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Diffstat (limited to 'sysdeps/csky/atomic-machine.h')
| -rw-r--r-- | sysdeps/csky/atomic-machine.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/sysdeps/csky/atomic-machine.h b/sysdeps/csky/atomic-machine.h new file mode 100644 index 0000000000..0205f839c8 --- /dev/null +++ b/sysdeps/csky/atomic-machine.h @@ -0,0 +1,77 @@ +/* Atomic operations. C-SKY version. + Copyright (C) 2018 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, see + <http://www.gnu.org/licenses/>. */ + +#ifndef __CSKY_ATOMIC_H_ +#define __CSKY_ATOMIC_H_ + +#include <stdint.h> + +typedef int32_t atomic32_t; +typedef uint32_t uatomic32_t; + +typedef intptr_t atomicptr_t; +typedef uintptr_t uatomicptr_t; +typedef intmax_t atomic_max_t; +typedef uintmax_t uatomic_max_t; + +#define __HAVE_64B_ATOMICS 0 +#define USE_ATOMIC_COMPILER_BUILTINS 1 +#define ATOMIC_EXCHANGE_USES_CAS 1 + +#define __arch_compare_and_exchange_bool_8_int(mem, newval, oldval, model) \ + (abort (), 0) + +#define __arch_compare_and_exchange_bool_16_int(mem, newval, oldval, model) \ + (abort (), 0) + +#define __arch_compare_and_exchange_bool_32_int(mem, newval, oldval, model) \ + ({ \ + typeof (*mem) __oldval = (oldval); \ + !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \ + model, __ATOMIC_RELAXED); \ + }) + +#define __arch_compare_and_exchange_bool_64_int(mem, newval, oldval, model) \ + (abort (), 0) + +#define __arch_compare_and_exchange_val_8_int(mem, newval, oldval, model) \ + (abort (), (__typeof (*mem)) 0) + +#define __arch_compare_and_exchange_val_16_int(mem, newval, oldval, model) \ + (abort (), (__typeof (*mem)) 0) + +#define __arch_compare_and_exchange_val_32_int(mem, newval, oldval, model) \ + ({ \ + typeof (*mem) __oldval = (oldval); \ + __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \ + model, __ATOMIC_RELAXED); \ + __oldval; \ + }) + +#define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \ + (abort (), (__typeof (*mem)) 0) + +#define atomic_compare_and_exchange_bool_acq(mem, new, old) \ + __atomic_bool_bysize (__arch_compare_and_exchange_bool, int, \ + mem, new, old, __ATOMIC_ACQUIRE) + +#define atomic_compare_and_exchange_val_acq(mem, new, old) \ + __atomic_val_bysize (__arch_compare_and_exchange_val, int, \ + mem, new, old, __ATOMIC_ACQUIRE) + +#endif /* atomic-machine.h */ |