diff options
Diffstat (limited to 'sysdeps/ia64/bits/atomic.h')
| -rw-r--r-- | sysdeps/ia64/bits/atomic.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/sysdeps/ia64/bits/atomic.h b/sysdeps/ia64/bits/atomic.h new file mode 100644 index 0000000000..fab23076cd --- /dev/null +++ b/sysdeps/ia64/bits/atomic.h @@ -0,0 +1,97 @@ +/* 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_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) \ + (!__sync_bool_compare_and_swap_si ((int *) (mem), (int) (long) (oldval), \ + (int) (long) (newval))) + +# define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \ + (!__sync_bool_compare_and_swap_di ((long *) (mem), (long) (oldval), \ + (long) (newval))) + +#define __arch_compare_and_exchange_32_val_acq(mem, newval, oldval) \ + __sync_val_compare_and_swap_si ((int *) (mem), (int) (long) (oldval), \ + (int) (long) (newval)) + +# define __arch_compare_and_exchange_64_val_acq(mem, newval, oldval) \ + __sync_val_compare_and_swap_di ((long *) (mem), (long) (oldval), \ + (long) (newval)) + +# define atomic_exchange_and_add(mem, value) \ + ({ \ + __typeof (*mem) __oldval, __val; \ + __typeof (mem) __memp = (mem); \ + __typeof (*mem) __value = (value); \ + \ + __val = *__memp; \ + if (sizeof (*mem) == 4) \ + do \ + { \ + __oldval = __val; \ + __val = __arch_compare_and_exchange_32_val_acq (__memp, \ + __oldval + __value, \ + __oldval); \ + } \ + while (__builtin_expect (__val != __oldval, 0)); \ + else if (sizeof (*mem) == 8) \ + do \ + { \ + __oldval = __val; \ + __val = __arch_compare_and_exchange_64_val_acq (__memp, \ + __oldval + __value, \ + __oldval); \ + } \ + while (__builtin_expect (__val != __oldval, 0)); \ + else \ + abort (); \ + __oldval + __value; }) |