1 //===-- tsan_platform.h -----------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file is a part of ThreadSanitizer (TSan), a race detector. 11 // 12 // Platform-specific code. 13 //===----------------------------------------------------------------------===// 14 15 #ifndef TSAN_PLATFORM_H 16 #define TSAN_PLATFORM_H 17 18 #if !defined(__LP64__) && !defined(_WIN64) 19 # error "Only 64-bit is supported" 20 #endif 21 22 #include "tsan_defs.h" 23 #include "tsan_trace.h" 24 25 namespace __tsan { 26 27 #if !SANITIZER_GO 28 29 #if defined(__x86_64__) 30 /* 31 C/C++ on linux/x86_64 and freebsd/x86_64 32 0000 0000 1000 - 0080 0000 0000: main binary and/or MAP_32BIT mappings (512GB) 33 0040 0000 0000 - 0100 0000 0000: - 34 0100 0000 0000 - 2000 0000 0000: shadow 35 2000 0000 0000 - 3000 0000 0000: - 36 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects) 37 4000 0000 0000 - 5500 0000 0000: - 38 5500 0000 0000 - 5680 0000 0000: pie binaries without ASLR or on 4.1+ kernels 39 5680 0000 0000 - 6000 0000 0000: - 40 6000 0000 0000 - 6200 0000 0000: traces 41 6200 0000 0000 - 7d00 0000 0000: - 42 7b00 0000 0000 - 7c00 0000 0000: heap 43 7c00 0000 0000 - 7e80 0000 0000: - 44 7e80 0000 0000 - 8000 0000 0000: modules and main thread stack 45 46 C/C++ on netbsd/amd64 can reuse the same mapping: 47 * The address space starts from 0x1000 (option with 0x0) and ends with 48 0x7f7ffffff000. 49 * LoAppMem-kHeapMemEnd can be reused as it is. 50 * No VDSO support. 51 * No MidAppMem region. 52 * No additional HeapMem region. 53 * HiAppMem contains the stack, loader, shared libraries and heap. 54 * Stack on NetBSD/amd64 has prereserved 128MB. 55 * Heap grows downwards (top-down). 56 * ASLR must be disabled per-process or globally. 57 58 */ 59 struct Mapping { 60 static const uptr kMetaShadowBeg = 0x300000000000ull; 61 static const uptr kMetaShadowEnd = 0x340000000000ull; 62 static const uptr kTraceMemBeg = 0x600000000000ull; 63 static const uptr kTraceMemEnd = 0x620000000000ull; 64 static const uptr kShadowBeg = 0x010000000000ull; 65 static const uptr kShadowEnd = 0x200000000000ull; 66 static const uptr kHeapMemBeg = 0x7b0000000000ull; 67 static const uptr kHeapMemEnd = 0x7c0000000000ull; 68 static const uptr kLoAppMemBeg = 0x000000001000ull; 69 static const uptr kLoAppMemEnd = 0x008000000000ull; 70 static const uptr kMidAppMemBeg = 0x550000000000ull; 71 static const uptr kMidAppMemEnd = 0x568000000000ull; 72 static const uptr kHiAppMemBeg = 0x7e8000000000ull; 73 static const uptr kHiAppMemEnd = 0x800000000000ull; 74 static const uptr kAppMemMsk = 0x780000000000ull; 75 static const uptr kAppMemXor = 0x040000000000ull; 76 static const uptr kVdsoBeg = 0xf000000000000000ull; 77 }; 78 79 #define TSAN_MID_APP_RANGE 1 80 #elif defined(__mips64) 81 /* 82 C/C++ on linux/mips64 (40-bit VMA) 83 0000 0000 00 - 0100 0000 00: - (4 GB) 84 0100 0000 00 - 0200 0000 00: main binary (4 GB) 85 0200 0000 00 - 2000 0000 00: - (120 GB) 86 2000 0000 00 - 4000 0000 00: shadow (128 GB) 87 4000 0000 00 - 5000 0000 00: metainfo (memory blocks and sync objects) (64 GB) 88 5000 0000 00 - aa00 0000 00: - (360 GB) 89 aa00 0000 00 - ab00 0000 00: main binary (PIE) (4 GB) 90 ab00 0000 00 - b000 0000 00: - (20 GB) 91 b000 0000 00 - b200 0000 00: traces (8 GB) 92 b200 0000 00 - fe00 0000 00: - (304 GB) 93 fe00 0000 00 - ff00 0000 00: heap (4 GB) 94 ff00 0000 00 - ff80 0000 00: - (2 GB) 95 ff80 0000 00 - ffff ffff ff: modules and main thread stack (<2 GB) 96 */ 97 struct Mapping { 98 static const uptr kMetaShadowBeg = 0x4000000000ull; 99 static const uptr kMetaShadowEnd = 0x5000000000ull; 100 static const uptr kTraceMemBeg = 0xb000000000ull; 101 static const uptr kTraceMemEnd = 0xb200000000ull; 102 static const uptr kShadowBeg = 0x2000000000ull; 103 static const uptr kShadowEnd = 0x4000000000ull; 104 static const uptr kHeapMemBeg = 0xfe00000000ull; 105 static const uptr kHeapMemEnd = 0xff00000000ull; 106 static const uptr kLoAppMemBeg = 0x0100000000ull; 107 static const uptr kLoAppMemEnd = 0x0200000000ull; 108 static const uptr kMidAppMemBeg = 0xaa00000000ull; 109 static const uptr kMidAppMemEnd = 0xab00000000ull; 110 static const uptr kHiAppMemBeg = 0xff80000000ull; 111 static const uptr kHiAppMemEnd = 0xffffffffffull; 112 static const uptr kAppMemMsk = 0xf800000000ull; 113 static const uptr kAppMemXor = 0x0800000000ull; 114 static const uptr kVdsoBeg = 0xfffff00000ull; 115 }; 116 117 #define TSAN_MID_APP_RANGE 1 118 #elif defined(__aarch64__) && defined(__APPLE__) 119 /* 120 C/C++ on Darwin/iOS/ARM64 (36-bit VMA, 64 GB VM) 121 0000 0000 00 - 0100 0000 00: - (4 GB) 122 0100 0000 00 - 0200 0000 00: main binary, modules, thread stacks (4 GB) 123 0200 0000 00 - 0300 0000 00: heap (4 GB) 124 0300 0000 00 - 0400 0000 00: - (4 GB) 125 0400 0000 00 - 0c00 0000 00: shadow memory (32 GB) 126 0c00 0000 00 - 0d00 0000 00: - (4 GB) 127 0d00 0000 00 - 0e00 0000 00: metainfo (4 GB) 128 0e00 0000 00 - 0f00 0000 00: - (4 GB) 129 0f00 0000 00 - 0fc0 0000 00: traces (3 GB) 130 0fc0 0000 00 - 1000 0000 00: - 131 */ 132 struct Mapping { 133 static const uptr kLoAppMemBeg = 0x0100000000ull; 134 static const uptr kLoAppMemEnd = 0x0200000000ull; 135 static const uptr kHeapMemBeg = 0x0200000000ull; 136 static const uptr kHeapMemEnd = 0x0300000000ull; 137 static const uptr kShadowBeg = 0x0400000000ull; 138 static const uptr kShadowEnd = 0x0c00000000ull; 139 static const uptr kMetaShadowBeg = 0x0d00000000ull; 140 static const uptr kMetaShadowEnd = 0x0e00000000ull; 141 static const uptr kTraceMemBeg = 0x0f00000000ull; 142 static const uptr kTraceMemEnd = 0x0fc0000000ull; 143 static const uptr kHiAppMemBeg = 0x0fc0000000ull; 144 static const uptr kHiAppMemEnd = 0x0fc0000000ull; 145 static const uptr kAppMemMsk = 0x0ull; 146 static const uptr kAppMemXor = 0x0ull; 147 static const uptr kVdsoBeg = 0x7000000000000000ull; 148 }; 149 150 #elif defined(__aarch64__) 151 // AArch64 supports multiple VMA which leads to multiple address transformation 152 // functions. To support these multiple VMAS transformations and mappings TSAN 153 // runtime for AArch64 uses an external memory read (vmaSize) to select which 154 // mapping to use. Although slower, it make a same instrumented binary run on 155 // multiple kernels. 156 157 /* 158 C/C++ on linux/aarch64 (39-bit VMA) 159 0000 0010 00 - 0100 0000 00: main binary 160 0100 0000 00 - 0800 0000 00: - 161 0800 0000 00 - 2000 0000 00: shadow memory 162 2000 0000 00 - 3100 0000 00: - 163 3100 0000 00 - 3400 0000 00: metainfo 164 3400 0000 00 - 5500 0000 00: - 165 5500 0000 00 - 5600 0000 00: main binary (PIE) 166 5600 0000 00 - 6000 0000 00: - 167 6000 0000 00 - 6200 0000 00: traces 168 6200 0000 00 - 7d00 0000 00: - 169 7c00 0000 00 - 7d00 0000 00: heap 170 7d00 0000 00 - 7fff ffff ff: modules and main thread stack 171 */ 172 struct Mapping39 { 173 static const uptr kLoAppMemBeg = 0x0000001000ull; 174 static const uptr kLoAppMemEnd = 0x0100000000ull; 175 static const uptr kShadowBeg = 0x0800000000ull; 176 static const uptr kShadowEnd = 0x2000000000ull; 177 static const uptr kMetaShadowBeg = 0x3100000000ull; 178 static const uptr kMetaShadowEnd = 0x3400000000ull; 179 static const uptr kMidAppMemBeg = 0x5500000000ull; 180 static const uptr kMidAppMemEnd = 0x5600000000ull; 181 static const uptr kTraceMemBeg = 0x6000000000ull; 182 static const uptr kTraceMemEnd = 0x6200000000ull; 183 static const uptr kHeapMemBeg = 0x7c00000000ull; 184 static const uptr kHeapMemEnd = 0x7d00000000ull; 185 static const uptr kHiAppMemBeg = 0x7e00000000ull; 186 static const uptr kHiAppMemEnd = 0x7fffffffffull; 187 static const uptr kAppMemMsk = 0x7800000000ull; 188 static const uptr kAppMemXor = 0x0200000000ull; 189 static const uptr kVdsoBeg = 0x7f00000000ull; 190 }; 191 192 /* 193 C/C++ on linux/aarch64 (42-bit VMA) 194 00000 0010 00 - 01000 0000 00: main binary 195 01000 0000 00 - 10000 0000 00: - 196 10000 0000 00 - 20000 0000 00: shadow memory 197 20000 0000 00 - 26000 0000 00: - 198 26000 0000 00 - 28000 0000 00: metainfo 199 28000 0000 00 - 2aa00 0000 00: - 200 2aa00 0000 00 - 2ab00 0000 00: main binary (PIE) 201 2ab00 0000 00 - 36200 0000 00: - 202 36200 0000 00 - 36240 0000 00: traces 203 36240 0000 00 - 3e000 0000 00: - 204 3e000 0000 00 - 3f000 0000 00: heap 205 3f000 0000 00 - 3ffff ffff ff: modules and main thread stack 206 */ 207 struct Mapping42 { 208 static const uptr kLoAppMemBeg = 0x00000001000ull; 209 static const uptr kLoAppMemEnd = 0x01000000000ull; 210 static const uptr kShadowBeg = 0x10000000000ull; 211 static const uptr kShadowEnd = 0x20000000000ull; 212 static const uptr kMetaShadowBeg = 0x26000000000ull; 213 static const uptr kMetaShadowEnd = 0x28000000000ull; 214 static const uptr kMidAppMemBeg = 0x2aa00000000ull; 215 static const uptr kMidAppMemEnd = 0x2ab00000000ull; 216 static const uptr kTraceMemBeg = 0x36200000000ull; 217 static const uptr kTraceMemEnd = 0x36400000000ull; 218 static const uptr kHeapMemBeg = 0x3e000000000ull; 219 static const uptr kHeapMemEnd = 0x3f000000000ull; 220 static const uptr kHiAppMemBeg = 0x3f000000000ull; 221 static const uptr kHiAppMemEnd = 0x3ffffffffffull; 222 static const uptr kAppMemMsk = 0x3c000000000ull; 223 static const uptr kAppMemXor = 0x04000000000ull; 224 static const uptr kVdsoBeg = 0x37f00000000ull; 225 }; 226 227 struct Mapping48 { 228 static const uptr kLoAppMemBeg = 0x0000000001000ull; 229 static const uptr kLoAppMemEnd = 0x0000200000000ull; 230 static const uptr kShadowBeg = 0x0002000000000ull; 231 static const uptr kShadowEnd = 0x0004000000000ull; 232 static const uptr kMetaShadowBeg = 0x0005000000000ull; 233 static const uptr kMetaShadowEnd = 0x0006000000000ull; 234 static const uptr kMidAppMemBeg = 0x0aaaa00000000ull; 235 static const uptr kMidAppMemEnd = 0x0aaaf00000000ull; 236 static const uptr kTraceMemBeg = 0x0f06000000000ull; 237 static const uptr kTraceMemEnd = 0x0f06200000000ull; 238 static const uptr kHeapMemBeg = 0x0ffff00000000ull; 239 static const uptr kHeapMemEnd = 0x0ffff00000000ull; 240 static const uptr kHiAppMemBeg = 0x0ffff00000000ull; 241 static const uptr kHiAppMemEnd = 0x1000000000000ull; 242 static const uptr kAppMemMsk = 0x0fff800000000ull; 243 static const uptr kAppMemXor = 0x0000800000000ull; 244 static const uptr kVdsoBeg = 0xffff000000000ull; 245 }; 246 247 // Indicates the runtime will define the memory regions at runtime. 248 #define TSAN_RUNTIME_VMA 1 249 // Indicates that mapping defines a mid range memory segment. 250 #define TSAN_MID_APP_RANGE 1 251 #elif defined(__powerpc64__) 252 // PPC64 supports multiple VMA which leads to multiple address transformation 253 // functions. To support these multiple VMAS transformations and mappings TSAN 254 // runtime for PPC64 uses an external memory read (vmaSize) to select which 255 // mapping to use. Although slower, it make a same instrumented binary run on 256 // multiple kernels. 257 258 /* 259 C/C++ on linux/powerpc64 (44-bit VMA) 260 0000 0000 0100 - 0001 0000 0000: main binary 261 0001 0000 0000 - 0001 0000 0000: - 262 0001 0000 0000 - 0b00 0000 0000: shadow 263 0b00 0000 0000 - 0b00 0000 0000: - 264 0b00 0000 0000 - 0d00 0000 0000: metainfo (memory blocks and sync objects) 265 0d00 0000 0000 - 0d00 0000 0000: - 266 0d00 0000 0000 - 0f00 0000 0000: traces 267 0f00 0000 0000 - 0f00 0000 0000: - 268 0f00 0000 0000 - 0f50 0000 0000: heap 269 0f50 0000 0000 - 0f60 0000 0000: - 270 0f60 0000 0000 - 1000 0000 0000: modules and main thread stack 271 */ 272 struct Mapping44 { 273 static const uptr kMetaShadowBeg = 0x0b0000000000ull; 274 static const uptr kMetaShadowEnd = 0x0d0000000000ull; 275 static const uptr kTraceMemBeg = 0x0d0000000000ull; 276 static const uptr kTraceMemEnd = 0x0f0000000000ull; 277 static const uptr kShadowBeg = 0x000100000000ull; 278 static const uptr kShadowEnd = 0x0b0000000000ull; 279 static const uptr kLoAppMemBeg = 0x000000000100ull; 280 static const uptr kLoAppMemEnd = 0x000100000000ull; 281 static const uptr kHeapMemBeg = 0x0f0000000000ull; 282 static const uptr kHeapMemEnd = 0x0f5000000000ull; 283 static const uptr kHiAppMemBeg = 0x0f6000000000ull; 284 static const uptr kHiAppMemEnd = 0x100000000000ull; // 44 bits 285 static const uptr kAppMemMsk = 0x0f0000000000ull; 286 static const uptr kAppMemXor = 0x002100000000ull; 287 static const uptr kVdsoBeg = 0x3c0000000000000ull; 288 }; 289 290 /* 291 C/C++ on linux/powerpc64 (46-bit VMA) 292 0000 0000 1000 - 0100 0000 0000: main binary 293 0100 0000 0000 - 0200 0000 0000: - 294 0100 0000 0000 - 1000 0000 0000: shadow 295 1000 0000 0000 - 1000 0000 0000: - 296 1000 0000 0000 - 2000 0000 0000: metainfo (memory blocks and sync objects) 297 2000 0000 0000 - 2000 0000 0000: - 298 2000 0000 0000 - 2200 0000 0000: traces 299 2200 0000 0000 - 3d00 0000 0000: - 300 3d00 0000 0000 - 3e00 0000 0000: heap 301 3e00 0000 0000 - 3e80 0000 0000: - 302 3e80 0000 0000 - 4000 0000 0000: modules and main thread stack 303 */ 304 struct Mapping46 { 305 static const uptr kMetaShadowBeg = 0x100000000000ull; 306 static const uptr kMetaShadowEnd = 0x200000000000ull; 307 static const uptr kTraceMemBeg = 0x200000000000ull; 308 static const uptr kTraceMemEnd = 0x220000000000ull; 309 static const uptr kShadowBeg = 0x010000000000ull; 310 static const uptr kShadowEnd = 0x100000000000ull; 311 static const uptr kHeapMemBeg = 0x3d0000000000ull; 312 static const uptr kHeapMemEnd = 0x3e0000000000ull; 313 static const uptr kLoAppMemBeg = 0x000000001000ull; 314 static const uptr kLoAppMemEnd = 0x010000000000ull; 315 static const uptr kHiAppMemBeg = 0x3e8000000000ull; 316 static const uptr kHiAppMemEnd = 0x400000000000ull; // 46 bits 317 static const uptr kAppMemMsk = 0x3c0000000000ull; 318 static const uptr kAppMemXor = 0x020000000000ull; 319 static const uptr kVdsoBeg = 0x7800000000000000ull; 320 }; 321 322 /* 323 C/C++ on linux/powerpc64 (47-bit VMA) 324 0000 0000 1000 - 0100 0000 0000: main binary 325 0100 0000 0000 - 0200 0000 0000: - 326 0100 0000 0000 - 1000 0000 0000: shadow 327 1000 0000 0000 - 1000 0000 0000: - 328 1000 0000 0000 - 2000 0000 0000: metainfo (memory blocks and sync objects) 329 2000 0000 0000 - 2000 0000 0000: - 330 2000 0000 0000 - 2200 0000 0000: traces 331 2200 0000 0000 - 7d00 0000 0000: - 332 7d00 0000 0000 - 7e00 0000 0000: heap 333 7e00 0000 0000 - 7e80 0000 0000: - 334 7e80 0000 0000 - 8000 0000 0000: modules and main thread stack 335 */ 336 struct Mapping47 { 337 static const uptr kMetaShadowBeg = 0x100000000000ull; 338 static const uptr kMetaShadowEnd = 0x200000000000ull; 339 static const uptr kTraceMemBeg = 0x200000000000ull; 340 static const uptr kTraceMemEnd = 0x220000000000ull; 341 static const uptr kShadowBeg = 0x010000000000ull; 342 static const uptr kShadowEnd = 0x100000000000ull; 343 static const uptr kHeapMemBeg = 0x7d0000000000ull; 344 static const uptr kHeapMemEnd = 0x7e0000000000ull; 345 static const uptr kLoAppMemBeg = 0x000000001000ull; 346 static const uptr kLoAppMemEnd = 0x010000000000ull; 347 static const uptr kHiAppMemBeg = 0x7e8000000000ull; 348 static const uptr kHiAppMemEnd = 0x800000000000ull; // 47 bits 349 static const uptr kAppMemMsk = 0x7c0000000000ull; 350 static const uptr kAppMemXor = 0x020000000000ull; 351 static const uptr kVdsoBeg = 0x7800000000000000ull; 352 }; 353 354 // Indicates the runtime will define the memory regions at runtime. 355 #define TSAN_RUNTIME_VMA 1 356 #endif 357 358 #elif SANITIZER_GO && !SANITIZER_WINDOWS && defined(__x86_64__) 359 360 /* Go on linux, darwin and freebsd on x86_64 361 0000 0000 1000 - 0000 1000 0000: executable 362 0000 1000 0000 - 00c0 0000 0000: - 363 00c0 0000 0000 - 00e0 0000 0000: heap 364 00e0 0000 0000 - 2000 0000 0000: - 365 2000 0000 0000 - 2380 0000 0000: shadow 366 2380 0000 0000 - 3000 0000 0000: - 367 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects) 368 4000 0000 0000 - 6000 0000 0000: - 369 6000 0000 0000 - 6200 0000 0000: traces 370 6200 0000 0000 - 8000 0000 0000: - 371 */ 372 373 struct Mapping { 374 static const uptr kMetaShadowBeg = 0x300000000000ull; 375 static const uptr kMetaShadowEnd = 0x400000000000ull; 376 static const uptr kTraceMemBeg = 0x600000000000ull; 377 static const uptr kTraceMemEnd = 0x620000000000ull; 378 static const uptr kShadowBeg = 0x200000000000ull; 379 static const uptr kShadowEnd = 0x238000000000ull; 380 static const uptr kAppMemBeg = 0x000000001000ull; 381 static const uptr kAppMemEnd = 0x00e000000000ull; 382 }; 383 384 #elif SANITIZER_GO && SANITIZER_WINDOWS 385 386 /* Go on windows 387 0000 0000 1000 - 0000 1000 0000: executable 388 0000 1000 0000 - 00f8 0000 0000: - 389 00c0 0000 0000 - 00e0 0000 0000: heap 390 00e0 0000 0000 - 0100 0000 0000: - 391 0100 0000 0000 - 0500 0000 0000: shadow 392 0500 0000 0000 - 0560 0000 0000: - 393 0560 0000 0000 - 0760 0000 0000: traces 394 0760 0000 0000 - 07d0 0000 0000: metainfo (memory blocks and sync objects) 395 07d0 0000 0000 - 8000 0000 0000: - 396 */ 397 398 struct Mapping { 399 static const uptr kMetaShadowBeg = 0x076000000000ull; 400 static const uptr kMetaShadowEnd = 0x07d000000000ull; 401 static const uptr kTraceMemBeg = 0x056000000000ull; 402 static const uptr kTraceMemEnd = 0x076000000000ull; 403 static const uptr kShadowBeg = 0x010000000000ull; 404 static const uptr kShadowEnd = 0x050000000000ull; 405 static const uptr kAppMemBeg = 0x000000001000ull; 406 static const uptr kAppMemEnd = 0x00e000000000ull; 407 }; 408 409 #elif SANITIZER_GO && defined(__powerpc64__) 410 411 /* Only Mapping46 and Mapping47 are currently supported for powercp64 on Go. */ 412 413 /* Go on linux/powerpc64 (46-bit VMA) 414 0000 0000 1000 - 0000 1000 0000: executable 415 0000 1000 0000 - 00c0 0000 0000: - 416 00c0 0000 0000 - 00e0 0000 0000: heap 417 00e0 0000 0000 - 2000 0000 0000: - 418 2000 0000 0000 - 2380 0000 0000: shadow 419 2380 0000 0000 - 2400 0000 0000: - 420 2400 0000 0000 - 3400 0000 0000: metainfo (memory blocks and sync objects) 421 3400 0000 0000 - 3600 0000 0000: - 422 3600 0000 0000 - 3800 0000 0000: traces 423 3800 0000 0000 - 4000 0000 0000: - 424 */ 425 426 struct Mapping46 { 427 static const uptr kMetaShadowBeg = 0x240000000000ull; 428 static const uptr kMetaShadowEnd = 0x340000000000ull; 429 static const uptr kTraceMemBeg = 0x360000000000ull; 430 static const uptr kTraceMemEnd = 0x380000000000ull; 431 static const uptr kShadowBeg = 0x200000000000ull; 432 static const uptr kShadowEnd = 0x238000000000ull; 433 static const uptr kAppMemBeg = 0x000000001000ull; 434 static const uptr kAppMemEnd = 0x00e000000000ull; 435 }; 436 437 /* Go on linux/powerpc64 (47-bit VMA) 438 0000 0000 1000 - 0000 1000 0000: executable 439 0000 1000 0000 - 00c0 0000 0000: - 440 00c0 0000 0000 - 00e0 0000 0000: heap 441 00e0 0000 0000 - 2000 0000 0000: - 442 2000 0000 0000 - 3000 0000 0000: shadow 443 3000 0000 0000 - 3000 0000 0000: - 444 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects) 445 4000 0000 0000 - 6000 0000 0000: - 446 6000 0000 0000 - 6200 0000 0000: traces 447 6200 0000 0000 - 8000 0000 0000: - 448 */ 449 450 struct Mapping47 { 451 static const uptr kMetaShadowBeg = 0x300000000000ull; 452 static const uptr kMetaShadowEnd = 0x400000000000ull; 453 static const uptr kTraceMemBeg = 0x600000000000ull; 454 static const uptr kTraceMemEnd = 0x620000000000ull; 455 static const uptr kShadowBeg = 0x200000000000ull; 456 static const uptr kShadowEnd = 0x300000000000ull; 457 static const uptr kAppMemBeg = 0x000000001000ull; 458 static const uptr kAppMemEnd = 0x00e000000000ull; 459 }; 460 461 #elif SANITIZER_GO && defined(__aarch64__) 462 463 /* Go on linux/aarch64 (48-bit VMA) 464 0000 0000 1000 - 0000 1000 0000: executable 465 0000 1000 0000 - 00c0 0000 0000: - 466 00c0 0000 0000 - 00e0 0000 0000: heap 467 00e0 0000 0000 - 2000 0000 0000: - 468 2000 0000 0000 - 3000 0000 0000: shadow 469 3000 0000 0000 - 3000 0000 0000: - 470 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects) 471 4000 0000 0000 - 6000 0000 0000: - 472 6000 0000 0000 - 6200 0000 0000: traces 473 6200 0000 0000 - 8000 0000 0000: - 474 */ 475 476 struct Mapping { 477 static const uptr kMetaShadowBeg = 0x300000000000ull; 478 static const uptr kMetaShadowEnd = 0x400000000000ull; 479 static const uptr kTraceMemBeg = 0x600000000000ull; 480 static const uptr kTraceMemEnd = 0x620000000000ull; 481 static const uptr kShadowBeg = 0x200000000000ull; 482 static const uptr kShadowEnd = 0x300000000000ull; 483 static const uptr kAppMemBeg = 0x000000001000ull; 484 static const uptr kAppMemEnd = 0x00e000000000ull; 485 }; 486 487 // Indicates the runtime will define the memory regions at runtime. 488 #define TSAN_RUNTIME_VMA 1 489 490 #else 491 # error "Unknown platform" 492 #endif 493 494 495 #ifdef TSAN_RUNTIME_VMA 496 extern uptr vmaSize; 497 #endif 498 499 500 enum MappingType { 501 MAPPING_LO_APP_BEG, 502 MAPPING_LO_APP_END, 503 MAPPING_HI_APP_BEG, 504 MAPPING_HI_APP_END, 505 #ifdef TSAN_MID_APP_RANGE 506 MAPPING_MID_APP_BEG, 507 MAPPING_MID_APP_END, 508 #endif 509 MAPPING_HEAP_BEG, 510 MAPPING_HEAP_END, 511 MAPPING_APP_BEG, 512 MAPPING_APP_END, 513 MAPPING_SHADOW_BEG, 514 MAPPING_SHADOW_END, 515 MAPPING_META_SHADOW_BEG, 516 MAPPING_META_SHADOW_END, 517 MAPPING_TRACE_BEG, 518 MAPPING_TRACE_END, 519 MAPPING_VDSO_BEG, 520 }; 521 522 template<typename Mapping, int Type> 523 uptr MappingImpl(void) { 524 switch (Type) { 525 #if !SANITIZER_GO 526 case MAPPING_LO_APP_BEG: return Mapping::kLoAppMemBeg; 527 case MAPPING_LO_APP_END: return Mapping::kLoAppMemEnd; 528 # ifdef TSAN_MID_APP_RANGE 529 case MAPPING_MID_APP_BEG: return Mapping::kMidAppMemBeg; 530 case MAPPING_MID_APP_END: return Mapping::kMidAppMemEnd; 531 # endif 532 case MAPPING_HI_APP_BEG: return Mapping::kHiAppMemBeg; 533 case MAPPING_HI_APP_END: return Mapping::kHiAppMemEnd; 534 case MAPPING_HEAP_BEG: return Mapping::kHeapMemBeg; 535 case MAPPING_HEAP_END: return Mapping::kHeapMemEnd; 536 case MAPPING_VDSO_BEG: return Mapping::kVdsoBeg; 537 #else 538 case MAPPING_APP_BEG: return Mapping::kAppMemBeg; 539 case MAPPING_APP_END: return Mapping::kAppMemEnd; 540 #endif 541 case MAPPING_SHADOW_BEG: return Mapping::kShadowBeg; 542 case MAPPING_SHADOW_END: return Mapping::kShadowEnd; 543 case MAPPING_META_SHADOW_BEG: return Mapping::kMetaShadowBeg; 544 case MAPPING_META_SHADOW_END: return Mapping::kMetaShadowEnd; 545 case MAPPING_TRACE_BEG: return Mapping::kTraceMemBeg; 546 case MAPPING_TRACE_END: return Mapping::kTraceMemEnd; 547 } 548 } 549 550 template<int Type> 551 uptr MappingArchImpl(void) { 552 #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO 553 switch (vmaSize) { 554 case 39: return MappingImpl<Mapping39, Type>(); 555 case 42: return MappingImpl<Mapping42, Type>(); 556 case 48: return MappingImpl<Mapping48, Type>(); 557 } 558 DCHECK(0); 559 return 0; 560 #elif defined(__powerpc64__) 561 switch (vmaSize) { 562 #if !SANITIZER_GO 563 case 44: return MappingImpl<Mapping44, Type>(); 564 #endif 565 case 46: return MappingImpl<Mapping46, Type>(); 566 case 47: return MappingImpl<Mapping47, Type>(); 567 } 568 DCHECK(0); 569 return 0; 570 #else 571 return MappingImpl<Mapping, Type>(); 572 #endif 573 } 574 575 #if !SANITIZER_GO 576 ALWAYS_INLINE 577 uptr LoAppMemBeg(void) { 578 return MappingArchImpl<MAPPING_LO_APP_BEG>(); 579 } 580 ALWAYS_INLINE 581 uptr LoAppMemEnd(void) { 582 return MappingArchImpl<MAPPING_LO_APP_END>(); 583 } 584 585 #ifdef TSAN_MID_APP_RANGE 586 ALWAYS_INLINE 587 uptr MidAppMemBeg(void) { 588 return MappingArchImpl<MAPPING_MID_APP_BEG>(); 589 } 590 ALWAYS_INLINE 591 uptr MidAppMemEnd(void) { 592 return MappingArchImpl<MAPPING_MID_APP_END>(); 593 } 594 #endif 595 596 ALWAYS_INLINE 597 uptr HeapMemBeg(void) { 598 return MappingArchImpl<MAPPING_HEAP_BEG>(); 599 } 600 ALWAYS_INLINE 601 uptr HeapMemEnd(void) { 602 return MappingArchImpl<MAPPING_HEAP_END>(); 603 } 604 605 ALWAYS_INLINE 606 uptr HiAppMemBeg(void) { 607 return MappingArchImpl<MAPPING_HI_APP_BEG>(); 608 } 609 ALWAYS_INLINE 610 uptr HiAppMemEnd(void) { 611 return MappingArchImpl<MAPPING_HI_APP_END>(); 612 } 613 614 ALWAYS_INLINE 615 uptr VdsoBeg(void) { 616 return MappingArchImpl<MAPPING_VDSO_BEG>(); 617 } 618 619 #else 620 621 ALWAYS_INLINE 622 uptr AppMemBeg(void) { 623 return MappingArchImpl<MAPPING_APP_BEG>(); 624 } 625 ALWAYS_INLINE 626 uptr AppMemEnd(void) { 627 return MappingArchImpl<MAPPING_APP_END>(); 628 } 629 630 #endif 631 632 static inline 633 bool GetUserRegion(int i, uptr *start, uptr *end) { 634 switch (i) { 635 default: 636 return false; 637 #if !SANITIZER_GO 638 case 0: 639 *start = LoAppMemBeg(); 640 *end = LoAppMemEnd(); 641 return true; 642 case 1: 643 *start = HiAppMemBeg(); 644 *end = HiAppMemEnd(); 645 return true; 646 case 2: 647 *start = HeapMemBeg(); 648 *end = HeapMemEnd(); 649 return true; 650 # ifdef TSAN_MID_APP_RANGE 651 case 3: 652 *start = MidAppMemBeg(); 653 *end = MidAppMemEnd(); 654 return true; 655 # endif 656 #else 657 case 0: 658 *start = AppMemBeg(); 659 *end = AppMemEnd(); 660 return true; 661 #endif 662 } 663 } 664 665 ALWAYS_INLINE 666 uptr ShadowBeg(void) { 667 return MappingArchImpl<MAPPING_SHADOW_BEG>(); 668 } 669 ALWAYS_INLINE 670 uptr ShadowEnd(void) { 671 return MappingArchImpl<MAPPING_SHADOW_END>(); 672 } 673 674 ALWAYS_INLINE 675 uptr MetaShadowBeg(void) { 676 return MappingArchImpl<MAPPING_META_SHADOW_BEG>(); 677 } 678 ALWAYS_INLINE 679 uptr MetaShadowEnd(void) { 680 return MappingArchImpl<MAPPING_META_SHADOW_END>(); 681 } 682 683 ALWAYS_INLINE 684 uptr TraceMemBeg(void) { 685 return MappingArchImpl<MAPPING_TRACE_BEG>(); 686 } 687 ALWAYS_INLINE 688 uptr TraceMemEnd(void) { 689 return MappingArchImpl<MAPPING_TRACE_END>(); 690 } 691 692 693 template<typename Mapping> 694 bool IsAppMemImpl(uptr mem) { 695 #if !SANITIZER_GO 696 return (mem >= Mapping::kHeapMemBeg && mem < Mapping::kHeapMemEnd) || 697 # ifdef TSAN_MID_APP_RANGE 698 (mem >= Mapping::kMidAppMemBeg && mem < Mapping::kMidAppMemEnd) || 699 # endif 700 (mem >= Mapping::kLoAppMemBeg && mem < Mapping::kLoAppMemEnd) || 701 (mem >= Mapping::kHiAppMemBeg && mem < Mapping::kHiAppMemEnd); 702 #else 703 return mem >= Mapping::kAppMemBeg && mem < Mapping::kAppMemEnd; 704 #endif 705 } 706 707 ALWAYS_INLINE 708 bool IsAppMem(uptr mem) { 709 #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO 710 switch (vmaSize) { 711 case 39: return IsAppMemImpl<Mapping39>(mem); 712 case 42: return IsAppMemImpl<Mapping42>(mem); 713 case 48: return IsAppMemImpl<Mapping48>(mem); 714 } 715 DCHECK(0); 716 return false; 717 #elif defined(__powerpc64__) 718 switch (vmaSize) { 719 #if !SANITIZER_GO 720 case 44: return IsAppMemImpl<Mapping44>(mem); 721 #endif 722 case 46: return IsAppMemImpl<Mapping46>(mem); 723 case 47: return IsAppMemImpl<Mapping47>(mem); 724 } 725 DCHECK(0); 726 return false; 727 #else 728 return IsAppMemImpl<Mapping>(mem); 729 #endif 730 } 731 732 733 template<typename Mapping> 734 bool IsShadowMemImpl(uptr mem) { 735 return mem >= Mapping::kShadowBeg && mem <= Mapping::kShadowEnd; 736 } 737 738 ALWAYS_INLINE 739 bool IsShadowMem(uptr mem) { 740 #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO 741 switch (vmaSize) { 742 case 39: return IsShadowMemImpl<Mapping39>(mem); 743 case 42: return IsShadowMemImpl<Mapping42>(mem); 744 case 48: return IsShadowMemImpl<Mapping48>(mem); 745 } 746 DCHECK(0); 747 return false; 748 #elif defined(__powerpc64__) 749 switch (vmaSize) { 750 #if !SANITIZER_GO 751 case 44: return IsShadowMemImpl<Mapping44>(mem); 752 #endif 753 case 46: return IsShadowMemImpl<Mapping46>(mem); 754 case 47: return IsShadowMemImpl<Mapping47>(mem); 755 } 756 DCHECK(0); 757 return false; 758 #else 759 return IsShadowMemImpl<Mapping>(mem); 760 #endif 761 } 762 763 764 template<typename Mapping> 765 bool IsMetaMemImpl(uptr mem) { 766 return mem >= Mapping::kMetaShadowBeg && mem <= Mapping::kMetaShadowEnd; 767 } 768 769 ALWAYS_INLINE 770 bool IsMetaMem(uptr mem) { 771 #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO 772 switch (vmaSize) { 773 case 39: return IsMetaMemImpl<Mapping39>(mem); 774 case 42: return IsMetaMemImpl<Mapping42>(mem); 775 case 48: return IsMetaMemImpl<Mapping48>(mem); 776 } 777 DCHECK(0); 778 return false; 779 #elif defined(__powerpc64__) 780 switch (vmaSize) { 781 #if !SANITIZER_GO 782 case 44: return IsMetaMemImpl<Mapping44>(mem); 783 #endif 784 case 46: return IsMetaMemImpl<Mapping46>(mem); 785 case 47: return IsMetaMemImpl<Mapping47>(mem); 786 } 787 DCHECK(0); 788 return false; 789 #else 790 return IsMetaMemImpl<Mapping>(mem); 791 #endif 792 } 793 794 795 template<typename Mapping> 796 uptr MemToShadowImpl(uptr x) { 797 DCHECK(IsAppMem(x)); 798 #if !SANITIZER_GO 799 return (((x) & ~(Mapping::kAppMemMsk | (kShadowCell - 1))) 800 ^ Mapping::kAppMemXor) * kShadowCnt; 801 #else 802 # ifndef SANITIZER_WINDOWS 803 return ((x & ~(kShadowCell - 1)) * kShadowCnt) | Mapping::kShadowBeg; 804 # else 805 return ((x & ~(kShadowCell - 1)) * kShadowCnt) + Mapping::kShadowBeg; 806 # endif 807 #endif 808 } 809 810 ALWAYS_INLINE 811 uptr MemToShadow(uptr x) { 812 #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO 813 switch (vmaSize) { 814 case 39: return MemToShadowImpl<Mapping39>(x); 815 case 42: return MemToShadowImpl<Mapping42>(x); 816 case 48: return MemToShadowImpl<Mapping48>(x); 817 } 818 DCHECK(0); 819 return 0; 820 #elif defined(__powerpc64__) 821 switch (vmaSize) { 822 #if !SANITIZER_GO 823 case 44: return MemToShadowImpl<Mapping44>(x); 824 #endif 825 case 46: return MemToShadowImpl<Mapping46>(x); 826 case 47: return MemToShadowImpl<Mapping47>(x); 827 } 828 DCHECK(0); 829 return 0; 830 #else 831 return MemToShadowImpl<Mapping>(x); 832 #endif 833 } 834 835 836 template<typename Mapping> 837 u32 *MemToMetaImpl(uptr x) { 838 DCHECK(IsAppMem(x)); 839 #if !SANITIZER_GO 840 return (u32*)(((((x) & ~(Mapping::kAppMemMsk | (kMetaShadowCell - 1)))) / 841 kMetaShadowCell * kMetaShadowSize) | Mapping::kMetaShadowBeg); 842 #else 843 # ifndef SANITIZER_WINDOWS 844 return (u32*)(((x & ~(kMetaShadowCell - 1)) / \ 845 kMetaShadowCell * kMetaShadowSize) | Mapping::kMetaShadowBeg); 846 # else 847 return (u32*)(((x & ~(kMetaShadowCell - 1)) / \ 848 kMetaShadowCell * kMetaShadowSize) + Mapping::kMetaShadowBeg); 849 # endif 850 #endif 851 } 852 853 ALWAYS_INLINE 854 u32 *MemToMeta(uptr x) { 855 #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO 856 switch (vmaSize) { 857 case 39: return MemToMetaImpl<Mapping39>(x); 858 case 42: return MemToMetaImpl<Mapping42>(x); 859 case 48: return MemToMetaImpl<Mapping48>(x); 860 } 861 DCHECK(0); 862 return 0; 863 #elif defined(__powerpc64__) 864 switch (vmaSize) { 865 #if !SANITIZER_GO 866 case 44: return MemToMetaImpl<Mapping44>(x); 867 #endif 868 case 46: return MemToMetaImpl<Mapping46>(x); 869 case 47: return MemToMetaImpl<Mapping47>(x); 870 } 871 DCHECK(0); 872 return 0; 873 #else 874 return MemToMetaImpl<Mapping>(x); 875 #endif 876 } 877 878 879 template<typename Mapping> 880 uptr ShadowToMemImpl(uptr s) { 881 DCHECK(IsShadowMem(s)); 882 #if !SANITIZER_GO 883 // The shadow mapping is non-linear and we've lost some bits, so we don't have 884 // an easy way to restore the original app address. But the mapping is a 885 // bijection, so we try to restore the address as belonging to low/mid/high 886 // range consecutively and see if shadow->app->shadow mapping gives us the 887 // same address. 888 uptr p = (s / kShadowCnt) ^ Mapping::kAppMemXor; 889 if (p >= Mapping::kLoAppMemBeg && p < Mapping::kLoAppMemEnd && 890 MemToShadow(p) == s) 891 return p; 892 # ifdef TSAN_MID_APP_RANGE 893 p = ((s / kShadowCnt) ^ Mapping::kAppMemXor) + 894 (Mapping::kMidAppMemBeg & Mapping::kAppMemMsk); 895 if (p >= Mapping::kMidAppMemBeg && p < Mapping::kMidAppMemEnd && 896 MemToShadow(p) == s) 897 return p; 898 # endif 899 return ((s / kShadowCnt) ^ Mapping::kAppMemXor) | Mapping::kAppMemMsk; 900 #else // #if !SANITIZER_GO 901 # ifndef SANITIZER_WINDOWS 902 return (s & ~Mapping::kShadowBeg) / kShadowCnt; 903 # else 904 return (s - Mapping::kShadowBeg) / kShadowCnt; 905 # endif // SANITIZER_WINDOWS 906 #endif 907 } 908 909 ALWAYS_INLINE 910 uptr ShadowToMem(uptr s) { 911 #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO 912 switch (vmaSize) { 913 case 39: return ShadowToMemImpl<Mapping39>(s); 914 case 42: return ShadowToMemImpl<Mapping42>(s); 915 case 48: return ShadowToMemImpl<Mapping48>(s); 916 } 917 DCHECK(0); 918 return 0; 919 #elif defined(__powerpc64__) 920 switch (vmaSize) { 921 #if !SANITIZER_GO 922 case 44: return ShadowToMemImpl<Mapping44>(s); 923 #endif 924 case 46: return ShadowToMemImpl<Mapping46>(s); 925 case 47: return ShadowToMemImpl<Mapping47>(s); 926 } 927 DCHECK(0); 928 return 0; 929 #else 930 return ShadowToMemImpl<Mapping>(s); 931 #endif 932 } 933 934 935 936 // The additional page is to catch shadow stack overflow as paging fault. 937 // Windows wants 64K alignment for mmaps. 938 const uptr kTotalTraceSize = (kTraceSize * sizeof(Event) + sizeof(Trace) 939 + (64 << 10) + (64 << 10) - 1) & ~((64 << 10) - 1); 940 941 template<typename Mapping> 942 uptr GetThreadTraceImpl(int tid) { 943 uptr p = Mapping::kTraceMemBeg + (uptr)tid * kTotalTraceSize; 944 DCHECK_LT(p, Mapping::kTraceMemEnd); 945 return p; 946 } 947 948 ALWAYS_INLINE 949 uptr GetThreadTrace(int tid) { 950 #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO 951 switch (vmaSize) { 952 case 39: return GetThreadTraceImpl<Mapping39>(tid); 953 case 42: return GetThreadTraceImpl<Mapping42>(tid); 954 case 48: return GetThreadTraceImpl<Mapping48>(tid); 955 } 956 DCHECK(0); 957 return 0; 958 #elif defined(__powerpc64__) 959 switch (vmaSize) { 960 #if !SANITIZER_GO 961 case 44: return GetThreadTraceImpl<Mapping44>(tid); 962 #endif 963 case 46: return GetThreadTraceImpl<Mapping46>(tid); 964 case 47: return GetThreadTraceImpl<Mapping47>(tid); 965 } 966 DCHECK(0); 967 return 0; 968 #else 969 return GetThreadTraceImpl<Mapping>(tid); 970 #endif 971 } 972 973 974 template<typename Mapping> 975 uptr GetThreadTraceHeaderImpl(int tid) { 976 uptr p = Mapping::kTraceMemBeg + (uptr)tid * kTotalTraceSize 977 + kTraceSize * sizeof(Event); 978 DCHECK_LT(p, Mapping::kTraceMemEnd); 979 return p; 980 } 981 982 ALWAYS_INLINE 983 uptr GetThreadTraceHeader(int tid) { 984 #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO 985 switch (vmaSize) { 986 case 39: return GetThreadTraceHeaderImpl<Mapping39>(tid); 987 case 42: return GetThreadTraceHeaderImpl<Mapping42>(tid); 988 case 48: return GetThreadTraceHeaderImpl<Mapping48>(tid); 989 } 990 DCHECK(0); 991 return 0; 992 #elif defined(__powerpc64__) 993 switch (vmaSize) { 994 #if !SANITIZER_GO 995 case 44: return GetThreadTraceHeaderImpl<Mapping44>(tid); 996 #endif 997 case 46: return GetThreadTraceHeaderImpl<Mapping46>(tid); 998 case 47: return GetThreadTraceHeaderImpl<Mapping47>(tid); 999 } 1000 DCHECK(0); 1001 return 0; 1002 #else 1003 return GetThreadTraceHeaderImpl<Mapping>(tid); 1004 #endif 1005 } 1006 1007 void InitializePlatform(); 1008 void InitializePlatformEarly(); 1009 void CheckAndProtect(); 1010 void InitializeShadowMemoryPlatform(); 1011 void FlushShadowMemory(); 1012 void WriteMemoryProfile(char *buf, uptr buf_size, uptr nthread, uptr nlive); 1013 int ExtractResolvFDs(void *state, int *fds, int nfd); 1014 int ExtractRecvmsgFDs(void *msg, int *fds, int nfd); 1015 void ImitateTlsWrite(ThreadState *thr, uptr tls_addr, uptr tls_size); 1016 1017 int call_pthread_cancel_with_cleanup(int(*fn)(void *c, void *m, 1018 void *abstime), void *c, void *m, void *abstime, 1019 void(*cleanup)(void *arg), void *arg); 1020 1021 void DestroyThreadState(); 1022 1023 } // namespace __tsan 1024 1025 #endif // TSAN_PLATFORM_H 1026
Indexes created Sun Sep 21 14:09:52 GMT 2025