diff options
Diffstat (limited to 'lib/asan/asan_poisoning.h')
| -rw-r--r-- | lib/asan/asan_poisoning.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/asan/asan_poisoning.h b/lib/asan/asan_poisoning.h index 1e00070bcf63..c94794cead89 100644 --- a/lib/asan/asan_poisoning.h +++ b/lib/asan/asan_poisoning.h @@ -38,7 +38,7 @@ void PoisonShadowPartialRightRedzone(uptr addr, // performance-critical code with care. ALWAYS_INLINE void FastPoisonShadow(uptr aligned_beg, uptr aligned_size, u8 value) { - DCHECK(CanPoisonMemory()); + DCHECK(!value || CanPoisonMemory()); uptr shadow_beg = MEM_TO_SHADOW(aligned_beg); uptr shadow_end = MEM_TO_SHADOW( aligned_beg + aligned_size - SHADOW_GRANULARITY) + 1; @@ -51,6 +51,9 @@ ALWAYS_INLINE void FastPoisonShadow(uptr aligned_beg, uptr aligned_size, // changed at all. It doesn't currently have an efficient means // to zero a bunch of pages, but maybe we should add one. SANITIZER_FUCHSIA == 1 || + // RTEMS doesn't have have pages, let alone a fast way to zero + // them, so default to memset. + SANITIZER_RTEMS == 1 || shadow_end - shadow_beg < common_flags()->clear_shadow_mmap_threshold) { REAL(memset)((void*)shadow_beg, value, shadow_end - shadow_beg); } else { |