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1cedca8ff4
Based on: c950e8a9 config: Fix spec file, add manpages and new GFDL license. With the following patches: configure: Add --disable-programs configure: Add --disable-shared configure: Fix -D_FORTIFY_SOURCE=2 check when CFLAGS contains -Wno-error libcpu: compile i386_lex.c with -Wno-implicit-fallthrough The plan is to stop relying on the distribution's version of elfutils and instead ship our own. This gives us freedom to assume that we're using the latest version and even ship our own patches (starting with a few build system improvements). More details are in scripts/update-elfutils.sh, which was used to generate this commit.
87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
/* Get symbol version information at the given index.
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Copyright (C) 1999, 2000, 2001, 2002, 2005, 2009, 2014, 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>, 1999.
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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 <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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GElf_Versym *
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gelf_getversym (Elf_Data *data, int ndx, GElf_Versym *dst)
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{
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Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data;
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Elf_Scn *scn;
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GElf_Versym *result;
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if (data == NULL)
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return NULL;
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if (unlikely (data->d_type != ELF_T_HALF))
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{
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__libelf_seterrno (ELF_E_INVALID_HANDLE);
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return NULL;
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}
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/* This is the one place where we have to take advantage of the fact
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that an `Elf_Data' pointer is also a pointer to `Elf_Data_Scn'.
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The interface is broken so that it requires this hack. */
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scn = data_scn->s;
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/* It's easy to handle this type. It has the same size for 32 and
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64 bit objects. */
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assert (sizeof (GElf_Versym) == sizeof (Elf32_Versym));
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assert (sizeof (GElf_Versym) == sizeof (Elf64_Versym));
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rwlock_rdlock (scn->elf->lock);
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/* The data is already in the correct form. Just make sure the
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index is OK. */
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if (INVALID_NDX (ndx, GElf_Versym, data))
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{
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__libelf_seterrno (ELF_E_INVALID_INDEX);
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result = NULL;
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}
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else
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{
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*dst = ((GElf_Versym *) data->d_buf)[ndx];
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result = dst;
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}
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rwlock_unlock (scn->elf->lock);
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return result;
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}
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