[OpenBIOS] [PATCH] ppc: Move noreturn attribute
Andreas Färber
andreas.faerber at web.de
Sun Oct 17 15:20:33 CEST 2010
Am 17.10.2010 um 14:16 schrieb Alexander Graf:
> On 17.10.2010, at 14:05, Andreas Färber wrote:
>
>> Otherwise GCC 4.2.4 complains that panic() marked noreturn does
>> return.
>
> Thanks, that one hit me too and I didn't know how to fix it
> properly :). Applied.
Thanks. In case you're playing with ppc64 I'm attaching my current
diff. It made it compile but it hangs both ppc and ppc64, no time to
investigate further right now.
Most problems were caused by the assumption that a conversion between
ucell und void* is possible; I added (unsigned long) casts or reused
the cell2pointer/pointer2cell macros. I also played with a new addr_t
type as suggested earlier, to allow 64-bit PCI addresses in the
drivers; ofmem is still missing this capability. I ran into the same
relocation problem for the vectors 0x300 and 0x400 I posted for -
mcpu=powerpc64; I hacked around it by temporarily placing the epilogue
into the vector itself.
Not sure if we need to worry about ppc64 function descriptors somewhere?
And might we need to turn on LF=1 before entering 64-bit C code?
Andreas
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