xref: /minix/libexec/ld.elf_so/sysident.h (revision 0a6a1f1d)
1 /* $NetBSD: sysident.h,v 1.17 2014/01/12 19:36:08 joerg Exp $ */
2 
3 /*
4  * Copyright (c) 1997 Christopher G. Demetriou
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *          This product includes software developed for the
18  *          NetBSD Project.  See http://www.NetBSD.org/ for
19  *          information about NetBSD.
20  * 4. The name of the author may not be used to endorse or promote products
21  *    derived from this software without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33  *
34  * <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
35  */
36 
37 /*
38  * Here we define the NetBSD OS Version in an ELF .note section, structured
39  * like:
40  *
41  * [NOTE HEADER]
42  *	long		name size
43  *	long		description size
44  *	long		note type
45  *
46  * [NOTE DATUM]
47  *	string		OS name
48  *
49  * OSVERSION notes also have:
50  *	long		OS version (__NetBSD_Version__ constant from param.h)
51  *
52  * The DATUM fields should be padded out such that their actual (not
53  * declared) sizes % 4 == 0.
54  *
55  * These are used by the kernel to determine if this binary is really a
56  * NetBSD binary, or some other OS's.
57  */
58 
59 /* XXX: NetBSD 1.5 compatibility only! */
60 #if __NetBSD_Version__ < 105010000
61 #define	ELF_NOTE_TYPE_NETBSD_TAG	1
62 #endif
63 
64 #define	__S(x)	__STRING(x)
65 __asm(
66 	".pushsection\t\".note.netbsd.ident\", \"a\"\n"
67 	"\t.p2align\t2\n\n"
68 
69 	"\t.long\t" __S(ELF_NOTE_NETBSD_NAMESZ) "\n"
70 	"\t.long\t" __S(ELF_NOTE_NETBSD_DESCSZ) "\n"
71 	"\t.long\t" __S(ELF_NOTE_TYPE_NETBSD_TAG) "\n"
72 	"\t.ascii\t" __S(ELF_NOTE_NETBSD_NAME) "\n"
73 	"\t.long\t" __S(__NetBSD_Version__) "\n\n"
74 
75 	"\t.popsection\n"
76 );
77 
78 __asm(
79 	".pushsection\t\".note.netbsd.pax\", \"a\"\n"
80 	"\t.p2align\t2\n\n"
81 
82 	"\t.long\t" __S(ELF_NOTE_PAX_NAMESZ) "\n"
83 	"\t.long\t" __S(ELF_NOTE_PAX_DESCSZ) "\n"
84 	"\t.long\t" __S(ELF_NOTE_TYPE_PAX_TAG) "\n"
85 	"\t.ascii\t" __S(ELF_NOTE_PAX_NAME) "\n"
86 	"\t.long\t" __S(0) "\n\n"
87 
88 	"\t.popsection\n"
89 );
90 
91 #ifdef ELF_NOTE_MARCH_DESC
92 __asm(
93 	".pushsection\t\".note.netbsd.march\", \"a\"\n"
94 	"\t.p2align\t2\n\n"
95 
96 	"\t.long\t" __S(ELF_NOTE_MARCH_NAMESZ) "\n"
97 	"\t.long\t2f-1f\n"
98 	"\t.long\t" __S(ELF_NOTE_TYPE_MARCH_TAG) "\n"
99 	"\t.ascii\t" __S(ELF_NOTE_MARCH_NAME) "\n"
100 	"1:\t.asciz\t" __S(ELF_NOTE_MARCH_DESC) "\n"
101 	"2:\n"
102 
103 	"\t.popsection\n"
104 );
105 #endif
106