Function BTCpuThreadTerm

Source/Windows/WOW64/Module.cpp:634–681

}

void BTCpuThreadTerm(HANDLE Thread, LONG ExitCode) {
  if (!FEX::Windows::ValidateHandleAccess(Thread, THREAD_TERMINATE)) {
    return;
  }

  auto ThreadDup = FEX::Windows::DupHandle(Thread, THREAD_QUERY_INFORMATION | THREAD_SUSPEND_RESUME);

  THREAD_BASIC_INFORMATION Info;
  if (auto Err = NtQueryInformationThread(*ThreadDup, ThreadBasicInformation, &Info, sizeof(Info), nullptr); Err) {
    return;
  }

  const auto ThreadTID = reinterpret_cast<uint64_t>(Info.ClientId.UniqueThread);
  bool Self = ThreadTID == GetCurrentThreadId();
  if (!Self) {
    // If we are suspending a thread that isn't ourselves, try to suspend it first so we know internal JIT locks aren't being held.
    RtlWow64SuspendThread(*ThreadDup, NULL);
  }

  auto [Err, TLS] = GetThreadTLS(*ThreadDup);
  if (Err) {
    return;
  }

  {
    std::scoped_lock Lock(ThreadCreationMutex);
    auto it = Threads.find(ThreadTID);
    if (it == Threads.end()) {
      // Thread already terminated
      return;
    }

    Threads.erase(it);
    if (StatAllocHandler) {
      StatAllocHandler->DeallocateSlot(TLS.ThreadState()->ThreadStats);
    }
  }
  auto ThreadState = TLS.ThreadState();

  // GDT and LDT are mirrored, only free one.
  delete[] ThreadState->CurrentFrame->State.segment_arrays[FEXCore::Core::CPUState::SEGMENT_ARRAY_INDEX_GDT];

  FEX::Windows::CallRetStack::DestroyThread(ThreadState);
  CTX->DestroyThread(ThreadState);
  if (Self) {
    FEX::Windows::DeinitCRTThread();
  }
}

void* BTCpuGetBopCode() {
  return BridgeInstrs::Syscall;