Kconfig 3.0 KB

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  1. config PROC_FS
  2. bool "/proc file system support" if EXPERT
  3. default y
  4. help
  5. This is a virtual file system providing information about the status
  6. of the system. "Virtual" means that it doesn't take up any space on
  7. your hard disk: the files are created on the fly by the kernel when
  8. you try to access them. Also, you cannot read the files with older
  9. version of the program less: you need to use more or cat.
  10. It's totally cool; for example, "cat /proc/interrupts" gives
  11. information about what the different IRQs are used for at the moment
  12. (there is a small number of Interrupt ReQuest lines in your computer
  13. that are used by the attached devices to gain the CPU's attention --
  14. often a source of trouble if two devices are mistakenly configured
  15. to use the same IRQ). The program procinfo to display some
  16. information about your system gathered from the /proc file system.
  17. Before you can use the /proc file system, it has to be mounted,
  18. meaning it has to be given a location in the directory hierarchy.
  19. That location should be /proc. A command such as "mount -t proc proc
  20. /proc" or the equivalent line in /etc/fstab does the job.
  21. The /proc file system is explained in the file
  22. <file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
  23. ("man 5 proc").
  24. This option will enlarge your kernel by about 67 KB. Several
  25. programs depend on this, so everyone should say Y here.
  26. config PROC_KCORE
  27. bool "/proc/kcore support" if !ARM
  28. depends on PROC_FS && MMU
  29. config PROC_VMCORE
  30. bool "/proc/vmcore support"
  31. depends on PROC_FS && CRASH_DUMP
  32. default y
  33. help
  34. Exports the dump image of crashed kernel in ELF format.
  35. config PROC_SYSCTL
  36. bool "Sysctl support (/proc/sys)" if EXPERT
  37. depends on PROC_FS
  38. select SYSCTL
  39. default y
  40. ---help---
  41. The sysctl interface provides a means of dynamically changing
  42. certain kernel parameters and variables on the fly without requiring
  43. a recompile of the kernel or reboot of the system. The primary
  44. interface is through /proc/sys. If you say Y here a tree of
  45. modifiable sysctl entries will be generated beneath the
  46. /proc/sys directory. They are explained in the files
  47. in <file:Documentation/sysctl/>. Note that enabling this
  48. option will enlarge the kernel by at least 8 KB.
  49. As it is generally a good thing, you should say Y here unless
  50. building a kernel for install/rescue disks or your system is very
  51. limited in memory.
  52. config PROC_PAGE_MONITOR
  53. default y
  54. depends on PROC_FS && MMU
  55. bool "Enable /proc page monitoring" if EXPERT
  56. help
  57. Various /proc files exist to monitor process memory utilization:
  58. /proc/pid/smaps, /proc/pid/clear_refs, /proc/pid/pagemap,
  59. /proc/kpagecount, and /proc/kpageflags. Disabling these
  60. interfaces will reduce the size of the kernel by approximately 4kb.
  61. config PROC_AVC
  62. bool "support (/proc/avc_msg)"
  63. default n
  64. help
  65. support logging audit avc message
  66. config PROC_STLOG
  67. bool "Enable Storage log"
  68. depends on PROC_FS
  69. default y