1 .section .text 2 3 .hidden __tsan_trace_switch 4 .globl __tsan_trace_switch_thunk 5 __tsan_trace_switch_thunk: 6 .cfi_startproc 7 # Save scratch registers. 8 push %rax 9 .cfi_adjust_cfa_offset 8 10 .cfi_rel_offset %rax, 0 11 push %rcx 12 .cfi_adjust_cfa_offset 8 13 .cfi_rel_offset %rcx, 0 14 push %rdx 15 .cfi_adjust_cfa_offset 8 16 .cfi_rel_offset %rdx, 0 17 push %rsi 18 .cfi_adjust_cfa_offset 8 19 .cfi_rel_offset %rsi, 0 20 push %rdi 21 .cfi_adjust_cfa_offset 8 22 .cfi_rel_offset %rdi, 0 23 push %r8 24 .cfi_adjust_cfa_offset 8 25 .cfi_rel_offset %r8, 0 26 push %r9 27 .cfi_adjust_cfa_offset 8 28 .cfi_rel_offset %r9, 0 29 push %r10 30 .cfi_adjust_cfa_offset 8 31 .cfi_rel_offset %r10, 0 32 push %r11 33 .cfi_adjust_cfa_offset 8 34 .cfi_rel_offset %r11, 0 35 # Align stack frame. 36 push %rbx # non-scratch 37 .cfi_adjust_cfa_offset 8 38 .cfi_rel_offset %rbx, 0 39 mov %rsp, %rbx # save current rsp 40 .cfi_def_cfa_register %rbx 41 shr $4, %rsp # clear 4 lsb, align to 16 42 shl $4, %rsp 43 44 call __tsan_trace_switch 45 46 # Unalign stack frame back. 47 mov %rbx, %rsp # restore the original rsp 48 .cfi_def_cfa_register %rsp 49 pop %rbx 50 .cfi_adjust_cfa_offset -8 51 # Restore scratch registers. 52 pop %r11 53 .cfi_adjust_cfa_offset -8 54 pop %r10 55 .cfi_adjust_cfa_offset -8 56 pop %r9 57 .cfi_adjust_cfa_offset -8 58 pop %r8 59 .cfi_adjust_cfa_offset -8 60 pop %rdi 61 .cfi_adjust_cfa_offset -8 62 pop %rsi 63 .cfi_adjust_cfa_offset -8 64 pop %rdx 65 .cfi_adjust_cfa_offset -8 66 pop %rcx 67 .cfi_adjust_cfa_offset -8 68 pop %rax 69 .cfi_adjust_cfa_offset -8 70 .cfi_restore %rax 71 .cfi_restore %rbx 72 .cfi_restore %rcx 73 .cfi_restore %rdx 74 .cfi_restore %rsi 75 .cfi_restore %rdi 76 .cfi_restore %r8 77 .cfi_restore %r9 78 .cfi_restore %r10 79 .cfi_restore %r11 80 ret 81 .cfi_endproc 82 83 .hidden __tsan_report_race 84 .globl __tsan_report_race_thunk 85 __tsan_report_race_thunk: 86 .cfi_startproc 87 # Save scratch registers. 88 push %rax 89 .cfi_adjust_cfa_offset 8 90 .cfi_rel_offset %rax, 0 91 push %rcx 92 .cfi_adjust_cfa_offset 8 93 .cfi_rel_offset %rcx, 0 94 push %rdx 95 .cfi_adjust_cfa_offset 8 96 .cfi_rel_offset %rdx, 0 97 push %rsi 98 .cfi_adjust_cfa_offset 8 99 .cfi_rel_offset %rsi, 0 100 push %rdi 101 .cfi_adjust_cfa_offset 8 102 .cfi_rel_offset %rdi, 0 103 push %r8 104 .cfi_adjust_cfa_offset 8 105 .cfi_rel_offset %r8, 0 106 push %r9 107 .cfi_adjust_cfa_offset 8 108 .cfi_rel_offset %r9, 0 109 push %r10 110 .cfi_adjust_cfa_offset 8 111 .cfi_rel_offset %r10, 0 112 push %r11 113 .cfi_adjust_cfa_offset 8 114 .cfi_rel_offset %r11, 0 115 # Align stack frame. 116 push %rbx # non-scratch 117 .cfi_adjust_cfa_offset 8 118 .cfi_rel_offset %rbx, 0 119 mov %rsp, %rbx # save current rsp 120 .cfi_def_cfa_register %rbx 121 shr $4, %rsp # clear 4 lsb, align to 16 122 shl $4, %rsp 123 124 call __tsan_report_race 125 126 # Unalign stack frame back. 127 mov %rbx, %rsp # restore the original rsp 128 .cfi_def_cfa_register %rsp 129 pop %rbx 130 .cfi_adjust_cfa_offset -8 131 # Restore scratch registers. 132 pop %r11 133 .cfi_adjust_cfa_offset -8 134 pop %r10 135 .cfi_adjust_cfa_offset -8 136 pop %r9 137 .cfi_adjust_cfa_offset -8 138 pop %r8 139 .cfi_adjust_cfa_offset -8 140 pop %rdi 141 .cfi_adjust_cfa_offset -8 142 pop %rsi 143 .cfi_adjust_cfa_offset -8 144 pop %rdx 145 .cfi_adjust_cfa_offset -8 146 pop %rcx 147 .cfi_adjust_cfa_offset -8 148 pop %rax 149 .cfi_adjust_cfa_offset -8 150 .cfi_restore %rax 151 .cfi_restore %rbx 152 .cfi_restore %rcx 153 .cfi_restore %rdx 154 .cfi_restore %rsi 155 .cfi_restore %rdi 156 .cfi_restore %r8 157 .cfi_restore %r9 158 .cfi_restore %r10 159 .cfi_restore %r11 160 ret 161 .cfi_endproc 162 163 #ifdef __linux__ 164 /* We do not need executable stack. */ 165 .section .note.GNU-stack,"",@progbits 166 #endif 167
