sysdeps/vax/setjmp.c

   1 /* Copyright (C) 1991, 1992, 1994 Free Software Foundation, Inc.
   2    Derived from @(#)_setjmp.s   5.7 (Berkeley) 6/27/88,
   3    Copyright (c) 1980 Regents of the University of California.
   4
   5 The GNU C Library is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU Library General Public License as
   7 published by the Free Software Foundation; either version 2 of the
   8 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 Library General Public License for more details.
  14
  15 You should have received a copy of the GNU Library General Public
  16 License along with the GNU C Library; see the file COPYING.LIB.  If
  17 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  18 Cambridge, MA 02139, USA.  */
  19
  20 #include <setjmp.h>
  21
  22
  23 /* Save the current program position in ENV and return 0.  */
  24 int
  25 __sigsetjmp (jmp_buf env, int savemask)
  26 {
  27   /* Save our caller's FP and PC.  */
  28   asm ("movl 12(fp), %0" : "=g" (env[0].__jmpbuf[0].__fp));
  29   asm ("movl 16(fp), %0" : "=g" (env[0].__jmpbuf[0].__pc));
  30
  31   /* Save the signal mask if requested.  */
  32   return __sigjmp_save (env, savemask);
  33 }