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
46void WTFAnnotateBenignRaceSized(const char*, int, const volatile void*, long, const char*)
47{
48    DYNAMIC_ANNOTATIONS_IMPL
49}
50
51void WTFAnnotateHappensBefore(const char*, int, const volatile void*)
52{
53    DYNAMIC_ANNOTATIONS_IMPL
54}
55
56void WTFAnnotateHappensAfter(const char*, int, const volatile void*)
57{
58    DYNAMIC_ANNOTATIONS_IMPL
59}
60
61#endif // USE(DYNAMIC_ANNOTATIONS) && !USE(DYNAMIC_ANNOTATIONS_NOIMPL)
62