Config.in 6.1 KB

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  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 scripts/kbuild/config-language.txt.
  5. #
  6. menu "Init Utilities"
  7. config BOOTCHARTD
  8. bool "bootchartd (10 kb)"
  9. default y
  10. help
  11. bootchartd is commonly used to profile the boot process
  12. for the purpose of speeding it up. In this case, it is started
  13. by the kernel as the init process. This is configured by adding
  14. the init=/sbin/bootchartd option to the kernel command line.
  15. It can also be used to monitor the resource usage of a specific
  16. application or the running system in general. In this case,
  17. bootchartd is started interactively by running bootchartd start
  18. and stopped using bootchartd stop.
  19. config FEATURE_BOOTCHARTD_BLOATED_HEADER
  20. bool "Compatible, bloated header"
  21. default y
  22. depends on BOOTCHARTD
  23. help
  24. Create extended header file compatible with "big" bootchartd.
  25. "Big" bootchartd is a shell script and it dumps some
  26. "convenient" info int the header, such as:
  27. title = Boot chart for `hostname` (`date`)
  28. system.uname = `uname -srvm`
  29. system.release = `cat /etc/DISTRO-release`
  30. system.cpu = `grep '^model name' /proc/cpuinfo | head -1` ($cpucount)
  31. system.kernel.options = `cat /proc/cmdline`
  32. This data is not mandatory for bootchart graph generation,
  33. and is considered bloat. Nevertheless, this option
  34. makes bootchartd applet to dump a subset of it.
  35. config FEATURE_BOOTCHARTD_CONFIG_FILE
  36. bool "Support bootchartd.conf"
  37. default y
  38. depends on BOOTCHARTD
  39. help
  40. Enable reading and parsing of $PWD/bootchartd.conf
  41. and /etc/bootchartd.conf files.
  42. config HALT
  43. bool "halt (3.7 kb)"
  44. default y
  45. help
  46. Stop all processes and halt the system.
  47. config POWEROFF
  48. bool "poweroff (3.7 kb)"
  49. default y
  50. help
  51. Stop all processes and power off the system.
  52. config REBOOT
  53. bool "reboot (3.7 kb)"
  54. default y
  55. help
  56. Stop all processes and reboot the system.
  57. config FEATURE_CALL_TELINIT
  58. bool "Call telinit on shutdown and reboot"
  59. default y
  60. depends on (HALT || POWEROFF || REBOOT) && !INIT
  61. help
  62. Call an external program (normally telinit) to facilitate
  63. a switch to a proper runlevel.
  64. This option is only available if you selected halt and friends,
  65. but did not select init.
  66. config TELINIT_PATH
  67. string "Path to telinit executable"
  68. default "/sbin/telinit"
  69. depends on FEATURE_CALL_TELINIT
  70. help
  71. When busybox halt and friends have to call external telinit
  72. to facilitate proper shutdown, this path is to be used when
  73. locating telinit executable.
  74. config INIT
  75. bool "init (9.3 kb)"
  76. default y
  77. select FEATURE_SYSLOG
  78. help
  79. init is the first program run when the system boots.
  80. config LINUXRC
  81. bool "linuxrc: support running init from initrd (not initramfs)"
  82. default y
  83. select FEATURE_SYSLOG
  84. help
  85. Legacy support for running init under the old-style initrd. Allows
  86. the name linuxrc to act as init, and it doesn't assume init is PID 1.
  87. This does not apply to initramfs, which runs /init as PID 1 and
  88. requires no special support.
  89. config FEATURE_USE_INITTAB
  90. bool "Support reading an inittab file"
  91. default y
  92. depends on INIT || LINUXRC
  93. help
  94. Allow init to read an inittab file when the system boot.
  95. config FEATURE_KILL_REMOVED
  96. bool "Support killing processes that have been removed from inittab"
  97. default n
  98. depends on FEATURE_USE_INITTAB
  99. help
  100. When respawn entries are removed from inittab and a SIGHUP is
  101. sent to init, this option will make init kill the processes
  102. that have been removed.
  103. config FEATURE_KILL_DELAY
  104. int "How long to wait between TERM and KILL (0 - send TERM only)" if FEATURE_KILL_REMOVED
  105. range 0 1024
  106. default 0
  107. depends on FEATURE_KILL_REMOVED
  108. help
  109. With nonzero setting, init sends TERM, forks, child waits N
  110. seconds, sends KILL and exits. Setting it too high is unwise
  111. (child will hang around for too long and could actually kill
  112. the wrong process!)
  113. config FEATURE_INIT_SCTTY
  114. bool "Run commands with leading dash with controlling tty"
  115. default y
  116. depends on INIT || LINUXRC
  117. help
  118. If this option is enabled, init will try to give a controlling
  119. tty to any command which has leading hyphen (often it's "-/bin/sh").
  120. More precisely, init will do "ioctl(STDIN_FILENO, TIOCSCTTY, 0)".
  121. If device attached to STDIN_FILENO can be a ctty but is not yet
  122. a ctty for other session, it will become this process' ctty.
  123. This is not the traditional init behavour, but is often what you want
  124. in an embedded system where the console is only accessed during
  125. development or for maintenance.
  126. NB: using cttyhack applet may work better.
  127. config FEATURE_INIT_SYSLOG
  128. bool "Enable init to write to syslog"
  129. default y
  130. depends on INIT || LINUXRC
  131. help
  132. If selected, some init messages are sent to syslog.
  133. Otherwise, they are sent to VT #5 if linux virtual tty is detected
  134. (if not, no separate logging is done).
  135. config FEATURE_INIT_QUIET
  136. bool "Be quiet on boot (no 'init started:' message)"
  137. default y
  138. depends on INIT || LINUXRC
  139. config FEATURE_INIT_COREDUMPS
  140. bool "Support dumping core for child processes (debugging only)"
  141. default n # not Y because this is a debug option
  142. depends on INIT || LINUXRC
  143. help
  144. If this option is enabled and the file /.init_enable_core
  145. exists, then init will call setrlimit() to allow unlimited
  146. core file sizes. If this option is disabled, processes
  147. will not generate any core files.
  148. config INIT_TERMINAL_TYPE
  149. string "Initial terminal type"
  150. default "linux"
  151. depends on INIT || LINUXRC
  152. help
  153. This is the initial value set by init for the TERM environment
  154. variable. This variable is used by programs which make use of
  155. extended terminal capabilities.
  156. Note that on Linux, init attempts to detect serial terminal and
  157. sets TERM to "vt102" if one is found.
  158. config FEATURE_INIT_MODIFY_CMDLINE
  159. bool "Clear init's command line"
  160. default y
  161. depends on INIT || LINUXRC
  162. help
  163. When launched as PID 1 and after parsing its arguments, init
  164. wipes all the arguments but argv[0] and rewrites argv[0] to
  165. contain only "init", so that its command line appears solely as
  166. "init" in tools such as ps.
  167. If this option is set to Y, init will keep its original behavior,
  168. otherwise, all the arguments including argv[0] will be preserved,
  169. be they parsed or ignored by init.
  170. The original command-line used to launch init can then be
  171. retrieved in /proc/1/cmdline on Linux, for example.
  172. endmenu