1## Permissions to allow system-wide tracing to the kernel trace buffer. 2## 3on post-fs 4 5# Allow writing to the kernel trace log. 6 chmod 0222 /sys/kernel/debug/tracing/trace_marker 7 chmod 0222 /sys/kernel/tracing/trace_marker 8 9# Allow the shell group to enable (some) kernel tracing. 10 chown root shell /sys/kernel/debug/tracing/trace_clock 11 chown root shell /sys/kernel/tracing/trace_clock 12 chown root shell /sys/kernel/debug/tracing/buffer_size_kb 13 chown root shell /sys/kernel/tracing/buffer_size_kb 14 chown root shell /sys/kernel/debug/tracing/options/overwrite 15 chown root shell /sys/kernel/tracing/options/overwrite 16 chown root shell /sys/kernel/debug/tracing/options/print-tgid 17 chown root shell /sys/kernel/tracing/options/print-tgid 18 chown root shell /sys/kernel/debug/tracing/saved_cmdlines_size 19 chown root shell /sys/kernel/tracing/saved_cmdlines_size 20 chown root shell /sys/kernel/debug/tracing/events/sched/sched_switch/enable 21 chown root shell /sys/kernel/tracing/events/sched/sched_switch/enable 22 chown root shell /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable 23 chown root shell /sys/kernel/tracing/events/sched/sched_wakeup/enable 24 chown root shell /sys/kernel/debug/tracing/events/sched/sched_blocked_reason/enable 25 chown root shell /sys/kernel/tracing/events/sched/sched_blocked_reason/enable 26 chown root shell /sys/kernel/debug/tracing/events/sched/sched_cpu_hotplug/enable 27 chown root shell /sys/kernel/tracing/events/sched/sched_cpu_hotplug/enable 28 chown root shell /sys/kernel/debug/tracing/events/power/cpu_frequency/enable 29 chown root shell /sys/kernel/tracing/events/power/cpu_frequency/enable 30 chown root shell /sys/kernel/debug/tracing/events/power/cpu_idle/enable 31 chown root shell /sys/kernel/tracing/events/power/cpu_idle/enable 32 chown root shell /sys/kernel/debug/tracing/events/power/clock_set_rate/enable 33 chown root shell /sys/kernel/tracing/events/power/clock_set_rate/enable 34 chown root shell /sys/kernel/debug/tracing/events/power/cpu_frequency_limits/enable 35 chown root shell /sys/kernel/tracing/events/power/cpu_frequency_limits/enable 36 chown root shell /sys/kernel/debug/tracing/events/cpufreq_interactive/enable 37 chown root shell /sys/kernel/tracing/events/cpufreq_interactive/enable 38 chown root shell /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable 39 chown root shell /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable 40 chown root shell /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable 41 chown root shell /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable 42 chown root shell /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable 43 chown root shell /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable 44 chown root shell /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable 45 chown root shell /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable 46 chown root shell /sys/kernel/debug/tracing/events/binder/binder_transaction/enable 47 chown root shell /sys/kernel/tracing/events/binder/binder_transaction/enable 48 chown root shell /sys/kernel/debug/tracing/events/binder/binder_transaction_received/enable 49 chown root shell /sys/kernel/tracing/events/binder/binder_transaction_received/enable 50 chown root shell /sys/kernel/debug/tracing/events/binder/binder_lock/enable 51 chown root shell /sys/kernel/tracing/events/binder/binder_lock/enable 52 chown root shell /sys/kernel/debug/tracing/events/binder/binder_locked/enable 53 chown root shell /sys/kernel/tracing/events/binder/binder_locked/enable 54 chown root shell /sys/kernel/debug/tracing/events/binder/binder_unlock/enable 55 chown root shell /sys/kernel/tracing/events/binder/binder_unlock/enable 56 57 chown root shell /sys/kernel/debug/tracing/tracing_on 58 chown root shell /sys/kernel/tracing/tracing_on 59 60 chmod 0664 /sys/kernel/debug/tracing/trace_clock 61 chmod 0664 /sys/kernel/tracing/trace_clock 62 chmod 0664 /sys/kernel/debug/tracing/buffer_size_kb 63 chmod 0664 /sys/kernel/tracing/buffer_size_kb 64 chmod 0664 /sys/kernel/debug/tracing/options/overwrite 65 chmod 0664 /sys/kernel/tracing/options/overwrite 66 chmod 0664 /sys/kernel/debug/tracing/options/print-tgid 67 chmod 0664 /sys/kernel/tracing/options/print-tgid 68 chmod 0664 /sys/kernel/debug/tracing/saved_cmdlines_size 69 chmod 0664 /sys/kernel/tracing/saved_cmdlines_size 70 chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_switch/enable 71 chmod 0664 /sys/kernel/tracing/events/sched/sched_switch/enable 72 chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable 73 chmod 0664 /sys/kernel/tracing/events/sched/sched_wakeup/enable 74 chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_blocked_reason/enable 75 chmod 0664 /sys/kernel/tracing/events/sched/sched_blocked_reason/enable 76 chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_cpu_hotplug/enable 77 chmod 0664 /sys/kernel/tracing/events/sched/sched_cpu_hotplug/enable 78 chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_frequency/enable 79 chmod 0664 /sys/kernel/tracing/events/power/cpu_frequency/enable 80 chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_idle/enable 81 chmod 0664 /sys/kernel/tracing/events/power/cpu_idle/enable 82 chmod 0664 /sys/kernel/debug/tracing/events/power/clock_set_rate/enable 83 chmod 0664 /sys/kernel/tracing/events/power/clock_set_rate/enable 84 chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_frequency_limits/enable 85 chmod 0664 /sys/kernel/tracing/events/power/cpu_frequency_limits/enable 86 chmod 0664 /sys/kernel/debug/tracing/events/cpufreq_interactive/enable 87 chmod 0664 /sys/kernel/tracing/events/cpufreq_interactive/enable 88 chmod 0664 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable 89 chmod 0664 /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable 90 chmod 0664 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable 91 chmod 0664 /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable 92 chmod 0664 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable 93 chmod 0664 /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable 94 chmod 0664 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable 95 chmod 0664 /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable 96 chmod 0664 /sys/kernel/debug/tracing/tracing_on 97 chmod 0664 /sys/kernel/tracing/tracing_on 98 chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_transaction/enable 99 chmod 0664 /sys/kernel/tracing/events/binder/binder_transaction/enable 100 chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_transaction_received/enable 101 chmod 0664 /sys/kernel/tracing/events/binder/binder_transaction_received/enable 102 chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_lock/enable 103 chmod 0664 /sys/kernel/tracing/events/binder/binder_lock/enable 104 chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_locked/enable 105 chmod 0664 /sys/kernel/tracing/events/binder/binder_locked/enable 106 chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_unlock/enable 107 chmod 0664 /sys/kernel/tracing/events/binder/binder_unlock/enable 108 chmod 0664 /sys/kernel/debug/tracing/events/i2c/enable 109 chmod 0664 /sys/kernel/tracing/events/i2c/enable 110 chmod 0664 /sys/kernel/debug/tracing/events/i2c/i2c_read/enable 111 chmod 0664 /sys/kernel/tracing/events/i2c/i2c_read/enable 112 chmod 0664 /sys/kernel/debug/tracing/events/i2c/i2c_write/enable 113 chmod 0664 /sys/kernel/tracing/events/i2c/i2c_write/enable 114 chmod 0664 /sys/kernel/debug/tracing/events/i2c/i2c_result/enable 115 chmod 0664 /sys/kernel/tracing/events/i2c/i2c_result/enable 116 chmod 0664 /sys/kernel/debug/tracing/events/i2c/i2c_reply/enable 117 chmod 0664 /sys/kernel/tracing/events/i2c/i2c_reply/enable 118 chmod 0664 /sys/kernel/debug/tracing/events/i2c/smbus_read/enable 119 chmod 0664 /sys/kernel/tracing/events/i2c/smbus_read/enable 120 chmod 0664 /sys/kernel/debug/tracing/events/i2c/smbus_write/enable 121 chmod 0664 /sys/kernel/tracing/events/i2c/smbus_write/enable 122 chmod 0664 /sys/kernel/debug/tracing/events/i2c/smbus_result/enable 123 chmod 0664 /sys/kernel/tracing/events/i2c/smbus_result/enable 124 chmod 0664 /sys/kernel/debug/tracing/events/i2c/smbus_reply/enable 125 chmod 0664 /sys/kernel/tracing/events/i2c/smbus_reply/enable 126 127 # Tracing disabled by default 128 write /sys/kernel/debug/tracing/tracing_on 0 129 write /sys/kernel/tracing/tracing_on 0 130 131# Allow only the shell group to read and truncate the kernel trace. 132 chown root shell /sys/kernel/debug/tracing/trace 133 chown root shell /sys/kernel/tracing/trace 134 chmod 0660 /sys/kernel/debug/tracing/trace 135 chmod 0660 /sys/kernel/tracing/trace 136 137on property:persist.debug.atrace.boottrace=1 138 start boottrace 139 140# Run atrace with the categories written in a file 141service boottrace /system/bin/atrace --async_start -f /data/misc/boottrace/categories 142 disabled 143 oneshot 144