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150
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1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
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2 #include "java.h"
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3 #include <memory.h>
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252
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4 #include <sanitizer/tsan_interface.h>
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150
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5
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236
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6 #if (__APPLE__)
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7 __attribute__((weak)) // Required for dyld macOS 12.0+
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8 #endif
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9 __attribute__((disable_sanitizer_instrumentation))
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10 extern "C" void
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11 __tsan_symbolize_external_ex(jptr pc,
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12 void (*add_frame)(void *, const char *,
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13 const char *, int, int),
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14 void *ctx) {
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150
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15 if (pc == (1234 | kExternalPCBit)) {
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16 add_frame(ctx, "MyInnerFunc", "MyInnerFile.java", 1234, 56);
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17 add_frame(ctx, "MyOuterFunc", "MyOuterFile.java", 4321, 65);
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18 }
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236
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19 if (pc == (2345 | kExternalPCBit)) {
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20 add_frame(ctx, "Caller1", "CallerFile.java", 111, 22);
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21 add_frame(ctx, "Caller2", "CallerFile.java", 333, 44);
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22 }
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23 if (pc == (3456 | kExternalPCBit)) {
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24 add_frame(ctx, "Allocer1", "Alloc.java", 11, 222);
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25 add_frame(ctx, "Allocer2", "Alloc.java", 33, 444);
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26 }
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150
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27 }
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28
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29 void *Thread(void *p) {
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30 barrier_wait(&barrier);
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236
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31 __tsan_func_entry(2345 | kExternalPCBit);
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32 __tsan_write1_pc((jptr)p + 16, 1234 | kExternalPCBit);
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33 __tsan_func_exit();
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150
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34 return 0;
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35 }
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36
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236
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37 jptr const kHeapSize = 64 * 1024;
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38 jptr java_heap[kHeapSize];
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39
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150
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40 int main() {
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41 barrier_init(&barrier, 2);
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236
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42 jptr jheap = (jptr)java_heap;
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150
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43 __tsan_java_init(jheap, kHeapSize);
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236
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44 const int kBlockSize = 32;
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45 __tsan_func_entry(3456 | kExternalPCBit);
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150
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46 __tsan_java_alloc(jheap, kBlockSize);
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236
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47 print_address("addr:", 2, jheap, jheap + 16);
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48 __tsan_func_exit();
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150
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49 pthread_t th;
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50 pthread_create(&th, 0, Thread, (void*)jheap);
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236
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51 __tsan_func_entry(2345 | kExternalPCBit);
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52 __tsan_write1_pc(jheap + 16, 1234 | kExternalPCBit);
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53 __tsan_func_exit();
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150
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54 barrier_wait(&barrier);
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55 pthread_join(th, 0);
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56 __tsan_java_free(jheap, kBlockSize);
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57 fprintf(stderr, "DONE\n");
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58 return __tsan_java_fini();
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59 }
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60
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236
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61 // CHECK: addr:[[BLOCK:0x[0-9,a-f]+]] [[ADDR:0x[0-9,a-f]+]]
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150
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62 // CHECK: WARNING: ThreadSanitizer: data race
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236
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63 // CHECK: Write of size 1 at [[ADDR]] by thread T1:
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150
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64 // CHECK: #0 MyInnerFunc MyInnerFile.java:1234:56
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65 // CHECK: #1 MyOuterFunc MyOuterFile.java:4321:65
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236
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66 // CHECK: #2 Caller1 CallerFile.java:111:22
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67 // CHECK: #3 Caller2 CallerFile.java:333:44
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68 // CHECK: Previous write of size 1 at [[ADDR]] by main thread:
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69 // CHECK: #0 MyInnerFunc MyInnerFile.java:1234:56
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70 // CHECK: #1 MyOuterFunc MyOuterFile.java:4321:65
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71 // CHECK: #2 Caller1 CallerFile.java:111:22
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72 // CHECK: #3 Caller2 CallerFile.java:333:44
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73 // CHECK: Location is heap block of size 32 at [[BLOCK]] allocated by main thread:
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74 // CHECK: #0 Allocer1 Alloc.java:11:222
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75 // CHECK: #1 Allocer2 Alloc.java:33:444
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150
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76 // CHECK: DONE
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