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, const 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) 62
