mirror of
https://github.com/autc04/Retro68.git
synced 2024-07-13 10:29:09 +00:00
d21be3b4e1
(from https://sourceware.org/elfutils/, GPL/LGPL licensed)
88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
/* Get section at specific index.
|
|
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2015 Red Hat, Inc.
|
|
This file is part of elfutils.
|
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 1998.
|
|
|
|
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 <assert.h>
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "libelfP.h"
|
|
|
|
|
|
Elf_Scn *
|
|
elf_getscn (Elf *elf, size_t idx)
|
|
{
|
|
if (elf == NULL)
|
|
return NULL;
|
|
|
|
if (unlikely (elf->kind != ELF_K_ELF))
|
|
{
|
|
__libelf_seterrno (ELF_E_INVALID_HANDLE);
|
|
return NULL;
|
|
}
|
|
|
|
rwlock_rdlock (elf->lock);
|
|
|
|
Elf_Scn *result = NULL;
|
|
|
|
/* Find the section in the list. */
|
|
Elf_ScnList *runp = (elf->class == ELFCLASS32
|
|
|| (offsetof (struct Elf, state.elf32.scns)
|
|
== offsetof (struct Elf, state.elf64.scns))
|
|
? &elf->state.elf32.scns : &elf->state.elf64.scns);
|
|
while (1)
|
|
{
|
|
if (idx < runp->max)
|
|
{
|
|
if (idx < runp->cnt)
|
|
result = &runp->data[idx];
|
|
else
|
|
__libelf_seterrno (ELF_E_INVALID_INDEX);
|
|
break;
|
|
}
|
|
|
|
idx -= runp->max;
|
|
|
|
runp = runp->next;
|
|
if (runp == NULL)
|
|
{
|
|
__libelf_seterrno (ELF_E_INVALID_INDEX);
|
|
break;
|
|
}
|
|
}
|
|
|
|
rwlock_unlock (elf->lock);
|
|
|
|
return result;
|
|
}
|
|
INTDEF(elf_getscn)
|