Perl - DTracing Perl
These scripts trace the Perl programming language, and require a version
of Perl to be built with the DTrace probes patch applied.
The Perl DTrace provider was originally written by Alan Burlison, and
later rewritten by Richard Dawe. These scripts were written and tested
with Richard's patch to perl, which can be found in the comments on
Alan's original blog entry,
http://blogs.sun.com/alanbur/entry/dtrace_and_perl
To get this and these scripts working, the rough steps are,
1. Download and extract perl 5.8.8 (www.cpan.org)
2. Download Richard's patch
3. Apply Richard's patch (gpatch -p1 -i patchfile)
4. sh Configure
5. make perldtrace.h
6. /usr/sbin/dtrace -h -s perldtrace.d -o perldtrace.h
7. make
If things go awry, you might find help by asking on the
dtrace-discuss@opensolaris.org mailing list.
Since the DTrace Perl provider may be developed further, there is a chance
that it has changed slightly by the time you are reading this, causing
these scripts to either break or behave oddly. Firstly, check for newer
versions of the DTraceToolkit; if it hasn't been updated and you need
to use these scripts immediately, then updating them shouldn't take
too long. The following was the state of the provider when these scripts
were written - check for changes and update the scripts accordingly,
provider perl {
probe sub-entry(subroutine, file, lineno)
probe sub-return(subroutine, file, lineno)
};
