| Mark A. Greer | 88e6873 | 2007-03-27 15:29:50 -0700 | [diff] [blame] | 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 && |
| Cédric Le Goater | 002c39d | 2014-04-24 09:23:35 +0200 | [diff] [blame] | 29 | #ifdef __LITTLE_ENDIAN__ |
| 30 | elf64->e_ident[EI_DATA] == ELFDATA2LSB && |
| 31 | #else |
| Mark A. Greer | 88e6873 | 2007-03-27 15:29:50 -0700 | [diff] [blame] | 32 | elf64->e_ident[EI_DATA] == ELFDATA2MSB && |
| Cédric Le Goater | 002c39d | 2014-04-24 09:23:35 +0200 | [diff] [blame] | 33 | #endif |
| Paul Mackerras | 549e815 | 2008-08-30 11:43:47 +1000 | [diff] [blame] | 34 | (elf64->e_type == ET_EXEC || |
| 35 | elf64->e_type == ET_DYN) && |
| Mark A. Greer | 88e6873 | 2007-03-27 15:29:50 -0700 | [diff] [blame] | 36 | elf64->e_machine == EM_PPC64)) |
| 37 | return 0; |
| 38 | |
| 39 | elf64ph = (Elf64_Phdr *)((unsigned long)elf64 + |
| 40 | (unsigned long)elf64->e_phoff); |
| 41 | for (i = 0; i < (unsigned int)elf64->e_phnum; i++, elf64ph++) |
| 42 | if (elf64ph->p_type == PT_LOAD) |
| 43 | break; |
| 44 | if (i >= (unsigned int)elf64->e_phnum) |
| 45 | return 0; |
| 46 | |
| 47 | info->loadsize = (unsigned long)elf64ph->p_filesz; |
| 48 | info->memsize = (unsigned long)elf64ph->p_memsz; |
| 49 | info->elfoffset = (unsigned long)elf64ph->p_offset; |
| 50 | |
| 51 | return 1; |
| 52 | } |
| 53 | |
| 54 | int parse_elf32(void *hdr, struct elf_info *info) |
| 55 | { |
| 56 | Elf32_Ehdr *elf32 = hdr; |
| 57 | Elf32_Phdr *elf32ph; |
| 58 | unsigned int i; |
| 59 | |
| 60 | if (!(elf32->e_ident[EI_MAG0] == ELFMAG0 && |
| 61 | elf32->e_ident[EI_MAG1] == ELFMAG1 && |
| 62 | elf32->e_ident[EI_MAG2] == ELFMAG2 && |
| 63 | elf32->e_ident[EI_MAG3] == ELFMAG3 && |
| 64 | elf32->e_ident[EI_CLASS] == ELFCLASS32 && |
| 65 | elf32->e_ident[EI_DATA] == ELFDATA2MSB && |
| Paul Mackerras | 549e815 | 2008-08-30 11:43:47 +1000 | [diff] [blame] | 66 | (elf32->e_type == ET_EXEC || |
| 67 | elf32->e_type == ET_DYN) && |
| Mark A. Greer | 88e6873 | 2007-03-27 15:29:50 -0700 | [diff] [blame] | 68 | elf32->e_machine == EM_PPC)) |
| 69 | return 0; |
| 70 | |
| 71 | elf32ph = (Elf32_Phdr *) ((unsigned long)elf32 + elf32->e_phoff); |
| 72 | for (i = 0; i < elf32->e_phnum; i++, elf32ph++) |
| 73 | if (elf32ph->p_type == PT_LOAD) |
| 74 | break; |
| 75 | if (i >= elf32->e_phnum) |
| 76 | return 0; |
| 77 | |
| 78 | info->loadsize = elf32ph->p_filesz; |
| 79 | info->memsize = elf32ph->p_memsz; |
| 80 | info->elfoffset = elf32ph->p_offset; |
| 81 | return 1; |
| 82 | } |