From owner-freebsd-current  Mon Nov  2 17:03:15 1998
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	Mon, 2 Nov 1998 20:02:27 -0500 (EST)
Date: Mon, 2 Nov 1998 20:02:27 -0500 (EST)
From: Brian Feldman <green@zone.syracuse.net>
To: Alfred Perlstein <bright@hotjobs.com>
cc: Tony Finch <dot@dotat.at>, current@FreeBSD.ORG
Subject: Re: Linux clone()
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Ktrace/kdump work inside the kernel more than outside, so they can't
figure out how many arguments there are in a system call, witout special
kernel handholding. Let me know what you learn in glibc, otherwise I'll
try to find someone witha Linux box to give me an account, so I can try
out ptrace.

Brian Feldman

On Mon, 2 Nov 1998, Alfred Perlstein wrote:

> 
> afaik that's what linux-ktrace does, it sees how you call the kernel
> function? maybe i'm wrong that it will trunc the arguments.... or perform
> implicit convertions to "fit" them into what the kernel says the syscall
> takes.  meanwhile i just downloaded glibc to have a peek at it for you :)
> 
> Alfred Perlstein - Programmer, HotJobs Inc. - www.hotjobs.com
> -- There are operating systems, and then there's FreeBSD.
> -- http://www.freebsd.org/                        3.0-current
> 
> On Mon, 2 Nov 1998, Brian Feldman wrote:
> 
> > I don't know, but I do know I need a real Linux syscall trace, not one of
> > MY syscall.
> > 
> > Brian Feldman
> > 
> > On Mon, 2 Nov 1998, Alfred Perlstein wrote:
> > 
> > > 
> > > have you looked at linux-ktrace? it's in the ports, i don't know if it's
> > > functional as of yet.
> > > 
> > > Alfred Perlstein - Programmer, HotJobs Inc. - www.hotjobs.com
> > > -- There are operating systems, and then there's FreeBSD.
> > > -- http://www.freebsd.org/                        3.0-current
> > > 
> > > On Mon, 2 Nov 1998, Brian Feldman wrote:
> > > 
> > > > Hmmm.. okay this would be a good test. Right now I'm going thru the
> > > > various linuxthreads example programs.... The patch seems to be doing
> > > > something wrong, and I'm unable to figure out what to do, due to Linux's
> > > > humongously gross syscall system (so the kernel doesn't help me). It also
> > > > seems now I was implementing a LIBRARY function, which is just a wrapper.
> > > > If I could get my hands on what the real system calls' args are it would
> > > > be great.
> > > > 
> > > > Brian Feldman
> > > > 
> > > 
> > > 
> > 
> 
> 


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