nptl/sysdeps/unix/sysv/linux/s390/jmp-unwind.c

   1 /* Clean up stack frames unwound by longjmp.  Linux/s390 version.
   2    Copyright (C) 2003 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <setjmp.h>
  21 #include <stddef.h>
  22 #include <pthread-functions.h>
  23 #include <pthreaddef.h>
  24
  25 extern void __pthread_cleanup_upto (__jmp_buf env, char *targetframe);
  26 #pragma weak __pthread_cleanup_upto
  27
  28
  29 void
  30 _longjmp_unwind (jmp_buf env, int val)
  31 {
  32 #ifdef SHARED
  33 # define fptr __libc_pthread_functions.ptr___pthread_cleanup_upto
  34 #else
  35 # define fptr __pthread_cleanup_upto
  36 #endif
  37
  38   unsigned char local_var;
  39
  40   if (fptr != NULL)
  41     fptr (env->__jmpbuf, &local_var);
  42 }