2004-11-03 13:51:07 +00:00
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.\" Copyright 1999 SuSE GmbH Nuernberg, Germany
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.\" Author: Thorsten Kukuk <kukuk@suse.de>
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.\"
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epoll_create.2, epoll_ctl.2, epoll_wait.2, eventfd.2, ioprio_set.2, signalfd.2, spu_create.2, spu_run.2, timerfd_create.2, charmap.5, locale.5, nscd.conf.5, epoll.7, spufs.7, ldconfig.8, nscd.8: Added LICENSE_START(GPLv2+_3_PARA_SW)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2013-03-10 09:28:58 +00:00
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.\" %%%LICENSE_START(GPLv2+_3_PARA_SW)
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2004-11-03 13:51:07 +00:00
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.\" This program is free software; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 2 of the
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.\" License, or (at your option) any later version.
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.\"
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.\" This program is distributed in the hope that it will be useful,
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.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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.\" General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU General Public
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getent.1, _syscall.2, acct.2, adjtimex.2, bdflush.2, brk.2, cacheflush.2, getsid.2, getxattr.2, inotify_add_watch.2, inotify_init.2, inotify_rm_watch.2, ioperm.2, ipc.2, listxattr.2, mlock.2, modify_ldt.2, mremap.2, nanosleep.2, outb.2, ptrace.2, removexattr.2, sched_get_priority_max.2, sched_rr_get_interval.2, sched_setaffinity.2, sched_setparam.2, sched_setscheduler.2, sched_yield.2, setsid.2, setxattr.2, socketcall.2, unimplemented.2, aio_cancel.3, aio_error.3, aio_fsync.3, aio_read.3, aio_return.3, aio_suspend.3, aio_write.3, cfree.3, crypt.3, dlopen.3, errno.3, fenv.3, ftime.3, ftw.3, getgrent_r.3, getpass.3, getpwent_r.3, getutent.3, hsearch.3, lio_listio.3, login.3, longjmp.3, perror.3, printf.3, scandirat.3, setjmp.3, strfmon.3, strtoimax.3, termios.3, ttyname.3, ualarm.3, wcstoimax.3, wordexp.3, console_ioctl.4, dsp56k.4, fd.4, hd.4, intro.4, lp.4, mem.4, null.4, ram.4, rtc.4, sk98lin.4, tty.4, ttyS.4, vcs.4, charmap.5, filesystems.5, ftpusers.5, gai.conf.5, group.5, host.conf.5, hosts.5, intro.5, issue.5, locale.5, motd.5, networks.5, nologin.5, nscd.conf.5, nss.5, nsswitch.conf.5, passwd.5, proc.5, protocols.5, securetty.5, shells.5, termcap.5, ttytype.5, utmp.5, intro.6, armscii-8.7, ascii.7, bootparam.7, cp1251.7, cpuset.7, environ.7, glob.7, intro.7, iso_8859-1.7, iso_8859-10.7, iso_8859-11.7, iso_8859-13.7, iso_8859-14.7, iso_8859-15.7, iso_8859-16.7, iso_8859-2.7, iso_8859-3.7, iso_8859-4.7, iso_8859-5.7, iso_8859-6.7, iso_8859-7.7, iso_8859-8.7, iso_8859-9.7, koi8-r.7, koi8-u.7, posixoptions.7, standards.7, unicode.7, utf-8.7, intro.8, ldconfig.8, nscd.8: Global fix: Update info in source comments on where to get a copy of the GPL
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2013-03-10 09:28:43 +00:00
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.\" License along with this manual; if not, see
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.\" <http://www.gnu.org/licenses/>.
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epoll_create.2, epoll_ctl.2, epoll_wait.2, eventfd.2, ioprio_set.2, signalfd.2, spu_create.2, spu_run.2, timerfd_create.2, charmap.5, locale.5, nscd.conf.5, epoll.7, spufs.7, ldconfig.8, nscd.8: Added LICENSE_START(GPLv2+_3_PARA_SW)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2013-03-10 09:28:58 +00:00
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.\" %%%END_LICENSE
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2004-11-03 13:51:07 +00:00
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.\"
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2007-09-20 06:52:22 +00:00
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.\" Modified, 6 May 2002, Michael Kerrisk, <mtk.manpages@gmail.com>
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2004-11-03 13:51:07 +00:00
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.\" Change listed order of /usr/lib and /lib
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futimesat.2, mount.2, confstr.3, iconv.3, makedev.3, malloc.3, strcasecmp.3, strcat.3, strcmp.3, strcpy.3, strdup.3, strftime.3, strnlen.3, strpbrk.3, strspn.3, strtok.3, strxfrm.3, sk98lin.4, icmp.7, ipv6.7, packet.7, raw.7, rtnetlink.7, unix.7, x25.7, ldconfig.8, nscd.8: tstamp
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2012-05-10 20:09:28 +00:00
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.TH LDCONFIG 8 2012-05-10 "GNU" "Linux Programmer's Manual"
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2004-11-03 13:51:07 +00:00
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.SH NAME
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2012-05-03 16:05:56 +00:00
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ldconfig \- configure dynamic linker run-time bindings
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2004-11-03 13:51:07 +00:00
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.SH SYNOPSIS
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.B /sbin/ldconfig
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[
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.B \-nNvXV
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]
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[
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.BR \-f\ conf
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]
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[
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.BR \-C\ cache
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]
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[
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.BR \-r\ root
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]
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.IR directory \ ...
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.PD 0
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.PP
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.PD
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2007-09-20 16:26:31 +00:00
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.B /sbin/ldconfig
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2004-11-03 13:51:07 +00:00
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.B \-l
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[
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.B \-v
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]
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.IR library \ ...
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.PD 0
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.PP
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.PD
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.B /sbin/ldconfig
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.B \-p
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.SH DESCRIPTION
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.B ldconfig
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creates the necessary links and cache to the most recent shared
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libraries found in the directories specified on the command line,
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in the file
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.IR /etc/ld.so.conf ,
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and in the trusted directories
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.RI ( /lib
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and
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.IR /usr/lib ).
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The cache is used by the run-time linker,
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2007-09-20 16:26:31 +00:00
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.I ld.so
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2004-11-03 13:51:07 +00:00
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or
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.IR ld-linux.so .
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.B ldconfig
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2006-02-12 22:15:41 +00:00
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checks the header and filenames of the libraries it encounters when
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2004-11-03 13:51:07 +00:00
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determining which versions should have their links updated.
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.PP
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.B ldconfig
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2007-10-03 19:56:24 +00:00
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will attempt to deduce the type of ELF libs (i.e., libc5 or libc6/glibc)
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2007-04-12 22:42:49 +00:00
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based on what C libs, if any, the library was linked against.
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2007-05-21 10:08:45 +00:00
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.\" The following sentence looks suspect
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2006-02-08 09:44:13 +00:00
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.\" (perhaps historical cruft) -- MTK, Jul 2005
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2007-05-21 10:08:45 +00:00
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.\" Therefore, when making dynamic libraries,
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.\" it is wise to explicitly link against libc (use \-lc).
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2004-11-03 13:51:07 +00:00
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.PP
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Some existing libs do not contain enough information to allow the deduction of
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2007-04-12 22:42:49 +00:00
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their type.
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Therefore, the
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2007-09-20 16:26:31 +00:00
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.I /etc/ld.so.conf
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2007-04-12 22:42:49 +00:00
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file format allows the specification of an expected type.
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This is
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2005-11-02 13:55:25 +00:00
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.I only
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2007-04-12 22:42:49 +00:00
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used for those ELF libs which we can not work out.
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The format
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2004-11-03 13:51:07 +00:00
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is "dirname=TYPE", where TYPE can be libc4, libc5, or libc6.
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2007-04-12 22:42:49 +00:00
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(This syntax also works on the command line.)
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Spaces are
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2005-11-02 13:55:25 +00:00
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.I not
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2007-04-12 22:42:49 +00:00
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allowed.
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Also see the
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2005-07-06 07:41:37 +00:00
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.B \-p
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2004-11-03 13:51:07 +00:00
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option.
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.B ldconfig
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2004-11-10 18:17:26 +00:00
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should normally be run by the superuser as it may require write
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2004-11-03 13:51:07 +00:00
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permission on some root owned directories and files.
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.SH OPTIONS
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.TP
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.B \-v
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Verbose mode.
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Print current version number, the name of each directory as it
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is scanned, and any links that are created.
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Overrides quiet mode.
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.TP
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.B \-n
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Only process directories specified on the command line.
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Don't process the trusted directories
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.RI ( /lib
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and
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.IR /usr/lib )
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nor those specified in
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.IR /etc/ld.so.conf .
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Implies
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.BR \-N .
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.TP
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.B \-N
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Don't rebuild the cache.
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Unless
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.B \-X
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is also specified, links are still updated.
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.TP
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.B \-X
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Don't update links.
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Unless
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.B \-N
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is also specified, the cache is still rebuilt.
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.TP
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.B \-f conf
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Use
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.B conf
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instead of
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.IR /etc/ld.so.conf .
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.TP
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.B \-C cache
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Use
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.B cache
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instead of
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.IR /etc/ld.so.cache .
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.TP
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.B \-r root
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Change to and use
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2005-11-02 13:55:25 +00:00
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.I root
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2004-11-03 13:51:07 +00:00
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as the root directory.
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.TP
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.B \-l
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2007-04-12 22:42:49 +00:00
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Library mode.
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Manually link individual libraries.
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Intended for use by experts only.
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2004-11-03 13:51:07 +00:00
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.TP
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.B \-p
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Print the lists of directories and candidate libraries stored in
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the current cache.
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.SH FILES
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.PD 0
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.TP 20
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2005-11-02 13:55:25 +00:00
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.I /lib/ld.so
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2004-11-03 13:51:07 +00:00
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run-time linker/loader
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.TP 20
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2005-11-02 13:55:25 +00:00
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.I /etc/ld.so.conf
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2005-06-24 14:58:43 +00:00
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File containing a list of colon, space, tab, newline, or comma-separated
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2004-11-03 13:51:07 +00:00
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directories in which to search for libraries.
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.TP 20
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2005-11-02 13:55:25 +00:00
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.I /etc/ld.so.cache
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2004-11-03 13:51:07 +00:00
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File containing an ordered list of libraries found in the directories
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specified in
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2009-04-04 18:30:46 +00:00
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.IR /etc/ld.so.conf ,
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as well as those found in
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.I /lib
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and
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.IR /usr/lib .
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2004-11-03 13:51:07 +00:00
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.PD
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2007-06-16 07:23:16 +00:00
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.SH SEE ALSO
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2007-06-15 20:22:43 +00:00
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.BR ldd (1),
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.BR ld.so (8)
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