| ## Permissions to allow system-wide tracing to the kernel trace buffer. |
| ## |
| on late-init |
| |
| # Allow writing to the kernel trace log. |
| chmod 0222 /sys/kernel/debug/tracing/trace_marker |
| chmod 0222 /sys/kernel/tracing/trace_marker |
| |
| # Scheduler tracepoints require schedstats=enable |
| write /proc/sys/kernel/sched_schedstats 1 |
| |
| # Grant unix world read/write permissions to kernel tracepoints. |
| # Access control to these files is now entirely in selinux policy. |
| chmod 0666 /sys/kernel/debug/tracing/trace_clock |
| chmod 0666 /sys/kernel/tracing/trace_clock |
| chmod 0666 /sys/kernel/debug/tracing/buffer_size_kb |
| chmod 0666 /sys/kernel/tracing/buffer_size_kb |
| chmod 0666 /sys/kernel/debug/tracing/options/overwrite |
| chmod 0666 /sys/kernel/tracing/options/overwrite |
| chmod 0666 /sys/kernel/debug/tracing/options/print-tgid |
| chmod 0666 /sys/kernel/tracing/options/print-tgid |
| chmod 0666 /sys/kernel/debug/tracing/saved_cmdlines_size |
| chmod 0666 /sys/kernel/tracing/saved_cmdlines_size |
| chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_switch/enable |
| chmod 0666 /sys/kernel/tracing/events/sched/sched_switch/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable |
| chmod 0666 /sys/kernel/tracing/events/sched/sched_wakeup/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_blocked_reason/enable |
| chmod 0666 /sys/kernel/tracing/events/sched/sched_blocked_reason/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_cpu_hotplug/enable |
| chmod 0666 /sys/kernel/tracing/events/sched/sched_cpu_hotplug/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_pi_setprio/enable |
| chmod 0666 /sys/kernel/tracing/events/sched/sched_pi_setprio/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/cgroup/enable |
| chmod 0666 /sys/kernel/tracing/events/cgroup/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/power/cpu_frequency/enable |
| chmod 0666 /sys/kernel/tracing/events/power/cpu_frequency/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/power/cpu_idle/enable |
| chmod 0666 /sys/kernel/tracing/events/power/cpu_idle/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/power/clock_set_rate/enable |
| chmod 0666 /sys/kernel/tracing/events/power/clock_set_rate/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/power/cpu_frequency_limits/enable |
| chmod 0666 /sys/kernel/tracing/events/power/cpu_frequency_limits/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/cpufreq_interactive/enable |
| chmod 0666 /sys/kernel/tracing/events/cpufreq_interactive/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable |
| chmod 0666 /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable |
| chmod 0666 /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable |
| chmod 0666 /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable |
| chmod 0666 /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable |
| chmod 0666 /sys/kernel/debug/tracing/tracing_on |
| chmod 0666 /sys/kernel/tracing/tracing_on |
| chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_transaction/enable |
| chmod 0666 /sys/kernel/tracing/events/binder/binder_transaction/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_transaction_received/enable |
| chmod 0666 /sys/kernel/tracing/events/binder/binder_transaction_received/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_lock/enable |
| chmod 0666 /sys/kernel/tracing/events/binder/binder_lock/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_locked/enable |
| chmod 0666 /sys/kernel/tracing/events/binder/binder_locked/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_unlock/enable |
| chmod 0666 /sys/kernel/tracing/events/binder/binder_unlock/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/i2c/enable |
| chmod 0666 /sys/kernel/tracing/events/i2c/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_read/enable |
| chmod 0666 /sys/kernel/tracing/events/i2c/i2c_read/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_write/enable |
| chmod 0666 /sys/kernel/tracing/events/i2c/i2c_write/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_result/enable |
| chmod 0666 /sys/kernel/tracing/events/i2c/i2c_result/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_reply/enable |
| chmod 0666 /sys/kernel/tracing/events/i2c/i2c_reply/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_read/enable |
| chmod 0666 /sys/kernel/tracing/events/i2c/smbus_read/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_write/enable |
| chmod 0666 /sys/kernel/tracing/events/i2c/smbus_write/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_result/enable |
| chmod 0666 /sys/kernel/tracing/events/i2c/smbus_result/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_reply/enable |
| chmod 0666 /sys/kernel/tracing/events/i2c/smbus_reply/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/lowmemorykiller/enable |
| chmod 0666 /sys/kernel/tracing/events/lowmemorykiller/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/sync/enable |
| chmod 0666 /sys/kernel/tracing/events/sync/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/fence/enable |
| chmod 0666 /sys/kernel/tracing/events/fence/enable |
| |
| |
| # disk |
| chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_sync_file_enter/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_enter/enable |
| chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_sync_file_exit/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_exit/enable |
| chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_write_begin/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_write_begin/enable |
| chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_write_end/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_write_end/enable |
| chmod 0666 /sys/kernel/tracing/events/ext4/ext4_da_write_begin/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_da_write_begin/enable |
| chmod 0666 /sys/kernel/tracing/events/ext4/ext4_da_write_end/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_da_write_end/enable |
| chmod 0666 /sys/kernel/tracing/events/ext4/ext4_sync_file_enter/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_enter/enable |
| chmod 0666 /sys/kernel/tracing/events/ext4/ext4_sync_file_exit/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_exit/enable |
| chmod 0666 /sys/kernel/tracing/events/block/block_rq_issue/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/block/block_rq_issue/enable |
| chmod 0666 /sys/kernel/tracing/events/block/block_rq_complete/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/block/block_rq_complete/enable |
| |
| # graphics |
| chmod 0666 /sys/kernel/tracing/events/sde/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/sde/enable |
| chmod 0666 /sys/kernel/tracing/events/mdss/enable |
| chmod 0666 /sys/kernel/debug/tracing/events/mdss/enable |
| |
| # Tracing disabled by default |
| write /sys/kernel/debug/tracing/tracing_on 0 |
| write /sys/kernel/tracing/tracing_on 0 |
| |
| # Read and truncate the kernel trace. |
| chmod 0666 /sys/kernel/debug/tracing/trace |
| chmod 0666 /sys/kernel/tracing/trace |
| |
| on property:persist.debug.atrace.boottrace=1 |
| start boottrace |
| |
| # Run atrace with the categories written in a file |
| service boottrace /system/bin/atrace --async_start -f /data/misc/boottrace/categories |
| disabled |
| oneshot |
