ports/sysdeps/unix/sysv/linux/ia64/nptl/unwind-forcedunwind.c

   1 /* Copyright (C) 2003-2014 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@redhat.com>.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <dlfcn.h>
  20 #include <stdio.h>
  21 #include <unwind.h>
  22 #include <pthreadP.h>
  23
  24 static _Unwind_Word (*libgcc_s_getbsp) (struct _Unwind_Context *);
  25
  26 #define ARCH_CANCEL_INIT(handle) \
  27   ((libgcc_s_getbsp = __libc_dlsym (handle, "_Unwind_GetBSP")) == NULL)
  28
  29 #include <sysdeps/pthread/unwind-forcedunwind.c>
  30
  31 _Unwind_Word
  32 _Unwind_GetBSP (struct _Unwind_Context *context)
  33 {
  34   if (__builtin_expect (libgcc_s_getbsp == NULL, 0))
  35     pthread_cancel_init ();
  36
  37   return libgcc_s_getbsp (context);
  38 }