Date: Wed, 10 Mar 2010 08:12:29 -0500 From: John Baldwin <jhb@freebsd.org> To: Alexander Leidinger <Alexander@leidinger.net> Cc: freebsd-stable@freebsd.org, "Robert N. M. Watson" <rwatson@freebsd.org> Subject: Re: is dtrace usable? Message-ID: <201003100812.29749.jhb@freebsd.org> In-Reply-To: <20100310113422.95932h10tv1qh2o0@webmail.leidinger.net> References: <E1Nnv0H-00020A-9M@kabab.cs.huji.ac.il> <B83FA8F6-F29A-4C6F-8FCF-CBF48B27A18B@freebsd.org> <20100310113422.95932h10tv1qh2o0@webmail.leidinger.net>
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On Wednesday 10 March 2010 5:34:22 am Alexander Leidinger wrote: > Quoting "Robert N. M. Watson" <rwatson@freebsd.org> (from Tue, 9 Mar > 2010 16:39:09 +0000): > > > > > On Mar 9, 2010, at 2:16 PM, Alexander Leidinger wrote: > > > >>> From this you can see that sys.mk is included and parsed before 'Makefile', > >>> so the WITH_CTF=yes is not set until after sys.mk has been parsed. > >> > >> I think we need to find a different solution for this. The need to > >> specify WITH_CTF at the command line is very error prone. :( > > > > You are neither the first person to have made this observation, nor > > the first person to have failed to propose a solution in the form of > > a patch :-). > > It is not a problem to provide a patch, the problem is something else. > > Is it correct that the result of the ctfmerge/cftconvert stuff is not > covered by the CDDL? > > If yes, why not use it by default if the programs are available (I've > read the comment for the NO_CTF part, but IMO we have a chicken&egg > situation here, dtrace will not become popular if it is not easy to > use it)? This default can be made only for the kernel (by making a > copy of the definition of CTFCONVERT into bsd.prog.mk and bsd.lib.mk, > or by undefining it there), or for kernel+userland (removing the > !WITH_CTF -> NO_CTF part from sys.mk). Unfortunately the ctf stuff breaks static binaries. I think that if that were fixed we would simply enable it by default and be done. -- John Baldwin
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