Date: Thu, 26 Aug 2004 09:56:10 -0600 From: "Shawn Webb" <shawnwebb@softhome.net> To: "Mmaist" <mmaist@email.it> Cc: freebsd-hackers@freebsd.org Subject: Re: syscalls implementation Message-ID: <000801c48b85$36f73b60$0c0aa8c0@Domain> References: <fb356c20f5bbebc5f8888312d44f11b5@213.203.147.246>
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You could overwrite sysent[SYS_kldload] to point to your own kldload
function. After you do what you want to, you return what the original
kldload returns. Meaning, call the original kldload and return it's value.
int (*orig_kldload)(struct thread *, struct kldload_args *) =
sysent[SYS_kldload];
int my_kldload(struct thread *, struct kldload_args *);
int my_kldload(struct thread *td, struct kldload_args *uap)
{
do_stuff_here();
return (*orig_kldload)(td, uap);
}
lattera
----- Original Message -----
From: "Mmaist" <mmaist@email.it>
To: <freebsd-hackers@freebsd.org>
Sent: Wednesday, August 25, 2004 7:30 AM
Subject: syscalls implementation
> Hi!
> I was wondering were syscalls implementation is in the FreeBSD source
tree.
> I would like to know, especially, where
>
> int kldload(const char*);
>
> is located. sys/kern/kern_linker.c contains
>
> int
> kldload(struct thread *, struct kldload_args *)
>
> and I need to watch at what called between them.
>
> thanks,
>
> markus
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