src/v8/src/msan.h

   1 // Copyright 2013 the V8 project 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 // MemorySanitizer support.
   6
   7 #ifndef V8_MSAN_H_
   8 #define V8_MSAN_H_
   9
  10 #include "globals.h"
  11
  12 #ifndef __has_feature
  13 # define __has_feature(x) 0
  14 #endif
  15
  16 #if __has_feature(memory_sanitizer) && !defined(MEMORY_SANITIZER)
  17 # define MEMORY_SANITIZER
  18 #endif
  19
  20 #if defined(MEMORY_SANITIZER) && !defined(USE_SIMULATOR)
  21 # include <sanitizer/msan_interface.h>  // NOLINT
  22 // Marks a memory range as fully initialized.
  23 # define MSAN_MEMORY_IS_INITIALIZED_IN_JIT(p, s) __msan_unpoison((p), (s))
  24 #else
  25 # define MSAN_MEMORY_IS_INITIALIZED_IN_JIT(p, s)
  26 #endif
  27
  28 #endif  // V8_MSAN_H_