Re: Precompiled multiplatform code (ARMxPC)

[David Given <dg@...>]

Bogdan Marinescu wrote:
> I know it has to be 8-byte aligned on ARM9, but at least a thread in the 
> lpc2000 group suggests that in practice this seems to be needed by gcc 
> on ARM7 as well, at least in some cases.

EABI absolutely decrees 8-byte stack alignment, and if you don't have it 
your app will break. For example, passing 64-bit values through varargs 
will do really weird things.

I'm not sure about the other ARM ABIs but EABI is the most common these 
days.

(I've just encountered this problem in real production code, and had to 
manually fix the stack alignment before our app would work. 
Non-Lua-related, though.)

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