1  /* GLIB - Library of useful routines for C programming
       2   * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
       3   *
       4   * SPDX-License-Identifier: LGPL-2.1-or-later
       5   *
       6   * This library is free software; you can redistribute it and/or
       7   * modify it under the terms of the GNU Lesser General Public
       8   * License as published by the Free Software Foundation; either
       9   * version 2.1 of the License, or (at your option) any later version.
      10   *
      11   * This library is distributed in the hope that it will be useful,
      12   * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14   * Lesser General Public License for more details.
      15   *
      16   * You should have received a copy of the GNU Lesser General Public
      17   * License along with this library; if not, see <http://www.gnu.org/licenses/>.
      18   */
      19  
      20  /*
      21   * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
      22   * file for a list of people on the GLib Team.  See the ChangeLog
      23   * files for a list of changes.  These files are distributed with
      24   * GLib at ftp://ftp.gtk.org/pub/gtk/.
      25   */
      26  
      27  #ifndef __G_BACKTRACE_H__
      28  #define __G_BACKTRACE_H__
      29  
      30  #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
      31  #error "Only <glib.h> can be included directly."
      32  #endif
      33  
      34  #include <glib/gtypes.h>
      35  #ifdef __sun__
      36  #include <sys/select.h>
      37  #endif
      38  #include <signal.h>
      39  
      40  G_BEGIN_DECLS
      41  
      42  GLIB_AVAILABLE_IN_ALL
      43  void g_on_error_query (const gchar *prg_name);
      44  GLIB_AVAILABLE_IN_ALL
      45  void g_on_error_stack_trace (const gchar *prg_name);
      46  
      47  /**
      48   * G_BREAKPOINT:
      49   *
      50   * Inserts a breakpoint instruction into the code.
      51   *
      52   * On architectures which support it, this is implemented as a soft interrupt
      53   * and on other architectures it raises a `SIGTRAP` signal.
      54   *
      55   * `SIGTRAP` is used rather than abort() to allow breakpoints to be skipped past
      56   * in a debugger if they are not the desired target of debugging.
      57   */
      58  #if (defined (__i386__) || defined (__x86_64__)) && defined (__GNUC__) && __GNUC__ >= 2
      59  #  define G_BREAKPOINT()        G_STMT_START{ __asm__ __volatile__ ("int $03"); }G_STMT_END
      60  #elif (defined (_MSC_VER) || defined (__DMC__)) && defined (_M_IX86)
      61  #  define G_BREAKPOINT()        G_STMT_START{ __asm int 3h }G_STMT_END
      62  #elif defined (_MSC_VER)
      63  #  define G_BREAKPOINT()        G_STMT_START{ __debugbreak(); }G_STMT_END
      64  #elif defined (__alpha__) && !defined(__osf__) && defined (__GNUC__) && __GNUC__ >= 2
      65  #  define G_BREAKPOINT()        G_STMT_START{ __asm__ __volatile__ ("bpt"); }G_STMT_END
      66  #elif defined (__APPLE__) || (defined(_WIN32) && (defined(__clang__) || defined(__GNUC__)))
      67  #  define G_BREAKPOINT()        G_STMT_START{ __builtin_trap(); }G_STMT_END
      68  #else   /* !__i386__ && !__alpha__ */
      69  #  define G_BREAKPOINT()        G_STMT_START{ raise (SIGTRAP); }G_STMT_END
      70  #endif  /* __i386__ */
      71  
      72  G_END_DECLS
      73  
      74  #endif /* __G_BACKTRACE_H__ */