| Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 1 | /* Return the size of an object file type. |
| 2 | Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. |
| 3 | Written by Ulrich Drepper <drepper@redhat.com>, 1998. |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation, version 2. |
| 8 | |
| 9 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | GNU General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License |
| 15 | along with this program; if not, write to the Free Software Foundation, |
| 16 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 17 | |
| 18 | #ifdef HAVE_CONFIG_H |
| 19 | # include <config.h> |
| 20 | #endif |
| 21 | |
| 22 | #include <gelf.h> |
| 23 | #include <stddef.h> |
| 24 | |
| 25 | #include "libelfP.h" |
| 26 | |
| 27 | |
| 28 | /* These are the sizes for all the known types. */ |
| 29 | const size_t __libelf_type_sizes[EV_NUM - 1][ELFCLASSNUM - 1][ELF_T_NUM] = |
| 30 | { |
| 31 | /* We have no entry for EV_NONE siince we have to set an error. */ |
| 32 | [EV_CURRENT - 1] = { |
| 33 | [ELFCLASS32 - 1] = { |
| 34 | #define TYPE_SIZES(LIBELFBITS) \ |
| 35 | [ELF_T_ADDR] = ELFW2(LIBELFBITS, FSZ_ADDR), \ |
| 36 | [ELF_T_OFF] = ELFW2(LIBELFBITS, FSZ_OFF), \ |
| 37 | [ELF_T_BYTE] = 1, \ |
| 38 | [ELF_T_HALF] = ELFW2(LIBELFBITS, FSZ_HALF), \ |
| 39 | [ELF_T_WORD] = ELFW2(LIBELFBITS, FSZ_WORD), \ |
| 40 | [ELF_T_SWORD] = ELFW2(LIBELFBITS, FSZ_SWORD), \ |
| 41 | [ELF_T_XWORD] = ELFW2(LIBELFBITS, FSZ_XWORD), \ |
| 42 | [ELF_T_SXWORD] = ELFW2(LIBELFBITS, FSZ_SXWORD), \ |
| 43 | [ELF_T_EHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Ehdr)), \ |
| 44 | [ELF_T_SHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Shdr)), \ |
| 45 | [ELF_T_SYM] = sizeof (ElfW2(LIBELFBITS, Ext_Sym)), \ |
| 46 | [ELF_T_REL] = sizeof (ElfW2(LIBELFBITS, Ext_Rel)), \ |
| 47 | [ELF_T_RELA] = sizeof (ElfW2(LIBELFBITS, Ext_Rela)), \ |
| 48 | [ELF_T_PHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Phdr)), \ |
| 49 | [ELF_T_DYN] = sizeof (ElfW2(LIBELFBITS, Ext_Dyn)), \ |
| 50 | [ELF_T_VDEF] = sizeof (ElfW2(LIBELFBITS, Ext_Verdef)), \ |
| 51 | [ELF_T_VDAUX] = sizeof (ElfW2(LIBELFBITS, Ext_Verdaux)), \ |
| 52 | [ELF_T_VNEED] = sizeof (ElfW2(LIBELFBITS, Ext_Verneed)), \ |
| 53 | [ELF_T_VNAUX] = sizeof (ElfW2(LIBELFBITS, Ext_Vernaux)), \ |
| 54 | [ELF_T_NHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Nhdr)), \ |
| 55 | [ELF_T_SYMINFO] = sizeof (ElfW2(LIBELFBITS, Ext_Syminfo)), \ |
| 56 | [ELF_T_MOVE] = sizeof (ElfW2(LIBELFBITS, Ext_Move)) |
| 57 | TYPE_SIZES (32) |
| 58 | }, |
| 59 | [ELFCLASS64 - 1] = { |
| 60 | TYPE_SIZES (64) |
| 61 | } |
| 62 | } |
| 63 | }; |
| 64 | |
| 65 | |
| 66 | size_t |
| 67 | gelf_fsize (elf, type, count, version) |
| 68 | Elf *elf; |
| 69 | Elf_Type type; |
| 70 | size_t count; |
| 71 | unsigned int version; |
| 72 | { |
| 73 | /* We do not have differences between file and memory sizes. Better |
| 74 | not since otherwise `mmap' would not work. */ |
| 75 | if (elf == NULL) |
| 76 | return 0; |
| 77 | |
| 78 | if (version == EV_NONE || version >= EV_NUM) |
| 79 | { |
| 80 | __libelf_seterrno (ELF_E_UNKNOWN_VERSION); |
| 81 | return 0; |
| 82 | } |
| 83 | |
| 84 | if (type >= ELF_T_NUM) |
| 85 | { |
| 86 | __libelf_seterrno (ELF_E_UNKNOWN_TYPE); |
| 87 | return 0; |
| 88 | } |
| 89 | |
| 90 | #if EV_NUM != 2 |
| 91 | return count * __libelf_type_sizes[version - 1][elf->class - 1][type]; |
| 92 | #else |
| 93 | return count * __libelf_type_sizes[0][elf->class - 1][type]; |
| 94 | #endif |
| 95 | } |
| 96 | INTDEF(gelf_fsize) |