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📄 tsan.syms.extra(573 B)
📄 tsan_clock.cpp(20.28 KB)
📄 tsan_clock.h(9.25 KB)
📄 tsan_debugging.cpp(9.28 KB)
📄 tsan_defs.h(4.68 KB)
📄 tsan_dense_alloc.h(3.97 KB)
📄 tsan_dispatch_defs.h(2.18 KB)
📄 tsan_external.cpp(3.97 KB)
📄 tsan_fd.cpp(9.02 KB)
📄 tsan_fd.h(2.39 KB)
📄 tsan_flags.cpp(3.47 KB)
📄 tsan_flags.h(1.09 KB)
📄 tsan_flags.inc(4.29 KB)
📄 tsan_ignoreset.cpp(1.04 KB)
📄 tsan_ignoreset.h(958 B)
📄 tsan_interceptors.h(2.18 KB)
📄 tsan_interceptors_libdispatch.cpp(31.46 KB)
📄 tsan_interceptors_mac.cpp(20.28 KB)
📄 tsan_interceptors_mach_vm.cpp(2.02 KB)
📄 tsan_interceptors_posix.cpp(89.69 KB)
📄 tsan_interface.cpp(4.35 KB)
📄 tsan_interface.h(17.5 KB)
📄 tsan_interface_ann.cpp(16.46 KB)
📄 tsan_interface_ann.h(1.02 KB)
📄 tsan_interface_atomic.cpp(25.88 KB)
📄 tsan_interface_inl.h(3.53 KB)
📄 tsan_interface_java.cpp(7.89 KB)
📄 tsan_interface_java.h(4.19 KB)
📄 tsan_malloc_mac.cpp(3.45 KB)
📄 tsan_md5.cpp(6.9 KB)
📄 tsan_mman.cpp(12.08 KB)
📄 tsan_mman.h(2.61 KB)
📄 tsan_mutex.cpp(7.88 KB)
📄 tsan_mutex.h(1.92 KB)
📄 tsan_mutexset.cpp(2.01 KB)
📄 tsan_mutexset.h(1.88 KB)
📄 tsan_new_delete.cpp(6.72 KB)
📄 tsan_platform.h(33.68 KB)
📄 tsan_platform_linux.cpp(16.09 KB)
📄 tsan_platform_mac.cpp(11.81 KB)
📄 tsan_platform_posix.cpp(5.72 KB)
📄 tsan_platform_windows.cpp(922 B)
📄 tsan_ppc_regs.h(1.35 KB)
📄 tsan_preinit.cpp(1021 B)
📄 tsan_report.cpp(15.63 KB)
📄 tsan_report.h(2.79 KB)
📄 tsan_rtl.cpp(34.92 KB)
📄 tsan_rtl.h(28.13 KB)
📄 tsan_rtl_aarch64.S(5.63 KB)
📄 tsan_rtl_amd64.S(8.71 KB)
📄 tsan_rtl_mips64.S(3.69 KB)
📄 tsan_rtl_mutex.cpp(18.71 KB)
📄 tsan_rtl_ppc64.S(8.18 KB)
📄 tsan_rtl_proc.cpp(1.66 KB)
📄 tsan_rtl_report.cpp(23.51 KB)
📄 tsan_rtl_thread.cpp(13.82 KB)
📄 tsan_stack_trace.cpp(1.91 KB)
📄 tsan_stack_trace.h(1.27 KB)
📄 tsan_stat.cpp(12.23 KB)
📄 tsan_stat.h(4.22 KB)
📄 tsan_suppressions.cpp(5.42 KB)
📄 tsan_suppressions.h(1.32 KB)
📄 tsan_symbolize.cpp(3.85 KB)
📄 tsan_symbolize.h(897 B)
📄 tsan_sync.cpp(8.44 KB)
📄 tsan_sync.h(4.88 KB)
📄 tsan_trace.h(1.89 KB)
📄 tsan_update_shadow_word_inl.h(2.22 KB)

Editing: tsan_defs.h

//===-- tsan_defs.h ---------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is a part of ThreadSanitizer (TSan), a race detector.
//
//===----------------------------------------------------------------------===//

#ifndef TSAN_DEFS_H
#define TSAN_DEFS_H

#include "sanitizer_common/sanitizer_internal_defs.h"
#include "sanitizer_common/sanitizer_libc.h"
#include "tsan_stat.h"
#include "ubsan/ubsan_platform.h"

// Setup defaults for compile definitions.
#ifndef TSAN_NO_HISTORY
# define TSAN_NO_HISTORY 0
#endif

#ifndef TSAN_COLLECT_STATS
# define TSAN_COLLECT_STATS 0
#endif

#ifndef TSAN_CONTAINS_UBSAN
# if CAN_SANITIZE_UB && !SANITIZER_GO
#  define TSAN_CONTAINS_UBSAN 1
# else
#  define TSAN_CONTAINS_UBSAN 0
# endif
#endif

namespace __tsan {

const int kClkBits = 42;
const unsigned kMaxTidReuse = (1 << (64 - kClkBits)) - 1;

struct ClockElem {
  u64 epoch  : kClkBits;
  u64 reused : 64 - kClkBits;  // tid reuse count
};

struct ClockBlock {
  static const uptr kSize = 512;
  static const uptr kTableSize = kSize / sizeof(u32);
  static const uptr kClockCount = kSize / sizeof(ClockElem);
  static const uptr kRefIdx = kTableSize - 1;
  static const uptr kBlockIdx = kTableSize - 2;

union {
    u32       table[kTableSize];
    ClockElem clock[kClockCount];
  };

ClockBlock() {
  }
};

const int kTidBits = 13;
// Reduce kMaxTid by kClockCount because one slot in ClockBlock table is
// occupied by reference counter, so total number of elements we can store
// in SyncClock is kClockCount * (kTableSize - 1).
const unsigned kMaxTid = (1 << kTidBits) - ClockBlock::kClockCount;
#if !SANITIZER_GO
const unsigned kMaxTidInClock = kMaxTid * 2;  // This includes msb 'freed' bit.
#else
const unsigned kMaxTidInClock = kMaxTid;  // Go does not track freed memory.
#endif
const uptr kShadowStackSize = 64 * 1024;

// Count of shadow values in a shadow cell.
const uptr kShadowCnt = 4;

// That many user bytes are mapped onto a single shadow cell.
const uptr kShadowCell = 8;

// Size of a single shadow value (u64).
const uptr kShadowSize = 8;

// Shadow memory is kShadowMultiplier times larger than user memory.
const uptr kShadowMultiplier = kShadowSize * kShadowCnt / kShadowCell;

// That many user bytes are mapped onto a single meta shadow cell.
// Must be less or equal to minimal memory allocator alignment.
const uptr kMetaShadowCell = 8;

// Size of a single meta shadow value (u32).
const uptr kMetaShadowSize = 4;

#if TSAN_NO_HISTORY
const bool kCollectHistory = false;
#else
const bool kCollectHistory = true;
#endif

const u16 kInvalidTid = kMaxTid + 1;

// The following "build consistency" machinery ensures that all source files
// are built in the same configuration. Inconsistent builds lead to
// hard to debug crashes.
#if SANITIZER_DEBUG
void build_consistency_debug();
#else
void build_consistency_release();
#endif

#if TSAN_COLLECT_STATS
void build_consistency_stats();
#else
void build_consistency_nostats();
#endif

static inline void USED build_consistency() {
#if SANITIZER_DEBUG
  build_consistency_debug();
#else
  build_consistency_release();
#endif
#if TSAN_COLLECT_STATS
  build_consistency_stats();
#else
  build_consistency_nostats();
#endif
}

template<typename T>
T min(T a, T b) {
  return a < b ? a : b;
}

template<typename T>
T max(T a, T b) {
  return a > b ? a : b;
}

template<typename T>
T RoundUp(T p, u64 align) {
  DCHECK_EQ(align & (align - 1), 0);
  return (T)(((u64)p + align - 1) & ~(align - 1));
}

template<typename T>
T RoundDown(T p, u64 align) {
  DCHECK_EQ(align & (align - 1), 0);
  return (T)((u64)p & ~(align - 1));
}

// Zeroizes high part, returns 'bits' lsb bits.
template<typename T>
T GetLsb(T v, int bits) {
  return (T)((u64)v & ((1ull << bits) - 1));
}

struct MD5Hash {
  u64 hash[2];
  bool operator==(const MD5Hash &other) const;
};

MD5Hash md5_hash(const void *data, uptr size);

struct Processor;
struct ThreadState;
class ThreadContext;
struct Context;
struct ReportStack;
class ReportDesc;
class RegionAlloc;

// Descriptor of user's memory block.
struct MBlock {
  u64  siz : 48;
  u64  tag : 16;
  u32  stk;
  u16  tid;
};

COMPILER_CHECK(sizeof(MBlock) == 16);

enum ExternalTag : uptr {
  kExternalTagNone = 0,
  kExternalTagSwiftModifyingAccess = 1,
  kExternalTagFirstUserAvailable = 2,
  kExternalTagMax = 1024,
  // Don't set kExternalTagMax over 65,536, since MBlock only stores tags
  // as 16-bit values, see tsan_defs.h.
};

}  // namespace __tsan

#endif  // TSAN_DEFS_H

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