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Bug 1967195 - Remove the chunk_assert_zero check r=glandium

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Differential Revision: https://phabricator.services.mozilla.com/D249941
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Paul Bone
2025-05-20 05:54:23 +00:00
committed by pbone@mozilla.com
parent 3d536b8bfe
commit 091243e8f5
1 changed files with 7 additions and 0 deletions
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7
memory/build/mozjemalloc.cpp
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@@ -212,6 +212,10 @@ using namespace mozilla;
# define MALLOC_RUNTIME_CONFIG # define MALLOC_RUNTIME_CONFIG
#endif #endif
// Uncomment this to enable extra-vigilant assertions. These assertions may run
// more expensive checks that are sometimes too slow for regular debug mode.
// #define MALLOC_DEBUG_VIGILANT
// When MALLOC_STATIC_PAGESIZE is defined, the page size is fixed at // When MALLOC_STATIC_PAGESIZE is defined, the page size is fixed at
// compile-time for better performance, as opposed to determined at // compile-time for better performance, as opposed to determined at
// runtime. Some platforms can have different page sizes at runtime // runtime. Some platforms can have different page sizes at runtime
@@ -2814,12 +2818,15 @@ static void* chunk_alloc(size_t aSize, size_t aAlignment, bool aBase) {
#ifdef MOZ_DEBUG #ifdef MOZ_DEBUG
static void chunk_assert_zero(void* aPtr, size_t aSize) { static void chunk_assert_zero(void* aPtr, size_t aSize) {
// Only run this expensive check in a vigilant mode.
# ifdef MALLOC_DEBUG_VIGILANT
size_t i; size_t i;
size_t* p = (size_t*)(uintptr_t)aPtr; size_t* p = (size_t*)(uintptr_t)aPtr;
for (i = 0; i < aSize / sizeof(size_t); i++) { for (i = 0; i < aSize / sizeof(size_t); i++) {
MOZ_ASSERT(p[i] == 0); MOZ_ASSERT(p[i] == 0);
} }
# endif
} }
#endif #endif