Annotation of sys/lib/libkern/arch/sparc/saveregs.S, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: saveregs.S,v 1.3 2003/06/02 23:28:09 millert Exp $ */
2: /* $NetBSD: saveregs.S,v 1.2 1994/10/26 06:40:07 cgd Exp $ */
3:
4: /*
5: * Copyright (c) 1992, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This software was developed by the Computer Systems Engineering group
9: * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
10: * contributed to Berkeley.
11: *
12: * Redistribution and use in source and binary forms, with or without
13: * modification, are permitted provided that the following conditions
14: * are met:
15: * 1. Redistributions of source code must retain the above copyright
16: * notice, this list of conditions and the following disclaimer.
17: * 2. Redistributions in binary form must reproduce the above copyright
18: * notice, this list of conditions and the following disclaimer in the
19: * documentation and/or other materials provided with the distribution.
20: * 3. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
36: * Header: saveregs.s,v 1.1 91/07/06 17:22:33 torek Exp
37: */
38:
39: /*
40: * Save register arguments in caller's `arg dump' area, so that
41: * stdarg functions work.
42: *
43: * This really should be done with a pointer to the arg dump area;
44: * our caller should allocate that area, not our caller's caller.
45: * But then, they did not let me invent the calling sequence....
46: *
47: * We assume the caller has executed a `save' instruction.
48: */
49: #include "DEFS.h"
50:
51: ENTRY(__builtin_saveregs)
52: st %i0, [%fp + 0x44] ! fr->fr_argd[0]
53: st %i1, [%fp + 0x48] ! fr->fr_argd[1]
54: st %i2, [%fp + 0x4c] ! fr->fr_argd[2]
55: st %i3, [%fp + 0x50] ! fr->fr_argd[3]
56: st %i4, [%fp + 0x54] ! fr->fr_argd[4]
57: retl
58: st %i5, [%fp + 0x58] ! fr->fr_argd[5]
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