b91cfc14bd
This adds byte order as an attribute for object files by introducing new members to the ObjectFile class. This is populated by the looking at the ELF headers. Change-Id: Ibe55699175cc0295e0c9d49bdbe02e580988bc4f Signed-off-by: Sandipan Das <sandipan@linux.ibm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/40939 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Daniel Carvalho <odanrc@yahoo.com.br> Tested-by: kokoro <noreply+kokoro@google.com>
139 lines
3.7 KiB
C++
139 lines
3.7 KiB
C++
/*
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* Copyright (c) 2002-2004 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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#ifndef __BASE_LOADER_OBJECT_FILE_HH__
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#define __BASE_LOADER_OBJECT_FILE_HH__
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#include <string>
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#include "base/compiler.hh"
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#include "base/loader/image_file.hh"
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#include "base/loader/image_file_data.hh"
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#include "base/loader/memory_image.hh"
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#include "base/loader/symtab.hh"
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#include "base/logging.hh"
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#include "base/types.hh"
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#include "enums/ByteOrder.hh"
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GEM5_DEPRECATED_NAMESPACE(Loader, loader);
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namespace loader
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{
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enum Arch
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{
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UnknownArch,
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SPARC64,
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SPARC32,
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Mips,
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X86_64,
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I386,
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Arm64,
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Arm,
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Thumb,
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Power,
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Riscv64,
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Riscv32
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};
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const char *archToString(Arch arch);
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enum OpSys
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{
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UnknownOpSys,
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Tru64,
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Linux,
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Solaris,
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LinuxArmOABI,
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FreeBSD
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};
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const char *opSysToString(OpSys op_sys);
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class SymbolTable;
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class ObjectFile : public ImageFile
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{
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protected:
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Arch arch = UnknownArch;
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OpSys opSys = UnknownOpSys;
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ByteOrder byteOrder = ByteOrder::little;
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SymbolTable _symtab;
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ObjectFile(ImageFileDataPtr ifd);
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public:
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virtual ~ObjectFile() {};
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virtual ObjectFile *getInterpreter() const { return nullptr; }
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virtual bool relocatable() const { return false; }
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virtual Addr
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mapSize() const
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{
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panic("mapSize() should only be called on relocatable objects\n");
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}
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virtual void
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updateBias(Addr bias_addr)
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{
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panic("updateBias() should only be called on relocatable objects\n");
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}
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virtual Addr bias() const { return 0; }
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virtual bool hasTLS() { return false; }
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Arch getArch() const { return arch; }
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OpSys getOpSys() const { return opSys; }
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ByteOrder getByteOrder() const { return byteOrder; }
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const SymbolTable &symtab() const { return _symtab; }
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protected:
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Addr entry = 0;
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public:
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Addr entryPoint() const { return entry; }
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};
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class ObjectFileFormat
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{
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protected:
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ObjectFileFormat();
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public:
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ObjectFileFormat(const ObjectFileFormat &) = delete;
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void operator=(const ObjectFileFormat &) = delete;
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virtual ObjectFile *load(ImageFileDataPtr data) = 0;
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};
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ObjectFile *createObjectFile(const std::string &fname, bool raw=false);
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} // namespace loader
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#endif // __BASE_LOADER_OBJECT_FILE_HH__
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