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-rw-r--r--tools/perf/util/auxtrace.h55
-rw-r--r--tools/perf/util/session.c54
-rw-r--r--tools/perf/util/session.h3
3 files changed, 102 insertions, 10 deletions
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index 7ab4850703f0..199fc27b3954 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -23,6 +23,7 @@
#include <linux/types.h>
#include "../perf.h"
+#include "session.h"
union perf_event;
struct perf_session;
@@ -32,6 +33,24 @@ struct record_opts;
struct auxtrace_info_event;
/**
+ * struct auxtrace - session callbacks to allow AUX area data decoding.
+ * @process_event: lets the decoder see all session events
+ * @flush_events: process any remaining data
+ * @free_events: free resources associated with event processing
+ * @free: free resources associated with the session
+ */
+struct auxtrace {
+ int (*process_event)(struct perf_session *session,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_tool *tool);
+ int (*flush_events)(struct perf_session *session,
+ struct perf_tool *tool);
+ void (*free_events)(struct perf_session *session);
+ void (*free)(struct perf_session *session);
+};
+
+/**
* struct auxtrace_mmap - records an mmap of the auxtrace buffer.
* @base: address of mapped area
* @userpg: pointer to buffer's perf_event_mmap_page
@@ -168,4 +187,40 @@ int perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr,
struct perf_session *session,
perf_event__handler_t process);
+static inline int auxtrace__process_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_tool *tool)
+{
+ if (!session->auxtrace)
+ return 0;
+
+ return session->auxtrace->process_event(session, event, sample, tool);
+}
+
+static inline int auxtrace__flush_events(struct perf_session *session,
+ struct perf_tool *tool)
+{
+ if (!session->auxtrace)
+ return 0;
+
+ return session->auxtrace->flush_events(session, tool);
+}
+
+static inline void auxtrace__free_events(struct perf_session *session)
+{
+ if (!session->auxtrace)
+ return;
+
+ return session->auxtrace->free_events(session);
+}
+
+static inline void auxtrace__free(struct perf_session *session)
+{
+ if (!session->auxtrace)
+ return;
+
+ return session->auxtrace->free(session);
+}
+
#endif
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 4008dab73424..7271c6bcb2dc 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -15,12 +15,13 @@
#include "cpumap.h"
#include "perf_regs.h"
#include "asm/bug.h"
+#include "auxtrace.h"
-static int machines__deliver_event(struct machines *machines,
- struct perf_evlist *evlist,
- union perf_event *event,
- struct perf_sample *sample,
- struct perf_tool *tool, u64 file_offset);
+static int perf_session__deliver_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_tool *tool,
+ u64 file_offset);
static int perf_session__open(struct perf_session *session)
{
@@ -105,8 +106,8 @@ static int ordered_events__deliver_event(struct ordered_events *oe,
return ret;
}
- return machines__deliver_event(&session->machines, session->evlist, event->event,
- &sample, session->tool, event->file_offset);
+ return perf_session__deliver_event(session, event->event, &sample,
+ session->tool, event->file_offset);
}
struct perf_session *perf_session__new(struct perf_data_file *file,
@@ -185,6 +186,7 @@ static void perf_session_env__delete(struct perf_session_env *env)
void perf_session__delete(struct perf_session *session)
{
+ auxtrace__free(session);
perf_session__destroy_kernel_maps(session);
perf_session__delete_threads(session);
perf_session_env__delete(&session->header.env);
@@ -1030,6 +1032,24 @@ static int machines__deliver_event(struct machines *machines,
}
}
+static int perf_session__deliver_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_tool *tool,
+ u64 file_offset)
+{
+ int ret;
+
+ ret = auxtrace__process_event(session, event, sample, tool);
+ if (ret < 0)
+ return ret;
+ if (ret > 0)
+ return 0;
+
+ return machines__deliver_event(&session->machines, session->evlist,
+ event, sample, tool, file_offset);
+}
+
static s64 perf_session__process_user_event(struct perf_session *session,
union perf_event *event,
u64 file_offset)
@@ -1190,8 +1210,8 @@ static s64 perf_session__process_event(struct perf_session *session,
return ret;
}
- return machines__deliver_event(&session->machines, evlist, event,
- &sample, tool, file_offset);
+ return perf_session__deliver_event(session, event, &sample, tool,
+ file_offset);
}
void perf_event_header__bswap(struct perf_event_header *hdr)
@@ -1350,10 +1370,14 @@ more:
done:
/* do the final flush for ordered samples */
err = ordered_events__flush(oe, OE_FLUSH__FINAL);
+ if (err)
+ goto out_err;
+ err = auxtrace__flush_events(session, tool);
out_err:
free(buf);
perf_session__warn_about_errors(session);
ordered_events__free(&session->ordered_events);
+ auxtrace__free_events(session);
return err;
}
@@ -1496,10 +1520,14 @@ more:
out:
/* do the final flush for ordered samples */
err = ordered_events__flush(oe, OE_FLUSH__FINAL);
+ if (err)
+ goto out_err;
+ err = auxtrace__flush_events(session, tool);
out_err:
ui_progress__finish();
perf_session__warn_about_errors(session);
ordered_events__free(&session->ordered_events);
+ auxtrace__free_events(session);
session->one_mmap = false;
return err;
}
@@ -1582,7 +1610,13 @@ size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp
size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp)
{
- size_t ret = fprintf(fp, "Aggregated stats:\n");
+ size_t ret;
+ const char *msg = "";
+
+ if (perf_header__has_feat(&session->header, HEADER_AUXTRACE))
+ msg = " (excludes AUX area (e.g. instruction trace) decoded / synthesized events)";
+
+ ret = fprintf(fp, "Aggregated stats:%s\n", msg);
ret += events_stats__fprintf(&session->evlist->stats, fp);
return ret;
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index d5fa7b7916ef..8a69d3bfafdf 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -15,10 +15,13 @@
struct ip_callchain;
struct thread;
+struct auxtrace;
+
struct perf_session {
struct perf_header header;
struct machines machines;
struct perf_evlist *evlist;
+ struct auxtrace *auxtrace;
struct trace_event tevent;
bool repipe;
bool one_mmap;
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-05 08:09:10 +0100