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 config BUSYBOX_CONFIG_HALT
  47         bool "poweroff, halt, and reboot"
  48         default y
  49         help
  50           Stop all processes and either halt, reboot, or power off the system.
  51
  52 config BUSYBOX_CONFIG_FEATURE_CALL_TELINIT
  53         bool "Call telinit on shutdown and reboot"
  54         default n
  55         depends on BUSYBOX_CONFIG_HALT && !BUSYBOX_CONFIG_INIT
  56         help
  57           Call an external program (normally telinit) to facilitate
  58           a switch to a proper runlevel.
  59
  60           This option is only available if you selected halt and friends,
  61           but did not select init.
  62
  63 config BUSYBOX_CONFIG_TELINIT_PATH
  64         string "Path to telinit executable"
  65         default "/sbin/telinit"
  66         depends on BUSYBOX_CONFIG_FEATURE_CALL_TELINIT
  67         help
  68           When busybox halt and friends have to call external telinit
  69           to facilitate proper shutdown, this path is to be used when
  70           locating telinit executable.
  71 config BUSYBOX_CONFIG_INIT
  72         bool "init"
  73         default y
  74         select BUSYBOX_CONFIG_FEATURE_SYSLOG
  75         help
  76           init is the first program run when the system boots.
  77
  78 config BUSYBOX_CONFIG_FEATURE_USE_INITTAB
  79         bool "Support reading an inittab file"
  80         default y
  81         depends on BUSYBOX_CONFIG_INIT
  82         help
  83           Allow init to read an inittab file when the system boot.
  84
  85 config BUSYBOX_CONFIG_FEATURE_KILL_REMOVED
  86         bool "Support killing processes that have been removed from inittab"
  87         default n
  88         depends on BUSYBOX_CONFIG_FEATURE_USE_INITTAB
  89         help
  90           When respawn entries are removed from inittab and a SIGHUP is
  91           sent to init, this option will make init kill the processes
  92           that have been removed.
  93
  94 config BUSYBOX_CONFIG_FEATURE_KILL_DELAY
  95         int "How long to wait between TERM and KILL (0 - send TERM only)" if FEATURE_KILL_REMOVED
  96         range 0 1024
  97         default 0
  98         depends on BUSYBOX_CONFIG_FEATURE_KILL_REMOVED
  99         help
 100           With nonzero setting, init sends TERM, forks, child waits N
 101           seconds, sends KILL and exits. Setting it too high is unwise
 102           (child will hang around for too long and could actually kill
 103           the wrong process!)
 104
 105 config BUSYBOX_CONFIG_FEATURE_INIT_SCTTY
 106         bool "Run commands with leading dash with controlling tty"
 107         default n
 108         depends on BUSYBOX_CONFIG_INIT
 109         help
 110           If this option is enabled, init will try to give a controlling
 111           tty to any command which has leading hyphen (often it's "-/bin/sh").
 112           More precisely, init will do "ioctl(STDIN_FILENO, TIOCSCTTY, 0)".
 113           If device attached to STDIN_FILENO can be a ctty but is not yet
 114           a ctty for other session, it will become this process' ctty.
 115           This is not the traditional init behavour, but is often what you want
 116           in an embedded system where the console is only accessed during
 117           development or for maintenance.
 118           NB: using cttyhack applet may work better.
 119
 120 config BUSYBOX_CONFIG_FEATURE_INIT_SYSLOG
 121         bool "Enable init to write to syslog"
 122         default y
 123         depends on BUSYBOX_CONFIG_INIT
 124
 125 config BUSYBOX_CONFIG_FEATURE_EXTRA_QUIET
 126         bool "Be _extra_ quiet on boot"
 127         default n
 128         depends on BUSYBOX_CONFIG_INIT
 129         help
 130           Prevent init from logging some messages to the console during boot.
 131
 132 config BUSYBOX_CONFIG_FEATURE_INIT_COREDUMPS
 133         bool "Support dumping core for child processes (debugging only)"
 134         default n
 135         depends on BUSYBOX_CONFIG_INIT
 136         help
 137           If this option is enabled and the file /.init_enable_core
 138           exists, then init will call setrlimit() to allow unlimited
 139           core file sizes. If this option is disabled, processes
 140           will not generate any core files.
 141
 142 config BUSYBOX_CONFIG_FEATURE_INITRD
 143         bool "Support running init from within an initrd (not initramfs)"
 144         default n
 145         depends on BUSYBOX_CONFIG_INIT
 146         help
 147           Legacy support for running init under the old-style initrd. Allows
 148           the name linuxrc to act as init, and it doesn't assume init is PID 1.
 149
 150           This does not apply to initramfs, which runs /init as PID 1 and
 151           requires no special support.
 152
 153 config BUSYBOX_CONFIG_INIT_TERMINAL_TYPE
 154         string "Initial terminal type"
 155         default "linux"
 156         depends on BUSYBOX_CONFIG_INIT
 157         help
 158           This is the initial value set by init for the TERM environment
 159           variable. This variable is used by programs which make use of
 160           extended terminal capabilities.
 161
 162           Note that on Linux, init attempts to detect serial terminal and
 163           sets TERM to "vt102" if one is found.
 164 config BUSYBOX_CONFIG_MESG
 165         bool "mesg"
 166         default y
 167         help
 168           Mesg controls access to your terminal by others. It is typically
 169           used to allow or disallow other users to write to your terminal
 170
 171 endmenu