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<H1>PLDD</H1>
Section: Linux User Manual (1)<BR>Updated: 2019-08-02<BR><A HREF="#index">Index</A>
<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
<A NAME="lbAB">&nbsp;</A>
<H2>NAME</H2>
pldd - display dynamic shared objects linked into a process
<A NAME="lbAC">&nbsp;</A>
<H2>SYNOPSIS</H2>
<PRE>
<B>pldd </B><I>pid</I>
<B>pldd</B><I> option</I>
</PRE>
<A NAME="lbAD">&nbsp;</A>
<H2>DESCRIPTION</H2>
The
<B>pldd</B>
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
<B><A HREF="/cgi-bin/man/man2html?3+dlopen">dlopen</A></B>(3).
<A NAME="lbAE">&nbsp;</A>
<H2>OPTIONS</H2>
<DL COMPACT>
<DT id="1"><B>-?</B>, <B>--help</B>
<DD>
Display a help message and exit.
<DT id="2"><B>--usage</B>
<DD>
Display a short usage message and exit.
<DT id="3"><B>-V</B>, <B>--version</B>
<DD>
Display program version information and exit.
</DL>
<A NAME="lbAF">&nbsp;</A>
<H2>EXIT STATUS</H2>
On success,
<B>pldd</B>
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,
<B>pldd</B>
exists with a status of 1.
If given an invalid option, it exits with the status 64.
<A NAME="lbAG">&nbsp;</A>
<H2>VERSIONS</H2>
<B>pldd</B>
is available since glibc 2.15.
<A NAME="lbAH">&nbsp;</A>
<H2>CONFORMING TO</H2>
The
<B>pldd</B>
command is not specified by POSIX.1.
Some other systems
have a similar command.
<A NAME="lbAI">&nbsp;</A>
<H2>NOTES</H2>
The command
<P>
lsof -p PID
<P>
also shows output that includes the dynamic shared objects
that are linked into a process.
<P>
The
<B><A HREF="/cgi-bin/man/man2html?1+gdb">gdb</A></B>(1)
<I>info shared</I>
command also shows the shared libraries being used by a process,
so that one can obtain similar output to
<B>pldd</B>
using a command such as the following
(to monitor the process with the specified
<I>pid</I>):
<P>
$ <B>gdb -ex &quot;set confirm off&quot; -ex &quot;set height 0&quot; -ex &quot;info shared&quot; \</B>
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>-ex&nbsp;&quot;quit&quot;&nbsp;-p&nbsp;$pid&nbsp;|&nbsp;grep&nbsp;'^0x.*0x'</B>
<A NAME="lbAJ">&nbsp;</A>
<H2>BUGS</H2>
From glibc 2.19 to 2.29,
<B>pldd</B>
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.
<A NAME="lbAK">&nbsp;</A>
<H2>EXAMPLE</H2>
$ <B>echo $$</B> # Display PID of shell
1143
$ <B>pldd $$</B> # 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
<A NAME="lbAL">&nbsp;</A>
<H2>SEE ALSO</H2>
<B><A HREF="/cgi-bin/man/man2html?1+ldd">ldd</A></B>(1),
<B><A HREF="/cgi-bin/man/man2html?1+lsof">lsof</A></B>(1),
<B><A HREF="/cgi-bin/man/man2html?3+dlopen">dlopen</A></B>(3),
<B><A HREF="/cgi-bin/man/man2html?8+ld.so">ld.so</A></B>(8)
<A NAME="lbAM">&nbsp;</A>
<H2>COLOPHON</H2>
This page is part of release 5.05 of the Linux
<I>man-pages</I>
project.
A description of the project,
information about reporting bugs,
and the latest version of this page,
can be found at
<A HREF="https://www.kernel.org/doc/man-pages/.">https://www.kernel.org/doc/man-pages/.</A>
<P>
<HR>
<A NAME="index">&nbsp;</A><H2>Index</H2>
<DL>
<DT id="4"><A HREF="#lbAB">NAME</A><DD>
<DT id="5"><A HREF="#lbAC">SYNOPSIS</A><DD>
<DT id="6"><A HREF="#lbAD">DESCRIPTION</A><DD>
<DT id="7"><A HREF="#lbAE">OPTIONS</A><DD>
<DT id="8"><A HREF="#lbAF">EXIT STATUS</A><DD>
<DT id="9"><A HREF="#lbAG">VERSIONS</A><DD>
<DT id="10"><A HREF="#lbAH">CONFORMING TO</A><DD>
<DT id="11"><A HREF="#lbAI">NOTES</A><DD>
<DT id="12"><A HREF="#lbAJ">BUGS</A><DD>
<DT id="13"><A HREF="#lbAK">EXAMPLE</A><DD>
<DT id="14"><A HREF="#lbAL">SEE ALSO</A><DD>
<DT id="15"><A HREF="#lbAM">COLOPHON</A><DD>
</DL>
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