Merge tag 'disintegrate-mtd-20121009' of git://git.infradead.org/users/dhowells/linux-headers

UAPI Disintegration 2012-10-09

Conflicts:
	MAINTAINERS
	arch/arm/configs/bcmring_defconfig
	arch/arm/mach-imx/clk-imx51-imx53.c
	drivers/mtd/nand/Kconfig
	drivers/mtd/nand/bcm_umi_nand.c
	drivers/mtd/nand/nand_bcm_umi.h
	drivers/mtd/nand/orion_nand.c

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;