mirror of
https://github.com/sheumann/hush.git
synced 2024-12-22 14:30:31 +00:00
ff027d6f50
Usage: bootchartd start [PROG ARGS]|init|stop Create /var/log/bootchart.tgz with boot chart data Options: start: start background logging; with PROG, run PROG, then kill logging with USR1 stop: send USR1 to all bootchartd processes init: start background logging; stop when getty/gdm is seen (for init scripts) Under PID 1: as init, then exec $bootchart_init, /init, /sbin/init function old new delta bootchartd_main - 907 +907 dump_procs - 353 +353 packed_usage 26566 26735 +169 dump_file - 91 +91 static.dirs - 23 +23 applet_names 2176 2187 +11 applet_main 1284 1288 +4 applet_nameofs 642 644 +2 ------------------------------------------------------------------------------ (add/remove: 5/0 grow/shrink: 4/0 up/down: 1560/0) Total: 1560 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
138 lines
4.1 KiB
Plaintext
138 lines
4.1 KiB
Plaintext
#
|
|
# For a description of the syntax of this configuration file,
|
|
# see scripts/kbuild/config-language.txt.
|
|
#
|
|
|
|
menu "Init Utilities"
|
|
|
|
config INIT
|
|
bool "init"
|
|
default n
|
|
select FEATURE_SYSLOG
|
|
help
|
|
init is the first program run when the system boots.
|
|
|
|
config FEATURE_USE_INITTAB
|
|
bool "Support reading an inittab file"
|
|
default y
|
|
depends on INIT
|
|
help
|
|
Allow init to read an inittab file when the system boot.
|
|
|
|
config FEATURE_KILL_REMOVED
|
|
bool "Support killing processes that have been removed from inittab"
|
|
default y
|
|
depends on FEATURE_USE_INITTAB
|
|
help
|
|
When respawn entries are removed from inittab and a SIGHUP is
|
|
sent to init, this feature will kill the processes that have
|
|
been removed.
|
|
|
|
config 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 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 FEATURE_INIT_SCTTY
|
|
bool "Run commands with leading dash with controlling tty"
|
|
default n
|
|
depends on INIT
|
|
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 FEATURE_INIT_SYSLOG
|
|
bool "Enable init to write to syslog"
|
|
default n
|
|
depends on INIT
|
|
|
|
config FEATURE_EXTRA_QUIET
|
|
bool "Be _extra_ quiet on boot"
|
|
default y
|
|
depends on INIT
|
|
help
|
|
Prevent init from logging some messages to the console during boot.
|
|
|
|
config FEATURE_INIT_COREDUMPS
|
|
bool "Support dumping core for child processes (debugging only)"
|
|
default n
|
|
depends on INIT
|
|
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 FEATURE_INITRD
|
|
bool "Support running init from within an initrd (not initramfs)"
|
|
default y
|
|
depends on INIT
|
|
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 HALT
|
|
bool "poweroff, halt, and reboot"
|
|
default n
|
|
help
|
|
Stop all processes and either halt, reboot, or power off the system.
|
|
|
|
config FEATURE_CALL_TELINIT
|
|
bool "Call telinit on shutdown and reboot"
|
|
default n
|
|
depends on HALT && !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 TELINIT_PATH
|
|
string "Path to telinit executable"
|
|
default "/sbin/telinit"
|
|
depends on 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 MESG
|
|
bool "mesg"
|
|
default n
|
|
help
|
|
Mesg controls access to your terminal by others. It is typically
|
|
used to allow or disallow other users to write to your terminal
|
|
|
|
config BOOTCHARTD
|
|
bool "bootchartd"
|
|
default n
|
|
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.
|
|
|
|
endmenu
|