1#!/usr/bin/python 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# This synthetic trace tests a multi-threaded process which forks in one of the 17# non-main threads when the tgid for that thread is not known but resolved 18# later. 19 20from os import sys, path 21 22sys.path.append(path.dirname(path.dirname(path.abspath(__file__)))) 23from synth_common import CLONE_THREAD 24import synth_common 25 26trace = synth_common.create_trace() 27 28# Fork off the new process from the worker thread. 29trace.add_ftrace_packet(0) 30trace.add_newtask(ts=15, tid=11, new_tid=20, new_comm='child', flags=0) 31 32# Create a multi-threaded process which will be forked below. 33trace.add_packet(ts=25) 34trace.add_process(10, 0, "main_thread") 35trace.add_thread(11, 10, "worker_thread") 36 37print(trace.trace.SerializeToString()) 38