aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorArnaldo Carvalho de Melo <acme@redhat.com>2012-09-26 13:13:04 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-09-26 13:41:47 -0300
commite6b6f6795265ec19ff35572f527bb74c07ff9399 (patch)
tree144f0b7db761410bab5f0bd79631de316c5542a3
parent0807d2d8a381f4fc600ad481c3e77e5cdb624eed (diff)
downloadlinux-linaro-stable-e6b6f6795265ec19ff35572f527bb74c07ff9399.tar.gz
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@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-8tjuxk09mlsfmh7macgkxsip@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/util/evsel.c38
1 files changed, 34 insertions, 4 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index fe9581b0323c..c78e42ab9770 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;
}