1## Permissions to allow system-wide tracing to the kernel trace buffer. 2## 3on late-init 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# Scheduler tracepoints require schedstats=enable 10 write /proc/sys/kernel/sched_schedstats 1 11 12# Grant unix world read/write permissions to kernel tracepoints. 13# Access control to these files is now entirely in selinux policy. 14 chmod 0666 /sys/kernel/debug/tracing/trace_clock 15 chmod 0666 /sys/kernel/tracing/trace_clock 16 chmod 0666 /sys/kernel/debug/tracing/buffer_size_kb 17 chmod 0666 /sys/kernel/tracing/buffer_size_kb 18 chmod 0666 /sys/kernel/debug/tracing/options/overwrite 19 chmod 0666 /sys/kernel/tracing/options/overwrite 20 chmod 0666 /sys/kernel/debug/tracing/options/print-tgid 21 chmod 0666 /sys/kernel/tracing/options/print-tgid 22 chmod 0666 /sys/kernel/debug/tracing/saved_cmdlines_size 23 chmod 0666 /sys/kernel/tracing/saved_cmdlines_size 24 chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_switch/enable 25 chmod 0666 /sys/kernel/tracing/events/sched/sched_switch/enable 26 chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable 27 chmod 0666 /sys/kernel/tracing/events/sched/sched_wakeup/enable 28 chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_blocked_reason/enable 29 chmod 0666 /sys/kernel/tracing/events/sched/sched_blocked_reason/enable 30 chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_cpu_hotplug/enable 31 chmod 0666 /sys/kernel/tracing/events/sched/sched_cpu_hotplug/enable 32 chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_pi_setprio/enable 33 chmod 0666 /sys/kernel/tracing/events/sched/sched_pi_setprio/enable 34 chmod 0666 /sys/kernel/debug/tracing/events/cgroup/enable 35 chmod 0666 /sys/kernel/tracing/events/cgroup/enable 36 chmod 0666 /sys/kernel/debug/tracing/events/power/cpu_frequency/enable 37 chmod 0666 /sys/kernel/tracing/events/power/cpu_frequency/enable 38 chmod 0666 /sys/kernel/debug/tracing/events/power/cpu_idle/enable 39 chmod 0666 /sys/kernel/tracing/events/power/cpu_idle/enable 40 chmod 0666 /sys/kernel/debug/tracing/events/power/clock_set_rate/enable 41 chmod 0666 /sys/kernel/tracing/events/power/clock_set_rate/enable 42 chmod 0666 /sys/kernel/debug/tracing/events/power/cpu_frequency_limits/enable 43 chmod 0666 /sys/kernel/tracing/events/power/cpu_frequency_limits/enable 44 chmod 0666 /sys/kernel/debug/tracing/events/cpufreq_interactive/enable 45 chmod 0666 /sys/kernel/tracing/events/cpufreq_interactive/enable 46 chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable 47 chmod 0666 /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable 48 chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable 49 chmod 0666 /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable 50 chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable 51 chmod 0666 /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable 52 chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable 53 chmod 0666 /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable 54 chmod 0666 /sys/kernel/debug/tracing/tracing_on 55 chmod 0666 /sys/kernel/tracing/tracing_on 56 chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_transaction/enable 57 chmod 0666 /sys/kernel/tracing/events/binder/binder_transaction/enable 58 chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_transaction_received/enable 59 chmod 0666 /sys/kernel/tracing/events/binder/binder_transaction_received/enable 60 chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_lock/enable 61 chmod 0666 /sys/kernel/tracing/events/binder/binder_lock/enable 62 chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_locked/enable 63 chmod 0666 /sys/kernel/tracing/events/binder/binder_locked/enable 64 chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_unlock/enable 65 chmod 0666 /sys/kernel/tracing/events/binder/binder_unlock/enable 66 chmod 0666 /sys/kernel/debug/tracing/events/i2c/enable 67 chmod 0666 /sys/kernel/tracing/events/i2c/enable 68 chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_read/enable 69 chmod 0666 /sys/kernel/tracing/events/i2c/i2c_read/enable 70 chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_write/enable 71 chmod 0666 /sys/kernel/tracing/events/i2c/i2c_write/enable 72 chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_result/enable 73 chmod 0666 /sys/kernel/tracing/events/i2c/i2c_result/enable 74 chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_reply/enable 75 chmod 0666 /sys/kernel/tracing/events/i2c/i2c_reply/enable 76 chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_read/enable 77 chmod 0666 /sys/kernel/tracing/events/i2c/smbus_read/enable 78 chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_write/enable 79 chmod 0666 /sys/kernel/tracing/events/i2c/smbus_write/enable 80 chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_result/enable 81 chmod 0666 /sys/kernel/tracing/events/i2c/smbus_result/enable 82 chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_reply/enable 83 chmod 0666 /sys/kernel/tracing/events/i2c/smbus_reply/enable 84 chmod 0666 /sys/kernel/debug/tracing/events/lowmemorykiller/enable 85 chmod 0666 /sys/kernel/tracing/events/lowmemorykiller/enable 86 chmod 0666 /sys/kernel/debug/tracing/events/sync/enable 87 chmod 0666 /sys/kernel/tracing/events/sync/enable 88 chmod 0666 /sys/kernel/debug/tracing/events/fence/enable 89 chmod 0666 /sys/kernel/tracing/events/fence/enable 90 91 92 # disk 93 chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_sync_file_enter/enable 94 chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_enter/enable 95 chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_sync_file_exit/enable 96 chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_exit/enable 97 chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_write_begin/enable 98 chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_write_begin/enable 99 chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_write_end/enable 100 chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_write_end/enable 101 chmod 0666 /sys/kernel/tracing/events/ext4/ext4_da_write_begin/enable 102 chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_da_write_begin/enable 103 chmod 0666 /sys/kernel/tracing/events/ext4/ext4_da_write_end/enable 104 chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_da_write_end/enable 105 chmod 0666 /sys/kernel/tracing/events/ext4/ext4_sync_file_enter/enable 106 chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_enter/enable 107 chmod 0666 /sys/kernel/tracing/events/ext4/ext4_sync_file_exit/enable 108 chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_exit/enable 109 chmod 0666 /sys/kernel/tracing/events/block/block_rq_issue/enable 110 chmod 0666 /sys/kernel/debug/tracing/events/block/block_rq_issue/enable 111 chmod 0666 /sys/kernel/tracing/events/block/block_rq_complete/enable 112 chmod 0666 /sys/kernel/debug/tracing/events/block/block_rq_complete/enable 113 114 # graphics 115 chmod 0666 /sys/kernel/tracing/events/sde/enable 116 chmod 0666 /sys/kernel/debug/tracing/events/sde/enable 117 chmod 0666 /sys/kernel/tracing/events/mdss/enable 118 chmod 0666 /sys/kernel/debug/tracing/events/mdss/enable 119 120# Tracing disabled by default 121 write /sys/kernel/debug/tracing/tracing_on 0 122 write /sys/kernel/tracing/tracing_on 0 123 124# Read and truncate the kernel trace. 125 chmod 0666 /sys/kernel/debug/tracing/trace 126 chmod 0666 /sys/kernel/tracing/trace 127 128on property:persist.debug.atrace.boottrace=1 129 start boottrace 130 131# Run atrace with the categories written in a file 132service boottrace /system/bin/atrace --async_start -f /data/misc/boottrace/categories 133 disabled 134 oneshot 135