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Diffstat (limited to 'sysdeps/sparc/sparc32/sparcv9/atomicity.h')
-rw-r--r--sysdeps/sparc/sparc32/sparcv9/atomicity.h82
1 files changed, 0 insertions, 82 deletions
diff --git a/sysdeps/sparc/sparc32/sparcv9/atomicity.h b/sysdeps/sparc/sparc32/sparcv9/atomicity.h
index f32ddf4ffc..e69de29bb2 100644
--- a/sysdeps/sparc/sparc32/sparcv9/atomicity.h
+++ b/sysdeps/sparc/sparc32/sparcv9/atomicity.h
@@ -1,82 +0,0 @@
-/* Low-level functions for atomic operations. Sparc32+v9 version.
- Copyright (C) 1999 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, 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__ ((unused))
-exchange_and_add (volatile uint32_t *mem, int val)
-{
- uint32_t tmp1, tmp2;
-
- __asm__ __volatile__("1: lduw [%2], %0\n\t"
- " add %0, %3, %1\n\t"
- " cas [%2], %0, %1\n\t"
- " sub %0, %1, %0\n\t"
- " brnz,pn %0, 1b\n\t"
- " nop"
- : "=&r" (tmp1), "=&r" (tmp2)
- : "r" (mem), "r" (val)
- : "memory");
- return tmp2;
-}
-
-static inline void
-__attribute__ ((unused))
-atomic_add (volatile uint32_t *mem, int val)
-{
- uint32_t tmp1, tmp2;
-
- __asm__ __volatile__("1: lduw [%2], %0\n\t"
- " add %0, %3, %1\n\t"
- " cas [%2], %0, %1\n\t"
- " sub %0, %1, %0\n\t"
- " brnz,pn %0, 1b\n\t"
- " nop"
- : "=&r" (tmp1), "=&r" (tmp2)
- : "r" (mem), "r" (val)
- : "memory");
-}
-
-static inline int
-__attribute__ ((unused))
-compare_and_swap (volatile long int *p, long int oldval, long int newval)
-{
- register long int tmp, tmp2;
-
- __asm__ __volatile__("1: lduw [%4], %0\n\t"
- " mov %2, %1\n\t"
- " cmp %0, %3\n\t"
- " bne,a,pn %%xcc, 2f\n\t"
- " mov 0, %0\n\t"
- " cas [%4], %0, %1\n\t"
- " sub %0, %1, %0\n\t"
- " brnz,pn %0, 1b\n\t"
- " mov 1, %0\n\t"
- "2:"
- : "=&r" (tmp), "=&r" (tmp2)
- : "r" (newval), "r" (oldval), "r" (p)
- : "memory");
- return tmp;
-}
-
-#endif /* atomicity.h */