# Copyright (C) 2017 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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service traced /system/bin/traced
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class late_start
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disabled
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socket traced_consumer stream 0666 root root
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socket traced_producer stream 0666 root root
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user nobody
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group nobody
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writepid /dev/cpuset/system-background/tasks
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service traced_probes /system/bin/traced_probes
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class late_start
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disabled
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user nobody
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# Despite the "log" group below, traced_probes is whitelisted for log read
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# access only on userdebug/eng via selinux (see traced_probes.te).
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group nobody readproc log
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writepid /dev/cpuset/system-background/tasks
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# Clean up procfs configuration even if traced_probes crashes
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# unexpectedly.
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onrestart exec_background - nobody shell -- /system/bin/traced_probes --cleanup-after-crash
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file /dev/kmsg w
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capabilities DAC_READ_SEARCH
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on property:persist.device_config.global_settings.sys_traced=1
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setprop persist.traced.enable 1
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on property:persist.device_config.global_settings.sys_traced=0
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setprop persist.traced.enable 0
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on property:debug.atrace.user_initiated=1
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stop traced_probes
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on property:persist.traced.enable=1 && property:debug.atrace.user_initiated=""
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start traced_probes
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on property:persist.traced.enable=1
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# Trace files need to be:
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# - Written by either uid:shell or uid:statsd.
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# - Read by shell and dropbox (dropbox is part of system_server).
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# When written to dropbox, they are persistet in the perfetto-traces folder
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# only for the time it takes to make a dropbox call, and unlinked
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# immediately in any case.
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mkdir /data/misc/perfetto-traces 0773 root shell
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start traced
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start traced_probes
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on property:persist.traced.enable=0
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stop traced
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stop traced_probes
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