1405 lines
41 KiB
C
1405 lines
41 KiB
C
/* FRV-specific support for 32-bit ELF.
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Copyright 2002, 2003 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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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "elf-bfd.h"
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#include "elf/frv.h"
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/* Forward declarations. */
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static bfd_reloc_status_type elf32_frv_relocate_lo16
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PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
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static bfd_reloc_status_type elf32_frv_relocate_hi16
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PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
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static bfd_reloc_status_type elf32_frv_relocate_label24
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PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
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static bfd_reloc_status_type elf32_frv_relocate_gprel12
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PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
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bfd_byte *, bfd_vma));
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static bfd_reloc_status_type elf32_frv_relocate_gprelu12
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PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
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bfd_byte *, bfd_vma));
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static bfd_reloc_status_type elf32_frv_relocate_gprello
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PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
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bfd_byte *, bfd_vma));
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static bfd_reloc_status_type elf32_frv_relocate_gprelhi
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PARAMS ((struct bfd_link_info *, bfd *, asection *, Elf_Internal_Rela *,
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bfd_byte *, bfd_vma));
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static reloc_howto_type *frv_reloc_type_lookup
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PARAMS ((bfd *, bfd_reloc_code_real_type));
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static void frv_info_to_howto_rela
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PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
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static bfd_boolean elf32_frv_relocate_section
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PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
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Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
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static bfd_boolean elf32_frv_add_symbol_hook
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PARAMS (( bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
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const char **, flagword *, asection **, bfd_vma *));
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static bfd_reloc_status_type frv_final_link_relocate
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PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
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Elf_Internal_Rela *, bfd_vma));
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static bfd_boolean elf32_frv_gc_sweep_hook
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PARAMS ((bfd *, struct bfd_link_info *, asection *, const
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Elf_Internal_Rela *));
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static asection * elf32_frv_gc_mark_hook
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PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
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struct elf_link_hash_entry *, Elf_Internal_Sym *));
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static bfd_boolean elf32_frv_check_relocs
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PARAMS ((bfd *, struct bfd_link_info *, asection *,
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const Elf_Internal_Rela *));
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static int elf32_frv_machine
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PARAMS ((bfd *));
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static bfd_boolean elf32_frv_object_p
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PARAMS ((bfd *));
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static bfd_boolean frv_elf_set_private_flags
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PARAMS ((bfd *, flagword));
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static bfd_boolean frv_elf_copy_private_bfd_data
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PARAMS ((bfd *, bfd *));
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static bfd_boolean frv_elf_merge_private_bfd_data
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PARAMS ((bfd *, bfd *));
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static bfd_boolean frv_elf_print_private_bfd_data
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PARAMS ((bfd *, PTR));
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static reloc_howto_type elf32_frv_howto_table [] =
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{
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/* This reloc does nothing. */
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HOWTO (R_FRV_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_FRV_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 32 bit absolute relocation. */
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HOWTO (R_FRV_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_FRV_32", /* name */
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FALSE, /* 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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/* A 16 bit pc-relative relocation. */
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HOWTO (R_FRV_LABEL16, /* type */
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2, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* 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_elf_generic_reloc, /* special_function */
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"R_FRV_LABEL16", /* name */
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FALSE, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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/* A 24-bit pc-relative relocation. */
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HOWTO (R_FRV_LABEL24, /* 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_elf_generic_reloc, /* special_function */
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"R_FRV_LABEL24", /* name */
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FALSE, /* partial_inplace */
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0x7e03ffff, /* src_mask */
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0x7e03ffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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HOWTO (R_FRV_LO16, /* type */
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0, /* rightshift */
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2, /* 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_FRV_LO16", /* name */
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FALSE, /* 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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HOWTO (R_FRV_HI16, /* type */
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0, /* rightshift */
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2, /* 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_FRV_HI16", /* name */
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FALSE, /* 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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HOWTO (R_FRV_GPREL12, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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12, /* 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_FRV_GPREL12", /* name */
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FALSE, /* partial_inplace */
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0xfff, /* src_mask */
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0xfff, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_FRV_GPRELU12, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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12, /* 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_FRV_GPRELU12", /* name */
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FALSE, /* partial_inplace */
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0xfff, /* src_mask */
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0x3f03f, /* dst_mask */
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FALSE), /* pcrel_offset */
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HOWTO (R_FRV_GPREL32, /* 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_FRV_GPREL32", /* name */
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FALSE, /* 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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HOWTO (R_FRV_GPRELHI, /* type */
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0, /* rightshift */
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2, /* 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_FRV_GPRELHI", /* name */
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FALSE, /* 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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HOWTO (R_FRV_GPRELLO, /* type */
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0, /* rightshift */
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2, /* 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_FRV_GPRELLO", /* name */
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FALSE, /* 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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};
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/* GNU extension to record C++ vtable hierarchy. */
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static reloc_howto_type elf32_frv_vtinherit_howto =
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HOWTO (R_FRV_GNU_VTINHERIT, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* 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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NULL, /* special_function */
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"R_FRV_GNU_VTINHERIT", /* 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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/* GNU extension to record C++ vtable member usage. */
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static reloc_howto_type elf32_frv_vtentry_howto =
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HOWTO (R_FRV_GNU_VTENTRY, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* 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_rel_vtable_reloc_fn, /* special_function */
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"R_FRV_GNU_VTENTRY", /* 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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/* Map BFD reloc types to FRV ELF reloc types. */
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#if 0
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struct frv_reloc_map
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{
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unsigned int bfd_reloc_val;
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unsigned int frv_reloc_val;
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};
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static const struct frv_reloc_map frv_reloc_map [] =
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{
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{ BFD_RELOC_NONE, R_FRV_NONE },
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{ BFD_RELOC_32, R_FRV_32 },
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{ BFD_RELOC_FRV_LABEL16, R_FRV_LABEL16 },
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{ BFD_RELOC_FRV_LABEL24, R_FRV_LABEL24 },
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{ BFD_RELOC_FRV_LO16, R_FRV_LO16 },
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{ BFD_RELOC_FRV_HI16, R_FRV_HI16 },
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{ BFD_RELOC_FRV_GPREL12, R_FRV_GPREL12 },
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{ BFD_RELOC_FRV_GPRELU12, R_FRV_GPRELU12 },
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{ BFD_RELOC_FRV_GPREL32, R_FRV_GPREL32 },
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{ BFD_RELOC_FRV_GPRELHI, R_FRV_GPRELHI },
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{ BFD_RELOC_FRV_GPRELLO, R_FRV_GPRELLO },
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{ BFD_RELOC_VTABLE_INHERIT, R_FRV_GNU_VTINHERIT },
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{ BFD_RELOC_VTABLE_ENTRY, R_FRV_GNU_VTENTRY },
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};
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#endif
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/* Handle an FRV small data reloc. */
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static bfd_reloc_status_type
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elf32_frv_relocate_gprel12 (info, input_bfd, input_section, relocation,
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contents, value)
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struct bfd_link_info *info;
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bfd *input_bfd;
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asection *input_section;
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Elf_Internal_Rela *relocation;
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bfd_byte *contents;
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bfd_vma value;
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{
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bfd_vma insn;
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bfd_vma gp;
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struct bfd_link_hash_entry *h;
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h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
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gp = (h->u.def.value
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+ h->u.def.section->output_section->vma
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+ h->u.def.section->output_offset);
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value -= input_section->output_section->vma;
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value -= (gp - input_section->output_section->vma);
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insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
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value += relocation->r_addend;
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if ((long) value > 0x7ff || (long) value < -0x800)
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return bfd_reloc_overflow;
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bfd_put_32 (input_bfd,
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(insn & 0xfffff000) | (value & 0xfff),
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contents + relocation->r_offset);
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return bfd_reloc_ok;
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}
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/* Handle an FRV small data reloc. for the u12 field. */
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static bfd_reloc_status_type
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elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, relocation,
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contents, value)
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struct bfd_link_info *info;
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bfd *input_bfd;
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asection *input_section;
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Elf_Internal_Rela *relocation;
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bfd_byte *contents;
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bfd_vma value;
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{
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bfd_vma insn;
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bfd_vma gp;
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struct bfd_link_hash_entry *h;
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bfd_vma mask;
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h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
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gp = (h->u.def.value
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+ h->u.def.section->output_section->vma
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+ h->u.def.section->output_offset);
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value -= input_section->output_section->vma;
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value -= (gp - input_section->output_section->vma);
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insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
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value += relocation->r_addend;
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if ((long) value > 0x7ff || (long) value < -0x800)
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return bfd_reloc_overflow;
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/* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
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mask = 0x3f03f;
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insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
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bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
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return bfd_reloc_ok;
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}
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/* Handle an FRV ELF HI16 reloc. */
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static bfd_reloc_status_type
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elf32_frv_relocate_hi16 (input_bfd, relhi, contents, value)
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bfd *input_bfd;
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Elf_Internal_Rela *relhi;
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bfd_byte *contents;
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bfd_vma value;
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{
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bfd_vma insn;
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insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
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value += relhi->r_addend;
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value = ((value >> 16) & 0xffff);
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insn = (insn & 0xffff0000) | value;
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if ((long) value > 0xffff || (long) value < -0x10000)
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return bfd_reloc_overflow;
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bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
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return bfd_reloc_ok;
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}
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static bfd_reloc_status_type
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elf32_frv_relocate_lo16 (input_bfd, rello, contents, value)
|
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bfd *input_bfd;
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Elf_Internal_Rela *rello;
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bfd_byte *contents;
|
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bfd_vma value;
|
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{
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bfd_vma insn;
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insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
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value += rello->r_addend;
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value = value & 0xffff;
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insn = (insn & 0xffff0000) | value;
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if ((long) value > 0xffff || (long) value < -0x10000)
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return bfd_reloc_overflow;
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bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
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return bfd_reloc_ok;
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}
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|
||
/* Perform the relocation for the CALL label24 instruction. */
|
||
|
||
static bfd_reloc_status_type
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elf32_frv_relocate_label24 (input_bfd, input_section, rello, contents, value)
|
||
bfd *input_bfd;
|
||
asection *input_section;
|
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Elf_Internal_Rela *rello;
|
||
bfd_byte *contents;
|
||
bfd_vma value;
|
||
{
|
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bfd_vma insn;
|
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bfd_vma label6;
|
||
bfd_vma label18;
|
||
|
||
/* The format for the call instruction is:
|
||
|
||
0 000000 0001111 000000000000000000
|
||
label6 opcode label18
|
||
|
||
The branch calculation is: pc + (4*label24)
|
||
where label24 is the concatenation of label6 and label18. */
|
||
|
||
/* Grab the instruction. */
|
||
insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
|
||
|
||
value -= input_section->output_section->vma + input_section->output_offset;
|
||
value -= rello->r_offset;
|
||
value += rello->r_addend;
|
||
|
||
value = value >> 2;
|
||
|
||
label6 = value & 0xfc0000;
|
||
label6 = label6 << 7;
|
||
|
||
label18 = value & 0x3ffff;
|
||
|
||
insn = insn & 0x803c0000;
|
||
insn = insn | label6;
|
||
insn = insn | label18;
|
||
|
||
bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
|
||
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
static bfd_reloc_status_type
|
||
elf32_frv_relocate_gprelhi (info, input_bfd, input_section, relocation,
|
||
contents, value)
|
||
struct bfd_link_info *info;
|
||
bfd *input_bfd;
|
||
asection *input_section;
|
||
Elf_Internal_Rela *relocation;
|
||
bfd_byte *contents;
|
||
bfd_vma value;
|
||
{
|
||
bfd_vma insn;
|
||
bfd_vma gp;
|
||
struct bfd_link_hash_entry *h;
|
||
|
||
h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
|
||
|
||
gp = (h->u.def.value
|
||
+ h->u.def.section->output_section->vma
|
||
+ h->u.def.section->output_offset);
|
||
|
||
value -= input_section->output_section->vma;
|
||
value -= (gp - input_section->output_section->vma);
|
||
value += relocation->r_addend;
|
||
value = ((value >> 16) & 0xffff);
|
||
|
||
if ((long) value > 0xffff || (long) value < -0x10000)
|
||
return bfd_reloc_overflow;
|
||
|
||
insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
|
||
insn = (insn & 0xffff0000) | value;
|
||
|
||
bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
static bfd_reloc_status_type
|
||
elf32_frv_relocate_gprello (info, input_bfd, input_section, relocation,
|
||
contents, value)
|
||
struct bfd_link_info *info;
|
||
bfd *input_bfd;
|
||
asection *input_section;
|
||
Elf_Internal_Rela *relocation;
|
||
bfd_byte *contents;
|
||
bfd_vma value;
|
||
{
|
||
bfd_vma insn;
|
||
bfd_vma gp;
|
||
struct bfd_link_hash_entry *h;
|
||
|
||
h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
|
||
|
||
gp = (h->u.def.value
|
||
+ h->u.def.section->output_section->vma
|
||
+ h->u.def.section->output_offset);
|
||
|
||
value -= input_section->output_section->vma;
|
||
value -= (gp - input_section->output_section->vma);
|
||
value += relocation->r_addend;
|
||
value = value & 0xffff;
|
||
|
||
if ((long) value > 0xffff || (long) value < -0x10000)
|
||
return bfd_reloc_overflow;
|
||
|
||
insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
|
||
insn = (insn & 0xffff0000) | value;
|
||
|
||
bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
|
||
|
||
return bfd_reloc_ok;
|
||
}
|
||
|
||
static reloc_howto_type *
|
||
frv_reloc_type_lookup (abfd, code)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
bfd_reloc_code_real_type code;
|
||
{
|
||
switch (code)
|
||
{
|
||
default:
|
||
break;
|
||
|
||
case BFD_RELOC_NONE:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_NONE];
|
||
|
||
case BFD_RELOC_32:
|
||
case BFD_RELOC_CTOR:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_32];
|
||
|
||
case BFD_RELOC_FRV_LABEL16:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
|
||
|
||
case BFD_RELOC_FRV_LABEL24:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
|
||
|
||
case BFD_RELOC_FRV_LO16:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_LO16];
|
||
|
||
case BFD_RELOC_FRV_HI16:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_HI16];
|
||
|
||
case BFD_RELOC_FRV_GPREL12:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
|
||
|
||
case BFD_RELOC_FRV_GPRELU12:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
|
||
|
||
case BFD_RELOC_FRV_GPREL32:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
|
||
|
||
case BFD_RELOC_FRV_GPRELHI:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
|
||
|
||
case BFD_RELOC_FRV_GPRELLO:
|
||
return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
|
||
|
||
case BFD_RELOC_VTABLE_INHERIT:
|
||
return &elf32_frv_vtinherit_howto;
|
||
|
||
case BFD_RELOC_VTABLE_ENTRY:
|
||
return &elf32_frv_vtentry_howto;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/* Set the howto pointer for an FRV ELF reloc. */
|
||
|
||
static void
|
||
frv_info_to_howto_rela (abfd, cache_ptr, dst)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
arelent *cache_ptr;
|
||
Elf_Internal_Rela *dst;
|
||
{
|
||
unsigned int r_type;
|
||
|
||
r_type = ELF32_R_TYPE (dst->r_info);
|
||
switch (r_type)
|
||
{
|
||
case R_FRV_GNU_VTINHERIT:
|
||
cache_ptr->howto = &elf32_frv_vtinherit_howto;
|
||
break;
|
||
|
||
case R_FRV_GNU_VTENTRY:
|
||
cache_ptr->howto = &elf32_frv_vtentry_howto;
|
||
break;
|
||
|
||
default:
|
||
cache_ptr->howto = & elf32_frv_howto_table [r_type];
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Perform a single relocation. By default we use the standard BFD
|
||
routines, but a few relocs, we have to do them ourselves. */
|
||
|
||
static bfd_reloc_status_type
|
||
frv_final_link_relocate (howto, input_bfd, input_section, contents, rel,
|
||
relocation)
|
||
reloc_howto_type *howto;
|
||
bfd *input_bfd;
|
||
asection *input_section;
|
||
bfd_byte *contents;
|
||
Elf_Internal_Rela *rel;
|
||
bfd_vma relocation;
|
||
{
|
||
return _bfd_final_link_relocate (howto, input_bfd, input_section,
|
||
contents, rel->r_offset, relocation,
|
||
rel->r_addend);
|
||
}
|
||
|
||
|
||
/* Relocate an FRV ELF section.
|
||
|
||
The RELOCATE_SECTION function is called by the new ELF backend linker
|
||
to handle the relocations for a section.
|
||
|
||
The relocs are always passed as Rela structures; if the section
|
||
actually uses Rel structures, the r_addend field will always be
|
||
zero.
|
||
|
||
This function is responsible for adjusting the section contents as
|
||
necessary, and (if using Rela relocs and generating a relocatable
|
||
output file) adjusting the reloc addend as necessary.
|
||
|
||
This function does not have to worry about setting the reloc
|
||
address or the reloc symbol index.
|
||
|
||
LOCAL_SYMS is a pointer to the swapped in local symbols.
|
||
|
||
LOCAL_SECTIONS is an array giving the section in the input file
|
||
corresponding to the st_shndx field of each local symbol.
|
||
|
||
The global hash table entry for the global symbols can be found
|
||
via elf_sym_hashes (input_bfd).
|
||
|
||
When generating relocatable output, this function must handle
|
||
STB_LOCAL/STT_SECTION symbols specially. The output symbol is
|
||
going to be the section symbol corresponding to the output
|
||
section, which means that the addend must be adjusted
|
||
accordingly. */
|
||
|
||
static bfd_boolean
|
||
elf32_frv_relocate_section (output_bfd, info, input_bfd, input_section,
|
||
contents, relocs, local_syms, local_sections)
|
||
bfd *output_bfd ATTRIBUTE_UNUSED;
|
||
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;
|
||
Elf_Internal_Rela *relend;
|
||
|
||
if (info->relocatable)
|
||
return TRUE;
|
||
|
||
symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
|
||
sym_hashes = elf_sym_hashes (input_bfd);
|
||
relend = relocs + input_section->reloc_count;
|
||
|
||
for (rel = relocs; rel < relend; rel ++)
|
||
{
|
||
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;
|
||
const char * name = NULL;
|
||
int r_type;
|
||
|
||
r_type = ELF32_R_TYPE (rel->r_info);
|
||
|
||
if ( r_type == R_FRV_GNU_VTINHERIT
|
||
|| r_type == R_FRV_GNU_VTENTRY)
|
||
continue;
|
||
|
||
/* This is a final link. */
|
||
r_symndx = ELF32_R_SYM (rel->r_info);
|
||
howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
|
||
h = NULL;
|
||
sym = NULL;
|
||
sec = NULL;
|
||
|
||
if (r_symndx < symtab_hdr->sh_info)
|
||
{
|
||
sym = local_syms + r_symndx;
|
||
sec = local_sections [r_symndx];
|
||
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
|
||
|
||
name = bfd_elf_string_from_elf_section
|
||
(input_bfd, symtab_hdr->sh_link, sym->st_name);
|
||
name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
|
||
}
|
||
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;
|
||
|
||
name = h->root.root.string;
|
||
|
||
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, TRUE)))
|
||
return FALSE;
|
||
relocation = 0;
|
||
}
|
||
}
|
||
|
||
if (r_type == R_FRV_HI16)
|
||
r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
|
||
|
||
else if (r_type == R_FRV_LO16)
|
||
r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
|
||
|
||
else if (r_type == R_FRV_LABEL24)
|
||
r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
|
||
contents, relocation);
|
||
|
||
else if (r_type == R_FRV_GPREL12)
|
||
r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
|
||
contents, relocation);
|
||
|
||
else if (r_type == R_FRV_GPRELU12)
|
||
r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
|
||
contents, relocation);
|
||
|
||
else if (r_type == R_FRV_GPRELLO)
|
||
r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
|
||
contents, relocation);
|
||
|
||
else if (r_type == R_FRV_GPRELHI)
|
||
r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
|
||
contents, relocation);
|
||
|
||
else
|
||
r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
|
||
rel, relocation);
|
||
|
||
if (r != bfd_reloc_ok)
|
||
{
|
||
const char * msg = (const char *) NULL;
|
||
|
||
switch (r)
|
||
{
|
||
case bfd_reloc_overflow:
|
||
r = info->callbacks->reloc_overflow
|
||
(info, name, howto->name, (bfd_vma) 0,
|
||
input_bfd, input_section, rel->r_offset);
|
||
break;
|
||
|
||
case bfd_reloc_undefined:
|
||
r = info->callbacks->undefined_symbol
|
||
(info, name, input_bfd, input_section, rel->r_offset, TRUE);
|
||
break;
|
||
|
||
case bfd_reloc_outofrange:
|
||
msg = _("internal error: out of range error");
|
||
break;
|
||
|
||
case bfd_reloc_notsupported:
|
||
msg = _("internal error: unsupported relocation error");
|
||
break;
|
||
|
||
case bfd_reloc_dangerous:
|
||
msg = _("internal error: dangerous relocation");
|
||
break;
|
||
|
||
default:
|
||
msg = _("internal error: unknown error");
|
||
break;
|
||
}
|
||
|
||
if (msg)
|
||
r = info->callbacks->warning
|
||
(info, msg, name, input_bfd, input_section, rel->r_offset);
|
||
|
||
if (! r)
|
||
return FALSE;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/* Return the section that should be marked against GC for a given
|
||
relocation. */
|
||
|
||
static asection *
|
||
elf32_frv_gc_mark_hook (sec, info, rel, h, sym)
|
||
asection *sec;
|
||
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
||
Elf_Internal_Rela *rel;
|
||
struct elf_link_hash_entry *h;
|
||
Elf_Internal_Sym *sym;
|
||
{
|
||
if (h != NULL)
|
||
{
|
||
switch (ELF32_R_TYPE (rel->r_info))
|
||
{
|
||
case R_FRV_GNU_VTINHERIT:
|
||
case R_FRV_GNU_VTENTRY:
|
||
break;
|
||
|
||
default:
|
||
switch (h->root.type)
|
||
{
|
||
default:
|
||
break;
|
||
|
||
case bfd_link_hash_defined:
|
||
case bfd_link_hash_defweak:
|
||
return h->root.u.def.section;
|
||
|
||
case bfd_link_hash_common:
|
||
return h->root.u.c.p->section;
|
||
}
|
||
}
|
||
}
|
||
else
|
||
return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/* Update the got entry reference counts for the section being removed. */
|
||
|
||
static bfd_boolean
|
||
elf32_frv_gc_sweep_hook (abfd, info, sec, relocs)
|
||
bfd *abfd ATTRIBUTE_UNUSED;
|
||
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
||
asection *sec ATTRIBUTE_UNUSED;
|
||
const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
|
||
{
|
||
return TRUE;
|
||
}
|
||
|
||
|
||
/* Hook called by the linker routine which adds symbols from an object
|
||
file. We use it to put .comm items in .scomm, and not .comm. */
|
||
|
||
static bfd_boolean
|
||
elf32_frv_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
const Elf_Internal_Sym *sym;
|
||
const char **namep ATTRIBUTE_UNUSED;
|
||
flagword *flagsp ATTRIBUTE_UNUSED;
|
||
asection **secp;
|
||
bfd_vma *valp;
|
||
{
|
||
if (sym->st_shndx == SHN_COMMON
|
||
&& !info->relocatable
|
||
&& (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
|
||
{
|
||
/* Common symbols less than or equal to -G nn bytes are
|
||
automatically put into .sbss. */
|
||
|
||
asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
|
||
|
||
if (scomm == NULL)
|
||
{
|
||
scomm = bfd_make_section (abfd, ".scommon");
|
||
if (scomm == NULL
|
||
|| !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC
|
||
| SEC_IS_COMMON
|
||
| SEC_LINKER_CREATED)))
|
||
return FALSE;
|
||
}
|
||
|
||
*secp = scomm;
|
||
*valp = sym->st_size;
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
/* Look through the relocs for a section during the first phase.
|
||
Since we don't do .gots or .plts, we just need to consider the
|
||
virtual table relocs for gc. */
|
||
|
||
static bfd_boolean
|
||
elf32_frv_check_relocs (abfd, info, sec, relocs)
|
||
bfd *abfd;
|
||
struct bfd_link_info *info;
|
||
asection *sec;
|
||
const Elf_Internal_Rela *relocs;
|
||
{
|
||
Elf_Internal_Shdr *symtab_hdr;
|
||
struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
|
||
const Elf_Internal_Rela *rel;
|
||
const Elf_Internal_Rela *rel_end;
|
||
|
||
if (info->relocatable)
|
||
return TRUE;
|
||
|
||
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
||
sym_hashes = elf_sym_hashes (abfd);
|
||
sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
|
||
if (!elf_bad_symtab (abfd))
|
||
sym_hashes_end -= symtab_hdr->sh_info;
|
||
|
||
rel_end = relocs + sec->reloc_count;
|
||
for (rel = relocs; rel < rel_end; rel++)
|
||
{
|
||
struct elf_link_hash_entry *h;
|
||
unsigned long r_symndx;
|
||
|
||
r_symndx = ELF32_R_SYM (rel->r_info);
|
||
if (r_symndx < symtab_hdr->sh_info)
|
||
h = NULL;
|
||
else
|
||
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
||
|
||
switch (ELF32_R_TYPE (rel->r_info))
|
||
{
|
||
/* This relocation describes the C++ object vtable hierarchy.
|
||
Reconstruct it for later use during GC. */
|
||
case R_FRV_GNU_VTINHERIT:
|
||
if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
||
return FALSE;
|
||
break;
|
||
|
||
/* This relocation describes which C++ vtable entries are actually
|
||
used. Record for later use during GC. */
|
||
case R_FRV_GNU_VTENTRY:
|
||
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
||
return FALSE;
|
||
break;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
|
||
/* Return the machine subcode from the ELF e_flags header. */
|
||
|
||
static int
|
||
elf32_frv_machine (abfd)
|
||
bfd *abfd;
|
||
{
|
||
switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
|
||
{
|
||
default: break;
|
||
case EF_FRV_CPU_FR500: return bfd_mach_fr500;
|
||
case EF_FRV_CPU_FR400: return bfd_mach_fr400;
|
||
case EF_FRV_CPU_FR300: return bfd_mach_fr300;
|
||
case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
|
||
case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
|
||
}
|
||
|
||
return bfd_mach_frv;
|
||
}
|
||
|
||
/* Set the right machine number for a FRV ELF file. */
|
||
|
||
static bfd_boolean
|
||
elf32_frv_object_p (abfd)
|
||
bfd *abfd;
|
||
{
|
||
bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
|
||
return TRUE;
|
||
}
|
||
|
||
/* Function to set the ELF flag bits. */
|
||
|
||
static bfd_boolean
|
||
frv_elf_set_private_flags (abfd, flags)
|
||
bfd *abfd;
|
||
flagword flags;
|
||
{
|
||
elf_elfheader (abfd)->e_flags = flags;
|
||
elf_flags_init (abfd) = TRUE;
|
||
return TRUE;
|
||
}
|
||
|
||
/* Copy backend specific data from one object module to another. */
|
||
|
||
static bfd_boolean
|
||
frv_elf_copy_private_bfd_data (ibfd, obfd)
|
||
bfd *ibfd;
|
||
bfd *obfd;
|
||
{
|
||
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|
||
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
|
||
return TRUE;
|
||
|
||
BFD_ASSERT (!elf_flags_init (obfd)
|
||
|| elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
|
||
|
||
elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
|
||
elf_flags_init (obfd) = TRUE;
|
||
return TRUE;
|
||
}
|
||
|
||
/* Merge backend specific data from an object file to the output
|
||
object file when linking. */
|
||
|
||
static bfd_boolean
|
||
frv_elf_merge_private_bfd_data (ibfd, obfd)
|
||
bfd *ibfd;
|
||
bfd *obfd;
|
||
{
|
||
flagword old_flags, old_partial;
|
||
flagword new_flags, new_partial;
|
||
bfd_boolean error = FALSE;
|
||
char new_opt[80];
|
||
char old_opt[80];
|
||
|
||
new_opt[0] = old_opt[0] = '\0';
|
||
new_flags = elf_elfheader (ibfd)->e_flags;
|
||
old_flags = elf_elfheader (obfd)->e_flags;
|
||
|
||
#ifdef DEBUG
|
||
(*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
|
||
old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
|
||
bfd_get_filename (ibfd));
|
||
#endif
|
||
|
||
if (!elf_flags_init (obfd)) /* First call, no flags set. */
|
||
{
|
||
elf_flags_init (obfd) = TRUE;
|
||
old_flags = new_flags;
|
||
}
|
||
|
||
else if (new_flags == old_flags) /* Compatible flags are ok. */
|
||
;
|
||
|
||
else /* Possibly incompatible flags. */
|
||
{
|
||
/* Warn if different # of gprs are used. Note, 0 means nothing is
|
||
said about the size of gprs. */
|
||
new_partial = (new_flags & EF_FRV_GPR_MASK);
|
||
old_partial = (old_flags & EF_FRV_GPR_MASK);
|
||
if (new_partial == old_partial)
|
||
;
|
||
|
||
else if (new_partial == 0)
|
||
;
|
||
|
||
else if (old_partial == 0)
|
||
old_flags |= new_partial;
|
||
|
||
else
|
||
{
|
||
switch (new_partial)
|
||
{
|
||
default: strcat (new_opt, " -mgpr-??"); break;
|
||
case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
|
||
case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
|
||
}
|
||
|
||
switch (old_partial)
|
||
{
|
||
default: strcat (old_opt, " -mgpr-??"); break;
|
||
case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
|
||
case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
|
||
}
|
||
}
|
||
|
||
/* Warn if different # of fprs are used. Note, 0 means nothing is
|
||
said about the size of fprs. */
|
||
new_partial = (new_flags & EF_FRV_FPR_MASK);
|
||
old_partial = (old_flags & EF_FRV_FPR_MASK);
|
||
if (new_partial == old_partial)
|
||
;
|
||
|
||
else if (new_partial == 0)
|
||
;
|
||
|
||
else if (old_partial == 0)
|
||
old_flags |= new_partial;
|
||
|
||
else
|
||
{
|
||
switch (new_partial)
|
||
{
|
||
default: strcat (new_opt, " -mfpr-?"); break;
|
||
case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
|
||
case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
|
||
case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
|
||
}
|
||
|
||
switch (old_partial)
|
||
{
|
||
default: strcat (old_opt, " -mfpr-?"); break;
|
||
case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
|
||
case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
|
||
case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
|
||
}
|
||
}
|
||
|
||
/* Warn if different dword support was used. Note, 0 means nothing is
|
||
said about the dword support. */
|
||
new_partial = (new_flags & EF_FRV_DWORD_MASK);
|
||
old_partial = (old_flags & EF_FRV_DWORD_MASK);
|
||
if (new_partial == old_partial)
|
||
;
|
||
|
||
else if (new_partial == 0)
|
||
;
|
||
|
||
else if (old_partial == 0)
|
||
old_flags |= new_partial;
|
||
|
||
else
|
||
{
|
||
switch (new_partial)
|
||
{
|
||
default: strcat (new_opt, " -mdword-?"); break;
|
||
case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
|
||
case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
|
||
}
|
||
|
||
switch (old_partial)
|
||
{
|
||
default: strcat (old_opt, " -mdword-?"); break;
|
||
case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
|
||
case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
|
||
}
|
||
}
|
||
|
||
/* Or in flags that accumulate (ie, if one module uses it, mark that the
|
||
feature is used. */
|
||
old_flags |= new_flags & (EF_FRV_DOUBLE
|
||
| EF_FRV_MEDIA
|
||
| EF_FRV_MULADD
|
||
| EF_FRV_NON_PIC_RELOCS);
|
||
|
||
/* If any module was compiled without -G0, clear the G0 bit. */
|
||
old_flags = ((old_flags & ~ EF_FRV_G0)
|
||
| (old_flags & new_flags & EF_FRV_G0));
|
||
|
||
/* If any module was compiled without -mnopack, clear the mnopack bit. */
|
||
old_flags = ((old_flags & ~ EF_FRV_NOPACK)
|
||
| (old_flags & new_flags & EF_FRV_NOPACK));
|
||
|
||
/* We don't have to do anything if the pic flags are the same, or the new
|
||
module(s) were compiled with -mlibrary-pic. */
|
||
new_partial = (new_flags & EF_FRV_PIC_FLAGS);
|
||
old_partial = (old_flags & EF_FRV_PIC_FLAGS);
|
||
if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
|
||
;
|
||
|
||
/* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
|
||
flags if any from the new module. */
|
||
else if ((old_partial & EF_FRV_LIBPIC) != 0)
|
||
old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
|
||
|
||
/* If we have mixtures of -fpic and -fPIC, or in both bits. */
|
||
else if (new_partial != 0 && old_partial != 0)
|
||
old_flags |= new_partial;
|
||
|
||
/* One module was compiled for pic and the other was not, see if we have
|
||
had any relocations that are not pic-safe. */
|
||
else
|
||
{
|
||
if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
|
||
old_flags |= new_partial;
|
||
else
|
||
{
|
||
old_flags &= ~ EF_FRV_PIC_FLAGS;
|
||
#ifndef FRV_NO_PIC_ERROR
|
||
error = TRUE;
|
||
(*_bfd_error_handler)
|
||
(_("%s: compiled with %s and linked with modules that use non-pic relocations"),
|
||
bfd_get_filename (ibfd),
|
||
(new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
|
||
#endif
|
||
}
|
||
}
|
||
|
||
/* Warn if different cpu is used (allow a specific cpu to override
|
||
the generic cpu). */
|
||
new_partial = (new_flags & EF_FRV_CPU_MASK);
|
||
old_partial = (old_flags & EF_FRV_CPU_MASK);
|
||
if (new_partial == old_partial)
|
||
;
|
||
|
||
else if (new_partial == EF_FRV_CPU_GENERIC)
|
||
;
|
||
|
||
else if (old_partial == EF_FRV_CPU_GENERIC)
|
||
old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
|
||
|
||
else
|
||
{
|
||
switch (new_partial)
|
||
{
|
||
default: strcat (new_opt, " -mcpu=?"); break;
|
||
case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
|
||
case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
|
||
case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
|
||
case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
|
||
case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
|
||
case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
|
||
}
|
||
|
||
switch (old_partial)
|
||
{
|
||
default: strcat (old_opt, " -mcpu=?"); break;
|
||
case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
|
||
case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
|
||
case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
|
||
case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
|
||
case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
|
||
case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
|
||
}
|
||
}
|
||
|
||
/* Print out any mismatches from above. */
|
||
if (new_opt[0])
|
||
{
|
||
error = TRUE;
|
||
(*_bfd_error_handler)
|
||
(_("%s: compiled with %s and linked with modules compiled with %s"),
|
||
bfd_get_filename (ibfd), new_opt, old_opt);
|
||
}
|
||
|
||
/* Warn about any other mismatches */
|
||
new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
|
||
old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
|
||
if (new_partial != old_partial)
|
||
{
|
||
old_flags |= new_partial;
|
||
error = TRUE;
|
||
(*_bfd_error_handler)
|
||
(_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
|
||
bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
|
||
}
|
||
}
|
||
|
||
/* If the cpu is -mcpu=simple, then set the -mnopack bit. */
|
||
if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
|
||
old_flags |= EF_FRV_NOPACK;
|
||
|
||
/* Update the old flags now with changes made above. */
|
||
old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
|
||
elf_elfheader (obfd)->e_flags = old_flags;
|
||
if (old_partial != (old_flags & EF_FRV_CPU_MASK))
|
||
bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
|
||
|
||
if (error)
|
||
bfd_set_error (bfd_error_bad_value);
|
||
|
||
return !error;
|
||
}
|
||
|
||
|
||
bfd_boolean
|
||
frv_elf_print_private_bfd_data (abfd, ptr)
|
||
bfd *abfd;
|
||
PTR ptr;
|
||
{
|
||
FILE *file = (FILE *) ptr;
|
||
flagword flags;
|
||
|
||
BFD_ASSERT (abfd != NULL && ptr != NULL);
|
||
|
||
/* Print normal ELF private data. */
|
||
_bfd_elf_print_private_bfd_data (abfd, ptr);
|
||
|
||
flags = elf_elfheader (abfd)->e_flags;
|
||
fprintf (file, _("private flags = 0x%lx:"), (long)flags);
|
||
|
||
switch (flags & EF_FRV_CPU_MASK)
|
||
{
|
||
default: break;
|
||
case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
|
||
case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
|
||
case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
|
||
case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
|
||
case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
|
||
}
|
||
|
||
switch (flags & EF_FRV_GPR_MASK)
|
||
{
|
||
default: break;
|
||
case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
|
||
case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
|
||
}
|
||
|
||
switch (flags & EF_FRV_FPR_MASK)
|
||
{
|
||
default: break;
|
||
case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
|
||
case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
|
||
case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
|
||
}
|
||
|
||
switch (flags & EF_FRV_DWORD_MASK)
|
||
{
|
||
default: break;
|
||
case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
|
||
case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
|
||
}
|
||
|
||
if (flags & EF_FRV_DOUBLE)
|
||
fprintf (file, " -mdouble");
|
||
|
||
if (flags & EF_FRV_MEDIA)
|
||
fprintf (file, " -mmedia");
|
||
|
||
if (flags & EF_FRV_MULADD)
|
||
fprintf (file, " -mmuladd");
|
||
|
||
if (flags & EF_FRV_PIC)
|
||
fprintf (file, " -fpic");
|
||
|
||
if (flags & EF_FRV_BIGPIC)
|
||
fprintf (file, " -fPIC");
|
||
|
||
if (flags & EF_FRV_NON_PIC_RELOCS)
|
||
fprintf (file, " non-pic relocations");
|
||
|
||
if (flags & EF_FRV_G0)
|
||
fprintf (file, " -G0");
|
||
|
||
fputc ('\n', file);
|
||
return TRUE;
|
||
}
|
||
|
||
|
||
#define ELF_ARCH bfd_arch_frv
|
||
#define ELF_MACHINE_CODE EM_CYGNUS_FRV
|
||
#define ELF_MAXPAGESIZE 0x1000
|
||
|
||
#define TARGET_BIG_SYM bfd_elf32_frv_vec
|
||
#define TARGET_BIG_NAME "elf32-frv"
|
||
|
||
#define elf_info_to_howto_rel NULL
|
||
#define elf_info_to_howto frv_info_to_howto_rela
|
||
#define elf_backend_relocate_section elf32_frv_relocate_section
|
||
#define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
|
||
#define elf_backend_gc_sweep_hook elf32_frv_gc_sweep_hook
|
||
#define elf_backend_check_relocs elf32_frv_check_relocs
|
||
#define elf_backend_object_p elf32_frv_object_p
|
||
#define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
|
||
|
||
#define elf_backend_can_gc_sections 1
|
||
#define elf_backend_rela_normal 1
|
||
|
||
#define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
|
||
#define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
|
||
#define bfd_elf32_bfd_copy_private_bfd_data frv_elf_copy_private_bfd_data
|
||
#define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
|
||
#define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
|
||
|
||
#include "elf32-target.h"
|