1//===-- tsan_platform.h -----------------------------------------*- C++ -*-===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8// 9// This file is a part of ThreadSanitizer (TSan), a race detector. 10// 11// Platform-specific code. 12//===----------------------------------------------------------------------===// 13 14#ifndef TSAN_PLATFORM_H 15#define TSAN_PLATFORM_H 16 17#if !defined(__LP64__) && !defined(_WIN64) 18# error "Only 64-bit is supported" 19#endif 20 21#include "sanitizer_common/sanitizer_common.h" 22#include "tsan_defs.h" 23 24namespace __tsan { 25 26enum { 27 // App memory is not mapped onto shadow memory range. 28 kBrokenMapping = 1 << 0, 29 // Mapping app memory and back does not produce the same address, 30 // this can lead to wrong addresses in reports and potentially 31 // other bad consequences. 32 kBrokenReverseMapping = 1 << 1, 33 // Mapping is non-linear for linear user range. 34 // This is bad and can lead to unpredictable memory corruptions, etc 35 // because range access functions assume linearity. 36 kBrokenLinearity = 1 << 2, 37 // Meta for an app region overlaps with the meta of another app region. 38 // This is determined by recomputing the individual meta regions for 39 // each app region. 40 // 41 // N.B. There is no "kBrokenReverseMetaMapping" constant because there 42 // is no MetaToMem function. However, note that (!kBrokenLinearity 43 // && !kBrokenAliasedMetas) implies that MemToMeta is invertible. 44 kBrokenAliasedMetas = 1 << 3, 45}; 46 47/* 48C/C++ on linux/x86_64 and freebsd/x86_64 490000 0000 1000 - 0080 0000 0000: main binary and/or MAP_32BIT mappings (512GB) 500040 0000 0000 - 0100 0000 0000: - 510100 0000 0000 - 1000 0000 0000: shadow 521000 0000 0000 - 3000 0000 0000: - 533000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects) 544000 0000 0000 - 5500 0000 0000: - 555500 0000 0000 - 5680 0000 0000: pie binaries without ASLR or on 4.1+ kernels 565680 0000 0000 - 7d00 0000 0000: - 577b00 0000 0000 - 7c00 0000 0000: heap 587c00 0000 0000 - 7e80 0000 0000: - 597e80 0000 0000 - 8000 0000 0000: modules and main thread stack 60 61C/C++ on netbsd/amd64 can reuse the same mapping: 62 * The address space starts from 0x1000 (option with 0x0) and ends with 63 0x7f7ffffff000. 64 * LoAppMem-kHeapMemEnd can be reused as it is. 65 * No VDSO support. 66 * No MidAppMem region. 67 * No additional HeapMem region. 68 * HiAppMem contains the stack, loader, shared libraries and heap. 69 * Stack on NetBSD/amd64 has prereserved 128MB. 70 * Heap grows downwards (top-down). 71 * ASLR must be disabled per-process or globally. 72*/ 73struct Mapping48AddressSpace { 74 static const uptr kMetaShadowBeg = 0x300000000000ull; 75 static const uptr kMetaShadowEnd = 0x340000000000ull; 76 static const uptr kShadowBeg = 0x010000000000ull; 77 static const uptr kShadowEnd = 0x100000000000ull; 78 static const uptr kHeapMemBeg = 0x7b0000000000ull; 79 static const uptr kHeapMemEnd = 0x7c0000000000ull; 80 static const uptr kLoAppMemBeg = 0x000000001000ull; 81 static const uptr kLoAppMemEnd = 0x008000000000ull; 82 static const uptr kMidAppMemBeg = 0x550000000000ull; 83 static const uptr kMidAppMemEnd = 0x568000000000ull; 84 static const uptr kHiAppMemBeg = 0x7e8000000000ull; 85 static const uptr kHiAppMemEnd = 0x800000000000ull; 86 static const uptr kShadowMsk = 0x780000000000ull; 87 static const uptr kShadowXor = 0x040000000000ull; 88 static const uptr kShadowAdd = 0x000000000000ull; 89 static const uptr kVdsoBeg = 0xf000000000000000ull; 90}; 91 92/* 93C/C++ on linux/mips64 (40-bit VMA) 940000 0000 00 - 0100 0000 00: - (4 GB) 950100 0000 00 - 0200 0000 00: main binary (4 GB) 960200 0000 00 - 1200 0000 00: - (64 GB) 971200 0000 00 - 2200 0000 00: shadow (64 GB) 982200 0000 00 - 4000 0000 00: - (120 GB) 994000 0000 00 - 5000 0000 00: metainfo (memory blocks and sync objects) (64 GB) 1005000 0000 00 - aa00 0000 00: - (360 GB) 101aa00 0000 00 - ab00 0000 00: main binary (PIE) (4 GB) 102ab00 0000 00 - fe00 0000 00: - (332 GB) 103fe00 0000 00 - ff00 0000 00: heap (4 GB) 104ff00 0000 00 - ff80 0000 00: - (2 GB) 105ff80 0000 00 - ffff ffff ff: modules and main thread stack (<2 GB) 106*/ 107struct MappingMips64_40 { 108 static const uptr kMetaShadowBeg = 0x4000000000ull; 109 static const uptr kMetaShadowEnd = 0x5000000000ull; 110 static const uptr kShadowBeg = 0x1200000000ull; 111 static const uptr kShadowEnd = 0x2200000000ull; 112 static const uptr kHeapMemBeg = 0xfe00000000ull; 113 static const uptr kHeapMemEnd = 0xff00000000ull; 114 static const uptr kLoAppMemBeg = 0x0100000000ull; 115 static const uptr kLoAppMemEnd = 0x0200000000ull; 116 static const uptr kMidAppMemBeg = 0xaa00000000ull; 117 static const uptr kMidAppMemEnd = 0xab00000000ull; 118 static const uptr kHiAppMemBeg = 0xff80000000ull; 119 static const uptr kHiAppMemEnd = 0xffffffffffull; 120 static const uptr kShadowMsk = 0xf800000000ull; 121 static const uptr kShadowXor = 0x0800000000ull; 122 static const uptr kShadowAdd = 0x0000000000ull; 123 static const uptr kVdsoBeg = 0xfffff00000ull; 124}; 125 126/* 127C/C++ on Darwin/iOS/ARM64 (36-bit VMA, 64 GB VM) 1280000 0000 00 - 0100 0000 00: - (4 GB) 1290100 0000 00 - 0200 0000 00: main binary, modules, thread stacks (4 GB) 1300200 0000 00 - 0300 0000 00: heap (4 GB) 1310300 0000 00 - 0400 0000 00: - (4 GB) 1320400 0000 00 - 0800 0000 00: shadow memory (16 GB) 1330800 0000 00 - 0d00 0000 00: - (20 GB) 1340d00 0000 00 - 0e00 0000 00: metainfo (4 GB) 1350e00 0000 00 - 1000 0000 00: - 136*/ 137struct MappingAppleAarch64 { 138 static const uptr kLoAppMemBeg = 0x0100000000ull; 139 static const uptr kLoAppMemEnd = 0x0200000000ull; 140 static const uptr kHeapMemBeg = 0x0200000000ull; 141 static const uptr kHeapMemEnd = 0x0300000000ull; 142 static const uptr kShadowBeg = 0x0400000000ull; 143 static const uptr kShadowEnd = 0x0800000000ull; 144 static const uptr kMetaShadowBeg = 0x0d00000000ull; 145 static const uptr kMetaShadowEnd = 0x0e00000000ull; 146 static const uptr kHiAppMemBeg = 0x0fc0000000ull; 147 static const uptr kHiAppMemEnd = 0x0fc0000000ull; 148 static const uptr kShadowMsk = 0x0ull; 149 static const uptr kShadowXor = 0x0ull; 150 static const uptr kShadowAdd = 0x0200000000ull; 151 static const uptr kVdsoBeg = 0x7000000000000000ull; 152 static const uptr kMidAppMemBeg = 0; 153 static const uptr kMidAppMemEnd = 0; 154}; 155 156/* 157C/C++ on linux/aarch64 (39-bit VMA) 1580000 0010 00 - 0500 0000 00: main binary (20 GB) 1590100 0000 00 - 2000 0000 00: - 1602000 0000 00 - 4000 0000 00: shadow memory (128 GB) 1614000 0000 00 - 4800 0000 00: metainfo (32 GB) 1624800 0000 00 - 5500 0000 00: - 1635500 0000 00 - 5a00 0000 00: main binary (PIE) (20 GB) 1645600 0000 00 - 7c00 0000 00: - 1657a00 0000 00 - 7d00 0000 00: heap (12 GB) 1667d00 0000 00 - 7fff ffff ff: modules and main thread stack (12 GB) 167*/ 168struct MappingAarch64_39 { 169 static const uptr kLoAppMemBeg = 0x0000001000ull; 170 static const uptr kLoAppMemEnd = 0x0500000000ull; 171 static const uptr kShadowBeg = 0x2000000000ull; 172 static const uptr kShadowEnd = 0x4000000000ull; 173 static const uptr kMetaShadowBeg = 0x4000000000ull; 174 static const uptr kMetaShadowEnd = 0x4800000000ull; 175 static const uptr kMidAppMemBeg = 0x5500000000ull; 176 static const uptr kMidAppMemEnd = 0x5a00000000ull; 177 static const uptr kHeapMemBeg = 0x7a00000000ull; 178 static const uptr kHeapMemEnd = 0x7d00000000ull; 179 static const uptr kHiAppMemBeg = 0x7d00000000ull; 180 static const uptr kHiAppMemEnd = 0x7fffffffffull; 181 static const uptr kShadowMsk = 0x7000000000ull; 182 static const uptr kShadowXor = 0x1000000000ull; 183 static const uptr kShadowAdd = 0x0000000000ull; 184 static const uptr kVdsoBeg = 0x7f00000000ull; 185}; 186 187/* 188C/C++ on linux/aarch64 (42-bit VMA) 18900000 0010 00 - 02000 0000 00: main binary (128 GB) 19002000 0000 00 - 08000 0000 00: - 19110000 0000 00 - 20000 0000 00: shadow memory (1024 GB) 19220000 0000 00 - 24000 0000 00: metainfo (256 GB) 19324000 0000 00 - 2aa00 0000 00: - 1942aa00 0000 00 - 2c000 0000 00: main binary (PIE) (88 GB) 1952c000 0000 00 - 3c000 0000 00: - 1963c000 0000 00 - 3f000 0000 00: heap (192 GB) 1973f000 0000 00 - 3ffff ffff ff: modules and main thread stack (64 GB) 198*/ 199struct MappingAarch64_42 { 200 static const uptr kLoAppMemBeg = 0x00000001000ull; 201 static const uptr kLoAppMemEnd = 0x02000000000ull; 202 static const uptr kShadowBeg = 0x10000000000ull; 203 static const uptr kShadowEnd = 0x20000000000ull; 204 static const uptr kMetaShadowBeg = 0x20000000000ull; 205 static const uptr kMetaShadowEnd = 0x24000000000ull; 206 static const uptr kMidAppMemBeg = 0x2aa00000000ull; 207 static const uptr kMidAppMemEnd = 0x2c000000000ull; 208 static const uptr kHeapMemBeg = 0x3c000000000ull; 209 static const uptr kHeapMemEnd = 0x3f000000000ull; 210 static const uptr kHiAppMemBeg = 0x3f000000000ull; 211 static const uptr kHiAppMemEnd = 0x3ffffffffffull; 212 static const uptr kShadowMsk = 0x38000000000ull; 213 static const uptr kShadowXor = 0x08000000000ull; 214 static const uptr kShadowAdd = 0x00000000000ull; 215 static const uptr kVdsoBeg = 0x37f00000000ull; 216}; 217 218/* 219C/C++ on linux/aarch64 (48-bit VMA) 2200000 0000 1000 - 0a00 0000 0000: main binary (10240 GB) 2210a00 0000 1000 - 1554 0000 0000: - 2221554 0000 1000 - 5400 0000 0000: shadow memory (64176 GB) 2235400 0000 1000 - 8000 0000 0000: - 2248000 0000 1000 - 0a00 0000 0000: metainfo (32768 GB) 225a000 0000 1000 - aaaa 0000 0000: - 226aaaa 0000 1000 - ac00 0000 0000: main binary (PIE) (1368 GB) 227ac00 0000 1000 - fc00 0000 0000: - 228fc00 0000 1000 - ffff ffff ffff: modules and main thread stack (4096 GB) 229 230N.B. the shadow memory region has a strange start address, because it 231contains the shadows for the mid, high and low app regions (in this 232unusual order). 233*/ 234struct MappingAarch64_48 { 235 static const uptr kLoAppMemBeg = 0x0000000001000ull; 236 static const uptr kLoAppMemEnd = 0x00a0000000000ull; 237 static const uptr kShadowBeg = 0x0155400000000ull; 238 static const uptr kShadowEnd = 0x0540000000000ull; 239 static const uptr kMetaShadowBeg = 0x0800000000000ull; 240 static const uptr kMetaShadowEnd = 0x0a00000000000ull; 241 static const uptr kMidAppMemBeg = 0x0aaaa00000000ull; 242 static const uptr kMidAppMemEnd = 0x0ac0000000000ull; 243 static const uptr kHiAppMemBeg = 0x0fc0000000000ull; 244 static const uptr kHiAppMemEnd = 0x1000000000000ull; 245 static const uptr kHeapMemBeg = 0x0fc0000000000ull; 246 static const uptr kHeapMemEnd = 0x0fc0000000000ull; 247 static const uptr kShadowMsk = 0x0c00000000000ull; 248 static const uptr kShadowXor = 0x0200000000000ull; 249 static const uptr kShadowAdd = 0x0000000000000ull; 250 static const uptr kVdsoBeg = 0xffff000000000ull; 251}; 252 253/* C/C++ on linux/loongarch64 (47-bit VMA) 2540000 0000 4000 - 0080 0000 0000: main binary 2550080 0000 0000 - 0100 0000 0000: - 2560100 0000 0000 - 1000 0000 0000: shadow memory 2571000 0000 0000 - 3000 0000 0000: - 2583000 0000 0000 - 3400 0000 0000: metainfo 2593400 0000 0000 - 5555 0000 0000: - 2605555 0000 0000 - 5556 0000 0000: main binary (PIE) 2615556 0000 0000 - 7ffe 0000 0000: - 2627ffe 0000 0000 - 7fff 0000 0000: heap 2637fff 0000 0000 - 7fff 8000 0000: - 2647fff 8000 0000 - 8000 0000 0000: modules and main thread stack 265*/ 266struct MappingLoongArch64_47 { 267 static const uptr kMetaShadowBeg = 0x300000000000ull; 268 static const uptr kMetaShadowEnd = 0x340000000000ull; 269 static const uptr kShadowBeg = 0x010000000000ull; 270 static const uptr kShadowEnd = 0x100000000000ull; 271 static const uptr kHeapMemBeg = 0x7ffe00000000ull; 272 static const uptr kHeapMemEnd = 0x7fff00000000ull; 273 static const uptr kLoAppMemBeg = 0x000000004000ull; 274 static const uptr kLoAppMemEnd = 0x008000000000ull; 275 static const uptr kMidAppMemBeg = 0x555500000000ull; 276 static const uptr kMidAppMemEnd = 0x555600000000ull; 277 static const uptr kHiAppMemBeg = 0x7fff80000000ull; 278 static const uptr kHiAppMemEnd = 0x800000000000ull; 279 static const uptr kShadowMsk = 0x780000000000ull; 280 static const uptr kShadowXor = 0x040000000000ull; 281 static const uptr kShadowAdd = 0x000000000000ull; 282 static const uptr kVdsoBeg = 0x7fffffffc000ull; 283}; 284 285/* 286C/C++ on linux/powerpc64 (44-bit VMA) 2870000 0000 0100 - 0001 0000 0000: main binary 2880001 0000 0000 - 0001 0000 0000: - 2890001 0000 0000 - 0b00 0000 0000: shadow 2900b00 0000 0000 - 0b00 0000 0000: - 2910b00 0000 0000 - 0d00 0000 0000: metainfo (memory blocks and sync objects) 2920d00 0000 0000 - 0f00 0000 0000: - 2930f00 0000 0000 - 0f50 0000 0000: heap 2940f50 0000 0000 - 0f60 0000 0000: - 2950f60 0000 0000 - 1000 0000 0000: modules and main thread stack 296*/ 297struct MappingPPC64_44 { 298 static const uptr kBroken = kBrokenMapping | kBrokenReverseMapping | 299 kBrokenLinearity | kBrokenAliasedMetas; 300 static const uptr kMetaShadowBeg = 0x0b0000000000ull; 301 static const uptr kMetaShadowEnd = 0x0d0000000000ull; 302 static const uptr kShadowBeg = 0x000100000000ull; 303 static const uptr kShadowEnd = 0x0b0000000000ull; 304 static const uptr kLoAppMemBeg = 0x000000000100ull; 305 static const uptr kLoAppMemEnd = 0x000100000000ull; 306 static const uptr kHeapMemBeg = 0x0f0000000000ull; 307 static const uptr kHeapMemEnd = 0x0f5000000000ull; 308 static const uptr kHiAppMemBeg = 0x0f6000000000ull; 309 static const uptr kHiAppMemEnd = 0x100000000000ull; // 44 bits 310 static const uptr kShadowMsk = 0x0f0000000000ull; 311 static const uptr kShadowXor = 0x002100000000ull; 312 static const uptr kShadowAdd = 0x000000000000ull; 313 static const uptr kVdsoBeg = 0x3c0000000000000ull; 314 static const uptr kMidAppMemBeg = 0; 315 static const uptr kMidAppMemEnd = 0; 316}; 317 318/* 319C/C++ on linux/powerpc64 (46-bit VMA) 3200000 0000 1000 - 0100 0000 0000: main binary 3210100 0000 0000 - 0200 0000 0000: - 3220100 0000 0000 - 0800 0000 0000: shadow 3230800 0000 0000 - 1000 0000 0000: - 3241000 0000 0000 - 1200 0000 0000: metainfo (memory blocks and sync objects) 3251200 0000 0000 - 3d00 0000 0000: - 3263d00 0000 0000 - 3e00 0000 0000: heap 3273e00 0000 0000 - 3e80 0000 0000: - 3283e80 0000 0000 - 4000 0000 0000: modules and main thread stack 329*/ 330struct MappingPPC64_46 { 331 static const uptr kMetaShadowBeg = 0x100000000000ull; 332 static const uptr kMetaShadowEnd = 0x120000000000ull; 333 static const uptr kShadowBeg = 0x010000000000ull; 334 static const uptr kShadowEnd = 0x080000000000ull; 335 static const uptr kHeapMemBeg = 0x3d0000000000ull; 336 static const uptr kHeapMemEnd = 0x3e0000000000ull; 337 static const uptr kLoAppMemBeg = 0x000000001000ull; 338 static const uptr kLoAppMemEnd = 0x010000000000ull; 339 static const uptr kHiAppMemBeg = 0x3e8000000000ull; 340 static const uptr kHiAppMemEnd = 0x400000000000ull; // 46 bits 341 static const uptr kShadowMsk = 0x3c0000000000ull; 342 static const uptr kShadowXor = 0x020000000000ull; 343 static const uptr kShadowAdd = 0x000000000000ull; 344 static const uptr kVdsoBeg = 0x7800000000000000ull; 345 static const uptr kMidAppMemBeg = 0; 346 static const uptr kMidAppMemEnd = 0; 347}; 348 349/* 350C/C++ on linux/powerpc64 (47-bit VMA) 3510000 0000 1000 - 0100 0000 0000: main binary 3520100 0000 0000 - 0200 0000 0000: - 3530100 0000 0000 - 0800 0000 0000: shadow 3540800 0000 0000 - 1000 0000 0000: - 3551000 0000 0000 - 1200 0000 0000: metainfo (memory blocks and sync objects) 3561200 0000 0000 - 7d00 0000 0000: - 3577d00 0000 0000 - 7e00 0000 0000: heap 3587e00 0000 0000 - 7e80 0000 0000: - 3597e80 0000 0000 - 8000 0000 0000: modules and main thread stack 360*/ 361struct MappingPPC64_47 { 362 static const uptr kMetaShadowBeg = 0x100000000000ull; 363 static const uptr kMetaShadowEnd = 0x120000000000ull; 364 static const uptr kShadowBeg = 0x010000000000ull; 365 static const uptr kShadowEnd = 0x080000000000ull; 366 static const uptr kHeapMemBeg = 0x7d0000000000ull; 367 static const uptr kHeapMemEnd = 0x7e0000000000ull; 368 static const uptr kLoAppMemBeg = 0x000000001000ull; 369 static const uptr kLoAppMemEnd = 0x010000000000ull; 370 static const uptr kHiAppMemBeg = 0x7e8000000000ull; 371 static const uptr kHiAppMemEnd = 0x800000000000ull; // 47 bits 372 static const uptr kShadowMsk = 0x7c0000000000ull; 373 static const uptr kShadowXor = 0x020000000000ull; 374 static const uptr kShadowAdd = 0x000000000000ull; 375 static const uptr kVdsoBeg = 0x7800000000000000ull; 376 static const uptr kMidAppMemBeg = 0; 377 static const uptr kMidAppMemEnd = 0; 378}; 379 380/* 381C/C++ on linux/s390x 382While the kernel provides a 64-bit address space, we have to restrict ourselves 383to 48 bits due to how e.g. SyncVar::GetId() works. 3840000 0000 1000 - 0e00 0000 0000: binary, modules, stacks - 14 TiB 3850e00 0000 0000 - 2000 0000 0000: - 3862000 0000 0000 - 4000 0000 0000: shadow - 32TiB (2 * app) 3874000 0000 0000 - 9000 0000 0000: - 3889000 0000 0000 - 9800 0000 0000: metainfo - 8TiB (0.5 * app) 3899800 0000 0000 - be00 0000 0000: - 390be00 0000 0000 - c000 0000 0000: heap - 2TiB (max supported by the allocator) 391*/ 392struct MappingS390x { 393 static const uptr kMetaShadowBeg = 0x900000000000ull; 394 static const uptr kMetaShadowEnd = 0x980000000000ull; 395 static const uptr kShadowBeg = 0x200000000000ull; 396 static const uptr kShadowEnd = 0x400000000000ull; 397 static const uptr kHeapMemBeg = 0xbe0000000000ull; 398 static const uptr kHeapMemEnd = 0xc00000000000ull; 399 static const uptr kLoAppMemBeg = 0x000000001000ull; 400 static const uptr kLoAppMemEnd = 0x0e0000000000ull; 401 static const uptr kHiAppMemBeg = 0xc00000004000ull; 402 static const uptr kHiAppMemEnd = 0xc00000004000ull; 403 static const uptr kShadowMsk = 0xb00000000000ull; 404 static const uptr kShadowXor = 0x100000000000ull; 405 static const uptr kShadowAdd = 0x000000000000ull; 406 static const uptr kVdsoBeg = 0xfffffffff000ull; 407 static const uptr kMidAppMemBeg = 0; 408 static const uptr kMidAppMemEnd = 0; 409}; 410 411/* Go on linux, darwin and freebsd on x86_64 4120000 0000 1000 - 0000 1000 0000: executable 4130000 1000 0000 - 00c0 0000 0000: - 41400c0 0000 0000 - 00e0 0000 0000: heap 41500e0 0000 0000 - 2000 0000 0000: - 4162000 0000 0000 - 21c0 0000 0000: shadow 41721c0 0000 0000 - 3000 0000 0000: - 4183000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects) 4194000 0000 0000 - 8000 0000 0000: - 420*/ 421 422struct MappingGo48 { 423 static const uptr kMetaShadowBeg = 0x300000000000ull; 424 static const uptr kMetaShadowEnd = 0x400000000000ull; 425 static const uptr kShadowBeg = 0x200000000000ull; 426 static const uptr kShadowEnd = 0x21c000000000ull; 427 static const uptr kLoAppMemBeg = 0x000000001000ull; 428 static const uptr kLoAppMemEnd = 0x00e000000000ull; 429 static const uptr kMidAppMemBeg = 0; 430 static const uptr kMidAppMemEnd = 0; 431 static const uptr kHiAppMemBeg = 0; 432 static const uptr kHiAppMemEnd = 0; 433 static const uptr kHeapMemBeg = 0; 434 static const uptr kHeapMemEnd = 0; 435 static const uptr kVdsoBeg = 0; 436 static const uptr kShadowMsk = 0; 437 static const uptr kShadowXor = 0; 438 static const uptr kShadowAdd = 0x200000000000ull; 439}; 440 441/* Go on windows 4420000 0000 1000 - 0000 1000 0000: executable 4430000 1000 0000 - 00f8 0000 0000: - 44400c0 0000 0000 - 00e0 0000 0000: heap 44500e0 0000 0000 - 0100 0000 0000: - 4460100 0000 0000 - 0300 0000 0000: shadow 4470300 0000 0000 - 0700 0000 0000: - 4480700 0000 0000 - 0770 0000 0000: metainfo (memory blocks and sync objects) 44907d0 0000 0000 - 8000 0000 0000: - 450PIE binaries currently not supported, but it should be theoretically possible. 451*/ 452 453struct MappingGoWindows { 454 static const uptr kMetaShadowBeg = 0x070000000000ull; 455 static const uptr kMetaShadowEnd = 0x077000000000ull; 456 static const uptr kShadowBeg = 0x010000000000ull; 457 static const uptr kShadowEnd = 0x030000000000ull; 458 static const uptr kLoAppMemBeg = 0x000000001000ull; 459 static const uptr kLoAppMemEnd = 0x00e000000000ull; 460 static const uptr kMidAppMemBeg = 0; 461 static const uptr kMidAppMemEnd = 0; 462 static const uptr kHiAppMemBeg = 0; 463 static const uptr kHiAppMemEnd = 0; 464 static const uptr kHeapMemBeg = 0; 465 static const uptr kHeapMemEnd = 0; 466 static const uptr kVdsoBeg = 0; 467 static const uptr kShadowMsk = 0; 468 static const uptr kShadowXor = 0; 469 static const uptr kShadowAdd = 0x010000000000ull; 470}; 471 472/* Go on linux/powerpc64 (46-bit VMA) 4730000 0000 1000 - 0000 1000 0000: executable 4740000 1000 0000 - 00c0 0000 0000: - 47500c0 0000 0000 - 00e0 0000 0000: heap 47600e0 0000 0000 - 2000 0000 0000: - 4772000 0000 0000 - 21c0 0000 0000: shadow 47821c0 0000 0000 - 2400 0000 0000: - 4792400 0000 0000 - 2470 0000 0000: metainfo (memory blocks and sync objects) 4802470 0000 0000 - 4000 0000 0000: - 481*/ 482 483struct MappingGoPPC64_46 { 484 static const uptr kMetaShadowBeg = 0x240000000000ull; 485 static const uptr kMetaShadowEnd = 0x247000000000ull; 486 static const uptr kShadowBeg = 0x200000000000ull; 487 static const uptr kShadowEnd = 0x21c000000000ull; 488 static const uptr kLoAppMemBeg = 0x000000001000ull; 489 static const uptr kLoAppMemEnd = 0x00e000000000ull; 490 static const uptr kMidAppMemBeg = 0; 491 static const uptr kMidAppMemEnd = 0; 492 static const uptr kHiAppMemBeg = 0; 493 static const uptr kHiAppMemEnd = 0; 494 static const uptr kHeapMemBeg = 0; 495 static const uptr kHeapMemEnd = 0; 496 static const uptr kVdsoBeg = 0; 497 static const uptr kShadowMsk = 0; 498 static const uptr kShadowXor = 0; 499 static const uptr kShadowAdd = 0x200000000000ull; 500}; 501 502/* Go on linux/powerpc64 (47-bit VMA) 5030000 0000 1000 - 0000 1000 0000: executable 5040000 1000 0000 - 00c0 0000 0000: - 50500c0 0000 0000 - 00e0 0000 0000: heap 50600e0 0000 0000 - 2000 0000 0000: - 5072000 0000 0000 - 2800 0000 0000: shadow 5082800 0000 0000 - 3000 0000 0000: - 5093000 0000 0000 - 3200 0000 0000: metainfo (memory blocks and sync objects) 5103200 0000 0000 - 8000 0000 0000: - 511*/ 512 513struct MappingGoPPC64_47 { 514 static const uptr kMetaShadowBeg = 0x300000000000ull; 515 static const uptr kMetaShadowEnd = 0x320000000000ull; 516 static const uptr kShadowBeg = 0x200000000000ull; 517 static const uptr kShadowEnd = 0x280000000000ull; 518 static const uptr kLoAppMemBeg = 0x000000001000ull; 519 static const uptr kLoAppMemEnd = 0x00e000000000ull; 520 static const uptr kMidAppMemBeg = 0; 521 static const uptr kMidAppMemEnd = 0; 522 static const uptr kHiAppMemBeg = 0; 523 static const uptr kHiAppMemEnd = 0; 524 static const uptr kHeapMemBeg = 0; 525 static const uptr kHeapMemEnd = 0; 526 static const uptr kVdsoBeg = 0; 527 static const uptr kShadowMsk = 0; 528 static const uptr kShadowXor = 0; 529 static const uptr kShadowAdd = 0x200000000000ull; 530}; 531 532/* Go on linux/aarch64 (48-bit VMA) and darwin/aarch64 (47-bit VMA) 5330000 0000 1000 - 0000 1000 0000: executable 5340000 1000 0000 - 00c0 0000 0000: - 53500c0 0000 0000 - 00e0 0000 0000: heap 53600e0 0000 0000 - 2000 0000 0000: - 5372000 0000 0000 - 2800 0000 0000: shadow 5382800 0000 0000 - 3000 0000 0000: - 5393000 0000 0000 - 3200 0000 0000: metainfo (memory blocks and sync objects) 5403200 0000 0000 - 8000 0000 0000: - 541*/ 542struct MappingGoAarch64 { 543 static const uptr kMetaShadowBeg = 0x300000000000ull; 544 static const uptr kMetaShadowEnd = 0x320000000000ull; 545 static const uptr kShadowBeg = 0x200000000000ull; 546 static const uptr kShadowEnd = 0x280000000000ull; 547 static const uptr kLoAppMemBeg = 0x000000001000ull; 548 static const uptr kLoAppMemEnd = 0x00e000000000ull; 549 static const uptr kMidAppMemBeg = 0; 550 static const uptr kMidAppMemEnd = 0; 551 static const uptr kHiAppMemBeg = 0; 552 static const uptr kHiAppMemEnd = 0; 553 static const uptr kHeapMemBeg = 0; 554 static const uptr kHeapMemEnd = 0; 555 static const uptr kVdsoBeg = 0; 556 static const uptr kShadowMsk = 0; 557 static const uptr kShadowXor = 0; 558 static const uptr kShadowAdd = 0x200000000000ull; 559}; 560 561/* 562Go on linux/mips64 (47-bit VMA) 5630000 0000 1000 - 0000 1000 0000: executable 5640000 1000 0000 - 00c0 0000 0000: - 56500c0 0000 0000 - 00e0 0000 0000: heap 56600e0 0000 0000 - 2000 0000 0000: - 5672000 0000 0000 - 2800 0000 0000: shadow 5682800 0000 0000 - 3000 0000 0000: - 5693000 0000 0000 - 3200 0000 0000: metainfo (memory blocks and sync objects) 5703200 0000 0000 - 8000 0000 0000: - 571*/ 572struct MappingGoMips64_47 { 573 static const uptr kMetaShadowBeg = 0x300000000000ull; 574 static const uptr kMetaShadowEnd = 0x320000000000ull; 575 static const uptr kShadowBeg = 0x200000000000ull; 576 static const uptr kShadowEnd = 0x280000000000ull; 577 static const uptr kLoAppMemBeg = 0x000000001000ull; 578 static const uptr kLoAppMemEnd = 0x00e000000000ull; 579 static const uptr kMidAppMemBeg = 0; 580 static const uptr kMidAppMemEnd = 0; 581 static const uptr kHiAppMemBeg = 0; 582 static const uptr kHiAppMemEnd = 0; 583 static const uptr kHeapMemBeg = 0; 584 static const uptr kHeapMemEnd = 0; 585 static const uptr kVdsoBeg = 0; 586 static const uptr kShadowMsk = 0; 587 static const uptr kShadowXor = 0; 588 static const uptr kShadowAdd = 0x200000000000ull; 589}; 590 591/* 592Go on linux/s390x 5930000 0000 1000 - 1000 0000 0000: executable and heap - 16 TiB 5941000 0000 0000 - 4000 0000 0000: - 5954000 0000 0000 - 6000 0000 0000: shadow - 64TiB (4 * app) 5966000 0000 0000 - 9000 0000 0000: - 5979000 0000 0000 - 9800 0000 0000: metainfo - 8TiB (0.5 * app) 598*/ 599struct MappingGoS390x { 600 static const uptr kMetaShadowBeg = 0x900000000000ull; 601 static const uptr kMetaShadowEnd = 0x980000000000ull; 602 static const uptr kShadowBeg = 0x400000000000ull; 603 static const uptr kShadowEnd = 0x600000000000ull; 604 static const uptr kLoAppMemBeg = 0x000000001000ull; 605 static const uptr kLoAppMemEnd = 0x100000000000ull; 606 static const uptr kMidAppMemBeg = 0; 607 static const uptr kMidAppMemEnd = 0; 608 static const uptr kHiAppMemBeg = 0; 609 static const uptr kHiAppMemEnd = 0; 610 static const uptr kHeapMemBeg = 0; 611 static const uptr kHeapMemEnd = 0; 612 static const uptr kVdsoBeg = 0; 613 static const uptr kShadowMsk = 0; 614 static const uptr kShadowXor = 0; 615 static const uptr kShadowAdd = 0x400000000000ull; 616}; 617 618extern uptr vmaSize; 619 620template <typename Func, typename Arg> 621ALWAYS_INLINE auto SelectMapping(Arg arg) { 622#if SANITIZER_GO 623# if defined(__powerpc64__) 624 switch (vmaSize) { 625 case 46: 626 return Func::template Apply<MappingGoPPC64_46>(arg); 627 case 47: 628 return Func::template Apply<MappingGoPPC64_47>(arg); 629 } 630# elif defined(__mips64) 631 return Func::template Apply<MappingGoMips64_47>(arg); 632# elif defined(__s390x__) 633 return Func::template Apply<MappingGoS390x>(arg); 634# elif defined(__aarch64__) 635 return Func::template Apply<MappingGoAarch64>(arg); 636# elif SANITIZER_WINDOWS 637 return Func::template Apply<MappingGoWindows>(arg); 638# else 639 return Func::template Apply<MappingGo48>(arg); 640# endif 641#else // SANITIZER_GO 642# if SANITIZER_IOS && !SANITIZER_IOSSIM 643 return Func::template Apply<MappingAppleAarch64>(arg); 644# elif defined(__x86_64__) || SANITIZER_APPLE 645 return Func::template Apply<Mapping48AddressSpace>(arg); 646# elif defined(__aarch64__) 647 switch (vmaSize) { 648 case 39: 649 return Func::template Apply<MappingAarch64_39>(arg); 650 case 42: 651 return Func::template Apply<MappingAarch64_42>(arg); 652 case 48: 653 return Func::template Apply<MappingAarch64_48>(arg); 654 } 655# elif SANITIZER_LOONGARCH64 656 return Func::template Apply<MappingLoongArch64_47>(arg); 657# elif defined(__powerpc64__) 658 switch (vmaSize) { 659 case 44: 660 return Func::template Apply<MappingPPC64_44>(arg); 661 case 46: 662 return Func::template Apply<MappingPPC64_46>(arg); 663 case 47: 664 return Func::template Apply<MappingPPC64_47>(arg); 665 } 666# elif defined(__mips64) 667 return Func::template Apply<MappingMips64_40>(arg); 668# elif defined(__s390x__) 669 return Func::template Apply<MappingS390x>(arg); 670# else 671# error "unsupported platform" 672# endif 673#endif 674 Die(); 675} 676 677template <typename Func> 678void ForEachMapping() { 679 Func::template Apply<Mapping48AddressSpace>(); 680 Func::template Apply<MappingMips64_40>(); 681 Func::template Apply<MappingAppleAarch64>(); 682 Func::template Apply<MappingAarch64_39>(); 683 Func::template Apply<MappingAarch64_42>(); 684 Func::template Apply<MappingAarch64_48>(); 685 Func::template Apply<MappingLoongArch64_47>(); 686 Func::template Apply<MappingPPC64_44>(); 687 Func::template Apply<MappingPPC64_46>(); 688 Func::template Apply<MappingPPC64_47>(); 689 Func::template Apply<MappingS390x>(); 690 Func::template Apply<MappingGo48>(); 691 Func::template Apply<MappingGoWindows>(); 692 Func::template Apply<MappingGoPPC64_46>(); 693 Func::template Apply<MappingGoPPC64_47>(); 694 Func::template Apply<MappingGoAarch64>(); 695 Func::template Apply<MappingGoMips64_47>(); 696 Func::template Apply<MappingGoS390x>(); 697} 698 699enum MappingType { 700 kLoAppMemBeg, 701 kLoAppMemEnd, 702 kHiAppMemBeg, 703 kHiAppMemEnd, 704 kMidAppMemBeg, 705 kMidAppMemEnd, 706 kHeapMemBeg, 707 kHeapMemEnd, 708 kShadowBeg, 709 kShadowEnd, 710 kMetaShadowBeg, 711 kMetaShadowEnd, 712 kVdsoBeg, 713}; 714 715struct MappingField { 716 template <typename Mapping> 717 static uptr Apply(MappingType type) { 718 switch (type) { 719 case kLoAppMemBeg: 720 return Mapping::kLoAppMemBeg; 721 case kLoAppMemEnd: 722 return Mapping::kLoAppMemEnd; 723 case kMidAppMemBeg: 724 return Mapping::kMidAppMemBeg; 725 case kMidAppMemEnd: 726 return Mapping::kMidAppMemEnd; 727 case kHiAppMemBeg: 728 return Mapping::kHiAppMemBeg; 729 case kHiAppMemEnd: 730 return Mapping::kHiAppMemEnd; 731 case kHeapMemBeg: 732 return Mapping::kHeapMemBeg; 733 case kHeapMemEnd: 734 return Mapping::kHeapMemEnd; 735 case kVdsoBeg: 736 return Mapping::kVdsoBeg; 737 case kShadowBeg: 738 return Mapping::kShadowBeg; 739 case kShadowEnd: 740 return Mapping::kShadowEnd; 741 case kMetaShadowBeg: 742 return Mapping::kMetaShadowBeg; 743 case kMetaShadowEnd: 744 return Mapping::kMetaShadowEnd; 745 } 746 Die(); 747 } 748}; 749 750ALWAYS_INLINE 751uptr LoAppMemBeg(void) { return SelectMapping<MappingField>(kLoAppMemBeg); } 752ALWAYS_INLINE 753uptr LoAppMemEnd(void) { return SelectMapping<MappingField>(kLoAppMemEnd); } 754 755ALWAYS_INLINE 756uptr MidAppMemBeg(void) { return SelectMapping<MappingField>(kMidAppMemBeg); } 757ALWAYS_INLINE 758uptr MidAppMemEnd(void) { return SelectMapping<MappingField>(kMidAppMemEnd); } 759 760ALWAYS_INLINE 761uptr HeapMemBeg(void) { return SelectMapping<MappingField>(kHeapMemBeg); } 762ALWAYS_INLINE 763uptr HeapMemEnd(void) { return SelectMapping<MappingField>(kHeapMemEnd); } 764 765ALWAYS_INLINE 766uptr HiAppMemBeg(void) { return SelectMapping<MappingField>(kHiAppMemBeg); } 767ALWAYS_INLINE 768uptr HiAppMemEnd(void) { return SelectMapping<MappingField>(kHiAppMemEnd); } 769 770ALWAYS_INLINE 771uptr VdsoBeg(void) { return SelectMapping<MappingField>(kVdsoBeg); } 772 773ALWAYS_INLINE 774uptr ShadowBeg(void) { return SelectMapping<MappingField>(kShadowBeg); } 775ALWAYS_INLINE 776uptr ShadowEnd(void) { return SelectMapping<MappingField>(kShadowEnd); } 777 778ALWAYS_INLINE 779uptr MetaShadowBeg(void) { return SelectMapping<MappingField>(kMetaShadowBeg); } 780ALWAYS_INLINE 781uptr MetaShadowEnd(void) { return SelectMapping<MappingField>(kMetaShadowEnd); } 782 783struct IsAppMemImpl { 784 template <typename Mapping> 785 static bool Apply(uptr mem) { 786 return (mem >= Mapping::kHeapMemBeg && mem < Mapping::kHeapMemEnd) || 787 (mem >= Mapping::kMidAppMemBeg && mem < Mapping::kMidAppMemEnd) || 788 (mem >= Mapping::kLoAppMemBeg && mem < Mapping::kLoAppMemEnd) || 789 (mem >= Mapping::kHiAppMemBeg && mem < Mapping::kHiAppMemEnd); 790 } 791}; 792 793ALWAYS_INLINE 794bool IsAppMem(uptr mem) { return SelectMapping<IsAppMemImpl>(mem); } 795 796struct IsShadowMemImpl { 797 template <typename Mapping> 798 static bool Apply(uptr mem) { 799 return mem >= Mapping::kShadowBeg && mem <= Mapping::kShadowEnd; 800 } 801}; 802 803ALWAYS_INLINE 804bool IsShadowMem(RawShadow *p) { 805 return SelectMapping<IsShadowMemImpl>(reinterpret_cast<uptr>(p)); 806} 807 808struct IsMetaMemImpl { 809 template <typename Mapping> 810 static bool Apply(uptr mem) { 811 return mem >= Mapping::kMetaShadowBeg && mem <= Mapping::kMetaShadowEnd; 812 } 813}; 814 815ALWAYS_INLINE 816bool IsMetaMem(const u32 *p) { 817 return SelectMapping<IsMetaMemImpl>(reinterpret_cast<uptr>(p)); 818} 819 820struct MemToShadowImpl { 821 template <typename Mapping> 822 static uptr Apply(uptr x) { 823 DCHECK(IsAppMemImpl::Apply<Mapping>(x)); 824 return (((x) & ~(Mapping::kShadowMsk | (kShadowCell - 1))) ^ 825 Mapping::kShadowXor) * 826 kShadowMultiplier + 827 Mapping::kShadowAdd; 828 } 829}; 830 831ALWAYS_INLINE 832RawShadow *MemToShadow(uptr x) { 833 return reinterpret_cast<RawShadow *>(SelectMapping<MemToShadowImpl>(x)); 834} 835 836struct MemToMetaImpl { 837 template <typename Mapping> 838 static u32 *Apply(uptr x) { 839 DCHECK(IsAppMemImpl::Apply<Mapping>(x)); 840 return (u32 *)(((((x) & ~(Mapping::kShadowMsk | (kMetaShadowCell - 1)))) / 841 kMetaShadowCell * kMetaShadowSize) | 842 Mapping::kMetaShadowBeg); 843 } 844}; 845 846ALWAYS_INLINE 847u32 *MemToMeta(uptr x) { return SelectMapping<MemToMetaImpl>(x); } 848 849struct ShadowToMemImpl { 850 template <typename Mapping> 851 static uptr Apply(uptr sp) { 852 if (!IsShadowMemImpl::Apply<Mapping>(sp)) 853 return 0; 854 // The shadow mapping is non-linear and we've lost some bits, so we don't 855 // have an easy way to restore the original app address. But the mapping is 856 // a bijection, so we try to restore the address as belonging to 857 // low/mid/high range consecutively and see if shadow->app->shadow mapping 858 // gives us the same address. 859 uptr p = 860 ((sp - Mapping::kShadowAdd) / kShadowMultiplier) ^ Mapping::kShadowXor; 861 if (p >= Mapping::kLoAppMemBeg && p < Mapping::kLoAppMemEnd && 862 MemToShadowImpl::Apply<Mapping>(p) == sp) 863 return p; 864 if (Mapping::kMidAppMemBeg) { 865 uptr p_mid = p + (Mapping::kMidAppMemBeg & Mapping::kShadowMsk); 866 if (p_mid >= Mapping::kMidAppMemBeg && p_mid < Mapping::kMidAppMemEnd && 867 MemToShadowImpl::Apply<Mapping>(p_mid) == sp) 868 return p_mid; 869 } 870 return p | Mapping::kShadowMsk; 871 } 872}; 873 874ALWAYS_INLINE 875uptr ShadowToMem(RawShadow *s) { 876 return SelectMapping<ShadowToMemImpl>(reinterpret_cast<uptr>(s)); 877} 878 879// Compresses addr to kCompressedAddrBits stored in least significant bits. 880ALWAYS_INLINE uptr CompressAddr(uptr addr) { 881 return addr & ((1ull << kCompressedAddrBits) - 1); 882} 883 884struct RestoreAddrImpl { 885 typedef uptr Result; 886 template <typename Mapping> 887 static Result Apply(uptr addr) { 888 // To restore the address we go over all app memory ranges and check if top 889 // 3 bits of the compressed addr match that of the app range. If yes, we 890 // assume that the compressed address come from that range and restore the 891 // missing top bits to match the app range address. 892 const uptr ranges[] = { 893 Mapping::kLoAppMemBeg, Mapping::kLoAppMemEnd, Mapping::kMidAppMemBeg, 894 Mapping::kMidAppMemEnd, Mapping::kHiAppMemBeg, Mapping::kHiAppMemEnd, 895 Mapping::kHeapMemBeg, Mapping::kHeapMemEnd, 896 }; 897 const uptr indicator = 0x0e0000000000ull; 898 const uptr ind_lsb = 1ull << LeastSignificantSetBitIndex(indicator); 899 for (uptr i = 0; i < ARRAY_SIZE(ranges); i += 2) { 900 uptr beg = ranges[i]; 901 uptr end = ranges[i + 1]; 902 if (beg == end) 903 continue; 904 for (uptr p = beg; p < end; p = RoundDown(p + ind_lsb, ind_lsb)) { 905 if ((addr & indicator) == (p & indicator)) 906 return addr | (p & ~(ind_lsb - 1)); 907 } 908 } 909 Printf("ThreadSanitizer: failed to restore address 0x%zx\n", addr); 910 Die(); 911 } 912}; 913 914// Restores compressed addr from kCompressedAddrBits to full representation. 915// This is called only during reporting and is not performance-critical. 916inline uptr RestoreAddr(uptr addr) { 917 return SelectMapping<RestoreAddrImpl>(addr); 918} 919 920void InitializePlatform(); 921void InitializePlatformEarly(); 922void CheckAndProtect(); 923void InitializeShadowMemoryPlatform(); 924void WriteMemoryProfile(char *buf, uptr buf_size, u64 uptime_ns); 925int ExtractResolvFDs(void *state, int *fds, int nfd); 926int ExtractRecvmsgFDs(void *msg, int *fds, int nfd); 927uptr ExtractLongJmpSp(uptr *env); 928void ImitateTlsWrite(ThreadState *thr, uptr tls_addr, uptr tls_size); 929 930int call_pthread_cancel_with_cleanup(int (*fn)(void *arg), 931 void (*cleanup)(void *arg), void *arg); 932 933void DestroyThreadState(); 934void PlatformCleanUpThreadState(ThreadState *thr); 935 936} // namespace __tsan 937 938#endif // TSAN_PLATFORM_H 939