08e525ea06
Summary:
A snipped from the documentation of thread_setname_np(3):
NAME
pthread_getname_np - get and set descriptive name of a thread
LIBRARY
POSIX Threads Library (libpthread, -lpthread)
SYNOPSIS
#include <pthread.h>
int
pthread_getname_np(pthread_t thread, char *name, size_t len);
int
pthread_setname_np(pthread_t thread, const char *name, void *arg);
Sponsored by <The NetBSD Foundation>
Reviewers: joerg, dvyukov, eugenis, vitalybuka, kcc
Reviewed By: dvyukov
Subscribers: kubamracek, llvm-commits, #sanitizers
Tags: #sanitizers
Differential Revision: https://reviews.llvm.org/D37306
llvm-svn: 312159
45 lines
1.0 KiB
C++
45 lines
1.0 KiB
C++
// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
|
|
#include "test.h"
|
|
|
|
// OS X doesn't have pthread_setname_np(tid, name).
|
|
// UNSUPPORTED: darwin
|
|
|
|
#if defined(__FreeBSD__)
|
|
#include <pthread_np.h>
|
|
#define tsan_pthread_setname_np pthread_set_name_np
|
|
#elif defined(__NetBSD__)
|
|
#define tsan_pthread_setname_np(a, b) pthread_setname_np((a), "%s", (void *)(b))
|
|
#else
|
|
#define tsan_pthread_setname_np pthread_setname_np
|
|
#endif
|
|
|
|
long long Global;
|
|
|
|
void *Thread1(void *x) {
|
|
barrier_wait(&barrier);
|
|
Global++;
|
|
return 0;
|
|
}
|
|
|
|
void *Thread2(void *x) {
|
|
tsan_pthread_setname_np(pthread_self(), "foobar2");
|
|
Global--;
|
|
barrier_wait(&barrier);
|
|
return 0;
|
|
}
|
|
|
|
int main() {
|
|
barrier_init(&barrier, 3);
|
|
pthread_t t[2];
|
|
pthread_create(&t[0], 0, Thread1, 0);
|
|
pthread_create(&t[1], 0, Thread2, 0);
|
|
tsan_pthread_setname_np(t[0], "foobar1");
|
|
barrier_wait(&barrier);
|
|
pthread_join(t[0], NULL);
|
|
pthread_join(t[1], NULL);
|
|
}
|
|
|
|
// CHECK: WARNING: ThreadSanitizer: data race
|
|
// CHECK: Thread T1 'foobar1'
|
|
// CHECK: Thread T2 'foobar2'
|