SPARC: Consolidate unnecessary nptl/ subdirectories.

1 files changed, 67 insertions, 0 deletions

diff --git a/sysdeps/sparc/sparc64/cpu_relax.S b/sysdeps/sparc/sparc64/cpu_relax.S
new file mode 100644
index 0000000000..9d45eb7e42
--- /dev/null
+++ b/sysdeps/sparc/sparc64/cpu_relax.S
@@ -0,0 +1,67 @@
+/* CPU strand yielding for busy loops.
+   Copyright (C) 2012-2014 Free Software Foundation, Inc.
+   Contributed by David S. Miller (davem@davemloft.net)
+   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/>.  */
+
+#include <sysdep.h>
+
+	.text
+__cpu_relax_generic:
+	rd	%ccr, %g0
+	rd	%ccr, %g0
+	rd	%ccr, %g0
+	retl
+	 nop
+	.size	__cpu_relax_generic,.-__cpu_relax_generic
+
+__cpu_relax_pause:
+	wr	%g0, 128, %asr27
+	retl
+	 nop
+	.size	__cpu_relax_pause,.-__cpu_relax_pause
+
+ENTRY(__cpu_relax)
+	.type	__cpu_relax, @gnu_indirect_function
+# ifdef SHARED
+	SETUP_PIC_REG_LEAF(o3, o5)
+# endif
+	set	HWCAP_SPARC_PAUSE, %o1
+	andcc	%o0, %o1, %g0
+	be	1f
+	 nop
+# ifdef SHARED
+	sethi	%gdop_hix22(__cpu_relax_pause), %o1
+	xor	%o1, %gdop_lox10(__cpu_relax_pause), %o1
+# else
+	set	__cpu_relax_pause, %o1
+# endif
+	ba	10f
+	 nop
+1:
+# ifdef SHARED
+	sethi	%gdop_hix22(__cpu_relax_generic), %o1
+	xor	%o1, %gdop_lox10(__cpu_relax_generic), %o1
+# else
+	set	__cpu_relax_generic, %o1
+# endif
+10:
+# ifdef SHARED
+	add	%o3, %o1, %o1
+# endif
+	retl
+	 mov	%o1, %o0
+END(__cpu_relax)