package/busybox/config/init/Config.in

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see scripts/kbuild/config-language.txt.
   4 #
   5
   6 menu "Init Utilities"
   7
   8 config BUSYBOX_CONFIG_INIT
   9         bool "init"
  10         default y
  11         select BUSYBOX_CONFIG_FEATURE_SYSLOG
  12         help
  13           init is the first program run when the system boots.
  14
  15 config BUSYBOX_CONFIG_FEATURE_USE_INITTAB
  16         bool "Support reading an inittab file"
  17         default y
  18         depends on BUSYBOX_CONFIG_INIT
  19         help
  20           Allow init to read an inittab file when the system boot.
  21
  22 config BUSYBOX_CONFIG_FEATURE_KILL_REMOVED
  23         bool "Support killing processes that have been removed from inittab"
  24         default n
  25         depends on BUSYBOX_CONFIG_FEATURE_USE_INITTAB
  26         help
  27           When respawn entries are removed from inittab and a SIGHUP is
  28           sent to init, this feature will kill the processes that have
  29           been removed.
  30
  31 config BUSYBOX_CONFIG_FEATURE_KILL_DELAY
  32         int "How long to wait between TERM and KILL (0 - send TERM only)" if FEATURE_KILL_REMOVED
  33         range 0 1024
  34         default 0
  35         help
  36           With nonzero setting, init sends TERM, forks, child waits N
  37           seconds, sends KILL and exits. Setting it too high is unwise
  38           (child will hang around for too long and can actually kill
  39           wrong process!)
  40
  41 config BUSYBOX_CONFIG_FEATURE_INIT_SCTTY
  42         bool "Run commands with leading dash with controlling tty"
  43         default n
  44         depends on BUSYBOX_CONFIG_INIT
  45         help
  46           If this option is enabled, init will try to give a controlling
  47           tty to any command which has leading hyphen (often it's "-/bin/sh").
  48           More precisely, init will do "ioctl(STDIN_FILENO, TIOCSCTTY, 0)".
  49           If device attached to STDIN_FILENO can be a ctty but is not yet
  50           a ctty for other session, it will become this process' ctty.
  51           This is not the traditional init behavour, but is often what you want
  52           in an embedded system where the console is only accessed during
  53           development or for maintenance.
  54           NB: using cttyhack applet may work better.
  55
  56 config BUSYBOX_CONFIG_FEATURE_INIT_SYSLOG
  57         bool "Enable init to write to syslog"
  58         default y
  59         depends on BUSYBOX_CONFIG_INIT
  60
  61 config BUSYBOX_CONFIG_FEATURE_EXTRA_QUIET
  62         bool "Be _extra_ quiet on boot"
  63         default n
  64         depends on BUSYBOX_CONFIG_INIT
  65         help
  66           Prevent init from logging some messages to the console during boot.
  67
  68 config BUSYBOX_CONFIG_FEATURE_INIT_COREDUMPS
  69         bool "Support dumping core for child processes (debugging only)"
  70         default n
  71         depends on BUSYBOX_CONFIG_INIT
  72         help
  73           If this option is enabled and the file /.init_enable_core
  74           exists, then init will call setrlimit() to allow unlimited
  75           core file sizes. If this option is disabled, processes
  76           will not generate any core files.
  77
  78 config BUSYBOX_CONFIG_FEATURE_INITRD
  79         bool "Support running init from within an initrd (not initramfs)"
  80         default n
  81         depends on BUSYBOX_CONFIG_INIT
  82         help
  83           Legacy support for running init under the old-style initrd. Allows
  84           the name linuxrc to act as init, and it doesn't assume init is PID 1.
  85
  86           This does not apply to initramfs, which runs /init as PID 1 and
  87           requires no special support.
  88
  89 config BUSYBOX_CONFIG_HALT
  90         bool "poweroff, halt, and reboot"
  91         default y
  92         help
  93           Stop all processes and either halt, reboot, or power off the system.
  94
  95 config BUSYBOX_CONFIG_MESG
  96         bool "mesg"
  97         default y
  98         help
  99           Mesg controls access to your terminal by others. It is typically
 100           used to allow or disallow other users to write to your terminal
 101
 102 endmenu