1/* Initialization of x86-64 specific backend library.
2   Copyright (C) 2002-2009, 2013 Red Hat, Inc.
3   Copyright (C) H.J. Lu <hjl.tools@gmail.com>, 2015.
4   This file is part of elfutils.
5   Written by Ulrich Drepper <drepper@redhat.com>, 2002.
6
7   This file is free software; you can redistribute it and/or modify
8   it under the terms of either
9
10     * the GNU Lesser General Public License as published by the Free
11       Software Foundation; either version 3 of the License, or (at
12       your option) any later version
13
14   or
15
16     * the GNU General Public License as published by the Free
17       Software Foundation; either version 2 of the License, or (at
18       your option) any later version
19
20   or both in parallel, as here.
21
22   elfutils is distributed in the hope that it will be useful, but
23   WITHOUT ANY WARRANTY; without even the implied warranty of
24   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
25   General Public License for more details.
26
27   You should have received copies of the GNU General Public License and
28   the GNU Lesser General Public License along with this program.  If
29   not, see <http://www.gnu.org/licenses/>.  */
30
31#ifdef HAVE_CONFIG_H
32# include <config.h>
33#endif
34
35#define BACKEND		x86_64_
36#define RELOC_PREFIX	R_X86_64_
37#include "libebl_CPU.h"
38
39/* This defines the common reloc hooks based on x86_64_reloc.def.  */
40#include "common-reloc.c"
41
42extern __typeof (EBLHOOK (core_note)) x32_core_note attribute_hidden;
43
44const char *
45x86_64_init (Elf *elf __attribute__ ((unused)),
46	     GElf_Half machine __attribute__ ((unused)),
47	     Ebl *eh,
48	     size_t ehlen)
49{
50  /* Check whether the Elf_BH object has a sufficent size.  */
51  if (ehlen < sizeof (Ebl))
52    return NULL;
53
54  /* We handle it.  */
55  eh->name = "AMD x86-64";
56  x86_64_init_reloc (eh);
57  HOOK (eh, reloc_simple_type);
58  if (eh->class == ELFCLASS32)
59    eh->core_note = x32_core_note;
60  else
61    HOOK (eh, core_note);
62  HOOK (eh, return_value_location);
63  HOOK (eh, register_info);
64  HOOK (eh, syscall_abi);
65  HOOK (eh, auxv_info);
66  HOOK (eh, disasm);
67  HOOK (eh, abi_cfi);
68  /* gcc/config/ #define DWARF_FRAME_REGISTERS.  */
69  eh->frame_nregs = 17;
70  HOOK (eh, set_initial_registers_tid);
71
72  return MODVERSION;
73}
74