If I understand your question, I think you are looking for information available in caller. You don't want to know who called you, but who called something that called you. 

use strict;
use Carp;

trace('foo');
trace('bar');

func();


sub func
{
  trace('in func');
}

sub trace
{
  my $string = shift;
  my  ($package, $filename, $line, $subroutine, $hasargs,
       $wantarray, $evaltext, $is_require, $hints, $bitmask) = caller(
+1);
  
  if($subroutine)
  {
    print "[$subroutine]: $string\n";
  }
  else
  {
    print "[**IN MAIN**]: $string\n";
  }
}
__END__
[**IN MAIN**]: foo
[**IN MAIN**]: bar
[main::func]: in func

[download]
"Look, Shiny Things!" is not a better business strategy than compatibility and reuse.

OSUnderdog

In reply to Re: But cluck gives you more. by osunderdog
in thread How do I get Cluck output into a log file? by tphyahoo

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.