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Diffstat (limited to 'sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h')
-rw-r--r--sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h b/sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h
index 61c30b31fa..f402ac6139 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/atomic-machine.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2010-2016 Free Software Foundation, Inc.
+/* Copyright (C) 2010-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Maxim Kuvyrkov <maxim@codesourcery.com>, 2010.
@@ -39,6 +39,9 @@ typedef uintmax_t uatomic_max_t;
#define __HAVE_64B_ATOMICS 0
#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. */
/* For ColdFire we'll have to trap into the kernel mode anyway,
so trap from the library rather then from the kernel wrapper. */