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
29tsan_available_archs()
30{
31	atf_set "require.arch" "x86_64"
32}
33
34atf_test_case data_race
35data_race_head() {
36	atf_set "descr" "Test thread sanitizer for data race condition"
37	atf_set "require.progs" "c++ paxctl"
38	tsan_available_archs
39}
40
41atf_test_case data_race_profile
42data_race_profile_head() {
43	atf_set "descr" "Test thread sanitizer for data race with profiling option"
44	atf_set "require.progs" "c++ paxctl"
45	tsan_available_archs
46}
47atf_test_case data_race_pic
48data_race_pic_head() {
49	atf_set "descr" "Test thread sanitizer for data race with position independent code (PIC) flag"
50	atf_set "require.progs" "c++ paxctl"
51	tsan_available_archs
52}
53atf_test_case data_race_pie
54data_race_pie_head() {
55	atf_set "descr" "Test thread sanitizer for data race with position independent execution (PIE) flag"
56	atf_set "require.progs" "c++ paxctl"
57	tsan_available_archs
58}
59
60data_race_body(){
61	cat > test.cc << EOF
62#include <pthread.h>
63int GlobalData; pthread_barrier_t barrier;
64void *Thread(void *a) { pthread_barrier_wait(&barrier); GlobalData = 42; return 0; }
65int main() {
66  pthread_t t;
67  pthread_barrier_init(&barrier, NULL, 2);
68  pthread_create(&t, NULL, Thread, NULL);
69  pthread_barrier_wait(&barrier);
70  GlobalData = 43;
71  pthread_join(t, NULL);
72  return 0;
73}
74EOF
75
76	c++ -fsanitize=thread -o test test.cc
77	paxctl +a test
78	atf_check -s ignore -o ignore -e match:"WARNING: ThreadSanitizer: data race " ./test
79}
80
81data_race_profile_body(){
82	atf_expect_fail "PR toolchain/55760"
83	cat > test.cc << EOF
84#include <pthread.h>
85int GlobalData; pthread_barrier_t barrier;
86void *Thread(void *a) { pthread_barrier_wait(&barrier); GlobalData = 42; return 0; }
87int main() {
88  pthread_t t;
89  pthread_barrier_init(&barrier, NULL, 2);
90  pthread_create(&t, NULL, Thread, NULL);
91  pthread_barrier_wait(&barrier);
92  GlobalData = 43;
93  pthread_join(t, NULL);
94  return 0;
95}
96EOF
97
98	c++ -fsanitize=thread -static -o test -pg test.cc
99	paxctl +a test
100	atf_check -s ignore -o ignore -e match:"WARNING: ThreadSanitizer: data race " ./test
101}
102
103data_race_pic_body(){
104	cat > test.cc << EOF
105#include <stdio.h>
106#include <stdlib.h>
107int help(int);
108int main(int argc, char **argv) {return help(argc);}
109EOF
110
111	cat > pic.cc << EOF
112#include <pthread.h>
113int GlobalData; pthread_barrier_t barrier;
114void *Thread(void *a) { pthread_barrier_wait(&barrier); GlobalData = 42; return 0; }
115int help(int argc) {
116  pthread_t t;
117  pthread_barrier_init(&barrier, NULL, 2);
118  pthread_create(&t, NULL, Thread, NULL);
119  pthread_barrier_wait(&barrier);
120  GlobalData = 43;
121  pthread_join(t, NULL);
122  return 0;
123}
124EOF
125
126	c++ -fsanitize=thread -fPIC -shared -o libtest.so pic.cc
127	c++ -o test test.cc -fsanitize=thread -L. -ltest
128	paxctl +a test
129
130	export LD_LIBRARY_PATH=.
131	atf_check -s ignore -o ignore -e match:"WARNING: ThreadSanitizer: data race " ./test
132}
133data_race_pie_body(){
134
135	#check whether -pie flag is supported on this architecture
136	if ! c++ -pie -dM -E - < /dev/null 2>/dev/null >/dev/null; then
137		atf_set_skip "c++ -pie not supported on this architecture"
138	fi
139	cat > test.cc << EOF
140#include <pthread.h>
141int GlobalData; pthread_barrier_t barrier;
142void *Thread(void *a) { pthread_barrier_wait(&barrier); GlobalData = 42; return 0; }
143int main() {
144  pthread_t t;
145  pthread_barrier_init(&barrier, NULL, 2);
146  pthread_create(&t, NULL, Thread, NULL);
147  pthread_barrier_wait(&barrier);
148  GlobalData = 43;
149  pthread_join(t, NULL);
150  return 0;
151}
152EOF
153
154	c++ -fsanitize=thread -o test -fpie -pie test.cc
155	paxctl +a test
156	atf_check -s ignore -o ignore -e match:"WARNING: ThreadSanitizer: data race " ./test
157}
158
159atf_init_test_cases()
160{
161	atf_add_test_case data_race
162	atf_add_test_case data_race_profile
163	atf_add_test_case data_race_pie
164	atf_add_test_case data_race_pic
165}
166