1 # SPDX-License-Identifier: GPL-2.0
3 from __future__ import print_function
19 import ConfigParser as configparser
22 # Allow multiple values in assignment separated by '|'
28 if (a_item == b_item):
30 elif (a_item == '*') or (b_item == '*'):
35 class Fail(Exception):
36 def __init__(self, test, msg):
40 return '\'%s\' - %s' % (self.test.path, self.msg)
42 class Notest(Exception):
43 def __init__(self, test, arch):
47 return '[%s] \'%s\'' % (self.arch, self.test.path)
49 class Unsup(Exception):
50 def __init__(self, test):
53 return '\'%s\'' % self.test.path
85 'exclude_callchain_kernel',
86 'exclude_callchain_user',
98 log.debug(" %s = %s" % (key, val))
101 def __init__(self, name, data, base):
102 log.debug(" Event %s" % name);
108 def equal(self, other):
109 for t in Event.terms:
110 log.debug(" [%s] %s %s" % (t, self[t], other[t]));
111 if t not in self or t not in other:
113 if not data_equal(self[t], other[t]):
118 if 'optional' in self and self['optional'] == '1':
122 def diff(self, other):
123 for t in Event.terms:
124 if t not in self or t not in other:
126 if not data_equal(self[t], other[t]):
127 log.warning("expected %s=%s, got %s" % (t, self[t], other[t]))
129 def parse_version(version):
132 return [int(v) for v in version.split(".")[0:2]]
134 # Test file description needs to have following sections:
136 # - just single instance in file
137 # - needs to specify:
138 # 'command' - perf command name
139 # 'args' - special command arguments
140 # 'ret' - Skip test if Perf doesn't exit with this value (0 by default)
141 # 'test_ret'- If set to 'true', fail test instead of skipping for 'ret' argument
142 # 'arch' - architecture specific test (optional)
143 # comma separated list, ! at the beginning
145 # 'auxv' - Truthy statement that is evaled in the scope of the auxv map. When false,
146 # the test is skipped. For example 'auxv["AT_HWCAP"] == 10'. (optional)
147 # 'kernel_since' - Inclusive kernel version from which the test will start running. Only the
148 # first two values are supported, for example "6.1" (optional)
149 # 'kernel_until' - Exclusive kernel version from which the test will stop running. (optional)
151 # - one or multiple instances in file
152 # - expected values assignments
154 def __init__(self, path, options):
155 parser = configparser.ConfigParser()
158 log.warning("running '%s'" % path)
161 self.test_dir = options.test_dir
162 self.perf = options.perf
163 self.command = parser.get('config', 'command')
164 self.args = parser.get('config', 'args')
167 self.ret = parser.get('config', 'ret')
171 self.test_ret = parser.getboolean('config', 'test_ret', fallback=False)
174 self.arch = parser.get('config', 'arch')
175 log.warning("test limitation '%s'" % self.arch)
179 self.auxv = parser.get('config', 'auxv', fallback=None)
180 self.kernel_since = parse_version(parser.get('config', 'kernel_since', fallback=None))
181 self.kernel_until = parse_version(parser.get('config', 'kernel_until', fallback=None))
184 log.debug(" loading expected events");
185 self.load_events(path, self.expect)
187 def is_event(self, name):
188 if name.find("event") == -1:
193 def skip_test_kernel_since(self):
194 if not self.kernel_since:
196 return not self.kernel_since <= parse_version(platform.release())
198 def skip_test_kernel_until(self):
199 if not self.kernel_until:
201 return not parse_version(platform.release()) < self.kernel_until
203 def skip_test_auxv(self):
204 def new_auxv(a, pattern):
205 items = list(filter(None, pattern.split(a)))
206 # AT_HWCAP is hex but doesn't have a prefix, so special case it
207 if items[0] == "AT_HWCAP":
208 value = int(items[-1], 16)
211 value = int(items[-1], 0)
214 return (items[0], value)
218 auxv = subprocess.check_output("LD_SHOW_AUXV=1 sleep 0", shell=True) \
219 .decode(sys.stdout.encoding)
220 pattern = re.compile(r"[: ]+")
221 auxv = dict([new_auxv(a, pattern) for a in auxv.splitlines()])
222 return not eval(self.auxv)
224 def skip_test_arch(self, myarch):
225 # If architecture not set always run test
227 # log.warning("test for arch %s is ok" % myarch)
230 # Allow multiple values in assignment separated by ','
231 arch_list = self.arch.split(',')
233 # Handle negated list such as !s390x,ppc
234 if arch_list[0][0] == '!':
235 arch_list[0] = arch_list[0][1:]
236 log.warning("excluded architecture list %s" % arch_list)
237 for arch_item in arch_list:
238 # log.warning("test for %s arch is %s" % (arch_item, myarch))
239 if arch_item == myarch:
243 for arch_item in arch_list:
244 # log.warning("test for architecture '%s' current '%s'" % (arch_item, myarch))
245 if arch_item == myarch:
249 def load_events(self, path, events):
250 parser_event = configparser.ConfigParser()
251 parser_event.read(path)
253 # The event record section header contains 'event' word,
254 # optionaly followed by ':' allowing to load 'parent
255 # event' first as a base
256 for section in filter(self.is_event, parser_event.sections()):
258 parser_items = parser_event.items(section);
261 # Read parent event if there's any
263 base = section[section.index(':') + 1:]
264 parser_base = configparser.ConfigParser()
265 parser_base.read(self.test_dir + '/' + base)
266 base_items = parser_base.items('event')
268 e = Event(section, parser_items, base_items)
271 def run_cmd(self, tempdir):
272 junk1, junk2, junk3, junk4, myarch = (os.uname())
274 if self.skip_test_arch(myarch):
275 raise Notest(self, myarch)
277 if self.skip_test_auxv():
278 raise Notest(self, "auxv skip")
280 if self.skip_test_kernel_since():
281 raise Notest(self, "old kernel skip")
283 if self.skip_test_kernel_until():
284 raise Notest(self, "new kernel skip")
286 cmd = "PERF_TEST_ATTR=%s %s %s -o %s/perf.data %s" % (tempdir,
287 self.perf, self.command, tempdir, self.args)
288 ret = os.WEXITSTATUS(os.system(cmd))
290 log.info(" '%s' ret '%s', expected '%s'" % (cmd, str(ret), str(self.ret)))
292 if not data_equal(str(ret), str(self.ret)):
294 raise Fail(self, "Perf exit code failure")
298 def compare(self, expect, result):
301 log.debug(" compare");
303 # For each expected event find all matching
304 # events in result. Fail if there's not any.
305 for exp_name, exp_event in expect.items():
308 log.debug(" matching [%s]" % exp_name)
309 for res_name, res_event in result.items():
310 log.debug(" to [%s]" % res_name)
311 if (exp_event.equal(res_event)):
312 exp_list.append(res_name)
315 log.debug(" ->FAIL");
317 log.debug(" match: [%s] matches %s" % (exp_name, str(exp_list)))
319 # we did not any matching event - fail
321 if exp_event.optional():
322 log.debug(" %s does not match, but is optional" % exp_name)
325 log.debug(" res_event is empty");
327 exp_event.diff(res_event)
328 raise Fail(self, 'match failure');
330 match[exp_name] = exp_list
332 # For each defined group in the expected events
333 # check we match the same group in the result.
334 for exp_name, exp_event in expect.items():
335 group = exp_event.group
340 for res_name in match[exp_name]:
341 res_group = result[res_name].group
342 if res_group not in match[group]:
343 raise Fail(self, 'group failure')
345 log.debug(" group: [%s] matches group leader %s" %
346 (exp_name, str(match[group])))
348 log.debug(" matched")
350 def resolve_groups(self, events):
351 for name, event in events.items():
352 group_fd = event['group_fd'];
356 for iname, ievent in events.items():
357 if (ievent['fd'] == group_fd):
359 log.debug('[%s] has group leader [%s]' % (name, iname))
363 tempdir = tempfile.mkdtemp();
366 # run the test script
367 self.run_cmd(tempdir);
369 # load events expectation for the test
370 log.debug(" loading result events");
371 for f in glob.glob(tempdir + '/event*'):
372 self.load_events(f, self.result);
374 # resolve group_fd to event names
375 self.resolve_groups(self.expect);
376 self.resolve_groups(self.result);
378 # do the expectation - results matching - both ways
379 self.compare(self.expect, self.result)
380 self.compare(self.result, self.expect)
384 shutil.rmtree(tempdir)
387 def run_tests(options):
388 for f in glob.glob(options.test_dir + '/' + options.test):
390 Test(f, options).run()
392 log.warning("unsupp %s" % obj.getMsg())
393 except Notest as obj:
394 log.warning("skipped %s" % obj.getMsg())
396 def setup_log(verbose):
398 level = logging.CRITICAL
401 level = logging.WARNING
405 level = logging.DEBUG
407 log = logging.getLogger('test')
409 ch = logging.StreamHandler()
411 formatter = logging.Formatter('%(message)s')
412 ch.setFormatter(formatter)
415 USAGE = '''%s [OPTIONS]
417 -p path # perf binary
418 -t test # single test
423 parser = optparse.OptionParser(usage=USAGE)
425 parser.add_option("-t", "--test",
426 action="store", type="string", dest="test")
427 parser.add_option("-d", "--test-dir",
428 action="store", type="string", dest="test_dir")
429 parser.add_option("-p", "--perf",
430 action="store", type="string", dest="perf")
431 parser.add_option("-v", "--verbose",
432 default=0, action="count", dest="verbose")
434 options, args = parser.parse_args()
436 parser.error('FAILED wrong arguments %s' % ' '.join(args))
439 setup_log(options.verbose)
441 if not options.test_dir:
442 print('FAILED no -d option specified')
446 options.test = 'test*'
452 print("FAILED %s" % obj.getMsg())
457 if __name__ == '__main__':