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| author |   Victor Chibotaru <[email protected]> | 2017-11-17 15:30:50 -0800 |
|---|---|---|
| committer |   Linus Torvalds <[email protected]> | 2017-11-17 16:10:04 -0800 |
| commit | d677a4d6019385488e794cc47bd3d6f9c2aab874 (patch) | |
| tree | 5c94f48e2a9acfb553a359c30bcbb2c0f76ba266 /scripts/Makefile.kcov | |
| parent | kcov: support comparison operands collection (diff) | |
| download | wireguard-linux-d677a4d6019385488e794cc47bd3d6f9c2aab874.tar.xz wireguard-linux-d677a4d6019385488e794cc47bd3d6f9c2aab874.zip | |
Makefile: support flag -fsanitizer-coverage=trace-cmp
The flag enables Clang instrumentation of comparison operations
(currently not supported by GCC). This instrumentation is needed by the
new KCOV device to collect comparison operands.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Victor Chibotaru <[email protected]>
Signed-off-by: Alexander Potapenko <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: Andrey Konovalov <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Alexander Popov <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Vegard Nossum <[email protected]>
Cc: Quentin Casasnovas <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to '')
| -rw-r--r-- | scripts/Makefile.kcov | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/scripts/Makefile.kcov b/scripts/Makefile.kcov new file mode 100644 index 000000000000..5cc72037e423 --- /dev/null +++ b/scripts/Makefile.kcov @@ -0,0 +1,7 @@ +ifdef CONFIG_KCOV +CFLAGS_KCOV := $(call cc-option,-fsanitize-coverage=trace-pc,) +ifeq ($(CONFIG_KCOV_ENABLE_COMPARISONS),y) +CFLAGS_KCOV += $(call cc-option,-fsanitize-coverage=trace-cmp,) +endif + +endif |