2 * Copyright (c) 2023 Samsung Electronics Co., Ltd All Rights Reserved
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #include "launchpad-common/user_tracer.hh"
19 #include <sys/prctl.h>
26 const int PR_TASK_PERF_USER_TRACE = 666;
30 UserTracer::UserTracer(std::string message) : message_(std::move(message)) {
31 Print(message_ + ": BEGIN");
34 UserTracer::~UserTracer() {
35 Print(message_ + ": END");
38 void UserTracer::Print(const std::string& message) {
39 prctl(PR_TASK_PERF_USER_TRACE, message.c_str(), message.length());
42 } // namespace launchpad