/* 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, 95, 96, 97, 98, 1999 Free Software Foundation, Inc.
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Copyright 1993, 95, 96, 97, 98, 1999 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 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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(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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "bfd.h"
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#include "bfd.h"
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#include "sysdep.h"
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#include "sysdep.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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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 *, Elf32_Internal_Rela *));
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PARAMS ((bfd *, arelent *, Elf32_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 boolean elf_m68k_check_relocs
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static 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 asection *elf_m68k_gc_mark_hook
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static asection *elf_m68k_gc_mark_hook
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PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
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PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
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struct elf_link_hash_entry *, Elf_Internal_Sym *));
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struct elf_link_hash_entry *, Elf_Internal_Sym *));
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static boolean elf_m68k_gc_sweep_hook
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static boolean elf_m68k_gc_sweep_hook
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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 boolean elf_m68k_adjust_dynamic_symbol
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static 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 boolean elf_m68k_size_dynamic_sections
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static 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 boolean elf_m68k_relocate_section
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static 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 boolean elf_m68k_finish_dynamic_symbol
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static 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 boolean elf_m68k_finish_dynamic_sections
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static 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 boolean elf32_m68k_set_private_flags
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static 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 boolean elf32_m68k_copy_private_bfd_data
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static boolean elf32_m68k_copy_private_bfd_data
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PARAMS ((bfd *, bfd *));
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PARAMS ((bfd *, bfd *));
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static boolean elf32_m68k_merge_private_bfd_data
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static 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 boolean elf32_m68k_print_private_bfd_data
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static 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 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;
|
}
|
}
|
|
|
#define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup
|
#define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup
|
#define ELF_ARCH bfd_arch_m68k
|
#define ELF_ARCH bfd_arch_m68k
|
/* end code generated by elf.el */
|
/* end code generated by elf.el */
|
|
|
#define USE_RELA
|
#define USE_RELA
|
|
|
|
|
/* 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"
|
|
|
/* 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, 0, /* replaced with offset to .got + 4. */
|
0, 0, 0, 0, /* replaced with offset to .got + 4. */
|
0x4e, 0xfb, 0x01, 0x71, /* jmp ([%pc,addr]) */
|
0x4e, 0xfb, 0x01, 0x71, /* jmp ([%pc,addr]) */
|
0, 0, 0, 0, /* replaced with offset to .got + 8. */
|
0, 0, 0, 0, /* replaced with offset to .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, 0, /* replaced with offset to symbol's .got entry. */
|
0, 0, 0, 0, /* replaced with offset to symbol's .got entry. */
|
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. */
|
0x60, 0xff, /* bra.l .plt */
|
0x60, 0xff, /* bra.l .plt */
|
0, 0, 0, 0 /* replaced with offset to start of .plt. */
|
0, 0, 0, 0 /* replaced with offset to start of .plt. */
|
};
|
};
|
|
|
#define CPU32_FLAG(abfd) (elf_elfheader (abfd)->e_flags & EF_CPU32)
|
#define CPU32_FLAG(abfd) (elf_elfheader (abfd)->e_flags & EF_CPU32)
|
|
|
#define PLT_CPU32_ENTRY_SIZE 24
|
#define PLT_CPU32_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[PLT_CPU32_ENTRY_SIZE] =
|
static const bfd_byte elf_cpu32_plt0_entry[PLT_CPU32_ENTRY_SIZE] =
|
{
|
{
|
0x22, 0x7b, 0x01, 0x70, /* moveal %pc@(0xc), %a1 */
|
0x22, 0x7b, 0x01, 0x70, /* moveal %pc@(0xc), %a1 */
|
0, 0, 0, 0, /* replaced with offset to .got + 4. */
|
0, 0, 0, 0, /* replaced with offset to .got + 4. */
|
0x4e, 0xd1, /* jmp %a1@ */
|
0x4e, 0xd1, /* jmp %a1@ */
|
0, 0, 0, 0, /* replace with offset to .got +8. */
|
0, 0, 0, 0, /* replace with offset to .got +8. */
|
0, 0, 0, 0, /* pad out to 24 bytes. */
|
0, 0, 0, 0, /* pad out to 24 bytes. */
|
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[PLT_CPU32_ENTRY_SIZE] =
|
static const bfd_byte elf_cpu32_plt_entry[PLT_CPU32_ENTRY_SIZE] =
|
{
|
{
|
0x22, 0x7b, 0x01, 0x70, /* moveal %pc@(0xc), %a1 */
|
0x22, 0x7b, 0x01, 0x70, /* moveal %pc@(0xc), %a1 */
|
0, 0, 0, 0, /* replaced with offset to symbol's .got entry. */
|
0, 0, 0, 0, /* replaced with offset to symbol's .got 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, /* replaced with offset into relocation table. */
|
0, 0, 0, 0, /* replaced with offset into relocation table. */
|
0x60, 0xff, /* bra.l .plt */
|
0x60, 0xff, /* bra.l .plt */
|
0, 0, 0, 0, /* replaced with offset to start of .plt. */
|
0, 0, 0, 0, /* replaced with offset to start of .plt. */
|
0, 0
|
0, 0
|
};
|
};
|
|
|
/* 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;
|
};
|
};
|
|
|
/* 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;
|
};
|
};
|
|
|
/* Declare this now that the above structures are defined. */
|
/* Declare this now that the above structures are defined. */
|
|
|
static boolean elf_m68k_discard_copies
|
static boolean elf_m68k_discard_copies
|
PARAMS ((struct elf_m68k_link_hash_entry *, PTR));
|
PARAMS ((struct elf_m68k_link_hash_entry *, PTR));
|
|
|
/* Traverse an m68k ELF linker hash table. */
|
/* Traverse an m68k ELF linker hash table. */
|
|
|
#define elf_m68k_link_hash_traverse(table, func, info) \
|
#define elf_m68k_link_hash_traverse(table, func, info) \
|
(elf_link_hash_traverse \
|
(elf_link_hash_traverse \
|
(&(table)->root, \
|
(&(table)->root, \
|
(boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
|
(boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
|
(info)))
|
(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 elf_m68k_link_hash_entry *ret =
|
struct elf_m68k_link_hash_entry *ret =
|
(struct elf_m68k_link_hash_entry *) entry;
|
(struct elf_m68k_link_hash_entry *) 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 == (struct elf_m68k_link_hash_entry *) NULL)
|
if (ret == (struct elf_m68k_link_hash_entry *) NULL)
|
ret = ((struct elf_m68k_link_hash_entry *)
|
ret = ((struct elf_m68k_link_hash_entry *)
|
bfd_hash_allocate (table,
|
bfd_hash_allocate (table,
|
sizeof (struct elf_m68k_link_hash_entry)));
|
sizeof (struct elf_m68k_link_hash_entry)));
|
if (ret == (struct elf_m68k_link_hash_entry *) NULL)
|
if (ret == (struct elf_m68k_link_hash_entry *) NULL)
|
return (struct bfd_hash_entry *) ret;
|
return (struct bfd_hash_entry *) ret;
|
|
|
/* Call the allocation method of the superclass. */
|
/* Call the allocation method of the superclass. */
|
ret = ((struct elf_m68k_link_hash_entry *)
|
ret = ((struct elf_m68k_link_hash_entry *)
|
_bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
|
_bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
|
table, string));
|
table, string));
|
if (ret != (struct elf_m68k_link_hash_entry *) NULL)
|
if (ret != (struct elf_m68k_link_hash_entry *) NULL)
|
{
|
{
|
ret->pcrel_relocs_copied = NULL;
|
ret->pcrel_relocs_copied = NULL;
|
}
|
}
|
|
|
return (struct bfd_hash_entry *) ret;
|
return (struct bfd_hash_entry *) 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;
|
|
|
ret = ((struct elf_m68k_link_hash_table *)
|
ret = ((struct elf_m68k_link_hash_table *)
|
bfd_alloc (abfd, sizeof (struct elf_m68k_link_hash_table)));
|
bfd_alloc (abfd, sizeof (struct elf_m68k_link_hash_table)));
|
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))
|
{
|
{
|
bfd_release (abfd, ret);
|
bfd_release (abfd, ret);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
return &ret->root.root;
|
return &ret->root.root;
|
}
|
}
|
|
|
/* Keep m68k-specific flags in the ELF header */
|
/* Keep m68k-specific flags in the ELF header */
|
static boolean
|
static 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;
|
}
|
}
|
|
|
/* Copy m68k-specific data from one module to another */
|
/* Copy m68k-specific data from one module to another */
|
static boolean
|
static boolean
|
elf32_m68k_copy_private_bfd_data (ibfd, obfd)
|
elf32_m68k_copy_private_bfd_data (ibfd, obfd)
|
bfd *ibfd;
|
bfd *ibfd;
|
bfd *obfd;
|
bfd *obfd;
|
{
|
{
|
flagword in_flags;
|
flagword in_flags;
|
|
|
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 true;
|
return true;
|
|
|
in_flags = elf_elfheader (ibfd)->e_flags;
|
in_flags = elf_elfheader (ibfd)->e_flags;
|
|
|
elf_elfheader (obfd)->e_flags = in_flags;
|
elf_elfheader (obfd)->e_flags = in_flags;
|
elf_flags_init (obfd) = true;
|
elf_flags_init (obfd) = 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 boolean
|
static 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;
|
|
|
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 true;
|
return true;
|
|
|
in_flags = elf_elfheader (ibfd)->e_flags;
|
in_flags = elf_elfheader (ibfd)->e_flags;
|
out_flags = elf_elfheader (obfd)->e_flags;
|
out_flags = elf_elfheader (obfd)->e_flags;
|
|
|
if (!elf_flags_init (obfd))
|
if (!elf_flags_init (obfd))
|
{
|
{
|
elf_flags_init (obfd) = true;
|
elf_flags_init (obfd) = true;
|
elf_elfheader (obfd)->e_flags = in_flags;
|
elf_elfheader (obfd)->e_flags = in_flags;
|
}
|
}
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
/* Display the flags field */
|
/* Display the flags field */
|
static boolean
|
static 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;
|
|
|
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 (elf_elfheader (abfd)->e_flags & EF_CPU32)
|
if (elf_elfheader (abfd)->e_flags & EF_CPU32)
|
fprintf (file, _ (" [cpu32]"));
|
fprintf (file, _ (" [cpu32]"));
|
|
|
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 boolean
|
static 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->relocateable)
|
if (info->relocateable)
|
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];
|
|
|
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 (dynobj, ".rela.got");
|
srelgot = bfd_make_section (dynobj, ".rela.got");
|
if (srelgot == NULL
|
if (srelgot == NULL
|
|| !bfd_set_section_flags (dynobj, srelgot,
|
|| !bfd_set_section_flags (dynobj, srelgot,
|
(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))
|
|| !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 == -1)
|
if (h->got.refcount == -1)
|
{
|
{
|
h->got.refcount = 1;
|
h->got.refcount = 1;
|
|
|
/* 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)
|
{
|
{
|
if (!bfd_elf32_link_record_dynamic_symbol (info, h))
|
if (!bfd_elf32_link_record_dynamic_symbol (info, h))
|
return false;
|
return false;
|
}
|
}
|
|
|
/* Allocate space in the .got section. */
|
/* Allocate space in the .got section. */
|
sgot->_raw_size += 4;
|
sgot->_raw_size += 4;
|
/* Allocate relocation space. */
|
/* Allocate relocation space. */
|
srelgot->_raw_size += sizeof (Elf32_External_Rela);
|
srelgot->_raw_size += sizeof (Elf32_External_Rela);
|
}
|
}
|
else
|
else
|
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)
|
{
|
{
|
size_t size;
|
size_t size;
|
|
|
size = symtab_hdr->sh_info * sizeof (bfd_signed_vma);
|
size = symtab_hdr->sh_info * sizeof (bfd_signed_vma);
|
local_got_refcounts = ((bfd_signed_vma *)
|
local_got_refcounts = ((bfd_signed_vma *)
|
bfd_alloc (abfd, size));
|
bfd_alloc (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;
|
memset (local_got_refcounts, -1, size);
|
memset (local_got_refcounts, -1, size);
|
}
|
}
|
if (local_got_refcounts[r_symndx] == -1)
|
if (local_got_refcounts[r_symndx] == -1)
|
{
|
{
|
local_got_refcounts[r_symndx] = 1;
|
local_got_refcounts[r_symndx] = 1;
|
|
|
sgot->_raw_size += 4;
|
sgot->_raw_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->_raw_size += sizeof (Elf32_External_Rela);
|
srelgot->_raw_size += sizeof (Elf32_External_Rela);
|
}
|
}
|
}
|
}
|
else
|
else
|
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->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
|
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
|
if (h->plt.refcount == -1)
|
if (h->plt.refcount == -1)
|
h->plt.refcount = 1;
|
h->plt.refcount = 1;
|
else
|
else
|
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)
|
{
|
{
|
if (!bfd_elf32_link_record_dynamic_symbol (info, h))
|
if (!bfd_elf32_link_record_dynamic_symbol (info, h))
|
return false;
|
return false;
|
}
|
}
|
|
|
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
|
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
|
if (h->plt.refcount == -1)
|
if (h->plt.refcount == -1)
|
h->plt.refcount = 1;
|
h->plt.refcount = 1;
|
else
|
else
|
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->elf_link_hash_flags
|
|| (h->elf_link_hash_flags
|
& ELF_LINK_HASH_DEF_REGULAR) == 0)))
|
& ELF_LINK_HASH_DEF_REGULAR) == 0)))
|
{
|
{
|
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. */
|
if (h->plt.refcount == -1)
|
if (h->plt.refcount == -1)
|
h->plt.refcount = 1;
|
h->plt.refcount = 1;
|
else
|
else
|
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. */
|
if (h->plt.refcount == -1)
|
if (h->plt.refcount == -1)
|
h->plt.refcount = 1;
|
h->plt.refcount = 1;
|
else
|
else
|
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 (strncmp (name, ".rela", 5) == 0
|
BFD_ASSERT (strncmp (name, ".rela", 5) == 0
|
&& 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 (dynobj, name);
|
sreloc = bfd_make_section (dynobj, name);
|
if (sreloc == NULL
|
if (sreloc == NULL
|
|| !bfd_set_section_flags (dynobj, sreloc,
|
|| !bfd_set_section_flags (dynobj, sreloc,
|
(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))
|
|| !bfd_set_section_alignment (dynobj, sreloc, 2))
|
|| !bfd_set_section_alignment (dynobj, sreloc, 2))
|
return false;
|
return false;
|
}
|
}
|
}
|
}
|
|
|
sreloc->_raw_size += sizeof (Elf32_External_Rela);
|
sreloc->_raw_size += sizeof (Elf32_External_Rela);
|
|
|
/* If we are linking with -Bsymbolic, we count the number of
|
/* If we are linking with -Bsymbolic, we count the number of
|
PC relative relocations we have entered for this symbol,
|
PC relative relocations we have entered for this symbol,
|
so that we can discard them again if the symbol is later
|
so that we can discard them again if the symbol is later
|
defined by a regular object. Note that this function is
|
defined by a regular object. Note that this function is
|
only called if we are using an m68kelf linker hash table,
|
only called if we are using an m68kelf linker hash table,
|
which means that h is really a pointer to an
|
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)
|
&& info->symbolic)
|
&& info->symbolic)
|
{
|
{
|
struct elf_m68k_link_hash_entry *eh;
|
struct elf_m68k_link_hash_entry *eh;
|
struct elf_m68k_pcrel_relocs_copied *p;
|
struct elf_m68k_pcrel_relocs_copied *p;
|
|
|
eh = (struct elf_m68k_link_hash_entry *) h;
|
eh = (struct elf_m68k_link_hash_entry *) h;
|
|
|
for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
|
for (p = eh->pcrel_relocs_copied; 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, sizeof *p));
|
bfd_alloc (dynobj, sizeof *p));
|
if (p == NULL)
|
if (p == NULL)
|
return false;
|
return false;
|
p->next = eh->pcrel_relocs_copied;
|
p->next = eh->pcrel_relocs_copied;
|
eh->pcrel_relocs_copied = p;
|
eh->pcrel_relocs_copied = 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_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
if (!_bfd_elf32_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:
|
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
if (!_bfd_elf32_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 (abfd, info, rel, h, sym)
|
elf_m68k_gc_mark_hook (abfd, info, rel, h, sym)
|
bfd *abfd;
|
bfd *abfd;
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
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:
|
break;
|
break;
|
|
|
default:
|
default:
|
switch (h->root.type)
|
switch (h->root.type)
|
{
|
{
|
default:
|
default:
|
break;
|
break;
|
|
|
case bfd_link_hash_defined:
|
case bfd_link_hash_defined:
|
case bfd_link_hash_defweak:
|
case bfd_link_hash_defweak:
|
return h->root.u.def.section;
|
return h->root.u.def.section;
|
|
|
case bfd_link_hash_common:
|
case bfd_link_hash_common:
|
return h->root.u.c.p->section;
|
return h->root.u.c.p->section;
|
}
|
}
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
if (!(elf_bad_symtab (abfd)
|
if (!(elf_bad_symtab (abfd)
|
&& ELF_ST_BIND (sym->st_info) != STB_LOCAL)
|
&& ELF_ST_BIND (sym->st_info) != STB_LOCAL)
|
&& ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
|
&& ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
|
&& sym->st_shndx != SHN_COMMON))
|
&& sym->st_shndx != SHN_COMMON))
|
{
|
{
|
return bfd_section_from_elf_index (abfd, sym->st_shndx);
|
return bfd_section_from_elf_index (abfd, sym->st_shndx);
|
}
|
}
|
}
|
}
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Update the got entry reference counts for the section being removed. */
|
/* Update the got entry reference counts for the section being removed. */
|
|
|
static boolean
|
static boolean
|
elf_m68k_gc_sweep_hook (abfd, info, sec, relocs)
|
elf_m68k_gc_sweep_hook (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;
|
{
|
{
|
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;
|
unsigned long r_symndx;
|
unsigned long r_symndx;
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
bfd *dynobj;
|
bfd *dynobj;
|
asection *sgot = NULL;
|
asection *sgot = NULL;
|
asection *srelgot = NULL;
|
asection *srelgot = NULL;
|
|
|
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);
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
if (dynobj)
|
if (dynobj)
|
{
|
{
|
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++)
|
{
|
{
|
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:
|
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];
|
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->_raw_size -= 4;
|
sgot->_raw_size -= 4;
|
srelgot->_raw_size -= sizeof (Elf32_External_Rela);
|
srelgot->_raw_size -= sizeof (Elf32_External_Rela);
|
}
|
}
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
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->_raw_size -= 4;
|
sgot->_raw_size -= 4;
|
if (info->shared)
|
if (info->shared)
|
srelgot->_raw_size -= sizeof (Elf32_External_Rela);
|
srelgot->_raw_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:
|
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];
|
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;
|
}
|
}
|
|
|
|
|
/* 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 boolean
|
static 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;
|
{
|
{
|
bfd *dynobj;
|
bfd *dynobj;
|
asection *s;
|
asection *s;
|
unsigned int power_of_two;
|
unsigned int power_of_two;
|
|
|
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->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
|
&& ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
|
|| h->weakdef != NULL
|
|| h->weakdef != NULL
|
|| ((h->elf_link_hash_flags
|
|| ((h->elf_link_hash_flags
|
& ELF_LINK_HASH_DEF_DYNAMIC) != 0
|
& ELF_LINK_HASH_DEF_DYNAMIC) != 0
|
&& (h->elf_link_hash_flags
|
&& (h->elf_link_hash_flags
|
& ELF_LINK_HASH_REF_REGULAR) != 0
|
& ELF_LINK_HASH_REF_REGULAR) != 0
|
&& (h->elf_link_hash_flags
|
&& (h->elf_link_hash_flags
|
& ELF_LINK_HASH_DEF_REGULAR) == 0)));
|
& ELF_LINK_HASH_DEF_REGULAR) == 0)));
|
|
|
/* 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->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
|
|| (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
|
{
|
{
|
if (! info->shared
|
if (! info->shared
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0
|
/* 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. In such a case, we don't actually need to build
|
object. In such a case, we don't actually need to build
|
a procedure linkage table, and we can just do a PCxx
|
a procedure linkage table, and we can just do a PCxx
|
reloc instead. */
|
reloc instead. */
|
BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
|
BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
|
h->plt.offset = (bfd_vma) -1;
|
h->plt.offset = (bfd_vma) -1;
|
return true;
|
return true;
|
}
|
}
|
|
|
/* GC may have rendered this entry unused. */
|
/* GC may have rendered this entry unused. */
|
if (h->plt.refcount <= 0)
|
if (h->plt.refcount <= 0)
|
{
|
{
|
h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
|
h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
|
h->plt.offset = (bfd_vma) -1;
|
h->plt.offset = (bfd_vma) -1;
|
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)
|
{
|
{
|
if (! bfd_elf32_link_record_dynamic_symbol (info, h))
|
if (! bfd_elf32_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->_raw_size == 0)
|
if (s->_raw_size == 0)
|
{
|
{
|
if (CPU32_FLAG (dynobj))
|
if (CPU32_FLAG (dynobj))
|
s->_raw_size += PLT_CPU32_ENTRY_SIZE;
|
s->_raw_size += PLT_CPU32_ENTRY_SIZE;
|
else
|
else
|
s->_raw_size += PLT_ENTRY_SIZE;
|
s->_raw_size += PLT_ENTRY_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->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
{
|
{
|
h->root.u.def.section = s;
|
h->root.u.def.section = s;
|
h->root.u.def.value = s->_raw_size;
|
h->root.u.def.value = s->_raw_size;
|
}
|
}
|
|
|
h->plt.offset = s->_raw_size;
|
h->plt.offset = s->_raw_size;
|
|
|
/* Make room for this entry. */
|
/* Make room for this entry. */
|
if (CPU32_FLAG (dynobj))
|
if (CPU32_FLAG (dynobj))
|
s->_raw_size += PLT_CPU32_ENTRY_SIZE;
|
s->_raw_size += PLT_CPU32_ENTRY_SIZE;
|
else
|
else
|
s->_raw_size += PLT_ENTRY_SIZE;
|
s->_raw_size += PLT_ENTRY_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->_raw_size += 4;
|
s->_raw_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->_raw_size += sizeof (Elf32_External_Rela);
|
s->_raw_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->weakdef != NULL)
|
if (h->weakdef != NULL)
|
{
|
{
|
BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
|
BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
|
|| h->weakdef->root.type == bfd_link_hash_defweak);
|
|| h->weakdef->root.type == bfd_link_hash_defweak);
|
h->root.u.def.section = h->weakdef->root.u.def.section;
|
h->root.u.def.section = h->weakdef->root.u.def.section;
|
h->root.u.def.value = h->weakdef->root.u.def.value;
|
h->root.u.def.value = h->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;
|
|
|
/* 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->_raw_size += sizeof (Elf32_External_Rela);
|
srel->_raw_size += sizeof (Elf32_External_Rela);
|
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
|
h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
|
}
|
}
|
|
|
/* We need to figure out the alignment required for this symbol. I
|
/* We need to figure out the alignment required for this symbol. I
|
have no idea how ELF linkers handle this. */
|
have no idea how ELF linkers handle this. */
|
power_of_two = bfd_log2 (h->size);
|
power_of_two = bfd_log2 (h->size);
|
if (power_of_two > 3)
|
if (power_of_two > 3)
|
power_of_two = 3;
|
power_of_two = 3;
|
|
|
/* Apply the required alignment. */
|
/* Apply the required alignment. */
|
s->_raw_size = BFD_ALIGN (s->_raw_size,
|
s->_raw_size = BFD_ALIGN (s->_raw_size,
|
(bfd_size_type) (1 << power_of_two));
|
(bfd_size_type) (1 << power_of_two));
|
if (power_of_two > bfd_get_section_alignment (dynobj, s))
|
if (power_of_two > bfd_get_section_alignment (dynobj, s))
|
{
|
{
|
if (!bfd_set_section_alignment (dynobj, s, power_of_two))
|
if (!bfd_set_section_alignment (dynobj, s, power_of_two))
|
return false;
|
return false;
|
}
|
}
|
|
|
/* Define the symbol as being at this point in the section. */
|
/* Define the symbol as being at this point in the section. */
|
h->root.u.def.section = s;
|
h->root.u.def.section = s;
|
h->root.u.def.value = s->_raw_size;
|
h->root.u.def.value = s->_raw_size;
|
|
|
/* Increment the section size to make room for the symbol. */
|
/* Increment the section size to make room for the symbol. */
|
s->_raw_size += h->size;
|
s->_raw_size += h->size;
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
/* Set the sizes of the dynamic sections. */
|
/* Set the sizes of the dynamic sections. */
|
|
|
static boolean
|
static boolean
|
elf_m68k_size_dynamic_sections (output_bfd, info)
|
elf_m68k_size_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 *s;
|
asection *s;
|
boolean plt;
|
boolean plt;
|
boolean relocs;
|
boolean relocs;
|
boolean reltext;
|
boolean reltext;
|
|
|
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->shared)
|
if (!info->shared)
|
{
|
{
|
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->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
|
s->_raw_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->_raw_size = 0;
|
s->_raw_size = 0;
|
}
|
}
|
|
|
/* If this is a -Bsymbolic shared link, then we need to discard all PC
|
/* If this is a -Bsymbolic shared link, then we need to discard all PC
|
relative relocs against symbols defined in a regular object. We
|
relative relocs against symbols defined in a regular object. We
|
allocated space for them in the check_relocs routine, but we will not
|
allocated space for them in the check_relocs routine, but we will not
|
fill them in in the relocate_section routine. */
|
fill them in in the relocate_section routine. */
|
if (info->shared && info->symbolic)
|
if (info->shared && info->symbolic)
|
elf_m68k_link_hash_traverse (elf_m68k_hash_table (info),
|
elf_m68k_link_hash_traverse (elf_m68k_hash_table (info),
|
elf_m68k_discard_copies,
|
elf_m68k_discard_copies,
|
(PTR) NULL);
|
(PTR) NULL);
|
|
|
/* 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;
|
reltext = false;
|
reltext = 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;
|
boolean strip;
|
boolean strip;
|
|
|
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);
|
|
|
strip = false;
|
strip = false;
|
|
|
if (strcmp (name, ".plt") == 0)
|
if (strcmp (name, ".plt") == 0)
|
{
|
{
|
if (s->_raw_size == 0)
|
if (s->_raw_size == 0)
|
{
|
{
|
/* Strip this section if we don't need it; see the
|
/* Strip this section if we don't need it; see the
|
comment below. */
|
comment below. */
|
strip = true;
|
strip = true;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* Remember whether there is a PLT. */
|
/* Remember whether there is a PLT. */
|
plt = true;
|
plt = true;
|
}
|
}
|
}
|
}
|
else if (strncmp (name, ".rela", 5) == 0)
|
else if (strncmp (name, ".rela", 5) == 0)
|
{
|
{
|
if (s->_raw_size == 0)
|
if (s->_raw_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. */
|
strip = true;
|
strip = true;
|
}
|
}
|
else
|
else
|
{
|
{
|
asection *target;
|
asection *target;
|
|
|
/* Remember whether there are any reloc sections other
|
/* Remember whether there are any reloc sections other
|
than .rela.plt. */
|
than .rela.plt. */
|
if (strcmp (name, ".rela.plt") != 0)
|
if (strcmp (name, ".rela.plt") != 0)
|
{
|
{
|
const char *outname;
|
const char *outname;
|
|
|
relocs = true;
|
relocs = true;
|
|
|
/* If this relocation section applies to a read only
|
/* If this relocation section applies to a read only
|
section, then we probably need a DT_TEXTREL
|
section, then we probably need a DT_TEXTREL
|
entry. .rela.plt is actually associated with
|
entry. .rela.plt is actually associated with
|
.got.plt, which is never readonly. */
|
.got.plt, which is never readonly. */
|
outname = bfd_get_section_name (output_bfd,
|
outname = bfd_get_section_name (output_bfd,
|
s->output_section);
|
s->output_section);
|
target = bfd_get_section_by_name (output_bfd, outname + 5);
|
target = bfd_get_section_by_name (output_bfd, outname + 5);
|
if (target != NULL
|
if (target != NULL
|
&& (target->flags & SEC_READONLY) != 0
|
&& (target->flags & SEC_READONLY) != 0
|
&& (target->flags & SEC_ALLOC) != 0)
|
&& (target->flags & SEC_ALLOC) != 0)
|
reltext = true;
|
reltext = 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 (strncmp (name, ".got", 4) != 0)
|
else if (strncmp (name, ".got", 4) != 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 (strip)
|
if (strip)
|
{
|
{
|
_bfd_strip_section_from_output (info, s);
|
_bfd_strip_section_from_output (info, s);
|
continue;
|
continue;
|
}
|
}
|
|
|
/* Allocate memory for the section contents. */
|
/* Allocate memory for the section contents. */
|
s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size);
|
s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size);
|
if (s->contents == NULL && s->_raw_size != 0)
|
if (s->contents == NULL && s->_raw_size != 0)
|
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. */
|
if (!info->shared)
|
if (!info->shared)
|
{
|
{
|
if (!bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0))
|
if (!bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0))
|
return false;
|
return false;
|
}
|
}
|
|
|
if (plt)
|
if (plt)
|
{
|
{
|
if (!bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)
|
if (!bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)
|
|| !bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0)
|
|| !bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0)
|
|| !bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
|
|| !bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA)
|
|| !bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0))
|
|| !bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0))
|
return false;
|
return false;
|
}
|
}
|
|
|
if (relocs)
|
if (relocs)
|
{
|
{
|
if (!bfd_elf32_add_dynamic_entry (info, DT_RELA, 0)
|
if (!bfd_elf32_add_dynamic_entry (info, DT_RELA, 0)
|
|| !bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0)
|
|| !bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0)
|
|| !bfd_elf32_add_dynamic_entry (info, DT_RELAENT,
|
|| !bfd_elf32_add_dynamic_entry (info, DT_RELAENT,
|
sizeof (Elf32_External_Rela)))
|
sizeof (Elf32_External_Rela)))
|
return false;
|
return false;
|
}
|
}
|
|
|
if (reltext)
|
if (reltext)
|
{
|
{
|
if (!bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0))
|
if (!bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0))
|
return false;
|
return false;
|
}
|
}
|
}
|
}
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
/* This function is called via elf_m68k_link_hash_traverse if we are
|
/* This function is called via elf_m68k_link_hash_traverse if we are
|
creating a shared object with -Bsymbolic. It discards the space
|
creating a shared object with -Bsymbolic. It discards the space
|
allocated to copy PC relative relocs against symbols which are defined
|
allocated to copy PC relative relocs against symbols which are defined
|
in regular objects. We allocated space for them in the check_relocs
|
in regular objects. We allocated space for them in the check_relocs
|
routine, but we won't fill them in in the relocate_section routine. */
|
routine, but we won't fill them in in the relocate_section routine. */
|
|
|
/*ARGSUSED*/
|
/*ARGSUSED*/
|
static boolean
|
static boolean
|
elf_m68k_discard_copies (h, ignore)
|
elf_m68k_discard_copies (h, ignore)
|
struct elf_m68k_link_hash_entry *h;
|
struct elf_m68k_link_hash_entry *h;
|
PTR ignore ATTRIBUTE_UNUSED;
|
PTR ignore ATTRIBUTE_UNUSED;
|
{
|
{
|
struct elf_m68k_pcrel_relocs_copied *s;
|
struct elf_m68k_pcrel_relocs_copied *s;
|
|
|
/* We only discard relocs for symbols defined in a regular object. */
|
/* We only discard relocs for symbols defined in a regular object. */
|
if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
return true;
|
return true;
|
|
|
for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
|
for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
|
s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela);
|
s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela);
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
/* Relocate an M68K ELF section. */
|
/* Relocate an M68K ELF section. */
|
|
|
static boolean
|
static 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_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);
|
|
|
if (info->relocateable)
|
if (info->relocateable)
|
{
|
{
|
/* This is a relocateable link. We don't have to change
|
/* This is a relocateable link. We don't have to change
|
anything, unless the reloc is against a section symbol,
|
anything, unless the reloc is against a section symbol,
|
in which case we have to adjust according to where the
|
in which case we have to adjust according to where the
|
section symbol winds up in the output section. */
|
section symbol winds up in the output section. */
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
{
|
{
|
sym = local_syms + r_symndx;
|
sym = local_syms + r_symndx;
|
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
|
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
|
{
|
{
|
sec = local_sections[r_symndx];
|
sec = local_sections[r_symndx];
|
rel->r_addend += sec->output_offset + sym->st_value;
|
rel->r_addend += sec->output_offset + sym->st_value;
|
}
|
}
|
}
|
}
|
|
|
continue;
|
continue;
|
}
|
}
|
|
|
/* This is a final link. */
|
/* This is a final link. */
|
h = NULL;
|
h = NULL;
|
sym = NULL;
|
sym = NULL;
|
sec = NULL;
|
sec = NULL;
|
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 = (sec->output_section->vma
|
relocation = (sec->output_section->vma
|
+ sec->output_offset
|
+ sec->output_offset
|
+ sym->st_value);
|
+ sym->st_value);
|
}
|
}
|
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;
|
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)
|
{
|
{
|
sec = h->root.u.def.section;
|
sec = h->root.u.def.section;
|
if (((r_type == R_68K_PLT8
|
if (((r_type == R_68K_PLT8
|
|| r_type == R_68K_PLT16
|
|| r_type == R_68K_PLT16
|
|| r_type == R_68K_PLT32
|
|| r_type == R_68K_PLT32
|
|| r_type == R_68K_PLT8O
|
|| r_type == R_68K_PLT8O
|
|| r_type == R_68K_PLT16O
|
|| r_type == R_68K_PLT16O
|
|| r_type == R_68K_PLT32O)
|
|| r_type == R_68K_PLT32O)
|
&& h->plt.offset != (bfd_vma) -1
|
&& h->plt.offset != (bfd_vma) -1
|
&& elf_hash_table (info)->dynamic_sections_created)
|
&& elf_hash_table (info)->dynamic_sections_created)
|
|| ((r_type == R_68K_GOT8O
|
|| ((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
|
|| ((r_type == R_68K_GOT8
|
|| ((r_type == R_68K_GOT8
|
|| r_type == R_68K_GOT16
|
|| r_type == R_68K_GOT16
|
|| r_type == R_68K_GOT32)
|
|| r_type == R_68K_GOT32)
|
&& strcmp (h->root.root.string,
|
&& strcmp (h->root.root.string,
|
"_GLOBAL_OFFSET_TABLE_") != 0))
|
"_GLOBAL_OFFSET_TABLE_") != 0))
|
&& elf_hash_table (info)->dynamic_sections_created
|
&& elf_hash_table (info)->dynamic_sections_created
|
&& (! info->shared
|
&& (! info->shared
|
|| (! info->symbolic && h->dynindx != -1)
|
|| (! info->symbolic && h->dynindx != -1)
|
|| (h->elf_link_hash_flags
|
|| (h->elf_link_hash_flags
|
& ELF_LINK_HASH_DEF_REGULAR) == 0))
|
& ELF_LINK_HASH_DEF_REGULAR) == 0))
|
|| (info->shared
|
|| (info->shared
|
&& ((! info->symbolic && h->dynindx != -1)
|
&& ((! info->symbolic && h->dynindx != -1)
|
|| (h->elf_link_hash_flags
|
|| (h->elf_link_hash_flags
|
& ELF_LINK_HASH_DEF_REGULAR) == 0)
|
& ELF_LINK_HASH_DEF_REGULAR) == 0)
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& (r_type == R_68K_8
|
&& (r_type == R_68K_8
|
|| r_type == R_68K_16
|
|| r_type == R_68K_16
|
|| r_type == R_68K_32
|
|| r_type == R_68K_32
|
|| 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)))
|
{
|
{
|
/* In these cases, we don't need the relocation
|
/* In these cases, we don't need the relocation
|
value. We check specially because in some
|
value. We check specially because in some
|
obscure cases sec->output_section will be NULL. */
|
obscure cases sec->output_section will be NULL. */
|
relocation = 0;
|
relocation = 0;
|
}
|
}
|
else
|
else
|
relocation = (h->root.u.def.value
|
relocation = (h->root.u.def.value
|
+ sec->output_section->vma
|
+ sec->output_section->vma
|
+ sec->output_offset);
|
+ sec->output_offset);
|
}
|
}
|
else if (h->root.type == bfd_link_hash_undefweak)
|
else if (h->root.type == bfd_link_hash_undefweak)
|
relocation = 0;
|
relocation = 0;
|
else if (info->shared && !info->symbolic && !info->no_undefined)
|
else if (info->shared && !info->symbolic && !info->no_undefined)
|
relocation = 0;
|
relocation = 0;
|
else
|
else
|
{
|
{
|
if (!(info->callbacks->undefined_symbol
|
if (!(info->callbacks->undefined_symbol
|
(info, h->root.root.string, input_bfd,
|
(info, h->root.root.string, input_bfd,
|
input_section, rel->r_offset,
|
input_section, rel->r_offset,
|
(!info->shared || info->no_undefined))))
|
(!info->shared || info->no_undefined))))
|
return false;
|
return false;
|
relocation = 0;
|
relocation = 0;
|
}
|
}
|
}
|
}
|
|
|
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)
|
{
|
{
|
off = h->got.offset;
|
off = h->got.offset;
|
BFD_ASSERT (off != (bfd_vma) -1);
|
BFD_ASSERT (off != (bfd_vma) -1);
|
|
|
if (!elf_hash_table (info)->dynamic_sections_created
|
if (!elf_hash_table (info)->dynamic_sections_created
|
|| (info->shared
|
|| (info->shared
|
&& (info->symbolic || h->dynindx == -1)
|
&& (info->symbolic || h->dynindx == -1)
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_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
|
{
|
{
|
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 *srelgot;
|
asection *srelgot;
|
Elf_Internal_Rela outrel;
|
Elf_Internal_Rela outrel;
|
|
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
BFD_ASSERT (srelgot != NULL);
|
BFD_ASSERT (srelgot != 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;
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
|
(((Elf32_External_Rela *)
|
(((Elf32_External_Rela *)
|
srelgot->contents)
|
srelgot->contents)
|
+ srelgot->reloc_count));
|
+ srelgot->reloc_count));
|
++srelgot->reloc_count;
|
++srelgot->reloc_count;
|
}
|
}
|
|
|
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);
|
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;
|
|
|
/* 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)
|
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
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& ((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->symbolic
|
|| (!info->symbolic
|
|| (h->elf_link_hash_flags
|
|| (h->elf_link_hash_flags
|
& ELF_LINK_HASH_DEF_REGULAR) == 0)))
|
& ELF_LINK_HASH_DEF_REGULAR) == 0)))
|
{
|
{
|
Elf_Internal_Rela outrel;
|
Elf_Internal_Rela outrel;
|
boolean skip, relocate;
|
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. */
|
|
|
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
|
(input_bfd,
|
(input_bfd,
|
elf_elfheader (input_bfd)->e_shstrndx,
|
elf_elfheader (input_bfd)->e_shstrndx,
|
elf_section_data (input_section)->rel_hdr.sh_name));
|
elf_section_data (input_section)->rel_hdr.sh_name));
|
if (name == NULL)
|
if (name == NULL)
|
return false;
|
return false;
|
|
|
BFD_ASSERT (strncmp (name, ".rela", 5) == 0
|
BFD_ASSERT (strncmp (name, ".rela", 5) == 0
|
&& strcmp (bfd_get_section_name (input_bfd,
|
&& strcmp (bfd_get_section_name (input_bfd,
|
input_section),
|
input_section),
|
name + 5) == 0);
|
name + 5) == 0);
|
|
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
BFD_ASSERT (sreloc != NULL);
|
BFD_ASSERT (sreloc != NULL);
|
}
|
}
|
|
|
skip = false;
|
skip = false;
|
|
|
if (elf_section_data (input_section)->stab_info == NULL)
|
if (elf_section_data (input_section)->stab_info == NULL)
|
outrel.r_offset = rel->r_offset;
|
outrel.r_offset = rel->r_offset;
|
else
|
else
|
{
|
{
|
bfd_vma off;
|
bfd_vma off;
|
|
|
off = (_bfd_stab_section_offset
|
off = (_bfd_stab_section_offset
|
(output_bfd, &elf_hash_table (info)->stab_info,
|
(output_bfd, &elf_hash_table (info)->stab_info,
|
input_section,
|
input_section,
|
&elf_section_data (input_section)->stab_info,
|
&elf_section_data (input_section)->stab_info,
|
rel->r_offset));
|
rel->r_offset));
|
if (off == (bfd_vma) -1)
|
if (off == (bfd_vma) -1)
|
skip = true;
|
skip = true;
|
outrel.r_offset = off;
|
outrel.r_offset = off;
|
}
|
}
|
|
|
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);
|
relocate = false;
|
relocate = false;
|
}
|
}
|
/* h->dynindx may be -1 if the symbol was marked to
|
/* h->dynindx may be -1 if the symbol was marked to
|
become local. */
|
become local. */
|
else if (h != NULL
|
else if (h != NULL
|
&& ((! info->symbolic && h->dynindx != -1)
|
&& ((! info->symbolic && h->dynindx != -1)
|
|| (h->elf_link_hash_flags
|
|| (h->elf_link_hash_flags
|
& ELF_LINK_HASH_DEF_REGULAR) == 0))
|
& ELF_LINK_HASH_DEF_REGULAR) == 0))
|
{
|
{
|
BFD_ASSERT (h->dynindx != -1);
|
BFD_ASSERT (h->dynindx != -1);
|
relocate = false;
|
relocate = false;
|
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
|
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
|
outrel.r_addend = relocation + rel->r_addend;
|
outrel.r_addend = relocation + rel->r_addend;
|
}
|
}
|
else
|
else
|
{
|
{
|
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);
|
outrel.r_addend = relocation + rel->r_addend;
|
outrel.r_addend = relocation + rel->r_addend;
|
}
|
}
|
else
|
else
|
{
|
{
|
long indx;
|
long indx;
|
|
|
if (h == NULL)
|
if (h == NULL)
|
sec = local_sections[r_symndx];
|
sec = local_sections[r_symndx];
|
else
|
else
|
{
|
{
|
BFD_ASSERT (h->root.type == bfd_link_hash_defined
|
BFD_ASSERT (h->root.type == bfd_link_hash_defined
|
|| (h->root.type
|
|| (h->root.type
|
== bfd_link_hash_defweak));
|
== bfd_link_hash_defweak));
|
sec = h->root.u.def.section;
|
sec = h->root.u.def.section;
|
}
|
}
|
if (sec != NULL && bfd_is_abs_section (sec))
|
if (sec != NULL && 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;
|
|
|
osec = sec->output_section;
|
osec = sec->output_section;
|
indx = elf_section_data (osec)->dynindx;
|
indx = elf_section_data (osec)->dynindx;
|
BFD_ASSERT (indx > 0);
|
BFD_ASSERT (indx > 0);
|
}
|
}
|
|
|
relocate = false;
|
relocate = false;
|
outrel.r_info = ELF32_R_INFO (indx, r_type);
|
outrel.r_info = ELF32_R_INFO (indx, r_type);
|
outrel.r_addend = relocation + rel->r_addend;
|
outrel.r_addend = relocation + rel->r_addend;
|
}
|
}
|
}
|
}
|
|
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel,
|
(((Elf32_External_Rela *)
|
(((Elf32_External_Rela *)
|
sreloc->contents)
|
sreloc->contents)
|
+ sreloc->reloc_count));
|
+ sreloc->reloc_count));
|
++sreloc->reloc_count;
|
++sreloc->reloc_count;
|
|
|
/* 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;
|
}
|
}
|
|
|
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)
|
{
|
{
|
switch (r)
|
switch (r)
|
{
|
{
|
default:
|
default:
|
case bfd_reloc_outofrange:
|
case bfd_reloc_outofrange:
|
abort ();
|
abort ();
|
case bfd_reloc_overflow:
|
case bfd_reloc_overflow:
|
{
|
{
|
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 (!(info->callbacks->reloc_overflow
|
if (!(info->callbacks->reloc_overflow
|
(info, name, howto->name, (bfd_vma) 0,
|
(info, name, howto->name, (bfd_vma) 0,
|
input_bfd, input_section, rel->r_offset)))
|
input_bfd, input_section, rel->r_offset)))
|
return false;
|
return false;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
/* 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 boolean
|
static 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;
|
int plt_off1, plt_off2, plt_off3;
|
int plt_off1, plt_off2, plt_off3;
|
|
|
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)
|
{
|
{
|
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;
|
|
|
/* 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);
|
|
|
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. */
|
if ( CPU32_FLAG (output_bfd))
|
if ( CPU32_FLAG (output_bfd))
|
plt_index = h->plt.offset / PLT_CPU32_ENTRY_SIZE - 1;
|
plt_index = h->plt.offset / PLT_CPU32_ENTRY_SIZE - 1;
|
else
|
else
|
plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
|
plt_index = h->plt.offset / PLT_ENTRY_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;
|
|
|
if ( CPU32_FLAG (output_bfd))
|
if ( CPU32_FLAG (output_bfd))
|
{
|
{
|
/* Fill in the entry in the procedure linkage table. */
|
/* Fill in the entry in the procedure linkage table. */
|
memcpy (splt->contents + h->plt.offset, elf_cpu32_plt_entry,
|
memcpy (splt->contents + h->plt.offset, elf_cpu32_plt_entry,
|
PLT_CPU32_ENTRY_SIZE);
|
PLT_CPU32_ENTRY_SIZE);
|
plt_off1 = 4;
|
plt_off1 = 4;
|
plt_off2 = 12;
|
plt_off2 = 12;
|
plt_off3 = 18;
|
plt_off3 = 18;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* Fill in the entry in the procedure linkage table. */
|
/* Fill in the entry in the procedure linkage table. */
|
memcpy (splt->contents + h->plt.offset, elf_m68k_plt_entry,
|
memcpy (splt->contents + h->plt.offset, elf_m68k_plt_entry,
|
PLT_ENTRY_SIZE);
|
PLT_ENTRY_SIZE);
|
plt_off1 = 4;
|
plt_off1 = 4;
|
plt_off2 = 10;
|
plt_off2 = 10;
|
plt_off3 = 16;
|
plt_off3 = 16;
|
}
|
}
|
|
|
/* The offset is relative to the first extension word. */
|
/* The offset is relative to the first extension word. */
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(sgot->output_section->vma
|
(sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ got_offset
|
+ got_offset
|
- (splt->output_section->vma
|
- (splt->output_section->vma
|
+ h->plt.offset + 2)),
|
+ h->plt.offset + 2)),
|
splt->contents + h->plt.offset + plt_off1);
|
splt->contents + h->plt.offset + plt_off1);
|
|
|
bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
|
bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela),
|
splt->contents + h->plt.offset + plt_off2);
|
splt->contents + h->plt.offset + plt_off2);
|
bfd_put_32 (output_bfd, - (h->plt.offset + plt_off3),
|
bfd_put_32 (output_bfd, - (h->plt.offset + plt_off3),
|
splt->contents + h->plt.offset + plt_off3);
|
splt->contents + h->plt.offset + plt_off3);
|
|
|
/* 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
|
+ 8),
|
+ 8),
|
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;
|
bfd_elf32_swap_reloca_out (output_bfd, &rela,
|
bfd_elf32_swap_reloca_out (output_bfd, &rela,
|
((Elf32_External_Rela *) srela->contents
|
((Elf32_External_Rela *) srela->contents
|
+ plt_index));
|
+ plt_index));
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
|
{
|
{
|
/* 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;
|
|
|
/* 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 &~ 1));
|
+ (h->got.offset &~ 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 || h->dynindx == -1)
|
&& (info->symbolic || h->dynindx == -1)
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
|
&& (h->elf_link_hash_flags & ELF_LINK_HASH_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 & ~1)));
|
+ (h->got.offset & ~1)));
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_put_32 (output_bfd, (bfd_vma) 0,
|
bfd_put_32 (output_bfd, (bfd_vma) 0,
|
sgot->contents + (h->got.offset & ~1));
|
sgot->contents + (h->got.offset & ~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;
|
}
|
}
|
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela,
|
bfd_elf32_swap_reloca_out (output_bfd, &rela,
|
((Elf32_External_Rela *) srela->contents
|
((Elf32_External_Rela *) srela->contents
|
+ srela->reloc_count));
|
+ srela->reloc_count));
|
++srela->reloc_count;
|
++srela->reloc_count;
|
}
|
}
|
|
|
if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
|
if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
|
{
|
{
|
asection *s;
|
asection *s;
|
Elf_Internal_Rela rela;
|
Elf_Internal_Rela rela;
|
|
|
/* 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;
|
bfd_elf32_swap_reloca_out (output_bfd, &rela,
|
bfd_elf32_swap_reloca_out (output_bfd, &rela,
|
((Elf32_External_Rela *) s->contents
|
((Elf32_External_Rela *) s->contents
|
+ s->reloc_count));
|
+ s->reloc_count));
|
++s->reloc_count;
|
++s->reloc_count;
|
}
|
}
|
|
|
/* 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
|
|| strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
|| strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
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 boolean
|
static 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->_raw_size);
|
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_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);
|
if (s->_cooked_size != 0)
|
if (s->_cooked_size != 0)
|
dyn.d_un.d_val = s->_cooked_size;
|
dyn.d_un.d_val = s->_cooked_size;
|
else
|
else
|
dyn.d_un.d_val = s->_raw_size;
|
dyn.d_un.d_val = s->_raw_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)
|
{
|
{
|
if (s->_cooked_size != 0)
|
if (s->_cooked_size != 0)
|
dyn.d_un.d_val -= s->_cooked_size;
|
dyn.d_un.d_val -= s->_cooked_size;
|
else
|
else
|
dyn.d_un.d_val -= s->_raw_size;
|
dyn.d_un.d_val -= s->_raw_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->_raw_size > 0)
|
if (splt->_raw_size > 0)
|
{
|
{
|
if (!CPU32_FLAG (output_bfd))
|
if (!CPU32_FLAG (output_bfd))
|
{
|
{
|
memcpy (splt->contents, elf_m68k_plt0_entry, PLT_ENTRY_SIZE);
|
memcpy (splt->contents, elf_m68k_plt0_entry, PLT_ENTRY_SIZE);
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(sgot->output_section->vma
|
(sgot->output_section->vma
|
+ sgot->output_offset + 4
|
+ sgot->output_offset + 4
|
- (splt->output_section->vma + 2)),
|
- (splt->output_section->vma + 2)),
|
splt->contents + 4);
|
splt->contents + 4);
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(sgot->output_section->vma
|
(sgot->output_section->vma
|
+ sgot->output_offset + 8
|
+ sgot->output_offset + 8
|
- (splt->output_section->vma + 10)),
|
- (splt->output_section->vma + 10)),
|
splt->contents + 12);
|
splt->contents + 12);
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize
|
= PLT_ENTRY_SIZE;
|
= PLT_ENTRY_SIZE;
|
}
|
}
|
else /* cpu32 */
|
else /* cpu32 */
|
{
|
{
|
memcpy (splt->contents, elf_cpu32_plt0_entry, PLT_CPU32_ENTRY_SIZE);
|
memcpy (splt->contents, elf_cpu32_plt0_entry, PLT_CPU32_ENTRY_SIZE);
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(sgot->output_section->vma
|
(sgot->output_section->vma
|
+ sgot->output_offset + 4
|
+ sgot->output_offset + 4
|
- (splt->output_section->vma + 2)),
|
- (splt->output_section->vma + 2)),
|
splt->contents + 4);
|
splt->contents + 4);
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(sgot->output_section->vma
|
(sgot->output_section->vma
|
+ sgot->output_offset + 8
|
+ sgot->output_offset + 8
|
- (splt->output_section->vma + 10)),
|
- (splt->output_section->vma + 10)),
|
splt->contents + 10);
|
splt->contents + 10);
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize
|
= PLT_CPU32_ENTRY_SIZE;
|
= PLT_CPU32_ENTRY_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->_raw_size > 0)
|
if (sgot->_raw_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;
|
}
|
}
|
|
|
#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_elf32_gc_common_final_link
|
#define bfd_elf32_bfd_final_link _bfd_elf32_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_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_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_copy_private_bfd_data \
|
#define bfd_elf32_bfd_copy_private_bfd_data \
|
elf32_m68k_copy_private_bfd_data
|
elf32_m68k_copy_private_bfd_data
|
#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_can_gc_sections 1
|
#define elf_backend_can_gc_sections 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
|
|
|
#include "elf32-target.h"
|
#include "elf32-target.h"
|
|
|
