/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <android-base/file.h>
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#include <android-base/logging.h>
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#include <android-base/stringprintf.h>
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#include <map>
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#include <memory>
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#include <regex>
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#include <thread>
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#include "command.h"
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#include "environment.h"
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#include "event_selection_set.h"
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#include "get_test_data.h"
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#include "record.h"
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#include "record_file.h"
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#include "test_util.h"
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#include "thread_tree.h"
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using namespace PerfFileFormat;
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static std::unique_ptr<Command> RecordCmd() {
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return CreateCommandInstance("record");
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}
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static bool RunRecordCmd(std::vector<std::string> v,
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const char* output_file = nullptr) {
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std::unique_ptr<TemporaryFile> tmpfile;
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std::string out_file;
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if (output_file != nullptr) {
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out_file = output_file;
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} else {
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tmpfile.reset(new TemporaryFile);
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out_file = tmpfile->path;
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}
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v.insert(v.end(), {"-o", out_file, "sleep", SLEEP_SEC});
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return RecordCmd()->Run(v);
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}
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TEST(record_cmd, no_options) {
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TEST_REQUIRE_HW_COUNTER();
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ASSERT_TRUE(RunRecordCmd({}));
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}
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TEST(record_cmd, system_wide_option) {
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TEST_REQUIRE_HW_COUNTER();
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TEST_IN_ROOT(ASSERT_TRUE(RunRecordCmd({"-a"})));
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}
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void CheckEventType(const std::string& record_file, const std::string event_type,
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uint64_t sample_period, uint64_t sample_freq) {
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const EventType* type = FindEventTypeByName(event_type);
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ASSERT_TRUE(type != nullptr);
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std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(record_file);
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ASSERT_TRUE(reader);
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std::vector<EventAttrWithId> attrs = reader->AttrSection();
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for (auto& attr : attrs) {
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if (attr.attr->type == type->type && attr.attr->config == type->config) {
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if (attr.attr->freq == 0) {
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ASSERT_EQ(sample_period, attr.attr->sample_period);
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ASSERT_EQ(sample_freq, 0u);
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} else {
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ASSERT_EQ(sample_period, 0u);
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ASSERT_EQ(sample_freq, attr.attr->sample_freq);
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}
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return;
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}
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}
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FAIL();
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}
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TEST(record_cmd, sample_period_option) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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ASSERT_TRUE(RunRecordCmd({"-c", "100000"}, tmpfile.path));
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CheckEventType(tmpfile.path, "cpu-cycles", 100000u, 0);
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}
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TEST(record_cmd, event_option) {
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ASSERT_TRUE(RunRecordCmd({"-e", "cpu-clock"}));
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}
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TEST(record_cmd, freq_option) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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ASSERT_TRUE(RunRecordCmd({"-f", "99"}, tmpfile.path));
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CheckEventType(tmpfile.path, "cpu-cycles", 0, 99u);
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ASSERT_TRUE(RunRecordCmd({"-e", "cpu-clock", "-f", "99"}, tmpfile.path));
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CheckEventType(tmpfile.path, "cpu-clock", 0, 99u);
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ASSERT_FALSE(RunRecordCmd({"-f", std::to_string(UINT_MAX)}));
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}
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TEST(record_cmd, multiple_freq_or_sample_period_option) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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ASSERT_TRUE(RunRecordCmd({"-f", "99", "-e", "cpu-cycles", "-c", "1000000", "-e",
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"cpu-clock"}, tmpfile.path));
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CheckEventType(tmpfile.path, "cpu-cycles", 0, 99u);
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CheckEventType(tmpfile.path, "cpu-clock", 1000000u, 0u);
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}
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TEST(record_cmd, output_file_option) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "sleep", SLEEP_SEC}));
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}
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TEST(record_cmd, dump_kernel_mmap) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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ASSERT_TRUE(RunRecordCmd({}, tmpfile.path));
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std::unique_ptr<RecordFileReader> reader =
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RecordFileReader::CreateInstance(tmpfile.path);
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ASSERT_TRUE(reader != nullptr);
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std::vector<std::unique_ptr<Record>> records = reader->DataSection();
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ASSERT_GT(records.size(), 0U);
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bool have_kernel_mmap = false;
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for (auto& record : records) {
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if (record->type() == PERF_RECORD_MMAP) {
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const MmapRecord* mmap_record =
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static_cast<const MmapRecord*>(record.get());
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if (strcmp(mmap_record->filename, DEFAULT_KERNEL_MMAP_NAME) == 0 ||
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strcmp(mmap_record->filename, DEFAULT_KERNEL_MMAP_NAME_PERF) == 0) {
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have_kernel_mmap = true;
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break;
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}
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}
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}
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ASSERT_TRUE(have_kernel_mmap);
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}
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TEST(record_cmd, dump_build_id_feature) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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ASSERT_TRUE(RunRecordCmd({}, tmpfile.path));
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std::unique_ptr<RecordFileReader> reader =
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RecordFileReader::CreateInstance(tmpfile.path);
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ASSERT_TRUE(reader != nullptr);
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const FileHeader& file_header = reader->FileHeader();
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ASSERT_TRUE(file_header.features[FEAT_BUILD_ID / 8] &
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(1 << (FEAT_BUILD_ID % 8)));
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ASSERT_GT(reader->FeatureSectionDescriptors().size(), 0u);
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}
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TEST(record_cmd, tracepoint_event) {
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TEST_IN_ROOT(ASSERT_TRUE(RunRecordCmd({"-a", "-e", "sched:sched_switch"})));
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}
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TEST(record_cmd, rN_event) {
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TEST_REQUIRE_HW_COUNTER();
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OMIT_TEST_ON_NON_NATIVE_ABIS();
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size_t event_number;
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if (GetBuildArch() == ARCH_ARM64 || GetBuildArch() == ARCH_ARM) {
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// As in D5.10.2 of the ARMv8 manual, ARM defines the event number space for PMU. part of the
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// space is for common event numbers (which will stay the same for all ARM chips), part of the
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// space is for implementation defined events. Here 0x08 is a common event for instructions.
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event_number = 0x08;
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} else if (GetBuildArch() == ARCH_X86_32 || GetBuildArch() == ARCH_X86_64) {
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// As in volume 3 chapter 19 of the Intel manual, 0x00c0 is the event number for instruction.
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event_number = 0x00c0;
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} else {
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GTEST_LOG_(INFO) << "Omit arch " << GetBuildArch();
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return;
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}
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std::string event_name = android::base::StringPrintf("r%zx", event_number);
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TemporaryFile tmpfile;
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ASSERT_TRUE(RunRecordCmd({"-e", event_name}, tmpfile.path));
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std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
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ASSERT_TRUE(reader);
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std::vector<EventAttrWithId> attrs = reader->AttrSection();
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ASSERT_EQ(1u, attrs.size());
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ASSERT_EQ(PERF_TYPE_RAW, attrs[0].attr->type);
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ASSERT_EQ(event_number, attrs[0].attr->config);
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}
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TEST(record_cmd, branch_sampling) {
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TEST_REQUIRE_HW_COUNTER();
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if (IsBranchSamplingSupported()) {
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ASSERT_TRUE(RunRecordCmd({"-b"}));
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ASSERT_TRUE(RunRecordCmd({"-j", "any,any_call,any_ret,ind_call"}));
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ASSERT_TRUE(RunRecordCmd({"-j", "any,k"}));
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ASSERT_TRUE(RunRecordCmd({"-j", "any,u"}));
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ASSERT_FALSE(RunRecordCmd({"-j", "u"}));
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} else {
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GTEST_LOG_(INFO) << "This test does nothing as branch stack sampling is "
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"not supported on this device.";
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}
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}
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TEST(record_cmd, event_modifier) {
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TEST_REQUIRE_HW_COUNTER();
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ASSERT_TRUE(RunRecordCmd({"-e", "cpu-cycles:u"}));
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}
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TEST(record_cmd, fp_callchain_sampling) {
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TEST_REQUIRE_HW_COUNTER();
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ASSERT_TRUE(RunRecordCmd({"--call-graph", "fp"}));
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}
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TEST(record_cmd, fp_callchain_sampling_warning_on_arm) {
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TEST_REQUIRE_HW_COUNTER();
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if (GetBuildArch() != ARCH_ARM) {
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GTEST_LOG_(INFO) << "This test does nothing as it only tests on arm arch.";
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return;
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}
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ASSERT_EXIT(
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{
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exit(RunRecordCmd({"--call-graph", "fp"}) ? 0 : 1);
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},
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testing::ExitedWithCode(0), "doesn't work well on arm");
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}
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TEST(record_cmd, system_wide_fp_callchain_sampling) {
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TEST_REQUIRE_HW_COUNTER();
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TEST_IN_ROOT(ASSERT_TRUE(RunRecordCmd({"-a", "--call-graph", "fp"})));
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}
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bool IsInNativeAbi() {
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static int in_native_abi = -1;
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if (in_native_abi == -1) {
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FILE* fp = popen("uname -m", "re");
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char buf[40];
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memset(buf, '\0', sizeof(buf));
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CHECK_EQ(fgets(buf, sizeof(buf), fp), buf);
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pclose(fp);
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std::string s = buf;
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in_native_abi = 1;
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if (GetBuildArch() == ARCH_X86_32 || GetBuildArch() == ARCH_X86_64) {
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if (s.find("86") == std::string::npos) {
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in_native_abi = 0;
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}
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} else if (GetBuildArch() == ARCH_ARM || GetBuildArch() == ARCH_ARM64) {
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if (s.find("arm") == std::string::npos && s.find("aarch64") == std::string::npos) {
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in_native_abi = 0;
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}
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}
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}
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return in_native_abi == 1;
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}
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bool HasHardwareCounter() {
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static int has_hw_counter = -1;
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if (has_hw_counter == -1) {
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has_hw_counter = 1;
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#if defined(__arm__)
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std::string cpu_info;
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if (android::base::ReadFileToString("/proc/cpuinfo", &cpu_info)) {
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std::string hardware = GetHardwareFromCpuInfo(cpu_info);
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if (std::regex_search(hardware, std::regex(R"(i\.MX6.*Quad)")) ||
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std::regex_search(hardware, std::regex(R"(SC7731e)")) ) {
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has_hw_counter = 0;
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}
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}
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#endif
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}
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return has_hw_counter == 1;
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}
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TEST(record_cmd, dwarf_callchain_sampling) {
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TEST_REQUIRE_HW_COUNTER();
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OMIT_TEST_ON_NON_NATIVE_ABIS();
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ASSERT_TRUE(IsDwarfCallChainSamplingSupported());
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std::vector<std::unique_ptr<Workload>> workloads;
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CreateProcesses(1, &workloads);
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std::string pid = std::to_string(workloads[0]->GetPid());
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ASSERT_TRUE(RunRecordCmd({"-p", pid, "--call-graph", "dwarf"}));
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ASSERT_TRUE(RunRecordCmd({"-p", pid, "--call-graph", "dwarf,16384"}));
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ASSERT_FALSE(RunRecordCmd({"-p", pid, "--call-graph", "dwarf,65536"}));
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ASSERT_TRUE(RunRecordCmd({"-p", pid, "-g"}));
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}
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TEST(record_cmd, system_wide_dwarf_callchain_sampling) {
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TEST_REQUIRE_HW_COUNTER();
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OMIT_TEST_ON_NON_NATIVE_ABIS();
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ASSERT_TRUE(IsDwarfCallChainSamplingSupported());
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TEST_IN_ROOT(RunRecordCmd({"-a", "--call-graph", "dwarf"}));
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}
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TEST(record_cmd, no_unwind_option) {
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TEST_REQUIRE_HW_COUNTER();
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OMIT_TEST_ON_NON_NATIVE_ABIS();
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ASSERT_TRUE(IsDwarfCallChainSamplingSupported());
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ASSERT_TRUE(RunRecordCmd({"--call-graph", "dwarf", "--no-unwind"}));
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ASSERT_FALSE(RunRecordCmd({"--no-unwind"}));
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}
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TEST(record_cmd, post_unwind_option) {
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TEST_REQUIRE_HW_COUNTER();
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OMIT_TEST_ON_NON_NATIVE_ABIS();
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ASSERT_TRUE(IsDwarfCallChainSamplingSupported());
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std::vector<std::unique_ptr<Workload>> workloads;
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CreateProcesses(1, &workloads);
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std::string pid = std::to_string(workloads[0]->GetPid());
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ASSERT_TRUE(RunRecordCmd({"-p", pid, "--call-graph", "dwarf", "--post-unwind"}));
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ASSERT_TRUE(RunRecordCmd({"-p", pid, "--call-graph", "dwarf", "--post-unwind=yes"}));
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ASSERT_TRUE(RunRecordCmd({"-p", pid, "--call-graph", "dwarf", "--post-unwind=no"}));
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}
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TEST(record_cmd, existing_processes) {
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TEST_REQUIRE_HW_COUNTER();
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std::vector<std::unique_ptr<Workload>> workloads;
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CreateProcesses(2, &workloads);
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std::string pid_list = android::base::StringPrintf(
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"%d,%d", workloads[0]->GetPid(), workloads[1]->GetPid());
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ASSERT_TRUE(RunRecordCmd({"-p", pid_list}));
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}
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TEST(record_cmd, existing_threads) {
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TEST_REQUIRE_HW_COUNTER();
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std::vector<std::unique_ptr<Workload>> workloads;
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CreateProcesses(2, &workloads);
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// Process id can also be used as thread id in linux.
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std::string tid_list = android::base::StringPrintf(
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"%d,%d", workloads[0]->GetPid(), workloads[1]->GetPid());
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ASSERT_TRUE(RunRecordCmd({"-t", tid_list}));
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}
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TEST(record_cmd, no_monitored_threads) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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ASSERT_FALSE(RecordCmd()->Run({"-o", tmpfile.path}));
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ASSERT_FALSE(RecordCmd()->Run({"-o", tmpfile.path, ""}));
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}
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TEST(record_cmd, more_than_one_event_types) {
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TEST_REQUIRE_HW_COUNTER();
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ASSERT_TRUE(RunRecordCmd({"-e", "cpu-cycles,cpu-clock"}));
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ASSERT_TRUE(RunRecordCmd({"-e", "cpu-cycles", "-e", "cpu-clock"}));
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}
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TEST(record_cmd, mmap_page_option) {
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TEST_REQUIRE_HW_COUNTER();
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ASSERT_TRUE(RunRecordCmd({"-m", "1"}));
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ASSERT_FALSE(RunRecordCmd({"-m", "0"}));
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ASSERT_FALSE(RunRecordCmd({"-m", "7"}));
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}
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static void CheckKernelSymbol(const std::string& path, bool need_kallsyms,
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bool* success) {
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*success = false;
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std::unique_ptr<RecordFileReader> reader =
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RecordFileReader::CreateInstance(path);
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ASSERT_TRUE(reader != nullptr);
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std::vector<std::unique_ptr<Record>> records = reader->DataSection();
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bool has_kernel_symbol_records = false;
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for (const auto& record : records) {
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if (record->type() == SIMPLE_PERF_RECORD_KERNEL_SYMBOL) {
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has_kernel_symbol_records = true;
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}
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}
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bool require_kallsyms = need_kallsyms && CheckKernelSymbolAddresses();
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ASSERT_EQ(require_kallsyms, has_kernel_symbol_records);
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*success = true;
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}
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TEST(record_cmd, kernel_symbol) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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ASSERT_TRUE(RunRecordCmd({"--no-dump-symbols"}, tmpfile.path));
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bool success;
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CheckKernelSymbol(tmpfile.path, true, &success);
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ASSERT_TRUE(success);
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ASSERT_TRUE(RunRecordCmd({"--no-dump-symbols", "--no-dump-kernel-symbols"}, tmpfile.path));
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CheckKernelSymbol(tmpfile.path, false, &success);
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ASSERT_TRUE(success);
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}
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// Check if dumped symbols in perf.data matches our expectation.
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static bool CheckDumpedSymbols(const std::string& path, bool allow_dumped_symbols) {
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std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(path);
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if (!reader) {
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return false;
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}
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std::string file_path;
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uint32_t file_type;
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uint64_t min_vaddr;
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uint64_t file_offset_of_min_vaddr;
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std::vector<Symbol> symbols;
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std::vector<uint64_t> dex_file_offsets;
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size_t read_pos = 0;
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bool has_dumped_symbols = false;
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while (reader->ReadFileFeature(read_pos, &file_path, &file_type, &min_vaddr,
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&file_offset_of_min_vaddr, &symbols, &dex_file_offsets)) {
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if (!symbols.empty()) {
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has_dumped_symbols = true;
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}
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}
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// It is possible that there are no samples hitting functions having symbols.
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// So "allow_dumped_symbols = true" doesn't guarantee "has_dumped_symbols = true".
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if (!allow_dumped_symbols && has_dumped_symbols) {
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return false;
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}
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return true;
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}
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TEST(record_cmd, no_dump_symbols) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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ASSERT_TRUE(RunRecordCmd({}, tmpfile.path));
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ASSERT_TRUE(CheckDumpedSymbols(tmpfile.path, true));
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ASSERT_TRUE(RunRecordCmd({"--no-dump-symbols", "--no-dump-kernel-symbols"}, tmpfile.path));
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ASSERT_TRUE(CheckDumpedSymbols(tmpfile.path, false));
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OMIT_TEST_ON_NON_NATIVE_ABIS();
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ASSERT_TRUE(IsDwarfCallChainSamplingSupported());
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std::vector<std::unique_ptr<Workload>> workloads;
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CreateProcesses(1, &workloads);
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std::string pid = std::to_string(workloads[0]->GetPid());
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ASSERT_TRUE(RunRecordCmd({"-p", pid, "-g"}, tmpfile.path));
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ASSERT_TRUE(CheckDumpedSymbols(tmpfile.path, true));
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ASSERT_TRUE(RunRecordCmd({"-p", pid, "-g", "--no-dump-symbols", "--no-dump-kernel-symbols"},
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tmpfile.path));
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ASSERT_TRUE(CheckDumpedSymbols(tmpfile.path, false));
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}
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TEST(record_cmd, dump_kernel_symbols) {
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TEST_REQUIRE_HW_COUNTER();
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if (!IsRoot()) {
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GTEST_LOG_(INFO) << "Test requires root privilege";
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return;
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}
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TemporaryFile tmpfile;
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ASSERT_TRUE(RunRecordCmd({"-a", "-o", tmpfile.path, "sleep", "1"}));
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std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
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ASSERT_TRUE(reader != nullptr);
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std::map<int, SectionDesc> section_map = reader->FeatureSectionDescriptors();
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ASSERT_NE(section_map.find(FEAT_FILE), section_map.end());
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std::string file_path;
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uint32_t file_type;
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uint64_t min_vaddr;
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uint64_t file_offset_of_min_vaddr;
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std::vector<Symbol> symbols;
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std::vector<uint64_t> dex_file_offsets;
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size_t read_pos = 0;
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bool has_kernel_symbols = false;
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while (reader->ReadFileFeature(read_pos, &file_path, &file_type, &min_vaddr,
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&file_offset_of_min_vaddr, &symbols, &dex_file_offsets)) {
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if (file_type == DSO_KERNEL && !symbols.empty()) {
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has_kernel_symbols = true;
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}
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}
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ASSERT_TRUE(has_kernel_symbols);
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}
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TEST(record_cmd, group_option) {
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TEST_REQUIRE_HW_COUNTER();
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ASSERT_TRUE(RunRecordCmd({"--group", "cpu-cycles,cpu-clock", "-m", "16"}));
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ASSERT_TRUE(RunRecordCmd({"--group", "cpu-cycles,cpu-clock", "--group",
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"cpu-cycles:u,cpu-clock:u", "--group",
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"cpu-cycles:k,cpu-clock:k", "-m", "16"}));
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}
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TEST(record_cmd, symfs_option) {
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TEST_REQUIRE_HW_COUNTER();
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ASSERT_TRUE(RunRecordCmd({"--symfs", "/"}));
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}
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TEST(record_cmd, duration_option) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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ASSERT_TRUE(RecordCmd()->Run({"--duration", "1.2", "-p",
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std::to_string(getpid()), "-o", tmpfile.path, "--in-app"}));
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ASSERT_TRUE(
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RecordCmd()->Run({"--duration", "1", "-o", tmpfile.path, "sleep", "2"}));
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}
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TEST(record_cmd, support_modifier_for_clock_events) {
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for (const std::string& e : {"cpu-clock", "task-clock"}) {
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for (const std::string& m : {"u", "k"}) {
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ASSERT_TRUE(RunRecordCmd({"-e", e + ":" + m})) << "event " << e << ":"
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<< m;
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}
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}
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}
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TEST(record_cmd, handle_SIGHUP) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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int pipefd[2];
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ASSERT_EQ(0, pipe(pipefd));
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int read_fd = pipefd[0];
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int write_fd = pipefd[1];
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char data[8] = {};
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std::thread thread([&]() {
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android::base::ReadFully(read_fd, data, 7);
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kill(getpid(), SIGHUP);
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});
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ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "--start_profiling_fd",
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std::to_string(write_fd), "sleep", "1000000"}));
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thread.join();
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close(write_fd);
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close(read_fd);
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ASSERT_STREQ(data, "STARTED");
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}
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TEST(record_cmd, stop_when_no_more_targets) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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std::atomic<int> tid(0);
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std::thread thread([&]() {
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tid = gettid();
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sleep(1);
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});
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thread.detach();
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while (tid == 0);
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ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "-t", std::to_string(tid), "--in-app"}));
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}
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TEST(record_cmd, donot_stop_when_having_targets) {
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TEST_REQUIRE_HW_COUNTER();
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std::vector<std::unique_ptr<Workload>> workloads;
|
CreateProcesses(1, &workloads);
|
std::string pid = std::to_string(workloads[0]->GetPid());
|
uint64_t start_time_in_ns = GetSystemClock();
|
TemporaryFile tmpfile;
|
ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "-p", pid, "--duration", "3"}));
|
uint64_t end_time_in_ns = GetSystemClock();
|
ASSERT_GT(end_time_in_ns - start_time_in_ns, static_cast<uint64_t>(2e9));
|
}
|
|
TEST(record_cmd, start_profiling_fd_option) {
|
TEST_REQUIRE_HW_COUNTER();
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int pipefd[2];
|
ASSERT_EQ(0, pipe(pipefd));
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int read_fd = pipefd[0];
|
int write_fd = pipefd[1];
|
ASSERT_EXIT(
|
{
|
close(read_fd);
|
exit(RunRecordCmd({"--start_profiling_fd", std::to_string(write_fd)}) ? 0 : 1);
|
},
|
testing::ExitedWithCode(0), "");
|
close(write_fd);
|
std::string s;
|
ASSERT_TRUE(android::base::ReadFdToString(read_fd, &s));
|
close(read_fd);
|
ASSERT_EQ("STARTED", s);
|
}
|
|
TEST(record_cmd, record_meta_info_feature) {
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TEST_REQUIRE_HW_COUNTER();
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TemporaryFile tmpfile;
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ASSERT_TRUE(RunRecordCmd({}, tmpfile.path));
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std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
|
ASSERT_TRUE(reader);
|
std::unordered_map<std::string, std::string> info_map;
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ASSERT_TRUE(reader->ReadMetaInfoFeature(&info_map));
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ASSERT_NE(info_map.find("simpleperf_version"), info_map.end());
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ASSERT_NE(info_map.find("timestamp"), info_map.end());
|
#if defined(__ANDROID__)
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ASSERT_NE(info_map.find("product_props"), info_map.end());
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ASSERT_NE(info_map.find("android_version"), info_map.end());
|
#endif
|
}
|
|
// See http://b/63135835.
|
TEST(record_cmd, cpu_clock_for_a_long_time) {
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std::vector<std::unique_ptr<Workload>> workloads;
|
CreateProcesses(1, &workloads);
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std::string pid = std::to_string(workloads[0]->GetPid());
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TemporaryFile tmpfile;
|
ASSERT_TRUE(RecordCmd()->Run(
|
{"-e", "cpu-clock", "-o", tmpfile.path, "-p", pid, "--duration", "3"}));
|
}
|
|
TEST(record_cmd, dump_regs_for_tracepoint_events) {
|
TEST_REQUIRE_HW_COUNTER();
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TEST_REQUIRE_HOST_ROOT();
|
OMIT_TEST_ON_NON_NATIVE_ABIS();
|
// Check if the kernel can dump registers for tracepoint events.
|
// If not, probably a kernel patch below is missing:
|
// "5b09a094f2 arm64: perf: Fix callchain parse error with kernel tracepoint events"
|
ASSERT_TRUE(IsDumpingRegsForTracepointEventsSupported());
|
}
|
|
TEST(record_cmd, trace_offcpu_option) {
|
TEST_REQUIRE_HW_COUNTER();
|
// On linux host, we need root privilege to read tracepoint events.
|
TEST_REQUIRE_HOST_ROOT();
|
OMIT_TEST_ON_NON_NATIVE_ABIS();
|
TemporaryFile tmpfile;
|
ASSERT_TRUE(RunRecordCmd({"--trace-offcpu", "-f", "1000"}, tmpfile.path));
|
std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
|
ASSERT_TRUE(reader);
|
std::unordered_map<std::string, std::string> info_map;
|
ASSERT_TRUE(reader->ReadMetaInfoFeature(&info_map));
|
ASSERT_EQ(info_map["trace_offcpu"], "true");
|
CheckEventType(tmpfile.path, "sched:sched_switch", 1u, 0u);
|
}
|
|
TEST(record_cmd, exit_with_parent_option) {
|
TEST_REQUIRE_HW_COUNTER();
|
ASSERT_TRUE(RunRecordCmd({"--exit-with-parent"}));
|
}
|
|
TEST(record_cmd, clockid_option) {
|
TEST_REQUIRE_HW_COUNTER();
|
if (!IsSettingClockIdSupported()) {
|
ASSERT_FALSE(RunRecordCmd({"--clockid", "monotonic"}));
|
} else {
|
TemporaryFile tmpfile;
|
ASSERT_TRUE(RunRecordCmd({"--clockid", "monotonic"}, tmpfile.path));
|
std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
|
ASSERT_TRUE(reader);
|
std::unordered_map<std::string, std::string> info_map;
|
ASSERT_TRUE(reader->ReadMetaInfoFeature(&info_map));
|
ASSERT_EQ(info_map["clockid"], "monotonic");
|
}
|
}
|
|
TEST(record_cmd, generate_samples_by_hw_counters) {
|
TEST_REQUIRE_HW_COUNTER();
|
std::vector<std::string> events = {"cpu-cycles", "instructions"};
|
for (auto& event : events) {
|
TemporaryFile tmpfile;
|
ASSERT_TRUE(RecordCmd()->Run({"-e", event, "-o", tmpfile.path, "sleep", "1"}));
|
std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
|
ASSERT_TRUE(reader);
|
bool has_sample = false;
|
ASSERT_TRUE(reader->ReadDataSection([&](std::unique_ptr<Record> r) {
|
if (r->type() == PERF_RECORD_SAMPLE) {
|
has_sample = true;
|
}
|
return true;
|
}));
|
ASSERT_TRUE(has_sample);
|
}
|
}
|
|
TEST(record_cmd, callchain_joiner_options) {
|
TEST_REQUIRE_HW_COUNTER();
|
ASSERT_TRUE(RunRecordCmd({"--no-callchain-joiner"}));
|
ASSERT_TRUE(RunRecordCmd({"--callchain-joiner-min-matching-nodes", "2"}));
|
}
|
|
TEST(record_cmd, dashdash) {
|
TEST_REQUIRE_HW_COUNTER();
|
TemporaryFile tmpfile;
|
ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "--", "sleep", "1"}));
|
}
|
|
TEST(record_cmd, size_limit_option) {
|
TEST_REQUIRE_HW_COUNTER();
|
std::vector<std::unique_ptr<Workload>> workloads;
|
CreateProcesses(1, &workloads);
|
std::string pid = std::to_string(workloads[0]->GetPid());
|
TemporaryFile tmpfile;
|
ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "-p", pid, "--size-limit", "1k", "--duration",
|
"1"}));
|
std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
|
ASSERT_TRUE(reader);
|
ASSERT_GT(reader->FileHeader().data.size, 1000u);
|
ASSERT_LT(reader->FileHeader().data.size, 2000u);
|
ASSERT_FALSE(RunRecordCmd({"--size-limit", "0"}));
|
}
|
|
TEST(record_cmd, support_mmap2) {
|
// mmap2 is supported in kernel >= 3.16. If not supported, please cherry pick below kernel
|
// patches:
|
// 13d7a2410fa637 perf: Add attr->mmap2 attribute to an event
|
// f972eb63b1003f perf: Pass protection and flags bits through mmap2 interface.
|
TEST_REQUIRE_HW_COUNTER();
|
ASSERT_TRUE(IsMmap2Supported());
|
}
|
|
TEST(record_cmd, kernel_bug_making_zero_dyn_size) {
|
// Test a kernel bug that makes zero dyn_size in kernel < 3.13. If it fails, please cherry pick
|
// below kernel patch: 0a196848ca365e perf: Fix arch_perf_out_copy_user default
|
TEST_REQUIRE_HW_COUNTER();
|
std::vector<std::unique_ptr<Workload>> workloads;
|
CreateProcesses(1, &workloads);
|
std::string pid = std::to_string(workloads[0]->GetPid());
|
TemporaryFile tmpfile;
|
ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "-p", pid, "--call-graph", "dwarf,8",
|
"--no-unwind", "--duration", "1"}));
|
std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
|
ASSERT_TRUE(reader);
|
bool has_sample = false;
|
ASSERT_TRUE(reader->ReadDataSection([&](std::unique_ptr<Record> r) {
|
if (r->type() == PERF_RECORD_SAMPLE && !r->InKernel()) {
|
SampleRecord* sr = static_cast<SampleRecord*>(r.get());
|
if (sr->stack_user_data.dyn_size == 0) {
|
return false;
|
}
|
has_sample = true;
|
}
|
return true;
|
}));
|
ASSERT_TRUE(has_sample);
|
}
|
|
TEST(record_cmd, kernel_bug_making_zero_dyn_size_for_kernel_samples) {
|
// Test a kernel bug that makes zero dyn_size for syscalls of 32-bit applications in 64-bit
|
// kernels. If it fails, please cherry pick below kernel patch:
|
// 02e184476eff8 perf/core: Force USER_DS when recording user stack data
|
TEST_REQUIRE_HW_COUNTER();
|
TEST_REQUIRE_HOST_ROOT();
|
std::vector<std::unique_ptr<Workload>> workloads;
|
CreateProcesses(1, &workloads);
|
std::string pid = std::to_string(workloads[0]->GetPid());
|
TemporaryFile tmpfile;
|
ASSERT_TRUE(RecordCmd()->Run({"-e", "sched:sched_switch", "-o", tmpfile.path, "-p", pid,
|
"--call-graph", "dwarf,8", "--no-unwind", "--duration", "1"}));
|
std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
|
ASSERT_TRUE(reader);
|
bool has_sample = false;
|
ASSERT_TRUE(reader->ReadDataSection([&](std::unique_ptr<Record> r) {
|
if (r->type() == PERF_RECORD_SAMPLE && r->InKernel()) {
|
SampleRecord* sr = static_cast<SampleRecord*>(r.get());
|
if (sr->stack_user_data.dyn_size == 0) {
|
return false;
|
}
|
has_sample = true;
|
}
|
return true;
|
}));
|
ASSERT_TRUE(has_sample);
|
}
|
|
TEST(record_cmd, cpu_percent_option) {
|
TEST_REQUIRE_HW_COUNTER();
|
ASSERT_TRUE(RunRecordCmd({"--cpu-percent", "50"}));
|
ASSERT_FALSE(RunRecordCmd({"--cpu-percent", "0"}));
|
ASSERT_FALSE(RunRecordCmd({"--cpu-percent", "101"}));
|
}
|
|
static void TestRecordingApps(const std::string& app_name) {
|
// Bring the app to foreground to avoid no samples.
|
ASSERT_TRUE(Workload::RunCmd({"am", "start", app_name + "/.MainActivity"}));
|
TemporaryFile tmpfile;
|
ASSERT_TRUE(RecordCmd()->Run({"-o", tmpfile.path, "--app", app_name, "-g", "--duration", "3"}));
|
std::unique_ptr<RecordFileReader> reader = RecordFileReader::CreateInstance(tmpfile.path);
|
ASSERT_TRUE(reader);
|
// Check if having samples.
|
bool has_sample = false;
|
ASSERT_TRUE(reader->ReadDataSection([&](std::unique_ptr<Record> r) {
|
if (r->type() == PERF_RECORD_SAMPLE) {
|
has_sample = true;
|
}
|
return true;
|
}));
|
ASSERT_TRUE(has_sample);
|
|
// Check if we can profile Java code by looking for a Java method name in dumped symbols, which
|
// is app_name + ".MainActivity$1.run".
|
const std::string expected_class_name = app_name + ".MainActivity";
|
const std::string expected_method_name = "run";
|
std::string file_path;
|
uint32_t file_type;
|
uint64_t min_vaddr;
|
uint64_t file_offset_of_min_vaddr;
|
std::vector<Symbol> symbols;
|
std::vector<uint64_t> dex_file_offsets;
|
size_t read_pos = 0;
|
bool has_java_symbol = false;
|
ASSERT_TRUE(reader->HasFeature(FEAT_FILE));
|
while (reader->ReadFileFeature(read_pos, &file_path, &file_type, &min_vaddr,
|
&file_offset_of_min_vaddr, &symbols, &dex_file_offsets)) {
|
for (const auto& symbol : symbols) {
|
const char* name = symbol.DemangledName();
|
if (strstr(name, expected_class_name.c_str()) != nullptr &&
|
strstr(name, expected_method_name.c_str()) != nullptr) {
|
has_java_symbol = true;
|
}
|
}
|
}
|
ASSERT_TRUE(has_java_symbol);
|
}
|
|
TEST(record_cmd, app_option_for_debuggable_app) {
|
TEST_REQUIRE_HW_COUNTER();
|
TEST_REQUIRE_APPS();
|
TestRecordingApps("com.android.simpleperf.debuggable");
|
}
|
|
TEST(record_cmd, app_option_for_profileable_app) {
|
TEST_REQUIRE_HW_COUNTER();
|
TEST_REQUIRE_APPS();
|
TestRecordingApps("com.android.simpleperf.profileable");
|
}
|
