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1 //===-- tsan_interface_inl.h ------------------------------------*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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111
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6 //
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7 //===----------------------------------------------------------------------===//
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8 //
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9 // This file is a part of ThreadSanitizer (TSan), a race detector.
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10 //
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11 //===----------------------------------------------------------------------===//
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12
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13 #include "tsan_interface.h"
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14 #include "tsan_rtl.h"
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15
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16 #define CALLERPC ((uptr)__builtin_return_address(0))
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17
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18 using namespace __tsan;
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19
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20 void __tsan_read1(void *addr) {
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21 MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog1);
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22 }
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23
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24 void __tsan_read2(void *addr) {
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25 MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog2);
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26 }
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27
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28 void __tsan_read4(void *addr) {
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29 MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog4);
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30 }
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31
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32 void __tsan_read8(void *addr) {
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33 MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8);
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34 }
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35
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36 void __tsan_write1(void *addr) {
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37 MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog1);
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38 }
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39
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40 void __tsan_write2(void *addr) {
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41 MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog2);
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42 }
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43
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44 void __tsan_write4(void *addr) {
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45 MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog4);
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46 }
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47
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48 void __tsan_write8(void *addr) {
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49 MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8);
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50 }
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51
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52 void __tsan_read1_pc(void *addr, void *pc) {
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53 MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog1);
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54 }
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55
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56 void __tsan_read2_pc(void *addr, void *pc) {
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57 MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog2);
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58 }
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59
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60 void __tsan_read4_pc(void *addr, void *pc) {
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61 MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog4);
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62 }
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63
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64 void __tsan_read8_pc(void *addr, void *pc) {
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65 MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog8);
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66 }
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67
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68 void __tsan_write1_pc(void *addr, void *pc) {
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69 MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog1);
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70 }
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71
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72 void __tsan_write2_pc(void *addr, void *pc) {
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73 MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog2);
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74 }
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75
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76 void __tsan_write4_pc(void *addr, void *pc) {
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77 MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog4);
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78 }
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79
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80 void __tsan_write8_pc(void *addr, void *pc) {
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81 MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog8);
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82 }
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83
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84 void __tsan_vptr_update(void **vptr_p, void *new_val) {
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85 CHECK_EQ(sizeof(vptr_p), 8);
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86 if (*vptr_p != new_val) {
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87 ThreadState *thr = cur_thread();
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88 thr->is_vptr_access = true;
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89 MemoryWrite(thr, CALLERPC, (uptr)vptr_p, kSizeLog8);
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90 thr->is_vptr_access = false;
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91 }
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92 }
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93
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94 void __tsan_vptr_read(void **vptr_p) {
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95 CHECK_EQ(sizeof(vptr_p), 8);
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96 ThreadState *thr = cur_thread();
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97 thr->is_vptr_access = true;
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98 MemoryRead(thr, CALLERPC, (uptr)vptr_p, kSizeLog8);
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99 thr->is_vptr_access = false;
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100 }
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101
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102 void __tsan_func_entry(void *pc) {
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103 FuncEntry(cur_thread(), (uptr)pc);
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104 }
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105
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106 void __tsan_func_exit() {
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107 FuncExit(cur_thread());
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108 }
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109
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110 void __tsan_ignore_thread_begin() {
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111 ThreadIgnoreBegin(cur_thread(), CALLERPC);
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112 }
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113
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114 void __tsan_ignore_thread_end() {
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115 ThreadIgnoreEnd(cur_thread(), CALLERPC);
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116 }
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117
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118 void __tsan_read_range(void *addr, uptr size) {
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119 MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, false);
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120 }
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121
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122 void __tsan_write_range(void *addr, uptr size) {
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123 MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, true);
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124 }
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125
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126 void __tsan_read_range_pc(void *addr, uptr size, void *pc) {
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127 MemoryAccessRange(cur_thread(), (uptr)pc, (uptr)addr, size, false);
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128 }
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129
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130 void __tsan_write_range_pc(void *addr, uptr size, void *pc) {
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131 MemoryAccessRange(cur_thread(), (uptr)pc, (uptr)addr, size, true);
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132 }
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