156 lines
4.7 KiB
C
156 lines
4.7 KiB
C
/*
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32.fsize.c - implementation of the elf{32,64}_fsize(3) functions.
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Copyright (C) 1995 - 2001 Michael Riepe
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <private.h>
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#include <ext_types.h>
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#ifndef lint
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static const char rcsid[] = "@(#) $Id: 32.fsize.c,v 1.13 2008/05/23 08:15:33 michael Exp $";
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#endif /* lint */
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const size_t
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_elf_fmsize[2][EV_CURRENT - EV_NONE][ELF_T_NUM][2] = {
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/* ELFCLASS32 */
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{
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/* version 1 */
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{
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{ sizeof(unsigned char), sizeof(unsigned char) },
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{ sizeof(Elf32_Addr), sizeof(__ext_Elf32_Addr) },
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{ sizeof(Elf32_Dyn), sizeof(__ext_Elf32_Dyn) },
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{ sizeof(Elf32_Ehdr), sizeof(__ext_Elf32_Ehdr) },
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{ sizeof(Elf32_Half), sizeof(__ext_Elf32_Half) },
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{ sizeof(Elf32_Off), sizeof(__ext_Elf32_Off) },
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{ sizeof(Elf32_Phdr), sizeof(__ext_Elf32_Phdr) },
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{ sizeof(Elf32_Rela), sizeof(__ext_Elf32_Rela) },
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{ sizeof(Elf32_Rel), sizeof(__ext_Elf32_Rel) },
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{ sizeof(Elf32_Shdr), sizeof(__ext_Elf32_Shdr) },
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{ sizeof(Elf32_Sword), sizeof(__ext_Elf32_Sword) },
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{ sizeof(Elf32_Sym), sizeof(__ext_Elf32_Sym) },
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{ sizeof(Elf32_Word), sizeof(__ext_Elf32_Word) },
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{ 0, 0 }, /* there is no Elf32_Sxword */
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{ 0, 0 }, /* there is no Elf32_Xword */
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/* XXX: check Solaris values */
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{ 0, 0 }, /* Elf32_Verdef/Verdaux size varies */
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{ 0, 0 }, /* Elf32_Verneed/Vernaux size varies */
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},
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},
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#if __LIBELF64
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/* ELFCLASS64 */
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{
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/* version 1 */
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{
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{ sizeof(unsigned char), sizeof(unsigned char) },
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{ sizeof(Elf64_Addr), sizeof(__ext_Elf64_Addr) },
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{ sizeof(Elf64_Dyn), sizeof(__ext_Elf64_Dyn) },
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{ sizeof(Elf64_Ehdr), sizeof(__ext_Elf64_Ehdr) },
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{ sizeof(Elf64_Half), sizeof(__ext_Elf64_Half) },
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{ sizeof(Elf64_Off), sizeof(__ext_Elf64_Off) },
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{ sizeof(Elf64_Phdr), sizeof(__ext_Elf64_Phdr) },
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{ sizeof(Elf64_Rela), sizeof(__ext_Elf64_Rela) },
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{ sizeof(Elf64_Rel), sizeof(__ext_Elf64_Rel) },
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{ sizeof(Elf64_Shdr), sizeof(__ext_Elf64_Shdr) },
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{ sizeof(Elf64_Sword), sizeof(__ext_Elf64_Sword) },
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{ sizeof(Elf64_Sym), sizeof(__ext_Elf64_Sym) },
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{ sizeof(Elf64_Word), sizeof(__ext_Elf64_Word) },
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{ sizeof(Elf64_Sxword), sizeof(__ext_Elf64_Sxword) },
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{ sizeof(Elf64_Xword), sizeof(__ext_Elf64_Xword) },
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/* XXX: check Solaris values */
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{ 0, 0 }, /* Elf64_Verdef/Verdaux size varies */
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{ 0, 0 }, /* Elf64_Verneed/Vernaux size varies */
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},
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},
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#endif /* __LIBELF64 */
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};
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static size_t
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_elf_fsize(unsigned cls, Elf_Type type, unsigned ver) {
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size_t n = 0;
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if (!valid_version(ver)) {
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seterr(ERROR_UNKNOWN_VERSION);
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}
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else if (!valid_type(type)) {
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seterr(ERROR_UNKNOWN_TYPE);
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}
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else if (!(n = _fsize(cls, ver, type))) {
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seterr(ERROR_UNKNOWN_TYPE);
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}
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return n;
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}
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size_t
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elf32_fsize(Elf_Type type, size_t count, unsigned ver) {
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return count * _elf_fsize(ELFCLASS32, type, ver);
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}
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#if __LIBELF64
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size_t
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elf64_fsize(Elf_Type type, size_t count, unsigned ver) {
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return count * _elf_fsize(ELFCLASS64, type, ver);
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}
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size_t
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gelf_fsize(Elf *elf, Elf_Type type, size_t count, unsigned ver) {
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if (elf) {
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if (elf->e_kind != ELF_K_ELF) {
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seterr(ERROR_NOTELF);
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}
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else if (valid_class(elf->e_class)) {
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return count * _elf_fsize(elf->e_class, type, ver);
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}
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else {
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seterr(ERROR_UNKNOWN_CLASS);
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}
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}
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return 0;
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}
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/*
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* Extension: report memory size
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*/
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size_t
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gelf_msize(Elf *elf, Elf_Type type, size_t count, unsigned ver) {
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size_t n;
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if (elf) {
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if (elf->e_kind != ELF_K_ELF) {
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seterr(ERROR_NOTELF);
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}
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else if (!valid_class(elf->e_class)) {
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seterr(ERROR_UNKNOWN_CLASS);
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}
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else if (!valid_version(ver)) {
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seterr(ERROR_UNKNOWN_VERSION);
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}
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else if (!valid_type(type)) {
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seterr(ERROR_UNKNOWN_TYPE);
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}
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else if (!(n = _msize(elf->e_class, ver, type))) {
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seterr(ERROR_UNKNOWN_TYPE);
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}
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else {
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return count * n;
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}
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}
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return 0;
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}
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#endif /* __LIBELF64 */
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