OpenWrt – Blame information for rev 1

Subversion Repositories:
Rev:
Rev Author Line No. Line
1 office 1 # DO NOT EDIT. This file is generated from Config.src
2 #
3 # For a description of the syntax of this configuration file,
4 # see docs/Kconfig-language.txt.
5 #
6  
7 menu "Init Utilities"
8  
9 config BUSYBOX_CONFIG_BOOTCHARTD
10 bool "bootchartd (10 kb)"
11 default BUSYBOX_DEFAULT_BOOTCHARTD
12 help
13 bootchartd is commonly used to profile the boot process
14 for the purpose of speeding it up. In this case, it is started
15 by the kernel as the init process. This is configured by adding
16 the init=/sbin/bootchartd option to the kernel command line.
17  
18 It can also be used to monitor the resource usage of a specific
19 application or the running system in general. In this case,
20 bootchartd is started interactively by running bootchartd start
21 and stopped using bootchartd stop.
22  
23 config BUSYBOX_CONFIG_FEATURE_BOOTCHARTD_BLOATED_HEADER
24 bool "Compatible, bloated header"
25 default BUSYBOX_DEFAULT_FEATURE_BOOTCHARTD_BLOATED_HEADER
26 depends on BUSYBOX_CONFIG_BOOTCHARTD
27 help
28 Create extended header file compatible with "big" bootchartd.
29 "Big" bootchartd is a shell script and it dumps some
30 "convenient" info into the header, such as:
31 title = Boot chart for `hostname` (`date`)
32 system.uname = `uname -srvm`
33 system.release = `cat /etc/DISTRO-release`
34 system.cpu = `grep '^model name' /proc/cpuinfo | head -1` ($cpucount)
35 system.kernel.options = `cat /proc/cmdline`
36 This data is not mandatory for bootchart graph generation,
37 and is considered bloat. Nevertheless, this option
38 makes bootchartd applet to dump a subset of it.
39  
40 config BUSYBOX_CONFIG_FEATURE_BOOTCHARTD_CONFIG_FILE
41 bool "Support bootchartd.conf"
42 default BUSYBOX_DEFAULT_FEATURE_BOOTCHARTD_CONFIG_FILE
43 depends on BUSYBOX_CONFIG_BOOTCHARTD
44 help
45 Enable reading and parsing of $PWD/bootchartd.conf
46 and /etc/bootchartd.conf files.
47 config BUSYBOX_CONFIG_HALT
48 bool "halt (4 kb)"
49 default BUSYBOX_DEFAULT_HALT
50 help
51 Stop all processes and halt the system.
52  
53 config BUSYBOX_CONFIG_POWEROFF
54 bool "poweroff (4 kb)"
55 default BUSYBOX_DEFAULT_POWEROFF
56 help
57 Stop all processes and power off the system.
58  
59 config BUSYBOX_CONFIG_REBOOT
60 bool "reboot (4 kb)"
61 default BUSYBOX_DEFAULT_REBOOT
62 help
63 Stop all processes and reboot the system.
64  
65 config BUSYBOX_CONFIG_FEATURE_WAIT_FOR_INIT
66 bool "Before signaling init, make sure it is ready for it"
67 default BUSYBOX_DEFAULT_FEATURE_WAIT_FOR_INIT
68 depends on BUSYBOX_CONFIG_HALT || BUSYBOX_CONFIG_POWEROFF || BUSYBOX_CONFIG_REBOOT
69 help
70 In rare cases, poweroff may be commanded by firmware to OS
71 even before init process exists. On Linux, this spawns
72 "/sbin/poweroff" very early. This option adds code
73 which checks that init is ready to receive poweroff
74 commands. Code size increase of ~80 bytes.
75  
76 config BUSYBOX_CONFIG_FEATURE_CALL_TELINIT
77 bool "Call telinit on shutdown and reboot"
78 default BUSYBOX_DEFAULT_FEATURE_CALL_TELINIT
79 depends on (BUSYBOX_CONFIG_HALT || BUSYBOX_CONFIG_POWEROFF || BUSYBOX_CONFIG_REBOOT) && !BUSYBOX_CONFIG_INIT
80 help
81 Call an external program (normally telinit) to facilitate
82 a switch to a proper runlevel.
83  
84 This option is only available if you selected halt and friends,
85 but did not select init.
86  
87 config BUSYBOX_CONFIG_TELINIT_PATH
88 string "Path to telinit executable"
89 default BUSYBOX_DEFAULT_TELINIT_PATH
90 depends on BUSYBOX_CONFIG_FEATURE_CALL_TELINIT
91 help
92 When busybox halt and friends have to call external telinit
93 to facilitate proper shutdown, this path is to be used when
94 locating telinit executable.
95 config BUSYBOX_CONFIG_INIT
96 bool "init (10 kb)"
97 default BUSYBOX_DEFAULT_INIT
98 select BUSYBOX_CONFIG_FEATURE_SYSLOG
99 help
100 init is the first program run when the system boots.
101  
102 config BUSYBOX_CONFIG_LINUXRC
103 bool "linuxrc: support running init from initrd (not initramfs)"
104 default BUSYBOX_DEFAULT_LINUXRC
105 select BUSYBOX_CONFIG_FEATURE_SYSLOG
106 help
107 Legacy support for running init under the old-style initrd. Allows
108 the name linuxrc to act as init, and it doesn't assume init is PID 1.
109  
110 This does not apply to initramfs, which runs /init as PID 1 and
111 requires no special support.
112  
113 config BUSYBOX_CONFIG_FEATURE_USE_INITTAB
114 bool "Support reading an inittab file"
115 default BUSYBOX_DEFAULT_FEATURE_USE_INITTAB
116 depends on BUSYBOX_CONFIG_INIT || BUSYBOX_CONFIG_LINUXRC
117 help
118 Allow init to read an inittab file when the system boot.
119  
120 config BUSYBOX_CONFIG_FEATURE_KILL_REMOVED
121 bool "Support killing processes that have been removed from inittab"
122 default BUSYBOX_DEFAULT_FEATURE_KILL_REMOVED
123 depends on BUSYBOX_CONFIG_FEATURE_USE_INITTAB
124 help
125 When respawn entries are removed from inittab and a SIGHUP is
126 sent to init, this option will make init kill the processes
127 that have been removed.
128  
129 config BUSYBOX_CONFIG_FEATURE_KILL_DELAY
130 int "How long to wait between TERM and KILL (0 - send TERM only)" if FEATURE_KILL_REMOVED
131 range 0 1024
132 default BUSYBOX_DEFAULT_FEATURE_KILL_DELAY
133 depends on BUSYBOX_CONFIG_FEATURE_KILL_REMOVED
134 help
135 With nonzero setting, init sends TERM, forks, child waits N
136 seconds, sends KILL and exits. Setting it too high is unwise
137 (child will hang around for too long and could actually kill
138 the wrong process!)
139  
140 config BUSYBOX_CONFIG_FEATURE_INIT_SCTTY
141 bool "Run commands with leading dash with controlling tty"
142 default BUSYBOX_DEFAULT_FEATURE_INIT_SCTTY
143 depends on BUSYBOX_CONFIG_INIT || BUSYBOX_CONFIG_LINUXRC
144 help
145 If this option is enabled, init will try to give a controlling
146 tty to any command which has leading hyphen (often it's "-/bin/sh").
147 More precisely, init will do "ioctl(STDIN_FILENO, TIOCSCTTY, 0)".
148 If device attached to STDIN_FILENO can be a ctty but is not yet
149 a ctty for other session, it will become this process' ctty.
150 This is not the traditional init behavour, but is often what you want
151 in an embedded system where the console is only accessed during
152 development or for maintenance.
153 NB: using cttyhack applet may work better.
154  
155 config BUSYBOX_CONFIG_FEATURE_INIT_SYSLOG
156 bool "Enable init to write to syslog"
157 default BUSYBOX_DEFAULT_FEATURE_INIT_SYSLOG
158 depends on BUSYBOX_CONFIG_INIT || BUSYBOX_CONFIG_LINUXRC
159 help
160 If selected, some init messages are sent to syslog.
161 Otherwise, they are sent to VT #5 if linux virtual tty is detected
162 (if not, no separate logging is done).
163  
164 config BUSYBOX_CONFIG_FEATURE_INIT_QUIET
165 bool "Be quiet on boot (no 'init started:' message)"
166 default BUSYBOX_DEFAULT_FEATURE_INIT_QUIET
167 depends on BUSYBOX_CONFIG_INIT || BUSYBOX_CONFIG_LINUXRC
168  
169 config BUSYBOX_CONFIG_FEATURE_INIT_COREDUMPS
170 bool "Support dumping core for child processes (debugging only)"
171 default BUSYBOX_DEFAULT_FEATURE_INIT_COREDUMPS # not Y because this is a debug option
172 depends on BUSYBOX_CONFIG_INIT || BUSYBOX_CONFIG_LINUXRC
173 help
174 If this option is enabled and the file /.init_enable_core
175 exists, then init will call setrlimit() to allow unlimited
176 core file sizes. If this option is disabled, processes
177 will not generate any core files.
178  
179 config BUSYBOX_CONFIG_INIT_TERMINAL_TYPE
180 string "Initial terminal type"
181 default BUSYBOX_DEFAULT_INIT_TERMINAL_TYPE
182 depends on BUSYBOX_CONFIG_INIT || BUSYBOX_CONFIG_LINUXRC
183 help
184 This is the initial value set by init for the TERM environment
185 variable. This variable is used by programs which make use of
186 extended terminal capabilities.
187  
188 Note that on Linux, init attempts to detect serial terminal and
189 sets TERM to "vt102" if one is found.
190  
191 config BUSYBOX_CONFIG_FEATURE_INIT_MODIFY_CMDLINE
192 bool "Clear init's command line"
193 default BUSYBOX_DEFAULT_FEATURE_INIT_MODIFY_CMDLINE
194 depends on BUSYBOX_CONFIG_INIT || BUSYBOX_CONFIG_LINUXRC
195 help
196 When launched as PID 1 and after parsing its arguments, init
197 wipes all the arguments but argv[0] and rewrites argv[0] to
198 contain only "init", so that its command line appears solely as
199 "init" in tools such as ps.
200 If this option is set to Y, init will keep its original behavior,
201 otherwise, all the arguments including argv[0] will be preserved,
202 be they parsed or ignored by init.
203 The original command-line used to launch init can then be
204 retrieved in /proc/1/cmdline on Linux, for example.
205  
206 endmenu