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104 lines
3.7 KiB
104 lines
3.7 KiB
/* Return the size of an object file type.
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Copyright (C) 1998-2010, 2015 Red Hat, Inc.
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This file is part of elfutils.
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Written by Ulrich Drepper <drepper@redhat.com>, 1998.
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This file is free software; you can redistribute it and/or modify
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it under the terms of either
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at
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your option) any later version
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at
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your option) any later version
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or both in parallel, as here.
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elfutils is distributed in the hope that it will be useful, but
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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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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <gelf.h>
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#include <stddef.h>
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#include "libelfP.h"
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/* These are the sizes for all the known types. */
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const size_t __libelf_type_sizes[ELFCLASSNUM - 1][ELF_T_NUM] =
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{
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[ELFCLASS32 - 1] = {
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#define TYPE_SIZES(LIBELFBITS) \
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[ELF_T_ADDR] = ELFW2(LIBELFBITS, FSZ_ADDR), \
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[ELF_T_OFF] = ELFW2(LIBELFBITS, FSZ_OFF), \
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[ELF_T_BYTE] = 1, \
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[ELF_T_HALF] = ELFW2(LIBELFBITS, FSZ_HALF), \
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[ELF_T_WORD] = ELFW2(LIBELFBITS, FSZ_WORD), \
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[ELF_T_SWORD] = ELFW2(LIBELFBITS, FSZ_SWORD), \
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[ELF_T_XWORD] = ELFW2(LIBELFBITS, FSZ_XWORD), \
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[ELF_T_SXWORD] = ELFW2(LIBELFBITS, FSZ_SXWORD), \
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[ELF_T_EHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Ehdr)), \
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[ELF_T_SHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Shdr)), \
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[ELF_T_SYM] = sizeof (ElfW2(LIBELFBITS, Ext_Sym)), \
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[ELF_T_REL] = sizeof (ElfW2(LIBELFBITS, Ext_Rel)), \
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[ELF_T_RELA] = sizeof (ElfW2(LIBELFBITS, Ext_Rela)), \
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[ELF_T_PHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Phdr)), \
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[ELF_T_DYN] = sizeof (ElfW2(LIBELFBITS, Ext_Dyn)), \
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[ELF_T_VDEF] = sizeof (ElfW2(LIBELFBITS, Ext_Verdef)), \
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[ELF_T_VDAUX] = sizeof (ElfW2(LIBELFBITS, Ext_Verdaux)), \
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[ELF_T_VNEED] = sizeof (ElfW2(LIBELFBITS, Ext_Verneed)), \
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[ELF_T_VNAUX] = sizeof (ElfW2(LIBELFBITS, Ext_Vernaux)), \
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[ELF_T_NHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Nhdr)), \
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/* Note the header size is the same, but padding is different. */ \
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[ELF_T_NHDR8] = sizeof (ElfW2(LIBELFBITS, Ext_Nhdr)), \
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[ELF_T_SYMINFO] = sizeof (ElfW2(LIBELFBITS, Ext_Syminfo)), \
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[ELF_T_MOVE] = sizeof (ElfW2(LIBELFBITS, Ext_Move)), \
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[ELF_T_LIB] = sizeof (ElfW2(LIBELFBITS, Ext_Lib)), \
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[ELF_T_AUXV] = sizeof (ElfW2(LIBELFBITS, Ext_auxv_t)), \
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[ELF_T_CHDR] = sizeof (ElfW2(LIBELFBITS, Ext_Chdr)), \
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[ELF_T_GNUHASH] = ELFW2(LIBELFBITS, FSZ_WORD)
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TYPE_SIZES (32)
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},
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[ELFCLASS64 - 1] = {
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TYPE_SIZES (64)
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}
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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 int version)
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{
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/* We do not have differences between file and memory sizes. Better
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not since otherwise `mmap' would not work. */
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if (elf == NULL)
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return 0;
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if (version != EV_CURRENT)
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{
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__libelf_seterrno (ELF_E_UNKNOWN_VERSION);
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return 0;
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}
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if (type >= ELF_T_NUM)
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{
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__libelf_seterrno (ELF_E_UNKNOWN_TYPE);
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return 0;
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}
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return count * __libelf_type_sizes[elf->class - 1][type];
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}
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INTDEF(gelf_fsize)
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