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e15f7de60c
Quite a few tests include libc-internal.h just for the DIAG_* macros. Split those macros to their own file, which can be included safely in _ISOMAC mode. I also moved ignore_value, since it seems logically related, even though I didn't notice any tests needing it. Also add -Wnonnull suppressions to two tests that _should_ have them, but the error is masked when compiling against internal headers. * include/libc-diag.h: New file. Define ignore_value, DIAG_PUSH_NEEDS_COMMENT, DIAG_POP_NEEDS_COMMENT, DIAG_IGNORE_NEEDS_COMMENT, and DIAG_IGNORE_Os_NEEDS_COMMENT here. * include/libc-internal.h: Definitions of above macros moved from here. Include libc-diag.h. Add copyright notice. * malloc/tst-malloc.c, malloc/tst-memcheck.c, malloc/tst-realloc.c * misc/tst-error1.c, posix/tst-dir.c, stdio-common/bug21.c * stdio-common/scanf14.c, stdio-common/scanf4.c, stdio-common/scanf7.c * stdio-common/test-vfprintf.c, stdio-common/tst-printf.c * stdio-common/tst-printfsz.c, stdio-common/tst-sprintf.c * stdio-common/tst-unlockedio.c, stdio-common/tstdiomisc.c * stdlib/bug-getcontext.c, string/tester.c, string/tst-endian.c * time/tst-strptime2.c, wcsmbs/tst-wcstof.c: Include libc-diag.h instead of libc-internal.h. * stdlib/tst-environ.c: Include libc-diag.h. Suppress -Wnonnull for call to unsetenv (NULL). * nptl/tst-mutex1.c: Include libc-diag.h. Suppress -Wnonnull for call to pthread_mutexattr_destroy (NULL).
77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
/* BZ 12420 */
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#include <errno.h>
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#include <fenv.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <ucontext.h>
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#include <libc-diag.h>
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static int
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do_test (void)
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{
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if (FE_ALL_EXCEPT == 0)
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{
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printf("Skipping test; no support for FP exceptions.\n");
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return 0;
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}
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int except_mask = 0;
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#ifdef FE_DIVBYZERO
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except_mask |= FE_DIVBYZERO;
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#endif
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#ifdef FE_INVALID
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except_mask |= FE_INVALID;
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#endif
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#ifdef FE_OVERFLOW
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except_mask |= FE_OVERFLOW;
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#endif
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#ifdef FE_UNDERFLOW
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except_mask |= FE_UNDERFLOW;
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#endif
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int status = feenableexcept (except_mask);
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except_mask = fegetexcept ();
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if (except_mask == -1)
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{
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printf("\nBefore getcontext(): fegetexcept returned: %d\n",
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except_mask);
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return 1;
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}
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ucontext_t ctx;
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status = getcontext(&ctx);
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if (status)
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{
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printf("\ngetcontext failed, errno: %d.\n", errno);
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return 1;
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}
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printf ("\nDone with getcontext()!\n");
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fflush (NULL);
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/* On nios2 and tilepro, GCC 5 warns that except_mask may be used
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uninitialized. Because it is always initialized and nothing in
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this test ever calls setcontext (a setcontext call could result
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in local variables being clobbered on the second return from
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getcontext), in fact an uninitialized use is not possible. */
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DIAG_PUSH_NEEDS_COMMENT;
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DIAG_IGNORE_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
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int mask = fegetexcept ();
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if (mask != except_mask)
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{
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printf("\nAfter getcontext(): fegetexcept returned: %d, expected: %d.\n",
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mask, except_mask);
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return 1;
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}
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printf("\nAt end fegetexcept() returned %d, expected: %d.\n",
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mask, except_mask);
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DIAG_POP_NEEDS_COMMENT;
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return 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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