/* Motorola 68k series support for 32-bit ELF
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/* Motorola 68k series support for 32-bit ELF
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Copyright 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
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Copyright 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
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2004, 2005, 2006, 2007 Free Software Foundation, Inc.
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2004, 2005, 2006, 2007 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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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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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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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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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfd.h"
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#include "bfdlink.h"
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#include "bfdlink.h"
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#include "libbfd.h"
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#include "libbfd.h"
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#include "elf-bfd.h"
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#include "elf-bfd.h"
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#include "elf/m68k.h"
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#include "elf/m68k.h"
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#include "opcode/m68k.h"
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#include "opcode/m68k.h"
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static reloc_howto_type *reloc_type_lookup
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static reloc_howto_type *reloc_type_lookup
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PARAMS ((bfd *, bfd_reloc_code_real_type));
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PARAMS ((bfd *, bfd_reloc_code_real_type));
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static void rtype_to_howto
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static void rtype_to_howto
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PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
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PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
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static struct bfd_hash_entry *elf_m68k_link_hash_newfunc
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static struct bfd_hash_entry *elf_m68k_link_hash_newfunc
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PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
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PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
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static struct bfd_link_hash_table *elf_m68k_link_hash_table_create
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static struct bfd_link_hash_table *elf_m68k_link_hash_table_create
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PARAMS ((bfd *));
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PARAMS ((bfd *));
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static bfd_boolean elf_m68k_check_relocs
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static bfd_boolean elf_m68k_check_relocs
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PARAMS ((bfd *, struct bfd_link_info *, asection *,
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PARAMS ((bfd *, struct bfd_link_info *, asection *,
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const Elf_Internal_Rela *));
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const Elf_Internal_Rela *));
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static bfd_boolean elf_m68k_adjust_dynamic_symbol
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static bfd_boolean elf_m68k_adjust_dynamic_symbol
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PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
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PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
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static bfd_boolean elf_m68k_size_dynamic_sections
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static bfd_boolean elf_m68k_size_dynamic_sections
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PARAMS ((bfd *, struct bfd_link_info *));
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PARAMS ((bfd *, struct bfd_link_info *));
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static bfd_boolean elf_m68k_discard_copies
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static bfd_boolean elf_m68k_discard_copies
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PARAMS ((struct elf_link_hash_entry *, PTR));
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PARAMS ((struct elf_link_hash_entry *, PTR));
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static bfd_boolean elf_m68k_relocate_section
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static bfd_boolean elf_m68k_relocate_section
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PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
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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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Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
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static bfd_boolean elf_m68k_finish_dynamic_symbol
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static bfd_boolean elf_m68k_finish_dynamic_symbol
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PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
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PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
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Elf_Internal_Sym *));
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Elf_Internal_Sym *));
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static bfd_boolean elf_m68k_finish_dynamic_sections
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static bfd_boolean elf_m68k_finish_dynamic_sections
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PARAMS ((bfd *, struct bfd_link_info *));
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PARAMS ((bfd *, struct bfd_link_info *));
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static bfd_boolean elf32_m68k_set_private_flags
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static bfd_boolean elf32_m68k_set_private_flags
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PARAMS ((bfd *, flagword));
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PARAMS ((bfd *, flagword));
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static bfd_boolean elf32_m68k_merge_private_bfd_data
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static bfd_boolean elf32_m68k_merge_private_bfd_data
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PARAMS ((bfd *, bfd *));
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PARAMS ((bfd *, bfd *));
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static bfd_boolean elf32_m68k_print_private_bfd_data
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static bfd_boolean elf32_m68k_print_private_bfd_data
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PARAMS ((bfd *, PTR));
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PARAMS ((bfd *, PTR));
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static enum elf_reloc_type_class elf32_m68k_reloc_type_class
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static enum elf_reloc_type_class elf32_m68k_reloc_type_class
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PARAMS ((const Elf_Internal_Rela *));
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PARAMS ((const Elf_Internal_Rela *));
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static reloc_howto_type howto_table[] = {
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static reloc_howto_type howto_table[] = {
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HOWTO(R_68K_NONE, 0, 0, 0, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_NONE", FALSE, 0, 0x00000000,FALSE),
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HOWTO(R_68K_NONE, 0, 0, 0, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_NONE", FALSE, 0, 0x00000000,FALSE),
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HOWTO(R_68K_32, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_32", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_32, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_32", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_16, 0, 1,16, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_16", FALSE, 0, 0x0000ffff,FALSE),
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HOWTO(R_68K_16, 0, 1,16, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_16", FALSE, 0, 0x0000ffff,FALSE),
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HOWTO(R_68K_8, 0, 0, 8, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_8", FALSE, 0, 0x000000ff,FALSE),
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HOWTO(R_68K_8, 0, 0, 8, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_8", FALSE, 0, 0x000000ff,FALSE),
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HOWTO(R_68K_PC32, 0, 2,32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_PC32", FALSE, 0, 0xffffffff,TRUE),
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HOWTO(R_68K_PC32, 0, 2,32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_PC32", FALSE, 0, 0xffffffff,TRUE),
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HOWTO(R_68K_PC16, 0, 1,16, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PC16", FALSE, 0, 0x0000ffff,TRUE),
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HOWTO(R_68K_PC16, 0, 1,16, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PC16", FALSE, 0, 0x0000ffff,TRUE),
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HOWTO(R_68K_PC8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PC8", FALSE, 0, 0x000000ff,TRUE),
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HOWTO(R_68K_PC8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PC8", FALSE, 0, 0x000000ff,TRUE),
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HOWTO(R_68K_GOT32, 0, 2,32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_GOT32", FALSE, 0, 0xffffffff,TRUE),
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HOWTO(R_68K_GOT32, 0, 2,32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_GOT32", FALSE, 0, 0xffffffff,TRUE),
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HOWTO(R_68K_GOT16, 0, 1,16, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT16", FALSE, 0, 0x0000ffff,TRUE),
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HOWTO(R_68K_GOT16, 0, 1,16, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT16", FALSE, 0, 0x0000ffff,TRUE),
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HOWTO(R_68K_GOT8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT8", FALSE, 0, 0x000000ff,TRUE),
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HOWTO(R_68K_GOT8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT8", FALSE, 0, 0x000000ff,TRUE),
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HOWTO(R_68K_GOT32O, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_GOT32O", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_GOT32O, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_GOT32O", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_GOT16O, 0, 1,16, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT16O", FALSE, 0, 0x0000ffff,FALSE),
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HOWTO(R_68K_GOT16O, 0, 1,16, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT16O", FALSE, 0, 0x0000ffff,FALSE),
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HOWTO(R_68K_GOT8O, 0, 0, 8, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT8O", FALSE, 0, 0x000000ff,FALSE),
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HOWTO(R_68K_GOT8O, 0, 0, 8, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_GOT8O", FALSE, 0, 0x000000ff,FALSE),
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HOWTO(R_68K_PLT32, 0, 2,32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_PLT32", FALSE, 0, 0xffffffff,TRUE),
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HOWTO(R_68K_PLT32, 0, 2,32, TRUE, 0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_PLT32", FALSE, 0, 0xffffffff,TRUE),
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HOWTO(R_68K_PLT16, 0, 1,16, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT16", FALSE, 0, 0x0000ffff,TRUE),
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HOWTO(R_68K_PLT16, 0, 1,16, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT16", FALSE, 0, 0x0000ffff,TRUE),
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HOWTO(R_68K_PLT8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT8", FALSE, 0, 0x000000ff,TRUE),
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HOWTO(R_68K_PLT8, 0, 0, 8, TRUE, 0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT8", FALSE, 0, 0x000000ff,TRUE),
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HOWTO(R_68K_PLT32O, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_PLT32O", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_PLT32O, 0, 2,32, FALSE,0, complain_overflow_bitfield, bfd_elf_generic_reloc, "R_68K_PLT32O", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_PLT16O, 0, 1,16, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT16O", FALSE, 0, 0x0000ffff,FALSE),
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HOWTO(R_68K_PLT16O, 0, 1,16, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT16O", FALSE, 0, 0x0000ffff,FALSE),
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HOWTO(R_68K_PLT8O, 0, 0, 8, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT8O", FALSE, 0, 0x000000ff,FALSE),
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HOWTO(R_68K_PLT8O, 0, 0, 8, FALSE,0, complain_overflow_signed, bfd_elf_generic_reloc, "R_68K_PLT8O", FALSE, 0, 0x000000ff,FALSE),
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HOWTO(R_68K_COPY, 0, 0, 0, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_COPY", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_COPY, 0, 0, 0, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_COPY", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_GLOB_DAT, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_GLOB_DAT", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_GLOB_DAT, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_GLOB_DAT", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_JMP_SLOT, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_JMP_SLOT", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_JMP_SLOT, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_JMP_SLOT", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_RELATIVE, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_RELATIVE", FALSE, 0, 0xffffffff,FALSE),
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HOWTO(R_68K_RELATIVE, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_RELATIVE", FALSE, 0, 0xffffffff,FALSE),
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/* GNU extension to record C++ vtable hierarchy. */
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/* GNU extension to record C++ vtable hierarchy. */
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HOWTO (R_68K_GNU_VTINHERIT, /* type */
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HOWTO (R_68K_GNU_VTINHERIT, /* type */
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0, /* rightshift */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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0, /* bitsize */
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FALSE, /* pc_relative */
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FALSE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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complain_overflow_dont, /* complain_on_overflow */
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NULL, /* special_function */
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NULL, /* special_function */
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"R_68K_GNU_VTINHERIT", /* name */
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"R_68K_GNU_VTINHERIT", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* src_mask */
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0, /* dst_mask */
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0, /* dst_mask */
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FALSE),
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FALSE),
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/* GNU extension to record C++ vtable member usage. */
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/* GNU extension to record C++ vtable member usage. */
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HOWTO (R_68K_GNU_VTENTRY, /* type */
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HOWTO (R_68K_GNU_VTENTRY, /* type */
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0, /* rightshift */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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0, /* bitsize */
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FALSE, /* pc_relative */
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FALSE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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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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_bfd_elf_rel_vtable_reloc_fn, /* special_function */
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"R_68K_GNU_VTENTRY", /* name */
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"R_68K_GNU_VTENTRY", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0, /* src_mask */
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0, /* src_mask */
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0, /* dst_mask */
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0, /* dst_mask */
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FALSE),
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FALSE),
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};
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};
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static void
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static void
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rtype_to_howto (abfd, cache_ptr, dst)
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rtype_to_howto (abfd, cache_ptr, dst)
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bfd *abfd ATTRIBUTE_UNUSED;
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bfd *abfd ATTRIBUTE_UNUSED;
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arelent *cache_ptr;
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arelent *cache_ptr;
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Elf_Internal_Rela *dst;
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Elf_Internal_Rela *dst;
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{
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{
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BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_68K_max);
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BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_68K_max);
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cache_ptr->howto = &howto_table[ELF32_R_TYPE(dst->r_info)];
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cache_ptr->howto = &howto_table[ELF32_R_TYPE(dst->r_info)];
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}
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}
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#define elf_info_to_howto rtype_to_howto
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#define elf_info_to_howto rtype_to_howto
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static const struct
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static const struct
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{
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{
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bfd_reloc_code_real_type bfd_val;
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bfd_reloc_code_real_type bfd_val;
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int elf_val;
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int elf_val;
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} reloc_map[] = {
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} reloc_map[] = {
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{ BFD_RELOC_NONE, R_68K_NONE },
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{ BFD_RELOC_NONE, R_68K_NONE },
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{ BFD_RELOC_32, R_68K_32 },
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{ BFD_RELOC_32, R_68K_32 },
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{ BFD_RELOC_16, R_68K_16 },
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{ BFD_RELOC_16, R_68K_16 },
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{ BFD_RELOC_8, R_68K_8 },
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{ BFD_RELOC_8, R_68K_8 },
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{ BFD_RELOC_32_PCREL, R_68K_PC32 },
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{ BFD_RELOC_32_PCREL, R_68K_PC32 },
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{ BFD_RELOC_16_PCREL, R_68K_PC16 },
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{ BFD_RELOC_16_PCREL, R_68K_PC16 },
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{ BFD_RELOC_8_PCREL, R_68K_PC8 },
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{ BFD_RELOC_8_PCREL, R_68K_PC8 },
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{ BFD_RELOC_32_GOT_PCREL, R_68K_GOT32 },
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{ BFD_RELOC_32_GOT_PCREL, R_68K_GOT32 },
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{ BFD_RELOC_16_GOT_PCREL, R_68K_GOT16 },
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{ BFD_RELOC_16_GOT_PCREL, R_68K_GOT16 },
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{ BFD_RELOC_8_GOT_PCREL, R_68K_GOT8 },
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{ BFD_RELOC_8_GOT_PCREL, R_68K_GOT8 },
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{ BFD_RELOC_32_GOTOFF, R_68K_GOT32O },
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{ BFD_RELOC_32_GOTOFF, R_68K_GOT32O },
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{ BFD_RELOC_16_GOTOFF, R_68K_GOT16O },
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{ BFD_RELOC_16_GOTOFF, R_68K_GOT16O },
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{ BFD_RELOC_8_GOTOFF, R_68K_GOT8O },
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{ BFD_RELOC_8_GOTOFF, R_68K_GOT8O },
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{ BFD_RELOC_32_PLT_PCREL, R_68K_PLT32 },
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{ BFD_RELOC_32_PLT_PCREL, R_68K_PLT32 },
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{ BFD_RELOC_16_PLT_PCREL, R_68K_PLT16 },
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{ BFD_RELOC_16_PLT_PCREL, R_68K_PLT16 },
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{ BFD_RELOC_8_PLT_PCREL, R_68K_PLT8 },
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{ BFD_RELOC_8_PLT_PCREL, R_68K_PLT8 },
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{ BFD_RELOC_32_PLTOFF, R_68K_PLT32O },
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{ BFD_RELOC_32_PLTOFF, R_68K_PLT32O },
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{ BFD_RELOC_16_PLTOFF, R_68K_PLT16O },
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{ BFD_RELOC_16_PLTOFF, R_68K_PLT16O },
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{ BFD_RELOC_8_PLTOFF, R_68K_PLT8O },
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{ BFD_RELOC_8_PLTOFF, R_68K_PLT8O },
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{ BFD_RELOC_NONE, R_68K_COPY },
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{ BFD_RELOC_NONE, R_68K_COPY },
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{ BFD_RELOC_68K_GLOB_DAT, R_68K_GLOB_DAT },
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{ BFD_RELOC_68K_GLOB_DAT, R_68K_GLOB_DAT },
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{ BFD_RELOC_68K_JMP_SLOT, R_68K_JMP_SLOT },
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{ BFD_RELOC_68K_JMP_SLOT, R_68K_JMP_SLOT },
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{ BFD_RELOC_68K_RELATIVE, R_68K_RELATIVE },
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{ BFD_RELOC_68K_RELATIVE, R_68K_RELATIVE },
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{ BFD_RELOC_CTOR, R_68K_32 },
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{ BFD_RELOC_CTOR, R_68K_32 },
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{ BFD_RELOC_VTABLE_INHERIT, R_68K_GNU_VTINHERIT },
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{ BFD_RELOC_VTABLE_INHERIT, R_68K_GNU_VTINHERIT },
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{ BFD_RELOC_VTABLE_ENTRY, R_68K_GNU_VTENTRY },
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{ BFD_RELOC_VTABLE_ENTRY, R_68K_GNU_VTENTRY },
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};
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};
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static reloc_howto_type *
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static reloc_howto_type *
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reloc_type_lookup (abfd, code)
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reloc_type_lookup (abfd, code)
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bfd *abfd ATTRIBUTE_UNUSED;
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bfd *abfd ATTRIBUTE_UNUSED;
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bfd_reloc_code_real_type code;
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bfd_reloc_code_real_type code;
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{
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{
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unsigned int i;
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unsigned int i;
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for (i = 0; i < sizeof (reloc_map) / sizeof (reloc_map[0]); i++)
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for (i = 0; i < sizeof (reloc_map) / sizeof (reloc_map[0]); i++)
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{
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{
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if (reloc_map[i].bfd_val == code)
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if (reloc_map[i].bfd_val == code)
|
return &howto_table[reloc_map[i].elf_val];
|
return &howto_table[reloc_map[i].elf_val];
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
|
reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
|
|
for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++)
|
for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++)
|
if (howto_table[i].name != NULL
|
if (howto_table[i].name != NULL
|
&& strcasecmp (howto_table[i].name, r_name) == 0)
|
&& strcasecmp (howto_table[i].name, r_name) == 0)
|
return &howto_table[i];
|
return &howto_table[i];
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
#define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup
|
#define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup
|
#define bfd_elf32_bfd_reloc_name_lookup reloc_name_lookup
|
#define bfd_elf32_bfd_reloc_name_lookup reloc_name_lookup
|
#define ELF_ARCH bfd_arch_m68k
|
#define ELF_ARCH bfd_arch_m68k
|
|
|
/* Functions for the m68k ELF linker. */
|
/* Functions for the m68k ELF linker. */
|
|
|
/* The name of the dynamic interpreter. This is put in the .interp
|
/* The name of the dynamic interpreter. This is put in the .interp
|
section. */
|
section. */
|
|
|
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
|
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
|
|
|
/* Describes one of the various PLT styles. */
|
/* Describes one of the various PLT styles. */
|
|
|
struct elf_m68k_plt_info
|
struct elf_m68k_plt_info
|
{
|
{
|
/* The size of each PLT entry. */
|
/* The size of each PLT entry. */
|
bfd_vma size;
|
bfd_vma size;
|
|
|
/* The template for the first PLT entry. */
|
/* The template for the first PLT entry. */
|
const bfd_byte *plt0_entry;
|
const bfd_byte *plt0_entry;
|
|
|
/* Offsets of fields in PLT0_ENTRY that require R_68K_PC32 relocations.
|
/* Offsets of fields in PLT0_ENTRY that require R_68K_PC32 relocations.
|
The comments by each member indicate the value that the relocation
|
The comments by each member indicate the value that the relocation
|
is against. */
|
is against. */
|
struct {
|
struct {
|
unsigned int got4; /* .got + 4 */
|
unsigned int got4; /* .got + 4 */
|
unsigned int got8; /* .got + 8 */
|
unsigned int got8; /* .got + 8 */
|
} plt0_relocs;
|
} plt0_relocs;
|
|
|
/* The template for a symbol's PLT entry. */
|
/* The template for a symbol's PLT entry. */
|
const bfd_byte *symbol_entry;
|
const bfd_byte *symbol_entry;
|
|
|
/* Offsets of fields in SYMBOL_ENTRY that require R_68K_PC32 relocations.
|
/* Offsets of fields in SYMBOL_ENTRY that require R_68K_PC32 relocations.
|
The comments by each member indicate the value that the relocation
|
The comments by each member indicate the value that the relocation
|
is against. */
|
is against. */
|
struct {
|
struct {
|
unsigned int got; /* the symbol's .got.plt entry */
|
unsigned int got; /* the symbol's .got.plt entry */
|
unsigned int plt; /* .plt */
|
unsigned int plt; /* .plt */
|
} symbol_relocs;
|
} symbol_relocs;
|
|
|
/* The offset of the resolver stub from the start of SYMBOL_ENTRY.
|
/* The offset of the resolver stub from the start of SYMBOL_ENTRY.
|
The stub starts with "move.l #relocoffset,%d0". */
|
The stub starts with "move.l #relocoffset,%d0". */
|
bfd_vma symbol_resolve_entry;
|
bfd_vma symbol_resolve_entry;
|
};
|
};
|
|
|
/* The size in bytes of an entry in the procedure linkage table. */
|
/* The size in bytes of an entry in the procedure linkage table. */
|
|
|
#define PLT_ENTRY_SIZE 20
|
#define PLT_ENTRY_SIZE 20
|
|
|
/* The first entry in a procedure linkage table looks like this. See
|
/* The first entry in a procedure linkage table looks like this. See
|
the SVR4 ABI m68k supplement to see how this works. */
|
the SVR4 ABI m68k supplement to see how this works. */
|
|
|
static const bfd_byte elf_m68k_plt0_entry[PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_m68k_plt0_entry[PLT_ENTRY_SIZE] =
|
{
|
{
|
0x2f, 0x3b, 0x01, 0x70, /* move.l (%pc,addr),-(%sp) */
|
0x2f, 0x3b, 0x01, 0x70, /* move.l (%pc,addr),-(%sp) */
|
0, 0, 0, 2, /* + (.got + 4) - . */
|
0, 0, 0, 2, /* + (.got + 4) - . */
|
0x4e, 0xfb, 0x01, 0x71, /* jmp ([%pc,addr]) */
|
0x4e, 0xfb, 0x01, 0x71, /* jmp ([%pc,addr]) */
|
0, 0, 0, 2, /* + (.got + 8) - . */
|
0, 0, 0, 2, /* + (.got + 8) - . */
|
0, 0, 0, 0 /* pad out to 20 bytes. */
|
0, 0, 0, 0 /* pad out to 20 bytes. */
|
};
|
};
|
|
|
/* Subsequent entries in a procedure linkage table look like this. */
|
/* Subsequent entries in a procedure linkage table look like this. */
|
|
|
static const bfd_byte elf_m68k_plt_entry[PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_m68k_plt_entry[PLT_ENTRY_SIZE] =
|
{
|
{
|
0x4e, 0xfb, 0x01, 0x71, /* jmp ([%pc,symbol@GOTPC]) */
|
0x4e, 0xfb, 0x01, 0x71, /* jmp ([%pc,symbol@GOTPC]) */
|
0, 0, 0, 2, /* + (.got.plt entry) - . */
|
0, 0, 0, 2, /* + (.got.plt entry) - . */
|
0x2f, 0x3c, /* move.l #offset,-(%sp) */
|
0x2f, 0x3c, /* move.l #offset,-(%sp) */
|
0, 0, 0, 0, /* + reloc index */
|
0, 0, 0, 0, /* + reloc index */
|
0x60, 0xff, /* bra.l .plt */
|
0x60, 0xff, /* bra.l .plt */
|
0, 0, 0, 0 /* + .plt - . */
|
0, 0, 0, 0 /* + .plt - . */
|
};
|
};
|
|
|
static const struct elf_m68k_plt_info elf_m68k_plt_info = {
|
static const struct elf_m68k_plt_info elf_m68k_plt_info = {
|
PLT_ENTRY_SIZE,
|
PLT_ENTRY_SIZE,
|
elf_m68k_plt0_entry, { 4, 12 },
|
elf_m68k_plt0_entry, { 4, 12 },
|
elf_m68k_plt_entry, { 4, 16 }, 8
|
elf_m68k_plt_entry, { 4, 16 }, 8
|
};
|
};
|
|
|
#define ISAB_PLT_ENTRY_SIZE 24
|
#define ISAB_PLT_ENTRY_SIZE 24
|
|
|
static const bfd_byte elf_isab_plt0_entry[ISAB_PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_isab_plt0_entry[ISAB_PLT_ENTRY_SIZE] =
|
{
|
{
|
0x20, 0x3c, /* move.l #offset,%d0 */
|
0x20, 0x3c, /* move.l #offset,%d0 */
|
0, 0, 0, 0, /* + (.got + 4) - . */
|
0, 0, 0, 0, /* + (.got + 4) - . */
|
0x2f, 0x3b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l),-(%sp) */
|
0x2f, 0x3b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l),-(%sp) */
|
0x20, 0x3c, /* move.l #offset,%d0 */
|
0x20, 0x3c, /* move.l #offset,%d0 */
|
0, 0, 0, 0, /* + (.got + 8) - . */
|
0, 0, 0, 0, /* + (.got + 8) - . */
|
0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
|
0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
|
0x4e, 0xd0, /* jmp (%a0) */
|
0x4e, 0xd0, /* jmp (%a0) */
|
0x4e, 0x71 /* nop */
|
0x4e, 0x71 /* nop */
|
};
|
};
|
|
|
/* Subsequent entries in a procedure linkage table look like this. */
|
/* Subsequent entries in a procedure linkage table look like this. */
|
|
|
static const bfd_byte elf_isab_plt_entry[ISAB_PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_isab_plt_entry[ISAB_PLT_ENTRY_SIZE] =
|
{
|
{
|
0x20, 0x3c, /* move.l #offset,%d0 */
|
0x20, 0x3c, /* move.l #offset,%d0 */
|
0, 0, 0, 0, /* + (.got.plt entry) - . */
|
0, 0, 0, 0, /* + (.got.plt entry) - . */
|
0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
|
0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
|
0x4e, 0xd0, /* jmp (%a0) */
|
0x4e, 0xd0, /* jmp (%a0) */
|
0x2f, 0x3c, /* move.l #offset,-(%sp) */
|
0x2f, 0x3c, /* move.l #offset,-(%sp) */
|
0, 0, 0, 0, /* + reloc index */
|
0, 0, 0, 0, /* + reloc index */
|
0x60, 0xff, /* bra.l .plt */
|
0x60, 0xff, /* bra.l .plt */
|
0, 0, 0, 0 /* + .plt - . */
|
0, 0, 0, 0 /* + .plt - . */
|
};
|
};
|
|
|
static const struct elf_m68k_plt_info elf_isab_plt_info = {
|
static const struct elf_m68k_plt_info elf_isab_plt_info = {
|
ISAB_PLT_ENTRY_SIZE,
|
ISAB_PLT_ENTRY_SIZE,
|
elf_isab_plt0_entry, { 2, 12 },
|
elf_isab_plt0_entry, { 2, 12 },
|
elf_isab_plt_entry, { 2, 20 }, 12
|
elf_isab_plt_entry, { 2, 20 }, 12
|
};
|
};
|
|
|
#define ISAC_PLT_ENTRY_SIZE 24
|
#define ISAC_PLT_ENTRY_SIZE 24
|
|
|
static const bfd_byte elf_isac_plt0_entry[ISAC_PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_isac_plt0_entry[ISAC_PLT_ENTRY_SIZE] =
|
{
|
{
|
0x20, 0x3c, /* move.l #offset,%d0 */
|
0x20, 0x3c, /* move.l #offset,%d0 */
|
0, 0, 0, 0, /* replaced with .got + 4 - . */
|
0, 0, 0, 0, /* replaced with .got + 4 - . */
|
0x2e, 0xbb, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l),(%sp) */
|
0x2e, 0xbb, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l),(%sp) */
|
0x20, 0x3c, /* move.l #offset,%d0 */
|
0x20, 0x3c, /* move.l #offset,%d0 */
|
0, 0, 0, 0, /* replaced with .got + 8 - . */
|
0, 0, 0, 0, /* replaced with .got + 8 - . */
|
0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
|
0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
|
0x4e, 0xd0, /* jmp (%a0) */
|
0x4e, 0xd0, /* jmp (%a0) */
|
0x4e, 0x71 /* nop */
|
0x4e, 0x71 /* nop */
|
};
|
};
|
|
|
/* Subsequent entries in a procedure linkage table look like this. */
|
/* Subsequent entries in a procedure linkage table look like this. */
|
|
|
static const bfd_byte elf_isac_plt_entry[ISAC_PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_isac_plt_entry[ISAC_PLT_ENTRY_SIZE] =
|
{
|
{
|
0x20, 0x3c, /* move.l #offset,%d0 */
|
0x20, 0x3c, /* move.l #offset,%d0 */
|
0, 0, 0, 0, /* replaced with (.got entry) - . */
|
0, 0, 0, 0, /* replaced with (.got entry) - . */
|
0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
|
0x20, 0x7b, 0x08, 0xfa, /* move.l (-6,%pc,%d0:l), %a0 */
|
0x4e, 0xd0, /* jmp (%a0) */
|
0x4e, 0xd0, /* jmp (%a0) */
|
0x2f, 0x3c, /* move.l #offset,-(%sp) */
|
0x2f, 0x3c, /* move.l #offset,-(%sp) */
|
0, 0, 0, 0, /* replaced with offset into relocation table */
|
0, 0, 0, 0, /* replaced with offset into relocation table */
|
0x61, 0xff, /* bsr.l .plt */
|
0x61, 0xff, /* bsr.l .plt */
|
0, 0, 0, 0 /* replaced with .plt - . */
|
0, 0, 0, 0 /* replaced with .plt - . */
|
};
|
};
|
|
|
static const struct elf_m68k_plt_info elf_isac_plt_info = {
|
static const struct elf_m68k_plt_info elf_isac_plt_info = {
|
ISAC_PLT_ENTRY_SIZE,
|
ISAC_PLT_ENTRY_SIZE,
|
elf_isac_plt0_entry, { 2, 12},
|
elf_isac_plt0_entry, { 2, 12},
|
elf_isac_plt_entry, { 2, 20 }, 12
|
elf_isac_plt_entry, { 2, 20 }, 12
|
};
|
};
|
|
|
#define CPU32_PLT_ENTRY_SIZE 24
|
#define CPU32_PLT_ENTRY_SIZE 24
|
/* Procedure linkage table entries for the cpu32 */
|
/* Procedure linkage table entries for the cpu32 */
|
static const bfd_byte elf_cpu32_plt0_entry[CPU32_PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_cpu32_plt0_entry[CPU32_PLT_ENTRY_SIZE] =
|
{
|
{
|
0x2f, 0x3b, 0x01, 0x70, /* move.l (%pc,addr),-(%sp) */
|
0x2f, 0x3b, 0x01, 0x70, /* move.l (%pc,addr),-(%sp) */
|
0, 0, 0, 2, /* + (.got + 4) - . */
|
0, 0, 0, 2, /* + (.got + 4) - . */
|
0x22, 0x7b, 0x01, 0x70, /* moveal %pc@(0xc), %a1 */
|
0x22, 0x7b, 0x01, 0x70, /* moveal %pc@(0xc), %a1 */
|
0, 0, 0, 2, /* + (.got + 8) - . */
|
0, 0, 0, 2, /* + (.got + 8) - . */
|
0x4e, 0xd1, /* jmp %a1@ */
|
0x4e, 0xd1, /* jmp %a1@ */
|
0, 0, 0, 0, /* pad out to 24 bytes. */
|
0, 0, 0, 0, /* pad out to 24 bytes. */
|
0, 0
|
0, 0
|
};
|
};
|
|
|
static const bfd_byte elf_cpu32_plt_entry[CPU32_PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_cpu32_plt_entry[CPU32_PLT_ENTRY_SIZE] =
|
{
|
{
|
0x22, 0x7b, 0x01, 0x70, /* moveal %pc@(0xc), %a1 */
|
0x22, 0x7b, 0x01, 0x70, /* moveal %pc@(0xc), %a1 */
|
0, 0, 0, 2, /* + (.got.plt entry) - . */
|
0, 0, 0, 2, /* + (.got.plt entry) - . */
|
0x4e, 0xd1, /* jmp %a1@ */
|
0x4e, 0xd1, /* jmp %a1@ */
|
0x2f, 0x3c, /* move.l #offset,-(%sp) */
|
0x2f, 0x3c, /* move.l #offset,-(%sp) */
|
0, 0, 0, 0, /* + reloc index */
|
0, 0, 0, 0, /* + reloc index */
|
0x60, 0xff, /* bra.l .plt */
|
0x60, 0xff, /* bra.l .plt */
|
0, 0, 0, 0, /* + .plt - . */
|
0, 0, 0, 0, /* + .plt - . */
|
0, 0
|
0, 0
|
};
|
};
|
|
|
static const struct elf_m68k_plt_info elf_cpu32_plt_info = {
|
static const struct elf_m68k_plt_info elf_cpu32_plt_info = {
|
CPU32_PLT_ENTRY_SIZE,
|
CPU32_PLT_ENTRY_SIZE,
|
elf_cpu32_plt0_entry, { 4, 12 },
|
elf_cpu32_plt0_entry, { 4, 12 },
|
elf_cpu32_plt_entry, { 4, 18 }, 10
|
elf_cpu32_plt_entry, { 4, 18 }, 10
|
};
|
};
|
|
|
/* The m68k linker needs to keep track of the number of relocs that it
|
/* The m68k linker needs to keep track of the number of relocs that it
|
decides to copy in check_relocs for each symbol. This is so that it
|
decides to copy in check_relocs for each symbol. This is so that it
|
can discard PC relative relocs if it doesn't need them when linking
|
can discard PC relative relocs if it doesn't need them when linking
|
with -Bsymbolic. We store the information in a field extending the
|
with -Bsymbolic. We store the information in a field extending the
|
regular ELF linker hash table. */
|
regular ELF linker hash table. */
|
|
|
/* This structure keeps track of the number of PC relative relocs we have
|
/* This structure keeps track of the number of PC relative relocs we have
|
copied for a given symbol. */
|
copied for a given symbol. */
|
|
|
struct elf_m68k_pcrel_relocs_copied
|
struct elf_m68k_pcrel_relocs_copied
|
{
|
{
|
/* Next section. */
|
/* Next section. */
|
struct elf_m68k_pcrel_relocs_copied *next;
|
struct elf_m68k_pcrel_relocs_copied *next;
|
/* A section in dynobj. */
|
/* A section in dynobj. */
|
asection *section;
|
asection *section;
|
/* Number of relocs copied in this section. */
|
/* Number of relocs copied in this section. */
|
bfd_size_type count;
|
bfd_size_type count;
|
};
|
};
|
|
|
/* m68k ELF linker hash entry. */
|
/* m68k ELF linker hash entry. */
|
|
|
struct elf_m68k_link_hash_entry
|
struct elf_m68k_link_hash_entry
|
{
|
{
|
struct elf_link_hash_entry root;
|
struct elf_link_hash_entry root;
|
|
|
/* Number of PC relative relocs copied for this symbol. */
|
/* Number of PC relative relocs copied for this symbol. */
|
struct elf_m68k_pcrel_relocs_copied *pcrel_relocs_copied;
|
struct elf_m68k_pcrel_relocs_copied *pcrel_relocs_copied;
|
};
|
};
|
|
|
#define elf_m68k_hash_entry(ent) ((struct elf_m68k_link_hash_entry *) (ent))
|
#define elf_m68k_hash_entry(ent) ((struct elf_m68k_link_hash_entry *) (ent))
|
|
|
/* m68k ELF linker hash table. */
|
/* m68k ELF linker hash table. */
|
|
|
struct elf_m68k_link_hash_table
|
struct elf_m68k_link_hash_table
|
{
|
{
|
struct elf_link_hash_table root;
|
struct elf_link_hash_table root;
|
|
|
/* Small local sym to section mapping cache. */
|
/* Small local sym to section mapping cache. */
|
struct sym_sec_cache sym_sec;
|
struct sym_sec_cache sym_sec;
|
|
|
/* The PLT format used by this link, or NULL if the format has not
|
/* The PLT format used by this link, or NULL if the format has not
|
yet been chosen. */
|
yet been chosen. */
|
const struct elf_m68k_plt_info *plt_info;
|
const struct elf_m68k_plt_info *plt_info;
|
};
|
};
|
|
|
/* Get the m68k ELF linker hash table from a link_info structure. */
|
/* Get the m68k ELF linker hash table from a link_info structure. */
|
|
|
#define elf_m68k_hash_table(p) \
|
#define elf_m68k_hash_table(p) \
|
((struct elf_m68k_link_hash_table *) (p)->hash)
|
((struct elf_m68k_link_hash_table *) (p)->hash)
|
|
|
/* Create an entry in an m68k ELF linker hash table. */
|
/* Create an entry in an m68k ELF linker hash table. */
|
|
|
static struct bfd_hash_entry *
|
static struct bfd_hash_entry *
|
elf_m68k_link_hash_newfunc (entry, table, string)
|
elf_m68k_link_hash_newfunc (entry, table, string)
|
struct bfd_hash_entry *entry;
|
struct bfd_hash_entry *entry;
|
struct bfd_hash_table *table;
|
struct bfd_hash_table *table;
|
const char *string;
|
const char *string;
|
{
|
{
|
struct bfd_hash_entry *ret = entry;
|
struct bfd_hash_entry *ret = entry;
|
|
|
/* Allocate the structure if it has not already been allocated by a
|
/* Allocate the structure if it has not already been allocated by a
|
subclass. */
|
subclass. */
|
if (ret == NULL)
|
if (ret == NULL)
|
ret = bfd_hash_allocate (table,
|
ret = bfd_hash_allocate (table,
|
sizeof (struct elf_m68k_link_hash_entry));
|
sizeof (struct elf_m68k_link_hash_entry));
|
if (ret == NULL)
|
if (ret == NULL)
|
return ret;
|
return ret;
|
|
|
/* Call the allocation method of the superclass. */
|
/* Call the allocation method of the superclass. */
|
ret = _bfd_elf_link_hash_newfunc (ret, table, string);
|
ret = _bfd_elf_link_hash_newfunc (ret, table, string);
|
if (ret != NULL)
|
if (ret != NULL)
|
elf_m68k_hash_entry (ret)->pcrel_relocs_copied = NULL;
|
elf_m68k_hash_entry (ret)->pcrel_relocs_copied = NULL;
|
|
|
return ret;
|
return ret;
|
}
|
}
|
|
|
/* Create an m68k ELF linker hash table. */
|
/* Create an m68k ELF linker hash table. */
|
|
|
static struct bfd_link_hash_table *
|
static struct bfd_link_hash_table *
|
elf_m68k_link_hash_table_create (abfd)
|
elf_m68k_link_hash_table_create (abfd)
|
bfd *abfd;
|
bfd *abfd;
|
{
|
{
|
struct elf_m68k_link_hash_table *ret;
|
struct elf_m68k_link_hash_table *ret;
|
bfd_size_type amt = sizeof (struct elf_m68k_link_hash_table);
|
bfd_size_type amt = sizeof (struct elf_m68k_link_hash_table);
|
|
|
ret = (struct elf_m68k_link_hash_table *) bfd_malloc (amt);
|
ret = (struct elf_m68k_link_hash_table *) bfd_malloc (amt);
|
if (ret == (struct elf_m68k_link_hash_table *) NULL)
|
if (ret == (struct elf_m68k_link_hash_table *) NULL)
|
return NULL;
|
return NULL;
|
|
|
if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
|
if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
|
elf_m68k_link_hash_newfunc,
|
elf_m68k_link_hash_newfunc,
|
sizeof (struct elf_m68k_link_hash_entry)))
|
sizeof (struct elf_m68k_link_hash_entry)))
|
{
|
{
|
free (ret);
|
free (ret);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
ret->sym_sec.abfd = NULL;
|
ret->sym_sec.abfd = NULL;
|
ret->plt_info = NULL;
|
ret->plt_info = NULL;
|
|
|
return &ret->root.root;
|
return &ret->root.root;
|
}
|
}
|
|
|
/* Set the right machine number. */
|
/* Set the right machine number. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf32_m68k_object_p (bfd *abfd)
|
elf32_m68k_object_p (bfd *abfd)
|
{
|
{
|
unsigned int mach = 0;
|
unsigned int mach = 0;
|
unsigned features = 0;
|
unsigned features = 0;
|
flagword eflags = elf_elfheader (abfd)->e_flags;
|
flagword eflags = elf_elfheader (abfd)->e_flags;
|
|
|
if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_M68000)
|
if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_M68000)
|
features |= m68000;
|
features |= m68000;
|
else if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32)
|
else if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32)
|
features |= cpu32;
|
features |= cpu32;
|
else if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO)
|
else if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO)
|
features |= fido_a;
|
features |= fido_a;
|
else
|
else
|
{
|
{
|
switch (eflags & EF_M68K_CF_ISA_MASK)
|
switch (eflags & EF_M68K_CF_ISA_MASK)
|
{
|
{
|
case EF_M68K_CF_ISA_A_NODIV:
|
case EF_M68K_CF_ISA_A_NODIV:
|
features |= mcfisa_a;
|
features |= mcfisa_a;
|
break;
|
break;
|
case EF_M68K_CF_ISA_A:
|
case EF_M68K_CF_ISA_A:
|
features |= mcfisa_a|mcfhwdiv;
|
features |= mcfisa_a|mcfhwdiv;
|
break;
|
break;
|
case EF_M68K_CF_ISA_A_PLUS:
|
case EF_M68K_CF_ISA_A_PLUS:
|
features |= mcfisa_a|mcfisa_aa|mcfhwdiv|mcfusp;
|
features |= mcfisa_a|mcfisa_aa|mcfhwdiv|mcfusp;
|
break;
|
break;
|
case EF_M68K_CF_ISA_B_NOUSP:
|
case EF_M68K_CF_ISA_B_NOUSP:
|
features |= mcfisa_a|mcfisa_b|mcfhwdiv;
|
features |= mcfisa_a|mcfisa_b|mcfhwdiv;
|
break;
|
break;
|
case EF_M68K_CF_ISA_B:
|
case EF_M68K_CF_ISA_B:
|
features |= mcfisa_a|mcfisa_b|mcfhwdiv|mcfusp;
|
features |= mcfisa_a|mcfisa_b|mcfhwdiv|mcfusp;
|
break;
|
break;
|
case EF_M68K_CF_ISA_C:
|
case EF_M68K_CF_ISA_C:
|
features |= mcfisa_a|mcfisa_c|mcfhwdiv|mcfusp;
|
features |= mcfisa_a|mcfisa_c|mcfhwdiv|mcfusp;
|
break;
|
break;
|
case EF_M68K_CF_ISA_C_NODIV:
|
case EF_M68K_CF_ISA_C_NODIV:
|
features |= mcfisa_a|mcfisa_c|mcfusp;
|
features |= mcfisa_a|mcfisa_c|mcfusp;
|
break;
|
break;
|
}
|
}
|
switch (eflags & EF_M68K_CF_MAC_MASK)
|
switch (eflags & EF_M68K_CF_MAC_MASK)
|
{
|
{
|
case EF_M68K_CF_MAC:
|
case EF_M68K_CF_MAC:
|
features |= mcfmac;
|
features |= mcfmac;
|
break;
|
break;
|
case EF_M68K_CF_EMAC:
|
case EF_M68K_CF_EMAC:
|
features |= mcfemac;
|
features |= mcfemac;
|
break;
|
break;
|
}
|
}
|
if (eflags & EF_M68K_CF_FLOAT)
|
if (eflags & EF_M68K_CF_FLOAT)
|
features |= cfloat;
|
features |= cfloat;
|
}
|
}
|
|
|
mach = bfd_m68k_features_to_mach (features);
|
mach = bfd_m68k_features_to_mach (features);
|
bfd_default_set_arch_mach (abfd, bfd_arch_m68k, mach);
|
bfd_default_set_arch_mach (abfd, bfd_arch_m68k, mach);
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Keep m68k-specific flags in the ELF header. */
|
/* Keep m68k-specific flags in the ELF header. */
|
static bfd_boolean
|
static bfd_boolean
|
elf32_m68k_set_private_flags (abfd, flags)
|
elf32_m68k_set_private_flags (abfd, flags)
|
bfd *abfd;
|
bfd *abfd;
|
flagword flags;
|
flagword flags;
|
{
|
{
|
elf_elfheader (abfd)->e_flags = flags;
|
elf_elfheader (abfd)->e_flags = flags;
|
elf_flags_init (abfd) = TRUE;
|
elf_flags_init (abfd) = TRUE;
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Merge backend specific data from an object file to the output
|
/* Merge backend specific data from an object file to the output
|
object file when linking. */
|
object file when linking. */
|
static bfd_boolean
|
static bfd_boolean
|
elf32_m68k_merge_private_bfd_data (ibfd, obfd)
|
elf32_m68k_merge_private_bfd_data (ibfd, obfd)
|
bfd *ibfd;
|
bfd *ibfd;
|
bfd *obfd;
|
bfd *obfd;
|
{
|
{
|
flagword out_flags;
|
flagword out_flags;
|
flagword in_flags;
|
flagword in_flags;
|
flagword out_isa;
|
flagword out_isa;
|
flagword in_isa;
|
flagword in_isa;
|
const bfd_arch_info_type *arch_info;
|
const bfd_arch_info_type *arch_info;
|
|
|
if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|
if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
|
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
|
return FALSE;
|
return FALSE;
|
|
|
/* Get the merged machine. This checks for incompatibility between
|
/* Get the merged machine. This checks for incompatibility between
|
Coldfire & non-Coldfire flags, incompability between different
|
Coldfire & non-Coldfire flags, incompability between different
|
Coldfire ISAs, and incompability between different MAC types. */
|
Coldfire ISAs, and incompability between different MAC types. */
|
arch_info = bfd_arch_get_compatible (ibfd, obfd, FALSE);
|
arch_info = bfd_arch_get_compatible (ibfd, obfd, FALSE);
|
if (!arch_info)
|
if (!arch_info)
|
return FALSE;
|
return FALSE;
|
|
|
bfd_set_arch_mach (obfd, bfd_arch_m68k, arch_info->mach);
|
bfd_set_arch_mach (obfd, bfd_arch_m68k, arch_info->mach);
|
|
|
in_flags = elf_elfheader (ibfd)->e_flags;
|
in_flags = elf_elfheader (ibfd)->e_flags;
|
if (!elf_flags_init (obfd))
|
if (!elf_flags_init (obfd))
|
{
|
{
|
elf_flags_init (obfd) = TRUE;
|
elf_flags_init (obfd) = TRUE;
|
out_flags = in_flags;
|
out_flags = in_flags;
|
}
|
}
|
else
|
else
|
{
|
{
|
out_flags = elf_elfheader (obfd)->e_flags;
|
out_flags = elf_elfheader (obfd)->e_flags;
|
unsigned int variant_mask;
|
unsigned int variant_mask;
|
|
|
if ((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_M68000)
|
if ((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_M68000)
|
variant_mask = 0;
|
variant_mask = 0;
|
else if ((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32)
|
else if ((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32)
|
variant_mask = 0;
|
variant_mask = 0;
|
else if ((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO)
|
else if ((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO)
|
variant_mask = 0;
|
variant_mask = 0;
|
else
|
else
|
variant_mask = EF_M68K_CF_ISA_MASK;
|
variant_mask = EF_M68K_CF_ISA_MASK;
|
|
|
in_isa = (in_flags & variant_mask);
|
in_isa = (in_flags & variant_mask);
|
out_isa = (out_flags & variant_mask);
|
out_isa = (out_flags & variant_mask);
|
if (in_isa > out_isa)
|
if (in_isa > out_isa)
|
out_flags ^= in_isa ^ out_isa;
|
out_flags ^= in_isa ^ out_isa;
|
if (((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32
|
if (((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32
|
&& (out_flags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO)
|
&& (out_flags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO)
|
|| ((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO
|
|| ((in_flags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO
|
&& (out_flags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32))
|
&& (out_flags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32))
|
out_flags = EF_M68K_FIDO;
|
out_flags = EF_M68K_FIDO;
|
else
|
else
|
out_flags |= in_flags ^ in_isa;
|
out_flags |= in_flags ^ in_isa;
|
}
|
}
|
elf_elfheader (obfd)->e_flags = out_flags;
|
elf_elfheader (obfd)->e_flags = out_flags;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Display the flags field. */
|
/* Display the flags field. */
|
static bfd_boolean
|
static bfd_boolean
|
elf32_m68k_print_private_bfd_data (abfd, ptr)
|
elf32_m68k_print_private_bfd_data (abfd, ptr)
|
bfd *abfd;
|
bfd *abfd;
|
PTR ptr;
|
PTR ptr;
|
{
|
{
|
FILE *file = (FILE *) ptr;
|
FILE *file = (FILE *) ptr;
|
flagword eflags = elf_elfheader (abfd)->e_flags;
|
flagword eflags = elf_elfheader (abfd)->e_flags;
|
|
|
BFD_ASSERT (abfd != NULL && ptr != NULL);
|
BFD_ASSERT (abfd != NULL && ptr != NULL);
|
|
|
/* Print normal ELF private data. */
|
/* Print normal ELF private data. */
|
_bfd_elf_print_private_bfd_data (abfd, ptr);
|
_bfd_elf_print_private_bfd_data (abfd, ptr);
|
|
|
/* Ignore init flag - it may not be set, despite the flags field containing valid data. */
|
/* Ignore init flag - it may not be set, despite the flags field containing valid data. */
|
|
|
/* xgettext:c-format */
|
/* xgettext:c-format */
|
fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
|
fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
|
|
|
if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_M68000)
|
if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_M68000)
|
fprintf (file, " [m68000]");
|
fprintf (file, " [m68000]");
|
else if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32)
|
else if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_CPU32)
|
fprintf (file, " [cpu32]");
|
fprintf (file, " [cpu32]");
|
else if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO)
|
else if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_FIDO)
|
fprintf (file, " [fido]");
|
fprintf (file, " [fido]");
|
else
|
else
|
{
|
{
|
if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_CFV4E)
|
if ((eflags & EF_M68K_ARCH_MASK) == EF_M68K_CFV4E)
|
fprintf (file, " [cfv4e]");
|
fprintf (file, " [cfv4e]");
|
|
|
if (eflags & EF_M68K_CF_ISA_MASK)
|
if (eflags & EF_M68K_CF_ISA_MASK)
|
{
|
{
|
char const *isa = _("unknown");
|
char const *isa = _("unknown");
|
char const *mac = _("unknown");
|
char const *mac = _("unknown");
|
char const *additional = "";
|
char const *additional = "";
|
|
|
switch (eflags & EF_M68K_CF_ISA_MASK)
|
switch (eflags & EF_M68K_CF_ISA_MASK)
|
{
|
{
|
case EF_M68K_CF_ISA_A_NODIV:
|
case EF_M68K_CF_ISA_A_NODIV:
|
isa = "A";
|
isa = "A";
|
additional = " [nodiv]";
|
additional = " [nodiv]";
|
break;
|
break;
|
case EF_M68K_CF_ISA_A:
|
case EF_M68K_CF_ISA_A:
|
isa = "A";
|
isa = "A";
|
break;
|
break;
|
case EF_M68K_CF_ISA_A_PLUS:
|
case EF_M68K_CF_ISA_A_PLUS:
|
isa = "A+";
|
isa = "A+";
|
break;
|
break;
|
case EF_M68K_CF_ISA_B_NOUSP:
|
case EF_M68K_CF_ISA_B_NOUSP:
|
isa = "B";
|
isa = "B";
|
additional = " [nousp]";
|
additional = " [nousp]";
|
break;
|
break;
|
case EF_M68K_CF_ISA_B:
|
case EF_M68K_CF_ISA_B:
|
isa = "B";
|
isa = "B";
|
break;
|
break;
|
case EF_M68K_CF_ISA_C:
|
case EF_M68K_CF_ISA_C:
|
isa = "C";
|
isa = "C";
|
break;
|
break;
|
case EF_M68K_CF_ISA_C_NODIV:
|
case EF_M68K_CF_ISA_C_NODIV:
|
isa = "C";
|
isa = "C";
|
additional = " [nodiv]";
|
additional = " [nodiv]";
|
break;
|
break;
|
}
|
}
|
fprintf (file, " [isa %s]%s", isa, additional);
|
fprintf (file, " [isa %s]%s", isa, additional);
|
if (eflags & EF_M68K_CF_FLOAT)
|
if (eflags & EF_M68K_CF_FLOAT)
|
fprintf (file, " [float]");
|
fprintf (file, " [float]");
|
switch (eflags & EF_M68K_CF_MAC_MASK)
|
switch (eflags & EF_M68K_CF_MAC_MASK)
|
{
|
{
|
case 0:
|
case 0:
|
mac = NULL;
|
mac = NULL;
|
break;
|
break;
|
case EF_M68K_CF_MAC:
|
case EF_M68K_CF_MAC:
|
mac = "mac";
|
mac = "mac";
|
break;
|
break;
|
case EF_M68K_CF_EMAC:
|
case EF_M68K_CF_EMAC:
|
mac = "emac";
|
mac = "emac";
|
break;
|
break;
|
}
|
}
|
if (mac)
|
if (mac)
|
fprintf (file, " [%s]", mac);
|
fprintf (file, " [%s]", mac);
|
}
|
}
|
}
|
}
|
|
|
fputc ('\n', file);
|
fputc ('\n', file);
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
/* Look through the relocs for a section during the first phase, and
|
/* Look through the relocs for a section during the first phase, and
|
allocate space in the global offset table or procedure linkage
|
allocate space in the global offset table or procedure linkage
|
table. */
|
table. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_m68k_check_relocs (abfd, info, sec, relocs)
|
elf_m68k_check_relocs (abfd, info, sec, relocs)
|
bfd *abfd;
|
bfd *abfd;
|
struct bfd_link_info *info;
|
struct bfd_link_info *info;
|
asection *sec;
|
asection *sec;
|
const Elf_Internal_Rela *relocs;
|
const Elf_Internal_Rela *relocs;
|
{
|
{
|
bfd *dynobj;
|
bfd *dynobj;
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
struct elf_link_hash_entry **sym_hashes;
|
struct elf_link_hash_entry **sym_hashes;
|
bfd_signed_vma *local_got_refcounts;
|
bfd_signed_vma *local_got_refcounts;
|
const Elf_Internal_Rela *rel;
|
const Elf_Internal_Rela *rel;
|
const Elf_Internal_Rela *rel_end;
|
const Elf_Internal_Rela *rel_end;
|
asection *sgot;
|
asection *sgot;
|
asection *srelgot;
|
asection *srelgot;
|
asection *sreloc;
|
asection *sreloc;
|
|
|
if (info->relocatable)
|
if (info->relocatable)
|
return TRUE;
|
return TRUE;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
sym_hashes = elf_sym_hashes (abfd);
|
sym_hashes = elf_sym_hashes (abfd);
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
|
|
sgot = NULL;
|
sgot = NULL;
|
srelgot = NULL;
|
srelgot = NULL;
|
sreloc = NULL;
|
sreloc = NULL;
|
|
|
rel_end = relocs + sec->reloc_count;
|
rel_end = relocs + sec->reloc_count;
|
for (rel = relocs; rel < rel_end; rel++)
|
for (rel = relocs; rel < rel_end; rel++)
|
{
|
{
|
unsigned long r_symndx;
|
unsigned long r_symndx;
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
|
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
h = NULL;
|
h = NULL;
|
else
|
else
|
{
|
{
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
while (h->root.type == bfd_link_hash_indirect
|
while (h->root.type == bfd_link_hash_indirect
|
|| h->root.type == bfd_link_hash_warning)
|
|| h->root.type == bfd_link_hash_warning)
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
}
|
}
|
|
|
switch (ELF32_R_TYPE (rel->r_info))
|
switch (ELF32_R_TYPE (rel->r_info))
|
{
|
{
|
case R_68K_GOT8:
|
case R_68K_GOT8:
|
case R_68K_GOT16:
|
case R_68K_GOT16:
|
case R_68K_GOT32:
|
case R_68K_GOT32:
|
if (h != NULL
|
if (h != NULL
|
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
break;
|
break;
|
/* Fall through. */
|
/* Fall through. */
|
case R_68K_GOT8O:
|
case R_68K_GOT8O:
|
case R_68K_GOT16O:
|
case R_68K_GOT16O:
|
case R_68K_GOT32O:
|
case R_68K_GOT32O:
|
/* This symbol requires a global offset table entry. */
|
/* This symbol requires a global offset table entry. */
|
|
|
if (dynobj == NULL)
|
if (dynobj == NULL)
|
{
|
{
|
/* Create the .got section. */
|
/* Create the .got section. */
|
elf_hash_table (info)->dynobj = dynobj = abfd;
|
elf_hash_table (info)->dynobj = dynobj = abfd;
|
if (!_bfd_elf_create_got_section (dynobj, info))
|
if (!_bfd_elf_create_got_section (dynobj, info))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (sgot == NULL)
|
if (sgot == NULL)
|
{
|
{
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
BFD_ASSERT (sgot != NULL);
|
BFD_ASSERT (sgot != NULL);
|
}
|
}
|
|
|
if (srelgot == NULL
|
if (srelgot == NULL
|
&& (h != NULL || info->shared))
|
&& (h != NULL || info->shared))
|
{
|
{
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
if (srelgot == NULL)
|
if (srelgot == NULL)
|
{
|
{
|
srelgot = bfd_make_section_with_flags (dynobj,
|
srelgot = bfd_make_section_with_flags (dynobj,
|
".rela.got",
|
".rela.got",
|
(SEC_ALLOC
|
(SEC_ALLOC
|
| SEC_LOAD
|
| SEC_LOAD
|
| SEC_HAS_CONTENTS
|
| SEC_HAS_CONTENTS
|
| SEC_IN_MEMORY
|
| SEC_IN_MEMORY
|
| SEC_LINKER_CREATED
|
| SEC_LINKER_CREATED
|
| SEC_READONLY));
|
| SEC_READONLY));
|
if (srelgot == NULL
|
if (srelgot == NULL
|
|| !bfd_set_section_alignment (dynobj, srelgot, 2))
|
|| !bfd_set_section_alignment (dynobj, srelgot, 2))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
|
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
if (h->got.refcount == 0)
|
if (h->got.refcount == 0)
|
{
|
{
|
/* Make sure this symbol is output as a dynamic symbol. */
|
/* Make sure this symbol is output as a dynamic symbol. */
|
if (h->dynindx == -1
|
if (h->dynindx == -1
|
&& !h->forced_local)
|
&& !h->forced_local)
|
{
|
{
|
if (!bfd_elf_link_record_dynamic_symbol (info, h))
|
if (!bfd_elf_link_record_dynamic_symbol (info, h))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
/* Allocate space in the .got section. */
|
/* Allocate space in the .got section. */
|
sgot->size += 4;
|
sgot->size += 4;
|
/* Allocate relocation space. */
|
/* Allocate relocation space. */
|
srelgot->size += sizeof (Elf32_External_Rela);
|
srelgot->size += sizeof (Elf32_External_Rela);
|
}
|
}
|
h->got.refcount++;
|
h->got.refcount++;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* This is a global offset table entry for a local symbol. */
|
/* This is a global offset table entry for a local symbol. */
|
if (local_got_refcounts == NULL)
|
if (local_got_refcounts == NULL)
|
{
|
{
|
bfd_size_type size;
|
bfd_size_type size;
|
|
|
size = symtab_hdr->sh_info;
|
size = symtab_hdr->sh_info;
|
size *= sizeof (bfd_signed_vma);
|
size *= sizeof (bfd_signed_vma);
|
local_got_refcounts = ((bfd_signed_vma *)
|
local_got_refcounts = ((bfd_signed_vma *)
|
bfd_zalloc (abfd, size));
|
bfd_zalloc (abfd, size));
|
if (local_got_refcounts == NULL)
|
if (local_got_refcounts == NULL)
|
return FALSE;
|
return FALSE;
|
elf_local_got_refcounts (abfd) = local_got_refcounts;
|
elf_local_got_refcounts (abfd) = local_got_refcounts;
|
}
|
}
|
if (local_got_refcounts[r_symndx] == 0)
|
if (local_got_refcounts[r_symndx] == 0)
|
{
|
{
|
sgot->size += 4;
|
sgot->size += 4;
|
if (info->shared)
|
if (info->shared)
|
{
|
{
|
/* If we are generating a shared object, we need to
|
/* If we are generating a shared object, we need to
|
output a R_68K_RELATIVE reloc so that the dynamic
|
output a R_68K_RELATIVE reloc so that the dynamic
|
linker can adjust this GOT entry. */
|
linker can adjust this GOT entry. */
|
srelgot->size += sizeof (Elf32_External_Rela);
|
srelgot->size += sizeof (Elf32_External_Rela);
|
}
|
}
|
}
|
}
|
local_got_refcounts[r_symndx]++;
|
local_got_refcounts[r_symndx]++;
|
}
|
}
|
break;
|
break;
|
|
|
case R_68K_PLT8:
|
case R_68K_PLT8:
|
case R_68K_PLT16:
|
case R_68K_PLT16:
|
case R_68K_PLT32:
|
case R_68K_PLT32:
|
/* This symbol requires a procedure linkage table entry. We
|
/* This symbol requires a procedure linkage table entry. We
|
actually build the entry in adjust_dynamic_symbol,
|
actually build the entry in adjust_dynamic_symbol,
|
because this might be a case of linking PIC code which is
|
because this might be a case of linking PIC code which is
|
never referenced by a dynamic object, in which case we
|
never referenced by a dynamic object, in which case we
|
don't need to generate a procedure linkage table entry
|
don't need to generate a procedure linkage table entry
|
after all. */
|
after all. */
|
|
|
/* If this is a local symbol, we resolve it directly without
|
/* If this is a local symbol, we resolve it directly without
|
creating a procedure linkage table entry. */
|
creating a procedure linkage table entry. */
|
if (h == NULL)
|
if (h == NULL)
|
continue;
|
continue;
|
|
|
h->needs_plt = 1;
|
h->needs_plt = 1;
|
h->plt.refcount++;
|
h->plt.refcount++;
|
break;
|
break;
|
|
|
case R_68K_PLT8O:
|
case R_68K_PLT8O:
|
case R_68K_PLT16O:
|
case R_68K_PLT16O:
|
case R_68K_PLT32O:
|
case R_68K_PLT32O:
|
/* This symbol requires a procedure linkage table entry. */
|
/* This symbol requires a procedure linkage table entry. */
|
|
|
if (h == NULL)
|
if (h == NULL)
|
{
|
{
|
/* It does not make sense to have this relocation for a
|
/* It does not make sense to have this relocation for a
|
local symbol. FIXME: does it? How to handle it if
|
local symbol. FIXME: does it? How to handle it if
|
it does make sense? */
|
it does make sense? */
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
/* Make sure this symbol is output as a dynamic symbol. */
|
/* Make sure this symbol is output as a dynamic symbol. */
|
if (h->dynindx == -1
|
if (h->dynindx == -1
|
&& !h->forced_local)
|
&& !h->forced_local)
|
{
|
{
|
if (!bfd_elf_link_record_dynamic_symbol (info, h))
|
if (!bfd_elf_link_record_dynamic_symbol (info, h))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
h->needs_plt = 1;
|
h->needs_plt = 1;
|
h->plt.refcount++;
|
h->plt.refcount++;
|
break;
|
break;
|
|
|
case R_68K_PC8:
|
case R_68K_PC8:
|
case R_68K_PC16:
|
case R_68K_PC16:
|
case R_68K_PC32:
|
case R_68K_PC32:
|
/* If we are creating a shared library and this is not a local
|
/* If we are creating a shared library and this is not a local
|
symbol, we need to copy the reloc into the shared library.
|
symbol, we need to copy the reloc into the shared library.
|
However when linking with -Bsymbolic and this is a global
|
However when linking with -Bsymbolic and this is a global
|
symbol which is defined in an object we are including in the
|
symbol which is defined in an object we are including in the
|
link (i.e., DEF_REGULAR is set), then we can resolve the
|
link (i.e., DEF_REGULAR is set), then we can resolve the
|
reloc directly. At this point we have not seen all the input
|
reloc directly. At this point we have not seen all the input
|
files, so it is possible that DEF_REGULAR is not set now but
|
files, so it is possible that DEF_REGULAR is not set now but
|
will be set later (it is never cleared). We account for that
|
will be set later (it is never cleared). We account for that
|
possibility below by storing information in the
|
possibility below by storing information in the
|
pcrel_relocs_copied field of the hash table entry. */
|
pcrel_relocs_copied field of the hash table entry. */
|
if (!(info->shared
|
if (!(info->shared
|
&& (sec->flags & SEC_ALLOC) != 0
|
&& (sec->flags & SEC_ALLOC) != 0
|
&& h != NULL
|
&& h != NULL
|
&& (!info->symbolic
|
&& (!info->symbolic
|
|| h->root.type == bfd_link_hash_defweak
|
|| h->root.type == bfd_link_hash_defweak
|
|| !h->def_regular)))
|
|| !h->def_regular)))
|
{
|
{
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
/* Make sure a plt entry is created for this symbol if
|
/* Make sure a plt entry is created for this symbol if
|
it turns out to be a function defined by a dynamic
|
it turns out to be a function defined by a dynamic
|
object. */
|
object. */
|
h->plt.refcount++;
|
h->plt.refcount++;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
/* Fall through. */
|
/* Fall through. */
|
case R_68K_8:
|
case R_68K_8:
|
case R_68K_16:
|
case R_68K_16:
|
case R_68K_32:
|
case R_68K_32:
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
/* Make sure a plt entry is created for this symbol if it
|
/* Make sure a plt entry is created for this symbol if it
|
turns out to be a function defined by a dynamic object. */
|
turns out to be a function defined by a dynamic object. */
|
h->plt.refcount++;
|
h->plt.refcount++;
|
}
|
}
|
|
|
/* If we are creating a shared library, we need to copy the
|
/* If we are creating a shared library, we need to copy the
|
reloc into the shared library. */
|
reloc into the shared library. */
|
if (info->shared
|
if (info->shared
|
&& (sec->flags & SEC_ALLOC) != 0)
|
&& (sec->flags & SEC_ALLOC) != 0)
|
{
|
{
|
/* When creating a shared object, we must copy these
|
/* When creating a shared object, we must copy these
|
reloc types into the output file. We create a reloc
|
reloc types into the output file. We create a reloc
|
section in dynobj and make room for this reloc. */
|
section in dynobj and make room for this reloc. */
|
if (sreloc == NULL)
|
if (sreloc == NULL)
|
{
|
{
|
const char *name;
|
const char *name;
|
|
|
name = (bfd_elf_string_from_elf_section
|
name = (bfd_elf_string_from_elf_section
|
(abfd,
|
(abfd,
|
elf_elfheader (abfd)->e_shstrndx,
|
elf_elfheader (abfd)->e_shstrndx,
|
elf_section_data (sec)->rel_hdr.sh_name));
|
elf_section_data (sec)->rel_hdr.sh_name));
|
if (name == NULL)
|
if (name == NULL)
|
return FALSE;
|
return FALSE;
|
|
|
BFD_ASSERT (CONST_STRNEQ (name, ".rela")
|
BFD_ASSERT (CONST_STRNEQ (name, ".rela")
|
&& strcmp (bfd_get_section_name (abfd, sec),
|
&& strcmp (bfd_get_section_name (abfd, sec),
|
name + 5) == 0);
|
name + 5) == 0);
|
|
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
if (sreloc == NULL)
|
if (sreloc == NULL)
|
{
|
{
|
sreloc = bfd_make_section_with_flags (dynobj,
|
sreloc = bfd_make_section_with_flags (dynobj,
|
name,
|
name,
|
(SEC_ALLOC
|
(SEC_ALLOC
|
| SEC_LOAD
|
| SEC_LOAD
|
| SEC_HAS_CONTENTS
|
| SEC_HAS_CONTENTS
|
| SEC_IN_MEMORY
|
| SEC_IN_MEMORY
|
| SEC_LINKER_CREATED
|
| SEC_LINKER_CREATED
|
| SEC_READONLY));
|
| SEC_READONLY));
|
if (sreloc == NULL
|
if (sreloc == NULL
|
|| !bfd_set_section_alignment (dynobj, sreloc, 2))
|
|| !bfd_set_section_alignment (dynobj, sreloc, 2))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
elf_section_data (sec)->sreloc = sreloc;
|
elf_section_data (sec)->sreloc = sreloc;
|
}
|
}
|
|
|
if (sec->flags & SEC_READONLY
|
if (sec->flags & SEC_READONLY
|
/* Don't set DF_TEXTREL yet for PC relative
|
/* Don't set DF_TEXTREL yet for PC relative
|
relocations, they might be discarded later. */
|
relocations, they might be discarded later. */
|
&& !(ELF32_R_TYPE (rel->r_info) == R_68K_PC8
|
&& !(ELF32_R_TYPE (rel->r_info) == R_68K_PC8
|
|| ELF32_R_TYPE (rel->r_info) == R_68K_PC16
|
|| ELF32_R_TYPE (rel->r_info) == R_68K_PC16
|
|| ELF32_R_TYPE (rel->r_info) == R_68K_PC32))
|
|| ELF32_R_TYPE (rel->r_info) == R_68K_PC32))
|
info->flags |= DF_TEXTREL;
|
info->flags |= DF_TEXTREL;
|
|
|
sreloc->size += sizeof (Elf32_External_Rela);
|
sreloc->size += sizeof (Elf32_External_Rela);
|
|
|
/* We count the number of PC relative relocations we have
|
/* We count the number of PC relative relocations we have
|
entered for this symbol, so that we can discard them
|
entered for this symbol, so that we can discard them
|
again if, in the -Bsymbolic case, the symbol is later
|
again if, in the -Bsymbolic case, the symbol is later
|
defined by a regular object, or, in the normal shared
|
defined by a regular object, or, in the normal shared
|
case, the symbol is forced to be local. Note that this
|
case, the symbol is forced to be local. Note that this
|
function is only called if we are using an m68kelf linker
|
function is only called if we are using an m68kelf linker
|
hash table, which means that h is really a pointer to an
|
hash table, which means that h is really a pointer to an
|
elf_m68k_link_hash_entry. */
|
elf_m68k_link_hash_entry. */
|
if (ELF32_R_TYPE (rel->r_info) == R_68K_PC8
|
if (ELF32_R_TYPE (rel->r_info) == R_68K_PC8
|
|| ELF32_R_TYPE (rel->r_info) == R_68K_PC16
|
|| ELF32_R_TYPE (rel->r_info) == R_68K_PC16
|
|| ELF32_R_TYPE (rel->r_info) == R_68K_PC32)
|
|| ELF32_R_TYPE (rel->r_info) == R_68K_PC32)
|
{
|
{
|
struct elf_m68k_pcrel_relocs_copied *p;
|
struct elf_m68k_pcrel_relocs_copied *p;
|
struct elf_m68k_pcrel_relocs_copied **head;
|
struct elf_m68k_pcrel_relocs_copied **head;
|
|
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
struct elf_m68k_link_hash_entry *eh
|
struct elf_m68k_link_hash_entry *eh
|
= elf_m68k_hash_entry (h);
|
= elf_m68k_hash_entry (h);
|
head = &eh->pcrel_relocs_copied;
|
head = &eh->pcrel_relocs_copied;
|
}
|
}
|
else
|
else
|
{
|
{
|
asection *s;
|
asection *s;
|
void *vpp;
|
void *vpp;
|
|
|
s = (bfd_section_from_r_symndx
|
s = (bfd_section_from_r_symndx
|
(abfd, &elf_m68k_hash_table (info)->sym_sec,
|
(abfd, &elf_m68k_hash_table (info)->sym_sec,
|
sec, r_symndx));
|
sec, r_symndx));
|
if (s == NULL)
|
if (s == NULL)
|
return FALSE;
|
return FALSE;
|
|
|
vpp = &elf_section_data (s)->local_dynrel;
|
vpp = &elf_section_data (s)->local_dynrel;
|
head = (struct elf_m68k_pcrel_relocs_copied **) vpp;
|
head = (struct elf_m68k_pcrel_relocs_copied **) vpp;
|
}
|
}
|
|
|
for (p = *head; p != NULL; p = p->next)
|
for (p = *head; p != NULL; p = p->next)
|
if (p->section == sreloc)
|
if (p->section == sreloc)
|
break;
|
break;
|
|
|
if (p == NULL)
|
if (p == NULL)
|
{
|
{
|
p = ((struct elf_m68k_pcrel_relocs_copied *)
|
p = ((struct elf_m68k_pcrel_relocs_copied *)
|
bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
|
bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
|
if (p == NULL)
|
if (p == NULL)
|
return FALSE;
|
return FALSE;
|
p->next = *head;
|
p->next = *head;
|
*head = p;
|
*head = p;
|
p->section = sreloc;
|
p->section = sreloc;
|
p->count = 0;
|
p->count = 0;
|
}
|
}
|
|
|
++p->count;
|
++p->count;
|
}
|
}
|
}
|
}
|
|
|
break;
|
break;
|
|
|
/* This relocation describes the C++ object vtable hierarchy.
|
/* This relocation describes the C++ object vtable hierarchy.
|
Reconstruct it for later use during GC. */
|
Reconstruct it for later use during GC. */
|
case R_68K_GNU_VTINHERIT:
|
case R_68K_GNU_VTINHERIT:
|
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
return FALSE;
|
return FALSE;
|
break;
|
break;
|
|
|
/* This relocation describes which C++ vtable entries are actually
|
/* This relocation describes which C++ vtable entries are actually
|
used. Record for later use during GC. */
|
used. Record for later use during GC. */
|
case R_68K_GNU_VTENTRY:
|
case R_68K_GNU_VTENTRY:
|
BFD_ASSERT (h != NULL);
|
BFD_ASSERT (h != NULL);
|
if (h != NULL
|
if (h != NULL
|
&& !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
&& !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
return FALSE;
|
return FALSE;
|
break;
|
break;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Return the section that should be marked against GC for a given
|
/* Return the section that should be marked against GC for a given
|
relocation. */
|
relocation. */
|
|
|
static asection *
|
static asection *
|
elf_m68k_gc_mark_hook (asection *sec,
|
elf_m68k_gc_mark_hook (asection *sec,
|
struct bfd_link_info *info,
|
struct bfd_link_info *info,
|
Elf_Internal_Rela *rel,
|
Elf_Internal_Rela *rel,
|
struct elf_link_hash_entry *h,
|
struct elf_link_hash_entry *h,
|
Elf_Internal_Sym *sym)
|
Elf_Internal_Sym *sym)
|
{
|
{
|
if (h != NULL)
|
if (h != NULL)
|
switch (ELF32_R_TYPE (rel->r_info))
|
switch (ELF32_R_TYPE (rel->r_info))
|
{
|
{
|
case R_68K_GNU_VTINHERIT:
|
case R_68K_GNU_VTINHERIT:
|
case R_68K_GNU_VTENTRY:
|
case R_68K_GNU_VTENTRY:
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
|
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
|
}
|
}
|
|
|
/* Update the got entry reference counts for the section being removed. */
|
/* Update the got entry reference counts for the section being removed. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_m68k_gc_sweep_hook (bfd *abfd,
|
elf_m68k_gc_sweep_hook (bfd *abfd,
|
struct bfd_link_info *info,
|
struct bfd_link_info *info,
|
asection *sec,
|
asection *sec,
|
const Elf_Internal_Rela *relocs)
|
const Elf_Internal_Rela *relocs)
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
struct elf_link_hash_entry **sym_hashes;
|
struct elf_link_hash_entry **sym_hashes;
|
bfd_signed_vma *local_got_refcounts;
|
bfd_signed_vma *local_got_refcounts;
|
const Elf_Internal_Rela *rel, *relend;
|
const Elf_Internal_Rela *rel, *relend;
|
bfd *dynobj;
|
bfd *dynobj;
|
asection *sgot;
|
asection *sgot;
|
asection *srelgot;
|
asection *srelgot;
|
|
|
if (info->relocatable)
|
if (info->relocatable)
|
return TRUE;
|
return TRUE;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
if (dynobj == NULL)
|
if (dynobj == NULL)
|
return TRUE;
|
return TRUE;
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
sym_hashes = elf_sym_hashes (abfd);
|
sym_hashes = elf_sym_hashes (abfd);
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
|
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
|
|
relend = relocs + sec->reloc_count;
|
relend = relocs + sec->reloc_count;
|
for (rel = relocs; rel < relend; rel++)
|
for (rel = relocs; rel < relend; rel++)
|
{
|
{
|
unsigned long r_symndx;
|
unsigned long r_symndx;
|
struct elf_link_hash_entry *h = NULL;
|
struct elf_link_hash_entry *h = NULL;
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
if (r_symndx >= symtab_hdr->sh_info)
|
if (r_symndx >= symtab_hdr->sh_info)
|
{
|
{
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
while (h->root.type == bfd_link_hash_indirect
|
while (h->root.type == bfd_link_hash_indirect
|
|| h->root.type == bfd_link_hash_warning)
|
|| h->root.type == bfd_link_hash_warning)
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
}
|
}
|
|
|
switch (ELF32_R_TYPE (rel->r_info))
|
switch (ELF32_R_TYPE (rel->r_info))
|
{
|
{
|
case R_68K_GOT8:
|
case R_68K_GOT8:
|
case R_68K_GOT16:
|
case R_68K_GOT16:
|
case R_68K_GOT32:
|
case R_68K_GOT32:
|
case R_68K_GOT8O:
|
case R_68K_GOT8O:
|
case R_68K_GOT16O:
|
case R_68K_GOT16O:
|
case R_68K_GOT32O:
|
case R_68K_GOT32O:
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
if (h->got.refcount > 0)
|
if (h->got.refcount > 0)
|
{
|
{
|
--h->got.refcount;
|
--h->got.refcount;
|
if (h->got.refcount == 0)
|
if (h->got.refcount == 0)
|
{
|
{
|
/* We don't need the .got entry any more. */
|
/* We don't need the .got entry any more. */
|
sgot->size -= 4;
|
sgot->size -= 4;
|
srelgot->size -= sizeof (Elf32_External_Rela);
|
srelgot->size -= sizeof (Elf32_External_Rela);
|
}
|
}
|
}
|
}
|
}
|
}
|
else if (local_got_refcounts != NULL)
|
else if (local_got_refcounts != NULL)
|
{
|
{
|
if (local_got_refcounts[r_symndx] > 0)
|
if (local_got_refcounts[r_symndx] > 0)
|
{
|
{
|
--local_got_refcounts[r_symndx];
|
--local_got_refcounts[r_symndx];
|
if (local_got_refcounts[r_symndx] == 0)
|
if (local_got_refcounts[r_symndx] == 0)
|
{
|
{
|
/* We don't need the .got entry any more. */
|
/* We don't need the .got entry any more. */
|
sgot->size -= 4;
|
sgot->size -= 4;
|
if (info->shared)
|
if (info->shared)
|
srelgot->size -= sizeof (Elf32_External_Rela);
|
srelgot->size -= sizeof (Elf32_External_Rela);
|
}
|
}
|
}
|
}
|
}
|
}
|
break;
|
break;
|
|
|
case R_68K_PLT8:
|
case R_68K_PLT8:
|
case R_68K_PLT16:
|
case R_68K_PLT16:
|
case R_68K_PLT32:
|
case R_68K_PLT32:
|
case R_68K_PLT8O:
|
case R_68K_PLT8O:
|
case R_68K_PLT16O:
|
case R_68K_PLT16O:
|
case R_68K_PLT32O:
|
case R_68K_PLT32O:
|
case R_68K_PC8:
|
case R_68K_PC8:
|
case R_68K_PC16:
|
case R_68K_PC16:
|
case R_68K_PC32:
|
case R_68K_PC32:
|
case R_68K_8:
|
case R_68K_8:
|
case R_68K_16:
|
case R_68K_16:
|
case R_68K_32:
|
case R_68K_32:
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
if (h->plt.refcount > 0)
|
if (h->plt.refcount > 0)
|
--h->plt.refcount;
|
--h->plt.refcount;
|
}
|
}
|
break;
|
break;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Return the type of PLT associated with OUTPUT_BFD. */
|
/* Return the type of PLT associated with OUTPUT_BFD. */
|
|
|
static const struct elf_m68k_plt_info *
|
static const struct elf_m68k_plt_info *
|
elf_m68k_get_plt_info (bfd *output_bfd)
|
elf_m68k_get_plt_info (bfd *output_bfd)
|
{
|
{
|
unsigned int features;
|
unsigned int features;
|
|
|
features = bfd_m68k_mach_to_features (bfd_get_mach (output_bfd));
|
features = bfd_m68k_mach_to_features (bfd_get_mach (output_bfd));
|
if (features & cpu32)
|
if (features & cpu32)
|
return &elf_cpu32_plt_info;
|
return &elf_cpu32_plt_info;
|
if (features & mcfisa_b)
|
if (features & mcfisa_b)
|
return &elf_isab_plt_info;
|
return &elf_isab_plt_info;
|
if (features & mcfisa_c)
|
if (features & mcfisa_c)
|
return &elf_isac_plt_info;
|
return &elf_isac_plt_info;
|
return &elf_m68k_plt_info;
|
return &elf_m68k_plt_info;
|
}
|
}
|
|
|
/* This function is called after all the input files have been read,
|
/* This function is called after all the input files have been read,
|
and the input sections have been assigned to output sections.
|
and the input sections have been assigned to output sections.
|
It's a convenient place to determine the PLT style. */
|
It's a convenient place to determine the PLT style. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_m68k_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
|
elf_m68k_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
|
{
|
{
|
elf_m68k_hash_table (info)->plt_info = elf_m68k_get_plt_info (output_bfd);
|
elf_m68k_hash_table (info)->plt_info = elf_m68k_get_plt_info (output_bfd);
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Adjust a symbol defined by a dynamic object and referenced by a
|
/* Adjust a symbol defined by a dynamic object and referenced by a
|
regular object. The current definition is in some section of the
|
regular object. The current definition is in some section of the
|
dynamic object, but we're not including those sections. We have to
|
dynamic object, but we're not including those sections. We have to
|
change the definition to something the rest of the link can
|
change the definition to something the rest of the link can
|
understand. */
|
understand. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_m68k_adjust_dynamic_symbol (info, h)
|
elf_m68k_adjust_dynamic_symbol (info, h)
|
struct bfd_link_info *info;
|
struct bfd_link_info *info;
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
{
|
{
|
struct elf_m68k_link_hash_table *htab;
|
struct elf_m68k_link_hash_table *htab;
|
bfd *dynobj;
|
bfd *dynobj;
|
asection *s;
|
asection *s;
|
|
|
htab = elf_m68k_hash_table (info);
|
htab = elf_m68k_hash_table (info);
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
/* Make sure we know what is going on here. */
|
/* Make sure we know what is going on here. */
|
BFD_ASSERT (dynobj != NULL
|
BFD_ASSERT (dynobj != NULL
|
&& (h->needs_plt
|
&& (h->needs_plt
|
|| h->u.weakdef != NULL
|
|| h->u.weakdef != NULL
|
|| (h->def_dynamic
|
|| (h->def_dynamic
|
&& h->ref_regular
|
&& h->ref_regular
|
&& !h->def_regular)));
|
&& !h->def_regular)));
|
|
|
/* If this is a function, put it in the procedure linkage table. We
|
/* If this is a function, put it in the procedure linkage table. We
|
will fill in the contents of the procedure linkage table later,
|
will fill in the contents of the procedure linkage table later,
|
when we know the address of the .got section. */
|
when we know the address of the .got section. */
|
if (h->type == STT_FUNC
|
if (h->type == STT_FUNC
|
|| h->needs_plt)
|
|| h->needs_plt)
|
{
|
{
|
if ((h->plt.refcount <= 0
|
if ((h->plt.refcount <= 0
|
|| SYMBOL_CALLS_LOCAL (info, h)
|
|| SYMBOL_CALLS_LOCAL (info, h)
|
|| (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
|
|| (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
|
&& h->root.type == bfd_link_hash_undefweak))
|
&& h->root.type == bfd_link_hash_undefweak))
|
/* We must always create the plt entry if it was referenced
|
/* We must always create the plt entry if it was referenced
|
by a PLTxxO relocation. In this case we already recorded
|
by a PLTxxO relocation. In this case we already recorded
|
it as a dynamic symbol. */
|
it as a dynamic symbol. */
|
&& h->dynindx == -1)
|
&& h->dynindx == -1)
|
{
|
{
|
/* This case can occur if we saw a PLTxx reloc in an input
|
/* This case can occur if we saw a PLTxx reloc in an input
|
file, but the symbol was never referred to by a dynamic
|
file, but the symbol was never referred to by a dynamic
|
object, or if all references were garbage collected. In
|
object, or if all references were garbage collected. In
|
such a case, we don't actually need to build a procedure
|
such a case, we don't actually need to build a procedure
|
linkage table, and we can just do a PCxx reloc instead. */
|
linkage table, and we can just do a PCxx reloc instead. */
|
h->plt.offset = (bfd_vma) -1;
|
h->plt.offset = (bfd_vma) -1;
|
h->needs_plt = 0;
|
h->needs_plt = 0;
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Make sure this symbol is output as a dynamic symbol. */
|
/* Make sure this symbol is output as a dynamic symbol. */
|
if (h->dynindx == -1
|
if (h->dynindx == -1
|
&& !h->forced_local)
|
&& !h->forced_local)
|
{
|
{
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
s = bfd_get_section_by_name (dynobj, ".plt");
|
s = bfd_get_section_by_name (dynobj, ".plt");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
|
|
/* If this is the first .plt entry, make room for the special
|
/* If this is the first .plt entry, make room for the special
|
first entry. */
|
first entry. */
|
if (s->size == 0)
|
if (s->size == 0)
|
s->size = htab->plt_info->size;
|
s->size = htab->plt_info->size;
|
|
|
/* If this symbol is not defined in a regular file, and we are
|
/* If this symbol is not defined in a regular file, and we are
|
not generating a shared library, then set the symbol to this
|
not generating a shared library, then set the symbol to this
|
location in the .plt. This is required to make function
|
location in the .plt. This is required to make function
|
pointers compare as equal between the normal executable and
|
pointers compare as equal between the normal executable and
|
the shared library. */
|
the shared library. */
|
if (!info->shared
|
if (!info->shared
|
&& !h->def_regular)
|
&& !h->def_regular)
|
{
|
{
|
h->root.u.def.section = s;
|
h->root.u.def.section = s;
|
h->root.u.def.value = s->size;
|
h->root.u.def.value = s->size;
|
}
|
}
|
|
|
h->plt.offset = s->size;
|
h->plt.offset = s->size;
|
|
|
/* Make room for this entry. */
|
/* Make room for this entry. */
|
s->size += htab->plt_info->size;
|
s->size += htab->plt_info->size;
|
|
|
/* We also need to make an entry in the .got.plt section, which
|
/* We also need to make an entry in the .got.plt section, which
|
will be placed in the .got section by the linker script. */
|
will be placed in the .got section by the linker script. */
|
s = bfd_get_section_by_name (dynobj, ".got.plt");
|
s = bfd_get_section_by_name (dynobj, ".got.plt");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
s->size += 4;
|
s->size += 4;
|
|
|
/* We also need to make an entry in the .rela.plt section. */
|
/* We also need to make an entry in the .rela.plt section. */
|
s = bfd_get_section_by_name (dynobj, ".rela.plt");
|
s = bfd_get_section_by_name (dynobj, ".rela.plt");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
s->size += sizeof (Elf32_External_Rela);
|
s->size += sizeof (Elf32_External_Rela);
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Reinitialize the plt offset now that it is not used as a reference
|
/* Reinitialize the plt offset now that it is not used as a reference
|
count any more. */
|
count any more. */
|
h->plt.offset = (bfd_vma) -1;
|
h->plt.offset = (bfd_vma) -1;
|
|
|
/* If this is a weak symbol, and there is a real definition, the
|
/* If this is a weak symbol, and there is a real definition, the
|
processor independent code will have arranged for us to see the
|
processor independent code will have arranged for us to see the
|
real definition first, and we can just use the same value. */
|
real definition first, and we can just use the same value. */
|
if (h->u.weakdef != NULL)
|
if (h->u.weakdef != NULL)
|
{
|
{
|
BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
|
BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
|
|| h->u.weakdef->root.type == bfd_link_hash_defweak);
|
|| h->u.weakdef->root.type == bfd_link_hash_defweak);
|
h->root.u.def.section = h->u.weakdef->root.u.def.section;
|
h->root.u.def.section = h->u.weakdef->root.u.def.section;
|
h->root.u.def.value = h->u.weakdef->root.u.def.value;
|
h->root.u.def.value = h->u.weakdef->root.u.def.value;
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* This is a reference to a symbol defined by a dynamic object which
|
/* This is a reference to a symbol defined by a dynamic object which
|
is not a function. */
|
is not a function. */
|
|
|
/* If we are creating a shared library, we must presume that the
|
/* If we are creating a shared library, we must presume that the
|
only references to the symbol are via the global offset table.
|
only references to the symbol are via the global offset table.
|
For such cases we need not do anything here; the relocations will
|
For such cases we need not do anything here; the relocations will
|
be handled correctly by relocate_section. */
|
be handled correctly by relocate_section. */
|
if (info->shared)
|
if (info->shared)
|
return TRUE;
|
return TRUE;
|
|
|
if (h->size == 0)
|
if (h->size == 0)
|
{
|
{
|
(*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
|
(*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
|
h->root.root.string);
|
h->root.root.string);
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* We must allocate the symbol in our .dynbss section, which will
|
/* We must allocate the symbol in our .dynbss section, which will
|
become part of the .bss section of the executable. There will be
|
become part of the .bss section of the executable. There will be
|
an entry for this symbol in the .dynsym section. The dynamic
|
an entry for this symbol in the .dynsym section. The dynamic
|
object will contain position independent code, so all references
|
object will contain position independent code, so all references
|
from the dynamic object to this symbol will go through the global
|
from the dynamic object to this symbol will go through the global
|
offset table. The dynamic linker will use the .dynsym entry to
|
offset table. The dynamic linker will use the .dynsym entry to
|
determine the address it must put in the global offset table, so
|
determine the address it must put in the global offset table, so
|
both the dynamic object and the regular object will refer to the
|
both the dynamic object and the regular object will refer to the
|
same memory location for the variable. */
|
same memory location for the variable. */
|
|
|
s = bfd_get_section_by_name (dynobj, ".dynbss");
|
s = bfd_get_section_by_name (dynobj, ".dynbss");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
|
|
/* We must generate a R_68K_COPY reloc to tell the dynamic linker to
|
/* We must generate a R_68K_COPY reloc to tell the dynamic linker to
|
copy the initial value out of the dynamic object and into the
|
copy the initial value out of the dynamic object and into the
|
runtime process image. We need to remember the offset into the
|
runtime process image. We need to remember the offset into the
|
.rela.bss section we are going to use. */
|
.rela.bss section we are going to use. */
|
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
|
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
|
{
|
{
|
asection *srel;
|
asection *srel;
|
|
|
srel = bfd_get_section_by_name (dynobj, ".rela.bss");
|
srel = bfd_get_section_by_name (dynobj, ".rela.bss");
|
BFD_ASSERT (srel != NULL);
|
BFD_ASSERT (srel != NULL);
|
srel->size += sizeof (Elf32_External_Rela);
|
srel->size += sizeof (Elf32_External_Rela);
|
h->needs_copy = 1;
|
h->needs_copy = 1;
|
}
|
}
|
|
|
return _bfd_elf_adjust_dynamic_copy (h, s);
|
return _bfd_elf_adjust_dynamic_copy (h, s);
|
}
|
}
|
|
|
/* Set the sizes of the dynamic sections. */
|
/* Set the sizes of the dynamic sections. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_m68k_size_dynamic_sections (output_bfd, info)
|
elf_m68k_size_dynamic_sections (output_bfd, info)
|
bfd *output_bfd ATTRIBUTE_UNUSED;
|
bfd *output_bfd ATTRIBUTE_UNUSED;
|
struct bfd_link_info *info;
|
struct bfd_link_info *info;
|
{
|
{
|
bfd *dynobj;
|
bfd *dynobj;
|
asection *s;
|
asection *s;
|
bfd_boolean plt;
|
bfd_boolean plt;
|
bfd_boolean relocs;
|
bfd_boolean relocs;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
BFD_ASSERT (dynobj != NULL);
|
BFD_ASSERT (dynobj != NULL);
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
if (elf_hash_table (info)->dynamic_sections_created)
|
{
|
{
|
/* Set the contents of the .interp section to the interpreter. */
|
/* Set the contents of the .interp section to the interpreter. */
|
if (info->executable)
|
if (info->executable)
|
{
|
{
|
s = bfd_get_section_by_name (dynobj, ".interp");
|
s = bfd_get_section_by_name (dynobj, ".interp");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
s->size = sizeof ELF_DYNAMIC_INTERPRETER;
|
s->size = sizeof ELF_DYNAMIC_INTERPRETER;
|
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
|
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
/* We may have created entries in the .rela.got section.
|
/* We may have created entries in the .rela.got section.
|
However, if we are not creating the dynamic sections, we will
|
However, if we are not creating the dynamic sections, we will
|
not actually use these entries. Reset the size of .rela.got,
|
not actually use these entries. Reset the size of .rela.got,
|
which will cause it to get stripped from the output file
|
which will cause it to get stripped from the output file
|
below. */
|
below. */
|
s = bfd_get_section_by_name (dynobj, ".rela.got");
|
s = bfd_get_section_by_name (dynobj, ".rela.got");
|
if (s != NULL)
|
if (s != NULL)
|
s->size = 0;
|
s->size = 0;
|
}
|
}
|
|
|
/* If this is a -Bsymbolic shared link, then we need to discard all
|
/* If this is a -Bsymbolic shared link, then we need to discard all
|
PC relative relocs against symbols defined in a regular object.
|
PC relative relocs against symbols defined in a regular object.
|
For the normal shared case we discard the PC relative relocs
|
For the normal shared case we discard the PC relative relocs
|
against symbols that have become local due to visibility changes.
|
against symbols that have become local due to visibility changes.
|
We allocated space for them in the check_relocs routine, but we
|
We allocated space for them in the check_relocs routine, but we
|
will not fill them in in the relocate_section routine. */
|
will not fill them in in the relocate_section routine. */
|
if (info->shared)
|
if (info->shared)
|
elf_link_hash_traverse (elf_hash_table (info),
|
elf_link_hash_traverse (elf_hash_table (info),
|
elf_m68k_discard_copies,
|
elf_m68k_discard_copies,
|
(PTR) info);
|
(PTR) info);
|
|
|
/* The check_relocs and adjust_dynamic_symbol entry points have
|
/* The check_relocs and adjust_dynamic_symbol entry points have
|
determined the sizes of the various dynamic sections. Allocate
|
determined the sizes of the various dynamic sections. Allocate
|
memory for them. */
|
memory for them. */
|
plt = FALSE;
|
plt = FALSE;
|
relocs = FALSE;
|
relocs = FALSE;
|
for (s = dynobj->sections; s != NULL; s = s->next)
|
for (s = dynobj->sections; s != NULL; s = s->next)
|
{
|
{
|
const char *name;
|
const char *name;
|
|
|
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
continue;
|
continue;
|
|
|
/* It's OK to base decisions on the section name, because none
|
/* It's OK to base decisions on the section name, because none
|
of the dynobj section names depend upon the input files. */
|
of the dynobj section names depend upon the input files. */
|
name = bfd_get_section_name (dynobj, s);
|
name = bfd_get_section_name (dynobj, s);
|
|
|
if (strcmp (name, ".plt") == 0)
|
if (strcmp (name, ".plt") == 0)
|
{
|
{
|
/* Remember whether there is a PLT. */
|
/* Remember whether there is a PLT. */
|
plt = s->size != 0;
|
plt = s->size != 0;
|
}
|
}
|
else if (CONST_STRNEQ (name, ".rela"))
|
else if (CONST_STRNEQ (name, ".rela"))
|
{
|
{
|
if (s->size != 0)
|
if (s->size != 0)
|
{
|
{
|
relocs = TRUE;
|
relocs = TRUE;
|
|
|
/* We use the reloc_count field as a counter if we need
|
/* We use the reloc_count field as a counter if we need
|
to copy relocs into the output file. */
|
to copy relocs into the output file. */
|
s->reloc_count = 0;
|
s->reloc_count = 0;
|
}
|
}
|
}
|
}
|
else if (! CONST_STRNEQ (name, ".got")
|
else if (! CONST_STRNEQ (name, ".got")
|
&& strcmp (name, ".dynbss") != 0)
|
&& strcmp (name, ".dynbss") != 0)
|
{
|
{
|
/* It's not one of our sections, so don't allocate space. */
|
/* It's not one of our sections, so don't allocate space. */
|
continue;
|
continue;
|
}
|
}
|
|
|
if (s->size == 0)
|
if (s->size == 0)
|
{
|
{
|
/* If we don't need this section, strip it from the
|
/* If we don't need this section, strip it from the
|
output file. This is mostly to handle .rela.bss and
|
output file. This is mostly to handle .rela.bss and
|
.rela.plt. We must create both sections in
|
.rela.plt. We must create both sections in
|
create_dynamic_sections, because they must be created
|
create_dynamic_sections, because they must be created
|
before the linker maps input sections to output
|
before the linker maps input sections to output
|
sections. The linker does that before
|
sections. The linker does that before
|
adjust_dynamic_symbol is called, and it is that
|
adjust_dynamic_symbol is called, and it is that
|
function which decides whether anything needs to go
|
function which decides whether anything needs to go
|
into these sections. */
|
into these sections. */
|
s->flags |= SEC_EXCLUDE;
|
s->flags |= SEC_EXCLUDE;
|
continue;
|
continue;
|
}
|
}
|
|
|
if ((s->flags & SEC_HAS_CONTENTS) == 0)
|
if ((s->flags & SEC_HAS_CONTENTS) == 0)
|
continue;
|
continue;
|
|
|
/* Allocate memory for the section contents. */
|
/* Allocate memory for the section contents. */
|
/* FIXME: This should be a call to bfd_alloc not bfd_zalloc.
|
/* FIXME: This should be a call to bfd_alloc not bfd_zalloc.
|
Unused entries should be reclaimed before the section's contents
|
Unused entries should be reclaimed before the section's contents
|
are written out, but at the moment this does not happen. Thus in
|
are written out, but at the moment this does not happen. Thus in
|
order to prevent writing out garbage, we initialise the section's
|
order to prevent writing out garbage, we initialise the section's
|
contents to zero. */
|
contents to zero. */
|
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
|
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
|
if (s->contents == NULL)
|
if (s->contents == NULL)
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
if (elf_hash_table (info)->dynamic_sections_created)
|
{
|
{
|
/* Add some entries to the .dynamic section. We fill in the
|
/* Add some entries to the .dynamic section. We fill in the
|
values later, in elf_m68k_finish_dynamic_sections, but we
|
values later, in elf_m68k_finish_dynamic_sections, but we
|
must add the entries now so that we get the correct size for
|
must add the entries now so that we get the correct size for
|
the .dynamic section. The DT_DEBUG entry is filled in by the
|
the .dynamic section. The DT_DEBUG entry is filled in by the
|
dynamic linker and used by the debugger. */
|
dynamic linker and used by the debugger. */
|
#define add_dynamic_entry(TAG, VAL) \
|
#define add_dynamic_entry(TAG, VAL) \
|
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
|
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
|
|
|
if (!info->shared)
|
if (!info->shared)
|
{
|
{
|
if (!add_dynamic_entry (DT_DEBUG, 0))
|
if (!add_dynamic_entry (DT_DEBUG, 0))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (plt)
|
if (plt)
|
{
|
{
|
if (!add_dynamic_entry (DT_PLTGOT, 0)
|
if (!add_dynamic_entry (DT_PLTGOT, 0)
|
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|
|| !add_dynamic_entry (DT_PLTREL, DT_RELA)
|
|| !add_dynamic_entry (DT_PLTREL, DT_RELA)
|
|| !add_dynamic_entry (DT_JMPREL, 0))
|
|| !add_dynamic_entry (DT_JMPREL, 0))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (relocs)
|
if (relocs)
|
{
|
{
|
if (!add_dynamic_entry (DT_RELA, 0)
|
if (!add_dynamic_entry (DT_RELA, 0)
|
|| !add_dynamic_entry (DT_RELASZ, 0)
|
|| !add_dynamic_entry (DT_RELASZ, 0)
|
|| !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
|
|| !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if ((info->flags & DF_TEXTREL) != 0)
|
if ((info->flags & DF_TEXTREL) != 0)
|
{
|
{
|
if (!add_dynamic_entry (DT_TEXTREL, 0))
|
if (!add_dynamic_entry (DT_TEXTREL, 0))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
#undef add_dynamic_entry
|
#undef add_dynamic_entry
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* This function is called via elf_link_hash_traverse if we are
|
/* This function is called via elf_link_hash_traverse if we are
|
creating a shared object. In the -Bsymbolic case it discards the
|
creating a shared object. In the -Bsymbolic case it discards the
|
space allocated to copy PC relative relocs against symbols which
|
space allocated to copy PC relative relocs against symbols which
|
are defined in regular objects. For the normal shared case, it
|
are defined in regular objects. For the normal shared case, it
|
discards space for pc-relative relocs that have become local due to
|
discards space for pc-relative relocs that have become local due to
|
symbol visibility changes. We allocated space for them in the
|
symbol visibility changes. We allocated space for them in the
|
check_relocs routine, but we won't fill them in in the
|
check_relocs routine, but we won't fill them in in the
|
relocate_section routine.
|
relocate_section routine.
|
|
|
We also check whether any of the remaining relocations apply
|
We also check whether any of the remaining relocations apply
|
against a readonly section, and set the DF_TEXTREL flag in this
|
against a readonly section, and set the DF_TEXTREL flag in this
|
case. */
|
case. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_m68k_discard_copies (h, inf)
|
elf_m68k_discard_copies (h, inf)
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
PTR inf;
|
PTR inf;
|
{
|
{
|
struct bfd_link_info *info = (struct bfd_link_info *) inf;
|
struct bfd_link_info *info = (struct bfd_link_info *) inf;
|
struct elf_m68k_pcrel_relocs_copied *s;
|
struct elf_m68k_pcrel_relocs_copied *s;
|
|
|
if (h->root.type == bfd_link_hash_warning)
|
if (h->root.type == bfd_link_hash_warning)
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
|
|
if (!h->def_regular
|
if (!h->def_regular
|
|| (!info->symbolic
|
|| (!info->symbolic
|
&& !h->forced_local))
|
&& !h->forced_local))
|
{
|
{
|
if ((info->flags & DF_TEXTREL) == 0)
|
if ((info->flags & DF_TEXTREL) == 0)
|
{
|
{
|
/* Look for relocations against read-only sections. */
|
/* Look for relocations against read-only sections. */
|
for (s = elf_m68k_hash_entry (h)->pcrel_relocs_copied;
|
for (s = elf_m68k_hash_entry (h)->pcrel_relocs_copied;
|
s != NULL;
|
s != NULL;
|
s = s->next)
|
s = s->next)
|
if ((s->section->flags & SEC_READONLY) != 0)
|
if ((s->section->flags & SEC_READONLY) != 0)
|
{
|
{
|
info->flags |= DF_TEXTREL;
|
info->flags |= DF_TEXTREL;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
for (s = elf_m68k_hash_entry (h)->pcrel_relocs_copied;
|
for (s = elf_m68k_hash_entry (h)->pcrel_relocs_copied;
|
s != NULL;
|
s != NULL;
|
s = s->next)
|
s = s->next)
|
s->section->size -= s->count * sizeof (Elf32_External_Rela);
|
s->section->size -= s->count * sizeof (Elf32_External_Rela);
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Relocate an M68K ELF section. */
|
/* Relocate an M68K ELF section. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_m68k_relocate_section (output_bfd, info, input_bfd, input_section,
|
elf_m68k_relocate_section (output_bfd, info, input_bfd, input_section,
|
contents, relocs, local_syms, local_sections)
|
contents, relocs, local_syms, local_sections)
|
bfd *output_bfd;
|
bfd *output_bfd;
|
struct bfd_link_info *info;
|
struct bfd_link_info *info;
|
bfd *input_bfd;
|
bfd *input_bfd;
|
asection *input_section;
|
asection *input_section;
|
bfd_byte *contents;
|
bfd_byte *contents;
|
Elf_Internal_Rela *relocs;
|
Elf_Internal_Rela *relocs;
|
Elf_Internal_Sym *local_syms;
|
Elf_Internal_Sym *local_syms;
|
asection **local_sections;
|
asection **local_sections;
|
{
|
{
|
bfd *dynobj;
|
bfd *dynobj;
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
struct elf_link_hash_entry **sym_hashes;
|
struct elf_link_hash_entry **sym_hashes;
|
bfd_vma *local_got_offsets;
|
bfd_vma *local_got_offsets;
|
asection *sgot;
|
asection *sgot;
|
asection *splt;
|
asection *splt;
|
asection *sreloc;
|
asection *sreloc;
|
Elf_Internal_Rela *rel;
|
Elf_Internal_Rela *rel;
|
Elf_Internal_Rela *relend;
|
Elf_Internal_Rela *relend;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
sym_hashes = elf_sym_hashes (input_bfd);
|
sym_hashes = elf_sym_hashes (input_bfd);
|
local_got_offsets = elf_local_got_offsets (input_bfd);
|
local_got_offsets = elf_local_got_offsets (input_bfd);
|
|
|
sgot = NULL;
|
sgot = NULL;
|
splt = NULL;
|
splt = NULL;
|
sreloc = NULL;
|
sreloc = NULL;
|
|
|
rel = relocs;
|
rel = relocs;
|
relend = relocs + input_section->reloc_count;
|
relend = relocs + input_section->reloc_count;
|
for (; rel < relend; rel++)
|
for (; rel < relend; rel++)
|
{
|
{
|
int r_type;
|
int r_type;
|
reloc_howto_type *howto;
|
reloc_howto_type *howto;
|
unsigned long r_symndx;
|
unsigned long r_symndx;
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
Elf_Internal_Sym *sym;
|
Elf_Internal_Sym *sym;
|
asection *sec;
|
asection *sec;
|
bfd_vma relocation;
|
bfd_vma relocation;
|
bfd_boolean unresolved_reloc;
|
bfd_boolean unresolved_reloc;
|
bfd_reloc_status_type r;
|
bfd_reloc_status_type r;
|
|
|
r_type = ELF32_R_TYPE (rel->r_info);
|
r_type = ELF32_R_TYPE (rel->r_info);
|
if (r_type < 0 || r_type >= (int) R_68K_max)
|
if (r_type < 0 || r_type >= (int) R_68K_max)
|
{
|
{
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
howto = howto_table + r_type;
|
howto = howto_table + r_type;
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
|
|
h = NULL;
|
h = NULL;
|
sym = NULL;
|
sym = NULL;
|
sec = NULL;
|
sec = NULL;
|
unresolved_reloc = FALSE;
|
unresolved_reloc = FALSE;
|
|
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
{
|
{
|
sym = local_syms + r_symndx;
|
sym = local_syms + r_symndx;
|
sec = local_sections[r_symndx];
|
sec = local_sections[r_symndx];
|
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_boolean warned;
|
bfd_boolean warned;
|
|
|
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
r_symndx, symtab_hdr, sym_hashes,
|
r_symndx, symtab_hdr, sym_hashes,
|
h, sec, relocation,
|
h, sec, relocation,
|
unresolved_reloc, warned);
|
unresolved_reloc, warned);
|
}
|
}
|
|
|
if (sec != NULL && elf_discarded_section (sec))
|
if (sec != NULL && elf_discarded_section (sec))
|
{
|
{
|
/* For relocs against symbols from removed linkonce sections,
|
/* For relocs against symbols from removed linkonce sections,
|
or sections discarded by a linker script, we just want the
|
or sections discarded by a linker script, we just want the
|
section contents zeroed. Avoid any special processing. */
|
section contents zeroed. Avoid any special processing. */
|
_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
|
_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
|
rel->r_info = 0;
|
rel->r_info = 0;
|
rel->r_addend = 0;
|
rel->r_addend = 0;
|
continue;
|
continue;
|
}
|
}
|
|
|
if (info->relocatable)
|
if (info->relocatable)
|
continue;
|
continue;
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case R_68K_GOT8:
|
case R_68K_GOT8:
|
case R_68K_GOT16:
|
case R_68K_GOT16:
|
case R_68K_GOT32:
|
case R_68K_GOT32:
|
/* Relocation is to the address of the entry for this symbol
|
/* Relocation is to the address of the entry for this symbol
|
in the global offset table. */
|
in the global offset table. */
|
if (h != NULL
|
if (h != NULL
|
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
break;
|
break;
|
/* Fall through. */
|
/* Fall through. */
|
case R_68K_GOT8O:
|
case R_68K_GOT8O:
|
case R_68K_GOT16O:
|
case R_68K_GOT16O:
|
case R_68K_GOT32O:
|
case R_68K_GOT32O:
|
/* Relocation is the offset of the entry for this symbol in
|
/* Relocation is the offset of the entry for this symbol in
|
the global offset table. */
|
the global offset table. */
|
|
|
{
|
{
|
bfd_vma off;
|
bfd_vma off;
|
|
|
if (sgot == NULL)
|
if (sgot == NULL)
|
{
|
{
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
BFD_ASSERT (sgot != NULL);
|
BFD_ASSERT (sgot != NULL);
|
}
|
}
|
|
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
bfd_boolean dyn;
|
bfd_boolean dyn;
|
|
|
off = h->got.offset;
|
off = h->got.offset;
|
BFD_ASSERT (off != (bfd_vma) -1);
|
BFD_ASSERT (off != (bfd_vma) -1);
|
|
|
dyn = elf_hash_table (info)->dynamic_sections_created;
|
dyn = elf_hash_table (info)->dynamic_sections_created;
|
if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
|
if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
|
|| (info->shared
|
|| (info->shared
|
&& (info->symbolic
|
&& (info->symbolic
|
|| h->dynindx == -1
|
|| h->dynindx == -1
|
|| h->forced_local)
|
|| h->forced_local)
|
&& h->def_regular))
|
&& h->def_regular))
|
{
|
{
|
/* This is actually a static link, or it is a
|
/* This is actually a static link, or it is a
|
-Bsymbolic link and the symbol is defined
|
-Bsymbolic link and the symbol is defined
|
locally, or the symbol was forced to be local
|
locally, or the symbol was forced to be local
|
because of a version file.. We must initialize
|
because of a version file.. We must initialize
|
this entry in the global offset table. Since
|
this entry in the global offset table. Since
|
the offset must always be a multiple of 4, we
|
the offset must always be a multiple of 4, we
|
use the least significant bit to record whether
|
use the least significant bit to record whether
|
we have initialized it already.
|
we have initialized it already.
|
|
|
When doing a dynamic link, we create a .rela.got
|
When doing a dynamic link, we create a .rela.got
|
relocation entry to initialize the value. This
|
relocation entry to initialize the value. This
|
is done in the finish_dynamic_symbol routine. */
|
is done in the finish_dynamic_symbol routine. */
|
if ((off & 1) != 0)
|
if ((off & 1) != 0)
|
off &= ~1;
|
off &= ~1;
|
else
|
else
|
{
|
{
|
bfd_put_32 (output_bfd, relocation,
|
bfd_put_32 (output_bfd, relocation,
|
sgot->contents + off);
|
sgot->contents + off);
|
h->got.offset |= 1;
|
h->got.offset |= 1;
|
}
|
}
|
}
|
}
|
else
|
else
|
unresolved_reloc = FALSE;
|
unresolved_reloc = FALSE;
|
}
|
}
|
else
|
else
|
{
|
{
|
BFD_ASSERT (local_got_offsets != NULL
|
BFD_ASSERT (local_got_offsets != NULL
|
&& local_got_offsets[r_symndx] != (bfd_vma) -1);
|
&& local_got_offsets[r_symndx] != (bfd_vma) -1);
|
|
|
off = local_got_offsets[r_symndx];
|
off = local_got_offsets[r_symndx];
|
|
|
/* The offset must always be a multiple of 4. We use
|
/* The offset must always be a multiple of 4. We use
|
the least significant bit to record whether we have
|
the least significant bit to record whether we have
|
already generated the necessary reloc. */
|
already generated the necessary reloc. */
|
if ((off & 1) != 0)
|
if ((off & 1) != 0)
|
off &= ~1;
|
off &= ~1;
|
else
|
else
|
{
|
{
|
bfd_put_32 (output_bfd, relocation, sgot->contents + off);
|
bfd_put_32 (output_bfd, relocation, sgot->contents + off);
|
|
|
if (info->shared)
|
if (info->shared)
|
{
|
{
|
asection *s;
|
asection *s;
|
Elf_Internal_Rela outrel;
|
Elf_Internal_Rela outrel;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
|
|
s = bfd_get_section_by_name (dynobj, ".rela.got");
|
s = bfd_get_section_by_name (dynobj, ".rela.got");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
|
|
outrel.r_offset = (sgot->output_section->vma
|
outrel.r_offset = (sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ off);
|
+ off);
|
outrel.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
|
outrel.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
|
outrel.r_addend = relocation;
|
outrel.r_addend = relocation;
|
loc = s->contents;
|
loc = s->contents;
|
loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
|
loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
|
}
|
}
|
|
|
local_got_offsets[r_symndx] |= 1;
|
local_got_offsets[r_symndx] |= 1;
|
}
|
}
|
}
|
}
|
|
|
relocation = sgot->output_offset + off;
|
relocation = sgot->output_offset + off;
|
if (r_type == R_68K_GOT8O
|
if (r_type == R_68K_GOT8O
|
|| r_type == R_68K_GOT16O
|
|| r_type == R_68K_GOT16O
|
|| r_type == R_68K_GOT32O)
|
|| r_type == R_68K_GOT32O)
|
{
|
{
|
/* This relocation does not use the addend. */
|
/* This relocation does not use the addend. */
|
rel->r_addend = 0;
|
rel->r_addend = 0;
|
}
|
}
|
else
|
else
|
relocation += sgot->output_section->vma;
|
relocation += sgot->output_section->vma;
|
}
|
}
|
break;
|
break;
|
|
|
case R_68K_PLT8:
|
case R_68K_PLT8:
|
case R_68K_PLT16:
|
case R_68K_PLT16:
|
case R_68K_PLT32:
|
case R_68K_PLT32:
|
/* Relocation is to the entry for this symbol in the
|
/* Relocation is to the entry for this symbol in the
|
procedure linkage table. */
|
procedure linkage table. */
|
|
|
/* Resolve a PLTxx reloc against a local symbol directly,
|
/* Resolve a PLTxx reloc against a local symbol directly,
|
without using the procedure linkage table. */
|
without using the procedure linkage table. */
|
if (h == NULL)
|
if (h == NULL)
|
break;
|
break;
|
|
|
if (h->plt.offset == (bfd_vma) -1
|
if (h->plt.offset == (bfd_vma) -1
|
|| !elf_hash_table (info)->dynamic_sections_created)
|
|| !elf_hash_table (info)->dynamic_sections_created)
|
{
|
{
|
/* We didn't make a PLT entry for this symbol. This
|
/* We didn't make a PLT entry for this symbol. This
|
happens when statically linking PIC code, or when
|
happens when statically linking PIC code, or when
|
using -Bsymbolic. */
|
using -Bsymbolic. */
|
break;
|
break;
|
}
|
}
|
|
|
if (splt == NULL)
|
if (splt == NULL)
|
{
|
{
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
BFD_ASSERT (splt != NULL);
|
BFD_ASSERT (splt != NULL);
|
}
|
}
|
|
|
relocation = (splt->output_section->vma
|
relocation = (splt->output_section->vma
|
+ splt->output_offset
|
+ splt->output_offset
|
+ h->plt.offset);
|
+ h->plt.offset);
|
unresolved_reloc = FALSE;
|
unresolved_reloc = FALSE;
|
break;
|
break;
|
|
|
case R_68K_PLT8O:
|
case R_68K_PLT8O:
|
case R_68K_PLT16O:
|
case R_68K_PLT16O:
|
case R_68K_PLT32O:
|
case R_68K_PLT32O:
|
/* Relocation is the offset of the entry for this symbol in
|
/* Relocation is the offset of the entry for this symbol in
|
the procedure linkage table. */
|
the procedure linkage table. */
|
BFD_ASSERT (h != NULL && h->plt.offset != (bfd_vma) -1);
|
BFD_ASSERT (h != NULL && h->plt.offset != (bfd_vma) -1);
|
|
|
if (splt == NULL)
|
if (splt == NULL)
|
{
|
{
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
BFD_ASSERT (splt != NULL);
|
BFD_ASSERT (splt != NULL);
|
}
|
}
|
|
|
relocation = h->plt.offset;
|
relocation = h->plt.offset;
|
unresolved_reloc = FALSE;
|
unresolved_reloc = FALSE;
|
|
|
/* This relocation does not use the addend. */
|
/* This relocation does not use the addend. */
|
rel->r_addend = 0;
|
rel->r_addend = 0;
|
|
|
break;
|
break;
|
|
|
case R_68K_PC8:
|
case R_68K_PC8:
|
case R_68K_PC16:
|
case R_68K_PC16:
|
case R_68K_PC32:
|
case R_68K_PC32:
|
if (h == NULL
|
if (h == NULL
|
|| (info->shared
|
|| (info->shared
|
&& h->forced_local))
|
&& h->forced_local))
|
break;
|
break;
|
/* Fall through. */
|
/* Fall through. */
|
case R_68K_8:
|
case R_68K_8:
|
case R_68K_16:
|
case R_68K_16:
|
case R_68K_32:
|
case R_68K_32:
|
if (info->shared
|
if (info->shared
|
&& r_symndx != 0
|
&& r_symndx != 0
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& (h == NULL
|
&& (h == NULL
|
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
|| h->root.type != bfd_link_hash_undefweak)
|
|| h->root.type != bfd_link_hash_undefweak)
|
&& ((r_type != R_68K_PC8
|
&& ((r_type != R_68K_PC8
|
&& r_type != R_68K_PC16
|
&& r_type != R_68K_PC16
|
&& r_type != R_68K_PC32)
|
&& r_type != R_68K_PC32)
|
|| (h != NULL
|
|| (h != NULL
|
&& h->dynindx != -1
|
&& h->dynindx != -1
|
&& (!info->symbolic
|
&& (!info->symbolic
|
|| !h->def_regular))))
|
|| !h->def_regular))))
|
{
|
{
|
Elf_Internal_Rela outrel;
|
Elf_Internal_Rela outrel;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
bfd_boolean skip, relocate;
|
bfd_boolean skip, relocate;
|
|
|
/* When generating a shared object, these relocations
|
/* When generating a shared object, these relocations
|
are copied into the output file to be resolved at run
|
are copied into the output file to be resolved at run
|
time. */
|
time. */
|
|
|
skip = FALSE;
|
skip = FALSE;
|
relocate = FALSE;
|
relocate = FALSE;
|
|
|
outrel.r_offset =
|
outrel.r_offset =
|
_bfd_elf_section_offset (output_bfd, info, input_section,
|
_bfd_elf_section_offset (output_bfd, info, input_section,
|
rel->r_offset);
|
rel->r_offset);
|
if (outrel.r_offset == (bfd_vma) -1)
|
if (outrel.r_offset == (bfd_vma) -1)
|
skip = TRUE;
|
skip = TRUE;
|
else if (outrel.r_offset == (bfd_vma) -2)
|
else if (outrel.r_offset == (bfd_vma) -2)
|
skip = TRUE, relocate = TRUE;
|
skip = TRUE, relocate = TRUE;
|
outrel.r_offset += (input_section->output_section->vma
|
outrel.r_offset += (input_section->output_section->vma
|
+ input_section->output_offset);
|
+ input_section->output_offset);
|
|
|
if (skip)
|
if (skip)
|
memset (&outrel, 0, sizeof outrel);
|
memset (&outrel, 0, sizeof outrel);
|
else if (h != NULL
|
else if (h != NULL
|
&& h->dynindx != -1
|
&& h->dynindx != -1
|
&& (r_type == R_68K_PC8
|
&& (r_type == R_68K_PC8
|
|| r_type == R_68K_PC16
|
|| r_type == R_68K_PC16
|
|| r_type == R_68K_PC32
|
|| r_type == R_68K_PC32
|
|| !info->shared
|
|| !info->shared
|
|| !info->symbolic
|
|| !info->symbolic
|
|| !h->def_regular))
|
|| !h->def_regular))
|
{
|
{
|
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
|
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
|
outrel.r_addend = rel->r_addend;
|
outrel.r_addend = rel->r_addend;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* This symbol is local, or marked to become local. */
|
/* This symbol is local, or marked to become local. */
|
outrel.r_addend = relocation + rel->r_addend;
|
outrel.r_addend = relocation + rel->r_addend;
|
|
|
if (r_type == R_68K_32)
|
if (r_type == R_68K_32)
|
{
|
{
|
relocate = TRUE;
|
relocate = TRUE;
|
outrel.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
|
outrel.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
|
}
|
}
|
else
|
else
|
{
|
{
|
long indx;
|
long indx;
|
|
|
if (bfd_is_abs_section (sec))
|
if (bfd_is_abs_section (sec))
|
indx = 0;
|
indx = 0;
|
else if (sec == NULL || sec->owner == NULL)
|
else if (sec == NULL || sec->owner == NULL)
|
{
|
{
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
else
|
else
|
{
|
{
|
asection *osec;
|
asection *osec;
|
|
|
/* We are turning this relocation into one
|
/* We are turning this relocation into one
|
against a section symbol. It would be
|
against a section symbol. It would be
|
proper to subtract the symbol's value,
|
proper to subtract the symbol's value,
|
osec->vma, from the emitted reloc addend,
|
osec->vma, from the emitted reloc addend,
|
but ld.so expects buggy relocs. */
|
but ld.so expects buggy relocs. */
|
osec = sec->output_section;
|
osec = sec->output_section;
|
indx = elf_section_data (osec)->dynindx;
|
indx = elf_section_data (osec)->dynindx;
|
if (indx == 0)
|
if (indx == 0)
|
{
|
{
|
struct elf_link_hash_table *htab;
|
struct elf_link_hash_table *htab;
|
htab = elf_hash_table (info);
|
htab = elf_hash_table (info);
|
osec = htab->text_index_section;
|
osec = htab->text_index_section;
|
indx = elf_section_data (osec)->dynindx;
|
indx = elf_section_data (osec)->dynindx;
|
}
|
}
|
BFD_ASSERT (indx != 0);
|
BFD_ASSERT (indx != 0);
|
}
|
}
|
|
|
outrel.r_info = ELF32_R_INFO (indx, r_type);
|
outrel.r_info = ELF32_R_INFO (indx, r_type);
|
}
|
}
|
}
|
}
|
|
|
sreloc = elf_section_data (input_section)->sreloc;
|
sreloc = elf_section_data (input_section)->sreloc;
|
if (sreloc == NULL)
|
if (sreloc == NULL)
|
abort ();
|
abort ();
|
|
|
loc = sreloc->contents;
|
loc = sreloc->contents;
|
loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
|
loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
|
|
|
/* This reloc will be computed at runtime, so there's no
|
/* This reloc will be computed at runtime, so there's no
|
need to do anything now, except for R_68K_32
|
need to do anything now, except for R_68K_32
|
relocations that have been turned into
|
relocations that have been turned into
|
R_68K_RELATIVE. */
|
R_68K_RELATIVE. */
|
if (!relocate)
|
if (!relocate)
|
continue;
|
continue;
|
}
|
}
|
|
|
break;
|
break;
|
|
|
case R_68K_GNU_VTINHERIT:
|
case R_68K_GNU_VTINHERIT:
|
case R_68K_GNU_VTENTRY:
|
case R_68K_GNU_VTENTRY:
|
/* These are no-ops in the end. */
|
/* These are no-ops in the end. */
|
continue;
|
continue;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
|
|
/* Dynamic relocs are not propagated for SEC_DEBUGGING sections
|
/* Dynamic relocs are not propagated for SEC_DEBUGGING sections
|
because such sections are not SEC_ALLOC and thus ld.so will
|
because such sections are not SEC_ALLOC and thus ld.so will
|
not process them. */
|
not process them. */
|
if (unresolved_reloc
|
if (unresolved_reloc
|
&& !((input_section->flags & SEC_DEBUGGING) != 0
|
&& !((input_section->flags & SEC_DEBUGGING) != 0
|
&& h->def_dynamic))
|
&& h->def_dynamic))
|
{
|
{
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
|
(_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
|
input_bfd,
|
input_bfd,
|
input_section,
|
input_section,
|
(long) rel->r_offset,
|
(long) rel->r_offset,
|
howto->name,
|
howto->name,
|
h->root.root.string);
|
h->root.root.string);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
contents, rel->r_offset,
|
contents, rel->r_offset,
|
relocation, rel->r_addend);
|
relocation, rel->r_addend);
|
|
|
if (r != bfd_reloc_ok)
|
if (r != bfd_reloc_ok)
|
{
|
{
|
const char *name;
|
const char *name;
|
|
|
if (h != NULL)
|
if (h != NULL)
|
name = h->root.root.string;
|
name = h->root.root.string;
|
else
|
else
|
{
|
{
|
name = bfd_elf_string_from_elf_section (input_bfd,
|
name = bfd_elf_string_from_elf_section (input_bfd,
|
symtab_hdr->sh_link,
|
symtab_hdr->sh_link,
|
sym->st_name);
|
sym->st_name);
|
if (name == NULL)
|
if (name == NULL)
|
return FALSE;
|
return FALSE;
|
if (*name == '\0')
|
if (*name == '\0')
|
name = bfd_section_name (input_bfd, sec);
|
name = bfd_section_name (input_bfd, sec);
|
}
|
}
|
|
|
if (r == bfd_reloc_overflow)
|
if (r == bfd_reloc_overflow)
|
{
|
{
|
if (!(info->callbacks->reloc_overflow
|
if (!(info->callbacks->reloc_overflow
|
(info, (h ? &h->root : NULL), name, howto->name,
|
(info, (h ? &h->root : NULL), name, howto->name,
|
(bfd_vma) 0, input_bfd, input_section,
|
(bfd_vma) 0, input_bfd, input_section,
|
rel->r_offset)))
|
rel->r_offset)))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
else
|
else
|
{
|
{
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B(%A+0x%lx): reloc against `%s': error %d"),
|
(_("%B(%A+0x%lx): reloc against `%s': error %d"),
|
input_bfd, input_section,
|
input_bfd, input_section,
|
(long) rel->r_offset, name, (int) r);
|
(long) rel->r_offset, name, (int) r);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Install an M_68K_PC32 relocation against VALUE at offset OFFSET
|
/* Install an M_68K_PC32 relocation against VALUE at offset OFFSET
|
into section SEC. */
|
into section SEC. */
|
|
|
static void
|
static void
|
elf_m68k_install_pc32 (asection *sec, bfd_vma offset, bfd_vma value)
|
elf_m68k_install_pc32 (asection *sec, bfd_vma offset, bfd_vma value)
|
{
|
{
|
/* Make VALUE PC-relative. */
|
/* Make VALUE PC-relative. */
|
value -= sec->output_section->vma + offset;
|
value -= sec->output_section->vma + offset;
|
|
|
/* Apply any in-place addend. */
|
/* Apply any in-place addend. */
|
value += bfd_get_32 (sec->owner, sec->contents + offset);
|
value += bfd_get_32 (sec->owner, sec->contents + offset);
|
|
|
bfd_put_32 (sec->owner, value, sec->contents + offset);
|
bfd_put_32 (sec->owner, value, sec->contents + offset);
|
}
|
}
|
|
|
/* Finish up dynamic symbol handling. We set the contents of various
|
/* Finish up dynamic symbol handling. We set the contents of various
|
dynamic sections here. */
|
dynamic sections here. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_m68k_finish_dynamic_symbol (output_bfd, info, h, sym)
|
elf_m68k_finish_dynamic_symbol (output_bfd, info, h, sym)
|
bfd *output_bfd;
|
bfd *output_bfd;
|
struct bfd_link_info *info;
|
struct bfd_link_info *info;
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
Elf_Internal_Sym *sym;
|
Elf_Internal_Sym *sym;
|
{
|
{
|
bfd *dynobj;
|
bfd *dynobj;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
if (h->plt.offset != (bfd_vma) -1)
|
if (h->plt.offset != (bfd_vma) -1)
|
{
|
{
|
const struct elf_m68k_plt_info *plt_info;
|
const struct elf_m68k_plt_info *plt_info;
|
asection *splt;
|
asection *splt;
|
asection *sgot;
|
asection *sgot;
|
asection *srela;
|
asection *srela;
|
bfd_vma plt_index;
|
bfd_vma plt_index;
|
bfd_vma got_offset;
|
bfd_vma got_offset;
|
Elf_Internal_Rela rela;
|
Elf_Internal_Rela rela;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
|
|
/* This symbol has an entry in the procedure linkage table. Set
|
/* This symbol has an entry in the procedure linkage table. Set
|
it up. */
|
it up. */
|
|
|
BFD_ASSERT (h->dynindx != -1);
|
BFD_ASSERT (h->dynindx != -1);
|
|
|
plt_info = elf_m68k_hash_table (info)->plt_info;
|
plt_info = elf_m68k_hash_table (info)->plt_info;
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
|
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
|
srela = bfd_get_section_by_name (dynobj, ".rela.plt");
|
srela = bfd_get_section_by_name (dynobj, ".rela.plt");
|
BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
|
BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
|
|
|
/* Get the index in the procedure linkage table which
|
/* Get the index in the procedure linkage table which
|
corresponds to this symbol. This is the index of this symbol
|
corresponds to this symbol. This is the index of this symbol
|
in all the symbols for which we are making plt entries. The
|
in all the symbols for which we are making plt entries. The
|
first entry in the procedure linkage table is reserved. */
|
first entry in the procedure linkage table is reserved. */
|
plt_index = (h->plt.offset / plt_info->size) - 1;
|
plt_index = (h->plt.offset / plt_info->size) - 1;
|
|
|
/* Get the offset into the .got table of the entry that
|
/* Get the offset into the .got table of the entry that
|
corresponds to this function. Each .got entry is 4 bytes.
|
corresponds to this function. Each .got entry is 4 bytes.
|
The first three are reserved. */
|
The first three are reserved. */
|
got_offset = (plt_index + 3) * 4;
|
got_offset = (plt_index + 3) * 4;
|
|
|
memcpy (splt->contents + h->plt.offset,
|
memcpy (splt->contents + h->plt.offset,
|
plt_info->symbol_entry,
|
plt_info->symbol_entry,
|
plt_info->size);
|
plt_info->size);
|
|
|
elf_m68k_install_pc32 (splt, h->plt.offset + plt_info->symbol_relocs.got,
|
elf_m68k_install_pc32 (splt, h->plt.offset + plt_info->symbol_relocs.got,
|
(sgot->output_section->vma
|
(sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ got_offset));
|
+ got_offset));
|
|
|
bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
|
bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
|
splt->contents
|
splt->contents
|
+ h->plt.offset
|
+ h->plt.offset
|
+ plt_info->symbol_resolve_entry + 2);
|
+ plt_info->symbol_resolve_entry + 2);
|
|
|
elf_m68k_install_pc32 (splt, h->plt.offset + plt_info->symbol_relocs.plt,
|
elf_m68k_install_pc32 (splt, h->plt.offset + plt_info->symbol_relocs.plt,
|
splt->output_section->vma);
|
splt->output_section->vma);
|
|
|
/* Fill in the entry in the global offset table. */
|
/* Fill in the entry in the global offset table. */
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(splt->output_section->vma
|
(splt->output_section->vma
|
+ splt->output_offset
|
+ splt->output_offset
|
+ h->plt.offset
|
+ h->plt.offset
|
+ plt_info->symbol_resolve_entry),
|
+ plt_info->symbol_resolve_entry),
|
sgot->contents + got_offset);
|
sgot->contents + got_offset);
|
|
|
/* Fill in the entry in the .rela.plt section. */
|
/* Fill in the entry in the .rela.plt section. */
|
rela.r_offset = (sgot->output_section->vma
|
rela.r_offset = (sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ got_offset);
|
+ got_offset);
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_JMP_SLOT);
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_JMP_SLOT);
|
rela.r_addend = 0;
|
rela.r_addend = 0;
|
loc = srela->contents + plt_index * sizeof (Elf32_External_Rela);
|
loc = srela->contents + plt_index * sizeof (Elf32_External_Rela);
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
|
|
if (!h->def_regular)
|
if (!h->def_regular)
|
{
|
{
|
/* Mark the symbol as undefined, rather than as defined in
|
/* Mark the symbol as undefined, rather than as defined in
|
the .plt section. Leave the value alone. */
|
the .plt section. Leave the value alone. */
|
sym->st_shndx = SHN_UNDEF;
|
sym->st_shndx = SHN_UNDEF;
|
}
|
}
|
}
|
}
|
|
|
if (h->got.offset != (bfd_vma) -1)
|
if (h->got.offset != (bfd_vma) -1)
|
{
|
{
|
asection *sgot;
|
asection *sgot;
|
asection *srela;
|
asection *srela;
|
Elf_Internal_Rela rela;
|
Elf_Internal_Rela rela;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
|
|
/* This symbol has an entry in the global offset table. Set it
|
/* This symbol has an entry in the global offset table. Set it
|
up. */
|
up. */
|
|
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
srela = bfd_get_section_by_name (dynobj, ".rela.got");
|
srela = bfd_get_section_by_name (dynobj, ".rela.got");
|
BFD_ASSERT (sgot != NULL && srela != NULL);
|
BFD_ASSERT (sgot != NULL && srela != NULL);
|
|
|
rela.r_offset = (sgot->output_section->vma
|
rela.r_offset = (sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ (h->got.offset &~ (bfd_vma) 1));
|
+ (h->got.offset &~ (bfd_vma) 1));
|
|
|
/* If this is a -Bsymbolic link, and the symbol is defined
|
/* If this is a -Bsymbolic link, and the symbol is defined
|
locally, we just want to emit a RELATIVE reloc. Likewise if
|
locally, we just want to emit a RELATIVE reloc. Likewise if
|
the symbol was forced to be local because of a version file.
|
the symbol was forced to be local because of a version file.
|
The entry in the global offset table will already have been
|
The entry in the global offset table will already have been
|
initialized in the relocate_section function. */
|
initialized in the relocate_section function. */
|
if (info->shared
|
if (info->shared
|
&& (info->symbolic
|
&& (info->symbolic
|
|| h->dynindx == -1
|
|| h->dynindx == -1
|
|| h->forced_local)
|
|| h->forced_local)
|
&& h->def_regular)
|
&& h->def_regular)
|
{
|
{
|
rela.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
|
rela.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
|
rela.r_addend = bfd_get_signed_32 (output_bfd,
|
rela.r_addend = bfd_get_signed_32 (output_bfd,
|
(sgot->contents
|
(sgot->contents
|
+ (h->got.offset &~ (bfd_vma) 1)));
|
+ (h->got.offset &~ (bfd_vma) 1)));
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_put_32 (output_bfd, (bfd_vma) 0,
|
bfd_put_32 (output_bfd, (bfd_vma) 0,
|
sgot->contents + (h->got.offset &~ (bfd_vma) 1));
|
sgot->contents + (h->got.offset &~ (bfd_vma) 1));
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_GLOB_DAT);
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_GLOB_DAT);
|
rela.r_addend = 0;
|
rela.r_addend = 0;
|
}
|
}
|
|
|
loc = srela->contents;
|
loc = srela->contents;
|
loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
|
loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
}
|
}
|
|
|
if (h->needs_copy)
|
if (h->needs_copy)
|
{
|
{
|
asection *s;
|
asection *s;
|
Elf_Internal_Rela rela;
|
Elf_Internal_Rela rela;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
|
|
/* This symbol needs a copy reloc. Set it up. */
|
/* This symbol needs a copy reloc. Set it up. */
|
|
|
BFD_ASSERT (h->dynindx != -1
|
BFD_ASSERT (h->dynindx != -1
|
&& (h->root.type == bfd_link_hash_defined
|
&& (h->root.type == bfd_link_hash_defined
|
|| h->root.type == bfd_link_hash_defweak));
|
|| h->root.type == bfd_link_hash_defweak));
|
|
|
s = bfd_get_section_by_name (h->root.u.def.section->owner,
|
s = bfd_get_section_by_name (h->root.u.def.section->owner,
|
".rela.bss");
|
".rela.bss");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
|
|
rela.r_offset = (h->root.u.def.value
|
rela.r_offset = (h->root.u.def.value
|
+ h->root.u.def.section->output_section->vma
|
+ h->root.u.def.section->output_section->vma
|
+ h->root.u.def.section->output_offset);
|
+ h->root.u.def.section->output_offset);
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_COPY);
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_68K_COPY);
|
rela.r_addend = 0;
|
rela.r_addend = 0;
|
loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
|
loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
}
|
}
|
|
|
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
|
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
|
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|
|| h == elf_hash_table (info)->hgot)
|
|| h == elf_hash_table (info)->hgot)
|
sym->st_shndx = SHN_ABS;
|
sym->st_shndx = SHN_ABS;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Finish up the dynamic sections. */
|
/* Finish up the dynamic sections. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_m68k_finish_dynamic_sections (output_bfd, info)
|
elf_m68k_finish_dynamic_sections (output_bfd, info)
|
bfd *output_bfd;
|
bfd *output_bfd;
|
struct bfd_link_info *info;
|
struct bfd_link_info *info;
|
{
|
{
|
bfd *dynobj;
|
bfd *dynobj;
|
asection *sgot;
|
asection *sgot;
|
asection *sdyn;
|
asection *sdyn;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
|
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
|
BFD_ASSERT (sgot != NULL);
|
BFD_ASSERT (sgot != NULL);
|
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
|
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
if (elf_hash_table (info)->dynamic_sections_created)
|
{
|
{
|
asection *splt;
|
asection *splt;
|
Elf32_External_Dyn *dyncon, *dynconend;
|
Elf32_External_Dyn *dyncon, *dynconend;
|
|
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
BFD_ASSERT (splt != NULL && sdyn != NULL);
|
BFD_ASSERT (splt != NULL && sdyn != NULL);
|
|
|
dyncon = (Elf32_External_Dyn *) sdyn->contents;
|
dyncon = (Elf32_External_Dyn *) sdyn->contents;
|
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
|
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
|
for (; dyncon < dynconend; dyncon++)
|
for (; dyncon < dynconend; dyncon++)
|
{
|
{
|
Elf_Internal_Dyn dyn;
|
Elf_Internal_Dyn dyn;
|
const char *name;
|
const char *name;
|
asection *s;
|
asection *s;
|
|
|
bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
|
bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
|
|
|
switch (dyn.d_tag)
|
switch (dyn.d_tag)
|
{
|
{
|
default:
|
default:
|
break;
|
break;
|
|
|
case DT_PLTGOT:
|
case DT_PLTGOT:
|
name = ".got";
|
name = ".got";
|
goto get_vma;
|
goto get_vma;
|
case DT_JMPREL:
|
case DT_JMPREL:
|
name = ".rela.plt";
|
name = ".rela.plt";
|
get_vma:
|
get_vma:
|
s = bfd_get_section_by_name (output_bfd, name);
|
s = bfd_get_section_by_name (output_bfd, name);
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
dyn.d_un.d_ptr = s->vma;
|
dyn.d_un.d_ptr = s->vma;
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
break;
|
break;
|
|
|
case DT_PLTRELSZ:
|
case DT_PLTRELSZ:
|
s = bfd_get_section_by_name (output_bfd, ".rela.plt");
|
s = bfd_get_section_by_name (output_bfd, ".rela.plt");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
dyn.d_un.d_val = s->size;
|
dyn.d_un.d_val = s->size;
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
break;
|
break;
|
|
|
case DT_RELASZ:
|
case DT_RELASZ:
|
/* The procedure linkage table relocs (DT_JMPREL) should
|
/* The procedure linkage table relocs (DT_JMPREL) should
|
not be included in the overall relocs (DT_RELA).
|
not be included in the overall relocs (DT_RELA).
|
Therefore, we override the DT_RELASZ entry here to
|
Therefore, we override the DT_RELASZ entry here to
|
make it not include the JMPREL relocs. Since the
|
make it not include the JMPREL relocs. Since the
|
linker script arranges for .rela.plt to follow all
|
linker script arranges for .rela.plt to follow all
|
other relocation sections, we don't have to worry
|
other relocation sections, we don't have to worry
|
about changing the DT_RELA entry. */
|
about changing the DT_RELA entry. */
|
s = bfd_get_section_by_name (output_bfd, ".rela.plt");
|
s = bfd_get_section_by_name (output_bfd, ".rela.plt");
|
if (s != NULL)
|
if (s != NULL)
|
dyn.d_un.d_val -= s->size;
|
dyn.d_un.d_val -= s->size;
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Fill in the first entry in the procedure linkage table. */
|
/* Fill in the first entry in the procedure linkage table. */
|
if (splt->size > 0)
|
if (splt->size > 0)
|
{
|
{
|
const struct elf_m68k_plt_info *plt_info;
|
const struct elf_m68k_plt_info *plt_info;
|
|
|
plt_info = elf_m68k_hash_table (info)->plt_info;
|
plt_info = elf_m68k_hash_table (info)->plt_info;
|
memcpy (splt->contents, plt_info->plt0_entry, plt_info->size);
|
memcpy (splt->contents, plt_info->plt0_entry, plt_info->size);
|
|
|
elf_m68k_install_pc32 (splt, plt_info->plt0_relocs.got4,
|
elf_m68k_install_pc32 (splt, plt_info->plt0_relocs.got4,
|
(sgot->output_section->vma
|
(sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ 4));
|
+ 4));
|
|
|
elf_m68k_install_pc32 (splt, plt_info->plt0_relocs.got8,
|
elf_m68k_install_pc32 (splt, plt_info->plt0_relocs.got8,
|
(sgot->output_section->vma
|
(sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ 8));
|
+ 8));
|
|
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize
|
= plt_info->size;
|
= plt_info->size;
|
}
|
}
|
}
|
}
|
|
|
/* Fill in the first three entries in the global offset table. */
|
/* Fill in the first three entries in the global offset table. */
|
if (sgot->size > 0)
|
if (sgot->size > 0)
|
{
|
{
|
if (sdyn == NULL)
|
if (sdyn == NULL)
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
|
else
|
else
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
sdyn->output_section->vma + sdyn->output_offset,
|
sdyn->output_section->vma + sdyn->output_offset,
|
sgot->contents);
|
sgot->contents);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
|
}
|
}
|
|
|
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
|
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Given a .data section and a .emreloc in-memory section, store
|
/* Given a .data section and a .emreloc in-memory section, store
|
relocation information into the .emreloc section which can be
|
relocation information into the .emreloc section which can be
|
used at runtime to relocate the section. This is called by the
|
used at runtime to relocate the section. This is called by the
|
linker when the --embedded-relocs switch is used. This is called
|
linker when the --embedded-relocs switch is used. This is called
|
after the add_symbols entry point has been called for all the
|
after the add_symbols entry point has been called for all the
|
objects, and before the final_link entry point is called. */
|
objects, and before the final_link entry point is called. */
|
|
|
bfd_boolean
|
bfd_boolean
|
bfd_m68k_elf32_create_embedded_relocs (abfd, info, datasec, relsec, errmsg)
|
bfd_m68k_elf32_create_embedded_relocs (abfd, info, datasec, relsec, errmsg)
|
bfd *abfd;
|
bfd *abfd;
|
struct bfd_link_info *info;
|
struct bfd_link_info *info;
|
asection *datasec;
|
asection *datasec;
|
asection *relsec;
|
asection *relsec;
|
char **errmsg;
|
char **errmsg;
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Sym *isymbuf = NULL;
|
Elf_Internal_Sym *isymbuf = NULL;
|
Elf_Internal_Rela *internal_relocs = NULL;
|
Elf_Internal_Rela *internal_relocs = NULL;
|
Elf_Internal_Rela *irel, *irelend;
|
Elf_Internal_Rela *irel, *irelend;
|
bfd_byte *p;
|
bfd_byte *p;
|
bfd_size_type amt;
|
bfd_size_type amt;
|
|
|
BFD_ASSERT (! info->relocatable);
|
BFD_ASSERT (! info->relocatable);
|
|
|
*errmsg = NULL;
|
*errmsg = NULL;
|
|
|
if (datasec->reloc_count == 0)
|
if (datasec->reloc_count == 0)
|
return TRUE;
|
return TRUE;
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
|
|
/* Get a copy of the native relocations. */
|
/* Get a copy of the native relocations. */
|
internal_relocs = (_bfd_elf_link_read_relocs
|
internal_relocs = (_bfd_elf_link_read_relocs
|
(abfd, datasec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
|
(abfd, datasec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
|
info->keep_memory));
|
info->keep_memory));
|
if (internal_relocs == NULL)
|
if (internal_relocs == NULL)
|
goto error_return;
|
goto error_return;
|
|
|
amt = (bfd_size_type) datasec->reloc_count * 12;
|
amt = (bfd_size_type) datasec->reloc_count * 12;
|
relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
|
relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt);
|
if (relsec->contents == NULL)
|
if (relsec->contents == NULL)
|
goto error_return;
|
goto error_return;
|
|
|
p = relsec->contents;
|
p = relsec->contents;
|
|
|
irelend = internal_relocs + datasec->reloc_count;
|
irelend = internal_relocs + datasec->reloc_count;
|
for (irel = internal_relocs; irel < irelend; irel++, p += 12)
|
for (irel = internal_relocs; irel < irelend; irel++, p += 12)
|
{
|
{
|
asection *targetsec;
|
asection *targetsec;
|
|
|
/* We are going to write a four byte longword into the runtime
|
/* We are going to write a four byte longword into the runtime
|
reloc section. The longword will be the address in the data
|
reloc section. The longword will be the address in the data
|
section which must be relocated. It is followed by the name
|
section which must be relocated. It is followed by the name
|
of the target section NUL-padded or truncated to 8
|
of the target section NUL-padded or truncated to 8
|
characters. */
|
characters. */
|
|
|
/* We can only relocate absolute longword relocs at run time. */
|
/* We can only relocate absolute longword relocs at run time. */
|
if (ELF32_R_TYPE (irel->r_info) != (int) R_68K_32)
|
if (ELF32_R_TYPE (irel->r_info) != (int) R_68K_32)
|
{
|
{
|
*errmsg = _("unsupported reloc type");
|
*errmsg = _("unsupported reloc type");
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
/* Get the target section referred to by the reloc. */
|
/* Get the target section referred to by the reloc. */
|
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
|
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
|
{
|
{
|
/* A local symbol. */
|
/* A local symbol. */
|
Elf_Internal_Sym *isym;
|
Elf_Internal_Sym *isym;
|
|
|
/* Read this BFD's local symbols if we haven't done so already. */
|
/* Read this BFD's local symbols if we haven't done so already. */
|
if (isymbuf == NULL)
|
if (isymbuf == NULL)
|
{
|
{
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
|
if (isymbuf == NULL)
|
if (isymbuf == NULL)
|
isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
|
isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
|
symtab_hdr->sh_info, 0,
|
symtab_hdr->sh_info, 0,
|
NULL, NULL, NULL);
|
NULL, NULL, NULL);
|
if (isymbuf == NULL)
|
if (isymbuf == NULL)
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
isym = isymbuf + ELF32_R_SYM (irel->r_info);
|
isym = isymbuf + ELF32_R_SYM (irel->r_info);
|
targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
|
targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
|
}
|
}
|
else
|
else
|
{
|
{
|
unsigned long indx;
|
unsigned long indx;
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
|
|
/* An external symbol. */
|
/* An external symbol. */
|
indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
|
indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
|
h = elf_sym_hashes (abfd)[indx];
|
h = elf_sym_hashes (abfd)[indx];
|
BFD_ASSERT (h != NULL);
|
BFD_ASSERT (h != NULL);
|
if (h->root.type == bfd_link_hash_defined
|
if (h->root.type == bfd_link_hash_defined
|
|| h->root.type == bfd_link_hash_defweak)
|
|| h->root.type == bfd_link_hash_defweak)
|
targetsec = h->root.u.def.section;
|
targetsec = h->root.u.def.section;
|
else
|
else
|
targetsec = NULL;
|
targetsec = NULL;
|
}
|
}
|
|
|
bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p);
|
bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p);
|
memset (p + 4, 0, 8);
|
memset (p + 4, 0, 8);
|
if (targetsec != NULL)
|
if (targetsec != NULL)
|
strncpy ((char *) p + 4, targetsec->output_section->name, 8);
|
strncpy ((char *) p + 4, targetsec->output_section->name, 8);
|
}
|
}
|
|
|
if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
|
if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
|
free (isymbuf);
|
free (isymbuf);
|
if (internal_relocs != NULL
|
if (internal_relocs != NULL
|
&& elf_section_data (datasec)->relocs != internal_relocs)
|
&& elf_section_data (datasec)->relocs != internal_relocs)
|
free (internal_relocs);
|
free (internal_relocs);
|
return TRUE;
|
return TRUE;
|
|
|
error_return:
|
error_return:
|
if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
|
if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf)
|
free (isymbuf);
|
free (isymbuf);
|
if (internal_relocs != NULL
|
if (internal_relocs != NULL
|
&& elf_section_data (datasec)->relocs != internal_relocs)
|
&& elf_section_data (datasec)->relocs != internal_relocs)
|
free (internal_relocs);
|
free (internal_relocs);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
static enum elf_reloc_type_class
|
static enum elf_reloc_type_class
|
elf32_m68k_reloc_type_class (rela)
|
elf32_m68k_reloc_type_class (rela)
|
const Elf_Internal_Rela *rela;
|
const Elf_Internal_Rela *rela;
|
{
|
{
|
switch ((int) ELF32_R_TYPE (rela->r_info))
|
switch ((int) ELF32_R_TYPE (rela->r_info))
|
{
|
{
|
case R_68K_RELATIVE:
|
case R_68K_RELATIVE:
|
return reloc_class_relative;
|
return reloc_class_relative;
|
case R_68K_JMP_SLOT:
|
case R_68K_JMP_SLOT:
|
return reloc_class_plt;
|
return reloc_class_plt;
|
case R_68K_COPY:
|
case R_68K_COPY:
|
return reloc_class_copy;
|
return reloc_class_copy;
|
default:
|
default:
|
return reloc_class_normal;
|
return reloc_class_normal;
|
}
|
}
|
}
|
}
|
|
|
/* Return address for Ith PLT stub in section PLT, for relocation REL
|
/* Return address for Ith PLT stub in section PLT, for relocation REL
|
or (bfd_vma) -1 if it should not be included. */
|
or (bfd_vma) -1 if it should not be included. */
|
|
|
static bfd_vma
|
static bfd_vma
|
elf_m68k_plt_sym_val (bfd_vma i, const asection *plt,
|
elf_m68k_plt_sym_val (bfd_vma i, const asection *plt,
|
const arelent *rel ATTRIBUTE_UNUSED)
|
const arelent *rel ATTRIBUTE_UNUSED)
|
{
|
{
|
return plt->vma + (i + 1) * elf_m68k_get_plt_info (plt->owner)->size;
|
return plt->vma + (i + 1) * elf_m68k_get_plt_info (plt->owner)->size;
|
}
|
}
|
|
|
#define TARGET_BIG_SYM bfd_elf32_m68k_vec
|
#define TARGET_BIG_SYM bfd_elf32_m68k_vec
|
#define TARGET_BIG_NAME "elf32-m68k"
|
#define TARGET_BIG_NAME "elf32-m68k"
|
#define ELF_MACHINE_CODE EM_68K
|
#define ELF_MACHINE_CODE EM_68K
|
#define ELF_MAXPAGESIZE 0x2000
|
#define ELF_MAXPAGESIZE 0x2000
|
#define elf_backend_create_dynamic_sections \
|
#define elf_backend_create_dynamic_sections \
|
_bfd_elf_create_dynamic_sections
|
_bfd_elf_create_dynamic_sections
|
#define bfd_elf32_bfd_link_hash_table_create \
|
#define bfd_elf32_bfd_link_hash_table_create \
|
elf_m68k_link_hash_table_create
|
elf_m68k_link_hash_table_create
|
#define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link
|
#define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link
|
|
|
#define elf_backend_check_relocs elf_m68k_check_relocs
|
#define elf_backend_check_relocs elf_m68k_check_relocs
|
#define elf_backend_always_size_sections \
|
#define elf_backend_always_size_sections \
|
elf_m68k_always_size_sections
|
elf_m68k_always_size_sections
|
#define elf_backend_adjust_dynamic_symbol \
|
#define elf_backend_adjust_dynamic_symbol \
|
elf_m68k_adjust_dynamic_symbol
|
elf_m68k_adjust_dynamic_symbol
|
#define elf_backend_size_dynamic_sections \
|
#define elf_backend_size_dynamic_sections \
|
elf_m68k_size_dynamic_sections
|
elf_m68k_size_dynamic_sections
|
#define elf_backend_init_index_section _bfd_elf_init_1_index_section
|
#define elf_backend_init_index_section _bfd_elf_init_1_index_section
|
#define elf_backend_relocate_section elf_m68k_relocate_section
|
#define elf_backend_relocate_section elf_m68k_relocate_section
|
#define elf_backend_finish_dynamic_symbol \
|
#define elf_backend_finish_dynamic_symbol \
|
elf_m68k_finish_dynamic_symbol
|
elf_m68k_finish_dynamic_symbol
|
#define elf_backend_finish_dynamic_sections \
|
#define elf_backend_finish_dynamic_sections \
|
elf_m68k_finish_dynamic_sections
|
elf_m68k_finish_dynamic_sections
|
#define elf_backend_gc_mark_hook elf_m68k_gc_mark_hook
|
#define elf_backend_gc_mark_hook elf_m68k_gc_mark_hook
|
#define elf_backend_gc_sweep_hook elf_m68k_gc_sweep_hook
|
#define elf_backend_gc_sweep_hook elf_m68k_gc_sweep_hook
|
#define bfd_elf32_bfd_merge_private_bfd_data \
|
#define bfd_elf32_bfd_merge_private_bfd_data \
|
elf32_m68k_merge_private_bfd_data
|
elf32_m68k_merge_private_bfd_data
|
#define bfd_elf32_bfd_set_private_flags \
|
#define bfd_elf32_bfd_set_private_flags \
|
elf32_m68k_set_private_flags
|
elf32_m68k_set_private_flags
|
#define bfd_elf32_bfd_print_private_bfd_data \
|
#define bfd_elf32_bfd_print_private_bfd_data \
|
elf32_m68k_print_private_bfd_data
|
elf32_m68k_print_private_bfd_data
|
#define elf_backend_reloc_type_class elf32_m68k_reloc_type_class
|
#define elf_backend_reloc_type_class elf32_m68k_reloc_type_class
|
#define elf_backend_plt_sym_val elf_m68k_plt_sym_val
|
#define elf_backend_plt_sym_val elf_m68k_plt_sym_val
|
#define elf_backend_object_p elf32_m68k_object_p
|
#define elf_backend_object_p elf32_m68k_object_p
|
|
|
#define elf_backend_can_gc_sections 1
|
#define elf_backend_can_gc_sections 1
|
#define elf_backend_can_refcount 1
|
#define elf_backend_can_refcount 1
|
#define elf_backend_want_got_plt 1
|
#define elf_backend_want_got_plt 1
|
#define elf_backend_plt_readonly 1
|
#define elf_backend_plt_readonly 1
|
#define elf_backend_want_plt_sym 0
|
#define elf_backend_want_plt_sym 0
|
#define elf_backend_got_header_size 12
|
#define elf_backend_got_header_size 12
|
#define elf_backend_rela_normal 1
|
#define elf_backend_rela_normal 1
|
|
|
#include "elf32-target.h"
|
#include "elf32-target.h"
|
|
|
