minus the vendor Makefiles Provide directions for how to bootstrap the vendor sources in FREEBSD-upgrade MFC after 2 weeks Discussed with: rpaulo Sponsored by: EMC / Isilon Storage Division
149 lines
4.0 KiB
C
149 lines
4.0 KiB
C
/* $NetBSD: t_fpu.c,v 1.2 2013/01/27 14:47:37 mbalmer Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2008 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 <sys/cdefs.h>
|
|
__COPYRIGHT("@(#) Copyright (c) 2008\
|
|
The NetBSD Foundation, inc. All rights reserved.");
|
|
__RCSID("$NetBSD: t_fpu.c,v 1.2 2013/01/27 14:47:37 mbalmer Exp $");
|
|
|
|
/*
|
|
* This is adapted from part of csw/cstest of the MPD implementation by
|
|
* the University of Arizona CS department (http://www.cs.arizona.edu/sr/)
|
|
* which is in the public domain:
|
|
*
|
|
* "The MPD system is in the public domain and you may use and distribute it
|
|
* as you wish. We ask that you retain credits referencing the University
|
|
* of Arizona and that you identify any changes you make.
|
|
*
|
|
* We can't provide a warranty with MPD; it's up to you to determine its
|
|
* suitability and reliability for your needs. We would like to hear of
|
|
* any problems you encounter but we cannot promise a timely correction."
|
|
*
|
|
* It was changed to use pthread_create() and sched_yield() instead of
|
|
* the internal MPD context switching primitives by Ignatios Souvatzis
|
|
* <is@netbsd.org>.
|
|
*/
|
|
|
|
#include <math.h>
|
|
#include <pthread.h>
|
|
#include <sched.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#include <atf-c.h>
|
|
|
|
#include "h_common.h"
|
|
|
|
#define N_RECURSE 10
|
|
|
|
static void recurse(void);
|
|
|
|
int recursion_depth = 0;
|
|
pthread_mutex_t recursion_depth_lock;
|
|
|
|
static void *
|
|
stir(void *p)
|
|
{
|
|
double *q = (double *)p;
|
|
double x = *q++;
|
|
double y = *q++;
|
|
double z = *q++;
|
|
|
|
for (;;) {
|
|
x = sin ((y = cos (x + y + .4)) - (z = cos (x + z + .6)));
|
|
PTHREAD_REQUIRE(sched_yield());
|
|
}
|
|
}
|
|
|
|
static double
|
|
mul3(double x, double y, double z)
|
|
{
|
|
PTHREAD_REQUIRE(sched_yield());
|
|
|
|
return x * y * z;
|
|
}
|
|
|
|
static void *
|
|
bar(void *p)
|
|
{
|
|
double d;
|
|
int rc;
|
|
|
|
d = mul3(mul3(2., 3., 5.), mul3(7., 11., 13.), mul3(17., 19., 23.));
|
|
ATF_REQUIRE_EQ(d, 223092870.);
|
|
|
|
PTHREAD_REQUIRE(pthread_mutex_lock(&recursion_depth_lock));
|
|
rc = recursion_depth++;
|
|
PTHREAD_REQUIRE(pthread_mutex_unlock(&recursion_depth_lock));
|
|
|
|
if (rc < N_RECURSE)
|
|
recurse();
|
|
else
|
|
atf_tc_pass();
|
|
|
|
/* NOTREACHED */
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
recurse(void) {
|
|
pthread_t s2;
|
|
pthread_create(&s2, 0, bar, 0);
|
|
sleep(20); /* XXX must be long enough for our slowest machine */
|
|
}
|
|
|
|
ATF_TC(fpu);
|
|
ATF_TC_HEAD(fpu, tc)
|
|
{
|
|
atf_tc_set_md_var(tc, "descr",
|
|
"Checks that thread context switches will leave the "
|
|
"floating point computations unharmed");
|
|
}
|
|
ATF_TC_BODY(fpu, tc)
|
|
{
|
|
double stirseed[] = { 1.7, 3.2, 2.4 };
|
|
pthread_t s5;
|
|
|
|
printf("Testing threaded floating point computations...\n");
|
|
|
|
PTHREAD_REQUIRE(pthread_mutex_init(&recursion_depth_lock, 0));
|
|
|
|
pthread_create(&s5, 0, stir, stirseed);
|
|
recurse();
|
|
|
|
atf_tc_fail("exiting from main");
|
|
}
|
|
|
|
ATF_TP_ADD_TCS(tp)
|
|
{
|
|
ATF_TP_ADD_TC(tp, fpu);
|
|
|
|
return atf_no_error();
|
|
}
|