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| 1 | Perf-Trace-Util version 0.01 | ||
| 2 | ============================ | ||
| 3 | |||
| 4 | This module contains utility functions for use with perf trace. | ||
| 5 | |||
| 6 | Core.pm and Util.pm are pure Perl modules; Core.pm contains routines | ||
| 7 | that the core perf support for Perl calls on and should always be | ||
| 8 | 'used', while Util.pm contains useful but optional utility functions | ||
| 9 | that scripts may want to use. Context.pm contains the Perl->C | ||
| 10 | interface that allows scripts to access data in the embedding perf | ||
| 11 | executable; scripts wishing to do that should 'use Context.pm'. | ||
| 12 | |||
| 13 | The Perl->C perf interface is completely driven by Context.xs. If you | ||
| 14 | want to add new Perl functions that end up accessing C data in the | ||
| 15 | perf executable, you add desciptions of the new functions here. | ||
| 16 | scripting_context is a pointer to the perf data in the perf executable | ||
| 17 | that you want to access - it's passed as the second parameter, | ||
| 18 | $context, to all handler functions. | ||
| 19 | |||
| 20 | After you do that: | ||
| 21 | |||
| 22 | perl Makefile.PL # to create a Makefile for the next step | ||
| 23 | make # to create Context.c | ||
| 24 | |||
| 25 | edit Context.c to add const to the char* file = __FILE__ line in | ||
| 26 | XS(boot_Perf__Trace__Context) to silence a warning/error. | ||
| 27 | |||
| 28 | You can delete the Makefile, object files and anything else that was | ||
| 29 | generated e.g. blib and shared library, etc, except for of course | ||
| 30 | Context.c | ||
| 31 | |||
| 32 | You should then be able to run the normal perf make as usual. | ||
| 33 | |||
| 34 | INSTALLATION | ||
| 35 | |||
| 36 | Building perf with perf trace Perl scripting should install this | ||
| 37 | module in the right place. | ||
| 38 | |||
| 39 | You should make sure libperl and ExtUtils/Embed.pm are installed first | ||
| 40 | e.g. apt-get install libperl-dev or yum install perl-ExtUtils-Embed. | ||
| 41 | |||
| 42 | DEPENDENCIES | ||
| 43 | |||
| 44 | This module requires these other modules and libraries: | ||
| 45 | |||
| 46 | None | ||
| 47 | |||
| 48 | COPYRIGHT AND LICENCE | ||
| 49 | |||
| 50 | Copyright (C) 2009 by Tom Zanussi <tzanussi@gmail.com> | ||
| 51 | |||
| 52 | This library is free software; you can redistribute it and/or modify | ||
| 53 | it under the same terms as Perl itself, either Perl version 5.10.0 or, | ||
| 54 | at your option, any later version of Perl 5 you may have available. | ||
| 55 | |||
| 56 | Alternatively, this software may be distributed under the terms of the | ||
| 57 | GNU General Public License ("GPL") version 2 as published by the Free | ||
| 58 | Software Foundation. | ||
| 59 | |||
