+/*
+ * Copyright 2016 Facebook, Inc.
+ *
+ * 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 <folly/Benchmark.h>
+#include <folly/experimental/symbolizer/Dwarf.h>
+#include <gflags/gflags.h>
+
+void dummy() {}
+
+BENCHMARK(DwarfFindAddress, n) {
+ folly::BenchmarkSuspender suspender;
+ using namespace folly::symbolizer;
+ // NOTE: Using '/proc/self/exe' only works if the code for @dummy is
+ // statically linked into the binary.
+ ElfFile elf("/proc/self/exe");
+ Dwarf dwarf(&elf);
+ suspender.dismiss();
+ for (size_t i = 0; i < n; i++) {
+ Dwarf::LocationInfo info;
+ dwarf.findAddress(uintptr_t(&dummy), info);
+ }
+}
+
+int main(int argc, char* argv[]) {
+ gflags::ParseCommandLineFlags(&argc, &argv, true);
+ google::InitGoogleLogging(argv[0]);
+ folly::runBenchmarksOnFlag();
+ return 0;
+}