Primiano Tucci | 50446cb | 2020-02-14 10:40:23 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2020 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef SRC_TRACE_PROCESSOR_IMPORTERS_NINJA_NINJA_LOG_PARSER_H_ |
| 18 | #define SRC_TRACE_PROCESSOR_IMPORTERS_NINJA_NINJA_LOG_PARSER_H_ |
| 19 | |
| 20 | #include <stdint.h> |
| 21 | |
| 22 | #include <map> |
| 23 | #include <string> |
Lalit Maganti | d1a7b03 | 2021-04-23 14:46:57 +0100 | [diff] [blame] | 24 | #include <vector> |
Primiano Tucci | 50446cb | 2020-02-14 10:40:23 +0000 | [diff] [blame] | 25 | |
Lalit Maganti | 1534bb7 | 2021-04-23 14:11:26 +0100 | [diff] [blame] | 26 | #include "src/trace_processor/importers/common/chunked_trace_reader.h" |
Lalit Maganti | d1a7b03 | 2021-04-23 14:46:57 +0100 | [diff] [blame] | 27 | #include "src/trace_processor/importers/common/trace_parser.h" |
Primiano Tucci | 50446cb | 2020-02-14 10:40:23 +0000 | [diff] [blame] | 28 | |
| 29 | namespace perfetto { |
| 30 | namespace trace_processor { |
| 31 | |
| 32 | class TraceProcessorContext; |
| 33 | |
| 34 | // This class parses Ninja's (the build system, ninja-build.org) build logs and |
| 35 | // turns them into traces. A ninja log typically contains the logs of >1 ninja |
| 36 | // invocation. We map those as follows: |
| 37 | // - For each ninja invocation we create one process in the trace (from the UI |
| 38 | // perspective a process is a group of tracks). |
| 39 | // - Within each invocation we work out the parallelism from the time stamp and |
| 40 | // create one thread for each concurent stream of jobs. |
| 41 | // Caveat: this works only if ninja didn't recompact the logs. Once recompaction |
| 42 | // happens (can be forced via ninja -t recompact) there is no way to identify |
| 43 | // the boundaries of each build (recompaction deletes, for each hash, all but |
| 44 | // the most recent timestamp and rewrites the log). |
| 45 | class NinjaLogParser : public ChunkedTraceReader { |
| 46 | public: |
| 47 | explicit NinjaLogParser(TraceProcessorContext*); |
| 48 | ~NinjaLogParser() override; |
| 49 | NinjaLogParser(const NinjaLogParser&) = delete; |
| 50 | NinjaLogParser& operator=(const NinjaLogParser&) = delete; |
| 51 | |
| 52 | // ChunkedTraceReader implementation |
| 53 | util::Status Parse(std::unique_ptr<uint8_t[]>, size_t) override; |
| 54 | void NotifyEndOfFile() override; |
| 55 | |
| 56 | private: |
| 57 | struct Job { |
| 58 | Job(uint32_t b, int64_t s, int64_t e, uint64_t h, const std::string& n) |
| 59 | : build_id(b), start_ms(s), end_ms(e), hash(h), names(n) {} |
| 60 | |
| 61 | uint32_t build_id; // The synthesized PID of the build "process". |
| 62 | int64_t start_ms; |
| 63 | int64_t end_ms; |
| 64 | uint64_t hash; // Hash of the compiler invocation cmdline. |
| 65 | |
| 66 | // Typically the one output for the compiler invocation. In case of actions |
| 67 | // generating multiple outputs this contains the join of all output names. |
| 68 | std::string names; |
| 69 | }; |
| 70 | |
| 71 | TraceProcessorContext* const ctx_; |
| 72 | bool header_parsed_ = false; |
| 73 | int64_t last_end_seen_ = 0; |
| 74 | uint32_t cur_build_id_ = 0; |
| 75 | std::vector<Job> jobs_; |
| 76 | std::vector<char> log_; |
| 77 | }; |
| 78 | |
| 79 | } // namespace trace_processor |
| 80 | } // namespace perfetto |
| 81 | |
| 82 | #endif // SRC_TRACE_PROCESSOR_IMPORTERS_NINJA_NINJA_LOG_PARSER_H_ |