minix/tests/lib/libc/gen/t_fpsetmask.c
Lionel Sambuc 11be35a165 Importing NetBSD "Kyua" test framework
To do so, a few dependencies have been imported:

 * external/bsd/lutok
 * external/mit/lua
 * external/public-domain/sqlite
 * external/public-domain/xz

The Kyua framework is the new generation of ATF (Automated Test
Framework), it is composed of:

 * external/bsd/atf
 * external/bsd/kyua-atf-compat
 * external/bsd/kyua-cli
 * external/bsd/kyua-tester
 * tests

Kyua/ATF being written in C++, it depends on libstdc++ which is
provided by GCC. As this is not part of the sources, Kyua is only
compiled when the native GCC utils are installed.

To install Kyua do the following:

 * In a cross-build enviromnent, add the following to the build.sh
   commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes

WARNING:
  At this point the import is still experimental, and not supported
  on native builds (a.k.a make build).

Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada
2013-07-23 20:43:41 +02:00

353 lines
7.2 KiB
C

/* $NetBSD: t_fpsetmask.c,v 1.12 2013/04/14 16:03:06 martin Exp $ */
/*-
* Copyright (c) 1995 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <atf-c.h>
#include <atf-c/config.h>
#include <stdio.h>
#include <signal.h>
#include <float.h>
#include <setjmp.h>
#include <stdlib.h>
#include <string.h>
#include "isqemu.h"
#ifndef _FLOAT_IEEE754
ATF_TC(no_test);
ATF_TC_HEAD(no_test, tc)
{
atf_tc_set_md_var(tc, "descr", "Dummy test case");
}
ATF_TC_BODY(no_test, tc)
{
atf_tc_skip("Test not available on this architecture.");
}
#else /* defined(_FLOAT_IEEE754) */
#include <ieeefp.h>
const char *skip_mesg;
const char *skip_arch;
void sigfpe(int, siginfo_t *, void *);
volatile sig_atomic_t signal_caught;
volatile int sicode;
static volatile const float f_one = 1.0;
static volatile const float f_zero = 0.0;
static volatile const double d_one = 1.0;
static volatile const double d_zero = 0.0;
static volatile const long double ld_one = 1.0;
static volatile const long double ld_zero = 0.0;
static volatile const float f_huge = FLT_MAX;
static volatile const float f_tiny = FLT_MIN;
static volatile const double d_huge = DBL_MAX;
static volatile const double d_tiny = DBL_MIN;
static volatile const long double ld_huge = LDBL_MAX;
static volatile const long double ld_tiny = LDBL_MIN;
static volatile float f_x;
static volatile double d_x;
static volatile long double ld_x;
/* trip divide by zero */
static void
f_dz(void)
{
f_x = f_one / f_zero;
}
static void
d_dz(void)
{
d_x = d_one / d_zero;
}
static void
ld_dz(void)
{
ld_x = ld_one / ld_zero;
}
/* trip invalid operation */
static void
d_inv(void)
{
d_x = d_zero / d_zero;
}
static void
ld_inv(void)
{
ld_x = ld_zero / ld_zero;
}
static void
f_inv(void)
{
f_x = f_zero / f_zero;
}
/* trip overflow */
static void
f_ofl(void)
{
f_x = f_huge * f_huge;
}
static void
d_ofl(void)
{
d_x = d_huge * d_huge;
}
static void
ld_ofl(void)
{
ld_x = ld_huge * ld_huge;
}
/* trip underflow */
static void
f_ufl(void)
{
f_x = f_tiny * f_tiny;
}
static void
d_ufl(void)
{
d_x = d_tiny * d_tiny;
}
static void
ld_ufl(void)
{
ld_x = ld_tiny * ld_tiny;
}
struct ops {
void (*op)(void);
fp_except mask;
int sicode;
};
static const struct ops float_ops[] = {
{ f_dz, FP_X_DZ, FPE_FLTDIV },
{ f_inv, FP_X_INV, FPE_FLTINV },
{ f_ofl, FP_X_OFL, FPE_FLTOVF },
{ f_ufl, FP_X_UFL, FPE_FLTUND },
{ NULL, 0, 0 }
};
static const struct ops double_ops[] = {
{ d_dz, FP_X_DZ, FPE_FLTDIV },
{ d_inv, FP_X_INV, FPE_FLTINV },
{ d_ofl, FP_X_OFL, FPE_FLTOVF },
{ d_ufl, FP_X_UFL, FPE_FLTUND },
{ NULL, 0, 0 }
};
static const struct ops long_double_ops[] = {
{ ld_dz, FP_X_DZ, FPE_FLTDIV },
{ ld_inv, FP_X_INV, FPE_FLTINV },
{ ld_ofl, FP_X_OFL, FPE_FLTOVF },
{ ld_ufl, FP_X_UFL, FPE_FLTUND },
{ NULL, 0, 0 }
};
static sigjmp_buf b;
static void
fpsetmask_masked(const struct ops *test_ops)
{
struct sigaction sa;
fp_except ex1, ex2;
const struct ops *t;
/* mask all exceptions, clear history */
fpsetmask(0);
fpsetsticky(0);
/* set up signal handler */
sa.sa_sigaction = sigfpe;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_SIGINFO;
sigaction(SIGFPE, &sa, 0);
signal_caught = 0;
/*
* exceptions masked, check whether "sticky" bits are set correctly
*/
for (t = test_ops; t->op != NULL; t++) {
(*t->op)();
ex1 = fpgetsticky();
ATF_CHECK_EQ(ex1 & t->mask, t->mask);
ATF_CHECK_EQ(signal_caught, 0);
/* check correct fpsetsticky() behaviour */
ex2 = fpsetsticky(0);
ATF_CHECK_EQ(fpgetsticky(), 0);
ATF_CHECK_EQ(ex1, ex2);
}
}
/* force delayed exceptions to be delivered */
#define BARRIER() fpsetmask(0); f_x = f_one * f_one
static void
fpsetmask_unmasked(const struct ops *test_ops)
{
struct sigaction sa;
int r;
const struct ops *volatile t;
/* mask all exceptions, clear history */
fpsetmask(0);
fpsetsticky(0);
/* set up signal handler */
sa.sa_sigaction = sigfpe;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_SIGINFO;
sigaction(SIGFPE, &sa, 0);
signal_caught = 0;
/*
* exception unmasked, check SIGFPE delivery and correct siginfo
*/
for (t = test_ops; t->op != NULL; t++) {
fpsetmask(t->mask);
r = sigsetjmp(b, 1);
if (!r) {
(*t->op)();
BARRIER();
}
ATF_CHECK_EQ(signal_caught, 1);
ATF_CHECK_EQ(sicode, t->sicode);
signal_caught = 0;
}
}
void
sigfpe(int s, siginfo_t *si, void *c)
{
signal_caught = 1;
sicode = si->si_code;
siglongjmp(b, 1);
}
#define TEST(m, t) \
ATF_TC(m##_##t); \
\
ATF_TC_HEAD(m##_##t, tc) \
{ \
\
atf_tc_set_md_var(tc, "descr", \
"Test " ___STRING(m) " exceptions for " \
___STRING(t) "values"); \
} \
\
ATF_TC_BODY(m##_##t, tc) \
{ \
if (strcmp(atf_config_get("atf_arch"), "macppc") == 0) \
atf_tc_expect_fail("PR port-macppc/46319"); \
\
if (isQEMU()) \
atf_tc_expect_fail("PR misc/44767"); \
\
m(t##_ops); \
}
TEST(fpsetmask_masked, float)
TEST(fpsetmask_masked, double)
TEST(fpsetmask_masked, long_double)
TEST(fpsetmask_unmasked, float)
TEST(fpsetmask_unmasked, double)
TEST(fpsetmask_unmasked, long_double)
ATF_TC(fpsetmask_basic);
ATF_TC_HEAD(fpsetmask_basic, tc)
{
atf_tc_set_md_var(tc, "descr", "A basic test of fpsetmask(3)");
}
ATF_TC_BODY(fpsetmask_basic, tc)
{
size_t i;
fp_except_t msk, lst[] = { FP_X_INV, FP_X_DZ, FP_X_OFL, FP_X_UFL };
msk = fpgetmask();
for (i = 0; i < __arraycount(lst); i++) {
fpsetmask(msk | lst[i]);
ATF_CHECK((fpgetmask() & lst[i]) != 0);
fpsetmask(msk & lst[i]);
ATF_CHECK((fpgetmask() & lst[i]) == 0);
}
}
#endif /* defined(_FLOAT_IEEE754) */
ATF_TP_ADD_TCS(tp)
{
#ifndef _FLOAT_IEEE754
ATF_TP_ADD_TC(tp, no_test);
#else
ATF_TP_ADD_TC(tp, fpsetmask_basic);
ATF_TP_ADD_TC(tp, fpsetmask_masked_float);
ATF_TP_ADD_TC(tp, fpsetmask_masked_double);
ATF_TP_ADD_TC(tp, fpsetmask_masked_long_double);
ATF_TP_ADD_TC(tp, fpsetmask_unmasked_float);
ATF_TP_ADD_TC(tp, fpsetmask_unmasked_double);
ATF_TP_ADD_TC(tp, fpsetmask_unmasked_long_double);
#endif
return atf_no_error();
}