Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 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 "src/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) |
| 21 | # include <sanitizer/msan_interface.h> // NOLINT |
| 22 | |
| 23 | // Marks a memory range as uninitialized, as if it was allocated here. |
| 24 | # define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) \ |
| 25 | __msan_allocated_memory((p), (s)) |
| 26 | // Marks a memory range as initialized. |
| 27 | #define MSAN_MEMORY_IS_INITIALIZED(p, s) __msan_unpoison((p), (s)) |
| 28 | #else |
| 29 | # define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) |
| 30 | #define MSAN_MEMORY_IS_INITIALIZED(p, s) |
| 31 | #endif |
| 32 | |
| 33 | #endif // V8_MSAN_H_ |