RFR(L): 8161259: Simplify including platform files.

[Lindenmaier, Goetz]

Hi Andrew, 

thanks for looking at this right away.

> > Please review this webrev.
> 
> Mostly looks fine, but I don't like that we can't grep to see where
> files get included.
Well, you need to grep for "cpu_header(assembler".

> Are we really happy with
>   40 #define SUB(x) x
> 
> SUB is a very generic name, and this is some very weird macro hacking.
> At least we need an explanation in a comment.

That's a good point, I'll rename it to HSSUB (hotspot submacro).
It should not be too long because it's used so often on one line.

Comment:
// Used to note down several macros without spaces to separate 
// them:  For M1=foo and M2=bar, the preprocessor does not 
// understand M1M2, but SUB(M1)M2 will work.

Best regards,
  Goetz.



> 
> Andrew.