mirror of https://github.com/tLDP/LDP
172 lines
5.7 KiB
XML
172 lines
5.7 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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%general-entities;
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]>
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<sect1 id="ch-tools-binutils-pass1" role="wrap">
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<?dbhtml filename="binutils-pass1.html"?>
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<sect1info condition="script">
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<productname>binutils</productname>
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<productnumber>&binutils-version;</productnumber>
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<address>&binutils-url;</address>
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</sect1info>
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<title>Binutils-&binutils-version; - Pass 1</title>
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<indexterm zone="ch-tools-binutils-pass1">
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<primary sortas="a-Binutils">Binutils</primary>
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<secondary>tools, pass 1</secondary>
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</indexterm>
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<sect2 role="package">
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<title/>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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href="../chapter06/binutils.xml"
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xpointer="xpointer(/sect1/sect2[1]/para[1])"/>
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<segmentedlist>
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<segtitle>&buildtime;</segtitle>
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<segtitle>&diskspace;</segtitle>
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<seglistitem>
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<seg>&binutils-ch5p1-sbu;</seg>
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<seg>&binutils-ch5p1-du;</seg>
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</seglistitem>
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</segmentedlist>
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</sect2>
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<sect2 role="installation">
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<title>Installation of Cross Binutils</title>
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<note><para>Go back and re-read the notes in the previous section.
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Understanding the notes labeled important will save you a lot
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of problems later.</para></note>
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<para>It is important that Binutils be the first package compiled
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because both Glibc and GCC perform various tests on the available
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linker and assembler to determine which of their own features to
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enable.</para>
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<para>The Binutils documentation recommends building Binutils outside of the
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source directory in a dedicated build directory:</para>
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<screen><userinput remap="pre">mkdir -v ../binutils-build
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cd ../binutils-build</userinput></screen>
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<note>
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<para>In order for the SBU values listed in the rest of the book
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to be of any use, measure the time it takes to build this package from
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the configuration, up to and including the first install. To achieve
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this easily, wrap the commands in a <command>time</command>
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command like this: <userinput>time { ./configure ... && ...
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&& make install; }</userinput>.</para>
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</note>
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<note><para>The approximate build SBU values and required disk space
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in Chapter 5 does not include test suite data.</para></note>
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<para>Now prepare Binutils for compilation:</para>
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<screen><userinput remap="configure">../binutils-&binutils-version;/configure \
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--prefix=/tools \
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--with-sysroot=$LFS \
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--with-lib-path=/tools/lib \
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--target=$LFS_TGT \
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--disable-nls \
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--disable-werror</userinput></screen>
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<variablelist>
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<title>The meaning of the configure options:</title>
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<varlistentry>
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<term><parameter>--prefix=/tools</parameter></term>
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<listitem>
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<para>This tells the configure script to prepare to install the
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Binutils programs in the <filename class="directory">/tools</filename>
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directory.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--with-sysroot=$LFS</parameter></term>
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<listitem>
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<para>For cross compilation, this tells the build system to look in
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$LFS for the target system libraries as needed.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--with-lib-path=/tools/lib</parameter></term>
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<listitem>
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<para>This specifies which library path the linker should be
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configured to use.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><envar>--target=$LFS_TGT</envar></term>
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<listitem>
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<para>Because the machine description in the <envar>LFS_TGT</envar>
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variable is slightly different than the value returned by the
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<command>config.guess</command> script, this switch will tell the
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<command>configure</command> script to adjust Binutil's build system
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for building a cross linker. </para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--disable-nls</parameter></term>
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<listitem>
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<para>This disables internationalization as i18n is not needed for the
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temporary tools.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--disable-werror</parameter></term>
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<listitem>
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<para>This prevents the build from stopping in the event that there
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are warnings from the host's compiler.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>Continue with compiling the package:</para>
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<screen><userinput remap="make">make</userinput></screen>
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<para>Compilation is now complete. Ordinarily we would now run the
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test suite, but at this early stage the test suite framework (Tcl,
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Expect, and DejaGNU) is not yet in place. The benefits of running the
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tests at this point are minimal since the programs from this
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first pass will soon be replaced by those from the second.</para>
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<para>If building on x86_64, create a symlink to ensure the sanity of
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the toolchain:</para>
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<screen><userinput remap="install">case $(uname -m) in
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x86_64) mkdir -v /tools/lib && ln -sv lib /tools/lib64 ;;
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esac</userinput></screen>
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<para>Install the package:</para>
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<screen><userinput remap="install">make install</userinput></screen>
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</sect2>
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<sect2 role="content">
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<title/>
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<para>Details on this package are located in
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<xref linkend="contents-binutils" role="."/></para>
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</sect2>
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</sect1>
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