Subject: Re: Intercepting system calls
To: John Clark <email@example.com>
From: Antti Kantee <firstname.lastname@example.org>
Date: 04/23/2002 11:30:38
On Mon Apr 22 2002 at 21:09:42 -0700, John Clark wrote:
> Am Montag den, 22. April 2002, um 20:32, schrieb Jason R Thorpe:
> >Can you describe *precisely* what PT_SYSCALL does?
> There is a tool in linux, 'strace' which allows one to
> trace system calls. I've used it on rare occasions, when
> I though some particular system call was causing a
> kernel panic.
> From the linux man page, it is derived from
> a tool that was originally written for SunOS, of some ancient
> I presumed there was something similar for NetBSD until
> the poster asked...
There is, see ktrace(1)/ktrace(2). It also does a few bits more than
plain system call tracing if you want it to.
PT_SYSCALL is not the same thing, it is related to the ptrace(2) call.
See explanation in other mail.
Antti Kantee <email@example.com> Of course he runs NetBSD
"The dish washer returns!"