| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
|
|---|
| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
|
|---|
| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
|
|---|
| 4 | <!ENTITY % general-entities SYSTEM "../general.ent">
|
|---|
| 5 | %general-entities;
|
|---|
| 6 | ]>
|
|---|
| 7 |
|
|---|
| 8 | <sect1 id="ch-system-glibc" role="wrap">
|
|---|
| 9 | <?dbhtml filename="glibc.html"?>
|
|---|
| 10 |
|
|---|
| 11 | <sect1info condition="script">
|
|---|
| 12 | <productname>glibc</productname>
|
|---|
| 13 | <productnumber>&glibc-version;</productnumber>
|
|---|
| 14 | <address>&glibc-url;</address>
|
|---|
| 15 | </sect1info>
|
|---|
| 16 |
|
|---|
| 17 | <title>Glibc-&glibc-version;</title>
|
|---|
| 18 |
|
|---|
| 19 | <indexterm zone="ch-system-glibc">
|
|---|
| 20 | <primary sortas="a-Glibc">Glibc</primary>
|
|---|
| 21 | </indexterm>
|
|---|
| 22 |
|
|---|
| 23 | <sect2 role="package">
|
|---|
| 24 | <title/>
|
|---|
| 25 |
|
|---|
| 26 | <para>The Glibc package contains the main C library. This library provides
|
|---|
| 27 | the basic routines for allocating memory, searching directories, opening and
|
|---|
| 28 | closing files, reading and writing files, string handling, pattern matching,
|
|---|
| 29 | arithmetic, and so on.</para>
|
|---|
| 30 |
|
|---|
| 31 | <segmentedlist>
|
|---|
| 32 | <segtitle>&buildtime;</segtitle>
|
|---|
| 33 | <segtitle>&diskspace;</segtitle>
|
|---|
| 34 |
|
|---|
| 35 | <seglistitem>
|
|---|
| 36 | <seg>&glibc-ch6-sbu;</seg>
|
|---|
| 37 | <seg>&glibc-ch6-du;</seg>
|
|---|
| 38 | </seglistitem>
|
|---|
| 39 | </segmentedlist>
|
|---|
| 40 |
|
|---|
| 41 | </sect2>
|
|---|
| 42 |
|
|---|
| 43 | <sect2 role="installation">
|
|---|
| 44 | <title>Installation of Glibc</title>
|
|---|
| 45 |
|
|---|
| 46 | <note>
|
|---|
| 47 | <para>Some packages outside of LFS suggest installing GNU libiconv in
|
|---|
| 48 | order to translate data from one encoding to another. The project's
|
|---|
| 49 | home page (<ulink url="http://www.gnu.org/software/libiconv/"/>) says
|
|---|
| 50 | <quote>This library provides an <function>iconv()</function>
|
|---|
| 51 | implementation, for use on systems which don't have one, or whose
|
|---|
| 52 | implementation cannot convert from/to Unicode.</quote> Glibc provides
|
|---|
| 53 | an <function>iconv()</function> implementation and can convert from/to
|
|---|
| 54 | Unicode, therefore libiconv is not required on an LFS system.</para>
|
|---|
| 55 | </note>
|
|---|
| 56 |
|
|---|
| 57 | <para>The Glibc build system is self-contained and will install
|
|---|
| 58 | perfectly, even though the compiler specs file and linker are still
|
|---|
| 59 | pointing at <filename class="directory">/tools</filename>. The specs
|
|---|
| 60 | and linker cannot be adjusted before the Glibc install because the
|
|---|
| 61 | Glibc autoconf tests would give false results and defeat the goal
|
|---|
| 62 | of achieving a clean build.</para>
|
|---|
| 63 |
|
|---|
| 64 | <!--
|
|---|
| 65 | This should have been fixed a long time ago.
|
|---|
| 66 |
|
|---|
| 67 | <para>In the vi_VN.TCVN locale, <command>bash</command> enters an infinite
|
|---|
| 68 | loop at startup. It is unknown whether this is a <command>bash</command>
|
|---|
| 69 | bug or a Glibc problem. Disable installation of this locale in order to
|
|---|
| 70 | avoid the problem:</para>
|
|---|
| 71 |
|
|---|
| 72 | <screen><userinput remap="pre">sed -i '/vi_VN.TCVN/d' localedata/SUPPORTED</userinput></screen>
|
|---|
| 73 | -->
|
|---|
| 74 |
|
|---|
| 75 | <para>When running <command>make install</command>, a script called
|
|---|
| 76 | <filename>test-installation.pl</filename> performs a small sanity test on
|
|---|
| 77 | our newly installed Glibc. However, because our toolchain still points to
|
|---|
| 78 | the <filename class="directory">/tools</filename> directory, the sanity
|
|---|
| 79 | test would be carried out against the wrong Glibc. We can force the script
|
|---|
| 80 | to check the Glibc we have just installed with the following:</para>
|
|---|
| 81 |
|
|---|
| 82 | <screen><userinput remap="pre">DL=$(readelf -l /bin/sh | sed -n 's@.*interpret.*/tools\(.*\)]$@\1@p')
|
|---|
| 83 | sed -i "s|libs -o|libs -L/usr/lib -Wl,-dynamic-linker=$DL -o|" \
|
|---|
| 84 | scripts/test-installation.pl
|
|---|
| 85 | unset DL</userinput></screen>
|
|---|
| 86 |
|
|---|
| 87 | <para>In addition, there is a bug in the
|
|---|
| 88 | <filename>test-installation.pl</filename> script in that it tries to link
|
|---|
| 89 | a test program to a library that isn't installed by
|
|---|
| 90 | <command>make install</command>. Issue the following <command>sed</command>
|
|---|
| 91 | command to fix it:</para>
|
|---|
| 92 |
|
|---|
| 93 | <screen><userinput remap="pre">sed -i -e 's/"db1"/& \&\& $name ne "nss_test1"/' scripts/test-installation.pl</userinput></screen>
|
|---|
| 94 |
|
|---|
| 95 | <para>The <command>ldd</command> shell script contains Bash-specific
|
|---|
| 96 | syntax. Change its default program interpreter to <command>/bin/bash</command>
|
|---|
| 97 | in case another <command>/bin/sh</command> is installed as described in the
|
|---|
| 98 | <ulink url="&blfs-root;view/svn/postlfs/shells.html">Shells</ulink>
|
|---|
| 99 | chapter of the BLFS book:</para>
|
|---|
| 100 |
|
|---|
| 101 | <screen><userinput remap="pre">sed -i 's|@BASH@|/bin/bash|' elf/ldd.bash.in</userinput></screen>
|
|---|
| 102 |
|
|---|
| 103 | <para>Fix a bug that prevents Glibc from building with GCC-&gcc-version;:</para>
|
|---|
| 104 |
|
|---|
| 105 | <screen><userinput remap="pre">patch -Np1 -i ../&glibc-gcc_fix-patch;</userinput></screen>
|
|---|
| 106 |
|
|---|
| 107 | <para>Fix a stack imbalance that occurs under some conditions:</para>
|
|---|
| 108 |
|
|---|
| 109 | <screen><userinput remap="pre">sed -i '195,213 s/PRIVATE_FUTEX/FUTEX_CLOCK_REALTIME/' \
|
|---|
| 110 | nptl/sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timed{rd,wr}lock.S</userinput></screen>
|
|---|
| 111 |
|
|---|
| 112 | <para>The Glibc documentation recommends building Glibc outside of the source
|
|---|
| 113 | directory in a dedicated build directory:</para>
|
|---|
| 114 |
|
|---|
| 115 | <screen><userinput remap="pre">mkdir -v ../glibc-build
|
|---|
| 116 | cd ../glibc-build</userinput></screen>
|
|---|
| 117 |
|
|---|
| 118 | <para>As in Chapter 5, add the needed compiler flags to CFLAGS for x86 machines.
|
|---|
| 119 | Here, the optimization of the library is also set for the gcc compiler to
|
|---|
| 120 | enhance compilation speed (-pipe) and package performance (-O3).</para>
|
|---|
| 121 |
|
|---|
| 122 | <screen><userinput remap="configure">case `uname -m` in
|
|---|
| 123 | i?86) echo "CFLAGS += -march=i486 -mtune=native -O3 -pipe" > configparms ;;
|
|---|
| 124 | esac</userinput></screen>
|
|---|
| 125 |
|
|---|
| 126 | <para>Prepare Glibc for compilation:</para>
|
|---|
| 127 |
|
|---|
| 128 | <screen><userinput remap="configure">../glibc-&glibc-version;/configure --prefix=/usr \
|
|---|
| 129 | --disable-profile --enable-add-ons \
|
|---|
| 130 | --enable-kernel=2.6.22.5 --libexecdir=/usr/lib/glibc</userinput></screen>
|
|---|
| 131 |
|
|---|
| 132 | <variablelist>
|
|---|
| 133 | <title>The meaning of the new configure options:</title>
|
|---|
| 134 |
|
|---|
| 135 | <varlistentry>
|
|---|
| 136 | <term><parameter>--libexecdir=/usr/lib/glibc</parameter></term>
|
|---|
| 137 | <listitem>
|
|---|
| 138 | <para>This changes the location of the <command>pt_chown</command>
|
|---|
| 139 | program from its default of <filename
|
|---|
| 140 | class="directory">/usr/libexec</filename> to <filename
|
|---|
| 141 | class="directory">/usr/lib/glibc</filename>.</para>
|
|---|
| 142 | </listitem>
|
|---|
| 143 | </varlistentry>
|
|---|
| 144 |
|
|---|
| 145 | </variablelist>
|
|---|
| 146 |
|
|---|
| 147 | <para>Compile the package:</para>
|
|---|
| 148 |
|
|---|
| 149 | <screen><userinput remap="make">make</userinput></screen>
|
|---|
| 150 |
|
|---|
| 151 | <important>
|
|---|
| 152 | <para>In this section, the test suite for Glibc is considered critical.
|
|---|
| 153 | Do not skip it under any circumstance.</para>
|
|---|
| 154 | </important>
|
|---|
| 155 |
|
|---|
| 156 | <para>Before running the tests, copy a file from the source tree into our
|
|---|
| 157 | build tree to prevent a couple of test failures, then test the
|
|---|
| 158 | results:</para>
|
|---|
| 159 |
|
|---|
| 160 | <screen><userinput remap="test">cp -v ../glibc-&glibc-version;/iconvdata/gconv-modules iconvdata
|
|---|
| 161 | make -k check 2>&1 | tee glibc-check-log
|
|---|
| 162 | grep Error glibc-check-log</userinput></screen>
|
|---|
| 163 |
|
|---|
| 164 | <para>You will probably see an expected (ignored) failure in the
|
|---|
| 165 | <emphasis>posix/annexc</emphasis> test. In addition the Glibc test suite
|
|---|
| 166 | is somewhat dependent on the host system. This is a list of the most
|
|---|
| 167 | common issues:</para>
|
|---|
| 168 |
|
|---|
| 169 | <itemizedlist>
|
|---|
| 170 | <!-- Check again after updating from gcc-4.1.x -->
|
|---|
| 171 | <!-- Haven;t seen this in quite a while <listitem>
|
|---|
| 172 | <para>The <emphasis>nptl/tst-cancel1</emphasis> test will fail when
|
|---|
| 173 | using the 4.1 series of GCC.</para>
|
|---|
| 174 | </listitem> -->
|
|---|
| 175 | <!-- Was true in glibc-2.3.6, rt/tst-cpuclock2 in glibc-2.11.1 -->
|
|---|
| 176 | <listitem>
|
|---|
| 177 |
|
|---|
| 178 | <para>The <emphasis>nptl/tst-clock2</emphasis>,
|
|---|
| 179 | <emphasis>nptl/tst-attr3</emphasis>, and
|
|---|
| 180 | <emphasis>rt/tst-cpuclock2</emphasis>
|
|---|
| 181 | tests have been known to fail. The
|
|---|
| 182 | reason is not completely understood, but indications are that minor
|
|---|
| 183 | timing issues can trigger these failures.</para>
|
|---|
| 184 |
|
|---|
| 185 | </listitem>
|
|---|
| 186 | <listitem>
|
|---|
| 187 | <para>The math tests sometimes fail when running on
|
|---|
| 188 | systems where the CPU is not a relatively new genuine Intel or
|
|---|
| 189 | authentic AMD processor.</para>
|
|---|
| 190 | </listitem>
|
|---|
| 191 | <listitem>
|
|---|
| 192 | <para>If you have mounted the LFS partition with the
|
|---|
| 193 | <parameter>noatime</parameter> option, the <emphasis>atime</emphasis>
|
|---|
| 194 | test will fail. As mentioned in <xref linkend="space-mounting"/>, do not
|
|---|
| 195 | use the <parameter>noatime</parameter> option while building LFS.</para>
|
|---|
| 196 | </listitem>
|
|---|
| 197 | <listitem>
|
|---|
| 198 | <para>When running on older and slower hardware or on systems under
|
|---|
| 199 | load, some tests can fail because of test timeouts being exceeded.
|
|---|
| 200 | Modifying the make check command to set a TIMEOUTFACTOR is reported to
|
|---|
| 201 | help eliminate these errors (e.g. <command>TIMEOUTFACTOR=16
|
|---|
| 202 | make -k check</command>).</para>
|
|---|
| 203 | </listitem>
|
|---|
| 204 | </itemizedlist>
|
|---|
| 205 |
|
|---|
| 206 | <para>Though it is a harmless message, the install stage of Glibc will
|
|---|
| 207 | complain about the absence of <filename>/etc/ld.so.conf</filename>.
|
|---|
| 208 | Prevent this warning with:</para>
|
|---|
| 209 |
|
|---|
| 210 | <screen><userinput remap="install">touch /etc/ld.so.conf</userinput></screen>
|
|---|
| 211 |
|
|---|
| 212 | <para>Install the package:</para>
|
|---|
| 213 |
|
|---|
| 214 | <screen><userinput remap="install">make install</userinput></screen>
|
|---|
| 215 |
|
|---|
| 216 | <para>The locales that can make the system respond in a different language
|
|---|
| 217 | were not installed by the above command. None of the locales are required,
|
|---|
| 218 | but if some of them are missing, test suites of the future packages would
|
|---|
| 219 | skip important testcases.</para>
|
|---|
| 220 |
|
|---|
| 221 | <para>Individual locales can be installed using the
|
|---|
| 222 | <command>localedef</command> program. E.g., the first
|
|---|
| 223 | <command>localedef</command> command below combines the
|
|---|
| 224 | <filename>/usr/share/i18n/locales/cs_CZ</filename>
|
|---|
| 225 | charset-independent locale definition with the
|
|---|
| 226 | <filename>/usr/share/i18n/charmaps/UTF-8.gz</filename>
|
|---|
| 227 | charmap definition and appends the result to the
|
|---|
| 228 | <filename>/usr/lib/locale/locale-archive</filename> file.
|
|---|
| 229 | The following instructions will install the minimum set of
|
|---|
| 230 | locales necessary for the optimal coverage of tests:</para>
|
|---|
| 231 |
|
|---|
| 232 | <screen role="nodump"><userinput remap="locale-test">mkdir -pv /usr/lib/locale
|
|---|
| 233 | localedef -i cs_CZ -f UTF-8 cs_CZ.UTF-8
|
|---|
| 234 | localedef -i de_DE -f ISO-8859-1 de_DE
|
|---|
| 235 | localedef -i de_DE@euro -f ISO-8859-15 de_DE@euro
|
|---|
| 236 | localedef -i de_DE -f UTF-8 de_DE.UTF-8
|
|---|
| 237 | localedef -i en_HK -f ISO-8859-1 en_HK
|
|---|
| 238 | localedef -i en_PH -f ISO-8859-1 en_PH
|
|---|
| 239 | localedef -i en_US -f ISO-8859-1 en_US
|
|---|
| 240 | localedef -i en_US -f UTF-8 en_US.UTF-8
|
|---|
| 241 | localedef -i es_MX -f ISO-8859-1 es_MX
|
|---|
| 242 | localedef -i fa_IR -f UTF-8 fa_IR
|
|---|
| 243 | localedef -i fr_FR -f ISO-8859-1 fr_FR
|
|---|
| 244 | localedef -i fr_FR@euro -f ISO-8859-15 fr_FR@euro
|
|---|
| 245 | localedef -i fr_FR -f UTF-8 fr_FR.UTF-8
|
|---|
| 246 | localedef -i it_IT -f ISO-8859-1 it_IT
|
|---|
| 247 | localedef -i ja_JP -f EUC-JP ja_JP
|
|---|
| 248 | localedef -i tr_TR -f UTF-8 tr_TR.UTF-8
|
|---|
| 249 | localedef -i zh_CN -f GB18030 zh_CN.GB18030</userinput></screen>
|
|---|
| 250 |
|
|---|
| 251 | <para>In addition, install the locale for your own country, language and
|
|---|
| 252 | character set.</para>
|
|---|
| 253 |
|
|---|
| 254 | <para>Alternatively, install all locales listed in the
|
|---|
| 255 | <filename>glibc-&glibc-version;/localedata/SUPPORTED</filename> file
|
|---|
| 256 | (it includes every locale listed above and many more) at once with the
|
|---|
| 257 | following time-consuming command:</para>
|
|---|
| 258 |
|
|---|
| 259 | <screen><userinput remap="locale-full">make localedata/install-locales</userinput></screen>
|
|---|
| 260 |
|
|---|
| 261 | <para>Then use the <command>localedef</command> command to create and
|
|---|
| 262 | install locales not listed in the
|
|---|
| 263 | <filename>glibc-&glibc-version;/localedata/SUPPORTED</filename> file
|
|---|
| 264 | in the unlikely case you need them.</para>
|
|---|
| 265 | <!-- The Live CD patches the localedata/SUPPORTED file instead of
|
|---|
| 266 | running localedef, the results are equivalent -->
|
|---|
| 267 |
|
|---|
| 268 | </sect2>
|
|---|
| 269 |
|
|---|
| 270 | <sect2 id="conf-glibc" role="configuration">
|
|---|
| 271 | <title>Configuring Glibc</title>
|
|---|
| 272 |
|
|---|
| 273 | <indexterm zone="conf-glibc">
|
|---|
| 274 | <primary sortas="e-/etc/nsswitch.conf">/etc/nsswitch.conf</primary>
|
|---|
| 275 | </indexterm>
|
|---|
| 276 |
|
|---|
| 277 | <indexterm zone="conf-glibc">
|
|---|
| 278 | <primary sortas="e-/etc/localtime">/etc/localtime</primary>
|
|---|
| 279 | </indexterm>
|
|---|
| 280 |
|
|---|
| 281 | <para>The <filename>/etc/nsswitch.conf</filename> file needs to be created
|
|---|
| 282 | because, although Glibc provides defaults when this file is missing or corrupt,
|
|---|
| 283 | the Glibc defaults do not work well in a networked environment. The time zone
|
|---|
| 284 | also needs to be configured.</para>
|
|---|
| 285 |
|
|---|
| 286 | <para>Create a new file <filename>/etc/nsswitch.conf</filename> by running the
|
|---|
| 287 | following:</para>
|
|---|
| 288 |
|
|---|
| 289 | <screen><userinput>cat > /etc/nsswitch.conf << "EOF"
|
|---|
| 290 | <literal># Begin /etc/nsswitch.conf
|
|---|
| 291 |
|
|---|
| 292 | passwd: files
|
|---|
| 293 | group: files
|
|---|
| 294 | shadow: files
|
|---|
| 295 |
|
|---|
| 296 | hosts: files dns
|
|---|
| 297 | networks: files
|
|---|
| 298 |
|
|---|
| 299 | protocols: files
|
|---|
| 300 | services: files
|
|---|
| 301 | ethers: files
|
|---|
| 302 | rpc: files
|
|---|
| 303 |
|
|---|
| 304 | # End /etc/nsswitch.conf</literal>
|
|---|
| 305 | EOF</userinput></screen>
|
|---|
| 306 |
|
|---|
| 307 | <para>One way to determine the local time zone, run the following
|
|---|
| 308 | script:</para>
|
|---|
| 309 |
|
|---|
| 310 | <screen role="nodump"><userinput>tzselect</userinput></screen>
|
|---|
| 311 |
|
|---|
| 312 | <para>After answering a few questions about the location, the script will
|
|---|
| 313 | output the name of the time zone (e.g.,
|
|---|
| 314 | <emphasis>America/Edmonton</emphasis>). There are also some other possible
|
|---|
| 315 | timezones listed in <filename
|
|---|
| 316 | class='directory'>/usr/share/zoneinfo</filename> such as
|
|---|
| 317 | <emphasis>Canada/Eastern</emphasis> or <emphasis>EST5EDT</emphasis> that
|
|---|
| 318 | are not identified by the script but can be used.</para>
|
|---|
| 319 |
|
|---|
| 320 | <para>Then create the <filename>/etc/localtime</filename> file by
|
|---|
| 321 | running:</para>
|
|---|
| 322 |
|
|---|
| 323 | <screen><userinput>cp -v --remove-destination /usr/share/zoneinfo/<replaceable><xxx></replaceable> \
|
|---|
| 324 | /etc/localtime</userinput></screen>
|
|---|
| 325 |
|
|---|
| 326 | <para>Replace <replaceable><xxx></replaceable> with the name of the
|
|---|
| 327 | time zone selected (e.g., Canada/Eastern).</para>
|
|---|
| 328 |
|
|---|
| 329 | <variablelist>
|
|---|
| 330 | <title>The meaning of the cp option:</title>
|
|---|
| 331 |
|
|---|
| 332 | <varlistentry>
|
|---|
| 333 | <term><parameter>--remove-destination</parameter></term>
|
|---|
| 334 | <listitem>
|
|---|
| 335 | <para>This is needed to force removal of the already existing symbolic
|
|---|
| 336 | link. The reason for copying the file instead of using a symlink is to
|
|---|
| 337 | cover the situation where <filename class="directory">/usr</filename>
|
|---|
| 338 | is on a separate partition. This could be important when booted into
|
|---|
| 339 | single user mode.</para>
|
|---|
| 340 | </listitem>
|
|---|
| 341 | </varlistentry>
|
|---|
| 342 |
|
|---|
| 343 | </variablelist>
|
|---|
| 344 |
|
|---|
| 345 | </sect2>
|
|---|
| 346 |
|
|---|
| 347 | <sect2 id="conf-ld" role="configuration">
|
|---|
| 348 | <title>Configuring the Dynamic Loader</title>
|
|---|
| 349 |
|
|---|
| 350 | <indexterm zone="conf-ld">
|
|---|
| 351 | <primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary>
|
|---|
| 352 | </indexterm>
|
|---|
| 353 |
|
|---|
| 354 | <para>By default, the dynamic loader (<filename
|
|---|
| 355 | class="libraryfile">/lib/ld-linux.so.2</filename>) searches through
|
|---|
| 356 | <filename class="directory">/lib</filename> and <filename
|
|---|
| 357 | class="directory">/usr/lib</filename> for dynamic libraries that are
|
|---|
| 358 | needed by programs as they are run. However, if there are libraries in
|
|---|
| 359 | directories other than <filename class="directory">/lib</filename> and
|
|---|
| 360 | <filename class="directory">/usr/lib</filename>, these need to be added
|
|---|
| 361 | to the <filename>/etc/ld.so.conf</filename> file in order for the
|
|---|
| 362 | dynamic loader to find them. Two directories that are commonly known
|
|---|
| 363 | to contain additional libraries are <filename
|
|---|
| 364 | class="directory">/usr/local/lib</filename> and <filename
|
|---|
| 365 | class="directory">/opt/lib</filename>, so add those directories to the
|
|---|
| 366 | dynamic loader's search path.</para>
|
|---|
| 367 |
|
|---|
| 368 | <para>Create a new file <filename>/etc/ld.so.conf</filename> by running the
|
|---|
| 369 | following:</para>
|
|---|
| 370 |
|
|---|
| 371 | <screen><userinput>cat > /etc/ld.so.conf << "EOF"
|
|---|
| 372 | <literal># Begin /etc/ld.so.conf
|
|---|
| 373 | /usr/local/lib
|
|---|
| 374 | /opt/lib
|
|---|
| 375 | </literal>
|
|---|
| 376 | EOF</userinput></screen>
|
|---|
| 377 |
|
|---|
| 378 | <para>If desired, the dynamic loader can also search a directory and
|
|---|
| 379 | include the contents of files found there. Generally the files in
|
|---|
| 380 | this include directory are one line specifying the desired library path.
|
|---|
| 381 | To add this capability run the following commands:</para>
|
|---|
| 382 |
|
|---|
| 383 | <screen role="nodump"><userinput>cat >> /etc/ld.so.conf << "EOF"
|
|---|
| 384 | <literal># Add an include directory
|
|---|
| 385 | include /etc/ld.so.conf.d/*.conf
|
|---|
| 386 | </literal>
|
|---|
| 387 | EOF
|
|---|
| 388 | mkdir /etc/ld.so.conf.d</userinput></screen>
|
|---|
| 389 |
|
|---|
| 390 | </sect2>
|
|---|
| 391 |
|
|---|
| 392 | <sect2 id="contents-glibc" role="content">
|
|---|
| 393 | <title>Contents of Glibc</title>
|
|---|
| 394 |
|
|---|
| 395 | <segmentedlist>
|
|---|
| 396 | <segtitle>Installed programs</segtitle>
|
|---|
| 397 | <segtitle>Installed libraries</segtitle>
|
|---|
| 398 | <segtitle>Installed directories</segtitle>
|
|---|
| 399 |
|
|---|
| 400 | <seglistitem>
|
|---|
| 401 | <seg>catchsegv, gencat, getconf, getent, iconv, iconvconfig, ldconfig,
|
|---|
| 402 | ldd, lddlibc4, locale, localedef, mtrace, nscd, pcprofiledump,
|
|---|
| 403 | pt_chown, rpcgen, rpcinfo, sln, sprof, tzselect, xtrace,
|
|---|
| 404 | zdump, and zic</seg>
|
|---|
| 405 | <seg>ld.so, libBrokenLocale.{a,so}, libSegFault.so, libanl.{a,so},
|
|---|
| 406 | libbsd-compat.a, libc.{a,so}, libc_nonshared.a, libcidn.so,
|
|---|
| 407 | libcrypt.{a,so}, libdl.{a,so}, libg.a, libieee.a, libm.{a,so},
|
|---|
| 408 | libmcheck.a, libmemusage.so, libnsl.{a,so}, libnss_compat.so,
|
|---|
| 409 | libnss_dns.so, libnss_files.so, libnss_hesiod.so, libnss_nis.so,
|
|---|
| 410 | libnss_nisplus.so, libpcprofile.so, libpthread.{a,so},
|
|---|
| 411 | libpthread_nonshared.a, libresolv.{a,so}, librpcsvc.a, librt.{a,so},
|
|---|
| 412 | libthread_db.so, and libutil.{a,so}</seg>
|
|---|
| 413 | <seg>/usr/include/arpa, /usr/include/bits, /usr/include/gnu,
|
|---|
| 414 | /usr/include/net, /usr/include/netash, /usr/include/netatalk,
|
|---|
| 415 | /usr/include/netax25, /usr/include/neteconet, /usr/include/netinet,
|
|---|
| 416 | /usr/include/netipx, /usr/include/netiucv, /usr/include/netpacket,
|
|---|
| 417 | /usr/include/netrom, /usr/include/netrose, /usr/include/nfs,
|
|---|
| 418 | /usr/include/protocols, /usr/include/rpc, /usr/include/rpcsvc,
|
|---|
| 419 | /usr/include/sys, /usr/lib/gconv, /usr/lib/glibc, /usr/lib/locale,
|
|---|
| 420 | /usr/share/i18n, /usr/share/zoneinfo</seg>
|
|---|
| 421 | </seglistitem>
|
|---|
| 422 | </segmentedlist>
|
|---|
| 423 |
|
|---|
| 424 | <variablelist>
|
|---|
| 425 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
|---|
| 426 | <?dbfo list-presentation="list"?>
|
|---|
| 427 | <?dbhtml list-presentation="table"?>
|
|---|
| 428 |
|
|---|
| 429 | <varlistentry id="catchsegv">
|
|---|
| 430 | <term><command>catchsegv</command></term>
|
|---|
| 431 | <listitem>
|
|---|
| 432 | <para>Can be used to create a stack trace when a program
|
|---|
| 433 | terminates with a segmentation fault</para>
|
|---|
| 434 | <indexterm zone="ch-system-glibc catchsegv">
|
|---|
| 435 | <primary sortas="b-catchsegv">catchsegv</primary>
|
|---|
| 436 | </indexterm>
|
|---|
| 437 | </listitem>
|
|---|
| 438 | </varlistentry>
|
|---|
| 439 |
|
|---|
| 440 | <varlistentry id="gencat">
|
|---|
| 441 | <term><command>gencat</command></term>
|
|---|
| 442 | <listitem>
|
|---|
| 443 | <para>Generates message catalogues</para>
|
|---|
| 444 | <indexterm zone="ch-system-glibc gencat">
|
|---|
| 445 | <primary sortas="b-gencat">gencat</primary>
|
|---|
| 446 | </indexterm>
|
|---|
| 447 | </listitem>
|
|---|
| 448 | </varlistentry>
|
|---|
| 449 |
|
|---|
| 450 | <varlistentry id="getconf">
|
|---|
| 451 | <term><command>getconf</command></term>
|
|---|
| 452 | <listitem>
|
|---|
| 453 | <para>Displays the system configuration values for file system
|
|---|
| 454 | specific variables</para>
|
|---|
| 455 | <indexterm zone="ch-system-glibc getconf">
|
|---|
| 456 | <primary sortas="b-getconf">getconf</primary>
|
|---|
| 457 | </indexterm>
|
|---|
| 458 | </listitem>
|
|---|
| 459 | </varlistentry>
|
|---|
| 460 |
|
|---|
| 461 | <varlistentry id="getent">
|
|---|
| 462 | <term><command>getent</command></term>
|
|---|
| 463 | <listitem>
|
|---|
| 464 | <para>Gets entries from an administrative database</para>
|
|---|
| 465 | <indexterm zone="ch-system-glibc getent">
|
|---|
| 466 | <primary sortas="b-getent">getent</primary>
|
|---|
| 467 | </indexterm>
|
|---|
| 468 | </listitem>
|
|---|
| 469 | </varlistentry>
|
|---|
| 470 |
|
|---|
| 471 | <varlistentry id="iconv">
|
|---|
| 472 | <term><command>iconv</command></term>
|
|---|
| 473 | <listitem>
|
|---|
| 474 | <para>Performs character set conversion</para>
|
|---|
| 475 | <indexterm zone="ch-system-glibc iconv">
|
|---|
| 476 | <primary sortas="b-iconv">iconv</primary>
|
|---|
| 477 | </indexterm>
|
|---|
| 478 | </listitem>
|
|---|
| 479 | </varlistentry>
|
|---|
| 480 |
|
|---|
| 481 | <varlistentry id="iconvconfig">
|
|---|
| 482 | <term><command>iconvconfig</command></term>
|
|---|
| 483 | <listitem>
|
|---|
| 484 | <para>Creates fastloading <command>iconv</command> module configuration
|
|---|
| 485 | files</para>
|
|---|
| 486 | <indexterm zone="ch-system-glibc iconvconfig">
|
|---|
| 487 | <primary sortas="b-iconvconfig">iconvconfig</primary>
|
|---|
| 488 | </indexterm>
|
|---|
| 489 | </listitem>
|
|---|
| 490 | </varlistentry>
|
|---|
| 491 |
|
|---|
| 492 | <varlistentry id="ldconfig">
|
|---|
| 493 | <term><command>ldconfig</command></term>
|
|---|
| 494 | <listitem>
|
|---|
| 495 | <para>Configures the dynamic linker runtime bindings</para>
|
|---|
| 496 | <indexterm zone="ch-system-glibc ldconfig">
|
|---|
| 497 | <primary sortas="b-ldconfig">ldconfig</primary>
|
|---|
| 498 | </indexterm>
|
|---|
| 499 | </listitem>
|
|---|
| 500 | </varlistentry>
|
|---|
| 501 |
|
|---|
| 502 | <varlistentry id="ldd">
|
|---|
| 503 | <term><command>ldd</command></term>
|
|---|
| 504 | <listitem>
|
|---|
| 505 | <para>Reports which shared libraries are required
|
|---|
| 506 | by each given program or shared library</para>
|
|---|
| 507 | <indexterm zone="ch-system-glibc ldd">
|
|---|
| 508 | <primary sortas="b-ldd">ldd</primary>
|
|---|
| 509 | </indexterm>
|
|---|
| 510 | </listitem>
|
|---|
| 511 | </varlistentry>
|
|---|
| 512 |
|
|---|
| 513 | <varlistentry id="lddlibc4">
|
|---|
| 514 | <term><command>lddlibc4</command></term>
|
|---|
| 515 | <listitem>
|
|---|
| 516 | <para>Assists <command>ldd</command> with object files</para>
|
|---|
| 517 | <indexterm zone="ch-system-glibc lddlibc4">
|
|---|
| 518 | <primary sortas="b-lddlibc4">lddlibc4</primary>
|
|---|
| 519 | </indexterm>
|
|---|
| 520 | </listitem>
|
|---|
| 521 | </varlistentry>
|
|---|
| 522 |
|
|---|
| 523 | <varlistentry id="locale">
|
|---|
| 524 | <term><command>locale</command></term>
|
|---|
| 525 | <listitem>
|
|---|
| 526 | <para>Prints various information about the current locale</para>
|
|---|
| 527 | <indexterm zone="ch-system-glibc locale">
|
|---|
| 528 | <primary sortas="b-locale">locale</primary>
|
|---|
| 529 | </indexterm>
|
|---|
| 530 | </listitem>
|
|---|
| 531 | </varlistentry>
|
|---|
| 532 |
|
|---|
| 533 | <varlistentry id="localedef">
|
|---|
| 534 | <term><command>localedef</command></term>
|
|---|
| 535 | <listitem>
|
|---|
| 536 | <para>Compiles locale specifications</para>
|
|---|
| 537 | <indexterm zone="ch-system-glibc localedef">
|
|---|
| 538 | <primary sortas="b-localedef">localedef</primary>
|
|---|
| 539 | </indexterm>
|
|---|
| 540 | </listitem>
|
|---|
| 541 | </varlistentry>
|
|---|
| 542 |
|
|---|
| 543 | <varlistentry id="mtrace">
|
|---|
| 544 | <term><command>mtrace</command></term>
|
|---|
| 545 | <listitem>
|
|---|
| 546 | <para>Reads and interprets a memory trace file and displays a summary
|
|---|
| 547 | in human-readable format</para>
|
|---|
| 548 | <indexterm zone="ch-system-glibc mtrace">
|
|---|
| 549 | <primary sortas="b-mtrace">mtrace</primary>
|
|---|
| 550 | </indexterm>
|
|---|
| 551 | </listitem>
|
|---|
| 552 | </varlistentry>
|
|---|
| 553 |
|
|---|
| 554 | <varlistentry id="nscd">
|
|---|
| 555 | <term><command>nscd</command></term>
|
|---|
| 556 | <listitem>
|
|---|
| 557 | <para>A daemon that provides a cache for the most common name
|
|---|
| 558 | service requests</para>
|
|---|
| 559 | <indexterm zone="ch-system-glibc nscd">
|
|---|
| 560 | <primary sortas="b-nscd">nscd</primary>
|
|---|
| 561 | </indexterm>
|
|---|
| 562 | </listitem>
|
|---|
| 563 | </varlistentry>
|
|---|
| 564 |
|
|---|
| 565 | <varlistentry id="pcprofiledump">
|
|---|
| 566 | <term><command>pcprofiledump</command></term>
|
|---|
| 567 | <listitem>
|
|---|
| 568 | <para>Dumps information generated by PC profiling</para>
|
|---|
| 569 | <indexterm zone="ch-system-glibc pcprofiledump">
|
|---|
| 570 | <primary sortas="b-pcprofiledump">pcprofiledump</primary>
|
|---|
| 571 | </indexterm>
|
|---|
| 572 | </listitem>
|
|---|
| 573 | </varlistentry>
|
|---|
| 574 |
|
|---|
| 575 | <varlistentry id="pt_chown">
|
|---|
| 576 | <term><command>pt_chown</command></term>
|
|---|
| 577 | <listitem>
|
|---|
| 578 | <para>A helper program for <command>grantpt</command> to set the owner,
|
|---|
| 579 | group and access permissions of a slave pseudo terminal</para>
|
|---|
| 580 | <indexterm zone="ch-system-glibc pt_chown">
|
|---|
| 581 | <primary sortas="b-pt_chown">pt_chown</primary>
|
|---|
| 582 | </indexterm>
|
|---|
| 583 | </listitem>
|
|---|
| 584 | </varlistentry>
|
|---|
| 585 |
|
|---|
| 586 | <varlistentry id="rpcgen">
|
|---|
| 587 | <term><command>rpcgen</command></term>
|
|---|
| 588 | <listitem>
|
|---|
| 589 | <para>Generates C code to implement the Remote Procedure Call (RPC)
|
|---|
| 590 | protocol</para>
|
|---|
| 591 | <indexterm zone="ch-system-glibc rpcgen">
|
|---|
| 592 | <primary sortas="b-rpcgen">rpcgen</primary>
|
|---|
| 593 | </indexterm>
|
|---|
| 594 | </listitem>
|
|---|
| 595 | </varlistentry>
|
|---|
| 596 |
|
|---|
| 597 | <varlistentry id="rpcinfo">
|
|---|
| 598 | <term><command>rpcinfo</command></term>
|
|---|
| 599 | <listitem>
|
|---|
| 600 | <para>Makes an RPC call to an RPC server</para>
|
|---|
| 601 | <indexterm zone="ch-system-glibc rpcinfo">
|
|---|
| 602 | <primary sortas="b-rpcinfo">rpcinfo</primary>
|
|---|
| 603 | </indexterm>
|
|---|
| 604 | </listitem>
|
|---|
| 605 | </varlistentry>
|
|---|
| 606 |
|
|---|
| 607 | <varlistentry id="sln">
|
|---|
| 608 | <term><command>sln</command></term>
|
|---|
| 609 | <listitem>
|
|---|
| 610 | <para>A statically linked <command>ln</command> program</para>
|
|---|
| 611 | <indexterm zone="ch-system-glibc sln">
|
|---|
| 612 | <primary sortas="b-sln">sln</primary>
|
|---|
| 613 | </indexterm>
|
|---|
| 614 | </listitem>
|
|---|
| 615 | </varlistentry>
|
|---|
| 616 |
|
|---|
| 617 | <varlistentry id="sprof">
|
|---|
| 618 | <term><command>sprof</command></term>
|
|---|
| 619 | <listitem>
|
|---|
| 620 | <para>Reads and displays shared object profiling data</para>
|
|---|
| 621 | <indexterm zone="ch-system-glibc sprof">
|
|---|
| 622 | <primary sortas="b-sprof">sprof</primary>
|
|---|
| 623 | </indexterm>
|
|---|
| 624 | </listitem>
|
|---|
| 625 | </varlistentry>
|
|---|
| 626 |
|
|---|
| 627 | <varlistentry id="tzselect">
|
|---|
| 628 | <term><command>tzselect</command></term>
|
|---|
| 629 | <listitem>
|
|---|
| 630 | <para>Asks the user about the location of the system and reports
|
|---|
| 631 | the corresponding time zone description</para>
|
|---|
| 632 | <indexterm zone="ch-system-glibc tzselect">
|
|---|
| 633 | <primary sortas="b-tzselect">tzselect</primary>
|
|---|
| 634 | </indexterm>
|
|---|
| 635 | </listitem>
|
|---|
| 636 | </varlistentry>
|
|---|
| 637 |
|
|---|
| 638 | <varlistentry id="xtrace">
|
|---|
| 639 | <term><command>xtrace</command></term>
|
|---|
| 640 | <listitem>
|
|---|
| 641 | <para>Traces the execution of a program by printing the currently
|
|---|
| 642 | executed function</para>
|
|---|
| 643 | <indexterm zone="ch-system-glibc xtrace">
|
|---|
| 644 | <primary sortas="b-xtrace">xtrace</primary>
|
|---|
| 645 | </indexterm>
|
|---|
| 646 | </listitem>
|
|---|
| 647 | </varlistentry>
|
|---|
| 648 |
|
|---|
| 649 | <varlistentry id="zdump">
|
|---|
| 650 | <term><command>zdump</command></term>
|
|---|
| 651 | <listitem>
|
|---|
| 652 | <para>The time zone dumper</para>
|
|---|
| 653 | <indexterm zone="ch-system-glibc zdump">
|
|---|
| 654 | <primary sortas="b-zdump">zdump</primary>
|
|---|
| 655 | </indexterm>
|
|---|
| 656 | </listitem>
|
|---|
| 657 | </varlistentry>
|
|---|
| 658 |
|
|---|
| 659 | <varlistentry id="zic">
|
|---|
| 660 | <term><command>zic</command></term>
|
|---|
| 661 | <listitem>
|
|---|
| 662 | <para>The time zone compiler</para>
|
|---|
| 663 | <indexterm zone="ch-system-glibc zic">
|
|---|
| 664 | <primary sortas="b-zic">zic</primary>
|
|---|
| 665 | </indexterm>
|
|---|
| 666 | </listitem>
|
|---|
| 667 | </varlistentry>
|
|---|
| 668 |
|
|---|
| 669 | <varlistentry id="ld.so">
|
|---|
| 670 | <term><filename class="libraryfile">ld.so</filename></term>
|
|---|
| 671 | <listitem>
|
|---|
| 672 | <para>The helper program for shared library executables</para>
|
|---|
| 673 | <indexterm zone="ch-system-glibc ld.so">
|
|---|
| 674 | <primary sortas="c-ld.so">ld.so</primary>
|
|---|
| 675 | </indexterm>
|
|---|
| 676 | </listitem>
|
|---|
| 677 | </varlistentry>
|
|---|
| 678 |
|
|---|
| 679 | <varlistentry id="libBrokenLocale">
|
|---|
| 680 | <term><filename class="libraryfile">libBrokenLocale</filename></term>
|
|---|
| 681 | <listitem>
|
|---|
| 682 | <para>Used internally by Glibc as a gross hack to get broken programs
|
|---|
| 683 | (e.g., some Motif applications) running. See comments in
|
|---|
| 684 | <filename>glibc-&glibc-version;/locale/broken_cur_max.c</filename>
|
|---|
| 685 | for more information</para>
|
|---|
| 686 | <indexterm zone="ch-system-glibc libBrokenLocale">
|
|---|
| 687 | <primary sortas="c-libBrokenLocale">libBrokenLocale</primary>
|
|---|
| 688 | </indexterm>
|
|---|
| 689 | </listitem>
|
|---|
| 690 | </varlistentry>
|
|---|
| 691 |
|
|---|
| 692 | <varlistentry id="libSegFault">
|
|---|
| 693 | <term><filename class="libraryfile">libSegFault</filename></term>
|
|---|
| 694 | <listitem>
|
|---|
| 695 | <para>The segmentation fault signal handler, used by
|
|---|
| 696 | <command>catchsegv</command></para>
|
|---|
| 697 | <indexterm zone="ch-system-glibc libSegFault">
|
|---|
| 698 | <primary sortas="c-libSegFault">libSegFault</primary>
|
|---|
| 699 | </indexterm>
|
|---|
| 700 | </listitem>
|
|---|
| 701 | </varlistentry>
|
|---|
| 702 |
|
|---|
| 703 | <varlistentry id="libanl">
|
|---|
| 704 | <term><filename class="libraryfile">libanl</filename></term>
|
|---|
| 705 | <listitem>
|
|---|
| 706 | <para>An asynchronous name lookup library</para>
|
|---|
| 707 | <indexterm zone="ch-system-glibc libanl">
|
|---|
| 708 | <primary sortas="c-libanl">libanl</primary>
|
|---|
| 709 | </indexterm>
|
|---|
| 710 | </listitem>
|
|---|
| 711 | </varlistentry>
|
|---|
| 712 |
|
|---|
| 713 | <varlistentry id="libbsd-compat">
|
|---|
| 714 | <term><filename class="libraryfile">libbsd-compat</filename></term>
|
|---|
| 715 | <listitem>
|
|---|
| 716 | <para>Provides the portability needed in order to run certain
|
|---|
| 717 | Berkeley Software Distribution (BSD) programs under Linux</para>
|
|---|
| 718 | <indexterm zone="ch-system-glibc libbsd-compat">
|
|---|
| 719 | <primary sortas="c-libbsd-compat">libbsd-compat</primary>
|
|---|
| 720 | </indexterm>
|
|---|
| 721 | </listitem>
|
|---|
| 722 | </varlistentry>
|
|---|
| 723 |
|
|---|
| 724 | <varlistentry id="libc">
|
|---|
| 725 | <term><filename class="libraryfile">libc</filename></term>
|
|---|
| 726 | <listitem>
|
|---|
| 727 | <para>The main C library</para>
|
|---|
| 728 | <indexterm zone="ch-system-glibc libc">
|
|---|
| 729 | <primary sortas="c-libc">libc</primary>
|
|---|
| 730 | </indexterm>
|
|---|
| 731 | </listitem>
|
|---|
| 732 | </varlistentry>
|
|---|
| 733 |
|
|---|
| 734 | <varlistentry id="libcidn">
|
|---|
| 735 | <term><filename class="libraryfile">libcidn</filename></term>
|
|---|
| 736 | <listitem>
|
|---|
| 737 | <para>Used internally by Glibc for handling internationalized domain
|
|---|
| 738 | names in the <function>getaddrinfo()</function> function</para>
|
|---|
| 739 | <indexterm zone="ch-system-glibc libcidn">
|
|---|
| 740 | <primary sortas="c-libcidn">libcidn</primary>
|
|---|
| 741 | </indexterm>
|
|---|
| 742 | </listitem>
|
|---|
| 743 | </varlistentry>
|
|---|
| 744 |
|
|---|
| 745 | <varlistentry id="libcrypt">
|
|---|
| 746 | <term><filename class="libraryfile">libcrypt</filename></term>
|
|---|
| 747 | <listitem>
|
|---|
| 748 | <para>The cryptography library</para>
|
|---|
| 749 | <indexterm zone="ch-system-glibc libcrypt">
|
|---|
| 750 | <primary sortas="c-libcrypt">libcrypt</primary>
|
|---|
| 751 | </indexterm>
|
|---|
| 752 | </listitem>
|
|---|
| 753 | </varlistentry>
|
|---|
| 754 |
|
|---|
| 755 | <varlistentry id="libdl">
|
|---|
| 756 | <term><filename class="libraryfile">libdl</filename></term>
|
|---|
| 757 | <listitem>
|
|---|
| 758 | <para>The dynamic linking interface library</para>
|
|---|
| 759 | <indexterm zone="ch-system-glibc libdl">
|
|---|
| 760 | <primary sortas="c-libdl">libdl</primary>
|
|---|
| 761 | </indexterm>
|
|---|
| 762 | </listitem>
|
|---|
| 763 | </varlistentry>
|
|---|
| 764 |
|
|---|
| 765 | <varlistentry id="libg">
|
|---|
| 766 | <term><filename class="libraryfile">libg</filename></term>
|
|---|
| 767 | <listitem>
|
|---|
| 768 | <para>Dummy library containing no functions. Previously was a runtime
|
|---|
| 769 | library for <command>g++</command></para>
|
|---|
| 770 | <indexterm zone="ch-system-glibc libg">
|
|---|
| 771 | <primary sortas="c-libg">libg</primary>
|
|---|
| 772 | </indexterm>
|
|---|
| 773 | </listitem>
|
|---|
| 774 | </varlistentry>
|
|---|
| 775 |
|
|---|
| 776 | <varlistentry id="libieee">
|
|---|
| 777 | <term><filename class="libraryfile">libieee</filename></term>
|
|---|
| 778 | <listitem>
|
|---|
| 779 | <para>Linking in this module forces error handling rules for math
|
|---|
| 780 | functions as defined by the Institute of Electrical and Electronic
|
|---|
| 781 | Engineers (IEEE). The default is POSIX.1 error handling</para>
|
|---|
| 782 | <indexterm zone="ch-system-glibc libieee">
|
|---|
| 783 | <primary sortas="c-libieee">libieee</primary>
|
|---|
| 784 | </indexterm>
|
|---|
| 785 | </listitem>
|
|---|
| 786 | </varlistentry>
|
|---|
| 787 |
|
|---|
| 788 | <varlistentry id="libm">
|
|---|
| 789 | <term><filename class="libraryfile">libm</filename></term>
|
|---|
| 790 | <listitem>
|
|---|
| 791 | <para>The mathematical library</para>
|
|---|
| 792 | <indexterm zone="ch-system-glibc libm">
|
|---|
| 793 | <primary sortas="c-libm">libm</primary>
|
|---|
| 794 | </indexterm>
|
|---|
| 795 | </listitem>
|
|---|
| 796 | </varlistentry>
|
|---|
| 797 |
|
|---|
| 798 | <varlistentry id="libmcheck">
|
|---|
| 799 | <term><filename class="libraryfile">libmcheck</filename></term>
|
|---|
| 800 | <listitem>
|
|---|
| 801 | <para>Turns on memory allocation checking when linked to</para>
|
|---|
| 802 | <indexterm zone="ch-system-glibc libmcheck">
|
|---|
| 803 | <primary sortas="c-libmcheck">libmcheck</primary>
|
|---|
| 804 | </indexterm>
|
|---|
| 805 | </listitem>
|
|---|
| 806 | </varlistentry>
|
|---|
| 807 |
|
|---|
| 808 | <varlistentry id="libmemusage">
|
|---|
| 809 | <term><filename class="libraryfile">libmemusage</filename></term>
|
|---|
| 810 | <listitem>
|
|---|
| 811 | <para>Used by <command>memusage</command> to help collect
|
|---|
| 812 | information about the memory usage of a program</para>
|
|---|
| 813 | <indexterm zone="ch-system-glibc libmemusage">
|
|---|
| 814 | <primary sortas="c-libmemusage">libmemusage</primary>
|
|---|
| 815 | </indexterm>
|
|---|
| 816 | </listitem>
|
|---|
| 817 | </varlistentry>
|
|---|
| 818 |
|
|---|
| 819 | <varlistentry id="libnsl">
|
|---|
| 820 | <term><filename class="libraryfile">libnsl</filename></term>
|
|---|
| 821 | <listitem>
|
|---|
| 822 | <para>The network services library</para>
|
|---|
| 823 | <indexterm zone="ch-system-glibc libnsl">
|
|---|
| 824 | <primary sortas="c-libnsl">libnsl</primary>
|
|---|
| 825 | </indexterm>
|
|---|
| 826 | </listitem>
|
|---|
| 827 | </varlistentry>
|
|---|
| 828 |
|
|---|
| 829 | <varlistentry id="libnss">
|
|---|
| 830 | <term><filename class="libraryfile">libnss</filename></term>
|
|---|
| 831 | <listitem>
|
|---|
| 832 | <para>The Name Service Switch libraries, containing functions for
|
|---|
| 833 | resolving host names, user names, group names, aliases, services,
|
|---|
| 834 | protocols, etc.</para>
|
|---|
| 835 | <indexterm zone="ch-system-glibc libnss">
|
|---|
| 836 | <primary sortas="c-libnss">libnss</primary>
|
|---|
| 837 | </indexterm>
|
|---|
| 838 | </listitem>
|
|---|
| 839 | </varlistentry>
|
|---|
| 840 |
|
|---|
| 841 | <varlistentry id="libpcprofile">
|
|---|
| 842 | <term><filename class="libraryfile">libpcprofile</filename></term>
|
|---|
| 843 | <listitem>
|
|---|
| 844 | <para>Contains profiling functions used to track the amount of CPU
|
|---|
| 845 | time spent in specific source code lines</para>
|
|---|
| 846 | <indexterm zone="ch-system-glibc libpcprofile">
|
|---|
| 847 | <primary sortas="c-libpcprofile">libpcprofile</primary>
|
|---|
| 848 | </indexterm>
|
|---|
| 849 | </listitem>
|
|---|
| 850 | </varlistentry>
|
|---|
| 851 |
|
|---|
| 852 | <varlistentry id="libpthread">
|
|---|
| 853 | <term><filename class="libraryfile">libpthread</filename></term>
|
|---|
| 854 | <listitem>
|
|---|
| 855 | <para>The POSIX threads library</para>
|
|---|
| 856 | <indexterm zone="ch-system-glibc libpthread">
|
|---|
| 857 | <primary sortas="c-libpthread">libpthread</primary>
|
|---|
| 858 | </indexterm>
|
|---|
| 859 | </listitem>
|
|---|
| 860 | </varlistentry>
|
|---|
| 861 |
|
|---|
| 862 | <varlistentry id="libresolv">
|
|---|
| 863 | <term><filename class="libraryfile">libresolv</filename></term>
|
|---|
| 864 | <listitem>
|
|---|
| 865 | <para>Contains functions for creating, sending, and interpreting
|
|---|
| 866 | packets to the Internet domain name servers</para>
|
|---|
| 867 | <indexterm zone="ch-system-glibc libresolv">
|
|---|
| 868 | <primary sortas="c-libresolv">libresolv</primary>
|
|---|
| 869 | </indexterm>
|
|---|
| 870 | </listitem>
|
|---|
| 871 | </varlistentry>
|
|---|
| 872 |
|
|---|
| 873 | <varlistentry id="librpcsvc">
|
|---|
| 874 | <term><filename class="libraryfile">librpcsvc</filename></term>
|
|---|
| 875 | <listitem>
|
|---|
| 876 | <para>Contains functions providing miscellaneous RPC services</para>
|
|---|
| 877 | <indexterm zone="ch-system-glibc librpcsvc">
|
|---|
| 878 | <primary sortas="c-librpcsvc">librpcsvc</primary>
|
|---|
| 879 | </indexterm>
|
|---|
| 880 | </listitem>
|
|---|
| 881 | </varlistentry>
|
|---|
| 882 |
|
|---|
| 883 | <varlistentry id="librt">
|
|---|
| 884 | <term><filename class="libraryfile">librt</filename></term>
|
|---|
| 885 | <listitem>
|
|---|
| 886 | <para>Contains functions providing most of the interfaces specified
|
|---|
| 887 | by the POSIX.1b Realtime Extension</para>
|
|---|
| 888 | <indexterm zone="ch-system-glibc librt">
|
|---|
| 889 | <primary sortas="c-librt">librt</primary>
|
|---|
| 890 | </indexterm>
|
|---|
| 891 | </listitem>
|
|---|
| 892 | </varlistentry>
|
|---|
| 893 |
|
|---|
| 894 | <varlistentry id="libthread_db">
|
|---|
| 895 | <term><filename class="libraryfile">libthread_db</filename></term>
|
|---|
| 896 | <listitem>
|
|---|
| 897 | <para>Contains functions useful for building debuggers for
|
|---|
| 898 | multi-threaded programs</para>
|
|---|
| 899 | <indexterm zone="ch-system-glibc libthread_db">
|
|---|
| 900 | <primary sortas="c-libthread_db">libthread_db</primary>
|
|---|
| 901 | </indexterm>
|
|---|
| 902 | </listitem>
|
|---|
| 903 | </varlistentry>
|
|---|
| 904 |
|
|---|
| 905 | <varlistentry id="libutil">
|
|---|
| 906 | <term><filename class="libraryfile">libutil</filename></term>
|
|---|
| 907 | <listitem>
|
|---|
| 908 | <para>Contains code for <quote>standard</quote> functions used in
|
|---|
| 909 | many different Unix utilities</para>
|
|---|
| 910 | <indexterm zone="ch-system-glibc libutil">
|
|---|
| 911 | <primary sortas="c-libutil">libutil</primary>
|
|---|
| 912 | </indexterm>
|
|---|
| 913 | </listitem>
|
|---|
| 914 | </varlistentry>
|
|---|
| 915 |
|
|---|
| 916 | </variablelist>
|
|---|
| 917 |
|
|---|
| 918 | </sect2>
|
|---|
| 919 |
|
|---|
| 920 | </sect1>
|
|---|
