diff options
author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-09-26 20:13:04 +0400 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-09-26 20:41:47 +0400 |
commit | e6b6f6795265ec19ff35572f527bb74c07ff9399 (patch) | |
tree | 144f0b7db761410bab5f0bd79631de316c5542a3 /tools | |
parent | 0807d2d8a381f4fc600ad481c3e77e5cdb624eed (diff) | |
download | linux-e6b6f6795265ec19ff35572f527bb74c07ff9399.tar.xz |
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>
Diffstat (limited to 'tools')
-rw-r--r-- | 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 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; } |