[3f8be484] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?> |
---|
[aa18ac0] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" |
---|
| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ |
---|
[3f8be484] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent"> |
---|
| 5 | %general-entities; |
---|
| 6 | ]> |
---|
| 7 | |
---|
[cbbd1e4] | 8 | <sect1 id="ch-system-glibc" role="wrap"> |
---|
| 9 | <?dbhtml filename="glibc.html"?> |
---|
[3f8be484] | 10 | |
---|
[d785e9d] | 11 | <title>Glibc-&glibc-version;</title> |
---|
[3f8be484] | 12 | |
---|
[cbbd1e4] | 13 | <indexterm zone="ch-system-glibc"> |
---|
[d785e9d] | 14 | <primary sortas="a-Glibc">Glibc</primary> |
---|
[3f8be484] | 15 | </indexterm> |
---|
| 16 | |
---|
| 17 | <sect2 role="package"> |
---|
| 18 | <title/> |
---|
| 19 | |
---|
[d785e9d] | 20 | <para>The Glibc package contains the main C library. This library provides |
---|
[3f8be484] | 21 | the basic routines for allocating memory, searching directories, opening and |
---|
| 22 | closing files, reading and writing files, string handling, pattern matching, |
---|
| 23 | arithmetic, and so on.</para> |
---|
| 24 | |
---|
| 25 | </sect2> |
---|
| 26 | |
---|
| 27 | <sect2 role="installation"> |
---|
[d785e9d] | 28 | <title>Installation of Glibc</title> |
---|
[3f8be484] | 29 | |
---|
| 30 | <note os="z"> |
---|
[a1fb12f] | 31 | <para>Some packages outside of CLFS suggest installing GNU libiconv in |
---|
[3f8be484] | 32 | order to translate data from one encoding to another. The project's |
---|
| 33 | home page (<ulink url="http://www.gnu.org/software/libiconv/"/>) says |
---|
| 34 | <quote>This library provides an <function>iconv()</function> |
---|
| 35 | implementation, for use on systems which don't have one, or whose |
---|
[d785e9d] | 36 | implementation cannot convert from/to Unicode.</quote> Glibc provides |
---|
[3f8be484] | 37 | an <function>iconv()</function> implementation and can convert from/to |
---|
[a1fb12f] | 38 | Unicode, therefore libiconv is not required on a CLFS system.</para> |
---|
[3f8be484] | 39 | </note> |
---|
| 40 | |
---|
[22cd957] | 41 | <para os="l1">At the end of the installation, the build system will run |
---|
| 42 | a sanity test to make sure everything installed properly. This script will |
---|
| 43 | attempt to test for a library that is only used in the test suite and is |
---|
| 44 | never installed. Prevent the script from testing for this library with the |
---|
| 45 | following command:</para> |
---|
[d8f87e8] | 46 | |
---|
[22cd957] | 47 | <screen os="l2"><userinput>sed -i 's/\(&& $name ne\) "db1"/ & \1 "nss_test1"/' scripts/test-installation.pl</userinput></screen> |
---|
| 48 | |
---|
| 49 | <para os="l3">This same script performs its tests by attempting to compile |
---|
| 50 | test programs against certain libraries. However it does not specify the |
---|
| 51 | ld.so, and our toolchain is still configured to use the one in /tools. The |
---|
| 52 | following set of commands will force the script to use the complete path |
---|
| 53 | of the new ld.so that was just installed:</para> |
---|
| 54 | |
---|
| 55 | <screen os="l4"><userinput>LINKER=$(readelf -l /tools/bin/bash | sed -n 's@.*interpret.*/tools\(.*\)]$@\1@p') |
---|
[d8f87e8] | 56 | sed -i "s|libs -o|libs -L/usr/lib -Wl,-dynamic-linker=${LINKER} -o|" \ |
---|
| 57 | scripts/test-installation.pl |
---|
| 58 | unset LINKER</userinput></screen> |
---|
| 59 | |
---|
[d785e9d] | 60 | <para os="b">The Glibc build system is self-contained and will install |
---|
[3f8be484] | 61 | perfectly, even though the compiler specs file and linker are still |
---|
| 62 | pointing at <filename class="directory">/tools</filename>. The specs |
---|
[d785e9d] | 63 | and linker cannot be adjusted before the Glibc install because the |
---|
| 64 | Glibc Autoconf tests would give false results and defeat the goal |
---|
[3f8be484] | 65 | of achieving a clean build.</para> |
---|
| 66 | |
---|
[bfd8749] | 67 | <para os="s1">Apply the following sed so the <command>tzselect</command> script works properly:</para> |
---|
[00a58649] | 68 | |
---|
[bfd8749] | 69 | <screen os="s2"><userinput>sed -i 's/\\$$(pwd)/`pwd`/' timezone/Makefile</userinput></screen> |
---|
[00a58649] | 70 | |
---|
[d785e9d] | 71 | <para os="e">The Glibc documentation recommends building Glibc outside of the source directory in a dedicated build directory:</para> |
---|
[3f8be484] | 72 | |
---|
[cbbd1e4] | 73 | <screen os="f"><userinput>mkdir -v ../glibc-build |
---|
| 74 | cd ../glibc-build</userinput></screen> |
---|
[3f8be484] | 75 | |
---|
[d785e9d] | 76 | <para os="g">Prepare Glibc for compilation:</para> |
---|
[3f8be484] | 77 | |
---|
[cbbd1e4] | 78 | <screen os="h"><userinput>../glibc-&glibc-version;/configure --prefix=/usr \ |
---|
[11e2d29] | 79 | --disable-profile --enable-kernel=&glibc-kernel-version; --libexecdir=/usr/lib/glibc \ |
---|
[52ed4da] | 80 | --enable-obsolete-rpc</userinput></screen> |
---|
[3f8be484] | 81 | |
---|
| 82 | <variablelist os="i"> |
---|
| 83 | <title>The meaning of the new configure option:</title> |
---|
| 84 | |
---|
| 85 | <varlistentry> |
---|
[cbbd1e4] | 86 | <term><parameter>--libexecdir=/usr/lib/glibc</parameter></term> |
---|
[3f8be484] | 87 | <listitem> |
---|
[b5bd3744] | 88 | <para>This changes the location of the <command>getconf</command> |
---|
| 89 | utility from its default of <filename |
---|
[3f8be484] | 90 | class="directory">/usr/libexec</filename> to <filename |
---|
[cbbd1e4] | 91 | class="directory">/usr/lib/glibc</filename>.</para> |
---|
[3f8be484] | 92 | </listitem> |
---|
| 93 | </varlistentry> |
---|
| 94 | </variablelist> |
---|
| 95 | |
---|
| 96 | <para os="j">Compile the package:</para> |
---|
| 97 | |
---|
| 98 | <screen os="k"><userinput>make</userinput></screen> |
---|
| 99 | |
---|
| 100 | <important os="l"> |
---|
[d785e9d] | 101 | <para>The test suite for Glibc is considered critical. |
---|
[3f8be484] | 102 | Do not skip it under any circumstance.</para> |
---|
| 103 | </important> |
---|
| 104 | |
---|
[1b48cb6] | 105 | <para os="m">Use the following commands to run the test suite and output |
---|
[37957f4] | 106 | any test failures:</para> |
---|
[3f8be484] | 107 | |
---|
| 108 | <!-- items n,o,p no longer the master, use x86_64 which has no failures --> |
---|
| 109 | |
---|
[37957f4] | 110 | <screen os="n"><userinput remap="test">make -k check 2>&1 | tee glibc-check-log; grep Error glibc-check-log</userinput></screen> |
---|
[3f8be484] | 111 | |
---|
[d785e9d] | 112 | <para os="o">The Glibc test suite is highly dependent on certain functions of |
---|
[767a2a5] | 113 | the host system, in particular the kernel. The <emphasis>posix/annexc</emphasis> and |
---|
| 114 | <emphasis>conform/run-conformtest</emphasis> tests normally fail |
---|
[10b2850] | 115 | and you should see <literal>Error 1 (ignored)</literal> in the output. Apart |
---|
[d785e9d] | 116 | from this, the Glibc test suite is always expected to pass. However, in certain |
---|
[10b2850] | 117 | circumstances, some failures are unavoidable. If a test fails because of a missing |
---|
| 118 | program (or missing symbolic link), or a segfault, you will see an error code |
---|
| 119 | greater than 127 and the details will be in the log. More commonly, tests will |
---|
| 120 | fail with <literal>Error 2</literal> - for these, the contents of the corresponding |
---|
| 121 | <filename>.out</filename> file, e.g. <filename>posix/annexc.out</filename> may be |
---|
| 122 | informative. Here is a list of the most common issues:</para> |
---|
[3f8be484] | 123 | |
---|
| 124 | <itemizedlist os="p"> |
---|
[767a2a5] | 125 | <listitem> |
---|
| 126 | <para>The <emphasis>nptl/tst-clock2</emphasis>, |
---|
| 127 | <emphasis>nptl/tst-attr3</emphasis>, |
---|
| 128 | <emphasis>tst/tst-cputimer1</emphasis>, and |
---|
| 129 | <emphasis>rt/tst-cpuclock2</emphasis> |
---|
| 130 | tests have been known to fail. The |
---|
| 131 | reason is not completely understood, but indications are that minor |
---|
| 132 | timing issues can trigger these failures.</para> |
---|
| 133 | </listitem> |
---|
[3f8be484] | 134 | <listitem> |
---|
[3514708] | 135 | <para>The <emphasis>math</emphasis> tests sometimes fail. |
---|
| 136 | Certain optimization settings are known to be a |
---|
| 137 | factor here.</para> |
---|
[3f8be484] | 138 | </listitem> |
---|
| 139 | <listitem> |
---|
[fb40919] | 140 | <para>If you have mounted the CLFS partition with the |
---|
[3f8be484] | 141 | <parameter>noatime</parameter> option, the <emphasis>atime</emphasis> test |
---|
| 142 | will fail. As mentioned in <xref linkend="ch-partitioning-mounting"/>, |
---|
| 143 | do not use the <parameter>noatime</parameter> option while building |
---|
[fb40919] | 144 | CLFS.</para> |
---|
[3f8be484] | 145 | </listitem> |
---|
| 146 | <listitem> |
---|
| 147 | <para>When running on older and slower hardware, some tests |
---|
[767a2a5] | 148 | can fail because of test timeouts being exceeded. |
---|
| 149 | Modifying the make check command to set a TIMEOUTFACTOR is reported to |
---|
| 150 | help eliminate these errors (e.g. <command>TIMEOUTFACTOR=16 |
---|
| 151 | make -k check</command>).</para> |
---|
| 152 | </listitem> |
---|
| 153 | <listitem> |
---|
| 154 | <para>posix/tst-getaddrinfo4 will always fail due to not having a network |
---|
| 155 | connection when the test is run.</para> |
---|
[3f8be484] | 156 | </listitem> |
---|
| 157 | </itemizedlist> |
---|
| 158 | |
---|
[d785e9d] | 159 | <para os="q">Though it is a harmless message, the install stage of Glibc will |
---|
[3f8be484] | 160 | complain about the absence of <filename>/etc/ld.so.conf</filename>. |
---|
| 161 | Prevent this warning with:</para> |
---|
| 162 | |
---|
| 163 | <screen os="r"><userinput>touch /etc/ld.so.conf</userinput></screen> |
---|
| 164 | |
---|
[e57ce38] | 165 | <para os="s">Install the package, and remove unneeded files from |
---|
| 166 | <filename class="directory">/usr/include/rpcsvc</filename>:</para> |
---|
[3f8be484] | 167 | |
---|
[e57ce38] | 168 | <screen os="t"><userinput>make install && |
---|
| 169 | rm -v /usr/include/rpcsvc/*.x</userinput></screen> |
---|
[3f8be484] | 170 | |
---|
[cf9aa7e] | 171 | <para os="u">Install the configuration file and runtime directory for |
---|
[dff9ef7] | 172 | <command>nscd</command>:</para> |
---|
[cf9aa7e] | 173 | |
---|
| 174 | <screen os="v"><userinput>cp -v ../glibc-2.19/nscd/nscd.conf /etc/nscd.conf |
---|
| 175 | mkdir -pv /var/cache/nscd</userinput></screen> |
---|
| 176 | |
---|
[0131d1b] | 177 | <para os="w">Install the systemd support files for <command>nscd</command>:</para> |
---|
[cf9aa7e] | 178 | |
---|
| 179 | <screen os="x"><userinput>install -v -Dm644 ../glibc-2.19/nscd/nscd.tmpfiles /usr/lib/tmpfiles.d/nscd.conf |
---|
[0f3ee5b] | 180 | install -v -Dm644 ../glibc-2.19/nscd/nscd.service /lib/systemd/system/nscd.service</userinput></screen> |
---|
[cf9aa7e] | 181 | |
---|
[3f8be484] | 182 | </sect2> |
---|
| 183 | |
---|
[cbbd1e4] | 184 | <sect2 id="i18n-glibc" role="configuration"> |
---|
[3f8be484] | 185 | <title>Internationalization</title> |
---|
| 186 | |
---|
| 187 | <para>The locales that can make the system respond in a different |
---|
[5a321cb] | 188 | language were not installed by the above command. Install them |
---|
[3f8be484] | 189 | with:</para> |
---|
| 190 | |
---|
| 191 | <screen><userinput>make localedata/install-locales</userinput></screen> |
---|
| 192 | |
---|
| 193 | <para>To save time, an alternative to running the previous command (which |
---|
[643f8be] | 194 | generates and installs every locale listed in the |
---|
[cbbd1e4] | 195 | <filename>glibc-&glibc-version;/localedata/SUPPORTED</filename> file) is |
---|
[e7aadbe] | 196 | to install only those locales that are wanted and needed. This can be |
---|
| 197 | achieved by using the <command>localedef</command> command. Information on |
---|
| 198 | this command is located in the <filename>INSTALL</filename> file in the |
---|
[d785e9d] | 199 | Glibc source. However, there are a number of locales that are essential in |
---|
[e7aadbe] | 200 | order for the tests of future packages to pass, in particular, the |
---|
[3f8be484] | 201 | <emphasis>libstdc++</emphasis> tests from GCC. The following instructions, |
---|
| 202 | instead of the <parameter>install-locales</parameter> target used above, |
---|
| 203 | will install the minimum set of locales necessary for the tests to run |
---|
| 204 | successfully:</para> |
---|
| 205 | |
---|
[3a3e135] | 206 | <screen role="nodump"><userinput>mkdir -pv /usr/lib/locale |
---|
[8a10f1c] | 207 | localedef -i cs_CZ -f UTF-8 cs_CZ.UTF-8 |
---|
[3f8be484] | 208 | localedef -i de_DE -f ISO-8859-1 de_DE |
---|
| 209 | localedef -i de_DE@euro -f ISO-8859-15 de_DE@euro |
---|
| 210 | localedef -i en_HK -f ISO-8859-1 en_HK |
---|
| 211 | localedef -i en_PH -f ISO-8859-1 en_PH |
---|
| 212 | localedef -i en_US -f ISO-8859-1 en_US |
---|
| 213 | localedef -i es_MX -f ISO-8859-1 es_MX |
---|
| 214 | localedef -i fa_IR -f UTF-8 fa_IR |
---|
| 215 | localedef -i fr_FR -f ISO-8859-1 fr_FR |
---|
| 216 | localedef -i fr_FR@euro -f ISO-8859-15 fr_FR@euro |
---|
| 217 | localedef -i it_IT -f ISO-8859-1 it_IT |
---|
| 218 | localedef -i ja_JP -f EUC-JP ja_JP</userinput></screen> |
---|
| 219 | |
---|
| 220 | <para>Some locales installed by the <command>make |
---|
| 221 | localedata/install-locales</command> command above are not properly |
---|
[e3a8717] | 222 | supported by some applications that are in CLFS and CBLFS. Because |
---|
[3f8be484] | 223 | of the various problems that arise due to application programmers making |
---|
[fb40919] | 224 | assumptions that break in such locales, CLFS should not be used in locales |
---|
[3f8be484] | 225 | that utilize multibyte character sets (including UTF-8) or right-to-left |
---|
| 226 | writing order. Numerous unofficial and unstable patches are required to |
---|
[fb40919] | 227 | fix these problems, and it has been decided by the CLFS developers not to |
---|
[643f8be] | 228 | support such complex locales at this time. This applies to the ja_JP and |
---|
| 229 | fa_IR locales as well—they have been installed only for GCC and |
---|
| 230 | Gettext tests to pass, and the <command>watch</command> program (part of |
---|
[8184788] | 231 | the Procps-ng package) does not work properly in them. Various attempts to |
---|
[643f8be] | 232 | circumvent these restrictions are documented in internationalization-related |
---|
| 233 | hints.</para> |
---|
[3f8be484] | 234 | |
---|
| 235 | </sect2> |
---|
| 236 | |
---|
[cbbd1e4] | 237 | <sect2 id="conf-glibc" role="configuration"> |
---|
[d785e9d] | 238 | <title>Configuring Glibc</title> |
---|
[3f8be484] | 239 | |
---|
[cbbd1e4] | 240 | <indexterm zone="conf-glibc"> |
---|
[3f8be484] | 241 | <primary sortas="e-/etc/nsswitch.conf">/etc/nsswitch.conf</primary> |
---|
| 242 | </indexterm> |
---|
| 243 | |
---|
[cbbd1e4] | 244 | <indexterm zone="conf-glibc"> |
---|
[3f8be484] | 245 | <primary sortas="e-/etc/localtime">/etc/localtime</primary> |
---|
| 246 | </indexterm> |
---|
| 247 | |
---|
| 248 | <para>The <filename>/etc/nsswitch.conf</filename> file needs to be created |
---|
[d785e9d] | 249 | because, although Glibc provides defaults when this file is missing or |
---|
| 250 | corrupt, the Glibc defaults do not work well in a networked environment. |
---|
[3f8be484] | 251 | The time zone also needs to be configured.</para> |
---|
| 252 | |
---|
| 253 | <para>Create a new file <filename>/etc/nsswitch.conf</filename> by running |
---|
| 254 | the following:</para> |
---|
| 255 | |
---|
| 256 | <screen><userinput>cat > /etc/nsswitch.conf << "EOF" |
---|
| 257 | <literal># Begin /etc/nsswitch.conf |
---|
| 258 | |
---|
| 259 | passwd: files |
---|
| 260 | group: files |
---|
| 261 | shadow: files |
---|
| 262 | |
---|
| 263 | hosts: files dns |
---|
| 264 | networks: files |
---|
| 265 | |
---|
| 266 | protocols: files |
---|
| 267 | services: files |
---|
| 268 | ethers: files |
---|
| 269 | rpc: files |
---|
| 270 | |
---|
| 271 | # End /etc/nsswitch.conf</literal> |
---|
| 272 | EOF</userinput></screen> |
---|
| 273 | |
---|
[52ed4da] | 274 | <para>Install timezone data:</para> |
---|
| 275 | <screen><userinput>tar -xf ../tzdata&tzdata-version;.tar.gz |
---|
| 276 | |
---|
| 277 | ZONEINFO=/usr/share/zoneinfo |
---|
| 278 | mkdir -pv $ZONEINFO/{posix,right} |
---|
| 279 | |
---|
| 280 | for tz in etcetera southamerica northamerica europe africa antarctica \ |
---|
[6e778c3] | 281 | asia australasia backward pacificnew \ |
---|
[52ed4da] | 282 | systemv; do |
---|
| 283 | zic -L /dev/null -d $ZONEINFO -y "sh yearistype.sh" ${tz} |
---|
| 284 | zic -L /dev/null -d $ZONEINFO/posix -y "sh yearistype.sh" ${tz} |
---|
| 285 | zic -L leapseconds -d $ZONEINFO/right -y "sh yearistype.sh" ${tz} |
---|
| 286 | done |
---|
| 287 | |
---|
| 288 | cp -v zone.tab iso3166.tab $ZONEINFO |
---|
| 289 | zic -d $ZONEINFO -p America/New_York |
---|
| 290 | unset ZONEINFO</userinput></screen> |
---|
| 291 | |
---|
| 292 | <variablelist> |
---|
| 293 | <title>The meaning of the zic commands:</title> |
---|
| 294 | |
---|
| 295 | <varlistentry> |
---|
| 296 | <term><parameter>zic -L /dev/null ...</parameter></term> |
---|
| 297 | <listitem> |
---|
| 298 | <para>This creates posix timezones, without any leap seconds. It is |
---|
| 299 | conventional to put these in both |
---|
| 300 | <filename class="directory">zoneinfo</filename> and |
---|
| 301 | <filename class="directory">zoneinfo/posix</filename>. It is |
---|
| 302 | necessary to put the POSIX timezones in |
---|
| 303 | <filename class="directory">zoneinfo</filename>, otherwise various |
---|
| 304 | test-suites will report errors. On an embedded system, where space is |
---|
| 305 | tight and you do not intend to ever update the timezones, you could save |
---|
| 306 | 1.9MB by not using the <filename class="directory">posix</filename> |
---|
| 307 | directory, but some applications or test-suites might give less good |
---|
| 308 | results</para> |
---|
| 309 | </listitem> |
---|
| 310 | </varlistentry> |
---|
| 311 | <varlistentry> |
---|
| 312 | <term><parameter>zic -L leapseconds ...</parameter></term> |
---|
| 313 | <listitem> |
---|
| 314 | <para>This creates right timezones, including leap seconds. On an |
---|
| 315 | embedded system, where space is tight and you do not intend to |
---|
| 316 | ever update the timezones, or care about the correct time, you could |
---|
| 317 | save 1.9MB by omitting the <filename class="directory">right</filename> |
---|
| 318 | directory.</para> |
---|
| 319 | </listitem> |
---|
| 320 | </varlistentry> |
---|
| 321 | <varlistentry> |
---|
| 322 | <term><parameter>zic ... -p ...</parameter></term> |
---|
| 323 | <listitem> |
---|
| 324 | <para>This creates the <filename>posixrules</filename> file. We use |
---|
| 325 | New York because POSIX requires the daylight savings time rules |
---|
| 326 | to be in accordance with US rules.</para> |
---|
| 327 | </listitem> |
---|
| 328 | </varlistentry> |
---|
| 329 | </variablelist> |
---|
| 330 | |
---|
[3f8be484] | 331 | <para>To determine the local time zone, run the following script:</para> |
---|
| 332 | |
---|
[0f3854e] | 333 | <screen role="nodump"><userinput>tzselect</userinput></screen> |
---|
[3f8be484] | 334 | |
---|
| 335 | <para>After answering a few questions about the location, the script will |
---|
| 336 | output the name of the time zone (e.g., <emphasis>EST5EDT</emphasis> or |
---|
| 337 | <emphasis>Canada/Eastern</emphasis>). Then create the |
---|
| 338 | <filename>/etc/localtime</filename> file by running:</para> |
---|
| 339 | |
---|
[63cad62f] | 340 | <screen><userinput>cp -v /usr/share/zoneinfo/<replaceable>[xxx]</replaceable> \ |
---|
[3f8be484] | 341 | /etc/localtime</userinput></screen> |
---|
| 342 | |
---|
| 343 | <para>Replace <replaceable>[xxx]</replaceable> with the name of the time zone |
---|
| 344 | that <command>tzselect</command> provided (e.g., Canada/Eastern).</para> |
---|
| 345 | |
---|
| 346 | </sect2> |
---|
| 347 | |
---|
| 348 | <sect2 id="conf-ld" role="configuration"> |
---|
[0b637f1] | 349 | <title>Configuring The Dynamic Loader</title> |
---|
[3f8be484] | 350 | |
---|
| 351 | <indexterm zone="conf-ld"> |
---|
| 352 | <primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary> |
---|
| 353 | </indexterm> |
---|
| 354 | |
---|
[3998188] | 355 | <para os="ld-a">By default, the dynamic loader (<filename |
---|
[3f8be484] | 356 | class="libraryfile">/lib/ld-linux.so.2</filename>) searches through |
---|
| 357 | <filename class="directory">/lib</filename> and <filename |
---|
| 358 | class="directory">/usr/lib</filename> for dynamic libraries that are |
---|
| 359 | needed by programs as they are run. However, if there are libraries in |
---|
| 360 | directories other than <filename class="directory">/lib</filename> and |
---|
| 361 | <filename class="directory">/usr/lib</filename>, these need to be |
---|
| 362 | added to the <filename>/etc/ld.so.conf</filename> file in order |
---|
| 363 | for the dynamic loader to find them. Two directories that are commonly |
---|
| 364 | known to contain additional libraries are <filename |
---|
| 365 | class="directory">/usr/local/lib</filename> and <filename |
---|
| 366 | class="directory">/opt/lib</filename>, so add those directories to the |
---|
| 367 | dynamic loader's search path.</para> |
---|
| 368 | |
---|
[3998188] | 369 | <para os="ld-b">Create a new file <filename>/etc/ld.so.conf</filename> by running the |
---|
[3f8be484] | 370 | following:</para> |
---|
| 371 | |
---|
[3998188] | 372 | <screen os="ld-c"><userinput>cat > /etc/ld.so.conf << "EOF" |
---|
[3f8be484] | 373 | <literal># Begin /etc/ld.so.conf |
---|
| 374 | |
---|
| 375 | /usr/local/lib |
---|
| 376 | /opt/lib |
---|
| 377 | |
---|
| 378 | # End /etc/ld.so.conf</literal> |
---|
| 379 | EOF</userinput></screen> |
---|
| 380 | |
---|
| 381 | </sect2> |
---|
| 382 | |
---|
[cbbd1e4] | 383 | <sect2 id="contents-glibc" role="content"> |
---|
[d785e9d] | 384 | <title>Contents of Glibc</title> |
---|
[3f8be484] | 385 | |
---|
| 386 | <segmentedlist> |
---|
| 387 | <segtitle>Installed programs</segtitle> |
---|
| 388 | <segtitle>Installed libraries</segtitle> |
---|
[61ad0b7f] | 389 | <segtitle>Installed directories</segtitle> |
---|
[3f8be484] | 390 | |
---|
| 391 | <seglistitem> |
---|
| 392 | <seg>catchsegv, gencat, getconf, getent, iconv, iconvconfig, ldconfig, |
---|
[2b220db9] | 393 | ldd, lddlibc4, locale, localedef, makedb, mtrace, nscd, |
---|
[6d3523f] | 394 | pcprofiledump, pldd, rpcgen, sln, sotruss, sprof, tzselect, xtrace, |
---|
[f698055a] | 395 | zdump, zic</seg> |
---|
[3f8be484] | 396 | <seg>ld.so, libBrokenLocale.[a,so], libSegFault.so, libanl.[a,so], |
---|
[aeb5c611] | 397 | libc.[a,so], libc_nonshared.a, libcidn.[a,so], libcrypt.[a,so], |
---|
| 398 | libdl.[a,so], libg.a, libieee.a, libm.[a,so], libmcheck.a, |
---|
| 399 | libmemusage.so, libnsl.a, libnss_compat.so, libnss_dns.so, |
---|
[188b6b2] | 400 | libnss_files.so, libnss_hesiod.so, libnss_nis.so, libnss_nisplus.so, |
---|
| 401 | libpcprofile.so, libpthread.[a,so], libpthread_nonshared.a, |
---|
[f698055a] | 402 | libresolv.[a,so], librpcsvc.a, librt.[a,so], libthread_db.so, |
---|
[3f8be484] | 403 | libutil.[a,so]</seg> |
---|
[61ad0b7f] | 404 | <seg>/usr/include/arpa, /usr/include/bits, /usr/include/gnu, |
---|
| 405 | /usr/include/net, /usr/include/netash, /usr/include/netatalk, |
---|
| 406 | /usr/include/netax25, /usr/include/neteconet, /usr/include/netinet, |
---|
| 407 | /usr/include/netipx, /usr/include/netiucv, /usr/include/netpacket, |
---|
| 408 | /usr/include/netrom, /usr/include/netrose, /usr/include/nfs, |
---|
| 409 | /usr/include/protocols, /usr/include/rpc, /usr/include/rpcsvc, |
---|
[6d3523f] | 410 | /usr/include/sys, /usr/lib/audit, /usr/lib/gconv, /usr/lib/glibc, /usr/lib/locale, |
---|
[f698055a] | 411 | /usr/share/i18n, /usr/share/zoneinfo, /var/cache/ldconfig, |
---|
[cf9aa7e] | 412 | /var/cache/nscd</seg> |
---|
[3f8be484] | 413 | </seglistitem> |
---|
| 414 | </segmentedlist> |
---|
| 415 | |
---|
| 416 | <variablelist> |
---|
| 417 | <bridgehead renderas="sect3">Short Descriptions</bridgehead> |
---|
| 418 | <?dbfo list-presentation="list"?> |
---|
| 419 | <?dbhtml list-presentation="table"?> |
---|
| 420 | |
---|
| 421 | <varlistentry id="catchsegv"> |
---|
| 422 | <term><command>catchsegv</command></term> |
---|
| 423 | <listitem> |
---|
| 424 | <para>Can be used to create a stack trace when a program |
---|
| 425 | terminates with a segmentation fault</para> |
---|
[cbbd1e4] | 426 | <indexterm zone="ch-system-glibc catchsegv"> |
---|
[3f8be484] | 427 | <primary sortas="b-catchsegv">catchsegv</primary> |
---|
| 428 | </indexterm> |
---|
| 429 | </listitem> |
---|
| 430 | </varlistentry> |
---|
| 431 | |
---|
| 432 | <varlistentry id="gencat"> |
---|
| 433 | <term><command>gencat</command></term> |
---|
| 434 | <listitem> |
---|
| 435 | <para>Generates message catalogues</para> |
---|
[cbbd1e4] | 436 | <indexterm zone="ch-system-glibc gencat"> |
---|
[3f8be484] | 437 | <primary sortas="b-gencat">gencat</primary> |
---|
| 438 | </indexterm> |
---|
| 439 | </listitem> |
---|
| 440 | </varlistentry> |
---|
| 441 | |
---|
| 442 | <varlistentry id="getconf"> |
---|
| 443 | <term><command>getconf</command></term> |
---|
| 444 | <listitem> |
---|
| 445 | <para>Displays the system configuration values for file system specific |
---|
| 446 | variables</para> |
---|
[cbbd1e4] | 447 | <indexterm zone="ch-system-glibc getconf"> |
---|
[3f8be484] | 448 | <primary sortas="b-getconf">getconf</primary> |
---|
| 449 | </indexterm> |
---|
| 450 | </listitem> |
---|
| 451 | </varlistentry> |
---|
| 452 | |
---|
| 453 | <varlistentry id="getent"> |
---|
| 454 | <term><command>getent</command></term> |
---|
| 455 | <listitem> |
---|
| 456 | <para>Gets entries from an administrative database</para> |
---|
[cbbd1e4] | 457 | <indexterm zone="ch-system-glibc getent"> |
---|
[3f8be484] | 458 | <primary sortas="b-getent">getent</primary> |
---|
| 459 | </indexterm> |
---|
| 460 | </listitem> |
---|
| 461 | </varlistentry> |
---|
| 462 | |
---|
| 463 | <varlistentry id="iconv"> |
---|
| 464 | <term><command>iconv</command></term> |
---|
| 465 | <listitem> |
---|
| 466 | <para>Performs character set conversion</para> |
---|
[cbbd1e4] | 467 | <indexterm zone="ch-system-glibc iconv"> |
---|
[3f8be484] | 468 | <primary sortas="b-iconv">iconv</primary> |
---|
| 469 | </indexterm> |
---|
| 470 | </listitem> |
---|
| 471 | </varlistentry> |
---|
| 472 | |
---|
| 473 | <varlistentry id="iconvconfig"> |
---|
| 474 | <term><command>iconvconfig</command></term> |
---|
| 475 | <listitem> |
---|
| 476 | <para>Creates fastloading <command>iconv</command> module configuration |
---|
| 477 | files</para> |
---|
[cbbd1e4] | 478 | <indexterm zone="ch-system-glibc iconvconfig"> |
---|
[3f8be484] | 479 | <primary sortas="b-iconvconfig">iconvconfig</primary> |
---|
| 480 | </indexterm> |
---|
| 481 | </listitem> |
---|
| 482 | </varlistentry> |
---|
| 483 | |
---|
| 484 | <varlistentry id="ldconfig"> |
---|
| 485 | <term><command>ldconfig</command></term> |
---|
| 486 | <listitem> |
---|
| 487 | <para>Configures the dynamic linker runtime bindings</para> |
---|
[cbbd1e4] | 488 | <indexterm zone="ch-system-glibc ldconfig"> |
---|
[3f8be484] | 489 | <primary sortas="b-ldconfig">ldconfig</primary> |
---|
| 490 | </indexterm> |
---|
| 491 | </listitem> |
---|
| 492 | </varlistentry> |
---|
| 493 | |
---|
| 494 | <varlistentry id="ldd"> |
---|
| 495 | <term><command>ldd</command></term> |
---|
| 496 | <listitem> |
---|
| 497 | <para>Reports which shared libraries are required |
---|
| 498 | by each given program or shared library</para> |
---|
[cbbd1e4] | 499 | <indexterm zone="ch-system-glibc ldd"> |
---|
[3f8be484] | 500 | <primary sortas="b-ldd">ldd</primary> |
---|
| 501 | </indexterm> |
---|
| 502 | </listitem> |
---|
| 503 | </varlistentry> |
---|
| 504 | |
---|
| 505 | <varlistentry id="lddlibc4"> |
---|
| 506 | <term><command>lddlibc4</command></term> |
---|
| 507 | <listitem> |
---|
| 508 | <para>Assists <command>ldd</command> with object files</para> |
---|
[cbbd1e4] | 509 | <indexterm zone="ch-system-glibc lddlibc4"> |
---|
[3f8be484] | 510 | <primary sortas="b-lddlibc4">lddlibc4</primary> |
---|
| 511 | </indexterm> |
---|
| 512 | </listitem> |
---|
| 513 | </varlistentry> |
---|
| 514 | |
---|
| 515 | <varlistentry id="locale"> |
---|
| 516 | <term><command>locale</command></term> |
---|
| 517 | <listitem> |
---|
| 518 | <para>Tells the compiler to enable or disable the use of POSIX locales |
---|
| 519 | for built-in operations</para> |
---|
[cbbd1e4] | 520 | <indexterm zone="ch-system-glibc locale"> |
---|
[3f8be484] | 521 | <primary sortas="b-locale">locale</primary> |
---|
| 522 | </indexterm> |
---|
| 523 | </listitem> |
---|
| 524 | </varlistentry> |
---|
| 525 | |
---|
| 526 | <varlistentry id="localedef"> |
---|
| 527 | <term><command>localedef</command></term> |
---|
| 528 | <listitem> |
---|
| 529 | <para>Compiles locale specifications</para> |
---|
[cbbd1e4] | 530 | <indexterm zone="ch-system-glibc localedef"> |
---|
[3f8be484] | 531 | <primary sortas="b-localedef">localedef</primary> |
---|
| 532 | </indexterm> |
---|
| 533 | </listitem> |
---|
| 534 | </varlistentry> |
---|
| 535 | |
---|
[2b220db9] | 536 | <varlistentry id="makedb"> |
---|
| 537 | <term><command>makedb</command></term> |
---|
| 538 | <listitem> |
---|
| 539 | <para>Creates a simple database from textual input</para> |
---|
[cbbd1e4] | 540 | <indexterm zone="ch-system-glibc makedb"> |
---|
[2b220db9] | 541 | <primary sortas="b-makedb">makedb</primary> |
---|
| 542 | </indexterm> |
---|
| 543 | </listitem> |
---|
| 544 | </varlistentry> |
---|
| 545 | |
---|
[3f8be484] | 546 | <varlistentry id="mtrace"> |
---|
| 547 | <term><command>mtrace</command></term> |
---|
| 548 | <listitem> |
---|
| 549 | <para>Reads and interprets a memory trace file and |
---|
| 550 | displays a summary in human-readable format</para> |
---|
[cbbd1e4] | 551 | <indexterm zone="ch-system-glibc mtrace"> |
---|
[3f8be484] | 552 | <primary sortas="b-mtrace">mtrace</primary> |
---|
| 553 | </indexterm> |
---|
| 554 | </listitem> |
---|
| 555 | </varlistentry> |
---|
| 556 | |
---|
| 557 | <varlistentry id="nscd"> |
---|
| 558 | <term><command>nscd</command></term> |
---|
| 559 | <listitem> |
---|
| 560 | <para>A daemon that provides a cache for the most common name |
---|
| 561 | service requests</para> |
---|
[cbbd1e4] | 562 | <indexterm zone="ch-system-glibc nscd"> |
---|
[3f8be484] | 563 | <primary sortas="b-nscd">nscd</primary> |
---|
| 564 | </indexterm> |
---|
| 565 | </listitem> |
---|
| 566 | </varlistentry> |
---|
| 567 | |
---|
| 568 | <varlistentry id="pcprofiledump"> |
---|
| 569 | <term><command>pcprofiledump</command></term> |
---|
| 570 | <listitem> |
---|
| 571 | <para>Dumps information generated by PC profiling</para> |
---|
[cbbd1e4] | 572 | <indexterm zone="ch-system-glibc pcprofiledump"> |
---|
[3f8be484] | 573 | <primary sortas="b-pcprofiledump">pcprofiledump</primary> |
---|
| 574 | </indexterm> |
---|
| 575 | </listitem> |
---|
| 576 | </varlistentry> |
---|
| 577 | |
---|
[2b220db9] | 578 | <varlistentry id="pldd"> |
---|
| 579 | <term><command>pldd</command></term> |
---|
| 580 | <listitem> |
---|
| 581 | <para>Lists dynamic shared objects used by running processes</para> |
---|
[cbbd1e4] | 582 | <indexterm zone="ch-system-glibc pldd"> |
---|
[2b220db9] | 583 | <primary sortas="b-pldd">pldd</primary> |
---|
| 584 | </indexterm> |
---|
| 585 | </listitem> |
---|
| 586 | </varlistentry> |
---|
| 587 | |
---|
[3f8be484] | 588 | <varlistentry id="rpcgen"> |
---|
| 589 | <term><command>rpcgen</command></term> |
---|
| 590 | <listitem> |
---|
| 591 | <para>Generates C code to implement the Remote Procecure Call (RPC) |
---|
| 592 | protocol</para> |
---|
[cbbd1e4] | 593 | <indexterm zone="ch-system-glibc rpcgen"> |
---|
[3f8be484] | 594 | <primary sortas="b-rpcgen">rpcgen</primary> |
---|
| 595 | </indexterm> |
---|
| 596 | </listitem> |
---|
| 597 | </varlistentry> |
---|
| 598 | |
---|
| 599 | <varlistentry id="sln"> |
---|
| 600 | <term><command>sln</command></term> |
---|
| 601 | <listitem> |
---|
[7087cbc] | 602 | <para>A statically linked program that creates symbolic links</para> |
---|
[cbbd1e4] | 603 | <indexterm zone="ch-system-glibc sln"> |
---|
[3f8be484] | 604 | <primary sortas="b-sln">sln</primary> |
---|
| 605 | </indexterm> |
---|
| 606 | </listitem> |
---|
| 607 | </varlistentry> |
---|
| 608 | |
---|
[2b220db9] | 609 | <varlistentry id="sotruss"> |
---|
| 610 | <term><command>sotruss</command></term> |
---|
| 611 | <listitem> |
---|
| 612 | <para>Traces shared library procedure calls of a specified command</para> |
---|
[cbbd1e4] | 613 | <indexterm zone="ch-system-glibc sotruss"> |
---|
[2b220db9] | 614 | <primary sortas="b-sotruss">sotruss</primary> |
---|
| 615 | </indexterm> |
---|
| 616 | </listitem> |
---|
| 617 | </varlistentry> |
---|
| 618 | |
---|
[3f8be484] | 619 | <varlistentry id="sprof"> |
---|
| 620 | <term><command>sprof</command></term> |
---|
| 621 | <listitem> |
---|
| 622 | <para>Reads and displays shared object profiling data</para> |
---|
[cbbd1e4] | 623 | <indexterm zone="ch-system-glibc sprof"> |
---|
[3f8be484] | 624 | <primary sortas="b-sprof">sprof</primary> |
---|
| 625 | </indexterm> |
---|
| 626 | </listitem> |
---|
| 627 | </varlistentry> |
---|
| 628 | |
---|
| 629 | <varlistentry id="tzselect"> |
---|
| 630 | <term><command>tzselect</command></term> |
---|
| 631 | <listitem> |
---|
| 632 | <para>Asks the user about the location of the |
---|
| 633 | system and reports the corresponding time zone description</para> |
---|
[cbbd1e4] | 634 | <indexterm zone="ch-system-glibc tzselect"> |
---|
[3f8be484] | 635 | <primary sortas="b-tzselect">tzselect</primary> |
---|
| 636 | </indexterm> |
---|
| 637 | </listitem> |
---|
| 638 | </varlistentry> |
---|
| 639 | |
---|
| 640 | <varlistentry id="xtrace"> |
---|
| 641 | <term><command>xtrace</command></term> |
---|
| 642 | <listitem> |
---|
| 643 | <para>Traces the execution of a program by |
---|
| 644 | printing the currently executed function</para> |
---|
[cbbd1e4] | 645 | <indexterm zone="ch-system-glibc xtrace"> |
---|
[3f8be484] | 646 | <primary sortas="b-xtrace">xtrace</primary> |
---|
| 647 | </indexterm> |
---|
| 648 | </listitem> |
---|
| 649 | </varlistentry> |
---|
| 650 | |
---|
| 651 | <varlistentry id="zdump"> |
---|
| 652 | <term><command>zdump</command></term> |
---|
| 653 | <listitem> |
---|
| 654 | <para>The time zone dumper</para> |
---|
[cbbd1e4] | 655 | <indexterm zone="ch-system-glibc zdump"> |
---|
[3f8be484] | 656 | <primary sortas="b-zdump">zdump</primary> |
---|
| 657 | </indexterm> |
---|
| 658 | </listitem> |
---|
| 659 | </varlistentry> |
---|
| 660 | |
---|
| 661 | <varlistentry id="zic"> |
---|
| 662 | <term><command>zic</command></term> |
---|
| 663 | <listitem> |
---|
| 664 | <para>The time zone compiler</para> |
---|
[cbbd1e4] | 665 | <indexterm zone="ch-system-glibc zic"> |
---|
[3f8be484] | 666 | <primary sortas="b-zic">zic</primary> |
---|
| 667 | </indexterm> |
---|
| 668 | </listitem> |
---|
| 669 | </varlistentry> |
---|
| 670 | |
---|
| 671 | <varlistentry id="ld.so"> |
---|
| 672 | <term><filename class="libraryfile">ld.so</filename></term> |
---|
| 673 | <listitem> |
---|
| 674 | <para>The helper program for shared library executables</para> |
---|
[cbbd1e4] | 675 | <indexterm zone="ch-system-glibc ld.so"> |
---|
[3f8be484] | 676 | <primary sortas="c-ld.so">ld.so</primary> |
---|
| 677 | </indexterm> |
---|
| 678 | </listitem> |
---|
| 679 | </varlistentry> |
---|
| 680 | |
---|
| 681 | <varlistentry id="libBrokenLocale"> |
---|
| 682 | <term><filename class="libraryfile">libBrokenLocale</filename></term> |
---|
| 683 | <listitem> |
---|
| 684 | <para>Used by programs, such as Mozilla, to solve broken locales</para> |
---|
[cbbd1e4] | 685 | <indexterm zone="ch-system-glibc libBrokenLocale"> |
---|
[3f8be484] | 686 | <primary sortas="c-libBrokenLocale">libBrokenLocale</primary> |
---|
| 687 | </indexterm> |
---|
| 688 | </listitem> |
---|
| 689 | </varlistentry> |
---|
| 690 | |
---|
| 691 | <varlistentry id="libSegFault"> |
---|
| 692 | <term><filename class="libraryfile">libSegFault</filename></term> |
---|
| 693 | <listitem> |
---|
| 694 | <para>The segmentation fault signal handler</para> |
---|
[cbbd1e4] | 695 | <indexterm zone="ch-system-glibc libSegFault"> |
---|
[3f8be484] | 696 | <primary sortas="c-libSegFault">libSegFault</primary> |
---|
| 697 | </indexterm> |
---|
| 698 | </listitem> |
---|
| 699 | </varlistentry> |
---|
| 700 | |
---|
| 701 | <varlistentry id="libanl"> |
---|
| 702 | <term><filename class="libraryfile">libanl</filename></term> |
---|
| 703 | <listitem> |
---|
| 704 | <para>An asynchronous name lookup library</para> |
---|
[cbbd1e4] | 705 | <indexterm zone="ch-system-glibc libanl"> |
---|
[3f8be484] | 706 | <primary sortas="c-libanl">libanl</primary> |
---|
| 707 | </indexterm> |
---|
| 708 | </listitem> |
---|
| 709 | </varlistentry> |
---|
| 710 | |
---|
| 711 | <varlistentry id="libc"> |
---|
| 712 | <term><filename class="libraryfile">libc</filename></term> |
---|
| 713 | <listitem> |
---|
| 714 | <para>The main C library</para> |
---|
[cbbd1e4] | 715 | <indexterm zone="ch-system-glibc libc"> |
---|
[3f8be484] | 716 | <primary sortas="c-libc">libc</primary> |
---|
| 717 | </indexterm> |
---|
| 718 | </listitem> |
---|
| 719 | </varlistentry> |
---|
| 720 | |
---|
[188b6b2] | 721 | <varlistentry id="libcidn"> |
---|
| 722 | <term><filename class="libraryfile">libcidn</filename></term> |
---|
| 723 | <listitem> |
---|
[d785e9d] | 724 | <para>Used internally by Glibc for handling internationalized domain |
---|
[188b6b2] | 725 | names in the <function>getaddrinfo()</function> function</para> |
---|
[cbbd1e4] | 726 | <indexterm zone="ch-system-glibc libcidn"> |
---|
[188b6b2] | 727 | <primary sortas="c-libcidn">libcidn</primary> |
---|
| 728 | </indexterm> |
---|
| 729 | </listitem> |
---|
| 730 | </varlistentry> |
---|
| 731 | |
---|
[3f8be484] | 732 | <varlistentry id="libcrypt"> |
---|
| 733 | <term><filename class="libraryfile">libcrypt</filename></term> |
---|
| 734 | <listitem> |
---|
| 735 | <para>The cryptography library</para> |
---|
[cbbd1e4] | 736 | <indexterm zone="ch-system-glibc libcrypt"> |
---|
[3f8be484] | 737 | <primary sortas="c-libcrypt">libcrypt</primary> |
---|
| 738 | </indexterm> |
---|
| 739 | </listitem> |
---|
| 740 | </varlistentry> |
---|
| 741 | |
---|
| 742 | <varlistentry id="libdl"> |
---|
| 743 | <term><filename class="libraryfile">libdl</filename></term> |
---|
| 744 | <listitem> |
---|
| 745 | <para>The dynamic linking interface library</para> |
---|
[cbbd1e4] | 746 | <indexterm zone="ch-system-glibc libdl"> |
---|
[3f8be484] | 747 | <primary sortas="c-libdl">libdl</primary> |
---|
| 748 | </indexterm> |
---|
| 749 | </listitem> |
---|
| 750 | </varlistentry> |
---|
| 751 | |
---|
| 752 | <varlistentry id="libg"> |
---|
| 753 | <term><filename class="libraryfile">libg</filename></term> |
---|
| 754 | <listitem> |
---|
| 755 | <para>A runtime library for <command>g++</command></para> |
---|
[cbbd1e4] | 756 | <indexterm zone="ch-system-glibc libg"> |
---|
[3f8be484] | 757 | <primary sortas="c-libg">libg</primary> |
---|
| 758 | </indexterm> |
---|
| 759 | </listitem> |
---|
| 760 | </varlistentry> |
---|
| 761 | |
---|
| 762 | <varlistentry id="libieee"> |
---|
| 763 | <term><filename class="libraryfile">libieee</filename></term> |
---|
| 764 | <listitem> |
---|
| 765 | <para>The Institute of Electrical and Electronic Engineers (IEEE) |
---|
| 766 | floating point library</para> |
---|
[cbbd1e4] | 767 | <indexterm zone="ch-system-glibc libieee"> |
---|
[3f8be484] | 768 | <primary sortas="c-libieee">libieee</primary> |
---|
| 769 | </indexterm> |
---|
| 770 | </listitem> |
---|
| 771 | </varlistentry> |
---|
| 772 | |
---|
| 773 | <varlistentry id="libm"> |
---|
| 774 | <term><filename class="libraryfile">libm</filename></term> |
---|
| 775 | <listitem> |
---|
| 776 | <para>The mathematical library</para> |
---|
[cbbd1e4] | 777 | <indexterm zone="ch-system-glibc libm"> |
---|
[3f8be484] | 778 | <primary sortas="c-libm">libm</primary> |
---|
| 779 | </indexterm> |
---|
| 780 | </listitem> |
---|
| 781 | </varlistentry> |
---|
| 782 | |
---|
| 783 | <varlistentry id="libmcheck"> |
---|
| 784 | <term><filename class="libraryfile">libmcheck</filename></term> |
---|
| 785 | <listitem> |
---|
| 786 | <para>Contains code run at boot</para> |
---|
[cbbd1e4] | 787 | <indexterm zone="ch-system-glibc libmcheck"> |
---|
[3f8be484] | 788 | <primary sortas="c-libmcheck">libmcheck</primary> |
---|
| 789 | </indexterm> |
---|
| 790 | </listitem> |
---|
| 791 | </varlistentry> |
---|
| 792 | |
---|
| 793 | <varlistentry id="libmemusage"> |
---|
| 794 | <term><filename class="libraryfile">libmemusage</filename></term> |
---|
| 795 | <listitem> |
---|
[d785e9d] | 796 | <para>Used by <command>memusage</command> (included in Glibc, but |
---|
[7087cbc] | 797 | not built in a base CLFS system as it has additional dependencies) |
---|
| 798 | to help collect information about the memory usage of a program</para> |
---|
[cbbd1e4] | 799 | <indexterm zone="ch-system-glibc libmemusage"> |
---|
[3f8be484] | 800 | <primary sortas="c-libmemusage">libmemusage</primary> |
---|
| 801 | </indexterm> |
---|
| 802 | </listitem> |
---|
| 803 | </varlistentry> |
---|
| 804 | |
---|
| 805 | <varlistentry id="libnsl"> |
---|
| 806 | <term><filename class="libraryfile">libnsl</filename></term> |
---|
| 807 | <listitem> |
---|
| 808 | <para>The network services library</para> |
---|
[cbbd1e4] | 809 | <indexterm zone="ch-system-glibc libnsl"> |
---|
[3f8be484] | 810 | <primary sortas="c-libnsl">libnsl</primary> |
---|
| 811 | </indexterm> |
---|
| 812 | </listitem> |
---|
| 813 | </varlistentry> |
---|
| 814 | |
---|
| 815 | <varlistentry id="libnss"> |
---|
| 816 | <term><filename class="libraryfile">libnss</filename></term> |
---|
| 817 | <listitem> |
---|
| 818 | <para>The Name Service Switch libraries, containing functions for |
---|
| 819 | resolving host names, user names, group names, aliases, services, |
---|
| 820 | protocols, etc.</para> |
---|
[cbbd1e4] | 821 | <indexterm zone="ch-system-glibc libnss"> |
---|
[3f8be484] | 822 | <primary sortas="c-libnss">libnss</primary> |
---|
| 823 | </indexterm> |
---|
| 824 | </listitem> |
---|
| 825 | </varlistentry> |
---|
| 826 | |
---|
| 827 | <varlistentry id="libpcprofile"> |
---|
| 828 | <term><filename class="libraryfile">libpcprofile</filename></term> |
---|
| 829 | <listitem> |
---|
| 830 | <para>Contains profiling functions used to track the amount of CPU |
---|
| 831 | time spent in specific source code lines</para> |
---|
[cbbd1e4] | 832 | <indexterm zone="ch-system-glibc libpcprofile"> |
---|
[3f8be484] | 833 | <primary sortas="c-libpcprofile">libpcprofile</primary> |
---|
| 834 | </indexterm> |
---|
| 835 | </listitem> |
---|
| 836 | </varlistentry> |
---|
| 837 | |
---|
| 838 | <varlistentry id="libpthread"> |
---|
| 839 | <term><filename class="libraryfile">libpthread</filename></term> |
---|
| 840 | <listitem> |
---|
| 841 | <para>The POSIX threads library</para> |
---|
[cbbd1e4] | 842 | <indexterm zone="ch-system-glibc libpthread"> |
---|
[3f8be484] | 843 | <primary sortas="c-libpthread">libpthread</primary> |
---|
| 844 | </indexterm> |
---|
| 845 | </listitem> |
---|
| 846 | </varlistentry> |
---|
| 847 | |
---|
| 848 | <varlistentry id="libresolv"> |
---|
| 849 | <term><filename class="libraryfile">libresolv</filename></term> |
---|
| 850 | <listitem> |
---|
| 851 | <para>Contains functions for creating, sending, and interpreting |
---|
| 852 | packets to the Internet domain name servers</para> |
---|
[cbbd1e4] | 853 | <indexterm zone="ch-system-glibc libresolv"> |
---|
[3f8be484] | 854 | <primary sortas="c-libresolv">libresolv</primary> |
---|
| 855 | </indexterm> |
---|
| 856 | </listitem> |
---|
| 857 | </varlistentry> |
---|
| 858 | |
---|
| 859 | <varlistentry id="librpcsvc"> |
---|
| 860 | <term><filename class="libraryfile">librpcsvc</filename></term> |
---|
| 861 | <listitem> |
---|
| 862 | <para>Contains functions providing miscellaneous RPC services</para> |
---|
[cbbd1e4] | 863 | <indexterm zone="ch-system-glibc librpcsvc"> |
---|
[3f8be484] | 864 | <primary sortas="c-librpcsvc">librpcsvc</primary> |
---|
| 865 | </indexterm> |
---|
| 866 | </listitem> |
---|
| 867 | </varlistentry> |
---|
| 868 | |
---|
| 869 | <varlistentry id="librt"> |
---|
| 870 | <term><filename class="libraryfile">librt</filename></term> |
---|
| 871 | <listitem> |
---|
| 872 | <para>Contains functions providing most of the interfaces specified by |
---|
| 873 | the POSIX.1b Realtime Extension</para> |
---|
[cbbd1e4] | 874 | <indexterm zone="ch-system-glibc librt"> |
---|
[3f8be484] | 875 | <primary sortas="c-librt">librt</primary> |
---|
| 876 | </indexterm> |
---|
| 877 | </listitem> |
---|
| 878 | </varlistentry> |
---|
| 879 | |
---|
| 880 | <varlistentry id="libthread_db"> |
---|
| 881 | <term><filename class="libraryfile">libthread_db</filename></term> |
---|
| 882 | <listitem> |
---|
| 883 | <para>Contains functions useful for |
---|
| 884 | building debuggers for multi-threaded programs</para> |
---|
[cbbd1e4] | 885 | <indexterm zone="ch-system-glibc libthread_db"> |
---|
[3f8be484] | 886 | <primary sortas="c-libthread_db">libthread_db</primary> |
---|
| 887 | </indexterm> |
---|
| 888 | </listitem> |
---|
| 889 | </varlistentry> |
---|
| 890 | |
---|
| 891 | <varlistentry id="libutil"> |
---|
| 892 | <term><filename class="libraryfile">libutil</filename></term> |
---|
| 893 | <listitem> |
---|
| 894 | <para>Contains code for <quote>standard</quote> functions used in |
---|
| 895 | many different Unix utilities</para> |
---|
[cbbd1e4] | 896 | <indexterm zone="ch-system-glibc libutil"> |
---|
[3f8be484] | 897 | <primary sortas="c-libutil">libutil</primary> |
---|
| 898 | </indexterm> |
---|
| 899 | </listitem> |
---|
| 900 | </varlistentry> |
---|
| 901 | |
---|
| 902 | </variablelist> |
---|
| 903 | |
---|
| 904 | </sect2> |
---|
| 905 | |
---|
| 906 | </sect1> |
---|