1/*	$NetBSD: cerror.S,v 1.14 2009/12/14 01:07:42 matt Exp $	*/
2
3/*-
4 * Copyright (c) 1991, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <machine/asm.h>
36__FBSDID("$FreeBSD$");
37#include "SYS.h"
38
39#if defined(LIBC_SCCS) && !defined(lint)
40#if 0
41	RCSID("from: @(#)cerror.s	8.1 (Berkeley) 6/16/93")
42#else
43	RCSID("$NetBSD: cerror.S,v 1.14 2009/12/14 01:07:42 matt Exp $")
44#endif
45#endif /* LIBC_SCCS and not lint */
46
47	.globl	_C_LABEL(__error)
48NESTED_NOPROFILE(__cerror, CALLFRAME_SIZ, ra)
49	.mask	0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ)
50	SETUP_GP
51	PTR_SUBU	sp, sp, CALLFRAME_SIZ
52	SETUP_GP64(CALLFRAME_GP, __cerror)
53	SAVE_GP(CALLFRAME_GP)
54
55	PTR_S		ra, CALLFRAME_RA(sp)
56	REG_S		v0, CALLFRAME_S0(sp)	# save errno value
57
58	PTR_LA		t9, _C_LABEL(__error)	# locate address of errno
59	jalr		t9
60
61	REG_L		t0, CALLFRAME_S0(sp)
62	PTR_L		ra, CALLFRAME_RA(sp)
63	INT_S		t0, 0(v0)		# update errno value
64
65	RESTORE_GP64
66	PTR_ADDU	sp, sp, CALLFRAME_SIZ
67
68	li		v0, -1
69	li		v1, -1
70
71	j		ra
72END(__cerror)
73