compident.S revision 1.3.2.2 1 1.3.2.2 yamt /* $NetBSD: compident.S,v 1.3.2.2 2014/05/22 11:36:44 yamt Exp $ */
2 1.3.2.2 yamt
3 1.3.2.2 yamt /*-
4 1.3.2.2 yamt * Copyright (c) 2002, 2008 The NetBSD Foundation, Inc.
5 1.3.2.2 yamt * All rights reserved.
6 1.3.2.2 yamt *
7 1.3.2.2 yamt * This code is derived from software contributed to The NetBSD Foundation
8 1.3.2.2 yamt * by Martin Husemann <martin (at) NetBSD.org>.
9 1.3.2.2 yamt *
10 1.3.2.2 yamt * Redistribution and use in source and binary forms, with or without
11 1.3.2.2 yamt * modification, are permitted provided that the following conditions
12 1.3.2.2 yamt * are met:
13 1.3.2.2 yamt * 1. Redistributions of source code must retain the above copyright
14 1.3.2.2 yamt * notice, this list of conditions and the following disclaimer.
15 1.3.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright
16 1.3.2.2 yamt * notice, this list of conditions and the following disclaimer in the
17 1.3.2.2 yamt * documentation and/or other materials provided with the distribution.
18 1.3.2.2 yamt *
19 1.3.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 1.3.2.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 1.3.2.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 1.3.2.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 1.3.2.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 1.3.2.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 1.3.2.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 1.3.2.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 1.3.2.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 1.3.2.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 1.3.2.2 yamt * POSSIBILITY OF SUCH DAMAGE.
30 1.3.2.2 yamt */
31 1.3.2.2 yamt
32 1.3.2.2 yamt
33 1.3.2.2 yamt /*
34 1.3.2.2 yamt * This file is used to generate a note describing the code model in use by
35 1.3.2.2 yamt * the compiler on some architectures where this has consequences for the
36 1.3.2.2 yamt * VA layout applied by the kernel. On sparc64 the topdown VA layout can
37 1.3.2.2 yamt * only be enabled for processes compiled with -mcmodel=medany or greater,
38 1.3.2.2 yamt * but not for processes without this note or -mcmodel=medlow.
39 1.3.2.2 yamt *
40 1.3.2.2 yamt * The note looks similar to the .note.netbsd.march note used (for example)
41 1.3.2.2 yamt * on arm to note the ABI used by the process.
42 1.3.2.2 yamt *
43 1.3.2.2 yamt * [NOTE HEADER]
44 1.3.2.2 yamt * long name size
45 1.3.2.2 yamt * long content size
46 1.3.2.2 yamt * long note type
47 1.3.2.2 yamt *
48 1.3.2.2 yamt * [NOTE DATUM]
49 1.3.2.2 yamt * string code model (for sparc64: medlow, medmid, medany,
50 1.3.2.2 yamt * the embedany model is never PIC, so not used here)
51 1.3.2.2 yamt *
52 1.3.2.2 yamt * The DATUM fields should be padded out such that their actual (not
53 1.3.2.2 yamt * declared) sizes % 4 == 0.
54 1.3.2.2 yamt */
55 1.3.2.2 yamt
56 1.3.2.2 yamt #include "sysident_assym.h"
57 1.3.2.2 yamt
58 1.3.2.2 yamt .section .note.netbsd.mcmodel,"aM",@note,3*4+CONTENTLENGTH+ELF_NOTE_MCMODEL_NAMESZ+1
59 1.3.2.2 yamt .p2align 2
60 1.3.2.2 yamt
61 1.3.2.2 yamt .long ELF_NOTE_MCMODEL_NAMESZ
62 1.3.2.2 yamt .long CONTENTLENGTH
63 1.3.2.2 yamt .long ELF_NOTE_TYPE_MCMODEL_TAG
64 1.3.2.2 yamt .ascii "NetBSD\0\0"
65 1.3.2.2 yamt .ascii CONTENT
66