1 /* 2 * Copyright (C) 2024 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_PROTO_V8_MODULE_H_ 18 #define SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_V8_MODULE_H_ 19 20 #include <cstdint> 21 #include <optional> 22 23 #include "perfetto/ext/base/flat_hash_map.h" 24 #include "perfetto/protozero/field.h" 25 #include "src/trace_processor/importers/proto/packet_sequence_state_generation.h" 26 #include "src/trace_processor/importers/proto/proto_importer_module.h" 27 #include "src/trace_processor/storage/trace_storage.h" 28 #include "src/trace_processor/tables/v8_tables_py.h" 29 30 namespace perfetto { 31 namespace protos { 32 namespace pbzero { 33 class TracePacket_Decoder; 34 } 35 } // namespace protos 36 namespace trace_processor { 37 38 class PacketSequenceState; 39 struct TracePacketData; 40 class V8Tracker; 41 42 // Populates v8 related tables. 43 // 44 // This class processes v8 related trace packets and populates the various 45 // tables. In particular it keeps track of v8 Isolates and what code and 46 // associated debug information has been loaded in each of the isolates. 47 class V8Module : public ProtoImporterModule { 48 public: 49 explicit V8Module(TraceProcessorContext* context); 50 51 ~V8Module() override; 52 53 ModuleResult TokenizePacket( 54 const protos::pbzero::TracePacket_Decoder& decoder, 55 TraceBlobView* packet, 56 int64_t packet_timestamp, 57 RefPtr<PacketSequenceStateGeneration> state, 58 uint32_t field_id) override; 59 60 void ParseTracePacketData(const protos::pbzero::TracePacket_Decoder&, 61 int64_t ts, 62 const TracePacketData& packet_data, 63 uint32_t field_id) override; 64 65 private: 66 void ParseV8JsCode(protozero::ConstBytes bytes, 67 int64_t ts, 68 const TracePacketData& data); 69 void ParseV8InternalCode(protozero::ConstBytes bytes, 70 int64_t ts, 71 const TracePacketData& data); 72 void ParseV8WasmCode(protozero::ConstBytes bytes, 73 int64_t ts, 74 const TracePacketData& data); 75 void ParseV8RegExpCode(protozero::ConstBytes bytes, 76 int64_t ts, 77 const TracePacketData& data); 78 void ParseV8CodeMove(protozero::ConstBytes bytes, 79 int64_t ts, 80 const TracePacketData& data); 81 82 // Determine the utid for a code event. 83 // If the passed in decoder has no tid field this method will try the 84 // TracePacketDefaults. 85 template <typename CodeDecoder> 86 std::optional<UniqueTid> GetUtid(PacketSequenceStateGeneration& generation, 87 tables::V8IsolateTable::Id isolate_id, 88 const CodeDecoder& code); 89 std::optional<uint32_t> GetDefaultTid( 90 PacketSequenceStateGeneration& generation) const; 91 TraceProcessorContext* const context_; 92 V8Tracker* const v8_tracker_; 93 // Caches isolate to pid associations. Used to compute the utid for code 94 // events. 95 base::FlatHashMap<tables::V8IsolateTable::Id, uint32_t> isolate_to_pid_; 96 }; 97 98 } // namespace trace_processor 99 } // namespace perfetto 100 101 #endif // SRC_TRACE_PROCESSOR_IMPORTERS_PROTO_V8_MODULE_H_ 102