diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 05fa0010c858..ea9fa04429f0 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -254,6 +254,58 @@ const char *evsel__pmu_name(const struct evsel *evsel) return event_type(evsel->core.attr.type); } +enum evsel_probe_type { + PROBE__UNKNOWN = 0, + PROBE__NOPE = 1, + PROBE__KPROBE = 2, + PROBE__UPROBE = 3, + /* + * Ftrace-based dynamic probes (kprobes/uprobes/fprobes created via + * tracefs) report PMU "tracepoint", not "kprobe"/"uprobe". Detect + * them by the __probe_ip field that the kernel adds to all dynamic + * probe formats. + */ + PROBE__FTRACE = 4, +}; + +static void evsel__resolve_probe_type(struct evsel *evsel) +{ + const char *name = evsel__pmu_name(evsel); + + if (!strcmp(name, "kprobe")) + evsel->probe_type = PROBE__KPROBE; + else if (!strcmp(name, "uprobe")) + evsel->probe_type = PROBE__UPROBE; + else if (!strcmp(name, "tracepoint") && evsel__field(evsel, "__probe_ip")) + evsel->probe_type = PROBE__FTRACE; + else + evsel->probe_type = PROBE__NOPE; +} + +bool evsel__is_probe(struct evsel *evsel) +{ + if (evsel->probe_type == PROBE__UNKNOWN) + evsel__resolve_probe_type(evsel); + + return evsel->probe_type > PROBE__NOPE; +} + +bool evsel__is_kprobe(struct evsel *evsel) +{ + if (evsel->probe_type == PROBE__UNKNOWN) + evsel__resolve_probe_type(evsel); + + return evsel->probe_type == PROBE__KPROBE; +} + +bool evsel__is_uprobe(struct evsel *evsel) +{ + if (evsel->probe_type == PROBE__UNKNOWN) + evsel__resolve_probe_type(evsel); + + return evsel->probe_type == PROBE__UPROBE; +} + #define FD(e, x, y) (*(int *)xyarray__entry(e->core.fd, x, y)) int __evsel__sample_size(u64 sample_type) @@ -413,6 +465,7 @@ void evsel__init(struct evsel *evsel, evsel->supported = true; evsel->alternate_hw_config = PERF_COUNT_HW_MAX; evsel->script_output_type = -1; // FIXME: OUTPUT_TYPE_UNSET, see builtin-script.c + evsel->probe_type = PROBE__UNKNOWN; } struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx) diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index b959d4797b14..163fc2b6a7ea 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -126,6 +126,7 @@ struct evsel { bool needs_uniquify; bool fallenback_eacces; bool fallenback_eopnotsupp; + u8 probe_type:3; struct hashmap *per_pkg_mask; int err; int script_output_type; @@ -259,6 +260,10 @@ struct perf_pmu *evsel__find_pmu(const struct evsel *evsel); const char *evsel__pmu_name(const struct evsel *evsel); bool evsel__is_aux_event(const struct evsel *evsel); +bool evsel__is_probe(struct evsel *evsel); +bool evsel__is_kprobe(struct evsel *evsel); +bool evsel__is_uprobe(struct evsel *evsel); + struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx); static inline struct evsel *evsel__new(struct perf_event_attr *attr)