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annotate Python/dynamic_annotations.c @ 78489:e7a67f1bf604

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Issue #15502: Refactor some code.
author Brett Cannon <brett@python.org>
date Fri, 10 Aug 2012 17:41:23 -0400
parents 4fd3ab5fa71d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Copyright (c) 2008-2009, Google Inc.
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2 * All rights reserved.
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3 *
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4 * Redistribution and use in source and binary forms, with or without
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5 * modification, are permitted provided that the following conditions are
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6 * met:
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7 *
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8 * * Redistributions of source code must retain the above copyright
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9 * notice, this list of conditions and the following disclaimer.
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10 * * Neither the name of Google Inc. nor the names of its
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11 * contributors may be used to endorse or promote products derived from
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12 * this software without specific prior written permission.
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13 *
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14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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15 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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17 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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18 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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20 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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25 *
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26 * ---
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27 * Author: Kostya Serebryany
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28 */
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29
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30 #ifdef _MSC_VER
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31 # include <windows.h>
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32 #endif
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33
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34 #ifdef __cplusplus
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35 # error "This file should be built as pure C to avoid name mangling"
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36 #endif
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37
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38 #include <stdlib.h>
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39 #include <string.h>
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40
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41 #include "dynamic_annotations.h"
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42
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43 /* Each function is empty and called (via a macro) only in debug mode.
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44 The arguments are captured by dynamic tools at runtime. */
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45
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46 #if DYNAMIC_ANNOTATIONS_ENABLED == 1
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47
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48 void AnnotateRWLockCreate(const char *file, int line,
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49 const volatile void *lock){}
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50 void AnnotateRWLockDestroy(const char *file, int line,
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51 const volatile void *lock){}
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52 void AnnotateRWLockAcquired(const char *file, int line,
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53 const volatile void *lock, long is_w){}
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54 void AnnotateRWLockReleased(const char *file, int line,
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55 const volatile void *lock, long is_w){}
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56 void AnnotateBarrierInit(const char *file, int line,
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57 const volatile void *barrier, long count,
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58 long reinitialization_allowed) {}
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59 void AnnotateBarrierWaitBefore(const char *file, int line,
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60 const volatile void *barrier) {}
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61 void AnnotateBarrierWaitAfter(const char *file, int line,
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62 const volatile void *barrier) {}
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63 void AnnotateBarrierDestroy(const char *file, int line,
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64 const volatile void *barrier) {}
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65
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66 void AnnotateCondVarWait(const char *file, int line,
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67 const volatile void *cv,
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68 const volatile void *lock){}
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69 void AnnotateCondVarSignal(const char *file, int line,
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70 const volatile void *cv){}
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71 void AnnotateCondVarSignalAll(const char *file, int line,
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72 const volatile void *cv){}
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73 void AnnotatePublishMemoryRange(const char *file, int line,
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74 const volatile void *address,
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75 long size){}
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76 void AnnotateUnpublishMemoryRange(const char *file, int line,
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77 const volatile void *address,
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78 long size){}
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79 void AnnotatePCQCreate(const char *file, int line,
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80 const volatile void *pcq){}
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81 void AnnotatePCQDestroy(const char *file, int line,
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82 const volatile void *pcq){}
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83 void AnnotatePCQPut(const char *file, int line,
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84 const volatile void *pcq){}
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85 void AnnotatePCQGet(const char *file, int line,
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86 const volatile void *pcq){}
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87 void AnnotateNewMemory(const char *file, int line,
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88 const volatile void *mem,
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89 long size){}
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90 void AnnotateExpectRace(const char *file, int line,
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91 const volatile void *mem,
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92 const char *description){}
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93 void AnnotateBenignRace(const char *file, int line,
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94 const volatile void *mem,
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95 const char *description){}
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96 void AnnotateBenignRaceSized(const char *file, int line,
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97 const volatile void *mem,
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98 long size,
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99 const char *description) {}
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100 void AnnotateMutexIsUsedAsCondVar(const char *file, int line,
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101 const volatile void *mu){}
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102 void AnnotateTraceMemory(const char *file, int line,
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103 const volatile void *arg){}
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104 void AnnotateThreadName(const char *file, int line,
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105 const char *name){}
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106 void AnnotateIgnoreReadsBegin(const char *file, int line){}
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107 void AnnotateIgnoreReadsEnd(const char *file, int line){}
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108 void AnnotateIgnoreWritesBegin(const char *file, int line){}
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109 void AnnotateIgnoreWritesEnd(const char *file, int line){}
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110 void AnnotateIgnoreSyncBegin(const char *file, int line){}
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111 void AnnotateIgnoreSyncEnd(const char *file, int line){}
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112 void AnnotateEnableRaceDetection(const char *file, int line, int enable){}
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113 void AnnotateNoOp(const char *file, int line,
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114 const volatile void *arg){}
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115 void AnnotateFlushState(const char *file, int line){}
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116
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117 static int GetRunningOnValgrind(void) {
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118 #ifdef RUNNING_ON_VALGRIND
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119 if (RUNNING_ON_VALGRIND) return 1;
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120 #endif
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121
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122 #ifndef _MSC_VER
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123 char *running_on_valgrind_str = getenv("RUNNING_ON_VALGRIND");
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124 if (running_on_valgrind_str) {
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125 return strcmp(running_on_valgrind_str, "0") != 0;
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126 }
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127 #else
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128 /* Visual Studio issues warnings if we use getenv,
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129 * so we use GetEnvironmentVariableA instead.
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130 */
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131 char value[100] = "1";
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132 int res = GetEnvironmentVariableA("RUNNING_ON_VALGRIND",
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133 value, sizeof(value));
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134 /* value will remain "1" if res == 0 or res >= sizeof(value). The latter
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135 * can happen only if the given value is long, in this case it can't be "0".
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136 */
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137 if (res > 0 && !strcmp(value, "0"))
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138 return 1;
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139 #endif
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140 return 0;
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141 }
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142
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143 /* See the comments in dynamic_annotations.h */
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144 int RunningOnValgrind(void) {
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145 static volatile int running_on_valgrind = -1;
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146 /* C doesn't have thread-safe initialization of statics, and we
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147 don't want to depend on pthread_once here, so hack it. */
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148 int local_running_on_valgrind = running_on_valgrind;
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149 if (local_running_on_valgrind == -1)
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150 running_on_valgrind = local_running_on_valgrind = GetRunningOnValgrind();
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151 return local_running_on_valgrind;
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152 }
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153
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154 #endif /* DYNAMIC_ANNOTATIONS_ENABLED == 1 */