1 files changed, 99 insertions, 0 deletions
diff --git a/tools/perf/util/dlfilter.h b/tools/perf/util/dlfilter.h
new file mode 100644
index 000000000000..cc4bb9657d05
--- /dev/null
+++ b/tools/perf/util/dlfilter.h
@@ -0,0 +1,99 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * dlfilter.h: Interface to perf script --dlfilter shared object
+ * Copyright (c) 2021, Intel Corporation.
+ */
+
+#ifndef PERF_UTIL_DLFILTER_H
+#define PERF_UTIL_DLFILTER_H
+
+struct perf_session;
+union  perf_event;
+struct perf_sample;
+struct evsel;
+struct machine;
+struct addr_location;
+struct perf_dlfilter_fns;
+struct perf_dlfilter_sample;
+struct perf_dlfilter_al;
+
+struct dlfilter {
+	char				*file;
+	void				*handle;
+	void				*data;
+	struct perf_session		*session;
+	bool				ctx_valid;
+	bool				in_start;
+	bool				in_stop;
+	int				dlargc;
+	char				**dlargv;
+
+	union perf_event		*event;
+	struct perf_sample		*sample;
+	struct evsel			*evsel;
+	struct machine			*machine;
+	struct addr_location		*al;
+	struct addr_location		*addr_al;
+	struct perf_dlfilter_sample	*d_sample;
+	struct perf_dlfilter_al		*d_ip_al;
+	struct perf_dlfilter_al		*d_addr_al;
+
+	int (*start)(void **data, void *ctx);
+	int (*stop)(void *data, void *ctx);
+
+	int (*filter_event)(void *data,
+			    const struct perf_dlfilter_sample *sample,
+			    void *ctx);
+	int (*filter_event_early)(void *data,
+				  const struct perf_dlfilter_sample *sample,
+				  void *ctx);
+
+	struct perf_dlfilter_fns *fns;
+};
+
+struct dlfilter *dlfilter__new(const char *file, int dlargc, char **dlargv);
+
+int dlfilter__start(struct dlfilter *d, struct perf_session *session);
+
+int dlfilter__do_filter_event(struct dlfilter *d,
+			      union perf_event *event,
+			      struct perf_sample *sample,
+			      struct evsel *evsel,
+			      struct machine *machine,
+			      struct addr_location *al,
+			      struct addr_location *addr_al,
+			      bool early);
+
+void dlfilter__cleanup(struct dlfilter *d);
+
+static inline int dlfilter__filter_event(struct dlfilter *d,
+					 union perf_event *event,
+					 struct perf_sample *sample,
+					 struct evsel *evsel,
+					 struct machine *machine,
+					 struct addr_location *al,
+					 struct addr_location *addr_al)
+{
+	if (!d || !d->filter_event)
+		return 0;
+	return dlfilter__do_filter_event(d, event, sample, evsel, machine, al, addr_al, false);
+}
+
+static inline int dlfilter__filter_event_early(struct dlfilter *d,
+					       union perf_event *event,
+					       struct perf_sample *sample,
+					       struct evsel *evsel,
+					       struct machine *machine,
+					       struct addr_location *al,
+					       struct addr_location *addr_al)
+{
+	if (!d || !d->filter_event_early)
+		return 0;
+	return dlfilter__do_filter_event(d, event, sample, evsel, machine, al, addr_al, true);
+}
+
+int list_available_dlfilters(const struct option *opt, const char *s, int unset);
+bool get_filter_desc(const char *dirname, const char *name, char **desc,
+		     char **long_desc);
+
+#endif