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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_ENVIRONMENT_H_
#define SIMPLE_PERF_ENVIRONMENT_H_
#include <sys/types.h>
#include <time.h>
#if defined(__linux__)
#include <sys/syscall.h>
#include <unistd.h>
#endif
#include <functional>
#include <set>
#include <string>
#include <vector>
#include "build_id.h"
#include "perf_regs.h"
std::vector<int> GetOnlineCpus();
std::vector<int> GetCpusFromString(const std::string& s);
struct KernelMmap {
std::string name;
uint64_t start_addr;
uint64_t len;
std::string filepath;
};
void GetKernelAndModuleMmaps(KernelMmap* kernel_mmap, std::vector<KernelMmap>* module_mmaps);
struct ThreadMmap {
uint64_t start_addr;
uint64_t len;
uint64_t pgoff;
std::string name;
bool executable;
};
bool GetThreadMmapsInProcess(pid_t pid, std::vector<ThreadMmap>* thread_mmaps);
constexpr char DEFAULT_KERNEL_FILENAME_FOR_BUILD_ID[] = "[kernel.kallsyms]";
bool GetKernelBuildId(BuildId* build_id);
bool GetModuleBuildId(const std::string& module_name, BuildId* build_id);
bool IsThreadAlive(pid_t tid);
std::vector<pid_t> GetAllProcesses();
std::vector<pid_t> GetThreadsInProcess(pid_t pid);
bool GetProcessForThread(pid_t tid, pid_t* pid);
bool GetThreadName(pid_t tid, std::string* name);
bool GetValidThreadsFromThreadString(const std::string& tid_str, std::set<pid_t>* tid_set);
bool CheckPerfEventLimit();
bool GetMaxSampleFrequency(uint64_t* max_sample_freq);
bool CheckSampleFrequency(uint64_t sample_freq);
bool CheckKernelSymbolAddresses();
#if defined(__linux__)
static inline uint64_t GetSystemClock() {
timespec ts;
// Assume clock_gettime() doesn't fail.
clock_gettime(CLOCK_MONOTONIC, &ts);
return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
}
#if !defined(__ANDROID__)
static inline int gettid() {
return syscall(__NR_gettid);
}
#endif
#endif
ArchType GetMachineArch();
void PrepareVdsoFile();
int WaitForAppProcess(const std::string& package_name);
bool RunInAppContext(const std::string& app_package_name, const std::string& cmd,
const std::vector<std::string>& args, size_t workload_args_size,
const std::string& output_filepath);
// Below two functions are only used in cts tests, to force stat/record cmd to run in app's context.
void SetDefaultAppPackageName(const std::string& package_name);
const std::string& GetDefaultAppPackageName();
#endif // SIMPLE_PERF_ENVIRONMENT_H_
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