projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 5f72b005 | 1 | /* Atomic operations. C-SKY version. |
| 2b778ceb | 2 | Copyright (C) 2018-2021 Free Software Foundation, Inc. |
| 5f72b005 MH |
3 | This file is part of the GNU C Library. |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Lesser General Public | |
| 7 | License as published by the Free Software Foundation; either | |
| 8 | version 2.1 of the License, or (at your option) any later version. | |
| 9 | ||
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Lesser General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public | |
| 16 | License along with the GNU C Library. If not, see | |
| 5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
| 5f72b005 MH |
18 | |
| 19 | #ifndef __CSKY_ATOMIC_H_ | |
| 20 | #define __CSKY_ATOMIC_H_ | |
| 21 | ||
| 22 | #include <stdint.h> | |
| 23 | ||
| 24 | typedef int32_t atomic32_t; | |
| 25 | typedef uint32_t uatomic32_t; | |
| 26 | ||
| 27 | typedef intptr_t atomicptr_t; | |
| 28 | typedef uintptr_t uatomicptr_t; | |
| 29 | typedef intmax_t atomic_max_t; | |
| 30 | typedef uintmax_t uatomic_max_t; | |
| 31 | ||
| 32 | #define __HAVE_64B_ATOMICS 0 | |
| 33 | #define USE_ATOMIC_COMPILER_BUILTINS 1 | |
| 34 | #define ATOMIC_EXCHANGE_USES_CAS 1 | |
| 35 | ||
| 36 | #define __arch_compare_and_exchange_bool_8_int(mem, newval, oldval, model) \ | |
| 37 | (abort (), 0) | |
| 38 | ||
| 39 | #define __arch_compare_and_exchange_bool_16_int(mem, newval, oldval, model) \ | |
| 40 | (abort (), 0) | |
| 41 | ||
| 42 | #define __arch_compare_and_exchange_bool_32_int(mem, newval, oldval, model) \ | |
| 43 | ({ \ | |
| 44 | typeof (*mem) __oldval = (oldval); \ | |
| 45 | !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \ | |
| 46 | model, __ATOMIC_RELAXED); \ | |
| 47 | }) | |
| 48 | ||
| 49 | #define __arch_compare_and_exchange_bool_64_int(mem, newval, oldval, model) \ | |
| 50 | (abort (), 0) | |
| 51 | ||
| 52 | #define __arch_compare_and_exchange_val_8_int(mem, newval, oldval, model) \ | |
| 53 | (abort (), (__typeof (*mem)) 0) | |
| 54 | ||
| 55 | #define __arch_compare_and_exchange_val_16_int(mem, newval, oldval, model) \ | |
| 56 | (abort (), (__typeof (*mem)) 0) | |
| 57 | ||
| 58 | #define __arch_compare_and_exchange_val_32_int(mem, newval, oldval, model) \ | |
| 59 | ({ \ | |
| 60 | typeof (*mem) __oldval = (oldval); \ | |
| 61 | __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0, \ | |
| 62 | model, __ATOMIC_RELAXED); \ | |
| 63 | __oldval; \ | |
| 64 | }) | |
| 65 | ||
| 66 | #define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \ | |
| 67 | (abort (), (__typeof (*mem)) 0) | |
| 68 | ||
| 69 | #define atomic_compare_and_exchange_bool_acq(mem, new, old) \ | |
| 70 | __atomic_bool_bysize (__arch_compare_and_exchange_bool, int, \ | |
| 71 | mem, new, old, __ATOMIC_ACQUIRE) | |
| 72 | ||
| 73 | #define atomic_compare_and_exchange_val_acq(mem, new, old) \ | |
| 74 | __atomic_val_bysize (__arch_compare_and_exchange_val, int, \ | |
| 75 | mem, new, old, __ATOMIC_ACQUIRE) | |
| 76 | ||
| 77 | #endif /* atomic-machine.h */ |