diff options
| -rw-r--r-- | third_party/tcmalloc/chromium/src/tcmalloc.cc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/third_party/tcmalloc/chromium/src/tcmalloc.cc b/third_party/tcmalloc/chromium/src/tcmalloc.cc index e702256..f0f6aa2 100644 --- a/third_party/tcmalloc/chromium/src/tcmalloc.cc +++ b/third_party/tcmalloc/chromium/src/tcmalloc.cc @@ -1737,6 +1737,12 @@ static void ValidateAllocatedRegion(void* ptr, size_t cl) { DieFromDoubleFree(); if (current_mark != allocated_mark) DieFromMemoryCorruption(); +#ifndef NDEBUG + // In debug mode, copy the mark into all the free'd region. + size_t class_size = static_cast<size_t>(reinterpret_cast<char*>(mark) - + reinterpret_cast<char*>(ptr)); + memset(ptr, static_cast<char>(0x36), class_size); +#endif *mark = ~allocated_mark; // Distinctively not allocated. } |