1 /* Copyright (C) 2014-2024 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
25 #include <sys/prctl.h>
27 #if __mips_fpr != 0 || _MIPS_SPFPSET != 16
28 # error This test requires -mfpxx -mno-odd-spreg
31 /* This test verifies that mode changes do not clobber register state
34 static volatile int finished;
39 PR_FP_MODE_FR | PR_FP_MODE_FRE,
42 PR_FP_MODE_FR | PR_FP_MODE_FRE
46 thread_function (void * arg __attribute__ ((unused)))
49 volatile float f = 0.0;
50 volatile double d = 0.0;
54 if ((float) i != f || (double) i != d)
56 printf ("unexpected value: i(%d) f(%f) d(%f)\n", i, f, d);
77 int count = sysconf (_SC_NPROCESSORS_ONLN);
86 for (i = 0; i < count; ++i)
87 if (pthread_create (&th[i], NULL, thread_function, 0) != 0)
89 printf ("creation of thread %d failed\n", i);
93 for (i = 0 ; i < 1000000 ; i++)
95 if (prctl (PR_SET_FP_MODE, mode[i % 6]) != 0
98 printf ("prctl PR_SET_FP_MODE failed: %m\n");
105 for (i = 0; i < count; ++i)
108 if (pthread_join (th[i], &v) != 0)
110 printf ("join of thread %d failed\n", i);
115 printf ("join %d successful, but child failed\n", i);
119 printf ("join %d successful\n", i);
125 #define TEST_FUNCTION do_test ()
126 #include "../../test-skeleton.c"