1 # SPDX-License-Identifier: GPL-2.0-only
2 config PROC_FS
3 bool "/proc file system support" if EX
4 default y
5 help
6 This is a virtual file system provid
7 of the system. "Virtual" means that
8 your hard disk: the files are create
9 you try to access them. Also, you ca
10 version of the program less: you nee
11
12 It's totally cool; for example, "cat
13 information about what the different
14 (there is a small number of Interrup
15 that are used by the attached device
16 often a source of trouble if two dev
17 to use the same IRQ). The program pr
18 information about your system gather
19
20 Before you can use the /proc file sy
21 meaning it has to be given a locatio
22 That location should be /proc. A com
23 /proc" or the equivalent line in /et
24
25 The /proc file system is explained i
26 <file:Documentation/filesystems/proc
27 ("man 5 proc").
28
29 This option will enlarge your kernel
30 programs depend on this, so everyone
31
32 config PROC_KCORE
33 bool "/proc/kcore support" if !ARM
34 depends on PROC_FS && MMU
35 select VMCORE_INFO
36 help
37 Provides a virtual ELF core file of
38 be read with gdb and other ELF tools
39 made using this mechanism.
40
41 config PROC_VMCORE
42 bool "/proc/vmcore support"
43 depends on PROC_FS && CRASH_DUMP
44 default y
45 help
46 Exports the dump image of crashed ke
47
48 config PROC_VMCORE_DEVICE_DUMP
49 bool "Device Hardware/Firmware Log Col
50 depends on PROC_VMCORE
51 default n
52 help
53 After kernel panic, device drivers c
54 specific snapshot of their hardware
55 underlying devices are initialized i
56 Note that the device driver must be
57 recovery kernel's initramfs to colle
58 snapshot.
59
60 If you say Y here, the collected dev
61 as ELF notes to /proc/vmcore. You ca
62 dump using the kernel command line o
63
64 config PROC_SYSCTL
65 bool "Sysctl support (/proc/sys)" if E
66 depends on PROC_FS
67 select SYSCTL
68 default y
69 help
70 The sysctl interface provides a mean
71 certain kernel parameters and variab
72 a recompile of the kernel or reboot
73 interface is through /proc/sys. If
74 modifiable sysctl entries will be ge
75 /proc/sys directory. They are explai
76 in <file:Documentation/admin-guide/s
77 option will enlarge the kernel by at
78
79 As it is generally a good thing, you
80 building a kernel for install/rescue
81 limited in memory.
82
83 config PROC_PAGE_MONITOR
84 default y
85 depends on PROC_FS && MMU
86 bool "Enable /proc page monitoring" if
87 help
88 Various /proc files exist to monitor
89 /proc/pid/smaps, /proc/pid/clear_ref
90 /proc/kpagecount, and /proc/kpagefla
91 interfaces will reduce the size of t
92
93 config PROC_CHILDREN
94 bool "Include /proc/<pid>/task/<tid>/c
95 depends on PROC_FS
96 default n
97 help
98 Provides a fast way to retrieve firs
99 <file:Documentation/filesystems/proc
100
101 Say Y if you are running any user-sp
102 this interface. For example, rkt is
103
104 config PROC_PID_ARCH_STATUS
105 def_bool n
106 depends on PROC_FS
107
108 config PROC_CPU_RESCTRL
109 def_bool n
110 depends on PROC_FS
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