[bc82645e] | 1 | <sect1 id="ch05-binutils-pass1">
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| 2 | <title>Installing Binutils-&binutils-version; - Pass 1</title>
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| 3 | <?dbhtml filename="binutils-pass1.html" dir="chapter05"?>
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| 4 |
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[f27835d] | 5 | <screen>Estimated build time: &binutils-time-tools-pass1;
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| 6 | Estimated required disk space: &binutils-compsize-tools-pass1;</screen>
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[bc82645e] | 7 |
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[5888299] | 8 | &aa-binutils-down;
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[d0dfce4] | 9 | &aa-binutils-dep;
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[73aedd1d] | 10 |
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| 11 | <sect2><title> </title><para> </para></sect2>
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| 12 |
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| 13 | <sect2>
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| 14 | <title>Installation of Binutils</title>
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| 15 |
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| 16 | <para>It is important that Binutils be the first package to get compiled,
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| 17 | because both Glibc and GCC perform various tests on the available linker and
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| 18 | assembler to determine which of their own features to enable.</para>
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| 19 |
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| 20 | <note><para>Even though Binutils is an important toolchain package, we are not
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| 21 | going to run the test suite at this early stage. First, the test suite framework
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| 22 | is not yet in place and second, the programs from this first pass will soon be
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| 23 | overwritten by those installed in the second pass.</para></note>
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| 24 |
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| 25 | <para>This package is known to behave badly when you have changed its default
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| 26 | optimization flags (including the -march and -mcpu options). Therefore, if
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| 27 | you have defined any environment variables that override default
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| 28 | optimizations, such as CFLAGS and CXXFLAGS, we recommend unsetting or
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| 29 | modifying them when building Binutils.</para>
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| 30 |
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| 31 | <para>The Binutils documentation recommends building Binutils outside of the
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| 32 | source directory in a dedicated build directory:</para>
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| 33 |
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| 34 | <screen><userinput>mkdir ../binutils-build
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| 35 | cd ../binutils-build</userinput></screen>
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| 36 |
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| 37 | <note><para>If you want the SBU values listed in the rest of the book to be of
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| 38 | any use, you will have to measure the time it takes to build this package. To
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| 39 | achieve this easily, you could do something like:
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| 40 | <userinput>time { ./configure ... && ... && ... && make install; }</userinput>.</para></note>
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| 41 |
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| 42 | <para>Now prepare Binutils for compilation:</para>
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| 43 |
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| 44 | <screen><userinput>../binutils-&binutils-version;/configure \
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| 45 | --prefix=/tools --disable-nls</userinput></screen>
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| 46 |
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| 47 | <para>The meaning of the configure options:</para>
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| 48 |
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| 49 | <itemizedlist>
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| 50 | <listitem><para><userinput>--prefix=/tools</userinput>: This tells the
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| 51 | configure script to prepare to install the Binutils programs in the
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| 52 | <filename>/tools</filename> directory.</para></listitem>
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| 53 |
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| 54 | <listitem><para><userinput>--disable-nls</userinput>: This disables
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| 55 | internationalization (a word often shortened to i18n). We don't need this
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| 56 | for our static programs and <emphasis>nls</emphasis> often causes problems
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| 57 | when linking statically.</para></listitem>
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| 58 | </itemizedlist>
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| 59 |
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| 60 | <para>Continue with compiling the package:</para>
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| 61 |
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| 62 | <screen><userinput>make configure-host
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| 63 | make LDFLAGS="-all-static"</userinput></screen>
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| 64 |
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[5763f675] | 65 | <para>The meaning of the make parameters:</para>
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[73aedd1d] | 66 |
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| 67 | <itemizedlist>
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| 68 | <listitem><para><userinput>configure-host</userinput>: This forces all the
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| 69 | subdirectories to be configured immediately. A statically linked build will
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| 70 | fail without it. We therefore use this option to work around the
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| 71 | problem.</para></listitem>
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| 72 |
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| 73 | <listitem><para><userinput>LDFLAGS="-all-static"</userinput>: This tells the
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| 74 | linker that all the Binutils programs should be linked statically. However,
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| 75 | strictly speaking, <userinput>"-all-static"</userinput> is first passed to the
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| 76 | <emphasis>libtool</emphasis> program which then passes
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| 77 | <userinput>"-static"</userinput> on to the linker.</para></listitem>
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| 78 | </itemizedlist>
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| 79 |
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| 80 | <para>And install the package:</para>
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| 81 |
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| 82 | <screen><userinput>make install</userinput></screen>
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| 83 |
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| 84 | <para>Now prepare the linker for the "locking in" of Glibc later on:</para>
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| 85 |
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| 86 | <screen><userinput>make -C ld clean
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| 87 | make -C ld LDFLAGS="-all-static" LIB_PATH=/tools/lib</userinput></screen>
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| 88 |
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[5763f675] | 89 | <para>The meaning of the make parameters:</para>
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[73aedd1d] | 90 |
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| 91 | <itemizedlist>
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| 92 | <listitem><para><userinput>-C ld clean</userinput>: This tells the make program
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| 93 | to remove all the compiled files, but only in the <filename>ld</filename>
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| 94 | subdirectory.</para></listitem>
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| 95 |
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| 96 | <listitem><para><userinput>-C ld LDFLAGS="-all-static" LIB_PATH=/tools/lib</userinput>:
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| 97 | This option rebuilds everything in the <filename>ld</filename> subdirectory.
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| 98 | Specifying the LIB_PATH makefile variable on the command line allows us to
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| 99 | override the default value and have it point to our temporary tools location.
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| 100 | The value of this variable specifies the linker's default library search path.
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| 101 | You'll see how this preparation is used later on in the
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| 102 | chapter.</para></listitem>
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| 103 | </itemizedlist>
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| 104 |
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| 105 | <!-- HACK - Force some whitespace to appease tidy -->
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| 106 | <literallayout></literallayout>
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| 107 |
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| 108 | <warning><para>Do not yet remove the Binutils build and source directories. You
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| 109 | will need them again in their current state a bit further on in this
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| 110 | chapter.</para></warning>
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| 111 |
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| 112 | <!-- HACK - Force some whitespace to appease tidy -->
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| 113 | <literallayout></literallayout>
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| 114 |
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| 115 | </sect2>
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[bc82645e] | 116 |
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[5888299] | 117 | <sect2><title> </title><para> </para>
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| 118 | <para>The details on this package are found in <xref linkend="contents-binutils"/>.</para>
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| 119 | <para> </para></sect2>
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| 120 |
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[bc82645e] | 121 | </sect1>
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| 122 |
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