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+/* Copyright (C) 2003 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#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 __arch_compare_and_exchange_8_acq(mem, newval, oldval) \
+ (abort (), 0)
+
+#define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \
+ (abort (), 0)
+
+#define __arch_compare_and_exchange_32_acq(mem, newval, oldval) \
+ ({ unsigned int *__mem = (unsigned int *) (mem); \
+ unsigned int __old = (unsigned int) (oldval); \
+ unsigned int __cmp = __old; \
+ __asm __volatile ("cs %0,%2,%1" \
+ : "+d" (__old), "=Q" (*__mem) \
+ : "d" (newval), "m" (*__mem) : "cc" ); \
+ __cmp != __old; })
+
+#ifdef __s390x__
+# define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
+ ({ unsigned long int *__mem = (unsigned long int *) (mem); \
+ unsigned long int __old = (unsigned long int) (oldval); \
+ unsigned long int __cmp = __old; \
+ __asm __volatile ("csg %0,%2,%1" \
+ : "+d" (__old), "=Q" (*__mem) \
+ : "d" (newval), "m" (*__mem) : "cc" ); \
+ __cmp != __old; })
+#else
+/* 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_64_acq(mem, newval, oldval) \
+ (abort (), 0)
+#endif