Date: Mon, 1 Dec 2008 18:34:49 +0100 From: "=?ISO-8859-1?Q?Marius_N=FCnnerich?=" <marius@nuenneri.ch> To: "Tim Kientzle" <kientzle@freebsd.org> Cc: Alexander Leidinger <Alexander@leidinger.net>, freebsd-current@freebsd.org, Ivan Voras <ivoras@freebsd.org> Subject: Re: HOWTO in wiki: adding custom dtrace probes in the kernel Message-ID: <b649e5e0812010934o6647aab2q42ee02f238b2e48f@mail.gmail.com> In-Reply-To: <49304D0E.3030201@freebsd.org> References: <20081128154514.82247fe47bn83lkw@webmail.leidinger.net> <ggp10c$pdt$1@ger.gmane.org> <20081128171243.18141hd28pf4ve00@webmail.leidinger.net> <49304D0E.3030201@freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, Nov 28, 2008 at 8:57 PM, Tim Kientzle <kientzle@freebsd.org> wrote: >>> SDT_PROBE(foobar, source_file1, foo, entry, a, b, 0, 0, 0); >>> >>> Here: why are the last three arguments zeroes? >> >> SDT_PROBE() is a macro with a fixed number of macros, so we have to fill >> with 0 in case we don't want to provide some data. Maybe there's a way to >> provide more arguments if you do it by hand instead of using the >> SDT_PROBE() macro (TODO item added in the wiki to have a look at this, feel >> free to improve the wiki page). > > Seems that SDT_PROBE() should be using C99s "variadic macro" > feature. Is the kernel compiled in C99 mode?
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?b649e5e0812010934o6647aab2q42ee02f238b2e48f>