diff options
Diffstat (limited to 'tools/perf/util/evlist.c')
| -rw-r--r-- | tools/perf/util/evlist.c | 89 |
1 files changed, 86 insertions, 3 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 3a719edafc7a..f14b7e6ff1dc 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -33,6 +33,8 @@ #include "util/bpf-filter.h" #include "util/stat.h" #include "util/util.h" +#include "util/env.h" +#include "util/intel-tpebs.h" #include <signal.h> #include <unistd.h> #include <sched.h> @@ -78,6 +80,7 @@ void evlist__init(struct evlist *evlist, struct perf_cpu_map *cpus, evlist->ctl_fd.fd = -1; evlist->ctl_fd.ack = -1; evlist->ctl_fd.pos = -1; + evlist->nr_br_cntr = -1; } struct evlist *evlist__new(void) @@ -179,6 +182,7 @@ void evlist__delete(struct evlist *evlist) if (evlist == NULL) return; + tpebs_delete(); evlist__free_stats(evlist); evlist__munmap(evlist); evlist__close(evlist); @@ -1063,7 +1067,7 @@ int evlist__create_maps(struct evlist *evlist, struct target *target) if (!threads) return -1; - if (target__uses_dummy_map(target)) + if (target__uses_dummy_map(target) && !evlist__has_bpf_output(evlist)) cpus = perf_cpu_map__new_any_cpu(); else cpus = perf_cpu_map__new(target->cpu_list); @@ -1086,7 +1090,8 @@ out_delete_threads: return -1; } -int evlist__apply_filters(struct evlist *evlist, struct evsel **err_evsel) +int evlist__apply_filters(struct evlist *evlist, struct evsel **err_evsel, + struct target *target) { struct evsel *evsel; int err = 0; @@ -1108,7 +1113,7 @@ int evlist__apply_filters(struct evlist *evlist, struct evsel **err_evsel) * non-tracepoint events can have BPF filters. */ if (!list_empty(&evsel->bpf_filters)) { - err = perf_bpf_filter__prepare(evsel); + err = perf_bpf_filter__prepare(evsel, target); if (err) { *err_evsel = evsel; break; @@ -1261,6 +1266,72 @@ u64 evlist__combined_branch_type(struct evlist *evlist) return branch_type; } +static struct evsel * +evlist__find_dup_event_from_prev(struct evlist *evlist, struct evsel *event) +{ + struct evsel *pos; + + evlist__for_each_entry(evlist, pos) { + if (event == pos) + break; + if ((pos->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_COUNTERS) && + !strcmp(pos->name, event->name)) + return pos; + } + return NULL; +} + +#define MAX_NR_ABBR_NAME (26 * 11) + +/* + * The abbr name is from A to Z9. If the number of event + * which requires the branch counter > MAX_NR_ABBR_NAME, + * return NA. + */ +static void evlist__new_abbr_name(char *name) +{ + static int idx; + int i = idx / 26; + + if (idx >= MAX_NR_ABBR_NAME) { + name[0] = 'N'; + name[1] = 'A'; + name[2] = '\0'; + return; + } + + name[0] = 'A' + (idx % 26); + + if (!i) + name[1] = '\0'; + else { + name[1] = '0' + i - 1; + name[2] = '\0'; + } + + idx++; +} + +void evlist__update_br_cntr(struct evlist *evlist) +{ + struct evsel *evsel, *dup; + int i = 0; + + evlist__for_each_entry(evlist, evsel) { + if (evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_COUNTERS) { + evsel->br_cntr_idx = i++; + evsel__leader(evsel)->br_cntr_nr++; + + dup = evlist__find_dup_event_from_prev(evlist, evsel); + if (dup) + memcpy(evsel->abbr_name, dup->abbr_name, 3 * sizeof(char)); + else + evlist__new_abbr_name(evsel->abbr_name); + } + } + evlist->nr_br_cntr = i; +} + bool evlist__valid_read_format(struct evlist *evlist) { struct evsel *first = evlist__first(evlist), *pos = first; @@ -2556,3 +2627,15 @@ void evlist__uniquify_name(struct evlist *evlist) } } } + +bool evlist__has_bpf_output(struct evlist *evlist) +{ + struct evsel *evsel; + + evlist__for_each_entry(evlist, evsel) { + if (evsel__is_bpf_output(evsel)) + return true; + } + + return false; +} |