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, 120 insertions, 0 deletions

diff --git a/sysdeps/s390/atomic-machine.h b/sysdeps/s390/atomic-machine.h
new file mode 100644
index 0000000000..16c8c54b94
--- /dev/null
+++ b/sysdeps/s390/atomic-machine.h
@@ -0,0 +1,120 @@
+/* Copyright (C) 2003-2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.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 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) __archmem = (mem);					      \
+     __typeof (*mem) __archold = (oldval);				      \
+     __asm __volatile ("cs %0,%2,%1"					      \
+		       : "+d" (__archold), "=Q" (*__archmem)		      \
+		       : "d" (newval), "m" (*__archmem) : "cc", "memory" );	      \
+     __archold; })
+
+#ifdef __s390x__
+# define __HAVE_64B_ATOMICS 1
+# define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
+  ({ __typeof (mem) __archmem = (mem);					      \
+     __typeof (*mem) __archold = (oldval);				      \
+     __asm __volatile ("csg %0,%2,%1"					      \
+		       : "+d" (__archold), "=Q" (*__archmem)		      \
+		       : "d" ((long) (newval)), "m" (*__archmem) : "cc", "memory" );    \
+     __archold; })
+#else
+# define __HAVE_64B_ATOMICS 0
+/* For 31 bit we do not really need 64-bit compare-and-exchange. We can
+   implement them by use of the csd instruction. The straightforward
+   implementation causes warnings so we skip the definition for now.  */
+# define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
+  (abort (), (__typeof (*mem)) 0)
+#endif
+
+/* Store NEWVALUE in *MEM and return the old value.  */
+/* On s390, the atomic_exchange_acq is different from generic implementation,
+   because the generic one does not use the condition-code of cs-instruction
+   to determine if looping is needed. Instead it saves the old-value and
+   compares it against old-value returned by cs-instruction.  */
+#ifdef __s390x__
+# define atomic_exchange_acq(mem, newvalue)				\
+  ({ __typeof (mem) __atg5_memp = (mem);				\
+    __typeof (*(mem)) __atg5_oldval = *__atg5_memp;			\
+    __typeof (*(mem)) __atg5_value = (newvalue);			\
+    if (sizeof (*mem) == 4)						\
+      __asm __volatile ("0: cs %0,%2,%1\n"				\
+			"   jl 0b"					\
+			: "+d" (__atg5_oldval), "=Q" (*__atg5_memp)	\
+			: "d" (__atg5_value), "m" (*__atg5_memp)	\
+			: "cc", "memory" );				\
+     else if (sizeof (*mem) == 8)					\
+       __asm __volatile ("0: csg %0,%2,%1\n"				\
+			 "   jl 0b"					\
+			 : "+d" ( __atg5_oldval), "=Q" (*__atg5_memp)	\
+			 : "d" ((long) __atg5_value), "m" (*__atg5_memp) \
+			 : "cc", "memory" );				\
+     else								\
+       abort ();							\
+     __atg5_oldval; })
+#else
+# define atomic_exchange_acq(mem, newvalue)				\
+  ({ __typeof (mem) __atg5_memp = (mem);				\
+    __typeof (*(mem)) __atg5_oldval = *__atg5_memp;			\
+    __typeof (*(mem)) __atg5_value = (newvalue);			\
+    if (sizeof (*mem) == 4)						\
+      __asm __volatile ("0: cs %0,%2,%1\n"				\
+			"   jl 0b"					\
+			: "+d" (__atg5_oldval), "=Q" (*__atg5_memp)	\
+			: "d" (__atg5_value), "m" (*__atg5_memp)	\
+			: "cc", "memory" );				\
+    else								\
+      abort ();								\
+    __atg5_oldval; })
+#endif