88e687313e
The ELF parsing routines local to arch/powerpc/boot/main.c are useful to other callers therefore move them to their own file. Signed-off-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/*
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* Copyright (C) Paul Mackerras 1997.
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*
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* Updates for PPC64 by Todd Inglett, Dave Engebretsen & Peter Bergner.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <stdarg.h>
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#include <stddef.h>
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#include "elf.h"
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#include "page.h"
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#include "string.h"
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#include "stdio.h"
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int parse_elf64(void *hdr, struct elf_info *info)
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{
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Elf64_Ehdr *elf64 = hdr;
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Elf64_Phdr *elf64ph;
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unsigned int i;
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if (!(elf64->e_ident[EI_MAG0] == ELFMAG0 &&
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elf64->e_ident[EI_MAG1] == ELFMAG1 &&
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elf64->e_ident[EI_MAG2] == ELFMAG2 &&
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elf64->e_ident[EI_MAG3] == ELFMAG3 &&
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elf64->e_ident[EI_CLASS] == ELFCLASS64 &&
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elf64->e_ident[EI_DATA] == ELFDATA2MSB &&
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elf64->e_type == ET_EXEC &&
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elf64->e_machine == EM_PPC64))
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return 0;
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elf64ph = (Elf64_Phdr *)((unsigned long)elf64 +
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(unsigned long)elf64->e_phoff);
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for (i = 0; i < (unsigned int)elf64->e_phnum; i++, elf64ph++)
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if (elf64ph->p_type == PT_LOAD)
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break;
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if (i >= (unsigned int)elf64->e_phnum)
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return 0;
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info->loadsize = (unsigned long)elf64ph->p_filesz;
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info->memsize = (unsigned long)elf64ph->p_memsz;
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info->elfoffset = (unsigned long)elf64ph->p_offset;
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return 1;
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}
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int parse_elf32(void *hdr, struct elf_info *info)
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{
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Elf32_Ehdr *elf32 = hdr;
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Elf32_Phdr *elf32ph;
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unsigned int i;
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if (!(elf32->e_ident[EI_MAG0] == ELFMAG0 &&
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elf32->e_ident[EI_MAG1] == ELFMAG1 &&
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elf32->e_ident[EI_MAG2] == ELFMAG2 &&
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elf32->e_ident[EI_MAG3] == ELFMAG3 &&
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elf32->e_ident[EI_CLASS] == ELFCLASS32 &&
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elf32->e_ident[EI_DATA] == ELFDATA2MSB &&
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elf32->e_type == ET_EXEC &&
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elf32->e_machine == EM_PPC))
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return 0;
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elf32ph = (Elf32_Phdr *) ((unsigned long)elf32 + elf32->e_phoff);
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for (i = 0; i < elf32->e_phnum; i++, elf32ph++)
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if (elf32ph->p_type == PT_LOAD)
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break;
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if (i >= elf32->e_phnum)
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return 0;
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info->loadsize = elf32ph->p_filesz;
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info->memsize = elf32ph->p_memsz;
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info->elfoffset = elf32ph->p_offset;
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return 1;
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}
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