| //===-- tsan_platform.h -----------------------------------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file is a part of ThreadSanitizer (TSan), a race detector. |
| // |
| // Platform-specific code. |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef TSAN_PLATFORM_H |
| #define TSAN_PLATFORM_H |
| |
| #if !defined(__LP64__) && !defined(_WIN64) |
| # error "Only 64-bit is supported" |
| #endif |
| |
| #include "sanitizer_common/sanitizer_common.h" |
| #include "tsan_defs.h" |
| |
| namespace __tsan { |
| |
| enum { |
| // App memory is not mapped onto shadow memory range. |
| kBrokenMapping = 1 << 0, |
| // Mapping app memory and back does not produce the same address, |
| // this can lead to wrong addresses in reports and potentially |
| // other bad consequences. |
| kBrokenReverseMapping = 1 << 1, |
| // Mapping is non-linear for linear user range. |
| // This is bad and can lead to unpredictable memory corruptions, etc |
| // because range access functions assume linearity. |
| kBrokenLinearity = 1 << 2, |
| }; |
| |
| /* |
| C/C++ on linux/x86_64 and freebsd/x86_64 |
| 0000 0000 1000 - 0080 0000 0000: main binary and/or MAP_32BIT mappings (512GB) |
| 0040 0000 0000 - 0100 0000 0000: - |
| 0100 0000 0000 - 2000 0000 0000: shadow |
| 2000 0000 0000 - 3000 0000 0000: - |
| 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects) |
| 4000 0000 0000 - 5500 0000 0000: - |
| 5500 0000 0000 - 5680 0000 0000: pie binaries without ASLR or on 4.1+ kernels |
| 5680 0000 0000 - 7d00 0000 0000: - |
| 7b00 0000 0000 - 7c00 0000 0000: heap |
| 7c00 0000 0000 - 7e80 0000 0000: - |
| 7e80 0000 0000 - 8000 0000 0000: modules and main thread stack |
| |
| C/C++ on netbsd/amd64 can reuse the same mapping: |
| * The address space starts from 0x1000 (option with 0x0) and ends with |
| 0x7f7ffffff000. |
| * LoAppMem-kHeapMemEnd can be reused as it is. |
| * No VDSO support. |
| * No MidAppMem region. |
| * No additional HeapMem region. |
| * HiAppMem contains the stack, loader, shared libraries and heap. |
| * Stack on NetBSD/amd64 has prereserved 128MB. |
| * Heap grows downwards (top-down). |
| * ASLR must be disabled per-process or globally. |
| */ |
| struct Mapping48AddressSpace { |
| static const uptr kMetaShadowBeg = 0x300000000000ull; |
| static const uptr kMetaShadowEnd = 0x340000000000ull; |
| static const uptr kShadowBeg = 0x010000000000ull; |
| static const uptr kShadowEnd = 0x200000000000ull; |
| static const uptr kHeapMemBeg = 0x7b0000000000ull; |
| static const uptr kHeapMemEnd = 0x7c0000000000ull; |
| static const uptr kLoAppMemBeg = 0x000000001000ull; |
| static const uptr kLoAppMemEnd = 0x008000000000ull; |
| static const uptr kMidAppMemBeg = 0x550000000000ull; |
| static const uptr kMidAppMemEnd = 0x568000000000ull; |
| static const uptr kHiAppMemBeg = 0x7e8000000000ull; |
| static const uptr kHiAppMemEnd = 0x800000000000ull; |
| static const uptr kShadowMsk = 0x780000000000ull; |
| static const uptr kShadowXor = 0x040000000000ull; |
| static const uptr kShadowAdd = 0x000000000000ull; |
| static const uptr kVdsoBeg = 0xf000000000000000ull; |
| }; |
| |
| /* |
| C/C++ on linux/mips64 (40-bit VMA) |
| 0000 0000 00 - 0100 0000 00: - (4 GB) |
| 0100 0000 00 - 0200 0000 00: main binary (4 GB) |
| 0200 0000 00 - 1200 0000 00: - (120 GB) |
| 1200 0000 00 - 4000 0000 00: shadow (128 GB) |
| 4000 0000 00 - 5000 0000 00: metainfo (memory blocks and sync objects) (64 GB) |
| 5000 0000 00 - aa00 0000 00: - (360 GB) |
| aa00 0000 00 - ab00 0000 00: main binary (PIE) (4 GB) |
| ab00 0000 00 - fe00 0000 00: - (332 GB) |
| fe00 0000 00 - ff00 0000 00: heap (4 GB) |
| ff00 0000 00 - ff80 0000 00: - (2 GB) |
| ff80 0000 00 - ffff ffff ff: modules and main thread stack (<2 GB) |
| */ |
| struct MappingMips64_40 { |
| static const uptr kMetaShadowBeg = 0x4000000000ull; |
| static const uptr kMetaShadowEnd = 0x5000000000ull; |
| static const uptr kShadowBeg = 0x1200000000ull; |
| static const uptr kShadowEnd = 0x4000000000ull; |
| static const uptr kHeapMemBeg = 0xfe00000000ull; |
| static const uptr kHeapMemEnd = 0xff00000000ull; |
| static const uptr kLoAppMemBeg = 0x0100000000ull; |
| static const uptr kLoAppMemEnd = 0x0200000000ull; |
| static const uptr kMidAppMemBeg = 0xaa00000000ull; |
| static const uptr kMidAppMemEnd = 0xab00000000ull; |
| static const uptr kHiAppMemBeg = 0xff80000000ull; |
| static const uptr kHiAppMemEnd = 0xffffffffffull; |
| static const uptr kShadowMsk = 0xf800000000ull; |
| static const uptr kShadowXor = 0x0800000000ull; |
| static const uptr kShadowAdd = 0x0000000000ull; |
| static const uptr kVdsoBeg = 0xfffff00000ull; |
| }; |
| |
| /* |
| C/C++ on Darwin/iOS/ARM64 (36-bit VMA, 64 GB VM) |
| 0000 0000 00 - 0100 0000 00: - (4 GB) |
| 0100 0000 00 - 0200 0000 00: main binary, modules, thread stacks (4 GB) |
| 0200 0000 00 - 0300 0000 00: heap (4 GB) |
| 0300 0000 00 - 0400 0000 00: - (4 GB) |
| 0400 0000 00 - 0c00 0000 00: shadow memory (32 GB) |
| 0c00 0000 00 - 0d00 0000 00: - (4 GB) |
| 0d00 0000 00 - 0e00 0000 00: metainfo (4 GB) |
| 0e00 0000 00 - 1000 0000 00: - |
| */ |
| struct MappingAppleAarch64 { |
| static const uptr kLoAppMemBeg = 0x0100000000ull; |
| static const uptr kLoAppMemEnd = 0x0200000000ull; |
| static const uptr kHeapMemBeg = 0x0200000000ull; |
| static const uptr kHeapMemEnd = 0x0300000000ull; |
| static const uptr kShadowBeg = 0x0400000000ull; |
| static const uptr kShadowEnd = 0x0c00000000ull; |
| static const uptr kMetaShadowBeg = 0x0d00000000ull; |
| static const uptr kMetaShadowEnd = 0x0e00000000ull; |
| static const uptr kHiAppMemBeg = 0x0fc0000000ull; |
| static const uptr kHiAppMemEnd = 0x0fc0000000ull; |
| static const uptr kShadowMsk = 0x0ull; |
| static const uptr kShadowXor = 0x0ull; |
| static const uptr kShadowAdd = 0x0200000000ull; |
| static const uptr kVdsoBeg = 0x7000000000000000ull; |
| static const uptr kMidAppMemBeg = 0; |
| static const uptr kMidAppMemEnd = 0; |
| }; |
| |
| /* |
| C/C++ on linux/aarch64 (39-bit VMA) |
| 0000 0010 00 - 0100 0000 00: main binary |
| 0100 0000 00 - 0400 0000 00: - |
| 0400 0000 00 - 2000 0000 00: shadow memory |
| 2000 0000 00 - 3100 0000 00: - |
| 3100 0000 00 - 3400 0000 00: metainfo |
| 3400 0000 00 - 5500 0000 00: - |
| 5500 0000 00 - 5600 0000 00: main binary (PIE) |
| 5600 0000 00 - 7c00 0000 00: - |
| 7c00 0000 00 - 7d00 0000 00: heap |
| 7d00 0000 00 - 7fff ffff ff: modules and main thread stack |
| */ |
| struct MappingAarch64_39 { |
| static const uptr kLoAppMemBeg = 0x0000001000ull; |
| static const uptr kLoAppMemEnd = 0x0100000000ull; |
| static const uptr kShadowBeg = 0x0400000000ull; |
| static const uptr kShadowEnd = 0x2000000000ull; |
| static const uptr kMetaShadowBeg = 0x3100000000ull; |
| static const uptr kMetaShadowEnd = 0x3400000000ull; |
| static const uptr kMidAppMemBeg = 0x5500000000ull; |
| static const uptr kMidAppMemEnd = 0x5600000000ull; |
| static const uptr kHeapMemBeg = 0x7c00000000ull; |
| static const uptr kHeapMemEnd = 0x7d00000000ull; |
| static const uptr kHiAppMemBeg = 0x7e00000000ull; |
| static const uptr kHiAppMemEnd = 0x7fffffffffull; |
| static const uptr kShadowMsk = 0x7800000000ull; |
| static const uptr kShadowXor = 0x0200000000ull; |
| static const uptr kShadowAdd = 0x0000000000ull; |
| static const uptr kVdsoBeg = 0x7f00000000ull; |
| }; |
| |
| /* |
| C/C++ on linux/aarch64 (42-bit VMA) |
| 00000 0010 00 - 01000 0000 00: main binary |
| 01000 0000 00 - 08000 0000 00: - |
| 08000 0000 00 - 20000 0000 00: shadow memory |
| 20000 0000 00 - 26000 0000 00: - |
| 26000 0000 00 - 28000 0000 00: metainfo |
| 28000 0000 00 - 2aa00 0000 00: - |
| 2aa00 0000 00 - 2ab00 0000 00: main binary (PIE) |
| 2ab00 0000 00 - 3e000 0000 00: - |
| 3e000 0000 00 - 3f000 0000 00: heap |
| 3f000 0000 00 - 3ffff ffff ff: modules and main thread stack |
| */ |
| struct MappingAarch64_42 { |
| static const uptr kBroken = kBrokenReverseMapping; |
| static const uptr kLoAppMemBeg = 0x00000001000ull; |
| static const uptr kLoAppMemEnd = 0x01000000000ull; |
| static const uptr kShadowBeg = 0x08000000000ull; |
| static const uptr kShadowEnd = 0x20000000000ull; |
| static const uptr kMetaShadowBeg = 0x26000000000ull; |
| static const uptr kMetaShadowEnd = 0x28000000000ull; |
| static const uptr kMidAppMemBeg = 0x2aa00000000ull; |
| static const uptr kMidAppMemEnd = 0x2ab00000000ull; |
| static const uptr kHeapMemBeg = 0x3e000000000ull; |
| static const uptr kHeapMemEnd = 0x3f000000000ull; |
| static const uptr kHiAppMemBeg = 0x3f000000000ull; |
| static const uptr kHiAppMemEnd = 0x3ffffffffffull; |
| static const uptr kShadowMsk = 0x3c000000000ull; |
| static const uptr kShadowXor = 0x04000000000ull; |
| static const uptr kShadowAdd = 0x00000000000ull; |
| static const uptr kVdsoBeg = 0x37f00000000ull; |
| }; |
| |
| struct MappingAarch64_48 { |
| static const uptr kLoAppMemBeg = 0x0000000001000ull; |
| static const uptr kLoAppMemEnd = 0x0000200000000ull; |
| static const uptr kShadowBeg = 0x0001000000000ull; |
| static const uptr kShadowEnd = 0x0004000000000ull; |
| static const uptr kMetaShadowBeg = 0x0005000000000ull; |
| static const uptr kMetaShadowEnd = 0x0006000000000ull; |
| static const uptr kMidAppMemBeg = 0x0aaaa00000000ull; |
| static const uptr kMidAppMemEnd = 0x0aaaf00000000ull; |
| static const uptr kHeapMemBeg = 0x0ffff00000000ull; |
| static const uptr kHeapMemEnd = 0x0ffff00000000ull; |
| static const uptr kHiAppMemBeg = 0x0ffff00000000ull; |
| static const uptr kHiAppMemEnd = 0x1000000000000ull; |
| static const uptr kShadowMsk = 0x0fff800000000ull; |
| static const uptr kShadowXor = 0x0000800000000ull; |
| static const uptr kShadowAdd = 0x0000000000000ull; |
| static const uptr kVdsoBeg = 0xffff000000000ull; |
| }; |
| |
| /* |
| C/C++ on linux/powerpc64 (44-bit VMA) |
| 0000 0000 0100 - 0001 0000 0000: main binary |
| 0001 0000 0000 - 0001 0000 0000: - |
| 0001 0000 0000 - 0b00 0000 0000: shadow |
| 0b00 0000 0000 - 0b00 0000 0000: - |
| 0b00 0000 0000 - 0d00 0000 0000: metainfo (memory blocks and sync objects) |
| 0d00 0000 0000 - 0f00 0000 0000: - |
| 0f00 0000 0000 - 0f50 0000 0000: heap |
| 0f50 0000 0000 - 0f60 0000 0000: - |
| 0f60 0000 0000 - 1000 0000 0000: modules and main thread stack |
| */ |
| struct MappingPPC64_44 { |
| static const uptr kBroken = |
| kBrokenMapping | kBrokenReverseMapping | kBrokenLinearity; |
| static const uptr kMetaShadowBeg = 0x0b0000000000ull; |
| static const uptr kMetaShadowEnd = 0x0d0000000000ull; |
| static const uptr kShadowBeg = 0x000100000000ull; |
| static const uptr kShadowEnd = 0x0b0000000000ull; |
| static const uptr kLoAppMemBeg = 0x000000000100ull; |
| static const uptr kLoAppMemEnd = 0x000100000000ull; |
| static const uptr kHeapMemBeg = 0x0f0000000000ull; |
| static const uptr kHeapMemEnd = 0x0f5000000000ull; |
| static const uptr kHiAppMemBeg = 0x0f6000000000ull; |
| static const uptr kHiAppMemEnd = 0x100000000000ull; // 44 bits |
| static const uptr kShadowMsk = 0x0f0000000000ull; |
| static const uptr kShadowXor = 0x002100000000ull; |
| static const uptr kShadowAdd = 0x000000000000ull; |
| static const uptr kVdsoBeg = 0x3c0000000000000ull; |
| static const uptr kMidAppMemBeg = 0; |
| static const uptr kMidAppMemEnd = 0; |
| }; |
| |
| /* |
| C/C++ on linux/powerpc64 (46-bit VMA) |
| 0000 0000 1000 - 0100 0000 0000: main binary |
| 0100 0000 0000 - 0200 0000 0000: - |
| 0100 0000 0000 - 1000 0000 0000: shadow |
| 1000 0000 0000 - 1000 0000 0000: - |
| 1000 0000 0000 - 2000 0000 0000: metainfo (memory blocks and sync objects) |
| 2000 0000 0000 - 2000 0000 0000: - |
| 1200 0000 0000 - 3d00 0000 0000: - |
| 3d00 0000 0000 - 3e00 0000 0000: heap |
| 3e00 0000 0000 - 3e80 0000 0000: - |
| 3e80 0000 0000 - 4000 0000 0000: modules and main thread stack |
| */ |
| struct MappingPPC64_46 { |
| static const uptr kMetaShadowBeg = 0x100000000000ull; |
| static const uptr kMetaShadowEnd = 0x200000000000ull; |
| static const uptr kShadowBeg = 0x010000000000ull; |
| static const uptr kShadowEnd = 0x100000000000ull; |
| static const uptr kHeapMemBeg = 0x3d0000000000ull; |
| static const uptr kHeapMemEnd = 0x3e0000000000ull; |
| static const uptr kLoAppMemBeg = 0x000000001000ull; |
| static const uptr kLoAppMemEnd = 0x010000000000ull; |
| static const uptr kHiAppMemBeg = 0x3e8000000000ull; |
| static const uptr kHiAppMemEnd = 0x400000000000ull; // 46 bits |
| static const uptr kShadowMsk = 0x3c0000000000ull; |
| static const uptr kShadowXor = 0x020000000000ull; |
| static const uptr kShadowAdd = 0x000000000000ull; |
| static const uptr kVdsoBeg = 0x7800000000000000ull; |
| static const uptr kMidAppMemBeg = 0; |
| static const uptr kMidAppMemEnd = 0; |
| }; |
| |
| /* |
| C/C++ on linux/powerpc64 (47-bit VMA) |
| 0000 0000 1000 - 0100 0000 0000: main binary |
| 0100 0000 0000 - 0200 0000 0000: - |
| 0100 0000 0000 - 1000 0000 0000: shadow |
| 1000 0000 0000 - 1000 0000 0000: - |
| 1000 0000 0000 - 2000 0000 0000: metainfo (memory blocks and sync objects) |
| 2000 0000 0000 - 7d00 0000 0000: - |
| 7d00 0000 0000 - 7e00 0000 0000: heap |
| 7e00 0000 0000 - 7e80 0000 0000: - |
| 7e80 0000 0000 - 8000 0000 0000: modules and main thread stack |
| */ |
| struct MappingPPC64_47 { |
| static const uptr kMetaShadowBeg = 0x100000000000ull; |
| static const uptr kMetaShadowEnd = 0x200000000000ull; |
| static const uptr kShadowBeg = 0x010000000000ull; |
| static const uptr kShadowEnd = 0x100000000000ull; |
| static const uptr kHeapMemBeg = 0x7d0000000000ull; |
| static const uptr kHeapMemEnd = 0x7e0000000000ull; |
| static const uptr kLoAppMemBeg = 0x000000001000ull; |
| static const uptr kLoAppMemEnd = 0x010000000000ull; |
| static const uptr kHiAppMemBeg = 0x7e8000000000ull; |
| static const uptr kHiAppMemEnd = 0x800000000000ull; // 47 bits |
| static const uptr kShadowMsk = 0x7c0000000000ull; |
| static const uptr kShadowXor = 0x020000000000ull; |
| static const uptr kShadowAdd = 0x000000000000ull; |
| static const uptr kVdsoBeg = 0x7800000000000000ull; |
| static const uptr kMidAppMemBeg = 0; |
| static const uptr kMidAppMemEnd = 0; |
| }; |
| |
| /* |
| C/C++ on linux/s390x |
| While the kernel provides a 64-bit address space, we have to restrict ourselves |
| to 48 bits due to how e.g. SyncVar::GetId() works. |
| 0000 0000 1000 - 0e00 0000 0000: binary, modules, stacks - 14 TiB |
| 0e00 0000 0000 - 2000 0000 0000: - |
| 2000 0000 0000 - 8000 0000 0000: shadow - 64TiB (4 * app) |
| 8000 0000 0000 - 9000 0000 0000: - |
| 9000 0000 0000 - 9800 0000 0000: metainfo - 8TiB (0.5 * app) |
| 9800 0000 0000 - be00 0000 0000: - |
| be00 0000 0000 - c000 0000 0000: heap - 2TiB (max supported by the allocator) |
| */ |
| struct MappingS390x { |
| static const uptr kMetaShadowBeg = 0x900000000000ull; |
| static const uptr kMetaShadowEnd = 0x980000000000ull; |
| static const uptr kShadowBeg = 0x200000000000ull; |
| static const uptr kShadowEnd = 0x800000000000ull; |
| static const uptr kHeapMemBeg = 0xbe0000000000ull; |
| static const uptr kHeapMemEnd = 0xc00000000000ull; |
| static const uptr kLoAppMemBeg = 0x000000001000ull; |
| static const uptr kLoAppMemEnd = 0x0e0000000000ull; |
| static const uptr kHiAppMemBeg = 0xc00000004000ull; |
| static const uptr kHiAppMemEnd = 0xc00000004000ull; |
| static const uptr kShadowMsk = 0xb00000000000ull; |
| static const uptr kShadowXor = 0x100000000000ull; |
| static const uptr kShadowAdd = 0x000000000000ull; |
| static const uptr kVdsoBeg = 0xfffffffff000ull; |
| static const uptr kMidAppMemBeg = 0; |
| static const uptr kMidAppMemEnd = 0; |
| }; |
| |
| /* Go on linux, darwin and freebsd on x86_64 |
| 0000 0000 1000 - 0000 1000 0000: executable |
| 0000 1000 0000 - 00c0 0000 0000: - |
| 00c0 0000 0000 - 00e0 0000 0000: heap |
| 00e0 0000 0000 - 2000 0000 0000: - |
| 2000 0000 0000 - 2380 0000 0000: shadow |
| 2380 0000 0000 - 3000 0000 0000: - |
| 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects) |
| 4000 0000 0000 - 8000 0000 0000: - |
| */ |
| |
| struct MappingGo48 { |
| static const uptr kMetaShadowBeg = 0x300000000000ull; |
| static const uptr kMetaShadowEnd = 0x400000000000ull; |
| static const uptr kShadowBeg = 0x200000000000ull; |
| static const uptr kShadowEnd = 0x238000000000ull; |
| static const uptr kLoAppMemBeg = 0x000000001000ull; |
| static const uptr kLoAppMemEnd = 0x00e000000000ull; |
| static const uptr kMidAppMemBeg = 0; |
| static const uptr kMidAppMemEnd = 0; |
| static const uptr kHiAppMemBeg = 0; |
| static const uptr kHiAppMemEnd = 0; |
| static const uptr kHeapMemBeg = 0; |
| static const uptr kHeapMemEnd = 0; |
| static const uptr kVdsoBeg = 0; |
| static const uptr kShadowMsk = 0; |
| static const uptr kShadowXor = 0; |
| static const uptr kShadowAdd = 0x200000000000ull; |
| }; |
| |
| /* Go on windows |
| 0000 0000 1000 - 0000 1000 0000: executable |
| 0000 1000 0000 - 00f8 0000 0000: - |
| 00c0 0000 0000 - 00e0 0000 0000: heap |
| 00e0 0000 0000 - 0100 0000 0000: - |
| 0100 0000 0000 - 0500 0000 0000: shadow |
| 0500 0000 0000 - 0700 0000 0000: - |
| 0700 0000 0000 - 0770 0000 0000: metainfo (memory blocks and sync objects) |
| 07d0 0000 0000 - 8000 0000 0000: - |
| */ |
| |
| struct MappingGoWindows { |
| static const uptr kMetaShadowBeg = 0x070000000000ull; |
| static const uptr kMetaShadowEnd = 0x077000000000ull; |
| static const uptr kShadowBeg = 0x010000000000ull; |
| static const uptr kShadowEnd = 0x050000000000ull; |
| static const uptr kLoAppMemBeg = 0x000000001000ull; |
| static const uptr kLoAppMemEnd = 0x00e000000000ull; |
| static const uptr kMidAppMemBeg = 0; |
| static const uptr kMidAppMemEnd = 0; |
| static const uptr kHiAppMemBeg = 0; |
| static const uptr kHiAppMemEnd = 0; |
| static const uptr kHeapMemBeg = 0; |
| static const uptr kHeapMemEnd = 0; |
| static const uptr kVdsoBeg = 0; |
| static const uptr kShadowMsk = 0; |
| static const uptr kShadowXor = 0; |
| static const uptr kShadowAdd = 0x010000000000ull; |
| }; |
| |
| /* Go on linux/powerpc64 (46-bit VMA) |
| 0000 0000 1000 - 0000 1000 0000: executable |
| 0000 1000 0000 - 00c0 0000 0000: - |
| 00c0 0000 0000 - 00e0 0000 0000: heap |
| 00e0 0000 0000 - 2000 0000 0000: - |
| 2000 0000 0000 - 2380 0000 0000: shadow |
| 2380 0000 0000 - 2400 0000 0000: - |
| 2400 0000 0000 - 3400 0000 0000: metainfo (memory blocks and sync objects) |
| 3400 0000 0000 - 4000 0000 0000: - |
| */ |
| |
| struct MappingGoPPC64_46 { |
| static const uptr kMetaShadowBeg = 0x240000000000ull; |
| static const uptr kMetaShadowEnd = 0x340000000000ull; |
| static const uptr kShadowBeg = 0x200000000000ull; |
| static const uptr kShadowEnd = 0x238000000000ull; |
| static const uptr kLoAppMemBeg = 0x000000001000ull; |
| static const uptr kLoAppMemEnd = 0x00e000000000ull; |
| static const uptr kMidAppMemBeg = 0; |
| static const uptr kMidAppMemEnd = 0; |
| static const uptr kHiAppMemBeg = 0; |
| static const uptr kHiAppMemEnd = 0; |
| static const uptr kHeapMemBeg = 0; |
| static const uptr kHeapMemEnd = 0; |
| static const uptr kVdsoBeg = 0; |
| static const uptr kShadowMsk = 0; |
| static const uptr kShadowXor = 0; |
| static const uptr kShadowAdd = 0x200000000000ull; |
| }; |
| |
| /* Go on linux/powerpc64 (47-bit VMA) |
| 0000 0000 1000 - 0000 1000 0000: executable |
| 0000 1000 0000 - 00c0 0000 0000: - |
| 00c0 0000 0000 - 00e0 0000 0000: heap |
| 00e0 0000 0000 - 2000 0000 0000: - |
| 2000 0000 0000 - 3000 0000 0000: shadow |
| 3000 0000 0000 - 3000 0000 0000: - |
| 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects) |
| 4000 0000 0000 - 8000 0000 0000: - |
| */ |
| |
| struct MappingGoPPC64_47 { |
| static const uptr kMetaShadowBeg = 0x300000000000ull; |
| static const uptr kMetaShadowEnd = 0x400000000000ull; |
| static const uptr kShadowBeg = 0x200000000000ull; |
| static const uptr kShadowEnd = 0x300000000000ull; |
| static const uptr kLoAppMemBeg = 0x000000001000ull; |
| static const uptr kLoAppMemEnd = 0x00e000000000ull; |
| static const uptr kMidAppMemBeg = 0; |
| static const uptr kMidAppMemEnd = 0; |
| static const uptr kHiAppMemBeg = 0; |
| static const uptr kHiAppMemEnd = 0; |
| static const uptr kHeapMemBeg = 0; |
| static const uptr kHeapMemEnd = 0; |
| static const uptr kVdsoBeg = 0; |
| static const uptr kShadowMsk = 0; |
| static const uptr kShadowXor = 0; |
| static const uptr kShadowAdd = 0x200000000000ull; |
| }; |
| |
| /* Go on linux/aarch64 (48-bit VMA) and darwin/aarch64 (47-bit VMA) |
| 0000 0000 1000 - 0000 1000 0000: executable |
| 0000 1000 0000 - 00c0 0000 0000: - |
| 00c0 0000 0000 - 00e0 0000 0000: heap |
| 00e0 0000 0000 - 2000 0000 0000: - |
| 2000 0000 0000 - 3000 0000 0000: shadow |
| 3000 0000 0000 - 3000 0000 0000: - |
| 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects) |
| 4000 0000 0000 - 8000 0000 0000: - |
| */ |
| struct MappingGoAarch64 { |
| static const uptr kMetaShadowBeg = 0x300000000000ull; |
| static const uptr kMetaShadowEnd = 0x400000000000ull; |
| static const uptr kShadowBeg = 0x200000000000ull; |
| static const uptr kShadowEnd = 0x300000000000ull; |
| static const uptr kLoAppMemBeg = 0x000000001000ull; |
| static const uptr kLoAppMemEnd = 0x00e000000000ull; |
| static const uptr kMidAppMemBeg = 0; |
| static const uptr kMidAppMemEnd = 0; |
| static const uptr kHiAppMemBeg = 0; |
| static const uptr kHiAppMemEnd = 0; |
| static const uptr kHeapMemBeg = 0; |
| static const uptr kHeapMemEnd = 0; |
| static const uptr kVdsoBeg = 0; |
| static const uptr kShadowMsk = 0; |
| static const uptr kShadowXor = 0; |
| static const uptr kShadowAdd = 0x200000000000ull; |
| }; |
| |
| /* |
| Go on linux/mips64 (47-bit VMA) |
| 0000 0000 1000 - 0000 1000 0000: executable |
| 0000 1000 0000 - 00c0 0000 0000: - |
| 00c0 0000 0000 - 00e0 0000 0000: heap |
| 00e0 0000 0000 - 2000 0000 0000: - |
| 2000 0000 0000 - 3000 0000 0000: shadow |
| 3000 0000 0000 - 3000 0000 0000: - |
| 3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects) |
| 3200 0000 0000 - 8000 0000 0000: - |
| */ |
| struct MappingGoMips64_47 { |
| static const uptr kMetaShadowBeg = 0x300000000000ull; |
| static const uptr kMetaShadowEnd = 0x400000000000ull; |
| static const uptr kShadowBeg = 0x200000000000ull; |
| static const uptr kShadowEnd = 0x300000000000ull; |
| static const uptr kLoAppMemBeg = 0x000000001000ull; |
| static const uptr kLoAppMemEnd = 0x00e000000000ull; |
| static const uptr kMidAppMemBeg = 0; |
| static const uptr kMidAppMemEnd = 0; |
| static const uptr kHiAppMemBeg = 0; |
| static const uptr kHiAppMemEnd = 0; |
| static const uptr kHeapMemBeg = 0; |
| static const uptr kHeapMemEnd = 0; |
| static const uptr kVdsoBeg = 0; |
| static const uptr kShadowMsk = 0; |
| static const uptr kShadowXor = 0; |
| static const uptr kShadowAdd = 0x200000000000ull; |
| }; |
| |
| /* |
| Go on linux/s390x |
| 0000 0000 1000 - 1000 0000 0000: executable and heap - 16 TiB |
| 1000 0000 0000 - 4000 0000 0000: - |
| 4000 0000 0000 - 8000 0000 0000: shadow - 64TiB (4 * app) |
| 8000 0000 0000 - 9000 0000 0000: - |
| 9000 0000 0000 - 9800 0000 0000: metainfo - 8TiB (0.5 * app) |
| */ |
| struct MappingGoS390x { |
| static const uptr kMetaShadowBeg = 0x900000000000ull; |
| static const uptr kMetaShadowEnd = 0x980000000000ull; |
| static const uptr kShadowBeg = 0x400000000000ull; |
| static const uptr kShadowEnd = 0x800000000000ull; |
| static const uptr kLoAppMemBeg = 0x000000001000ull; |
| static const uptr kLoAppMemEnd = 0x100000000000ull; |
| static const uptr kMidAppMemBeg = 0; |
| static const uptr kMidAppMemEnd = 0; |
| static const uptr kHiAppMemBeg = 0; |
| static const uptr kHiAppMemEnd = 0; |
| static const uptr kHeapMemBeg = 0; |
| static const uptr kHeapMemEnd = 0; |
| static const uptr kVdsoBeg = 0; |
| static const uptr kShadowMsk = 0; |
| static const uptr kShadowXor = 0; |
| static const uptr kShadowAdd = 0x400000000000ull; |
| }; |
| |
| extern uptr vmaSize; |
| |
| template <typename Func, typename Arg> |
| ALWAYS_INLINE auto SelectMapping(Arg arg) { |
| #if SANITIZER_GO |
| # if defined(__powerpc64__) |
| switch (vmaSize) { |
| case 46: |
| return Func::template Apply<MappingGoPPC64_46>(arg); |
| case 47: |
| return Func::template Apply<MappingGoPPC64_47>(arg); |
| } |
| # elif defined(__mips64) |
| return Func::template Apply<MappingGoMips64_47>(arg); |
| # elif defined(__s390x__) |
| return Func::template Apply<MappingGoS390x>(arg); |
| # elif defined(__aarch64__) |
| return Func::template Apply<MappingGoAarch64>(arg); |
| # elif SANITIZER_WINDOWS |
| return Func::template Apply<MappingGoWindows>(arg); |
| # else |
| return Func::template Apply<MappingGo48>(arg); |
| # endif |
| #else // SANITIZER_GO |
| # if defined(__x86_64__) || SANITIZER_IOSSIM || SANITIZER_MAC && !SANITIZER_IOS |
| return Func::template Apply<Mapping48AddressSpace>(arg); |
| # elif defined(__aarch64__) && defined(__APPLE__) |
| return Func::template Apply<MappingAppleAarch64>(arg); |
| # elif defined(__aarch64__) && !defined(__APPLE__) |
| switch (vmaSize) { |
| case 39: |
| return Func::template Apply<MappingAarch64_39>(arg); |
| case 42: |
| return Func::template Apply<MappingAarch64_42>(arg); |
| case 48: |
| return Func::template Apply<MappingAarch64_48>(arg); |
| } |
| # elif defined(__powerpc64__) |
| switch (vmaSize) { |
| case 44: |
| return Func::template Apply<MappingPPC64_44>(arg); |
| case 46: |
| return Func::template Apply<MappingPPC64_46>(arg); |
| case 47: |
| return Func::template Apply<MappingPPC64_47>(arg); |
| } |
| # elif defined(__mips64) |
| return Func::template Apply<MappingMips64_40>(arg); |
| # elif defined(__s390x__) |
| return Func::template Apply<MappingS390x>(arg); |
| # else |
| # error "unsupported platform" |
| # endif |
| #endif |
| Die(); |
| } |
| |
| template <typename Func> |
| void ForEachMapping() { |
| Func::template Apply<Mapping48AddressSpace>(); |
| Func::template Apply<MappingMips64_40>(); |
| Func::template Apply<MappingAppleAarch64>(); |
| Func::template Apply<MappingAarch64_39>(); |
| Func::template Apply<MappingAarch64_42>(); |
| Func::template Apply<MappingAarch64_48>(); |
| Func::template Apply<MappingPPC64_44>(); |
| Func::template Apply<MappingPPC64_46>(); |
| Func::template Apply<MappingPPC64_47>(); |
| Func::template Apply<MappingS390x>(); |
| Func::template Apply<MappingGo48>(); |
| Func::template Apply<MappingGoWindows>(); |
| Func::template Apply<MappingGoPPC64_46>(); |
| Func::template Apply<MappingGoPPC64_47>(); |
| Func::template Apply<MappingGoAarch64>(); |
| Func::template Apply<MappingGoMips64_47>(); |
| Func::template Apply<MappingGoS390x>(); |
| } |
| |
| enum MappingType { |
| kLoAppMemBeg, |
| kLoAppMemEnd, |
| kHiAppMemBeg, |
| kHiAppMemEnd, |
| kMidAppMemBeg, |
| kMidAppMemEnd, |
| kHeapMemBeg, |
| kHeapMemEnd, |
| kShadowBeg, |
| kShadowEnd, |
| kMetaShadowBeg, |
| kMetaShadowEnd, |
| kVdsoBeg, |
| }; |
| |
| struct MappingField { |
| template <typename Mapping> |
| static uptr Apply(MappingType type) { |
| switch (type) { |
| case kLoAppMemBeg: |
| return Mapping::kLoAppMemBeg; |
| case kLoAppMemEnd: |
| return Mapping::kLoAppMemEnd; |
| case kMidAppMemBeg: |
| return Mapping::kMidAppMemBeg; |
| case kMidAppMemEnd: |
| return Mapping::kMidAppMemEnd; |
| case kHiAppMemBeg: |
| return Mapping::kHiAppMemBeg; |
| case kHiAppMemEnd: |
| return Mapping::kHiAppMemEnd; |
| case kHeapMemBeg: |
| return Mapping::kHeapMemBeg; |
| case kHeapMemEnd: |
| return Mapping::kHeapMemEnd; |
| case kVdsoBeg: |
| return Mapping::kVdsoBeg; |
| case kShadowBeg: |
| return Mapping::kShadowBeg; |
| case kShadowEnd: |
| return Mapping::kShadowEnd; |
| case kMetaShadowBeg: |
| return Mapping::kMetaShadowBeg; |
| case kMetaShadowEnd: |
| return Mapping::kMetaShadowEnd; |
| } |
| Die(); |
| } |
| }; |
| |
| ALWAYS_INLINE |
| uptr LoAppMemBeg(void) { return SelectMapping<MappingField>(kLoAppMemBeg); } |
| ALWAYS_INLINE |
| uptr LoAppMemEnd(void) { return SelectMapping<MappingField>(kLoAppMemEnd); } |
| |
| ALWAYS_INLINE |
| uptr MidAppMemBeg(void) { return SelectMapping<MappingField>(kMidAppMemBeg); } |
| ALWAYS_INLINE |
| uptr MidAppMemEnd(void) { return SelectMapping<MappingField>(kMidAppMemEnd); } |
| |
| ALWAYS_INLINE |
| uptr HeapMemBeg(void) { return SelectMapping<MappingField>(kHeapMemBeg); } |
| ALWAYS_INLINE |
| uptr HeapMemEnd(void) { return SelectMapping<MappingField>(kHeapMemEnd); } |
| |
| ALWAYS_INLINE |
| uptr HiAppMemBeg(void) { return SelectMapping<MappingField>(kHiAppMemBeg); } |
| ALWAYS_INLINE |
| uptr HiAppMemEnd(void) { return SelectMapping<MappingField>(kHiAppMemEnd); } |
| |
| ALWAYS_INLINE |
| uptr VdsoBeg(void) { return SelectMapping<MappingField>(kVdsoBeg); } |
| |
| ALWAYS_INLINE |
| uptr ShadowBeg(void) { return SelectMapping<MappingField>(kShadowBeg); } |
| ALWAYS_INLINE |
| uptr ShadowEnd(void) { return SelectMapping<MappingField>(kShadowEnd); } |
| |
| ALWAYS_INLINE |
| uptr MetaShadowBeg(void) { return SelectMapping<MappingField>(kMetaShadowBeg); } |
| ALWAYS_INLINE |
| uptr MetaShadowEnd(void) { return SelectMapping<MappingField>(kMetaShadowEnd); } |
| |
| struct IsAppMemImpl { |
| template <typename Mapping> |
| static bool Apply(uptr mem) { |
| return (mem >= Mapping::kHeapMemBeg && mem < Mapping::kHeapMemEnd) || |
| (mem >= Mapping::kMidAppMemBeg && mem < Mapping::kMidAppMemEnd) || |
| (mem >= Mapping::kLoAppMemBeg && mem < Mapping::kLoAppMemEnd) || |
| (mem >= Mapping::kHiAppMemBeg && mem < Mapping::kHiAppMemEnd); |
| } |
| }; |
| |
| ALWAYS_INLINE |
| bool IsAppMem(uptr mem) { return SelectMapping<IsAppMemImpl>(mem); } |
| |
| struct IsShadowMemImpl { |
| template <typename Mapping> |
| static bool Apply(uptr mem) { |
| return mem >= Mapping::kShadowBeg && mem <= Mapping::kShadowEnd; |
| } |
| }; |
| |
| ALWAYS_INLINE |
| bool IsShadowMem(RawShadow *p) { |
| return SelectMapping<IsShadowMemImpl>(reinterpret_cast<uptr>(p)); |
| } |
| |
| struct IsMetaMemImpl { |
| template <typename Mapping> |
| static bool Apply(uptr mem) { |
| return mem >= Mapping::kMetaShadowBeg && mem <= Mapping::kMetaShadowEnd; |
| } |
| }; |
| |
| ALWAYS_INLINE |
| bool IsMetaMem(const u32 *p) { |
| return SelectMapping<IsMetaMemImpl>(reinterpret_cast<uptr>(p)); |
| } |
| |
| struct MemToShadowImpl { |
| template <typename Mapping> |
| static uptr Apply(uptr x) { |
| DCHECK(IsAppMemImpl::Apply<Mapping>(x)); |
| return (((x) & ~(Mapping::kShadowMsk | (kShadowCell - 1))) ^ |
| Mapping::kShadowXor) * |
| kShadowMultiplier + |
| Mapping::kShadowAdd; |
| } |
| }; |
| |
| ALWAYS_INLINE |
| RawShadow *MemToShadow(uptr x) { |
| return reinterpret_cast<RawShadow *>(SelectMapping<MemToShadowImpl>(x)); |
| } |
| |
| struct MemToMetaImpl { |
| template <typename Mapping> |
| static u32 *Apply(uptr x) { |
| DCHECK(IsAppMemImpl::Apply<Mapping>(x)); |
| return (u32 *)(((((x) & ~(Mapping::kShadowMsk | (kMetaShadowCell - 1)))) / |
| kMetaShadowCell * kMetaShadowSize) | |
| Mapping::kMetaShadowBeg); |
| } |
| }; |
| |
| ALWAYS_INLINE |
| u32 *MemToMeta(uptr x) { return SelectMapping<MemToMetaImpl>(x); } |
| |
| struct ShadowToMemImpl { |
| template <typename Mapping> |
| static uptr Apply(uptr sp) { |
| if (!IsShadowMemImpl::Apply<Mapping>(sp)) |
| return 0; |
| // The shadow mapping is non-linear and we've lost some bits, so we don't |
| // have an easy way to restore the original app address. But the mapping is |
| // a bijection, so we try to restore the address as belonging to |
| // low/mid/high range consecutively and see if shadow->app->shadow mapping |
| // gives us the same address. |
| uptr p = |
| ((sp - Mapping::kShadowAdd) / kShadowMultiplier) ^ Mapping::kShadowXor; |
| if (p >= Mapping::kLoAppMemBeg && p < Mapping::kLoAppMemEnd && |
| MemToShadowImpl::Apply<Mapping>(p) == sp) |
| return p; |
| if (Mapping::kMidAppMemBeg) { |
| uptr p_mid = p + (Mapping::kMidAppMemBeg & Mapping::kShadowMsk); |
| if (p_mid >= Mapping::kMidAppMemBeg && p_mid < Mapping::kMidAppMemEnd && |
| MemToShadowImpl::Apply<Mapping>(p_mid) == sp) |
| return p_mid; |
| } |
| return p | Mapping::kShadowMsk; |
| } |
| }; |
| |
| ALWAYS_INLINE |
| uptr ShadowToMem(RawShadow *s) { |
| return SelectMapping<ShadowToMemImpl>(reinterpret_cast<uptr>(s)); |
| } |
| |
| // Compresses addr to kCompressedAddrBits stored in least significant bits. |
| ALWAYS_INLINE uptr CompressAddr(uptr addr) { |
| return addr & ((1ull << kCompressedAddrBits) - 1); |
| } |
| |
| struct RestoreAddrImpl { |
| typedef uptr Result; |
| template <typename Mapping> |
| static Result Apply(uptr addr) { |
| // To restore the address we go over all app memory ranges and check if top |
| // 3 bits of the compressed addr match that of the app range. If yes, we |
| // assume that the compressed address come from that range and restore the |
| // missing top bits to match the app range address. |
| const uptr ranges[] = { |
| Mapping::kLoAppMemBeg, Mapping::kLoAppMemEnd, Mapping::kMidAppMemBeg, |
| Mapping::kMidAppMemEnd, Mapping::kHiAppMemBeg, Mapping::kHiAppMemEnd, |
| Mapping::kHeapMemBeg, Mapping::kHeapMemEnd, |
| }; |
| const uptr indicator = 0x0e0000000000ull; |
| const uptr ind_lsb = 1ull << LeastSignificantSetBitIndex(indicator); |
| for (uptr i = 0; i < ARRAY_SIZE(ranges); i += 2) { |
| uptr beg = ranges[i]; |
| uptr end = ranges[i + 1]; |
| if (beg == end) |
| continue; |
| for (uptr p = beg; p < end; p = RoundDown(p + ind_lsb, ind_lsb)) { |
| if ((addr & indicator) == (p & indicator)) |
| return addr | (p & ~(ind_lsb - 1)); |
| } |
| } |
| Printf("ThreadSanitizer: failed to restore address 0x%zx\n", addr); |
| Die(); |
| } |
| }; |
| |
| // Restores compressed addr from kCompressedAddrBits to full representation. |
| // This is called only during reporting and is not performance-critical. |
| inline uptr RestoreAddr(uptr addr) { |
| return SelectMapping<RestoreAddrImpl>(addr); |
| } |
| |
| void InitializePlatform(); |
| void InitializePlatformEarly(); |
| void CheckAndProtect(); |
| void InitializeShadowMemoryPlatform(); |
| void WriteMemoryProfile(char *buf, uptr buf_size, u64 uptime_ns); |
| int ExtractResolvFDs(void *state, int *fds, int nfd); |
| int ExtractRecvmsgFDs(void *msg, int *fds, int nfd); |
| uptr ExtractLongJmpSp(uptr *env); |
| void ImitateTlsWrite(ThreadState *thr, uptr tls_addr, uptr tls_size); |
| |
| int call_pthread_cancel_with_cleanup(int (*fn)(void *arg), |
| void (*cleanup)(void *arg), void *arg); |
| |
| void DestroyThreadState(); |
| void PlatformCleanUpThreadState(ThreadState *thr); |
| |
| } // namespace __tsan |
| |
| #endif // TSAN_PLATFORM_H |
