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 cc >/dev/null 2>&1 && \ 33 ! echo __clang__ | cc -E - | grep -q __clang__; then 34 # only clang with major version newer than 7 is supported 35 CLANG_MAJOR=`echo __clang_major__ | cc -E - | grep -o '^[[:digit:]]'` 36 if [ "$CLANG_MAJOR" -ge "7" ]; then 37 SUPPORT='y' 38 fi 39 fi 40} 41 42atf_test_case check_mem 43check_mem_head() { 44 atf_set "descr" "Test memory sanitizer for __msan_check_mem_is_initialized interface" 45 atf_set "require.progs" "cc paxctl" 46} 47 48atf_test_case check_mem_profile 49check_mem_profile_head() { 50 atf_set "descr" "Test memory sanitizer for __msan_check_mem_is_initialized with profiling option" 51 atf_set "require.progs" "cc paxctl" 52} 53atf_test_case check_mem_pic 54check_mem_pic_head() { 55 atf_set "descr" "Test memory sanitizer for __msan_check_mem_is_initialized with position independent code (PIC) flag" 56 atf_set "require.progs" "cc paxctl" 57} 58atf_test_case check_mem_pie 59check_mem_pie_head() { 60 atf_set "descr" "Test memory sanitizer for __msan_check_mem_is_initialized with position independent execution (PIE) flag" 61 atf_set "require.progs" "cc paxctl" 62} 63 64check_mem_body(){ 65 cat > test.c << EOF 66#include <sanitizer/msan_interface.h> 67#include <stdlib.h> 68 69int main(int argc, char **argv) { 70 int *volatile p = (int *)malloc(sizeof(int)); 71 72 __msan_check_mem_is_initialized(p, sizeof(*p)); 73 return 0; 74} 75EOF 76 77 cc -fsanitize=memory -o test test.c 78 paxctl +a test 79 atf_check -s ignore -o ignore -e match:"Uninitialized bytes in __msan_check_mem_is_initialized at offset 0 inside" ./test 80} 81 82check_mem_profile_body(){ 83 cat > test.c << EOF 84#include <sanitizer/msan_interface.h> 85#include <stdlib.h> 86 87int main(int argc, char **argv) { 88 int *volatile p = (int *)malloc(sizeof(int)); 89 90 __msan_check_mem_is_initialized(p, sizeof(*p)); 91 return 0; 92} 93EOF 94 95 cc -fsanitize=memory -o test -pg test.c 96 paxctl +a test 97 atf_check -s ignore -o ignore -e match:"Uninitialized bytes in __msan_check_mem_is_initialized at offset 0 inside" ./test 98} 99 100check_mem_pic_body(){ 101 cat > test.c << EOF 102#include <stdio.h> 103#include <stdlib.h> 104int help(int); 105int main(int argc, char **argv) {return help(argc);} 106EOF 107 108 cat > pic.c << EOF 109#include <sanitizer/msan_interface.h> 110#include <stdlib.h> 111 112int help(int argc) { 113 int *volatile p = (int *)malloc(sizeof(int)); 114 115 __msan_check_mem_is_initialized(p, sizeof(*p)); 116 return 0; 117} 118EOF 119 120 cc -fsanitize=memory -fPIC -shared -o libtest.so pic.c 121 cc -o test test.c -fsanitize=memory -L. -ltest 122 paxctl +a test 123 124 export LD_LIBRARY_PATH=. 125 atf_check -s ignore -o ignore -e match:"Uninitialized bytes in __msan_check_mem_is_initialized at offset 0 inside" ./test 126} 127check_mem_pie_body(){ 128 129 #check whether -pie flag is supported on this architecture 130 if ! cc -pie -dM -E - < /dev/null 2>/dev/null >/dev/null; then 131 atf_set_skip "cc -pie not supported on this architecture" 132 fi 133 cat > test.c << EOF 134#include <sanitizer/msan_interface.h> 135#include <stdlib.h> 136 137int main(int argc, char **argv) { 138 int *volatile p = (int *)malloc(sizeof(int)); 139 140 __msan_check_mem_is_initialized(p, sizeof(*p)); 141 return 0; 142} 143EOF 144 145 cc -fsanitize=memory -o test -fpie -pie test.c 146 paxctl +a test 147 atf_check -s ignore -o ignore -e match:"Uninitialized bytes in __msan_check_mem_is_initialized at offset 0 inside" ./test 148} 149 150 151atf_test_case target_not_supported 152target_not_supported_head() 153{ 154 atf_set "descr" "Test forced skip" 155} 156 157target_not_supported_body() 158{ 159 atf_skip "Target is not supported" 160} 161 162atf_init_test_cases() 163{ 164 test_target 165 test $SUPPORT = 'n' && { 166 atf_add_test_case target_not_supported 167 return 0 168 } 169 atf_add_test_case check_mem 170 atf_add_test_case check_mem_profile 171 atf_add_test_case check_mem_pie 172 atf_add_test_case check_mem_pic 173} 174