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 19 namespace __tsan { 20 21 Processor *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 #ifndef 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 34 void ProcDestroy(Processor *proc) { 35 CHECK_EQ(proc->thr, nullptr); 36 #ifndef 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 47 void 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 54 void 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
