perf inject: Re-pipe AUX area tracing events
authorAdrian Hunter <adrian.hunter@intel.com>
Tue, 21 Apr 2015 09:21:54 +0000 (12:21 +0300)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Wed, 29 Apr 2015 13:37:57 +0000 (10:37 -0300)
New AUX area tracing events must be re-piped by default.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1429608114-18194-1-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/builtin-inject.c

index 40a33d7334cce224fb0ac8317554189f1821dfcf..8f4cad7e9fe7ffb20900361519815a2d73151090 100644 (file)
@@ -38,14 +38,11 @@ struct event_entry {
        union perf_event event[0];
 };
 
-static int perf_event__repipe_synth(struct perf_tool *tool,
-                                   union perf_event *event)
+static int output_bytes(struct perf_inject *inject, void *buf, size_t sz)
 {
-       struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
        ssize_t size;
 
-       size = perf_data_file__write(&inject->output, event,
-                                    event->header.size);
+       size = perf_data_file__write(&inject->output, buf, sz);
        if (size < 0)
                return -errno;
 
@@ -53,6 +50,34 @@ static int perf_event__repipe_synth(struct perf_tool *tool,
        return 0;
 }
 
+static int copy_bytes(struct perf_inject *inject, int fd, off_t size)
+{
+       char buf[4096];
+       ssize_t ssz;
+       int ret;
+
+       while (size > 0) {
+               ssz = read(fd, buf, min(size, (off_t)sizeof(buf)));
+               if (ssz < 0)
+                       return -errno;
+               ret = output_bytes(inject, buf, ssz);
+               if (ret)
+                       return ret;
+               size -= ssz;
+       }
+
+       return 0;
+}
+
+static int perf_event__repipe_synth(struct perf_tool *tool,
+                                   union perf_event *event)
+{
+       struct perf_inject *inject = container_of(tool, struct perf_inject,
+                                                 tool);
+
+       return output_bytes(inject, event, event->header.size);
+}
+
 static int perf_event__repipe_oe_synth(struct perf_tool *tool,
                                       union perf_event *event,
                                       struct ordered_events *oe __maybe_unused)
@@ -86,6 +111,31 @@ static int perf_event__repipe_attr(struct perf_tool *tool,
        return perf_event__repipe_synth(tool, event);
 }
 
+static s64 perf_event__repipe_auxtrace(struct perf_tool *tool,
+                                      union perf_event *event,
+                                      struct perf_session *session
+                                      __maybe_unused)
+{
+       struct perf_inject *inject = container_of(tool, struct perf_inject,
+                                                 tool);
+       int ret;
+
+       if (perf_data_file__is_pipe(session->file) || !session->one_mmap) {
+               ret = output_bytes(inject, event, event->header.size);
+               if (ret < 0)
+                       return ret;
+               ret = copy_bytes(inject, perf_data_file__fd(session->file),
+                                event->auxtrace.size);
+       } else {
+               ret = output_bytes(inject, event,
+                                  event->header.size + event->auxtrace.size);
+       }
+       if (ret < 0)
+               return ret;
+
+       return event->auxtrace.size;
+}
+
 static int perf_event__repipe(struct perf_tool *tool,
                              union perf_event *event,
                              struct perf_sample *sample __maybe_unused,
@@ -413,6 +463,9 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
                        .unthrottle     = perf_event__repipe,
                        .attr           = perf_event__repipe_attr,
                        .tracing_data   = perf_event__repipe_op2_synth,
+                       .auxtrace_info  = perf_event__repipe_op2_synth,
+                       .auxtrace       = perf_event__repipe_auxtrace,
+                       .auxtrace_error = perf_event__repipe_op2_synth,
                        .finished_round = perf_event__repipe_oe_synth,
                        .build_id       = perf_event__repipe_op2_synth,
                        .id_index       = perf_event__repipe_op2_synth,