Linux Command Library
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pldd

display dynamic shared objects linked into a process

pldd pid pldd option 

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

-?, --help
Display program help message.
--usage
Display a short usage message.
-V, --version
Display the program version.

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.

pldd is available since glibc 2.15.

The pldd command is not specified by POSIX.1. Some other systems have a similar command.

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' 

Since glibc 2.19, pldd is broken: it just hangs when executed. It is unclear if it will ever be fixed.

$ 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 

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

This page is part of release 4.09 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

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