Re: [RFC,v2] x86_64: save_args out of line

[Andi Kleen]

> I don't think auto-generation is very a useful angle to take for this any
> time soon.  Explicit (but simple) macros in the assembly is what I favor.

Do you mean macros that generate both the instruction and the CFI
or separate? The major disadvantage of doing it together in a 
single macro is that it is not really readable for any assembler 
programmer anymore, but starts becoming a Linux specific assembler 
language. Likely not a good thing for maintenance. anyone who
wants to know the real assembler would need to read objdump -S
output, which is not nice.

Perhaps it would be a reasonable readability improvement to just use shorter 
cfi macros which are not shouted?

-Andi
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