| // RUN: rm -rf %t-dir |
| // RUN: mkdir %t-dir |
| |
| // RUN: %clangxx_tsan -O1 %s -o %t-dir/global_race.cc.exe && %deflake %run %t-dir/global_race.cc.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.cc.exe -fno-sanitize-thread-memory-access && not %deflake %run %t-dir/global_race.cc.exe 2>&1 \ |
| // RUN: | FileCheck --allow-empty --check-prefix=CHECK-MEMORY-ACCESS-OFF %s |
| // RUN: %clangxx_tsan -O1 %s -o %t-dir/global_race.cc.exe -mllvm -tsan-instrument-memory-accesses=0 && not %deflake %run %t-dir/global_race.cc.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.cc.exe+0x{{[0-9,a-f]+}}) |
| |
| // CHECK-MEMORY-ACCESS-OFF-NOT: WARNING: ThreadSanitizer: data race |
