1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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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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3 | <!ENTITY % general-entities SYSTEM "../general.ent">
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4 | %general-entities;
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5 | ]>
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6 | <sect1 id="ch-tools-binutils-pass1" role="wrap">
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7 | <title>Binutils-&binutils-version; - Pass 1</title>
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8 | <?dbhtml filename="binutils-pass1.html"?>
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9 |
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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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14 | <sect2 role="package"><title/>
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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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16 |
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17 | <segmentedlist>
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18 | <segtitle>&buildtime;</segtitle>
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19 | <segtitle>&diskspace;</segtitle>
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20 | <seglistitem><seg>1.0 SBU</seg><seg>170 MB</seg></seglistitem>
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21 | </segmentedlist>
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22 |
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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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25 | </sect2>
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26 |
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27 | <sect2 role="installation">
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28 | <title>Installation of Binutils</title>
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29 |
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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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44 |
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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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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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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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54 |
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55 | <para>Now prepare Binutils for compilation:</para>
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56 |
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57 | <screen><userinput>../binutils-&binutils-version;/configure --prefix=/tools --disable-nls</userinput></screen>
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58 |
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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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70 | <listitem><para>This disables internationalization as i18n is not needed for the
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71 | temporary tools.</para></listitem>
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72 | </varlistentry>
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73 | </variablelist>
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74 |
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75 | <para>Continue with compiling the package:</para>
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76 |
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77 | <screen><userinput>make</userinput></screen>
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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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86 |
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87 | <screen><userinput>make install</userinput></screen>
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88 |
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89 | <para>Next, prepare the linker for the <quote>Adjusting</quote> phase
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90 | later on:</para>
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91 |
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92 | <screen><userinput>make -C ld clean
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93 | make -C ld LIB_PATH=/tools/lib</userinput></screen>
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94 |
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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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106 | <term><parameter>-C ld LIB_PATH=/tools/lib</parameter></term>
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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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120 |
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121 | </sect2>
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122 |
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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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128 | </sect1>
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129 |
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