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/*
* HT Editor
* htelf.h
*
* Copyright (C) 1999, 2000, 2001 Stefan Weyergraf (stefan@weyergraf.de)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __HTELF_H__
#define __HTELF_H__
#include "elfstruc.h"
#include "formats.h"
#include "htanaly.h"
#include "htendian.h"
#include "htformat.h"
#include "relfile.h"
#define DESC_ELF "elf"
#define DESC_ELF_HEADER "elf/header"
#define DESC_ELF_SECTION_HEADERS "elf/section headers"
#define DESC_ELF_PROGRAM_HEADERS "elf/program headers"
#define DESC_ELF_SYMTAB "elf/symbol table %s (%d)"
#define DESC_ELF_RELOCTAB "elf/relocation table %s (%d)"
#define DESC_ELF_IMAGE "elf/image"
#define ATOM_ELF_CLASS 0x454c4600
#define ATOM_ELF_CLASS_STR "454c4600"
#define ATOM_ELF_DATA 0x454c4601
#define ATOM_ELF_DATA_STR "454c4601"
#define ATOM_ELF_OS_ABI 0x454c4602
#define ATOM_ELF_OS_ABI_STR "454c4602"
#define ATOM_ELF_TYPE 0x454c4603
#define ATOM_ELF_TYPE_STR "454c4603"
#define ATOM_ELF_MACHINE 0x454c4604
#define ATOM_ELF_MACHINE_STR "454c4604"
#define ATOM_ELF_SH_TYPE 0x454c4605
#define ATOM_ELF_SH_TYPE_STR "454c4605"
#define ATOM_ELF_SH_FLAGS 0x454c4606
#define ATOM_ELF_SH_FLAGS_STR "454c4606"
#define ATOM_ELF_PH_TYPE 0x454c4607
#define ATOM_ELF_PH_TYPE_STR "454c4607"
#define ATOM_ELF_PH_FLAGS 0x454c4608
#define ATOM_ELF_PH_FLAGS_STR "454c4608"
#define ATOM_ELF_ST_BIND 0x454c4609
#define ATOM_ELF_ST_BIND_STR "454c4609"
#define ATOM_ELF_ST_TYPE 0x454c460a
#define ATOM_ELF_ST_TYPE_STR "454c460a"
#define ATOM_ELF_R_386_TYPE 0x454c460b
#define ATOM_ELF_R_386_TYPE_STR "454c460b"
extern format_viewer_if htelf_if;
struct elf_section_headers {
UINT count;
union {
ELF_SECTION_HEADER32 *sheaders32;
ELF_SECTION_HEADER64 *sheaders64;
};
};
union elf_section_header {
ELF_SECTION_HEADER32 sheaders32;
ELF_SECTION_HEADER64 sheaders64;
};
struct elf_program_headers {
UINT count;
union {
ELF_PROGRAM_HEADER32 *pheaders32;
ELF_PROGRAM_HEADER64 *pheaders64;
};
};
struct ht_elf_reloc_section {
elf32_addr address;
UINT reloc_shidx;
};
struct ht_elf_shared_data {
FILEOFS header_ofs;
ELF_HEADER ident;
endianess byte_order;
union {
ELF_HEADER32 header32;
ELF_HEADER64 header64;
};
elf_section_headers sheaders;
char **shnames;
elf_program_headers pheaders;
UINT symtables;
UINT reloctables;
ht_format_viewer *v_image;
ht_elf_reloc_section *htrelocs;
UINT fake_undefined_section;
};
/*
* CLASS ht_elf_aviewer
*/
class ht_elf_aviewer: public ht_aviewer {
public:
ht_elf_shared_data *elf_shared;
ht_streamfile *file;
void init(bounds *b, char *desc, int caps, ht_streamfile *file, ht_format_group *format_group, analyser *Analyser, ht_elf_shared_data *elf_shared);
virtual void set_analyser(analyser *a);
};
/*
* CLASS ht_elf
*/
class ht_elf: public ht_format_group {
protected:
bool loc_enum;
/* new */
void auto_relocate();
void fake_undefined_symbols();
UINT find_reloc_section_for(UINT si);
void relocate_section(ht_reloc_file *f, UINT si, UINT rsi, elf32_addr a);
public:
void init(bounds *b, ht_streamfile *file, format_viewer_if **ifs, ht_format_group *format_group, FILEOFS header_ofs);
virtual void done();
/* overwritten */
virtual void loc_enum_start();
virtual bool loc_enum_next(ht_format_loc *loc);
};
/*
* CLASS ht_elf32_reloc_entry
*/
class ht_elf32_reloc_entry: public ht_data {
public:
UINT type;
union {
dword r_32;
dword r_pc32;
} relocs;
ht_elf32_reloc_entry(UINT symtabidx, elf32_addr offset, UINT type, UINT symbolidx, elf32_addr addend, ht_elf_shared_data *data, ht_streamfile *file);
};
/*
* CLASS ht_elf32_reloc_file
*/
class ht_elf32_reloc_file: public ht_reloc_file {
protected:
ht_elf_shared_data *data;
/* overwritten */
virtual void reloc_apply(ht_data *reloc, byte *data);
virtual void reloc_unapply(ht_data *reloc, byte *data);
public:
void init(ht_streamfile *streamfile, bool own_streamfile, ht_elf_shared_data *data);
};
bool elf_phys_and_mem_section(elf_section_header *s, UINT elfclass);
bool elf_valid_section(elf_section_header *s, UINT elfclass);
bool elf_addr_to_section(elf_section_headers *section_headers, UINT elfclass, ADDR addr, int *section);
bool elf_addr_to_ofs(elf_section_headers *section_headers, UINT elfclass, ADDR addr, dword *ofs);
bool elf_addr_is_valid(elf_section_headers *section_headers, UINT elfclass, ADDR addr);
//bool elf_addr_is_physical(elf_section_headers *section_headers, UINT elfclass, ADDR addr);
bool elf_ofs_to_addr(elf_section_headers *section_headers, UINT elfclass, dword ofs, ADDR *addr);
bool elf_ofs_to_section(elf_section_headers *section_headers, UINT elfclass, dword ofs, ADDR *section);
//bool elf_ofs_to_addr_and_section(elf_section_headers *section_headers, UINT elfclass, dword ofs, ADDR *addr, ADDR *section);
#endif /* !__HTELF_H__ */
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