03-15-2011
I assume module means kernel module.
The reason why system() doesn't work is b/c the libc functions are not available within the kernel. You can only access files and use its functions which are in the kernel. Therefore I don't know a good way of executing it from within the kernel. It actually is not a good thing to do anyway. You don't want to run userspace programs in kernel mode.
FWIW: I'm working on a kernel module myself and also use part of a different program, and what I did was to port the needed sourcecode into my program.
Maybe we can give you more help if you tell us what you want to do in a little more detail
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LEARN ABOUT OSF1
simple_lock_terminate
simple_lock_terminate(9r) simple_lock_terminate(9r)
NAME
simple_lock_terminate - General: Terminates, using a simple lock
SYNOPSIS
#include <kern/lock.h>
void simple_lock_terminate(
simple_lock_t slock_ptr );
ARGUMENTS
Specifies a pointer to a simple lock structure. You can declare this simple lock structure by using the decl_simple_lock_data routine.
DESCRIPTION
The simple_lock_terminate routine determines that the kernel module is done using the simple lock permanently. The kernel module must free
the simple lock (that is, the kernel module does not hold the lock) before calling simple_lock_terminate. The kernel module must not refer-
ence the specified simple lock after calling simple_lock_terminate.
NOTES
You must call simple_lock_init (once only) prior to calling simple_lock_terminate to initialize the simple lock structure for the resource.
A resource, from the kernel module's standpoint, is data that more than one kernel thread can manipulate. You can store the resource in
global variables and in data structure members.
RETURN VALUES
None
FILES
SEE ALSO
Routines: decl_simple_lock_data(9r), simple_lock_init(9r), simple_lock_try(9r), simple_unlock(9r)
Data Structures: slock(9s)
simple_lock_terminate(9r)