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_BOOTCHARTD
   9         bool "bootchartd"
  10         default n
  11         help
  12           bootchartd is commonly used to profile the boot process
  13           for the purpose of speeding it up. In this case, it is started
  14           by the kernel as the init process. This is configured by adding
  15           the init=/sbin/bootchartd option to the kernel command line.
  16
  17           It can also be used to monitor the resource usage of a specific
  18           application or the running system in general. In this case,
  19           bootchartd is started interactively by running bootchartd start
  20           and stopped using bootchartd stop.
  21
  22 config BUSYBOX_CONFIG_FEATURE_BOOTCHARTD_BLOATED_HEADER
  23         bool "Compatible, bloated header"
  24         default n
  25         depends on BUSYBOX_CONFIG_BOOTCHARTD
  26         help
  27           Create extended header file compatible with "big" bootchartd.
  28           "Big" bootchartd is a shell script and it dumps some
  29           "convenient" info int the header, such as:
  30             title = Boot chart for `hostname` (`date`)
  31             system.uname = `uname -srvm`
  32             system.release = `cat /etc/DISTRO-release`
  33             system.cpu = `grep '^model name' /proc/cpuinfo | head -1` ($cpucount)
  34             system.kernel.options = `cat /proc/cmdline`
  35           This data is not mandatory for bootchart graph generation,
  36           and is considered bloat. Nevertheless, this option
  37           makes bootchartd applet to dump a subset of it.
  38
  39 config BUSYBOX_CONFIG_FEATURE_BOOTCHARTD_CONFIG_FILE
  40         bool "Support bootchartd.conf"
  41         default n
  42         depends on BUSYBOX_CONFIG_BOOTCHARTD
  43         help
  44           Enable reading and parsing of $PWD/bootchartd.conf
  45           and /etc/bootchartd.conf files.
  46
  47 config BUSYBOX_CONFIG_INIT
  48         bool "init"
  49         default y
  50         select BUSYBOX_CONFIG_FEATURE_SYSLOG
  51         help
  52           init is the first program run when the system boots.
  53
  54 config BUSYBOX_CONFIG_FEATURE_USE_INITTAB
  55         bool "Support reading an inittab file"
  56         default y
  57         depends on BUSYBOX_CONFIG_INIT
  58         help
  59           Allow init to read an inittab file when the system boot.
  60
  61 config BUSYBOX_CONFIG_FEATURE_KILL_REMOVED
  62         bool "Support killing processes that have been removed from inittab"
  63         default n
  64         depends on BUSYBOX_CONFIG_FEATURE_USE_INITTAB
  65         help
  66           When respawn entries are removed from inittab and a SIGHUP is
  67           sent to init, this option will make init kill the processes
  68           that have been removed.
  69
  70 config BUSYBOX_CONFIG_FEATURE_KILL_DELAY
  71         int "How long to wait between TERM and KILL (0 - send TERM only)" if FEATURE_KILL_REMOVED
  72         range 0 1024
  73         default 0
  74         depends on BUSYBOX_CONFIG_FEATURE_KILL_REMOVED
  75         help
  76           With nonzero setting, init sends TERM, forks, child waits N
  77           seconds, sends KILL and exits. Setting it too high is unwise
  78           (child will hang around for too long and could actually kill
  79           the wrong process!)
  80
  81 config BUSYBOX_CONFIG_FEATURE_INIT_SCTTY
  82         bool "Run commands with leading dash with controlling tty"
  83         default n
  84         depends on BUSYBOX_CONFIG_INIT
  85         help
  86           If this option is enabled, init will try to give a controlling
  87           tty to any command which has leading hyphen (often it's "-/bin/sh").
  88           More precisely, init will do "ioctl(STDIN_FILENO, TIOCSCTTY, 0)".
  89           If device attached to STDIN_FILENO can be a ctty but is not yet
  90           a ctty for other session, it will become this process' ctty.
  91           This is not the traditional init behavour, but is often what you want
  92           in an embedded system where the console is only accessed during
  93           development or for maintenance.
  94           NB: using cttyhack applet may work better.
  95
  96 config BUSYBOX_CONFIG_FEATURE_INIT_SYSLOG
  97         bool "Enable init to write to syslog"
  98         default y
  99         depends on BUSYBOX_CONFIG_INIT
 100
 101 config BUSYBOX_CONFIG_FEATURE_EXTRA_QUIET
 102         bool "Be _extra_ quiet on boot"
 103         default n
 104         depends on BUSYBOX_CONFIG_INIT
 105         help
 106           Prevent init from logging some messages to the console during boot.
 107
 108 config BUSYBOX_CONFIG_FEATURE_INIT_COREDUMPS
 109         bool "Support dumping core for child processes (debugging only)"
 110         default n
 111         depends on BUSYBOX_CONFIG_INIT
 112         help
 113           If this option is enabled and the file /.init_enable_core
 114           exists, then init will call setrlimit() to allow unlimited
 115           core file sizes. If this option is disabled, processes
 116           will not generate any core files.
 117
 118 config BUSYBOX_CONFIG_FEATURE_INITRD
 119         bool "Support running init from within an initrd (not initramfs)"
 120         default n
 121         depends on BUSYBOX_CONFIG_INIT
 122         help
 123           Legacy support for running init under the old-style initrd. Allows
 124           the name linuxrc to act as init, and it doesn't assume init is PID 1.
 125
 126           This does not apply to initramfs, which runs /init as PID 1 and
 127           requires no special support.
 128
 129 config BUSYBOX_CONFIG_HALT
 130         bool "poweroff, halt, and reboot"
 131         default y
 132         help
 133           Stop all processes and either halt, reboot, or power off the system.
 134
 135 config BUSYBOX_CONFIG_FEATURE_CALL_TELINIT
 136         bool "Call telinit on shutdown and reboot"
 137         default n
 138         depends on BUSYBOX_CONFIG_HALT && !BUSYBOX_CONFIG_INIT
 139         help
 140           Call an external program (normally telinit) to facilitate
 141           a switch to a proper runlevel.
 142
 143           This option is only available if you selected halt and friends,
 144           but did not select init.
 145
 146 config BUSYBOX_CONFIG_TELINIT_PATH
 147         string "Path to telinit executable"
 148         default "/sbin/telinit"
 149         depends on BUSYBOX_CONFIG_FEATURE_CALL_TELINIT
 150         help
 151           When busybox halt and friends have to call external telinit
 152           to facilitate proper shutdown, this path is to be used when
 153           locating telinit executable.
 154
 155 config BUSYBOX_CONFIG_MESG
 156         bool "mesg"
 157         default y
 158         help
 159           Mesg controls access to your terminal by others. It is typically
 160           used to allow or disallow other users to write to your terminal
 161
 162 endmenu