1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <gtest/gtest.h>
18
19 #include <stdio.h>
20 #include <stdlib.h>
21 #include <unistd.h>
22
23 #include <android-base/file.h>
24 #include <android-base/logging.h>
25 #include <android-base/stringprintf.h>
26 #include <android-base/strings.h>
27
28 #include <map>
29 #include <memory>
30 #include <regex>
31 #include <thread>
32
33 #include "command.h"
34 #include "environment.h"
35 #include "ETMRecorder.h"
36 #include "event_selection_set.h"
37 #include "get_test_data.h"
38 #include "record.h"
39 #include "record_file.h"
40 #include "test_util.h"
41 #include "thread_tree.h"
42
43 using namespace simpleperf;
44 using namespace PerfFileFormat;
45
RecordCmd()46 static std::unique_ptr<Command> RecordCmd() {
47 return CreateCommandInstance("record");
48 }
49
RunRecordCmd(std::vector<std::string> v,const char * output_file=nullptr)50 static bool RunRecordCmd(std::vector<std::string> v,
51 const char* output_file = nullptr) {
52 std::unique_ptr<TemporaryFile> tmpfile;
53 std::string out_file;
54 if (output_file != nullptr) {
55 out_file = output_file;
56 } else {
57 tmpfile.reset(new TemporaryFile);
58 out_file = tmpfile->path;
59 }
60 v.insert(v.end(), {"-o", out_file, "sleep", SLEEP_SEC});
61 return RecordCmd()->Run(v);
62 }
63
TEST(record_cmd,no_options)64 TEST(record_cmd, no_options) {
65 TEST_REQUIRE_HW_COUNTER();
66 ASSERT_TRUE(RunRecordCmd({}));
67 }
68
TEST(record_cmd,system_wide_option)69 TEST(record_cmd, system_wide_option) {
70 TEST_REQUIRE_HW_COUNTER();
71 TEST_IN_ROOT(ASSERT_TRUE(RunRecordCmd({"-a"})));
72 }
73
CheckEventType(const std::string & record_file,const std::string event_type,uint64_t sample_period,uint64_t sample_freq)74 void CheckEventType(const std::string& record_file, const std::string event_type,
75 uint64_t sample_period, uint64_t sample_freq) {
76 const EventType* type = FindEventTypeByName(event_type);
77 ASSERT_TRUE(type != nullptr);
78 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(record_file);
79 ASSERT_TRUE(reader);
80 std::vector<EventAttrWithId> attrs = reader->AttrSection();
81 for (auto& attr : attrs) {
82 if (attr.attr->type == type->type && attr.attr->config == type->config) {
83 if (attr.attr->freq == 0) {
84 ASSERT_EQ(sample_period, attr.attr->sample_period);
85 ASSERT_EQ(sample_freq, 0u);
86 } else {
87 ASSERT_EQ(sample_period, 0u);
88 ASSERT_EQ(sample_freq, attr.attr->sample_freq);
89 }
90 return;
91 }
92 }
93 FAIL();
94 }
95
TEST(record_cmd,sample_period_option)96 TEST(record_cmd, sample_period_option) {
97 TEST_REQUIRE_HW_COUNTER();
98 TemporaryFile tmpfile;
99 ASSERT_TRUE(RunRecordCmd({"-c", "100000"}, tmpfile.path));
100 CheckEventType(tmpfile.path, "cpu-cycles", 100000u, 0);
101 }
102
TEST(record_cmd,event_option)103 TEST(record_cmd, event_option) {
104 ASSERT_TRUE(RunRecordCmd({"-e", "cpu-clock"}));
105 }
106
TEST(record_cmd,freq_option)107 TEST(record_cmd, freq_option) {
108 TEST_REQUIRE_HW_COUNTER();
109 TemporaryFile tmpfile;
110 ASSERT_TRUE(RunRecordCmd({"-f", "99"}, tmpfile.path));
111 CheckEventType(tmpfile.path, "cpu-cycles", 0, 99u);
112 ASSERT_TRUE(RunRecordCmd({"-e", "cpu-clock", "-f", "99"}, tmpfile.path));
113 CheckEventType(tmpfile.path, "cpu-clock", 0, 99u);
114 ASSERT_FALSE(RunRecordCmd({"-f", std::to_string(UINT_MAX)}));
115 }
116
TEST(record_cmd,multiple_freq_or_sample_period_option)117 TEST(record_cmd, multiple_freq_or_sample_period_option) {
118 TEST_REQUIRE_HW_COUNTER();
119 TemporaryFile tmpfile;
120 ASSERT_TRUE(RunRecordCmd({"-f", "99", "-e", "cpu-cycles", "-c", "1000000", "-e",
121 "cpu-clock"}, tmpfile.path));
122 CheckEventType(tmpfile.path, "cpu-cycles", 0, 99u);
123 CheckEventType(tmpfile.path, "cpu-clock", 1000000u, 0u);
124 }
125
TEST(record_cmd,output_file_option)126 TEST(record_cmd, output_file_option) {
127 TEST_REQUIRE_HW_COUNTER();
128 TemporaryFile tmpfile;
129 ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "sleep", SLEEP_SEC}));
130 }
131
TEST(record_cmd,dump_kernel_mmap)132 TEST(record_cmd, dump_kernel_mmap) {
133 TEST_REQUIRE_HW_COUNTER();
134 TemporaryFile tmpfile;
135 ASSERT_TRUE(RunRecordCmd({}, tmpfile.path));
136 std::unique_ptr<RecordFileReader> reader =
137 RecordFileReader::CreateInstance(tmpfile.path);
138 ASSERT_TRUE(reader != nullptr);
139 std::vector<std::unique_ptr<Record>> records = reader->DataSection();
140 ASSERT_GT(records.size(), 0U);
141 bool have_kernel_mmap = false;
142 for (auto& record : records) {
143 if (record->type() == PERF_RECORD_MMAP) {
144 const MmapRecord* mmap_record =
145 static_cast<const MmapRecord*>(record.get());
146 if (strcmp(mmap_record->filename, DEFAULT_KERNEL_MMAP_NAME) == 0 ||
147 strcmp(mmap_record->filename, DEFAULT_KERNEL_MMAP_NAME_PERF) == 0) {
148 have_kernel_mmap = true;
149 break;
150 }
151 }
152 }
153 ASSERT_TRUE(have_kernel_mmap);
154 }
155
TEST(record_cmd,dump_build_id_feature)156 TEST(record_cmd, dump_build_id_feature) {
157 TEST_REQUIRE_HW_COUNTER();
158 TemporaryFile tmpfile;
159 ASSERT_TRUE(RunRecordCmd({}, tmpfile.path));
160 std::unique_ptr<RecordFileReader> reader =
161 RecordFileReader::CreateInstance(tmpfile.path);
162 ASSERT_TRUE(reader != nullptr);
163 const FileHeader& file_header = reader->FileHeader();
164 ASSERT_TRUE(file_header.features[FEAT_BUILD_ID / 8] &
165 (1 << (FEAT_BUILD_ID % 8)));
166 ASSERT_GT(reader->FeatureSectionDescriptors().size(), 0u);
167 }
168
TEST(record_cmd,tracepoint_event)169 TEST(record_cmd, tracepoint_event) {
170 TEST_IN_ROOT(ASSERT_TRUE(RunRecordCmd({"-a", "-e", "sched:sched_switch"})));
171 }
172
TEST(record_cmd,rN_event)173 TEST(record_cmd, rN_event) {
174 TEST_REQUIRE_HW_COUNTER();
175 OMIT_TEST_ON_NON_NATIVE_ABIS();
176 size_t event_number;
177 if (GetBuildArch() == ARCH_ARM64 || GetBuildArch() == ARCH_ARM) {
178 // As in D5.10.2 of the ARMv8 manual, ARM defines the event number space for PMU. part of the
179 // space is for common event numbers (which will stay the same for all ARM chips), part of the
180 // space is for implementation defined events. Here 0x08 is a common event for instructions.
181 event_number = 0x08;
182 } else if (GetBuildArch() == ARCH_X86_32 || GetBuildArch() == ARCH_X86_64) {
183 // As in volume 3 chapter 19 of the Intel manual, 0x00c0 is the event number for instruction.
184 event_number = 0x00c0;
185 } else {
186 GTEST_LOG_(INFO) << "Omit arch " << GetBuildArch();
187 return;
188 }
189 std::string event_name = android::base::StringPrintf("r%zx", event_number);
190 TemporaryFile tmpfile;
191 ASSERT_TRUE(RunRecordCmd({"-e", event_name}, tmpfile.path));
192 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
193 ASSERT_TRUE(reader);
194 std::vector<EventAttrWithId> attrs = reader->AttrSection();
195 ASSERT_EQ(1u, attrs.size());
196 ASSERT_EQ(PERF_TYPE_RAW, attrs[0].attr->type);
197 ASSERT_EQ(event_number, attrs[0].attr->config);
198 }
199
TEST(record_cmd,branch_sampling)200 TEST(record_cmd, branch_sampling) {
201 TEST_REQUIRE_HW_COUNTER();
202 if (IsBranchSamplingSupported()) {
203 ASSERT_TRUE(RunRecordCmd({"-b"}));
204 ASSERT_TRUE(RunRecordCmd({"-j", "any,any_call,any_ret,ind_call"}));
205 ASSERT_TRUE(RunRecordCmd({"-j", "any,k"}));
206 ASSERT_TRUE(RunRecordCmd({"-j", "any,u"}));
207 ASSERT_FALSE(RunRecordCmd({"-j", "u"}));
208 } else {
209 GTEST_LOG_(INFO) << "This test does nothing as branch stack sampling is "
210 "not supported on this device.";
211 }
212 }
213
TEST(record_cmd,event_modifier)214 TEST(record_cmd, event_modifier) {
215 TEST_REQUIRE_HW_COUNTER();
216 ASSERT_TRUE(RunRecordCmd({"-e", "cpu-cycles:u"}));
217 }
218
TEST(record_cmd,fp_callchain_sampling)219 TEST(record_cmd, fp_callchain_sampling) {
220 TEST_REQUIRE_HW_COUNTER();
221 ASSERT_TRUE(RunRecordCmd({"--call-graph", "fp"}));
222 }
223
TEST(record_cmd,fp_callchain_sampling_warning_on_arm)224 TEST(record_cmd, fp_callchain_sampling_warning_on_arm) {
225 TEST_REQUIRE_HW_COUNTER();
226 if (GetBuildArch() != ARCH_ARM) {
227 GTEST_LOG_(INFO) << "This test does nothing as it only tests on arm arch.";
228 return;
229 }
230 ASSERT_EXIT(
231 {
232 exit(RunRecordCmd({"--call-graph", "fp"}) ? 0 : 1);
233 },
234 testing::ExitedWithCode(0), "doesn't work well on arm");
235 }
236
TEST(record_cmd,system_wide_fp_callchain_sampling)237 TEST(record_cmd, system_wide_fp_callchain_sampling) {
238 TEST_REQUIRE_HW_COUNTER();
239 TEST_IN_ROOT(ASSERT_TRUE(RunRecordCmd({"-a", "--call-graph", "fp"})));
240 }
241
IsInNativeAbi()242 bool IsInNativeAbi() {
243 static int in_native_abi = -1;
244 if (in_native_abi == -1) {
245 FILE* fp = popen("uname -m", "re");
246 char buf[40];
247 memset(buf, '\0', sizeof(buf));
248 CHECK_EQ(fgets(buf, sizeof(buf), fp), buf);
249 pclose(fp);
250 std::string s = buf;
251 in_native_abi = 1;
252 if (GetBuildArch() == ARCH_X86_32 || GetBuildArch() == ARCH_X86_64) {
253 if (s.find("86") == std::string::npos) {
254 in_native_abi = 0;
255 }
256 } else if (GetBuildArch() == ARCH_ARM || GetBuildArch() == ARCH_ARM64) {
257 if (s.find("arm") == std::string::npos && s.find("aarch64") == std::string::npos) {
258 in_native_abi = 0;
259 }
260 }
261 }
262 return in_native_abi == 1;
263 }
264
HasHardwareCounter()265 bool HasHardwareCounter() {
266 static int has_hw_counter = -1;
267 if (has_hw_counter == -1) {
268 has_hw_counter = 1;
269 #if defined(__arm__)
270 std::string cpu_info;
271 if (android::base::ReadFileToString("/proc/cpuinfo", &cpu_info)) {
272 std::string hardware = GetHardwareFromCpuInfo(cpu_info);
273 if (std::regex_search(hardware, std::regex(R"(i\.MX6.*Quad)")) ||
274 std::regex_search(hardware, std::regex(R"(SC7731e)")) ) {
275 has_hw_counter = 0;
276 }
277 }
278 #endif
279 }
280 return has_hw_counter == 1;
281 }
282
TEST(record_cmd,dwarf_callchain_sampling)283 TEST(record_cmd, dwarf_callchain_sampling) {
284 TEST_REQUIRE_HW_COUNTER();
285 OMIT_TEST_ON_NON_NATIVE_ABIS();
286 ASSERT_TRUE(IsDwarfCallChainSamplingSupported());
287 std::vector<std::unique_ptr<Workload>> workloads;
288 CreateProcesses(1, &workloads);
289 std::string pid = std::to_string(workloads[0]->GetPid());
290 ASSERT_TRUE(RunRecordCmd({"-p", pid, "--call-graph", "dwarf"}));
291 ASSERT_TRUE(RunRecordCmd({"-p", pid, "--call-graph", "dwarf,16384"}));
292 ASSERT_FALSE(RunRecordCmd({"-p", pid, "--call-graph", "dwarf,65536"}));
293 ASSERT_TRUE(RunRecordCmd({"-p", pid, "-g"}));
294 }
295
TEST(record_cmd,system_wide_dwarf_callchain_sampling)296 TEST(record_cmd, system_wide_dwarf_callchain_sampling) {
297 TEST_REQUIRE_HW_COUNTER();
298 OMIT_TEST_ON_NON_NATIVE_ABIS();
299 ASSERT_TRUE(IsDwarfCallChainSamplingSupported());
300 TEST_IN_ROOT(RunRecordCmd({"-a", "--call-graph", "dwarf"}));
301 }
302
TEST(record_cmd,no_unwind_option)303 TEST(record_cmd, no_unwind_option) {
304 TEST_REQUIRE_HW_COUNTER();
305 OMIT_TEST_ON_NON_NATIVE_ABIS();
306 ASSERT_TRUE(IsDwarfCallChainSamplingSupported());
307 ASSERT_TRUE(RunRecordCmd({"--call-graph", "dwarf", "--no-unwind"}));
308 ASSERT_FALSE(RunRecordCmd({"--no-unwind"}));
309 }
310
TEST(record_cmd,post_unwind_option)311 TEST(record_cmd, post_unwind_option) {
312 TEST_REQUIRE_HW_COUNTER();
313 OMIT_TEST_ON_NON_NATIVE_ABIS();
314 ASSERT_TRUE(IsDwarfCallChainSamplingSupported());
315 std::vector<std::unique_ptr<Workload>> workloads;
316 CreateProcesses(1, &workloads);
317 std::string pid = std::to_string(workloads[0]->GetPid());
318 ASSERT_TRUE(RunRecordCmd({"-p", pid, "--call-graph", "dwarf", "--post-unwind"}));
319 ASSERT_TRUE(RunRecordCmd({"-p", pid, "--call-graph", "dwarf", "--post-unwind=yes"}));
320 ASSERT_TRUE(RunRecordCmd({"-p", pid, "--call-graph", "dwarf", "--post-unwind=no"}));
321 }
322
TEST(record_cmd,existing_processes)323 TEST(record_cmd, existing_processes) {
324 TEST_REQUIRE_HW_COUNTER();
325 std::vector<std::unique_ptr<Workload>> workloads;
326 CreateProcesses(2, &workloads);
327 std::string pid_list = android::base::StringPrintf(
328 "%d,%d", workloads[0]->GetPid(), workloads[1]->GetPid());
329 ASSERT_TRUE(RunRecordCmd({"-p", pid_list}));
330 }
331
TEST(record_cmd,existing_threads)332 TEST(record_cmd, existing_threads) {
333 TEST_REQUIRE_HW_COUNTER();
334 std::vector<std::unique_ptr<Workload>> workloads;
335 CreateProcesses(2, &workloads);
336 // Process id can also be used as thread id in linux.
337 std::string tid_list = android::base::StringPrintf(
338 "%d,%d", workloads[0]->GetPid(), workloads[1]->GetPid());
339 ASSERT_TRUE(RunRecordCmd({"-t", tid_list}));
340 }
341
TEST(record_cmd,no_monitored_threads)342 TEST(record_cmd, no_monitored_threads) {
343 TEST_REQUIRE_HW_COUNTER();
344 TemporaryFile tmpfile;
345 ASSERT_FALSE(RecordCmd()->Run({"-o", tmpfile.path}));
346 ASSERT_FALSE(RecordCmd()->Run({"-o", tmpfile.path, ""}));
347 }
348
TEST(record_cmd,more_than_one_event_types)349 TEST(record_cmd, more_than_one_event_types) {
350 TEST_REQUIRE_HW_COUNTER();
351 ASSERT_TRUE(RunRecordCmd({"-e", "cpu-cycles,cpu-clock"}));
352 ASSERT_TRUE(RunRecordCmd({"-e", "cpu-cycles", "-e", "cpu-clock"}));
353 }
354
TEST(record_cmd,mmap_page_option)355 TEST(record_cmd, mmap_page_option) {
356 TEST_REQUIRE_HW_COUNTER();
357 ASSERT_TRUE(RunRecordCmd({"-m", "1"}));
358 ASSERT_FALSE(RunRecordCmd({"-m", "0"}));
359 ASSERT_FALSE(RunRecordCmd({"-m", "7"}));
360 }
361
CheckKernelSymbol(const std::string & path,bool need_kallsyms,bool * success)362 static void CheckKernelSymbol(const std::string& path, bool need_kallsyms,
363 bool* success) {
364 *success = false;
365 std::unique_ptr<RecordFileReader> reader =
366 RecordFileReader::CreateInstance(path);
367 ASSERT_TRUE(reader != nullptr);
368 std::vector<std::unique_ptr<Record>> records = reader->DataSection();
369 bool has_kernel_symbol_records = false;
370 for (const auto& record : records) {
371 if (record->type() == SIMPLE_PERF_RECORD_KERNEL_SYMBOL) {
372 has_kernel_symbol_records = true;
373 }
374 }
375 bool require_kallsyms = need_kallsyms && CheckKernelSymbolAddresses();
376 ASSERT_EQ(require_kallsyms, has_kernel_symbol_records);
377 *success = true;
378 }
379
TEST(record_cmd,kernel_symbol)380 TEST(record_cmd, kernel_symbol) {
381 TEST_REQUIRE_HW_COUNTER();
382 TemporaryFile tmpfile;
383 ASSERT_TRUE(RunRecordCmd({"--no-dump-symbols"}, tmpfile.path));
384 bool success;
385 CheckKernelSymbol(tmpfile.path, true, &success);
386 ASSERT_TRUE(success);
387 ASSERT_TRUE(RunRecordCmd({"--no-dump-symbols", "--no-dump-kernel-symbols"}, tmpfile.path));
388 CheckKernelSymbol(tmpfile.path, false, &success);
389 ASSERT_TRUE(success);
390 }
391
ProcessSymbolsInPerfDataFile(const std::string & perf_data_file,const std::function<bool (const Symbol &,uint32_t)> & callback)392 static void ProcessSymbolsInPerfDataFile(
393 const std::string& perf_data_file,
394 const std::function<bool(const Symbol&, uint32_t)>& callback) {
395 auto reader = RecordFileReader::CreateInstance(perf_data_file);
396 ASSERT_TRUE(reader);
397 std::string file_path;
398 uint32_t file_type;
399 uint64_t min_vaddr;
400 uint64_t file_offset_of_min_vaddr;
401 std::vector<Symbol> symbols;
402 std::vector<uint64_t> dex_file_offsets;
403 size_t read_pos = 0;
404 while (reader->ReadFileFeature(read_pos, &file_path, &file_type, &min_vaddr,
405 &file_offset_of_min_vaddr, &symbols, &dex_file_offsets)) {
406 for (const auto& symbol : symbols) {
407 if (callback(symbol, file_type)) {
408 return;
409 }
410 }
411 }
412 }
413
414 // Check if dumped symbols in perf.data matches our expectation.
CheckDumpedSymbols(const std::string & path,bool allow_dumped_symbols)415 static bool CheckDumpedSymbols(const std::string& path, bool allow_dumped_symbols) {
416 bool has_dumped_symbols = false;
417 auto callback = [&](const Symbol&, uint32_t) {
418 has_dumped_symbols = true;
419 return true;
420 };
421 ProcessSymbolsInPerfDataFile(path, callback);
422 // It is possible that there are no samples hitting functions having symbols.
423 // So "allow_dumped_symbols = true" doesn't guarantee "has_dumped_symbols = true".
424 if (!allow_dumped_symbols && has_dumped_symbols) {
425 return false;
426 }
427 return true;
428 }
429
TEST(record_cmd,no_dump_symbols)430 TEST(record_cmd, no_dump_symbols) {
431 TEST_REQUIRE_HW_COUNTER();
432 TemporaryFile tmpfile;
433 ASSERT_TRUE(RunRecordCmd({}, tmpfile.path));
434 ASSERT_TRUE(CheckDumpedSymbols(tmpfile.path, true));
435 ASSERT_TRUE(RunRecordCmd({"--no-dump-symbols", "--no-dump-kernel-symbols"}, tmpfile.path));
436 ASSERT_TRUE(CheckDumpedSymbols(tmpfile.path, false));
437 OMIT_TEST_ON_NON_NATIVE_ABIS();
438 ASSERT_TRUE(IsDwarfCallChainSamplingSupported());
439 std::vector<std::unique_ptr<Workload>> workloads;
440 CreateProcesses(1, &workloads);
441 std::string pid = std::to_string(workloads[0]->GetPid());
442 ASSERT_TRUE(RunRecordCmd({"-p", pid, "-g"}, tmpfile.path));
443 ASSERT_TRUE(CheckDumpedSymbols(tmpfile.path, true));
444 ASSERT_TRUE(RunRecordCmd({"-p", pid, "-g", "--no-dump-symbols", "--no-dump-kernel-symbols"},
445 tmpfile.path));
446 ASSERT_TRUE(CheckDumpedSymbols(tmpfile.path, false));
447 }
448
TEST(record_cmd,dump_kernel_symbols)449 TEST(record_cmd, dump_kernel_symbols) {
450 TEST_REQUIRE_HW_COUNTER();
451 if (!IsRoot()) {
452 GTEST_LOG_(INFO) << "Test requires root privilege";
453 return;
454 }
455 TemporaryFile tmpfile;
456 ASSERT_TRUE(RunRecordCmd({"-a", "-o", tmpfile.path, "sleep", "1"}));
457 bool has_kernel_symbols = false;
458 auto callback = [&](const Symbol&, uint32_t file_type) {
459 if (file_type == DSO_KERNEL) {
460 has_kernel_symbols = true;
461 }
462 return has_kernel_symbols;
463 };
464 ProcessSymbolsInPerfDataFile(tmpfile.path, callback);
465 ASSERT_TRUE(has_kernel_symbols);
466 }
467
TEST(record_cmd,group_option)468 TEST(record_cmd, group_option) {
469 TEST_REQUIRE_HW_COUNTER();
470 ASSERT_TRUE(RunRecordCmd({"--group", "cpu-cycles,cpu-clock", "-m", "16"}));
471 ASSERT_TRUE(RunRecordCmd({"--group", "cpu-cycles,cpu-clock", "--group",
472 "cpu-cycles:u,cpu-clock:u", "--group",
473 "cpu-cycles:k,cpu-clock:k", "-m", "16"}));
474 }
475
TEST(record_cmd,symfs_option)476 TEST(record_cmd, symfs_option) {
477 TEST_REQUIRE_HW_COUNTER();
478 ASSERT_TRUE(RunRecordCmd({"--symfs", "/"}));
479 }
480
TEST(record_cmd,duration_option)481 TEST(record_cmd, duration_option) {
482 TEST_REQUIRE_HW_COUNTER();
483 TemporaryFile tmpfile;
484 ASSERT_TRUE(RecordCmd()->Run({"--duration", "1.2", "-p",
485 std::to_string(getpid()), "-o", tmpfile.path, "--in-app"}));
486 ASSERT_TRUE(
487 RecordCmd()->Run({"--duration", "1", "-o", tmpfile.path, "sleep", "2"}));
488 }
489
TEST(record_cmd,support_modifier_for_clock_events)490 TEST(record_cmd, support_modifier_for_clock_events) {
491 for (const std::string& e : {"cpu-clock", "task-clock"}) {
492 for (const std::string& m : {"u", "k"}) {
493 ASSERT_TRUE(RunRecordCmd({"-e", e + ":" + m})) << "event " << e << ":"
494 << m;
495 }
496 }
497 }
498
TEST(record_cmd,handle_SIGHUP)499 TEST(record_cmd, handle_SIGHUP) {
500 TEST_REQUIRE_HW_COUNTER();
501 TemporaryFile tmpfile;
502 int pipefd[2];
503 ASSERT_EQ(0, pipe(pipefd));
504 int read_fd = pipefd[0];
505 int write_fd = pipefd[1];
506 char data[8] = {};
507 std::thread thread([&]() {
508 android::base::ReadFully(read_fd, data, 7);
509 kill(getpid(), SIGHUP);
510 });
511 ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "--start_profiling_fd",
512 std::to_string(write_fd), "sleep", "1000000"}));
513 thread.join();
514 close(write_fd);
515 close(read_fd);
516 ASSERT_STREQ(data, "STARTED");
517 }
518
TEST(record_cmd,stop_when_no_more_targets)519 TEST(record_cmd, stop_when_no_more_targets) {
520 TEST_REQUIRE_HW_COUNTER();
521 TemporaryFile tmpfile;
522 std::atomic<int> tid(0);
523 std::thread thread([&]() {
524 tid = gettid();
525 sleep(1);
526 });
527 thread.detach();
528 while (tid == 0);
529 ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "-t", std::to_string(tid), "--in-app"}));
530 }
531
TEST(record_cmd,donot_stop_when_having_targets)532 TEST(record_cmd, donot_stop_when_having_targets) {
533 TEST_REQUIRE_HW_COUNTER();
534 std::vector<std::unique_ptr<Workload>> workloads;
535 CreateProcesses(1, &workloads);
536 std::string pid = std::to_string(workloads[0]->GetPid());
537 uint64_t start_time_in_ns = GetSystemClock();
538 TemporaryFile tmpfile;
539 ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "-p", pid, "--duration", "3"}));
540 uint64_t end_time_in_ns = GetSystemClock();
541 ASSERT_GT(end_time_in_ns - start_time_in_ns, static_cast<uint64_t>(2e9));
542 }
543
TEST(record_cmd,start_profiling_fd_option)544 TEST(record_cmd, start_profiling_fd_option) {
545 TEST_REQUIRE_HW_COUNTER();
546 int pipefd[2];
547 ASSERT_EQ(0, pipe(pipefd));
548 int read_fd = pipefd[0];
549 int write_fd = pipefd[1];
550 ASSERT_EXIT(
551 {
552 close(read_fd);
553 exit(RunRecordCmd({"--start_profiling_fd", std::to_string(write_fd)}) ? 0 : 1);
554 },
555 testing::ExitedWithCode(0), "");
556 close(write_fd);
557 std::string s;
558 ASSERT_TRUE(android::base::ReadFdToString(read_fd, &s));
559 close(read_fd);
560 ASSERT_EQ("STARTED", s);
561 }
562
TEST(record_cmd,record_meta_info_feature)563 TEST(record_cmd, record_meta_info_feature) {
564 TEST_REQUIRE_HW_COUNTER();
565 TemporaryFile tmpfile;
566 ASSERT_TRUE(RunRecordCmd({}, tmpfile.path));
567 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
568 ASSERT_TRUE(reader);
569 auto& info_map = reader->GetMetaInfoFeature();
570 ASSERT_NE(info_map.find("simpleperf_version"), info_map.end());
571 ASSERT_NE(info_map.find("timestamp"), info_map.end());
572 #if defined(__ANDROID__)
573 ASSERT_NE(info_map.find("product_props"), info_map.end());
574 ASSERT_NE(info_map.find("android_version"), info_map.end());
575 #endif
576 }
577
578 // See http://b/63135835.
TEST(record_cmd,cpu_clock_for_a_long_time)579 TEST(record_cmd, cpu_clock_for_a_long_time) {
580 std::vector<std::unique_ptr<Workload>> workloads;
581 CreateProcesses(1, &workloads);
582 std::string pid = std::to_string(workloads[0]->GetPid());
583 TemporaryFile tmpfile;
584 ASSERT_TRUE(RecordCmd()->Run(
585 {"-e", "cpu-clock", "-o", tmpfile.path, "-p", pid, "--duration", "3"}));
586 }
587
TEST(record_cmd,dump_regs_for_tracepoint_events)588 TEST(record_cmd, dump_regs_for_tracepoint_events) {
589 TEST_REQUIRE_HW_COUNTER();
590 TEST_REQUIRE_HOST_ROOT();
591 OMIT_TEST_ON_NON_NATIVE_ABIS();
592 // Check if the kernel can dump registers for tracepoint events.
593 // If not, probably a kernel patch below is missing:
594 // "5b09a094f2 arm64: perf: Fix callchain parse error with kernel tracepoint events"
595 ASSERT_TRUE(IsDumpingRegsForTracepointEventsSupported());
596 }
597
TEST(record_cmd,trace_offcpu_option)598 TEST(record_cmd, trace_offcpu_option) {
599 TEST_REQUIRE_HW_COUNTER();
600 // On linux host, we need root privilege to read tracepoint events.
601 TEST_REQUIRE_HOST_ROOT();
602 OMIT_TEST_ON_NON_NATIVE_ABIS();
603 TemporaryFile tmpfile;
604 ASSERT_TRUE(RunRecordCmd({"--trace-offcpu", "-f", "1000"}, tmpfile.path));
605 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
606 ASSERT_TRUE(reader);
607 auto info_map = reader->GetMetaInfoFeature();
608 ASSERT_EQ(info_map["trace_offcpu"], "true");
609 CheckEventType(tmpfile.path, "sched:sched_switch", 1u, 0u);
610 }
611
TEST(record_cmd,exit_with_parent_option)612 TEST(record_cmd, exit_with_parent_option) {
613 TEST_REQUIRE_HW_COUNTER();
614 ASSERT_TRUE(RunRecordCmd({"--exit-with-parent"}));
615 }
616
TEST(record_cmd,clockid_option)617 TEST(record_cmd, clockid_option) {
618 TEST_REQUIRE_HW_COUNTER();
619 if (!IsSettingClockIdSupported()) {
620 ASSERT_FALSE(RunRecordCmd({"--clockid", "monotonic"}));
621 } else {
622 TemporaryFile tmpfile;
623 ASSERT_TRUE(RunRecordCmd({"--clockid", "monotonic"}, tmpfile.path));
624 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
625 ASSERT_TRUE(reader);
626 auto info_map = reader->GetMetaInfoFeature();
627 ASSERT_EQ(info_map["clockid"], "monotonic");
628 }
629 }
630
TEST(record_cmd,generate_samples_by_hw_counters)631 TEST(record_cmd, generate_samples_by_hw_counters) {
632 TEST_REQUIRE_HW_COUNTER();
633 std::vector<std::string> events = {"cpu-cycles", "instructions"};
634 for (auto& event : events) {
635 TemporaryFile tmpfile;
636 ASSERT_TRUE(RecordCmd()->Run({"-e", event, "-o", tmpfile.path, "sleep", "1"}));
637 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
638 ASSERT_TRUE(reader);
639 bool has_sample = false;
640 ASSERT_TRUE(reader->ReadDataSection([&](std::unique_ptr<Record> r) {
641 if (r->type() == PERF_RECORD_SAMPLE) {
642 has_sample = true;
643 }
644 return true;
645 }));
646 ASSERT_TRUE(has_sample);
647 }
648 }
649
TEST(record_cmd,callchain_joiner_options)650 TEST(record_cmd, callchain_joiner_options) {
651 TEST_REQUIRE_HW_COUNTER();
652 ASSERT_TRUE(RunRecordCmd({"--no-callchain-joiner"}));
653 ASSERT_TRUE(RunRecordCmd({"--callchain-joiner-min-matching-nodes", "2"}));
654 }
655
TEST(record_cmd,dashdash)656 TEST(record_cmd, dashdash) {
657 TEST_REQUIRE_HW_COUNTER();
658 TemporaryFile tmpfile;
659 ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "--", "sleep", "1"}));
660 }
661
TEST(record_cmd,size_limit_option)662 TEST(record_cmd, size_limit_option) {
663 TEST_REQUIRE_HW_COUNTER();
664 std::vector<std::unique_ptr<Workload>> workloads;
665 CreateProcesses(1, &workloads);
666 std::string pid = std::to_string(workloads[0]->GetPid());
667 TemporaryFile tmpfile;
668 ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "-p", pid, "--size-limit", "1k", "--duration",
669 "1"}));
670 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
671 ASSERT_TRUE(reader);
672 ASSERT_GT(reader->FileHeader().data.size, 1000u);
673 ASSERT_LT(reader->FileHeader().data.size, 2000u);
674 ASSERT_FALSE(RunRecordCmd({"--size-limit", "0"}));
675 }
676
TEST(record_cmd,support_mmap2)677 TEST(record_cmd, support_mmap2) {
678 // mmap2 is supported in kernel >= 3.16. If not supported, please cherry pick below kernel
679 // patches:
680 // 13d7a2410fa637 perf: Add attr->mmap2 attribute to an event
681 // f972eb63b1003f perf: Pass protection and flags bits through mmap2 interface.
682 TEST_REQUIRE_HW_COUNTER();
683 ASSERT_TRUE(IsMmap2Supported());
684 }
685
TEST(record_cmd,kernel_bug_making_zero_dyn_size)686 TEST(record_cmd, kernel_bug_making_zero_dyn_size) {
687 // Test a kernel bug that makes zero dyn_size in kernel < 3.13. If it fails, please cherry pick
688 // below kernel patch: 0a196848ca365e perf: Fix arch_perf_out_copy_user default
689 TEST_REQUIRE_HW_COUNTER();
690 std::vector<std::unique_ptr<Workload>> workloads;
691 CreateProcesses(1, &workloads);
692 std::string pid = std::to_string(workloads[0]->GetPid());
693 TemporaryFile tmpfile;
694 ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "-p", pid, "--call-graph", "dwarf,8",
695 "--no-unwind", "--duration", "1"}));
696 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
697 ASSERT_TRUE(reader);
698 bool has_sample = false;
699 ASSERT_TRUE(reader->ReadDataSection([&](std::unique_ptr<Record> r) {
700 if (r->type() == PERF_RECORD_SAMPLE && !r->InKernel()) {
701 SampleRecord* sr = static_cast<SampleRecord*>(r.get());
702 if (sr->stack_user_data.dyn_size == 0) {
703 return false;
704 }
705 has_sample = true;
706 }
707 return true;
708 }));
709 ASSERT_TRUE(has_sample);
710 }
711
TEST(record_cmd,kernel_bug_making_zero_dyn_size_for_kernel_samples)712 TEST(record_cmd, kernel_bug_making_zero_dyn_size_for_kernel_samples) {
713 // Test a kernel bug that makes zero dyn_size for syscalls of 32-bit applications in 64-bit
714 // kernels. If it fails, please cherry pick below kernel patch:
715 // 02e184476eff8 perf/core: Force USER_DS when recording user stack data
716 TEST_REQUIRE_HW_COUNTER();
717 TEST_REQUIRE_HOST_ROOT();
718 std::vector<std::unique_ptr<Workload>> workloads;
719 CreateProcesses(1, &workloads);
720 std::string pid = std::to_string(workloads[0]->GetPid());
721 TemporaryFile tmpfile;
722 ASSERT_TRUE(RecordCmd()->Run({"-e", "sched:sched_switch", "-o", tmpfile.path, "-p", pid,
723 "--call-graph", "dwarf,8", "--no-unwind", "--duration", "1"}));
724 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
725 ASSERT_TRUE(reader);
726 bool has_sample = false;
727 ASSERT_TRUE(reader->ReadDataSection([&](std::unique_ptr<Record> r) {
728 if (r->type() == PERF_RECORD_SAMPLE && r->InKernel()) {
729 SampleRecord* sr = static_cast<SampleRecord*>(r.get());
730 if (sr->stack_user_data.dyn_size == 0) {
731 return false;
732 }
733 has_sample = true;
734 }
735 return true;
736 }));
737 ASSERT_TRUE(has_sample);
738 }
739
TEST(record_cmd,cpu_percent_option)740 TEST(record_cmd, cpu_percent_option) {
741 TEST_REQUIRE_HW_COUNTER();
742 ASSERT_TRUE(RunRecordCmd({"--cpu-percent", "50"}));
743 ASSERT_FALSE(RunRecordCmd({"--cpu-percent", "0"}));
744 ASSERT_FALSE(RunRecordCmd({"--cpu-percent", "101"}));
745 }
746
747 class RecordingAppHelper {
748 public:
InstallApk(const std::string & apk_path,const std::string & package_name)749 bool InstallApk(const std::string& apk_path, const std::string& package_name) {
750 if (Workload::RunCmd({"pm", "install", "-t", apk_path})) {
751 installed_packages_.emplace_back(package_name);
752 return true;
753 }
754 return false;
755 }
756
StartApp(const std::string & start_cmd)757 bool StartApp(const std::string& start_cmd) {
758 app_start_proc_ = Workload::CreateWorkload(android::base::Split(start_cmd, " "));
759 return app_start_proc_ && app_start_proc_->Start();
760 }
761
RecordData(const std::string & record_cmd)762 bool RecordData(const std::string& record_cmd) {
763 std::vector<std::string> args = android::base::Split(record_cmd, " ");
764 args.emplace_back("-o");
765 args.emplace_back(perf_data_file_.path);
766 return RecordCmd()->Run(args);
767 }
768
CheckData(const std::function<bool (const char *)> & process_symbol)769 bool CheckData(const std::function<bool(const char*)>& process_symbol) {
770 bool success = false;
771 auto callback = [&](const Symbol& symbol, uint32_t) {
772 if (process_symbol(symbol.DemangledName())) {
773 success = true;
774 }
775 return success;
776 };
777 ProcessSymbolsInPerfDataFile(perf_data_file_.path, callback);
778 return success;
779 }
780
~RecordingAppHelper()781 ~RecordingAppHelper() {
782 for (auto& package : installed_packages_) {
783 Workload::RunCmd({"pm", "uninstall", package});
784 }
785 }
786
787 private:
788 std::vector<std::string> installed_packages_;
789 std::unique_ptr<Workload> app_start_proc_;
790 TemporaryFile perf_data_file_;
791 };
792
TestRecordingApps(const std::string & app_name)793 static void TestRecordingApps(const std::string& app_name) {
794 RecordingAppHelper helper;
795 // Bring the app to foreground to avoid no samples.
796 ASSERT_TRUE(helper.StartApp("am start " + app_name + "/.MainActivity"));
797
798 ASSERT_TRUE(helper.RecordData("--app " + app_name + " -g --duration 3"));
799
800 // Check if we can profile Java code by looking for a Java method name in dumped symbols, which
801 // is app_name + ".MainActivity$1.run".
802 const std::string expected_class_name = app_name + ".MainActivity";
803 const std::string expected_method_name = "run";
804 auto process_symbol = [&](const char* name) {
805 return strstr(name, expected_class_name.c_str()) != nullptr &&
806 strstr(name, expected_method_name.c_str()) != nullptr;
807 };
808 ASSERT_TRUE(helper.CheckData(process_symbol));
809 }
810
TEST(record_cmd,app_option_for_debuggable_app)811 TEST(record_cmd, app_option_for_debuggable_app) {
812 TEST_REQUIRE_HW_COUNTER();
813 TEST_REQUIRE_APPS();
814 TestRecordingApps("com.android.simpleperf.debuggable");
815 }
816
TEST(record_cmd,app_option_for_profileable_app)817 TEST(record_cmd, app_option_for_profileable_app) {
818 TEST_REQUIRE_HW_COUNTER();
819 TEST_REQUIRE_APPS();
820 TestRecordingApps("com.android.simpleperf.profileable");
821 }
822
TEST(record_cmd,record_java_app)823 TEST(record_cmd, record_java_app) {
824 RecordingAppHelper helper;
825 // 1. Install apk.
826 ASSERT_TRUE(helper.InstallApk(GetTestData("DisplayBitmaps.apk"),
827 "com.example.android.displayingbitmaps"));
828 ASSERT_TRUE(helper.InstallApk(GetTestData("DisplayBitmapsTest.apk"),
829 "com.example.android.displayingbitmaps.test"));
830
831 // 2. Start the app.
832 ASSERT_TRUE(
833 helper.StartApp("am instrument -w -r -e debug false -e class "
834 "com.example.android.displayingbitmaps.tests.GridViewTest "
835 "com.example.android.displayingbitmaps.test/"
836 "androidx.test.runner.AndroidJUnitRunner"));
837
838 // 3. Record perf.data.
839 ASSERT_TRUE(helper.RecordData(
840 "-e cpu-clock --app com.example.android.displayingbitmaps -g --duration 10"));
841
842 // 4. Check perf.data.
843 auto process_symbol = [&](const char* name) {
844 #if !defined(IN_CTS_TEST)
845 const char* expected_name_with_keyguard = "androidx.test.runner"; // when screen is locked
846 if (strstr(name, expected_name_with_keyguard) != nullptr) {
847 return true;
848 }
849 #endif
850 const char* expected_name = "androidx.test.espresso"; // when screen stays awake
851 return strstr(name, expected_name) != nullptr;
852 };
853 ASSERT_TRUE(helper.CheckData(process_symbol));
854 }
855
TEST(record_cmd,record_native_app)856 TEST(record_cmd, record_native_app) {
857 RecordingAppHelper helper;
858 // 1. Install apk.
859 ASSERT_TRUE(helper.InstallApk(GetTestData("EndlessTunnel.apk"), "com.google.sample.tunnel"));
860
861 // 2. Start the app.
862 ASSERT_TRUE(
863 helper.StartApp("am start -n com.google.sample.tunnel/android.app.NativeActivity -a "
864 "android.intent.action.MAIN -c android.intent.category.LAUNCHER"));
865
866 // 3. Record perf.data.
867 ASSERT_TRUE(helper.RecordData("-e cpu-clock --app com.google.sample.tunnel -g --duration 10"));
868
869 // 4. Check perf.data.
870 auto process_symbol = [&](const char* name) {
871 #if !defined(IN_CTS_TEST)
872 const char* expected_name_with_keyguard = "NativeActivity"; // when screen is locked
873 if (strstr(name, expected_name_with_keyguard) != nullptr) {
874 return true;
875 }
876 #endif
877 const char* expected_name = "PlayScene::DoFrame"; // when screen is awake
878 return strstr(name, expected_name) != nullptr;
879 };
880 ASSERT_TRUE(helper.CheckData(process_symbol));
881 }
882
TEST(record_cmd,no_cut_samples_option)883 TEST(record_cmd, no_cut_samples_option) {
884 TEST_REQUIRE_HW_COUNTER();
885 ASSERT_TRUE(RunRecordCmd({"--no-cut-samples"}));
886 }
887
TEST(record_cmd,cs_etm_event)888 TEST(record_cmd, cs_etm_event) {
889 if (!ETMRecorder::GetInstance().CheckEtmSupport()) {
890 GTEST_LOG_(INFO) << "Omit this test since etm isn't supported on this device";
891 return;
892 }
893 TemporaryFile tmpfile;
894 ASSERT_TRUE(RunRecordCmd({"-e", "cs-etm"}, tmpfile.path));
895 std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
896 ASSERT_TRUE(reader);
897 bool has_auxtrace_info = false;
898 bool has_auxtrace = false;
899 bool has_aux = false;
900 ASSERT_TRUE(reader->ReadDataSection([&](std::unique_ptr<Record> r) {
901 if (r->type() == PERF_RECORD_AUXTRACE_INFO) {
902 has_auxtrace_info = true;
903 } else if (r->type() == PERF_RECORD_AUXTRACE) {
904 has_auxtrace = true;
905 } else if (r->type() == PERF_RECORD_AUX) {
906 has_aux = true;
907 }
908 return true;
909 }));
910 ASSERT_TRUE(has_auxtrace_info);
911 ASSERT_TRUE(has_auxtrace);
912 ASSERT_TRUE(has_aux);
913 }
914
TEST(record_cmd,aux_buffer_size_option)915 TEST(record_cmd, aux_buffer_size_option) {
916 if (!ETMRecorder::GetInstance().CheckEtmSupport()) {
917 GTEST_LOG_(INFO) << "Omit this test since etm isn't supported on this device";
918 return;
919 }
920 ASSERT_TRUE(RunRecordCmd({"-e", "cs-etm", "--aux-buffer-size", "1m"}));
921 // not page size aligned
922 ASSERT_FALSE(RunRecordCmd({"-e", "cs-etm", "--aux-buffer-size", "1024"}));
923 // not power of two
924 ASSERT_FALSE(RunRecordCmd({"-e", "cs-etm", "--aux-buffer-size", "12k"}));
925 }
926
TEST(record_cmd,include_filter_option)927 TEST(record_cmd, include_filter_option) {
928 TEST_REQUIRE_HW_COUNTER();
929 if (!ETMRecorder::GetInstance().CheckEtmSupport()) {
930 GTEST_LOG_(INFO) << "Omit this test since etm isn't supported on this device";
931 return;
932 }
933 FILE* fp = popen("which sleep", "r");
934 ASSERT_TRUE(fp != nullptr);
935 std::string path;
936 ASSERT_TRUE(android::base::ReadFdToString(fileno(fp), &path));
937 pclose(fp);
938 path = android::base::Trim(path);
939 std::string sleep_exec_path;
940 ASSERT_TRUE(android::base::Realpath(path, &sleep_exec_path));
941 // --include-filter doesn't apply to cpu-cycles.
942 ASSERT_FALSE(RunRecordCmd({"--include-filter", sleep_exec_path}));
943 TemporaryFile record_file;
944 ASSERT_TRUE(
945 RunRecordCmd({"-e", "cs-etm", "--include-filter", sleep_exec_path}, record_file.path));
946 TemporaryFile inject_file;
947 ASSERT_TRUE(
948 CreateCommandInstance("inject")->Run({"-i", record_file.path, "-o", inject_file.path}));
949 std::string data;
950 ASSERT_TRUE(android::base::ReadFileToString(inject_file.path, &data));
951 // Only instructions in sleep_exec_path are traced.
952 for (auto& line : android::base::Split(data, "\n")) {
953 if (android::base::StartsWith(line, "dso ")) {
954 std::string dso = line.substr(strlen("dso "), sleep_exec_path.size());
955 ASSERT_EQ(dso, sleep_exec_path);
956 }
957 }
958 }