On 08/17/2012 04:24 PM, Charles Retailleau wrote:
> Thanks Lennart that was very useful, it now works.
> Here is the little patch I made, yet I couldn't find a switch to force
> it for core e500/e500xx only...
>
>
> --- ./xenomai-2.6.1.orig/include/asm-powerpc/syscall.h 2011-11-09
> 13:21:36.000000000 +0100
> +++ ./xenomai-2.6.1.mine/./include/asm-powerpc/syscall.h 2012-08-17
> 15:47:28.387435909 +0200
> @@ -167,9 +167,9 @@
> } u;
> unsigned long __tbu;
>
> - __asm__ __volatile__("1: mftbu %0\n"
> - "mftb %1\n"
> - "mftbu %2\n"
> + __asm__ __volatile__("1: mfspr %0,269\n"
> + "mfspr %1,268\n"
> + "mfspr %2,269\n"
> "cmpw %2,%0\n"
> "bne- 1b\n":"=r"(u.v[0]),
> "=r"(u.v[1]), "=r"(__tbu));
> Thanks to all for your help
> Charles,
If I understand correctly, this patch breaks old powerpcs. So, do we
have a compilation constant allowing to know whether we are compiling
for an old or new powerpc?
--
Gilles.
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