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-rw-r--r--tools/perf/util/util.c39
1 files changed, 37 insertions, 2 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index b7766c577..23504ad5d 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -33,6 +33,9 @@ struct callchain_param callchain_param = {
unsigned int page_size;
int cacheline_size;
+int sysctl_perf_event_max_stack = PERF_MAX_STACK_DEPTH;
+int sysctl_perf_event_max_contexts_per_stack = PERF_MAX_CONTEXTS_PER_STACK;
+
bool test_attr__enabled;
bool perf_host = true;
@@ -117,6 +120,40 @@ int rm_rf(char *path)
return rmdir(path);
}
+/* A filter which removes dot files */
+bool lsdir_no_dot_filter(const char *name __maybe_unused, struct dirent *d)
+{
+ return d->d_name[0] != '.';
+}
+
+/* lsdir reads a directory and store it in strlist */
+struct strlist *lsdir(const char *name,
+ bool (*filter)(const char *, struct dirent *))
+{
+ struct strlist *list = NULL;
+ DIR *dir;
+ struct dirent *d;
+
+ dir = opendir(name);
+ if (!dir)
+ return NULL;
+
+ list = strlist__new(NULL, NULL);
+ if (!list) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ while ((d = readdir(dir)) != NULL) {
+ if (!filter || filter(name, d))
+ strlist__add(list, d->d_name);
+ }
+
+out:
+ closedir(dir);
+ return list;
+}
+
static int slow_copyfile(const char *from, const char *to)
{
int err = -1;
@@ -471,7 +508,6 @@ int parse_callchain_record(const char *arg, struct callchain_param *param)
"needed for --call-graph fp\n");
break;
-#ifdef HAVE_DWARF_UNWIND_SUPPORT
/* Dwarf style */
} else if (!strncmp(name, "dwarf", sizeof("dwarf"))) {
const unsigned long default_stack_dump_size = 8192;
@@ -487,7 +523,6 @@ int parse_callchain_record(const char *arg, struct callchain_param *param)
ret = get_stack_size(tok, &size);
param->dump_size = size;
}
-#endif /* HAVE_DWARF_UNWIND_SUPPORT */
} else if (!strncmp(name, "lbr", sizeof("lbr"))) {
if (!strtok_r(NULL, ",", &saveptr)) {
param->record_mode = CALLCHAIN_LBR;