882 lines
33 KiB
C++
882 lines
33 KiB
C++
//===-- tsan_platform.h -----------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of ThreadSanitizer (TSan), a race detector.
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//
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// Platform-specific code.
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//===----------------------------------------------------------------------===//
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#ifndef TSAN_PLATFORM_H
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#define TSAN_PLATFORM_H
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#if !defined(__LP64__) && !defined(_WIN64)
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# error "Only 64-bit is supported"
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#endif
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#include "sanitizer_common/sanitizer_common.h"
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#include "tsan_defs.h"
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namespace __tsan {
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enum {
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// App memory is not mapped onto shadow memory range.
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kBrokenMapping = 1 << 0,
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// Mapping app memory and back does not produce the same address,
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// this can lead to wrong addresses in reports and potentially
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// other bad consequences.
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kBrokenReverseMapping = 1 << 1,
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// Mapping is non-linear for linear user range.
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// This is bad and can lead to unpredictable memory corruptions, etc
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// because range access functions assume linearity.
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kBrokenLinearity = 1 << 2,
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};
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/*
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C/C++ on linux/x86_64 and freebsd/x86_64
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0000 0000 1000 - 0080 0000 0000: main binary and/or MAP_32BIT mappings (512GB)
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0040 0000 0000 - 0100 0000 0000: -
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0100 0000 0000 - 1000 0000 0000: shadow
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1000 0000 0000 - 3000 0000 0000: -
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3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects)
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4000 0000 0000 - 5500 0000 0000: -
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5500 0000 0000 - 5680 0000 0000: pie binaries without ASLR or on 4.1+ kernels
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5680 0000 0000 - 7d00 0000 0000: -
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7b00 0000 0000 - 7c00 0000 0000: heap
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7c00 0000 0000 - 7e80 0000 0000: -
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7e80 0000 0000 - 8000 0000 0000: modules and main thread stack
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C/C++ on netbsd/amd64 can reuse the same mapping:
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* The address space starts from 0x1000 (option with 0x0) and ends with
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0x7f7ffffff000.
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* LoAppMem-kHeapMemEnd can be reused as it is.
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* No VDSO support.
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* No MidAppMem region.
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* No additional HeapMem region.
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* HiAppMem contains the stack, loader, shared libraries and heap.
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* Stack on NetBSD/amd64 has prereserved 128MB.
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* Heap grows downwards (top-down).
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* ASLR must be disabled per-process or globally.
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*/
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struct Mapping48AddressSpace {
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static const uptr kMetaShadowBeg = 0x300000000000ull;
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static const uptr kMetaShadowEnd = 0x340000000000ull;
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static const uptr kShadowBeg = 0x010000000000ull;
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static const uptr kShadowEnd = 0x100000000000ull;
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static const uptr kHeapMemBeg = 0x7b0000000000ull;
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static const uptr kHeapMemEnd = 0x7c0000000000ull;
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static const uptr kLoAppMemBeg = 0x000000001000ull;
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static const uptr kLoAppMemEnd = 0x008000000000ull;
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static const uptr kMidAppMemBeg = 0x550000000000ull;
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static const uptr kMidAppMemEnd = 0x568000000000ull;
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static const uptr kHiAppMemBeg = 0x7e8000000000ull;
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static const uptr kHiAppMemEnd = 0x800000000000ull;
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static const uptr kShadowMsk = 0x780000000000ull;
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static const uptr kShadowXor = 0x040000000000ull;
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static const uptr kShadowAdd = 0x000000000000ull;
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static const uptr kVdsoBeg = 0xf000000000000000ull;
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};
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/*
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C/C++ on linux/mips64 (40-bit VMA)
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0000 0000 00 - 0100 0000 00: - (4 GB)
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0100 0000 00 - 0200 0000 00: main binary (4 GB)
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0200 0000 00 - 1200 0000 00: - (64 GB)
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1200 0000 00 - 2200 0000 00: shadow (64 GB)
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2200 0000 00 - 4000 0000 00: - (120 GB)
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4000 0000 00 - 5000 0000 00: metainfo (memory blocks and sync objects) (64 GB)
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5000 0000 00 - aa00 0000 00: - (360 GB)
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aa00 0000 00 - ab00 0000 00: main binary (PIE) (4 GB)
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ab00 0000 00 - fe00 0000 00: - (332 GB)
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fe00 0000 00 - ff00 0000 00: heap (4 GB)
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ff00 0000 00 - ff80 0000 00: - (2 GB)
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ff80 0000 00 - ffff ffff ff: modules and main thread stack (<2 GB)
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*/
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struct MappingMips64_40 {
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static const uptr kMetaShadowBeg = 0x4000000000ull;
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static const uptr kMetaShadowEnd = 0x5000000000ull;
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static const uptr kShadowBeg = 0x1200000000ull;
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static const uptr kShadowEnd = 0x2200000000ull;
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static const uptr kHeapMemBeg = 0xfe00000000ull;
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static const uptr kHeapMemEnd = 0xff00000000ull;
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static const uptr kLoAppMemBeg = 0x0100000000ull;
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static const uptr kLoAppMemEnd = 0x0200000000ull;
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static const uptr kMidAppMemBeg = 0xaa00000000ull;
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static const uptr kMidAppMemEnd = 0xab00000000ull;
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static const uptr kHiAppMemBeg = 0xff80000000ull;
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static const uptr kHiAppMemEnd = 0xffffffffffull;
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static const uptr kShadowMsk = 0xf800000000ull;
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static const uptr kShadowXor = 0x0800000000ull;
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static const uptr kShadowAdd = 0x0000000000ull;
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static const uptr kVdsoBeg = 0xfffff00000ull;
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};
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/*
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C/C++ on Darwin/iOS/ARM64 (36-bit VMA, 64 GB VM)
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0000 0000 00 - 0100 0000 00: - (4 GB)
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0100 0000 00 - 0200 0000 00: main binary, modules, thread stacks (4 GB)
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0200 0000 00 - 0300 0000 00: heap (4 GB)
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0300 0000 00 - 0400 0000 00: - (4 GB)
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0400 0000 00 - 0800 0000 00: shadow memory (16 GB)
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0800 0000 00 - 0d00 0000 00: - (20 GB)
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0d00 0000 00 - 0e00 0000 00: metainfo (4 GB)
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0e00 0000 00 - 1000 0000 00: -
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*/
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struct MappingAppleAarch64 {
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static const uptr kLoAppMemBeg = 0x0100000000ull;
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static const uptr kLoAppMemEnd = 0x0200000000ull;
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static const uptr kHeapMemBeg = 0x0200000000ull;
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static const uptr kHeapMemEnd = 0x0300000000ull;
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static const uptr kShadowBeg = 0x0400000000ull;
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static const uptr kShadowEnd = 0x0800000000ull;
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static const uptr kMetaShadowBeg = 0x0d00000000ull;
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static const uptr kMetaShadowEnd = 0x0e00000000ull;
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static const uptr kHiAppMemBeg = 0x0fc0000000ull;
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static const uptr kHiAppMemEnd = 0x0fc0000000ull;
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static const uptr kShadowMsk = 0x0ull;
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static const uptr kShadowXor = 0x0ull;
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static const uptr kShadowAdd = 0x0200000000ull;
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static const uptr kVdsoBeg = 0x7000000000000000ull;
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static const uptr kMidAppMemBeg = 0;
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static const uptr kMidAppMemEnd = 0;
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};
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/*
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C/C++ on linux/aarch64 (39-bit VMA)
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0000 0010 00 - 0100 0000 00: main binary
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0100 0000 00 - 0400 0000 00: -
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0400 0000 00 - 1000 0000 00: shadow memory
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2000 0000 00 - 3100 0000 00: -
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3100 0000 00 - 3400 0000 00: metainfo
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3400 0000 00 - 5500 0000 00: -
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5500 0000 00 - 5600 0000 00: main binary (PIE)
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5600 0000 00 - 7c00 0000 00: -
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7c00 0000 00 - 7d00 0000 00: heap
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7d00 0000 00 - 7fff ffff ff: modules and main thread stack
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*/
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struct MappingAarch64_39 {
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static const uptr kLoAppMemBeg = 0x0000001000ull;
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static const uptr kLoAppMemEnd = 0x0100000000ull;
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static const uptr kShadowBeg = 0x0400000000ull;
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static const uptr kShadowEnd = 0x1000000000ull;
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static const uptr kMetaShadowBeg = 0x3100000000ull;
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static const uptr kMetaShadowEnd = 0x3400000000ull;
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static const uptr kMidAppMemBeg = 0x5500000000ull;
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static const uptr kMidAppMemEnd = 0x5600000000ull;
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static const uptr kHeapMemBeg = 0x7c00000000ull;
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static const uptr kHeapMemEnd = 0x7d00000000ull;
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static const uptr kHiAppMemBeg = 0x7e00000000ull;
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static const uptr kHiAppMemEnd = 0x7fffffffffull;
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static const uptr kShadowMsk = 0x7800000000ull;
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static const uptr kShadowXor = 0x0200000000ull;
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static const uptr kShadowAdd = 0x0000000000ull;
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static const uptr kVdsoBeg = 0x7f00000000ull;
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};
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/*
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C/C++ on linux/aarch64 (42-bit VMA)
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00000 0010 00 - 01000 0000 00: main binary
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01000 0000 00 - 08000 0000 00: -
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08000 0000 00 - 10000 0000 00: shadow memory
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10000 0000 00 - 26000 0000 00: -
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26000 0000 00 - 28000 0000 00: metainfo
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28000 0000 00 - 2aa00 0000 00: -
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2aa00 0000 00 - 2ab00 0000 00: main binary (PIE)
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2ab00 0000 00 - 3e000 0000 00: -
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3e000 0000 00 - 3f000 0000 00: heap
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3f000 0000 00 - 3ffff ffff ff: modules and main thread stack
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*/
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struct MappingAarch64_42 {
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static const uptr kBroken = kBrokenReverseMapping;
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static const uptr kLoAppMemBeg = 0x00000001000ull;
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static const uptr kLoAppMemEnd = 0x01000000000ull;
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static const uptr kShadowBeg = 0x08000000000ull;
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static const uptr kShadowEnd = 0x10000000000ull;
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static const uptr kMetaShadowBeg = 0x26000000000ull;
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static const uptr kMetaShadowEnd = 0x28000000000ull;
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static const uptr kMidAppMemBeg = 0x2aa00000000ull;
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static const uptr kMidAppMemEnd = 0x2ab00000000ull;
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static const uptr kHeapMemBeg = 0x3e000000000ull;
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static const uptr kHeapMemEnd = 0x3f000000000ull;
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static const uptr kHiAppMemBeg = 0x3f000000000ull;
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static const uptr kHiAppMemEnd = 0x3ffffffffffull;
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static const uptr kShadowMsk = 0x3c000000000ull;
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static const uptr kShadowXor = 0x04000000000ull;
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static const uptr kShadowAdd = 0x00000000000ull;
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static const uptr kVdsoBeg = 0x37f00000000ull;
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};
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struct MappingAarch64_48 {
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static const uptr kLoAppMemBeg = 0x0000000001000ull;
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static const uptr kLoAppMemEnd = 0x0000200000000ull;
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static const uptr kShadowBeg = 0x0001000000000ull;
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static const uptr kShadowEnd = 0x0002000000000ull;
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static const uptr kMetaShadowBeg = 0x0005000000000ull;
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static const uptr kMetaShadowEnd = 0x0006000000000ull;
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static const uptr kMidAppMemBeg = 0x0aaaa00000000ull;
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static const uptr kMidAppMemEnd = 0x0aaaf00000000ull;
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static const uptr kHeapMemBeg = 0x0ffff00000000ull;
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static const uptr kHeapMemEnd = 0x0ffff00000000ull;
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static const uptr kHiAppMemBeg = 0x0ffff00000000ull;
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static const uptr kHiAppMemEnd = 0x1000000000000ull;
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static const uptr kShadowMsk = 0x0fff800000000ull;
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static const uptr kShadowXor = 0x0000800000000ull;
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static const uptr kShadowAdd = 0x0000000000000ull;
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static const uptr kVdsoBeg = 0xffff000000000ull;
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};
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/*
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C/C++ on linux/powerpc64 (44-bit VMA)
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0000 0000 0100 - 0001 0000 0000: main binary
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0001 0000 0000 - 0001 0000 0000: -
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0001 0000 0000 - 0b00 0000 0000: shadow
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0b00 0000 0000 - 0b00 0000 0000: -
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0b00 0000 0000 - 0d00 0000 0000: metainfo (memory blocks and sync objects)
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0d00 0000 0000 - 0f00 0000 0000: -
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0f00 0000 0000 - 0f50 0000 0000: heap
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0f50 0000 0000 - 0f60 0000 0000: -
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0f60 0000 0000 - 1000 0000 0000: modules and main thread stack
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*/
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struct MappingPPC64_44 {
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static const uptr kBroken =
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kBrokenMapping | kBrokenReverseMapping | kBrokenLinearity;
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static const uptr kMetaShadowBeg = 0x0b0000000000ull;
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static const uptr kMetaShadowEnd = 0x0d0000000000ull;
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static const uptr kShadowBeg = 0x000100000000ull;
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static const uptr kShadowEnd = 0x0b0000000000ull;
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static const uptr kLoAppMemBeg = 0x000000000100ull;
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static const uptr kLoAppMemEnd = 0x000100000000ull;
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static const uptr kHeapMemBeg = 0x0f0000000000ull;
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static const uptr kHeapMemEnd = 0x0f5000000000ull;
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static const uptr kHiAppMemBeg = 0x0f6000000000ull;
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static const uptr kHiAppMemEnd = 0x100000000000ull; // 44 bits
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static const uptr kShadowMsk = 0x0f0000000000ull;
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static const uptr kShadowXor = 0x002100000000ull;
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static const uptr kShadowAdd = 0x000000000000ull;
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static const uptr kVdsoBeg = 0x3c0000000000000ull;
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static const uptr kMidAppMemBeg = 0;
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static const uptr kMidAppMemEnd = 0;
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};
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/*
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C/C++ on linux/powerpc64 (46-bit VMA)
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0000 0000 1000 - 0100 0000 0000: main binary
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0100 0000 0000 - 0200 0000 0000: -
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0100 0000 0000 - 0800 0000 0000: shadow
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0800 0000 0000 - 1000 0000 0000: -
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1000 0000 0000 - 1200 0000 0000: metainfo (memory blocks and sync objects)
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1200 0000 0000 - 3d00 0000 0000: -
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3d00 0000 0000 - 3e00 0000 0000: heap
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3e00 0000 0000 - 3e80 0000 0000: -
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3e80 0000 0000 - 4000 0000 0000: modules and main thread stack
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*/
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struct MappingPPC64_46 {
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static const uptr kMetaShadowBeg = 0x100000000000ull;
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static const uptr kMetaShadowEnd = 0x120000000000ull;
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static const uptr kShadowBeg = 0x010000000000ull;
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static const uptr kShadowEnd = 0x080000000000ull;
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static const uptr kHeapMemBeg = 0x3d0000000000ull;
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static const uptr kHeapMemEnd = 0x3e0000000000ull;
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static const uptr kLoAppMemBeg = 0x000000001000ull;
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static const uptr kLoAppMemEnd = 0x010000000000ull;
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static const uptr kHiAppMemBeg = 0x3e8000000000ull;
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static const uptr kHiAppMemEnd = 0x400000000000ull; // 46 bits
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static const uptr kShadowMsk = 0x3c0000000000ull;
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static const uptr kShadowXor = 0x020000000000ull;
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static const uptr kShadowAdd = 0x000000000000ull;
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static const uptr kVdsoBeg = 0x7800000000000000ull;
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static const uptr kMidAppMemBeg = 0;
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static const uptr kMidAppMemEnd = 0;
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};
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/*
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C/C++ on linux/powerpc64 (47-bit VMA)
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0000 0000 1000 - 0100 0000 0000: main binary
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0100 0000 0000 - 0200 0000 0000: -
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0100 0000 0000 - 0800 0000 0000: shadow
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0800 0000 0000 - 1000 0000 0000: -
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1000 0000 0000 - 1200 0000 0000: metainfo (memory blocks and sync objects)
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1200 0000 0000 - 7d00 0000 0000: -
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7d00 0000 0000 - 7e00 0000 0000: heap
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7e00 0000 0000 - 7e80 0000 0000: -
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7e80 0000 0000 - 8000 0000 0000: modules and main thread stack
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*/
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struct MappingPPC64_47 {
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static const uptr kMetaShadowBeg = 0x100000000000ull;
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static const uptr kMetaShadowEnd = 0x120000000000ull;
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static const uptr kShadowBeg = 0x010000000000ull;
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static const uptr kShadowEnd = 0x080000000000ull;
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static const uptr kHeapMemBeg = 0x7d0000000000ull;
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static const uptr kHeapMemEnd = 0x7e0000000000ull;
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static const uptr kLoAppMemBeg = 0x000000001000ull;
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static const uptr kLoAppMemEnd = 0x010000000000ull;
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static const uptr kHiAppMemBeg = 0x7e8000000000ull;
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static const uptr kHiAppMemEnd = 0x800000000000ull; // 47 bits
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static const uptr kShadowMsk = 0x7c0000000000ull;
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static const uptr kShadowXor = 0x020000000000ull;
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static const uptr kShadowAdd = 0x000000000000ull;
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static const uptr kVdsoBeg = 0x7800000000000000ull;
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static const uptr kMidAppMemBeg = 0;
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static const uptr kMidAppMemEnd = 0;
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};
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/*
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C/C++ on linux/s390x
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While the kernel provides a 64-bit address space, we have to restrict ourselves
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to 48 bits due to how e.g. SyncVar::GetId() works.
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0000 0000 1000 - 0e00 0000 0000: binary, modules, stacks - 14 TiB
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0e00 0000 0000 - 2000 0000 0000: -
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2000 0000 0000 - 4000 0000 0000: shadow - 32TiB (2 * app)
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4000 0000 0000 - 9000 0000 0000: -
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9000 0000 0000 - 9800 0000 0000: metainfo - 8TiB (0.5 * app)
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9800 0000 0000 - be00 0000 0000: -
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be00 0000 0000 - c000 0000 0000: heap - 2TiB (max supported by the allocator)
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*/
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struct MappingS390x {
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static const uptr kMetaShadowBeg = 0x900000000000ull;
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static const uptr kMetaShadowEnd = 0x980000000000ull;
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static const uptr kShadowBeg = 0x200000000000ull;
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static const uptr kShadowEnd = 0x400000000000ull;
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static const uptr kHeapMemBeg = 0xbe0000000000ull;
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static const uptr kHeapMemEnd = 0xc00000000000ull;
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static const uptr kLoAppMemBeg = 0x000000001000ull;
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static const uptr kLoAppMemEnd = 0x0e0000000000ull;
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static const uptr kHiAppMemBeg = 0xc00000004000ull;
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static const uptr kHiAppMemEnd = 0xc00000004000ull;
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static const uptr kShadowMsk = 0xb00000000000ull;
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static const uptr kShadowXor = 0x100000000000ull;
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static const uptr kShadowAdd = 0x000000000000ull;
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static const uptr kVdsoBeg = 0xfffffffff000ull;
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static const uptr kMidAppMemBeg = 0;
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static const uptr kMidAppMemEnd = 0;
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};
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/* Go on linux, darwin and freebsd on x86_64
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0000 0000 1000 - 0000 1000 0000: executable
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0000 1000 0000 - 00c0 0000 0000: -
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00c0 0000 0000 - 00e0 0000 0000: heap
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00e0 0000 0000 - 2000 0000 0000: -
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2000 0000 0000 - 21c0 0000 0000: shadow
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21c0 0000 0000 - 3000 0000 0000: -
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3000 0000 0000 - 4000 0000 0000: metainfo (memory blocks and sync objects)
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4000 0000 0000 - 8000 0000 0000: -
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*/
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struct MappingGo48 {
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static const uptr kMetaShadowBeg = 0x300000000000ull;
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static const uptr kMetaShadowEnd = 0x400000000000ull;
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static const uptr kShadowBeg = 0x200000000000ull;
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static const uptr kShadowEnd = 0x21c000000000ull;
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static const uptr kLoAppMemBeg = 0x000000001000ull;
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static const uptr kLoAppMemEnd = 0x00e000000000ull;
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static const uptr kMidAppMemBeg = 0;
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static const uptr kMidAppMemEnd = 0;
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static const uptr kHiAppMemBeg = 0;
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static const uptr kHiAppMemEnd = 0;
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static const uptr kHeapMemBeg = 0;
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static const uptr kHeapMemEnd = 0;
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static const uptr kVdsoBeg = 0;
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static const uptr kShadowMsk = 0;
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static const uptr kShadowXor = 0;
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static const uptr kShadowAdd = 0x200000000000ull;
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};
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/* Go on windows
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0000 0000 1000 - 0000 1000 0000: executable
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0000 1000 0000 - 00f8 0000 0000: -
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00c0 0000 0000 - 00e0 0000 0000: heap
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00e0 0000 0000 - 0100 0000 0000: -
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0100 0000 0000 - 0300 0000 0000: shadow
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0300 0000 0000 - 0700 0000 0000: -
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0700 0000 0000 - 0770 0000 0000: metainfo (memory blocks and sync objects)
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07d0 0000 0000 - 8000 0000 0000: -
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*/
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|
|
|
struct MappingGoWindows {
|
|
static const uptr kMetaShadowBeg = 0x070000000000ull;
|
|
static const uptr kMetaShadowEnd = 0x077000000000ull;
|
|
static const uptr kShadowBeg = 0x010000000000ull;
|
|
static const uptr kShadowEnd = 0x030000000000ull;
|
|
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 - 21c0 0000 0000: shadow
|
|
21c0 0000 0000 - 2400 0000 0000: -
|
|
2400 0000 0000 - 2470 0000 0000: metainfo (memory blocks and sync objects)
|
|
2470 0000 0000 - 4000 0000 0000: -
|
|
*/
|
|
|
|
struct MappingGoPPC64_46 {
|
|
static const uptr kMetaShadowBeg = 0x240000000000ull;
|
|
static const uptr kMetaShadowEnd = 0x247000000000ull;
|
|
static const uptr kShadowBeg = 0x200000000000ull;
|
|
static const uptr kShadowEnd = 0x21c000000000ull;
|
|
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 - 2800 0000 0000: shadow
|
|
2800 0000 0000 - 3000 0000 0000: -
|
|
3000 0000 0000 - 3200 0000 0000: metainfo (memory blocks and sync objects)
|
|
3200 0000 0000 - 8000 0000 0000: -
|
|
*/
|
|
|
|
struct MappingGoPPC64_47 {
|
|
static const uptr kMetaShadowBeg = 0x300000000000ull;
|
|
static const uptr kMetaShadowEnd = 0x320000000000ull;
|
|
static const uptr kShadowBeg = 0x200000000000ull;
|
|
static const uptr kShadowEnd = 0x280000000000ull;
|
|
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 - 2800 0000 0000: shadow
|
|
2800 0000 0000 - 3000 0000 0000: -
|
|
3000 0000 0000 - 3200 0000 0000: metainfo (memory blocks and sync objects)
|
|
3200 0000 0000 - 8000 0000 0000: -
|
|
*/
|
|
struct MappingGoAarch64 {
|
|
static const uptr kMetaShadowBeg = 0x300000000000ull;
|
|
static const uptr kMetaShadowEnd = 0x320000000000ull;
|
|
static const uptr kShadowBeg = 0x200000000000ull;
|
|
static const uptr kShadowEnd = 0x280000000000ull;
|
|
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 - 2800 0000 0000: shadow
|
|
2800 0000 0000 - 3000 0000 0000: -
|
|
3000 0000 0000 - 3200 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 = 0x320000000000ull;
|
|
static const uptr kShadowBeg = 0x200000000000ull;
|
|
static const uptr kShadowEnd = 0x280000000000ull;
|
|
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 - 6000 0000 0000: shadow - 64TiB (4 * app)
|
|
6000 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 = 0x600000000000ull;
|
|
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 SANITIZER_IOS && !SANITIZER_IOSSIM
|
|
return Func::template Apply<MappingAppleAarch64>(arg);
|
|
# elif defined(__x86_64__) || SANITIZER_MAC
|
|
return Func::template Apply<Mapping48AddressSpace>(arg);
|
|
# elif defined(__aarch64__)
|
|
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.
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// This is called only during reporting and is not performance-critical.
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inline uptr RestoreAddr(uptr addr) {
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return SelectMapping<RestoreAddrImpl>(addr);
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}
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void InitializePlatform();
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void InitializePlatformEarly();
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void CheckAndProtect();
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void InitializeShadowMemoryPlatform();
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void WriteMemoryProfile(char *buf, uptr buf_size, u64 uptime_ns);
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int ExtractResolvFDs(void *state, int *fds, int nfd);
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int ExtractRecvmsgFDs(void *msg, int *fds, int nfd);
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uptr ExtractLongJmpSp(uptr *env);
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void ImitateTlsWrite(ThreadState *thr, uptr tls_addr, uptr tls_size);
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int call_pthread_cancel_with_cleanup(int (*fn)(void *arg),
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void (*cleanup)(void *arg), void *arg);
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void DestroyThreadState();
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void PlatformCleanUpThreadState(ThreadState *thr);
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} // namespace __tsan
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#endif // TSAN_PLATFORM_H
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