| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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| 7 |
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| 8 | <sect1 id="ch-tools-binutils-pass1" role="wrap">
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| 9 | <?dbhtml filename="binutils-pass1.html"?>
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| 10 |
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| 11 | <sect1info condition="script">
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| 12 | <productname>binutils</productname>
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| 13 | <productnumber>&binutils-version;</productnumber>
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| 14 | <address>&binutils-url;</address>
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| 15 | </sect1info>
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| 16 |
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| 17 | <title>Binutils-&binutils-version; - Pass 1</title>
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| 18 |
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| 19 | <indexterm zone="ch-tools-binutils-pass1">
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| 20 | <primary sortas="a-Binutils">Binutils</primary>
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| 21 | <secondary>tools, pass 1</secondary>
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| 22 | </indexterm>
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| 23 |
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| 24 | <sect2 role="package">
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| 25 | <title/>
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| 26 |
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| 27 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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| 28 | href="../chapter06/binutils.xml"
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| 29 | xpointer="xpointer(/sect1/sect2[1]/para[1])"/>
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| 30 |
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| 31 | <segmentedlist>
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| 32 | <segtitle>&buildtime;</segtitle>
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| 33 | <segtitle>&diskspace;</segtitle>
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| 34 |
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| 35 | <seglistitem>
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| 36 | <seg>&binutils-ch5p1-sbu;</seg>
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| 37 | <seg>&binutils-ch5p1-du;</seg>
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| 38 | </seglistitem>
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| 39 | </segmentedlist>
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| 40 |
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| 41 | </sect2>
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| 42 |
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| 43 | <sect2 role="installation">
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| 44 | <title>Installation of Cross Binutils</title>
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| 45 |
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| 46 | <note><para>Go back and re-read the notes in the previous section.
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| 47 | Understanding the notes labeled important will save you a lot
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| 48 | of problems later.</para></note>
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| 49 |
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| 50 | <para>It is important that Binutils be the first package compiled
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| 51 | because both Glibc and GCC perform various tests on the available
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| 52 | linker and assembler to determine which of their own features to
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| 53 | enable.</para>
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| 54 |
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| 55 | <para>The Binutils documentation recommends building Binutils
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| 56 | in a dedicated build directory:</para>
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| 57 |
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| 58 | <screen><userinput remap="pre">mkdir -v build
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| 59 | cd build</userinput></screen>
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| 60 |
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| 61 | <note>
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| 62 | <para>In order for the SBU values listed in the rest of the book
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| 63 | to be of any use, measure the time it takes to build this package from
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| 64 | the configuration, up to and including the first install. To achieve
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| 65 | this easily, wrap the commands in a <command>time</command>
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| 66 | command like this: <userinput>time { ./configure ... && ...
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| 67 | && make install; }</userinput>.</para>
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| 68 | </note>
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| 69 |
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| 70 | <note><para>The approximate build SBU values and required disk space
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| 71 | in Chapter 5 does not include test suite data.</para></note>
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| 72 |
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| 73 | <para>Now prepare Binutils for compilation:</para>
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| 74 |
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| 75 | <screen arch="default"><userinput remap="configure">../configure --prefix=/tools \
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| 76 | --with-sysroot=$LFS \
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| 77 | --with-lib-path=/tools/lib \
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| 78 | --target=$LFS_TGT \
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| 79 | --disable-nls \
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| 80 | --disable-werror</userinput></screen>
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| 81 |
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| 82 | <screen arch="multilib"><userinput remap="configure">../configure --prefix=/tools \
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| 83 | --with-sysroot=$LFS \
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| 84 | --with-lib-path=/tools/lib:/tools/lib32:/tools/libx32 \
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| 85 | --target=$LFS_TGT \
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| 86 | --disable-nls \
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| 87 | --disable-werror \
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| 88 | --enable-64-bit-bfd \
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| 89 | --enable-multilib</userinput></screen>
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| 90 |
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| 91 | <variablelist>
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| 92 | <title>The meaning of the configure options:</title>
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| 93 |
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| 94 | <varlistentry>
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| 95 | <term><parameter>--prefix=/tools</parameter></term>
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| 96 | <listitem>
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| 97 | <para>This tells the configure script to prepare to install the
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| 98 | Binutils programs in the <filename class="directory">/tools</filename>
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| 99 | directory.</para>
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| 100 | </listitem>
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| 101 | </varlistentry>
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| 102 |
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| 103 | <varlistentry>
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| 104 | <term><parameter>--with-sysroot=$LFS</parameter></term>
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| 105 | <listitem>
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| 106 | <para>For cross compilation, this tells the build system to look in
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| 107 | $LFS for the target system libraries as needed.</para>
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| 108 | </listitem>
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| 109 | </varlistentry>
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| 110 |
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| 111 | <varlistentry>
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| 112 | <term><parameter>--with-lib-path=/tools/lib</parameter></term>
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| 113 | <listitem>
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| 114 | <para>This specifies which library path the linker should be
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| 115 | configured to use.</para>
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| 116 | </listitem>
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| 117 | </varlistentry>
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| 118 |
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| 119 | <varlistentry>
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| 120 | <term><envar>--target=$LFS_TGT</envar></term>
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| 121 | <listitem>
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| 122 | <para>Because the machine description in the <envar>LFS_TGT</envar>
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| 123 | variable is slightly different than the value returned by the
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| 124 | <command>config.guess</command> script, this switch will tell the
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| 125 | <command>configure</command> script to adjust Binutil's build system
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| 126 | for building a cross linker. </para>
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| 127 | </listitem>
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| 128 | </varlistentry>
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| 129 |
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| 130 | <varlistentry>
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| 131 | <term><parameter>--disable-nls</parameter></term>
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| 132 | <listitem>
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| 133 | <para>This disables internationalization as i18n is not needed for the
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| 134 | temporary tools.</para>
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| 135 | </listitem>
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| 136 | </varlistentry>
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| 137 |
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| 138 | <varlistentry>
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| 139 | <term><parameter>--disable-werror</parameter></term>
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| 140 | <listitem>
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| 141 | <para>This prevents the build from stopping in the event that there
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| 142 | are warnings from the host's compiler.</para>
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| 143 | </listitem>
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| 144 | </varlistentry>
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| 145 |
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| 146 | </variablelist>
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| 147 |
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| 148 | <para>Continue with compiling the package:</para>
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| 149 |
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| 150 | <screen><userinput remap="make">make</userinput></screen>
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| 151 |
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| 152 | <para>Compilation is now complete. Ordinarily we would now run the
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| 153 | test suite, but at this early stage the test suite framework (Tcl,
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| 154 | Expect, and DejaGNU) is not yet in place. The benefits of running the
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| 155 | tests at this point are minimal since the programs from this
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| 156 | first pass will soon be replaced by those from the second.</para>
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| 157 |
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| 158 | <para arch="default">If building on x86_64, create a symlink to ensure the
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| 159 | sanity of the toolchain:</para>
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| 160 |
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| 161 | <para arch="multilib">Create a symlink to ensure the sanity of
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| 162 | the toolchain:</para>
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| 163 |
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| 164 | <screen arch="default"><userinput remap="install">case $(uname -m) in
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| 165 | x86_64) mkdir -v /tools/lib && ln -sv lib /tools/lib64 ;;
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| 166 | esac</userinput></screen>
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| 167 |
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| 168 | <screen arch="multilib"><userinput remap="install">mkdir -v /tools/lib &&
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| 169 | ln -sv lib /tools/lib64</userinput></screen>
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| 170 |
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| 171 | <para>Install the package:</para>
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| 172 |
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| 173 | <screen><userinput remap="install">make install</userinput></screen>
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| 174 |
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| 175 | </sect2>
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| 176 |
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| 177 | <sect2 role="content">
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| 178 | <title/>
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| 179 |
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| 180 | <para>Details on this package are located in
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| 181 | <xref linkend="contents-binutils" role="."/></para>
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| 182 |
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| 183 | </sect2>
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| 184 |
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| 185 | </sect1>
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