Messages in this thread | | | From | Joris van Rantwijk <> | Subject | Re: Inflation of vmlinux by linker on x86_64 | Date | Fri, 26 Sep 2008 21:50:11 +0200 |
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On 26 sep 2008, at 20:52, H. Peter Anvin wrote: > Instead of adding a comment like this, we should simply rename it > memmove().
Yes. I tried, but it clashed with an existing memmove declaration in asm-x86/string_32.h.
What is the accepted solution for this? Redefining memmove should be allowed, but then it could no longer be a static function. Using the memmove implementation from the main kernel would be painful and ugly. We could also define "__memmove()" plus "#define memmove __memmove", which would also be ugly.
> Furthermore, we probably spend enough time copying that using a real > memmove() implementation, using string instructions, would be good.
Are string instructions that much faster? We can also get some speedup by copying ints instead of chars.
Joris.
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