t_ubsan_int_divzero.sh revision 1.2
1# Copyright (c) 2018 The NetBSD Foundation, Inc. 2# All rights reserved. 3# 4# This code is derived from software contributed to The NetBSD Foundation 5# by Harry Pantazis. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26# POSSIBILITY OF SUCH DAMAGE. 27# 28 29test_target() 30{ 31 SUPPORT='n' 32 if ! echo __GNUC__ | cc -E - | grep -q __GNUC__; then 33 SUPPORT='y' 34 fi 35 36 if ! echo __clang__ | cc -E - | grep -q __clang__; then 37 SUPPORT='y' 38 fi 39} 40 41atf_test_case int_divzero 42int_divzero_head() { 43 atf_set "descr" "Test Undefined Behavior for int division with zero" 44 atf_set "require.progs" "cc" 45} 46 47atf_test_case int_divzero_profile 48int_divzero_profile_head() { 49 atf_set "descr" "Test Undefined Behavior for int division with zero with profiling option" 50 atf_set "require.progs" "cc" 51} 52atf_test_case int_divzero_pic 53int_divzero_pic_head() { 54 atf_set "descr" "Test Undefined Behavior for int division with zero with position independent code (PIC) flag" 55 atf_set "require.progs" "cc" 56} 57atf_test_case int_divzero_pie 58int_divzero_pie_head() { 59 atf_set "descr" "Test Undefined Behavior for int division with zero with position independent execution (PIE) flag" 60 atf_set "require.progs" "cc" 61} 62atf_test_case int_divzero32 63int_divzero32_head() { 64 atf_set "descr" "Test Undefined Behavior for int division with zero in NetBSD_32 emulation" 65 atf_set "require.progs" "cc file diff cat" 66} 67 68 69int_divzero_body(){ 70 cat > test.c << EOF 71#include <stdio.h> 72#include <stdlib.h> 73int main(int argc, char **argv) {volatile int l = argc; volatile int k = 0; l/= k; return l;} 74EOF 75 76 cc -fsanitize=integer-divide-by-zero -o test test.c 77 atf_check -s signal:8 -e match:"division by zero" ./test 78} 79 80int_divzero_profile_body(){ 81 cat > test.c << EOF 82#include <stdio.h> 83#include <stdlib.h> 84int main(int argc, char **argv) {volatile int l = argc; volatile int k = 0; l/= k; return l;} 85EOF 86 87 cc -fsanitize=integer-divide-by-zero -o test -pg test.c 88 atf_check -s signal:8 -e match:"division by zero" ./test 89} 90 91int_divzero_pic_body(){ 92 cat > test.c << EOF 93#include <stdio.h> 94#include <stdlib.h> 95int help(int); 96int main(int argc, char **argv) {return help(argc);} 97EOF 98 99 cat > pic.c << EOF 100#include <stdlib.h> 101#include <stdio.h> 102int help(int count) {volatile int l = count; volatile int k = 0; return l/k;} 103EOF 104 105 cc -fsanitize=integer-divide-by-zero -fPIC -shared -o libtest.so pic.c 106 cc -o test test.c -fsanitize=integer-divide-by-zero -L. -ltest 107 108 export LD_LIBRARY_PATH=. 109 atf_check -s signal:8 -e match:"division by zero" ./test 110} 111int_divzero_pie_body(){ 112 113 #check whether -pie flag is supported on this architecture 114 if ! cc -pie -dM -E - < /dev/null 2>/dev/null >/dev/null; then 115 atf_set_skip "cc -pie not supported on this architecture" 116 fi 117 cat > test.c << EOF 118#include <stdio.h> 119#include <stdlib.h> 120int main(int argc, char **argv) {volatile int l = argc; int k = 0; l/= k; return l;} 121EOF 122 123 cc -fsanitize=integer-divide-by-zero -o test -fpie -pie test.c 124 atf_check -s signal:8 -e match:"division by zero" ./test 125} 126 127 128int_divzero32_body(){ 129 130 # check what this architecture is, after all 131 if ! cc -dM -E - < /dev/null | grep -F -q _LP64; then 132 atf_skip "This is not a 64 bit architecture" 133 fi 134 if ! cc -m32 -dM -E - < /dev/null 2>/dev/null > ./def32; then 135 atf_skip "cc -m32 Not supported on this architecture" 136 else 137 if grep -F -q _LP64 ./def32; then 138 atf_fail "cc -m32 Does not generate NetBSD32 binaries" 139 fi 140 fi 141 142 cat > test.c << EOF 143#include <stdio.h> 144#include <stdlib.h> 145int main(int argc, char **argv) {int l = argc; int k = 0; l/= k; return l;} 146EOF 147 148 cc -fsanitize=integer-divide-by-zero -o md32 -m32 test.c 149 cc -fsanitize=integer-divide-by-zero -o md64 test.c 150 file -b ./md32 > ./ftype32 151 file -b ./md64 > ./ftype64 152 if diff ./ftype32 ./ftype64 >/dev/null; then 153 atf_fail "Generated 32bit binaries do not differ from 64bit ones" 154 fi 155 echo "32bit binaries on this platform are:" 156 cat ./ftype32 157 echo "64bit binaries are on the other hand:" 158 cat ./ftype64 159 atf_check -s signal:8 -e match:"division by zero" ./md32 160 161 # Another test with profile 32bit binaries, just to make sure everything has been thoroughly done 162 cat > test.c << EOF 163#include <stdio.h> 164#include <stdlib.h> 165int main(int argc, char **argv) {int l = argc; int k = 0; l /= k; return l;} 166EOF 167 168 cc -fsanitize=integer-divide-by-zero -pg -m32 -o test test.c 169 atf_check -s signal:8 -e match:"division by zero" ./test 170} 171 172atf_test_case target_not_supported 173target_not_supported_head() 174{ 175 atf_set "descr" "Test forced skip" 176} 177 178atf_init_test_cases() 179{ 180 test_target 181 test $SUPPORT = 'n' && { 182 atf_add_test_case target_not_supported 183 return 0 184 } 185 atf_add_test_case int_divzero 186 atf_add_test_case int_divzero_profile 187 atf_add_test_case int_divzero_pie 188 atf_add_test_case int_divzero_pic 189 atf_add_test_case int_divzero32 190} 191