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traced_perf.rc
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traced_perf.rc
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# Copyright (C) 2020 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.
service traced_perf /system/bin/traced_perf
class late_start
# socket for receiving /proc/pid/{maps,mem} file descriptors
socket traced_perf stream 0666 root root
user nobody
# readproc to stat(/proc/pid) to find out UID of processes, and read
# /proc/pid/cmdline.
group nobody readproc
# KILL for sending BIONIC_SIGNAL_PROFILER.
# DAC_READ_SEARCH for stack unwinding and on-device symbolization (requires
# opening libraries/executables for sections not already mapped in).
capabilities KILL DAC_READ_SEARCH
writepid /dev/cpuset/foreground/tasks
on property:persist.traced_perf.enable=1
start traced_perf
on property:persist.traced_perf.enable=0
stop traced_perf