74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
/*
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* Copyright (C) 2020 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 <wakelock/wakelock.h>
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#include <include/simpleperf_profcollect.hpp>
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#include "ETMRecorder.h"
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#include "command.h"
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#include "event_attr.h"
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#include "event_fd.h"
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#include "event_type.h"
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using namespace simpleperf;
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bool HasDriverSupport() {
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return ETMRecorder::GetInstance().IsETMDriverAvailable();
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}
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bool HasDeviceSupport() {
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auto result = ETMRecorder::GetInstance().CheckEtmSupport();
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if (!result.ok()) {
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LOG(DEBUG) << result.error();
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return false;
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}
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const EventType* type = FindEventTypeByName("cs-etm", false);
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if (type == nullptr) {
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return false;
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}
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return IsEventAttrSupported(CreateDefaultPerfEventAttr(*type), type->name);
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}
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bool Record(const char* event_name, const char* output, float duration) {
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// The kernel may panic when trying to hibernate or hotplug CPUs while collecting
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// ETM data. So get wakelock to keep the CPUs on.
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auto wakelock = android::wakelock::WakeLock::tryGet("profcollectd");
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if (!wakelock) {
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LOG(ERROR) << "Failed to request wakelock.";
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return false;
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}
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auto recordCmd = CreateCommandInstance("record");
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std::vector<std::string> args;
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args.push_back("-a");
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args.insert(args.end(), {"-e", event_name});
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args.insert(args.end(), {"--duration", std::to_string(duration)});
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args.insert(args.end(), {"-o", output});
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return recordCmd->Run(args);
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}
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bool Inject(const char* traceInput, const char* profileOutput, const char* binary_filter) {
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auto injectCmd = CreateCommandInstance("inject");
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std::vector<std::string> args;
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args.insert(args.end(), {"-i", traceInput});
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args.insert(args.end(), {"-o", profileOutput});
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if (binary_filter) {
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args.insert(args.end(), {"--binary", binary_filter});
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}
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args.insert(args.end(), {"--output", "branch-list"});
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args.emplace_back("--exclude-perf");
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return injectCmd->Run(args);
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}
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