| //===-- sanitizer_allocator_internal.h --------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This allocator is used inside run-times. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef SANITIZER_ALLOCATOR_INTERNAL_H |
| #define SANITIZER_ALLOCATOR_INTERNAL_H |
| |
| #include "sanitizer_allocator.h" |
| #include "sanitizer_internal_defs.h" |
| |
| namespace __sanitizer { |
| |
| // FIXME: Check if we may use even more compact size class map for internal |
| // purposes. |
| typedef CompactSizeClassMap InternalSizeClassMap; |
| |
| static const uptr kInternalAllocatorRegionSizeLog = 20; |
| static const uptr kInternalAllocatorNumRegions = |
| SANITIZER_MMAP_RANGE_SIZE >> kInternalAllocatorRegionSizeLog; |
| #if SANITIZER_WORDSIZE == 32 |
| typedef FlatByteMap<kInternalAllocatorNumRegions> ByteMap; |
| #else |
| typedef TwoLevelByteMap<(kInternalAllocatorNumRegions >> 12), 1 << 12> ByteMap; |
| #endif |
| struct AP32 { |
| static const uptr kSpaceBeg = 0; |
| static const u64 kSpaceSize = SANITIZER_MMAP_RANGE_SIZE; |
| static const uptr kMetadataSize = 0; |
| typedef InternalSizeClassMap SizeClassMap; |
| static const uptr kRegionSizeLog = kInternalAllocatorRegionSizeLog; |
| typedef __sanitizer::ByteMap ByteMap; |
| typedef NoOpMapUnmapCallback MapUnmapCallback; |
| static const uptr kFlags = 0; |
| }; |
| typedef SizeClassAllocator32<AP32> PrimaryInternalAllocator; |
| |
| typedef SizeClassAllocatorLocalCache<PrimaryInternalAllocator> |
| InternalAllocatorCache; |
| |
| typedef LargeMmapAllocator<NoOpMapUnmapCallback, |
| LargeMmapAllocatorPtrArrayStatic> |
| SecondaryInternalAllocator; |
| |
| typedef CombinedAllocator<PrimaryInternalAllocator, InternalAllocatorCache, |
| SecondaryInternalAllocator> InternalAllocator; |
| |
| void *InternalAlloc(uptr size, InternalAllocatorCache *cache = nullptr, |
| uptr alignment = 0); |
| void *InternalRealloc(void *p, uptr size, |
| InternalAllocatorCache *cache = nullptr); |
| void *InternalCalloc(uptr countr, uptr size, |
| InternalAllocatorCache *cache = nullptr); |
| void InternalFree(void *p, InternalAllocatorCache *cache = nullptr); |
| InternalAllocator *internal_allocator(); |
| |
| } // namespace __sanitizer |
| |
| #endif // SANITIZER_ALLOCATOR_INTERNAL_H |