1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
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
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
15 */
16
17 #include <stdio.h>
18 #include <string>
19 #include <vector>
20
21 #include <base/logging.h>
22
23 #include "command.h"
24 #include "event_type.h"
25 #include "perf_event.h"
26
PrintEventTypesOfType(uint32_t type,const char * type_name,const std::vector<const EventType> & event_types)27 static void PrintEventTypesOfType(uint32_t type, const char* type_name,
28 const std::vector<const EventType>& event_types) {
29 printf("List of %s:\n", type_name);
30 for (auto& event_type : event_types) {
31 if (event_type.type == type && event_type.IsSupportedByKernel()) {
32 printf(" %s\n", event_type.name);
33 }
34 }
35 printf("\n");
36 }
37
38 class ListCommand : public Command {
39 public:
ListCommand()40 ListCommand()
41 : Command("list", "list all available perf events",
42 "Usage: simpleperf list\n"
43 " List all available perf events on this machine.\n") {
44 }
45
46 bool Run(const std::vector<std::string>& args) override;
47 };
48
Run(const std::vector<std::string> & args)49 bool ListCommand::Run(const std::vector<std::string>& args) {
50 if (args.size() != 1) {
51 LOG(ERROR) << "malformed command line: list subcommand needs no argument";
52 LOG(ERROR) << "try using \"help list\"";
53 return false;
54 }
55 auto& event_types = EventTypeFactory::GetAllEventTypes();
56
57 PrintEventTypesOfType(PERF_TYPE_HARDWARE, "hardware events", event_types);
58 PrintEventTypesOfType(PERF_TYPE_SOFTWARE, "software events", event_types);
59 PrintEventTypesOfType(PERF_TYPE_HW_CACHE, "hw-cache events", event_types);
60 return true;
61 }
62
63 ListCommand list_command;
64