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4 <!ENTITY % general-entities SYSTEM "../general.ent">
8 <sect1 id="ch-tools-binutils-pass1" role="wrap">
9 <?dbhtml filename="binutils-pass1.html"?>
11 <sect1info condition="script">
12 <productname>binutils</productname>
13 <productnumber>&binutils-version;</productnumber>
14 <address>&binutils-url;</address>
17 <title>Binutils-&binutils-version; - Pass 1</title>
19 <indexterm zone="ch-tools-binutils-pass1">
20 <primary sortas="a-Binutils">Binutils</primary>
21 <secondary>tools, pass 1</secondary>
24 <sect2 role="package">
27 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
28 href="../chapter06/binutils.xml"
29 xpointer="xpointer(/sect1/sect2[1]/para[1])"/>
32 <segtitle>&buildtime;</segtitle>
33 <segtitle>&diskspace;</segtitle>
36 <seg>&binutils-ch5p1-sbu;</seg>
37 <seg>&binutils-ch5p1-du;</seg>
43 <sect2 role="installation">
44 <title>Installation of Cross Binutils</title>
46 <note><para>Go back and re-read the notes in the previous section.
47 Understanding the notes labeled important will save you a lot
48 of problems later.</para></note>
50 <para>It is important that Binutils be the first package compiled
51 because both Glibc and GCC perform various tests on the available
52 linker and assembler to determine which of their own features to
55 <para>The Binutils documentation recommends building Binutils outside of the
56 source directory in a dedicated build directory:</para>
58 <screen><userinput remap="pre">mkdir -v ../binutils-build
59 cd ../binutils-build</userinput></screen>
62 <para>In order for the SBU values listed in the rest of the book
63 to be of any use, measure the time it takes to build this package from
64 the configuration, up to and including the first install. To achieve
65 this easily, wrap the commands in a <command>time</command>
66 command like this: <userinput>time { ./configure ... && ...
67 && make install; }</userinput>.</para>
70 <note><para>The approximate build SBU values and required disk space
71 in Chapter 5 does not include test suite data.</para></note>
73 <para>Now prepare Binutils for compilation:</para>
75 <screen><userinput remap="configure">../binutils-&binutils-version;/configure \
78 --with-lib-path=/tools/lib \
81 --disable-werror</userinput></screen>
84 <title>The meaning of the configure options:</title>
87 <term><parameter>--prefix=/tools</parameter></term>
89 <para>This tells the configure script to prepare to install the
90 Binutils programs in the <filename class="directory">/tools</filename>
96 <term><parameter>--with-sysroot=$LFS</parameter></term>
98 <para>For cross compilation, this tells the build system to look in
99 $LFS for the target system libraries as needed.</para>
104 <term><parameter>--with-lib-path=/tools/lib</parameter></term>
106 <para>This specifies which library path the linker should be
107 configured to use.</para>
112 <term><envar>--target=$LFS_TGT</envar></term>
114 <para>Because the machine description in the <envar>LFS_TGT</envar>
115 variable is slightly different than the value returned by the
116 <command>config.guess</command> script, this switch will tell the
117 <command>configure</command> script to adjust Binutil's build system
118 for building a cross linker. </para>
123 <term><parameter>--disable-nls</parameter></term>
125 <para>This disables internationalization as i18n is not needed for the
126 temporary tools.</para>
131 <term><parameter>--disable-werror</parameter></term>
133 <para>This prevents the build from stopping in the event that there
134 are warnings from the host's compiler.</para>
140 <para>Continue with compiling the package:</para>
142 <screen><userinput remap="make">make</userinput></screen>
144 <para>Compilation is now complete. Ordinarily we would now run the
145 test suite, but at this early stage the test suite framework (Tcl,
146 Expect, and DejaGNU) is not yet in place. The benefits of running the
147 tests at this point are minimal since the programs from this
148 first pass will soon be replaced by those from the second.</para>
150 <para>If building on x86_64, create a symlink to ensure the sanity of
151 the toolchain:</para>
153 <screen><userinput remap="install">case $(uname -m) in
154 x86_64) mkdir -v /tools/lib && ln -sv lib /tools/lib64 ;;
155 esac</userinput></screen>
157 <para>Install the package:</para>
159 <screen><userinput remap="install">make install</userinput></screen>
163 <sect2 role="content">
166 <para>Details on this package are located in
167 <xref linkend="contents-binutils" role="."/></para>