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Install a Vectored Exception Handler[0]. Its sole purpose is to catch some exceptions (access violations, stack overflows, illegal instructions and debug breaks - by default, but it can be made to catch any exception for which a code is known) and run a debugger in response. This allows W32 glib applications to be run without a debugger, but at the same time allows a debugger to be attached in case something happens. The debugger is run with a new console, unless an environment variable is set to allow it to inherit the console of the crashing process. The short list of handleable exceptions is there to ensure that this handler won't run a debugger to "handle" utility exceptions, such as the one that is used to communicate thread names to a debugger. The handler is installed to be called last, and shouldn't interfere with any user-installed handlers. There's nothing fancy about the way it runs a debugger (it doesn't even support unicode in paths), and it deliberately avoids using glib code. The handler will also print a bit of information about the exception that it caught, and even more information for well-known exceptions, such as access violation. The whole scheme is similar to AeDebug[1] and, in fact, the signal-event gdb command was originally implemented for this very purpose. [0]: https://docs.microsoft.com/en-us/windows/desktop/debug/vectored-exception-handling [1]: https://docs.microsoft.com/en-us/windows/desktop/debug/configuring-automatic-debugging
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*
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* Copyright © 2011 Canonical Limited
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Ryan Lortie <desrt@desrt.ca>
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*/
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#ifndef __GLIB_INIT_H__
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#define __GLIB_INIT_H__
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#include "gmessages.h"
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extern GLogLevelFlags g_log_always_fatal;
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extern GLogLevelFlags g_log_msg_prefix;
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void glib_init (void);
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void g_quark_init (void);
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#ifdef G_OS_WIN32
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#include <windows.h>
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void g_thread_win32_process_detach (void);
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void g_thread_win32_thread_detach (void);
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void g_thread_win32_init (void);
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void g_console_win32_init (void);
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void g_clock_win32_init (void);
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void g_crash_handler_win32_init (void);
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void g_crash_handler_win32_deinit (void);
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extern HMODULE glib_dll;
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#endif
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#endif /* __GLIB_INIT_H__ */
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