glibc/sysdeps/s390/bits/setjmp.h

/* Copyright (C) 2000 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   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., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

/* Define the machine-dependent type `jmp_buf'.  IBM s390 version.  */

#ifndef __S390_SETJMP_H__
#define __S390_SETJMP_H__

#define	JB_GPR6	  0
#define JB_GPR7	  1
#define JB_GPR8	  2
#define JB_GPR9	  3
#define JB_GPR10  4
#define JB_GPR11  5
#define JB_GPR12  6
#define JB_GPR13  7
#define JB_GPR14  8
#define JB_GPR15  9

#ifndef	_ASM

typedef struct {
    /* We save registers 6-15 */
    long int gregs[10];

    /* We save fpu registers 4 and 6 */
    long long fpregs[2];
} __jmp_buf[1];

#endif

/* Test if longjmp to JMPBUF would unwind the frame
   containing a local variable at ADDRESS.  */
#define _JMPBUF_UNWINDS(jmpbuf, address) \
  ((int) (address) < (jmpbuf)->gregs[JB_GPR15])

#endif /* __S390_SETJMP_H__ */