diff options
Diffstat (limited to 'tools')
320 files changed, 13493 insertions, 2435 deletions
diff --git a/tools/Makefile b/tools/Makefile index d6f307dfb..7dc820a8c 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -32,6 +32,10 @@ help: @echo ' from the kernel command line to build and install one of' @echo ' the tools above' @echo '' + @echo ' $$ make tools/all' + @echo '' + @echo ' builds all tools.' + @echo '' @echo ' $$ make tools/install' @echo '' @echo ' installs all tools.' @@ -77,6 +81,11 @@ tmon: FORCE freefall: FORCE $(call descend,laptop/$@) +all: acpi cgroup cpupower hv firewire lguest \ + perf selftests turbostat usb \ + virtio vm net x86_energy_perf_policy \ + tmon freefall + acpi_install: $(call descend,power/$(@:_install=),install) @@ -101,7 +110,7 @@ freefall_install: install: acpi_install cgroup_install cpupower_install hv_install firewire_install lguest_install \ perf_install selftests_install turbostat_install usb_install \ virtio_install vm_install net_install x86_energy_perf_policy_install \ - tmon freefall_install + tmon_install freefall_install acpi_clean: $(call descend,power/acpi,clean) diff --git a/tools/build/.gitignore b/tools/build/.gitignore new file mode 100644 index 000000000..a776371a3 --- /dev/null +++ b/tools/build/.gitignore @@ -0,0 +1 @@ +fixdep diff --git a/tools/build/Build b/tools/build/Build new file mode 100644 index 000000000..63a6c34c0 --- /dev/null +++ b/tools/build/Build @@ -0,0 +1 @@ +fixdep-y := fixdep.o diff --git a/tools/build/Build.include b/tools/build/Build.include index 4c8daaccb..4d000bc95 100644 --- a/tools/build/Build.include +++ b/tools/build/Build.include @@ -55,14 +55,25 @@ make-cmd = $(call escsq,$(subst \#,\\\#,$(subst $$,$$$$,$(cmd_$(1))))) any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^) ### +# Copy dependency data into .cmd file +# - gcc -M dependency info +# - command line to create object 'cmd_object :=' +dep-cmd = $(if $(wildcard $(fixdep)), \ + $(fixdep) $(depfile) $@ '$(make-cmd)' > $(dot-target).tmp; \ + rm -f $(depfile); \ + mv -f $(dot-target).tmp $(dot-target).cmd, \ + printf '\# cannot find fixdep (%s)\n' $(fixdep) > $(dot-target).cmd; \ + printf '\# using basic dep data\n\n' >> $(dot-target).cmd; \ + cat $(depfile) >> $(dot-target).cmd; \ + printf '%s\n' 'cmd_$@ := $(make-cmd)' >> $(dot-target).cmd) + +### # if_changed_dep - execute command if any prerequisite is newer than # target, or command line has changed and update # dependencies in the cmd file if_changed_dep = $(if $(strip $(any-prereq) $(arg-check)), \ @set -e; \ - $(echo-cmd) $(cmd_$(1)); \ - cat $(depfile) > $(dot-target).cmd; \ - printf '%s\n' 'cmd_$@ := $(make-cmd)' >> $(dot-target).cmd) + $(echo-cmd) $(cmd_$(1)) && $(dep-cmd)) # if_changed - execute command if any prerequisite is newer than # target, or command line has changed diff --git a/tools/build/Documentation/Build.txt b/tools/build/Documentation/Build.txt index aa5e092c4..a47bffbae 100644 --- a/tools/build/Documentation/Build.txt +++ b/tools/build/Documentation/Build.txt @@ -11,8 +11,9 @@ Unlike the kernel we don't have a single build object 'obj-y' list that where we setup source objects, but we support more. This allows one 'Build' file to carry a sources list for multiple build objects. -a) Build framework makefiles ----------------------------- + +Build framework makefiles +------------------------- The build framework consists of 2 Makefiles: @@ -23,7 +24,7 @@ While the 'Build.include' file contains just some generic definitions, the 'Makefile.build' file is the makefile used from the outside. It's interface/usage is following: - $ make -f tools/build/Makefile srctree=$(KSRC) dir=$(DIR) obj=$(OBJECT) + $ make -f tools/build/Makefile.build srctree=$(KSRC) dir=$(DIR) obj=$(OBJECT) where: @@ -38,8 +39,9 @@ called $(OBJECT)-in.o: which includes all compiled sources described in 'Build' makefiles. -a) Build makefiles ------------------- + +Build makefiles +--------------- The user supplies 'Build' makefiles that contains a objects list, and connects the build to nested directories. @@ -95,8 +97,31 @@ It's only a matter of 2 single commands to create the final binaries: You can check the 'ex' example in 'tools/build/tests/ex' for more details. -b) Rules --------- + +Makefile.include +---------------- + +The tools/build/Makefile.include makefile could be included +via user makefiles to get usefull definitions. + +It defines following interface: + + - build macro definition: + build := -f $(srctree)/tools/build/Makefile.build dir=. obj + + to make it easier to invoke build like: + make $(build)=ex + + +Fixdep +------ +It is necessary to build the fixdep helper before invoking the build. +The Makefile.include file adds the fixdep target, that could be +invoked by the user. + + +Rules +----- The build framework provides standard compilation rules to handle .S and .c compilation. @@ -104,8 +129,9 @@ compilation. It's possible to include special rule if needed (like we do for flex or bison code generation). -c) CFLAGS ---------- + +CFLAGS +------ It's possible to alter the standard object C flags in the following way: @@ -115,8 +141,8 @@ It's possible to alter the standard object C flags in the following way: This C flags changes has the scope of the Build makefile they are defined in. -d) Dependencies ---------------- +Dependencies +------------ For each built object file 'a.o' the '.a.cmd' is created and holds: @@ -130,8 +156,8 @@ All existing '.cmd' files are included in the Build process to follow properly the dependencies and trigger a rebuild when necessary. -e) Single rules ---------------- +Single rules +------------ It's possible to build single object file by choice, like: diff --git a/tools/build/Makefile b/tools/build/Makefile new file mode 100644 index 000000000..a93036272 --- /dev/null +++ b/tools/build/Makefile @@ -0,0 +1,43 @@ +ifeq ($(srctree),) +srctree := $(patsubst %/,%,$(dir $(shell pwd))) +srctree := $(patsubst %/,%,$(dir $(srctree))) +endif + +include $(srctree)/tools//scripts/Makefile.include + +define allow-override + $(if $(or $(findstring environment,$(origin $(1))),\ + $(findstring command line,$(origin $(1)))),,\ + $(eval $(1) = $(2))) +endef + +$(call allow-override,CC,$(CROSS_COMPILE)gcc) +$(call allow-override,LD,$(CROSS_COMPILE)ld) + +ifeq ($(V),1) + Q = +else + Q = @ +endif + +export Q srctree CC LD + +MAKEFLAGS := --no-print-directory +build := -f $(srctree)/tools/build/Makefile.build dir=. obj + +all: fixdep + +clean: + $(call QUIET_CLEAN, fixdep) + $(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete + $(Q)rm -f fixdep + +$(OUTPUT)fixdep-in.o: FORCE + $(Q)$(MAKE) $(build)=fixdep + +$(OUTPUT)fixdep: $(OUTPUT)fixdep-in.o + $(QUIET_LINK)$(CC) $(LDFLAGS) -o $@ $< + +FORCE: + +.PHONY: FORCE diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build index 0c5f48552..4a96473b1 100644 --- a/tools/build/Makefile.build +++ b/tools/build/Makefile.build @@ -21,6 +21,13 @@ endif build-dir := $(srctree)/tools/build +# Define $(fixdep) for dep-cmd function +ifeq ($(OUTPUT),) + fixdep := $(build-dir)/fixdep +else + fixdep := $(OUTPUT)/fixdep +endif + # Generic definitions include $(build-dir)/Build.include diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature index c8fe6d177..37ff4c9f9 100644 --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -53,7 +53,8 @@ FEATURE_TESTS ?= \ libdw-dwarf-unwind \ zlib \ lzma \ - get_cpuid + get_cpuid \ + bpf FEATURE_DISPLAY ?= \ dwarf \ @@ -71,7 +72,8 @@ FEATURE_DISPLAY ?= \ libdw-dwarf-unwind \ zlib \ lzma \ - get_cpuid + get_cpuid \ + bpf # Set FEATURE_CHECK_(C|LD)FLAGS-all for all FEATURE_TESTS features. # If in the future we need per-feature checks/flags for features not @@ -121,8 +123,9 @@ define feature_print_text_code MSG = $(shell printf '...%30s: %s' $(1) $(2)) endef +FEATURE_DUMP_FILENAME = $(OUTPUT)FEATURE-DUMP$(FEATURE_USER) FEATURE_DUMP := $(foreach feat,$(FEATURE_DISPLAY),feature-$(feat)($(feature-$(feat)))) -FEATURE_DUMP_FILE := $(shell touch $(OUTPUT)FEATURE-DUMP; cat $(OUTPUT)FEATURE-DUMP) +FEATURE_DUMP_FILE := $(shell touch $(FEATURE_DUMP_FILENAME); cat $(FEATURE_DUMP_FILENAME)) ifeq ($(dwarf-post-unwind),1) FEATURE_DUMP += dwarf-post-unwind($(dwarf-post-unwind-text)) @@ -131,16 +134,16 @@ endif # The $(feature_display) controls the default detection message # output. It's set if: # - detected features differes from stored features from -# last build (in FEATURE-DUMP file) +# last build (in $(FEATURE_DUMP_FILENAME) file) # - one of the $(FEATURE_DISPLAY) is not detected # - VF is enabled ifneq ("$(FEATURE_DUMP)","$(FEATURE_DUMP_FILE)") - $(shell echo "$(FEATURE_DUMP)" > $(OUTPUT)FEATURE-DUMP) + $(shell echo "$(FEATURE_DUMP)" > $(FEATURE_DUMP_FILENAME)) feature_display := 1 endif -feature_display_check = $(eval $(feature_check_code)) +feature_display_check = $(eval $(feature_check_display_code)) define feature_display_check_code ifneq ($(feature-$(1)), 1) feature_display := 1 diff --git a/tools/build/Makefile.include b/tools/build/Makefile.include new file mode 100644 index 000000000..4e09ad617 --- /dev/null +++ b/tools/build/Makefile.include @@ -0,0 +1,10 @@ +build := -f $(srctree)/tools/build/Makefile.build dir=. obj + +ifdef CROSS_COMPILE +fixdep: +else +fixdep: + $(Q)$(MAKE) -C $(srctree)/tools/build fixdep +endif + +.PHONY: fixdep diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index e43a2971b..cea04ce9f 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -132,10 +132,10 @@ test-libbfd.bin: $(BUILD) -DPACKAGE='"perf"' -lbfd -lz -liberty -ldl test-liberty.bin: - $(CC) -Wall -Werror -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' -lbfd -ldl -liberty + $(CC) $(CFLAGS) -Wall -Werror -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty test-liberty-z.bin: - $(CC) -Wall -Werror -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' -lbfd -ldl -liberty -lz + $(CC) $(CFLAGS) -Wall -Werror -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' $(LDFLAGS) -lbfd -ldl -liberty -lz test-cplus-demangle.bin: $(BUILD) -liberty diff --git a/tools/build/fixdep.c b/tools/build/fixdep.c new file mode 100644 index 000000000..1521d36ce --- /dev/null +++ b/tools/build/fixdep.c @@ -0,0 +1,168 @@ +/* + * "Optimize" a list of dependencies as spit out by gcc -MD + * for the build framework. + * + * Original author: + * Copyright 2002 by Kai Germaschewski <kai.germaschewski@gmx.de> + * + * This code has been borrowed from kbuild's fixdep (scripts/basic/fixdep.c), + * Please check it for detailed explanation. This fixdep borow only the + * base transformation of dependecies without the CONFIG mangle. + */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <unistd.h> +#include <fcntl.h> +#include <string.h> +#include <stdlib.h> +#include <stdio.h> +#include <limits.h> + +char *target; +char *depfile; +char *cmdline; + +static void usage(void) +{ + fprintf(stderr, "Usage: fixdep <depfile> <target> <cmdline>\n"); + exit(1); +} + +/* + * Print out the commandline prefixed with cmd_<target filename> := + */ +static void print_cmdline(void) +{ + printf("cmd_%s := %s\n\n", target, cmdline); +} + +/* + * Important: The below generated source_foo.o and deps_foo.o variable + * assignments are parsed not only by make, but also by the rather simple + * parser in scripts/mod/sumversion.c. + */ +static void parse_dep_file(void *map, size_t len) +{ + char *m = map; + char *end = m + len; + char *p; + char s[PATH_MAX]; + int is_target; + int saw_any_target = 0; + int is_first_dep = 0; + + while (m < end) { + /* Skip any "white space" */ + while (m < end && (*m == ' ' || *m == '\\' || *m == '\n')) + m++; + /* Find next "white space" */ + p = m; + while (p < end && *p != ' ' && *p != '\\' && *p != '\n') + p++; + /* Is the token we found a target name? */ + is_target = (*(p-1) == ':'); + /* Don't write any target names into the dependency file */ + if (is_target) { + /* The /next/ file is the first dependency */ + is_first_dep = 1; + } else { + /* Save this token/filename */ + memcpy(s, m, p-m); + s[p - m] = 0; + + /* + * Do not list the source file as dependency, + * so that kbuild is not confused if a .c file + * is rewritten into .S or vice versa. Storing + * it in source_* is needed for modpost to + * compute srcversions. + */ + if (is_first_dep) { + /* + * If processing the concatenation of + * multiple dependency files, only + * process the first target name, which + * will be the original source name, + * and ignore any other target names, + * which will be intermediate temporary + * files. + */ + if (!saw_any_target) { + saw_any_target = 1; + printf("source_%s := %s\n\n", + target, s); + printf("deps_%s := \\\n", + target); + } + is_first_dep = 0; + } else + printf(" %s \\\n", s); + } + /* + * Start searching for next token immediately after the first + * "whitespace" character that follows this token. + */ + m = p + 1; + } + + if (!saw_any_target) { + fprintf(stderr, "fixdep: parse error; no targets found\n"); + exit(1); + } + + printf("\n%s: $(deps_%s)\n\n", target, target); + printf("$(deps_%s):\n", target); +} + +static void print_deps(void) +{ + struct stat st; + int fd; + void *map; + + fd = open(depfile, O_RDONLY); + if (fd < 0) { + fprintf(stderr, "fixdep: error opening depfile: "); + perror(depfile); + exit(2); + } + if (fstat(fd, &st) < 0) { + fprintf(stderr, "fixdep: error fstat'ing depfile: "); + perror(depfile); + exit(2); + } + if (st.st_size == 0) { + fprintf(stderr, "fixdep: %s is empty\n", depfile); + close(fd); + return; + } + map = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0); + if ((long) map == -1) { + perror("fixdep: mmap"); + close(fd); + return; + } + + parse_dep_file(map, st.st_size); + + munmap(map, st.st_size); + + close(fd); +} + +int main(int argc, char **argv) +{ + if (argc != 4) + usage(); + + depfile = argv[1]; + target = argv[2]; + cmdline = argv[3]; + + print_cmdline(); + print_deps(); + + return 0; +} diff --git a/tools/build/tests/ex/Build b/tools/build/tests/ex/Build index 429c7d452..4d502f9b1 100644 --- a/tools/build/tests/ex/Build +++ b/tools/build/tests/ex/Build @@ -4,6 +4,7 @@ ex-y += b.o ex-y += b.o ex-y += empty/ ex-y += empty2/ +ex-y += inc.o libex-y += c.o libex-y += d.o diff --git a/tools/build/tests/ex/Makefile b/tools/build/tests/ex/Makefile index 52d247607..c50d5782a 100644 --- a/tools/build/tests/ex/Makefile +++ b/tools/build/tests/ex/Makefile @@ -1,19 +1,22 @@ -export srctree := ../../../.. +export srctree := $(abspath ../../../..) export CC := gcc export LD := ld export AR := ar -build := -f $(srctree)/tools/build/Makefile.build dir=. obj +ex: + +include $(srctree)/tools/build/Makefile.include + ex: ex-in.o libex-in.o gcc -o $@ $^ -ex.%: FORCE +ex.%: fixdep FORCE make -f $(srctree)/tools/build/Makefile.build dir=. $@ -ex-in.o: FORCE +ex-in.o: fixdep FORCE make $(build)=ex -libex-in.o: FORCE +libex-in.o: fixdep FORCE make $(build)=libex clean: diff --git a/tools/build/tests/ex/ex.c b/tools/build/tests/ex/ex.c index dc42eb2e1..57de6074d 100644 --- a/tools/build/tests/ex/ex.c +++ b/tools/build/tests/ex/ex.c @@ -5,6 +5,7 @@ int c(void); int d(void); int e(void); int f(void); +int inc(void); int main(void) { @@ -14,6 +15,7 @@ int main(void) d(); e(); f(); + inc(); return 0; } diff --git a/tools/build/tests/ex/inc.c b/tools/build/tests/ex/inc.c new file mode 100644 index 000000000..c20f1e903 --- /dev/null +++ b/tools/build/tests/ex/inc.c @@ -0,0 +1,8 @@ +#ifdef INCLUDE +#include "krava.h" +#endif + +int inc(void) +{ + return 0; +} diff --git a/tools/build/tests/run.sh b/tools/build/tests/run.sh index 5494f8ea7..44d2a0fad 100755 --- a/tools/build/tests/run.sh +++ b/tools/build/tests/run.sh @@ -34,9 +34,36 @@ function test_ex_suffix { make -C ex V=1 clean > /dev/null 2>&1 rm -f ex.out } + +function test_ex_include { + make -C ex V=1 clean > ex.out 2>&1 + + # build with krava.h include + touch ex/krava.h + make -C ex V=1 CFLAGS=-DINCLUDE >> ex.out 2>&1 + + if [ ! -x ./ex/ex ]; then + echo FAILED + exit -1 + fi + + # build without the include + rm -f ex/krava.h ex/ex + make -C ex V=1 >> ex.out 2>&1 + + if [ ! -x ./ex/ex ]; then + echo FAILED + exit -1 + fi + + make -C ex V=1 clean > /dev/null 2>&1 + rm -f ex.out +} + echo -n Testing.. test_ex test_ex_suffix +test_ex_include echo OK diff --git a/tools/iio/generic_buffer.c b/tools/iio/generic_buffer.c index 9f7b85bf6..01c4f6780 100644 --- a/tools/iio/generic_buffer.c +++ b/tools/iio/generic_buffer.c @@ -328,6 +328,15 @@ int main(int argc, char **argv) "diag %s\n", dev_dir_name); goto error_free_triggername; } + if (!num_channels) { + fprintf(stderr, + "No channels are enabled, we have nothing to scan.\n"); + fprintf(stderr, "Enable channels manually in " + FORMAT_SCAN_ELEMENTS_DIR + "/*_en and try again.\n", dev_dir_name); + ret = -ENOENT; + goto error_free_triggername; + } /* * Construct the directory name for the associated buffer. diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c index cd3fd41b4..d51eb0420 100644 --- a/tools/iio/iio_event_monitor.c +++ b/tools/iio/iio_event_monitor.c @@ -284,7 +284,11 @@ int main(int argc, char **argv) ret = ioctl(fd, IIO_GET_EVENT_FD_IOCTL, &event_fd); if (ret == -1 || event_fd == -1) { ret = -errno; - fprintf(stderr, "Failed to retrieve event fd\n"); + if (ret == -ENODEV) + fprintf(stderr, + "This device does not support events\n"); + else + fprintf(stderr, "Failed to retrieve event fd\n"); if (close(fd) == -1) perror("Failed to close character device file"); diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h index 909808386..fa7208a32 100644 --- a/tools/include/linux/compiler.h +++ b/tools/include/linux/compiler.h @@ -43,13 +43,29 @@ #include <linux/types.h> +/* + * Following functions are taken from kernel sources and + * break aliasing rules in their original form. + * + * While kernel is compiled with -fno-strict-aliasing, + * perf uses -Wstrict-aliasing=3 which makes build fail + * under gcc 4.4. + * + * Using extra __may_alias__ type to allow aliasing + * in this case. + */ +typedef __u8 __attribute__((__may_alias__)) __u8_alias_t; +typedef __u16 __attribute__((__may_alias__)) __u16_alias_t; +typedef __u32 __attribute__((__may_alias__)) __u32_alias_t; +typedef __u64 __attribute__((__may_alias__)) __u64_alias_t; + static __always_inline void __read_once_size(const volatile void *p, void *res, int size) { switch (size) { - case 1: *(__u8 *)res = *(volatile __u8 *)p; break; - case 2: *(__u16 *)res = *(volatile __u16 *)p; break; - case 4: *(__u32 *)res = *(volatile __u32 *)p; break; - case 8: *(__u64 *)res = *(volatile __u64 *)p; break; + case 1: *(__u8_alias_t *) res = *(volatile __u8_alias_t *) p; break; + case 2: *(__u16_alias_t *) res = *(volatile __u16_alias_t *) p; break; + case 4: *(__u32_alias_t *) res = *(volatile __u32_alias_t *) p; break; + case 8: *(__u64_alias_t *) res = *(volatile __u64_alias_t *) p; break; default: barrier(); __builtin_memcpy((void *)res, (const void *)p, size); @@ -60,10 +76,10 @@ static __always_inline void __read_once_size(const volatile void *p, void *res, static __always_inline void __write_once_size(volatile void *p, void *res, int size) { switch (size) { - case 1: *(volatile __u8 *)p = *(__u8 *)res; break; - case 2: *(volatile __u16 *)p = *(__u16 *)res; break; - case 4: *(volatile __u32 *)p = *(__u32 *)res; break; - case 8: *(volatile __u64 *)p = *(__u64 *)res; break; + case 1: *(volatile __u8_alias_t *) p = *(__u8_alias_t *) res; break; + case 2: *(volatile __u16_alias_t *) p = *(__u16_alias_t *) res; break; + case 4: *(volatile __u32_alias_t *) p = *(__u32_alias_t *) res; break; + case 8: *(volatile __u64_alias_t *) p = *(__u64_alias_t *) res; break; default: barrier(); __builtin_memcpy((void *)p, (const void *)res, size); diff --git a/tools/include/linux/err.h b/tools/include/linux/err.h new file mode 100644 index 000000000..bdc3dd813 --- /dev/null +++ b/tools/include/linux/err.h @@ -0,0 +1,49 @@ +#ifndef __TOOLS_LINUX_ERR_H +#define __TOOLS_LINUX_ERR_H + +#include <linux/compiler.h> +#include <linux/types.h> + +#include <asm/errno.h> + +/* + * Original kernel header comment: + * + * Kernel pointers have redundant information, so we can use a + * scheme where we can return either an error code or a normal + * pointer with the same return value. + * + * This should be a per-architecture thing, to allow different + * error and pointer decisions. + * + * Userspace note: + * The same principle works for userspace, because 'error' pointers + * fall down to the unused hole far from user space, as described + * in Documentation/x86/x86_64/mm.txt for x86_64 arch: + * + * 0000000000000000 - 00007fffffffffff (=47 bits) user space, different per mm hole caused by [48:63] sign extension + * ffffffffffe00000 - ffffffffffffffff (=2 MB) unused hole + * + * It should be the same case for other architectures, because + * this code is used in generic kernel code. + */ +#define MAX_ERRNO 4095 + +#define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) + +static inline void * __must_check ERR_PTR(long error_) +{ + return (void *) error_; +} + +static inline long __must_check PTR_ERR(__force const void *ptr) +{ + return (long) ptr; +} + +static inline bool __must_check IS_ERR(__force const void *ptr) +{ + return IS_ERR_VALUE((unsigned long)ptr); +} + +#endif /* _LINUX_ERR_H */ diff --git a/tools/include/linux/filter.h b/tools/include/linux/filter.h new file mode 100644 index 000000000..327662559 --- /dev/null +++ b/tools/include/linux/filter.h @@ -0,0 +1,231 @@ +/* + * Linux Socket Filter Data Structures + */ +#ifndef __TOOLS_LINUX_FILTER_H +#define __TOOLS_LINUX_FILTER_H + +#include <linux/bpf.h> + +/* ArgX, context and stack frame pointer register positions. Note, + * Arg1, Arg2, Arg3, etc are used as argument mappings of function + * calls in BPF_CALL instruction. + */ +#define BPF_REG_ARG1 BPF_REG_1 +#define BPF_REG_ARG2 BPF_REG_2 +#define BPF_REG_ARG3 BPF_REG_3 +#define BPF_REG_ARG4 BPF_REG_4 +#define BPF_REG_ARG5 BPF_REG_5 +#define BPF_REG_CTX BPF_REG_6 +#define BPF_REG_FP BPF_REG_10 + +/* Additional register mappings for converted user programs. */ +#define BPF_REG_A BPF_REG_0 +#define BPF_REG_X BPF_REG_7 +#define BPF_REG_TMP BPF_REG_8 + +/* BPF program can access up to 512 bytes of stack space. */ +#define MAX_BPF_STACK 512 + +/* Helper macros for filter block array initializers. */ + +/* ALU ops on registers, bpf_add|sub|...: dst_reg += src_reg */ + +#define BPF_ALU64_REG(OP, DST, SRC) \ + ((struct bpf_insn) { \ + .code = BPF_ALU64 | BPF_OP(OP) | BPF_X, \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = 0, \ + .imm = 0 }) + +#define BPF_ALU32_REG(OP, DST, SRC) \ + ((struct bpf_insn) { \ + .code = BPF_ALU | BPF_OP(OP) | BPF_X, \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = 0, \ + .imm = 0 }) + +/* ALU ops on immediates, bpf_add|sub|...: dst_reg += imm32 */ + +#define BPF_ALU64_IMM(OP, DST, IMM) \ + ((struct bpf_insn) { \ + .code = BPF_ALU64 | BPF_OP(OP) | BPF_K, \ + .dst_reg = DST, \ + .src_reg = 0, \ + .off = 0, \ + .imm = IMM }) + +#define BPF_ALU32_IMM(OP, DST, IMM) \ + ((struct bpf_insn) { \ + .code = BPF_ALU | BPF_OP(OP) | BPF_K, \ + .dst_reg = DST, \ + .src_reg = 0, \ + .off = 0, \ + .imm = IMM }) + +/* Endianess conversion, cpu_to_{l,b}e(), {l,b}e_to_cpu() */ + +#define BPF_ENDIAN(TYPE, DST, LEN) \ + ((struct bpf_insn) { \ + .code = BPF_ALU | BPF_END | BPF_SRC(TYPE), \ + .dst_reg = DST, \ + .src_reg = 0, \ + .off = 0, \ + .imm = LEN }) + +/* Short form of mov, dst_reg = src_reg */ + +#define BPF_MOV64_REG(DST, SRC) \ + ((struct bpf_insn) { \ + .code = BPF_ALU64 | BPF_MOV | BPF_X, \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = 0, \ + .imm = 0 }) + +#define BPF_MOV32_REG(DST, SRC) \ + ((struct bpf_insn) { \ + .code = BPF_ALU | BPF_MOV | BPF_X, \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = 0, \ + .imm = 0 }) + +/* Short form of mov, dst_reg = imm32 */ + +#define BPF_MOV64_IMM(DST, IMM) \ + ((struct bpf_insn) { \ + .code = BPF_ALU64 | BPF_MOV | BPF_K, \ + .dst_reg = DST, \ + .src_reg = 0, \ + .off = 0, \ + .imm = IMM }) + +#define BPF_MOV32_IMM(DST, IMM) \ + ((struct bpf_insn) { \ + .code = BPF_ALU | BPF_MOV | BPF_K, \ + .dst_reg = DST, \ + .src_reg = 0, \ + .off = 0, \ + .imm = IMM }) + +/* Short form of mov based on type, BPF_X: dst_reg = src_reg, BPF_K: dst_reg = imm32 */ + +#define BPF_MOV64_RAW(TYPE, DST, SRC, IMM) \ + ((struct bpf_insn) { \ + .code = BPF_ALU64 | BPF_MOV | BPF_SRC(TYPE), \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = 0, \ + .imm = IMM }) + +#define BPF_MOV32_RAW(TYPE, DST, SRC, IMM) \ + ((struct bpf_insn) { \ + .code = BPF_ALU | BPF_MOV | BPF_SRC(TYPE), \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = 0, \ + .imm = IMM }) + +/* Direct packet access, R0 = *(uint *) (skb->data + imm32) */ + +#define BPF_LD_ABS(SIZE, IMM) \ + ((struct bpf_insn) { \ + .code = BPF_LD | BPF_SIZE(SIZE) | BPF_ABS, \ + .dst_reg = 0, \ + .src_reg = 0, \ + .off = 0, \ + .imm = IMM }) + +/* Indirect packet access, R0 = *(uint *) (skb->data + src_reg + imm32) */ + +#define BPF_LD_IND(SIZE, SRC, IMM) \ + ((struct bpf_insn) { \ + .code = BPF_LD | BPF_SIZE(SIZE) | BPF_IND, \ + .dst_reg = 0, \ + .src_reg = SRC, \ + .off = 0, \ + .imm = IMM }) + +/* Memory load, dst_reg = *(uint *) (src_reg + off16) */ + +#define BPF_LDX_MEM(SIZE, DST, SRC, OFF) \ + ((struct bpf_insn) { \ + .code = BPF_LDX | BPF_SIZE(SIZE) | BPF_MEM, \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = OFF, \ + .imm = 0 }) + +/* Memory store, *(uint *) (dst_reg + off16) = src_reg */ + +#define BPF_STX_MEM(SIZE, DST, SRC, OFF) \ + ((struct bpf_insn) { \ + .code = BPF_STX | BPF_SIZE(SIZE) | BPF_MEM, \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = OFF, \ + .imm = 0 }) + +/* Memory store, *(uint *) (dst_reg + off16) = imm32 */ + +#define BPF_ST_MEM(SIZE, DST, OFF, IMM) \ + ((struct bpf_insn) { \ + .code = BPF_ST | BPF_SIZE(SIZE) | BPF_MEM, \ + .dst_reg = DST, \ + .src_reg = 0, \ + .off = OFF, \ + .imm = IMM }) + +/* Conditional jumps against registers, if (dst_reg 'op' src_reg) goto pc + off16 */ + +#define BPF_JMP_REG(OP, DST, SRC, OFF) \ + ((struct bpf_insn) { \ + .code = BPF_JMP | BPF_OP(OP) | BPF_X, \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = OFF, \ + .imm = 0 }) + +/* Conditional jumps against immediates, if (dst_reg 'op' imm32) goto pc + off16 */ + +#define BPF_JMP_IMM(OP, DST, IMM, OFF) \ + ((struct bpf_insn) { \ + .code = BPF_JMP | BPF_OP(OP) | BPF_K, \ + .dst_reg = DST, \ + .src_reg = 0, \ + .off = OFF, \ + .imm = IMM }) + +/* Function call */ + +#define BPF_EMIT_CALL(FUNC) \ + ((struct bpf_insn) { \ + .code = BPF_JMP | BPF_CALL, \ + .dst_reg = 0, \ + .src_reg = 0, \ + .off = 0, \ + .imm = ((FUNC) - BPF_FUNC_unspec) }) + +/* Raw code statement block */ + +#define BPF_RAW_INSN(CODE, DST, SRC, OFF, IMM) \ + ((struct bpf_insn) { \ + .code = CODE, \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = OFF, \ + .imm = IMM }) + +/* Program exit */ + +#define BPF_EXIT_INSN() \ + ((struct bpf_insn) { \ + .code = BPF_JMP | BPF_EXIT, \ + .dst_reg = 0, \ + .src_reg = 0, \ + .off = 0, \ + .imm = 0 }) + +#endif /* __TOOLS_LINUX_FILTER_H */ diff --git a/tools/include/linux/list.h b/tools/include/linux/list.h index 76b014c96..a017f1595 100644 --- a/tools/include/linux/list.h +++ b/tools/include/linux/list.h @@ -1,3 +1,4 @@ +#include <linux/compiler.h> #include <linux/kernel.h> #include <linux/types.h> diff --git a/tools/lib/api/Build b/tools/lib/api/Build index 3653965cf..e8b8a23b9 100644 --- a/tools/lib/api/Build +++ b/tools/lib/api/Build @@ -1,2 +1,3 @@ libapi-y += fd/ libapi-y += fs/ +libapi-y += cpu.o diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile index fe1b02c2c..d85904dc9 100644 --- a/tools/lib/api/Makefile +++ b/tools/lib/api/Makefile @@ -21,12 +21,14 @@ CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 RM = rm -f -build := -f $(srctree)/tools/build/Makefile.build dir=. obj API_IN := $(OUTPUT)libapi-in.o +all: + export srctree OUTPUT CC LD CFLAGS V +include $(srctree)/tools/build/Makefile.include -all: $(LIBFILE) +all: fixdep $(LIBFILE) $(API_IN): FORCE @$(MAKE) $(build)=libapi diff --git a/tools/lib/api/cpu.c b/tools/lib/api/cpu.c new file mode 100644 index 000000000..8c6489356 --- /dev/null +++ b/tools/lib/api/cpu.c @@ -0,0 +1,18 @@ +#include <stdio.h> + +#include "cpu.h" +#include "fs/fs.h" + +int cpu__get_max_freq(unsigned long long *freq) +{ + char entry[PATH_MAX]; + int cpu; + + if (sysfs__read_int("devices/system/cpu/online", &cpu) < 0) + return -1; + + snprintf(entry, sizeof(entry), + "devices/system/cpu/cpu%d/cpufreq/cpuinfo_max_freq", cpu); + + return sysfs__read_ull(entry, freq); +} diff --git a/tools/lib/api/cpu.h b/tools/lib/api/cpu.h new file mode 100644 index 000000000..81e9d3955 --- /dev/null +++ b/tools/lib/api/cpu.h @@ -0,0 +1,6 @@ +#ifndef __API_CPU__ +#define __API_CPU__ + +int cpu__get_max_freq(unsigned long long *freq); + +#endif /* __API_CPU__ */ diff --git a/tools/lib/api/fs/Build b/tools/lib/api/fs/Build index 6de5a4f0b..f4ed9629a 100644 --- a/tools/lib/api/fs/Build +++ b/tools/lib/api/fs/Build @@ -1,4 +1,2 @@ libapi-y += fs.o -libapi-y += debugfs.o -libapi-y += findfs.o -libapi-y += tracefs.o +libapi-y += tracing_path.o diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c deleted file mode 100644 index eb7cf4d18..000000000 --- a/tools/lib/api/fs/debugfs.c +++ /dev/null @@ -1,129 +0,0 @@ -#define _GNU_SOURCE -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <stdbool.h> -#include <sys/vfs.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/mount.h> -#include <linux/kernel.h> - -#include "debugfs.h" -#include "tracefs.h" - -#ifndef DEBUGFS_DEFAULT_PATH -#define DEBUGFS_DEFAULT_PATH "/sys/kernel/debug" -#endif - -char debugfs_mountpoint[PATH_MAX + 1] = DEBUGFS_DEFAULT_PATH; - -static const char * const debugfs_known_mountpoints[] = { - DEBUGFS_DEFAULT_PATH, - "/debug", - 0, -}; - -static bool debugfs_found; - -bool debugfs_configured(void) -{ - return debugfs_find_mountpoint() != NULL; -} - -/* find the path to the mounted debugfs */ -const char *debugfs_find_mountpoint(void) -{ - const char *ret; - - if (debugfs_found) - return (const char *)debugfs_mountpoint; - - ret = find_mountpoint("debugfs", (long) DEBUGFS_MAGIC, - debugfs_mountpoint, PATH_MAX + 1, - debugfs_known_mountpoints); - if (ret) - debugfs_found = true; - - return ret; -} - -/* mount the debugfs somewhere if it's not mounted */ -char *debugfs_mount(const char *mountpoint) -{ - /* see if it's already mounted */ - if (debugfs_find_mountpoint()) - goto out; - - /* if not mounted and no argument */ - if (mountpoint == NULL) { - /* see if environment variable set */ - mountpoint = getenv(PERF_DEBUGFS_ENVIRONMENT); - /* if no environment variable, use default */ - if (mountpoint == NULL) - mountpoint = DEBUGFS_DEFAULT_PATH; - } - - if (mount(NULL, mountpoint, "debugfs", 0, NULL) < 0) - return NULL; - - /* save the mountpoint */ - debugfs_found = true; - strncpy(debugfs_mountpoint, mountpoint, sizeof(debugfs_mountpoint)); -out: - return debugfs_mountpoint; -} - -int debugfs__strerror_open(int err, char *buf, size_t size, const char *filename) -{ - char sbuf[128]; - - switch (err) { - case ENOENT: - if (debugfs_found) { - snprintf(buf, size, - "Error:\tFile %s/%s not found.\n" - "Hint:\tPerhaps this kernel misses some CONFIG_ setting to enable this feature?.\n", - debugfs_mountpoint, filename); - break; - } - snprintf(buf, size, "%s", - "Error:\tUnable to find debugfs\n" - "Hint:\tWas your kernel compiled with debugfs support?\n" - "Hint:\tIs the debugfs filesystem mounted?\n" - "Hint:\tTry 'sudo mount -t debugfs nodev /sys/kernel/debug'"); - break; - case EACCES: { - const char *mountpoint = debugfs_mountpoint; - - if (!access(debugfs_mountpoint, R_OK) && strncmp(filename, "tracing/", 8) == 0) { - const char *tracefs_mntpoint = tracefs_find_mountpoint(); - - if (tracefs_mntpoint) - mountpoint = tracefs_mntpoint; - } - - snprintf(buf, size, - "Error:\tNo permissions to read %s/%s\n" - "Hint:\tTry 'sudo mount -o remount,mode=755 %s'\n", - debugfs_mountpoint, filename, mountpoint); - } - break; - default: - snprintf(buf, size, "%s", strerror_r(err, sbuf, sizeof(sbuf))); - break; - } - - return 0; -} - -int debugfs__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name) -{ - char path[PATH_MAX]; - - snprintf(path, PATH_MAX, "tracing/events/%s/%s", sys, name ?: "*"); - - return debugfs__strerror_open(err, buf, size, path); -} diff --git a/tools/lib/api/fs/debugfs.h b/tools/lib/api/fs/debugfs.h deleted file mode 100644 index 455023698..000000000 --- a/tools/lib/api/fs/debugfs.h +++ /dev/null @@ -1,23 +0,0 @@ -#ifndef __API_DEBUGFS_H__ -#define __API_DEBUGFS_H__ - -#include "findfs.h" - -#ifndef DEBUGFS_MAGIC -#define DEBUGFS_MAGIC 0x64626720 -#endif - -#ifndef PERF_DEBUGFS_ENVIRONMENT -#define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR" -#endif - -bool debugfs_configured(void); -const char *debugfs_find_mountpoint(void); -char *debugfs_mount(const char *mountpoint); - -extern char debugfs_mountpoint[]; - -int debugfs__strerror_open(int err, char *buf, size_t size, const char *filename); -int debugfs__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name); - -#endif /* __API_DEBUGFS_H__ */ diff --git a/tools/lib/api/fs/findfs.c b/tools/lib/api/fs/findfs.c deleted file mode 100644 index 49946cb6d..000000000 --- a/tools/lib/api/fs/findfs.c +++ /dev/null @@ -1,63 +0,0 @@ -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <stdbool.h> -#include <sys/vfs.h> - -#include "findfs.h" - -/* verify that a mountpoint is actually the type we want */ - -int valid_mountpoint(const char *mount, long magic) -{ - struct statfs st_fs; - - if (statfs(mount, &st_fs) < 0) - return -ENOENT; - else if ((long)st_fs.f_type != magic) - return -ENOENT; - - return 0; -} - -/* find the path to a mounted file system */ -const char *find_mountpoint(const char *fstype, long magic, - char *mountpoint, int len, - const char * const *known_mountpoints) -{ - const char * const *ptr; - char format[128]; - char type[100]; - FILE *fp; - - if (known_mountpoints) { - ptr = known_mountpoints; - while (*ptr) { - if (valid_mountpoint(*ptr, magic) == 0) { - strncpy(mountpoint, *ptr, len - 1); - mountpoint[len-1] = 0; - return mountpoint; - } - ptr++; - } - } - - /* give up and parse /proc/mounts */ - fp = fopen("/proc/mounts", "r"); - if (fp == NULL) - return NULL; - - snprintf(format, 128, "%%*s %%%ds %%99s %%*s %%*d %%*d\n", len); - - while (fscanf(fp, format, mountpoint, type) == 2) { - if (strcmp(type, fstype) == 0) - break; - } - fclose(fp); - - if (strcmp(type, fstype) != 0) - return NULL; - - return mountpoint; -} diff --git a/tools/lib/api/fs/findfs.h b/tools/lib/api/fs/findfs.h deleted file mode 100644 index b6f5d05ac..000000000 --- a/tools/lib/api/fs/findfs.h +++ /dev/null @@ -1,23 +0,0 @@ -#ifndef __API_FINDFS_H__ -#define __API_FINDFS_H__ - -#include <stdbool.h> - -#define _STR(x) #x -#define STR(x) _STR(x) - -/* - * On most systems <limits.h> would have given us this, but not on some systems - * (e.g. GNU/Hurd). - */ -#ifndef PATH_MAX -#define PATH_MAX 4096 -#endif - -const char *find_mountpoint(const char *fstype, long magic, - char *mountpoint, int len, - const char * const *known_mountpoints); - -int valid_mountpoint(const char *mount, long magic); - -#endif /* __API_FINDFS_H__ */ diff --git a/tools/lib/api/fs/fs.c b/tools/lib/api/fs/fs.c index 128ef6332..459599d1b 100644 --- a/tools/lib/api/fs/fs.c +++ b/tools/lib/api/fs/fs.c @@ -1,7 +1,6 @@ -/* TODO merge/factor in debugfs.c here */ - #include <ctype.h> #include <errno.h> +#include <limits.h> #include <stdbool.h> #include <stdio.h> #include <stdlib.h> @@ -11,10 +10,29 @@ #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> +#include <sys/mount.h> -#include "debugfs.h" #include "fs.h" +#define _STR(x) #x +#define STR(x) _STR(x) + +#ifndef SYSFS_MAGIC +#define SYSFS_MAGIC 0x62656572 +#endif + +#ifndef PROC_SUPER_MAGIC +#define PROC_SUPER_MAGIC 0x9fa0 +#endif + +#ifndef DEBUGFS_MAGIC +#define DEBUGFS_MAGIC 0x64626720 +#endif + +#ifndef TRACEFS_MAGIC +#define TRACEFS_MAGIC 0x74726163 +#endif + static const char * const sysfs__fs_known_mountpoints[] = { "/sys", 0, @@ -25,19 +43,48 @@ static const char * const procfs__known_mountpoints[] = { 0, }; +#ifndef DEBUGFS_DEFAULT_PATH +#define DEBUGFS_DEFAULT_PATH "/sys/kernel/debug" +#endif + +static const char * const debugfs__known_mountpoints[] = { + DEBUGFS_DEFAULT_PATH, + "/debug", + 0, +}; + + +#ifndef TRACEFS_DEFAULT_PATH +#define TRACEFS_DEFAULT_PATH "/sys/kernel/tracing" +#endif + +static const char * const tracefs__known_mountpoints[] = { + TRACEFS_DEFAULT_PATH, + "/sys/kernel/debug/tracing", + "/tracing", + "/trace", + 0, +}; + struct fs { const char *name; const char * const *mounts; - char path[PATH_MAX + 1]; + char path[PATH_MAX]; bool found; long magic; }; enum { - FS__SYSFS = 0, - FS__PROCFS = 1, + FS__SYSFS = 0, + FS__PROCFS = 1, + FS__DEBUGFS = 2, + FS__TRACEFS = 3, }; +#ifndef TRACEFS_MAGIC +#define TRACEFS_MAGIC 0x74726163 +#endif + static struct fs fs__entries[] = { [FS__SYSFS] = { .name = "sysfs", @@ -49,6 +96,16 @@ static struct fs fs__entries[] = { .mounts = procfs__known_mountpoints, .magic = PROC_SUPER_MAGIC, }, + [FS__DEBUGFS] = { + .name = "debugfs", + .mounts = debugfs__known_mountpoints, + .magic = DEBUGFS_MAGIC, + }, + [FS__TRACEFS] = { + .name = "tracefs", + .mounts = tracefs__known_mountpoints, + .magic = TRACEFS_MAGIC, + }, }; static bool fs__read_mounts(struct fs *fs) @@ -159,14 +216,54 @@ static const char *fs__mountpoint(int idx) return fs__get_mountpoint(fs); } -#define FS__MOUNTPOINT(name, idx) \ -const char *name##__mountpoint(void) \ -{ \ - return fs__mountpoint(idx); \ +static const char *mount_overload(struct fs *fs) +{ + size_t name_len = strlen(fs->name); + /* "PERF_" + name + "_ENVIRONMENT" + '\0' */ + char upper_name[5 + name_len + 12 + 1]; + + snprintf(upper_name, name_len, "PERF_%s_ENVIRONMENT", fs->name); + mem_toupper(upper_name, name_len); + + return getenv(upper_name) ?: *fs->mounts; +} + +static const char *fs__mount(int idx) +{ + struct fs *fs = &fs__entries[idx]; + const char *mountpoint; + + if (fs__mountpoint(idx)) + return (const char *)fs->path; + + mountpoint = mount_overload(fs); + + if (mount(NULL, mountpoint, fs->name, 0, NULL) < 0) + return NULL; + + return fs__check_mounts(fs) ? fs->path : NULL; +} + +#define FS(name, idx) \ +const char *name##__mountpoint(void) \ +{ \ + return fs__mountpoint(idx); \ +} \ + \ +const char *name##__mount(void) \ +{ \ + return fs__mount(idx); \ +} \ + \ +bool name##__configured(void) \ +{ \ + return name##__mountpoint() != NULL; \ } -FS__MOUNTPOINT(sysfs, FS__SYSFS); -FS__MOUNTPOINT(procfs, FS__PROCFS); +FS(sysfs, FS__SYSFS); +FS(procfs, FS__PROCFS); +FS(debugfs, FS__DEBUGFS); +FS(tracefs, FS__TRACEFS); int filename__read_int(const char *filename, int *value) { @@ -185,6 +282,50 @@ int filename__read_int(const char *filename, int *value) return err; } +int filename__read_ull(const char *filename, unsigned long long *value) +{ + char line[64]; + int fd = open(filename, O_RDONLY), err = -1; + + if (fd < 0) + return -1; + + if (read(fd, line, sizeof(line)) > 0) { + *value = strtoull(line, NULL, 10); + if (*value != ULLONG_MAX) + err = 0; + } + + close(fd); + return err; +} + +int sysfs__read_ull(const char *entry, unsigned long long *value) +{ + char path[PATH_MAX]; + const char *sysfs = sysfs__mountpoint(); + + if (!sysfs) + return -1; + + snprintf(path, sizeof(path), "%s/%s", sysfs, entry); + + return filename__read_ull(path, value); +} + +int sysfs__read_int(const char *entry, int *value) +{ + char path[PATH_MAX]; + const char *sysfs = sysfs__mountpoint(); + + if (!sysfs) + return -1; + + snprintf(path, sizeof(path), "%s/%s", sysfs, entry); + + return filename__read_int(path, value); +} + int sysctl__read_int(const char *sysctl, int *value) { char path[PATH_MAX]; diff --git a/tools/lib/api/fs/fs.h b/tools/lib/api/fs/fs.h index 6caa2bbc6..d024a7f68 100644 --- a/tools/lib/api/fs/fs.h +++ b/tools/lib/api/fs/fs.h @@ -1,17 +1,33 @@ #ifndef __API_FS__ #define __API_FS__ -#ifndef SYSFS_MAGIC -#define SYSFS_MAGIC 0x62656572 -#endif +#include <stdbool.h> -#ifndef PROC_SUPER_MAGIC -#define PROC_SUPER_MAGIC 0x9fa0 +/* + * On most systems <limits.h> would have given us this, but not on some systems + * (e.g. GNU/Hurd). + */ +#ifndef PATH_MAX +#define PATH_MAX 4096 #endif -const char *sysfs__mountpoint(void); -const char *procfs__mountpoint(void); +#define FS(name) \ + const char *name##__mountpoint(void); \ + const char *name##__mount(void); \ + bool name##__configured(void); \ + +FS(sysfs) +FS(procfs) +FS(debugfs) +FS(tracefs) + +#undef FS + int filename__read_int(const char *filename, int *value); +int filename__read_ull(const char *filename, unsigned long long *value); + int sysctl__read_int(const char *sysctl, int *value); +int sysfs__read_int(const char *entry, int *value); +int sysfs__read_ull(const char *entry, unsigned long long *value); #endif /* __API_FS__ */ diff --git a/tools/lib/api/fs/tracefs.c b/tools/lib/api/fs/tracefs.c deleted file mode 100644 index e4aa9688b..000000000 --- a/tools/lib/api/fs/tracefs.c +++ /dev/null @@ -1,78 +0,0 @@ -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <stdbool.h> -#include <sys/vfs.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/mount.h> -#include <linux/kernel.h> - -#include "tracefs.h" - -#ifndef TRACEFS_DEFAULT_PATH -#define TRACEFS_DEFAULT_PATH "/sys/kernel/tracing" -#endif - -char tracefs_mountpoint[PATH_MAX + 1] = TRACEFS_DEFAULT_PATH; - -static const char * const tracefs_known_mountpoints[] = { - TRACEFS_DEFAULT_PATH, - "/sys/kernel/debug/tracing", - "/tracing", - "/trace", - 0, -}; - -static bool tracefs_found; - -bool tracefs_configured(void) -{ - return tracefs_find_mountpoint() != NULL; -} - -/* find the path to the mounted tracefs */ -const char *tracefs_find_mountpoint(void) -{ - const char *ret; - - if (tracefs_found) - return (const char *)tracefs_mountpoint; - - ret = find_mountpoint("tracefs", (long) TRACEFS_MAGIC, - tracefs_mountpoint, PATH_MAX + 1, - tracefs_known_mountpoints); - - if (ret) - tracefs_found = true; - - return ret; -} - -/* mount the tracefs somewhere if it's not mounted */ -char *tracefs_mount(const char *mountpoint) -{ - /* see if it's already mounted */ - if (tracefs_find_mountpoint()) - goto out; - - /* if not mounted and no argument */ - if (mountpoint == NULL) { - /* see if environment variable set */ - mountpoint = getenv(PERF_TRACEFS_ENVIRONMENT); - /* if no environment variable, use default */ - if (mountpoint == NULL) - mountpoint = TRACEFS_DEFAULT_PATH; - } - - if (mount(NULL, mountpoint, "tracefs", 0, NULL) < 0) - return NULL; - - /* save the mountpoint */ - tracefs_found = true; - strncpy(tracefs_mountpoint, mountpoint, sizeof(tracefs_mountpoint)); -out: - return tracefs_mountpoint; -} diff --git a/tools/lib/api/fs/tracefs.h b/tools/lib/api/fs/tracefs.h deleted file mode 100644 index da780ac49..000000000 --- a/tools/lib/api/fs/tracefs.h +++ /dev/null @@ -1,21 +0,0 @@ -#ifndef __API_TRACEFS_H__ -#define __API_TRACEFS_H__ - -#include "findfs.h" - -#ifndef TRACEFS_MAGIC -#define TRACEFS_MAGIC 0x74726163 -#endif - -#ifndef PERF_TRACEFS_ENVIRONMENT -#define PERF_TRACEFS_ENVIRONMENT "PERF_TRACEFS_DIR" -#endif - -bool tracefs_configured(void); -const char *tracefs_find_mountpoint(void); -int tracefs_valid_mountpoint(const char *debugfs); -char *tracefs_mount(const char *mountpoint); - -extern char tracefs_mountpoint[]; - -#endif /* __API_DEBUGFS_H__ */ diff --git a/tools/lib/api/fs/tracing_path.c b/tools/lib/api/fs/tracing_path.c new file mode 100644 index 000000000..a26bb5ea8 --- /dev/null +++ b/tools/lib/api/fs/tracing_path.c @@ -0,0 +1,135 @@ +#ifndef _GNU_SOURCE +# define _GNU_SOURCE +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <unistd.h> +#include "fs.h" + +#include "tracing_path.h" + + +char tracing_mnt[PATH_MAX] = "/sys/kernel/debug"; +char tracing_path[PATH_MAX] = "/sys/kernel/debug/tracing"; +char tracing_events_path[PATH_MAX] = "/sys/kernel/debug/tracing/events"; + + +static void __tracing_path_set(const char *tracing, const char *mountpoint) +{ + snprintf(tracing_mnt, sizeof(tracing_mnt), "%s", mountpoint); + snprintf(tracing_path, sizeof(tracing_path), "%s/%s", + mountpoint, tracing); + snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s%s", + mountpoint, tracing, "events"); +} + +static const char *tracing_path_tracefs_mount(void) +{ + const char *mnt; + + mnt = tracefs__mount(); + if (!mnt) + return NULL; + + __tracing_path_set("", mnt); + + return mnt; +} + +static const char *tracing_path_debugfs_mount(void) +{ + const char *mnt; + + mnt = debugfs__mount(); + if (!mnt) + return NULL; + + __tracing_path_set("tracing/", mnt); + + return mnt; +} + +const char *tracing_path_mount(void) +{ + const char *mnt; + + mnt = tracing_path_tracefs_mount(); + if (mnt) + return mnt; + + mnt = tracing_path_debugfs_mount(); + + return mnt; +} + +void tracing_path_set(const char *mntpt) +{ + __tracing_path_set("tracing/", mntpt); +} + +char *get_tracing_file(const char *name) +{ + char *file; + + if (asprintf(&file, "%s/%s", tracing_path, name) < 0) + return NULL; + + return file; +} + +void put_tracing_file(char *file) +{ + free(file); +} + +static int strerror_open(int err, char *buf, size_t size, const char *filename) +{ + char sbuf[128]; + + switch (err) { + case ENOENT: + /* + * We will get here if we can't find the tracepoint, but one of + * debugfs or tracefs is configured, which means you probably + * want some tracepoint which wasn't compiled in your kernel. + * - jirka + */ + if (debugfs__configured() || tracefs__configured()) { + snprintf(buf, size, + "Error:\tFile %s/%s not found.\n" + "Hint:\tPerhaps this kernel misses some CONFIG_ setting to enable this feature?.\n", + tracing_events_path, filename); + break; + } + snprintf(buf, size, "%s", + "Error:\tUnable to find debugfs/tracefs\n" + "Hint:\tWas your kernel compiled with debugfs/tracefs support?\n" + "Hint:\tIs the debugfs/tracefs filesystem mounted?\n" + "Hint:\tTry 'sudo mount -t debugfs nodev /sys/kernel/debug'"); + break; + case EACCES: { + snprintf(buf, size, + "Error:\tNo permissions to read %s/%s\n" + "Hint:\tTry 'sudo mount -o remount,mode=755 %s'\n", + tracing_events_path, filename, tracing_mnt); + } + break; + default: + snprintf(buf, size, "%s", strerror_r(err, sbuf, sizeof(sbuf))); + break; + } + + return 0; +} + +int tracing_path__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name) +{ + char path[PATH_MAX]; + + snprintf(path, PATH_MAX, "%s/%s", sys, name ?: "*"); + + return strerror_open(err, buf, size, path); +} diff --git a/tools/lib/api/fs/tracing_path.h b/tools/lib/api/fs/tracing_path.h new file mode 100644 index 000000000..3f233ac70 --- /dev/null +++ b/tools/lib/api/fs/tracing_path.h @@ -0,0 +1,16 @@ +#ifndef __API_FS_TRACING_PATH_H +#define __API_FS_TRACING_PATH_H + +#include <linux/types.h> + +extern char tracing_path[]; +extern char tracing_events_path[]; + +void tracing_path_set(const char *mountpoint); +const char *tracing_path_mount(void); + +char *get_tracing_file(const char *name); +void put_tracing_file(char *file); + +int tracing_path__strerror_open_tp(int err, char *buf, size_t size, const char *sys, const char *name); +#endif /* __API_FS_TRACING_PATH_H */ diff --git a/tools/lib/bpf/.gitignore b/tools/lib/bpf/.gitignore index 812aeedae..f81e549dd 100644 --- a/tools/lib/bpf/.gitignore +++ b/tools/lib/bpf/.gitignore @@ -1,2 +1,2 @@ libbpf_version.h -FEATURE-DUMP +FEATURE-DUMP.libbpf diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile index f68d23a0b..a3caaf3ea 100644 --- a/tools/lib/bpf/Makefile +++ b/tools/lib/bpf/Makefile @@ -64,8 +64,9 @@ srctree := $(patsubst %/,%,$(dir $(srctree))) #$(info Determined 'srctree' to be $(srctree)) endif -FEATURE_DISPLAY = libelf libelf-getphdrnum libelf-mmap bpf -FEATURE_TESTS = libelf bpf +FEATURE_USER = .libbpf +FEATURE_TESTS = libelf libelf-getphdrnum libelf-mmap bpf +FEATURE_DISPLAY = libelf bpf INCLUDES = -I. -I$(srctree)/tools/include -I$(srctree)/arch/$(ARCH)/include/uapi -I$(srctree)/include/uapi FEATURE_CHECK_CFLAGS-bpf = $(INCLUDES) @@ -122,8 +123,10 @@ endif # the same command line setup. MAKEOVERRIDES= +all: + export srctree OUTPUT CC LD CFLAGS V -build := -f $(srctree)/tools/build/Makefile.build dir=. obj +include $(srctree)/tools/build/Makefile.include BPF_IN := $(OUTPUT)libbpf-in.o LIB_FILE := $(addprefix $(OUTPUT),$(LIB_FILE)) @@ -132,7 +135,7 @@ CMD_TARGETS = $(LIB_FILE) TARGETS = $(CMD_TARGETS) -all: $(VERSION_FILES) all_cmd +all: fixdep $(VERSION_FILES) all_cmd all_cmd: $(CMD_TARGETS) @@ -177,7 +180,7 @@ config-clean: clean: $(call QUIET_CLEAN, libbpf) $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d \ $(RM) LIBBPF-CFLAGS - $(call QUIET_CLEAN, core-gen) $(RM) $(OUTPUT)FEATURE-DUMP + $(call QUIET_CLEAN, core-gen) $(RM) $(OUTPUT)FEATURE-DUMP.libbpf diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index 4252fc22f..e176bad19 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -61,6 +61,60 @@ void libbpf_set_print(libbpf_print_fn_t warn, __pr_debug = debug; } +#define STRERR_BUFSIZE 128 + +#define ERRNO_OFFSET(e) ((e) - __LIBBPF_ERRNO__START) +#define ERRCODE_OFFSET(c) ERRNO_OFFSET(LIBBPF_ERRNO__##c) +#define NR_ERRNO (__LIBBPF_ERRNO__END - __LIBBPF_ERRNO__START) + +static const char *libbpf_strerror_table[NR_ERRNO] = { + [ERRCODE_OFFSET(LIBELF)] = "Something wrong in libelf", + [ERRCODE_OFFSET(FORMAT)] = "BPF object format invalid", + [ERRCODE_OFFSET(KVERSION)] = "'version' section incorrect or lost", + [ERRCODE_OFFSET(ENDIAN)] = "Endian missmatch", + [ERRCODE_OFFSET(INTERNAL)] = "Internal error in libbpf", + [ERRCODE_OFFSET(RELOC)] = "Relocation failed", + [ERRCODE_OFFSET(VERIFY)] = "Kernel verifier blocks program loading", + [ERRCODE_OFFSET(PROG2BIG)] = "Program too big", + [ERRCODE_OFFSET(KVER)] = "Incorrect kernel version", +}; + +int libbpf_strerror(int err, char *buf, size_t size) +{ + if (!buf || !size) + return -1; + + err = err > 0 ? err : -err; + + if (err < __LIBBPF_ERRNO__START) { + int ret; + + ret = strerror_r(err, buf, size); + buf[size - 1] = '\0'; + return ret; + } + + if (err < __LIBBPF_ERRNO__END) { + const char *msg; + + msg = libbpf_strerror_table[ERRNO_OFFSET(err)]; + snprintf(buf, size, "%s", msg); + buf[size - 1] = '\0'; + return 0; + } + + snprintf(buf, size, "Unknown libbpf error %d", err); + buf[size - 1] = '\0'; + return -1; +} + +#define CHECK_ERR(action, err, out) do { \ + err = action; \ + if (err) \ + goto out; \ +} while(0) + + /* Copied from tools/perf/util/util.h */ #ifndef zfree # define zfree(ptr) ({ free(*ptr); *ptr = NULL; }) @@ -258,7 +312,7 @@ static struct bpf_object *bpf_object__new(const char *path, obj = calloc(1, sizeof(struct bpf_object) + strlen(path) + 1); if (!obj) { pr_warning("alloc memory failed for %s\n", path); - return NULL; + return ERR_PTR(-ENOMEM); } strcpy(obj->path, path); @@ -305,7 +359,7 @@ static int bpf_object__elf_init(struct bpf_object *obj) if (obj_elf_valid(obj)) { pr_warning("elf init: internal error\n"); - return -EEXIST; + return -LIBBPF_ERRNO__LIBELF; } if (obj->efile.obj_buf_sz > 0) { @@ -331,14 +385,14 @@ static int bpf_object__elf_init(struct bpf_object *obj) if (!obj->efile.elf) { pr_warning("failed to open %s as ELF file\n", obj->path); - err = -EINVAL; + err = -LIBBPF_ERRNO__LIBELF; goto errout; } if (!gelf_getehdr(obj->efile.elf, &obj->efile.ehdr)) { pr_warning("failed to get EHDR from %s\n", obj->path); - err = -EINVAL; + err = -LIBBPF_ERRNO__FORMAT; goto errout; } ep = &obj->efile.ehdr; @@ -346,7 +400,7 @@ static int bpf_object__elf_init(struct bpf_object *obj) if ((ep->e_type != ET_REL) || (ep->e_machine != 0)) { pr_warning("%s is not an eBPF object file\n", obj->path); - err = -EINVAL; + err = -LIBBPF_ERRNO__FORMAT; goto errout; } @@ -374,14 +428,14 @@ bpf_object__check_endianness(struct bpf_object *obj) goto mismatch; break; default: - return -EINVAL; + return -LIBBPF_ERRNO__ENDIAN; } return 0; mismatch: pr_warning("Error: endianness mismatch.\n"); - return -EINVAL; + return -LIBBPF_ERRNO__ENDIAN; } static int @@ -402,7 +456,7 @@ bpf_object__init_kversion(struct bpf_object *obj, if (size != sizeof(kver)) { pr_warning("invalid kver section in %s\n", obj->path); - return -EINVAL; + return -LIBBPF_ERRNO__FORMAT; } memcpy(&kver, data, sizeof(kver)); obj->kern_version = kver; @@ -444,7 +498,7 @@ static int bpf_object__elf_collect(struct bpf_object *obj) if (!elf_rawdata(elf_getscn(elf, ep->e_shstrndx), NULL)) { pr_warning("failed to get e_shstrndx from %s\n", obj->path); - return -EINVAL; + return -LIBBPF_ERRNO__FORMAT; } while ((scn = elf_nextscn(elf, scn)) != NULL) { @@ -456,7 +510,7 @@ static int bpf_object__elf_collect(struct bpf_object *obj) if (gelf_getshdr(scn, &sh) != &sh) { pr_warning("failed to get section header from %s\n", obj->path); - err = -EINVAL; + err = -LIBBPF_ERRNO__FORMAT; goto out; } @@ -464,7 +518,7 @@ static int bpf_object__elf_collect(struct bpf_object *obj) if (!name) { pr_warning("failed to get section name from %s\n", obj->path); - err = -EINVAL; + err = -LIBBPF_ERRNO__FORMAT; goto out; } @@ -472,7 +526,7 @@ static int bpf_object__elf_collect(struct bpf_object *obj) if (!data) { pr_warning("failed to get section data from %s(%s)\n", name, obj->path); - err = -EINVAL; + err = -LIBBPF_ERRNO__FORMAT; goto out; } pr_debug("section %s, size %ld, link %d, flags %lx, type=%d\n", @@ -495,7 +549,7 @@ static int bpf_object__elf_collect(struct bpf_object *obj) if (obj->efile.symbols) { pr_warning("bpf: multiple SYMTAB in %s\n", obj->path); - err = -EEXIST; + err = -LIBBPF_ERRNO__FORMAT; } else obj->efile.symbols = data; } else if ((sh.sh_type == SHT_PROGBITS) && @@ -504,7 +558,8 @@ static int bpf_object__elf_collect(struct bpf_object *obj) err = bpf_object__add_program(obj, data->d_buf, data->d_size, name, idx); if (err) { - char errmsg[128]; + char errmsg[STRERR_BUFSIZE]; + strerror_r(-err, errmsg, sizeof(errmsg)); pr_warning("failed to alloc program %s (%s): %s", name, obj->path, errmsg); @@ -576,7 +631,7 @@ bpf_program__collect_reloc(struct bpf_program *prog, if (!gelf_getrel(data, i, &rel)) { pr_warning("relocation: failed to get %d reloc\n", i); - return -EINVAL; + return -LIBBPF_ERRNO__FORMAT; } insn_idx = rel.r_offset / sizeof(struct bpf_insn); @@ -587,20 +642,20 @@ bpf_program__collect_reloc(struct bpf_program *prog, &sym)) { pr_warning("relocation: symbol %"PRIx64" not found\n", GELF_R_SYM(rel.r_info)); - return -EINVAL; + return -LIBBPF_ERRNO__FORMAT; } if (insns[insn_idx].code != (BPF_LD | BPF_IMM | BPF_DW)) { pr_warning("bpf: relocation: invalid relo for insns[%d].code 0x%x\n", insn_idx, insns[insn_idx].code); - return -EINVAL; + return -LIBBPF_ERRNO__RELOC; } map_idx = sym.st_value / sizeof(struct bpf_map_def); if (map_idx >= nr_maps) { pr_warning("bpf relocation: map_idx %d large than %d\n", (int)map_idx, (int)nr_maps - 1); - return -EINVAL; + return -LIBBPF_ERRNO__RELOC; } prog->reloc_desc[i].insn_idx = insn_idx; @@ -683,7 +738,7 @@ bpf_program__relocate(struct bpf_program *prog, int *map_fds) if (insn_idx >= (int)prog->insns_cnt) { pr_warning("relocation out of range: '%s'\n", prog->section_name); - return -ERANGE; + return -LIBBPF_ERRNO__RELOC; } insns[insn_idx].src_reg = BPF_PSEUDO_MAP_FD; insns[insn_idx].imm = map_fds[map_idx]; @@ -721,7 +776,7 @@ static int bpf_object__collect_reloc(struct bpf_object *obj) if (!obj_elf_valid(obj)) { pr_warning("Internal error: elf object is closed\n"); - return -EINVAL; + return -LIBBPF_ERRNO__INTERNAL; } for (i = 0; i < obj->efile.nr_reloc; i++) { @@ -734,21 +789,21 @@ static int bpf_object__collect_reloc(struct bpf_object *obj) if (shdr->sh_type != SHT_REL) { pr_warning("internal error at %d\n", __LINE__); - return -EINVAL; + return -LIBBPF_ERRNO__INTERNAL; } prog = bpf_object__find_prog_by_idx(obj, idx); if (!prog) { pr_warning("relocation failed: no %d section\n", idx); - return -ENOENT; + return -LIBBPF_ERRNO__RELOC; } err = bpf_program__collect_reloc(prog, nr_maps, shdr, data, obj->efile.symbols); if (err) - return -EINVAL; + return err; } return 0; } @@ -777,13 +832,23 @@ load_program(struct bpf_insn *insns, int insns_cnt, goto out; } - ret = -EINVAL; + ret = -LIBBPF_ERRNO__LOAD; pr_warning("load bpf program failed: %s\n", strerror(errno)); - if (log_buf) { + if (log_buf && log_buf[0] != '\0') { + ret = -LIBBPF_ERRNO__VERIFY; pr_warning("-- BEGIN DUMP LOG ---\n"); pr_warning("\n%s\n", log_buf); pr_warning("-- END LOG --\n"); + } else { + if (insns_cnt >= BPF_MAXINSNS) { + pr_warning("Program too large (%d insns), at most %d insns\n", + insns_cnt, BPF_MAXINSNS); + ret = -LIBBPF_ERRNO__PROG2BIG; + } else if (log_buf) { + pr_warning("log buffer is empty\n"); + ret = -LIBBPF_ERRNO__KVER; + } } out: @@ -831,7 +896,7 @@ static int bpf_object__validate(struct bpf_object *obj) if (obj->kern_version == 0) { pr_warning("%s doesn't provide kernel version\n", obj->path); - return -EINVAL; + return -LIBBPF_ERRNO__KVERSION; } return 0; } @@ -840,32 +905,28 @@ static struct bpf_object * __bpf_object__open(const char *path, void *obj_buf, size_t obj_buf_sz) { struct bpf_object *obj; + int err; if (elf_version(EV_CURRENT) == EV_NONE) { pr_warning("failed to init libelf for %s\n", path); - return NULL; + return ERR_PTR(-LIBBPF_ERRNO__LIBELF); } obj = bpf_object__new(path, obj_buf, obj_buf_sz); - if (!obj) - return NULL; + if (IS_ERR(obj)) + return obj; - if (bpf_object__elf_init(obj)) - goto out; - if (bpf_object__check_endianness(obj)) - goto out; - if (bpf_object__elf_collect(obj)) - goto out; - if (bpf_object__collect_reloc(obj)) - goto out; - if (bpf_object__validate(obj)) - goto out; + CHECK_ERR(bpf_object__elf_init(obj), err, out); + CHECK_ERR(bpf_object__check_endianness(obj), err, out); + CHECK_ERR(bpf_object__elf_collect(obj), err, out); + CHECK_ERR(bpf_object__collect_reloc(obj), err, out); + CHECK_ERR(bpf_object__validate(obj), err, out); bpf_object__elf_finish(obj); return obj; out: bpf_object__close(obj); - return NULL; + return ERR_PTR(err); } struct bpf_object *bpf_object__open(const char *path) @@ -922,6 +983,8 @@ int bpf_object__unload(struct bpf_object *obj) int bpf_object__load(struct bpf_object *obj) { + int err; + if (!obj) return -EINVAL; @@ -931,18 +994,16 @@ int bpf_object__load(struct bpf_object *obj) } obj->loaded = true; - if (bpf_object__create_maps(obj)) - goto out; - if (bpf_object__relocate(obj)) - goto out; - if (bpf_object__load_progs(obj)) - goto out; + + CHECK_ERR(bpf_object__create_maps(obj), err, out); + CHECK_ERR(bpf_object__relocate(obj), err, out); + CHECK_ERR(bpf_object__load_progs(obj), err, out); return 0; out: bpf_object__unload(obj); pr_warning("failed to load object '%s'\n", obj->path); - return -EINVAL; + return err; } void bpf_object__close(struct bpf_object *obj) @@ -990,10 +1051,18 @@ const char * bpf_object__get_name(struct bpf_object *obj) { if (!obj) - return NULL; + return ERR_PTR(-EINVAL); return obj->path; } +unsigned int +bpf_object__get_kversion(struct bpf_object *obj) +{ + if (!obj) + return 0; + return obj->kern_version; +} + struct bpf_program * bpf_program__next(struct bpf_program *prev, struct bpf_object *obj) { @@ -1034,16 +1103,16 @@ int bpf_program__get_private(struct bpf_program *prog, void **ppriv) return 0; } -const char *bpf_program__title(struct bpf_program *prog, bool dup) +const char *bpf_program__title(struct bpf_program *prog, bool needs_copy) { const char *title; title = prog->section_name; - if (dup) { + if (needs_copy) { title = strdup(title); if (!title) { pr_warning("failed to strdup program title\n"); - return NULL; + return ERR_PTR(-ENOMEM); } } diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index f16170c95..c9a9aef28 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -10,6 +10,26 @@ #include <stdio.h> #include <stdbool.h> +#include <linux/err.h> + +enum libbpf_errno { + __LIBBPF_ERRNO__START = 4000, + + /* Something wrong in libelf */ + LIBBPF_ERRNO__LIBELF = __LIBBPF_ERRNO__START, + LIBBPF_ERRNO__FORMAT, /* BPF object format invalid */ + LIBBPF_ERRNO__KVERSION, /* Incorrect or no 'version' section */ + LIBBPF_ERRNO__ENDIAN, /* Endian missmatch */ + LIBBPF_ERRNO__INTERNAL, /* Internal error in libbpf */ + LIBBPF_ERRNO__RELOC, /* Relocation failed */ + LIBBPF_ERRNO__LOAD, /* Load program failure for unknown reason */ + LIBBPF_ERRNO__VERIFY, /* Kernel verifier blocks program loading */ + LIBBPF_ERRNO__PROG2BIG, /* Program too big */ + LIBBPF_ERRNO__KVER, /* Incorrect kernel version */ + __LIBBPF_ERRNO__END, +}; + +int libbpf_strerror(int err, char *buf, size_t size); /* * In include/linux/compiler-gcc.h, __printf is defined. However @@ -36,6 +56,7 @@ void bpf_object__close(struct bpf_object *object); int bpf_object__load(struct bpf_object *obj); int bpf_object__unload(struct bpf_object *obj); const char *bpf_object__get_name(struct bpf_object *obj); +unsigned int bpf_object__get_kversion(struct bpf_object *obj); struct bpf_object *bpf_object__next(struct bpf_object *prev); #define bpf_object__for_each_safe(pos, tmp) \ @@ -63,7 +84,7 @@ int bpf_program__set_private(struct bpf_program *prog, void *priv, int bpf_program__get_private(struct bpf_program *prog, void **ppriv); -const char *bpf_program__title(struct bpf_program *prog, bool dup); +const char *bpf_program__title(struct bpf_program *prog, bool needs_copy); int bpf_program__fd(struct bpf_program *prog); diff --git a/tools/lib/lockdep/Makefile b/tools/lib/lockdep/Makefile index 18ffccf00..7e319afac 100644 --- a/tools/lib/lockdep/Makefile +++ b/tools/lib/lockdep/Makefile @@ -93,8 +93,10 @@ else print_install = echo ' INSTALL '$1' to $(DESTDIR_SQ)$2'; endif +all: + export srctree OUTPUT CC LD CFLAGS V -build := -f $(srctree)/tools/build/Makefile.build dir=. obj +include $(srctree)/tools/build/Makefile.include do_compile_shared_library = \ ($(print_shared_lib_compile) \ @@ -109,7 +111,7 @@ CMD_TARGETS = $(LIB_FILE) TARGETS = $(CMD_TARGETS) -all: all_cmd +all: fixdep all_cmd all_cmd: $(CMD_TARGETS) diff --git a/tools/lib/lockdep/common.c b/tools/lib/lockdep/common.c index 8ef602f18..9be663340 100644 --- a/tools/lib/lockdep/common.c +++ b/tools/lib/lockdep/common.c @@ -18,7 +18,7 @@ __attribute__((constructor)) static void liblockdep_init(void) __attribute__((destructor)) static void liblockdep_exit(void) { - debug_check_no_locks_held(¤t_obj); + debug_check_no_locks_held(); } struct task_struct *__curr(void) diff --git a/tools/lib/lockdep/include/liblockdep/common.h b/tools/lib/lockdep/include/liblockdep/common.h index 0bda63002..a60c14b96 100644 --- a/tools/lib/lockdep/include/liblockdep/common.h +++ b/tools/lib/lockdep/include/liblockdep/common.h @@ -43,6 +43,8 @@ void lock_acquire(struct lockdep_map *lock, unsigned int subclass, struct lockdep_map *nest_lock, unsigned long ip); void lock_release(struct lockdep_map *lock, int nested, unsigned long ip); +extern void debug_check_no_locks_freed(const void *from, unsigned long len); +extern void lockdep_init(void); #define STATIC_LOCKDEP_MAP_INIT(_name, _key) \ { .name = (_name), .key = (void *)(_key), } diff --git a/tools/lib/lockdep/uinclude/linux/compiler.h b/tools/lib/lockdep/uinclude/linux/compiler.h index 7ac838a1f..6386dc318 100644 --- a/tools/lib/lockdep/uinclude/linux/compiler.h +++ b/tools/lib/lockdep/uinclude/linux/compiler.h @@ -3,5 +3,7 @@ #define __used __attribute__((__unused__)) #define unlikely +#define WRITE_ONCE(x, val) x=(val) +#define RCU_INIT_POINTER(p, v) p=(v) #endif diff --git a/tools/lib/lockdep/uinclude/linux/lockdep.h b/tools/lib/lockdep/uinclude/linux/lockdep.h index c1552c285..c808c7d02 100644 --- a/tools/lib/lockdep/uinclude/linux/lockdep.h +++ b/tools/lib/lockdep/uinclude/linux/lockdep.h @@ -6,7 +6,7 @@ #include <string.h> #include <limits.h> #include <linux/utsname.h> - +#include <linux/compiler.h> #define MAX_LOCK_DEPTH 2000UL @@ -54,5 +54,6 @@ static struct new_utsname *init_utsname(void) #define static_obj(x) 1 #define debug_show_all_locks() +extern void debug_check_no_locks_held(void); #endif diff --git a/tools/lib/symbol/kallsyms.c b/tools/lib/symbol/kallsyms.c index 18bc271a4..5e431077f 100644 --- a/tools/lib/symbol/kallsyms.c +++ b/tools/lib/symbol/kallsyms.c @@ -2,6 +2,12 @@ #include <stdio.h> #include <stdlib.h> +u8 kallsyms2elf_type(char type) +{ + type = tolower(type); + return (type == 't' || type == 'w') ? STT_FUNC : STT_OBJECT; +} + int kallsyms__parse(const char *filename, void *arg, int (*process_symbol)(void *arg, const char *name, char type, u64 start)) diff --git a/tools/lib/symbol/kallsyms.h b/tools/lib/symbol/kallsyms.h index 6084f5e18..4071316a7 100644 --- a/tools/lib/symbol/kallsyms.h +++ b/tools/lib/symbol/kallsyms.h @@ -9,7 +9,7 @@ #define KSYM_NAME_LEN 256 #endif -static inline u8 kallsyms2elf_type(char type) +static inline u8 kallsyms2elf_binding(char type) { if (type == 'W') return STB_WEAK; @@ -17,6 +17,8 @@ static inline u8 kallsyms2elf_type(char type) return isupper(type) ? STB_GLOBAL : STB_LOCAL; } +u8 kallsyms2elf_type(char type); + int kallsyms__parse(const char *filename, void *arg, int (*process_symbol)(void *arg, const char *name, char type, u64 start)); diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index cf42b0904..2a912df67 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -848,6 +848,7 @@ static void free_arg(struct print_arg *arg) free(arg->bitmask.bitmask); break; case PRINT_DYNAMIC_ARRAY: + case PRINT_DYNAMIC_ARRAY_LEN: free(arg->dynarray.index); break; case PRINT_OP: @@ -2729,6 +2730,42 @@ process_dynamic_array(struct event_format *event, struct print_arg *arg, char ** } static enum event_type +process_dynamic_array_len(struct event_format *event, struct print_arg *arg, + char **tok) +{ + struct format_field *field; + enum event_type type; + char *token; + + if (read_expect_type(EVENT_ITEM, &token) < 0) + goto out_free; + + arg->type = PRINT_DYNAMIC_ARRAY_LEN; + + /* Find the field */ + field = pevent_find_field(event, token); + if (!field) + goto out_free; + + arg->dynarray.field = field; + arg->dynarray.index = 0; + + if (read_expected(EVENT_DELIM, ")") < 0) + goto out_err; + + type = read_token(&token); + *tok = token; + + return type; + + out_free: + free_token(token); + out_err: + *tok = NULL; + return EVENT_ERROR; +} + +static enum event_type process_paren(struct event_format *event, struct print_arg *arg, char **tok) { struct print_arg *item_arg; @@ -2975,6 +3012,10 @@ process_function(struct event_format *event, struct print_arg *arg, free_token(token); return process_dynamic_array(event, arg, tok); } + if (strcmp(token, "__get_dynamic_array_len") == 0) { + free_token(token); + return process_dynamic_array_len(event, arg, tok); + } func = find_func_handler(event->pevent, token); if (func) { @@ -3655,14 +3696,25 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg goto out_warning_op; } break; + case PRINT_DYNAMIC_ARRAY_LEN: + offset = pevent_read_number(pevent, + data + arg->dynarray.field->offset, + arg->dynarray.field->size); + /* + * The total allocated length of the dynamic array is + * stored in the top half of the field, and the offset + * is in the bottom half of the 32 bit field. + */ + val = (unsigned long long)(offset >> 16); + break; case PRINT_DYNAMIC_ARRAY: /* Without [], we pass the address to the dynamic data */ offset = pevent_read_number(pevent, data + arg->dynarray.field->offset, arg->dynarray.field->size); /* - * The actual length of the dynamic array is stored - * in the top half of the field, and the offset + * The total allocated length of the dynamic array is + * stored in the top half of the field, and the offset * is in the bottom half of the 32 bit field. */ offset &= 0xffff; @@ -4853,8 +4905,8 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event else ls = 2; - if (*(ptr+1) == 'F' || - *(ptr+1) == 'f') { + if (*(ptr+1) == 'F' || *(ptr+1) == 'f' || + *(ptr+1) == 'S' || *(ptr+1) == 's') { ptr++; show_func = *ptr; } else if (*(ptr+1) == 'M' || *(ptr+1) == 'm') { diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h index 204befb05..6fc83c7ed 100644 --- a/tools/lib/traceevent/event-parse.h +++ b/tools/lib/traceevent/event-parse.h @@ -294,6 +294,7 @@ enum print_arg_type { PRINT_OP, PRINT_FUNC, PRINT_BITMASK, + PRINT_DYNAMIC_ARRAY_LEN, }; struct print_arg { diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c index 88fe83dff..18536f756 100644 --- a/tools/lib/traceevent/plugin_kvm.c +++ b/tools/lib/traceevent/plugin_kvm.c @@ -124,7 +124,10 @@ static const char *disassemble(unsigned char *insn, int len, uint64_t rip, _ER(WBINVD, 54) \ _ER(XSETBV, 55) \ _ER(APIC_WRITE, 56) \ - _ER(INVPCID, 58) + _ER(INVPCID, 58) \ + _ER(PML_FULL, 62) \ + _ER(XSAVES, 63) \ + _ER(XRSTORS, 64) #define SVM_EXIT_REASONS \ _ER(EXIT_READ_CR0, 0x000) \ @@ -352,15 +355,18 @@ static int kvm_nested_vmexit_handler(struct trace_seq *s, struct pevent_record * union kvm_mmu_page_role { unsigned word; struct { - unsigned glevels:4; unsigned level:4; + unsigned cr4_pae:1; unsigned quadrant:2; - unsigned pad_for_nice_hex_output:6; unsigned direct:1; unsigned access:3; unsigned invalid:1; - unsigned cr4_pge:1; unsigned nxe:1; + unsigned cr0_wp:1; + unsigned smep_and_not_wp:1; + unsigned smap_and_not_wp:1; + unsigned pad_for_nice_hex_output:8; + unsigned smm:8; }; }; @@ -385,15 +391,18 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct pevent_record *record, if (pevent_is_file_bigendian(event->pevent) == pevent_is_host_bigendian(event->pevent)) { - trace_seq_printf(s, "%u/%u q%u%s %s%s %spge %snxe", + trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s", role.level, - role.glevels, role.quadrant, role.direct ? " direct" : "", access_str[role.access], role.invalid ? " invalid" : "", - role.cr4_pge ? "" : "!", - role.nxe ? "" : "!"); + role.cr4_pae ? "" : "!", + role.nxe ? "" : "!", + role.cr0_wp ? "" : "!", + role.smep_and_not_wp ? " smep" : "", + role.smap_and_not_wp ? " smap" : "", + role.smm ? " smm" : ""); } else trace_seq_printf(s, "WORD: %08x", role.word); diff --git a/tools/net/bpf_jit_disasm.c b/tools/net/bpf_jit_disasm.c index 2cd3d4c99..5b3241340 100644 --- a/tools/net/bpf_jit_disasm.c +++ b/tools/net/bpf_jit_disasm.c @@ -156,8 +156,8 @@ static void put_log_buff(char *buff) free(buff); } -static int get_last_jit_image(char *haystack, size_t hlen, - uint8_t *image, size_t ilen) +static unsigned int get_last_jit_image(char *haystack, size_t hlen, + uint8_t *image, size_t ilen) { char *ptr, *pptr, *tmp; off_t off = 0; diff --git a/tools/perf/Documentation/intel-pt.txt b/tools/perf/Documentation/intel-pt.txt index c94c9de31..be764f9ec 100644 --- a/tools/perf/Documentation/intel-pt.txt +++ b/tools/perf/Documentation/intel-pt.txt @@ -671,6 +671,7 @@ The letters are: e synthesize tracing error events d create a debug log g synthesize a call chain (use with i or x) + l synthesize last branch entries (use with i or x) "Instructions" events look like they were recorded by "perf record -e instructions". @@ -707,12 +708,26 @@ on the sample is *not* adjusted and reflects the last known value of TSC. For Intel PT, the default period is 100us. +Setting it to a zero period means "as often as possible". + +In the case of Intel PT that is the same as a period of 1 and a unit of +'instructions' (i.e. --itrace=i1i). + Also the call chain size (default 16, max. 1024) for instructions or transactions events can be specified. e.g. --itrace=ig32 --itrace=xg32 +Also the number of last branch entries (default 64, max. 1024) for instructions or +transactions events can be specified. e.g. + + --itrace=il10 + --itrace=xl10 + +Note that last branch entries are cleared for each sample, so there is no overlap +from one sample to the next. + To disable trace decoding entirely, use the option --no-itrace. @@ -749,3 +764,32 @@ perf inject also accepts the --itrace option in which case tracing data is removed and replaced with the synthesized events. e.g. perf inject --itrace -i perf.data -o perf.data.new + +Below is an example of using Intel PT with autofdo. It requires autofdo +(https://github.com/google/autofdo) and gcc version 5. The bubble +sort example is from the AutoFDO tutorial (https://gcc.gnu.org/wiki/AutoFDO/Tutorial) +amended to take the number of elements as a parameter. + + $ gcc-5 -O3 sort.c -o sort_optimized + $ ./sort_optimized 30000 + Bubble sorting array of 30000 elements + 2254 ms + + $ cat ~/.perfconfig + [intel-pt] + mispred-all + + $ perf record -e intel_pt//u ./sort 3000 + Bubble sorting array of 3000 elements + 58 ms + [ perf record: Woken up 2 times to write data ] + [ perf record: Captured and wrote 3.939 MB perf.data ] + $ perf inject -i perf.data -o inj --itrace=i100usle --strip + $ ./create_gcov --binary=./sort --profile=inj --gcov=sort.gcov -gcov_version=1 + $ gcc-5 -O3 -fauto-profile=sort.gcov sort.c -o sort_autofdo + $ ./sort_autofdo 30000 + Bubble sorting array of 30000 elements + 2155 ms + +Note there is currently no advantage to using Intel PT instead of LBR, but +that may change in the future if greater use is made of the data. diff --git a/tools/perf/Documentation/itrace.txt b/tools/perf/Documentation/itrace.txt index 2ff946677..65453f4c7 100644 --- a/tools/perf/Documentation/itrace.txt +++ b/tools/perf/Documentation/itrace.txt @@ -6,6 +6,7 @@ e synthesize error events d create a debug log g synthesize a call chain (use with i or x) + l synthesize last branch entries (use with i or x) The default is all events i.e. the same as --itrace=ibxe @@ -20,3 +21,6 @@ Also the call chain size (default 16, max. 1024) for instructions or transactions events can be specified. + + Also the number of last branch entries (default 64, max. 1024) for + instructions or transactions events can be specified. diff --git a/tools/perf/Documentation/perf-bench.txt b/tools/perf/Documentation/perf-bench.txt index ab632d9fb..34750fc32 100644 --- a/tools/perf/Documentation/perf-bench.txt +++ b/tools/perf/Documentation/perf-bench.txt @@ -82,7 +82,7 @@ Be multi thread instead of multi process Specify number of groups -l:: ---loop=:: +--nr_loops=:: Specify number of loops Example of *messaging* @@ -139,64 +139,48 @@ Suite for evaluating performance of simple memory copy in various ways. Options of *memcpy* ^^^^^^^^^^^^^^^^^^^ -l:: ---length:: -Specify length of memory to copy (default: 1MB). +--size:: +Specify size of memory to copy (default: 1MB). Available units are B, KB, MB, GB and TB (case insensitive). --r:: ---routine:: -Specify routine to copy (default: default). -Available routines are depend on the architecture. +-f:: +--function:: +Specify function to copy (default: default). +Available functions are depend on the architecture. On x86-64, x86-64-unrolled, x86-64-movsq and x86-64-movsb are supported. --i:: ---iterations:: +-l:: +--nr_loops:: Repeat memcpy invocation this number of times. -c:: ---cycle:: +--cycles:: Use perf's cpu-cycles event instead of gettimeofday syscall. --o:: ---only-prefault:: -Show only the result with page faults before memcpy. - --n:: ---no-prefault:: -Show only the result without page faults before memcpy. - *memset*:: Suite for evaluating performance of simple memory set in various ways. Options of *memset* ^^^^^^^^^^^^^^^^^^^ -l:: ---length:: -Specify length of memory to set (default: 1MB). +--size:: +Specify size of memory to set (default: 1MB). Available units are B, KB, MB, GB and TB (case insensitive). --r:: ---routine:: -Specify routine to set (default: default). -Available routines are depend on the architecture. +-f:: +--function:: +Specify function to set (default: default). +Available functions are depend on the architecture. On x86-64, x86-64-unrolled, x86-64-stosq and x86-64-stosb are supported. --i:: ---iterations:: +-l:: +--nr_loops:: Repeat memset invocation this number of times. -c:: ---cycle:: +--cycles:: Use perf's cpu-cycles event instead of gettimeofday syscall. --o:: ---only-prefault:: -Show only the result with page faults before memset. - --n:: ---no-prefault:: -Show only the result without page faults before memset. - SUITES FOR 'numa' ~~~~~~~~~~~~~~~~~ *mem*:: diff --git a/tools/perf/Documentation/perf-inject.txt b/tools/perf/Documentation/perf-inject.txt index 0c721c3e3..0b1cedeef 100644 --- a/tools/perf/Documentation/perf-inject.txt +++ b/tools/perf/Documentation/perf-inject.txt @@ -50,6 +50,9 @@ OPTIONS include::itrace.txt[] +--strip:: + Use with --itrace to strip out non-synthesized events. + SEE ALSO -------- linkperf:perf-record[1], linkperf:perf-report[1], linkperf:perf-archive[1] diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt index bada8933f..79483f40e 100644 --- a/tools/perf/Documentation/perf-list.txt +++ b/tools/perf/Documentation/perf-list.txt @@ -30,6 +30,7 @@ counted. The following modifiers exist: G - guest counting (in KVM guests) H - host counting (not in KVM guests) p - precise level + P - use maximum detected precise level S - read sample value (PERF_SAMPLE_READ) D - pin the event to the PMU @@ -125,6 +126,8 @@ To limit the list use: . If none of the above is matched, it will apply the supplied glob to all events, printing the ones that match. +. As a last resort, it will do a substring search in all event names. + One or more types can be used at the same time, listing the events for the types specified. diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index 2e9ce77b5..e630a7d2c 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -144,7 +144,7 @@ OPTIONS --call-graph:: Setup and enable call-graph (stack chain/backtrace) recording, - implies -g. + implies -g. Default is "fp". Allows specifying "fp" (frame pointer) or "dwarf" (DWARF's CFI - Call Frame Information) or "lbr" @@ -154,13 +154,18 @@ OPTIONS In some systems, where binaries are build with gcc --fomit-frame-pointer, using the "fp" method will produce bogus call graphs, using "dwarf", if available (perf tools linked to - the libunwind library) should be used instead. + the libunwind or libdw library) should be used instead. Using the "lbr" method doesn't require any compiler options. It will produce call graphs from the hardware LBR registers. The main limition is that it is only available on new Intel platforms, such as Haswell. It can only get user call chain. It doesn't work with branch stack sampling at the same time. + When "dwarf" recording is used, perf also records (user) stack dump + when sampled. Default size of the stack dump is 8192 (bytes). + User can change the size by passing the size after comma like + "--call-graph dwarf,4096". + -q:: --quiet:: Don't print any message, useful for scripting. @@ -236,6 +241,7 @@ following filters are defined: - any_call: any function call or system call - any_ret: any function return or system call return - ind_call: any indirect branch + - call: direct calls, including far (to/from kernel) calls - u: only when the branch target is at the user level - k: only when the branch target is in the kernel - hv: only when the target is at the hypervisor level @@ -308,6 +314,12 @@ This option sets the time out limit. The default value is 500 ms. Record context switch events i.e. events of type PERF_RECORD_SWITCH or PERF_RECORD_SWITCH_CPU_WIDE. +--clang-path:: +Path to clang binary to use for compiling BPF scriptlets. + +--clang-opt:: +Options passed to clang when compiling BPF scriptlets. + SEE ALSO -------- linkperf:perf-stat[1], linkperf:perf-list[1] diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt index 9c7981bfd..5ce8da1e1 100644 --- a/tools/perf/Documentation/perf-report.txt +++ b/tools/perf/Documentation/perf-report.txt @@ -29,7 +29,7 @@ OPTIONS --show-nr-samples:: Show the number of samples for each symbol ---showcpuutilization:: +--show-cpu-utilization:: Show sample percentage for different cpu modes. -T:: @@ -68,7 +68,7 @@ OPTIONS --sort=:: Sort histogram entries by given key(s) - multiple keys can be specified in CSV format. Following sort keys are available: - pid, comm, dso, symbol, parent, cpu, srcline, weight, local_weight. + pid, comm, dso, symbol, parent, cpu, socket, srcline, weight, local_weight. Each key has following meaning: @@ -79,6 +79,7 @@ OPTIONS - parent: name of function matched to the parent regex filter. Unmatched entries are displayed as "[other]". - cpu: cpu number the task ran at the time of sample + - socket: processor socket number the task ran at the time of sample - srcline: filename and line number executed at the time of sample. The DWARF debugging info must be provided. - srcfile: file name of the source file of the same. Requires dwarf @@ -168,30 +169,40 @@ OPTIONS --dump-raw-trace:: Dump raw trace in ASCII. --g [type,min[,limit],order[,key][,branch]]:: ---call-graph:: - Display call chains using type, min percent threshold, optional print - limit and order. - type can be either: +-g:: +--call-graph=<print_type,threshold[,print_limit],order,sort_key,branch>:: + Display call chains using type, min percent threshold, print limit, + call order, sort key and branch. Note that ordering of parameters is not + fixed so any parement can be given in an arbitraty order. One exception + is the print_limit which should be preceded by threshold. + + print_type can be either: - flat: single column, linear exposure of call chains. - - graph: use a graph tree, displaying absolute overhead rates. + - graph: use a graph tree, displaying absolute overhead rates. (default) - fractal: like graph, but displays relative rates. Each branch of - the tree is considered as a new profiled object. + + the tree is considered as a new profiled object. + - none: disable call chain display. + + threshold is a percentage value which specifies a minimum percent to be + included in the output call graph. Default is 0.5 (%). + + print_limit is only applied when stdio interface is used. It's to limit + number of call graph entries in a single hist entry. Note that it needs + to be given after threshold (but not necessarily consecutive). + Default is 0 (unlimited). order can be either: - callee: callee based call graph. - caller: inverted caller based call graph. + Default is 'caller' when --children is used, otherwise 'callee'. - key can be: - - function: compare on functions + sort_key can be: + - function: compare on functions (default) - address: compare on individual code addresses branch can be: - - branch: include last branch information in callgraph - when available. Usually more convenient to use --branch-history - for this. - - Default: fractal,0.5,callee,function. + - branch: include last branch information in callgraph when available. + Usually more convenient to use --branch-history for this. --children:: Accumulate callchain of children to parent entry so that then can @@ -204,6 +215,8 @@ OPTIONS beyond the specified depth will be ignored. This is a trade-off between information loss and faster processing especially for workloads that can have a very long callchain stack. + Note that when using the --itrace option the synthesized callchain size + will override this value if the synthesized callchain size is bigger. Default: 127 @@ -349,6 +362,9 @@ include::itrace.txt[] This option extends the perf report to show reference callgraphs, which collected by reference event, in no callgraph event. +--socket-filter:: + Only report the samples on the processor socket that match with this filter + include::callchain-overhead-calculation.txt[] SEE ALSO diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index dc3ec783b..382ddfb45 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -112,11 +112,11 @@ OPTIONS --debug-mode:: Do various checks like samples ordering and lost events. --f:: +-F:: --fields:: Comma separated list of fields to print. Options are: comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr, symoff, - srcline, period, iregs, flags. + srcline, period, iregs, brstack, brstacksym, flags. Field list can be prepended with the type, trace, sw or hw, to indicate to which event type the field list applies. e.g., -f sw:comm,tid,time,ip,sym and -f trace:time,cpu,trace @@ -175,6 +175,16 @@ OPTIONS Finally, a user may not set fields to none for all event types. i.e., -f "" is not allowed. + The brstack output includes branch related information with raw addresses using the + /v/v/v/v/ syntax in the following order: + FROM: branch source instruction + TO : branch target instruction + M/P/-: M=branch target mispredicted or branch direction was mispredicted, P=target predicted or direction predicted, -=not supported + X/- : X=branch inside a transactional region, -=not in transaction region or not supported + A/- : A=TSX abort entry, -=not aborted region or not supported + + The brstacksym is identical to brstack, except that the FROM and TO addresses are printed in a symbolic form if possible. + -k:: --vmlinux=<file>:: vmlinux pathname @@ -249,6 +259,9 @@ include::itrace.txt[] --full-source-path:: Show the full path for source files for srcline output. +--ns:: + Use 9 decimal places when displaying time (i.e. show the nanoseconds) + SEE ALSO -------- linkperf:perf-record[1], linkperf:perf-script-perl[1], diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt index 47469abdc..4e074a660 100644 --- a/tools/perf/Documentation/perf-stat.txt +++ b/tools/perf/Documentation/perf-stat.txt @@ -128,8 +128,9 @@ perf stat --repeat 10 --null --sync --pre 'make -s O=defconfig-build/clean' -- m -I msecs:: --interval-print msecs:: - Print count deltas every N milliseconds (minimum: 100ms) - example: perf stat -I 1000 -e cycles -a sleep 5 +Print count deltas every N milliseconds (minimum: 10ms) +The overhead percentage could be high in some cases, for instance with small, sub 100ms intervals. Use with caution. + example: 'perf stat -I 1000 -e cycles -a sleep 5' --per-socket:: Aggregate counts per processor socket for system-wide mode measurements. This diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt index f6a23eb29..556cec09b 100644 --- a/tools/perf/Documentation/perf-top.txt +++ b/tools/perf/Documentation/perf-top.txt @@ -160,9 +160,10 @@ Default is to monitor all CPUS. -g:: Enables call-graph (stack chain/backtrace) recording. ---call-graph:: +--call-graph [mode,type,min[,limit],order[,key][,branch]]:: Setup and enable call-graph (stack chain/backtrace) recording, - implies -g. + implies -g. See `--call-graph` section in perf-record and + perf-report man pages for details. --children:: Accumulate callchain of children to parent entry so that then can diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt index 7ea078658..13293de88 100644 --- a/tools/perf/Documentation/perf-trace.txt +++ b/tools/perf/Documentation/perf-trace.txt @@ -62,7 +62,6 @@ OPTIONS --verbose=:: Verbosity level. --i:: --no-inherit:: Child tasks do not inherit counters. diff --git a/tools/perf/Documentation/perf.txt b/tools/perf/Documentation/perf.txt index 2b1317763..864e37597 100644 --- a/tools/perf/Documentation/perf.txt +++ b/tools/perf/Documentation/perf.txt @@ -27,6 +27,14 @@ OPTIONS Setup buildid cache directory. It has higher priority than buildid.dir config file option. +-v:: +--version:: + Display perf version. + +-h:: +--help:: + Run perf help command. + DESCRIPTION ----------- Performance counters for Linux are a new kernel-based subsystem diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST index af009bd6e..39c38cb45 100644 --- a/tools/perf/MANIFEST +++ b/tools/perf/MANIFEST @@ -17,6 +17,7 @@ tools/build tools/arch/x86/include/asm/atomic.h tools/arch/x86/include/asm/rmwcc.h tools/lib/traceevent +tools/lib/bpf tools/lib/api tools/lib/bpf tools/lib/hweight.c @@ -41,6 +42,7 @@ tools/include/asm-generic/bitops.h tools/include/linux/atomic.h tools/include/linux/bitops.h tools/include/linux/compiler.h +tools/include/linux/filter.h tools/include/linux/hash.h tools/include/linux/kernel.h tools/include/linux/list.h @@ -49,6 +51,7 @@ tools/include/linux/poison.h tools/include/linux/rbtree.h tools/include/linux/rbtree_augmented.h tools/include/linux/types.h +tools/include/linux/err.h include/asm-generic/bitops/arch_hweight.h include/asm-generic/bitops/const_hweight.h include/asm-generic/bitops/fls64.h @@ -67,6 +70,8 @@ arch/*/lib/memset*.S include/linux/poison.h include/linux/hw_breakpoint.h include/uapi/linux/perf_event.h +include/uapi/linux/bpf.h +include/uapi/linux/bpf_common.h include/uapi/linux/const.h include/uapi/linux/swab.h include/uapi/linux/hw_breakpoint.h diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 480546d5f..dcd9a70c7 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -78,7 +78,7 @@ clean: # The build-test target is not really parallel, don't print the jobs info: # build-test: - @$(MAKE) -f tests/make --no-print-directory + @$(MAKE) SHUF=1 -f tests/make --no-print-directory # # All other targets get passed through: diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index d9863cb96..0d19d5447 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -75,6 +75,8 @@ include config/utilities.mak # Define NO_LZMA if you do not want to support compressed (xz) kernel modules # # Define NO_AUXTRACE if you do not want AUX area tracing support +# +# Define NO_LIBBPF if you do not want BPF support # As per kernel Makefile, avoid funny character set dependencies unexport LC_ALL @@ -145,6 +147,7 @@ AWK = awk LIB_DIR = $(srctree)/tools/lib/api/ TRACE_EVENT_DIR = $(srctree)/tools/lib/traceevent/ +BPF_DIR = $(srctree)/tools/lib/bpf/ # include config/Makefile by default and rule out # non-config cases @@ -180,6 +183,7 @@ strip-libs = $(filter-out -l%,$(1)) ifneq ($(OUTPUT),) TE_PATH=$(OUTPUT) + BPF_PATH=$(OUTPUT) ifneq ($(subdir),) LIB_PATH=$(OUTPUT)/../lib/api/ else @@ -188,6 +192,7 @@ endif else TE_PATH=$(TRACE_EVENT_DIR) LIB_PATH=$(LIB_DIR) + BPF_PATH=$(BPF_DIR) endif LIBTRACEEVENT = $(TE_PATH)libtraceevent.a @@ -199,6 +204,8 @@ LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS = -Xlinker --dynamic-list=$(LIBTRACEEVENT_DYN LIBAPI = $(LIB_PATH)libapi.a export LIBAPI +LIBBPF = $(BPF_PATH)libbpf.a + # python extension build directories PYTHON_EXTBUILD := $(OUTPUT)python_ext_build/ PYTHON_EXTBUILD_LIB := $(PYTHON_EXTBUILD)lib/ @@ -251,6 +258,9 @@ export PERL_PATH LIB_FILE=$(OUTPUT)libperf.a PERFLIBS = $(LIB_FILE) $(LIBAPI) $(LIBTRACEEVENT) +ifndef NO_LIBBPF + PERFLIBS += $(LIBBPF) +endif # We choose to avoid "if .. else if .. else .. endif endif" # because maintaining the nesting to match is a pain. If @@ -297,16 +307,16 @@ strip: $(PROGRAMS) $(OUTPUT)perf PERF_IN := $(OUTPUT)perf-in.o export srctree OUTPUT RM CC LD AR CFLAGS V BISON FLEX AWK -build := -f $(srctree)/tools/build/Makefile.build dir=. obj +include $(srctree)/tools/build/Makefile.include -$(PERF_IN): $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h FORCE +$(PERF_IN): prepare FORCE $(Q)$(MAKE) $(build)=perf $(OUTPUT)perf: $(PERFLIBS) $(PERF_IN) $(LIBTRACEEVENT_DYNAMIC_LIST) $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(LIBTRACEEVENT_DYNAMIC_LIST_LDFLAGS) \ $(PERF_IN) $(LIBS) -o $@ -$(GTK_IN): FORCE +$(GTK_IN): fixdep FORCE $(Q)$(MAKE) $(build)=gtk $(OUTPUT)libperf-gtk.so: $(GTK_IN) $(PERFLIBS) @@ -349,27 +359,27 @@ endif __build-dir = $(subst $(OUTPUT),,$(dir $@)) build-dir = $(if $(__build-dir),$(__build-dir),.) -single_dep: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h +prepare: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h fixdep -$(OUTPUT)%.o: %.c single_dep FORCE +$(OUTPUT)%.o: %.c prepare FORCE $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@ -$(OUTPUT)%.i: %.c single_dep FORCE +$(OUTPUT)%.i: %.c prepare FORCE $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@ -$(OUTPUT)%.s: %.c single_dep FORCE +$(OUTPUT)%.s: %.c prepare FORCE $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@ -$(OUTPUT)%-bison.o: %.c single_dep FORCE +$(OUTPUT)%-bison.o: %.c prepare FORCE $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@ -$(OUTPUT)%-flex.o: %.c single_dep FORCE +$(OUTPUT)%-flex.o: %.c prepare FORCE $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@ -$(OUTPUT)%.o: %.S single_dep FORCE +$(OUTPUT)%.o: %.S prepare FORCE $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@ -$(OUTPUT)%.i: %.S single_dep FORCE +$(OUTPUT)%.i: %.S prepare FORCE $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@ $(OUTPUT)perf-%: %.o $(PERFLIBS) @@ -389,7 +399,7 @@ $(patsubst perf-%,%.o,$(PROGRAMS)): $(wildcard */*.h) LIBPERF_IN := $(OUTPUT)libperf-in.o -$(LIBPERF_IN): FORCE +$(LIBPERF_IN): fixdep FORCE $(Q)$(MAKE) $(build)=libperf $(LIB_FILE): $(LIBPERF_IN) @@ -397,10 +407,10 @@ $(LIB_FILE): $(LIBPERF_IN) LIBTRACEEVENT_FLAGS += plugin_dir=$(plugindir_SQ) -$(LIBTRACEEVENT): FORCE +$(LIBTRACEEVENT): fixdep FORCE $(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) $(OUTPUT)libtraceevent.a -libtraceevent_plugins: FORCE +libtraceevent_plugins: fixdep FORCE $(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) plugins $(LIBTRACEEVENT_DYNAMIC_LIST): libtraceevent_plugins @@ -413,13 +423,20 @@ $(LIBTRACEEVENT)-clean: install-traceevent-plugins: $(LIBTRACEEVENT) $(Q)$(MAKE) -C $(TRACE_EVENT_DIR) $(LIBTRACEEVENT_FLAGS) O=$(OUTPUT) install_plugins -$(LIBAPI): FORCE +$(LIBAPI): fixdep FORCE $(Q)$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) $(OUTPUT)libapi.a $(LIBAPI)-clean: $(call QUIET_CLEAN, libapi) $(Q)$(MAKE) -C $(LIB_DIR) O=$(OUTPUT) clean >/dev/null +$(LIBBPF): fixdep FORCE + $(Q)$(MAKE) -C $(BPF_DIR) O=$(OUTPUT) $(OUTPUT)libbpf.a + +$(LIBBPF)-clean: + $(call QUIET_CLEAN, libbpf) + $(Q)$(MAKE) -C $(BPF_DIR) O=$(OUTPUT) clean >/dev/null + help: @echo 'Perf make targets:' @echo ' doc - make *all* documentation (see below)' @@ -459,7 +476,7 @@ INSTALL_DOC_TARGETS += quick-install-doc quick-install-man quick-install-html $(DOC_TARGETS): $(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) $(@:doc=all) -TAG_FOLDERS= . ../lib/traceevent ../lib/api ../lib/symbol +TAG_FOLDERS= . ../lib/traceevent ../lib/api ../lib/symbol ../include ../lib/bpf TAG_FILES= ../../include/uapi/linux/perf_event.h TAGS: @@ -567,7 +584,7 @@ config-clean: $(call QUIET_CLEAN, config) $(Q)$(MAKE) -C $(srctree)/tools/build/feature/ clean >/dev/null -clean: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean config-clean +clean: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean config-clean $(call QUIET_CLEAN, core-objs) $(RM) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(LANG_BINDINGS) $(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete $(Q)$(RM) $(OUTPUT).config-detected @@ -591,6 +608,6 @@ FORCE: .PHONY: all install clean config-clean strip install-gtk .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell -.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope FORCE single_dep +.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope FORCE prepare .PHONY: libtraceevent_plugins diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c index b00dfd92e..e83c8ce24 100644 --- a/tools/perf/arch/common.c +++ b/tools/perf/arch/common.c @@ -128,9 +128,8 @@ static const char *normalize_arch(char *arch) return arch; } -static int perf_session_env__lookup_binutils_path(struct perf_env *env, - const char *name, - const char **path) +static int perf_env__lookup_binutils_path(struct perf_env *env, + const char *name, const char **path) { int idx; const char *arch, *cross_env; @@ -206,7 +205,7 @@ out_error: return -1; } -int perf_session_env__lookup_objdump(struct perf_env *env) +int perf_env__lookup_objdump(struct perf_env *env) { /* * For live mode, env->arch will be NULL and we can use @@ -215,6 +214,5 @@ int perf_session_env__lookup_objdump(struct perf_env *env) if (env->arch == NULL) return 0; - return perf_session_env__lookup_binutils_path(env, "objdump", - &objdump_path); + return perf_env__lookup_binutils_path(env, "objdump", &objdump_path); } diff --git a/tools/perf/arch/common.h b/tools/perf/arch/common.h index 20176df69..7529cfb14 100644 --- a/tools/perf/arch/common.h +++ b/tools/perf/arch/common.h @@ -1,10 +1,10 @@ #ifndef ARCH_PERF_COMMON_H #define ARCH_PERF_COMMON_H -#include "../util/session.h" +#include "../util/env.h" extern const char *objdump_path; -int perf_session_env__lookup_objdump(struct perf_env *env); +int perf_env__lookup_objdump(struct perf_env *env); #endif /* ARCH_PERF_COMMON_H */ diff --git a/tools/perf/arch/x86/Build b/tools/perf/arch/x86/Build index 41bf61da4..db52fa22d 100644 --- a/tools/perf/arch/x86/Build +++ b/tools/perf/arch/x86/Build @@ -1,2 +1,2 @@ libperf-y += util/ -libperf-$(CONFIG_DWARF_UNWIND) += tests/ +libperf-y += tests/ diff --git a/tools/perf/arch/x86/Makefile b/tools/perf/arch/x86/Makefile index 21322e038..09ba923de 100644 --- a/tools/perf/arch/x86/Makefile +++ b/tools/perf/arch/x86/Makefile @@ -2,3 +2,4 @@ ifndef NO_DWARF PERF_HAVE_DWARF_REGS := 1 endif HAVE_KVM_STAT_SUPPORT := 1 +PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1 diff --git a/tools/perf/arch/x86/include/arch-tests.h b/tools/perf/arch/x86/include/arch-tests.h new file mode 100644 index 000000000..7ed00f4b0 --- /dev/null +++ b/tools/perf/arch/x86/include/arch-tests.h @@ -0,0 +1,19 @@ +#ifndef ARCH_TESTS_H +#define ARCH_TESTS_H + +/* Tests */ +int test__rdpmc(void); +int test__perf_time_to_tsc(void); +int test__insn_x86(void); +int test__intel_cqm_count_nmi_context(void); + +#ifdef HAVE_DWARF_UNWIND_SUPPORT +struct thread; +struct perf_sample; +int test__arch_unwind_sample(struct perf_sample *sample, + struct thread *thread); +#endif + +extern struct test arch_tests[]; + +#endif diff --git a/tools/perf/arch/x86/tests/Build b/tools/perf/arch/x86/tests/Build index b30eff9bc..cbb7e9781 100644 --- a/tools/perf/arch/x86/tests/Build +++ b/tools/perf/arch/x86/tests/Build @@ -1,2 +1,8 @@ -libperf-y += regs_load.o -libperf-y += dwarf-unwind.o +libperf-$(CONFIG_DWARF_UNWIND) += regs_load.o +libperf-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o + +libperf-y += arch-tests.o +libperf-y += rdpmc.o +libperf-y += perf-time-to-tsc.o +libperf-$(CONFIG_AUXTRACE) += insn-x86.o +libperf-y += intel-cqm.o diff --git a/tools/perf/arch/x86/tests/arch-tests.c b/tools/perf/arch/x86/tests/arch-tests.c new file mode 100644 index 000000000..2218cb64f --- /dev/null +++ b/tools/perf/arch/x86/tests/arch-tests.c @@ -0,0 +1,34 @@ +#include <string.h> +#include "tests/tests.h" +#include "arch-tests.h" + +struct test arch_tests[] = { + { + .desc = "x86 rdpmc test", + .func = test__rdpmc, + }, + { + .desc = "Test converting perf time to TSC", + .func = test__perf_time_to_tsc, + }, +#ifdef HAVE_DWARF_UNWIND_SUPPORT + { + .desc = "Test dwarf unwind", + .func = test__dwarf_unwind, + }, +#endif +#ifdef HAVE_AUXTRACE_SUPPORT + { + .desc = "Test x86 instruction decoder - new instructions", + .func = test__insn_x86, + }, +#endif + { + .desc = "Test intel cqm nmi context read", + .func = test__intel_cqm_count_nmi_context, + }, + { + .func = NULL, + }, + +}; diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c index d8bbf7ad1..7f209ce82 100644 --- a/tools/perf/arch/x86/tests/dwarf-unwind.c +++ b/tools/perf/arch/x86/tests/dwarf-unwind.c @@ -5,6 +5,7 @@ #include "event.h" #include "debug.h" #include "tests/tests.h" +#include "arch-tests.h" #define STACK_SIZE 8192 diff --git a/tools/perf/arch/x86/tests/gen-insn-x86-dat.awk b/tools/perf/arch/x86/tests/gen-insn-x86-dat.awk new file mode 100644 index 000000000..a21454835 --- /dev/null +++ b/tools/perf/arch/x86/tests/gen-insn-x86-dat.awk @@ -0,0 +1,75 @@ +#!/bin/awk -f +# gen-insn-x86-dat.awk: script to convert data for the insn-x86 test +# Copyright (c) 2015, Intel Corporation. +# +# This program is free software; you can redistribute it and/or modify it +# under the terms and conditions of the GNU General Public License, +# version 2, as published by the Free Software Foundation. +# +# This program is distributed in the hope it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +# more details. + +BEGIN { + print "/*" + print " * Generated by gen-insn-x86-dat.sh and gen-insn-x86-dat.awk" + print " * from insn-x86-dat-src.c for inclusion by insn-x86.c" + print " * Do not change this code." + print "*/\n" + op = "" + branch = "" + rel = 0 + going = 0 +} + +/ Start here / { + going = 1 +} + +/ Stop here / { + going = 0 +} + +/^\s*[0-9a-fA-F]+\:/ { + if (going) { + colon_pos = index($0, ":") + useful_line = substr($0, colon_pos + 1) + first_pos = match(useful_line, "[0-9a-fA-F]") + useful_line = substr(useful_line, first_pos) + gsub("\t", "\\t", useful_line) + printf "{{" + len = 0 + for (i = 2; i <= NF; i++) { + if (match($i, "^[0-9a-fA-F][0-9a-fA-F]$")) { + printf "0x%s, ", $i + len += 1 + } else { + break + } + } + printf "}, %d, %s, \"%s\", \"%s\",", len, rel, op, branch + printf "\n\"%s\",},\n", useful_line + op = "" + branch = "" + rel = 0 + } +} + +/ Expecting: / { + expecting_str = " Expecting: " + expecting_len = length(expecting_str) + expecting_pos = index($0, expecting_str) + useful_line = substr($0, expecting_pos + expecting_len) + for (i = 1; i <= NF; i++) { + if ($i == "Expecting:") { + i++ + op = $i + i++ + branch = $i + i++ + rel = $i + break + } + } +} diff --git a/tools/perf/arch/x86/tests/gen-insn-x86-dat.sh b/tools/perf/arch/x86/tests/gen-insn-x86-dat.sh new file mode 100755 index 000000000..2d4ef94cf --- /dev/null +++ b/tools/perf/arch/x86/tests/gen-insn-x86-dat.sh @@ -0,0 +1,43 @@ +#!/bin/sh +# gen-insn-x86-dat: generate data for the insn-x86 test +# Copyright (c) 2015, Intel Corporation. +# +# This program is free software; you can redistribute it and/or modify it +# under the terms and conditions of the GNU General Public License, +# version 2, as published by the Free Software Foundation. +# +# This program is distributed in the hope it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +# more details. + +set -e + +if [ "$(uname -m)" != "x86_64" ]; then + echo "ERROR: This script only works on x86_64" + exit 1 +fi + +cd $(dirname $0) + +trap 'echo "Might need a more recent version of binutils"' EXIT + +echo "Compiling insn-x86-dat-src.c to 64-bit object" + +gcc -g -c insn-x86-dat-src.c + +objdump -dSw insn-x86-dat-src.o | awk -f gen-insn-x86-dat.awk > insn-x86-dat-64.c + +rm -f insn-x86-dat-src.o + +echo "Compiling insn-x86-dat-src.c to 32-bit object" + +gcc -g -c -m32 insn-x86-dat-src.c + +objdump -dSw insn-x86-dat-src.o | awk -f gen-insn-x86-dat.awk > insn-x86-dat-32.c + +rm -f insn-x86-dat-src.o + +trap - EXIT + +echo "Done (use git diff to see the changes)" diff --git a/tools/perf/arch/x86/tests/insn-x86-dat-32.c b/tools/perf/arch/x86/tests/insn-x86-dat-32.c new file mode 100644 index 000000000..3b491cfe2 --- /dev/null +++ b/tools/perf/arch/x86/tests/insn-x86-dat-32.c @@ -0,0 +1,658 @@ +/* + * Generated by gen-insn-x86-dat.sh and gen-insn-x86-dat.awk + * from insn-x86-dat-src.c for inclusion by insn-x86.c + * Do not change this code. +*/ + +{{0x0f, 0x31, }, 2, 0, "", "", +"0f 31 \trdtsc ",}, +{{0xf3, 0x0f, 0x1b, 0x00, }, 4, 0, "", "", +"f3 0f 1b 00 \tbndmk (%eax),%bnd0",}, +{{0xf3, 0x0f, 0x1b, 0x05, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"f3 0f 1b 05 78 56 34 12 \tbndmk 0x12345678,%bnd0",}, +{{0xf3, 0x0f, 0x1b, 0x18, }, 4, 0, "", "", +"f3 0f 1b 18 \tbndmk (%eax),%bnd3",}, +{{0xf3, 0x0f, 0x1b, 0x04, 0x01, }, 5, 0, "", "", +"f3 0f 1b 04 01 \tbndmk (%ecx,%eax,1),%bnd0",}, +{{0xf3, 0x0f, 0x1b, 0x04, 0x05, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f3 0f 1b 04 05 78 56 34 12 \tbndmk 0x12345678(,%eax,1),%bnd0",}, +{{0xf3, 0x0f, 0x1b, 0x04, 0x08, }, 5, 0, "", "", +"f3 0f 1b 04 08 \tbndmk (%eax,%ecx,1),%bnd0",}, +{{0xf3, 0x0f, 0x1b, 0x04, 0xc8, }, 5, 0, "", "", +"f3 0f 1b 04 c8 \tbndmk (%eax,%ecx,8),%bnd0",}, +{{0xf3, 0x0f, 0x1b, 0x40, 0x12, }, 5, 0, "", "", +"f3 0f 1b 40 12 \tbndmk 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-0,0 +1,768 @@ +/* + * Generated by gen-insn-x86-dat.sh and gen-insn-x86-dat.awk + * from insn-x86-dat-src.c for inclusion by insn-x86.c + * Do not change this code. +*/ + +{{0x0f, 0x31, }, 2, 0, "", "", +"0f 31 \trdtsc ",}, +{{0xf3, 0x0f, 0x1b, 0x00, }, 4, 0, "", "", +"f3 0f 1b 00 \tbndmk (%rax),%bnd0",}, +{{0xf3, 0x41, 0x0f, 0x1b, 0x00, }, 5, 0, "", "", +"f3 41 0f 1b 00 \tbndmk (%r8),%bnd0",}, +{{0xf3, 0x0f, 0x1b, 0x04, 0x25, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f3 0f 1b 04 25 78 56 34 12 \tbndmk 0x12345678,%bnd0",}, +{{0xf3, 0x0f, 0x1b, 0x18, }, 4, 0, "", "", +"f3 0f 1b 18 \tbndmk (%rax),%bnd3",}, +{{0xf3, 0x0f, 0x1b, 0x04, 0x01, }, 5, 0, "", "", +"f3 0f 1b 04 01 \tbndmk (%rcx,%rax,1),%bnd0",}, +{{0xf3, 0x0f, 0x1b, 0x04, 0x05, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f3 0f 1b 04 05 78 56 34 12 \tbndmk 0x12345678(,%rax,1),%bnd0",}, +{{0xf3, 0x0f, 0x1b, 0x04, 0x08, }, 5, 0, "", "", +"f3 0f 1b 04 08 \tbndmk (%rax,%rcx,1),%bnd0",}, +{{0xf3, 0x0f, 0x1b, 0x04, 0xc8, }, 5, 0, "", 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1a 00 \tbndcu (%rax),%bnd0",}, +{{0xf2, 0x41, 0x0f, 0x1a, 0x00, }, 5, 0, "", "", +"f2 41 0f 1a 00 \tbndcu (%r8),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x04, 0x25, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f2 0f 1a 04 25 78 56 34 12 \tbndcu 0x12345678,%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x18, }, 4, 0, "", "", +"f2 0f 1a 18 \tbndcu (%rax),%bnd3",}, +{{0xf2, 0x0f, 0x1a, 0x04, 0x01, }, 5, 0, "", "", +"f2 0f 1a 04 01 \tbndcu (%rcx,%rax,1),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x04, 0x05, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f2 0f 1a 04 05 78 56 34 12 \tbndcu 0x12345678(,%rax,1),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x04, 0x08, }, 5, 0, "", "", +"f2 0f 1a 04 08 \tbndcu (%rax,%rcx,1),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x04, 0xc8, }, 5, 0, "", "", +"f2 0f 1a 04 c8 \tbndcu (%rax,%rcx,8),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x40, 0x12, }, 5, 0, "", "", +"f2 0f 1a 40 12 \tbndcu 0x12(%rax),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x45, 0x12, }, 5, 0, "", "", +"f2 0f 1a 45 12 \tbndcu 0x12(%rbp),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x44, 0x01, 0x12, }, 6, 0, "", "", +"f2 0f 1a 44 01 12 \tbndcu 0x12(%rcx,%rax,1),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x44, 0x05, 0x12, }, 6, 0, "", "", +"f2 0f 1a 44 05 12 \tbndcu 0x12(%rbp,%rax,1),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x44, 0x08, 0x12, }, 6, 0, "", "", +"f2 0f 1a 44 08 12 \tbndcu 0x12(%rax,%rcx,1),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x44, 0xc8, 0x12, }, 6, 0, "", "", +"f2 0f 1a 44 c8 12 \tbndcu 0x12(%rax,%rcx,8),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x80, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"f2 0f 1a 80 78 56 34 12 \tbndcu 0x12345678(%rax),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x85, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"f2 0f 1a 85 78 56 34 12 \tbndcu 0x12345678(%rbp),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x84, 0x01, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f2 0f 1a 84 01 78 56 34 12 \tbndcu 0x12345678(%rcx,%rax,1),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x84, 0x05, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f2 0f 1a 84 05 78 56 34 12 \tbndcu 0x12345678(%rbp,%rax,1),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x84, 0x08, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f2 0f 1a 84 08 78 56 34 12 \tbndcu 0x12345678(%rax,%rcx,1),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0x84, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f2 0f 1a 84 c8 78 56 34 12 \tbndcu 0x12345678(%rax,%rcx,8),%bnd0",}, +{{0xf2, 0x0f, 0x1a, 0xc0, }, 4, 0, "", "", +"f2 0f 1a c0 \tbndcu %rax,%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x00, }, 4, 0, "", "", +"f2 0f 1b 00 \tbndcn (%rax),%bnd0",}, +{{0xf2, 0x41, 0x0f, 0x1b, 0x00, }, 5, 0, "", "", +"f2 41 0f 1b 00 \tbndcn (%r8),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x04, 0x25, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f2 0f 1b 04 25 78 56 34 12 \tbndcn 0x12345678,%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x18, }, 4, 0, "", "", +"f2 0f 1b 18 \tbndcn (%rax),%bnd3",}, +{{0xf2, 0x0f, 0x1b, 0x04, 0x01, }, 5, 0, "", "", +"f2 0f 1b 04 01 \tbndcn (%rcx,%rax,1),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x04, 0x05, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f2 0f 1b 04 05 78 56 34 12 \tbndcn 0x12345678(,%rax,1),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x04, 0x08, }, 5, 0, "", "", +"f2 0f 1b 04 08 \tbndcn (%rax,%rcx,1),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x04, 0xc8, }, 5, 0, "", "", +"f2 0f 1b 04 c8 \tbndcn (%rax,%rcx,8),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x40, 0x12, }, 5, 0, "", "", +"f2 0f 1b 40 12 \tbndcn 0x12(%rax),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x45, 0x12, }, 5, 0, "", "", +"f2 0f 1b 45 12 \tbndcn 0x12(%rbp),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x44, 0x01, 0x12, }, 6, 0, "", "", +"f2 0f 1b 44 01 12 \tbndcn 0x12(%rcx,%rax,1),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x44, 0x05, 0x12, }, 6, 0, "", "", +"f2 0f 1b 44 05 12 \tbndcn 0x12(%rbp,%rax,1),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x44, 0x08, 0x12, }, 6, 0, "", "", +"f2 0f 1b 44 08 12 \tbndcn 0x12(%rax,%rcx,1),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x44, 0xc8, 0x12, }, 6, 0, "", "", +"f2 0f 1b 44 c8 12 \tbndcn 0x12(%rax,%rcx,8),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x80, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"f2 0f 1b 80 78 56 34 12 \tbndcn 0x12345678(%rax),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x85, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"f2 0f 1b 85 78 56 34 12 \tbndcn 0x12345678(%rbp),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x84, 0x01, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f2 0f 1b 84 01 78 56 34 12 \tbndcn 0x12345678(%rcx,%rax,1),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x84, 0x05, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f2 0f 1b 84 05 78 56 34 12 \tbndcn 0x12345678(%rbp,%rax,1),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x84, 0x08, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f2 0f 1b 84 08 78 56 34 12 \tbndcn 0x12345678(%rax,%rcx,1),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0x84, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"f2 0f 1b 84 c8 78 56 34 12 \tbndcn 0x12345678(%rax,%rcx,8),%bnd0",}, +{{0xf2, 0x0f, 0x1b, 0xc0, }, 4, 0, "", "", +"f2 0f 1b c0 \tbndcn %rax,%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x00, }, 4, 0, "", "", +"66 0f 1a 00 \tbndmov (%rax),%bnd0",}, +{{0x66, 0x41, 0x0f, 0x1a, 0x00, }, 5, 0, "", "", +"66 41 0f 1a 00 \tbndmov (%r8),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x04, 0x25, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"66 0f 1a 04 25 78 56 34 12 \tbndmov 0x12345678,%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x18, }, 4, 0, "", "", +"66 0f 1a 18 \tbndmov (%rax),%bnd3",}, +{{0x66, 0x0f, 0x1a, 0x04, 0x01, }, 5, 0, "", "", +"66 0f 1a 04 01 \tbndmov (%rcx,%rax,1),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x04, 0x05, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"66 0f 1a 04 05 78 56 34 12 \tbndmov 0x12345678(,%rax,1),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x04, 0x08, }, 5, 0, "", "", +"66 0f 1a 04 08 \tbndmov (%rax,%rcx,1),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x04, 0xc8, }, 5, 0, "", "", +"66 0f 1a 04 c8 \tbndmov (%rax,%rcx,8),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x40, 0x12, }, 5, 0, "", "", +"66 0f 1a 40 12 \tbndmov 0x12(%rax),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x45, 0x12, }, 5, 0, "", "", +"66 0f 1a 45 12 \tbndmov 0x12(%rbp),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x44, 0x01, 0x12, }, 6, 0, "", "", +"66 0f 1a 44 01 12 \tbndmov 0x12(%rcx,%rax,1),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x44, 0x05, 0x12, }, 6, 0, "", "", +"66 0f 1a 44 05 12 \tbndmov 0x12(%rbp,%rax,1),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x44, 0x08, 0x12, }, 6, 0, "", "", +"66 0f 1a 44 08 12 \tbndmov 0x12(%rax,%rcx,1),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x44, 0xc8, 0x12, }, 6, 0, "", "", +"66 0f 1a 44 c8 12 \tbndmov 0x12(%rax,%rcx,8),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x80, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"66 0f 1a 80 78 56 34 12 \tbndmov 0x12345678(%rax),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x85, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"66 0f 1a 85 78 56 34 12 \tbndmov 0x12345678(%rbp),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x84, 0x01, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"66 0f 1a 84 01 78 56 34 12 \tbndmov 0x12345678(%rcx,%rax,1),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x84, 0x05, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"66 0f 1a 84 05 78 56 34 12 \tbndmov 0x12345678(%rbp,%rax,1),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x84, 0x08, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"66 0f 1a 84 08 78 56 34 12 \tbndmov 0x12345678(%rax,%rcx,1),%bnd0",}, +{{0x66, 0x0f, 0x1a, 0x84, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"66 0f 1a 84 c8 78 56 34 12 \tbndmov 0x12345678(%rax,%rcx,8),%bnd0",}, +{{0x66, 0x0f, 0x1b, 0x00, }, 4, 0, "", "", +"66 0f 1b 00 \tbndmov %bnd0,(%rax)",}, +{{0x66, 0x41, 0x0f, 0x1b, 0x00, }, 5, 0, "", "", +"66 41 0f 1b 00 \tbndmov %bnd0,(%r8)",}, +{{0x66, 0x0f, 0x1b, 0x04, 0x25, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"66 0f 1b 04 25 78 56 34 12 \tbndmov %bnd0,0x12345678",}, +{{0x66, 0x0f, 0x1b, 0x18, }, 4, 0, "", "", +"66 0f 1b 18 \tbndmov %bnd3,(%rax)",}, +{{0x66, 0x0f, 0x1b, 0x04, 0x01, }, 5, 0, "", "", +"66 0f 1b 04 01 \tbndmov %bnd0,(%rcx,%rax,1)",}, +{{0x66, 0x0f, 0x1b, 0x04, 0x05, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"66 0f 1b 04 05 78 56 34 12 \tbndmov %bnd0,0x12345678(,%rax,1)",}, +{{0x66, 0x0f, 0x1b, 0x04, 0x08, }, 5, 0, "", "", +"66 0f 1b 04 08 \tbndmov %bnd0,(%rax,%rcx,1)",}, +{{0x66, 0x0f, 0x1b, 0x04, 0xc8, }, 5, 0, "", "", +"66 0f 1b 04 c8 \tbndmov %bnd0,(%rax,%rcx,8)",}, +{{0x66, 0x0f, 0x1b, 0x40, 0x12, }, 5, 0, "", "", +"66 0f 1b 40 12 \tbndmov %bnd0,0x12(%rax)",}, +{{0x66, 0x0f, 0x1b, 0x45, 0x12, }, 5, 0, "", "", +"66 0f 1b 45 12 \tbndmov %bnd0,0x12(%rbp)",}, +{{0x66, 0x0f, 0x1b, 0x44, 0x01, 0x12, }, 6, 0, "", "", +"66 0f 1b 44 01 12 \tbndmov %bnd0,0x12(%rcx,%rax,1)",}, +{{0x66, 0x0f, 0x1b, 0x44, 0x05, 0x12, }, 6, 0, "", "", +"66 0f 1b 44 05 12 \tbndmov %bnd0,0x12(%rbp,%rax,1)",}, +{{0x66, 0x0f, 0x1b, 0x44, 0x08, 0x12, }, 6, 0, "", "", +"66 0f 1b 44 08 12 \tbndmov %bnd0,0x12(%rax,%rcx,1)",}, +{{0x66, 0x0f, 0x1b, 0x44, 0xc8, 0x12, }, 6, 0, "", "", +"66 0f 1b 44 c8 12 \tbndmov %bnd0,0x12(%rax,%rcx,8)",}, +{{0x66, 0x0f, 0x1b, 0x80, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"66 0f 1b 80 78 56 34 12 \tbndmov %bnd0,0x12345678(%rax)",}, +{{0x66, 0x0f, 0x1b, 0x85, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"66 0f 1b 85 78 56 34 12 \tbndmov %bnd0,0x12345678(%rbp)",}, +{{0x66, 0x0f, 0x1b, 0x84, 0x01, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"66 0f 1b 84 01 78 56 34 12 \tbndmov %bnd0,0x12345678(%rcx,%rax,1)",}, +{{0x66, 0x0f, 0x1b, 0x84, 0x05, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"66 0f 1b 84 05 78 56 34 12 \tbndmov %bnd0,0x12345678(%rbp,%rax,1)",}, +{{0x66, 0x0f, 0x1b, 0x84, 0x08, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"66 0f 1b 84 08 78 56 34 12 \tbndmov %bnd0,0x12345678(%rax,%rcx,1)",}, +{{0x66, 0x0f, 0x1b, 0x84, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"66 0f 1b 84 c8 78 56 34 12 \tbndmov %bnd0,0x12345678(%rax,%rcx,8)",}, +{{0x66, 0x0f, 0x1a, 0xc8, }, 4, 0, "", "", +"66 0f 1a c8 \tbndmov %bnd0,%bnd1",}, +{{0x66, 0x0f, 0x1a, 0xc1, }, 4, 0, "", "", +"66 0f 1a c1 \tbndmov %bnd1,%bnd0",}, +{{0x0f, 0x1a, 0x00, }, 3, 0, "", "", +"0f 1a 00 \tbndldx (%rax),%bnd0",}, +{{0x41, 0x0f, 0x1a, 0x00, }, 4, 0, "", "", +"41 0f 1a 00 \tbndldx (%r8),%bnd0",}, +{{0x0f, 0x1a, 0x04, 0x25, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"0f 1a 04 25 78 56 34 12 \tbndldx 0x12345678,%bnd0",}, +{{0x0f, 0x1a, 0x18, }, 3, 0, "", "", +"0f 1a 18 \tbndldx (%rax),%bnd3",}, +{{0x0f, 0x1a, 0x04, 0x01, }, 4, 0, "", "", +"0f 1a 04 01 \tbndldx (%rcx,%rax,1),%bnd0",}, +{{0x0f, 0x1a, 0x04, 0x05, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"0f 1a 04 05 78 56 34 12 \tbndldx 0x12345678(,%rax,1),%bnd0",}, +{{0x0f, 0x1a, 0x04, 0x08, }, 4, 0, "", "", +"0f 1a 04 08 \tbndldx (%rax,%rcx,1),%bnd0",}, +{{0x0f, 0x1a, 0x40, 0x12, }, 4, 0, "", "", +"0f 1a 40 12 \tbndldx 0x12(%rax),%bnd0",}, +{{0x0f, 0x1a, 0x45, 0x12, }, 4, 0, "", "", +"0f 1a 45 12 \tbndldx 0x12(%rbp),%bnd0",}, +{{0x0f, 0x1a, 0x44, 0x01, 0x12, }, 5, 0, "", "", +"0f 1a 44 01 12 \tbndldx 0x12(%rcx,%rax,1),%bnd0",}, +{{0x0f, 0x1a, 0x44, 0x05, 0x12, }, 5, 0, "", "", +"0f 1a 44 05 12 \tbndldx 0x12(%rbp,%rax,1),%bnd0",}, +{{0x0f, 0x1a, 0x44, 0x08, 0x12, }, 5, 0, "", "", +"0f 1a 44 08 12 \tbndldx 0x12(%rax,%rcx,1),%bnd0",}, +{{0x0f, 0x1a, 0x80, 0x78, 0x56, 0x34, 0x12, }, 7, 0, "", "", +"0f 1a 80 78 56 34 12 \tbndldx 0x12345678(%rax),%bnd0",}, +{{0x0f, 0x1a, 0x85, 0x78, 0x56, 0x34, 0x12, }, 7, 0, "", "", +"0f 1a 85 78 56 34 12 \tbndldx 0x12345678(%rbp),%bnd0",}, +{{0x0f, 0x1a, 0x84, 0x01, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"0f 1a 84 01 78 56 34 12 \tbndldx 0x12345678(%rcx,%rax,1),%bnd0",}, +{{0x0f, 0x1a, 0x84, 0x05, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"0f 1a 84 05 78 56 34 12 \tbndldx 0x12345678(%rbp,%rax,1),%bnd0",}, +{{0x0f, 0x1a, 0x84, 0x08, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"0f 1a 84 08 78 56 34 12 \tbndldx 0x12345678(%rax,%rcx,1),%bnd0",}, +{{0x0f, 0x1b, 0x00, }, 3, 0, "", "", +"0f 1b 00 \tbndstx %bnd0,(%rax)",}, +{{0x41, 0x0f, 0x1b, 0x00, }, 4, 0, "", "", +"41 0f 1b 00 \tbndstx %bnd0,(%r8)",}, +{{0x0f, 0x1b, 0x04, 0x25, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"0f 1b 04 25 78 56 34 12 \tbndstx %bnd0,0x12345678",}, +{{0x0f, 0x1b, 0x18, }, 3, 0, "", "", +"0f 1b 18 \tbndstx %bnd3,(%rax)",}, +{{0x0f, 0x1b, 0x04, 0x01, }, 4, 0, "", "", +"0f 1b 04 01 \tbndstx %bnd0,(%rcx,%rax,1)",}, +{{0x0f, 0x1b, 0x04, 0x05, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"0f 1b 04 05 78 56 34 12 \tbndstx %bnd0,0x12345678(,%rax,1)",}, +{{0x0f, 0x1b, 0x04, 0x08, }, 4, 0, "", "", +"0f 1b 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25 78 56 34 12 \txsaves 0x12345678",}, +{{0x0f, 0xc7, 0xac, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"0f c7 ac c8 78 56 34 12 \txsaves 0x12345678(%rax,%rcx,8)",}, +{{0x41, 0x0f, 0xc7, 0xac, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"41 0f c7 ac c8 78 56 34 12 \txsaves 0x12345678(%r8,%rcx,8)",}, +{{0x0f, 0xc7, 0x18, }, 3, 0, "", "", +"0f c7 18 \txrstors (%rax)",}, +{{0x41, 0x0f, 0xc7, 0x18, }, 4, 0, "", "", +"41 0f c7 18 \txrstors (%r8)",}, +{{0x0f, 0xc7, 0x1c, 0x25, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"0f c7 1c 25 78 56 34 12 \txrstors 0x12345678",}, +{{0x0f, 0xc7, 0x9c, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "", +"0f c7 9c c8 78 56 34 12 \txrstors 0x12345678(%rax,%rcx,8)",}, +{{0x41, 0x0f, 0xc7, 0x9c, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "", +"41 0f c7 9c c8 78 56 34 12 \txrstors 0x12345678(%r8,%rcx,8)",}, +{{0x66, 0x0f, 0xae, 0xf8, }, 4, 0, "", "", +"66 0f ae f8 \tpcommit ",}, diff --git a/tools/perf/arch/x86/tests/insn-x86-dat-src.c b/tools/perf/arch/x86/tests/insn-x86-dat-src.c new file mode 100644 index 000000000..41b1b1c62 --- /dev/null +++ b/tools/perf/arch/x86/tests/insn-x86-dat-src.c @@ -0,0 +1,877 @@ +/* + * This file contains instructions for testing by the test titled: + * + * "Test x86 instruction decoder - new instructions" + * + * Note that the 'Expecting' comment lines are consumed by the + * gen-insn-x86-dat.awk script and have the format: + * + * Expecting: <op> <branch> <rel> + * + * If this file is changed, remember to run the gen-insn-x86-dat.sh + * script and commit the result. + * + * Refer to insn-x86.c for more details. + */ + +int main(void) +{ + /* Following line is a marker for the awk script - do not change */ + asm volatile("rdtsc"); /* Start here */ + +#ifdef __x86_64__ + + /* bndmk m64, bnd */ + + asm volatile("bndmk (%rax), %bnd0"); + asm volatile("bndmk (%r8), %bnd0"); + asm volatile("bndmk (0x12345678), %bnd0"); + asm volatile("bndmk (%rax), %bnd3"); + asm volatile("bndmk (%rcx,%rax,1), %bnd0"); + asm volatile("bndmk 0x12345678(,%rax,1), %bnd0"); + asm volatile("bndmk (%rax,%rcx,1), %bnd0"); + asm volatile("bndmk (%rax,%rcx,8), %bnd0"); + asm volatile("bndmk 0x12(%rax), %bnd0"); + asm volatile("bndmk 0x12(%rbp), %bnd0"); + asm volatile("bndmk 0x12(%rcx,%rax,1), %bnd0"); + asm volatile("bndmk 0x12(%rbp,%rax,1), %bnd0"); + asm volatile("bndmk 0x12(%rax,%rcx,1), %bnd0"); + asm volatile("bndmk 0x12(%rax,%rcx,8), %bnd0"); + asm volatile("bndmk 0x12345678(%rax), %bnd0"); + asm volatile("bndmk 0x12345678(%rbp), %bnd0"); + asm volatile("bndmk 0x12345678(%rcx,%rax,1), %bnd0"); + asm volatile("bndmk 0x12345678(%rbp,%rax,1), %bnd0"); + asm volatile("bndmk 0x12345678(%rax,%rcx,1), %bnd0"); + asm volatile("bndmk 0x12345678(%rax,%rcx,8), %bnd0"); + + /* bndcl r/m64, bnd */ + + asm volatile("bndcl (%rax), %bnd0"); + asm volatile("bndcl (%r8), %bnd0"); + asm volatile("bndcl (0x12345678), %bnd0"); + asm volatile("bndcl (%rax), %bnd3"); + asm volatile("bndcl (%rcx,%rax,1), %bnd0"); + asm volatile("bndcl 0x12345678(,%rax,1), %bnd0"); + asm volatile("bndcl (%rax,%rcx,1), %bnd0"); + asm volatile("bndcl (%rax,%rcx,8), %bnd0"); + asm volatile("bndcl 0x12(%rax), %bnd0"); + asm volatile("bndcl 0x12(%rbp), %bnd0"); + asm volatile("bndcl 0x12(%rcx,%rax,1), %bnd0"); + asm volatile("bndcl 0x12(%rbp,%rax,1), %bnd0"); + asm volatile("bndcl 0x12(%rax,%rcx,1), %bnd0"); + asm volatile("bndcl 0x12(%rax,%rcx,8), %bnd0"); + asm volatile("bndcl 0x12345678(%rax), %bnd0"); + asm volatile("bndcl 0x12345678(%rbp), %bnd0"); + asm volatile("bndcl 0x12345678(%rcx,%rax,1), %bnd0"); + asm volatile("bndcl 0x12345678(%rbp,%rax,1), %bnd0"); + asm volatile("bndcl 0x12345678(%rax,%rcx,1), %bnd0"); + asm volatile("bndcl 0x12345678(%rax,%rcx,8), %bnd0"); + asm volatile("bndcl %rax, %bnd0"); + + /* bndcu r/m64, bnd */ + + asm volatile("bndcu (%rax), %bnd0"); + asm volatile("bndcu (%r8), %bnd0"); + asm volatile("bndcu (0x12345678), %bnd0"); + asm volatile("bndcu (%rax), %bnd3"); + asm volatile("bndcu (%rcx,%rax,1), %bnd0"); + asm volatile("bndcu 0x12345678(,%rax,1), %bnd0"); + asm volatile("bndcu (%rax,%rcx,1), %bnd0"); + asm volatile("bndcu (%rax,%rcx,8), %bnd0"); + asm volatile("bndcu 0x12(%rax), %bnd0"); + asm volatile("bndcu 0x12(%rbp), %bnd0"); + asm volatile("bndcu 0x12(%rcx,%rax,1), %bnd0"); + asm volatile("bndcu 0x12(%rbp,%rax,1), %bnd0"); + asm volatile("bndcu 0x12(%rax,%rcx,1), %bnd0"); + asm volatile("bndcu 0x12(%rax,%rcx,8), %bnd0"); + asm volatile("bndcu 0x12345678(%rax), %bnd0"); + asm volatile("bndcu 0x12345678(%rbp), %bnd0"); + asm volatile("bndcu 0x12345678(%rcx,%rax,1), %bnd0"); + asm volatile("bndcu 0x12345678(%rbp,%rax,1), %bnd0"); + asm volatile("bndcu 0x12345678(%rax,%rcx,1), %bnd0"); + asm volatile("bndcu 0x12345678(%rax,%rcx,8), %bnd0"); + asm volatile("bndcu %rax, %bnd0"); + + /* bndcn r/m64, bnd */ + + asm volatile("bndcn (%rax), %bnd0"); + asm volatile("bndcn (%r8), %bnd0"); + asm volatile("bndcn (0x12345678), %bnd0"); + asm volatile("bndcn (%rax), %bnd3"); + asm volatile("bndcn (%rcx,%rax,1), %bnd0"); + asm volatile("bndcn 0x12345678(,%rax,1), %bnd0"); + asm volatile("bndcn (%rax,%rcx,1), %bnd0"); + asm volatile("bndcn (%rax,%rcx,8), %bnd0"); + asm volatile("bndcn 0x12(%rax), %bnd0"); + asm volatile("bndcn 0x12(%rbp), %bnd0"); + asm volatile("bndcn 0x12(%rcx,%rax,1), %bnd0"); + asm volatile("bndcn 0x12(%rbp,%rax,1), %bnd0"); + asm volatile("bndcn 0x12(%rax,%rcx,1), %bnd0"); + asm volatile("bndcn 0x12(%rax,%rcx,8), %bnd0"); + asm volatile("bndcn 0x12345678(%rax), %bnd0"); + asm volatile("bndcn 0x12345678(%rbp), %bnd0"); + asm volatile("bndcn 0x12345678(%rcx,%rax,1), %bnd0"); + asm volatile("bndcn 0x12345678(%rbp,%rax,1), %bnd0"); + asm volatile("bndcn 0x12345678(%rax,%rcx,1), %bnd0"); + asm volatile("bndcn 0x12345678(%rax,%rcx,8), %bnd0"); + asm volatile("bndcn %rax, %bnd0"); + + /* bndmov m128, bnd */ + + asm volatile("bndmov (%rax), %bnd0"); + asm volatile("bndmov (%r8), %bnd0"); + asm volatile("bndmov (0x12345678), %bnd0"); + asm volatile("bndmov (%rax), %bnd3"); + asm volatile("bndmov (%rcx,%rax,1), %bnd0"); + asm volatile("bndmov 0x12345678(,%rax,1), %bnd0"); + asm volatile("bndmov (%rax,%rcx,1), %bnd0"); + asm volatile("bndmov (%rax,%rcx,8), %bnd0"); + asm volatile("bndmov 0x12(%rax), %bnd0"); + asm volatile("bndmov 0x12(%rbp), %bnd0"); + asm volatile("bndmov 0x12(%rcx,%rax,1), %bnd0"); + asm volatile("bndmov 0x12(%rbp,%rax,1), %bnd0"); + asm volatile("bndmov 0x12(%rax,%rcx,1), %bnd0"); + asm volatile("bndmov 0x12(%rax,%rcx,8), %bnd0"); + asm volatile("bndmov 0x12345678(%rax), %bnd0"); + asm volatile("bndmov 0x12345678(%rbp), %bnd0"); + asm volatile("bndmov 0x12345678(%rcx,%rax,1), %bnd0"); + asm volatile("bndmov 0x12345678(%rbp,%rax,1), %bnd0"); + asm volatile("bndmov 0x12345678(%rax,%rcx,1), %bnd0"); + asm volatile("bndmov 0x12345678(%rax,%rcx,8), %bnd0"); + + /* bndmov bnd, m128 */ + + asm volatile("bndmov %bnd0, (%rax)"); + asm volatile("bndmov %bnd0, (%r8)"); + asm volatile("bndmov %bnd0, (0x12345678)"); + asm volatile("bndmov %bnd3, (%rax)"); + asm volatile("bndmov %bnd0, (%rcx,%rax,1)"); + asm volatile("bndmov %bnd0, 0x12345678(,%rax,1)"); + asm volatile("bndmov %bnd0, (%rax,%rcx,1)"); + asm volatile("bndmov %bnd0, (%rax,%rcx,8)"); + asm volatile("bndmov %bnd0, 0x12(%rax)"); + asm volatile("bndmov %bnd0, 0x12(%rbp)"); + asm volatile("bndmov %bnd0, 0x12(%rcx,%rax,1)"); + asm volatile("bndmov %bnd0, 0x12(%rbp,%rax,1)"); + asm volatile("bndmov %bnd0, 0x12(%rax,%rcx,1)"); + asm volatile("bndmov %bnd0, 0x12(%rax,%rcx,8)"); + asm volatile("bndmov %bnd0, 0x12345678(%rax)"); + asm volatile("bndmov %bnd0, 0x12345678(%rbp)"); + asm volatile("bndmov %bnd0, 0x12345678(%rcx,%rax,1)"); + asm volatile("bndmov %bnd0, 0x12345678(%rbp,%rax,1)"); + asm volatile("bndmov %bnd0, 0x12345678(%rax,%rcx,1)"); + asm volatile("bndmov %bnd0, 0x12345678(%rax,%rcx,8)"); + + /* bndmov bnd2, bnd1 */ + + asm volatile("bndmov %bnd0, %bnd1"); + asm volatile("bndmov %bnd1, %bnd0"); + + /* bndldx mib, bnd */ + + asm volatile("bndldx (%rax), %bnd0"); + asm volatile("bndldx (%r8), %bnd0"); + asm volatile("bndldx (0x12345678), %bnd0"); + asm volatile("bndldx (%rax), %bnd3"); + asm volatile("bndldx (%rcx,%rax,1), %bnd0"); + asm volatile("bndldx 0x12345678(,%rax,1), %bnd0"); + asm volatile("bndldx (%rax,%rcx,1), %bnd0"); + asm volatile("bndldx 0x12(%rax), %bnd0"); + asm volatile("bndldx 0x12(%rbp), %bnd0"); + asm volatile("bndldx 0x12(%rcx,%rax,1), %bnd0"); + asm volatile("bndldx 0x12(%rbp,%rax,1), %bnd0"); + asm volatile("bndldx 0x12(%rax,%rcx,1), %bnd0"); + asm volatile("bndldx 0x12345678(%rax), %bnd0"); + asm volatile("bndldx 0x12345678(%rbp), %bnd0"); + asm volatile("bndldx 0x12345678(%rcx,%rax,1), %bnd0"); + asm volatile("bndldx 0x12345678(%rbp,%rax,1), %bnd0"); + asm volatile("bndldx 0x12345678(%rax,%rcx,1), %bnd0"); + + /* bndstx bnd, mib */ + + asm volatile("bndstx %bnd0, (%rax)"); + asm volatile("bndstx %bnd0, (%r8)"); + asm volatile("bndstx %bnd0, (0x12345678)"); + asm volatile("bndstx %bnd3, (%rax)"); + asm volatile("bndstx %bnd0, (%rcx,%rax,1)"); + asm volatile("bndstx %bnd0, 0x12345678(,%rax,1)"); + asm volatile("bndstx %bnd0, (%rax,%rcx,1)"); + asm volatile("bndstx %bnd0, 0x12(%rax)"); + asm volatile("bndstx %bnd0, 0x12(%rbp)"); + asm volatile("bndstx %bnd0, 0x12(%rcx,%rax,1)"); + asm volatile("bndstx %bnd0, 0x12(%rbp,%rax,1)"); + asm volatile("bndstx %bnd0, 0x12(%rax,%rcx,1)"); + asm volatile("bndstx %bnd0, 0x12345678(%rax)"); + asm volatile("bndstx %bnd0, 0x12345678(%rbp)"); + asm volatile("bndstx %bnd0, 0x12345678(%rcx,%rax,1)"); + asm volatile("bndstx %bnd0, 0x12345678(%rbp,%rax,1)"); + asm volatile("bndstx %bnd0, 0x12345678(%rax,%rcx,1)"); + + /* bnd prefix on call, ret, jmp and all jcc */ + + asm volatile("bnd call label1"); /* Expecting: call unconditional 0 */ + asm volatile("bnd call *(%eax)"); /* Expecting: call indirect 0 */ + asm volatile("bnd ret"); /* Expecting: ret indirect 0 */ + asm volatile("bnd jmp label1"); /* Expecting: jmp unconditional 0 */ + asm volatile("bnd jmp label1"); /* Expecting: jmp unconditional 0 */ + asm volatile("bnd jmp *(%ecx)"); /* Expecting: jmp indirect 0 */ + asm volatile("bnd jne label1"); /* Expecting: jcc conditional 0 */ + + /* sha1rnds4 imm8, xmm2/m128, xmm1 */ + + asm volatile("sha1rnds4 $0x0, %xmm1, %xmm0"); + asm volatile("sha1rnds4 $0x91, %xmm7, %xmm2"); + asm volatile("sha1rnds4 $0x91, %xmm8, %xmm0"); + asm volatile("sha1rnds4 $0x91, %xmm7, %xmm8"); + asm volatile("sha1rnds4 $0x91, %xmm15, %xmm8"); + asm volatile("sha1rnds4 $0x91, (%rax), %xmm0"); + asm volatile("sha1rnds4 $0x91, (%r8), %xmm0"); + asm volatile("sha1rnds4 $0x91, (0x12345678), %xmm0"); + asm volatile("sha1rnds4 $0x91, (%rax), %xmm3"); + asm volatile("sha1rnds4 $0x91, (%rcx,%rax,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(,%rax,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, (%rax,%rcx,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, (%rax,%rcx,8), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12(%rax), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12(%rbp), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12(%rcx,%rax,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12(%rbp,%rax,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12(%rax,%rcx,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12(%rax,%rcx,8), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%rax), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%rbp), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%rcx,%rax,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%rbp,%rax,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%rax,%rcx,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%rax,%rcx,8), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%rax,%rcx,8), %xmm15"); + + /* sha1nexte xmm2/m128, xmm1 */ + + asm volatile("sha1nexte %xmm1, %xmm0"); + asm volatile("sha1nexte %xmm7, %xmm2"); + asm volatile("sha1nexte %xmm8, %xmm0"); + asm volatile("sha1nexte %xmm7, %xmm8"); + asm volatile("sha1nexte %xmm15, %xmm8"); + asm volatile("sha1nexte (%rax), %xmm0"); + asm volatile("sha1nexte (%r8), %xmm0"); + asm volatile("sha1nexte (0x12345678), %xmm0"); + asm volatile("sha1nexte (%rax), %xmm3"); + asm volatile("sha1nexte (%rcx,%rax,1), %xmm0"); + asm volatile("sha1nexte 0x12345678(,%rax,1), %xmm0"); + asm volatile("sha1nexte (%rax,%rcx,1), %xmm0"); + asm volatile("sha1nexte (%rax,%rcx,8), %xmm0"); + asm volatile("sha1nexte 0x12(%rax), %xmm0"); + asm volatile("sha1nexte 0x12(%rbp), %xmm0"); + asm volatile("sha1nexte 0x12(%rcx,%rax,1), %xmm0"); + asm volatile("sha1nexte 0x12(%rbp,%rax,1), %xmm0"); + asm volatile("sha1nexte 0x12(%rax,%rcx,1), %xmm0"); + asm volatile("sha1nexte 0x12(%rax,%rcx,8), %xmm0"); + asm volatile("sha1nexte 0x12345678(%rax), %xmm0"); + asm volatile("sha1nexte 0x12345678(%rbp), %xmm0"); + asm volatile("sha1nexte 0x12345678(%rcx,%rax,1), %xmm0"); + asm volatile("sha1nexte 0x12345678(%rbp,%rax,1), %xmm0"); + asm volatile("sha1nexte 0x12345678(%rax,%rcx,1), %xmm0"); + asm volatile("sha1nexte 0x12345678(%rax,%rcx,8), %xmm0"); + asm volatile("sha1nexte 0x12345678(%rax,%rcx,8), %xmm15"); + + /* sha1msg1 xmm2/m128, xmm1 */ + + asm volatile("sha1msg1 %xmm1, %xmm0"); + asm volatile("sha1msg1 %xmm7, %xmm2"); + asm volatile("sha1msg1 %xmm8, %xmm0"); + asm volatile("sha1msg1 %xmm7, %xmm8"); + asm volatile("sha1msg1 %xmm15, %xmm8"); + asm volatile("sha1msg1 (%rax), %xmm0"); + asm volatile("sha1msg1 (%r8), %xmm0"); + asm volatile("sha1msg1 (0x12345678), %xmm0"); + asm volatile("sha1msg1 (%rax), %xmm3"); + asm volatile("sha1msg1 (%rcx,%rax,1), %xmm0"); + asm volatile("sha1msg1 0x12345678(,%rax,1), %xmm0"); + asm volatile("sha1msg1 (%rax,%rcx,1), %xmm0"); + asm volatile("sha1msg1 (%rax,%rcx,8), %xmm0"); + asm volatile("sha1msg1 0x12(%rax), %xmm0"); + asm volatile("sha1msg1 0x12(%rbp), %xmm0"); + asm volatile("sha1msg1 0x12(%rcx,%rax,1), %xmm0"); + asm volatile("sha1msg1 0x12(%rbp,%rax,1), %xmm0"); + asm volatile("sha1msg1 0x12(%rax,%rcx,1), %xmm0"); + asm volatile("sha1msg1 0x12(%rax,%rcx,8), %xmm0"); + asm volatile("sha1msg1 0x12345678(%rax), %xmm0"); + asm volatile("sha1msg1 0x12345678(%rbp), %xmm0"); + asm volatile("sha1msg1 0x12345678(%rcx,%rax,1), %xmm0"); + asm volatile("sha1msg1 0x12345678(%rbp,%rax,1), %xmm0"); + asm volatile("sha1msg1 0x12345678(%rax,%rcx,1), %xmm0"); + asm volatile("sha1msg1 0x12345678(%rax,%rcx,8), %xmm0"); + asm volatile("sha1msg1 0x12345678(%rax,%rcx,8), %xmm15"); + + /* sha1msg2 xmm2/m128, xmm1 */ + + asm volatile("sha1msg2 %xmm1, %xmm0"); + asm volatile("sha1msg2 %xmm7, %xmm2"); + asm volatile("sha1msg2 %xmm8, %xmm0"); + asm volatile("sha1msg2 %xmm7, %xmm8"); + asm volatile("sha1msg2 %xmm15, %xmm8"); + asm volatile("sha1msg2 (%rax), %xmm0"); + asm volatile("sha1msg2 (%r8), %xmm0"); + asm volatile("sha1msg2 (0x12345678), %xmm0"); + asm volatile("sha1msg2 (%rax), %xmm3"); + asm volatile("sha1msg2 (%rcx,%rax,1), %xmm0"); + asm volatile("sha1msg2 0x12345678(,%rax,1), %xmm0"); + asm volatile("sha1msg2 (%rax,%rcx,1), %xmm0"); + asm volatile("sha1msg2 (%rax,%rcx,8), %xmm0"); + asm volatile("sha1msg2 0x12(%rax), %xmm0"); + asm volatile("sha1msg2 0x12(%rbp), %xmm0"); + asm volatile("sha1msg2 0x12(%rcx,%rax,1), %xmm0"); + asm volatile("sha1msg2 0x12(%rbp,%rax,1), %xmm0"); + asm volatile("sha1msg2 0x12(%rax,%rcx,1), %xmm0"); + asm volatile("sha1msg2 0x12(%rax,%rcx,8), %xmm0"); + asm volatile("sha1msg2 0x12345678(%rax), %xmm0"); + asm volatile("sha1msg2 0x12345678(%rbp), %xmm0"); + asm volatile("sha1msg2 0x12345678(%rcx,%rax,1), %xmm0"); + asm volatile("sha1msg2 0x12345678(%rbp,%rax,1), %xmm0"); + asm volatile("sha1msg2 0x12345678(%rax,%rcx,1), %xmm0"); + asm volatile("sha1msg2 0x12345678(%rax,%rcx,8), %xmm0"); + asm volatile("sha1msg2 0x12345678(%rax,%rcx,8), %xmm15"); + + /* sha256rnds2 <XMM0>, xmm2/m128, xmm1 */ + /* Note sha256rnds2 has an implicit operand 'xmm0' */ + + asm volatile("sha256rnds2 %xmm4, %xmm1"); + asm volatile("sha256rnds2 %xmm7, %xmm2"); + asm volatile("sha256rnds2 %xmm8, %xmm1"); + asm volatile("sha256rnds2 %xmm7, %xmm8"); + asm volatile("sha256rnds2 %xmm15, %xmm8"); + asm volatile("sha256rnds2 (%rax), %xmm1"); + asm volatile("sha256rnds2 (%r8), %xmm1"); + asm volatile("sha256rnds2 (0x12345678), %xmm1"); + asm volatile("sha256rnds2 (%rax), %xmm3"); + asm volatile("sha256rnds2 (%rcx,%rax,1), %xmm1"); + asm volatile("sha256rnds2 0x12345678(,%rax,1), %xmm1"); + asm volatile("sha256rnds2 (%rax,%rcx,1), %xmm1"); + asm volatile("sha256rnds2 (%rax,%rcx,8), %xmm1"); + asm volatile("sha256rnds2 0x12(%rax), %xmm1"); + asm volatile("sha256rnds2 0x12(%rbp), %xmm1"); + asm volatile("sha256rnds2 0x12(%rcx,%rax,1), %xmm1"); + asm volatile("sha256rnds2 0x12(%rbp,%rax,1), %xmm1"); + asm volatile("sha256rnds2 0x12(%rax,%rcx,1), %xmm1"); + asm volatile("sha256rnds2 0x12(%rax,%rcx,8), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%rax), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%rbp), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%rcx,%rax,1), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%rbp,%rax,1), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%rax,%rcx,1), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%rax,%rcx,8), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%rax,%rcx,8), %xmm15"); + + /* sha256msg1 xmm2/m128, xmm1 */ + + asm volatile("sha256msg1 %xmm1, %xmm0"); + asm volatile("sha256msg1 %xmm7, %xmm2"); + asm volatile("sha256msg1 %xmm8, %xmm0"); + asm volatile("sha256msg1 %xmm7, %xmm8"); + asm volatile("sha256msg1 %xmm15, %xmm8"); + asm volatile("sha256msg1 (%rax), %xmm0"); + asm volatile("sha256msg1 (%r8), %xmm0"); + asm volatile("sha256msg1 (0x12345678), %xmm0"); + asm volatile("sha256msg1 (%rax), %xmm3"); + asm volatile("sha256msg1 (%rcx,%rax,1), %xmm0"); + asm volatile("sha256msg1 0x12345678(,%rax,1), %xmm0"); + asm volatile("sha256msg1 (%rax,%rcx,1), %xmm0"); + asm volatile("sha256msg1 (%rax,%rcx,8), %xmm0"); + asm volatile("sha256msg1 0x12(%rax), %xmm0"); + asm volatile("sha256msg1 0x12(%rbp), %xmm0"); + asm volatile("sha256msg1 0x12(%rcx,%rax,1), %xmm0"); + asm volatile("sha256msg1 0x12(%rbp,%rax,1), %xmm0"); + asm volatile("sha256msg1 0x12(%rax,%rcx,1), %xmm0"); + asm volatile("sha256msg1 0x12(%rax,%rcx,8), %xmm0"); + asm volatile("sha256msg1 0x12345678(%rax), %xmm0"); + asm volatile("sha256msg1 0x12345678(%rbp), %xmm0"); + asm volatile("sha256msg1 0x12345678(%rcx,%rax,1), %xmm0"); + asm volatile("sha256msg1 0x12345678(%rbp,%rax,1), %xmm0"); + asm volatile("sha256msg1 0x12345678(%rax,%rcx,1), %xmm0"); + asm volatile("sha256msg1 0x12345678(%rax,%rcx,8), %xmm0"); + asm volatile("sha256msg1 0x12345678(%rax,%rcx,8), %xmm15"); + + /* sha256msg2 xmm2/m128, xmm1 */ + + asm volatile("sha256msg2 %xmm1, %xmm0"); + asm volatile("sha256msg2 %xmm7, %xmm2"); + asm volatile("sha256msg2 %xmm8, %xmm0"); + asm volatile("sha256msg2 %xmm7, %xmm8"); + asm volatile("sha256msg2 %xmm15, %xmm8"); + asm volatile("sha256msg2 (%rax), %xmm0"); + asm volatile("sha256msg2 (%r8), %xmm0"); + asm volatile("sha256msg2 (0x12345678), %xmm0"); + asm volatile("sha256msg2 (%rax), %xmm3"); + asm volatile("sha256msg2 (%rcx,%rax,1), %xmm0"); + asm volatile("sha256msg2 0x12345678(,%rax,1), %xmm0"); + asm volatile("sha256msg2 (%rax,%rcx,1), %xmm0"); + asm volatile("sha256msg2 (%rax,%rcx,8), %xmm0"); + asm volatile("sha256msg2 0x12(%rax), %xmm0"); + asm volatile("sha256msg2 0x12(%rbp), %xmm0"); + asm volatile("sha256msg2 0x12(%rcx,%rax,1), %xmm0"); + asm volatile("sha256msg2 0x12(%rbp,%rax,1), %xmm0"); + asm volatile("sha256msg2 0x12(%rax,%rcx,1), %xmm0"); + asm volatile("sha256msg2 0x12(%rax,%rcx,8), %xmm0"); + asm volatile("sha256msg2 0x12345678(%rax), %xmm0"); + asm volatile("sha256msg2 0x12345678(%rbp), %xmm0"); + asm volatile("sha256msg2 0x12345678(%rcx,%rax,1), %xmm0"); + asm volatile("sha256msg2 0x12345678(%rbp,%rax,1), %xmm0"); + asm volatile("sha256msg2 0x12345678(%rax,%rcx,1), %xmm0"); + asm volatile("sha256msg2 0x12345678(%rax,%rcx,8), %xmm0"); + asm volatile("sha256msg2 0x12345678(%rax,%rcx,8), %xmm15"); + + /* clflushopt m8 */ + + asm volatile("clflushopt (%rax)"); + asm volatile("clflushopt (%r8)"); + asm volatile("clflushopt (0x12345678)"); + asm volatile("clflushopt 0x12345678(%rax,%rcx,8)"); + asm volatile("clflushopt 0x12345678(%r8,%rcx,8)"); + /* Also check instructions in the same group encoding as clflushopt */ + asm volatile("clflush (%rax)"); + asm volatile("clflush (%r8)"); + asm volatile("sfence"); + + /* clwb m8 */ + + asm volatile("clwb (%rax)"); + asm volatile("clwb (%r8)"); + asm volatile("clwb (0x12345678)"); + asm volatile("clwb 0x12345678(%rax,%rcx,8)"); + asm volatile("clwb 0x12345678(%r8,%rcx,8)"); + /* Also check instructions in the same group encoding as clwb */ + asm volatile("xsaveopt (%rax)"); + asm volatile("xsaveopt (%r8)"); + asm volatile("mfence"); + + /* xsavec mem */ + + asm volatile("xsavec (%rax)"); + asm volatile("xsavec (%r8)"); + asm volatile("xsavec (0x12345678)"); + asm volatile("xsavec 0x12345678(%rax,%rcx,8)"); + asm volatile("xsavec 0x12345678(%r8,%rcx,8)"); + + /* xsaves mem */ + + asm volatile("xsaves (%rax)"); + asm volatile("xsaves (%r8)"); + asm volatile("xsaves (0x12345678)"); + asm volatile("xsaves 0x12345678(%rax,%rcx,8)"); + asm volatile("xsaves 0x12345678(%r8,%rcx,8)"); + + /* xrstors mem */ + + asm volatile("xrstors (%rax)"); + asm volatile("xrstors (%r8)"); + asm volatile("xrstors (0x12345678)"); + asm volatile("xrstors 0x12345678(%rax,%rcx,8)"); + asm volatile("xrstors 0x12345678(%r8,%rcx,8)"); + +#else /* #ifdef __x86_64__ */ + + /* bndmk m32, bnd */ + + asm volatile("bndmk (%eax), %bnd0"); + asm volatile("bndmk (0x12345678), %bnd0"); + asm volatile("bndmk (%eax), %bnd3"); + asm volatile("bndmk (%ecx,%eax,1), %bnd0"); + asm volatile("bndmk 0x12345678(,%eax,1), %bnd0"); + asm volatile("bndmk (%eax,%ecx,1), %bnd0"); + asm volatile("bndmk (%eax,%ecx,8), %bnd0"); + asm volatile("bndmk 0x12(%eax), %bnd0"); + asm volatile("bndmk 0x12(%ebp), %bnd0"); + asm volatile("bndmk 0x12(%ecx,%eax,1), %bnd0"); + asm volatile("bndmk 0x12(%ebp,%eax,1), %bnd0"); + asm volatile("bndmk 0x12(%eax,%ecx,1), %bnd0"); + asm volatile("bndmk 0x12(%eax,%ecx,8), %bnd0"); + asm volatile("bndmk 0x12345678(%eax), %bnd0"); + asm volatile("bndmk 0x12345678(%ebp), %bnd0"); + asm volatile("bndmk 0x12345678(%ecx,%eax,1), %bnd0"); + asm volatile("bndmk 0x12345678(%ebp,%eax,1), %bnd0"); + asm volatile("bndmk 0x12345678(%eax,%ecx,1), %bnd0"); + asm volatile("bndmk 0x12345678(%eax,%ecx,8), %bnd0"); + + /* bndcl r/m32, bnd */ + + asm volatile("bndcl (%eax), %bnd0"); + asm volatile("bndcl (0x12345678), %bnd0"); + asm volatile("bndcl (%eax), %bnd3"); + asm volatile("bndcl (%ecx,%eax,1), %bnd0"); + asm volatile("bndcl 0x12345678(,%eax,1), %bnd0"); + asm volatile("bndcl (%eax,%ecx,1), %bnd0"); + asm volatile("bndcl (%eax,%ecx,8), %bnd0"); + asm volatile("bndcl 0x12(%eax), %bnd0"); + asm volatile("bndcl 0x12(%ebp), %bnd0"); + asm volatile("bndcl 0x12(%ecx,%eax,1), %bnd0"); + asm volatile("bndcl 0x12(%ebp,%eax,1), %bnd0"); + asm volatile("bndcl 0x12(%eax,%ecx,1), %bnd0"); + asm volatile("bndcl 0x12(%eax,%ecx,8), %bnd0"); + asm volatile("bndcl 0x12345678(%eax), %bnd0"); + asm volatile("bndcl 0x12345678(%ebp), %bnd0"); + asm volatile("bndcl 0x12345678(%ecx,%eax,1), %bnd0"); + asm volatile("bndcl 0x12345678(%ebp,%eax,1), %bnd0"); + asm volatile("bndcl 0x12345678(%eax,%ecx,1), %bnd0"); + asm volatile("bndcl 0x12345678(%eax,%ecx,8), %bnd0"); + asm volatile("bndcl %eax, %bnd0"); + + /* bndcu r/m32, bnd */ + + asm volatile("bndcu (%eax), %bnd0"); + asm volatile("bndcu (0x12345678), %bnd0"); + asm volatile("bndcu (%eax), %bnd3"); + asm volatile("bndcu (%ecx,%eax,1), %bnd0"); + asm volatile("bndcu 0x12345678(,%eax,1), %bnd0"); + asm volatile("bndcu (%eax,%ecx,1), %bnd0"); + asm volatile("bndcu (%eax,%ecx,8), %bnd0"); + asm volatile("bndcu 0x12(%eax), %bnd0"); + asm volatile("bndcu 0x12(%ebp), %bnd0"); + asm volatile("bndcu 0x12(%ecx,%eax,1), %bnd0"); + asm volatile("bndcu 0x12(%ebp,%eax,1), %bnd0"); + asm volatile("bndcu 0x12(%eax,%ecx,1), %bnd0"); + asm volatile("bndcu 0x12(%eax,%ecx,8), %bnd0"); + asm volatile("bndcu 0x12345678(%eax), %bnd0"); + asm volatile("bndcu 0x12345678(%ebp), %bnd0"); + asm volatile("bndcu 0x12345678(%ecx,%eax,1), %bnd0"); + asm volatile("bndcu 0x12345678(%ebp,%eax,1), %bnd0"); + asm volatile("bndcu 0x12345678(%eax,%ecx,1), %bnd0"); + asm volatile("bndcu 0x12345678(%eax,%ecx,8), %bnd0"); + asm volatile("bndcu %eax, %bnd0"); + + /* bndcn r/m32, bnd */ + + asm volatile("bndcn (%eax), %bnd0"); + asm volatile("bndcn (0x12345678), %bnd0"); + asm volatile("bndcn (%eax), %bnd3"); + asm volatile("bndcn (%ecx,%eax,1), %bnd0"); + asm volatile("bndcn 0x12345678(,%eax,1), %bnd0"); + asm volatile("bndcn (%eax,%ecx,1), %bnd0"); + asm volatile("bndcn (%eax,%ecx,8), %bnd0"); + asm volatile("bndcn 0x12(%eax), %bnd0"); + asm volatile("bndcn 0x12(%ebp), %bnd0"); + asm volatile("bndcn 0x12(%ecx,%eax,1), %bnd0"); + asm volatile("bndcn 0x12(%ebp,%eax,1), %bnd0"); + asm volatile("bndcn 0x12(%eax,%ecx,1), %bnd0"); + asm volatile("bndcn 0x12(%eax,%ecx,8), %bnd0"); + asm volatile("bndcn 0x12345678(%eax), %bnd0"); + asm volatile("bndcn 0x12345678(%ebp), %bnd0"); + asm volatile("bndcn 0x12345678(%ecx,%eax,1), %bnd0"); + asm volatile("bndcn 0x12345678(%ebp,%eax,1), %bnd0"); + asm volatile("bndcn 0x12345678(%eax,%ecx,1), %bnd0"); + asm volatile("bndcn 0x12345678(%eax,%ecx,8), %bnd0"); + asm volatile("bndcn %eax, %bnd0"); + + /* bndmov m64, bnd */ + + asm volatile("bndmov (%eax), %bnd0"); + asm volatile("bndmov (0x12345678), %bnd0"); + asm volatile("bndmov (%eax), %bnd3"); + asm volatile("bndmov (%ecx,%eax,1), %bnd0"); + asm volatile("bndmov 0x12345678(,%eax,1), %bnd0"); + asm volatile("bndmov (%eax,%ecx,1), %bnd0"); + asm volatile("bndmov (%eax,%ecx,8), %bnd0"); + asm volatile("bndmov 0x12(%eax), %bnd0"); + asm volatile("bndmov 0x12(%ebp), %bnd0"); + asm volatile("bndmov 0x12(%ecx,%eax,1), %bnd0"); + asm volatile("bndmov 0x12(%ebp,%eax,1), %bnd0"); + asm volatile("bndmov 0x12(%eax,%ecx,1), %bnd0"); + asm volatile("bndmov 0x12(%eax,%ecx,8), %bnd0"); + asm volatile("bndmov 0x12345678(%eax), %bnd0"); + asm volatile("bndmov 0x12345678(%ebp), %bnd0"); + asm volatile("bndmov 0x12345678(%ecx,%eax,1), %bnd0"); + asm volatile("bndmov 0x12345678(%ebp,%eax,1), %bnd0"); + asm volatile("bndmov 0x12345678(%eax,%ecx,1), %bnd0"); + asm volatile("bndmov 0x12345678(%eax,%ecx,8), %bnd0"); + + /* bndmov bnd, m64 */ + + asm volatile("bndmov %bnd0, (%eax)"); + asm volatile("bndmov %bnd0, (0x12345678)"); + asm volatile("bndmov %bnd3, (%eax)"); + asm volatile("bndmov %bnd0, (%ecx,%eax,1)"); + asm volatile("bndmov %bnd0, 0x12345678(,%eax,1)"); + asm volatile("bndmov %bnd0, (%eax,%ecx,1)"); + asm volatile("bndmov %bnd0, (%eax,%ecx,8)"); + asm volatile("bndmov %bnd0, 0x12(%eax)"); + asm volatile("bndmov %bnd0, 0x12(%ebp)"); + asm volatile("bndmov %bnd0, 0x12(%ecx,%eax,1)"); + asm volatile("bndmov %bnd0, 0x12(%ebp,%eax,1)"); + asm volatile("bndmov %bnd0, 0x12(%eax,%ecx,1)"); + asm volatile("bndmov %bnd0, 0x12(%eax,%ecx,8)"); + asm volatile("bndmov %bnd0, 0x12345678(%eax)"); + asm volatile("bndmov %bnd0, 0x12345678(%ebp)"); + asm volatile("bndmov %bnd0, 0x12345678(%ecx,%eax,1)"); + asm volatile("bndmov %bnd0, 0x12345678(%ebp,%eax,1)"); + asm volatile("bndmov %bnd0, 0x12345678(%eax,%ecx,1)"); + asm volatile("bndmov %bnd0, 0x12345678(%eax,%ecx,8)"); + + /* bndmov bnd2, bnd1 */ + + asm volatile("bndmov %bnd0, %bnd1"); + asm volatile("bndmov %bnd1, %bnd0"); + + /* bndldx mib, bnd */ + + asm volatile("bndldx (%eax), %bnd0"); + asm volatile("bndldx (0x12345678), %bnd0"); + asm volatile("bndldx (%eax), %bnd3"); + asm volatile("bndldx (%ecx,%eax,1), %bnd0"); + asm volatile("bndldx 0x12345678(,%eax,1), %bnd0"); + asm volatile("bndldx (%eax,%ecx,1), %bnd0"); + asm volatile("bndldx 0x12(%eax), %bnd0"); + asm volatile("bndldx 0x12(%ebp), %bnd0"); + asm volatile("bndldx 0x12(%ecx,%eax,1), %bnd0"); + asm volatile("bndldx 0x12(%ebp,%eax,1), %bnd0"); + asm volatile("bndldx 0x12(%eax,%ecx,1), %bnd0"); + asm volatile("bndldx 0x12345678(%eax), %bnd0"); + asm volatile("bndldx 0x12345678(%ebp), %bnd0"); + asm volatile("bndldx 0x12345678(%ecx,%eax,1), %bnd0"); + asm volatile("bndldx 0x12345678(%ebp,%eax,1), %bnd0"); + asm volatile("bndldx 0x12345678(%eax,%ecx,1), %bnd0"); + + /* bndstx bnd, mib */ + + asm volatile("bndstx %bnd0, (%eax)"); + asm volatile("bndstx %bnd0, (0x12345678)"); + asm volatile("bndstx %bnd3, (%eax)"); + asm volatile("bndstx %bnd0, (%ecx,%eax,1)"); + asm volatile("bndstx %bnd0, 0x12345678(,%eax,1)"); + asm volatile("bndstx %bnd0, (%eax,%ecx,1)"); + asm volatile("bndstx %bnd0, 0x12(%eax)"); + asm volatile("bndstx %bnd0, 0x12(%ebp)"); + asm volatile("bndstx %bnd0, 0x12(%ecx,%eax,1)"); + asm volatile("bndstx %bnd0, 0x12(%ebp,%eax,1)"); + asm volatile("bndstx %bnd0, 0x12(%eax,%ecx,1)"); + asm volatile("bndstx %bnd0, 0x12345678(%eax)"); + asm volatile("bndstx %bnd0, 0x12345678(%ebp)"); + asm volatile("bndstx %bnd0, 0x12345678(%ecx,%eax,1)"); + asm volatile("bndstx %bnd0, 0x12345678(%ebp,%eax,1)"); + asm volatile("bndstx %bnd0, 0x12345678(%eax,%ecx,1)"); + + /* bnd prefix on call, ret, jmp and all jcc */ + + asm volatile("bnd call label1"); /* Expecting: call unconditional 0xfffffffc */ + asm volatile("bnd call *(%eax)"); /* Expecting: call indirect 0 */ + asm volatile("bnd ret"); /* Expecting: ret indirect 0 */ + asm volatile("bnd jmp label1"); /* Expecting: jmp unconditional 0xfffffffc */ + asm volatile("bnd jmp label1"); /* Expecting: jmp unconditional 0xfffffffc */ + asm volatile("bnd jmp *(%ecx)"); /* Expecting: jmp indirect 0 */ + asm volatile("bnd jne label1"); /* Expecting: jcc conditional 0xfffffffc */ + + /* sha1rnds4 imm8, xmm2/m128, xmm1 */ + + asm volatile("sha1rnds4 $0x0, %xmm1, %xmm0"); + asm volatile("sha1rnds4 $0x91, %xmm7, %xmm2"); + asm volatile("sha1rnds4 $0x91, (%eax), %xmm0"); + asm volatile("sha1rnds4 $0x91, (0x12345678), %xmm0"); + asm volatile("sha1rnds4 $0x91, (%eax), %xmm3"); + asm volatile("sha1rnds4 $0x91, (%ecx,%eax,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(,%eax,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, (%eax,%ecx,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, (%eax,%ecx,8), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12(%eax), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12(%ebp), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12(%ecx,%eax,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12(%ebp,%eax,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12(%eax,%ecx,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12(%eax,%ecx,8), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%eax), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%ebp), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%ecx,%eax,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%ebp,%eax,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%eax,%ecx,1), %xmm0"); + asm volatile("sha1rnds4 $0x91, 0x12345678(%eax,%ecx,8), %xmm0"); + + /* sha1nexte xmm2/m128, xmm1 */ + + asm volatile("sha1nexte %xmm1, %xmm0"); + asm volatile("sha1nexte %xmm7, %xmm2"); + asm volatile("sha1nexte (%eax), %xmm0"); + asm volatile("sha1nexte (0x12345678), %xmm0"); + asm volatile("sha1nexte (%eax), %xmm3"); + asm volatile("sha1nexte (%ecx,%eax,1), %xmm0"); + asm volatile("sha1nexte 0x12345678(,%eax,1), %xmm0"); + asm volatile("sha1nexte (%eax,%ecx,1), %xmm0"); + asm volatile("sha1nexte (%eax,%ecx,8), %xmm0"); + asm volatile("sha1nexte 0x12(%eax), %xmm0"); + asm volatile("sha1nexte 0x12(%ebp), %xmm0"); + asm volatile("sha1nexte 0x12(%ecx,%eax,1), %xmm0"); + asm volatile("sha1nexte 0x12(%ebp,%eax,1), %xmm0"); + asm volatile("sha1nexte 0x12(%eax,%ecx,1), %xmm0"); + asm volatile("sha1nexte 0x12(%eax,%ecx,8), %xmm0"); + asm volatile("sha1nexte 0x12345678(%eax), %xmm0"); + asm volatile("sha1nexte 0x12345678(%ebp), %xmm0"); + asm volatile("sha1nexte 0x12345678(%ecx,%eax,1), %xmm0"); + asm volatile("sha1nexte 0x12345678(%ebp,%eax,1), %xmm0"); + asm volatile("sha1nexte 0x12345678(%eax,%ecx,1), %xmm0"); + asm volatile("sha1nexte 0x12345678(%eax,%ecx,8), %xmm0"); + + /* sha1msg1 xmm2/m128, xmm1 */ + + asm volatile("sha1msg1 %xmm1, %xmm0"); + asm volatile("sha1msg1 %xmm7, %xmm2"); + asm volatile("sha1msg1 (%eax), %xmm0"); + asm volatile("sha1msg1 (0x12345678), %xmm0"); + asm volatile("sha1msg1 (%eax), %xmm3"); + asm volatile("sha1msg1 (%ecx,%eax,1), %xmm0"); + asm volatile("sha1msg1 0x12345678(,%eax,1), %xmm0"); + asm volatile("sha1msg1 (%eax,%ecx,1), %xmm0"); + asm volatile("sha1msg1 (%eax,%ecx,8), %xmm0"); + asm volatile("sha1msg1 0x12(%eax), %xmm0"); + asm volatile("sha1msg1 0x12(%ebp), %xmm0"); + asm volatile("sha1msg1 0x12(%ecx,%eax,1), %xmm0"); + asm volatile("sha1msg1 0x12(%ebp,%eax,1), %xmm0"); + asm volatile("sha1msg1 0x12(%eax,%ecx,1), %xmm0"); + asm volatile("sha1msg1 0x12(%eax,%ecx,8), %xmm0"); + asm volatile("sha1msg1 0x12345678(%eax), %xmm0"); + asm volatile("sha1msg1 0x12345678(%ebp), %xmm0"); + asm volatile("sha1msg1 0x12345678(%ecx,%eax,1), %xmm0"); + asm volatile("sha1msg1 0x12345678(%ebp,%eax,1), %xmm0"); + asm volatile("sha1msg1 0x12345678(%eax,%ecx,1), %xmm0"); + asm volatile("sha1msg1 0x12345678(%eax,%ecx,8), %xmm0"); + + /* sha1msg2 xmm2/m128, xmm1 */ + + asm volatile("sha1msg2 %xmm1, %xmm0"); + asm volatile("sha1msg2 %xmm7, %xmm2"); + asm volatile("sha1msg2 (%eax), %xmm0"); + asm volatile("sha1msg2 (0x12345678), %xmm0"); + asm volatile("sha1msg2 (%eax), %xmm3"); + asm volatile("sha1msg2 (%ecx,%eax,1), %xmm0"); + asm volatile("sha1msg2 0x12345678(,%eax,1), %xmm0"); + asm volatile("sha1msg2 (%eax,%ecx,1), %xmm0"); + asm volatile("sha1msg2 (%eax,%ecx,8), %xmm0"); + asm volatile("sha1msg2 0x12(%eax), %xmm0"); + asm volatile("sha1msg2 0x12(%ebp), %xmm0"); + asm volatile("sha1msg2 0x12(%ecx,%eax,1), %xmm0"); + asm volatile("sha1msg2 0x12(%ebp,%eax,1), %xmm0"); + asm volatile("sha1msg2 0x12(%eax,%ecx,1), %xmm0"); + asm volatile("sha1msg2 0x12(%eax,%ecx,8), %xmm0"); + asm volatile("sha1msg2 0x12345678(%eax), %xmm0"); + asm volatile("sha1msg2 0x12345678(%ebp), %xmm0"); + asm volatile("sha1msg2 0x12345678(%ecx,%eax,1), %xmm0"); + asm volatile("sha1msg2 0x12345678(%ebp,%eax,1), %xmm0"); + asm volatile("sha1msg2 0x12345678(%eax,%ecx,1), %xmm0"); + asm volatile("sha1msg2 0x12345678(%eax,%ecx,8), %xmm0"); + + /* sha256rnds2 <XMM0>, xmm2/m128, xmm1 */ + /* Note sha256rnds2 has an implicit operand 'xmm0' */ + + asm volatile("sha256rnds2 %xmm4, %xmm1"); + asm volatile("sha256rnds2 %xmm7, %xmm2"); + asm volatile("sha256rnds2 (%eax), %xmm1"); + asm volatile("sha256rnds2 (0x12345678), %xmm1"); + asm volatile("sha256rnds2 (%eax), %xmm3"); + asm volatile("sha256rnds2 (%ecx,%eax,1), %xmm1"); + asm volatile("sha256rnds2 0x12345678(,%eax,1), %xmm1"); + asm volatile("sha256rnds2 (%eax,%ecx,1), %xmm1"); + asm volatile("sha256rnds2 (%eax,%ecx,8), %xmm1"); + asm volatile("sha256rnds2 0x12(%eax), %xmm1"); + asm volatile("sha256rnds2 0x12(%ebp), %xmm1"); + asm volatile("sha256rnds2 0x12(%ecx,%eax,1), %xmm1"); + asm volatile("sha256rnds2 0x12(%ebp,%eax,1), %xmm1"); + asm volatile("sha256rnds2 0x12(%eax,%ecx,1), %xmm1"); + asm volatile("sha256rnds2 0x12(%eax,%ecx,8), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%eax), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%ebp), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%ecx,%eax,1), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%ebp,%eax,1), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%eax,%ecx,1), %xmm1"); + asm volatile("sha256rnds2 0x12345678(%eax,%ecx,8), %xmm1"); + + /* sha256msg1 xmm2/m128, xmm1 */ + + asm volatile("sha256msg1 %xmm1, %xmm0"); + asm volatile("sha256msg1 %xmm7, %xmm2"); + asm volatile("sha256msg1 (%eax), %xmm0"); + asm volatile("sha256msg1 (0x12345678), %xmm0"); + asm volatile("sha256msg1 (%eax), %xmm3"); + asm volatile("sha256msg1 (%ecx,%eax,1), %xmm0"); + asm volatile("sha256msg1 0x12345678(,%eax,1), %xmm0"); + asm volatile("sha256msg1 (%eax,%ecx,1), %xmm0"); + asm volatile("sha256msg1 (%eax,%ecx,8), %xmm0"); + asm volatile("sha256msg1 0x12(%eax), %xmm0"); + asm volatile("sha256msg1 0x12(%ebp), %xmm0"); + asm volatile("sha256msg1 0x12(%ecx,%eax,1), %xmm0"); + asm volatile("sha256msg1 0x12(%ebp,%eax,1), %xmm0"); + asm volatile("sha256msg1 0x12(%eax,%ecx,1), %xmm0"); + asm volatile("sha256msg1 0x12(%eax,%ecx,8), %xmm0"); + asm volatile("sha256msg1 0x12345678(%eax), %xmm0"); + asm volatile("sha256msg1 0x12345678(%ebp), %xmm0"); + asm volatile("sha256msg1 0x12345678(%ecx,%eax,1), %xmm0"); + asm volatile("sha256msg1 0x12345678(%ebp,%eax,1), %xmm0"); + asm volatile("sha256msg1 0x12345678(%eax,%ecx,1), %xmm0"); + asm volatile("sha256msg1 0x12345678(%eax,%ecx,8), %xmm0"); + + /* sha256msg2 xmm2/m128, xmm1 */ + + asm volatile("sha256msg2 %xmm1, %xmm0"); + asm volatile("sha256msg2 %xmm7, %xmm2"); + asm volatile("sha256msg2 (%eax), %xmm0"); + asm volatile("sha256msg2 (0x12345678), %xmm0"); + asm volatile("sha256msg2 (%eax), %xmm3"); + asm volatile("sha256msg2 (%ecx,%eax,1), %xmm0"); + asm volatile("sha256msg2 0x12345678(,%eax,1), %xmm0"); + asm volatile("sha256msg2 (%eax,%ecx,1), %xmm0"); + asm volatile("sha256msg2 (%eax,%ecx,8), %xmm0"); + asm volatile("sha256msg2 0x12(%eax), %xmm0"); + asm volatile("sha256msg2 0x12(%ebp), %xmm0"); + asm volatile("sha256msg2 0x12(%ecx,%eax,1), %xmm0"); + asm volatile("sha256msg2 0x12(%ebp,%eax,1), %xmm0"); + asm volatile("sha256msg2 0x12(%eax,%ecx,1), %xmm0"); + asm volatile("sha256msg2 0x12(%eax,%ecx,8), %xmm0"); + asm volatile("sha256msg2 0x12345678(%eax), %xmm0"); + asm volatile("sha256msg2 0x12345678(%ebp), %xmm0"); + asm volatile("sha256msg2 0x12345678(%ecx,%eax,1), %xmm0"); + asm volatile("sha256msg2 0x12345678(%ebp,%eax,1), %xmm0"); + asm volatile("sha256msg2 0x12345678(%eax,%ecx,1), %xmm0"); + asm volatile("sha256msg2 0x12345678(%eax,%ecx,8), %xmm0"); + + /* clflushopt m8 */ + + asm volatile("clflushopt (%eax)"); + asm volatile("clflushopt (0x12345678)"); + asm volatile("clflushopt 0x12345678(%eax,%ecx,8)"); + /* Also check instructions in the same group encoding as clflushopt */ + asm volatile("clflush (%eax)"); + asm volatile("sfence"); + + /* clwb m8 */ + + asm volatile("clwb (%eax)"); + asm volatile("clwb (0x12345678)"); + asm volatile("clwb 0x12345678(%eax,%ecx,8)"); + /* Also check instructions in the same group encoding as clwb */ + asm volatile("xsaveopt (%eax)"); + asm volatile("mfence"); + + /* xsavec mem */ + + asm volatile("xsavec (%eax)"); + asm volatile("xsavec (0x12345678)"); + asm volatile("xsavec 0x12345678(%eax,%ecx,8)"); + + /* xsaves mem */ + + asm volatile("xsaves (%eax)"); + asm volatile("xsaves (0x12345678)"); + asm volatile("xsaves 0x12345678(%eax,%ecx,8)"); + + /* xrstors mem */ + + asm volatile("xrstors (%eax)"); + asm volatile("xrstors (0x12345678)"); + asm volatile("xrstors 0x12345678(%eax,%ecx,8)"); + +#endif /* #ifndef __x86_64__ */ + + /* pcommit */ + + asm volatile("pcommit"); + + /* Following line is a marker for the awk script - do not change */ + asm volatile("rdtsc"); /* Stop here */ + + return 0; +} diff --git a/tools/perf/arch/x86/tests/insn-x86.c b/tools/perf/arch/x86/tests/insn-x86.c new file mode 100644 index 000000000..b6115dfd2 --- /dev/null +++ b/tools/perf/arch/x86/tests/insn-x86.c @@ -0,0 +1,185 @@ +#include <linux/types.h> + +#include "debug.h" +#include "tests/tests.h" +#include "arch-tests.h" + +#include "intel-pt-decoder/insn.h" +#include "intel-pt-decoder/intel-pt-insn-decoder.h" + +struct test_data { + u8 data[MAX_INSN_SIZE]; + int expected_length; + int expected_rel; + const char *expected_op_str; + const char *expected_branch_str; + const char *asm_rep; +}; + +struct test_data test_data_32[] = { +#include "insn-x86-dat-32.c" + {{0x0f, 0x01, 0xee}, 3, 0, NULL, NULL, "0f 01 ee \trdpkru"}, + {{0x0f, 0x01, 0xef}, 3, 0, NULL, NULL, "0f 01 ef \twrpkru"}, + {{0}, 0, 0, NULL, NULL, NULL}, +}; + +struct test_data test_data_64[] = { +#include "insn-x86-dat-64.c" + {{0x0f, 0x01, 0xee}, 3, 0, NULL, NULL, "0f 01 ee \trdpkru"}, + {{0x0f, 0x01, 0xef}, 3, 0, NULL, NULL, "0f 01 ef \twrpkru"}, + {{0}, 0, 0, NULL, NULL, NULL}, +}; + +static int get_op(const char *op_str) +{ + struct val_data { + const char *name; + int val; + } vals[] = { + {"other", INTEL_PT_OP_OTHER}, + {"call", INTEL_PT_OP_CALL}, + {"ret", INTEL_PT_OP_RET}, + {"jcc", INTEL_PT_OP_JCC}, + {"jmp", INTEL_PT_OP_JMP}, + {"loop", INTEL_PT_OP_LOOP}, + {"iret", INTEL_PT_OP_IRET}, + {"int", INTEL_PT_OP_INT}, + {"syscall", INTEL_PT_OP_SYSCALL}, + {"sysret", INTEL_PT_OP_SYSRET}, + {NULL, 0}, + }; + struct val_data *val; + + if (!op_str || !strlen(op_str)) + return 0; + + for (val = vals; val->name; val++) { + if (!strcmp(val->name, op_str)) + return val->val; + } + + pr_debug("Failed to get op\n"); + + return -1; +} + +static int get_branch(const char *branch_str) +{ + struct val_data { + const char *name; + int val; + } vals[] = { + {"no_branch", INTEL_PT_BR_NO_BRANCH}, + {"indirect", INTEL_PT_BR_INDIRECT}, + {"conditional", INTEL_PT_BR_CONDITIONAL}, + {"unconditional", INTEL_PT_BR_UNCONDITIONAL}, + {NULL, 0}, + }; + struct val_data *val; + + if (!branch_str || !strlen(branch_str)) + return 0; + + for (val = vals; val->name; val++) { + if (!strcmp(val->name, branch_str)) + return val->val; + } + + pr_debug("Failed to get branch\n"); + + return -1; +} + +static int test_data_item(struct test_data *dat, int x86_64) +{ + struct intel_pt_insn intel_pt_insn; + struct insn insn; + int op, branch; + + insn_init(&insn, dat->data, MAX_INSN_SIZE, x86_64); + insn_get_length(&insn); + + if (!insn_complete(&insn)) { + pr_debug("Failed to decode: %s\n", dat->asm_rep); + return -1; + } + + if (insn.length != dat->expected_length) { + pr_debug("Failed to decode length (%d vs expected %d): %s\n", + insn.length, dat->expected_length, dat->asm_rep); + return -1; + } + + op = get_op(dat->expected_op_str); + branch = get_branch(dat->expected_branch_str); + + if (intel_pt_get_insn(dat->data, MAX_INSN_SIZE, x86_64, &intel_pt_insn)) { + pr_debug("Intel PT failed to decode: %s\n", dat->asm_rep); + return -1; + } + + if ((int)intel_pt_insn.op != op) { + pr_debug("Failed to decode 'op' value (%d vs expected %d): %s\n", + intel_pt_insn.op, op, dat->asm_rep); + return -1; + } + + if ((int)intel_pt_insn.branch != branch) { + pr_debug("Failed to decode 'branch' value (%d vs expected %d): %s\n", + intel_pt_insn.branch, branch, dat->asm_rep); + return -1; + } + + if (intel_pt_insn.rel != dat->expected_rel) { + pr_debug("Failed to decode 'rel' value (%#x vs expected %#x): %s\n", + intel_pt_insn.rel, dat->expected_rel, dat->asm_rep); + return -1; + } + + pr_debug("Decoded ok: %s\n", dat->asm_rep); + + return 0; +} + +static int test_data_set(struct test_data *dat_set, int x86_64) +{ + struct test_data *dat; + int ret = 0; + + for (dat = dat_set; dat->expected_length; dat++) { + if (test_data_item(dat, x86_64)) + ret = -1; + } + + return ret; +} + +/** + * test__insn_x86 - test x86 instruction decoder - new instructions. + * + * This function implements a test that decodes a selection of instructions and + * checks the results. The Intel PT function that further categorizes + * instructions (i.e. intel_pt_get_insn()) is also checked. + * + * The instructions are originally in insn-x86-dat-src.c which has been + * processed by scripts gen-insn-x86-dat.sh and gen-insn-x86-dat.awk to produce + * insn-x86-dat-32.c and insn-x86-dat-64.c which are included into this program. + * i.e. to add new instructions to the test, edit insn-x86-dat-src.c, run the + * gen-insn-x86-dat.sh script, make perf, and then run the test. + * + * If the test passes %0 is returned, otherwise %-1 is returned. Use the + * verbose (-v) option to see all the instructions and whether or not they + * decoded successfuly. + */ +int test__insn_x86(void) +{ + int ret = 0; + + if (test_data_set(test_data_32, 0)) + ret = -1; + + if (test_data_set(test_data_64, 1)) + ret = -1; + + return ret; +} diff --git a/tools/perf/arch/x86/tests/intel-cqm.c b/tools/perf/arch/x86/tests/intel-cqm.c new file mode 100644 index 000000000..d28c1b6a3 --- /dev/null +++ b/tools/perf/arch/x86/tests/intel-cqm.c @@ -0,0 +1,124 @@ +#include "tests/tests.h" +#include "perf.h" +#include "cloexec.h" +#include "debug.h" +#include "evlist.h" +#include "evsel.h" +#include "arch-tests.h" + +#include <sys/mman.h> +#include <string.h> + +static pid_t spawn(void) +{ + pid_t pid; + + pid = fork(); + if (pid) + return pid; + + while(1); + sleep(5); + return 0; +} + +/* + * Create an event group that contains both a sampled hardware + * (cpu-cycles) and software (intel_cqm/llc_occupancy/) event. We then + * wait for the hardware perf counter to overflow and generate a PMI, + * which triggers an event read for both of the events in the group. + * + * Since reading Intel CQM event counters requires sending SMP IPIs, the + * CQM pmu needs to handle the above situation gracefully, and return + * the last read counter value to avoid triggering a WARN_ON_ONCE() in + * smp_call_function_many() caused by sending IPIs from NMI context. + */ +int test__intel_cqm_count_nmi_context(void) +{ + struct perf_evlist *evlist = NULL; + struct perf_evsel *evsel = NULL; + struct perf_event_attr pe; + int i, fd[2], flag, ret; + size_t mmap_len; + void *event; + pid_t pid; + int err = TEST_FAIL; + + flag = perf_event_open_cloexec_flag(); + + evlist = perf_evlist__new(); + if (!evlist) { + pr_debug("perf_evlist__new failed\n"); + return TEST_FAIL; + } + + ret = parse_events(evlist, "intel_cqm/llc_occupancy/", NULL); + if (ret) { + pr_debug("parse_events failed\n"); + err = TEST_SKIP; + goto out; + } + + evsel = perf_evlist__first(evlist); + if (!evsel) { + pr_debug("perf_evlist__first failed\n"); + goto out; + } + + memset(&pe, 0, sizeof(pe)); + pe.size = sizeof(pe); + + pe.type = PERF_TYPE_HARDWARE; + pe.config = PERF_COUNT_HW_CPU_CYCLES; + pe.read_format = PERF_FORMAT_GROUP; + + pe.sample_period = 128; + pe.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_READ; + + pid = spawn(); + + fd[0] = sys_perf_event_open(&pe, pid, -1, -1, flag); + if (fd[0] < 0) { + pr_debug("failed to open event\n"); + goto out; + } + + memset(&pe, 0, sizeof(pe)); + pe.size = sizeof(pe); + + pe.type = evsel->attr.type; + pe.config = evsel->attr.config; + + fd[1] = sys_perf_event_open(&pe, pid, -1, fd[0], flag); + if (fd[1] < 0) { + pr_debug("failed to open event\n"); + goto out; + } + + /* + * Pick a power-of-two number of pages + 1 for the meta-data + * page (struct perf_event_mmap_page). See tools/perf/design.txt. + */ + mmap_len = page_size * 65; + + event = mmap(NULL, mmap_len, PROT_READ, MAP_SHARED, fd[0], 0); + if (event == (void *)(-1)) { + pr_debug("failed to mmap %d\n", errno); + goto out; + } + + sleep(1); + + err = TEST_OK; + + munmap(event, mmap_len); + + for (i = 0; i < 2; i++) + close(fd[i]); + + kill(pid, SIGKILL); + wait(NULL); +out: + perf_evlist__delete(evlist); + return err; +} diff --git a/tools/perf/tests/perf-time-to-tsc.c b/tools/perf/arch/x86/tests/perf-time-to-tsc.c index 5f49484f1..658cd200a 100644 --- a/tools/perf/tests/perf-time-to-tsc.c +++ b/tools/perf/arch/x86/tests/perf-time-to-tsc.c @@ -9,7 +9,9 @@ #include "thread_map.h" #include "cpumap.h" #include "tsc.h" -#include "tests.h" +#include "tests/tests.h" + +#include "arch-tests.h" #define CHECK__(x) { \ while ((x) < 0) { \ diff --git a/tools/perf/tests/rdpmc.c b/tools/perf/arch/x86/tests/rdpmc.c index d31f2c4d9..e7688214c 100644 --- a/tools/perf/tests/rdpmc.c +++ b/tools/perf/arch/x86/tests/rdpmc.c @@ -5,10 +5,9 @@ #include <linux/types.h> #include "perf.h" #include "debug.h" -#include "tests.h" +#include "tests/tests.h" #include "cloexec.h" - -#if defined(__x86_64__) || defined(__i386__) +#include "arch-tests.h" static u64 rdpmc(unsigned int counter) { @@ -173,5 +172,3 @@ int test__rdpmc(void) return 0; } - -#endif diff --git a/tools/perf/arch/x86/util/dwarf-regs.c b/tools/perf/arch/x86/util/dwarf-regs.c index a08de0a35..9223c164e 100644 --- a/tools/perf/arch/x86/util/dwarf-regs.c +++ b/tools/perf/arch/x86/util/dwarf-regs.c @@ -21,55 +21,109 @@ */ #include <stddef.h> +#include <errno.h> /* for EINVAL */ +#include <string.h> /* for strcmp */ +#include <linux/ptrace.h> /* for struct pt_regs */ +#include <linux/kernel.h> /* for offsetof */ #include <dwarf-regs.h> /* - * Generic dwarf analysis helpers + * See arch/x86/kernel/ptrace.c. + * Different from it: + * + * - Since struct pt_regs is defined differently for user and kernel, + * but we want to use 'ax, bx' instead of 'rax, rbx' (which is struct + * field name of user's pt_regs), we make REG_OFFSET_NAME to accept + * both string name and reg field name. + * + * - Since accessing x86_32's pt_regs from x86_64 building is difficult + * and vise versa, we simply fill offset with -1, so + * get_arch_regstr() still works but regs_query_register_offset() + * returns error. + * The only inconvenience caused by it now is that we are not allowed + * to generate BPF prologue for a x86_64 kernel if perf is built for + * x86_32. This is really a rare usecase. + * + * - Order is different from kernel's ptrace.c for get_arch_regstr(). Use + * the order defined by dwarf. */ -#define X86_32_MAX_REGS 8 -const char *x86_32_regs_table[X86_32_MAX_REGS] = { - "%ax", - "%cx", - "%dx", - "%bx", - "$stack", /* Stack address instead of %sp */ - "%bp", - "%si", - "%di", +struct pt_regs_offset { + const char *name; + int offset; +}; + +#define REG_OFFSET_END {.name = NULL, .offset = 0} + +#ifdef __x86_64__ +# define REG_OFFSET_NAME_64(n, r) {.name = n, .offset = offsetof(struct pt_regs, r)} +# define REG_OFFSET_NAME_32(n, r) {.name = n, .offset = -1} +#else +# define REG_OFFSET_NAME_64(n, r) {.name = n, .offset = -1} +# define REG_OFFSET_NAME_32(n, r) {.name = n, .offset = offsetof(struct pt_regs, r)} +#endif + +static const struct pt_regs_offset x86_32_regoffset_table[] = { + REG_OFFSET_NAME_32("%ax", eax), + REG_OFFSET_NAME_32("%cx", ecx), + REG_OFFSET_NAME_32("%dx", edx), + REG_OFFSET_NAME_32("%bx", ebx), + REG_OFFSET_NAME_32("$stack", esp), /* Stack address instead of %sp */ + REG_OFFSET_NAME_32("%bp", ebp), + REG_OFFSET_NAME_32("%si", esi), + REG_OFFSET_NAME_32("%di", edi), + REG_OFFSET_END, }; -#define X86_64_MAX_REGS 16 -const char *x86_64_regs_table[X86_64_MAX_REGS] = { - "%ax", - "%dx", - "%cx", - "%bx", - "%si", - "%di", - "%bp", - "%sp", - "%r8", - "%r9", - "%r10", - "%r11", - "%r12", - "%r13", - "%r14", - "%r15", +static const struct pt_regs_offset x86_64_regoffset_table[] = { + REG_OFFSET_NAME_64("%ax", rax), + REG_OFFSET_NAME_64("%dx", rdx), + REG_OFFSET_NAME_64("%cx", rcx), + REG_OFFSET_NAME_64("%bx", rbx), + REG_OFFSET_NAME_64("%si", rsi), + REG_OFFSET_NAME_64("%di", rdi), + REG_OFFSET_NAME_64("%bp", rbp), + REG_OFFSET_NAME_64("%sp", rsp), + REG_OFFSET_NAME_64("%r8", r8), + REG_OFFSET_NAME_64("%r9", r9), + REG_OFFSET_NAME_64("%r10", r10), + REG_OFFSET_NAME_64("%r11", r11), + REG_OFFSET_NAME_64("%r12", r12), + REG_OFFSET_NAME_64("%r13", r13), + REG_OFFSET_NAME_64("%r14", r14), + REG_OFFSET_NAME_64("%r15", r15), + REG_OFFSET_END, }; /* TODO: switching by dwarf address size */ #ifdef __x86_64__ -#define ARCH_MAX_REGS X86_64_MAX_REGS -#define arch_regs_table x86_64_regs_table +#define regoffset_table x86_64_regoffset_table #else -#define ARCH_MAX_REGS X86_32_MAX_REGS -#define arch_regs_table x86_32_regs_table +#define regoffset_table x86_32_regoffset_table #endif +/* Minus 1 for the ending REG_OFFSET_END */ +#define ARCH_MAX_REGS ((sizeof(regoffset_table) / sizeof(regoffset_table[0])) - 1) + /* Return architecture dependent register string (for kprobe-tracer) */ const char *get_arch_regstr(unsigned int n) { - return (n < ARCH_MAX_REGS) ? arch_regs_table[n] : NULL; + return (n < ARCH_MAX_REGS) ? regoffset_table[n].name : NULL; +} + +/* Reuse code from arch/x86/kernel/ptrace.c */ +/** + * regs_query_register_offset() - query register offset from its name + * @name: the name of a register + * + * regs_query_register_offset() returns the offset of a register in struct + * pt_regs from its name. If the name is invalid, this returns -EINVAL; + */ +int regs_query_register_offset(const char *name) +{ + const struct pt_regs_offset *roff; + for (roff = regoffset_table; roff->name != NULL; roff++) + if (!strcmp(roff->name, name)) + return roff->offset; + return -EINVAL; } diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c index 2ca10d796..b02af064f 100644 --- a/tools/perf/arch/x86/util/intel-pt.c +++ b/tools/perf/arch/x86/util/intel-pt.c @@ -624,13 +624,49 @@ static int intel_pt_recording_options(struct auxtrace_record *itr, * threads. */ if (have_timing_info && !cpu_map__empty(cpus)) { - err = intel_pt_track_switches(evlist); - if (err == -EPERM) - pr_debug2("Unable to select sched:sched_switch\n"); - else if (err) - return err; - else - ptr->have_sched_switch = 1; + if (perf_can_record_switch_events()) { + bool cpu_wide = !target__none(&opts->target) && + !target__has_task(&opts->target); + + if (!cpu_wide && perf_can_record_cpu_wide()) { + struct perf_evsel *switch_evsel; + + err = parse_events(evlist, "dummy:u", NULL); + if (err) + return err; + + switch_evsel = perf_evlist__last(evlist); + + switch_evsel->attr.freq = 0; + switch_evsel->attr.sample_period = 1; + switch_evsel->attr.context_switch = 1; + + switch_evsel->system_wide = true; + switch_evsel->no_aux_samples = true; + switch_evsel->immediate = true; + + perf_evsel__set_sample_bit(switch_evsel, TID); + perf_evsel__set_sample_bit(switch_evsel, TIME); + perf_evsel__set_sample_bit(switch_evsel, CPU); + + opts->record_switch_events = false; + ptr->have_sched_switch = 3; + } else { + opts->record_switch_events = true; + if (cpu_wide) + ptr->have_sched_switch = 3; + else + ptr->have_sched_switch = 2; + } + } else { + err = intel_pt_track_switches(evlist); + if (err == -EPERM) + pr_debug2("Unable to select sched:sched_switch\n"); + else if (err) + return err; + else + ptr->have_sched_switch = 1; + } } if (intel_pt_evsel) { @@ -663,8 +699,11 @@ static int intel_pt_recording_options(struct auxtrace_record *itr, tracking_evsel->attr.sample_period = 1; /* In per-cpu case, always need the time of mmap events etc */ - if (!cpu_map__empty(cpus)) + if (!cpu_map__empty(cpus)) { perf_evsel__set_sample_bit(tracking_evsel, TIME); + /* And the CPU for switch events */ + perf_evsel__set_sample_bit(tracking_evsel, CPU); + } } /* diff --git a/tools/perf/bench/Build b/tools/perf/bench/Build index 573e28896..60bf11943 100644 --- a/tools/perf/bench/Build +++ b/tools/perf/bench/Build @@ -1,6 +1,6 @@ perf-y += sched-messaging.o perf-y += sched-pipe.o -perf-y += mem-memcpy.o +perf-y += mem-functions.o perf-y += futex-hash.o perf-y += futex-wake.o perf-y += futex-wake-parallel.o diff --git a/tools/perf/bench/mem-functions.c b/tools/perf/bench/mem-functions.c new file mode 100644 index 000000000..9419b9442 --- /dev/null +++ b/tools/perf/bench/mem-functions.c @@ -0,0 +1,379 @@ +/* + * mem-memcpy.c + * + * Simple memcpy() and memset() benchmarks + * + * Written by Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> + */ + +#include "../perf.h" +#include "../util/util.h" +#include "../util/parse-options.h" +#include "../util/header.h" +#include "../util/cloexec.h" +#include "bench.h" +#include "mem-memcpy-arch.h" +#include "mem-memset-arch.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/time.h> +#include <errno.h> + +#define K 1024 + +static const char *size_str = "1MB"; +static const char *function_str = "all"; +static int nr_loops = 1; +static bool use_cycles; +static int cycles_fd; + +static const struct option options[] = { + OPT_STRING('s', "size", &size_str, "1MB", + "Specify the size of the memory buffers. " + "Available units: B, KB, MB, GB and TB (case insensitive)"), + + OPT_STRING('f', "function", &function_str, "all", + "Specify the function to run, \"all\" runs all available functions, \"help\" lists them"), + + OPT_INTEGER('l', "nr_loops", &nr_loops, + "Specify the number of loops to run. (default: 1)"), + + OPT_BOOLEAN('c', "cycles", &use_cycles, + "Use a cycles event instead of gettimeofday() to measure performance"), + + OPT_END() +}; + +typedef void *(*memcpy_t)(void *, const void *, size_t); +typedef void *(*memset_t)(void *, int, size_t); + +struct function { + const char *name; + const char *desc; + union { + memcpy_t memcpy; + memset_t memset; + } fn; +}; + +static struct perf_event_attr cycle_attr = { + .type = PERF_TYPE_HARDWARE, + .config = PERF_COUNT_HW_CPU_CYCLES +}; + +static void init_cycles(void) +{ + cycles_fd = sys_perf_event_open(&cycle_attr, getpid(), -1, -1, perf_event_open_cloexec_flag()); + + if (cycles_fd < 0 && errno == ENOSYS) + die("No CONFIG_PERF_EVENTS=y kernel support configured?\n"); + else + BUG_ON(cycles_fd < 0); +} + +static u64 get_cycles(void) +{ + int ret; + u64 clk; + + ret = read(cycles_fd, &clk, sizeof(u64)); + BUG_ON(ret != sizeof(u64)); + + return clk; +} + +static double timeval2double(struct timeval *ts) +{ + return (double)ts->tv_sec + (double)ts->tv_usec / (double)1000000; +} + +#define print_bps(x) do { \ + if (x < K) \ + printf(" %14lf bytes/sec\n", x); \ + else if (x < K * K) \ + printf(" %14lfd KB/sec\n", x / K); \ + else if (x < K * K * K) \ + printf(" %14lf MB/sec\n", x / K / K); \ + else \ + printf(" %14lf GB/sec\n", x / K / K / K); \ + } while (0) + +struct bench_mem_info { + const struct function *functions; + u64 (*do_cycles)(const struct function *r, size_t size); + double (*do_gettimeofday)(const struct function *r, size_t size); + const char *const *usage; +}; + +static void __bench_mem_function(struct bench_mem_info *info, int r_idx, size_t size, double size_total) +{ + const struct function *r = &info->functions[r_idx]; + double result_bps = 0.0; + u64 result_cycles = 0; + + printf("# function '%s' (%s)\n", r->name, r->desc); + + if (bench_format == BENCH_FORMAT_DEFAULT) + printf("# Copying %s bytes ...\n\n", size_str); + + if (use_cycles) { + result_cycles = info->do_cycles(r, size); + } else { + result_bps = info->do_gettimeofday(r, size); + } + + switch (bench_format) { + case BENCH_FORMAT_DEFAULT: + if (use_cycles) { + printf(" %14lf cycles/byte\n", (double)result_cycles/size_total); + } else { + print_bps(result_bps); + } + break; + + case BENCH_FORMAT_SIMPLE: + if (use_cycles) { + printf("%lf\n", (double)result_cycles/size_total); + } else { + printf("%lf\n", result_bps); + } + break; + + default: + BUG_ON(1); + break; + } +} + +static int bench_mem_common(int argc, const char **argv, struct bench_mem_info *info) +{ + int i; + size_t size; + double size_total; + + argc = parse_options(argc, argv, options, info->usage, 0); + + if (use_cycles) + init_cycles(); + + size = (size_t)perf_atoll((char *)size_str); + size_total = (double)size * nr_loops; + + if ((s64)size <= 0) { + fprintf(stderr, "Invalid size:%s\n", size_str); + return 1; + } + + if (!strncmp(function_str, "all", 3)) { + for (i = 0; info->functions[i].name; i++) + __bench_mem_function(info, i, size, size_total); + return 0; + } + + for (i = 0; info->functions[i].name; i++) { + if (!strcmp(info->functions[i].name, function_str)) + break; + } + if (!info->functions[i].name) { + if (strcmp(function_str, "help") && strcmp(function_str, "h")) + printf("Unknown function: %s\n", function_str); + printf("Available functions:\n"); + for (i = 0; info->functions[i].name; i++) { + printf("\t%s ... %s\n", + info->functions[i].name, info->functions[i].desc); + } + return 1; + } + + __bench_mem_function(info, i, size, size_total); + + return 0; +} + +static void memcpy_alloc_mem(void **dst, void **src, size_t size) +{ + *dst = zalloc(size); + if (!*dst) + die("memory allocation failed - maybe size is too large?\n"); + + *src = zalloc(size); + if (!*src) + die("memory allocation failed - maybe size is too large?\n"); + + /* Make sure to always prefault zero pages even if MMAP_THRESH is crossed: */ + memset(*src, 0, size); +} + +static u64 do_memcpy_cycles(const struct function *r, size_t size) +{ + u64 cycle_start = 0ULL, cycle_end = 0ULL; + void *src = NULL, *dst = NULL; + memcpy_t fn = r->fn.memcpy; + int i; + + memcpy_alloc_mem(&dst, &src, size); + + /* + * We prefault the freshly allocated memory range here, + * to not measure page fault overhead: + */ + fn(dst, src, size); + + cycle_start = get_cycles(); + for (i = 0; i < nr_loops; ++i) + fn(dst, src, size); + cycle_end = get_cycles(); + + free(src); + free(dst); + return cycle_end - cycle_start; +} + +static double do_memcpy_gettimeofday(const struct function *r, size_t size) +{ + struct timeval tv_start, tv_end, tv_diff; + memcpy_t fn = r->fn.memcpy; + void *src = NULL, *dst = NULL; + int i; + + memcpy_alloc_mem(&dst, &src, size); + + /* + * We prefault the freshly allocated memory range here, + * to not measure page fault overhead: + */ + fn(dst, src, size); + + BUG_ON(gettimeofday(&tv_start, NULL)); + for (i = 0; i < nr_loops; ++i) + fn(dst, src, size); + BUG_ON(gettimeofday(&tv_end, NULL)); + + timersub(&tv_end, &tv_start, &tv_diff); + + free(src); + free(dst); + + return (double)(((double)size * nr_loops) / timeval2double(&tv_diff)); +} + +struct function memcpy_functions[] = { + { .name = "default", + .desc = "Default memcpy() provided by glibc", + .fn.memcpy = memcpy }, + +#ifdef HAVE_ARCH_X86_64_SUPPORT +# define MEMCPY_FN(_fn, _name, _desc) {.name = _name, .desc = _desc, .fn.memcpy = _fn}, +# include "mem-memcpy-x86-64-asm-def.h" +# undef MEMCPY_FN +#endif + + { .name = NULL, } +}; + +static const char * const bench_mem_memcpy_usage[] = { + "perf bench mem memcpy <options>", + NULL +}; + +int bench_mem_memcpy(int argc, const char **argv, const char *prefix __maybe_unused) +{ + struct bench_mem_info info = { + .functions = memcpy_functions, + .do_cycles = do_memcpy_cycles, + .do_gettimeofday = do_memcpy_gettimeofday, + .usage = bench_mem_memcpy_usage, + }; + + return bench_mem_common(argc, argv, &info); +} + +static void memset_alloc_mem(void **dst, size_t size) +{ + *dst = zalloc(size); + if (!*dst) + die("memory allocation failed - maybe size is too large?\n"); +} + +static u64 do_memset_cycles(const struct function *r, size_t size) +{ + u64 cycle_start = 0ULL, cycle_end = 0ULL; + memset_t fn = r->fn.memset; + void *dst = NULL; + int i; + + memset_alloc_mem(&dst, size); + + /* + * We prefault the freshly allocated memory range here, + * to not measure page fault overhead: + */ + fn(dst, -1, size); + + cycle_start = get_cycles(); + for (i = 0; i < nr_loops; ++i) + fn(dst, i, size); + cycle_end = get_cycles(); + + free(dst); + return cycle_end - cycle_start; +} + +static double do_memset_gettimeofday(const struct function *r, size_t size) +{ + struct timeval tv_start, tv_end, tv_diff; + memset_t fn = r->fn.memset; + void *dst = NULL; + int i; + + memset_alloc_mem(&dst, size); + + /* + * We prefault the freshly allocated memory range here, + * to not measure page fault overhead: + */ + fn(dst, -1, size); + + BUG_ON(gettimeofday(&tv_start, NULL)); + for (i = 0; i < nr_loops; ++i) + fn(dst, i, size); + BUG_ON(gettimeofday(&tv_end, NULL)); + + timersub(&tv_end, &tv_start, &tv_diff); + + free(dst); + return (double)(((double)size * nr_loops) / timeval2double(&tv_diff)); +} + +static const char * const bench_mem_memset_usage[] = { + "perf bench mem memset <options>", + NULL +}; + +static const struct function memset_functions[] = { + { .name = "default", + .desc = "Default memset() provided by glibc", + .fn.memset = memset }, + +#ifdef HAVE_ARCH_X86_64_SUPPORT +# define MEMSET_FN(_fn, _name, _desc) { .name = _name, .desc = _desc, .fn.memset = _fn }, +# include "mem-memset-x86-64-asm-def.h" +# undef MEMSET_FN +#endif + + { .name = NULL, } +}; + +int bench_mem_memset(int argc, const char **argv, const char *prefix __maybe_unused) +{ + struct bench_mem_info info = { + .functions = memset_functions, + .do_cycles = do_memset_cycles, + .do_gettimeofday = do_memset_gettimeofday, + .usage = bench_mem_memset_usage, + }; + + return bench_mem_common(argc, argv, &info); +} diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c deleted file mode 100644 index d3dfb7936..000000000 --- a/tools/perf/bench/mem-memcpy.c +++ /dev/null @@ -1,434 +0,0 @@ -/* - * mem-memcpy.c - * - * memcpy: Simple memory copy in various ways - * - * Written by Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp> - */ - -#include "../perf.h" -#include "../util/util.h" -#include "../util/parse-options.h" -#include "../util/header.h" -#include "../util/cloexec.h" -#include "bench.h" -#include "mem-memcpy-arch.h" -#include "mem-memset-arch.h" - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/time.h> -#include <errno.h> - -#define K 1024 - -static const char *length_str = "1MB"; -static const char *routine = "default"; -static int iterations = 1; -static bool use_cycle; -static int cycle_fd; -static bool only_prefault; -static bool no_prefault; - -static const struct option options[] = { - OPT_STRING('l', "length", &length_str, "1MB", - "Specify length of memory to copy. " - "Available units: B, KB, MB, GB and TB (upper and lower)"), - OPT_STRING('r', "routine", &routine, "default", - "Specify routine to copy, \"all\" runs all available routines"), - OPT_INTEGER('i', "iterations", &iterations, - "repeat memcpy() invocation this number of times"), - OPT_BOOLEAN('c', "cycle", &use_cycle, - "Use cycles event instead of gettimeofday() for measuring"), - OPT_BOOLEAN('o', "only-prefault", &only_prefault, - "Show only the result with page faults before memcpy()"), - OPT_BOOLEAN('n', "no-prefault", &no_prefault, - "Show only the result without page faults before memcpy()"), - OPT_END() -}; - -typedef void *(*memcpy_t)(void *, const void *, size_t); -typedef void *(*memset_t)(void *, int, size_t); - -struct routine { - const char *name; - const char *desc; - union { - memcpy_t memcpy; - memset_t memset; - } fn; -}; - -struct routine memcpy_routines[] = { - { .name = "default", - .desc = "Default memcpy() provided by glibc", - .fn.memcpy = memcpy }, -#ifdef HAVE_ARCH_X86_64_SUPPORT - -#define MEMCPY_FN(_fn, _name, _desc) {.name = _name, .desc = _desc, .fn.memcpy = _fn}, -#include "mem-memcpy-x86-64-asm-def.h" -#undef MEMCPY_FN - -#endif - - { NULL, - NULL, - {NULL} } -}; - -static const char * const bench_mem_memcpy_usage[] = { - "perf bench mem memcpy <options>", - NULL -}; - -static struct perf_event_attr cycle_attr = { - .type = PERF_TYPE_HARDWARE, - .config = PERF_COUNT_HW_CPU_CYCLES -}; - -static void init_cycle(void) -{ - cycle_fd = sys_perf_event_open(&cycle_attr, getpid(), -1, -1, - perf_event_open_cloexec_flag()); - - if (cycle_fd < 0 && errno == ENOSYS) - die("No CONFIG_PERF_EVENTS=y kernel support configured?\n"); - else - BUG_ON(cycle_fd < 0); -} - -static u64 get_cycle(void) -{ - int ret; - u64 clk; - - ret = read(cycle_fd, &clk, sizeof(u64)); - BUG_ON(ret != sizeof(u64)); - - return clk; -} - -static double timeval2double(struct timeval *ts) -{ - return (double)ts->tv_sec + - (double)ts->tv_usec / (double)1000000; -} - -#define pf (no_prefault ? 0 : 1) - -#define print_bps(x) do { \ - if (x < K) \ - printf(" %14lf B/Sec", x); \ - else if (x < K * K) \ - printf(" %14lfd KB/Sec", x / K); \ - else if (x < K * K * K) \ - printf(" %14lf MB/Sec", x / K / K); \ - else \ - printf(" %14lf GB/Sec", x / K / K / K); \ - } while (0) - -struct bench_mem_info { - const struct routine *routines; - u64 (*do_cycle)(const struct routine *r, size_t len, bool prefault); - double (*do_gettimeofday)(const struct routine *r, size_t len, bool prefault); - const char *const *usage; -}; - -static void __bench_mem_routine(struct bench_mem_info *info, int r_idx, size_t len, double totallen) -{ - const struct routine *r = &info->routines[r_idx]; - double result_bps[2]; - u64 result_cycle[2]; - - result_cycle[0] = result_cycle[1] = 0ULL; - result_bps[0] = result_bps[1] = 0.0; - - printf("Routine %s (%s)\n", r->name, r->desc); - - if (bench_format == BENCH_FORMAT_DEFAULT) - printf("# Copying %s Bytes ...\n\n", length_str); - - if (!only_prefault && !no_prefault) { - /* show both of results */ - if (use_cycle) { - result_cycle[0] = info->do_cycle(r, len, false); - result_cycle[1] = info->do_cycle(r, len, true); - } else { - result_bps[0] = info->do_gettimeofday(r, len, false); - result_bps[1] = info->do_gettimeofday(r, len, true); - } - } else { - if (use_cycle) - result_cycle[pf] = info->do_cycle(r, len, only_prefault); - else - result_bps[pf] = info->do_gettimeofday(r, len, only_prefault); - } - - switch (bench_format) { - case BENCH_FORMAT_DEFAULT: - if (!only_prefault && !no_prefault) { - if (use_cycle) { - printf(" %14lf Cycle/Byte\n", - (double)result_cycle[0] - / totallen); - printf(" %14lf Cycle/Byte (with prefault)\n", - (double)result_cycle[1] - / totallen); - } else { - print_bps(result_bps[0]); - printf("\n"); - print_bps(result_bps[1]); - printf(" (with prefault)\n"); - } - } else { - if (use_cycle) { - printf(" %14lf Cycle/Byte", - (double)result_cycle[pf] - / totallen); - } else - print_bps(result_bps[pf]); - - printf("%s\n", only_prefault ? " (with prefault)" : ""); - } - break; - case BENCH_FORMAT_SIMPLE: - if (!only_prefault && !no_prefault) { - if (use_cycle) { - printf("%lf %lf\n", - (double)result_cycle[0] / totallen, - (double)result_cycle[1] / totallen); - } else { - printf("%lf %lf\n", - result_bps[0], result_bps[1]); - } - } else { - if (use_cycle) { - printf("%lf\n", (double)result_cycle[pf] - / totallen); - } else - printf("%lf\n", result_bps[pf]); - } - break; - default: - /* reaching this means there's some disaster: */ - die("unknown format: %d\n", bench_format); - break; - } -} - -static int bench_mem_common(int argc, const char **argv, - const char *prefix __maybe_unused, - struct bench_mem_info *info) -{ - int i; - size_t len; - double totallen; - - argc = parse_options(argc, argv, options, - info->usage, 0); - - if (no_prefault && only_prefault) { - fprintf(stderr, "Invalid options: -o and -n are mutually exclusive\n"); - return 1; - } - - if (use_cycle) - init_cycle(); - - len = (size_t)perf_atoll((char *)length_str); - totallen = (double)len * iterations; - - if ((s64)len <= 0) { - fprintf(stderr, "Invalid length:%s\n", length_str); - return 1; - } - - /* same to without specifying either of prefault and no-prefault */ - if (only_prefault && no_prefault) - only_prefault = no_prefault = false; - - if (!strncmp(routine, "all", 3)) { - for (i = 0; info->routines[i].name; i++) - __bench_mem_routine(info, i, len, totallen); - return 0; - } - - for (i = 0; info->routines[i].name; i++) { - if (!strcmp(info->routines[i].name, routine)) - break; - } - if (!info->routines[i].name) { - printf("Unknown routine:%s\n", routine); - printf("Available routines...\n"); - for (i = 0; info->routines[i].name; i++) { - printf("\t%s ... %s\n", - info->routines[i].name, info->routines[i].desc); - } - return 1; - } - - __bench_mem_routine(info, i, len, totallen); - - return 0; -} - -static void memcpy_alloc_mem(void **dst, void **src, size_t length) -{ - *dst = zalloc(length); - if (!*dst) - die("memory allocation failed - maybe length is too large?\n"); - - *src = zalloc(length); - if (!*src) - die("memory allocation failed - maybe length is too large?\n"); - /* Make sure to always replace the zero pages even if MMAP_THRESH is crossed */ - memset(*src, 0, length); -} - -static u64 do_memcpy_cycle(const struct routine *r, size_t len, bool prefault) -{ - u64 cycle_start = 0ULL, cycle_end = 0ULL; - void *src = NULL, *dst = NULL; - memcpy_t fn = r->fn.memcpy; - int i; - - memcpy_alloc_mem(&dst, &src, len); - - if (prefault) - fn(dst, src, len); - - cycle_start = get_cycle(); - for (i = 0; i < iterations; ++i) - fn(dst, src, len); - cycle_end = get_cycle(); - - free(src); - free(dst); - return cycle_end - cycle_start; -} - -static double do_memcpy_gettimeofday(const struct routine *r, size_t len, - bool prefault) -{ - struct timeval tv_start, tv_end, tv_diff; - memcpy_t fn = r->fn.memcpy; - void *src = NULL, *dst = NULL; - int i; - - memcpy_alloc_mem(&dst, &src, len); - - if (prefault) - fn(dst, src, len); - - BUG_ON(gettimeofday(&tv_start, NULL)); - for (i = 0; i < iterations; ++i) - fn(dst, src, len); - BUG_ON(gettimeofday(&tv_end, NULL)); - - timersub(&tv_end, &tv_start, &tv_diff); - - free(src); - free(dst); - return (double)(((double)len * iterations) / timeval2double(&tv_diff)); -} - -int bench_mem_memcpy(int argc, const char **argv, - const char *prefix __maybe_unused) -{ - struct bench_mem_info info = { - .routines = memcpy_routines, - .do_cycle = do_memcpy_cycle, - .do_gettimeofday = do_memcpy_gettimeofday, - .usage = bench_mem_memcpy_usage, - }; - - return bench_mem_common(argc, argv, prefix, &info); -} - -static void memset_alloc_mem(void **dst, size_t length) -{ - *dst = zalloc(length); - if (!*dst) - die("memory allocation failed - maybe length is too large?\n"); -} - -static u64 do_memset_cycle(const struct routine *r, size_t len, bool prefault) -{ - u64 cycle_start = 0ULL, cycle_end = 0ULL; - memset_t fn = r->fn.memset; - void *dst = NULL; - int i; - - memset_alloc_mem(&dst, len); - - if (prefault) - fn(dst, -1, len); - - cycle_start = get_cycle(); - for (i = 0; i < iterations; ++i) - fn(dst, i, len); - cycle_end = get_cycle(); - - free(dst); - return cycle_end - cycle_start; -} - -static double do_memset_gettimeofday(const struct routine *r, size_t len, - bool prefault) -{ - struct timeval tv_start, tv_end, tv_diff; - memset_t fn = r->fn.memset; - void *dst = NULL; - int i; - - memset_alloc_mem(&dst, len); - - if (prefault) - fn(dst, -1, len); - - BUG_ON(gettimeofday(&tv_start, NULL)); - for (i = 0; i < iterations; ++i) - fn(dst, i, len); - BUG_ON(gettimeofday(&tv_end, NULL)); - - timersub(&tv_end, &tv_start, &tv_diff); - - free(dst); - return (double)(((double)len * iterations) / timeval2double(&tv_diff)); -} - -static const char * const bench_mem_memset_usage[] = { - "perf bench mem memset <options>", - NULL -}; - -static const struct routine memset_routines[] = { - { .name ="default", - .desc = "Default memset() provided by glibc", - .fn.memset = memset }, -#ifdef HAVE_ARCH_X86_64_SUPPORT - -#define MEMSET_FN(_fn, _name, _desc) { .name = _name, .desc = _desc, .fn.memset = _fn }, -#include "mem-memset-x86-64-asm-def.h" -#undef MEMSET_FN - -#endif - - { .name = NULL, - .desc = NULL, - .fn.memset = NULL } -}; - -int bench_mem_memset(int argc, const char **argv, - const char *prefix __maybe_unused) -{ - struct bench_mem_info info = { - .routines = memset_routines, - .do_cycle = do_memset_cycle, - .do_gettimeofday = do_memset_gettimeofday, - .usage = bench_mem_memset_usage, - }; - - return bench_mem_common(argc, argv, prefix, &info); -} diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c index 870b7e665..492df2752 100644 --- a/tools/perf/bench/numa.c +++ b/tools/perf/bench/numa.c @@ -164,8 +164,8 @@ static const struct option options[] = { OPT_STRING('L', "mb_proc_locked", &p0.mb_proc_locked_str,"MB", "process serialized/locked memory access (MBs), <= process_memory"), OPT_STRING('T', "mb_thread" , &p0.mb_thread_str, "MB", "thread memory (MBs)"), - OPT_UINTEGER('l', "nr_loops" , &p0.nr_loops, "max number of loops to run"), - OPT_UINTEGER('s', "nr_secs" , &p0.nr_secs, "max number of seconds to run"), + OPT_UINTEGER('l', "nr_loops" , &p0.nr_loops, "max number of loops to run (default: unlimited)"), + OPT_UINTEGER('s', "nr_secs" , &p0.nr_secs, "max number of seconds to run (default: 5 secs)"), OPT_UINTEGER('u', "usleep" , &p0.sleep_usecs, "usecs to sleep per loop iteration"), OPT_BOOLEAN('R', "data_reads" , &p0.data_reads, "access the data via writes (can be mixed with -W)"), diff --git a/tools/perf/bench/sched-messaging.c b/tools/perf/bench/sched-messaging.c index d7f281c28..d4ff1b539 100644 --- a/tools/perf/bench/sched-messaging.c +++ b/tools/perf/bench/sched-messaging.c @@ -33,7 +33,7 @@ #define DATASIZE 100 static bool use_pipes = false; -static unsigned int loops = 100; +static unsigned int nr_loops = 100; static bool thread_mode = false; static unsigned int num_groups = 10; @@ -79,7 +79,7 @@ static void ready(int ready_out, int wakefd) err(EXIT_FAILURE, "poll"); } -/* Sender sprays loops messages down each file descriptor */ +/* Sender sprays nr_loops messages down each file descriptor */ static void *sender(struct sender_context *ctx) { char data[DATASIZE]; @@ -88,7 +88,7 @@ static void *sender(struct sender_context *ctx) ready(ctx->ready_out, ctx->wakefd); /* Now pump to every receiver. */ - for (i = 0; i < loops; i++) { + for (i = 0; i < nr_loops; i++) { for (j = 0; j < ctx->num_fds; j++) { int ret, done = 0; @@ -213,7 +213,7 @@ static unsigned int group(pthread_t *pth, /* Create the pipe between client and server */ fdpair(fds); - ctx->num_packets = num_fds * loops; + ctx->num_packets = num_fds * nr_loops; ctx->in_fds[0] = fds[0]; ctx->in_fds[1] = fds[1]; ctx->ready_out = ready_out; @@ -250,7 +250,7 @@ static const struct option options[] = { OPT_BOOLEAN('t', "thread", &thread_mode, "Be multi thread instead of multi process"), OPT_UINTEGER('g', "group", &num_groups, "Specify number of groups"), - OPT_UINTEGER('l', "loop", &loops, "Specify number of loops"), + OPT_UINTEGER('l', "nr_loops", &nr_loops, "Specify the number of loops to run (default: 100)"), OPT_END() }; diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 8edc205ff..2bf9b3fd9 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -211,7 +211,7 @@ static int __cmd_annotate(struct perf_annotate *ann) } if (!objdump_path) { - ret = perf_session_env__lookup_objdump(&session->header.env); + ret = perf_env__lookup_objdump(&session->header.env); if (ret) goto out; } diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c index f67934d46..b17aed36c 100644 --- a/tools/perf/builtin-bench.c +++ b/tools/perf/builtin-bench.c @@ -36,7 +36,7 @@ struct bench { #ifdef HAVE_LIBNUMA_SUPPORT static struct bench numa_benchmarks[] = { { "mem", "Benchmark for NUMA workloads", bench_numa }, - { "all", "Test all NUMA benchmarks", NULL }, + { "all", "Run all NUMA benchmarks", NULL }, { NULL, NULL, NULL } }; #endif @@ -44,14 +44,14 @@ static struct bench numa_benchmarks[] = { static struct bench sched_benchmarks[] = { { "messaging", "Benchmark for scheduling and IPC", bench_sched_messaging }, { "pipe", "Benchmark for pipe() between two processes", bench_sched_pipe }, - { "all", "Test all scheduler benchmarks", NULL }, + { "all", "Run all scheduler benchmarks", NULL }, { NULL, NULL, NULL } }; static struct bench mem_benchmarks[] = { - { "memcpy", "Benchmark for memcpy()", bench_mem_memcpy }, - { "memset", "Benchmark for memset() tests", bench_mem_memset }, - { "all", "Test all memory benchmarks", NULL }, + { "memcpy", "Benchmark for memcpy() functions", bench_mem_memcpy }, + { "memset", "Benchmark for memset() functions", bench_mem_memset }, + { "all", "Run all memory access benchmarks", NULL }, { NULL, NULL, NULL } }; @@ -62,7 +62,7 @@ static struct bench futex_benchmarks[] = { { "requeue", "Benchmark for futex requeue calls", bench_futex_requeue }, /* pi-futexes */ { "lock-pi", "Benchmark for futex lock_pi calls", bench_futex_lock_pi }, - { "all", "Test all futex benchmarks", NULL }, + { "all", "Run all futex benchmarks", NULL }, { NULL, NULL, NULL } }; @@ -110,7 +110,7 @@ int bench_format = BENCH_FORMAT_DEFAULT; unsigned int bench_repeat = 10; /* default number of times to repeat the run */ static const struct option bench_options[] = { - OPT_STRING('f', "format", &bench_format_str, "default", "Specify format style"), + OPT_STRING('f', "format", &bench_format_str, "default|simple", "Specify the output formatting style"), OPT_UINTEGER('r', "repeat", &bench_repeat, "Specify amount of times to repeat the run"), OPT_END() }; diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c index 918b4de29..6419f57b0 100644 --- a/tools/perf/builtin-buildid-list.c +++ b/tools/perf/builtin-buildid-list.c @@ -110,7 +110,7 @@ int cmd_buildid_list(int argc, const char **argv, setup_pager(); if (show_kernel) - return sysfs__fprintf_build_id(stdout); + return !(sysfs__fprintf_build_id(stdout) > 0); return perf_session__list_build_ids(force, with_hits); } diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c index 695ec5a50..f4d62510a 100644 --- a/tools/perf/builtin-evlist.c +++ b/tools/perf/builtin-evlist.c @@ -61,8 +61,8 @@ int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused) usage_with_options(evlist_usage, options); if (details.event_group && (details.verbose || details.freq)) { - pr_err("--group option is not compatible with other options\n"); - usage_with_options(evlist_usage, options); + usage_with_options_msg(evlist_usage, options, + "--group option is not compatible with other options\n"); } return __cmd_evlist(input_name, &details); diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c index 36486eade..a7d588bf3 100644 --- a/tools/perf/builtin-help.c +++ b/tools/perf/builtin-help.c @@ -463,7 +463,7 @@ int cmd_help(int argc, const char **argv, const char *prefix __maybe_unused) builtin_help_subcommands, builtin_help_usage, 0); if (show_all) { - printf("\n usage: %s\n\n", perf_usage_string); + printf("\n Usage: %s\n\n", perf_usage_string); list_commands("perf commands", &main_cmds, &other_cmds); printf(" %s\n\n", perf_more_info_string); return 0; diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c index f62c49b35..99d127fe9 100644 --- a/tools/perf/builtin-inject.c +++ b/tools/perf/builtin-inject.c @@ -28,9 +28,11 @@ struct perf_inject { bool build_ids; bool sched_stat; bool have_auxtrace; + bool strip; const char *input_name; struct perf_data_file output; u64 bytes_written; + u64 aux_id; struct list_head samples; struct itrace_synth_opts itrace_synth_opts; }; @@ -176,6 +178,27 @@ static int perf_event__repipe(struct perf_tool *tool, return perf_event__repipe_synth(tool, event); } +static int perf_event__drop(struct perf_tool *tool __maybe_unused, + union perf_event *event __maybe_unused, + struct perf_sample *sample __maybe_unused, + struct machine *machine __maybe_unused) +{ + return 0; +} + +static int perf_event__drop_aux(struct perf_tool *tool, + union perf_event *event __maybe_unused, + struct perf_sample *sample, + struct machine *machine __maybe_unused) +{ + struct perf_inject *inject = container_of(tool, struct perf_inject, tool); + + if (!inject->aux_id) + inject->aux_id = sample->id; + + return 0; +} + typedef int (*inject_handler)(struct perf_tool *tool, union perf_event *event, struct perf_sample *sample, @@ -466,6 +489,78 @@ static int perf_evsel__check_stype(struct perf_evsel *evsel, return 0; } +static int drop_sample(struct perf_tool *tool __maybe_unused, + union perf_event *event __maybe_unused, + struct perf_sample *sample __maybe_unused, + struct perf_evsel *evsel __maybe_unused, + struct machine *machine __maybe_unused) +{ + return 0; +} + +static void strip_init(struct perf_inject *inject) +{ + struct perf_evlist *evlist = inject->session->evlist; + struct perf_evsel *evsel; + + inject->tool.context_switch = perf_event__drop; + + evlist__for_each(evlist, evsel) + evsel->handler = drop_sample; +} + +static bool has_tracking(struct perf_evsel *evsel) +{ + return evsel->attr.mmap || evsel->attr.mmap2 || evsel->attr.comm || + evsel->attr.task; +} + +#define COMPAT_MASK (PERF_SAMPLE_ID | PERF_SAMPLE_TID | PERF_SAMPLE_TIME | \ + PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_IDENTIFIER) + +/* + * In order that the perf.data file is parsable, tracking events like MMAP need + * their selected event to exist, except if there is only 1 selected event left + * and it has a compatible sample type. + */ +static bool ok_to_remove(struct perf_evlist *evlist, + struct perf_evsel *evsel_to_remove) +{ + struct perf_evsel *evsel; + int cnt = 0; + bool ok = false; + + if (!has_tracking(evsel_to_remove)) + return true; + + evlist__for_each(evlist, evsel) { + if (evsel->handler != drop_sample) { + cnt += 1; + if ((evsel->attr.sample_type & COMPAT_MASK) == + (evsel_to_remove->attr.sample_type & COMPAT_MASK)) + ok = true; + } + } + + return ok && cnt == 1; +} + +static void strip_fini(struct perf_inject *inject) +{ + struct perf_evlist *evlist = inject->session->evlist; + struct perf_evsel *evsel, *tmp; + + /* Remove non-synthesized evsels if possible */ + evlist__for_each_safe(evlist, tmp, evsel) { + if (evsel->handler == drop_sample && + ok_to_remove(evlist, evsel)) { + pr_debug("Deleting %s\n", perf_evsel__name(evsel)); + perf_evlist__remove(evlist, evsel); + perf_evsel__delete(evsel); + } + } +} + static int __cmd_inject(struct perf_inject *inject) { int ret = -EINVAL; @@ -512,10 +607,14 @@ static int __cmd_inject(struct perf_inject *inject) inject->tool.id_index = perf_event__repipe_id_index; inject->tool.auxtrace_info = perf_event__process_auxtrace_info; inject->tool.auxtrace = perf_event__process_auxtrace; + inject->tool.aux = perf_event__drop_aux; + inject->tool.itrace_start = perf_event__drop_aux, inject->tool.ordered_events = true; inject->tool.ordering_requires_timestamps = true; /* Allow space in the header for new attributes */ output_data_offset = 4096; + if (inject->strip) + strip_init(inject); } if (!inject->itrace_synth_opts.set) @@ -535,11 +634,28 @@ static int __cmd_inject(struct perf_inject *inject) } /* * The AUX areas have been removed and replaced with - * synthesized hardware events, so clear the feature flag. + * synthesized hardware events, so clear the feature flag and + * remove the evsel. */ - if (inject->itrace_synth_opts.set) + if (inject->itrace_synth_opts.set) { + struct perf_evsel *evsel; + perf_header__clear_feat(&session->header, HEADER_AUXTRACE); + if (inject->itrace_synth_opts.last_branch) + perf_header__set_feat(&session->header, + HEADER_BRANCH_STACK); + evsel = perf_evlist__id2evsel_strict(session->evlist, + inject->aux_id); + if (evsel) { + pr_debug("Deleting %s\n", + perf_evsel__name(evsel)); + perf_evlist__remove(session->evlist, evsel); + perf_evsel__delete(evsel); + } + if (inject->strip) + strip_fini(inject); + } session->header.data_offset = output_data_offset; session->header.data_size = inject->bytes_written; perf_session__write_header(session, session->evlist, fd, true); @@ -559,6 +675,7 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused) .fork = perf_event__repipe, .exit = perf_event__repipe, .lost = perf_event__repipe, + .lost_samples = perf_event__repipe, .aux = perf_event__repipe, .itrace_start = perf_event__repipe, .context_switch = perf_event__repipe, @@ -604,6 +721,8 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused) OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts, NULL, "opts", "Instruction Tracing options", itrace_parse_synth_opts), + OPT_BOOLEAN(0, "strip", &inject.strip, + "strip non-synthesized events (use with --itrace)"), OPT_END() }; const char * const inject_usage[] = { @@ -619,6 +738,11 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused) if (argc) usage_with_options(inject_usage, options); + if (inject.strip && !inject.itrace_synth_opts.set) { + pr_err("--strip option requires --itrace option\n"); + return -1; + } + if (perf_data_file__open(&inject.output)) { perror("failed to create output file"); return -1; diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c index 23b1faaaa..93ce665f9 100644 --- a/tools/perf/builtin-kmem.c +++ b/tools/perf/builtin-kmem.c @@ -329,7 +329,7 @@ static int build_alloc_func_list(void) return -EINVAL; } - kernel_map = machine->vmlinux_maps[MAP__FUNCTION]; + kernel_map = machine__kernel_map(machine); if (map__load(kernel_map, NULL) < 0) { pr_err("cannot load kernel map\n"); return -ENOENT; diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index fc1cffb1b..dd94b4ca2 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -13,7 +13,6 @@ #include "util/parse-options.h" #include "util/trace-event.h" #include "util/debug.h" -#include <api/fs/debugfs.h> #include "util/tool.h" #include "util/stat.h" #include "util/top.h" diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c index af5bd0514..bf679e2c9 100644 --- a/tools/perf/builtin-list.c +++ b/tools/perf/builtin-list.c @@ -36,7 +36,7 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused) setup_pager(); - if (!raw_dump) + if (!raw_dump && pager_in_use()) printf("\nList of pre-defined events (to be used in -e):\n\n"); if (argc == 0) { @@ -45,6 +45,8 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused) } for (i = 0; i < argc; ++i) { + char *sep, *s; + if (strcmp(argv[i], "tracepoint") == 0) print_tracepoint_events(NULL, NULL, raw_dump); else if (strcmp(argv[i], "hw") == 0 || @@ -60,8 +62,7 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused) print_hwcache_events(NULL, raw_dump); else if (strcmp(argv[i], "pmu") == 0) print_pmu_events(NULL, raw_dump); - else { - char *sep = strchr(argv[i], ':'), *s; + else if ((sep = strchr(argv[i], ':')) != NULL) { int sep_idx; if (sep == NULL) { @@ -76,6 +77,19 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused) s[sep_idx] = '\0'; print_tracepoint_events(s, s + sep_idx + 1, raw_dump); free(s); + } else { + if (asprintf(&s, "*%s*", argv[i]) < 0) { + printf("Critical: Not enough memory! Trying to continue...\n"); + continue; + } + print_symbol_events(s, PERF_TYPE_HARDWARE, + event_symbols_hw, PERF_COUNT_HW_MAX, raw_dump); + print_symbol_events(s, PERF_TYPE_SOFTWARE, + event_symbols_sw, PERF_COUNT_SW_MAX, raw_dump); + print_hwcache_events(s, raw_dump); + print_pmu_events(s, raw_dump); + print_tracepoint_events(NULL, s, raw_dump); + free(s); } } return 0; diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c index b81cec33b..132afc976 100644 --- a/tools/perf/builtin-probe.c +++ b/tools/perf/builtin-probe.c @@ -37,10 +37,10 @@ #include "util/strfilter.h" #include "util/symbol.h" #include "util/debug.h" -#include <api/fs/debugfs.h> #include "util/parse-options.h" #include "util/probe-finder.h" #include "util/probe-event.h" +#include "util/probe-file.h" #define DEFAULT_VAR_FILTER "!__k???tab_* & !__crc_*" #define DEFAULT_FUNC_FILTER "!_*" @@ -182,10 +182,8 @@ static int opt_set_target(const struct option *opt, const char *str, if (str) { if (!strcmp(opt->long_name, "exec")) params.uprobes = true; -#ifdef HAVE_DWARF_SUPPORT else if (!strcmp(opt->long_name, "module")) params.uprobes = false; -#endif else return ret; @@ -311,6 +309,119 @@ static void pr_err_with_code(const char *msg, int err) pr_err("\n"); } +static int perf_add_probe_events(struct perf_probe_event *pevs, int npevs) +{ + int ret; + int i, k; + const char *event = NULL, *group = NULL; + + ret = init_probe_symbol_maps(pevs->uprobes); + if (ret < 0) + return ret; + + ret = convert_perf_probe_events(pevs, npevs); + if (ret < 0) + goto out_cleanup; + + ret = apply_perf_probe_events(pevs, npevs); + if (ret < 0) + goto out_cleanup; + + for (i = k = 0; i < npevs; i++) + k += pevs[i].ntevs; + + pr_info("Added new event%s\n", (k > 1) ? "s:" : ":"); + for (i = 0; i < npevs; i++) { + struct perf_probe_event *pev = &pevs[i]; + + for (k = 0; k < pev->ntevs; k++) { + struct probe_trace_event *tev = &pev->tevs[k]; + + /* We use tev's name for showing new events */ + show_perf_probe_event(tev->group, tev->event, pev, + tev->point.module, false); + + /* Save the last valid name */ + event = tev->event; + group = tev->group; + } + } + + /* Note that it is possible to skip all events because of blacklist */ + if (event) { + /* Show how to use the event. */ + pr_info("\nYou can now use it in all perf tools, such as:\n\n"); + pr_info("\tperf record -e %s:%s -aR sleep 1\n\n", group, event); + } + +out_cleanup: + cleanup_perf_probe_events(pevs, npevs); + exit_probe_symbol_maps(); + return ret; +} + +static int perf_del_probe_events(struct strfilter *filter) +{ + int ret, ret2, ufd = -1, kfd = -1; + char *str = strfilter__string(filter); + struct strlist *klist = NULL, *ulist = NULL; + struct str_node *ent; + + if (!str) + return -EINVAL; + + pr_debug("Delete filter: \'%s\'\n", str); + + /* Get current event names */ + ret = probe_file__open_both(&kfd, &ufd, PF_FL_RW); + if (ret < 0) + goto out; + + klist = strlist__new(NULL, NULL); + ulist = strlist__new(NULL, NULL); + if (!klist || !ulist) { + ret = -ENOMEM; + goto out; + } + + ret = probe_file__get_events(kfd, filter, klist); + if (ret == 0) { + strlist__for_each(ent, klist) + pr_info("Removed event: %s\n", ent->s); + + ret = probe_file__del_strlist(kfd, klist); + if (ret < 0) + goto error; + } + + ret2 = probe_file__get_events(ufd, filter, ulist); + if (ret2 == 0) { + strlist__for_each(ent, ulist) + pr_info("Removed event: %s\n", ent->s); + + ret2 = probe_file__del_strlist(ufd, ulist); + if (ret2 < 0) + goto error; + } + + if (ret == -ENOENT && ret2 == -ENOENT) + pr_debug("\"%s\" does not hit any event.\n", str); + /* Note that this is silently ignored */ + ret = 0; + +error: + if (kfd >= 0) + close(kfd); + if (ufd >= 0) + close(ufd); +out: + strlist__delete(klist); + strlist__delete(ulist); + free(str); + + return ret; +} + static int __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused) { @@ -377,9 +488,6 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused) "file", "vmlinux pathname"), OPT_STRING('s', "source", &symbol_conf.source_prefix, "directory", "path to kernel source"), - OPT_CALLBACK('m', "module", NULL, "modname|path", - "target module name (for online) or path (for offline)", - opt_set_target), OPT_BOOLEAN('\0', "no-inlines", &probe_conf.no_inlines, "Don't search inlined functions"), #endif @@ -396,6 +504,9 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused) opt_set_filter), OPT_CALLBACK('x', "exec", NULL, "executable|path", "target executable name or path", opt_set_target), + OPT_CALLBACK('m', "module", NULL, "modname|path", + "target module name (for online) or path (for offline)", + opt_set_target), OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, "Enable symbol demangling"), OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, @@ -417,12 +528,12 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused) PARSE_OPT_STOP_AT_NON_OPTION); if (argc > 0) { if (strcmp(argv[0], "-") == 0) { - pr_warning(" Error: '-' is not supported.\n"); - usage_with_options(probe_usage, options); + usage_with_options_msg(probe_usage, options, + "'-' is not supported.\n"); } if (params.command && params.command != 'a') { - pr_warning(" Error: another command except --add is set.\n"); - usage_with_options(probe_usage, options); + usage_with_options_msg(probe_usage, options, + "another command except --add is set.\n"); } ret = parse_probe_event_argv(argc, argv); if (ret < 0) { @@ -451,8 +562,10 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused) switch (params.command) { case 'l': if (params.uprobes) { - pr_warning(" Error: Don't use --list with --exec.\n"); - usage_with_options(probe_usage, options); + pr_err(" Error: Don't use --list with --exec.\n"); + parse_options_usage(probe_usage, options, "l", true); + parse_options_usage(NULL, options, "x", true); + return -EINVAL; } ret = show_perf_probe_events(params.filter); if (ret < 0) @@ -483,7 +596,7 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused) return ret; #endif case 'd': - ret = del_perf_probe_events(params.filter); + ret = perf_del_probe_events(params.filter); if (ret < 0) { pr_err_with_code(" Error: Failed to delete events.", ret); return ret; @@ -492,11 +605,13 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused) case 'a': /* Ensure the last given target is used */ if (params.target && !params.target_used) { - pr_warning(" Error: -x/-m must follow the probe definitions.\n"); - usage_with_options(probe_usage, options); + pr_err(" Error: -x/-m must follow the probe definitions.\n"); + parse_options_usage(probe_usage, options, "m", true); + parse_options_usage(NULL, options, "x", true); + return -EINVAL; } - ret = add_perf_probe_events(params.events, params.nevents); + ret = perf_add_probe_events(params.events, params.nevents); if (ret < 0) { pr_err_with_code(" Error: Failed to add events.", ret); return ret; diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 142eeb341..199fc31e3 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -31,6 +31,7 @@ #include "util/auxtrace.h" #include "util/parse-branch-options.h" #include "util/parse-regs-options.h" +#include "util/llvm-utils.h" #include <unistd.h> #include <sched.h> @@ -49,7 +50,7 @@ struct record { int realtime_prio; bool no_buildid; bool no_buildid_cache; - long samples; + unsigned long long samples; }; static int record__write(struct record *rec, void *bf, size_t size) @@ -636,8 +637,29 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) /* * Let the child rip */ - if (forks) + if (forks) { + union perf_event *event; + + event = malloc(sizeof(event->comm) + machine->id_hdr_size); + if (event == NULL) { + err = -ENOMEM; + goto out_child; + } + + /* + * Some H/W events are generated before COMM event + * which is emitted during exec(), so perf script + * cannot see a correct process name for those events. + * Synthesize COMM event to prevent it. + */ + perf_event__synthesize_comm(tool, event, + rec->evlist->workload.pid, + process_synthesized_event, + machine); + free(event); + perf_evlist__start_workload(rec->evlist); + } if (opts->initial_delay) { usleep(opts->initial_delay * 1000); @@ -646,7 +668,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv) auxtrace_snapshot_enabled = 1; for (;;) { - int hits = rec->samples; + unsigned long long hits = rec->samples; if (record__mmap_read_all(rec) < 0) { auxtrace_snapshot_enabled = 0; @@ -989,13 +1011,8 @@ static struct record record = { }, }; -#define CALLCHAIN_HELP "setup and enables call-graph (stack chain/backtrace) recording: " - -#ifdef HAVE_DWARF_UNWIND_SUPPORT -const char record_callchain_help[] = CALLCHAIN_HELP "fp dwarf lbr"; -#else -const char record_callchain_help[] = CALLCHAIN_HELP "fp lbr"; -#endif +const char record_callchain_help[] = CALLCHAIN_RECORD_HELP + "\n\t\t\t\tDefault: fp"; /* * XXX Will stay a global variable till we fix builtin-script.c to stop messing @@ -1043,7 +1060,7 @@ struct option __record_options[] = { NULL, "enables call-graph recording" , &record_callchain_opt), OPT_CALLBACK(0, "call-graph", &record.opts, - "mode[,dump_size]", record_callchain_help, + "record_mode[,record_size]", record_callchain_help, &record_parse_callchain_opt), OPT_INCR('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"), @@ -1096,6 +1113,12 @@ struct option __record_options[] = { "per thread proc mmap processing timeout in ms"), OPT_BOOLEAN(0, "switch-events", &record.opts.record_switch_events, "Record context switch events"), +#ifdef HAVE_LIBBPF_SUPPORT + OPT_STRING(0, "clang-path", &llvm_param.clang_path, "clang path", + "clang binary to use for compiling BPF scriptlets"), + OPT_STRING(0, "clang-opt", &llvm_param.clang_opt, "clang options", + "options passed to clang when compiling BPF scriptlets"), +#endif OPT_END() }; @@ -1119,14 +1142,15 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused) usage_with_options(record_usage, record_options); if (nr_cgroups && !rec->opts.target.system_wide) { - ui__error("cgroup monitoring only available in" - " system-wide mode\n"); - usage_with_options(record_usage, record_options); + usage_with_options_msg(record_usage, record_options, + "cgroup monitoring only available in system-wide mode"); + } if (rec->opts.record_switch_events && !perf_can_record_switch_events()) { - ui__error("kernel does not support recording context switch events (--switch-events option)\n"); - usage_with_options(record_usage, record_options); + ui__error("kernel does not support recording context switch events\n"); + parse_options_usage(record_usage, record_options, "switch-events", 0); + return -EINVAL; } if (!rec->itr) { diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 62b285e32..f256fac1e 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -44,7 +44,7 @@ struct report { struct perf_tool tool; struct perf_session *session; - bool force, use_tui, use_gtk, use_stdio; + bool use_tui, use_gtk, use_stdio; bool hide_unresolved; bool dont_use_callchains; bool show_full_info; @@ -62,6 +62,7 @@ struct report { float min_percent; u64 nr_entries; u64 queue_size; + int socket_filter; DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); }; @@ -162,14 +163,21 @@ static int process_sample_event(struct perf_tool *tool, if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap)) goto out_put; - if (sort__mode == SORT_MODE__BRANCH) + if (sort__mode == SORT_MODE__BRANCH) { + /* + * A non-synthesized event might not have a branch stack if + * branch stacks have been synthesized (using itrace options). + */ + if (!sample->branch_stack) + goto out_put; iter.ops = &hist_iter_branch; - else if (rep->mem_mode) + } else if (rep->mem_mode) { iter.ops = &hist_iter_mem; - else if (symbol_conf.cumulate_callchain) + } else if (symbol_conf.cumulate_callchain) { iter.ops = &hist_iter_cumulative; - else + } else { iter.ops = &hist_iter_normal; + } if (al.map != NULL) al.map->dso->hit = 1; @@ -213,6 +221,15 @@ static int report__setup_sample_type(struct report *rep) u64 sample_type = perf_evlist__combined_sample_type(session->evlist); bool is_pipe = perf_data_file__is_pipe(session->file); + if (session->itrace_synth_opts->callchain || + (!is_pipe && + perf_header__has_feat(&session->header, HEADER_AUXTRACE) && + !session->itrace_synth_opts->set)) + sample_type |= PERF_SAMPLE_CALLCHAIN; + + if (session->itrace_synth_opts->last_branch) + sample_type |= PERF_SAMPLE_BRANCH_STACK; + if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) { if (sort__has_parent) { ui__error("Selected --sort parent, but no " @@ -286,6 +303,7 @@ static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report struct perf_evsel *evsel = hists_to_evsel(hists); char buf[512]; size_t size = sizeof(buf); + int socked_id = hists->socket_filter; if (symbol_conf.filter_relative) { nr_samples = hists->stats.nr_non_filtered_samples; @@ -326,6 +344,10 @@ static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report ret += fprintf(fp, "\n# Sort order : %s", sort_order ? : default_mem_sort_order); } else ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events); + + if (socked_id > -1) + ret += fprintf(fp, "\n# Processor Socket: %d", socked_id); + return ret + fprintf(fp, "\n#\n"); } @@ -365,7 +387,7 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist, static void report__warn_kptr_restrict(const struct report *rep) { - struct map *kernel_map = rep->session->machines.host.vmlinux_maps[MAP__FUNCTION]; + struct map *kernel_map = machine__kernel_map(&rep->session->machines.host); struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL; if (kernel_map == NULL || @@ -450,6 +472,8 @@ static void report__collapse_hists(struct report *rep) if (pos->idx == 0) hists->symbol_filter_str = rep->symbol_filter_str; + hists->socket_filter = rep->socket_filter; + hists__collapse_resort(hists, &prog); /* Non-group events are considered as leader */ @@ -601,6 +625,12 @@ parse_percent_limit(const struct option *opt, const char *str, return 0; } +#define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function" + +const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n" + CALLCHAIN_REPORT_HELP + "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT; + int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) { struct perf_session *session; @@ -609,7 +639,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) bool has_br_stack = false; int branch_mode = -1; bool branch_call_mode = false; - char callchain_default_opt[] = "fractal,0.5,callee"; + char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT; const char * const report_usage[] = { "perf report [<options>]", NULL @@ -635,6 +665,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) }, .max_stack = PERF_MAX_STACK_DEPTH, .pretty_printing_style = "normal", + .socket_filter = -1, }; const struct option options[] = { OPT_STRING('i', "input", &input_name, "file", @@ -647,7 +678,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) "file", "vmlinux pathname"), OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file", "kallsyms pathname"), - OPT_BOOLEAN('f', "force", &report.force, "don't complain, do it"), + OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"), OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, "load module symbols - WARNING: use only with -k and LIVE kernel"), OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, @@ -668,15 +699,18 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) " Please refer the man page for the complete list."), OPT_STRING('F', "fields", &field_order, "key[,keys...]", "output field(s): overhead, period, sample plus all of sort keys"), - OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization, + OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization, "Show sample percentage for different cpu modes"), + OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization, + "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN), OPT_STRING('p', "parent", &parent_pattern, "regex", "regex filter to identify parent, see: '--sort parent'"), OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other, "Only display entries with parent-match"), - OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent[,print_limit],call_order[,branch]", - "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold, optional print limit, callchain order, key (function or address), add branches. " - "Default: fractal,0.5,callee,function", &report_parse_callchain_opt, callchain_default_opt), + OPT_CALLBACK_DEFAULT('g', "call-graph", &report, + "print_type,threshold[,print_limit],order,sort_key[,branch]", + report_callchain_help, &report_parse_callchain_opt, + callchain_default_opt), OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, "Accumulate callchains of children and show total overhead as well"), OPT_INTEGER(0, "max-stack", &report.max_stack, @@ -747,6 +781,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) "Show full source file name path for source lines"), OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph, "Show callgraph from reference event"), + OPT_INTEGER(0, "socket-filter", &report.socket_filter, + "only show processor socket that match with this filter"), OPT_END() }; struct perf_data_file file = { @@ -781,6 +817,12 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) if (report.inverted_callchain) callchain_param.order = ORDER_CALLER; + if (symbol_conf.cumulate_callchain && !callchain_param.order_set) + callchain_param.order = ORDER_CALLER; + + if (itrace_synth_opts.callchain && + (int)itrace_synth_opts.callchain_sz > report.max_stack) + report.max_stack = itrace_synth_opts.callchain_sz; if (!input_name || !strlen(input_name)) { if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) @@ -790,7 +832,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) } file.path = input_name; - file.force = report.force; + file.force = symbol_conf.force; repeat: session = perf_session__new(&file, false, &report.tool); @@ -809,6 +851,9 @@ repeat: has_br_stack = perf_header__has_feat(&session->header, HEADER_BRANCH_STACK); + if (itrace_synth_opts.last_branch) + has_br_stack = true; + /* * Branch mode is a tristate: * -1 means default, so decide based on the file having branch data. diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index 33962612a..e3d3e32c0 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -1203,12 +1203,13 @@ static void output_lat_thread(struct perf_sched *sched, struct work_atoms *work_ static int pid_cmp(struct work_atoms *l, struct work_atoms *r) { + if (l->thread == r->thread) + return 0; if (l->thread->tid < r->thread->tid) return -1; if (l->thread->tid > r->thread->tid) return 1; - - return 0; + return (int)(l->thread - r->thread); } static int avg_cmp(struct work_atoms *l, struct work_atoms *r) @@ -1728,8 +1729,8 @@ static void setup_sorting(struct perf_sched *sched, const struct option *options for (tok = strtok_r(str, ", ", &tmp); tok; tok = strtok_r(NULL, ", ", &tmp)) { if (sort_dimension__add(tok, &sched->sort_list) < 0) { - error("Unknown --sort key: `%s'", tok); - usage_with_options(usage_msg, options); + usage_with_options_msg(usage_msg, options, + "Unknown --sort key: `%s'", tok); } } diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 284a76e04..72b5deb4b 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -29,9 +29,12 @@ static bool no_callchain; static bool latency_format; static bool system_wide; static bool print_flags; +static bool nanosecs; static const char *cpu_list; static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); +unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH; + enum perf_output_field { PERF_OUTPUT_COMM = 1U << 0, PERF_OUTPUT_TID = 1U << 1, @@ -48,6 +51,8 @@ enum perf_output_field { PERF_OUTPUT_SRCLINE = 1U << 12, PERF_OUTPUT_PERIOD = 1U << 13, PERF_OUTPUT_IREGS = 1U << 14, + PERF_OUTPUT_BRSTACK = 1U << 15, + PERF_OUTPUT_BRSTACKSYM = 1U << 16, }; struct output_option { @@ -69,6 +74,8 @@ struct output_option { {.str = "srcline", .field = PERF_OUTPUT_SRCLINE}, {.str = "period", .field = PERF_OUTPUT_PERIOD}, {.str = "iregs", .field = PERF_OUTPUT_IREGS}, + {.str = "brstack", .field = PERF_OUTPUT_BRSTACK}, + {.str = "brstacksym", .field = PERF_OUTPUT_BRSTACKSYM}, }; /* default set to maintain compatibility with current format */ @@ -415,10 +422,84 @@ static void print_sample_start(struct perf_sample *sample, secs = nsecs / NSECS_PER_SEC; nsecs -= secs * NSECS_PER_SEC; usecs = nsecs / NSECS_PER_USEC; - printf("%5lu.%06lu: ", secs, usecs); + if (nanosecs) + printf("%5lu.%09llu: ", secs, nsecs); + else + printf("%5lu.%06lu: ", secs, usecs); } } +static inline char +mispred_str(struct branch_entry *br) +{ + if (!(br->flags.mispred || br->flags.predicted)) + return '-'; + + return br->flags.predicted ? 'P' : 'M'; +} + +static void print_sample_brstack(union perf_event *event __maybe_unused, + struct perf_sample *sample, + struct thread *thread __maybe_unused, + struct perf_event_attr *attr __maybe_unused) +{ + struct branch_stack *br = sample->branch_stack; + u64 i; + + if (!(br && br->nr)) + return; + + for (i = 0; i < br->nr; i++) { + printf(" 0x%"PRIx64"/0x%"PRIx64"/%c/%c/%c/%d ", + br->entries[i].from, + br->entries[i].to, + mispred_str( br->entries + i), + br->entries[i].flags.in_tx? 'X' : '-', + br->entries[i].flags.abort? 'A' : '-', + br->entries[i].flags.cycles); + } +} + +static void print_sample_brstacksym(union perf_event *event __maybe_unused, + struct perf_sample *sample, + struct thread *thread __maybe_unused, + struct perf_event_attr *attr __maybe_unused) +{ + struct branch_stack *br = sample->branch_stack; + struct addr_location alf, alt; + u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; + u64 i, from, to; + + if (!(br && br->nr)) + return; + + for (i = 0; i < br->nr; i++) { + + memset(&alf, 0, sizeof(alf)); + memset(&alt, 0, sizeof(alt)); + from = br->entries[i].from; + to = br->entries[i].to; + + thread__find_addr_map(thread, cpumode, MAP__FUNCTION, from, &alf); + if (alf.map) + alf.sym = map__find_symbol(alf.map, alf.addr, NULL); + + thread__find_addr_map(thread, cpumode, MAP__FUNCTION, to, &alt); + if (alt.map) + alt.sym = map__find_symbol(alt.map, alt.addr, NULL); + + symbol__fprintf_symname_offs(alf.sym, &alf, stdout); + putchar('/'); + symbol__fprintf_symname_offs(alt.sym, &alt, stdout); + printf("/%c/%c/%c/%d ", + mispred_str( br->entries + i), + br->entries[i].flags.in_tx? 'X' : '-', + br->entries[i].flags.abort? 'A' : '-', + br->entries[i].flags.cycles); + } +} + + static void print_sample_addr(union perf_event *event, struct perf_sample *sample, struct thread *thread, @@ -471,7 +552,7 @@ static void print_sample_bts(union perf_event *event, } } perf_evsel__print_ip(evsel, sample, al, print_opts, - PERF_MAX_STACK_DEPTH); + scripting_max_stack); } /* print branch_to information */ @@ -548,12 +629,17 @@ static void process_event(union perf_event *event, struct perf_sample *sample, perf_evsel__print_ip(evsel, sample, al, output[attr->type].print_ip_opts, - PERF_MAX_STACK_DEPTH); + scripting_max_stack); } if (PRINT_FIELD(IREGS)) print_sample_iregs(event, sample, thread, attr); + if (PRINT_FIELD(BRSTACK)) + print_sample_brstack(event, sample, thread, attr); + else if (PRINT_FIELD(BRSTACKSYM)) + print_sample_brstacksym(event, sample, thread, attr); + printf("\n"); } @@ -680,7 +766,10 @@ static int process_attr(struct perf_tool *tool, union perf_event *event, set_print_ip_opts(&evsel->attr); - return perf_evsel__check_attr(evsel, scr->session); + if (evsel->attr.sample_type) + err = perf_evsel__check_attr(evsel, scr->session); + + return err; } static int process_comm_event(struct perf_tool *tool, @@ -1672,7 +1761,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) "comma separated output fields prepend with 'type:'. " "Valid types: hw,sw,trace,raw. " "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso," - "addr,symoff,period,iregs,flags", parse_output_fields), + "addr,symoff,period,iregs,brstack,brstacksym,flags", parse_output_fields), OPT_BOOLEAN('a', "all-cpus", &system_wide, "system-wide collection from all CPUs"), OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", @@ -1695,6 +1784,8 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) OPT_BOOLEAN('\0', "show-switch-events", &script.show_switch_events, "Show context switch events (if recorded)"), OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), + OPT_BOOLEAN(0, "ns", &nanosecs, + "Use 9 decimal places when displaying time"), OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts", "Instruction Tracing options", itrace_parse_synth_opts), @@ -1740,6 +1831,10 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) } } + if (itrace_synth_opts.callchain && + itrace_synth_opts.callchain_sz > scripting_max_stack) + scripting_max_stack = itrace_synth_opts.callchain_sz; + /* make sure PERF_EXEC_PATH is set for scripts */ perf_set_argv_exec_path(perf_exec_path()); @@ -1752,9 +1847,9 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) rep_script_path = get_script_path(argv[0], REPORT_SUFFIX); if (!rec_script_path && !rep_script_path) { - fprintf(stderr, " Couldn't find script %s\n\n See perf" + usage_with_options_msg(script_usage, options, + "Couldn't find script `%s'\n\n See perf" " script -l for available scripts.\n", argv[0]); - usage_with_options(script_usage, options); } if (is_top_script(argv[0])) { @@ -1765,10 +1860,10 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) rep_args = has_required_arg(rep_script_path); rec_args = (argc - 1) - rep_args; if (rec_args < 0) { - fprintf(stderr, " %s script requires options." + usage_with_options_msg(script_usage, options, + "`%s' script requires options." "\n\n See perf script -l for available " "scripts and options.\n", argv[0]); - usage_with_options(script_usage, options); } } diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index d46dbb1bc..e77880b50 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -100,6 +100,8 @@ static struct target target = { .uid = UINT_MAX, }; +typedef int (*aggr_get_id_t)(struct cpu_map *m, int cpu); + static int run_count = 1; static bool no_inherit = false; static volatile pid_t child_pid = -1; @@ -119,7 +121,10 @@ static unsigned int unit_width = 4; /* strlen("unit") */ static bool forever = false; static struct timespec ref_time; static struct cpu_map *aggr_map; -static int (*aggr_get_id)(struct cpu_map *m, int cpu); +static aggr_get_id_t aggr_get_id; +static bool append_file; +static const char *output_name; +static int output_fd; static volatile int done = 0; @@ -215,7 +220,7 @@ static void read_counters(bool close_counters) evlist__for_each(evsel_list, counter) { if (read_counter(counter)) - pr_warning("failed to read counter %s\n", counter->name); + pr_debug("failed to read counter %s\n", counter->name); if (perf_stat_process_counter(&stat_config, counter)) pr_warning("failed to process counter %s\n", counter->name); @@ -434,7 +439,7 @@ static void print_noise_pct(double total, double avg) static void print_noise(struct perf_evsel *evsel, double avg) { - struct perf_stat *ps; + struct perf_stat_evsel *ps; if (run_count == 1) return; @@ -479,6 +484,7 @@ static void aggr_printout(struct perf_evsel *evsel, int id, int nr) csv_sep); break; case AGGR_GLOBAL: + case AGGR_UNSET: default: break; } @@ -510,15 +516,6 @@ static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg) if (evsel->cgrp) fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); - - if (csv_output || stat_config.interval) - return; - - if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) - fprintf(output, " # %8.3f CPUs utilized ", - avg / avg_stats(&walltime_nsecs_stats)); - else - fprintf(output, " "); } static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg) @@ -526,7 +523,6 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg) FILE *output = stat_config.output; double sc = evsel->scale; const char *fmt; - int cpu = cpu_map__id_to_cpu(id); if (csv_output) { fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s"; @@ -539,9 +535,6 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg) aggr_printout(evsel, id, nr); - if (stat_config.aggr_mode == AGGR_GLOBAL) - cpu = 0; - fprintf(output, fmt, avg, csv_sep); if (evsel->unit) @@ -553,12 +546,24 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg) if (evsel->cgrp) fprintf(output, "%s%s", csv_sep, evsel->cgrp->name); +} - if (csv_output || stat_config.interval) - return; +static void printout(int id, int nr, struct perf_evsel *counter, double uval) +{ + int cpu = cpu_map__id_to_cpu(id); + + if (stat_config.aggr_mode == AGGR_GLOBAL) + cpu = 0; - perf_stat__print_shadow_stats(output, evsel, avg, cpu, - stat_config.aggr_mode); + if (nsec_counter(counter)) + nsec_printout(id, nr, counter, uval); + else + abs_printout(id, nr, counter, uval); + + if (!csv_output && !stat_config.interval) + perf_stat__print_shadow_stats(stat_config.output, counter, + uval, cpu, + stat_config.aggr_mode); } static void print_aggr(char *prefix) @@ -614,12 +619,7 @@ static void print_aggr(char *prefix) continue; } uval = val * counter->scale; - - if (nsec_counter(counter)) - nsec_printout(id, nr, counter, uval); - else - abs_printout(id, nr, counter, uval); - + printout(id, nr, counter, uval); if (!csv_output) print_noise(counter, 1.0); @@ -650,11 +650,7 @@ static void print_aggr_thread(struct perf_evsel *counter, char *prefix) fprintf(output, "%s", prefix); uval = val * counter->scale; - - if (nsec_counter(counter)) - nsec_printout(thread, 0, counter, uval); - else - abs_printout(thread, 0, counter, uval); + printout(thread, 0, counter, uval); if (!csv_output) print_noise(counter, 1.0); @@ -671,7 +667,7 @@ static void print_aggr_thread(struct perf_evsel *counter, char *prefix) static void print_counter_aggr(struct perf_evsel *counter, char *prefix) { FILE *output = stat_config.output; - struct perf_stat *ps = counter->priv; + struct perf_stat_evsel *ps = counter->priv; double avg = avg_stats(&ps->res_stats[0]); int scaled = counter->counts->scaled; double uval; @@ -704,11 +700,7 @@ static void print_counter_aggr(struct perf_evsel *counter, char *prefix) } uval = avg * counter->scale; - - if (nsec_counter(counter)) - nsec_printout(-1, 0, counter, uval); - else - abs_printout(-1, 0, counter, uval); + printout(-1, 0, counter, uval); print_noise(counter, avg); @@ -761,12 +753,7 @@ static void print_counter(struct perf_evsel *counter, char *prefix) } uval = val * counter->scale; - - if (nsec_counter(counter)) - nsec_printout(cpu, 0, counter, uval); - else - abs_printout(cpu, 0, counter, uval); - + printout(cpu, 0, counter, uval); if (!csv_output) print_noise(counter, 1.0); print_running(run, ena); @@ -799,6 +786,8 @@ static void print_interval(char *prefix, struct timespec *ts) case AGGR_GLOBAL: default: fprintf(output, "# time counts %*s events\n", unit_width, "unit"); + case AGGR_UNSET: + break; } } @@ -880,6 +869,7 @@ static void print_counters(struct timespec *ts, int argc, const char **argv) evlist__for_each(evsel_list, counter) print_counter(counter, prefix); break; + case AGGR_UNSET: default: break; } @@ -940,30 +930,151 @@ static int stat__set_big_num(const struct option *opt __maybe_unused, return 0; } +static const struct option stat_options[] = { + OPT_BOOLEAN('T', "transaction", &transaction_run, + "hardware transaction statistics"), + OPT_CALLBACK('e', "event", &evsel_list, "event", + "event selector. use 'perf list' to list available events", + parse_events_option), + OPT_CALLBACK(0, "filter", &evsel_list, "filter", + "event filter", parse_filter), + OPT_BOOLEAN('i', "no-inherit", &no_inherit, + "child tasks do not inherit counters"), + OPT_STRING('p', "pid", &target.pid, "pid", + "stat events on existing process id"), + OPT_STRING('t', "tid", &target.tid, "tid", + "stat events on existing thread id"), + OPT_BOOLEAN('a', "all-cpus", &target.system_wide, + "system-wide collection from all CPUs"), + OPT_BOOLEAN('g', "group", &group, + "put the counters into a counter group"), + OPT_BOOLEAN('c', "scale", &stat_config.scale, "scale/normalize counters"), + OPT_INCR('v', "verbose", &verbose, + "be more verbose (show counter open errors, etc)"), + OPT_INTEGER('r', "repeat", &run_count, + "repeat command and print average + stddev (max: 100, forever: 0)"), + OPT_BOOLEAN('n', "null", &null_run, + "null run - dont start any counters"), + OPT_INCR('d', "detailed", &detailed_run, + "detailed run - start a lot of events"), + OPT_BOOLEAN('S', "sync", &sync_run, + "call sync() before starting a run"), + OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, + "print large numbers with thousands\' separators", + stat__set_big_num), + OPT_STRING('C', "cpu", &target.cpu_list, "cpu", + "list of cpus to monitor in system-wide"), + OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode, + "disable CPU count aggregation", AGGR_NONE), + OPT_STRING('x', "field-separator", &csv_sep, "separator", + "print counts with custom separator"), + OPT_CALLBACK('G', "cgroup", &evsel_list, "name", + "monitor event in cgroup name only", parse_cgroups), + OPT_STRING('o', "output", &output_name, "file", "output file name"), + OPT_BOOLEAN(0, "append", &append_file, "append to the output file"), + OPT_INTEGER(0, "log-fd", &output_fd, + "log output to fd, instead of stderr"), + OPT_STRING(0, "pre", &pre_cmd, "command", + "command to run prior to the measured command"), + OPT_STRING(0, "post", &post_cmd, "command", + "command to run after to the measured command"), + OPT_UINTEGER('I', "interval-print", &stat_config.interval, + "print counts at regular interval in ms (>= 10)"), + OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode, + "aggregate counts per processor socket", AGGR_SOCKET), + OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode, + "aggregate counts per physical processor core", AGGR_CORE), + OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode, + "aggregate counts per thread", AGGR_THREAD), + OPT_UINTEGER('D', "delay", &initial_delay, + "ms to wait before starting measurement after program start"), + OPT_END() +}; + +static int perf_stat__get_socket(struct cpu_map *map, int cpu) +{ + return cpu_map__get_socket(map, cpu, NULL); +} + +static int perf_stat__get_core(struct cpu_map *map, int cpu) +{ + return cpu_map__get_core(map, cpu, NULL); +} + +static int cpu_map__get_max(struct cpu_map *map) +{ + int i, max = -1; + + for (i = 0; i < map->nr; i++) { + if (map->map[i] > max) + max = map->map[i]; + } + + return max; +} + +static struct cpu_map *cpus_aggr_map; + +static int perf_stat__get_aggr(aggr_get_id_t get_id, struct cpu_map *map, int idx) +{ + int cpu; + + if (idx >= map->nr) + return -1; + + cpu = map->map[idx]; + + if (cpus_aggr_map->map[cpu] == -1) + cpus_aggr_map->map[cpu] = get_id(map, idx); + + return cpus_aggr_map->map[cpu]; +} + +static int perf_stat__get_socket_cached(struct cpu_map *map, int idx) +{ + return perf_stat__get_aggr(perf_stat__get_socket, map, idx); +} + +static int perf_stat__get_core_cached(struct cpu_map *map, int idx) +{ + return perf_stat__get_aggr(perf_stat__get_core, map, idx); +} + static int perf_stat_init_aggr_mode(void) { + int nr; + switch (stat_config.aggr_mode) { case AGGR_SOCKET: if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) { perror("cannot build socket map"); return -1; } - aggr_get_id = cpu_map__get_socket; + aggr_get_id = perf_stat__get_socket_cached; break; case AGGR_CORE: if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) { perror("cannot build core map"); return -1; } - aggr_get_id = cpu_map__get_core; + aggr_get_id = perf_stat__get_core_cached; break; case AGGR_NONE: case AGGR_GLOBAL: case AGGR_THREAD: + case AGGR_UNSET: default: break; } - return 0; + + /* + * The evsel_list->cpus is the base we operate on, + * taking the highest cpu number to be the size of + * the aggregation translate cpumap. + */ + nr = cpu_map__get_max(evsel_list->cpus); + cpus_aggr_map = cpu_map__empty_new(nr + 1); + return cpus_aggr_map ? 0 : -ENOMEM; } /* @@ -1127,69 +1238,6 @@ static int add_default_attributes(void) int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) { - bool append_file = false; - int output_fd = 0; - const char *output_name = NULL; - const struct option options[] = { - OPT_BOOLEAN('T', "transaction", &transaction_run, - "hardware transaction statistics"), - OPT_CALLBACK('e', "event", &evsel_list, "event", - "event selector. use 'perf list' to list available events", - parse_events_option), - OPT_CALLBACK(0, "filter", &evsel_list, "filter", - "event filter", parse_filter), - OPT_BOOLEAN('i', "no-inherit", &no_inherit, - "child tasks do not inherit counters"), - OPT_STRING('p', "pid", &target.pid, "pid", - "stat events on existing process id"), - OPT_STRING('t', "tid", &target.tid, "tid", - "stat events on existing thread id"), - OPT_BOOLEAN('a', "all-cpus", &target.system_wide, - "system-wide collection from all CPUs"), - OPT_BOOLEAN('g', "group", &group, - "put the counters into a counter group"), - OPT_BOOLEAN('c', "scale", &stat_config.scale, "scale/normalize counters"), - OPT_INCR('v', "verbose", &verbose, - "be more verbose (show counter open errors, etc)"), - OPT_INTEGER('r', "repeat", &run_count, - "repeat command and print average + stddev (max: 100, forever: 0)"), - OPT_BOOLEAN('n', "null", &null_run, - "null run - dont start any counters"), - OPT_INCR('d', "detailed", &detailed_run, - "detailed run - start a lot of events"), - OPT_BOOLEAN('S', "sync", &sync_run, - "call sync() before starting a run"), - OPT_CALLBACK_NOOPT('B', "big-num", NULL, NULL, - "print large numbers with thousands\' separators", - stat__set_big_num), - OPT_STRING('C', "cpu", &target.cpu_list, "cpu", - "list of cpus to monitor in system-wide"), - OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode, - "disable CPU count aggregation", AGGR_NONE), - OPT_STRING('x', "field-separator", &csv_sep, "separator", - "print counts with custom separator"), - OPT_CALLBACK('G', "cgroup", &evsel_list, "name", - "monitor event in cgroup name only", parse_cgroups), - OPT_STRING('o', "output", &output_name, "file", "output file name"), - OPT_BOOLEAN(0, "append", &append_file, "append to the output file"), - OPT_INTEGER(0, "log-fd", &output_fd, - "log output to fd, instead of stderr"), - OPT_STRING(0, "pre", &pre_cmd, "command", - "command to run prior to the measured command"), - OPT_STRING(0, "post", &post_cmd, "command", - "command to run after to the measured command"), - OPT_UINTEGER('I', "interval-print", &stat_config.interval, - "print counts at regular interval in ms (>= 100)"), - OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode, - "aggregate counts per processor socket", AGGR_SOCKET), - OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode, - "aggregate counts per physical processor core", AGGR_CORE), - OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode, - "aggregate counts per thread", AGGR_THREAD), - OPT_UINTEGER('D', "delay", &initial_delay, - "ms to wait before starting measurement after program start"), - OPT_END() - }; const char * const stat_usage[] = { "perf stat [<options>] [<command>]", NULL @@ -1205,7 +1253,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) if (evsel_list == NULL) return -ENOMEM; - argc = parse_options(argc, argv, options, stat_usage, + argc = parse_options(argc, argv, stat_options, stat_usage, PARSE_OPT_STOP_AT_NON_OPTION); interval = stat_config.interval; @@ -1215,14 +1263,14 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) if (output_name && output_fd) { fprintf(stderr, "cannot use both --output and --log-fd\n"); - parse_options_usage(stat_usage, options, "o", 1); - parse_options_usage(NULL, options, "log-fd", 0); + parse_options_usage(stat_usage, stat_options, "o", 1); + parse_options_usage(NULL, stat_options, "log-fd", 0); goto out; } if (output_fd < 0) { fprintf(stderr, "argument to --log-fd must be a > 0\n"); - parse_options_usage(stat_usage, options, "log-fd", 0); + parse_options_usage(stat_usage, stat_options, "log-fd", 0); goto out; } @@ -1262,8 +1310,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) /* User explicitly passed -B? */ if (big_num_opt == 1) { fprintf(stderr, "-B option not supported with -x\n"); - parse_options_usage(stat_usage, options, "B", 1); - parse_options_usage(NULL, options, "x", 1); + parse_options_usage(stat_usage, stat_options, "B", 1); + parse_options_usage(NULL, stat_options, "x", 1); goto out; } else /* Nope, so disable big number formatting */ big_num = false; @@ -1271,11 +1319,11 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) big_num = false; if (!argc && target__none(&target)) - usage_with_options(stat_usage, options); + usage_with_options(stat_usage, stat_options); if (run_count < 0) { pr_err("Run count must be a positive number\n"); - parse_options_usage(stat_usage, options, "r", 1); + parse_options_usage(stat_usage, stat_options, "r", 1); goto out; } else if (run_count == 0) { forever = true; @@ -1285,8 +1333,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) if ((stat_config.aggr_mode == AGGR_THREAD) && !target__has_task(&target)) { fprintf(stderr, "The --per-thread option is only available " "when monitoring via -p -t options.\n"); - parse_options_usage(NULL, options, "p", 1); - parse_options_usage(NULL, options, "t", 1); + parse_options_usage(NULL, stat_options, "p", 1); + parse_options_usage(NULL, stat_options, "t", 1); goto out; } @@ -1300,9 +1348,9 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) fprintf(stderr, "both cgroup and no-aggregation " "modes only available in system-wide mode\n"); - parse_options_usage(stat_usage, options, "G", 1); - parse_options_usage(NULL, options, "A", 1); - parse_options_usage(NULL, options, "a", 1); + parse_options_usage(stat_usage, stat_options, "G", 1); + parse_options_usage(NULL, stat_options, "A", 1); + parse_options_usage(NULL, stat_options, "a", 1); goto out; } @@ -1314,12 +1362,12 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) if (perf_evlist__create_maps(evsel_list, &target) < 0) { if (target__has_task(&target)) { pr_err("Problems finding threads of monitor\n"); - parse_options_usage(stat_usage, options, "p", 1); - parse_options_usage(NULL, options, "t", 1); + parse_options_usage(stat_usage, stat_options, "p", 1); + parse_options_usage(NULL, stat_options, "t", 1); } else if (target__has_cpu(&target)) { perror("failed to parse CPUs map"); - parse_options_usage(stat_usage, options, "C", 1); - parse_options_usage(NULL, options, "a", 1); + parse_options_usage(stat_usage, stat_options, "C", 1); + parse_options_usage(NULL, stat_options, "a", 1); } goto out; } @@ -1332,9 +1380,14 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) thread_map__read_comms(evsel_list->threads); if (interval && interval < 100) { - pr_err("print interval must be >= 100ms\n"); - parse_options_usage(stat_usage, options, "I", 1); - goto out; + if (interval < 10) { + pr_err("print interval must be >= 10ms\n"); + parse_options_usage(stat_usage, stat_options, "I", 1); + goto out; + } else + pr_warning("print interval < 100ms. " + "The overhead percentage could be high in some cases. " + "Please proceed with caution.\n"); } if (perf_evlist__alloc_stats(evsel_list, interval)) diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 8c465c83a..7e2e72e6d 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -655,7 +655,7 @@ static int symbol_filter(struct map *map, struct symbol *sym) { const char *name = sym->name; - if (!map->dso->kernel) + if (!__map__is_kernel(map)) return 0; /* * ppc64 uses function descriptors and appends a '.' to the @@ -857,9 +857,12 @@ static void perf_top__mmap_read_idx(struct perf_top *top, int idx) * TODO: we don't process guest user from host side * except simple counting. */ - /* Fall thru */ - default: goto next_event; + default: + if (event->header.type == PERF_RECORD_SAMPLE) + goto next_event; + machine = &session->machines.host; + break; } @@ -952,7 +955,7 @@ static int __cmd_top(struct perf_top *top) machines__set_symbol_filter(&top->session->machines, symbol_filter); if (!objdump_path) { - ret = perf_session_env__lookup_objdump(&top->session->header.env); + ret = perf_env__lookup_objdump(&top->session->header.env); if (ret) goto out_delete; } @@ -961,8 +964,18 @@ static int __cmd_top(struct perf_top *top) if (ret) goto out_delete; + if (perf_session__register_idle_thread(top->session) == NULL) + goto out_delete; + machine__synthesize_threads(&top->session->machines.host, &opts->target, top->evlist->threads, false, opts->proc_map_timeout); + + if (sort__has_socket) { + ret = perf_env__read_cpu_topology_map(&perf_env); + if (ret < 0) + goto out_err_cpu_topo; + } + ret = perf_top__start_counters(top); if (ret) goto out_delete; @@ -1020,6 +1033,14 @@ out_delete: top->session = NULL; return ret; + +out_err_cpu_topo: { + char errbuf[BUFSIZ]; + const char *err = strerror_r(-ret, errbuf, sizeof(errbuf)); + + ui__error("Could not read the CPU topology map: %s\n", err); + goto out_delete; +} } static int @@ -1032,8 +1053,22 @@ callchain_opt(const struct option *opt, const char *arg, int unset) static int parse_callchain_opt(const struct option *opt, const char *arg, int unset) { - symbol_conf.use_callchain = true; - return record_parse_callchain_opt(opt, arg, unset); + struct record_opts *record = (struct record_opts *)opt->value; + + record->callgraph_set = true; + callchain_param.enabled = !unset; + callchain_param.record_mode = CALLCHAIN_FP; + + /* + * --no-call-graph + */ + if (unset) { + symbol_conf.use_callchain = false; + callchain_param.record_mode = CALLCHAIN_NONE; + return 0; + } + + return parse_callchain_top_opt(arg); } static int perf_top_config(const char *var, const char *value, void *cb) @@ -1058,6 +1093,9 @@ parse_percent_limit(const struct option *opt, const char *arg, return 0; } +const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP + "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; + int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) { char errbuf[BUFSIZ]; @@ -1133,11 +1171,11 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, "Show a column with the number of samples"), OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts, - NULL, "enables call-graph recording", + NULL, "enables call-graph recording and display", &callchain_opt), OPT_CALLBACK(0, "call-graph", &top.record_opts, - "mode[,dump_size]", record_callchain_help, - &parse_callchain_opt), + "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", + top_callchain_help, &parse_callchain_opt), OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, "Accumulate callchains of children and show total overhead as well"), OPT_INTEGER(0, "max-stack", &top.max_stack, @@ -1267,6 +1305,9 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) perf_hpp__cancel_cumulate(); } + if (symbol_conf.cumulate_callchain && !callchain_param.order_set) + callchain_param.order = ORDER_CALLER; + symbol_conf.priv_size = sizeof(struct annotation); symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 4e3abba03..c783d8fd3 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -17,6 +17,7 @@ */ #include <traceevent/event-parse.h> +#include <api/fs/tracing_path.h> #include "builtin.h" #include "util/color.h" #include "util/debug.h" @@ -37,6 +38,7 @@ #include <stdlib.h> #include <sys/mman.h> #include <linux/futex.h> +#include <linux/err.h> /* For older distros: */ #ifndef MAP_STACK @@ -244,13 +246,14 @@ static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction, void struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction); /* older kernel (e.g., RHEL6) use syscalls:{enter,exit} */ - if (evsel == NULL) + if (IS_ERR(evsel)) evsel = perf_evsel__newtp("syscalls", direction); - if (evsel) { - if (perf_evsel__init_syscall_tp(evsel, handler)) - goto out_delete; - } + if (IS_ERR(evsel)) + return NULL; + + if (perf_evsel__init_syscall_tp(evsel, handler)) + goto out_delete; return evsel; @@ -582,6 +585,12 @@ static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct sysc #define SCA_FUTEX_OP syscall_arg__scnprintf_futex_op +static const char *bpf_cmd[] = { + "MAP_CREATE", "MAP_LOOKUP_ELEM", "MAP_UPDATE_ELEM", "MAP_DELETE_ELEM", + "MAP_GET_NEXT_KEY", "PROG_LOAD", +}; +static DEFINE_STRARRAY(bpf_cmd); + static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", }; static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1); @@ -1008,6 +1017,7 @@ static struct syscall_fmt { .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ [1] = SCA_ACCMODE, /* mode */ }, }, { .name = "arch_prctl", .errmsg = true, .alias = "prctl", }, + { .name = "bpf", .errmsg = true, STRARRAY(0, cmd, bpf_cmd), }, { .name = "brk", .hexret = true, .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, }, { .name = "chdir", .errmsg = true, @@ -1704,12 +1714,12 @@ static int trace__read_syscall_info(struct trace *trace, int id) snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name); sc->tp_format = trace_event__tp_format("syscalls", tp_name); - if (sc->tp_format == NULL && sc->fmt && sc->fmt->alias) { + if (IS_ERR(sc->tp_format) && sc->fmt && sc->fmt->alias) { snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->fmt->alias); sc->tp_format = trace_event__tp_format("syscalls", tp_name); } - if (sc->tp_format == NULL) + if (IS_ERR(sc->tp_format)) return -1; sc->args = sc->tp_format->format.fields; @@ -2389,7 +2399,8 @@ static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp); static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist) { struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname"); - if (evsel == NULL) + + if (IS_ERR(evsel)) return false; if (perf_evsel__field(evsel, "pathname") == NULL) { @@ -2686,11 +2697,11 @@ out_delete_evlist: char errbuf[BUFSIZ]; out_error_sched_stat_runtime: - debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime"); + tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "sched", "sched_stat_runtime"); goto out_error; out_error_raw_syscalls: - debugfs__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)"); + tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "raw_syscalls", "sys_(enter|exit)"); goto out_error; out_error_mmap: diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile index 38a08539f..de89ec574 100644 --- a/tools/perf/config/Makefile +++ b/tools/perf/config/Makefile @@ -106,9 +106,14 @@ ifdef LIBBABELTRACE FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf endif +FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/arch/$(ARCH)/include/uapi -I$(srctree)/include/uapi # include ARCH specific config -include $(src-perf)/arch/$(ARCH)/Makefile +ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET + CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET +endif + include $(src-perf)/config/utilities.mak ifeq ($(call get-executable,$(FLEX)),) @@ -233,6 +238,7 @@ ifdef NO_LIBELF NO_DEMANGLE := 1 NO_LIBUNWIND := 1 NO_LIBDW_DWARF_UNWIND := 1 + NO_LIBBPF := 1 else ifeq ($(feature-libelf), 0) ifeq ($(feature-glibc), 1) @@ -242,13 +248,14 @@ else LIBC_SUPPORT := 1 endif ifeq ($(LIBC_SUPPORT),1) - msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev); + msg := $(warning No libelf found, disables 'probe' tool and BPF support in 'perf record', please install elfutils-libelf-devel/libelf-dev); NO_LIBELF := 1 NO_DWARF := 1 NO_DEMANGLE := 1 NO_LIBUNWIND := 1 NO_LIBDW_DWARF_UNWIND := 1 + NO_LIBBPF := 1 else ifneq ($(filter s% -static%,$(LDFLAGS),),) msg := $(error No static glibc found, please install glibc-static); @@ -305,6 +312,13 @@ ifndef NO_LIBELF $(call detected,CONFIG_DWARF) endif # PERF_HAVE_DWARF_REGS endif # NO_DWARF + + ifndef NO_LIBBPF + ifeq ($(feature-bpf), 1) + CFLAGS += -DHAVE_LIBBPF_SUPPORT + $(call detected,CONFIG_LIBBPF) + endif + endif # NO_LIBBPF endif # NO_LIBELF ifeq ($(ARCH),powerpc) @@ -320,6 +334,13 @@ ifndef NO_LIBUNWIND endif endif +ifndef NO_LIBBPF + ifneq ($(feature-bpf), 1) + msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.) + NO_LIBBPF := 1 + endif +endif + dwarf-post-unwind := 1 dwarf-post-unwind-text := BUG diff --git a/tools/perf/perf.c b/tools/perf/perf.c index 07dbff5c0..3d4c7c09a 100644 --- a/tools/perf/perf.c +++ b/tools/perf/perf.c @@ -8,14 +8,16 @@ */ #include "builtin.h" +#include "util/env.h" #include "util/exec_cmd.h" #include "util/cache.h" #include "util/quote.h" #include "util/run-command.h" #include "util/parse-events.h" #include "util/parse-options.h" +#include "util/bpf-loader.h" #include "util/debug.h" -#include <api/fs/debugfs.h> +#include <api/fs/tracing_path.h> #include <pthread.h> const char perf_usage_string[] = @@ -161,6 +163,20 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) break; /* + * Shortcut for '-h' and '-v' options to invoke help + * and version command. + */ + if (!strcmp(cmd, "-h")) { + (*argv)[0] = "--help"; + break; + } + + if (!strcmp(cmd, "-v")) { + (*argv)[0] = "--version"; + break; + } + + /* * Check remaining flags. */ if (!prefixcmp(cmd, CMD_EXEC_PATH)) { @@ -214,7 +230,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) fprintf(stderr, "No directory given for --debugfs-dir.\n"); usage(perf_usage_string); } - perf_debugfs_set_path((*argv)[1]); + tracing_path_set((*argv)[1]); if (envchanged) *envchanged = 1; (*argv)++; @@ -230,7 +246,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged) (*argv)++; (*argc)--; } else if (!prefixcmp(cmd, CMD_DEBUGFS_DIR)) { - perf_debugfs_set_path(cmd + strlen(CMD_DEBUGFS_DIR)); + tracing_path_set(cmd + strlen(CMD_DEBUGFS_DIR)); fprintf(stderr, "dir: %s\n", tracing_path); if (envchanged) *envchanged = 1; @@ -369,6 +385,8 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv) status = p->fn(argc, argv, prefix); exit_browser(status); + perf_env__exit(&perf_env); + bpf__clear(); if (status) return status & 0xff; @@ -517,8 +535,10 @@ int main(int argc, const char **argv) cmd = perf_extract_argv0_path(argv[0]); if (!cmd) cmd = "perf-help"; - /* get debugfs mount point from /proc/mounts */ - perf_debugfs_mount(NULL); + + /* get debugfs/tracefs mount point from /proc/mounts */ + tracing_path_mount(); + /* * "perf-xxxx" is the same as "perf xxxx", but we obviously: * diff --git a/tools/perf/python/twatch.py b/tools/perf/python/twatch.py index b9d508336..c235c22b1 100755 --- a/tools/perf/python/twatch.py +++ b/tools/perf/python/twatch.py @@ -15,14 +15,14 @@ import perf -def main(): +def main(context_switch = 0, thread = -1): cpus = perf.cpu_map() - threads = perf.thread_map() + threads = perf.thread_map(thread) evsel = perf.evsel(type = perf.TYPE_SOFTWARE, config = perf.COUNT_SW_DUMMY, task = 1, comm = 1, mmap = 0, freq = 0, wakeup_events = 1, watermark = 1, - sample_id_all = 1, + sample_id_all = 1, context_switch = context_switch, sample_type = perf.SAMPLE_PERIOD | perf.SAMPLE_TID | perf.SAMPLE_CPU) """What we want are just the PERF_RECORD_ lifetime events for threads, @@ -48,4 +48,21 @@ def main(): print event if __name__ == '__main__': + """ + To test the PERF_RECORD_SWITCH record, pick a pid and replace + in the following line. + + Example output: + +cpu: 3, pid: 31463, tid: 31593 { type: context_switch, next_prev_pid: 31463, next_prev_tid: 31593, switch_out: 1 } +cpu: 1, pid: 31463, tid: 31489 { type: context_switch, next_prev_pid: 31463, next_prev_tid: 31489, switch_out: 1 } +cpu: 2, pid: 31463, tid: 31496 { type: context_switch, next_prev_pid: 31463, next_prev_tid: 31496, switch_out: 1 } +cpu: 3, pid: 31463, tid: 31491 { type: context_switch, next_prev_pid: 31463, next_prev_tid: 31491, switch_out: 0 } + + It is possible as well to use event.misc & perf.PERF_RECORD_MISC_SWITCH_OUT + to figure out if this is a context switch in or out of the monitored threads. + + If bored, please add command line option parsing support for these options :-) + """ + # main(context_switch = 1, thread = 31463) main() diff --git a/tools/perf/scripts/python/export-to-postgresql.py b/tools/perf/scripts/python/export-to-postgresql.py index 84a32037a..1b02cdc0c 100644 --- a/tools/perf/scripts/python/export-to-postgresql.py +++ b/tools/perf/scripts/python/export-to-postgresql.py @@ -61,6 +61,142 @@ import datetime # # An example of using the database is provided by the script # call-graph-from-postgresql.py. Refer to that script for details. +# +# Tables: +# +# The tables largely correspond to perf tools' data structures. They are largely self-explanatory. +# +# samples +# +# 'samples' is the main table. It represents what instruction was executing at a point in time +# when something (a selected event) happened. The memory address is the instruction pointer or 'ip'. +# +# calls +# +# 'calls' represents function calls and is related to 'samples' by 'call_id' and 'return_id'. +# 'calls' is only created when the 'calls' option to this script is specified. +# +# call_paths +# +# 'call_paths' represents all the call stacks. Each 'call' has an associated record in 'call_paths'. +# 'calls_paths' is only created when the 'calls' option to this script is specified. +# +# branch_types +# +# 'branch_types' provides descriptions for each type of branch. +# +# comm_threads +# +# 'comm_threads' shows how 'comms' relates to 'threads'. +# +# comms +# +# 'comms' contains a record for each 'comm' - the name given to the executable that is running. +# +# dsos +# +# 'dsos' contains a record for each executable file or library. +# +# machines +# +# 'machines' can be used to distinguish virtual machines if virtualization is supported. +# +# selected_events +# +# 'selected_events' contains a record for each kind of event that has been sampled. +# +# symbols +# +# 'symbols' contains a record for each symbol. Only symbols that have samples are present. +# +# threads +# +# 'threads' contains a record for each thread. +# +# Views: +# +# Most of the tables have views for more friendly display. The views are: +# +# calls_view +# call_paths_view +# comm_threads_view +# dsos_view +# machines_view +# samples_view +# symbols_view +# threads_view +# +# More examples of browsing the database with psql: +# Note that some of the examples are not the most optimal SQL query. +# Note that call information is only available if the script's 'calls' option has been used. +# +# Top 10 function calls (not aggregated by symbol): +# +# SELECT * FROM calls_view ORDER BY elapsed_time DESC LIMIT 10; +# +# Top 10 function calls (aggregated by symbol): +# +# SELECT symbol_id,(SELECT name FROM symbols WHERE id = symbol_id) AS symbol, +# SUM(elapsed_time) AS tot_elapsed_time,SUM(branch_count) AS tot_branch_count +# FROM calls_view GROUP BY symbol_id ORDER BY tot_elapsed_time DESC LIMIT 10; +# +# Note that the branch count gives a rough estimation of cpu usage, so functions +# that took a long time but have a relatively low branch count must have spent time +# waiting. +# +# Find symbols by pattern matching on part of the name (e.g. names containing 'alloc'): +# +# SELECT * FROM symbols_view WHERE name LIKE '%alloc%'; +# +# Top 10 function calls for a specific symbol (e.g. whose symbol_id is 187): +# +# SELECT * FROM calls_view WHERE symbol_id = 187 ORDER BY elapsed_time DESC LIMIT 10; +# +# Show function calls made by function in the same context (i.e. same call path) (e.g. one with call_path_id 254): +# +# SELECT * FROM calls_view WHERE parent_call_path_id = 254; +# +# Show branches made during a function call (e.g. where call_id is 29357 and return_id is 29370 and tid is 29670) +# +# SELECT * FROM samples_view WHERE id >= 29357 AND id <= 29370 AND tid = 29670 AND event LIKE 'branches%'; +# +# Show transactions: +# +# SELECT * FROM samples_view WHERE event = 'transactions'; +# +# Note transaction start has 'in_tx' true whereas, transaction end has 'in_tx' false. +# Transaction aborts have branch_type_name 'transaction abort' +# +# Show transaction aborts: +# +# SELECT * FROM samples_view WHERE event = 'transactions' AND branch_type_name = 'transaction abort'; +# +# To print a call stack requires walking the call_paths table. For example this python script: +# #!/usr/bin/python2 +# +# import sys +# from PySide.QtSql import * +# +# if __name__ == '__main__': +# if (len(sys.argv) < 3): +# print >> sys.stderr, "Usage is: printcallstack.py <database name> <call_path_id>" +# raise Exception("Too few arguments") +# dbname = sys.argv[1] +# call_path_id = sys.argv[2] +# db = QSqlDatabase.addDatabase('QPSQL') +# db.setDatabaseName(dbname) +# if not db.open(): +# raise Exception("Failed to open database " + dbname + " error: " + db.lastError().text()) +# query = QSqlQuery(db) +# print " id ip symbol_id symbol dso_id dso_short_name" +# while call_path_id != 0 and call_path_id != 1: +# ret = query.exec_('SELECT * FROM call_paths_view WHERE id = ' + str(call_path_id)) +# if not ret: +# raise Exception("Query failed: " + query.lastError().text()) +# if not query.next(): +# raise Exception("Query failed") +# print "{0:>6} {1:>10} {2:>9} {3:<30} {4:>6} {5:<30}".format(query.value(0), query.value(1), query.value(2), query.value(3), query.value(4), query.value(5)) +# call_path_id = query.value(6) from PySide.QtSql import * @@ -244,6 +380,91 @@ if perf_db_export_calls: 'parent_call_path_id bigint,' 'flags integer)') +do_query(query, 'CREATE VIEW machines_view AS ' + 'SELECT ' + 'id,' + 'pid,' + 'root_dir,' + 'CASE WHEN id=0 THEN \'unknown\' WHEN pid=-1 THEN \'host\' ELSE \'guest\' END AS host_or_guest' + ' FROM machines') + +do_query(query, 'CREATE VIEW dsos_view AS ' + 'SELECT ' + 'id,' + 'machine_id,' + '(SELECT host_or_guest FROM machines_view WHERE id = machine_id) AS host_or_guest,' + 'short_name,' + 'long_name,' + 'build_id' + ' FROM dsos') + +do_query(query, 'CREATE VIEW symbols_view AS ' + 'SELECT ' + 'id,' + 'name,' + '(SELECT short_name FROM dsos WHERE id=dso_id) AS dso,' + 'dso_id,' + 'sym_start,' + 'sym_end,' + 'CASE WHEN binding=0 THEN \'local\' WHEN binding=1 THEN \'global\' ELSE \'weak\' END AS binding' + ' FROM symbols') + +do_query(query, 'CREATE VIEW threads_view AS ' + 'SELECT ' + 'id,' + 'machine_id,' + '(SELECT host_or_guest FROM machines_view WHERE id = machine_id) AS host_or_guest,' + 'process_id,' + 'pid,' + 'tid' + ' FROM threads') + +do_query(query, 'CREATE VIEW comm_threads_view AS ' + 'SELECT ' + 'comm_id,' + '(SELECT comm FROM comms WHERE id = comm_id) AS command,' + 'thread_id,' + '(SELECT pid FROM threads WHERE id = thread_id) AS pid,' + '(SELECT tid FROM threads WHERE id = thread_id) AS tid' + ' FROM comm_threads') + +if perf_db_export_calls: + do_query(query, 'CREATE VIEW call_paths_view AS ' + 'SELECT ' + 'c.id,' + 'to_hex(c.ip) AS ip,' + 'c.symbol_id,' + '(SELECT name FROM symbols WHERE id = c.symbol_id) AS symbol,' + '(SELECT dso_id FROM symbols WHERE id = c.symbol_id) AS dso_id,' + '(SELECT dso FROM symbols_view WHERE id = c.symbol_id) AS dso_short_name,' + 'c.parent_id,' + 'to_hex(p.ip) AS parent_ip,' + 'p.symbol_id AS parent_symbol_id,' + '(SELECT name FROM symbols WHERE id = p.symbol_id) AS parent_symbol,' + '(SELECT dso_id FROM symbols WHERE id = p.symbol_id) AS parent_dso_id,' + '(SELECT dso FROM symbols_view WHERE id = p.symbol_id) AS parent_dso_short_name' + ' FROM call_paths c INNER JOIN call_paths p ON p.id = c.parent_id') + do_query(query, 'CREATE VIEW calls_view AS ' + 'SELECT ' + 'calls.id,' + 'thread_id,' + '(SELECT pid FROM threads WHERE id = thread_id) AS pid,' + '(SELECT tid FROM threads WHERE id = thread_id) AS tid,' + '(SELECT comm FROM comms WHERE id = comm_id) AS command,' + 'call_path_id,' + 'to_hex(ip) AS ip,' + 'symbol_id,' + '(SELECT name FROM symbols WHERE id = symbol_id) AS symbol,' + 'call_time,' + 'return_time,' + 'return_time - call_time AS elapsed_time,' + 'branch_count,' + 'call_id,' + 'return_id,' + 'CASE WHEN flags=1 THEN \'no call\' WHEN flags=2 THEN \'no return\' WHEN flags=3 THEN \'no call/return\' ELSE \'\' END AS flags,' + 'parent_call_path_id' + ' FROM calls INNER JOIN call_paths ON call_paths.id = call_path_id') + do_query(query, 'CREATE VIEW samples_view AS ' 'SELECT ' 'id,' diff --git a/tools/perf/tests/.gitignore b/tools/perf/tests/.gitignore new file mode 100644 index 000000000..489fc9ffb --- /dev/null +++ b/tools/perf/tests/.gitignore @@ -0,0 +1,2 @@ +llvm-src-base.c +llvm-src-kbuild.c diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build index c1518bdd0..f41ebf884 100644 --- a/tools/perf/tests/Build +++ b/tools/perf/tests/Build @@ -8,7 +8,6 @@ perf-y += openat-syscall-all-cpus.o perf-y += openat-syscall-tp-fields.o perf-y += mmap-basic.o perf-y += perf-record.o -perf-y += rdpmc.o perf-y += evsel-roundtrip-name.o perf-y += evsel-tp-sched.o perf-y += fdarray.o @@ -32,9 +31,23 @@ perf-y += sample-parsing.o perf-y += parse-no-sample-id-all.o perf-y += kmod-path.o perf-y += thread-map.o -perf-y += llvm.o +perf-y += llvm.o llvm-src-base.o llvm-src-kbuild.o +perf-y += bpf.o +perf-y += topology.o -perf-$(CONFIG_X86) += perf-time-to-tsc.o +$(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c + $(call rule_mkdir) + $(Q)echo '#include <tests/llvm.h>' > $@ + $(Q)echo 'const char test_llvm__bpf_base_prog[] =' >> $@ + $(Q)sed -e 's/"/\\"/g' -e 's/\(.*\)/"\1\\n"/g' $< >> $@ + $(Q)echo ';' >> $@ + +$(OUTPUT)tests/llvm-src-kbuild.c: tests/bpf-script-test-kbuild.c + $(call rule_mkdir) + $(Q)echo '#include <tests/llvm.h>' > $@ + $(Q)echo 'const char test_llvm__bpf_test_kbuild_prog[] =' >> $@ + $(Q)sed -e 's/"/\\"/g' -e 's/\(.*\)/"\1\\n"/g' $< >> $@ + $(Q)echo ';' >> $@ ifeq ($(ARCH),$(filter $(ARCH),x86 arm arm64)) perf-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o diff --git a/tools/perf/tests/attr.c b/tools/perf/tests/attr.c index 2dfc9ad0e..638875a09 100644 --- a/tools/perf/tests/attr.c +++ b/tools/perf/tests/attr.c @@ -171,6 +171,5 @@ int test__attr(void) !lstat(path_perf, &st)) return run_dir(path_dir, path_perf); - fprintf(stderr, " (omitted)"); - return 0; + return TEST_SKIP; } diff --git a/tools/perf/tests/bpf-script-example.c b/tools/perf/tests/bpf-script-example.c new file mode 100644 index 000000000..0ec9c2c03 --- /dev/null +++ b/tools/perf/tests/bpf-script-example.c @@ -0,0 +1,48 @@ +/* + * bpf-script-example.c + * Test basic LLVM building + */ +#ifndef LINUX_VERSION_CODE +# error Need LINUX_VERSION_CODE +# error Example: for 4.2 kernel, put 'clang-opt="-DLINUX_VERSION_CODE=0x40200" into llvm section of ~/.perfconfig' +#endif +#define BPF_ANY 0 +#define BPF_MAP_TYPE_ARRAY 2 +#define BPF_FUNC_map_lookup_elem 1 +#define BPF_FUNC_map_update_elem 2 + +static void *(*bpf_map_lookup_elem)(void *map, void *key) = + (void *) BPF_FUNC_map_lookup_elem; +static void *(*bpf_map_update_elem)(void *map, void *key, void *value, int flags) = + (void *) BPF_FUNC_map_update_elem; + +struct bpf_map_def { + unsigned int type; + unsigned int key_size; + unsigned int value_size; + unsigned int max_entries; +}; + +#define SEC(NAME) __attribute__((section(NAME), used)) +struct bpf_map_def SEC("maps") flip_table = { + .type = BPF_MAP_TYPE_ARRAY, + .key_size = sizeof(int), + .value_size = sizeof(int), + .max_entries = 1, +}; + +SEC("func=sys_epoll_pwait") +int bpf_func__sys_epoll_pwait(void *ctx) +{ + int ind =0; + int *flag = bpf_map_lookup_elem(&flip_table, &ind); + int new_flag; + if (!flag) + return 0; + /* flip flag and store back */ + new_flag = !*flag; + bpf_map_update_elem(&flip_table, &ind, &new_flag, BPF_ANY); + return new_flag; +} +char _license[] SEC("license") = "GPL"; +int _version SEC("version") = LINUX_VERSION_CODE; diff --git a/tools/perf/tests/bpf-script-test-kbuild.c b/tools/perf/tests/bpf-script-test-kbuild.c new file mode 100644 index 000000000..362692474 --- /dev/null +++ b/tools/perf/tests/bpf-script-test-kbuild.c @@ -0,0 +1,21 @@ +/* + * bpf-script-test-kbuild.c + * Test include from kernel header + */ +#ifndef LINUX_VERSION_CODE +# error Need LINUX_VERSION_CODE +# error Example: for 4.2 kernel, put 'clang-opt="-DLINUX_VERSION_CODE=0x40200" into llvm section of ~/.perfconfig' +#endif +#define SEC(NAME) __attribute__((section(NAME), used)) + +#include <uapi/linux/fs.h> +#include <uapi/asm/ptrace.h> + +SEC("func=vfs_llseek") +int bpf_func__vfs_llseek(void *ctx) +{ + return 0; +} + +char _license[] SEC("license") = "GPL"; +int _version SEC("version") = LINUX_VERSION_CODE; diff --git a/tools/perf/tests/bpf.c b/tools/perf/tests/bpf.c new file mode 100644 index 000000000..ec16f7812 --- /dev/null +++ b/tools/perf/tests/bpf.c @@ -0,0 +1,209 @@ +#include <stdio.h> +#include <sys/epoll.h> +#include <util/bpf-loader.h> +#include <util/evlist.h> +#include "tests.h" +#include "llvm.h" +#include "debug.h" +#define NR_ITERS 111 + +#ifdef HAVE_LIBBPF_SUPPORT + +static int epoll_pwait_loop(void) +{ + int i; + + /* Should fail NR_ITERS times */ + for (i = 0; i < NR_ITERS; i++) + epoll_pwait(-(i + 1), NULL, 0, 0, NULL); + return 0; +} + +static struct { + enum test_llvm__testcase prog_id; + const char *desc; + const char *name; + const char *msg_compile_fail; + const char *msg_load_fail; + int (*target_func)(void); + int expect_result; +} bpf_testcase_table[] = { + { + LLVM_TESTCASE_BASE, + "Test basic BPF filtering", + "[basic_bpf_test]", + "fix 'perf test LLVM' first", + "load bpf object failed", + &epoll_pwait_loop, + (NR_ITERS + 1) / 2, + }, +}; + +static int do_test(struct bpf_object *obj, int (*func)(void), + int expect) +{ + struct record_opts opts = { + .target = { + .uid = UINT_MAX, + .uses_mmap = true, + }, + .freq = 0, + .mmap_pages = 256, + .default_interval = 1, + }; + + char pid[16]; + char sbuf[STRERR_BUFSIZE]; + struct perf_evlist *evlist; + int i, ret = TEST_FAIL, err = 0, count = 0; + + struct parse_events_evlist parse_evlist; + struct parse_events_error parse_error; + + bzero(&parse_error, sizeof(parse_error)); + bzero(&parse_evlist, sizeof(parse_evlist)); + parse_evlist.error = &parse_error; + INIT_LIST_HEAD(&parse_evlist.list); + + err = parse_events_load_bpf_obj(&parse_evlist, &parse_evlist.list, obj); + if (err || list_empty(&parse_evlist.list)) { + pr_debug("Failed to add events selected by BPF\n"); + if (!err) + return TEST_FAIL; + } + + snprintf(pid, sizeof(pid), "%d", getpid()); + pid[sizeof(pid) - 1] = '\0'; + opts.target.tid = opts.target.pid = pid; + + /* Instead of perf_evlist__new_default, don't add default events */ + evlist = perf_evlist__new(); + if (!evlist) { + pr_debug("No ehough memory to create evlist\n"); + return TEST_FAIL; + } + + err = perf_evlist__create_maps(evlist, &opts.target); + if (err < 0) { + pr_debug("Not enough memory to create thread/cpu maps\n"); + goto out_delete_evlist; + } + + perf_evlist__splice_list_tail(evlist, &parse_evlist.list); + evlist->nr_groups = parse_evlist.nr_groups; + + perf_evlist__config(evlist, &opts); + + err = perf_evlist__open(evlist); + if (err < 0) { + pr_debug("perf_evlist__open: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); + goto out_delete_evlist; + } + + err = perf_evlist__mmap(evlist, opts.mmap_pages, false); + if (err < 0) { + pr_debug("perf_evlist__mmap: %s\n", + strerror_r(errno, sbuf, sizeof(sbuf))); + goto out_delete_evlist; + } + + perf_evlist__enable(evlist); + (*func)(); + perf_evlist__disable(evlist); + + for (i = 0; i < evlist->nr_mmaps; i++) { + union perf_event *event; + + while ((event = perf_evlist__mmap_read(evlist, i)) != NULL) { + const u32 type = event->header.type; + + if (type == PERF_RECORD_SAMPLE) + count ++; + } + } + + if (count != expect) + pr_debug("BPF filter result incorrect\n"); + + ret = TEST_OK; + +out_delete_evlist: + perf_evlist__delete(evlist); + return ret; +} + +static struct bpf_object * +prepare_bpf(void *obj_buf, size_t obj_buf_sz, const char *name) +{ + struct bpf_object *obj; + + obj = bpf__prepare_load_buffer(obj_buf, obj_buf_sz, name); + if (IS_ERR(obj)) { + pr_debug("Compile BPF program failed.\n"); + return NULL; + } + return obj; +} + +static int __test__bpf(int index) +{ + int ret; + void *obj_buf; + size_t obj_buf_sz; + struct bpf_object *obj; + + ret = test_llvm__fetch_bpf_obj(&obj_buf, &obj_buf_sz, + bpf_testcase_table[index].prog_id, + true); + if (ret != TEST_OK || !obj_buf || !obj_buf_sz) { + pr_debug("Unable to get BPF object, %s\n", + bpf_testcase_table[index].msg_compile_fail); + if (index == 0) + return TEST_SKIP; + else + return TEST_FAIL; + } + + obj = prepare_bpf(obj_buf, obj_buf_sz, + bpf_testcase_table[index].name); + if (!obj) { + ret = TEST_FAIL; + goto out; + } + + ret = do_test(obj, + bpf_testcase_table[index].target_func, + bpf_testcase_table[index].expect_result); +out: + bpf__clear(); + return ret; +} + +int test__bpf(void) +{ + unsigned int i; + int err; + + if (geteuid() != 0) { + pr_debug("Only root can run BPF test\n"); + return TEST_SKIP; + } + + for (i = 0; i < ARRAY_SIZE(bpf_testcase_table); i++) { + err = __test__bpf(i); + + if (err != TEST_OK) + return err; + } + + return TEST_OK; +} + +#else +int test__bpf(void) +{ + pr_debug("Skip BPF test because BPF support is not compiled\n"); + return TEST_SKIP; +} +#endif diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 136cd934b..80c442eab 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -14,10 +14,13 @@ #include "parse-options.h" #include "symbol.h" -static struct test { - const char *desc; - int (*func)(void); -} tests[] = { +struct test __weak arch_tests[] = { + { + .func = NULL, + }, +}; + +static struct test generic_tests[] = { { .desc = "vmlinux symtab matches kallsyms", .func = test__vmlinux_matches_kallsyms, @@ -38,12 +41,6 @@ static struct test { .desc = "parse events tests", .func = test__parse_events, }, -#if defined(__x86_64__) || defined(__i386__) - { - .desc = "x86 rdpmc test", - .func = test__rdpmc, - }, -#endif { .desc = "Validate PERF_RECORD_* events & perf_sample fields", .func = test__PERF_RECORD, @@ -104,12 +101,6 @@ static struct test { .desc = "Test software clock events have valid period values", .func = test__sw_clock_freq, }, -#if defined(__x86_64__) || defined(__i386__) - { - .desc = "Test converting perf time to TSC", - .func = test__perf_time_to_tsc, - }, -#endif { .desc = "Test object code reading", .func = test__code_reading, @@ -126,14 +117,6 @@ static struct test { .desc = "Test parsing with no sample_id_all bit set", .func = test__parse_no_sample_id_all, }, -#if defined(__x86_64__) || defined(__i386__) || defined(__arm__) || defined(__aarch64__) -#ifdef HAVE_DWARF_UNWIND_SUPPORT - { - .desc = "Test dwarf unwind", - .func = test__dwarf_unwind, - }, -#endif -#endif { .desc = "Test filtering hist entries", .func = test__hists_filter, @@ -179,11 +162,24 @@ static struct test { .func = test__llvm, }, { + .desc = "Test topology in session", + .func = test_session_topology, + }, + { + .desc = "Test BPF filter", + .func = test__bpf, + }, + { .func = NULL, }, }; -static bool perf_test__matches(int curr, int argc, const char *argv[]) +static struct test *tests[] = { + generic_tests, + arch_tests, +}; + +static bool perf_test__matches(struct test *test, int curr, int argc, const char *argv[]) { int i; @@ -200,7 +196,7 @@ static bool perf_test__matches(int curr, int argc, const char *argv[]) continue; } - if (strstr(tests[curr].desc, argv[i])) + if (strcasestr(test->desc, argv[i])) return true; } @@ -237,27 +233,31 @@ static int run_test(struct test *test) return err; } +#define for_each_test(j, t) \ + for (j = 0; j < ARRAY_SIZE(tests); j++) \ + for (t = &tests[j][0]; t->func; t++) + static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist) { + struct test *t; + unsigned int j; int i = 0; int width = 0; - while (tests[i].func) { - int len = strlen(tests[i].desc); + for_each_test(j, t) { + int len = strlen(t->desc); if (width < len) width = len; - ++i; } - i = 0; - while (tests[i].func) { + for_each_test(j, t) { int curr = i++, err; - if (!perf_test__matches(curr, argc, argv)) + if (!perf_test__matches(t, curr, argc, argv)) continue; - pr_info("%2d: %-*s:", i, width, tests[curr].desc); + pr_info("%2d: %-*s:", i, width, t->desc); if (intlist__find(skiplist, i)) { color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n"); @@ -265,8 +265,8 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist) } pr_debug("\n--- start ---\n"); - err = run_test(&tests[curr]); - pr_debug("---- end ----\n%s:", tests[curr].desc); + err = run_test(t); + pr_debug("---- end ----\n%s:", t->desc); switch (err) { case TEST_OK: @@ -287,15 +287,15 @@ static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist) static int perf_test__list(int argc, const char **argv) { + unsigned int j; + struct test *t; int i = 0; - while (tests[i].func) { - int curr = i++; - - if (argc > 1 && !strstr(tests[curr].desc, argv[1])) + for_each_test(j, t) { + if (argc > 1 && !strstr(t->desc, argv[1])) continue; - pr_info("%2d: %s\n", i, tests[curr].desc); + pr_info("%2d: %s\n", ++i, t->desc); } return 0; diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c index 39c784a10..a767a6400 100644 --- a/tools/perf/tests/code-reading.c +++ b/tools/perf/tests/code-reading.c @@ -33,20 +33,20 @@ static unsigned int hex(char c) return c - 'A' + 10; } -static void read_objdump_line(const char *line, size_t line_len, void **buf, - size_t *len) +static size_t read_objdump_line(const char *line, size_t line_len, void *buf, + size_t len) { const char *p; - size_t i; + size_t i, j = 0; /* Skip to a colon */ p = strchr(line, ':'); if (!p) - return; + return 0; i = p + 1 - line; /* Read bytes */ - while (*len) { + while (j < len) { char c1, c2; /* Skip spaces */ @@ -65,20 +65,26 @@ static void read_objdump_line(const char *line, size_t line_len, void **buf, if (i < line_len && line[i] && !isspace(line[i])) break; /* Store byte */ - *(unsigned char *)*buf = (hex(c1) << 4) | hex(c2); - *buf += 1; - *len -= 1; + *(unsigned char *)buf = (hex(c1) << 4) | hex(c2); + buf += 1; + j++; } + /* return number of successfully read bytes */ + return j; } -static int read_objdump_output(FILE *f, void **buf, size_t *len) +static int read_objdump_output(FILE *f, void *buf, size_t *len, u64 start_addr) { char *line = NULL; - size_t line_len; + size_t line_len, off_last = 0; ssize_t ret; int err = 0; + u64 addr, last_addr = start_addr; + + while (off_last < *len) { + size_t off, read_bytes, written_bytes; + unsigned char tmp[BUFSZ]; - while (1) { ret = getline(&line, &line_len, f); if (feof(f)) break; @@ -87,9 +93,33 @@ static int read_objdump_output(FILE *f, void **buf, size_t *len) err = -1; break; } - read_objdump_line(line, ret, buf, len); + + /* read objdump data into temporary buffer */ + read_bytes = read_objdump_line(line, ret, tmp, sizeof(tmp)); + if (!read_bytes) + continue; + + if (sscanf(line, "%"PRIx64, &addr) != 1) + continue; + if (addr < last_addr) { + pr_debug("addr going backwards, read beyond section?\n"); + break; + } + last_addr = addr; + + /* copy it from temporary buffer to 'buf' according + * to address on current objdump line */ + off = addr - start_addr; + if (off >= *len) + break; + written_bytes = MIN(read_bytes, *len - off); + memcpy(buf + off, tmp, written_bytes); + off_last = off + written_bytes; } + /* len returns number of bytes that could not be read */ + *len -= off_last; + free(line); return err; @@ -103,7 +133,7 @@ static int read_via_objdump(const char *filename, u64 addr, void *buf, FILE *f; int ret; - fmt = "%s -d --start-address=0x%"PRIx64" --stop-address=0x%"PRIx64" %s"; + fmt = "%s -z -d --start-address=0x%"PRIx64" --stop-address=0x%"PRIx64" %s"; ret = snprintf(cmd, sizeof(cmd), fmt, "objdump", addr, addr + len, filename); if (ret <= 0 || (size_t)ret >= sizeof(cmd)) @@ -120,7 +150,7 @@ static int read_via_objdump(const char *filename, u64 addr, void *buf, return -1; } - ret = read_objdump_output(f, &buf, &len); + ret = read_objdump_output(f, buf, &len, addr); if (len) { pr_debug("objdump read too few bytes\n"); if (!ret) @@ -132,6 +162,18 @@ static int read_via_objdump(const char *filename, u64 addr, void *buf, return ret; } +static void dump_buf(unsigned char *buf, size_t len) +{ + size_t i; + + for (i = 0; i < len; i++) { + pr_debug("0x%02x ", buf[i]); + if (i % 16 == 15) + pr_debug("\n"); + } + pr_debug("\n"); +} + static int read_object_code(u64 addr, size_t len, u8 cpumode, struct thread *thread, struct state *state) { @@ -234,6 +276,10 @@ static int read_object_code(u64 addr, size_t len, u8 cpumode, /* The results should be identical */ if (memcmp(buf1, buf2, len)) { pr_debug("Bytes read differ from those read by objdump\n"); + pr_debug("buf1 (dso):\n"); + dump_buf(buf1, len); + pr_debug("buf2 (objdump):\n"); + dump_buf(buf2, len); return -1; } pr_debug("Bytes read match those read by objdump\n"); @@ -427,7 +473,7 @@ static int do_test_code_reading(bool try_kcore) symbol_conf.kallsyms_name = "/proc/kallsyms"; /* Load kernel map */ - map = machine->vmlinux_maps[MAP__FUNCTION]; + map = machine__kernel_map(machine); ret = map__load(map, NULL); if (ret < 0) { pr_debug("map__load failed\n"); @@ -567,16 +613,16 @@ int test__code_reading(void) case TEST_CODE_READING_OK: return 0; case TEST_CODE_READING_NO_VMLINUX: - fprintf(stderr, " (no vmlinux)"); + pr_debug("no vmlinux\n"); return 0; case TEST_CODE_READING_NO_KCORE: - fprintf(stderr, " (no kcore)"); + pr_debug("no kcore\n"); return 0; case TEST_CODE_READING_NO_ACCESS: - fprintf(stderr, " (no access)"); + pr_debug("no access\n"); return 0; case TEST_CODE_READING_NO_KERNEL_OBJ: - fprintf(stderr, " (no kernel obj)"); + pr_debug("no kernel obj\n"); return 0; default: return -1; diff --git a/tools/perf/tests/dwarf-unwind.c b/tools/perf/tests/dwarf-unwind.c index 40b36c462..07221793a 100644 --- a/tools/perf/tests/dwarf-unwind.c +++ b/tools/perf/tests/dwarf-unwind.c @@ -11,6 +11,10 @@ #include "thread.h" #include "callchain.h" +#if defined (__x86_64__) || defined (__i386__) +#include "arch-tests.h" +#endif + /* For bsearch. We try to unwind functions in shared object. */ #include <stdlib.h> diff --git a/tools/perf/tests/evsel-tp-sched.c b/tools/perf/tests/evsel-tp-sched.c index 52162425c..790e413d9 100644 --- a/tools/perf/tests/evsel-tp-sched.c +++ b/tools/perf/tests/evsel-tp-sched.c @@ -1,3 +1,4 @@ +#include <linux/err.h> #include <traceevent/event-parse.h> #include "evsel.h" #include "tests.h" @@ -36,8 +37,8 @@ int test__perf_evsel__tp_sched_test(void) struct perf_evsel *evsel = perf_evsel__newtp("sched", "sched_switch"); int ret = 0; - if (evsel == NULL) { - pr_debug("perf_evsel__new\n"); + if (IS_ERR(evsel)) { + pr_debug("perf_evsel__newtp failed with %ld\n", PTR_ERR(evsel)); return -1; } @@ -66,6 +67,11 @@ int test__perf_evsel__tp_sched_test(void) evsel = perf_evsel__newtp("sched", "sched_wakeup"); + if (IS_ERR(evsel)) { + pr_debug("perf_evsel__newtp failed with %ld\n", PTR_ERR(evsel)); + return -1; + } + if (perf_evsel__test_field(evsel, "comm", 16, true)) ret = -1; diff --git a/tools/perf/tests/hists_filter.c b/tools/perf/tests/hists_filter.c index ce48775e6..818acf875 100644 --- a/tools/perf/tests/hists_filter.c +++ b/tools/perf/tests/hists_filter.c @@ -16,30 +16,31 @@ struct sample { struct thread *thread; struct map *map; struct symbol *sym; + int socket; }; /* For the numbers, see hists_common.c */ static struct sample fake_samples[] = { /* perf [kernel] schedule() */ - { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, }, + { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, .socket = 0 }, /* perf [perf] main() */ - { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, }, + { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, .socket = 0 }, /* perf [libc] malloc() */ - { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, }, + { .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, .socket = 0 }, /* perf [perf] main() */ - { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, }, /* will be merged */ + { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, .socket = 0 }, /* will be merged */ /* perf [perf] cmd_record() */ - { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_CMD_RECORD, }, + { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_CMD_RECORD, .socket = 1 }, /* perf [kernel] page_fault() */ - { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, }, + { .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, .socket = 1 }, /* bash [bash] main() */ - { .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, }, + { .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, .socket = 2 }, /* bash [bash] xmalloc() */ - { .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, }, + { .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, .socket = 2 }, /* bash [libc] malloc() */ - { .pid = FAKE_PID_BASH, .ip = FAKE_IP_LIBC_MALLOC, }, + { .pid = FAKE_PID_BASH, .ip = FAKE_IP_LIBC_MALLOC, .socket = 3 }, /* bash [kernel] page_fault() */ - { .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, }, + { .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, .socket = 3 }, }; static int add_hist_entries(struct perf_evlist *evlist, @@ -83,6 +84,7 @@ static int add_hist_entries(struct perf_evlist *evlist, &sample) < 0) goto out; + al.socket = fake_samples[i].socket; if (hist_entry_iter__add(&iter, &al, PERF_MAX_STACK_DEPTH, NULL) < 0) { addr_location__put(&al); @@ -253,6 +255,39 @@ int test__hists_filter(void) TEST_ASSERT_VAL("Unmatched total period for symbol filter", hists->stats.total_non_filtered_period == 300); + /* remove symbol filter first */ + hists->symbol_filter_str = NULL; + hists__filter_by_symbol(hists); + + /* now applying socket filters */ + hists->socket_filter = 2; + hists__filter_by_socket(hists); + + if (verbose > 2) { + pr_info("Histogram for socket filters\n"); + print_hists_out(hists); + } + + /* normal stats should be invariant */ + TEST_ASSERT_VAL("Invalid nr samples", + hists->stats.nr_events[PERF_RECORD_SAMPLE] == 10); + TEST_ASSERT_VAL("Invalid nr hist entries", + hists->nr_entries == 9); + TEST_ASSERT_VAL("Invalid total period", + hists->stats.total_period == 1000); + + /* but filter stats are changed */ + TEST_ASSERT_VAL("Unmatched nr samples for socket filter", + hists->stats.nr_non_filtered_samples == 2); + TEST_ASSERT_VAL("Unmatched nr hist entries for socket filter", + hists->nr_non_filtered_entries == 2); + TEST_ASSERT_VAL("Unmatched total period for socket filter", + hists->stats.total_non_filtered_period == 200); + + /* remove socket filter first */ + hists->socket_filter = -1; + hists__filter_by_socket(hists); + /* now applying all filters at once. */ hists->thread_filter = fake_samples[1].thread; hists->dso_filter = fake_samples[1].map->dso; diff --git a/tools/perf/tests/keep-tracking.c b/tools/perf/tests/keep-tracking.c index 4d4b9837b..a2e2269aa 100644 --- a/tools/perf/tests/keep-tracking.c +++ b/tools/perf/tests/keep-tracking.c @@ -90,8 +90,8 @@ int test__keep_tracking(void) evsel->attr.enable_on_exec = 0; if (perf_evlist__open(evlist) < 0) { - fprintf(stderr, " (not supported)"); - err = 0; + pr_debug("Unable to open dummy and cycles event\n"); + err = TEST_SKIP; goto out_err; } diff --git a/tools/perf/tests/llvm.c b/tools/perf/tests/llvm.c index 52d55971f..bc4cf507c 100644 --- a/tools/perf/tests/llvm.c +++ b/tools/perf/tests/llvm.c @@ -2,6 +2,7 @@ #include <bpf/libbpf.h> #include <util/llvm-utils.h> #include <util/cache.h> +#include "llvm.h" #include "tests.h" #include "debug.h" @@ -11,42 +12,58 @@ static int perf_config_cb(const char *var, const char *val, return perf_default_config(var, val, arg); } -/* - * Randomly give it a "version" section since we don't really load it - * into kernel - */ -static const char test_bpf_prog[] = - "__attribute__((section(\"do_fork\"), used)) " - "int fork(void *ctx) {return 0;} " - "char _license[] __attribute__((section(\"license\"), used)) = \"GPL\";" - "int _version __attribute__((section(\"version\"), used)) = 0x40100;"; - #ifdef HAVE_LIBBPF_SUPPORT static int test__bpf_parsing(void *obj_buf, size_t obj_buf_sz) { struct bpf_object *obj; obj = bpf_object__open_buffer(obj_buf, obj_buf_sz, NULL); - if (!obj) - return -1; + if (IS_ERR(obj)) + return TEST_FAIL; bpf_object__close(obj); - return 0; + return TEST_OK; } #else static int test__bpf_parsing(void *obj_buf __maybe_unused, size_t obj_buf_sz __maybe_unused) { - fprintf(stderr, " (skip bpf parsing)"); - return 0; + pr_debug("Skip bpf parsing\n"); + return TEST_OK; } #endif -int test__llvm(void) +static struct { + const char *source; + const char *desc; +} bpf_source_table[__LLVM_TESTCASE_MAX] = { + [LLVM_TESTCASE_BASE] = { + .source = test_llvm__bpf_base_prog, + .desc = "Basic BPF llvm compiling test", + }, + [LLVM_TESTCASE_KBUILD] = { + .source = test_llvm__bpf_test_kbuild_prog, + .desc = "Test kbuild searching", + }, +}; + + +int +test_llvm__fetch_bpf_obj(void **p_obj_buf, + size_t *p_obj_buf_sz, + enum test_llvm__testcase index, + bool force) { - char *tmpl_new, *clang_opt_new; - void *obj_buf; - size_t obj_buf_sz; - int err, old_verbose; + const char *source; + const char *desc; + const char *tmpl_old, *clang_opt_old; + char *tmpl_new = NULL, *clang_opt_new = NULL; + int err, old_verbose, ret = TEST_FAIL; + + if (index >= __LLVM_TESTCASE_MAX) + return TEST_FAIL; + + source = bpf_source_table[index].source; + desc = bpf_source_table[index].desc; perf_config(perf_config_cb, NULL); @@ -54,45 +71,100 @@ int test__llvm(void) * Skip this test if user's .perfconfig doesn't set [llvm] section * and clang is not found in $PATH, and this is not perf test -v */ - if (verbose == 0 && !llvm_param.user_set_param && llvm__search_clang()) { - fprintf(stderr, " (no clang, try 'perf test -v LLVM')"); + if (!force && (verbose == 0 && + !llvm_param.user_set_param && + llvm__search_clang())) { + pr_debug("No clang and no verbosive, skip this test\n"); return TEST_SKIP; } - old_verbose = verbose; /* * llvm is verbosity when error. Suppress all error output if * not 'perf test -v'. */ + old_verbose = verbose; if (verbose == 0) verbose = -1; + *p_obj_buf = NULL; + *p_obj_buf_sz = 0; + if (!llvm_param.clang_bpf_cmd_template) - return -1; + goto out; if (!llvm_param.clang_opt) llvm_param.clang_opt = strdup(""); - err = asprintf(&tmpl_new, "echo '%s' | %s", test_bpf_prog, - llvm_param.clang_bpf_cmd_template); + err = asprintf(&tmpl_new, "echo '%s' | %s%s", source, + llvm_param.clang_bpf_cmd_template, + old_verbose ? "" : " 2>/dev/null"); if (err < 0) - return -1; + goto out; err = asprintf(&clang_opt_new, "-xc %s", llvm_param.clang_opt); if (err < 0) - return -1; + goto out; + tmpl_old = llvm_param.clang_bpf_cmd_template; llvm_param.clang_bpf_cmd_template = tmpl_new; + clang_opt_old = llvm_param.clang_opt; llvm_param.clang_opt = clang_opt_new; - err = llvm__compile_bpf("-", &obj_buf, &obj_buf_sz); + + err = llvm__compile_bpf("-", p_obj_buf, p_obj_buf_sz); + + llvm_param.clang_bpf_cmd_template = tmpl_old; + llvm_param.clang_opt = clang_opt_old; verbose = old_verbose; - if (err) { - if (!verbose) - fprintf(stderr, " (use -v to see error message)"); - return -1; - } + if (err) + goto out; + + ret = TEST_OK; +out: + free(tmpl_new); + free(clang_opt_new); + if (ret != TEST_OK) + pr_debug("Failed to compile test case: '%s'\n", desc); + return ret; +} + +int test__llvm(void) +{ + enum test_llvm__testcase i; + + for (i = 0; i < __LLVM_TESTCASE_MAX; i++) { + int ret; + void *obj_buf = NULL; + size_t obj_buf_sz = 0; + + ret = test_llvm__fetch_bpf_obj(&obj_buf, &obj_buf_sz, + i, false); - err = test__bpf_parsing(obj_buf, obj_buf_sz); - free(obj_buf); - return err; + if (ret == TEST_OK) { + ret = test__bpf_parsing(obj_buf, obj_buf_sz); + if (ret != TEST_OK) + pr_debug("Failed to parse test case '%s'\n", + bpf_source_table[i].desc); + } + free(obj_buf); + + switch (ret) { + case TEST_SKIP: + return TEST_SKIP; + case TEST_OK: + break; + default: + /* + * Test 0 is the basic LLVM test. If test 0 + * fail, the basic LLVM support not functional + * so the whole test should fail. If other test + * case fail, it can be fixed by adjusting + * config so don't report error. + */ + if (i == 0) + return TEST_FAIL; + else + return TEST_SKIP; + } + } + return TEST_OK; } diff --git a/tools/perf/tests/llvm.h b/tools/perf/tests/llvm.h new file mode 100644 index 000000000..d91d8f44e --- /dev/null +++ b/tools/perf/tests/llvm.h @@ -0,0 +1,18 @@ +#ifndef PERF_TEST_LLVM_H +#define PERF_TEST_LLVM_H + +#include <stddef.h> /* for size_t */ +#include <stdbool.h> /* for bool */ + +extern const char test_llvm__bpf_base_prog[]; +extern const char test_llvm__bpf_test_kbuild_prog[]; + +enum test_llvm__testcase { + LLVM_TESTCASE_BASE, + LLVM_TESTCASE_KBUILD, + __LLVM_TESTCASE_MAX, +}; + +int test_llvm__fetch_bpf_obj(void **p_obj_buf, size_t *p_obj_buf_sz, + enum test_llvm__testcase index, bool force); +#endif diff --git a/tools/perf/tests/make b/tools/perf/tests/make index ba31c4bd4..8ea3dffc5 100644 --- a/tools/perf/tests/make +++ b/tools/perf/tests/make @@ -44,6 +44,7 @@ make_no_libnuma := NO_LIBNUMA=1 make_no_libaudit := NO_LIBAUDIT=1 make_no_libbionic := NO_LIBBIONIC=1 make_no_auxtrace := NO_AUXTRACE=1 +make_no_libbpf := NO_LIBBPF=1 make_tags := tags make_cscope := cscope make_help := help @@ -66,7 +67,7 @@ make_static := LDFLAGS=-static make_minimal := NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 make_minimal += NO_DEMANGLE=1 NO_LIBELF=1 NO_LIBUNWIND=1 NO_BACKTRACE=1 make_minimal += NO_LIBNUMA=1 NO_LIBAUDIT=1 NO_LIBBIONIC=1 -make_minimal += NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 +make_minimal += NO_LIBDW_DWARF_UNWIND=1 NO_AUXTRACE=1 NO_LIBBPF=1 # $(run) contains all available tests run := make_pure @@ -94,6 +95,7 @@ run += make_no_libnuma run += make_no_libaudit run += make_no_libbionic run += make_no_auxtrace +run += make_no_libbpf run += make_help run += make_doc run += make_perf_o @@ -219,6 +221,11 @@ test_O = $(if $(test_$1),$(test_$1),$(test_default_O)) all: +ifdef SHUF +run := $(shell shuf -e $(run)) +run_O := $(shell shuf -e $(run_O)) +endif + ifdef DEBUG d := $(info run $(run)) d := $(info run_O $(run_O)) diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c index 666b67a4d..4495493c9 100644 --- a/tools/perf/tests/mmap-basic.c +++ b/tools/perf/tests/mmap-basic.c @@ -3,6 +3,7 @@ #include "thread_map.h" #include "cpumap.h" #include "tests.h" +#include <linux/err.h> /* * This test will generate random numbers of calls to some getpid syscalls, @@ -65,7 +66,7 @@ int test__basic_mmap(void) snprintf(name, sizeof(name), "sys_enter_%s", syscall_names[i]); evsels[i] = perf_evsel__newtp("syscalls", name); - if (evsels[i] == NULL) { + if (IS_ERR(evsels[i])) { pr_debug("perf_evsel__new\n"); goto out_delete_evlist; } diff --git a/tools/perf/tests/openat-syscall-all-cpus.c b/tools/perf/tests/openat-syscall-all-cpus.c index a572f87e9..2006485a2 100644 --- a/tools/perf/tests/openat-syscall-all-cpus.c +++ b/tools/perf/tests/openat-syscall-all-cpus.c @@ -1,3 +1,5 @@ +#include <api/fs/fs.h> +#include <linux/err.h> #include "evsel.h" #include "tests.h" #include "thread_map.h" @@ -14,6 +16,7 @@ int test__openat_syscall_event_on_all_cpus(void) cpu_set_t cpu_set; struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX); char sbuf[STRERR_BUFSIZE]; + char errbuf[BUFSIZ]; if (threads == NULL) { pr_debug("thread_map__new\n"); @@ -29,13 +32,9 @@ int test__openat_syscall_event_on_all_cpus(void) CPU_ZERO(&cpu_set); evsel = perf_evsel__newtp("syscalls", "sys_enter_openat"); - if (evsel == NULL) { - if (tracefs_configured()) - pr_debug("is tracefs mounted on /sys/kernel/tracing?\n"); - else if (debugfs_configured()) - pr_debug("is debugfs mounted on /sys/kernel/debug?\n"); - else - pr_debug("Neither tracefs or debugfs is enabled in this kernel\n"); + if (IS_ERR(evsel)) { + tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "syscalls", "sys_enter_openat"); + pr_debug("%s\n", errbuf); goto out_thread_map_delete; } diff --git a/tools/perf/tests/openat-syscall-tp-fields.c b/tools/perf/tests/openat-syscall-tp-fields.c index 01a19626c..5e811cd8f 100644 --- a/tools/perf/tests/openat-syscall-tp-fields.c +++ b/tools/perf/tests/openat-syscall-tp-fields.c @@ -1,3 +1,4 @@ +#include <linux/err.h> #include "perf.h" #include "evlist.h" #include "evsel.h" @@ -30,7 +31,7 @@ int test__syscall_openat_tp_fields(void) } evsel = perf_evsel__newtp("syscalls", "sys_enter_openat"); - if (evsel == NULL) { + if (IS_ERR(evsel)) { pr_debug("%s: perf_evsel__newtp\n", __func__); goto out_delete_evlist; } @@ -88,7 +89,7 @@ int test__syscall_openat_tp_fields(void) err = perf_evsel__parse_sample(evsel, event, &sample); if (err) { - pr_err("Can't parse sample, err = %d\n", err); + pr_debug("Can't parse sample, err = %d\n", err); goto out_delete_evlist; } diff --git a/tools/perf/tests/openat-syscall.c b/tools/perf/tests/openat-syscall.c index c9a37bc6b..033b54797 100644 --- a/tools/perf/tests/openat-syscall.c +++ b/tools/perf/tests/openat-syscall.c @@ -1,3 +1,5 @@ +#include <api/fs/tracing_path.h> +#include <linux/err.h> #include "thread_map.h" #include "evsel.h" #include "debug.h" @@ -10,6 +12,7 @@ int test__openat_syscall_event(void) unsigned int nr_openat_calls = 111, i; struct thread_map *threads = thread_map__new(-1, getpid(), UINT_MAX); char sbuf[STRERR_BUFSIZE]; + char errbuf[BUFSIZ]; if (threads == NULL) { pr_debug("thread_map__new\n"); @@ -17,13 +20,9 @@ int test__openat_syscall_event(void) } evsel = perf_evsel__newtp("syscalls", "sys_enter_openat"); - if (evsel == NULL) { - if (tracefs_configured()) - pr_debug("is tracefs mounted on /sys/kernel/tracing?\n"); - else if (debugfs_configured()) - pr_debug("is debugfs mounted on /sys/kernel/debug?\n"); - else - pr_debug("Neither tracefs or debugfs is enabled in this kernel\n"); + if (IS_ERR(evsel)) { + tracing_path__strerror_open_tp(errno, errbuf, sizeof(errbuf), "syscalls", "sys_enter_openat"); + pr_debug("%s\n", errbuf); goto out_thread_map_delete; } diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c index 9b6b2b632..636d7b42d 100644 --- a/tools/perf/tests/parse-events.c +++ b/tools/perf/tests/parse-events.c @@ -3,11 +3,11 @@ #include "evsel.h" #include "evlist.h" #include <api/fs/fs.h> -#include <api/fs/tracefs.h> -#include <api/fs/debugfs.h> #include "tests.h" #include "debug.h" +#include "util.h" #include <linux/hw_breakpoint.h> +#include <api/fs/fs.h> #define PERF_TP_SAMPLE_TYPE (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | \ PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD) @@ -1260,25 +1260,24 @@ test__checkevent_breakpoint_len_rw_modifier(struct perf_evlist *evlist) return test__checkevent_breakpoint_rw(evlist); } +static int test__checkevent_precise_max_modifier(struct perf_evlist *evlist) +{ + struct perf_evsel *evsel = perf_evlist__first(evlist); + + TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->nr_entries); + TEST_ASSERT_VAL("wrong type", PERF_TYPE_SOFTWARE == evsel->attr.type); + TEST_ASSERT_VAL("wrong config", + PERF_COUNT_SW_TASK_CLOCK == evsel->attr.config); + return 0; +} + static int count_tracepoints(void) { - char events_path[PATH_MAX]; struct dirent *events_ent; - const char *mountpoint; DIR *events_dir; int cnt = 0; - mountpoint = tracefs_find_mountpoint(); - if (mountpoint) { - scnprintf(events_path, PATH_MAX, "%s/events", - mountpoint); - } else { - mountpoint = debugfs_find_mountpoint(); - scnprintf(events_path, PATH_MAX, "%s/tracing/events", - mountpoint); - } - - events_dir = opendir(events_path); + events_dir = opendir(tracing_events_path); TEST_ASSERT_VAL("Can't open events dir", events_dir); @@ -1295,7 +1294,7 @@ static int count_tracepoints(void) continue; scnprintf(sys_path, PATH_MAX, "%s/%s", - events_path, events_ent->d_name); + tracing_events_path, events_ent->d_name); sys_dir = opendir(sys_path); TEST_ASSERT_VAL("Can't open sys dir", sys_dir); @@ -1575,6 +1574,11 @@ static struct evlist_test test__events[] = { .check = test__checkevent_exclude_idle_modifier_1, .id = 46, }, + { + .name = "task-clock:P,cycles", + .check = test__checkevent_precise_max_modifier, + .id = 47, + }, }; static struct evlist_test test__events_pmu[] = { @@ -1750,6 +1754,17 @@ static int test_pmu_events(void) return ret; } +static void debug_warn(const char *warn, va_list params) +{ + char msg[1024]; + + if (!verbose) + return; + + vsnprintf(msg, sizeof(msg), warn, params); + fprintf(stderr, " Warning: %s\n", msg); +} + int test__parse_events(void) { int ret1, ret2 = 0; @@ -1761,6 +1776,8 @@ do { \ ret2 = ret1; \ } while (0) + set_warning_routine(debug_warn); + TEST_EVENTS(test__events); if (test_pmu()) diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c index e698742d4..a02af5031 100644 --- a/tools/perf/tests/switch-tracking.c +++ b/tools/perf/tests/switch-tracking.c @@ -366,7 +366,7 @@ int test__switch_tracking(void) /* Third event */ if (!perf_evlist__can_select_event(evlist, sched_switch)) { - fprintf(stderr, " (no sched_switch)"); + pr_debug("No sched_switch\n"); err = 0; goto out; } @@ -442,7 +442,7 @@ int test__switch_tracking(void) } if (perf_evlist__open(evlist) < 0) { - fprintf(stderr, " (not supported)"); + pr_debug("Not supported\n"); err = 0; goto out; } diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index bf113a247..3c8734a3a 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -24,13 +24,17 @@ enum { TEST_SKIP = -2, }; +struct test { + const char *desc; + int (*func)(void); +}; + /* Tests */ int test__vmlinux_matches_kallsyms(void); int test__openat_syscall_event(void); int test__openat_syscall_event_on_all_cpus(void); int test__basic_mmap(void); int test__PERF_RECORD(void); -int test__rdpmc(void); int test__perf_evsel__roundtrip_name_test(void); int test__perf_evsel__tp_sched_test(void); int test__syscall_openat_tp_fields(void); @@ -46,7 +50,6 @@ int test__bp_signal(void); int test__bp_signal_overflow(void); int test__task_exit(void); int test__sw_clock_freq(void); -int test__perf_time_to_tsc(void); int test__code_reading(void); int test__sample_parsing(void); int test__keep_tracking(void); @@ -63,8 +66,10 @@ int test__fdarray__add(void); int test__kmod_path__parse(void); int test__thread_map(void); int test__llvm(void); +int test__bpf(void); +int test_session_topology(void); -#if defined(__x86_64__) || defined(__i386__) || defined(__arm__) || defined(__aarch64__) +#if defined(__arm__) || defined(__aarch64__) #ifdef HAVE_DWARF_UNWIND_SUPPORT struct thread; struct perf_sample; diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c new file mode 100644 index 000000000..f5bb096c3 --- /dev/null +++ b/tools/perf/tests/topology.c @@ -0,0 +1,115 @@ +#include <string.h> +#include <stdlib.h> +#include <stdio.h> +#include "tests.h" +#include "util.h" +#include "session.h" +#include "evlist.h" +#include "debug.h" + +#define TEMPL "/tmp/perf-test-XXXXXX" +#define DATA_SIZE 10 + +static int get_temp(char *path) +{ + int fd; + + strcpy(path, TEMPL); + + fd = mkstemp(path); + if (fd < 0) { + perror("mkstemp failed"); + return -1; + } + + close(fd); + return 0; +} + +static int session_write_header(char *path) +{ + struct perf_session *session; + struct perf_data_file file = { + .path = path, + .mode = PERF_DATA_MODE_WRITE, + }; + + session = perf_session__new(&file, false, NULL); + TEST_ASSERT_VAL("can't get session", session); + + session->evlist = perf_evlist__new_default(); + TEST_ASSERT_VAL("can't get evlist", session->evlist); + + perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY); + perf_header__set_feat(&session->header, HEADER_NRCPUS); + + session->header.data_size += DATA_SIZE; + + TEST_ASSERT_VAL("failed to write header", + !perf_session__write_header(session, session->evlist, file.fd, true)); + + perf_session__delete(session); + + return 0; +} + +static int check_cpu_topology(char *path, struct cpu_map *map) +{ + struct perf_session *session; + struct perf_data_file file = { + .path = path, + .mode = PERF_DATA_MODE_READ, + }; + int i; + + session = perf_session__new(&file, false, NULL); + TEST_ASSERT_VAL("can't get session", session); + + for (i = 0; i < session->header.env.nr_cpus_online; i++) { + pr_debug("CPU %d, core %d, socket %d\n", i, + session->header.env.cpu[i].core_id, + session->header.env.cpu[i].socket_id); + } + + for (i = 0; i < map->nr; i++) { + TEST_ASSERT_VAL("Core ID doesn't match", + (session->header.env.cpu[map->map[i]].core_id == (cpu_map__get_core(map, i, NULL) & 0xffff))); + + TEST_ASSERT_VAL("Socket ID doesn't match", + (session->header.env.cpu[map->map[i]].socket_id == cpu_map__get_socket(map, i, NULL))); + } + + perf_session__delete(session); + + return 0; +} + +int test_session_topology(void) +{ + char path[PATH_MAX]; + struct cpu_map *map; + int ret = -1; + + TEST_ASSERT_VAL("can't get templ file", !get_temp(path)); + + pr_debug("templ file: %s\n", path); + + if (session_write_header(path)) + goto free_path; + + map = cpu_map__new(NULL); + if (map == NULL) { + pr_debug("failed to get system cpumap\n"); + goto free_path; + } + + if (check_cpu_topology(path, map)) + goto free_map; + ret = 0; + +free_map: + cpu_map__put(map); +free_path: + unlink(path); + return ret; +} diff --git a/tools/perf/tests/vmlinux-kallsyms.c b/tools/perf/tests/vmlinux-kallsyms.c index b34c5fc82..d677e018e 100644 --- a/tools/perf/tests/vmlinux-kallsyms.c +++ b/tools/perf/tests/vmlinux-kallsyms.c @@ -68,7 +68,7 @@ int test__vmlinux_matches_kallsyms(void) * to see if the running kernel was relocated by checking if it has the * same value in the vmlinux file we load. */ - kallsyms_map = machine__kernel_map(&kallsyms, type); + kallsyms_map = machine__kernel_map(&kallsyms); /* * Step 5: @@ -80,7 +80,7 @@ int test__vmlinux_matches_kallsyms(void) goto out; } - vmlinux_map = machine__kernel_map(&vmlinux, type); + vmlinux_map = machine__kernel_map(&vmlinux); /* * Step 6: diff --git a/tools/perf/trace/strace/groups/file b/tools/perf/trace/strace/groups/file index 62378a899..722e25d20 100644 --- a/tools/perf/trace/strace/groups/file +++ b/tools/perf/trace/strace/groups/file @@ -9,6 +9,7 @@ mkdir open openat quotactl +read readlink rename rmdir @@ -16,3 +17,4 @@ stat statfs symlink unlink +write diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c index c6c7e5189..e9703c082 100644 --- a/tools/perf/ui/browser.c +++ b/tools/perf/ui/browser.c @@ -393,6 +393,7 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs) if (browser->use_navkeypressed && !browser->navkeypressed) { if (key == K_DOWN || key == K_UP || + (browser->columns && (key == K_LEFT || key == K_RIGHT)) || key == K_PGDN || key == K_PGUP || key == K_HOME || key == K_END || key == ' ') { @@ -421,6 +422,18 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs) browser->seek(browser, -1, SEEK_CUR); } break; + case K_RIGHT: + if (!browser->columns) + goto out; + if (browser->horiz_scroll < browser->columns - 1) + ++browser->horiz_scroll; + break; + case K_LEFT: + if (!browser->columns) + goto out; + if (browser->horiz_scroll != 0) + --browser->horiz_scroll; + break; case K_PGDN: case ' ': if (browser->top_idx + browser->rows > browser->nr_entries - 1) @@ -459,6 +472,7 @@ int ui_browser__run(struct ui_browser *browser, int delay_secs) browser->seek(browser, -offset, SEEK_END); break; default: + out: return key; } } diff --git a/tools/perf/ui/browser.h b/tools/perf/ui/browser.h index f3cef564d..01781de59 100644 --- a/tools/perf/ui/browser.h +++ b/tools/perf/ui/browser.h @@ -14,7 +14,7 @@ struct ui_browser { u64 index, top_idx; void *top, *entries; - u16 y, x, width, height, rows; + u16 y, x, width, height, rows, columns, horiz_scroll; int current_color; void *priv; const char *title; diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c index 29739b347..d4d7cc272 100644 --- a/tools/perf/ui/browsers/annotate.c +++ b/tools/perf/ui/browsers/annotate.c @@ -768,8 +768,8 @@ static int annotate_browser__run(struct annotate_browser *browser, "UP/DOWN/PGUP\n" "PGDN/SPACE Navigate\n" "q/ESC/CTRL+C Exit\n\n" - "-> Go to target\n" - "<- Exit\n" + "ENTER Go to target\n" + "ESC Exit\n" "H Cycle thru hottest instructions\n" "j Toggle showing jump to target arrows\n" "J Toggle showing number of jump sources on targets\n" @@ -1056,7 +1056,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, goto out_free_offsets; } - ui_helpline__push("Press <- or ESC to exit"); + ui_helpline__push("Press ESC to exit"); notes = symbol__annotation(sym); browser.start = map__rip_2objdump(map, sym->start); @@ -1125,8 +1125,8 @@ static struct annotate_config { ANNOTATE_CFG(jump_arrows), ANNOTATE_CFG(show_linenr), ANNOTATE_CFG(show_nr_jumps), - ANNOTATE_CFG(use_offset), ANNOTATE_CFG(show_total_period), + ANNOTATE_CFG(use_offset), }; #undef ANNOTATE_CFG @@ -1152,9 +1152,9 @@ static int annotate__config(const char *var, const char *value, sizeof(struct annotate_config), annotate_config__cmp); if (cfg == NULL) - return -1; - - *cfg->value = perf_config_bool(name, value); + ui__warning("%s variable unknown, ignoring...", var); + else + *cfg->value = perf_config_bool(name, value); return 0; } diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index c04c60d48..81def6c3f 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -298,6 +298,9 @@ static bool hist_browser__toggle_fold(struct hist_browser *browser) struct callchain_list *cl = container_of(ms, struct callchain_list, ms); bool has_children; + if (!he || !ms) + return false; + if (ms == &he->ms) has_children = hist_entry__toggle_fold(he); else @@ -784,11 +787,12 @@ static int hist_browser__show_entry(struct hist_browser *browser, .size = sizeof(s), .ptr = &arg, }; + int column = 0; hist_browser__gotorc(browser, row, 0); perf_hpp__for_each_format(fmt) { - if (perf_hpp__should_skip(fmt)) + if (perf_hpp__should_skip(fmt) || column++ < browser->b.horiz_scroll) continue; if (current_entry && browser->b.navkeypressed) { @@ -861,14 +865,16 @@ static int advance_hpp_check(struct perf_hpp *hpp, int inc) return hpp->size <= 0; } -static int hists__scnprintf_headers(char *buf, size_t size, struct hists *hists) +static int hists_browser__scnprintf_headers(struct hist_browser *browser, char *buf, size_t size) { + struct hists *hists = browser->hists; struct perf_hpp dummy_hpp = { .buf = buf, .size = size, }; struct perf_hpp_fmt *fmt; size_t ret = 0; + int column = 0; if (symbol_conf.use_callchain) { ret = scnprintf(buf, size, " "); @@ -877,7 +883,7 @@ static int hists__scnprintf_headers(char *buf, size_t size, struct hists *hists) } perf_hpp__for_each_format(fmt) { - if (perf_hpp__should_skip(fmt)) + if (perf_hpp__should_skip(fmt) || column++ < browser->b.horiz_scroll) continue; ret = fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists)); @@ -896,7 +902,7 @@ static void hist_browser__show_headers(struct hist_browser *browser) { char headers[1024]; - hists__scnprintf_headers(headers, sizeof(headers), browser->hists); + hists_browser__scnprintf_headers(browser, headers, sizeof(headers)); ui_browser__gotorc(&browser->b, 0, 0); ui_browser__set_color(&browser->b, HE_COLORSET_ROOT); ui_browser__write_nstring(&browser->b, headers, browser->b.width + 1); @@ -925,6 +931,8 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser) } ui_browser__hists_init_top(browser); + hb->he_selection = NULL; + hb->selection = NULL; for (nd = browser->top; nd; nd = rb_next(nd)) { struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); @@ -1030,6 +1038,9 @@ static void ui_browser__hists_seek(struct ui_browser *browser, * and stop when we printed enough lines to fill the screen. */ do_offset: + if (!nd) + return; + if (offset > 0) { do { h = rb_entry(nd, struct hist_entry, rb_node); @@ -1261,6 +1272,7 @@ static int hists__browser_title(struct hists *hists, int printed; const struct dso *dso = hists->dso_filter; const struct thread *thread = hists->thread_filter; + int socket_id = hists->socket_filter; unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE]; u64 nr_events = hists->stats.total_period; struct perf_evsel *evsel = hists_to_evsel(hists); @@ -1314,6 +1326,9 @@ static int hists__browser_title(struct hists *hists, if (dso) printed += scnprintf(bf + printed, size - printed, ", DSO: %s", dso->short_name); + if (socket_id > -1) + printed += scnprintf(bf + printed, size - printed, + ", Processor Socket: %d", socket_id); if (!is_report_browser(hbt)) { struct perf_top *top = hbt->arg; @@ -1423,8 +1438,8 @@ close_file_and_continue: struct popup_action { struct thread *thread; - struct dso *dso; struct map_symbol ms; + int socket; int (*fn)(struct hist_browser *browser, struct popup_action *act); }; @@ -1437,7 +1452,7 @@ do_annotate(struct hist_browser *browser, struct popup_action *act) struct hist_entry *he; int err; - if (!objdump_path && perf_session_env__lookup_objdump(browser->env)) + if (!objdump_path && perf_env__lookup_objdump(browser->env)) return 0; notes = symbol__annotation(act->ms.sym); @@ -1488,7 +1503,7 @@ do_zoom_thread(struct hist_browser *browser, struct popup_action *act) thread__zput(browser->hists->thread_filter); ui_helpline__pop(); } else { - ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s(%d) thread\"", + ui_helpline__fpush("To zoom out press ESC or ENTER + \"Zoom out of %s(%d) thread\"", thread->comm_set ? thread__comm_str(thread) : "", thread->tid); browser->hists->thread_filter = thread__get(thread); @@ -1522,7 +1537,7 @@ add_thread_opt(struct hist_browser *browser, struct popup_action *act, static int do_zoom_dso(struct hist_browser *browser, struct popup_action *act) { - struct dso *dso = act->dso; + struct map *map = act->ms.map; if (browser->hists->dso_filter) { pstack__remove(browser->pstack, &browser->hists->dso_filter); @@ -1530,11 +1545,11 @@ do_zoom_dso(struct hist_browser *browser, struct popup_action *act) browser->hists->dso_filter = NULL; ui_helpline__pop(); } else { - if (dso == NULL) + if (map == NULL) return 0; - ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s DSO\"", - dso->kernel ? "the Kernel" : dso->short_name); - browser->hists->dso_filter = dso; + ui_helpline__fpush("To zoom out press ESC or ENTER + \"Zoom out of %s DSO\"", + __map__is_kernel(map) ? "the Kernel" : map->dso->short_name); + browser->hists->dso_filter = map->dso; perf_hpp__set_elide(HISTC_DSO, true); pstack__push(browser->pstack, &browser->hists->dso_filter); } @@ -1546,17 +1561,17 @@ do_zoom_dso(struct hist_browser *browser, struct popup_action *act) static int add_dso_opt(struct hist_browser *browser, struct popup_action *act, - char **optstr, struct dso *dso) + char **optstr, struct map *map) { - if (dso == NULL) + if (map == NULL) return 0; if (asprintf(optstr, "Zoom %s %s DSO", browser->hists->dso_filter ? "out of" : "into", - dso->kernel ? "the Kernel" : dso->short_name) < 0) + __map__is_kernel(map) ? "the Kernel" : map->dso->short_name) < 0) return 0; - act->dso = dso; + act->ms.map = map; act->fn = do_zoom_dso; return 1; } @@ -1672,6 +1687,41 @@ add_exit_opt(struct hist_browser *browser __maybe_unused, return 1; } +static int +do_zoom_socket(struct hist_browser *browser, struct popup_action *act) +{ + if (browser->hists->socket_filter > -1) { + pstack__remove(browser->pstack, &browser->hists->socket_filter); + browser->hists->socket_filter = -1; + perf_hpp__set_elide(HISTC_SOCKET, false); + } else { + browser->hists->socket_filter = act->socket; + perf_hpp__set_elide(HISTC_SOCKET, true); + pstack__push(browser->pstack, &browser->hists->socket_filter); + } + + hists__filter_by_socket(browser->hists); + hist_browser__reset(browser); + return 0; +} + +static int +add_socket_opt(struct hist_browser *browser, struct popup_action *act, + char **optstr, int socket_id) +{ + if (socket_id < 0) + return 0; + + if (asprintf(optstr, "Zoom %s Processor Socket %d", + (browser->hists->socket_filter > -1) ? "out of" : "into", + socket_id) < 0) + return 0; + + act->socket = socket_id; + act->fn = do_zoom_socket; + return 1; +} + static void hist_browser__update_nr_entries(struct hist_browser *hb) { u64 nr_entries = 0; @@ -1717,14 +1767,16 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, "For multiple event sessions:\n\n" \ "TAB/UNTAB Switch events\n\n" \ "For symbolic views (--sort has sym):\n\n" \ - "-> Zoom into DSO/Threads & Annotate current symbol\n" \ - "<- Zoom out\n" \ + "ENTER Zoom into DSO/Threads & Annotate current symbol\n" \ + "ESC Zoom out\n" \ "a Annotate current symbol\n" \ "C Collapse all callchains\n" \ "d Zoom into current DSO\n" \ "E Expand all callchains\n" \ "F Toggle percentage of filtered entries\n" \ "H Display column headers\n" \ + "m Display context menu\n" \ + "S Zoom into current Processor Socket\n" \ /* help messages are sorted by lexical order of the hotkey */ const char report_help[] = HIST_BROWSER_HELP_COMMON @@ -1755,7 +1807,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, hist_browser__update_nr_entries(browser); } - browser->pstack = pstack__new(2); + browser->pstack = pstack__new(3); if (browser->pstack == NULL) goto out; @@ -1764,16 +1816,26 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, memset(options, 0, sizeof(options)); memset(actions, 0, sizeof(actions)); - perf_hpp__for_each_format(fmt) + perf_hpp__for_each_format(fmt) { perf_hpp__reset_width(fmt, hists); + /* + * This is done just once, and activates the horizontal scrolling + * code in the ui_browser code, it would be better to have a the + * counter in the perf_hpp code, but I couldn't find doing it here + * works, FIXME by setting this in hist_browser__new, for now, be + * clever 8-) + */ + ++browser->b.columns; + } if (symbol_conf.col_width_list_str) perf_hpp__set_user_width(symbol_conf.col_width_list_str); while (1) { struct thread *thread = NULL; - struct dso *dso = NULL; + struct map *map = NULL; int choice = 0; + int socked_id = -1; nr_options = 0; @@ -1781,7 +1843,8 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, if (browser->he_selection != NULL) { thread = hist_browser__selected_thread(browser); - dso = browser->selection->map ? browser->selection->map->dso : NULL; + map = browser->selection->map; + socked_id = browser->he_selection->socket; } switch (key) { case K_TAB: @@ -1814,7 +1877,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, hist_browser__dump(browser); continue; case 'd': - actions->dso = dso; + actions->ms.map = map; do_zoom_dso(browser, actions); continue; case 'V': @@ -1824,9 +1887,14 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, actions->thread = thread; do_zoom_thread(browser, actions); continue; + case 'S': + actions->socket = socked_id; + do_zoom_socket(browser, actions); + continue; case '/': if (ui_browser__input_window("Symbol to show", - "Please enter the name of symbol you want to see", + "Please enter the name of symbol you want to see.\n" + "To remove the filter later, press / + ENTER.", buf, "ENTER: OK, ESC: Cancel", delay_secs * 2) == K_ENTER) { hists->symbol_filter_str = *buf ? buf : NULL; @@ -1871,6 +1939,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, continue; case K_ENTER: case K_RIGHT: + case 'm': /* menu */ break; case K_ESC: @@ -1899,9 +1968,11 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, * Ditto for thread below. */ do_zoom_dso(browser, actions); - } - if (top == &browser->hists->thread_filter) + } else if (top == &browser->hists->thread_filter) { do_zoom_thread(browser, actions); + } else if (top == &browser->hists->socket_filter) { + do_zoom_socket(browser, actions); + } continue; } case 'q': @@ -1965,12 +2036,14 @@ skip_annotation: nr_options += add_thread_opt(browser, &actions[nr_options], &options[nr_options], thread); nr_options += add_dso_opt(browser, &actions[nr_options], - &options[nr_options], dso); + &options[nr_options], map); nr_options += add_map_opt(browser, &actions[nr_options], &options[nr_options], browser->selection ? browser->selection->map : NULL); - + nr_options += add_socket_opt(browser, &actions[nr_options], + &options[nr_options], + socked_id); /* perf script support */ if (browser->he_selection) { nr_options += add_script_opt(browser, diff --git a/tools/perf/ui/browsers/map.c b/tools/perf/ui/browsers/map.c index 8c154c7d4..80912778b 100644 --- a/tools/perf/ui/browsers/map.c +++ b/tools/perf/ui/browsers/map.c @@ -72,7 +72,7 @@ static int map_browser__run(struct map_browser *browser) int key; if (ui_browser__show(&browser->b, browser->map->dso->long_name, - "Press <- or ESC to exit, %s / to search", + "Press ESC to exit, %s / to search", verbose ? "" : "restart with -v to use") < 0) return -1; diff --git a/tools/perf/ui/browsers/scripts.c b/tools/perf/ui/browsers/scripts.c index e13b48d70..ad6b6ee37 100644 --- a/tools/perf/ui/browsers/scripts.c +++ b/tools/perf/ui/browsers/scripts.c @@ -89,7 +89,7 @@ static int script_browser__run(struct perf_script_browser *browser) int key; if (ui_browser__show(&browser->b, browser->script_name, - "Press <- or ESC to exit") < 0) + "Press ESC to exit") < 0) return -1; while (1) { diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c index 25d608394..5029ba2b5 100644 --- a/tools/perf/ui/hist.c +++ b/tools/perf/ui/hist.c @@ -463,27 +463,27 @@ void perf_hpp__init(void) return; if (symbol_conf.cumulate_callchain) { - perf_hpp__column_enable(PERF_HPP__OVERHEAD_ACC); + hpp_dimension__add_output(PERF_HPP__OVERHEAD_ACC); perf_hpp__format[PERF_HPP__OVERHEAD].name = "Self"; } - perf_hpp__column_enable(PERF_HPP__OVERHEAD); + hpp_dimension__add_output(PERF_HPP__OVERHEAD); if (symbol_conf.show_cpu_utilization) { - perf_hpp__column_enable(PERF_HPP__OVERHEAD_SYS); - perf_hpp__column_enable(PERF_HPP__OVERHEAD_US); + hpp_dimension__add_output(PERF_HPP__OVERHEAD_SYS); + hpp_dimension__add_output(PERF_HPP__OVERHEAD_US); if (perf_guest) { - perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_SYS); - perf_hpp__column_enable(PERF_HPP__OVERHEAD_GUEST_US); + hpp_dimension__add_output(PERF_HPP__OVERHEAD_GUEST_SYS); + hpp_dimension__add_output(PERF_HPP__OVERHEAD_GUEST_US); } } if (symbol_conf.show_nr_samples) - perf_hpp__column_enable(PERF_HPP__SAMPLES); + hpp_dimension__add_output(PERF_HPP__SAMPLES); if (symbol_conf.show_total_period) - perf_hpp__column_enable(PERF_HPP__PERIOD); + hpp_dimension__add_output(PERF_HPP__PERIOD); /* prepend overhead field for backward compatiblity. */ list = &perf_hpp__format[PERF_HPP__OVERHEAD].sort_list; diff --git a/tools/perf/ui/tui/setup.c b/tools/perf/ui/tui/setup.c index 60d1f29b4..7dfeba0a9 100644 --- a/tools/perf/ui/tui/setup.c +++ b/tools/perf/ui/tui/setup.c @@ -141,10 +141,6 @@ int ui__init(void) SLkp_define_keysym((char *)"^(kB)", SL_KEY_UNTAB); - ui_helpline__init(); - ui_browser__init(); - tui_progress__init(); - signal(SIGSEGV, ui__signal_backtrace); signal(SIGFPE, ui__signal_backtrace); signal(SIGINT, ui__signal); @@ -153,6 +149,10 @@ int ui__init(void) perf_error__register(&perf_tui_eops); + ui_helpline__init(); + ui_browser__init(); + tui_progress__init(); + hist_browser__init_hpp(); out: return err; diff --git a/tools/perf/util/Build b/tools/perf/util/Build index e5f18a288..591b3fe3e 100644 --- a/tools/perf/util/Build +++ b/tools/perf/util/Build @@ -5,6 +5,7 @@ libperf-y += build-id.o libperf-y += config.o libperf-y += ctype.o libperf-y += db-export.o +libperf-y += env.o libperf-y += environment.o libperf-y += event.o libperf-y += evlist.o @@ -86,6 +87,7 @@ libperf-$(CONFIG_AUXTRACE) += intel-bts.o libperf-y += parse-branch-options.o libperf-y += parse-regs-options.o +libperf-$(CONFIG_LIBBPF) += bpf-loader.o libperf-$(CONFIG_LIBELF) += symbol-elf.o libperf-$(CONFIG_LIBELF) += probe-file.o libperf-$(CONFIG_LIBELF) += probe-event.o diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index d1eece70b..1dd1949b0 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -548,8 +548,11 @@ static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map, pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr)); - if (addr < sym->start || addr >= sym->end) + if (addr < sym->start || addr >= sym->end) { + pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n", + __func__, __LINE__, sym->name, sym->start, addr, sym->end); return -ERANGE; + } offset = addr - sym->start; h = annotation__histogram(notes, evidx); @@ -1081,6 +1084,7 @@ int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize) struct kcore_extract kce; bool delete_extract = false; int lineno = 0; + int nline; if (filename) symbol__join_symfs(symfs_filename, filename); @@ -1176,6 +1180,9 @@ fallback: ret = decompress_to_file(m.ext, symfs_filename, fd); + if (ret) + pr_err("Cannot decompress %s %s\n", m.ext, symfs_filename); + free(m.ext); close(fd); @@ -1201,13 +1208,25 @@ fallback: pr_debug("Executing: %s\n", command); file = popen(command, "r"); - if (!file) + if (!file) { + pr_err("Failure running %s\n", command); + /* + * If we were using debug info should retry with + * original binary. + */ goto out_remove_tmp; + } - while (!feof(file)) + nline = 0; + while (!feof(file)) { if (symbol__parse_objdump_line(sym, map, file, privsize, &lineno) < 0) break; + nline++; + } + + if (nline == 0) + pr_err("No output from %s\n", command); /* * kallsyms does not have symbol sizes so there may a nop at the end. @@ -1601,6 +1620,7 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map, len = symbol__size(sym); if (print_lines) { + srcline_full_filename = full_paths; symbol__get_source_line(sym, map, evsel, &source_line, len); print_summary(&source_line, dso->long_name); } diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h index e9996092a..cea323d9e 100644 --- a/tools/perf/util/annotate.h +++ b/tools/perf/util/annotate.h @@ -122,7 +122,7 @@ struct annotated_source { struct list_head source; struct source_line *lines; int nr_histograms; - int sizeof_sym_hist; + size_t sizeof_sym_hist; struct cyc_hist *cycles_hist; struct sym_hist histograms[0]; }; diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index a980e7c50..7f10430af 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -926,6 +926,8 @@ s64 perf_event__process_auxtrace(struct perf_tool *tool, #define PERF_ITRACE_DEFAULT_PERIOD 100000 #define PERF_ITRACE_DEFAULT_CALLCHAIN_SZ 16 #define PERF_ITRACE_MAX_CALLCHAIN_SZ 1024 +#define PERF_ITRACE_DEFAULT_LAST_BRANCH_SZ 64 +#define PERF_ITRACE_MAX_LAST_BRANCH_SZ 1024 void itrace_synth_opts__set_default(struct itrace_synth_opts *synth_opts) { @@ -936,6 +938,7 @@ void itrace_synth_opts__set_default(struct itrace_synth_opts *synth_opts) synth_opts->period_type = PERF_ITRACE_DEFAULT_PERIOD_TYPE; synth_opts->period = PERF_ITRACE_DEFAULT_PERIOD; synth_opts->callchain_sz = PERF_ITRACE_DEFAULT_CALLCHAIN_SZ; + synth_opts->last_branch_sz = PERF_ITRACE_DEFAULT_LAST_BRANCH_SZ; } /* @@ -950,6 +953,7 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str, const char *p; char *endptr; bool period_type_set = false; + bool period_set = false; synth_opts->set = true; @@ -971,6 +975,7 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str, p += 1; if (isdigit(*p)) { synth_opts->period = strtoull(p, &endptr, 10); + period_set = true; p = endptr; while (*p == ' ' || *p == ',') p += 1; @@ -1041,6 +1046,23 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str, synth_opts->callchain_sz = val; } break; + case 'l': + synth_opts->last_branch = true; + synth_opts->last_branch_sz = + PERF_ITRACE_DEFAULT_LAST_BRANCH_SZ; + while (*p == ' ' || *p == ',') + p += 1; + if (isdigit(*p)) { + unsigned int val; + + val = strtoul(p, &endptr, 10); + p = endptr; + if (!val || + val > PERF_ITRACE_MAX_LAST_BRANCH_SZ) + goto out_err; + synth_opts->last_branch_sz = val; + } + break; case ' ': case ',': break; @@ -1053,7 +1075,7 @@ out: if (!period_type_set) synth_opts->period_type = PERF_ITRACE_DEFAULT_PERIOD_TYPE; - if (!synth_opts->period) + if (!period_set) synth_opts->period = PERF_ITRACE_DEFAULT_PERIOD; } diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h index bf72b77a5..b86f90db1 100644 --- a/tools/perf/util/auxtrace.h +++ b/tools/perf/util/auxtrace.h @@ -63,7 +63,9 @@ enum itrace_period_type { * @calls: limit branch samples to calls (can be combined with @returns) * @returns: limit branch samples to returns (can be combined with @calls) * @callchain: add callchain to 'instructions' events + * @last_branch: add branch context to 'instruction' events * @callchain_sz: maximum callchain size + * @last_branch_sz: branch context size * @period: 'instructions' events period * @period_type: 'instructions' events period type */ @@ -79,7 +81,9 @@ struct itrace_synth_opts { bool calls; bool returns; bool callchain; + bool last_branch; unsigned int callchain_sz; + unsigned int last_branch_sz; unsigned long long period; enum itrace_period_type period_type; }; diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c new file mode 100644 index 000000000..4c5041137 --- /dev/null +++ b/tools/perf/util/bpf-loader.c @@ -0,0 +1,457 @@ +/* + * bpf-loader.c + * + * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com> + * Copyright (C) 2015 Huawei Inc. + */ + +#include <bpf/libbpf.h> +#include <linux/err.h> +#include "perf.h" +#include "debug.h" +#include "bpf-loader.h" +#include "probe-event.h" +#include "probe-finder.h" // for MAX_PROBES +#include "llvm-utils.h" + +#define DEFINE_PRINT_FN(name, level) \ +static int libbpf_##name(const char *fmt, ...) \ +{ \ + va_list args; \ + int ret; \ + \ + va_start(args, fmt); \ + ret = veprintf(level, verbose, pr_fmt(fmt), args);\ + va_end(args); \ + return ret; \ +} + +DEFINE_PRINT_FN(warning, 1) +DEFINE_PRINT_FN(info, 1) +DEFINE_PRINT_FN(debug, 1) + +struct bpf_prog_priv { + struct perf_probe_event pev; +}; + +static bool libbpf_initialized; + +struct bpf_object * +bpf__prepare_load_buffer(void *obj_buf, size_t obj_buf_sz, const char *name) +{ + struct bpf_object *obj; + + if (!libbpf_initialized) { + libbpf_set_print(libbpf_warning, + libbpf_info, + libbpf_debug); + libbpf_initialized = true; + } + + obj = bpf_object__open_buffer(obj_buf, obj_buf_sz, name); + if (IS_ERR(obj)) { + pr_debug("bpf: failed to load buffer\n"); + return ERR_PTR(-EINVAL); + } + + return obj; +} + +struct bpf_object *bpf__prepare_load(const char *filename, bool source) +{ + struct bpf_object *obj; + + if (!libbpf_initialized) { + libbpf_set_print(libbpf_warning, + libbpf_info, + libbpf_debug); + libbpf_initialized = true; + } + + if (source) { + int err; + void *obj_buf; + size_t obj_buf_sz; + + err = llvm__compile_bpf(filename, &obj_buf, &obj_buf_sz); + if (err) + return ERR_PTR(-BPF_LOADER_ERRNO__COMPILE); + obj = bpf_object__open_buffer(obj_buf, obj_buf_sz, filename); + free(obj_buf); + } else + obj = bpf_object__open(filename); + + if (IS_ERR(obj)) { + pr_debug("bpf: failed to load %s\n", filename); + return obj; + } + + return obj; +} + +void bpf__clear(void) +{ + struct bpf_object *obj, *tmp; + + bpf_object__for_each_safe(obj, tmp) { + bpf__unprobe(obj); + bpf_object__close(obj); + } +} + +static void +bpf_prog_priv__clear(struct bpf_program *prog __maybe_unused, + void *_priv) +{ + struct bpf_prog_priv *priv = _priv; + + cleanup_perf_probe_events(&priv->pev, 1); + free(priv); +} + +static int +config_bpf_program(struct bpf_program *prog) +{ + struct perf_probe_event *pev = NULL; + struct bpf_prog_priv *priv = NULL; + const char *config_str; + int err; + + config_str = bpf_program__title(prog, false); + if (IS_ERR(config_str)) { + pr_debug("bpf: unable to get title for program\n"); + return PTR_ERR(config_str); + } + + priv = calloc(sizeof(*priv), 1); + if (!priv) { + pr_debug("bpf: failed to alloc priv\n"); + return -ENOMEM; + } + pev = &priv->pev; + + pr_debug("bpf: config program '%s'\n", config_str); + err = parse_perf_probe_command(config_str, pev); + if (err < 0) { + pr_debug("bpf: '%s' is not a valid config string\n", + config_str); + err = -BPF_LOADER_ERRNO__CONFIG; + goto errout; + } + + if (pev->group && strcmp(pev->group, PERF_BPF_PROBE_GROUP)) { + pr_debug("bpf: '%s': group for event is set and not '%s'.\n", + config_str, PERF_BPF_PROBE_GROUP); + err = -BPF_LOADER_ERRNO__GROUP; + goto errout; + } else if (!pev->group) + pev->group = strdup(PERF_BPF_PROBE_GROUP); + + if (!pev->group) { + pr_debug("bpf: strdup failed\n"); + err = -ENOMEM; + goto errout; + } + + if (!pev->event) { + pr_debug("bpf: '%s': event name is missing. Section name should be 'key=value'\n", + config_str); + err = -BPF_LOADER_ERRNO__EVENTNAME; + goto errout; + } + pr_debug("bpf: config '%s' is ok\n", config_str); + + err = bpf_program__set_private(prog, priv, bpf_prog_priv__clear); + if (err) { + pr_debug("Failed to set priv for program '%s'\n", config_str); + goto errout; + } + + return 0; + +errout: + if (pev) + clear_perf_probe_event(pev); + free(priv); + return err; +} + +static int bpf__prepare_probe(void) +{ + static int err = 0; + static bool initialized = false; + + /* + * Make err static, so if init failed the first, bpf__prepare_probe() + * fails each time without calling init_probe_symbol_maps multiple + * times. + */ + if (initialized) + return err; + + initialized = true; + err = init_probe_symbol_maps(false); + if (err < 0) + pr_debug("Failed to init_probe_symbol_maps\n"); + probe_conf.max_probes = MAX_PROBES; + return err; +} + +int bpf__probe(struct bpf_object *obj) +{ + int err = 0; + struct bpf_program *prog; + struct bpf_prog_priv *priv; + struct perf_probe_event *pev; + + err = bpf__prepare_probe(); + if (err) { + pr_debug("bpf__prepare_probe failed\n"); + return err; + } + + bpf_object__for_each_program(prog, obj) { + err = config_bpf_program(prog); + if (err) + goto out; + + err = bpf_program__get_private(prog, (void **)&priv); + if (err || !priv) + goto out; + pev = &priv->pev; + + err = convert_perf_probe_events(pev, 1); + if (err < 0) { + pr_debug("bpf_probe: failed to convert perf probe events"); + goto out; + } + + err = apply_perf_probe_events(pev, 1); + if (err < 0) { + pr_debug("bpf_probe: failed to apply perf probe events"); + goto out; + } + } +out: + return err < 0 ? err : 0; +} + +#define EVENTS_WRITE_BUFSIZE 4096 +int bpf__unprobe(struct bpf_object *obj) +{ + int err, ret = 0; + struct bpf_program *prog; + struct bpf_prog_priv *priv; + + bpf_object__for_each_program(prog, obj) { + int i; + + err = bpf_program__get_private(prog, (void **)&priv); + if (err || !priv) + continue; + + for (i = 0; i < priv->pev.ntevs; i++) { + struct probe_trace_event *tev = &priv->pev.tevs[i]; + char name_buf[EVENTS_WRITE_BUFSIZE]; + struct strfilter *delfilter; + + snprintf(name_buf, EVENTS_WRITE_BUFSIZE, + "%s:%s", tev->group, tev->event); + name_buf[EVENTS_WRITE_BUFSIZE - 1] = '\0'; + + delfilter = strfilter__new(name_buf, NULL); + if (!delfilter) { + pr_debug("Failed to create filter for unprobing\n"); + ret = -ENOMEM; + continue; + } + + err = del_perf_probe_events(delfilter); + strfilter__delete(delfilter); + if (err) { + pr_debug("Failed to delete %s\n", name_buf); + ret = err; + continue; + } + } + } + return ret; +} + +int bpf__load(struct bpf_object *obj) +{ + int err; + + err = bpf_object__load(obj); + if (err) { + pr_debug("bpf: load objects failed\n"); + return err; + } + return 0; +} + +int bpf__foreach_tev(struct bpf_object *obj, + bpf_prog_iter_callback_t func, + void *arg) +{ + struct bpf_program *prog; + int err; + + bpf_object__for_each_program(prog, obj) { + struct probe_trace_event *tev; + struct perf_probe_event *pev; + struct bpf_prog_priv *priv; + int i, fd; + + err = bpf_program__get_private(prog, + (void **)&priv); + if (err || !priv) { + pr_debug("bpf: failed to get private field\n"); + return -BPF_LOADER_ERRNO__INTERNAL; + } + + pev = &priv->pev; + for (i = 0; i < pev->ntevs; i++) { + tev = &pev->tevs[i]; + + fd = bpf_program__fd(prog); + if (fd < 0) { + pr_debug("bpf: failed to get file descriptor\n"); + return fd; + } + + err = (*func)(tev, fd, arg); + if (err) { + pr_debug("bpf: call back failed, stop iterate\n"); + return err; + } + } + } + return 0; +} + +#define ERRNO_OFFSET(e) ((e) - __BPF_LOADER_ERRNO__START) +#define ERRCODE_OFFSET(c) ERRNO_OFFSET(BPF_LOADER_ERRNO__##c) +#define NR_ERRNO (__BPF_LOADER_ERRNO__END - __BPF_LOADER_ERRNO__START) + +static const char *bpf_loader_strerror_table[NR_ERRNO] = { + [ERRCODE_OFFSET(CONFIG)] = "Invalid config string", + [ERRCODE_OFFSET(GROUP)] = "Invalid group name", + [ERRCODE_OFFSET(EVENTNAME)] = "No event name found in config string", + [ERRCODE_OFFSET(INTERNAL)] = "BPF loader internal error", + [ERRCODE_OFFSET(COMPILE)] = "Error when compiling BPF scriptlet", +}; + +static int +bpf_loader_strerror(int err, char *buf, size_t size) +{ + char sbuf[STRERR_BUFSIZE]; + const char *msg; + + if (!buf || !size) + return -1; + + err = err > 0 ? err : -err; + + if (err >= __LIBBPF_ERRNO__START) + return libbpf_strerror(err, buf, size); + + if (err >= __BPF_LOADER_ERRNO__START && err < __BPF_LOADER_ERRNO__END) { + msg = bpf_loader_strerror_table[ERRNO_OFFSET(err)]; + snprintf(buf, size, "%s", msg); + buf[size - 1] = '\0'; + return 0; + } + + if (err >= __BPF_LOADER_ERRNO__END) + snprintf(buf, size, "Unknown bpf loader error %d", err); + else + snprintf(buf, size, "%s", + strerror_r(err, sbuf, sizeof(sbuf))); + + buf[size - 1] = '\0'; + return -1; +} + +#define bpf__strerror_head(err, buf, size) \ + char sbuf[STRERR_BUFSIZE], *emsg;\ + if (!size)\ + return 0;\ + if (err < 0)\ + err = -err;\ + bpf_loader_strerror(err, sbuf, sizeof(sbuf));\ + emsg = sbuf;\ + switch (err) {\ + default:\ + scnprintf(buf, size, "%s", emsg);\ + break; + +#define bpf__strerror_entry(val, fmt...)\ + case val: {\ + scnprintf(buf, size, fmt);\ + break;\ + } + +#define bpf__strerror_end(buf, size)\ + }\ + buf[size - 1] = '\0'; + +int bpf__strerror_prepare_load(const char *filename, bool source, + int err, char *buf, size_t size) +{ + size_t n; + int ret; + + n = snprintf(buf, size, "Failed to load %s%s: ", + filename, source ? " from source" : ""); + if (n >= size) { + buf[size - 1] = '\0'; + return 0; + } + buf += n; + size -= n; + + ret = bpf_loader_strerror(err, buf, size); + buf[size - 1] = '\0'; + return ret; +} + +int bpf__strerror_probe(struct bpf_object *obj __maybe_unused, + int err, char *buf, size_t size) +{ + bpf__strerror_head(err, buf, size); + bpf__strerror_entry(EEXIST, "Probe point exist. Try use 'perf probe -d \"*\"'"); + bpf__strerror_entry(EACCES, "You need to be root"); + bpf__strerror_entry(EPERM, "You need to be root, and /proc/sys/kernel/kptr_restrict should be 0"); + bpf__strerror_entry(ENOENT, "You need to check probing points in BPF file"); + bpf__strerror_end(buf, size); + return 0; +} + +int bpf__strerror_load(struct bpf_object *obj, + int err, char *buf, size_t size) +{ + bpf__strerror_head(err, buf, size); + case LIBBPF_ERRNO__KVER: { + unsigned int obj_kver = bpf_object__get_kversion(obj); + unsigned int real_kver; + + if (fetch_kernel_version(&real_kver, NULL, 0)) { + scnprintf(buf, size, "Unable to fetch kernel version"); + break; + } + + if (obj_kver != real_kver) { + scnprintf(buf, size, + "'version' ("KVER_FMT") doesn't match running kernel ("KVER_FMT")", + KVER_PARAM(obj_kver), + KVER_PARAM(real_kver)); + break; + } + + scnprintf(buf, size, "Failed to load program for unknown reason"); + break; + } + bpf__strerror_end(buf, size); + return 0; +} diff --git a/tools/perf/util/bpf-loader.h b/tools/perf/util/bpf-loader.h new file mode 100644 index 000000000..9caf3ae4a --- /dev/null +++ b/tools/perf/util/bpf-loader.h @@ -0,0 +1,118 @@ +/* + * Copyright (C) 2015, Wang Nan <wangnan0@huawei.com> + * Copyright (C) 2015, Huawei Inc. + */ +#ifndef __BPF_LOADER_H +#define __BPF_LOADER_H + +#include <linux/compiler.h> +#include <linux/err.h> +#include <string.h> +#include <bpf/libbpf.h> +#include "probe-event.h" +#include "debug.h" + +enum bpf_loader_errno { + __BPF_LOADER_ERRNO__START = __LIBBPF_ERRNO__START - 100, + /* Invalid config string */ + BPF_LOADER_ERRNO__CONFIG = __BPF_LOADER_ERRNO__START, + BPF_LOADER_ERRNO__GROUP, /* Invalid group name */ + BPF_LOADER_ERRNO__EVENTNAME, /* Event name is missing */ + BPF_LOADER_ERRNO__INTERNAL, /* BPF loader internal error */ + BPF_LOADER_ERRNO__COMPILE, /* Error when compiling BPF scriptlet */ + __BPF_LOADER_ERRNO__END, +}; + +struct bpf_object; +#define PERF_BPF_PROBE_GROUP "perf_bpf_probe" + +typedef int (*bpf_prog_iter_callback_t)(struct probe_trace_event *tev, + int fd, void *arg); + +#ifdef HAVE_LIBBPF_SUPPORT +struct bpf_object *bpf__prepare_load(const char *filename, bool source); +int bpf__strerror_prepare_load(const char *filename, bool source, + int err, char *buf, size_t size); + +struct bpf_object *bpf__prepare_load_buffer(void *obj_buf, size_t obj_buf_sz, + const char *name); + +void bpf__clear(void); + +int bpf__probe(struct bpf_object *obj); +int bpf__unprobe(struct bpf_object *obj); +int bpf__strerror_probe(struct bpf_object *obj, int err, + char *buf, size_t size); + +int bpf__load(struct bpf_object *obj); +int bpf__strerror_load(struct bpf_object *obj, int err, + char *buf, size_t size); +int bpf__foreach_tev(struct bpf_object *obj, + bpf_prog_iter_callback_t func, void *arg); +#else +static inline struct bpf_object * +bpf__prepare_load(const char *filename __maybe_unused, + bool source __maybe_unused) +{ + pr_debug("ERROR: eBPF object loading is disabled during compiling.\n"); + return ERR_PTR(-ENOTSUP); +} + +static inline struct bpf_object * +bpf__prepare_load_buffer(void *obj_buf __maybe_unused, + size_t obj_buf_sz __maybe_unused) +{ + return ERR_PTR(-ENOTSUP); +} + +static inline void bpf__clear(void) { } + +static inline int bpf__probe(struct bpf_object *obj __maybe_unused) { return 0;} +static inline int bpf__unprobe(struct bpf_object *obj __maybe_unused) { return 0;} +static inline int bpf__load(struct bpf_object *obj __maybe_unused) { return 0; } + +static inline int +bpf__foreach_tev(struct bpf_object *obj __maybe_unused, + bpf_prog_iter_callback_t func __maybe_unused, + void *arg __maybe_unused) +{ + return 0; +} + +static inline int +__bpf_strerror(char *buf, size_t size) +{ + if (!size) + return 0; + strncpy(buf, + "ERROR: eBPF object loading is disabled during compiling.\n", + size); + buf[size - 1] = '\0'; + return 0; +} + +static inline +int bpf__strerror_prepare_load(const char *filename __maybe_unused, + bool source __maybe_unused, + int err __maybe_unused, + char *buf, size_t size) +{ + return __bpf_strerror(buf, size); +} + +static inline int +bpf__strerror_probe(struct bpf_object *obj __maybe_unused, + int err __maybe_unused, + char *buf, size_t size) +{ + return __bpf_strerror(buf, size); +} + +static inline int bpf__strerror_load(struct bpf_object *obj __maybe_unused, + int err __maybe_unused, + char *buf, size_t size) +{ + return __bpf_strerror(buf, size); +} +#endif +#endif diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c index d909459fb..6a7e273a5 100644 --- a/tools/perf/util/build-id.c +++ b/tools/perf/util/build-id.c @@ -76,6 +76,7 @@ struct perf_tool build_id__mark_dso_hit_ops = { .exit = perf_event__exit_del_thread, .attr = perf_event__process_attr, .build_id = perf_event__process_build_id, + .ordered_events = true, }; int build_id__sprintf(const u8 *build_id, int len, char *bf) @@ -90,7 +91,7 @@ int build_id__sprintf(const u8 *build_id, int len, char *bf) bid += 2; } - return raw - build_id; + return (bid - bf) + 1; } int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id) diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c index 773fe13ce..735ad48e1 100644 --- a/tools/perf/util/callchain.c +++ b/tools/perf/util/callchain.c @@ -51,10 +51,12 @@ static int parse_callchain_order(const char *value) { if (!strncmp(value, "caller", strlen(value))) { callchain_param.order = ORDER_CALLER; + callchain_param.order_set = true; return 0; } if (!strncmp(value, "callee", strlen(value))) { callchain_param.order = ORDER_CALLEE; + callchain_param.order_set = true; return 0; } return -1; @@ -77,12 +79,14 @@ static int parse_callchain_sort_key(const char *value) return -1; } -int -parse_callchain_report_opt(const char *arg) +static int +__parse_callchain_report_opt(const char *arg, bool allow_record_opt) { char *tok; char *endptr; bool minpcnt_set = false; + bool record_opt_set = false; + bool try_stack_size = false; symbol_conf.use_callchain = true; @@ -100,6 +104,28 @@ parse_callchain_report_opt(const char *arg) !parse_callchain_order(tok) || !parse_callchain_sort_key(tok)) { /* parsing ok - move on to the next */ + try_stack_size = false; + goto next; + } else if (allow_record_opt && !record_opt_set) { + if (parse_callchain_record(tok, &callchain_param)) + goto try_numbers; + + /* assume that number followed by 'dwarf' is stack size */ + if (callchain_param.record_mode == CALLCHAIN_DWARF) + try_stack_size = true; + + record_opt_set = true; + goto next; + } + +try_numbers: + if (try_stack_size) { + unsigned long size = 0; + + if (get_stack_size(tok, &size) < 0) + return -1; + callchain_param.dump_size = size; + try_stack_size = false; } else if (!minpcnt_set) { /* try to get the min percent */ callchain_param.min_percent = strtod(tok, &endptr); @@ -112,7 +138,7 @@ parse_callchain_report_opt(const char *arg) if (tok == endptr) return -1; } - +next: arg = NULL; } @@ -123,6 +149,16 @@ parse_callchain_report_opt(const char *arg) return 0; } +int parse_callchain_report_opt(const char *arg) +{ + return __parse_callchain_report_opt(arg, false); +} + +int parse_callchain_top_opt(const char *arg) +{ + return __parse_callchain_report_opt(arg, true); +} + int perf_callchain_config(const char *var, const char *value) { char *endptr; diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h index acee2b3cd..fce8161e5 100644 --- a/tools/perf/util/callchain.h +++ b/tools/perf/util/callchain.h @@ -7,6 +7,30 @@ #include "event.h" #include "symbol.h" +#define HELP_PAD "\t\t\t\t" + +#define CALLCHAIN_HELP "setup and enables call-graph (stack chain/backtrace):\n\n" + +#ifdef HAVE_DWARF_UNWIND_SUPPORT +# define RECORD_MODE_HELP HELP_PAD "record_mode:\tcall graph recording mode (fp|dwarf|lbr)\n" +#else +# define RECORD_MODE_HELP HELP_PAD "record_mode:\tcall graph recording mode (fp|lbr)\n" +#endif + +#define RECORD_SIZE_HELP \ + HELP_PAD "record_size:\tif record_mode is 'dwarf', max size of stack recording (<bytes>)\n" \ + HELP_PAD "\t\tdefault: 8192 (bytes)\n" + +#define CALLCHAIN_RECORD_HELP CALLCHAIN_HELP RECORD_MODE_HELP RECORD_SIZE_HELP + +#define CALLCHAIN_REPORT_HELP \ + HELP_PAD "print_type:\tcall graph printing style (graph|flat|fractal|none)\n" \ + HELP_PAD "threshold:\tminimum call graph inclusion threshold (<percent>)\n" \ + HELP_PAD "print_limit:\tmaximum number of call graph entry (<number>)\n" \ + HELP_PAD "order:\t\tcall graph order (caller|callee)\n" \ + HELP_PAD "sort_key:\tcall graph sort key (function|address)\n" \ + HELP_PAD "branch:\t\tinclude last branch info to call graph (branch)\n" + enum perf_call_graph_mode { CALLCHAIN_NONE, CALLCHAIN_FP, @@ -63,6 +87,7 @@ struct callchain_param { double min_percent; sort_chain_func_t sort; enum chain_order order; + bool order_set; enum chain_key key; bool branch_callstack; }; @@ -180,6 +205,7 @@ extern const char record_callchain_help[]; extern int parse_callchain_record(const char *arg, struct callchain_param *param); int parse_callchain_record_opt(const char *arg, struct callchain_param *param); int parse_callchain_report_opt(const char *arg); +int parse_callchain_top_opt(const char *arg); int perf_callchain_config(const char *var, const char *value); static inline void callchain_cursor_snapshot(struct callchain_cursor *dest, diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c index 3667e2123..10af1e752 100644 --- a/tools/perf/util/cpumap.c +++ b/tools/perf/util/cpumap.c @@ -203,6 +203,23 @@ struct cpu_map *cpu_map__dummy_new(void) return cpus; } +struct cpu_map *cpu_map__empty_new(int nr) +{ + struct cpu_map *cpus = malloc(sizeof(*cpus) + sizeof(int) * nr); + + if (cpus != NULL) { + int i; + + cpus->nr = nr; + for (i = 0; i < nr; i++) + cpus->map[i] = -1; + + atomic_set(&cpus->refcnt, 1); + } + + return cpus; +} + static void cpu_map__delete(struct cpu_map *map) { if (map) { @@ -225,32 +242,32 @@ void cpu_map__put(struct cpu_map *map) cpu_map__delete(map); } -int cpu_map__get_socket(struct cpu_map *map, int idx) +static int cpu__get_topology_int(int cpu, const char *name, int *value) { - FILE *fp; - const char *mnt; char path[PATH_MAX]; - int cpu, ret; - if (idx > map->nr) - return -1; + snprintf(path, PATH_MAX, + "devices/system/cpu/cpu%d/topology/%s", cpu, name); - cpu = map->map[idx]; + return sysfs__read_int(path, value); +} - mnt = sysfs__mountpoint(); - if (!mnt) - return -1; +int cpu_map__get_socket_id(int cpu) +{ + int value, ret = cpu__get_topology_int(cpu, "physical_package_id", &value); + return ret ?: value; +} - snprintf(path, PATH_MAX, - "%s/devices/system/cpu/cpu%d/topology/physical_package_id", - mnt, cpu); +int cpu_map__get_socket(struct cpu_map *map, int idx, void *data __maybe_unused) +{ + int cpu; - fp = fopen(path, "r"); - if (!fp) + if (idx > map->nr) return -1; - ret = fscanf(fp, "%d", &cpu); - fclose(fp); - return ret == 1 ? cpu : -1; + + cpu = map->map[idx]; + + return cpu_map__get_socket_id(cpu); } static int cmp_ids(const void *a, const void *b) @@ -258,8 +275,9 @@ static int cmp_ids(const void *a, const void *b) return *(int *)a - *(int *)b; } -static int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res, - int (*f)(struct cpu_map *map, int cpu)) +int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res, + int (*f)(struct cpu_map *map, int cpu, void *data), + void *data) { struct cpu_map *c; int nr = cpus->nr; @@ -271,7 +289,7 @@ static int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res, return -1; for (cpu = 0; cpu < nr; cpu++) { - s1 = f(cpus, cpu); + s1 = f(cpus, cpu, data); for (s2 = 0; s2 < c->nr; s2++) { if (s1 == c->map[s2]) break; @@ -284,40 +302,29 @@ static int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res, /* ensure we process id in increasing order */ qsort(c->map, c->nr, sizeof(int), cmp_ids); - atomic_set(&cpus->refcnt, 1); + atomic_set(&c->refcnt, 1); *res = c; return 0; } -int cpu_map__get_core(struct cpu_map *map, int idx) +int cpu_map__get_core_id(int cpu) { - FILE *fp; - const char *mnt; - char path[PATH_MAX]; - int cpu, ret, s; + int value, ret = cpu__get_topology_int(cpu, "core_id", &value); + return ret ?: value; +} + +int cpu_map__get_core(struct cpu_map *map, int idx, void *data) +{ + int cpu, s; if (idx > map->nr) return -1; cpu = map->map[idx]; - mnt = sysfs__mountpoint(); - if (!mnt) - return -1; - - snprintf(path, PATH_MAX, - "%s/devices/system/cpu/cpu%d/topology/core_id", - mnt, cpu); - - fp = fopen(path, "r"); - if (!fp) - return -1; - ret = fscanf(fp, "%d", &cpu); - fclose(fp); - if (ret != 1) - return -1; + cpu = cpu_map__get_core_id(cpu); - s = cpu_map__get_socket(map, idx); + s = cpu_map__get_socket(map, idx, data); if (s == -1) return -1; @@ -332,12 +339,12 @@ int cpu_map__get_core(struct cpu_map *map, int idx) int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp) { - return cpu_map__build_map(cpus, sockp, cpu_map__get_socket); + return cpu_map__build_map(cpus, sockp, cpu_map__get_socket, NULL); } int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep) { - return cpu_map__build_map(cpus, corep, cpu_map__get_core); + return cpu_map__build_map(cpus, corep, cpu_map__get_core, NULL); } /* setup simple routines to easily access node numbers given a cpu number */ diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h index 0af9cecb4..85f777245 100644 --- a/tools/perf/util/cpumap.h +++ b/tools/perf/util/cpumap.h @@ -15,11 +15,14 @@ struct cpu_map { }; struct cpu_map *cpu_map__new(const char *cpu_list); +struct cpu_map *cpu_map__empty_new(int nr); struct cpu_map *cpu_map__dummy_new(void); struct cpu_map *cpu_map__read(FILE *file); size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp); -int cpu_map__get_socket(struct cpu_map *map, int idx); -int cpu_map__get_core(struct cpu_map *map, int idx); +int cpu_map__get_socket_id(int cpu); +int cpu_map__get_socket(struct cpu_map *map, int idx, void *data); +int cpu_map__get_core_id(int cpu); +int cpu_map__get_core(struct cpu_map *map, int idx, void *data); int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp); int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep); @@ -85,4 +88,7 @@ static inline int cpu__get_node(int cpu) return cpunode_map[cpu]; } +int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res, + int (*f)(struct cpu_map *map, int cpu, void *data), + void *data); #endif /* __PERF_CPUMAP_H */ diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c index 7c0c08386..425df5c86 100644 --- a/tools/perf/util/dso.c +++ b/tools/perf/util/dso.c @@ -933,6 +933,7 @@ static struct dso *__dso__findlink_by_longname(struct rb_root *root, /* Add new node and rebalance tree */ rb_link_node(&dso->rb_node, parent, p); rb_insert_color(&dso->rb_node, root); + dso->root = root; } return NULL; } @@ -945,15 +946,30 @@ static inline struct dso *__dso__find_by_longname(struct rb_root *root, void dso__set_long_name(struct dso *dso, const char *name, bool name_allocated) { + struct rb_root *root = dso->root; + if (name == NULL) return; if (dso->long_name_allocated) free((char *)dso->long_name); + if (root) { + rb_erase(&dso->rb_node, root); + /* + * __dso__findlink_by_longname() isn't guaranteed to add it + * back, so a clean removal is required here. + */ + RB_CLEAR_NODE(&dso->rb_node); + dso->root = NULL; + } + dso->long_name = name; dso->long_name_len = strlen(name); dso->long_name_allocated = name_allocated; + + if (root) + __dso__findlink_by_longname(root, dso, NULL); } void dso__set_short_name(struct dso *dso, const char *name, bool name_allocated) @@ -1046,6 +1062,7 @@ struct dso *dso__new(const char *name) dso->kernel = DSO_TYPE_USER; dso->needs_swap = DSO_SWAP__UNSET; RB_CLEAR_NODE(&dso->rb_node); + dso->root = NULL; INIT_LIST_HEAD(&dso->node); INIT_LIST_HEAD(&dso->data.open_entry); pthread_mutex_init(&dso->lock, NULL); diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h index fc8db9c76..45ec4d0a5 100644 --- a/tools/perf/util/dso.h +++ b/tools/perf/util/dso.h @@ -135,6 +135,7 @@ struct dso { pthread_mutex_t lock; struct list_head node; struct rb_node rb_node; /* rbtree node sorted by long name */ + struct rb_root *root; /* root of rbtree that rb_node is in */ struct rb_root symbols[MAP__NR_TYPES]; struct rb_root symbol_names[MAP__NR_TYPES]; struct { diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c new file mode 100644 index 000000000..6af4f7c36 --- /dev/null +++ b/tools/perf/util/env.c @@ -0,0 +1,86 @@ +#include "cpumap.h" +#include "env.h" +#include "util.h" + +struct perf_env perf_env; + +void perf_env__exit(struct perf_env *env) +{ + zfree(&env->hostname); + zfree(&env->os_release); + zfree(&env->version); + zfree(&env->arch); + zfree(&env->cpu_desc); + zfree(&env->cpuid); + zfree(&env->cmdline); + zfree(&env->cmdline_argv); + zfree(&env->sibling_cores); + zfree(&env->sibling_threads); + zfree(&env->numa_nodes); + zfree(&env->pmu_mappings); + zfree(&env->cpu); +} + +int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]) +{ + int i; + + /* + * If env->cmdline_argv has already been set, do not override it. This allows + * a command to set the cmdline, parse args and then call another + * builtin function that implements a command -- e.g, cmd_kvm calling + * cmd_record. + */ + if (env->cmdline_argv != NULL) + return 0; + + /* do not include NULL termination */ + env->cmdline_argv = calloc(argc, sizeof(char *)); + if (env->cmdline_argv == NULL) + goto out_enomem; + + /* + * Must copy argv contents because it gets moved around during option + * parsing: + */ + for (i = 0; i < argc ; i++) { + env->cmdline_argv[i] = argv[i]; + if (env->cmdline_argv[i] == NULL) + goto out_free; + } + + env->nr_cmdline = argc; + + return 0; +out_free: + zfree(&env->cmdline_argv); +out_enomem: + return -ENOMEM; +} + +int perf_env__read_cpu_topology_map(struct perf_env *env) +{ + int cpu, nr_cpus; + + if (env->cpu != NULL) + return 0; + + if (env->nr_cpus_avail == 0) + env->nr_cpus_avail = sysconf(_SC_NPROCESSORS_CONF); + + nr_cpus = env->nr_cpus_avail; + if (nr_cpus == -1) + return -EINVAL; + + env->cpu = calloc(nr_cpus, sizeof(env->cpu[0])); + if (env->cpu == NULL) + return -ENOMEM; + + for (cpu = 0; cpu < nr_cpus; ++cpu) { + env->cpu[cpu].core_id = cpu_map__get_core_id(cpu); + env->cpu[cpu].socket_id = cpu_map__get_socket_id(cpu); + } + + env->nr_cpus_avail = nr_cpus; + return 0; +} diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h new file mode 100644 index 000000000..0132b9557 --- /dev/null +++ b/tools/perf/util/env.h @@ -0,0 +1,44 @@ +#ifndef __PERF_ENV_H +#define __PERF_ENV_H + +struct cpu_topology_map { + int socket_id; + int core_id; +}; + +struct perf_env { + char *hostname; + char *os_release; + char *version; + char *arch; + int nr_cpus_online; + int nr_cpus_avail; + char *cpu_desc; + char *cpuid; + unsigned long long total_mem; + unsigned int msr_pmu_type; + + int nr_cmdline; + int nr_sibling_cores; + int nr_sibling_threads; + int nr_numa_nodes; + int nr_pmu_mappings; + int nr_groups; + char *cmdline; + const char **cmdline_argv; + char *sibling_cores; + char *sibling_threads; + char *numa_nodes; + char *pmu_mappings; + struct cpu_topology_map *cpu; +}; + +extern struct perf_env perf_env; + +void perf_env__exit(struct perf_env *env); + +int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]); + +int perf_env__read_cpu_topology_map(struct perf_env *env); + +#endif /* __PERF_ENV_H */ diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 7ff61274e..8b10621b4 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -67,7 +67,8 @@ static int perf_event__get_comm_ids(pid_t pid, char *comm, size_t len, char filename[PATH_MAX]; char bf[4096]; int fd; - size_t size = 0, n; + size_t size = 0; + ssize_t n; char *nl, *name, *tgids, *ppids; *tgid = -1; @@ -167,7 +168,7 @@ static int perf_event__prepare_comm(union perf_event *event, pid_t pid, return 0; } -static pid_t perf_event__synthesize_comm(struct perf_tool *tool, +pid_t perf_event__synthesize_comm(struct perf_tool *tool, union perf_event *event, pid_t pid, perf_event__handler_t process, struct machine *machine) @@ -378,7 +379,7 @@ int perf_event__synthesize_modules(struct perf_tool *tool, for (pos = maps__first(maps); pos; pos = map__next(pos)) { size_t size; - if (pos->dso->kernel) + if (__map__is_kernel(pos)) continue; size = PERF_ALIGN(pos->dso->long_name_len + 1, sizeof(u64)); @@ -649,12 +650,12 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, size_t size; const char *mmap_name; char name_buff[PATH_MAX]; - struct map *map; + struct map *map = machine__kernel_map(machine); struct kmap *kmap; int err; union perf_event *event; - if (machine->vmlinux_maps[0] == NULL) + if (map == NULL) return -1; /* @@ -680,7 +681,6 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; } - map = machine->vmlinux_maps[MAP__FUNCTION]; kmap = map__kmap(map); size = snprintf(event->mmap.filename, sizeof(event->mmap.filename), "%s%s", mmap_name, kmap->ref_reloc_sym->name) + 1; @@ -1008,7 +1008,7 @@ int perf_event__preprocess_sample(const union perf_event *event, * it now. */ if (cpumode == PERF_RECORD_MISC_KERNEL && - machine->vmlinux_maps[MAP__FUNCTION] == NULL) + machine__kernel_map(machine) == NULL) machine__create_kernel_maps(machine); thread__find_addr_map(thread, cpumode, MAP__FUNCTION, sample->ip, al); @@ -1021,6 +1021,14 @@ int perf_event__preprocess_sample(const union perf_event *event, al->sym = NULL; al->cpu = sample->cpu; + al->socket = -1; + + if (al->cpu >= 0) { + struct perf_env *env = machine->env; + + if (env && env->cpu) + al->socket = env->cpu[al->cpu].socket_id; + } if (al->map) { struct dso *dso = al->map->dso; diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index f729df5e2..a0dbcbd4f 100644 --- a/tools/perf/util/event.h +++ b/tools/perf/util/event.h @@ -257,6 +257,7 @@ struct events_stats { u64 total_non_filtered_period; u64 total_lost; u64 total_lost_samples; + u64 total_aux_lost; u64 total_invalid_chains; u32 nr_events[PERF_RECORD_HEADER_MAX]; u32 nr_non_filtered_samples; @@ -478,6 +479,11 @@ int perf_event__synthesize_sample(union perf_event *event, u64 type, const struct perf_sample *sample, bool swapped); +pid_t perf_event__synthesize_comm(struct perf_tool *tool, + union perf_event *event, pid_t pid, + perf_event__handler_t process, + struct machine *machine); + int perf_event__synthesize_mmap_events(struct perf_tool *tool, union perf_event *event, pid_t pid, pid_t tgid, diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index c8fc8a258..d1392194a 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -25,6 +25,7 @@ #include <linux/bitops.h> #include <linux/hash.h> #include <linux/log2.h> +#include <linux/err.h> static void perf_evlist__mmap_put(struct perf_evlist *evlist, int idx); static void __perf_evlist__munmap(struct perf_evlist *evlist, int idx); @@ -164,6 +165,13 @@ void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry) __perf_evlist__propagate_maps(evlist, entry); } +void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel) +{ + evsel->evlist = NULL; + list_del_init(&evsel->node); + evlist->nr_entries -= 1; +} + void perf_evlist__splice_list_tail(struct perf_evlist *evlist, struct list_head *list) { @@ -197,6 +205,20 @@ void perf_evlist__set_leader(struct perf_evlist *evlist) } } +void perf_event_attr__set_max_precise_ip(struct perf_event_attr *attr) +{ + attr->precise_ip = 3; + + while (attr->precise_ip != 0) { + int fd = sys_perf_event_open(attr, 0, -1, -1, 0); + if (fd != -1) { + close(fd); + break; + } + --attr->precise_ip; + } +} + int perf_evlist__add_default(struct perf_evlist *evlist) { struct perf_event_attr attr = { @@ -207,13 +229,15 @@ int perf_evlist__add_default(struct perf_evlist *evlist) event_attr_init(&attr); + perf_event_attr__set_max_precise_ip(&attr); + evsel = perf_evsel__new(&attr); if (evsel == NULL) goto error; - /* use strdup() because free(evsel) assumes name is allocated */ - evsel->name = strdup("cycles"); - if (!evsel->name) + /* use asprintf() because free(evsel) assumes name is allocated */ + if (asprintf(&evsel->name, "cycles%.*s", + attr.precise_ip ? attr.precise_ip + 1 : 0, ":ppp") < 0) goto error_free; perf_evlist__add(evlist, evsel); @@ -293,7 +317,7 @@ int perf_evlist__add_newtp(struct perf_evlist *evlist, { struct perf_evsel *evsel = perf_evsel__newtp(sys, name); - if (evsel == NULL) + if (IS_ERR(evsel)) return -1; evsel->handler = handler; @@ -616,6 +640,21 @@ struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id) return NULL; } +struct perf_evsel *perf_evlist__id2evsel_strict(struct perf_evlist *evlist, + u64 id) +{ + struct perf_sample_id *sid; + + if (!id) + return NULL; + + sid = perf_evlist__id2sid(evlist, id); + if (sid) + return sid->evsel; + + return NULL; +} + static int perf_evlist__event2id(struct perf_evlist *evlist, union perf_event *event, u64 *id) { diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 115d8b53c..a459fe71b 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -73,6 +73,7 @@ void perf_evlist__exit(struct perf_evlist *evlist); void perf_evlist__delete(struct perf_evlist *evlist); void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry); +void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel); int perf_evlist__add_default(struct perf_evlist *evlist); int __perf_evlist__add_default_attrs(struct perf_evlist *evlist, struct perf_event_attr *attrs, size_t nr_attrs); @@ -104,6 +105,8 @@ int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mas int perf_evlist__poll(struct perf_evlist *evlist, int timeout); struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id); +struct perf_evsel *perf_evlist__id2evsel_strict(struct perf_evlist *evlist, + u64 id); struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id); @@ -287,4 +290,6 @@ void perf_evlist__to_front(struct perf_evlist *evlist, void perf_evlist__set_tracking_event(struct perf_evlist *evlist, struct perf_evsel *tracking_evsel); + +void perf_event_attr__set_max_precise_ip(struct perf_event_attr *attr); #endif /* __PERF_EVLIST_H */ diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 5410483d5..397fb4ed3 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -9,10 +9,11 @@ #include <byteswap.h> #include <linux/bitops.h> -#include <api/fs/debugfs.h> +#include <api/fs/tracing_path.h> #include <traceevent/event-parse.h> #include <linux/hw_breakpoint.h> #include <linux/perf_event.h> +#include <linux/err.h> #include <sys/resource.h> #include "asm/bug.h" #include "callchain.h" @@ -207,6 +208,7 @@ void perf_evsel__init(struct perf_evsel *evsel, evsel->unit = ""; evsel->scale = 1.0; evsel->evlist = NULL; + evsel->bpf_fd = -1; INIT_LIST_HEAD(&evsel->node); INIT_LIST_HEAD(&evsel->config_terms); perf_evsel__object.init(evsel); @@ -225,11 +227,17 @@ struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx) return evsel; } +/* + * Returns pointer with encoded error via <linux/err.h> interface. + */ struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx) { struct perf_evsel *evsel = zalloc(perf_evsel__object.size); + int err = -ENOMEM; - if (evsel != NULL) { + if (evsel == NULL) { + goto out_err; + } else { struct perf_event_attr attr = { .type = PERF_TYPE_TRACEPOINT, .sample_type = (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | @@ -240,8 +248,10 @@ struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int goto out_free; evsel->tp_format = trace_event__tp_format(sys, name); - if (evsel->tp_format == NULL) + if (IS_ERR(evsel->tp_format)) { + err = PTR_ERR(evsel->tp_format); goto out_free; + } event_attr_init(&attr); attr.config = evsel->tp_format->id; @@ -254,7 +264,8 @@ struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int out_free: zfree(&evsel->name); free(evsel); - return NULL; +out_err: + return ERR_PTR(err); } const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX] = { @@ -642,6 +653,15 @@ static void apply_config_terms(struct perf_evsel *evsel, case PERF_EVSEL__CONFIG_TERM_STACK_USER: dump_size = term->val.stack_user; break; + case PERF_EVSEL__CONFIG_TERM_INHERIT: + /* + * attr->inherit should has already been set by + * perf_evsel__config. If user explicitly set + * inherit using config terms, override global + * opt->no_inherit setting. + */ + attr->inherit = term->val.inherit ? 1 : 0; + break; default: break; } @@ -872,6 +892,9 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts) attr->clockid = opts->clockid; } + if (evsel->precise_max) + perf_event_attr__set_max_precise_ip(attr); + /* * Apply event specific term settings, * it overloads any global configuration. @@ -1168,7 +1191,7 @@ static void __p_sample_type(char *buf, size_t size, u64 value) bit_name(READ), bit_name(CALLCHAIN), bit_name(ID), bit_name(CPU), bit_name(PERIOD), bit_name(STREAM_ID), bit_name(RAW), bit_name(BRANCH_STACK), bit_name(REGS_USER), bit_name(STACK_USER), - bit_name(IDENTIFIER), bit_name(REGS_INTR), + bit_name(IDENTIFIER), bit_name(REGS_INTR), bit_name(DATA_SRC), { .name = NULL, } }; #undef bit_name @@ -1249,6 +1272,7 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr, PRINT_ATTRf(bp_type, p_unsigned); PRINT_ATTRn("{ bp_addr, config1 }", bp_addr, p_hex); PRINT_ATTRn("{ bp_len, config2 }", bp_len, p_hex); + PRINT_ATTRf(branch_sample_type, p_unsigned); PRINT_ATTRf(sample_regs_user, p_hex); PRINT_ATTRf(sample_stack_user, p_unsigned); PRINT_ATTRf(clockid, p_signed); @@ -1333,6 +1357,22 @@ retry_open: err); goto try_fallback; } + + if (evsel->bpf_fd >= 0) { + int evt_fd = FD(evsel, cpu, thread); + int bpf_fd = evsel->bpf_fd; + + err = ioctl(evt_fd, + PERF_EVENT_IOC_SET_BPF, + bpf_fd); + if (err && errno != EEXIST) { + pr_err("failed to attach bpf fd %d: %s\n", + bpf_fd, strerror(errno)); + err = -EINVAL; + goto out_close; + } + } + set_rlimit = NO_CHANGE; /* diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index ef8925f72..0e49bd742 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -43,6 +43,7 @@ enum { PERF_EVSEL__CONFIG_TERM_TIME, PERF_EVSEL__CONFIG_TERM_CALLGRAPH, PERF_EVSEL__CONFIG_TERM_STACK_USER, + PERF_EVSEL__CONFIG_TERM_INHERIT, PERF_EVSEL__CONFIG_TERM_MAX, }; @@ -55,6 +56,7 @@ struct perf_evsel_config_term { bool time; char *callgraph; u64 stack_user; + bool inherit; } val; }; @@ -90,9 +92,9 @@ struct perf_evsel { double scale; const char *unit; struct event_format *tp_format; + off_t id_offset; union { void *priv; - off_t id_offset; u64 db_id; }; struct cgroup_sel *cgrp; @@ -111,6 +113,7 @@ struct perf_evsel { bool system_wide; bool tracking; bool per_pkg; + bool precise_max; /* parse modifier helper */ int exclude_GH; int nr_members; @@ -120,6 +123,7 @@ struct perf_evsel { char *group_name; bool cmdline_group_boundary; struct list_head config_terms; + int bpf_fd; }; union u64_swap { @@ -130,7 +134,6 @@ union u64_swap { struct cpu_map; struct target; struct thread_map; -struct perf_evlist; struct record_opts; static inline struct cpu_map *perf_evsel__cpus(struct perf_evsel *evsel) @@ -162,6 +165,9 @@ static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr) struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx); +/* + * Returns pointer with encoded error via <linux/err.h> interface. + */ static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name) { return perf_evsel__newtp_idx(sys, name, 0); diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index fce6634ae..43838003c 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -24,9 +24,6 @@ #include "build-id.h" #include "data.h" -static u32 header_argc; -static const char **header_argv; - /* * magic2 = "PERFILE2" * must be a numerical value to let the endianness @@ -88,6 +85,9 @@ int write_padded(int fd, const void *bf, size_t count, size_t count_aligned) return err; } +#define string_size(str) \ + (PERF_ALIGN((strlen(str) + 1), NAME_ALIGN) + sizeof(u32)) + static int do_write_string(int fd, const char *str) { u32 len, olen; @@ -135,37 +135,6 @@ static char *do_read_string(int fd, struct perf_header *ph) return NULL; } -int -perf_header__set_cmdline(int argc, const char **argv) -{ - int i; - - /* - * If header_argv has already been set, do not override it. - * This allows a command to set the cmdline, parse args and - * then call another builtin function that implements a - * command -- e.g, cmd_kvm calling cmd_record. - */ - if (header_argv) - return 0; - - header_argc = (u32)argc; - - /* do not include NULL termination */ - header_argv = calloc(argc, sizeof(char *)); - if (!header_argv) - return -ENOMEM; - - /* - * must copy argv contents because it gets moved - * around during option parsing - */ - for (i = 0; i < argc ; i++) - header_argv[i] = argv[i]; - - return 0; -} - static int write_tracing_data(int fd, struct perf_header *h __maybe_unused, struct perf_evlist *evlist) { @@ -402,8 +371,8 @@ static int write_cmdline(int fd, struct perf_header *h __maybe_unused, { char buf[MAXPATHLEN]; char proc[32]; - u32 i, n; - int ret; + u32 n; + int i, ret; /* * actual atual path to perf binary @@ -417,7 +386,7 @@ static int write_cmdline(int fd, struct perf_header *h __maybe_unused, buf[ret] = '\0'; /* account for binary path */ - n = header_argc + 1; + n = perf_env.nr_cmdline + 1; ret = do_write(fd, &n, sizeof(n)); if (ret < 0) @@ -427,8 +396,8 @@ static int write_cmdline(int fd, struct perf_header *h __maybe_unused, if (ret < 0) return ret; - for (i = 0 ; i < header_argc; i++) { - ret = do_write_string(fd, header_argv[i]); + for (i = 0 ; i < perf_env.nr_cmdline; i++) { + ret = do_write_string(fd, perf_env.cmdline_argv[i]); if (ret < 0) return ret; } @@ -441,6 +410,7 @@ static int write_cmdline(int fd, struct perf_header *h __maybe_unused, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list" struct cpu_topo { + u32 cpu_nr; u32 core_sib; u32 thread_sib; char **core_siblings; @@ -551,7 +521,7 @@ static struct cpu_topo *build_cpu_topology(void) return NULL; tp = addr; - + tp->cpu_nr = nr; addr += sizeof(*tp); tp->core_siblings = addr; addr += sz; @@ -574,7 +544,7 @@ static int write_cpu_topology(int fd, struct perf_header *h __maybe_unused, { struct cpu_topo *tp; u32 i; - int ret; + int ret, j; tp = build_cpu_topology(); if (!tp) @@ -598,6 +568,21 @@ static int write_cpu_topology(int fd, struct perf_header *h __maybe_unused, if (ret < 0) break; } + + ret = perf_env__read_cpu_topology_map(&perf_env); + if (ret < 0) + goto done; + + for (j = 0; j < perf_env.nr_cpus_avail; j++) { + ret = do_write(fd, &perf_env.cpu[j].core_id, + sizeof(perf_env.cpu[j].core_id)); + if (ret < 0) + return ret; + ret = do_write(fd, &perf_env.cpu[j].socket_id, + sizeof(perf_env.cpu[j].socket_id)); + if (ret < 0) + return ret; + } done: free_cpu_topo(tp); return ret; @@ -938,6 +923,7 @@ static void print_cpu_topology(struct perf_header *ph, int fd __maybe_unused, { int nr, i; char *str; + int cpu_nr = ph->env.nr_cpus_online; nr = ph->env.nr_sibling_cores; str = ph->env.sibling_cores; @@ -954,6 +940,13 @@ static void print_cpu_topology(struct perf_header *ph, int fd __maybe_unused, fprintf(fp, "# sibling threads : %s\n", str); str += strlen(str) + 1; } + + if (ph->env.cpu != NULL) { + for (i = 0; i < cpu_nr; i++) + fprintf(fp, "# CPU %d: Core ID %d, Socket ID %d\n", i, + ph->env.cpu[i].core_id, ph->env.cpu[i].socket_id); + } else + fprintf(fp, "# Core ID and Socket ID information is not available\n"); } static void free_event_desc(struct perf_evsel *events) @@ -1582,7 +1575,7 @@ error: return -1; } -static int process_cpu_topology(struct perf_file_section *section __maybe_unused, +static int process_cpu_topology(struct perf_file_section *section, struct perf_header *ph, int fd, void *data __maybe_unused) { @@ -1590,15 +1583,22 @@ static int process_cpu_topology(struct perf_file_section *section __maybe_unused u32 nr, i; char *str; struct strbuf sb; + int cpu_nr = ph->env.nr_cpus_online; + u64 size = 0; + + ph->env.cpu = calloc(cpu_nr, sizeof(*ph->env.cpu)); + if (!ph->env.cpu) + return -1; ret = readn(fd, &nr, sizeof(nr)); if (ret != sizeof(nr)) - return -1; + goto free_cpu; if (ph->needs_swap) nr = bswap_32(nr); ph->env.nr_sibling_cores = nr; + size += sizeof(u32); strbuf_init(&sb, 128); for (i = 0; i < nr; i++) { @@ -1608,6 +1608,7 @@ static int process_cpu_topology(struct perf_file_section *section __maybe_unused /* include a NULL character at the end */ strbuf_add(&sb, str, strlen(str) + 1); + size += string_size(str); free(str); } ph->env.sibling_cores = strbuf_detach(&sb, NULL); @@ -1620,6 +1621,7 @@ static int process_cpu_topology(struct perf_file_section *section __maybe_unused nr = bswap_32(nr); ph->env.nr_sibling_threads = nr; + size += sizeof(u32); for (i = 0; i < nr; i++) { str = do_read_string(fd, ph); @@ -1628,13 +1630,57 @@ static int process_cpu_topology(struct perf_file_section *section __maybe_unused /* include a NULL character at the end */ strbuf_add(&sb, str, strlen(str) + 1); + size += string_size(str); free(str); } ph->env.sibling_threads = strbuf_detach(&sb, NULL); + + /* + * The header may be from old perf, + * which doesn't include core id and socket id information. + */ + if (section->size <= size) { + zfree(&ph->env.cpu); + return 0; + } + + for (i = 0; i < (u32)cpu_nr; i++) { + ret = readn(fd, &nr, sizeof(nr)); + if (ret != sizeof(nr)) + goto free_cpu; + + if (ph->needs_swap) + nr = bswap_32(nr); + + if (nr > (u32)cpu_nr) { + pr_debug("core_id number is too big." + "You may need to upgrade the perf tool.\n"); + goto free_cpu; + } + ph->env.cpu[i].core_id = nr; + + ret = readn(fd, &nr, sizeof(nr)); + if (ret != sizeof(nr)) + goto free_cpu; + + if (ph->needs_swap) + nr = bswap_32(nr); + + if (nr > (u32)cpu_nr) { + pr_debug("socket_id number is too big." + "You may need to upgrade the perf tool.\n"); + goto free_cpu; + } + + ph->env.cpu[i].socket_id = nr; + } + return 0; error: strbuf_release(&sb); +free_cpu: + zfree(&ph->env.cpu); return -1; } @@ -1737,6 +1783,9 @@ static int process_pmu_mappings(struct perf_file_section *section __maybe_unused /* include a NULL character at the end */ strbuf_add(&sb, "", 1); + if (!strcmp(name, "msr")) + ph->env.msr_pmu_type = type; + free(name); pmu_num--; } @@ -2515,6 +2564,7 @@ int perf_session__read_header(struct perf_session *session) return -ENOMEM; session->evlist->env = &header->env; + session->machines.host.env = &header->env; if (perf_data_file__is_pipe(file)) return perf_header__read_pipe(session); diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h index 396e4965f..05f27cb6b 100644 --- a/tools/perf/util/header.h +++ b/tools/perf/util/header.h @@ -7,7 +7,7 @@ #include <linux/bitmap.h> #include <linux/types.h> #include "event.h" - +#include "env.h" enum { HEADER_RESERVED = 0, /* always cleared */ @@ -66,31 +66,6 @@ struct perf_header; int perf_file_header__read(struct perf_file_header *header, struct perf_header *ph, int fd); -struct perf_env { - char *hostname; - char *os_release; - char *version; - char *arch; - int nr_cpus_online; - int nr_cpus_avail; - char *cpu_desc; - char *cpuid; - unsigned long long total_mem; - - int nr_cmdline; - int nr_sibling_cores; - int nr_sibling_threads; - int nr_numa_nodes; - int nr_pmu_mappings; - int nr_groups; - char *cmdline; - const char **cmdline_argv; - char *sibling_cores; - char *sibling_threads; - char *numa_nodes; - char *pmu_mappings; -}; - struct perf_header { enum perf_header_version version; bool needs_swap; diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index 08b6cd945..4fd37d670 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -15,6 +15,8 @@ static bool hists__filter_entry_by_thread(struct hists *hists, struct hist_entry *he); static bool hists__filter_entry_by_symbol(struct hists *hists, struct hist_entry *he); +static bool hists__filter_entry_by_socket(struct hists *hists, + struct hist_entry *he); u16 hists__col_len(struct hists *hists, enum hist_column col) { @@ -130,6 +132,18 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h) hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL, symlen); } + + if (h->mem_info->iaddr.sym) { + symlen = (int)h->mem_info->iaddr.sym->namelen + 4 + + unresolved_col_width + 2; + hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL, + symlen); + } else { + symlen = unresolved_col_width + 4 + 2; + hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL, + symlen); + } + if (h->mem_info->daddr.map) { symlen = dso__name_len(h->mem_info->daddr.map->dso); hists__new_col_len(hists, HISTC_MEM_DADDR_DSO, @@ -141,9 +155,12 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h) } else { symlen = unresolved_col_width + 4 + 2; hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL, symlen); + hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL, symlen); hists__set_unres_dso_col_len(hists, HISTC_MEM_DADDR_DSO); } + hists__new_col_len(hists, HISTC_CPU, 3); + hists__new_col_len(hists, HISTC_SOCKET, 6); hists__new_col_len(hists, HISTC_MEM_LOCKED, 6); hists__new_col_len(hists, HISTC_MEM_TLB, 22); hists__new_col_len(hists, HISTC_MEM_SNOOP, 12); @@ -452,6 +469,7 @@ struct hist_entry *__hists__add_entry(struct hists *hists, .map = al->map, .sym = al->sym, }, + .socket = al->socket, .cpu = al->cpu, .cpumode = al->cpumode, .ip = al->addr, @@ -690,7 +708,7 @@ iter_finish_normal_entry(struct hist_entry_iter *iter, } static int -iter_prepare_cumulative_entry(struct hist_entry_iter *iter __maybe_unused, +iter_prepare_cumulative_entry(struct hist_entry_iter *iter, struct addr_location *al __maybe_unused) { struct hist_entry **he_cache; @@ -702,7 +720,7 @@ iter_prepare_cumulative_entry(struct hist_entry_iter *iter __maybe_unused, * cumulated only one time to prevent entries more than 100% * overhead. */ - he_cache = malloc(sizeof(*he_cache) * (PERF_MAX_STACK_DEPTH + 1)); + he_cache = malloc(sizeof(*he_cache) * (iter->max_stack + 1)); if (he_cache == NULL) return -ENOMEM; @@ -863,6 +881,8 @@ int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al, if (err) return err; + iter->max_stack = max_stack_depth; + err = iter->ops->prepare_entry(iter, al); if (err) goto out; @@ -1024,6 +1044,7 @@ static void hists__apply_filters(struct hists *hists, struct hist_entry *he) hists__filter_entry_by_dso(hists, he); hists__filter_entry_by_thread(hists, he); hists__filter_entry_by_symbol(hists, he); + hists__filter_entry_by_socket(hists, he); } void hists__collapse_resort(struct hists *hists, struct ui_progress *prog) @@ -1143,7 +1164,7 @@ void hists__output_resort(struct hists *hists, struct ui_progress *prog) struct perf_evsel *evsel = hists_to_evsel(hists); bool use_callchain; - if (evsel && !symbol_conf.show_ref_callgraph) + if (evsel && symbol_conf.use_callchain && !symbol_conf.show_ref_callgraph) use_callchain = evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN; else use_callchain = symbol_conf.use_callchain; @@ -1292,6 +1313,37 @@ void hists__filter_by_symbol(struct hists *hists) } } +static bool hists__filter_entry_by_socket(struct hists *hists, + struct hist_entry *he) +{ + if ((hists->socket_filter > -1) && + (he->socket != hists->socket_filter)) { + he->filtered |= (1 << HIST_FILTER__SOCKET); + return true; + } + + return false; +} + +void hists__filter_by_socket(struct hists *hists) +{ + struct rb_node *nd; + + hists->stats.nr_non_filtered_samples = 0; + + hists__reset_filter_stats(hists); + hists__reset_col_len(hists); + + for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) { + struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); + + if (hists__filter_entry_by_socket(hists, h)) + continue; + + hists__remove_entry_filter(hists, h, HIST_FILTER__SOCKET); + } +} + void events_stats__inc(struct events_stats *stats, u32 type) { ++stats->nr_events[0]; @@ -1517,6 +1569,7 @@ static int hists_evsel__init(struct perf_evsel *evsel) hists->entries_collapsed = RB_ROOT; hists->entries = RB_ROOT; pthread_mutex_init(&hists->lock, NULL); + hists->socket_filter = -1; return 0; } diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h index de6d58e7f..a48a2078d 100644 --- a/tools/perf/util/hist.h +++ b/tools/perf/util/hist.h @@ -20,6 +20,7 @@ enum hist_filter { HIST_FILTER__SYMBOL, HIST_FILTER__GUEST, HIST_FILTER__HOST, + HIST_FILTER__SOCKET, }; enum hist_column { @@ -29,6 +30,7 @@ enum hist_column { HISTC_COMM, HISTC_PARENT, HISTC_CPU, + HISTC_SOCKET, HISTC_SRCLINE, HISTC_SRCFILE, HISTC_MISPREDICT, @@ -47,6 +49,7 @@ enum hist_column { HISTC_MEM_LVL, HISTC_MEM_SNOOP, HISTC_MEM_DCACHELINE, + HISTC_MEM_IADDR_SYMBOL, HISTC_TRANSACTION, HISTC_CYCLES, HISTC_NR_COLS, /* Last entry */ @@ -70,6 +73,7 @@ struct hists { struct events_stats stats; u64 event_stream; u16 col_len[HISTC_NR_COLS]; + int socket_filter; }; struct hist_entry_iter; @@ -87,6 +91,7 @@ struct hist_entry_iter { int curr; bool hide_unresolved; + int max_stack; struct perf_evsel *evsel; struct perf_sample *sample; @@ -144,11 +149,12 @@ size_t perf_evlist__fprintf_nr_events(struct perf_evlist *evlist, FILE *fp); void hists__filter_by_dso(struct hists *hists); void hists__filter_by_thread(struct hists *hists); void hists__filter_by_symbol(struct hists *hists); +void hists__filter_by_socket(struct hists *hists); static inline bool hists__has_filter(struct hists *hists) { return hists->thread_filter || hists->dso_filter || - hists->symbol_filter_str; + hists->symbol_filter_str || (hists->socket_filter > -1); } u16 hists__col_len(struct hists *hists, enum hist_column col); diff --git a/tools/perf/util/include/dwarf-regs.h b/tools/perf/util/include/dwarf-regs.h index 8f149655f..07c644ed6 100644 --- a/tools/perf/util/include/dwarf-regs.h +++ b/tools/perf/util/include/dwarf-regs.h @@ -5,4 +5,12 @@ const char *get_arch_regstr(unsigned int n); #endif +#ifdef HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET +/* + * Arch should support fetching the offset of a register in pt_regs + * by its name. See kernel's regs_query_register_offset in + * arch/xxx/kernel/ptrace.c. + */ +int regs_query_register_offset(const char *name); +#endif #endif diff --git a/tools/perf/util/intel-pt-decoder/Build b/tools/perf/util/intel-pt-decoder/Build index 2386322ec..0611d619a 100644 --- a/tools/perf/util/intel-pt-decoder/Build +++ b/tools/perf/util/intel-pt-decoder/Build @@ -7,6 +7,17 @@ $(OUTPUT)util/intel-pt-decoder/inat-tables.c: $(inat_tables_script) $(inat_table $(call rule_mkdir) @$(call echo-cmd,gen)$(AWK) -f $(inat_tables_script) $(inat_tables_maps) > $@ || rm -f $@ -$(OUTPUT)util/intel-pt-decoder/intel-pt-insn-decoder.o: util/intel-pt-decoder/inat.c $(OUTPUT)util/intel-pt-decoder/inat-tables.c +$(OUTPUT)util/intel-pt-decoder/intel-pt-insn-decoder.o: util/intel-pt-decoder/intel-pt-insn-decoder.c util/intel-pt-decoder/inat.c $(OUTPUT)util/intel-pt-decoder/inat-tables.c + @(test -d ../../kernel -a -d ../../tools -a -d ../perf && (( \ + diff -B -I'^#include' util/intel-pt-decoder/insn.c ../../arch/x86/lib/insn.c >/dev/null && \ + diff -B -I'^#include' util/intel-pt-decoder/inat.c ../../arch/x86/lib/inat.c >/dev/null && \ + diff -B util/intel-pt-decoder/x86-opcode-map.txt ../../arch/x86/lib/x86-opcode-map.txt >/dev/null && \ + diff -B util/intel-pt-decoder/gen-insn-attr-x86.awk ../../arch/x86/tools/gen-insn-attr-x86.awk >/dev/null && \ + diff -B -I'^#include' util/intel-pt-decoder/insn.h ../../arch/x86/include/asm/insn.h >/dev/null && \ + diff -B -I'^#include' util/intel-pt-decoder/inat.h ../../arch/x86/include/asm/inat.h >/dev/null && \ + diff -B -I'^#include' util/intel-pt-decoder/inat_types.h ../../arch/x86/include/asm/inat_types.h >/dev/null) \ + || echo "Warning: Intel PT: x86 instruction decoder differs from kernel" >&2 )) || true + $(call rule_mkdir) + $(call if_changed_dep,cc_o_c) CFLAGS_intel-pt-insn-decoder.o += -I$(OUTPUT)util/intel-pt-decoder -Wno-override-init diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index 22ba50224..9409d014b 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -650,7 +650,7 @@ static int intel_pt_calc_cyc_cb(struct intel_pt_pkt_info *pkt_info) if (data->from_mtc && timestamp < data->timestamp && data->timestamp - timestamp < decoder->tsc_slip) return 1; - while (timestamp < data->timestamp) + if (timestamp < data->timestamp) timestamp += (1ULL << 56); if (pkt_info->last_packet_type != INTEL_PT_CYC) { if (data->from_mtc) @@ -1191,7 +1191,7 @@ static void intel_pt_calc_tsc_timestamp(struct intel_pt_decoder *decoder) timestamp); timestamp = decoder->timestamp; } - while (timestamp < decoder->timestamp) { + if (timestamp < decoder->timestamp) { intel_pt_log_to("Wraparound timestamp", timestamp); timestamp += (1ULL << 56); decoder->tsc_timestamp = timestamp; diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-log.c b/tools/perf/util/intel-pt-decoder/intel-pt-log.c index d09c7d9f9..319bef33a 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-log.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-log.c @@ -29,18 +29,18 @@ static FILE *f; static char log_name[MAX_LOG_NAME]; -static bool enable_logging; +bool intel_pt_enable_logging; void intel_pt_log_enable(void) { - enable_logging = true; + intel_pt_enable_logging = true; } void intel_pt_log_disable(void) { if (f) fflush(f); - enable_logging = false; + intel_pt_enable_logging = false; } void intel_pt_log_set_name(const char *name) @@ -80,7 +80,7 @@ static void intel_pt_print_no_data(uint64_t pos, int indent) static int intel_pt_log_open(void) { - if (!enable_logging) + if (!intel_pt_enable_logging) return -1; if (f) @@ -91,15 +91,15 @@ static int intel_pt_log_open(void) f = fopen(log_name, "w+"); if (!f) { - enable_logging = false; + intel_pt_enable_logging = false; return -1; } return 0; } -void intel_pt_log_packet(const struct intel_pt_pkt *packet, int pkt_len, - uint64_t pos, const unsigned char *buf) +void __intel_pt_log_packet(const struct intel_pt_pkt *packet, int pkt_len, + uint64_t pos, const unsigned char *buf) { char desc[INTEL_PT_PKT_DESC_MAX]; @@ -111,7 +111,7 @@ void intel_pt_log_packet(const struct intel_pt_pkt *packet, int pkt_len, fprintf(f, "%s\n", desc); } -void intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip) +void __intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip) { char desc[INTEL_PT_INSN_DESC_MAX]; size_t len = intel_pt_insn->length; @@ -128,7 +128,8 @@ void intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip) fprintf(f, "Bad instruction!\n"); } -void intel_pt_log_insn_no_data(struct intel_pt_insn *intel_pt_insn, uint64_t ip) +void __intel_pt_log_insn_no_data(struct intel_pt_insn *intel_pt_insn, + uint64_t ip) { char desc[INTEL_PT_INSN_DESC_MAX]; @@ -142,7 +143,7 @@ void intel_pt_log_insn_no_data(struct intel_pt_insn *intel_pt_insn, uint64_t ip) fprintf(f, "Bad instruction!\n"); } -void intel_pt_log(const char *fmt, ...) +void __intel_pt_log(const char *fmt, ...) { va_list args; diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-log.h b/tools/perf/util/intel-pt-decoder/intel-pt-log.h index db3942f83..debe751dc 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-log.h +++ b/tools/perf/util/intel-pt-decoder/intel-pt-log.h @@ -25,20 +25,46 @@ void intel_pt_log_enable(void); void intel_pt_log_disable(void); void intel_pt_log_set_name(const char *name); -void intel_pt_log_packet(const struct intel_pt_pkt *packet, int pkt_len, - uint64_t pos, const unsigned char *buf); +void __intel_pt_log_packet(const struct intel_pt_pkt *packet, int pkt_len, + uint64_t pos, const unsigned char *buf); struct intel_pt_insn; -void intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip); -void intel_pt_log_insn_no_data(struct intel_pt_insn *intel_pt_insn, - uint64_t ip); +void __intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip); +void __intel_pt_log_insn_no_data(struct intel_pt_insn *intel_pt_insn, + uint64_t ip); __attribute__((format(printf, 1, 2))) -void intel_pt_log(const char *fmt, ...); +void __intel_pt_log(const char *fmt, ...); + +#define intel_pt_log(fmt, ...) \ + do { \ + if (intel_pt_enable_logging) \ + __intel_pt_log(fmt, ##__VA_ARGS__); \ + } while (0) + +#define intel_pt_log_packet(arg, ...) \ + do { \ + if (intel_pt_enable_logging) \ + __intel_pt_log_packet(arg, ##__VA_ARGS__); \ + } while (0) + +#define intel_pt_log_insn(arg, ...) \ + do { \ + if (intel_pt_enable_logging) \ + __intel_pt_log_insn(arg, ##__VA_ARGS__); \ + } while (0) + +#define intel_pt_log_insn_no_data(arg, ...) \ + do { \ + if (intel_pt_enable_logging) \ + __intel_pt_log_insn_no_data(arg, ##__VA_ARGS__); \ + } while (0) #define x64_fmt "0x%" PRIx64 +extern bool intel_pt_enable_logging; + static inline void intel_pt_log_at(const char *msg, uint64_t u) { intel_pt_log("%s at " x64_fmt "\n", msg, u); diff --git a/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt b/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt index 816488c0b..d388de72e 100644 --- a/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt +++ b/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt @@ -353,8 +353,12 @@ AVXcode: 1 17: vmovhps Mq,Vq (v1) | vmovhpd Mq,Vq (66),(v1) 18: Grp16 (1A) 19: -1a: BNDCL Ev,Gv | BNDCU Ev,Gv | BNDMOV Gv,Ev | BNDLDX Gv,Ev,Gv -1b: BNDCN Ev,Gv | BNDMOV Ev,Gv | BNDMK Gv,Ev | BNDSTX Ev,GV,Gv +# Intel SDM opcode map does not list MPX instructions. For now using Gv for +# bnd registers and Ev for everything else is OK because the instruction +# decoder does not use the information except as an indication that there is +# a ModR/M byte. +1a: BNDCL Gv,Ev (F3) | BNDCU Gv,Ev (F2) | BNDMOV Gv,Ev (66) | BNDLDX Gv,Ev +1b: BNDCN Gv,Ev (F2) | BNDMOV Ev,Gv (66) | BNDMK Gv,Ev (F3) | BNDSTX Ev,Gv 1c: 1d: 1e: @@ -732,6 +736,12 @@ bd: vfnmadd231ss/d Vx,Hx,Wx (66),(v),(v1) be: vfnmsub231ps/d Vx,Hx,Wx (66),(v) bf: vfnmsub231ss/d Vx,Hx,Wx (66),(v),(v1) # 0x0f 0x38 0xc0-0xff +c8: sha1nexte Vdq,Wdq +c9: sha1msg1 Vdq,Wdq +ca: sha1msg2 Vdq,Wdq +cb: sha256rnds2 Vdq,Wdq +cc: sha256msg1 Vdq,Wdq +cd: sha256msg2 Vdq,Wdq db: VAESIMC Vdq,Wdq (66),(v1) dc: VAESENC Vdq,Hdq,Wdq (66),(v1) dd: VAESENCLAST Vdq,Hdq,Wdq (66),(v1) @@ -790,6 +800,7 @@ AVXcode: 3 61: vpcmpestri Vdq,Wdq,Ib (66),(v1) 62: vpcmpistrm Vdq,Wdq,Ib (66),(v1) 63: vpcmpistri Vdq,Wdq,Ib (66),(v1) +cc: sha1rnds4 Vdq,Wdq,Ib df: VAESKEYGEN Vdq,Wdq,Ib (66),(v1) f0: RORX Gy,Ey,Ib (F2),(v) EndTable @@ -874,7 +885,7 @@ GrpTable: Grp7 2: LGDT Ms | XGETBV (000),(11B) | XSETBV (001),(11B) | VMFUNC (100),(11B) | XEND (101)(11B) | XTEST (110)(11B) 3: LIDT Ms 4: SMSW Mw/Rv -5: +5: rdpkru (110),(11B) | wrpkru (111),(11B) 6: LMSW Ew 7: INVLPG Mb | SWAPGS (o64),(000),(11B) | RDTSCP (001),(11B) EndTable @@ -888,6 +899,9 @@ EndTable GrpTable: Grp9 1: CMPXCHG8B/16B Mq/Mdq +3: xrstors +4: xsavec +5: xsaves 6: VMPTRLD Mq | VMCLEAR Mq (66) | VMXON Mq (F3) | RDRAND Rv (11B) 7: VMPTRST Mq | VMPTRST Mq (F3) | RDSEED Rv (11B) EndTable @@ -932,8 +946,8 @@ GrpTable: Grp15 3: vstmxcsr Md (v1) | WRGSBASE Ry (F3),(11B) 4: XSAVE 5: XRSTOR | lfence (11B) -6: XSAVEOPT | mfence (11B) -7: clflush | sfence (11B) +6: XSAVEOPT | clwb (66) | mfence (11B) +7: clflush | clflushopt (66) | sfence (11B) | pcommit (66),(11B) EndTable GrpTable: Grp16 diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index 535d86f8e..97f963a3d 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -22,6 +22,7 @@ #include "../perf.h" #include "session.h" #include "machine.h" +#include "sort.h" #include "tool.h" #include "event.h" #include "evlist.h" @@ -63,6 +64,7 @@ struct intel_pt { bool data_queued; bool est_tsc; bool sync_switch; + bool mispred_all; int have_sched_switch; u32 pmu_type; u64 kernel_start; @@ -115,6 +117,9 @@ struct intel_pt_queue { void *decoder; const struct intel_pt_state *state; struct ip_callchain *chain; + struct branch_stack *last_branch; + struct branch_stack *last_branch_rb; + size_t last_branch_pos; union perf_event *event_buf; bool on_heap; bool stop; @@ -675,6 +680,19 @@ static struct intel_pt_queue *intel_pt_alloc_queue(struct intel_pt *pt, goto out_free; } + if (pt->synth_opts.last_branch) { + size_t sz = sizeof(struct branch_stack); + + sz += pt->synth_opts.last_branch_sz * + sizeof(struct branch_entry); + ptq->last_branch = zalloc(sz); + if (!ptq->last_branch) + goto out_free; + ptq->last_branch_rb = zalloc(sz); + if (!ptq->last_branch_rb) + goto out_free; + } + ptq->event_buf = malloc(PERF_SAMPLE_MAX_SIZE); if (!ptq->event_buf) goto out_free; @@ -720,7 +738,7 @@ static struct intel_pt_queue *intel_pt_alloc_queue(struct intel_pt *pt, if (!params.period) { params.period_type = INTEL_PT_PERIOD_INSTRUCTIONS; - params.period = 1000; + params.period = 1; } } @@ -732,6 +750,8 @@ static struct intel_pt_queue *intel_pt_alloc_queue(struct intel_pt *pt, out_free: zfree(&ptq->event_buf); + zfree(&ptq->last_branch); + zfree(&ptq->last_branch_rb); zfree(&ptq->chain); free(ptq); return NULL; @@ -746,6 +766,8 @@ static void intel_pt_free_queue(void *priv) thread__zput(ptq->thread); intel_pt_decoder_free(ptq->decoder); zfree(&ptq->event_buf); + zfree(&ptq->last_branch); + zfree(&ptq->last_branch_rb); zfree(&ptq->chain); free(ptq); } @@ -876,6 +898,58 @@ static int intel_pt_setup_queues(struct intel_pt *pt) return 0; } +static inline void intel_pt_copy_last_branch_rb(struct intel_pt_queue *ptq) +{ + struct branch_stack *bs_src = ptq->last_branch_rb; + struct branch_stack *bs_dst = ptq->last_branch; + size_t nr = 0; + + bs_dst->nr = bs_src->nr; + + if (!bs_src->nr) + return; + + nr = ptq->pt->synth_opts.last_branch_sz - ptq->last_branch_pos; + memcpy(&bs_dst->entries[0], + &bs_src->entries[ptq->last_branch_pos], + sizeof(struct branch_entry) * nr); + + if (bs_src->nr >= ptq->pt->synth_opts.last_branch_sz) { + memcpy(&bs_dst->entries[nr], + &bs_src->entries[0], + sizeof(struct branch_entry) * ptq->last_branch_pos); + } +} + +static inline void intel_pt_reset_last_branch_rb(struct intel_pt_queue *ptq) +{ + ptq->last_branch_pos = 0; + ptq->last_branch_rb->nr = 0; +} + +static void intel_pt_update_last_branch_rb(struct intel_pt_queue *ptq) +{ + const struct intel_pt_state *state = ptq->state; + struct branch_stack *bs = ptq->last_branch_rb; + struct branch_entry *be; + + if (!ptq->last_branch_pos) + ptq->last_branch_pos = ptq->pt->synth_opts.last_branch_sz; + + ptq->last_branch_pos -= 1; + + be = &bs->entries[ptq->last_branch_pos]; + be->from = state->from_ip; + be->to = state->to_ip; + be->flags.abort = !!(state->flags & INTEL_PT_ABORT_TX); + be->flags.in_tx = !!(state->flags & INTEL_PT_IN_TX); + /* No support for mispredict */ + be->flags.mispred = ptq->pt->mispred_all; + + if (bs->nr < ptq->pt->synth_opts.last_branch_sz) + bs->nr += 1; +} + static int intel_pt_inject_event(union perf_event *event, struct perf_sample *sample, u64 type, bool swapped) @@ -890,6 +964,13 @@ static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq) struct intel_pt *pt = ptq->pt; union perf_event *event = ptq->event_buf; struct perf_sample sample = { .ip = 0, }; + struct dummy_branch_stack { + u64 nr; + struct branch_entry entries; + } dummy_bs; + + if (pt->branches_filter && !(pt->branches_filter & ptq->flags)) + return 0; event->sample.header.type = PERF_RECORD_SAMPLE; event->sample.header.misc = PERF_RECORD_MISC_USER; @@ -909,8 +990,20 @@ static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq) sample.flags = ptq->flags; sample.insn_len = ptq->insn_len; - if (pt->branches_filter && !(pt->branches_filter & ptq->flags)) - return 0; + /* + * perf report cannot handle events without a branch stack when using + * SORT_MODE__BRANCH so make a dummy one. + */ + if (pt->synth_opts.last_branch && sort__mode == SORT_MODE__BRANCH) { + dummy_bs = (struct dummy_branch_stack){ + .nr = 1, + .entries = { + .from = sample.ip, + .to = sample.addr, + }, + }; + sample.branch_stack = (struct branch_stack *)&dummy_bs; + } if (pt->synth_opts.inject) { ret = intel_pt_inject_event(event, &sample, @@ -961,6 +1054,11 @@ static int intel_pt_synth_instruction_sample(struct intel_pt_queue *ptq) sample.callchain = ptq->chain; } + if (pt->synth_opts.last_branch) { + intel_pt_copy_last_branch_rb(ptq); + sample.branch_stack = ptq->last_branch; + } + if (pt->synth_opts.inject) { ret = intel_pt_inject_event(event, &sample, pt->instructions_sample_type, @@ -974,6 +1072,9 @@ static int intel_pt_synth_instruction_sample(struct intel_pt_queue *ptq) pr_err("Intel Processor Trace: failed to deliver instruction event, error %d\n", ret); + if (pt->synth_opts.last_branch) + intel_pt_reset_last_branch_rb(ptq); + return ret; } @@ -1008,6 +1109,11 @@ static int intel_pt_synth_transaction_sample(struct intel_pt_queue *ptq) sample.callchain = ptq->chain; } + if (pt->synth_opts.last_branch) { + intel_pt_copy_last_branch_rb(ptq); + sample.branch_stack = ptq->last_branch; + } + if (pt->synth_opts.inject) { ret = intel_pt_inject_event(event, &sample, pt->transactions_sample_type, @@ -1021,6 +1127,9 @@ static int intel_pt_synth_transaction_sample(struct intel_pt_queue *ptq) pr_err("Intel Processor Trace: failed to deliver transaction event, error %d\n", ret); + if (pt->synth_opts.callchain) + intel_pt_reset_last_branch_rb(ptq); + return ret; } @@ -1116,6 +1225,9 @@ static int intel_pt_sample(struct intel_pt_queue *ptq) return err; } + if (pt->synth_opts.last_branch) + intel_pt_update_last_branch_rb(ptq); + if (!pt->sync_switch) return 0; @@ -1145,16 +1257,18 @@ static int intel_pt_sample(struct intel_pt_queue *ptq) return 0; } -static u64 intel_pt_switch_ip(struct machine *machine, u64 *ptss_ip) +static u64 intel_pt_switch_ip(struct intel_pt *pt, u64 *ptss_ip) { + struct machine *machine = pt->machine; struct map *map; struct symbol *sym, *start; u64 ip, switch_ip = 0; + const char *ptss; if (ptss_ip) *ptss_ip = 0; - map = machine__kernel_map(machine, MAP__FUNCTION); + map = machine__kernel_map(machine); if (!map) return 0; @@ -1177,8 +1291,13 @@ static u64 intel_pt_switch_ip(struct machine *machine, u64 *ptss_ip) if (!switch_ip || !ptss_ip) return 0; + if (pt->have_sched_switch == 1) + ptss = "perf_trace_sched_switch"; + else + ptss = "__perf_event_task_sched_out"; + for (sym = start; sym; sym = dso__next_symbol(sym)) { - if (!strcmp(sym->name, "perf_trace_sched_switch")) { + if (!strcmp(sym->name, ptss)) { ip = map->unmap_ip(map, sym->start); if (ip >= map->start && ip < map->end) { *ptss_ip = ip; @@ -1198,11 +1317,11 @@ static int intel_pt_run_decoder(struct intel_pt_queue *ptq, u64 *timestamp) if (!pt->kernel_start) { pt->kernel_start = machine__kernel_start(pt->machine); - if (pt->per_cpu_mmaps && pt->have_sched_switch && + if (pt->per_cpu_mmaps && + (pt->have_sched_switch == 1 || pt->have_sched_switch == 3) && !pt->timeless_decoding && intel_pt_tracing_kernel(pt) && !pt->sampling_mode) { - pt->switch_ip = intel_pt_switch_ip(pt->machine, - &pt->ptss_ip); + pt->switch_ip = intel_pt_switch_ip(pt, &pt->ptss_ip); if (pt->switch_ip) { intel_pt_log("switch_ip: %"PRIx64" ptss_ip: %"PRIx64"\n", pt->switch_ip, pt->ptss_ip); @@ -1387,31 +1506,18 @@ static struct intel_pt_queue *intel_pt_cpu_to_ptq(struct intel_pt *pt, int cpu) return NULL; } -static int intel_pt_process_switch(struct intel_pt *pt, - struct perf_sample *sample) +static int intel_pt_sync_switch(struct intel_pt *pt, int cpu, pid_t tid, + u64 timestamp) { struct intel_pt_queue *ptq; - struct perf_evsel *evsel; - pid_t tid; - int cpu, err; - - evsel = perf_evlist__id2evsel(pt->session->evlist, sample->id); - if (evsel != pt->switch_evsel) - return 0; - - tid = perf_evsel__intval(evsel, sample, "next_pid"); - cpu = sample->cpu; - - intel_pt_log("sched_switch: cpu %d tid %d time %"PRIu64" tsc %#"PRIx64"\n", - cpu, tid, sample->time, perf_time_to_tsc(sample->time, - &pt->tc)); + int err; if (!pt->sync_switch) - goto out; + return 1; ptq = intel_pt_cpu_to_ptq(pt, cpu); if (!ptq) - goto out; + return 1; switch (ptq->switch_state) { case INTEL_PT_SS_NOT_TRACING: @@ -1424,7 +1530,7 @@ static int intel_pt_process_switch(struct intel_pt *pt, return 0; case INTEL_PT_SS_EXPECTING_SWITCH_EVENT: if (!ptq->on_heap) { - ptq->timestamp = perf_time_to_tsc(sample->time, + ptq->timestamp = perf_time_to_tsc(timestamp, &pt->tc); err = auxtrace_heap__add(&pt->heap, ptq->queue_nr, ptq->timestamp); @@ -1441,10 +1547,76 @@ static int intel_pt_process_switch(struct intel_pt *pt, default: break; } -out: + + return 1; +} + +static int intel_pt_process_switch(struct intel_pt *pt, + struct perf_sample *sample) +{ + struct perf_evsel *evsel; + pid_t tid; + int cpu, ret; + + evsel = perf_evlist__id2evsel(pt->session->evlist, sample->id); + if (evsel != pt->switch_evsel) + return 0; + + tid = perf_evsel__intval(evsel, sample, "next_pid"); + cpu = sample->cpu; + + intel_pt_log("sched_switch: cpu %d tid %d time %"PRIu64" tsc %#"PRIx64"\n", + cpu, tid, sample->time, perf_time_to_tsc(sample->time, + &pt->tc)); + + ret = intel_pt_sync_switch(pt, cpu, tid, sample->time); + if (ret <= 0) + return ret; + return machine__set_current_tid(pt->machine, cpu, -1, tid); } +static int intel_pt_context_switch(struct intel_pt *pt, union perf_event *event, + struct perf_sample *sample) +{ + bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT; + pid_t pid, tid; + int cpu, ret; + + cpu = sample->cpu; + + if (pt->have_sched_switch == 3) { + if (!out) + return 0; + if (event->header.type != PERF_RECORD_SWITCH_CPU_WIDE) { + pr_err("Expecting CPU-wide context switch event\n"); + return -EINVAL; + } + pid = event->context_switch.next_prev_pid; + tid = event->context_switch.next_prev_tid; + } else { + if (out) + return 0; + pid = sample->pid; + tid = sample->tid; + } + + if (tid == -1) { + pr_err("context_switch event has no tid\n"); + return -EINVAL; + } + + intel_pt_log("context_switch: cpu %d pid %d tid %d time %"PRIu64" tsc %#"PRIx64"\n", + cpu, pid, tid, sample->time, perf_time_to_tsc(sample->time, + &pt->tc)); + + ret = intel_pt_sync_switch(pt, cpu, tid, sample->time); + if (ret <= 0) + return ret; + + return machine__set_current_tid(pt->machine, cpu, pid, tid); +} + static int intel_pt_process_itrace_start(struct intel_pt *pt, union perf_event *event, struct perf_sample *sample) @@ -1515,6 +1687,9 @@ static int intel_pt_process_event(struct perf_session *session, err = intel_pt_process_switch(pt, sample); else if (event->header.type == PERF_RECORD_ITRACE_START) err = intel_pt_process_itrace_start(pt, event, sample); + else if (event->header.type == PERF_RECORD_SWITCH || + event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) + err = intel_pt_context_switch(pt, event, sample); intel_pt_log("event %s (%u): cpu %d time %"PRIu64" tsc %#"PRIx64"\n", perf_event__name(event->header.type), event->header.type, @@ -1700,6 +1875,8 @@ static int intel_pt_synth_events(struct intel_pt *pt, pt->instructions_sample_period = attr.sample_period; if (pt->synth_opts.callchain) attr.sample_type |= PERF_SAMPLE_CALLCHAIN; + if (pt->synth_opts.last_branch) + attr.sample_type |= PERF_SAMPLE_BRANCH_STACK; pr_debug("Synthesizing 'instructions' event with id %" PRIu64 " sample type %#" PRIx64 "\n", id, (u64)attr.sample_type); err = intel_pt_synth_event(session, &attr, id); @@ -1719,6 +1896,8 @@ static int intel_pt_synth_events(struct intel_pt *pt, attr.sample_period = 1; if (pt->synth_opts.callchain) attr.sample_type |= PERF_SAMPLE_CALLCHAIN; + if (pt->synth_opts.last_branch) + attr.sample_type |= PERF_SAMPLE_BRANCH_STACK; pr_debug("Synthesizing 'transactions' event with id %" PRIu64 " sample type %#" PRIx64 "\n", id, (u64)attr.sample_type); err = intel_pt_synth_event(session, &attr, id); @@ -1745,6 +1924,7 @@ static int intel_pt_synth_events(struct intel_pt *pt, attr.sample_period = 1; attr.sample_type |= PERF_SAMPLE_ADDR; attr.sample_type &= ~(u64)PERF_SAMPLE_CALLCHAIN; + attr.sample_type &= ~(u64)PERF_SAMPLE_BRANCH_STACK; pr_debug("Synthesizing 'branches' event with id %" PRIu64 " sample type %#" PRIx64 "\n", id, (u64)attr.sample_type); err = intel_pt_synth_event(session, &attr, id); @@ -1777,6 +1957,28 @@ static struct perf_evsel *intel_pt_find_sched_switch(struct perf_evlist *evlist) return NULL; } +static bool intel_pt_find_switch(struct perf_evlist *evlist) +{ + struct perf_evsel *evsel; + + evlist__for_each(evlist, evsel) { + if (evsel->attr.context_switch) + return true; + } + + return false; +} + +static int intel_pt_perf_config(const char *var, const char *value, void *data) +{ + struct intel_pt *pt = data; + + if (!strcmp(var, "intel-pt.mispred-all")) + pt->mispred_all = perf_config_bool(var, value); + + return 0; +} + static const char * const intel_pt_info_fmts[] = { [INTEL_PT_PMU_TYPE] = " PMU Type %"PRId64"\n", [INTEL_PT_TIME_SHIFT] = " Time Shift %"PRIu64"\n", @@ -1821,6 +2023,8 @@ int intel_pt_process_auxtrace_info(union perf_event *event, if (!pt) return -ENOMEM; + perf_config(intel_pt_perf_config, pt); + err = auxtrace_queues__init(&pt->queues); if (err) goto err_free; @@ -1888,6 +2092,10 @@ int intel_pt_process_auxtrace_info(union perf_event *event, pr_err("%s: missing sched_switch event\n", __func__); goto err_delete_thread; } + } else if (pt->have_sched_switch == 2 && + !intel_pt_find_switch(session->evlist)) { + pr_err("%s: missing context_switch attribute flag\n", __func__); + goto err_delete_thread; } if (session->itrace_synth_opts && session->itrace_synth_opts->set) { diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c index 4f6a4780b..00724d496 100644 --- a/tools/perf/util/llvm-utils.c +++ b/tools/perf/util/llvm-utils.c @@ -4,17 +4,18 @@ */ #include <stdio.h> -#include <sys/utsname.h> #include "util.h" #include "debug.h" #include "llvm-utils.h" #include "cache.h" #define CLANG_BPF_CMD_DEFAULT_TEMPLATE \ - "$CLANG_EXEC -D__KERNEL__ $CLANG_OPTIONS " \ - "$KERNEL_INC_OPTIONS -Wno-unused-value " \ - "-Wno-pointer-sign -working-directory " \ - "$WORKING_DIR -c \"$CLANG_SOURCE\" -target bpf -O2 -o -" + "$CLANG_EXEC -D__KERNEL__ -D__NR_CPUS__=$NR_CPUS "\ + "-DLINUX_VERSION_CODE=$LINUX_VERSION_CODE " \ + "$CLANG_OPTIONS $KERNEL_INC_OPTIONS " \ + "-Wno-unused-value -Wno-pointer-sign " \ + "-working-directory $WORKING_DIR " \ + "-c \"$CLANG_SOURCE\" -target bpf -O2 -o -" struct llvm_param llvm_param = { .clang_path = "clang", @@ -214,18 +215,19 @@ static int detect_kbuild_dir(char **kbuild_dir) const char *suffix_dir = ""; char *autoconf_path; - struct utsname utsname; int err; if (!test_dir) { - err = uname(&utsname); - if (err) { - pr_warning("uname failed: %s\n", strerror(errno)); + /* _UTSNAME_LENGTH is 65 */ + char release[128]; + + err = fetch_kernel_version(NULL, release, + sizeof(release)); + if (err) return -EINVAL; - } - test_dir = utsname.release; + test_dir = release; prefix_dir = "/lib/modules/"; suffix_dir = "/build"; } @@ -326,13 +328,15 @@ get_kbuild_opts(char **kbuild_dir, char **kbuild_include_opts) int llvm__compile_bpf(const char *path, void **p_obj_buf, size_t *p_obj_buf_sz) { - int err; - char clang_path[PATH_MAX]; + size_t obj_buf_sz; + void *obj_buf = NULL; + int err, nr_cpus_avail; + unsigned int kernel_version; + char linux_version_code_str[64]; const char *clang_opt = llvm_param.clang_opt; - const char *template = llvm_param.clang_bpf_cmd_template; + char clang_path[PATH_MAX], nr_cpus_avail_str[64]; char *kbuild_dir = NULL, *kbuild_include_opts = NULL; - void *obj_buf = NULL; - size_t obj_buf_sz; + const char *template = llvm_param.clang_bpf_cmd_template; if (!template) template = CLANG_BPF_CMD_DEFAULT_TEMPLATE; @@ -354,6 +358,24 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf, */ get_kbuild_opts(&kbuild_dir, &kbuild_include_opts); + nr_cpus_avail = sysconf(_SC_NPROCESSORS_CONF); + if (nr_cpus_avail <= 0) { + pr_err( +"WARNING:\tunable to get available CPUs in this system: %s\n" +" \tUse 128 instead.\n", strerror(errno)); + nr_cpus_avail = 128; + } + snprintf(nr_cpus_avail_str, sizeof(nr_cpus_avail_str), "%d", + nr_cpus_avail); + + if (fetch_kernel_version(&kernel_version, NULL, 0)) + kernel_version = 0; + + snprintf(linux_version_code_str, sizeof(linux_version_code_str), + "0x%x", kernel_version); + + force_set_env("NR_CPUS", nr_cpus_avail_str); + force_set_env("LINUX_VERSION_CODE", linux_version_code_str); force_set_env("CLANG_EXEC", clang_path); force_set_env("CLANG_OPTIONS", clang_opt); force_set_env("KERNEL_INC_OPTIONS", kbuild_include_opts); diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index 6309f7ceb..8b303ff20 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -35,6 +35,7 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid) machine->last_match = NULL; machine->vdso_info = NULL; + machine->env = NULL; machine->pid = pid; @@ -90,6 +91,7 @@ static void dsos__purge(struct dsos *dsos) list_for_each_entry_safe(pos, n, &dsos->head, node) { RB_CLEAR_NODE(&pos->rb_node); + pos->root = NULL; list_del_init(&pos->node); dso__put(pos); } @@ -624,7 +626,7 @@ size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp) { int i; size_t printed = 0; - struct dso *kdso = machine->vmlinux_maps[MAP__FUNCTION]->dso; + struct dso *kdso = machine__kernel_map(machine)->dso; if (kdso->has_build_id) { char filename[PATH_MAX]; @@ -740,6 +742,7 @@ int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel) for (type = 0; type < MAP__NR_TYPES; ++type) { struct kmap *kmap; + struct map *map; machine->vmlinux_maps[type] = map__new2(start, kernel, type); if (machine->vmlinux_maps[type] == NULL) @@ -748,13 +751,13 @@ int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel) machine->vmlinux_maps[type]->map_ip = machine->vmlinux_maps[type]->unmap_ip = identity__map_ip; - kmap = map__kmap(machine->vmlinux_maps[type]); + map = __machine__kernel_map(machine, type); + kmap = map__kmap(map); if (!kmap) return -1; kmap->kmaps = &machine->kmaps; - map_groups__insert(&machine->kmaps, - machine->vmlinux_maps[type]); + map_groups__insert(&machine->kmaps, map); } return 0; @@ -766,13 +769,13 @@ void machine__destroy_kernel_maps(struct machine *machine) for (type = 0; type < MAP__NR_TYPES; ++type) { struct kmap *kmap; + struct map *map = __machine__kernel_map(machine, type); - if (machine->vmlinux_maps[type] == NULL) + if (map == NULL) continue; - kmap = map__kmap(machine->vmlinux_maps[type]); - map_groups__remove(&machine->kmaps, - machine->vmlinux_maps[type]); + kmap = map__kmap(map); + map_groups__remove(&machine->kmaps, map); if (kmap && kmap->ref_reloc_sym) { /* * ref_reloc_sym is shared among all maps, so free just @@ -866,7 +869,7 @@ int machines__create_kernel_maps(struct machines *machines, pid_t pid) int machine__load_kallsyms(struct machine *machine, const char *filename, enum map_type type, symbol_filter_t filter) { - struct map *map = machine->vmlinux_maps[type]; + struct map *map = machine__kernel_map(machine); int ret = dso__load_kallsyms(map->dso, filename, map, filter); if (ret > 0) { @@ -885,7 +888,7 @@ int machine__load_kallsyms(struct machine *machine, const char *filename, int machine__load_vmlinux_path(struct machine *machine, enum map_type type, symbol_filter_t filter) { - struct map *map = machine->vmlinux_maps[type]; + struct map *map = machine__kernel_map(machine); int ret = dso__load_vmlinux_path(map->dso, map, filter); if (ret > 0) @@ -1243,8 +1246,7 @@ static int machine__process_kernel_mmap_event(struct machine *machine, /* * preload dso of guest kernel and modules */ - dso__load(kernel, machine->vmlinux_maps[MAP__FUNCTION], - NULL); + dso__load(kernel, machine__kernel_map(machine), NULL); } } return 0; @@ -1830,7 +1832,7 @@ static int thread__resolve_callchain_sample(struct thread *thread, } check_calls: - if (chain->nr > PERF_MAX_STACK_DEPTH) { + if (chain->nr > PERF_MAX_STACK_DEPTH && (int)chain->nr > max_stack) { pr_warning("corrupted callchain. skipping...\n"); return 0; } @@ -1996,7 +1998,7 @@ int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid, int machine__get_kernel_start(struct machine *machine) { - struct map *map = machine__kernel_map(machine, MAP__FUNCTION); + struct map *map = machine__kernel_map(machine); int err = 0; /* diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index ea5cb4a62..2c2b443df 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -34,6 +34,7 @@ struct machine { struct list_head dead_threads; struct thread *last_match; struct vdso_info *vdso_info; + struct perf_env *env; struct dsos dsos; struct map_groups kmaps; struct map *vmlinux_maps[MAP__NR_TYPES]; @@ -47,11 +48,17 @@ struct machine { }; static inline -struct map *machine__kernel_map(struct machine *machine, enum map_type type) +struct map *__machine__kernel_map(struct machine *machine, enum map_type type) { return machine->vmlinux_maps[type]; } +static inline +struct map *machine__kernel_map(struct machine *machine) +{ + return __machine__kernel_map(machine, MAP__FUNCTION); +} + int machine__get_kernel_start(struct machine *machine); static inline u64 machine__kernel_start(struct machine *machine) diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index b1c475d9b..afc6b56cf 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -235,7 +235,7 @@ struct map *map__new2(u64 start, struct dso *dso, enum map_type type) */ bool __map__is_kernel(const struct map *map) { - return map->groups->machine->vmlinux_maps[map->type] == map; + return __machine__kernel_map(map->groups->machine, map->type) == map; } static void map__exit(struct map *map) @@ -553,13 +553,9 @@ struct symbol *map_groups__find_symbol(struct map_groups *mg, return NULL; } -struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg, - enum map_type type, - const char *name, - struct map **mapp, - symbol_filter_t filter) +struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name, + struct map **mapp, symbol_filter_t filter) { - struct maps *maps = &mg->maps[type]; struct symbol *sym; struct rb_node *nd; @@ -583,6 +579,17 @@ out: return sym; } +struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg, + enum map_type type, + const char *name, + struct map **mapp, + symbol_filter_t filter) +{ + struct symbol *sym = maps__find_symbol_by_name(&mg->maps[type], name, mapp, filter); + + return sym; +} + int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter) { if (ams->addr < ams->map->start || ams->addr >= ams->map->end) { @@ -637,6 +644,12 @@ size_t map_groups__fprintf(struct map_groups *mg, FILE *fp) return printed; } +static void __map_groups__insert(struct map_groups *mg, struct map *map) +{ + __maps__insert(&mg->maps[map->type], map); + map->groups = mg; +} + static int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp) { struct rb_root *root; @@ -675,7 +688,7 @@ static int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp } before->end = map->start; - __maps__insert(maps, before); + __map_groups__insert(pos->groups, before); if (verbose >= 2) map__fprintf(before, fp); } @@ -689,7 +702,7 @@ static int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp } after->start = map->end; - __maps__insert(maps, after); + __map_groups__insert(pos->groups, after); if (verbose >= 2) map__fprintf(after, fp); } diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h index 57829e89b..7309d64ce 100644 --- a/tools/perf/util/map.h +++ b/tools/perf/util/map.h @@ -190,6 +190,8 @@ void maps__remove(struct maps *maps, struct map *map); struct map *maps__find(struct maps *maps, u64 addr); struct map *maps__first(struct maps *maps); struct map *map__next(struct map *map); +struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name, + struct map **mapp, symbol_filter_t filter); void map_groups__init(struct map_groups *mg, struct machine *machine); void map_groups__exit(struct map_groups *mg); int map_groups__clone(struct map_groups *mg, diff --git a/tools/perf/util/parse-branch-options.c b/tools/perf/util/parse-branch-options.c index a3b1e13a0..355eecf6b 100644 --- a/tools/perf/util/parse-branch-options.c +++ b/tools/perf/util/parse-branch-options.c @@ -27,6 +27,7 @@ static const struct branch_mode branch_modes[] = { BRANCH_OPT("no_tx", PERF_SAMPLE_BRANCH_NO_TX), BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND), BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP), + BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL), BRANCH_END }; diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 21ed6ee63..6fc8cd753 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -1,4 +1,5 @@ #include <linux/hw_breakpoint.h> +#include <linux/err.h> #include "util.h" #include "../perf.h" #include "evlist.h" @@ -10,8 +11,9 @@ #include "symbol.h" #include "cache.h" #include "header.h" +#include "bpf-loader.h" #include "debug.h" -#include <api/fs/debugfs.h> +#include <api/fs/tracing_path.h> #include "parse-events-bison.h" #define YY_EXTRA_TYPE int #include "parse-events-flex.h" @@ -26,6 +28,8 @@ extern int parse_events_debug; #endif int parse_events_parse(void *data, void *scanner); +static int get_config_terms(struct list_head *head_config, + struct list_head *head_terms __maybe_unused); static struct perf_pmu_event_symbol *perf_pmu_events_list; /* @@ -120,6 +124,10 @@ struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = { .symbol = "dummy", .alias = "", }, + [PERF_COUNT_SW_BPF_OUTPUT] = { + .symbol = "bpf-output", + .alias = "", + }, }; #define __PERF_EVENT_FIELD(config, name) \ @@ -386,32 +394,72 @@ int parse_events_add_cache(struct list_head *list, int *idx, return add_event(list, idx, &attr, name, NULL); } +static void tracepoint_error(struct parse_events_error *e, int err, + char *sys, char *name) +{ + char help[BUFSIZ]; + + /* + * We get error directly from syscall errno ( > 0), + * or from encoded pointer's error ( < 0). + */ + err = abs(err); + + switch (err) { + case EACCES: + e->str = strdup("can't access trace events"); + break; + case ENOENT: + e->str = strdup("unknown tracepoint"); + break; + default: + e->str = strdup("failed to add tracepoint"); + break; + } + + tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name); + e->help = strdup(help); +} + static int add_tracepoint(struct list_head *list, int *idx, - char *sys_name, char *evt_name) + char *sys_name, char *evt_name, + struct parse_events_error *err, + struct list_head *head_config) { struct perf_evsel *evsel; evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++); - if (!evsel) - return -ENOMEM; + if (IS_ERR(evsel)) { + tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name); + return PTR_ERR(evsel); + } - list_add_tail(&evsel->node, list); + if (head_config) { + LIST_HEAD(config_terms); + if (get_config_terms(head_config, &config_terms)) + return -ENOMEM; + list_splice(&config_terms, &evsel->config_terms); + } + + list_add_tail(&evsel->node, list); return 0; } static int add_tracepoint_multi_event(struct list_head *list, int *idx, - char *sys_name, char *evt_name) + char *sys_name, char *evt_name, + struct parse_events_error *err, + struct list_head *head_config) { char evt_path[MAXPATHLEN]; struct dirent *evt_ent; DIR *evt_dir; - int ret = 0; + int ret = 0, found = 0; snprintf(evt_path, MAXPATHLEN, "%s/%s", tracing_events_path, sys_name); evt_dir = opendir(evt_path); if (!evt_dir) { - perror("Can't open event dir"); + tracepoint_error(err, errno, sys_name, evt_name); return -1; } @@ -425,7 +473,15 @@ static int add_tracepoint_multi_event(struct list_head *list, int *idx, if (!strglobmatch(evt_ent->d_name, evt_name)) continue; - ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name); + found++; + + ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name, + err, head_config); + } + + if (!found) { + tracepoint_error(err, ENOENT, sys_name, evt_name); + ret = -1; } closedir(evt_dir); @@ -433,15 +489,21 @@ static int add_tracepoint_multi_event(struct list_head *list, int *idx, } static int add_tracepoint_event(struct list_head *list, int *idx, - char *sys_name, char *evt_name) + char *sys_name, char *evt_name, + struct parse_events_error *err, + struct list_head *head_config) { return strpbrk(evt_name, "*?") ? - add_tracepoint_multi_event(list, idx, sys_name, evt_name) : - add_tracepoint(list, idx, sys_name, evt_name); + add_tracepoint_multi_event(list, idx, sys_name, evt_name, + err, head_config) : + add_tracepoint(list, idx, sys_name, evt_name, + err, head_config); } static int add_tracepoint_multi_sys(struct list_head *list, int *idx, - char *sys_name, char *evt_name) + char *sys_name, char *evt_name, + struct parse_events_error *err, + struct list_head *head_config) { struct dirent *events_ent; DIR *events_dir; @@ -449,7 +511,7 @@ static int add_tracepoint_multi_sys(struct list_head *list, int *idx, events_dir = opendir(tracing_events_path); if (!events_dir) { - perror("Can't open event dir"); + tracepoint_error(err, errno, sys_name, evt_name); return -1; } @@ -465,20 +527,136 @@ static int add_tracepoint_multi_sys(struct list_head *list, int *idx, continue; ret = add_tracepoint_event(list, idx, events_ent->d_name, - evt_name); + evt_name, err, head_config); } closedir(events_dir); return ret; } -int parse_events_add_tracepoint(struct list_head *list, int *idx, - char *sys, char *event) +struct __add_bpf_event_param { + struct parse_events_evlist *data; + struct list_head *list; +}; + +static int add_bpf_event(struct probe_trace_event *tev, int fd, + void *_param) { - if (strpbrk(sys, "*?")) - return add_tracepoint_multi_sys(list, idx, sys, event); - else - return add_tracepoint_event(list, idx, sys, event); + LIST_HEAD(new_evsels); + struct __add_bpf_event_param *param = _param; + struct parse_events_evlist *evlist = param->data; + struct list_head *list = param->list; + struct perf_evsel *pos; + int err; + + pr_debug("add bpf event %s:%s and attach bpf program %d\n", + tev->group, tev->event, fd); + + err = parse_events_add_tracepoint(&new_evsels, &evlist->idx, tev->group, + tev->event, evlist->error, NULL); + if (err) { + struct perf_evsel *evsel, *tmp; + + pr_debug("Failed to add BPF event %s:%s\n", + tev->group, tev->event); + list_for_each_entry_safe(evsel, tmp, &new_evsels, node) { + list_del(&evsel->node); + perf_evsel__delete(evsel); + } + return err; + } + pr_debug("adding %s:%s\n", tev->group, tev->event); + + list_for_each_entry(pos, &new_evsels, node) { + pr_debug("adding %s:%s to %p\n", + tev->group, tev->event, pos); + pos->bpf_fd = fd; + } + list_splice(&new_evsels, list); + return 0; +} + +int parse_events_load_bpf_obj(struct parse_events_evlist *data, + struct list_head *list, + struct bpf_object *obj) +{ + int err; + char errbuf[BUFSIZ]; + struct __add_bpf_event_param param = {data, list}; + static bool registered_unprobe_atexit = false; + + if (IS_ERR(obj) || !obj) { + snprintf(errbuf, sizeof(errbuf), + "Internal error: load bpf obj with NULL"); + err = -EINVAL; + goto errout; + } + + /* + * Register atexit handler before calling bpf__probe() so + * bpf__probe() don't need to unprobe probe points its already + * created when failure. + */ + if (!registered_unprobe_atexit) { + atexit(bpf__clear); + registered_unprobe_atexit = true; + } + + err = bpf__probe(obj); + if (err) { + bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf)); + goto errout; + } + + err = bpf__load(obj); + if (err) { + bpf__strerror_load(obj, err, errbuf, sizeof(errbuf)); + goto errout; + } + + err = bpf__foreach_tev(obj, add_bpf_event, ¶m); + if (err) { + snprintf(errbuf, sizeof(errbuf), + "Attach events in BPF object failed"); + goto errout; + } + + return 0; +errout: + data->error->help = strdup("(add -v to see detail)"); + data->error->str = strdup(errbuf); + return err; +} + +int parse_events_load_bpf(struct parse_events_evlist *data, + struct list_head *list, + char *bpf_file_name, + bool source) +{ + struct bpf_object *obj; + + obj = bpf__prepare_load(bpf_file_name, source); + if (IS_ERR(obj)) { + char errbuf[BUFSIZ]; + int err; + + err = PTR_ERR(obj); + + if (err == -ENOTSUP) + snprintf(errbuf, sizeof(errbuf), + "BPF support is not compiled"); + else + bpf__strerror_prepare_load(bpf_file_name, + source, + -err, errbuf, + sizeof(errbuf)); + + data->error->help = strdup("(add -v to see detail)"); + data->error->str = strdup(errbuf); + return err; + } + + return parse_events_load_bpf_obj(data, list, obj); } static int @@ -565,9 +743,13 @@ static int check_type_val(struct parse_events_term *term, return -EINVAL; } -static int config_term(struct perf_event_attr *attr, - struct parse_events_term *term, - struct parse_events_error *err) +typedef int config_term_func_t(struct perf_event_attr *attr, + struct parse_events_term *term, + struct parse_events_error *err); + +static int config_term_common(struct perf_event_attr *attr, + struct parse_events_term *term, + struct parse_events_error *err) { #define CHECK_TYPE_VAL(type) \ do { \ @@ -576,12 +758,6 @@ do { \ } while (0) switch (term->type_term) { - case PARSE_EVENTS__TERM_TYPE_USER: - /* - * Always succeed for sysfs terms, as we dont know - * at this point what type they need to have. - */ - return 0; case PARSE_EVENTS__TERM_TYPE_CONFIG: CHECK_TYPE_VAL(NUM); attr->config = term->val.num; @@ -620,10 +796,19 @@ do { \ case PARSE_EVENTS__TERM_TYPE_STACKSIZE: CHECK_TYPE_VAL(NUM); break; + case PARSE_EVENTS__TERM_TYPE_INHERIT: + CHECK_TYPE_VAL(NUM); + break; + case PARSE_EVENTS__TERM_TYPE_NOINHERIT: + CHECK_TYPE_VAL(NUM); + break; case PARSE_EVENTS__TERM_TYPE_NAME: CHECK_TYPE_VAL(STR); break; default: + err->str = strdup("unknown term"); + err->idx = term->err_term; + err->help = parse_events_formats_error_string(NULL); return -EINVAL; } @@ -631,9 +816,46 @@ do { \ #undef CHECK_TYPE_VAL } +static int config_term_pmu(struct perf_event_attr *attr, + struct parse_events_term *term, + struct parse_events_error *err) +{ + if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER) + /* + * Always succeed for sysfs terms, as we dont know + * at this point what type they need to have. + */ + return 0; + else + return config_term_common(attr, term, err); +} + +static int config_term_tracepoint(struct perf_event_attr *attr, + struct parse_events_term *term, + struct parse_events_error *err) +{ + switch (term->type_term) { + case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: + case PARSE_EVENTS__TERM_TYPE_STACKSIZE: + case PARSE_EVENTS__TERM_TYPE_INHERIT: + case PARSE_EVENTS__TERM_TYPE_NOINHERIT: + return config_term_common(attr, term, err); + default: + if (err) { + err->idx = term->err_term; + err->str = strdup("unknown term"); + err->help = strdup("valid terms: call-graph,stack-size\n"); + } + return -EINVAL; + } + + return 0; +} + static int config_attr(struct perf_event_attr *attr, struct list_head *head, - struct parse_events_error *err) + struct parse_events_error *err, + config_term_func_t config_term) { struct parse_events_term *term; @@ -680,6 +902,12 @@ do { \ case PARSE_EVENTS__TERM_TYPE_STACKSIZE: ADD_CONFIG_TERM(STACK_USER, stack_user, term->val.num); break; + case PARSE_EVENTS__TERM_TYPE_INHERIT: + ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 1 : 0); + break; + case PARSE_EVENTS__TERM_TYPE_NOINHERIT: + ADD_CONFIG_TERM(INHERIT, inherit, term->val.num ? 0 : 1); + break; default: break; } @@ -688,6 +916,27 @@ do { \ return 0; } +int parse_events_add_tracepoint(struct list_head *list, int *idx, + char *sys, char *event, + struct parse_events_error *err, + struct list_head *head_config) +{ + if (head_config) { + struct perf_event_attr attr; + + if (config_attr(&attr, head_config, err, + config_term_tracepoint)) + return -EINVAL; + } + + if (strpbrk(sys, "*?")) + return add_tracepoint_multi_sys(list, idx, sys, event, + err, head_config); + else + return add_tracepoint_event(list, idx, sys, event, + err, head_config); +} + int parse_events_add_numeric(struct parse_events_evlist *data, struct list_head *list, u32 type, u64 config, @@ -701,7 +950,8 @@ int parse_events_add_numeric(struct parse_events_evlist *data, attr.config = config; if (head_config) { - if (config_attr(&attr, head_config, data->error)) + if (config_attr(&attr, head_config, data->error, + config_term_common)) return -EINVAL; if (get_config_terms(head_config, &config_terms)) @@ -761,7 +1011,7 @@ int parse_events_add_pmu(struct parse_events_evlist *data, * Configure hardcoded terms first, no need to check * return value when called with fail == 0 ;) */ - if (config_attr(&attr, head_config, data->error)) + if (config_attr(&attr, head_config, data->error, config_term_pmu)) return -EINVAL; if (get_config_terms(head_config, &config_terms)) @@ -793,6 +1043,11 @@ void parse_events__set_leader(char *name, struct list_head *list) { struct perf_evsel *leader; + if (list_empty(list)) { + WARN_ONCE(true, "WARNING: failed to set leader: empty list"); + return; + } + __perf_evlist__set_leader(list); leader = list_entry(list->next, struct perf_evsel, node); leader->group_name = name ? strdup(name) : NULL; @@ -819,6 +1074,7 @@ struct event_modifier { int eG; int eI; int precise; + int precise_max; int exclude_GH; int sample_read; int pinned; @@ -834,6 +1090,7 @@ static int get_event_modifier(struct event_modifier *mod, char *str, int eG = evsel ? evsel->attr.exclude_guest : 0; int eI = evsel ? evsel->attr.exclude_idle : 0; int precise = evsel ? evsel->attr.precise_ip : 0; + int precise_max = 0; int sample_read = 0; int pinned = evsel ? evsel->attr.pinned : 0; @@ -870,6 +1127,8 @@ static int get_event_modifier(struct event_modifier *mod, char *str, /* use of precise requires exclude_guest */ if (!exclude_GH) eG = 1; + } else if (*str == 'P') { + precise_max = 1; } else if (*str == 'S') { sample_read = 1; } else if (*str == 'D') { @@ -900,6 +1159,7 @@ static int get_event_modifier(struct event_modifier *mod, char *str, mod->eG = eG; mod->eI = eI; mod->precise = precise; + mod->precise_max = precise_max; mod->exclude_GH = exclude_GH; mod->sample_read = sample_read; mod->pinned = pinned; @@ -916,7 +1176,7 @@ static int check_modifier(char *str) char *p = str; /* The sizeof includes 0 byte as well. */ - if (strlen(str) > (sizeof("ukhGHpppSDI") - 1)) + if (strlen(str) > (sizeof("ukhGHpppPSDI") - 1)) return -1; while (*p) { @@ -955,6 +1215,7 @@ int parse_events__modifier_event(struct list_head *list, char *str, bool add) evsel->attr.exclude_idle = mod.eI; evsel->exclude_GH = mod.exclude_GH; evsel->sample_read = mod.sample_read; + evsel->precise_max = mod.precise_max; if (perf_evsel__is_group_leader(evsel)) evsel->attr.pinned = mod.pinned; @@ -1142,6 +1403,11 @@ int parse_events(struct perf_evlist *evlist, const char *str, if (!ret) { struct perf_evsel *last; + if (list_empty(&data.list)) { + WARN_ONCE(true, "WARNING: event parser found nothing"); + return -1; + } + perf_evlist__splice_list_tail(evlist, &data.list); evlist->nr_groups += data.nr_groups; last = perf_evlist__last(evlist); @@ -1251,6 +1517,12 @@ foreach_evsel_in_last_glob(struct perf_evlist *evlist, struct perf_evsel *last = NULL; int err; + /* + * Don't return when list_empty, give func a chance to report + * error when it found last == NULL. + * + * So no need to WARN here, let *func do this. + */ if (evlist->nr_entries > 0) last = perf_evlist__last(evlist); @@ -1419,7 +1691,7 @@ restart: printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[PERF_TYPE_TRACEPOINT]); } - if (evt_num) + if (evt_num && pager_in_use()) printf("\n"); out_free: @@ -1575,7 +1847,7 @@ restart: printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[PERF_TYPE_HW_CACHE]); } - if (evt_num) + if (evt_num && pager_in_use()) printf("\n"); out_free: @@ -1611,7 +1883,7 @@ restart: for (i = 0; i < max; i++, syms++) { - if (event_glob != NULL && + if (event_glob != NULL && syms->symbol != NULL && !(strglobmatch(syms->symbol, event_glob) || (syms->alias && strglobmatch(syms->alias, event_glob)))) continue; @@ -1648,7 +1920,7 @@ restart: } printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]); } - if (evt_num) + if (evt_num && pager_in_use()) printf("\n"); out_free: @@ -1689,13 +1961,14 @@ void print_events(const char *event_glob, bool name_only) printf(" %-50s [%s]\n", "cpu/t1=v1[,t2=v2,t3 ...]/modifier", event_type_descriptors[PERF_TYPE_RAW]); - printf(" (see 'man perf-list' on how to encode it)\n"); - printf("\n"); + if (pager_in_use()) + printf(" (see 'man perf-list' on how to encode it)\n\n"); printf(" %-50s [%s]\n", "mem:<addr>[/len][:access]", event_type_descriptors[PERF_TYPE_BREAKPOINT]); - printf("\n"); + if (pager_in_use()) + printf("\n"); } print_tracepoint_events(NULL, NULL, name_only); @@ -1811,3 +2084,29 @@ void parse_events_evlist_error(struct parse_events_evlist *data, err->str = strdup(str); WARN_ONCE(!err->str, "WARNING: failed to allocate error string"); } + +/* + * Return string contains valid config terms of an event. + * @additional_terms: For terms such as PMU sysfs terms. + */ +char *parse_events_formats_error_string(char *additional_terms) +{ + char *str; + static const char *static_terms = "config,config1,config2,name," + "period,freq,branch_type,time," + "call-graph,stack-size\n"; + + /* valid terms */ + if (additional_terms) { + if (!asprintf(&str, "valid terms: %s,%s", + additional_terms, static_terms)) + goto fail; + } else { + if (!asprintf(&str, "valid terms: %s", static_terms)) + goto fail; + } + return str; + +fail: + return NULL; +} diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index a09b0e210..f1a6db107 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -67,6 +67,8 @@ enum { PARSE_EVENTS__TERM_TYPE_TIME, PARSE_EVENTS__TERM_TYPE_CALLGRAPH, PARSE_EVENTS__TERM_TYPE_STACKSIZE, + PARSE_EVENTS__TERM_TYPE_NOINHERIT, + PARSE_EVENTS__TERM_TYPE_INHERIT }; struct parse_events_term { @@ -118,7 +120,18 @@ int parse_events__modifier_event(struct list_head *list, char *str, bool add); int parse_events__modifier_group(struct list_head *list, char *event_mod); int parse_events_name(struct list_head *list, char *name); int parse_events_add_tracepoint(struct list_head *list, int *idx, - char *sys, char *event); + char *sys, char *event, + struct parse_events_error *error, + struct list_head *head_config); +int parse_events_load_bpf(struct parse_events_evlist *data, + struct list_head *list, + char *bpf_file_name, + bool source); +/* Provide this function for perf test */ +struct bpf_object; +int parse_events_load_bpf_obj(struct parse_events_evlist *data, + struct list_head *list, + struct bpf_object *obj); int parse_events_add_numeric(struct parse_events_evlist *data, struct list_head *list, u32 type, u64 config, @@ -155,5 +168,6 @@ int print_hwcache_events(const char *event_glob, bool name_only); extern int is_valid_tracepoint(const char *event_string); int valid_event_mount(const char *eventfs); +char *parse_events_formats_error_string(char *additional_terms); #endif /* __PERF_PARSE_EVENTS_H */ diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index 936d566f4..58c5831ff 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -115,6 +115,8 @@ do { \ group [^,{}/]*[{][^}]*[}][^,{}/]* event_pmu [^,{}/]+[/][^/]*[/][^,{}/]* event [^,{}/]+ +bpf_object .*\.(o|bpf) +bpf_source .*\.c num_dec [0-9]+ num_hex 0x[a-fA-F0-9]+ @@ -122,7 +124,7 @@ num_raw_hex [a-fA-F0-9]+ name [a-zA-Z_*?][a-zA-Z0-9_*?.]* name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?.]* /* If you add a modifier you need to update check_modifier() */ -modifier_event [ukhpGHSDI]+ +modifier_event [ukhpPGHSDI]+ modifier_bp [rwx]{1,3} %% @@ -159,6 +161,8 @@ modifier_bp [rwx]{1,3} } {event_pmu} | +{bpf_object} | +{bpf_source} | {event} { BEGIN(INITIAL); REWIND(1); @@ -174,7 +178,7 @@ modifier_bp [rwx]{1,3} <config>{ /* - * Please update formats_error_string any time + * Please update parse_events_formats_error_string any time * new static term is added. */ config { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); } @@ -187,6 +191,8 @@ branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE time { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_TIME); } call-graph { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CALLGRAPH); } stack-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_STACKSIZE); } +inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_INHERIT); } +no-inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOINHERIT); } , { return ','; } "/" { BEGIN(INITIAL); return '/'; } {name_minus} { return str(yyscanner, PE_NAME); } @@ -264,6 +270,8 @@ r{num_raw_hex} { return raw(yyscanner); } {num_hex} { return value(yyscanner, 16); } {modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); } +{bpf_object} { return str(yyscanner, PE_BPF_OBJECT); } +{bpf_source} { return str(yyscanner, PE_BPF_SOURCE); } {name} { return pmu_str_check(yyscanner); } "/" { BEGIN(config); return '/'; } - { return '-'; } diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index 9cd70819c..ad379968d 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -42,6 +42,7 @@ static inc_group_count(struct list_head *list, %token PE_VALUE PE_VALUE_SYM_HW PE_VALUE_SYM_SW PE_RAW PE_TERM %token PE_EVENT_NAME %token PE_NAME +%token PE_BPF_OBJECT PE_BPF_SOURCE %token PE_MODIFIER_EVENT PE_MODIFIER_BP %token PE_NAME_CACHE_TYPE PE_NAME_CACHE_OP_RESULT %token PE_PREFIX_MEM PE_PREFIX_RAW PE_PREFIX_GROUP @@ -53,6 +54,8 @@ static inc_group_count(struct list_head *list, %type <num> PE_RAW %type <num> PE_TERM %type <str> PE_NAME +%type <str> PE_BPF_OBJECT +%type <str> PE_BPF_SOURCE %type <str> PE_NAME_CACHE_TYPE %type <str> PE_NAME_CACHE_OP_RESULT %type <str> PE_MODIFIER_EVENT @@ -67,8 +70,10 @@ static inc_group_count(struct list_head *list, %type <head> event_legacy_cache %type <head> event_legacy_mem %type <head> event_legacy_tracepoint +%type <tracepoint_name> tracepoint_name %type <head> event_legacy_numeric %type <head> event_legacy_raw +%type <head> event_bpf_file %type <head> event_def %type <head> event_mod %type <head> event_name @@ -84,6 +89,10 @@ static inc_group_count(struct list_head *list, u64 num; struct list_head *head; struct parse_events_term *term; + struct tracepoint_name { + char *sys; + char *event; + } tracepoint_name; } %% @@ -198,7 +207,8 @@ event_def: event_pmu | event_legacy_mem | event_legacy_tracepoint sep_dc | event_legacy_numeric sep_dc | - event_legacy_raw sep_dc + event_legacy_raw sep_dc | + event_bpf_file event_pmu: PE_NAME '/' event_config '/' @@ -368,36 +378,60 @@ PE_PREFIX_MEM PE_VALUE sep_dc } event_legacy_tracepoint: -PE_NAME '-' PE_NAME ':' PE_NAME +tracepoint_name { struct parse_events_evlist *data = _data; + struct parse_events_error *error = data->error; struct list_head *list; - char sys_name[128]; - snprintf(&sys_name, 128, "%s-%s", $1, $3); ALLOC_LIST(list); - ABORT_ON(parse_events_add_tracepoint(list, &data->idx, &sys_name, $5)); + if (error) + error->idx = @1.first_column; + + if (parse_events_add_tracepoint(list, &data->idx, $1.sys, $1.event, + error, NULL)) + return -1; + $$ = list; } | -PE_NAME ':' PE_NAME +tracepoint_name '/' event_config '/' { struct parse_events_evlist *data = _data; + struct parse_events_error *error = data->error; struct list_head *list; ALLOC_LIST(list); - if (parse_events_add_tracepoint(list, &data->idx, $1, $3)) { - struct parse_events_error *error = data->error; + if (error) + error->idx = @1.first_column; - if (error) { - error->idx = @1.first_column; - error->str = strdup("unknown tracepoint"); - } + if (parse_events_add_tracepoint(list, &data->idx, $1.sys, $1.event, + error, $3)) return -1; - } + $$ = list; } +tracepoint_name: +PE_NAME '-' PE_NAME ':' PE_NAME +{ + char sys_name[128]; + struct tracepoint_name tracepoint; + + snprintf(&sys_name, 128, "%s-%s", $1, $3); + tracepoint.sys = &sys_name; + tracepoint.event = $5; + + $$ = tracepoint; +} +| +PE_NAME ':' PE_NAME +{ + struct tracepoint_name tracepoint = {$1, $3}; + + $$ = tracepoint; +} + event_legacy_numeric: PE_VALUE ':' PE_VALUE { @@ -420,6 +454,28 @@ PE_RAW $$ = list; } +event_bpf_file: +PE_BPF_OBJECT +{ + struct parse_events_evlist *data = _data; + struct parse_events_error *error = data->error; + struct list_head *list; + + ALLOC_LIST(list); + ABORT_ON(parse_events_load_bpf(data, list, $1, false)); + $$ = list; +} +| +PE_BPF_SOURCE +{ + struct parse_events_evlist *data = _data; + struct list_head *list; + + ALLOC_LIST(list); + ABORT_ON(parse_events_load_bpf(data, list, $1, true)); + $$ = list; +} + start_terms: event_config { struct parse_events_terms *data = _data; diff --git a/tools/perf/util/parse-options.c b/tools/perf/util/parse-options.c index 01626be2a..9fca09296 100644 --- a/tools/perf/util/parse-options.c +++ b/tools/perf/util/parse-options.c @@ -2,10 +2,13 @@ #include "parse-options.h" #include "cache.h" #include "header.h" +#include <linux/string.h> #define OPT_SHORT 1 #define OPT_UNSET 2 +static struct strbuf error_buf = STRBUF_INIT; + static int opterror(const struct option *opt, const char *reason, int flags) { if (flags & OPT_SHORT) @@ -372,7 +375,8 @@ void parse_options_start(struct parse_opt_ctx_t *ctx, } static int usage_with_options_internal(const char * const *, - const struct option *, int); + const struct option *, int, + struct parse_opt_ctx_t *); int parse_options_step(struct parse_opt_ctx_t *ctx, const struct option *options, @@ -396,8 +400,9 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, if (arg[1] != '-') { ctx->opt = ++arg; - if (internal_help && *ctx->opt == 'h') - return usage_with_options_internal(usagestr, options, 0); + if (internal_help && *ctx->opt == 'h') { + return usage_with_options_internal(usagestr, options, 0, ctx); + } switch (parse_short_opt(ctx, options)) { case -1: return parse_options_usage(usagestr, options, arg, 1); @@ -412,7 +417,7 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, check_typos(arg, options); while (ctx->opt) { if (internal_help && *ctx->opt == 'h') - return usage_with_options_internal(usagestr, options, 0); + return usage_with_options_internal(usagestr, options, 0, ctx); arg = ctx->opt; switch (parse_short_opt(ctx, options)) { case -1: @@ -445,9 +450,9 @@ int parse_options_step(struct parse_opt_ctx_t *ctx, arg += 2; if (internal_help && !strcmp(arg, "help-all")) - return usage_with_options_internal(usagestr, options, 1); + return usage_with_options_internal(usagestr, options, 1, ctx); if (internal_help && !strcmp(arg, "help")) - return usage_with_options_internal(usagestr, options, 0); + return usage_with_options_internal(usagestr, options, 0, ctx); if (!strcmp(arg, "list-opts")) return PARSE_OPT_LIST_OPTS; if (!strcmp(arg, "list-cmds")) @@ -496,7 +501,7 @@ int parse_options_subcommand(int argc, const char **argv, const struct option *o { struct parse_opt_ctx_t ctx; - perf_header__set_cmdline(argc, argv); + perf_env__set_cmdline(&perf_env, argc, argv); /* build usage string if it's not provided */ if (subcommands && !usagestr[0]) { @@ -537,9 +542,11 @@ int parse_options_subcommand(int argc, const char **argv, const struct option *o exit(130); default: /* PARSE_OPT_UNKNOWN */ if (ctx.argv[0][1] == '-') { - error("unknown option `%s'", ctx.argv[0] + 2); + strbuf_addf(&error_buf, "unknown option `%s'", + ctx.argv[0] + 2); } else { - error("unknown switch `%c'", *ctx.opt); + strbuf_addf(&error_buf, "unknown switch `%c'", + *ctx.opt); } usage_with_options(usagestr, options); } @@ -642,13 +649,93 @@ static void print_option_help(const struct option *opts, int full) fprintf(stderr, "%*s%s\n", pad + USAGE_GAP, "", opts->help); } +static int option__cmp(const void *va, const void *vb) +{ + const struct option *a = va, *b = vb; + int sa = tolower(a->short_name), sb = tolower(b->short_name), ret; + + if (sa == 0) + sa = 'z' + 1; + if (sb == 0) + sb = 'z' + 1; + + ret = sa - sb; + + if (ret == 0) { + const char *la = a->long_name ?: "", + *lb = b->long_name ?: ""; + ret = strcmp(la, lb); + } + + return ret; +} + +static struct option *options__order(const struct option *opts) +{ + int nr_opts = 0; + const struct option *o = opts; + struct option *ordered; + + for (o = opts; o->type != OPTION_END; o++) + ++nr_opts; + + ordered = memdup(opts, sizeof(*o) * (nr_opts + 1)); + if (ordered == NULL) + goto out; + + qsort(ordered, nr_opts, sizeof(*o), option__cmp); +out: + return ordered; +} + +static bool option__in_argv(const struct option *opt, const struct parse_opt_ctx_t *ctx) +{ + int i; + + for (i = 1; i < ctx->argc; ++i) { + const char *arg = ctx->argv[i]; + + if (arg[0] != '-') { + if (arg[1] == '\0') { + if (arg[0] == opt->short_name) + return true; + continue; + } + + if (opt->long_name && strcmp(opt->long_name, arg) == 0) + return true; + + if (opt->help && strcasestr(opt->help, arg) != NULL) + return true; + + continue; + } + + if (arg[1] == opt->short_name || + (arg[1] == '-' && opt->long_name && strcmp(opt->long_name, arg + 2) == 0)) + return true; + } + + return false; +} + int usage_with_options_internal(const char * const *usagestr, - const struct option *opts, int full) + const struct option *opts, int full, + struct parse_opt_ctx_t *ctx) { + struct option *ordered; + if (!usagestr) return PARSE_OPT_HELP; - fprintf(stderr, "\n usage: %s\n", *usagestr++); + setup_pager(); + + if (strbuf_avail(&error_buf)) { + fprintf(stderr, " Error: %s\n", error_buf.buf); + strbuf_release(&error_buf); + } + + fprintf(stderr, "\n Usage: %s\n", *usagestr++); while (*usagestr && **usagestr) fprintf(stderr, " or: %s\n", *usagestr++); while (*usagestr) { @@ -661,11 +748,20 @@ int usage_with_options_internal(const char * const *usagestr, if (opts->type != OPTION_GROUP) fputc('\n', stderr); - for ( ; opts->type != OPTION_END; opts++) + ordered = options__order(opts); + if (ordered) + opts = ordered; + + for ( ; opts->type != OPTION_END; opts++) { + if (ctx && ctx->argc > 1 && !option__in_argv(opts, ctx)) + continue; print_option_help(opts, full); + } fputc('\n', stderr); + free(ordered); + return PARSE_OPT_HELP; } @@ -673,7 +769,22 @@ void usage_with_options(const char * const *usagestr, const struct option *opts) { exit_browser(false); - usage_with_options_internal(usagestr, opts, 0); + usage_with_options_internal(usagestr, opts, 0, NULL); + exit(129); +} + +void usage_with_options_msg(const char * const *usagestr, + const struct option *opts, const char *fmt, ...) +{ + va_list ap; + + exit_browser(false); + + va_start(ap, fmt); + strbuf_addv(&error_buf, fmt, ap); + va_end(ap); + + usage_with_options_internal(usagestr, opts, 0, NULL); exit(129); } @@ -684,7 +795,7 @@ int parse_options_usage(const char * const *usagestr, if (!usagestr) goto opt; - fprintf(stderr, "\n usage: %s\n", *usagestr++); + fprintf(stderr, "\n Usage: %s\n", *usagestr++); while (*usagestr && **usagestr) fprintf(stderr, " or: %s\n", *usagestr++); while (*usagestr) { @@ -698,24 +809,23 @@ int parse_options_usage(const char * const *usagestr, opt: for ( ; opts->type != OPTION_END; opts++) { if (short_opt) { - if (opts->short_name == *optstr) + if (opts->short_name == *optstr) { + print_option_help(opts, 0); break; + } continue; } if (opts->long_name == NULL) continue; - if (!prefixcmp(optstr, opts->long_name)) - break; - if (!prefixcmp(optstr, "no-") && - !prefixcmp(optstr + 3, opts->long_name)) - break; + if (!prefixcmp(opts->long_name, optstr)) + print_option_help(opts, 0); + if (!prefixcmp("no-", optstr) && + !prefixcmp(opts->long_name, optstr + 3)) + print_option_help(opts, 0); } - if (opts->type != OPTION_END) - print_option_help(opts, 0); - return PARSE_OPT_HELP; } diff --git a/tools/perf/util/parse-options.h b/tools/perf/util/parse-options.h index 367d8b816..a8e407bc2 100644 --- a/tools/perf/util/parse-options.h +++ b/tools/perf/util/parse-options.h @@ -111,6 +111,7 @@ struct option { #define OPT_GROUP(h) { .type = OPTION_GROUP, .help = (h) } #define OPT_BIT(s, l, v, h, b) { .type = OPTION_BIT, .short_name = (s), .long_name = (l), .value = check_vtype(v, int *), .help = (h), .defval = (b) } #define OPT_BOOLEAN(s, l, v, h) { .type = OPTION_BOOLEAN, .short_name = (s), .long_name = (l), .value = check_vtype(v, bool *), .help = (h) } +#define OPT_BOOLEAN_FLAG(s, l, v, h, f) { .type = OPTION_BOOLEAN, .short_name = (s), .long_name = (l), .value = check_vtype(v, bool *), .help = (h), .flags = (f) } #define OPT_BOOLEAN_SET(s, l, v, os, h) \ { .type = OPTION_BOOLEAN, .short_name = (s), .long_name = (l), \ .value = check_vtype(v, bool *), .help = (h), \ @@ -160,6 +161,10 @@ extern int parse_options_subcommand(int argc, const char **argv, extern NORETURN void usage_with_options(const char * const *usagestr, const struct option *options); +extern NORETURN __attribute__((format(printf,3,4))) +void usage_with_options_msg(const char * const *usagestr, + const struct option *options, + const char *fmt, ...); /*----- incremantal advanced APIs -----*/ diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 89c91a1a6..e4b173dec 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -626,38 +626,26 @@ static int pmu_resolve_param_term(struct parse_events_term *term, return -1; } -static char *formats_error_string(struct list_head *formats) +static char *pmu_formats_string(struct list_head *formats) { struct perf_pmu_format *format; - char *err, *str; - static const char *static_terms = "config,config1,config2,name," - "period,freq,branch_type,time," - "call-graph,stack-size\n"; + char *str; + struct strbuf buf; unsigned i = 0; - if (!asprintf(&str, "valid terms:")) + if (!formats) return NULL; + strbuf_init(&buf, 0); /* sysfs exported terms */ - list_for_each_entry(format, formats, list) { - char c = i++ ? ',' : ' '; - - err = str; - if (!asprintf(&str, "%s%c%s", err, c, format->name)) - goto fail; - free(err); - } + list_for_each_entry(format, formats, list) + strbuf_addf(&buf, i++ ? ",%s" : "%s", + format->name); - /* static terms */ - err = str; - if (!asprintf(&str, "%s,%s", err, static_terms)) - goto fail; + str = strbuf_detach(&buf, NULL); + strbuf_release(&buf); - free(err); return str; -fail: - free(err); - return NULL; } /* @@ -693,9 +681,12 @@ static int pmu_config_term(struct list_head *formats, if (verbose) printf("Invalid event/parameter '%s'\n", term->config); if (err) { + char *pmu_term = pmu_formats_string(formats); + err->idx = term->err_term; err->str = strdup("unknown term"); - err->help = formats_error_string(formats); + err->help = parse_events_formats_error_string(pmu_term); + free(pmu_term); } return -EINVAL; } @@ -1017,7 +1008,8 @@ void print_pmu_events(const char *event_glob, bool name_only) goto out_enomem; j++; } - if (pmu->selectable) { + if (pmu->selectable && + (event_glob == NULL || strglobmatch(pmu->name, event_glob))) { char *s; if (asprintf(&s, "%s//", pmu->name) < 0) goto out_enomem; @@ -1035,7 +1027,7 @@ void print_pmu_events(const char *event_glob, bool name_only) printf(" %-50s [Kernel PMU event]\n", aliases[j]); printed++; } - if (printed) + if (printed && pager_in_use()) printf("\n"); out_free: for (j = 0; j < len; j++) diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index c6f9af78f..03875f915 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -40,8 +40,7 @@ #include "color.h" #include "symbol.h" #include "thread.h" -#include <api/fs/debugfs.h> -#include <api/fs/tracefs.h> +#include <api/fs/fs.h> #include "trace-event.h" /* For __maybe_unused */ #include "probe-event.h" #include "probe-finder.h" @@ -72,7 +71,7 @@ static char *synthesize_perf_probe_point(struct perf_probe_point *pp); static struct machine *host_machine; /* Initialize symbol maps and path of vmlinux/modules */ -static int init_symbol_maps(bool user_only) +int init_probe_symbol_maps(bool user_only) { int ret; @@ -102,7 +101,7 @@ out: return ret; } -static void exit_symbol_maps(void) +void exit_probe_symbol_maps(void) { if (host_machine) { machine__delete(host_machine); @@ -127,17 +126,19 @@ static struct ref_reloc_sym *kernel_get_ref_reloc_sym(void) { /* kmap->ref_reloc_sym should be set if host_machine is initialized */ struct kmap *kmap; + struct map *map = machine__kernel_map(host_machine); - if (map__load(host_machine->vmlinux_maps[MAP__FUNCTION], NULL) < 0) + if (map__load(map, NULL) < 0) return NULL; - kmap = map__kmap(host_machine->vmlinux_maps[MAP__FUNCTION]); + kmap = map__kmap(map); if (!kmap) return NULL; return kmap->ref_reloc_sym; } -static u64 kernel_get_symbol_address_by_name(const char *name, bool reloc) +static int kernel_get_symbol_address_by_name(const char *name, u64 *addr, + bool reloc, bool reladdr) { struct ref_reloc_sym *reloc_sym; struct symbol *sym; @@ -146,12 +147,14 @@ static u64 kernel_get_symbol_address_by_name(const char *name, bool reloc) /* ref_reloc_sym is just a label. Need a special fix*/ reloc_sym = kernel_get_ref_reloc_sym(); if (reloc_sym && strcmp(name, reloc_sym->name) == 0) - return (reloc) ? reloc_sym->addr : reloc_sym->unrelocated_addr; + *addr = (reloc) ? reloc_sym->addr : reloc_sym->unrelocated_addr; else { sym = __find_kernel_function_by_name(name, &map); - if (sym) - return map->unmap_ip(map, sym->start) - - ((reloc) ? 0 : map->reloc); + if (!sym) + return -ENOENT; + *addr = map->unmap_ip(map, sym->start) - + ((reloc) ? 0 : map->reloc) - + ((reladdr) ? map->start : 0); } return 0; } @@ -245,12 +248,14 @@ static void clear_probe_trace_events(struct probe_trace_event *tevs, int ntevs) static bool kprobe_blacklist__listed(unsigned long address); static bool kprobe_warn_out_range(const char *symbol, unsigned long address) { - u64 etext_addr; + u64 etext_addr = 0; + int ret; /* Get the address of _etext for checking non-probable text symbol */ - etext_addr = kernel_get_symbol_address_by_name("_etext", false); + ret = kernel_get_symbol_address_by_name("_etext", &etext_addr, + false, false); - if (etext_addr != 0 && etext_addr < address) + if (ret == 0 && etext_addr < address) pr_warning("%s is out of .text, skip it.\n", symbol); else if (kprobe_blacklist__listed(address)) pr_warning("%s is blacklisted function, skip it.\n", symbol); @@ -282,7 +287,7 @@ static int kernel_get_module_dso(const char *module, struct dso **pdso) return -ENOENT; } - map = host_machine->vmlinux_maps[MAP__FUNCTION]; + map = machine__kernel_map(host_machine); dso = map->dso; vmlinux_name = symbol_conf.vmlinux_name; @@ -436,19 +441,22 @@ static char *debuginfo_cache_path; static struct debuginfo *debuginfo_cache__open(const char *module, bool silent) { - if ((debuginfo_cache_path && !strcmp(debuginfo_cache_path, module)) || - (!debuginfo_cache_path && !module && debuginfo_cache)) + const char *path = module; + + /* If the module is NULL, it should be the kernel. */ + if (!module) + path = "kernel"; + + if (debuginfo_cache_path && !strcmp(debuginfo_cache_path, path)) goto out; /* Copy module path */ free(debuginfo_cache_path); - if (module) { - debuginfo_cache_path = strdup(module); - if (!debuginfo_cache_path) { - debuginfo__delete(debuginfo_cache); - debuginfo_cache = NULL; - goto out; - } + debuginfo_cache_path = strdup(path); + if (!debuginfo_cache_path) { + debuginfo__delete(debuginfo_cache); + debuginfo_cache = NULL; + goto out; } debuginfo_cache = open_debuginfo(module, silent); @@ -517,8 +525,10 @@ static int find_perf_probe_point_from_dwarf(struct probe_trace_point *tp, goto error; addr += stext; } else if (tp->symbol) { - addr = kernel_get_symbol_address_by_name(tp->symbol, false); - if (addr == 0) + /* If the module is given, this returns relative address */ + ret = kernel_get_symbol_address_by_name(tp->symbol, &addr, + false, !!tp->module); + if (ret != 0) goto error; addr += tp->offset; } @@ -861,11 +871,11 @@ int show_line_range(struct line_range *lr, const char *module, bool user) { int ret; - ret = init_symbol_maps(user); + ret = init_probe_symbol_maps(user); if (ret < 0) return ret; ret = __show_line_range(lr, module, user); - exit_symbol_maps(); + exit_probe_symbol_maps(); return ret; } @@ -943,7 +953,7 @@ int show_available_vars(struct perf_probe_event *pevs, int npevs, int i, ret = 0; struct debuginfo *dinfo; - ret = init_symbol_maps(pevs->uprobes); + ret = init_probe_symbol_maps(pevs->uprobes); if (ret < 0) return ret; @@ -960,7 +970,7 @@ int show_available_vars(struct perf_probe_event *pevs, int npevs, debuginfo__delete(dinfo); out: - exit_symbol_maps(); + exit_probe_symbol_maps(); return ret; } @@ -1884,13 +1894,17 @@ static int find_perf_probe_point_from_map(struct probe_trace_point *tp, goto out; sym = map__find_symbol(map, addr, NULL); } else { - if (tp->symbol) - addr = kernel_get_symbol_address_by_name(tp->symbol, true); + if (tp->symbol && !addr) { + if (kernel_get_symbol_address_by_name(tp->symbol, + &addr, true, false) < 0) + goto out; + } if (addr) { addr += tp->offset; sym = __find_kernel_function(addr, &map); } } + if (!sym) goto out; @@ -2055,7 +2069,7 @@ static void kprobe_blacklist__delete(struct list_head *blacklist) static int kprobe_blacklist__load(struct list_head *blacklist) { struct kprobe_blacklist_node *node; - const char *__debugfs = debugfs_find_mountpoint(); + const char *__debugfs = debugfs__mountpoint(); char buf[PATH_MAX], *p; FILE *fp; int ret; @@ -2181,9 +2195,9 @@ out: } /* Show an event */ -static int show_perf_probe_event(const char *group, const char *event, - struct perf_probe_event *pev, - const char *module, bool use_stdout) +int show_perf_probe_event(const char *group, const char *event, + struct perf_probe_event *pev, + const char *module, bool use_stdout) { struct strbuf buf = STRBUF_INIT; int ret; @@ -2264,7 +2278,7 @@ int show_perf_probe_events(struct strfilter *filter) setup_pager(); - ret = init_symbol_maps(false); + ret = init_probe_symbol_maps(false); if (ret < 0) return ret; @@ -2280,7 +2294,7 @@ int show_perf_probe_events(struct strfilter *filter) close(kp_fd); if (up_fd > 0) close(up_fd); - exit_symbol_maps(); + exit_probe_symbol_maps(); return ret; } @@ -2289,36 +2303,41 @@ static int get_new_event_name(char *buf, size_t len, const char *base, struct strlist *namelist, bool allow_suffix) { int i, ret; - char *p; + char *p, *nbase; if (*base == '.') base++; + nbase = strdup(base); + if (!nbase) + return -ENOMEM; + + /* Cut off the dot suffixes (e.g. .const, .isra)*/ + p = strchr(nbase, '.'); + if (p && p != nbase) + *p = '\0'; - /* Try no suffix */ - ret = e_snprintf(buf, len, "%s", base); + /* Try no suffix number */ + ret = e_snprintf(buf, len, "%s", nbase); if (ret < 0) { pr_debug("snprintf() failed: %d\n", ret); - return ret; + goto out; } - /* Cut off the postfixes (e.g. .const, .isra)*/ - p = strchr(buf, '.'); - if (p && p != buf) - *p = '\0'; if (!strlist__has_entry(namelist, buf)) - return 0; + goto out; if (!allow_suffix) { pr_warning("Error: event \"%s\" already exists. " - "(Use -f to force duplicates.)\n", base); - return -EEXIST; + "(Use -f to force duplicates.)\n", buf); + ret = -EEXIST; + goto out; } /* Try to add suffix */ for (i = 1; i < MAX_EVENT_INDEX; i++) { - ret = e_snprintf(buf, len, "%s_%d", base, i); + ret = e_snprintf(buf, len, "%s_%d", nbase, i); if (ret < 0) { pr_debug("snprintf() failed: %d\n", ret); - return ret; + goto out; } if (!strlist__has_entry(namelist, buf)) break; @@ -2328,6 +2347,8 @@ static int get_new_event_name(char *buf, size_t len, const char *base, ret = -ERANGE; } +out: + free(nbase); return ret; } @@ -2400,7 +2421,6 @@ static int __add_probe_trace_events(struct perf_probe_event *pev, { int i, fd, ret; struct probe_trace_event *tev = NULL; - const char *event = NULL, *group = NULL; struct strlist *namelist; fd = probe_file__open(PF_FL_RW | (pev->uprobes ? PF_FL_UPROBE : 0)); @@ -2416,7 +2436,6 @@ static int __add_probe_trace_events(struct perf_probe_event *pev, } ret = 0; - pr_info("Added new event%s\n", (ntevs > 1) ? "s:" : ":"); for (i = 0; i < ntevs; i++) { tev = &tevs[i]; /* Skip if the symbol is out of .text or blacklisted */ @@ -2433,13 +2452,6 @@ static int __add_probe_trace_events(struct perf_probe_event *pev, if (ret < 0) break; - /* We use tev's name for showing new events */ - show_perf_probe_event(tev->group, tev->event, pev, - tev->point.module, false); - /* Save the last valid name */ - event = tev->event; - group = tev->group; - /* * Probes after the first probe which comes from same * user input are always allowed to add suffix, because @@ -2451,13 +2463,6 @@ static int __add_probe_trace_events(struct perf_probe_event *pev, if (ret == -EINVAL && pev->uprobes) warn_uprobe_event_compat(tev); - /* Note that it is possible to skip all events because of blacklist */ - if (ret >= 0 && event) { - /* Show how to use the event. */ - pr_info("\nYou can now use it in all perf tools, such as:\n\n"); - pr_info("\tperf record -e %s:%s -aR sleep 1\n\n", group, event); - } - strlist__delete(namelist); close_out: close(fd); @@ -2538,7 +2543,8 @@ static int find_probe_trace_events_from_map(struct perf_probe_event *pev, goto out; } - if (!pev->uprobes && !pp->retprobe) { + /* Note that the symbols in the kmodule are not relocated */ + if (!pev->uprobes && !pp->retprobe && !pev->target) { reloc_sym = kernel_get_ref_reloc_sym(); if (!reloc_sym) { pr_warning("Relocated base symbol is not found!\n"); @@ -2575,8 +2581,9 @@ static int find_probe_trace_events_from_map(struct perf_probe_event *pev, } /* Add one probe point */ tp->address = map->unmap_ip(map, sym->start) + pp->offset; - /* If we found a wrong one, mark it by NULL symbol */ - if (!pev->uprobes && + + /* Check the kprobe (not in module) is within .text */ + if (!pev->uprobes && !pev->target && kprobe_warn_out_range(sym->name, tp->address)) { tp->symbol = NULL; /* Skip it */ skipped++; @@ -2760,63 +2767,71 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev, return find_probe_trace_events_from_map(pev, tevs); } -struct __event_package { - struct perf_probe_event *pev; - struct probe_trace_event *tevs; - int ntevs; -}; - -int add_perf_probe_events(struct perf_probe_event *pevs, int npevs) +int convert_perf_probe_events(struct perf_probe_event *pevs, int npevs) { - int i, j, ret; - struct __event_package *pkgs; - - ret = 0; - pkgs = zalloc(sizeof(struct __event_package) * npevs); - - if (pkgs == NULL) - return -ENOMEM; - - ret = init_symbol_maps(pevs->uprobes); - if (ret < 0) { - free(pkgs); - return ret; - } + int i, ret; /* Loop 1: convert all events */ for (i = 0; i < npevs; i++) { - pkgs[i].pev = &pevs[i]; /* Init kprobe blacklist if needed */ - if (!pkgs[i].pev->uprobes) + if (!pevs[i].uprobes) kprobe_blacklist__init(); /* Convert with or without debuginfo */ - ret = convert_to_probe_trace_events(pkgs[i].pev, - &pkgs[i].tevs); + ret = convert_to_probe_trace_events(&pevs[i], &pevs[i].tevs); if (ret < 0) - goto end; - pkgs[i].ntevs = ret; + return ret; + pevs[i].ntevs = ret; } /* This just release blacklist only if allocated */ kprobe_blacklist__release(); + return 0; +} + +int apply_perf_probe_events(struct perf_probe_event *pevs, int npevs) +{ + int i, ret = 0; + /* Loop 2: add all events */ for (i = 0; i < npevs; i++) { - ret = __add_probe_trace_events(pkgs[i].pev, pkgs[i].tevs, - pkgs[i].ntevs, + ret = __add_probe_trace_events(&pevs[i], pevs[i].tevs, + pevs[i].ntevs, probe_conf.force_add); if (ret < 0) break; } -end: + return ret; +} + +void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs) +{ + int i, j; + /* Loop 3: cleanup and free trace events */ for (i = 0; i < npevs; i++) { - for (j = 0; j < pkgs[i].ntevs; j++) - clear_probe_trace_event(&pkgs[i].tevs[j]); - zfree(&pkgs[i].tevs); + for (j = 0; j < pevs[i].ntevs; j++) + clear_probe_trace_event(&pevs[i].tevs[j]); + zfree(&pevs[i].tevs); + pevs[i].ntevs = 0; + clear_perf_probe_event(&pevs[i]); } - free(pkgs); - exit_symbol_maps(); +} +int add_perf_probe_events(struct perf_probe_event *pevs, int npevs) +{ + int ret; + + ret = init_probe_symbol_maps(pevs->uprobes); + if (ret < 0) + return ret; + + ret = convert_perf_probe_events(pevs, npevs); + if (ret == 0) + ret = apply_perf_probe_events(pevs, npevs); + + cleanup_perf_probe_events(pevs, npevs); + + exit_probe_symbol_maps(); return ret; } @@ -2828,8 +2843,6 @@ int del_perf_probe_events(struct strfilter *filter) if (!str) return -EINVAL; - pr_debug("Delete filter: \'%s\'\n", str); - /* Get current event names */ ret = probe_file__open_both(&kfd, &ufd, PF_FL_RW); if (ret < 0) @@ -2844,9 +2857,6 @@ int del_perf_probe_events(struct strfilter *filter) ret = ret2; goto error; } - if (ret == -ENOENT && ret2 == -ENOENT) - pr_debug("\"%s\" does not hit any event.\n", str); - /* Note that this is silently ignored */ ret = 0; error: @@ -2881,7 +2891,7 @@ int show_available_funcs(const char *target, struct strfilter *_filter, struct map *map; int ret; - ret = init_symbol_maps(user); + ret = init_probe_symbol_maps(user); if (ret < 0) return ret; @@ -2911,7 +2921,7 @@ end: if (user) { map__put(map); } - exit_symbol_maps(); + exit_probe_symbol_maps(); return ret; } diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h index 6e7ec68a4..ba926c30f 100644 --- a/tools/perf/util/probe-event.h +++ b/tools/perf/util/probe-event.h @@ -87,6 +87,8 @@ struct perf_probe_event { bool uprobes; /* Uprobe event flag */ char *target; /* Target binary */ struct perf_probe_arg *args; /* Arguments */ + struct probe_trace_event *tevs; + int ntevs; }; /* Line range */ @@ -108,6 +110,8 @@ struct variable_list { }; struct map; +int init_probe_symbol_maps(bool user_only); +void exit_probe_symbol_maps(void); /* Command string to events */ extern int parse_perf_probe_command(const char *cmd, @@ -138,7 +142,14 @@ extern void line_range__clear(struct line_range *lr); extern int line_range__init(struct line_range *lr); extern int add_perf_probe_events(struct perf_probe_event *pevs, int npevs); +extern int convert_perf_probe_events(struct perf_probe_event *pevs, int npevs); +extern int apply_perf_probe_events(struct perf_probe_event *pevs, int npevs); +extern void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs); extern int del_perf_probe_events(struct strfilter *filter); + +extern int show_perf_probe_event(const char *group, const char *event, + struct perf_probe_event *pev, + const char *module, bool use_stdout); extern int show_perf_probe_events(struct strfilter *filter); extern int show_line_range(struct line_range *lr, const char *module, bool user); diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c index bbb243717..e3b3b92e4 100644 --- a/tools/perf/util/probe-file.c +++ b/tools/perf/util/probe-file.c @@ -22,8 +22,7 @@ #include "color.h" #include "symbol.h" #include "thread.h" -#include <api/fs/debugfs.h> -#include <api/fs/tracefs.h> +#include <api/fs/tracing_path.h> #include "probe-event.h" #include "probe-file.h" #include "session.h" @@ -73,21 +72,11 @@ static void print_both_open_warning(int kerr, int uerr) static int open_probe_events(const char *trace_file, bool readwrite) { char buf[PATH_MAX]; - const char *__debugfs; const char *tracing_dir = ""; int ret; - __debugfs = tracefs_find_mountpoint(); - if (__debugfs == NULL) { - tracing_dir = "tracing/"; - - __debugfs = debugfs_find_mountpoint(); - if (__debugfs == NULL) - return -ENOTSUP; - } - ret = e_snprintf(buf, PATH_MAX, "%s/%s%s", - __debugfs, tracing_dir, trace_file); + tracing_path, tracing_dir, trace_file); if (ret >= 0) { pr_debug("Opening %s write=%d\n", buf, readwrite); if (readwrite && !probe_event_dry_run) @@ -149,6 +138,9 @@ struct strlist *probe_file__get_rawlist(int fd) char *p; struct strlist *sl; + if (fd < 0) + return NULL; + sl = strlist__new(NULL, NULL); fp = fdopen(dup(fd), "r"); @@ -267,7 +259,6 @@ static int __del_trace_probe_event(int fd, struct str_node *ent) goto error; } - pr_info("Removed event: %s\n", ent->s); return 0; error: pr_warning("Failed to delete event: %s\n", @@ -275,13 +266,17 @@ error: return ret; } -int probe_file__del_events(int fd, struct strfilter *filter) +int probe_file__get_events(int fd, struct strfilter *filter, + struct strlist *plist) { struct strlist *namelist; struct str_node *ent; const char *p; int ret = -ENOENT; + if (!plist) + return -EINVAL; + namelist = __probe_file__get_namelist(fd, true); if (!namelist) return -ENOENT; @@ -290,12 +285,43 @@ int probe_file__del_events(int fd, struct strfilter *filter) p = strchr(ent->s, ':'); if ((p && strfilter__compare(filter, p + 1)) || strfilter__compare(filter, ent->s)) { - ret = __del_trace_probe_event(fd, ent); - if (ret < 0) - break; + strlist__add(plist, ent->s); + ret = 0; } } strlist__delete(namelist); return ret; } + +int probe_file__del_strlist(int fd, struct strlist *namelist) +{ + int ret = 0; + struct str_node *ent; + + strlist__for_each(ent, namelist) { + ret = __del_trace_probe_event(fd, ent); + if (ret < 0) + break; + } + return ret; +} + +int probe_file__del_events(int fd, struct strfilter *filter) +{ + struct strlist *namelist; + int ret; + + namelist = strlist__new(NULL, NULL); + if (!namelist) + return -ENOMEM; + + ret = probe_file__get_events(fd, filter, namelist); + if (ret < 0) + return ret; + + ret = probe_file__del_strlist(fd, namelist); + strlist__delete(namelist); + + return ret; +} diff --git a/tools/perf/util/probe-file.h b/tools/perf/util/probe-file.h index ada94a242..18ac9cf51 100644 --- a/tools/perf/util/probe-file.h +++ b/tools/perf/util/probe-file.h @@ -14,5 +14,9 @@ struct strlist *probe_file__get_namelist(int fd); struct strlist *probe_file__get_rawlist(int fd); int probe_file__add_event(int fd, struct probe_trace_event *tev); int probe_file__del_events(int fd, struct strfilter *filter); +int probe_file__get_events(int fd, struct strfilter *filter, + struct strlist *plist); +int probe_file__del_strlist(int fd, struct strlist *namelist); + #endif diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index 29c43c068..05012bb17 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -70,6 +70,7 @@ static int debuginfo__init_offline_dwarf(struct debuginfo *dbg, if (!dbg->dwfl) goto error; + dwfl_report_begin(dbg->dwfl); dbg->mod = dwfl_report_offline(dbg->dwfl, "", "", fd); if (!dbg->mod) goto error; @@ -78,6 +79,8 @@ static int debuginfo__init_offline_dwarf(struct debuginfo *dbg, if (!dbg->dbg) goto error; + dwfl_report_end(dbg->dwfl, NULL, NULL); + return 0; error: if (dbg->dwfl) @@ -591,6 +594,7 @@ static int find_variable(Dwarf_Die *sc_die, struct probe_finder *pf) /* Convert subprogram DIE to trace point */ static int convert_to_trace_point(Dwarf_Die *sp_die, Dwfl_Module *mod, Dwarf_Addr paddr, bool retprobe, + const char *function, struct probe_trace_point *tp) { Dwarf_Addr eaddr, highaddr; @@ -634,8 +638,10 @@ static int convert_to_trace_point(Dwarf_Die *sp_die, Dwfl_Module *mod, /* Return probe must be on the head of a subprogram */ if (retprobe) { if (eaddr != paddr) { - pr_warning("Return probe must be on the head of" - " a real function.\n"); + pr_warning("Failed to find \"%s%%return\",\n" + " because %s is an inlined function and" + " has no return point.\n", function, + function); return -EINVAL; } tp->retprobe = true; @@ -1175,8 +1181,9 @@ static int add_probe_trace_event(Dwarf_Die *sc_die, struct probe_finder *pf) { struct trace_event_finder *tf = container_of(pf, struct trace_event_finder, pf); + struct perf_probe_point *pp = &pf->pev->point; struct probe_trace_event *tev; - struct perf_probe_arg *args; + struct perf_probe_arg *args = NULL; int ret, i; /* Check number of tevs */ @@ -1189,21 +1196,25 @@ static int add_probe_trace_event(Dwarf_Die *sc_die, struct probe_finder *pf) /* Trace point should be converted from subprogram DIE */ ret = convert_to_trace_point(&pf->sp_die, tf->mod, pf->addr, - pf->pev->point.retprobe, &tev->point); + pp->retprobe, pp->function, &tev->point); if (ret < 0) - return ret; + goto end; tev->point.realname = strdup(dwarf_diename(sc_die)); - if (!tev->point.realname) - return -ENOMEM; + if (!tev->point.realname) { + ret = -ENOMEM; + goto end; + } pr_debug("Probe point found: %s+%lu\n", tev->point.symbol, tev->point.offset); /* Expand special probe argument if exist */ args = zalloc(sizeof(struct perf_probe_arg) * MAX_PROBE_ARGS); - if (args == NULL) - return -ENOMEM; + if (args == NULL) { + ret = -ENOMEM; + goto end; + } ret = expand_probe_args(sc_die, pf, args); if (ret < 0) @@ -1227,6 +1238,10 @@ static int add_probe_trace_event(Dwarf_Die *sc_die, struct probe_finder *pf) } end: + if (ret) { + clear_probe_trace_event(tev); + tf->ntevs--; + } free(args); return ret; } @@ -1239,7 +1254,7 @@ int debuginfo__find_trace_events(struct debuginfo *dbg, struct trace_event_finder tf = { .pf = {.pev = pev, .callback = add_probe_trace_event}, .max_tevs = probe_conf.max_probes, .mod = dbg->mod}; - int ret; + int ret, i; /* Allocate result tevs array */ *tevs = zalloc(sizeof(struct probe_trace_event) * tf.max_tevs); @@ -1251,6 +1266,8 @@ int debuginfo__find_trace_events(struct debuginfo *dbg, ret = debuginfo__find_probes(dbg, &tf.pf); if (ret < 0) { + for (i = 0; i < tf.ntevs; i++) + clear_probe_trace_event(&tf.tevs[i]); zfree(tevs); return ret; } @@ -1319,6 +1336,7 @@ static int add_available_vars(Dwarf_Die *sc_die, struct probe_finder *pf) { struct available_var_finder *af = container_of(pf, struct available_var_finder, pf); + struct perf_probe_point *pp = &pf->pev->point; struct variable_list *vl; Dwarf_Die die_mem; int ret; @@ -1332,7 +1350,7 @@ static int add_available_vars(Dwarf_Die *sc_die, struct probe_finder *pf) /* Trace point should be converted from subprogram DIE */ ret = convert_to_trace_point(&pf->sp_die, af->mod, pf->addr, - pf->pev->point.retprobe, &vl->point); + pp->retprobe, pp->function, &vl->point); if (ret < 0) return ret; @@ -1399,6 +1417,41 @@ int debuginfo__find_available_vars_at(struct debuginfo *dbg, return (ret < 0) ? ret : af.nvls; } +/* For the kernel module, we need a special code to get a DIE */ +static int debuginfo__get_text_offset(struct debuginfo *dbg, Dwarf_Addr *offs) +{ + int n, i; + Elf32_Word shndx; + Elf_Scn *scn; + Elf *elf; + GElf_Shdr mem, *shdr; + const char *p; + + elf = dwfl_module_getelf(dbg->mod, &dbg->bias); + if (!elf) + return -EINVAL; + + /* Get the number of relocations */ + n = dwfl_module_relocations(dbg->mod); + if (n < 0) + return -ENOENT; + /* Search the relocation related .text section */ + for (i = 0; i < n; i++) { + p = dwfl_module_relocation_info(dbg->mod, i, &shndx); + if (strcmp(p, ".text") == 0) { + /* OK, get the section header */ + scn = elf_getscn(elf, shndx); + if (!scn) + return -ENOENT; + shdr = gelf_getshdr(scn, &mem); + if (!shdr) + return -ENOENT; + *offs = shdr->sh_addr; + } + } + return 0; +} + /* Reverse search */ int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr, struct perf_probe_point *ppt) @@ -1407,9 +1460,16 @@ int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr, Dwarf_Addr _addr = 0, baseaddr = 0; const char *fname = NULL, *func = NULL, *basefunc = NULL, *tmp; int baseline = 0, lineno = 0, ret = 0; + bool reloc = false; +retry: /* Find cu die */ if (!dwarf_addrdie(dbg->dbg, (Dwarf_Addr)addr, &cudie)) { + if (!reloc && debuginfo__get_text_offset(dbg, &baseaddr) == 0) { + addr += baseaddr; + reloc = true; + goto retry; + } pr_warning("Failed to find debug information for address %lx\n", addr); ret = -EINVAL; diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c index 6324fe6b1..98f127abf 100644 --- a/tools/perf/util/python.c +++ b/tools/perf/util/python.c @@ -67,6 +67,7 @@ static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object."); static PyMemberDef pyrf_mmap_event__members[] = { sample_members member_def(perf_event_header, type, T_UINT, "event type"), + member_def(perf_event_header, misc, T_UINT, "event misc"), member_def(mmap_event, pid, T_UINT, "event pid"), member_def(mmap_event, tid, T_UINT, "event tid"), member_def(mmap_event, start, T_ULONGLONG, "start of the map"), @@ -297,6 +298,43 @@ static PyTypeObject pyrf_sample_event__type = { .tp_repr = (reprfunc)pyrf_sample_event__repr, }; +static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object."); + +static PyMemberDef pyrf_context_switch_event__members[] = { + sample_members + member_def(perf_event_header, type, T_UINT, "event type"), + member_def(context_switch_event, next_prev_pid, T_UINT, "next/prev pid"), + member_def(context_switch_event, next_prev_tid, T_UINT, "next/prev tid"), + { .name = NULL, }, +}; + +static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent) +{ + PyObject *ret; + char *s; + + if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }", + pevent->event.context_switch.next_prev_pid, + pevent->event.context_switch.next_prev_tid, + !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) { + ret = PyErr_NoMemory(); + } else { + ret = PyString_FromString(s); + free(s); + } + return ret; +} + +static PyTypeObject pyrf_context_switch_event__type = { + PyVarObject_HEAD_INIT(NULL, 0) + .tp_name = "perf.context_switch_event", + .tp_basicsize = sizeof(struct pyrf_event), + .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE, + .tp_doc = pyrf_context_switch_event__doc, + .tp_members = pyrf_context_switch_event__members, + .tp_repr = (reprfunc)pyrf_context_switch_event__repr, +}; + static int pyrf_event__setup_types(void) { int err; @@ -306,6 +344,7 @@ static int pyrf_event__setup_types(void) pyrf_lost_event__type.tp_new = pyrf_read_event__type.tp_new = pyrf_sample_event__type.tp_new = + pyrf_context_switch_event__type.tp_new = pyrf_throttle_event__type.tp_new = PyType_GenericNew; err = PyType_Ready(&pyrf_mmap_event__type); if (err < 0) @@ -328,6 +367,9 @@ static int pyrf_event__setup_types(void) err = PyType_Ready(&pyrf_sample_event__type); if (err < 0) goto out; + err = PyType_Ready(&pyrf_context_switch_event__type); + if (err < 0) + goto out; out: return err; } @@ -342,6 +384,8 @@ static PyTypeObject *pyrf_event__type[] = { [PERF_RECORD_FORK] = &pyrf_task_event__type, [PERF_RECORD_READ] = &pyrf_read_event__type, [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type, + [PERF_RECORD_SWITCH] = &pyrf_context_switch_event__type, + [PERF_RECORD_SWITCH_CPU_WIDE] = &pyrf_context_switch_event__type, }; static PyObject *pyrf_event__new(union perf_event *event) @@ -349,8 +393,10 @@ static PyObject *pyrf_event__new(union perf_event *event) struct pyrf_event *pevent; PyTypeObject *ptype; - if (event->header.type < PERF_RECORD_MMAP || - event->header.type > PERF_RECORD_SAMPLE) + if ((event->header.type < PERF_RECORD_MMAP || + event->header.type > PERF_RECORD_SAMPLE) && + !(event->header.type == PERF_RECORD_SWITCH || + event->header.type == PERF_RECORD_SWITCH_CPU_WIDE)) return NULL; ptype = pyrf_event__type[event->header.type]; @@ -528,6 +574,7 @@ static int pyrf_evsel__init(struct pyrf_evsel *pevsel, "exclude_hv", "exclude_idle", "mmap", + "context_switch", "comm", "freq", "inherit_stat", @@ -553,6 +600,7 @@ static int pyrf_evsel__init(struct pyrf_evsel *pevsel, exclude_hv = 0, exclude_idle = 0, mmap = 0, + context_switch = 0, comm = 0, freq = 1, inherit_stat = 0, @@ -565,13 +613,13 @@ static int pyrf_evsel__init(struct pyrf_evsel *pevsel, int idx = 0; if (!PyArg_ParseTupleAndKeywords(args, kwargs, - "|iKiKKiiiiiiiiiiiiiiiiiiiiiKK", kwlist, + "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist, &attr.type, &attr.config, &attr.sample_freq, &sample_period, &attr.sample_type, &attr.read_format, &disabled, &inherit, &pinned, &exclusive, &exclude_user, &exclude_kernel, &exclude_hv, &exclude_idle, - &mmap, &comm, &freq, &inherit_stat, + &mmap, &context_switch, &comm, &freq, &inherit_stat, &enable_on_exec, &task, &watermark, &precise_ip, &mmap_data, &sample_id_all, &attr.wakeup_events, &attr.bp_type, @@ -595,6 +643,7 @@ static int pyrf_evsel__init(struct pyrf_evsel *pevsel, attr.exclude_hv = exclude_hv; attr.exclude_idle = exclude_idle; attr.mmap = mmap; + attr.context_switch = context_switch; attr.comm = comm; attr.freq = freq; attr.inherit_stat = inherit_stat; @@ -1019,6 +1068,8 @@ static struct { PERF_CONST(RECORD_LOST_SAMPLES), PERF_CONST(RECORD_SWITCH), PERF_CONST(RECORD_SWITCH_CPU_WIDE), + + PERF_CONST(RECORD_MISC_SWITCH_OUT), { .name = NULL, }, }; diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c index 1bd593bbf..544509c15 100644 --- a/tools/perf/util/scripting-engines/trace-event-perl.c +++ b/tools/perf/util/scripting-engines/trace-event-perl.c @@ -221,6 +221,7 @@ static void define_event_symbols(struct event_format *event, break; case PRINT_BSTRING: case PRINT_DYNAMIC_ARRAY: + case PRINT_DYNAMIC_ARRAY_LEN: case PRINT_STRING: case PRINT_BITMASK: break; diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c index ace248498..a8e825fca 100644 --- a/tools/perf/util/scripting-engines/trace-event-python.c +++ b/tools/perf/util/scripting-engines/trace-event-python.c @@ -251,6 +251,7 @@ static void define_event_symbols(struct event_format *event, /* gcc warns for these? */ case PRINT_BSTRING: case PRINT_DYNAMIC_ARRAY: + case PRINT_DYNAMIC_ARRAY_LEN: case PRINT_FUNC: case PRINT_BITMASK: /* we should warn... */ @@ -318,7 +319,7 @@ static PyObject *python_process_callchain(struct perf_sample *sample, if (thread__resolve_callchain(al->thread, evsel, sample, NULL, NULL, - PERF_MAX_STACK_DEPTH) != 0) { + scripting_max_stack) != 0) { pr_err("Failed to resolve callchain. Skipping\n"); goto exit; } diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index fc3f7c922..c35ffdd36 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -29,7 +29,7 @@ static int perf_session__open(struct perf_session *session) struct perf_data_file *file = session->file; if (perf_session__read_header(session) < 0) { - pr_err("incompatible file format (rerun with -v to learn more)"); + pr_err("incompatible file format (rerun with -v to learn more)\n"); return -1; } @@ -37,17 +37,17 @@ static int perf_session__open(struct perf_session *session) return 0; if (!perf_evlist__valid_sample_type(session->evlist)) { - pr_err("non matching sample_type"); + pr_err("non matching sample_type\n"); return -1; } if (!perf_evlist__valid_sample_id_all(session->evlist)) { - pr_err("non matching sample_id_all"); + pr_err("non matching sample_id_all\n"); return -1; } if (!perf_evlist__valid_read_format(session->evlist)) { - pr_err("non matching read_format"); + pr_err("non matching read_format\n"); return -1; } @@ -138,6 +138,8 @@ struct perf_session *perf_session__new(struct perf_data_file *file, perf_session__set_id_hdr_size(session); perf_session__set_comm_exec(session); } + } else { + session->machines.host.env = &perf_env; } if (!file || perf_data_file__is_write(file)) { @@ -170,30 +172,13 @@ static void perf_session__delete_threads(struct perf_session *session) machine__delete_threads(&session->machines.host); } -static void perf_session_env__exit(struct perf_env *env) -{ - zfree(&env->hostname); - zfree(&env->os_release); - zfree(&env->version); - zfree(&env->arch); - zfree(&env->cpu_desc); - zfree(&env->cpuid); - - zfree(&env->cmdline); - zfree(&env->cmdline_argv); - zfree(&env->sibling_cores); - zfree(&env->sibling_threads); - zfree(&env->numa_nodes); - zfree(&env->pmu_mappings); -} - void perf_session__delete(struct perf_session *session) { auxtrace__free(session); auxtrace_index__free(&session->auxtrace_index); perf_session__destroy_kernel_maps(session); perf_session__delete_threads(session); - perf_session_env__exit(&session->header.env); + perf_env__exit(&session->header.env); machines__exit(&session->machines); if (session->file) perf_data_file__close(session->file); @@ -1079,11 +1064,11 @@ static int machines__deliver_event(struct machines *machines, switch (event->header.type) { case PERF_RECORD_SAMPLE: - dump_sample(evsel, event, sample); if (evsel == NULL) { ++evlist->stats.nr_unknown_id; return 0; } + dump_sample(evsel, event, sample); if (machine == NULL) { ++evlist->stats.nr_unprocessable_samples; return 0; @@ -1116,6 +1101,9 @@ static int machines__deliver_event(struct machines *machines, case PERF_RECORD_UNTHROTTLE: return tool->unthrottle(tool, event, sample, machine); case PERF_RECORD_AUX: + if (tool->aux == perf_event__process_aux && + (event->aux.flags & PERF_AUX_FLAG_TRUNCATED)) + evlist->stats.total_aux_lost += 1; return tool->aux(tool, event, sample, machine); case PERF_RECORD_ITRACE_START: return tool->itrace_start(tool, event, sample, machine); @@ -1323,7 +1311,7 @@ struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) return machine__findnew_thread(&session->machines.host, -1, pid); } -static struct thread *perf_session__register_idle_thread(struct perf_session *session) +struct thread *perf_session__register_idle_thread(struct perf_session *session) { struct thread *thread; @@ -1361,6 +1349,13 @@ static void perf_session__warn_about_errors(const struct perf_session *session) } } + if (session->tool->aux == perf_event__process_aux && + stats->total_aux_lost != 0) { + ui__warning("AUX data lost %" PRIu64 " times out of %u!\n\n", + stats->total_aux_lost, + stats->nr_events[PERF_RECORD_AUX]); + } + if (stats->nr_unknown_events != 0) { ui__warning("Found %u unknown events!\n\n" "Is this an older tool processing a perf.data " @@ -1805,7 +1800,7 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample, if (thread__resolve_callchain(al->thread, evsel, sample, NULL, NULL, - PERF_MAX_STACK_DEPTH) != 0) { + stack_depth) != 0) { if (verbose) error("Failed to resolve callchain. Skipping\n"); return; diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index b44afc75d..3e900c0ef 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -89,6 +89,8 @@ struct machine *perf_session__findnew_machine(struct perf_session *session, pid_ } struct thread *perf_session__findnew(struct perf_session *session, pid_t pid); +struct thread *perf_session__register_idle_thread(struct perf_session *session); + size_t perf_session__fprintf(struct perf_session *session, FILE *fp); size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp); diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c index 7e3871606..2d8ccd4d9 100644 --- a/tools/perf/util/sort.c +++ b/tools/perf/util/sort.c @@ -21,6 +21,7 @@ int sort__need_collapse = 0; int sort__has_parent = 0; int sort__has_sym = 0; int sort__has_dso = 0; +int sort__has_socket = 0; enum sort_mode sort__mode = SORT_MODE__NORMAL; @@ -328,8 +329,8 @@ static char *get_srcfile(struct hist_entry *e) char *sf, *p; struct map *map = e->ms.map; - sf = get_srcline(map->dso, map__rip_2objdump(map, e->ip), - e->ms.sym, true); + sf = __get_srcline(map->dso, map__rip_2objdump(map, e->ip), + e->ms.sym, false, true); if (!strcmp(sf, SRCLINE_UNKNOWN)) return no_srcfile; p = strchr(sf, ':'); @@ -421,6 +422,27 @@ struct sort_entry sort_cpu = { .se_width_idx = HISTC_CPU, }; +/* --sort socket */ + +static int64_t +sort__socket_cmp(struct hist_entry *left, struct hist_entry *right) +{ + return right->socket - left->socket; +} + +static int hist_entry__socket_snprintf(struct hist_entry *he, char *bf, + size_t size, unsigned int width) +{ + return repsep_snprintf(bf, size, "%*.*d", width, width-3, he->socket); +} + +struct sort_entry sort_socket = { + .se_header = "Socket", + .se_cmp = sort__socket_cmp, + .se_snprintf = hist_entry__socket_snprintf, + .se_width_idx = HISTC_SOCKET, +}; + /* sort keys for branch stacks */ static int64_t @@ -633,6 +655,35 @@ static int hist_entry__daddr_snprintf(struct hist_entry *he, char *bf, } static int64_t +sort__iaddr_cmp(struct hist_entry *left, struct hist_entry *right) +{ + uint64_t l = 0, r = 0; + + if (left->mem_info) + l = left->mem_info->iaddr.addr; + if (right->mem_info) + r = right->mem_info->iaddr.addr; + + return (int64_t)(r - l); +} + +static int hist_entry__iaddr_snprintf(struct hist_entry *he, char *bf, + size_t size, unsigned int width) +{ + uint64_t addr = 0; + struct map *map = NULL; + struct symbol *sym = NULL; + + if (he->mem_info) { + addr = he->mem_info->iaddr.addr; + map = he->mem_info->iaddr.map; + sym = he->mem_info->iaddr.sym; + } + return _hist_entry__sym_snprintf(map, sym, addr, he->level, bf, size, + width); +} + +static int64_t sort__dso_daddr_cmp(struct hist_entry *left, struct hist_entry *right) { struct map *map_l = NULL; @@ -1055,6 +1106,13 @@ struct sort_entry sort_mem_daddr_sym = { .se_width_idx = HISTC_MEM_DADDR_SYMBOL, }; +struct sort_entry sort_mem_iaddr_sym = { + .se_header = "Code Symbol", + .se_cmp = sort__iaddr_cmp, + .se_snprintf = hist_entry__iaddr_snprintf, + .se_width_idx = HISTC_MEM_IADDR_SYMBOL, +}; + struct sort_entry sort_mem_daddr_dso = { .se_header = "Data Object", .se_cmp = sort__dso_daddr_cmp, @@ -1248,6 +1306,7 @@ static struct sort_dimension common_sort_dimensions[] = { DIM(SORT_SYM, "symbol", sort_sym), DIM(SORT_PARENT, "parent", sort_parent), DIM(SORT_CPU, "cpu", sort_cpu), + DIM(SORT_SOCKET, "socket", sort_socket), DIM(SORT_SRCLINE, "srcline", sort_srcline), DIM(SORT_SRCFILE, "srcfile", sort_srcfile), DIM(SORT_LOCAL_WEIGHT, "local_weight", sort_local_weight), @@ -1276,6 +1335,7 @@ static struct sort_dimension bstack_sort_dimensions[] = { static struct sort_dimension memory_sort_dimensions[] = { DIM(SORT_MEM_DADDR_SYMBOL, "symbol_daddr", sort_mem_daddr_sym), + DIM(SORT_MEM_IADDR_SYMBOL, "symbol_iaddr", sort_mem_iaddr_sym), DIM(SORT_MEM_DADDR_DSO, "dso_daddr", sort_mem_daddr_dso), DIM(SORT_MEM_LOCKED, "locked", sort_mem_locked), DIM(SORT_MEM_TLB, "tlb", sort_mem_tlb), @@ -1517,6 +1577,12 @@ static int __hpp_dimension__add_output(struct hpp_dimension *hd) return 0; } +int hpp_dimension__add_output(unsigned col) +{ + BUG_ON(col >= PERF_HPP__MAX_INDEX); + return __hpp_dimension__add_output(&hpp_sort_dimensions[col]); +} + int sort_dimension__add(const char *tok) { unsigned int i; @@ -1550,6 +1616,8 @@ int sort_dimension__add(const char *tok) } else if (sd->entry == &sort_dso) { sort__has_dso = 1; + } else if (sd->entry == &sort_socket) { + sort__has_socket = 1; } return __sort_dimension__add(sd); @@ -1855,8 +1923,6 @@ static int __setup_output_field(void) if (field_order == NULL) return 0; - reset_dimensions(); - strp = str = strdup(field_order); if (str == NULL) { error("Not enough memory to setup output fields"); diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h index 3c2a399f8..31228851e 100644 --- a/tools/perf/util/sort.h +++ b/tools/perf/util/sort.h @@ -34,6 +34,7 @@ extern int have_ignore_callees; extern int sort__need_collapse; extern int sort__has_parent; extern int sort__has_sym; +extern int sort__has_socket; extern enum sort_mode sort__mode; extern struct sort_entry sort_comm; extern struct sort_entry sort_dso; @@ -90,6 +91,7 @@ struct hist_entry { struct comm *comm; u64 ip; u64 transaction; + s32 socket; s32 cpu; u8 cpumode; @@ -172,6 +174,7 @@ enum sort_type { SORT_SYM, SORT_PARENT, SORT_CPU, + SORT_SOCKET, SORT_SRCLINE, SORT_SRCFILE, SORT_LOCAL_WEIGHT, @@ -198,6 +201,7 @@ enum sort_type { SORT_MEM_LVL, SORT_MEM_SNOOP, SORT_MEM_DCACHELINE, + SORT_MEM_IADDR_SYMBOL, }; /* @@ -230,4 +234,6 @@ void perf_hpp__set_elide(int idx, bool elide); int report_parse_ignore_callees_opt(const struct option *opt, const char *arg, int unset); bool is_strict_order(const char *order); + +int hpp_dimension__add_output(unsigned col); #endif /* __PERF_SORT_H */ diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c index fc08248f0..b4db3f48e 100644 --- a/tools/perf/util/srcline.c +++ b/tools/perf/util/srcline.c @@ -149,8 +149,11 @@ static void addr2line_cleanup(struct a2l_data *a2l) free(a2l); } +#define MAX_INLINE_NEST 1024 + static int addr2line(const char *dso_name, u64 addr, - char **file, unsigned int *line, struct dso *dso) + char **file, unsigned int *line, struct dso *dso, + bool unwind_inlines) { int ret = 0; struct a2l_data *a2l = dso->a2l; @@ -170,6 +173,15 @@ static int addr2line(const char *dso_name, u64 addr, bfd_map_over_sections(a2l->abfd, find_address_in_section, a2l); + if (a2l->found && unwind_inlines) { + int cnt = 0; + + while (bfd_find_inliner_info(a2l->abfd, &a2l->filename, + &a2l->funcname, &a2l->line) && + cnt++ < MAX_INLINE_NEST) + ; + } + if (a2l->found && a2l->filename) { *file = strdup(a2l->filename); *line = a2l->line; @@ -197,7 +209,8 @@ void dso__free_a2l(struct dso *dso) static int addr2line(const char *dso_name, u64 addr, char **file, unsigned int *line_nr, - struct dso *dso __maybe_unused) + struct dso *dso __maybe_unused, + bool unwind_inlines __maybe_unused) { FILE *fp; char cmd[PATH_MAX]; @@ -254,8 +267,8 @@ void dso__free_a2l(struct dso *dso __maybe_unused) */ #define A2L_FAIL_LIMIT 123 -char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym, - bool show_sym) +char *__get_srcline(struct dso *dso, u64 addr, struct symbol *sym, + bool show_sym, bool unwind_inlines) { char *file = NULL; unsigned line = 0; @@ -276,7 +289,7 @@ char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym, if (!strncmp(dso_name, "/tmp/perf-", 10)) goto out; - if (!addr2line(dso_name, addr, &file, &line, dso)) + if (!addr2line(dso_name, addr, &file, &line, dso, unwind_inlines)) goto out; if (asprintf(&srcline, "%s:%u", @@ -310,3 +323,9 @@ void free_srcline(char *srcline) if (srcline && strcmp(srcline, SRCLINE_UNKNOWN) != 0) free(srcline); } + +char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym, + bool show_sym) +{ + return __get_srcline(dso, addr, sym, show_sym, false); +} diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 2a5d8d769..6ac031468 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -413,6 +413,11 @@ void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel, ratio = total / avg; fprintf(out, " # %8.0f cycles / elision ", ratio); + } else if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK)) { + if ((ratio = avg_stats(&walltime_nsecs_stats)) != 0) + fprintf(out, " # %8.3f CPUs utilized ", avg / ratio); + else + fprintf(out, " "); } else if (runtime_nsecs_stats[cpu].n != 0) { char unit = 'M'; diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index 2d065d065..2d9d8306d 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c @@ -67,7 +67,7 @@ double rel_stddev_stats(double stddev, double avg) bool __perf_evsel_stat__is(struct perf_evsel *evsel, enum perf_stat_evsel_id id) { - struct perf_stat *ps = evsel->priv; + struct perf_stat_evsel *ps = evsel->priv; return ps->id == id; } @@ -84,7 +84,7 @@ static const char *id_str[PERF_STAT_EVSEL_ID__MAX] = { void perf_stat_evsel_id_init(struct perf_evsel *evsel) { - struct perf_stat *ps = evsel->priv; + struct perf_stat_evsel *ps = evsel->priv; int i; /* ps->id is 0 hence PERF_STAT_EVSEL_ID__NONE by default */ @@ -100,7 +100,7 @@ void perf_stat_evsel_id_init(struct perf_evsel *evsel) void perf_evsel__reset_stat_priv(struct perf_evsel *evsel) { int i; - struct perf_stat *ps = evsel->priv; + struct perf_stat_evsel *ps = evsel->priv; for (i = 0; i < 3; i++) init_stats(&ps->res_stats[i]); @@ -110,7 +110,7 @@ void perf_evsel__reset_stat_priv(struct perf_evsel *evsel) int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel) { - evsel->priv = zalloc(sizeof(struct perf_stat)); + evsel->priv = zalloc(sizeof(struct perf_stat_evsel)); if (evsel->priv == NULL) return -ENOMEM; perf_evsel__reset_stat_priv(evsel); @@ -230,7 +230,7 @@ static int check_per_pkg(struct perf_evsel *counter, if (!(vals->run && vals->ena)) return 0; - s = cpu_map__get_socket(cpus, cpu); + s = cpu_map__get_socket(cpus, cpu, NULL); if (s < 0) return -1; @@ -272,6 +272,7 @@ process_counter_values(struct perf_stat_config *config, struct perf_evsel *evsel aggr->ena += count->ena; aggr->run += count->run; } + case AGGR_UNSET: default: break; } @@ -304,7 +305,7 @@ int perf_stat_process_counter(struct perf_stat_config *config, struct perf_evsel *counter) { struct perf_counts_values *aggr = &counter->counts->aggr; - struct perf_stat *ps = counter->priv; + struct perf_stat_evsel *ps = counter->priv; u64 *count = counter->counts->aggr.values; int i, ret; diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h index 62448c817..da1d11c4f 100644 --- a/tools/perf/util/stat.h +++ b/tools/perf/util/stat.h @@ -20,7 +20,7 @@ enum perf_stat_evsel_id { PERF_STAT_EVSEL_ID__MAX, }; -struct perf_stat { +struct perf_stat_evsel { struct stats res_stats[3]; enum perf_stat_evsel_id id; }; @@ -31,6 +31,7 @@ enum aggr_mode { AGGR_SOCKET, AGGR_CORE, AGGR_THREAD, + AGGR_UNSET, }; struct perf_stat_config { diff --git a/tools/perf/util/strbuf.c b/tools/perf/util/strbuf.c index 4abe23550..25671fa16 100644 --- a/tools/perf/util/strbuf.c +++ b/tools/perf/util/strbuf.c @@ -82,23 +82,22 @@ void strbuf_add(struct strbuf *sb, const void *data, size_t len) strbuf_setlen(sb, sb->len + len); } -void strbuf_addf(struct strbuf *sb, const char *fmt, ...) +void strbuf_addv(struct strbuf *sb, const char *fmt, va_list ap) { int len; - va_list ap; + va_list ap_saved; if (!strbuf_avail(sb)) strbuf_grow(sb, 64); - va_start(ap, fmt); + + va_copy(ap_saved, ap); len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap); - va_end(ap); if (len < 0) die("your vsnprintf is broken"); if (len > strbuf_avail(sb)) { strbuf_grow(sb, len); - va_start(ap, fmt); - len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap); - va_end(ap); + len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap_saved); + va_end(ap_saved); if (len > strbuf_avail(sb)) { die("this should not happen, your vsnprintf is broken"); } @@ -106,6 +105,15 @@ void strbuf_addf(struct strbuf *sb, const char *fmt, ...) strbuf_setlen(sb, sb->len + len); } +void strbuf_addf(struct strbuf *sb, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + strbuf_addv(sb, fmt, ap); + va_end(ap); +} + ssize_t strbuf_read(struct strbuf *sb, int fd, ssize_t hint) { size_t oldlen = sb->len; diff --git a/tools/perf/util/strbuf.h b/tools/perf/util/strbuf.h index 436ac319f..529f2f035 100644 --- a/tools/perf/util/strbuf.h +++ b/tools/perf/util/strbuf.h @@ -39,6 +39,7 @@ */ #include <assert.h> +#include <stdarg.h> extern char strbuf_slopbuf[]; struct strbuf { @@ -85,6 +86,7 @@ static inline void strbuf_addstr(struct strbuf *sb, const char *s) { __attribute__((format(printf,2,3))) extern void strbuf_addf(struct strbuf *sb, const char *fmt, ...); +extern void strbuf_addv(struct strbuf *sb, const char *fmt, va_list ap); /* XXX: if read fails, any partial read is undone */ extern ssize_t strbuf_read(struct strbuf *, int fd, ssize_t hint); diff --git a/tools/perf/util/symbol-minimal.c b/tools/perf/util/symbol-minimal.c index fd8477cac..48906333a 100644 --- a/tools/perf/util/symbol-minimal.c +++ b/tools/perf/util/symbol-minimal.c @@ -337,7 +337,7 @@ int dso__load_sym(struct dso *dso, struct map *map __maybe_unused, symbol_filter_t filter __maybe_unused, int kmodule __maybe_unused) { - unsigned char *build_id[BUILD_ID_SIZE]; + unsigned char build_id[BUILD_ID_SIZE]; int ret; ret = fd__is_64_bit(ss->fd); diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 1f97ffb15..cd08027a6 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -624,7 +624,7 @@ static int map__process_kallsym_symbol(void *arg, const char *name, * symbols, setting length to 0, and rely on * symbols__fixup_end() to fix it up. */ - sym = symbol__new(start, 0, kallsyms2elf_type(type), name); + sym = symbol__new(start, 0, kallsyms2elf_binding(type), name); if (sym == NULL) return -ENOMEM; /* @@ -654,19 +654,24 @@ static int dso__split_kallsyms_for_kcore(struct dso *dso, struct map *map, struct map_groups *kmaps = map__kmaps(map); struct map *curr_map; struct symbol *pos; - int count = 0, moved = 0; + int count = 0; + struct rb_root old_root = dso->symbols[map->type]; struct rb_root *root = &dso->symbols[map->type]; struct rb_node *next = rb_first(root); if (!kmaps) return -1; + *root = RB_ROOT; + while (next) { char *module; pos = rb_entry(next, struct symbol, rb_node); next = rb_next(&pos->rb_node); + rb_erase_init(&pos->rb_node, &old_root); + module = strchr(pos->name, '\t'); if (module) *module = '\0'; @@ -674,28 +679,21 @@ static int dso__split_kallsyms_for_kcore(struct dso *dso, struct map *map, curr_map = map_groups__find(kmaps, map->type, pos->start); if (!curr_map || (filter && filter(curr_map, pos))) { - rb_erase_init(&pos->rb_node, root); symbol__delete(pos); - } else { - pos->start -= curr_map->start - curr_map->pgoff; - if (pos->end) - pos->end -= curr_map->start - curr_map->pgoff; - if (curr_map != map) { - rb_erase_init(&pos->rb_node, root); - symbols__insert( - &curr_map->dso->symbols[curr_map->type], - pos); - ++moved; - } else { - ++count; - } + continue; } + + pos->start -= curr_map->start - curr_map->pgoff; + if (pos->end) + pos->end -= curr_map->start - curr_map->pgoff; + symbols__insert(&curr_map->dso->symbols[curr_map->type], pos); + ++count; } /* Symbols have been adjusted */ dso->adjust_symbols = 1; - return count + moved; + return count; } /* @@ -1406,6 +1404,7 @@ int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter) struct symsrc ss_[2]; struct symsrc *syms_ss = NULL, *runtime_ss = NULL; bool kmod; + unsigned char build_id[BUILD_ID_SIZE]; pthread_mutex_lock(&dso->lock); @@ -1437,9 +1436,9 @@ int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter) if (lstat(dso->name, &st) < 0) goto out; - if (st.st_uid && (st.st_uid != geteuid())) { + if (!symbol_conf.force && st.st_uid && (st.st_uid != geteuid())) { pr_warning("File %s not owned by current user or root, " - "ignoring it.\n", dso->name); + "ignoring it (use -f to override).\n", dso->name); goto out; } @@ -1461,6 +1460,14 @@ int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter) dso->symtab_type == DSO_BINARY_TYPE__GUEST_KMODULE || dso->symtab_type == DSO_BINARY_TYPE__GUEST_KMODULE_COMP; + + /* + * Read the build id if possible. This is required for + * DSO_BINARY_TYPE__BUILDID_DEBUGINFO to work + */ + if (filename__read_build_id(dso->name, build_id, BUILD_ID_SIZE) > 0) + dso__set_build_id(dso, build_id); + /* * Iterate over candidate debug images. * Keep track of "interesting" ones (those which have a symtab, dynsym, @@ -1607,6 +1614,15 @@ int dso__load_vmlinux_path(struct dso *dso, struct map *map, int i, err = 0; char *filename = NULL; + pr_debug("Looking at the vmlinux_path (%d entries long)\n", + vmlinux_path__nr_entries + 1); + + for (i = 0; i < vmlinux_path__nr_entries; ++i) { + err = dso__load_vmlinux(dso, map, vmlinux_path[i], false, filter); + if (err > 0) + goto out; + } + if (!symbol_conf.ignore_vmlinux_buildid) filename = dso__build_id_filename(dso, NULL, 0); if (filename != NULL) { @@ -1615,15 +1631,6 @@ int dso__load_vmlinux_path(struct dso *dso, struct map *map, goto out; free(filename); } - - pr_debug("Looking at the vmlinux_path (%d entries long)\n", - vmlinux_path__nr_entries + 1); - - for (i = 0; i < vmlinux_path__nr_entries; ++i) { - err = dso__load_vmlinux(dso, map, vmlinux_path[i], false, filter); - if (err > 0) - break; - } out: return err; } diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 440ba8ae8..dcd786e36 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -84,6 +84,7 @@ struct symbol_conf { unsigned short priv_size; unsigned short nr_events; bool try_vmlinux_path, + force, ignore_vmlinux, ignore_vmlinux_buildid, show_kernel_path, @@ -191,6 +192,7 @@ struct addr_location { u8 filtered; u8 cpumode; s32 cpu; + s32 socket; }; struct symsrc { diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c index 22245986e..d995743cb 100644 --- a/tools/perf/util/trace-event-info.c +++ b/tools/perf/util/trace-event-info.c @@ -38,7 +38,7 @@ #include "../perf.h" #include "trace-event.h" -#include <api/fs/debugfs.h> +#include <api/fs/tracing_path.h> #include "evsel.h" #include "debug.h" diff --git a/tools/perf/util/trace-event.c b/tools/perf/util/trace-event.c index b90e646c7..802bb868d 100644 --- a/tools/perf/util/trace-event.c +++ b/tools/perf/util/trace-event.c @@ -7,7 +7,9 @@ #include <sys/stat.h> #include <fcntl.h> #include <linux/kernel.h> +#include <linux/err.h> #include <traceevent/event-parse.h> +#include <api/fs/tracing_path.h> #include "trace-event.h" #include "machine.h" #include "util.h" @@ -65,6 +67,9 @@ void trace_event__cleanup(struct trace_event *t) pevent_free(t->pevent); } +/* + * Returns pointer with encoded error via <linux/err.h> interface. + */ static struct event_format* tp_format(const char *sys, const char *name) { @@ -73,12 +78,14 @@ tp_format(const char *sys, const char *name) char path[PATH_MAX]; size_t size; char *data; + int err; scnprintf(path, PATH_MAX, "%s/%s/%s/format", tracing_events_path, sys, name); - if (filename__read_str(path, &data, &size)) - return NULL; + err = filename__read_str(path, &data, &size); + if (err) + return ERR_PTR(err); pevent_parse_format(pevent, &event, data, size, sys); @@ -86,11 +93,14 @@ tp_format(const char *sys, const char *name) return event; } +/* + * Returns pointer with encoded error via <linux/err.h> interface. + */ struct event_format* trace_event__tp_format(const char *sys, const char *name) { if (!tevent_initialized && trace_event__init2()) - return NULL; + return ERR_PTR(-ENOMEM); return tp_format(sys, name); } diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h index da6cc4cc2..b85ee55cc 100644 --- a/tools/perf/util/trace-event.h +++ b/tools/perf/util/trace-event.h @@ -78,6 +78,8 @@ struct scripting_ops { int (*generate_script) (struct pevent *pevent, const char *outfile); }; +extern unsigned int scripting_max_stack; + int script_spec_register(const char *spec, struct scripting_ops *ops); void setup_perl_scripting(void); diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c index 4c00507ee..c83832b55 100644 --- a/tools/perf/util/unwind-libunwind.c +++ b/tools/perf/util/unwind-libunwind.c @@ -330,6 +330,7 @@ find_proc_info(unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi, struct map *map; unw_dyn_info_t di; u64 table_data, segbase, fde_count; + int ret = -EINVAL; map = find_map(ip, ui); if (!map || !map->dso) @@ -348,29 +349,33 @@ find_proc_info(unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi, di.u.rti.table_data = map->start + table_data; di.u.rti.table_len = fde_count * sizeof(struct table_entry) / sizeof(unw_word_t); - return dwarf_search_unwind_table(as, ip, &di, pi, - need_unwind_info, arg); + ret = dwarf_search_unwind_table(as, ip, &di, pi, + need_unwind_info, arg); } #ifndef NO_LIBUNWIND_DEBUG_FRAME /* Check the .debug_frame section for unwinding info */ - if (!read_unwind_spec_debug_frame(map->dso, ui->machine, &segbase)) { + if (ret < 0 && + !read_unwind_spec_debug_frame(map->dso, ui->machine, &segbase)) { int fd = dso__data_get_fd(map->dso, ui->machine); int is_exec = elf_is_exec(fd, map->dso->name); unw_word_t base = is_exec ? 0 : map->start; + const char *symfile; if (fd >= 0) dso__data_put_fd(map->dso); + symfile = map->dso->symsrc_filename ?: map->dso->name; + memset(&di, 0, sizeof(di)); - if (dwarf_find_debug_frame(0, &di, ip, base, map->dso->name, + if (dwarf_find_debug_frame(0, &di, ip, base, symfile, map->start, map->end)) return dwarf_search_unwind_table(as, ip, &di, pi, need_unwind_info, arg); } #endif - return -EINVAL; + return ret; } static int access_fpreg(unw_addr_space_t __maybe_unused as, @@ -461,7 +466,7 @@ static int access_mem(unw_addr_space_t __maybe_unused as, if (ret) { pr_debug("unwind: access_mem %p not inside range" " 0x%" PRIx64 "-0x%" PRIx64 "\n", - (void *) addr, start, end); + (void *) (uintptr_t) addr, start, end); *valp = 0; return ret; } @@ -471,7 +476,7 @@ static int access_mem(unw_addr_space_t __maybe_unused as, offset = addr - start; *valp = *(unw_word_t *)&stack->data[offset]; pr_debug("unwind: access_mem addr %p val %lx, offset %d\n", - (void *) addr, (unsigned long)*valp, offset); + (void *) (uintptr_t) addr, (unsigned long)*valp, offset); return 0; } diff --git a/tools/perf/util/usage.c b/tools/perf/util/usage.c index 4007aca8e..6adfa18cd 100644 --- a/tools/perf/util/usage.c +++ b/tools/perf/util/usage.c @@ -50,6 +50,11 @@ void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN) die_routine = routine; } +void set_warning_routine(void (*routine)(const char *err, va_list params)) +{ + warn_routine = routine; +} + void usage(const char *err) { usage_routine(err); diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index c2cd9bf23..47b1e36c7 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -3,6 +3,7 @@ #include "debug.h" #include <api/fs/fs.h> #include <sys/mman.h> +#include <sys/utsname.h> #ifdef HAVE_BACKTRACE_SUPPORT #include <execinfo.h> #endif @@ -17,7 +18,7 @@ #include "callchain.h" struct callchain_param callchain_param = { - .mode = CHAIN_GRAPH_REL, + .mode = CHAIN_GRAPH_ABS, .min_percent = 0.5, .order = ORDER_CALLEE, .key = CCKEY_FUNCTION @@ -34,9 +35,6 @@ bool test_attr__enabled; bool perf_host = true; bool perf_guest = false; -char tracing_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing"; -char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events"; - void event_attr_init(struct perf_event_attr *attr) { if (!perf_host) @@ -390,73 +388,6 @@ void set_term_quiet_input(struct termios *old) tcsetattr(0, TCSANOW, &tc); } -static void set_tracing_events_path(const char *tracing, const char *mountpoint) -{ - snprintf(tracing_path, sizeof(tracing_path), "%s/%s", - mountpoint, tracing); - snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s%s", - mountpoint, tracing, "events"); -} - -static const char *__perf_tracefs_mount(const char *mountpoint) -{ - const char *mnt; - - mnt = tracefs_mount(mountpoint); - if (!mnt) - return NULL; - - set_tracing_events_path("", mnt); - - return mnt; -} - -static const char *__perf_debugfs_mount(const char *mountpoint) -{ - const char *mnt; - - mnt = debugfs_mount(mountpoint); - if (!mnt) - return NULL; - - set_tracing_events_path("tracing/", mnt); - - return mnt; -} - -const char *perf_debugfs_mount(const char *mountpoint) -{ - const char *mnt; - - mnt = __perf_tracefs_mount(mountpoint); - if (mnt) - return mnt; - - mnt = __perf_debugfs_mount(mountpoint); - - return mnt; -} - -void perf_debugfs_set_path(const char *mntpt) -{ - set_tracing_events_path("tracing/", mntpt); -} - -char *get_tracing_file(const char *name) -{ - char *file; - - if (asprintf(&file, "%s/%s", tracing_path, name) < 0) - return NULL; - - return file; -} - -void put_tracing_file(char *file) -{ - free(file); -} - int parse_nsec_time(const char *str, u64 *ptime) { u64 time_sec, time_nsec; @@ -735,3 +666,32 @@ bool find_process(const char *name) closedir(dir); return ret ? false : true; } + +int +fetch_kernel_version(unsigned int *puint, char *str, + size_t str_size) +{ + struct utsname utsname; + int version, patchlevel, sublevel, err; + + if (uname(&utsname)) + return -1; + + if (str && str_size) { + strncpy(str, utsname.release, str_size); + str[str_size - 1] = '\0'; + } + + err = sscanf(utsname.release, "%d.%d.%d", + &version, &patchlevel, &sublevel); + + if (err != 3) { + pr_debug("Unablt to get kernel version from uname '%s'\n", + utsname.release); + return -1; + } + + if (puint) + *puint = (version << 16) + (patchlevel << 8) + sublevel; + return 0; +} diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index 291be1d84..dcc659017 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -74,8 +74,7 @@ #include <linux/magic.h> #include <linux/types.h> #include <sys/ttydefaults.h> -#include <api/fs/debugfs.h> -#include <api/fs/tracefs.h> +#include <api/fs/tracing_path.h> #include <termios.h> #include <linux/bitops.h> #include <termios.h> @@ -83,12 +82,6 @@ extern const char *graph_line; extern const char *graph_dotted_line; extern char buildid_dir[]; -extern char tracing_path[]; -extern char tracing_events_path[]; -extern void perf_debugfs_set_path(const char *mountpoint); -const char *perf_debugfs_mount(const char *mountpoint); -char *get_tracing_file(const char *name); -void put_tracing_file(char *file); /* On most systems <limits.h> would have given us this, but * not on some systems (e.g. GNU/Hurd). @@ -152,6 +145,7 @@ extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2))) extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN); +extern void set_warning_routine(void (*routine)(const char *err, va_list params)); extern int prefixcmp(const char *str, const char *prefix); extern void set_buildid_dir(const char *dir); @@ -321,6 +315,8 @@ struct symbol; extern bool srcline_full_filename; char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym, bool show_sym); +char *__get_srcline(struct dso *dso, u64 addr, struct symbol *sym, + bool show_sym, bool unwind_inlines); void free_srcline(char *srcline); int filename__read_str(const char *filename, char **buf, size_t *sizep); @@ -354,4 +350,12 @@ static inline char *asprintf_expr_not_in_ints(const char *var, size_t nints, int int get_stack_size(const char *str, unsigned long *_size); +int fetch_kernel_version(unsigned int *puint, + char *str, size_t str_sz); +#define KVER_VERSION(x) (((x) >> 16) & 0xff) +#define KVER_PATCHLEVEL(x) (((x) >> 8) & 0xff) +#define KVER_SUBLEVEL(x) ((x) & 0xff) +#define KVER_FMT "%d.%d.%d" +#define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x) + #endif /* GIT_COMPAT_UTIL_H */ diff --git a/tools/power/acpi/tools/acpidump/apfiles.c b/tools/power/acpi/tools/acpidump/apfiles.c index a37f9702b..a1c62de42 100644 --- a/tools/power/acpi/tools/acpidump/apfiles.c +++ b/tools/power/acpi/tools/acpidump/apfiles.c @@ -150,7 +150,7 @@ int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance) strcat(filename, instance_str); } - strcat(filename, ACPI_TABLE_FILE_SUFFIX); + strcat(filename, FILE_SUFFIX_BINARY_TABLE); if (gbl_verbose_mode) { acpi_log_error diff --git a/tools/power/cpupower/debug/i386/dump_psb.c b/tools/power/cpupower/debug/i386/dump_psb.c index 8d6a47514..2c768cf70 100644 --- a/tools/power/cpupower/debug/i386/dump_psb.c +++ b/tools/power/cpupower/debug/i386/dump_psb.c @@ -134,7 +134,7 @@ next_one: } static struct option info_opts[] = { - {.name = "numpst", .has_arg=no_argument, .flag=NULL, .val='n'}, + {"numpst", no_argument, NULL, 'n'}, }; void print_help(void) diff --git a/tools/power/cpupower/man/cpupower-idle-set.1 b/tools/power/cpupower/man/cpupower-idle-set.1 index 3e6799d7a..580c4e3ea 100644 --- a/tools/power/cpupower/man/cpupower-idle-set.1 +++ b/tools/power/cpupower/man/cpupower-idle-set.1 @@ -20,7 +20,9 @@ Disable a specific processor sleep state. Enable a specific processor sleep state. .TP \fB\-D\fR \fB\-\-disable-by-latency\fR <LATENCY> -Disable all idle states with a equal or higher latency than <LATENCY> +Disable all idle states with a equal or higher latency than <LATENCY>. + +Enable all idle states with a latency lower than <LATENCY>. .TP \fB\-E\fR \fB\-\-enable-all\fR Enable all idle states if not enabled already. diff --git a/tools/power/cpupower/utils/cpufreq-info.c b/tools/power/cpupower/utils/cpufreq-info.c index b4b90a976..0e6764330 100644 --- a/tools/power/cpupower/utils/cpufreq-info.c +++ b/tools/power/cpupower/utils/cpufreq-info.c @@ -536,21 +536,21 @@ static int get_latency(unsigned int cpu, unsigned int human) } static struct option info_opts[] = { - { .name = "debug", .has_arg = no_argument, .flag = NULL, .val = 'e'}, - { .name = "boost", .has_arg = no_argument, .flag = NULL, .val = 'b'}, - { .name = "freq", .has_arg = no_argument, .flag = NULL, .val = 'f'}, - { .name = "hwfreq", .has_arg = no_argument, .flag = NULL, .val = 'w'}, - { .name = "hwlimits", .has_arg = no_argument, .flag = NULL, .val = 'l'}, - { .name = "driver", .has_arg = no_argument, .flag = NULL, .val = 'd'}, - { .name = "policy", .has_arg = no_argument, .flag = NULL, .val = 'p'}, - { .name = "governors", .has_arg = no_argument, .flag = NULL, .val = 'g'}, - { .name = "related-cpus", .has_arg = no_argument, .flag = NULL, .val = 'r'}, - { .name = "affected-cpus",.has_arg = no_argument, .flag = NULL, .val = 'a'}, - { .name = "stats", .has_arg = no_argument, .flag = NULL, .val = 's'}, - { .name = "latency", .has_arg = no_argument, .flag = NULL, .val = 'y'}, - { .name = "proc", .has_arg = no_argument, .flag = NULL, .val = 'o'}, - { .name = "human", .has_arg = no_argument, .flag = NULL, .val = 'm'}, - { .name = "no-rounding", .has_arg = no_argument, .flag = NULL, .val = 'n'}, + {"debug", no_argument, NULL, 'e'}, + {"boost", no_argument, NULL, 'b'}, + {"freq", no_argument, NULL, 'f'}, + {"hwfreq", no_argument, NULL, 'w'}, + {"hwlimits", no_argument, NULL, 'l'}, + {"driver", no_argument, NULL, 'd'}, + {"policy", no_argument, NULL, 'p'}, + {"governors", no_argument, NULL, 'g'}, + {"related-cpus", no_argument, NULL, 'r'}, + {"affected-cpus", no_argument, NULL, 'a'}, + {"stats", no_argument, NULL, 's'}, + {"latency", no_argument, NULL, 'y'}, + {"proc", no_argument, NULL, 'o'}, + {"human", no_argument, NULL, 'm'}, + {"no-rounding", no_argument, NULL, 'n'}, { }, }; diff --git a/tools/power/cpupower/utils/cpufreq-set.c b/tools/power/cpupower/utils/cpufreq-set.c index 4e2135763..0fbd1a22c 100644 --- a/tools/power/cpupower/utils/cpufreq-set.c +++ b/tools/power/cpupower/utils/cpufreq-set.c @@ -22,11 +22,11 @@ #define NORM_FREQ_LEN 32 static struct option set_opts[] = { - { .name = "min", .has_arg = required_argument, .flag = NULL, .val = 'd'}, - { .name = "max", .has_arg = required_argument, .flag = NULL, .val = 'u'}, - { .name = "governor", .has_arg = required_argument, .flag = NULL, .val = 'g'}, - { .name = "freq", .has_arg = required_argument, .flag = NULL, .val = 'f'}, - { .name = "related", .has_arg = no_argument, .flag = NULL, .val='r'}, + {"min", required_argument, NULL, 'd'}, + {"max", required_argument, NULL, 'u'}, + {"governor", required_argument, NULL, 'g'}, + {"freq", required_argument, NULL, 'f'}, + {"related", no_argument, NULL, 'r'}, { }, }; diff --git a/tools/power/cpupower/utils/cpuidle-info.c b/tools/power/cpupower/utils/cpuidle-info.c index 75e66de7e..750c1d82c 100644 --- a/tools/power/cpupower/utils/cpuidle-info.c +++ b/tools/power/cpupower/utils/cpuidle-info.c @@ -126,8 +126,8 @@ static void proc_cpuidle_cpu_output(unsigned int cpu) } static struct option info_opts[] = { - { .name = "silent", .has_arg = no_argument, .flag = NULL, .val = 's'}, - { .name = "proc", .has_arg = no_argument, .flag = NULL, .val = 'o'}, + {"silent", no_argument, NULL, 's'}, + {"proc", no_argument, NULL, 'o'}, { }, }; diff --git a/tools/power/cpupower/utils/cpuidle-set.c b/tools/power/cpupower/utils/cpuidle-set.c index d45d8d775..d6b6ae44b 100644 --- a/tools/power/cpupower/utils/cpuidle-set.c +++ b/tools/power/cpupower/utils/cpuidle-set.c @@ -13,15 +13,11 @@ #include "helpers/sysfs.h" static struct option info_opts[] = { - { .name = "disable", - .has_arg = required_argument, .flag = NULL, .val = 'd'}, - { .name = "enable", - .has_arg = required_argument, .flag = NULL, .val = 'e'}, - { .name = "disable-by-latency", - .has_arg = required_argument, .flag = NULL, .val = 'D'}, - { .name = "enable-all", - .has_arg = no_argument, .flag = NULL, .val = 'E'}, - { }, + {"disable", required_argument, NULL, 'd'}, + {"enable", required_argument, NULL, 'e'}, + {"disable-by-latency", required_argument, NULL, 'D'}, + {"enable-all", no_argument, NULL, 'E'}, + { }, }; @@ -148,14 +144,21 @@ int cmd_idle_set(int argc, char **argv) (cpu, idlestate); state_latency = sysfs_get_idlestate_latency (cpu, idlestate); - printf("CPU: %u - idlestate %u - state_latency: %llu - latency: %llu\n", - cpu, idlestate, state_latency, latency); - if (disabled == 1 || latency > state_latency) + if (disabled == 1) { + if (latency > state_latency){ + ret = sysfs_idlestate_disable + (cpu, idlestate, 0); + if (ret == 0) + printf(_("Idlestate %u enabled on CPU %u\n"), idlestate, cpu); + } continue; - ret = sysfs_idlestate_disable - (cpu, idlestate, 1); - if (ret == 0) + } + if (latency <= state_latency){ + ret = sysfs_idlestate_disable + (cpu, idlestate, 1); + if (ret == 0) printf(_("Idlestate %u disabled on CPU %u\n"), idlestate, cpu); + } } break; case 'E': diff --git a/tools/power/cpupower/utils/cpupower-info.c b/tools/power/cpupower/utils/cpupower-info.c index 136d979e9..10299f2e9 100644 --- a/tools/power/cpupower/utils/cpupower-info.c +++ b/tools/power/cpupower/utils/cpupower-info.c @@ -17,8 +17,8 @@ #include "helpers/sysfs.h" static struct option set_opts[] = { - { .name = "perf-bias", .has_arg = optional_argument, .flag = NULL, .val = 'b'}, - { }, + {"perf-bias", optional_argument, NULL, 'b'}, + { }, }; static void print_wrong_arg_exit(void) diff --git a/tools/power/cpupower/utils/cpupower-set.c b/tools/power/cpupower/utils/cpupower-set.c index 573c75f8e..3e6f374f8 100644 --- a/tools/power/cpupower/utils/cpupower-set.c +++ b/tools/power/cpupower/utils/cpupower-set.c @@ -18,7 +18,7 @@ #include "helpers/bitmask.h" static struct option set_opts[] = { - { .name = "perf-bias", .has_arg = required_argument, .flag = NULL, .val = 'b'}, + {"perf-bias", required_argument, NULL, 'b'}, { }, }; diff --git a/tools/power/cpupower/utils/helpers/topology.c b/tools/power/cpupower/utils/helpers/topology.c index cea398c17..9cbb7fd75 100644 --- a/tools/power/cpupower/utils/helpers/topology.c +++ b/tools/power/cpupower/utils/helpers/topology.c @@ -73,18 +73,22 @@ int get_cpu_topology(struct cpupower_topology *cpu_top) for (cpu = 0; cpu < cpus; cpu++) { cpu_top->core_info[cpu].cpu = cpu; cpu_top->core_info[cpu].is_online = sysfs_is_cpu_online(cpu); - if (!cpu_top->core_info[cpu].is_online) - continue; if(sysfs_topology_read_file( cpu, "physical_package_id", - &(cpu_top->core_info[cpu].pkg)) < 0) - return -1; + &(cpu_top->core_info[cpu].pkg)) < 0) { + cpu_top->core_info[cpu].pkg = -1; + cpu_top->core_info[cpu].core = -1; + continue; + } if(sysfs_topology_read_file( cpu, "core_id", - &(cpu_top->core_info[cpu].core)) < 0) - return -1; + &(cpu_top->core_info[cpu].core)) < 0) { + cpu_top->core_info[cpu].pkg = -1; + cpu_top->core_info[cpu].core = -1; + continue; + } } qsort(cpu_top->core_info, cpus, sizeof(struct cpuid_core_info), @@ -95,12 +99,15 @@ int get_cpu_topology(struct cpupower_topology *cpu_top) done by pkg value. */ last_pkg = cpu_top->core_info[0].pkg; for(cpu = 1; cpu < cpus; cpu++) { - if(cpu_top->core_info[cpu].pkg != last_pkg) { + if (cpu_top->core_info[cpu].pkg != last_pkg && + cpu_top->core_info[cpu].pkg != -1) { + last_pkg = cpu_top->core_info[cpu].pkg; cpu_top->pkgs++; } } - cpu_top->pkgs++; + if (!cpu_top->core_info[0].pkg == -1) + cpu_top->pkgs++; /* Intel's cores count is not consecutively numbered, there may * be a core_id of 3, but none of 2. Assume there always is 0 diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c index c4bae9203..05f953f0f 100644 --- a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c +++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c @@ -143,6 +143,9 @@ void print_results(int topology_depth, int cpu) /* Be careful CPUs may got resorted for pkg value do not just use cpu */ if (!bitmask_isbitset(cpus_chosen, cpu_top.core_info[cpu].cpu)) return; + if (!cpu_top.core_info[cpu].is_online && + cpu_top.core_info[cpu].pkg == -1) + return; if (topology_depth > 2) printf("%4d|", cpu_top.core_info[cpu].pkg); @@ -191,7 +194,8 @@ void print_results(int topology_depth, int cpu) * It's up to the monitor plug-in to check .is_online, this one * is just for additional info. */ - if (!cpu_top.core_info[cpu].is_online) { + if (!cpu_top.core_info[cpu].is_online && + cpu_top.core_info[cpu].pkg != -1) { printf(_(" *is offline\n")); return; } else @@ -388,6 +392,9 @@ int cmd_monitor(int argc, char **argv) return EXIT_FAILURE; } + if (!cpu_top.core_info[0].is_online) + printf("WARNING: at least one cpu is offline\n"); + /* Default is: monitor all CPUs */ if (bitmask_isallclear(cpus_chosen)) bitmask_setall(cpus_chosen); diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index bde0ef1a6..0dac7e05a 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -75,6 +75,7 @@ unsigned int aperf_mperf_multiplier = 1; int do_smi; double bclk; double base_hz; +unsigned int has_base_hz; double tsc_tweak = 1.0; unsigned int show_pkg; unsigned int show_core; @@ -96,6 +97,7 @@ unsigned int do_ring_perf_limit_reasons; unsigned int crystal_hz; unsigned long long tsc_hz; int base_cpu; +double discover_bclk(unsigned int family, unsigned int model); #define RAPL_PKG (1 << 0) /* 0x610 MSR_PKG_POWER_LIMIT */ @@ -511,9 +513,13 @@ int format_counters(struct thread_data *t, struct core_data *c, } /* Bzy_MHz */ - if (has_aperf) - outp += sprintf(outp, "%8.0f", - 1.0 * t->tsc * tsc_tweak / units * t->aperf / t->mperf / interval_float); + if (has_aperf) { + if (has_base_hz) + outp += sprintf(outp, "%8.0f", base_hz / units * t->aperf / t->mperf); + else + outp += sprintf(outp, "%8.0f", + 1.0 * t->tsc / units * t->aperf / t->mperf / interval_float); + } /* TSC_MHz */ outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float); @@ -1158,12 +1164,6 @@ int phi_pkg_cstate_limits[16] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCLRSV, PCLRSV, static void calculate_tsc_tweak() { - unsigned long long msr; - unsigned int base_ratio; - - get_msr(base_cpu, MSR_NHM_PLATFORM_INFO, &msr); - base_ratio = (msr >> 8) & 0xFF; - base_hz = base_ratio * bclk * 1000000; tsc_tweak = base_hz / tsc_hz; } @@ -1173,9 +1173,9 @@ dump_nhm_platform_info(void) unsigned long long msr; unsigned int ratio; - get_msr(base_cpu, MSR_NHM_PLATFORM_INFO, &msr); + get_msr(base_cpu, MSR_PLATFORM_INFO, &msr); - fprintf(stderr, "cpu%d: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", base_cpu, msr); + fprintf(stderr, "cpu%d: MSR_PLATFORM_INFO: 0x%08llx\n", base_cpu, msr); ratio = (msr >> 40) & 0xFF; fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency frequency\n", @@ -1440,7 +1440,7 @@ dump_config_tdp(void) get_msr(base_cpu, MSR_TURBO_ACTIVATION_RATIO, &msr); fprintf(stderr, "cpu%d: MSR_TURBO_ACTIVATION_RATIO: 0x%08llx (", base_cpu, msr); - fprintf(stderr, "MAX_NON_TURBO_RATIO=%d", (unsigned int)(msr) & 0xEF); + fprintf(stderr, "MAX_NON_TURBO_RATIO=%d", (unsigned int)(msr) & 0x7F); fprintf(stderr, " lock=%d", (unsigned int)(msr >> 31) & 1); fprintf(stderr, ")\n"); } @@ -1807,7 +1807,7 @@ void check_permissions() * * MSR_SMI_COUNT 0x00000034 * - * MSR_NHM_PLATFORM_INFO 0x000000ce + * MSR_PLATFORM_INFO 0x000000ce * MSR_NHM_SNB_PKG_CST_CFG_CTL 0x000000e2 * * MSR_PKG_C3_RESIDENCY 0x000003f8 @@ -1821,6 +1821,7 @@ void check_permissions() int probe_nhm_msrs(unsigned int family, unsigned int model) { unsigned long long msr; + unsigned int base_ratio; int *pkg_cstate_limits; if (!genuine_intel) @@ -1829,6 +1830,8 @@ int probe_nhm_msrs(unsigned int family, unsigned int model) if (family != 6) return 0; + bclk = discover_bclk(family, model); + switch (model) { case 0x1A: /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */ case 0x1E: /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */ @@ -1871,9 +1874,13 @@ int probe_nhm_msrs(unsigned int family, unsigned int model) return 0; } get_msr(base_cpu, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr); - pkg_cstate_limit = pkg_cstate_limits[msr & 0xF]; + get_msr(base_cpu, MSR_PLATFORM_INFO, &msr); + base_ratio = (msr >> 8) & 0xFF; + + base_hz = base_ratio * bclk * 1000000; + has_base_hz = 1; return 1; } int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model) @@ -2780,7 +2787,6 @@ void process_cpuid() do_skl_residency = has_skl_msrs(family, model); do_slm_cstates = is_slm(family, model); do_knl_cstates = is_knl(family, model); - bclk = discover_bclk(family, model); rapl_probe(family, model); perf_limit_reasons_probe(family, model); diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index 021e6f97f..51cf8256c 100644 --- a/tools/testing/nvdimm/test/nfit.c +++ b/tools/testing/nvdimm/test/nfit.c @@ -17,8 +17,10 @@ #include <linux/vmalloc.h> #include <linux/device.h> #include <linux/module.h> +#include <linux/mutex.h> #include <linux/ndctl.h> #include <linux/sizes.h> +#include <linux/list.h> #include <linux/slab.h> #include <nfit.h> #include <nd.h> @@ -44,6 +46,15 @@ * +------+ | blk5.0 | pm1.0 | 3 region5 * +-------------------------+----------+-+-------+ * + * +--+---+ + * | cpu1 | + * +--+---+ (Hotplug DIMM) + * | +----------------------------------------------+ + * +--+---+ | blk6.0/pm7.0 | 4 region6/7 + * | imc0 +--+----------------------------------------------+ + * +------+ + * + * * *) In this layout we have four dimms and two memory controllers in one * socket. Each unique interface (BLK or PMEM) to DPA space * is identified by a region device with a dynamically assigned id. @@ -85,8 +96,8 @@ * reference an NVDIMM. */ enum { - NUM_PM = 2, - NUM_DCR = 4, + NUM_PM = 3, + NUM_DCR = 5, NUM_BDW = NUM_DCR, NUM_SPA = NUM_PM + NUM_DCR + NUM_BDW, NUM_MEM = NUM_DCR + NUM_BDW + 2 /* spa0 iset */ + 4 /* spa1 iset */, @@ -115,6 +126,7 @@ static u32 handle[NUM_DCR] = { [1] = NFIT_DIMM_HANDLE(0, 0, 0, 0, 1), [2] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 0), [3] = NFIT_DIMM_HANDLE(0, 0, 1, 0, 1), + [4] = NFIT_DIMM_HANDLE(0, 1, 0, 0, 0), }; struct nfit_test { @@ -138,6 +150,7 @@ struct nfit_test { dma_addr_t *dcr_dma; int (*alloc)(struct nfit_test *t); void (*setup)(struct nfit_test *t); + int setup_hotplug; }; static struct nfit_test *to_nfit_test(struct device *dev) @@ -407,8 +420,7 @@ static struct nfit_test_resource *nfit_test_lookup(resource_size_t addr) static int nfit_test0_alloc(struct nfit_test *t) { - size_t nfit_size = sizeof(struct acpi_table_nfit) - + sizeof(struct acpi_nfit_system_address) * NUM_SPA + size_t nfit_size = sizeof(struct acpi_nfit_system_address) * NUM_SPA + sizeof(struct acpi_nfit_memory_map) * NUM_MEM + sizeof(struct acpi_nfit_control_region) * NUM_DCR + sizeof(struct acpi_nfit_data_region) * NUM_BDW @@ -428,6 +440,10 @@ static int nfit_test0_alloc(struct nfit_test *t) if (!t->spa_set[1]) return -ENOMEM; + t->spa_set[2] = test_alloc_coherent(t, SPA0_SIZE, &t->spa_set_dma[2]); + if (!t->spa_set[2]) + return -ENOMEM; + for (i = 0; i < NUM_DCR; i++) { t->dimm[i] = test_alloc(t, DIMM_SIZE, &t->dimm_dma[i]); if (!t->dimm[i]) @@ -454,8 +470,7 @@ static int nfit_test0_alloc(struct nfit_test *t) static int nfit_test1_alloc(struct nfit_test *t) { - size_t nfit_size = sizeof(struct acpi_table_nfit) - + sizeof(struct acpi_nfit_system_address) + size_t nfit_size = sizeof(struct acpi_nfit_system_address) + sizeof(struct acpi_nfit_memory_map) + sizeof(struct acpi_nfit_control_region); @@ -471,39 +486,24 @@ static int nfit_test1_alloc(struct nfit_test *t) return 0; } -static void nfit_test_init_header(struct acpi_table_nfit *nfit, size_t size) -{ - memcpy(nfit->header.signature, ACPI_SIG_NFIT, 4); - nfit->header.length = size; - nfit->header.revision = 1; - memcpy(nfit->header.oem_id, "LIBND", 6); - memcpy(nfit->header.oem_table_id, "TEST", 5); - nfit->header.oem_revision = 1; - memcpy(nfit->header.asl_compiler_id, "TST", 4); - nfit->header.asl_compiler_revision = 1; -} - static void nfit_test0_setup(struct nfit_test *t) { struct nvdimm_bus_descriptor *nd_desc; struct acpi_nfit_desc *acpi_desc; struct acpi_nfit_memory_map *memdev; void *nfit_buf = t->nfit_buf; - size_t size = t->nfit_size; struct acpi_nfit_system_address *spa; struct acpi_nfit_control_region *dcr; struct acpi_nfit_data_region *bdw; struct acpi_nfit_flush_address *flush; unsigned int offset; - nfit_test_init_header(nfit_buf, size); - /* * spa0 (interleave first half of dimm0 and dimm1, note storage * does not actually alias the related block-data-window * regions) */ - spa = nfit_buf + sizeof(struct acpi_table_nfit); + spa = nfit_buf; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16); @@ -516,7 +516,7 @@ static void nfit_test0_setup(struct nfit_test *t) * does not actually alias the related block-data-window * regions) */ - spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa); + spa = nfit_buf + sizeof(*spa); spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16); @@ -525,7 +525,7 @@ static void nfit_test0_setup(struct nfit_test *t) spa->length = SPA1_SIZE; /* spa2 (dcr0) dimm0 */ - spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 2; + spa = nfit_buf + sizeof(*spa) * 2; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); @@ -534,7 +534,7 @@ static void nfit_test0_setup(struct nfit_test *t) spa->length = DCR_SIZE; /* spa3 (dcr1) dimm1 */ - spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 3; + spa = nfit_buf + sizeof(*spa) * 3; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); @@ -543,7 +543,7 @@ static void nfit_test0_setup(struct nfit_test *t) spa->length = DCR_SIZE; /* spa4 (dcr2) dimm2 */ - spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 4; + spa = nfit_buf + sizeof(*spa) * 4; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); @@ -552,7 +552,7 @@ static void nfit_test0_setup(struct nfit_test *t) spa->length = DCR_SIZE; /* spa5 (dcr3) dimm3 */ - spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 5; + spa = nfit_buf + sizeof(*spa) * 5; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); @@ -561,7 +561,7 @@ static void nfit_test0_setup(struct nfit_test *t) spa->length = DCR_SIZE; /* spa6 (bdw for dcr0) dimm0 */ - spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 6; + spa = nfit_buf + sizeof(*spa) * 6; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); @@ -570,7 +570,7 @@ static void nfit_test0_setup(struct nfit_test *t) spa->length = DIMM_SIZE; /* spa7 (bdw for dcr1) dimm1 */ - spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 7; + spa = nfit_buf + sizeof(*spa) * 7; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); @@ -579,7 +579,7 @@ static void nfit_test0_setup(struct nfit_test *t) spa->length = DIMM_SIZE; /* spa8 (bdw for dcr2) dimm2 */ - spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 8; + spa = nfit_buf + sizeof(*spa) * 8; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); @@ -588,7 +588,7 @@ static void nfit_test0_setup(struct nfit_test *t) spa->length = DIMM_SIZE; /* spa9 (bdw for dcr3) dimm3 */ - spa = nfit_buf + sizeof(struct acpi_table_nfit) + sizeof(*spa) * 9; + spa = nfit_buf + sizeof(*spa) * 9; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; spa->header.length = sizeof(*spa); memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); @@ -596,7 +596,7 @@ static void nfit_test0_setup(struct nfit_test *t) spa->address = t->dimm_dma[3]; spa->length = DIMM_SIZE; - offset = sizeof(struct acpi_table_nfit) + sizeof(*spa) * 10; + offset = sizeof(*spa) * 10; /* mem-region0 (spa0, dimm0) */ memdev = nfit_buf + offset; memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; @@ -950,6 +950,126 @@ static void nfit_test0_setup(struct nfit_test *t) flush->hint_count = 1; flush->hint_address[0] = t->flush_dma[3]; + if (t->setup_hotplug) { + offset = offset + sizeof(struct acpi_nfit_flush_address) * 4; + /* dcr-descriptor4 */ + dcr = nfit_buf + offset; + dcr->header.type = ACPI_NFIT_TYPE_CONTROL_REGION; + dcr->header.length = sizeof(struct acpi_nfit_control_region); + dcr->region_index = 4+1; + dcr->vendor_id = 0xabcd; + dcr->device_id = 0; + dcr->revision_id = 1; + dcr->serial_number = ~handle[4]; + dcr->windows = 1; + dcr->window_size = DCR_SIZE; + dcr->command_offset = 0; + dcr->command_size = 8; + dcr->status_offset = 8; + dcr->status_size = 4; + + offset = offset + sizeof(struct acpi_nfit_control_region); + /* bdw4 (spa/dcr4, dimm4) */ + bdw = nfit_buf + offset; + bdw->header.type = ACPI_NFIT_TYPE_DATA_REGION; + bdw->header.length = sizeof(struct acpi_nfit_data_region); + bdw->region_index = 4+1; + bdw->windows = 1; + bdw->offset = 0; + bdw->size = BDW_SIZE; + bdw->capacity = DIMM_SIZE; + bdw->start_address = 0; + + offset = offset + sizeof(struct acpi_nfit_data_region); + /* spa10 (dcr4) dimm4 */ + spa = nfit_buf + offset; + spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; + spa->header.length = sizeof(*spa); + memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_DCR), 16); + spa->range_index = 10+1; + spa->address = t->dcr_dma[4]; + spa->length = DCR_SIZE; + + /* + * spa11 (single-dimm interleave for hotplug, note storage + * does not actually alias the related block-data-window + * regions) + */ + spa = nfit_buf + offset + sizeof(*spa); + spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; + spa->header.length = sizeof(*spa); + memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_PM), 16); + spa->range_index = 11+1; + spa->address = t->spa_set_dma[2]; + spa->length = SPA0_SIZE; + + /* spa12 (bdw for dcr4) dimm4 */ + spa = nfit_buf + offset + sizeof(*spa) * 2; + spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; + spa->header.length = sizeof(*spa); + memcpy(spa->range_guid, to_nfit_uuid(NFIT_SPA_BDW), 16); + spa->range_index = 12+1; + spa->address = t->dimm_dma[4]; + spa->length = DIMM_SIZE; + + offset = offset + sizeof(*spa) * 3; + /* mem-region14 (spa/dcr4, dimm4) */ + memdev = nfit_buf + offset; + memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; + memdev->header.length = sizeof(*memdev); + memdev->device_handle = handle[4]; + memdev->physical_id = 4; + memdev->region_id = 0; + memdev->range_index = 10+1; + memdev->region_index = 4+1; + memdev->region_size = 0; + memdev->region_offset = 0; + memdev->address = 0; + memdev->interleave_index = 0; + memdev->interleave_ways = 1; + + /* mem-region15 (spa0, dimm4) */ + memdev = nfit_buf + offset + + sizeof(struct acpi_nfit_memory_map); + memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; + memdev->header.length = sizeof(*memdev); + memdev->device_handle = handle[4]; + memdev->physical_id = 4; + memdev->region_id = 0; + memdev->range_index = 11+1; + memdev->region_index = 4+1; + memdev->region_size = SPA0_SIZE; + memdev->region_offset = t->spa_set_dma[2]; + memdev->address = 0; + memdev->interleave_index = 0; + memdev->interleave_ways = 1; + + /* mem-region16 (spa/dcr4, dimm4) */ + memdev = nfit_buf + offset + + sizeof(struct acpi_nfit_memory_map) * 2; + memdev->header.type = ACPI_NFIT_TYPE_MEMORY_MAP; + memdev->header.length = sizeof(*memdev); + memdev->device_handle = handle[4]; + memdev->physical_id = 4; + memdev->region_id = 0; + memdev->range_index = 12+1; + memdev->region_index = 4+1; + memdev->region_size = 0; + memdev->region_offset = 0; + memdev->address = 0; + memdev->interleave_index = 0; + memdev->interleave_ways = 1; + + offset = offset + sizeof(struct acpi_nfit_memory_map) * 3; + /* flush3 (dimm4) */ + flush = nfit_buf + offset; + flush->header.type = ACPI_NFIT_TYPE_FLUSH_ADDRESS; + flush->header.length = sizeof(struct acpi_nfit_flush_address); + flush->device_handle = handle[4]; + flush->hint_count = 1; + flush->hint_address[0] = t->flush_dma[4]; + } + acpi_desc = &t->acpi_desc; set_bit(ND_CMD_GET_CONFIG_SIZE, &acpi_desc->dimm_dsm_force_en); set_bit(ND_CMD_GET_CONFIG_DATA, &acpi_desc->dimm_dsm_force_en); @@ -963,15 +1083,13 @@ static void nfit_test0_setup(struct nfit_test *t) static void nfit_test1_setup(struct nfit_test *t) { - size_t size = t->nfit_size, offset; + size_t offset; void *nfit_buf = t->nfit_buf; struct acpi_nfit_memory_map *memdev; struct acpi_nfit_control_region *dcr; struct acpi_nfit_system_address *spa; - nfit_test_init_header(nfit_buf, size); - - offset = sizeof(struct acpi_table_nfit); + offset = 0; /* spa0 (flat range with no bdw aliasing) */ spa = nfit_buf + offset; spa->header.type = ACPI_NFIT_TYPE_SYSTEM_ADDRESS; @@ -998,7 +1116,7 @@ static void nfit_test1_setup(struct nfit_test *t) memdev->interleave_ways = 1; memdev->flags = ACPI_NFIT_MEM_SAVE_FAILED | ACPI_NFIT_MEM_RESTORE_FAILED | ACPI_NFIT_MEM_FLUSH_FAILED | ACPI_NFIT_MEM_HEALTH_OBSERVED - | ACPI_NFIT_MEM_ARMED; + | ACPI_NFIT_MEM_NOT_ARMED; offset += sizeof(*memdev); /* dcr-descriptor0 */ @@ -1108,6 +1226,29 @@ static int nfit_test_probe(struct platform_device *pdev) if (!acpi_desc->nvdimm_bus) return -ENXIO; + INIT_LIST_HEAD(&acpi_desc->spa_maps); + INIT_LIST_HEAD(&acpi_desc->spas); + INIT_LIST_HEAD(&acpi_desc->dcrs); + INIT_LIST_HEAD(&acpi_desc->bdws); + INIT_LIST_HEAD(&acpi_desc->idts); + INIT_LIST_HEAD(&acpi_desc->flushes); + INIT_LIST_HEAD(&acpi_desc->memdevs); + INIT_LIST_HEAD(&acpi_desc->dimms); + mutex_init(&acpi_desc->spa_map_mutex); + mutex_init(&acpi_desc->init_mutex); + + rc = acpi_nfit_init(acpi_desc, nfit_test->nfit_size); + if (rc) { + nvdimm_bus_unregister(acpi_desc->nvdimm_bus); + return rc; + } + + if (nfit_test->setup != nfit_test0_setup) + return 0; + + nfit_test->setup_hotplug = 1; + nfit_test->setup(nfit_test); + rc = acpi_nfit_init(acpi_desc, nfit_test->nfit_size); if (rc) { nvdimm_bus_unregister(acpi_desc->nvdimm_bus); diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index 8922c2155..bf4ece67a 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -7,6 +7,7 @@ TARGETS += ftrace TARGETS += futex TARGETS += kcmp TARGETS += kdbus +TARGETS += lib TARGETS += membarrier TARGETS += memfd TARGETS += memory-hotplug @@ -14,6 +15,7 @@ TARGETS += mount TARGETS += mqueue TARGETS += net TARGETS += powerpc +TARGETS += pstore TARGETS += ptrace TARGETS += seccomp TARGETS += size @@ -66,6 +68,9 @@ clean_hotplug: make -C $$TARGET clean; \ done; +run_pstore_crash: + make -C pstore run_crash + INSTALL_PATH ?= install INSTALL_PATH := $(abspath $(INSTALL_PATH)) ALL_SCRIPT := $(INSTALL_PATH)/run_kselftest.sh diff --git a/tools/testing/selftests/breakpoints/Makefile b/tools/testing/selftests/breakpoints/Makefile index d27108b4f..c0d957015 100644 --- a/tools/testing/selftests/breakpoints/Makefile +++ b/tools/testing/selftests/breakpoints/Makefile @@ -6,7 +6,7 @@ ifeq ($(ARCH),x86) TEST_PROGS := breakpoint_test endif -all: +all: $(TEST_PROGS) include ../lib.mk diff --git a/tools/testing/selftests/efivarfs/.gitignore b/tools/testing/selftests/efivarfs/.gitignore new file mode 100644 index 000000000..336184935 --- /dev/null +++ b/tools/testing/selftests/efivarfs/.gitignore @@ -0,0 +1,2 @@ +create-read +open-unlink diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc b/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc index a5a426211..c3843ed49 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc @@ -5,7 +5,7 @@ echo 0 > events/enable echo > kprobe_events -echo p:myevent do_fork > kprobe_events +echo p:myevent _do_fork > kprobe_events grep myevent kprobe_events test -d events/kprobes/myevent echo > kprobe_events diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc b/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc index d8c7bb658..74507db8b 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc @@ -5,7 +5,7 @@ echo 0 > events/enable echo > kprobe_events -echo p:myevent do_fork > kprobe_events +echo p:myevent _do_fork > kprobe_events test -d events/kprobes/myevent echo 1 > events/kprobes/myevent/enable echo > kprobe_events && exit 1 # this must fail diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc index c45ee2761..64949d4ed 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc @@ -5,7 +5,7 @@ echo 0 > events/enable echo > kprobe_events -echo 'p:testprobe do_fork $stack $stack0 +0($stack)' > kprobe_events +echo 'p:testprobe _do_fork $stack $stack0 +0($stack)' > kprobe_events grep testprobe kprobe_events test -d events/kprobes/testprobe echo 1 > events/kprobes/testprobe/enable diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc index ab41d2b29..d6f2f4965 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc @@ -6,31 +6,31 @@ grep function available_tracers || exit_unsupported # this is configurable # prepare echo nop > current_tracer -echo do_fork > set_ftrace_filter +echo _do_fork > set_ftrace_filter echo 0 > events/enable echo > kprobe_events -echo 'p:testprobe do_fork' > kprobe_events +echo 'p:testprobe _do_fork' > kprobe_events # kprobe on / ftrace off echo 1 > events/kprobes/testprobe/enable echo > trace ( echo "forked") grep testprobe trace -! grep 'do_fork <-' trace +! grep '_do_fork <-' trace # kprobe on / ftrace on echo function > current_tracer echo > trace ( echo "forked") grep testprobe trace -grep 'do_fork <-' trace +grep '_do_fork <-' trace # kprobe off / ftrace on echo 0 > events/kprobes/testprobe/enable echo > trace ( echo "forked") ! grep testprobe trace -grep 'do_fork <-' trace +grep '_do_fork <-' trace # kprobe on / ftrace on echo 1 > events/kprobes/testprobe/enable @@ -38,14 +38,14 @@ echo function > current_tracer echo > trace ( echo "forked") grep testprobe trace -grep 'do_fork <-' trace +grep '_do_fork <-' trace # kprobe on / ftrace off echo nop > current_tracer echo > trace ( echo "forked") grep testprobe trace -! grep 'do_fork <-' trace +! grep '_do_fork <-' trace # cleanup echo nop > current_tracer diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc index 31717985a..0d0954625 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc @@ -5,7 +5,7 @@ echo 0 > events/enable echo > kprobe_events -echo 'r:testprobe2 do_fork $retval' > kprobe_events +echo 'r:testprobe2 _do_fork $retval' > kprobe_events grep testprobe2 kprobe_events test -d events/kprobes/testprobe2 echo 1 > events/kprobes/testprobe2/enable diff --git a/tools/testing/selftests/futex/README b/tools/testing/selftests/futex/README index 3224a049b..0558bb9ce 100644 --- a/tools/testing/selftests/futex/README +++ b/tools/testing/selftests/futex/README @@ -27,7 +27,7 @@ o The build system shall remain as simple as possible, avoiding any archive or o Where possible, any helper functions or other package-wide code shall be implemented in header files, avoiding the need to compile intermediate object files. -o External dependendencies shall remain as minimal as possible. Currently gcc +o External dependencies shall remain as minimal as possible. Currently gcc and glibc are the only dependencies. o Tests return 0 for success and < 0 for failure. diff --git a/tools/testing/selftests/lib/Makefile b/tools/testing/selftests/lib/Makefile new file mode 100644 index 000000000..47147b968 --- /dev/null +++ b/tools/testing/selftests/lib/Makefile @@ -0,0 +1,8 @@ +# Makefile for lib/ function selftests + +# No binaries, but make sure arg-less "make" doesn't trigger "run_tests" +all: + +TEST_PROGS := printf.sh + +include ../lib.mk diff --git a/tools/testing/selftests/lib/printf.sh b/tools/testing/selftests/lib/printf.sh new file mode 100644 index 000000000..4fdc70fe6 --- /dev/null +++ b/tools/testing/selftests/lib/printf.sh @@ -0,0 +1,10 @@ +#!/bin/sh +# Runs printf infrastructure using test_printf kernel module + +if /sbin/modprobe -q test_printf; then + /sbin/modprobe -q -r test_printf + echo "printf: ok" +else + echo "printf: [FAIL]" + exit 1 +fi diff --git a/tools/testing/selftests/memfd/Makefile b/tools/testing/selftests/memfd/Makefile index 3e7eb7972..fd396ac81 100644 --- a/tools/testing/selftests/memfd/Makefile +++ b/tools/testing/selftests/memfd/Makefile @@ -4,16 +4,16 @@ CFLAGS += -I../../../../include/uapi/ CFLAGS += -I../../../../include/ CFLAGS += -I../../../../usr/include/ -all: - $(CC) $(CFLAGS) memfd_test.c -o memfd_test - TEST_PROGS := memfd_test +all: $(TEST_PROGS) + include ../lib.mk -build_fuse: - $(CC) $(CFLAGS) fuse_mnt.c `pkg-config fuse --cflags --libs` -o fuse_mnt - $(CC) $(CFLAGS) fuse_test.c -o fuse_test +build_fuse: fuse_mnt fuse_test + +fuse_mnt.o: CFLAGS += $(shell pkg-config fuse --cflags) +fuse_mnt: LDFLAGS += $(shell pkg-config fuse --libs) run_fuse: build_fuse @./run_fuse_test.sh || echo "fuse_test: [FAIL]" diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c index 0b9eafb7a..26546892c 100644 --- a/tools/testing/selftests/memfd/memfd_test.c +++ b/tools/testing/selftests/memfd/memfd_test.c @@ -15,10 +15,11 @@ #include <sys/mman.h> #include <sys/stat.h> #include <sys/syscall.h> +#include <sys/wait.h> #include <unistd.h> #define MFD_DEF_SIZE 8192 -#define STACK_SIZE 65535 +#define STACK_SIZE 65536 static int sys_memfd_create(const char *name, unsigned int flags) diff --git a/tools/testing/selftests/memfd/run_fuse_test.sh b/tools/testing/selftests/memfd/run_fuse_test.sh index 69b930e1e..69b930e1e 100644..100755 --- a/tools/testing/selftests/memfd/run_fuse_test.sh +++ b/tools/testing/selftests/memfd/run_fuse_test.sh diff --git a/tools/testing/selftests/mqueue/mq_open_tests.c b/tools/testing/selftests/mqueue/mq_open_tests.c index 9c1a5d359..e0a74bd20 100644 --- a/tools/testing/selftests/mqueue/mq_open_tests.c +++ b/tools/testing/selftests/mqueue/mq_open_tests.c @@ -31,6 +31,7 @@ #include <sys/resource.h> #include <sys/stat.h> #include <mqueue.h> +#include <error.h> static char *usage = "Usage:\n" diff --git a/tools/testing/selftests/mqueue/mq_perf_tests.c b/tools/testing/selftests/mqueue/mq_perf_tests.c index 8519e9ee9..8188f72de 100644 --- a/tools/testing/selftests/mqueue/mq_perf_tests.c +++ b/tools/testing/selftests/mqueue/mq_perf_tests.c @@ -37,6 +37,7 @@ #include <sys/stat.h> #include <mqueue.h> #include <popt.h> +#include <error.h> static char *usage = "Usage:\n" diff --git a/tools/testing/selftests/powerpc/Makefile b/tools/testing/selftests/powerpc/Makefile index 03ca2e64b..0c2706bda 100644 --- a/tools/testing/selftests/powerpc/Makefile +++ b/tools/testing/selftests/powerpc/Makefile @@ -12,7 +12,17 @@ CFLAGS := -Wall -O2 -flto -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(CUR export CFLAGS -SUB_DIRS = pmu copyloops mm tm primitives stringloops vphn switch_endian dscr +SUB_DIRS = benchmarks \ + copyloops \ + dscr \ + mm \ + pmu \ + primitives \ + stringloops \ + switch_endian \ + syscalls \ + tm \ + vphn endif diff --git a/tools/testing/selftests/powerpc/benchmarks/.gitignore b/tools/testing/selftests/powerpc/benchmarks/.gitignore new file mode 100644 index 000000000..b4709ea58 --- /dev/null +++ b/tools/testing/selftests/powerpc/benchmarks/.gitignore @@ -0,0 +1 @@ +gettimeofday diff --git a/tools/testing/selftests/powerpc/benchmarks/Makefile b/tools/testing/selftests/powerpc/benchmarks/Makefile new file mode 100644 index 000000000..5fa487020 --- /dev/null +++ b/tools/testing/selftests/powerpc/benchmarks/Makefile @@ -0,0 +1,12 @@ +TEST_PROGS := gettimeofday + +CFLAGS += -O2 + +all: $(TEST_PROGS) + +$(TEST_PROGS): ../harness.c + +include ../../lib.mk + +clean: + rm -f $(TEST_PROGS) *.o diff --git a/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c b/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c new file mode 100644 index 000000000..3af3c21e8 --- /dev/null +++ b/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c @@ -0,0 +1,31 @@ +/* + * Copyright 2015, Anton Blanchard, IBM Corp. + * Licensed under GPLv2. + */ + +#include <sys/time.h> +#include <stdio.h> + +#include "utils.h" + +static int test_gettimeofday(void) +{ + int i; + + struct timeval tv_start, tv_end; + + gettimeofday(&tv_start, NULL); + + for(i = 0; i < 100000000; i++) { + gettimeofday(&tv_end, NULL); + } + + printf("time = %.6f\n", tv_end.tv_sec - tv_start.tv_sec + (tv_end.tv_usec - tv_start.tv_usec) * 1e-6); + + return 0; +} + +int main(void) +{ + return test_harness(test_gettimeofday, "gettimeofday"); +} diff --git a/tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c b/tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c index 66ea765c0..94110b1dc 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c @@ -63,6 +63,8 @@ int back_to_back_ebbs(void) { struct event event; + SKIP_IF(!ebb_is_supported()); + event_init_named(&event, 0x1001e, "cycles"); event_leader_ebb_init(&event); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c b/tools/testing/selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c index 0f0423dba..ac18cf617 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c @@ -20,6 +20,8 @@ int close_clears_pmcc(void) { struct event event; + SKIP_IF(!ebb_is_supported()); + event_init_named(&event, 0x1001e, "cycles"); event_leader_ebb_init(&event); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c b/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c index d3ed64d5d..f0632e7fd 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c @@ -43,6 +43,8 @@ int cpu_event_pinned_vs_ebb(void) int cpu, rc; pid_t pid; + SKIP_IF(!ebb_is_supported()); + cpu = pick_online_cpu(); FAIL_IF(cpu < 0); FAIL_IF(bind_to_cpu(cpu)); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_vs_ebb_test.c b/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_vs_ebb_test.c index 8b972c2aa..33e56a234 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_vs_ebb_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_vs_ebb_test.c @@ -41,6 +41,8 @@ int cpu_event_vs_ebb(void) int cpu, rc; pid_t pid; + SKIP_IF(!ebb_is_supported()); + cpu = pick_online_cpu(); FAIL_IF(cpu < 0); FAIL_IF(bind_to_cpu(cpu)); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c b/tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c index 8590fc1bf..7c57a8d79 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c @@ -16,6 +16,8 @@ int cycles(void) { struct event event; + SKIP_IF(!ebb_is_supported()); + event_init_named(&event, 0x1001e, "cycles"); event_leader_ebb_init(&event); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c b/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c index 754b3f200..ecf5ee328 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c @@ -56,6 +56,8 @@ int cycles_with_freeze(void) uint64_t val; bool fc_cleared; + SKIP_IF(!ebb_is_supported()); + event_init_named(&event, 0x1001e, "cycles"); event_leader_ebb_init(&event); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c b/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c index d43029b08..c0faba520 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c @@ -26,6 +26,8 @@ int cycles_with_mmcr2(void) int i; bool bad_mmcr2; + SKIP_IF(!ebb_is_supported()); + event_init_named(&event, 0x1001e, "cycles"); event_leader_ebb_init(&event); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb.c b/tools/testing/selftests/powerpc/pmu/ebb/ebb.c index d7a72ce69..9729d9f90 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/ebb.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb.c @@ -13,6 +13,7 @@ #include <stdlib.h> #include <string.h> #include <sys/ioctl.h> +#include <linux/auxvec.h> #include "trace.h" #include "reg.h" @@ -319,6 +320,16 @@ void ebb_global_disable(void) mb(); } +bool ebb_is_supported(void) +{ +#ifdef PPC_FEATURE2_EBB + /* EBB requires at least POWER8 */ + return ((long)get_auxv_entry(AT_HWCAP2) & PPC_FEATURE2_EBB); +#else + return false; +#endif +} + void event_ebb_init(struct event *e) { e->attr.config |= (1ull << 63); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb.h b/tools/testing/selftests/powerpc/pmu/ebb/ebb.h index e44eee5d9..f87e761f8 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/ebb.h +++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb.h @@ -52,6 +52,7 @@ void standard_ebb_callee(void); int ebb_event_enable(struct event *e); void ebb_global_enable(void); void ebb_global_disable(void); +bool ebb_is_supported(void); void ebb_freeze_pmcs(void); void ebb_unfreeze_pmcs(void); void event_ebb_init(struct event *e); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c b/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c index c45f94814..1e7b7fe23 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c @@ -47,6 +47,8 @@ int ebb_on_child(void) struct event event; pid_t pid; + SKIP_IF(!ebb_is_supported()); + FAIL_IF(pipe(read_pipe.fds) == -1); FAIL_IF(pipe(write_pipe.fds) == -1); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c b/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c index 11acf1d55..a991d2ea8 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c @@ -54,6 +54,8 @@ int ebb_on_willing_child(void) struct event event; pid_t pid; + SKIP_IF(!ebb_is_supported()); + FAIL_IF(pipe(read_pipe.fds) == -1); FAIL_IF(pipe(write_pipe.fds) == -1); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c b/tools/testing/selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c index be4dd5a4e..af20a2b36 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c @@ -41,6 +41,8 @@ int ebb_vs_cpu_event(void) int cpu, rc; pid_t pid; + SKIP_IF(!ebb_is_supported()); + cpu = pick_online_cpu(); FAIL_IF(cpu < 0); FAIL_IF(bind_to_cpu(cpu)); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c b/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c index 7e78153f0..7762ab26e 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c @@ -16,6 +16,8 @@ int event_attributes(void) { struct event event, leader; + SKIP_IF(!ebb_is_supported()); + event_init(&event, 0x1001e); event_leader_ebb_init(&event); /* Expected to succeed */ diff --git a/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c b/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c index 9e7af6e76..167135bd9 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c @@ -44,6 +44,8 @@ int fork_cleanup(void) { pid_t pid; + SKIP_IF(!ebb_is_supported()); + event_init_named(&event, 0x1001e, "cycles"); event_leader_ebb_init(&event); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c b/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c index f8190fa29..5da355135 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c @@ -111,6 +111,8 @@ int instruction_count(void) struct event event; uint64_t overhead; + SKIP_IF(!ebb_is_supported()); + event_init_named(&event, 0x400FA, "PM_RUN_INST_CMPL"); event_leader_ebb_init(&event); event.attr.exclude_kernel = 1; diff --git a/tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c b/tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c index 0c9dd9b2e..eb8acb78b 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c @@ -23,6 +23,8 @@ static int test_body(void) int i, orig_period, max_period; struct event event; + SKIP_IF(!ebb_is_supported()); + /* We use PMC4 to make sure the kernel switches all counters correctly */ event_init_named(&event, 0x40002, "instructions"); event_leader_ebb_init(&event); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c b/tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c index 67d78af32..6ff8c8ff2 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c @@ -18,6 +18,8 @@ int multi_counter(void) struct event events[6]; int i, group_fd; + SKIP_IF(!ebb_is_supported()); + event_init_named(&events[0], 0x1001C, "PM_CMPLU_STALL_THRD"); event_init_named(&events[1], 0x2D016, "PM_CMPLU_STALL_FXU"); event_init_named(&events[2], 0x30006, "PM_CMPLU_STALL_OTHER_CMPL"); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c b/tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c index b8dc371f9..037cb6154 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c @@ -79,6 +79,8 @@ int multi_ebb_procs(void) pid_t pids[NR_CHILDREN]; int cpu, rc, i; + SKIP_IF(!ebb_is_supported()); + cpu = pick_online_cpu(); FAIL_IF(cpu < 0); FAIL_IF(bind_to_cpu(cpu)); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c index 2f9bf8edf..8341d7778 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c @@ -19,6 +19,8 @@ static int no_handler_test(void) u64 val; int i; + SKIP_IF(!ebb_is_supported()); + event_init_named(&event, 0x1001e, "cycles"); event_leader_ebb_init(&event); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c b/tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c index 986500fd2..c5fa64790 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c @@ -58,6 +58,8 @@ static int test_body(void) { struct event event; + SKIP_IF(!ebb_is_supported()); + event_init_named(&event, 0x1001e, "cycles"); event_leader_ebb_init(&event); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c b/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c index a503fa70c..c22860ab9 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c @@ -49,6 +49,8 @@ int pmc56_overflow(void) { struct event event; + SKIP_IF(!ebb_is_supported()); + /* Use PMC2 so we set PMCjCE, which enables PMC5/6 */ event_init(&event, 0x2001e); event_leader_ebb_init(&event); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c b/tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c index 0cae66f65..5b1188f10 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c @@ -18,6 +18,8 @@ int reg_access(void) { uint64_t val, expected; + SKIP_IF(!ebb_is_supported()); + expected = 0x8000000100000000ull; mtspr(SPRN_BESCR, expected); val = mfspr(SPRN_BESCR); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c b/tools/testing/selftests/powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c index d56607e4f..1846f4e84 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c @@ -42,6 +42,8 @@ int task_event_pinned_vs_ebb(void) pid_t pid; int rc; + SKIP_IF(!ebb_is_supported()); + FAIL_IF(pipe(read_pipe.fds) == -1); FAIL_IF(pipe(write_pipe.fds) == -1); diff --git a/tools/testing/selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c b/tools/testing/selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c index eba32196d..e3bc6e92a 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c @@ -40,6 +40,8 @@ int task_event_vs_ebb(void) pid_t pid; int rc; + SKIP_IF(!ebb_is_supported()); + FAIL_IF(pipe(read_pipe.fds) == -1); FAIL_IF(pipe(write_pipe.fds) == -1); diff --git a/tools/testing/selftests/powerpc/syscalls/.gitignore b/tools/testing/selftests/powerpc/syscalls/.gitignore new file mode 100644 index 000000000..f0f3fcc9d --- /dev/null +++ b/tools/testing/selftests/powerpc/syscalls/.gitignore @@ -0,0 +1 @@ +ipc_unmuxed diff --git a/tools/testing/selftests/powerpc/syscalls/Makefile b/tools/testing/selftests/powerpc/syscalls/Makefile new file mode 100644 index 000000000..b35c7945b --- /dev/null +++ b/tools/testing/selftests/powerpc/syscalls/Makefile @@ -0,0 +1,12 @@ +TEST_PROGS := ipc_unmuxed + +CFLAGS += -I../../../../../usr/include + +all: $(TEST_PROGS) + +$(TEST_PROGS): ../harness.c + +include ../../lib.mk + +clean: + rm -f $(TEST_PROGS) *.o diff --git a/tools/testing/selftests/powerpc/syscalls/ipc.h b/tools/testing/selftests/powerpc/syscalls/ipc.h new file mode 100644 index 000000000..fbebc022e --- /dev/null +++ b/tools/testing/selftests/powerpc/syscalls/ipc.h @@ -0,0 +1,47 @@ +#ifdef __NR_semop +DO_TEST(semop, __NR_semop) +#endif + +#ifdef __NR_semget +DO_TEST(semget, __NR_semget) +#endif + +#ifdef __NR_semctl +DO_TEST(semctl, __NR_semctl) +#endif + +#ifdef __NR_semtimedop +DO_TEST(semtimedop, __NR_semtimedop) +#endif + +#ifdef __NR_msgsnd +DO_TEST(msgsnd, __NR_msgsnd) +#endif + +#ifdef __NR_msgrcv +DO_TEST(msgrcv, __NR_msgrcv) +#endif + +#ifdef __NR_msgget +DO_TEST(msgget, __NR_msgget) +#endif + +#ifdef __NR_msgctl +DO_TEST(msgctl, __NR_msgctl) +#endif + +#ifdef __NR_shmat +DO_TEST(shmat, __NR_shmat) +#endif + +#ifdef __NR_shmdt +DO_TEST(shmdt, __NR_shmdt) +#endif + +#ifdef __NR_shmget +DO_TEST(shmget, __NR_shmget) +#endif + +#ifdef __NR_shmctl +DO_TEST(shmctl, __NR_shmctl) +#endif diff --git a/tools/testing/selftests/powerpc/syscalls/ipc_unmuxed.c b/tools/testing/selftests/powerpc/syscalls/ipc_unmuxed.c new file mode 100644 index 000000000..2ac02706f --- /dev/null +++ b/tools/testing/selftests/powerpc/syscalls/ipc_unmuxed.c @@ -0,0 +1,61 @@ +/* + * Copyright 2015, Michael Ellerman, IBM Corp. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * This test simply tests that certain syscalls are implemented. It doesn't + * actually exercise their logic in any way. + */ + +#define _GNU_SOURCE +#include <errno.h> +#include <stdio.h> +#include <unistd.h> +#include <sys/syscall.h> + +#include "utils.h" + + +#define DO_TEST(_name, _num) \ +static int test_##_name(void) \ +{ \ + int rc; \ + printf("Testing " #_name); \ + errno = 0; \ + rc = syscall(_num, -1, 0, 0, 0, 0, 0); \ + printf("\treturned %d, errno %d\n", rc, errno); \ + return errno == ENOSYS; \ +} + +#include "ipc.h" +#undef DO_TEST + +static int ipc_unmuxed(void) +{ + int tests_done = 0; + +#define DO_TEST(_name, _num) \ + FAIL_IF(test_##_name()); \ + tests_done++; + +#include "ipc.h" +#undef DO_TEST + + /* + * If we ran no tests then it means none of the syscall numbers were + * defined, possibly because we were built against old headers. But it + * means we didn't really test anything, so instead of passing mark it + * as a skip to give the user a clue. + */ + SKIP_IF(tests_done == 0); + + return 0; +} + +int main(void) +{ + return test_harness(ipc_unmuxed, "ipc_unmuxed"); +} diff --git a/tools/testing/selftests/powerpc/tm/tm-syscall.c b/tools/testing/selftests/powerpc/tm/tm-syscall.c index 1276e23da..e835bf7ec 100644 --- a/tools/testing/selftests/powerpc/tm/tm-syscall.c +++ b/tools/testing/selftests/powerpc/tm/tm-syscall.c @@ -77,13 +77,23 @@ pid_t getppid_tm(bool suspend) exit(-1); } +static inline bool have_htm_nosc(void) +{ +#ifdef PPC_FEATURE2_HTM_NOSC + return ((long)get_auxv_entry(AT_HWCAP2) & PPC_FEATURE2_HTM_NOSC); +#else + printf("PPC_FEATURE2_HTM_NOSC not defined, can't check AT_HWCAP2\n"); + return false; +#endif +} + int tm_syscall(void) { unsigned count = 0; struct timeval end, now; - SKIP_IF(!((long)get_auxv_entry(AT_HWCAP2) - & PPC_FEATURE2_HTM_NOSC)); + SKIP_IF(!have_htm_nosc()); + setbuf(stdout, NULL); printf("Testing transactional syscalls for %d seconds...\n", TEST_DURATION); diff --git a/tools/testing/selftests/pstore/Makefile b/tools/testing/selftests/pstore/Makefile new file mode 100644 index 000000000..bd7abe24e --- /dev/null +++ b/tools/testing/selftests/pstore/Makefile @@ -0,0 +1,15 @@ +# Makefile for pstore selftests. +# Expects pstore backend is registered. + +all: + +TEST_PROGS := pstore_tests pstore_post_reboot_tests +TEST_FILES := common_tests pstore_crash_test + +include ../lib.mk + +run_crash: + @sh pstore_crash_test || { echo "pstore_crash_test: [FAIL]"; exit 1; } + +clean: + rm -rf logs/* *uuid diff --git a/tools/testing/selftests/pstore/common_tests b/tools/testing/selftests/pstore/common_tests new file mode 100755 index 000000000..3ea64d7cf --- /dev/null +++ b/tools/testing/selftests/pstore/common_tests @@ -0,0 +1,83 @@ +#!/bin/sh + +# common_tests - Shell script commonly used by pstore test scripts +# +# Copyright (C) Hitachi Ltd., 2015 +# Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com> +# +# Released under the terms of the GPL v2. + +# Utilities +errexit() { # message + echo "Error: $1" 1>&2 + exit 1 +} + +absdir() { # file_path + (cd `dirname $1`; pwd) +} + +show_result() { # result_value + if [ $1 -eq 0 ]; then + prlog "ok" + else + prlog "FAIL" + rc=1 + fi +} + +check_files_exist() { # type of pstorefs file + if [ -e ${1}-${backend}-0 ]; then + prlog "ok" + for f in `ls ${1}-${backend}-*`; do + prlog -e "\t${f}" + done + else + prlog "FAIL" + rc=1 + fi +} + +operate_files() { # tested value, files, operation + if [ $1 -eq 0 ]; then + prlog + for f in $2; do + prlog -ne "\t${f} ... " + # execute operation + $3 $f + show_result $? + done + else + prlog " ... FAIL" + rc=1 + fi +} + +# Parameters +TEST_STRING_PATTERN="Testing pstore: uuid=" +UUID=`cat /proc/sys/kernel/random/uuid` +TOP_DIR=`absdir $0` +LOG_DIR=$TOP_DIR/logs/`date +%Y%m%d-%H%M%S`_${UUID}/ +REBOOT_FLAG=$TOP_DIR/reboot_flag + +# Preparing logs +LOG_FILE=$LOG_DIR/`basename $0`.log +mkdir -p $LOG_DIR || errexit "Failed to make a log directory: $LOG_DIR" +date > $LOG_FILE +prlog() { # messages + /bin/echo "$@" | tee -a $LOG_FILE +} + +# Starting tests +rc=0 +prlog "=== Pstore unit tests (`basename $0`) ===" +prlog "UUID="$UUID + +prlog -n "Checking pstore backend is registered ... " +backend=`cat /sys/module/pstore/parameters/backend` +show_result $? +prlog -e "\tbackend=${backend}" +prlog -e "\tcmdline=`cat /proc/cmdline`" +if [ $rc -ne 0 ]; then + exit 1 +fi diff --git a/tools/testing/selftests/pstore/pstore_crash_test b/tools/testing/selftests/pstore/pstore_crash_test new file mode 100755 index 000000000..1a4afe5c1 --- /dev/null +++ b/tools/testing/selftests/pstore/pstore_crash_test @@ -0,0 +1,30 @@ +#!/bin/sh + +# pstore_crash_test - Pstore test shell script which causes crash and reboot +# +# Copyright (C) Hitachi Ltd., 2015 +# Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com> +# +# Released under the terms of the GPL v2. + +# exit if pstore backend is not registered +. ./common_tests + +prlog "Causing kernel crash ..." + +# enable all functions triggered by sysrq +echo 1 > /proc/sys/kernel/sysrq +# setting to reboot in 3 seconds after panic +echo 3 > /proc/sys/kernel/panic + +# save uuid file by different name because next test execution will replace it. +mv $TOP_DIR/uuid $TOP_DIR/prev_uuid + +# create a file as reboot flag +touch $REBOOT_FLAG +sync + +# cause crash +# Note: If you use kdump and want to see kmesg-* files after reboot, you should +# specify 'crash_kexec_post_notifiers' in 1st kernel's cmdline. +echo c > /proc/sysrq-trigger diff --git a/tools/testing/selftests/pstore/pstore_post_reboot_tests b/tools/testing/selftests/pstore/pstore_post_reboot_tests new file mode 100755 index 000000000..6ccb154cb --- /dev/null +++ b/tools/testing/selftests/pstore/pstore_post_reboot_tests @@ -0,0 +1,77 @@ +#!/bin/sh + +# pstore_post_reboot_tests - Check pstore's behavior after crash/reboot +# +# Copyright (C) Hitachi Ltd., 2015 +# Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com> +# +# Released under the terms of the GPL v2. + +. ./common_tests + +if [ -e $REBOOT_FLAG ]; then + rm $REBOOT_FLAG +else + prlog "pstore_crash_test has not been executed yet. we skip further tests." + exit 0 +fi + +prlog -n "Mounting pstore filesystem ... " +mount_info=`grep pstore /proc/mounts` +if [ $? -eq 0 ]; then + mount_point=`echo ${mount_info} | cut -d' ' -f2 | head -n1` + prlog "ok" +else + mount none /sys/fs/pstore -t pstore + if [ $? -eq 0 ]; then + mount_point=`grep pstore /proc/mounts | cut -d' ' -f2 | head -n1` + prlog "ok" + else + prlog "FAIL" + exit 1 + fi +fi + +cd ${mount_point} + +prlog -n "Checking dmesg files exist in pstore filesystem ... " +check_files_exist dmesg + +prlog -n "Checking console files exist in pstore filesystem ... " +check_files_exist console + +prlog -n "Checking pmsg files exist in pstore filesystem ... " +check_files_exist pmsg + +prlog -n "Checking dmesg files contain oops end marker" +grep_end_trace() { + grep -q "\---\[ end trace" $1 +} +files=`ls dmesg-${backend}-*` +operate_files $? "$files" grep_end_trace + +prlog -n "Checking console file contains oops end marker ... " +grep -q "\---\[ end trace" console-${backend}-0 +show_result $? + +prlog -n "Checking pmsg file properly keeps the content written before crash ... " +prev_uuid=`cat $TOP_DIR/prev_uuid` +if [ $? -eq 0 ]; then + nr_matched=`grep -c "$TEST_STRING_PATTERN" pmsg-${backend}-0` + if [ $nr_matched -eq 1 ]; then + grep -q "$TEST_STRING_PATTERN"$prev_uuid pmsg-${backend}-0 + show_result $? + else + prlog "FAIL" + rc=1 + fi +else + prlog "FAIL" + rc=1 +fi + +prlog -n "Removing all files in pstore filesystem " +files=`ls *-${backend}-*` +operate_files $? "$files" rm + +exit $rc diff --git a/tools/testing/selftests/pstore/pstore_tests b/tools/testing/selftests/pstore/pstore_tests new file mode 100755 index 000000000..f25d2a349 --- /dev/null +++ b/tools/testing/selftests/pstore/pstore_tests @@ -0,0 +1,30 @@ +#!/bin/sh + +# pstore_tests - Check pstore's behavior before crash/reboot +# +# Copyright (C) Hitachi Ltd., 2015 +# Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com> +# +# Released under the terms of the GPL v2. + +. ./common_tests + +prlog -n "Checking pstore console is registered ... " +dmesg | grep -q "console \[pstore" +show_result $? + +prlog -n "Checking /dev/pmsg0 exists ... " +test -e /dev/pmsg0 +show_result $? + +prlog -n "Writing unique string to /dev/pmsg0 ... " +if [ -e "/dev/pmsg0" ]; then + echo "${TEST_STRING_PATTERN}""$UUID" > /dev/pmsg0 + show_result $? + echo "$UUID" > $TOP_DIR/uuid +else + prlog "FAIL" + rc=1 +fi + +exit $rc diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh index fbe2dbff1..f6483609e 100755 --- a/tools/testing/selftests/rcutorture/bin/kvm.sh +++ b/tools/testing/selftests/rcutorture/bin/kvm.sh @@ -75,7 +75,7 @@ usage () { while test $# -gt 0 do case "$1" in - --bootargs) + --bootargs|--bootarg) checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--' TORTURE_BOOTARGS="$2" shift @@ -88,7 +88,7 @@ do --buildonly) TORTURE_BUILDONLY=1 ;; - --configs) + --configs|--config) checkarg --configs "(list of config files)" "$#" "$2" '^[^/]*$' '^--' configs="$2" shift @@ -134,7 +134,7 @@ do --no-initrd) TORTURE_INITRD=""; export TORTURE_INITRD ;; - --qemu-args) + --qemu-args|--qemu-arg) checkarg --qemu-args "-qemu args" $# "$2" '^-' '^error' TORTURE_QEMU_ARG="$2" shift diff --git a/tools/testing/selftests/rcutorture/configs/lock/CFLIST b/tools/testing/selftests/rcutorture/configs/lock/CFLIST index 6910b7370..b9611c523 100644 --- a/tools/testing/selftests/rcutorture/configs/lock/CFLIST +++ b/tools/testing/selftests/rcutorture/configs/lock/CFLIST @@ -1,4 +1,6 @@ LOCK01 LOCK02 LOCK03 -LOCK04
\ No newline at end of file +LOCK04 +LOCK05 +LOCK06 diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK05 b/tools/testing/selftests/rcutorture/configs/lock/LOCK05 new file mode 100644 index 000000000..1d1da1477 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK05 @@ -0,0 +1,6 @@ +CONFIG_SMP=y +CONFIG_NR_CPUS=4 +CONFIG_HOTPLUG_CPU=y +CONFIG_PREEMPT_NONE=n +CONFIG_PREEMPT_VOLUNTARY=n +CONFIG_PREEMPT=y diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK05.boot b/tools/testing/selftests/rcutorture/configs/lock/LOCK05.boot new file mode 100644 index 000000000..8ac37307c --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK05.boot @@ -0,0 +1 @@ +locktorture.torture_type=rtmutex_lock diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK06 b/tools/testing/selftests/rcutorture/configs/lock/LOCK06 new file mode 100644 index 000000000..1d1da1477 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK06 @@ -0,0 +1,6 @@ +CONFIG_SMP=y +CONFIG_NR_CPUS=4 +CONFIG_HOTPLUG_CPU=y +CONFIG_PREEMPT_NONE=n +CONFIG_PREEMPT_VOLUNTARY=n +CONFIG_PREEMPT=y diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK06.boot b/tools/testing/selftests/rcutorture/configs/lock/LOCK06.boot new file mode 100644 index 000000000..f92219cd4 --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK06.boot @@ -0,0 +1 @@ +locktorture.torture_type=percpu_rwsem_lock diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c index 770f47adf..882fe83a3 100644 --- a/tools/testing/selftests/seccomp/seccomp_bpf.c +++ b/tools/testing/selftests/seccomp/seccomp_bpf.c @@ -19,15 +19,19 @@ #include <linux/prctl.h> #include <linux/ptrace.h> #include <linux/seccomp.h> -#include <poll.h> #include <pthread.h> #include <semaphore.h> #include <signal.h> #include <stddef.h> #include <stdbool.h> #include <string.h> +#include <time.h> #include <linux/elf.h> #include <sys/uio.h> +#include <sys/utsname.h> +#include <sys/fcntl.h> +#include <sys/mman.h> +#include <sys/times.h> #define _GNU_SOURCE #include <unistd.h> @@ -428,14 +432,16 @@ TEST_SIGNAL(KILL_one, SIGSYS) TEST_SIGNAL(KILL_one_arg_one, SIGSYS) { + void *fatal_address; struct sock_filter filter[] = { BPF_STMT(BPF_LD|BPF_W|BPF_ABS, offsetof(struct seccomp_data, nr)), - BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getpid, 1, 0), + BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_times, 1, 0), BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW), /* Only both with lower 32-bit for now. */ BPF_STMT(BPF_LD|BPF_W|BPF_ABS, syscall_arg(0)), - BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, 0x0C0FFEE, 0, 1), + BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, + (unsigned long)&fatal_address, 0, 1), BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL), BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW), }; @@ -445,7 +451,8 @@ TEST_SIGNAL(KILL_one_arg_one, SIGSYS) }; long ret; pid_t parent = getppid(); - pid_t pid = getpid(); + struct tms timebuf; + clock_t clock = times(&timebuf); ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0); ASSERT_EQ(0, ret); @@ -454,17 +461,22 @@ TEST_SIGNAL(KILL_one_arg_one, SIGSYS) ASSERT_EQ(0, ret); EXPECT_EQ(parent, syscall(__NR_getppid)); - EXPECT_EQ(pid, syscall(__NR_getpid)); - /* getpid() should never return. */ - EXPECT_EQ(0, syscall(__NR_getpid, 0x0C0FFEE)); + EXPECT_LE(clock, syscall(__NR_times, &timebuf)); + /* times() should never return. */ + EXPECT_EQ(0, syscall(__NR_times, &fatal_address)); } TEST_SIGNAL(KILL_one_arg_six, SIGSYS) { +#ifndef __NR_mmap2 + int sysno = __NR_mmap; +#else + int sysno = __NR_mmap2; +#endif struct sock_filter filter[] = { BPF_STMT(BPF_LD|BPF_W|BPF_ABS, offsetof(struct seccomp_data, nr)), - BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getpid, 1, 0), + BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, sysno, 1, 0), BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW), /* Only both with lower 32-bit for now. */ BPF_STMT(BPF_LD|BPF_W|BPF_ABS, syscall_arg(5)), @@ -478,7 +490,11 @@ TEST_SIGNAL(KILL_one_arg_six, SIGSYS) }; long ret; pid_t parent = getppid(); - pid_t pid = getpid(); + int fd; + void *map1, *map2; + int page_size = sysconf(_SC_PAGESIZE); + + ASSERT_LT(0, page_size); ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0); ASSERT_EQ(0, ret); @@ -486,10 +502,22 @@ TEST_SIGNAL(KILL_one_arg_six, SIGSYS) ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog); ASSERT_EQ(0, ret); + fd = open("/dev/zero", O_RDONLY); + ASSERT_NE(-1, fd); + EXPECT_EQ(parent, syscall(__NR_getppid)); - EXPECT_EQ(pid, syscall(__NR_getpid)); - /* getpid() should never return. */ - EXPECT_EQ(0, syscall(__NR_getpid, 1, 2, 3, 4, 5, 0x0C0FFEE)); + map1 = (void *)syscall(sysno, + NULL, page_size, PROT_READ, MAP_PRIVATE, fd, page_size); + EXPECT_NE(MAP_FAILED, map1); + /* mmap2() should never return. */ + map2 = (void *)syscall(sysno, + NULL, page_size, PROT_READ, MAP_PRIVATE, fd, 0x0C0FFEE); + EXPECT_EQ(MAP_FAILED, map2); + + /* The test failed, so clean up the resources. */ + munmap(map1, page_size); + munmap(map2, page_size); + close(fd); } /* TODO(wad) add 64-bit versus 32-bit arg tests. */ @@ -1247,8 +1275,8 @@ void change_syscall(struct __test_metadata *_metadata, ret = ptrace(PTRACE_GETREGSET, tracee, NT_PRSTATUS, &iov); EXPECT_EQ(0, ret); -#if defined(__x86_64__) || defined(__i386__) || defined(__aarch64__) || \ - defined(__powerpc__) || defined(__s390__) +#if defined(__x86_64__) || defined(__i386__) || defined(__powerpc__) || \ + defined(__s390__) { regs.SYSCALL_NUM = syscall; } @@ -1262,6 +1290,18 @@ void change_syscall(struct __test_metadata *_metadata, EXPECT_EQ(0, ret); } +#elif defined(__aarch64__) +# ifndef NT_ARM_SYSTEM_CALL +# define NT_ARM_SYSTEM_CALL 0x404 +# endif + { + iov.iov_base = &syscall; + iov.iov_len = sizeof(syscall); + ret = ptrace(PTRACE_SETREGSET, tracee, NT_ARM_SYSTEM_CALL, + &iov); + EXPECT_EQ(0, ret); + } + #else ASSERT_EQ(1, 0) { TH_LOG("How is the syscall changed on this architecture?"); @@ -1272,6 +1312,8 @@ void change_syscall(struct __test_metadata *_metadata, if (syscall == -1) regs.SYSCALL_RET = 1; + iov.iov_base = ®s; + iov.iov_len = sizeof(regs); ret = ptrace(PTRACE_SETREGSET, tracee, NT_PRSTATUS, &iov); EXPECT_EQ(0, ret); } @@ -2005,20 +2047,25 @@ TEST(syscall_restart) BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 5, 0), BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_exit, 4, 0), BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_rt_sigreturn, 3, 0), - BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_poll, 4, 0), + BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_nanosleep, 4, 0), BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_restart_syscall, 4, 0), /* Allow __NR_write for easy logging. */ BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_write, 0, 1), BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW), BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL), - BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE|0x100), /* poll */ - BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE|0x200), /* restart */ + /* The nanosleep jump target. */ + BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE|0x100), + /* The restart_syscall jump target. */ + BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE|0x200), }; struct sock_fprog prog = { .len = (unsigned short)ARRAY_SIZE(filter), .filter = filter, }; +#if defined(__arm__) + struct utsname utsbuf; +#endif ASSERT_EQ(0, pipe(pipefd)); @@ -2027,10 +2074,7 @@ TEST(syscall_restart) if (child_pid == 0) { /* Child uses EXPECT not ASSERT to deliver status correctly. */ char buf = ' '; - struct pollfd fds = { - .fd = pipefd[0], - .events = POLLIN, - }; + struct timespec timeout = { }; /* Attach parent as tracer and stop. */ EXPECT_EQ(0, ptrace(PTRACE_TRACEME)); @@ -2054,10 +2098,11 @@ TEST(syscall_restart) TH_LOG("Failed to get sync data from read()"); } - /* Start poll to be interrupted. */ + /* Start nanosleep to be interrupted. */ + timeout.tv_sec = 1; errno = 0; - EXPECT_EQ(1, poll(&fds, 1, -1)) { - TH_LOG("Call to poll() failed (errno %d)", errno); + EXPECT_EQ(0, nanosleep(&timeout, NULL)) { + TH_LOG("Call to nanosleep() failed (errno %d)", errno); } /* Read final sync from parent. */ @@ -2082,14 +2127,14 @@ TEST(syscall_restart) ASSERT_EQ(0, ptrace(PTRACE_CONT, child_pid, NULL, 0)); ASSERT_EQ(1, write(pipefd[1], ".", 1)); - /* Wait for poll() to start. */ + /* Wait for nanosleep() to start. */ ASSERT_EQ(child_pid, waitpid(child_pid, &status, 0)); ASSERT_EQ(true, WIFSTOPPED(status)); ASSERT_EQ(SIGTRAP, WSTOPSIG(status)); ASSERT_EQ(PTRACE_EVENT_SECCOMP, (status >> 16)); ASSERT_EQ(0, ptrace(PTRACE_GETEVENTMSG, child_pid, NULL, &msg)); ASSERT_EQ(0x100, msg); - EXPECT_EQ(__NR_poll, get_syscall(_metadata, child_pid)); + EXPECT_EQ(__NR_nanosleep, get_syscall(_metadata, child_pid)); /* Might as well check siginfo for sanity while we're here. */ ASSERT_EQ(0, ptrace(PTRACE_GETSIGINFO, child_pid, NULL, &info)); @@ -2100,7 +2145,7 @@ TEST(syscall_restart) /* Verify signal delivery came from child (seccomp-triggered). */ EXPECT_EQ(child_pid, info.si_pid); - /* Interrupt poll with SIGSTOP (which we'll need to handle). */ + /* Interrupt nanosleep with SIGSTOP (which we'll need to handle). */ ASSERT_EQ(0, kill(child_pid, SIGSTOP)); ASSERT_EQ(0, ptrace(PTRACE_CONT, child_pid, NULL, 0)); ASSERT_EQ(child_pid, waitpid(child_pid, &status, 0)); @@ -2110,7 +2155,7 @@ TEST(syscall_restart) ASSERT_EQ(0, ptrace(PTRACE_GETSIGINFO, child_pid, NULL, &info)); EXPECT_EQ(getpid(), info.si_pid); - /* Restart poll with SIGCONT, which triggers restart_syscall. */ + /* Restart nanosleep with SIGCONT, which triggers restart_syscall. */ ASSERT_EQ(0, kill(child_pid, SIGCONT)); ASSERT_EQ(0, ptrace(PTRACE_CONT, child_pid, NULL, 0)); ASSERT_EQ(child_pid, waitpid(child_pid, &status, 0)); @@ -2124,16 +2169,25 @@ TEST(syscall_restart) ASSERT_EQ(SIGTRAP, WSTOPSIG(status)); ASSERT_EQ(PTRACE_EVENT_SECCOMP, (status >> 16)); ASSERT_EQ(0, ptrace(PTRACE_GETEVENTMSG, child_pid, NULL, &msg)); + ASSERT_EQ(0x200, msg); ret = get_syscall(_metadata, child_pid); #if defined(__arm__) - /* FIXME: ARM does not expose true syscall in registers. */ - EXPECT_EQ(__NR_poll, ret); -#else - EXPECT_EQ(__NR_restart_syscall, ret); + /* + * FIXME: + * - native ARM registers do NOT expose true syscall. + * - compat ARM registers on ARM64 DO expose true syscall. + */ + ASSERT_EQ(0, uname(&utsbuf)); + if (strncmp(utsbuf.machine, "arm", 3) == 0) { + EXPECT_EQ(__NR_nanosleep, ret); + } else #endif + { + EXPECT_EQ(__NR_restart_syscall, ret); + } - /* Write again to end poll. */ + /* Write again to end test. */ ASSERT_EQ(0, ptrace(PTRACE_CONT, child_pid, NULL, 0)); ASSERT_EQ(1, write(pipefd[1], "!", 1)); EXPECT_EQ(0, close(pipefd[1])); diff --git a/tools/testing/selftests/static_keys/test_static_keys.sh b/tools/testing/selftests/static_keys/test_static_keys.sh index 1261e3fa1..1261e3fa1 100644..100755 --- a/tools/testing/selftests/static_keys/test_static_keys.sh +++ b/tools/testing/selftests/static_keys/test_static_keys.sh diff --git a/tools/testing/selftests/timers/Makefile b/tools/testing/selftests/timers/Makefile index 89a3f44bf..4a1be1b75 100644 --- a/tools/testing/selftests/timers/Makefile +++ b/tools/testing/selftests/timers/Makefile @@ -8,7 +8,7 @@ LDFLAGS += -lrt -lpthread TEST_PROGS = posix_timers nanosleep nsleep-lat set-timer-lat mqueue-lat \ inconsistency-check raw_skew threadtest rtctest -TEST_PROGS_EXTENDED = alarmtimer-suspend valid-adjtimex change_skew \ +TEST_PROGS_EXTENDED = alarmtimer-suspend valid-adjtimex adjtick change_skew \ skew_consistency clocksource-switch leap-a-day \ leapcrash set-tai set-2038 @@ -24,6 +24,7 @@ include ../lib.mk run_destructive_tests: run_tests ./alarmtimer-suspend ./valid-adjtimex + ./adjtick ./change_skew ./skew_consistency ./clocksource-switch diff --git a/tools/testing/selftests/timers/adjtick.c b/tools/testing/selftests/timers/adjtick.c new file mode 100644 index 000000000..9887fd538 --- /dev/null +++ b/tools/testing/selftests/timers/adjtick.c @@ -0,0 +1,221 @@ +/* adjtimex() tick adjustment test + * by: John Stultz <john.stultz@linaro.org> + * (C) Copyright Linaro Limited 2015 + * Licensed under the GPLv2 + * + * To build: + * $ gcc adjtick.c -o adjtick -lrt + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <sys/time.h> +#include <sys/timex.h> +#include <time.h> + +#ifdef KTEST +#include "../kselftest.h" +#else +static inline int ksft_exit_pass(void) +{ + exit(0); +} +static inline int ksft_exit_fail(void) +{ + exit(1); +} +#endif + +#define CLOCK_MONOTONIC_RAW 4 + +#define NSEC_PER_SEC 1000000000LL +#define USEC_PER_SEC 1000000 + +#define MILLION 1000000 + +long systick; + +long long llabs(long long val) +{ + if (val < 0) + val = -val; + return val; +} + +unsigned long long ts_to_nsec(struct timespec ts) +{ + return ts.tv_sec * NSEC_PER_SEC + ts.tv_nsec; +} + +struct timespec nsec_to_ts(long long ns) +{ + struct timespec ts; + + ts.tv_sec = ns/NSEC_PER_SEC; + ts.tv_nsec = ns%NSEC_PER_SEC; + + return ts; +} + +long long diff_timespec(struct timespec start, struct timespec end) +{ + long long start_ns, end_ns; + + start_ns = ts_to_nsec(start); + end_ns = ts_to_nsec(end); + + return end_ns - start_ns; +} + +void get_monotonic_and_raw(struct timespec *mon, struct timespec *raw) +{ + struct timespec start, mid, end; + long long diff = 0, tmp; + int i; + + clock_gettime(CLOCK_MONOTONIC, mon); + clock_gettime(CLOCK_MONOTONIC_RAW, raw); + + /* Try to get a more tightly bound pairing */ + for (i = 0; i < 3; i++) { + long long newdiff; + + clock_gettime(CLOCK_MONOTONIC, &start); + clock_gettime(CLOCK_MONOTONIC_RAW, &mid); + clock_gettime(CLOCK_MONOTONIC, &end); + + newdiff = diff_timespec(start, end); + if (diff == 0 || newdiff < diff) { + diff = newdiff; + *raw = mid; + tmp = (ts_to_nsec(start) + ts_to_nsec(end))/2; + *mon = nsec_to_ts(tmp); + } + } +} + +long long get_ppm_drift(void) +{ + struct timespec mon_start, raw_start, mon_end, raw_end; + long long delta1, delta2, eppm; + + get_monotonic_and_raw(&mon_start, &raw_start); + + sleep(15); + + get_monotonic_and_raw(&mon_end, &raw_end); + + delta1 = diff_timespec(mon_start, mon_end); + delta2 = diff_timespec(raw_start, raw_end); + + eppm = (delta1*MILLION)/delta2 - MILLION; + + return eppm; +} + +int check_tick_adj(long tickval) +{ + long long eppm, ppm; + struct timex tx1; + + tx1.modes = ADJ_TICK; + tx1.modes |= ADJ_OFFSET; + tx1.modes |= ADJ_FREQUENCY; + tx1.modes |= ADJ_STATUS; + + tx1.status = STA_PLL; + tx1.offset = 0; + tx1.freq = 0; + tx1.tick = tickval; + + adjtimex(&tx1); + + sleep(1); + + ppm = ((long long)tickval * MILLION)/systick - MILLION; + printf("Estimating tick (act: %ld usec, %lld ppm): ", tickval, ppm); + + eppm = get_ppm_drift(); + printf("%lld usec, %lld ppm", systick + (systick * eppm / MILLION), eppm); + + tx1.modes = 0; + adjtimex(&tx1); + + if (tx1.offset || tx1.freq || tx1.tick != tickval) { + printf(" [ERROR]\n"); + printf("\tUnexpected adjtimex return values, make sure ntpd is not running.\n"); + return -1; + } + + /* + * Here we use 100ppm difference as an error bound. + * We likely should see better, but some coarse clocksources + * cannot match the HZ tick size accurately, so we have a + * internal correction factor that doesn't scale exactly + * with the adjustment, resulting in > 10ppm error during + * a 10% adjustment. 100ppm also gives us more breathing + * room for interruptions during the measurement. + */ + if (llabs(eppm - ppm) > 100) { + printf(" [FAILED]\n"); + return -1; + } + printf(" [OK]\n"); + + return 0; +} + +int main(int argv, char **argc) +{ + struct timespec raw; + long tick, max, interval, err; + struct timex tx1; + + err = 0; + setbuf(stdout, NULL); + + if (clock_gettime(CLOCK_MONOTONIC_RAW, &raw)) { + printf("ERR: NO CLOCK_MONOTONIC_RAW\n"); + return -1; + } + + printf("Each iteration takes about 15 seconds\n"); + + systick = sysconf(_SC_CLK_TCK); + systick = USEC_PER_SEC/sysconf(_SC_CLK_TCK); + max = systick/10; /* +/- 10% */ + interval = max/4; /* in 4 steps each side */ + + for (tick = (systick - max); tick < (systick + max); tick += interval) { + if (check_tick_adj(tick)) { + err = 1; + break; + } + } + + /* Reset things to zero */ + tx1.modes = ADJ_TICK; + tx1.modes |= ADJ_OFFSET; + tx1.modes |= ADJ_FREQUENCY; + + tx1.offset = 0; + tx1.freq = 0; + tx1.tick = systick; + + adjtimex(&tx1); + + if (err) + return ksft_exit_fail(); + + return ksft_exit_pass(); +} diff --git a/tools/testing/selftests/timers/nanosleep.c b/tools/testing/selftests/timers/nanosleep.c index 8a3c29de7..ff942ff7c 100644 --- a/tools/testing/selftests/timers/nanosleep.c +++ b/tools/testing/selftests/timers/nanosleep.c @@ -19,6 +19,7 @@ * GNU General Public License for more details. */ +#include <errno.h> #include <stdio.h> #include <stdlib.h> #include <time.h> diff --git a/tools/testing/selftests/timers/rtctest.c b/tools/testing/selftests/timers/rtctest.c index d80ae8523..624bce51b 100644 --- a/tools/testing/selftests/timers/rtctest.c +++ b/tools/testing/selftests/timers/rtctest.c @@ -61,7 +61,7 @@ int main(int argc, char **argv) /* Turn on update interrupts (one per second) */ retval = ioctl(fd, RTC_UIE_ON, 0); if (retval == -1) { - if (errno == ENOTTY) { + if (errno == EINVAL) { fprintf(stderr, "\n...Update IRQs not supported.\n"); goto test_READ; diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile index 3c53cac15..e4bb1de1d 100644 --- a/tools/testing/selftests/vm/Makefile +++ b/tools/testing/selftests/vm/Makefile @@ -5,6 +5,8 @@ BINARIES = compaction_test BINARIES += hugepage-mmap BINARIES += hugepage-shm BINARIES += map_hugetlb +BINARIES += mlock2-tests +BINARIES += on-fault-limit BINARIES += thuge-gen BINARIES += transhuge-stress BINARIES += userfaultfd diff --git a/tools/testing/selftests/vm/mlock2-tests.c b/tools/testing/selftests/vm/mlock2-tests.c new file mode 100644 index 000000000..02ca5e017 --- /dev/null +++ b/tools/testing/selftests/vm/mlock2-tests.c @@ -0,0 +1,737 @@ +#define _GNU_SOURCE +#include <sys/mman.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <sys/time.h> +#include <sys/resource.h> +#include <syscall.h> +#include <errno.h> +#include <stdbool.h> + +#ifndef MLOCK_ONFAULT +#define MLOCK_ONFAULT 1 +#endif + +#ifndef MCL_ONFAULT +#define MCL_ONFAULT (MCL_FUTURE << 1) +#endif + +static int mlock2_(void *start, size_t len, int flags) +{ +#ifdef __NR_mlock2 + return syscall(__NR_mlock2, start, len, flags); +#else + errno = ENOSYS; + return -1; +#endif +} + +struct vm_boundaries { + unsigned long start; + unsigned long end; +}; + +static int get_vm_area(unsigned long addr, struct vm_boundaries *area) +{ + FILE *file; + int ret = 1; + char line[1024] = {0}; + char *end_addr; + char *stop; + unsigned long start; + unsigned long end; + + if (!area) + return ret; + + file = fopen("/proc/self/maps", "r"); + if (!file) { + perror("fopen"); + return ret; + } + + memset(area, 0, sizeof(struct vm_boundaries)); + + while(fgets(line, 1024, file)) { + end_addr = strchr(line, '-'); + if (!end_addr) { + printf("cannot parse /proc/self/maps\n"); + goto out; + } + *end_addr = '\0'; + end_addr++; + stop = strchr(end_addr, ' '); + if (!stop) { + printf("cannot parse /proc/self/maps\n"); + goto out; + } + stop = '\0'; + + sscanf(line, "%lx", &start); + sscanf(end_addr, "%lx", &end); + + if (start <= addr && end > addr) { + area->start = start; + area->end = end; + ret = 0; + goto out; + } + } +out: + fclose(file); + return ret; +} + +static uint64_t get_pageflags(unsigned long addr) +{ + FILE *file; + uint64_t pfn; + unsigned long offset; + + file = fopen("/proc/self/pagemap", "r"); + if (!file) { + perror("fopen pagemap"); + _exit(1); + } + + offset = addr / getpagesize() * sizeof(pfn); + + if (fseek(file, offset, SEEK_SET)) { + perror("fseek pagemap"); + _exit(1); + } + + if (fread(&pfn, sizeof(pfn), 1, file) != 1) { + perror("fread pagemap"); + _exit(1); + } + + fclose(file); + return pfn; +} + +static uint64_t get_kpageflags(unsigned long pfn) +{ + uint64_t flags; + FILE *file; + + file = fopen("/proc/kpageflags", "r"); + if (!file) { + perror("fopen kpageflags"); + _exit(1); + } + + if (fseek(file, pfn * sizeof(flags), SEEK_SET)) { + perror("fseek kpageflags"); + _exit(1); + } + + if (fread(&flags, sizeof(flags), 1, file) != 1) { + perror("fread kpageflags"); + _exit(1); + } + + fclose(file); + return flags; +} + +static FILE *seek_to_smaps_entry(unsigned long addr) +{ + FILE *file; + char *line = NULL; + size_t size = 0; + unsigned long start, end; + char perms[5]; + unsigned long offset; + char dev[32]; + unsigned long inode; + char path[BUFSIZ]; + + file = fopen("/proc/self/smaps", "r"); + if (!file) { + perror("fopen smaps"); + _exit(1); + } + + while (getline(&line, &size, file) > 0) { + if (sscanf(line, "%lx-%lx %s %lx %s %lu %s\n", + &start, &end, perms, &offset, dev, &inode, path) < 6) + goto next; + + if (start <= addr && addr < end) + goto out; + +next: + free(line); + line = NULL; + size = 0; + } + + fclose(file); + file = NULL; + +out: + free(line); + return file; +} + +#define VMFLAGS "VmFlags:" + +static bool is_vmflag_set(unsigned long addr, const char *vmflag) +{ + char *line = NULL; + char *flags; + size_t size = 0; + bool ret = false; + FILE *smaps; + + smaps = seek_to_smaps_entry(addr); + if (!smaps) { + printf("Unable to parse /proc/self/smaps\n"); + goto out; + } + + while (getline(&line, &size, smaps) > 0) { + if (!strstr(line, VMFLAGS)) { + free(line); + line = NULL; + size = 0; + continue; + } + + flags = line + strlen(VMFLAGS); + ret = (strstr(flags, vmflag) != NULL); + goto out; + } + +out: + free(line); + fclose(smaps); + return ret; +} + +#define SIZE "Size:" +#define RSS "Rss:" +#define LOCKED "lo" + +static bool is_vma_lock_on_fault(unsigned long addr) +{ + bool ret = false; + bool locked; + FILE *smaps = NULL; + unsigned long vma_size, vma_rss; + char *line = NULL; + char *value; + size_t size = 0; + + locked = is_vmflag_set(addr, LOCKED); + if (!locked) + goto out; + + smaps = seek_to_smaps_entry(addr); + if (!smaps) { + printf("Unable to parse /proc/self/smaps\n"); + goto out; + } + + while (getline(&line, &size, smaps) > 0) { + if (!strstr(line, SIZE)) { + free(line); + line = NULL; + size = 0; + continue; + } + + value = line + strlen(SIZE); + if (sscanf(value, "%lu kB", &vma_size) < 1) { + printf("Unable to parse smaps entry for Size\n"); + goto out; + } + break; + } + + while (getline(&line, &size, smaps) > 0) { + if (!strstr(line, RSS)) { + free(line); + line = NULL; + size = 0; + continue; + } + + value = line + strlen(RSS); + if (sscanf(value, "%lu kB", &vma_rss) < 1) { + printf("Unable to parse smaps entry for Rss\n"); + goto out; + } + break; + } + + ret = locked && (vma_rss < vma_size); +out: + free(line); + if (smaps) + fclose(smaps); + return ret; +} + +#define PRESENT_BIT 0x8000000000000000ULL +#define PFN_MASK 0x007FFFFFFFFFFFFFULL +#define UNEVICTABLE_BIT (1UL << 18) + +static int lock_check(char *map) +{ + unsigned long page_size = getpagesize(); + uint64_t page1_flags, page2_flags; + + page1_flags = get_pageflags((unsigned long)map); + page2_flags = get_pageflags((unsigned long)map + page_size); + + /* Both pages should be present */ + if (((page1_flags & PRESENT_BIT) == 0) || + ((page2_flags & PRESENT_BIT) == 0)) { + printf("Failed to make both pages present\n"); + return 1; + } + + page1_flags = get_kpageflags(page1_flags & PFN_MASK); + page2_flags = get_kpageflags(page2_flags & PFN_MASK); + + /* Both pages should be unevictable */ + if (((page1_flags & UNEVICTABLE_BIT) == 0) || + ((page2_flags & UNEVICTABLE_BIT) == 0)) { + printf("Failed to make both pages unevictable\n"); + return 1; + } + + if (!is_vmflag_set((unsigned long)map, LOCKED)) { + printf("VMA flag %s is missing on page 1\n", LOCKED); + return 1; + } + + if (!is_vmflag_set((unsigned long)map + page_size, LOCKED)) { + printf("VMA flag %s is missing on page 2\n", LOCKED); + return 1; + } + + return 0; +} + +static int unlock_lock_check(char *map) +{ + unsigned long page_size = getpagesize(); + uint64_t page1_flags, page2_flags; + + page1_flags = get_pageflags((unsigned long)map); + page2_flags = get_pageflags((unsigned long)map + page_size); + page1_flags = get_kpageflags(page1_flags & PFN_MASK); + page2_flags = get_kpageflags(page2_flags & PFN_MASK); + + if ((page1_flags & UNEVICTABLE_BIT) || (page2_flags & UNEVICTABLE_BIT)) { + printf("A page is still marked unevictable after unlock\n"); + return 1; + } + + if (is_vmflag_set((unsigned long)map, LOCKED)) { + printf("VMA flag %s is present on page 1 after unlock\n", LOCKED); + return 1; + } + + if (is_vmflag_set((unsigned long)map + page_size, LOCKED)) { + printf("VMA flag %s is present on page 2 after unlock\n", LOCKED); + return 1; + } + + return 0; +} + +static int test_mlock_lock() +{ + char *map; + int ret = 1; + unsigned long page_size = getpagesize(); + + map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE, + MAP_ANONYMOUS | MAP_PRIVATE, 0, 0); + if (map == MAP_FAILED) { + perror("test_mlock_locked mmap"); + goto out; + } + + if (mlock2_(map, 2 * page_size, 0)) { + if (errno == ENOSYS) { + printf("Cannot call new mlock family, skipping test\n"); + _exit(0); + } + perror("mlock2(0)"); + goto unmap; + } + + if (lock_check(map)) + goto unmap; + + /* Now unlock and recheck attributes */ + if (munlock(map, 2 * page_size)) { + perror("munlock()"); + goto unmap; + } + + ret = unlock_lock_check(map); + +unmap: + munmap(map, 2 * page_size); +out: + return ret; +} + +static int onfault_check(char *map) +{ + unsigned long page_size = getpagesize(); + uint64_t page1_flags, page2_flags; + + page1_flags = get_pageflags((unsigned long)map); + page2_flags = get_pageflags((unsigned long)map + page_size); + + /* Neither page should be present */ + if ((page1_flags & PRESENT_BIT) || (page2_flags & PRESENT_BIT)) { + printf("Pages were made present by MLOCK_ONFAULT\n"); + return 1; + } + + *map = 'a'; + page1_flags = get_pageflags((unsigned long)map); + page2_flags = get_pageflags((unsigned long)map + page_size); + + /* Only page 1 should be present */ + if ((page1_flags & PRESENT_BIT) == 0) { + printf("Page 1 is not present after fault\n"); + return 1; + } else if (page2_flags & PRESENT_BIT) { + printf("Page 2 was made present\n"); + return 1; + } + + page1_flags = get_kpageflags(page1_flags & PFN_MASK); + + /* Page 1 should be unevictable */ + if ((page1_flags & UNEVICTABLE_BIT) == 0) { + printf("Failed to make faulted page unevictable\n"); + return 1; + } + + if (!is_vma_lock_on_fault((unsigned long)map)) { + printf("VMA is not marked for lock on fault\n"); + return 1; + } + + if (!is_vma_lock_on_fault((unsigned long)map + page_size)) { + printf("VMA is not marked for lock on fault\n"); + return 1; + } + + return 0; +} + +static int unlock_onfault_check(char *map) +{ + unsigned long page_size = getpagesize(); + uint64_t page1_flags; + + page1_flags = get_pageflags((unsigned long)map); + page1_flags = get_kpageflags(page1_flags & PFN_MASK); + + if (page1_flags & UNEVICTABLE_BIT) { + printf("Page 1 is still marked unevictable after unlock\n"); + return 1; + } + + if (is_vma_lock_on_fault((unsigned long)map) || + is_vma_lock_on_fault((unsigned long)map + page_size)) { + printf("VMA is still lock on fault after unlock\n"); + return 1; + } + + return 0; +} + +static int test_mlock_onfault() +{ + char *map; + int ret = 1; + unsigned long page_size = getpagesize(); + + map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE, + MAP_ANONYMOUS | MAP_PRIVATE, 0, 0); + if (map == MAP_FAILED) { + perror("test_mlock_locked mmap"); + goto out; + } + + if (mlock2_(map, 2 * page_size, MLOCK_ONFAULT)) { + if (errno == ENOSYS) { + printf("Cannot call new mlock family, skipping test\n"); + _exit(0); + } + perror("mlock2(MLOCK_ONFAULT)"); + goto unmap; + } + + if (onfault_check(map)) + goto unmap; + + /* Now unlock and recheck attributes */ + if (munlock(map, 2 * page_size)) { + if (errno == ENOSYS) { + printf("Cannot call new mlock family, skipping test\n"); + _exit(0); + } + perror("munlock()"); + goto unmap; + } + + ret = unlock_onfault_check(map); +unmap: + munmap(map, 2 * page_size); +out: + return ret; +} + +static int test_lock_onfault_of_present() +{ + char *map; + int ret = 1; + unsigned long page_size = getpagesize(); + uint64_t page1_flags, page2_flags; + + map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE, + MAP_ANONYMOUS | MAP_PRIVATE, 0, 0); + if (map == MAP_FAILED) { + perror("test_mlock_locked mmap"); + goto out; + } + + *map = 'a'; + + if (mlock2_(map, 2 * page_size, MLOCK_ONFAULT)) { + if (errno == ENOSYS) { + printf("Cannot call new mlock family, skipping test\n"); + _exit(0); + } + perror("mlock2(MLOCK_ONFAULT)"); + goto unmap; + } + + page1_flags = get_pageflags((unsigned long)map); + page2_flags = get_pageflags((unsigned long)map + page_size); + page1_flags = get_kpageflags(page1_flags & PFN_MASK); + page2_flags = get_kpageflags(page2_flags & PFN_MASK); + + /* Page 1 should be unevictable */ + if ((page1_flags & UNEVICTABLE_BIT) == 0) { + printf("Failed to make present page unevictable\n"); + goto unmap; + } + + if (!is_vma_lock_on_fault((unsigned long)map) || + !is_vma_lock_on_fault((unsigned long)map + page_size)) { + printf("VMA with present pages is not marked lock on fault\n"); + goto unmap; + } + ret = 0; +unmap: + munmap(map, 2 * page_size); +out: + return ret; +} + +static int test_munlockall() +{ + char *map; + int ret = 1; + unsigned long page_size = getpagesize(); + + map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE, + MAP_ANONYMOUS | MAP_PRIVATE, 0, 0); + + if (map == MAP_FAILED) { + perror("test_munlockall mmap"); + goto out; + } + + if (mlockall(MCL_CURRENT)) { + perror("mlockall(MCL_CURRENT)"); + goto out; + } + + if (lock_check(map)) + goto unmap; + + if (munlockall()) { + perror("munlockall()"); + goto unmap; + } + + if (unlock_lock_check(map)) + goto unmap; + + munmap(map, 2 * page_size); + + map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE, + MAP_ANONYMOUS | MAP_PRIVATE, 0, 0); + + if (map == MAP_FAILED) { + perror("test_munlockall second mmap"); + goto out; + } + + if (mlockall(MCL_CURRENT | MCL_ONFAULT)) { + perror("mlockall(MCL_CURRENT | MCL_ONFAULT)"); + goto unmap; + } + + if (onfault_check(map)) + goto unmap; + + if (munlockall()) { + perror("munlockall()"); + goto unmap; + } + + if (unlock_onfault_check(map)) + goto unmap; + + if (mlockall(MCL_CURRENT | MCL_FUTURE)) { + perror("mlockall(MCL_CURRENT | MCL_FUTURE)"); + goto out; + } + + if (lock_check(map)) + goto unmap; + + if (munlockall()) { + perror("munlockall()"); + goto unmap; + } + + ret = unlock_lock_check(map); + +unmap: + munmap(map, 2 * page_size); +out: + munlockall(); + return ret; +} + +static int test_vma_management(bool call_mlock) +{ + int ret = 1; + void *map; + unsigned long page_size = getpagesize(); + struct vm_boundaries page1; + struct vm_boundaries page2; + struct vm_boundaries page3; + + map = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE, + MAP_ANONYMOUS | MAP_PRIVATE, 0, 0); + if (map == MAP_FAILED) { + perror("mmap()"); + return ret; + } + + if (call_mlock && mlock2_(map, 3 * page_size, MLOCK_ONFAULT)) { + if (errno == ENOSYS) { + printf("Cannot call new mlock family, skipping test\n"); + _exit(0); + } + perror("mlock(ONFAULT)\n"); + goto out; + } + + if (get_vm_area((unsigned long)map, &page1) || + get_vm_area((unsigned long)map + page_size, &page2) || + get_vm_area((unsigned long)map + page_size * 2, &page3)) { + printf("couldn't find mapping in /proc/self/maps\n"); + goto out; + } + + /* + * Before we unlock a portion, we need to that all three pages are in + * the same VMA. If they are not we abort this test (Note that this is + * not a failure) + */ + if (page1.start != page2.start || page2.start != page3.start) { + printf("VMAs are not merged to start, aborting test\n"); + ret = 0; + goto out; + } + + if (munlock(map + page_size, page_size)) { + perror("munlock()"); + goto out; + } + + if (get_vm_area((unsigned long)map, &page1) || + get_vm_area((unsigned long)map + page_size, &page2) || + get_vm_area((unsigned long)map + page_size * 2, &page3)) { + printf("couldn't find mapping in /proc/self/maps\n"); + goto out; + } + + /* All three VMAs should be different */ + if (page1.start == page2.start || page2.start == page3.start) { + printf("failed to split VMA for munlock\n"); + goto out; + } + + /* Now unlock the first and third page and check the VMAs again */ + if (munlock(map, page_size * 3)) { + perror("munlock()"); + goto out; + } + + if (get_vm_area((unsigned long)map, &page1) || + get_vm_area((unsigned long)map + page_size, &page2) || + get_vm_area((unsigned long)map + page_size * 2, &page3)) { + printf("couldn't find mapping in /proc/self/maps\n"); + goto out; + } + + /* Now all three VMAs should be the same */ + if (page1.start != page2.start || page2.start != page3.start) { + printf("failed to merge VMAs after munlock\n"); + goto out; + } + + ret = 0; +out: + munmap(map, 3 * page_size); + return ret; +} + +static int test_mlockall(int (test_function)(bool call_mlock)) +{ + int ret = 1; + + if (mlockall(MCL_CURRENT | MCL_ONFAULT | MCL_FUTURE)) { + perror("mlockall"); + return ret; + } + + ret = test_function(false); + munlockall(); + return ret; +} + +int main(int argc, char **argv) +{ + int ret = 0; + ret += test_mlock_lock(); + ret += test_mlock_onfault(); + ret += test_munlockall(); + ret += test_lock_onfault_of_present(); + ret += test_vma_management(true); + ret += test_mlockall(test_vma_management); + return ret; +} diff --git a/tools/testing/selftests/vm/on-fault-limit.c b/tools/testing/selftests/vm/on-fault-limit.c new file mode 100644 index 000000000..245acccce --- /dev/null +++ b/tools/testing/selftests/vm/on-fault-limit.c @@ -0,0 +1,47 @@ +#include <sys/mman.h> +#include <stdio.h> +#include <unistd.h> +#include <string.h> +#include <sys/time.h> +#include <sys/resource.h> + +#ifndef MCL_ONFAULT +#define MCL_ONFAULT (MCL_FUTURE << 1) +#endif + +static int test_limit(void) +{ + int ret = 1; + struct rlimit lims; + void *map; + + if (getrlimit(RLIMIT_MEMLOCK, &lims)) { + perror("getrlimit"); + return ret; + } + + if (mlockall(MCL_CURRENT | MCL_ONFAULT | MCL_FUTURE)) { + perror("mlockall"); + return ret; + } + + map = mmap(NULL, 2 * lims.rlim_max, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE, 0, 0); + if (map != MAP_FAILED) + printf("mmap should have failed, but didn't\n"); + else { + ret = 0; + munmap(map, 2 * lims.rlim_max); + } + + munlockall(); + return ret; +} + +int main(int argc, char **argv) +{ + int ret = 0; + + ret += test_limit(); + return ret; +} diff --git a/tools/testing/selftests/vm/run_vmtests b/tools/testing/selftests/vm/run_vmtests index 9179ce8df..e11968b36 100755 --- a/tools/testing/selftests/vm/run_vmtests +++ b/tools/testing/selftests/vm/run_vmtests @@ -20,13 +20,26 @@ done < /proc/meminfo if [ -n "$freepgs" ] && [ -n "$pgsize" ]; then nr_hugepgs=`cat /proc/sys/vm/nr_hugepages` needpgs=`expr $needmem / $pgsize` - if [ $freepgs -lt $needpgs ]; then + tries=2 + while [ $tries -gt 0 ] && [ $freepgs -lt $needpgs ]; do lackpgs=$(( $needpgs - $freepgs )) + echo 3 > /proc/sys/vm/drop_caches echo $(( $lackpgs + $nr_hugepgs )) > /proc/sys/vm/nr_hugepages if [ $? -ne 0 ]; then echo "Please run this test as root" exit 1 fi + while read name size unit; do + if [ "$name" = "HugePages_Free:" ]; then + freepgs=$size + fi + done < /proc/meminfo + tries=$((tries - 1)) + done + if [ $freepgs -lt $needpgs ]; then + printf "Not enough huge pages available (%d < %d)\n" \ + $freepgs $needpgs + exit 1 fi else echo "no hugetlbfs support in kernel?" @@ -106,4 +119,26 @@ else echo "[PASS]" fi +echo "--------------------" +echo "running on-fault-limit" +echo "--------------------" +sudo -u nobody ./on-fault-limit +if [ $? -ne 0 ]; then + echo "[FAIL]" + exitcode=1 +else + echo "[PASS]" +fi + +echo "--------------------" +echo "running mlock2-tests" +echo "--------------------" +./mlock2-tests +if [ $? -ne 0 ]; then + echo "[FAIL]" + exitcode=1 +else + echo "[PASS]" +fi + exit $exitcode diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile index 29089b24d..eabcff411 100644 --- a/tools/testing/selftests/x86/Makefile +++ b/tools/testing/selftests/x86/Makefile @@ -4,8 +4,9 @@ include ../lib.mk .PHONY: all all_32 all_64 warn_32bit_failure clean -TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs ldt_gdt syscall_nt -TARGETS_C_32BIT_ONLY := entry_from_vm86 syscall_arg_fault sigreturn +TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs ldt_gdt syscall_nt ptrace_syscall +TARGETS_C_32BIT_ONLY := entry_from_vm86 syscall_arg_fault sigreturn test_syscall_vdso unwind_vdso \ + test_FCMOV test_FCOMI test_FISTTP TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY) BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32) @@ -35,7 +36,7 @@ clean: $(RM) $(BINARIES_32) $(BINARIES_64) $(TARGETS_C_32BIT_ALL:%=%_32): %_32: %.c - $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl + $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl -lm $(TARGETS_C_BOTHBITS:%=%_64): %_64: %.c $(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl @@ -60,3 +61,5 @@ endif # Some tests have additional dependencies. sysret_ss_attrs_64: thunks.S +ptrace_syscall_32: raw_syscall_helper_32.S +test_syscall_vdso_32: thunks_32.S diff --git a/tools/testing/selftests/x86/ptrace_syscall.c b/tools/testing/selftests/x86/ptrace_syscall.c new file mode 100644 index 000000000..5105b49cd --- /dev/null +++ b/tools/testing/selftests/x86/ptrace_syscall.c @@ -0,0 +1,294 @@ +#define _GNU_SOURCE + +#include <sys/ptrace.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <sys/syscall.h> +#include <sys/user.h> +#include <unistd.h> +#include <errno.h> +#include <stddef.h> +#include <stdio.h> +#include <err.h> +#include <string.h> +#include <asm/ptrace-abi.h> +#include <sys/auxv.h> + +/* Bitness-agnostic defines for user_regs_struct fields. */ +#ifdef __x86_64__ +# define user_syscall_nr orig_rax +# define user_arg0 rdi +# define user_arg1 rsi +# define user_arg2 rdx +# define user_arg3 r10 +# define user_arg4 r8 +# define user_arg5 r9 +# define user_ip rip +# define user_ax rax +#else +# define user_syscall_nr orig_eax +# define user_arg0 ebx +# define user_arg1 ecx +# define user_arg2 edx +# define user_arg3 esi +# define user_arg4 edi +# define user_arg5 ebp +# define user_ip eip +# define user_ax eax +#endif + +static int nerrs = 0; + +struct syscall_args32 { + uint32_t nr, arg0, arg1, arg2, arg3, arg4, arg5; +}; + +#ifdef __i386__ +extern void sys32_helper(struct syscall_args32 *, void *); +extern void int80_and_ret(void); +#endif + +/* + * Helper to invoke int80 with controlled regs and capture the final regs. + */ +static void do_full_int80(struct syscall_args32 *args) +{ +#ifdef __x86_64__ + register unsigned long bp asm("bp") = args->arg5; + asm volatile ("int $0x80" + : "+a" (args->nr), + "+b" (args->arg0), "+c" (args->arg1), "+d" (args->arg2), + "+S" (args->arg3), "+D" (args->arg4), "+r" (bp)); + args->arg5 = bp; +#else + sys32_helper(args, int80_and_ret); +#endif +} + +#ifdef __i386__ +static void (*vsyscall32)(void); + +/* + * Nasty helper to invoke AT_SYSINFO (i.e. __kernel_vsyscall) with + * controlled regs and capture the final regs. This is so nasty that it + * crashes my copy of gdb :) + */ +static void do_full_vsyscall32(struct syscall_args32 *args) +{ + sys32_helper(args, vsyscall32); +} +#endif + +static siginfo_t wait_trap(pid_t chld) +{ + siginfo_t si; + if (waitid(P_PID, chld, &si, WEXITED|WSTOPPED) != 0) + err(1, "waitid"); + if (si.si_pid != chld) + errx(1, "got unexpected pid in event\n"); + if (si.si_code != CLD_TRAPPED) + errx(1, "got unexpected event type %d\n", si.si_code); + return si; +} + +static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *), + int flags) +{ + struct sigaction sa; + memset(&sa, 0, sizeof(sa)); + sa.sa_sigaction = handler; + sa.sa_flags = SA_SIGINFO | flags; + sigemptyset(&sa.sa_mask); + if (sigaction(sig, &sa, 0)) + err(1, "sigaction"); +} + +static void clearhandler(int sig) +{ + struct sigaction sa; + memset(&sa, 0, sizeof(sa)); + sa.sa_handler = SIG_DFL; + sigemptyset(&sa.sa_mask); + if (sigaction(sig, &sa, 0)) + err(1, "sigaction"); +} + +#ifdef __x86_64__ +# define REG_BP REG_RBP +#else +# define REG_BP REG_EBP +#endif + +static void empty_handler(int sig, siginfo_t *si, void *ctx_void) +{ +} + +static void test_sys32_regs(void (*do_syscall)(struct syscall_args32 *)) +{ + struct syscall_args32 args = { + .nr = 224, /* gettid */ + .arg0 = 10, .arg1 = 11, .arg2 = 12, + .arg3 = 13, .arg4 = 14, .arg5 = 15, + }; + + do_syscall(&args); + + if (args.nr != getpid() || + args.arg0 != 10 || args.arg1 != 11 || args.arg2 != 12 || + args.arg3 != 13 || args.arg4 != 14 || args.arg5 != 15) { + printf("[FAIL]\tgetpid() failed to preseve regs\n"); + nerrs++; + } else { + printf("[OK]\tgetpid() preserves regs\n"); + } + + sethandler(SIGUSR1, empty_handler, 0); + + args.nr = 37; /* kill */ + args.arg0 = getpid(); + args.arg1 = SIGUSR1; + do_syscall(&args); + if (args.nr != 0 || + args.arg0 != getpid() || args.arg1 != SIGUSR1 || args.arg2 != 12 || + args.arg3 != 13 || args.arg4 != 14 || args.arg5 != 15) { + printf("[FAIL]\tkill(getpid(), SIGUSR1) failed to preseve regs\n"); + nerrs++; + } else { + printf("[OK]\tkill(getpid(), SIGUSR1) preserves regs\n"); + } + clearhandler(SIGUSR1); +} + +static void test_ptrace_syscall_restart(void) +{ + printf("[RUN]\tptrace-induced syscall restart\n"); + pid_t chld = fork(); + if (chld < 0) + err(1, "fork"); + + if (chld == 0) { + if (ptrace(PTRACE_TRACEME, 0, 0, 0) != 0) + err(1, "PTRACE_TRACEME"); + + printf("\tChild will make one syscall\n"); + raise(SIGSTOP); + + syscall(SYS_gettid, 10, 11, 12, 13, 14, 15); + _exit(0); + } + + int status; + + /* Wait for SIGSTOP. */ + if (waitpid(chld, &status, 0) != chld || !WIFSTOPPED(status)) + err(1, "waitpid"); + + struct user_regs_struct regs; + + printf("[RUN]\tSYSEMU\n"); + if (ptrace(PTRACE_SYSEMU, chld, 0, 0) != 0) + err(1, "PTRACE_SYSCALL"); + wait_trap(chld); + + if (ptrace(PTRACE_GETREGS, chld, 0, ®s) != 0) + err(1, "PTRACE_GETREGS"); + + if (regs.user_syscall_nr != SYS_gettid || + regs.user_arg0 != 10 || regs.user_arg1 != 11 || + regs.user_arg2 != 12 || regs.user_arg3 != 13 || + regs.user_arg4 != 14 || regs.user_arg5 != 15) { + printf("[FAIL]\tInitial args are wrong (nr=%lu, args=%lu %lu %lu %lu %lu %lu)\n", (unsigned long)regs.user_syscall_nr, (unsigned long)regs.user_arg0, (unsigned long)regs.user_arg1, (unsigned long)regs.user_arg2, (unsigned long)regs.user_arg3, (unsigned long)regs.user_arg4, (unsigned long)regs.user_arg5); + nerrs++; + } else { + printf("[OK]\tInitial nr and args are correct\n"); + } + + printf("[RUN]\tRestart the syscall (ip = 0x%lx)\n", + (unsigned long)regs.user_ip); + + /* + * This does exactly what it appears to do if syscall is int80 or + * SYSCALL64. For SYSCALL32 or SYSENTER, though, this is highly + * magical. It needs to work so that ptrace and syscall restart + * work as expected. + */ + regs.user_ax = regs.user_syscall_nr; + regs.user_ip -= 2; + if (ptrace(PTRACE_SETREGS, chld, 0, ®s) != 0) + err(1, "PTRACE_SETREGS"); + + if (ptrace(PTRACE_SYSEMU, chld, 0, 0) != 0) + err(1, "PTRACE_SYSCALL"); + wait_trap(chld); + + if (ptrace(PTRACE_GETREGS, chld, 0, ®s) != 0) + err(1, "PTRACE_GETREGS"); + + if (regs.user_syscall_nr != SYS_gettid || + regs.user_arg0 != 10 || regs.user_arg1 != 11 || + regs.user_arg2 != 12 || regs.user_arg3 != 13 || + regs.user_arg4 != 14 || regs.user_arg5 != 15) { + printf("[FAIL]\tRestart nr or args are wrong (nr=%lu, args=%lu %lu %lu %lu %lu %lu)\n", (unsigned long)regs.user_syscall_nr, (unsigned long)regs.user_arg0, (unsigned long)regs.user_arg1, (unsigned long)regs.user_arg2, (unsigned long)regs.user_arg3, (unsigned long)regs.user_arg4, (unsigned long)regs.user_arg5); + nerrs++; + } else { + printf("[OK]\tRestarted nr and args are correct\n"); + } + + printf("[RUN]\tChange nr and args and restart the syscall (ip = 0x%lx)\n", + (unsigned long)regs.user_ip); + + regs.user_ax = SYS_getpid; + regs.user_arg0 = 20; + regs.user_arg1 = 21; + regs.user_arg2 = 22; + regs.user_arg3 = 23; + regs.user_arg4 = 24; + regs.user_arg5 = 25; + regs.user_ip -= 2; + + if (ptrace(PTRACE_SETREGS, chld, 0, ®s) != 0) + err(1, "PTRACE_SETREGS"); + + if (ptrace(PTRACE_SYSEMU, chld, 0, 0) != 0) + err(1, "PTRACE_SYSCALL"); + wait_trap(chld); + + if (ptrace(PTRACE_GETREGS, chld, 0, ®s) != 0) + err(1, "PTRACE_GETREGS"); + + if (regs.user_syscall_nr != SYS_getpid || + regs.user_arg0 != 20 || regs.user_arg1 != 21 || regs.user_arg2 != 22 || + regs.user_arg3 != 23 || regs.user_arg4 != 24 || regs.user_arg5 != 25) { + printf("[FAIL]\tRestart nr or args are wrong (nr=%lu, args=%lu %lu %lu %lu %lu %lu)\n", (unsigned long)regs.user_syscall_nr, (unsigned long)regs.user_arg0, (unsigned long)regs.user_arg1, (unsigned long)regs.user_arg2, (unsigned long)regs.user_arg3, (unsigned long)regs.user_arg4, (unsigned long)regs.user_arg5); + nerrs++; + } else { + printf("[OK]\tReplacement nr and args are correct\n"); + } + + if (ptrace(PTRACE_CONT, chld, 0, 0) != 0) + err(1, "PTRACE_CONT"); + if (waitpid(chld, &status, 0) != chld) + err(1, "waitpid"); + if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { + printf("[FAIL]\tChild failed\n"); + nerrs++; + } else { + printf("[OK]\tChild exited cleanly\n"); + } +} + +int main() +{ + printf("[RUN]\tCheck int80 return regs\n"); + test_sys32_regs(do_full_int80); + +#if defined(__i386__) && (!defined(__GLIBC__) || __GLIBC__ > 2 || __GLIBC_MINOR__ >= 16) + vsyscall32 = (void *)getauxval(AT_SYSINFO); + printf("[RUN]\tCheck AT_SYSINFO return regs\n"); + test_sys32_regs(do_full_vsyscall32); +#endif + + test_ptrace_syscall_restart(); + + return 0; +} diff --git a/tools/testing/selftests/x86/raw_syscall_helper_32.S b/tools/testing/selftests/x86/raw_syscall_helper_32.S new file mode 100644 index 000000000..534e71e35 --- /dev/null +++ b/tools/testing/selftests/x86/raw_syscall_helper_32.S @@ -0,0 +1,46 @@ +.global sys32_helper +sys32_helper: + /* Args: syscall_args_32*, function pointer */ + pushl %ebp + pushl %ebx + pushl %esi + pushl %edi + movl 5*4(%esp), %eax /* pointer to args struct */ + + movl 1*4(%eax), %ebx + movl 2*4(%eax), %ecx + movl 3*4(%eax), %edx + movl 4*4(%eax), %esi + movl 5*4(%eax), %edi + movl 6*4(%eax), %ebp + movl 0*4(%eax), %eax + + call *(6*4)(%esp) /* Do the syscall */ + + /* Now we need to recover without losing any reg values */ + pushl %eax + movl 6*4(%esp), %eax + popl 0*4(%eax) + movl %ebx, 1*4(%eax) + movl %ecx, 2*4(%eax) + movl %edx, 3*4(%eax) + movl %esi, 4*4(%eax) + movl %edi, 5*4(%eax) + movl %ebp, 6*4(%eax) + + popl %edi + popl %esi + popl %ebx + popl %ebp + ret + + .type sys32_helper, @function + .size sys32_helper, .-sys32_helper + +.global int80_and_ret +int80_and_ret: + int $0x80 + ret + + .type int80_and_ret, @function + .size int80_and_ret, .-int80_and_ret diff --git a/tools/testing/selftests/x86/test_FCMOV.c b/tools/testing/selftests/x86/test_FCMOV.c new file mode 100644 index 000000000..4adcca0c8 --- /dev/null +++ b/tools/testing/selftests/x86/test_FCMOV.c @@ -0,0 +1,93 @@ +#undef _GNU_SOURCE +#define _GNU_SOURCE 1 +#undef __USE_GNU +#define __USE_GNU 1 +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <signal.h> +#include <sys/types.h> +#include <sys/select.h> +#include <sys/time.h> +#include <sys/wait.h> + +#define TEST(insn) \ +long double __attribute__((noinline)) insn(long flags) \ +{ \ + long double out; \ + asm ("\n" \ + " push %1""\n" \ + " popf""\n" \ + " fldpi""\n" \ + " fld1""\n" \ + " " #insn " %%st(1), %%st" "\n" \ + " ffree %%st(1)" "\n" \ + : "=t" (out) \ + : "r" (flags) \ + ); \ + return out; \ +} + +TEST(fcmovb) +TEST(fcmove) +TEST(fcmovbe) +TEST(fcmovu) +TEST(fcmovnb) +TEST(fcmovne) +TEST(fcmovnbe) +TEST(fcmovnu) + +enum { + CF = 1 << 0, + PF = 1 << 2, + ZF = 1 << 6, +}; + +void sighandler(int sig) +{ + printf("[FAIL]\tGot signal %d, exiting\n", sig); + exit(1); +} + +int main(int argc, char **argv, char **envp) +{ + int err = 0; + + /* SIGILL triggers on 32-bit kernels w/o fcomi emulation + * when run with "no387 nofxsr". Other signals are caught + * just in case. + */ + signal(SIGILL, sighandler); + signal(SIGFPE, sighandler); + signal(SIGSEGV, sighandler); + + printf("[RUN]\tTesting fcmovCC instructions\n"); + /* If fcmovCC() returns 1.0, the move wasn't done */ + err |= !(fcmovb(0) == 1.0); err |= !(fcmovnb(0) != 1.0); + err |= !(fcmove(0) == 1.0); err |= !(fcmovne(0) != 1.0); + err |= !(fcmovbe(0) == 1.0); err |= !(fcmovnbe(0) != 1.0); + err |= !(fcmovu(0) == 1.0); err |= !(fcmovnu(0) != 1.0); + + err |= !(fcmovb(CF) != 1.0); err |= !(fcmovnb(CF) == 1.0); + err |= !(fcmove(CF) == 1.0); err |= !(fcmovne(CF) != 1.0); + err |= !(fcmovbe(CF) != 1.0); err |= !(fcmovnbe(CF) == 1.0); + err |= !(fcmovu(CF) == 1.0); err |= !(fcmovnu(CF) != 1.0); + + err |= !(fcmovb(ZF) == 1.0); err |= !(fcmovnb(ZF) != 1.0); + err |= !(fcmove(ZF) != 1.0); err |= !(fcmovne(ZF) == 1.0); + err |= !(fcmovbe(ZF) != 1.0); err |= !(fcmovnbe(ZF) == 1.0); + err |= !(fcmovu(ZF) == 1.0); err |= !(fcmovnu(ZF) != 1.0); + + err |= !(fcmovb(PF) == 1.0); err |= !(fcmovnb(PF) != 1.0); + err |= !(fcmove(PF) == 1.0); err |= !(fcmovne(PF) != 1.0); + err |= !(fcmovbe(PF) == 1.0); err |= !(fcmovnbe(PF) != 1.0); + err |= !(fcmovu(PF) != 1.0); err |= !(fcmovnu(PF) == 1.0); + + if (!err) + printf("[OK]\tfcmovCC\n"); + else + printf("[FAIL]\tfcmovCC errors: %d\n", err); + + return err; +} diff --git a/tools/testing/selftests/x86/test_FCOMI.c b/tools/testing/selftests/x86/test_FCOMI.c new file mode 100644 index 000000000..db4933e31 --- /dev/null +++ b/tools/testing/selftests/x86/test_FCOMI.c @@ -0,0 +1,331 @@ +#undef _GNU_SOURCE +#define _GNU_SOURCE 1 +#undef __USE_GNU +#define __USE_GNU 1 +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <signal.h> +#include <sys/types.h> +#include <sys/select.h> +#include <sys/time.h> +#include <sys/wait.h> +#include <fenv.h> + +enum { + CF = 1 << 0, + PF = 1 << 2, + ZF = 1 << 6, + ARITH = CF | PF | ZF, +}; + +long res_fcomi_pi_1; +long res_fcomi_1_pi; +long res_fcomi_1_1; +long res_fcomi_nan_1; +/* sNaN is s|111 1111 1|1xx xxxx xxxx xxxx xxxx xxxx */ +/* qNaN is s|111 1111 1|0xx xxxx xxxx xxxx xxxx xxxx (some x must be nonzero) */ +int snan = 0x7fc11111; +int qnan = 0x7f811111; +unsigned short snan1[5]; +/* sNaN80 is s|111 1111 1111 1111 |10xx xx...xx (some x must be nonzero) */ +unsigned short snan80[5] = { 0x1111, 0x1111, 0x1111, 0x8111, 0x7fff }; + +int test(long flags) +{ + feclearexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + + asm ("\n" + + " push %0""\n" + " popf""\n" + " fld1""\n" + " fldpi""\n" + " fcomi %%st(1), %%st" "\n" + " ffree %%st(0)" "\n" + " ffree %%st(1)" "\n" + " pushf""\n" + " pop res_fcomi_1_pi""\n" + + " push %0""\n" + " popf""\n" + " fldpi""\n" + " fld1""\n" + " fcomi %%st(1), %%st" "\n" + " ffree %%st(0)" "\n" + " ffree %%st(1)" "\n" + " pushf""\n" + " pop res_fcomi_pi_1""\n" + + " push %0""\n" + " popf""\n" + " fld1""\n" + " fld1""\n" + " fcomi %%st(1), %%st" "\n" + " ffree %%st(0)" "\n" + " ffree %%st(1)" "\n" + " pushf""\n" + " pop res_fcomi_1_1""\n" + : + : "r" (flags) + ); + if ((res_fcomi_1_pi & ARITH) != (0)) { + printf("[BAD]\tfcomi_1_pi with flags:%lx\n", flags); + return 1; + } + if ((res_fcomi_pi_1 & ARITH) != (CF)) { + printf("[BAD]\tfcomi_pi_1 with flags:%lx->%lx\n", flags, res_fcomi_pi_1 & ARITH); + return 1; + } + if ((res_fcomi_1_1 & ARITH) != (ZF)) { + printf("[BAD]\tfcomi_1_1 with flags:%lx\n", flags); + return 1; + } + if (fetestexcept(FE_INVALID) != 0) { + printf("[BAD]\tFE_INVALID is set in %s\n", __func__); + return 1; + } + return 0; +} + +int test_qnan(long flags) +{ + feclearexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + + asm ("\n" + " push %0""\n" + " popf""\n" + " flds qnan""\n" + " fld1""\n" + " fnclex""\n" // fld of a qnan raised FE_INVALID, clear it + " fcomi %%st(1), %%st" "\n" + " ffree %%st(0)" "\n" + " ffree %%st(1)" "\n" + " pushf""\n" + " pop res_fcomi_nan_1""\n" + : + : "r" (flags) + ); + if ((res_fcomi_nan_1 & ARITH) != (ZF|CF|PF)) { + printf("[BAD]\tfcomi_qnan_1 with flags:%lx\n", flags); + return 1; + } + if (fetestexcept(FE_INVALID) != FE_INVALID) { + printf("[BAD]\tFE_INVALID is not set in %s\n", __func__); + return 1; + } + return 0; +} + +int testu_qnan(long flags) +{ + feclearexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + + asm ("\n" + " push %0""\n" + " popf""\n" + " flds qnan""\n" + " fld1""\n" + " fnclex""\n" // fld of a qnan raised FE_INVALID, clear it + " fucomi %%st(1), %%st" "\n" + " ffree %%st(0)" "\n" + " ffree %%st(1)" "\n" + " pushf""\n" + " pop res_fcomi_nan_1""\n" + : + : "r" (flags) + ); + if ((res_fcomi_nan_1 & ARITH) != (ZF|CF|PF)) { + printf("[BAD]\tfcomi_qnan_1 with flags:%lx\n", flags); + return 1; + } + if (fetestexcept(FE_INVALID) != 0) { + printf("[BAD]\tFE_INVALID is set in %s\n", __func__); + return 1; + } + return 0; +} + +int testu_snan(long flags) +{ + feclearexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + + asm ("\n" + " push %0""\n" + " popf""\n" +// " flds snan""\n" // WRONG, this will convert 32-bit fp snan to a *qnan* in 80-bit fp register! +// " fstpt snan1""\n" // if uncommented, it prints "snan1:7fff c111 1100 0000 0000" - c111, not 8111! +// " fnclex""\n" // flds of a snan raised FE_INVALID, clear it + " fldt snan80""\n" // fldt never raise FE_INVALID + " fld1""\n" + " fucomi %%st(1), %%st" "\n" + " ffree %%st(0)" "\n" + " ffree %%st(1)" "\n" + " pushf""\n" + " pop res_fcomi_nan_1""\n" + : + : "r" (flags) + ); + if ((res_fcomi_nan_1 & ARITH) != (ZF|CF|PF)) { + printf("[BAD]\tfcomi_qnan_1 with flags:%lx\n", flags); + return 1; + } +// printf("snan:%x snan1:%04x %04x %04x %04x %04x\n", snan, snan1[4], snan1[3], snan1[2], snan1[1], snan1[0]); + if (fetestexcept(FE_INVALID) != FE_INVALID) { + printf("[BAD]\tFE_INVALID is not set in %s\n", __func__); + return 1; + } + return 0; +} + +int testp(long flags) +{ + feclearexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + + asm ("\n" + + " push %0""\n" + " popf""\n" + " fld1""\n" + " fldpi""\n" + " fcomip %%st(1), %%st" "\n" + " ffree %%st(0)" "\n" + " pushf""\n" + " pop res_fcomi_1_pi""\n" + + " push %0""\n" + " popf""\n" + " fldpi""\n" + " fld1""\n" + " fcomip %%st(1), %%st" "\n" + " ffree %%st(0)" "\n" + " pushf""\n" + " pop res_fcomi_pi_1""\n" + + " push %0""\n" + " popf""\n" + " fld1""\n" + " fld1""\n" + " fcomip %%st(1), %%st" "\n" + " ffree %%st(0)" "\n" + " pushf""\n" + " pop res_fcomi_1_1""\n" + : + : "r" (flags) + ); + if ((res_fcomi_1_pi & ARITH) != (0)) { + printf("[BAD]\tfcomi_1_pi with flags:%lx\n", flags); + return 1; + } + if ((res_fcomi_pi_1 & ARITH) != (CF)) { + printf("[BAD]\tfcomi_pi_1 with flags:%lx->%lx\n", flags, res_fcomi_pi_1 & ARITH); + return 1; + } + if ((res_fcomi_1_1 & ARITH) != (ZF)) { + printf("[BAD]\tfcomi_1_1 with flags:%lx\n", flags); + return 1; + } + if (fetestexcept(FE_INVALID) != 0) { + printf("[BAD]\tFE_INVALID is set in %s\n", __func__); + return 1; + } + return 0; +} + +int testp_qnan(long flags) +{ + feclearexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + + asm ("\n" + " push %0""\n" + " popf""\n" + " flds qnan""\n" + " fld1""\n" + " fnclex""\n" // fld of a qnan raised FE_INVALID, clear it + " fcomip %%st(1), %%st" "\n" + " ffree %%st(0)" "\n" + " pushf""\n" + " pop res_fcomi_nan_1""\n" + : + : "r" (flags) + ); + if ((res_fcomi_nan_1 & ARITH) != (ZF|CF|PF)) { + printf("[BAD]\tfcomi_qnan_1 with flags:%lx\n", flags); + return 1; + } + if (fetestexcept(FE_INVALID) != FE_INVALID) { + printf("[BAD]\tFE_INVALID is not set in %s\n", __func__); + return 1; + } + return 0; +} + +int testup_qnan(long flags) +{ + feclearexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + + asm ("\n" + " push %0""\n" + " popf""\n" + " flds qnan""\n" + " fld1""\n" + " fnclex""\n" // fld of a qnan raised FE_INVALID, clear it + " fucomip %%st(1), %%st" "\n" + " ffree %%st(0)" "\n" + " pushf""\n" + " pop res_fcomi_nan_1""\n" + : + : "r" (flags) + ); + if ((res_fcomi_nan_1 & ARITH) != (ZF|CF|PF)) { + printf("[BAD]\tfcomi_qnan_1 with flags:%lx\n", flags); + return 1; + } + if (fetestexcept(FE_INVALID) != 0) { + printf("[BAD]\tFE_INVALID is set in %s\n", __func__); + return 1; + } + return 0; +} + +void sighandler(int sig) +{ + printf("[FAIL]\tGot signal %d, exiting\n", sig); + exit(1); +} + +int main(int argc, char **argv, char **envp) +{ + int err = 0; + + /* SIGILL triggers on 32-bit kernels w/o fcomi emulation + * when run with "no387 nofxsr". Other signals are caught + * just in case. + */ + signal(SIGILL, sighandler); + signal(SIGFPE, sighandler); + signal(SIGSEGV, sighandler); + + printf("[RUN]\tTesting f[u]comi[p] instructions\n"); + err |= test(0); + err |= test_qnan(0); + err |= testu_qnan(0); + err |= testu_snan(0); + err |= test(CF|ZF|PF); + err |= test_qnan(CF|ZF|PF); + err |= testu_qnan(CF|ZF|PF); + err |= testu_snan(CF|ZF|PF); + err |= testp(0); + err |= testp_qnan(0); + err |= testup_qnan(0); + err |= testp(CF|ZF|PF); + err |= testp_qnan(CF|ZF|PF); + err |= testup_qnan(CF|ZF|PF); + if (!err) + printf("[OK]\tf[u]comi[p]\n"); + else + printf("[FAIL]\tf[u]comi[p] errors: %d\n", err); + + return err; +} diff --git a/tools/testing/selftests/x86/test_FISTTP.c b/tools/testing/selftests/x86/test_FISTTP.c new file mode 100644 index 000000000..b8e61a047 --- /dev/null +++ b/tools/testing/selftests/x86/test_FISTTP.c @@ -0,0 +1,137 @@ +#undef _GNU_SOURCE +#define _GNU_SOURCE 1 +#undef __USE_GNU +#define __USE_GNU 1 +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <signal.h> +#include <sys/types.h> +#include <sys/select.h> +#include <sys/time.h> +#include <sys/wait.h> +#include <fenv.h> + +unsigned long long res64 = -1; +unsigned int res32 = -1; +unsigned short res16 = -1; + +int test(void) +{ + int ex; + + feclearexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + asm volatile ("\n" + " fld1""\n" + " fisttp res16""\n" + " fld1""\n" + " fisttpl res32""\n" + " fld1""\n" + " fisttpll res64""\n" + : : : "memory" + ); + if (res16 != 1 || res32 != 1 || res64 != 1) { + printf("[BAD]\tfisttp 1\n"); + return 1; + } + ex = fetestexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + if (ex != 0) { + printf("[BAD]\tfisttp 1: wrong exception state\n"); + return 1; + } + + feclearexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + asm volatile ("\n" + " fldpi""\n" + " fisttp res16""\n" + " fldpi""\n" + " fisttpl res32""\n" + " fldpi""\n" + " fisttpll res64""\n" + : : : "memory" + ); + if (res16 != 3 || res32 != 3 || res64 != 3) { + printf("[BAD]\tfisttp pi\n"); + return 1; + } + ex = fetestexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + if (ex != FE_INEXACT) { + printf("[BAD]\tfisttp pi: wrong exception state\n"); + return 1; + } + + feclearexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + asm volatile ("\n" + " fldpi""\n" + " fchs""\n" + " fisttp res16""\n" + " fldpi""\n" + " fchs""\n" + " fisttpl res32""\n" + " fldpi""\n" + " fchs""\n" + " fisttpll res64""\n" + : : : "memory" + ); + if (res16 != 0xfffd || res32 != 0xfffffffd || res64 != 0xfffffffffffffffdULL) { + printf("[BAD]\tfisttp -pi\n"); + return 1; + } + ex = fetestexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + if (ex != FE_INEXACT) { + printf("[BAD]\tfisttp -pi: wrong exception state\n"); + return 1; + } + + feclearexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + asm volatile ("\n" + " fldln2""\n" + " fisttp res16""\n" + " fldln2""\n" + " fisttpl res32""\n" + " fldln2""\n" + " fisttpll res64""\n" + : : : "memory" + ); + /* Test truncation to zero (round-to-nearest would give 1 here) */ + if (res16 != 0 || res32 != 0 || res64 != 0) { + printf("[BAD]\tfisttp ln2\n"); + return 1; + } + ex = fetestexcept(FE_DIVBYZERO|FE_INEXACT|FE_INVALID|FE_OVERFLOW|FE_UNDERFLOW); + if (ex != FE_INEXACT) { + printf("[BAD]\tfisttp ln2: wrong exception state\n"); + return 1; + } + + return 0; +} + +void sighandler(int sig) +{ + printf("[FAIL]\tGot signal %d, exiting\n", sig); + exit(1); +} + +int main(int argc, char **argv, char **envp) +{ + int err = 0; + + /* SIGILL triggers on 32-bit kernels w/o fisttp emulation + * when run with "no387 nofxsr". Other signals are caught + * just in case. + */ + signal(SIGILL, sighandler); + signal(SIGFPE, sighandler); + signal(SIGSEGV, sighandler); + + printf("[RUN]\tTesting fisttp instructions\n"); + err |= test(); + if (!err) + printf("[OK]\tfisttp\n"); + else + printf("[FAIL]\tfisttp errors: %d\n", err); + + return err; +} diff --git a/tools/testing/selftests/x86/test_syscall_vdso.c b/tools/testing/selftests/x86/test_syscall_vdso.c new file mode 100644 index 000000000..40370354d --- /dev/null +++ b/tools/testing/selftests/x86/test_syscall_vdso.c @@ -0,0 +1,401 @@ +/* + * 32-bit syscall ABI conformance test. + * + * Copyright (c) 2015 Denys Vlasenko + * + * This program is free software; you can redistribute it and/or modify + * it under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ +/* + * Can be built statically: + * gcc -Os -Wall -static -m32 test_syscall_vdso.c thunks_32.S + */ +#undef _GNU_SOURCE +#define _GNU_SOURCE 1 +#undef __USE_GNU +#define __USE_GNU 1 +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <signal.h> +#include <sys/types.h> +#include <sys/select.h> +#include <sys/time.h> +#include <elf.h> +#include <sys/ptrace.h> +#include <sys/wait.h> + +#if !defined(__i386__) +int main(int argc, char **argv, char **envp) +{ + printf("[SKIP]\tNot a 32-bit x86 userspace\n"); + return 0; +} +#else + +long syscall_addr; +long get_syscall(char **envp) +{ + Elf32_auxv_t *auxv; + while (*envp++ != NULL) + continue; + for (auxv = (void *)envp; auxv->a_type != AT_NULL; auxv++) + if (auxv->a_type == AT_SYSINFO) + return auxv->a_un.a_val; + printf("[WARN]\tAT_SYSINFO not supplied\n"); + return 0; +} + +asm ( + " .pushsection .text\n" + " .global int80\n" + "int80:\n" + " int $0x80\n" + " ret\n" + " .popsection\n" +); +extern char int80; + +struct regs64 { + uint64_t rax, rbx, rcx, rdx; + uint64_t rsi, rdi, rbp, rsp; + uint64_t r8, r9, r10, r11; + uint64_t r12, r13, r14, r15; +}; +struct regs64 regs64; +int kernel_is_64bit; + +asm ( + " .pushsection .text\n" + " .code64\n" + "get_regs64:\n" + " push %rax\n" + " mov $regs64, %eax\n" + " pop 0*8(%rax)\n" + " movq %rbx, 1*8(%rax)\n" + " movq %rcx, 2*8(%rax)\n" + " movq %rdx, 3*8(%rax)\n" + " movq %rsi, 4*8(%rax)\n" + " movq %rdi, 5*8(%rax)\n" + " movq %rbp, 6*8(%rax)\n" + " movq %rsp, 7*8(%rax)\n" + " movq %r8, 8*8(%rax)\n" + " movq %r9, 9*8(%rax)\n" + " movq %r10, 10*8(%rax)\n" + " movq %r11, 11*8(%rax)\n" + " movq %r12, 12*8(%rax)\n" + " movq %r13, 13*8(%rax)\n" + " movq %r14, 14*8(%rax)\n" + " movq %r15, 15*8(%rax)\n" + " ret\n" + "poison_regs64:\n" + " movq $0x7f7f7f7f, %r8\n" + " shl $32, %r8\n" + " orq $0x7f7f7f7f, %r8\n" + " movq %r8, %r9\n" + " movq %r8, %r10\n" + " movq %r8, %r11\n" + " movq %r8, %r12\n" + " movq %r8, %r13\n" + " movq %r8, %r14\n" + " movq %r8, %r15\n" + " ret\n" + " .code32\n" + " .popsection\n" +); +extern void get_regs64(void); +extern void poison_regs64(void); +extern unsigned long call64_from_32(void (*function)(void)); +void print_regs64(void) +{ + if (!kernel_is_64bit) + return; + printf("ax:%016llx bx:%016llx cx:%016llx dx:%016llx\n", regs64.rax, regs64.rbx, regs64.rcx, regs64.rdx); + printf("si:%016llx di:%016llx bp:%016llx sp:%016llx\n", regs64.rsi, regs64.rdi, regs64.rbp, regs64.rsp); + printf(" 8:%016llx 9:%016llx 10:%016llx 11:%016llx\n", regs64.r8 , regs64.r9 , regs64.r10, regs64.r11); + printf("12:%016llx 13:%016llx 14:%016llx 15:%016llx\n", regs64.r12, regs64.r13, regs64.r14, regs64.r15); +} + +int check_regs64(void) +{ + int err = 0; + int num = 8; + uint64_t *r64 = ®s64.r8; + + if (!kernel_is_64bit) + return 0; + + do { + if (*r64 == 0x7f7f7f7f7f7f7f7fULL) + continue; /* register did not change */ + if (syscall_addr != (long)&int80) { + /* + * Non-INT80 syscall entrypoints are allowed to clobber R8+ regs: + * either clear them to 0, or for R11, load EFLAGS. + */ + if (*r64 == 0) + continue; + if (num == 11) { + printf("[NOTE]\tR11 has changed:%016llx - assuming clobbered by SYSRET insn\n", *r64); + continue; + } + } else { + /* INT80 syscall entrypoint can be used by + * 64-bit programs too, unlike SYSCALL/SYSENTER. + * Therefore it must preserve R12+ + * (they are callee-saved registers in 64-bit C ABI). + * + * This was probably historically not intended, + * but R8..11 are clobbered (cleared to 0). + * IOW: they are the only registers which aren't + * preserved across INT80 syscall. + */ + if (*r64 == 0 && num <= 11) + continue; + } + printf("[FAIL]\tR%d has changed:%016llx\n", num, *r64); + err++; + } while (r64++, ++num < 16); + + if (!err) + printf("[OK]\tR8..R15 did not leak kernel data\n"); + return err; +} + +int nfds; +fd_set rfds; +fd_set wfds; +fd_set efds; +struct timespec timeout; +sigset_t sigmask; +struct { + sigset_t *sp; + int sz; +} sigmask_desc; + +void prep_args() +{ + nfds = 42; + FD_ZERO(&rfds); + FD_ZERO(&wfds); + FD_ZERO(&efds); + FD_SET(0, &rfds); + FD_SET(1, &wfds); + FD_SET(2, &efds); + timeout.tv_sec = 0; + timeout.tv_nsec = 123; + sigemptyset(&sigmask); + sigaddset(&sigmask, SIGINT); + sigaddset(&sigmask, SIGUSR2); + sigaddset(&sigmask, SIGRTMAX); + sigmask_desc.sp = &sigmask; + sigmask_desc.sz = 8; /* bytes */ +} + +static void print_flags(const char *name, unsigned long r) +{ + static const char *bitarray[] = { + "\n" ,"c\n" ,/* Carry Flag */ + "0 " ,"1 " ,/* Bit 1 - always on */ + "" ,"p " ,/* Parity Flag */ + "0 " ,"3? " , + "" ,"a " ,/* Auxiliary carry Flag */ + "0 " ,"5? " , + "" ,"z " ,/* Zero Flag */ + "" ,"s " ,/* Sign Flag */ + "" ,"t " ,/* Trap Flag */ + "" ,"i " ,/* Interrupt Flag */ + "" ,"d " ,/* Direction Flag */ + "" ,"o " ,/* Overflow Flag */ + "0 " ,"1 " ,/* I/O Privilege Level (2 bits) */ + "0" ,"1" ,/* I/O Privilege Level (2 bits) */ + "" ,"n " ,/* Nested Task */ + "0 " ,"15? ", + "" ,"r " ,/* Resume Flag */ + "" ,"v " ,/* Virtual Mode */ + "" ,"ac " ,/* Alignment Check/Access Control */ + "" ,"vif ",/* Virtual Interrupt Flag */ + "" ,"vip ",/* Virtual Interrupt Pending */ + "" ,"id " ,/* CPUID detection */ + NULL + }; + const char **bitstr; + int bit; + + printf("%s=%016lx ", name, r); + bitstr = bitarray + 42; + bit = 21; + if ((r >> 22) != 0) + printf("(extra bits are set) "); + do { + if (bitstr[(r >> bit) & 1][0]) + fputs(bitstr[(r >> bit) & 1], stdout); + bitstr -= 2; + bit--; + } while (bit >= 0); +} + +int run_syscall(void) +{ + long flags, bad_arg; + + prep_args(); + + if (kernel_is_64bit) + call64_from_32(poison_regs64); + /*print_regs64();*/ + + asm("\n" + /* Try 6-arg syscall: pselect. It should return quickly */ + " push %%ebp\n" + " mov $308, %%eax\n" /* PSELECT */ + " mov nfds, %%ebx\n" /* ebx arg1 */ + " mov $rfds, %%ecx\n" /* ecx arg2 */ + " mov $wfds, %%edx\n" /* edx arg3 */ + " mov $efds, %%esi\n" /* esi arg4 */ + " mov $timeout, %%edi\n" /* edi arg5 */ + " mov $sigmask_desc, %%ebp\n" /* %ebp arg6 */ + " push $0x200ed7\n" /* set almost all flags */ + " popf\n" /* except TF, IOPL, NT, RF, VM, AC, VIF, VIP */ + " call *syscall_addr\n" + /* Check that registers are not clobbered */ + " pushf\n" + " pop %%eax\n" + " cld\n" + " cmp nfds, %%ebx\n" /* ebx arg1 */ + " mov $1, %%ebx\n" + " jne 1f\n" + " cmp $rfds, %%ecx\n" /* ecx arg2 */ + " mov $2, %%ebx\n" + " jne 1f\n" + " cmp $wfds, %%edx\n" /* edx arg3 */ + " mov $3, %%ebx\n" + " jne 1f\n" + " cmp $efds, %%esi\n" /* esi arg4 */ + " mov $4, %%ebx\n" + " jne 1f\n" + " cmp $timeout, %%edi\n" /* edi arg5 */ + " mov $5, %%ebx\n" + " jne 1f\n" + " cmpl $sigmask_desc, %%ebp\n" /* %ebp arg6 */ + " mov $6, %%ebx\n" + " jne 1f\n" + " mov $0, %%ebx\n" + "1:\n" + " pop %%ebp\n" + : "=a" (flags), "=b" (bad_arg) + : + : "cx", "dx", "si", "di" + ); + + if (kernel_is_64bit) { + memset(®s64, 0x77, sizeof(regs64)); + call64_from_32(get_regs64); + /*print_regs64();*/ + } + + /* + * On paravirt kernels, flags are not preserved across syscalls. + * Thus, we do not consider it a bug if some are changed. + * We just show ones which do. + */ + if ((0x200ed7 ^ flags) != 0) { + print_flags("[WARN]\tFlags before", 0x200ed7); + print_flags("[WARN]\tFlags after", flags); + print_flags("[WARN]\tFlags change", (0x200ed7 ^ flags)); + } + + if (bad_arg) { + printf("[FAIL]\targ#%ld clobbered\n", bad_arg); + return 1; + } + printf("[OK]\tArguments are preserved across syscall\n"); + + return check_regs64(); +} + +int run_syscall_twice() +{ + int exitcode = 0; + long sv; + + if (syscall_addr) { + printf("[RUN]\tExecuting 6-argument 32-bit syscall via VDSO\n"); + exitcode = run_syscall(); + } + sv = syscall_addr; + syscall_addr = (long)&int80; + printf("[RUN]\tExecuting 6-argument 32-bit syscall via INT 80\n"); + exitcode += run_syscall(); + syscall_addr = sv; + return exitcode; +} + +void ptrace_me() +{ + pid_t pid; + + fflush(NULL); + pid = fork(); + if (pid < 0) + exit(1); + if (pid == 0) { + /* child */ + if (ptrace(PTRACE_TRACEME, 0L, 0L, 0L) != 0) + exit(0); + raise(SIGSTOP); + return; + } + /* parent */ + printf("[RUN]\tRunning tests under ptrace\n"); + while (1) { + int status; + pid = waitpid(-1, &status, __WALL); + if (WIFEXITED(status)) + exit(WEXITSTATUS(status)); + if (WIFSIGNALED(status)) + exit(WTERMSIG(status)); + if (pid <= 0 || !WIFSTOPPED(status)) /* paranoia */ + exit(255); + /* + * Note: we do not inject sig = WSTOPSIG(status). + * We probably should, but careful: do not inject SIGTRAP + * generated by syscall entry/exit stops. + * That kills the child. + */ + ptrace(PTRACE_SYSCALL, pid, 0L, 0L /*sig*/); + } +} + +int main(int argc, char **argv, char **envp) +{ + int exitcode = 0; + int cs; + + asm("\n" + " movl %%cs, %%eax\n" + : "=a" (cs) + ); + kernel_is_64bit = (cs == 0x23); + if (!kernel_is_64bit) + printf("[NOTE]\tNot a 64-bit kernel, won't test R8..R15 leaks\n"); + + /* This only works for non-static builds: + * syscall_addr = dlsym(dlopen("linux-gate.so.1", RTLD_NOW), "__kernel_vsyscall"); + */ + syscall_addr = get_syscall(envp); + + exitcode += run_syscall_twice(); + ptrace_me(); + exitcode += run_syscall_twice(); + + return exitcode; +} +#endif diff --git a/tools/testing/selftests/x86/thunks_32.S b/tools/testing/selftests/x86/thunks_32.S new file mode 100644 index 000000000..29b644bb9 --- /dev/null +++ b/tools/testing/selftests/x86/thunks_32.S @@ -0,0 +1,55 @@ +/* + * thunks_32.S - assembly helpers for mixed-bitness code + * Copyright (c) 2015 Denys Vlasenko + * + * This program is free software; you can redistribute it and/or modify + * it under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * These are little helpers that make it easier to switch bitness on + * the fly. + */ + + .text + .code32 + + .global call64_from_32 + .type call32_from_64, @function + + // 4(%esp): function to call +call64_from_32: + // Fetch function address + mov 4(%esp), %eax + + // Save registers which are callee-clobbered by 64-bit ABI + push %ecx + push %edx + push %esi + push %edi + + // Switch to long mode + jmp $0x33,$1f +1: .code64 + + // Call the function + call *%rax + + // Switch to compatibility mode + push $0x23 /* USER32_CS */ + .code32; push $1f; .code64 /* hack: can't have X86_64_32S relocation in 32-bit ELF */ + lretq +1: .code32 + + pop %edi + pop %esi + pop %edx + pop %ecx + + ret + +.size call64_from_32, .-call64_from_32 diff --git a/tools/testing/selftests/x86/unwind_vdso.c b/tools/testing/selftests/x86/unwind_vdso.c new file mode 100644 index 000000000..00a26a82f --- /dev/null +++ b/tools/testing/selftests/x86/unwind_vdso.c @@ -0,0 +1,211 @@ +/* + * unwind_vdso.c - tests unwind info for AT_SYSINFO in the vDSO + * Copyright (c) 2014-2015 Andrew Lutomirski + * + * This program is free software; you can redistribute it and/or modify + * it under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * This tests __kernel_vsyscall's unwind info. + */ + +#define _GNU_SOURCE + +#include <features.h> +#include <stdio.h> + +#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ < 16 + +int main() +{ + /* We need getauxval(). */ + printf("[SKIP]\tGLIBC before 2.16 cannot compile this test\n"); + return 0; +} + +#else + +#include <sys/time.h> +#include <stdlib.h> +#include <syscall.h> +#include <unistd.h> +#include <string.h> +#include <inttypes.h> +#include <sys/mman.h> +#include <signal.h> +#include <sys/ucontext.h> +#include <err.h> +#include <stddef.h> +#include <stdbool.h> +#include <sys/ptrace.h> +#include <sys/user.h> +#include <sys/ucontext.h> +#include <link.h> +#include <sys/auxv.h> +#include <dlfcn.h> +#include <unwind.h> + +static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *), + int flags) +{ + struct sigaction sa; + memset(&sa, 0, sizeof(sa)); + sa.sa_sigaction = handler; + sa.sa_flags = SA_SIGINFO | flags; + sigemptyset(&sa.sa_mask); + if (sigaction(sig, &sa, 0)) + err(1, "sigaction"); +} + +#ifdef __x86_64__ +# define WIDTH "q" +#else +# define WIDTH "l" +#endif + +static unsigned long get_eflags(void) +{ + unsigned long eflags; + asm volatile ("pushf" WIDTH "\n\tpop" WIDTH " %0" : "=rm" (eflags)); + return eflags; +} + +static void set_eflags(unsigned long eflags) +{ + asm volatile ("push" WIDTH " %0\n\tpopf" WIDTH + : : "rm" (eflags) : "flags"); +} + +#define X86_EFLAGS_TF (1UL << 8) + +static volatile sig_atomic_t nerrs; +static unsigned long sysinfo; +static bool got_sysinfo = false; +static unsigned long return_address; + +struct unwind_state { + unsigned long ip; /* trap source */ + int depth; /* -1 until we hit the trap source */ +}; + +_Unwind_Reason_Code trace_fn(struct _Unwind_Context * ctx, void *opaque) +{ + struct unwind_state *state = opaque; + unsigned long ip = _Unwind_GetIP(ctx); + + if (state->depth == -1) { + if (ip == state->ip) + state->depth = 0; + else + return _URC_NO_REASON; /* Not there yet */ + } + printf("\t 0x%lx\n", ip); + + if (ip == return_address) { + /* Here we are. */ + unsigned long eax = _Unwind_GetGR(ctx, 0); + unsigned long ecx = _Unwind_GetGR(ctx, 1); + unsigned long edx = _Unwind_GetGR(ctx, 2); + unsigned long ebx = _Unwind_GetGR(ctx, 3); + unsigned long ebp = _Unwind_GetGR(ctx, 5); + unsigned long esi = _Unwind_GetGR(ctx, 6); + unsigned long edi = _Unwind_GetGR(ctx, 7); + bool ok = (eax == SYS_getpid || eax == getpid()) && + ebx == 1 && ecx == 2 && edx == 3 && + esi == 4 && edi == 5 && ebp == 6; + + if (!ok) + nerrs++; + printf("[%s]\t NR = %ld, args = %ld, %ld, %ld, %ld, %ld, %ld\n", + (ok ? "OK" : "FAIL"), + eax, ebx, ecx, edx, esi, edi, ebp); + + return _URC_NORMAL_STOP; + } else { + state->depth++; + return _URC_NO_REASON; + } +} + +static void sigtrap(int sig, siginfo_t *info, void *ctx_void) +{ + ucontext_t *ctx = (ucontext_t *)ctx_void; + struct unwind_state state; + unsigned long ip = ctx->uc_mcontext.gregs[REG_EIP]; + + if (!got_sysinfo && ip == sysinfo) { + got_sysinfo = true; + + /* Find the return address. */ + return_address = *(unsigned long *)(unsigned long)ctx->uc_mcontext.gregs[REG_ESP]; + + printf("\tIn vsyscall at 0x%lx, returning to 0x%lx\n", + ip, return_address); + } + + if (!got_sysinfo) + return; /* Not there yet */ + + if (ip == return_address) { + ctx->uc_mcontext.gregs[REG_EFL] &= ~X86_EFLAGS_TF; + printf("\tVsyscall is done\n"); + return; + } + + printf("\tSIGTRAP at 0x%lx\n", ip); + + state.ip = ip; + state.depth = -1; + _Unwind_Backtrace(trace_fn, &state); +} + +int main() +{ + sysinfo = getauxval(AT_SYSINFO); + printf("\tAT_SYSINFO is 0x%lx\n", sysinfo); + + Dl_info info; + if (!dladdr((void *)sysinfo, &info)) { + printf("[WARN]\tdladdr failed on AT_SYSINFO\n"); + } else { + printf("[OK]\tAT_SYSINFO maps to %s, loaded at 0x%p\n", + info.dli_fname, info.dli_fbase); + } + + sethandler(SIGTRAP, sigtrap, 0); + + syscall(SYS_getpid); /* Force symbol binding without TF set. */ + printf("[RUN]\tSet TF and check a fast syscall\n"); + set_eflags(get_eflags() | X86_EFLAGS_TF); + syscall(SYS_getpid, 1, 2, 3, 4, 5, 6); + if (!got_sysinfo) { + set_eflags(get_eflags() & ~X86_EFLAGS_TF); + + /* + * The most likely cause of this is that you're on Debian or + * a Debian-based distro, you're missing libc6-i686, and you're + * affected by libc/19006 (https://sourceware.org/PR19006). + */ + printf("[WARN]\tsyscall(2) didn't enter AT_SYSINFO\n"); + } + + if (get_eflags() & X86_EFLAGS_TF) { + printf("[FAIL]\tTF is still set\n"); + nerrs++; + } + + if (nerrs) { + printf("[FAIL]\tThere were errors\n"); + return 1; + } else { + printf("[OK]\tAll is well\n"); + return 0; + } +} + +#endif /* New enough libc */ diff --git a/tools/thermal/tmon/Makefile b/tools/thermal/tmon/Makefile index 2e83dd365..3a961e998 100644 --- a/tools/thermal/tmon/Makefile +++ b/tools/thermal/tmon/Makefile @@ -22,6 +22,9 @@ TMON_LIBS += $(shell pkg-config --libs $(STATIC) panelw ncursesw 2> /dev/null || pkg-config --libs $(STATIC) panel ncurses 2> /dev/null || \ echo -lpanel -lncurses) +CFLAGS += $(shell pkg-config --cflags $(STATIC) panelw ncursesw 2> /dev/null || \ + pkg-config --cflags $(STATIC) panel ncurses 2> /dev/null) + OBJS = tmon.o tui.o sysfs.o pid.o OBJS += diff --git a/tools/usb/testusb.c b/tools/usb/testusb.c index 879f9870a..0692d99b6 100644 --- a/tools/usb/testusb.c +++ b/tools/usb/testusb.c @@ -394,7 +394,7 @@ int main (int argc, char **argv) * low speed, interrupt 8 * 1 = 8 */ param.iterations = 1000; - param.length = 512; + param.length = 1024; param.vary = 512; param.sglen = 32; @@ -454,10 +454,10 @@ usage: "\t-t testnum only run specified case\n" "\t-n no test running, show devices to be tested\n" "Case arguments:\n" - "\t-c iterations default 1000\n" - "\t-s packetsize default 512\n" - "\t-g sglen default 32\n" - "\t-v vary default 512\n", + "\t-c iterations default 1000\n" + "\t-s transfer length default 1024\n" + "\t-g sglen default 32\n" + "\t-v vary default 512\n", argv[0]); return 1; } diff --git a/tools/usb/usbip/src/usbip_detach.c b/tools/usb/usbip/src/usbip_detach.c index 05c6d1585..9db9d21bb 100644 --- a/tools/usb/usbip/src/usbip_detach.c +++ b/tools/usb/usbip/src/usbip_detach.c @@ -47,7 +47,9 @@ static int detach_port(char *port) uint8_t portnum; char path[PATH_MAX+1]; - for (unsigned int i = 0; i < strlen(port); i++) + unsigned int port_len = strlen(port); + + for (unsigned int i = 0; i < port_len; i++) if (!isdigit(port[i])) { err("invalid port %s", port); return -1; diff --git a/tools/virtio/linux/kernel.h b/tools/virtio/linux/kernel.h index 0a3da6463..4db7d5691 100644 --- a/tools/virtio/linux/kernel.h +++ b/tools/virtio/linux/kernel.h @@ -110,4 +110,10 @@ static inline void free_page(unsigned long addr) (void) (&_min1 == &_min2); \ _min1 < _min2 ? _min1 : _min2; }) +/* TODO: empty stubs for now. Broken but enough for virtio_ring.c */ +#define list_add_tail(a, b) do {} while (0) +#define list_del(a) do {} while (0) +#define list_for_each_entry(a, b, c) while (0) +/* end of stubs */ + #endif /* KERNEL_H */ diff --git a/tools/virtio/linux/virtio.h b/tools/virtio/linux/virtio.h index a3e07016a..ee125e714 100644 --- a/tools/virtio/linux/virtio.h +++ b/tools/virtio/linux/virtio.h @@ -3,12 +3,6 @@ #include <linux/scatterlist.h> #include <linux/kernel.h> -/* TODO: empty stubs for now. Broken but enough for virtio_ring.c */ -#define list_add_tail(a, b) do {} while (0) -#define list_del(a) do {} while (0) -#define list_for_each_entry(a, b, c) while (0) -/* end of stubs */ - struct virtio_device { void *dev; u64 features; diff --git a/tools/virtio/linux/virtio_config.h b/tools/virtio/linux/virtio_config.h index 806d683ab..57a6964a1 100644 --- a/tools/virtio/linux/virtio_config.h +++ b/tools/virtio/linux/virtio_config.h @@ -40,33 +40,39 @@ static inline void __virtio_clear_bit(struct virtio_device *vdev, #define virtio_has_feature(dev, feature) \ (__virtio_test_bit((dev), feature)) +static inline bool virtio_is_little_endian(struct virtio_device *vdev) +{ + return virtio_has_feature(vdev, VIRTIO_F_VERSION_1) || + virtio_legacy_is_little_endian(); +} + +/* Memory accessors */ static inline u16 virtio16_to_cpu(struct virtio_device *vdev, __virtio16 val) { - return __virtio16_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); + return __virtio16_to_cpu(virtio_is_little_endian(vdev), val); } static inline __virtio16 cpu_to_virtio16(struct virtio_device *vdev, u16 val) { - return __cpu_to_virtio16(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); + return __cpu_to_virtio16(virtio_is_little_endian(vdev), val); } static inline u32 virtio32_to_cpu(struct virtio_device *vdev, __virtio32 val) { - return __virtio32_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); + return __virtio32_to_cpu(virtio_is_little_endian(vdev), val); } static inline __virtio32 cpu_to_virtio32(struct virtio_device *vdev, u32 val) { - return __cpu_to_virtio32(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); + return __cpu_to_virtio32(virtio_is_little_endian(vdev), val); } static inline u64 virtio64_to_cpu(struct virtio_device *vdev, __virtio64 val) { - return __virtio64_to_cpu(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); + return __virtio64_to_cpu(virtio_is_little_endian(vdev), val); } static inline __virtio64 cpu_to_virtio64(struct virtio_device *vdev, u64 val) { - return __cpu_to_virtio64(virtio_has_feature(vdev, VIRTIO_F_VERSION_1), val); + return __cpu_to_virtio64(virtio_is_little_endian(vdev), val); } - diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c index 7f73fa32a..5a6016224 100644 --- a/tools/vm/page-types.c +++ b/tools/vm/page-types.c @@ -42,7 +42,7 @@ #include <sys/mman.h> #include "../../include/uapi/linux/magic.h" #include "../../include/uapi/linux/kernel-page-flags.h" -#include <api/fs/debugfs.h> +#include <api/fs/fs.h> #ifndef MAX_PATH # define MAX_PATH 256 @@ -128,6 +128,7 @@ static const char * const page_flag_names[] = { [KPF_THP] = "t:thp", [KPF_BALLOON] = "o:balloon", [KPF_ZERO_PAGE] = "z:zero_page", + [KPF_IDLE] = "i:idle_page", [KPF_RESERVED] = "r:reserved", [KPF_MLOCKED] = "m:mlocked", @@ -188,7 +189,7 @@ static int kpageflags_fd; static int opt_hwpoison; static int opt_unpoison; -static char *hwpoison_debug_fs; +static const char *hwpoison_debug_fs; static int hwpoison_inject_fd; static int hwpoison_forget_fd; @@ -487,7 +488,7 @@ static void prepare_hwpoison_fd(void) { char buf[MAX_PATH + 1]; - hwpoison_debug_fs = debugfs_mount(NULL); + hwpoison_debug_fs = debugfs__mount(); if (!hwpoison_debug_fs) { perror("mount debugfs"); exit(EXIT_FAILURE); diff --git a/tools/vm/slabinfo-gnuplot.sh b/tools/vm/slabinfo-gnuplot.sh new file mode 100644 index 000000000..35b039864 --- /dev/null +++ b/tools/vm/slabinfo-gnuplot.sh @@ -0,0 +1,275 @@ +#!/bin/sh + +# Sergey Senozhatsky, 2015 +# sergey.senozhatsky.work@gmail.com +# +# This software is licensed under the terms of the GNU General Public +# License version 2, as published by the Free Software Foundation, and +# may be copied, distributed, and modified under those terms. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + + +# This program is intended to plot a `slabinfo -X' stats, collected, +# for example, using the following command: +# while [ 1 ]; do slabinfo -X >> stats; sleep 1; done +# +# Use `slabinfo-gnuplot.sh stats' to pre-process collected records +# and generate graphs (totals, slabs sorted by size, slabs sorted +# by size). +# +# Graphs can be [individually] regenerate with different ranges and +# size (-r %d,%d and -s %d,%d options). +# +# To visually compare N `totals' graphs, do +# slabinfo-gnuplot.sh -t FILE1-totals FILE2-totals ... FILEN-totals +# + +min_slab_name_size=11 +xmin=0 +xmax=0 +width=1500 +height=700 +mode=preprocess + +usage() +{ + echo "Usage: [-s W,H] [-r MIN,MAX] [-t|-l] FILE1 [FILE2 ..]" + echo "FILEs must contain 'slabinfo -X' samples" + echo "-t - plot totals for FILE(s)" + echo "-l - plot slabs stats for FILE(s)" + echo "-s %d,%d - set image width and height" + echo "-r %d,%d - use data samples from a given range" +} + +check_file_exist() +{ + if [ ! -f "$1" ]; then + echo "File '$1' does not exist" + exit 1 + fi +} + +do_slabs_plotting() +{ + local file=$1 + local out_file + local range="every ::$xmin" + local xtic="" + local xtic_rotate="norotate" + local lines=2000000 + local wc_lines + + check_file_exist "$file" + + out_file=`basename "$file"` + if [ $xmax -ne 0 ]; then + range="$range::$xmax" + lines=$((xmax-xmin)) + fi + + wc_lines=`cat "$file" | wc -l` + if [ $? -ne 0 ] || [ "$wc_lines" -eq 0 ] ; then + wc_lines=$lines + fi + + if [ "$wc_lines" -lt "$lines" ]; then + lines=$wc_lines + fi + + if [ $((width / lines)) -gt $min_slab_name_size ]; then + xtic=":xtic(1)" + xtic_rotate=90 + fi + +gnuplot -p << EOF +#!/usr/bin/env gnuplot + +set terminal png enhanced size $width,$height large +set output '$out_file.png' +set autoscale xy +set xlabel 'samples' +set ylabel 'bytes' +set style histogram columnstacked title textcolor lt -1 +set style fill solid 0.15 +set xtics rotate $xtic_rotate +set key left above Left title reverse + +plot "$file" $range u 2$xtic title 'SIZE' with boxes,\ + '' $range u 3 title 'LOSS' with boxes +EOF + + if [ $? -eq 0 ]; then + echo "$out_file.png" + fi +} + +do_totals_plotting() +{ + local gnuplot_cmd="" + local range="every ::$xmin" + local file="" + + if [ $xmax -ne 0 ]; then + range="$range::$xmax" + fi + + for i in "${t_files[@]}"; do + check_file_exist "$i" + + file="$file"`basename "$i"` + gnuplot_cmd="$gnuplot_cmd '$i' $range using 1 title\ + '$i Memory usage' with lines," + gnuplot_cmd="$gnuplot_cmd '' $range using 2 title \ + '$i Loss' with lines," + done + +gnuplot -p << EOF +#!/usr/bin/env gnuplot + +set terminal png enhanced size $width,$height large +set autoscale xy +set output '$file.png' +set xlabel 'samples' +set ylabel 'bytes' +set key left above Left title reverse + +plot $gnuplot_cmd +EOF + + if [ $? -eq 0 ]; then + echo "$file.png" + fi +} + +do_preprocess() +{ + local out + local lines + local in=$1 + + check_file_exist "$in" + + # use only 'TOP' slab (biggest memory usage or loss) + let lines=3 + out=`basename "$in"`"-slabs-by-loss" + `cat "$in" | grep -A "$lines" 'Slabs sorted by loss' |\ + egrep -iv '\-\-|Name|Slabs'\ + | awk '{print $1" "$4+$2*$3" "$4}' > "$out"` + if [ $? -eq 0 ]; then + do_slabs_plotting "$out" + fi + + let lines=3 + out=`basename "$in"`"-slabs-by-size" + `cat "$in" | grep -A "$lines" 'Slabs sorted by size' |\ + egrep -iv '\-\-|Name|Slabs'\ + | awk '{print $1" "$4" "$4-$2*$3}' > "$out"` + if [ $? -eq 0 ]; then + do_slabs_plotting "$out" + fi + + out=`basename "$in"`"-totals" + `cat "$in" | grep "Memory used" |\ + awk '{print $3" "$7}' > "$out"` + if [ $? -eq 0 ]; then + t_files[0]=$out + do_totals_plotting + fi +} + +parse_opts() +{ + local opt + + while getopts "tlr::s::h" opt; do + case $opt in + t) + mode=totals + ;; + l) + mode=slabs + ;; + s) + array=(${OPTARG//,/ }) + width=${array[0]} + height=${array[1]} + ;; + r) + array=(${OPTARG//,/ }) + xmin=${array[0]} + xmax=${array[1]} + ;; + h) + usage + exit 0 + ;; + \?) + echo "Invalid option: -$OPTARG" >&2 + exit 1 + ;; + :) + echo "-$OPTARG requires an argument." >&2 + exit 1 + ;; + esac + done + + return $OPTIND +} + +parse_args() +{ + local idx=0 + local p + + for p in "$@"; do + case $mode in + preprocess) + files[$idx]=$p + idx=$idx+1 + ;; + totals) + t_files[$idx]=$p + idx=$idx+1 + ;; + slabs) + files[$idx]=$p + idx=$idx+1 + ;; + esac + done +} + +parse_opts "$@" +argstart=$? +parse_args "${@:$argstart}" + +if [ ${#files[@]} -eq 0 ] && [ ${#t_files[@]} -eq 0 ]; then + usage + exit 1 +fi + +case $mode in + preprocess) + for i in "${files[@]}"; do + do_preprocess "$i" + done + ;; + totals) + do_totals_plotting + ;; + slabs) + for i in "${files[@]}"; do + do_slabs_plotting "$i" + done + ;; + *) + echo "Unknown mode $mode" >&2 + usage + exit 1 + ;; +esac diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c index 808d5a9d5..86e698d07 100644 --- a/tools/vm/slabinfo.c +++ b/tools/vm/slabinfo.c @@ -53,39 +53,43 @@ struct aliasinfo { struct slabinfo *slab; } aliasinfo[MAX_ALIASES]; -int slabs = 0; -int actual_slabs = 0; -int aliases = 0; -int alias_targets = 0; -int highest_node = 0; +int slabs; +int actual_slabs; +int aliases; +int alias_targets; +int highest_node; char buffer[4096]; -int show_empty = 0; -int show_report = 0; -int show_alias = 0; -int show_slab = 0; +int show_empty; +int show_report; +int show_alias; +int show_slab; int skip_zero = 1; -int show_numa = 0; -int show_track = 0; -int show_first_alias = 0; -int validate = 0; -int shrink = 0; -int show_inverted = 0; -int show_single_ref = 0; -int show_totals = 0; -int sort_size = 0; -int sort_active = 0; -int set_debug = 0; -int show_ops = 0; -int show_activity = 0; +int show_numa; +int show_track; +int show_first_alias; +int validate; +int shrink; +int show_inverted; +int show_single_ref; +int show_totals; +int sort_size; +int sort_active; +int set_debug; +int show_ops; +int show_activity; +int output_lines = -1; +int sort_loss; +int extended_totals; +int show_bytes; /* Debug options */ -int sanity = 0; -int redzone = 0; -int poison = 0; -int tracking = 0; -int tracing = 0; +int sanity; +int redzone; +int poison; +int tracking; +int tracing; int page_size; @@ -124,6 +128,10 @@ static void usage(void) "-v|--validate Validate slabs\n" "-z|--zero Include empty slabs\n" "-1|--1ref Single reference\n" + "-N|--lines=K Show the first K slabs\n" + "-L|--Loss Sort by loss\n" + "-X|--Xtotals Show extended summary information\n" + "-B|--Bytes Show size in bytes\n" "\nValid debug options (FZPUT may be combined)\n" "a / A Switch on all debug options (=FZUP)\n" "- Switch off all debug options\n" @@ -225,15 +233,17 @@ static int store_size(char *buffer, unsigned long value) char trailer = 0; int n; - if (value > 1000000000UL) { - divisor = 100000000UL; - trailer = 'G'; - } else if (value > 1000000UL) { - divisor = 100000UL; - trailer = 'M'; - } else if (value > 1000UL) { - divisor = 100; - trailer = 'K'; + if (!show_bytes) { + if (value > 1000000000UL) { + divisor = 100000000UL; + trailer = 'G'; + } else if (value > 1000000UL) { + divisor = 100000UL; + trailer = 'M'; + } else if (value > 1000UL) { + divisor = 100; + trailer = 'K'; + } } value /= divisor; @@ -297,10 +307,12 @@ int line = 0; static void first_line(void) { if (show_activity) - printf("Name Objects Alloc Free %%Fast Fallb O CmpX UL\n"); + printf("Name Objects Alloc Free" + " %%Fast Fallb O CmpX UL\n"); else - printf("Name Objects Objsize Space " - "Slabs/Part/Cpu O/S O %%Fr %%Ef Flg\n"); + printf("Name Objects Objsize %s " + "Slabs/Part/Cpu O/S O %%Fr %%Ef Flg\n", + sort_loss ? " Loss" : "Space"); } /* @@ -333,6 +345,11 @@ static unsigned long slab_activity(struct slabinfo *s) s->alloc_slowpath + s->free_slowpath; } +static unsigned long slab_waste(struct slabinfo *s) +{ + return slab_size(s) - s->objects * s->object_size; +} + static void slab_numa(struct slabinfo *s, int mode) { int node; @@ -504,7 +521,7 @@ static void report(struct slabinfo *s) if (strcmp(s->name, "*") == 0) return; - printf("\nSlabcache: %-20s Aliases: %2d Order : %2d Objects: %lu\n", + printf("\nSlabcache: %-15s Aliases: %2d Order : %2d Objects: %lu\n", s->name, s->aliases, s->order, s->objects); if (s->hwcache_align) printf("** Hardware cacheline aligned\n"); @@ -561,7 +578,10 @@ static void slabcache(struct slabinfo *s) if (show_empty && s->slabs) return; - store_size(size_str, slab_size(s)); + if (sort_loss == 0) + store_size(size_str, slab_size(s)); + else + store_size(size_str, slab_waste(s)); snprintf(dist_str, 40, "%lu/%lu/%d", s->slabs - s->cpu_slabs, s->partial, s->cpu_slabs); @@ -602,15 +622,15 @@ static void slabcache(struct slabinfo *s) total_free ? (s->free_fastpath * 100 / total_free) : 0, s->order_fallback, s->order, s->cmpxchg_double_fail, s->cmpxchg_double_cpu_fail); - } - else - printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s\n", + } else { + printf("%-21s %8ld %7d %15s %14s %4d %1d %3ld %3ld %s\n", s->name, s->objects, s->object_size, size_str, dist_str, s->objs_per_slab, s->order, s->slabs ? (s->partial * 100) / s->slabs : 100, s->slabs ? (s->objects * s->object_size * 100) / (s->slabs * (page_size << s->order)) : 100, flags); + } } /* @@ -918,84 +938,88 @@ static void totals(void) printf("Slabcache Totals\n"); printf("----------------\n"); - printf("Slabcaches : %3d Aliases : %3d->%-3d Active: %3d\n", + printf("Slabcaches : %15d Aliases : %11d->%-3d Active: %3d\n", slabs, aliases, alias_targets, used_slabs); store_size(b1, total_size);store_size(b2, total_waste); store_size(b3, total_waste * 100 / total_used); - printf("Memory used: %6s # Loss : %6s MRatio:%6s%%\n", b1, b2, b3); + printf("Memory used: %15s # Loss : %15s MRatio:%6s%%\n", b1, b2, b3); store_size(b1, total_objects);store_size(b2, total_partobj); store_size(b3, total_partobj * 100 / total_objects); - printf("# Objects : %6s # PartObj: %6s ORatio:%6s%%\n", b1, b2, b3); + printf("# Objects : %15s # PartObj: %15s ORatio:%6s%%\n", b1, b2, b3); printf("\n"); - printf("Per Cache Average Min Max Total\n"); - printf("---------------------------------------------------------\n"); + printf("Per Cache Average " + "Min Max Total\n"); + printf("---------------------------------------" + "-------------------------------------\n"); store_size(b1, avg_objects);store_size(b2, min_objects); store_size(b3, max_objects);store_size(b4, total_objects); - printf("#Objects %10s %10s %10s %10s\n", + printf("#Objects %15s %15s %15s %15s\n", b1, b2, b3, b4); store_size(b1, avg_slabs);store_size(b2, min_slabs); store_size(b3, max_slabs);store_size(b4, total_slabs); - printf("#Slabs %10s %10s %10s %10s\n", + printf("#Slabs %15s %15s %15s %15s\n", b1, b2, b3, b4); store_size(b1, avg_partial);store_size(b2, min_partial); store_size(b3, max_partial);store_size(b4, total_partial); - printf("#PartSlab %10s %10s %10s %10s\n", + printf("#PartSlab %15s %15s %15s %15s\n", b1, b2, b3, b4); store_size(b1, avg_ppart);store_size(b2, min_ppart); store_size(b3, max_ppart); store_size(b4, total_partial * 100 / total_slabs); - printf("%%PartSlab%10s%% %10s%% %10s%% %10s%%\n", + printf("%%PartSlab%15s%% %15s%% %15s%% %15s%%\n", b1, b2, b3, b4); store_size(b1, avg_partobj);store_size(b2, min_partobj); store_size(b3, max_partobj); store_size(b4, total_partobj); - printf("PartObjs %10s %10s %10s %10s\n", + printf("PartObjs %15s %15s %15s %15s\n", b1, b2, b3, b4); store_size(b1, avg_ppartobj);store_size(b2, min_ppartobj); store_size(b3, max_ppartobj); store_size(b4, total_partobj * 100 / total_objects); - printf("%% PartObj%10s%% %10s%% %10s%% %10s%%\n", + printf("%% PartObj%15s%% %15s%% %15s%% %15s%%\n", b1, b2, b3, b4); store_size(b1, avg_size);store_size(b2, min_size); store_size(b3, max_size);store_size(b4, total_size); - printf("Memory %10s %10s %10s %10s\n", + printf("Memory %15s %15s %15s %15s\n", b1, b2, b3, b4); store_size(b1, avg_used);store_size(b2, min_used); store_size(b3, max_used);store_size(b4, total_used); - printf("Used %10s %10s %10s %10s\n", + printf("Used %15s %15s %15s %15s\n", b1, b2, b3, b4); store_size(b1, avg_waste);store_size(b2, min_waste); store_size(b3, max_waste);store_size(b4, total_waste); - printf("Loss %10s %10s %10s %10s\n", + printf("Loss %15s %15s %15s %15s\n", b1, b2, b3, b4); printf("\n"); - printf("Per Object Average Min Max\n"); - printf("---------------------------------------------\n"); + printf("Per Object Average " + "Min Max\n"); + printf("---------------------------------------" + "--------------------\n"); store_size(b1, avg_memobj);store_size(b2, min_memobj); store_size(b3, max_memobj); - printf("Memory %10s %10s %10s\n", + printf("Memory %15s %15s %15s\n", b1, b2, b3); store_size(b1, avg_objsize);store_size(b2, min_objsize); store_size(b3, max_objsize); - printf("User %10s %10s %10s\n", + printf("User %15s %15s %15s\n", b1, b2, b3); store_size(b1, avg_objwaste);store_size(b2, min_objwaste); store_size(b3, max_objwaste); - printf("Loss %10s %10s %10s\n", + printf("Loss %15s %15s %15s\n", b1, b2, b3); } @@ -1011,6 +1035,8 @@ static void sort_slabs(void) result = slab_size(s1) < slab_size(s2); else if (sort_active) result = slab_activity(s1) < slab_activity(s2); + else if (sort_loss) + result = slab_waste(s1) < slab_waste(s2); else result = strcasecmp(s1->name, s2->name); @@ -1095,7 +1121,7 @@ static void alias(void) active = a->slab->name; } else - printf("%-20s -> %s\n", a->name, a->slab->name); + printf("%-15s -> %s\n", a->name, a->slab->name); } if (active) printf("\n"); @@ -1241,12 +1267,16 @@ static void read_slab_dir(void) static void output_slabs(void) { struct slabinfo *slab; + int lines = output_lines; - for (slab = slabinfo; slab < slabinfo + slabs; slab++) { + for (slab = slabinfo; (slab < slabinfo + slabs) && + lines != 0; slab++) { if (slab->alias) continue; + if (lines != -1) + lines--; if (show_numa) slab_numa(slab, 0); @@ -1267,24 +1297,54 @@ static void output_slabs(void) } } +static void xtotals(void) +{ + totals(); + + link_slabs(); + rename_slabs(); + + printf("\nSlabs sorted by size\n"); + printf("--------------------\n"); + sort_loss = 0; + sort_size = 1; + sort_slabs(); + output_slabs(); + + printf("\nSlabs sorted by loss\n"); + printf("--------------------\n"); + line = 0; + sort_loss = 1; + sort_size = 0; + sort_slabs(); + output_slabs(); + printf("\n"); +} + struct option opts[] = { - { "aliases", 0, NULL, 'a' }, - { "activity", 0, NULL, 'A' }, - { "debug", 2, NULL, 'd' }, - { "display-activity", 0, NULL, 'D' }, - { "empty", 0, NULL, 'e' }, - { "first-alias", 0, NULL, 'f' }, - { "help", 0, NULL, 'h' }, - { "inverted", 0, NULL, 'i'}, - { "numa", 0, NULL, 'n' }, - { "ops", 0, NULL, 'o' }, - { "report", 0, NULL, 'r' }, - { "shrink", 0, NULL, 's' }, - { "slabs", 0, NULL, 'l' }, - { "track", 0, NULL, 't'}, - { "validate", 0, NULL, 'v' }, - { "zero", 0, NULL, 'z' }, - { "1ref", 0, NULL, '1'}, + { "aliases", no_argument, NULL, 'a' }, + { "activity", no_argument, NULL, 'A' }, + { "debug", optional_argument, NULL, 'd' }, + { "display-activity", no_argument, NULL, 'D' }, + { "empty", no_argument, NULL, 'e' }, + { "first-alias", no_argument, NULL, 'f' }, + { "help", no_argument, NULL, 'h' }, + { "inverted", no_argument, NULL, 'i'}, + { "slabs", no_argument, NULL, 'l' }, + { "numa", no_argument, NULL, 'n' }, + { "ops", no_argument, NULL, 'o' }, + { "shrink", no_argument, NULL, 's' }, + { "report", no_argument, NULL, 'r' }, + { "Size", no_argument, NULL, 'S'}, + { "tracking", no_argument, NULL, 't'}, + { "Totals", no_argument, NULL, 'T'}, + { "validate", no_argument, NULL, 'v' }, + { "zero", no_argument, NULL, 'z' }, + { "1ref", no_argument, NULL, '1'}, + { "lines", required_argument, NULL, 'N'}, + { "Loss", no_argument, NULL, 'L'}, + { "Xtotals", no_argument, NULL, 'X'}, + { "Bytes", no_argument, NULL, 'B'}, { NULL, 0, NULL, 0 } }; @@ -1296,7 +1356,7 @@ int main(int argc, char *argv[]) page_size = getpagesize(); - while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTS", + while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTSN:LXB", opts, NULL)) != -1) switch (c) { case '1': @@ -1358,7 +1418,25 @@ int main(int argc, char *argv[]) case 'S': sort_size = 1; break; - + case 'N': + if (optarg) { + output_lines = atoi(optarg); + if (output_lines < 1) + output_lines = 1; + } + break; + case 'L': + sort_loss = 1; + break; + case 'X': + if (output_lines == -1) + output_lines = 1; + extended_totals = 1; + show_bytes = 1; + break; + case 'B': + show_bytes = 1; + break; default: fatal("%s: Invalid option '%c'\n", argv[0], optopt); @@ -1378,12 +1456,13 @@ int main(int argc, char *argv[]) fatal("%s: Invalid pattern '%s' code %d\n", argv[0], pattern_source, err); read_slab_dir(); - if (show_alias) + if (show_alias) { alias(); - else - if (show_totals) + } else if (extended_totals) { + xtotals(); + } else if (show_totals) { totals(); - else { + } else { link_slabs(); rename_slabs(); sort_slabs(); |