1 /* 2 * Copyright (C) 2017 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 #pragma once 18 19 #include <map> 20 #include <mutex> 21 #include <string> 22 #include <utility> 23 #include <vector> 24 25 typedef void (*benchmark_func_t) (void); 26 27 extern std::mutex g_map_lock; 28 29 extern std::map<std::string, std::pair<benchmark_func_t, std::string>> g_str_to_func; 30 31 static int __attribute__((unused)) EmplaceBenchmark(const std::string& fn_name, benchmark_func_t fn_ptr, const std::string& arg = "") { 32 g_map_lock.lock(); 33 g_str_to_func.emplace(std::string(fn_name), std::make_pair(fn_ptr, arg)); 34 g_map_lock.unlock(); 35 return 0; 36 } 37 38 #define BIONIC_BENCHMARK(n) \ 39 int _bionic_benchmark_##n __attribute__((unused)) = EmplaceBenchmark(std::string(#n), reinterpret_cast<benchmark_func_t>(n)) 40 41 #define BIONIC_BENCHMARK_WITH_ARG(n, arg) \ 42 int _bionic_benchmark_##n __attribute__((unused)) = EmplaceBenchmark(std::string(#n), reinterpret_cast<benchmark_func_t>(n), arg) 43 44 45 constexpr auto KB = 1024; 46 47 typedef struct { 48 int cpu_to_lock = -1; 49 long num_iterations = 0; 50 std::string xmlpath; 51 std::vector<std::string> extra_benchmarks; 52 } bench_opts_t; 53 54 // This function returns a pointer less than 2 * alignment + or_mask bytes into the array. 55 char* GetAlignedMemory(char* orig_ptr, size_t alignment, size_t or_mask); 56 57 char* GetAlignedPtr(std::vector<char>* buf, size_t alignment, size_t nbytes); 58 59 wchar_t* GetAlignedPtr(std::vector<wchar_t>* buf, size_t alignment, size_t nbytes); 60 61 char* GetAlignedPtrFilled(std::vector<char>* buf, size_t alignment, size_t nbytes, char fill_byte); 62 63 bool LockToCPU(int cpu_to_lock); 64
