Let's say I have a subroutine that "dies". How can I determine what line called the subroutine? Debugger "Stack Trace" seems the obvious answer, but it does not work for me:
 print "Hello\n";
 a(0);
 print "Middle\n";
 a(1);
 print "Goodbye\n";

 sub a {
    $parameter = shift;
    if( $parameter ) { die };
 }

bash> perl -d test.pl 
Default die handler restored.
Loading DB routines from perl5db.pl version 1.07
Editor support available.

DB<1> c
  Hello
  Middle
  Died at test.pl line 10.
  Debugged program terminated.
  
DB<1> T
  $ = DB::fake::at_exit() called from file
  /usr/local/lib/perl5/5.6.1/perl5db.pl' line 2697
  $ = DB::END() called from file `test.pl' line 0
  $ = eval {...} called from file `test.pl' line 0

DB<1> 
While it died at line 10, what line called the subroutine that died?

In reply to Perl debug. How do I find calling line number? by brycen

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.