diff options
Diffstat (limited to 'sysdeps/s390/bits')
| -rw-r--r-- | sysdeps/s390/bits/atomic.h | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/sysdeps/s390/bits/atomic.h b/sysdeps/s390/bits/atomic.h deleted file mode 100644 index 16c8c54b94..0000000000 --- a/sysdeps/s390/bits/atomic.h +++ /dev/null @@ -1,120 +0,0 @@ -/* Copyright (C) 2003-2015 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, see - <http://www.gnu.org/licenses/>. */ - -#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 USE_ATOMIC_COMPILER_BUILTINS 0 - - -#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 __HAVE_64B_ATOMICS 1 -# 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 -# define __HAVE_64B_ATOMICS 0 -/* 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 - -/* Store NEWVALUE in *MEM and return the old value. */ -/* On s390, the atomic_exchange_acq is different from generic implementation, - because the generic one does not use the condition-code of cs-instruction - to determine if looping is needed. Instead it saves the old-value and - compares it against old-value returned by cs-instruction. */ -#ifdef __s390x__ -# define atomic_exchange_acq(mem, newvalue) \ - ({ __typeof (mem) __atg5_memp = (mem); \ - __typeof (*(mem)) __atg5_oldval = *__atg5_memp; \ - __typeof (*(mem)) __atg5_value = (newvalue); \ - if (sizeof (*mem) == 4) \ - __asm __volatile ("0: cs %0,%2,%1\n" \ - " jl 0b" \ - : "+d" (__atg5_oldval), "=Q" (*__atg5_memp) \ - : "d" (__atg5_value), "m" (*__atg5_memp) \ - : "cc", "memory" ); \ - else if (sizeof (*mem) == 8) \ - __asm __volatile ("0: csg %0,%2,%1\n" \ - " jl 0b" \ - : "+d" ( __atg5_oldval), "=Q" (*__atg5_memp) \ - : "d" ((long) __atg5_value), "m" (*__atg5_memp) \ - : "cc", "memory" ); \ - else \ - abort (); \ - __atg5_oldval; }) -#else -# define atomic_exchange_acq(mem, newvalue) \ - ({ __typeof (mem) __atg5_memp = (mem); \ - __typeof (*(mem)) __atg5_oldval = *__atg5_memp; \ - __typeof (*(mem)) __atg5_value = (newvalue); \ - if (sizeof (*mem) == 4) \ - __asm __volatile ("0: cs %0,%2,%1\n" \ - " jl 0b" \ - : "+d" (__atg5_oldval), "=Q" (*__atg5_memp) \ - : "d" (__atg5_value), "m" (*__atg5_memp) \ - : "cc", "memory" ); \ - else \ - abort (); \ - __atg5_oldval; }) -#endif |