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      1 /*-
      2  * Copyright (c) 2012 The NetBSD Foundation, Inc.
      3  * All rights reserved.
      4  *
      5  * This code is derived from software contributed to The NetBSD Foundation
      6  * by Matt Thomas of 3am Software Foundry.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     27  * POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include <sys/cdefs.h>
     31 
     32 __RCSID("$NetBSD: __aeabi_ldiv0.c,v 1.3 2014/01/29 22:29:43 joerg Exp $");
     33 
     34 #if defined(_KERNEL) || defined(_STANDALONE)
     35 #include <sys/systm.h>
     36 #else
     37 #include <string.h>
     38 #include <unistd.h>
     39 #include <sys/types.h>
     40 #include <sys/signal.h>
     41 #include <sys/siginfo.h>
     42 #endif
     43 
     44 #include <arm/aeabi.h>
     45 
     46 long long
     47 __aeabi_ldiv0(long long result)
     48 {
     49 #if defined(_KERNEL) || defined(_STANDALONE)
     50 	panic("divide by 0");
     51 #else
     52 	siginfo_t info;
     53 
     54 	memset(&info, 0, sizeof info);
     55 	info.si_signo = SIGFPE;
     56 	info.si_pid = getpid();
     57 	info.si_uid = geteuid();
     58 	info.si_code = FPE_INTDIV;
     59 	sigqueueinfo(getpid(), &info);
     60 #endif
     61 	return result;
     62 }
     63