226 	/* Inform the grand-parent what the tid of this thread is. */  in pidfd_info_pause_thread()
240 	pthread_t thread;  in TEST_F()  local
257 		/* The thread will outlive the thread-group leader. */  in TEST_F()
258 		if (pthread_create(&thread, NULL, pidfd_info_pause_thread, &ipc_sockets[1]))  in TEST_F()
261 		/* Make the thread-group leader exit prematurely. */  in TEST_F()
266 	 * Opening a PIDFD_THREAD aka thread-specific pidfd based on a  in TEST_F()
267 	 * thread-group leader must succeed.  in TEST_F()
276 		 * We can't poll and wait for the old thread-group  in TEST_F()
277 		 * leader to exit using a thread-specific pidfd. The  in TEST_F()
278 		 * thread-group leader exited prematurely and  in TEST_F()
294 	/* Retrieve the tid of the thread. */  in TEST_F()
299 	/* Opening a thread as a thread-group leader must fail. */  in TEST_F()
304 	/* Opening a thread as a PIDFD_THREAD must succeed. */  in TEST_F()
311 	 * Note that pidfd_leader is a thread-group pidfd, so polling on it  in TEST_F()
312 	 * would only notify us once all thread in the thread-group have  in TEST_F()
314 	 * thread-group.  in TEST_F()
317 	/* Get PIDFD_GET_INFO using the thread-group leader pidfd. */  in TEST_F()
325 	 * Now retrieve the same info using the thread specific pidfd  in TEST_F()
326 	 * for the thread-group leader.  in TEST_F()
335 	/* Now try the thread-specific pidfd. */  in TEST_F()
338 	/* The thread hasn't exited, so no PIDFD_INFO_EXIT information yet. */  in TEST_F()
343 	 * Take down the whole thread-group. The thread-group leader  in TEST_F()
344 	 * exited successfully but the thread will now be SIGKILLed.  in TEST_F()
355 	/* The thread-group leader has been reaped. */  in TEST_F()
359 	 * Retrieve exit information for the thread-group leader via the  in TEST_F()
360 	 * thread-group leader pidfd.  in TEST_F()
366 	/* Even though the thread-group exited successfully it will still report the group exit code. */  in TEST_F()
371 	 * Retrieve exit information for the thread-group leader via the  in TEST_F()
372 	 * thread-specific pidfd.  in TEST_F()
379 	/* Even though the thread-group exited successfully it will still report the group exit code. */  in TEST_F()
383 	/* Retrieve exit information for the thread. */  in TEST_F()
389 	/* The thread got SIGKILLed. */  in TEST_F()
402 	/* Inform the grand-parent what the tid of this thread is. */  in pidfd_info_thread_exec()
418 	pthread_t thread;  in TEST_F()  local
435 		/* The thread will outlive the thread-group leader. */  in TEST_F()
436 		if (pthread_create(&thread, NULL, pidfd_info_thread_exec, &ipc_sockets[1]))  in TEST_F()
439 		/* Make the thread-group leader exit prematurely. */  in TEST_F()
443 	/* Open a thread-specific pidfd for the thread-group leader. */  in TEST_F()
451 		 * We can't poll and wait for the old thread-group  in TEST_F()
452 		 * leader to exit using a thread-specific pidfd. The  in TEST_F()
453 		 * thread-group leader exited prematurely and  in TEST_F()
457 		 * When the thread has execed it will taken over the old  in TEST_F()
458 		 * thread-group leaders struct pid. Calling poll after  in TEST_F()
459 		 * the thread execed will thus block again because a new  in TEST_F()
460 		 * thread-group has started.  in TEST_F()
474 	/* Retrieve the tid of the thread. */  in TEST_F()
478 	/* Opening a thread as a PIDFD_THREAD must succeed. */  in TEST_F()
482 	/* Now that we've opened a thread-specific pidfd the thread can exec. */  in TEST_F()
488 	/* Wait until the kernel has SIGKILLed the thread. */  in TEST_F()
493 	/* The thread has been reaped. */  in TEST_F()
496 	/* Retrieve thread-specific exit info from pidfd. */  in TEST_F()
501 	 * While the kernel will have SIGKILLed the whole thread-group  in TEST_F()
509 	 * The thread-group leader is still alive, the thread has taken  in TEST_F()
518 	/* Take down the thread-group leader. */  in TEST_F()
522 	 * Afte the exec we're dealing with an empty thread-group so now  in TEST_F()
523 	 * we must see an exit notification on the thread-specific pidfd  in TEST_F()
524 	 * for the thread-group leader as there's no subthread that can  in TEST_F()
536 	/* Retrieve exit information for the thread-group leader. */  in TEST_F()
551 	/* Inform the grand-parent what the tid of this thread is. */  in pidfd_info_thread_exec_sane()
567 	pthread_t thread;  in TEST_F()  local
584 		/* The thread will outlive the thread-group leader. */  in TEST_F()
585 		if (pthread_create(&thread, NULL, pidfd_info_thread_exec_sane, &ipc_sockets[1]))  in TEST_F()
589 		 * Pause the thread-group leader. It will be killed once  in TEST_F()
596 	/* Retrieve the tid of the thread. */  in TEST_F()
600 	/* Opening a thread as a PIDFD_THREAD must succeed. */  in TEST_F()
604 	/* Open a thread-specific pidfd for the thread-group leader. */  in TEST_F()
613 		 * thread-group leader will be assumed by the subthread which  in TEST_F()
614 		 * becomes the new thread-group leader. So no exit notification  in TEST_F()
630 	/* Now that we've opened a thread-specific pidfd the thread can exec. */  in TEST_F()
635 	/* Wait until the kernel has SIGKILLed the thread. */  in TEST_F()
640 	/* The thread has been reaped. */  in TEST_F()
643 	/* Retrieve thread-specific exit info from pidfd. */  in TEST_F()
648 	 * While the kernel will have SIGKILLed the whole thread-group  in TEST_F()
656 	 * The thread-group leader is still alive, the thread has taken  in TEST_F()
665 	/* Take down the thread-group leader. */  in TEST_F()
669 	 * Afte the exec we're dealing with an empty thread-group so now  in TEST_F()
670 	 * we must see an exit notification on the thread-specific pidfd  in TEST_F()
671 	 * for the thread-group leader as there's no subthread that can  in TEST_F()
683 	/* Retrieve exit information for the thread-group leader. */  in TEST_F()