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glibc/sysdeps/unix/sysv/linux/sh/atomic-machine.h
Wilco Dijkstra 6916b7faf8 atomic: Switch sh to builtin atomics
Switch sh to builtin atomics.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
2025-09-09 13:53:54 +00:00

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C

/* Atomic operations used inside libc. Linux/SH version.
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/>. */
#define __HAVE_64B_ATOMICS 0
#define USE_ATOMIC_COMPILER_BUILTINS 1
/* XXX Is this actually correct? */
#define ATOMIC_EXCHANGE_USES_CAS 1