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88e68731 MG |
1 | /* |
2 | * Copyright (C) Paul Mackerras 1997. | |
3 | * | |
4 | * Updates for PPC64 by Todd Inglett, Dave Engebretsen & Peter Bergner. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | */ | |
11 | #include <stdarg.h> | |
12 | #include <stddef.h> | |
13 | #include "elf.h" | |
14 | #include "page.h" | |
15 | #include "string.h" | |
16 | #include "stdio.h" | |
17 | ||
18 | int parse_elf64(void *hdr, struct elf_info *info) | |
19 | { | |
20 | Elf64_Ehdr *elf64 = hdr; | |
21 | Elf64_Phdr *elf64ph; | |
22 | unsigned int i; | |
23 | ||
24 | if (!(elf64->e_ident[EI_MAG0] == ELFMAG0 && | |
25 | elf64->e_ident[EI_MAG1] == ELFMAG1 && | |
26 | elf64->e_ident[EI_MAG2] == ELFMAG2 && | |
27 | elf64->e_ident[EI_MAG3] == ELFMAG3 && | |
28 | elf64->e_ident[EI_CLASS] == ELFCLASS64 && | |
29 | elf64->e_ident[EI_DATA] == ELFDATA2MSB && | |
549e8152 PM |
30 | (elf64->e_type == ET_EXEC || |
31 | elf64->e_type == ET_DYN) && | |
88e68731 MG |
32 | elf64->e_machine == EM_PPC64)) |
33 | return 0; | |
34 | ||
35 | elf64ph = (Elf64_Phdr *)((unsigned long)elf64 + | |
36 | (unsigned long)elf64->e_phoff); | |
37 | for (i = 0; i < (unsigned int)elf64->e_phnum; i++, elf64ph++) | |
38 | if (elf64ph->p_type == PT_LOAD) | |
39 | break; | |
40 | if (i >= (unsigned int)elf64->e_phnum) | |
41 | return 0; | |
42 | ||
43 | info->loadsize = (unsigned long)elf64ph->p_filesz; | |
44 | info->memsize = (unsigned long)elf64ph->p_memsz; | |
45 | info->elfoffset = (unsigned long)elf64ph->p_offset; | |
46 | ||
47 | return 1; | |
48 | } | |
49 | ||
50 | int parse_elf32(void *hdr, struct elf_info *info) | |
51 | { | |
52 | Elf32_Ehdr *elf32 = hdr; | |
53 | Elf32_Phdr *elf32ph; | |
54 | unsigned int i; | |
55 | ||
56 | if (!(elf32->e_ident[EI_MAG0] == ELFMAG0 && | |
57 | elf32->e_ident[EI_MAG1] == ELFMAG1 && | |
58 | elf32->e_ident[EI_MAG2] == ELFMAG2 && | |
59 | elf32->e_ident[EI_MAG3] == ELFMAG3 && | |
60 | elf32->e_ident[EI_CLASS] == ELFCLASS32 && | |
61 | elf32->e_ident[EI_DATA] == ELFDATA2MSB && | |
549e8152 PM |
62 | (elf32->e_type == ET_EXEC || |
63 | elf32->e_type == ET_DYN) && | |
88e68731 MG |
64 | elf32->e_machine == EM_PPC)) |
65 | return 0; | |
66 | ||
67 | elf32ph = (Elf32_Phdr *) ((unsigned long)elf32 + elf32->e_phoff); | |
68 | for (i = 0; i < elf32->e_phnum; i++, elf32ph++) | |
69 | if (elf32ph->p_type == PT_LOAD) | |
70 | break; | |
71 | if (i >= elf32->e_phnum) | |
72 | return 0; | |
73 | ||
74 | info->loadsize = elf32ph->p_filesz; | |
75 | info->memsize = elf32ph->p_memsz; | |
76 | info->elfoffset = elf32ph->p_offset; | |
77 | return 1; | |
78 | } |