8e93d4c996
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
61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
//===-- tsan_rtl_proc.cpp -----------------------------------------------===//
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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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//===----------------------------------------------------------------------===//
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#include "sanitizer_common/sanitizer_placement_new.h"
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#include "tsan_rtl.h"
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#include "tsan_mman.h"
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#include "tsan_flags.h"
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namespace __tsan {
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Processor *ProcCreate() {
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void *mem = InternalAlloc(sizeof(Processor));
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internal_memset(mem, 0, sizeof(Processor));
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Processor *proc = new(mem) Processor;
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proc->thr = nullptr;
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#if !SANITIZER_GO
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AllocatorProcStart(proc);
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#endif
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if (common_flags()->detect_deadlocks)
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proc->dd_pt = ctx->dd->CreatePhysicalThread();
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return proc;
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}
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void ProcDestroy(Processor *proc) {
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CHECK_EQ(proc->thr, nullptr);
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#if !SANITIZER_GO
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AllocatorProcFinish(proc);
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#endif
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ctx->clock_alloc.FlushCache(&proc->clock_cache);
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ctx->metamap.OnProcIdle(proc);
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if (common_flags()->detect_deadlocks)
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ctx->dd->DestroyPhysicalThread(proc->dd_pt);
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proc->~Processor();
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InternalFree(proc);
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}
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void ProcWire(Processor *proc, ThreadState *thr) {
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CHECK_EQ(thr->proc1, nullptr);
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CHECK_EQ(proc->thr, nullptr);
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thr->proc1 = proc;
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proc->thr = thr;
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}
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void ProcUnwire(Processor *proc, ThreadState *thr) {
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CHECK_EQ(thr->proc1, proc);
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CHECK_EQ(proc->thr, thr);
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thr->proc1 = nullptr;
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proc->thr = nullptr;
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}
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} // namespace __tsan
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