forked from luck/tmp_suning_uos_patched
perf tools: Add ability to synthesize event according to a sample
It's the counterpart of perf_session__parse_sample. v2: fixed mistakes found by David Ahern. v3: s/data/sample/ s/perf_event__change_sample/perf_event__synthesize_sample Reviewed-by: David Ahern <dsahern@gmail.com> Cc: Arun Sharma <asharma@fb.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: devel@openvz.org Link: http://lkml.kernel.org/r/1323266161-394927-3-git-send-email-avagin@openvz.org Signed-off-by: Andrew Vagin <avagin@openvz.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
parent
317df650c5
commit
74eec26fac
|
@ -199,6 +199,9 @@ const char *perf_event__name(unsigned int id);
|
||||||
int perf_event__parse_sample(const union perf_event *event, u64 type,
|
int perf_event__parse_sample(const union perf_event *event, u64 type,
|
||||||
int sample_size, bool sample_id_all,
|
int sample_size, bool sample_id_all,
|
||||||
struct perf_sample *sample, bool swapped);
|
struct perf_sample *sample, bool swapped);
|
||||||
|
int perf_event__synthesize_sample(union perf_event *event, u64 type,
|
||||||
|
const struct perf_sample *sample,
|
||||||
|
bool swapped);
|
||||||
|
|
||||||
size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp);
|
size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp);
|
||||||
size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
|
size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
|
||||||
|
|
|
@ -574,3 +574,82 @@ int perf_event__parse_sample(const union perf_event *event, u64 type,
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
int perf_event__synthesize_sample(union perf_event *event, u64 type,
|
||||||
|
const struct perf_sample *sample,
|
||||||
|
bool swapped)
|
||||||
|
{
|
||||||
|
u64 *array;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* used for cross-endian analysis. See git commit 65014ab3
|
||||||
|
* for why this goofiness is needed.
|
||||||
|
*/
|
||||||
|
union {
|
||||||
|
u64 val64;
|
||||||
|
u32 val32[2];
|
||||||
|
} u;
|
||||||
|
|
||||||
|
array = event->sample.array;
|
||||||
|
|
||||||
|
if (type & PERF_SAMPLE_IP) {
|
||||||
|
event->ip.ip = sample->ip;
|
||||||
|
array++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (type & PERF_SAMPLE_TID) {
|
||||||
|
u.val32[0] = sample->pid;
|
||||||
|
u.val32[1] = sample->tid;
|
||||||
|
if (swapped) {
|
||||||
|
/*
|
||||||
|
* Inverse of what is done in perf_event__parse_sample
|
||||||
|
*/
|
||||||
|
u.val32[0] = bswap_32(u.val32[0]);
|
||||||
|
u.val32[1] = bswap_32(u.val32[1]);
|
||||||
|
u.val64 = bswap_64(u.val64);
|
||||||
|
}
|
||||||
|
|
||||||
|
*array = u.val64;
|
||||||
|
array++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (type & PERF_SAMPLE_TIME) {
|
||||||
|
*array = sample->time;
|
||||||
|
array++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (type & PERF_SAMPLE_ADDR) {
|
||||||
|
*array = sample->addr;
|
||||||
|
array++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (type & PERF_SAMPLE_ID) {
|
||||||
|
*array = sample->id;
|
||||||
|
array++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (type & PERF_SAMPLE_STREAM_ID) {
|
||||||
|
*array = sample->stream_id;
|
||||||
|
array++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (type & PERF_SAMPLE_CPU) {
|
||||||
|
u.val32[0] = sample->cpu;
|
||||||
|
if (swapped) {
|
||||||
|
/*
|
||||||
|
* Inverse of what is done in perf_event__parse_sample
|
||||||
|
*/
|
||||||
|
u.val32[0] = bswap_32(u.val32[0]);
|
||||||
|
u.val64 = bswap_64(u.val64);
|
||||||
|
}
|
||||||
|
*array = u.val64;
|
||||||
|
array++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (type & PERF_SAMPLE_PERIOD) {
|
||||||
|
*array = sample->period;
|
||||||
|
array++;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
|
@ -134,6 +134,14 @@ static inline int perf_session__parse_sample(struct perf_session *session,
|
||||||
session->header.needs_swap);
|
session->header.needs_swap);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static inline int perf_session__synthesize_sample(struct perf_session *session,
|
||||||
|
union perf_event *event,
|
||||||
|
const struct perf_sample *sample)
|
||||||
|
{
|
||||||
|
return perf_event__synthesize_sample(event, session->sample_type,
|
||||||
|
sample, session->header.needs_swap);
|
||||||
|
}
|
||||||
|
|
||||||
struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
|
struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
|
||||||
unsigned int type);
|
unsigned int type);
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue
Block a user