| #!/usr/bin/env python3 |
| # 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. |
| |
| # This synthetic trace tests a process which forks and then execs. |
| |
| from os import sys, path |
| |
| from synth_common import CLONE_THREAD |
| import synth_common |
| |
| trace = synth_common.create_trace() |
| |
| # Create a parent process which will be forked below. |
| trace.add_packet(ts=1) |
| trace.add_process(10, 0, "parent") |
| |
| # Fork off the new process and then kill it 5ns later. |
| trace.add_ftrace_packet(0) |
| trace.add_newtask(ts=15, tid=10, new_tid=11, new_comm='child', flags=0) |
| trace.add_sched(ts=16, prev_pid=10, next_pid=11, next_comm='child') |
| |
| # Create a parent process which will be forked below. |
| trace.add_packet(ts=20) |
| trace.add_process(11, 0, "child_process") |
| |
| trace.add_ftrace_packet(0) |
| trace.add_rename( |
| ts=25, tid=11, old_comm='child', new_comm='true_name', oom_score_adj=1000) |
| |
| # Create a parent process which will be forked below. |
| trace.add_packet(ts=30) |
| trace.add_process(11, 10, "true_process_name") |
| |
| sys.stdout.buffer.write(trace.trace.SerializeToString()) |
