Messages in this thread Patch in this message | | | From | Stephane Eranian <> | Subject | [PATCH v4 15/18] perf: add ABI reference sizes | Date | Fri, 27 Jan 2012 21:56:15 +0100 |
| |
This patch adds reference sizes for revision 1 and 2 of the perf_event ABI, i.e., the size of the perf_event_attr struct.
With Rev1: config2 was added = +8 bytes With Rev2: branch_sample_type was added = +8 bytes
Adds the definition for Rev1, Rev2.
This is useful for tools trying to decode the revision numbers based on the size of the struct.
Signed-off-by: Stephane Eranian <eranian@google.com> --- include/linux/perf_event.h | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 6d9d712..91452ed 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -195,6 +195,8 @@ enum perf_event_read_format { }; #define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */ +#define PERF_ATTR_SIZE_VER1 72 /* add: config2 */ +#define PERF_ATTR_SIZE_VER2 80 /* add: branch_sample_type */ /* * Hardware event_id to monitor via a performance monitoring event: -- 1.7.1
| |