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| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/m68k/m68020/atomicity.h | 64 |
2 files changed, 5 insertions, 64 deletions
@@ -1,3 +1,8 @@ +2003-03-22 Andreas Schwab <schwab@suse.de> + + * sysdeps/m68k/m68020/bits/atomic.h: New file. + * sysdeps/m68k/m68020/atomicity.h: Removed. + 2003-03-22 Alexandre Oliva <aoliva@redhat.com> * sysdeps/mips/elf/ldsodefs.h: Add mips-specific elf64 relocation diff --git a/sysdeps/m68k/m68020/atomicity.h b/sysdeps/m68k/m68020/atomicity.h deleted file mode 100644 index 4649480867..0000000000 --- a/sysdeps/m68k/m68020/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__ ((unused)) -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__ ((unused)) -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__ ((unused)) -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 */ |