setjmp/__longjmp.c

   1 /* Copyright (C) 1991, 1994, 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <errno.h>
  20 #include <setjmp.h>
  21
  22
  23 /* Jump to the position specified by ENV, causing the
  24    setjmp call there to return VAL, or 1 if VAL is 0.  */
  25 void
  26 __longjmp (__jmp_buf env, int val)
  27 {
  28   if (val == 0)
  29     val = 1;
  30
  31   __set_errno (ENOSYS);
  32   /* No way to signal failure.  */
  33 }
  34
  35 stub_warning (longjmp)
  36 #include <stub-tag.h>