1//===-- sanitizer_allocator_internal.h --------------------------*- C++ -*-===//
 2//
 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 4// See https://llvm.org/LICENSE.txt for license information.
 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 6//
 7//===----------------------------------------------------------------------===//
 8//
 9// This allocator is used inside run-times.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef SANITIZER_ALLOCATOR_INTERNAL_H
14#define SANITIZER_ALLOCATOR_INTERNAL_H
15
16#include "sanitizer_allocator.h"
17#include "sanitizer_internal_defs.h"
18
19namespace __sanitizer {
20
21// FIXME: Check if we may use even more compact size class map for internal
22// purposes.
23typedef CompactSizeClassMap InternalSizeClassMap;
24
25struct AP32 {
26  static const uptr kSpaceBeg = SANITIZER_MMAP_BEGIN;
27  static const u64 kSpaceSize = SANITIZER_MMAP_RANGE_SIZE;
28  static const uptr kMetadataSize = 0;
29  typedef InternalSizeClassMap SizeClassMap;
30  static const uptr kRegionSizeLog = 20;
31  using AddressSpaceView = LocalAddressSpaceView;
32  typedef NoOpMapUnmapCallback MapUnmapCallback;
33  static const uptr kFlags = 0;
34};
35typedef SizeClassAllocator32<AP32> PrimaryInternalAllocator;
36
37typedef CombinedAllocator<PrimaryInternalAllocator,
38                          LargeMmapAllocatorPtrArrayStatic>
39    InternalAllocator;
40typedef InternalAllocator::AllocatorCache InternalAllocatorCache;
41
42void *InternalAlloc(uptr size, InternalAllocatorCache *cache = nullptr,
43                    uptr alignment = 0);
44void *InternalRealloc(void *p, uptr size,
45                      InternalAllocatorCache *cache = nullptr);
46void *InternalReallocArray(void *p, uptr count, uptr size,
47                           InternalAllocatorCache *cache = nullptr);
48void *InternalCalloc(uptr count, uptr size,
49                     InternalAllocatorCache *cache = nullptr);
50void InternalFree(void *p, InternalAllocatorCache *cache = nullptr);
51void InternalAllocatorLock();
52void InternalAllocatorUnlock();
53InternalAllocator *internal_allocator();
54} // namespace __sanitizer
55
56#endif // SANITIZER_ALLOCATOR_INTERNAL_H