Messages in this thread | | | Date | Sat, 9 Feb 2002 13:49:42 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: [PATCH] BUG preserve registers |
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On Sat, 9 Feb 2002, H. Peter Anvin wrote: > > > > This is all assuming that gcc doesn't create the string for inline > > functions that aren't used, which it probably cannot, so maybe this > > doesn't work out. > > Since gcc wouldn't even *see* a macro it didn't use, I find it hard to > imagine it would create anything.
Oh, but I was talking about the case of the macro being used in an "static inline" in a header file, and that inline is not actually _used_ anywhere..
> However, you really want to do "asm volatile" rather than "asm"...
Without any inputs and outputs, asms default to volatile, but yes, I agree. Better make it explicit.
Linus
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