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6 <sect1 id="ch-tools-binutils-pass1">
7 <title>Binutils-&binutils-version; - Pass 1</title>
8 <?dbhtml filename="binutils-pass1.html"?>
10 <indexterm zone="ch-tools-binutils-pass1">
11 <primary sortas="a-Binutils">Binutils</primary>
12 <secondary>tools, pass 1</secondary></indexterm>
14 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="../chapter06/binutils.xml" xpointer="xpointer(/sect1/para[1])"/>
16 <screen>&buildtime; 1.0 SBU
17 &diskspace; 194 MB</screen>
19 <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="../chapter06/binutils.xml" xpointer="xpointer(/sect1/para[2])"/>
23 <title>Installation of Binutils</title>
25 <para>It is important that Binutils be the first package to get compiled,
26 because both Glibc and GCC perform various tests on the available linker and
27 assembler to determine which of their own features to enable.</para>
29 <para>This package is known to behave badly when you change its default
30 optimization flags (including the <emphasis>-march</emphasis> and
31 <emphasis>-mcpu</emphasis> options). Therefore, if you have defined any
32 environment variables that override default optimizations, such as CFLAGS and
33 CXXFLAGS, we recommend un-setting them when building Binutils.</para>
35 <para>The Binutils documentation recommends building Binutils outside of the
36 source directory in a dedicated build directory:</para>
38 <screen><userinput>mkdir ../binutils-build
39 cd ../binutils-build</userinput></screen>
41 <note><para>If you want the SBU values listed in the rest of the book to be of
42 any use, you will have to measure the time it takes to build this package --
43 from the configuration up to and including the first install. To achieve this
44 easily, you could wrap the four commands in a <command>time</command> command
45 like this: <userinput>time { ./configure ... && ... && ...
46 && make install; }</userinput>.</para></note>
48 <para>Now prepare Binutils for compilation:</para>
50 <screen><userinput>../binutils-&binutils-version;/configure --prefix=/tools --disable-nls</userinput></screen>
52 <para>The meaning of the configure options:</para>
55 <listitem><para><userinput>--prefix=/tools</userinput>: This tells the
56 configure script to prepare to install the Binutils programs in the
57 <filename>/tools</filename> directory.</para></listitem>
59 <listitem><para><userinput>--disable-nls</userinput>: This disables
60 internationalization (a word often shortened to i18n). We don't need this
61 for our static programs and <emphasis>nls</emphasis> often causes problems
62 when linking statically.</para></listitem>
65 <para>Continue with compiling the package:</para>
67 <screen><userinput>make configure-host
68 make LDFLAGS="-all-static"</userinput></screen>
70 <para>The meaning of the make parameters:</para>
73 <listitem><para><userinput>configure-host</userinput>: This forces all the
74 subdirectories to be configured immediately. A statically linked build will
75 fail without it. We therefore use this option to work around the
76 problem.</para></listitem>
78 <listitem><para><userinput>LDFLAGS="-all-static"</userinput>: This tells the
79 linker that all the Binutils programs should be linked statically. However,
80 strictly speaking, <emphasis>"-all-static"</emphasis> is passed to the
81 <command>libtool</command> program, which then passes
82 <emphasis>"-static"</emphasis> to the linker.</para></listitem>
85 <para>Compilation is complete. Normally we would now run the test suite, but
86 at this early stage the test suite framework (Tcl, Expect and DejaGnu) is not
87 yet in place. And there would be little point in running the tests anyhow,
88 since the programs from this first pass will soon be replaced by those from the
91 <para>Now install the package:</para>
93 <screen><userinput>make install</userinput></screen>
95 <para>Now prepare the linker for the <quote>Adjusting</quote> phase later on:</para>
97 <screen><userinput>make -C ld clean
98 make -C ld LDFLAGS="-all-static" LIB_PATH=/tools/lib</userinput></screen>
100 <para>The meaning of the make parameters:</para>
103 <listitem><para><userinput>-C ld clean</userinput>: This tells the make program
104 to remove all the compiled files in the <filename class="directory">ld</filename> subdirectory.</para></listitem>
106 <listitem><para><userinput>-C ld LDFLAGS="-all-static"
107 LIB_PATH=/tools/lib</userinput>: This option rebuilds everything in the
108 <filename class="directory">ld</filename> subdirectory. Specifying the LIB_PATH
109 makefile variable on the command line allows us to override the default value
110 and have it point to our temporary tools location. The value of this variable
111 specifies the linker's default library search path. You will see how this
112 preparation is used later on in the chapter.</para></listitem>
116 <warning><para><emphasis>Do not yet remove</emphasis> the Binutils build and
117 source directories. You will need them again in their current state a bit
118 further on in this chapter.</para></warning>
123 <sect2><title> </title><para> </para>
124 <para>The details on this package are found in <xref linkend="contents-binutils"/>.</para>
125 <para> </para></sect2>