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Diffstat (limited to 'sysdeps/s390/atomic-machine.h')
| -rw-r--r-- | sysdeps/s390/atomic-machine.h | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/sysdeps/s390/atomic-machine.h b/sysdeps/s390/atomic-machine.h deleted file mode 100644 index adaca40798..0000000000 --- a/sysdeps/s390/atomic-machine.h +++ /dev/null @@ -1,161 +0,0 @@ -/* Copyright (C) 2003-2017 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; - -/* Activate all C11 atomic builtins. - - Note: - E.g. in nptl/pthread_key_delete.c if compiled with GCCs 6 and before, - an extra stack-frame is generated and the old value is stored on stack - before cs instruction but it never loads this value from stack. - An unreleased GCC 7 omit those stack operations. - - E.g. in nptl/pthread_once.c the condition code of cs instruction is - evaluated by a sequence of ipm, sra, compare and jump instructions instead - of one conditional jump instruction. This also occurs with an unreleased - GCC 7. - - The atomic_fetch_abc_def C11 builtins are now using load-and-abc instructions - on z196 zarch and higher cpus instead of a loop with compare-and-swap - instruction. */ -#define USE_ATOMIC_COMPILER_BUILTINS 1 - -#ifdef __s390x__ -# define __HAVE_64B_ATOMICS 1 -#else -# define __HAVE_64B_ATOMICS 0 -#endif - -#define ATOMIC_EXCHANGE_USES_CAS 1 - -/* Implement some of the non-C11 atomic macros from include/atomic.h - with help of the C11 atomic builtins. The other non-C11 atomic macros - are using the macros defined here. */ - -/* Atomically store NEWVAL in *MEM if *MEM is equal to OLDVAL. - Return the old *MEM value. */ -#define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \ - ({ __atomic_check_size((mem)); \ - typeof ((__typeof (*(mem))) *(mem)) __atg1_oldval = (oldval); \ - __atomic_compare_exchange_n (mem, (void *) &__atg1_oldval, \ - newval, 1, __ATOMIC_ACQUIRE, \ - __ATOMIC_RELAXED); \ - __atg1_oldval; }) -#define atomic_compare_and_exchange_val_rel(mem, newval, oldval) \ - ({ __atomic_check_size((mem)); \ - typeof ((__typeof (*(mem))) *(mem)) __atg1_2_oldval = (oldval); \ - __atomic_compare_exchange_n (mem, (void *) &__atg1_2_oldval, \ - newval, 1, __ATOMIC_RELEASE, \ - __ATOMIC_RELAXED); \ - __atg1_2_oldval; }) - -/* Atomically store NEWVAL in *MEM if *MEM is equal to OLDVAL. - Return zero if *MEM was changed or non-zero if no exchange happened. */ -#define atomic_compare_and_exchange_bool_acq(mem, newval, oldval) \ - ({ __atomic_check_size((mem)); \ - typeof ((__typeof (*(mem))) *(mem)) __atg2_oldval = (oldval); \ - !__atomic_compare_exchange_n (mem, (void *) &__atg2_oldval, newval, \ - 1, __ATOMIC_ACQUIRE, \ - __ATOMIC_RELAXED); }) -#define catomic_compare_and_exchange_bool_acq(mem, newval, oldval) \ - atomic_compare_and_exchange_bool_acq (mem, newval, oldval) - -/* Store NEWVALUE in *MEM and return the old value. */ -#define atomic_exchange_acq(mem, newvalue) \ - ({ __atomic_check_size((mem)); \ - __atomic_exchange_n (mem, newvalue, __ATOMIC_ACQUIRE); }) -#define atomic_exchange_rel(mem, newvalue) \ - ({ __atomic_check_size((mem)); \ - __atomic_exchange_n (mem, newvalue, __ATOMIC_RELEASE); }) - -/* Add VALUE to *MEM and return the old value of *MEM. */ -/* The gcc builtin uses load-and-add instruction on z196 zarch and higher cpus - instead of a loop with compare-and-swap instruction. */ -# define atomic_exchange_and_add_acq(mem, operand) \ - ({ __atomic_check_size((mem)); \ - __atomic_fetch_add ((mem), (operand), __ATOMIC_ACQUIRE); }) -# define atomic_exchange_and_add_rel(mem, operand) \ - ({ __atomic_check_size((mem)); \ - __atomic_fetch_add ((mem), (operand), __ATOMIC_RELEASE); }) -#define catomic_exchange_and_add(mem, value) \ - atomic_exchange_and_add (mem, value) - -/* Atomically *mem |= mask and return the old value of *mem. */ -/* The gcc builtin uses load-and-or instruction on z196 zarch and higher cpus - instead of a loop with compare-and-swap instruction. */ -#define atomic_or_val(mem, operand) \ - ({ __atomic_check_size((mem)); \ - __atomic_fetch_or ((mem), (operand), __ATOMIC_ACQUIRE); }) -/* Atomically *mem |= mask. */ -#define atomic_or(mem, mask) \ - do { \ - atomic_or_val (mem, mask); \ - } while (0) -#define catomic_or(mem, mask) \ - atomic_or (mem, mask) - -/* Atomically *mem |= 1 << bit and return true if the bit was set in old value - of *mem. */ -/* The load-and-or instruction is used on z196 zarch and higher cpus - instead of a loop with compare-and-swap instruction. */ -#define atomic_bit_test_set(mem, bit) \ - ({ __typeof (*(mem)) __atg14_old; \ - __typeof (mem) __atg14_memp = (mem); \ - __typeof (*(mem)) __atg14_mask = ((__typeof (*(mem))) 1 << (bit)); \ - __atg14_old = atomic_or_val (__atg14_memp, __atg14_mask); \ - __atg14_old & __atg14_mask; }) - -/* Atomically *mem &= mask and return the old value of *mem. */ -/* The gcc builtin uses load-and-and instruction on z196 zarch and higher cpus - instead of a loop with compare-and-swap instruction. */ -#define atomic_and_val(mem, operand) \ - ({ __atomic_check_size((mem)); \ - __atomic_fetch_and ((mem), (operand), __ATOMIC_ACQUIRE); }) -/* Atomically *mem &= mask. */ -#define atomic_and(mem, mask) \ - do { \ - atomic_and_val (mem, mask); \ - } while (0) -#define catomic_and(mem, mask) \ - atomic_and(mem, mask) |