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Diffstat (limited to 'lib/32.fsize.c')
| -rw-r--r-- | lib/32.fsize.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/lib/32.fsize.c b/lib/32.fsize.c new file mode 100644 index 0000000..1815fa1 --- /dev/null +++ b/lib/32.fsize.c @@ -0,0 +1,155 @@ +/* +32.fsize.c - implementation of the elf{32,64}_fsize(3) functions. +Copyright (C) 1995 - 2001 Michael Riepe + +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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA +*/ + +#include <private.h> +#include <ext_types.h> + +#ifndef lint +static const char rcsid[] = "@(#) $Id: 32.fsize.c,v 1.13 2008/05/23 08:15:33 michael Exp $"; +#endif /* lint */ + +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 */ +}; + +static size_t +_elf_fsize(unsigned cls, Elf_Type type, unsigned ver) { + size_t n = 0; + + if (!valid_version(ver)) { + seterr(ERROR_UNKNOWN_VERSION); + } + else if (!valid_type(type)) { + seterr(ERROR_UNKNOWN_TYPE); + } + else if (!(n = _fsize(cls, ver, type))) { + seterr(ERROR_UNKNOWN_TYPE); + } + 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); + } + else if (!(n = _msize(elf->e_class, ver, type))) { + seterr(ERROR_UNKNOWN_TYPE); + } + else { + return count * n; + } + } + return 0; +} + +#endif /* __LIBELF64 */ |