mirror of https://github.com/tLDP/LDP
59 lines
2.0 KiB
XML
59 lines
2.0 KiB
XML
<sect1 id="ch05-kernel-headers">
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<title>Installing Linux-&kernel-version; headers</title>
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<?dbhtml filename="kernel-headers.html" dir="chapter05"?>
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<screen>Estimated build time: &kernel-time-headers;
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Estimated required disk space: &kernel-compsize-headers;</screen>
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&aa-kernel-shortdesc;
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&aa-kernel-dep;
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<sect2><title> </title><para> </para></sect2>
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<sect2>
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<title>Installation of the kernel headers</title>
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<para>As some packages need to refer to the kernel header files, we're going
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to unpack the kernel archive now, set it up, and copy the required files to a
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place where <userinput>gcc</userinput> can later find them.</para>
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<para>Prepare for the header installation with:</para>
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<screen><userinput>make mrproper</userinput></screen>
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<para>This ensures that the kernel tree is absolutely clean. The kernel team
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recommends that this command be issued prior to <emphasis>each</emphasis> kernel
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compilation. You shouldn't rely on the source tree being clean after
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untarring.</para>
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<para>Create the <filename>include/linux/version.h</filename> file:</para>
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<screen><userinput>make include/linux/version.h</userinput></screen>
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<para>Create the platform-specific <filename>include/asm</filename>
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symlink:</para>
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<screen><userinput>make symlinks</userinput></screen>
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<para>Install the platform-specific header files:</para>
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<screen><userinput>mkdir /tools/include/asm
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cp include/asm/* /tools/include/asm
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cp -R include/asm-generic /tools/include</userinput></screen>
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<para>Install the cross-platform kernel header files:</para>
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<screen><userinput>cp -R include/linux /tools/include</userinput></screen>
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<para>There are a few kernel header files which make use of the
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<filename>autoconf.h</filename> header file. Since we do not yet configure the
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kernel, we need to create this file ourselves in order to avoid compilation
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failures. Create an empty <filename>autoconf.h</filename> file:</para>
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<screen><userinput>touch /tools/include/linux/autoconf.h</userinput></screen>
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</sect2>
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</sect1>
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