2008-06-01 Paul Brook <paul@codesourcery.com>

2008-06-01  Paul Brook  <paul@codesourcery.com>
	    Zack Weinberg  <zack@codesourcery.com>
	    Daniel Jacobowitz  <dan@codesourcery.com>

	* sysdeps/arm/nptl/pthread_spin_lock.S,
	sysdeps/arm/nptl/pthread_spin_trylock.S: Delete.
	* sysdeps/arm/nptl/pthread_spin_lock.c,
	sysdeps/arm/nptl/pthread_spin_trylock.c: New files using
	atomic_compare_and_exchange_val_acq to take spinlocks.
	* sysdeps/unix/sysv/linux/arm/nptl/bits/atomic.h (lll_trylock,
	lll_cond_trylock): Use atomic_compare_and_exchange_val_acq.
	(__lll_trylock, __lll_cond_trylock): Delete.
	* sysdeps/unix/sysv/linux/arm/nptl/bits/atomic.h
	(atomic_exchange_acq): Delete.
	(atomic_full_barrier): Define.
	(__arch_compare_and_exchange_val_32_acq): Use named operands.
	* sysdeps/unix/sysv/linux/arm/eabi/configure.in: Update
	arch_minimum_kernel to 2.6.16.
	* sysdeps/unix/sysv/linux/arm/eabi/configure: Regenerated.