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-rw-r--r--libc/sysdeps/linux/m68k/bits/atomicity.h64
1 files changed, 0 insertions, 64 deletions
diff --git a/libc/sysdeps/linux/m68k/bits/atomicity.h b/libc/sysdeps/linux/m68k/bits/atomicity.h
deleted file mode 100644
index db1c9bfae..000000000
--- a/libc/sysdeps/linux/m68k/bits/atomicity.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/* Low-level functions for atomic operations. m680x0 version, x >= 2.
- Copyright (C) 1997 Free Software Foundation, Inc.
- Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>.
- 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#ifndef _ATOMICITY_H
-#define _ATOMICITY_H 1
-
-#include <inttypes.h>
-
-
-static inline int
-__attribute_used__
-exchange_and_add (volatile uint32_t *mem, int val)
-{
- register int result = *mem;
- register int temp;
- __asm__ __volatile__ ("1: move%.l %0,%1;"
- " add%.l %2,%1;"
- " cas%.l %0,%1,%3;"
- " jbne 1b"
- : "=d" (result), "=&d" (temp)
- : "d" (val), "m" (*mem), "0" (result) : "memory");
- return result;
-}
-
-static inline void
-__attribute_used__
-atomic_add (volatile uint32_t *mem, int val)
-{
- /* XXX Use cas here as well? */
- __asm__ __volatile__ ("add%.l %0,%1"
- : : "id" (val), "m" (*mem) : "memory");
-}
-
-static inline int
-__attribute_used__
-compare_and_swap (volatile long int *p, long int oldval, long int newval)
-{
- char ret;
- long int readval;
-
- __asm__ __volatile__ ("cas%.l %2,%3,%1; seq %0"
- : "=dm" (ret), "=m" (*p), "=d" (readval)
- : "d" (newval), "m" (*p), "2" (oldval));
- return ret;
-}
-
-#endif /* atomicity.h */