129 lines
4.6 KiB
Plaintext
129 lines
4.6 KiB
Plaintext
|
config PROC_FS
|
||
|
|
bool "/proc file system support" if EXPERT
|
||
|
|
default y
|
||
|
|
help
|
||
|
|
This is a virtual file system providing information about the status
|
||
|
|
of the system. "Virtual" means that it doesn't take up any space on
|
||
|
|
your hard disk: the files are created on the fly by the kernel when
|
||
|
|
you try to access them. Also, you cannot read the files with older
|
||
|
|
version of the program less: you need to use more or cat.
|
||
|
|
|
||
|
|
It's totally cool; for example, "cat /proc/interrupts" gives
|
||
|
|
information about what the different IRQs are used for at the moment
|
||
|
|
(there is a small number of Interrupt ReQuest lines in your computer
|
||
|
|
that are used by the attached devices to gain the CPU's attention --
|
||
|
|
often a source of trouble if two devices are mistakenly configured
|
||
|
|
to use the same IRQ). The program procinfo to display some
|
||
|
|
information about your system gathered from the /proc file system.
|
||
|
|
|
||
|
|
Before you can use the /proc file system, it has to be mounted,
|
||
|
|
meaning it has to be given a location in the directory hierarchy.
|
||
|
|
That location should be /proc. A command such as "mount -t proc proc
|
||
|
|
/proc" or the equivalent line in /etc/fstab does the job.
|
||
|
|
|
||
|
|
The /proc file system is explained in the file
|
||
|
|
<file:Documentation/filesystems/proc.txt> and on the proc(5) manpage
|
||
|
|
("man 5 proc").
|
||
|
|
|
||
|
|
This option will enlarge your kernel by about 67 KB. Several
|
||
|
|
programs depend on this, so everyone should say Y here.
|
||
|
|
|
||
|
|
config PROC_KCORE
|
||
|
|
bool "/proc/kcore support" if !ARM
|
||
|
|
depends on PROC_FS && MMU
|
||
|
|
select CRASH_CORE
|
||
|
|
help
|
||
|
|
Provides a virtual ELF core file of the live kernel. This can
|
||
|
|
be read with gdb and other ELF tools. No modifications can be
|
||
|
|
made using this mechanism.
|
||
|
|
|
||
|
|
config PROC_VMCORE
|
||
|
|
bool "/proc/vmcore support"
|
||
|
|
depends on PROC_FS && CRASH_DUMP
|
||
|
|
default y
|
||
|
|
help
|
||
|
|
Exports the dump image of crashed kernel in ELF format.
|
||
|
|
|
||
|
|
config PROC_VMCORE_DEVICE_DUMP
|
||
|
|
bool "Device Hardware/Firmware Log Collection"
|
||
|
|
depends on PROC_VMCORE
|
||
|
|
default n
|
||
|
|
help
|
||
|
|
After kernel panic, device drivers can collect the device
|
||
|
|
specific snapshot of their hardware or firmware before the
|
||
|
|
underlying devices are initialized in crash recovery kernel.
|
||
|
|
Note that the device driver must be present in the crash
|
||
|
|
recovery kernel's initramfs to collect its underlying device
|
||
|
|
snapshot.
|
||
|
|
|
||
|
|
If you say Y here, the collected device dumps will be added
|
||
|
|
as ELF notes to /proc/vmcore.
|
||
|
|
|
||
|
|
config PROC_SYSCTL
|
||
|
|
bool "Sysctl support (/proc/sys)" if EXPERT
|
||
|
|
depends on PROC_FS
|
||
|
|
select SYSCTL
|
||
|
|
default y
|
||
|
|
---help---
|
||
|
|
The sysctl interface provides a means of dynamically changing
|
||
|
|
certain kernel parameters and variables on the fly without requiring
|
||
|
|
a recompile of the kernel or reboot of the system. The primary
|
||
|
|
interface is through /proc/sys. If you say Y here a tree of
|
||
|
|
modifiable sysctl entries will be generated beneath the
|
||
|
|
/proc/sys directory. They are explained in the files
|
||
|
|
in <file:Documentation/sysctl/>. Note that enabling this
|
||
|
|
option will enlarge the kernel by at least 8 KB.
|
||
|
|
|
||
|
|
As it is generally a good thing, you should say Y here unless
|
||
|
|
building a kernel for install/rescue disks or your system is very
|
||
|
|
limited in memory.
|
||
|
|
|
||
|
|
config PROC_PAGE_MONITOR
|
||
|
|
default y
|
||
|
|
depends on PROC_FS && MMU
|
||
|
|
bool "Enable /proc page monitoring" if EXPERT
|
||
|
|
help
|
||
|
|
Various /proc files exist to monitor process memory utilization:
|
||
|
|
/proc/pid/smaps, /proc/pid/clear_refs, /proc/pid/pagemap,
|
||
|
|
/proc/kpagecount, and /proc/kpageflags. Disabling these
|
||
|
|
interfaces will reduce the size of the kernel by approximately 4kb.
|
||
|
|
|
||
|
|
config PROC_AVC
|
||
|
|
bool "support (/proc/avc_msg)"
|
||
|
|
default n
|
||
|
|
help
|
||
|
|
support logging audit avc message
|
||
|
|
When PROC_AVC config is turned on, proc/avc_msg path is created and then,
|
||
|
|
can use it to analyze the SEandroid denial.
|
||
|
|
|
||
|
|
config PROC_CHILDREN
|
||
|
|
bool "Include /proc/<pid>/task/<tid>/children file"
|
||
|
|
default n
|
||
|
|
help
|
||
|
|
Provides a fast way to retrieve first level children pids of a task. See
|
||
|
|
<file:Documentation/filesystems/proc.txt> for more information.
|
||
|
|
|
||
|
|
Say Y if you are running any user-space software which takes benefit from
|
||
|
|
this interface. For example, rkt is such a piece of software.
|
||
|
|
|
||
|
|
config PROC_FSLOG
|
||
|
|
bool "Enable FS logs for improving filesystem debug"
|
||
|
|
depends on PROC_FS
|
||
|
|
default y
|
||
|
|
|
||
|
|
config PROC_STLOG
|
||
|
|
bool "Enable Storage log"
|
||
|
|
depends on PROC_FSLOG
|
||
|
|
default y
|
||
|
|
|
||
|
|
config PROC_DLOG
|
||
|
|
bool "Enable delete logs for improving filesystem debug"
|
||
|
|
depends on PROC_FSLOG
|
||
|
|
default y
|
||
|
|
|
||
|
|
config PROC_UID
|
||
|
|
bool "Include /proc/uid/ files"
|
||
|
|
depends on PROC_FS && RT_MUTEXES
|
||
|
|
help
|
||
|
|
Provides aggregated per-uid information under /proc/uid.
|