gcc/sanitizer.def

   1 /* This file contains the definitions and documentation for the
   2    Address Sanitizer and Thread Sanitizer builtins used in the GNU compiler.
   3    Copyright (C) 2012-2013 Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 3, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 /* Before including this file, you should define a macro:
  22
  23      DEF_SANITIZER_BUILTIN (ENUM, NAME, TYPE, ATTRS)
  24
  25    See builtins.def for details.
  26    The builtins are created by the C-family of FEs in c-family/c-common.c,
  27    for other FEs by asan.c.  */
  28
  29 /* Address Sanitizer */
  30 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_INIT, "__asan_init_v1",
  31                       BT_FN_VOID, ATTR_NOTHROW_LEAF_LIST)
  32 /* Do not reorder the BUILT_IN_ASAN_REPORT* builtins, e.g. cfgcleanup.c
  33    relies on this order.  */
  34 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_LOAD1, "__asan_report_load1",
  35                       BT_FN_VOID_PTR, ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST)
  36 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_LOAD2, "__asan_report_load2",
  37                       BT_FN_VOID_PTR, ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST)
  38 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_LOAD4, "__asan_report_load4",
  39                       BT_FN_VOID_PTR, ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST)
  40 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_LOAD8, "__asan_report_load8",
  41                       BT_FN_VOID_PTR, ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST)
  42 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_LOAD16, "__asan_report_load16",
  43                       BT_FN_VOID_PTR, ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST)
  44 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_STORE1, "__asan_report_store1",
  45                       BT_FN_VOID_PTR, ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST)
  46 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_STORE2, "__asan_report_store2",
  47                       BT_FN_VOID_PTR, ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST)
  48 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_STORE4, "__asan_report_store4",
  49                       BT_FN_VOID_PTR, ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST)
  50 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_STORE8, "__asan_report_store8",
  51                       BT_FN_VOID_PTR, ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST)
  52 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_STORE16, "__asan_report_store16",
  53                       BT_FN_VOID_PTR, ATTR_TMPURE_NORETURN_NOTHROW_LEAF_LIST)
  54 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REGISTER_GLOBALS,
  55                       "__asan_register_globals",
  56                       BT_FN_VOID_PTR_PTRMODE, ATTR_NOTHROW_LEAF_LIST)
  57 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_UNREGISTER_GLOBALS,
  58                       "__asan_unregister_globals",
  59                       BT_FN_VOID_PTR_PTRMODE, ATTR_NOTHROW_LEAF_LIST)
  60 DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_HANDLE_NO_RETURN,
  61                       "__asan_handle_no_return",
  62                       BT_FN_VOID, ATTR_TMPURE_NOTHROW_LEAF_LIST)
  63
  64 /* Thread Sanitizer */
  65 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_INIT, "__tsan_init",
  66                       BT_FN_VOID, ATTR_NOTHROW_LEAF_LIST)
  67 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_FUNC_ENTRY, "__tsan_func_entry",
  68                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  69 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_FUNC_EXIT, "__tsan_func_exit",
  70                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  71 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_VPTR_UPDATE, "__tsan_vptr_update",
  72                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  73 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ1, "__tsan_read1",
  74                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  75 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ2, "__tsan_read2",
  76                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  77 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ4, "__tsan_read4",
  78                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  79 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ8, "__tsan_read8",
  80                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  81 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ16, "__tsan_read16",
  82                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  83 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE1, "__tsan_write1",
  84                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  85 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE2, "__tsan_write2",
  86                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  87 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE4, "__tsan_write4",
  88                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  89 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE8, "__tsan_write8",
  90                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  91 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE16, "__tsan_write16",
  92                       BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
  93
  94 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_LOAD,
  95                       "__tsan_atomic8_load",
  96                       BT_FN_I1_CONST_VPTR_INT, ATTR_NOTHROW_LEAF_LIST)
  97 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_LOAD,
  98                       "__tsan_atomic16_load",
  99                       BT_FN_I2_CONST_VPTR_INT, ATTR_NOTHROW_LEAF_LIST)
 100 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_LOAD,
 101                       "__tsan_atomic32_load",
 102                       BT_FN_I4_CONST_VPTR_INT, ATTR_NOTHROW_LEAF_LIST)
 103 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_LOAD,
 104                       "__tsan_atomic64_load",
 105                       BT_FN_I8_CONST_VPTR_INT, ATTR_NOTHROW_LEAF_LIST)
 106 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_LOAD,
 107                       "__tsan_atomic128_load",
 108                       BT_FN_I16_CONST_VPTR_INT, ATTR_NOTHROW_LEAF_LIST)
 109
 110 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_STORE,
 111                       "__tsan_atomic8_store",
 112                       BT_FN_VOID_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
 113 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_STORE,
 114                       "__tsan_atomic16_store",
 115                       BT_FN_VOID_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
 116 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_STORE,
 117                       "__tsan_atomic32_store",
 118                       BT_FN_VOID_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
 119 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_STORE,
 120                       "__tsan_atomic64_store",
 121                       BT_FN_VOID_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
 122 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_STORE,
 123                       "__tsan_atomic128_store",
 124                       BT_FN_VOID_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
 125
 126 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_EXCHANGE,
 127                       "__tsan_atomic8_exchange",
 128                       BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
 129 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_EXCHANGE,
 130                       "__tsan_atomic16_exchange",
 131                       BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
 132 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_EXCHANGE,
 133                       "__tsan_atomic32_exchange",
 134                       BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
 135 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_EXCHANGE,
 136                       "__tsan_atomic64_exchange",
 137                       BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
 138 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_EXCHANGE,
 139                       "__tsan_atomic128_exchange",
 140                       BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
 141
 142 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_FETCH_ADD,
 143                       "__tsan_atomic8_fetch_add",
 144                       BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
 145 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_FETCH_ADD,
 146                       "__tsan_atomic16_fetch_add",
 147                       BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
 148 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_FETCH_ADD,
 149                       "__tsan_atomic32_fetch_add",
 150                       BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
 151 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_FETCH_ADD,
 152                       "__tsan_atomic64_fetch_add",
 153                       BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
 154 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_FETCH_ADD,
 155                       "__tsan_atomic128_fetch_add",
 156                       BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
 157
 158 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_FETCH_SUB,
 159                       "__tsan_atomic8_fetch_sub",
 160                       BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
 161 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_FETCH_SUB,
 162                       "__tsan_atomic16_fetch_sub",
 163                       BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
 164 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_FETCH_SUB,
 165                       "__tsan_atomic32_fetch_sub",
 166                       BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
 167 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_FETCH_SUB,
 168                       "__tsan_atomic64_fetch_sub",
 169                       BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
 170 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_FETCH_SUB,
 171                       "__tsan_atomic128_fetch_sub",
 172                       BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
 173
 174 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_FETCH_AND,
 175                       "__tsan_atomic8_fetch_and",
 176                       BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
 177 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_FETCH_AND,
 178                       "__tsan_atomic16_fetch_and",
 179                       BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
 180 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_FETCH_AND,
 181                       "__tsan_atomic32_fetch_and",
 182                       BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
 183 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_FETCH_AND,
 184                       "__tsan_atomic64_fetch_and",
 185                       BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
 186 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_FETCH_AND,
 187                       "__tsan_atomic128_fetch_and",
 188                       BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
 189
 190 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_FETCH_OR,
 191                       "__tsan_atomic8_fetch_or",
 192                       BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
 193 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_FETCH_OR,
 194                       "__tsan_atomic16_fetch_or",
 195                       BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
 196 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_FETCH_OR,
 197                       "__tsan_atomic32_fetch_or",
 198                       BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
 199 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_FETCH_OR,
 200                       "__tsan_atomic64_fetch_or",
 201                       BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
 202 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_FETCH_OR,
 203                       "__tsan_atomic128_fetch_or",
 204                       BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
 205
 206 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_FETCH_XOR,
 207                       "__tsan_atomic8_fetch_xor",
 208                       BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
 209 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_FETCH_XOR,
 210                       "__tsan_atomic16_fetch_xor",
 211                       BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
 212 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_FETCH_XOR,
 213                       "__tsan_atomic32_fetch_xor",
 214                       BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
 215 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_FETCH_XOR,
 216                       "__tsan_atomic64_fetch_xor",
 217                       BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
 218 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_FETCH_XOR,
 219                       "__tsan_atomic128_fetch_xor",
 220                       BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
 221
 222 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_FETCH_NAND,
 223                       "__tsan_atomic8_fetch_nand",
 224                       BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
 225 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_FETCH_NAND,
 226                       "__tsan_atomic16_fetch_nand",
 227                       BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
 228 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_FETCH_NAND,
 229                       "__tsan_atomic32_fetch_nand",
 230                       BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
 231 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_FETCH_NAND,
 232                       "__tsan_atomic64_fetch_nand",
 233                       BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
 234 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_FETCH_NAND,
 235                       "__tsan_atomic128_fetch_nand",
 236                       BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
 237
 238 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_COMPARE_EXCHANGE_STRONG,
 239                       "__tsan_atomic8_compare_exchange_strong",
 240                       BT_FN_BOOL_VPTR_PTR_I1_INT_INT,
 241                       ATTR_NOTHROW_LEAF_LIST)
 242 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_COMPARE_EXCHANGE_STRONG,
 243                       "__tsan_atomic16_compare_exchange_strong",
 244                       BT_FN_BOOL_VPTR_PTR_I2_INT_INT,
 245                       ATTR_NOTHROW_LEAF_LIST)
 246 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_COMPARE_EXCHANGE_STRONG,
 247                       "__tsan_atomic32_compare_exchange_strong",
 248                       BT_FN_BOOL_VPTR_PTR_I4_INT_INT,
 249                       ATTR_NOTHROW_LEAF_LIST)
 250 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_COMPARE_EXCHANGE_STRONG,
 251                       "__tsan_atomic64_compare_exchange_strong",
 252                       BT_FN_BOOL_VPTR_PTR_I8_INT_INT,
 253                       ATTR_NOTHROW_LEAF_LIST)
 254 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_COMPARE_EXCHANGE_STRONG,
 255                       "__tsan_atomic128_compare_exchange_strong",
 256                       BT_FN_BOOL_VPTR_PTR_I16_INT_INT,
 257                       ATTR_NOTHROW_LEAF_LIST)
 258
 259 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_COMPARE_EXCHANGE_WEAK,
 260                       "__tsan_atomic8_compare_exchange_weak",
 261                       BT_FN_BOOL_VPTR_PTR_I1_INT_INT,
 262                       ATTR_NOTHROW_LEAF_LIST)
 263 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_COMPARE_EXCHANGE_WEAK,
 264                       "__tsan_atomic16_compare_exchange_weak",
 265                       BT_FN_BOOL_VPTR_PTR_I2_INT_INT,
 266                       ATTR_NOTHROW_LEAF_LIST)
 267 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_COMPARE_EXCHANGE_WEAK,
 268                       "__tsan_atomic32_compare_exchange_weak",
 269                       BT_FN_BOOL_VPTR_PTR_I4_INT_INT,
 270                       ATTR_NOTHROW_LEAF_LIST)
 271 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_COMPARE_EXCHANGE_WEAK,
 272                       "__tsan_atomic64_compare_exchange_weak",
 273                       BT_FN_BOOL_VPTR_PTR_I8_INT_INT,
 274                       ATTR_NOTHROW_LEAF_LIST)
 275 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_COMPARE_EXCHANGE_WEAK,
 276                       "__tsan_atomic128_compare_exchange_weak",
 277                       BT_FN_BOOL_VPTR_PTR_I16_INT_INT,
 278                       ATTR_NOTHROW_LEAF_LIST)
 279
 280 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC_THREAD_FENCE,
 281                       "__tsan_atomic_thread_fence",
 282                       BT_FN_VOID_INT, ATTR_NOTHROW_LEAF_LIST)
 283 DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC_SIGNAL_FENCE,
 284                       "__tsan_atomic_signal_fence",
 285                       BT_FN_VOID_INT, ATTR_NOTHROW_LEAF_LIST)