| //===-- 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 "tsan_defs.h" |
| #include "tsan_trace.h" |
| |
| namespace __tsan { |
| |
| #if !SANITIZER_GO |
| |
| #if defined(__x86_64__) |
| /* |
| 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 - 6000 0000 0000: - |
| 6000 0000 0000 - 6200 0000 0000: traces |
| 6200 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 Mapping { |
| static const uptr kMetaShadowBeg = 0x300000000000ull; |
| static const uptr kMetaShadowEnd = 0x340000000000ull; |
| static const uptr kTraceMemBeg = 0x600000000000ull; |
| static const uptr kTraceMemEnd = 0x620000000000ull; |
| 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 kAppMemMsk = 0x780000000000ull; |
| static const uptr kAppMemXor = 0x040000000000ull; |
| static const uptr kVdsoBeg = 0xf000000000000000ull; |
| }; |
| |
| #define TSAN_MID_APP_RANGE 1 |
| #elif defined(__mips64) |
| /* |
| 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 - 2000 0000 00: - (120 GB) |
| 2000 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 - b000 0000 00: - (20 GB) |
| b000 0000 00 - b200 0000 00: traces (8 GB) |
| b200 0000 00 - fe00 0000 00: - (304 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 Mapping { |
| static const uptr kMetaShadowBeg = 0x4000000000ull; |
| static const uptr kMetaShadowEnd = 0x5000000000ull; |
| static const uptr kTraceMemBeg = 0xb000000000ull; |
| static const uptr kTraceMemEnd = 0xb200000000ull; |
| static const uptr kShadowBeg = 0x2000000000ull; |
| 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 kAppMemMsk = 0xf800000000ull; |
| static const uptr kAppMemXor = 0x0800000000ull; |
| static const uptr kVdsoBeg = 0xfffff00000ull; |
| }; |
| |
| #define TSAN_MID_APP_RANGE 1 |
| #elif defined(__aarch64__) && defined(__APPLE__) |
| /* |
| 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 - 0f00 0000 00: - (4 GB) |
| 0f00 0000 00 - 0fc0 0000 00: traces (3 GB) |
| 0fc0 0000 00 - 1000 0000 00: - |
| */ |
| struct Mapping { |
| 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 kTraceMemBeg = 0x0f00000000ull; |
| static const uptr kTraceMemEnd = 0x0fc0000000ull; |
| static const uptr kHiAppMemBeg = 0x0fc0000000ull; |
| static const uptr kHiAppMemEnd = 0x0fc0000000ull; |
| static const uptr kAppMemMsk = 0x0ull; |
| static const uptr kAppMemXor = 0x0ull; |
| static const uptr kVdsoBeg = 0x7000000000000000ull; |
| }; |
| |
| #elif defined(__aarch64__) |
| // AArch64 supports multiple VMA which leads to multiple address transformation |
| // functions. To support these multiple VMAS transformations and mappings TSAN |
| // runtime for AArch64 uses an external memory read (vmaSize) to select which |
| // mapping to use. Although slower, it make a same instrumented binary run on |
| // multiple kernels. |
| |
| /* |
| C/C++ on linux/aarch64 (39-bit VMA) |
| 0000 0010 00 - 0100 0000 00: main binary |
| 0100 0000 00 - 0800 0000 00: - |
| 0800 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 - 6000 0000 00: - |
| 6000 0000 00 - 6200 0000 00: traces |
| 6200 0000 00 - 7d00 0000 00: - |
| 7c00 0000 00 - 7d00 0000 00: heap |
| 7d00 0000 00 - 7fff ffff ff: modules and main thread stack |
| */ |
| struct Mapping39 { |
| static const uptr kLoAppMemBeg = 0x0000001000ull; |
| static const uptr kLoAppMemEnd = 0x0100000000ull; |
| static const uptr kShadowBeg = 0x0800000000ull; |
| 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 kTraceMemBeg = 0x6000000000ull; |
| static const uptr kTraceMemEnd = 0x6200000000ull; |
| static const uptr kHeapMemBeg = 0x7c00000000ull; |
| static const uptr kHeapMemEnd = 0x7d00000000ull; |
| static const uptr kHiAppMemBeg = 0x7e00000000ull; |
| static const uptr kHiAppMemEnd = 0x7fffffffffull; |
| static const uptr kAppMemMsk = 0x7800000000ull; |
| static const uptr kAppMemXor = 0x0200000000ull; |
| static const uptr kVdsoBeg = 0x7f00000000ull; |
| }; |
| |
| /* |
| C/C++ on linux/aarch64 (42-bit VMA) |
| 00000 0010 00 - 01000 0000 00: main binary |
| 01000 0000 00 - 10000 0000 00: - |
| 10000 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 - 36200 0000 00: - |
| 36200 0000 00 - 36240 0000 00: traces |
| 36240 0000 00 - 3e000 0000 00: - |
| 3e000 0000 00 - 3f000 0000 00: heap |
| 3f000 0000 00 - 3ffff ffff ff: modules and main thread stack |
| */ |
| struct Mapping42 { |
| static const uptr kLoAppMemBeg = 0x00000001000ull; |
| static const uptr kLoAppMemEnd = 0x01000000000ull; |
| static const uptr kShadowBeg = 0x10000000000ull; |
| 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 kTraceMemBeg = 0x36200000000ull; |
| static const uptr kTraceMemEnd = 0x36400000000ull; |
| static const uptr kHeapMemBeg = 0x3e000000000ull; |
| static const uptr kHeapMemEnd = 0x3f000000000ull; |
| static const uptr kHiAppMemBeg = 0x3f000000000ull; |
| static const uptr kHiAppMemEnd = 0x3ffffffffffull; |
| static const uptr kAppMemMsk = 0x3c000000000ull; |
| static const uptr kAppMemXor = 0x04000000000ull; |
| static const uptr kVdsoBeg = 0x37f00000000ull; |
| }; |
| |
| struct Mapping48 { |
| static const uptr kLoAppMemBeg = 0x0000000001000ull; |
| static const uptr kLoAppMemEnd = 0x0000200000000ull; |
| static const uptr kShadowBeg = 0x0002000000000ull; |
| 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 kTraceMemBeg = 0x0f06000000000ull; |
| static const uptr kTraceMemEnd = 0x0f06200000000ull; |
| static const uptr kHeapMemBeg = 0x0ffff00000000ull; |
| static const uptr kHeapMemEnd = 0x0ffff00000000ull; |
| static const uptr kHiAppMemBeg = 0x0ffff00000000ull; |
| static const uptr kHiAppMemEnd = 0x1000000000000ull; |
| static const uptr kAppMemMsk = 0x0fff800000000ull; |
| static const uptr kAppMemXor = 0x0000800000000ull; |
| static const uptr kVdsoBeg = 0xffff000000000ull; |
| }; |
| |
| // Indicates the runtime will define the memory regions at runtime. |
| #define TSAN_RUNTIME_VMA 1 |
| // Indicates that mapping defines a mid range memory segment. |
| #define TSAN_MID_APP_RANGE 1 |
| #elif defined(__powerpc64__) |
| // PPC64 supports multiple VMA which leads to multiple address transformation |
| // functions. To support these multiple VMAS transformations and mappings TSAN |
| // runtime for PPC64 uses an external memory read (vmaSize) to select which |
| // mapping to use. Although slower, it make a same instrumented binary run on |
| // multiple kernels. |
| |
| /* |
| 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 - 0d00 0000 0000: - |
| 0d00 0000 0000 - 0f00 0000 0000: traces |
| 0f00 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 Mapping44 { |
| static const uptr kMetaShadowBeg = 0x0b0000000000ull; |
| static const uptr kMetaShadowEnd = 0x0d0000000000ull; |
| static const uptr kTraceMemBeg = 0x0d0000000000ull; |
| static const uptr kTraceMemEnd = 0x0f0000000000ull; |
| 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 kAppMemMsk = 0x0f0000000000ull; |
| static const uptr kAppMemXor = 0x002100000000ull; |
| static const uptr kVdsoBeg = 0x3c0000000000000ull; |
| }; |
| |
| /* |
| 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: - |
| 2000 0000 0000 - 2200 0000 0000: traces |
| 2200 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 Mapping46 { |
| static const uptr kMetaShadowBeg = 0x100000000000ull; |
| static const uptr kMetaShadowEnd = 0x200000000000ull; |
| static const uptr kTraceMemBeg = 0x200000000000ull; |
| static const uptr kTraceMemEnd = 0x220000000000ull; |
| 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 kAppMemMsk = 0x3c0000000000ull; |
| static const uptr kAppMemXor = 0x020000000000ull; |
| static const uptr kVdsoBeg = 0x7800000000000000ull; |
| }; |
| |
| /* |
| 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 - 2000 0000 0000: - |
| 2000 0000 0000 - 2200 0000 0000: traces |
| 2200 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 Mapping47 { |
| static const uptr kMetaShadowBeg = 0x100000000000ull; |
| static const uptr kMetaShadowEnd = 0x200000000000ull; |
| static const uptr kTraceMemBeg = 0x200000000000ull; |
| static const uptr kTraceMemEnd = 0x220000000000ull; |
| 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 kAppMemMsk = 0x7c0000000000ull; |
| static const uptr kAppMemXor = 0x020000000000ull; |
| static const uptr kVdsoBeg = 0x7800000000000000ull; |
| }; |
| |
| // Indicates the runtime will define the memory regions at runtime. |
| #define TSAN_RUNTIME_VMA 1 |
| #endif |
| |
| #elif SANITIZER_GO && !SANITIZER_WINDOWS && defined(__x86_64__) |
| |
| /* 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 - 6000 0000 0000: - |
| 6000 0000 0000 - 6200 0000 0000: traces |
| 6200 0000 0000 - 8000 0000 0000: - |
| */ |
| |
| struct Mapping { |
| static const uptr kMetaShadowBeg = 0x300000000000ull; |
| static const uptr kMetaShadowEnd = 0x400000000000ull; |
| static const uptr kTraceMemBeg = 0x600000000000ull; |
| static const uptr kTraceMemEnd = 0x620000000000ull; |
| static const uptr kShadowBeg = 0x200000000000ull; |
| static const uptr kShadowEnd = 0x238000000000ull; |
| static const uptr kAppMemBeg = 0x000000001000ull; |
| static const uptr kAppMemEnd = 0x00e000000000ull; |
| }; |
| |
| #elif SANITIZER_GO && SANITIZER_WINDOWS |
| |
| /* 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 - 0560 0000 0000: - |
| 0560 0000 0000 - 0760 0000 0000: traces |
| 0760 0000 0000 - 07d0 0000 0000: metainfo (memory blocks and sync objects) |
| 07d0 0000 0000 - 8000 0000 0000: - |
| */ |
| |
| struct Mapping { |
| static const uptr kMetaShadowBeg = 0x076000000000ull; |
| static const uptr kMetaShadowEnd = 0x07d000000000ull; |
| static const uptr kTraceMemBeg = 0x056000000000ull; |
| static const uptr kTraceMemEnd = 0x076000000000ull; |
| static const uptr kShadowBeg = 0x010000000000ull; |
| static const uptr kShadowEnd = 0x050000000000ull; |
| static const uptr kAppMemBeg = 0x000000001000ull; |
| static const uptr kAppMemEnd = 0x00e000000000ull; |
| }; |
| |
| #elif SANITIZER_GO && defined(__powerpc64__) |
| |
| /* Only Mapping46 and Mapping47 are currently supported for powercp64 on Go. */ |
| |
| /* 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 - 3600 0000 0000: - |
| 3600 0000 0000 - 3800 0000 0000: traces |
| 3800 0000 0000 - 4000 0000 0000: - |
| */ |
| |
| struct Mapping46 { |
| static const uptr kMetaShadowBeg = 0x240000000000ull; |
| static const uptr kMetaShadowEnd = 0x340000000000ull; |
| static const uptr kTraceMemBeg = 0x360000000000ull; |
| static const uptr kTraceMemEnd = 0x380000000000ull; |
| static const uptr kShadowBeg = 0x200000000000ull; |
| static const uptr kShadowEnd = 0x238000000000ull; |
| static const uptr kAppMemBeg = 0x000000001000ull; |
| static const uptr kAppMemEnd = 0x00e000000000ull; |
| }; |
| |
| /* 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 - 6000 0000 0000: - |
| 6000 0000 0000 - 6200 0000 0000: traces |
| 6200 0000 0000 - 8000 0000 0000: - |
| */ |
| |
| struct Mapping47 { |
| static const uptr kMetaShadowBeg = 0x300000000000ull; |
| static const uptr kMetaShadowEnd = 0x400000000000ull; |
| static const uptr kTraceMemBeg = 0x600000000000ull; |
| static const uptr kTraceMemEnd = 0x620000000000ull; |
| static const uptr kShadowBeg = 0x200000000000ull; |
| static const uptr kShadowEnd = 0x300000000000ull; |
| static const uptr kAppMemBeg = 0x000000001000ull; |
| static const uptr kAppMemEnd = 0x00e000000000ull; |
| }; |
| |
| #define TSAN_RUNTIME_VMA 1 |
| |
| #elif SANITIZER_GO && defined(__aarch64__) |
| |
| /* Go on linux/aarch64 (48-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 - 6000 0000 0000: - |
| 6000 0000 0000 - 6200 0000 0000: traces |
| 6200 0000 0000 - 8000 0000 0000: - |
| */ |
| |
| struct Mapping { |
| static const uptr kMetaShadowBeg = 0x300000000000ull; |
| static const uptr kMetaShadowEnd = 0x400000000000ull; |
| static const uptr kTraceMemBeg = 0x600000000000ull; |
| static const uptr kTraceMemEnd = 0x620000000000ull; |
| static const uptr kShadowBeg = 0x200000000000ull; |
| static const uptr kShadowEnd = 0x300000000000ull; |
| static const uptr kAppMemBeg = 0x000000001000ull; |
| static const uptr kAppMemEnd = 0x00e000000000ull; |
| }; |
| |
| // Indicates the runtime will define the memory regions at runtime. |
| #define TSAN_RUNTIME_VMA 1 |
| |
| #else |
| # error "Unknown platform" |
| #endif |
| |
| |
| #ifdef TSAN_RUNTIME_VMA |
| extern uptr vmaSize; |
| #endif |
| |
| |
| enum MappingType { |
| MAPPING_LO_APP_BEG, |
| MAPPING_LO_APP_END, |
| MAPPING_HI_APP_BEG, |
| MAPPING_HI_APP_END, |
| #ifdef TSAN_MID_APP_RANGE |
| MAPPING_MID_APP_BEG, |
| MAPPING_MID_APP_END, |
| #endif |
| MAPPING_HEAP_BEG, |
| MAPPING_HEAP_END, |
| MAPPING_APP_BEG, |
| MAPPING_APP_END, |
| MAPPING_SHADOW_BEG, |
| MAPPING_SHADOW_END, |
| MAPPING_META_SHADOW_BEG, |
| MAPPING_META_SHADOW_END, |
| MAPPING_TRACE_BEG, |
| MAPPING_TRACE_END, |
| MAPPING_VDSO_BEG, |
| }; |
| |
| template<typename Mapping, int Type> |
| uptr MappingImpl(void) { |
| switch (Type) { |
| #if !SANITIZER_GO |
| case MAPPING_LO_APP_BEG: return Mapping::kLoAppMemBeg; |
| case MAPPING_LO_APP_END: return Mapping::kLoAppMemEnd; |
| # ifdef TSAN_MID_APP_RANGE |
| case MAPPING_MID_APP_BEG: return Mapping::kMidAppMemBeg; |
| case MAPPING_MID_APP_END: return Mapping::kMidAppMemEnd; |
| # endif |
| case MAPPING_HI_APP_BEG: return Mapping::kHiAppMemBeg; |
| case MAPPING_HI_APP_END: return Mapping::kHiAppMemEnd; |
| case MAPPING_HEAP_BEG: return Mapping::kHeapMemBeg; |
| case MAPPING_HEAP_END: return Mapping::kHeapMemEnd; |
| case MAPPING_VDSO_BEG: return Mapping::kVdsoBeg; |
| #else |
| case MAPPING_APP_BEG: return Mapping::kAppMemBeg; |
| case MAPPING_APP_END: return Mapping::kAppMemEnd; |
| #endif |
| case MAPPING_SHADOW_BEG: return Mapping::kShadowBeg; |
| case MAPPING_SHADOW_END: return Mapping::kShadowEnd; |
| case MAPPING_META_SHADOW_BEG: return Mapping::kMetaShadowBeg; |
| case MAPPING_META_SHADOW_END: return Mapping::kMetaShadowEnd; |
| case MAPPING_TRACE_BEG: return Mapping::kTraceMemBeg; |
| case MAPPING_TRACE_END: return Mapping::kTraceMemEnd; |
| } |
| } |
| |
| template<int Type> |
| uptr MappingArchImpl(void) { |
| #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO |
| switch (vmaSize) { |
| case 39: return MappingImpl<Mapping39, Type>(); |
| case 42: return MappingImpl<Mapping42, Type>(); |
| case 48: return MappingImpl<Mapping48, Type>(); |
| } |
| DCHECK(0); |
| return 0; |
| #elif defined(__powerpc64__) |
| switch (vmaSize) { |
| #if !SANITIZER_GO |
| case 44: return MappingImpl<Mapping44, Type>(); |
| #endif |
| case 46: return MappingImpl<Mapping46, Type>(); |
| case 47: return MappingImpl<Mapping47, Type>(); |
| } |
| DCHECK(0); |
| return 0; |
| #else |
| return MappingImpl<Mapping, Type>(); |
| #endif |
| } |
| |
| #if !SANITIZER_GO |
| ALWAYS_INLINE |
| uptr LoAppMemBeg(void) { |
| return MappingArchImpl<MAPPING_LO_APP_BEG>(); |
| } |
| ALWAYS_INLINE |
| uptr LoAppMemEnd(void) { |
| return MappingArchImpl<MAPPING_LO_APP_END>(); |
| } |
| |
| #ifdef TSAN_MID_APP_RANGE |
| ALWAYS_INLINE |
| uptr MidAppMemBeg(void) { |
| return MappingArchImpl<MAPPING_MID_APP_BEG>(); |
| } |
| ALWAYS_INLINE |
| uptr MidAppMemEnd(void) { |
| return MappingArchImpl<MAPPING_MID_APP_END>(); |
| } |
| #endif |
| |
| ALWAYS_INLINE |
| uptr HeapMemBeg(void) { |
| return MappingArchImpl<MAPPING_HEAP_BEG>(); |
| } |
| ALWAYS_INLINE |
| uptr HeapMemEnd(void) { |
| return MappingArchImpl<MAPPING_HEAP_END>(); |
| } |
| |
| ALWAYS_INLINE |
| uptr HiAppMemBeg(void) { |
| return MappingArchImpl<MAPPING_HI_APP_BEG>(); |
| } |
| ALWAYS_INLINE |
| uptr HiAppMemEnd(void) { |
| return MappingArchImpl<MAPPING_HI_APP_END>(); |
| } |
| |
| ALWAYS_INLINE |
| uptr VdsoBeg(void) { |
| return MappingArchImpl<MAPPING_VDSO_BEG>(); |
| } |
| |
| #else |
| |
| ALWAYS_INLINE |
| uptr AppMemBeg(void) { |
| return MappingArchImpl<MAPPING_APP_BEG>(); |
| } |
| ALWAYS_INLINE |
| uptr AppMemEnd(void) { |
| return MappingArchImpl<MAPPING_APP_END>(); |
| } |
| |
| #endif |
| |
| static inline |
| bool GetUserRegion(int i, uptr *start, uptr *end) { |
| switch (i) { |
| default: |
| return false; |
| #if !SANITIZER_GO |
| case 0: |
| *start = LoAppMemBeg(); |
| *end = LoAppMemEnd(); |
| return true; |
| case 1: |
| *start = HiAppMemBeg(); |
| *end = HiAppMemEnd(); |
| return true; |
| case 2: |
| *start = HeapMemBeg(); |
| *end = HeapMemEnd(); |
| return true; |
| # ifdef TSAN_MID_APP_RANGE |
| case 3: |
| *start = MidAppMemBeg(); |
| *end = MidAppMemEnd(); |
| return true; |
| # endif |
| #else |
| case 0: |
| *start = AppMemBeg(); |
| *end = AppMemEnd(); |
| return true; |
| #endif |
| } |
| } |
| |
| ALWAYS_INLINE |
| uptr ShadowBeg(void) { |
| return MappingArchImpl<MAPPING_SHADOW_BEG>(); |
| } |
| ALWAYS_INLINE |
| uptr ShadowEnd(void) { |
| return MappingArchImpl<MAPPING_SHADOW_END>(); |
| } |
| |
| ALWAYS_INLINE |
| uptr MetaShadowBeg(void) { |
| return MappingArchImpl<MAPPING_META_SHADOW_BEG>(); |
| } |
| ALWAYS_INLINE |
| uptr MetaShadowEnd(void) { |
| return MappingArchImpl<MAPPING_META_SHADOW_END>(); |
| } |
| |
| ALWAYS_INLINE |
| uptr TraceMemBeg(void) { |
| return MappingArchImpl<MAPPING_TRACE_BEG>(); |
| } |
| ALWAYS_INLINE |
| uptr TraceMemEnd(void) { |
| return MappingArchImpl<MAPPING_TRACE_END>(); |
| } |
| |
| |
| template<typename Mapping> |
| bool IsAppMemImpl(uptr mem) { |
| #if !SANITIZER_GO |
| return (mem >= Mapping::kHeapMemBeg && mem < Mapping::kHeapMemEnd) || |
| # ifdef TSAN_MID_APP_RANGE |
| (mem >= Mapping::kMidAppMemBeg && mem < Mapping::kMidAppMemEnd) || |
| # endif |
| (mem >= Mapping::kLoAppMemBeg && mem < Mapping::kLoAppMemEnd) || |
| (mem >= Mapping::kHiAppMemBeg && mem < Mapping::kHiAppMemEnd); |
| #else |
| return mem >= Mapping::kAppMemBeg && mem < Mapping::kAppMemEnd; |
| #endif |
| } |
| |
| ALWAYS_INLINE |
| bool IsAppMem(uptr mem) { |
| #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO |
| switch (vmaSize) { |
| case 39: return IsAppMemImpl<Mapping39>(mem); |
| case 42: return IsAppMemImpl<Mapping42>(mem); |
| case 48: return IsAppMemImpl<Mapping48>(mem); |
| } |
| DCHECK(0); |
| return false; |
| #elif defined(__powerpc64__) |
| switch (vmaSize) { |
| #if !SANITIZER_GO |
| case 44: return IsAppMemImpl<Mapping44>(mem); |
| #endif |
| case 46: return IsAppMemImpl<Mapping46>(mem); |
| case 47: return IsAppMemImpl<Mapping47>(mem); |
| } |
| DCHECK(0); |
| return false; |
| #else |
| return IsAppMemImpl<Mapping>(mem); |
| #endif |
| } |
| |
| |
| template<typename Mapping> |
| bool IsShadowMemImpl(uptr mem) { |
| return mem >= Mapping::kShadowBeg && mem <= Mapping::kShadowEnd; |
| } |
| |
| ALWAYS_INLINE |
| bool IsShadowMem(uptr mem) { |
| #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO |
| switch (vmaSize) { |
| case 39: return IsShadowMemImpl<Mapping39>(mem); |
| case 42: return IsShadowMemImpl<Mapping42>(mem); |
| case 48: return IsShadowMemImpl<Mapping48>(mem); |
| } |
| DCHECK(0); |
| return false; |
| #elif defined(__powerpc64__) |
| switch (vmaSize) { |
| #if !SANITIZER_GO |
| case 44: return IsShadowMemImpl<Mapping44>(mem); |
| #endif |
| case 46: return IsShadowMemImpl<Mapping46>(mem); |
| case 47: return IsShadowMemImpl<Mapping47>(mem); |
| } |
| DCHECK(0); |
| return false; |
| #else |
| return IsShadowMemImpl<Mapping>(mem); |
| #endif |
| } |
| |
| |
| template<typename Mapping> |
| bool IsMetaMemImpl(uptr mem) { |
| return mem >= Mapping::kMetaShadowBeg && mem <= Mapping::kMetaShadowEnd; |
| } |
| |
| ALWAYS_INLINE |
| bool IsMetaMem(uptr mem) { |
| #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO |
| switch (vmaSize) { |
| case 39: return IsMetaMemImpl<Mapping39>(mem); |
| case 42: return IsMetaMemImpl<Mapping42>(mem); |
| case 48: return IsMetaMemImpl<Mapping48>(mem); |
| } |
| DCHECK(0); |
| return false; |
| #elif defined(__powerpc64__) |
| switch (vmaSize) { |
| #if !SANITIZER_GO |
| case 44: return IsMetaMemImpl<Mapping44>(mem); |
| #endif |
| case 46: return IsMetaMemImpl<Mapping46>(mem); |
| case 47: return IsMetaMemImpl<Mapping47>(mem); |
| } |
| DCHECK(0); |
| return false; |
| #else |
| return IsMetaMemImpl<Mapping>(mem); |
| #endif |
| } |
| |
| |
| template<typename Mapping> |
| uptr MemToShadowImpl(uptr x) { |
| DCHECK(IsAppMem(x)); |
| #if !SANITIZER_GO |
| return (((x) & ~(Mapping::kAppMemMsk | (kShadowCell - 1))) |
| ^ Mapping::kAppMemXor) * kShadowCnt; |
| #else |
| # ifndef SANITIZER_WINDOWS |
| return ((x & ~(kShadowCell - 1)) * kShadowCnt) | Mapping::kShadowBeg; |
| # else |
| return ((x & ~(kShadowCell - 1)) * kShadowCnt) + Mapping::kShadowBeg; |
| # endif |
| #endif |
| } |
| |
| ALWAYS_INLINE |
| uptr MemToShadow(uptr x) { |
| #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO |
| switch (vmaSize) { |
| case 39: return MemToShadowImpl<Mapping39>(x); |
| case 42: return MemToShadowImpl<Mapping42>(x); |
| case 48: return MemToShadowImpl<Mapping48>(x); |
| } |
| DCHECK(0); |
| return 0; |
| #elif defined(__powerpc64__) |
| switch (vmaSize) { |
| #if !SANITIZER_GO |
| case 44: return MemToShadowImpl<Mapping44>(x); |
| #endif |
| case 46: return MemToShadowImpl<Mapping46>(x); |
| case 47: return MemToShadowImpl<Mapping47>(x); |
| } |
| DCHECK(0); |
| return 0; |
| #else |
| return MemToShadowImpl<Mapping>(x); |
| #endif |
| } |
| |
| |
| template<typename Mapping> |
| u32 *MemToMetaImpl(uptr x) { |
| DCHECK(IsAppMem(x)); |
| #if !SANITIZER_GO |
| return (u32*)(((((x) & ~(Mapping::kAppMemMsk | (kMetaShadowCell - 1)))) / |
| kMetaShadowCell * kMetaShadowSize) | Mapping::kMetaShadowBeg); |
| #else |
| # ifndef SANITIZER_WINDOWS |
| return (u32*)(((x & ~(kMetaShadowCell - 1)) / \ |
| kMetaShadowCell * kMetaShadowSize) | Mapping::kMetaShadowBeg); |
| # else |
| return (u32*)(((x & ~(kMetaShadowCell - 1)) / \ |
| kMetaShadowCell * kMetaShadowSize) + Mapping::kMetaShadowBeg); |
| # endif |
| #endif |
| } |
| |
| ALWAYS_INLINE |
| u32 *MemToMeta(uptr x) { |
| #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO |
| switch (vmaSize) { |
| case 39: return MemToMetaImpl<Mapping39>(x); |
| case 42: return MemToMetaImpl<Mapping42>(x); |
| case 48: return MemToMetaImpl<Mapping48>(x); |
| } |
| DCHECK(0); |
| return 0; |
| #elif defined(__powerpc64__) |
| switch (vmaSize) { |
| #if !SANITIZER_GO |
| case 44: return MemToMetaImpl<Mapping44>(x); |
| #endif |
| case 46: return MemToMetaImpl<Mapping46>(x); |
| case 47: return MemToMetaImpl<Mapping47>(x); |
| } |
| DCHECK(0); |
| return 0; |
| #else |
| return MemToMetaImpl<Mapping>(x); |
| #endif |
| } |
| |
| |
| template<typename Mapping> |
| uptr ShadowToMemImpl(uptr s) { |
| DCHECK(IsShadowMem(s)); |
| #if !SANITIZER_GO |
| // 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 = (s / kShadowCnt) ^ Mapping::kAppMemXor; |
| if (p >= Mapping::kLoAppMemBeg && p < Mapping::kLoAppMemEnd && |
| MemToShadow(p) == s) |
| return p; |
| # ifdef TSAN_MID_APP_RANGE |
| p = ((s / kShadowCnt) ^ Mapping::kAppMemXor) + |
| (Mapping::kMidAppMemBeg & Mapping::kAppMemMsk); |
| if (p >= Mapping::kMidAppMemBeg && p < Mapping::kMidAppMemEnd && |
| MemToShadow(p) == s) |
| return p; |
| # endif |
| return ((s / kShadowCnt) ^ Mapping::kAppMemXor) | Mapping::kAppMemMsk; |
| #else // #if !SANITIZER_GO |
| # ifndef SANITIZER_WINDOWS |
| return (s & ~Mapping::kShadowBeg) / kShadowCnt; |
| # else |
| return (s - Mapping::kShadowBeg) / kShadowCnt; |
| # endif // SANITIZER_WINDOWS |
| #endif |
| } |
| |
| ALWAYS_INLINE |
| uptr ShadowToMem(uptr s) { |
| #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO |
| switch (vmaSize) { |
| case 39: return ShadowToMemImpl<Mapping39>(s); |
| case 42: return ShadowToMemImpl<Mapping42>(s); |
| case 48: return ShadowToMemImpl<Mapping48>(s); |
| } |
| DCHECK(0); |
| return 0; |
| #elif defined(__powerpc64__) |
| switch (vmaSize) { |
| #if !SANITIZER_GO |
| case 44: return ShadowToMemImpl<Mapping44>(s); |
| #endif |
| case 46: return ShadowToMemImpl<Mapping46>(s); |
| case 47: return ShadowToMemImpl<Mapping47>(s); |
| } |
| DCHECK(0); |
| return 0; |
| #else |
| return ShadowToMemImpl<Mapping>(s); |
| #endif |
| } |
| |
| |
| |
| // The additional page is to catch shadow stack overflow as paging fault. |
| // Windows wants 64K alignment for mmaps. |
| const uptr kTotalTraceSize = (kTraceSize * sizeof(Event) + sizeof(Trace) |
| + (64 << 10) + (64 << 10) - 1) & ~((64 << 10) - 1); |
| |
| template<typename Mapping> |
| uptr GetThreadTraceImpl(int tid) { |
| uptr p = Mapping::kTraceMemBeg + (uptr)tid * kTotalTraceSize; |
| DCHECK_LT(p, Mapping::kTraceMemEnd); |
| return p; |
| } |
| |
| ALWAYS_INLINE |
| uptr GetThreadTrace(int tid) { |
| #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO |
| switch (vmaSize) { |
| case 39: return GetThreadTraceImpl<Mapping39>(tid); |
| case 42: return GetThreadTraceImpl<Mapping42>(tid); |
| case 48: return GetThreadTraceImpl<Mapping48>(tid); |
| } |
| DCHECK(0); |
| return 0; |
| #elif defined(__powerpc64__) |
| switch (vmaSize) { |
| #if !SANITIZER_GO |
| case 44: return GetThreadTraceImpl<Mapping44>(tid); |
| #endif |
| case 46: return GetThreadTraceImpl<Mapping46>(tid); |
| case 47: return GetThreadTraceImpl<Mapping47>(tid); |
| } |
| DCHECK(0); |
| return 0; |
| #else |
| return GetThreadTraceImpl<Mapping>(tid); |
| #endif |
| } |
| |
| |
| template<typename Mapping> |
| uptr GetThreadTraceHeaderImpl(int tid) { |
| uptr p = Mapping::kTraceMemBeg + (uptr)tid * kTotalTraceSize |
| + kTraceSize * sizeof(Event); |
| DCHECK_LT(p, Mapping::kTraceMemEnd); |
| return p; |
| } |
| |
| ALWAYS_INLINE |
| uptr GetThreadTraceHeader(int tid) { |
| #if defined(__aarch64__) && !defined(__APPLE__) && !SANITIZER_GO |
| switch (vmaSize) { |
| case 39: return GetThreadTraceHeaderImpl<Mapping39>(tid); |
| case 42: return GetThreadTraceHeaderImpl<Mapping42>(tid); |
| case 48: return GetThreadTraceHeaderImpl<Mapping48>(tid); |
| } |
| DCHECK(0); |
| return 0; |
| #elif defined(__powerpc64__) |
| switch (vmaSize) { |
| #if !SANITIZER_GO |
| case 44: return GetThreadTraceHeaderImpl<Mapping44>(tid); |
| #endif |
| case 46: return GetThreadTraceHeaderImpl<Mapping46>(tid); |
| case 47: return GetThreadTraceHeaderImpl<Mapping47>(tid); |
| } |
| DCHECK(0); |
| return 0; |
| #else |
| return GetThreadTraceHeaderImpl<Mapping>(tid); |
| #endif |
| } |
| |
| void InitializePlatform(); |
| void InitializePlatformEarly(); |
| void CheckAndProtect(); |
| void InitializeShadowMemoryPlatform(); |
| void FlushShadowMemory(); |
| void WriteMemoryProfile(char *buf, uptr buf_size, uptr nthread, uptr nlive); |
| 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 *c, void *m, |
| void *abstime), void *c, void *m, void *abstime, |
| void(*cleanup)(void *arg), void *arg); |
| |
| void DestroyThreadState(); |
| |
| } // namespace __tsan |
| |
| #endif // TSAN_PLATFORM_H |
