Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/powerpc/boot/elf_util.c
10817 views
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	&&

30
	      (elf64->e_type            == ET_EXEC ||

31
	       elf64->e_type            == ET_DYN)	&&

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	&&

62
	      (elf32->e_type            == ET_EXEC ||

63
	       elf32->e_type            == ET_DYN)      &&

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
}

79


80