[deliverable/binutils-gdb.git] / bfd / elf32-gen.c

/* Generic support for 32-bit ELF
   Copyright 1993, 1995, 1998, 1999, 2001, 2002, 2004, 2005, 2007
   Free Software Foundation, Inc.

   This file is part of BFD, the Binary File Descriptor library.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program 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 a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"

/* This does not include any relocation information, but should be
   good enough for GDB or objdump to read the file.  */

static reloc_howto_type dummy =
  HOWTO (0,			/* type */
	 0,			/* rightshift */
	 0,			/* size (0 = byte, 1 = short, 2 = long) */
	 0,			/* bitsize */
	 FALSE,			/* pc_relative */
	 0,			/* bitpos */
	 complain_overflow_dont, /* complain_on_overflow */
	 NULL,			/* special_function */
	 "UNKNOWN",		/* name */
	 FALSE,			/* partial_inplace */
	 0,			/* src_mask */
	 0,			/* dst_mask */
	 FALSE);		/* pcrel_offset */

static void
elf_generic_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
			   arelent *bfd_reloc,
			   Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED)
{
  bfd_reloc->howto = &dummy;
}

static void
elf_generic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
			       arelent *bfd_reloc,
			       Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED)
{
  bfd_reloc->howto = &dummy;
}

static void
check_for_relocs (bfd * abfd, asection * o, void * failed)
{
  if ((o->flags & SEC_RELOC) != 0)
    {
      Elf_Internal_Ehdr *ehdrp;

      ehdrp = elf_elfheader (abfd);
      _bfd_error_handler (_("%B: Relocations in generic ELF (EM: %d)"),
			  abfd, ehdrp->e_machine);

      bfd_set_error (bfd_error_wrong_format);
      * (bfd_boolean *) failed = TRUE;
    }
}

static bfd_boolean
elf32_generic_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
{
  bfd_boolean failed = FALSE;

  /* Check if there are any relocations.  */
  bfd_map_over_sections (abfd, check_for_relocs, & failed);

  if (failed)
    return FALSE;
  return bfd_elf_link_add_symbols (abfd, info);
}

#define TARGET_LITTLE_SYM		bfd_elf32_little_generic_vec
#define TARGET_LITTLE_NAME		"elf32-little"
#define TARGET_BIG_SYM			bfd_elf32_big_generic_vec
#define TARGET_BIG_NAME			"elf32-big"
#define ELF_ARCH			bfd_arch_unknown
#define ELF_MACHINE_CODE		EM_NONE
#define ELF_MAXPAGESIZE			0x1
#define bfd_elf32_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
#define bfd_elf32_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
#define bfd_elf32_bfd_link_add_symbols	elf32_generic_link_add_symbols
#define elf_info_to_howto		elf_generic_info_to_howto
#define elf_info_to_howto_rel		elf_generic_info_to_howto_rel

#include "elf32-target.h"
Commit	Line	Data
252b5132	1	/* Generic support for 32-bit ELF
3db64b00	2	Copyright 1993, 1995, 1998, 1999, 2001, 2002, 2004, 2005, 2007
b34976b6	3	Free Software Foundation, Inc.
252b5132	4
c8e7bf0d	5	This file is part of BFD, the Binary File Descriptor library.
252b5132	6
c8e7bf0d NC	7	This program is free software; you can redistribute it and/or modify
c8e7bf0d NC	8	it under the terms of the GNU General Public License as published by
cd123cb7	9	the Free Software Foundation; either version 3 of the License, or
c8e7bf0d	10	(at your option) any later version.
252b5132	11
c8e7bf0d NC	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
252b5132	16
c8e7bf0d NC	17	You should have received a copy of the GNU General Public License
c8e7bf0d NC	18	along with this program; if not, write to the Free Software
cd123cb7 NC	19	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
cd123cb7 NC	20	MA 02110-1301, USA. */
252b5132	21
252b5132	22	#include "sysdep.h"
3db64b00	23	#include "bfd.h"
252b5132 RH	24	#include "libbfd.h"
	25	#include "elf-bfd.h"
	26
	27	/* This does not include any relocation information, but should be
	28	good enough for GDB or objdump to read the file. */
	29
	30	static reloc_howto_type dummy =
	31	HOWTO (0, /* type */
	32	0, /* rightshift */
	33	0, /* size (0 = byte, 1 = short, 2 = long) */
	34	0, /* bitsize */
b34976b6	35	FALSE, /* pc_relative */
252b5132 RH	36	0, /* bitpos */
	37	complain_overflow_dont, /* complain_on_overflow */
	38	NULL, /* special_function */
	39	"UNKNOWN", /* name */
b34976b6	40	FALSE, /* partial_inplace */
252b5132 RH	41	0, /* src_mask */
252b5132 RH	42	0, /* dst_mask */
b34976b6	43	FALSE); /* pcrel_offset */
252b5132 RH	44
252b5132 RH	45	static void
c8e7bf0d NC	46	elf_generic_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
	47	arelent *bfd_reloc,
	48	Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED)
252b5132 RH	49	{
	50	bfd_reloc->howto = &dummy;
	51	}
	52
	53	static void
c8e7bf0d NC	54	elf_generic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
	55	arelent *bfd_reloc,
	56	Elf_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED)
252b5132 RH	57	{
	58	bfd_reloc->howto = &dummy;
	59	}
	60
c8e7bf0d NC	61	static void
c8e7bf0d NC	62	check_for_relocs (bfd * abfd, asection * o, void * failed)
eb4a6e4f	63	{
c8e7bf0d NC	64	if ((o->flags & SEC_RELOC) != 0)
	65	{
	66	Elf_Internal_Ehdr *ehdrp;
eb4a6e4f	67
c8e7bf0d NC	68	ehdrp = elf_elfheader (abfd);
	69	_bfd_error_handler (_("%B: Relocations in generic ELF (EM: %d)"),
	70	abfd, ehdrp->e_machine);
eb4a6e4f	71
c8e7bf0d NC	72	bfd_set_error (bfd_error_wrong_format);
	73	* (bfd_boolean *) failed = TRUE;
	74	}
	75	}
eb4a6e4f	76
c8e7bf0d NC	77	static bfd_boolean
	78	elf32_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);
eb4a6e4f	84
c8e7bf0d NC	85	if (failed)
c8e7bf0d NC	86	return FALSE;
4ad4eba5	87	return bfd_elf_link_add_symbols (abfd, info);
eb4a6e4f L	88	}
eb4a6e4f L	89
252b5132 RH	90	#define TARGET_LITTLE_SYM bfd_elf32_little_generic_vec
	91	#define TARGET_LITTLE_NAME "elf32-little"
	92	#define TARGET_BIG_SYM bfd_elf32_big_generic_vec
	93	#define TARGET_BIG_NAME "elf32-big"
	94	#define ELF_ARCH bfd_arch_unknown
	95	#define ELF_MACHINE_CODE EM_NONE
79e5982f	96	#define ELF_MAXPAGESIZE 0x1
252b5132	97	#define bfd_elf32_bfd_reloc_type_lookup bfd_default_reloc_type_lookup
157090f7	98	#define bfd_elf32_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
eb4a6e4f	99	#define bfd_elf32_bfd_link_add_symbols elf32_generic_link_add_symbols
252b5132 RH	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 "elf32-target.h"