[coreboot] [PATCH] libgcc regparm workaround

Stefan Reinauer stepan at coresystems.de
Sat Sep 26 17:52:47 CEST 2009

Carl-Daniel Hailfinger wrote:
> On 26.09.2009 00:03, Stefan Reinauer wrote:
>> programs that are compiled with non-default regparm values are
>> miscompiled if they use libgcc.
>> This patch works around the problem for coreboot.
>> * drop libgcc from coreboot_apc.o, not needed.
>> * wrap libgcc calls into regparm(0) variants so that coreboot can be compiled
>>   with other regparm values
>> Signed-off-by: Stefan Reinauer <stepan at coresystems.de>
> I'm worried about any libgcc compiled with regparm!=0, but for now this
> patch improves the situation.

Is there any way around this? Using stdcall or something? We could query
the compiler flags used to build gcc, but I think as long as this works
for the "normal" gcc case we should be fine. If people do use odd tool
chains, they're on their own..


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