5936c79ba0
SE mode now has a port that goes to whatever toplevel mem object the
CPU sees that does the appropriate translation for syscall emulation
SConscript:
translating port is a syscall emu only source
arch/alpha/system.cc:
base/loader/object_file.cc:
base/loader/object_file.hh:
Use the new functional port to write the binaries into memory
cpu/cpu_exec_context.cc:
cpu/cpu_exec_context.hh:
cpu/simple/cpu.cc:
We aren't always going to be writing straight to memory with syscalls
support writing to a cache
mem/port.hh:
Add a simple unidirectional functional port that panics on any incoming requests
mem/translating_port.hh:
make translating port inherit from the simple port
sim/system.cc:
sim/system.hh:
Add a functional port that is used to load the original binaries
--HG--
extra : convert_revision : 9096866d0b23e3aceea68394abb76e63c0f8fd8d
120 lines
3.4 KiB
C++
120 lines
3.4 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 __OBJECT_FILE_HH__
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#define __OBJECT_FILE_HH__
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#include <limits>
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#include <string>
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#include "sim/host.hh" // for Addr
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class Port;
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class SymbolTable;
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class ObjectFile
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{
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public:
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enum Arch {
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UnknownArch,
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Alpha,
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SPARC,
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Mips
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};
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enum OpSys {
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UnknownOpSys,
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Tru64,
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Linux,
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Solaris
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};
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protected:
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const std::string filename;
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int descriptor;
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uint8_t *fileData;
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size_t len;
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Arch arch;
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OpSys opSys;
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ObjectFile(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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public:
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virtual ~ObjectFile();
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void close();
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virtual bool loadSections(Port *memPort, Addr addrMask =
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std::numeric_limits<Addr>::max());
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virtual bool loadGlobalSymbols(SymbolTable *symtab) = 0;
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virtual bool loadLocalSymbols(SymbolTable *symtab) = 0;
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Arch getArch() const { return arch; }
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OpSys getOpSys() const { return opSys; }
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protected:
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struct Section {
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Addr baseAddr;
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uint8_t *fileImage;
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size_t size;
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};
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Addr entry;
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Addr globalPtr;
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Section text;
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Section data;
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Section bss;
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bool loadSection(Section *sec, Port *memPort, Addr addrMask);
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void setGlobalPointer(Addr global_ptr) { globalPtr = global_ptr; }
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public:
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Addr entryPoint() const { return entry; }
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Addr globalPointer() const { return globalPtr; }
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Addr textBase() const { return text.baseAddr; }
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Addr dataBase() const { return data.baseAddr; }
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Addr bssBase() const { return bss.baseAddr; }
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size_t textSize() const { return text.size; }
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size_t dataSize() const { return data.size; }
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size_t bssSize() const { return bss.size; }
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};
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ObjectFile *createObjectFile(const std::string &fname);
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#endif // __OBJECT_FILE_HH__
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