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150
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1 // RUN: %clangxx_tsan -O1 %s -o %t
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2 // RUN: %deflake %run %t 2>&1 | FileCheck %s
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3
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4 #include <pthread.h>
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5 #include <stdio.h>
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6 #include <stdlib.h>
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7 #include <string.h>
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8
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9 #include "../test.h"
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10
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11 extern "C" {
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12 void __tsan_on_report(void *report);
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13 int __tsan_get_report_loc(void *report, unsigned long idx, const char **type,
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14 void **addr, void **start,
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15 unsigned long *size, int *tid, int *fd,
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16 int *suppressable, void **trace,
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17 unsigned long trace_size);
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18 int __tsan_get_report_loc_object_type(void *report, unsigned long idx,
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19 const char **object_type);
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20 }
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21
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22 void *Thread(void *arg) {
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23 barrier_wait(&barrier);
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24 *((long *)arg) = 42;
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25 return NULL;
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26 }
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27
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28 int main() {
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29 barrier_init(&barrier, 2);
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30 void *tag = __tsan_external_register_tag("MyObject");
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31 long *obj = (long *)malloc(sizeof(long));
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32 fprintf(stderr, "obj = %p\n", obj);
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33 // CHECK: obj = [[ADDR:0x[0-9a-f]+]]
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34 __tsan_external_assign_tag(obj, tag);
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35
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36 pthread_t t;
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37 pthread_create(&t, 0, Thread, obj);
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38 *obj = 41;
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39 barrier_wait(&barrier);
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40 pthread_join(t, 0);
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41 fprintf(stderr, "Done.\n");
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42 return 0;
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43 }
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44
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45 void __tsan_on_report(void *report) {
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46 const char *type;
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47 void *addr;
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48 void *start;
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49 unsigned long size;
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50 int tid, fd, suppressable;
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51 void *trace[16] = {0};
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52 __tsan_get_report_loc(report, 0, &type, &addr, &start, &size, &tid, &fd,
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53 &suppressable, trace, 16);
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54 fprintf(stderr, "type = %s, start = %p, size = %ld\n", type, start, size);
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55 // CHECK: type = heap, start = [[ADDR]], size = 8
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56
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57 const char *object_type;
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58 __tsan_get_report_loc_object_type(report, 0, &object_type);
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59 fprintf(stderr, "object_type = %s\n", object_type);
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60 // CHECK: object_type = MyObject
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61 }
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62
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63 // CHECK: Done.
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64 // CHECK: ThreadSanitizer: reported 1 warnings
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