Messages in this thread Patch in this message | | | Date | Wed, 10 Mar 2010 13:18:55 GMT | From | tip-bot for Peter Zijlstra <> | Subject | [tip:perf/pebs] perf: Add attr->precise support to raw event parsing |
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Commit-ID: 69fef0d2e2c2c049ef4207a52e78b50d527bd85a Gitweb: http://git.kernel.org/tip/69fef0d2e2c2c049ef4207a52e78b50d527bd85a Author: Peter Zijlstra <a.p.zijlstra@chello.nl> AuthorDate: Thu, 4 Mar 2010 13:57:24 +0100 Committer: Ingo Molnar <mingo@elte.hu> CommitDate: Wed, 10 Mar 2010 13:23:32 +0100
perf: Add attr->precise support to raw event parsing
Minimal userspace interface to the new 'precise' events flag.
Can be used like "perf top -e r00c0p" which will use PEBS to sample retired instructions.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: paulus@samba.org Cc: eranian@google.com Cc: robert.richter@amd.com Cc: fweisbec@gmail.com LKML-Reference: <20100304140100.468665803@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu> --- tools/perf/util/parse-events.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 05d0c5c..a201445 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -656,6 +656,10 @@ parse_raw_event(const char **strp, struct perf_event_attr *attr) return EVT_FAILED; n = hex2u64(str + 1, &config); if (n > 0) { + if (str[n+1] == 'p') { + attr->precise = 1; + n++; + } *strp = str + n + 1; attr->type = PERF_TYPE_RAW; attr->config = config;
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