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Current Path: /usr/src/contrib/llvm-project/compiler-rt/lib/tsan/rtl

usr / src / contrib / llvm-project / compiler-rt / lib / tsan / rtl /

📁 ..
📄 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_update_shadow_word_inl.h

//===-- tsan_update_shadow_word_inl.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.
//
// Body of the hottest inner loop.
// If we wrap this body into a function, compilers (both gcc and clang)
// produce sligtly less efficient code.
//===----------------------------------------------------------------------===//
do {
  StatInc(thr, StatShadowProcessed);
  const unsigned kAccessSize = 1 << kAccessSizeLog;
  u64 *sp = &shadow_mem[idx];
  old = LoadShadow(sp);
  if (LIKELY(old.IsZero())) {
    StatInc(thr, StatShadowZero);
    if (!stored) {
      StoreIfNotYetStored(sp, &store_word);
      stored = true;
    }
    break;
  }
  // is the memory access equal to the previous?
  if (LIKELY(Shadow::Addr0AndSizeAreEqual(cur, old))) {
    StatInc(thr, StatShadowSameSize);
    // same thread?
    if (LIKELY(Shadow::TidsAreEqual(old, cur))) {
      StatInc(thr, StatShadowSameThread);
      if (LIKELY(old.IsRWWeakerOrEqual(kAccessIsWrite, kIsAtomic))) {
        StoreIfNotYetStored(sp, &store_word);
        stored = true;
      }
      break;
    }
    StatInc(thr, StatShadowAnotherThread);
    if (HappensBefore(old, thr)) {
      if (old.IsRWWeakerOrEqual(kAccessIsWrite, kIsAtomic)) {
        StoreIfNotYetStored(sp, &store_word);
        stored = true;
      }
      break;
    }
    if (LIKELY(old.IsBothReadsOrAtomic(kAccessIsWrite, kIsAtomic)))
      break;
    goto RACE;
  }
  // Do the memory access intersect?
  if (Shadow::TwoRangesIntersect(old, cur, kAccessSize)) {
    StatInc(thr, StatShadowIntersect);
    if (Shadow::TidsAreEqual(old, cur)) {
      StatInc(thr, StatShadowSameThread);
      break;
    }
    StatInc(thr, StatShadowAnotherThread);
    if (old.IsBothReadsOrAtomic(kAccessIsWrite, kIsAtomic))
      break;
    if (LIKELY(HappensBefore(old, thr)))
      break;
    goto RACE;
  }
  // The accesses do not intersect.
  StatInc(thr, StatShadowNotIntersect);
  break;
} while (0);

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Editing: tsan_update_shadow_word_inl.h

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