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| author | Emese Revfy <re.emese@gmail.com> | 2016-05-24 00:11:37 +0200 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.com> | 2016-06-07 22:57:10 +0200 |
| commit | 543c37cb165049c3be24a0d4733e67caa2b33eef (patch) | |
| tree | 91f3e0bb972a6283b607da394268e7e5872292b5 /Makefile | |
| parent | 0dae776c6bf31e779c172753f6e2d6426eb42523 (diff) | |
| download | lwn-543c37cb165049c3be24a0d4733e67caa2b33eef.tar.gz lwn-543c37cb165049c3be24a0d4733e67caa2b33eef.zip | |
Add sancov plugin
The sancov gcc plugin inserts a __sanitizer_cov_trace_pc() call
at the start of basic blocks.
This plugin is a helper plugin for the kcov feature. It supports
all gcc versions with plugin support (from gcc-4.5 on).
It is based on the gcc commit "Add fuzzing coverage support" by Dmitry Vyukov
(https://gcc.gnu.org/viewcvs/gcc?limit_changes=0&view=revision&revision=231296).
Signed-off-by: Emese Revfy <re.emese@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michal Marek <mmarek@suse.com>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 10 |
1 files changed, 1 insertions, 9 deletions
@@ -369,7 +369,7 @@ LDFLAGS_MODULE = CFLAGS_KERNEL = AFLAGS_KERNEL = CFLAGS_GCOV = -fprofile-arcs -ftest-coverage -fno-tree-loop-im -Wno-maybe-uninitialized -CFLAGS_KCOV = -fsanitize-coverage=trace-pc +CFLAGS_KCOV := $(call cc-option,-fsanitize-coverage=trace-pc,) # Use USERINCLUDE when you must reference the UAPI directories only. @@ -691,14 +691,6 @@ endif endif KBUILD_CFLAGS += $(stackp-flag) -ifdef CONFIG_KCOV - ifeq ($(call cc-option, $(CFLAGS_KCOV)),) - $(warning Cannot use CONFIG_KCOV: \ - -fsanitize-coverage=trace-pc is not supported by compiler) - CFLAGS_KCOV = - endif -endif - ifeq ($(cc-name),clang) KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) |