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1 //===-- tsan_interface.h ----------------------------------------*- C++ -*-===//
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2 //
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3 // This file is distributed under the University of Illinois Open Source
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4 // License. See LICENSE.TXT for details.
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5 //
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6 //===----------------------------------------------------------------------===//
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7 //
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8 // This file is a part of ThreadSanitizer (TSan), a race detector.
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9 //
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10 // The functions declared in this header will be inserted by the instrumentation
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11 // module.
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12 // This header can be included by the instrumented program or by TSan tests.
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13 //===----------------------------------------------------------------------===//
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14 #ifndef TSAN_INTERFACE_H
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15 #define TSAN_INTERFACE_H
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16
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17 #include <sanitizer_common/sanitizer_internal_defs.h>
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18 using __sanitizer::uptr;
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19 using __sanitizer::tid_t;
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20
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21 // This header should NOT include any other headers.
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22 // All functions in this header are extern "C" and start with __tsan_.
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23
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24 #ifdef __cplusplus
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25 extern "C" {
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26 #endif
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27
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28 #if !SANITIZER_GO
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29
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30 // This function should be called at the very beginning of the process,
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31 // before any instrumented code is executed and before any call to malloc.
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32 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_init();
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33
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34 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_flush_memory();
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35
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36 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read1(void *addr);
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37 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read2(void *addr);
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38 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read4(void *addr);
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39 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read8(void *addr);
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40 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read16(void *addr);
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41
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42 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write1(void *addr);
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43 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write2(void *addr);
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44 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write4(void *addr);
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45 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write8(void *addr);
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46 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write16(void *addr);
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47
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48 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_read2(const void *addr);
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49 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_read4(const void *addr);
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50 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_read8(const void *addr);
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51 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_read16(const void *addr);
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52
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53 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_write2(void *addr);
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54 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_write4(void *addr);
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55 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_write8(void *addr);
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56 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_write16(void *addr);
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57
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58 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read1_pc(void *addr, void *pc);
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59 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read2_pc(void *addr, void *pc);
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60 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read4_pc(void *addr, void *pc);
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61 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read8_pc(void *addr, void *pc);
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62 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read16_pc(void *addr, void *pc);
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63
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64 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write1_pc(void *addr, void *pc);
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65 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write2_pc(void *addr, void *pc);
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66 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write4_pc(void *addr, void *pc);
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67 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write8_pc(void *addr, void *pc);
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68 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write16_pc(void *addr, void *pc);
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69
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70 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_vptr_read(void **vptr_p);
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71 SANITIZER_INTERFACE_ATTRIBUTE
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72 void __tsan_vptr_update(void **vptr_p, void *new_val);
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73
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74 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_func_entry(void *call_pc);
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75 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_func_exit();
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76
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77 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_ignore_thread_begin();
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78 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_ignore_thread_end();
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79
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80 SANITIZER_INTERFACE_ATTRIBUTE
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81 void *__tsan_external_register_tag(const char *object_type);
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82 SANITIZER_INTERFACE_ATTRIBUTE
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83 void __tsan_external_register_header(void *tag, const char *header);
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84 SANITIZER_INTERFACE_ATTRIBUTE
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85 void __tsan_external_assign_tag(void *addr, void *tag);
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86 SANITIZER_INTERFACE_ATTRIBUTE
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87 void __tsan_external_read(void *addr, void *caller_pc, void *tag);
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88 SANITIZER_INTERFACE_ATTRIBUTE
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89 void __tsan_external_write(void *addr, void *caller_pc, void *tag);
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90
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91 SANITIZER_INTERFACE_ATTRIBUTE
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92 void __tsan_read_range(void *addr, unsigned long size); // NOLINT
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93 SANITIZER_INTERFACE_ATTRIBUTE
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94 void __tsan_write_range(void *addr, unsigned long size); // NOLINT
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95
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96 // User may provide function that would be called right when TSan detects
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97 // an error. The argument 'report' is an opaque pointer that can be used to
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98 // gather additional information using other TSan report API functions.
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99 SANITIZER_INTERFACE_ATTRIBUTE
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100 void __tsan_on_report(void *report);
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101
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102 // If TSan is currently reporting a detected issue on the current thread,
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103 // returns an opaque pointer to the current report. Otherwise returns NULL.
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104 SANITIZER_INTERFACE_ATTRIBUTE
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105 void *__tsan_get_current_report();
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106
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107 // Returns a report's description (issue type), number of duplicate issues
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108 // found, counts of array data (stack traces, memory operations, locations,
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109 // mutexes, threads, unique thread IDs) and a stack trace of a sleep() call (if
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110 // one was involved in the issue).
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111 SANITIZER_INTERFACE_ATTRIBUTE
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112 int __tsan_get_report_data(void *report, const char **description, int *count,
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113 int *stack_count, int *mop_count, int *loc_count,
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114 int *mutex_count, int *thread_count,
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115 int *unique_tid_count, void **sleep_trace,
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116 uptr trace_size);
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117
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118 // Returns information about stack traces included in the report.
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119 SANITIZER_INTERFACE_ATTRIBUTE
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120 int __tsan_get_report_stack(void *report, uptr idx, void **trace,
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121 uptr trace_size);
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122
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123 // Returns information about memory operations included in the report.
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124 SANITIZER_INTERFACE_ATTRIBUTE
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125 int __tsan_get_report_mop(void *report, uptr idx, int *tid, void **addr,
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126 int *size, int *write, int *atomic, void **trace,
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127 uptr trace_size);
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128
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129 // Returns information about locations included in the report.
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130 SANITIZER_INTERFACE_ATTRIBUTE
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131 int __tsan_get_report_loc(void *report, uptr idx, const char **type,
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132 void **addr, uptr *start, uptr *size, int *tid,
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133 int *fd, int *suppressable, void **trace,
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134 uptr trace_size);
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135
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136 SANITIZER_INTERFACE_ATTRIBUTE
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137 int __tsan_get_report_loc_object_type(void *report, uptr idx,
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138 const char **object_type);
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139
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140 // Returns information about mutexes included in the report.
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141 SANITIZER_INTERFACE_ATTRIBUTE
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142 int __tsan_get_report_mutex(void *report, uptr idx, uptr *mutex_id, void **addr,
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143 int *destroyed, void **trace, uptr trace_size);
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144
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145 // Returns information about threads included in the report.
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146 SANITIZER_INTERFACE_ATTRIBUTE
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147 int __tsan_get_report_thread(void *report, uptr idx, int *tid, tid_t *os_id,
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148 int *running, const char **name, int *parent_tid,
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149 void **trace, uptr trace_size);
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150
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151 // Returns information about unique thread IDs included in the report.
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152 SANITIZER_INTERFACE_ATTRIBUTE
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153 int __tsan_get_report_unique_tid(void *report, uptr idx, int *tid);
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154
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155 // Returns the type of the pointer (heap, stack, global, ...) and if possible
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156 // also the starting address (e.g. of a heap allocation) and size.
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157 SANITIZER_INTERFACE_ATTRIBUTE
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158 const char *__tsan_locate_address(uptr addr, char *name, uptr name_size,
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159 uptr *region_address, uptr *region_size);
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160
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161 // Returns the allocation stack for a heap pointer.
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162 SANITIZER_INTERFACE_ATTRIBUTE
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163 int __tsan_get_alloc_stack(uptr addr, uptr *trace, uptr size, int *thread_id,
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164 tid_t *os_id);
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165
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166 #endif // SANITIZER_GO
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167
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168 #ifdef __cplusplus
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169 } // extern "C"
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170 #endif
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171
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172 namespace __tsan {
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173
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174 // These should match declarations from public tsan_interface_atomic.h header.
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175 typedef unsigned char a8;
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176 typedef unsigned short a16; // NOLINT
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177 typedef unsigned int a32;
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178 typedef unsigned long long a64; // NOLINT
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179 #if !SANITIZER_GO && (defined(__SIZEOF_INT128__) \
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180 || (__clang_major__ * 100 + __clang_minor__ >= 302)) && !defined(__mips64)
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181 __extension__ typedef __int128 a128;
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182 # define __TSAN_HAS_INT128 1
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183 #else
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184 # define __TSAN_HAS_INT128 0
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185 #endif
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186
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187 // Part of ABI, do not change.
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188 // http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/atomic?view=markup
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189 typedef enum {
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190 mo_relaxed,
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191 mo_consume,
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192 mo_acquire,
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193 mo_release,
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194 mo_acq_rel,
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195 mo_seq_cst
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196 } morder;
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197
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198 struct ThreadState;
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199
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200 extern "C" {
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201 SANITIZER_INTERFACE_ATTRIBUTE
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202 a8 __tsan_atomic8_load(const volatile a8 *a, morder mo);
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203 SANITIZER_INTERFACE_ATTRIBUTE
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204 a16 __tsan_atomic16_load(const volatile a16 *a, morder mo);
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205 SANITIZER_INTERFACE_ATTRIBUTE
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206 a32 __tsan_atomic32_load(const volatile a32 *a, morder mo);
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207 SANITIZER_INTERFACE_ATTRIBUTE
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208 a64 __tsan_atomic64_load(const volatile a64 *a, morder mo);
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209 #if __TSAN_HAS_INT128
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210 SANITIZER_INTERFACE_ATTRIBUTE
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211 a128 __tsan_atomic128_load(const volatile a128 *a, morder mo);
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212 #endif
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213
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214 SANITIZER_INTERFACE_ATTRIBUTE
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215 void __tsan_atomic8_store(volatile a8 *a, a8 v, morder mo);
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216 SANITIZER_INTERFACE_ATTRIBUTE
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217 void __tsan_atomic16_store(volatile a16 *a, a16 v, morder mo);
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218 SANITIZER_INTERFACE_ATTRIBUTE
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219 void __tsan_atomic32_store(volatile a32 *a, a32 v, morder mo);
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220 SANITIZER_INTERFACE_ATTRIBUTE
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221 void __tsan_atomic64_store(volatile a64 *a, a64 v, morder mo);
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222 #if __TSAN_HAS_INT128
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223 SANITIZER_INTERFACE_ATTRIBUTE
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224 void __tsan_atomic128_store(volatile a128 *a, a128 v, morder mo);
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225 #endif
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226
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227 SANITIZER_INTERFACE_ATTRIBUTE
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228 a8 __tsan_atomic8_exchange(volatile a8 *a, a8 v, morder mo);
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229 SANITIZER_INTERFACE_ATTRIBUTE
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230 a16 __tsan_atomic16_exchange(volatile a16 *a, a16 v, morder mo);
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231 SANITIZER_INTERFACE_ATTRIBUTE
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232 a32 __tsan_atomic32_exchange(volatile a32 *a, a32 v, morder mo);
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233 SANITIZER_INTERFACE_ATTRIBUTE
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234 a64 __tsan_atomic64_exchange(volatile a64 *a, a64 v, morder mo);
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235 #if __TSAN_HAS_INT128
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236 SANITIZER_INTERFACE_ATTRIBUTE
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237 a128 __tsan_atomic128_exchange(volatile a128 *a, a128 v, morder mo);
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238 #endif
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239
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240 SANITIZER_INTERFACE_ATTRIBUTE
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241 a8 __tsan_atomic8_fetch_add(volatile a8 *a, a8 v, morder mo);
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242 SANITIZER_INTERFACE_ATTRIBUTE
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243 a16 __tsan_atomic16_fetch_add(volatile a16 *a, a16 v, morder mo);
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244 SANITIZER_INTERFACE_ATTRIBUTE
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245 a32 __tsan_atomic32_fetch_add(volatile a32 *a, a32 v, morder mo);
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246 SANITIZER_INTERFACE_ATTRIBUTE
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247 a64 __tsan_atomic64_fetch_add(volatile a64 *a, a64 v, morder mo);
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248 #if __TSAN_HAS_INT128
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249 SANITIZER_INTERFACE_ATTRIBUTE
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250 a128 __tsan_atomic128_fetch_add(volatile a128 *a, a128 v, morder mo);
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251 #endif
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252
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253 SANITIZER_INTERFACE_ATTRIBUTE
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254 a8 __tsan_atomic8_fetch_sub(volatile a8 *a, a8 v, morder mo);
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255 SANITIZER_INTERFACE_ATTRIBUTE
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256 a16 __tsan_atomic16_fetch_sub(volatile a16 *a, a16 v, morder mo);
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257 SANITIZER_INTERFACE_ATTRIBUTE
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258 a32 __tsan_atomic32_fetch_sub(volatile a32 *a, a32 v, morder mo);
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259 SANITIZER_INTERFACE_ATTRIBUTE
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260 a64 __tsan_atomic64_fetch_sub(volatile a64 *a, a64 v, morder mo);
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261 #if __TSAN_HAS_INT128
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262 SANITIZER_INTERFACE_ATTRIBUTE
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263 a128 __tsan_atomic128_fetch_sub(volatile a128 *a, a128 v, morder mo);
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264 #endif
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265
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266 SANITIZER_INTERFACE_ATTRIBUTE
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267 a8 __tsan_atomic8_fetch_and(volatile a8 *a, a8 v, morder mo);
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268 SANITIZER_INTERFACE_ATTRIBUTE
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269 a16 __tsan_atomic16_fetch_and(volatile a16 *a, a16 v, morder mo);
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270 SANITIZER_INTERFACE_ATTRIBUTE
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271 a32 __tsan_atomic32_fetch_and(volatile a32 *a, a32 v, morder mo);
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272 SANITIZER_INTERFACE_ATTRIBUTE
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273 a64 __tsan_atomic64_fetch_and(volatile a64 *a, a64 v, morder mo);
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274 #if __TSAN_HAS_INT128
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275 SANITIZER_INTERFACE_ATTRIBUTE
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276 a128 __tsan_atomic128_fetch_and(volatile a128 *a, a128 v, morder mo);
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277 #endif
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278
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279 SANITIZER_INTERFACE_ATTRIBUTE
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280 a8 __tsan_atomic8_fetch_or(volatile a8 *a, a8 v, morder mo);
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281 SANITIZER_INTERFACE_ATTRIBUTE
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282 a16 __tsan_atomic16_fetch_or(volatile a16 *a, a16 v, morder mo);
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283 SANITIZER_INTERFACE_ATTRIBUTE
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284 a32 __tsan_atomic32_fetch_or(volatile a32 *a, a32 v, morder mo);
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285 SANITIZER_INTERFACE_ATTRIBUTE
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286 a64 __tsan_atomic64_fetch_or(volatile a64 *a, a64 v, morder mo);
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287 #if __TSAN_HAS_INT128
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288 SANITIZER_INTERFACE_ATTRIBUTE
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289 a128 __tsan_atomic128_fetch_or(volatile a128 *a, a128 v, morder mo);
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290 #endif
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291
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292 SANITIZER_INTERFACE_ATTRIBUTE
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293 a8 __tsan_atomic8_fetch_xor(volatile a8 *a, a8 v, morder mo);
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294 SANITIZER_INTERFACE_ATTRIBUTE
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295 a16 __tsan_atomic16_fetch_xor(volatile a16 *a, a16 v, morder mo);
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296 SANITIZER_INTERFACE_ATTRIBUTE
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297 a32 __tsan_atomic32_fetch_xor(volatile a32 *a, a32 v, morder mo);
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298 SANITIZER_INTERFACE_ATTRIBUTE
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299 a64 __tsan_atomic64_fetch_xor(volatile a64 *a, a64 v, morder mo);
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300 #if __TSAN_HAS_INT128
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301 SANITIZER_INTERFACE_ATTRIBUTE
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302 a128 __tsan_atomic128_fetch_xor(volatile a128 *a, a128 v, morder mo);
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303 #endif
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304
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305 SANITIZER_INTERFACE_ATTRIBUTE
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306 a8 __tsan_atomic8_fetch_nand(volatile a8 *a, a8 v, morder mo);
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307 SANITIZER_INTERFACE_ATTRIBUTE
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308 a16 __tsan_atomic16_fetch_nand(volatile a16 *a, a16 v, morder mo);
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309 SANITIZER_INTERFACE_ATTRIBUTE
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310 a32 __tsan_atomic32_fetch_nand(volatile a32 *a, a32 v, morder mo);
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311 SANITIZER_INTERFACE_ATTRIBUTE
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312 a64 __tsan_atomic64_fetch_nand(volatile a64 *a, a64 v, morder mo);
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313 #if __TSAN_HAS_INT128
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314 SANITIZER_INTERFACE_ATTRIBUTE
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315 a128 __tsan_atomic128_fetch_nand(volatile a128 *a, a128 v, morder mo);
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316 #endif
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317
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318 SANITIZER_INTERFACE_ATTRIBUTE
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319 int __tsan_atomic8_compare_exchange_strong(volatile a8 *a, a8 *c, a8 v,
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320 morder mo, morder fmo);
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321 SANITIZER_INTERFACE_ATTRIBUTE
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322 int __tsan_atomic16_compare_exchange_strong(volatile a16 *a, a16 *c, a16 v,
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323 morder mo, morder fmo);
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324 SANITIZER_INTERFACE_ATTRIBUTE
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325 int __tsan_atomic32_compare_exchange_strong(volatile a32 *a, a32 *c, a32 v,
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326 morder mo, morder fmo);
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327 SANITIZER_INTERFACE_ATTRIBUTE
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328 int __tsan_atomic64_compare_exchange_strong(volatile a64 *a, a64 *c, a64 v,
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329 morder mo, morder fmo);
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330 #if __TSAN_HAS_INT128
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331 SANITIZER_INTERFACE_ATTRIBUTE
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332 int __tsan_atomic128_compare_exchange_strong(volatile a128 *a, a128 *c, a128 v,
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333 morder mo, morder fmo);
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334 #endif
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335
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336 SANITIZER_INTERFACE_ATTRIBUTE
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337 int __tsan_atomic8_compare_exchange_weak(volatile a8 *a, a8 *c, a8 v, morder mo,
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338 morder fmo);
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339 SANITIZER_INTERFACE_ATTRIBUTE
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340 int __tsan_atomic16_compare_exchange_weak(volatile a16 *a, a16 *c, a16 v,
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341 morder mo, morder fmo);
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342 SANITIZER_INTERFACE_ATTRIBUTE
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343 int __tsan_atomic32_compare_exchange_weak(volatile a32 *a, a32 *c, a32 v,
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344 morder mo, morder fmo);
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345 SANITIZER_INTERFACE_ATTRIBUTE
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346 int __tsan_atomic64_compare_exchange_weak(volatile a64 *a, a64 *c, a64 v,
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347 morder mo, morder fmo);
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348 #if __TSAN_HAS_INT128
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349 SANITIZER_INTERFACE_ATTRIBUTE
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350 int __tsan_atomic128_compare_exchange_weak(volatile a128 *a, a128 *c, a128 v,
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351 morder mo, morder fmo);
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352 #endif
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353
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354 SANITIZER_INTERFACE_ATTRIBUTE
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355 a8 __tsan_atomic8_compare_exchange_val(volatile a8 *a, a8 c, a8 v, morder mo,
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356 morder fmo);
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357 SANITIZER_INTERFACE_ATTRIBUTE
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358 a16 __tsan_atomic16_compare_exchange_val(volatile a16 *a, a16 c, a16 v,
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359 morder mo, morder fmo);
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360 SANITIZER_INTERFACE_ATTRIBUTE
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361 a32 __tsan_atomic32_compare_exchange_val(volatile a32 *a, a32 c, a32 v,
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362 morder mo, morder fmo);
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363 SANITIZER_INTERFACE_ATTRIBUTE
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364 a64 __tsan_atomic64_compare_exchange_val(volatile a64 *a, a64 c, a64 v,
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365 morder mo, morder fmo);
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366 #if __TSAN_HAS_INT128
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367 SANITIZER_INTERFACE_ATTRIBUTE
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368 a128 __tsan_atomic128_compare_exchange_val(volatile a128 *a, a128 c, a128 v,
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369 morder mo, morder fmo);
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370 #endif
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371
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372 SANITIZER_INTERFACE_ATTRIBUTE
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373 void __tsan_atomic_thread_fence(morder mo);
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374 SANITIZER_INTERFACE_ATTRIBUTE
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375 void __tsan_atomic_signal_fence(morder mo);
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376
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377 SANITIZER_INTERFACE_ATTRIBUTE
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378 void __tsan_go_atomic32_load(ThreadState *thr, uptr cpc, uptr pc, u8 *a);
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379 SANITIZER_INTERFACE_ATTRIBUTE
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380 void __tsan_go_atomic64_load(ThreadState *thr, uptr cpc, uptr pc, u8 *a);
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381 SANITIZER_INTERFACE_ATTRIBUTE
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382 void __tsan_go_atomic32_store(ThreadState *thr, uptr cpc, uptr pc, u8 *a);
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383 SANITIZER_INTERFACE_ATTRIBUTE
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384 void __tsan_go_atomic64_store(ThreadState *thr, uptr cpc, uptr pc, u8 *a);
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385 SANITIZER_INTERFACE_ATTRIBUTE
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386 void __tsan_go_atomic32_fetch_add(ThreadState *thr, uptr cpc, uptr pc, u8 *a);
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387 SANITIZER_INTERFACE_ATTRIBUTE
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388 void __tsan_go_atomic64_fetch_add(ThreadState *thr, uptr cpc, uptr pc, u8 *a);
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389 SANITIZER_INTERFACE_ATTRIBUTE
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390 void __tsan_go_atomic32_exchange(ThreadState *thr, uptr cpc, uptr pc, u8 *a);
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391 SANITIZER_INTERFACE_ATTRIBUTE
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392 void __tsan_go_atomic64_exchange(ThreadState *thr, uptr cpc, uptr pc, u8 *a);
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393 SANITIZER_INTERFACE_ATTRIBUTE
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394 void __tsan_go_atomic32_compare_exchange(ThreadState *thr, uptr cpc, uptr pc,
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395 u8 *a);
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396 SANITIZER_INTERFACE_ATTRIBUTE
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397 void __tsan_go_atomic64_compare_exchange(ThreadState *thr, uptr cpc, uptr pc,
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398 u8 *a);
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399 } // extern "C"
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400
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401 } // namespace __tsan
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402
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403 #endif // TSAN_INTERFACE_H
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