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David Laight wrote:
> On Thu, Feb 02, 2006 at 08:16:53AM -0800, Jeff Rizzo wrote:
>  =20
>> David-
>>
>> I'm not certain this is the specific commit that caused it, but amd64
>> kernels which are not optimized (like, say, GENERIC) fail to link due =
to
>> looking for bswap16 and bswap32.  I looked things over, but am not sur=
e
>> of the correct way to fix this...
>>    =20
>
> I'm not sure where I changed the effect of building non-optimised kerne=
ls.
> I'm fairly sure the const-folding and __inline versions were both insid=
e
> #if __OPTIMISE__. I don't think it makes any sense for it to be otherwi=
se.
>
> libkern (or somewhere) may need to contain extern defns of bswapnn()
> anyway - for cases where the #define doesn't apply (do we allow the
> address of bswapnn() to be taken?)
>
> It is also worth noting that the libc functions are __bswap16(), __bswa=
p32()
> and bswap64() on i386 and amd64, whereas the kernel ones never have the=

> the leading underscores.
>
> I'll look at what happens to unoptimised code later.
>
> 	David
>
>  =20

OK, I've discovered the source of this - I had COPTS+=3D-pipe and
CFLAGS+=3D-pipe in my /etc/mk.conf .  Without these, GENERIC builds at th=
e
default -O2 level, and consequently links.  This at least explains why
nobody else saw GENERIC fail to build.

+j



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