Something missing perhaps?

[Justin Hibbits]

These symbol references are generated by the compiler to handle 64-bit
atomic operations.  I don't think there's currently any support, even
in libgcc, for 64-bit atomics on 32-bit powerpc.  Something *could* be
hacked together to handle it, using a mutex wrapper, but to the best
of my knowledge, nobody's done the work for it.

- Justin

On Tue, Mar 17, 2015 at 5:59 AM, Jukka Ukkonen <jau789 at gmail.com> wrote:
>
> Hello all,
>
> I was trying to build kyotocabinet from the ports tree
> on an old PowerMac G4 Quicksilver, but the attempt failed
> in a very peculiar manner...
> Do these complaints from cc ring any bells...
>
> ./libkyotocabinet.so: undefined reference to `__sync_lock_test_and_set_8'
> ./libkyotocabinet.so: undefined reference to `__sync_fetch_and_add_8'
> ./libkyotocabinet.so: undefined reference to
> `__sync_bool_compare_and_swap_8'
> ./libkyotocabinet.so: undefined reference to `__sync_lock_test_and_set_8'
> ./libkyotocabinet.so: undefined reference to `__sync_fetch_and_add_8'
> ./libkyotocabinet.so: undefined reference to
> `__sync_bool_compare_and_swap_8'
>
> Those missing names are apparenly being referenced by
> work/kyotocabinet-1.2.76/kcthread.cc. Since I failed
> to find the definition of these names anywhere in the
> kyotocabinet source, I assume the names are used in
> some compiler header file.
> Were those names really intended to be in the headers
> as-is or were they actually some sort of place holders
> for something which have then been completely forgotten
> for some reason?
>
> The all important details of the system are...
>
> # uname -a
> FreeBSD yggdrasil 10.1-STABLE FreeBSD 10.1-STABLE #0 r280132: Mon Mar 16
> 06:12:57 EET 2015     root at yggdrasil:/opt2/obj/usr/src-10.1/sys/GENERIC
>  powerpc
>
> # uname -KU
> 1001510 1001510
>
> # freebsd-version -ku
> 10.1-STABLE
> 10.1-STABLE
>
>
> --jau
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