102 lines
2.6 KiB
C++
102 lines
2.6 KiB
C++
/*
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* \brief Fiasco-specific implementation of the non-core startup Thread API
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* \author Norman Feske
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* \author Stefan Kalkowski
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* \author Martin Stein
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* \date 2010-01-19
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*/
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/*
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* Copyright (C) 2010-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/* Genode includes */
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#include <base/thread.h>
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#include <base/printf.h>
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#include <base/sleep.h>
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#include <base/env.h>
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namespace Fiasco {
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#include <l4/sys/utcb.h>
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}
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using namespace Genode;
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void Thread_base::_deinit_platform_thread()
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{
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using namespace Fiasco;
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if (_context->utcb && _thread_cap.valid()) {
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Cap_index *i = (Cap_index*)l4_utcb_tcr_u(_context->utcb)->user[UTCB_TCR_BADGE];
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cap_map()->remove(i);
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_cpu_session->kill_thread(_thread_cap);
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env()->rm_session()->remove_client(_pager_cap);
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}
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}
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void Thread_base::_init_platform_thread(size_t weight, Type type)
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{
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/* if no cpu session is given, use it from the environment */
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if (!_cpu_session)
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_cpu_session = env()->cpu_session();
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if (type == NORMAL)
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{
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/* create thread at core */
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char buf[48];
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name(buf, sizeof(buf));
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_thread_cap = _cpu_session->create_thread(weight, buf);
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/* assign thread to protection domain */
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if (!_thread_cap.valid() ||
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env()->pd_session()->bind_thread(_thread_cap))
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throw Cpu_session::Thread_creation_failed();
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return;
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}
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/* adjust values whose computation differs for a main thread */
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_tid = Fiasco::MAIN_THREAD_CAP;
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_thread_cap = env()->parent()->main_thread_cap();
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if (!_thread_cap.valid())
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throw Cpu_session::Thread_creation_failed();
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/* make thread object known to the Fiasco environment */
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addr_t const t = (addr_t)this;
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Fiasco::l4_utcb_tcr()->user[Fiasco::UTCB_TCR_THREAD_OBJ] = t;
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}
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void Thread_base::start()
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{
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using namespace Fiasco;
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/* create new pager object and assign it to the new thread */
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_pager_cap = env()->rm_session()->add_client(_thread_cap);
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_cpu_session->set_pager(_thread_cap, _pager_cap);
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/* get gate-capability and badge of new thread */
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Thread_state state;
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try { state = _cpu_session->state(_thread_cap); }
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catch (...) { throw Cpu_session::Thread_creation_failed(); }
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_tid = state.kcap;
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_context->utcb = state.utcb;
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Cap_index *i = cap_map()->insert(state.id, state.kcap);
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l4_utcb_tcr_u(state.utcb)->user[UTCB_TCR_BADGE] = (unsigned long) i;
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l4_utcb_tcr_u(state.utcb)->user[UTCB_TCR_THREAD_OBJ] = (addr_t)this;
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/* register initial IP and SP at core */
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_cpu_session->start(_thread_cap, (addr_t)_thread_start, _context->stack_top());
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}
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void Thread_base::cancel_blocking()
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{
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_cpu_session->cancel_blocking(_thread_cap);
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}
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