84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SIMPLE_PERF_ENVIRONMENT_H_
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#define SIMPLE_PERF_ENVIRONMENT_H_
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#include <sys/types.h>
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#include <functional>
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#include <set>
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#include <string>
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#include <vector>
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#include "build_id.h"
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std::vector<int> GetOnlineCpus();
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std::vector<int> GetCpusFromString(const std::string& s);
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constexpr char DEFAULT_KERNEL_MMAP_NAME[] = "[kernel.kallsyms]_text";
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struct KernelMmap {
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std::string name;
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uint64_t start_addr;
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uint64_t len;
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std::string filepath;
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};
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void GetKernelAndModuleMmaps(KernelMmap* kernel_mmap, std::vector<KernelMmap>* module_mmaps);
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struct ThreadComm {
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pid_t pid, tid;
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std::string comm;
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};
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bool GetThreadComms(std::vector<ThreadComm>* thread_comms);
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constexpr char DEFAULT_EXECNAME_FOR_THREAD_MMAP[] = "//anon";
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struct ThreadMmap {
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uint64_t start_addr;
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uint64_t len;
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uint64_t pgoff;
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std::string name;
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bool executable;
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};
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bool GetThreadMmapsInProcess(pid_t pid, std::vector<ThreadMmap>* thread_mmaps);
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constexpr char DEFAULT_KERNEL_FILENAME_FOR_BUILD_ID[] = "[kernel.kallsyms]";
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bool GetKernelBuildId(BuildId* build_id);
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bool GetModuleBuildId(const std::string& module_name, BuildId* build_id);
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bool GetValidThreadsFromProcessString(const std::string& pid_str, std::set<pid_t>* tid_set);
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bool GetValidThreadsFromThreadString(const std::string& tid_str, std::set<pid_t>* tid_set);
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bool GetExecPath(std::string* exec_path);
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// Expose the following functions for unit tests.
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struct KernelSymbol {
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uint64_t addr;
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char type;
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const char* name;
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const char* module; // If nullptr, the symbol is not in a kernel module.
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};
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bool ProcessKernelSymbols(const std::string& symbol_file,
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std::function<bool(const KernelSymbol&)> callback);
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bool CheckPerfEventLimit();
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#endif // SIMPLE_PERF_ENVIRONMENT_H_
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