[U-Boot] [PATCH] arm: add 8-byte alignment for ABI compliance before board_init_f

Wolfgang Denk
2010-11-12T09:56:02Z

Dear Graeme Russ,

In message <4CDD0D1F.7010805@gmail.com> you wrote:
>
> > Passing gd as parameter makes no sense, thoug, as it's global data and
> > we reserve a register to store it's address, so it can always be used
> > with minimal overhead.
>
> Which is a really nice idea if you have a register to spare. Unfortunately,
> x86 does not have this luxury, and the only way I can get gd (and as a
> consequence upper memory bound for relocation) is to allocate it in
> assembler and pass to C as a function argument

Agreed - x86 has always it's own set of limitations.

Best regards,

Wolfgang Denk

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