Date: Fri, 09 Sep 2011 10:52:53 +0200 From: Dimitry Andric <dim@FreeBSD.org> To: Volodymyr Kostyrko <c.kworr@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: Compiling BETA2 with clang fails Message-ID: <4E69D3E5.3090201@FreeBSD.org> In-Reply-To: <4E698BCC.5010400@gmail.com> References: <j3u29f$bv8$1@dough.gmane.org> <4E62915E.1010405@FreeBSD.org> <4E6294E0.5010104@gmail.com> <4E6298DE.5090007@FreeBSD.org> <4E644993.4090703@gmail.com> <4E660BA3.8080103@FreeBSD.org> <CABzXLYPUPvubXa4a%2BRkAftCOCyr===v6SOw=o=qtZ%2BHDTiJywg@mail.gmail.com> <4E66162F.8090406@gmail.com> <CABzXLYOxgYbFtSJ%2BVHwLHRYmUsC2jVGhuJOmG-KGPiqjACH9AQ@mail.gmail.com> <4E661B1C.2030608@gmail.com> <CABzXLYPZSN8kzsyauA_TpjkPyo_xA_OXWfCjkLsc=s6vkt-%2BbQ@mail.gmail.com> <4E662C7A.3020404@gmail.com> <CABzXLYNRy=L=SBLoG3uvfTAdp=fL2i1=qo2rxN2UL5sdzS949w@mail.gmail.com> <4E698BCC.5010400@gmail.com>
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On 2011-09-09 05:45, Volodymyr Kostyrko wrote:
...
>> Like cleaning /usr/obj/ and then buildworld with clang but with
>> "-march=athlon-xp" instead of "-march=native".
>> As the problem does not seem to be in your current world but rather in
>> the bootstrap clang compiled with -march=native, you should not have
>> to {build,install}world with gcc first.
>
> I cleaned /usr/obj and made a build with -march=athlon-xp. Same errors.
I did a few test builds with 'high' CPU values for -march, and I ran
into various problems. I'd discourage the use of -march=native for now,
at least with clang. It will take some time to investigate.
...
> # nm -D /usr/obj/usr/src/tmp/usr/lib/libc.so
...
> That's the problem - libraries miss most symbols.
This is why I still think you have the stdin/out/err problem, in some
way. Can you please check /usr/obj/usr/src/lib/libc/Version.map? It
should have about 2775 lines, otherwise your libc build is busted.
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