6ee86bf497
A memory image can be described by an object file, but an object file is more than a memory image. Also, it makes sense to manipulate a memory image to, for instance, change how it's loaded into memory. That takes on larger implications (relocations, the entry point, symbols, etc.) when talking about the whole object file, and also modifies aspects which may not need to change. For instance if an image needs to be loaded into memory at addresses different from what's in the object file, but other things like symbols need to stay unmodified. Change-Id: Ia360405ffb2c1c48e0cc201ac0a0764357996a54 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/21466 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Brandon Potter <Brandon.Potter@amd.com> Maintainer: Gabe Black <gabeblack@google.com>
68 lines
2.7 KiB
C++
68 lines
2.7 KiB
C++
/*
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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 __ECOFF_OBJECT_HH__
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#define __ECOFF_OBJECT_HH__
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#include "base/loader/object_file.hh"
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// forward decls: avoid including exec_ecoff.h here
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struct ecoff_exechdr;
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struct ecoff_filehdr;
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struct ecoff_aouthdr;
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class EcoffObject : public ObjectFile
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{
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protected:
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ecoff_exechdr *execHdr;
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ecoff_filehdr *fileHdr;
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ecoff_aouthdr *aoutHdr;
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EcoffObject(const std::string &_filename, size_t _len, uint8_t *_data,
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Arch _arch, OpSys _opSys);
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public:
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virtual ~EcoffObject() {}
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MemoryImage buildImage() const override;
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bool loadAllSymbols(SymbolTable *symtab, Addr base=0,
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Addr offset=0, Addr addr_mask=MaxAddr) override;
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bool loadGlobalSymbols(SymbolTable *symtab, Addr base=0,
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Addr offset=0, Addr addr_mask=MaxAddr) override;
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bool loadLocalSymbols(SymbolTable *symtab, Addr base=0,
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Addr offset=0, Addr addr_mask=MaxAddr) override;
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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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};
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#endif // __ECOFF_OBJECT_HH__
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