| 1 | |
| 2 | Mathieu Desnoyers -- November 2005 |
| 3 | |
| 4 | This is a complete rework of genevent. |
| 5 | |
| 6 | The 'genevent' program parses event descriptions and generates |
| 7 | the inline functions to record events in the kernel. |
| 8 | |
| 9 | There are several files in the directory: |
| 10 | genevent.c, genevent.h, crc32.tab, parser.c and parser.h |
| 11 | |
| 12 | In fact, crc32.tab, parser.c and parser.h are the same files as |
| 13 | those in LTT library. |
| 14 | |
| 15 | Here is a brief description of how to use genevent. |
| 16 | |
| 17 | make |
| 18 | make install |
| 19 | |
| 20 | |
| 21 | * Add new events to the kernel with genevent |
| 22 | |
| 23 | su - |
| 24 | cd /usr/local/share/LinuxTraceToolkitViewer/facilities |
| 25 | cp process.xml yourfacility.xml |
| 26 | * edit yourfacility.xml to fit your needs. |
| 27 | cd /tmp |
| 28 | /usr/local/bin/genevent /usr/local/share/LinuxTraceToolkitViewer/yourfacility.xml |
| 29 | cp ltt-facility-yourfacility.h ltt-facility-id-yourfacility.h \ |
| 30 | /usr/src/linux-2.6.12-rc4-mm2-lttng-0.2/include/linux/ltt |
| 31 | cp ltt-facility-loader-yourfacility.c ltt-facility-loader-yourfacility.h \ |
| 32 | /usr/src/linux-2.6.12-rc4-mm2-lttng-0.2/ltt |
| 33 | * edit the kernel file you want to instrument |
| 34 | - Add #include <linux/ltt/ltt-facility-yourfacility.h> at the beginning |
| 35 | of the file. |
| 36 | - Add a call to the tracing functions. See their names and parameters in |
| 37 | /usr/src/linux-2.6.12-rc4-mm2-lttng-0.2/include/linux/ltt/ltt-facility-yourfacility.h |
| 38 | |
| 39 | |