From fba7c86601e2e42d7057db47bf6d45865a208b8c Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Tue, 6 Jul 2021 17:17:00 +0200 Subject: libperf: Move 'leader' from tools/perf to perf_evsel::leader Move evsel::leader to perf_evsel::leader, so we can move the group interface to libperf. Also add several evsel helpers to ease up the transition: struct evsel *evsel__leader(struct evsel *evsel); - get leader evsel bool evsel__has_leader(struct evsel *evsel, struct evsel *leader); - true if evsel has leader as leader bool evsel__is_leader(struct evsel *evsel); - true if evsel is itw own leader void evsel__set_leader(struct evsel *evsel, struct evsel *leader); - set leader for evsel Committer notes: Fix this when building with 'make BUILD_BPF_SKEL=1' tools/perf/util/bpf_counter.c - if (evsel->leader->core.nr_members > 1) { + if (evsel->core.leader->nr_members > 1) { Signed-off-by: Jiri Olsa Requested-by: Shunsuke Nakamura Cc: Alexander Shishkin Cc: Ian Rogers Cc: Mark Rutland Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20210706151704.73662-4-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/auxtrace.c | 12 ++++++------ tools/perf/util/bpf_counter.c | 2 +- tools/perf/util/cgroup.c | 2 +- tools/perf/util/evlist.c | 17 +++++++++-------- tools/perf/util/evsel.c | 29 ++++++++++++++++++++++++----- tools/perf/util/evsel.h | 13 ++++++++----- tools/perf/util/header.c | 4 ++-- tools/perf/util/metricgroup.c | 8 ++++---- tools/perf/util/parse-events.c | 2 +- tools/perf/util/record.c | 6 +++--- tools/perf/util/stat-shadow.c | 2 +- tools/perf/util/stat.c | 2 +- 12 files changed, 61 insertions(+), 38 deletions(-) (limited to 'tools/perf/util') diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index 9350eeb3a3fc..cb19669d2a5b 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -73,8 +73,8 @@ static int evlist__regroup(struct evlist *evlist, struct evsel *leader, struct e grp = false; evlist__for_each_entry(evlist, evsel) { if (grp) { - if (!(evsel->leader == leader || - (evsel->leader == evsel && + if (!(evsel__leader(evsel) == leader || + (evsel__leader(evsel) == evsel && evsel->core.nr_members <= 1))) return -EINVAL; } else if (evsel == leader) { @@ -87,8 +87,8 @@ static int evlist__regroup(struct evlist *evlist, struct evsel *leader, struct e grp = false; evlist__for_each_entry(evlist, evsel) { if (grp) { - if (evsel->leader != leader) { - evsel->leader = leader; + if (!evsel__has_leader(evsel, leader)) { + evsel__set_leader(evsel, leader); if (leader->core.nr_members < 1) leader->core.nr_members = 1; leader->core.nr_members += 1; @@ -1231,11 +1231,11 @@ static void unleader_evsel(struct evlist *evlist, struct evsel *leader) /* Find new leader for the group */ evlist__for_each_entry(evlist, evsel) { - if (evsel->leader != leader || evsel == leader) + if (!evsel__has_leader(evsel, leader) || evsel == leader) continue; if (!new_leader) new_leader = evsel; - evsel->leader = new_leader; + evsel__set_leader(evsel, new_leader); } /* Update group information */ diff --git a/tools/perf/util/bpf_counter.c b/tools/perf/util/bpf_counter.c index 1d0b9742f727..8150e03367bb 100644 --- a/tools/perf/util/bpf_counter.c +++ b/tools/perf/util/bpf_counter.c @@ -353,7 +353,7 @@ static int bperf_check_target(struct evsel *evsel, enum bperf_filter_type *filter_type, __u32 *filter_entry_cnt) { - if (evsel->leader->core.nr_members > 1) { + if (evsel->core.leader->nr_members > 1) { pr_err("bpf managed perf events do not yet support groups.\n"); return -1; } diff --git a/tools/perf/util/cgroup.c b/tools/perf/util/cgroup.c index 851531102fd6..e99b41f9be45 100644 --- a/tools/perf/util/cgroup.c +++ b/tools/perf/util/cgroup.c @@ -459,7 +459,7 @@ int evlist__expand_cgroup(struct evlist *evlist, const char *str, if (evsel__is_group_leader(pos)) leader = evsel; - evsel->leader = leader; + evsel__set_leader(evsel, leader); evlist__add(tmp_list, evsel); } diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 6563ce3b9541..9cb663882273 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -192,7 +192,7 @@ void evlist__splice_list_tail(struct evlist *evlist, struct list_head *list) } __evlist__for_each_entry_safe(list, temp, evsel) { - if (evsel->leader == leader) { + if (evsel__has_leader(evsel, leader)) { list_del_init(&evsel->core.node); evlist__add(evlist, evsel); } @@ -233,7 +233,7 @@ void __evlist__set_leader(struct list_head *list) leader->core.nr_members = evsel->core.idx - leader->core.idx + 1; __evlist__for_each_entry(list, evsel) { - evsel->leader = leader; + evsel->core.leader = &leader->core; } } @@ -1624,7 +1624,7 @@ void evlist__to_front(struct evlist *evlist, struct evsel *move_evsel) return; evlist__for_each_entry_safe(evlist, n, evsel) { - if (evsel->leader == move_evsel->leader) + if (evsel__leader(evsel) == evsel__leader(move_evsel)) list_move_tail(&evsel->core.node, &move); } @@ -1761,7 +1761,8 @@ struct evsel *evlist__reset_weak_group(struct evlist *evsel_list, struct evsel * struct evsel *c2, *leader; bool is_open = true; - leader = evsel->leader; + leader = evsel__leader(evsel); + pr_debug("Weak group for %s/%d failed\n", leader->name, leader->core.nr_members); @@ -1772,10 +1773,10 @@ struct evsel *evlist__reset_weak_group(struct evlist *evsel_list, struct evsel * evlist__for_each_entry(evsel_list, c2) { if (c2 == evsel) is_open = false; - if (c2->leader == leader) { + if (evsel__has_leader(c2, leader)) { if (is_open && close) perf_evsel__close(&c2->core); - c2->leader = c2; + evsel__set_leader(c2, c2); c2->core.nr_members = 0; /* * Set this for all former members of the group @@ -2172,13 +2173,13 @@ void evlist__check_mem_load_aux(struct evlist *evlist) * any valid memory load information. */ evlist__for_each_entry(evlist, evsel) { - leader = evsel->leader; + leader = evsel__leader(evsel); if (leader == evsel) continue; if (leader->name && strstr(leader->name, "mem-loads-aux")) { for_each_group_evsel(pos, leader) { - pos->leader = pos; + evsel__set_leader(pos, pos); pos->core.nr_members = 0; } } diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index cce16814dc2c..f61e5dd53f5d 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -241,7 +241,6 @@ void evsel__init(struct evsel *evsel, { perf_evsel__init(&evsel->core, attr, idx); evsel->tracking = !idx; - evsel->leader = evsel; evsel->unit = ""; evsel->scale = 1.0; evsel->max_events = ULONG_MAX; @@ -409,7 +408,7 @@ struct evsel *evsel__clone(struct evsel *orig) evsel->cgrp = cgroup__get(orig->cgrp); evsel->tp_format = orig->tp_format; evsel->handler = orig->handler; - evsel->leader = orig->leader; + evsel->core.leader = orig->core.leader; evsel->max_events = orig->max_events; evsel->tool_event = orig->tool_event; @@ -1074,7 +1073,7 @@ void __weak arch_evsel__set_sample_weight(struct evsel *evsel) void evsel__config(struct evsel *evsel, struct record_opts *opts, struct callchain_param *callchain) { - struct evsel *leader = evsel->leader; + struct evsel *leader = evsel__leader(evsel); struct perf_event_attr *attr = &evsel->core.attr; int track = evsel->tracking; bool per_cpu = opts->target.default_per_cpu && !opts->target.per_thread; @@ -1592,7 +1591,7 @@ static int evsel__match_other_cpu(struct evsel *evsel, struct evsel *other, static int evsel__hybrid_group_cpu(struct evsel *evsel, int cpu) { - struct evsel *leader = evsel->leader; + struct evsel *leader = evsel__leader(evsel); if ((evsel__is_hybrid(evsel) && !evsel__is_hybrid(leader)) || (!evsel__is_hybrid(evsel) && evsel__is_hybrid(leader))) { @@ -1604,7 +1603,7 @@ static int evsel__hybrid_group_cpu(struct evsel *evsel, int cpu) static int get_group_fd(struct evsel *evsel, int cpu, int thread) { - struct evsel *leader = evsel->leader; + struct evsel *leader = evsel__leader(evsel); int fd; if (evsel__is_group_leader(evsel)) @@ -2850,3 +2849,23 @@ bool evsel__is_hybrid(struct evsel *evsel) { return evsel->pmu_name && perf_pmu__is_hybrid(evsel->pmu_name); } + +struct evsel *evsel__leader(struct evsel *evsel) +{ + return container_of(evsel->core.leader, struct evsel, core); +} + +bool evsel__has_leader(struct evsel *evsel, struct evsel *leader) +{ + return evsel->core.leader == &leader->core; +} + +bool evsel__is_leader(struct evsel *evsel) +{ + return evsel__has_leader(evsel, evsel); +} + +void evsel__set_leader(struct evsel *evsel, struct evsel *leader) +{ + evsel->core.leader = &leader->core; +} diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index 09c290bce3cc..80383096d51c 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -118,7 +118,6 @@ struct evsel { bool reset_group; bool errored; struct hashmap *per_pkg_mask; - struct evsel *leader; int err; int cpu_iter; struct { @@ -367,7 +366,7 @@ static inline struct evsel *evsel__prev(struct evsel *evsel) */ static inline bool evsel__is_group_leader(const struct evsel *evsel) { - return evsel->leader == evsel; + return evsel->core.leader == &evsel->core; } /** @@ -405,19 +404,19 @@ int evsel__open_strerror(struct evsel *evsel, struct target *target, static inline int evsel__group_idx(struct evsel *evsel) { - return evsel->core.idx - evsel->leader->core.idx; + return evsel->core.idx - evsel->core.leader->idx; } /* Iterates group WITHOUT the leader. */ #define for_each_group_member(_evsel, _leader) \ for ((_evsel) = list_entry((_leader)->core.node.next, struct evsel, core.node); \ - (_evsel) && (_evsel)->leader == (_leader); \ + (_evsel) && (_evsel)->core.leader == (&_leader->core); \ (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node)) /* Iterates group WITH the leader. */ #define for_each_group_evsel(_evsel, _leader) \ for ((_evsel) = _leader; \ - (_evsel) && (_evsel)->leader == (_leader); \ + (_evsel) && (_evsel)->core.leader == (&_leader->core); \ (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node)) static inline bool evsel__has_branch_callstack(const struct evsel *evsel) @@ -462,4 +461,8 @@ int evsel__store_ids(struct evsel *evsel, struct evlist *evlist); void evsel__zero_per_pkg(struct evsel *evsel); bool evsel__is_hybrid(struct evsel *evsel); +struct evsel *evsel__leader(struct evsel *evsel); +bool evsel__has_leader(struct evsel *evsel, struct evsel *leader); +bool evsel__is_leader(struct evsel *evsel); +void evsel__set_leader(struct evsel *evsel, struct evsel *leader); #endif /* __PERF_EVSEL_H */ diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 9c8efb1898a0..a1056540c13b 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2740,7 +2740,7 @@ 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->core.idx == (int) desc[i].leader_idx) { - evsel->leader = evsel; + evsel__set_leader(evsel, evsel); /* {anon_group} is a dummy name */ if (strcmp(desc[i].name, "{anon_group}")) { evsel->group_name = desc[i].name; @@ -2758,7 +2758,7 @@ static int process_group_desc(struct feat_fd *ff, void *data __maybe_unused) i++; } else if (nr) { /* This is a group member */ - evsel->leader = leader; + evsel__set_leader(evsel, leader); nr--; } diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index d956d9cf73f7..99d047c5ead0 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -221,7 +221,7 @@ static struct evsel *find_evsel_group(struct evlist *perf_evlist, /* Ignore event if already used and merging is disabled. */ if (metric_no_merge && test_bit(ev->core.idx, evlist_used)) continue; - if (!has_constraint && ev->leader != current_leader) { + if (!has_constraint && !evsel__has_leader(ev, current_leader)) { /* * Start of a new group, discard the whole match and * start again. @@ -229,7 +229,7 @@ static struct evsel *find_evsel_group(struct evlist *perf_evlist, matched_events = 0; memset(metric_events, 0, sizeof(struct evsel *) * idnum); - current_leader = ev->leader; + current_leader = evsel__leader(ev); } /* * Check for duplicate events with the same name. For example, @@ -287,8 +287,8 @@ static struct evsel *find_evsel_group(struct evlist *perf_evlist, * when then group is left. */ if (!has_constraint && - ev->leader != metric_events[i]->leader && - evsel_same_pmu_or_none(ev->leader, metric_events[i]->leader)) + ev->core.leader != metric_events[i]->core.leader && + evsel_same_pmu_or_none(evsel__leader(ev), evsel__leader(metric_events[i]))) break; if (!strcmp(metric_events[i]->name, ev->name)) { set_bit(ev->core.idx, evlist_used); diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index e936c7c02d14..6fb1830097cb 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -1800,7 +1800,7 @@ parse_events__set_leader_for_uncore_aliase(char *name, struct list_head *list, __evlist__for_each_entry(list, evsel) { if (i >= nr_pmu) i = 0; - evsel->leader = (struct evsel *) leaders[i++]; + evsel__set_leader(evsel, (struct evsel *) leaders[i++]); } /* The number of members and group name are same for each group */ diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c index 43e5b563dee8..bff669b615ee 100644 --- a/tools/perf/util/record.c +++ b/tools/perf/util/record.c @@ -25,12 +25,12 @@ */ static struct evsel *evsel__read_sampler(struct evsel *evsel, struct evlist *evlist) { - struct evsel *leader = evsel->leader; + struct evsel *leader = evsel__leader(evsel); if (evsel__is_aux_event(leader) || arch_topdown_sample_read(leader) || is_mem_loads_aux_event(leader)) { evlist__for_each_entry(evlist, evsel) { - if (evsel->leader == leader && evsel != evsel->leader) + if (evsel__leader(evsel) == leader && evsel != evsel__leader(evsel)) return evsel; } } @@ -53,7 +53,7 @@ static u64 evsel__config_term_mask(struct evsel *evsel) static void evsel__config_leader_sampling(struct evsel *evsel, struct evlist *evlist) { struct perf_event_attr *attr = &evsel->core.attr; - struct evsel *leader = evsel->leader; + struct evsel *leader = evsel__leader(evsel); struct evsel *read_sampler; u64 term_types, freq_mask; diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c index 39967a45f55b..34a7f5c1fff7 100644 --- a/tools/perf/util/stat-shadow.c +++ b/tools/perf/util/stat-shadow.c @@ -379,7 +379,7 @@ void perf_stat__collect_metric_expr(struct evlist *evsel_list) evlist__for_each_entry(evsel_list, counter) { bool invalid = false; - leader = counter->leader; + leader = evsel__leader(counter); if (!counter->metric_expr) continue; diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index d3ec2624e036..09ea334586f2 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c @@ -534,7 +534,7 @@ int create_perf_stat_counter(struct evsel *evsel, int cpu) { struct perf_event_attr *attr = &evsel->core.attr; - struct evsel *leader = evsel->leader; + struct evsel *leader = evsel__leader(evsel); attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | PERF_FORMAT_TOTAL_TIME_RUNNING; -- cgit v1.2.3-59-g8ed1b