116 lines
2.8 KiB
C++
116 lines
2.8 KiB
C++
/*
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* \brief Region map interface
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* \author Christian Helmuth
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* \author Norman Feske
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* \date 2006-07-17
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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 _REGION_MAP_COMPONENT_H_
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#define _REGION_MAP_COMPONENT_H_
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/* Genode includes */
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#include <base/rpc_server.h>
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#include <pd_session/capability.h>
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#include <region_map/client.h>
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/* GDB monitor includes */
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#include "dataspace_object.h"
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namespace Gdb_monitor {
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using namespace Genode;
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class Region_map_component : public Rpc_object<Region_map>
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{
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private:
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Rpc_entrypoint &_ep;
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Allocator &_alloc;
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Pd_session_capability _pd;
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Region_map_client _parent_region_map;
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public:
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class Region : public Avl_node<Region>
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{
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private:
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void *_start;
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void *_end;
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off_t _offset;
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Dataspace_capability _ds_cap;
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public:
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Region(void *start, void *end, Dataspace_capability ds_cap, Genode::off_t offset)
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: _start(start), _end(end), _offset(offset), _ds_cap(ds_cap) {}
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bool higher(Region *e) { return e->_start > _start; }
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Region *find_by_addr(void *addr)
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{
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if ((addr >= _start) && (addr <= _end))
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return this;
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Region *region = child(addr > _start);
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return region ? region->find_by_addr(addr) : 0;
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}
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void *start() { return _start; }
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off_t offset() { return _offset; }
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Dataspace_capability ds_cap() { return _ds_cap; }
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};
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private:
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Avl_tree<Region> _region_map;
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Lock _region_map_lock;
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Dataspace_pool &_managed_ds_map;
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public:
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/**
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* Constructor
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*/
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Region_map_component(Rpc_entrypoint &ep,
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Allocator &alloc,
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Dataspace_pool &managed_ds_map,
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Pd_session_capability pd,
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Capability<Region_map> parent_region_map);
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~Region_map_component();
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/**
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* Find region for given address
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*
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* \param local_addr lookup address
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* \param offset_in_region translated address in looked up region
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*/
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Region *find_region(void *local_addr, addr_t *offset_in_region);
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/**************************************
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** Region manager session interface **
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**************************************/
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Local_addr attach (Dataspace_capability, size_t,
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off_t, bool, Local_addr, bool,
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bool) override;
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void detach (Local_addr) override;
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void fault_handler (Signal_context_capability) override;
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State state () override;
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Dataspace_capability dataspace () override;
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};
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}
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#endif /* _REGION_MAP_COMPONENT_H_ */
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