elf32-gen.c revision 130561 
1/* Generic support for 32-bit ELF
2   Copyright 1993, 1995, 1998, 1999, 2001, 2002, 2004
3   Free Software Foundation, Inc.
4
5This file is part of BFD, the Binary File Descriptor library.
6
7This program is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2 of the License, or
10(at your option) any later version.
11
12This program is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with this program; if not, write to the Free Software
19Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
20
21#include "bfd.h"
22#include "sysdep.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 elf_generic_info_to_howto
45  PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
46static void elf_generic_info_to_howto_rel
47  PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
48static bfd_boolean elf32_generic_link_add_symbols
49  PARAMS ((bfd *, struct bfd_link_info *));
50
51static void
52elf_generic_info_to_howto (abfd, bfd_reloc, elf_reloc)
53     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
61elf_generic_info_to_howto_rel (abfd, bfd_reloc, elf_reloc)
62     bfd *abfd ATTRIBUTE_UNUSED;
63     arelent *bfd_reloc;
64     Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED;
65{
66  bfd_reloc->howto = &dummy;
67}
68
69static bfd_boolean
70elf32_generic_link_add_symbols (abfd, info)
71     bfd *abfd;
72     struct bfd_link_info *info;
73{
74  asection *o;
75
76  /* Check if there are any relocations.  */
77  for (o = abfd->sections; o != NULL; o = o->next)
78    if ((o->flags & SEC_RELOC) != 0)
79      {
80	Elf_Internal_Ehdr *ehdrp;
81
82	ehdrp = elf_elfheader (abfd);
83	(*_bfd_error_handler) (_("%s: Relocations in generic ELF (EM: %d)"),
84			       bfd_archive_filename (abfd),
85			       ehdrp->e_machine);
86
87	bfd_set_error (bfd_error_wrong_format);
88	return FALSE;
89      }
90
91  return bfd_elf_link_add_symbols (abfd, info);
92}
93
94#define TARGET_LITTLE_SYM		bfd_elf32_little_generic_vec
95#define TARGET_LITTLE_NAME		"elf32-little"
96#define TARGET_BIG_SYM			bfd_elf32_big_generic_vec
97#define TARGET_BIG_NAME			"elf32-big"
98#define ELF_ARCH			bfd_arch_unknown
99#define ELF_MACHINE_CODE		EM_NONE
100#define ELF_MAXPAGESIZE			0x1
101#define bfd_elf32_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
102#define bfd_elf32_bfd_link_add_symbols	elf32_generic_link_add_symbols
103#define elf_info_to_howto		elf_generic_info_to_howto
104#define elf_info_to_howto_rel		elf_generic_info_to_howto_rel
105
106#include "elf32-target.h"
107