| /* Copyright (C) 2003 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Jakub Jelinek <jakub@redhat.com>. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public License as |
| published by the Free Software Foundation; either version 2.1 of the |
| License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; see the file COPYING.LIB. If not, |
| write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include <dlfcn.h> |
| #include <stdio.h> |
| #include <unwind.h> |
| #include <libgcc_s.h> |
| |
| static void (*libgcc_s_resume) (struct _Unwind_Exception *exc); |
| static _Unwind_Reason_Code (*libgcc_s_personality) |
| (int, _Unwind_Action, _Unwind_Exception_Class, struct _Unwind_Exception *, |
| struct _Unwind_Context *); |
| |
| static void |
| init (void) |
| { |
| void *resume, *personality; |
| void *handle; |
| |
| handle = __libc_dlopen (LIBGCC_S_SO); |
| |
| if (handle == NULL |
| || (resume = __libc_dlsym (handle, "_Unwind_Resume")) == NULL |
| || (personality = __libc_dlsym (handle, "__gcc_personality_v0")) == NULL) |
| __libc_fatal (LIBGCC_S_SO " must be installed for pthread_cancel to work\n"); |
| |
| libgcc_s_resume = resume; |
| libgcc_s_personality = personality; |
| } |
| |
| void |
| _Unwind_Resume (struct _Unwind_Exception *exc) |
| { |
| if (__builtin_expect (libgcc_s_resume == NULL, 0)) |
| init (); |
| libgcc_s_resume (exc); |
| } |
| |
| _Unwind_Reason_Code |
| __gcc_personality_v0 (int version, _Unwind_Action actions, |
| _Unwind_Exception_Class exception_class, |
| struct _Unwind_Exception *ue_header, |
| struct _Unwind_Context *context) |
| { |
| if (__builtin_expect (libgcc_s_personality == NULL, 0)) |
| init (); |
| return libgcc_s_personality (version, actions, exception_class, |
| ue_header, context); |
| } |