on early-init start ueventd on init sysclktz 0 loglevel 9 # setup the global environment export PATH /sbin:/vendor/bin:/system/sbin:/system/bin:/system/xbin export LD_LIBRARY_PATH /vendor/lib:/system/lib export ANDROID_BOOTLOGO 1 export ANDROID_CACHE /cache export ANDROID_ROOT /system export ANDROID_ASSETS /system/app export ANDROID_DATA /data export EXTERNAL_STORAGE /mnt/sdcard export PHONE_STORAGE /mnt/emmc export ASEC_MOUNTPOINT /mnt/asec export LOOP_MOUNTPOINT /mnt/obb export SD_EXT_DIRECTORY /sd-ext export BOOTCLASSPATH /system/framework/core.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/android.policy.jar:/system/framework/services.jar:/system/framework/core-junit.jar # Backward compatibility symlink /sys/kernel/debug /d # Right now vendor lives on the same filesystem as system, # but someday that may change. symlink /system/vendor /vendor # create mountpoints mkdir /mnt 0775 root system mkdir /mnt/sdcard 0000 system system mkdir /mnt/emmc 0000 system system # Create cgroup mount point for cpu accounting mkdir /acct mount cgroup none /acct cpuacct mkdir /acct/uid mkdir /system mkdir /data 0771 system system mkdir /datadata 0771 system system mkdir /cache 0771 system cache mkdir /config 0500 root root # Directory for putting things only root should see. mkdir /mnt/secure 0700 root root # Directory for staging bindmounts mkdir /mnt/secure/staging 0700 root root # Directory-target for where the secure container # imagefile directory will be bind-mounted mkdir /mnt/secure/asec 0700 root root # Secure container public mount points. mkdir /mnt/asec 0700 root system mount tmpfs tmpfs /mnt/asec mode=0755,gid=1000 # Filesystem image public mount points. mkdir /mnt/obb 0700 root system mount tmpfs tmpfs /mnt/obb mode=0755,gid=1000 mkdir /sd-ext 0771 system system write /proc/sys/kernel/panic_on_oops 1 write /proc/sys/kernel/hung_task_timeout_secs 0 write /proc/cpu/alignment 4 write /proc/sys/kernel/sched_latency_ns 10000000 write /proc/sys/kernel/sched_wakeup_granularity_ns 2000000 write /proc/sys/kernel/sched_compat_yield 1 write /proc/sys/kernel/sched_child_runs_first 0 # Create cgroup mount points for process groups mkdir /dev/cpuctl mount cgroup none /dev/cpuctl cpu chown system system /dev/cpuctl chown system system /dev/cpuctl/tasks chmod 0777 /dev/cpuctl/tasks write /dev/cpuctl/cpu.shares 1024 mkdir /dev/cpuctl/fg_boost chown system system /dev/cpuctl/fg_boost/tasks chmod 0777 /dev/cpuctl/fg_boost/tasks write /dev/cpuctl/fg_boost/cpu.shares 1024 mkdir /dev/cpuctl/bg_non_interactive chown system system /dev/cpuctl/bg_non_interactive/tasks chmod 0777 /dev/cpuctl/bg_non_interactive/tasks # 5.0 % write /dev/cpuctl/bg_non_interactive/cpu.shares 52 on fs # mount mtd partitions # Mount /system rw first to give the filesystem a chance to save a checkpoint mount yaffs2 mtd@system /system on boot # basic network init ifup lo hostname localhost domainname localdomain # set RLIMIT_NICE to allow priorities from 19 to -20 setrlimit 13 40 40 # Define the oom_adj values for the classes of processes that can be # killed by the kernel. These are used in ActivityManagerService. setprop ro.FOREGROUND_APP_ADJ 0 setprop ro.VISIBLE_APP_ADJ 1 setprop ro.PERCEPTIBLE_APP_ADJ 2 setprop ro.HEAVY_WEIGHT_APP_ADJ 3 setprop ro.SECONDARY_SERVER_ADJ 4 setprop ro.BACKUP_APP_ADJ 5 setprop ro.HOME_APP_ADJ 6 setprop ro.HIDDEN_APP_MIN_ADJ 7 setprop ro.EMPTY_APP_ADJ 15 # Define the memory thresholds at which the above process classes will # be killed. These numbers are in pages (4k). setprop ro.FOREGROUND_APP_MEM 2048 setprop ro.VISIBLE_APP_MEM 3072 setprop ro.PERCEPTIBLE_APP_MEM 4096 setprop ro.HEAVY_WEIGHT_APP_MEM 4096 setprop ro.SECONDARY_SERVER_MEM 6144 setprop ro.BACKUP_APP_MEM 6144 setprop ro.HOME_APP_MEM 6144 setprop ro.HIDDEN_APP_MEM 7168 setprop ro.EMPTY_APP_MEM 8192 # Write value must be consistent with the above properties. # Note that the driver only supports 6 slots, so we have combined some of # the classes into the same memory level; the associated processes of higher # classes will still be killed first. write /sys/module/lowmemorykiller/parameters/adj 0,1,2,4,7,15 write /proc/sys/vm/overcommit_memory 1 write /proc/sys/vm/min_free_order_shift 4 write /sys/module/lowmemorykiller/parameters/minfree 2048,3072,4096,6144,7168,8192 # Set init its forked children's oom_adj. write /proc/1/oom_adj -16 # Tweak background writeout write /proc/sys/vm/dirty_writeback_centisecs 2000 write /proc/sys/vm/dirty_expire_centisecs 1000 write /proc/sys/vm/dirty_ratio 90 write /proc/sys/vm/dirty_background_ratio 5 # Permissions for System Server and daemons. chown radio system /sys/android_power/state chown radio system /sys/android_power/request_state chown radio system /sys/android_power/acquire_full_wake_lock chown radio system /sys/android_power/acquire_partial_wake_lock chown radio system /sys/android_power/release_wake_lock chown radio system /sys/power/state chown radio system /sys/power/wake_lock chown radio system /sys/power/wake_unlock chmod 0660 /sys/power/state chmod 0660 /sys/power/wake_lock chmod 0660 /sys/power/wake_unlock chown system system /sys/class/timed_output/vibrator/enable chown system system /sys/class/leds/keyboard-backlight/brightness chown system system /sys/class/leds/lcd-backlight/brightness chown system system /sys/class/leds/button-backlight/brightness chown system system /sys/class/leds/jogball-backlight/brightness chown system system /sys/class/leds/red/brightness chown system system /sys/class/leds/green/brightness chown system system /sys/class/leds/blue/brightness chown system system /sys/class/leds/red/device/grpfreq chown system system /sys/class/leds/red/device/grppwm chown system system /sys/class/leds/red/device/blink chown system system /sys/class/leds/red/brightness chown system system /sys/class/leds/green/brightness chown system system /sys/class/leds/blue/brightness chown system system /sys/class/leds/red/device/grpfreq chown system system /sys/class/leds/red/device/grppwm chown system system /sys/class/leds/red/device/blink chown system system /sys/class/timed_output/vibrator/enable chown system system /sys/module/sco/parameters/disable_esco chown system system /sys/kernel/ipv4/tcp_wmem_min chown system system /sys/kernel/ipv4/tcp_wmem_def chown system system /sys/kernel/ipv4/tcp_wmem_max chown system system /sys/kernel/ipv4/tcp_rmem_min chown system system /sys/kernel/ipv4/tcp_rmem_def chown system system /sys/kernel/ipv4/tcp_rmem_max chown root radio /proc/cmdline # Define TCP buffer sizes for various networks # ReadMin, ReadInitial, ReadMax, WriteMin, WriteInitial, WriteMax, setprop net.tcp.buffersize.default 4096,87380,110208,4096,16384,110208 setprop net.tcp.buffersize.wifi 4095,87380,110208,4096,16384,110208 setprop net.tcp.buffersize.umts 4094,87380,110208,4096,16384,110208 setprop net.tcp.buffersize.edge 4093,26280,35040,4096,16384,35040 setprop net.tcp.buffersize.gprs 4092,8760,11680,4096,8760,11680 class_start default ## Daemon processes to be run by init. ## service ueventd /sbin/ueventd critical # adbd is controlled by the persist.service.adb.enable system property service adbd /sbin/adbd disabled # adbd on at boot in emulator on property:ro.kernel.qemu=1 start adbd on property:persist.service.adb.enable=1 start adbd on property:persist.service.adb.enable=0 stop adbd