ieee_globals.c revision 7257d1b4d25bfac0c802847390e98a464fd787ac
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T
* All Rights Reserved
*
* Portions of this source code were derived from Berkeley
* 4.3 BSD under license from the regents of the University of
* California.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* contains definitions for variables for IEEE floating-point arithmetic
* modes; IEEE floating-point arithmetic exception handling;
*/
#include "lint.h"
#include <thread.h>
#include <synch.h>
#include <mtlib.h>
#include "tsd.h"
int __inf_read, __inf_written, __nan_read, __nan_written;
/*
* Per-thread instances (thread-specific data) of the above globals.
*/
typedef struct {
int __inf_read;
int __inf_written;
int __nan_read;
int __nan_written;
} fpvars_t;
#define fpvars ((fpvars_t *)tsdalloc(_T_FP_GET, sizeof (fpvars_t), NULL))
int *
_thrp_get_nan_written()
{
return (thr_main() ? &__nan_written : &fpvars->__nan_written);
}
int *
_thrp_get_nan_read()
{
return (thr_main() ? &__nan_read : &fpvars->__nan_read);
}
int *
_thrp_get_inf_written()
{
return (thr_main() ? &__inf_written : &fpvars->__inf_written);
}
int *
_thrp_get_inf_read()
{
return (thr_main() ? &__inf_read : &fpvars->__inf_read);
}