Re: [PATCH] x86: Align jump targets to 1 byte boundaries

Denys Vlasenko
2015-05-14T19:06:30Z

On 05/14/2015 08:17 PM, Ingo Molnar wrote:
> There were also these other changes I tested:
>
> + # Reduces vmlinux size by 0.25%:
> + KBUILD_CFLAGS += -fno-caller-saves
> +
> + # Reduces vmlinux size by 1.10%:
> + KBUILD_CFLAGS += -fno-inline-small-functions
> +
> + # Reduces vmlinux size by about 0.95%:
> + KBUILD_CFLAGS += -fno-tree-ch
>
> We could maybe consider -fno-caller-saves. What do you think about
> that option?

Quick googling din't even find what it does.
It would need a comment :)