michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include <stdio.h>
michael@0: #include <windows.h>
michael@0: 
michael@0: // make sure we only ever spawn one thread
michael@0: DWORD tid = -1;
michael@0: 
michael@0: DWORD WINAPI CrashingThread(
michael@0:   LPVOID lpParameter
michael@0: )
michael@0: {
michael@0:   // not a very friendly DLL
michael@0:   volatile int* x = (int *)0x0;
michael@0:   *x = 1;
michael@0:   return 0;
michael@0: }
michael@0: 
michael@0: BOOL WINAPI DllMain(
michael@0:   HANDLE hinstDLL,
michael@0:   DWORD dwReason,
michael@0:   LPVOID lpvReserved
michael@0: )
michael@0: {
michael@0:   if (tid == -1)
michael@0:     // we have to crash on another thread because LoadLibrary() will
michael@0:     // catch memory access errors and return failure to the calling process
michael@0:     CreateThread(
michael@0:                  nullptr,                // default security attributes
michael@0:                  0,                      // use default stack size
michael@0:                  CrashingThread,         // thread function name
michael@0:                  nullptr,                // argument to thread function
michael@0:                  0,                      // use default creation flags
michael@0:                  &tid);                  // returns the thread identifier
michael@0:   return TRUE;
michael@0: }