resolve merge

1 files changed, 46 insertions, 0 deletions

diff --git a/libpthread/linuxthreads/sysdeps/sh64/pt-machine.c b/libpthread/linuxthreads/sysdeps/sh64/pt-machine.c
new file mode 100644
index 000000000..1c187c85c
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/sh64/pt-machine.c
@@ -0,0 +1,46 @@
+/* Cloned for uClibc by Paul Mundt, December 2003 */
+/* Modified by SuperH, Inc. September 2003 */
+
+/* Machine-dependent pthreads configuration and inline functions.
+   SH5 version.
+   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Niibe Yutaka <gniibe@m17n.org>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   see <http://www.gnu.org/licenses/>.  */
+
+#include "pt-machine.h"
+
+/* Spinlock implementation; required.  */
+
+/* The SH5 does not have a suitable test-and-set instruction (SWAP only
+   operates on an aligned quad word). So we use the SH4 version instead.
+   This must be seperately compiled in SHcompact mode, so it cannot be
+   inline. */
+
+long int testandset (int *spinlock)
+{
+  int ret;
+
+  __asm__ __volatile__(
+       "tas.b	@%1\n\t"
+       "movt	%0"
+       : "=r" (ret)
+       : "r" (spinlock)
+       : "memory", "cc");
+
+  return (ret == 0);
+}
+