64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
/*
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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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#ifndef SIMPLE_PERF_EVENT_ATTR_H_
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#define SIMPLE_PERF_EVENT_ATTR_H_
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#include <stddef.h>
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#include <string.h>
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#include <string>
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#include <vector>
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#include "perf_event.h"
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namespace simpleperf {
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struct EventType;
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struct EventAttrWithId {
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perf_event_attr attr;
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std::vector<uint64_t> ids;
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};
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using EventAttrIds = std::vector<EventAttrWithId>;
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inline constexpr uint64_t INFINITE_SAMPLE_PERIOD = 1ULL << 62;
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perf_event_attr CreateDefaultPerfEventAttr(const EventType& event_type);
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void DumpPerfEventAttr(const perf_event_attr& attr, size_t indent = 0);
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bool GetCommonEventIdPositionsForAttrs(const EventAttrIds& attrs,
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size_t* event_id_pos_in_sample_records,
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size_t* event_id_reverse_pos_in_non_sample_records);
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bool IsTimestampSupported(const perf_event_attr& attr);
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bool IsCpuSupported(const perf_event_attr& attr);
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// Return event name with modifier if the event is found, otherwise return "unknown".
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// This function is slow for using linear search, so only used when reporting.
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std::string GetEventNameByAttr(const perf_event_attr& attr);
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void ReplaceRegAndStackWithCallChain(perf_event_attr& attr);
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inline bool operator==(const perf_event_attr& attr1, const perf_event_attr& attr2) {
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return memcmp(&attr1, &attr2, sizeof(perf_event_attr)) == 0;
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}
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inline bool operator!=(const perf_event_attr& attr1, const perf_event_attr& attr2) {
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return !(attr1 == attr2);
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}
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} // namespace simpleperf
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#endif // SIMPLE_PERF_EVENT_ATTR_H_
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