Re: [PATCH] MIPS function attributes for interrupt handlers

[Adam Nemet <anemet at caviumnetworks dot com>]

Mark Mitchell <mark@codesourcery.com> writes:
> FWIW, I tend to agree.  However, what the attribute buys you is that you
> don't have to write the assembly prologue/epilogue pseudo-ops like
> ".globl x; .fnstart; ...", etc.  So, if that's what we really want, then
> I think the semantics should be that the body of a naked function
> contains *only* asm statements, and that any inputs, outputs, clobbers,
> etc. contain only references to entities with static storage duration.

You can still run out of call-clobbered registers by using too many "r"s on
statics in which case it's not clear who is supposed to allocate the
call-saved registers.  I would say, no extended assembly only asm with no
arguments.

Adam