1 | /* Test floating-point environment is thread-local. |
2 | Copyright (C) 2013-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <fenv.h> |
20 | #include <pthread.h> |
21 | #include <stdio.h> |
22 | #include <stdint.h> |
23 | |
24 | #define TEST_ONE_RM(RM) \ |
25 | do \ |
26 | { \ |
27 | if (fesetround (RM) == 0) \ |
28 | { \ |
29 | rm = fegetround (); \ |
30 | if (rm != RM) \ |
31 | { \ |
32 | printf ("expected " #RM ", got %d\n", rm); \ |
33 | ret = 1; \ |
34 | } \ |
35 | } \ |
36 | } \ |
37 | while (0) |
38 | |
39 | static void * |
40 | test_round (void *arg) |
41 | { |
42 | intptr_t ret = 0; |
43 | for (int i = 0; i < 10000; i++) |
44 | { |
45 | int rm; |
46 | #ifdef FE_DOWNWARD |
47 | TEST_ONE_RM (FE_DOWNWARD); |
48 | #endif |
49 | #ifdef FE_TONEAREST |
50 | TEST_ONE_RM (FE_TONEAREST); |
51 | #endif |
52 | #ifdef FE_TOWARDZERO |
53 | TEST_ONE_RM (FE_TOWARDZERO); |
54 | #endif |
55 | #ifdef FE_UPWARD |
56 | TEST_ONE_RM (FE_UPWARD); |
57 | #endif |
58 | } |
59 | return (void *) ret; |
60 | } |
61 | |
62 | #define TEST_ONE_RAISE(EX) \ |
63 | do \ |
64 | { \ |
65 | if (feraiseexcept (EX) == 0) \ |
66 | if (fetestexcept (EX) != EX) \ |
67 | { \ |
68 | printf (#EX " not raised\n"); \ |
69 | ret = 1; \ |
70 | } \ |
71 | if (feclearexcept (FE_ALL_EXCEPT) == 0) \ |
72 | if (fetestexcept (FE_ALL_EXCEPT) != 0) \ |
73 | { \ |
74 | printf ("exceptions not all cleared\n"); \ |
75 | ret = 1; \ |
76 | } \ |
77 | } \ |
78 | while (0) |
79 | |
80 | static void * |
81 | test_raise (void *arg) |
82 | { |
83 | intptr_t ret = 0; |
84 | for (int i = 0; i < 10000; i++) |
85 | { |
86 | #ifdef FE_DIVBYZERO |
87 | TEST_ONE_RAISE (FE_DIVBYZERO); |
88 | #endif |
89 | #ifdef FE_INEXACT |
90 | TEST_ONE_RAISE (FE_INEXACT); |
91 | #endif |
92 | #ifdef FE_INVALID |
93 | TEST_ONE_RAISE (FE_INVALID); |
94 | #endif |
95 | #ifdef FE_OVERFLOW |
96 | TEST_ONE_RAISE (FE_OVERFLOW); |
97 | #endif |
98 | #ifdef UNDERFLOW |
99 | TEST_ONE_RAISE (FE_UNDERFLOW); |
100 | #endif |
101 | } |
102 | return (void *) ret; |
103 | } |
104 | |
105 | #define TEST_ONE_ENABLE(EX) \ |
106 | do \ |
107 | { \ |
108 | if (feenableexcept (EX) != -1) \ |
109 | if (fegetexcept () != EX) \ |
110 | { \ |
111 | printf (#EX " not enabled\n"); \ |
112 | ret = 1; \ |
113 | } \ |
114 | if (fedisableexcept (EX) != -1) \ |
115 | if (fegetexcept () != 0) \ |
116 | { \ |
117 | printf ("exceptions not all disabled\n"); \ |
118 | ret = 1; \ |
119 | } \ |
120 | } \ |
121 | while (0) |
122 | |
123 | static void * |
124 | test_enable (void *arg) |
125 | { |
126 | intptr_t ret = 0; |
127 | for (int i = 0; i < 10000; i++) |
128 | { |
129 | #ifdef FE_DIVBYZERO |
130 | TEST_ONE_ENABLE (FE_DIVBYZERO); |
131 | #endif |
132 | #ifdef FE_INEXACT |
133 | TEST_ONE_ENABLE (FE_INEXACT); |
134 | #endif |
135 | #ifdef FE_INVALID |
136 | TEST_ONE_ENABLE (FE_INVALID); |
137 | #endif |
138 | #ifdef FE_OVERFLOW |
139 | TEST_ONE_ENABLE (FE_OVERFLOW); |
140 | #endif |
141 | #ifdef UNDERFLOW |
142 | TEST_ONE_ENABLE (FE_UNDERFLOW); |
143 | #endif |
144 | } |
145 | return (void *) ret; |
146 | } |
147 | |
148 | static int |
149 | do_test (void) |
150 | { |
151 | int ret = 0; |
152 | void *vret; |
153 | pthread_t thread_id; |
154 | int pret; |
155 | |
156 | pret = pthread_create (newthread: &thread_id, NULL, start_routine: test_round, NULL); |
157 | if (pret != 0) |
158 | { |
159 | printf (format: "pthread_create failed: %d\n" , pret); |
160 | return 1; |
161 | } |
162 | vret = test_round (NULL); |
163 | ret |= (intptr_t) vret; |
164 | pret = pthread_join (th: thread_id, thread_return: &vret); |
165 | if (pret != 0) |
166 | { |
167 | printf (format: "pthread_join failed: %d\n" , pret); |
168 | return 1; |
169 | } |
170 | ret |= (intptr_t) vret; |
171 | |
172 | pret = pthread_create (newthread: &thread_id, NULL, start_routine: test_raise, NULL); |
173 | if (pret != 0) |
174 | { |
175 | printf (format: "pthread_create failed: %d\n" , pret); |
176 | return 1; |
177 | } |
178 | vret = test_raise (NULL); |
179 | ret |= (intptr_t) vret; |
180 | pret = pthread_join (th: thread_id, thread_return: &vret); |
181 | if (pret != 0) |
182 | { |
183 | printf (format: "pthread_join failed: %d\n" , pret); |
184 | return 1; |
185 | } |
186 | ret |= (intptr_t) vret; |
187 | |
188 | pret = pthread_create (newthread: &thread_id, NULL, start_routine: test_enable, NULL); |
189 | if (pret != 0) |
190 | { |
191 | printf (format: "pthread_create failed: %d\n" , pret); |
192 | return 1; |
193 | } |
194 | vret = test_enable (NULL); |
195 | ret |= (intptr_t) vret; |
196 | pret = pthread_join (th: thread_id, thread_return: &vret); |
197 | if (pret != 0) |
198 | { |
199 | printf (format: "pthread_join failed: %d\n" , pret); |
200 | return 1; |
201 | } |
202 | ret |= (intptr_t) vret; |
203 | |
204 | return ret; |
205 | } |
206 | |
207 | #define TEST_FUNCTION do_test () |
208 | #include "../test-skeleton.c" |
209 | |