1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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5 | %general-entities;
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6 | ]>
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7 |
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8 | <sect1 id="ch-system-glibc" role="wrap">
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9 | <?dbhtml filename="glibc.html"?>
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10 |
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11 | <title>Glibc-&glibc-version;</title>
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12 |
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13 | <indexterm zone="ch-system-glibc">
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14 | <primary sortas="a-Glibc">Glibc</primary>
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15 | </indexterm>
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16 |
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17 | <sect2 role="package">
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18 | <title/>
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19 |
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20 | <para>The Glibc package contains the main C library. This library provides
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21 | the basic routines for allocating memory, searching directories, opening and
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22 | closing files, reading and writing files, string handling, pattern matching,
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23 | arithmetic, and so on.</para>
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24 |
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25 | </sect2>
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26 |
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27 | <sect2 role="installation">
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28 | <title>Installation of Glibc</title>
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29 |
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30 | <note os="z">
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31 | <para>Some packages outside of CLFS suggest installing GNU libiconv in
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32 | order to translate data from one encoding to another. The project's
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33 | home page (<ulink url="http://www.gnu.org/software/libiconv/"/>) says
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34 | <quote>This library provides an <function>iconv()</function>
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35 | implementation, for use on systems which don't have one, or whose
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36 | implementation cannot convert from/to Unicode.</quote> Glibc provides
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37 | an <function>iconv()</function> implementation and can convert from/to
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38 | Unicode, therefore libiconv is not required on a CLFS system.</para>
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39 | </note>
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40 |
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41 | <para os="l1">At the end of the installation, the build system will run
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42 | a sanity test to make sure everything installed properly. This script will
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43 | attempt to test for a library that is only used in the test suite and is
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44 | never installed. Prevent the script from testing for this library with the
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45 | following command:</para>
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46 |
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47 | <screen os="l2"><userinput>sed -i 's/\(&& $name ne\) "db1"/ & \1 "nss_test1"/' scripts/test-installation.pl</userinput></screen>
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48 |
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49 | <para os="l3">This same script performs its tests by attempting to compile
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50 | test programs against certain libraries. However it does not specify the
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51 | path to <filename class="libraryfile">ld.so</filename>, and our toolchain
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52 | is still configured to use the one in
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53 | <filename class="directory">/tools</filename>. The following set of
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54 | commands will force the script to use the complete path of the new
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55 | <filename class="libraryfile">ld.so</filename> that was just installed:</para>
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56 |
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57 | <screen os="l4"><userinput>LINKER=$(readelf -l /tools/bin/bash | sed -n 's@.*interpret.*/tools\(.*\)]$@\1@p')
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58 | sed -i "s|libs -o|libs -L/usr/lib -Wl,-dynamic-linker=${LINKER} -o|" \
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59 | scripts/test-installation.pl
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60 | unset LINKER</userinput></screen>
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61 |
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62 | <para os="b">The Glibc build system is self-contained and will install
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63 | perfectly, even though the compiler specs file and linker are still
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64 | pointing at <filename class="directory">/tools</filename>. The specs
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65 | and linker cannot be adjusted before the Glibc install because the
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66 | Glibc Autoconf tests would give false results and defeat the goal
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67 | of achieving a clean build.</para>
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68 |
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69 | <para os="s1">Apply the following <command>sed</command> so the
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70 | <command>tzselect</command> script works properly:</para>
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71 |
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72 | <screen os="s2"><userinput>sed -i 's/\\$$(pwd)/`pwd`/' timezone/Makefile</userinput></screen>
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73 |
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74 | <para os="e">The Glibc documentation recommends building Glibc outside of the source directory in a dedicated build directory:</para>
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75 |
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76 | <screen os="f"><userinput>mkdir -v ../glibc-build
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77 | cd ../glibc-build</userinput></screen>
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78 |
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79 | <para os="g">Prepare Glibc for compilation:</para>
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80 |
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81 | <screen os="h"><userinput>../glibc-&glibc-version;/configure --prefix=/usr \
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82 | --disable-profile --enable-kernel=&glibc-kernel-version; --libexecdir=/usr/lib/glibc \
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83 | --enable-obsolete-rpc</userinput></screen>
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84 |
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85 | <variablelist os="i">
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86 | <title>The meaning of the new configure option:</title>
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87 |
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88 | <varlistentry>
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89 | <term><parameter>--libexecdir=/usr/lib/glibc</parameter></term>
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90 | <listitem>
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91 | <para>This changes the location for hard links to the
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92 | <command>getconf</command> utility from their default of <filename
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93 | class="directory">/usr/libexec</filename> to <filename
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94 | class="directory">/usr/lib/glibc</filename>.</para>
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95 | </listitem>
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96 | </varlistentry>
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97 | </variablelist>
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98 |
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99 | <para os="j">Compile the package:</para>
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100 |
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101 | <screen os="k"><userinput>make</userinput></screen>
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102 |
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103 | <important os="l">
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104 | <para>Due to Glibc's critical role in a properly functioning system,
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105 | the CLFS developers strongly recommend running the testsuite.</para>
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106 | </important>
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107 |
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108 | <para os="m">Use the following commands to run the test suite and output
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109 | any test failures:</para>
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110 |
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111 | <!-- items n,o,p no longer the master, use x86_64 which has no failures -->
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112 |
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113 | <screen os="n"><userinput remap="test">make -k check 2>&1 | tee glibc-check-log; grep Error glibc-check-log</userinput></screen>
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114 |
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115 | <para os="o">The Glibc test suite is highly dependent on certain functions of
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116 | the host system, in particular the kernel. The <emphasis>posix/annexc</emphasis> and
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117 | <emphasis>conform/run-conformtest</emphasis> tests normally fail
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118 | and you should see <literal>Error 1 (ignored)</literal> in the output. Apart
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119 | from this, the Glibc test suite is always expected to pass. However, in certain
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120 | circumstances, some failures are unavoidable. If a test fails because of a missing
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121 | program (or missing symbolic link), or a segfault, you will see an error code
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122 | greater than 127 and the details will be in the log. More commonly, tests will
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123 | fail with <literal>Error 2</literal> - for these, the contents of the corresponding
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124 | <filename>.out</filename> file, e.g. <filename>posix/annexc.out</filename> may be
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125 | informative. Here is a list of the most common issues:</para>
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126 |
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127 | <itemizedlist os="p">
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128 | <listitem>
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129 | <para>The <emphasis>nptl/tst-clock2</emphasis>,
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130 | <emphasis>nptl/tst-attr3</emphasis>,
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131 | <emphasis>tst/tst-cputimer1</emphasis>, and
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132 | <emphasis>rt/tst-cpuclock2</emphasis>
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133 | tests have been known to fail. The
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134 | reason is not completely understood, but indications are that minor
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135 | timing issues can trigger these failures.</para>
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136 | </listitem>
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137 | <listitem>
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138 | <para>The <emphasis>math</emphasis> tests sometimes fail.
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139 | Certain optimization settings are known to be a
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140 | factor here.</para>
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141 | </listitem>
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142 | <listitem>
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143 | <para>If you have mounted the CLFS partition with the
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144 | <parameter>noatime</parameter> option, the <emphasis>atime</emphasis> test
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145 | will fail. As mentioned in <xref linkend="ch-partitioning-mounting"/>,
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146 | do not use the <parameter>noatime</parameter> option while building
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147 | CLFS.</para>
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148 | </listitem>
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149 | <listitem>
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150 | <para>When running on older and slower hardware, some tests
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151 | can fail because of test timeouts being exceeded.
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152 | Modifying the make check command to set a TIMEOUTFACTOR is reported to
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153 | help eliminate these errors (e.g. <command>TIMEOUTFACTOR=16
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154 | make -k check</command>).</para>
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155 | </listitem>
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156 | <listitem>
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157 | <para>posix/tst-getaddrinfo4 will always fail due to not having a network
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158 | connection when the test is run.</para>
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159 | </listitem>
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160 | </itemizedlist>
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161 |
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162 | <para os="q">Though it is a harmless message, the install stage of Glibc will
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163 | complain about the absence of <filename>/etc/ld.so.conf</filename>.
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164 | Prevent this warning with:</para>
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165 |
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166 | <screen os="r"><userinput>touch /etc/ld.so.conf</userinput></screen>
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167 |
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168 | <para os="s">Install the package, and remove unneeded files from
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169 | <filename class="directory">/usr/include/rpcsvc</filename>:</para>
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170 |
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171 | <screen os="t"><userinput>make install &&
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172 | rm -v /usr/include/rpcsvc/*.x</userinput></screen>
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173 |
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174 | <para os="u">Install the configuration file and runtime directory for
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175 | <command>nscd</command>:</para>
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176 |
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177 | <screen os="v"><userinput>cp -v ../glibc-2.19/nscd/nscd.conf /etc/nscd.conf
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178 | mkdir -pv /var/cache/nscd</userinput></screen>
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179 |
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180 | <para os="w">Install the systemd support files for <command>nscd</command>:</para>
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181 |
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182 | <screen os="x"><userinput>install -v -Dm644 ../glibc-2.19/nscd/nscd.tmpfiles /usr/lib/tmpfiles.d/nscd.conf
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183 | install -v -Dm644 ../glibc-2.19/nscd/nscd.service /lib/systemd/system/nscd.service</userinput></screen>
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184 |
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185 | </sect2>
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186 |
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187 | <sect2 id="i18n-glibc" role="configuration">
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188 | <title>Internationalization</title>
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189 |
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190 | <para>The locales that can make the system respond in a different
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191 | language were not installed by the above command. Install them
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192 | with:</para>
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193 |
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194 | <screen><userinput>make localedata/install-locales</userinput></screen>
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195 |
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196 | <para>To save time, an alternative to running the previous command (which
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197 | generates and installs every locale listed in the
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198 | <filename>glibc-&glibc-version;/localedata/SUPPORTED</filename> file) is
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199 | to install only those locales that are wanted and needed. This can be
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200 | achieved by using the <command>localedef</command> command. Information on
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201 | this command is located in the <filename>INSTALL</filename> file in the
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202 | Glibc source. However, there are a number of locales that are essential in
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203 | order for the tests of future packages to pass, in particular, the
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204 | <emphasis>libstdc++</emphasis> tests from GCC. The following instructions,
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205 | instead of the <parameter>install-locales</parameter> target used above,
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206 | will install the minimum set of locales necessary for the tests to run
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207 | successfully:</para>
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208 |
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209 | <screen role="nodump"><userinput>mkdir -pv /usr/lib/locale
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210 | localedef -i cs_CZ -f UTF-8 cs_CZ.UTF-8
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211 | localedef -i de_DE -f ISO-8859-1 de_DE
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212 | localedef -i de_DE@euro -f ISO-8859-15 de_DE@euro
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213 | localedef -i en_HK -f ISO-8859-1 en_HK
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214 | localedef -i en_PH -f ISO-8859-1 en_PH
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215 | localedef -i en_US -f ISO-8859-1 en_US
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216 | localedef -i es_MX -f ISO-8859-1 es_MX
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217 | localedef -i fa_IR -f UTF-8 fa_IR
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218 | localedef -i fr_FR -f ISO-8859-1 fr_FR
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219 | localedef -i fr_FR@euro -f ISO-8859-15 fr_FR@euro
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220 | localedef -i it_IT -f ISO-8859-1 it_IT
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221 | localedef -i ja_JP -f EUC-JP ja_JP</userinput></screen>
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222 |
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223 | <para>Some locales installed by the <command>make
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224 | localedata/install-locales</command> command above are not properly
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225 | supported by some applications that are in CLFS and CBLFS. Because
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226 | of the various problems that arise due to application programmers making
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227 | assumptions that break in such locales, CLFS should not be used in locales
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228 | that utilize multibyte character sets (including UTF-8) or right-to-left
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229 | writing order. Numerous unofficial and unstable patches are required to
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230 | fix these problems, and it has been decided by the CLFS developers not to
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231 | support such complex locales at this time. This applies to the ja_JP and
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232 | fa_IR locales as well—they have been installed only for GCC and
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233 | Gettext tests to pass, and the <command>watch</command> program (part of
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234 | the Procps-ng package) does not work properly in them. Various attempts to
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235 | circumvent these restrictions are documented in internationalization-related
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236 | hints.</para>
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237 |
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238 | </sect2>
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239 |
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240 | <sect2 id="conf-glibc" role="configuration">
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241 | <title>Configuring Glibc</title>
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242 |
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243 | <indexterm zone="conf-glibc">
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244 | <primary sortas="e-/etc/nsswitch.conf">/etc/nsswitch.conf</primary>
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245 | </indexterm>
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246 |
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247 | <indexterm zone="conf-glibc">
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248 | <primary sortas="e-/etc/localtime">/etc/localtime</primary>
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249 | </indexterm>
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250 |
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251 | <para>The <filename>/etc/nsswitch.conf</filename> file needs to be created
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252 | because, although Glibc provides defaults when this file is missing or
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253 | corrupt, the Glibc defaults do not work well in a networked environment.
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254 | The time zone also needs to be configured.</para>
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255 |
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256 | <para>Create a new file <filename>/etc/nsswitch.conf</filename> by running
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257 | the following:</para>
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258 |
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259 | <screen><userinput>cat > /etc/nsswitch.conf << "EOF"
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260 | <literal># Begin /etc/nsswitch.conf
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261 |
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262 | passwd: files
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263 | group: files
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264 | shadow: files
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265 |
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266 | hosts: files dns
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267 | networks: files
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268 |
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269 | protocols: files
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270 | services: files
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271 | ethers: files
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272 | rpc: files
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273 |
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274 | # End /etc/nsswitch.conf</literal>
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275 | EOF</userinput></screen>
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276 |
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277 | <para>Install timezone data:</para>
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278 | <screen><userinput>tar -xf ../tzdata&tzdata-version;.tar.gz
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279 |
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280 | ZONEINFO=/usr/share/zoneinfo
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281 | mkdir -pv $ZONEINFO/{posix,right}
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282 |
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283 | for tz in etcetera southamerica northamerica europe africa antarctica \
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284 | asia australasia backward pacificnew \
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285 | systemv; do
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286 | zic -L /dev/null -d $ZONEINFO -y "sh yearistype.sh" ${tz}
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287 | zic -L /dev/null -d $ZONEINFO/posix -y "sh yearistype.sh" ${tz}
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288 | zic -L leapseconds -d $ZONEINFO/right -y "sh yearistype.sh" ${tz}
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289 | done
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290 |
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291 | cp -v zone.tab iso3166.tab $ZONEINFO
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292 | zic -d $ZONEINFO -p America/New_York
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293 | unset ZONEINFO</userinput></screen>
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294 |
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295 | <variablelist>
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296 | <title>The meaning of the zic commands:</title>
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297 |
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298 | <varlistentry>
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299 | <term><parameter>zic -L /dev/null ...</parameter></term>
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300 | <listitem>
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301 | <para>This creates posix timezones, without any leap seconds. It is
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302 | conventional to put these in both
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303 | <filename class="directory">zoneinfo</filename> and
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304 | <filename class="directory">zoneinfo/posix</filename>. It is
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305 | necessary to put the POSIX timezones in
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306 | <filename class="directory">zoneinfo</filename>, otherwise various
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307 | test-suites will report errors. On an embedded system, where space is
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308 | tight and you do not intend to ever update the timezones, you could save
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309 | 1.9MB by not using the <filename class="directory">posix</filename>
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310 | directory, but some applications or test-suites might give less good
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311 | results</para>
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312 | </listitem>
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313 | </varlistentry>
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314 | <varlistentry>
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315 | <term><parameter>zic -L leapseconds ...</parameter></term>
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316 | <listitem>
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317 | <para>This creates right timezones, including leap seconds. On an
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318 | embedded system, where space is tight and you do not intend to
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319 | ever update the timezones, or care about the correct time, you could
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320 | save 1.9MB by omitting the <filename class="directory">right</filename>
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321 | directory.</para>
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322 | </listitem>
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323 | </varlistentry>
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324 | <varlistentry>
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325 | <term><parameter>zic ... -p ...</parameter></term>
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326 | <listitem>
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327 | <para>This creates the <filename>posixrules</filename> file. We use
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328 | New York because POSIX requires the daylight savings time rules
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329 | to be in accordance with US rules.</para>
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330 | </listitem>
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331 | </varlistentry>
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332 | </variablelist>
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333 |
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334 | <para>To determine the local time zone, run the following script:</para>
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335 |
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336 | <screen role="nodump"><userinput>tzselect</userinput></screen>
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337 |
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338 | <para>After answering a few questions about the location, the script will
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339 | output the name of the time zone (e.g., <emphasis>EST5EDT</emphasis> or
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340 | <emphasis>Canada/Eastern</emphasis>). Then create the
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341 | <filename>/etc/localtime</filename> file by running:</para>
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342 |
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343 | <screen><userinput>cp -v /usr/share/zoneinfo/<replaceable>[xxx]</replaceable> \
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344 | /etc/localtime</userinput></screen>
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345 |
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346 | <para>Replace <replaceable>[xxx]</replaceable> with the name of the time zone
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347 | that <command>tzselect</command> provided (e.g., Canada/Eastern).</para>
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348 |
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349 | </sect2>
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350 |
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351 | <sect2 id="conf-ld" role="configuration">
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352 | <title>Configuring The Dynamic Loader</title>
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353 |
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354 | <indexterm zone="conf-ld">
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355 | <primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary>
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356 | </indexterm>
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357 |
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358 | <para os="ld-a">By default, the dynamic loader (<filename
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359 | class="libraryfile">/lib/ld-linux.so.2</filename>) searches through
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360 | <filename class="directory">/lib</filename> and <filename
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361 | class="directory">/usr/lib</filename> for dynamic libraries that are
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362 | needed by programs as they are run. However, if there are libraries in
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363 | directories other than <filename class="directory">/lib</filename> and
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364 | <filename class="directory">/usr/lib</filename>, these need to be
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365 | added to the <filename>/etc/ld.so.conf</filename> file in order
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366 | for the dynamic loader to find them. Two directories that are commonly
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367 | known to contain additional libraries are <filename
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368 | class="directory">/usr/local/lib</filename> and <filename
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369 | class="directory">/opt/lib</filename>, so add those directories to the
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370 | dynamic loader's search path.</para>
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371 |
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372 | <para os="ld-b">Create a new file <filename>/etc/ld.so.conf</filename> by running the
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373 | following:</para>
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374 |
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375 | <screen os="ld-c"><userinput>cat > /etc/ld.so.conf << "EOF"
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376 | <literal># Begin /etc/ld.so.conf
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377 |
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378 | /usr/local/lib
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379 | /opt/lib
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380 |
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381 | # End /etc/ld.so.conf</literal>
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382 | EOF</userinput></screen>
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383 |
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384 | </sect2>
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385 |
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386 | <sect2 id="contents-glibc" role="content">
|
---|
387 | <title>Contents of Glibc</title>
|
---|
388 |
|
---|
389 | <segmentedlist>
|
---|
390 | <segtitle>Installed programs</segtitle>
|
---|
391 | <segtitle>Installed libraries</segtitle>
|
---|
392 | <segtitle>Installed directories</segtitle>
|
---|
393 |
|
---|
394 | <seglistitem>
|
---|
395 | <seg>catchsegv, gencat, getconf, getent, iconv, iconvconfig, ldconfig,
|
---|
396 | ldd, lddlibc4, locale, localedef, makedb, mtrace, nscd,
|
---|
397 | pcprofiledump, pldd, rpcgen, sln, sotruss, sprof, tzselect, xtrace,
|
---|
398 | zdump, zic</seg>
|
---|
399 | <seg>ld.so, libBrokenLocale.[a,so], libSegFault.so, libanl.[a,so],
|
---|
400 | libc.[a,so], libc_nonshared.a, libcidn.[a,so], libcrypt.[a,so],
|
---|
401 | libdl.[a,so], libg.a, libieee.a, libm.[a,so], libmcheck.a,
|
---|
402 | libmemusage.so, libnsl.a, libnss_compat.so, libnss_dns.so,
|
---|
403 | libnss_files.so, libnss_hesiod.so, libnss_nis.so, libnss_nisplus.so,
|
---|
404 | libpcprofile.so, libpthread.[a,so], libpthread_nonshared.a,
|
---|
405 | libresolv.[a,so], librpcsvc.a, librt.[a,so], libthread_db.so,
|
---|
406 | libutil.[a,so]</seg>
|
---|
407 | <seg>/usr/include/arpa, /usr/include/bits, /usr/include/gnu,
|
---|
408 | /usr/include/net, /usr/include/netash, /usr/include/netatalk,
|
---|
409 | /usr/include/netax25, /usr/include/neteconet, /usr/include/netinet,
|
---|
410 | /usr/include/netipx, /usr/include/netiucv, /usr/include/netpacket,
|
---|
411 | /usr/include/netrom, /usr/include/netrose, /usr/include/nfs,
|
---|
412 | /usr/include/protocols, /usr/include/rpc, /usr/include/rpcsvc,
|
---|
413 | /usr/include/sys, /usr/lib/audit, /usr/lib/gconv, /usr/lib/glibc, /usr/lib/locale,
|
---|
414 | /usr/share/i18n, /usr/share/zoneinfo, /var/cache/ldconfig,
|
---|
415 | /var/cache/nscd</seg>
|
---|
416 | </seglistitem>
|
---|
417 | </segmentedlist>
|
---|
418 |
|
---|
419 | <variablelist>
|
---|
420 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
---|
421 | <?dbfo list-presentation="list"?>
|
---|
422 | <?dbhtml list-presentation="table"?>
|
---|
423 |
|
---|
424 | <varlistentry id="catchsegv">
|
---|
425 | <term><command>catchsegv</command></term>
|
---|
426 | <listitem>
|
---|
427 | <para>Can be used to create a stack trace when a program
|
---|
428 | terminates with a segmentation fault</para>
|
---|
429 | <indexterm zone="ch-system-glibc catchsegv">
|
---|
430 | <primary sortas="b-catchsegv">catchsegv</primary>
|
---|
431 | </indexterm>
|
---|
432 | </listitem>
|
---|
433 | </varlistentry>
|
---|
434 |
|
---|
435 | <varlistentry id="gencat">
|
---|
436 | <term><command>gencat</command></term>
|
---|
437 | <listitem>
|
---|
438 | <para>Generates message catalogues</para>
|
---|
439 | <indexterm zone="ch-system-glibc gencat">
|
---|
440 | <primary sortas="b-gencat">gencat</primary>
|
---|
441 | </indexterm>
|
---|
442 | </listitem>
|
---|
443 | </varlistentry>
|
---|
444 |
|
---|
445 | <varlistentry id="getconf">
|
---|
446 | <term><command>getconf</command></term>
|
---|
447 | <listitem>
|
---|
448 | <para>Displays the system configuration values for file system specific
|
---|
449 | variables</para>
|
---|
450 | <indexterm zone="ch-system-glibc getconf">
|
---|
451 | <primary sortas="b-getconf">getconf</primary>
|
---|
452 | </indexterm>
|
---|
453 | </listitem>
|
---|
454 | </varlistentry>
|
---|
455 |
|
---|
456 | <varlistentry id="getent">
|
---|
457 | <term><command>getent</command></term>
|
---|
458 | <listitem>
|
---|
459 | <para>Gets entries from an administrative database</para>
|
---|
460 | <indexterm zone="ch-system-glibc getent">
|
---|
461 | <primary sortas="b-getent">getent</primary>
|
---|
462 | </indexterm>
|
---|
463 | </listitem>
|
---|
464 | </varlistentry>
|
---|
465 |
|
---|
466 | <varlistentry id="iconv">
|
---|
467 | <term><command>iconv</command></term>
|
---|
468 | <listitem>
|
---|
469 | <para>Performs character set conversion</para>
|
---|
470 | <indexterm zone="ch-system-glibc iconv">
|
---|
471 | <primary sortas="b-iconv">iconv</primary>
|
---|
472 | </indexterm>
|
---|
473 | </listitem>
|
---|
474 | </varlistentry>
|
---|
475 |
|
---|
476 | <varlistentry id="iconvconfig">
|
---|
477 | <term><command>iconvconfig</command></term>
|
---|
478 | <listitem>
|
---|
479 | <para>Creates fastloading <command>iconv</command> module configuration
|
---|
480 | files</para>
|
---|
481 | <indexterm zone="ch-system-glibc iconvconfig">
|
---|
482 | <primary sortas="b-iconvconfig">iconvconfig</primary>
|
---|
483 | </indexterm>
|
---|
484 | </listitem>
|
---|
485 | </varlistentry>
|
---|
486 |
|
---|
487 | <varlistentry id="ldconfig">
|
---|
488 | <term><command>ldconfig</command></term>
|
---|
489 | <listitem>
|
---|
490 | <para>Configures the dynamic linker runtime bindings</para>
|
---|
491 | <indexterm zone="ch-system-glibc ldconfig">
|
---|
492 | <primary sortas="b-ldconfig">ldconfig</primary>
|
---|
493 | </indexterm>
|
---|
494 | </listitem>
|
---|
495 | </varlistentry>
|
---|
496 |
|
---|
497 | <varlistentry id="ldd">
|
---|
498 | <term><command>ldd</command></term>
|
---|
499 | <listitem>
|
---|
500 | <para>Reports which shared libraries are required
|
---|
501 | by each given program or shared library</para>
|
---|
502 | <indexterm zone="ch-system-glibc ldd">
|
---|
503 | <primary sortas="b-ldd">ldd</primary>
|
---|
504 | </indexterm>
|
---|
505 | </listitem>
|
---|
506 | </varlistentry>
|
---|
507 |
|
---|
508 | <varlistentry id="lddlibc4">
|
---|
509 | <term><command>lddlibc4</command></term>
|
---|
510 | <listitem>
|
---|
511 | <para>Assists <command>ldd</command> with object files</para>
|
---|
512 | <indexterm zone="ch-system-glibc lddlibc4">
|
---|
513 | <primary sortas="b-lddlibc4">lddlibc4</primary>
|
---|
514 | </indexterm>
|
---|
515 | </listitem>
|
---|
516 | </varlistentry>
|
---|
517 |
|
---|
518 | <varlistentry id="locale">
|
---|
519 | <term><command>locale</command></term>
|
---|
520 | <listitem>
|
---|
521 | <para>Tells the compiler to enable or disable the use of POSIX locales
|
---|
522 | for built-in operations</para>
|
---|
523 | <indexterm zone="ch-system-glibc locale">
|
---|
524 | <primary sortas="b-locale">locale</primary>
|
---|
525 | </indexterm>
|
---|
526 | </listitem>
|
---|
527 | </varlistentry>
|
---|
528 |
|
---|
529 | <varlistentry id="localedef">
|
---|
530 | <term><command>localedef</command></term>
|
---|
531 | <listitem>
|
---|
532 | <para>Compiles locale specifications</para>
|
---|
533 | <indexterm zone="ch-system-glibc localedef">
|
---|
534 | <primary sortas="b-localedef">localedef</primary>
|
---|
535 | </indexterm>
|
---|
536 | </listitem>
|
---|
537 | </varlistentry>
|
---|
538 |
|
---|
539 | <varlistentry id="makedb">
|
---|
540 | <term><command>makedb</command></term>
|
---|
541 | <listitem>
|
---|
542 | <para>Creates a simple database from textual input</para>
|
---|
543 | <indexterm zone="ch-system-glibc makedb">
|
---|
544 | <primary sortas="b-makedb">makedb</primary>
|
---|
545 | </indexterm>
|
---|
546 | </listitem>
|
---|
547 | </varlistentry>
|
---|
548 |
|
---|
549 | <varlistentry id="mtrace">
|
---|
550 | <term><command>mtrace</command></term>
|
---|
551 | <listitem>
|
---|
552 | <para>Reads and interprets a memory trace file and
|
---|
553 | displays a summary in human-readable format</para>
|
---|
554 | <indexterm zone="ch-system-glibc mtrace">
|
---|
555 | <primary sortas="b-mtrace">mtrace</primary>
|
---|
556 | </indexterm>
|
---|
557 | </listitem>
|
---|
558 | </varlistentry>
|
---|
559 |
|
---|
560 | <varlistentry id="nscd">
|
---|
561 | <term><command>nscd</command></term>
|
---|
562 | <listitem>
|
---|
563 | <para>A daemon that provides a cache for the most common name
|
---|
564 | service requests</para>
|
---|
565 | <indexterm zone="ch-system-glibc nscd">
|
---|
566 | <primary sortas="b-nscd">nscd</primary>
|
---|
567 | </indexterm>
|
---|
568 | </listitem>
|
---|
569 | </varlistentry>
|
---|
570 |
|
---|
571 | <varlistentry id="pcprofiledump">
|
---|
572 | <term><command>pcprofiledump</command></term>
|
---|
573 | <listitem>
|
---|
574 | <para>Dumps information generated by PC profiling</para>
|
---|
575 | <indexterm zone="ch-system-glibc pcprofiledump">
|
---|
576 | <primary sortas="b-pcprofiledump">pcprofiledump</primary>
|
---|
577 | </indexterm>
|
---|
578 | </listitem>
|
---|
579 | </varlistentry>
|
---|
580 |
|
---|
581 | <varlistentry id="pldd">
|
---|
582 | <term><command>pldd</command></term>
|
---|
583 | <listitem>
|
---|
584 | <para>Lists dynamic shared objects used by running processes</para>
|
---|
585 | <indexterm zone="ch-system-glibc pldd">
|
---|
586 | <primary sortas="b-pldd">pldd</primary>
|
---|
587 | </indexterm>
|
---|
588 | </listitem>
|
---|
589 | </varlistentry>
|
---|
590 |
|
---|
591 | <varlistentry id="rpcgen">
|
---|
592 | <term><command>rpcgen</command></term>
|
---|
593 | <listitem>
|
---|
594 | <para>Generates C code to implement the Remote Procecure Call (RPC)
|
---|
595 | protocol</para>
|
---|
596 | <indexterm zone="ch-system-glibc rpcgen">
|
---|
597 | <primary sortas="b-rpcgen">rpcgen</primary>
|
---|
598 | </indexterm>
|
---|
599 | </listitem>
|
---|
600 | </varlistentry>
|
---|
601 |
|
---|
602 | <varlistentry id="sln">
|
---|
603 | <term><command>sln</command></term>
|
---|
604 | <listitem>
|
---|
605 | <para>A statically linked program that creates symbolic links</para>
|
---|
606 | <indexterm zone="ch-system-glibc sln">
|
---|
607 | <primary sortas="b-sln">sln</primary>
|
---|
608 | </indexterm>
|
---|
609 | </listitem>
|
---|
610 | </varlistentry>
|
---|
611 |
|
---|
612 | <varlistentry id="sotruss">
|
---|
613 | <term><command>sotruss</command></term>
|
---|
614 | <listitem>
|
---|
615 | <para>Traces shared library procedure calls of a specified command</para>
|
---|
616 | <indexterm zone="ch-system-glibc sotruss">
|
---|
617 | <primary sortas="b-sotruss">sotruss</primary>
|
---|
618 | </indexterm>
|
---|
619 | </listitem>
|
---|
620 | </varlistentry>
|
---|
621 |
|
---|
622 | <varlistentry id="sprof">
|
---|
623 | <term><command>sprof</command></term>
|
---|
624 | <listitem>
|
---|
625 | <para>Reads and displays shared object profiling data</para>
|
---|
626 | <indexterm zone="ch-system-glibc sprof">
|
---|
627 | <primary sortas="b-sprof">sprof</primary>
|
---|
628 | </indexterm>
|
---|
629 | </listitem>
|
---|
630 | </varlistentry>
|
---|
631 |
|
---|
632 | <varlistentry id="tzselect">
|
---|
633 | <term><command>tzselect</command></term>
|
---|
634 | <listitem>
|
---|
635 | <para>Asks the user about the location of the
|
---|
636 | system and reports the corresponding time zone description</para>
|
---|
637 | <indexterm zone="ch-system-glibc tzselect">
|
---|
638 | <primary sortas="b-tzselect">tzselect</primary>
|
---|
639 | </indexterm>
|
---|
640 | </listitem>
|
---|
641 | </varlistentry>
|
---|
642 |
|
---|
643 | <varlistentry id="xtrace">
|
---|
644 | <term><command>xtrace</command></term>
|
---|
645 | <listitem>
|
---|
646 | <para>Traces the execution of a program by
|
---|
647 | printing the currently executed function</para>
|
---|
648 | <indexterm zone="ch-system-glibc xtrace">
|
---|
649 | <primary sortas="b-xtrace">xtrace</primary>
|
---|
650 | </indexterm>
|
---|
651 | </listitem>
|
---|
652 | </varlistentry>
|
---|
653 |
|
---|
654 | <varlistentry id="zdump">
|
---|
655 | <term><command>zdump</command></term>
|
---|
656 | <listitem>
|
---|
657 | <para>The time zone dumper</para>
|
---|
658 | <indexterm zone="ch-system-glibc zdump">
|
---|
659 | <primary sortas="b-zdump">zdump</primary>
|
---|
660 | </indexterm>
|
---|
661 | </listitem>
|
---|
662 | </varlistentry>
|
---|
663 |
|
---|
664 | <varlistentry id="zic">
|
---|
665 | <term><command>zic</command></term>
|
---|
666 | <listitem>
|
---|
667 | <para>The time zone compiler</para>
|
---|
668 | <indexterm zone="ch-system-glibc zic">
|
---|
669 | <primary sortas="b-zic">zic</primary>
|
---|
670 | </indexterm>
|
---|
671 | </listitem>
|
---|
672 | </varlistentry>
|
---|
673 |
|
---|
674 | <varlistentry id="ld.so">
|
---|
675 | <term><filename class="libraryfile">ld.so</filename></term>
|
---|
676 | <listitem>
|
---|
677 | <para>The helper program for shared library executables</para>
|
---|
678 | <indexterm zone="ch-system-glibc ld.so">
|
---|
679 | <primary sortas="c-ld.so">ld.so</primary>
|
---|
680 | </indexterm>
|
---|
681 | </listitem>
|
---|
682 | </varlistentry>
|
---|
683 |
|
---|
684 | <varlistentry id="libBrokenLocale">
|
---|
685 | <term><filename class="libraryfile">libBrokenLocale</filename></term>
|
---|
686 | <listitem>
|
---|
687 | <para>Used by programs, such as Mozilla, to solve broken locales</para>
|
---|
688 | <indexterm zone="ch-system-glibc libBrokenLocale">
|
---|
689 | <primary sortas="c-libBrokenLocale">libBrokenLocale</primary>
|
---|
690 | </indexterm>
|
---|
691 | </listitem>
|
---|
692 | </varlistentry>
|
---|
693 |
|
---|
694 | <varlistentry id="libSegFault">
|
---|
695 | <term><filename class="libraryfile">libSegFault</filename></term>
|
---|
696 | <listitem>
|
---|
697 | <para>The segmentation fault signal handler</para>
|
---|
698 | <indexterm zone="ch-system-glibc libSegFault">
|
---|
699 | <primary sortas="c-libSegFault">libSegFault</primary>
|
---|
700 | </indexterm>
|
---|
701 | </listitem>
|
---|
702 | </varlistentry>
|
---|
703 |
|
---|
704 | <varlistentry id="libanl">
|
---|
705 | <term><filename class="libraryfile">libanl</filename></term>
|
---|
706 | <listitem>
|
---|
707 | <para>An asynchronous name lookup library</para>
|
---|
708 | <indexterm zone="ch-system-glibc libanl">
|
---|
709 | <primary sortas="c-libanl">libanl</primary>
|
---|
710 | </indexterm>
|
---|
711 | </listitem>
|
---|
712 | </varlistentry>
|
---|
713 |
|
---|
714 | <varlistentry id="libc">
|
---|
715 | <term><filename class="libraryfile">libc</filename></term>
|
---|
716 | <listitem>
|
---|
717 | <para>The main C library</para>
|
---|
718 | <indexterm zone="ch-system-glibc libc">
|
---|
719 | <primary sortas="c-libc">libc</primary>
|
---|
720 | </indexterm>
|
---|
721 | </listitem>
|
---|
722 | </varlistentry>
|
---|
723 |
|
---|
724 | <varlistentry id="libcidn">
|
---|
725 | <term><filename class="libraryfile">libcidn</filename></term>
|
---|
726 | <listitem>
|
---|
727 | <para>Used internally by Glibc for handling internationalized domain
|
---|
728 | names in the <function>getaddrinfo()</function> function</para>
|
---|
729 | <indexterm zone="ch-system-glibc libcidn">
|
---|
730 | <primary sortas="c-libcidn">libcidn</primary>
|
---|
731 | </indexterm>
|
---|
732 | </listitem>
|
---|
733 | </varlistentry>
|
---|
734 |
|
---|
735 | <varlistentry id="libcrypt">
|
---|
736 | <term><filename class="libraryfile">libcrypt</filename></term>
|
---|
737 | <listitem>
|
---|
738 | <para>The cryptography library</para>
|
---|
739 | <indexterm zone="ch-system-glibc libcrypt">
|
---|
740 | <primary sortas="c-libcrypt">libcrypt</primary>
|
---|
741 | </indexterm>
|
---|
742 | </listitem>
|
---|
743 | </varlistentry>
|
---|
744 |
|
---|
745 | <varlistentry id="libdl">
|
---|
746 | <term><filename class="libraryfile">libdl</filename></term>
|
---|
747 | <listitem>
|
---|
748 | <para>The dynamic linking interface library</para>
|
---|
749 | <indexterm zone="ch-system-glibc libdl">
|
---|
750 | <primary sortas="c-libdl">libdl</primary>
|
---|
751 | </indexterm>
|
---|
752 | </listitem>
|
---|
753 | </varlistentry>
|
---|
754 |
|
---|
755 | <varlistentry id="libg">
|
---|
756 | <term><filename class="libraryfile">libg</filename></term>
|
---|
757 | <listitem>
|
---|
758 | <para>A runtime library for <command>g++</command></para>
|
---|
759 | <indexterm zone="ch-system-glibc libg">
|
---|
760 | <primary sortas="c-libg">libg</primary>
|
---|
761 | </indexterm>
|
---|
762 | </listitem>
|
---|
763 | </varlistentry>
|
---|
764 |
|
---|
765 | <varlistentry id="libieee">
|
---|
766 | <term><filename class="libraryfile">libieee</filename></term>
|
---|
767 | <listitem>
|
---|
768 | <para>The Institute of Electrical and Electronic Engineers (IEEE)
|
---|
769 | floating point library</para>
|
---|
770 | <indexterm zone="ch-system-glibc libieee">
|
---|
771 | <primary sortas="c-libieee">libieee</primary>
|
---|
772 | </indexterm>
|
---|
773 | </listitem>
|
---|
774 | </varlistentry>
|
---|
775 |
|
---|
776 | <varlistentry id="libm">
|
---|
777 | <term><filename class="libraryfile">libm</filename></term>
|
---|
778 | <listitem>
|
---|
779 | <para>The mathematical library</para>
|
---|
780 | <indexterm zone="ch-system-glibc libm">
|
---|
781 | <primary sortas="c-libm">libm</primary>
|
---|
782 | </indexterm>
|
---|
783 | </listitem>
|
---|
784 | </varlistentry>
|
---|
785 |
|
---|
786 | <varlistentry id="libmcheck">
|
---|
787 | <term><filename class="libraryfile">libmcheck</filename></term>
|
---|
788 | <listitem>
|
---|
789 | <para>Contains code run at boot</para>
|
---|
790 | <indexterm zone="ch-system-glibc libmcheck">
|
---|
791 | <primary sortas="c-libmcheck">libmcheck</primary>
|
---|
792 | </indexterm>
|
---|
793 | </listitem>
|
---|
794 | </varlistentry>
|
---|
795 |
|
---|
796 | <varlistentry id="libmemusage">
|
---|
797 | <term><filename class="libraryfile">libmemusage</filename></term>
|
---|
798 | <listitem>
|
---|
799 | <para>Used by <command>memusage</command> (included in Glibc, but
|
---|
800 | not built in a base CLFS system as it has additional dependencies)
|
---|
801 | to help collect information about the memory usage of a program</para>
|
---|
802 | <indexterm zone="ch-system-glibc libmemusage">
|
---|
803 | <primary sortas="c-libmemusage">libmemusage</primary>
|
---|
804 | </indexterm>
|
---|
805 | </listitem>
|
---|
806 | </varlistentry>
|
---|
807 |
|
---|
808 | <varlistentry id="libnsl">
|
---|
809 | <term><filename class="libraryfile">libnsl</filename></term>
|
---|
810 | <listitem>
|
---|
811 | <para>The network services library</para>
|
---|
812 | <indexterm zone="ch-system-glibc libnsl">
|
---|
813 | <primary sortas="c-libnsl">libnsl</primary>
|
---|
814 | </indexterm>
|
---|
815 | </listitem>
|
---|
816 | </varlistentry>
|
---|
817 |
|
---|
818 | <varlistentry id="libnss">
|
---|
819 | <term><filename class="libraryfile">libnss</filename></term>
|
---|
820 | <listitem>
|
---|
821 | <para>The Name Service Switch libraries, containing functions for
|
---|
822 | resolving host names, user names, group names, aliases, services,
|
---|
823 | protocols, etc.</para>
|
---|
824 | <indexterm zone="ch-system-glibc libnss">
|
---|
825 | <primary sortas="c-libnss">libnss</primary>
|
---|
826 | </indexterm>
|
---|
827 | </listitem>
|
---|
828 | </varlistentry>
|
---|
829 |
|
---|
830 | <varlistentry id="libpcprofile">
|
---|
831 | <term><filename class="libraryfile">libpcprofile</filename></term>
|
---|
832 | <listitem>
|
---|
833 | <para>Contains profiling functions used to track the amount of CPU
|
---|
834 | time spent in specific source code lines</para>
|
---|
835 | <indexterm zone="ch-system-glibc libpcprofile">
|
---|
836 | <primary sortas="c-libpcprofile">libpcprofile</primary>
|
---|
837 | </indexterm>
|
---|
838 | </listitem>
|
---|
839 | </varlistentry>
|
---|
840 |
|
---|
841 | <varlistentry id="libpthread">
|
---|
842 | <term><filename class="libraryfile">libpthread</filename></term>
|
---|
843 | <listitem>
|
---|
844 | <para>The POSIX threads library</para>
|
---|
845 | <indexterm zone="ch-system-glibc libpthread">
|
---|
846 | <primary sortas="c-libpthread">libpthread</primary>
|
---|
847 | </indexterm>
|
---|
848 | </listitem>
|
---|
849 | </varlistentry>
|
---|
850 |
|
---|
851 | <varlistentry id="libresolv">
|
---|
852 | <term><filename class="libraryfile">libresolv</filename></term>
|
---|
853 | <listitem>
|
---|
854 | <para>Contains functions for creating, sending, and interpreting
|
---|
855 | packets to the Internet domain name servers</para>
|
---|
856 | <indexterm zone="ch-system-glibc libresolv">
|
---|
857 | <primary sortas="c-libresolv">libresolv</primary>
|
---|
858 | </indexterm>
|
---|
859 | </listitem>
|
---|
860 | </varlistentry>
|
---|
861 |
|
---|
862 | <varlistentry id="librpcsvc">
|
---|
863 | <term><filename class="libraryfile">librpcsvc</filename></term>
|
---|
864 | <listitem>
|
---|
865 | <para>Contains functions providing miscellaneous RPC services</para>
|
---|
866 | <indexterm zone="ch-system-glibc librpcsvc">
|
---|
867 | <primary sortas="c-librpcsvc">librpcsvc</primary>
|
---|
868 | </indexterm>
|
---|
869 | </listitem>
|
---|
870 | </varlistentry>
|
---|
871 |
|
---|
872 | <varlistentry id="librt">
|
---|
873 | <term><filename class="libraryfile">librt</filename></term>
|
---|
874 | <listitem>
|
---|
875 | <para>Contains functions providing most of the interfaces specified by
|
---|
876 | the POSIX.1b Realtime Extension</para>
|
---|
877 | <indexterm zone="ch-system-glibc librt">
|
---|
878 | <primary sortas="c-librt">librt</primary>
|
---|
879 | </indexterm>
|
---|
880 | </listitem>
|
---|
881 | </varlistentry>
|
---|
882 |
|
---|
883 | <varlistentry id="libthread_db">
|
---|
884 | <term><filename class="libraryfile">libthread_db</filename></term>
|
---|
885 | <listitem>
|
---|
886 | <para>Contains functions useful for
|
---|
887 | building debuggers for multi-threaded programs</para>
|
---|
888 | <indexterm zone="ch-system-glibc libthread_db">
|
---|
889 | <primary sortas="c-libthread_db">libthread_db</primary>
|
---|
890 | </indexterm>
|
---|
891 | </listitem>
|
---|
892 | </varlistentry>
|
---|
893 |
|
---|
894 | <varlistentry id="libutil">
|
---|
895 | <term><filename class="libraryfile">libutil</filename></term>
|
---|
896 | <listitem>
|
---|
897 | <para>Contains code for <quote>standard</quote> functions used in
|
---|
898 | many different Unix utilities</para>
|
---|
899 | <indexterm zone="ch-system-glibc libutil">
|
---|
900 | <primary sortas="c-libutil">libutil</primary>
|
---|
901 | </indexterm>
|
---|
902 | </listitem>
|
---|
903 | </varlistentry>
|
---|
904 |
|
---|
905 | </variablelist>
|
---|
906 |
|
---|
907 | </sect2>
|
---|
908 |
|
---|
909 | </sect1>
|
---|