t_ubsan_int_sub_overflow.sh revision 1.1
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_sub_overflow 42int_sub_overflow_head() { 43 atf_set "descr" "Test Undefined Behavior for int subtraction overflows" 44 atf_set "require.progs" "cc" 45} 46 47atf_test_case int_sub_overflow_profile 48int_sub_overflow_profile_head() { 49 atf_set "descr" "Test Undefined Behavior for int subtraction overflows with profiling option" 50 atf_set "require.progs" "cc" 51} 52atf_test_case int_sub_overflow_pic 53int_sub_overflow_pic_head() { 54 atf_set "descr" "Test Undefined Behavior for int subtraction overflows with position independent code (PIC) flag" 55 atf_set "require.progs" "cc" 56} 57atf_test_case int_sub_overflow_pie 58int_sub_overflow_pie_head() { 59 atf_set "descr" "Test Undefined Behavior for int subtraction overflows with position independent execution (PIE) flag" 60 atf_set "require.progs" "cc" 61} 62atf_test_case int_sub_overflow32 63int_sub_overflow32_head() { 64 atf_set "descr" "Test Undefined Behavior for int subtraction overflows in NetBSD_32 emulation" 65 atf_set "require.progs" "cc file diff cat" 66} 67 68 69int_sub_overflow_body(){ 70 cat > test.c << EOF 71#include <limits.h> 72#include <stdio.h> 73#include <stdlib.h> 74int main(int argc, char **argv) {volatile int l = INT_MIN; l-=argc; return l;} 75EOF 76 77 cc -fsanitize=undefined -o test test.c 78 atf_check -s ignore -e match:"signed integer overflow" ./test 79} 80 81int_sub_overflow_profile_body(){ 82 cat > test.c << EOF 83#include <limits.h> 84#include <stdio.h> 85#include <stdlib.h> 86int main(int argc, char **argv) {volatile int l = INT_MIN; l-=argc; return l;} 87EOF 88 89 cc -fsanitize=undefined -o test -pg test.c 90 atf_check -s ignore -e match:"signed integer overflow" ./test 91} 92 93int_sub_overflow_pic_body(){ 94 cat > test.c << EOF 95#include <stdio.h> 96#include <stdlib.h> 97int help(int); 98int main(int argc, char **argv) {volatile int k = help(argc); return k;} 99EOF 100 101 cat > pic.c << EOF 102#include <stdlib.h> 103#include <stdio.h> 104#include <limits.h> 105int help(int count) {volatile int l = INT_MIN; l-= count; return l;} 106EOF 107 108 cc -fsanitize=undefined -fPIC -shared -o libtest.so pic.c 109 cc -o test test.c -fsanitize=undefined -L. -ltest 110 111 export LD_LIBRARY_PATH=. 112 atf_check -s ignore -e match:"signed integer overflow" ./test 113} 114 115int_sub_overflow_pie_body(){ 116 117 #check whether -pie flag is supported on this architecture 118 if ! cc -pie -dM -E - < /dev/null 2>/dev/null >/dev/null; then 119 atf_set_skip "cc -pie not supported on this architecture" 120 fi 121 cat > test.c << EOF 122#include <limits.h> 123#include <stdio.h> 124#include <stdlib.h> 125int main(int argc, char **argv) {volatile int l = INT_MIN; l-= argc; return l;} 126EOF 127 128 cc -fsanitize=undefined -o test -fpie -pie test.c 129 atf_check -s ignore -e match:"signed integer overflow" ./test 130} 131 132 133int_sub_overflow32_body(){ 134 135 # check what this architecture is, after all 136 if ! cc -dM -E - < /dev/null | grep -F -q _LP64; then 137 atf_skip "This is not a 64 bit architecture" 138 fi 139 if ! cc -m32 -dM -E - < /dev/null 2>/dev/null > ./def32; then 140 atf_skip "cc -m32 Not supported on this architecture" 141 else 142 if grep -F -q _LP64 ./def32; then 143 atf_fail "cc -m32 Does not generate NetBSD32 binaries" 144 fi 145 fi 146 147 cat > test.c << EOF 148#include <limits.h> 149#include <stdio.h> 150#include <stdlib.h> 151int main(int argc, char **argv) {volatile int l = INT_MIN; l-= argc; return l;} 152EOF 153 154 cc -fsanitize=undefined -o md32 -m32 test.c 155 cc -fsanitize=undefined -o md64 test.c 156 file -b ./md32 > ./ftype32 157 file -b ./md64 > ./ftype64 158 if diff ./ftype32 ./ftype64 >/dev/null; then 159 atf_fail "Generated binz ain't no different" 160 fi 161 echo "32bit Binz on this platform are:" 162 cat ./ftype32 163 echo "64bit Binz are on the other hand:" 164 cat ./ftype64 165 atf_check -s ignore -e match:"signed integer overflow" ./md32 166 167 # Another test with profile 32bit binaries, just to make sure everything has been thoroughly done 168 cat > test.c << EOF 169#include <limits.h> 170#include <stdio.h> 171#include <stdlib.h> 172int main(int argc, char **argv) {volatile int l = INT_MIN; l-= argc; return l;} 173EOF 174 175 cc -fsanitize=undefined -pg -m32 -o test test.c 176 atf_check -s ignore -e match:"signed integer overflow" ./test 177} 178 179atf_test_case target_not_supported 180target_not_supported_head() 181{ 182 atf_set "descr" "Test forced skip" 183} 184 185atf_init_test_cases() 186{ 187 test_target 188 test $SUPPORT = 'n' && { 189 atf_add_test_case target_not_supported 190 return 0 191 } 192 atf_add_test_case int_sub_overflow 193 atf_add_test_case int_sub_overflow_profile 194 atf_add_test_case int_sub_overflow_pie 195 atf_add_test_case int_sub_overflow_pic 196 atf_add_test_case int_sub_overflow32 197} 198