llvm-project/compiler-rt/lib/tsan/rtl-old/tsan_ignoreset.cpp
Dmitry Vyukov 8e93d4c996 tsan: fork runtime
Fork the current version of tsan runtime before commiting
rewrite of the runtime (D112603). The old runtime can be
enabled with TSAN_USE_OLD_RUNTIME option.
This is a temporal measure for emergencies and is required
for Chromium rollout (for context see http://crbug.com/1275581).
The old runtime is supposed to be deleted soon.

Reviewed By: thakis

Differential Revision: https://reviews.llvm.org/D115223
2021-12-09 07:28:26 +01:00

39 lines
981 B
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//===-- tsan_ignoreset.cpp ------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
#include "tsan_ignoreset.h"
namespace __tsan {
const uptr IgnoreSet::kMaxSize;
IgnoreSet::IgnoreSet()
: size_() {
}
void IgnoreSet::Add(StackID stack_id) {
if (size_ == kMaxSize)
return;
for (uptr i = 0; i < size_; i++) {
if (stacks_[i] == stack_id)
return;
}
stacks_[size_++] = stack_id;
}
StackID IgnoreSet::At(uptr i) const {
CHECK_LT(i, size_);
CHECK_LE(size_, kMaxSize);
return stacks_[i];
}
} // namespace __tsan