[3f8be484] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?> |
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[aa18ac0] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" |
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ |
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[3f8be484] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent"> |
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| 5 | %general-entities; |
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| 6 | ]> |
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| 7 | |
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[093b0e8] | 8 | <sect1 id="ch-system-eglibc" role="wrap"> |
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| 9 | <?dbhtml filename="eglibc.html"?> |
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[3f8be484] | 10 | |
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[093b0e8] | 11 | <title>EGLIBC-&eglibc-version;</title> |
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[3f8be484] | 12 | |
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[093b0e8] | 13 | <indexterm zone="ch-system-eglibc"> |
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| 14 | <primary sortas="a-EGLIBC">EGLIBC</primary> |
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[3f8be484] | 15 | </indexterm> |
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| 16 | |
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| 17 | <sect2 role="package"> |
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| 18 | <title/> |
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| 19 | |
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[093b0e8] | 20 | <para>The EGLIBC package contains the main C library. This library provides |
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[3f8be484] | 21 | the basic routines for allocating memory, searching directories, opening and |
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| 22 | closing files, reading and writing files, string handling, pattern matching, |
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| 23 | arithmetic, and so on.</para> |
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| 24 | |
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| 25 | </sect2> |
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| 26 | |
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| 27 | <sect2 role="installation"> |
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[093b0e8] | 28 | <title>Installation of EGLIBC</title> |
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[3f8be484] | 29 | |
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| 30 | <note os="z"> |
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[a1fb12f] | 31 | <para>Some packages outside of CLFS suggest installing GNU libiconv in |
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[3f8be484] | 32 | order to translate data from one encoding to another. The project's |
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| 33 | home page (<ulink url="http://www.gnu.org/software/libiconv/"/>) says |
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| 34 | <quote>This library provides an <function>iconv()</function> |
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| 35 | implementation, for use on systems which don't have one, or whose |
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[093b0e8] | 36 | implementation cannot convert from/to Unicode.</quote> EGLIBC provides |
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[3f8be484] | 37 | an <function>iconv()</function> implementation and can convert from/to |
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[a1fb12f] | 38 | Unicode, therefore libiconv is not required on a CLFS system.</para> |
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[3f8be484] | 39 | </note> |
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| 40 | |
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[093b0e8] | 41 | <para os="b">The EGLIBC build system is self-contained and will install |
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[3f8be484] | 42 | perfectly, even though the compiler specs file and linker are still |
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| 43 | pointing at <filename class="directory">/tools</filename>. The specs |
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[093b0e8] | 44 | and linker cannot be adjusted before the EGLIBC install because the |
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| 45 | EGLIBC Autoconf tests would give false results and defeat the goal |
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[3f8be484] | 46 | of achieving a clean build.</para> |
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| 47 | |
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[093b0e8] | 48 | <para os="e">The EGLIBC documentation recommends building EGLIBC outside of the |
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[3f8be484] | 49 | source directory in a dedicated build directory:</para> |
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| 50 | |
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[093b0e8] | 51 | <screen os="f"><userinput>mkdir -v ../eglibc-build |
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| 52 | cd ../eglibc-build</userinput></screen> |
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[3f8be484] | 53 | |
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[093b0e8] | 54 | <para os="g">Prepare EGLIBC for compilation:</para> |
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[3f8be484] | 55 | |
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[093b0e8] | 56 | <screen os="h"><userinput>../eglibc-&eglibc-version;/configure --prefix=/usr \ |
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[3f8be484] | 57 | --disable-profile --enable-add-ons --enable-kernel=2.6.0 \ |
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[093b0e8] | 58 | --libexecdir=/usr/lib/eglibc</userinput></screen> |
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[3f8be484] | 59 | |
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| 60 | <variablelist os="i"> |
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| 61 | <title>The meaning of the new configure option:</title> |
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| 62 | |
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| 63 | <varlistentry> |
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[093b0e8] | 64 | <term><parameter>--libexecdir=/usr/lib/eglibc</parameter></term> |
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[3f8be484] | 65 | <listitem> |
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| 66 | <para>This changes the location of the <command>pt_chown</command> |
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| 67 | program from its default of <filename |
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| 68 | class="directory">/usr/libexec</filename> to <filename |
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[093b0e8] | 69 | class="directory">/usr/lib/eglibc</filename>.</para> |
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[3f8be484] | 70 | </listitem> |
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| 71 | </varlistentry> |
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| 72 | </variablelist> |
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| 73 | |
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| 74 | <para os="j">Compile the package:</para> |
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| 75 | |
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| 76 | <screen os="k"><userinput>make</userinput></screen> |
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| 77 | |
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| 78 | <important os="l"> |
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[093b0e8] | 79 | <para>The test suite for EGLIBC is considered critical. |
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[3f8be484] | 80 | Do not skip it under any circumstance.</para> |
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| 81 | </important> |
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| 82 | |
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| 83 | <para os="m">Test the results:</para> |
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| 84 | |
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| 85 | <!-- items n,o,p no longer the master, use x86_64 which has no failures --> |
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| 86 | |
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[093b0e8] | 87 | <screen os="n"><userinput>make -k check >eglibc-check-log 2>&1 ; grep Error eglibc-check-log</userinput></screen> |
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[3f8be484] | 88 | |
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[093b0e8] | 89 | <para os="o">The EGLIBC test suite is highly dependent on certain functions of |
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[10b2850] | 90 | the host system, in particular the kernel. The posix/annexc test normally fails |
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| 91 | and you should see <literal>Error 1 (ignored)</literal> in the output. Apart |
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[093b0e8] | 92 | from this, the EGLIBC test suite is always expected to pass. However, in certain |
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[10b2850] | 93 | circumstances, some failures are unavoidable. If a test fails because of a missing |
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| 94 | program (or missing symbolic link), or a segfault, you will see an error code |
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| 95 | greater than 127 and the details will be in the log. More commonly, tests will |
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| 96 | fail with <literal>Error 2</literal> - for these, the contents of the corresponding |
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| 97 | <filename>.out</filename> file, e.g. <filename>posix/annexc.out</filename> may be |
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| 98 | informative. Here is a list of the most common issues:</para> |
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[3f8be484] | 99 | |
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| 100 | <itemizedlist os="p"> |
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| 101 | <listitem> |
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[3514708] | 102 | <para>The <emphasis>math</emphasis> tests sometimes fail. |
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| 103 | Certain optimization settings are known to be a |
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| 104 | factor here.</para> |
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[3f8be484] | 105 | </listitem> |
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| 106 | <listitem> |
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[fb40919] | 107 | <para>If you have mounted the CLFS partition with the |
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[3f8be484] | 108 | <parameter>noatime</parameter> option, the <emphasis>atime</emphasis> test |
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| 109 | will fail. As mentioned in <xref linkend="ch-partitioning-mounting"/>, |
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| 110 | do not use the <parameter>noatime</parameter> option while building |
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[fb40919] | 111 | CLFS.</para> |
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[3f8be484] | 112 | </listitem> |
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| 113 | <listitem> |
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| 114 | <para>When running on older and slower hardware, some tests |
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| 115 | can fail because of test timeouts being exceeded.</para> |
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| 116 | </listitem> |
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| 117 | </itemizedlist> |
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| 118 | |
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[093b0e8] | 119 | <para os="q">Though it is a harmless message, the install stage of EGLIBC will |
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[3f8be484] | 120 | complain about the absence of <filename>/etc/ld.so.conf</filename>. |
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| 121 | Prevent this warning with:</para> |
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| 122 | |
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| 123 | <screen os="r"><userinput>touch /etc/ld.so.conf</userinput></screen> |
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| 124 | |
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| 125 | <para os="s">Install the package:</para> |
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| 126 | |
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| 127 | <screen os="t"><userinput>make install</userinput></screen> |
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| 128 | |
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| 129 | </sect2> |
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| 130 | |
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[093b0e8] | 131 | <sect2 id="i18n-eglibc" role="configuration"> |
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[3f8be484] | 132 | <title>Internationalization</title> |
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| 133 | |
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| 134 | <para>The locales that can make the system respond in a different |
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[5a321cb] | 135 | language were not installed by the above command. Install them |
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[3f8be484] | 136 | with:</para> |
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| 137 | |
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| 138 | <screen><userinput>make localedata/install-locales</userinput></screen> |
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| 139 | |
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| 140 | <para>To save time, an alternative to running the previous command (which |
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[643f8be] | 141 | generates and installs every locale listed in the |
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[093b0e8] | 142 | eglibc-&eglibc-version;/localedata/SUPPORTED file) is to install only |
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[3f8be484] | 143 | those locales that are wanted and needed. This can be achieved by using |
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| 144 | the <command>localedef</command> command. Information on this command is |
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[093b0e8] | 145 | located in the <filename>INSTALL</filename> file in the EGLIBC source. |
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[3f8be484] | 146 | However, there are a number of locales that are essential in order for the |
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| 147 | tests of future packages to pass, in particular, the |
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| 148 | <emphasis>libstdc++</emphasis> tests from GCC. The following instructions, |
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| 149 | instead of the <parameter>install-locales</parameter> target used above, |
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| 150 | will install the minimum set of locales necessary for the tests to run |
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| 151 | successfully:</para> |
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| 152 | |
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[3a3e135] | 153 | <screen role="nodump"><userinput>mkdir -pv /usr/lib/locale |
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[8a10f1c] | 154 | localedef -i cs_CZ -f UTF-8 cs_CZ.UTF-8 |
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[3f8be484] | 155 | localedef -i de_DE -f ISO-8859-1 de_DE |
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| 156 | localedef -i de_DE@euro -f ISO-8859-15 de_DE@euro |
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| 157 | localedef -i en_HK -f ISO-8859-1 en_HK |
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| 158 | localedef -i en_PH -f ISO-8859-1 en_PH |
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| 159 | localedef -i en_US -f ISO-8859-1 en_US |
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| 160 | localedef -i es_MX -f ISO-8859-1 es_MX |
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| 161 | localedef -i fa_IR -f UTF-8 fa_IR |
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| 162 | localedef -i fr_FR -f ISO-8859-1 fr_FR |
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| 163 | localedef -i fr_FR@euro -f ISO-8859-15 fr_FR@euro |
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| 164 | localedef -i it_IT -f ISO-8859-1 it_IT |
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| 165 | localedef -i ja_JP -f EUC-JP ja_JP</userinput></screen> |
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| 166 | |
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| 167 | <para>Some locales installed by the <command>make |
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| 168 | localedata/install-locales</command> command above are not properly |
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[e3a8717] | 169 | supported by some applications that are in CLFS and CBLFS. Because |
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[3f8be484] | 170 | of the various problems that arise due to application programmers making |
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[fb40919] | 171 | assumptions that break in such locales, CLFS should not be used in locales |
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[3f8be484] | 172 | that utilize multibyte character sets (including UTF-8) or right-to-left |
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| 173 | writing order. Numerous unofficial and unstable patches are required to |
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[fb40919] | 174 | fix these problems, and it has been decided by the CLFS developers not to |
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[643f8be] | 175 | support such complex locales at this time. This applies to the ja_JP and |
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| 176 | fa_IR locales as well—they have been installed only for GCC and |
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| 177 | Gettext tests to pass, and the <command>watch</command> program (part of |
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| 178 | the Procps package) does not work properly in them. Various attempts to |
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| 179 | circumvent these restrictions are documented in internationalization-related |
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| 180 | hints.</para> |
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[3f8be484] | 181 | |
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| 182 | </sect2> |
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| 183 | |
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[093b0e8] | 184 | <sect2 id="conf-eglibc" role="configuration"> |
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| 185 | <title>Configuring EGLIBC</title> |
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[3f8be484] | 186 | |
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[093b0e8] | 187 | <indexterm zone="conf-eglibc"> |
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[3f8be484] | 188 | <primary sortas="e-/etc/nsswitch.conf">/etc/nsswitch.conf</primary> |
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| 189 | </indexterm> |
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| 190 | |
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[093b0e8] | 191 | <indexterm zone="conf-eglibc"> |
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[3f8be484] | 192 | <primary sortas="e-/etc/localtime">/etc/localtime</primary> |
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| 193 | </indexterm> |
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| 194 | |
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| 195 | <para>The <filename>/etc/nsswitch.conf</filename> file needs to be created |
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[093b0e8] | 196 | because, although EGLIBC provides defaults when this file is missing or |
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| 197 | corrupt, the EGLIBC defaults do not work well in a networked environment. |
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[3f8be484] | 198 | The time zone also needs to be configured.</para> |
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| 199 | |
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| 200 | <para>Create a new file <filename>/etc/nsswitch.conf</filename> by running |
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| 201 | the following:</para> |
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| 202 | |
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| 203 | <screen><userinput>cat > /etc/nsswitch.conf << "EOF" |
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| 204 | <literal># Begin /etc/nsswitch.conf |
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| 205 | |
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| 206 | passwd: files |
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| 207 | group: files |
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| 208 | shadow: files |
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| 209 | |
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| 210 | hosts: files dns |
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| 211 | networks: files |
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| 212 | |
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| 213 | protocols: files |
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| 214 | services: files |
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| 215 | ethers: files |
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| 216 | rpc: files |
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| 217 | |
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| 218 | # End /etc/nsswitch.conf</literal> |
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| 219 | EOF</userinput></screen> |
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| 220 | |
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| 221 | <para>To determine the local time zone, run the following script:</para> |
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| 222 | |
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[0f3854e] | 223 | <screen role="nodump"><userinput>tzselect</userinput></screen> |
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[3f8be484] | 224 | |
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| 225 | <para>After answering a few questions about the location, the script will |
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| 226 | output the name of the time zone (e.g., <emphasis>EST5EDT</emphasis> or |
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| 227 | <emphasis>Canada/Eastern</emphasis>). Then create the |
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| 228 | <filename>/etc/localtime</filename> file by running:</para> |
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| 229 | |
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[94e6142] | 230 | <screen><userinput>cp -v --remove-destination /usr/share/zoneinfo/<replaceable>[xxx]</replaceable> \ |
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[3f8be484] | 231 | /etc/localtime</userinput></screen> |
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| 232 | |
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| 233 | <para>Replace <replaceable>[xxx]</replaceable> with the name of the time zone |
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| 234 | that <command>tzselect</command> provided (e.g., Canada/Eastern).</para> |
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| 235 | |
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| 236 | <variablelist> |
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| 237 | <title>The meaning of the cp option:</title> |
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| 238 | |
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| 239 | <varlistentry> |
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| 240 | <term><parameter>--remove-destination</parameter></term> |
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| 241 | <listitem> |
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| 242 | <para>This is needed to force removal of the already existing symbolic |
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| 243 | link. The reason for copying the file instead of using a symlink is to |
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| 244 | cover the situation where <filename class="directory">/usr</filename> |
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| 245 | is on a separate partition. This could be important when booted into |
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| 246 | single user mode.</para> |
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| 247 | </listitem> |
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| 248 | </varlistentry> |
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| 249 | </variablelist> |
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| 250 | |
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| 251 | </sect2> |
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| 252 | |
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| 253 | <sect2 id="conf-ld" role="configuration"> |
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[0b637f1] | 254 | <title>Configuring The Dynamic Loader</title> |
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[3f8be484] | 255 | |
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| 256 | <indexterm zone="conf-ld"> |
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| 257 | <primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary> |
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| 258 | </indexterm> |
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| 259 | |
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[3998188] | 260 | <para os="ld-a">By default, the dynamic loader (<filename |
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[3f8be484] | 261 | class="libraryfile">/lib/ld-linux.so.2</filename>) searches through |
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| 262 | <filename class="directory">/lib</filename> and <filename |
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| 263 | class="directory">/usr/lib</filename> for dynamic libraries that are |
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| 264 | needed by programs as they are run. However, if there are libraries in |
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| 265 | directories other than <filename class="directory">/lib</filename> and |
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| 266 | <filename class="directory">/usr/lib</filename>, these need to be |
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| 267 | added to the <filename>/etc/ld.so.conf</filename> file in order |
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| 268 | for the dynamic loader to find them. Two directories that are commonly |
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| 269 | known to contain additional libraries are <filename |
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| 270 | class="directory">/usr/local/lib</filename> and <filename |
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| 271 | class="directory">/opt/lib</filename>, so add those directories to the |
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| 272 | dynamic loader's search path.</para> |
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| 273 | |
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[3998188] | 274 | <para os="ld-b">Create a new file <filename>/etc/ld.so.conf</filename> by running the |
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[3f8be484] | 275 | following:</para> |
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| 276 | |
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[3998188] | 277 | <screen os="ld-c"><userinput>cat > /etc/ld.so.conf << "EOF" |
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[3f8be484] | 278 | <literal># Begin /etc/ld.so.conf |
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| 279 | |
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| 280 | /usr/local/lib |
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| 281 | /opt/lib |
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| 282 | |
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| 283 | # End /etc/ld.so.conf</literal> |
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| 284 | EOF</userinput></screen> |
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| 285 | |
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| 286 | </sect2> |
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| 287 | |
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[093b0e8] | 288 | <sect2 id="contents-eglibc" role="content"> |
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| 289 | <title>Contents of EGLIBC</title> |
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[3f8be484] | 290 | |
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| 291 | <segmentedlist> |
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| 292 | <segtitle>Installed programs</segtitle> |
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| 293 | <segtitle>Installed libraries</segtitle> |
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| 294 | |
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| 295 | <seglistitem> |
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| 296 | <seg>catchsegv, gencat, getconf, getent, iconv, iconvconfig, ldconfig, |
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[1e91bbd] | 297 | ldd, lddlibc4, locale, localedef, mtrace, nscd, |
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[3f8be484] | 298 | pcprofiledump, pt_chown, rpcgen, rpcinfo, sln, sprof, tzselect, xtrace, |
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| 299 | zdump, and zic</seg> |
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| 300 | <seg>ld.so, libBrokenLocale.[a,so], libSegFault.so, libanl.[a,so], |
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| 301 | libbsd-compat.a, libc.[a,so], libcrypt.[a,so], libdl.[a,so], libg.a, |
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| 302 | libieee.a, libm.[a,so], libmcheck.a, libmemusage.so, libnsl.a, |
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| 303 | libnss_compat.so, libnss_dns.so, libnss_files.so, libnss_hesiod.so, |
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| 304 | libnss_nis.so, libnss_nisplus.so, libpcprofile.so, libpthread.[a,so], |
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| 305 | libresolv.[a,so], librpcsvc.a, librt.[a,so], libthread_db.so, and |
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| 306 | libutil.[a,so]</seg> |
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| 307 | </seglistitem> |
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| 308 | </segmentedlist> |
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| 309 | |
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| 310 | <variablelist> |
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| 311 | <bridgehead renderas="sect3">Short Descriptions</bridgehead> |
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| 312 | <?dbfo list-presentation="list"?> |
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| 313 | <?dbhtml list-presentation="table"?> |
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| 314 | |
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| 315 | <varlistentry id="catchsegv"> |
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| 316 | <term><command>catchsegv</command></term> |
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| 317 | <listitem> |
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| 318 | <para>Can be used to create a stack trace when a program |
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| 319 | terminates with a segmentation fault</para> |
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[093b0e8] | 320 | <indexterm zone="ch-system-eglibc catchsegv"> |
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[3f8be484] | 321 | <primary sortas="b-catchsegv">catchsegv</primary> |
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| 322 | </indexterm> |
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| 323 | </listitem> |
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| 324 | </varlistentry> |
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| 325 | |
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| 326 | <varlistentry id="gencat"> |
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| 327 | <term><command>gencat</command></term> |
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| 328 | <listitem> |
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| 329 | <para>Generates message catalogues</para> |
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[093b0e8] | 330 | <indexterm zone="ch-system-eglibc gencat"> |
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[3f8be484] | 331 | <primary sortas="b-gencat">gencat</primary> |
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| 332 | </indexterm> |
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| 333 | </listitem> |
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| 334 | </varlistentry> |
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| 335 | |
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| 336 | <varlistentry id="getconf"> |
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| 337 | <term><command>getconf</command></term> |
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| 338 | <listitem> |
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| 339 | <para>Displays the system configuration values for file system specific |
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| 340 | variables</para> |
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[093b0e8] | 341 | <indexterm zone="ch-system-eglibc getconf"> |
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[3f8be484] | 342 | <primary sortas="b-getconf">getconf</primary> |
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| 343 | </indexterm> |
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| 344 | </listitem> |
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| 345 | </varlistentry> |
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| 346 | |
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| 347 | <varlistentry id="getent"> |
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| 348 | <term><command>getent</command></term> |
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| 349 | <listitem> |
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| 350 | <para>Gets entries from an administrative database</para> |
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[093b0e8] | 351 | <indexterm zone="ch-system-eglibc getent"> |
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[3f8be484] | 352 | <primary sortas="b-getent">getent</primary> |
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| 353 | </indexterm> |
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| 354 | </listitem> |
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| 355 | </varlistentry> |
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| 356 | |
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| 357 | <varlistentry id="iconv"> |
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| 358 | <term><command>iconv</command></term> |
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| 359 | <listitem> |
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| 360 | <para>Performs character set conversion</para> |
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[093b0e8] | 361 | <indexterm zone="ch-system-eglibc iconv"> |
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[3f8be484] | 362 | <primary sortas="b-iconv">iconv</primary> |
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| 363 | </indexterm> |
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| 364 | </listitem> |
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| 365 | </varlistentry> |
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| 366 | |
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| 367 | <varlistentry id="iconvconfig"> |
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| 368 | <term><command>iconvconfig</command></term> |
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| 369 | <listitem> |
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| 370 | <para>Creates fastloading <command>iconv</command> module configuration |
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| 371 | files</para> |
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[093b0e8] | 372 | <indexterm zone="ch-system-eglibc iconvconfig"> |
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[3f8be484] | 373 | <primary sortas="b-iconvconfig">iconvconfig</primary> |
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| 374 | </indexterm> |
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| 375 | </listitem> |
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| 376 | </varlistentry> |
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| 377 | |
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| 378 | <varlistentry id="ldconfig"> |
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| 379 | <term><command>ldconfig</command></term> |
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| 380 | <listitem> |
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| 381 | <para>Configures the dynamic linker runtime bindings</para> |
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[093b0e8] | 382 | <indexterm zone="ch-system-eglibc ldconfig"> |
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[3f8be484] | 383 | <primary sortas="b-ldconfig">ldconfig</primary> |
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| 384 | </indexterm> |
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| 385 | </listitem> |
---|
| 386 | </varlistentry> |
---|
| 387 | |
---|
| 388 | <varlistentry id="ldd"> |
---|
| 389 | <term><command>ldd</command></term> |
---|
| 390 | <listitem> |
---|
| 391 | <para>Reports which shared libraries are required |
---|
| 392 | by each given program or shared library</para> |
---|
[093b0e8] | 393 | <indexterm zone="ch-system-eglibc ldd"> |
---|
[3f8be484] | 394 | <primary sortas="b-ldd">ldd</primary> |
---|
| 395 | </indexterm> |
---|
| 396 | </listitem> |
---|
| 397 | </varlistentry> |
---|
| 398 | |
---|
| 399 | <varlistentry id="lddlibc4"> |
---|
| 400 | <term><command>lddlibc4</command></term> |
---|
| 401 | <listitem> |
---|
| 402 | <para>Assists <command>ldd</command> with object files</para> |
---|
[093b0e8] | 403 | <indexterm zone="ch-system-eglibc lddlibc4"> |
---|
[3f8be484] | 404 | <primary sortas="b-lddlibc4">lddlibc4</primary> |
---|
| 405 | </indexterm> |
---|
| 406 | </listitem> |
---|
| 407 | </varlistentry> |
---|
| 408 | |
---|
| 409 | <varlistentry id="locale"> |
---|
| 410 | <term><command>locale</command></term> |
---|
| 411 | <listitem> |
---|
| 412 | <para>Tells the compiler to enable or disable the use of POSIX locales |
---|
| 413 | for built-in operations</para> |
---|
[093b0e8] | 414 | <indexterm zone="ch-system-eglibc locale"> |
---|
[3f8be484] | 415 | <primary sortas="b-locale">locale</primary> |
---|
| 416 | </indexterm> |
---|
| 417 | </listitem> |
---|
| 418 | </varlistentry> |
---|
| 419 | |
---|
| 420 | <varlistentry id="localedef"> |
---|
| 421 | <term><command>localedef</command></term> |
---|
| 422 | <listitem> |
---|
| 423 | <para>Compiles locale specifications</para> |
---|
[093b0e8] | 424 | <indexterm zone="ch-system-eglibc localedef"> |
---|
[3f8be484] | 425 | <primary sortas="b-localedef">localedef</primary> |
---|
| 426 | </indexterm> |
---|
| 427 | </listitem> |
---|
| 428 | </varlistentry> |
---|
| 429 | |
---|
| 430 | <varlistentry id="mtrace"> |
---|
| 431 | <term><command>mtrace</command></term> |
---|
| 432 | <listitem> |
---|
| 433 | <para>Reads and interprets a memory trace file and |
---|
| 434 | displays a summary in human-readable format</para> |
---|
[093b0e8] | 435 | <indexterm zone="ch-system-eglibc mtrace"> |
---|
[3f8be484] | 436 | <primary sortas="b-mtrace">mtrace</primary> |
---|
| 437 | </indexterm> |
---|
| 438 | </listitem> |
---|
| 439 | </varlistentry> |
---|
| 440 | |
---|
| 441 | <varlistentry id="nscd"> |
---|
| 442 | <term><command>nscd</command></term> |
---|
| 443 | <listitem> |
---|
| 444 | <para>A daemon that provides a cache for the most common name |
---|
| 445 | service requests</para> |
---|
[093b0e8] | 446 | <indexterm zone="ch-system-eglibc nscd"> |
---|
[3f8be484] | 447 | <primary sortas="b-nscd">nscd</primary> |
---|
| 448 | </indexterm> |
---|
| 449 | </listitem> |
---|
| 450 | </varlistentry> |
---|
| 451 | |
---|
| 452 | <varlistentry id="pcprofiledump"> |
---|
| 453 | <term><command>pcprofiledump</command></term> |
---|
| 454 | <listitem> |
---|
| 455 | <para>Dumps information generated by PC profiling</para> |
---|
[093b0e8] | 456 | <indexterm zone="ch-system-eglibc pcprofiledump"> |
---|
[3f8be484] | 457 | <primary sortas="b-pcprofiledump">pcprofiledump</primary> |
---|
| 458 | </indexterm> |
---|
| 459 | </listitem> |
---|
| 460 | </varlistentry> |
---|
| 461 | |
---|
| 462 | <varlistentry id="pt_chown"> |
---|
| 463 | <term><command>pt_chown</command></term> |
---|
| 464 | <listitem> |
---|
| 465 | <para>A helper program for <command>grantpt</command> to set the owner, |
---|
| 466 | group and access permissions of a slave pseudo terminal</para> |
---|
[093b0e8] | 467 | <indexterm zone="ch-system-eglibc pt_chown"> |
---|
[3f8be484] | 468 | <primary sortas="b-pt_chown">pt_chown</primary> |
---|
| 469 | </indexterm> |
---|
| 470 | </listitem> |
---|
| 471 | </varlistentry> |
---|
| 472 | |
---|
| 473 | <varlistentry id="rpcgen"> |
---|
| 474 | <term><command>rpcgen</command></term> |
---|
| 475 | <listitem> |
---|
| 476 | <para>Generates C code to implement the Remote Procecure Call (RPC) |
---|
| 477 | protocol</para> |
---|
[093b0e8] | 478 | <indexterm zone="ch-system-eglibc rpcgen"> |
---|
[3f8be484] | 479 | <primary sortas="b-rpcgen">rpcgen</primary> |
---|
| 480 | </indexterm> |
---|
| 481 | </listitem> |
---|
| 482 | </varlistentry> |
---|
| 483 | |
---|
| 484 | <varlistentry id="rpcinfo"> |
---|
| 485 | <term><command>rpcinfo</command></term> |
---|
| 486 | <listitem> |
---|
| 487 | <para>Makes an RPC call to an RPC server</para> |
---|
[093b0e8] | 488 | <indexterm zone="ch-system-eglibc rpcinfo"> |
---|
[3f8be484] | 489 | <primary sortas="b-rpcinfo">rpcinfo</primary> |
---|
| 490 | </indexterm> |
---|
| 491 | </listitem> |
---|
| 492 | </varlistentry> |
---|
| 493 | |
---|
| 494 | <varlistentry id="sln"> |
---|
| 495 | <term><command>sln</command></term> |
---|
| 496 | <listitem> |
---|
[7087cbc] | 497 | <para>A statically linked program that creates symbolic links</para> |
---|
[093b0e8] | 498 | <indexterm zone="ch-system-eglibc sln"> |
---|
[3f8be484] | 499 | <primary sortas="b-sln">sln</primary> |
---|
| 500 | </indexterm> |
---|
| 501 | </listitem> |
---|
| 502 | </varlistentry> |
---|
| 503 | |
---|
| 504 | <varlistentry id="sprof"> |
---|
| 505 | <term><command>sprof</command></term> |
---|
| 506 | <listitem> |
---|
| 507 | <para>Reads and displays shared object profiling data</para> |
---|
[093b0e8] | 508 | <indexterm zone="ch-system-eglibc sprof"> |
---|
[3f8be484] | 509 | <primary sortas="b-sprof">sprof</primary> |
---|
| 510 | </indexterm> |
---|
| 511 | </listitem> |
---|
| 512 | </varlistentry> |
---|
| 513 | |
---|
| 514 | <varlistentry id="tzselect"> |
---|
| 515 | <term><command>tzselect</command></term> |
---|
| 516 | <listitem> |
---|
| 517 | <para>Asks the user about the location of the |
---|
| 518 | system and reports the corresponding time zone description</para> |
---|
[093b0e8] | 519 | <indexterm zone="ch-system-eglibc tzselect"> |
---|
[3f8be484] | 520 | <primary sortas="b-tzselect">tzselect</primary> |
---|
| 521 | </indexterm> |
---|
| 522 | </listitem> |
---|
| 523 | </varlistentry> |
---|
| 524 | |
---|
| 525 | <varlistentry id="xtrace"> |
---|
| 526 | <term><command>xtrace</command></term> |
---|
| 527 | <listitem> |
---|
| 528 | <para>Traces the execution of a program by |
---|
| 529 | printing the currently executed function</para> |
---|
[093b0e8] | 530 | <indexterm zone="ch-system-eglibc xtrace"> |
---|
[3f8be484] | 531 | <primary sortas="b-xtrace">xtrace</primary> |
---|
| 532 | </indexterm> |
---|
| 533 | </listitem> |
---|
| 534 | </varlistentry> |
---|
| 535 | |
---|
| 536 | <varlistentry id="zdump"> |
---|
| 537 | <term><command>zdump</command></term> |
---|
| 538 | <listitem> |
---|
| 539 | <para>The time zone dumper</para> |
---|
[093b0e8] | 540 | <indexterm zone="ch-system-eglibc zdump"> |
---|
[3f8be484] | 541 | <primary sortas="b-zdump">zdump</primary> |
---|
| 542 | </indexterm> |
---|
| 543 | </listitem> |
---|
| 544 | </varlistentry> |
---|
| 545 | |
---|
| 546 | <varlistentry id="zic"> |
---|
| 547 | <term><command>zic</command></term> |
---|
| 548 | <listitem> |
---|
| 549 | <para>The time zone compiler</para> |
---|
[093b0e8] | 550 | <indexterm zone="ch-system-eglibc zic"> |
---|
[3f8be484] | 551 | <primary sortas="b-zic">zic</primary> |
---|
| 552 | </indexterm> |
---|
| 553 | </listitem> |
---|
| 554 | </varlistentry> |
---|
| 555 | |
---|
| 556 | <varlistentry id="ld.so"> |
---|
| 557 | <term><filename class="libraryfile">ld.so</filename></term> |
---|
| 558 | <listitem> |
---|
| 559 | <para>The helper program for shared library executables</para> |
---|
[093b0e8] | 560 | <indexterm zone="ch-system-eglibc ld.so"> |
---|
[3f8be484] | 561 | <primary sortas="c-ld.so">ld.so</primary> |
---|
| 562 | </indexterm> |
---|
| 563 | </listitem> |
---|
| 564 | </varlistentry> |
---|
| 565 | |
---|
| 566 | <varlistentry id="libBrokenLocale"> |
---|
| 567 | <term><filename class="libraryfile">libBrokenLocale</filename></term> |
---|
| 568 | <listitem> |
---|
| 569 | <para>Used by programs, such as Mozilla, to solve broken locales</para> |
---|
[093b0e8] | 570 | <indexterm zone="ch-system-eglibc libBrokenLocale"> |
---|
[3f8be484] | 571 | <primary sortas="c-libBrokenLocale">libBrokenLocale</primary> |
---|
| 572 | </indexterm> |
---|
| 573 | </listitem> |
---|
| 574 | </varlistentry> |
---|
| 575 | |
---|
| 576 | <varlistentry id="libSegFault"> |
---|
| 577 | <term><filename class="libraryfile">libSegFault</filename></term> |
---|
| 578 | <listitem> |
---|
| 579 | <para>The segmentation fault signal handler</para> |
---|
[093b0e8] | 580 | <indexterm zone="ch-system-eglibc libSegFault"> |
---|
[3f8be484] | 581 | <primary sortas="c-libSegFault">libSegFault</primary> |
---|
| 582 | </indexterm> |
---|
| 583 | </listitem> |
---|
| 584 | </varlistentry> |
---|
| 585 | |
---|
| 586 | <varlistentry id="libanl"> |
---|
| 587 | <term><filename class="libraryfile">libanl</filename></term> |
---|
| 588 | <listitem> |
---|
| 589 | <para>An asynchronous name lookup library</para> |
---|
[093b0e8] | 590 | <indexterm zone="ch-system-eglibc libanl"> |
---|
[3f8be484] | 591 | <primary sortas="c-libanl">libanl</primary> |
---|
| 592 | </indexterm> |
---|
| 593 | </listitem> |
---|
| 594 | </varlistentry> |
---|
| 595 | |
---|
| 596 | <varlistentry id="libbsd-compat"> |
---|
| 597 | <term><filename class="libraryfile">libbsd-compat</filename></term> |
---|
| 598 | <listitem> |
---|
| 599 | <para>Provides the portability needed |
---|
| 600 | in order to run certain Berkey Software Distribution (BSD) programs |
---|
| 601 | under Linux</para> |
---|
[093b0e8] | 602 | <indexterm zone="ch-system-eglibc libbsd-compat"> |
---|
[3f8be484] | 603 | <primary sortas="c-libbsd-compat">libbsd-compat</primary> |
---|
| 604 | </indexterm> |
---|
| 605 | </listitem> |
---|
| 606 | </varlistentry> |
---|
| 607 | |
---|
| 608 | <varlistentry id="libc"> |
---|
| 609 | <term><filename class="libraryfile">libc</filename></term> |
---|
| 610 | <listitem> |
---|
| 611 | <para>The main C library</para> |
---|
[093b0e8] | 612 | <indexterm zone="ch-system-eglibc libc"> |
---|
[3f8be484] | 613 | <primary sortas="c-libc">libc</primary> |
---|
| 614 | </indexterm> |
---|
| 615 | </listitem> |
---|
| 616 | </varlistentry> |
---|
| 617 | |
---|
| 618 | <varlistentry id="libcrypt"> |
---|
| 619 | <term><filename class="libraryfile">libcrypt</filename></term> |
---|
| 620 | <listitem> |
---|
| 621 | <para>The cryptography library</para> |
---|
[093b0e8] | 622 | <indexterm zone="ch-system-eglibc libcrypt"> |
---|
[3f8be484] | 623 | <primary sortas="c-libcrypt">libcrypt</primary> |
---|
| 624 | </indexterm> |
---|
| 625 | </listitem> |
---|
| 626 | </varlistentry> |
---|
| 627 | |
---|
| 628 | <varlistentry id="libdl"> |
---|
| 629 | <term><filename class="libraryfile">libdl</filename></term> |
---|
| 630 | <listitem> |
---|
| 631 | <para>The dynamic linking interface library</para> |
---|
[093b0e8] | 632 | <indexterm zone="ch-system-eglibc libdl"> |
---|
[3f8be484] | 633 | <primary sortas="c-libdl">libdl</primary> |
---|
| 634 | </indexterm> |
---|
| 635 | </listitem> |
---|
| 636 | </varlistentry> |
---|
| 637 | |
---|
| 638 | <varlistentry id="libg"> |
---|
| 639 | <term><filename class="libraryfile">libg</filename></term> |
---|
| 640 | <listitem> |
---|
| 641 | <para>A runtime library for <command>g++</command></para> |
---|
[093b0e8] | 642 | <indexterm zone="ch-system-eglibc libg"> |
---|
[3f8be484] | 643 | <primary sortas="c-libg">libg</primary> |
---|
| 644 | </indexterm> |
---|
| 645 | </listitem> |
---|
| 646 | </varlistentry> |
---|
| 647 | |
---|
| 648 | <varlistentry id="libieee"> |
---|
| 649 | <term><filename class="libraryfile">libieee</filename></term> |
---|
| 650 | <listitem> |
---|
| 651 | <para>The Institute of Electrical and Electronic Engineers (IEEE) |
---|
| 652 | floating point library</para> |
---|
[093b0e8] | 653 | <indexterm zone="ch-system-eglibc libieee"> |
---|
[3f8be484] | 654 | <primary sortas="c-libieee">libieee</primary> |
---|
| 655 | </indexterm> |
---|
| 656 | </listitem> |
---|
| 657 | </varlistentry> |
---|
| 658 | |
---|
| 659 | <varlistentry id="libm"> |
---|
| 660 | <term><filename class="libraryfile">libm</filename></term> |
---|
| 661 | <listitem> |
---|
| 662 | <para>The mathematical library</para> |
---|
[093b0e8] | 663 | <indexterm zone="ch-system-eglibc libm"> |
---|
[3f8be484] | 664 | <primary sortas="c-libm">libm</primary> |
---|
| 665 | </indexterm> |
---|
| 666 | </listitem> |
---|
| 667 | </varlistentry> |
---|
| 668 | |
---|
| 669 | <varlistentry id="libmcheck"> |
---|
| 670 | <term><filename class="libraryfile">libmcheck</filename></term> |
---|
| 671 | <listitem> |
---|
| 672 | <para>Contains code run at boot</para> |
---|
[093b0e8] | 673 | <indexterm zone="ch-system-eglibc libmcheck"> |
---|
[3f8be484] | 674 | <primary sortas="c-libmcheck">libmcheck</primary> |
---|
| 675 | </indexterm> |
---|
| 676 | </listitem> |
---|
| 677 | </varlistentry> |
---|
| 678 | |
---|
| 679 | <varlistentry id="libmemusage"> |
---|
| 680 | <term><filename class="libraryfile">libmemusage</filename></term> |
---|
| 681 | <listitem> |
---|
[093b0e8] | 682 | <para>Used by <command>memusage</command> (included in EGLIBC, but |
---|
[7087cbc] | 683 | not built in a base CLFS system as it has additional dependencies) |
---|
| 684 | to help collect information about the memory usage of a program</para> |
---|
[093b0e8] | 685 | <indexterm zone="ch-system-eglibc libmemusage"> |
---|
[3f8be484] | 686 | <primary sortas="c-libmemusage">libmemusage</primary> |
---|
| 687 | </indexterm> |
---|
| 688 | </listitem> |
---|
| 689 | </varlistentry> |
---|
| 690 | |
---|
| 691 | <varlistentry id="libnsl"> |
---|
| 692 | <term><filename class="libraryfile">libnsl</filename></term> |
---|
| 693 | <listitem> |
---|
| 694 | <para>The network services library</para> |
---|
[093b0e8] | 695 | <indexterm zone="ch-system-eglibc libnsl"> |
---|
[3f8be484] | 696 | <primary sortas="c-libnsl">libnsl</primary> |
---|
| 697 | </indexterm> |
---|
| 698 | </listitem> |
---|
| 699 | </varlistentry> |
---|
| 700 | |
---|
| 701 | <varlistentry id="libnss"> |
---|
| 702 | <term><filename class="libraryfile">libnss</filename></term> |
---|
| 703 | <listitem> |
---|
| 704 | <para>The Name Service Switch libraries, containing functions for |
---|
| 705 | resolving host names, user names, group names, aliases, services, |
---|
| 706 | protocols, etc.</para> |
---|
[093b0e8] | 707 | <indexterm zone="ch-system-eglibc libnss"> |
---|
[3f8be484] | 708 | <primary sortas="c-libnss">libnss</primary> |
---|
| 709 | </indexterm> |
---|
| 710 | </listitem> |
---|
| 711 | </varlistentry> |
---|
| 712 | |
---|
| 713 | <varlistentry id="libpcprofile"> |
---|
| 714 | <term><filename class="libraryfile">libpcprofile</filename></term> |
---|
| 715 | <listitem> |
---|
| 716 | <para>Contains profiling functions used to track the amount of CPU |
---|
| 717 | time spent in specific source code lines</para> |
---|
[093b0e8] | 718 | <indexterm zone="ch-system-eglibc libpcprofile"> |
---|
[3f8be484] | 719 | <primary sortas="c-libpcprofile">libpcprofile</primary> |
---|
| 720 | </indexterm> |
---|
| 721 | </listitem> |
---|
| 722 | </varlistentry> |
---|
| 723 | |
---|
| 724 | <varlistentry id="libpthread"> |
---|
| 725 | <term><filename class="libraryfile">libpthread</filename></term> |
---|
| 726 | <listitem> |
---|
| 727 | <para>The POSIX threads library</para> |
---|
[093b0e8] | 728 | <indexterm zone="ch-system-eglibc libpthread"> |
---|
[3f8be484] | 729 | <primary sortas="c-libpthread">libpthread</primary> |
---|
| 730 | </indexterm> |
---|
| 731 | </listitem> |
---|
| 732 | </varlistentry> |
---|
| 733 | |
---|
| 734 | <varlistentry id="libresolv"> |
---|
| 735 | <term><filename class="libraryfile">libresolv</filename></term> |
---|
| 736 | <listitem> |
---|
| 737 | <para>Contains functions for creating, sending, and interpreting |
---|
| 738 | packets to the Internet domain name servers</para> |
---|
[093b0e8] | 739 | <indexterm zone="ch-system-eglibc libresolv"> |
---|
[3f8be484] | 740 | <primary sortas="c-libresolv">libresolv</primary> |
---|
| 741 | </indexterm> |
---|
| 742 | </listitem> |
---|
| 743 | </varlistentry> |
---|
| 744 | |
---|
| 745 | <varlistentry id="librpcsvc"> |
---|
| 746 | <term><filename class="libraryfile">librpcsvc</filename></term> |
---|
| 747 | <listitem> |
---|
| 748 | <para>Contains functions providing miscellaneous RPC services</para> |
---|
[093b0e8] | 749 | <indexterm zone="ch-system-eglibc librpcsvc"> |
---|
[3f8be484] | 750 | <primary sortas="c-librpcsvc">librpcsvc</primary> |
---|
| 751 | </indexterm> |
---|
| 752 | </listitem> |
---|
| 753 | </varlistentry> |
---|
| 754 | |
---|
| 755 | <varlistentry id="librt"> |
---|
| 756 | <term><filename class="libraryfile">librt</filename></term> |
---|
| 757 | <listitem> |
---|
| 758 | <para>Contains functions providing most of the interfaces specified by |
---|
| 759 | the POSIX.1b Realtime Extension</para> |
---|
[093b0e8] | 760 | <indexterm zone="ch-system-eglibc librt"> |
---|
[3f8be484] | 761 | <primary sortas="c-librt">librt</primary> |
---|
| 762 | </indexterm> |
---|
| 763 | </listitem> |
---|
| 764 | </varlistentry> |
---|
| 765 | |
---|
| 766 | <varlistentry id="libthread_db"> |
---|
| 767 | <term><filename class="libraryfile">libthread_db</filename></term> |
---|
| 768 | <listitem> |
---|
| 769 | <para>Contains functions useful for |
---|
| 770 | building debuggers for multi-threaded programs</para> |
---|
[093b0e8] | 771 | <indexterm zone="ch-system-eglibc libthread_db"> |
---|
[3f8be484] | 772 | <primary sortas="c-libthread_db">libthread_db</primary> |
---|
| 773 | </indexterm> |
---|
| 774 | </listitem> |
---|
| 775 | </varlistentry> |
---|
| 776 | |
---|
| 777 | <varlistentry id="libutil"> |
---|
| 778 | <term><filename class="libraryfile">libutil</filename></term> |
---|
| 779 | <listitem> |
---|
| 780 | <para>Contains code for <quote>standard</quote> functions used in |
---|
| 781 | many different Unix utilities</para> |
---|
[093b0e8] | 782 | <indexterm zone="ch-system-eglibc libutil"> |
---|
[3f8be484] | 783 | <primary sortas="c-libutil">libutil</primary> |
---|
| 784 | </indexterm> |
---|
| 785 | </listitem> |
---|
| 786 | </varlistentry> |
---|
| 787 | |
---|
| 788 | </variablelist> |
---|
| 789 | |
---|
| 790 | </sect2> |
---|
| 791 | |
---|
| 792 | </sect1> |
---|