| 0,0 → 1,80 |
|---|
| /* |
| * Copyright (c) 2005 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup main |
| * @{ |
| */ |
| |
| /** |
| * @file |
| * @brief Userspace bootstrap thread. |
| * |
| * This file contains uinit kernel thread wich is used to start every |
| * userspace thread including threads created by SYS_THREAD_CREATE syscall. |
| * |
| * @see SYS_THREAD_CREATE |
| */ |
| |
| #include <main/uinit.h> |
| #include <arch/types.h> |
| #include <proc/thread.h> |
| #include <userspace.h> |
| #include <mm/slab.h> |
| #include <arch.h> |
| |
| /** Thread used to bring up userspace thread. |
| * |
| * @param arg Pointer to structure containing userspace entry and stack |
| * addresses. |
| */ |
| void uinit(void *arg) |
| { |
| uspace_arg_t uarg; |
| |
| /* |
| * So far, we don't have a use for joining userspace threads so we |
| * immediately detach each uinit thread. If joining of userspace threads |
| * is required, some userspace API based on the kernel mechanism will |
| * have to be implemented. Moreover, garbage collecting of threads that |
| * didn't detach themselves and nobody else joined them will have to be |
| * deployed for the event of forceful task termination. |
| */ |
| thread_detach(THREAD); |
| |
| uarg.uspace_entry = ((uspace_arg_t *) arg)->uspace_entry; |
| uarg.uspace_stack = ((uspace_arg_t *) arg)->uspace_stack; |
| uarg.uspace_uarg = ((uspace_arg_t *) arg)->uspace_uarg; |
| uarg.uspace_thread_function = NULL; |
| uarg.uspace_thread_arg = NULL; |
| |
| free((uspace_arg_t *) arg); |
| userspace(&uarg); |
| } |
| |
| /** @} |
| */ |