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| 1 /* | |
| 2 * Copyright (C) 2011 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Neither the name of Google Inc. nor the names of its | |
| 11 * contributors may be used to endorse or promote products derived from | |
| 12 * this software without specific prior written permission. | |
| 13 * | |
| 14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 15 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 17 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 18 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 20 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 25 */ | |
| 26 | |
| 27 #include "config.h" | |
| 28 | |
| 29 #include "DynamicAnnotations.h" | |
| 30 | |
| 31 #if USE(DYNAMIC_ANNOTATIONS) && !USE(DYNAMIC_ANNOTATIONS_NOIMPL) | |
| 32 | |
| 33 // Identical code folding(-Wl,--icf=all) countermeasures. | |
| 34 // This makes all Annotate* functions different, which prevents the linker from | |
| 35 // folding them. | |
| 36 #ifdef __COUNTER__ | |
| 37 #define DYNAMIC_ANNOTATIONS_IMPL \ | |
| 38 volatile short lineno = (__LINE__ << 8) + __COUNTER__; \ | |
| 39 (void)lineno; | |
| 40 #else | |
| 41 #define DYNAMIC_ANNOTATIONS_IMPL \ | |
| 42 volatile short lineno = (__LINE__ << 8); \ | |
| 43 (void)lineno; | |
| 44 #endif | |
| 45 | |
| 46 void WTFAnnotateBenignRaceSized(const char*, int, const volatile void*, long, co
nst char*) | |
| 47 { | |
| 48 DYNAMIC_ANNOTATIONS_IMPL | |
| 49 } | |
| 50 | |
| 51 void WTFAnnotateHappensBefore(const char*, int, const volatile void*) | |
| 52 { | |
| 53 DYNAMIC_ANNOTATIONS_IMPL | |
| 54 } | |
| 55 | |
| 56 void WTFAnnotateHappensAfter(const char*, int, const volatile void*) | |
| 57 { | |
| 58 DYNAMIC_ANNOTATIONS_IMPL | |
| 59 } | |
| 60 | |
| 61 #endif // USE(DYNAMIC_ANNOTATIONS) && !USE(DYNAMIC_ANNOTATIONS_NOIMPL) | |
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