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 allocated_memory
43allocated_memory_head() {
44          atf_set "descr" "Test memory sanitizer for __msan_allocated_memory interface"
45          atf_set "require.progs" "cc paxctl"
46}
47
48atf_test_case allocated_memory_profile
49allocated_memory_profile_head() {
50          atf_set "descr" "Test memory sanitizer for __msan_allocated_memory with profiling option"
51          atf_set "require.progs" "cc paxctl"
52}
53atf_test_case allocated_memory_pic
54allocated_memory_pic_head() {
55          atf_set "descr" "Test memory sanitizer for __msan_allocated_memory with position independent code (PIC) flag"
56          atf_set "require.progs" "cc paxctl"
57}
58atf_test_case allocated_memory_pie
59allocated_memory_pie_head() {
60          atf_set "descr" "Test memory sanitizer for __msan_allocated_memory with position independent execution (PIE) flag"
61          atf_set "require.progs" "cc paxctl"
62}
63
64allocated_memory_body(){
65          cat > test.c << EOF
66#include <stdio.h>
67#include <sanitizer/msan_interface.h>
68
69int main() {
70  int x = 0;
71  __msan_allocated_memory(&x, sizeof(x));
72  return x;
73}
74EOF
75
76          cc -fsanitize=memory -o test test.c
77          paxctl +a test
78          atf_check -s ignore -o ignore -e match:"WARNING: MemorySanitizer: use-of-uninitialized-value" ./test
79}
80
81allocated_memory_profile_body(){
82          cat > test.c << EOF
83#include <stdio.h>
84#include <sanitizer/msan_interface.h>
85
86int main() {
87  int x = 0;
88  __msan_allocated_memory(&x, sizeof(x));
89  return x;
90}
91EOF
92
93          cc -fsanitize=memory -static -o test -pg test.c
94          paxctl +a test
95          atf_check -s ignore -o ignore -e match:"WARNING: MemorySanitizer: use-of-uninitialized-value" ./test
96}
97
98allocated_memory_pic_body(){
99          cat > test.c << 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.c << EOF
107#include <stdio.h>
108#include <sanitizer/msan_interface.h>
109
110int help(int argc) {
111  int x = 0;
112  __msan_allocated_memory(&x, sizeof(x));
113  return x;
114}
115EOF
116
117          cc -fsanitize=memory -fPIC -shared -o libtest.so pic.c
118          cc -o test test.c -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}
124allocated_memory_pie_body(){
125
126          #check whether -pie flag is supported on this architecture
127          if ! cc -pie -dM -E - < /dev/null 2>/dev/null >/dev/null; then
128                    atf_set_skip "cc -pie not supported on this architecture"
129          fi
130          cat > test.c << EOF
131#include <stdio.h>
132#include <sanitizer/msan_interface.h>
133
134int main() {
135  int x = 0;
136  __msan_allocated_memory(&x, sizeof(x));
137  return x;
138}
139EOF
140
141          cc -fsanitize=memory -o test -fpie -pie test.c
142          paxctl +a test
143          atf_check -s ignore -o ignore -e match:"WARNING: MemorySanitizer: use-of-uninitialized-value" ./test
144}
145
146
147atf_test_case target_not_supported
148target_not_supported_head()
149{
150          atf_set "descr" "Test forced skip"
151}
152
153target_not_supported_body()
154{
155          atf_skip "Target is not supported"
156}
157
158atf_init_test_cases()
159{
160          test_target
161          test $SUPPORT = 'n' && {
162                    atf_add_test_case target_not_supported
163                    return 0
164          }
165          atf_add_test_case allocated_memory
166          atf_add_test_case allocated_memory_profile
167          atf_add_test_case allocated_memory_pie
168          atf_add_test_case allocated_memory_pic
169}
170