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- # DO NOT EDIT. This file is generated from Config.src
- #
- # For a description of the syntax of this configuration file,
- # see docs/Kconfig-language.txt.
- #
- menu "Init Utilities"
- config BUSYBOX_BOOTCHARTD
- bool "bootchartd (10 kb)"
- default y
- help
- bootchartd is commonly used to profile the boot process
- for the purpose of speeding it up. In this case, it is started
- by the kernel as the init process. This is configured by adding
- the init=/sbin/bootchartd option to the kernel command line.
- It can also be used to monitor the resource usage of a specific
- application or the running system in general. In this case,
- bootchartd is started interactively by running bootchartd start
- and stopped using bootchartd stop.
- config BUSYBOX_FEATURE_BOOTCHARTD_BLOATED_HEADER
- bool "Compatible, bloated header"
- default y
- depends on BUSYBOX_BOOTCHARTD
- help
- Create extended header file compatible with "big" bootchartd.
- "Big" bootchartd is a shell script and it dumps some
- "convenient" info into the header, such as:
- title = Boot chart for `hostname` (`date`)
- system.uname = `uname -srvm`
- system.release = `cat /etc/DISTRO-release`
- system.cpu = `grep '^model name' /proc/cpuinfo | head -1` ($cpucount)
- system.kernel.options = `cat /proc/cmdline`
- This data is not mandatory for bootchart graph generation,
- and is considered bloat. Nevertheless, this option
- makes bootchartd applet to dump a subset of it.
- config BUSYBOX_FEATURE_BOOTCHARTD_CONFIG_FILE
- bool "Support bootchartd.conf"
- default y
- depends on BUSYBOX_BOOTCHARTD
- help
- Enable reading and parsing of $PWD/bootchartd.conf
- and /etc/bootchartd.conf files.
- config BUSYBOX_HALT
- bool "halt (4 kb)"
- default y
- help
- Stop all processes and halt the system.
- config BUSYBOX_POWEROFF
- bool "poweroff (4 kb)"
- default y
- help
- Stop all processes and power off the system.
- config BUSYBOX_REBOOT
- bool "reboot (4 kb)"
- default y
- help
- Stop all processes and reboot the system.
- config BUSYBOX_FEATURE_WAIT_FOR_INIT
- bool "Before signaling init, make sure it is ready for it"
- default y
- depends on BUSYBOX_HALT || BUSYBOX_POWEROFF || BUSYBOX_REBOOT
- help
- In rare cases, poweroff may be commanded by firmware to OS
- even before init process exists. On Linux, this spawns
- "/sbin/poweroff" very early. This option adds code
- which checks that init is ready to receive poweroff
- commands. Code size increase of ~80 bytes.
- config BUSYBOX_FEATURE_CALL_TELINIT
- bool "Call telinit on shutdown and reboot"
- default y
- depends on (BUSYBOX_HALT || BUSYBOX_POWEROFF || BUSYBOX_REBOOT) && !BUSYBOX_INIT
- help
- Call an external program (normally telinit) to facilitate
- a switch to a proper runlevel.
- This option is only available if you selected halt and friends,
- but did not select init.
- config BUSYBOX_TELINIT_PATH
- string "Path to telinit executable"
- default "/sbin/telinit"
- depends on BUSYBOX_FEATURE_CALL_TELINIT
- help
- When busybox halt and friends have to call external telinit
- to facilitate proper shutdown, this path is to be used when
- locating telinit executable.
- config BUSYBOX_INIT
- bool "init (10 kb)"
- default y
- select BUSYBOX_FEATURE_SYSLOG
- help
- init is the first program run when the system boots.
- config BUSYBOX_LINUXRC
- bool "linuxrc: support running init from initrd (not initramfs)"
- default y
- select BUSYBOX_FEATURE_SYSLOG
- help
- Legacy support for running init under the old-style initrd. Allows
- the name linuxrc to act as init, and it doesn't assume init is PID 1.
- This does not apply to initramfs, which runs /init as PID 1 and
- requires no special support.
- config BUSYBOX_FEATURE_USE_INITTAB
- bool "Support reading an inittab file"
- default y
- depends on BUSYBOX_INIT || BUSYBOX_LINUXRC
- help
- Allow init to read an inittab file when the system boot.
- config BUSYBOX_FEATURE_KILL_REMOVED
- bool "Support killing processes that have been removed from inittab"
- default n
- depends on BUSYBOX_FEATURE_USE_INITTAB
- help
- When respawn entries are removed from inittab and a SIGHUP is
- sent to init, this option will make init kill the processes
- that have been removed.
- config BUSYBOX_FEATURE_KILL_DELAY
- int "How long to wait between TERM and KILL (0 - send TERM only)" if FEATURE_KILL_REMOVED
- range 0 1024
- default 0
- depends on BUSYBOX_FEATURE_KILL_REMOVED
- help
- With nonzero setting, init sends TERM, forks, child waits N
- seconds, sends KILL and exits. Setting it too high is unwise
- (child will hang around for too long and could actually kill
- the wrong process!)
- config BUSYBOX_FEATURE_INIT_SCTTY
- bool "Run commands with leading dash with controlling tty"
- default y
- depends on BUSYBOX_INIT || BUSYBOX_LINUXRC
- help
- If this option is enabled, init will try to give a controlling
- tty to any command which has leading hyphen (often it's "-/bin/sh").
- More precisely, init will do "ioctl(STDIN_FILENO, TIOCSCTTY, 0)".
- If device attached to STDIN_FILENO can be a ctty but is not yet
- a ctty for other session, it will become this process' ctty.
- This is not the traditional init behavour, but is often what you want
- in an embedded system where the console is only accessed during
- development or for maintenance.
- NB: using cttyhack applet may work better.
- config BUSYBOX_FEATURE_INIT_SYSLOG
- bool "Enable init to write to syslog"
- default y
- depends on BUSYBOX_INIT || BUSYBOX_LINUXRC
- help
- If selected, some init messages are sent to syslog.
- Otherwise, they are sent to VT #5 if linux virtual tty is detected
- (if not, no separate logging is done).
- config BUSYBOX_FEATURE_INIT_QUIET
- bool "Be quiet on boot (no 'init started:' message)"
- default y
- depends on BUSYBOX_INIT || BUSYBOX_LINUXRC
- config BUSYBOX_FEATURE_INIT_COREDUMPS
- bool "Support dumping core for child processes (debugging only)"
- default n # not Y because this is a debug option
- depends on BUSYBOX_INIT || BUSYBOX_LINUXRC
- help
- If this option is enabled and the file /.init_enable_core
- exists, then init will call setrlimit() to allow unlimited
- core file sizes. If this option is disabled, processes
- will not generate any core files.
- config BUSYBOX_INIT_TERMINAL_TYPE
- string "Initial terminal type"
- default "linux"
- depends on BUSYBOX_INIT || BUSYBOX_LINUXRC
- help
- This is the initial value set by init for the TERM environment
- variable. This variable is used by programs which make use of
- extended terminal capabilities.
- Note that on Linux, init attempts to detect serial terminal and
- sets TERM to "vt102" if one is found.
- config BUSYBOX_FEATURE_INIT_MODIFY_CMDLINE
- bool "Clear init's command line"
- default y
- depends on BUSYBOX_INIT || BUSYBOX_LINUXRC
- help
- When launched as PID 1 and after parsing its arguments, init
- wipes all the arguments but argv[0] and rewrites argv[0] to
- contain only "init", so that its command line appears solely as
- "init" in tools such as ps.
- If this option is set to Y, init will keep its original behavior,
- otherwise, all the arguments including argv[0] will be preserved,
- be they parsed or ignored by init.
- The original command-line used to launch init can then be
- retrieved in /proc/1/cmdline on Linux, for example.
- endmenu
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