Move bits/atomic.h to atomic-machine.h (bug 14912).

It was noted in
<https://sourceware.org/ml/libc-alpha/2012-09/msg00305.html> that the
bits/*.h naming scheme should only be used for installed headers.
This patch renames bits/atomic.h to atomic-machine.h to follow that
convention.

This is the only change in this series that needs to change the
filename rather than simply removing a directory level (because both
atomic.h and bits/atomic.h exist at present).

Tested for x86_64 (testsuite, and that installed stripped shared
libraries are unchanged by the patch).

	[BZ #14912]
	* sysdeps/aarch64/bits/atomic.h: Move to ...
	* sysdeps/aarch64/atomic-machine.h: ...here.
	(_AARCH64_BITS_ATOMIC_H): Rename macro to
	_AARCH64_ATOMIC_MACHINE_H.
	* sysdeps/alpha/bits/atomic.h: Move to ...
	* sysdeps/alpha/atomic-machine.h: ...here.
	* sysdeps/arm/bits/atomic.h: Move to ...
	* sysdeps/arm/atomic-machine.h: ...here.  Update comments.
	* bits/atomic.h: Move to ...
	* sysdeps/generic/atomic-machine.h: ...here.
	(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
	* sysdeps/i386/bits/atomic.h: Move to ...
	* sysdeps/i386/atomic-machine.h: ...here.
	* sysdeps/ia64/bits/atomic.h: Move to ...
	* sysdeps/ia64/atomic-machine.h: ...here.
	* sysdeps/m68k/coldfire/bits/atomic.h: Move to ...
	* sysdeps/m68k/coldfire/atomic-machine.h: ...here.
	(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
	* sysdeps/m68k/m680x0/m68020/bits/atomic.h: Move to ...
	* sysdeps/m68k/m680x0/m68020/atomic-machine.h: ...here.
	* sysdeps/microblaze/bits/atomic.h: Move to ...
	* sysdeps/microblaze/atomic-machine.h: ...here.
	* sysdeps/mips/bits/atomic.h: Move to ...
	* sysdeps/mips/atomic-machine.h: ...here.
	(_MIPS_BITS_ATOMIC_H): Rename macro to _MIPS_ATOMIC_MACHINE_H.
	* sysdeps/powerpc/bits/atomic.h: Move to ...
	* sysdeps/powerpc/atomic-machine.h: ...here.  Update comments.
	* sysdeps/powerpc/powerpc32/bits/atomic.h: Move to ...
	* sysdeps/powerpc/powerpc32/atomic-machine.h: ...here.  Update
	comments.  Include <atomic-machine.h> instead of <bits/atomic.h>.
	* sysdeps/powerpc/powerpc64/bits/atomic.h: Move to ...
	* sysdeps/powerpc/powerpc64/atomic-machine.h: ...here.  Include
	<atomic-machine.h> instead of <bits/atomic.h>.
	* sysdeps/s390/bits/atomic.h: Move to ...
	* sysdeps/s390/atomic-machine.h: ...here.
	* sysdeps/sparc/sparc32/bits/atomic.h: Move to ...
	* sysdeps/sparc/sparc32/atomic-machine.h: ...here.
	(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
	* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: Move to ...
	* sysdeps/sparc/sparc32/sparcv9/atomic-machine.h: ...here.
	* sysdeps/sparc/sparc64/bits/atomic.h: Move to ...
	* sysdeps/sparc/sparc64/atomic-machine.h: ...here.
	* sysdeps/tile/bits/atomic.h: Move to ...
	* sysdeps/tile/atomic-machine.h: ...here.
	* sysdeps/tile/tilegx/bits/atomic.h: Move to ...
	* sysdeps/tile/tilegx/atomic-machine.h: ...here.  Include
	<sysdeps/tile/atomic-machine.h> instead of
	<sysdeps/tile/bits/atomic.h>.
	(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
	* sysdeps/tile/tilepro/bits/atomic.h: Move to ...
	* sysdeps/tile/tilepro/atomic-machine.h: ...here.  Include
	<sysdeps/tile/atomic-machine.h> instead of
	<sysdeps/tile/bits/atomic.h>.
	(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
	* sysdeps/unix/sysv/linux/arm/bits/atomic.h: Move to ...
	* sysdeps/unix/sysv/linux/arm/atomic-machine.h: ...here.  Include
	<sysdeps/arm/atomic-machine.h> instead of
	<sysdeps/arm/bits/atomic.h>.
	* sysdeps/unix/sysv/linux/hppa/bits/atomic.h: Move to ...
	* sysdeps/unix/sysv/linux/hppa/atomic-machine.h: ...here.
	(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
	* sysdeps/unix/sysv/linux/m68k/coldfire/bits/atomic.h: Move to ...
	* sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h: ...here.
	(_BITS_ATOMIC_H): Rename macro to _ATOMIC_MACHINE_H.
	* sysdeps/unix/sysv/linux/nios2/bits/atomic.h: Move to ...
	* sysdeps/unix/sysv/linux/nios2/atomic-machine.h: ...here.
	(_NIOS2_BITS_ATOMIC_H): Rename macro to _NIOS2_ATOMIC_MACHINE_H.
	* sysdeps/unix/sysv/linux/sh/bits/atomic.h: Move to ...
	* sysdeps/unix/sysv/linux/sh/atomic-machine.h: ...here.
	* sysdeps/x86_64/bits/atomic.h: Move to ...
	* sysdeps/x86_64/atomic-machine.h: ...here.
	* include/atomic.h: Include <atomic-machine.h> instead of
	<bits/atomic.h>.

1 files changed, 126 insertions, 0 deletions

diff --git a/sysdeps/sparc/sparc64/atomic-machine.h b/sysdeps/sparc/sparc64/atomic-machine.h
new file mode 100644
index 0000000000..79f4a1d9be
--- /dev/null
+++ b/sysdeps/sparc/sparc64/atomic-machine.h
@@ -0,0 +1,126 @@
+/* Atomic operations.  sparc64 version.
+   Copyright (C) 2003-2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.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 <stdint.h>
+
+typedef int8_t atomic8_t;
+typedef uint8_t uatomic8_t;
+typedef int_fast8_t atomic_fast8_t;
+typedef uint_fast8_t uatomic_fast8_t;
+
+typedef int16_t atomic16_t;
+typedef uint16_t uatomic16_t;
+typedef int_fast16_t atomic_fast16_t;
+typedef uint_fast16_t uatomic_fast16_t;
+
+typedef int32_t atomic32_t;
+typedef uint32_t uatomic32_t;
+typedef int_fast32_t atomic_fast32_t;
+typedef uint_fast32_t uatomic_fast32_t;
+
+typedef int64_t atomic64_t;
+typedef uint64_t uatomic64_t;
+typedef int_fast64_t atomic_fast64_t;
+typedef uint_fast64_t uatomic_fast64_t;
+
+typedef intptr_t atomicptr_t;
+typedef uintptr_t uatomicptr_t;
+typedef intmax_t atomic_max_t;
+typedef uintmax_t uatomic_max_t;
+
+#define __HAVE_64B_ATOMICS 1
+#define USE_ATOMIC_COMPILER_BUILTINS 0
+
+
+#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \
+  (abort (), (__typeof (*mem)) 0)
+
+#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \
+  (abort (), (__typeof (*mem)) 0)
+
+#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
+({									      \
+  __typeof (*(mem)) __acev_tmp;						      \
+  __typeof (mem) __acev_mem = (mem);					      \
+  if (__builtin_constant_p (oldval) && (oldval) == 0)			      \
+    __asm __volatile ("cas [%3], %%g0, %0"				      \
+		      : "=r" (__acev_tmp), "=m" (*__acev_mem)		      \
+		      : "m" (*__acev_mem), "r" (__acev_mem),		      \
+		        "0" (newval) : "memory");			      \
+  else									      \
+    __asm __volatile ("cas [%4], %2, %0"				      \
+		      : "=r" (__acev_tmp), "=m" (*__acev_mem)		      \
+		      : "r" (oldval), "m" (*__acev_mem), "r" (__acev_mem),    \
+		        "0" (newval) : "memory");			      \
+  __acev_tmp; })
+
+#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
+({									      \
+  __typeof (*(mem)) __acev_tmp;						      \
+  __typeof (mem) __acev_mem = (mem);					      \
+  if (__builtin_constant_p (oldval) && (oldval) == 0)			      \
+    __asm __volatile ("casx [%3], %%g0, %0"				      \
+		      : "=r" (__acev_tmp), "=m" (*__acev_mem)		      \
+		      : "m" (*__acev_mem), "r" (__acev_mem),		      \
+		        "0" ((long) (newval)) : "memory");		      \
+  else									      \
+    __asm __volatile ("casx [%4], %2, %0"				      \
+		      : "=r" (__acev_tmp), "=m" (*__acev_mem)		      \
+		      : "r" ((long) (oldval)), "m" (*__acev_mem),	      \
+		        "r" (__acev_mem), "0" ((long) (newval)) : "memory");  \
+  __acev_tmp; })
+
+#define atomic_exchange_acq(mem, newvalue) \
+  ({ __typeof (*(mem)) __oldval, __val;					      \
+     __typeof (mem) __memp = (mem);					      \
+     __typeof (*(mem)) __value = (newvalue);				      \
+									      \
+     if (sizeof (*(mem)) == 4)						      \
+       __asm ("swap %0, %1"						      \
+	      : "=m" (*__memp), "=r" (__oldval)				      \
+	      : "m" (*__memp), "1" (__value) : "memory");		      \
+     else								      \
+       {								      \
+	 __val = *__memp;						      \
+	 do								      \
+	   {								      \
+	     __oldval = __val;						      \
+	     __val = atomic_compare_and_exchange_val_acq (__memp, __value,    \
+							  __oldval);	      \
+	   }								      \
+         while (__builtin_expect (__val != __oldval, 0));		      \
+       }								      \
+     __oldval; })
+
+#define atomic_compare_and_exchange_val_24_acq(mem, newval, oldval) \
+  atomic_compare_and_exchange_val_acq (mem, newval, oldval)
+
+#define atomic_exchange_24_rel(mem, newval) \
+  atomic_exchange_rel (mem, newval)
+
+#define atomic_full_barrier() \
+  __asm __volatile ("membar #LoadLoad | #LoadStore"			      \
+			  " | #StoreLoad | #StoreStore" : : : "memory")
+#define atomic_read_barrier() \
+  __asm __volatile ("membar #LoadLoad | #LoadStore" : : : "memory")
+#define atomic_write_barrier() \
+  __asm __volatile ("membar #LoadStore | #StoreStore" : : : "memory")
+
+extern void __cpu_relax (void);
+#define atomic_spin_nop() __cpu_relax ()