ftrace_tokenizer.cc | Explore in Territory

/*
 * Copyright (C) 2019 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 "src/trace_processor/importers/ftrace/ftrace_tokenizer.h"

#include "perfetto/base/logging.h"
#include "perfetto/base/status.h"
#include "perfetto/protozero/proto_decoder.h"
#include "perfetto/protozero/proto_utils.h"
#include "perfetto/trace_processor/basic_types.h"
#include "src/trace_processor/importers/common/machine_tracker.h"
#include "src/trace_processor/importers/common/metadata_tracker.h"
#include "src/trace_processor/sorter/trace_sorter.h"
#include "src/trace_processor/storage/metadata.h"
#include "src/trace_processor/storage/stats.h"
#include "src/trace_processor/storage/trace_storage.h"
#include "src/trace_processor/types/variadic.h"
#include "src/trace_processor/util/status_macros.h"

#include "protos/perfetto/common/builtin_clock.pbzero.h"
#include "protos/perfetto/trace/ftrace/ftrace_event.pbzero.h"
#include "protos/perfetto/trace/ftrace/ftrace_event_bundle.pbzero.h"
#include "protos/perfetto/trace/ftrace/power.pbzero.h"
#include "protos/perfetto/trace/ftrace/thermal_exynos.pbzero.h"

namespace perfetto {
namespace trace_processor {

ProtoDecoder;
MakeTagVarInt;
ParseVarInt;

BuiltinClock;
FtraceClock;
FtraceEventBundle;

namespace {

static constexpr uint32_t kFtraceGlobalClockIdForOldKernels = …;

PERFETTO_ALWAYS_INLINE base::StatusOr<int64_t> ResolveTraceTime(
    TraceProcessorContext* context,
    ClockTracker::ClockId clock_id,
    int64_t ts) { … }

// Fast path for parsing the event id of an ftrace event.
// Speculate on the fact that, if the timestamp was found, the common pid
// will appear immediately after and the event id immediately after that.
uint64_t TryFastParseFtraceEventId(const uint8_t* start, const uint8_t* end) { … }

}  // namespace

PERFETTO_ALWAYS_INLINE
base::Status FtraceTokenizer::TokenizeFtraceBundle(
    TraceBlobView bundle,
    RefPtr<PacketSequenceStateGeneration> state,
    uint32_t packet_sequence_id) { … }

PERFETTO_ALWAYS_INLINE
void FtraceTokenizer::TokenizeFtraceEvent(
    uint32_t cpu,
    ClockTracker::ClockId clock_id,
    TraceBlobView event,
    RefPtr<PacketSequenceStateGeneration> state) { … }

PERFETTO_ALWAYS_INLINE
void FtraceTokenizer::TokenizeFtraceCompactSched(uint32_t cpu,
                                                 ClockTracker::ClockId clock_id,
                                                 protozero::ConstBytes packet) { … }

void FtraceTokenizer::TokenizeFtraceCompactSchedSwitch(
    uint32_t cpu,
    ClockTracker::ClockId clock_id,
    const FtraceEventBundle::CompactSched::Decoder& compact,
    const std::vector<StringId>& string_table) { … }

void FtraceTokenizer::TokenizeFtraceCompactSchedWaking(
    uint32_t cpu,
    ClockTracker::ClockId clock_id,
    const FtraceEventBundle::CompactSched::Decoder& compact,
    const std::vector<StringId>& string_table) { … }

void FtraceTokenizer::HandleFtraceClockSnapshot(int64_t ftrace_ts,
                                                int64_t boot_ts,
                                                uint32_t packet_sequence_id) { … }

void FtraceTokenizer::TokenizeFtraceGpuWorkPeriod(
    uint32_t cpu,
    TraceBlobView event,
    RefPtr<PacketSequenceStateGeneration> state) { … }

void FtraceTokenizer::TokenizeFtraceThermalExynosAcpmBulk(
    uint32_t cpu,
    TraceBlobView event,
    RefPtr<PacketSequenceStateGeneration> state) { … }

}  // namespace trace_processor
}  // namespace perfetto
chromium/third_party/perfetto/src/trace_processor/importers/ftrace/ftrace_tokenizer.cc
