Date: Fri, 15 Feb 2008 08:58:01 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: Kostik Belousov <kostikbel@gmail.com>, current@freebsd.org, Dag-Erling =?iso-8859-15?q?Sm=F8rgrav?= <des@des.no> Subject: Re: [src] cvs commit: src/include unistd.h src/lib/libc/sys readlink.2 src/sys/compat/freebsd32 syscalls.master src/sys/kern syscalls.master vfs_syscalls.c src/sys/sys syscallsubr.h Message-ID: <200802150858.02649.jhb@freebsd.org> In-Reply-To: <200802152104.34829.doconnor@gsoft.com.au> References: <200802122009.m1CK94Y8026959@repoman.freebsd.org> <86ve4qzhxe.fsf@ds4.des.no> <200802152104.34829.doconnor@gsoft.com.au>
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On Friday 15 February 2008 05:34:26 am Daniel O'Connor wrote:
> On Fri, 15 Feb 2008, Dag-Erling Sm=F8rgrav wrote:
> > Kostik Belousov <kostikbel@gmail.com> writes:
> > > The slightly contrived example below works on RELENG_7 amd64,
> > > relevant output from the truss is
> > > readlink("/usr/X11R6","l",1) =3D 1 (0x1)
> > > on the CURRENT gives
> > > readlink("/usr/X11R6","l",1) =3D -4294967295
> > > (0xffffffff00000001) [also please note wrong output for the third
> > > readlink arg; ktrace/kdump works ok].
> >
> > The only advantage truss has is the ability to decode structs
> > (e.g. struct sockaddr in a connect() call). Apart from that, ktrace
> > / kdump is superior in every respect.
>=20
> That's a pretty big advantage :)
>=20
> Also, ktrace can't write to a pipe which means you need to run/process=20
> rather than 'stream'.
kdump -l.
=2D-=20
John Baldwin
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