1//===-- tsan_rtl_proc.cc ------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file is a part of ThreadSanitizer (TSan), a race detector. 11// 12//===----------------------------------------------------------------------===// 13 14#include "sanitizer_common/sanitizer_placement_new.h" 15#include "tsan_rtl.h" 16#include "tsan_mman.h" 17#include "tsan_flags.h" 18 19namespace __tsan { 20 21Processor *ProcCreate() { 22 void *mem = InternalAlloc(sizeof(Processor)); 23 internal_memset(mem, 0, sizeof(Processor)); 24 Processor *proc = new(mem) Processor; 25 proc->thr = nullptr; 26#if !SANITIZER_GO 27 AllocatorProcStart(proc); 28#endif 29 if (common_flags()->detect_deadlocks) 30 proc->dd_pt = ctx->dd->CreatePhysicalThread(); 31 return proc; 32} 33 34void ProcDestroy(Processor *proc) { 35 CHECK_EQ(proc->thr, nullptr); 36#if !SANITIZER_GO 37 AllocatorProcFinish(proc); 38#endif 39 ctx->clock_alloc.FlushCache(&proc->clock_cache); 40 ctx->metamap.OnProcIdle(proc); 41 if (common_flags()->detect_deadlocks) 42 ctx->dd->DestroyPhysicalThread(proc->dd_pt); 43 proc->~Processor(); 44 InternalFree(proc); 45} 46 47void ProcWire(Processor *proc, ThreadState *thr) { 48 CHECK_EQ(thr->proc1, nullptr); 49 CHECK_EQ(proc->thr, nullptr); 50 thr->proc1 = proc; 51 proc->thr = thr; 52} 53 54void ProcUnwire(Processor *proc, ThreadState *thr) { 55 CHECK_EQ(thr->proc1, proc); 56 CHECK_EQ(proc->thr, thr); 57 thr->proc1 = nullptr; 58 proc->thr = nullptr; 59} 60 61} // namespace __tsan 62