Re: [PATCH 2/7] libperf: Move idx to perf_evsel::idx

[Jiri Olsa <jolsa@redhat.com>]

On Wed, Jul 07, 2021 at 11:45:20AM -0300, Arnaldo Carvalho de Melo wrote:
> Em Tue, Jul 06, 2021 at 05:16:59PM +0200, Jiri Olsa escreveu:
> > Moving evsel::idx to perf_evsel::idx, so we can move
> > the group interface to libperf.
> 
> So perf_evsel__init() isn't static but also isn't in
> tools/lib/perf/libperf.map so we're free to change its function
> signature, right?

right.. also I think we stated somewhere we can change also
libperf.map functions ;-) it's still 0.0.1

jirka

> 
> - Arnaldo
>  
> > Signed-off-by: Jiri Olsa <jolsa@kernel.org>
> > ---
> >  tools/lib/perf/evlist.c                 |  1 +
> >  tools/lib/perf/evsel.c                  |  6 ++++--
> >  tools/lib/perf/include/internal/evsel.h |  4 +++-
> >  tools/perf/arch/x86/util/iostat.c       |  4 ++--
> >  tools/perf/builtin-diff.c               |  4 ++--
> >  tools/perf/builtin-report.c             |  4 ++--
> >  tools/perf/builtin-top.c                |  8 ++++----
> >  tools/perf/tests/evsel-roundtrip-name.c |  6 +++---
> >  tools/perf/tests/mmap-basic.c           |  8 ++++----
> >  tools/perf/ui/browsers/annotate.c       |  2 +-
> >  tools/perf/util/annotate.c              |  8 ++++----
> >  tools/perf/util/evlist.c                | 10 ++++------
> >  tools/perf/util/evsel.c                 |  3 +--
> >  tools/perf/util/evsel.h                 |  3 +--
> >  tools/perf/util/header.c                | 10 +++++-----
> >  tools/perf/util/metricgroup.c           | 14 +++++++-------
> >  tools/perf/util/parse-events.c          |  2 +-
> >  tools/perf/util/python.c                |  2 +-
> >  tools/perf/util/stream.c                |  2 +-
> >  19 files changed, 51 insertions(+), 50 deletions(-)
> > 
> > diff --git a/tools/lib/perf/evlist.c b/tools/lib/perf/evlist.c
> > index a0aaf385cbb5..68b90bbf0ffb 100644
> > --- a/tools/lib/perf/evlist.c
> > +++ b/tools/lib/perf/evlist.c
> > @@ -66,6 +66,7 @@ static void perf_evlist__propagate_maps(struct perf_evlist *evlist)
> >  void perf_evlist__add(struct perf_evlist *evlist,
> >  		      struct perf_evsel *evsel)
> >  {
> > +	evsel->idx = evlist->nr_entries;
> >  	list_add_tail(&evsel->node, &evlist->entries);
> >  	evlist->nr_entries += 1;
> >  	__perf_evlist__propagate_maps(evlist, evsel);
> > diff --git a/tools/lib/perf/evsel.c b/tools/lib/perf/evsel.c
> > index bd8c2f19ef74..dccdc3456b23 100644
> > --- a/tools/lib/perf/evsel.c
> > +++ b/tools/lib/perf/evsel.c
> > @@ -18,10 +18,12 @@
> >  #include <sys/ioctl.h>
> >  #include <sys/mman.h>
> >  
> > -void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr)
> > +void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr,
> > +		      int idx)
> >  {
> >  	INIT_LIST_HEAD(&evsel->node);
> >  	evsel->attr = *attr;
> > +	evsel->idx  = idx;
> >  }
> >  
> >  struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
> > @@ -29,7 +31,7 @@ struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
> >  	struct perf_evsel *evsel = zalloc(sizeof(*evsel));
> >  
> >  	if (evsel != NULL)
> > -		perf_evsel__init(evsel, attr);
> > +		perf_evsel__init(evsel, attr, 0);
> >  
> >  	return evsel;
> >  }
> > diff --git a/tools/lib/perf/include/internal/evsel.h b/tools/lib/perf/include/internal/evsel.h
> > index 1c067d088bc6..86f674e36f62 100644
> > --- a/tools/lib/perf/include/internal/evsel.h
> > +++ b/tools/lib/perf/include/internal/evsel.h
> > @@ -49,9 +49,11 @@ struct perf_evsel {
> >  	/* parse modifier helper */
> >  	int			 nr_members;
> >  	bool			 system_wide;
> > +	int			 idx;
> >  };
> >  
> > -void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr);
> > +void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr,
> > +		      int idx);
> >  int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
> >  void perf_evsel__close_fd(struct perf_evsel *evsel);
> >  void perf_evsel__free_fd(struct perf_evsel *evsel);
> > diff --git a/tools/perf/arch/x86/util/iostat.c b/tools/perf/arch/x86/util/iostat.c
> > index d63acb782b63..eeafe97b8105 100644
> > --- a/tools/perf/arch/x86/util/iostat.c
> > +++ b/tools/perf/arch/x86/util/iostat.c
> > @@ -322,7 +322,7 @@ static int iostat_event_group(struct evlist *evl,
> >  	}
> >  
> >  	evlist__for_each_entry(evl, evsel) {
> > -		evsel->priv = list->rps[evsel->idx / metrics_count];
> > +		evsel->priv = list->rps[evsel->core.idx / metrics_count];
> >  	}
> >  	list->nr_entries = 0;
> >  err:
> > @@ -428,7 +428,7 @@ void iostat_print_metric(struct perf_stat_config *config, struct evsel *evsel,
> >  {
> >  	double iostat_value = 0;
> >  	u64 prev_count_val = 0;
> > -	const char *iostat_metric = iostat_metric_by_idx(evsel->idx);
> > +	const char *iostat_metric = iostat_metric_by_idx(evsel->core.idx);
> >  	u8 die = ((struct iio_root_port *)evsel->priv)->die;
> >  	struct perf_counts_values *count = perf_counts(evsel->counts, die, 0);
> >  
> > diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
> > index f52b3a799e76..80450c0e8f36 100644
> > --- a/tools/perf/builtin-diff.c
> > +++ b/tools/perf/builtin-diff.c
> > @@ -1031,12 +1031,12 @@ static int process_base_stream(struct data__file *data_base,
> >  			continue;
> >  
> >  		es_base = evsel_streams__entry(data_base->evlist_streams,
> > -					       evsel_base->idx);
> > +					       evsel_base->core.idx);
> >  		if (!es_base)
> >  			return -1;
> >  
> >  		es_pair = evsel_streams__entry(data_pair->evlist_streams,
> > -					       evsel_pair->idx);
> > +					       evsel_pair->core.idx);
> >  		if (!es_pair)
> >  			return -1;
> >  
> > diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
> > index bc5c393021dc..4014de4da33b 100644
> > --- a/tools/perf/builtin-report.c
> > +++ b/tools/perf/builtin-report.c
> > @@ -332,7 +332,7 @@ static int process_read_event(struct perf_tool *tool,
> >  		const char *name = evsel__name(evsel);
> >  		int err = perf_read_values_add_value(&rep->show_threads_values,
> >  					   event->read.pid, event->read.tid,
> > -					   evsel->idx,
> > +					   evsel->core.idx,
> >  					   name,
> >  					   event->read.value);
> >  
> > @@ -666,7 +666,7 @@ static int report__collapse_hists(struct report *rep)
> >  	evlist__for_each_entry(rep->session->evlist, pos) {
> >  		struct hists *hists = evsel__hists(pos);
> >  
> > -		if (pos->idx == 0)
> > +		if (pos->core.idx == 0)
> >  			hists->symbol_filter_str = rep->symbol_filter_str;
> >  
> >  		hists->socket_filter = rep->socket_filter;
> > diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
> > index 2d570bfe7a56..76343a418e67 100644
> > --- a/tools/perf/builtin-top.c
> > +++ b/tools/perf/builtin-top.c
> > @@ -264,9 +264,9 @@ static void perf_top__show_details(struct perf_top *top)
> >  
> >  	if (top->evlist->enabled) {
> >  		if (top->zero)
> > -			symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx);
> > +			symbol__annotate_zero_histogram(symbol, top->sym_evsel->core.idx);
> >  		else
> > -			symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx);
> > +			symbol__annotate_decay_histogram(symbol, top->sym_evsel->core.idx);
> >  	}
> >  	if (more != 0)
> >  		printf("%d lines not displayed, maybe increase display entries [e]\n", more);
> > @@ -530,7 +530,7 @@ static bool perf_top__handle_keypress(struct perf_top *top, int c)
> >  				fprintf(stderr, "\nAvailable events:");
> >  
> >  				evlist__for_each_entry(top->evlist, top->sym_evsel)
> > -					fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, evsel__name(top->sym_evsel));
> > +					fprintf(stderr, "\n\t%d %s", top->sym_evsel->core.idx, evsel__name(top->sym_evsel));
> >  
> >  				prompt_integer(&counter, "Enter details event counter");
> >  
> > @@ -541,7 +541,7 @@ static bool perf_top__handle_keypress(struct perf_top *top, int c)
> >  					break;
> >  				}
> >  				evlist__for_each_entry(top->evlist, top->sym_evsel)
> > -					if (top->sym_evsel->idx == counter)
> > +					if (top->sym_evsel->core.idx == counter)
> >  						break;
> >  			} else
> >  				top->sym_evsel = evlist__first(top->evlist);
> > diff --git a/tools/perf/tests/evsel-roundtrip-name.c b/tools/perf/tests/evsel-roundtrip-name.c
> > index b74cf80d1f10..5ebf56331904 100644
> > --- a/tools/perf/tests/evsel-roundtrip-name.c
> > +++ b/tools/perf/tests/evsel-roundtrip-name.c
> > @@ -44,7 +44,7 @@ static int perf_evsel__roundtrip_cache_name_test(void)
> >  
> >  			for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
> >  				__evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name));
> > -				if (evsel->idx != idx)
> > +				if (evsel->core.idx != idx)
> >  					continue;
> >  
> >  				++idx;
> > @@ -84,9 +84,9 @@ static int __perf_evsel__name_array_test(const char *names[], int nr_names,
> >  
> >  	err = 0;
> >  	evlist__for_each_entry(evlist, evsel) {
> > -		if (strcmp(evsel__name(evsel), names[evsel->idx / distance])) {
> > +		if (strcmp(evsel__name(evsel), names[evsel->core.idx / distance])) {
> >  			--err;
> > -			pr_debug("%s != %s\n", evsel__name(evsel), names[evsel->idx / distance]);
> > +			pr_debug("%s != %s\n", evsel__name(evsel), names[evsel->core.idx / distance]);
> >  		}
> >  	}
> >  
> > diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c
> > index 73ae8f7aa066..d38757db2dc2 100644
> > --- a/tools/perf/tests/mmap-basic.c
> > +++ b/tools/perf/tests/mmap-basic.c
> > @@ -139,7 +139,7 @@ int test__basic_mmap(struct test *test __maybe_unused, int subtest __maybe_unuse
> >  				 " doesn't map to an evsel\n", sample.id);
> >  			goto out_delete_evlist;
> >  		}
> > -		nr_events[evsel->idx]++;
> > +		nr_events[evsel->core.idx]++;
> >  		perf_mmap__consume(&md->core);
> >  	}
> >  	perf_mmap__read_done(&md->core);
> > @@ -147,10 +147,10 @@ int test__basic_mmap(struct test *test __maybe_unused, int subtest __maybe_unuse
> >  out_init:
> >  	err = 0;
> >  	evlist__for_each_entry(evlist, evsel) {
> > -		if (nr_events[evsel->idx] != expected_nr_events[evsel->idx]) {
> > +		if (nr_events[evsel->core.idx] != expected_nr_events[evsel->core.idx]) {
> >  			pr_debug("expected %d %s events, got %d\n",
> > -				 expected_nr_events[evsel->idx],
> > -				 evsel__name(evsel), nr_events[evsel->idx]);
> > +				 expected_nr_events[evsel->core.idx],
> > +				 evsel__name(evsel), nr_events[evsel->core.idx]);
> >  			err = -1;
> >  			goto out_delete_evlist;
> >  		}
> > diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
> > index f5509a958e38..cd2ef8f3b474 100644
> > --- a/tools/perf/ui/browsers/annotate.c
> > +++ b/tools/perf/ui/browsers/annotate.c
> > @@ -749,7 +749,7 @@ static int annotate_browser__run(struct annotate_browser *browser,
> >  				hbt->timer(hbt->arg);
> >  
> >  			if (delay_secs != 0) {
> > -				symbol__annotate_decay_histogram(sym, evsel->idx);
> > +				symbol__annotate_decay_histogram(sym, evsel->core.idx);
> >  				hists__scnprintf_title(hists, title, sizeof(title));
> >  				annotate_browser__show(&browser->b, title, help);
> >  			}
> > diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
> > index abe1499a9164..aa04a3655236 100644
> > --- a/tools/perf/util/annotate.c
> > +++ b/tools/perf/util/annotate.c
> > @@ -961,7 +961,7 @@ static int symbol__inc_addr_samples(struct map_symbol *ms,
> >  	if (sym == NULL)
> >  		return 0;
> >  	src = symbol__hists(sym, evsel->evlist->core.nr_entries);
> > -	return src ? __symbol__inc_addr_samples(ms, src, evsel->idx, addr, sample) : 0;
> > +	return src ? __symbol__inc_addr_samples(ms, src, evsel->core.idx, addr, sample) : 0;
> >  }
> >  
> >  static int symbol__account_cycles(u64 addr, u64 start,
> > @@ -2159,7 +2159,7 @@ static void annotation__calc_percent(struct annotation *notes,
> >  
> >  			BUG_ON(i >= al->data_nr);
> >  
> > -			sym_hist = annotation__histogram(notes, evsel->idx);
> > +			sym_hist = annotation__histogram(notes, evsel->core.idx);
> >  			data = &al->data[i++];
> >  
> >  			calc_percent(sym_hist, hists, data, al->offset, end);
> > @@ -2340,7 +2340,7 @@ static void print_summary(struct rb_root *root, const char *filename)
> >  static void symbol__annotate_hits(struct symbol *sym, struct evsel *evsel)
> >  {
> >  	struct annotation *notes = symbol__annotation(sym);
> > -	struct sym_hist *h = annotation__histogram(notes, evsel->idx);
> > +	struct sym_hist *h = annotation__histogram(notes, evsel->core.idx);
> >  	u64 len = symbol__size(sym), offset;
> >  
> >  	for (offset = 0; offset < len; ++offset)
> > @@ -2373,7 +2373,7 @@ int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel,
> >  	const char *d_filename;
> >  	const char *evsel_name = evsel__name(evsel);
> >  	struct annotation *notes = symbol__annotation(sym);
> > -	struct sym_hist *h = annotation__histogram(notes, evsel->idx);
> > +	struct sym_hist *h = annotation__histogram(notes, evsel->core.idx);
> >  	struct annotation_line *pos, *queue = NULL;
> >  	u64 start = map__rip_2objdump(map, sym->start);
> >  	int printed = 2, queue_len = 0, addr_fmt_width;
> > diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
> > index 6ba9664089bd..6563ce3b9541 100644
> > --- a/tools/perf/util/evlist.c
> > +++ b/tools/perf/util/evlist.c
> > @@ -165,11 +165,9 @@ void evlist__delete(struct evlist *evlist)
> >  
> >  void evlist__add(struct evlist *evlist, struct evsel *entry)
> >  {
> > -	entry->evlist = evlist;
> > -	entry->idx = evlist->core.nr_entries;
> > -	entry->tracking = !entry->idx;
> > -
> >  	perf_evlist__add(&evlist->core, &entry->core);
> > +	entry->evlist = evlist;
> > +	entry->tracking = !entry->core.idx;
> >  
> >  	if (evlist->core.nr_entries == 1)
> >  		evlist__set_id_pos(evlist);
> > @@ -232,7 +230,7 @@ void __evlist__set_leader(struct list_head *list)
> >  	leader = list_entry(list->next, struct evsel, core.node);
> >  	evsel = list_entry(list->prev, struct evsel, core.node);
> >  
> > -	leader->core.nr_members = evsel->idx - leader->idx + 1;
> > +	leader->core.nr_members = evsel->core.idx - leader->core.idx + 1;
> >  
> >  	__evlist__for_each_entry(list, evsel) {
> >  		evsel->leader = leader;
> > @@ -2137,7 +2135,7 @@ struct evsel *evlist__find_evsel(struct evlist *evlist, int idx)
> >  	struct evsel *evsel;
> >  
> >  	evlist__for_each_entry(evlist, evsel) {
> > -		if (evsel->idx == idx)
> > +		if (evsel->core.idx == idx)
> >  			return evsel;
> >  	}
> >  	return NULL;
> > diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
> > index b1c930eca40f..cce16814dc2c 100644
> > --- a/tools/perf/util/evsel.c
> > +++ b/tools/perf/util/evsel.c
> > @@ -239,8 +239,7 @@ bool evsel__is_function_event(struct evsel *evsel)
> >  void evsel__init(struct evsel *evsel,
> >  		 struct perf_event_attr *attr, int idx)
> >  {
> > -	perf_evsel__init(&evsel->core, attr);
> > -	evsel->idx	   = idx;
> > +	perf_evsel__init(&evsel->core, attr, idx);
> >  	evsel->tracking	   = !idx;
> >  	evsel->leader	   = evsel;
> >  	evsel->unit	   = "";
> > diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
> > index bdad52a06438..09c290bce3cc 100644
> > --- a/tools/perf/util/evsel.h
> > +++ b/tools/perf/util/evsel.h
> > @@ -49,7 +49,6 @@ struct evsel {
> >  	struct perf_evsel	core;
> >  	struct evlist		*evlist;
> >  	off_t			id_offset;
> > -	int			idx;
> >  	int			id_pos;
> >  	int			is_pos;
> >  	unsigned int		sample_size;
> > @@ -406,7 +405,7 @@ int evsel__open_strerror(struct evsel *evsel, struct target *target,
> >  
> >  static inline int evsel__group_idx(struct evsel *evsel)
> >  {
> > -	return evsel->idx - evsel->leader->idx;
> > +	return evsel->core.idx - evsel->leader->core.idx;
> >  }
> >  
> >  /* Iterates group WITHOUT the leader. */
> > diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
> > index 0158d2945bab..9c8efb1898a0 100644
> > --- a/tools/perf/util/header.c
> > +++ b/tools/perf/util/header.c
> > @@ -789,7 +789,7 @@ static int write_group_desc(struct feat_fd *ff,
> >  	evlist__for_each_entry(evlist, evsel) {
> >  		if (evsel__is_group_leader(evsel) && evsel->core.nr_members > 1) {
> >  			const char *name = evsel->group_name ?: "{anon_group}";
> > -			u32 leader_idx = evsel->idx;
> > +			u32 leader_idx = evsel->core.idx;
> >  			u32 nr_members = evsel->core.nr_members;
> >  
> >  			ret = do_write_string(ff, name);
> > @@ -1844,7 +1844,7 @@ static struct evsel *read_event_desc(struct feat_fd *ff)
> >  		msz = sz;
> >  
> >  	for (i = 0, evsel = events; i < nre; evsel++, i++) {
> > -		evsel->idx = i;
> > +		evsel->core.idx = i;
> >  
> >  		/*
> >  		 * must read entire on-file attr struct to
> > @@ -2379,7 +2379,7 @@ static struct evsel *evlist__find_by_index(struct evlist *evlist, int idx)
> >  	struct evsel *evsel;
> >  
> >  	evlist__for_each_entry(evlist, evsel) {
> > -		if (evsel->idx == idx)
> > +		if (evsel->core.idx == idx)
> >  			return evsel;
> >  	}
> >  
> > @@ -2393,7 +2393,7 @@ static void evlist__set_event_name(struct evlist *evlist, struct evsel *event)
> >  	if (!event->name)
> >  		return;
> >  
> > -	evsel = evlist__find_by_index(evlist, event->idx);
> > +	evsel = evlist__find_by_index(evlist, event->core.idx);
> >  	if (!evsel)
> >  		return;
> >  
> > @@ -2739,7 +2739,7 @@ static int process_group_desc(struct feat_fd *ff, void *data __maybe_unused)
> >  
> >  	i = nr = 0;
> >  	evlist__for_each_entry(session->evlist, evsel) {
> > -		if (evsel->idx == (int) desc[i].leader_idx) {
> > +		if (evsel->core.idx == (int) desc[i].leader_idx) {
> >  			evsel->leader = evsel;
> >  			/* {anon_group} is a dummy name */
> >  			if (strcmp(desc[i].name, "{anon_group}")) {
> > diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
> > index d3cf2dee36c8..d956d9cf73f7 100644
> > --- a/tools/perf/util/metricgroup.c
> > +++ b/tools/perf/util/metricgroup.c
> > @@ -219,7 +219,7 @@ static struct evsel *find_evsel_group(struct evlist *perf_evlist,
> >  		if (has_constraint && ev->weak_group)
> >  			continue;
> >  		/* Ignore event if already used and merging is disabled. */
> > -		if (metric_no_merge && test_bit(ev->idx, evlist_used))
> > +		if (metric_no_merge && test_bit(ev->core.idx, evlist_used))
> >  			continue;
> >  		if (!has_constraint && ev->leader != current_leader) {
> >  			/*
> > @@ -269,7 +269,7 @@ static struct evsel *find_evsel_group(struct evlist *perf_evlist,
> >  	for (i = 0; i < idnum; i++) {
> >  		ev = metric_events[i];
> >  		/* Don't free the used events. */
> > -		set_bit(ev->idx, evlist_used);
> > +		set_bit(ev->core.idx, evlist_used);
> >  		/*
> >  		 * The metric leader points to the identically named event in
> >  		 * metric_events.
> > @@ -291,7 +291,7 @@ static struct evsel *find_evsel_group(struct evlist *perf_evlist,
> >  			    evsel_same_pmu_or_none(ev->leader, metric_events[i]->leader))
> >  				break;
> >  			if (!strcmp(metric_events[i]->name, ev->name)) {
> > -				set_bit(ev->idx, evlist_used);
> > +				set_bit(ev->core.idx, evlist_used);
> >  				ev->metric_leader = metric_events[i];
> >  			}
> >  		}
> > @@ -391,7 +391,7 @@ static int metricgroup__setup_events(struct list_head *groups,
> >  	}
> >  
> >  	evlist__for_each_entry_safe(perf_evlist, tmp, evsel) {
> > -		if (!test_bit(evsel->idx, evlist_used)) {
> > +		if (!test_bit(evsel->core.idx, evlist_used)) {
> >  			evlist__remove(perf_evlist, evsel);
> >  			evsel__delete(evsel);
> >  		}
> > @@ -1312,7 +1312,7 @@ int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
> >  		nd = rblist__entry(old_metric_events, i);
> >  		old_me = container_of(nd, struct metric_event, nd);
> >  
> > -		evsel = evlist__find_evsel(evlist, old_me->evsel->idx);
> > +		evsel = evlist__find_evsel(evlist, old_me->evsel->core.idx);
> >  		if (!evsel)
> >  			return -EINVAL;
> >  		new_me = metricgroup__lookup(new_metric_events, evsel, true);
> > @@ -1320,7 +1320,7 @@ int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
> >  			return -ENOMEM;
> >  
> >  		pr_debug("copying metric event for cgroup '%s': %s (idx=%d)\n",
> > -			 cgrp ? cgrp->name : "root", evsel->name, evsel->idx);
> > +			 cgrp ? cgrp->name : "root", evsel->name, evsel->core.idx);
> >  
> >  		list_for_each_entry(old_expr, &old_me->head, nd) {
> >  			new_expr = malloc(sizeof(*new_expr));
> > @@ -1363,7 +1363,7 @@ int metricgroup__copy_metric_events(struct evlist *evlist, struct cgroup *cgrp,
> >  			/* copy evsel in the same position */
> >  			for (idx = 0; idx < nr; idx++) {
> >  				evsel = old_expr->metric_events[idx];
> > -				evsel = evlist__find_evsel(evlist, evsel->idx);
> > +				evsel = evlist__find_evsel(evlist, evsel->core.idx);
> >  				if (evsel == NULL) {
> >  					free(new_expr->metric_events);
> >  					free(new_expr->metric_refs);
> > diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
> > index 84108c17f48d..e936c7c02d14 100644
> > --- a/tools/perf/util/parse-events.c
> > +++ b/tools/perf/util/parse-events.c
> > @@ -1740,7 +1740,7 @@ parse_events__set_leader_for_uncore_aliase(char *name, struct list_head *list,
> >  
> >  	leader = list_first_entry(list, struct evsel, core.node);
> >  	evsel = list_last_entry(list, struct evsel, core.node);
> > -	total_members = evsel->idx - leader->idx + 1;
> > +	total_members = evsel->core.idx - leader->core.idx + 1;
> >  
> >  	leaders = calloc(total_members, sizeof(uintptr_t));
> >  	if (WARN_ON(!leaders))
> > diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
> > index 412f8e79e409..8feef3a05af7 100644
> > --- a/tools/perf/util/python.c
> > +++ b/tools/perf/util/python.c
> > @@ -1032,7 +1032,7 @@ static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
> >  
> >  	Py_INCREF(pevsel);
> >  	evsel = &((struct pyrf_evsel *)pevsel)->evsel;
> > -	evsel->idx = evlist->core.nr_entries;
> > +	evsel->core.idx = evlist->core.nr_entries;
> >  	evlist__add(evlist, evsel);
> >  
> >  	return Py_BuildValue("i", evlist->core.nr_entries);
> > diff --git a/tools/perf/util/stream.c b/tools/perf/util/stream.c
> > index 4bd5e5a00aa5..545e44981a27 100644
> > --- a/tools/perf/util/stream.c
> > +++ b/tools/perf/util/stream.c
> > @@ -139,7 +139,7 @@ static int evlist__init_callchain_streams(struct evlist *evlist,
> >  
> >  		hists__output_resort(hists, NULL);
> >  		init_hot_callchain(hists, &es[i]);
> > -		es[i].evsel_idx = pos->idx;
> > +		es[i].evsel_idx = pos->core.idx;
> >  		i++;
> >  	}
> >  
> > -- 
> > 2.31.1
> > 
> 
> -- 
> 
> - Arnaldo
>