[673b0d8] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[c2133bc] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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[673b0d8] | 3 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 4 | %general-entities;
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| 5 | ]>
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[752f4e5] | 6 | <sect1 id="ch-system-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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[69993f4] | 13 | <para>The Glibc package contains the main C library. This library provides
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[5888299] | 14 | the basic routines for allocating memory, searching directories, opening and
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[69993f4] | 15 | closing files, reading and writing files, string handling, pattern matching,
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[5888299] | 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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[a0e1913] | 25 | <segtitle>&dependencies;</segtitle>
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[a001133] | 26 | <seglistitem><seg>Bash, Binutils, Coreutils, Diffutils,
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[69993f4] | 27 | Gawk, GCC, Gettext, Grep, Make, Perl, Sed, and Texinfo</seg></seglistitem>
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[a001133] | 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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[f5ccac81] | 34 | <para>This package is known to behave badly when you change its default
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[24a08b9] | 35 | optimization flags (including the <parameter>-march</parameter> and
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[f5ccac81] | 36 | <parameter>-mcpu</parameter> options). Therefore, if you have defined any
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| 37 | environment variables that override default optimizations, such as CFLAGS and
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| 38 | CXXFLAGS, we recommend un-setting them when building Glibc.</para>
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| 39 |
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| 40 | <para arch="ppc;raq2">Unpack the glibc-linuxthreads-&glibc-version; <emphasis>and</emphasis> the
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| 41 | glibc-libidn-&glibc-version; tarball -- they will unfold into the same directory.</para>
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| 42 |
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| 43 | <para arch="alpha;x86">Unpack the glibc-libidn-&glibc-version; tarball -- it
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| 44 | will unfold into the same directory.</para>
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[24a08b9] | 45 |
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[ef13657] | 46 | <para>The Glibc build system is self-contained and will install
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| 47 | perfectly, even though the compiler specs file and linker are still
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| 48 | pointing at <filename class="directory">/tools</filename>. The specs
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| 49 | and linker cannot be adjusted before the Glibc install because the
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[69993f4] | 50 | Glibc autoconf tests would give false results and defeat the goal
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[ef13657] | 51 | of achieving a clean build.</para>
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[73aedd1d] | 52 |
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[0fe057b] | 53 | <para arch="raq2">The following patch corrects the building of syscall.h::</para>
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| 54 |
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| 55 | <screen arch="raq2"><userinput>patch -Np1 -i ../glibc-&glibc-version;-mips_syscall-2.patch</userinput></screen>
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| 56 |
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[a50b6b7] | 57 | <para arch="ppc;raq2">NPTL is not supported under this architecture, so we are going to
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[83865af] | 58 | remove the nptl directory from the Glibc source:</para>
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| 59 |
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[a50b6b7] | 60 | <screen arch="ppc;raq2"><userinput>rm -rf nptl*</userinput></screen>
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[83865af] | 61 |
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[73aedd1d] | 62 | <para>The Glibc documentation recommends building Glibc outside of the source
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| 63 | directory in a dedicated build directory:</para>
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| 64 |
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| 65 | <screen><userinput>mkdir ../glibc-build
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| 66 | cd ../glibc-build</userinput></screen>
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| 67 |
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[69993f4] | 68 | <para>Prepare Glibc for compilation:</para>
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[73aedd1d] | 69 |
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[9dfc02f] | 70 | <screen><userinput>../glibc-&glibc-version;/configure --prefix=/usr \
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[0932530] | 71 | --disable-profile --enable-add-ons --enable-kernel=2.6.0 \
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[407d336] | 72 | --libexecdir=/usr/lib/glibc</userinput></screen>
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[73aedd1d] | 73 |
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[ef13657] | 74 | <para>The meaning of the new configure option:</para>
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| 75 |
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| 76 | <variablelist>
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| 77 | <varlistentry>
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| 78 | <term><parameter>--libexecdir=/usr/lib/glibc</parameter></term>
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| 79 | <listitem><para>This changes the location of the
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| 80 | <command>pt_chown</command> program from its default of <filename
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| 81 | class="directory">/usr/libexec</filename> to <filename
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| 82 | class="directory">/usr/lib/glibc</filename>.</para></listitem>
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| 83 | </varlistentry>
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| 84 | </variablelist>
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| 85 |
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[73aedd1d] | 86 | <para>Compile the package:</para>
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| 87 |
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| 88 | <screen><userinput>make</userinput></screen>
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| 89 |
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[ef13657] | 90 | <important><para>In this section, the test suite for Glibc is
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| 91 | considered critical. Do not skip it under any
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[90afe40d] | 92 | circumstance.</para></important>
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| 93 |
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[73aedd1d] | 94 | <para>Test the results:</para>
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| 95 |
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| 96 | <screen><userinput>make check</userinput></screen>
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| 97 |
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[ef13657] | 98 | <para>The Glibc test suite is highly dependent on certain functions of
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| 99 | the host system, in particular the kernel. In general, the Glibc test
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| 100 | suite is always expected to pass. However, in certain circumstances,
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| 101 | some failures are unavoidable. This is a list of the most common
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| 102 | issues:</para>
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[d878ce3] | 103 |
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| 104 | <itemizedlist>
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| 105 | <listitem><para>The <emphasis>math</emphasis> tests sometimes fail when running
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| 106 | on systems where the CPU is not a relatively new genuine Intel or authentic AMD.
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| 107 | Certain optimization settings are also known to be a factor here.</para></listitem>
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| 108 |
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| 109 | <listitem><para>The <emphasis>gettext</emphasis> test sometimes fails due to
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| 110 | host system issues. The exact reasons are not yet clear.</para></listitem>
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| 111 |
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[ef13657] | 112 | <listitem><para>The <emphasis>atime</emphasis> test sometimes fails
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| 113 | when the LFS partition is mounted with the
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[69993f4] | 114 | <parameter>noatime</parameter> option.</para></listitem>
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[ef13657] | 115 |
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| 116 | <listitem><para>The <emphasis>shm</emphasis> test can fail when the
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| 117 | host system is using the <systemitem
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| 118 | class="filesystem">devfs</systemitem> file system but does not have
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| 119 | the <systemitem class="filesystem">tmpfs</systemitem> file system
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| 120 | mounted at <filename class="directory">/dev/shm</filename>. This
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[752f4e5] | 121 | occurs because of a lack of support for <systemitem
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| 122 | class="filesystem">tmpfs</systemitem> in the
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[ef13657] | 123 | kernel.</para></listitem>
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| 124 |
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| 125 | <listitem><para>When running on older and slower hardware, some tests
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| 126 | can fail because of test timeouts being exceeded.</para></listitem>
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[d878ce3] | 127 | </itemizedlist>
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[73aedd1d] | 128 |
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[1caa48e] | 129 | <para>Though it is a harmless message, the install stage of Glibc will
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[ef13657] | 130 | complain about the absence of <filename>/etc/ld.so.conf</filename>.
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| 131 | Prevent this warning with:</para>
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[1caa48e] | 132 |
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| 133 | <screen><userinput>touch /etc/ld.so.conf</userinput></screen>
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| 134 |
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[ef13657] | 135 | <para>Install the package:</para>
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[73aedd1d] | 136 |
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| 137 | <screen><userinput>make install</userinput></screen>
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| 138 |
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[ef13657] | 139 | <para>The locales that can make the system respond in a different
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| 140 | language were not installed by the above command. Install this
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| 141 | with:</para>
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[73aedd1d] | 142 |
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| 143 | <screen><userinput>make localedata/install-locales</userinput></screen>
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| 144 |
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[69993f4] | 145 | <para>To save time, an alternative to running the
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[ef13657] | 146 | previous command (which generates and installs every locale Glibc is
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| 147 | aware of) is to install only those locales that are wanted and needed.
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| 148 | This can be achieved by using the <command>localedef</command>
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| 149 | command. Information on this command is located in the
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| 150 | <filename>INSTALL</filename> file in the Glibc source. However, there
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| 151 | are a number of locales that are essential in order for the tests of
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| 152 | future packages to pass, in particular, the
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| 153 | <emphasis>libstdc++</emphasis> tests from GCC. The following
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[752f4e5] | 154 | instructions, instead of the <parameter>install-locales</parameter>
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[ef13657] | 155 | target used above, will install the minimum set of locales necessary
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| 156 | for the tests to run successfully:</para>
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[73aedd1d] | 157 |
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| 158 | <screen><userinput>mkdir -p /usr/lib/locale
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| 159 | localedef -i de_DE -f ISO-8859-1 de_DE
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| 160 | localedef -i de_DE@euro -f ISO-8859-15 de_DE@euro
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| 161 | localedef -i en_HK -f ISO-8859-1 en_HK
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| 162 | localedef -i en_PH -f ISO-8859-1 en_PH
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| 163 | localedef -i en_US -f ISO-8859-1 en_US
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| 164 | localedef -i es_MX -f ISO-8859-1 es_MX
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[673b0d8] | 165 | localedef -i fa_IR -f UTF-8 fa_IR
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[73aedd1d] | 166 | localedef -i fr_FR -f ISO-8859-1 fr_FR
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| 167 | localedef -i fr_FR@euro -f ISO-8859-15 fr_FR@euro
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| 168 | localedef -i it_IT -f ISO-8859-1 it_IT
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| 169 | localedef -i ja_JP -f EUC-JP ja_JP</userinput></screen>
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| 170 |
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[ef13657] | 171 | <para>Some locales installed by the <command>make
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| 172 | localedata/install-locales</command> command above are not properly
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| 173 | supported by some applications that are in the LFS and BLFS books.
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| 174 | Because of the various problems that arise due to application
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| 175 | programmers making assumptions that break in such locales, LFS should
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| 176 | not be used in locales that utilize multibyte character sets
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| 177 | (including UTF-8) or right-to-left writing order. Numerous unofficial
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| 178 | and unstable patches are required to fix these problems, and it has
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[69993f4] | 179 | been decided by the LFS developers not to support such complex locales. This applies to the
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| 180 | ja_JP and fa_IR locales as well—they have been installed only for
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| 181 | GCC and Gettext tests to pass, and the <command>watch</command> program
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[ef13657] | 182 | (part of the Procps package) does not work properly in them. Various
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| 183 | attempts to circumvent these restrictions are documented in
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| 184 | internationalization-related hints.</para>
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| 185 |
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| 186 | <para>Build the linuxthreads man pages, which are a great reference
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[9dfc02f] | 187 | on the threading API (applicable to NPTL as well):</para>
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[73aedd1d] | 188 |
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[f5ccac81] | 189 | <para arch="alpha;x86">Unpack the glibc-linuxthreads-&glibc-version; tarball -- it
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| 190 | is needed for the next two make commands. You can ignore this if you do want
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| 191 | the threading API man pages.</para>
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| 192 |
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[9dfc02f] | 193 | <screen><userinput>make -C ../glibc-&glibc-version;/linuxthreads/man</userinput></screen>
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[73aedd1d] | 194 |
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[ef13657] | 195 | <para>Install these pages:</para>
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[73aedd1d] | 196 |
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[9dfc02f] | 197 | <screen><userinput>make -C ../glibc-&glibc-version;/linuxthreads/man install</userinput></screen>
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[73aedd1d] | 198 |
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| 199 | </sect2>
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[5888299] | 200 |
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[8c16bf7] | 201 | <sect2 id="conf-glibc" role="configuration"><title>Configuring Glibc</title>
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[673b0d8] | 202 | <indexterm zone="conf-glibc"><primary sortas="e-/etc/nsswitch.conf">/etc/nsswitch.conf</primary></indexterm>
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| 203 | <indexterm zone="conf-glibc"><primary sortas="e-/etc/localtime">/etc/localtime</primary></indexterm>
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[342b176] | 204 |
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[ef13657] | 205 | <para>The <filename>/etc/nsswitch.conf</filename> file needs to be
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| 206 | created because, although Glibc provides defaults when this file is
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| 207 | missing or corrupt, the Glibc defaults do not work well with
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| 208 | networking. The time zone also needs to be set up.</para>
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[342b176] | 209 |
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| 210 | <para>Create a new file <filename>/etc/nsswitch.conf</filename> by running the
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| 211 | following:</para>
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| 212 |
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[bb55064] | 213 | <screen><userinput>cat > /etc/nsswitch.conf << "EOF"
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[3890f5a] | 214 | <literal># Begin /etc/nsswitch.conf
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[342b176] | 215 |
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| 216 | passwd: files
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| 217 | group: files
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| 218 | shadow: files
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| 219 |
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| 220 | hosts: files dns
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| 221 | networks: files
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| 222 |
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[4a80bec] | 223 | protocols: files
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| 224 | services: files
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| 225 | ethers: files
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| 226 | rpc: files
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[342b176] | 227 |
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[3890f5a] | 228 | # End /etc/nsswitch.conf</literal>
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[bb55064] | 229 | EOF</userinput></screen>
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[342b176] | 230 |
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[69993f4] | 231 | <para>To determine the local time zone, run the following script:</para>
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[342b176] | 232 |
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| 233 | <screen><userinput>tzselect</userinput></screen>
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| 234 |
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[ef13657] | 235 | <para>After answering a few questions about the location, the script
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| 236 | will output the name of the time zone (e.g.,
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| 237 | <emphasis>EST5EDT</emphasis> or <emphasis>Canada/Eastern</emphasis>).
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| 238 | Then create the <filename>/etc/localtime</filename> file by
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| 239 | running:</para>
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[342b176] | 240 |
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[00cc7ce] | 241 | <screen><userinput>cp --remove-destination /usr/share/zoneinfo/<replaceable>[xxx]</replaceable> \
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| 242 | /etc/localtime</userinput></screen>
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[342b176] | 243 |
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[76c5c80] | 244 | <para>Replace <replaceable>[xxx]</replaceable> with the name of the time zone that the
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[ef13657] | 245 | <command>tzselect</command> provided (e.g., Canada/Eastern).</para>
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| 246 |
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| 247 | <para>The meaning of the cp option:</para>
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[342b176] | 248 |
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[b8a819f] | 249 | <variablelist>
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| 250 | <varlistentry>
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[bb55064] | 251 | <term><parameter>--remove-destination</parameter></term>
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[ef13657] | 252 | <listitem><para>This is needed to force removal of the already
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| 253 | existing symbolic link. The reason for copying the file instead of
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| 254 | using a symlink is to cover the situation where <filename
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| 255 | class="directory">/usr</filename> is on a separate partition. This
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| 256 | could be important when booted into single user
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| 257 | mode.</para></listitem>
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[b8a819f] | 258 | </varlistentry>
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| 259 | </variablelist>
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[342b176] | 260 |
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| 261 | </sect2>
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| 262 |
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| 263 |
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[8c16bf7] | 264 | <sect2 id="conf-ld" role="configuration">
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[342b176] | 265 | <title>Configuring Dynamic Loader</title>
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[673b0d8] | 266 | <indexterm zone="conf-ld"><primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary></indexterm>
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[342b176] | 267 |
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[ef13657] | 268 | <para>By default, the dynamic loader (<filename
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| 269 | class="libraryfile">/lib/ld-linux.so.2</filename>) searches through
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| 270 | <filename class="directory">/lib</filename> and <filename
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| 271 | class="directory">/usr/lib</filename> for dynamic libraries that are
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| 272 | needed by programs as they are run. However, if there are libraries in
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[342b176] | 273 | directories other than <filename class="directory">/lib</filename> and
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[ef13657] | 274 | <filename class="directory">/usr/lib</filename>, these need to be
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[69993f4] | 275 | added to the <filename>/etc/ld.so.conf</filename> file in order
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[ef13657] | 276 | for the dynamic loader to find them. Two directories that are commonly
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| 277 | known to contain additional libraries are <filename
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| 278 | class="directory">/usr/local/lib</filename> and <filename
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| 279 | class="directory">/opt/lib</filename>, so add those directories to the
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[342b176] | 280 | dynamic loader's search path.</para>
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| 281 |
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| 282 | <para>Create a new file <filename>/etc/ld.so.conf</filename> by running the
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| 283 | following:</para>
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| 284 |
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[bb55064] | 285 | <screen><userinput>cat > /etc/ld.so.conf << "EOF"
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[3890f5a] | 286 | <literal># Begin /etc/ld.so.conf
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[342b176] | 287 |
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| 288 | /usr/local/lib
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| 289 | /opt/lib
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| 290 |
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[3890f5a] | 291 | # End /etc/ld.so.conf</literal>
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[bb55064] | 292 | EOF</userinput></screen>
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[342b176] | 293 |
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[b48b8c5] | 294 |
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[342b176] | 295 | </sect2>
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[5888299] | 296 |
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[c6cb3aa] | 297 | <sect2 id="contents-glibc" role="content"><title>Contents of Glibc</title>
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[673b0d8] | 298 |
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[c6cb3aa] | 299 | <segmentedlist>
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| 300 | <segtitle>Installed programs</segtitle>
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| 301 | <segtitle>Installed libraries</segtitle>
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| 302 | <seglistitem><seg>catchsegv, gencat, getconf,
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[5094150b] | 303 | getent, iconv, iconvconfig, ldconfig, ldd, lddlibc4, locale,
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[673b0d8] | 304 | localedef, mtrace, nscd, nscd_nischeck, pcprofiledump, pt_chown, rpcgen,
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[69993f4] | 305 | rpcinfo, sln, sprof, tzselect, xtrace, zdump, and zic</seg>
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[c6cb3aa] | 306 | <seg>ld.so, libBrokenLocale.[a,so],
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[dadb405] | 307 | libSegFault.so, libanl.[a,so], libbsd-compat.a, libc.[a,so],
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[673b0d8] | 308 | libcrypt.[a,so], libdl.[a,so], libg.a, libieee.a, libm.[a,so], libmcheck.a,
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| 309 | libmemusage.so, libnsl.a, libnss_compat.so, libnss_dns.so, libnss_files.so,
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| 310 | libnss_hesiod.so, libnss_nis.so, libnss_nisplus.so, libpcprofile.so,
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[69993f4] | 311 | libpthread.[a,so], libresolv.[a,so], librpcsvc.a, librt.[a,so],
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| 312 | libthread_db.so, and libutil.[a,so]</seg></seglistitem>
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[c6cb3aa] | 313 | </segmentedlist>
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[673b0d8] | 314 |
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[2256873] | 315 | <variablelist><bridgehead renderas="sect3">Short Descriptions</bridgehead>
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[3ed279f] | 316 | <?dbfo list-presentation="list"?>
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[673b0d8] | 317 |
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[b8a819f] | 318 | <varlistentry id="catchsegv">
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| 319 | <term><command>catchsegv</command></term>
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[c6cb3aa] | 320 | <listitem>
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[2256873] | 321 | <para>Can be used to create a stack trace when a program
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| 322 | terminates with a segmentation fault</para>
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[3ed279f] | 323 | <indexterm zone="ch-system-glibc catchsegv"><primary sortas="b-catchsegv">catchsegv</primary></indexterm>
|
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[c6cb3aa] | 324 | </listitem>
|
---|
| 325 | </varlistentry>
|
---|
[673b0d8] | 326 |
|
---|
[b8a819f] | 327 | <varlistentry id="gencat">
|
---|
| 328 | <term><command>gencat</command></term>
|
---|
[c6cb3aa] | 329 | <listitem>
|
---|
[2256873] | 330 | <para>Generates message catalogues</para>
|
---|
[3ed279f] | 331 | <indexterm zone="ch-system-glibc gencat"><primary sortas="b-gencat">gencat</primary></indexterm>
|
---|
[c6cb3aa] | 332 | </listitem>
|
---|
| 333 | </varlistentry>
|
---|
[673b0d8] | 334 |
|
---|
[b8a819f] | 335 | <varlistentry id="getconf">
|
---|
| 336 | <term><command>getconf</command></term>
|
---|
[c6cb3aa] | 337 | <listitem>
|
---|
[2256873] | 338 | <para>Displays the system configuration values for file system specific variables</para>
|
---|
[3ed279f] | 339 | <indexterm zone="ch-system-glibc getconf"><primary sortas="b-getconf">getconf</primary></indexterm>
|
---|
[c6cb3aa] | 340 | </listitem>
|
---|
| 341 | </varlistentry>
|
---|
[673b0d8] | 342 |
|
---|
[b8a819f] | 343 | <varlistentry id="getent">
|
---|
| 344 | <term><command>getent</command></term>
|
---|
[c6cb3aa] | 345 | <listitem>
|
---|
[2256873] | 346 | <para>Gets entries from an administrative database</para>
|
---|
[3ed279f] | 347 | <indexterm zone="ch-system-glibc getent"><primary sortas="b-getent">getent</primary></indexterm>
|
---|
[c6cb3aa] | 348 | </listitem>
|
---|
| 349 | </varlistentry>
|
---|
[673b0d8] | 350 |
|
---|
[b8a819f] | 351 | <varlistentry id="iconv">
|
---|
| 352 | <term><command>iconv</command></term>
|
---|
[c6cb3aa] | 353 | <listitem>
|
---|
[2256873] | 354 | <para>Performs character set conversion</para>
|
---|
[3ed279f] | 355 | <indexterm zone="ch-system-glibc iconv"><primary sortas="b-iconv">iconv</primary></indexterm>
|
---|
[c6cb3aa] | 356 | </listitem>
|
---|
| 357 | </varlistentry>
|
---|
[673b0d8] | 358 |
|
---|
[b8a819f] | 359 | <varlistentry id="iconvconfig">
|
---|
| 360 | <term><command>iconvconfig</command></term>
|
---|
[c6cb3aa] | 361 | <listitem>
|
---|
[2256873] | 362 | <para>Creates fastloading <command>iconv</command> module configuration files</para>
|
---|
[3ed279f] | 363 | <indexterm zone="ch-system-glibc iconvconfig"><primary sortas="b-iconvconfig">iconvconfig</primary></indexterm>
|
---|
[c6cb3aa] | 364 | </listitem>
|
---|
| 365 | </varlistentry>
|
---|
[673b0d8] | 366 |
|
---|
[b8a819f] | 367 | <varlistentry id="ldconfig">
|
---|
| 368 | <term><command>ldconfig</command></term>
|
---|
[c6cb3aa] | 369 | <listitem>
|
---|
[2256873] | 370 | <para>Configures the dynamic linker runtime bindings</para>
|
---|
[3ed279f] | 371 | <indexterm zone="ch-system-glibc ldconfig"><primary sortas="b-ldconfig">ldconfig</primary></indexterm>
|
---|
[c6cb3aa] | 372 | </listitem>
|
---|
| 373 | </varlistentry>
|
---|
[673b0d8] | 374 |
|
---|
[b8a819f] | 375 | <varlistentry id="ldd">
|
---|
| 376 | <term><command>ldd</command></term>
|
---|
[c6cb3aa] | 377 | <listitem>
|
---|
[2256873] | 378 | <para>Reports which shared libraries are required
|
---|
| 379 | by each given program or shared library</para>
|
---|
[3ed279f] | 380 | <indexterm zone="ch-system-glibc ldd"><primary sortas="b-ldd">ldd</primary></indexterm>
|
---|
[c6cb3aa] | 381 | </listitem>
|
---|
| 382 | </varlistentry>
|
---|
[673b0d8] | 383 |
|
---|
[b8a819f] | 384 | <varlistentry id="lddlibc4">
|
---|
| 385 | <term><command>lddlibc4</command></term>
|
---|
[c6cb3aa] | 386 | <listitem>
|
---|
[2256873] | 387 | <para>Assists <command>ldd</command> with object files</para>
|
---|
[3ed279f] | 388 | <indexterm zone="ch-system-glibc lddlibc4"><primary sortas="b-lddlibc4">lddlibc4</primary></indexterm>
|
---|
[c6cb3aa] | 389 | </listitem>
|
---|
| 390 | </varlistentry>
|
---|
[673b0d8] | 391 |
|
---|
[b8a819f] | 392 | <varlistentry id="locale">
|
---|
| 393 | <term><command>locale</command></term>
|
---|
[c6cb3aa] | 394 | <listitem>
|
---|
[2256873] | 395 | <para>Tells the compiler to enable or disable the use of POSIX locales
|
---|
| 396 | for built-in operations</para>
|
---|
[3ed279f] | 397 | <indexterm zone="ch-system-glibc locale"><primary sortas="b-locale">locale</primary></indexterm>
|
---|
[c6cb3aa] | 398 | </listitem>
|
---|
| 399 | </varlistentry>
|
---|
[673b0d8] | 400 |
|
---|
[b8a819f] | 401 | <varlistentry id="localedef">
|
---|
| 402 | <term><command>localedef</command></term>
|
---|
[c6cb3aa] | 403 | <listitem>
|
---|
[2256873] | 404 | <para>Compiles locale specifications</para>
|
---|
[3ed279f] | 405 | <indexterm zone="ch-system-glibc localedef"><primary sortas="b-localedef">localedef</primary></indexterm>
|
---|
[c6cb3aa] | 406 | </listitem>
|
---|
| 407 | </varlistentry>
|
---|
[673b0d8] | 408 |
|
---|
[b8a819f] | 409 | <varlistentry id="mtrace">
|
---|
| 410 | <term><command>mtrace</command></term>
|
---|
[c6cb3aa] | 411 | <listitem>
|
---|
[2256873] | 412 | <para>Reads and interprets a memory trace file and
|
---|
| 413 | ouputs a summary in human-readable format</para>
|
---|
[3ed279f] | 414 | <indexterm zone="ch-system-glibc mtrace"><primary sortas="b-mtrace">mtrace</primary></indexterm>
|
---|
[c6cb3aa] | 415 | </listitem>
|
---|
| 416 | </varlistentry>
|
---|
[673b0d8] | 417 |
|
---|
[b8a819f] | 418 | <varlistentry id="nscd">
|
---|
| 419 | <term><command>nscd</command></term>
|
---|
[c6cb3aa] | 420 | <listitem>
|
---|
[2256873] | 421 | <para>A daemon that provides a cache for the most common name
|
---|
| 422 | service requests</para>
|
---|
[3ed279f] | 423 | <indexterm zone="ch-system-glibc nscd"><primary sortas="b-nscd">nscd</primary></indexterm>
|
---|
[c6cb3aa] | 424 | </listitem>
|
---|
| 425 | </varlistentry>
|
---|
[673b0d8] | 426 |
|
---|
[b8a819f] | 427 | <varlistentry id="nscd_nischeck">
|
---|
| 428 | <term><command>nscd_nischeck</command></term>
|
---|
[c6cb3aa] | 429 | <listitem>
|
---|
[2256873] | 430 | <para>Checks whether or not secure mode is necessary for NIS+ lookup</para>
|
---|
[3ed279f] | 431 | <indexterm zone="ch-system-glibc nscd_nischeck"><primary sortas="b-nscd_nischeck">nscd_nischeck</primary></indexterm>
|
---|
[c6cb3aa] | 432 | </listitem>
|
---|
| 433 | </varlistentry>
|
---|
[673b0d8] | 434 |
|
---|
[b8a819f] | 435 | <varlistentry id="pcprofiledump">
|
---|
| 436 | <term><command>pcprofiledump</command></term>
|
---|
[c6cb3aa] | 437 | <listitem>
|
---|
[2256873] | 438 | <para>Dumps information generated by PC profiling</para>
|
---|
[3ed279f] | 439 | <indexterm zone="ch-system-glibc pcprofiledump"><primary sortas="b-pcprofiledump">pcprofiledump</primary></indexterm>
|
---|
[c6cb3aa] | 440 | </listitem>
|
---|
| 441 | </varlistentry>
|
---|
[673b0d8] | 442 |
|
---|
[b8a819f] | 443 | <varlistentry id="pt_chown">
|
---|
| 444 | <term><command>pt_chown</command></term>
|
---|
[c6cb3aa] | 445 | <listitem>
|
---|
[2256873] | 446 | <para>A helper program for <command>grantpt</command> to set
|
---|
| 447 | the owner, group and access permissions of a slave pseudo terminal</para>
|
---|
[3ed279f] | 448 | <indexterm zone="ch-system-glibc pt_chown"><primary sortas="b-pt_chown">pt_chown</primary></indexterm>
|
---|
[c6cb3aa] | 449 | </listitem>
|
---|
| 450 | </varlistentry>
|
---|
[673b0d8] | 451 |
|
---|
[b8a819f] | 452 | <varlistentry id="rpcgen">
|
---|
| 453 | <term><command>rpcgen</command></term>
|
---|
[c6cb3aa] | 454 | <listitem>
|
---|
[2256873] | 455 | <para>Generates C code to implement the Remote Procecure Call (RPC) protocol</para>
|
---|
[3ed279f] | 456 | <indexterm zone="ch-system-glibc rpcgen"><primary sortas="b-rpcgen">rpcgen</primary></indexterm>
|
---|
[c6cb3aa] | 457 | </listitem>
|
---|
| 458 | </varlistentry>
|
---|
[673b0d8] | 459 |
|
---|
[b8a819f] | 460 | <varlistentry id="rpcinfo">
|
---|
| 461 | <term><command>rpcinfo</command></term>
|
---|
[c6cb3aa] | 462 | <listitem>
|
---|
[2256873] | 463 | <para>Makes an RPC call to an RPC server</para>
|
---|
[3ed279f] | 464 | <indexterm zone="ch-system-glibc rpcinfo"><primary sortas="b-rpcinfo">rpcinfo</primary></indexterm>
|
---|
[c6cb3aa] | 465 | </listitem>
|
---|
| 466 | </varlistentry>
|
---|
[673b0d8] | 467 |
|
---|
[b8a819f] | 468 | <varlistentry id="sln">
|
---|
| 469 | <term><command>sln</command></term>
|
---|
[c6cb3aa] | 470 | <listitem>
|
---|
[2256873] | 471 | <para>A statically linked <command>ln</command> program</para>
|
---|
[3ed279f] | 472 | <indexterm zone="ch-system-glibc sln"><primary sortas="b-sln">sln</primary></indexterm>
|
---|
[c6cb3aa] | 473 | </listitem>
|
---|
| 474 | </varlistentry>
|
---|
[673b0d8] | 475 |
|
---|
[b8a819f] | 476 | <varlistentry id="sprof">
|
---|
| 477 | <term><command>sprof</command></term>
|
---|
[c6cb3aa] | 478 | <listitem>
|
---|
[2256873] | 479 | <para>Reads and displays shared object profiling data</para>
|
---|
[3ed279f] | 480 | <indexterm zone="ch-system-glibc sprof"><primary sortas="b-sprof">sprof</primary></indexterm>
|
---|
[c6cb3aa] | 481 | </listitem>
|
---|
| 482 | </varlistentry>
|
---|
[4931dd3] | 483 |
|
---|
[b8a819f] | 484 | <varlistentry id="tzselect">
|
---|
| 485 | <term><command>tzselect</command></term>
|
---|
[c6cb3aa] | 486 | <listitem>
|
---|
[2256873] | 487 | <para>Asks the user about the location of the
|
---|
| 488 | system and reports the corresponding time zone description</para>
|
---|
[3ed279f] | 489 | <indexterm zone="ch-system-glibc tzselect"><primary sortas="b-tzselect">tzselect</primary></indexterm>
|
---|
[c6cb3aa] | 490 | </listitem>
|
---|
| 491 | </varlistentry>
|
---|
[673b0d8] | 492 |
|
---|
[b8a819f] | 493 | <varlistentry id="xtrace">
|
---|
| 494 | <term><command>xtrace</command></term>
|
---|
[c6cb3aa] | 495 | <listitem>
|
---|
[2256873] | 496 | <para>Traces the execution of a program by
|
---|
| 497 | printing the currently executed function</para>
|
---|
[3ed279f] | 498 | <indexterm zone="ch-system-glibc xtrace"><primary sortas="b-xtrace">xtrace</primary></indexterm>
|
---|
[c6cb3aa] | 499 | </listitem>
|
---|
| 500 | </varlistentry>
|
---|
[673b0d8] | 501 |
|
---|
[b8a819f] | 502 | <varlistentry id="zdump">
|
---|
| 503 | <term><command>zdump</command></term>
|
---|
[c6cb3aa] | 504 | <listitem>
|
---|
[2256873] | 505 | <para>The time zone dumper</para>
|
---|
[3ed279f] | 506 | <indexterm zone="ch-system-glibc zdump"><primary sortas="b-zdump">zdump</primary></indexterm>
|
---|
[c6cb3aa] | 507 | </listitem>
|
---|
| 508 | </varlistentry>
|
---|
[673b0d8] | 509 |
|
---|
[b8a819f] | 510 | <varlistentry id="zic">
|
---|
| 511 | <term><command>zic</command></term>
|
---|
[c6cb3aa] | 512 | <listitem>
|
---|
[2256873] | 513 | <para>The time zone compiler</para>
|
---|
[3ed279f] | 514 | <indexterm zone="ch-system-glibc zic"><primary sortas="b-zic">zic</primary></indexterm>
|
---|
[c6cb3aa] | 515 | </listitem>
|
---|
| 516 | </varlistentry>
|
---|
[673b0d8] | 517 |
|
---|
[b8a819f] | 518 | <varlistentry id="ld.so">
|
---|
[bb55064] | 519 | <term><filename class="libraryfile">ld.so</filename></term>
|
---|
[c6cb3aa] | 520 | <listitem>
|
---|
[2256873] | 521 | <para>The helper program for shared library executables</para>
|
---|
[3ed279f] | 522 | <indexterm zone="ch-system-glibc ld.so"><primary sortas="c-ld.so">ld.so</primary></indexterm>
|
---|
[c6cb3aa] | 523 | </listitem>
|
---|
| 524 | </varlistentry>
|
---|
[673b0d8] | 525 |
|
---|
[b8a819f] | 526 | <varlistentry id="libBrokenLocale">
|
---|
[bb55064] | 527 | <term><filename class="libraryfile">libBrokenLocale</filename></term>
|
---|
[c6cb3aa] | 528 | <listitem>
|
---|
[2256873] | 529 | <para>Used by programs, such as Mozilla, to solve broken locales</para>
|
---|
[3ed279f] | 530 | <indexterm zone="ch-system-glibc libBrokenLocale"><primary sortas="c-libBrokenLocale">libBrokenLocale</primary></indexterm>
|
---|
[c6cb3aa] | 531 | </listitem>
|
---|
| 532 | </varlistentry>
|
---|
[673b0d8] | 533 |
|
---|
[b8a819f] | 534 | <varlistentry id="libSegFault">
|
---|
[bb55064] | 535 | <term><filename class="libraryfile">libSegFault</filename></term>
|
---|
[c6cb3aa] | 536 | <listitem>
|
---|
[2256873] | 537 | <para>The segmentation fault signal handler</para>
|
---|
[3ed279f] | 538 | <indexterm zone="ch-system-glibc libSegFault"><primary sortas="c-libSegFault">libSegFault</primary></indexterm>
|
---|
[c6cb3aa] | 539 | </listitem>
|
---|
| 540 | </varlistentry>
|
---|
[673b0d8] | 541 |
|
---|
[b8a819f] | 542 | <varlistentry id="libanl">
|
---|
[bb55064] | 543 | <term><filename class="libraryfile">libanl</filename></term>
|
---|
[c6cb3aa] | 544 | <listitem>
|
---|
[2256873] | 545 | <para>An asynchronous name lookup library</para>
|
---|
[3ed279f] | 546 | <indexterm zone="ch-system-glibc libanl"><primary sortas="c-libanl">libanl</primary></indexterm>
|
---|
[c6cb3aa] | 547 | </listitem>
|
---|
| 548 | </varlistentry>
|
---|
[673b0d8] | 549 |
|
---|
[b8a819f] | 550 | <varlistentry id="libbsd-compat">
|
---|
[bb55064] | 551 | <term><filename class="libraryfile">libbsd-compat</filename></term>
|
---|
[c6cb3aa] | 552 | <listitem>
|
---|
[2256873] | 553 | <para>Provides the portability needed
|
---|
| 554 | in order to run certain Berkey Software Distribution (BSD) programs under Linux</para>
|
---|
[3ed279f] | 555 | <indexterm zone="ch-system-glibc libbsd-compat"><primary sortas="c-libbsd-compat">libbsd-compat</primary></indexterm>
|
---|
[c6cb3aa] | 556 | </listitem>
|
---|
| 557 | </varlistentry>
|
---|
[673b0d8] | 558 |
|
---|
[b8a819f] | 559 | <varlistentry id="libc">
|
---|
[bb55064] | 560 | <term><filename class="libraryfile">libc</filename></term>
|
---|
[c6cb3aa] | 561 | <listitem>
|
---|
[2256873] | 562 | <para>The main C library</para>
|
---|
[3ed279f] | 563 | <indexterm zone="ch-system-glibc libc"><primary sortas="c-libc">libc</primary></indexterm>
|
---|
[c6cb3aa] | 564 | </listitem>
|
---|
| 565 | </varlistentry>
|
---|
[673b0d8] | 566 |
|
---|
[b8a819f] | 567 | <varlistentry id="libcrypt">
|
---|
[bb55064] | 568 | <term><filename class="libraryfile">libcrypt</filename></term>
|
---|
[c6cb3aa] | 569 | <listitem>
|
---|
[2256873] | 570 | <para>The cryptography library</para>
|
---|
[3ed279f] | 571 | <indexterm zone="ch-system-glibc libcrypt"><primary sortas="c-libcrypt">libcrypt</primary></indexterm>
|
---|
[c6cb3aa] | 572 | </listitem>
|
---|
| 573 | </varlistentry>
|
---|
[673b0d8] | 574 |
|
---|
[b8a819f] | 575 | <varlistentry id="libdl">
|
---|
[bb55064] | 576 | <term><filename class="libraryfile">libdl</filename></term>
|
---|
[c6cb3aa] | 577 | <listitem>
|
---|
[2256873] | 578 | <para>The dynamic linking interface library</para>
|
---|
[3ed279f] | 579 | <indexterm zone="ch-system-glibc libdl"><primary sortas="c-libdl">libdl</primary></indexterm>
|
---|
[c6cb3aa] | 580 | </listitem>
|
---|
| 581 | </varlistentry>
|
---|
[673b0d8] | 582 |
|
---|
[b8a819f] | 583 | <varlistentry id="libg">
|
---|
[bb55064] | 584 | <term><filename class="libraryfile">libg</filename></term>
|
---|
[c6cb3aa] | 585 | <listitem>
|
---|
[2256873] | 586 | <para>A runtime library for <command>g++</command></para>
|
---|
[3ed279f] | 587 | <indexterm zone="ch-system-glibc libg"><primary sortas="c-libg">libg</primary></indexterm>
|
---|
[c6cb3aa] | 588 | </listitem>
|
---|
| 589 | </varlistentry>
|
---|
[673b0d8] | 590 |
|
---|
[b8a819f] | 591 | <varlistentry id="libieee">
|
---|
[bb55064] | 592 | <term><filename class="libraryfile">libieee</filename></term>
|
---|
[c6cb3aa] | 593 | <listitem>
|
---|
[2256873] | 594 | <para>The Institute of Electrical and Electronic Engineers (IEEE) floating point library</para>
|
---|
[3ed279f] | 595 | <indexterm zone="ch-system-glibc libieee"><primary sortas="c-libieee">libieee</primary></indexterm>
|
---|
[c6cb3aa] | 596 | </listitem>
|
---|
| 597 | </varlistentry>
|
---|
[673b0d8] | 598 |
|
---|
[b8a819f] | 599 | <varlistentry id="libm">
|
---|
[bb55064] | 600 | <term><filename class="libraryfile">libm</filename></term>
|
---|
[c6cb3aa] | 601 | <listitem>
|
---|
[2256873] | 602 | <para>The mathematical library</para>
|
---|
[3ed279f] | 603 | <indexterm zone="ch-system-glibc libm"><primary sortas="c-libm">libm</primary></indexterm>
|
---|
[c6cb3aa] | 604 | </listitem>
|
---|
| 605 | </varlistentry>
|
---|
[673b0d8] | 606 |
|
---|
[b8a819f] | 607 | <varlistentry id="libmcheck">
|
---|
[bb55064] | 608 | <term><filename class="libraryfile">libmcheck</filename></term>
|
---|
[c6cb3aa] | 609 | <listitem>
|
---|
[2256873] | 610 | <para>Contains code run at boot</para>
|
---|
[3ed279f] | 611 | <indexterm zone="ch-system-glibc libmcheck"><primary sortas="c-libmcheck">libmcheck</primary></indexterm>
|
---|
[c6cb3aa] | 612 | </listitem>
|
---|
| 613 | </varlistentry>
|
---|
[673b0d8] | 614 |
|
---|
[b8a819f] | 615 | <varlistentry id="libmemusage">
|
---|
[bb55064] | 616 | <term><filename class="libraryfile">libmemusage</filename></term>
|
---|
[c6cb3aa] | 617 | <listitem>
|
---|
[2256873] | 618 | <para>Used by <command>memusage</command> to help collect
|
---|
| 619 | information about the memory usage of a program</para>
|
---|
[3ed279f] | 620 | <indexterm zone="ch-system-glibc libmemusage"><primary sortas="c-libmemusage">libmemusage</primary></indexterm>
|
---|
[c6cb3aa] | 621 | </listitem>
|
---|
| 622 | </varlistentry>
|
---|
[673b0d8] | 623 |
|
---|
[b8a819f] | 624 | <varlistentry id="libnsl">
|
---|
[bb55064] | 625 | <term><filename class="libraryfile">libnsl</filename></term>
|
---|
[c6cb3aa] | 626 | <listitem>
|
---|
[2256873] | 627 | <para>The network services library</para>
|
---|
[3ed279f] | 628 | <indexterm zone="ch-system-glibc libnsl"><primary sortas="c-libnsl">libnsl</primary></indexterm>
|
---|
[c6cb3aa] | 629 | </listitem>
|
---|
| 630 | </varlistentry>
|
---|
[673b0d8] | 631 |
|
---|
[b8a819f] | 632 | <varlistentry id="libnss">
|
---|
[2256873] | 633 | <term><filename class="libraryfile">libnss</filename></term>
|
---|
[c6cb3aa] | 634 | <listitem>
|
---|
[2256873] | 635 | <para>The Name Service Switch libraries,
|
---|
[673b0d8] | 636 | containing functions for resolving host names, user names, group names,
|
---|
[2256873] | 637 | aliases, services, protocols, etc</para>
|
---|
| 638 | <indexterm zone="ch-system-glibc libnss"><primary sortas="c-libnss">libnss</primary></indexterm>
|
---|
[c6cb3aa] | 639 | </listitem>
|
---|
| 640 | </varlistentry>
|
---|
[673b0d8] | 641 |
|
---|
[b8a819f] | 642 | <varlistentry id="libpcprofile">
|
---|
[bb55064] | 643 | <term><filename class="libraryfile">libpcprofile</filename></term>
|
---|
[c6cb3aa] | 644 | <listitem>
|
---|
[2256873] | 645 | <para>Contains profiling functions used
|
---|
| 646 | to track the amount of CPU time spent in specific source code lines</para>
|
---|
[3ed279f] | 647 | <indexterm zone="ch-system-glibc libpcprofile"><primary sortas="c-libpcprofile">libpcprofile</primary></indexterm>
|
---|
[c6cb3aa] | 648 | </listitem>
|
---|
| 649 | </varlistentry>
|
---|
[673b0d8] | 650 |
|
---|
[b8a819f] | 651 | <varlistentry id="libpthread">
|
---|
[bb55064] | 652 | <term><filename class="libraryfile">libpthread</filename></term>
|
---|
[c6cb3aa] | 653 | <listitem>
|
---|
[2256873] | 654 | <para>The POSIX threads library</para>
|
---|
[3ed279f] | 655 | <indexterm zone="ch-system-glibc libpthread"><primary sortas="c-libpthread">libpthread</primary></indexterm>
|
---|
[c6cb3aa] | 656 | </listitem>
|
---|
| 657 | </varlistentry>
|
---|
[673b0d8] | 658 |
|
---|
[b8a819f] | 659 | <varlistentry id="libresolv">
|
---|
[bb55064] | 660 | <term><filename class="libraryfile">libresolv</filename></term>
|
---|
[c6cb3aa] | 661 | <listitem>
|
---|
[2256873] | 662 | <para>Contains functions for creating,
|
---|
| 663 | sending, and interpreting packets to the Internet domain name servers</para>
|
---|
[3ed279f] | 664 | <indexterm zone="ch-system-glibc libresolv"><primary sortas="c-libresolv">libresolv</primary></indexterm>
|
---|
[c6cb3aa] | 665 | </listitem>
|
---|
| 666 | </varlistentry>
|
---|
[673b0d8] | 667 |
|
---|
[b8a819f] | 668 | <varlistentry id="librpcsvc">
|
---|
[bb55064] | 669 | <term><filename class="libraryfile">librpcsvc</filename></term>
|
---|
[c6cb3aa] | 670 | <listitem>
|
---|
[2256873] | 671 | <para>Contains functions providing miscellaneous RPC services</para>
|
---|
[3ed279f] | 672 | <indexterm zone="ch-system-glibc librpcsvc"><primary sortas="c-librpcsvc">librpcsvc</primary></indexterm>
|
---|
[c6cb3aa] | 673 | </listitem>
|
---|
| 674 | </varlistentry>
|
---|
[673b0d8] | 675 |
|
---|
[b8a819f] | 676 | <varlistentry id="librt">
|
---|
[bb55064] | 677 | <term><filename class="libraryfile">librt</filename></term>
|
---|
[c6cb3aa] | 678 | <listitem>
|
---|
[2256873] | 679 | <para>Contains functions providing most of the
|
---|
| 680 | interfaces specified by the POSIX.1b Realtime Extension</para>
|
---|
[3ed279f] | 681 | <indexterm zone="ch-system-glibc librt"><primary sortas="c-librt">librt</primary></indexterm>
|
---|
[c6cb3aa] | 682 | </listitem>
|
---|
| 683 | </varlistentry>
|
---|
[673b0d8] | 684 |
|
---|
[b8a819f] | 685 | <varlistentry id="libthread_db">
|
---|
[bb55064] | 686 | <term><filename class="libraryfile">libthread_db</filename></term>
|
---|
[c6cb3aa] | 687 | <listitem>
|
---|
[2256873] | 688 | <para>Contains functions useful for
|
---|
| 689 | building debuggers for multi-threaded programs</para>
|
---|
[3ed279f] | 690 | <indexterm zone="ch-system-glibc libthread_db"><primary sortas="c-libthread_db">libthread_db</primary></indexterm>
|
---|
[c6cb3aa] | 691 | </listitem>
|
---|
| 692 | </varlistentry>
|
---|
[673b0d8] | 693 |
|
---|
[b8a819f] | 694 | <varlistentry id="libutil">
|
---|
[bb55064] | 695 | <term><filename class="libraryfile">libutil</filename></term>
|
---|
[c6cb3aa] | 696 | <listitem>
|
---|
[2256873] | 697 | <para>Contains code for <quote>standard</quote> functions used in many different Unix utilities</para>
|
---|
[3ed279f] | 698 | <indexterm zone="ch-system-glibc libutil"><primary sortas="c-libutil">libutil</primary></indexterm>
|
---|
[c6cb3aa] | 699 | </listitem>
|
---|
| 700 | </varlistentry>
|
---|
| 701 | </variablelist>
|
---|
[673b0d8] | 702 |
|
---|
| 703 | </sect2>
|
---|
| 704 |
|
---|
| 705 | </sect1>
|
---|
[ef13657] | 706 |
|
---|