1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /*
28 * Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T
29 * All Rights Reserved
30 *
31 * Portions of this source code were derived from Berkeley
32 * 4.3 BSD under license from the regents of the University of
33 * California.
34 */
35
36 #pragma ident "%Z%%M% %I% %E% SMI"
37
38 /*
39 * contains definitions for variables for IEEE floating-point arithmetic
40 * modes; IEEE floating-point arithmetic exception handling;
41 */
42
43 #include "lint.h"
44 #include <thread.h>
45 #include <synch.h>
46 #include <mtlib.h>
47 #include "tsd.h"
48
49 int __inf_read, __inf_written, __nan_read, __nan_written;
50
51 /*
52 * Per-thread instances (thread-specific data) of the above globals.
53 */
54 typedef struct {
55 int __inf_read;
56 int __inf_written;
57 int __nan_read;
58 int __nan_written;
59 } fpvars_t;
60
61 #define fpvars ((fpvars_t *)tsdalloc(_T_FP_GET, sizeof (fpvars_t), NULL))
62
63 int *
_thrp_get_nan_written()64 _thrp_get_nan_written()
65 {
66 return (thr_main() ? &__nan_written : &fpvars->__nan_written);
67 }
68
69 int *
_thrp_get_nan_read()70 _thrp_get_nan_read()
71 {
72 return (thr_main() ? &__nan_read : &fpvars->__nan_read);
73 }
74
75 int *
_thrp_get_inf_written()76 _thrp_get_inf_written()
77 {
78 return (thr_main() ? &__inf_written : &fpvars->__inf_written);
79 }
80
81 int *
_thrp_get_inf_read()82 _thrp_get_inf_read()
83 {
84 return (thr_main() ? &__inf_read : &fpvars->__inf_read);
85 }
86