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5261 libm should stop using synonyms.h
5298 fabs is 0-sized, confuses dis(1) and others
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Approved by: Gordon Ross <gwr@nexenta.com>
5262 libm needs to be carefully unifdef'd
5268 libm doesn't need to hide symbols which are already local
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Reviewed by: Gordon Ross <gwr@nexenta.com>
Approved by: Gordon Ross <gwr@nexenta.com>
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--- old/usr/src/lib/libm/common/m9x/llrint.c
+++ new/usr/src/lib/libm/common/m9x/llrint.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
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20 20 */
21 21
22 22 /*
23 23 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
24 24 */
25 25 /*
26 26 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
27 27 * Use is subject to license terms.
28 28 */
29 29
30 -#if defined(ELFOBJ)
31 -#pragma weak llrint = __llrint
30 +#pragma weak __llrint = llrint
32 31 #if defined(__sparcv9) || defined(__amd64)
33 -#pragma weak lrint = __llrint
34 -#pragma weak __lrint = __llrint
35 -#endif
32 +#pragma weak lrint = llrint
33 +#pragma weak __lrint = llrint
36 34 #endif
37 35
38 36 /*
39 37 * llrint(x) rounds its argument to the nearest integer according
40 38 * to the current rounding direction and converts the result to a
41 39 * 64 bit signed integer.
42 40 *
43 41 * If x is NaN, infinite, or so large that the nearest integer would
44 42 * exceed 64 bits, the invalid operation exception is raised. If x
45 43 * is not an integer, the inexact exception is raised.
46 44 */
47 45
48 46 #include "libm.h"
49 47
50 48 long long
51 49 llrint(double x) {
52 50 /*
53 51 * Note: The following code works on x86 (in the default rounding
54 52 * precision mode), but one should just use the fistpll instruction
55 53 * instead.
56 54 */
57 55 union {
58 56 unsigned i[2];
59 57 double d;
60 58 } xx, yy;
61 59 unsigned hx;
62 60
63 61 xx.d = x;
64 62 hx = xx.i[HIWORD] & ~0x80000000;
65 63
66 64 if (hx < 0x43300000) { /* |x| < 2^52 */
67 65 /* add and subtract a power of two to round x to an integer */
68 66 #if defined(__sparc) || defined(__amd64)
69 67 yy.i[HIWORD] = (xx.i[HIWORD] & 0x80000000) | 0x43300000;
70 68 #elif defined(__i386) /* !defined(__amd64) */
71 69 yy.i[HIWORD] = (xx.i[HIWORD] & 0x80000000) | 0x43e00000;
72 70 #else
73 71 #error Unknown architecture
74 72 #endif
75 73 yy.i[LOWORD] = 0;
76 74 x = (x + yy.d) - yy.d;
77 75 }
78 76
79 77 /* now x is nan, inf, or integral */
80 78 return ((long long) x);
81 79 }
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