contrib/compiler-rt/lib/sanitizer_common/sanitizer_allocator.h

   1 //===-- sanitizer_allocator.h -----------------------------------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // Specialized memory allocator for ThreadSanitizer, MemorySanitizer, etc.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef SANITIZER_ALLOCATOR_H
  15 #define SANITIZER_ALLOCATOR_H
  16
  17 #include "sanitizer_internal_defs.h"
  18 #include "sanitizer_common.h"
  19 #include "sanitizer_libc.h"
  20 #include "sanitizer_list.h"
  21 #include "sanitizer_mutex.h"
  22 #include "sanitizer_lfstack.h"
  23 #include "sanitizer_procmaps.h"
  24
  25 namespace __sanitizer {
  26
  27 // Returns true if ReportAllocatorCannotReturnNull(true) was called.
  28 // Can be use to avoid memory hungry operations.
  29 bool IsReportingOOM();
  30
  31 // Prints error message and kills the program.
  32 void NORETURN ReportAllocatorCannotReturnNull(bool out_of_memory);
  33
  34 // Allocators call these callbacks on mmap/munmap.
  35 struct NoOpMapUnmapCallback {
  36   void OnMap(uptr p, uptr size) const { }
  37   void OnUnmap(uptr p, uptr size) const { }
  38 };
  39
  40 // Callback type for iterating over chunks.
  41 typedef void (*ForEachChunkCallback)(uptr chunk, void *arg);
  42
  43 // Returns true if calloc(size, n) should return 0 due to overflow in size*n.
  44 bool CallocShouldReturnNullDueToOverflow(uptr size, uptr n);
  45
  46 #include "sanitizer_allocator_size_class_map.h"
  47 #include "sanitizer_allocator_stats.h"
  48 #include "sanitizer_allocator_primary64.h"
  49 #include "sanitizer_allocator_bytemap.h"
  50 #include "sanitizer_allocator_primary32.h"
  51 #include "sanitizer_allocator_local_cache.h"
  52 #include "sanitizer_allocator_secondary.h"
  53 #include "sanitizer_allocator_combined.h"
  54
  55 } // namespace __sanitizer
  56
  57 #endif // SANITIZER_ALLOCATOR_H