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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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