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 /*
37 * contains definitions for variables for IEEE floating-point arithmetic
38 * modes; IEEE floating-point arithmetic exception handling;
39 */
40
41 #include "lint.h"
42 #include <thread.h>
43 #include <synch.h>
44 #include <mtlib.h>
45 #include "tsd.h"
46
47 int __inf_read, __inf_written, __nan_read, __nan_written;
48
49 /*
50 * Per-thread instances (thread-specific data) of the above globals.
51 */
52 typedef struct {
53 int __inf_read;
54 int __inf_written;
55 int __nan_read;
56 int __nan_written;
57 } fpvars_t;
58
59 #define fpvars ((fpvars_t *)tsdalloc(_T_FP_GET, sizeof (fpvars_t), NULL))
60
61 int *
_thrp_get_nan_written()62 _thrp_get_nan_written()
63 {
64 return (thr_main() ? &__nan_written : &fpvars->__nan_written);
65 }
66
67 int *
_thrp_get_nan_read()68 _thrp_get_nan_read()
69 {
70 return (thr_main() ? &__nan_read : &fpvars->__nan_read);
71 }
72
73 int *
_thrp_get_inf_written()74 _thrp_get_inf_written()
75 {
76 return (thr_main() ? &__inf_written : &fpvars->__inf_written);
77 }
78
79 int *
_thrp_get_inf_read()80 _thrp_get_inf_read()
81 {
82 return (thr_main() ? &__inf_read : &fpvars->__inf_read);
83 }
84