1Perl - DTracing Perl 2 3 These scripts trace the Perl programming language, and require a version 4 of Perl to be built with the DTrace probes patch applied. 5 6 The Perl DTrace provider was originally written by Alan Burlison, and 7 later rewritten by Richard Dawe. These scripts were written and tested 8 with Richard's patch to perl, which can be found in the comments on 9 Alan's original blog entry, 10 11 http://blogs.sun.com/alanbur/entry/dtrace_and_perl 12 13 To get this and these scripts working, the rough steps are, 14 15 1. Download and extract perl 5.8.8 (www.cpan.org) 16 2. Download Richard's patch 17 3. Apply Richard's patch (gpatch -p1 -i patchfile) 18 4. sh Configure 19 5. make perldtrace.h 20 6. /usr/sbin/dtrace -h -s perldtrace.d -o perldtrace.h 21 7. make 22 23 If things go awry, you might find help by asking on the 24 dtrace-discuss@opensolaris.org mailing list. 25 26 Since the DTrace Perl provider may be developed further, there is a chance 27 that it has changed slightly by the time you are reading this, causing 28 these scripts to either break or behave oddly. Firstly, check for newer 29 versions of the DTraceToolkit; if it hasn't been updated and you need 30 to use these scripts immediately, then updating them shouldn't take 31 too long. The following was the state of the provider when these scripts 32 were written - check for changes and update the scripts accordingly, 33 34 provider perl { 35 probe sub-entry(subroutine, file, lineno) 36 probe sub-return(subroutine, file, lineno) 37 }; 38 39