2 * Copyright (C) 2015 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include "event_type.h"
23 #include <base/logging.h>
25 #include "event_attr.h"
28 #define EVENT_TYPE_TABLE_ENTRY(name, type, config) \
29 { name, type, config } \
32 static std::vector<const EventType> event_type_array = {
33 #include "event_type_table.h"
36 static bool IsEventTypeSupportedByKernel(const EventType& event_type) {
37 auto event_fd = EventFd::OpenEventFileForProcess(CreateDefaultPerfEventAttr(event_type), getpid());
38 return event_fd != nullptr;
41 bool EventType::IsSupportedByKernel() const {
42 return IsEventTypeSupportedByKernel(*this);
45 const std::vector<const EventType>& EventTypeFactory::GetAllEventTypes() {
46 return event_type_array;
49 const EventType* EventTypeFactory::FindEventTypeByName(const std::string& name,
50 bool report_unsupported_type) {
51 const EventType* result = nullptr;
52 for (auto& event_type : event_type_array) {
53 if (event_type.name == name) {
58 if (result == nullptr) {
59 LOG(ERROR) << "Unknown event_type '" << name
60 << "', try `simpleperf list` to list all possible event type names";
63 if (!result->IsSupportedByKernel()) {
64 (report_unsupported_type ? PLOG(ERROR) : PLOG(DEBUG)) << "Event type '" << result->name
65 << "' is not supported by the kernel";
71 const EventType* EventTypeFactory::FindEventTypeByConfig(uint32_t type, uint64_t config) {
72 for (auto& event_type : event_type_array) {
73 if (event_type.type == type && event_type.config == config) {