third_party/WebKit/Source/wtf/ContainerAnnotations.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef WTF_ContainerAnnotations_h
   6 #define WTF_ContainerAnnotations_h
   7
   8 #include "wtf/CPU.h"
   9
  10 // TODO(ochang): Remove the CPU(X86_64) condition to enable this for X86 once
  11 // the crashes there have been fixed: http://crbug.com/461406
  12 #if defined(ADDRESS_SANITIZER) && OS(LINUX) && CPU(X86_64)
  13 #define ANNOTATE_CONTIGUOUS_CONTAINER
  14 #define ANNOTATE_NEW_BUFFER(buffer, capacity, newSize) \
  15     if (buffer) { \
  16         __sanitizer_annotate_contiguous_container(buffer, (buffer) + (capacity), (buffer) + (capacity), (buffer) + (newSize)); \
  17     }
  18 #define ANNOTATE_DELETE_BUFFER(buffer, capacity, oldSize) \
  19     if (buffer) { \
  20         __sanitizer_annotate_contiguous_container(buffer, (buffer) + (capacity), (buffer) + (oldSize), (buffer) + (capacity)); \
  21     }
  22 #define ANNOTATE_CHANGE_SIZE(buffer, capacity, oldSize, newSize) \
  23     if (buffer) { \
  24         __sanitizer_annotate_contiguous_container(buffer, (buffer) + (capacity), (buffer) + (oldSize), (buffer) + (newSize)); \
  25     }
  26 #define ANNOTATE_CHANGE_CAPACITY(buffer, oldCapacity, bufferSize, newCapacity) \
  27     ANNOTATE_DELETE_BUFFER(buffer, oldCapacity, bufferSize); \
  28     ANNOTATE_NEW_BUFFER(buffer, newCapacity, bufferSize);
  29 // Annotations require buffers to begin on an 8-byte boundary.
  30 #else // defined(ADDRESS_SANITIZER) && OS(LINUX) && CPU(X86_64)
  31 #define ANNOTATE_NEW_BUFFER(buffer, capacity, newSize)
  32 #define ANNOTATE_DELETE_BUFFER(buffer, capacity, oldSize)
  33 #define ANNOTATE_CHANGE_SIZE(buffer, capacity, oldSize, newSize)
  34 #define ANNOTATE_CHANGE_CAPACITY(buffer, oldCapacity, bufferSize, newCapacity)
  35 #endif // defined(ADDRESS_SANITIZER) && OS(LINUX) && CPU(X86_64)
  36
  37 #endif // WTF_ContainerAnnotations_h