[673b0d8] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[73c180db] | 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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[673b0d8] | 4 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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[73c180db] | 7 |
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[81fd230] | 8 | <sect1 id="ch-system-glibc" role="wrap">
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[73c180db] | 9 | <?dbhtml filename="glibc.html"?>
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| 10 |
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| 11 | <title>Glibc-&glibc-version;</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 | <sect2 role="package">
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| 18 | <title/>
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| 19 |
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| 20 | <para>The Glibc 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 | <segmentedlist>
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| 26 | <segtitle>&buildtime;</segtitle>
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| 27 | <segtitle>&diskspace;</segtitle>
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| 28 |
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| 29 | <seglistitem>
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| 30 | <seg>16.7 SBU</seg>
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| 31 | <seg>500 MB</seg>
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| 32 | </seglistitem>
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| 33 | </segmentedlist>
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| 34 |
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| 35 | <segmentedlist>
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| 36 | <segtitle>&dependencies;</segtitle>
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| 37 |
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| 38 | <seglistitem>
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| 39 | <seg>Bash, Binutils, Coreutils, Diffutils, Gawk, GCC, Gettext, Grep,
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| 40 | Make, Perl, Sed, and Texinfo</seg>
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| 41 | </seglistitem>
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| 42 | </segmentedlist>
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| 43 |
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| 44 | </sect2>
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| 45 |
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| 46 | <sect2 role="installation">
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| 47 | <title>Installation of Glibc</title>
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| 48 |
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| 49 | <note>
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| 50 | <para>Some packages outside of LFS suggest installing GNU libiconv in
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| 51 | order to translate data from one encoding to another. The project's
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| 52 | home page (<ulink url="http://www.gnu.org/software/libiconv/"/>) says
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| 53 | <quote>This library provides an <function>iconv()</function>
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| 54 | implementation, for use on systems which don't have one, or whose
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| 55 | implementation cannot convert from/to Unicode.</quote> Glibc provides
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| 56 | an <function>iconv()</function> implementation and can convert from/to
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| 57 | Unicode, therefore libiconv is not required on an LFS system.</para>
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| 58 | </note>
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| 59 |
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| 60 | <para>The Glibc build system is self-contained and will install
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| 61 | perfectly, even though the compiler specs file and linker are still
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| 62 | pointing at <filename class="directory">/tools</filename>. The specs
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| 63 | and linker cannot be adjusted before the Glibc install because the
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| 64 | Glibc autoconf tests would give false results and defeat the goal
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| 65 | of achieving a clean build.</para>
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| 66 |
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| 67 | <para>The glibc-libidn tarball adds support for internationalized domain
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| 68 | names (IDN) to Glibc. Many programs that support IDN require the full
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| 69 | <filename class="libraryfile">libidn</filename> library (see
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| 70 | <ulink url="&blfs-root;view/svn/general/libidn.html"/>), not this add-on.
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| 71 | Unpack the tarball from within the Glibc source directory:</para>
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[46a2e9c] | 72 |
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[e6ab4b5] | 73 | <screen><userinput>tar -xf ../glibc-libidn-&glibc-version;.tar.bz2</userinput></screen>
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[46a2e9c] | 74 |
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[73c180db] | 75 | <para>In the vi_VN.TCVN locale, <command>bash</command> enters an infinite loop
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| 76 | at startup. It is unknown whether this is a <command>bash</command> bug or a
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| 77 | Glibc problem. Disable installation of this locale in order to avoid the
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| 78 | problem:</para>
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[46a2e9c] | 79 |
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| 80 | <screen><userinput>sed -i '/vi_VN.TCVN/d' localedata/SUPPORTED</userinput></screen>
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| 81 |
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[73c180db] | 82 | <para>When running <command>make install</command>, a script called
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| 83 | <filename>test-installation.pl</filename> performs a small sanity test on
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| 84 | our newly installed Glibc. However, because our toolchain still points to
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| 85 | the <filename class="directory">/tools</filename> directory, the sanity
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| 86 | test would be carried out against the wrong Glibc. We can force the script
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| 87 | to check the Glibc we have just installed with the following:</para>
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[e6ab4b5] | 88 |
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| 89 | <screen><userinput>sed -i \
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| 90 | 's|libs -o|libs -L/usr/lib -Wl,-dynamic-linker=/lib/ld-linux.so.2 -o|' \
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| 91 | scripts/test-installation.pl</userinput></screen>
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| 92 |
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[73c180db] | 93 | <para>The Glibc documentation recommends building Glibc outside of the source
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| 94 | directory in a dedicated build directory:</para>
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[73aedd1d] | 95 |
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[5998892] | 96 | <screen><userinput>mkdir -v ../glibc-build
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[73aedd1d] | 97 | cd ../glibc-build</userinput></screen>
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| 98 |
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[73c180db] | 99 | <para>Prepare Glibc for compilation:</para>
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[73aedd1d] | 100 |
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[9dfc02f] | 101 | <screen><userinput>../glibc-&glibc-version;/configure --prefix=/usr \
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[084db8d] | 102 | --disable-profile --enable-add-ons \
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[8e97f32] | 103 | --enable-kernel=2.6.0 --libexecdir=/usr/lib/glibc</userinput></screen>
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[73aedd1d] | 104 |
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[73c180db] | 105 | <variablelist>
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| 106 | <title>The meaning of the new configure options:</title>
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| 107 |
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| 108 | <varlistentry>
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| 109 | <term><parameter>--libexecdir=/usr/lib/glibc</parameter></term>
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| 110 | <listitem>
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| 111 | <para>This changes the location of the <command>pt_chown</command>
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| 112 | program from its default of <filename
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| 113 | class="directory">/usr/libexec</filename> to <filename
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| 114 | class="directory">/usr/lib/glibc</filename>.</para>
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| 115 | </listitem>
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| 116 | </varlistentry>
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[81fd230] | 117 |
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[73c180db] | 118 | </variablelist>
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[81fd230] | 119 |
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[73c180db] | 120 | <para>Compile the package:</para>
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[73aedd1d] | 121 |
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| 122 | <screen><userinput>make</userinput></screen>
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| 123 |
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[73c180db] | 124 | <important>
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| 125 | <para>In this section, the test suite for Glibc is considered critical.
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| 126 | Do not skip it under any circumstance.</para>
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| 127 | </important>
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[81fd230] | 128 |
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[73c180db] | 129 | <para>Test the results:</para>
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[73aedd1d] | 130 |
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[03e9011] | 131 | <screen><userinput>make -k check >glibc-check-log 2>&1
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| 132 | grep Error glibc-check-log</userinput></screen>
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[2e02c35] | 133 |
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[73c180db] | 134 | <para>On at least i686 you can expect to see failures in the
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| 135 | <emphasis>test-double </emphasis> and <emphasis>test-idouble</emphasis>
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| 136 | math tests with gcc-&gcc-version;, as well as an expected (ignored)
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| 137 | failure in <emphasis> posix/annexc</emphasis>. These two failures in
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| 138 | the math tests appear to be harmless.</para>
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| 139 |
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| 140 | <para>The Glibc test suite is highly dependent on certain functions of
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| 141 | the host system, in particular the kernel. In certain circumstances,
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| 142 | some failures are unavoidable. This is a list of the most common
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| 143 | issues:</para>
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| 144 |
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| 145 | <itemizedlist>
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| 146 | <listitem>
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| 147 | <para>The <emphasis>math</emphasis> tests sometimes fail in other
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| 148 | tests when running on systems where the CPU is not a relatively
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| 149 | new genuine Intel or authentic AMD. Certain optimization settings
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| 150 | are also known to be a factor here.</para>
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| 151 | </listitem>
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| 152 | <listitem>
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| 153 | <para>The <emphasis>gettext</emphasis> test sometimes fails due to
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| 154 | host system issues. The exact reasons are not yet clear.</para>
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| 155 | </listitem>
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| 156 | <listitem>
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| 157 | <para>If you have mounted the LFS partition with the
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| 158 | <parameter>noatime</parameter> option, the <emphasis>atime</emphasis>
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| 159 | test will fail. As mentioned in <xref linkend="space-mounting"/>, do not
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| 160 | use the <parameter>noatime</parameter> option while building LFS.</para>
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| 161 | </listitem>
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| 162 | <listitem>
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| 163 | <para>When running on older and slower hardware, some tests
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| 164 | can fail because of test timeouts being exceeded.</para>
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| 165 | </listitem>
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| 166 | </itemizedlist>
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| 167 |
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| 168 | <para>Though it is a harmless message, the install stage of Glibc will
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| 169 | complain about the absence of <filename>/etc/ld.so.conf</filename>.
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| 170 | Prevent this warning with:</para>
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[1caa48e] | 171 |
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| 172 | <screen><userinput>touch /etc/ld.so.conf</userinput></screen>
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| 173 |
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[73c180db] | 174 | <para>Install the package:</para>
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[73aedd1d] | 175 |
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[e6ab4b5] | 176 | <screen><userinput>make install</userinput></screen>
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[73aedd1d] | 177 |
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[73c180db] | 178 | <para>The locales that can make the system respond in a different language
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| 179 | were not installed by the above command. None of the locales are required,
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| 180 | but, if some of them are misssing, testuites of the future packages would
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| 181 | skip important testcases.</para>
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| 182 |
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| 183 | <para>Individual locales can be installed using the
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| 184 | <command>localedef</command> program. E.g., the first
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| 185 | <command>localedef</command> command below combines the
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| 186 | <filename>/usr/share/i18n/locales/de_DE</filename>
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| 187 | charset-independent locale definition with the
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| 188 | <filename>/usr/share/i18n/charmaps/ISO-8859-1.gz</filename>
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| 189 | charmap definition and appends the result to the
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| 190 | <filename>/usr/lib/locale/locale-archive</filename> file.
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| 191 | The following instructions will install the minimum set of
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| 192 | locales necessary for the optimal coverage of tests:</para>
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[3f0c882] | 193 |
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[03e9011] | 194 | <screen role="nodump"><userinput>mkdir -pv /usr/lib/locale
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[73aedd1d] | 195 | localedef -i de_DE -f ISO-8859-1 de_DE
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| 196 | localedef -i de_DE@euro -f ISO-8859-15 de_DE@euro
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| 197 | localedef -i en_HK -f ISO-8859-1 en_HK
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| 198 | localedef -i en_PH -f ISO-8859-1 en_PH
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| 199 | localedef -i en_US -f ISO-8859-1 en_US
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[e6ab4b5] | 200 | localedef -i en_US -f UTF-8 en_US.UTF-8
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[73aedd1d] | 201 | localedef -i es_MX -f ISO-8859-1 es_MX
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[673b0d8] | 202 | localedef -i fa_IR -f UTF-8 fa_IR
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[73aedd1d] | 203 | localedef -i fr_FR -f ISO-8859-1 fr_FR
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| 204 | localedef -i fr_FR@euro -f ISO-8859-15 fr_FR@euro
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[f658b21] | 205 | localedef -i fr_FR -f UTF-8 fr_FR.UTF-8
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[73aedd1d] | 206 | localedef -i it_IT -f ISO-8859-1 it_IT
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| 207 | localedef -i ja_JP -f EUC-JP ja_JP</userinput></screen>
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| 208 |
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[73c180db] | 209 | <para>In addition, install the locale for your own country, language and
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| 210 | character set.</para>
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[46a2e9c] | 211 |
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[73c180db] | 212 | <para>Alternatively, install all locales listed in the
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| 213 | <filename>glibc-&glibc-version;/localedata/SUPPORTED</filename> file
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| 214 | (it includes every locale listed above and many more) at once with the
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| 215 | following time-consuming command:</para>
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[46a2e9c] | 216 |
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| 217 | <screen><userinput>make localedata/install-locales</userinput></screen>
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| 218 |
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[73c180db] | 219 | <para>Then use the <command>localedef</command> command to create and
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| 220 | install locales not listed in the
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| 221 | <filename>glibc-&glibc-version;/localedata/SUPPORTED</filename> file
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| 222 | in the unlikely case if you need them.</para>
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| 223 | <!-- The Live CD patches the localedata/SUPPORTED file instead of
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| 224 | running localedef, the results are equivalent -->
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| 225 |
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| 226 | </sect2>
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[81fd230] | 227 |
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[73c180db] | 228 | <sect2 id="conf-glibc" role="configuration">
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| 229 | <title>Configuring Glibc</title>
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[5888299] | 230 |
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[73c180db] | 231 | <indexterm zone="conf-glibc">
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| 232 | <primary sortas="e-/etc/nsswitch.conf">/etc/nsswitch.conf</primary>
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| 233 | </indexterm>
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[81fd230] | 234 |
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[73c180db] | 235 | <indexterm zone="conf-glibc">
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| 236 | <primary sortas="e-/etc/localtime">/etc/localtime</primary>
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| 237 | </indexterm>
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[342b176] | 238 |
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[73c180db] | 239 | <para>The <filename>/etc/nsswitch.conf</filename> file needs to be created
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| 240 | because, although Glibc provides defaults when this file is missing or corrupt,
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| 241 | the Glibc defaults do not work well in a networked environment. The time zone
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| 242 | also needs to be configured.</para>
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| 243 |
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| 244 | <para>Create a new file <filename>/etc/nsswitch.conf</filename> by running the
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| 245 | following:</para>
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[342b176] | 246 |
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[bb55064] | 247 | <screen><userinput>cat > /etc/nsswitch.conf << "EOF"
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[d72e04a] | 248 | <literal># Begin /etc/nsswitch.conf
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[342b176] | 249 |
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| 250 | passwd: files
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| 251 | group: files
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| 252 | shadow: files
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| 253 |
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| 254 | hosts: files dns
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| 255 | networks: files
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| 256 |
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[4a80bec] | 257 | protocols: files
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| 258 | services: files
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| 259 | ethers: files
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| 260 | rpc: files
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[342b176] | 261 |
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[d72e04a] | 262 | # End /etc/nsswitch.conf</literal>
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[bb55064] | 263 | EOF</userinput></screen>
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[342b176] | 264 |
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[73c180db] | 265 | <para>To determine the local time zone, run the following script:</para>
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[342b176] | 266 |
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[be4be92] | 267 | <screen role="nodump"><userinput>tzselect</userinput></screen>
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[342b176] | 268 |
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[73c180db] | 269 | <para>After answering a few questions about the location, the script will
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| 270 | output the name of the time zone (e.g., <emphasis>EST5EDT</emphasis> or
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| 271 | <emphasis>Canada/Eastern</emphasis>). Then create the
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| 272 | <filename>/etc/localtime</filename> file by running:</para>
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[342b176] | 273 |
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[893d40b] | 274 | <screen><userinput>cp -v --remove-destination /usr/share/zoneinfo/<replaceable>[xxx]</replaceable> \
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[3f0c882] | 275 | /etc/localtime</userinput></screen>
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[342b176] | 276 |
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[73c180db] | 277 | <para>Replace <replaceable>[xxx]</replaceable> with the name of the time zone
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| 278 | that <command>tzselect</command> provided (e.g., Canada/Eastern).</para>
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| 279 |
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| 280 | <variablelist>
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| 281 | <title>The meaning of the cp option:</title>
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| 282 |
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| 283 | <varlistentry>
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| 284 | <term><parameter>--remove-destination</parameter></term>
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| 285 | <listitem>
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| 286 | <para>This is needed to force removal of the already existing symbolic
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| 287 | link. The reason for copying the file instead of using a symlink is to
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| 288 | cover the situation where <filename class="directory">/usr</filename>
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| 289 | is on a separate partition. This could be important when booted into
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| 290 | single user mode.</para>
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| 291 | </listitem>
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| 292 | </varlistentry>
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| 293 |
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| 294 | </variablelist>
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| 295 |
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| 296 | </sect2>
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| 297 |
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| 298 | <sect2 id="conf-ld" role="configuration">
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| 299 | <title>Configuring the Dynamic Loader</title>
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| 300 |
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| 301 | <indexterm zone="conf-ld">
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| 302 | <primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary>
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| 303 | </indexterm>
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| 304 |
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| 305 | <para>By default, the dynamic loader (<filename
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| 306 | class="libraryfile">/lib/ld-linux.so.2</filename>) searches through
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| 307 | <filename class="directory">/lib</filename> and <filename
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| 308 | class="directory">/usr/lib</filename> for dynamic libraries that are
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| 309 | needed by programs as they are run. However, if there are libraries in
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| 310 | directories other than <filename class="directory">/lib</filename> and
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| 311 | <filename class="directory">/usr/lib</filename>, these need to be added
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| 312 | to the <filename>/etc/ld.so.conf</filename> file in order for the
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| 313 | dynamic loader to find them. Two directories that are commonly known
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| 314 | to contain additional libraries are <filename
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| 315 | class="directory">/usr/local/lib</filename> and <filename
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| 316 | class="directory">/opt/lib</filename>, so add those directories to the
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| 317 | dynamic loader's search path.</para>
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| 318 |
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| 319 | <para>Create a new file <filename>/etc/ld.so.conf</filename> by running the
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| 320 | following:</para>
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[342b176] | 321 |
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[bb55064] | 322 | <screen><userinput>cat > /etc/ld.so.conf << "EOF"
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[d72e04a] | 323 | <literal># Begin /etc/ld.so.conf
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[342b176] | 324 |
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| 325 | /usr/local/lib
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| 326 | /opt/lib
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| 327 |
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[d72e04a] | 328 | # End /etc/ld.so.conf</literal>
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[bb55064] | 329 | EOF</userinput></screen>
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[342b176] | 330 |
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[73c180db] | 331 | </sect2>
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| 332 |
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| 333 | <sect2 id="contents-glibc" role="content">
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| 334 | <title>Contents of Glibc</title>
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| 335 |
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| 336 | <segmentedlist>
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| 337 | <segtitle>Installed programs</segtitle>
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| 338 | <segtitle>Installed libraries</segtitle>
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| 339 |
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| 340 | <seglistitem>
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| 341 | <seg>catchsegv, gencat, getconf, getent, iconv, iconvconfig, ldconfig,
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| 342 | ldd, lddlibc4, locale, localedef, mtrace, nscd, nscd_nischeck,
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| 343 | pcprofiledump, pt_chown, rpcgen, rpcinfo, sln, sprof, tzselect, xtrace,
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| 344 | zdump, and zic</seg>
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| 345 | <seg>ld.so, libBrokenLocale.[a,so], libSegFault.so, libanl.[a,so],
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| 346 | libbsd-compat.a, libc.[a,so], libcidn.so, libcrypt.[a,so], libdl.[a,so],
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| 347 | libg.a, libieee.a, libm.[a,so], libmcheck.a, libmemusage.so, libnsl.a,
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| 348 | libnss_compat.so, libnss_dns.so, libnss_files.so, libnss_hesiod.so,
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| 349 | libnss_nis.so, libnss_nisplus.so, libpcprofile.so, libpthread.[a,so],
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| 350 | libresolv.[a,so], librpcsvc.a, librt.[a,so], libthread_db.so, and
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| 351 | libutil.[a,so]</seg>
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| 352 | </seglistitem>
|
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| 353 | </segmentedlist>
|
---|
| 354 |
|
---|
| 355 | <variablelist>
|
---|
| 356 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
---|
| 357 | <?dbfo list-presentation="list"?>
|
---|
| 358 | <?dbhtml list-presentation="table"?>
|
---|
| 359 |
|
---|
| 360 | <varlistentry id="catchsegv">
|
---|
| 361 | <term><command>catchsegv</command></term>
|
---|
| 362 | <listitem>
|
---|
| 363 | <para>Can be used to create a stack trace when a program
|
---|
| 364 | terminates with a segmentation fault</para>
|
---|
| 365 | <indexterm zone="ch-system-glibc catchsegv">
|
---|
| 366 | <primary sortas="b-catchsegv">catchsegv</primary>
|
---|
| 367 | </indexterm>
|
---|
| 368 | </listitem>
|
---|
| 369 | </varlistentry>
|
---|
| 370 |
|
---|
| 371 | <varlistentry id="gencat">
|
---|
| 372 | <term><command>gencat</command></term>
|
---|
| 373 | <listitem>
|
---|
| 374 | <para>Generates message catalogues</para>
|
---|
| 375 | <indexterm zone="ch-system-glibc gencat">
|
---|
| 376 | <primary sortas="b-gencat">gencat</primary>
|
---|
| 377 | </indexterm>
|
---|
| 378 | </listitem>
|
---|
| 379 | </varlistentry>
|
---|
| 380 |
|
---|
| 381 | <varlistentry id="getconf">
|
---|
| 382 | <term><command>getconf</command></term>
|
---|
| 383 | <listitem>
|
---|
| 384 | <para>Displays the system configuration values for file system
|
---|
| 385 | specific variables</para>
|
---|
| 386 | <indexterm zone="ch-system-glibc getconf">
|
---|
| 387 | <primary sortas="b-getconf">getconf</primary>
|
---|
| 388 | </indexterm>
|
---|
| 389 | </listitem>
|
---|
| 390 | </varlistentry>
|
---|
| 391 |
|
---|
| 392 | <varlistentry id="getent">
|
---|
| 393 | <term><command>getent</command></term>
|
---|
| 394 | <listitem>
|
---|
| 395 | <para>Gets entries from an administrative database</para>
|
---|
| 396 | <indexterm zone="ch-system-glibc getent">
|
---|
| 397 | <primary sortas="b-getent">getent</primary>
|
---|
| 398 | </indexterm>
|
---|
| 399 | </listitem>
|
---|
| 400 | </varlistentry>
|
---|
| 401 |
|
---|
| 402 | <varlistentry id="iconv">
|
---|
| 403 | <term><command>iconv</command></term>
|
---|
| 404 | <listitem>
|
---|
| 405 | <para>Performs character set conversion</para>
|
---|
| 406 | <indexterm zone="ch-system-glibc iconv">
|
---|
| 407 | <primary sortas="b-iconv">iconv</primary>
|
---|
| 408 | </indexterm>
|
---|
| 409 | </listitem>
|
---|
| 410 | </varlistentry>
|
---|
| 411 |
|
---|
| 412 | <varlistentry id="iconvconfig">
|
---|
| 413 | <term><command>iconvconfig</command></term>
|
---|
| 414 | <listitem>
|
---|
| 415 | <para>Creates fastloading <command>iconv</command> module configuration
|
---|
| 416 | files</para>
|
---|
| 417 | <indexterm zone="ch-system-glibc iconvconfig">
|
---|
| 418 | <primary sortas="b-iconvconfig">iconvconfig</primary>
|
---|
| 419 | </indexterm>
|
---|
| 420 | </listitem>
|
---|
| 421 | </varlistentry>
|
---|
| 422 |
|
---|
| 423 | <varlistentry id="ldconfig">
|
---|
| 424 | <term><command>ldconfig</command></term>
|
---|
| 425 | <listitem>
|
---|
| 426 | <para>Configures the dynamic linker runtime bindings</para>
|
---|
| 427 | <indexterm zone="ch-system-glibc ldconfig">
|
---|
| 428 | <primary sortas="b-ldconfig">ldconfig</primary>
|
---|
| 429 | </indexterm>
|
---|
| 430 | </listitem>
|
---|
| 431 | </varlistentry>
|
---|
| 432 |
|
---|
| 433 | <varlistentry id="ldd">
|
---|
| 434 | <term><command>ldd</command></term>
|
---|
| 435 | <listitem>
|
---|
| 436 | <para>Reports which shared libraries are required
|
---|
| 437 | by each given program or shared library</para>
|
---|
| 438 | <indexterm zone="ch-system-glibc ldd">
|
---|
| 439 | <primary sortas="b-ldd">ldd</primary>
|
---|
| 440 | </indexterm>
|
---|
| 441 | </listitem>
|
---|
| 442 | </varlistentry>
|
---|
| 443 |
|
---|
| 444 | <varlistentry id="lddlibc4">
|
---|
| 445 | <term><command>lddlibc4</command></term>
|
---|
| 446 | <listitem>
|
---|
| 447 | <para>Assists <command>ldd</command> with object files</para>
|
---|
| 448 | <indexterm zone="ch-system-glibc lddlibc4">
|
---|
| 449 | <primary sortas="b-lddlibc4">lddlibc4</primary>
|
---|
| 450 | </indexterm>
|
---|
| 451 | </listitem>
|
---|
| 452 | </varlistentry>
|
---|
| 453 |
|
---|
| 454 | <varlistentry id="locale">
|
---|
| 455 | <term><command>locale</command></term>
|
---|
| 456 | <listitem>
|
---|
| 457 | <para>Prints various information about the current locale</para>
|
---|
| 458 | <indexterm zone="ch-system-glibc locale">
|
---|
| 459 | <primary sortas="b-locale">locale</primary>
|
---|
| 460 | </indexterm>
|
---|
| 461 | </listitem>
|
---|
| 462 | </varlistentry>
|
---|
| 463 |
|
---|
| 464 | <varlistentry id="localedef">
|
---|
| 465 | <term><command>localedef</command></term>
|
---|
| 466 | <listitem>
|
---|
| 467 | <para>Compiles locale specifications</para>
|
---|
| 468 | <indexterm zone="ch-system-glibc localedef">
|
---|
| 469 | <primary sortas="b-localedef">localedef</primary>
|
---|
| 470 | </indexterm>
|
---|
| 471 | </listitem>
|
---|
| 472 | </varlistentry>
|
---|
| 473 |
|
---|
| 474 | <varlistentry id="mtrace">
|
---|
| 475 | <term><command>mtrace</command></term>
|
---|
| 476 | <listitem>
|
---|
| 477 | <para>Reads and interprets a memory trace file and displays a summary
|
---|
| 478 | in human-readable format</para>
|
---|
| 479 | <indexterm zone="ch-system-glibc mtrace">
|
---|
| 480 | <primary sortas="b-mtrace">mtrace</primary>
|
---|
| 481 | </indexterm>
|
---|
| 482 | </listitem>
|
---|
| 483 | </varlistentry>
|
---|
| 484 |
|
---|
| 485 | <varlistentry id="nscd">
|
---|
| 486 | <term><command>nscd</command></term>
|
---|
| 487 | <listitem>
|
---|
| 488 | <para>A daemon that provides a cache for the most common name
|
---|
| 489 | service requests</para>
|
---|
| 490 | <indexterm zone="ch-system-glibc nscd">
|
---|
| 491 | <primary sortas="b-nscd">nscd</primary>
|
---|
| 492 | </indexterm>
|
---|
| 493 | </listitem>
|
---|
| 494 | </varlistentry>
|
---|
| 495 |
|
---|
| 496 | <varlistentry id="nscd_nischeck">
|
---|
| 497 | <term><command>nscd_nischeck</command></term>
|
---|
| 498 | <listitem>
|
---|
| 499 | <para>Checks whether or not secure mode is necessary for NIS+
|
---|
| 500 | lookup</para>
|
---|
| 501 | <indexterm zone="ch-system-glibc nscd_nischeck">
|
---|
| 502 | <primary sortas="b-nscd_nischeck">nscd_nischeck</primary>
|
---|
| 503 | </indexterm>
|
---|
| 504 | </listitem>
|
---|
| 505 | </varlistentry>
|
---|
| 506 |
|
---|
| 507 | <varlistentry id="pcprofiledump">
|
---|
| 508 | <term><command>pcprofiledump</command></term>
|
---|
| 509 | <listitem>
|
---|
| 510 | <para>Dumps information generated by PC profiling</para>
|
---|
| 511 | <indexterm zone="ch-system-glibc pcprofiledump">
|
---|
| 512 | <primary sortas="b-pcprofiledump">pcprofiledump</primary>
|
---|
| 513 | </indexterm>
|
---|
| 514 | </listitem>
|
---|
| 515 | </varlistentry>
|
---|
| 516 |
|
---|
| 517 | <varlistentry id="pt_chown">
|
---|
| 518 | <term><command>pt_chown</command></term>
|
---|
| 519 | <listitem>
|
---|
| 520 | <para>A helper program for <command>grantpt</command> to set the owner,
|
---|
| 521 | group and access permissions of a slave pseudo terminal</para>
|
---|
| 522 | <indexterm zone="ch-system-glibc pt_chown">
|
---|
| 523 | <primary sortas="b-pt_chown">pt_chown</primary>
|
---|
| 524 | </indexterm>
|
---|
| 525 | </listitem>
|
---|
| 526 | </varlistentry>
|
---|
| 527 |
|
---|
| 528 | <varlistentry id="rpcgen">
|
---|
| 529 | <term><command>rpcgen</command></term>
|
---|
| 530 | <listitem>
|
---|
| 531 | <para>Generates C code to implement the Remote Procecure Call (RPC)
|
---|
| 532 | protocol</para>
|
---|
| 533 | <indexterm zone="ch-system-glibc rpcgen">
|
---|
| 534 | <primary sortas="b-rpcgen">rpcgen</primary>
|
---|
| 535 | </indexterm>
|
---|
| 536 | </listitem>
|
---|
| 537 | </varlistentry>
|
---|
| 538 |
|
---|
| 539 | <varlistentry id="rpcinfo">
|
---|
| 540 | <term><command>rpcinfo</command></term>
|
---|
| 541 | <listitem>
|
---|
| 542 | <para>Makes an RPC call to an RPC server</para>
|
---|
| 543 | <indexterm zone="ch-system-glibc rpcinfo">
|
---|
| 544 | <primary sortas="b-rpcinfo">rpcinfo</primary>
|
---|
| 545 | </indexterm>
|
---|
| 546 | </listitem>
|
---|
| 547 | </varlistentry>
|
---|
| 548 |
|
---|
| 549 | <varlistentry id="sln">
|
---|
| 550 | <term><command>sln</command></term>
|
---|
| 551 | <listitem>
|
---|
| 552 | <para>A statically linked <command>ln</command> program</para>
|
---|
| 553 | <indexterm zone="ch-system-glibc sln">
|
---|
| 554 | <primary sortas="b-sln">sln</primary>
|
---|
| 555 | </indexterm>
|
---|
| 556 | </listitem>
|
---|
| 557 | </varlistentry>
|
---|
| 558 |
|
---|
| 559 | <varlistentry id="sprof">
|
---|
| 560 | <term><command>sprof</command></term>
|
---|
| 561 | <listitem>
|
---|
| 562 | <para>Reads and displays shared object profiling data</para>
|
---|
| 563 | <indexterm zone="ch-system-glibc sprof">
|
---|
| 564 | <primary sortas="b-sprof">sprof</primary>
|
---|
| 565 | </indexterm>
|
---|
| 566 | </listitem>
|
---|
| 567 | </varlistentry>
|
---|
| 568 |
|
---|
| 569 | <varlistentry id="tzselect">
|
---|
| 570 | <term><command>tzselect</command></term>
|
---|
| 571 | <listitem>
|
---|
| 572 | <para>Asks the user about the location of the system and reports
|
---|
| 573 | the corresponding time zone description</para>
|
---|
| 574 | <indexterm zone="ch-system-glibc tzselect">
|
---|
| 575 | <primary sortas="b-tzselect">tzselect</primary>
|
---|
| 576 | </indexterm>
|
---|
| 577 | </listitem>
|
---|
| 578 | </varlistentry>
|
---|
| 579 |
|
---|
| 580 | <varlistentry id="xtrace">
|
---|
| 581 | <term><command>xtrace</command></term>
|
---|
| 582 | <listitem>
|
---|
| 583 | <para>Traces the execution of a program by printing the currently
|
---|
| 584 | executed function</para>
|
---|
| 585 | <indexterm zone="ch-system-glibc xtrace">
|
---|
| 586 | <primary sortas="b-xtrace">xtrace</primary>
|
---|
| 587 | </indexterm>
|
---|
| 588 | </listitem>
|
---|
| 589 | </varlistentry>
|
---|
| 590 |
|
---|
| 591 | <varlistentry id="zdump">
|
---|
| 592 | <term><command>zdump</command></term>
|
---|
| 593 | <listitem>
|
---|
| 594 | <para>The time zone dumper</para>
|
---|
| 595 | <indexterm zone="ch-system-glibc zdump">
|
---|
| 596 | <primary sortas="b-zdump">zdump</primary>
|
---|
| 597 | </indexterm>
|
---|
| 598 | </listitem>
|
---|
| 599 | </varlistentry>
|
---|
| 600 |
|
---|
| 601 | <varlistentry id="zic">
|
---|
| 602 | <term><command>zic</command></term>
|
---|
| 603 | <listitem>
|
---|
| 604 | <para>The time zone compiler</para>
|
---|
| 605 | <indexterm zone="ch-system-glibc zic">
|
---|
| 606 | <primary sortas="b-zic">zic</primary>
|
---|
| 607 | </indexterm>
|
---|
| 608 | </listitem>
|
---|
| 609 | </varlistentry>
|
---|
| 610 |
|
---|
| 611 | <varlistentry id="ld.so">
|
---|
| 612 | <term><filename class="libraryfile">ld.so</filename></term>
|
---|
| 613 | <listitem>
|
---|
| 614 | <para>The helper program for shared library executables</para>
|
---|
| 615 | <indexterm zone="ch-system-glibc ld.so">
|
---|
| 616 | <primary sortas="c-ld.so">ld.so</primary>
|
---|
| 617 | </indexterm>
|
---|
| 618 | </listitem>
|
---|
| 619 | </varlistentry>
|
---|
| 620 |
|
---|
| 621 | <varlistentry id="libBrokenLocale">
|
---|
| 622 | <term><filename class="libraryfile">libBrokenLocale</filename></term>
|
---|
| 623 | <listitem>
|
---|
| 624 | <para>Used internally by Glibc as a gross hack to get broken programs
|
---|
| 625 | (e.g., some Motif applications) running. See comments in
|
---|
| 626 | <filename>glibc-&glibc-version;/locale/broken_cur_max.c</filename>
|
---|
| 627 | for more information</para>
|
---|
| 628 | <indexterm zone="ch-system-glibc libBrokenLocale">
|
---|
| 629 | <primary sortas="c-libBrokenLocale">libBrokenLocale</primary>
|
---|
| 630 | </indexterm>
|
---|
| 631 | </listitem>
|
---|
| 632 | </varlistentry>
|
---|
| 633 |
|
---|
| 634 | <varlistentry id="libSegFault">
|
---|
| 635 | <term><filename class="libraryfile">libSegFault</filename></term>
|
---|
| 636 | <listitem>
|
---|
| 637 | <para>The segmentation fault signal handler, used by
|
---|
| 638 | <command>catchsegv</command></para>
|
---|
| 639 | <indexterm zone="ch-system-glibc libSegFault">
|
---|
| 640 | <primary sortas="c-libSegFault">libSegFault</primary>
|
---|
| 641 | </indexterm>
|
---|
| 642 | </listitem>
|
---|
| 643 | </varlistentry>
|
---|
| 644 |
|
---|
| 645 | <varlistentry id="libanl">
|
---|
| 646 | <term><filename class="libraryfile">libanl</filename></term>
|
---|
| 647 | <listitem>
|
---|
| 648 | <para>An asynchronous name lookup library</para>
|
---|
| 649 | <indexterm zone="ch-system-glibc libanl">
|
---|
| 650 | <primary sortas="c-libanl">libanl</primary>
|
---|
| 651 | </indexterm>
|
---|
| 652 | </listitem>
|
---|
| 653 | </varlistentry>
|
---|
| 654 |
|
---|
| 655 | <varlistentry id="libbsd-compat">
|
---|
| 656 | <term><filename class="libraryfile">libbsd-compat</filename></term>
|
---|
| 657 | <listitem>
|
---|
| 658 | <para>Provides the portability needed in order to run certain Berkey
|
---|
| 659 | Software Distribution (BSD) programs under Linux</para>
|
---|
| 660 | <indexterm zone="ch-system-glibc libbsd-compat">
|
---|
| 661 | <primary sortas="c-libbsd-compat">libbsd-compat</primary>
|
---|
| 662 | </indexterm>
|
---|
| 663 | </listitem>
|
---|
| 664 | </varlistentry>
|
---|
| 665 |
|
---|
| 666 | <varlistentry id="libc">
|
---|
| 667 | <term><filename class="libraryfile">libc</filename></term>
|
---|
| 668 | <listitem>
|
---|
| 669 | <para>The main C library</para>
|
---|
| 670 | <indexterm zone="ch-system-glibc libc">
|
---|
| 671 | <primary sortas="c-libc">libc</primary>
|
---|
| 672 | </indexterm>
|
---|
| 673 | </listitem>
|
---|
| 674 | </varlistentry>
|
---|
| 675 |
|
---|
| 676 | <varlistentry id="libcidn">
|
---|
| 677 | <term><filename class="libraryfile">libcidn</filename></term>
|
---|
| 678 | <listitem>
|
---|
| 679 | <para>Used internally by Glibc for handling internationalized domain
|
---|
| 680 | names in the <function>getaddrinfo()</function> function</para>
|
---|
| 681 | <indexterm zone="ch-system-glibc libcrypt">
|
---|
| 682 | <primary sortas="c-libcrypt">libcrypt</primary>
|
---|
| 683 | </indexterm>
|
---|
| 684 | </listitem>
|
---|
| 685 | </varlistentry>
|
---|
| 686 |
|
---|
| 687 | <varlistentry id="libcrypt">
|
---|
| 688 | <term><filename class="libraryfile">libcrypt</filename></term>
|
---|
| 689 | <listitem>
|
---|
| 690 | <para>The cryptography library</para>
|
---|
| 691 | <indexterm zone="ch-system-glibc libcrypt">
|
---|
| 692 | <primary sortas="c-libcrypt">libcrypt</primary>
|
---|
| 693 | </indexterm>
|
---|
| 694 | </listitem>
|
---|
| 695 | </varlistentry>
|
---|
| 696 |
|
---|
| 697 | <varlistentry id="libdl">
|
---|
| 698 | <term><filename class="libraryfile">libdl</filename></term>
|
---|
| 699 | <listitem>
|
---|
| 700 | <para>The dynamic linking interface library</para>
|
---|
| 701 | <indexterm zone="ch-system-glibc libdl">
|
---|
| 702 | <primary sortas="c-libdl">libdl</primary>
|
---|
| 703 | </indexterm>
|
---|
| 704 | </listitem>
|
---|
| 705 | </varlistentry>
|
---|
| 706 |
|
---|
| 707 | <varlistentry id="libg">
|
---|
| 708 | <term><filename class="libraryfile">libg</filename></term>
|
---|
| 709 | <listitem>
|
---|
| 710 | <para>Dummy library containing no functions. Previously was a runtime
|
---|
| 711 | library for <command>g++</command></para>
|
---|
| 712 | <indexterm zone="ch-system-glibc libg">
|
---|
| 713 | <primary sortas="c-libg">libg</primary>
|
---|
| 714 | </indexterm>
|
---|
| 715 | </listitem>
|
---|
| 716 | </varlistentry>
|
---|
| 717 |
|
---|
| 718 | <varlistentry id="libieee">
|
---|
| 719 | <term><filename class="libraryfile">libieee</filename></term>
|
---|
| 720 | <listitem>
|
---|
| 721 | <para>Linking in this module forces error handling rules for math
|
---|
| 722 | functions as defined by the Institute of Electrical and Electronic
|
---|
| 723 | Engineers (IEEE). The default is POSIX.1 error handling</para>
|
---|
| 724 | <indexterm zone="ch-system-glibc libieee">
|
---|
| 725 | <primary sortas="c-libieee">libieee</primary>
|
---|
| 726 | </indexterm>
|
---|
| 727 | </listitem>
|
---|
| 728 | </varlistentry>
|
---|
| 729 |
|
---|
| 730 | <varlistentry id="libm">
|
---|
| 731 | <term><filename class="libraryfile">libm</filename></term>
|
---|
| 732 | <listitem>
|
---|
| 733 | <para>The mathematical library</para>
|
---|
| 734 | <indexterm zone="ch-system-glibc libm">
|
---|
| 735 | <primary sortas="c-libm">libm</primary>
|
---|
| 736 | </indexterm>
|
---|
| 737 | </listitem>
|
---|
| 738 | </varlistentry>
|
---|
| 739 |
|
---|
| 740 | <varlistentry id="libmcheck">
|
---|
| 741 | <term><filename class="libraryfile">libmcheck</filename></term>
|
---|
| 742 | <listitem>
|
---|
| 743 | <para>Turns on memory allocation checking when linked to</para>
|
---|
| 744 | <indexterm zone="ch-system-glibc libmcheck">
|
---|
| 745 | <primary sortas="c-libmcheck">libmcheck</primary>
|
---|
| 746 | </indexterm>
|
---|
| 747 | </listitem>
|
---|
| 748 | </varlistentry>
|
---|
| 749 |
|
---|
| 750 | <varlistentry id="libmemusage">
|
---|
| 751 | <term><filename class="libraryfile">libmemusage</filename></term>
|
---|
| 752 | <listitem>
|
---|
| 753 | <para>Used by <command>memusage</command> to help collect
|
---|
| 754 | information about the memory usage of a program</para>
|
---|
| 755 | <indexterm zone="ch-system-glibc libmemusage">
|
---|
| 756 | <primary sortas="c-libmemusage">libmemusage</primary>
|
---|
| 757 | </indexterm>
|
---|
| 758 | </listitem>
|
---|
| 759 | </varlistentry>
|
---|
| 760 |
|
---|
| 761 | <varlistentry id="libnsl">
|
---|
| 762 | <term><filename class="libraryfile">libnsl</filename></term>
|
---|
| 763 | <listitem>
|
---|
| 764 | <para>The network services library</para>
|
---|
| 765 | <indexterm zone="ch-system-glibc libnsl">
|
---|
| 766 | <primary sortas="c-libnsl">libnsl</primary>
|
---|
| 767 | </indexterm>
|
---|
| 768 | </listitem>
|
---|
| 769 | </varlistentry>
|
---|
| 770 |
|
---|
| 771 | <varlistentry id="libnss">
|
---|
| 772 | <term><filename class="libraryfile">libnss</filename></term>
|
---|
| 773 | <listitem>
|
---|
| 774 | <para>The Name Service Switch libraries, containing functions for
|
---|
| 775 | resolving host names, user names, group names, aliases, services,
|
---|
| 776 | protocols, etc.</para>
|
---|
| 777 | <indexterm zone="ch-system-glibc libnss">
|
---|
| 778 | <primary sortas="c-libnss">libnss</primary>
|
---|
| 779 | </indexterm>
|
---|
| 780 | </listitem>
|
---|
| 781 | </varlistentry>
|
---|
| 782 |
|
---|
| 783 | <varlistentry id="libpcprofile">
|
---|
| 784 | <term><filename class="libraryfile">libpcprofile</filename></term>
|
---|
| 785 | <listitem>
|
---|
| 786 | <para>Contains profiling functions used to track the amount of CPU
|
---|
| 787 | time spent in specific source code lines</para>
|
---|
| 788 | <indexterm zone="ch-system-glibc libpcprofile">
|
---|
| 789 | <primary sortas="c-libpcprofile">libpcprofile</primary>
|
---|
| 790 | </indexterm>
|
---|
| 791 | </listitem>
|
---|
| 792 | </varlistentry>
|
---|
| 793 |
|
---|
| 794 | <varlistentry id="libpthread">
|
---|
| 795 | <term><filename class="libraryfile">libpthread</filename></term>
|
---|
| 796 | <listitem>
|
---|
| 797 | <para>The POSIX threads library</para>
|
---|
| 798 | <indexterm zone="ch-system-glibc libpthread">
|
---|
| 799 | <primary sortas="c-libpthread">libpthread</primary>
|
---|
| 800 | </indexterm>
|
---|
| 801 | </listitem>
|
---|
| 802 | </varlistentry>
|
---|
| 803 |
|
---|
| 804 | <varlistentry id="libresolv">
|
---|
| 805 | <term><filename class="libraryfile">libresolv</filename></term>
|
---|
| 806 | <listitem>
|
---|
| 807 | <para>Contains functions for creating, sending, and interpreting
|
---|
| 808 | packets to the Internet domain name servers</para>
|
---|
| 809 | <indexterm zone="ch-system-glibc libresolv">
|
---|
| 810 | <primary sortas="c-libresolv">libresolv</primary>
|
---|
| 811 | </indexterm>
|
---|
| 812 | </listitem>
|
---|
| 813 | </varlistentry>
|
---|
| 814 |
|
---|
| 815 | <varlistentry id="librpcsvc">
|
---|
| 816 | <term><filename class="libraryfile">librpcsvc</filename></term>
|
---|
| 817 | <listitem>
|
---|
| 818 | <para>Contains functions providing miscellaneous RPC services</para>
|
---|
| 819 | <indexterm zone="ch-system-glibc librpcsvc">
|
---|
| 820 | <primary sortas="c-librpcsvc">librpcsvc</primary>
|
---|
| 821 | </indexterm>
|
---|
| 822 | </listitem>
|
---|
| 823 | </varlistentry>
|
---|
| 824 |
|
---|
| 825 | <varlistentry id="librt">
|
---|
| 826 | <term><filename class="libraryfile">librt</filename></term>
|
---|
| 827 | <listitem>
|
---|
| 828 | <para>Contains functions providing most of the interfaces specified
|
---|
| 829 | by the POSIX.1b Realtime Extension</para>
|
---|
| 830 | <indexterm zone="ch-system-glibc librt">
|
---|
| 831 | <primary sortas="c-librt">librt</primary>
|
---|
| 832 | </indexterm>
|
---|
| 833 | </listitem>
|
---|
| 834 | </varlistentry>
|
---|
| 835 |
|
---|
| 836 | <varlistentry id="libthread_db">
|
---|
| 837 | <term><filename class="libraryfile">libthread_db</filename></term>
|
---|
| 838 | <listitem>
|
---|
| 839 | <para>Contains functions useful for building debuggers for
|
---|
| 840 | multi-threaded programs</para>
|
---|
| 841 | <indexterm zone="ch-system-glibc libthread_db">
|
---|
| 842 | <primary sortas="c-libthread_db">libthread_db</primary>
|
---|
| 843 | </indexterm>
|
---|
| 844 | </listitem>
|
---|
| 845 | </varlistentry>
|
---|
| 846 |
|
---|
| 847 | <varlistentry id="libutil">
|
---|
| 848 | <term><filename class="libraryfile">libutil</filename></term>
|
---|
| 849 | <listitem>
|
---|
| 850 | <para>Contains code for <quote>standard</quote> functions used in
|
---|
| 851 | many different Unix utilities</para>
|
---|
| 852 | <indexterm zone="ch-system-glibc libutil">
|
---|
| 853 | <primary sortas="c-libutil">libutil</primary>
|
---|
| 854 | </indexterm>
|
---|
| 855 | </listitem>
|
---|
| 856 | </varlistentry>
|
---|
| 857 |
|
---|
| 858 | </variablelist>
|
---|
| 859 |
|
---|
| 860 | </sect2>
|
---|
[673b0d8] | 861 |
|
---|
| 862 | </sect1>
|
---|