qiurui
/
glibc
mirror of git://sourceware.org/git/glibc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Update. 

* sysdeps/ia64/atomicity.h: New file.  Copied from libstdc++.
This commit is contained in:
Ulrich Drepper 2001-04-07 01:21:20 +00:00
parent 5360538bd8
commit 663a2488de
2 changed files with 50 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
ChangeLog
View File

@ -1,5 +1,7 @@
2001-04-06 Ulrich Drepper <drepper@redhat.com> 2001-04-06 Ulrich Drepper <drepper@redhat.com>
* sysdeps/ia64/atomicity.h: New file. Copied from libstdc++.
* sysdeps/i386/i486/atomicity.h: Clean up the asms. * sysdeps/i386/i486/atomicity.h: Clean up the asms.
* sysdeps/generic/e_scalb.c: Don't use FE_INVALID unless it's * sysdeps/generic/e_scalb.c: Don't use FE_INVALID unless it's

48
sysdeps/ia64/atomicity.h Normal file
View File

@ -0,0 +1,48 @@
/* Low-level functions for atomic operations. IA-64 version.
Copyright (C) 2001 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. 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>
#include <ia64intrin.h>
static inline uint32_t
__attribute__ ((unused))
exchange_and_add (volatile uint32_t *mem, uint32_t val)
{
return __sync_fetch_and_add (mem, val);
}
static inline void
__attribute__ ((unused))
atomic_add (volatile uint32_t *mem, int val)
{
__sync_fetch_and_add (mem, val);
}
static inline int
__attribute__ ((unused))
compare_and_swap (volatile long int *p, long int oldval, long int newval)
{
return __sync_bool_compare_and_swap (p, oldval, newval);
}
#endif /* atomicity.h */