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/* Copyright (C) 1997, 1998, 2007 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
Boston, MA 02110-1301, USA. */
/* Define the machine-dependent type `jmp_buf'. Xtensa version. */
#ifndef _BITS_SETJMP_H
#define _BITS_SETJMP_H 1
#if !defined _SETJMP_H && !defined _PTHREAD_H
# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
#endif
/* The jmp_buf structure for Xtensa holds the following (where "proc"
is the procedure that calls setjmp): 4-12 registers from the window
of proc, the 4 words from the save area at proc's $sp (in case a
subsequent alloca in proc moves $sp), and the return address within
proc. Everything else is saved on the stack in the normal save areas. */
#ifndef _ASM
typedef int __jmp_buf[17];
#endif
#define JB_SP 1
#define JB_PC 16
/* Test if longjmp to JMPBUF would unwind the frame containing a local
variable at ADDRESS. */
#define _JMPBUF_UNWINDS(jmpbuf, address) \
((void *) (address) < (void *) (jmpbuf)[JB_SP])
#endif /* bits/setjmp.h */
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