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 29 tsan_available_archs() 30 { 31 atf_set "require.arch" "x86_64" 32 } 33 34 atf_test_case signal_errno 35 signal_errno_head() { 36 atf_set "descr" "Test thread sanitizer for errno modification in signal condition" 37 atf_set "require.progs" "c++ paxctl" 38 tsan_available_archs 39 } 40 41 atf_test_case signal_errno_profile 42 signal_errno_profile_head() { 43 atf_set "descr" "Test thread sanitizer for errno modification in signal with profiling option" 44 atf_set "require.progs" "c++ paxctl" 45 tsan_available_archs 46 } 47 atf_test_case signal_errno_pic 48 signal_errno_pic_head() { 49 atf_set "descr" "Test thread sanitizer for errno modification in signal with position independent code (PIC) flag" 50 atf_set "require.progs" "c++ paxctl" 51 tsan_available_archs 52 } 53 atf_test_case signal_errno_pie 54 signal_errno_pie_head() { 55 atf_set "descr" "Test thread sanitizer for errno modification in signal with position independent execution (PIE) flag" 56 atf_set "require.progs" "c++ paxctl" 57 tsan_available_archs 58 } 59 60 signal_errno_body(){ 61 cat > test.cc << EOF 62 #include <pthread.h> 63 #include <signal.h> 64 #include <stdlib.h> 65 #include <errno.h> 66 67 pthread_t mainth; 68 static void MyHandler(int a, siginfo_t *s, void *c) { errno = 1; } 69 static void* sendsignal(void *p) { pthread_kill(mainth, SIGPROF); return NULL; } 70 int main() { 71 mainth = pthread_self(); 72 struct sigaction act = {}; 73 act.sa_sigaction = &MyHandler; 74 sigaction(SIGPROF, &act, 0); 75 pthread_t th; 76 pthread_create(&th, 0, sendsignal, 0); 77 pthread_join(th, 0); 78 return 0; 79 } 80 EOF 81 82 c++ -fsanitize=thread -o test test.cc 83 paxctl +a test 84 atf_check -s ignore -o ignore -e match:"WARNING: ThreadSanitizer: signal handler spoils errno" ./test 85 } 86 87 signal_errno_profile_body(){ 88 atf_expect_fail "PR toolchain/55760" 89 cat > test.cc << EOF 90 #include <pthread.h> 91 #include <signal.h> 92 #include <stdlib.h> 93 #include <errno.h> 94 95 pthread_t mainth; 96 static void MyHandler(int a, siginfo_t *s, void *c) { errno = 1; } 97 static void* sendsignal(void *p) { pthread_kill(mainth, SIGPROF); return NULL; } 98 int main() { 99 mainth = pthread_self(); 100 struct sigaction act = {}; 101 act.sa_sigaction = &MyHandler; 102 sigaction(SIGPROF, &act, 0); 103 pthread_t th; 104 pthread_create(&th, 0, sendsignal, 0); 105 pthread_join(th, 0); 106 return 0; 107 } 108 EOF 109 110 c++ -fsanitize=thread -static -o test -pg test.cc 111 paxctl +a test 112 atf_check -s ignore -o ignore -e match:"WARNING: ThreadSanitizer: signal handler spoils errno" ./test 113 } 114 115 signal_errno_pic_body(){ 116 cat > test.cc << EOF 117 #include <stdio.h> 118 #include <stdlib.h> 119 int help(int); 120 int main(int argc, char **argv) {return help(argc);} 121 EOF 122 123 cat > pic.cc << EOF 124 #include <pthread.h> 125 #include <signal.h> 126 #include <stdlib.h> 127 #include <errno.h> 128 129 pthread_t mainth; 130 static void MyHandler(int a, siginfo_t *s, void *c) { errno = 1; } 131 static void* sendsignal(void *p) { pthread_kill(mainth, SIGPROF); return NULL; } 132 int help(int argc) { 133 mainth = pthread_self(); 134 struct sigaction act = {}; 135 act.sa_sigaction = &MyHandler; 136 sigaction(SIGPROF, &act, 0); 137 pthread_t th; 138 pthread_create(&th, 0, sendsignal, 0); 139 pthread_join(th, 0); 140 return 0; 141 } 142 EOF 143 144 c++ -fsanitize=thread -fPIC -shared -o libtest.so pic.cc 145 c++ -o test test.cc -fsanitize=thread -L. -ltest 146 paxctl +a test 147 148 export LD_LIBRARY_PATH=. 149 atf_check -s ignore -o ignore -e match:"WARNING: ThreadSanitizer: signal handler spoils errno" ./test 150 } 151 signal_errno_pie_body(){ 152 153 #check whether -pie flag is supported on this architecture 154 if ! c++ -pie -dM -E - < /dev/null 2>/dev/null >/dev/null; then 155 atf_set_skip "c++ -pie not supported on this architecture" 156 fi 157 cat > test.cc << EOF 158 #include <pthread.h> 159 #include <signal.h> 160 #include <stdlib.h> 161 #include <errno.h> 162 163 pthread_t mainth; 164 static void MyHandler(int a, siginfo_t *s, void *c) { errno = 1; } 165 static void* sendsignal(void *p) { pthread_kill(mainth, SIGPROF); return NULL; } 166 int main() { 167 mainth = pthread_self(); 168 struct sigaction act = {}; 169 act.sa_sigaction = &MyHandler; 170 sigaction(SIGPROF, &act, 0); 171 pthread_t th; 172 pthread_create(&th, 0, sendsignal, 0); 173 pthread_join(th, 0); 174 return 0; 175 } 176 EOF 177 178 c++ -fsanitize=thread -o test -fpie -pie test.cc 179 paxctl +a test 180 atf_check -s ignore -o ignore -e match:"WARNING: ThreadSanitizer: signal handler spoils errno" ./test 181 } 182 183 atf_init_test_cases() 184 { 185 atf_add_test_case signal_errno 186 atf_add_test_case signal_errno_profile 187 atf_add_test_case signal_errno_pie 188 atf_add_test_case signal_errno_pic 189 } 190
Indexes created Sat Sep 20 22:09:52 GMT 2025