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 (at) 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) 97
