1 /*
   2  * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 # include "incls/_precompiled.incl"
  26 # include "incls/_vmError_windows.cpp.incl"
  27 
  28 
  29 void VMError::show_message_box(char *buf, int buflen) {
  30   bool yes;
  31   do {
  32     error_string(buf, buflen);
  33     int len = (int)strlen(buf);
  34     char *p = &buf[len];
  35 
  36     jio_snprintf(p, buflen - len,
  37                "\n\n"
  38                "Do you want to debug the problem?\n\n"
  39                "To debug, attach Visual Studio to process %d; then switch to thread 0x%x\n"
  40                "Select 'Yes' to launch Visual Studio automatically (PATH must include msdev)\n"
  41                "Otherwise, select 'No' to abort...",
  42                os::current_process_id(), os::current_thread_id());
  43 
  44     yes = os::message_box("Unexpected Error", buf) != 0;
  45 
  46     if (yes) {
  47       // yes, user asked VM to launch debugger
  48       //
  49       // os::breakpoint() calls DebugBreak(), which causes a breakpoint
  50       // exception. If VM is running inside a debugger, the debugger will
  51       // catch the exception. Otherwise, the breakpoint exception will reach
  52       // the default windows exception handler, which can spawn a debugger and
  53       // automatically attach to the dying VM.
  54       os::breakpoint();
  55       yes = false;
  56     }
  57   } while (yes);
  58 }
  59 
  60 int VMError::get_resetted_sigflags(int sig) {
  61   return -1;
  62 }
  63 
  64 address VMError::get_resetted_sighandler(int sig) {
  65   return NULL;
  66 }
  67 
  68 LONG WINAPI crash_handler(struct _EXCEPTION_POINTERS* exceptionInfo) {
  69   DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode;
  70   VMError err(NULL, exception_code, NULL,
  71                 exceptionInfo->ExceptionRecord, exceptionInfo->ContextRecord);
  72   err.report_and_die();
  73   return EXCEPTION_CONTINUE_SEARCH;
  74 }
  75 
  76 void VMError::reset_signal_handlers() {
  77   SetUnhandledExceptionFilter(crash_handler);
  78 }