glibc/sysdeps/m68k/atomic-machine.h

29 lines
1.0 KiB
C

/* Copyright (C) 2003-2025 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
<https://www.gnu.org/licenses/>. */
#ifndef _M68K_ATOMIC_MACHINE_H
#define _M68K_ATOMIC_MACHINE_H 1
#if defined __mc68020__ || defined __mcoldfire__
/* XXX Is this actually correct? */
# define ATOMIC_EXCHANGE_USES_CAS 1
#else
# error "ISAs does not support atomic operations"
#endif
#endif