| /* |
| * 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_H_ |
| #define SIMPLE_PERF_EVENT_H_ |
| |
| #include <stdint.h> |
| #include <strings.h> |
| #include <memory> |
| #include <set> |
| #include <string> |
| #include <vector> |
| |
| namespace simpleperf { |
| |
| inline const std::string kETMEventName = "cs-etm"; |
| |
| // EventType represents one type of event, like cpu_cycle_event, cache_misses_event. |
| // The user knows one event type by its name, and the kernel knows one event type by its |
| // (type, config) pair. EventType connects the two representations, and tells the user if |
| // the event type is supported by the kernel. |
| |
| struct EventType { |
| EventType(const std::string& name, uint32_t type, uint64_t config, const std::string& description, |
| const std::string& limited_arch) |
| : name(name), |
| type(type), |
| config(config), |
| description(description), |
| limited_arch(limited_arch) {} |
| |
| EventType() : type(0), config(0) {} |
| |
| bool operator<(const EventType& other) const { |
| return strcasecmp(name.c_str(), other.name.c_str()) < 0; |
| } |
| |
| bool IsPmuEvent() const { return name.find('/') != std::string::npos; } |
| bool IsEtmEvent() const { return name == kETMEventName; } |
| |
| std::vector<int> GetPmuCpumask(); |
| |
| std::string name; |
| uint32_t type; |
| uint64_t config; |
| std::string description; |
| std::string limited_arch; |
| }; |
| |
| // Used to temporarily change event types returned by GetAllEventTypes(). |
| class ScopedEventTypes { |
| public: |
| static std::string BuildString(const std::vector<const EventType*>& event_types); |
| |
| ScopedEventTypes(const std::string& event_type_str); |
| ~ScopedEventTypes(); |
| }; |
| |
| struct EventTypeAndModifier { |
| std::string name; |
| EventType event_type; |
| std::string modifier; |
| bool exclude_user; |
| bool exclude_kernel; |
| bool exclude_hv; |
| bool exclude_host; |
| bool exclude_guest; |
| int precise_ip : 2; |
| |
| EventTypeAndModifier() |
| : exclude_user(false), |
| exclude_kernel(false), |
| exclude_hv(false), |
| exclude_host(false), |
| exclude_guest(false), |
| precise_ip(0) {} |
| }; |
| |
| enum class EventFinderType; |
| class EventTypeFinder; |
| class RawTypeFinder; |
| class TracepointSystemFinder; |
| |
| class EventTypeManager { |
| public: |
| static EventTypeManager& Instance() { return instance_; } |
| ~EventTypeManager(); |
| |
| bool ReadTracepointsFromFile(const std::string& filepath); |
| bool WriteTracepointsToFile(const std::string& filepath); |
| |
| // Iterate through all event types, and stop when callback returns false. |
| bool ForEachType(const std::function<bool(const EventType&)>& callback); |
| const EventType* FindType(const std::string& name); |
| const EventType* AddRawType(const std::string& name); |
| void RemoveProbeType(const std::string& name); |
| const EventTypeFinder* GetScopedFinder() { return scoped_finder_.get(); } |
| void SetScopedFinder(std::unique_ptr<EventTypeFinder>&& finder); |
| |
| private: |
| EventTypeManager(); |
| std::unique_ptr<EventTypeFinder>& GetFinder(EventFinderType type); |
| RawTypeFinder& GetRawTypeFinder(); |
| TracepointSystemFinder& GetTracepointSystemFinder(); |
| |
| static EventTypeManager instance_; |
| |
| std::vector<std::unique_ptr<EventTypeFinder>> type_finders_; |
| std::unique_ptr<EventTypeFinder> scoped_finder_; |
| }; |
| |
| const EventType* FindEventTypeByName(const std::string& name, bool report_error = true); |
| std::unique_ptr<EventTypeAndModifier> ParseEventType(const std::string& event_type_str); |
| bool IsEtmEventType(uint32_t type); |
| |
| } // namespace simpleperf |
| |
| #endif // SIMPLE_PERF_EVENT_H_ |