2011-12-22 16:19:25 +01:00
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/*
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* \brief Fiasco.OC specific thread bootstrap code
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* \author Stefan Kalkowski
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2014-01-28 14:30:36 +01:00
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* \author Martin Stein
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2011-12-22 16:19:25 +01:00
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* \date 2011-01-20
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*/
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/*
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2017-02-20 13:23:52 +01:00
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* Copyright (C) 2011-2017 Genode Labs GmbH
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2011-12-22 16:19:25 +01:00
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*
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* This file is part of the Genode OS framework, which is distributed
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2017-02-20 13:23:52 +01:00
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* under the terms of the GNU Affero General Public License version 3.
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2011-12-22 16:19:25 +01:00
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*/
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2014-01-28 14:30:36 +01:00
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/* Genode includes */
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#include <util/construct_at.h>
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2011-12-22 16:19:25 +01:00
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#include <base/thread.h>
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2014-04-30 16:30:40 +02:00
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#include <base/sleep.h>
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2016-06-13 13:53:58 +02:00
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#include <foc/native_capability.h>
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/* base-internal includes */
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#include <base/internal/native_utcb.h>
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2016-06-15 15:04:54 +02:00
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#include <base/internal/cap_map.h>
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2011-12-22 16:19:25 +01:00
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2014-01-28 14:30:36 +01:00
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/*****************************
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** Startup library support **
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*****************************/
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void prepare_init_main_thread()
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{
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using namespace Genode;
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enum { THREAD_CAP_ID = 1 };
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base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
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Cap_index * ci(cap_map().insert(THREAD_CAP_ID, Fiasco::MAIN_THREAD_CAP));
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2014-01-28 14:30:36 +01:00
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Fiasco::l4_utcb_tcr()->user[Fiasco::UTCB_TCR_BADGE] = (unsigned long)ci;
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Fiasco::l4_utcb_tcr()->user[Fiasco::UTCB_TCR_THREAD_OBJ] = 0;
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}
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void prepare_reinit_main_thread()
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{
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using namespace Genode;
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base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
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construct_at<Capability_map>(&cap_map());
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cap_idx_alloc().reinit();
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2014-01-28 14:30:36 +01:00
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prepare_init_main_thread();
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}
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2016-05-04 12:27:17 +02:00
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/************
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** Thread **
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************/
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2014-01-28 14:30:36 +01:00
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2016-05-04 12:27:17 +02:00
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void Genode::Thread::_thread_bootstrap() { }
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2011-12-22 16:19:25 +01:00
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2016-05-04 12:27:17 +02:00
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void Genode::Thread::_thread_start()
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2011-12-22 16:19:25 +01:00
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{
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using namespace Genode;
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2016-05-04 12:27:17 +02:00
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Thread::myself()->_thread_bootstrap();
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Thread::myself()->entry();
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2020-01-24 14:22:05 +01:00
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Thread::myself()->_join.wakeup();
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2014-04-30 16:30:40 +02:00
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sleep_forever();
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2011-12-22 16:19:25 +01:00
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}
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