sysdeps/vax/setjmp.c

   1 /* Copyright (C) 1991, 1992, 1994, 1997 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Derived from @(#)_setjmp.s   5.7 (Berkeley) 6/27/88,
   4    Copyright (c) 1980 Regents of the University of California.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Library General Public License as
   8    published by the Free Software Foundation; either version 2 of the
   9    License, or (at your option) any later version.
  10
  11    The GNU C 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    Library General Public License for more details.
  15
  16    You should have received a copy of the GNU Library General Public
  17    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  18    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #include <setjmp.h>
  22
  23
  24 /* Save the current program position in ENV and return 0.  */
  25 int
  26 __sigsetjmp (jmp_buf env, int savemask)
  27 {
  28   /* Save our caller's FP and PC.  */
  29   asm ("movl 12(fp), %0" : "=g" (env[0].__jmpbuf[0].__fp));
  30   asm ("movl 16(fp), %0" : "=g" (env[0].__jmpbuf[0].__pc));
  31
  32   /* Save the signal mask if requested.  */
  33   return __sigjmp_save (env, savemask);
  34 }