1/* Generic support for 64-bit ELF
2   Copyright (C) 1993-2017 Free Software Foundation, Inc.
3
4   This file is part of BFD, the Binary File Descriptor library.
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 3 of the License, or
9   (at your option) any later version.
10
11   This program is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with this program; if not, write to the Free Software
18   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19   MA 02110-1301, USA.  */
20
21#include "sysdep.h"
22#include "bfd.h"
23#include "libbfd.h"
24#include "elf-bfd.h"
25
26/* This does not include any relocation information, but should be
27   good enough for GDB or objdump to read the file.  */
28
29static reloc_howto_type dummy =
30  HOWTO (0,			/* type */
31	 0,			/* rightshift */
32	 0,			/* size (0 = byte, 1 = short, 2 = long) */
33	 0,			/* bitsize */
34	 FALSE,			/* pc_relative */
35	 0,			/* bitpos */
36	 complain_overflow_dont, /* complain_on_overflow */
37	 NULL,			/* special_function */
38	 "UNKNOWN",		/* name */
39	 FALSE,			/* partial_inplace */
40	 0,			/* src_mask */
41	 0,			/* dst_mask */
42	 FALSE);		/* pcrel_offset */
43
44static void
45elf_generic_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
46			   arelent *bfd_reloc,
47			   Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED)
48{
49  bfd_reloc->howto = &dummy;
50}
51
52static void
53elf_generic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
54			       arelent *bfd_reloc,
55			       Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED)
56{
57  bfd_reloc->howto = &dummy;
58}
59
60static void
61check_for_relocs (bfd * abfd, asection * o, void * failed)
62{
63  if ((o->flags & SEC_RELOC) != 0)
64    {
65      Elf_Internal_Ehdr *ehdrp;
66
67      ehdrp = elf_elfheader (abfd);
68      /* xgettext:c-format */
69      _bfd_error_handler (_("%B: Relocations in generic ELF (EM: %d)"),
70			  abfd, ehdrp->e_machine);
71
72      bfd_set_error (bfd_error_wrong_format);
73      * (bfd_boolean *) failed = TRUE;
74    }
75}
76
77static bfd_boolean
78elf64_generic_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
79{
80  bfd_boolean failed = FALSE;
81
82  /* Check if there are any relocations.  */
83  bfd_map_over_sections (abfd, check_for_relocs, & failed);
84
85  if (failed)
86    return FALSE;
87  return bfd_elf_link_add_symbols (abfd, info);
88}
89
90#define TARGET_LITTLE_SYM		elf64_le_vec
91#define TARGET_LITTLE_NAME		"elf64-little"
92#define TARGET_BIG_SYM			elf64_be_vec
93#define TARGET_BIG_NAME			"elf64-big"
94#define ELF_ARCH			bfd_arch_unknown
95#define ELF_MACHINE_CODE		EM_NONE
96#define ELF_MAXPAGESIZE			0x1
97#define bfd_elf64_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
98#define bfd_elf64_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
99#define bfd_elf64_bfd_link_add_symbols	elf64_generic_link_add_symbols
100#define elf_info_to_howto		elf_generic_info_to_howto
101#define elf_info_to_howto_rel		elf_generic_info_to_howto_rel
102
103#include "elf64-target.h"
104