1/* $NetBSD: cerror.S,v 1.13 2003/08/07 16:42:17 agc Exp $ */
| 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>
| 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: head/lib/libc/mips/sys/cerror.S 178580 2008-04-26 12:08:02Z imp $");
| 36__FBSDID("$FreeBSD: head/lib/libc/mips/sys/cerror.S 209231 2010-06-16 12:55:14Z jchandra $");
|
37#include "SYS.h"
38
39#if defined(LIBC_SCCS) && !defined(lint)
| 37#include "SYS.h"
38
39#if defined(LIBC_SCCS) && !defined(lint)
|
40 ASMSTR("from: @(#)cerror.s 8.1 (Berkeley) 6/16/93")
41 ASMSTR("$NetBSD: cerror.S,v 1.13 2003/08/07 16:42:17 agc Exp $")
| 40#if 0
41 RCSID("from: @(#)cerror.s 8.1 (Berkeley) 6/16/93")
42#else
43 RCSID("$NetBSD: cerror.S,v 1.14 2009/12/14 01:07:42 matt Exp $")
44#endif
|
42#endif /* LIBC_SCCS and not lint */
43
| 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)
|
44
| 54
|
45 /*
46 * The __error() function is thread aware. For non-threaded
47 * programs and the initial threaded in threaded programs,
48 * it returns a pointer to the global errno variable.
49 */
50 .globl _C_LABEL(__error)
51 .type _C_LABEL(__error),%function
| 55 PTR_S ra, CALLFRAME_RA(sp)
56 REG_S v0, CALLFRAME_S0(sp) # save errno value
|
52
| 57
|
53LEAF(__cerror)
54 .frame sp, CALLFRAME_SIZ, ra
55 PIC_PROLOGUE(__cerror, t9)
56 subu sp, sp, CALLFRAME_SIZ
57 .mask 0x80000000, (CALLFRAME_RA - CALLFRAME_SIZ)
58 sw ra, CALLFRAME_RA(sp)
59 sw v0, 12(sp) # save errno value
| 58 PTR_LA t9, _C_LABEL(__error) # locate address of errno
59 jalr t9
|
60
| 60
|
61 la t9, _C_LABEL(__error) # locate address of errno
62 jalr t9
| 61 REG_L t0, CALLFRAME_S0(sp)
62 PTR_L ra, CALLFRAME_RA(sp)
63 INT_S t0, 0(v0) # update errno value
|
63
| 64
|
64 lw t0, 12(sp)
65 lw ra, CALLFRAME_RA(sp)
66 sw t0, 0(v0) # update errno value
67 addiu sp, sp, CALLFRAME_SIZ
68 li v0, -1
69 li v1, -1
70 j ra
| 65 RESTORE_GP64
66 PTR_ADDU sp, sp, CALLFRAME_SIZ
67
68 li v0, -1
69 li v1, -1
70
71 j ra
|
71END(__cerror)
| 72END(__cerror)
|