PowerPC: Move powerpc code out of nptl/ subdirectory

1 files changed, 44 insertions, 0 deletions

diff --git a/sysdeps/powerpc/nptl/pthread_spin_lock.c b/sysdeps/powerpc/nptl/pthread_spin_lock.c
new file mode 100644
index 0000000000..b8333c7d9a
--- /dev/null
+++ b/sysdeps/powerpc/nptl/pthread_spin_lock.c
@@ -0,0 +1,44 @@
+/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include "pthreadP.h"
+
+int
+pthread_spin_lock (lock)
+     pthread_spinlock_t *lock;
+{
+  unsigned int __tmp;
+
+  asm volatile (
+       "1:	lwarx	%0,0,%1\n"
+       "	cmpwi	0,%0,0\n"
+       "	bne-	2f\n"
+       "	stwcx.	%2,0,%1\n"
+       "	bne-	2f\n"
+       "	isync\n"
+       "	.subsection 1\n"
+       "2:	lwzx	%0,0,%1\n"
+       "	cmpwi	0,%0,0\n"
+       "	bne	2b\n"
+       "	b	1b\n"
+       "	.previous"
+       : "=&r" (__tmp)
+       : "r" (lock), "r" (1)
+       : "cr0", "memory");
+  return 0;
+}