diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 2ac19a2530a2821d815619c2c8042ac0265eeec4..1cad6051d8b0892c3f04213d93b0f871bd5bea20 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 35e3f6d66085b3885290e315e7268f0852f2bb1c..79a860d8e3eefe23b9271dff9dc2fb07d1dee981 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);
/*