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| author |   Marco Elver <elver@google.com> | 2020-06-04 07:58:11 +0200 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2020-06-15 14:10:09 +0200 |
| commit | 5144f8a8dfd7b3681f0a2b5bf599a210b2315018 (patch) | |
| tree | 6fd894145f691c9d671cc29291b19c0dcc5558d1 /include/linux/compiler-clang.h | |
| parent | kasan: Bump required compiler version (diff) | |
| download | wireguard-linux-5144f8a8dfd7b3681f0a2b5bf599a210b2315018.tar.xz wireguard-linux-5144f8a8dfd7b3681f0a2b5bf599a210b2315018.zip | |
compiler_types.h: Add __no_sanitize_{address,undefined} to noinstr
Adds the portable definitions for __no_sanitize_address, and
__no_sanitize_undefined, and subsequently changes noinstr to use the
attributes to disable instrumentation via KASAN or UBSAN.
Reported-by: syzbot+dc1fa714cb070b184db5@syzkaller.appspotmail.com
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Link: https://lore.kernel.org/lkml/000000000000d2474c05a6c938fe@google.com/
Diffstat (limited to 'include/linux/compiler-clang.h')
| -rw-r--r-- | include/linux/compiler-clang.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h index ee37256ec8bd..5e55302e3bf6 100644 --- a/include/linux/compiler-clang.h +++ b/include/linux/compiler-clang.h @@ -33,6 +33,14 @@ #define __no_sanitize_thread #endif +#if __has_feature(undefined_behavior_sanitizer) +/* GCC does not have __SANITIZE_UNDEFINED__ */ +#define __no_sanitize_undefined \ + __attribute__((no_sanitize("undefined"))) +#else +#define __no_sanitize_undefined +#endif + /* * Not all versions of clang implement the the type-generic versions * of the builtin overflow checkers. Fortunately, clang implements |