[PATCH] MIPS function attributes for interrupt handlers

[Fu, Chao-Ying]

"Daniel Jacobowitz" wrote:
> On Tue, Feb 24, 2009 at 06:02:08PM -0800, Fu, Chao-Ying wrote:
> > Hi All,
> >
> >   Based on the discussions last year, I will update my interrupt patch
to
> > support only the following
> > attributes.
> >
> > void __attribute__ ((interrupt )) v0 () { }
> > void __attribute__ ((interrupt (use_shadow_register_set))) v1 () { }
> > void __attribute__ ((interrupt (keep_interrupts_masked))) v2 () { }
> > void __attribute__ ((interrupt (use_shadow_register_set,
> > keep_interrupts_masked))) v3 () { }
>
> I have one question: does the patch cause GCC to generate eret?  If
> so, is there another attribute needed for deret?

  Yes, from the current patch GCC generates "eret" for return.
So, we may need another attribute as "use_debug_exception_return".
Thanks!

Regards,
Chao-ying