| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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| 7 |
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| 8 | <sect1 id="ch-system-glibc" role="wrap">
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| 9 | <?dbhtml filename="glibc-64bit.html"?>
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| 10 |
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| 11 | <title>Glibc-&glibc-version; 64-Bit</title>
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| 12 |
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| 13 | <indexterm zone="ch-system-glibc">
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| 14 | <primary sortas="a-Glibc">Glibc</primary>
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| 15 | </indexterm>
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| 16 |
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| 17 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 18 | href="glibc.xml"
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| 19 | xpointer="xpointer(//*[@role='package'])"/>
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| 20 |
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| 21 | <sect2 role="installation">
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| 22 | <title>Installation of Glibc</title>
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| 23 |
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| 24 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 25 | href="glibc.xml"
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| 26 | xpointer="xpointer(//*[@os='b'])"/>
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| 27 |
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| 28 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 29 | href="../common/glibc.xml"
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| 30 | xpointer="xpointer(//*[@os='c'])"/>
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| 31 |
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| 32 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 33 | href="../common/glibc.xml"
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| 34 | xpointer="xpointer(//*[@os='d'])"/>
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| 35 |
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| 36 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 37 | href="../common/glibc.xml"
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| 38 | xpointer="xpointer(//*[@os='p1'])"/>
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| 39 |
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| 40 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 41 | href="../common/glibc.xml"
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| 42 | xpointer="xpointer(//*[@os='p2'])"/>
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| 43 |
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| 44 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 45 | href="glibc.xml"
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| 46 | xpointer="xpointer(//*[@os='s1'])"/>
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| 47 |
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| 48 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 49 | href="glibc.xml"
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| 50 | xpointer="xpointer(//*[@os='s2'])"/>
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| 51 |
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| 52 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 53 | href="glibc.xml"
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| 54 | xpointer="xpointer(//*[@os='e'])"/>
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| 55 |
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| 56 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 57 | href="glibc.xml"
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| 58 | xpointer="xpointer(//*[@os='f'])"/>
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| 59 |
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| 60 | <para os="m1">Tell Glibc to install its 64-bit libraries into
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| 61 | <filename class="directory">/lib64</filename>:</para>
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| 62 |
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| 63 | <screen os="m2"><userinput>echo "slibdir=/lib64" >> configparms</userinput></screen>
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| 64 |
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| 65 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 66 | href="glibc.xml"
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| 67 | xpointer="xpointer(//*[@os='g'])"/>
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| 68 |
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| 69 | <screen os="h"><userinput>CC="gcc ${BUILD64}" CXX="g++ ${BUILD64}" \
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| 70 | ../glibc-&glibc-version;/configure --prefix=/usr \
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| 71 | --disable-profile --enable-add-ons --enable-kernel=2.6.0 \
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| 72 | --libexecdir=/usr/lib64/glibc --libdir=/usr/lib64</userinput></screen>
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| 73 |
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| 74 | <variablelist os="i">
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| 75 | <title>The meaning of the new configure option:</title>
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| 76 |
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| 77 | <varlistentry>
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| 78 | <term><parameter>--libexecdir=/usr/lib64/glibc</parameter></term>
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| 79 | <listitem>
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| 80 | <para>This changes the location of the <command>pt_chown</command>
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| 81 | program from its default of <filename
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| 82 | class="directory">/usr/libexec</filename> to <filename
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| 83 | class="directory">/usr/lib64/glibc</filename>.</para>
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| 84 | </listitem>
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| 85 | </varlistentry>
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| 86 | </variablelist>
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| 87 |
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| 88 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 89 | href="glibc.xml"
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| 90 | xpointer="xpointer(//*[@os='j'])"/>
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| 91 |
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| 92 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 93 | href="glibc.xml"
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| 94 | xpointer="xpointer(//*[@os='k'])"/>
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| 95 |
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| 96 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 97 | href="glibc.xml"
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| 98 | xpointer="xpointer(//*[@os='l'])"/>
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| 99 |
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| 100 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 101 | href="glibc.xml"
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| 102 | xpointer="xpointer(//*[@os='m'])"/>
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| 103 |
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| 104 | <!-- items n,o,p here are now the master, not multilib, because
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| 105 | the tests are known to all pass on multilib_64 -->
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| 106 |
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| 107 | <screen os="n"><userinput>make check</userinput></screen>
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| 108 |
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| 109 | <para os="o">The Glibc test suite is highly dependent on certain functions of
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| 110 | the host system, in particular the kernel. In general, the Glibc test
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| 111 | suite is always expected to pass. However, in certain circumstances,
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| 112 | some failures are unavoidable. This is a list of the most common
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| 113 | issues:</para>
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| 114 |
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| 115 | <itemizedlist os="p">
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| 116 | <listitem>
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| 117 | <para>The <emphasis>math</emphasis> tests sometimes fail.
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| 118 | Certain optimization settings are known to be a
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| 119 | factor here.</para>
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| 120 | </listitem>
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| 121 | <listitem>
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| 122 | <para>The <emphasis>gettext</emphasis> test sometimes fails due to
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| 123 | host system issues. The exact reasons are not yet clear.</para>
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| 124 | </listitem>
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| 125 | <listitem>
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| 126 | <para>If you have mounted the CLFS partition with the
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| 127 | <parameter>noatime</parameter> option, the <emphasis>atime</emphasis> test
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| 128 | will fail. As mentioned in <xref linkend="ch-partitioning-mounting"/>,
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| 129 | do not use the <parameter>noatime</parameter> option while building
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| 130 | CLFS.</para>
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| 131 | </listitem>
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| 132 | <listitem>
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| 133 | <para>When running on older and slower hardware, some tests
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| 134 | can fail because of test timeouts being exceeded.</para>
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| 135 | </listitem>
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| 136 | </itemizedlist>
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| 137 |
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| 138 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 139 | href="glibc.xml"
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| 140 | xpointer="xpointer(//*[@os='s'])"/>
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| 141 |
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| 142 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 143 | href="glibc.xml"
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| 144 | xpointer="xpointer(//*[@os='t'])"/>
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| 145 |
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| 146 | </sect2>
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| 147 |
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| 148 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 149 | href="../common/glibc.xml"
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| 150 | xpointer="xpointer(id('i18n-glibc'))"/>
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| 151 |
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| 152 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 153 | href="../common/glibc.xml"
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| 154 | xpointer="xpointer(id('conf-glibc'))"/>
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| 155 |
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| 156 | <sect2 id="conf-ld" role="configuration">
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| 157 | <title>Configuring The Dynamic Loader</title>
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| 158 |
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| 159 | <indexterm zone="conf-ld">
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| 160 | <primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary>
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| 161 | </indexterm>
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| 162 |
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| 163 | <para>By default, the dynamic loader (<filename
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| 164 | class="libraryfile">/lib/ld-linux.so.2</filename>) searches through
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| 165 | <filename class="directory">/lib</filename>,
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| 166 | <filename class="directory">/lib64</filename>,
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| 167 | <filename class="directory">/usr/lib</filename>,
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| 168 | and <filename class="directory">/usr/lib64</filename> for dynamic
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| 169 | libraries that are needed by programs as they are run. However, if
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| 170 | there are libraries in directories other than these, they need to be
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| 171 | added to the <filename>/etc/ld.so.conf</filename> file in order
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| 172 | for the dynamic loader to find them. Some directories that are commonly
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| 173 | known to contain additional libraries are
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| 174 | <filename class="directory">/usr/local/lib</filename>,
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| 175 | <filename class="directory">/usr/local/lib64</filename>,
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| 176 | <filename class="directory">/opt/lib</filename>,
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| 177 | and <filename class="directory">/opt/lib64</filename>,
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| 178 | so add those directories to the dynamic loader's search path.</para>
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| 179 |
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| 180 | <para>Create a new file <filename>/etc/ld.so.conf</filename> by running the
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| 181 | following:</para>
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| 182 |
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| 183 | <screen><userinput>cat > /etc/ld.so.conf << "EOF"
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| 184 | <literal># Begin /etc/ld.so.conf
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| 185 |
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| 186 | /usr/local/lib
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| 187 | /usr/local/lib64
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| 188 | /opt/lib
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| 189 | /opt/lib64
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| 190 |
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| 191 | # End /etc/ld.so.conf</literal>
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| 192 | EOF</userinput></screen>
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| 193 |
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| 194 | </sect2>
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| 195 |
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| 196 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 197 | href="../common/glibc.xml"
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| 198 | xpointer="xpointer(id('contents-glibc'))"/>
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| 199 |
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| 200 | </sect1>
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