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LINPROCFS(5)		 DragonFly File Formats Manual		  LINPROCFS(5)


NAME

     linprocfs -- Linux process file system


SYNOPSIS

     linproc	     /compat/linux/proc      linprocfs	     rw 0 0


DESCRIPTION

     The Linux process file system, or linprocfs, emulates a subset of Linux'
     process file system and is required for the complete operation of some
     Linux binaries.

     The linprocfs provides a two-level view of process space.	At the highest
     level, processes themselves are named, according to their process ids in
     decimal, with no leading zeros.  There is also a special node called self
     which always refers to the process making the lookup request.

     Each node is a directory which contains the following entries:

     Each directory contains several files:

     exe     A reference to the vnode from which the process text was read.
	     This can be used to gain access to the process' symbol table, or
	     to start another copy of the process.

     mem     The complete virtual memory image of the process.	Only those
	     addresses which exist in the process can be accessed.  Reads and
	     writes to this file modify the process.  Writes to the text seg-
	     ment remain private to the process.

     Each node is owned by the process's user, and belongs to that user's pri-
     mary group, except for the mem node, which belongs to the kmem group.


FILES

     /compat/linux/proc 	      normal mount point for the linprocfs.
     /compat/linux/proc/cpuinfo       CPU vendor and model information in
				      human-readable form.
     /compat/linux/proc/meminfo       System memory information in human-read-
				      able form.
     /compat/linux/proc/pid	      directory containing process information
				      for process pid.
     /compat/linux/proc/self	      directory containing process information
				      for the current process
     /compat/linux/proc/self/exe      executable image
     /compat/linux/proc/self/mem      the complete virtual address space of
				      the process


SEE ALSO

     mount(2), unmount(2), procfs(5), mount_linprocfs(8)


HISTORY

     The linprocfs first appeared in FreeBSD 4.0.


AUTHORS

     The linprocfs was derived from procfs by Pierre Beyssac.  This manual
     page was written by Dag-Erling Smorgrav, based on the procfs(5) manual
     page by Garrett Wollman.

DragonFly 4.7			August 10, 1994 		 DragonFly 4.7

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