60 lines · cpp
1//===-- tsan_rtl_proc.cpp -----------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This file is a part of ThreadSanitizer (TSan), a race detector.10//11//===----------------------------------------------------------------------===//12 13#include "sanitizer_common/sanitizer_placement_new.h"14#include "tsan_rtl.h"15#include "tsan_mman.h"16#include "tsan_flags.h"17 18namespace __tsan {19 20Processor *ProcCreate() {21 void *mem = InternalAlloc(sizeof(Processor));22 internal_memset(mem, 0, sizeof(Processor));23 Processor *proc = new(mem) Processor;24 proc->thr = nullptr;25#if !SANITIZER_GO26 AllocatorProcStart(proc);27#endif28 if (common_flags()->detect_deadlocks)29 proc->dd_pt = ctx->dd->CreatePhysicalThread();30 return proc;31}32 33void ProcDestroy(Processor *proc) {34 CHECK_EQ(proc->thr, nullptr);35#if !SANITIZER_GO36 AllocatorProcFinish(proc);37#endif38 ctx->metamap.OnProcIdle(proc);39 if (common_flags()->detect_deadlocks)40 ctx->dd->DestroyPhysicalThread(proc->dd_pt);41 proc->~Processor();42 InternalFree(proc);43}44 45void ProcWire(Processor *proc, ThreadState *thr) {46 CHECK_EQ(thr->proc1, nullptr);47 CHECK_EQ(proc->thr, nullptr);48 thr->proc1 = proc;49 proc->thr = thr;50}51 52void ProcUnwire(Processor *proc, ThreadState *thr) {53 CHECK_EQ(thr->proc1, proc);54 CHECK_EQ(proc->thr, thr);55 thr->proc1 = nullptr;56 proc->thr = nullptr;57}58 59} // namespace __tsan60