For kernel, rename ffs to __ffssi2 rather than having a weak symbol.
This enables us to load modules depended to __ffssi2.

It is difficult to deal with weak symbols consistently in in-kernel
linker.

For kernel, rename ffs to __ffssi2 rather than having a weak symbol.
This enables us to load modules depended to __ffssi2.

It is difficult to deal with weak symbols consistently in in-kernel
linker. See explanation by pgoyette on tech-kern:

http://mail-index.netbsd.org/tech-kern/2020/03/09/msg026148.html

Also, we do not currently provide ffs(9) as a kernel routine.

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Add missing END() for coldfire.

switch to ELF naming for local labels.

Adjust for Coldfire

Add END(func)
Fix some straggling %r@<eol> to (%r)

Convert to normal Motorola syntax for addressing.
%r@ -> (%r)
%r@- -> -(%r)
%r@+ -> (%r)+
%r@(n) n(%r)
etc.
No object differences.

add a weak alias for __ffssi2

Merge libkern + libc common files. As requested by core.