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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../general.ent">
%general-entities;
]>
<sect1 id="ch-tools-binutils-pass2" role="wrap">
<?dbhtml filename="binutils-pass2.html"?>
<sect1info condition="script">
<productname>binutils</productname>
<productnumber>&binutils-version;</productnumber>
<address>&binutils-url;</address>
</sect1info>
<title>Binutils-&binutils-version; - Pass 2</title>
<indexterm zone="ch-tools-binutils-pass2">
<primary sortas="a-Binutils">Binutils</primary>
<secondary>tools, pass 2</secondary>
</indexterm>
<sect2 role="package">
<title/>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
href="../chapter06/binutils.xml"
xpointer="xpointer(/sect1/sect2[1]/para[1])"/>
<segmentedlist>
<segtitle>&buildtime;</segtitle>
<segtitle>&diskspace;</segtitle>
<seglistitem>
<seg>&binutils-ch5p2-sbu;</seg>
<seg>&binutils-ch5p2-du;</seg>
</seglistitem>
</segmentedlist>
</sect2>
<sect2 role="installation">
<title>Installation of Binutils</title>
<para>Create a separate build directory again:</para>
<screen><userinput remap="pre">mkdir -v ../binutils-build
cd ../binutils-build</userinput></screen>
<para>Prepare Binutils for compilation:</para>
<screen><userinput remap="configure">CC=$LFS_TGT-gcc \
AR=$LFS_TGT-ar \
RANLIB=$LFS_TGT-ranlib \
../binutils-&binutils-version;/configure \
--prefix=/tools \
--disable-nls \
--disable-werror \
--with-lib-path=/tools/lib \
--with-sysroot</userinput></screen>
<variablelist>
<title>The meaning of the new configure options:</title>
<varlistentry>
<term><parameter>CC=$LFS_TGT-gcc AR=$LFS_TGT-ar RANLIB=$LFS_TGT-ranlib</parameter></term>
<listitem>
<para>Because this is really a native build of Binutils, setting these
variables ensures that the build system uses the cross-compiler and
associated tools instead of the ones on the host system.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>--with-lib-path=/tools/lib</parameter></term>
<listitem>
<para>This tells the configure script to specify the library
search path during the compilation of Binutils, resulting in
<filename class="directory">/tools/lib</filename> being passed
to the linker. This prevents the linker from searching through
library directories on the host.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>--with-sysroot</parameter></term>
<listitem>
<para>The sysroot feature enables the linker to find shared objects
which are required by other shared objects explicitly included on the
linker's command line. Without this, some packages may not build
successfully on some hosts.</para>
</listitem>
</varlistentry>
</variablelist>
<para>Compile the package:</para>
<screen><userinput remap="make">make</userinput></screen>
<para>Install the package:</para>
<screen><userinput remap="install">make install</userinput></screen>
<para>Now prepare the linker for the <quote>Re-adjusting</quote> phase in
the next chapter:</para>
<screen><userinput remap="adjust">make -C ld clean
make -C ld LIB_PATH=/usr/lib:/lib
cp -v ld/ld-new /tools/bin</userinput></screen>
<variablelist>
<title>The meaning of the make parameters:</title>
<varlistentry>
<term><parameter>-C ld clean</parameter></term>
<listitem>
<para>This tells the make program to remove all compiled
files in the <filename class="directory">ld</filename>
subdirectory.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>-C ld LIB_PATH=/usr/lib:/lib</parameter></term>
<listitem>
<para>This option rebuilds everything in the <filename
class="directory">ld</filename> subdirectory. Specifying the
<envar>LIB_PATH</envar> Makefile variable on the command line
allows us to override the default value of the temporary tools
and point it to the proper final path. The value of this variable
specifies the linker's default library search path. This
preparation is used in the next chapter.</para>
</listitem>
</varlistentry>
</variablelist>
</sect2>
<sect2 role="content">
<title/>
<para>Details on this package are located in
<xref linkend="contents-binutils" role="."/></para>
</sect2>
</sect1>
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