[PATCH 7/8] perf auxtrace: Add auxtrace_record__read_finish()

From: Arnaldo Carvalho de Melo
Date: Thu Feb 20 2020 - 20:53:52 EST

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From: Adrian Hunter <adrian.hunter@xxxxxxxxx>

All ->read_finish() implementations are doing the same thing. Add a
helper function so that they can share the same implementation.

Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Reviewed-by: Leo Yan <leo.yan@xxxxxxxxxx>
Tested-by: Leo Yan <leo.yan@xxxxxxxxxx>
Reviewed-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Kim Phillips <kim.phillips@xxxxxxx>
Cc: Wei Li <liwei391@xxxxxxxxxx>
Link: http://lore.kernel.org/lkml/20200217082300.6301-1-adrian.hunter@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/arch/arm/util/cs-etm.c | 21 ++-------------------
tools/perf/arch/arm64/util/arm-spe.c | 20 ++------------------
tools/perf/arch/x86/util/intel-bts.c | 20 ++------------------
tools/perf/arch/x86/util/intel-pt.c | 20 ++------------------
tools/perf/util/auxtrace.c | 22 +++++++++++++++++++++-
tools/perf/util/auxtrace.h | 6 ++++++
6 files changed, 35 insertions(+), 74 deletions(-)

diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c
index 60141c3007a9..941f814820b8 100644
--- a/tools/perf/arch/arm/util/cs-etm.c
+++ b/tools/perf/arch/arm/util/cs-etm.c
@@ -858,24 +858,6 @@ static void cs_etm_recording_free(struct auxtrace_record *itr)
free(ptr);
}

-static int cs_etm_read_finish(struct auxtrace_record *itr, int idx)
-{
- struct cs_etm_recording *ptr =
- container_of(itr, struct cs_etm_recording, itr);
- struct evsel *evsel;
-
- evlist__for_each_entry(ptr->evlist, evsel) {
- if (evsel->core.attr.type == ptr->cs_etm_pmu->type) {
- if (evsel->disabled)
- return 0;
- return perf_evlist__enable_event_idx(ptr->evlist,
- evsel, idx);
- }
- }
-
- return -EINVAL;
-}
-
struct auxtrace_record *cs_etm_record_init(int *err)
{
struct perf_pmu *cs_etm_pmu;
@@ -895,6 +877,7 @@ struct auxtrace_record *cs_etm_record_init(int *err)
}

ptr->cs_etm_pmu = cs_etm_pmu;
+ ptr->itr.pmu = cs_etm_pmu;
ptr->itr.parse_snapshot_options = cs_etm_parse_snapshot_options;
ptr->itr.recording_options = cs_etm_recording_options;
ptr->itr.info_priv_size = cs_etm_info_priv_size;
@@ -904,7 +887,7 @@ struct auxtrace_record *cs_etm_record_init(int *err)
ptr->itr.snapshot_finish = cs_etm_snapshot_finish;
ptr->itr.reference = cs_etm_reference;
ptr->itr.free = cs_etm_recording_free;
- ptr->itr.read_finish = cs_etm_read_finish;
+ ptr->itr.read_finish = auxtrace_record__read_finish;

*err = 0;
return &ptr->itr;
diff --git a/tools/perf/arch/arm64/util/arm-spe.c b/tools/perf/arch/arm64/util/arm-spe.c
index 1d993c27242b..8d6821d9c3f6 100644
--- a/tools/perf/arch/arm64/util/arm-spe.c
+++ b/tools/perf/arch/arm64/util/arm-spe.c
@@ -158,23 +158,6 @@ static void arm_spe_recording_free(struct auxtrace_record *itr)
free(sper);
}

-static int arm_spe_read_finish(struct auxtrace_record *itr, int idx)
-{
- struct arm_spe_recording *sper =
- container_of(itr, struct arm_spe_recording, itr);
- struct evsel *evsel;
-
- evlist__for_each_entry(sper->evlist, evsel) {
- if (evsel->core.attr.type == sper->arm_spe_pmu->type) {
- if (evsel->disabled)
- return 0;
- return perf_evlist__enable_event_idx(sper->evlist,
- evsel, idx);
- }
- }
- return -EINVAL;
-}
-
struct auxtrace_record *arm_spe_recording_init(int *err,
struct perf_pmu *arm_spe_pmu)
{
@@ -192,12 +175,13 @@ struct auxtrace_record *arm_spe_recording_init(int *err,
}

sper->arm_spe_pmu = arm_spe_pmu;
+ sper->itr.pmu = arm_spe_pmu;
sper->itr.recording_options = arm_spe_recording_options;
sper->itr.info_priv_size = arm_spe_info_priv_size;
sper->itr.info_fill = arm_spe_info_fill;
sper->itr.free = arm_spe_recording_free;
sper->itr.reference = arm_spe_reference;
- sper->itr.read_finish = arm_spe_read_finish;
+ sper->itr.read_finish = auxtrace_record__read_finish;
sper->itr.alignment = 0;

*err = 0;
diff --git a/tools/perf/arch/x86/util/intel-bts.c b/tools/perf/arch/x86/util/intel-bts.c
index 39e363151ad7..26cee1052179 100644
--- a/tools/perf/arch/x86/util/intel-bts.c
+++ b/tools/perf/arch/x86/util/intel-bts.c
@@ -413,23 +413,6 @@ static int intel_bts_find_snapshot(struct auxtrace_record *itr, int idx,
return err;
}

-static int intel_bts_read_finish(struct auxtrace_record *itr, int idx)
-{
- struct intel_bts_recording *btsr =
- container_of(itr, struct intel_bts_recording, itr);
- struct evsel *evsel;
-
- evlist__for_each_entry(btsr->evlist, evsel) {
- if (evsel->core.attr.type == btsr->intel_bts_pmu->type) {
- if (evsel->disabled)
- return 0;
- return perf_evlist__enable_event_idx(btsr->evlist,
- evsel, idx);
- }
- }
- return -EINVAL;
-}
-
struct auxtrace_record *intel_bts_recording_init(int *err)
{
struct perf_pmu *intel_bts_pmu = perf_pmu__find(INTEL_BTS_PMU_NAME);
@@ -450,6 +433,7 @@ struct auxtrace_record *intel_bts_recording_init(int *err)
}

btsr->intel_bts_pmu = intel_bts_pmu;
+ btsr->itr.pmu = intel_bts_pmu;
btsr->itr.recording_options = intel_bts_recording_options;
btsr->itr.info_priv_size = intel_bts_info_priv_size;
btsr->itr.info_fill = intel_bts_info_fill;
@@ -459,7 +443,7 @@ struct auxtrace_record *intel_bts_recording_init(int *err)
btsr->itr.find_snapshot = intel_bts_find_snapshot;
btsr->itr.parse_snapshot_options = intel_bts_parse_snapshot_options;
btsr->itr.reference = intel_bts_reference;
- btsr->itr.read_finish = intel_bts_read_finish;
+ btsr->itr.read_finish = auxtrace_record__read_finish;
btsr->itr.alignment = sizeof(struct branch);
return &btsr->itr;
}
diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c
index be07d6886256..7eea4fd7ce58 100644
--- a/tools/perf/arch/x86/util/intel-pt.c
+++ b/tools/perf/arch/x86/util/intel-pt.c
@@ -1166,23 +1166,6 @@ static u64 intel_pt_reference(struct auxtrace_record *itr __maybe_unused)
return rdtsc();
}

-static int intel_pt_read_finish(struct auxtrace_record *itr, int idx)
-{
- struct intel_pt_recording *ptr =
- container_of(itr, struct intel_pt_recording, itr);
- struct evsel *evsel;
-
- evlist__for_each_entry(ptr->evlist, evsel) {
- if (evsel->core.attr.type == ptr->intel_pt_pmu->type) {
- if (evsel->disabled)
- return 0;
- return perf_evlist__enable_event_idx(ptr->evlist, evsel,
- idx);
- }
- }
- return -EINVAL;
-}
-
struct auxtrace_record *intel_pt_recording_init(int *err)
{
struct perf_pmu *intel_pt_pmu = perf_pmu__find(INTEL_PT_PMU_NAME);
@@ -1203,6 +1186,7 @@ struct auxtrace_record *intel_pt_recording_init(int *err)
}

ptr->intel_pt_pmu = intel_pt_pmu;
+ ptr->itr.pmu = intel_pt_pmu;
ptr->itr.recording_options = intel_pt_recording_options;
ptr->itr.info_priv_size = intel_pt_info_priv_size;
ptr->itr.info_fill = intel_pt_info_fill;
@@ -1212,7 +1196,7 @@ struct auxtrace_record *intel_pt_recording_init(int *err)
ptr->itr.find_snapshot = intel_pt_find_snapshot;
ptr->itr.parse_snapshot_options = intel_pt_parse_snapshot_options;
ptr->itr.reference = intel_pt_reference;
- ptr->itr.read_finish = intel_pt_read_finish;
+ ptr->itr.read_finish = auxtrace_record__read_finish;
/*
* Decoding starts at a PSB packet. Minimum PSB period is 2K so 4K
* should give at least 1 PSB per sample.
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index eb087e7df6f4..3571ce72ca28 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -629,8 +629,10 @@ int auxtrace_record__options(struct auxtrace_record *itr,
struct evlist *evlist,
struct record_opts *opts)
{
- if (itr)
+ if (itr) {
+ itr->evlist = evlist;
return itr->recording_options(itr, evlist, opts);
+ }
return 0;
}

@@ -664,6 +666,24 @@ int auxtrace_parse_snapshot_options(struct auxtrace_record *itr,
return -EINVAL;
}

+int auxtrace_record__read_finish(struct auxtrace_record *itr, int idx)
+{
+ struct evsel *evsel;
+
+ if (!itr->evlist || !itr->pmu)
+ return -EINVAL;
+
+ evlist__for_each_entry(itr->evlist, evsel) {
+ if (evsel->core.attr.type == itr->pmu->type) {
+ if (evsel->disabled)
+ return 0;
+ return perf_evlist__enable_event_idx(itr->evlist, evsel,
+ idx);
+ }
+ }
+ return -EINVAL;
+}
+
/*
* Event record size is 16-bit which results in a maximum size of about 64KiB.
* Allow about 4KiB for the rest of the sample record, to give a maximum
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index 749d72cd9c7b..e58ef160b599 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -29,6 +29,7 @@ struct record_opts;
struct perf_record_auxtrace_error;
struct perf_record_auxtrace_info;
struct events_stats;
+struct perf_pmu;

enum auxtrace_error_type {
PERF_AUXTRACE_ERROR_ITRACE = 1,
@@ -322,6 +323,8 @@ struct auxtrace_mmap_params {
* @read_finish: called after reading from an auxtrace mmap
* @alignment: alignment (if any) for AUX area data
* @default_aux_sample_size: default sample size for --aux sample option
+ * @pmu: associated pmu
+ * @evlist: selected events list
*/
struct auxtrace_record {
int (*recording_options)(struct auxtrace_record *itr,
@@ -346,6 +349,8 @@ struct auxtrace_record {
int (*read_finish)(struct auxtrace_record *itr, int idx);
unsigned int alignment;
unsigned int default_aux_sample_size;
+ struct perf_pmu *pmu;
+ struct evlist *evlist;
};

/**
@@ -537,6 +542,7 @@ int auxtrace_record__find_snapshot(struct auxtrace_record *itr, int idx,
struct auxtrace_mmap *mm,
unsigned char *data, u64 *head, u64 *old);
u64 auxtrace_record__reference(struct auxtrace_record *itr);
+int auxtrace_record__read_finish(struct auxtrace_record *itr, int idx);

int auxtrace_index__auxtrace_event(struct list_head *head, union perf_event *event,
off_t file_offset);
--
2.21.1

Next message: Arnaldo Carvalho de Melo: "[PATCH 8/8] perf arch powerpc: Sync powerpc syscall.tbl with the kernel sources"
Previous message: John Hubbard: "Re: [PATCH] mm/page_alloc: increase default min_free_kbytes bound"
In reply to: Arnaldo Carvalho de Melo: "[PATCH 5/8] perf cs-etm: Fix endless record after being terminated"
Next in thread: Arnaldo Carvalho de Melo: "[PATCH 8/8] perf arch powerpc: Sync powerpc syscall.tbl with the kernel sources"
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