mirror of
https://git.linuxfromscratch.org/lfs.git
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bb189b08be
Thanks to Ken Moffat for identifying the proplem and the fix. Fixed Ncurses and Perl build with GCC 5. Thanks to Ken Moffat and Douglas R. Reno for providing the patches. Updated to GCC-5.1.0. Imported changes from systemd version. git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@10903 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
940 lines
35 KiB
XML
940 lines
35 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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%general-entities;
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]>
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<sect1 id="ch-system-glibc" role="wrap">
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<?dbhtml filename="glibc.html"?>
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<sect1info condition="script">
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<productname>glibc</productname>
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<productnumber>&glibc-version;</productnumber>
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<address>&glibc-url;</address>
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</sect1info>
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<title>Glibc-&glibc-version;</title>
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<indexterm zone="ch-system-glibc">
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<primary sortas="a-Glibc">Glibc</primary>
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</indexterm>
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<sect2 role="package">
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<title/>
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<para>The Glibc package contains the main C library. This library provides
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the basic routines for allocating memory, searching directories, opening and
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closing files, reading and writing files, string handling, pattern matching,
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arithmetic, and so on.</para>
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<segmentedlist>
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<segtitle>&buildtime;</segtitle>
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<segtitle>&diskspace;</segtitle>
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<seglistitem>
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<seg>&glibc-ch6-sbu;</seg>
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<seg>&glibc-ch6-du;</seg>
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</seglistitem>
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</segmentedlist>
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</sect2>
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<sect2 role="installation">
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<title>Installation of Glibc</title>
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<note>
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<para>Some packages outside of LFS suggest installing GNU libiconv in
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order to translate data from one encoding to another. The project's
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home page (<ulink url="http://www.gnu.org/software/libiconv/"/>) says
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<quote>This library provides an <function>iconv()</function>
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implementation, for use on systems which don't have one, or whose
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implementation cannot convert from/to Unicode.</quote> Glibc provides
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an <function>iconv()</function> implementation and can convert from/to
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Unicode, therefore libiconv is not required on an LFS system.</para>
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</note>
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<para>Some of the Glibc programs use non-FHS compilant
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<filename class="directory">/var/db</filename> directory to store
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their runtime data. Apply the following patch to make such programs
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store their runtime data in the FHS-compliant locations:</para>
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<screen><userinput remap="pre">patch -Np1 -i ../&glibc-fhs-patch;</userinput></screen>
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<para>The Glibc build system is self-contained and will install
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perfectly, even though the compiler specs file and linker are still
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pointing at <filename class="directory">/tools</filename>. The specs
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and linker cannot be adjusted before the Glibc install because the
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Glibc autoconf tests would give false results and defeat the goal
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of achieving a clean build.</para>
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<para>Fix a regression in the package that affects 32-bit architectures:</para>
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<screen><userinput remap="pre">sed -e '/ia32/s/^/1:/' \
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-e '/SSE2/s/^1://' \
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-i sysdeps/i386/i686/multiarch/mempcpy_chk.S</userinput></screen>
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<para>Fix a potential security issue identified upstream:</para>
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<screen><userinput remap="pre">sed -i '/glibc.*pad/{i\ buflen = buflen > pad ? buflen - pad : 0;
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s/ + pad//}' resolv/nss_dns/dns-host.c</userinput></screen>
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<para>Fix a test case that fails when built using GCC 5:</para>
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<screen><userinput remap="pre">sed -e '/tst-audit2-ENV/i CFLAGS-tst-audit2.c += -fno-builtin' \
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-i elf/Makefile</userinput></screen>
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<para>The Glibc documentation recommends building Glibc outside of the source
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directory in a dedicated build directory:</para>
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<screen><userinput remap="pre">mkdir -v ../glibc-build
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cd ../glibc-build</userinput></screen>
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<para>Prepare Glibc for compilation:</para>
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<screen><userinput remap="configure">../glibc-&glibc-version;/configure \
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--prefix=/usr \
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--disable-profile \
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--enable-kernel=&min-kernel; \
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--enable-obsolete-rpc</userinput></screen>
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<para>Compile the package:</para>
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<screen><userinput remap="make">make</userinput></screen>
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<important>
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<para>In this section, the test suite for Glibc is considered critical.
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Do not skip it under any circumstance.</para>
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</important>
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<para>Generally a few tests do not pass, but you can generally ignore
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any of the test failures listed below. Now test the build results:</para>
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<screen><userinput remap="test">make check</userinput></screen>
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<para>You will probably see some test failures. The Glibc test suite is
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somewhat dependent on the host system. This is a list of the most common
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issues seen for this version of LFS:</para>
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<itemizedlist>
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<listitem>
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<para>The <emphasis>tst/tst-cputimer1</emphasis> and
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<emphasis>rt/tst-cpuclock2</emphasis> tests have been known to
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fail. The reason is not completely understood, but indications are
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that minor timing issues can trigger these failures.</para>
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</listitem>
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<listitem>
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<para>The math tests sometimes fail when running on
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systems where the CPU is not a relatively new genuine Intel or
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authentic AMD processor.</para>
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</listitem>
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<!--
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<listitem>
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<para>When running on older and slower hardware or on systems under
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load, some tests can fail because of test timeouts being exceeded.
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Modifying the make check command to set a TIMEOUTFACTOR is reported to
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help eliminate these errors (e.g. <command>TIMEOUTFACTOR=16
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make -k check</command>).</para>
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</listitem>
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-->
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<listitem>
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<para>posix/tst-getaddrinfo4 and posix/tst-getaddrinfo5 will always fail
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due to not having a network connection when the tests are run.</para>
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</listitem>
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<!--
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<listitem>
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<para>libio/tst-ftell-partial-wide.out fails because it needs a locale
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that has not yet been generated.</para>
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</listitem>
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-->
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<listitem>
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<para>Other tests known to fail on some architectures are
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malloc/tst-malloc-usable and nptl/tst-cleanupx4. </para>
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</listitem>
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</itemizedlist>
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<para>Though it is a harmless message, the install stage of Glibc will
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complain about the absence of <filename>/etc/ld.so.conf</filename>.
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Prevent this warning with:</para>
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<screen><userinput remap="install">touch /etc/ld.so.conf</userinput></screen>
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<para>Install the package:</para>
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<screen><userinput remap="install">make install</userinput></screen>
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<para>Install the configuration file and runtime directory for
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<command>nscd</command>:</para>
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<screen><userinput remap="install">cp -v ../glibc-&glibc-version;/nscd/nscd.conf /etc/nscd.conf
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mkdir -pv /var/cache/nscd</userinput></screen>
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<para>The locales that can make the system respond in a different language
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were not installed by the above command. None of the locales are required,
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but if some of them are missing, test suites of the future packages would
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skip important testcases.</para>
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<para>Individual locales can be installed using the
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<command>localedef</command> program. E.g., the first
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<command>localedef</command> command below combines the
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<filename>/usr/share/i18n/locales/cs_CZ</filename>
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charset-independent locale definition with the
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<filename>/usr/share/i18n/charmaps/UTF-8.gz</filename>
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charmap definition and appends the result to the
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<filename>/usr/lib/locale/locale-archive</filename> file.
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The following instructions will install the minimum set of
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locales necessary for the optimal coverage of tests:</para>
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<screen role="nodump"><userinput remap="locale-test">mkdir -pv /usr/lib/locale
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localedef -i cs_CZ -f UTF-8 cs_CZ.UTF-8
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localedef -i de_DE -f ISO-8859-1 de_DE
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localedef -i de_DE@euro -f ISO-8859-15 de_DE@euro
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localedef -i de_DE -f UTF-8 de_DE.UTF-8
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localedef -i en_GB -f UTF-8 en_GB.UTF-8
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localedef -i en_HK -f ISO-8859-1 en_HK
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localedef -i en_PH -f ISO-8859-1 en_PH
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localedef -i en_US -f ISO-8859-1 en_US
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localedef -i en_US -f UTF-8 en_US.UTF-8
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localedef -i es_MX -f ISO-8859-1 es_MX
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localedef -i fa_IR -f UTF-8 fa_IR
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localedef -i fr_FR -f ISO-8859-1 fr_FR
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localedef -i fr_FR@euro -f ISO-8859-15 fr_FR@euro
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localedef -i fr_FR -f UTF-8 fr_FR.UTF-8
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localedef -i it_IT -f ISO-8859-1 it_IT
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localedef -i it_IT -f UTF-8 it_IT.UTF-8
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localedef -i ja_JP -f EUC-JP ja_JP
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localedef -i ru_RU -f KOI8-R ru_RU.KOI8-R
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localedef -i ru_RU -f UTF-8 ru_RU.UTF-8
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localedef -i tr_TR -f UTF-8 tr_TR.UTF-8
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localedef -i zh_CN -f GB18030 zh_CN.GB18030</userinput></screen>
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<para>In addition, install the locale for your own country, language and
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character set.</para>
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<para>Alternatively, install all locales listed in the
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<filename>glibc-&glibc-version;/localedata/SUPPORTED</filename> file
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(it includes every locale listed above and many more) at once with the
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following time-consuming command:</para>
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<screen><userinput remap="locale-full">make localedata/install-locales</userinput></screen>
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<para>Then use the <command>localedef</command> command to create and
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install locales not listed in the
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<filename>glibc-&glibc-version;/localedata/SUPPORTED</filename> file
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in the unlikely case you need them.</para>
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</sect2>
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<sect2 id="conf-glibc" role="configuration">
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<title>Configuring Glibc</title>
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<indexterm zone="conf-glibc">
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<primary sortas="e-/etc/nsswitch.conf">/etc/nsswitch.conf</primary>
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</indexterm>
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<indexterm zone="conf-glibc">
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<primary sortas="e-/etc/localtime">/etc/localtime</primary>
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</indexterm>
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<sect3>
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<title>Adding nsswitch.conf</title>
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<para>The <filename>/etc/nsswitch.conf</filename> file needs to be created
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because the Glibc defaults do not work well in a networked environment.
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</para>
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<para>Create a new file <filename>/etc/nsswitch.conf</filename> by running the
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following:</para>
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<screen><userinput>cat > /etc/nsswitch.conf << "EOF"
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<literal># Begin /etc/nsswitch.conf
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passwd: files
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group: files
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shadow: files
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hosts: files dns
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networks: files
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protocols: files
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services: files
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ethers: files
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rpc: files
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# End /etc/nsswitch.conf</literal>
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EOF</userinput></screen>
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</sect3>
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<sect3>
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<title>Adding time zone data</title>
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<para>Install and set up the timezone data with the following:</para>
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<screen><userinput>tar -xf ../tzdata&tzdata-version;.tar.gz
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ZONEINFO=/usr/share/zoneinfo
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mkdir -pv $ZONEINFO/{posix,right}
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for tz in etcetera southamerica northamerica europe africa antarctica \
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asia australasia backward pacificnew systemv; do
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zic -L /dev/null -d $ZONEINFO -y "sh yearistype.sh" ${tz}
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zic -L /dev/null -d $ZONEINFO/posix -y "sh yearistype.sh" ${tz}
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zic -L leapseconds -d $ZONEINFO/right -y "sh yearistype.sh" ${tz}
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done
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cp -v zone.tab zone1970.tab iso3166.tab $ZONEINFO
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zic -d $ZONEINFO -p America/New_York
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unset ZONEINFO</userinput></screen>
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<variablelist>
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<title>The meaning of the zic commands:</title>
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<varlistentry>
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<term><parameter>zic -L /dev/null ...</parameter></term>
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<listitem>
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<para>This creates posix timezones, without any leap seconds. It is
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conventional to put these in both
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<filename class="directory">zoneinfo</filename> and
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<filename class="directory">zoneinfo/posix</filename>. It is
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necessary to put the POSIX timezones in
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<filename class="directory">zoneinfo</filename>, otherwise various
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test-suites will report errors. On an embedded system, where space is
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tight and you do not intend to ever update the timezones, you could save
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1.9MB by not using the <filename class="directory">posix</filename>
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directory, but some applications or test-suites might produce some
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failures.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>zic -L leapseconds ...</parameter></term>
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<listitem>
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<para>This creates right timezones, including leap seconds. On an
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embedded system, where space is tight and you do not intend to
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ever update the timezones, or care about the correct time, you could
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save 1.9MB by omitting the <filename class="directory">right</filename>
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directory.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>zic ... -p ...</parameter></term>
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<listitem>
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<para>This creates the <filename>posixrules</filename> file. We use
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New York because POSIX requires the daylight savings time rules
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to be in accordance with US rules.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>One way to determine the local time zone is to run the following
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script:</para>
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<screen role="nodump"><userinput>tzselect</userinput></screen>
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<para>After answering a few questions about the location, the script will
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output the name of the time zone (e.g.,
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<emphasis>America/Edmonton</emphasis>). There are also some other possible
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timezones listed in <filename
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class='directory'>/usr/share/zoneinfo</filename> such as
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<emphasis>Canada/Eastern</emphasis> or <emphasis>EST5EDT</emphasis> that
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are not identified by the script but can be used.</para>
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<para>Then create the <filename>/etc/localtime</filename> file by
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running:</para>
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<screen><userinput>cp -v /usr/share/zoneinfo/<replaceable><xxx></replaceable> /etc/localtime</userinput></screen>
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<para>Replace <replaceable><xxx></replaceable> with the name of the
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time zone selected (e.g., Canada/Eastern).</para>
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</sect3>
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<sect3 id="conf-ld" role="configuration">
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<title>Configuring the Dynamic Loader</title>
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<indexterm zone="conf-ld">
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<primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary>
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</indexterm>
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<para>By default, the dynamic loader (<filename
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class="libraryfile">/lib/ld-linux.so.2</filename>) searches through
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<filename class="directory">/lib</filename> and <filename
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class="directory">/usr/lib</filename> for dynamic libraries that are
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needed by programs as they are run. However, if there are libraries in
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directories other than <filename class="directory">/lib</filename> and
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<filename class="directory">/usr/lib</filename>, these need to be added
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to the <filename>/etc/ld.so.conf</filename> file in order for the
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dynamic loader to find them. Two directories that are commonly known
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to contain additional libraries are <filename
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class="directory">/usr/local/lib</filename> and <filename
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class="directory">/opt/lib</filename>, so add those directories to the
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dynamic loader's search path.</para>
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<para>Create a new file <filename>/etc/ld.so.conf</filename> by running the
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following:</para>
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<screen><userinput>cat > /etc/ld.so.conf << "EOF"
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<literal># Begin /etc/ld.so.conf
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/usr/local/lib
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/opt/lib
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</literal>
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EOF</userinput></screen>
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<para>If desired, the dynamic loader can also search a directory and
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include the contents of files found there. Generally the files in
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this include directory are one line specifying the desired library path.
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To add this capability run the following commands:</para>
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<screen role="nodump"><userinput>cat >> /etc/ld.so.conf << "EOF"
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<literal># Add an include directory
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include /etc/ld.so.conf.d/*.conf
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</literal>
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EOF
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mkdir -pv /etc/ld.so.conf.d</userinput></screen>
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</sect3>
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</sect2>
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<sect2 id="contents-glibc" role="content">
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<title>Contents of Glibc</title>
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<segmentedlist>
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<segtitle>Installed programs</segtitle>
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<segtitle>Installed libraries</segtitle>
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<segtitle>Installed directories</segtitle>
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<seglistitem>
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<seg>catchsegv, gencat, getconf, getent, iconv, iconvconfig, ldconfig,
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ldd, lddlibc4, locale, localedef, makedb, mtrace, nscd, pcprofiledump,
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pldd, rpcgen, sln, sotruss, sprof, tzselect, xtrace,
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zdump, and zic</seg>
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<seg>ld-&glibc-version;.so, libBrokenLocale.{a,so}, libSegFault.so, libanl.{a,so},
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libc.{a,so}, libc_nonshared.a, libcidn.so,
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libcrypt.{a,so}, libdl.{a,so}, libg.a, libieee.a, libm.{a,so},
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libmcheck.a, libmemusage.so, libnsl.{a,so}, libnss_compat.so,
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libnss_dns.so, libnss_files.so, libnss_hesiod.so, libnss_nis.so,
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libnss_nisplus.so, libpcprofile.so, libpthread.{a,so},
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libpthread_nonshared.a, libresolv.{a,so}, librpcsvc.a, librt.{a,so},
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libthread_db.so, and libutil.{a,so}</seg>
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<seg>/usr/include/arpa, /usr/include/bits, /usr/include/gnu,
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/usr/include/net, /usr/include/netash, /usr/include/netatalk,
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/usr/include/netax25, /usr/include/neteconet, /usr/include/netinet,
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/usr/include/netipx, /usr/include/netiucv, /usr/include/netpacket,
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/usr/include/netrom, /usr/include/netrose, /usr/include/nfs,
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/usr/include/protocols, /usr/include/rpc, /usr/include/rpcsvc,
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/usr/include/sys, /usr/lib/audit, /usr/lib/gconv, /usr/lib/locale,
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/usr/libexec/getconf, /usr/share/i18n, /usr/share/zoneinfo,
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|
/var/cache/nscd, and /var/lib/nss_db</seg>
|
|
</seglistitem>
|
|
</segmentedlist>
|
|
|
|
<variablelist>
|
|
<bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
|
<?dbfo list-presentation="list"?>
|
|
<?dbhtml list-presentation="table"?>
|
|
|
|
<varlistentry id="catchsegv">
|
|
<term><command>catchsegv</command></term>
|
|
<listitem>
|
|
<para>Can be used to create a stack trace when a program
|
|
terminates with a segmentation fault</para>
|
|
<indexterm zone="ch-system-glibc catchsegv">
|
|
<primary sortas="b-catchsegv">catchsegv</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="gencat">
|
|
<term><command>gencat</command></term>
|
|
<listitem>
|
|
<para>Generates message catalogues</para>
|
|
<indexterm zone="ch-system-glibc gencat">
|
|
<primary sortas="b-gencat">gencat</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="getconf">
|
|
<term><command>getconf</command></term>
|
|
<listitem>
|
|
<para>Displays the system configuration values for file system
|
|
specific variables</para>
|
|
<indexterm zone="ch-system-glibc getconf">
|
|
<primary sortas="b-getconf">getconf</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="getent">
|
|
<term><command>getent</command></term>
|
|
<listitem>
|
|
<para>Gets entries from an administrative database</para>
|
|
<indexterm zone="ch-system-glibc getent">
|
|
<primary sortas="b-getent">getent</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="iconv">
|
|
<term><command>iconv</command></term>
|
|
<listitem>
|
|
<para>Performs character set conversion</para>
|
|
<indexterm zone="ch-system-glibc iconv">
|
|
<primary sortas="b-iconv">iconv</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="iconvconfig">
|
|
<term><command>iconvconfig</command></term>
|
|
<listitem>
|
|
<para>Creates fastloading <command>iconv</command> module configuration
|
|
files</para>
|
|
<indexterm zone="ch-system-glibc iconvconfig">
|
|
<primary sortas="b-iconvconfig">iconvconfig</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="ldconfig">
|
|
<term><command>ldconfig</command></term>
|
|
<listitem>
|
|
<para>Configures the dynamic linker runtime bindings</para>
|
|
<indexterm zone="ch-system-glibc ldconfig">
|
|
<primary sortas="b-ldconfig">ldconfig</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="ldd">
|
|
<term><command>ldd</command></term>
|
|
<listitem>
|
|
<para>Reports which shared libraries are required
|
|
by each given program or shared library</para>
|
|
<indexterm zone="ch-system-glibc ldd">
|
|
<primary sortas="b-ldd">ldd</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="lddlibc4">
|
|
<term><command>lddlibc4</command></term>
|
|
<listitem>
|
|
<para>Assists <command>ldd</command> with object files</para>
|
|
<indexterm zone="ch-system-glibc lddlibc4">
|
|
<primary sortas="b-lddlibc4">lddlibc4</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="locale">
|
|
<term><command>locale</command></term>
|
|
<listitem>
|
|
<para>Prints various information about the current locale</para>
|
|
<indexterm zone="ch-system-glibc locale">
|
|
<primary sortas="b-locale">locale</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="localedef">
|
|
<term><command>localedef</command></term>
|
|
<listitem>
|
|
<para>Compiles locale specifications</para>
|
|
<indexterm zone="ch-system-glibc localedef">
|
|
<primary sortas="b-localedef">localedef</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="makedb">
|
|
<term><command>makedb</command></term>
|
|
<listitem>
|
|
<para>Creates a simple database from textual input</para>
|
|
<indexterm zone="ch-system-glibc makedb">
|
|
<primary sortas="b-makedb">makedb</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="mtrace">
|
|
<term><command>mtrace</command></term>
|
|
<listitem>
|
|
<para>Reads and interprets a memory trace file and displays a summary
|
|
in human-readable format</para>
|
|
<indexterm zone="ch-system-glibc mtrace">
|
|
<primary sortas="b-mtrace">mtrace</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="nscd">
|
|
<term><command>nscd</command></term>
|
|
<listitem>
|
|
<para>A daemon that provides a cache for the most common name
|
|
service requests</para>
|
|
<indexterm zone="ch-system-glibc nscd">
|
|
<primary sortas="b-nscd">nscd</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="pcprofiledump">
|
|
<term><command>pcprofiledump</command></term>
|
|
<listitem>
|
|
<para>Dumps information generated by PC profiling</para>
|
|
<indexterm zone="ch-system-glibc pcprofiledump">
|
|
<primary sortas="b-pcprofiledump">pcprofiledump</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="pldd">
|
|
<term><command>pldd</command></term>
|
|
<listitem>
|
|
<para>Lists dynamic shared objects used by running processes</para>
|
|
<indexterm zone="ch-system-glibc pldd">
|
|
<primary sortas="b-pldd">pldd</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
<!--
|
|
<varlistentry id="pt_chown">
|
|
<term><command>pt_chown</command></term>
|
|
<listitem>
|
|
<para>A helper program for <command>grantpt</command> to set the owner,
|
|
group and access permissions of a slave pseudo terminal</para>
|
|
<indexterm zone="ch-system-glibc pt_chown">
|
|
<primary sortas="b-pt_chown">pt_chown</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
-->
|
|
<varlistentry id="rpcgen">
|
|
<term><command>rpcgen</command></term>
|
|
<listitem>
|
|
<para>Generates C code to implement the Remote Procedure Call (RPC)
|
|
protocol</para>
|
|
<indexterm zone="ch-system-glibc rpcgen">
|
|
<primary sortas="b-rpcgen">rpcgen</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="sln">
|
|
<term><command>sln</command></term>
|
|
<listitem>
|
|
<para>A statically linked <command>ln</command> program</para>
|
|
<indexterm zone="ch-system-glibc sln">
|
|
<primary sortas="b-sln">sln</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="sotruss">
|
|
<term><command>sotruss</command></term>
|
|
<listitem>
|
|
<para>Traces shared library procedure calls of a specified command</para>
|
|
<indexterm zone="ch-system-glibc sotruss">
|
|
<primary sortas="b-sotruss">sotruss</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="sprof">
|
|
<term><command>sprof</command></term>
|
|
<listitem>
|
|
<para>Reads and displays shared object profiling data</para>
|
|
<indexterm zone="ch-system-glibc sprof">
|
|
<primary sortas="b-sprof">sprof</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="tzselect">
|
|
<term><command>tzselect</command></term>
|
|
<listitem>
|
|
<para>Asks the user about the location of the system and reports
|
|
the corresponding time zone description</para>
|
|
<indexterm zone="ch-system-glibc tzselect">
|
|
<primary sortas="b-tzselect">tzselect</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="xtrace">
|
|
<term><command>xtrace</command></term>
|
|
<listitem>
|
|
<para>Traces the execution of a program by printing the currently
|
|
executed function</para>
|
|
<indexterm zone="ch-system-glibc xtrace">
|
|
<primary sortas="b-xtrace">xtrace</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="zdump">
|
|
<term><command>zdump</command></term>
|
|
<listitem>
|
|
<para>The time zone dumper</para>
|
|
<indexterm zone="ch-system-glibc zdump">
|
|
<primary sortas="b-zdump">zdump</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="zic">
|
|
<term><command>zic</command></term>
|
|
<listitem>
|
|
<para>The time zone compiler</para>
|
|
<indexterm zone="ch-system-glibc zic">
|
|
<primary sortas="b-zic">zic</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="ld.so">
|
|
<term><filename class="libraryfile">ld-&glibc-version;.so</filename></term>
|
|
<listitem>
|
|
<para>The helper program for shared library executables</para>
|
|
<indexterm zone="ch-system-glibc ld.so">
|
|
<primary sortas="c-ld.so">ld-&glibc-version;.so</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libBrokenLocale">
|
|
<term><filename class="libraryfile">libBrokenLocale</filename></term>
|
|
<listitem>
|
|
<para>Used internally by Glibc as a gross hack to get broken programs
|
|
(e.g., some Motif applications) running. See comments in
|
|
<filename>glibc-&glibc-version;/locale/broken_cur_max.c</filename>
|
|
for more information</para>
|
|
<indexterm zone="ch-system-glibc libBrokenLocale">
|
|
<primary sortas="c-libBrokenLocale">libBrokenLocale</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libSegFault">
|
|
<term><filename class="libraryfile">libSegFault</filename></term>
|
|
<listitem>
|
|
<para>The segmentation fault signal handler, used by
|
|
<command>catchsegv</command></para>
|
|
<indexterm zone="ch-system-glibc libSegFault">
|
|
<primary sortas="c-libSegFault">libSegFault</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libanl">
|
|
<term><filename class="libraryfile">libanl</filename></term>
|
|
<listitem>
|
|
<para>An asynchronous name lookup library</para>
|
|
<indexterm zone="ch-system-glibc libanl">
|
|
<primary sortas="c-libanl">libanl</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libc">
|
|
<term><filename class="libraryfile">libc</filename></term>
|
|
<listitem>
|
|
<para>The main C library</para>
|
|
<indexterm zone="ch-system-glibc libc">
|
|
<primary sortas="c-libc">libc</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libcidn">
|
|
<term><filename class="libraryfile">libcidn</filename></term>
|
|
<listitem>
|
|
<para>Used internally by Glibc for handling internationalized domain
|
|
names in the <function>getaddrinfo()</function> function</para>
|
|
<indexterm zone="ch-system-glibc libcidn">
|
|
<primary sortas="c-libcidn">libcidn</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libcrypt">
|
|
<term><filename class="libraryfile">libcrypt</filename></term>
|
|
<listitem>
|
|
<para>The cryptography library</para>
|
|
<indexterm zone="ch-system-glibc libcrypt">
|
|
<primary sortas="c-libcrypt">libcrypt</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libdl">
|
|
<term><filename class="libraryfile">libdl</filename></term>
|
|
<listitem>
|
|
<para>The dynamic linking interface library</para>
|
|
<indexterm zone="ch-system-glibc libdl">
|
|
<primary sortas="c-libdl">libdl</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libg">
|
|
<term><filename class="libraryfile">libg</filename></term>
|
|
<listitem>
|
|
<para>Dummy library containing no functions. Previously was a runtime
|
|
library for <command>g++</command></para>
|
|
<indexterm zone="ch-system-glibc libg">
|
|
<primary sortas="c-libg">libg</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libieee">
|
|
<term><filename class="libraryfile">libieee</filename></term>
|
|
<listitem>
|
|
<para>Linking in this module forces error handling rules for math
|
|
functions as defined by the Institute of Electrical and Electronic
|
|
Engineers (IEEE). The default is POSIX.1 error handling</para>
|
|
<indexterm zone="ch-system-glibc libieee">
|
|
<primary sortas="c-libieee">libieee</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libm">
|
|
<term><filename class="libraryfile">libm</filename></term>
|
|
<listitem>
|
|
<para>The mathematical library</para>
|
|
<indexterm zone="ch-system-glibc libm">
|
|
<primary sortas="c-libm">libm</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libmcheck">
|
|
<term><filename class="libraryfile">libmcheck</filename></term>
|
|
<listitem>
|
|
<para>Turns on memory allocation checking when linked to</para>
|
|
<indexterm zone="ch-system-glibc libmcheck">
|
|
<primary sortas="c-libmcheck">libmcheck</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libmemusage">
|
|
<term><filename class="libraryfile">libmemusage</filename></term>
|
|
<listitem>
|
|
<para>Used by <command>memusage</command> to help collect
|
|
information about the memory usage of a program</para>
|
|
<indexterm zone="ch-system-glibc libmemusage">
|
|
<primary sortas="c-libmemusage">libmemusage</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libnsl">
|
|
<term><filename class="libraryfile">libnsl</filename></term>
|
|
<listitem>
|
|
<para>The network services library</para>
|
|
<indexterm zone="ch-system-glibc libnsl">
|
|
<primary sortas="c-libnsl">libnsl</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libnss">
|
|
<term><filename class="libraryfile">libnss</filename></term>
|
|
<listitem>
|
|
<para>The Name Service Switch libraries, containing functions for
|
|
resolving host names, user names, group names, aliases, services,
|
|
protocols, etc.</para>
|
|
<indexterm zone="ch-system-glibc libnss">
|
|
<primary sortas="c-libnss">libnss</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libpcprofile">
|
|
<term><filename class="libraryfile">libpcprofile</filename></term>
|
|
<listitem>
|
|
<para>Contains profiling functions used to track the amount of CPU
|
|
time spent in specific source code lines</para>
|
|
<indexterm zone="ch-system-glibc libpcprofile">
|
|
<primary sortas="c-libpcprofile">libpcprofile</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libpthread">
|
|
<term><filename class="libraryfile">libpthread</filename></term>
|
|
<listitem>
|
|
<para>The POSIX threads library</para>
|
|
<indexterm zone="ch-system-glibc libpthread">
|
|
<primary sortas="c-libpthread">libpthread</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libresolv">
|
|
<term><filename class="libraryfile">libresolv</filename></term>
|
|
<listitem>
|
|
<para>Contains functions for creating, sending, and interpreting
|
|
packets to the Internet domain name servers</para>
|
|
<indexterm zone="ch-system-glibc libresolv">
|
|
<primary sortas="c-libresolv">libresolv</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="librpcsvc">
|
|
<term><filename class="libraryfile">librpcsvc</filename></term>
|
|
<listitem>
|
|
<para>Contains functions providing miscellaneous RPC services</para>
|
|
<indexterm zone="ch-system-glibc librpcsvc">
|
|
<primary sortas="c-librpcsvc">librpcsvc</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="librt">
|
|
<term><filename class="libraryfile">librt</filename></term>
|
|
<listitem>
|
|
<para>Contains functions providing most of the interfaces specified
|
|
by the POSIX.1b Realtime Extension</para>
|
|
<indexterm zone="ch-system-glibc librt">
|
|
<primary sortas="c-librt">librt</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libthread_db">
|
|
<term><filename class="libraryfile">libthread_db</filename></term>
|
|
<listitem>
|
|
<para>Contains functions useful for building debuggers for
|
|
multi-threaded programs</para>
|
|
<indexterm zone="ch-system-glibc libthread_db">
|
|
<primary sortas="c-libthread_db">libthread_db</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry id="libutil">
|
|
<term><filename class="libraryfile">libutil</filename></term>
|
|
<listitem>
|
|
<para>Contains code for <quote>standard</quote> functions used in
|
|
many different Unix utilities</para>
|
|
<indexterm zone="ch-system-glibc libutil">
|
|
<primary sortas="c-libutil">libutil</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
</variablelist>
|
|
|
|
</sect2>
|
|
|
|
</sect1>
|