| /* 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_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) \ |
| ({ __typeof (mem) __archmem = (mem); \ |
| __typeof (*mem) __archold = (oldval); \ |
| __asm __volatile ("cs %0,%2,%1" \ |
| : "+d" (__archold), "=Q" (*__archmem) \ |
| : "d" (newval), "m" (*__archmem) : "cc", "memory" ); \ |
| __archold; }) |
| |
| #ifdef __s390x__ |
| # define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \ |
| ({ __typeof (mem) __archmem = (mem); \ |
| __typeof (*mem) __archold = (oldval); \ |
| __asm __volatile ("csg %0,%2,%1" \ |
| : "+d" (__archold), "=Q" (*__archmem) \ |
| : "d" ((long) (newval)), "m" (*__archmem) : "cc", "memory" ); \ |
| __archold; }) |
| #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_val_64_acq(mem, newval, oldval) \ |
| (abort (), (__typeof (*mem)) 0) |
| #endif |