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platform_system_core/rootdir/init.trace.rc

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Enable tracing on user builds This change adds init.rc steps to: * allow kernel tracing to be enabled via adb * allow a limited set of kernel trace events to be enabled via adb * allow the kernel trace to be read via adb * allow all users to write to the kernel trace from userland Bug: 6513400 Change-Id: Ic3c189b5697aa5edf88d2f507c932971bed6caff
2012-06-07 09:12:48 +08:00
## 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
Fix tracing on user builds Need the set correct permission for print-tgid option or tracing of sched can't work on user build. Change-Id: Ia88aabe58128b911afd78f01c27f7da884ed03f0 Signed-off-by: Carton He <carton.he@marvell.com>
2013-12-05 14:14:30 +08:00
chown root shell /sys/kernel/debug/tracing/options/print-tgid
Enable tracing on user builds This change adds init.rc steps to: * allow kernel tracing to be enabled via adb * allow a limited set of kernel trace events to be enabled via adb * allow the kernel trace to be read via adb * allow all users to write to the kernel trace from userland Bug: 6513400 Change-Id: Ic3c189b5697aa5edf88d2f507c932971bed6caff
2012-06-07 09:12:48 +08:00
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
init.trace.rc: Set perms for power/clock_set_rate events Bug: 7351763 Change-Id: I1ee3d7c9b55d1b55df6cafb1bf21f9139d964646
2012-10-16 08:04:47 +08:00
chown root shell /sys/kernel/debug/tracing/events/power/clock_set_rate/enable
Enable tracing on user builds This change adds init.rc steps to: * allow kernel tracing to be enabled via adb * allow a limited set of kernel trace events to be enabled via adb * allow the kernel trace to be read via adb * allow all users to write to the kernel trace from userland Bug: 6513400 Change-Id: Ic3c189b5697aa5edf88d2f507c932971bed6caff
2012-06-07 09:12:48 +08:00
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
Fix tracing on user builds Need the set correct permission for print-tgid option or tracing of sched can't work on user build. Change-Id: Ia88aabe58128b911afd78f01c27f7da884ed03f0 Signed-off-by: Carton He <carton.he@marvell.com>
2013-12-05 14:14:30 +08:00
chmod 0664 /sys/kernel/debug/tracing/options/print-tgid
Enable tracing on user builds This change adds init.rc steps to: * allow kernel tracing to be enabled via adb * allow a limited set of kernel trace events to be enabled via adb * allow the kernel trace to be read via adb * allow all users to write to the kernel trace from userland Bug: 6513400 Change-Id: Ic3c189b5697aa5edf88d2f507c932971bed6caff
2012-06-07 09:12:48 +08:00
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
init.trace.rc: Set perms for power/clock_set_rate events Bug: 7351763 Change-Id: I1ee3d7c9b55d1b55df6cafb1bf21f9139d964646
2012-10-16 08:04:47 +08:00
chmod 0664 /sys/kernel/debug/tracing/events/power/clock_set_rate/enable
Enable tracing on user builds This change adds init.rc steps to: * allow kernel tracing to be enabled via adb * allow a limited set of kernel trace events to be enabled via adb * allow the kernel trace to be read via adb * allow all users to write to the kernel trace from userland Bug: 6513400 Change-Id: Ic3c189b5697aa5edf88d2f507c932971bed6caff
2012-06-07 09:12:48 +08:00
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