diff options
Diffstat (limited to 'third_party/tcmalloc/chromium/src/tcmalloc.cc')
| -rw-r--r-- | third_party/tcmalloc/chromium/src/tcmalloc.cc | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/third_party/tcmalloc/chromium/src/tcmalloc.cc b/third_party/tcmalloc/chromium/src/tcmalloc.cc index e702256..629f4e0 100644 --- a/third_party/tcmalloc/chromium/src/tcmalloc.cc +++ b/third_party/tcmalloc/chromium/src/tcmalloc.cc @@ -1615,7 +1615,7 @@ void *(*__memalign_hook)(size_t, size_t, const void *) = MemalignOverride; // It will cost abotu 2% in performance, but it will catch double frees (most of // the time), and will often catch allocated-buffer overrun errors. This // validation is only active when TCMalloc is used as the allocator. -// #define TCMALLOC_VALIDATION +#define TCMALLOC_VALIDATION #if !defined(TCMALLOC_VALIDATION) @@ -1738,6 +1738,10 @@ static void ValidateAllocatedRegion(void* ptr, size_t cl) { if (current_mark != allocated_mark) DieFromMemoryCorruption(); *mark = ~allocated_mark; // Distinctively not allocated. + // 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); } static void MarkAllocatedRegion(void* ptr) { |