Xen devel - May 2009 - bad register name `%sil'' when building debug enabled xen 3.3.1 with gcc 4.4.0 on fedora 11

Hello!

Has anyone seen this error?:

traps.c: Assembler messages:
traps.c:1343: Error: bad register name `%sil''
make[4]: *** [traps.o] Error 1
make[4]: Leaving directory
`/root/rpmbuild/BUILD/xen-3.3.1/xen/arch/x86''
make[3]: *** [/root/rpmbuild/BUILD/xen-3.3.1/xen/arch/x86/built_in.o] Error 2

I''m trying to rebuild Fedora xen-3.3.1-11.fc11.src.rpm with debugging
enabled ("debug=y verbose=y crash_debug=y").

Normal non-debug build succeeds fine without errors.. gcc bug? xen bug?

Thanks!

-- Pasi

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On Mon, May 04, 2009 at 10:00:56PM +0300, Pasi Kärkkäinen
wrote:
> Hello!
> 
> Has anyone seen this error?:
> 
> traps.c: Assembler messages:
> traps.c:1343: Error: bad register name `%sil''
> make[4]: *** [traps.o] Error 1
> make[4]: Leaving directory
`/root/rpmbuild/BUILD/xen-3.3.1/xen/arch/x86''
> make[3]: *** [/root/rpmbuild/BUILD/xen-3.3.1/xen/arch/x86/built_in.o] Error
2
> 
> I''m trying to rebuild Fedora xen-3.3.1-11.fc11.src.rpm with
debugging
> enabled ("debug=y verbose=y crash_debug=y").
> 
> Normal non-debug build succeeds fine without errors.. gcc bug? xen bug?
> 
# gcc --version
gcc (GCC) 4.4.0 20090427 (Red Hat 4.4.0-3)
Copyright (C) 2009 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

-- Pasi
> Thanks!
> 
> -- Pasi
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
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On 04/05/2009 20:00, "Pasi Kärkkäinen" <pasik@iki.fi> wrote:
> I''m trying to rebuild Fedora xen-3.3.1-11.fc11.src.rpm with
debugging
> enabled ("debug=y verbose=y crash_debug=y").
> 
> Normal non-debug build succeeds fine without errors.. gcc bug? xen bug?
A couple of asm constraints should be "=qm" rather than
"=rm". I will fix
for 3.4.0 and 3.3.1. You can use the attached patch to fix your build.

 -- Keir



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On Mon, May 04, 2009 at 10:53:16PM +0100, Keir Fraser
wrote:
> On 04/05/2009 20:00, "Pasi Kärkkäinen" <pasik@iki.fi>
wrote:
> 
> > I''m trying to rebuild Fedora xen-3.3.1-11.fc11.src.rpm with
debugging
> > enabled ("debug=y verbose=y crash_debug=y").
> > 
> > Normal non-debug build succeeds fine without errors.. gcc bug? xen
bug?
> 
> A couple of asm constraints should be "=qm" rather than
"=rm". I will fix
> for 3.4.0 and 3.3.1. You can use the attached patch to fix your build.
> 
Thanks!

I''ll try the patch later today.

-- Pasi

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Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

On Tue, May 05, 2009 at 09:19:00AM +0300, Pasi Kärkkäinen
wrote:
> On Mon, May 04, 2009 at 10:53:16PM +0100, Keir Fraser wrote:
> > On 04/05/2009 20:00, "Pasi Kärkkäinen" <pasik@iki.fi>
wrote:
> > 
> > > I''m trying to rebuild Fedora xen-3.3.1-11.fc11.src.rpm
with debugging
> > > enabled ("debug=y verbose=y crash_debug=y").
> > > 
> > > Normal non-debug build succeeds fine without errors.. gcc bug?
xen bug?
> > 
> > A couple of asm constraints should be "=qm" rather than
"=rm". I will fix
> > for 3.4.0 and 3.3.1. You can use the attached patch to fix your build.
> > 
> 
> Thanks!
> 
> I''ll try the patch later today.
> 
And indeed, the attached patch fixes the problem!

Thanks again.

Now back to debugging pv_ops dom0 kernels :-)

-- Pasi

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