Add perf_session__deliver_synth_attr_event that synthesizes a
perf_record_header_attr event with one id. Remove use of
perf_event__synthesize_attr that necessitates the use of the dummy
tool in order to pass the session.
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/util/arm-spe.c | 49 ++++++++-----------------------------
tools/perf/util/cs-etm.c | 33 ++-----------------------
tools/perf/util/intel-bts.c | 31 +----------------------
tools/perf/util/intel-pt.c | 24 +-----------------
tools/perf/util/session.c | 24 ++++++++++++++++++
tools/perf/util/session.h | 3 +++
6 files changed, 41 insertions(+), 123 deletions(-)
diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index afbd5869f6bf..fa40f3cb6266 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c
@@ -1073,35 +1073,6 @@ static void arm_spe_print_info(__u64 *arr)
fprintf(stdout, arm_spe_info_fmts[ARM_SPE_PMU_TYPE], arr[ARM_SPE_PMU_TYPE]);
}
-struct arm_spe_synth {
- struct perf_tool dummy_tool;
- struct perf_session *session;
-};
-
-static int arm_spe_event_synth(struct perf_tool *tool,
- union perf_event *event,
- struct perf_sample *sample __maybe_unused,
- struct machine *machine __maybe_unused)
-{
- struct arm_spe_synth *arm_spe_synth =
- container_of(tool, struct arm_spe_synth, dummy_tool);
-
- return perf_session__deliver_synth_event(arm_spe_synth->session,
- event, NULL);
-}
-
-static int arm_spe_synth_event(struct perf_session *session,
- struct perf_event_attr *attr, u64 id)
-{
- struct arm_spe_synth arm_spe_synth;
-
- memset(&arm_spe_synth, 0, sizeof(struct arm_spe_synth));
- arm_spe_synth.session = session;
-
- return perf_event__synthesize_attr(&arm_spe_synth.dummy_tool, attr, 1,
- &id, arm_spe_event_synth);
-}
-
static void arm_spe_set_event_name(struct evlist *evlist, u64 id,
const char *name)
{
@@ -1172,7 +1143,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
spe->sample_flc = true;
/* Level 1 data cache miss */
- err = arm_spe_synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err)
return err;
spe->l1d_miss_id = id;
@@ -1180,7 +1151,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
id += 1;
/* Level 1 data cache access */
- err = arm_spe_synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err)
return err;
spe->l1d_access_id = id;
@@ -1192,7 +1163,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
spe->sample_llc = true;
/* Last level cache miss */
- err = arm_spe_synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err)
return err;
spe->llc_miss_id = id;
@@ -1200,7 +1171,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
id += 1;
/* Last level cache access */
- err = arm_spe_synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err)
return err;
spe->llc_access_id = id;
@@ -1212,7 +1183,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
spe->sample_tlb = true;
/* TLB miss */
- err = arm_spe_synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err)
return err;
spe->tlb_miss_id = id;
@@ -1220,7 +1191,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
id += 1;
/* TLB access */
- err = arm_spe_synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err)
return err;
spe->tlb_access_id = id;
@@ -1232,7 +1203,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
spe->sample_branch = true;
/* Branch miss */
- err = arm_spe_synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err)
return err;
spe->branch_miss_id = id;
@@ -1244,7 +1215,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
spe->sample_remote_access = true;
/* Remote access */
- err = arm_spe_synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err)
return err;
spe->remote_access_id = id;
@@ -1255,7 +1226,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
if (spe->synth_opts.mem) {
spe->sample_memory = true;
- err = arm_spe_synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err)
return err;
spe->memory_id = id;
@@ -1276,7 +1247,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
attr.config = PERF_COUNT_HW_INSTRUCTIONS;
attr.sample_period = spe->synth_opts.period;
spe->instructions_sample_period = attr.sample_period;
- err = arm_spe_synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err)
return err;
spe->instructions_id = id;
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
index 5e9fbcfad7d4..7fd976ea954b 100644
--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -1595,35 +1595,6 @@ static int cs_etm__synth_branch_sample(struct cs_etm_queue *etmq,
return ret;
}
-struct cs_etm_synth {
- struct perf_tool dummy_tool;
- struct perf_session *session;
-};
-
-static int cs_etm__event_synth(struct perf_tool *tool,
- union perf_event *event,
- struct perf_sample *sample __maybe_unused,
- struct machine *machine __maybe_unused)
-{
- struct cs_etm_synth *cs_etm_synth =
- container_of(tool, struct cs_etm_synth, dummy_tool);
-
- return perf_session__deliver_synth_event(cs_etm_synth->session,
- event, NULL);
-}
-
-static int cs_etm__synth_event(struct perf_session *session,
- struct perf_event_attr *attr, u64 id)
-{
- struct cs_etm_synth cs_etm_synth;
-
- memset(&cs_etm_synth, 0, sizeof(struct cs_etm_synth));
- cs_etm_synth.session = session;
-
- return perf_event__synthesize_attr(&cs_etm_synth.dummy_tool, attr, 1,
- &id, cs_etm__event_synth);
-}
-
static int cs_etm__synth_events(struct cs_etm_auxtrace *etm,
struct perf_session *session)
{
@@ -1675,7 +1646,7 @@ static int cs_etm__synth_events(struct cs_etm_auxtrace *etm,
attr.config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS;
attr.sample_period = 1;
attr.sample_type |= PERF_SAMPLE_ADDR;
- err = cs_etm__synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err)
return err;
etm->branches_sample_type = attr.sample_type;
@@ -1698,7 +1669,7 @@ static int cs_etm__synth_events(struct cs_etm_auxtrace *etm,
attr.config = PERF_COUNT_HW_INSTRUCTIONS;
attr.sample_period = etm->synth_opts.period;
etm->instructions_sample_period = attr.sample_period;
- err = cs_etm__synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err)
return err;
etm->instructions_sample_type = attr.sample_type;
diff --git a/tools/perf/util/intel-bts.c b/tools/perf/util/intel-bts.c
index ec1b3bd9f530..160d346cb450 100644
--- a/tools/perf/util/intel-bts.c
+++ b/tools/perf/util/intel-bts.c
@@ -737,35 +737,6 @@ static bool intel_bts_evsel_is_auxtrace(struct perf_session *session,
return evsel->core.attr.type == bts->pmu_type;
}
-struct intel_bts_synth {
- struct perf_tool dummy_tool;
- struct perf_session *session;
-};
-
-static int intel_bts_event_synth(struct perf_tool *tool,
- union perf_event *event,
- struct perf_sample *sample __maybe_unused,
- struct machine *machine __maybe_unused)
-{
- struct intel_bts_synth *intel_bts_synth =
- container_of(tool, struct intel_bts_synth, dummy_tool);
-
- return perf_session__deliver_synth_event(intel_bts_synth->session,
- event, NULL);
-}
-
-static int intel_bts_synth_event(struct perf_session *session,
- struct perf_event_attr *attr, u64 id)
-{
- struct intel_bts_synth intel_bts_synth;
-
- memset(&intel_bts_synth, 0, sizeof(struct intel_bts_synth));
- intel_bts_synth.session = session;
-
- return perf_event__synthesize_attr(&intel_bts_synth.dummy_tool, attr, 1,
- &id, intel_bts_event_synth);
-}
-
static int intel_bts_synth_events(struct intel_bts *bts,
struct perf_session *session)
{
@@ -814,7 +785,7 @@ static int intel_bts_synth_events(struct intel_bts *bts,
attr.sample_type |= PERF_SAMPLE_ADDR;
pr_debug("Synthesizing 'branches' event with id %" PRIu64 " sample type %#" PRIx64 "\n",
id, (u64)attr.sample_type);
- err = intel_bts_synth_event(session, &attr, id);
+ err = perf_session__deliver_synth_attr_event(session, &attr, id);
if (err) {
pr_err("%s: failed to synthesize 'branches' event type\n",
__func__);
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index d6d7b7512505..1fc03bfd14c3 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -3659,37 +3659,15 @@ static int intel_pt_queue_data(struct perf_session *session,
data_offset, timestamp);
}
-struct intel_pt_synth {
- struct perf_tool dummy_tool;
- struct perf_session *session;
-};
-
-static int intel_pt_event_synth(struct perf_tool *tool,
- union perf_event *event,
- struct perf_sample *sample __maybe_unused,
- struct machine *machine __maybe_unused)
-{
- struct intel_pt_synth *intel_pt_synth =
- container_of(tool, struct intel_pt_synth, dummy_tool);
-
- return perf_session__deliver_synth_event(intel_pt_synth->session, event,
- NULL);
-}
-
static int intel_pt_synth_event(struct perf_session *session, const char *name,
struct perf_event_attr *attr, u64 id)
{
- struct intel_pt_synth intel_pt_synth;
int err;
pr_debug("Synthesizing '%s' event with id %" PRIu64 " sample type %#" PRIx64 "\n",
name, id, (u64)attr->sample_type);
- memset(&intel_pt_synth, 0, sizeof(struct intel_pt_synth));
- intel_pt_synth.session = session;
-
- err = perf_event__synthesize_attr(&intel_pt_synth.dummy_tool, attr, 1,
- &id, intel_pt_event_synth);
+ err = perf_session__deliver_synth_attr_event(session, attr, id);
if (err)
pr_err("%s: failed to synthesize '%s' event type\n",
__func__, name);
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 5596bed1b8c8..18a8f4a84045 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1764,6 +1764,30 @@ int perf_session__deliver_synth_event(struct perf_session *session,
return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0, NULL);
}
+int perf_session__deliver_synth_attr_event(struct perf_session *session,
+ const struct perf_event_attr *attr,
+ u64 id)
+{
+ union {
+ struct {
+ struct perf_record_header_attr attr;
+ u64 ids[1];
+ } attr_id;
+ union perf_event ev;
+ } ev = {
+ .attr_id.attr.header.type = PERF_RECORD_HEADER_ATTR,
+ .attr_id.attr.header.size = sizeof(ev.attr_id),
+ .attr_id.ids[0] = id,
+ };
+
+ if (attr->size != sizeof(ev.attr_id.attr.attr)) {
+ pr_debug("Unexpected perf_event_attr size\n");
+ return -EINVAL;
+ }
+ ev.attr_id.attr.attr = *attr;
+ return perf_session__deliver_synth_event(session, &ev.ev, NULL);
+}
+
static void event_swap(union perf_event *event, bool sample_id_all)
{
perf_event__swap_op swap;
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 4c29dc86956f..cc28976bb00e 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -154,6 +154,9 @@ extern volatile int session_done;
int perf_session__deliver_synth_event(struct perf_session *session,
union perf_event *event,
struct perf_sample *sample);
+int perf_session__deliver_synth_attr_event(struct perf_session *session,
+ const struct perf_event_attr *attr,
+ u64 id);
int perf_session__dsos_hit_all(struct perf_session *session);
--
2.45.2.993.g49e7a77208-googOn 7/12/24 19:10, Ian Rogers wrote: > Add perf_session__deliver_synth_attr_event that synthesizes a > perf_record_header_attr event with one id. Remove use of > perf_event__synthesize_attr that necessitates the use of the dummy > tool in order to pass the session. > > Signed-off-by: Ian Rogers <irogers@google.com> This patch LGTM, and tested for Arm SPE: Tested-by: Leo Yan <leo.yan@arm.com> But the patches 04 and 15 cannot be applied on the top of tmp.perf-tools-next branch. You might need to rebase the series. Thanks, Leo
On 12/07/24 21:10, Ian Rogers wrote:
> Add perf_session__deliver_synth_attr_event that synthesizes a
> perf_record_header_attr event with one id. Remove use of
> perf_event__synthesize_attr that necessitates the use of the dummy
> tool in order to pass the session.
>
> Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
For pt/bts:
Tested-by: Adrian Hunter <adrian.hunter@intel.com>
> ---
> tools/perf/util/arm-spe.c | 49 ++++++++-----------------------------
> tools/perf/util/cs-etm.c | 33 ++-----------------------
> tools/perf/util/intel-bts.c | 31 +----------------------
> tools/perf/util/intel-pt.c | 24 +-----------------
> tools/perf/util/session.c | 24 ++++++++++++++++++
> tools/perf/util/session.h | 3 +++
> 6 files changed, 41 insertions(+), 123 deletions(-)
>
> diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
> index afbd5869f6bf..fa40f3cb6266 100644
> --- a/tools/perf/util/arm-spe.c
> +++ b/tools/perf/util/arm-spe.c
> @@ -1073,35 +1073,6 @@ static void arm_spe_print_info(__u64 *arr)
> fprintf(stdout, arm_spe_info_fmts[ARM_SPE_PMU_TYPE], arr[ARM_SPE_PMU_TYPE]);
> }
>
> -struct arm_spe_synth {
> - struct perf_tool dummy_tool;
> - struct perf_session *session;
> -};
> -
> -static int arm_spe_event_synth(struct perf_tool *tool,
> - union perf_event *event,
> - struct perf_sample *sample __maybe_unused,
> - struct machine *machine __maybe_unused)
> -{
> - struct arm_spe_synth *arm_spe_synth =
> - container_of(tool, struct arm_spe_synth, dummy_tool);
> -
> - return perf_session__deliver_synth_event(arm_spe_synth->session,
> - event, NULL);
> -}
> -
> -static int arm_spe_synth_event(struct perf_session *session,
> - struct perf_event_attr *attr, u64 id)
> -{
> - struct arm_spe_synth arm_spe_synth;
> -
> - memset(&arm_spe_synth, 0, sizeof(struct arm_spe_synth));
> - arm_spe_synth.session = session;
> -
> - return perf_event__synthesize_attr(&arm_spe_synth.dummy_tool, attr, 1,
> - &id, arm_spe_event_synth);
> -}
> -
> static void arm_spe_set_event_name(struct evlist *evlist, u64 id,
> const char *name)
> {
> @@ -1172,7 +1143,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
> spe->sample_flc = true;
>
> /* Level 1 data cache miss */
> - err = arm_spe_synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err)
> return err;
> spe->l1d_miss_id = id;
> @@ -1180,7 +1151,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
> id += 1;
>
> /* Level 1 data cache access */
> - err = arm_spe_synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err)
> return err;
> spe->l1d_access_id = id;
> @@ -1192,7 +1163,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
> spe->sample_llc = true;
>
> /* Last level cache miss */
> - err = arm_spe_synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err)
> return err;
> spe->llc_miss_id = id;
> @@ -1200,7 +1171,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
> id += 1;
>
> /* Last level cache access */
> - err = arm_spe_synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err)
> return err;
> spe->llc_access_id = id;
> @@ -1212,7 +1183,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
> spe->sample_tlb = true;
>
> /* TLB miss */
> - err = arm_spe_synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err)
> return err;
> spe->tlb_miss_id = id;
> @@ -1220,7 +1191,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
> id += 1;
>
> /* TLB access */
> - err = arm_spe_synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err)
> return err;
> spe->tlb_access_id = id;
> @@ -1232,7 +1203,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
> spe->sample_branch = true;
>
> /* Branch miss */
> - err = arm_spe_synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err)
> return err;
> spe->branch_miss_id = id;
> @@ -1244,7 +1215,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
> spe->sample_remote_access = true;
>
> /* Remote access */
> - err = arm_spe_synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err)
> return err;
> spe->remote_access_id = id;
> @@ -1255,7 +1226,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
> if (spe->synth_opts.mem) {
> spe->sample_memory = true;
>
> - err = arm_spe_synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err)
> return err;
> spe->memory_id = id;
> @@ -1276,7 +1247,7 @@ arm_spe_synth_events(struct arm_spe *spe, struct perf_session *session)
> attr.config = PERF_COUNT_HW_INSTRUCTIONS;
> attr.sample_period = spe->synth_opts.period;
> spe->instructions_sample_period = attr.sample_period;
> - err = arm_spe_synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err)
> return err;
> spe->instructions_id = id;
> diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
> index 5e9fbcfad7d4..7fd976ea954b 100644
> --- a/tools/perf/util/cs-etm.c
> +++ b/tools/perf/util/cs-etm.c
> @@ -1595,35 +1595,6 @@ static int cs_etm__synth_branch_sample(struct cs_etm_queue *etmq,
> return ret;
> }
>
> -struct cs_etm_synth {
> - struct perf_tool dummy_tool;
> - struct perf_session *session;
> -};
> -
> -static int cs_etm__event_synth(struct perf_tool *tool,
> - union perf_event *event,
> - struct perf_sample *sample __maybe_unused,
> - struct machine *machine __maybe_unused)
> -{
> - struct cs_etm_synth *cs_etm_synth =
> - container_of(tool, struct cs_etm_synth, dummy_tool);
> -
> - return perf_session__deliver_synth_event(cs_etm_synth->session,
> - event, NULL);
> -}
> -
> -static int cs_etm__synth_event(struct perf_session *session,
> - struct perf_event_attr *attr, u64 id)
> -{
> - struct cs_etm_synth cs_etm_synth;
> -
> - memset(&cs_etm_synth, 0, sizeof(struct cs_etm_synth));
> - cs_etm_synth.session = session;
> -
> - return perf_event__synthesize_attr(&cs_etm_synth.dummy_tool, attr, 1,
> - &id, cs_etm__event_synth);
> -}
> -
> static int cs_etm__synth_events(struct cs_etm_auxtrace *etm,
> struct perf_session *session)
> {
> @@ -1675,7 +1646,7 @@ static int cs_etm__synth_events(struct cs_etm_auxtrace *etm,
> attr.config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS;
> attr.sample_period = 1;
> attr.sample_type |= PERF_SAMPLE_ADDR;
> - err = cs_etm__synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err)
> return err;
> etm->branches_sample_type = attr.sample_type;
> @@ -1698,7 +1669,7 @@ static int cs_etm__synth_events(struct cs_etm_auxtrace *etm,
> attr.config = PERF_COUNT_HW_INSTRUCTIONS;
> attr.sample_period = etm->synth_opts.period;
> etm->instructions_sample_period = attr.sample_period;
> - err = cs_etm__synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err)
> return err;
> etm->instructions_sample_type = attr.sample_type;
> diff --git a/tools/perf/util/intel-bts.c b/tools/perf/util/intel-bts.c
> index ec1b3bd9f530..160d346cb450 100644
> --- a/tools/perf/util/intel-bts.c
> +++ b/tools/perf/util/intel-bts.c
> @@ -737,35 +737,6 @@ static bool intel_bts_evsel_is_auxtrace(struct perf_session *session,
> return evsel->core.attr.type == bts->pmu_type;
> }
>
> -struct intel_bts_synth {
> - struct perf_tool dummy_tool;
> - struct perf_session *session;
> -};
> -
> -static int intel_bts_event_synth(struct perf_tool *tool,
> - union perf_event *event,
> - struct perf_sample *sample __maybe_unused,
> - struct machine *machine __maybe_unused)
> -{
> - struct intel_bts_synth *intel_bts_synth =
> - container_of(tool, struct intel_bts_synth, dummy_tool);
> -
> - return perf_session__deliver_synth_event(intel_bts_synth->session,
> - event, NULL);
> -}
> -
> -static int intel_bts_synth_event(struct perf_session *session,
> - struct perf_event_attr *attr, u64 id)
> -{
> - struct intel_bts_synth intel_bts_synth;
> -
> - memset(&intel_bts_synth, 0, sizeof(struct intel_bts_synth));
> - intel_bts_synth.session = session;
> -
> - return perf_event__synthesize_attr(&intel_bts_synth.dummy_tool, attr, 1,
> - &id, intel_bts_event_synth);
> -}
> -
> static int intel_bts_synth_events(struct intel_bts *bts,
> struct perf_session *session)
> {
> @@ -814,7 +785,7 @@ static int intel_bts_synth_events(struct intel_bts *bts,
> attr.sample_type |= PERF_SAMPLE_ADDR;
> pr_debug("Synthesizing 'branches' event with id %" PRIu64 " sample type %#" PRIx64 "\n",
> id, (u64)attr.sample_type);
> - err = intel_bts_synth_event(session, &attr, id);
> + err = perf_session__deliver_synth_attr_event(session, &attr, id);
> if (err) {
> pr_err("%s: failed to synthesize 'branches' event type\n",
> __func__);
> diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
> index d6d7b7512505..1fc03bfd14c3 100644
> --- a/tools/perf/util/intel-pt.c
> +++ b/tools/perf/util/intel-pt.c
> @@ -3659,37 +3659,15 @@ static int intel_pt_queue_data(struct perf_session *session,
> data_offset, timestamp);
> }
>
> -struct intel_pt_synth {
> - struct perf_tool dummy_tool;
> - struct perf_session *session;
> -};
> -
> -static int intel_pt_event_synth(struct perf_tool *tool,
> - union perf_event *event,
> - struct perf_sample *sample __maybe_unused,
> - struct machine *machine __maybe_unused)
> -{
> - struct intel_pt_synth *intel_pt_synth =
> - container_of(tool, struct intel_pt_synth, dummy_tool);
> -
> - return perf_session__deliver_synth_event(intel_pt_synth->session, event,
> - NULL);
> -}
> -
> static int intel_pt_synth_event(struct perf_session *session, const char *name,
> struct perf_event_attr *attr, u64 id)
> {
> - struct intel_pt_synth intel_pt_synth;
> int err;
>
> pr_debug("Synthesizing '%s' event with id %" PRIu64 " sample type %#" PRIx64 "\n",
> name, id, (u64)attr->sample_type);
>
> - memset(&intel_pt_synth, 0, sizeof(struct intel_pt_synth));
> - intel_pt_synth.session = session;
> -
> - err = perf_event__synthesize_attr(&intel_pt_synth.dummy_tool, attr, 1,
> - &id, intel_pt_event_synth);
> + err = perf_session__deliver_synth_attr_event(session, attr, id);
> if (err)
> pr_err("%s: failed to synthesize '%s' event type\n",
> __func__, name);
> diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
> index 5596bed1b8c8..18a8f4a84045 100644
> --- a/tools/perf/util/session.c
> +++ b/tools/perf/util/session.c
> @@ -1764,6 +1764,30 @@ int perf_session__deliver_synth_event(struct perf_session *session,
> return machines__deliver_event(&session->machines, evlist, event, sample, tool, 0, NULL);
> }
>
> +int perf_session__deliver_synth_attr_event(struct perf_session *session,
> + const struct perf_event_attr *attr,
> + u64 id)
> +{
> + union {
> + struct {
> + struct perf_record_header_attr attr;
> + u64 ids[1];
> + } attr_id;
> + union perf_event ev;
> + } ev = {
> + .attr_id.attr.header.type = PERF_RECORD_HEADER_ATTR,
> + .attr_id.attr.header.size = sizeof(ev.attr_id),
> + .attr_id.ids[0] = id,
> + };
> +
> + if (attr->size != sizeof(ev.attr_id.attr.attr)) {
> + pr_debug("Unexpected perf_event_attr size\n");
> + return -EINVAL;
> + }
> + ev.attr_id.attr.attr = *attr;
> + return perf_session__deliver_synth_event(session, &ev.ev, NULL);
> +}
> +
> static void event_swap(union perf_event *event, bool sample_id_all)
> {
> perf_event__swap_op swap;
> diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
> index 4c29dc86956f..cc28976bb00e 100644
> --- a/tools/perf/util/session.h
> +++ b/tools/perf/util/session.h
> @@ -154,6 +154,9 @@ extern volatile int session_done;
> int perf_session__deliver_synth_event(struct perf_session *session,
> union perf_event *event,
> struct perf_sample *sample);
> +int perf_session__deliver_synth_attr_event(struct perf_session *session,
> + const struct perf_event_attr *attr,
> + u64 id);
>
> int perf_session__dsos_hit_all(struct perf_session *session);
>
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