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Robert Dörfler | 8 Feb 10:20 2012

Re: Xorg, XFree on netbsd/alpha

Am 20.09.2011 21:33, schrieb Manuel Bouyer:
 > On Tue, Sep 20, 2011 at 09:52:11AM +0200, Robert Dörfler wrote:
 >> Hi,
 >>
 >> i just installed NetBSD5.1 on my AlphaPC 164LX some days ago.When i was
 >> starting X i realized that its not the usual xorg/xfree86.Its
 >> XdecNetBSD. I'm just wondering why its included on the
 >> iso-distribution.
 >> Isnt there an usual xorg/xfree86 package around for alpha?
 >
 > By default the alpha port still uses the old XFree86 tree, but you
 > should be able to rebuild from source with X11FLAVOUR=Xorg
 > (I did use it when I still had a working alpha XP1000)

Its been some while. If i try to build Xorg it stops compiling at
"/usr/pkgsrc/sysutils/libpciaccess" with:

ERROR: This package is only available for these platforms: 
FreeBSD-*-i386 NetBSD-*-i386 OpenBSD-*-i386 FreeBSD-*-x86_64 
NetBSD-*-x86_64 OpenBSD-*-x86_64 DragonFly-*-i386 DragonFly-*-x86_64 
Linux-*-* SunOS-*-* NetBSD-*-sparc64.
ERROR: This package has set PKG_FAIL_REASON:
ERROR: libpciaccess-0.11.0nb1 is not available for NetBSD-5.1_STABLE-alpha
*** Error code 1

So, i tried to add NetBSD-*-alpha as platform in the Makefile and
libpciaccess will build with a few warnings knowing that this will
surely will crash later. So, i tried to build modular-xorg-server
which will end here:

(Continue reading)

Andrius V | 9 Feb 13:09 2012
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Re: Xorg, XFree on netbsd/alpha

I was able to build modular-xorg some time ago however on startx
netbsd was crashing immediately. So Xorg was unusable  for me in the
end. You need to add -lalpha in Makefile if you want to build Xorg at
all. About these errors you probably need to look how those functions
are defined. Also there were some diffs in the groups from some other
person who managed to build and run it too
(http://old.nabble.com/X.org-1.3.0-server-on-NetBSD-alpha-td13057190.html).
It can be as reference point too.

On Wed, Feb 8, 2012 at 11:20 AM, Robert Dörfler <rodo <at> zlug.org> wrote:
> Am 20.09.2011 21:33, schrieb Manuel Bouyer:
>
>> On Tue, Sep 20, 2011 at 09:52:11AM +0200, Robert Dörfler wrote:
>>> Hi,
>>>
>>> i just installed NetBSD5.1 on my AlphaPC 164LX some days ago.When i was
>>> starting X i realized that its not the usual xorg/xfree86.Its
>>> XdecNetBSD. I'm just wondering why its included on the
>>> iso-distribution.
>>> Isnt there an usual xorg/xfree86 package around for alpha?
>>
>> By default the alpha port still uses the old XFree86 tree, but you
>> should be able to rebuild from source with X11FLAVOUR=Xorg
>> (I did use it when I still had a working alpha XP1000)
>
> Its been some while. If i try to build Xorg it stops compiling at
> "/usr/pkgsrc/sysutils/libpciaccess" with:
>
> ERROR: This package is only available for these platforms: FreeBSD-*-i386
> NetBSD-*-i386 OpenBSD-*-i386 FreeBSD-*-x86_64 NetBSD-*-x86_64
(Continue reading)

Andrius V | 9 Feb 13:13 2012
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Re: Xorg, XFree on netbsd/alpha

What is more netbsd-alpha has a kernel security level 1 by default.
You need to recompile kernel with less security level too (-1 as I
remember) because Xorg can't run with higher levels.

On Thu, Feb 9, 2012 at 2:09 PM, Andrius V <vezhlys <at> gmail.com> wrote:
> I was able to build modular-xorg some time ago however on startx
> netbsd was crashing immediately. So Xorg was unusable  for me in the
> end. You need to add -lalpha in Makefile if you want to build Xorg at
> all. About these errors you probably need to look how those functions
> are defined. Also there were some diffs in the groups from some other
> person who managed to build and run it too
> (http://old.nabble.com/X.org-1.3.0-server-on-NetBSD-alpha-td13057190.html).
> It can be as reference point too.
>
> On Wed, Feb 8, 2012 at 11:20 AM, Robert Dörfler <rodo <at> zlug.org> wrote:
>> Am 20.09.2011 21:33, schrieb Manuel Bouyer:
>>
>>> On Tue, Sep 20, 2011 at 09:52:11AM +0200, Robert Dörfler wrote:
>>>> Hi,
>>>>
>>>> i just installed NetBSD5.1 on my AlphaPC 164LX some days ago.When i was
>>>> starting X i realized that its not the usual xorg/xfree86.Its
>>>> XdecNetBSD. I'm just wondering why its included on the
>>>> iso-distribution.
>>>> Isnt there an usual xorg/xfree86 package around for alpha?
>>>
>>> By default the alpha port still uses the old XFree86 tree, but you
>>> should be able to rebuild from source with X11FLAVOUR=Xorg
>>> (I did use it when I still had a working alpha XP1000)
>>
(Continue reading)

Nicolas Joly | 27 Feb 00:25 2012
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rint(3) ignore the prevailing rounding mode


Hi,

Looking into the t_fpsetround testcase failure on alpha [1], i noticed
that rint does not alter its behaviour according to the prevailing
rounding mode.

The alpha machines do not use dynamic rounding mode by default unlinke
other archs. Compilation with default options enfore normal ieee
rounding mode, which does not take the fpcr bits into account at run
time.

To be sure, i recompiled the whole math library with rounding mode
option set to dynamic (patch attached), and this fixed the failing
test.

This seems the way to go, but i wonder if compiling the whole library
with dynamic rounding mode can have some bad side effects ? Do we need
to restrict it for rint function family ?

Thanks.

[1] http://www.netbsd.org/~njoly/alpha-atf/47_atf.html#lib_libc_gen_t_fpsetround_fpsetround_basic

--

-- 
Nicolas Joly

Projects and Developments in Bioinformatics
Institut Pasteur, Paris.
(Continue reading)


Gmane