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authorEmese Revfy <re.emese@gmail.com>2016-05-24 00:11:37 +0200
committerMichal Marek <mmarek@suse.com>2016-06-07 22:57:10 +0200
commit543c37cb165049c3be24a0d4733e67caa2b33eef (patch)
tree91f3e0bb972a6283b607da394268e7e5872292b5 /lib
parent0dae776c6bf31e779c172753f6e2d6426eb42523 (diff)
downloadop-kernel-dev-543c37cb165049c3be24a0d4733e67caa2b33eef.zip
op-kernel-dev-543c37cb165049c3be24a0d4733e67caa2b33eef.tar.gz
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 'lib')
-rw-r--r--lib/Kconfig.debug2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 77d7d03..b7827dc 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -708,6 +708,8 @@ config KCOV
bool "Code coverage for fuzzing"
depends on ARCH_HAS_KCOV
select DEBUG_FS
+ select GCC_PLUGINS
+ select GCC_PLUGIN_SANCOV
help
KCOV exposes kernel code coverage information in a form suitable
for coverage-guided fuzzing (randomized testing).
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