setjmp.h

Axis 221 camera embedded programing interface

/* Copyright (C) 1999, 2000, 2003, 2004 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'.  FRV version. */

#ifndef _SETJMP_H
# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
#endif

#define	__SETJMP_NUM_INT	32		/* number of integer registers to save */
#define	__SETJMP_NUM_DBL	32		/* number of double registers to save */

#define	__SETJMP_INT(x)	(x)
#define	__SETJMP_DBL(x)	(__SETJMP_NUM_INT+(x))
#define	__SETJMP_LR	(__SETJMP_NUM_INT+__SETJMP_NUM_DBL)
#define __SETJMP_SP	(__SETJMP_LR+1)
#define __SETJMP_FP	(__SETJMP_SP+1)


#ifndef _ASM
typedef struct
/* Demand 64-bit alignment such that we can use std/ldd in
   setjmp/longjmp.  */
__attribute__((__aligned__(8)))
  {
    /* Callee-saved registers.  */
    unsigned long __ints[__SETJMP_NUM_INT];	/* integer registers */
    unsigned long __dbls[__SETJMP_NUM_DBL];	/* double registers */
    unsigned long __lr;				/* linkage register */
    unsigned long __sp;				/* stack pointer */
    unsigned long __fp;				/* frame pointer */
  } __jmp_buf[1];
#endif

/* Test if longjmp to JMPBUF would unwind the frame
   containing a local variable at ADDRESS.  */
#define _JMPBUF_UNWINDS(jmpbuf, address) \
  ((unsigned long) (address) < (jmpbuf)->__sp)