mirror of
https://github.com/autc04/Retro68.git
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361 lines
11 KiB
C++
361 lines
11 KiB
C++
//===-- tsan_platform.h -----------------------------------------*- C++ -*-===//
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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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 "tsan_defs.h"
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#include "tsan_trace.h"
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namespace __tsan {
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#if !defined(SANITIZER_GO)
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#if defined(__x86_64__)
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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 - 0100 0000 0000: main binary and/or MAP_32BIT mappings
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0100 0000 0000 - 0200 0000 0000: -
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0200 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 - 6000 0000 0000: -
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6000 0000 0000 - 6200 0000 0000: traces
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6200 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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const uptr kMetaShadowBeg = 0x300000000000ull;
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const uptr kMetaShadowEnd = 0x400000000000ull;
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const uptr kTraceMemBeg = 0x600000000000ull;
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const uptr kTraceMemEnd = 0x620000000000ull;
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const uptr kShadowBeg = 0x020000000000ull;
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const uptr kShadowEnd = 0x100000000000ull;
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const uptr kHeapMemBeg = 0x7d0000000000ull;
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const uptr kHeapMemEnd = 0x7e0000000000ull;
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const uptr kLoAppMemBeg = 0x000000001000ull;
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const uptr kLoAppMemEnd = 0x010000000000ull;
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const uptr kHiAppMemBeg = 0x7e8000000000ull;
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const uptr kHiAppMemEnd = 0x800000000000ull;
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const uptr kAppMemMsk = 0x7c0000000000ull;
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const uptr kAppMemXor = 0x020000000000ull;
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const uptr kVdsoBeg = 0xf000000000000000ull;
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#elif defined(__mips64)
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/*
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C/C++ on linux/mips64
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0100 0000 00 - 0200 0000 00: main binary
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0200 0000 00 - 1400 0000 00: -
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1400 0000 00 - 2400 0000 00: shadow
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2400 0000 00 - 3000 0000 00: -
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3000 0000 00 - 4000 0000 00: metainfo (memory blocks and sync objects)
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4000 0000 00 - 6000 0000 00: -
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6000 0000 00 - 6200 0000 00: traces
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6200 0000 00 - fe00 0000 00: -
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fe00 0000 00 - ff00 0000 00: heap
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ff00 0000 00 - ff80 0000 00: -
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ff80 0000 00 - ffff ffff ff: modules and main thread stack
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*/
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const uptr kMetaShadowBeg = 0x3000000000ull;
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const uptr kMetaShadowEnd = 0x4000000000ull;
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const uptr kTraceMemBeg = 0x6000000000ull;
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const uptr kTraceMemEnd = 0x6200000000ull;
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const uptr kShadowBeg = 0x1400000000ull;
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const uptr kShadowEnd = 0x2400000000ull;
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const uptr kHeapMemBeg = 0xfe00000000ull;
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const uptr kHeapMemEnd = 0xff00000000ull;
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const uptr kLoAppMemBeg = 0x0100000000ull;
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const uptr kLoAppMemEnd = 0x0200000000ull;
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const uptr kHiAppMemBeg = 0xff80000000ull;
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const uptr kHiAppMemEnd = 0xffffffffffull;
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const uptr kAppMemMsk = 0xfc00000000ull;
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const uptr kAppMemXor = 0x0400000000ull;
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const uptr kVdsoBeg = 0xfffff00000ull;
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#elif defined(__aarch64__)
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# if SANITIZER_AARCH64_VMA == 39
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/*
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C/C++ on linux/aarch64 (39-bit VMA)
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0000 4000 00 - 0200 0000 00: main binary
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2000 0000 00 - 4000 0000 00: shadow memory
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4000 0000 00 - 5000 0000 00: metainfo
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5000 0000 00 - 6000 0000 00: -
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6000 0000 00 - 6200 0000 00: traces
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6200 0000 00 - 7d00 0000 00: -
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7d00 0000 00 - 7e00 0000 00: heap
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7e00 0000 00 - 7fff ffff ff: modules and main thread stack
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*/
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const uptr kLoAppMemBeg = 0x0000400000ull;
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const uptr kLoAppMemEnd = 0x0200000000ull;
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const uptr kShadowBeg = 0x2000000000ull;
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const uptr kShadowEnd = 0x4000000000ull;
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const uptr kMetaShadowBeg = 0x4000000000ull;
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const uptr kMetaShadowEnd = 0x5000000000ull;
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const uptr kTraceMemBeg = 0x6000000000ull;
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const uptr kTraceMemEnd = 0x6200000000ull;
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const uptr kHeapMemBeg = 0x7d00000000ull;
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const uptr kHeapMemEnd = 0x7e00000000ull;
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const uptr kHiAppMemBeg = 0x7e00000000ull;
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const uptr kHiAppMemEnd = 0x7fffffffffull;
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const uptr kAppMemMsk = 0x7800000000ull;
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const uptr kAppMemXor = 0x0800000000ull;
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const uptr kVdsoBeg = 0x7f00000000ull;
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# elif SANITIZER_AARCH64_VMA == 42
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/*
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C/C++ on linux/aarch64 (42-bit VMA)
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00000 4000 00 - 01000 0000 00: main binary
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01000 0000 00 - 10000 0000 00: -
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10000 0000 00 - 20000 0000 00: shadow memory
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20000 0000 00 - 26000 0000 00: -
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26000 0000 00 - 28000 0000 00: metainfo
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28000 0000 00 - 36200 0000 00: -
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36200 0000 00 - 36240 0000 00: traces
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36240 0000 00 - 3e000 0000 00: -
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3e000 0000 00 - 3f000 0000 00: heap
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3c000 0000 00 - 3ff00 0000 00: -
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3ff00 0000 00 - 3ffff f000 00: modules and main thread stack
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*/
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const uptr kLoAppMemBeg = 0x00000400000ull;
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const uptr kLoAppMemEnd = 0x01000000000ull;
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const uptr kShadowBeg = 0x10000000000ull;
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const uptr kShadowEnd = 0x20000000000ull;
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const uptr kMetaShadowBeg = 0x26000000000ull;
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const uptr kMetaShadowEnd = 0x28000000000ull;
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const uptr kTraceMemBeg = 0x36200000000ull;
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const uptr kTraceMemEnd = 0x36400000000ull;
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const uptr kHeapMemBeg = 0x3e000000000ull;
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const uptr kHeapMemEnd = 0x3f000000000ull;
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const uptr kHiAppMemBeg = 0x3ff00000000ull;
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const uptr kHiAppMemEnd = 0x3fffff00000ull;
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const uptr kAppMemMsk = 0x3c000000000ull;
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const uptr kAppMemXor = 0x04000000000ull;
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const uptr kVdsoBeg = 0x37f00000000ull;
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# endif
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#endif
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ALWAYS_INLINE
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bool IsAppMem(uptr mem) {
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return (mem >= kHeapMemBeg && mem < kHeapMemEnd) ||
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(mem >= kLoAppMemBeg && mem < kLoAppMemEnd) ||
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(mem >= kHiAppMemBeg && mem < kHiAppMemEnd);
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}
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ALWAYS_INLINE
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bool IsShadowMem(uptr mem) {
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return mem >= kShadowBeg && mem <= kShadowEnd;
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}
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ALWAYS_INLINE
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bool IsMetaMem(uptr mem) {
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return mem >= kMetaShadowBeg && mem <= kMetaShadowEnd;
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}
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ALWAYS_INLINE
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uptr MemToShadow(uptr x) {
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DCHECK(IsAppMem(x));
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return (((x) & ~(kAppMemMsk | (kShadowCell - 1)))
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^ kAppMemXor) * kShadowCnt;
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}
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ALWAYS_INLINE
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u32 *MemToMeta(uptr x) {
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DCHECK(IsAppMem(x));
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return (u32*)(((((x) & ~(kAppMemMsk | (kMetaShadowCell - 1)))
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^ kAppMemXor) / kMetaShadowCell * kMetaShadowSize) | kMetaShadowBeg);
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}
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ALWAYS_INLINE
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uptr ShadowToMem(uptr s) {
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CHECK(IsShadowMem(s));
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if (s >= MemToShadow(kLoAppMemBeg) && s <= MemToShadow(kLoAppMemEnd - 1))
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return (s / kShadowCnt) ^ kAppMemXor;
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else
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return ((s / kShadowCnt) ^ kAppMemXor) | kAppMemMsk;
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}
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static USED uptr UserRegions[] = {
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kLoAppMemBeg, kLoAppMemEnd,
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kHiAppMemBeg, kHiAppMemEnd,
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kHeapMemBeg, kHeapMemEnd,
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};
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#elif defined(SANITIZER_GO) && !SANITIZER_WINDOWS
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/* Go on linux, darwin and freebsd
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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 - 2380 0000 0000: shadow
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2380 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 - 6000 0000 0000: -
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6000 0000 0000 - 6200 0000 0000: traces
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6200 0000 0000 - 8000 0000 0000: -
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*/
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const uptr kMetaShadowBeg = 0x300000000000ull;
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const uptr kMetaShadowEnd = 0x400000000000ull;
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const uptr kTraceMemBeg = 0x600000000000ull;
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const uptr kTraceMemEnd = 0x620000000000ull;
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const uptr kShadowBeg = 0x200000000000ull;
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const uptr kShadowEnd = 0x238000000000ull;
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const uptr kAppMemBeg = 0x000000001000ull;
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const uptr kAppMemEnd = 0x00e000000000ull;
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ALWAYS_INLINE
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bool IsAppMem(uptr mem) {
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return mem >= kAppMemBeg && mem < kAppMemEnd;
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}
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ALWAYS_INLINE
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bool IsShadowMem(uptr mem) {
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return mem >= kShadowBeg && mem <= kShadowEnd;
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}
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ALWAYS_INLINE
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bool IsMetaMem(uptr mem) {
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return mem >= kMetaShadowBeg && mem <= kMetaShadowEnd;
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}
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ALWAYS_INLINE
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uptr MemToShadow(uptr x) {
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DCHECK(IsAppMem(x));
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return ((x & ~(kShadowCell - 1)) * kShadowCnt) | kShadowBeg;
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}
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ALWAYS_INLINE
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u32 *MemToMeta(uptr x) {
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DCHECK(IsAppMem(x));
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return (u32*)(((x & ~(kMetaShadowCell - 1)) / \
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kMetaShadowCell * kMetaShadowSize) | kMetaShadowBeg);
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}
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ALWAYS_INLINE
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uptr ShadowToMem(uptr s) {
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CHECK(IsShadowMem(s));
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return (s & ~kShadowBeg) / kShadowCnt;
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}
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static USED uptr UserRegions[] = {
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kAppMemBeg, kAppMemEnd,
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};
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#elif defined(SANITIZER_GO) && SANITIZER_WINDOWS
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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 - 0500 0000 0000: shadow
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0500 0000 0000 - 0560 0000 0000: -
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0560 0000 0000 - 0760 0000 0000: traces
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0760 0000 0000 - 07d0 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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const uptr kMetaShadowBeg = 0x076000000000ull;
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const uptr kMetaShadowEnd = 0x07d000000000ull;
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const uptr kTraceMemBeg = 0x056000000000ull;
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const uptr kTraceMemEnd = 0x076000000000ull;
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const uptr kShadowBeg = 0x010000000000ull;
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const uptr kShadowEnd = 0x050000000000ull;
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const uptr kAppMemBeg = 0x000000001000ull;
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const uptr kAppMemEnd = 0x00e000000000ull;
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ALWAYS_INLINE
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bool IsAppMem(uptr mem) {
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return mem >= kAppMemBeg && mem < kAppMemEnd;
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}
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ALWAYS_INLINE
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bool IsShadowMem(uptr mem) {
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return mem >= kShadowBeg && mem <= kShadowEnd;
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}
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ALWAYS_INLINE
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bool IsMetaMem(uptr mem) {
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return mem >= kMetaShadowBeg && mem <= kMetaShadowEnd;
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}
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ALWAYS_INLINE
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uptr MemToShadow(uptr x) {
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DCHECK(IsAppMem(x));
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return ((x & ~(kShadowCell - 1)) * kShadowCnt) + kShadowBeg;
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}
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ALWAYS_INLINE
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u32 *MemToMeta(uptr x) {
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DCHECK(IsAppMem(x));
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return (u32*)(((x & ~(kMetaShadowCell - 1)) / \
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kMetaShadowCell * kMetaShadowSize) | kMetaShadowBeg);
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}
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ALWAYS_INLINE
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uptr ShadowToMem(uptr s) {
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CHECK(IsShadowMem(s));
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// FIXME(dvyukov): this is most likely wrong as the mapping is not bijection.
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return (s - kShadowBeg) / kShadowCnt;
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}
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static USED uptr UserRegions[] = {
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kAppMemBeg, kAppMemEnd,
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};
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#else
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# error "Unknown platform"
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#endif
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// The additional page is to catch shadow stack overflow as paging fault.
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// Windows wants 64K alignment for mmaps.
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const uptr kTotalTraceSize = (kTraceSize * sizeof(Event) + sizeof(Trace)
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+ (64 << 10) + (64 << 10) - 1) & ~((64 << 10) - 1);
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uptr ALWAYS_INLINE GetThreadTrace(int tid) {
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uptr p = kTraceMemBeg + (uptr)tid * kTotalTraceSize;
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DCHECK_LT(p, kTraceMemEnd);
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return p;
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}
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uptr ALWAYS_INLINE GetThreadTraceHeader(int tid) {
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uptr p = kTraceMemBeg + (uptr)tid * kTotalTraceSize
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+ kTraceSize * sizeof(Event);
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DCHECK_LT(p, kTraceMemEnd);
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return p;
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}
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void InitializePlatform();
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void CheckAndProtect();
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void InitializeShadowMemoryPlatform();
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void FlushShadowMemory();
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void WriteMemoryProfile(char *buf, uptr buf_size, uptr nthread, uptr nlive);
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// Says whether the addr relates to a global var.
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// Guesses with high probability, may yield both false positives and negatives.
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bool IsGlobalVar(uptr addr);
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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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int call_pthread_cancel_with_cleanup(int(*fn)(void *c, void *m,
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void *abstime), void *c, void *m, void *abstime,
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void(*cleanup)(void *arg), void *arg);
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void DestroyThreadState();
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} // namespace __tsan
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#endif // TSAN_PLATFORM_H
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