chapter06/linux-headers.xml

   1 <?xml version="1.0" encoding="ISO-8859-1"?>
   2 <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   3   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
   4   <!ENTITY % general-entities SYSTEM "../general.ent">
   5   %general-entities;
   6 ]>
   7
   8 <sect1 id="ch-system-linux-headers" role="wrap">
   9   <?dbhtml filename="linux-headers.html"?>
  10
  11   <sect1info condition="script">
  12     <productname>linux-headers</productname>
  13     <productnumber>&linux-version;</productnumber>
  14     <address>&linux-url;</address>
  15   </sect1info>
  16
  17   <title>Linux-&linux-version; API Headers</title>
  18
  19   <indexterm zone="ch-system-linux-headers">
  20     <primary sortas="a-Linux">Linux</primary>
  21     <secondary>API headers</secondary>
  22   </indexterm>
  23
  24   <sect2 role="package">
  25     <title/>
  26
  27     <para>The Linux API Headers (in linux-&linux-version;.tar.xz) expose the
  28     kernel's API for use by Glibc.</para>
  29
  30     <segmentedlist>
  31       <segtitle>&buildtime;</segtitle>
  32       <segtitle>&diskspace;</segtitle>
  33
  34       <seglistitem>
  35         <seg>&linux-headers-ch6-sbu;</seg>
  36         <seg>&linux-headers-ch6-du;</seg>
  37       </seglistitem>
  38     </segmentedlist>
  39
  40   </sect2>
  41
  42   <sect2 role="installation">
  43     <title>Installation of Linux API Headers</title>
  44
  45     <para>The Linux kernel needs to expose an Application Programming Interface
  46     (API) for the system's C library (Glibc in LFS) to use.  This is done
  47     by way of sanitizing various C header files that are shipped in the Linux
  48     kernel source tarball.</para>
  49
  50     <para>Make sure there are no stale files and dependencies lying around
  51     from previous activity:</para>
  52
  53 <screen><userinput remap="pre">make mrproper</userinput></screen>
  54
  55     <para>Now extract the user-visible kernel headers from the source.
  56     The recommended make target <quote>headers_install</quote> cannot be
  57     used, because it requires <application>rsync</application>, which is
  58     not available in <filename class="directory">/tools</filename>. The
  59     headers are first placed in <filename class="directory">./usr</filename>,
  60     then some files used by the kernel developers are removed, then
  61     the files are copied to their final location.</para>
  62
  63 <screen><userinput remap="make">make headers
  64 find usr/include -name '.*' -delete
  65 rm usr/include/Makefile
  66 </userinput><userinput remap="install">cp -rv usr/include/* /usr/include</userinput></screen>
  67
  68   </sect2>
  69
  70   <sect2 id="contents-linux-headers" role="content">
  71     <title>Contents of Linux API Headers</title>
  72
  73     <segmentedlist>
  74       <segtitle>Installed headers</segtitle>
  75       <segtitle>Installed directories</segtitle>
  76
  77       <seglistitem>
  78         <seg>/usr/include/asm/*.h, /usr/include/asm-generic/*.h,
  79         /usr/include/drm/*.h, /usr/include/linux/*.h, /usr/include/misc/*.h,
  80         /usr/include/mtd/*.h, /usr/include/rdma/*.h, /usr/include/scsi/*.h,
  81         /usr/include/sound/*.h, /usr/include/video/*.h,
  82         and /usr/include/xen/*.h</seg>
  83         <seg>/usr/include/asm, /usr/include/asm-generic, /usr/include/drm,
  84         /usr/include/linux, /usr/include/misc, /usr/include/mtd,
  85         /usr/include/rdma, /usr/include/scsi, /usr/include/sound,
  86         /usr/include/video, and /usr/include/xen</seg>
  87       </seglistitem>
  88     </segmentedlist>
  89
  90     <variablelist>
  91       <bridgehead renderas="sect3">Short Descriptions</bridgehead>
  92       <?dbfo list-presentation="list"?>
  93       <?dbhtml list-presentation="table"?>
  94
  95       <varlistentry id="asm">
  96         <term><filename class="headerfile">/usr/include/asm/*.h</filename></term>
  97         <listitem>
  98           <para>The Linux API ASM Headers</para>
  99           <indexterm zone="ch-system-linux-headers asm">
 100             <primary sortas="e-/usr/include/asm/*.h">/usr/include/asm/*.h</primary>
 101           </indexterm>
 102         </listitem>
 103       </varlistentry>
 104
 105       <varlistentry id="asm-generic">
 106         <term><filename class="headerfile">/usr/include/asm-generic/*.h</filename></term>
 107         <listitem>
 108           <para>The Linux API ASM Generic Headers</para>
 109           <indexterm zone="ch-system-linux-headers asm-generic">
 110             <primary sortas="e-/usr/include/asm-generic/*.h">/usr/include/asm-generic/*.h</primary>
 111           </indexterm>
 112         </listitem>
 113       </varlistentry>
 114
 115       <varlistentry id="drm">
 116         <term><filename class="headerfile">/usr/include/drm/*.h</filename></term>
 117         <listitem>
 118           <para>The Linux API DRM Headers</para>
 119           <indexterm zone="ch-system-linux-headers drm">
 120             <primary sortas="e-/usr/include/drm/*.h">/usr/include/drm/*.h</primary>
 121           </indexterm>
 122         </listitem>
 123       </varlistentry>
 124
 125       <varlistentry id="linux">
 126         <term><filename class="headerfile">/usr/include/linux/*.h</filename></term>
 127         <listitem>
 128           <para>The Linux API Linux Headers</para>
 129           <indexterm zone="ch-system-linux-headers linux">
 130             <primary sortas="e-/usr/include/linux/*.h">/usr/include/linux/*.h</primary>
 131           </indexterm>
 132         </listitem>
 133       </varlistentry>
 134
 135       <varlistentry id="misc">
 136         <term><filename class="headerfile">/usr/include/misc/*.h</filename></term>
 137         <listitem>
 138           <para>The Linux API Miscellaneous Headers</para>
 139           <indexterm zone="ch-system-linux-headers misc">
 140             <primary sortas="e-/usr/include/misc/*.h">/usr/include/misc/*.h</primary>
 141           </indexterm>
 142         </listitem>
 143       </varlistentry>
 144
 145       <varlistentry id="mtd">
 146         <term><filename class="headerfile">/usr/include/mtd/*.h</filename></term>
 147         <listitem>
 148           <para>The Linux API MTD Headers</para>
 149           <indexterm zone="ch-system-linux-headers mtd">
 150             <primary sortas="e-/usr/include/mtd/*.h">/usr/include/mtd/*.h</primary>
 151           </indexterm>
 152         </listitem>
 153       </varlistentry>
 154
 155       <varlistentry id="rdma">
 156         <term><filename class="headerfile">/usr/include/rdma/*.h</filename></term>
 157         <listitem>
 158           <para>The Linux API RDMA Headers</para>
 159           <indexterm zone="ch-system-linux-headers rdma">
 160             <primary sortas="e-/usr/include/rdma/*.h">/usr/include/rdma/*.h</primary>
 161           </indexterm>
 162         </listitem>
 163       </varlistentry>
 164
 165       <varlistentry id="scsi">
 166         <term><filename class="headerfile">/usr/include/scsi/*.h</filename></term>
 167         <listitem>
 168           <para>The Linux API SCSI Headers</para>
 169           <indexterm zone="ch-system-linux-headers scsi">
 170             <primary sortas="e-/usr/include/scsi/*.h">/usr/include/scsi/*.h</primary>
 171           </indexterm>
 172         </listitem>
 173       </varlistentry>
 174
 175       <varlistentry id="sound">
 176         <term><filename class="headerfile">/usr/include/sound/*.h</filename></term>
 177         <listitem>
 178           <para>The Linux API Sound Headers</para>
 179           <indexterm zone="ch-system-linux-headers sound">
 180             <primary sortas="e-/usr/include/sound/*.h">/usr/include/sound/*.h</primary>
 181           </indexterm>
 182         </listitem>
 183       </varlistentry>
 184
 185       <varlistentry id="video">
 186         <term><filename class="headerfile">/usr/include/video/*.h</filename></term>
 187         <listitem>
 188           <para>The Linux API Video Headers</para>
 189           <indexterm zone="ch-system-linux-headers video">
 190             <primary sortas="e-/usr/include/video/*.h">/usr/include/video/*.h</primary>
 191           </indexterm>
 192         </listitem>
 193       </varlistentry>
 194
 195       <varlistentry id="xen">
 196         <term><filename class="headerfile">/usr/include/xen/*.h</filename></term>
 197         <listitem>
 198           <para>The Linux API Xen Headers</para>
 199           <indexterm zone="ch-system-linux-headers xen">
 200             <primary sortas="e-/usr/include/xen/*.h">/usr/include/xen/*.h</primary>
 201           </indexterm>
 202         </listitem>
 203       </varlistentry>
 204
 205     </variablelist>
 206
 207   </sect2>
 208
 209 </sect1>