atrace: support boot trace
Enable boottrace flag through fastboot.
Test: Boot up and have trace
Bug: 236186461
Bug: 170928304
Change-Id: I590f46cdf07f88338bd62618821572645d0de706
diff --git a/cmds/atrace/atrace.rc b/cmds/atrace/atrace.rc
index 891b1c6..2e0c95a 100644
--- a/cmds/atrace/atrace.rc
+++ b/cmds/atrace/atrace.rc
@@ -300,6 +300,12 @@
chmod 0666 /sys/kernel/debug/tracing/events/kmem/rss_stat/trigger
chmod 0666 /sys/kernel/tracing/events/kmem/rss_stat/trigger
+on late-init && property:ro.boot.fastboot.boottrace=enabled
+ setprop debug.atrace.tags.enableflags 802922
+ setprop persist.traced.enable 0
+ write /sys/kernel/debug/tracing/tracing_on 1
+ write /sys/kernel/tracing/tracing_on 1
+
# Only create the tracing instance if persist.mm_events.enabled
# Attempting to remove the tracing instance after it has been created
# will likely fail with EBUSY as it would be in use by traced_probes.
@@ -395,3 +401,10 @@
service boottrace /system/bin/atrace --async_start -f /data/misc/boottrace/categories
disabled
oneshot
+
+on property:sys.boot_completed=1 && property:ro.boot.fastboot.boottrace=enabled
+ setprop debug.atrace.tags.enableflags 0
+ setprop persist.traced.enable 1
+ write /sys/kernel/debug/tracing/tracing_on 0
+ write /sys/kernel/tracing/tracing_on 0
+