blob: 1567a0c0f05c6639a96ce4947dfb9bdf23eda8fc [file] [log] [blame]
Mark A. Greer88e68732007-03-27 15:29:50 -07001/*
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
18int 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 &&
Paul Mackerras549e8152008-08-30 11:43:47 +100030 (elf64->e_type == ET_EXEC ||
31 elf64->e_type == ET_DYN) &&
Mark A. Greer88e68732007-03-27 15:29:50 -070032 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
50int 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 &&
Paul Mackerras549e8152008-08-30 11:43:47 +100062 (elf32->e_type == ET_EXEC ||
63 elf32->e_type == ET_DYN) &&
Mark A. Greer88e68732007-03-27 15:29:50 -070064 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}