environment.h revision 767dd17947f1ae9dd3d02f738d442a23ed76f2f6 
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#ifndef SIMPLE_PERF_ENVIRONMENT_H_
18#define SIMPLE_PERF_ENVIRONMENT_H_
19
20#include <sys/types.h>
21
22#include <functional>
23#include <set>
24#include <string>
25#include <vector>
26
27#include "build_id.h"
28
29std::vector<int> GetOnlineCpus();
30std::vector<int> GetCpusFromString(const std::string& s);
31
32constexpr char DEFAULT_KERNEL_MMAP_NAME[] = "[kernel.kallsyms]";
33
34struct KernelMmap {
35  std::string name;
36  uint64_t start_addr;
37  uint64_t len;
38  std::string filepath;
39};
40
41void GetKernelAndModuleMmaps(KernelMmap* kernel_mmap, std::vector<KernelMmap>* module_mmaps);
42
43struct ThreadComm {
44  pid_t pid, tid;
45  std::string comm;
46};
47
48bool GetThreadComms(std::vector<ThreadComm>* thread_comms);
49
50constexpr char DEFAULT_EXECNAME_FOR_THREAD_MMAP[] = "//anon";
51
52struct ThreadMmap {
53  uint64_t start_addr;
54  uint64_t len;
55  uint64_t pgoff;
56  std::string name;
57  bool executable;
58};
59
60bool GetThreadMmapsInProcess(pid_t pid, std::vector<ThreadMmap>* thread_mmaps);
61
62constexpr char DEFAULT_KERNEL_FILENAME_FOR_BUILD_ID[] = "[kernel.kallsyms]";
63
64bool GetKernelBuildId(BuildId* build_id);
65bool GetModuleBuildId(const std::string& module_name, BuildId* build_id);
66
67bool GetValidThreadsFromProcessString(const std::string& pid_str, std::set<pid_t>* tid_set);
68bool GetValidThreadsFromThreadString(const std::string& tid_str, std::set<pid_t>* tid_set);
69
70bool GetExecPath(std::string* exec_path);
71
72bool CheckPerfEventLimit();
73
74#endif  // SIMPLE_PERF_ENVIRONMENT_H_
75