[Bug go/79281] gccgo: Binaries using goroutines crash on m68k

[ian at airs dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79281

--- Comment #2 from Ian Lance Taylor <ian at airs dot com> ---
Perhaps this would be fixed by adding __attribute__((aligned(4))) to some field
of struct Sched in proc.c.

This code is all different on trunk/GCC7.  I don't know whether it still has
the same problem or not.  Probably it does but the fix would have to be
different.