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