perf scripting: Add scripting_context__update()

Move scripting_context update to a separate function and add
the arguments of ->process_event() to it.

This prepares the way for adding more methods to the perf_trace_context
module, by providing the context information that they will need.

Signed-off-by: Adrian Hunter <[e-mail]>
Cc: Andi Kleen <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/util/scripting-engines/trace-event-perl.c

···
 	s = nsecs / NSEC_PER_SEC;
 	ns = nsecs - s * NSEC_PER_SEC;
 
-	scripting_context->event_data = data;
-	scripting_context->pevent = evsel->tp_format->tep;
-
 	ENTER;
 	SAVETMPS;
 	PUSHMARK(SP);
···
 			       struct perf_sample *sample,
 			       struct evsel *evsel,
 			       struct addr_location *al,
-			       struct addr_location *addr_al __maybe_unused)
+			       struct addr_location *addr_al)
 {
+	scripting_context__update(scripting_context, event, sample, evsel, al, addr_al);
 	perl_process_tracepoint(sample, evsel, al);
 	perl_process_event_generic(event, sample, evsel);
 }

tools/perf/util/scripting-engines/trace-event-python.c

···
 	s = nsecs / NSEC_PER_SEC;
 	ns = nsecs - s * NSEC_PER_SEC;
 
-	scripting_context->event_data = data;
-	scripting_context->pevent = evsel->tp_format->tep;
-
 	context = _PyCapsule_New(scripting_context, NULL, NULL);
 
 	PyTuple_SetItem(t, n++, _PyUnicode_FromString(handler_name));
···
 				 struct addr_location *addr_al)
 {
 	struct tables *tables = &tables_global;
+
+	scripting_context__update(scripting_context, event, sample, evsel, al, addr_al);
 
 	switch (evsel->core.attr.type) {
 	case PERF_TYPE_TRACEPOINT:

tools/perf/util/trace-event-scripting.c

···
 
 #include "debug.h"
 #include "trace-event.h"
+#include "event.h"
+#include "evsel.h"
 #include <linux/zalloc.h>
 
 struct scripting_context *scripting_context;
+
+void scripting_context__update(struct scripting_context *c,
+			       union perf_event *event,
+			       struct perf_sample *sample,
+			       struct evsel *evsel,
+			       struct addr_location *al,
+			       struct addr_location *addr_al)
+{
+	c->event_data = sample->raw_data;
+	if (evsel->tp_format)
+		c->pevent = evsel->tp_format->tep;
+	else
+		c->pevent = NULL;
+	c->event = event;
+	c->sample = sample;
+	c->evsel = evsel;
+	c->al = al;
+	c->addr_al = addr_al;
+}
 
 static int flush_script_unsupported(void)
 {

tools/perf/util/trace-event.h

···
 struct perf_tool;
 struct thread;
 struct tep_plugin_list;
+struct evsel;
 
 struct trace_event {
 	struct tep_handle	*pevent;
···
 struct scripting_context {
 	struct tep_handle *pevent;
 	void *event_data;
+	union perf_event *event;
+	struct perf_sample *sample;
+	struct evsel *evsel;
+	struct addr_location *al;
+	struct addr_location *addr_al;
 };
+
+void scripting_context__update(struct scripting_context *scripting_context,
+			       union perf_event *event,
+			       struct perf_sample *sample,
+			       struct evsel *evsel,
+			       struct addr_location *al,
+			       struct addr_location *addr_al);
 
 int common_pc(struct scripting_context *context);
 int common_flags(struct scripting_context *context);