r273918 buildworld broke at semaphore

[Henry Hu]

On Tue, Nov 11, 2014 at 1:33 PM, John Baldwin <jhb at freebsd.org> wrote:

> On Friday, October 31, 2014 4:08:06 pm Beeblebrox wrote:
> > First breakage in a long time. Error is:
> >
> > In file included from cancelpoints_sem_new.c:47:
> > /usr/src/lib/libc/../../include/semaphore.h:41:16: error: field has
> > incomplete type 'struct _usem2'
> >         struct _usem2   _kern;
> >                         ^
> > /usr/src/lib/libc/../../include/semaphore.h:41:9: note: forward
> declaration
> > of 'struct _usem2'
> >         struct _usem2   _kern;
> >                ^
> > cancelpoints_sem_new.c:66:33: error: use of undeclared identifier
> > 'USEM_MAX_COUNT'
> > _Static_assert(SEM_VALUE_MAX <= USEM_MAX_COUNT, "SEM_VALUE_MAX too
> large");
> >                                 ^
> > cancelpoints_sem_new.c:335:15: warning: implicit declaration of function
> > 'USEM_COUNT' is invalid in C99 [-Wimplicit-function-declaration]
> >         *sval = (int)USEM_COUNT(sem->_kern._count);
> >                      ^
> > cancelpoints_sem_new.c:342:23: error: use of undeclared identifier
> > 'UMTX_OP_SEM2_WAKE'
> >         return _umtx_op(sem, UMTX_OP_SEM2_WAKE, 0, NULL, NULL);
> >                              ^
> > cancelpoints_sem_new.c:361:23: error: use of undeclared identifier
> > 'UMTX_OP_SEM2_WAIT'
> >         return _umtx_op(sem, UMTX_OP_SEM2_WAIT, 0,
> >                              ^
> > cancelpoints_sem_new.c:445:14: error: use of undeclared identifier
> > 'USEM_HAS_WAITERS'
> >         if (count & USEM_HAS_WAITERS)
> >                     ^
> > 1 warning and 5 errors generated.
>
> Seems like your tree is not fully up to date?  The changes to sem_new.c
> were
> committed in the same commit as the changes to sys/umtx.h.


Maybe it's another problem. buildworld may be picking up umtx.h from
/usr/include which is the old version.



>
> --
> John Baldwin
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-- 
Cheers,
Henry