1 /* $NetBSD: t_fpsetmask.c,v 1.14 2014/11/04 00:20:19 justin Exp $ */
4 * Copyright (c) 1995 The NetBSD Foundation, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
29 #include <sys/param.h>
42 #ifndef _FLOAT_IEEE754
45 ATF_TC_HEAD(no_test, tc)
48 atf_tc_set_md_var(tc, "descr", "Dummy test case");
51 ATF_TC_BODY(no_test, tc)
54 atf_tc_skip("Test not available on this architecture.");
57 #else /* defined(_FLOAT_IEEE754) */
61 const char *skip_mesg;
62 const char *skip_arch;
64 void sigfpe(int, siginfo_t *, void *);
66 volatile sig_atomic_t signal_caught;
69 static volatile const float f_one = 1.0;
70 static volatile const float f_zero = 0.0;
71 static volatile const double d_one = 1.0;
72 static volatile const double d_zero = 0.0;
73 static volatile const long double ld_one = 1.0;
74 static volatile const long double ld_zero = 0.0;
76 static volatile const float f_huge = FLT_MAX;
77 static volatile const float f_tiny = FLT_MIN;
78 static volatile const double d_huge = DBL_MAX;
79 static volatile const double d_tiny = DBL_MIN;
80 static volatile const long double ld_huge = LDBL_MAX;
81 static volatile const long double ld_tiny = LDBL_MIN;
83 static volatile float f_x;
84 static volatile double d_x;
85 static volatile long double ld_x;
87 /* trip divide by zero */
106 ld_x = ld_one / ld_zero;
109 /* trip invalid operation */
114 d_x = d_zero / d_zero;
121 ld_x = ld_zero / ld_zero;
128 f_x = f_zero / f_zero;
136 f_x = f_huge * f_huge;
143 d_x = d_huge * d_huge;
150 ld_x = ld_huge * ld_huge;
158 f_x = f_tiny * f_tiny;
165 d_x = d_tiny * d_tiny;
172 ld_x = ld_tiny * ld_tiny;
181 static const struct ops float_ops[] = {
182 { f_dz, FP_X_DZ, FPE_FLTDIV },
183 { f_inv, FP_X_INV, FPE_FLTINV },
184 { f_ofl, FP_X_OFL, FPE_FLTOVF },
185 { f_ufl, FP_X_UFL, FPE_FLTUND },
189 static const struct ops double_ops[] = {
190 { d_dz, FP_X_DZ, FPE_FLTDIV },
191 { d_inv, FP_X_INV, FPE_FLTINV },
192 { d_ofl, FP_X_OFL, FPE_FLTOVF },
193 { d_ufl, FP_X_UFL, FPE_FLTUND },
197 static const struct ops long_double_ops[] = {
198 { ld_dz, FP_X_DZ, FPE_FLTDIV },
199 { ld_inv, FP_X_INV, FPE_FLTINV },
200 { ld_ofl, FP_X_OFL, FPE_FLTOVF },
201 { ld_ufl, FP_X_UFL, FPE_FLTUND },
208 fpsetmask_masked(const struct ops *test_ops)
214 /* mask all exceptions, clear history */
218 /* set up signal handler */
219 sa.sa_sigaction = sigfpe;
220 sigemptyset(&sa.sa_mask);
221 sa.sa_flags = SA_SIGINFO;
222 sigaction(SIGFPE, &sa, 0);
226 * exceptions masked, check whether "sticky" bits are set correctly
228 for (t = test_ops; t->op != NULL; t++) {
231 ATF_CHECK_EQ(ex1 & t->mask, t->mask);
232 ATF_CHECK_EQ(signal_caught, 0);
234 /* check correct fpsetsticky() behaviour */
235 ex2 = fpsetsticky(0);
236 ATF_CHECK_EQ(fpgetsticky(), 0);
237 ATF_CHECK_EQ(ex1, ex2);
241 /* force delayed exceptions to be delivered */
242 #define BARRIER() fpsetmask(0); f_x = f_one * f_one
245 fpsetmask_unmasked(const struct ops *test_ops)
249 const struct ops *volatile t;
251 /* mask all exceptions, clear history */
255 /* set up signal handler */
256 sa.sa_sigaction = sigfpe;
257 sigemptyset(&sa.sa_mask);
258 sa.sa_flags = SA_SIGINFO;
259 sigaction(SIGFPE, &sa, 0);
263 * exception unmasked, check SIGFPE delivery and correct siginfo
265 for (t = test_ops; t->op != NULL; t++) {
272 ATF_CHECK_EQ(signal_caught, 1);
273 ATF_CHECK_EQ(sicode, t->sicode);
279 sigfpe(int s, siginfo_t *si, void *c)
282 sicode = si->si_code;
289 ATF_TC_HEAD(m##_##t, tc) \
292 atf_tc_set_md_var(tc, "descr", \
293 "Test " ___STRING(m) " exceptions for " \
294 ___STRING(t) "values"); \
297 ATF_TC_BODY(m##_##t, tc) \
299 if (strcmp(MACHINE, "macppc") == 0) \
300 atf_tc_expect_fail("PR port-macppc/46319"); \
303 atf_tc_expect_fail("PR misc/44767"); \
308 TEST(fpsetmask_masked, float)
309 TEST(fpsetmask_masked, double)
310 TEST(fpsetmask_masked, long_double)
311 TEST(fpsetmask_unmasked, float)
312 TEST(fpsetmask_unmasked, double)
313 TEST(fpsetmask_unmasked, long_double)
315 ATF_TC(fpsetmask_basic);
316 ATF_TC_HEAD(fpsetmask_basic, tc)
318 atf_tc_set_md_var(tc, "descr", "A basic test of fpsetmask(3)");
321 ATF_TC_BODY(fpsetmask_basic, tc)
324 fp_except_t msk, lst[] = { FP_X_INV, FP_X_DZ, FP_X_OFL, FP_X_UFL };
327 for (i = 0; i < __arraycount(lst); i++) {
328 fpsetmask(msk | lst[i]);
329 ATF_CHECK((fpgetmask() & lst[i]) != 0);
330 fpsetmask(msk & lst[i]);
331 ATF_CHECK((fpgetmask() & lst[i]) == 0);
336 #endif /* defined(_FLOAT_IEEE754) */
341 #ifndef _FLOAT_IEEE754
342 ATF_TP_ADD_TC(tp, no_test);
344 ATF_TP_ADD_TC(tp, fpsetmask_basic);
345 ATF_TP_ADD_TC(tp, fpsetmask_masked_float);
346 ATF_TP_ADD_TC(tp, fpsetmask_masked_double);
347 ATF_TP_ADD_TC(tp, fpsetmask_masked_long_double);
348 ATF_TP_ADD_TC(tp, fpsetmask_unmasked_float);
349 ATF_TP_ADD_TC(tp, fpsetmask_unmasked_double);
350 ATF_TP_ADD_TC(tp, fpsetmask_unmasked_long_double);
353 return atf_no_error();