diff options
Diffstat (limited to 'src/libelf/gelf_update_symshndx.c')
| -rw-r--r-- | src/libelf/gelf_update_symshndx.c | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/src/libelf/gelf_update_symshndx.c b/src/libelf/gelf_update_symshndx.c deleted file mode 100644 index 5e2c7f70..00000000 --- a/src/libelf/gelf_update_symshndx.c +++ /dev/null @@ -1,149 +0,0 @@ -/* Update symbol information and section index in symbol table at the - given index. - Copyright (C) 2000, 2001, 2002, 2005, 2009, 2014 Red Hat, Inc. - This file is part of elfutils. - Written by Ulrich Drepper <drepper@redhat.com>, 2000. - - This file is free software; you can redistribute it and/or modify - it under the terms of either - - * the GNU Lesser General Public License as published by the Free - Software Foundation; either version 3 of the License, or (at - your option) any later version - - or - - * the GNU General Public License as published by the Free - Software Foundation; either version 2 of the License, or (at - your option) any later version - - or both in parallel, as here. - - elfutils 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 - General Public License for more details. - - You should have received copies of the GNU General Public License and - the GNU Lesser General Public License along with this program. If - not, see <http://www.gnu.org/licenses/>. */ - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include <gelf.h> -#include <stdlib.h> -#include <string.h> - -#include "libelfP.h" - - -int -gelf_update_symshndx (symdata, shndxdata, ndx, src, srcshndx) - Elf_Data *symdata; - Elf_Data *shndxdata; - int ndx; - GElf_Sym *src; - Elf32_Word srcshndx; -{ - Elf_Data_Scn *symdata_scn = (Elf_Data_Scn *) symdata; - Elf_Data_Scn *shndxdata_scn = (Elf_Data_Scn *) shndxdata; - Elf_Scn *scn; - Elf32_Word *shndx = NULL; - int result = 0; - - if (symdata == NULL) - return 0; - - if (unlikely (symdata_scn->d.d_type != ELF_T_SYM)) - { - /* The type of the data better should match. */ - __libelf_seterrno (ELF_E_DATA_MISMATCH); - return 0; - } - - scn = symdata_scn->s; - /* We simply have to believe the user that the two sections belong to - the same ELF file. */ - rwlock_wrlock (scn->elf->lock); - - /* The user is not required to pass a data descriptor for an extended - section index table. */ - if (shndxdata_scn != NULL) - { - if (unlikely ((ndx + 1) * sizeof (Elf32_Word) > shndxdata_scn->d.d_size)) - { - __libelf_seterrno (ELF_E_INVALID_INDEX); - goto out; - } - - shndx = &((Elf32_Word *) shndxdata_scn->d.d_buf)[ndx]; - } - /* But if s/he does not the extended sectio index must be zero. */ - else if (unlikely (srcshndx != 0)) - { - __libelf_seterrno (ELF_E_INVALID_INDEX); - goto out; - } - - if (scn->elf->class == ELFCLASS32) - { - Elf32_Sym *sym; - - /* There is the possibility that the values in the input are - too large. */ - if (unlikely (src->st_value > 0xffffffffull) - || unlikely (src->st_size > 0xffffffffull)) - { - __libelf_seterrno (ELF_E_INVALID_DATA); - goto out; - } - - /* Check whether we have to resize the data buffer. */ - if (INVALID_NDX (ndx, Elf32_Sym, &symdata_scn->d)) - { - __libelf_seterrno (ELF_E_INVALID_INDEX); - goto out; - } - - sym = &((Elf32_Sym *) symdata_scn->d.d_buf)[ndx]; - -#define COPY(name) \ - sym->name = src->name - COPY (st_name); - COPY (st_value); - COPY (st_size); - /* Please note that we can simply copy the `st_info' element since - the definitions of ELFxx_ST_BIND and ELFxx_ST_TYPE are the same - for the 64 bit variant. */ - COPY (st_info); - COPY (st_other); - COPY (st_shndx); - } - else - { - /* Check whether we have to resize the data buffer. */ - if (INVALID_NDX (ndx, Elf64_Sym, &symdata_scn->d)) - { - __libelf_seterrno (ELF_E_INVALID_INDEX); - goto out; - } - - ((Elf64_Sym *) symdata_scn->d.d_buf)[ndx] = *src; - } - - /* Now we can store the section index. */ - if (shndx != NULL) - *shndx = srcshndx; - - result = 1; - - /* Mark the section as modified. */ - scn->flags |= ELF_F_DIRTY; - - out: - rwlock_unlock (scn->elf->lock); - - return result; -} |