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1 // RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
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2
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3 // on_exit() is not available on Darwin.
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4 // UNSUPPORTED: darwin
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5
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6 #include "test.h"
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7
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8 volatile long global;
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9
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10 void *thread(void *x) {
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11 global++;
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12 barrier_wait(&barrier);
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13 return nullptr;
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14 }
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15
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16 void on_exit_callback(int status, void *arg) {
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17 fprintf(stderr, "on_exit_callback(%d, %lu)\n", status, (long)arg);
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18 global++;
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19 }
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20
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21 int main() {
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22 on_exit(on_exit_callback, (void *)42l);
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23 barrier_init(&barrier, 2);
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24 pthread_t th;
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25 pthread_create(&th, nullptr, thread, nullptr);
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26 pthread_detach(th);
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27 barrier_wait(&barrier);
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28 return 2;
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29 }
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30
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31 // CHECK: on_exit_callback(2, 42)
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32 // CHECK: WARNING: ThreadSanitizer: data race
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33 // CHECK: Write of size 8
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34 // CHECK: #0 on_exit_callback
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35 // CHECK: #1 on_exit_callback_installed_at
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36 // CHECK: #2 main
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