forked from OSchip/llvm-project
39 lines
844 B
C++
39 lines
844 B
C++
// RUN: %clangxx_tsan -O1 %s -o %t && not %t 2>&1 | FileCheck %s
|
|
#include <pthread.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
|
|
extern "C" void AnnotateThreadName(const char *f, int l, const char *name);
|
|
|
|
int Global;
|
|
|
|
void *Thread1(void *x) {
|
|
sleep(1);
|
|
AnnotateThreadName(__FILE__, __LINE__, "Thread1");
|
|
Global++;
|
|
return NULL;
|
|
}
|
|
|
|
void *Thread2(void *x) {
|
|
#if SANITIZER_LINUX && __GLIBC_PREREQ(2, 12)
|
|
pthread_setname_np(pthread_self(), "Thread2");
|
|
#else
|
|
AnnotateThreadName(__FILE__, __LINE__, "Thread2");
|
|
#endif
|
|
Global--;
|
|
return NULL;
|
|
}
|
|
|
|
int main() {
|
|
pthread_t t[2];
|
|
pthread_create(&t[0], NULL, Thread1, NULL);
|
|
pthread_create(&t[1], NULL, Thread2, NULL);
|
|
pthread_join(t[0], NULL);
|
|
pthread_join(t[1], NULL);
|
|
}
|
|
|
|
// CHECK: WARNING: ThreadSanitizer: data race
|
|
// CHECK: Thread T1 'Thread1'
|
|
// CHECK: Thread T2 'Thread2'
|
|
|