HelenOS sources
thread_join 275 kernel/generic/include/proc/thread.h extern errno_t thread_join(thread_t *);
thread_join 1007 kernel/generic/src/console/cmd.c thread_join(thread);
thread_join 91 kernel/generic/src/ipc/kbox.c thread_join(TASK->kb.thread);
thread_join 125 kernel/generic/src/main/kinit.c thread_join(thread);
thread_join 129 kernel/test/mm/falloc2.c thread_join(threads[i]);
thread_join 164 kernel/test/mm/slab1.c thread_join(threads[i]);
thread_join 222 kernel/test/mm/slab2.c thread_join(threads[i]);
thread_join 74 kernel/test/thread/thread1.c thread_join(threads[i]);
HelenOS homepage, sources at GitHub