64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* Update additional symbol version definition information.
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Copyright (C) 2001, 2002 Red Hat, Inc.
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Written by Ulrich Drepper <drepper@redhat.com>, 2001.
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This program is Open Source software; you can redistribute it and/or
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modify it under the terms of the Open Software License version 1.0 as
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published by the Open Source Initiative.
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You should have received a copy of the Open Software License along
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with this program; if not, you may obtain a copy of the Open Software
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License version 1.0 from http://www.opensource.org/licenses/osl.php or
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by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
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3001 King Ranch Road, Ukiah, CA 95482. */
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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 <assert.h>
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#include <gelf.h>
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#include <string.h>
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#include "libelfP.h"
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int
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gelf_update_verdaux (Elf_Data *data, int offset, GElf_Verdaux *src)
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{
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Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data;
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if (data == NULL)
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return 0;
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/* The types for 32 and 64 bit are the same. Lucky us. */
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assert (sizeof (GElf_Verdaux) == sizeof (Elf32_Verdaux));
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assert (sizeof (GElf_Verdaux) == sizeof (Elf64_Verdaux));
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/* Check whether we have to resize the data buffer. */
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if (unlikely (offset < 0)
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|| unlikely ((offset + sizeof (GElf_Verdaux)) > data_scn->d.d_size))
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{
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__libelf_seterrno (ELF_E_INVALID_INDEX);
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return 0;
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}
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if (unlikely (data_scn->d.d_type != ELF_T_VDEF))
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{
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/* The type of the data better should match. */
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__libelf_seterrno (ELF_E_DATA_MISMATCH);
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return 0;
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}
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rwlock_wrlock (data_scn->s->elf->lock);
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memcpy ((char *) data_scn->d.d_buf + offset, src, sizeof (GElf_Verdaux));
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/* Mark the section as modified. */
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data_scn->s->flags |= ELF_F_DIRTY;
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rwlock_unlock (data_scn->s->elf->lock);
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return 1;
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}
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