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/*
* 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 "src/perfetto_cmd/config.h"
#include <stdlib.h>
#include "perfetto/base/logging.h"
#include "perfetto/ext/base/string_utils.h"
#include "perfetto/tracing/core/data_source_config.h"
#include "perfetto/tracing/core/trace_config.h"
#include "protos/perfetto/config/ftrace/ftrace_config.gen.h"
namespace perfetto {
namespace {
using ValueUnit = std::pair<uint64_t, std::string>;
using UnitMultipler = std::pair<const char*, uint64_t>;
bool SplitValueAndUnit(const std::string& arg, ValueUnit* out) {
char* end;
if (arg.empty())
return false;
out->first = strtoull(arg.c_str(), &end, 10);
if (end == arg.data())
return false;
std::string unit = arg.substr(static_cast<size_t>(end - arg.data()));
out->second = std::move(unit);
return true;
}
bool ConvertValue(const std::string& arg,
std::vector<UnitMultipler> units,
uint64_t* out) {
if (arg.empty()) {
*out = 0;
return true;
}
if (arg == "0") {
*out = 0;
return true;
}
ValueUnit value_unit{};
if (!SplitValueAndUnit(arg, &value_unit))
return false;
for (const auto& unit_multiplier : units) {
if (value_unit.second != unit_multiplier.first)
continue;
*out = value_unit.first * unit_multiplier.second;
return true;
}
return false;
}
bool ConvertTimeToMs(const std::string& arg, uint64_t* out) {
return ConvertValue(
arg,
{
{"ms", 1}, {"s", 1000}, {"m", 1000 * 60}, {"h", 1000 * 60 * 60},
},
out);
}
bool ConvertSizeToKb(const std::string& arg, uint64_t* out) {
return ConvertValue(arg,
{
{"kb", 1},
{"mb", 1024},
{"gb", 1024 * 1024},
{"k", 1},
{"m", 1024},
{"g", 1024 * 1024},
},
out);
}
} // namespace
bool CreateConfigFromOptions(const ConfigOptions& options,
TraceConfig* config) {
uint64_t duration_ms = 0;
if (!ConvertTimeToMs(options.time, &duration_ms)) {
PERFETTO_ELOG("--time argument is invalid");
return false;
}
uint64_t buffer_size_kb = 0;
if (!ConvertSizeToKb(options.buffer_size, &buffer_size_kb)) {
PERFETTO_ELOG("--buffer argument is invalid");
return false;
}
uint64_t max_file_size_kb = 0;
if (!ConvertSizeToKb(options.max_file_size, &max_file_size_kb)) {
PERFETTO_ELOG("--size argument is invalid");
return false;
}
std::vector<std::string> ftrace_events;
std::vector<std::string> atrace_categories;
std::vector<std::string> atrace_apps = options.atrace_apps;
for (const auto& category : options.categories) {
if (base::Contains(category, '/')) {
ftrace_events.push_back(category);
} else {
atrace_categories.push_back(category);
}
// For the gfx category, also add the frame timeline data source
// as it's very useful for debugging gfx issues.
if (category == "gfx") {
auto* frame_timeline = config->add_data_sources();
frame_timeline->mutable_config()->set_name(
"android.surfaceflinger.frametimeline");
}
}
config->set_duration_ms(static_cast<unsigned int>(duration_ms));
config->set_max_file_size_bytes(max_file_size_kb * 1024);
config->set_flush_period_ms(30 * 1000);
if (max_file_size_kb)
config->set_write_into_file(true);
config->add_buffers()->set_size_kb(static_cast<unsigned int>(buffer_size_kb));
auto* ds_config = config->add_data_sources()->mutable_config();
ds_config->set_name("linux.ftrace");
protos::gen::FtraceConfig ftrace_cfg;
for (const auto& evt : ftrace_events)
ftrace_cfg.add_ftrace_events(evt);
for (const auto& cat : atrace_categories)
ftrace_cfg.add_atrace_categories(cat);
for (const auto& app : atrace_apps)
ftrace_cfg.add_atrace_apps(app);
ds_config->set_ftrace_config_raw(ftrace_cfg.SerializeAsString());
auto* ps_config = config->add_data_sources()->mutable_config();
ps_config->set_name("linux.process_stats");
ps_config->set_target_buffer(0);
return true;
}
} // namespace perfetto
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