Date: Mon, 1 Dec 2008 23:22:48 +0100 From: Roman Divacky <rdivacky@freebsd.org> To: Dag-Erling Sm??rgrav <des@des.no> Cc: Alexander Leidinger <Alexander@leidinger.net>, Marius N??nnerich <marius@nuenneri.ch>, Tim Kientzle <kientzle@freebsd.org>, Ivan Voras <ivoras@freebsd.org>, freebsd-current@freebsd.org Subject: Re: HOWTO in wiki: adding custom dtrace probes in the kernel Message-ID: <20081201222248.GA99892@freebsd.org> In-Reply-To: <86iqq3pyx8.fsf@ds4.des.no> References: <20081128154514.82247fe47bn83lkw@webmail.leidinger.net> <ggp10c$pdt$1@ger.gmane.org> <20081128171243.18141hd28pf4ve00@webmail.leidinger.net> <49304D0E.3030201@freebsd.org> <b649e5e0812010934o6647aab2q42ee02f238b2e48f@mail.gmail.com> <86iqq3pyx8.fsf@ds4.des.no>
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On Mon, Dec 01, 2008 at 06:50:43PM +0100, Dag-Erling Sm??rgrav wrote: > "Marius N??nnerich" <marius@nuenneri.ch> writes: > > Tim Kientzle <kientzle@freebsd.org> wrote: > > > Seems that SDT_PROBE() should be using C99s "variadic macro" > > > feature. > > Is the kernel compiled in C99 mode? > > No, but it is compiled using a compiler that supports variadic macros > and has for many years (even before C99), and variadic macros are > already used in many places, including GEOM, ZFS and WITNESS. are you sure? I am seeing -std=c99 in the kernel build. check sys/conf/kern.pre.mk. it has been introduced more than 2 years ago in rev 1.75 of kern.pre.mk if I read it correctly. roman
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