1# This file is the LOCAL_INIT_RC file for the bootstat command.
2
3on post-fs-data
4    mkdir /data/misc/bootstat 0700 root root
5
6# Record the time at which the user has successfully entered the pin to decrypt
7# the device, /data is decrypted, and the system is entering the main boot phase.
8#
9# post-fs-data: /data is writable
10# property:init.svc.bootanim=running: The boot animation is running
11# property:ro.crypto.type=block: FDE device
12on post-fs-data && property:init.svc.bootanim=running && property:ro.crypto.type=block
13    exec - root root -- /system/bin/bootstat -r post_decrypt_time_elapsed
14
15# sys.logbootcomplete is a signal to enable the bootstat logging mechanism.
16# This signaling is necessary to prevent logging boot metrics after a runtime
17# restart (e.g., adb shell stop && adb shell start).  /proc/uptime is not reset
18# during a runtime restart, which leads to false boot time metrics being reported.
19#
20# The 'on boot' event occurs once per hard boot (device power on), which
21# switches the flag on. If the device performs a runtime restart, the flag is
22# switched off and cannot be switched on until the device hard boots again.
23
24# Enable bootstat logging on boot.
25on boot
26    setprop sys.logbootcomplete 1
27
28# Disable further bootstat logging on a runtime restart. A runtime restart is
29# signaled by the zygote stopping.
30on property:init.svc.zygote=stopping
31    setprop sys.logbootcomplete 0
32
33# Record boot complete metrics.
34on property:sys.boot_completed=1 && property:sys.logbootcomplete=1
35    # Record boot_complete and related stats (decryption, etc).
36    exec - root root -- /system/bin/bootstat --record_boot_complete
37
38    # Record the boot reason.
39    exec - root root -- /system/bin/bootstat --record_boot_reason
40
41    # Record time since factory reset.
42    exec - root root -- /system/bin/bootstat --record_time_since_factory_reset
43
44    # Log all boot events.
45    exec - root root -- /system/bin/bootstat -l
46