xref: /netbsd/tests/usr.bin/cc/t_ubsan_int_sub_overflow.sh (revision 478d831a)

#	$NetBSD: t_ubsan_int_sub_overflow.sh,v 1.5 2019/02/09 00:13:19 mrg Exp $
#
# Copyright (c) 2018, 2019 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Harry Pantazis.
#
# 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
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

UBSAN_CODE='
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
int help(int);
#ifndef PIC_MAIN
int help(int count) {volatile int l = INT_MIN; l-= count; return l;}
#endif
#ifndef PIC_FOO
int main(int argc, char **argv) {volatile int k = help(argc); return k;}
#endif
'

ubsan_test_case int_sub_overflow "int subtraction overflows" \
	"signed integer overflow"

atf_init_test_cases()
{
	ubsan_add_test_cases int_sub_overflow
}