140 lines
3.4 KiB
C++
140 lines
3.4 KiB
C++
/*
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* \brief Linux-specific environment
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* \author Norman Feske
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* \author Christian Helmuth
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* \date 2006-07-28
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*/
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/*
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* Copyright (C) 2006-2017 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 Affero General Public License version 3.
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*/
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#ifndef _INCLUDE__BASE__INTERNAL__PLATFORM_ENV_H_
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#define _INCLUDE__BASE__INTERNAL__PLATFORM_ENV_H_
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/* Genode includes */
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#include <base/heap.h>
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/* base-internal includes */
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#include <base/internal/expanding_cpu_session_client.h>
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#include <base/internal/expanding_region_map_client.h>
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#include <base/internal/expanding_pd_session_client.h>
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#include <base/internal/expanding_parent_client.h>
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#include <base/internal/region_map_mmap.h>
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#include <base/internal/local_rm_session.h>
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#include <base/internal/local_pd_session.h>
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#include <base/internal/local_parent.h>
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namespace Genode {
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class Platform_env_base;
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class Platform_env;
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}
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/**
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* Common base class of the 'Platform_env' implementations for core and
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* non-core processes.
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*/
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class Genode::Platform_env_base : public Env_deprecated
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{
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private:
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Cpu_session_capability _cpu_session_cap;
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Expanding_cpu_session_client _cpu_session_client;
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Region_map_mmap _region_map_mmap;
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Pd_session_capability _pd_session_cap;
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protected:
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/*
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* The '_local_pd_session' is protected because it is needed by
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* 'Platform_env' to initialize the stack area. This must not happen
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* in 'Platform_env_base' because the procedure differs between
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* core and non-core components.
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*/
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Local_pd_session _local_pd_session;
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public:
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/**
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* Constructor
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*/
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Platform_env_base(Parent &parent,
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Cpu_session_capability cpu_cap,
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Pd_session_capability pd_cap)
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:
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_cpu_session_cap(cpu_cap),
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_cpu_session_client(parent, cpu_cap, Parent::Env::cpu()),
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_region_map_mmap(false),
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_pd_session_cap(pd_cap),
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_local_pd_session(parent, _pd_session_cap)
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{ }
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/**
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* Constructor used by 'Core_env'
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*/
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Platform_env_base(Parent &parent)
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:
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Platform_env_base(parent, Cpu_session_capability(), Pd_session_capability())
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{ }
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/******************************
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** Env_deprecated interface **
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******************************/
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Region_map *rm_session() override { return &_region_map_mmap; }
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Cpu_session *cpu_session() override { return &_cpu_session_client; }
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Cpu_session_capability cpu_session_cap() override { return _cpu_session_cap; }
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Pd_session *pd_session() override { return &_local_pd_session; }
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Pd_session_capability pd_session_cap() override { return _pd_session_cap; }
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void reinit(Native_capability::Raw) override;
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void reinit_main_thread(Capability<Region_map> &) override;
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};
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/**
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* 'Platform_env' used by all processes except for core
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*/
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class Genode::Platform_env : public Platform_env_base
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{
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private:
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/**
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* Return instance of parent interface
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*/
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Local_parent &_parent();
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Heap _heap;
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/**
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* Attach stack area to local address space (for non-hybrid components)
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*/
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void _attach_stack_area();
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public:
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/**
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* Constructor
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*/
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Platform_env();
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/**
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* Destructor
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*/
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~Platform_env() { _parent().exit(0); }
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/******************************
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** Env_deprecated interface **
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******************************/
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Parent *parent() override { return &_parent(); }
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};
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#endif /* _INCLUDE__BASE__INTERNAL__PLATFORM_ENV_H_ */
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