808 lines
22 KiB
C
808 lines
22 KiB
C
/* V850-specific support for 32-bit ELF
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Copyright (C) 1994, 1995 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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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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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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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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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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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* XXX FIXME: This code is littered with 32bit int, 16bit short, 8bit char
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dependencies. As is the gas & simulator code or the v850. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "bfdlink.h"
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#include "libbfd.h"
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#include "elf-bfd.h"
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static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
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PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
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static void v850_info_to_howto_rel
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PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
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static bfd_reloc_status_type bfd_elf32_v850_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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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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#define USE_REL
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enum reloc_type
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{
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R_V850_NONE = 0,
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R_V850_9_PCREL,
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R_V850_22_PCREL,
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R_V850_HI16_S,
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R_V850_HI16,
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R_V850_LO16,
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R_V850_32,
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R_V850_16,
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R_V850_8,
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R_V850_SDA_OFFSET,
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R_V850_ZDA_OFFSET,
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R_V850_TDA_OFFSET,
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R_V850_max
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};
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static reloc_howto_type elf_v850_howto_table[] =
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{
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/* This reloc does nothing. */
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HOWTO (R_V850_NONE, /* 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_V850_NONE", /* name */
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false, /* 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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/* A PC relative 9 bit branch. */
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HOWTO (R_V850_9_PCREL, /* 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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true, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf32_v850_reloc, /* special_function */
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"R_V850_9_PCREL", /* name */
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false, /* partial_inplace */
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0x00ffffff, /* src_mask */
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0x00ffffff, /* dst_mask */
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true), /* pcrel_offset */
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/* A PC relative 22 bit branch. */
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HOWTO (R_V850_22_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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bfd_elf32_v850_reloc, /* special_function */
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"R_V850_22_PCREL", /* name */
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false, /* partial_inplace */
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0x07ffff80, /* src_mask */
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0x07ffff80, /* dst_mask */
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true), /* pcrel_offset */
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/* High 16 bits of symbol value. */
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HOWTO (R_V850_HI16_S, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont,/* complain_on_overflow */
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bfd_elf32_v850_reloc, /* special_function */
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"R_V850_HI16_S", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* High 16 bits of symbol value. */
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HOWTO (R_V850_HI16, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont,/* complain_on_overflow */
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bfd_elf32_v850_reloc, /* special_function */
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"R_V850_HI16", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Low 16 bits of symbol value. */
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HOWTO (R_V850_LO16, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_V850_LO16", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Simple 32bit reloc. */
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HOWTO (R_V850_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_dont,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_V850_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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/* Simple 16bit reloc. */
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HOWTO (R_V850_16, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_V850_16", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Simple 8bit reloc. */
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HOWTO (R_V850_8, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_V850_8", /* name */
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true, /* partial_inplace */
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0xff, /* src_mask */
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0xff, /* dst_mask */
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false), /* pcrel_offset */
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/* Offset from the short data area pointer. */
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HOWTO (R_V850_SDA_OFFSET, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_V850_SDA_OFFSET", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Offset from the zero data area pointer. */
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HOWTO (R_V850_ZDA_OFFSET, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_V850_ZDA_OFFSET", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Offset from the tiny data area pointer. */
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HOWTO (R_V850_TDA_OFFSET, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_V850_TDA_OFFSET", /* name */
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true, /* partial_inplace */
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0xff, /* src_mask */
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0xff, /* dst_mask */
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false), /* pcrel_offset */
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};
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/* Map BFD reloc types to V850 ELF reloc types. */
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struct v850_reloc_map
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{
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unsigned char bfd_reloc_val;
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unsigned char elf_reloc_val;
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};
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static const struct v850_reloc_map v850_reloc_map[] =
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{
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{ BFD_RELOC_NONE, R_V850_NONE, },
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{ BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL, },
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{ BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL, },
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{ BFD_RELOC_HI16_S, R_V850_HI16_S, },
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{ BFD_RELOC_HI16, R_V850_HI16, },
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{ BFD_RELOC_LO16, R_V850_LO16, },
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{ BFD_RELOC_32, R_V850_32, },
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{ BFD_RELOC_16, R_V850_16, },
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{ BFD_RELOC_8, R_V850_8, },
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{ BFD_RELOC_V850_TDA_OFFSET, R_V850_TDA_OFFSET, },
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{ BFD_RELOC_V850_SDA_OFFSET, R_V850_SDA_OFFSET, },
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{ BFD_RELOC_V850_ZDA_OFFSET, R_V850_ZDA_OFFSET, },
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};
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static reloc_howto_type *
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bfd_elf32_bfd_reloc_type_lookup (abfd, code)
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bfd *abfd;
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bfd_reloc_code_real_type code;
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{
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unsigned int i;
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for (i = 0;
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i < sizeof (v850_reloc_map) / sizeof (struct v850_reloc_map);
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i++)
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{
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if (v850_reloc_map[i].bfd_reloc_val == code)
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return &elf_v850_howto_table[v850_reloc_map[i].elf_reloc_val];
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}
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return NULL;
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}
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/* Set the howto pointer for an V850 ELF reloc. */
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static void
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v850_info_to_howto_rel (abfd, cache_ptr, dst)
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bfd *abfd;
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arelent *cache_ptr;
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Elf32_Internal_Rel *dst;
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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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BFD_ASSERT (r_type < (unsigned int) R_V850_max);
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cache_ptr->howto = &elf_v850_howto_table[r_type];
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}
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static bfd_reloc_status_type
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bfd_elf32_v850_reloc (abfd, reloc, symbol, data, isection, obfd, err)
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bfd *abfd;
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arelent *reloc;
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asymbol *symbol;
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PTR data;
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asection *isection;
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bfd *obfd;
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char **err;
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{
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if (obfd != (bfd *) NULL
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&& (symbol->flags & BSF_SECTION_SYM) == 0
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&& (! reloc->howto->partial_inplace
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|| reloc->addend == 0))
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{
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reloc->address += isection->output_offset;
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return bfd_reloc_ok;
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}
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else if (obfd != NULL)
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{
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return bfd_reloc_continue;
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}
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/* Catch relocs involving undefined symbols. */
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if (bfd_is_und_section (symbol->section)
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&& (symbol->flags & BSF_WEAK) == 0
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&& obfd == NULL)
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return bfd_reloc_undefined;
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/* We handle final linking of some relocs ourselves. */
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{
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long relocation, insn;
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/* Is the address of the relocation really within the section? */
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if (reloc->address > isection->_cooked_size)
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return bfd_reloc_outofrange;
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/* Work out which section the relocation is targetted at and the
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initial relocation command value. */
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/* Get symbol value. (Common symbols are special.) */
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if (bfd_is_com_section (symbol->section))
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relocation = 0;
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else
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relocation = symbol->value;
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/* Convert input-section-relative symbol value to absolute + addend. */
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relocation += symbol->section->output_section->vma;
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relocation += symbol->section->output_offset;
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relocation += reloc->addend;
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if (reloc->howto->pc_relative == true)
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{
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/* Here the variable relocation holds the final address of the
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symbol we are relocating against, plus any addend. */
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relocation -= isection->output_section->vma + isection->output_offset;
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/* Deal with pcrel_offset */
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relocation -= reloc->address;
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}
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/* I've got no clue... */
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reloc->addend = 0;
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if (reloc->howto->type == R_V850_22_PCREL)
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{
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if (relocation > 0x1ffff || relocation < -0x200000)
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return bfd_reloc_overflow;
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if ((relocation % 2) != 0)
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return bfd_reloc_dangerous;
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insn = bfd_get_32 (abfd, (bfd_byte *) data + reloc->address);
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insn &= ~0xfffe003f;
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insn |= (((relocation & 0xfffe) << 16)
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| ((relocation & 0x3f0000) >> 16));
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bfd_put_32 (abfd, insn, (bfd_byte *)data + reloc->address);
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return bfd_reloc_ok;
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}
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else if (reloc->howto->type == R_V850_9_PCREL)
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{
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if (relocation > 0xff || relocation < -0x100)
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return bfd_reloc_overflow;
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if ((relocation % 2) != 0)
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return bfd_reloc_dangerous;
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insn = bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
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insn &= 0xf870;
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insn |= ((relocation & 0x1f0) << 7) | ((relocation & 0x0e) << 3);
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bfd_put_16 (abfd, insn, (bfd_byte *)data + reloc->address);
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return bfd_reloc_ok;
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}
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else if (reloc->howto->type == R_V850_HI16_S)
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{
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relocation += bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
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relocation = (relocation >> 16) + ((relocation & 0x8000) != 0);
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bfd_put_16 (abfd, relocation, (bfd_byte *)data + reloc->address);
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return bfd_reloc_ok;
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}
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else if (reloc->howto->type == R_V850_HI16)
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{
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relocation += bfd_get_16 (abfd, (bfd_byte *) data + reloc->address);
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relocation = (relocation >> 16);
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bfd_put_16 (abfd, relocation, (bfd_byte *)data + reloc->address);
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return bfd_reloc_ok;
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}
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else
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return bfd_reloc_notsupported;
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}
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return bfd_reloc_continue;
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}
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static boolean bfd_elf32_v850_is_local_label PARAMS ((bfd *, asymbol *));
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/*ARGSUSED*/
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static boolean
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bfd_elf32_v850_is_local_label (abfd, symbol)
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bfd *abfd;
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asymbol *symbol;
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{
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return ((symbol->name[0] == '.' && (symbol->name[1] == 'L' || symbol->name[1] == '.'))
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|| (symbol->name[0] == '_' && symbol->name[1] == '.' && symbol->name[2] == 'L'
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&& symbol->name[3] == '_'));
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}
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/* Perform a relocation as part of a final link. */
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static bfd_reloc_status_type
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elf32_v850_bfd_final_link_relocate (howto, input_bfd, output_bfd,
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input_section, contents, offset, value,
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addend, info, sym_sec, is_local)
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reloc_howto_type *howto;
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bfd *input_bfd;
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bfd *output_bfd;
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asection *input_section;
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bfd_byte *contents;
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bfd_vma offset;
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bfd_vma value;
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bfd_vma addend;
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struct bfd_link_info *info;
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asection *sym_sec;
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int is_local;
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{
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unsigned long insn;
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unsigned long r_type = howto->type;
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unsigned long r_format = howto->bitsize;
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bfd_byte *hit_data = contents + offset;
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boolean r_pcrel = howto->pc_relative;
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switch (r_type)
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{
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case R_V850_9_PCREL:
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value -= (input_section->output_section->vma
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+ input_section->output_offset);
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value -= offset;
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if ((long)value > 0xff || (long)value < -0x100)
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return bfd_reloc_overflow;
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if ((value % 2) != 0)
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return bfd_reloc_dangerous;
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insn = bfd_get_16 (input_bfd, hit_data);
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insn &= 0x078f;
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insn |= ((value & 0x1f0) << 7) | ((value & 0x0e) << 3);
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bfd_put_16 (input_bfd, insn, hit_data);
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return bfd_reloc_ok;
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case R_V850_22_PCREL:
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value -= (input_section->output_section->vma
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+ input_section->output_offset);
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value -= offset;
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|
if ((long)value > 0x1ffff || (long)value < -0x200000)
|
|
return bfd_reloc_overflow;
|
|
|
|
if ((value % 2) != 0)
|
|
return bfd_reloc_dangerous;
|
|
|
|
insn = bfd_get_32 (input_bfd, hit_data);
|
|
insn &= 0x1ffc0;
|
|
insn |= (((value & 0xfffe) << 16) | ((value & 0x3f0000) >> 16));
|
|
bfd_put_32 (input_bfd, insn, hit_data);
|
|
return bfd_reloc_ok;
|
|
|
|
case R_V850_HI16_S:
|
|
value += (short)bfd_get_16 (input_bfd, hit_data);
|
|
value = (value >> 16) + ((value & 0x8000) != 0);
|
|
|
|
if ((long)value > 0x7fff || (long)value < -0x8000)
|
|
return bfd_reloc_overflow;
|
|
|
|
bfd_put_16 (input_bfd, value, hit_data);
|
|
return bfd_reloc_ok;
|
|
|
|
case R_V850_HI16:
|
|
value += (short)bfd_get_16 (input_bfd, hit_data);
|
|
value >>= 16;
|
|
|
|
if ((long)value > 0x7fff || (long)value < -0x8000)
|
|
return bfd_reloc_overflow;
|
|
|
|
bfd_put_16 (input_bfd, value, hit_data);
|
|
return bfd_reloc_ok;
|
|
|
|
case R_V850_LO16:
|
|
value += (short)bfd_get_16 (input_bfd, hit_data);
|
|
value &= 0xffff;
|
|
|
|
bfd_put_16 (input_bfd, value, hit_data);
|
|
return bfd_reloc_ok;
|
|
|
|
case R_V850_16:
|
|
case R_V850_ZDA_OFFSET:
|
|
value += (short)bfd_get_16 (input_bfd, hit_data);
|
|
|
|
if ((long)value > 0x7fff || (long)value < -0x8000)
|
|
return bfd_reloc_overflow;
|
|
|
|
bfd_put_16 (input_bfd, value, hit_data);
|
|
return bfd_reloc_ok;
|
|
|
|
case R_V850_32:
|
|
value += bfd_get_32 (input_bfd, hit_data);
|
|
bfd_put_32 (input_bfd, value, hit_data);
|
|
return bfd_reloc_ok;
|
|
|
|
case R_V850_8:
|
|
value += (char)bfd_get_8 (input_bfd, hit_data);
|
|
|
|
if ((long)value > 0x7f || (long)value < -0x80)
|
|
return bfd_reloc_overflow;
|
|
|
|
bfd_put_8 (input_bfd, value, hit_data);
|
|
return bfd_reloc_ok;
|
|
|
|
case R_V850_SDA_OFFSET:
|
|
{
|
|
unsigned long gp;
|
|
struct bfd_link_hash_entry *h;
|
|
|
|
value += (short)bfd_get_16 (input_bfd, hit_data);
|
|
|
|
/* Get the value of __gp. */
|
|
h = bfd_link_hash_lookup (info->hash, "__gp", false,
|
|
false, true);
|
|
if (h == (struct bfd_link_hash_entry *) NULL
|
|
|| h->type != bfd_link_hash_defined)
|
|
return bfd_reloc_undefined;
|
|
|
|
gp = (h->u.def.value
|
|
+ h->u.def.section->output_section->vma
|
|
+ h->u.def.section->output_offset);
|
|
value -= gp;
|
|
|
|
if ((long)value > 0x7fff || (long)value < -0x8000)
|
|
return bfd_reloc_overflow;
|
|
|
|
bfd_put_16 (input_bfd, value, hit_data);
|
|
return bfd_reloc_ok;
|
|
}
|
|
|
|
case R_V850_TDA_OFFSET:
|
|
{
|
|
unsigned long ep;
|
|
struct bfd_link_hash_entry *h;
|
|
|
|
insn = bfd_get_16 (input_bfd, hit_data);
|
|
|
|
/* Get the value of __ep. */
|
|
h = bfd_link_hash_lookup (info->hash, "__ep", false,
|
|
false, true);
|
|
if (h == (struct bfd_link_hash_entry *) NULL
|
|
|| h->type != bfd_link_hash_defined)
|
|
return bfd_reloc_undefined;
|
|
|
|
ep = (h->u.def.value
|
|
+ h->u.def.section->output_section->vma
|
|
+ h->u.def.section->output_offset);
|
|
value -= ep;
|
|
|
|
|
|
/* Overflow computation and operand insertion is complicated
|
|
by valid offsets and insertions changing depending on the
|
|
instruction being used! */
|
|
if ((insn & 0x0780) == 0x0500)
|
|
{
|
|
value += ((insn & 0x7f) << 1);
|
|
|
|
/* Handle sld.w and sst.w -- 8 bit unsigned offset */
|
|
if ((long) value > 0xff || (long) value < 0)
|
|
return bfd_reloc_overflow;
|
|
|
|
if ((value % 2) != 0)
|
|
return bfd_reloc_dangerous;
|
|
|
|
insn &= 0xff81;
|
|
insn |= (value >> 1);
|
|
bfd_put_16 (input_bfd, insn, hit_data);
|
|
return bfd_reloc_ok;
|
|
}
|
|
|
|
if ((insn & 0x0780) == 0x0400 || (insn & 0x0780) == 0x0480)
|
|
{
|
|
value += ((insn & 0x7f) << 1);
|
|
|
|
/* Handle sld.h and sst.h -- 8 bit unsigned offset */
|
|
if ((long) value > 0xff || (long) value < 0)
|
|
return bfd_reloc_overflow;
|
|
|
|
if ((value % 2) != 0)
|
|
return bfd_reloc_dangerous;
|
|
|
|
insn &= 0xff80;
|
|
insn |= (value >> 1);
|
|
bfd_put_16 (input_bfd, insn, hit_data);
|
|
return bfd_reloc_ok;
|
|
}
|
|
|
|
if ((insn & 0x0780) == 0x0300 || (insn & 0x0780) == 0x0380)
|
|
{
|
|
value += (insn & 0x7f);
|
|
|
|
/* Handle sld.b and sst.b -- 7 bit unsigned offset */
|
|
if ((long) value > 0x7f || (long) value < 0)
|
|
return bfd_reloc_overflow;
|
|
insn &= 0xff80;
|
|
insn |= value;
|
|
bfd_put_16 (input_bfd, insn, hit_data);
|
|
return bfd_reloc_ok;
|
|
}
|
|
|
|
/* Guess (XXX) that it's a movea instruction or something
|
|
similar. */
|
|
value += (short)insn;
|
|
if ((long)value > 0x7fff || (long)value < -0x8000)
|
|
return bfd_reloc_overflow;
|
|
|
|
bfd_put_16 (input_bfd, value, hit_data);
|
|
return bfd_reloc_ok;
|
|
}
|
|
|
|
case R_V850_NONE:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
/* Relocate an V850 ELF section. */
|
|
|
|
static boolean
|
|
v850_elf_relocate_section (output_bfd, info, input_bfd, input_section,
|
|
contents, relocs, local_syms, local_sections)
|
|
bfd *output_bfd;
|
|
struct bfd_link_info *info;
|
|
bfd *input_bfd;
|
|
asection *input_section;
|
|
bfd_byte *contents;
|
|
Elf_Internal_Rela *relocs;
|
|
Elf_Internal_Sym *local_syms;
|
|
asection **local_sections;
|
|
{
|
|
Elf_Internal_Shdr *symtab_hdr;
|
|
struct elf_link_hash_entry **sym_hashes;
|
|
Elf_Internal_Rela *rel, *relend;
|
|
|
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
|
sym_hashes = elf_sym_hashes (input_bfd);
|
|
|
|
rel = relocs;
|
|
relend = relocs + input_section->reloc_count;
|
|
for (; rel < relend; rel++)
|
|
{
|
|
int r_type;
|
|
reloc_howto_type *howto;
|
|
unsigned long r_symndx;
|
|
Elf_Internal_Sym *sym;
|
|
asection *sec;
|
|
struct elf_link_hash_entry *h;
|
|
bfd_vma relocation;
|
|
bfd_reloc_status_type r;
|
|
|
|
if (info->relocateable)
|
|
{
|
|
/* This is a relocateable link. We don't have to change
|
|
anything, unless the reloc is against a section symbol,
|
|
in which case we have to adjust according to where the
|
|
section symbol winds up in the output section. */
|
|
if (r_symndx < symtab_hdr->sh_info)
|
|
{
|
|
sym = local_syms + r_symndx;
|
|
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
|
|
{
|
|
sec = local_sections[r_symndx];
|
|
rel->r_addend += sec->output_offset + sym->st_value;
|
|
}
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
r_type = ELF32_R_TYPE (rel->r_info);
|
|
|
|
howto = elf_v850_howto_table + r_type;
|
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
|
|
|
/* This is a final link. */
|
|
h = NULL;
|
|
sym = NULL;
|
|
sec = NULL;
|
|
if (r_symndx < symtab_hdr->sh_info)
|
|
{
|
|
sym = local_syms + r_symndx;
|
|
sec = local_sections[r_symndx];
|
|
relocation = (sec->output_section->vma
|
|
+ sec->output_offset
|
|
+ sym->st_value);
|
|
}
|
|
else
|
|
{
|
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
|
while (h->root.type == bfd_link_hash_indirect
|
|
|| h->root.type == bfd_link_hash_warning)
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
|
if (h->root.type == bfd_link_hash_defined
|
|
|| h->root.type == bfd_link_hash_defweak)
|
|
{
|
|
sec = h->root.u.def.section;
|
|
relocation = (h->root.u.def.value
|
|
+ sec->output_section->vma
|
|
+ sec->output_offset);
|
|
}
|
|
else if (h->root.type == bfd_link_hash_undefweak)
|
|
relocation = 0;
|
|
else
|
|
{
|
|
if (! ((*info->callbacks->undefined_symbol)
|
|
(info, h->root.root.string, input_bfd,
|
|
input_section, rel->r_offset)))
|
|
return false;
|
|
relocation = 0;
|
|
}
|
|
}
|
|
|
|
/* FIXME: We should use the addend, but the COFF relocations
|
|
don't. */
|
|
r = elf32_v850_bfd_final_link_relocate (howto, input_bfd, output_bfd,
|
|
input_section,
|
|
contents, rel->r_offset,
|
|
relocation, rel->r_addend,
|
|
info, sec, h == NULL);
|
|
|
|
if (r != bfd_reloc_ok)
|
|
{
|
|
switch (r)
|
|
{
|
|
default:
|
|
case bfd_reloc_outofrange:
|
|
abort ();
|
|
case bfd_reloc_overflow:
|
|
{
|
|
const char *name;
|
|
|
|
if (h != NULL)
|
|
name = h->root.root.string;
|
|
else
|
|
{
|
|
name = (bfd_elf_string_from_elf_section
|
|
(input_bfd, symtab_hdr->sh_link, sym->st_name));
|
|
if (name == NULL)
|
|
return false;
|
|
if (*name == '\0')
|
|
name = bfd_section_name (input_bfd, sec);
|
|
}
|
|
if (! ((*info->callbacks->reloc_overflow)
|
|
(info, name, howto->name, (bfd_vma) 0,
|
|
input_bfd, input_section, rel->r_offset)))
|
|
return false;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
#define bfd_elf32_bfd_is_local_label bfd_elf32_v850_is_local_label
|
|
|
|
#define TARGET_LITTLE_SYM bfd_elf32_v850_vec
|
|
#define TARGET_LITTLE_NAME "elf32-v850"
|
|
#define ELF_ARCH bfd_arch_v850
|
|
#define ELF_MACHINE_CODE EM_CYGNUS_V850
|
|
#define ELF_MAXPAGESIZE 0x1000
|
|
|
|
#define elf_info_to_howto 0
|
|
#define elf_info_to_howto_rel v850_info_to_howto_rel
|
|
#define elf_backend_relocate_section v850_elf_relocate_section
|
|
|
|
|
|
#define elf_symbol_leading_char '_'
|
|
|
|
#include "elf32-target.h"
|