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| 1 // Copyright 2013 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // MemorySanitizer support. | 5 // MemorySanitizer support. |
| 6 | 6 |
| 7 #ifndef V8_MSAN_H_ | 7 #ifndef V8_MSAN_H_ |
| 8 #define V8_MSAN_H_ | 8 #define V8_MSAN_H_ |
| 9 | 9 |
| 10 #include "src/globals.h" | 10 #include "src/globals.h" |
| 11 | 11 |
| 12 #ifndef __has_feature | 12 #ifndef __has_feature |
| 13 # define __has_feature(x) 0 | 13 # define __has_feature(x) 0 |
| 14 #endif | 14 #endif |
| 15 | 15 |
| 16 #if __has_feature(memory_sanitizer) && !defined(MEMORY_SANITIZER) | 16 #if __has_feature(memory_sanitizer) && !defined(MEMORY_SANITIZER) |
| 17 # define MEMORY_SANITIZER | 17 # define MEMORY_SANITIZER |
| 18 #endif | 18 #endif |
| 19 | 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 #else |
| 27 # define MSAN_ALLOCATED_UNINITIALIZED_MEMORY(p, s) |
| 28 #endif |
| 29 |
| 20 #if defined(MEMORY_SANITIZER) && !defined(USE_SIMULATOR) | 30 #if defined(MEMORY_SANITIZER) && !defined(USE_SIMULATOR) |
| 21 # include <sanitizer/msan_interface.h> // NOLINT | |
| 22 // Marks a memory range as fully initialized. | 31 // Marks a memory range as fully initialized. |
| 23 # define MSAN_MEMORY_IS_INITIALIZED_IN_JIT(p, s) __msan_unpoison((p), (s)) | 32 # define MSAN_MEMORY_IS_INITIALIZED_IN_JIT(p, s) __msan_unpoison((p), (s)) |
| 24 #else | 33 #else |
| 25 # define MSAN_MEMORY_IS_INITIALIZED_IN_JIT(p, s) | 34 # define MSAN_MEMORY_IS_INITIALIZED_IN_JIT(p, s) |
| 26 #endif | 35 #endif |
| 27 | 36 |
| 28 #endif // V8_MSAN_H_ | 37 #endif // V8_MSAN_H_ |
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Chromium Code Reviews
Issue 480763003:
MSan: mark any memory allocated from the JS heap as uninitialized. (Closed)
Base URL: https://chromium.googlesource.com/external/v8.git@bleeding_edge