[ce14c07] | 1 | <sect2><title> </title><para> </para></sect2>
|
---|
| 2 |
|
---|
[896cf74] | 3 | <sect2><title>Descriptions</title>
|
---|
[8fcc2c0] | 4 |
|
---|
| 5 | <para>Last checked against version &glibc-contversion;.</para>
|
---|
[6370fa6] | 6 |
|
---|
[ab28d5f] | 7 | <sect3><title>Program file descriptions</title>
|
---|
[bdc08c1] | 8 |
|
---|
| 9 | <sect4><title>catchsegv</title>
|
---|
[227d26b] | 10 | <para>catchsegv can be used to create a stack trace when a program
|
---|
| 11 | terminates with a segmentation fault.</para></sect4>
|
---|
[bdc08c1] | 12 |
|
---|
| 13 | <sect4><title>gencat</title>
|
---|
| 14 | <para>gencat generates message catalogues.</para></sect4>
|
---|
| 15 |
|
---|
| 16 | <sect4><title>getconf</title>
|
---|
[227d26b] | 17 | <para>getconf displays the system configuration values for filesystem
|
---|
| 18 | specific variables.</para></sect4>
|
---|
[bdc08c1] | 19 |
|
---|
| 20 | <sect4><title>getent</title>
|
---|
| 21 | <para>getent gets entries from an administrative database.</para></sect4>
|
---|
| 22 |
|
---|
| 23 | <sect4><title>glibcbug</title>
|
---|
| 24 | <para>glibcbug creates a bug report about glibc and and mails it to the
|
---|
| 25 | bug email address.</para></sect4>
|
---|
| 26 |
|
---|
| 27 | <sect4><title>iconv</title>
|
---|
| 28 | <para>iconv performs character set conversion.</para></sect4>
|
---|
| 29 |
|
---|
| 30 | <sect4><title>iconvconfig</title>
|
---|
| 31 | <para>iconvconfig creates fastloading iconv module
|
---|
| 32 | configuration file.</para></sect4>
|
---|
| 33 |
|
---|
| 34 | <sect4><title>ldconfig</title>
|
---|
| 35 | <para>ldconfig configures the dynamic linker run time bindings.</para></sect4>
|
---|
| 36 |
|
---|
| 37 | <sect4><title>ldd</title>
|
---|
| 38 | <para>ldd prints the shared libraries required by each program or shared
|
---|
| 39 | library specified on the command line.</para></sect4>
|
---|
| 40 |
|
---|
| 41 | <sect4><title>lddlibc4</title>
|
---|
[02ef5b58] | 42 | <para>lddlibc4 assists ldd with object files.</para></sect4>
|
---|
[bdc08c1] | 43 |
|
---|
| 44 | <sect4><title>locale</title>
|
---|
[227d26b] | 45 | <para>locale is a Perl program which tells the compiler to enable
|
---|
| 46 | (or disable) the use of POSIX locales for built-in operations.</para></sect4>
|
---|
[bdc08c1] | 47 |
|
---|
| 48 | <sect4><title>localedef</title>
|
---|
| 49 | <para>localedef compiles locale specifications.</para></sect4>
|
---|
| 50 |
|
---|
| 51 | <sect4><title>mtrace</title>
|
---|
[227d26b] | 52 | <para>mtrace prints the multicast path from a source to a receiver (an IP
|
---|
| 53 | trace query).</para></sect4>
|
---|
[bdc08c1] | 54 |
|
---|
| 55 | <sect4><title>nscd</title>
|
---|
| 56 | <para>nscd is a daemon that provides a cache for the most common name
|
---|
| 57 | service requests.</para></sect4>
|
---|
| 58 |
|
---|
| 59 | <sect4><title>nscd_nischeck</title>
|
---|
[227d26b] | 60 | <para>nscd_nischeck checks whether or not secure mode is necessary for
|
---|
| 61 | NIS+ lookup.</para></sect4>
|
---|
[bdc08c1] | 62 |
|
---|
| 63 | <sect4><title>pcprofiledump</title>
|
---|
| 64 | <para>pcprofiledump dumps information generated by
|
---|
| 65 | PC profiling.</para></sect4>
|
---|
| 66 |
|
---|
| 67 | <sect4><title>pt_chown</title>
|
---|
| 68 | <para>pt_chown sets the owner, group and access permission of the
|
---|
| 69 | slave pseudo terminal corresponding to the master pseudo terminal passed
|
---|
[2c094d6] | 70 | on file descriptor `3'. This is the helper program for the `grantpt'
|
---|
| 71 | function. It is not intended to be run directly from the command
|
---|
[227d26b] | 72 | line.</para></sect4>
|
---|
[bdc08c1] | 73 |
|
---|
| 74 | <sect4><title>rpcgen</title>
|
---|
[227d26b] | 75 | <para>rpcgen generates C code to implement the RPC protocol.</para></sect4>
|
---|
[bdc08c1] | 76 |
|
---|
| 77 | <sect4><title>rpcinfo</title>
|
---|
[227d26b] | 78 | <para>rpcinfo makes an RPC call to an RPC server.</para></sect4>
|
---|
[bdc08c1] | 79 |
|
---|
| 80 | <sect4><title>sln</title>
|
---|
[2c094d6] | 81 | <para>sln symbolically links dest to source. It is statically linked,
|
---|
| 82 | needing no dynamic linking at all. Thus sln is useful to make symbolic
|
---|
[bdc08c1] | 83 | links to dynamic libraries if the dynamic linking system for some reason
|
---|
| 84 | is nonfunctional.</para></sect4>
|
---|
| 85 |
|
---|
| 86 | <sect4><title>sprof</title>
|
---|
| 87 | <para>sprof reads and displays shared object profiling data.</para></sect4>
|
---|
| 88 |
|
---|
| 89 | <sect4><title>tzselect</title>
|
---|
| 90 | <para>tzselect asks the user for information about the current location and
|
---|
| 91 | outputs the resulting time zone description to standard output.</para></sect4>
|
---|
| 92 |
|
---|
| 93 | <sect4><title>xtrace</title>
|
---|
| 94 | <para>xtrace traces execution of program by printing the currently executed
|
---|
| 95 | function.</para></sect4>
|
---|
| 96 |
|
---|
| 97 | <sect4><title>zdump</title>
|
---|
| 98 | <para>zdump is the time zone dumper.</para></sect4>
|
---|
[6370fa6] | 99 |
|
---|
[bdc08c1] | 100 | <sect4><title>zic</title>
|
---|
| 101 | <para>zic is the time zone compiler.</para></sect4>
|
---|
[6370fa6] | 102 |
|
---|
[bdc08c1] | 103 | </sect3>
|
---|
| 104 |
|
---|
[ab28d5f] | 105 | <sect3><title>Library file descriptions</title>
|
---|
[bdc08c1] | 106 |
|
---|
| 107 | <sect4><title>ld.so</title>
|
---|
| 108 | <para>ld.so is the helper program for shared library
|
---|
| 109 | executables.</para></sect4>
|
---|
| 110 |
|
---|
[9cb6916] | 111 | <sect4><title>libBrokenLocale</title>
|
---|
[227d26b] | 112 | <para>Used by software, such as Mozilla, to solve broken locales.</para></sect4>
|
---|
[bdc08c1] | 113 |
|
---|
[c5ba0d6] | 114 | <sect4><title>libSegFault</title>
|
---|
[227d26b] | 115 | <para>libSegFault is a segmentation fault signal handler. It tries to catch
|
---|
| 116 | segfaults.</para></sect4>
|
---|
[bdc08c1] | 117 |
|
---|
[9cb6916] | 118 | <sect4><title>libanl</title>
|
---|
[227d26b] | 119 | <para>libanl is an asynchronous name lookup library.</para></sect4>
|
---|
[bdc08c1] | 120 |
|
---|
[c5ba0d6] | 121 | <sect4><title>libbsd-compat</title>
|
---|
[02ef5b58] | 122 | <para>libbsd-compat provides the portability needed in order to run certain
|
---|
| 123 | programs in Linux.</para></sect4>
|
---|
[bdc08c1] | 124 |
|
---|
[9cb6916] | 125 | <sect4><title>libc, libc_nonshared</title>
|
---|
[2c094d6] | 126 | <para>These files constitute the main C library. The C library is a
|
---|
[bdc08c1] | 127 | collection of commonly used functions in programs.
|
---|
[58484755] | 128 | This way a programmer doesn't need to create his own functions for every
|
---|
[7d90bd3] | 129 | single task. The most common things like writing a string to the screen
|
---|
[b822811] | 130 | are already present and at the disposal of the programmer.</para>
|
---|
[6370fa6] | 131 |
|
---|
[cf24ff1] | 132 | <para>The C library (actually almost every library) comes in two flavors:
|
---|
| 133 | a dynamic and a static one. In short, when a program uses a static C
|
---|
| 134 | library, the code from the C library is copied into the executable file.
|
---|
| 135 | When a program uses a dynamic library, the executable will not
|
---|
[2c094d6] | 136 | contain the code from the C library, but instead a routine that loads
|
---|
[6370fa6] | 137 | the functions from the library at the time the program is run. This
|
---|
[bdc08c1] | 138 | means a significant decrease in the file size of a program. The
|
---|
[cf24ff1] | 139 | documentation that comes with the C library describes this in more
|
---|
[bdc08c1] | 140 | detail, as it is too complicated to explain here in one or two
|
---|
| 141 | lines.</para></sect4>
|
---|
| 142 |
|
---|
[9cb6916] | 143 | <sect4><title>libcrypt</title>
|
---|
[bdc08c1] | 144 | <para>libcrypt is the cryptography library.</para></sect4>
|
---|
| 145 |
|
---|
[9cb6916] | 146 | <sect4><title>libdl</title>
|
---|
[02ef5b58] | 147 | <para>libdl is the dynamic linking interface library.</para></sect4>
|
---|
[bdc08c1] | 148 |
|
---|
[c5ba0d6] | 149 | <sect4><title>libg</title>
|
---|
[02ef5b58] | 150 | <para>libg is a runtime library for g++.</para></sect4>
|
---|
[bdc08c1] | 151 |
|
---|
[c5ba0d6] | 152 | <sect4><title>libieee</title>
|
---|
[02ef5b58] | 153 | <para>libieee is the IEEE floating point library.</para></sect4>
|
---|
[bdc08c1] | 154 |
|
---|
[9cb6916] | 155 | <sect4><title>libm</title>
|
---|
[bdc08c1] | 156 | <para>libm is the mathematical library.</para></sect4>
|
---|
| 157 |
|
---|
[c5ba0d6] | 158 | <sect4><title>libmcheck</title>
|
---|
[65396f5] | 159 | <para>libmcheck contains code run at boot.</para></sect4>
|
---|
[bdc08c1] | 160 |
|
---|
[c5ba0d6] | 161 | <sect4><title>libmemusage</title>
|
---|
[65396f5] | 162 | <para>libmemusage is used by memusage to help collect information about the
|
---|
| 163 | memory usage of a program.</para></sect4>
|
---|
[bdc08c1] | 164 |
|
---|
[9cb6916] | 165 | <sect4><title>libnsl</title>
|
---|
[f49cf1a] | 166 | <para>libnsl is the network services library.</para></sect4>
|
---|
[bdc08c1] | 167 |
|
---|
[c5ba0d6] | 168 | <sect4><title>libnss_compat, libnss_dns, libnss_files,
|
---|
| 169 | libnss_hesiod, libnss_nis, libnss_nisplus</title>
|
---|
[f49cf1a] | 170 | <para>The basic idea is to put the implementation of the different services
|
---|
| 171 | offered to access the databases in separate modules. This has some
|
---|
| 172 | advantages:</para>
|
---|
| 173 | <itemizedlist>
|
---|
[4ceb3a1] | 174 | <listitem><para>contributors can add new services without adding them to
|
---|
| 175 | GNU C library,</para></listitem>
|
---|
| 176 | <listitem><para>the modules can be updated separately,</para></listitem>
|
---|
| 177 | <listitem><para>the C library image is smaller.</para></listitem>
|
---|
[f49cf1a] | 178 | </itemizedlist></sect4>
|
---|
[bdc08c1] | 179 |
|
---|
[c5ba0d6] | 180 | <sect4><title>libpcprofile</title>
|
---|
[46105cf] | 181 | <para>Code used by the kernel to track CPU time spent in functions, source
|
---|
| 182 | code lines, and instructions.</para></sect4>
|
---|
[bdc08c1] | 183 |
|
---|
[9cb6916] | 184 | <sect4><title>libpthread</title>
|
---|
[f49cf1a] | 185 | <para>The POSIX threads library.</para></sect4>
|
---|
[bdc08c1] | 186 |
|
---|
[9cb6916] | 187 | <sect4><title>libresolv</title>
|
---|
[f49cf1a] | 188 | <para>Functions in this library provide for creating, sending, and
|
---|
| 189 | interpreting packets to the Internet domain name servers.</para></sect4>
|
---|
[bdc08c1] | 190 |
|
---|
[9cb6916] | 191 | <sect4><title>librpcsvc</title>
|
---|
[f49cf1a] | 192 | <para>Functions in this library provide miscellaneous RPC services.</para></sect4>
|
---|
[bdc08c1] | 193 |
|
---|
[9cb6916] | 194 | <sect4><title>librt</title>
|
---|
[f49cf1a] | 195 | <para>Functions in this library provide most of the interfaces specified by
|
---|
| 196 | the POSIX.1b Realtime Extension.</para></sect4>
|
---|
[bdc08c1] | 197 |
|
---|
[c5ba0d6] | 198 | <sect4><title>libthread_db</title>
|
---|
[f49cf1a] | 199 | <para>Functions is this library are useful for building debuggers for
|
---|
| 200 | multi-threaded programs.</para></sect4>
|
---|
[bdc08c1] | 201 |
|
---|
[9cb6916] | 202 | <sect4><title>libutil</title>
|
---|
[32cee45c] | 203 | <para>Contains code for "standard" functions used in many different Unix
|
---|
[f49cf1a] | 204 | utilities.</para></sect4>
|
---|
[bdc08c1] | 205 |
|
---|
| 206 | </sect3>
|
---|
[6370fa6] | 207 |
|
---|
| 208 | </sect2>
|
---|
| 209 |
|
---|