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// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>
void *Thread1(void *p) {
*(int*)p = 42;
return 0;
}
void *Thread2(void *p) {
*(int*)p = 44;
return 0;
}
void *alloc() {
return malloc(99);
}
void *AllocThread(void* arg) {
return alloc();
}
int main() {
void *p = 0;
pthread_t t[2];
pthread_create(&t[0], 0, AllocThread, 0);
pthread_join(t[0], &p);
fprintf(stderr, "addr=%p\n", p);
pthread_create(&t[0], 0, Thread1, (char*)p + 16);
pthread_create(&t[1], 0, Thread2, (char*)p + 16);
pthread_join(t[0], 0);
pthread_join(t[1], 0);
return 0;
}
// CHECK: addr=[[ADDR:0x[0-9,a-f]+]]
// CHECK: WARNING: ThreadSanitizer: data race
// ...
// CHECK: Location is heap block of size 99 at [[ADDR]] allocated by thread T1:
// CHCEK: #0 malloc
// CHECK: #{{1|2}} alloc
// CHECK: #{{2|3}} AllocThread
// ...
// CHECK: Thread T1 (tid={{.*}}, finished) created by main thread at:
// CHECK: #0 pthread_create
// CHECK: #1 main
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