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 Yang Zheng. 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 uname -m | grep -q "amd64" && command -v c++ >/dev/null 2>&1 && \ 33 ! echo __clang__ | c++ -E - | grep -q __clang__; then 34 # only clang with major version newer than 7 is supported 35 CLANG_MAJOR=`echo __clang_major__ | c++ -E - | grep -o '^[[:digit:]]'` 36 if [ "$CLANG_MAJOR" -ge "7" ]; then 37 SUPPORT='y' 38 fi 39 fi 40} 41 42atf_test_case realloc 43realloc_head() { 44 atf_set "descr" "Test memory sanitizer for realloc" 45 atf_set "require.progs" "c++ paxctl" 46} 47 48atf_test_case realloc_profile 49realloc_profile_head() { 50 atf_set "descr" "Test memory sanitizer for realloc with profiling option" 51 atf_set "require.progs" "c++ paxctl" 52} 53atf_test_case realloc_pic 54realloc_pic_head() { 55 atf_set "descr" "Test memory sanitizer for realloc with position independent code (PIC) flag" 56 atf_set "require.progs" "c++ paxctl" 57} 58atf_test_case realloc_pie 59realloc_pie_head() { 60 atf_set "descr" "Test memory sanitizer for realloc with position independent execution (PIE) flag" 61 atf_set "require.progs" "c++ paxctl" 62} 63 64realloc_body(){ 65 cat > test.cc << EOF 66#include <stdlib.h> 67int main(int argc, char **argv) { 68 char *p = (char *)malloc(100); 69 p = (char *)realloc(p, 10000); 70 char x = p[50]; 71 free(p); 72 return x; 73} 74EOF 75 76 c++ -fsanitize=memory -o test test.cc 77 paxctl +a test 78 atf_check -s ignore -o ignore -e match:"WARNING: MemorySanitizer: use-of-uninitialized-value" ./test 79} 80 81realloc_profile_body(){ 82 cat > test.cc << EOF 83#include <stdlib.h> 84int main(int argc, char **argv) { 85 char *p = (char *)malloc(100); 86 p = (char *)realloc(p, 10000); 87 char x = p[50]; 88 free(p); 89 return x; 90} 91EOF 92 93 c++ -fsanitize=memory -static -o test -pg test.cc 94 paxctl +a test 95 atf_check -s ignore -o ignore -e match:"WARNING: MemorySanitizer: use-of-uninitialized-value" ./test 96} 97 98realloc_pic_body(){ 99 cat > test.cc << EOF 100#include <stdio.h> 101#include <stdlib.h> 102int help(int); 103int main(int argc, char **argv) {return help(argc);} 104EOF 105 106 cat > pic.cc << EOF 107#include <stdlib.h> 108int help(int argc) { 109 char *p = (char *)malloc(100); 110 p = (char *)realloc(p, 10000); 111 char x = p[50]; 112 free(p); 113 return x; 114} 115EOF 116 117 c++ -fsanitize=memory -fPIC -shared -o libtest.so pic.cc 118 c++ -o test test.cc -fsanitize=memory -L. -ltest 119 paxctl +a test 120 121 export LD_LIBRARY_PATH=. 122 atf_check -s ignore -o ignore -e match:"WARNING: MemorySanitizer: use-of-uninitialized-value" ./test 123} 124realloc_pie_body(){ 125 126 #check whether -pie flag is supported on this architecture 127 if ! c++ -pie -dM -E - < /dev/null 2>/dev/null >/dev/null; then 128 atf_set_skip "c++ -pie not supported on this architecture" 129 fi 130 cat > test.cc << EOF 131#include <stdlib.h> 132int main(int argc, char **argv) { 133 char *p = (char *)malloc(100); 134 p = (char *)realloc(p, 10000); 135 char x = p[50]; 136 free(p); 137 return x; 138} 139EOF 140 141 c++ -fsanitize=memory -o test -fpie -pie test.cc 142 paxctl +a test 143 atf_check -s ignore -o ignore -e match:"WARNING: MemorySanitizer: use-of-uninitialized-value" ./test 144} 145 146atf_test_case target_not_supported 147target_not_supported_head() 148{ 149 atf_set "descr" "Test forced skip" 150} 151 152target_not_supported_body() 153{ 154 atf_skip "Target is not supported" 155} 156 157atf_init_test_cases() 158{ 159 test_target 160 test $SUPPORT = 'n' && { 161 atf_add_test_case target_not_supported 162 return 0 163 } 164 atf_add_test_case realloc 165 atf_add_test_case realloc_profile 166 atf_add_test_case realloc_pie 167 atf_add_test_case realloc_pic 168} 169