glibc/sysdeps/x86_64/bits/setjmp.h

48 lines
1.5 KiB
C

/* Copyright (C) 2001 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., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/* Define the machine-dependent type `jmp_buf'. x86-64 version. */
#ifndef _SETJMP_H
# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
#endif
/* We only need to save callee-saved registers plus stackpointer and
program counter. */
#if defined __USE_MISC || defined _ASM
# define JB_RBX 0
# define JB_RBP 1
# define JB_R12 2
# define JB_R13 3
# define JB_R14 4
# define JB_R15 5
# define JB_RSP 6
# define JB_PC 7
# define JB_SIZE (8*8)
#endif
#ifndef _ASM
typedef long int __jmp_buf[8];
/* 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_RSP])
#endif