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Diffstat (limited to 'src/base/loader/object_file.hh')
-rw-r--r-- | src/base/loader/object_file.hh | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/base/loader/object_file.hh b/src/base/loader/object_file.hh new file mode 100644 index 000000000..79fa394c6 --- /dev/null +++ b/src/base/loader/object_file.hh @@ -0,0 +1,122 @@ +/* + * Copyright (c) 2002-2004 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Nathan Binkert + * Steve Reinhardt + */ + +#ifndef __OBJECT_FILE_HH__ +#define __OBJECT_FILE_HH__ + +#include <limits> +#include <string> + +#include "sim/host.hh" // for Addr + +class Port; +class SymbolTable; + +class ObjectFile +{ + public: + + enum Arch { + UnknownArch, + Alpha, + SPARC, + Mips + }; + + enum OpSys { + UnknownOpSys, + Tru64, + Linux, + Solaris + }; + + protected: + const std::string filename; + int descriptor; + uint8_t *fileData; + size_t len; + + Arch arch; + OpSys opSys; + + ObjectFile(const std::string &_filename, int _fd, + size_t _len, uint8_t *_data, + Arch _arch, OpSys _opSys); + + public: + virtual ~ObjectFile(); + + void close(); + + virtual bool loadSections(Port *memPort, Addr addrMask = + std::numeric_limits<Addr>::max()); + virtual bool loadGlobalSymbols(SymbolTable *symtab) = 0; + virtual bool loadLocalSymbols(SymbolTable *symtab) = 0; + + Arch getArch() const { return arch; } + OpSys getOpSys() const { return opSys; } + + protected: + + struct Section { + Addr baseAddr; + uint8_t *fileImage; + size_t size; + }; + + Addr entry; + Addr globalPtr; + + Section text; + Section data; + Section bss; + + bool loadSection(Section *sec, Port *memPort, Addr addrMask); + void setGlobalPointer(Addr global_ptr) { globalPtr = global_ptr; } + + public: + Addr entryPoint() const { return entry; } + + Addr globalPointer() const { return globalPtr; } + + Addr textBase() const { return text.baseAddr; } + Addr dataBase() const { return data.baseAddr; } + Addr bssBase() const { return bss.baseAddr; } + + size_t textSize() const { return text.size; } + size_t dataSize() const { return data.size; } + size_t bssSize() const { return bss.size; } +}; + +ObjectFile *createObjectFile(const std::string &fname); + + +#endif // __OBJECT_FILE_HH__ |