Move i386 code out of nptl/ subdirectory.

1 files changed, 46 insertions, 0 deletions

diff --git a/sysdeps/i386/i486/nptl/pthread_spin_trylock.S b/sysdeps/i386/i486/nptl/pthread_spin_trylock.S
new file mode 100644
index 0000000..0bcc0c6
--- /dev/null
+++ b/sysdeps/i386/i486/nptl/pthread_spin_trylock.S
@@ -0,0 +1,46 @@
+/* Copyright (C) 2002-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   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 <pthread-errnos.h>
+
+
+#ifdef UP
+# define LOCK
+#else
+# define LOCK lock
+#endif
+
+	.globl	pthread_spin_trylock
+	.type	pthread_spin_trylock,@function
+	.align	16
+pthread_spin_trylock:
+	movl	4(%esp), %edx
+	movl	$1, %eax
+	xorl	%ecx, %ecx
+	LOCK
+	cmpxchgl %ecx, (%edx)
+	movl	$EBUSY, %eax
+#ifdef HAVE_CMOV
+	cmovel	%ecx, %eax
+#else
+	jne	0f
+	movl	%ecx, %eax
+0:
+#endif
+	ret
+	.size	pthread_spin_trylock,.-pthread_spin_trylock