glibc/sysdeps/vax/setjmp.c
1992-03-11 23:10:37 +00:00

38 lines
1.3 KiB
C

/* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
Derived from @(#)_setjmp.s 5.7 (Berkeley) 6/27/88,
Copyright (c) 1980 Regents of the University of California.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <setjmp.h>
#ifndef __GNUC__
#error This file uses GNU C extensions; you must compile with GCC.
#endif
/* Save the current program position in ENV and return 0. */
int
DEFUN(__setjmp, (env), jmp_buf env)
{
/* Save our caller's FP and PC. */
asm("movl 12(fp), %0" : "=g" (env[0].__fp));
asm("movl 16(fp), %0" : "=g" (env[0].__pc));
return 0;
}