cmds/atrace/atrace.rc

   1 ## Permissions to allow system-wide tracing to the kernel trace buffer.
   2 ##
   3 on boot
   4
   5 # Allow writing to the kernel trace log.
   6     chmod 0222 /sys/kernel/debug/tracing/trace_marker
   7
   8 # Allow the shell group to enable (some) kernel tracing.
   9     chown root shell /sys/kernel/debug/tracing/trace_clock
  10     chown root shell /sys/kernel/debug/tracing/buffer_size_kb
  11     chown root shell /sys/kernel/debug/tracing/options/overwrite
  12     chown root shell /sys/kernel/debug/tracing/options/print-tgid
  13     chown root shell /sys/kernel/debug/tracing/events/sched/sched_switch/enable
  14     chown root shell /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable
  15     chown root shell /sys/kernel/debug/tracing/events/sched/sched_blocked_reason/enable
  16     chown root shell /sys/kernel/debug/tracing/events/power/cpu_frequency/enable
  17     chown root shell /sys/kernel/debug/tracing/events/power/cpu_idle/enable
  18     chown root shell /sys/kernel/debug/tracing/events/power/clock_set_rate/enable
  19     chown root shell /sys/kernel/debug/tracing/events/cpufreq_interactive/enable
  20     chown root shell /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable
  21     chown root shell /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable
  22     chown root shell /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable
  23     chown root shell /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable
  24     chown root shell /sys/kernel/debug/tracing/events/binder/binder_transaction/enable
  25     chown root shell /sys/kernel/debug/tracing/events/binder/binder_transaction_received/enable
  26     chown root shell /sys/kernel/debug/tracing/events/binder/binder_lock/enable
  27     chown root shell /sys/kernel/debug/tracing/events/binder/binder_locked/enable
  28     chown root shell /sys/kernel/debug/tracing/events/binder/binder_unlock/enable
  29
  30     chown root shell /sys/kernel/debug/tracing/tracing_on
  31
  32     chmod 0664 /sys/kernel/debug/tracing/trace_clock
  33     chmod 0664 /sys/kernel/debug/tracing/buffer_size_kb
  34     chmod 0664 /sys/kernel/debug/tracing/options/overwrite
  35     chmod 0664 /sys/kernel/debug/tracing/options/print-tgid
  36     chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_switch/enable
  37     chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable
  38     chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_blocked_reason/enable
  39     chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_frequency/enable
  40     chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_idle/enable
  41     chmod 0664 /sys/kernel/debug/tracing/events/power/clock_set_rate/enable
  42     chmod 0664 /sys/kernel/debug/tracing/events/cpufreq_interactive/enable
  43     chmod 0664 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable
  44     chmod 0664 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable
  45     chmod 0664 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable
  46     chmod 0664 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable
  47     chmod 0664 /sys/kernel/debug/tracing/tracing_on
  48     chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_transaction/enable
  49     chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_transaction_received/enable
  50     chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_lock/enable
  51     chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_locked/enable
  52     chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_unlock/enable
  53
  54     # Tracing disabled by default
  55     write /sys/kernel/debug/tracing/tracing_on 0
  56
  57 # Allow only the shell group to read and truncate the kernel trace.
  58     chown root shell /sys/kernel/debug/tracing/trace
  59     chmod 0660 /sys/kernel/debug/tracing/trace
  60
  61 on property:persist.debug.atrace.boottrace=1
  62     start boottrace
  63
  64 # Run atrace with the categories written in a file
  65 service boottrace /system/bin/atrace --async_start -f /data/misc/boottrace/categories
  66     disabled
  67     oneshot