88 lines
1.7 KiB
C++
88 lines
1.7 KiB
C++
/*
|
|
* \brief Default thread bootstrap code
|
|
* \author Norman Feske
|
|
* \author Martin Stein
|
|
* \date 2009-04-02
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2009-2013 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU General Public License version 2.
|
|
*/
|
|
|
|
/* Genode includes */
|
|
#include <base/thread.h>
|
|
#include <base/env.h>
|
|
|
|
/* OKL4 includes */
|
|
namespace Okl4
|
|
{
|
|
extern "C" {
|
|
#include <l4/utcb.h>
|
|
#include <l4/thread.h>
|
|
}
|
|
}
|
|
|
|
Genode::Native_thread_id main_thread_tid;
|
|
|
|
|
|
/*******************
|
|
** local helpers **
|
|
*******************/
|
|
|
|
namespace Okl4
|
|
{
|
|
/*
|
|
* Read global thread ID from user-defined handle and store it
|
|
* into a designated UTCB entry.
|
|
*/
|
|
L4_Word_t copy_uregister_to_utcb()
|
|
{
|
|
using namespace Okl4;
|
|
|
|
L4_Word_t my_global_id = L4_UserDefinedHandle();
|
|
__L4_TCR_Set_ThreadWord(Genode::UTCB_TCR_THREAD_WORD_MYSELF,
|
|
my_global_id);
|
|
return my_global_id;
|
|
}
|
|
}
|
|
|
|
|
|
/*****************************
|
|
** Startup library support **
|
|
*****************************/
|
|
|
|
void prepare_init_main_thread()
|
|
{
|
|
/* copy thread ID to utcb */
|
|
main_thread_tid.raw = Okl4::copy_uregister_to_utcb();
|
|
|
|
/* adjust main-thread ID if this is the main thread of core */
|
|
if (main_thread_tid.raw == 0) {
|
|
main_thread_tid.raw = Okl4::L4_rootserver.raw;
|
|
}
|
|
}
|
|
|
|
|
|
void prepare_reinit_main_thread() { prepare_init_main_thread(); }
|
|
|
|
|
|
/*****************
|
|
** Thread_base **
|
|
*****************/
|
|
|
|
void Genode::Thread_base::_thread_bootstrap()
|
|
{
|
|
_tid.l4id.raw = Okl4::copy_uregister_to_utcb();
|
|
}
|
|
|
|
|
|
void Genode::Thread_base::_init_platform_thread(size_t, Type type)
|
|
{
|
|
if (type == NORMAL) { return; }
|
|
_tid.l4id.raw = main_thread_tid.raw;
|
|
_thread_cap = env()->parent()->main_thread_cap();
|
|
}
|