1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/* ELF support for BFD.
Copyright (C) 1991 Free Software Foundation, Inc.
Written by Fred Fish @ Cygnus Support, from information published
in "UNIX System V Release 4, Programmers Guide: ANSI C and
Programming Support Tools".
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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. */
/* This file is part of ELF support for BFD, and contains the portions
that describe how ELF is represented internally in the BFD library.
I.E. it describes the in-memory representation of ELF. It requires
the elf-common.h file which contains the portions that are common to
both the internal and external representations. */
/* Types used by various structures, functions, etc. */
typedef unsigned long Elf_Addr; /* Unsigned program address */
typedef unsigned long Elf_Off; /* Unsigned file offset */
typedef long Elf_Sword; /* Signed large integer */
typedef unsigned long Elf_Word; /* Unsigned large integer */
typedef unsigned short Elf_Half; /* Unsigned medium integer */
typedef unsigned char Elf_Char; /* Unsigned tiny integer */
/* ELF Header */
#define EI_NIDENT 16 /* Size of e_ident[] */
typedef struct {
unsigned char e_ident[EI_NIDENT]; /* ELF "magic number" */
Elf_Half e_type; /* Identifies object file type */
Elf_Half e_machine; /* Specifies required architecture */
Elf_Word e_version; /* Identifies object file version */
Elf_Addr e_entry; /* Entry point virtual address */
Elf_Off e_phoff; /* Program header table file offset */
Elf_Off e_shoff; /* Section header table file offset */
Elf_Word e_flags; /* Processor-specific flags */
Elf_Half e_ehsize; /* ELF header size in bytes */
Elf_Half e_phentsize; /* Program header table entry size */
Elf_Half e_phnum; /* Program header table entry count */
Elf_Half e_shentsize; /* Section header table entry size */
Elf_Half e_shnum; /* Section header table entry count */
Elf_Half e_shstrndx; /* Section header string table index */
} Elf_Internal_Ehdr;
/* Program header */
typedef struct {
Elf_Word p_type; /* Identifies program segment type */
Elf_Off p_offset; /* Segment file offset */
Elf_Addr p_vaddr; /* Segment virtual address */
Elf_Addr p_paddr; /* Segment physical address */
Elf_Word p_filesz; /* Segment size in file */
Elf_Word p_memsz; /* Segment size in memory */
Elf_Word p_flags; /* Segment flags */
Elf_Word p_align; /* Segment alignment, file & memory */
} Elf_Internal_Phdr;
/* Section header */
typedef struct {
Elf_Word sh_name; /* Section name, index in string tbl */
Elf_Word sh_type; /* Type of section */
Elf_Word sh_flags; /* Miscellaneous section attributes */
Elf_Addr sh_addr; /* Section virtual addr at execution */
Elf_Off sh_offset; /* Section file offset */
Elf_Word sh_size; /* Size of section in bytes */
Elf_Word sh_link; /* Index of another section */
Elf_Word sh_info; /* Additional section information */
Elf_Word sh_addralign; /* Section alignment */
Elf_Word sh_entsize; /* Entry size if section holds table */
} Elf_Internal_Shdr;
/* Symbol table entry */
typedef struct {
Elf_Word st_name; /* Symbol name, index in string tbl */
Elf_Addr st_value; /* Value of the symbol */
Elf_Word st_size; /* Associated symbol size */
Elf_Char st_info; /* Type and binding attributes */
Elf_Char st_other; /* No defined meaning, 0 */
Elf_Half st_shndx; /* Associated section index */
} Elf_Internal_Sym;
/* Note segments */
typedef struct {
Elf_Word namesz; /* Size of entry's owner string */
Elf_Word descsz; /* Size of the note descriptor */
Elf_Word type; /* Interpretation of the descriptor */
char name[1]; /* Start of the name+desc data */
} Elf_Internal_Note;
|
