612f8f074f
Note: AArch64 and AArch32 interworking is not supported. If you use an AArch64 kernel you are restricted to AArch64 user-mode binaries. This will be addressed in a later patch. Note: Virtualization is only supported in AArch32 mode. This will also be fixed in a later patch. Contributors: Giacomo Gabrielli (TrustZone, LPAE, system-level AArch64, AArch64 NEON, validation) Thomas Grocutt (AArch32 Virtualization, AArch64 FP, validation) Mbou Eyole (AArch64 NEON, validation) Ali Saidi (AArch64 Linux support, code integration, validation) Edmund Grimley-Evans (AArch64 FP) William Wang (AArch64 Linux support) Rene De Jong (AArch64 Linux support, performance opt.) Matt Horsnell (AArch64 MP, validation) Matt Evans (device models, code integration, validation) Chris Adeniyi-Jones (AArch64 syscall-emulation) Prakash Ramrakhyani (validation) Dam Sunwoo (validation) Chander Sudanthi (validation) Stephan Diestelhorst (validation) Andreas Hansson (code integration, performance opt.) Eric Van Hensbergen (performance opt.) Gabe Black
101 lines
4.1 KiB
C++
101 lines
4.1 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 "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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/// Helper functions for loadGlobalSymbols() and loadLocalSymbols().
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bool loadSomeSymbols(SymbolTable *symtab, int binding, Addr mask);
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ElfObject(const std::string &_filename, int _fd,
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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& memProxy,
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Addr addrMask = std::numeric_limits<Addr>::max(),
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Addr offset = 0);
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virtual bool loadGlobalSymbols(SymbolTable *symtab, Addr addrMask =
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std::numeric_limits<Addr>::max());
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virtual bool loadLocalSymbols(SymbolTable *symtab, Addr addrMask =
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std::numeric_limits<Addr>::max());
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virtual bool loadWeakSymbols(SymbolTable *symtab, Addr addrMask =
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std::numeric_limits<Addr>::max());
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virtual bool isDynamic() { return sectionExists(".interp"); }
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virtual bool hasTLS() { return sectionExists(".tbss"); }
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static ObjectFile *tryFile(const std::string &fname, int fd,
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size_t len, uint8_t *data);
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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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