import new headers from upstream via psm

1 files changed, 119 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/ia64/bits/atomic.h b/libc/sysdeps/linux/ia64/bits/atomic.h
new file mode 100644
index 000000000..1020c2f22
--- /dev/null
+++ b/libc/sysdeps/linux/ia64/bits/atomic.h
@@ -0,0 +1,119 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   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.  */
+
+#include <stdint.h>
+#include <ia64intrin.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_bool_8_acq(mem, newval, oldval) \
+  (abort (), 0)
+
+#define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval) \
+  (abort (), 0)
+
+#define __arch_compare_and_exchange_bool_32_acq(mem, newval, oldval) \
+  (!__sync_bool_compare_and_swap ((mem), (int) (long) (oldval), \
+				  (int) (long) (newval)))
+
+#define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \
+  (!__sync_bool_compare_and_swap ((mem), (long) (oldval), \
+				  (long) (newval)))
+
+#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) \
+  __sync_val_compare_and_swap ((mem), (int) (long) (oldval), \
+			       (int) (long) (newval))
+
+#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
+  __sync_val_compare_and_swap ((mem), (long) (oldval), (long) (newval))
+
+/* Atomically store newval and return the old value.  */
+#define atomic_exchange_acq(mem, value) \
+  __sync_lock_test_and_set (mem, value)
+
+#define atomic_exchange_rel(mem, value) \
+  (__sync_synchronize (), __sync_lock_test_and_set (mem, value))
+
+#define atomic_exchange_and_add(mem, value) \
+  ({ __typeof (*mem) __result;						      \
+     __result = __sync_fetch_and_add ((mem), (int) (value));		      \
+     __result; })
+
+#define atomic_decrement_if_positive(mem) \
+  ({ __typeof (*mem) __oldval, __val;					      \
+     __typeof (mem) __memp = (mem);					      \
+									      \
+     __val = (*__memp);							      \
+     do									      \
+       {								      \
+	 __oldval = __val;						      \
+	 if (__builtin_expect (__val <= 0, 0))				      \
+	   break;							      \
+	 __val = atomic_compare_and_exchange_val_acq (__memp,	__oldval - 1, \
+						      __oldval);	      \
+       }								      \
+     while (__builtin_expect (__val != __oldval, 0));			      \
+     __oldval; })
+
+#define atomic_bit_test_set(mem, bit) \
+  ({ __typeof (*mem) __oldval, __val;					      \
+     __typeof (mem) __memp = (mem);					      \
+     __typeof (*mem) __mask = ((__typeof (*mem)) 1 << (bit));		      \
+									      \
+     __val = (*__memp);							      \
+     do									      \
+       {								      \
+	 __oldval = __val;						      \
+	 __val = atomic_compare_and_exchange_val_acq (__memp,		      \
+						      __oldval | __mask,      \
+						      __oldval);	      \
+       }								      \
+     while (__builtin_expect (__val != __oldval, 0));			      \
+     __oldval & __mask; })
+
+#define atomic_full_barrier() __sync_synchronize ()