//===-- tsan_platform.h -----------------------------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // 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 0100 0000 00 - 0200 0000 00: main binary 0200 0000 00 - 1400 0000 00: - 1400 0000 00 - 2400 0000 00: shadow 2400 0000 00 - 3000 0000 00: - 3000 0000 00 - 4000 0000 00: metainfo (memory blocks and sync objects) 4000 0000 00 - 6000 0000 00: - 6000 0000 00 - 6200 0000 00: traces 6200 0000 00 - fe00 0000 00: - fe00 0000 00 - ff00 0000 00: heap ff00 0000 00 - ff80 0000 00: - ff80 0000 00 - ffff ffff ff: modules and main thread stack */ 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 = 0x2400000000ull; 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 /* Go on linux, darwin and freebsd 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; }; #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 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 uptr MappingArchImpl(void) { #if defined(__aarch64__) && !defined(__APPLE__) switch (vmaSize) { case 39: return MappingImpl(); case 42: return MappingImpl(); case 48: return MappingImpl(); } DCHECK(0); return 0; #elif defined(__powerpc64__) switch (vmaSize) { case 44: return MappingImpl(); case 46: return MappingImpl(); case 47: return MappingImpl(); } DCHECK(0); return 0; #else return MappingImpl(); #endif } #if !SANITIZER_GO ALWAYS_INLINE uptr LoAppMemBeg(void) { return MappingArchImpl(); } ALWAYS_INLINE uptr LoAppMemEnd(void) { return MappingArchImpl(); } #ifdef TSAN_MID_APP_RANGE ALWAYS_INLINE uptr MidAppMemBeg(void) { return MappingArchImpl(); } ALWAYS_INLINE uptr MidAppMemEnd(void) { return MappingArchImpl(); } #endif ALWAYS_INLINE uptr HeapMemBeg(void) { return MappingArchImpl(); } ALWAYS_INLINE uptr HeapMemEnd(void) { return MappingArchImpl(); } ALWAYS_INLINE uptr HiAppMemBeg(void) { return MappingArchImpl(); } ALWAYS_INLINE uptr HiAppMemEnd(void) { return MappingArchImpl(); } ALWAYS_INLINE uptr VdsoBeg(void) { return MappingArchImpl(); } #else ALWAYS_INLINE uptr AppMemBeg(void) { return MappingArchImpl(); } ALWAYS_INLINE uptr AppMemEnd(void) { return MappingArchImpl(); } #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(); } ALWAYS_INLINE uptr ShadowEnd(void) { return MappingArchImpl(); } ALWAYS_INLINE uptr MetaShadowBeg(void) { return MappingArchImpl(); } ALWAYS_INLINE uptr MetaShadowEnd(void) { return MappingArchImpl(); } ALWAYS_INLINE uptr TraceMemBeg(void) { return MappingArchImpl(); } ALWAYS_INLINE uptr TraceMemEnd(void) { return MappingArchImpl(); } template 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__) switch (vmaSize) { case 39: return IsAppMemImpl(mem); case 42: return IsAppMemImpl(mem); case 48: return IsAppMemImpl(mem); } DCHECK(0); return false; #elif defined(__powerpc64__) switch (vmaSize) { case 44: return IsAppMemImpl(mem); case 46: return IsAppMemImpl(mem); case 47: return IsAppMemImpl(mem); } DCHECK(0); return false; #else return IsAppMemImpl(mem); #endif } template bool IsShadowMemImpl(uptr mem) { return mem >= Mapping::kShadowBeg && mem <= Mapping::kShadowEnd; } ALWAYS_INLINE bool IsShadowMem(uptr mem) { #if defined(__aarch64__) && !defined(__APPLE__) switch (vmaSize) { case 39: return IsShadowMemImpl(mem); case 42: return IsShadowMemImpl(mem); case 48: return IsShadowMemImpl(mem); } DCHECK(0); return false; #elif defined(__powerpc64__) switch (vmaSize) { case 44: return IsShadowMemImpl(mem); case 46: return IsShadowMemImpl(mem); case 47: return IsShadowMemImpl(mem); } DCHECK(0); return false; #else return IsShadowMemImpl(mem); #endif } template bool IsMetaMemImpl(uptr mem) { return mem >= Mapping::kMetaShadowBeg && mem <= Mapping::kMetaShadowEnd; } ALWAYS_INLINE bool IsMetaMem(uptr mem) { #if defined(__aarch64__) && !defined(__APPLE__) switch (vmaSize) { case 39: return IsMetaMemImpl(mem); case 42: return IsMetaMemImpl(mem); case 48: return IsMetaMemImpl(mem); } DCHECK(0); return false; #elif defined(__powerpc64__) switch (vmaSize) { case 44: return IsMetaMemImpl(mem); case 46: return IsMetaMemImpl(mem); case 47: return IsMetaMemImpl(mem); } DCHECK(0); return false; #else return IsMetaMemImpl(mem); #endif } template 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__) switch (vmaSize) { case 39: return MemToShadowImpl(x); case 42: return MemToShadowImpl(x); case 48: return MemToShadowImpl(x); } DCHECK(0); return 0; #elif defined(__powerpc64__) switch (vmaSize) { case 44: return MemToShadowImpl(x); case 46: return MemToShadowImpl(x); case 47: return MemToShadowImpl(x); } DCHECK(0); return 0; #else return MemToShadowImpl(x); #endif } template 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__) switch (vmaSize) { case 39: return MemToMetaImpl(x); case 42: return MemToMetaImpl(x); case 48: return MemToMetaImpl(x); } DCHECK(0); return 0; #elif defined(__powerpc64__) switch (vmaSize) { case 44: return MemToMetaImpl(x); case 46: return MemToMetaImpl(x); case 47: return MemToMetaImpl(x); } DCHECK(0); return 0; #else return MemToMetaImpl(x); #endif } template 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__) switch (vmaSize) { case 39: return ShadowToMemImpl(s); case 42: return ShadowToMemImpl(s); case 48: return ShadowToMemImpl(s); } DCHECK(0); return 0; #elif defined(__powerpc64__) switch (vmaSize) { case 44: return ShadowToMemImpl(s); case 46: return ShadowToMemImpl(s); case 47: return ShadowToMemImpl(s); } DCHECK(0); return 0; #else return ShadowToMemImpl(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 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__) switch (vmaSize) { case 39: return GetThreadTraceImpl(tid); case 42: return GetThreadTraceImpl(tid); case 48: return GetThreadTraceImpl(tid); } DCHECK(0); return 0; #elif defined(__powerpc64__) switch (vmaSize) { case 44: return GetThreadTraceImpl(tid); case 46: return GetThreadTraceImpl(tid); case 47: return GetThreadTraceImpl(tid); } DCHECK(0); return 0; #else return GetThreadTraceImpl(tid); #endif } template 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__) switch (vmaSize) { case 39: return GetThreadTraceHeaderImpl(tid); case 42: return GetThreadTraceHeaderImpl(tid); case 48: return GetThreadTraceHeaderImpl(tid); } DCHECK(0); return 0; #elif defined(__powerpc64__) switch (vmaSize) { case 44: return GetThreadTraceHeaderImpl(tid); case 46: return GetThreadTraceHeaderImpl(tid); case 47: return GetThreadTraceHeaderImpl(tid); } DCHECK(0); return 0; #else return GetThreadTraceHeaderImpl(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); 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