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/* BZ 12420 */
#include <errno.h>
#include <fenv.h>
#include <stdio.h>
#include <stdlib.h>
#include <ucontext.h>
#include <libc-diag.h>
static int
do_test (void)
{
if (FE_ALL_EXCEPT == 0)
{
printf("Skipping test; no support for FP exceptions.\n");
return 0;
}
int except_mask = 0;
#ifdef FE_DIVBYZERO
except_mask |= FE_DIVBYZERO;
#endif
#ifdef FE_INVALID
except_mask |= FE_INVALID;
#endif
#ifdef FE_OVERFLOW
except_mask |= FE_OVERFLOW;
#endif
#ifdef FE_UNDERFLOW
except_mask |= FE_UNDERFLOW;
#endif
int status = feenableexcept (except_mask);
except_mask = fegetexcept ();
if (except_mask == -1)
{
printf("\nBefore getcontext(): fegetexcept returned: %d\n",
except_mask);
return 1;
}
ucontext_t ctx;
status = getcontext(&ctx);
if (status)
{
printf("\ngetcontext failed, errno: %d.\n", errno);
return 1;
}
printf ("\nDone with getcontext()!\n");
fflush (NULL);
/* On nios2 and tilepro, GCC 5 warns that except_mask may be used
uninitialized. Because it is always initialized and nothing in
this test ever calls setcontext (a setcontext call could result
in local variables being clobbered on the second return from
getcontext), in fact an uninitialized use is not possible. */
DIAG_PUSH_NEEDS_COMMENT;
DIAG_IGNORE_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
int mask = fegetexcept ();
if (mask != except_mask)
{
printf("\nAfter getcontext(): fegetexcept returned: %d, expected: %d.\n",
mask, except_mask);
return 1;
}
printf("\nAt end fegetexcept() returned %d, expected: %d.\n",
mask, except_mask);
DIAG_POP_NEEDS_COMMENT;
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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