Move SH code out of nptl/ subdirectory.

sysdeps/unix/sysv/linux/sh/lowlevel-atomic.h

@@ -0,0 +1,80 @@
+/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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/>.  */
+
+#ifdef __ASSEMBLER__
+
+#define _IMP1 #1
+#define _IMM1 #-1
+#define _IMM4 #-4
+#define _IMM6 #-6
+#define _IMM8 #-8
+
+#define	INC(mem, reg) \
+	.align	2; \
+	mova	99f, r0; \
+	mov	r15, r1; \
+	mov	_IMM6, r15; \
+98:	mov.l	mem, reg; \
+	add	_IMP1, reg; \
+	mov.l	reg, mem; \
+99:	mov	r1, r15
+
+#define	DEC(mem, reg) \
+	.align	2; \
+	mova	99f, r0; \
+	mov	r15, r1; \
+	mov	_IMM6, r15; \
+98:	mov.l	mem, reg; \
+	add	_IMM1, reg; \
+	mov.l	reg, mem; \
+99:	mov	r1, r15
+
+#define	XADD(reg, mem, old, tmp) \
+	.align	2; \
+	mova	99f, r0; \
+	nop; \
+	mov	r15, r1; \
+	mov	_IMM8, r15; \
+98:	mov.l	mem, old; \
+	mov	reg, tmp; \
+	add	old, tmp; \
+	mov.l	tmp, mem; \
+99:	mov	r1, r15
+
+#define	XCHG(reg, mem, old) \
+	.align	2; \
+	mova	99f, r0; \
+	nop; \
+	mov	r15, r1; \
+	mov	_IMM4, r15; \
+98:	mov.l	mem, old; \
+	mov.l	reg, mem; \
+99:	mov	r1, r15
+
+#define	CMPXCHG(reg, mem, new, old) \
+	.align	2; \
+	mova	99f, r0; \
+	nop; \
+	mov	r15, r1; \
+	mov	_IMM8, r15; \
+98:	mov.l	mem, old; \
+	cmp/eq	old, reg; \
+	bf	99f; \
+	mov.l	new, mem; \
+99:	mov	r1, r15
+
+#endif  /* __ASSEMBLER__ */