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77346d903d
When targeting mingw on architectures other than x86, the earlier cases don't apply, and the final fallback, raise(SIGTRAP) isn't usable there. GCC and Clang both support __builtin_trap(), so in case we have no other alternatives, and are on windows (where raise() isn't available), we can resort to this.
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__) || (defined(_WIN32) && (defined(__clang__) || defined(__GNUC__)))
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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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