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-rw-r--r--tools/perf/Makefile20
-rwxr-xr-xtools/perf/python/twatch.py41
-rw-r--r--tools/perf/util/python.c888
-rw-r--r--tools/perf/util/setup.py18
4 files changed, 966 insertions, 1 deletions
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index eedcf9541572..36ff73c0af94 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -315,6 +315,7 @@ COMPAT_CFLAGS =
315COMPAT_OBJS = 315COMPAT_OBJS =
316LIB_H = 316LIB_H =
317LIB_OBJS = 317LIB_OBJS =
318PYRF_OBJS =
318SCRIPT_PERL = 319SCRIPT_PERL =
319SCRIPT_SH = 320SCRIPT_SH =
320TEST_PROGRAMS = 321TEST_PROGRAMS =
@@ -324,6 +325,9 @@ SCRIPT_SH += perf-archive.sh
324grep-libs = $(filter -l%,$(1)) 325grep-libs = $(filter -l%,$(1))
325strip-libs = $(filter-out -l%,$(1)) 326strip-libs = $(filter-out -l%,$(1))
326 327
328pyrf: $(PYRF_OBJS)
329 python util/setup.py build --build-base='$(OUTPUT)'
330
327# 331#
328# No Perl scripts right now: 332# No Perl scripts right now:
329# 333#
@@ -349,7 +353,7 @@ PROGRAMS += $(OUTPUT)perf
349# 353#
350 354
351# what 'all' will build and 'install' will install, in perfexecdir 355# what 'all' will build and 'install' will install, in perfexecdir
352ALL_PROGRAMS = $(PROGRAMS) $(SCRIPTS) 356ALL_PROGRAMS = $(PROGRAMS) $(SCRIPTS) pyrf
353 357
354# what 'all' will build but not install in perfexecdir 358# what 'all' will build but not install in perfexecdir
355OTHER_PROGRAMS = $(OUTPUT)perf$X 359OTHER_PROGRAMS = $(OUTPUT)perf$X
@@ -520,6 +524,20 @@ BUILTIN_OBJS += $(OUTPUT)builtin-inject.o
520 524
521PERFLIBS = $(LIB_FILE) 525PERFLIBS = $(LIB_FILE)
522 526
527# Files needed for the python binding, perf.so
528# pyrf is just an internal name needed for all those wrappers.
529# This has to be in sync with what is in the 'sources' variable in
530# tools/perf/util/setup.py
531
532PYRF_OBJS += $(OUTPUT)util/cpumap.o
533PYRF_OBJS += $(OUTPUT)util/ctype.o
534PYRF_OBJS += $(OUTPUT)util/evlist.o
535PYRF_OBJS += $(OUTPUT)util/evsel.o
536PYRF_OBJS += $(OUTPUT)util/python.o
537PYRF_OBJS += $(OUTPUT)util/thread_map.o
538PYRF_OBJS += $(OUTPUT)util/util.o
539PYRF_OBJS += $(OUTPUT)util/xyarray.o
540
523# 541#
524# Platform specific tweaks 542# Platform specific tweaks
525# 543#
diff --git a/tools/perf/python/twatch.py b/tools/perf/python/twatch.py
new file mode 100755
index 000000000000..5e9f3b7b7ee8
--- /dev/null
+++ b/tools/perf/python/twatch.py
@@ -0,0 +1,41 @@
1#! /usr/bin/python
2# -*- python -*-
3# -*- coding: utf-8 -*-
4# twatch - Experimental use of the perf python interface
5# Copyright (C) 2011 Arnaldo Carvalho de Melo <acme@redhat.com>
6#
7# This application is free software; you can redistribute it and/or
8# modify it under the terms of the GNU General Public License
9# as published by the Free Software Foundation; version 2.
10#
11# This application is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14# General Public License for more details.
15
16import perf
17
18def main():
19 cpus = perf.cpu_map()
20 threads = perf.thread_map()
21 evsel = perf.evsel(task = 1, comm = 1, mmap = 0,
22 wakeup_events = 1, sample_period = 1,
23 sample_id_all = 1,
24 sample_type = perf.SAMPLE_PERIOD | perf.SAMPLE_TID | perf.SAMPLE_CPU | perf.SAMPLE_TID)
25 evsel.open(cpus = cpus, threads = threads);
26 evlist = perf.evlist()
27 evlist.add(evsel)
28 evlist.mmap(cpus = cpus, threads = threads)
29 while True:
30 evlist.poll(timeout = -1)
31 for cpu in cpus:
32 event = evlist.read_on_cpu(cpu)
33 if not event:
34 continue
35 print "cpu: %2d, pid: %4d, tid: %4d" % (event.sample_cpu,
36 event.sample_pid,
37 event.sample_tid),
38 print event
39
40if __name__ == '__main__':
41 main()
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
new file mode 100644
index 000000000000..88d47895a79c
--- /dev/null
+++ b/tools/perf/util/python.c
@@ -0,0 +1,888 @@
1#include <Python.h>
2#include <structmember.h>
3#include <inttypes.h>
4#include <poll.h>
5#include "evlist.h"
6#include "evsel.h"
7#include "event.h"
8#include "cpumap.h"
9#include "thread_map.h"
10
11struct throttle_event {
12 struct perf_event_header header;
13 u64 time;
14 u64 id;
15 u64 stream_id;
16};
17
18#define member_def(type, member, ptype, help) \
19 { #member, ptype, \
20 offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
21 0, help }
22
23#define sample_member_def(name, member, ptype, help) \
24 { #name, ptype, \
25 offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
26 0, help }
27
28struct pyrf_event {
29 PyObject_HEAD
30 struct perf_sample sample;
31 union perf_event event;
32};
33
34#define T_ULONG_LONG T_ULONG
35
36#define sample_members \
37 sample_member_def(sample_ip, ip, T_ULONG_LONG, "event type"), \
38 sample_member_def(sample_pid, pid, T_INT, "event pid"), \
39 sample_member_def(sample_tid, tid, T_INT, "event tid"), \
40 sample_member_def(sample_time, time, T_ULONG_LONG, "event timestamp"), \
41 sample_member_def(sample_addr, addr, T_ULONG_LONG, "event addr"), \
42 sample_member_def(sample_id, id, T_ULONG_LONG, "event id"), \
43 sample_member_def(sample_stream_id, stream_id, T_ULONG_LONG, "event stream id"), \
44 sample_member_def(sample_period, period, T_ULONG_LONG, "event period"), \
45 sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
46
47static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
48
49static PyMemberDef pyrf_mmap_event__members[] = {
50 sample_members
51 member_def(perf_event_header, type, T_UINT, "event type"),
52 member_def(mmap_event, pid, T_UINT, "event pid"),
53 member_def(mmap_event, tid, T_UINT, "event tid"),
54 member_def(mmap_event, start, T_ULONG_LONG, "start of the map"),
55 member_def(mmap_event, len, T_ULONG_LONG, "map length"),
56 member_def(mmap_event, pgoff, T_ULONG_LONG, "page offset"),
57 member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),
58 { NULL, },
59};
60
61static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
62{
63 PyObject *ret;
64 char *s;
65
66 if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
67 "length: %#" PRIx64 ", offset: %#" PRIx64 ", "
68 "filename: %s }",
69 pevent->event.mmap.pid, pevent->event.mmap.tid,
70 pevent->event.mmap.start, pevent->event.mmap.len,
71 pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
72 ret = PyErr_NoMemory();
73 } else {
74 ret = PyString_FromString(s);
75 free(s);
76 }
77 return ret;
78}
79
80static PyTypeObject pyrf_mmap_event__type = {
81 PyVarObject_HEAD_INIT(NULL, 0)
82 .tp_name = "perf.mmap_event",
83 .tp_basicsize = sizeof(struct pyrf_event),
84 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
85 .tp_doc = pyrf_mmap_event__doc,
86 .tp_members = pyrf_mmap_event__members,
87 .tp_repr = (reprfunc)pyrf_mmap_event__repr,
88};
89
90static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
91
92static PyMemberDef pyrf_task_event__members[] = {
93 sample_members
94 member_def(perf_event_header, type, T_UINT, "event type"),
95 member_def(fork_event, pid, T_UINT, "event pid"),
96 member_def(fork_event, ppid, T_UINT, "event ppid"),
97 member_def(fork_event, tid, T_UINT, "event tid"),
98 member_def(fork_event, ptid, T_UINT, "event ptid"),
99 member_def(fork_event, time, T_ULONG_LONG, "timestamp"),
100 { NULL, },
101};
102
103static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
104{
105 return PyString_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
106 "ptid: %u, time: %" PRIu64 "}",
107 pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
108 pevent->event.fork.pid,
109 pevent->event.fork.ppid,
110 pevent->event.fork.tid,
111 pevent->event.fork.ptid,
112 pevent->event.fork.time);
113}
114
115static PyTypeObject pyrf_task_event__type = {
116 PyVarObject_HEAD_INIT(NULL, 0)
117 .tp_name = "perf.task_event",
118 .tp_basicsize = sizeof(struct pyrf_event),
119 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
120 .tp_doc = pyrf_task_event__doc,
121 .tp_members = pyrf_task_event__members,
122 .tp_repr = (reprfunc)pyrf_task_event__repr,
123};
124
125static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
126
127static PyMemberDef pyrf_comm_event__members[] = {
128 sample_members
129 member_def(perf_event_header, type, T_UINT, "event type"),
130 member_def(comm_event, pid, T_UINT, "event pid"),
131 member_def(comm_event, tid, T_UINT, "event tid"),
132 member_def(comm_event, comm, T_STRING_INPLACE, "process name"),
133 { NULL, },
134};
135
136static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
137{
138 return PyString_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
139 pevent->event.comm.pid,
140 pevent->event.comm.tid,
141 pevent->event.comm.comm);
142}
143
144static PyTypeObject pyrf_comm_event__type = {
145 PyVarObject_HEAD_INIT(NULL, 0)
146 .tp_name = "perf.comm_event",
147 .tp_basicsize = sizeof(struct pyrf_event),
148 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
149 .tp_doc = pyrf_comm_event__doc,
150 .tp_members = pyrf_comm_event__members,
151 .tp_repr = (reprfunc)pyrf_comm_event__repr,
152};
153
154static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
155
156static PyMemberDef pyrf_throttle_event__members[] = {
157 sample_members
158 member_def(perf_event_header, type, T_UINT, "event type"),
159 member_def(throttle_event, time, T_ULONG_LONG, "timestamp"),
160 member_def(throttle_event, id, T_ULONG_LONG, "event id"),
161 member_def(throttle_event, stream_id, T_ULONG_LONG, "event stream id"),
162 { NULL, },
163};
164
165static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
166{
167 struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
168
169 return PyString_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
170 ", stream_id: %" PRIu64 " }",
171 pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
172 te->time, te->id, te->stream_id);
173}
174
175static PyTypeObject pyrf_throttle_event__type = {
176 PyVarObject_HEAD_INIT(NULL, 0)
177 .tp_name = "perf.throttle_event",
178 .tp_basicsize = sizeof(struct pyrf_event),
179 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
180 .tp_doc = pyrf_throttle_event__doc,
181 .tp_members = pyrf_throttle_event__members,
182 .tp_repr = (reprfunc)pyrf_throttle_event__repr,
183};
184
185static int pyrf_event__setup_types(void)
186{
187 int err;
188 pyrf_mmap_event__type.tp_new =
189 pyrf_task_event__type.tp_new =
190 pyrf_comm_event__type.tp_new =
191 pyrf_throttle_event__type.tp_new = PyType_GenericNew;
192 err = PyType_Ready(&pyrf_mmap_event__type);
193 if (err < 0)
194 goto out;
195 err = PyType_Ready(&pyrf_task_event__type);
196 if (err < 0)
197 goto out;
198 err = PyType_Ready(&pyrf_comm_event__type);
199 if (err < 0)
200 goto out;
201 err = PyType_Ready(&pyrf_throttle_event__type);
202 if (err < 0)
203 goto out;
204out:
205 return err;
206}
207
208static PyTypeObject *pyrf_event__type[] = {
209 [PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
210 [PERF_RECORD_LOST] = &pyrf_mmap_event__type,
211 [PERF_RECORD_COMM] = &pyrf_comm_event__type,
212 [PERF_RECORD_EXIT] = &pyrf_task_event__type,
213 [PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
214 [PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
215 [PERF_RECORD_FORK] = &pyrf_task_event__type,
216 [PERF_RECORD_READ] = &pyrf_mmap_event__type,
217 [PERF_RECORD_SAMPLE] = &pyrf_mmap_event__type,
218};
219
220static PyObject *pyrf_event__new(union perf_event *event)
221{
222 struct pyrf_event *pevent;
223 PyTypeObject *ptype;
224
225 if (event->header.type < PERF_RECORD_MMAP ||
226 event->header.type > PERF_RECORD_SAMPLE)
227 return NULL;
228
229 ptype = pyrf_event__type[event->header.type];
230 pevent = PyObject_New(struct pyrf_event, ptype);
231 if (pevent != NULL)
232 memcpy(&pevent->event, event, event->header.size);
233 return (PyObject *)pevent;
234}
235
236struct pyrf_cpu_map {
237 PyObject_HEAD
238
239 struct cpu_map *cpus;
240};
241
242static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
243 PyObject *args, PyObject *kwargs)
244{
245 static char *kwlist[] = { "cpustr", NULL, NULL, };
246 char *cpustr = NULL;
247
248 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
249 kwlist, &cpustr))
250 return -1;
251
252 pcpus->cpus = cpu_map__new(cpustr);
253 if (pcpus->cpus == NULL)
254 return -1;
255 return 0;
256}
257
258static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
259{
260 cpu_map__delete(pcpus->cpus);
261 pcpus->ob_type->tp_free((PyObject*)pcpus);
262}
263
264static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
265{
266 struct pyrf_cpu_map *pcpus = (void *)obj;
267
268 return pcpus->cpus->nr;
269}
270
271static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
272{
273 struct pyrf_cpu_map *pcpus = (void *)obj;
274
275 if (i >= pcpus->cpus->nr)
276 return NULL;
277
278 return Py_BuildValue("i", pcpus->cpus->map[i]);
279}
280
281static PySequenceMethods pyrf_cpu_map__sequence_methods = {
282 .sq_length = pyrf_cpu_map__length,
283 .sq_item = pyrf_cpu_map__item,
284};
285
286static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
287
288static PyTypeObject pyrf_cpu_map__type = {
289 PyVarObject_HEAD_INIT(NULL, 0)
290 .tp_name = "perf.cpu_map",
291 .tp_basicsize = sizeof(struct pyrf_cpu_map),
292 .tp_dealloc = (destructor)pyrf_cpu_map__delete,
293 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
294 .tp_doc = pyrf_cpu_map__doc,
295 .tp_as_sequence = &pyrf_cpu_map__sequence_methods,
296 .tp_init = (initproc)pyrf_cpu_map__init,
297};
298
299static int pyrf_cpu_map__setup_types(void)
300{
301 pyrf_cpu_map__type.tp_new = PyType_GenericNew;
302 return PyType_Ready(&pyrf_cpu_map__type);
303}
304
305struct pyrf_thread_map {
306 PyObject_HEAD
307
308 struct thread_map *threads;
309};
310
311static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
312 PyObject *args, PyObject *kwargs)
313{
314 static char *kwlist[] = { "pid", "tid", NULL, NULL, };
315 int pid = -1, tid = -1;
316
317 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii",
318 kwlist, &pid, &tid))
319 return -1;
320
321 pthreads->threads = thread_map__new(pid, tid);
322 if (pthreads->threads == NULL)
323 return -1;
324 return 0;
325}
326
327static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
328{
329 thread_map__delete(pthreads->threads);
330 pthreads->ob_type->tp_free((PyObject*)pthreads);
331}
332
333static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
334{
335 struct pyrf_thread_map *pthreads = (void *)obj;
336
337 return pthreads->threads->nr;
338}
339
340static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
341{
342 struct pyrf_thread_map *pthreads = (void *)obj;
343
344 if (i >= pthreads->threads->nr)
345 return NULL;
346
347 return Py_BuildValue("i", pthreads->threads->map[i]);
348}
349
350static PySequenceMethods pyrf_thread_map__sequence_methods = {
351 .sq_length = pyrf_thread_map__length,
352 .sq_item = pyrf_thread_map__item,
353};
354
355static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
356
357static PyTypeObject pyrf_thread_map__type = {
358 PyVarObject_HEAD_INIT(NULL, 0)
359 .tp_name = "perf.thread_map",
360 .tp_basicsize = sizeof(struct pyrf_thread_map),
361 .tp_dealloc = (destructor)pyrf_thread_map__delete,
362 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
363 .tp_doc = pyrf_thread_map__doc,
364 .tp_as_sequence = &pyrf_thread_map__sequence_methods,
365 .tp_init = (initproc)pyrf_thread_map__init,
366};
367
368static int pyrf_thread_map__setup_types(void)
369{
370 pyrf_thread_map__type.tp_new = PyType_GenericNew;
371 return PyType_Ready(&pyrf_thread_map__type);
372}
373
374struct pyrf_evsel {
375 PyObject_HEAD
376
377 struct perf_evsel evsel;
378};
379
380static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
381 PyObject *args, PyObject *kwargs)
382{
383 struct perf_event_attr attr = {
384 .type = PERF_TYPE_HARDWARE,
385 .config = PERF_COUNT_HW_CPU_CYCLES,
386 .sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
387 };
388 static char *kwlist[] = {
389 "type",
390 "config",
391 "sample_freq",
392 "sample_period",
393 "sample_type",
394 "read_format",
395 "disabled",
396 "inherit",
397 "pinned",
398 "exclusive",
399 "exclude_user",
400 "exclude_kernel",
401 "exclude_hv",
402 "exclude_idle",
403 "mmap",
404 "comm",
405 "freq",
406 "inherit_stat",
407 "enable_on_exec",
408 "task",
409 "watermark",
410 "precise_ip",
411 "mmap_data",
412 "sample_id_all",
413 "wakeup_events",
414 "bp_type",
415 "bp_addr",
416 "bp_len", NULL, NULL, };
417 u64 sample_period = 0;
418 u32 disabled = 0,
419 inherit = 0,
420 pinned = 0,
421 exclusive = 0,
422 exclude_user = 0,
423 exclude_kernel = 0,
424 exclude_hv = 0,
425 exclude_idle = 0,
426 mmap = 0,
427 comm = 0,
428 freq = 1,
429 inherit_stat = 0,
430 enable_on_exec = 0,
431 task = 0,
432 watermark = 0,
433 precise_ip = 0,
434 mmap_data = 0,
435 sample_id_all = 1;
436 int idx = 0;
437
438 if (!PyArg_ParseTupleAndKeywords(args, kwargs,
439 "|iKiKKiiiiiiiiiiiiiiiiiiiiiKK", kwlist,
440 &attr.type, &attr.config, &attr.sample_freq,
441 &sample_period, &attr.sample_type,
442 &attr.read_format, &disabled, &inherit,
443 &pinned, &exclusive, &exclude_user,
444 &exclude_kernel, &exclude_hv, &exclude_idle,
445 &mmap, &comm, &freq, &inherit_stat,
446 &enable_on_exec, &task, &watermark,
447 &precise_ip, &mmap_data, &sample_id_all,
448 &attr.wakeup_events, &attr.bp_type,
449 &attr.bp_addr, &attr.bp_len, &idx))
450 return -1;
451
452 /* union... */
453 if (sample_period != 0) {
454 if (attr.sample_freq != 0)
455 return -1; /* FIXME: throw right exception */
456 attr.sample_period = sample_period;
457 }
458
459 /* Bitfields */
460 attr.disabled = disabled;
461 attr.inherit = inherit;
462 attr.pinned = pinned;
463 attr.exclusive = exclusive;
464 attr.exclude_user = exclude_user;
465 attr.exclude_kernel = exclude_kernel;
466 attr.exclude_hv = exclude_hv;
467 attr.exclude_idle = exclude_idle;
468 attr.mmap = mmap;
469 attr.comm = comm;
470 attr.freq = freq;
471 attr.inherit_stat = inherit_stat;
472 attr.enable_on_exec = enable_on_exec;
473 attr.task = task;
474 attr.watermark = watermark;
475 attr.precise_ip = precise_ip;
476 attr.mmap_data = mmap_data;
477 attr.sample_id_all = sample_id_all;
478
479 perf_evsel__init(&pevsel->evsel, &attr, idx);
480 return 0;
481}
482
483static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
484{
485 perf_evsel__exit(&pevsel->evsel);
486 pevsel->ob_type->tp_free((PyObject*)pevsel);
487}
488
489static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
490 PyObject *args, PyObject *kwargs)
491{
492 struct perf_evsel *evsel = &pevsel->evsel;
493 struct cpu_map *cpus = NULL;
494 struct thread_map *threads = NULL;
495 PyObject *pcpus = NULL, *pthreads = NULL;
496 int group = 0, overwrite = 0;
497 static char *kwlist[] = {"cpus", "threads", "group", "overwrite", NULL, NULL};
498
499 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
500 &pcpus, &pthreads, &group, &overwrite))
501 return NULL;
502
503 if (pthreads != NULL)
504 threads = ((struct pyrf_thread_map *)pthreads)->threads;
505
506 if (pcpus != NULL)
507 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
508
509 if (perf_evsel__open(evsel, cpus, threads, group, overwrite) < 0) {
510 PyErr_SetFromErrno(PyExc_OSError);
511 return NULL;
512 }
513
514 Py_INCREF(Py_None);
515 return Py_None;
516}
517
518static PyMethodDef pyrf_evsel__methods[] = {
519 {
520 .ml_name = "open",
521 .ml_meth = (PyCFunction)pyrf_evsel__open,
522 .ml_flags = METH_VARARGS | METH_KEYWORDS,
523 .ml_doc = PyDoc_STR("open the event selector file descriptor table.")
524 },
525 { NULL, }
526};
527
528static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
529
530static PyTypeObject pyrf_evsel__type = {
531 PyVarObject_HEAD_INIT(NULL, 0)
532 .tp_name = "perf.evsel",
533 .tp_basicsize = sizeof(struct pyrf_evsel),
534 .tp_dealloc = (destructor)pyrf_evsel__delete,
535 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
536 .tp_doc = pyrf_evsel__doc,
537 .tp_methods = pyrf_evsel__methods,
538 .tp_init = (initproc)pyrf_evsel__init,
539};
540
541static int pyrf_evsel__setup_types(void)
542{
543 pyrf_evsel__type.tp_new = PyType_GenericNew;
544 return PyType_Ready(&pyrf_evsel__type);
545}
546
547struct pyrf_evlist {
548 PyObject_HEAD
549
550 struct perf_evlist evlist;
551};
552
553static int pyrf_evlist__init(struct pyrf_evlist *pevlist,
554 PyObject *args, PyObject *kwargs)
555{
556 perf_evlist__init(&pevlist->evlist);
557 return 0;
558}
559
560static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
561{
562 perf_evlist__exit(&pevlist->evlist);
563 pevlist->ob_type->tp_free((PyObject*)pevlist);
564}
565
566static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
567 PyObject *args, PyObject *kwargs)
568{
569 struct perf_evlist *evlist = &pevlist->evlist;
570 PyObject *pcpus = NULL, *pthreads = NULL;
571 struct cpu_map *cpus = NULL;
572 struct thread_map *threads = NULL;
573 static char *kwlist[] = {"cpus", "threads", "pages", "overwrite",
574 NULL, NULL};
575 int pages = 128, overwrite = false;
576
577 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "OO|ii", kwlist,
578 &pcpus, &pthreads, &pages, &overwrite))
579 return NULL;
580
581 threads = ((struct pyrf_thread_map *)pthreads)->threads;
582 cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
583
584 if (perf_evlist__mmap(evlist, cpus, threads, pages, overwrite) < 0) {
585 PyErr_SetFromErrno(PyExc_OSError);
586 return NULL;
587 }
588
589 Py_INCREF(Py_None);
590 return Py_None;
591}
592
593static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
594 PyObject *args, PyObject *kwargs)
595{
596 struct perf_evlist *evlist = &pevlist->evlist;
597 static char *kwlist[] = {"timeout", NULL, NULL};
598 int timeout = -1, n;
599
600 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
601 return NULL;
602
603 n = poll(evlist->pollfd, evlist->nr_fds, timeout);
604 if (n < 0) {
605 PyErr_SetFromErrno(PyExc_OSError);
606 return NULL;
607 }
608
609 return Py_BuildValue("i", n);
610}
611
612static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,
613 PyObject *args, PyObject *kwargs)
614{
615 struct perf_evlist *evlist = &pevlist->evlist;
616 PyObject *list = PyList_New(0);
617 int i;
618
619 for (i = 0; i < evlist->nr_fds; ++i) {
620 PyObject *file;
621 FILE *fp = fdopen(evlist->pollfd[i].fd, "r");
622
623 if (fp == NULL)
624 goto free_list;
625
626 file = PyFile_FromFile(fp, "perf", "r", NULL);
627 if (file == NULL)
628 goto free_list;
629
630 if (PyList_Append(list, file) != 0) {
631 Py_DECREF(file);
632 goto free_list;
633 }
634
635 Py_DECREF(file);
636 }
637
638 return list;
639free_list:
640 return PyErr_NoMemory();
641}
642
643
644static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,
645 PyObject *args, PyObject *kwargs)
646{
647 struct perf_evlist *evlist = &pevlist->evlist;
648 PyObject *pevsel;
649 struct perf_evsel *evsel;
650
651 if (!PyArg_ParseTuple(args, "O", &pevsel))
652 return NULL;
653
654 Py_INCREF(pevsel);
655 evsel = &((struct pyrf_evsel *)pevsel)->evsel;
656 evsel->idx = evlist->nr_entries;
657 perf_evlist__add(evlist, evsel);
658
659 return Py_BuildValue("i", evlist->nr_entries);
660}
661
662static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
663 PyObject *args, PyObject *kwargs)
664{
665 struct perf_evlist *evlist = &pevlist->evlist;
666 union perf_event *event;
667 int sample_id_all = 1, cpu;
668 static char *kwlist[] = {"sample_id_all", NULL, NULL};
669
670 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
671 &cpu, &sample_id_all))
672 return NULL;
673
674 event = perf_evlist__read_on_cpu(evlist, cpu);
675 if (event != NULL) {
676 struct perf_evsel *first;
677 PyObject *pyevent = pyrf_event__new(event);
678 struct pyrf_event *pevent = (struct pyrf_event *)pyevent;
679
680 if (pyevent == NULL)
681 return PyErr_NoMemory();
682
683 first = list_entry(evlist->entries.next, struct perf_evsel, node);
684 perf_event__parse_sample(event, first->attr.sample_type, sample_id_all,
685 &pevent->sample);
686 return pyevent;
687 }
688
689 Py_INCREF(Py_None);
690 return Py_None;
691}
692
693static PyMethodDef pyrf_evlist__methods[] = {
694 {
695 .ml_name = "mmap",
696 .ml_meth = (PyCFunction)pyrf_evlist__mmap,
697 .ml_flags = METH_VARARGS | METH_KEYWORDS,
698 .ml_doc = PyDoc_STR("mmap the file descriptor table.")
699 },
700 {
701 .ml_name = "poll",
702 .ml_meth = (PyCFunction)pyrf_evlist__poll,
703 .ml_flags = METH_VARARGS | METH_KEYWORDS,
704 .ml_doc = PyDoc_STR("poll the file descriptor table.")
705 },
706 {
707 .ml_name = "get_pollfd",
708 .ml_meth = (PyCFunction)pyrf_evlist__get_pollfd,
709 .ml_flags = METH_VARARGS | METH_KEYWORDS,
710 .ml_doc = PyDoc_STR("get the poll file descriptor table.")
711 },
712 {
713 .ml_name = "add",
714 .ml_meth = (PyCFunction)pyrf_evlist__add,
715 .ml_flags = METH_VARARGS | METH_KEYWORDS,
716 .ml_doc = PyDoc_STR("adds an event selector to the list.")
717 },
718 {
719 .ml_name = "read_on_cpu",
720 .ml_meth = (PyCFunction)pyrf_evlist__read_on_cpu,
721 .ml_flags = METH_VARARGS | METH_KEYWORDS,
722 .ml_doc = PyDoc_STR("reads an event.")
723 },
724 { NULL, }
725};
726
727static Py_ssize_t pyrf_evlist__length(PyObject *obj)
728{
729 struct pyrf_evlist *pevlist = (void *)obj;
730
731 return pevlist->evlist.nr_entries;
732}
733
734static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
735{
736 struct pyrf_evlist *pevlist = (void *)obj;
737 struct perf_evsel *pos;
738
739 if (i >= pevlist->evlist.nr_entries)
740 return NULL;
741
742 list_for_each_entry(pos, &pevlist->evlist.entries, node)
743 if (i-- == 0)
744 break;
745
746 return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
747}
748
749static PySequenceMethods pyrf_evlist__sequence_methods = {
750 .sq_length = pyrf_evlist__length,
751 .sq_item = pyrf_evlist__item,
752};
753
754static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
755
756static PyTypeObject pyrf_evlist__type = {
757 PyVarObject_HEAD_INIT(NULL, 0)
758 .tp_name = "perf.evlist",
759 .tp_basicsize = sizeof(struct pyrf_evlist),
760 .tp_dealloc = (destructor)pyrf_evlist__delete,
761 .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
762 .tp_as_sequence = &pyrf_evlist__sequence_methods,
763 .tp_doc = pyrf_evlist__doc,
764 .tp_methods = pyrf_evlist__methods,
765 .tp_init = (initproc)pyrf_evlist__init,
766};
767
768static int pyrf_evlist__setup_types(void)
769{
770 pyrf_evlist__type.tp_new = PyType_GenericNew;
771 return PyType_Ready(&pyrf_evlist__type);
772}
773
774static struct {
775 const char *name;
776 int value;
777} perf__constants[] = {
778 { "TYPE_HARDWARE", PERF_TYPE_HARDWARE },
779 { "TYPE_SOFTWARE", PERF_TYPE_SOFTWARE },
780 { "TYPE_TRACEPOINT", PERF_TYPE_TRACEPOINT },
781 { "TYPE_HW_CACHE", PERF_TYPE_HW_CACHE },
782 { "TYPE_RAW", PERF_TYPE_RAW },
783 { "TYPE_BREAKPOINT", PERF_TYPE_BREAKPOINT },
784
785 { "COUNT_HW_CPU_CYCLES", PERF_COUNT_HW_CPU_CYCLES },
786 { "COUNT_HW_INSTRUCTIONS", PERF_COUNT_HW_INSTRUCTIONS },
787 { "COUNT_HW_CACHE_REFERENCES", PERF_COUNT_HW_CACHE_REFERENCES },
788 { "COUNT_HW_CACHE_MISSES", PERF_COUNT_HW_CACHE_MISSES },
789 { "COUNT_HW_BRANCH_INSTRUCTIONS", PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
790 { "COUNT_HW_BRANCH_MISSES", PERF_COUNT_HW_BRANCH_MISSES },
791 { "COUNT_HW_BUS_CYCLES", PERF_COUNT_HW_BUS_CYCLES },
792 { "COUNT_HW_CACHE_L1D", PERF_COUNT_HW_CACHE_L1D },
793 { "COUNT_HW_CACHE_L1I", PERF_COUNT_HW_CACHE_L1I },
794 { "COUNT_HW_CACHE_LL", PERF_COUNT_HW_CACHE_LL },
795 { "COUNT_HW_CACHE_DTLB", PERF_COUNT_HW_CACHE_DTLB },
796 { "COUNT_HW_CACHE_ITLB", PERF_COUNT_HW_CACHE_ITLB },
797 { "COUNT_HW_CACHE_BPU", PERF_COUNT_HW_CACHE_BPU },
798 { "COUNT_HW_CACHE_OP_READ", PERF_COUNT_HW_CACHE_OP_READ },
799 { "COUNT_HW_CACHE_OP_WRITE", PERF_COUNT_HW_CACHE_OP_WRITE },
800 { "COUNT_HW_CACHE_OP_PREFETCH", PERF_COUNT_HW_CACHE_OP_PREFETCH },
801 { "COUNT_HW_CACHE_RESULT_ACCESS", PERF_COUNT_HW_CACHE_RESULT_ACCESS },
802 { "COUNT_HW_CACHE_RESULT_MISS", PERF_COUNT_HW_CACHE_RESULT_MISS },
803
804 { "COUNT_SW_CPU_CLOCK", PERF_COUNT_SW_CPU_CLOCK },
805 { "COUNT_SW_TASK_CLOCK", PERF_COUNT_SW_TASK_CLOCK },
806 { "COUNT_SW_PAGE_FAULTS", PERF_COUNT_SW_PAGE_FAULTS },
807 { "COUNT_SW_CONTEXT_SWITCHES", PERF_COUNT_SW_CONTEXT_SWITCHES },
808 { "COUNT_SW_CPU_MIGRATIONS", PERF_COUNT_SW_CPU_MIGRATIONS },
809 { "COUNT_SW_PAGE_FAULTS_MIN", PERF_COUNT_SW_PAGE_FAULTS_MIN },
810 { "COUNT_SW_PAGE_FAULTS_MAJ", PERF_COUNT_SW_PAGE_FAULTS_MAJ },
811 { "COUNT_SW_ALIGNMENT_FAULTS", PERF_COUNT_SW_ALIGNMENT_FAULTS },
812 { "COUNT_SW_EMULATION_FAULTS", PERF_COUNT_SW_EMULATION_FAULTS },
813
814 { "SAMPLE_IP", PERF_SAMPLE_IP },
815 { "SAMPLE_TID", PERF_SAMPLE_TID },
816 { "SAMPLE_TIME", PERF_SAMPLE_TIME },
817 { "SAMPLE_ADDR", PERF_SAMPLE_ADDR },
818 { "SAMPLE_READ", PERF_SAMPLE_READ },
819 { "SAMPLE_CALLCHAIN", PERF_SAMPLE_CALLCHAIN },
820 { "SAMPLE_ID", PERF_SAMPLE_ID },
821 { "SAMPLE_CPU", PERF_SAMPLE_CPU },
822 { "SAMPLE_PERIOD", PERF_SAMPLE_PERIOD },
823 { "SAMPLE_STREAM_ID", PERF_SAMPLE_STREAM_ID },
824 { "SAMPLE_RAW", PERF_SAMPLE_RAW },
825
826 { "FORMAT_TOTAL_TIME_ENABLED", PERF_FORMAT_TOTAL_TIME_ENABLED },
827 { "FORMAT_TOTAL_TIME_RUNNING", PERF_FORMAT_TOTAL_TIME_RUNNING },
828 { "FORMAT_ID", PERF_FORMAT_ID },
829 { "FORMAT_GROUP", PERF_FORMAT_GROUP },
830
831 { "RECORD_MMAP", PERF_RECORD_MMAP },
832 { "RECORD_LOST", PERF_RECORD_LOST },
833 { "RECORD_COMM", PERF_RECORD_COMM },
834 { "RECORD_EXIT", PERF_RECORD_EXIT },
835 { "RECORD_THROTTLE", PERF_RECORD_THROTTLE },
836 { "RECORD_UNTHROTTLE", PERF_RECORD_UNTHROTTLE },
837 { "RECORD_FORK", PERF_RECORD_FORK },
838 { "RECORD_READ", PERF_RECORD_READ },
839 { "RECORD_SAMPLE", PERF_RECORD_SAMPLE },
840 { NULL, },
841};
842
843static PyMethodDef perf__methods[] = {
844 { NULL, NULL }
845};
846
847PyMODINIT_FUNC initperf(void)
848{
849 PyObject *obj;
850 int i;
851 PyObject *dict, *module = Py_InitModule("perf", perf__methods);
852
853 if (module == NULL ||
854 pyrf_event__setup_types() < 0 ||
855 pyrf_evlist__setup_types() < 0 ||
856 pyrf_evsel__setup_types() < 0 ||
857 pyrf_thread_map__setup_types() < 0 ||
858 pyrf_cpu_map__setup_types() < 0)
859 return;
860
861 Py_INCREF(&pyrf_evlist__type);
862 PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
863
864 Py_INCREF(&pyrf_evsel__type);
865 PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);
866
867 Py_INCREF(&pyrf_thread_map__type);
868 PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
869
870 Py_INCREF(&pyrf_cpu_map__type);
871 PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
872
873 dict = PyModule_GetDict(module);
874 if (dict == NULL)
875 goto error;
876
877 for (i = 0; perf__constants[i].name != NULL; i++) {
878 obj = PyInt_FromLong(perf__constants[i].value);
879 if (obj == NULL)
880 goto error;
881 PyDict_SetItemString(dict, perf__constants[i].name, obj);
882 Py_DECREF(obj);
883 }
884
885error:
886 if (PyErr_Occurred())
887 PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
888}
diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
new file mode 100644
index 000000000000..496d7f432fb8
--- /dev/null
+++ b/tools/perf/util/setup.py
@@ -0,0 +1,18 @@
1#!/usr/bin/python2
2
3from distutils.core import setup, Extension
4
5perf = Extension('perf',
6 sources = ['util/python.c', 'util/ctype.c', 'util/evlist.c',
7 'util/evsel.c', 'util/cpumap.c', 'util/thread_map.c',
8 'util/util.c', 'util/xyarray.c'],
9 include_dirs = ['util/include'])
10
11setup(name='perf',
12 version='0.1',
13 description='Interface with the Linux profiling infrastructure',
14 author='Arnaldo Carvalho de Melo',
15 author_email='acme@redhat.com',
16 license='GPLv2',
17 url='http://perf.wiki.kernel.org',
18 ext_modules=[perf])
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-25 01:42:54 -0400