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