e5fe2b82b7
This changeset fixes line alignment issues, spacing, spelling, etc. for files that are used during SE Mode. Change-Id: Ie61b8d0eb4ebb5af554d72f1297808027833616e Reviewed-on: https://gem5-review.googlesource.com/2264 Maintainer: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com> Reviewed-by: Michael LeBeane <Michael.Lebeane@amd.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Pierre-Yves Péneau <pierre-yves.peneau@lirmm.fr>
135 lines
5.5 KiB
C++
135 lines
5.5 KiB
C++
/*
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* Copyright (c) 2013 ARM Limited
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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*
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* Copyright (c) 2003-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Steve Reinhardt
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*/
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#ifndef __ELF_OBJECT_HH__
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#define __ELF_OBJECT_HH__
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#include <set>
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#include <vector>
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#include "base/loader/object_file.hh"
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class ElfObject : public ObjectFile
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{
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protected:
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// The global definition of a gem5 "Section" is closest to ELF's segments.
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typedef ObjectFile::Section Segment;
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// These values are provided to a linux process by the kernel, so we
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// need to keep them around.
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Addr _programHeaderTable;
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uint16_t _programHeaderSize;
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uint16_t _programHeaderCount;
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std::set<std::string> sectionNames;
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ElfObject *interpreter;
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// An interpreter load bias is the location in the process address space
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// where the interpreter is chosen to reside. Typically, this is carved
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// out of the top of the mmap reserve section.
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Addr ldBias;
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// The interpreter is typically a relocatable shared library and will
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// have a default value of zero which means that it does not care where
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// it is placed. However, the loader can be compiled and linked so that
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// it does care and needs a specific entry point.
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bool relocate;
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// The ldMin and ldMax fields are required to know how large of an
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// area is required to map the interpreter.
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Addr ldMin;
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Addr ldMax;
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/// Helper functions for loadGlobalSymbols() and loadLocalSymbols().
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bool loadSomeSymbols(SymbolTable *symtab, int binding, Addr mask,
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Addr base, Addr offset);
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ElfObject(const std::string &_filename, size_t _len, uint8_t *_data,
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Arch _arch, OpSys _opSys);
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void getSections();
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bool sectionExists(std::string sec);
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std::vector<Segment> extraSegments;
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public:
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virtual ~ElfObject() {}
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bool loadSections(PortProxy& mem_proxy, Addr addr_mask = maxAddr,
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Addr offset = 0) override;
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virtual bool loadAllSymbols(SymbolTable *symtab, Addr base = 0,
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Addr offset = 0, Addr addr_mask = maxAddr)
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override;
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virtual bool loadGlobalSymbols(SymbolTable *symtab, Addr base = 0,
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Addr offset = 0, Addr addr_mask = maxAddr)
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override;
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virtual bool loadLocalSymbols(SymbolTable *symtab, Addr base = 0,
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Addr offset = 0, Addr addr_mask = maxAddr)
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override;
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virtual bool loadWeakSymbols(SymbolTable *symtab, Addr base = 0,
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Addr offset = 0, Addr addr_mask = maxAddr)
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override;
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virtual ObjectFile *getInterpreter() const override
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{ return interpreter; }
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virtual Addr bias() const override { return ldBias; }
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virtual bool relocatable() const override { return relocate; }
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virtual Addr mapSize() const override { return ldMax - ldMin; }
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virtual void updateBias(Addr bias_addr) override;
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virtual bool hasTLS() override { return sectionExists(".tbss"); }
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static ObjectFile *tryFile(const std::string &fname,
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size_t len, uint8_t *data,
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bool skip_interp_check = false);
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Addr programHeaderTable() {return _programHeaderTable;}
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uint16_t programHeaderSize() {return _programHeaderSize;}
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uint16_t programHeaderCount() {return _programHeaderCount;}
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};
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#endif // __ELF_OBJECT_HH__
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