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am 0f3974c3: Merge "Enable tracing on user builds" into jb-dev

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* commit '0f3974c3d0ee2ffe5e0cb9a56658ba18d511f6ea':
  Enable tracing on user builds
This commit is contained in:
Jamie Gennis 2012-06-12 12:41:25 -07:00 committed by Android Git Automerger
commit 1e96e16f81
2 changed files with 32 additions and 5 deletions
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6
rootdir/init.rc
View file

@ -6,6 +6,7 @@
import /init.${ro.hardware}.rc
import /init.usb.rc
import /init.trace.rc
on early-init
# Set init and its forked children's oom_adj.
@ -353,10 +354,6 @@ service console /system/bin/sh
on property:ro.debuggable=1
start console
# Allow writing to the kernel trace log. Enabling tracing still requires root.
on property:ro.debuggable=1
chmod 0222 /sys/kernel/debug/tracing/trace_marker
# adbd is controlled via property triggers in init.<platform>.usb.rc
service adbd /sbin/adbd
class core
@ -491,4 +488,3 @@ service mdnsd /system/bin/mdnsd
socket mdnsd stream 0660 mdnsr inet
disabled
oneshot

31
rootdir/init.trace.rc Normal file
View file

@ -0,0 +1,31 @@
## Permissions to allow system-wide tracing to the kernel trace buffer.
##
on boot
# Allow writing to the kernel trace log.
chmod 0222 /sys/kernel/debug/tracing/trace_marker
# Allow the shell group to enable (some) kernel tracing.
chown root shell /sys/kernel/debug/tracing/trace_clock
chown root shell /sys/kernel/debug/tracing/buffer_size_kb
chown root shell /sys/kernel/debug/tracing/options/overwrite
chown root shell /sys/kernel/debug/tracing/events/sched/sched_switch/enable
chown root shell /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable
chown root shell /sys/kernel/debug/tracing/events/power/cpu_frequency/enable
chown root shell /sys/kernel/debug/tracing/events/power/cpu_idle/enable
chown root shell /sys/kernel/debug/tracing/events/cpufreq_interactive/enable
chown root shell /sys/kernel/debug/tracing/tracing_on
chmod 0664 /sys/kernel/debug/tracing/trace_clock
chmod 0664 /sys/kernel/debug/tracing/buffer_size_kb
chmod 0664 /sys/kernel/debug/tracing/options/overwrite
chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_switch/enable
chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable
chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_frequency/enable
chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_idle/enable
chmod 0664 /sys/kernel/debug/tracing/events/cpufreq_interactive/enable
chmod 0664 /sys/kernel/debug/tracing/tracing_on
# Allow only the shell group to read and truncate the kernel trace.
chown root shell /sys/kernel/debug/tracing/trace
chmod 0660 /sys/kernel/debug/tracing/trace