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); |
} |
|
/** @} |
*/ |