gem5/base/loader/elf_object.hh
Steve Reinhardt 9f2aae4e28 Fixes and cleanup to elf loader code.
base/loader/elf_object.cc:
    - Use program header instead of section headers for loading.
    The old code doesn't work for Alpha/Linux user binaries.

    - Deal properly with single-segment ELF executables (e.g. kernels)...
    haven't tested this but it looks like it matches the functionality
    of the patch the L4::Pistachio guys sent.

    - Factor load symbol code into one common function.

    - Some formatting to match style conventions.

    - Only include libelf stuff in .cc file, not .hh.
base/loader/elf_object.hh:
    - Use program header instead of section headers for loading.
    The old code doesn't work for Alpha/Linux user binaries.

    - Factor load symbol code into one common function.

    - Only include libelf stuff in .cc file, not .hh.

--HG--
extra : convert_revision : 782062d09d43083b01e65cd645c941f49c27640a
2004-01-14 22:30:16 -08:00

60 lines
2.5 KiB
C++

/*
* Copyright (c) 2003 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.
*/
#ifndef __ELF_OBJECT_HH__
#define __ELF_OBJECT_HH__
#include "base/loader/object_file.hh"
class ElfObject : public ObjectFile
{
protected:
uint8_t *fileTextBits; //!< Pointer to file's text segment image
uint8_t *fileDataBits; //!< Pointer to file's data segment image
/// Helper functions for loadGlobalSymbols() and loadLocalSymbols().
bool loadSomeSymbols(SymbolTable *symtab, int binding);
ElfObject(const std::string &_filename, int _fd,
size_t _len, uint8_t *_data,
Arch _arch, OpSys _opSys);
public:
virtual ~ElfObject() {}
virtual bool loadSections(FunctionalMemory *mem,
bool loadPhys = false);
virtual bool loadGlobalSymbols(SymbolTable *symtab);
virtual bool loadLocalSymbols(SymbolTable *symtab);
static ObjectFile *tryFile(const std::string &fname, int fd,
size_t len, uint8_t *data);
};
#endif // __ELF_OBJECT_HH__