glibc/sysdeps/hppa/bits/setjmp.h
2014-04-29 04:20:39 -04:00

61 lines
1.9 KiB
C

/* Copyright (C) 2000-2014 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, see
<http://www.gnu.org/licenses/>. */
/* Define the machine-dependent type `jmp_buf'. HPPA 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
#ifndef _ASM
/* The entire jump buffer must be 168 bytes long and laid
out in exactly as follows for ABI consistency.
* 20 x 32-bit gprs, with 8-bytes of padding, arranged so:
- r3 (callee saves)
- 4 bytes of padding.
- r4-r18 (callee saves)
- r19 (PIC register)
- r27 (static link register)
- r30 (stcack pointer)
- r2 (return pointer)
- 4 bytes of padding.
* 10 x 64-bit fprs in this order:
- fr12-fr21 (callee saves)
Note: We have 8 bytes of free space for future uses. */
typedef union
{
struct __jmp_buf_internal_tag
{
int __r3;
int __pad0;
int __r4_r18[15];
int __r19;
int __r27;
int __sp;
int __rp;
int __pad1;
double __fr12_fr21[10];
} __jmp_buf;
/* Legacy definition. Ensures double alignment for fpsrs. */
double __align[21];
} __jmp_buf[1];
#endif
#endif /* bits/setjmp.h */