libsanitizer/sanitizer_common/sanitizer_allocator.h

   1 //===-- sanitizer_allocator.h -----------------------------------*- C++ -*-===//
   2 //
   3 // This file is distributed under the University of Illinois Open Source
   4 // License. See LICENSE.TXT for details.
   5 //
   6 //===----------------------------------------------------------------------===//
   7 //
   8 // Specialized memory allocator for ThreadSanitizer, MemorySanitizer, etc.
   9 //
  10 //===----------------------------------------------------------------------===//
  11
  12 #ifndef SANITIZER_ALLOCATOR_H
  13 #define SANITIZER_ALLOCATOR_H
  14
  15 #include "sanitizer_internal_defs.h"
  16 #include "sanitizer_common.h"
  17 #include "sanitizer_libc.h"
  18 #include "sanitizer_list.h"
  19 #include "sanitizer_mutex.h"
  20 #include "sanitizer_lfstack.h"
  21 #include "sanitizer_procmaps.h"
  22
  23 namespace __sanitizer {
  24
  25 // Returns true if ReportAllocatorCannotReturnNull(true) was called.
  26 // Can be use to avoid memory hungry operations.
  27 bool IsReportingOOM();
  28
  29 // Prints error message and kills the program.
  30 void NORETURN ReportAllocatorCannotReturnNull(bool out_of_memory);
  31
  32 // Allocators call these callbacks on mmap/munmap.
  33 struct NoOpMapUnmapCallback {
  34   void OnMap(uptr p, uptr size) const { }
  35   void OnUnmap(uptr p, uptr size) const { }
  36 };
  37
  38 // Callback type for iterating over chunks.
  39 typedef void (*ForEachChunkCallback)(uptr chunk, void *arg);
  40
  41 // Returns true if calloc(size, n) should return 0 due to overflow in size*n.
  42 bool CallocShouldReturnNullDueToOverflow(uptr size, uptr n);
  43
  44 #include "sanitizer_allocator_size_class_map.h"
  45 #include "sanitizer_allocator_stats.h"
  46 #include "sanitizer_allocator_primary64.h"
  47 #include "sanitizer_allocator_bytemap.h"
  48 #include "sanitizer_allocator_primary32.h"
  49 #include "sanitizer_allocator_local_cache.h"
  50 #include "sanitizer_allocator_secondary.h"
  51 #include "sanitizer_allocator_combined.h"
  52
  53 } // namespace __sanitizer
  54
  55 #endif // SANITIZER_ALLOCATOR_H