tequilaOS/platform_bionic
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Merge "Add dladdr benchmark."

Browse source
This commit is contained in:
Steven Moreland 2019-10-16 23:41:31 +00:00 committed by Gerrit Code Review
commit 31c4effccc
2 changed files with 40 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
benchmarks/Android.bp
View file

@ -29,6 +29,7 @@ cc_defaults {
"bionic_benchmarks.cpp",
"atomic_benchmark.cpp",
"ctype_benchmark.cpp",
"dlfcn_benchmark.cpp",
"get_heap_size_benchmark.cpp",
"inttypes_benchmark.cpp",
"malloc_benchmark.cpp",

39
benchmarks/dlfcn_benchmark.cpp Normal file
View file

@ -0,0 +1,39 @@
/*
* Copyright (C) 2019 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.
*/
#include <android-base/strings.h>
#include <benchmark/benchmark.h>
#include <dlfcn.h>
#include "util.h"
void local_function() {}
template<typename F>
int bm_dladdr(F fun) {
const void* addr = reinterpret_cast<void*>(fun);
Dl_info info;
int res = dladdr(addr, &info);
if (res == 0) abort();
if (info.dli_fname == nullptr) abort();
// needed for DoNotOptimize
return res;
}
BIONIC_TRIVIAL_BENCHMARK(BM_dladdr_libc_printf, bm_dladdr(printf));
BIONIC_TRIVIAL_BENCHMARK(BM_dladdr_libdl_dladdr, bm_dladdr(dladdr));
BIONIC_TRIVIAL_BENCHMARK(BM_dladdr_local_function, bm_dladdr(local_function));
BIONIC_TRIVIAL_BENCHMARK(BM_dladdr_libbase_split, bm_dladdr(android::base::Split));