* sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept): Fix raising

	* sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept): Fix raising
	FE_UNDERFLOW on Niagara CPUs.

	* sysdeps/sparc/fpu/feholdexcpt.c (feholdexcept): Clear all
	exceptions.

	* sysdeps/unix/sysv/linux/sparc/internaltypes.h (sparc_new_sem,
	sparc_old_sem): New structs.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sem_wait.c
	(__sem_wait_cleanup): New function.
	(__new_sem_wait): Use sparc_new_sem structure.  Bump and afterwards
	decrease nwaiters.  Register __sem_wait_cleanup as cleanup handler.
	Pass isem->private ^ FUTEX_PRIVATE_FLAG as last argument to
	lll_futex_wait.
	(__old_sem_wait): New function.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_wait.c: Include
	nptl/sysdeps/unix/sysv/linux/sparc version.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_timedwait.c:
	Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_post.c: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c
	(__new_sem_trywait): Use sparc_old_sem structure.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sem_timedwait.c
	(sem_timedwait): Use sparc_new_sem structure.  Bump and afterwards
	decrease nwaiters.  Register __sem_wait_cleanup as cleanup handler.
	Pass isem->private ^ FUTEX_PRIVATE_FLAG as last argument to
	lll_futex_timed_wait.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sem_post.c (__new_sem_post):
	Use sparc_new_sem structure.  Only wake if nwaiters > 0.  Pass
	isem->private ^ FUTEX_PRIVATE_FLAG as last argument to
	lll_futex_wake.
	(__old_sem_post): New function.
	* sysdeps/unix/sysv/linux/sparc/sem_wait.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sem_init.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sem_timedwait.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sem_post.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/sem_init.c: Remove.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sem_init.c: Remove.