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/*
* Copyright (C) 2017 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.
*/
#pragma once
#include <stdint.h>
#include <map>
#include <mutex>
#include <string>
#include <utility>
#include <vector>
typedef void (*benchmark_func_t) (void);
extern std::mutex g_map_lock;
extern std::map<std::string, std::pair<benchmark_func_t, std::string>> g_str_to_func;
static int __attribute__((unused)) EmplaceBenchmark(const std::string& fn_name, benchmark_func_t fn_ptr, const std::string& arg = "") {
g_map_lock.lock();
g_str_to_func.emplace(std::string(fn_name), std::make_pair(fn_ptr, arg));
g_map_lock.unlock();
return 0;
}
#define BIONIC_BENCHMARK(n) \
int _bionic_benchmark_##n __attribute__((unused)) = EmplaceBenchmark(std::string(#n), reinterpret_cast<benchmark_func_t>(n))
#define BIONIC_BENCHMARK_WITH_ARG(n, arg) \
int _bionic_benchmark_##n __attribute__((unused)) = EmplaceBenchmark(std::string(#n), reinterpret_cast<benchmark_func_t>(n), arg)
#define BIONIC_TRIVIAL_BENCHMARK(__name, __expression) \
static void __name(benchmark::State& state) { \
for (auto _ : state) { \
benchmark::DoNotOptimize(__expression); \
} \
} \
BIONIC_BENCHMARK(__name)
constexpr auto KB = 1024;
typedef struct {
int cpu_to_lock = -1;
long num_iterations = 0;
std::string xmlpath;
std::vector<std::string> extra_benchmarks;
} bench_opts_t;
// This function returns a pointer less than 2 * alignment + or_mask bytes into the array.
char* GetAlignedMemory(char* orig_ptr, size_t alignment, size_t or_mask);
char* GetAlignedPtr(std::vector<char>* buf, size_t alignment, size_t nbytes);
wchar_t* GetAlignedPtr(std::vector<wchar_t>* buf, size_t alignment, size_t nbytes);
char* GetAlignedPtrFilled(std::vector<char>* buf, size_t alignment, size_t nbytes, char fill_byte);
bool LockToCPU(int cpu_to_lock);
static __inline __attribute__ ((__always_inline__)) void MakeAllocationResident(
void* ptr, size_t nbytes, int pagesize) {
uint8_t* data = reinterpret_cast<uint8_t*>(ptr);
for (size_t i = 0; i < nbytes; i += pagesize) {
data[i] = 1;
}
}
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