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Diffstat (limited to 'sysdeps/m68k/coldfire/atomic-machine.h')
| -rw-r--r-- | sysdeps/m68k/coldfire/atomic-machine.h | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/sysdeps/m68k/coldfire/atomic-machine.h b/sysdeps/m68k/coldfire/atomic-machine.h deleted file mode 100644 index d2e4a1f15d..0000000000 --- a/sysdeps/m68k/coldfire/atomic-machine.h +++ /dev/null @@ -1,75 +0,0 @@ -/* Copyright (C) 2003-2017 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 _ATOMIC_MACHINE_H -#define _ATOMIC_MACHINE_H 1 - -#include <stdint.h> - -/* Coldfire has no atomic compare-and-exchange operation, and the - kernel provides no userspace atomicity operations. Here we just - use generic non-atomic implementations instead. */ - -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; - -/* If we have just non-atomic operations, we can as well make them wide. */ -#define __HAVE_64B_ATOMICS 1 -#define USE_ATOMIC_COMPILER_BUILTINS 0 - -/* XXX Is this actually correct? */ -#define ATOMIC_EXCHANGE_USES_CAS 1 - -/* The only basic operation needed is compare and exchange. */ -#define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \ - ({ __typeof (mem) __gmemp = (mem); \ - __typeof (*mem) __gret = *__gmemp; \ - __typeof (*mem) __gnewval = (newval); \ - \ - if (__gret == (oldval)) \ - *__gmemp = __gnewval; \ - __gret; }) - -#define atomic_compare_and_exchange_bool_acq(mem, newval, oldval) \ - ({ __typeof (mem) __gmemp = (mem); \ - __typeof (*mem) __gnewval = (newval); \ - \ - *__gmemp == (oldval) ? (*__gmemp = __gnewval, 0) : 1; }) - -#endif |