97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
//=-- lsan_allocator.h ----------------------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file is a part of LeakSanitizer.
|
|
// Allocator for standalone LSan.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LSAN_ALLOCATOR_H
|
|
#define LSAN_ALLOCATOR_H
|
|
|
|
#include "sanitizer_common/sanitizer_allocator.h"
|
|
#include "sanitizer_common/sanitizer_common.h"
|
|
#include "sanitizer_common/sanitizer_internal_defs.h"
|
|
#include "lsan_common.h"
|
|
|
|
namespace __lsan {
|
|
|
|
void *Allocate(const StackTrace &stack, uptr size, uptr alignment,
|
|
bool cleared);
|
|
void Deallocate(void *p);
|
|
void *Reallocate(const StackTrace &stack, void *p, uptr new_size,
|
|
uptr alignment);
|
|
uptr GetMallocUsableSize(const void *p);
|
|
|
|
template<typename Callable>
|
|
void ForEachChunk(const Callable &callback);
|
|
|
|
void GetAllocatorCacheRange(uptr *begin, uptr *end);
|
|
void AllocatorThreadFinish();
|
|
void InitializeAllocator();
|
|
|
|
const bool kAlwaysClearMemory = true;
|
|
|
|
struct ChunkMetadata {
|
|
u8 allocated : 8; // Must be first.
|
|
ChunkTag tag : 2;
|
|
#if SANITIZER_WORDSIZE == 64
|
|
uptr requested_size : 54;
|
|
#else
|
|
uptr requested_size : 32;
|
|
uptr padding : 22;
|
|
#endif
|
|
u32 stack_trace_id;
|
|
};
|
|
|
|
#if defined(__mips64) || defined(__aarch64__) || defined(__i386__) || \
|
|
defined(__arm__)
|
|
static const uptr kRegionSizeLog = 20;
|
|
static const uptr kNumRegions = SANITIZER_MMAP_RANGE_SIZE >> kRegionSizeLog;
|
|
typedef TwoLevelByteMap<(kNumRegions >> 12), 1 << 12> ByteMap;
|
|
|
|
struct AP32 {
|
|
static const uptr kSpaceBeg = 0;
|
|
static const u64 kSpaceSize = SANITIZER_MMAP_RANGE_SIZE;
|
|
static const uptr kMetadataSize = sizeof(ChunkMetadata);
|
|
typedef __sanitizer::CompactSizeClassMap SizeClassMap;
|
|
static const uptr kRegionSizeLog = __lsan::kRegionSizeLog;
|
|
typedef __lsan::ByteMap ByteMap;
|
|
typedef NoOpMapUnmapCallback MapUnmapCallback;
|
|
static const uptr kFlags = 0;
|
|
};
|
|
typedef SizeClassAllocator32<AP32> PrimaryAllocator;
|
|
#elif defined(__x86_64__) || defined(__powerpc64__)
|
|
struct AP64 { // Allocator64 parameters. Deliberately using a short name.
|
|
static const uptr kSpaceBeg = 0x600000000000ULL;
|
|
static const uptr kSpaceSize = 0x40000000000ULL; // 4T.
|
|
static const uptr kMetadataSize = sizeof(ChunkMetadata);
|
|
typedef DefaultSizeClassMap SizeClassMap;
|
|
typedef NoOpMapUnmapCallback MapUnmapCallback;
|
|
static const uptr kFlags = 0;
|
|
};
|
|
|
|
typedef SizeClassAllocator64<AP64> PrimaryAllocator;
|
|
#endif
|
|
typedef SizeClassAllocatorLocalCache<PrimaryAllocator> AllocatorCache;
|
|
|
|
AllocatorCache *GetAllocatorCache();
|
|
|
|
void *lsan_memalign(uptr alignment, uptr size, const StackTrace &stack);
|
|
void *lsan_malloc(uptr size, const StackTrace &stack);
|
|
void lsan_free(void *p);
|
|
void *lsan_realloc(void *p, uptr size, const StackTrace &stack);
|
|
void *lsan_calloc(uptr nmemb, uptr size, const StackTrace &stack);
|
|
void *lsan_valloc(uptr size, const StackTrace &stack);
|
|
uptr lsan_mz_size(const void *p);
|
|
|
|
} // namespace __lsan
|
|
|
|
#endif // LSAN_ALLOCATOR_H
|