Commit-ID: e6b6f6795265ec19ff35572f527bb74c07ff9399
Gitweb: http://git.kernel.org/tip/e6b6f6795265ec19ff35572f527bb74c07ff9399
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Wed, 26 Sep 2012 13:13:04 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 26 Sep 2012 13:41:47 -0300
perf evsel: Handle endianity in intval method
We were relying on the info in pevent, but since we have it in
perf_evsel, set up by the perf_session routine if read from a perf.data
file or by whoever creates the evsels, use it.
New 'perf test' entries will use it to parse locally generated events,
in a non perf.data centered workflow.
As well as use byteswap.h to get per arch optimized swap routines, like
other parts of perf (header, perf_evsel__parse_sample, symbol, etc)
already do.
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-8tjuxk09mlsfmh7macgkxsip@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/evsel.c | 38 ++++++++++++++++++++++++++++++++++----
1 files changed, 34 insertions(+), 4 deletions(-)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index fe9581b..c78e42a 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1108,13 +1108,43 @@ u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample,
const char *name)
{
struct format_field *field = perf_evsel__field(evsel, name);
- u64 val;
+ void *ptr;
+ u64 value;
if (!field)
return 0;
- val = pevent_read_number(evsel->tp_format->pevent,
- sample->raw_data + field->offset, field->size);
- return val;
+ ptr = sample->raw_data + field->offset;
+ switch (field->size) {
+ case 1:
+ return *(u8 *)ptr;
+ case 2:
+ value = *(u16 *)ptr;
+ break;
+ case 4:
+ value = *(u32 *)ptr;
+ break;
+ case 8:
+ value = *(u64 *)ptr;
+ break;
+ default:
+ return 0;
+ }
+
+ if (!evsel->needs_swap)
+ return value;
+
+ switch (field->size) {
+ case 2:
+ return bswap_16(value);
+ case 4:
+ return bswap_32(value);
+ case 8:
+ return bswap_64(value);
+ default:
+ return 0;
+ }
+
+ return 0;
}
--
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