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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@10550 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
151 lines
4.8 KiB
XML
151 lines
4.8 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-pass2" role="wrap">
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<?dbhtml filename="binutils-pass2.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 2</title>
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<indexterm zone="ch-tools-binutils-pass2">
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<primary sortas="a-Binutils">Binutils</primary>
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<secondary>tools, pass 2</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-ch5p2-sbu;</seg>
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<seg>&binutils-ch5p2-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 Binutils</title>
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<para>Create a separate build directory again:</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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<para>Prepare Binutils for compilation:</para>
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<screen><userinput remap="configure">CC=$LFS_TGT-gcc \
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AR=$LFS_TGT-ar \
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RANLIB=$LFS_TGT-ranlib \
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../binutils-&binutils-version;/configure \
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--prefix=/tools \
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--disable-nls \
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--disable-werror \
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--with-lib-path=/tools/lib \
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--with-sysroot</userinput></screen>
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<variablelist>
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<title>The meaning of the new configure options:</title>
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<varlistentry>
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<term><parameter>CC=$LFS_TGT-gcc AR=$LFS_TGT-ar RANLIB=$LFS_TGT-ranlib</parameter></term>
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<listitem>
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<para>Because this is really a native build of Binutils, setting these
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variables ensures that the build system uses the cross-compiler and
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associated tools instead of the ones on the host system.</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 tells the configure script to specify the library
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search path during the compilation of Binutils, resulting in
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<filename class="directory">/tools/lib</filename> being passed
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to the linker. This prevents the linker from searching through
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library directories on the host.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--with-sysroot</parameter></term>
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<listitem>
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<para>The sysroot feature enables the linker to find shared objects
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which are required by other shared objects explicitly included on the
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linker's command line. Without this, some packages may not build
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successfully on some hosts.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>Compile the package:</para>
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<screen><userinput remap="make">make</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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<para>Now prepare the linker for the <quote>Re-adjusting</quote> phase in
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the next chapter:</para>
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<screen><userinput remap="adjust">make -C ld clean
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make -C ld LIB_PATH=/usr/lib:/lib
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cp -v ld/ld-new /tools/bin</userinput></screen>
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<variablelist>
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<title>The meaning of the make parameters:</title>
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<varlistentry>
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<term><parameter>-C ld clean</parameter></term>
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<listitem>
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<para>This tells the make program to remove all compiled
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files in the <filename class="directory">ld</filename>
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subdirectory.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>-C ld LIB_PATH=/usr/lib:/lib</parameter></term>
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<listitem>
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<para>This option rebuilds everything in the <filename
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class="directory">ld</filename> subdirectory. Specifying the
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<envar>LIB_PATH</envar> Makefile variable on the command line
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allows us to override the default value of the temporary tools
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and point it to the proper final path. The value of this variable
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specifies the linker's default library search path. This
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preparation is used in the next chapter.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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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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