[5bc82c5] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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| 7 |
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| 8 | <sect1 id="ch-tools-linux-headers" role="wrap">
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| 9 | <?dbhtml filename="linux-headers.html"?>
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| 10 |
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| 11 | <title>Linux-Headers-&linux-version;</title>
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| 12 |
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| 13 | <indexterm zone="ch-tools-linux-headers">
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| 14 | <primary sortas="a-Linux-Headers">Linux-Headers</primary>
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| 15 | <secondary>tools, headers</secondary>
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| 16 | </indexterm>
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| 17 |
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| 18 | <sect2 role="package">
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| 19 | <title/>
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| 20 |
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| 21 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 22 | href="../chapter06/linux-headers.xml"
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| 23 | xpointer="xpointer(/sect1/sect2[1]/para[1])"/>
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| 24 |
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| 25 | <segmentedlist>
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| 26 | <segtitle>&buildtime;</segtitle>
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| 27 | <segtitle>&diskspace;</segtitle>
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| 28 |
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| 29 | <seglistitem>
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| 30 | <seg>&linux-headers-ch5-sbu;</seg>
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| 31 | <seg>&linux-headers-ch5-du;</seg>
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| 32 | </seglistitem>
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| 33 | </segmentedlist>
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| 34 |
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| 35 | </sect2>
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| 36 |
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| 37 | <sect2 role="installation">
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| 38 | <title>Installation of Linux-Headers</title>
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| 39 |
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| 40 | <para>The Linux kernel needs to expose an Application Programming Interface
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| 41 | (API) for the system's C library (Glibc in LFS) to utilize. This is done
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| 42 | by way of sanitizing various C header files that are shipped in the Linux
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| 43 | kernel source tarball.</para>
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| 44 |
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| 45 | <para>Apply the following patch to provide <command>unifdef</command>, which
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| 46 | the installation of the kernel headers requires:</para>
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| 47 |
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| 48 | <screen><userinput>patch -Np1 -i ../linux-&linux-version;-unifdef-1.patch</userinput></screen>
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| 49 |
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| 50 | <para>Install the header files:</para>
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| 51 |
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| 52 | <screen><userinput>mkdir /tools/tmp
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| 53 | make mrproper
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| 54 | make headers_check
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| 55 | make INSTALL_HDR_PATH=/tools/tmp headers_install
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| 56 | cp -R /tools/tmp/include/* /tools/include
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| 57 | rm -r /tools/tmp</userinput></screen>
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| 58 |
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| 59 | </sect2>
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| 60 |
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| 61 | <sect2 role="content">
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| 62 | <title/>
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| 63 |
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| 64 | <para>Details on this package are located in
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| 65 | <xref linkend="contents-linux-headers" role="."/></para>
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| 66 |
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| 67 | </sect2>
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| 68 |
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| 69 | </sect1>
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