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https://gitlab.gnome.org/GNOME/glib.git
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a0456f9c96
Clarify that we actually raise SIGTRAP rather than calling abort(). We
haven’t called abort() since about 2011, when commit
a04efe6afb changed the logic to use
SIGTRAP to make it possible to skip past fatal log messages in the
debugger if they weren’t relevant to the problem being debugged.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
https://gitlab.gnome.org/GNOME/glib/issues/1448
73 lines
2.7 KiB
C
73 lines
2.7 KiB
C
/* GLIB - Library of useful routines for C programming
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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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,
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* but 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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/*
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* Modified by the GLib Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GLib Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GLib at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __G_BACKTRACE_H__
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#define __G_BACKTRACE_H__
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#if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
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#error "Only <glib.h> can be included directly."
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#endif
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#include <glib/gtypes.h>
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#ifdef __sun__
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#include <sys/select.h>
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#endif
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#include <signal.h>
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G_BEGIN_DECLS
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GLIB_AVAILABLE_IN_ALL
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void g_on_error_query (const gchar *prg_name);
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GLIB_AVAILABLE_IN_ALL
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void g_on_error_stack_trace (const gchar *prg_name);
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/**
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* G_BREAKPOINT:
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*
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* Inserts a breakpoint instruction into the code.
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*
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* On architectures which support it, this is implemented as a soft interrupt
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* and on other architectures it raises a `SIGTRAP` signal.
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*
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* `SIGTRAP` is used rather than abort() to allow breakpoints to be skipped past
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* in a debugger if they are not the desired target of debugging.
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*/
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#if (defined (__i386__) || defined (__x86_64__)) && defined (__GNUC__) && __GNUC__ >= 2
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# define G_BREAKPOINT() G_STMT_START{ __asm__ __volatile__ ("int $03"); }G_STMT_END
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#elif (defined (_MSC_VER) || defined (__DMC__)) && defined (_M_IX86)
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# define G_BREAKPOINT() G_STMT_START{ __asm int 3h }G_STMT_END
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#elif defined (_MSC_VER)
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# define G_BREAKPOINT() G_STMT_START{ __debugbreak(); }G_STMT_END
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#elif defined (__alpha__) && !defined(__osf__) && defined (__GNUC__) && __GNUC__ >= 2
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# define G_BREAKPOINT() G_STMT_START{ __asm__ __volatile__ ("bpt"); }G_STMT_END
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#elif defined (__APPLE__)
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# define G_BREAKPOINT() G_STMT_START{ __builtin_trap(); }G_STMT_END
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#else /* !__i386__ && !__alpha__ */
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# define G_BREAKPOINT() G_STMT_START{ raise (SIGTRAP); }G_STMT_END
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#endif /* __i386__ */
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G_END_DECLS
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#endif /* __G_BACKTRACE_H__ */
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