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/*
32.fsize.c - implementation of the elf{32,64}_fsize(3) functions.
Copyright (C) 1995 - 2001 Michael Riepe <michael@stud.uni-hannover.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <private.h>
#include <ext_types.h>
#ifndef lint
static const char rcsid[] = "@(#) Id: 32.fsize.c,v 1.9 2001/10/05 19:05:25 michael Exp ";
#endif /* lint */
/*@-initsize@*/
const size_t
_elf_fmsize[2][EV_CURRENT - EV_NONE][ELF_T_NUM][2] = {
/* ELFCLASS32 */
{
/* version 1 */
{
{ sizeof(unsigned char), sizeof(unsigned char) },
{ sizeof(Elf32_Addr), sizeof(__ext_Elf32_Addr) },
{ sizeof(Elf32_Dyn), sizeof(__ext_Elf32_Dyn) },
{ sizeof(Elf32_Ehdr), sizeof(__ext_Elf32_Ehdr) },
{ sizeof(Elf32_Half), sizeof(__ext_Elf32_Half) },
{ sizeof(Elf32_Off), sizeof(__ext_Elf32_Off) },
{ sizeof(Elf32_Phdr), sizeof(__ext_Elf32_Phdr) },
{ sizeof(Elf32_Rela), sizeof(__ext_Elf32_Rela) },
{ sizeof(Elf32_Rel), sizeof(__ext_Elf32_Rel) },
{ sizeof(Elf32_Shdr), sizeof(__ext_Elf32_Shdr) },
{ sizeof(Elf32_Sword), sizeof(__ext_Elf32_Sword) },
{ sizeof(Elf32_Sym), sizeof(__ext_Elf32_Sym) },
{ sizeof(Elf32_Word), sizeof(__ext_Elf32_Word) },
{ 0, 0 }, /* there is no Elf32_Sxword */
{ 0, 0 }, /* there is no Elf32_Xword */
/* XXX: check Solaris values */
{ 0, 0 }, /* Elf32_Verdef/Verdaux size varies */
{ 0, 0 }, /* Elf32_Verneed/Vernaux size varies */
},
},
#if __LIBELF64
/* ELFCLASS64 */
{
/* version 1 */
{
{ sizeof(unsigned char), sizeof(unsigned char) },
{ sizeof(Elf64_Addr), sizeof(__ext_Elf64_Addr) },
{ sizeof(Elf64_Dyn), sizeof(__ext_Elf64_Dyn) },
{ sizeof(Elf64_Ehdr), sizeof(__ext_Elf64_Ehdr) },
{ sizeof(Elf64_Half), sizeof(__ext_Elf64_Half) },
{ sizeof(Elf64_Off), sizeof(__ext_Elf64_Off) },
{ sizeof(Elf64_Phdr), sizeof(__ext_Elf64_Phdr) },
{ sizeof(Elf64_Rela), sizeof(__ext_Elf64_Rela) },
{ sizeof(Elf64_Rel), sizeof(__ext_Elf64_Rel) },
{ sizeof(Elf64_Shdr), sizeof(__ext_Elf64_Shdr) },
{ sizeof(Elf64_Sword), sizeof(__ext_Elf64_Sword) },
{ sizeof(Elf64_Sym), sizeof(__ext_Elf64_Sym) },
{ sizeof(Elf64_Word), sizeof(__ext_Elf64_Word) },
{ sizeof(Elf64_Sxword), sizeof(__ext_Elf64_Sxword) },
{ sizeof(Elf64_Xword), sizeof(__ext_Elf64_Xword) },
/* XXX: check Solaris values */
{ 0, 0 }, /* Elf64_Verdef/Verdaux size varies */
{ 0, 0 }, /* Elf64_Verneed/Vernaux size varies */
},
},
#endif /* __LIBELF64 */
};
/*@=initsize@*/
static size_t
_elf_fsize(unsigned cls, Elf_Type type, unsigned ver)
/*@globals _elf_errno @*/
/*@modifies _elf_errno @*/
{
size_t n = 0;
if (!valid_version(ver)) {
seterr(ERROR_UNKNOWN_VERSION);
}
else if (!valid_type(type)) {
seterr(ERROR_UNKNOWN_TYPE);
}
/*@-boundsread@*/
else if (!(n = _fsize(cls, ver, type))) {
seterr(ERROR_UNKNOWN_TYPE);
}
/*@=boundsread@*/
return n;
}
size_t
elf32_fsize(Elf_Type type, size_t count, unsigned ver) {
return count * _elf_fsize(ELFCLASS32, type, ver);
}
#if __LIBELF64
size_t
elf64_fsize(Elf_Type type, size_t count, unsigned ver) {
return count * _elf_fsize(ELFCLASS64, type, ver);
}
size_t
gelf_fsize(Elf *elf, Elf_Type type, size_t count, unsigned ver) {
if (elf) {
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (valid_class(elf->e_class)) {
return count * _elf_fsize(elf->e_class, type, ver);
}
else {
seterr(ERROR_UNKNOWN_CLASS);
}
}
return 0;
}
/*
* Extension: report memory size
*/
size_t
gelf_msize(Elf *elf, Elf_Type type, size_t count, unsigned ver) {
size_t n;
if (elf) {
if (elf->e_kind != ELF_K_ELF) {
seterr(ERROR_NOTELF);
}
else if (!valid_class(elf->e_class)) {
seterr(ERROR_UNKNOWN_CLASS);
}
else if (!valid_version(ver)) {
seterr(ERROR_UNKNOWN_VERSION);
}
else if (!valid_type(type)) {
seterr(ERROR_UNKNOWN_TYPE);
}
/*@-boundsread@*/
else if (!(n = _msize(elf->e_class, ver, type))) {
seterr(ERROR_UNKNOWN_TYPE);
}
/*@=boundsread@*/
else {
return count * n;
}
}
return 0;
}
#endif /* __LIBELF64 */
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