5113f6f70
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kernel add
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/*
* Copyright (C) Paul Mackerras 1997.
*
* Updates for PPC64 by Todd Inglett, Dave Engebretsen & Peter Bergner.
*
* 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.
*/
#include <stdarg.h>
#include <stddef.h>
#include "elf.h"
#include "page.h"
#include "string.h"
#include "stdio.h"
int parse_elf64(void *hdr, struct elf_info *info)
{
Elf64_Ehdr *elf64 = hdr;
Elf64_Phdr *elf64ph;
unsigned int i;
if (!(elf64->e_ident[EI_MAG0] == ELFMAG0 &&
elf64->e_ident[EI_MAG1] == ELFMAG1 &&
elf64->e_ident[EI_MAG2] == ELFMAG2 &&
elf64->e_ident[EI_MAG3] == ELFMAG3 &&
elf64->e_ident[EI_CLASS] == ELFCLASS64 &&
#ifdef __LITTLE_ENDIAN__
elf64->e_ident[EI_DATA] == ELFDATA2LSB &&
#else
elf64->e_ident[EI_DATA] == ELFDATA2MSB &&
#endif
(elf64->e_type == ET_EXEC ||
elf64->e_type == ET_DYN) &&
elf64->e_machine == EM_PPC64))
return 0;
elf64ph = (Elf64_Phdr *)((unsigned long)elf64 +
(unsigned long)elf64->e_phoff);
for (i = 0; i < (unsigned int)elf64->e_phnum; i++, elf64ph++)
if (elf64ph->p_type == PT_LOAD)
break;
if (i >= (unsigned int)elf64->e_phnum)
return 0;
info->loadsize = (unsigned long)elf64ph->p_filesz;
info->memsize = (unsigned long)elf64ph->p_memsz;
info->elfoffset = (unsigned long)elf64ph->p_offset;
return 1;
}
int parse_elf32(void *hdr, struct elf_info *info)
{
Elf32_Ehdr *elf32 = hdr;
Elf32_Phdr *elf32ph;
unsigned int i;
if (!(elf32->e_ident[EI_MAG0] == ELFMAG0 &&
elf32->e_ident[EI_MAG1] == ELFMAG1 &&
elf32->e_ident[EI_MAG2] == ELFMAG2 &&
elf32->e_ident[EI_MAG3] == ELFMAG3 &&
elf32->e_ident[EI_CLASS] == ELFCLASS32 &&
elf32->e_ident[EI_DATA] == ELFDATA2MSB &&
(elf32->e_type == ET_EXEC ||
elf32->e_type == ET_DYN) &&
elf32->e_machine == EM_PPC))
return 0;
elf32ph = (Elf32_Phdr *) ((unsigned long)elf32 + elf32->e_phoff);
for (i = 0; i < elf32->e_phnum; i++, elf32ph++)
if (elf32ph->p_type == PT_LOAD)
break;
if (i >= elf32->e_phnum)
return 0;
info->loadsize = elf32ph->p_filesz;
info->memsize = elf32ph->p_memsz;
info->elfoffset = elf32ph->p_offset;
return 1;
}
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