1 /*
2 * Copyright (C) 2019 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 #include "src/trace_processor/importers/ftrace/ftrace_module_impl.h"
18 #include "perfetto/base/build_config.h"
19 #include "perfetto/trace_processor/trace_blob_view.h"
20 #include "src/trace_processor/importers/ftrace/ftrace_parser.h"
21 #include "src/trace_processor/importers/ftrace/ftrace_tokenizer.h"
22
23 #include "protos/perfetto/trace/trace_packet.pbzero.h"
24
25 namespace perfetto {
26 namespace trace_processor {
27
28 using perfetto::protos::pbzero::TracePacket;
29
FtraceModuleImpl(TraceProcessorContext * context)30 FtraceModuleImpl::FtraceModuleImpl(TraceProcessorContext* context)
31 : tokenizer_(context), parser_(context) {
32 RegisterForField(TracePacket::kFtraceEventsFieldNumber, context);
33 RegisterForField(TracePacket::kFtraceStatsFieldNumber, context);
34 }
35
TokenizePacket(const protos::pbzero::TracePacket::Decoder & decoder,TraceBlobView * packet,int64_t,PacketSequenceState * seq_state,uint32_t field_id)36 ModuleResult FtraceModuleImpl::TokenizePacket(
37 const protos::pbzero::TracePacket::Decoder& decoder,
38 TraceBlobView* packet,
39 int64_t /*packet_timestamp*/,
40 PacketSequenceState* seq_state,
41 uint32_t field_id) {
42 switch (field_id) {
43 case TracePacket::kFtraceEventsFieldNumber: {
44 auto ftrace_field = decoder.ftrace_events();
45 return tokenizer_.TokenizeFtraceBundle(
46 packet->slice(ftrace_field.data, ftrace_field.size), seq_state,
47 decoder.trusted_packet_sequence_id());
48 }
49 case TracePacket::kFtraceStatsFieldNumber: {
50 parser_.ParseFtraceStats(decoder.ftrace_stats(),
51 decoder.trusted_packet_sequence_id());
52 return ModuleResult::Handled();
53 }
54 }
55 return ModuleResult::Ignored();
56 }
57
58 } // namespace trace_processor
59 } // namespace perfetto
60