1/* Generic support for 32-bit ELF
2   Copyright (C) 1993-2022 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 */
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 bool
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  return true;
51}
52
53static bool
54elf_generic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
55			       arelent *bfd_reloc,
56			       Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED)
57{
58  bfd_reloc->howto = &dummy;
59  return true;
60}
61
62static void
63check_for_relocs (bfd * abfd, asection * o, void * failed)
64{
65  if ((o->flags & SEC_RELOC) != 0)
66    {
67      Elf_Internal_Ehdr *ehdrp;
68
69      ehdrp = elf_elfheader (abfd);
70      /* xgettext:c-format */
71      _bfd_error_handler (_("%pB: relocations in generic ELF (EM: %d)"),
72			  abfd, ehdrp->e_machine);
73
74      bfd_set_error (bfd_error_wrong_format);
75      * (bool *) failed = true;
76    }
77}
78
79static bool
80elf32_generic_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
81{
82  bool failed = false;
83
84  /* Check if there are any relocations.  */
85  bfd_map_over_sections (abfd, check_for_relocs, & failed);
86
87  if (failed)
88    return false;
89  return bfd_elf_link_add_symbols (abfd, info);
90}
91
92#define TARGET_LITTLE_SYM		elf32_le_vec
93#define TARGET_LITTLE_NAME		"elf32-little"
94#define TARGET_BIG_SYM			elf32_be_vec
95#define TARGET_BIG_NAME			"elf32-big"
96#define ELF_ARCH			bfd_arch_unknown
97#define ELF_MACHINE_CODE		EM_NONE
98#define ELF_MAXPAGESIZE			0x1
99#define bfd_elf32_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
100#define bfd_elf32_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
101#define bfd_elf32_bfd_link_add_symbols	elf32_generic_link_add_symbols
102#define elf_info_to_howto		elf_generic_info_to_howto
103#define elf_info_to_howto_rel		elf_generic_info_to_howto_rel
104
105#include "elf32-target.h"
106