Mercurial > hg > CbC > CbC_gcc
diff libsanitizer/tsan/tsan_platform.h @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libsanitizer/tsan/tsan_platform.h Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,858 @@ +//===-- tsan_platform.h -----------------------------------------*- C++ -*-===// +// +// 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 +*/ +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 - 1000 0000 00: traces (4 GB) +*/ +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 = 0x1000000000ull; + static const uptr kHiAppMemBeg = 0x1000000000ull; + static const uptr kHiAppMemEnd = 0x1000000000ull; + 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; +}; + +// 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<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__) + 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__) + if (vmaSize == 44) + return MappingImpl<Mapping44, Type>(); + else + return MappingImpl<Mapping46, Type>(); + DCHECK(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__) + 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__) + if (vmaSize == 44) + return IsAppMemImpl<Mapping44>(mem); + else + return IsAppMemImpl<Mapping46>(mem); + DCHECK(0); +#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__) + 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__) + if (vmaSize == 44) + return IsShadowMemImpl<Mapping44>(mem); + else + return IsShadowMemImpl<Mapping46>(mem); + DCHECK(0); +#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__) + 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__) + if (vmaSize == 44) + return IsMetaMemImpl<Mapping44>(mem); + else + return IsMetaMemImpl<Mapping46>(mem); + DCHECK(0); +#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__) + 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__) + if (vmaSize == 44) + return MemToShadowImpl<Mapping44>(x); + else + return MemToShadowImpl<Mapping46>(x); + DCHECK(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__) + 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__) + if (vmaSize == 44) + return MemToMetaImpl<Mapping44>(x); + else + return MemToMetaImpl<Mapping46>(x); + DCHECK(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__) + 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__) + if (vmaSize == 44) + return ShadowToMemImpl<Mapping44>(s); + else + return ShadowToMemImpl<Mapping46>(s); + DCHECK(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__) + 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__) + if (vmaSize == 44) + return GetThreadTraceImpl<Mapping44>(tid); + else + return GetThreadTraceImpl<Mapping46>(tid); + DCHECK(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__) + 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__) + if (vmaSize == 44) + return GetThreadTraceHeaderImpl<Mapping44>(tid); + else + return GetThreadTraceHeaderImpl<Mapping46>(tid); + DCHECK(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); +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