1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
// RUN: rm -rf %t-dir
// RUN: mkdir %t-dir
// RUN: %clangxx_tsan -O1 %s -o %t-dir/global_race.cpp.exe && %deflake %run %t-dir/global_race.cpp.exe 2>&1 \
// RUN: | FileCheck %s
// Also check that memory access instrumentation can be configured by either
// driver or legacy flags:
// RUN: %clangxx_tsan -O1 %s -o %t-dir/global_race.cpp.exe -fno-sanitize-thread-memory-access && not %deflake %run %t-dir/global_race.cpp.exe 2>&1 \
// RUN: | FileCheck --allow-empty --check-prefix=CHECK-MEMORY-ACCESS-OFF %s
// RUN: %clangxx_tsan -O1 %s -o %t-dir/global_race.cpp.exe -mllvm -tsan-instrument-memory-accesses=0 && not %deflake %run %t-dir/global_race.cpp.exe 2>&1 \
// RUN: | FileCheck --allow-empty --check-prefix=CHECK-MEMORY-ACCESS-OFF %s
#include "test.h"
int GlobalData[10];
void *Thread(void *a) {
barrier_wait(&barrier);
GlobalData[2] = 42;
return 0;
}
int main() {
barrier_init(&barrier, 2);
print_address("addr=", 1, GlobalData);
pthread_t t;
pthread_create(&t, 0, Thread, 0);
GlobalData[2] = 43;
barrier_wait(&barrier);
pthread_join(t, 0);
}
// CHECK: addr=[[ADDR:0x[0-9,a-f]+]]
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK: Location is global 'GlobalData' {{(of size 40 )?}}at [[ADDR]] (global_race.cpp.exe+0x{{[0-9,a-f]+}})
// CHECK-MEMORY-ACCESS-OFF-NOT: WARNING: ThreadSanitizer: data race
|
