| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/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-eglibc" role="wrap">
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| 9 | <?dbhtml filename="eglibc.html"?>
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| 10 |
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| 11 | <title>EGLIBC-&eglibc-version;</title>
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| 12 |
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| 13 | <indexterm zone="ch-system-eglibc">
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| 14 | <primary sortas="a-EGLIBC">EGLIBC</primary>
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| 15 | </indexterm>
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| 16 |
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| 17 | <sect2 role="package">
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| 18 | <title/>
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| 19 |
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| 20 | <para>The EGLIBC package contains the main C library. This library provides
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| 21 | the basic routines for allocating memory, searching directories, opening and
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| 22 | closing files, reading and writing files, string handling, pattern matching,
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| 23 | arithmetic, and so on.</para>
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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 EGLIBC</title>
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| 29 |
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| 30 | <note os="z">
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| 31 | <para>Some packages outside of CLFS suggest installing GNU libiconv in
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| 32 | order to translate data from one encoding to another. The project's
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| 33 | home page (<ulink url="http://www.gnu.org/software/libiconv/"/>) says
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| 34 | <quote>This library provides an <function>iconv()</function>
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| 35 | implementation, for use on systems which don't have one, or whose
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| 36 | implementation cannot convert from/to Unicode.</quote> EGLIBC provides
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| 37 | an <function>iconv()</function> implementation and can convert from/to
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| 38 | Unicode, therefore libiconv is not required on a CLFS system.</para>
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| 39 | </note>
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| 40 |
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| 41 | <para os="mp1">The following patch fixes a compatibility issue with Make
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| 42 | 3.82 and newer.</para>
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| 43 |
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| 44 | <screen os="mp2"><userinput>patch -Np1 -i ../&eglibc-make382-patch;</userinput></screen>
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| 45 |
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| 46 | <para os="l3">The following sed makes sure that newly built EGLIBC is tested,
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| 47 | during make install, instead of the one we previously build:</para>
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| 48 |
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| 49 | <screen os="l4"><userinput>LINKER=$(readelf -l $(file /tools/lib/libc-* | cut -f1 -d:) | sed -n 's@.*interpret.*/tools\(.*\)]$@\1@p')
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| 50 | sed -i "s|libs -o|libs -L/usr/lib -Wl,-dynamic-linker=${LINKER} -o|" \
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| 51 | scripts/test-installation.pl
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| 52 | unset LINKER</userinput></screen>
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| 53 |
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| 54 | <para os="b">The EGLIBC build system is self-contained and will install
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| 55 | perfectly, even though the compiler specs file and linker are still
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| 56 | pointing at <filename class="directory">/tools</filename>. The specs
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| 57 | and linker cannot be adjusted before the EGLIBC install because the
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| 58 | EGLIBC Autoconf tests would give false results and defeat the goal
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| 59 | of achieving a clean build.</para>
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| 60 |
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| 61 | <para os="e">The EGLIBC documentation recommends building EGLIBC outside of the
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| 62 | source directory in a dedicated build directory:</para>
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| 63 |
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| 64 | <screen os="f"><userinput>mkdir -v ../eglibc-build
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| 65 | cd ../eglibc-build</userinput></screen>
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| 66 |
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| 67 | <para os="g">Prepare EGLIBC for compilation:</para>
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| 68 |
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| 69 | <screen os="h"><userinput>../eglibc-&eglibc-version;/configure --prefix=/usr \
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| 70 | --disable-profile --enable-add-ons --enable-kernel=2.6.0 \
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| 71 | --libexecdir=/usr/lib/eglibc</userinput></screen>
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| 72 |
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| 73 | <variablelist os="i">
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| 74 | <title>The meaning of the new configure option:</title>
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| 75 |
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| 76 | <varlistentry>
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| 77 | <term><parameter>--libexecdir=/usr/lib/eglibc</parameter></term>
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| 78 | <listitem>
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| 79 | <para>This changes the location of the <command>pt_chown</command>
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| 80 | program from its default of <filename
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| 81 | class="directory">/usr/libexec</filename> to <filename
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| 82 | class="directory">/usr/lib/eglibc</filename>.</para>
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| 83 | </listitem>
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| 84 | </varlistentry>
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| 85 | </variablelist>
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| 86 |
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| 87 | <para os="j">Compile the package:</para>
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| 88 |
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| 89 | <screen os="k"><userinput>make</userinput></screen>
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| 90 |
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| 91 | <important os="l">
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| 92 | <para>The test suite for EGLIBC is considered critical.
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| 93 | Do not skip it under any circumstance.</para>
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| 94 | </important>
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| 95 |
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| 96 | <para os="m">Before running the tests, copy a file from the source tree into our
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| 97 | build tree to prevent a couple of test failures, then run the tests:</para>
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| 98 |
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| 99 | <!-- items n,o,p no longer the master, use x86_64 which has no failures -->
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| 100 |
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| 101 | <screen os="n"><userinput>cp -v ../eglibc-&eglibc-version;/iconvdata/gconv-modules iconvdata
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| 102 | make -k check >eglibc-check-log 2>&1 ; grep Error eglibc-check-log</userinput></screen>
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| 103 |
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| 104 | <para os="o">The EGLIBC test suite is highly dependent on certain functions of
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| 105 | the host system, in particular the kernel. The posix/annexc test normally fails
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| 106 | and you should see <literal>Error 1 (ignored)</literal> in the output. Apart
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| 107 | from this, the EGLIBC test suite is always expected to pass. However, in certain
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| 108 | circumstances, some failures are unavoidable. If a test fails because of a missing
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| 109 | program (or missing symbolic link), or a segfault, you will see an error code
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| 110 | greater than 127 and the details will be in the log. More commonly, tests will
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| 111 | fail with <literal>Error 2</literal> - for these, the contents of the corresponding
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| 112 | <filename>.out</filename> file, e.g. <filename>posix/annexc.out</filename> may be
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| 113 | informative. Here is a list of the most common 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>If you have mounted the CLFS partition with the
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| 123 | <parameter>noatime</parameter> option, the <emphasis>atime</emphasis> test
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| 124 | will fail. As mentioned in <xref linkend="ch-partitioning-mounting"/>,
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| 125 | do not use the <parameter>noatime</parameter> option while building
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| 126 | CLFS.</para>
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| 127 | </listitem>
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| 128 | <listitem>
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| 129 | <para>When running on older and slower hardware, some tests
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| 130 | can fail because of test timeouts being exceeded.</para>
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| 131 | </listitem>
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| 132 | </itemizedlist>
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| 133 |
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| 134 | <para os="q">Though it is a harmless message, the install stage of EGLIBC will
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| 135 | complain about the absence of <filename>/etc/ld.so.conf</filename>.
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| 136 | Prevent this warning with:</para>
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| 137 |
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| 138 | <screen os="r"><userinput>touch /etc/ld.so.conf</userinput></screen>
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| 139 |
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| 140 | <para os="s">Install the package:</para>
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| 141 |
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| 142 | <screen os="t"><userinput>make install</userinput></screen>
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| 143 |
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| 144 | </sect2>
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| 145 |
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| 146 | <sect2 id="i18n-eglibc" role="configuration">
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| 147 | <title>Internationalization</title>
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| 148 |
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| 149 | <para>The locales that can make the system respond in a different
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| 150 | language were not installed by the above command. Install them
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| 151 | with:</para>
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| 152 |
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| 153 | <screen><userinput>make localedata/install-locales</userinput></screen>
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| 154 |
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| 155 | <para>To save time, an alternative to running the previous command (which
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| 156 | generates and installs every locale listed in the
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| 157 | <filename>eglibc-&eglibc-version;/localedata/SUPPORTED</filename> file) is
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| 158 | to install only those locales that are wanted and needed. This can be
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| 159 | achieved by using the <command>localedef</command> command. Information on
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| 160 | this command is located in the <filename>INSTALL</filename> file in the
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| 161 | EGLIBC source. However, there are a number of locales that are essential in
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| 162 | order for the tests of future packages to pass, in particular, the
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| 163 | <emphasis>libstdc++</emphasis> tests from GCC. The following instructions,
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| 164 | instead of the <parameter>install-locales</parameter> target used above,
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| 165 | will install the minimum set of locales necessary for the tests to run
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| 166 | successfully:</para>
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| 167 |
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| 168 | <screen role="nodump"><userinput>mkdir -pv /usr/lib/locale
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| 169 | localedef -i cs_CZ -f UTF-8 cs_CZ.UTF-8
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| 170 | localedef -i de_DE -f ISO-8859-1 de_DE
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| 171 | localedef -i de_DE@euro -f ISO-8859-15 de_DE@euro
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| 172 | localedef -i en_HK -f ISO-8859-1 en_HK
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| 173 | localedef -i en_PH -f ISO-8859-1 en_PH
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| 174 | localedef -i en_US -f ISO-8859-1 en_US
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| 175 | localedef -i es_MX -f ISO-8859-1 es_MX
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| 176 | localedef -i fa_IR -f UTF-8 fa_IR
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| 177 | localedef -i fr_FR -f ISO-8859-1 fr_FR
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| 178 | localedef -i fr_FR@euro -f ISO-8859-15 fr_FR@euro
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| 179 | localedef -i it_IT -f ISO-8859-1 it_IT
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| 180 | localedef -i ja_JP -f EUC-JP ja_JP</userinput></screen>
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| 181 |
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| 182 | <para>Some locales installed by the <command>make
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| 183 | localedata/install-locales</command> command above are not properly
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| 184 | supported by some applications that are in CLFS and CBLFS. Because
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| 185 | of the various problems that arise due to application programmers making
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| 186 | assumptions that break in such locales, CLFS should not be used in locales
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| 187 | that utilize multibyte character sets (including UTF-8) or right-to-left
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| 188 | writing order. Numerous unofficial and unstable patches are required to
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| 189 | fix these problems, and it has been decided by the CLFS developers not to
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| 190 | support such complex locales at this time. This applies to the ja_JP and
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| 191 | fa_IR locales as well—they have been installed only for GCC and
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| 192 | Gettext tests to pass, and the <command>watch</command> program (part of
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| 193 | the Procps package) does not work properly in them. Various attempts to
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| 194 | circumvent these restrictions are documented in internationalization-related
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| 195 | hints.</para>
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| 196 |
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| 197 | </sect2>
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| 198 |
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| 199 | <sect2 id="conf-eglibc" role="configuration">
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| 200 | <title>Configuring EGLIBC</title>
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| 201 |
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| 202 | <indexterm zone="conf-eglibc">
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| 203 | <primary sortas="e-/etc/nsswitch.conf">/etc/nsswitch.conf</primary>
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| 204 | </indexterm>
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| 205 |
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| 206 | <indexterm zone="conf-eglibc">
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| 207 | <primary sortas="e-/etc/localtime">/etc/localtime</primary>
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| 208 | </indexterm>
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| 209 |
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| 210 | <para>The <filename>/etc/nsswitch.conf</filename> file needs to be created
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| 211 | because, although EGLIBC provides defaults when this file is missing or
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| 212 | corrupt, the EGLIBC defaults do not work well in a networked environment.
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| 213 | The time zone also needs to be configured.</para>
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| 214 |
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| 215 | <para>Create a new file <filename>/etc/nsswitch.conf</filename> by running
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| 216 | the following:</para>
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| 217 |
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| 218 | <screen><userinput>cat > /etc/nsswitch.conf << "EOF"
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| 219 | <literal># Begin /etc/nsswitch.conf
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| 220 |
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| 221 | passwd: files
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| 222 | group: files
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| 223 | shadow: files
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| 224 |
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| 225 | hosts: files dns
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| 226 | networks: files
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| 227 |
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| 228 | protocols: files
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| 229 | services: files
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| 230 | ethers: files
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| 231 | rpc: files
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| 232 |
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| 233 | # End /etc/nsswitch.conf</literal>
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| 234 | EOF</userinput></screen>
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| 235 |
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| 236 | <para>To determine the local time zone, run the following script:</para>
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| 237 |
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| 238 | <screen role="nodump"><userinput>tzselect</userinput></screen>
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| 239 |
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| 240 | <para>After answering a few questions about the location, the script will
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| 241 | output the name of the time zone (e.g., <emphasis>EST5EDT</emphasis> or
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| 242 | <emphasis>Canada/Eastern</emphasis>). Then create the
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| 243 | <filename>/etc/localtime</filename> file by running:</para>
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| 244 |
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| 245 | <screen><userinput>cp -v --remove-destination /usr/share/zoneinfo/<replaceable>[xxx]</replaceable> \
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| 246 | /etc/localtime</userinput></screen>
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| 247 |
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| 248 | <para>Replace <replaceable>[xxx]</replaceable> with the name of the time zone
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| 249 | that <command>tzselect</command> provided (e.g., Canada/Eastern).</para>
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| 250 |
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| 251 | <variablelist>
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| 252 | <title>The meaning of the cp option:</title>
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| 253 |
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| 254 | <varlistentry>
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| 255 | <term><parameter>--remove-destination</parameter></term>
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| 256 | <listitem>
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| 257 | <para>This is needed to force removal of the already existing symbolic
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| 258 | link. The reason for copying the file instead of using a symlink is to
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| 259 | cover the situation where <filename class="directory">/usr</filename>
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| 260 | is on a separate partition. This could be important when booted into
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| 261 | single user mode.</para>
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| 262 | </listitem>
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| 263 | </varlistentry>
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| 264 | </variablelist>
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| 265 |
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| 266 | </sect2>
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| 267 |
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| 268 | <sect2 id="conf-ld" role="configuration">
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| 269 | <title>Configuring The Dynamic Loader</title>
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| 270 |
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| 271 | <indexterm zone="conf-ld">
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| 272 | <primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary>
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| 273 | </indexterm>
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| 274 |
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| 275 | <para os="ld-a">By default, the dynamic loader (<filename
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| 276 | class="libraryfile">/lib/ld-linux.so.2</filename>) searches through
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| 277 | <filename class="directory">/lib</filename> and <filename
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| 278 | class="directory">/usr/lib</filename> for dynamic libraries that are
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| 279 | needed by programs as they are run. However, if there are libraries in
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| 280 | directories other than <filename class="directory">/lib</filename> and
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| 281 | <filename class="directory">/usr/lib</filename>, these need to be
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| 282 | added to the <filename>/etc/ld.so.conf</filename> file in order
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| 283 | for the dynamic loader to find them. Two directories that are commonly
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| 284 | known to contain additional libraries are <filename
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| 285 | class="directory">/usr/local/lib</filename> and <filename
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| 286 | class="directory">/opt/lib</filename>, so add those directories to the
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| 287 | dynamic loader's search path.</para>
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| 288 |
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| 289 | <para os="ld-b">Create a new file <filename>/etc/ld.so.conf</filename> by running the
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| 290 | following:</para>
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| 291 |
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| 292 | <screen os="ld-c"><userinput>cat > /etc/ld.so.conf << "EOF"
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| 293 | <literal># Begin /etc/ld.so.conf
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| 294 |
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| 295 | /usr/local/lib
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| 296 | /opt/lib
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| 297 |
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| 298 | # End /etc/ld.so.conf</literal>
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| 299 | EOF</userinput></screen>
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| 300 |
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| 301 | </sect2>
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| 302 |
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| 303 | <sect2 id="contents-eglibc" role="content">
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| 304 | <title>Contents of EGLIBC</title>
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| 305 |
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| 306 | <segmentedlist>
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| 307 | <segtitle>Installed programs</segtitle>
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| 308 | <segtitle>Installed libraries</segtitle>
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| 309 | <segtitle>Installed directories</segtitle>
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| 310 |
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| 311 | <seglistitem>
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| 312 | <seg>catchsegv, gencat, getconf, getent, iconv, iconvconfig, ldconfig,
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| 313 | ldd, lddlibc4, locale, localedef, mtrace, nscd,
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| 314 | pcprofiledump, pt_chown, rpcgen, rpcinfo, sln, sprof, tzselect, xtrace,
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| 315 | zdump, and zic</seg>
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| 316 | <seg>ld.so, libBrokenLocale.[a,so], libSegFault.so, libanl.[a,so],
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| 317 | libbsd-compat.a, libc.[a,so], libc_nonshared.a, libcidn.[a,so],
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| 318 | libcrypt.[a,so], libdl.[a,so], libg.a, libieee.a, libm.[a,so],
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| 319 | libmcheck.a, libmemusage.so, libnsl.a, libnss_compat.so, libnss_dns.so,
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| 320 | libnss_files.so, libnss_hesiod.so, libnss_nis.so, libnss_nisplus.so,
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| 321 | libpcprofile.so, libpthread.[a,so], libpthread_nonshared.a,
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| 322 | libresolv.[a,so], librpcsvc.a, librt.[a,so], libthread_db.so, and
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| 323 | libutil.[a,so]</seg>
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| 324 | <seg>/usr/include/arpa, /usr/include/bits, /usr/include/gnu,
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| 325 | /usr/include/net, /usr/include/netash, /usr/include/netatalk,
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| 326 | /usr/include/netax25, /usr/include/neteconet, /usr/include/netinet,
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| 327 | /usr/include/netipx, /usr/include/netiucv, /usr/include/netpacket,
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| 328 | /usr/include/netrom, /usr/include/netrose, /usr/include/nfs,
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| 329 | /usr/include/protocols, /usr/include/rpc, /usr/include/rpcsvc,
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| 330 | /usr/include/sys, /usr/lib/gconv, /usr/lib/eglibc, /usr/lib/locale,
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| 331 | /usr/share/i18n, /usr/share/zoneinfo, /var/cache/ldconfig</seg>
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| 332 | </seglistitem>
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| 333 | </segmentedlist>
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| 334 |
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| 335 | <variablelist>
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| 336 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 337 | <?dbfo list-presentation="list"?>
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| 338 | <?dbhtml list-presentation="table"?>
|
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| 339 |
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| 340 | <varlistentry id="catchsegv">
|
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| 341 | <term><command>catchsegv</command></term>
|
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| 342 | <listitem>
|
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| 343 | <para>Can be used to create a stack trace when a program
|
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| 344 | terminates with a segmentation fault</para>
|
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| 345 | <indexterm zone="ch-system-eglibc catchsegv">
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| 346 | <primary sortas="b-catchsegv">catchsegv</primary>
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| 347 | </indexterm>
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| 348 | </listitem>
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| 349 | </varlistentry>
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| 350 |
|
|---|
| 351 | <varlistentry id="gencat">
|
|---|
| 352 | <term><command>gencat</command></term>
|
|---|
| 353 | <listitem>
|
|---|
| 354 | <para>Generates message catalogues</para>
|
|---|
| 355 | <indexterm zone="ch-system-eglibc gencat">
|
|---|
| 356 | <primary sortas="b-gencat">gencat</primary>
|
|---|
| 357 | </indexterm>
|
|---|
| 358 | </listitem>
|
|---|
| 359 | </varlistentry>
|
|---|
| 360 |
|
|---|
| 361 | <varlistentry id="getconf">
|
|---|
| 362 | <term><command>getconf</command></term>
|
|---|
| 363 | <listitem>
|
|---|
| 364 | <para>Displays the system configuration values for file system specific
|
|---|
| 365 | variables</para>
|
|---|
| 366 | <indexterm zone="ch-system-eglibc getconf">
|
|---|
| 367 | <primary sortas="b-getconf">getconf</primary>
|
|---|
| 368 | </indexterm>
|
|---|
| 369 | </listitem>
|
|---|
| 370 | </varlistentry>
|
|---|
| 371 |
|
|---|
| 372 | <varlistentry id="getent">
|
|---|
| 373 | <term><command>getent</command></term>
|
|---|
| 374 | <listitem>
|
|---|
| 375 | <para>Gets entries from an administrative database</para>
|
|---|
| 376 | <indexterm zone="ch-system-eglibc getent">
|
|---|
| 377 | <primary sortas="b-getent">getent</primary>
|
|---|
| 378 | </indexterm>
|
|---|
| 379 | </listitem>
|
|---|
| 380 | </varlistentry>
|
|---|
| 381 |
|
|---|
| 382 | <varlistentry id="iconv">
|
|---|
| 383 | <term><command>iconv</command></term>
|
|---|
| 384 | <listitem>
|
|---|
| 385 | <para>Performs character set conversion</para>
|
|---|
| 386 | <indexterm zone="ch-system-eglibc iconv">
|
|---|
| 387 | <primary sortas="b-iconv">iconv</primary>
|
|---|
| 388 | </indexterm>
|
|---|
| 389 | </listitem>
|
|---|
| 390 | </varlistentry>
|
|---|
| 391 |
|
|---|
| 392 | <varlistentry id="iconvconfig">
|
|---|
| 393 | <term><command>iconvconfig</command></term>
|
|---|
| 394 | <listitem>
|
|---|
| 395 | <para>Creates fastloading <command>iconv</command> module configuration
|
|---|
| 396 | files</para>
|
|---|
| 397 | <indexterm zone="ch-system-eglibc iconvconfig">
|
|---|
| 398 | <primary sortas="b-iconvconfig">iconvconfig</primary>
|
|---|
| 399 | </indexterm>
|
|---|
| 400 | </listitem>
|
|---|
| 401 | </varlistentry>
|
|---|
| 402 |
|
|---|
| 403 | <varlistentry id="ldconfig">
|
|---|
| 404 | <term><command>ldconfig</command></term>
|
|---|
| 405 | <listitem>
|
|---|
| 406 | <para>Configures the dynamic linker runtime bindings</para>
|
|---|
| 407 | <indexterm zone="ch-system-eglibc ldconfig">
|
|---|
| 408 | <primary sortas="b-ldconfig">ldconfig</primary>
|
|---|
| 409 | </indexterm>
|
|---|
| 410 | </listitem>
|
|---|
| 411 | </varlistentry>
|
|---|
| 412 |
|
|---|
| 413 | <varlistentry id="ldd">
|
|---|
| 414 | <term><command>ldd</command></term>
|
|---|
| 415 | <listitem>
|
|---|
| 416 | <para>Reports which shared libraries are required
|
|---|
| 417 | by each given program or shared library</para>
|
|---|
| 418 | <indexterm zone="ch-system-eglibc ldd">
|
|---|
| 419 | <primary sortas="b-ldd">ldd</primary>
|
|---|
| 420 | </indexterm>
|
|---|
| 421 | </listitem>
|
|---|
| 422 | </varlistentry>
|
|---|
| 423 |
|
|---|
| 424 | <varlistentry id="lddlibc4">
|
|---|
| 425 | <term><command>lddlibc4</command></term>
|
|---|
| 426 | <listitem>
|
|---|
| 427 | <para>Assists <command>ldd</command> with object files</para>
|
|---|
| 428 | <indexterm zone="ch-system-eglibc lddlibc4">
|
|---|
| 429 | <primary sortas="b-lddlibc4">lddlibc4</primary>
|
|---|
| 430 | </indexterm>
|
|---|
| 431 | </listitem>
|
|---|
| 432 | </varlistentry>
|
|---|
| 433 |
|
|---|
| 434 | <varlistentry id="locale">
|
|---|
| 435 | <term><command>locale</command></term>
|
|---|
| 436 | <listitem>
|
|---|
| 437 | <para>Tells the compiler to enable or disable the use of POSIX locales
|
|---|
| 438 | for built-in operations</para>
|
|---|
| 439 | <indexterm zone="ch-system-eglibc locale">
|
|---|
| 440 | <primary sortas="b-locale">locale</primary>
|
|---|
| 441 | </indexterm>
|
|---|
| 442 | </listitem>
|
|---|
| 443 | </varlistentry>
|
|---|
| 444 |
|
|---|
| 445 | <varlistentry id="localedef">
|
|---|
| 446 | <term><command>localedef</command></term>
|
|---|
| 447 | <listitem>
|
|---|
| 448 | <para>Compiles locale specifications</para>
|
|---|
| 449 | <indexterm zone="ch-system-eglibc localedef">
|
|---|
| 450 | <primary sortas="b-localedef">localedef</primary>
|
|---|
| 451 | </indexterm>
|
|---|
| 452 | </listitem>
|
|---|
| 453 | </varlistentry>
|
|---|
| 454 |
|
|---|
| 455 | <varlistentry id="mtrace">
|
|---|
| 456 | <term><command>mtrace</command></term>
|
|---|
| 457 | <listitem>
|
|---|
| 458 | <para>Reads and interprets a memory trace file and
|
|---|
| 459 | displays a summary in human-readable format</para>
|
|---|
| 460 | <indexterm zone="ch-system-eglibc mtrace">
|
|---|
| 461 | <primary sortas="b-mtrace">mtrace</primary>
|
|---|
| 462 | </indexterm>
|
|---|
| 463 | </listitem>
|
|---|
| 464 | </varlistentry>
|
|---|
| 465 |
|
|---|
| 466 | <varlistentry id="nscd">
|
|---|
| 467 | <term><command>nscd</command></term>
|
|---|
| 468 | <listitem>
|
|---|
| 469 | <para>A daemon that provides a cache for the most common name
|
|---|
| 470 | service requests</para>
|
|---|
| 471 | <indexterm zone="ch-system-eglibc nscd">
|
|---|
| 472 | <primary sortas="b-nscd">nscd</primary>
|
|---|
| 473 | </indexterm>
|
|---|
| 474 | </listitem>
|
|---|
| 475 | </varlistentry>
|
|---|
| 476 |
|
|---|
| 477 | <varlistentry id="pcprofiledump">
|
|---|
| 478 | <term><command>pcprofiledump</command></term>
|
|---|
| 479 | <listitem>
|
|---|
| 480 | <para>Dumps information generated by PC profiling</para>
|
|---|
| 481 | <indexterm zone="ch-system-eglibc pcprofiledump">
|
|---|
| 482 | <primary sortas="b-pcprofiledump">pcprofiledump</primary>
|
|---|
| 483 | </indexterm>
|
|---|
| 484 | </listitem>
|
|---|
| 485 | </varlistentry>
|
|---|
| 486 |
|
|---|
| 487 | <varlistentry id="pt_chown">
|
|---|
| 488 | <term><command>pt_chown</command></term>
|
|---|
| 489 | <listitem>
|
|---|
| 490 | <para>A helper program for <command>grantpt</command> to set the owner,
|
|---|
| 491 | group and access permissions of a slave pseudo terminal</para>
|
|---|
| 492 | <indexterm zone="ch-system-eglibc pt_chown">
|
|---|
| 493 | <primary sortas="b-pt_chown">pt_chown</primary>
|
|---|
| 494 | </indexterm>
|
|---|
| 495 | </listitem>
|
|---|
| 496 | </varlistentry>
|
|---|
| 497 |
|
|---|
| 498 | <varlistentry id="rpcgen">
|
|---|
| 499 | <term><command>rpcgen</command></term>
|
|---|
| 500 | <listitem>
|
|---|
| 501 | <para>Generates C code to implement the Remote Procecure Call (RPC)
|
|---|
| 502 | protocol</para>
|
|---|
| 503 | <indexterm zone="ch-system-eglibc rpcgen">
|
|---|
| 504 | <primary sortas="b-rpcgen">rpcgen</primary>
|
|---|
| 505 | </indexterm>
|
|---|
| 506 | </listitem>
|
|---|
| 507 | </varlistentry>
|
|---|
| 508 |
|
|---|
| 509 | <varlistentry id="rpcinfo">
|
|---|
| 510 | <term><command>rpcinfo</command></term>
|
|---|
| 511 | <listitem>
|
|---|
| 512 | <para>Makes an RPC call to an RPC server</para>
|
|---|
| 513 | <indexterm zone="ch-system-eglibc rpcinfo">
|
|---|
| 514 | <primary sortas="b-rpcinfo">rpcinfo</primary>
|
|---|
| 515 | </indexterm>
|
|---|
| 516 | </listitem>
|
|---|
| 517 | </varlistentry>
|
|---|
| 518 |
|
|---|
| 519 | <varlistentry id="sln">
|
|---|
| 520 | <term><command>sln</command></term>
|
|---|
| 521 | <listitem>
|
|---|
| 522 | <para>A statically linked program that creates symbolic links</para>
|
|---|
| 523 | <indexterm zone="ch-system-eglibc sln">
|
|---|
| 524 | <primary sortas="b-sln">sln</primary>
|
|---|
| 525 | </indexterm>
|
|---|
| 526 | </listitem>
|
|---|
| 527 | </varlistentry>
|
|---|
| 528 |
|
|---|
| 529 | <varlistentry id="sprof">
|
|---|
| 530 | <term><command>sprof</command></term>
|
|---|
| 531 | <listitem>
|
|---|
| 532 | <para>Reads and displays shared object profiling data</para>
|
|---|
| 533 | <indexterm zone="ch-system-eglibc sprof">
|
|---|
| 534 | <primary sortas="b-sprof">sprof</primary>
|
|---|
| 535 | </indexterm>
|
|---|
| 536 | </listitem>
|
|---|
| 537 | </varlistentry>
|
|---|
| 538 |
|
|---|
| 539 | <varlistentry id="tzselect">
|
|---|
| 540 | <term><command>tzselect</command></term>
|
|---|
| 541 | <listitem>
|
|---|
| 542 | <para>Asks the user about the location of the
|
|---|
| 543 | system and reports the corresponding time zone description</para>
|
|---|
| 544 | <indexterm zone="ch-system-eglibc tzselect">
|
|---|
| 545 | <primary sortas="b-tzselect">tzselect</primary>
|
|---|
| 546 | </indexterm>
|
|---|
| 547 | </listitem>
|
|---|
| 548 | </varlistentry>
|
|---|
| 549 |
|
|---|
| 550 | <varlistentry id="xtrace">
|
|---|
| 551 | <term><command>xtrace</command></term>
|
|---|
| 552 | <listitem>
|
|---|
| 553 | <para>Traces the execution of a program by
|
|---|
| 554 | printing the currently executed function</para>
|
|---|
| 555 | <indexterm zone="ch-system-eglibc xtrace">
|
|---|
| 556 | <primary sortas="b-xtrace">xtrace</primary>
|
|---|
| 557 | </indexterm>
|
|---|
| 558 | </listitem>
|
|---|
| 559 | </varlistentry>
|
|---|
| 560 |
|
|---|
| 561 | <varlistentry id="zdump">
|
|---|
| 562 | <term><command>zdump</command></term>
|
|---|
| 563 | <listitem>
|
|---|
| 564 | <para>The time zone dumper</para>
|
|---|
| 565 | <indexterm zone="ch-system-eglibc zdump">
|
|---|
| 566 | <primary sortas="b-zdump">zdump</primary>
|
|---|
| 567 | </indexterm>
|
|---|
| 568 | </listitem>
|
|---|
| 569 | </varlistentry>
|
|---|
| 570 |
|
|---|
| 571 | <varlistentry id="zic">
|
|---|
| 572 | <term><command>zic</command></term>
|
|---|
| 573 | <listitem>
|
|---|
| 574 | <para>The time zone compiler</para>
|
|---|
| 575 | <indexterm zone="ch-system-eglibc zic">
|
|---|
| 576 | <primary sortas="b-zic">zic</primary>
|
|---|
| 577 | </indexterm>
|
|---|
| 578 | </listitem>
|
|---|
| 579 | </varlistentry>
|
|---|
| 580 |
|
|---|
| 581 | <varlistentry id="ld.so">
|
|---|
| 582 | <term><filename class="libraryfile">ld.so</filename></term>
|
|---|
| 583 | <listitem>
|
|---|
| 584 | <para>The helper program for shared library executables</para>
|
|---|
| 585 | <indexterm zone="ch-system-eglibc ld.so">
|
|---|
| 586 | <primary sortas="c-ld.so">ld.so</primary>
|
|---|
| 587 | </indexterm>
|
|---|
| 588 | </listitem>
|
|---|
| 589 | </varlistentry>
|
|---|
| 590 |
|
|---|
| 591 | <varlistentry id="libBrokenLocale">
|
|---|
| 592 | <term><filename class="libraryfile">libBrokenLocale</filename></term>
|
|---|
| 593 | <listitem>
|
|---|
| 594 | <para>Used by programs, such as Mozilla, to solve broken locales</para>
|
|---|
| 595 | <indexterm zone="ch-system-eglibc libBrokenLocale">
|
|---|
| 596 | <primary sortas="c-libBrokenLocale">libBrokenLocale</primary>
|
|---|
| 597 | </indexterm>
|
|---|
| 598 | </listitem>
|
|---|
| 599 | </varlistentry>
|
|---|
| 600 |
|
|---|
| 601 | <varlistentry id="libSegFault">
|
|---|
| 602 | <term><filename class="libraryfile">libSegFault</filename></term>
|
|---|
| 603 | <listitem>
|
|---|
| 604 | <para>The segmentation fault signal handler</para>
|
|---|
| 605 | <indexterm zone="ch-system-eglibc libSegFault">
|
|---|
| 606 | <primary sortas="c-libSegFault">libSegFault</primary>
|
|---|
| 607 | </indexterm>
|
|---|
| 608 | </listitem>
|
|---|
| 609 | </varlistentry>
|
|---|
| 610 |
|
|---|
| 611 | <varlistentry id="libanl">
|
|---|
| 612 | <term><filename class="libraryfile">libanl</filename></term>
|
|---|
| 613 | <listitem>
|
|---|
| 614 | <para>An asynchronous name lookup library</para>
|
|---|
| 615 | <indexterm zone="ch-system-eglibc libanl">
|
|---|
| 616 | <primary sortas="c-libanl">libanl</primary>
|
|---|
| 617 | </indexterm>
|
|---|
| 618 | </listitem>
|
|---|
| 619 | </varlistentry>
|
|---|
| 620 |
|
|---|
| 621 | <varlistentry id="libbsd-compat">
|
|---|
| 622 | <term><filename class="libraryfile">libbsd-compat</filename></term>
|
|---|
| 623 | <listitem>
|
|---|
| 624 | <para>Provides the portability needed
|
|---|
| 625 | in order to run certain Berkey Software Distribution (BSD) programs
|
|---|
| 626 | under Linux</para>
|
|---|
| 627 | <indexterm zone="ch-system-eglibc libbsd-compat">
|
|---|
| 628 | <primary sortas="c-libbsd-compat">libbsd-compat</primary>
|
|---|
| 629 | </indexterm>
|
|---|
| 630 | </listitem>
|
|---|
| 631 | </varlistentry>
|
|---|
| 632 |
|
|---|
| 633 | <varlistentry id="libc">
|
|---|
| 634 | <term><filename class="libraryfile">libc</filename></term>
|
|---|
| 635 | <listitem>
|
|---|
| 636 | <para>The main C library</para>
|
|---|
| 637 | <indexterm zone="ch-system-eglibc libc">
|
|---|
| 638 | <primary sortas="c-libc">libc</primary>
|
|---|
| 639 | </indexterm>
|
|---|
| 640 | </listitem>
|
|---|
| 641 | </varlistentry>
|
|---|
| 642 |
|
|---|
| 643 | <varlistentry id="libcidn">
|
|---|
| 644 | <term><filename class="libraryfile">libcidn</filename></term>
|
|---|
| 645 | <listitem>
|
|---|
| 646 | <para>Used internally by EGLIBC for handling internationalized domain
|
|---|
| 647 | names in the <function>getaddrinfo()</function> function</para>
|
|---|
| 648 | <indexterm zone="ch-system-eglibc libcidn">
|
|---|
| 649 | <primary sortas="c-libcidn">libcidn</primary>
|
|---|
| 650 | </indexterm>
|
|---|
| 651 | </listitem>
|
|---|
| 652 | </varlistentry>
|
|---|
| 653 |
|
|---|
| 654 | <varlistentry id="libcrypt">
|
|---|
| 655 | <term><filename class="libraryfile">libcrypt</filename></term>
|
|---|
| 656 | <listitem>
|
|---|
| 657 | <para>The cryptography library</para>
|
|---|
| 658 | <indexterm zone="ch-system-eglibc libcrypt">
|
|---|
| 659 | <primary sortas="c-libcrypt">libcrypt</primary>
|
|---|
| 660 | </indexterm>
|
|---|
| 661 | </listitem>
|
|---|
| 662 | </varlistentry>
|
|---|
| 663 |
|
|---|
| 664 | <varlistentry id="libdl">
|
|---|
| 665 | <term><filename class="libraryfile">libdl</filename></term>
|
|---|
| 666 | <listitem>
|
|---|
| 667 | <para>The dynamic linking interface library</para>
|
|---|
| 668 | <indexterm zone="ch-system-eglibc libdl">
|
|---|
| 669 | <primary sortas="c-libdl">libdl</primary>
|
|---|
| 670 | </indexterm>
|
|---|
| 671 | </listitem>
|
|---|
| 672 | </varlistentry>
|
|---|
| 673 |
|
|---|
| 674 | <varlistentry id="libg">
|
|---|
| 675 | <term><filename class="libraryfile">libg</filename></term>
|
|---|
| 676 | <listitem>
|
|---|
| 677 | <para>A runtime library for <command>g++</command></para>
|
|---|
| 678 | <indexterm zone="ch-system-eglibc libg">
|
|---|
| 679 | <primary sortas="c-libg">libg</primary>
|
|---|
| 680 | </indexterm>
|
|---|
| 681 | </listitem>
|
|---|
| 682 | </varlistentry>
|
|---|
| 683 |
|
|---|
| 684 | <varlistentry id="libieee">
|
|---|
| 685 | <term><filename class="libraryfile">libieee</filename></term>
|
|---|
| 686 | <listitem>
|
|---|
| 687 | <para>The Institute of Electrical and Electronic Engineers (IEEE)
|
|---|
| 688 | floating point library</para>
|
|---|
| 689 | <indexterm zone="ch-system-eglibc libieee">
|
|---|
| 690 | <primary sortas="c-libieee">libieee</primary>
|
|---|
| 691 | </indexterm>
|
|---|
| 692 | </listitem>
|
|---|
| 693 | </varlistentry>
|
|---|
| 694 |
|
|---|
| 695 | <varlistentry id="libm">
|
|---|
| 696 | <term><filename class="libraryfile">libm</filename></term>
|
|---|
| 697 | <listitem>
|
|---|
| 698 | <para>The mathematical library</para>
|
|---|
| 699 | <indexterm zone="ch-system-eglibc libm">
|
|---|
| 700 | <primary sortas="c-libm">libm</primary>
|
|---|
| 701 | </indexterm>
|
|---|
| 702 | </listitem>
|
|---|
| 703 | </varlistentry>
|
|---|
| 704 |
|
|---|
| 705 | <varlistentry id="libmcheck">
|
|---|
| 706 | <term><filename class="libraryfile">libmcheck</filename></term>
|
|---|
| 707 | <listitem>
|
|---|
| 708 | <para>Contains code run at boot</para>
|
|---|
| 709 | <indexterm zone="ch-system-eglibc libmcheck">
|
|---|
| 710 | <primary sortas="c-libmcheck">libmcheck</primary>
|
|---|
| 711 | </indexterm>
|
|---|
| 712 | </listitem>
|
|---|
| 713 | </varlistentry>
|
|---|
| 714 |
|
|---|
| 715 | <varlistentry id="libmemusage">
|
|---|
| 716 | <term><filename class="libraryfile">libmemusage</filename></term>
|
|---|
| 717 | <listitem>
|
|---|
| 718 | <para>Used by <command>memusage</command> (included in EGLIBC, but
|
|---|
| 719 | not built in a base CLFS system as it has additional dependencies)
|
|---|
| 720 | to help collect information about the memory usage of a program</para>
|
|---|
| 721 | <indexterm zone="ch-system-eglibc libmemusage">
|
|---|
| 722 | <primary sortas="c-libmemusage">libmemusage</primary>
|
|---|
| 723 | </indexterm>
|
|---|
| 724 | </listitem>
|
|---|
| 725 | </varlistentry>
|
|---|
| 726 |
|
|---|
| 727 | <varlistentry id="libnsl">
|
|---|
| 728 | <term><filename class="libraryfile">libnsl</filename></term>
|
|---|
| 729 | <listitem>
|
|---|
| 730 | <para>The network services library</para>
|
|---|
| 731 | <indexterm zone="ch-system-eglibc libnsl">
|
|---|
| 732 | <primary sortas="c-libnsl">libnsl</primary>
|
|---|
| 733 | </indexterm>
|
|---|
| 734 | </listitem>
|
|---|
| 735 | </varlistentry>
|
|---|
| 736 |
|
|---|
| 737 | <varlistentry id="libnss">
|
|---|
| 738 | <term><filename class="libraryfile">libnss</filename></term>
|
|---|
| 739 | <listitem>
|
|---|
| 740 | <para>The Name Service Switch libraries, containing functions for
|
|---|
| 741 | resolving host names, user names, group names, aliases, services,
|
|---|
| 742 | protocols, etc.</para>
|
|---|
| 743 | <indexterm zone="ch-system-eglibc libnss">
|
|---|
| 744 | <primary sortas="c-libnss">libnss</primary>
|
|---|
| 745 | </indexterm>
|
|---|
| 746 | </listitem>
|
|---|
| 747 | </varlistentry>
|
|---|
| 748 |
|
|---|
| 749 | <varlistentry id="libpcprofile">
|
|---|
| 750 | <term><filename class="libraryfile">libpcprofile</filename></term>
|
|---|
| 751 | <listitem>
|
|---|
| 752 | <para>Contains profiling functions used to track the amount of CPU
|
|---|
| 753 | time spent in specific source code lines</para>
|
|---|
| 754 | <indexterm zone="ch-system-eglibc libpcprofile">
|
|---|
| 755 | <primary sortas="c-libpcprofile">libpcprofile</primary>
|
|---|
| 756 | </indexterm>
|
|---|
| 757 | </listitem>
|
|---|
| 758 | </varlistentry>
|
|---|
| 759 |
|
|---|
| 760 | <varlistentry id="libpthread">
|
|---|
| 761 | <term><filename class="libraryfile">libpthread</filename></term>
|
|---|
| 762 | <listitem>
|
|---|
| 763 | <para>The POSIX threads library</para>
|
|---|
| 764 | <indexterm zone="ch-system-eglibc libpthread">
|
|---|
| 765 | <primary sortas="c-libpthread">libpthread</primary>
|
|---|
| 766 | </indexterm>
|
|---|
| 767 | </listitem>
|
|---|
| 768 | </varlistentry>
|
|---|
| 769 |
|
|---|
| 770 | <varlistentry id="libresolv">
|
|---|
| 771 | <term><filename class="libraryfile">libresolv</filename></term>
|
|---|
| 772 | <listitem>
|
|---|
| 773 | <para>Contains functions for creating, sending, and interpreting
|
|---|
| 774 | packets to the Internet domain name servers</para>
|
|---|
| 775 | <indexterm zone="ch-system-eglibc libresolv">
|
|---|
| 776 | <primary sortas="c-libresolv">libresolv</primary>
|
|---|
| 777 | </indexterm>
|
|---|
| 778 | </listitem>
|
|---|
| 779 | </varlistentry>
|
|---|
| 780 |
|
|---|
| 781 | <varlistentry id="librpcsvc">
|
|---|
| 782 | <term><filename class="libraryfile">librpcsvc</filename></term>
|
|---|
| 783 | <listitem>
|
|---|
| 784 | <para>Contains functions providing miscellaneous RPC services</para>
|
|---|
| 785 | <indexterm zone="ch-system-eglibc librpcsvc">
|
|---|
| 786 | <primary sortas="c-librpcsvc">librpcsvc</primary>
|
|---|
| 787 | </indexterm>
|
|---|
| 788 | </listitem>
|
|---|
| 789 | </varlistentry>
|
|---|
| 790 |
|
|---|
| 791 | <varlistentry id="librt">
|
|---|
| 792 | <term><filename class="libraryfile">librt</filename></term>
|
|---|
| 793 | <listitem>
|
|---|
| 794 | <para>Contains functions providing most of the interfaces specified by
|
|---|
| 795 | the POSIX.1b Realtime Extension</para>
|
|---|
| 796 | <indexterm zone="ch-system-eglibc librt">
|
|---|
| 797 | <primary sortas="c-librt">librt</primary>
|
|---|
| 798 | </indexterm>
|
|---|
| 799 | </listitem>
|
|---|
| 800 | </varlistentry>
|
|---|
| 801 |
|
|---|
| 802 | <varlistentry id="libthread_db">
|
|---|
| 803 | <term><filename class="libraryfile">libthread_db</filename></term>
|
|---|
| 804 | <listitem>
|
|---|
| 805 | <para>Contains functions useful for
|
|---|
| 806 | building debuggers for multi-threaded programs</para>
|
|---|
| 807 | <indexterm zone="ch-system-eglibc libthread_db">
|
|---|
| 808 | <primary sortas="c-libthread_db">libthread_db</primary>
|
|---|
| 809 | </indexterm>
|
|---|
| 810 | </listitem>
|
|---|
| 811 | </varlistentry>
|
|---|
| 812 |
|
|---|
| 813 | <varlistentry id="libutil">
|
|---|
| 814 | <term><filename class="libraryfile">libutil</filename></term>
|
|---|
| 815 | <listitem>
|
|---|
| 816 | <para>Contains code for <quote>standard</quote> functions used in
|
|---|
| 817 | many different Unix utilities</para>
|
|---|
| 818 | <indexterm zone="ch-system-eglibc libutil">
|
|---|
| 819 | <primary sortas="c-libutil">libutil</primary>
|
|---|
| 820 | </indexterm>
|
|---|
| 821 | </listitem>
|
|---|
| 822 | </varlistentry>
|
|---|
| 823 |
|
|---|
| 824 | </variablelist>
|
|---|
| 825 |
|
|---|
| 826 | </sect2>
|
|---|
| 827 |
|
|---|
| 828 | </sect1>
|
|---|
