Which compiler for 2.6 sparc32 kernel?

Which compiler for 2.6 sparc32 kernel?

[Krzysztof Helt]

Hi,

I tried to build the latest kernel 2.6.22-rc2 and it did not
compile correctly with my self build compiler (from Slackaware
10) and stock compiler from Aurora 2.0 (3.4.x). I tried to boot
it on the SS20 with two Supersparcs II. It was the UP (not SMP)
version.

The problem is that it miscompile va_arg(args, long long) in the
vsnprintf() function (I learned it hard way). The kernel simply
hangs at boot with "Booting linux" the message.
If the va_arg(args, long long) is replaced with two va_arg(args,
long) the problem goes away.

The problem appeared since the kernel 2.6.21. The kernel 2.6.20
works without any change and it was compiled with the same compiler.

Have any of you compiled and booted the sparc32 kernel since
2.6.21? Which compiler have you used?

Kind regards,
Krzysztof

----------------------------------------------------
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Re: Which compiler for 2.6 sparc32 kernel?

[Mark Fortescue]

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Hi,

Maybe that is why I have to set console=prom on the kernel command line to 
get anything meaningfull. My SS1 crashes when it tries to set up the 
network/NFS Root so I will be trying to identify where that got broak 
in the next fiew days.

I am using GCC-4.1.2/Binutils 2.17 with some cross compile and sparc 
patches to cross compile my test kernels on an x86 system. The last 
working kernel I tested was a patched 2.6.20.9 test kernel to test 
Benjamin Herrensch Rework ptep_set_access_flags and fix sun4c PATCH.

Regards
 	Mark Fortescue.

On Thu, 24 May 2007, Krzysztof Helt wrote:

> Hi,
>
> I tried to build the latest kernel 2.6.22-rc2 and it did not
> compile correctly with my self build compiler (from Slackaware
> 10) and stock compiler from Aurora 2.0 (3.4.x). I tried to boot
> it on the SS20 with two Supersparcs II. It was the UP (not SMP)
> version.
>
> The problem is that it miscompile va_arg(args, long long) in the
> vsnprintf() function (I learned it hard way). The kernel simply
> hangs at boot with "Booting linux" the message.
> If the va_arg(args, long long) is replaced with two va_arg(args,
> long) the problem goes away.
>
> The problem appeared since the kernel 2.6.21. The kernel 2.6.20
> works without any change and it was compiled with the same compiler.
>
> Have any of you compiled and booted the sparc32 kernel since
> 2.6.21? Which compiler have you used?
>
> Kind regards,
> Krzysztof
>
> ----------------------------------------------------
> "Mała Ikar" Helen Oyeyemi - poetycka i mroczna opowieść o bolesnej
> samotności dziecka dorastającego między kulturami.
> http://klik.wp.pl/?adr=http%3A%2F%2Fksiazki.wp.pl%2Fkatalog%2Fksiazki%2Fksiazka.html%3Fkw%3D4379&sid=1160
>
>
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