man7.org > Linux > man-pages

Linux/UNIX system programming training

pldd(1) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS | VERSIONS | STANDARDS | HISTORY | NOTES | BUGS | EXAMPLES | SEE ALSO | COLOPHON 

pldd(1)                  General Commands Manual                 pldd(1)

NAME         top

       pldd - display dynamic shared objects linked into a process

SYNOPSIS         top

       pldd pid
       pldd option

DESCRIPTION         top

       The pldd command displays a list of the dynamic shared objects
       (DSOs) that are linked into the process with the specified
       process ID (PID).  The list includes the libraries that have been
       dynamically loaded using dlopen(3).

OPTIONS         top

       --help
       -?     Display a help message and exit.

       --usage
              Display a short usage message and exit.

       --version
       -V     Display program version information and exit.

EXIT STATUS         top

       On success, pldd exits with the status 0.  If the specified
       process does not exist, the user does not have permission to
       access its dynamic shared object list, or no command-line
       arguments are supplied, pldd exists with a status of 1.  If given
       an invalid option, it exits with the status 64.

VERSIONS         top

       Some other systems have a similar command.

STANDARDS         top

       None.

HISTORY         top

       glibc 2.15.

NOTES         top

       The command

           lsof -p PID

       also shows output that includes the dynamic shared objects that
       are linked into a process.

       The gdb(1) info shared command also shows the shared libraries
       being used by a process, so that one can obtain similar output to
       pldd using a command such as the following (to monitor the
       process with the specified pid):

           $ gdb -ex "set confirm off" -ex "set height 0" -ex "info shared" \
                   -ex "quit" -p $pid | grep '^0x.*0x'

BUGS         top

       From glibc 2.19 to glibc 2.29, pldd was broken: it just hung when
       executed.  This problem was fixed in glibc 2.30, and the fix has
       been backported to earlier glibc versions in some distributions.

EXAMPLES         top

       $ echo $$               # Display PID of shell
       1143
       $ pldd $$               # Display DSOs linked into the shell
       1143:   /usr/bin/bash
       linux-vdso.so.1
       /lib64/libtinfo.so.5
       /lib64/libdl.so.2
       /lib64/libc.so.6
       /lib64/ld-linux-x86-64.so.2
       /lib64/libnss_files.so.2

SEE ALSO         top

       ldd(1), lsof(1), dlopen(3), ld.so(8)

COLOPHON         top

       This page is part of the man-pages (Linux kernel and C library
       user-space interface documentation) project.  Information about
       the project can be found at 
       ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
       This page was obtained from the tarball man-pages-6.9.1.tar.gz
       fetched from
       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
       2024-06-26.  If you discover any rendering problems in this HTML
       version of the page, or you believe there is a better or more up-
       to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not
       part of the original manual page), send a mail to
       man-pages@man7.org

Linux man-pages 6.9.1          2024-06-15                        pldd(1)

Pages that refer to this page: ldd(1),  dlopen(3),  ld.so(8)

HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface.

For details of in-depth Linux/UNIX system programming training courses that I teach, look here.

Hosting by jambit GmbH.

Cover of TLPI