1 /*
2  * Copyright (c) 2016, Google Inc.
3  * All rights reserved.
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "perf_to_profile_lib.h"
9 
10 #include "base/logging.h"
11 #include "perf_data_converter.h"
12 
13 int main(int argc, char** argv) {
14   string input, output;
15   bool overwriteOutput = false;
16   if (!ParseArguments(argc, const_cast<const char**>(argv), &input, &output,
17                       &overwriteOutput)) {
18     PrintUsage();
19     return EXIT_FAILURE;
20   }
21 
22   const auto perf_data = ReadFileToString(input);
23   const auto raw_perf_data = static_cast<const void*>(perf_data.data());
24 
25   const auto profiles = perftools::RawPerfDataToProfiles(
26       raw_perf_data, perf_data.length(), {}, perftools::kNoLabels,
27       perftools::kNoOptions);
28   // With kNoOptions, all of the PID profiles should be merged into a
29   // single one.
30   if (profiles.size() != 1) {
31     LOG(FATAL) << "Expected profile vector to have one element.";
32   }
33   const auto& profile = profiles[0]->data;
34   std::ofstream outFile;
35   CreateFile(output, &outFile, overwriteOutput);
36   profile.SerializeToOstream(&outFile);
37   return EXIT_SUCCESS;
38 }
39