xref: /netbsd-src/tests/usr.bin/c++/t_msan_check_mem.sh (revision 4bb9965c4810ecd9c59e6a3c0d9bfaeb7ab7b45c)
1f0720e69Skamil# Copyright (c) 2018 The NetBSD Foundation, Inc.
2f0720e69Skamil# All rights reserved.
3f0720e69Skamil#
4f0720e69Skamil# This code is derived from software contributed to The NetBSD Foundation
5f0720e69Skamil# by Yang Zheng.
6f0720e69Skamil#
7f0720e69Skamil# Redistribution and use in source and binary forms, with or without
8f0720e69Skamil# modification, are permitted provided that the following conditions
9f0720e69Skamil# are met:
10f0720e69Skamil# 1. Redistributions of source code must retain the above copyright
11f0720e69Skamil#    notice, this list of conditions and the following disclaimer.
12f0720e69Skamil# 2. Redistributions in binary form must reproduce the above copyright
13f0720e69Skamil#    notice, this list of conditions and the following disclaimer in the
14f0720e69Skamil#    documentation and/or other materials provided with the distribution.
15f0720e69Skamil#
16f0720e69Skamil# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17f0720e69Skamil# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18f0720e69Skamil# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19f0720e69Skamil# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20f0720e69Skamil# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21f0720e69Skamil# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22f0720e69Skamil# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23f0720e69Skamil# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24f0720e69Skamil# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25f0720e69Skamil# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26f0720e69Skamil# POSSIBILITY OF SUCH DAMAGE.
27f0720e69Skamil#
28f0720e69Skamil
29f0720e69Skamiltest_target()
30f0720e69Skamil{
31f0720e69Skamil        SUPPORT='n'
32f0720e69Skamil        if uname -m | grep -q "amd64" && command -v c++ >/dev/null 2>&1 && \
33f0720e69Skamil		   ! echo __clang__ | c++ -E - | grep -q __clang__; then
34f0720e69Skamil                # only clang with major version newer than 7 is supported
35f0720e69Skamil                CLANG_MAJOR=`echo __clang_major__ | c++ -E - | grep -o '^[[:digit:]]'`
36f0720e69Skamil                if [ "$CLANG_MAJOR" -ge "7" ]; then
37f0720e69Skamil                        SUPPORT='y'
38f0720e69Skamil                fi
39f0720e69Skamil        fi
40f0720e69Skamil}
41f0720e69Skamil
42f0720e69Skamilatf_test_case check_mem
43f0720e69Skamilcheck_mem_head() {
44f0720e69Skamil	atf_set "descr" "Test memory sanitizer for __msan_check_mem_is_initialized interface"
45f0720e69Skamil	atf_set "require.progs" "c++ paxctl"
46f0720e69Skamil}
47f0720e69Skamil
48f0720e69Skamilatf_test_case check_mem_profile
49f0720e69Skamilcheck_mem_profile_head() {
50f0720e69Skamil	atf_set "descr" "Test memory sanitizer for __msan_check_mem_is_initialized with profiling option"
51f0720e69Skamil	atf_set "require.progs" "c++ paxctl"
52f0720e69Skamil}
53f0720e69Skamilatf_test_case check_mem_pic
54f0720e69Skamilcheck_mem_pic_head() {
55f0720e69Skamil	atf_set "descr" "Test memory sanitizer for __msan_check_mem_is_initialized with position independent code (PIC) flag"
56f0720e69Skamil	atf_set "require.progs" "c++ paxctl"
57f0720e69Skamil}
58f0720e69Skamilatf_test_case check_mem_pie
59f0720e69Skamilcheck_mem_pie_head() {
60f0720e69Skamil	atf_set "descr" "Test memory sanitizer for __msan_check_mem_is_initialized with position independent execution (PIE) flag"
61f0720e69Skamil	atf_set "require.progs" "c++ paxctl"
62f0720e69Skamil}
63f0720e69Skamil
64f0720e69Skamilcheck_mem_body(){
65f0720e69Skamil	cat > test.cc << EOF
66f0720e69Skamil#include <sanitizer/msan_interface.h>
67f0720e69Skamil#include <stdlib.h>
68f0720e69Skamil
69f0720e69Skamilint main(int argc, char **argv) {
70f0720e69Skamil  int *volatile p = (int *)malloc(sizeof(int));
71f0720e69Skamil
72f0720e69Skamil  __msan_check_mem_is_initialized(p, sizeof(*p));
73f0720e69Skamil  return 0;
74f0720e69Skamil}
75f0720e69SkamilEOF
76f0720e69Skamil
77f0720e69Skamil	c++ -fsanitize=memory -o test test.cc
78f0720e69Skamil	paxctl +a test
79f0720e69Skamil	atf_check -s ignore -o ignore -e match:"Uninitialized bytes in __msan_check_mem_is_initialized at offset 0 inside" ./test
80f0720e69Skamil}
81f0720e69Skamil
82f0720e69Skamilcheck_mem_profile_body(){
83f0720e69Skamil	cat > test.cc << EOF
84f0720e69Skamil#include <sanitizer/msan_interface.h>
85f0720e69Skamil#include <stdlib.h>
86f0720e69Skamil
87f0720e69Skamilint main(int argc, char **argv) {
88f0720e69Skamil  int *volatile p = (int *)malloc(sizeof(int));
89f0720e69Skamil
90f0720e69Skamil  __msan_check_mem_is_initialized(p, sizeof(*p));
91f0720e69Skamil  return 0;
92f0720e69Skamil}
93f0720e69SkamilEOF
94f0720e69Skamil
95*4bb9965cSskrll	c++ -fsanitize=memory -static -o test -pg test.cc
96f0720e69Skamil	paxctl +a test
97f0720e69Skamil	atf_check -s ignore -o ignore -e match:"Uninitialized bytes in __msan_check_mem_is_initialized at offset 0 inside" ./test
98f0720e69Skamil}
99f0720e69Skamil
100f0720e69Skamilcheck_mem_pic_body(){
101f0720e69Skamil	cat > test.cc << EOF
102f0720e69Skamil#include <stdio.h>
103f0720e69Skamil#include <stdlib.h>
104f0720e69Skamilint help(int);
105f0720e69Skamilint main(int argc, char **argv) {return help(argc);}
106f0720e69SkamilEOF
107f0720e69Skamil
108f0720e69Skamil	cat > pic.cc << EOF
109f0720e69Skamil#include <sanitizer/msan_interface.h>
110f0720e69Skamil#include <stdlib.h>
111f0720e69Skamil
112f0720e69Skamilint help(int argc) {
113f0720e69Skamil  int *volatile p = (int *)malloc(sizeof(int));
114f0720e69Skamil
115f0720e69Skamil  __msan_check_mem_is_initialized(p, sizeof(*p));
116f0720e69Skamil  return 0;
117f0720e69Skamil}
118f0720e69SkamilEOF
119f0720e69Skamil
120f0720e69Skamil	c++ -fsanitize=memory -fPIC -shared -o libtest.so pic.cc
121f0720e69Skamil	c++ -o test test.cc -fsanitize=memory -L. -ltest
122f0720e69Skamil	paxctl +a test
123f0720e69Skamil
124f0720e69Skamil	export LD_LIBRARY_PATH=.
125f0720e69Skamil	atf_check -s ignore -o ignore -e match:"Uninitialized bytes in __msan_check_mem_is_initialized at offset 0 inside" ./test
126f0720e69Skamil}
127f0720e69Skamilcheck_mem_pie_body(){
128f0720e69Skamil
129f0720e69Skamil	#check whether -pie flag is supported on this architecture
130f0720e69Skamil	if ! c++ -pie -dM -E - < /dev/null 2>/dev/null >/dev/null; then
131f0720e69Skamil		atf_set_skip "c++ -pie not supported on this architecture"
132f0720e69Skamil	fi
133f0720e69Skamil	cat > test.cc << EOF
134f0720e69Skamil#include <sanitizer/msan_interface.h>
135f0720e69Skamil#include <stdlib.h>
136f0720e69Skamil
137f0720e69Skamilint main(int argc, char **argv) {
138f0720e69Skamil  int *volatile p = (int *)malloc(sizeof(int));
139f0720e69Skamil
140f0720e69Skamil  __msan_check_mem_is_initialized(p, sizeof(*p));
141f0720e69Skamil  return 0;
142f0720e69Skamil}
143f0720e69SkamilEOF
144f0720e69Skamil
145f0720e69Skamil	c++ -fsanitize=memory -o test -fpie -pie test.cc
146f0720e69Skamil	paxctl +a test
147f0720e69Skamil	atf_check -s ignore -o ignore -e match:"Uninitialized bytes in __msan_check_mem_is_initialized at offset 0 inside" ./test
148f0720e69Skamil}
149f0720e69Skamil
150f0720e69Skamilatf_test_case target_not_supported
151f0720e69Skamiltarget_not_supported_head()
152f0720e69Skamil{
153f0720e69Skamil	atf_set "descr" "Test forced skip"
154f0720e69Skamil}
155f0720e69Skamil
1565612f2caSkamiltarget_not_supported_body()
1575612f2caSkamil{
1585612f2caSkamil	atf_skip "Target is not supported"
1595612f2caSkamil}
1605612f2caSkamil
161f0720e69Skamilatf_init_test_cases()
162f0720e69Skamil{
163f0720e69Skamil	test_target
164f0720e69Skamil	test $SUPPORT = 'n' && {
165f0720e69Skamil		atf_add_test_case target_not_supported
166f0720e69Skamil		return 0
167f0720e69Skamil	}
168f0720e69Skamil	atf_add_test_case check_mem
169f0720e69Skamil	atf_add_test_case check_mem_profile
170f0720e69Skamil	atf_add_test_case check_mem_pie
171f0720e69Skamil	atf_add_test_case check_mem_pic
172f0720e69Skamil}
173