SYNOPSIS

#!/usr/bin/perl -d:CallTrace

package foo;

sub bar {
  print ``bar\n'';
  baz(); }

sub baz {
    print ``boo\n''; }

foo::bar();

RATIONALE

There are a number of perl modules in the CPAN that are designed to trace a program's execution as it runs. Each uses a different trick to do its job, but none of them quite met my needs. The technique this module uses is quite simple and seems to be quite robust.

DB::sub

perl will automatically call DB::sub on each subroutine call and leave it up to us to dispatch to where we want to go.

Devel::CallTrace::called

This routine is called with two parameters:

DEPTH

The integer ``depth'' that this call is being called at.

PARAMS

A reference to the routine's @INC

To get at the subroutine that was being called, have a look at $DB::sub

COPYRIGHT

Copyright 2005 Jesse Vincent <[email protected]>

This module may be redistributed under the same terms as perl itself