1 //===-- tsan_interface.h ----------------------------------------*- C++ -*-===// 2 // 3 // This file is distributed under the University of Illinois Open Source 4 // License. See LICENSE.TXT for details. 5 // 6 //===----------------------------------------------------------------------===// 7 // 8 // This file is a part of ThreadSanitizer (TSan), a race detector. 9 // 10 // The functions declared in this header will be inserted by the instrumentation 11 // module. 12 // This header can be included by the instrumented program or by TSan tests. 13 //===----------------------------------------------------------------------===// 14 #ifndef TSAN_INTERFACE_H 15 #define TSAN_INTERFACE_H 16 17 #include <sanitizer_common/sanitizer_internal_defs.h> 18 using __sanitizer::uptr; 19 using __sanitizer::tid_t; 20 21 // This header should NOT include any other headers. 22 // All functions in this header are extern "C" and start with __tsan_. 23 24 #ifdef __cplusplus 25 extern "C" { 26 #endif 27 28 #if !SANITIZER_GO 29 30 // This function should be called at the very beginning of the process, 31 // before any instrumented code is executed and before any call to malloc. 32 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_init(); 33 34 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_flush_memory(); 35 36 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read1(void *addr); 37 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read2(void *addr); 38 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read4(void *addr); 39 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read8(void *addr); 40 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read16(void *addr); 41 42 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write1(void *addr); 43 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write2(void *addr); 44 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write4(void *addr); 45 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write8(void *addr); 46 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write16(void *addr); 47 48 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_read2(const void *addr); 49 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_read4(const void *addr); 50 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_read8(const void *addr); 51 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_read16(const void *addr); 52 53 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_write2(void *addr); 54 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_write4(void *addr); 55 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_write8(void *addr); 56 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_unaligned_write16(void *addr); 57 58 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read1_pc(void *addr, void *pc); 59 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read2_pc(void *addr, void *pc); 60 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read4_pc(void *addr, void *pc); 61 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read8_pc(void *addr, void *pc); 62 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_read16_pc(void *addr, void *pc); 63 64 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write1_pc(void *addr, void *pc); 65 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write2_pc(void *addr, void *pc); 66 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write4_pc(void *addr, void *pc); 67 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write8_pc(void *addr, void *pc); 68 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_write16_pc(void *addr, void *pc); 69 70 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_vptr_read(void **vptr_p); 71 SANITIZER_INTERFACE_ATTRIBUTE 72 void __tsan_vptr_update(void **vptr_p, void *new_val); 73 74 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_func_entry(void *call_pc); 75 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_func_exit(); 76 77 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_ignore_thread_begin(); 78 SANITIZER_INTERFACE_ATTRIBUTE void __tsan_ignore_thread_end(); 79 80 SANITIZER_INTERFACE_ATTRIBUTE 81 void *__tsan_external_register_tag(const char *object_type); 82 SANITIZER_INTERFACE_ATTRIBUTE 83 void __tsan_external_register_header(void *tag, const char *header); 84 SANITIZER_INTERFACE_ATTRIBUTE 85 void __tsan_external_assign_tag(void *addr, void *tag); 86 SANITIZER_INTERFACE_ATTRIBUTE 87 void __tsan_external_read(void *addr, void *caller_pc, void *tag); 88 SANITIZER_INTERFACE_ATTRIBUTE 89 void __tsan_external_write(void *addr, void *caller_pc, void *tag); 90 91 SANITIZER_INTERFACE_ATTRIBUTE 92 void __tsan_read_range(void *addr, unsigned long size); // NOLINT 93 SANITIZER_INTERFACE_ATTRIBUTE 94 void __tsan_write_range(void *addr, unsigned long size); // NOLINT 95 96 // User may provide function that would be called right when TSan detects 97 // an error. The argument 'report' is an opaque pointer that can be used to 98 // gather additional information using other TSan report API functions. 99 SANITIZER_INTERFACE_ATTRIBUTE 100 void __tsan_on_report(void *report); 101 102 // If TSan is currently reporting a detected issue on the current thread, 103 // returns an opaque pointer to the current report. Otherwise returns NULL. 104 SANITIZER_INTERFACE_ATTRIBUTE 105 void *__tsan_get_current_report(); 106 107 // Returns a report's description (issue type), number of duplicate issues 108 // found, counts of array data (stack traces, memory operations, locations, 109 // mutexes, threads, unique thread IDs) and a stack trace of a sleep() call (if 110 // one was involved in the issue). 111 SANITIZER_INTERFACE_ATTRIBUTE 112 int __tsan_get_report_data(void *report, const char **description, int *count, 113 int *stack_count, int *mop_count, int *loc_count, 114 int *mutex_count, int *thread_count, 115 int *unique_tid_count, void **sleep_trace, 116 uptr trace_size); 117 118 // Returns information about stack traces included in the report. 119 SANITIZER_INTERFACE_ATTRIBUTE 120 int __tsan_get_report_stack(void *report, uptr idx, void **trace, 121 uptr trace_size); 122 123 // Returns information about memory operations included in the report. 124 SANITIZER_INTERFACE_ATTRIBUTE 125 int __tsan_get_report_mop(void *report, uptr idx, int *tid, void **addr, 126 int *size, int *write, int *atomic, void **trace, 127 uptr trace_size); 128 129 // Returns information about locations included in the report. 130 SANITIZER_INTERFACE_ATTRIBUTE 131 int __tsan_get_report_loc(void *report, uptr idx, const char **type, 132 void **addr, uptr *start, uptr *size, int *tid, 133 int *fd, int *suppressable, void **trace, 134 uptr trace_size); 135 136 SANITIZER_INTERFACE_ATTRIBUTE 137 int __tsan_get_report_loc_object_type(void *report, uptr idx, 138 const char **object_type); 139 140 // Returns information about mutexes included in the report. 141 SANITIZER_INTERFACE_ATTRIBUTE 142 int __tsan_get_report_mutex(void *report, uptr idx, uptr *mutex_id, void **addr, 143 int *destroyed, void **trace, uptr trace_size); 144 145 // Returns information about threads included in the report. 146 SANITIZER_INTERFACE_ATTRIBUTE 147 int __tsan_get_report_thread(void *report, uptr idx, int *tid, tid_t *os_id, 148 int *running, const char **name, int *parent_tid, 149 void **trace, uptr trace_size); 150 151 // Returns information about unique thread IDs included in the report. 152 SANITIZER_INTERFACE_ATTRIBUTE 153 int __tsan_get_report_unique_tid(void *report, uptr idx, int *tid); 154 155 // Returns the type of the pointer (heap, stack, global, ...) and if possible 156 // also the starting address (e.g. of a heap allocation) and size. 157 SANITIZER_INTERFACE_ATTRIBUTE 158 const char *__tsan_locate_address(uptr addr, char *name, uptr name_size, 159 uptr *region_address, uptr *region_size); 160 161 // Returns the allocation stack for a heap pointer. 162 SANITIZER_INTERFACE_ATTRIBUTE 163 int __tsan_get_alloc_stack(uptr addr, uptr *trace, uptr size, int *thread_id, 164 tid_t *os_id); 165 166 #endif // SANITIZER_GO 167 168 #ifdef __cplusplus 169 } // extern "C" 170 #endif 171 172 namespace __tsan { 173 174 // These should match declarations from public tsan_interface_atomic.h header. 175 typedef unsigned char a8; 176 typedef unsigned short a16; // NOLINT 177 typedef unsigned int a32; 178 typedef unsigned long long a64; // NOLINT 179 #if !SANITIZER_GO && (defined(__SIZEOF_INT128__) \ 180 || (__clang_major__ * 100 + __clang_minor__ >= 302)) && !defined(__mips64) 181 __extension__ typedef __int128 a128; 182 # define __TSAN_HAS_INT128 1 183 #else 184 # define __TSAN_HAS_INT128 0 185 #endif 186 187 // Part of ABI, do not change. 188 // http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/atomic?view=markup 189 typedef enum { 190 mo_relaxed, 191 mo_consume, 192 mo_acquire, 193 mo_release, 194 mo_acq_rel, 195 mo_seq_cst 196 } morder; 197 198 struct ThreadState; 199 200 extern "C" { 201 SANITIZER_INTERFACE_ATTRIBUTE 202 a8 __tsan_atomic8_load(const volatile a8 *a, morder mo); 203 SANITIZER_INTERFACE_ATTRIBUTE 204 a16 __tsan_atomic16_load(const volatile a16 *a, morder mo); 205 SANITIZER_INTERFACE_ATTRIBUTE 206 a32 __tsan_atomic32_load(const volatile a32 *a, morder mo); 207 SANITIZER_INTERFACE_ATTRIBUTE 208 a64 __tsan_atomic64_load(const volatile a64 *a, morder mo); 209 #if __TSAN_HAS_INT128 210 SANITIZER_INTERFACE_ATTRIBUTE 211 a128 __tsan_atomic128_load(const volatile a128 *a, morder mo); 212 #endif 213 214 SANITIZER_INTERFACE_ATTRIBUTE 215 void __tsan_atomic8_store(volatile a8 *a, a8 v, morder mo); 216 SANITIZER_INTERFACE_ATTRIBUTE 217 void __tsan_atomic16_store(volatile a16 *a, a16 v, morder mo); 218 SANITIZER_INTERFACE_ATTRIBUTE 219 void __tsan_atomic32_store(volatile a32 *a, a32 v, morder mo); 220 SANITIZER_INTERFACE_ATTRIBUTE 221 void __tsan_atomic64_store(volatile a64 *a, a64 v, morder mo); 222 #if __TSAN_HAS_INT128 223 SANITIZER_INTERFACE_ATTRIBUTE 224 void __tsan_atomic128_store(volatile a128 *a, a128 v, morder mo); 225 #endif 226 227 SANITIZER_INTERFACE_ATTRIBUTE 228 a8 __tsan_atomic8_exchange(volatile a8 *a, a8 v, morder mo); 229 SANITIZER_INTERFACE_ATTRIBUTE 230 a16 __tsan_atomic16_exchange(volatile a16 *a, a16 v, morder mo); 231 SANITIZER_INTERFACE_ATTRIBUTE 232 a32 __tsan_atomic32_exchange(volatile a32 *a, a32 v, morder mo); 233 SANITIZER_INTERFACE_ATTRIBUTE 234 a64 __tsan_atomic64_exchange(volatile a64 *a, a64 v, morder mo); 235 #if __TSAN_HAS_INT128 236 SANITIZER_INTERFACE_ATTRIBUTE 237 a128 __tsan_atomic128_exchange(volatile a128 *a, a128 v, morder mo); 238 #endif 239 240 SANITIZER_INTERFACE_ATTRIBUTE 241 a8 __tsan_atomic8_fetch_add(volatile a8 *a, a8 v, morder mo); 242 SANITIZER_INTERFACE_ATTRIBUTE 243 a16 __tsan_atomic16_fetch_add(volatile a16 *a, a16 v, morder mo); 244 SANITIZER_INTERFACE_ATTRIBUTE 245 a32 __tsan_atomic32_fetch_add(volatile a32 *a, a32 v, morder mo); 246 SANITIZER_INTERFACE_ATTRIBUTE 247 a64 __tsan_atomic64_fetch_add(volatile a64 *a, a64 v, morder mo); 248 #if __TSAN_HAS_INT128 249 SANITIZER_INTERFACE_ATTRIBUTE 250 a128 __tsan_atomic128_fetch_add(volatile a128 *a, a128 v, morder mo); 251 #endif 252 253 SANITIZER_INTERFACE_ATTRIBUTE 254 a8 __tsan_atomic8_fetch_sub(volatile a8 *a, a8 v, morder mo); 255 SANITIZER_INTERFACE_ATTRIBUTE 256 a16 __tsan_atomic16_fetch_sub(volatile a16 *a, a16 v, morder mo); 257 SANITIZER_INTERFACE_ATTRIBUTE 258 a32 __tsan_atomic32_fetch_sub(volatile a32 *a, a32 v, morder mo); 259 SANITIZER_INTERFACE_ATTRIBUTE 260 a64 __tsan_atomic64_fetch_sub(volatile a64 *a, a64 v, morder mo); 261 #if __TSAN_HAS_INT128 262 SANITIZER_INTERFACE_ATTRIBUTE 263 a128 __tsan_atomic128_fetch_sub(volatile a128 *a, a128 v, morder mo); 264 #endif 265 266 SANITIZER_INTERFACE_ATTRIBUTE 267 a8 __tsan_atomic8_fetch_and(volatile a8 *a, a8 v, morder mo); 268 SANITIZER_INTERFACE_ATTRIBUTE 269 a16 __tsan_atomic16_fetch_and(volatile a16 *a, a16 v, morder mo); 270 SANITIZER_INTERFACE_ATTRIBUTE 271 a32 __tsan_atomic32_fetch_and(volatile a32 *a, a32 v, morder mo); 272 SANITIZER_INTERFACE_ATTRIBUTE 273 a64 __tsan_atomic64_fetch_and(volatile a64 *a, a64 v, morder mo); 274 #if __TSAN_HAS_INT128 275 SANITIZER_INTERFACE_ATTRIBUTE 276 a128 __tsan_atomic128_fetch_and(volatile a128 *a, a128 v, morder mo); 277 #endif 278 279 SANITIZER_INTERFACE_ATTRIBUTE 280 a8 __tsan_atomic8_fetch_or(volatile a8 *a, a8 v, morder mo); 281 SANITIZER_INTERFACE_ATTRIBUTE 282 a16 __tsan_atomic16_fetch_or(volatile a16 *a, a16 v, morder mo); 283 SANITIZER_INTERFACE_ATTRIBUTE 284 a32 __tsan_atomic32_fetch_or(volatile a32 *a, a32 v, morder mo); 285 SANITIZER_INTERFACE_ATTRIBUTE 286 a64 __tsan_atomic64_fetch_or(volatile a64 *a, a64 v, morder mo); 287 #if __TSAN_HAS_INT128 288 SANITIZER_INTERFACE_ATTRIBUTE 289 a128 __tsan_atomic128_fetch_or(volatile a128 *a, a128 v, morder mo); 290 #endif 291 292 SANITIZER_INTERFACE_ATTRIBUTE 293 a8 __tsan_atomic8_fetch_xor(volatile a8 *a, a8 v, morder mo); 294 SANITIZER_INTERFACE_ATTRIBUTE 295 a16 __tsan_atomic16_fetch_xor(volatile a16 *a, a16 v, morder mo); 296 SANITIZER_INTERFACE_ATTRIBUTE 297 a32 __tsan_atomic32_fetch_xor(volatile a32 *a, a32 v, morder mo); 298 SANITIZER_INTERFACE_ATTRIBUTE 299 a64 __tsan_atomic64_fetch_xor(volatile a64 *a, a64 v, morder mo); 300 #if __TSAN_HAS_INT128 301 SANITIZER_INTERFACE_ATTRIBUTE 302 a128 __tsan_atomic128_fetch_xor(volatile a128 *a, a128 v, morder mo); 303 #endif 304 305 SANITIZER_INTERFACE_ATTRIBUTE 306 a8 __tsan_atomic8_fetch_nand(volatile a8 *a, a8 v, morder mo); 307 SANITIZER_INTERFACE_ATTRIBUTE 308 a16 __tsan_atomic16_fetch_nand(volatile a16 *a, a16 v, morder mo); 309 SANITIZER_INTERFACE_ATTRIBUTE 310 a32 __tsan_atomic32_fetch_nand(volatile a32 *a, a32 v, morder mo); 311 SANITIZER_INTERFACE_ATTRIBUTE 312 a64 __tsan_atomic64_fetch_nand(volatile a64 *a, a64 v, morder mo); 313 #if __TSAN_HAS_INT128 314 SANITIZER_INTERFACE_ATTRIBUTE 315 a128 __tsan_atomic128_fetch_nand(volatile a128 *a, a128 v, morder mo); 316 #endif 317 318 SANITIZER_INTERFACE_ATTRIBUTE 319 int __tsan_atomic8_compare_exchange_strong(volatile a8 *a, a8 *c, a8 v, 320 morder mo, morder fmo); 321 SANITIZER_INTERFACE_ATTRIBUTE 322 int __tsan_atomic16_compare_exchange_strong(volatile a16 *a, a16 *c, a16 v, 323 morder mo, morder fmo); 324 SANITIZER_INTERFACE_ATTRIBUTE 325 int __tsan_atomic32_compare_exchange_strong(volatile a32 *a, a32 *c, a32 v, 326 morder mo, morder fmo); 327 SANITIZER_INTERFACE_ATTRIBUTE 328 int __tsan_atomic64_compare_exchange_strong(volatile a64 *a, a64 *c, a64 v, 329 morder mo, morder fmo); 330 #if __TSAN_HAS_INT128 331 SANITIZER_INTERFACE_ATTRIBUTE 332 int __tsan_atomic128_compare_exchange_strong(volatile a128 *a, a128 *c, a128 v, 333 morder mo, morder fmo); 334 #endif 335 336 SANITIZER_INTERFACE_ATTRIBUTE 337 int __tsan_atomic8_compare_exchange_weak(volatile a8 *a, a8 *c, a8 v, morder mo, 338 morder fmo); 339 SANITIZER_INTERFACE_ATTRIBUTE 340 int __tsan_atomic16_compare_exchange_weak(volatile a16 *a, a16 *c, a16 v, 341 morder mo, morder fmo); 342 SANITIZER_INTERFACE_ATTRIBUTE 343 int __tsan_atomic32_compare_exchange_weak(volatile a32 *a, a32 *c, a32 v, 344 morder mo, morder fmo); 345 SANITIZER_INTERFACE_ATTRIBUTE 346 int __tsan_atomic64_compare_exchange_weak(volatile a64 *a, a64 *c, a64 v, 347 morder mo, morder fmo); 348 #if __TSAN_HAS_INT128 349 SANITIZER_INTERFACE_ATTRIBUTE 350 int __tsan_atomic128_compare_exchange_weak(volatile a128 *a, a128 *c, a128 v, 351 morder mo, morder fmo); 352 #endif 353 354 SANITIZER_INTERFACE_ATTRIBUTE 355 a8 __tsan_atomic8_compare_exchange_val(volatile a8 *a, a8 c, a8 v, morder mo, 356 morder fmo); 357 SANITIZER_INTERFACE_ATTRIBUTE 358 a16 __tsan_atomic16_compare_exchange_val(volatile a16 *a, a16 c, a16 v, 359 morder mo, morder fmo); 360 SANITIZER_INTERFACE_ATTRIBUTE 361 a32 __tsan_atomic32_compare_exchange_val(volatile a32 *a, a32 c, a32 v, 362 morder mo, morder fmo); 363 SANITIZER_INTERFACE_ATTRIBUTE 364 a64 __tsan_atomic64_compare_exchange_val(volatile a64 *a, a64 c, a64 v, 365 morder mo, morder fmo); 366 #if __TSAN_HAS_INT128 367 SANITIZER_INTERFACE_ATTRIBUTE 368 a128 __tsan_atomic128_compare_exchange_val(volatile a128 *a, a128 c, a128 v, 369 morder mo, morder fmo); 370 #endif 371 372 SANITIZER_INTERFACE_ATTRIBUTE 373 void __tsan_atomic_thread_fence(morder mo); 374 SANITIZER_INTERFACE_ATTRIBUTE 375 void __tsan_atomic_signal_fence(morder mo); 376 377 SANITIZER_INTERFACE_ATTRIBUTE 378 void __tsan_go_atomic32_load(ThreadState *thr, uptr cpc, uptr pc, u8 *a); 379 SANITIZER_INTERFACE_ATTRIBUTE 380 void __tsan_go_atomic64_load(ThreadState *thr, uptr cpc, uptr pc, u8 *a); 381 SANITIZER_INTERFACE_ATTRIBUTE 382 void __tsan_go_atomic32_store(ThreadState *thr, uptr cpc, uptr pc, u8 *a); 383 SANITIZER_INTERFACE_ATTRIBUTE 384 void __tsan_go_atomic64_store(ThreadState *thr, uptr cpc, uptr pc, u8 *a); 385 SANITIZER_INTERFACE_ATTRIBUTE 386 void __tsan_go_atomic32_fetch_add(ThreadState *thr, uptr cpc, uptr pc, u8 *a); 387 SANITIZER_INTERFACE_ATTRIBUTE 388 void __tsan_go_atomic64_fetch_add(ThreadState *thr, uptr cpc, uptr pc, u8 *a); 389 SANITIZER_INTERFACE_ATTRIBUTE 390 void __tsan_go_atomic32_exchange(ThreadState *thr, uptr cpc, uptr pc, u8 *a); 391 SANITIZER_INTERFACE_ATTRIBUTE 392 void __tsan_go_atomic64_exchange(ThreadState *thr, uptr cpc, uptr pc, u8 *a); 393 SANITIZER_INTERFACE_ATTRIBUTE 394 void __tsan_go_atomic32_compare_exchange(ThreadState *thr, uptr cpc, uptr pc, 395 u8 *a); 396 SANITIZER_INTERFACE_ATTRIBUTE 397 void __tsan_go_atomic64_compare_exchange(ThreadState *thr, uptr cpc, uptr pc, 398 u8 *a); 399 } // extern "C" 400 401 } // namespace __tsan 402 403 #endif // TSAN_INTERFACE_H 404