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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SIMPLE_PERF_EVENT_ATTR_H_
#define SIMPLE_PERF_EVENT_ATTR_H_
#include <stddef.h>
#include <string.h>
#include <string>
#include <vector>
#include "perf_event.h"
namespace simpleperf {
struct EventType;
struct EventAttrWithId {
perf_event_attr attr;
std::vector<uint64_t> ids;
};
using EventAttrIds = std::vector<EventAttrWithId>;
inline constexpr uint64_t INFINITE_SAMPLE_PERIOD = 1ULL << 62;
perf_event_attr CreateDefaultPerfEventAttr(const EventType& event_type);
void DumpPerfEventAttr(const perf_event_attr& attr, size_t indent = 0);
bool GetCommonEventIdPositionsForAttrs(const EventAttrIds& attrs,
size_t* event_id_pos_in_sample_records,
size_t* event_id_reverse_pos_in_non_sample_records);
bool IsTimestampSupported(const perf_event_attr& attr);
bool IsCpuSupported(const perf_event_attr& attr);
// Return event name with modifier if the event is found, otherwise return "unknown".
// This function is slow for using linear search, so only used when reporting.
std::string GetEventNameByAttr(const perf_event_attr& attr);
void ReplaceRegAndStackWithCallChain(perf_event_attr& attr);
inline bool operator==(const perf_event_attr& attr1, const perf_event_attr& attr2) {
return memcmp(&attr1, &attr2, sizeof(perf_event_attr)) == 0;
}
inline bool operator!=(const perf_event_attr& attr1, const perf_event_attr& attr2) {
return !(attr1 == attr2);
}
} // namespace simpleperf
#endif // SIMPLE_PERF_EVENT_ATTR_H_
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