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1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
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2 #include "test.h"
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3
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4 #if defined(__linux__)
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5 #define USE_PTHREAD_SETNAME_NP __GLIBC_PREREQ(2, 12)
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6 #define tsan_pthread_setname_np pthread_setname_np
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7 #elif defined(__FreeBSD__)
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8 #include <pthread_np.h>
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9 #define USE_PTHREAD_SETNAME_NP 1
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10 #define tsan_pthread_setname_np pthread_set_name_np
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11 #elif defined(__NetBSD__)
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12 #define USE_PTHREAD_SETNAME_NP 1
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13 #define tsan_pthread_setname_np(a, b) pthread_setname_np((a), "%s", (void *)(b))
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14 #else
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15 #define USE_PTHREAD_SETNAME_NP 0
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16 #endif
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17
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18 extern "C" void AnnotateThreadName(const char *f, int l, const char *name);
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19
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20 int Global;
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21
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22 void *Thread1(void *x) {
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23 barrier_wait(&barrier);
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24 AnnotateThreadName(__FILE__, __LINE__, "Thread1");
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25 Global++;
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26 return NULL;
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27 }
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28
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29 void *Thread2(void *x) {
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30 #if USE_PTHREAD_SETNAME_NP
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31 tsan_pthread_setname_np(pthread_self(), "Thread2");
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32 #else
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33 AnnotateThreadName(__FILE__, __LINE__, "Thread2");
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34 #endif
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35 Global--;
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36 barrier_wait(&barrier);
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37 return NULL;
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38 }
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39
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40 int main() {
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41 barrier_init(&barrier, 2);
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42 pthread_t t[2];
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43 pthread_create(&t[0], NULL, Thread1, NULL);
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44 pthread_create(&t[1], NULL, Thread2, NULL);
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45 pthread_join(t[0], NULL);
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46 pthread_join(t[1], NULL);
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47 }
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48
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49 // CHECK: WARNING: ThreadSanitizer: data race
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50 // CHECK: Thread T1 'Thread1'
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51 // CHECK: Thread T2 'Thread2'
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