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-rw-r--r--arch/Kconfig57
1 files changed, 46 insertions, 11 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 15996290f..fd6e9712a 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -336,17 +336,6 @@ config HAVE_ARCH_SECCOMP_FILTER
results in the system call being skipped immediately.
- seccomp syscall wired up
- For best performance, an arch should use seccomp_phase1 and
- seccomp_phase2 directly. It should call seccomp_phase1 for all
- syscalls if TIF_SECCOMP is set, but seccomp_phase1 does not
- need to be called from a ptrace-safe context. It must then
- call seccomp_phase2 if seccomp_phase1 returns anything other
- than SECCOMP_PHASE1_OK or SECCOMP_PHASE1_SKIP.
-
- As an additional optimization, an arch may provide seccomp_data
- directly to seccomp_phase1; this avoids multiple calls
- to the syscall_xyz helpers for every syscall.
-
config SECCOMP_FILTER
def_bool y
depends on HAVE_ARCH_SECCOMP_FILTER && SECCOMP && NET
@@ -357,6 +346,43 @@ config SECCOMP_FILTER
See Documentation/prctl/seccomp_filter.txt for details.
+config HAVE_GCC_PLUGINS
+ bool
+ help
+ An arch should select this symbol if it supports building with
+ GCC plugins.
+
+menuconfig GCC_PLUGINS
+ bool "GCC plugins"
+ depends on HAVE_GCC_PLUGINS
+ depends on !COMPILE_TEST
+ help
+ GCC plugins are loadable modules that provide extra features to the
+ compiler. They are useful for runtime instrumentation and static analysis.
+
+ See Documentation/gcc-plugins.txt for details.
+
+config GCC_PLUGIN_CYC_COMPLEXITY
+ bool "Compute the cyclomatic complexity of a function"
+ depends on GCC_PLUGINS
+ help
+ The complexity M of a function's control flow graph is defined as:
+ M = E - N + 2P
+ where
+
+ E = the number of edges
+ N = the number of nodes
+ P = the number of connected components (exit nodes).
+
+config GCC_PLUGIN_SANCOV
+ bool
+ depends on GCC_PLUGINS
+ help
+ This plugin inserts a __sanitizer_cov_trace_pc() call at the start of
+ basic blocks. It supports all gcc versions with plugin support (from
+ gcc-4.5 on). It is based on the commit "Add fuzzing coverage support"
+ by Dmitry Vyukov <dvyukov@google.com>.
+
config HAVE_CC_STACKPROTECTOR
bool
help
@@ -424,6 +450,15 @@ config CC_STACKPROTECTOR_STRONG
endchoice
+config HAVE_ARCH_WITHIN_STACK_FRAMES
+ bool
+ help
+ An architecture should select this if it can walk the kernel stack
+ frames to determine if an object is part of either the arguments
+ or local variables (i.e. that it excludes saved return addresses,
+ and similar) by implementing an inline arch_within_stack_frames(),
+ which is used by CONFIG_HARDENED_USERCOPY.
+
config HAVE_CONTEXT_TRACKING
bool
help