pmload (1) Linux Manual Page

NAME

pmload – show what files a given module loads at compile time

DESCRIPTION

Given an argument of a module name, show all the files that are loaded directly or indirectly when the module is used at compile-time.

EXAMPLES

    $ pmload IO::Handle
    /usr/local/devperl/lib/5.00554/Exporter.pm
    /usr/local/devperl/lib/5.00554/Carp.pm
    /usr/local/devperl/lib/5.00554/strict.pm
    /usr/local/devperl/lib/5.00554/vars.pm
    /usr/local/devperl/lib/5.00554/i686-linux/DynaLoader.pm
    /usr/local/devperl/lib/5.00554/i686-linux/IO/Handle.pm
    /usr/local/devperl/lib/5.00554/Symbol.pm
    /usr/local/devperl/lib/5.00554/i686-linux/IO/File.pm
    /usr/local/devperl/lib/5.00554/SelectSaver.pm
    /usr/local/devperl/lib/5.00554/i686-linux/Fcntl.pm
    /usr/local/devperl/lib/5.00554/AutoLoader.pm
    /usr/local/devperl/lib/5.00554/i686-linux/IO.pm
    /usr/local/devperl/lib/5.00554/i686-linux/IO/Seekable.pm
    $ cat `pmload IO::Socket` | wc -l
       4015
    $ oldperl -S pmload Tk
    /usr/lib/perl5/site_perl/Tk/Pretty.pm
    /usr/lib/perl5/Symbol.pm
    /usr/lib/perl5/site_perl/Tk/Frame.pm
    /usr/lib/perl5/site_perl/Tk/Toplevel.pm
    /usr/lib/perl5/strict.pm
    /usr/lib/perl5/Exporter.pm
    /usr/lib/perl5/vars.pm
    /usr/lib/perl5/site_perl/auto/Tk/Wm/autosplit.ix
    /usr/lib/perl5/site_perl/auto/Tk/Widget/autosplit.ix
    /usr/lib/perl5/site_perl/Tk.pm
    /usr/lib/perl5/i386-linux/5.00404/DynaLoader.pm
    /usr/lib/perl5/site_perl/auto/Tk/Frame/autosplit.ix
    /usr/lib/perl5/site_perl/auto/Tk/Toplevel/autosplit.ix
    /usr/lib/perl5/Carp.pm
    /usr/lib/perl5/site_perl/auto/Tk/autosplit.ix
    /usr/lib/perl5/site_perl/Tk/CmdLine.pm
    /usr/lib/perl5/site_perl/Tk/MainWindow.pm
    /usr/lib/perl5/site_perl/Tk/Submethods.pm
    /usr/lib/perl5/site_perl/Tk/Configure.pm
    /usr/lib/perl5/AutoLoader.pm
    /usr/lib/perl5/site_perl/Tk/Derived.pm
    /usr/lib/perl5/site_perl/Tk/Image.pm
    /usr/lib/perl5/site_perl/Tk/Wm.pm
    /usr/lib/perl5/site_perl/Tk/Widget.pm

NOTE

If the programmers used a delayed "require", those files won’t show up. Furthermore, this doesn’t show all possible files that get opened, just those that those up in %INC. Most systems have a way to trace system calls. You can use this to find the real answer. First, get a baseline with no modules loaded.

$ strace perl - e 1 2 > &1 | perl - nle '/^open\("(.*?)".* = [^-]/ && print $1' / etc / ld.so.cache / lib / libnsl.so .1 / lib / libdb.so .2 / lib / libdl.so .2 / lib / libm.so .6 / lib / libc.so .6 / lib / libcrypt.so .1 / dev / null $ strace perl - e 1 2 > &1 | grep - c '^open.*= [^-]' 8

Now add module loads and see what you get:

$ strace perl - MIO::Socket - e 1 2 > &1 | grep - c '^open.*= [^-]' 24 $ strace perl - MTk - e 1 2 > &1 | grep - c '^open.*= [^-]' 35

SEE ALSO

Devel::Loaded, plxload(1).

AUTHORS and COPYRIGHTS

Copyright (C) 1999 Tom Christiansen.

Copyright (C) 2006-2014 Mark Leighton Fisher.

LICENSE

This is free software; you can redistribute it and/or modify it under the terms of either: (a) the GNU General Public License as published by the Free Software Foundation; either version 1, or (at your option) any later version, or (b) the Perl “Artistic License”. (This is the Perl 5 licensing scheme.)

Please note this is a change from the original pmtools-1.00 (still available on CPAN), as pmtools-1.00 were licensed only under the Perl “Artistic License”.

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