[673b0d8] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[1770019] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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[673b0d8] | 3 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 4 | %general-entities;
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| 5 | ]>
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[9652249] | 6 | <sect1 id="ch-tools-binutils-pass1" role="wrap">
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[673b0d8] | 7 | <title>Binutils-&binutils-version; - Pass 1</title>
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| 8 | <?dbhtml filename="binutils-pass1.html"?>
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[bc82645e] | 9 |
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[81fd230] | 10 | <indexterm zone="ch-tools-binutils-pass1">
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| 11 | <primary sortas="a-Binutils">Binutils</primary>
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| 12 | <secondary>tools, pass 1</secondary></indexterm>
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| 13 |
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[9652249] | 14 | <sect2 role="package"><title/>
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[81fd230] | 15 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="../chapter06/binutils.xml" xpointer="xpointer(/sect1/sect2[1]/para[1])"/>
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[673b0d8] | 16 |
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[9652249] | 17 | <segmentedlist>
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| 18 | <segtitle>&buildtime;</segtitle>
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| 19 | <segtitle>&diskspace;</segtitle>
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[fc1024a] | 20 | <seglistitem><seg>1.0 SBU</seg><seg>170 MB</seg></seglistitem>
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[9652249] | 21 | </segmentedlist>
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[673b0d8] | 22 |
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[81fd230] | 23 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="../chapter06/binutils.xml" xpointer="xpointer(/sect1/sect2[1]/segmentedlist[2])"/>
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| 24 |
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[9652249] | 25 | </sect2>
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[73aedd1d] | 26 |
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[9652249] | 27 | <sect2 role="installation">
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[73aedd1d] | 28 | <title>Installation of Binutils</title>
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| 29 |
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[81fd230] | 30 | <para>It is important that Binutils be the first package compiled
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| 31 | because both Glibc and GCC perform various tests on the available
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| 32 | linker and assembler to determine which of their own features to
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| 33 | enable.</para>
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| 34 |
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| 35 | <para>This package is known to have issues when its default
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| 36 | optimization flags (including the <parameter>-march</parameter> and
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| 37 | <parameter>-mcpu</parameter> options) are changed. If any environment
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| 38 | variables that override default optimizations have been defined, such
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| 39 | as <envar>CFLAGS</envar> and <envar>CXXFLAGS</envar>,
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| 40 | unset them when building Binutils.</para>
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| 41 |
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| 42 | <para>The Binutils documentation recommends building Binutils outside of the
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| 43 | source directory in a dedicated build directory:</para>
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[3d36131c] | 44 |
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[73aedd1d] | 45 | <screen><userinput>mkdir ../binutils-build
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| 46 | cd ../binutils-build</userinput></screen>
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| 47 |
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[81fd230] | 48 | <note><para>In order for the SBU values listed in the rest of the book
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| 49 | to be of any use, measure the time it takes to build this package from
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| 50 | the configuration, up to and including the first install. To achieve
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[373a708] | 51 | this easily, wrap the three commands in a <command>time</command>
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| 52 | command like this: <userinput>time { ./configure ... && make
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| 53 | && make install; }</userinput>.</para></note>
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[73aedd1d] | 54 |
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| 55 | <para>Now prepare Binutils for compilation:</para>
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| 56 |
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[516b668] | 57 | <screen><userinput>../binutils-&binutils-version;/configure --prefix=/tools --disable-nls</userinput></screen>
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[73aedd1d] | 58 |
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[81fd230] | 59 | <para>The meaning of the configure options:</para>
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| 60 |
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| 61 | <variablelist>
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| 62 | <varlistentry>
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| 63 | <term><parameter>--prefix=/tools</parameter></term>
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| 64 | <listitem><para>This tells the configure script to prepare to install the Binutils
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| 65 | programs in the <filename class="directory">/tools</filename> directory.</para></listitem>
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| 66 | </varlistentry>
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| 67 |
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| 68 | <varlistentry>
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| 69 | <term><parameter>--disable-nls</parameter></term>
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[bf60f2a] | 70 | <listitem><para>This disables internationalization as i18n is not needed for the
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[516b668] | 71 | temporary tools.</para></listitem>
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[81fd230] | 72 | </varlistentry>
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| 73 | </variablelist>
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| 74 |
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[73aedd1d] | 75 | <para>Continue with compiling the package:</para>
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| 76 |
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[516b668] | 77 | <screen><userinput>make</userinput></screen>
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[81fd230] | 78 |
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| 79 | <para>Compilation is now complete. Ordinarily we would now run the
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| 80 | test suite, but at this early stage the test suite framework (Tcl,
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| 81 | Expect, and DejaGNU) is not yet in place. The benefits of running the
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| 82 | tests at this point are minimal since the programs from this
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| 83 | first pass will soon be replaced by those from the second.</para>
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| 84 |
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| 85 | <para>Install the package:</para>
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[73aedd1d] | 86 |
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| 87 | <screen><userinput>make install</userinput></screen>
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| 88 |
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[81fd230] | 89 | <para>Next, prepare the linker for the <quote>Adjusting</quote> phase
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| 90 | later on:</para>
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[73aedd1d] | 91 |
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| 92 | <screen><userinput>make -C ld clean
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[516b668] | 93 | make -C ld LIB_PATH=/tools/lib</userinput></screen>
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[73aedd1d] | 94 |
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[81fd230] | 95 | <para>The meaning of the make parameters:</para>
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| 96 |
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| 97 | <variablelist>
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| 98 | <varlistentry>
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| 99 | <term><parameter>-C ld clean</parameter></term>
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| 100 | <listitem><para>This tells the make program to remove all compiled
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| 101 | files in the <filename class="directory">ld</filename>
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| 102 | subdirectory.</para></listitem>
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| 103 | </varlistentry>
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| 104 |
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| 105 | <varlistentry>
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[516b668] | 106 | <term><parameter>-C ld LIB_PATH=/tools/lib</parameter></term>
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[81fd230] | 107 | <listitem><para>This option rebuilds everything in the
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| 108 | <filename class="directory">ld</filename> subdirectory. Specifying
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| 109 | the <envar>LIB_PATH</envar> Makefile variable on the command
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| 110 | line allows us to override the default value
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| 111 | and point it to the temporary tools location. The value of this variable
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| 112 | specifies the linker's default library search path. This preparation
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| 113 | is used later in the chapter.</para></listitem>
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| 114 | </varlistentry>
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| 115 | </variablelist>
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| 116 |
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| 117 | <warning><para><emphasis>Do not</emphasis> remove the Binutils
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| 118 | build and source directories yet. These will be needed again in their
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| 119 | current state later in this chapter.</para></warning>
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[73aedd1d] | 120 |
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[0868461] | 121 | </sect2>
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[5888299] | 122 |
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[81fd230] | 123 | <sect2 role="content"><title/>
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| 124 | <para>Details on this package are located in <xref
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| 125 | linkend="contents-binutils" role="."/></para>
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| 126 | </sect2>
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| 127 |
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[bc82645e] | 128 | </sect1>
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[81fd230] | 129 |
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