libexec/ld.elf_so/sysident.h

   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