Asan does not use metadata with primary allocators.
It should match AP64::kMetadataSize whic is 0.
Depends on D86917.
Reviewed By: morehouse
Differential Revision: https://reviews.llvm.org/D86919
struct AP32 {
static const uptr kSpaceBeg = 0;
static const u64 kSpaceSize = SANITIZER_MMAP_RANGE_SIZE;
- static const uptr kMetadataSize = 16;
+ static const uptr kMetadataSize = 0;
typedef __asan::SizeClassMap SizeClassMap;
static const uptr kRegionSizeLog = 20;
using AddressSpaceView = AddressSpaceViewTy;
}
void *GetMetaData(const void *p) {
+ CHECK(kMetadataSize);
CHECK(PointerIsMine(p));
uptr mem = reinterpret_cast<uptr>(p);
uptr beg = ComputeRegionBeg(mem);
static uptr ClassID(uptr size) { return SizeClassMap::ClassID(size); }
void *GetMetaData(const void *p) {
+ CHECK(kMetadataSize);
uptr class_id = GetSizeClass(p);
uptr size = ClassIdToSize(class_id);
uptr chunk_idx = GetChunkIdx(reinterpret_cast<uptr>(p), size);