win: Handle binary with embedded CodeView debug record

handler/win/z7_test.cpp

+// Copyright 2015 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Build in VC++6 or older command prompt with:
+//
+// cl /nologo /W4 /MT /Z7 z7_test.cpp /link /dll /out:z7_test.dll /debugtype:cv /pdb:none
+//
+// Given that this is quite tedious to build, the result is also checked in.
+
+#include <windows.h>
+#include <stdio.h>
+
+extern "C" __declspec(dllexport) void CrashMe() {
+  volatile int* foo = reinterpret_cast<volatile int*>(7);
+  *foo = 42;
+}
+
+BOOL WINAPI DllMain(HINSTANCE hinstance, DWORD reason, LPVOID) {
+  printf("%p %d\n", hinstance, reason);
+  return TRUE;
+}