1 // SPDX-License-Identifier: GPL-2.0
17 #include "util/synthetic-events.h"
21 #define THREADS 4  macro
32 static struct thread_data threads[THREADS];  variable
40 		   MAP_SHARED|MAP_ANONYMOUS, -1, 0);  in thread_init()
44 		return -1;  in thread_init()
47 	td->map = map;  in thread_init()
48 	td->tid = syscall(SYS_gettid);  in thread_init()
50 	pr_debug("tid = %d, map = %p\n", td->tid, map);  in thread_init()
64 	ret = write(td->ready[1], &go, sizeof(int));  in thread_fn()
75 	munmap(td->map, page_size);  in thread_fn()
81 	struct thread_data *td = &threads[i];  in thread_create()
84 	if (pipe(td->ready))  in thread_create()
85 		return -1;  in thread_create()
87 	err = pthread_create(&td->pt, NULL, thread_fn, td);  in thread_create()
90 		ssize_t ret = read(td->ready[0], &go, sizeof(int));  in thread_create()
94 	close(td->ready[0]);  in thread_create()
95 	close(td->ready[1]);  in thread_create()
101 	struct thread_data *td0 = &threads[0];  in threads_create()
108 		return -1;  in threads_create()
110 	for (i = 1; !err && i < THREADS; i++)  in threads_create()
118 	struct thread_data *td0 = &threads[0];  in threads_destroy()
122 	munmap(td0->map, page_size);  in threads_destroy()
126 	for (i = 1; !err && i < THREADS; i++)  in threads_destroy()
127 		err = pthread_join(threads[i].pt, NULL);  in threads_destroy()
162 	 * The threads_create will not return before all threads  in mmap_events()
168 	TEST_ASSERT_VAL("failed to create threads", !threads_create());  in mmap_events()
178 	TEST_ASSERT_VAL("failed to destroy threads", !threads_destroy());  in mmap_events()
185 	for (i = 0; i < THREADS; i++) {  in mmap_events()
186 		struct thread_data *td = &threads[i];  in mmap_events()
190 		thread = machine__findnew_thread(machine, getpid(), td->tid);  in mmap_events()
192 		pr_debug("looking for map %p\n", td->map);  in mmap_events()
195 				 (unsigned long) (td->map + 1), &al);  in mmap_events()
201 			err = -1;  in mmap_events()
205 		pr_debug("map %p, addr %" PRIx64 "\n", al.map, al.map->start);  in mmap_events()
214  * This test creates 'THREADS' number of threads (including
217  * When threads are created, we synthesize them with both