[673b0d8] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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| 3 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 4 | %general-entities;
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| 5 | ]>
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[a001133] | 6 | <sect1 id="ch-system-glibc" xreflabel="Glibc" role="wrap">
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[673b0d8] | 7 | <title>Glibc-&glibc-version;</title>
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| 8 | <?dbhtml filename="glibc.html"?>
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| 9 |
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| 10 | <indexterm zone="ch-system-glibc"><primary sortas="a-Glibc">Glibc</primary></indexterm>
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[6370fa6] | 11 |
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[a001133] | 12 | <sect2 role="package"><title/>
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[5888299] | 13 | <para>The Glibc package contains the main C library. This library provides all
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| 14 | the basic routines for allocating memory, searching directories, opening and
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| 15 | closing files, reading and writing them, string handling, pattern matching,
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| 16 | arithmetic, and so on.</para>
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| 17 |
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[a001133] | 18 | <segmentedlist>
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| 19 | <segtitle>&buildtime;</segtitle>
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| 20 | <segtitle>&diskspace;</segtitle>
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| 21 | <seglistitem><seg>12.3 SBU</seg><seg>784 MB</seg></seglistitem>
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| 22 | </segmentedlist>
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[673b0d8] | 23 |
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[a001133] | 24 | <segmentedlist>
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| 25 | <segtitle>Glibc installation depends on</segtitle>
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| 26 | <seglistitem><seg>Bash, Binutils, Coreutils, Diffutils,
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| 27 | Gawk, GCC, Gettext, Grep, Make, Perl, Sed, Texinfo</seg></seglistitem>
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| 28 | </segmentedlist>
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| 29 | </sect2>
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[3554fa3a] | 30 |
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[a001133] | 31 | <sect2 role="installation">
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[5888299] | 32 | <title>Installation of Glibc</title>
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[73aedd1d] | 33 |
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| 34 | <para>The Glibc build system is very well self-contained and will install
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| 35 | perfectly, even though our compiler specs file and linker are still pointing
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| 36 | at <filename>/tools</filename>. We cannot adjust the specs and linker before
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| 37 | the Glibc install, because the Glibc autoconf tests would then give bogus
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| 38 | results and thus defeat our goal of achieving a clean build.</para>
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| 39 |
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[d0a6c4c] | 40 | <para>Before starting to build Glibc, remember to unset any environment
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| 41 | variables that override the default optimization flags.</para>
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[73aedd1d] | 42 |
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| 43 | <para>The Glibc documentation recommends building Glibc outside of the source
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| 44 | directory in a dedicated build directory:</para>
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| 45 |
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| 46 | <screen><userinput>mkdir ../glibc-build
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| 47 | cd ../glibc-build</userinput></screen>
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| 48 |
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| 49 | <para>Now prepare Glibc for compilation:</para>
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| 50 |
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[9dfc02f] | 51 | <screen><userinput>../glibc-&glibc-version;/configure --prefix=/usr \
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| 52 | --disable-profile --enable-add-ons=nptl --with-tls \
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| 53 | --libexecdir=/tmp/pt_chown --without-cvs \
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| 54 | --with-headers=/tools/glibc-kernheaders</userinput></screen>
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[73aedd1d] | 55 |
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| 56 | <para>The meaning of the new configure options:</para>
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| 57 |
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[df8334f] | 58 | <variablelist>
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| 59 | <varlistentry>
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| 60 | <term><userinput>--libexecdir=/tmp/pt_chown</userinput></term>
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| 61 | <listitem><para>This changes
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[9dfc02f] | 62 | the location of the <filename>pt_chown</filename> program from its default of
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[c1b2c648] | 63 | <filename class="directory">/usr/libexec</filename> to
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[9dfc02f] | 64 | <filename class="directory">/tmp/pt_chown</filename>. This program isn't required
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| 65 | on modern systems, so we install it in a place from which we will delete it
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| 66 | later.</para></listitem>
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[df8334f] | 67 | </varlistentry>
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| 68 | </variablelist>
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[73aedd1d] | 69 |
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| 70 | <para>Compile the package:</para>
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| 71 |
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| 72 | <screen><userinput>make</userinput></screen>
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| 73 |
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[90afe40d] | 74 | <important><para>The test suite for Glibc in this section is considered
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| 75 | <emphasis>critical</emphasis>. Our advice is to not skip it under any
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| 76 | circumstance.</para></important>
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| 77 |
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[73aedd1d] | 78 | <para>Test the results:</para>
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| 79 |
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| 80 | <screen><userinput>make check</userinput></screen>
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| 81 |
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[3be4d97] | 82 | <para>The test suite notes from <xref linkend="ch-tools-glibc"/> are still very much
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[73aedd1d] | 83 | appropriate here. Be sure to refer back there should you have any doubts.</para>
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| 84 |
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[1caa48e] | 85 | <para>Though it is a harmless message, the install stage of Glibc will
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| 86 | complain about the absence of <filename>/etc/ld.so.conf</filename>. Fix this
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| 87 | annoying little warning with:</para>
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| 88 |
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| 89 | <screen><userinput>touch /etc/ld.so.conf</userinput></screen>
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| 90 |
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[73aedd1d] | 91 | <para>And install the package:</para>
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| 92 |
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| 93 | <screen><userinput>make install</userinput></screen>
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| 94 |
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| 95 | <para>The locales that can make your system respond in a different language
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| 96 | weren't installed by the above command. Do it with this:</para>
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| 97 |
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| 98 | <screen><userinput>make localedata/install-locales</userinput></screen>
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| 99 |
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| 100 | <para>An alternative to running the previous command is to install only those
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[d0a6c4c] | 101 | locales which you need or want. This can be achieved by using the
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[90e3cb3] | 102 | <command>localedef</command> command. Information on this can be found in
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[d0a6c4c] | 103 | the <filename>INSTALL</filename> file in the Glibc source. However, there are
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| 104 | a number of locales that are essential for the tests of future packages to
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| 105 | pass, in particular, the <emphasis>libstdc++</emphasis> tests from GCC. The
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| 106 | following instructions, instead of the install-locales target above, will
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| 107 | install the minimum set of locales necessary for the tests to run
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| 108 | successfully:</para>
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[73aedd1d] | 109 |
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| 110 | <screen><userinput>mkdir -p /usr/lib/locale
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| 111 | localedef -i de_DE -f ISO-8859-1 de_DE
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| 112 | localedef -i de_DE@euro -f ISO-8859-15 de_DE@euro
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| 113 | localedef -i en_HK -f ISO-8859-1 en_HK
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| 114 | localedef -i en_PH -f ISO-8859-1 en_PH
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| 115 | localedef -i en_US -f ISO-8859-1 en_US
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| 116 | localedef -i es_MX -f ISO-8859-1 es_MX
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[673b0d8] | 117 | localedef -i fa_IR -f UTF-8 fa_IR
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[73aedd1d] | 118 | localedef -i fr_FR -f ISO-8859-1 fr_FR
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| 119 | localedef -i fr_FR@euro -f ISO-8859-15 fr_FR@euro
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| 120 | localedef -i it_IT -f ISO-8859-1 it_IT
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| 121 | localedef -i ja_JP -f EUC-JP ja_JP</userinput></screen>
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| 122 |
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[b32e803] | 123 | <para>In fact, some locales installed by the
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| 124 | <command>make localedata/install-locales</command>
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| 125 | command above are not properly
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| 126 | supported by some applications that are in LFS and BLFS books. Because
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| 127 | of various problems that arise
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| 128 | due to application programmers making
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| 129 | assumptions that break in such locales, LFS <emphasis>should not</emphasis>
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| 130 | be used in locales that utilize
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| 131 | multibyte character sets (including UTF-8) or
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| 132 | right-to-left writing order.
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| 133 | Numerous unofficial and unstable patches are required to fix these problems,
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| 134 | and it has been decided not to support such complex locales.
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| 135 | This applies to the ja_JP and fa_IR locales as well:
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| 136 | they have been installed only
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[e4bf4c7] | 137 | for gcc and gettext tests to pass, and e.g.
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| 138 | the <command>watch</command> program (part of Procps)
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[b32e803] | 139 | compiled according to this book doesn't work properly in them.
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| 140 | Various attempts to circumvent these
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| 141 | restrictions are documented in internationalization-related hints.</para>
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| 142 |
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[9dfc02f] | 143 | <para>Finally, build the linuxthreads man pages, which are a great reference
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| 144 | on the threading API (applicable to NPTL as well):</para>
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[73aedd1d] | 145 |
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[9dfc02f] | 146 | <screen><userinput>make -C ../glibc-&glibc-version;/linuxthreads/man</userinput></screen>
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[73aedd1d] | 147 |
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| 148 | <para>And install these pages:</para>
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| 149 |
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[9dfc02f] | 150 | <screen><userinput>make -C ../glibc-&glibc-version;/linuxthreads/man install</userinput></screen>
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[73aedd1d] | 151 |
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| 152 | </sect2>
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[5888299] | 153 |
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[342b176] | 154 |
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[673b0d8] | 155 | <sect2 id="conf-glibc"><title>Configuring Glibc</title>
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| 156 | <indexterm zone="conf-glibc"><primary sortas="e-/etc/nsswitch.conf">/etc/nsswitch.conf</primary></indexterm>
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| 157 | <indexterm zone="conf-glibc"><primary sortas="e-/etc/localtime">/etc/localtime</primary></indexterm>
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[342b176] | 158 |
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| 159 | <para>We need to create the <filename>/etc/nsswitch.conf</filename> file,
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| 160 | because, although Glibc provides defaults when this file is missing or corrupt,
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| 161 | the Glibc defaults don't work well with networking. Also, our time zone needs
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| 162 | to be set up.</para>
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| 163 |
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| 164 | <para>Create a new file <filename>/etc/nsswitch.conf</filename> by running the
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| 165 | following:</para>
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| 166 |
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| 167 | <screen><userinput>cat > /etc/nsswitch.conf << "EOF"</userinput>
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| 168 | # Begin /etc/nsswitch.conf
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| 169 |
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| 170 | passwd: files
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| 171 | group: files
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| 172 | shadow: files
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| 173 |
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| 174 | hosts: files dns
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| 175 | networks: files
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| 176 |
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[4a80bec] | 177 | protocols: files
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| 178 | services: files
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| 179 | ethers: files
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| 180 | rpc: files
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[342b176] | 181 |
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| 182 | # End /etc/nsswitch.conf
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| 183 | <userinput>EOF</userinput></screen>
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| 184 |
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| 185 | <para>To find out what time zone you're in, run the following script:</para>
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| 186 |
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| 187 | <screen><userinput>tzselect</userinput></screen>
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| 188 |
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| 189 | <para>When you've answered a few questions about your location, the script will
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| 190 | output the name of your time zone, something like <emphasis>EST5EDT</emphasis>
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| 191 | or <emphasis>Canada/Eastern</emphasis>. Then create the
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| 192 | <filename>/etc/localtime</filename> file by running:</para>
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| 193 |
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| 194 | <screen><userinput>cp --remove-destination /usr/share/zoneinfo/Canada/Eastern /etc/localtime</userinput></screen>
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| 195 |
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| 196 | <para>The meaning of the option:</para>
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| 197 |
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| 198 | <itemizedlist>
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| 199 | <listitem><para><userinput>--remove-destination</userinput>: This is needed to
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| 200 | force removal of the already existing symbolic link. The reason why we copy
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| 201 | instead of symlink is to cover the situation where <filename>/usr</filename> is
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| 202 | on a separate partition. This could matter, for example, when booted into single
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| 203 | user mode.</para></listitem>
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| 204 | </itemizedlist>
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| 205 |
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| 206 | <para>Of course, instead of <emphasis>Canada/Eastern</emphasis>, fill in
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| 207 | the name of the time zone that the <command>tzselect</command> script
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| 208 | gave you.</para>
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| 209 |
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| 210 | </sect2>
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| 211 |
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| 212 |
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[673b0d8] | 213 | <sect2 id="conf-ld">
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[342b176] | 214 | <title>Configuring Dynamic Loader</title>
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[673b0d8] | 215 | <indexterm zone="conf-ld"><primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary></indexterm>
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[342b176] | 216 |
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| 217 | <para>By default, the dynamic loader
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[673b0d8] | 218 | (<filename>/lib/ld-linux.so.2</filename>) searches through <filename
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| 219 | class="directory">/lib</filename> and <filename class="directory">/usr/lib</filename>
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| 220 | for dynamic libraries that are needed
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[342b176] | 221 | by programs when you run them. However, if there are libraries in
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| 222 | directories other than <filename class="directory">/lib</filename> and
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| 223 | <filename class="directory">/usr/lib</filename>, you need to add them to
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| 224 | the <filename>/etc/ld.so.conf</filename> file for the dynamic
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| 225 | loader to find them. Two directories that are commonly known to contain
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[673b0d8] | 226 | additional libraries are <filename class="directory">/usr/local/lib</filename>
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| 227 | and <filename class="directory">/opt/lib</filename>, so we add those directories to the
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[342b176] | 228 | dynamic loader's search path.</para>
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| 229 |
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| 230 | <para>Create a new file <filename>/etc/ld.so.conf</filename> by running the
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| 231 | following:</para>
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| 232 |
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| 233 | <screen><userinput>cat > /etc/ld.so.conf << "EOF"</userinput>
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| 234 | # Begin /etc/ld.so.conf
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| 235 |
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| 236 | /usr/local/lib
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| 237 | /opt/lib
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| 238 |
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| 239 | # End /etc/ld.so.conf
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| 240 | <userinput>EOF</userinput></screen>
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| 241 |
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| 242 | </sect2>
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[5888299] | 243 |
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| 244 |
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[c6cb3aa] | 245 | <sect2 id="contents-glibc" role="content"><title>Contents of Glibc</title>
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[673b0d8] | 246 |
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[c6cb3aa] | 247 | <segmentedlist>
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| 248 | <segtitle>Installed programs</segtitle>
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| 249 | <segtitle>Installed libraries</segtitle>
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| 250 | <seglistitem><seg>catchsegv, gencat, getconf,
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[673b0d8] | 251 | getent, glibcbug, iconv, iconvconfig, ldconfig, ldd, lddlibc4, locale,
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| 252 | localedef, mtrace, nscd, nscd_nischeck, pcprofiledump, pt_chown, rpcgen,
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[c6cb3aa] | 253 | rpcinfo, sln, sprof, tzselect, xtrace, zdump and zic</seg>
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| 254 | <seg>ld.so, libBrokenLocale.[a,so],
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[673b0d8] | 255 | libSegFault.so, libanl.[a,so], libbsd-compat.a, libc.[a,so], libc_nonshared.a,
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| 256 | libcrypt.[a,so], libdl.[a,so], libg.a, libieee.a, libm.[a,so], libmcheck.a,
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| 257 | libmemusage.so, libnsl.a, libnss_compat.so, libnss_dns.so, libnss_files.so,
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| 258 | libnss_hesiod.so, libnss_nis.so, libnss_nisplus.so, libpcprofile.so,
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| 259 | libpthread.[a,so], libresolv.[a,so], librpcsvc.a, librt.[a,so], libthread_db.so
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[c6cb3aa] | 260 | and libutil.[a,so]</seg></seglistitem>
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| 261 | </segmentedlist>
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[673b0d8] | 262 |
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[c6cb3aa] | 263 | <variablelist><title>Short descriptions</title>
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[673b0d8] | 264 |
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[c6cb3aa] | 265 | <varlistentry>
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| 266 | <term id="catchsegv"><command>catchsegv</command></term>
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| 267 | <listitem>
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[673b0d8] | 268 | <indexterm zone="ch-system-glibc catchsegv"><primary sortas="b-catchsegv">catchsegv</primary></indexterm>
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[c6cb3aa] | 269 | <para>can be used to create a stack trace
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[673b0d8] | 270 | when a program terminates with a segmentation fault.</para>
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[c6cb3aa] | 271 | </listitem>
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| 272 | </varlistentry>
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[673b0d8] | 273 |
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[c6cb3aa] | 274 | <varlistentry>
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| 275 | <term id="gencat"><command>gencat</command></term>
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| 276 | <listitem>
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[673b0d8] | 277 | <indexterm zone="ch-system-glibc gencat"><primary sortas="b-gencat">gencat</primary></indexterm>
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[c6cb3aa] | 278 | <para>generates message catalogues.</para>
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| 279 | </listitem>
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| 280 | </varlistentry>
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[673b0d8] | 281 |
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[c6cb3aa] | 282 | <varlistentry>
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| 283 | <term id="getconf"><command>getconf</command></term>
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| 284 | <listitem>
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[673b0d8] | 285 | <indexterm zone="ch-system-glibc getconf"><primary sortas="b-getconf">getconf</primary></indexterm>
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[c6cb3aa] | 286 | <para>displays the system configuration values for file system specific variables.</para>
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| 287 | </listitem>
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| 288 | </varlistentry>
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[673b0d8] | 289 |
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[c6cb3aa] | 290 | <varlistentry>
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| 291 | <term id="getent"><command>getent</command></term>
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| 292 | <listitem>
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[673b0d8] | 293 | <indexterm zone="ch-system-glibc getent"><primary sortas="b-getent">getent</primary></indexterm>
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[c6cb3aa] | 294 | <para>gets entries from an administrative database.</para>
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| 295 | </listitem>
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| 296 | </varlistentry>
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[673b0d8] | 297 |
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[c6cb3aa] | 298 | <varlistentry>
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| 299 | <term id="glibcbug"><command>glibcbug</command></term>
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| 300 | <listitem>
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[673b0d8] | 301 | <indexterm zone="ch-system-glibc glibcbug"><primary sortas="b-glibcbug">glibcbug</primary></indexterm>
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[c6cb3aa] | 302 | <para>creates a bug report and mails it to the bug email address.</para>
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| 303 | </listitem>
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| 304 | </varlistentry>
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[673b0d8] | 305 |
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[c6cb3aa] | 306 | <varlistentry>
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| 307 | <term id="iconv"><command>iconv</command></term>
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| 308 | <listitem>
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[673b0d8] | 309 | <indexterm zone="ch-system-glibc iconv"><primary sortas="b-iconv">iconv</primary></indexterm>
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[c6cb3aa] | 310 | <para>performs character set conversion.</para>
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| 311 | </listitem>
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| 312 | </varlistentry>
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[673b0d8] | 313 |
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[c6cb3aa] | 314 | <varlistentry>
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| 315 | <term id="iconvconfig"><command>iconvconfig</command></term>
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| 316 | <listitem>
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[673b0d8] | 317 | <indexterm zone="ch-system-glibc iconvconfig"><primary sortas="b-iconvconfig">iconvconfig</primary></indexterm>
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[c6cb3aa] | 318 | <para>creates fastloading iconv module configuration file.</para>
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| 319 | </listitem>
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| 320 | </varlistentry>
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[673b0d8] | 321 |
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[c6cb3aa] | 322 | <varlistentry>
|
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| 323 | <term id="ldconfig"><command>ldconfig</command></term>
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| 324 | <listitem>
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[673b0d8] | 325 | <indexterm zone="ch-system-glibc ldconfig"><primary sortas="b-ldconfig">ldconfig</primary></indexterm>
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[c6cb3aa] | 326 | <para>configures the dynamic linker runtime bindings.</para>
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| 327 | </listitem>
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| 328 | </varlistentry>
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[673b0d8] | 329 |
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[c6cb3aa] | 330 | <varlistentry>
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| 331 | <term id="ldd"><command>ldd</command></term>
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| 332 | <listitem>
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[673b0d8] | 333 | <indexterm zone="ch-system-glibc ldd"><primary sortas="b-ldd">ldd</primary></indexterm>
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[c6cb3aa] | 334 | <para>reports which shared libraries are required
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[673b0d8] | 335 | by each given program or shared library.</para>
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[c6cb3aa] | 336 | </listitem>
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| 337 | </varlistentry>
|
---|
[673b0d8] | 338 |
|
---|
[c6cb3aa] | 339 | <varlistentry>
|
---|
| 340 | <term id="lddlibc4"><command>lddlibc4</command></term>
|
---|
| 341 | <listitem>
|
---|
[673b0d8] | 342 | <indexterm zone="ch-system-glibc lddlibc4"><primary sortas="b-lddlibc4">lddlibc4</primary></indexterm>
|
---|
[c6cb3aa] | 343 | <para>assists ldd with object files.</para>
|
---|
| 344 | </listitem>
|
---|
| 345 | </varlistentry>
|
---|
[673b0d8] | 346 |
|
---|
[c6cb3aa] | 347 | <varlistentry>
|
---|
| 348 | <term id="locale"><command>locale</command></term>
|
---|
| 349 | <listitem>
|
---|
[673b0d8] | 350 | <indexterm zone="ch-system-glibc locale"><primary sortas="b-locale">locale</primary></indexterm>
|
---|
[c6cb3aa] | 351 | <para>is a Perl program that tells the compiler
|
---|
[673b0d8] | 352 | to enable or disable the use of POSIX locales for built-in operations.</para>
|
---|
[c6cb3aa] | 353 | </listitem>
|
---|
| 354 | </varlistentry>
|
---|
[673b0d8] | 355 |
|
---|
[c6cb3aa] | 356 | <varlistentry>
|
---|
| 357 | <term id="localedef"><command>localedef</command></term>
|
---|
| 358 | <listitem>
|
---|
[673b0d8] | 359 | <indexterm zone="ch-system-glibc localedef"><primary sortas="b-localedef">localedef</primary></indexterm>
|
---|
[c6cb3aa] | 360 | <para>compiles locale specifications.</para>
|
---|
| 361 | </listitem>
|
---|
| 362 | </varlistentry>
|
---|
[673b0d8] | 363 |
|
---|
[c6cb3aa] | 364 | <varlistentry>
|
---|
| 365 | <term id="mtrace"><command>mtrace</command></term>
|
---|
| 366 | <listitem>
|
---|
[673b0d8] | 367 | <indexterm zone="ch-system-glibc mtrace"><primary sortas="b-mtrace">mtrace</primary></indexterm>
|
---|
[c6cb3aa] | 368 | <para>...</para>
|
---|
| 369 | </listitem>
|
---|
| 370 | </varlistentry>
|
---|
[673b0d8] | 371 |
|
---|
[c6cb3aa] | 372 | <varlistentry>
|
---|
| 373 | <term id="nscd"><command>nscd</command></term>
|
---|
| 374 | <listitem>
|
---|
[673b0d8] | 375 | <indexterm zone="ch-system-glibc nscd"><primary sortas="b-nscd">nscd</primary></indexterm>
|
---|
[c6cb3aa] | 376 | <para>is a name service cache daemon providing a
|
---|
[673b0d8] | 377 | cache for the most common name service requests.</para>
|
---|
[c6cb3aa] | 378 | </listitem>
|
---|
| 379 | </varlistentry>
|
---|
[673b0d8] | 380 |
|
---|
[c6cb3aa] | 381 | <varlistentry>
|
---|
| 382 | <term id="nscd_nischeck"><command>nscd_nischeck</command></term>
|
---|
| 383 | <listitem>
|
---|
[673b0d8] | 384 | <indexterm zone="ch-system-glibc nscd_nischeck"><primary sortas="b-nscd_nischeck">nscd_nischeck</primary></indexterm>
|
---|
[c6cb3aa] | 385 | <para>checks whether or not secure mode is necessary for NIS+ lookup.</para>
|
---|
| 386 | </listitem>
|
---|
| 387 | </varlistentry>
|
---|
[673b0d8] | 388 |
|
---|
[c6cb3aa] | 389 | <varlistentry>
|
---|
| 390 | <term id="pcprofiledump"><command>pcprofiledump</command></term>
|
---|
| 391 | <listitem>
|
---|
[673b0d8] | 392 | <indexterm zone="ch-system-glibc pcprofiledump"><primary sortas="b-pcprofiledump">pcprofiledump</primary></indexterm>
|
---|
[c6cb3aa] | 393 | <para>dumps information generated by PC profiling.</para>
|
---|
| 394 | </listitem>
|
---|
| 395 | </varlistentry>
|
---|
[673b0d8] | 396 |
|
---|
[c6cb3aa] | 397 | <varlistentry>
|
---|
| 398 | <term id="pt_chown"><command>pt_chown</command></term>
|
---|
| 399 | <listitem>
|
---|
[673b0d8] | 400 | <indexterm zone="ch-system-glibc pt_chown"><primary sortas="b-pt_chown">pt_chown</primary></indexterm>
|
---|
[c6cb3aa] | 401 | <para>is a helper program for grantpt to set
|
---|
[673b0d8] | 402 | the owner, group and access permissions of a slave pseudo terminal.</para>
|
---|
[c6cb3aa] | 403 | </listitem>
|
---|
| 404 | </varlistentry>
|
---|
[673b0d8] | 405 |
|
---|
[c6cb3aa] | 406 | <varlistentry>
|
---|
| 407 | <term id="rpcgen"><command>rpcgen</command></term>
|
---|
| 408 | <listitem>
|
---|
[673b0d8] | 409 | <indexterm zone="ch-system-glibc rpcgen"><primary sortas="b-rpcgen">rpcgen</primary></indexterm>
|
---|
[c6cb3aa] | 410 | <para>generates C code to implement the RPC protocol.</para>
|
---|
| 411 | </listitem>
|
---|
| 412 | </varlistentry>
|
---|
[673b0d8] | 413 |
|
---|
[c6cb3aa] | 414 | <varlistentry>
|
---|
| 415 | <term id="rpcinfo"><command>rpcinfo</command></term>
|
---|
| 416 | <listitem>
|
---|
[673b0d8] | 417 | <indexterm zone="ch-system-glibc rpcinfo"><primary sortas="b-rpcinfo">rpcinfo</primary></indexterm>
|
---|
[c6cb3aa] | 418 | <para>makes an RPC call to an RPC server.</para>
|
---|
| 419 | </listitem>
|
---|
| 420 | </varlistentry>
|
---|
[673b0d8] | 421 |
|
---|
[c6cb3aa] | 422 | <varlistentry>
|
---|
| 423 | <term id="sln"><command>sln</command></term>
|
---|
| 424 | <listitem>
|
---|
[673b0d8] | 425 | <indexterm zone="ch-system-glibc sln"><primary sortas="b-sln">sln</primary></indexterm>
|
---|
[c6cb3aa] | 426 | <para>is used to make symbolic links. The program
|
---|
[673b0d8] | 427 | is statically linked, so it is useful for making symbolic links to dynamic
|
---|
| 428 | libraries if the dynamic linking system for some reason is nonfunctional.</para>
|
---|
[c6cb3aa] | 429 | </listitem>
|
---|
| 430 | </varlistentry>
|
---|
[673b0d8] | 431 |
|
---|
[c6cb3aa] | 432 | <varlistentry>
|
---|
| 433 | <term id="sprof"><command>sprof</command></term>
|
---|
| 434 | <listitem>
|
---|
[673b0d8] | 435 | <indexterm zone="ch-system-glibc sprof"><primary sortas="b-sprof">sprof</primary></indexterm>
|
---|
[c6cb3aa] | 436 | <para>reads and displays shared object profiling data.</para>
|
---|
| 437 | </listitem>
|
---|
| 438 | </varlistentry>
|
---|
[4931dd3] | 439 |
|
---|
[c6cb3aa] | 440 | <varlistentry>
|
---|
| 441 | <term id="tzselect"><command>tzselect</command></term>
|
---|
| 442 | <listitem>
|
---|
[673b0d8] | 443 | <indexterm zone="ch-system-glibc tzselect"><primary sortas="b-tzselect">tzselect</primary></indexterm>
|
---|
[c6cb3aa] | 444 | <para>asks the user about the location of the
|
---|
[673b0d8] | 445 | system and reports the corresponding time zone description.</para>
|
---|
[c6cb3aa] | 446 | </listitem>
|
---|
| 447 | </varlistentry>
|
---|
[673b0d8] | 448 |
|
---|
[c6cb3aa] | 449 | <varlistentry>
|
---|
| 450 | <term id="xtrace"><command>xtrace</command></term>
|
---|
| 451 | <listitem>
|
---|
[673b0d8] | 452 | <indexterm zone="ch-system-glibc xtrace"><primary sortas="b-xtrace">xtrace</primary></indexterm>
|
---|
[c6cb3aa] | 453 | <para>traces the execution of a program by
|
---|
[673b0d8] | 454 | printing the currently executed function.</para>
|
---|
[c6cb3aa] | 455 | </listitem>
|
---|
| 456 | </varlistentry>
|
---|
[673b0d8] | 457 |
|
---|
[c6cb3aa] | 458 | <varlistentry>
|
---|
| 459 | <term id="zdump"><command>zdump</command></term>
|
---|
| 460 | <listitem>
|
---|
[673b0d8] | 461 | <indexterm zone="ch-system-glibc zdump"><primary sortas="b-zdump">zdump</primary></indexterm>
|
---|
[c6cb3aa] | 462 | <para>is the time zone dumper.</para>
|
---|
| 463 | </listitem>
|
---|
| 464 | </varlistentry>
|
---|
[673b0d8] | 465 |
|
---|
[c6cb3aa] | 466 | <varlistentry>
|
---|
| 467 | <term id="zic"><command>zic</command></term>
|
---|
| 468 | <listitem>
|
---|
[673b0d8] | 469 | <indexterm zone="ch-system-glibc zic"><primary sortas="b-zic">zic</primary></indexterm>
|
---|
[c6cb3aa] | 470 | <para>is the time zone compiler.</para>
|
---|
| 471 | </listitem>
|
---|
| 472 | </varlistentry>
|
---|
[673b0d8] | 473 |
|
---|
[c6cb3aa] | 474 | <varlistentry>
|
---|
| 475 | <term id="ld.so"><command>ld.so</command></term>
|
---|
| 476 | <listitem>
|
---|
[673b0d8] | 477 | <indexterm zone="ch-system-glibc ld.so"><primary sortas="c-ld.so">ld.so</primary></indexterm>
|
---|
[c6cb3aa] | 478 | <para>is the helper program for shared library executables.</para>
|
---|
| 479 | </listitem>
|
---|
| 480 | </varlistentry>
|
---|
[673b0d8] | 481 |
|
---|
[c6cb3aa] | 482 | <varlistentry>
|
---|
| 483 | <term id="libBrokenLocale"><command>libBrokenLocale</command></term>
|
---|
| 484 | <listitem>
|
---|
[673b0d8] | 485 | <indexterm zone="ch-system-glibc libBrokenLocale"><primary sortas="c-libBrokenLocale">libBrokenLocale</primary></indexterm>
|
---|
[c6cb3aa] | 486 | <para>is used by programs, such as Mozilla, to solve broken locales.</para>
|
---|
| 487 | </listitem>
|
---|
| 488 | </varlistentry>
|
---|
[673b0d8] | 489 |
|
---|
[c6cb3aa] | 490 | <varlistentry>
|
---|
| 491 | <term id="libSegFault"><command>libSegFault</command></term>
|
---|
| 492 | <listitem>
|
---|
[673b0d8] | 493 | <indexterm zone="ch-system-glibc libSegFault"><primary sortas="c-libSegFault">libSegFault</primary></indexterm>
|
---|
[c6cb3aa] | 494 | <para>is a segmentation fault signal handler. It tries to catch segfaults.</para>
|
---|
| 495 | </listitem>
|
---|
| 496 | </varlistentry>
|
---|
[673b0d8] | 497 |
|
---|
[c6cb3aa] | 498 | <varlistentry>
|
---|
| 499 | <term id="libanl"><command>libanl</command></term>
|
---|
| 500 | <listitem>
|
---|
[673b0d8] | 501 | <indexterm zone="ch-system-glibc libanl"><primary sortas="c-libanl">libanl</primary></indexterm>
|
---|
[c6cb3aa] | 502 | <para>is an asynchronous name lookup library.</para>
|
---|
| 503 | </listitem>
|
---|
| 504 | </varlistentry>
|
---|
[673b0d8] | 505 |
|
---|
[c6cb3aa] | 506 | <varlistentry>
|
---|
| 507 | <term id="libbsd-compat"><command>libbsd-compat</command></term>
|
---|
| 508 | <listitem>
|
---|
[673b0d8] | 509 | <indexterm zone="ch-system-glibc libbsd-compat"><primary sortas="c-libbsd-compat">libbsd-compat</primary></indexterm>
|
---|
[c6cb3aa] | 510 | <para>provides the portability needed
|
---|
[673b0d8] | 511 | in order to run certain BSD programs under Linux.</para>
|
---|
[c6cb3aa] | 512 | </listitem>
|
---|
| 513 | </varlistentry>
|
---|
[673b0d8] | 514 |
|
---|
[c6cb3aa] | 515 | <varlistentry>
|
---|
| 516 | <term id="libc"><command>libc</command></term>
|
---|
| 517 | <listitem>
|
---|
[673b0d8] | 518 | <indexterm zone="ch-system-glibc libc"><primary sortas="c-libc">libc</primary></indexterm>
|
---|
[c6cb3aa] | 519 | <para>is the main C library -- a collection of commonly used functions.</para>
|
---|
| 520 | </listitem>
|
---|
| 521 | </varlistentry>
|
---|
[673b0d8] | 522 |
|
---|
[c6cb3aa] | 523 | <varlistentry>
|
---|
| 524 | <term id="libcrypt"><command>libcrypt</command></term>
|
---|
| 525 | <listitem>
|
---|
[673b0d8] | 526 | <indexterm zone="ch-system-glibc libcrypt"><primary sortas="c-libcrypt">libcrypt</primary></indexterm>
|
---|
[c6cb3aa] | 527 | <para>is the cryptography library.</para>
|
---|
| 528 | </listitem>
|
---|
| 529 | </varlistentry>
|
---|
[673b0d8] | 530 |
|
---|
[c6cb3aa] | 531 | <varlistentry>
|
---|
| 532 | <term id="libdl"><command>libdl</command></term>
|
---|
| 533 | <listitem>
|
---|
[673b0d8] | 534 | <indexterm zone="ch-system-glibc libdl"><primary sortas="c-libdl">libdl</primary></indexterm>
|
---|
[c6cb3aa] | 535 | <para>is the dynamic linking interface library.</para>
|
---|
| 536 | </listitem>
|
---|
| 537 | </varlistentry>
|
---|
[673b0d8] | 538 |
|
---|
[c6cb3aa] | 539 | <varlistentry>
|
---|
| 540 | <term id="libg"><command>libg</command></term>
|
---|
| 541 | <listitem>
|
---|
[673b0d8] | 542 | <indexterm zone="ch-system-glibc libg"><primary sortas="c-libg">libg</primary></indexterm>
|
---|
[c6cb3aa] | 543 | <para>is a runtime library for g++.</para>
|
---|
| 544 | </listitem>
|
---|
| 545 | </varlistentry>
|
---|
[673b0d8] | 546 |
|
---|
[c6cb3aa] | 547 | <varlistentry>
|
---|
| 548 | <term id="libieee"><command>libieee</command></term>
|
---|
| 549 | <listitem>
|
---|
[673b0d8] | 550 | <indexterm zone="ch-system-glibc libieee"><primary sortas="c-libieee">libieee</primary></indexterm>
|
---|
[c6cb3aa] | 551 | <para>is the IEEE floating point library.</para>
|
---|
| 552 | </listitem>
|
---|
| 553 | </varlistentry>
|
---|
[673b0d8] | 554 |
|
---|
[c6cb3aa] | 555 | <varlistentry>
|
---|
| 556 | <term id="libm"><command>libm</command></term>
|
---|
| 557 | <listitem>
|
---|
[673b0d8] | 558 | <indexterm zone="ch-system-glibc libm"><primary sortas="c-libm">libm</primary></indexterm>
|
---|
[c6cb3aa] | 559 | <para>is the mathematical library.</para>
|
---|
| 560 | </listitem>
|
---|
| 561 | </varlistentry>
|
---|
[673b0d8] | 562 |
|
---|
[c6cb3aa] | 563 | <varlistentry>
|
---|
| 564 | <term id="libmcheck"><command>libmcheck</command></term>
|
---|
| 565 | <listitem>
|
---|
[673b0d8] | 566 | <indexterm zone="ch-system-glibc libmcheck"><primary sortas="c-libmcheck">libmcheck</primary></indexterm>
|
---|
[c6cb3aa] | 567 | <para>contains code run at boot.</para>
|
---|
| 568 | </listitem>
|
---|
| 569 | </varlistentry>
|
---|
[673b0d8] | 570 |
|
---|
[c6cb3aa] | 571 | <varlistentry>
|
---|
| 572 | <term id="libmemusage"><command>libmemusage</command></term>
|
---|
| 573 | <listitem>
|
---|
[673b0d8] | 574 | <indexterm zone="ch-system-glibc libmemusage"><primary sortas="c-libmemusage">libmemusage</primary></indexterm>
|
---|
[c6cb3aa] | 575 | <para>is used by memusage to help collect
|
---|
[673b0d8] | 576 | information about the memory usage of a program.</para>
|
---|
[c6cb3aa] | 577 | </listitem>
|
---|
| 578 | </varlistentry>
|
---|
[673b0d8] | 579 |
|
---|
[c6cb3aa] | 580 | <varlistentry>
|
---|
| 581 | <term id="libnsl"><command>libnsl</command></term>
|
---|
| 582 | <listitem>
|
---|
[673b0d8] | 583 | <indexterm zone="ch-system-glibc libnsl"><primary sortas="c-libnsl">libnsl</primary></indexterm>
|
---|
[c6cb3aa] | 584 | <para>is the network services library.</para>
|
---|
| 585 | </listitem>
|
---|
| 586 | </varlistentry>
|
---|
[673b0d8] | 587 |
|
---|
[c6cb3aa] | 588 | <varlistentry>
|
---|
| 589 | <term id="libnss"><command>libnss*</command></term>
|
---|
| 590 | <listitem>
|
---|
[673b0d8] | 591 | <indexterm zone="ch-system-glibc libnss"><primary sortas="c-libnss*">libnss*</primary></indexterm>
|
---|
[c6cb3aa] | 592 | <para>are the Name Service Switch libraries,
|
---|
[673b0d8] | 593 | containing functions for resolving host names, user names, group names,
|
---|
| 594 | aliases, services, protocols,and the like.</para>
|
---|
[c6cb3aa] | 595 | </listitem>
|
---|
| 596 | </varlistentry>
|
---|
[673b0d8] | 597 |
|
---|
[c6cb3aa] | 598 | <varlistentry>
|
---|
| 599 | <term id="libpcprofile"><command>libpcprofile</command></term>
|
---|
| 600 | <listitem>
|
---|
[673b0d8] | 601 | <indexterm zone="ch-system-glibc libpcprofile"><primary sortas="c-libpcprofile">libpcprofile</primary></indexterm>
|
---|
[c6cb3aa] | 602 | <para>contains profiling functions used
|
---|
[673b0d8] | 603 | to track the amount of CPU time spent in which source code lines.</para>
|
---|
[c6cb3aa] | 604 | </listitem>
|
---|
| 605 | </varlistentry>
|
---|
[673b0d8] | 606 |
|
---|
[c6cb3aa] | 607 | <varlistentry>
|
---|
| 608 | <term id="libpthread"><command>libpthread</command></term>
|
---|
| 609 | <listitem>
|
---|
[673b0d8] | 610 | <indexterm zone="ch-system-glibc libpthread"><primary sortas="c-libpthread">libpthread</primary></indexterm>
|
---|
[c6cb3aa] | 611 | <para>is the POSIX threads library.</para>
|
---|
| 612 | </listitem>
|
---|
| 613 | </varlistentry>
|
---|
[673b0d8] | 614 |
|
---|
[c6cb3aa] | 615 | <varlistentry>
|
---|
| 616 | <term id="libresolv"><command>libresolv</command></term>
|
---|
| 617 | <listitem>
|
---|
[673b0d8] | 618 | <indexterm zone="ch-system-glibc libresolv"><primary sortas="c-libresolv">libresolv</primary></indexterm>
|
---|
[c6cb3aa] | 619 | <para>contains functions for creating,
|
---|
[673b0d8] | 620 | sending, and interpreting packets to the Internet domain name servers.</para>
|
---|
[c6cb3aa] | 621 | </listitem>
|
---|
| 622 | </varlistentry>
|
---|
[673b0d8] | 623 |
|
---|
[c6cb3aa] | 624 | <varlistentry>
|
---|
| 625 | <term id="librpcsvc"><command>librpcsvc</command></term>
|
---|
| 626 | <listitem>
|
---|
[673b0d8] | 627 | <indexterm zone="ch-system-glibc librpcsvc"><primary sortas="c-librpcsvc">librpcsvc</primary></indexterm>
|
---|
[c6cb3aa] | 628 | <para>contains functions providing miscellaneous RPC services.</para>
|
---|
| 629 | </listitem>
|
---|
| 630 | </varlistentry>
|
---|
[673b0d8] | 631 |
|
---|
[c6cb3aa] | 632 | <varlistentry>
|
---|
| 633 | <term id="librt"><command>librt</command></term>
|
---|
| 634 | <listitem>
|
---|
[673b0d8] | 635 | <indexterm zone="ch-system-glibc librt"><primary sortas="c-librt">librt</primary></indexterm>
|
---|
[c6cb3aa] | 636 | <para>contains functions providing most of the
|
---|
[673b0d8] | 637 | interfaces specified by the POSIX.1b Realtime Extension.</para>
|
---|
[c6cb3aa] | 638 | </listitem>
|
---|
| 639 | </varlistentry>
|
---|
[673b0d8] | 640 |
|
---|
[c6cb3aa] | 641 | <varlistentry>
|
---|
| 642 | <term id="libthread_db"><command>libthread_db</command></term>
|
---|
| 643 | <listitem>
|
---|
[673b0d8] | 644 | <indexterm zone="ch-system-glibc libthread_db"><primary sortas="c-libthread_db">libthread_db</primary></indexterm>
|
---|
[c6cb3aa] | 645 | <para>contains functions useful for
|
---|
[673b0d8] | 646 | building debuggers for multi-threaded programs.</para>
|
---|
[c6cb3aa] | 647 | </listitem>
|
---|
| 648 | </varlistentry>
|
---|
[673b0d8] | 649 |
|
---|
[c6cb3aa] | 650 | <varlistentry>
|
---|
| 651 | <term id="libutil"><command>libutil</command></term>
|
---|
| 652 | <listitem>
|
---|
[673b0d8] | 653 | <indexterm zone="ch-system-glibc libutil"><primary sortas="c-libutil">libutil</primary></indexterm>
|
---|
[c6cb3aa] | 654 | <para>contains code for "standard" functions used in many different Unix utilities.</para>
|
---|
| 655 | </listitem>
|
---|
| 656 | </varlistentry>
|
---|
| 657 | </variablelist>
|
---|
[673b0d8] | 658 |
|
---|
| 659 | </sect2>
|
---|
| 660 |
|
---|
| 661 | </sect1>
|
---|