diff options
| -rw-r--r-- | tools/perf/util/evsel.c | 104 | ||||
| -rw-r--r-- | tools/perf/util/evsel.h | 93 |
2 files changed, 158 insertions, 39 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 2ac19a2530a2..1cad6051d8b0 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -331,6 +331,110 @@ error_free: goto out; } +static int evsel__copy_config_terms(struct evsel *dst, struct evsel *src) +{ + struct evsel_config_term *pos, *tmp; + + list_for_each_entry(pos, &src->config_terms, list) { + tmp = malloc(sizeof(*tmp)); + if (tmp == NULL) + return -ENOMEM; + + *tmp = *pos; + if (tmp->free_str) { + tmp->val.str = strdup(pos->val.str); + if (tmp->val.str == NULL) { + free(tmp); + return -ENOMEM; + } + } + list_add_tail(&tmp->list, &dst->config_terms); + } + return 0; +} + +/** + * evsel__clone - create a new evsel copied from @orig + * @orig: original evsel + * + * The assumption is that @orig is not configured nor opened yet. + * So we only care about the attributes that can be set while it's parsed. + */ +struct evsel *evsel__clone(struct evsel *orig) +{ + struct evsel *evsel; + + BUG_ON(orig->core.fd); + BUG_ON(orig->counts); + BUG_ON(orig->priv); + BUG_ON(orig->per_pkg_mask); + + /* cannot handle BPF objects for now */ + if (orig->bpf_obj) + return NULL; + + evsel = evsel__new(&orig->core.attr); + if (evsel == NULL) + return NULL; + + evsel->core.cpus = perf_cpu_map__get(orig->core.cpus); + evsel->core.own_cpus = perf_cpu_map__get(orig->core.own_cpus); + evsel->core.threads = perf_thread_map__get(orig->core.threads); + evsel->core.nr_members = orig->core.nr_members; + evsel->core.system_wide = orig->core.system_wide; + + if (orig->name) { + evsel->name = strdup(orig->name); + if (evsel->name == NULL) + goto out_err; + } + if (orig->group_name) { + evsel->group_name = strdup(orig->group_name); + if (evsel->group_name == NULL) + goto out_err; + } + if (orig->pmu_name) { + evsel->pmu_name = strdup(orig->pmu_name); + if (evsel->pmu_name == NULL) + goto out_err; + } + if (orig->filter) { + evsel->filter = strdup(orig->filter); + if (evsel->filter == NULL) + goto out_err; + } + evsel->cgrp = cgroup__get(orig->cgrp); + evsel->tp_format = orig->tp_format; + evsel->handler = orig->handler; + evsel->leader = orig->leader; + + evsel->max_events = orig->max_events; + evsel->tool_event = orig->tool_event; + evsel->unit = orig->unit; + evsel->scale = orig->scale; + evsel->snapshot = orig->snapshot; + evsel->per_pkg = orig->per_pkg; + evsel->percore = orig->percore; + evsel->precise_max = orig->precise_max; + evsel->use_uncore_alias = orig->use_uncore_alias; + evsel->is_libpfm_event = orig->is_libpfm_event; + + evsel->exclude_GH = orig->exclude_GH; + evsel->sample_read = orig->sample_read; + evsel->auto_merge_stats = orig->auto_merge_stats; + evsel->collect_stat = orig->collect_stat; + evsel->weak_group = orig->weak_group; + + if (evsel__copy_config_terms(evsel, orig) < 0) + goto out_err; + + return evsel; + +out_err: + evsel__delete(evsel); + return NULL; +} + /* * Returns pointer with encoded error via <linux/err.h> interface. */ diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index 35e3f6d66085..79a860d8e3ee 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -42,65 +42,79 @@ enum perf_tool_event { */ struct evsel { struct perf_evsel core; - struct evlist *evlist; - char *filter; + struct evlist *evlist; + off_t id_offset; + int idx; + int id_pos; + int is_pos; + unsigned int sample_size; + + /* + * These fields can be set in the parse-events code or similar. + * Please check evsel__clone() to copy them properly so that + * they can be released properly. + */ + struct { + char *name; + char *group_name; + const char *pmu_name; + struct tep_event *tp_format; + char *filter; + unsigned long max_events; + double scale; + const char *unit; + struct cgroup *cgrp; + enum perf_tool_event tool_event; + /* parse modifier helper */ + int exclude_GH; + int sample_read; + bool snapshot; + bool per_pkg; + bool percore; + bool precise_max; + bool use_uncore_alias; + bool is_libpfm_event; + bool auto_merge_stats; + bool collect_stat; + bool weak_group; + int bpf_fd; + struct bpf_object *bpf_obj; + }; + + /* + * metric fields are similar, but needs more care as they can have + * references to other metric (evsel). + */ + const char * metric_expr; + const char * metric_name; + struct evsel **metric_events; + struct evsel *metric_leader; + + void *handler; struct perf_counts *counts; struct perf_counts *prev_raw_counts; - int idx; - unsigned long max_events; unsigned long nr_events_printed; - char *name; - double scale; - const char *unit; - struct tep_event *tp_format; - off_t id_offset; struct perf_stat_evsel *stats; void *priv; u64 db_id; - struct cgroup *cgrp; - void *handler; - unsigned int sample_size; - int id_pos; - int is_pos; - enum perf_tool_event tool_event; bool uniquified_name; - bool snapshot; bool supported; bool needs_swap; bool disabled; bool no_aux_samples; bool immediate; bool tracking; - bool per_pkg; - bool precise_max; bool ignore_missing_thread; bool forced_leader; - bool use_uncore_alias; - bool is_libpfm_event; - /* parse modifier helper */ - int exclude_GH; - int sample_read; - unsigned long *per_pkg_mask; - struct evsel *leader; - char *group_name; bool cmdline_group_boundary; - struct list_head config_terms; - struct bpf_object *bpf_obj; - int bpf_fd; - int err; - bool auto_merge_stats; bool merged_stat; - const char * metric_expr; - const char * metric_name; - struct evsel **metric_events; - struct evsel *metric_leader; - bool collect_stat; - bool weak_group; bool reset_group; bool errored; - bool percore; + unsigned long *per_pkg_mask; + struct evsel *leader; + struct list_head config_terms; + int err; int cpu_iter; - const char *pmu_name; struct { evsel__sb_cb_t *cb; void *data; @@ -169,6 +183,7 @@ static inline struct evsel *evsel__new(struct perf_event_attr *attr) return evsel__new_idx(attr, 0); } +struct evsel *evsel__clone(struct evsel *orig); struct evsel *evsel__newtp_idx(const char *sys, const char *name, int idx); /* |