libperf evlist: Add evsel as a parameter to ->idx()

Add evsel as a parameter to ->idx() in preparation for correctly
determining whether an auxtrace mmap is needed.

Signed-off-by: Adrian Hunter <[e-mail]>
Acked-by: Ian Rogers <[e-mail]>
Cc: Alexey Bayduraev <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Leo Yan <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Link: http://lore.kernel.org/lkml/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/lib/perf/evlist.c

···
 			refcount_set(&map->refcnt, 2);
 
 			if (ops->idx)
-				ops->idx(evlist, mp, idx);
+				ops->idx(evlist, evsel, mp, idx);
 
 			if (ops->mmap(map, mp, *output, evlist_cpu) < 0)
 				return -1;

tools/lib/perf/include/internal/evlist.h

···
 };
 
 typedef void
-(*perf_evlist_mmap__cb_idx_t)(struct perf_evlist*, struct perf_mmap_param*, int);
+(*perf_evlist_mmap__cb_idx_t)(struct perf_evlist*, struct perf_evsel*,
+			      struct perf_mmap_param*, int);
 typedef struct perf_mmap*
 (*perf_evlist_mmap__cb_get_t)(struct perf_evlist*, bool, int);
 typedef int

tools/perf/util/evlist.c

···
 
 static void
 perf_evlist__mmap_cb_idx(struct perf_evlist *_evlist,
+			 struct perf_evsel *_evsel __maybe_unused,
 			 struct perf_mmap_param *_mp,
 			 int idx)
 {