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author | Roland McGrath <roland@gnu.org> | 2003-03-30 23:36:53 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 2003-03-30 23:36:53 +0000 |
commit | 0a9d1b3b819ea1a43ca39185f6bf77816592fc8b (patch) | |
tree | 8a521f1f3edc2578f699f95b01cc5d4c0327e112 /sysdeps/sparc/sparc32/sparcv9/atomicity.h | |
parent | d692f3f8c33e90f1f8255b20ef2ad0abb8c8e9bd (diff) | |
download | glibc-0a9d1b3b819ea1a43ca39185f6bf77816592fc8b.tar.gz glibc-0a9d1b3b819ea1a43ca39185f6bf77816592fc8b.tar.xz glibc-0a9d1b3b819ea1a43ca39185f6bf77816592fc8b.zip |
* sysdeps/sparc/sparc32/bits/atomic.h: New file.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: New file. * sysdeps/sparc/sparc64/bits/atomic.h: New file. * sysdeps/sparc/sparc32/atomicity.h: Removed. * sysdeps/sparc/sparc32/sparcv9/atomicity.h: Removed. * sysdeps/sparc/sparc64/atomicity.h: Removed.
Diffstat (limited to 'sysdeps/sparc/sparc32/sparcv9/atomicity.h')
-rw-r--r-- | sysdeps/sparc/sparc32/sparcv9/atomicity.h | 82 |
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 */ |