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Full Discussion: Unix linked-list placement
Top Forums UNIX for Advanced & Expert Users Unix linked-list placement Post 302671873 by bakunin on Saturday 14th of July 2012 10:34:12 PM
Old 07-14-2012
I am not sure why you want to modify the kernel sources. If you just want to share information between processes you can use shared memory. See the shmget(), shmat(), mmap(), etc. system calls for information about how shared memory works.

I hope this helps.

bakunin
 

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KLDUNLOAD(2)						      BSD System Calls Manual						      KLDUNLOAD(2)

NAME
kldunload, kldunloadf -- unload kld files LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <sys/param.h> #include <sys/linker.h> int kldunload(int fileid); int kldunloadf(int fileid, int flags); DESCRIPTION
The kldunload() system call unloads a kld file from the kernel that was previously linked via kldload(2). The kldunloadf() system call accepts an additional flags argument, which may be one of LINKER_UNLOAD_NORMAL, giving the same behavior as kldunload(), or LINKER_UNLOAD_FORCE, which causes the unload to ignore a failure to quiesce the module. RETURN VALUES
Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable errno is set to indicate the error. ERRORS
The file referred to by fileid is unloaded unless: [EPERM] You do not have access to unlink the file from the kernel. [ENOENT] The file was not found. [EBUSY] You attempted to unload a file linked by the kernel. [EINVAL] The kldunloadf() system call was passed invalid flags. SEE ALSO
kldfind(2), kldfirstmod(2), kldload(2), kldnext(2), kldstat(2), kldsym(2), modfind(2), modfnext(2), modnext(2), modstat(2), kld(4), kldunload(8) HISTORY
The kld interface first appeared in FreeBSD 3.0. BSD
December 25, 2008 BSD
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