README 2.1 KB

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  1. Perf-Trace-Util version 0.01
  2. ============================
  3. This module contains utility functions for use with perf script.
  4. Core.pm and Util.pm are pure Perl modules; Core.pm contains routines
  5. that the core perf support for Perl calls on and should always be
  6. 'used', while Util.pm contains useful but optional utility functions
  7. that scripts may want to use. Context.pm contains the Perl->C
  8. interface that allows scripts to access data in the embedding perf
  9. executable; scripts wishing to do that should 'use Context.pm'.
  10. The Perl->C perf interface is completely driven by Context.xs. If you
  11. want to add new Perl functions that end up accessing C data in the
  12. perf executable, you add desciptions of the new functions here.
  13. scripting_context is a pointer to the perf data in the perf executable
  14. that you want to access - it's passed as the second parameter,
  15. $context, to all handler functions.
  16. After you do that:
  17. perl Makefile.PL # to create a Makefile for the next step
  18. make # to create Context.c
  19. edit Context.c to add const to the char* file = __FILE__ line in
  20. XS(boot_Perf__Trace__Context) to silence a warning/error.
  21. You can delete the Makefile, object files and anything else that was
  22. generated e.g. blib and shared library, etc, except for of course
  23. Context.c
  24. You should then be able to run the normal perf make as usual.
  25. INSTALLATION
  26. Building perf with perf script Perl scripting should install this
  27. module in the right place.
  28. You should make sure libperl and ExtUtils/Embed.pm are installed first
  29. e.g. apt-get install libperl-dev or yum install perl-ExtUtils-Embed.
  30. DEPENDENCIES
  31. This module requires these other modules and libraries:
  32. None
  33. COPYRIGHT AND LICENCE
  34. Copyright (C) 2009 by Tom Zanussi <tzanussi@gmail.com>
  35. This library is free software; you can redistribute it and/or modify
  36. it under the same terms as Perl itself, either Perl version 5.10.0 or,
  37. at your option, any later version of Perl 5 you may have available.
  38. Alternatively, this software may be distributed under the terms of the
  39. GNU General Public License ("GPL") version 2 as published by the Free
  40. Software Foundation.