| /* |
| * Copyright (C) 2018 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 "tools/trace_to_text/trace_to_profile.h" |
| |
| #include <random> |
| #include <string> |
| #include <vector> |
| |
| #include "perfetto/trace_processor/trace_processor.h" |
| #include "src/profiling/symbolizer/local_symbolizer.h" |
| #include "src/profiling/symbolizer/symbolize_database.h" |
| #include "tools/trace_to_text/utils.h" |
| |
| #include "perfetto/base/logging.h" |
| #include "perfetto/base/time.h" |
| #include "perfetto/ext/base/file_utils.h" |
| #include "perfetto/ext/base/temp_file.h" |
| #include "perfetto/ext/base/utils.h" |
| #include "perfetto/profiling/pprof_builder.h" |
| #include "src/profiling/symbolizer/symbolizer.h" |
| |
| namespace { |
| constexpr const char* kDefaultTmp = "/tmp"; |
| |
| std::string GetTemp() { |
| const char* tmp = nullptr; |
| if ((tmp = getenv("TMPDIR"))) |
| return tmp; |
| if ((tmp = getenv("TEMP"))) |
| return tmp; |
| return kDefaultTmp; |
| } |
| } // namespace |
| |
| namespace perfetto { |
| namespace trace_to_text { |
| namespace { |
| |
| std::string GetRandomString(size_t n) { |
| std::random_device r; |
| auto rng = std::default_random_engine(r()); |
| std::uniform_int_distribution<char> dist('a', 'z'); |
| std::string result(n, ' '); |
| for (size_t i = 0; i < n; ++i) { |
| result[i] = dist(rng); |
| } |
| return result; |
| } |
| |
| void MaybeSymbolize(trace_processor::TraceProcessor* tp) { |
| std::unique_ptr<profiling::Symbolizer> symbolizer = |
| profiling::LocalSymbolizerOrDie(profiling::GetPerfettoBinaryPath(), |
| getenv("PERFETTO_SYMBOLIZER_MODE")); |
| if (!symbolizer) |
| return; |
| profiling::SymbolizeDatabase(tp, symbolizer.get(), |
| [tp](const std::string& trace_proto) { |
| IngestTraceOrDie(tp, trace_proto); |
| }); |
| tp->NotifyEndOfFile(); |
| } |
| |
| void MaybeDeobfuscate(trace_processor::TraceProcessor* tp) { |
| auto maybe_map = profiling::GetPerfettoProguardMapPath(); |
| if (maybe_map.empty()) { |
| return; |
| } |
| profiling::ReadProguardMapsToDeobfuscationPackets( |
| maybe_map, [tp](const std::string& trace_proto) { |
| IngestTraceOrDie(tp, trace_proto); |
| }); |
| tp->NotifyEndOfFile(); |
| } |
| |
| int TraceToProfile( |
| std::istream* input, |
| std::ostream* output, |
| uint64_t pid, |
| std::vector<uint64_t> timestamps, |
| ConversionMode conversion_mode, |
| std::string dirname_prefix, |
| std::function<std::string(const SerializedProfile&)> filename_fn) { |
| std::vector<SerializedProfile> profiles; |
| trace_processor::Config config; |
| std::unique_ptr<trace_processor::TraceProcessor> tp = |
| trace_processor::TraceProcessor::CreateInstance(config); |
| |
| if (!ReadTrace(tp.get(), input)) |
| return -1; |
| |
| tp->NotifyEndOfFile(); |
| MaybeSymbolize(tp.get()); |
| MaybeDeobfuscate(tp.get()); |
| |
| TraceToPprof(tp.get(), &profiles, conversion_mode, pid, timestamps); |
| if (profiles.empty()) { |
| return 0; |
| } |
| |
| std::string temp_dir = GetTemp() + "/" + dirname_prefix + |
| base::GetTimeFmt("%y%m%d%H%M%S") + GetRandomString(5); |
| PERFETTO_CHECK(base::Mkdir(temp_dir)); |
| for (const auto& profile : profiles) { |
| std::string filename = temp_dir + "/" + filename_fn(profile); |
| base::ScopedFile fd(base::OpenFile(filename, O_CREAT | O_WRONLY, 0700)); |
| if (!fd) |
| PERFETTO_FATAL("Failed to open %s", filename.c_str()); |
| PERFETTO_CHECK(base::WriteAll(*fd, profile.serialized.c_str(), |
| profile.serialized.size()) == |
| static_cast<ssize_t>(profile.serialized.size())); |
| } |
| *output << "Wrote profiles to " << temp_dir << std::endl; |
| return 0; |
| } |
| |
| } // namespace |
| |
| int TraceToHeapProfile(std::istream* input, |
| std::ostream* output, |
| uint64_t pid, |
| std::vector<uint64_t> timestamps) { |
| int file_idx = 0; |
| auto filename_fn = [&file_idx](const SerializedProfile& profile) { |
| return "heap_dump." + std::to_string(++file_idx) + "." + |
| std::to_string(profile.pid) + "." + profile.heap_name + ".pb"; |
| }; |
| |
| return TraceToProfile(input, output, pid, timestamps, |
| ConversionMode::kHeapProfile, "heap_profile-", |
| filename_fn); |
| } |
| |
| int TraceToPerfProfile(std::istream* input, |
| std::ostream* output, |
| uint64_t pid, |
| std::vector<uint64_t> timestamps) { |
| int file_idx = 0; |
| auto filename_fn = [&file_idx](const SerializedProfile& profile) { |
| return "profile." + std::to_string(++file_idx) + ".pid." + |
| std::to_string(profile.pid) + ".pb"; |
| }; |
| |
| return TraceToProfile(input, output, pid, timestamps, |
| ConversionMode::kPerfProfile, "perf_profile-", |
| filename_fn); |
| } |
| |
| } // namespace trace_to_text |
| } // namespace perfetto |