debugfs

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Template:Short description Script error: No such module "For".

debugfs is a special file system available in the Linux kernel since version 2.6.10-rc3.[1] It was written by Greg Kroah-Hartman.[2]

debugfs is a simple-to-use RAM-based file system specially designed for debugging purposes. It exists as a simple way for kernel developers to make information available to user space.[3] Unlike <templatestyles src="Mono/styles.css" />/proc, which is only meant for information about a process, or sysfs, which has strict one-value-per-file rules, debugfs has no rules at all. Developers can put any information they want there.[4]

Use

To compile a Linux kernel with the debugfs facility, the <templatestyles src="Mono/styles.css" />CONFIG_DEBUG_FS option must be set to yes. It is typically mounted at <templatestyles src="Mono/styles.css" />/sys/kernel/debug with a command such as:[5] 

mount -t debugfs none /sys/kernel/debug

It can be manipulated using several calls from the C header file <templatestyles src="Mono/styles.css" />linux/debugfs.h, which include:

  • <templatestyles src="Mono/styles.css" />debugfs_create_fileTemplate:Snd for creating a file in the debug filesystem.
  • <templatestyles src="Mono/styles.css" />debugfs_create_dirTemplate:Snd for creating a directory inside the debug filesystem.
  • <templatestyles src="Mono/styles.css" />debugfs_create_symlinkTemplate:Snd for creating a symbolic link inside the debug filesystem.
  • <templatestyles src="Mono/styles.css" />debugfs_removeTemplate:Snd for removing a debugfs entry from the debug filesystem.

References

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  1. ↑ Linux: DebugFS Script error: No such module "webarchive"., by Jeremy, December 11, 2004, KernelTrap. (Announcement of debugfs by Greg KH.)
  2. ↑ Script error: No such module "citation/CS1".
  3. ↑ Linux Kernel Documentation :: filesystems : debugfs.txt documentation from the source code (Based on kernel version 2.6.35.4. Page generated on 2010-09-02 21:39 EST.)
  4. ↑ An updated guide to debugfs, By Jonathan Corbet, May 25, 2009, LWN
  5. ↑ 2.5 Debugfs A guide to using debugfs, Ariane Keller, Version 0.8, July 2008, Kernel Space - User Space Interfaces

Script error: No such module "Check for unknown parameters".

External links

Script error: No such module "Navbox". Template:Linux kernel

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