common_win_pi_trace.hpp

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//==------------ common_win_pi_trace.hpp - SYCL standard header file -------==//
//
// 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 .hpp is injected. Be sure to define __SYCL_PLUGIN_DLL_NAME before
// including
#ifdef _WIN32
#include <windows.h>
BOOL WINAPI DllMain(HINSTANCE hinstDLL,  // handle to DLL module
                    DWORD fdwReason,     // reason for calling function
                    LPVOID lpReserved) { // reserved
 
  bool PrintPiTrace = false;
  static const char *PiTrace = std::getenv("SYCL_PI_TRACE");
  static const int PiTraceValue = PiTrace ? std::stoi(PiTrace) : 0;
  if (PiTraceValue == -1 || PiTraceValue == 2) { // Means print all PI traces
    PrintPiTrace = true;
  }
 
  // Perform actions based on the reason for calling.
  switch (fdwReason) {
  case DLL_PROCESS_DETACH:
    if (PrintPiTrace)
      std::cout << "---> DLL_PROCESS_DETACH " << __SYCL_PLUGIN_DLL_NAME << "\n"
                << std::endl;
 
    break;
  case DLL_PROCESS_ATTACH:
    if (PrintPiTrace)
      std::cout << "---> DLL_PROCESS_ATTACH " << __SYCL_PLUGIN_DLL_NAME << "\n"
                << std::endl;
    break;
  case DLL_THREAD_ATTACH:
    break;
  case DLL_THREAD_DETACH:
    break;
  }
  return TRUE;
}
#endif // WIN32