Messages in this thread Patch in this message | | | Date | Fri, 9 Mar 2012 05:30:04 -0800 | From | tip-bot for Stephane Eranian <> | Subject | [tip:perf/hw-branch-sampling] perf: Add ABI reference sizes |
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Commit-ID: cb5d76999029ae7a517cb07dfa732c1b5a934fc2 Gitweb: http://git.kernel.org/tip/cb5d76999029ae7a517cb07dfa732c1b5a934fc2 Author: Stephane Eranian <eranian@google.com> AuthorDate: Thu, 9 Feb 2012 23:21:05 +0100 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Fri, 9 Mar 2012 08:26:05 +0100
perf: Add ABI reference sizes
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> Cc: peterz@infradead.org Cc: acme@redhat.com Cc: robert.richter@amd.com Cc: ming.m.lin@intel.com Cc: andi@firstfloor.org Cc: asharma@fb.com Cc: ravitillo@lbl.gov Cc: vweaver1@eecs.utk.edu Cc: khandual@linux.vnet.ibm.com Cc: dsahern@gmail.com Link: http://lkml.kernel.org/r/1328826068-11713-16-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar <mingo@elte.hu> --- 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 fbbf5e5..bd9f55a 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -192,6 +192,8 @@ 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:
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