1999-05-03 07:29:11 +00:00
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/* ARC-specific support for 32-bit ELF
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2015-01-01 14:15:26 +00:00
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Copyright (C) 1994-2015 Free Software Foundation, Inc.
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1999-05-03 07:29:11 +00:00
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Contributed by Doug Evans (dje@cygnus.com).
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2001-01-11 21:20:20 +00:00
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This file is part of BFD, the Binary File Descriptor library.
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1999-05-03 07:29:11 +00:00
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2001-01-11 21:20:20 +00:00
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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2007-07-03 14:26:43 +00:00
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the Free Software Foundation; either version 3 of the License, or
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2001-01-11 21:20:20 +00:00
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(at your option) any later version.
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1999-05-03 07:29:11 +00:00
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2001-01-11 21:20:20 +00:00
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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1999-05-03 07:29:11 +00:00
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2001-01-11 21:20:20 +00:00
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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2005-07-01 11:16:33 +00:00
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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1999-05-03 07:29:11 +00:00
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#include "sysdep.h"
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2007-04-26 14:47:00 +00:00
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#include "bfd.h"
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1999-05-03 07:29:11 +00:00
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#include "libbfd.h"
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#include "elf-bfd.h"
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#include "elf/arc.h"
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2001-10-02 14:28:42 +00:00
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#include "libiberty.h"
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1999-05-03 07:29:11 +00:00
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/* Try to minimize the amount of space occupied by relocation tables
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on the ROM (not that the ROM won't be swamped by other ELF overhead). */
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2001-01-11 21:20:20 +00:00
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2002-10-17 02:59:15 +00:00
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#define USE_REL 1
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1999-05-03 07:29:11 +00:00
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2005-07-01 11:16:33 +00:00
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static bfd_reloc_status_type
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arc_elf_b22_pcrel (bfd * abfd,
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arelent * reloc_entry,
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asymbol * symbol,
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void * data,
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asection * input_section,
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bfd * output_bfd,
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char ** error_message)
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{
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/* If linking, back up the final symbol address by the address of the
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reloc. This cannot be accomplished by setting the pcrel_offset
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field to TRUE, as bfd_install_relocation will detect this and refuse
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to install the offset in the first place, but bfd_perform_relocation
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will still insist on removing it. */
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if (output_bfd == NULL)
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reloc_entry->addend -= reloc_entry->address;
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/* Fall through to the default elf reloc handler. */
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return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
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input_section, output_bfd, error_message);
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}
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1999-05-03 07:29:11 +00:00
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static reloc_howto_type elf_arc_howto_table[] =
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{
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/* This reloc does nothing. */
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2005-07-01 11:16:33 +00:00
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HOWTO (R_ARC_NONE, /* Type. */
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0, /* Rightshift. */
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2015-01-19 00:06:26 +00:00
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3, /* Size (0 = byte, 1 = short, 2 = long). */
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0, /* Bitsize. */
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2005-07-01 11:16:33 +00:00
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FALSE, /* PC_relative. */
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0, /* Bitpos. */
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complain_overflow_bitfield, /* Complain_on_overflow. */
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bfd_elf_generic_reloc, /* Special_function. */
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"R_ARC_NONE", /* Name. */
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TRUE, /* Partial_inplace. */
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0, /* Src_mask. */
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0, /* Dst_mask. */
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FALSE), /* PCrel_offset. */
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1999-05-03 07:29:11 +00:00
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/* A standard 32 bit relocation. */
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2005-07-01 11:16:33 +00:00
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HOWTO (R_ARC_32, /* Type. */
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0, /* Rightshift. */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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32, /* Bitsize. */
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FALSE, /* PC_relative. */
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0, /* Bitpos. */
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complain_overflow_bitfield, /* Complain_on_overflow. */
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bfd_elf_generic_reloc, /* Special_function. */
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"R_ARC_32", /* Name. */
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TRUE, /* Partial_inplace. */
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0xffffffff, /* Src_mask. */
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0xffffffff, /* Dst_mask. */
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FALSE), /* PCrel_offset. */
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1999-05-03 07:29:11 +00:00
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/* A 26 bit absolute branch, right shifted by 2. */
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2005-07-01 11:16:33 +00:00
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HOWTO (R_ARC_B26, /* Type. */
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2, /* Rightshift. */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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26, /* Bitsize. */
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FALSE, /* PC_relative. */
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0, /* Bitpos. */
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complain_overflow_bitfield, /* Complain_on_overflow. */
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bfd_elf_generic_reloc, /* Special_function. */
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"R_ARC_B26", /* Name. */
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TRUE, /* Partial_inplace. */
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0x00ffffff, /* Src_mask. */
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0x00ffffff, /* Dst_mask. */
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FALSE), /* PCrel_offset. */
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1999-05-03 07:29:11 +00:00
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/* A relative 22 bit branch; bits 21-2 are stored in bits 26-7. */
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2005-07-01 11:16:33 +00:00
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HOWTO (R_ARC_B22_PCREL, /* Type. */
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2, /* Rightshift. */
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2, /* Size (0 = byte, 1 = short, 2 = long). */
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22, /* Bitsize. */
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TRUE, /* PC_relative. */
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7, /* Bitpos. */
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complain_overflow_signed, /* Complain_on_overflow. */
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arc_elf_b22_pcrel, /* Special_function. */
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"R_ARC_B22_PCREL", /* Name. */
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TRUE, /* Partial_inplace. */
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0x07ffff80, /* Src_mask. */
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0x07ffff80, /* Dst_mask. */
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FALSE), /* PCrel_offset. */
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1999-05-03 07:29:11 +00:00
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};
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/* Map BFD reloc types to ARC ELF reloc types. */
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struct arc_reloc_map
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{
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bfd_reloc_code_real_type bfd_reloc_val;
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unsigned char elf_reloc_val;
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};
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static const struct arc_reloc_map arc_reloc_map[] =
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{
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{ BFD_RELOC_NONE, R_ARC_NONE, },
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{ BFD_RELOC_32, R_ARC_32 },
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{ BFD_RELOC_CTOR, R_ARC_32 },
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{ BFD_RELOC_ARC_B26, R_ARC_B26 },
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{ BFD_RELOC_ARC_B22_PCREL, R_ARC_B22_PCREL },
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};
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static reloc_howto_type *
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2005-07-01 11:16:33 +00:00
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bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
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bfd_reloc_code_real_type code)
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1999-05-03 07:29:11 +00:00
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{
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unsigned int i;
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2001-10-02 14:28:42 +00:00
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for (i = ARRAY_SIZE (arc_reloc_map); i--;)
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if (arc_reloc_map[i].bfd_reloc_val == code)
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return elf_arc_howto_table + arc_reloc_map[i].elf_reloc_val;
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1999-05-03 07:29:11 +00:00
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return NULL;
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}
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2007-03-26 12:23:03 +00:00
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static reloc_howto_type *
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bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
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const char *r_name)
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{
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unsigned int i;
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for (i = 0;
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i < sizeof (elf_arc_howto_table) / sizeof (elf_arc_howto_table[0]);
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i++)
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if (elf_arc_howto_table[i].name != NULL
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&& strcasecmp (elf_arc_howto_table[i].name, r_name) == 0)
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return &elf_arc_howto_table[i];
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return NULL;
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}
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1999-05-03 07:29:11 +00:00
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/* Set the howto pointer for an ARC ELF reloc. */
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static void
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2005-07-01 11:16:33 +00:00
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arc_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
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arelent *cache_ptr,
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Elf_Internal_Rela *dst)
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1999-05-03 07:29:11 +00:00
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{
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unsigned int r_type;
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r_type = ELF32_R_TYPE (dst->r_info);
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2014-12-22 20:59:00 +00:00
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if (r_type >= (unsigned int) R_ARC_max)
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{
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2015-02-03 14:34:54 +00:00
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_bfd_error_handler (_("%B: invalid ARC reloc number: %d"), abfd, r_type);
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2014-12-22 20:59:00 +00:00
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r_type = 0;
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}
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1999-05-03 07:29:11 +00:00
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cache_ptr->howto = &elf_arc_howto_table[r_type];
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}
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/* Set the right machine number for an ARC ELF file. */
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2002-11-30 08:39:46 +00:00
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static bfd_boolean
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2005-07-01 11:16:33 +00:00
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arc_elf_object_p (bfd *abfd)
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1999-05-03 07:29:11 +00:00
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{
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Touches most files in bfd/, so likely will be blamed for everything..
o bfd_read and bfd_write lose an unnecessary param and become
bfd_bread and bfd_bwrite.
o bfd_*alloc now all take a bfd_size_type arg, and will error if
size_t is too small. eg. 32 bit host, 64 bit bfd, verrry big files
or bugs in linker scripts etc.
o file_ptr becomes a bfd_signed_vma. Besides matching sizes with
various other types involved in handling sections, this should make
it easier for bfd to support a 64 bit off_t on 32 bit hosts that
provide it.
o I've made the H_GET_* and H_PUT_* macros (which invoke bfd_h_{get,put}_*)
generally available. They now cast their args to bfd_vma and
bfd_byte * as appropriate, which removes a swag of casts from the
source.
o Bug fixes to bfd_get8, aix386_core_vec, elf32_h8_relax_section, and
aout-encap.c.
o Zillions of formatting and -Wconversion fixes.
2001-09-18 09:57:26 +00:00
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unsigned int mach = bfd_mach_arc_6;
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1999-05-03 07:29:11 +00:00
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2001-01-11 21:20:20 +00:00
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if (elf_elfheader(abfd)->e_machine == EM_ARC)
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1999-05-03 07:29:11 +00:00
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{
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2001-01-11 21:20:20 +00:00
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unsigned long arch = elf_elfheader (abfd)->e_flags & EF_ARC_MACH;
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switch (arch)
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{
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case E_ARC_MACH_ARC5:
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mach = bfd_mach_arc_5;
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break;
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2001-05-12 15:14:53 +00:00
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default:
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2001-01-11 21:20:20 +00:00
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case E_ARC_MACH_ARC6:
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mach = bfd_mach_arc_6;
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break;
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case E_ARC_MACH_ARC7:
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mach = bfd_mach_arc_7;
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break;
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case E_ARC_MACH_ARC8:
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mach = bfd_mach_arc_8;
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break;
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}
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1999-05-03 07:29:11 +00:00
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}
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2001-01-11 21:20:20 +00:00
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return bfd_default_set_arch_mach (abfd, bfd_arch_arc, mach);
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1999-05-03 07:29:11 +00:00
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}
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/* The final processing done just before writing out an ARC ELF object file.
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This gets the ARC architecture right based on the machine number. */
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static void
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2005-07-01 11:16:33 +00:00
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arc_elf_final_write_processing (bfd *abfd,
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bfd_boolean linker ATTRIBUTE_UNUSED)
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1999-05-03 07:29:11 +00:00
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{
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unsigned long val;
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2001-01-11 21:20:20 +00:00
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switch (bfd_get_mach (abfd))
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1999-05-03 07:29:11 +00:00
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{
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2001-01-11 21:20:20 +00:00
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case bfd_mach_arc_5:
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val = E_ARC_MACH_ARC5;
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break;
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2001-05-12 15:14:53 +00:00
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default:
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2001-01-11 21:20:20 +00:00
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case bfd_mach_arc_6:
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val = E_ARC_MACH_ARC6;
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break;
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case bfd_mach_arc_7:
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val = E_ARC_MACH_ARC7;
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break;
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case bfd_mach_arc_8:
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val = E_ARC_MACH_ARC8;
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break;
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1999-05-03 07:29:11 +00:00
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}
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elf_elfheader (abfd)->e_flags &=~ EF_ARC_MACH;
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elf_elfheader (abfd)->e_flags |= val;
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}
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bfd target vector rationalisation
This renames the bfd targets to <cpu>_<format>_<other>_<endian>_vec.
So for example, bfd_elf32_ntradlittlemips_vec becomes
mips_elf32_ntrad_le_vec and hp300bsd_vec becomes m68k_aout_hp300bsd_vec.
bfd/
* aix386-core.c, * aout-adobe.c, * aout-arm.c, * aout-ns32k.c,
* aout-sparcle.c, * aout0.c, * aoutx.h, * armnetbsd.c, * bout.c,
* cf-i386lynx.c, * cf-sparclynx.c, * cisco-core.c, * coff-alpha.c,
* coff-apollo.c, * coff-arm.c, * coff-aux.c, * coff-go32.c,
* coff-h8300.c, * coff-h8500.c, * coff-i386.c, * coff-i860.c,
* coff-i960.c, * coff-m68k.c, * coff-m88k.c, * coff-mips.c,
* coff-rs6000.c, * coff-sh.c, * coff-sparc.c, * coff-stgo32.c,
* coff-svm68k.c, * coff-tic80.c, * coff-u68k.c, * coff-w65.c,
* coff-we32k.c, * coff-x86_64.c, * coff-z80.c, * coff-z8k.c,
* coff64-rs6000.c, * config.bfd, * configure.com, * configure.in,
* demo64.c, * elf-m10200.c, * elf-m10300.c, * elf32-am33lin.c,
* elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-bfin.c,
* elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c,
* elf32-d10v.c, * elf32-d30v.c, * elf32-dlx.c, * elf32-epiphany.c,
* elf32-fr30.c, * elf32-frv.c, * elf32-gen.c, * elf32-h8300.c,
* elf32-hppa.c, * elf32-i370.c, * elf32-i386.c, * elf32-i860.c,
* elf32-i960.c, * elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c,
* elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c,
* elf32-m68k.c, * elf32-m88k.c, * elf32-mcore.c, * elf32-mep.c,
* elf32-metag.c, * elf32-microblaze.c, * elf32-mips.c, * elf32-moxie.c,
* elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c, * elf32-nios2.c,
* elf32-or1k.c, * elf32-pj.c, * elf32-ppc.c, * elf32-rl78.c,
* elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-sh-symbian.c,
* elf32-sh.c, * elf32-sh64.c, * elf32-sparc.c, * elf32-spu.c,
* elf32-tic6x.c, * elf32-tilegx.c, * elf32-tilepro.c, * elf32-v850.c,
* elf32-vax.c, * elf32-xc16x.c, * elf32-xgate.c, * elf32-xstormy16.c,
* elf32-xtensa.c, * elf64-alpha.c, * elf64-gen.c, * elf64-hppa.c,
* elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c, * elf64-ppc.c,
* elf64-s390.c, * elf64-sh64.c, * elf64-sparc.c, * elf64-tilegx.c,
* elf64-x86-64.c, * elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c,
* epoc-pe-arm.c, * epoc-pei-arm.c, * hp300bsd.c, * hp300hpux.c,
* hppabsd-core.c, * hpux-core.c, * i386aout.c, * i386bsd.c,
* i386dynix.c, * i386freebsd.c, * i386linux.c, * i386lynx.c,
* i386mach3.c, * i386msdos.c, * i386netbsd.c, * i386os9k.c,
* irix-core.c, * m68k4knetbsd.c, * m68klinux.c, * m68knetbsd.c,
* m88kmach3.c, * m88kopenbsd.c, * mach-o-i386.c, * mach-o-x86-64.c,
* makefile.vms, * mipsbsd.c, * mmo.c, * netbsd-core.c, * newsos3.c,
* nlm32-alpha.c, * nlm32-i386.c, * nlm32-ppc.c, * nlm32-sparc.c,
* ns32knetbsd.c, * osf-core.c, * pc532-mach.c, * pe-arm-wince.c,
* pe-arm.c, * pe-i386.c, * pe-mcore.c, * pe-mips.c, * pe-ppc.c,
* pe-sh.c, * pe-x86_64.c, * pei-arm-wince.c, * pei-arm.c,
* pei-i386.c, * pei-ia64.c, * pei-mcore.c, * pei-mips.c, * pei-ppc.c,
* pei-sh.c, * pei-x86_64.c, * ppcboot.c, * ptrace-core.c, * riscix.c,
* sco5-core.c, * som.c, * sparclinux.c, * sparclynx.c,
* sparcnetbsd.c, * sunos.c, * targets.c, * trad-core.c,
* vax1knetbsd.c, * vaxbsd.c, * vaxnetbsd.c, * versados.c,
* vms-alpha.c, * vms-lib.c: Rename bfd targets to
<cpu>_<format>_<other>_<endian>_vec. Adjust associated MY macros
on aout targets.
* configure: Regenerate.
binutils/
* emul_aix.c: Update bfd target vector naming.
* testsuite/binutils-all/objcopy.exp: Likewise.
ld/
* emultempl/metagelf.em: Update bfd target vector naming.
* emultempl/nios2elf.em: Likewise.
* emultempl/spuelf.em: Likewise.
* emultempl/tic6xdsbt.em: Likewise.
2014-05-02 10:39:40 +00:00
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#define TARGET_LITTLE_SYM arc_elf32_le_vec
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2005-07-01 11:16:33 +00:00
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#define TARGET_LITTLE_NAME "elf32-littlearc"
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bfd target vector rationalisation
This renames the bfd targets to <cpu>_<format>_<other>_<endian>_vec.
So for example, bfd_elf32_ntradlittlemips_vec becomes
mips_elf32_ntrad_le_vec and hp300bsd_vec becomes m68k_aout_hp300bsd_vec.
bfd/
* aix386-core.c, * aout-adobe.c, * aout-arm.c, * aout-ns32k.c,
* aout-sparcle.c, * aout0.c, * aoutx.h, * armnetbsd.c, * bout.c,
* cf-i386lynx.c, * cf-sparclynx.c, * cisco-core.c, * coff-alpha.c,
* coff-apollo.c, * coff-arm.c, * coff-aux.c, * coff-go32.c,
* coff-h8300.c, * coff-h8500.c, * coff-i386.c, * coff-i860.c,
* coff-i960.c, * coff-m68k.c, * coff-m88k.c, * coff-mips.c,
* coff-rs6000.c, * coff-sh.c, * coff-sparc.c, * coff-stgo32.c,
* coff-svm68k.c, * coff-tic80.c, * coff-u68k.c, * coff-w65.c,
* coff-we32k.c, * coff-x86_64.c, * coff-z80.c, * coff-z8k.c,
* coff64-rs6000.c, * config.bfd, * configure.com, * configure.in,
* demo64.c, * elf-m10200.c, * elf-m10300.c, * elf32-am33lin.c,
* elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-bfin.c,
* elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c,
* elf32-d10v.c, * elf32-d30v.c, * elf32-dlx.c, * elf32-epiphany.c,
* elf32-fr30.c, * elf32-frv.c, * elf32-gen.c, * elf32-h8300.c,
* elf32-hppa.c, * elf32-i370.c, * elf32-i386.c, * elf32-i860.c,
* elf32-i960.c, * elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c,
* elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c,
* elf32-m68k.c, * elf32-m88k.c, * elf32-mcore.c, * elf32-mep.c,
* elf32-metag.c, * elf32-microblaze.c, * elf32-mips.c, * elf32-moxie.c,
* elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c, * elf32-nios2.c,
* elf32-or1k.c, * elf32-pj.c, * elf32-ppc.c, * elf32-rl78.c,
* elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-sh-symbian.c,
* elf32-sh.c, * elf32-sh64.c, * elf32-sparc.c, * elf32-spu.c,
* elf32-tic6x.c, * elf32-tilegx.c, * elf32-tilepro.c, * elf32-v850.c,
* elf32-vax.c, * elf32-xc16x.c, * elf32-xgate.c, * elf32-xstormy16.c,
* elf32-xtensa.c, * elf64-alpha.c, * elf64-gen.c, * elf64-hppa.c,
* elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c, * elf64-ppc.c,
* elf64-s390.c, * elf64-sh64.c, * elf64-sparc.c, * elf64-tilegx.c,
* elf64-x86-64.c, * elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c,
* epoc-pe-arm.c, * epoc-pei-arm.c, * hp300bsd.c, * hp300hpux.c,
* hppabsd-core.c, * hpux-core.c, * i386aout.c, * i386bsd.c,
* i386dynix.c, * i386freebsd.c, * i386linux.c, * i386lynx.c,
* i386mach3.c, * i386msdos.c, * i386netbsd.c, * i386os9k.c,
* irix-core.c, * m68k4knetbsd.c, * m68klinux.c, * m68knetbsd.c,
* m88kmach3.c, * m88kopenbsd.c, * mach-o-i386.c, * mach-o-x86-64.c,
* makefile.vms, * mipsbsd.c, * mmo.c, * netbsd-core.c, * newsos3.c,
* nlm32-alpha.c, * nlm32-i386.c, * nlm32-ppc.c, * nlm32-sparc.c,
* ns32knetbsd.c, * osf-core.c, * pc532-mach.c, * pe-arm-wince.c,
* pe-arm.c, * pe-i386.c, * pe-mcore.c, * pe-mips.c, * pe-ppc.c,
* pe-sh.c, * pe-x86_64.c, * pei-arm-wince.c, * pei-arm.c,
* pei-i386.c, * pei-ia64.c, * pei-mcore.c, * pei-mips.c, * pei-ppc.c,
* pei-sh.c, * pei-x86_64.c, * ppcboot.c, * ptrace-core.c, * riscix.c,
* sco5-core.c, * som.c, * sparclinux.c, * sparclynx.c,
* sparcnetbsd.c, * sunos.c, * targets.c, * trad-core.c,
* vax1knetbsd.c, * vaxbsd.c, * vaxnetbsd.c, * versados.c,
* vms-alpha.c, * vms-lib.c: Rename bfd targets to
<cpu>_<format>_<other>_<endian>_vec. Adjust associated MY macros
on aout targets.
* configure: Regenerate.
binutils/
* emul_aix.c: Update bfd target vector naming.
* testsuite/binutils-all/objcopy.exp: Likewise.
ld/
* emultempl/metagelf.em: Update bfd target vector naming.
* emultempl/nios2elf.em: Likewise.
* emultempl/spuelf.em: Likewise.
* emultempl/tic6xdsbt.em: Likewise.
2014-05-02 10:39:40 +00:00
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#define TARGET_BIG_SYM arc_elf32_be_vec
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2005-07-01 11:16:33 +00:00
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#define TARGET_BIG_NAME "elf32-bigarc"
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#define ELF_ARCH bfd_arch_arc
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#define ELF_MACHINE_CODE EM_ARC
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#define ELF_MAXPAGESIZE 0x1000
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#define elf_info_to_howto 0
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#define elf_info_to_howto_rel arc_info_to_howto_rel
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#define elf_backend_object_p arc_elf_object_p
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#define elf_backend_final_write_processing arc_elf_final_write_processing
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1999-05-03 07:29:11 +00:00
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#include "elf32-target.h"
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