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-rw-r--r--sysdeps/s390/bits/atomic.h78
-rw-r--r--sysdeps/s390/s390-32/atomicity.h76
-rw-r--r--sysdeps/s390/s390-64/atomicity.h76
3 files changed, 78 insertions, 152 deletions
diff --git a/sysdeps/s390/bits/atomic.h b/sysdeps/s390/bits/atomic.h
new file mode 100644
index 0000000..375ae0d
--- /dev/null
+++ b/sysdeps/s390/bits/atomic.h
@@ -0,0 +1,78 @@
+/* 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
diff --git a/sysdeps/s390/s390-32/atomicity.h b/sysdeps/s390/s390-32/atomicity.h
deleted file mode 100644
index 32a7c0f..0000000
--- a/sysdeps/s390/s390-32/atomicity.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/* Low-level functions for atomic operations. S390 version.
- Copyright (C) 2000, 2001 Free Software Foundation, Inc.
- Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
- 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#ifndef _ATOMICITY_H
-#define _ATOMICITY_H 1
-
-#include <inttypes.h>
-
-static inline int
-__attribute__ ((unused))
-exchange_and_add (volatile uint32_t *mem, int val)
-{
- int result;
- __asm__ __volatile__(
- " L %0,%2\n"
- " LA 2,%1\n"
- "0: LR 0,%0\n"
- " AR 0,%3\n"
- " CS %0,0,0(2)\n"
- " JL 0b"
- : "=&d" (result), "=m" (*mem)
- : "1" (*mem), "d" (val) : "0", "1", "2" );
- return result;
-}
-
-static inline void
-__attribute__ ((unused))
-atomic_add (volatile uint32_t *mem, int val)
-{
- __asm__ __volatile__(
- " LA 2,%0\n"
- "0: L 0,%1\n"
- " LR 1,0\n"
- " AR 1,%2\n"
- " CS 0,1,0(2)\n"
- " JL 0b"
- : "=m" (*mem) : "0" (*mem), "d" (val) : "0", "1", "2" );
-}
-
-static inline int
-__attribute__ ((unused))
-compare_and_swap (volatile long int *p, long int oldval, long int newval)
-{
- int retval;
-
- __asm__ __volatile__(
- " la 1,%1\n"
- " lr 0,%2\n"
- " cs 0,%3,0(1)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:"
- : "=&r" (retval), "+m" (*p)
- : "d" (oldval) , "d" (newval)
- : "memory", "0", "1", "cc");
- return !retval;
-}
-
-#endif /* atomicity.h */
diff --git a/sysdeps/s390/s390-64/atomicity.h b/sysdeps/s390/s390-64/atomicity.h
deleted file mode 100644
index 11a5f7f..0000000
--- a/sysdeps/s390/s390-64/atomicity.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/* Low-level functions for atomic operations. 64 bit S/390 version.
- Copyright (C) 2001 Free Software Foundation, Inc.
- Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
- 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#ifndef _ATOMICITY_H
-#define _ATOMICITY_H 1
-
-#include <inttypes.h>
-
-static inline int
-__attribute__ ((unused))
-exchange_and_add (volatile uint32_t *mem, int val)
-{
- int result;
- __asm__ __volatile__(
- " L %0,%2\n"
- " LA 2,%1\n"
- "0: LR 0,%0\n"
- " AR 0,%3\n"
- " CS %0,0,0(2)\n"
- " JL 0b"
- : "=&d" (result), "=m" (*mem)
- : "1" (*mem), "d" (val) : "0", "1", "2" );
- return result;
-}
-
-static inline void
-__attribute__ ((unused))
-atomic_add (volatile uint32_t *mem, int val)
-{
- __asm__ __volatile__(
- " LA 2,%0\n"
- "0: L 0,%1\n"
- " LR 1,0\n"
- " AR 1,%2\n"
- " CS 0,1,0(2)\n"
- " JL 0b"
- : "=m" (*mem) : "0" (*mem), "d" (val) : "0", "1", "2" );
-}
-
-static inline int
-__attribute__ ((unused))
-compare_and_swap (volatile long int *p, long int oldval, long int newval)
-{
- int retval;
-
- __asm__ __volatile__(
- " la 1,%1\n"
- " lgr 0,%2\n"
- " csg 0,%3,0(1)\n"
- " ipm %0\n"
- " srl %0,28\n"
- "0:"
- : "=&r" (retval), "+m" (*p)
- : "d" (oldval) , "d" (newval)
- : "memory", "0", "1", "cc");
- return !retval;
-}
-
-#endif /* atomicity.h */
generated by cgit v1.1 at 2024-11-10 02:03:17 +0000