So passes uthreads

Like autumn leaves on water
   don't fear the tedu@

1 files changed, 0 insertions, 53 deletions

diff --git a/lib/libpthread/arch/powerpc/_atomic_lock.c b/lib/libpthread/arch/powerpc/_atomic_lock.c
deleted file mode 100644
index f7a80bd9697..00000000000
--- a/lib/libpthread/arch/powerpc/_atomic_lock.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/*	$OpenBSD: _atomic_lock.c,v 1.8 2008/10/01 14:59:18 drahn Exp $	*/
-/*
- * Copyright (c) 1998 Dale Rahn <drahn@openbsd.org>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-/*
- * Atomic lock for powerpc
- */
-
-#include "spinlock.h"
-
-int
-_atomic_lock(volatile _spinlock_lock_t *lock)
-{
-	_spinlock_lock_t old;
-
-	__asm__("1: lwarx 0,0,%1   \n"
-		"   stwcx. %2,0,%1 \n"
-		"   bne- 1b        \n"
-		"   mr %0, 0	   \n"
-		: "=r" (old), "=r" (lock)
-		: "r" (_SPINLOCK_LOCKED), "1" (lock) : "0"
-	);
-
-	return (old != _SPINLOCK_UNLOCKED);
-
-	/*
-	 * Dale <drahn@openbsd.org> says:
-	 *   Side note. to prevent two processes from accessing
-	 *   the same address with the lwarx in one instruction
-	 *   and the stwcx in another process, the current powerpc
-	 *   kernel uses a stwcx instruction without the corresponding
-	 *   lwarx which causes any reservation of a process
-	 *   to be removed.  if a context switch occurs
-	 *   between the two accesses the store will not occur
-	 *   and the condition code will cause it to loop. If on
-	 *   a dual processor machine, the reserve will cause
-	 *   appropriate bus cycle accesses to notify other
-	 *   processors.
-	 */
-}