[673b0d8] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/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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[9652249] | 6 | <sect1 id="ch-tools-glibc" role="wrap">
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[673b0d8] | 7 | <title>Glibc-&glibc-version;</title>
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| 8 | <?dbhtml filename="glibc.html"?>
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[bc82645e] | 9 |
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[673b0d8] | 10 | <indexterm zone="ch-tools-glibc">
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| 11 | <primary sortas="a-Glibc">Glibc</primary>
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| 12 | <secondary>tools</secondary></indexterm>
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[bc82645e] | 13 |
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[9652249] | 14 | <sect2 role="package"><title/>
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| 15 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="../chapter06/glibc.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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| 20 | <seglistitem><seg>11.8 SBU</seg><seg>800 MB</seg></seglistitem>
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| 21 | </segmentedlist>
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[673b0d8] | 22 |
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[9652249] | 23 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="../chapter06/glibc.xml" xpointer="xpointer(/sect1/sect2[1]/segmentedlist[2])"/>
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[73aedd1d] | 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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[5888299] | 28 | <title>Installation of Glibc</title>
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[73aedd1d] | 29 |
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[ede9b9b] | 30 | <para>This package is known to behave badly when you change its default
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[574b0ea] | 31 | optimization flags (including the <parameter>-march</parameter> and
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| 32 | <parameter>-mcpu</parameter> options). Therefore, if you have defined any
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[ede9b9b] | 33 | environment variables that override default optimizations, such as CFLAGS and
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[673b0d8] | 34 | CXXFLAGS, we recommend un-setting them when building Glibc.</para>
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[73aedd1d] | 35 |
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| 36 | <para>Basically, compiling Glibc in any other way than the book suggests
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| 37 | is putting the stability of your system at risk.</para>
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| 38 |
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| 39 | <para>The Glibc documentation recommends building Glibc outside of the source
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| 40 | directory in a dedicated build directory:</para>
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| 41 |
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| 42 | <screen><userinput>mkdir ../glibc-build
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| 43 | cd ../glibc-build</userinput></screen>
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| 44 |
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[d27a27b] | 45 | <para>Next, prepare Glibc for compilation:</para>
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[73aedd1d] | 46 |
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[9dfc02f] | 47 | <screen><userinput>../glibc-&glibc-version;/configure --prefix=/tools \
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| 48 | --disable-profile --enable-add-ons=nptl --with-tls \
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[4fdb55e] | 49 | --with-__thread --enable-kernel=2.6.0 --with-binutils=/tools/bin \
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| 50 | --without-gd --without-cvs --with-headers=/tools/glibc-kernheaders</userinput></screen>
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[73aedd1d] | 51 |
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| 52 | <para>The meaning of the configure options:</para>
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| 53 |
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[9652249] | 54 | <variablelist>
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| 55 | <varlistentry>
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[574b0ea] | 56 | <term><parameter>--disable-profile</parameter></term>
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[9652249] | 57 | <listitem><para>This builds the
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[9dfc02f] | 58 | libraries without profiling information. Omit this option if you plan to do
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[9652249] | 59 | profiling on the temporary tools.</para></listitem>
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| 60 | </varlistentry>
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| 61 |
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| 62 | <varlistentry>
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[574b0ea] | 63 | <term><parameter>--enable-add-ons=nptl</parameter></term>
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[9652249] | 64 | <listitem><para>This tells Glibc to use the NPTL add-on as its threading
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| 65 | library.</para></listitem>
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| 66 | </varlistentry>
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| 67 |
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| 68 | <varlistentry>
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[574b0ea] | 69 | <term><parameter>--with-tls</parameter></term>
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[9652249] | 70 | <listitem><para>This tells Glibc to include support for TLS (thread-local storage).
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| 71 | This is required for NPTL to work. </para></listitem>
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| 72 | </varlistentry>
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| 73 |
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[4fdb55e] | 74 | <varlistentry>
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| 75 | <term><parameter>--with-__thread</parameter></term>
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| 76 | <listitem><para>This tells Glibc to include thread support, this is for proper
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| 77 | compiling of the thread-local storage.</para></listitem>
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| 78 | </varlistentry>
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| 79 |
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| 80 | <varlistentry>
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| 81 | <term><parameter>--enable-kernel=2.6.0</parameter></term>
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| 82 | <listitem><para>This tells Glibc to compile the library for support of
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| 83 | linux 2.6.x kernels.
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| 84 | </para></listitem>
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| 85 | </varlistentry>
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| 86 |
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[9652249] | 87 | <varlistentry>
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[574b0ea] | 88 | <term><parameter>--with-binutils=/tools/bin</parameter></term>
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[9652249] | 89 | <listitem><para>Strictly speaking this switch is not required. But it does ensure
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| 90 | nothing can go wrong with regard to what Binutils programs get used during the
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| 91 | Glibc build.</para></listitem>
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| 92 | </varlistentry>
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| 93 |
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| 94 | <varlistentry>
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[574b0ea] | 95 | <term><parameter>--without-gd</parameter></term>
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[9652249] | 96 | <listitem><para>This prevents the build of the <command>memusagestat</command>
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| 97 | program, which strangely enough insists on linking against the host's libraries
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| 98 | (libgd, libpng, libz, and so forth). </para></listitem>
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| 99 | </varlistentry>
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| 100 |
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| 101 | <varlistentry>
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[574b0ea] | 102 | <term><parameter>--without-cvs</parameter></term>
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[9652249] | 103 | <listitem><para>This is meant to prevent
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[c76accc] | 104 | the Makefiles from attempting automatic CVS checkouts when using a CVS
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| 105 | snapshot. But it's not actually needed these days. We use it because it
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| 106 | suppresses an annoying but harmless warning about a missing
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| 107 | <command>autoconf</command> program.</para></listitem>
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[9652249] | 108 | </varlistentry>
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[9dfc02f] | 109 |
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[9652249] | 110 | <varlistentry>
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[574b0ea] | 111 | <term><parameter>--with-headers=/tools/glibc-kernheaders</parameter></term>
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[9652249] | 112 | <listitem><para>This tells Glibc to compile against the <quote>raw</quote>
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| 113 | kernel headers, so that it knows exactly what features the kernel has, and can
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| 114 | optimize itself accordingly. Not strictly necessary, but nice to have.</para></listitem>
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| 115 | </varlistentry>
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| 116 | </variablelist>
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[73aedd1d] | 117 |
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| 118 | <para>During this stage you might see the following warning:</para>
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| 119 |
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[574b0ea] | 120 | <blockquote><screen><computeroutput>configure: WARNING:
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[73aedd1d] | 121 | *** These auxiliary programs are missing or incompatible versions: msgfmt
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| 122 | *** some features will be disabled.
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[574b0ea] | 123 | *** Check the INSTALL file for required versions.</computeroutput></screen></blockquote>
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[73aedd1d] | 124 |
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[ede9b9b] | 125 | <para>The missing or incompatible <command>msgfmt</command> program is
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[73aedd1d] | 126 | generally harmless, but it's believed it can sometimes cause problems when
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| 127 | running the test suite.</para>
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| 128 |
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| 129 | <para>Compile the package:</para>
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| 130 |
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| 131 | <screen><userinput>make</userinput></screen>
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| 132 |
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[d878ce3] | 133 | <para>Compilation is now complete. As mentioned earlier, running the test suites
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| 134 | for the temporary tools installed in this chapter is not mandatory. If you want
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| 135 | to run the Glibc test suite though, the following command will do so:</para>
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[73aedd1d] | 136 |
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| 137 | <screen><userinput>make check</userinput></screen>
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| 138 |
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[d878ce3] | 139 | <para>For a discussion of test failures that are of particular
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| 140 | importance, please see <xref linkend="ch-system-glibc"/>.</para>
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| 141 |
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| 142 | <para>In this chapter, some tests can be adversely affected by existing tools or
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| 143 | environmental issues on the host system. In short, don't worry too much if you
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| 144 | see Glibc test suite failures in this chapter. The Glibc in
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| 145 | <xref linkend="chapter-building-system"/> is the one we'll ultimately end up
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| 146 | using, so that is the one we would really like to see pass the tests (but even
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| 147 | there some failures could still occur -- the <emphasis>math</emphasis> tests,
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| 148 | for example).</para>
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| 149 |
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| 150 | <para>When experiencing a failure, make a note of it, then continue by reissuing
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| 151 | the <command>make check</command>. The test suite should pick up where it left
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| 152 | off and continue. You can circumvent this stop-start sequence by issuing a
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| 153 | <command>make -k check</command>. If you do that though, be sure to log the
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| 154 | output so that you can later peruse the log file and examine the total number of
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| 155 | failures.</para>
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[ede9b9b] | 156 |
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| 157 | <para>Though it is a harmless message, the install stage of Glibc will at the
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| 158 | end complain about the absence of <filename>/tools/etc/ld.so.conf</filename>.
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| 159 | Prevent this confusing little warning with:</para>
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[1caa48e] | 160 |
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| 161 | <screen><userinput>mkdir /tools/etc
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| 162 | touch /tools/etc/ld.so.conf</userinput></screen>
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| 163 |
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[73aedd1d] | 164 | <para>Now install the package:</para>
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| 165 |
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| 166 | <screen><userinput>make install</userinput></screen>
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| 167 |
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| 168 | <para>Different countries and cultures have varying conventions for how to
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| 169 | communicate. These conventions range from very simple ones, such as the format
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| 170 | for representing dates and times, to very complex ones, such as the language
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[673b0d8] | 171 | spoken. The <quote>internationalization</quote> of GNU programs works by means
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| 172 | of <emphasis>locales</emphasis>.</para>
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[443cace] | 173 |
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| 174 | <note><para>If you are not running the test suites here in this chapter as per
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| 175 | our recommendation, there is little point in installing the locales now. We'll
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| 176 | be installing the locales in the next chapter.</para></note>
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| 177 |
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| 178 | <para>If you still want to install the Glibc locales anyway, the following
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| 179 | command will do so:</para>
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[73aedd1d] | 180 |
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| 181 | <screen><userinput>make localedata/install-locales</userinput></screen>
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| 182 |
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[d0a6c4c] | 183 | <para>An alternative to running the previous command is to install only those
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| 184 | locales which you need or want. This can be achieved by using the
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[90e3cb3] | 185 | <command>localedef</command> command. Information on this can be found in
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[d0a6c4c] | 186 | the <filename>INSTALL</filename> file in the Glibc source. However, there are
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| 187 | a number of locales that are essential for the tests of future packages to
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| 188 | pass, in particular, the <emphasis>libstdc++</emphasis> tests from GCC. The
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| 189 | following instructions, instead of the install-locales target above, will
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| 190 | install the minimum set of locales necessary for the tests to run
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| 191 | successfully:</para>
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[73aedd1d] | 192 |
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| 193 | <screen><userinput>mkdir -p /tools/lib/locale
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| 194 | localedef -i de_DE -f ISO-8859-1 de_DE
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| 195 | localedef -i de_DE@euro -f ISO-8859-15 de_DE@euro
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| 196 | localedef -i en_HK -f ISO-8859-1 en_HK
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| 197 | localedef -i en_PH -f ISO-8859-1 en_PH
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| 198 | localedef -i en_US -f ISO-8859-1 en_US
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| 199 | localedef -i es_MX -f ISO-8859-1 es_MX
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[efb32ca] | 200 | localedef -i fa_IR -f UTF-8 fa_IR
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[73aedd1d] | 201 | localedef -i fr_FR -f ISO-8859-1 fr_FR
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| 202 | localedef -i fr_FR@euro -f ISO-8859-15 fr_FR@euro
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| 203 | localedef -i it_IT -f ISO-8859-1 it_IT
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| 204 | localedef -i ja_JP -f EUC-JP ja_JP</userinput></screen>
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| 205 |
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| 206 | </sect2>
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[bc82645e] | 207 |
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[9652249] | 208 | <sect2 role="content"><title/>
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[5888299] | 209 | <para>The details on this package are found in <xref linkend="contents-glibc"/>.</para>
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[0868461] | 210 | </sect2>
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[5888299] | 211 |
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[bc82645e] | 212 | </sect1>
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