| # Copyright (C) 2017 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 /system/bin/traced |
| class late_start |
| disabled |
| socket traced_consumer stream 0666 root root |
| socket traced_producer stream 0666 root root |
| user nobody |
| group nobody |
| task_profiles ServiceCapacityLow |
| |
| service traced_probes /system/bin/traced_probes |
| class late_start |
| disabled |
| user nobody |
| # Despite the "log" group below, traced_probes is allowed to read log |
| # only on userdebug/eng via selinux (see traced_probes.te). |
| group nobody readproc log readtracefs |
| task_profiles ServiceCapacityLow |
| # Clean up procfs configuration even if traced_probes crashes |
| # unexpectedly. |
| onrestart exec_background - nobody shell -- /system/bin/traced_probes --cleanup-after-crash |
| file /dev/kmsg w |
| capabilities DAC_READ_SEARCH |
| |
| on property:persist.device_config.global_settings.sys_traced=1 |
| setprop persist.traced.enable 1 |
| |
| on property:persist.device_config.global_settings.sys_traced=0 |
| setprop persist.traced.enable 0 |
| |
| on property:debug.atrace.user_initiated=1 |
| stop traced_probes |
| |
| on property:persist.traced.enable=1 && property:debug.atrace.user_initiated="" |
| start traced_probes |
| |
| on property:persist.traced.enable=1 |
| # Trace files need to be: |
| # - Written by either uid:shell or uid:statsd. |
| # - Read by shell and incidentd. |
| mkdir /data/misc/perfetto-traces 0773 root shell |
| |
| # Traces in this directory are only accessed by dumpstate (read+unlink) and |
| # by the bug reporting UI (ls+getattr). |
| mkdir /data/misc/perfetto-traces/bugreport 0773 root shell |
| |
| # This directory allows shell to save configs file in a place where the |
| # perfetto cmdline client can read then. /data/local/tmp/ isn't safe because |
| # too many other domains can write into that. See b/170404111. |
| mkdir /data/misc/perfetto-configs 0775 root shell |
| |
| start traced |
| start traced_probes |
| |
| on property:persist.traced.enable=0 |
| stop traced |
| stop traced_probes |
| |
| # Reset the Perfetto guard rail state on boot: |
| on post-fs-data |
| rm /data/misc/perfetto-traces/.guardraildata |
| |
| ############################################################################# |
| # mm_events - Arms a perfetto trace config that is triggered |
| # on memory pressure (kmem_activity trigger) |
| ############################################################################# |
| |
| service mm_events /system/bin/mm_events |
| class late_start |
| disabled |
| oneshot |
| user nobody |
| group nobody |
| |
| on property:persist.mm_events.enabled=true && property:persist.traced.enable=1 |
| restart mm_events # Restart to reset backoff interval |
| |
| on property:persist.mm_events.enabled=false |
| stop mm_events |
| |
| ############################################################################# |
| # perfetto_trace_on_boot - Starts a perfetto trace on boot |
| ############################################################################# |
| # |
| # There are two separate actions (a trigger action and a start action) to make |
| # sure that perfetto_trace_on_boot is started only once on boot (otherwise, |
| # whenever persist.debug.perfetto.boottrace=1 is set, perfetto_trace_on_boot |
| # would start immediately). |
| # |
| # persist.debug.perfetto.boottrace=1 can be manually set after boot (to record |
| # a trace on the next reboot) and we don't want to immediately start a trace |
| # when setting the debug property. So we turn "ro.persistent_properties.ready" |
| # into a trigger, and then check whether we should start tracing when the |
| # trigger fires. |
| on perfetto_maybe_trace_on_boot && property:persist.debug.perfetto.boottrace=1 && property:persist.traced.enable=1 |
| setprop persist.debug.perfetto.boottrace "" |
| rm /data/misc/perfetto-traces/boottrace.perfetto-trace |
| # Set by traced after listen()ing on the consumer socket. Without this, |
| # perfetto could try to connect to traced before traced is ready to listen. |
| wait_for_prop sys.trace.traced_started 1 |
| start perfetto_trace_on_boot |
| |
| on property:ro.persistent_properties.ready=true |
| trigger perfetto_maybe_trace_on_boot |
| |
| service perfetto_trace_on_boot /system/bin/perfetto -c /data/misc/perfetto-configs/boottrace.pbtxt --txt -o /data/misc/perfetto-traces/boottrace.perfetto-trace |
| disabled |
| gentle_kill |
| oneshot |
| user shell |
| group nobody |
| |
| # This is meant to stop the boot tracing. |
| # To use this, add a trigger with mode STOP_TRACING in the configuration used in perfetto_trace_on_boot. |
| # Then create a new config which contains `activate_triggers: <trigger name>` where <trigger name> is |
| # the name specified in configuration used in perfetto_trace_on_boot. |
| on property:sys.boot_completed=1 |
| exec -- /system/bin/perfetto -c /data/misc/perfetto-configs/stopboottracetrigger.pbtxt --txt |