Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic

Patches from David Howells <dhowells@redhat.com>:

This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.

Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.

* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate include/asm-generic
  UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
  c6x: remove c6x signal.h
  UAPI: Split compound conditionals containing __KERNEL__ in Arm64
  UAPI: Fix the guards on various asm/unistd.h files

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 98 insertions, 15 deletions

diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index ce4d1b0c3862..730c6630cba5 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -27,10 +27,12 @@
 #include <errno.h>
 
 #include "../../perf.h"
+#include "../evsel.h"
 #include "../util.h"
 #include "../event.h"
 #include "../thread.h"
 #include "../trace-event.h"
+#include "../evsel.h"
 
 PyMODINIT_FUNC initperf_trace_context(void);
 
@@ -194,16 +196,21 @@ static void define_event_symbols(struct event_format *event,
 		define_event_symbols(event, ev_name, args->next);
 }
 
-static inline
-struct event_format *find_cache_event(struct pevent *pevent, int type)
+static inline struct event_format *find_cache_event(struct perf_evsel *evsel)
 {
 	static char ev_name[256];
 	struct event_format *event;
+	int type = evsel->attr.config;
 
+	/*
+ 	 * XXX: Do we really need to cache this since now we have evsel->tp_format
+ 	 * cached already? Need to re-read this "cache" routine that as well calls
+ 	 * define_event_symbols() :-\
+ 	 */
 	if (events[type])
 		return events[type];
 
-	events[type] = event = pevent_find_event(pevent, type);
+	events[type] = event = evsel->tp_format;
 	if (!event)
 		return NULL;
 
@@ -214,12 +221,12 @@ struct event_format *find_cache_event(struct pevent *pevent, int type)
 	return event;
 }
 
-static void python_process_event(union perf_event *perf_event __unused,
-				 struct pevent *pevent,
+static void python_process_tracepoint(union perf_event *perf_event
+				      __maybe_unused,
 				 struct perf_sample *sample,
-				 struct perf_evsel *evsel __unused,
-				 struct machine *machine __unused,
-				 struct thread *thread)
+				 struct perf_evsel *evsel,
+				 struct machine *machine __maybe_unused,
+				 struct addr_location *al)
 {
 	PyObject *handler, *retval, *context, *t, *obj, *dict = NULL;
 	static char handler_name[256];
@@ -228,24 +235,22 @@ static void python_process_event(union perf_event *perf_event __unused,
 	unsigned long s, ns;
 	struct event_format *event;
 	unsigned n = 0;
-	int type;
 	int pid;
 	int cpu = sample->cpu;
 	void *data = sample->raw_data;
 	unsigned long long nsecs = sample->time;
+	struct thread *thread = al->thread;
 	char *comm = thread->comm;
 
 	t = PyTuple_New(MAX_FIELDS);
 	if (!t)
 		Py_FatalError("couldn't create Python tuple");
 
-	type = trace_parse_common_type(pevent, data);
-
-	event = find_cache_event(pevent, type);
+	event = find_cache_event(evsel);
 	if (!event)
-		die("ug! no event found for type %d", type);
+		die("ug! no event found for type %d", (int)evsel->attr.config);
 
-	pid = trace_parse_common_pid(pevent, data);
+	pid = raw_field_value(event, "common_pid", data);
 
 	sprintf(handler_name, "%s__%s", event->system, event->name);
 
@@ -290,7 +295,7 @@ static void python_process_event(union perf_event *perf_event __unused,
 				offset = field->offset;
 			obj = PyString_FromString((char *)data + offset);
 		} else { /* FIELD_IS_NUMERIC */
-			val = read_size(pevent, data + field->offset,
+			val = read_size(event, data + field->offset,
 					field->size);
 			if (field->flags & FIELD_IS_SIGNED) {
 				if ((long long)val >= LONG_MIN &&
@@ -335,6 +340,84 @@ static void python_process_event(union perf_event *perf_event __unused,
 	Py_DECREF(t);
 }
 
+static void python_process_general_event(union perf_event *perf_event
+					 __maybe_unused,
+					 struct perf_sample *sample,
+					 struct perf_evsel *evsel,
+					 struct machine *machine __maybe_unused,
+					 struct addr_location *al)
+{
+	PyObject *handler, *retval, *t, *dict;
+	static char handler_name[64];
+	unsigned n = 0;
+	struct thread *thread = al->thread;
+
+	/*
+	 * Use the MAX_FIELDS to make the function expandable, though
+	 * currently there is only one item for the tuple.
+	 */
+	t = PyTuple_New(MAX_FIELDS);
+	if (!t)
+		Py_FatalError("couldn't create Python tuple");
+
+	dict = PyDict_New();
+	if (!dict)
+		Py_FatalError("couldn't create Python dictionary");
+
+	snprintf(handler_name, sizeof(handler_name), "%s", "process_event");
+
+	handler = PyDict_GetItemString(main_dict, handler_name);
+	if (!handler || !PyCallable_Check(handler))
+		goto exit;
+
+	PyDict_SetItemString(dict, "ev_name", PyString_FromString(perf_evsel__name(evsel)));
+	PyDict_SetItemString(dict, "attr", PyString_FromStringAndSize(
+			(const char *)&evsel->attr, sizeof(evsel->attr)));
+	PyDict_SetItemString(dict, "sample", PyString_FromStringAndSize(
+			(const char *)sample, sizeof(*sample)));
+	PyDict_SetItemString(dict, "raw_buf", PyString_FromStringAndSize(
+			(const char *)sample->raw_data, sample->raw_size));
+	PyDict_SetItemString(dict, "comm",
+			PyString_FromString(thread->comm));
+	if (al->map) {
+		PyDict_SetItemString(dict, "dso",
+			PyString_FromString(al->map->dso->name));
+	}
+	if (al->sym) {
+		PyDict_SetItemString(dict, "symbol",
+			PyString_FromString(al->sym->name));
+	}
+
+	PyTuple_SetItem(t, n++, dict);
+	if (_PyTuple_Resize(&t, n) == -1)
+		Py_FatalError("error resizing Python tuple");
+
+	retval = PyObject_CallObject(handler, t);
+	if (retval == NULL)
+		handler_call_die(handler_name);
+exit:
+	Py_DECREF(dict);
+	Py_DECREF(t);
+}
+
+static void python_process_event(union perf_event *perf_event,
+				 struct perf_sample *sample,
+				 struct perf_evsel *evsel,
+				 struct machine *machine,
+				 struct addr_location *al)
+{
+	switch (evsel->attr.type) {
+	case PERF_TYPE_TRACEPOINT:
+		python_process_tracepoint(perf_event, sample, evsel,
+					  machine, al);
+		break;
+	/* Reserve for future process_hw/sw/raw APIs */
+	default:
+		python_process_general_event(perf_event, sample, evsel,
+					     machine, al);
+	}
+}
+
 static int run_start_sub(void)
 {
 	PyObject *handler, *retval;