/* CRIS-specific support for 32-bit ELF.
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/* CRIS-specific support for 32-bit ELF.
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Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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Contributed by Axis Communications AB.
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Contributed by Axis Communications AB.
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Written by Hans-Peter Nilsson, based on elf32-fr30.c
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Written by Hans-Peter Nilsson, based on elf32-fr30.c
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PIC and shlib bits based primarily on elf32-m68k.c and elf32-i386.c.
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PIC and shlib bits based primarily on elf32-m68k.c and elf32-i386.c.
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This file is part of BFD, the Binary File Descriptor library.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfd.h"
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#include "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/cris.h"
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#include "elf/cris.h"
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/* Forward declarations. */
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/* Forward declarations. */
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static reloc_howto_type * cris_reloc_type_lookup
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static reloc_howto_type * cris_reloc_type_lookup
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PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
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PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
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static void cris_info_to_howto_rela
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static void cris_info_to_howto_rela
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PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
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PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
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static bfd_reloc_status_type cris_elf_pcrel_reloc
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static bfd_reloc_status_type cris_elf_pcrel_reloc
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
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static bfd_boolean cris_elf_grok_prstatus
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static bfd_boolean cris_elf_grok_prstatus
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PARAMS ((bfd *abfd, Elf_Internal_Note *note));
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PARAMS ((bfd *abfd, Elf_Internal_Note *note));
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static bfd_boolean cris_elf_grok_psinfo
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static bfd_boolean cris_elf_grok_psinfo
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PARAMS ((bfd *abfd, Elf_Internal_Note *note));
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PARAMS ((bfd *abfd, Elf_Internal_Note *note));
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static bfd_boolean cris_elf_relocate_section
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static bfd_boolean cris_elf_relocate_section
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PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
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PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
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Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
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Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
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static bfd_reloc_status_type cris_final_link_relocate
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static bfd_reloc_status_type cris_final_link_relocate
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PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
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PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
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Elf_Internal_Rela *, bfd_vma));
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Elf_Internal_Rela *, bfd_vma));
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static bfd_boolean cris_elf_object_p PARAMS ((bfd *));
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static bfd_boolean cris_elf_object_p PARAMS ((bfd *));
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static void cris_elf_final_write_processing PARAMS ((bfd *, bfd_boolean));
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static void cris_elf_final_write_processing PARAMS ((bfd *, bfd_boolean));
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static bfd_boolean cris_elf_set_mach_from_flags
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static bfd_boolean cris_elf_set_mach_from_flags
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PARAMS ((bfd *, unsigned long int));
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PARAMS ((bfd *, unsigned long int));
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static bfd_boolean cris_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
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static bfd_boolean cris_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
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static bfd_boolean cris_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
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static bfd_boolean cris_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
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static bfd_boolean cris_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
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static bfd_boolean cris_elf_copy_private_bfd_data PARAMS ((bfd *, bfd *));
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struct elf_cris_link_hash_entry;
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struct elf_cris_link_hash_entry;
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static bfd_boolean elf_cris_discard_excess_dso_dynamics
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static bfd_boolean elf_cris_discard_excess_dso_dynamics
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PARAMS ((struct elf_cris_link_hash_entry *, PTR));
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PARAMS ((struct elf_cris_link_hash_entry *, PTR));
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static bfd_boolean elf_cris_discard_excess_program_dynamics
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static bfd_boolean elf_cris_discard_excess_program_dynamics
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PARAMS ((struct elf_cris_link_hash_entry *, PTR));
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PARAMS ((struct elf_cris_link_hash_entry *, PTR));
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static bfd_boolean elf_cris_adjust_gotplt_to_got
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static bfd_boolean elf_cris_adjust_gotplt_to_got
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PARAMS ((struct elf_cris_link_hash_entry *, PTR));
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PARAMS ((struct elf_cris_link_hash_entry *, PTR));
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static bfd_boolean elf_cris_try_fold_plt_to_got
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static bfd_boolean elf_cris_try_fold_plt_to_got
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PARAMS ((struct elf_cris_link_hash_entry *, PTR));
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PARAMS ((struct elf_cris_link_hash_entry *, PTR));
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static struct bfd_hash_entry *elf_cris_link_hash_newfunc
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static struct bfd_hash_entry *elf_cris_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_cris_link_hash_table_create
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static struct bfd_link_hash_table *elf_cris_link_hash_table_create
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PARAMS ((bfd *));
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PARAMS ((bfd *));
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static bfd_boolean elf_cris_adjust_dynamic_symbol
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static bfd_boolean elf_cris_adjust_dynamic_symbol
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PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
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PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
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static bfd_boolean cris_elf_check_relocs
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static bfd_boolean cris_elf_check_relocs
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PARAMS ((bfd *, struct bfd_link_info *, asection *,
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PARAMS ((bfd *, struct bfd_link_info *, asection *,
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const Elf_Internal_Rela *));
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const Elf_Internal_Rela *));
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static bfd_boolean elf_cris_size_dynamic_sections
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static bfd_boolean elf_cris_size_dynamic_sections
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PARAMS ((bfd *, struct bfd_link_info *));
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PARAMS ((bfd *, struct bfd_link_info *));
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static bfd_boolean elf_cris_finish_dynamic_symbol
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static bfd_boolean elf_cris_finish_dynamic_symbol
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PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
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PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
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Elf_Internal_Sym *));
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Elf_Internal_Sym *));
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static bfd_boolean elf_cris_finish_dynamic_sections
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static bfd_boolean elf_cris_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 void elf_cris_hide_symbol
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static void elf_cris_hide_symbol
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PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean));
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PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean));
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static enum elf_reloc_type_class elf_cris_reloc_type_class
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static enum elf_reloc_type_class elf_cris_reloc_type_class
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PARAMS ((const Elf_Internal_Rela *));
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PARAMS ((const Elf_Internal_Rela *));
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static reloc_howto_type cris_elf_howto_table [] =
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static reloc_howto_type cris_elf_howto_table [] =
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{
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{
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/* This reloc does nothing. */
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/* This reloc does nothing. */
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HOWTO (R_CRIS_NONE, /* type */
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HOWTO (R_CRIS_NONE, /* 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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32, /* bitsize */
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32, /* 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_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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bfd_elf_generic_reloc, /* special_function */
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"R_CRIS_NONE", /* name */
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"R_CRIS_NONE", /* 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), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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/* An 8 bit absolute relocation. */
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/* An 8 bit absolute relocation. */
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HOWTO (R_CRIS_8, /* type */
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HOWTO (R_CRIS_8, /* type */
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0, /* rightshift */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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8, /* 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_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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bfd_elf_generic_reloc, /* special_function */
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"R_CRIS_8", /* name */
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"R_CRIS_8", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x0000, /* src_mask */
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0x0000, /* src_mask */
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0x00ff, /* dst_mask */
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0x00ff, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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/* A 16 bit absolute relocation. */
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/* A 16 bit absolute relocation. */
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HOWTO (R_CRIS_16, /* type */
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HOWTO (R_CRIS_16, /* type */
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0, /* rightshift */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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16, /* 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_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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bfd_elf_generic_reloc, /* special_function */
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"R_CRIS_16", /* name */
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"R_CRIS_16", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x00000000, /* src_mask */
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0x00000000, /* src_mask */
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0x0000ffff, /* dst_mask */
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0x0000ffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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/* A 32 bit absolute relocation. */
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/* A 32 bit absolute relocation. */
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HOWTO (R_CRIS_32, /* type */
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HOWTO (R_CRIS_32, /* 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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32, /* bitsize */
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32, /* 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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/* We don't want overflow complaints for 64-bit vma builds
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/* We don't want overflow complaints for 64-bit vma builds
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for e.g. sym+0x40000000 (or actually sym-0xc0000000 in
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for e.g. sym+0x40000000 (or actually sym-0xc0000000 in
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32-bit ELF) where sym=0xc0001234.
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32-bit ELF) where sym=0xc0001234.
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Don't do this for the PIC relocs, as we don't expect to
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Don't do this for the PIC relocs, as we don't expect to
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see them with large offsets. */
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see them with large offsets. */
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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_generic_reloc, /* special_function */
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bfd_elf_generic_reloc, /* special_function */
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"R_CRIS_32", /* name */
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"R_CRIS_32", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x00000000, /* src_mask */
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0x00000000, /* src_mask */
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0xffffffff, /* dst_mask */
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0xffffffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
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/* An 8 bit PC-relative relocation. */
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/* An 8 bit PC-relative relocation. */
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HOWTO (R_CRIS_8_PCREL, /* type */
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HOWTO (R_CRIS_8_PCREL, /* type */
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0, /* rightshift */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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8, /* bitsize */
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TRUE, /* pc_relative */
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TRUE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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cris_elf_pcrel_reloc, /* special_function */
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cris_elf_pcrel_reloc, /* special_function */
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"R_CRIS_8_PCREL", /* name */
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"R_CRIS_8_PCREL", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x0000, /* src_mask */
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0x0000, /* src_mask */
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0x00ff, /* dst_mask */
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0x00ff, /* dst_mask */
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TRUE), /* pcrel_offset */
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TRUE), /* pcrel_offset */
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/* A 16 bit PC-relative relocation. */
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/* A 16 bit PC-relative relocation. */
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HOWTO (R_CRIS_16_PCREL, /* type */
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HOWTO (R_CRIS_16_PCREL, /* type */
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0, /* rightshift */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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16, /* bitsize */
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TRUE, /* pc_relative */
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TRUE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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cris_elf_pcrel_reloc, /* special_function */
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cris_elf_pcrel_reloc, /* special_function */
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"R_CRIS_16_PCREL", /* name */
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"R_CRIS_16_PCREL", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
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0x00000000, /* src_mask */
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0x00000000, /* src_mask */
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0x0000ffff, /* dst_mask */
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0x0000ffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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TRUE), /* pcrel_offset */
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/* A 32 bit PC-relative relocation. */
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/* A 32 bit PC-relative relocation. */
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HOWTO (R_CRIS_32_PCREL, /* type */
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HOWTO (R_CRIS_32_PCREL, /* 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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32, /* bitsize */
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32, /* bitsize */
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TRUE, /* pc_relative */
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TRUE, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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complain_overflow_bitfield, /* complain_on_overflow */
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cris_elf_pcrel_reloc, /* special_function */
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cris_elf_pcrel_reloc, /* special_function */
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"R_CRIS_32_PCREL", /* name */
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"R_CRIS_32_PCREL", /* name */
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FALSE, /* partial_inplace */
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FALSE, /* partial_inplace */
|
0x00000000, /* src_mask */
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0x00000000, /* src_mask */
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0xffffffff, /* dst_mask */
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0xffffffff, /* dst_mask */
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TRUE), /* pcrel_offset */
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TRUE), /* pcrel_offset */
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|
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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_CRIS_GNU_VTINHERIT, /* type */
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HOWTO (R_CRIS_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) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* bitsize */
|
0, /* bitsize */
|
FALSE, /* pc_relative */
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FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_dont, /* complain_on_overflow */
|
complain_overflow_dont, /* complain_on_overflow */
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NULL, /* special_function */
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NULL, /* special_function */
|
"R_CRIS_GNU_VTINHERIT", /* name */
|
"R_CRIS_GNU_VTINHERIT", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
|
|
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/* GNU extension to record C++ vtable member usage. */
|
/* GNU extension to record C++ vtable member usage. */
|
HOWTO (R_CRIS_GNU_VTENTRY, /* type */
|
HOWTO (R_CRIS_GNU_VTENTRY, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* bitsize */
|
0, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_dont, /* complain_on_overflow */
|
complain_overflow_dont, /* complain_on_overflow */
|
_bfd_elf_rel_vtable_reloc_fn, /* special_function */
|
_bfd_elf_rel_vtable_reloc_fn, /* special_function */
|
"R_CRIS_GNU_VTENTRY", /* name */
|
"R_CRIS_GNU_VTENTRY", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
FALSE), /* pcrel_offset */
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FALSE), /* pcrel_offset */
|
|
|
/* This is used only by the dynamic linker. The symbol should exist
|
/* This is used only by the dynamic linker. The symbol should exist
|
both in the object being run and in some shared library. The
|
both in the object being run and in some shared library. The
|
dynamic linker copies the data addressed by the symbol from the
|
dynamic linker copies the data addressed by the symbol from the
|
shared library into the object, because the object being
|
shared library into the object, because the object being
|
run has to have the data at some particular address. */
|
run has to have the data at some particular address. */
|
HOWTO (R_CRIS_COPY, /* type */
|
HOWTO (R_CRIS_COPY, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_CRIS_COPY", /* name */
|
"R_CRIS_COPY", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
/* Like R_CRIS_32, but used when setting global offset table entries. */
|
/* Like R_CRIS_32, but used when setting global offset table entries. */
|
HOWTO (R_CRIS_GLOB_DAT, /* type */
|
HOWTO (R_CRIS_GLOB_DAT, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_CRIS_GLOB_DAT", /* name */
|
"R_CRIS_GLOB_DAT", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
/* Marks a procedure linkage table entry for a symbol. */
|
/* Marks a procedure linkage table entry for a symbol. */
|
HOWTO (R_CRIS_JUMP_SLOT, /* type */
|
HOWTO (R_CRIS_JUMP_SLOT, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_CRIS_JUMP_SLOT", /* name */
|
"R_CRIS_JUMP_SLOT", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
/* Used only by the dynamic linker. When the object is run, this
|
/* Used only by the dynamic linker. When the object is run, this
|
longword is set to the load address of the object, plus the
|
longword is set to the load address of the object, plus the
|
addend. */
|
addend. */
|
HOWTO (R_CRIS_RELATIVE, /* type */
|
HOWTO (R_CRIS_RELATIVE, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_CRIS_RELATIVE", /* name */
|
"R_CRIS_RELATIVE", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
/* Like R_CRIS_32, but referring to the GOT table entry for the symbol. */
|
/* Like R_CRIS_32, but referring to the GOT table entry for the symbol. */
|
HOWTO (R_CRIS_16_GOT, /* type */
|
HOWTO (R_CRIS_16_GOT, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
16, /* bitsize */
|
16, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_CRIS_16_GOT", /* name */
|
"R_CRIS_16_GOT", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0xffff, /* dst_mask */
|
0xffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
HOWTO (R_CRIS_32_GOT, /* type */
|
HOWTO (R_CRIS_32_GOT, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_CRIS_32_GOT", /* name */
|
"R_CRIS_32_GOT", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
/* Like R_CRIS_32_GOT, but referring to (and requesting a) PLT part of
|
/* Like R_CRIS_32_GOT, but referring to (and requesting a) PLT part of
|
the GOT table for the symbol. */
|
the GOT table for the symbol. */
|
HOWTO (R_CRIS_16_GOTPLT, /* type */
|
HOWTO (R_CRIS_16_GOTPLT, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
16, /* bitsize */
|
16, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_CRIS_16_GOTPLT", /* name */
|
"R_CRIS_16_GOTPLT", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0xffff, /* dst_mask */
|
0xffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
HOWTO (R_CRIS_32_GOTPLT, /* type */
|
HOWTO (R_CRIS_32_GOTPLT, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_CRIS_32_GOTPLT", /* name */
|
"R_CRIS_32_GOTPLT", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
/* A 32-bit offset from GOT to (local const) symbol: no GOT entry should
|
/* A 32-bit offset from GOT to (local const) symbol: no GOT entry should
|
be necessary. */
|
be necessary. */
|
HOWTO (R_CRIS_32_GOTREL, /* type */
|
HOWTO (R_CRIS_32_GOTREL, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_CRIS_32_GOTREL", /* name */
|
"R_CRIS_32_GOTREL", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
/* A 32-bit offset from GOT to entry for this symbol in PLT and request
|
/* A 32-bit offset from GOT to entry for this symbol in PLT and request
|
to create PLT entry for symbol. */
|
to create PLT entry for symbol. */
|
HOWTO (R_CRIS_32_PLT_GOTREL, /* type */
|
HOWTO (R_CRIS_32_PLT_GOTREL, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
FALSE, /* pc_relative */
|
FALSE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
bfd_elf_generic_reloc, /* special_function */
|
bfd_elf_generic_reloc, /* special_function */
|
"R_CRIS_32_PLT_GOTREL", /* name */
|
"R_CRIS_32_PLT_GOTREL", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
FALSE), /* pcrel_offset */
|
FALSE), /* pcrel_offset */
|
|
|
/* A 32-bit offset from PC (location after the relocation) + addend to
|
/* A 32-bit offset from PC (location after the relocation) + addend to
|
entry for this symbol in PLT and request to create PLT entry for
|
entry for this symbol in PLT and request to create PLT entry for
|
symbol. */
|
symbol. */
|
HOWTO (R_CRIS_32_PLT_PCREL, /* type */
|
HOWTO (R_CRIS_32_PLT_PCREL, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
32, /* bitsize */
|
32, /* bitsize */
|
TRUE, /* pc_relative */
|
TRUE, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
complain_overflow_bitfield, /* complain_on_overflow */
|
cris_elf_pcrel_reloc, /* special_function */
|
cris_elf_pcrel_reloc, /* special_function */
|
"R_CRIS_32_PLT_PCREL", /* name */
|
"R_CRIS_32_PLT_PCREL", /* name */
|
FALSE, /* partial_inplace */
|
FALSE, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0xffffffff, /* dst_mask */
|
0xffffffff, /* dst_mask */
|
TRUE) /* pcrel_offset */
|
TRUE) /* pcrel_offset */
|
};
|
};
|
|
|
/* Map BFD reloc types to CRIS ELF reloc types. */
|
/* Map BFD reloc types to CRIS ELF reloc types. */
|
|
|
struct cris_reloc_map
|
struct cris_reloc_map
|
{
|
{
|
bfd_reloc_code_real_type bfd_reloc_val;
|
bfd_reloc_code_real_type bfd_reloc_val;
|
unsigned int cris_reloc_val;
|
unsigned int cris_reloc_val;
|
};
|
};
|
|
|
static const struct cris_reloc_map cris_reloc_map [] =
|
static const struct cris_reloc_map cris_reloc_map [] =
|
{
|
{
|
{ BFD_RELOC_NONE, R_CRIS_NONE },
|
{ BFD_RELOC_NONE, R_CRIS_NONE },
|
{ BFD_RELOC_8, R_CRIS_8 },
|
{ BFD_RELOC_8, R_CRIS_8 },
|
{ BFD_RELOC_16, R_CRIS_16 },
|
{ BFD_RELOC_16, R_CRIS_16 },
|
{ BFD_RELOC_32, R_CRIS_32 },
|
{ BFD_RELOC_32, R_CRIS_32 },
|
{ BFD_RELOC_8_PCREL, R_CRIS_8_PCREL },
|
{ BFD_RELOC_8_PCREL, R_CRIS_8_PCREL },
|
{ BFD_RELOC_16_PCREL, R_CRIS_16_PCREL },
|
{ BFD_RELOC_16_PCREL, R_CRIS_16_PCREL },
|
{ BFD_RELOC_32_PCREL, R_CRIS_32_PCREL },
|
{ BFD_RELOC_32_PCREL, R_CRIS_32_PCREL },
|
{ BFD_RELOC_VTABLE_INHERIT, R_CRIS_GNU_VTINHERIT },
|
{ BFD_RELOC_VTABLE_INHERIT, R_CRIS_GNU_VTINHERIT },
|
{ BFD_RELOC_VTABLE_ENTRY, R_CRIS_GNU_VTENTRY },
|
{ BFD_RELOC_VTABLE_ENTRY, R_CRIS_GNU_VTENTRY },
|
{ BFD_RELOC_CRIS_COPY, R_CRIS_COPY },
|
{ BFD_RELOC_CRIS_COPY, R_CRIS_COPY },
|
{ BFD_RELOC_CRIS_GLOB_DAT, R_CRIS_GLOB_DAT },
|
{ BFD_RELOC_CRIS_GLOB_DAT, R_CRIS_GLOB_DAT },
|
{ BFD_RELOC_CRIS_JUMP_SLOT, R_CRIS_JUMP_SLOT },
|
{ BFD_RELOC_CRIS_JUMP_SLOT, R_CRIS_JUMP_SLOT },
|
{ BFD_RELOC_CRIS_RELATIVE, R_CRIS_RELATIVE },
|
{ BFD_RELOC_CRIS_RELATIVE, R_CRIS_RELATIVE },
|
{ BFD_RELOC_CRIS_16_GOT, R_CRIS_16_GOT },
|
{ BFD_RELOC_CRIS_16_GOT, R_CRIS_16_GOT },
|
{ BFD_RELOC_CRIS_32_GOT, R_CRIS_32_GOT },
|
{ BFD_RELOC_CRIS_32_GOT, R_CRIS_32_GOT },
|
{ BFD_RELOC_CRIS_16_GOTPLT, R_CRIS_16_GOTPLT },
|
{ BFD_RELOC_CRIS_16_GOTPLT, R_CRIS_16_GOTPLT },
|
{ BFD_RELOC_CRIS_32_GOTPLT, R_CRIS_32_GOTPLT },
|
{ BFD_RELOC_CRIS_32_GOTPLT, R_CRIS_32_GOTPLT },
|
{ BFD_RELOC_CRIS_32_GOTREL, R_CRIS_32_GOTREL },
|
{ BFD_RELOC_CRIS_32_GOTREL, R_CRIS_32_GOTREL },
|
{ BFD_RELOC_CRIS_32_PLT_GOTREL, R_CRIS_32_PLT_GOTREL },
|
{ BFD_RELOC_CRIS_32_PLT_GOTREL, R_CRIS_32_PLT_GOTREL },
|
{ BFD_RELOC_CRIS_32_PLT_PCREL, R_CRIS_32_PLT_PCREL }
|
{ BFD_RELOC_CRIS_32_PLT_PCREL, R_CRIS_32_PLT_PCREL }
|
};
|
};
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
cris_reloc_type_lookup (abfd, code)
|
cris_reloc_type_lookup (abfd, code)
|
bfd * abfd ATTRIBUTE_UNUSED;
|
bfd * abfd ATTRIBUTE_UNUSED;
|
bfd_reloc_code_real_type code;
|
bfd_reloc_code_real_type code;
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
|
|
for (i = 0; i < sizeof (cris_reloc_map) / sizeof (cris_reloc_map[0]); i++)
|
for (i = 0; i < sizeof (cris_reloc_map) / sizeof (cris_reloc_map[0]); i++)
|
if (cris_reloc_map [i].bfd_reloc_val == code)
|
if (cris_reloc_map [i].bfd_reloc_val == code)
|
return & cris_elf_howto_table [cris_reloc_map[i].cris_reloc_val];
|
return & cris_elf_howto_table [cris_reloc_map[i].cris_reloc_val];
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
cris_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
|
cris_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
|
{
|
{
|
unsigned int i;
|
unsigned int i;
|
|
|
for (i = 0;
|
for (i = 0;
|
i < sizeof (cris_elf_howto_table) / sizeof (cris_elf_howto_table[0]);
|
i < sizeof (cris_elf_howto_table) / sizeof (cris_elf_howto_table[0]);
|
i++)
|
i++)
|
if (cris_elf_howto_table[i].name != NULL
|
if (cris_elf_howto_table[i].name != NULL
|
&& strcasecmp (cris_elf_howto_table[i].name, r_name) == 0)
|
&& strcasecmp (cris_elf_howto_table[i].name, r_name) == 0)
|
return &cris_elf_howto_table[i];
|
return &cris_elf_howto_table[i];
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Set the howto pointer for an CRIS ELF reloc. */
|
/* Set the howto pointer for an CRIS ELF reloc. */
|
|
|
static void
|
static void
|
cris_info_to_howto_rela (abfd, cache_ptr, dst)
|
cris_info_to_howto_rela (abfd, cache_ptr, dst)
|
bfd * abfd ATTRIBUTE_UNUSED;
|
bfd * abfd ATTRIBUTE_UNUSED;
|
arelent * cache_ptr;
|
arelent * cache_ptr;
|
Elf_Internal_Rela * dst;
|
Elf_Internal_Rela * dst;
|
{
|
{
|
unsigned int r_type;
|
unsigned int r_type;
|
|
|
r_type = ELF32_R_TYPE (dst->r_info);
|
r_type = ELF32_R_TYPE (dst->r_info);
|
BFD_ASSERT (r_type < (unsigned int) R_CRIS_max);
|
BFD_ASSERT (r_type < (unsigned int) R_CRIS_max);
|
cache_ptr->howto = & cris_elf_howto_table [r_type];
|
cache_ptr->howto = & cris_elf_howto_table [r_type];
|
}
|
}
|
|
|
bfd_reloc_status_type
|
bfd_reloc_status_type
|
cris_elf_pcrel_reloc (abfd, reloc_entry, symbol, data, input_section,
|
cris_elf_pcrel_reloc (abfd, reloc_entry, symbol, data, input_section,
|
output_bfd, error_message)
|
output_bfd, error_message)
|
bfd *abfd ATTRIBUTE_UNUSED;
|
bfd *abfd ATTRIBUTE_UNUSED;
|
arelent *reloc_entry;
|
arelent *reloc_entry;
|
asymbol *symbol;
|
asymbol *symbol;
|
PTR data ATTRIBUTE_UNUSED;
|
PTR data ATTRIBUTE_UNUSED;
|
asection *input_section;
|
asection *input_section;
|
bfd *output_bfd;
|
bfd *output_bfd;
|
char **error_message ATTRIBUTE_UNUSED;
|
char **error_message ATTRIBUTE_UNUSED;
|
{
|
{
|
/* By default (using only bfd_elf_generic_reloc when linking to
|
/* By default (using only bfd_elf_generic_reloc when linking to
|
non-ELF formats) PC-relative relocs are relative to the beginning
|
non-ELF formats) PC-relative relocs are relative to the beginning
|
of the reloc. CRIS PC-relative relocs are relative to the position
|
of the reloc. CRIS PC-relative relocs are relative to the position
|
*after* the reloc because that's what pre-CRISv32 PC points to
|
*after* the reloc because that's what pre-CRISv32 PC points to
|
after reading an insn field with that reloc. (For CRISv32, PC is
|
after reading an insn field with that reloc. (For CRISv32, PC is
|
actually relative to the start of the insn, but we keep the old
|
actually relative to the start of the insn, but we keep the old
|
definition.) Still, we use as much generic machinery as we can.
|
definition.) Still, we use as much generic machinery as we can.
|
|
|
Only adjust when doing a final link. */
|
Only adjust when doing a final link. */
|
if (output_bfd == (bfd *) NULL)
|
if (output_bfd == (bfd *) NULL)
|
reloc_entry->addend -= 1 << reloc_entry->howto->size;
|
reloc_entry->addend -= 1 << reloc_entry->howto->size;
|
|
|
return
|
return
|
bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
|
bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
|
input_section, output_bfd, error_message);
|
input_section, output_bfd, error_message);
|
}
|
}
|
|
|
/* Support for core dump NOTE sections.
|
/* Support for core dump NOTE sections.
|
The slightly unintuitive code layout is an attempt to keep at least
|
The slightly unintuitive code layout is an attempt to keep at least
|
some similarities with other ports, hoping to simplify general
|
some similarities with other ports, hoping to simplify general
|
changes, while still keeping Linux/CRIS and Linux/CRISv32 code apart. */
|
changes, while still keeping Linux/CRIS and Linux/CRISv32 code apart. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
cris_elf_grok_prstatus (abfd, note)
|
cris_elf_grok_prstatus (abfd, note)
|
bfd *abfd;
|
bfd *abfd;
|
Elf_Internal_Note *note;
|
Elf_Internal_Note *note;
|
{
|
{
|
int offset;
|
int offset;
|
size_t size;
|
size_t size;
|
|
|
if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
|
if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
|
switch (note->descsz)
|
switch (note->descsz)
|
{
|
{
|
default:
|
default:
|
return FALSE;
|
return FALSE;
|
|
|
case 202: /* Linux/CRISv32 */
|
case 202: /* Linux/CRISv32 */
|
/* pr_cursig */
|
/* pr_cursig */
|
elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
|
elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
|
|
|
/* pr_pid */
|
/* pr_pid */
|
elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
|
elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
|
|
|
/* pr_reg */
|
/* pr_reg */
|
offset = 70;
|
offset = 70;
|
size = 128;
|
size = 128;
|
|
|
break;
|
break;
|
}
|
}
|
else
|
else
|
switch (note->descsz)
|
switch (note->descsz)
|
{
|
{
|
default:
|
default:
|
return FALSE;
|
return FALSE;
|
|
|
case 214: /* Linux/CRIS */
|
case 214: /* Linux/CRIS */
|
/* pr_cursig */
|
/* pr_cursig */
|
elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
|
elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
|
|
|
/* pr_pid */
|
/* pr_pid */
|
elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
|
elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
|
|
|
/* pr_reg */
|
/* pr_reg */
|
offset = 70;
|
offset = 70;
|
size = 140;
|
size = 140;
|
|
|
break;
|
break;
|
}
|
}
|
|
|
/* Make a ".reg/999" section. */
|
/* Make a ".reg/999" section. */
|
return _bfd_elfcore_make_pseudosection (abfd, ".reg",
|
return _bfd_elfcore_make_pseudosection (abfd, ".reg",
|
size, note->descpos + offset);
|
size, note->descpos + offset);
|
}
|
}
|
|
|
static bfd_boolean
|
static bfd_boolean
|
cris_elf_grok_psinfo (abfd, note)
|
cris_elf_grok_psinfo (abfd, note)
|
bfd *abfd;
|
bfd *abfd;
|
Elf_Internal_Note *note;
|
Elf_Internal_Note *note;
|
{
|
{
|
if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
|
if (bfd_get_mach (abfd) == bfd_mach_cris_v32)
|
switch (note->descsz)
|
switch (note->descsz)
|
{
|
{
|
default:
|
default:
|
return FALSE;
|
return FALSE;
|
|
|
case 124: /* Linux/CRISv32 elf_prpsinfo */
|
case 124: /* Linux/CRISv32 elf_prpsinfo */
|
elf_tdata (abfd)->core_program
|
elf_tdata (abfd)->core_program
|
= _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
|
= _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
|
elf_tdata (abfd)->core_command
|
elf_tdata (abfd)->core_command
|
= _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
|
= _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
|
}
|
}
|
else
|
else
|
switch (note->descsz)
|
switch (note->descsz)
|
{
|
{
|
default:
|
default:
|
return FALSE;
|
return FALSE;
|
|
|
case 124: /* Linux/CRIS elf_prpsinfo */
|
case 124: /* Linux/CRIS elf_prpsinfo */
|
elf_tdata (abfd)->core_program
|
elf_tdata (abfd)->core_program
|
= _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
|
= _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
|
elf_tdata (abfd)->core_command
|
elf_tdata (abfd)->core_command
|
= _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
|
= _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
|
}
|
}
|
|
|
/* Note that for some reason, a spurious space is tacked
|
/* Note that for some reason, a spurious space is tacked
|
onto the end of the args in some (at least one anyway)
|
onto the end of the args in some (at least one anyway)
|
implementations, so strip it off if it exists. */
|
implementations, so strip it off if it exists. */
|
|
|
{
|
{
|
char *command = elf_tdata (abfd)->core_command;
|
char *command = elf_tdata (abfd)->core_command;
|
int n = strlen (command);
|
int n = strlen (command);
|
|
|
if (0 < n && command[n - 1] == ' ')
|
if (0 < n && command[n - 1] == ' ')
|
command[n - 1] = '\0';
|
command[n - 1] = '\0';
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* 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 "/lib/ld.so.1"
|
#define ELF_DYNAMIC_INTERPRETER "/lib/ld.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
|
#define PLT_ENTRY_SIZE_V32 26
|
#define PLT_ENTRY_SIZE_V32 26
|
|
|
/* The first entry in an absolute procedure linkage table looks like this. */
|
/* The first entry in an absolute procedure linkage table looks like this. */
|
|
|
static const bfd_byte elf_cris_plt0_entry[PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_cris_plt0_entry[PLT_ENTRY_SIZE] =
|
{
|
{
|
0xfc, 0xe1,
|
0xfc, 0xe1,
|
0x7e, 0x7e, /* push mof. */
|
0x7e, 0x7e, /* push mof. */
|
0x7f, 0x0d, /* (dip [pc+]) */
|
0x7f, 0x0d, /* (dip [pc+]) */
|
0, 0, 0, 0, /* Replaced with address of .got + 4. */
|
0, 0, 0, 0, /* Replaced with address of .got + 4. */
|
0x30, 0x7a, /* move [...],mof */
|
0x30, 0x7a, /* move [...],mof */
|
0x7f, 0x0d, /* (dip [pc+]) */
|
0x7f, 0x0d, /* (dip [pc+]) */
|
0, 0, 0, 0, /* Replaced with address of .got + 8. */
|
0, 0, 0, 0, /* Replaced with address of .got + 8. */
|
0x30, 0x09 /* jump [...] */
|
0x30, 0x09 /* jump [...] */
|
};
|
};
|
|
|
static const bfd_byte elf_cris_plt0_entry_v32[PLT_ENTRY_SIZE_V32] =
|
static const bfd_byte elf_cris_plt0_entry_v32[PLT_ENTRY_SIZE_V32] =
|
{
|
{
|
0x84, 0xe2, /* subq 4,$sp */
|
0x84, 0xe2, /* subq 4,$sp */
|
0x6f, 0xfe, /* move.d 0,$acr */
|
0x6f, 0xfe, /* move.d 0,$acr */
|
0, 0, 0, 0, /* Replaced by address of .got + 4. */
|
0, 0, 0, 0, /* Replaced by address of .got + 4. */
|
0x7e, 0x7a, /* move $mof,[$sp] */
|
0x7e, 0x7a, /* move $mof,[$sp] */
|
0x3f, 0x7a, /* move [$acr],$mof */
|
0x3f, 0x7a, /* move [$acr],$mof */
|
0x04, 0xf2, /* addq 4,acr */
|
0x04, 0xf2, /* addq 4,acr */
|
0x6f, 0xfa, /* move.d [$acr],$acr */
|
0x6f, 0xfa, /* move.d [$acr],$acr */
|
0xbf, 0x09, /* jump $acr */
|
0xbf, 0x09, /* jump $acr */
|
0xb0, 0x05, /* nop */
|
0xb0, 0x05, /* nop */
|
0, 0 /* Pad out to 26 bytes. */
|
0, 0 /* Pad out to 26 bytes. */
|
};
|
};
|
|
|
/* Subsequent entries in an absolute procedure linkage table look like
|
/* Subsequent entries in an absolute procedure linkage table look like
|
this. */
|
this. */
|
|
|
static const bfd_byte elf_cris_plt_entry[PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_cris_plt_entry[PLT_ENTRY_SIZE] =
|
{
|
{
|
0x7f, 0x0d, /* (dip [pc+]) */
|
0x7f, 0x0d, /* (dip [pc+]) */
|
0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
|
0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
|
0x30, 0x09, /* jump [...] */
|
0x30, 0x09, /* jump [...] */
|
0x3f, 0x7e, /* move [pc+],mof */
|
0x3f, 0x7e, /* move [pc+],mof */
|
0, 0, 0, 0, /* Replaced with offset into relocation table. */
|
0, 0, 0, 0, /* Replaced with offset into relocation table. */
|
0x2f, 0xfe, /* add.d [pc+],pc */
|
0x2f, 0xfe, /* add.d [pc+],pc */
|
0xec, 0xff,
|
0xec, 0xff,
|
0xff, 0xff /* Replaced with offset to start of .plt. */
|
0xff, 0xff /* Replaced with offset to start of .plt. */
|
};
|
};
|
|
|
static const bfd_byte elf_cris_plt_entry_v32[PLT_ENTRY_SIZE_V32] =
|
static const bfd_byte elf_cris_plt_entry_v32[PLT_ENTRY_SIZE_V32] =
|
{
|
{
|
0x6f, 0xfe, /* move.d 0,$acr */
|
0x6f, 0xfe, /* move.d 0,$acr */
|
0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
|
0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
|
0x6f, 0xfa, /* move.d [$acr],$acr */
|
0x6f, 0xfa, /* move.d [$acr],$acr */
|
0xbf, 0x09, /* jump $acr */
|
0xbf, 0x09, /* jump $acr */
|
0xb0, 0x05, /* nop */
|
0xb0, 0x05, /* nop */
|
0x3f, 0x7e, /* move 0,mof */
|
0x3f, 0x7e, /* move 0,mof */
|
0, 0, 0, 0, /* Replaced with offset into relocation table. */
|
0, 0, 0, 0, /* Replaced with offset into relocation table. */
|
0xbf, 0x0e, /* ba start_of_plt0_entry */
|
0xbf, 0x0e, /* ba start_of_plt0_entry */
|
0, 0, 0, 0, /* Replaced with offset to plt0 entry. */
|
0, 0, 0, 0, /* Replaced with offset to plt0 entry. */
|
0xb0, 0x05 /* nop */
|
0xb0, 0x05 /* nop */
|
};
|
};
|
|
|
/* The first entry in a PIC procedure linkage table looks like this. */
|
/* The first entry in a PIC procedure linkage table looks like this. */
|
|
|
static const bfd_byte elf_cris_pic_plt0_entry[PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_cris_pic_plt0_entry[PLT_ENTRY_SIZE] =
|
{
|
{
|
0xfc, 0xe1, 0x7e, 0x7e, /* push mof */
|
0xfc, 0xe1, 0x7e, 0x7e, /* push mof */
|
0x04, 0x01, 0x30, 0x7a, /* move [r0+4],mof */
|
0x04, 0x01, 0x30, 0x7a, /* move [r0+4],mof */
|
0x08, 0x01, 0x30, 0x09, /* jump [r0+8] */
|
0x08, 0x01, 0x30, 0x09, /* jump [r0+8] */
|
0, 0, 0, 0, 0, 0, 0, 0, /* Pad out to 20 bytes. */
|
0, 0, 0, 0, 0, 0, 0, 0, /* Pad out to 20 bytes. */
|
};
|
};
|
|
|
static const bfd_byte elf_cris_pic_plt0_entry_v32[PLT_ENTRY_SIZE_V32] =
|
static const bfd_byte elf_cris_pic_plt0_entry_v32[PLT_ENTRY_SIZE_V32] =
|
{
|
{
|
0x84, 0xe2, /* subq 4,$sp */
|
0x84, 0xe2, /* subq 4,$sp */
|
0x04, 0x01, /* addoq 4,$r0,$acr */
|
0x04, 0x01, /* addoq 4,$r0,$acr */
|
0x7e, 0x7a, /* move $mof,[$sp] */
|
0x7e, 0x7a, /* move $mof,[$sp] */
|
0x3f, 0x7a, /* move [$acr],$mof */
|
0x3f, 0x7a, /* move [$acr],$mof */
|
0x04, 0xf2, /* addq 4,$acr */
|
0x04, 0xf2, /* addq 4,$acr */
|
0x6f, 0xfa, /* move.d [$acr],$acr */
|
0x6f, 0xfa, /* move.d [$acr],$acr */
|
0xbf, 0x09, /* jump $acr */
|
0xbf, 0x09, /* jump $acr */
|
0xb0, 0x05, /* nop */
|
0xb0, 0x05, /* nop */
|
0, 0, /* Pad out to 26 bytes. */
|
0, 0, /* Pad out to 26 bytes. */
|
0, 0, 0, 0,
|
0, 0, 0, 0,
|
0, 0, 0, 0
|
0, 0, 0, 0
|
};
|
};
|
|
|
/* Subsequent entries in a PIC procedure linkage table look like this. */
|
/* Subsequent entries in a PIC procedure linkage table look like this. */
|
|
|
static const bfd_byte elf_cris_pic_plt_entry[PLT_ENTRY_SIZE] =
|
static const bfd_byte elf_cris_pic_plt_entry[PLT_ENTRY_SIZE] =
|
{
|
{
|
0x6f, 0x0d, /* (bdap [pc+].d,r0) */
|
0x6f, 0x0d, /* (bdap [pc+].d,r0) */
|
0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
|
0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
|
0x30, 0x09, /* jump [...] */
|
0x30, 0x09, /* jump [...] */
|
0x3f, 0x7e, /* move [pc+],mof */
|
0x3f, 0x7e, /* move [pc+],mof */
|
0, 0, 0, 0, /* Replaced with offset into relocation table. */
|
0, 0, 0, 0, /* Replaced with offset into relocation table. */
|
0x2f, 0xfe, /* add.d [pc+],pc */
|
0x2f, 0xfe, /* add.d [pc+],pc */
|
0xec, 0xff, /* Replaced with offset to start of .plt. */
|
0xec, 0xff, /* Replaced with offset to start of .plt. */
|
0xff, 0xff
|
0xff, 0xff
|
};
|
};
|
|
|
static const bfd_byte elf_cris_pic_plt_entry_v32[PLT_ENTRY_SIZE_V32] =
|
static const bfd_byte elf_cris_pic_plt_entry_v32[PLT_ENTRY_SIZE_V32] =
|
{
|
{
|
0x6f, 0x0d, /* addo.d 0,$r0,$acr */
|
0x6f, 0x0d, /* addo.d 0,$r0,$acr */
|
0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
|
0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
|
0x6f, 0xfa, /* move.d [$acr],$acr */
|
0x6f, 0xfa, /* move.d [$acr],$acr */
|
0xbf, 0x09, /* jump $acr */
|
0xbf, 0x09, /* jump $acr */
|
0xb0, 0x05, /* nop */
|
0xb0, 0x05, /* nop */
|
0x3f, 0x7e, /* move relocoffs,$mof */
|
0x3f, 0x7e, /* move relocoffs,$mof */
|
0, 0, 0, 0, /* Replaced with offset into relocation table. */
|
0, 0, 0, 0, /* Replaced with offset into relocation table. */
|
0xbf, 0x0e, /* ba start_of_plt */
|
0xbf, 0x0e, /* ba start_of_plt */
|
0, 0, 0, 0, /* Replaced with offset to start of .plt. */
|
0, 0, 0, 0, /* Replaced with offset to start of .plt. */
|
0xb0, 0x05 /* nop */
|
0xb0, 0x05 /* nop */
|
};
|
};
|
|
|
/* We copy elf32-m68k.c and elf32-i386.c for the basic linker hash bits
|
/* We copy elf32-m68k.c and elf32-i386.c for the basic linker hash bits
|
(and most other PIC/shlib stuff). Check that we don't drift away
|
(and most other PIC/shlib stuff). Check that we don't drift away
|
without reason.
|
without reason.
|
|
|
The CRIS linker, like the m68k and i386 linkers (and probably the rest
|
The CRIS linker, like the m68k and i386 linkers (and probably the rest
|
too) needs to keep track of the number of relocs that it decides to
|
too) 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 can discard
|
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 with
|
PC relative relocs if it doesn't need them when linking with
|
-Bsymbolic. We store the information in a field extending the regular
|
-Bsymbolic. We store the information in a field extending the regular
|
ELF linker hash table. */
|
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_cris_pcrel_relocs_copied
|
struct elf_cris_pcrel_relocs_copied
|
{
|
{
|
/* Next section. */
|
/* Next section. */
|
struct elf_cris_pcrel_relocs_copied *next;
|
struct elf_cris_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;
|
};
|
};
|
|
|
/* CRIS ELF linker hash entry. */
|
/* CRIS ELF linker hash entry. */
|
|
|
struct elf_cris_link_hash_entry
|
struct elf_cris_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_cris_pcrel_relocs_copied *pcrel_relocs_copied;
|
struct elf_cris_pcrel_relocs_copied *pcrel_relocs_copied;
|
|
|
/* The GOTPLT references are CRIS-specific; the goal is to avoid having
|
/* The GOTPLT references are CRIS-specific; the goal is to avoid having
|
both a general GOT and a PLT-specific GOT entry for the same symbol,
|
both a general GOT and a PLT-specific GOT entry for the same symbol,
|
when it is referenced both as a function and as a function pointer.
|
when it is referenced both as a function and as a function pointer.
|
|
|
Number of GOTPLT references for a function. */
|
Number of GOTPLT references for a function. */
|
bfd_signed_vma gotplt_refcount;
|
bfd_signed_vma gotplt_refcount;
|
|
|
/* Actual GOTPLT index for this symbol, if applicable, or zero if not
|
/* Actual GOTPLT index for this symbol, if applicable, or zero if not
|
(zero is never used as an index). FIXME: We should be able to fold
|
(zero is never used as an index). FIXME: We should be able to fold
|
this with gotplt_refcount in a union, like the got and plt unions in
|
this with gotplt_refcount in a union, like the got and plt unions in
|
elf_link_hash_entry. */
|
elf_link_hash_entry. */
|
bfd_size_type gotplt_offset;
|
bfd_size_type gotplt_offset;
|
};
|
};
|
|
|
/* CRIS ELF linker hash table. */
|
/* CRIS ELF linker hash table. */
|
|
|
struct elf_cris_link_hash_table
|
struct elf_cris_link_hash_table
|
{
|
{
|
struct elf_link_hash_table root;
|
struct elf_link_hash_table root;
|
|
|
/* We can't use the PLT offset and calculate to get the GOTPLT offset,
|
/* We can't use the PLT offset and calculate to get the GOTPLT offset,
|
since we try and avoid creating GOTPLT:s when there's already a GOT.
|
since we try and avoid creating GOTPLT:s when there's already a GOT.
|
Instead, we keep and update the next available index here. */
|
Instead, we keep and update the next available index here. */
|
bfd_size_type next_gotplt_entry;
|
bfd_size_type next_gotplt_entry;
|
};
|
};
|
|
|
/* Traverse a CRIS ELF linker hash table. */
|
/* Traverse a CRIS ELF linker hash table. */
|
|
|
#define elf_cris_link_hash_traverse(table, func, info) \
|
#define elf_cris_link_hash_traverse(table, func, info) \
|
(elf_link_hash_traverse \
|
(elf_link_hash_traverse \
|
(&(table)->root, \
|
(&(table)->root, \
|
(bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
|
(bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
|
(info)))
|
(info)))
|
|
|
/* Get the CRIS ELF linker hash table from a link_info structure. */
|
/* Get the CRIS ELF linker hash table from a link_info structure. */
|
|
|
#define elf_cris_hash_table(p) \
|
#define elf_cris_hash_table(p) \
|
((struct elf_cris_link_hash_table *) (p)->hash)
|
((struct elf_cris_link_hash_table *) (p)->hash)
|
|
|
/* Create an entry in a CRIS ELF linker hash table. */
|
/* Create an entry in a CRIS ELF linker hash table. */
|
|
|
static struct bfd_hash_entry *
|
static struct bfd_hash_entry *
|
elf_cris_link_hash_newfunc (entry, table, string)
|
elf_cris_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_cris_link_hash_entry *ret =
|
struct elf_cris_link_hash_entry *ret =
|
(struct elf_cris_link_hash_entry *) entry;
|
(struct elf_cris_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_cris_link_hash_entry *) NULL)
|
if (ret == (struct elf_cris_link_hash_entry *) NULL)
|
ret = ((struct elf_cris_link_hash_entry *)
|
ret = ((struct elf_cris_link_hash_entry *)
|
bfd_hash_allocate (table,
|
bfd_hash_allocate (table,
|
sizeof (struct elf_cris_link_hash_entry)));
|
sizeof (struct elf_cris_link_hash_entry)));
|
if (ret == (struct elf_cris_link_hash_entry *) NULL)
|
if (ret == (struct elf_cris_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_cris_link_hash_entry *)
|
ret = ((struct elf_cris_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_cris_link_hash_entry *) NULL)
|
if (ret != (struct elf_cris_link_hash_entry *) NULL)
|
{
|
{
|
ret->pcrel_relocs_copied = NULL;
|
ret->pcrel_relocs_copied = NULL;
|
ret->gotplt_refcount = 0;
|
ret->gotplt_refcount = 0;
|
ret->gotplt_offset = 0;
|
ret->gotplt_offset = 0;
|
}
|
}
|
|
|
return (struct bfd_hash_entry *) ret;
|
return (struct bfd_hash_entry *) ret;
|
}
|
}
|
|
|
/* Create a CRIS ELF linker hash table. */
|
/* Create a CRIS ELF linker hash table. */
|
|
|
static struct bfd_link_hash_table *
|
static struct bfd_link_hash_table *
|
elf_cris_link_hash_table_create (abfd)
|
elf_cris_link_hash_table_create (abfd)
|
bfd *abfd;
|
bfd *abfd;
|
{
|
{
|
struct elf_cris_link_hash_table *ret;
|
struct elf_cris_link_hash_table *ret;
|
bfd_size_type amt = sizeof (struct elf_cris_link_hash_table);
|
bfd_size_type amt = sizeof (struct elf_cris_link_hash_table);
|
|
|
ret = ((struct elf_cris_link_hash_table *) bfd_malloc (amt));
|
ret = ((struct elf_cris_link_hash_table *) bfd_malloc (amt));
|
if (ret == (struct elf_cris_link_hash_table *) NULL)
|
if (ret == (struct elf_cris_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_cris_link_hash_newfunc,
|
elf_cris_link_hash_newfunc,
|
sizeof (struct elf_cris_link_hash_entry)))
|
sizeof (struct elf_cris_link_hash_entry)))
|
{
|
{
|
free (ret);
|
free (ret);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Initialize to skip over the first three entries in the gotplt; they
|
/* Initialize to skip over the first three entries in the gotplt; they
|
are used for run-time symbol evaluation. */
|
are used for run-time symbol evaluation. */
|
ret->next_gotplt_entry = 12;
|
ret->next_gotplt_entry = 12;
|
|
|
return &ret->root.root;
|
return &ret->root.root;
|
}
|
}
|
|
|
/* Perform a single relocation. By default we use the standard BFD
|
/* Perform a single relocation. By default we use the standard BFD
|
routines, with a few tweaks. */
|
routines, with a few tweaks. */
|
|
|
static bfd_reloc_status_type
|
static bfd_reloc_status_type
|
cris_final_link_relocate (howto, input_bfd, input_section, contents, rel,
|
cris_final_link_relocate (howto, input_bfd, input_section, contents, rel,
|
relocation)
|
relocation)
|
reloc_howto_type * howto;
|
reloc_howto_type * howto;
|
bfd * input_bfd;
|
bfd * input_bfd;
|
asection * input_section;
|
asection * input_section;
|
bfd_byte * contents;
|
bfd_byte * contents;
|
Elf_Internal_Rela * rel;
|
Elf_Internal_Rela * rel;
|
bfd_vma relocation;
|
bfd_vma relocation;
|
{
|
{
|
bfd_reloc_status_type r;
|
bfd_reloc_status_type r;
|
|
|
/* PC-relative relocations are relative to the position *after*
|
/* PC-relative relocations are relative to the position *after*
|
the reloc. Note that for R_CRIS_8_PCREL the adjustment is
|
the reloc. Note that for R_CRIS_8_PCREL the adjustment is
|
not a single byte, since PC must be 16-bit-aligned. */
|
not a single byte, since PC must be 16-bit-aligned. */
|
switch (ELF32_R_TYPE (rel->r_info))
|
switch (ELF32_R_TYPE (rel->r_info))
|
{
|
{
|
/* Check that the 16-bit GOT relocs are positive. */
|
/* Check that the 16-bit GOT relocs are positive. */
|
case R_CRIS_16_GOTPLT:
|
case R_CRIS_16_GOTPLT:
|
case R_CRIS_16_GOT:
|
case R_CRIS_16_GOT:
|
if ((bfd_signed_vma) relocation < 0)
|
if ((bfd_signed_vma) relocation < 0)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
break;
|
break;
|
|
|
case R_CRIS_32_PLT_PCREL:
|
case R_CRIS_32_PLT_PCREL:
|
case R_CRIS_32_PCREL:
|
case R_CRIS_32_PCREL:
|
relocation -= 2;
|
relocation -= 2;
|
/* Fall through. */
|
/* Fall through. */
|
case R_CRIS_8_PCREL:
|
case R_CRIS_8_PCREL:
|
case R_CRIS_16_PCREL:
|
case R_CRIS_16_PCREL:
|
relocation -= 2;
|
relocation -= 2;
|
break;
|
break;
|
|
|
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);
|
return r;
|
return r;
|
}
|
}
|
|
|
/* Relocate an CRIS ELF section. See elf32-fr30.c, from where this was
|
/* Relocate an CRIS ELF section. See elf32-fr30.c, from where this was
|
copied, for further comments. */
|
copied, for further comments. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
|
cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
|
contents, relocs, local_syms, local_sections)
|
contents, relocs, local_syms, local_sections)
|
bfd *output_bfd ATTRIBUTE_UNUSED;
|
bfd *output_bfd ATTRIBUTE_UNUSED;
|
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;
|
local_got_offsets = elf_local_got_offsets (input_bfd);
|
local_got_offsets = elf_local_got_offsets (input_bfd);
|
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);
|
relend = relocs + input_section->reloc_count;
|
relend = relocs + input_section->reloc_count;
|
|
|
sgot = NULL;
|
sgot = NULL;
|
splt = NULL;
|
splt = NULL;
|
sreloc = NULL;
|
sreloc = NULL;
|
|
|
if (dynobj != NULL)
|
if (dynobj != NULL)
|
{
|
{
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
}
|
}
|
|
|
for (rel = relocs; rel < relend; rel ++)
|
for (rel = relocs; rel < relend; rel ++)
|
{
|
{
|
reloc_howto_type *howto;
|
reloc_howto_type *howto;
|
unsigned long r_symndx;
|
unsigned long r_symndx;
|
Elf_Internal_Sym *sym;
|
Elf_Internal_Sym *sym;
|
asection *sec;
|
asection *sec;
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
bfd_vma relocation;
|
bfd_vma relocation;
|
bfd_reloc_status_type r;
|
bfd_reloc_status_type r;
|
const char *symname = NULL;
|
const char *symname = NULL;
|
int r_type;
|
int r_type;
|
|
|
r_type = ELF32_R_TYPE (rel->r_info);
|
r_type = ELF32_R_TYPE (rel->r_info);
|
|
|
if ( r_type == R_CRIS_GNU_VTINHERIT
|
if ( r_type == R_CRIS_GNU_VTINHERIT
|
|| r_type == R_CRIS_GNU_VTENTRY)
|
|| r_type == R_CRIS_GNU_VTENTRY)
|
continue;
|
continue;
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
howto = cris_elf_howto_table + r_type;
|
howto = cris_elf_howto_table + r_type;
|
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 = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
|
|
symname = (bfd_elf_string_from_elf_section
|
symname = (bfd_elf_string_from_elf_section
|
(input_bfd, symtab_hdr->sh_link, sym->st_name));
|
(input_bfd, symtab_hdr->sh_link, sym->st_name));
|
if (symname == NULL)
|
if (symname == NULL)
|
symname = bfd_section_name (input_bfd, sec);
|
symname = bfd_section_name (input_bfd, sec);
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_boolean warned;
|
bfd_boolean warned;
|
bfd_boolean unresolved_reloc;
|
bfd_boolean unresolved_reloc;
|
|
|
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
r_symndx, symtab_hdr, sym_hashes,
|
r_symndx, symtab_hdr, sym_hashes,
|
h, sec, relocation,
|
h, sec, relocation,
|
unresolved_reloc, warned);
|
unresolved_reloc, warned);
|
|
|
if (unresolved_reloc
|
if (unresolved_reloc
|
/* Perhaps we should detect the cases that
|
/* Perhaps we should detect the cases that
|
sec->output_section is expected to be NULL like i386 and
|
sec->output_section is expected to be NULL like i386 and
|
m68k, but apparently (and according to elfxx-ia64.c) all
|
m68k, but apparently (and according to elfxx-ia64.c) all
|
valid cases are where the symbol is defined in a shared
|
valid cases are where the symbol is defined in a shared
|
object which we link dynamically against. This includes
|
object which we link dynamically against. This includes
|
PLT relocs for which we've created a PLT entry and other
|
PLT relocs for which we've created a PLT entry and other
|
relocs for which we're prepared to create dynamic
|
relocs for which we're prepared to create dynamic
|
relocations.
|
relocations.
|
|
|
For now, new situations cause us to just err when
|
For now, new situations cause us to just err when
|
sec->output_offset is NULL but the object with the symbol
|
sec->output_offset is NULL but the object with the symbol
|
is *not* dynamically linked against. Thus this will
|
is *not* dynamically linked against. Thus this will
|
automatically remind us so we can see if there are other
|
automatically remind us so we can see if there are other
|
valid cases we need to revisit. */
|
valid cases we need to revisit. */
|
&& (sec->owner->flags & DYNAMIC) != 0)
|
&& (sec->owner->flags & DYNAMIC) != 0)
|
relocation = 0;
|
relocation = 0;
|
|
|
else if (h->root.type == bfd_link_hash_defined
|
else if (h->root.type == bfd_link_hash_defined
|
|| h->root.type == bfd_link_hash_defweak)
|
|| h->root.type == bfd_link_hash_defweak)
|
{
|
{
|
/* Here follow the cases where the relocation value must
|
/* Here follow the cases where the relocation value must
|
be zero (or when further handling is simplified when
|
be zero (or when further handling is simplified when
|
zero). I can't claim to understand the various
|
zero). I can't claim to understand the various
|
conditions and they weren't described in the files
|
conditions and they weren't described in the files
|
where I copied them from (elf32-m68k.c and
|
where I copied them from (elf32-m68k.c and
|
elf32-i386.c), but let's mention examples of where
|
elf32-i386.c), but let's mention examples of where
|
they happen. FIXME: Perhaps define and use a
|
they happen. FIXME: Perhaps define and use a
|
dynamic_symbol_p function like ia64.
|
dynamic_symbol_p function like ia64.
|
|
|
- When creating a shared library, we can have an
|
- When creating a shared library, we can have an
|
ordinary relocation for a symbol defined in a shared
|
ordinary relocation for a symbol defined in a shared
|
library (perhaps the one we create). We then make
|
library (perhaps the one we create). We then make
|
the relocation value zero, as the value seen now will
|
the relocation value zero, as the value seen now will
|
be added into the relocation addend in this shared
|
be added into the relocation addend in this shared
|
library, but must be handled only at dynamic-link
|
library, but must be handled only at dynamic-link
|
time. FIXME: Not sure this example covers the
|
time. FIXME: Not sure this example covers the
|
h->elf_link_hash_flags test, though it's there in
|
h->elf_link_hash_flags test, though it's there in
|
other targets. */
|
other targets. */
|
if (info->shared
|
if (info->shared
|
&& ((! info->symbolic && h->dynindx != -1)
|
&& ((! info->symbolic && h->dynindx != -1)
|
|| !h->def_regular)
|
|| !h->def_regular)
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& (r_type == R_CRIS_8
|
&& (r_type == R_CRIS_8
|
|| r_type == R_CRIS_16
|
|| r_type == R_CRIS_16
|
|| r_type == R_CRIS_32
|
|| r_type == R_CRIS_32
|
|| r_type == R_CRIS_8_PCREL
|
|| r_type == R_CRIS_8_PCREL
|
|| r_type == R_CRIS_16_PCREL
|
|| r_type == R_CRIS_16_PCREL
|
|| r_type == R_CRIS_32_PCREL))
|
|| r_type == R_CRIS_32_PCREL))
|
relocation = 0;
|
relocation = 0;
|
else if (!info->relocatable && unresolved_reloc)
|
else if (!info->relocatable && unresolved_reloc)
|
{
|
{
|
_bfd_error_handler
|
_bfd_error_handler
|
(_("%B, section %A: unresolvable relocation %s against symbol `%s'"),
|
(_("%B, section %A: unresolvable relocation %s against symbol `%s'"),
|
input_bfd,
|
input_bfd,
|
input_section,
|
input_section,
|
cris_elf_howto_table[r_type].name,
|
cris_elf_howto_table[r_type].name,
|
symname);
|
symname);
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
if (sec != NULL && elf_discarded_section (sec))
|
if (sec != NULL && elf_discarded_section (sec))
|
{
|
{
|
/* For relocs against symbols from removed linkonce sections,
|
/* For relocs against symbols from removed linkonce sections,
|
or sections discarded by a linker script, we just want the
|
or sections discarded by a linker script, we just want the
|
section contents zeroed. Avoid any special processing. */
|
section contents zeroed. Avoid any special processing. */
|
_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
|
_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
|
rel->r_info = 0;
|
rel->r_info = 0;
|
rel->r_addend = 0;
|
rel->r_addend = 0;
|
continue;
|
continue;
|
}
|
}
|
|
|
if (info->relocatable)
|
if (info->relocatable)
|
continue;
|
continue;
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case R_CRIS_16_GOTPLT:
|
case R_CRIS_16_GOTPLT:
|
case R_CRIS_32_GOTPLT:
|
case R_CRIS_32_GOTPLT:
|
/* This is like the case for R_CRIS_32_GOT and R_CRIS_16_GOT,
|
/* This is like the case for R_CRIS_32_GOT and R_CRIS_16_GOT,
|
but we require a PLT, and the PLT handling will take care of
|
but we require a PLT, and the PLT handling will take care of
|
filling in the PLT-specific GOT entry. For the GOT offset,
|
filling in the PLT-specific GOT entry. For the GOT offset,
|
calculate it as we do when filling it in for the .got.plt
|
calculate it as we do when filling it in for the .got.plt
|
section. If we don't have a PLT, punt to GOT handling. */
|
section. If we don't have a PLT, punt to GOT handling. */
|
if (h != NULL
|
if (h != NULL
|
&& ((struct elf_cris_link_hash_entry *) h)->gotplt_offset != 0)
|
&& ((struct elf_cris_link_hash_entry *) h)->gotplt_offset != 0)
|
{
|
{
|
asection *sgotplt
|
asection *sgotplt
|
= bfd_get_section_by_name (dynobj, ".got.plt");
|
= bfd_get_section_by_name (dynobj, ".got.plt");
|
bfd_vma got_offset;
|
bfd_vma got_offset;
|
|
|
BFD_ASSERT (h->dynindx != -1);
|
BFD_ASSERT (h->dynindx != -1);
|
BFD_ASSERT (sgotplt != NULL);
|
BFD_ASSERT (sgotplt != NULL);
|
|
|
got_offset
|
got_offset
|
= ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
|
= ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
|
|
|
relocation = got_offset;
|
relocation = got_offset;
|
break;
|
break;
|
}
|
}
|
|
|
/* We didn't make a PLT entry for this symbol. Maybe everything is
|
/* We didn't make a PLT entry for this symbol. Maybe everything is
|
folded into the GOT. Other than folding, this happens when
|
folded into the GOT. Other than folding, this happens when
|
statically linking PIC code, or when using -Bsymbolic. Check
|
statically linking PIC code, or when using -Bsymbolic. Check
|
that we instead have a GOT entry as done for us by
|
that we instead have a GOT entry as done for us by
|
elf_cris_adjust_dynamic_symbol, and drop through into the
|
elf_cris_adjust_dynamic_symbol, and drop through into the
|
ordinary GOT cases. This must not happen for the
|
ordinary GOT cases. This must not happen for the
|
executable, because any reference it does to a function
|
executable, because any reference it does to a function
|
that is satisfied by a DSO must generate a PLT. We assume
|
that is satisfied by a DSO must generate a PLT. We assume
|
these call-specific relocs don't address non-functions. */
|
these call-specific relocs don't address non-functions. */
|
if (h != NULL
|
if (h != NULL
|
&& (h->got.offset == (bfd_vma) -1
|
&& (h->got.offset == (bfd_vma) -1
|
|| (!info->shared
|
|| (!info->shared
|
&& !(h->def_regular
|
&& !(h->def_regular
|
|| (!h->def_dynamic
|
|| (!h->def_dynamic
|
&& h->root.type == bfd_link_hash_undefweak)))))
|
&& h->root.type == bfd_link_hash_undefweak)))))
|
{
|
{
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
((h->got.offset == (bfd_vma) -1)
|
((h->got.offset == (bfd_vma) -1)
|
? _("%B, section %A: No PLT nor GOT for relocation %s"
|
? _("%B, section %A: No PLT nor GOT for relocation %s"
|
" against symbol `%s'")
|
" against symbol `%s'")
|
: _("%B, section %A: No PLT for relocation %s"
|
: _("%B, section %A: No PLT for relocation %s"
|
" against symbol `%s'"),
|
" against symbol `%s'"),
|
input_bfd,
|
input_bfd,
|
input_section,
|
input_section,
|
cris_elf_howto_table[r_type].name,
|
cris_elf_howto_table[r_type].name,
|
(symname != NULL && symname[0] != '\0'
|
(symname != NULL && symname[0] != '\0'
|
? symname : _("[whose name is lost]")));
|
? symname : _("[whose name is lost]")));
|
|
|
/* FIXME: Perhaps blaming input is not the right thing to
|
/* FIXME: Perhaps blaming input is not the right thing to
|
do; this is probably an internal error. But it is true
|
do; this is probably an internal error. But it is true
|
that we didn't like that particular input. */
|
that we didn't like that particular input. */
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
/* Fall through. */
|
/* Fall through. */
|
|
|
/* The size of the actual relocation is not used here; we only
|
/* The size of the actual relocation is not used here; we only
|
fill in the GOT table here. */
|
fill in the GOT table here. */
|
case R_CRIS_16_GOT:
|
case R_CRIS_16_GOT:
|
case R_CRIS_32_GOT:
|
case R_CRIS_32_GOT:
|
{
|
{
|
bfd_vma off;
|
bfd_vma off;
|
|
|
/* Note that despite using RELA relocations, the .got contents
|
/* Note that despite using RELA relocations, the .got contents
|
is always filled in with the link-relative relocation
|
is always filled in with the link-relative relocation
|
value; the addend. */
|
value; the addend. */
|
|
|
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
|
&& (h->def_regular
|
&& (h->def_regular
|
|| h->type == STT_FUNC
|
|| h->type == STT_FUNC
|
|| h->needs_plt))
|
|| h->needs_plt))
|
|| (info->shared
|
|| (info->shared
|
&& (info->symbolic || h->dynindx == -1)
|
&& (info->symbolic || h->dynindx == -1)
|
&& h->def_regular))
|
&& h->def_regular))
|
{
|
{
|
/* This wasn't checked above for ! info->shared, but
|
/* This wasn't checked above for ! info->shared, but
|
must hold there if we get here; the symbol must
|
must hold there if we get here; the symbol must
|
be defined in the regular program or be undefweak
|
be defined in the regular program or be undefweak
|
or be a function or otherwise need a PLT. */
|
or be a function or otherwise need a PLT. */
|
BFD_ASSERT (!elf_hash_table (info)->dynamic_sections_created
|
BFD_ASSERT (!elf_hash_table (info)->dynamic_sections_created
|
|| info->shared
|
|| info->shared
|
|| h->def_regular
|
|| h->def_regular
|
|| h->type == STT_FUNC
|
|| h->type == STT_FUNC
|
|| h->needs_plt
|
|| h->needs_plt
|
|| h->root.type == bfd_link_hash_undefweak);
|
|| h->root.type == bfd_link_hash_undefweak);
|
|
|
/* 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 locally,
|
-Bsymbolic link and the symbol is defined locally,
|
or is undefweak, or the symbol was forced to be
|
or is undefweak, or the symbol was forced to be
|
local because of a version file, or we're not
|
local because of a version file, or we're not
|
creating a dynamic object. We must initialize this
|
creating a dynamic object. We must initialize this
|
entry in the global offset table. Since the offset
|
entry in the global offset table. Since the offset
|
must always be a multiple of 4, we use the least
|
must always be a multiple of 4, we use the least
|
significant bit to record whether we have
|
significant bit to record whether we have
|
initialized it already.
|
initialized it already.
|
|
|
If this GOT entry should be runtime-initialized, we
|
If this GOT entry should be runtime-initialized, we
|
will create a .rela.got relocation entry to
|
will create a .rela.got relocation entry to
|
initialize the value. This is done in the
|
initialize the value. This is done in the
|
finish_dynamic_symbol routine. */
|
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 *s;
|
asection *s;
|
Elf_Internal_Rela outrel;
|
Elf_Internal_Rela outrel;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
|
|
s = bfd_get_section_by_name (dynobj, ".rela.got");
|
s = bfd_get_section_by_name (dynobj, ".rela.got");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
|
|
outrel.r_offset = (sgot->output_section->vma
|
outrel.r_offset = (sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ off);
|
+ off);
|
outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
|
outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
|
outrel.r_addend = relocation;
|
outrel.r_addend = relocation;
|
loc = s->contents;
|
loc = s->contents;
|
loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
|
loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
|
}
|
}
|
|
|
local_got_offsets[r_symndx] |= 1;
|
local_got_offsets[r_symndx] |= 1;
|
}
|
}
|
}
|
}
|
|
|
relocation = sgot->output_offset + off;
|
relocation = sgot->output_offset + off;
|
if (rel->r_addend != 0)
|
if (rel->r_addend != 0)
|
{
|
{
|
/* We can't do anything for a relocation which is against
|
/* We can't do anything for a relocation which is against
|
a symbol *plus offset*. GOT holds relocations for
|
a symbol *plus offset*. GOT holds relocations for
|
symbols. Make this an error; the compiler isn't
|
symbols. Make this an error; the compiler isn't
|
allowed to pass us these kinds of things. */
|
allowed to pass us these kinds of things. */
|
if (h == NULL)
|
if (h == NULL)
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B, section %A: relocation %s with non-zero addend %d"
|
(_("%B, section %A: relocation %s with non-zero addend %d"
|
" against local symbol"),
|
" against local symbol"),
|
input_bfd,
|
input_bfd,
|
input_section,
|
input_section,
|
cris_elf_howto_table[r_type].name,
|
cris_elf_howto_table[r_type].name,
|
rel->r_addend);
|
rel->r_addend);
|
else
|
else
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B, section %A: relocation %s with non-zero addend %d"
|
(_("%B, section %A: relocation %s with non-zero addend %d"
|
" against symbol `%s'"),
|
" against symbol `%s'"),
|
input_bfd,
|
input_bfd,
|
input_section,
|
input_section,
|
cris_elf_howto_table[r_type].name,
|
cris_elf_howto_table[r_type].name,
|
rel->r_addend,
|
rel->r_addend,
|
symname[0] != '\0' ? symname : _("[whose name is lost]"));
|
symname[0] != '\0' ? symname : _("[whose name is lost]"));
|
|
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
break;
|
break;
|
|
|
case R_CRIS_32_GOTREL:
|
case R_CRIS_32_GOTREL:
|
/* This relocation must only be performed against local symbols.
|
/* This relocation must only be performed against local symbols.
|
It's also ok when we link a program and the symbol is either
|
It's also ok when we link a program and the symbol is either
|
defined in an ordinary (non-DSO) object or is undefined weak. */
|
defined in an ordinary (non-DSO) object or is undefined weak. */
|
if (h != NULL
|
if (h != NULL
|
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
&& !(!info->shared
|
&& !(!info->shared
|
&& (h->def_regular
|
&& (h->def_regular
|
|| (!h->def_dynamic
|
|| (!h->def_dynamic
|
&& h->root.type == bfd_link_hash_undefweak))))
|
&& h->root.type == bfd_link_hash_undefweak))))
|
{
|
{
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B, section %A: relocation %s is"
|
(_("%B, section %A: relocation %s is"
|
" not allowed for global symbol: `%s'"),
|
" not allowed for global symbol: `%s'"),
|
input_bfd,
|
input_bfd,
|
input_section,
|
input_section,
|
cris_elf_howto_table[r_type].name,
|
cris_elf_howto_table[r_type].name,
|
symname);
|
symname);
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
/* This can happen if we get a link error with the input ELF
|
/* This can happen if we get a link error with the input ELF
|
variant mismatching the output variant. Emit an error so
|
variant mismatching the output variant. Emit an error so
|
it's noticed if it happens elsewhere. */
|
it's noticed if it happens elsewhere. */
|
if (sgot == NULL)
|
if (sgot == NULL)
|
{
|
{
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B, section %A: relocation %s with no GOT created"),
|
(_("%B, section %A: relocation %s with no GOT created"),
|
input_bfd,
|
input_bfd,
|
input_section,
|
input_section,
|
cris_elf_howto_table[r_type].name);
|
cris_elf_howto_table[r_type].name);
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
/* This relocation is like a PC-relative one, except the
|
/* This relocation is like a PC-relative one, except the
|
reference point is the location of GOT. Note that
|
reference point is the location of GOT. Note that
|
sgot->output_offset is not involved in this calculation. We
|
sgot->output_offset is not involved in this calculation. We
|
always want the start of entire .got section, not the
|
always want the start of entire .got section, not the
|
position after the reserved header. */
|
position after the reserved header. */
|
relocation -= sgot->output_section->vma;
|
relocation -= sgot->output_section->vma;
|
break;
|
break;
|
|
|
case R_CRIS_32_PLT_PCREL:
|
case R_CRIS_32_PLT_PCREL:
|
/* 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 PLT_PCREL reloc against a local symbol directly,
|
/* Resolve a PLT_PCREL reloc against a local symbol directly,
|
without using the procedure linkage table. */
|
without using the procedure linkage table. */
|
if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
break;
|
break;
|
|
|
if (h->plt.offset == (bfd_vma) -1
|
if (h->plt.offset == (bfd_vma) -1
|
|| splt == NULL)
|
|| splt == NULL)
|
{
|
{
|
/* 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;
|
}
|
}
|
|
|
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_CRIS_32_PLT_GOTREL:
|
case R_CRIS_32_PLT_GOTREL:
|
/* Like R_CRIS_32_PLT_PCREL, but the reference point is the
|
/* Like R_CRIS_32_PLT_PCREL, but the reference point is the
|
start of the .got section. See also comment at
|
start of the .got section. See also comment at
|
R_CRIS_32_GOT. */
|
R_CRIS_32_GOT. */
|
relocation -= sgot->output_section->vma;
|
relocation -= sgot->output_section->vma;
|
|
|
/* Resolve a PLT_GOTREL reloc against a local symbol directly,
|
/* Resolve a PLT_GOTREL reloc against a local symbol directly,
|
without using the procedure linkage table. */
|
without using the procedure linkage table. */
|
if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
break;
|
break;
|
|
|
if (h->plt.offset == (bfd_vma) -1
|
if (h->plt.offset == (bfd_vma) -1
|
|| splt == NULL)
|
|| splt == NULL)
|
{
|
{
|
/* 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;
|
}
|
}
|
|
|
relocation = (splt->output_section->vma
|
relocation = (splt->output_section->vma
|
+ splt->output_offset
|
+ splt->output_offset
|
+ h->plt.offset
|
+ h->plt.offset
|
- sgot->output_section->vma);
|
- sgot->output_section->vma);
|
break;
|
break;
|
|
|
case R_CRIS_8_PCREL:
|
case R_CRIS_8_PCREL:
|
case R_CRIS_16_PCREL:
|
case R_CRIS_16_PCREL:
|
case R_CRIS_32_PCREL:
|
case R_CRIS_32_PCREL:
|
/* If the symbol was local, we need no shlib-specific handling. */
|
/* If the symbol was local, we need no shlib-specific handling. */
|
if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
break;
|
break;
|
|
|
/* Fall through. */
|
/* Fall through. */
|
case R_CRIS_8:
|
case R_CRIS_8:
|
case R_CRIS_16:
|
case R_CRIS_16:
|
case R_CRIS_32:
|
case R_CRIS_32:
|
if (info->shared
|
if (info->shared
|
&& r_symndx != 0
|
&& r_symndx != 0
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& (input_section->flags & SEC_ALLOC) != 0
|
&& ((r_type != R_CRIS_8_PCREL
|
&& ((r_type != R_CRIS_8_PCREL
|
&& r_type != R_CRIS_16_PCREL
|
&& r_type != R_CRIS_16_PCREL
|
&& r_type != R_CRIS_32_PCREL)
|
&& r_type != R_CRIS_32_PCREL)
|
|| (!info->symbolic
|
|| (!info->symbolic
|
|| !h->def_regular)))
|
|| !h->def_regular)))
|
{
|
{
|
Elf_Internal_Rela outrel;
|
Elf_Internal_Rela outrel;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
bfd_boolean skip, relocate;
|
bfd_boolean skip, relocate;
|
|
|
/* When generating a shared object, these relocations
|
/* When generating a shared object, these relocations
|
are copied into the output file to be resolved at run
|
are copied into the output file to be resolved at run
|
time. */
|
time. */
|
|
|
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 (CONST_STRNEQ (name, ".rela")
|
BFD_ASSERT (CONST_STRNEQ (name, ".rela")
|
&& 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);
|
|
|
/* That section should have been created in
|
/* That section should have been created in
|
cris_elf_check_relocs, but that function will not be
|
cris_elf_check_relocs, but that function will not be
|
called for objects which fail in
|
called for objects which fail in
|
cris_elf_merge_private_bfd_data. */
|
cris_elf_merge_private_bfd_data. */
|
if (sreloc == NULL)
|
if (sreloc == NULL)
|
{
|
{
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B: Internal inconsistency; no relocation section %s"),
|
(_("%B: Internal inconsistency; no relocation section %s"),
|
input_bfd,
|
input_bfd,
|
name);
|
name);
|
|
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
|
|
skip = FALSE;
|
skip = FALSE;
|
relocate = FALSE;
|
relocate = FALSE;
|
|
|
outrel.r_offset =
|
outrel.r_offset =
|
_bfd_elf_section_offset (output_bfd, info, input_section,
|
_bfd_elf_section_offset (output_bfd, info, input_section,
|
rel->r_offset);
|
rel->r_offset);
|
if (outrel.r_offset == (bfd_vma) -1)
|
if (outrel.r_offset == (bfd_vma) -1)
|
skip = TRUE;
|
skip = TRUE;
|
else if (outrel.r_offset == (bfd_vma) -2)
|
else if (outrel.r_offset == (bfd_vma) -2)
|
skip = TRUE, relocate = TRUE;
|
skip = TRUE, relocate = TRUE;
|
outrel.r_offset += (input_section->output_section->vma
|
outrel.r_offset += (input_section->output_section->vma
|
+ input_section->output_offset);
|
+ input_section->output_offset);
|
|
|
if (skip)
|
if (skip)
|
memset (&outrel, 0, sizeof outrel);
|
memset (&outrel, 0, sizeof outrel);
|
/* 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->def_regular))
|
|| !h->def_regular))
|
{
|
{
|
BFD_ASSERT (h->dynindx != -1);
|
BFD_ASSERT (h->dynindx != -1);
|
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
|
{
|
{
|
outrel.r_addend = relocation + rel->r_addend;
|
outrel.r_addend = relocation + rel->r_addend;
|
|
|
if (r_type == R_CRIS_32)
|
if (r_type == R_CRIS_32)
|
{
|
{
|
relocate = TRUE;
|
relocate = TRUE;
|
outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
|
outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
|
}
|
}
|
else
|
else
|
{
|
{
|
long indx;
|
long indx;
|
|
|
if (bfd_is_abs_section (sec))
|
if (bfd_is_abs_section (sec))
|
indx = 0;
|
indx = 0;
|
else if (sec == NULL || sec->owner == NULL)
|
else if (sec == NULL || sec->owner == NULL)
|
{
|
{
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
else
|
else
|
{
|
{
|
asection *osec;
|
asection *osec;
|
|
|
/* We are turning this relocation into one
|
/* We are turning this relocation into one
|
against a section symbol. It would be
|
against a section symbol. It would be
|
proper to subtract the symbol's value,
|
proper to subtract the symbol's value,
|
osec->vma, from the emitted reloc addend,
|
osec->vma, from the emitted reloc addend,
|
but ld.so expects buggy relocs. */
|
but ld.so expects buggy relocs. */
|
osec = sec->output_section;
|
osec = sec->output_section;
|
indx = elf_section_data (osec)->dynindx;
|
indx = elf_section_data (osec)->dynindx;
|
if (indx == 0)
|
if (indx == 0)
|
{
|
{
|
struct elf_cris_link_hash_table *htab;
|
struct elf_cris_link_hash_table *htab;
|
htab = elf_cris_hash_table (info);
|
htab = elf_cris_hash_table (info);
|
osec = htab->root.text_index_section;
|
osec = htab->root.text_index_section;
|
indx = elf_section_data (osec)->dynindx;
|
indx = elf_section_data (osec)->dynindx;
|
}
|
}
|
BFD_ASSERT (indx != 0);
|
BFD_ASSERT (indx != 0);
|
}
|
}
|
|
|
outrel.r_info = ELF32_R_INFO (indx, r_type);
|
outrel.r_info = ELF32_R_INFO (indx, r_type);
|
}
|
}
|
}
|
}
|
|
|
loc = sreloc->contents;
|
loc = sreloc->contents;
|
loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
|
loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
|
|
|
/* This reloc will be computed at runtime, so there's no
|
/* This reloc will be computed at runtime, so there's no
|
need to do anything now, except for R_CRIS_32 relocations
|
need to do anything now, except for R_CRIS_32 relocations
|
that have been turned into R_CRIS_RELATIVE. */
|
that have been turned into R_CRIS_RELATIVE. */
|
if (!relocate)
|
if (!relocate)
|
continue;
|
continue;
|
}
|
}
|
|
|
break;
|
break;
|
}
|
}
|
|
|
r = cris_final_link_relocate (howto, input_bfd, input_section,
|
r = cris_final_link_relocate (howto, input_bfd, input_section,
|
contents, rel, relocation);
|
contents, rel, relocation);
|
|
|
if (r != bfd_reloc_ok)
|
if (r != bfd_reloc_ok)
|
{
|
{
|
const char * msg = (const char *) NULL;
|
const char * msg = (const char *) NULL;
|
|
|
switch (r)
|
switch (r)
|
{
|
{
|
case bfd_reloc_overflow:
|
case bfd_reloc_overflow:
|
r = info->callbacks->reloc_overflow
|
r = info->callbacks->reloc_overflow
|
(info, (h ? &h->root : NULL), symname, howto->name,
|
(info, (h ? &h->root : NULL), symname, howto->name,
|
(bfd_vma) 0, input_bfd, input_section, rel->r_offset);
|
(bfd_vma) 0, input_bfd, input_section, rel->r_offset);
|
break;
|
break;
|
|
|
case bfd_reloc_undefined:
|
case bfd_reloc_undefined:
|
r = info->callbacks->undefined_symbol
|
r = info->callbacks->undefined_symbol
|
(info, symname, input_bfd, input_section, rel->r_offset,
|
(info, symname, input_bfd, input_section, rel->r_offset,
|
TRUE);
|
TRUE);
|
break;
|
break;
|
|
|
case bfd_reloc_outofrange:
|
case bfd_reloc_outofrange:
|
msg = _("internal error: out of range error");
|
msg = _("internal error: out of range error");
|
break;
|
break;
|
|
|
case bfd_reloc_notsupported:
|
case bfd_reloc_notsupported:
|
msg = _("internal error: unsupported relocation error");
|
msg = _("internal error: unsupported relocation error");
|
break;
|
break;
|
|
|
case bfd_reloc_dangerous:
|
case bfd_reloc_dangerous:
|
msg = _("internal error: dangerous relocation");
|
msg = _("internal error: dangerous relocation");
|
break;
|
break;
|
|
|
default:
|
default:
|
msg = _("internal error: unknown error");
|
msg = _("internal error: unknown error");
|
break;
|
break;
|
}
|
}
|
|
|
if (msg)
|
if (msg)
|
r = info->callbacks->warning
|
r = info->callbacks->warning
|
(info, msg, symname, input_bfd, input_section, rel->r_offset);
|
(info, msg, symname, input_bfd, input_section, rel->r_offset);
|
|
|
if (! r)
|
if (! r)
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
|
|
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 bfd_boolean
|
static bfd_boolean
|
elf_cris_finish_dynamic_symbol (output_bfd, info, h, sym)
|
elf_cris_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;
|
|
|
/* Where in the plt entry to put values. */
|
/* Where in the plt entry to put values. */
|
int plt_off1 = 2, plt_off2 = 10, plt_off3 = 16;
|
int plt_off1 = 2, plt_off2 = 10, plt_off3 = 16;
|
|
|
/* What offset to add to the distance to the first PLT entry for the
|
/* What offset to add to the distance to the first PLT entry for the
|
value at plt_off3. */
|
value at plt_off3. */
|
int plt_off3_value_bias = 4;
|
int plt_off3_value_bias = 4;
|
|
|
/* Where in the PLT entry the call-dynlink-stub is (happens to be same
|
/* Where in the PLT entry the call-dynlink-stub is (happens to be same
|
for PIC and non-PIC for v32 and pre-v32). */
|
for PIC and non-PIC for v32 and pre-v32). */
|
int plt_stub_offset = 8;
|
int plt_stub_offset = 8;
|
int plt_entry_size = PLT_ENTRY_SIZE;
|
int plt_entry_size = PLT_ENTRY_SIZE;
|
const bfd_byte *plt_entry = elf_cris_plt_entry;
|
const bfd_byte *plt_entry = elf_cris_plt_entry;
|
const bfd_byte *plt_pic_entry = elf_cris_pic_plt_entry;
|
const bfd_byte *plt_pic_entry = elf_cris_pic_plt_entry;
|
|
|
/* Adjust the various PLT entry offsets. */
|
/* Adjust the various PLT entry offsets. */
|
if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
|
if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
|
{
|
{
|
plt_off2 = 14;
|
plt_off2 = 14;
|
plt_off3 = 20;
|
plt_off3 = 20;
|
plt_off3_value_bias = -2;
|
plt_off3_value_bias = -2;
|
plt_stub_offset = 12;
|
plt_stub_offset = 12;
|
plt_entry_size = PLT_ENTRY_SIZE_V32;
|
plt_entry_size = PLT_ENTRY_SIZE_V32;
|
plt_entry = elf_cris_plt_entry_v32;
|
plt_entry = elf_cris_plt_entry_v32;
|
plt_pic_entry = elf_cris_pic_plt_entry_v32;
|
plt_pic_entry = elf_cris_pic_plt_entry_v32;
|
}
|
}
|
|
|
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 *sgotplt;
|
asection *sgotplt;
|
asection *sgot;
|
asection *sgot;
|
asection *srela;
|
asection *srela;
|
bfd_vma got_base;
|
bfd_vma got_base;
|
|
|
bfd_vma gotplt_offset
|
bfd_vma gotplt_offset
|
= ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
|
= ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
|
Elf_Internal_Rela rela;
|
Elf_Internal_Rela rela;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
bfd_boolean has_gotplt = gotplt_offset != 0;
|
bfd_boolean has_gotplt = gotplt_offset != 0;
|
|
|
/* 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. */
|
/* We have to count backwards here, and the result is only valid as
|
/* We have to count backwards here, and the result is only valid as
|
an index into .got.plt and its relocations. FIXME: Constants... */
|
an index into .got.plt and its relocations. FIXME: Constants... */
|
bfd_vma gotplt_index = gotplt_offset/4 - 3;
|
bfd_vma gotplt_index = gotplt_offset/4 - 3;
|
|
|
/* Get the offset into the .got table of the entry that corresponds
|
/* Get the offset into the .got table of the entry that corresponds
|
to this function. Note that we embed knowledge that "incoming"
|
to this function. Note that we embed knowledge that "incoming"
|
.got goes after .got.plt in the output without padding (pointer
|
.got goes after .got.plt in the output without padding (pointer
|
aligned). However, that knowledge is present in several other
|
aligned). However, that knowledge is present in several other
|
places too. */
|
places too. */
|
bfd_vma got_offset
|
bfd_vma got_offset
|
= (has_gotplt
|
= (has_gotplt
|
? gotplt_offset
|
? gotplt_offset
|
: h->got.offset + elf_cris_hash_table(info)->next_gotplt_entry);
|
: h->got.offset + elf_cris_hash_table(info)->next_gotplt_entry);
|
|
|
/* This symbol has an entry in the procedure linkage table. Set it
|
/* This symbol has an entry in the procedure linkage table. Set it
|
up. */
|
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");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
|
sgotplt = 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 && sgotplt != NULL
|
BFD_ASSERT (splt != NULL && sgotplt != NULL
|
&& (! has_gotplt || srela != NULL));
|
&& (! has_gotplt || srela != NULL));
|
|
|
got_base = sgotplt->output_section->vma + sgotplt->output_offset;
|
got_base = sgotplt->output_section->vma + sgotplt->output_offset;
|
|
|
/* Fill in the entry in the procedure linkage table. */
|
/* Fill in the entry in the procedure linkage table. */
|
if (! info->shared)
|
if (! info->shared)
|
{
|
{
|
memcpy (splt->contents + h->plt.offset, plt_entry,
|
memcpy (splt->contents + h->plt.offset, plt_entry,
|
plt_entry_size);
|
plt_entry_size);
|
|
|
/* We need to enter the absolute address of the GOT entry here. */
|
/* We need to enter the absolute address of the GOT entry here. */
|
bfd_put_32 (output_bfd, got_base + got_offset,
|
bfd_put_32 (output_bfd, got_base + got_offset,
|
splt->contents + h->plt.offset + plt_off1);
|
splt->contents + h->plt.offset + plt_off1);
|
}
|
}
|
else
|
else
|
{
|
{
|
memcpy (splt->contents + h->plt.offset, plt_pic_entry,
|
memcpy (splt->contents + h->plt.offset, plt_pic_entry,
|
plt_entry_size);
|
plt_entry_size);
|
bfd_put_32 (output_bfd, got_offset,
|
bfd_put_32 (output_bfd, got_offset,
|
splt->contents + h->plt.offset + plt_off1);
|
splt->contents + h->plt.offset + plt_off1);
|
}
|
}
|
|
|
/* Fill in the plt entry and make a relocation, if this is a "real"
|
/* Fill in the plt entry and make a relocation, if this is a "real"
|
PLT entry. */
|
PLT entry. */
|
if (has_gotplt)
|
if (has_gotplt)
|
{
|
{
|
/* Fill in the offset to the reloc table. */
|
/* Fill in the offset to the reloc table. */
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
gotplt_index * sizeof (Elf32_External_Rela),
|
gotplt_index * sizeof (Elf32_External_Rela),
|
splt->contents + h->plt.offset + plt_off2);
|
splt->contents + h->plt.offset + plt_off2);
|
|
|
/* Fill in the offset to the first PLT entry, where to "jump". */
|
/* Fill in the offset to the first PLT entry, where to "jump". */
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
- (h->plt.offset + plt_off3 + plt_off3_value_bias),
|
- (h->plt.offset + plt_off3 + plt_off3_value_bias),
|
splt->contents + h->plt.offset + plt_off3);
|
splt->contents + h->plt.offset + plt_off3);
|
|
|
/* Fill in the entry in the global offset table with the address of
|
/* Fill in the entry in the global offset table with the address of
|
the relocating stub. */
|
the relocating stub. */
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
(splt->output_section->vma
|
(splt->output_section->vma
|
+ splt->output_offset
|
+ splt->output_offset
|
+ h->plt.offset
|
+ h->plt.offset
|
+ plt_stub_offset),
|
+ plt_stub_offset),
|
sgotplt->contents + got_offset);
|
sgotplt->contents + got_offset);
|
|
|
/* Fill in the entry in the .rela.plt section. */
|
/* Fill in the entry in the .rela.plt section. */
|
rela.r_offset = (sgotplt->output_section->vma
|
rela.r_offset = (sgotplt->output_section->vma
|
+ sgotplt->output_offset
|
+ sgotplt->output_offset
|
+ got_offset);
|
+ got_offset);
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_JUMP_SLOT);
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_JUMP_SLOT);
|
rela.r_addend = 0;
|
rela.r_addend = 0;
|
loc = srela->contents + gotplt_index * sizeof (Elf32_External_Rela);
|
loc = srela->contents + gotplt_index * sizeof (Elf32_External_Rela);
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
}
|
}
|
|
|
if (!h->def_regular)
|
if (!h->def_regular)
|
{
|
{
|
/* Mark the symbol as undefined, rather than as defined in
|
/* Mark the symbol as undefined, rather than as defined in
|
the .plt section. Leave the value alone. */
|
the .plt section. Leave the value alone. */
|
sym->st_shndx = SHN_UNDEF;
|
sym->st_shndx = SHN_UNDEF;
|
|
|
/* FIXME: From elf32-sparc.c 2001-02-19 (1.18). I still don't
|
/* FIXME: From elf32-sparc.c 2001-02-19 (1.18). I still don't
|
know whether resetting the value is significant; if it really
|
know whether resetting the value is significant; if it really
|
is, rather than a quirk or bug in the sparc port, then I
|
is, rather than a quirk or bug in the sparc port, then I
|
believe we'd see this elsewhere. */
|
believe we'd see this elsewhere. */
|
/* If the symbol is weak, we do need to clear the value.
|
/* If the symbol is weak, we do need to clear the value.
|
Otherwise, the PLT entry would provide a definition for
|
Otherwise, the PLT entry would provide a definition for
|
the symbol even if the symbol wasn't defined anywhere,
|
the symbol even if the symbol wasn't defined anywhere,
|
and so the symbol would never be NULL. */
|
and so the symbol would never be NULL. */
|
if (!h->ref_regular_nonweak)
|
if (!h->ref_regular_nonweak)
|
sym->st_value = 0;
|
sym->st_value = 0;
|
}
|
}
|
}
|
}
|
|
|
/* For an ordinary program, we emit .got relocs only for symbols that
|
/* For an ordinary program, we emit .got relocs only for symbols that
|
are in the dynamic-symbols table and are either defined by the
|
are in the dynamic-symbols table and are either defined by the
|
program or are undefined weak symbols, or are function symbols
|
program or are undefined weak symbols, or are function symbols
|
where we do not output a PLT: the PLT reloc was output above and all
|
where we do not output a PLT: the PLT reloc was output above and all
|
references to the function symbol are redirected to the PLT. */
|
references to the function symbol are redirected to the PLT. */
|
if (h->got.offset != (bfd_vma) -1
|
if (h->got.offset != (bfd_vma) -1
|
&& (info->shared
|
&& (info->shared
|
|| (h->dynindx != -1
|
|| (h->dynindx != -1
|
&& h->plt.offset == (bfd_vma) -1
|
&& h->plt.offset == (bfd_vma) -1
|
&& !h->def_regular
|
&& !h->def_regular
|
&& h->root.type != bfd_link_hash_undefweak)))
|
&& h->root.type != bfd_link_hash_undefweak)))
|
{
|
{
|
asection *sgot;
|
asection *sgot;
|
asection *srela;
|
asection *srela;
|
Elf_Internal_Rela rela;
|
Elf_Internal_Rela rela;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
bfd_byte *where;
|
bfd_byte *where;
|
|
|
/* This symbol has an entry in the global offset table. Set it up. */
|
/* This symbol has an entry in the global offset table. Set it up. */
|
|
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
srela = bfd_get_section_by_name (dynobj, ".rela.got");
|
srela = bfd_get_section_by_name (dynobj, ".rela.got");
|
BFD_ASSERT (sgot != NULL && srela != NULL);
|
BFD_ASSERT (sgot != NULL && srela != NULL);
|
|
|
rela.r_offset = (sgot->output_section->vma
|
rela.r_offset = (sgot->output_section->vma
|
+ sgot->output_offset
|
+ sgot->output_offset
|
+ (h->got.offset &~ (bfd_vma) 1));
|
+ (h->got.offset &~ (bfd_vma) 1));
|
|
|
/* If this is a static link, or it is a -Bsymbolic link and the
|
/* If this is a static link, or it is a -Bsymbolic link and the
|
symbol is defined locally or was forced to be local because
|
symbol is defined locally or was forced to be local because
|
of a version file, we just want to emit a RELATIVE reloc.
|
of a version file, we just want to emit a RELATIVE reloc.
|
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. */
|
where = sgot->contents + (h->got.offset &~ (bfd_vma) 1);
|
where = sgot->contents + (h->got.offset &~ (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->def_regular))
|
&& h->def_regular))
|
{
|
{
|
rela.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
|
rela.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
|
rela.r_addend = bfd_get_signed_32 (output_bfd, where);
|
rela.r_addend = bfd_get_signed_32 (output_bfd, where);
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_put_32 (output_bfd, (bfd_vma) 0, where);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, where);
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_GLOB_DAT);
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_GLOB_DAT);
|
rela.r_addend = 0;
|
rela.r_addend = 0;
|
}
|
}
|
|
|
loc = srela->contents;
|
loc = srela->contents;
|
loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
|
loc += srela->reloc_count++ * sizeof (Elf32_External_Rela);
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
}
|
}
|
|
|
if (h->needs_copy)
|
if (h->needs_copy)
|
{
|
{
|
asection *s;
|
asection *s;
|
Elf_Internal_Rela rela;
|
Elf_Internal_Rela rela;
|
bfd_byte *loc;
|
bfd_byte *loc;
|
|
|
/* This symbol needs a copy reloc. Set it up. */
|
/* This symbol needs a copy reloc. Set it up. */
|
|
|
BFD_ASSERT (h->dynindx != -1
|
BFD_ASSERT (h->dynindx != -1
|
&& (h->root.type == bfd_link_hash_defined
|
&& (h->root.type == bfd_link_hash_defined
|
|| h->root.type == bfd_link_hash_defweak));
|
|| h->root.type == bfd_link_hash_defweak));
|
|
|
s = bfd_get_section_by_name (h->root.u.def.section->owner,
|
s = bfd_get_section_by_name (h->root.u.def.section->owner,
|
".rela.bss");
|
".rela.bss");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
|
|
rela.r_offset = (h->root.u.def.value
|
rela.r_offset = (h->root.u.def.value
|
+ h->root.u.def.section->output_section->vma
|
+ h->root.u.def.section->output_section->vma
|
+ h->root.u.def.section->output_offset);
|
+ h->root.u.def.section->output_offset);
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_COPY);
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_COPY);
|
rela.r_addend = 0;
|
rela.r_addend = 0;
|
loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
|
loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
}
|
}
|
|
|
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
|
/* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
|
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|
|| h == elf_hash_table (info)->hgot)
|
|| h == elf_hash_table (info)->hgot)
|
sym->st_shndx = SHN_ABS;
|
sym->st_shndx = SHN_ABS;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Finish up the dynamic sections. */
|
/* Finish up the dynamic sections. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_cris_finish_dynamic_sections (output_bfd, info)
|
elf_cris_finish_dynamic_sections (output_bfd, info)
|
bfd *output_bfd;
|
bfd *output_bfd;
|
struct bfd_link_info *info;
|
struct bfd_link_info *info;
|
{
|
{
|
bfd *dynobj;
|
bfd *dynobj;
|
asection *sgot;
|
asection *sgot;
|
asection *sdyn;
|
asection *sdyn;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
|
sgot = bfd_get_section_by_name (dynobj, ".got.plt");
|
BFD_ASSERT (sgot != NULL);
|
BFD_ASSERT (sgot != NULL);
|
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
|
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
if (elf_hash_table (info)->dynamic_sections_created)
|
{
|
{
|
asection *splt;
|
asection *splt;
|
Elf32_External_Dyn *dyncon, *dynconend;
|
Elf32_External_Dyn *dyncon, *dynconend;
|
|
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
BFD_ASSERT (splt != NULL && sdyn != NULL);
|
BFD_ASSERT (splt != NULL && sdyn != NULL);
|
|
|
dyncon = (Elf32_External_Dyn *) sdyn->contents;
|
dyncon = (Elf32_External_Dyn *) sdyn->contents;
|
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
|
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
|
for (; dyncon < dynconend; dyncon++)
|
for (; dyncon < dynconend; dyncon++)
|
{
|
{
|
Elf_Internal_Dyn dyn;
|
Elf_Internal_Dyn dyn;
|
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:
|
s = bfd_get_section_by_name (output_bfd, ".got");
|
s = bfd_get_section_by_name (output_bfd, ".got");
|
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_JMPREL:
|
case DT_JMPREL:
|
/* Yes, we *can* have a .plt and no .plt.rela, for instance
|
/* Yes, we *can* have a .plt and no .plt.rela, for instance
|
if all symbols are found in the .got (not .got.plt). */
|
if all symbols are found in the .got (not .got.plt). */
|
s = bfd_get_section_by_name (output_bfd, ".rela.plt");
|
s = bfd_get_section_by_name (output_bfd, ".rela.plt");
|
dyn.d_un.d_ptr = s != NULL ? s->vma : 0;
|
dyn.d_un.d_ptr = s != NULL ? s->vma : 0;
|
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");
|
if (s == NULL)
|
if (s == NULL)
|
dyn.d_un.d_val = 0;
|
dyn.d_un.d_val = 0;
|
else
|
else
|
dyn.d_un.d_val = s->size;
|
dyn.d_un.d_val = s->size;
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
break;
|
break;
|
|
|
case DT_RELASZ:
|
case DT_RELASZ:
|
/* The procedure linkage table relocs (DT_JMPREL) should
|
/* The procedure linkage table relocs (DT_JMPREL) should
|
not be included in the overall relocs (DT_RELA).
|
not be included in the overall relocs (DT_RELA).
|
Therefore, we override the DT_RELASZ entry here to
|
Therefore, we override the DT_RELASZ entry here to
|
make it not include the JMPREL relocs. Since the
|
make it not include the JMPREL relocs. Since the
|
linker script arranges for .rela.plt to follow all
|
linker script arranges for .rela.plt to follow all
|
other relocation sections, we don't have to worry
|
other relocation sections, we don't have to worry
|
about changing the DT_RELA entry. */
|
about changing the DT_RELA entry. */
|
s = bfd_get_section_by_name (output_bfd, ".rela.plt");
|
s = bfd_get_section_by_name (output_bfd, ".rela.plt");
|
if (s != NULL)
|
if (s != NULL)
|
dyn.d_un.d_val -= s->size;
|
dyn.d_un.d_val -= s->size;
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Fill in the first entry in the procedure linkage table. */
|
/* Fill in the first entry in the procedure linkage table. */
|
if (splt->size > 0)
|
if (splt->size > 0)
|
{
|
{
|
if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
|
if (bfd_get_mach (output_bfd) == bfd_mach_cris_v32)
|
{
|
{
|
if (info->shared)
|
if (info->shared)
|
memcpy (splt->contents, elf_cris_pic_plt0_entry_v32,
|
memcpy (splt->contents, elf_cris_pic_plt0_entry_v32,
|
PLT_ENTRY_SIZE_V32);
|
PLT_ENTRY_SIZE_V32);
|
else
|
else
|
{
|
{
|
memcpy (splt->contents, elf_cris_plt0_entry_v32,
|
memcpy (splt->contents, elf_cris_plt0_entry_v32,
|
PLT_ENTRY_SIZE_V32);
|
PLT_ENTRY_SIZE_V32);
|
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->contents + 4);
|
splt->contents + 4);
|
|
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize
|
= PLT_ENTRY_SIZE_V32;
|
= PLT_ENTRY_SIZE_V32;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
if (info->shared)
|
if (info->shared)
|
memcpy (splt->contents, elf_cris_pic_plt0_entry,
|
memcpy (splt->contents, elf_cris_pic_plt0_entry,
|
PLT_ENTRY_SIZE);
|
PLT_ENTRY_SIZE);
|
else
|
else
|
{
|
{
|
memcpy (splt->contents, elf_cris_plt0_entry,
|
memcpy (splt->contents, elf_cris_plt0_entry,
|
PLT_ENTRY_SIZE);
|
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->contents + 6);
|
splt->contents + 6);
|
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->contents + 14);
|
splt->contents + 14);
|
|
|
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;
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Fill in the first three entries in the global offset table. */
|
/* Fill in the first three entries in the global offset table. */
|
if (sgot->size > 0)
|
if (sgot->size > 0)
|
{
|
{
|
if (sdyn == NULL)
|
if (sdyn == NULL)
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
|
else
|
else
|
bfd_put_32 (output_bfd,
|
bfd_put_32 (output_bfd,
|
sdyn->output_section->vma + sdyn->output_offset,
|
sdyn->output_section->vma + sdyn->output_offset,
|
sgot->contents);
|
sgot->contents);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
|
}
|
}
|
|
|
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
|
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* 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 *
|
cris_elf_gc_mark_hook (asection *sec,
|
cris_elf_gc_mark_hook (asection *sec,
|
struct bfd_link_info *info,
|
struct bfd_link_info *info,
|
Elf_Internal_Rela *rel,
|
Elf_Internal_Rela *rel,
|
struct elf_link_hash_entry *h,
|
struct elf_link_hash_entry *h,
|
Elf_Internal_Sym *sym)
|
Elf_Internal_Sym *sym)
|
{
|
{
|
if (h != NULL)
|
if (h != NULL)
|
switch (ELF32_R_TYPE (rel->r_info))
|
switch (ELF32_R_TYPE (rel->r_info))
|
{
|
{
|
case R_CRIS_GNU_VTINHERIT:
|
case R_CRIS_GNU_VTINHERIT:
|
case R_CRIS_GNU_VTENTRY:
|
case R_CRIS_GNU_VTENTRY:
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
|
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
|
}
|
}
|
|
|
/* Update the got entry reference counts for the section being removed. */
|
/* Update the got entry reference counts for the section being removed. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
cris_elf_gc_sweep_hook (bfd *abfd,
|
cris_elf_gc_sweep_hook (bfd *abfd,
|
struct bfd_link_info *info,
|
struct bfd_link_info *info,
|
asection *sec,
|
asection *sec,
|
const Elf_Internal_Rela *relocs)
|
const Elf_Internal_Rela *relocs)
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
struct elf_link_hash_entry **sym_hashes;
|
struct elf_link_hash_entry **sym_hashes;
|
bfd_signed_vma *local_got_refcounts;
|
bfd_signed_vma *local_got_refcounts;
|
const Elf_Internal_Rela *rel, *relend;
|
const Elf_Internal_Rela *rel, *relend;
|
bfd *dynobj;
|
bfd *dynobj;
|
asection *sgot;
|
asection *sgot;
|
asection *srelgot;
|
asection *srelgot;
|
|
|
if (info->relocatable)
|
if (info->relocatable)
|
return TRUE;
|
return TRUE;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
if (dynobj == NULL)
|
if (dynobj == NULL)
|
return TRUE;
|
return TRUE;
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
sym_hashes = elf_sym_hashes (abfd);
|
sym_hashes = elf_sym_hashes (abfd);
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
|
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
|
|
relend = relocs + sec->reloc_count;
|
relend = relocs + sec->reloc_count;
|
for (rel = relocs; rel < relend; rel++)
|
for (rel = relocs; rel < relend; rel++)
|
{
|
{
|
unsigned long r_symndx;
|
unsigned long r_symndx;
|
struct elf_link_hash_entry *h = NULL;
|
struct elf_link_hash_entry *h = NULL;
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
if (r_symndx >= symtab_hdr->sh_info)
|
if (r_symndx >= symtab_hdr->sh_info)
|
{
|
{
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
while (h->root.type == bfd_link_hash_indirect
|
while (h->root.type == bfd_link_hash_indirect
|
|| h->root.type == bfd_link_hash_warning)
|
|| h->root.type == bfd_link_hash_warning)
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
}
|
}
|
|
|
switch (ELF32_R_TYPE (rel->r_info))
|
switch (ELF32_R_TYPE (rel->r_info))
|
{
|
{
|
case R_CRIS_16_GOT:
|
case R_CRIS_16_GOT:
|
case R_CRIS_32_GOT:
|
case R_CRIS_32_GOT:
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
if (h->got.refcount > 0)
|
if (h->got.refcount > 0)
|
{
|
{
|
--h->got.refcount;
|
--h->got.refcount;
|
if (h->got.refcount == 0)
|
if (h->got.refcount == 0)
|
{
|
{
|
/* We don't need the .got entry any more. */
|
/* We don't need the .got entry any more. */
|
sgot->size -= 4;
|
sgot->size -= 4;
|
srelgot->size -= sizeof (Elf32_External_Rela);
|
srelgot->size -= sizeof (Elf32_External_Rela);
|
}
|
}
|
}
|
}
|
break;
|
break;
|
}
|
}
|
|
|
local_got_reloc:
|
local_got_reloc:
|
if (local_got_refcounts != NULL)
|
if (local_got_refcounts != NULL)
|
{
|
{
|
if (local_got_refcounts[r_symndx] > 0)
|
if (local_got_refcounts[r_symndx] > 0)
|
{
|
{
|
--local_got_refcounts[r_symndx];
|
--local_got_refcounts[r_symndx];
|
if (local_got_refcounts[r_symndx] == 0)
|
if (local_got_refcounts[r_symndx] == 0)
|
{
|
{
|
/* We don't need the .got entry any more. */
|
/* We don't need the .got entry any more. */
|
sgot->size -= 4;
|
sgot->size -= 4;
|
if (info->shared)
|
if (info->shared)
|
srelgot->size -= sizeof (Elf32_External_Rela);
|
srelgot->size -= sizeof (Elf32_External_Rela);
|
}
|
}
|
}
|
}
|
}
|
}
|
break;
|
break;
|
|
|
case R_CRIS_16_GOTPLT:
|
case R_CRIS_16_GOTPLT:
|
case R_CRIS_32_GOTPLT:
|
case R_CRIS_32_GOTPLT:
|
/* For local symbols, treat these like GOT relocs. */
|
/* For local symbols, treat these like GOT relocs. */
|
if (h == NULL)
|
if (h == NULL)
|
goto local_got_reloc;
|
goto local_got_reloc;
|
/* Fall through. */
|
/* Fall through. */
|
|
|
case R_CRIS_32_PLT_GOTREL:
|
case R_CRIS_32_PLT_GOTREL:
|
/* FIXME: We don't garbage-collect away the .got section. */
|
/* FIXME: We don't garbage-collect away the .got section. */
|
if (local_got_refcounts != NULL)
|
if (local_got_refcounts != NULL)
|
local_got_refcounts[-1]--;
|
local_got_refcounts[-1]--;
|
/* Fall through. */
|
/* Fall through. */
|
|
|
case R_CRIS_8_PCREL:
|
case R_CRIS_8_PCREL:
|
case R_CRIS_16_PCREL:
|
case R_CRIS_16_PCREL:
|
case R_CRIS_32_PCREL:
|
case R_CRIS_32_PCREL:
|
case R_CRIS_32_PLT_PCREL:
|
case R_CRIS_32_PLT_PCREL:
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
&& h->plt.refcount > 0)
|
&& h->plt.refcount > 0)
|
--h->plt.refcount;
|
--h->plt.refcount;
|
}
|
}
|
break;
|
break;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
|
/* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
|
entry but we found we will not create any. Called when we find we will
|
entry but we found we will not create any. Called when we find we will
|
not have any PLT for this symbol, by for example
|
not have any PLT for this symbol, by for example
|
elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link,
|
elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link,
|
or elf_cris_size_dynamic_sections if no dynamic sections will be
|
or elf_cris_size_dynamic_sections if no dynamic sections will be
|
created (we're only linking static objects). */
|
created (we're only linking static objects). */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_cris_adjust_gotplt_to_got (h, p)
|
elf_cris_adjust_gotplt_to_got (h, p)
|
struct elf_cris_link_hash_entry *h;
|
struct elf_cris_link_hash_entry *h;
|
PTR p;
|
PTR p;
|
{
|
{
|
struct bfd_link_info *info = (struct bfd_link_info *) p;
|
struct bfd_link_info *info = (struct bfd_link_info *) p;
|
|
|
if (h->root.root.type == bfd_link_hash_warning)
|
if (h->root.root.type == bfd_link_hash_warning)
|
h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
|
h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
|
|
|
/* If nobody wanted a GOTPLT with this symbol, we're done. */
|
/* If nobody wanted a GOTPLT with this symbol, we're done. */
|
if (h->gotplt_refcount <= 0)
|
if (h->gotplt_refcount <= 0)
|
return TRUE;
|
return TRUE;
|
|
|
if (h->root.got.refcount > 0)
|
if (h->root.got.refcount > 0)
|
{
|
{
|
/* There's a GOT entry for this symbol. Just adjust the refcount.
|
/* There's a GOT entry for this symbol. Just adjust the refcount.
|
Probably not necessary at this stage, but keeping it accurate
|
Probably not necessary at this stage, but keeping it accurate
|
helps avoiding surprises later. */
|
helps avoiding surprises later. */
|
h->root.got.refcount += h->gotplt_refcount;
|
h->root.got.refcount += h->gotplt_refcount;
|
h->gotplt_refcount = 0;
|
h->gotplt_refcount = 0;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* No GOT entry for this symbol. We need to create one. */
|
/* No GOT entry for this symbol. We need to create one. */
|
bfd *dynobj = elf_hash_table (info)->dynobj;
|
bfd *dynobj = elf_hash_table (info)->dynobj;
|
asection *sgot;
|
asection *sgot;
|
asection *srelgot;
|
asection *srelgot;
|
|
|
BFD_ASSERT (dynobj != NULL);
|
BFD_ASSERT (dynobj != NULL);
|
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");
|
|
|
/* Put an accurate refcount there. */
|
/* Put an accurate refcount there. */
|
h->root.got.refcount = h->gotplt_refcount;
|
h->root.got.refcount = h->gotplt_refcount;
|
|
|
h->gotplt_refcount = 0;
|
h->gotplt_refcount = 0;
|
|
|
/* We always have a .got and a .rela.got section if there were
|
/* We always have a .got and a .rela.got section if there were
|
GOTPLT relocs in input. */
|
GOTPLT relocs in input. */
|
BFD_ASSERT (sgot != NULL && srelgot != NULL);
|
BFD_ASSERT (sgot != NULL && srelgot != NULL);
|
|
|
/* Allocate space in the .got section. */
|
/* Allocate space in the .got section. */
|
sgot->size += 4;
|
sgot->size += 4;
|
|
|
/* Allocate relocation space. */
|
/* Allocate relocation space. */
|
srelgot->size += sizeof (Elf32_External_Rela);
|
srelgot->size += sizeof (Elf32_External_Rela);
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Try to fold PLT entries with GOT entries. There are two cases when we
|
/* Try to fold PLT entries with GOT entries. There are two cases when we
|
want to do this:
|
want to do this:
|
|
|
- When all PLT references are GOTPLT references, and there are GOT
|
- When all PLT references are GOTPLT references, and there are GOT
|
references, and this is not the executable. We don't have to
|
references, and this is not the executable. We don't have to
|
generate a PLT at all.
|
generate a PLT at all.
|
|
|
- When there are both (ordinary) PLT references and GOT references,
|
- When there are both (ordinary) PLT references and GOT references,
|
and this isn't the executable.
|
and this isn't the executable.
|
We want to make the PLT reference use the ordinary GOT entry rather
|
We want to make the PLT reference use the ordinary GOT entry rather
|
than R_CRIS_JUMP_SLOT, a run-time dynamically resolved GOTPLT entry,
|
than R_CRIS_JUMP_SLOT, a run-time dynamically resolved GOTPLT entry,
|
since the GOT entry will have to be resolved at startup anyway.
|
since the GOT entry will have to be resolved at startup anyway.
|
|
|
Though the latter case is handled when room for the PLT is allocated,
|
Though the latter case is handled when room for the PLT is allocated,
|
not here.
|
not here.
|
|
|
By folding into the GOT, we may need a round-trip to a PLT in the
|
By folding into the GOT, we may need a round-trip to a PLT in the
|
executable for calls, a loss in performance. Still, losing a
|
executable for calls, a loss in performance. Still, losing a
|
reloc is a win in size and at least in start-up time.
|
reloc is a win in size and at least in start-up time.
|
|
|
Note that this function is called before symbols are forced local by
|
Note that this function is called before symbols are forced local by
|
version scripts. The differing cases are handled by
|
version scripts. The differing cases are handled by
|
elf_cris_hide_symbol. */
|
elf_cris_hide_symbol. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_cris_try_fold_plt_to_got (h, p)
|
elf_cris_try_fold_plt_to_got (h, p)
|
struct elf_cris_link_hash_entry *h;
|
struct elf_cris_link_hash_entry *h;
|
PTR p;
|
PTR p;
|
{
|
{
|
struct bfd_link_info *info = (struct bfd_link_info *) p;
|
struct bfd_link_info *info = (struct bfd_link_info *) p;
|
|
|
/* If there are no GOT references for this symbol, we can't fold any
|
/* If there are no GOT references for this symbol, we can't fold any
|
other reference so there's nothing to do. Likewise if there are no
|
other reference so there's nothing to do. Likewise if there are no
|
PLT references; GOTPLT references included. */
|
PLT references; GOTPLT references included. */
|
if (h->root.got.refcount <= 0 || h->root.plt.refcount <= 0)
|
if (h->root.got.refcount <= 0 || h->root.plt.refcount <= 0)
|
return TRUE;
|
return TRUE;
|
|
|
/* GOTPLT relocs are supposed to be included into the PLT refcount. */
|
/* GOTPLT relocs are supposed to be included into the PLT refcount. */
|
BFD_ASSERT (h->gotplt_refcount <= h->root.plt.refcount);
|
BFD_ASSERT (h->gotplt_refcount <= h->root.plt.refcount);
|
|
|
if (h->gotplt_refcount == h->root.plt.refcount)
|
if (h->gotplt_refcount == h->root.plt.refcount)
|
{
|
{
|
/* The only PLT references are GOTPLT references, and there are GOT
|
/* The only PLT references are GOTPLT references, and there are GOT
|
references. Convert PLT to GOT references. */
|
references. Convert PLT to GOT references. */
|
if (! elf_cris_adjust_gotplt_to_got (h, info))
|
if (! elf_cris_adjust_gotplt_to_got (h, info))
|
return FALSE;
|
return FALSE;
|
|
|
/* Clear the PLT references, so no PLT will be created. */
|
/* Clear the PLT references, so no PLT will be created. */
|
h->root.plt.offset = (bfd_vma) -1;
|
h->root.plt.offset = (bfd_vma) -1;
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc
|
/* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc
|
to use a GOT entry (and create one) rather than requiring a GOTPLT
|
to use a GOT entry (and create one) rather than requiring a GOTPLT
|
entry. */
|
entry. */
|
|
|
static void
|
static void
|
elf_cris_hide_symbol (info, h, force_local)
|
elf_cris_hide_symbol (info, h, force_local)
|
struct bfd_link_info *info;
|
struct bfd_link_info *info;
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
bfd_boolean force_local;
|
bfd_boolean force_local;
|
{
|
{
|
elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry *) h, info);
|
elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry *) h, info);
|
|
|
_bfd_elf_link_hash_hide_symbol (info, h, force_local);
|
_bfd_elf_link_hash_hide_symbol (info, h, force_local);
|
}
|
}
|
|
|
/* Adjust a symbol defined by a dynamic object and referenced by a
|
/* Adjust a symbol defined by a dynamic object and referenced by a
|
regular object. The current definition is in some section of the
|
regular object. The current definition is in some section of the
|
dynamic object, but we're not including those sections. We have to
|
dynamic object, but we're not including those sections. We have to
|
change the definition to something the rest of the link can
|
change the definition to something the rest of the link can
|
understand. */
|
understand. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_cris_adjust_dynamic_symbol (info, h)
|
elf_cris_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;
|
bfd_size_type plt_entry_size;
|
bfd_size_type plt_entry_size;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
/* Make sure we know what is going on here. */
|
/* Make sure we know what is going on here. */
|
BFD_ASSERT (dynobj != NULL
|
BFD_ASSERT (dynobj != NULL
|
&& (h->needs_plt
|
&& (h->needs_plt
|
|| h->u.weakdef != NULL
|
|| h->u.weakdef != NULL
|
|| (h->def_dynamic
|
|| (h->def_dynamic
|
&& h->ref_regular
|
&& h->ref_regular
|
&& !h->def_regular)));
|
&& !h->def_regular)));
|
|
|
plt_entry_size
|
plt_entry_size
|
= (bfd_get_mach (dynobj) == bfd_mach_cris_v32
|
= (bfd_get_mach (dynobj) == bfd_mach_cris_v32
|
? PLT_ENTRY_SIZE_V32 : PLT_ENTRY_SIZE);
|
? PLT_ENTRY_SIZE_V32 : PLT_ENTRY_SIZE);
|
|
|
/* If this is a function, put it in the procedure linkage table. We
|
/* If this is a function, put it in the procedure linkage table. We
|
will fill in the contents of the procedure linkage table later,
|
will fill in the contents of the procedure linkage table later,
|
when we know the address of the .got section. */
|
when we know the address of the .got section. */
|
if (h->type == STT_FUNC
|
if (h->type == STT_FUNC
|
|| h->needs_plt)
|
|| h->needs_plt)
|
{
|
{
|
/* If we link a program (not a DSO), we'll get rid of unnecessary
|
/* If we link a program (not a DSO), we'll get rid of unnecessary
|
PLT entries; we point to the actual symbols -- even for pic
|
PLT entries; we point to the actual symbols -- even for pic
|
relocs, because a program built with -fpic should have the same
|
relocs, because a program built with -fpic should have the same
|
result as one built without -fpic, specifically considering weak
|
result as one built without -fpic, specifically considering weak
|
symbols.
|
symbols.
|
FIXME: m68k and i386 differ here, for unclear reasons. */
|
FIXME: m68k and i386 differ here, for unclear reasons. */
|
if (! info->shared
|
if (! info->shared
|
&& !h->def_dynamic)
|
&& !h->def_dynamic)
|
{
|
{
|
/* This case can occur if we saw a PLT reloc in an input file,
|
/* This case can occur if we saw a PLT reloc in an input file,
|
but the symbol was not defined by a dynamic object. In such
|
but the symbol was not defined by a dynamic object. In such
|
a case, we don't actually need to build a procedure linkage
|
a case, we don't actually need to build a procedure linkage
|
table, and we can just do an absolute or PC reloc instead, or
|
table, and we can just do an absolute or PC reloc instead, or
|
change a .got.plt index to a .got index for GOTPLT relocs. */
|
change a .got.plt index to a .got index for GOTPLT relocs. */
|
BFD_ASSERT (h->needs_plt);
|
BFD_ASSERT (h->needs_plt);
|
h->needs_plt = 0;
|
h->needs_plt = 0;
|
h->plt.offset = (bfd_vma) -1;
|
h->plt.offset = (bfd_vma) -1;
|
return
|
return
|
elf_cris_adjust_gotplt_to_got ((struct
|
elf_cris_adjust_gotplt_to_got ((struct
|
elf_cris_link_hash_entry *) h,
|
elf_cris_link_hash_entry *) h,
|
info);
|
info);
|
}
|
}
|
|
|
/* If we had a R_CRIS_GLOB_DAT that didn't have to point to a PLT;
|
/* If we had a R_CRIS_GLOB_DAT that didn't have to point to a PLT;
|
where a pointer-equivalent symbol was unimportant (i.e. more
|
where a pointer-equivalent symbol was unimportant (i.e. more
|
like R_CRIS_JUMP_SLOT after symbol evaluation) we could get rid
|
like R_CRIS_JUMP_SLOT after symbol evaluation) we could get rid
|
of the PLT. We can't for the executable, because the GOT
|
of the PLT. We can't for the executable, because the GOT
|
entries will point to the PLT there (and be constant). */
|
entries will point to the PLT there (and be constant). */
|
if (info->shared
|
if (info->shared
|
&& !elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry*)
|
&& !elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry*)
|
h, info))
|
h, info))
|
return FALSE;
|
return FALSE;
|
|
|
/* GC or folding may have rendered this entry unused. */
|
/* GC or folding may have rendered this entry unused. */
|
if (h->plt.refcount <= 0)
|
if (h->plt.refcount <= 0)
|
{
|
{
|
h->needs_plt = 0;
|
h->needs_plt = 0;
|
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_elf_link_record_dynamic_symbol (info, h))
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
s = bfd_get_section_by_name (dynobj, ".plt");
|
s = bfd_get_section_by_name (dynobj, ".plt");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
|
|
/* If this is the first .plt entry, make room for the special
|
/* If this is the first .plt entry, make room for the special
|
first entry. */
|
first entry. */
|
if (s->size == 0)
|
if (s->size == 0)
|
s->size += plt_entry_size;
|
s->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. */
|
location in the .plt. */
|
if (!info->shared
|
if (!info->shared
|
&& !h->def_regular)
|
&& !h->def_regular)
|
{
|
{
|
h->root.u.def.section = s;
|
h->root.u.def.section = s;
|
h->root.u.def.value = s->size;
|
h->root.u.def.value = s->size;
|
}
|
}
|
|
|
/* If there's already a GOT entry, use that, not a .got.plt. A
|
/* If there's already a GOT entry, use that, not a .got.plt. A
|
GOT field still has a reference count when we get here; it's
|
GOT field still has a reference count when we get here; it's
|
not yet changed to an offset. We can't do this for an
|
not yet changed to an offset. We can't do this for an
|
executable, because then the reloc associated with the PLT
|
executable, because then the reloc associated with the PLT
|
would get a non-PLT reloc pointing to the PLT. FIXME: Move
|
would get a non-PLT reloc pointing to the PLT. FIXME: Move
|
this to elf_cris_try_fold_plt_to_got. */
|
this to elf_cris_try_fold_plt_to_got. */
|
if (info->shared && h->got.refcount > 0)
|
if (info->shared && h->got.refcount > 0)
|
{
|
{
|
h->got.refcount += h->plt.refcount;
|
h->got.refcount += h->plt.refcount;
|
|
|
/* Mark the PLT offset to use the GOT entry by setting the low
|
/* Mark the PLT offset to use the GOT entry by setting the low
|
bit in the plt offset; it is always a multiple of
|
bit in the plt offset; it is always a multiple of
|
plt_entry_size (which is at least a multiple of 2). */
|
plt_entry_size (which is at least a multiple of 2). */
|
BFD_ASSERT ((s->size % plt_entry_size) == 0);
|
BFD_ASSERT ((s->size % plt_entry_size) == 0);
|
|
|
/* Change the PLT refcount to an offset. */
|
/* Change the PLT refcount to an offset. */
|
h->plt.offset = s->size;
|
h->plt.offset = s->size;
|
|
|
/* By not setting gotplt_offset (i.e. it remains at 0), we signal
|
/* By not setting gotplt_offset (i.e. it remains at 0), we signal
|
that the got entry should be used instead. */
|
that the got entry should be used instead. */
|
BFD_ASSERT (((struct elf_cris_link_hash_entry *)
|
BFD_ASSERT (((struct elf_cris_link_hash_entry *)
|
h)->gotplt_offset == 0);
|
h)->gotplt_offset == 0);
|
|
|
/* Make room for this entry. */
|
/* Make room for this entry. */
|
s->size += plt_entry_size;
|
s->size += plt_entry_size;
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* No GOT reference for this symbol; prepare for an ordinary PLT. */
|
/* No GOT reference for this symbol; prepare for an ordinary PLT. */
|
h->plt.offset = s->size;
|
h->plt.offset = s->size;
|
|
|
/* Make room for this entry. */
|
/* Make room for this entry. */
|
s->size += plt_entry_size;
|
s->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. */
|
((struct elf_cris_link_hash_entry *) h)->gotplt_offset
|
((struct elf_cris_link_hash_entry *) h)->gotplt_offset
|
= elf_cris_hash_table (info)->next_gotplt_entry;
|
= elf_cris_hash_table (info)->next_gotplt_entry;
|
elf_cris_hash_table (info)->next_gotplt_entry += 4;
|
elf_cris_hash_table (info)->next_gotplt_entry += 4;
|
|
|
s = bfd_get_section_by_name (dynobj, ".got.plt");
|
s = bfd_get_section_by_name (dynobj, ".got.plt");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
s->size += 4;
|
s->size += 4;
|
|
|
/* We also need to make an entry in the .rela.plt section. */
|
/* We also need to make an entry in the .rela.plt section. */
|
|
|
s = bfd_get_section_by_name (dynobj, ".rela.plt");
|
s = bfd_get_section_by_name (dynobj, ".rela.plt");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
s->size += sizeof (Elf32_External_Rela);
|
s->size += sizeof (Elf32_External_Rela);
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Reinitialize the plt offset now that it is not used as a reference
|
/* Reinitialize the plt offset now that it is not used as a reference
|
count any more. */
|
count any more. */
|
h->plt.offset = (bfd_vma) -1;
|
h->plt.offset = (bfd_vma) -1;
|
|
|
/* If this is a weak symbol, and there is a real definition, the
|
/* If this is a weak symbol, and there is a real definition, the
|
processor independent code will have arranged for us to see the
|
processor independent code will have arranged for us to see the
|
real definition first, and we can just use the same value. */
|
real definition first, and we can just use the same value. */
|
if (h->u.weakdef != NULL)
|
if (h->u.weakdef != NULL)
|
{
|
{
|
BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
|
BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
|
|| h->u.weakdef->root.type == bfd_link_hash_defweak);
|
|| h->u.weakdef->root.type == bfd_link_hash_defweak);
|
h->root.u.def.section = h->u.weakdef->root.u.def.section;
|
h->root.u.def.section = h->u.weakdef->root.u.def.section;
|
h->root.u.def.value = h->u.weakdef->root.u.def.value;
|
h->root.u.def.value = h->u.weakdef->root.u.def.value;
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* This is a reference to a symbol defined by a dynamic object which
|
/* This is a reference to a symbol defined by a dynamic object which
|
is not a function. */
|
is not a function. */
|
|
|
/* If we are creating a shared library, we must presume that the
|
/* If we are creating a shared library, we must presume that the
|
only references to the symbol are via the global offset table.
|
only references to the symbol are via the global offset table.
|
For such cases we need not do anything here; the relocations will
|
For such cases we need not do anything here; the relocations will
|
be handled correctly by relocate_section. */
|
be handled correctly by relocate_section. */
|
if (info->shared)
|
if (info->shared)
|
return TRUE;
|
return TRUE;
|
|
|
/* If there are no references to this symbol that do not use the
|
/* If there are no references to this symbol that do not use the
|
GOT, we don't need to generate a copy reloc. */
|
GOT, we don't need to generate a copy reloc. */
|
if (!h->non_got_ref)
|
if (!h->non_got_ref)
|
return TRUE;
|
return TRUE;
|
|
|
if (h->size == 0)
|
if (h->size == 0)
|
{
|
{
|
(*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
|
(*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
|
h->root.root.string);
|
h->root.root.string);
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* We must allocate the symbol in our .dynbss section, which will
|
/* We must allocate the symbol in our .dynbss section, which will
|
become part of the .bss section of the executable. There will be
|
become part of the .bss section of the executable. There will be
|
an entry for this symbol in the .dynsym section. The dynamic
|
an entry for this symbol in the .dynsym section. The dynamic
|
object will contain position independent code, so all references
|
object will contain position independent code, so all references
|
from the dynamic object to this symbol will go through the global
|
from the dynamic object to this symbol will go through the global
|
offset table. The dynamic linker will use the .dynsym entry to
|
offset table. The dynamic linker will use the .dynsym entry to
|
determine the address it must put in the global offset table, so
|
determine the address it must put in the global offset table, so
|
both the dynamic object and the regular object will refer to the
|
both the dynamic object and the regular object will refer to the
|
same memory location for the variable. */
|
same memory location for the variable. */
|
|
|
s = bfd_get_section_by_name (dynobj, ".dynbss");
|
s = bfd_get_section_by_name (dynobj, ".dynbss");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
|
|
/* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
|
/* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
|
copy the initial value out of the dynamic object and into the
|
copy the initial value out of the dynamic object and into the
|
runtime process image. We need to remember the offset into the
|
runtime process image. We need to remember the offset into the
|
.rela.bss section we are going to use. */
|
.rela.bss section we are going to use. */
|
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
|
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
|
{
|
{
|
asection *srel;
|
asection *srel;
|
|
|
srel = bfd_get_section_by_name (dynobj, ".rela.bss");
|
srel = bfd_get_section_by_name (dynobj, ".rela.bss");
|
BFD_ASSERT (srel != NULL);
|
BFD_ASSERT (srel != NULL);
|
srel->size += sizeof (Elf32_External_Rela);
|
srel->size += sizeof (Elf32_External_Rela);
|
h->needs_copy = 1;
|
h->needs_copy = 1;
|
}
|
}
|
|
|
return _bfd_elf_adjust_dynamic_copy (h, s);
|
return _bfd_elf_adjust_dynamic_copy (h, s);
|
}
|
}
|
|
|
/* Look through the relocs for a section during the first phase. */
|
/* Look through the relocs for a section during the first phase. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
cris_elf_check_relocs (abfd, info, sec, relocs)
|
cris_elf_check_relocs (abfd, info, sec, relocs)
|
bfd *abfd;
|
bfd *abfd;
|
struct bfd_link_info *info;
|
struct bfd_link_info *info;
|
asection *sec;
|
asection *sec;
|
const Elf_Internal_Rela *relocs;
|
const Elf_Internal_Rela *relocs;
|
{
|
{
|
bfd *dynobj;
|
bfd *dynobj;
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
struct elf_link_hash_entry **sym_hashes;
|
struct elf_link_hash_entry **sym_hashes;
|
bfd_signed_vma *local_got_refcounts;
|
bfd_signed_vma *local_got_refcounts;
|
const Elf_Internal_Rela *rel;
|
const Elf_Internal_Rela *rel;
|
const Elf_Internal_Rela *rel_end;
|
const Elf_Internal_Rela *rel_end;
|
asection *sgot;
|
asection *sgot;
|
asection *srelgot;
|
asection *srelgot;
|
asection *sreloc;
|
asection *sreloc;
|
|
|
if (info->relocatable)
|
if (info->relocatable)
|
return TRUE;
|
return TRUE;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
sym_hashes = elf_sym_hashes (abfd);
|
sym_hashes = elf_sym_hashes (abfd);
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
|
|
sgot = NULL;
|
sgot = NULL;
|
srelgot = NULL;
|
srelgot = NULL;
|
sreloc = NULL;
|
sreloc = NULL;
|
|
|
rel_end = relocs + sec->reloc_count;
|
rel_end = relocs + sec->reloc_count;
|
for (rel = relocs; rel < rel_end; rel++)
|
for (rel = relocs; rel < rel_end; rel++)
|
{
|
{
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
unsigned long r_symndx;
|
unsigned long r_symndx;
|
enum elf_cris_reloc_type r_type;
|
enum elf_cris_reloc_type r_type;
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
h = NULL;
|
h = NULL;
|
else
|
else
|
{
|
{
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
while (h->root.type == bfd_link_hash_indirect
|
while (h->root.type == bfd_link_hash_indirect
|
|| h->root.type == bfd_link_hash_warning)
|
|| h->root.type == bfd_link_hash_warning)
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
}
|
}
|
|
|
r_type = ELF32_R_TYPE (rel->r_info);
|
r_type = ELF32_R_TYPE (rel->r_info);
|
|
|
/* Some relocs require linker-created sections; we need to hang them
|
/* Some relocs require linker-created sections; we need to hang them
|
on the first input bfd we found that contained dynamic relocs. */
|
on the first input bfd we found that contained dynamic relocs. */
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case R_CRIS_16_GOT:
|
case R_CRIS_16_GOT:
|
case R_CRIS_32_GOT:
|
case R_CRIS_32_GOT:
|
case R_CRIS_32_GOTREL:
|
case R_CRIS_32_GOTREL:
|
case R_CRIS_32_PLT_GOTREL:
|
case R_CRIS_32_PLT_GOTREL:
|
case R_CRIS_32_PLT_PCREL:
|
case R_CRIS_32_PLT_PCREL:
|
case R_CRIS_16_GOTPLT:
|
case R_CRIS_16_GOTPLT:
|
case R_CRIS_32_GOTPLT:
|
case R_CRIS_32_GOTPLT:
|
if (dynobj == NULL)
|
if (dynobj == NULL)
|
{
|
{
|
elf_hash_table (info)->dynobj = dynobj = abfd;
|
elf_hash_table (info)->dynobj = dynobj = abfd;
|
|
|
/* We could handle this if we can get a handle on the
|
/* We could handle this if we can get a handle on the
|
output bfd in elf_cris_adjust_dynamic_symbol. Failing
|
output bfd in elf_cris_adjust_dynamic_symbol. Failing
|
that, we must insist on dynobj being a specific mach. */
|
that, we must insist on dynobj being a specific mach. */
|
if (bfd_get_mach (dynobj) == bfd_mach_cris_v10_v32)
|
if (bfd_get_mach (dynobj) == bfd_mach_cris_v10_v32)
|
{
|
{
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B, section %A:\n v10/v32 compatible object %s"
|
(_("%B, section %A:\n v10/v32 compatible object %s"
|
" must not contain a PIC relocation"),
|
" must not contain a PIC relocation"),
|
abfd, sec);
|
abfd, sec);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
/* Create the .got section, so we can assume it's always
|
/* Create the .got section, so we can assume it's always
|
present whenever there's a dynobj. */
|
present whenever there's a dynobj. */
|
if (!_bfd_elf_create_got_section (dynobj, info))
|
if (!_bfd_elf_create_got_section (dynobj, info))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
break;
|
break;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
|
|
/* Some relocs require a global offset table (but perhaps not a
|
/* Some relocs require a global offset table (but perhaps not a
|
specific GOT entry). */
|
specific GOT entry). */
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
/* For R_CRIS_16_GOTPLT and R_CRIS_32_GOTPLT, we need a GOT
|
/* For R_CRIS_16_GOTPLT and R_CRIS_32_GOTPLT, we need a GOT
|
entry only for local symbols. Unfortunately, we don't know
|
entry only for local symbols. Unfortunately, we don't know
|
until later on if there's a version script that forces the
|
until later on if there's a version script that forces the
|
symbol local. We must have the .rela.got section in place
|
symbol local. We must have the .rela.got section in place
|
before we know if the symbol looks global now, so we need
|
before we know if the symbol looks global now, so we need
|
to treat the reloc just like for R_CRIS_16_GOT and
|
to treat the reloc just like for R_CRIS_16_GOT and
|
R_CRIS_32_GOT. */
|
R_CRIS_32_GOT. */
|
case R_CRIS_16_GOTPLT:
|
case R_CRIS_16_GOTPLT:
|
case R_CRIS_32_GOTPLT:
|
case R_CRIS_32_GOTPLT:
|
case R_CRIS_16_GOT:
|
case R_CRIS_16_GOT:
|
case R_CRIS_32_GOT:
|
case R_CRIS_32_GOT:
|
if (srelgot == NULL
|
if (srelgot == NULL
|
&& (h != NULL || info->shared))
|
&& (h != NULL || info->shared))
|
{
|
{
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
|
if (srelgot == NULL)
|
if (srelgot == NULL)
|
{
|
{
|
srelgot = bfd_make_section_with_flags (dynobj,
|
srelgot = bfd_make_section_with_flags (dynobj,
|
".rela.got",
|
".rela.got",
|
(SEC_ALLOC
|
(SEC_ALLOC
|
| SEC_LOAD
|
| SEC_LOAD
|
| SEC_HAS_CONTENTS
|
| SEC_HAS_CONTENTS
|
| SEC_IN_MEMORY
|
| SEC_IN_MEMORY
|
| SEC_LINKER_CREATED
|
| SEC_LINKER_CREATED
|
| SEC_READONLY));
|
| SEC_READONLY));
|
if (srelgot == NULL
|
if (srelgot == NULL
|
|| !bfd_set_section_alignment (dynobj, srelgot, 2))
|
|| !bfd_set_section_alignment (dynobj, srelgot, 2))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
/* Fall through. */
|
/* Fall through. */
|
|
|
case R_CRIS_32_GOTREL:
|
case R_CRIS_32_GOTREL:
|
case R_CRIS_32_PLT_GOTREL:
|
case R_CRIS_32_PLT_GOTREL:
|
if (sgot == NULL)
|
if (sgot == NULL)
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
sgot = bfd_get_section_by_name (dynobj, ".got");
|
|
|
if (local_got_refcounts == NULL)
|
if (local_got_refcounts == NULL)
|
{
|
{
|
bfd_size_type amt;
|
bfd_size_type amt;
|
|
|
/* We use index local_got_refcounts[-1] to count all
|
/* We use index local_got_refcounts[-1] to count all
|
GOT-relative relocations that do not have explicit
|
GOT-relative relocations that do not have explicit
|
GOT entries. */
|
GOT entries. */
|
amt = symtab_hdr->sh_info + 1;
|
amt = symtab_hdr->sh_info + 1;
|
amt *= sizeof (bfd_signed_vma);
|
amt *= sizeof (bfd_signed_vma);
|
local_got_refcounts = ((bfd_signed_vma *) bfd_zalloc (abfd, amt));
|
local_got_refcounts = ((bfd_signed_vma *) bfd_zalloc (abfd, amt));
|
if (local_got_refcounts == NULL)
|
if (local_got_refcounts == NULL)
|
return FALSE;
|
return FALSE;
|
|
|
local_got_refcounts++;
|
local_got_refcounts++;
|
elf_local_got_refcounts (abfd) = local_got_refcounts;
|
elf_local_got_refcounts (abfd) = local_got_refcounts;
|
}
|
}
|
break;
|
break;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case R_CRIS_16_GOTPLT:
|
case R_CRIS_16_GOTPLT:
|
case R_CRIS_32_GOTPLT:
|
case R_CRIS_32_GOTPLT:
|
/* Mark that we need a GOT entry if the PLT entry (and its GOT
|
/* Mark that we need a GOT entry if the PLT entry (and its GOT
|
entry) is eliminated. We can only do this for a non-local
|
entry) is eliminated. We can only do this for a non-local
|
symbol. */
|
symbol. */
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
((struct elf_cris_link_hash_entry *) h)->gotplt_refcount++;
|
((struct elf_cris_link_hash_entry *) h)->gotplt_refcount++;
|
goto handle_gotplt_reloc;
|
goto handle_gotplt_reloc;
|
}
|
}
|
/* If h is NULL then this is a local symbol, and we must make a
|
/* If h is NULL then this is a local symbol, and we must make a
|
GOT entry for it, so handle it like a GOT reloc. */
|
GOT entry for it, so handle it like a GOT reloc. */
|
/* Fall through. */
|
/* Fall through. */
|
|
|
case R_CRIS_16_GOT:
|
case R_CRIS_16_GOT:
|
case R_CRIS_32_GOT:
|
case R_CRIS_32_GOT:
|
/* This symbol requires a global offset table entry. */
|
/* This symbol requires a global offset table entry. */
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
if (h->got.refcount == 0)
|
if (h->got.refcount == 0)
|
{
|
{
|
/* Make sure this symbol is output as a dynamic symbol. */
|
/* Make sure this symbol is output as a dynamic symbol. */
|
if (h->dynindx == -1)
|
if (h->dynindx == -1)
|
{
|
{
|
if (!bfd_elf_link_record_dynamic_symbol (info, h))
|
if (!bfd_elf_link_record_dynamic_symbol (info, h))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
/* Allocate space in the .got section. */
|
/* Allocate space in the .got section. */
|
sgot->size += 4;
|
sgot->size += 4;
|
/* Allocate relocation space. */
|
/* Allocate relocation space. */
|
srelgot->size += sizeof (Elf32_External_Rela);
|
srelgot->size += sizeof (Elf32_External_Rela);
|
}
|
}
|
h->got.refcount++;
|
h->got.refcount++;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* This is a global offset table entry for a local symbol. */
|
/* This is a global offset table entry for a local symbol. */
|
if (local_got_refcounts[r_symndx] == 0)
|
if (local_got_refcounts[r_symndx] == 0)
|
{
|
{
|
sgot->size += 4;
|
sgot->size += 4;
|
if (info->shared)
|
if (info->shared)
|
{
|
{
|
/* If we are generating a shared object, we need to
|
/* If we are generating a shared object, we need to
|
output a R_CRIS_RELATIVE reloc so that the dynamic
|
output a R_CRIS_RELATIVE reloc so that the dynamic
|
linker can adjust this GOT entry. */
|
linker can adjust this GOT entry. */
|
srelgot->size += sizeof (Elf32_External_Rela);
|
srelgot->size += sizeof (Elf32_External_Rela);
|
}
|
}
|
}
|
}
|
local_got_refcounts[r_symndx]++;
|
local_got_refcounts[r_symndx]++;
|
}
|
}
|
break;
|
break;
|
|
|
case R_CRIS_32_GOTREL:
|
case R_CRIS_32_GOTREL:
|
/* This reference requires a global offset table.
|
/* This reference requires a global offset table.
|
FIXME: The actual refcount isn't used currently; the .got
|
FIXME: The actual refcount isn't used currently; the .got
|
section can't be removed if there were any references in the
|
section can't be removed if there were any references in the
|
input. */
|
input. */
|
local_got_refcounts[-1]++;
|
local_got_refcounts[-1]++;
|
break;
|
break;
|
|
|
handle_gotplt_reloc:
|
handle_gotplt_reloc:
|
|
|
case R_CRIS_32_PLT_GOTREL:
|
case R_CRIS_32_PLT_GOTREL:
|
/* This reference requires a global offset table. */
|
/* This reference requires a global offset table. */
|
local_got_refcounts[-1]++;
|
local_got_refcounts[-1]++;
|
/* Fall through. */
|
/* Fall through. */
|
|
|
case R_CRIS_32_PLT_PCREL:
|
case R_CRIS_32_PLT_PCREL:
|
/* 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. */
|
|
|
/* Beware: if we'd check for visibility of the symbol here
|
/* Beware: if we'd check for visibility of the symbol here
|
(and not marking the need for a PLT when non-visible), we'd
|
(and not marking the need for a PLT when non-visible), we'd
|
get into trouble with keeping handling consistent with
|
get into trouble with keeping handling consistent with
|
regards to relocs found before definition and GOTPLT
|
regards to relocs found before definition and GOTPLT
|
handling. Eliminable PLT entries will be dealt with later
|
handling. Eliminable PLT entries will be dealt with later
|
anyway. */
|
anyway. */
|
if (h == NULL)
|
if (h == NULL)
|
continue;
|
continue;
|
|
|
h->needs_plt = 1;
|
h->needs_plt = 1;
|
h->plt.refcount++;
|
h->plt.refcount++;
|
break;
|
break;
|
|
|
case R_CRIS_8:
|
case R_CRIS_8:
|
case R_CRIS_16:
|
case R_CRIS_16:
|
case R_CRIS_32:
|
case R_CRIS_32:
|
/* Let's help debug shared library creation. Any of these
|
/* Let's help debug shared library creation. Any of these
|
relocs can be used in shared libs, but pages containing them
|
relocs can be used in shared libs, but pages containing them
|
cannot be shared. Don't warn for sections we don't care
|
cannot be shared. Don't warn for sections we don't care
|
about, such as debug sections or non-constant sections. We
|
about, such as debug sections or non-constant sections. We
|
can't help tables of (global) function pointers, for example,
|
can't help tables of (global) function pointers, for example,
|
though they must be emitted in a data section to avoid having
|
though they must be emitted in a data section to avoid having
|
impure text sections. */
|
impure text sections. */
|
if (info->shared
|
if (info->shared
|
&& (sec->flags & SEC_ALLOC) != 0
|
&& (sec->flags & SEC_ALLOC) != 0
|
&& (sec->flags & SEC_READONLY) != 0)
|
&& (sec->flags & SEC_READONLY) != 0)
|
{
|
{
|
/* FIXME: How do we make this optionally a warning only? */
|
/* FIXME: How do we make this optionally a warning only? */
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B, section %A:\n relocation %s should not"
|
(_("%B, section %A:\n relocation %s should not"
|
" be used in a shared object; recompile with -fPIC"),
|
" be used in a shared object; recompile with -fPIC"),
|
abfd,
|
abfd,
|
sec,
|
sec,
|
cris_elf_howto_table[r_type].name);
|
cris_elf_howto_table[r_type].name);
|
}
|
}
|
/* Fall through. */
|
/* Fall through. */
|
|
|
case R_CRIS_8_PCREL:
|
case R_CRIS_8_PCREL:
|
case R_CRIS_16_PCREL:
|
case R_CRIS_16_PCREL:
|
case R_CRIS_32_PCREL:
|
case R_CRIS_32_PCREL:
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
h->non_got_ref = 1;
|
h->non_got_ref = 1;
|
|
|
/* 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 (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
|
if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
|
h->plt.refcount++;
|
h->plt.refcount++;
|
}
|
}
|
|
|
/* 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). In case of a weak
|
will be set later (it is never cleared). In case of a weak
|
definition, DEF_REGULAR may be cleared later by a strong
|
definition, DEF_REGULAR may be cleared later by a strong
|
definition in a shared library. We account for that
|
definition in a shared library. We account for that
|
possibility below by storing information in the relocs_copied
|
possibility below by storing information in the relocs_copied
|
field of the hash table entry. A similar situation occurs
|
field of the hash table entry. A similar situation occurs
|
when creating shared libraries and symbol visibility changes
|
when creating shared libraries and symbol visibility changes
|
render the symbol local. */
|
render the symbol local. */
|
|
|
/* No need to do anything if we're not creating a shared object. */
|
/* No need to do anything if we're not creating a shared object. */
|
if (! info->shared)
|
if (! info->shared)
|
break;
|
break;
|
|
|
/* We don't need to handle relocs into sections not going into
|
/* We don't need to handle relocs into sections not going into
|
the "real" output. */
|
the "real" output. */
|
if ((sec->flags & SEC_ALLOC) == 0)
|
if ((sec->flags & SEC_ALLOC) == 0)
|
break;
|
break;
|
|
|
/* We can only eliminate PC-relative relocs. */
|
/* We can only eliminate PC-relative relocs. */
|
if (r_type == R_CRIS_8_PCREL
|
if (r_type == R_CRIS_8_PCREL
|
|| r_type == R_CRIS_16_PCREL
|
|| r_type == R_CRIS_16_PCREL
|
|| r_type == R_CRIS_32_PCREL)
|
|| r_type == R_CRIS_32_PCREL)
|
{
|
{
|
/* If the symbol is local, then we can eliminate the reloc. */
|
/* If the symbol is local, then we can eliminate the reloc. */
|
if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
if (h == NULL || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
break;
|
break;
|
|
|
/* If this is with -Bsymbolic and the symbol isn't weak, and
|
/* If this is with -Bsymbolic and the symbol isn't weak, and
|
is defined by an ordinary object (the ones we include in
|
is defined by an ordinary object (the ones we include in
|
this shared library) then we can also eliminate the
|
this shared library) then we can also eliminate the
|
reloc. See comment above for more eliminable cases which
|
reloc. See comment above for more eliminable cases which
|
we can't identify at this time. */
|
we can't identify at this time. */
|
if (info->symbolic
|
if (info->symbolic
|
&& h->root.type != bfd_link_hash_defweak
|
&& h->root.type != bfd_link_hash_defweak
|
&& h->def_regular)
|
&& h->def_regular)
|
break;
|
break;
|
|
|
if ((sec->flags & SEC_READONLY) != 0)
|
if ((sec->flags & SEC_READONLY) != 0)
|
{
|
{
|
/* FIXME: How do we make this optionally a warning only? */
|
/* FIXME: How do we make this optionally a warning only? */
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(_("%B, section %A:\n relocation %s should not be used"
|
(_("%B, section %A:\n relocation %s should not be used"
|
" in a shared object; recompile with -fPIC"),
|
" in a shared object; recompile with -fPIC"),
|
abfd,
|
abfd,
|
sec,
|
sec,
|
cris_elf_howto_table[r_type].name);
|
cris_elf_howto_table[r_type].name);
|
}
|
}
|
}
|
}
|
|
|
/* We create a reloc section in dynobj and make room for this
|
/* We create a reloc section in dynobj and make room for this
|
reloc. */
|
reloc. */
|
if (sreloc == NULL)
|
if (sreloc == NULL)
|
{
|
{
|
const char *name;
|
const char *name;
|
|
|
name = (bfd_elf_string_from_elf_section
|
name = (bfd_elf_string_from_elf_section
|
(abfd,
|
(abfd,
|
elf_elfheader (abfd)->e_shstrndx,
|
elf_elfheader (abfd)->e_shstrndx,
|
elf_section_data (sec)->rel_hdr.sh_name));
|
elf_section_data (sec)->rel_hdr.sh_name));
|
if (name == NULL)
|
if (name == NULL)
|
return FALSE;
|
return FALSE;
|
|
|
BFD_ASSERT (CONST_STRNEQ (name, ".rela")
|
BFD_ASSERT (CONST_STRNEQ (name, ".rela")
|
&& strcmp (bfd_get_section_name (abfd, sec),
|
&& strcmp (bfd_get_section_name (abfd, sec),
|
name + 5) == 0);
|
name + 5) == 0);
|
|
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
if (sreloc == NULL)
|
if (sreloc == NULL)
|
{
|
{
|
sreloc = bfd_make_section_with_flags (dynobj, name,
|
sreloc = bfd_make_section_with_flags (dynobj, name,
|
(SEC_ALLOC
|
(SEC_ALLOC
|
| SEC_LOAD
|
| SEC_LOAD
|
| SEC_HAS_CONTENTS
|
| SEC_HAS_CONTENTS
|
| SEC_IN_MEMORY
|
| SEC_IN_MEMORY
|
| SEC_LINKER_CREATED
|
| SEC_LINKER_CREATED
|
| SEC_READONLY));
|
| SEC_READONLY));
|
if (sreloc == NULL
|
if (sreloc == NULL
|
|| !bfd_set_section_alignment (dynobj, sreloc, 2))
|
|| !bfd_set_section_alignment (dynobj, sreloc, 2))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
if (sec->flags & SEC_READONLY)
|
if (sec->flags & SEC_READONLY)
|
info->flags |= DF_TEXTREL;
|
info->flags |= DF_TEXTREL;
|
}
|
}
|
|
|
sreloc->size += sizeof (Elf32_External_Rela);
|
sreloc->size += sizeof (Elf32_External_Rela);
|
|
|
/* If we are linking with -Bsymbolic, we count the number of PC
|
/* If we are linking with -Bsymbolic, we count the number of PC
|
relative relocations we have entered for this symbol, so that
|
relative relocations we have entered for this symbol, so that
|
we can discard them again if the symbol is later defined by a
|
we can discard them again if the symbol is later defined by a
|
regular object. We know that h is really a pointer to an
|
regular object. We know that h is really a pointer to an
|
elf_cris_link_hash_entry. */
|
elf_cris_link_hash_entry. */
|
if ((r_type == R_CRIS_8_PCREL
|
if ((r_type == R_CRIS_8_PCREL
|
|| r_type == R_CRIS_16_PCREL
|
|| r_type == R_CRIS_16_PCREL
|
|| r_type == R_CRIS_32_PCREL)
|
|| r_type == R_CRIS_32_PCREL)
|
&& info->symbolic)
|
&& info->symbolic)
|
{
|
{
|
struct elf_cris_link_hash_entry *eh;
|
struct elf_cris_link_hash_entry *eh;
|
struct elf_cris_pcrel_relocs_copied *p;
|
struct elf_cris_pcrel_relocs_copied *p;
|
|
|
eh = (struct elf_cris_link_hash_entry *) h;
|
eh = (struct elf_cris_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_cris_pcrel_relocs_copied *)
|
p = ((struct elf_cris_pcrel_relocs_copied *)
|
bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
|
bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
|
if (p == NULL)
|
if (p == NULL)
|
return FALSE;
|
return FALSE;
|
p->next = 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_CRIS_GNU_VTINHERIT:
|
case R_CRIS_GNU_VTINHERIT:
|
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
return FALSE;
|
return FALSE;
|
break;
|
break;
|
|
|
/* This relocation describes which C++ vtable entries are actually
|
/* This relocation describes which C++ vtable entries are actually
|
used. Record for later use during GC. */
|
used. Record for later use during GC. */
|
case R_CRIS_GNU_VTENTRY:
|
case R_CRIS_GNU_VTENTRY:
|
BFD_ASSERT (h != NULL);
|
BFD_ASSERT (h != NULL);
|
if (h != NULL
|
if (h != NULL
|
&& !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
&& !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
return FALSE;
|
return FALSE;
|
break;
|
break;
|
|
|
default:
|
default:
|
/* Other relocs do not appear here. */
|
/* Other relocs do not appear here. */
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Set the sizes of the dynamic sections. */
|
/* Set the sizes of the dynamic sections. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_cris_size_dynamic_sections (output_bfd, info)
|
elf_cris_size_dynamic_sections (output_bfd, info)
|
bfd *output_bfd ATTRIBUTE_UNUSED;
|
bfd *output_bfd ATTRIBUTE_UNUSED;
|
struct bfd_link_info *info;
|
struct bfd_link_info *info;
|
{
|
{
|
bfd *dynobj;
|
bfd *dynobj;
|
asection *s;
|
asection *s;
|
bfd_boolean plt;
|
bfd_boolean plt;
|
bfd_boolean relocs;
|
bfd_boolean relocs;
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
dynobj = elf_hash_table (info)->dynobj;
|
BFD_ASSERT (dynobj != NULL);
|
BFD_ASSERT (dynobj != NULL);
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
if (elf_hash_table (info)->dynamic_sections_created)
|
{
|
{
|
/* Set the contents of the .interp section to the interpreter. */
|
/* Set the contents of the .interp section to the interpreter. */
|
if (info->executable)
|
if (info->executable)
|
{
|
{
|
s = bfd_get_section_by_name (dynobj, ".interp");
|
s = bfd_get_section_by_name (dynobj, ".interp");
|
BFD_ASSERT (s != NULL);
|
BFD_ASSERT (s != NULL);
|
s->size = sizeof ELF_DYNAMIC_INTERPRETER;
|
s->size = sizeof ELF_DYNAMIC_INTERPRETER;
|
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
|
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
/* Adjust all expected GOTPLT uses to use a GOT entry instead. */
|
/* Adjust all expected GOTPLT uses to use a GOT entry instead. */
|
elf_cris_link_hash_traverse (elf_cris_hash_table (info),
|
elf_cris_link_hash_traverse (elf_cris_hash_table (info),
|
elf_cris_adjust_gotplt_to_got,
|
elf_cris_adjust_gotplt_to_got,
|
(PTR) info);
|
(PTR) info);
|
|
|
/* We may have created entries in the .rela.got section.
|
/* We may have created entries in the .rela.got section.
|
However, if we are not creating the dynamic sections, we will
|
However, if we are not creating the dynamic sections, we will
|
not actually use these entries. Reset the size of .rela.got,
|
not actually use these entries. Reset the size of .rela.got,
|
which will cause it to get stripped from the output file
|
which will cause it to get stripped from the output file
|
below. */
|
below. */
|
s = bfd_get_section_by_name (dynobj, ".rela.got");
|
s = bfd_get_section_by_name (dynobj, ".rela.got");
|
if (s != NULL)
|
if (s != NULL)
|
s->size = 0;
|
s->size = 0;
|
}
|
}
|
|
|
/* If this is a -Bsymbolic shared link, then we need to discard all 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. We also discard space
|
fill them in in the relocate_section routine. We also discard space
|
for relocs that have become for local symbols due to symbol
|
for relocs that have become for local symbols due to symbol
|
visibility changes. For programs, we discard space for relocs for
|
visibility changes. For programs, we discard space for relocs for
|
symbols not referenced by any dynamic object. */
|
symbols not referenced by any dynamic object. */
|
if (info->shared)
|
if (info->shared)
|
elf_cris_link_hash_traverse (elf_cris_hash_table (info),
|
elf_cris_link_hash_traverse (elf_cris_hash_table (info),
|
elf_cris_discard_excess_dso_dynamics,
|
elf_cris_discard_excess_dso_dynamics,
|
(PTR) info);
|
(PTR) info);
|
else
|
else
|
elf_cris_link_hash_traverse (elf_cris_hash_table (info),
|
elf_cris_link_hash_traverse (elf_cris_hash_table (info),
|
elf_cris_discard_excess_program_dynamics,
|
elf_cris_discard_excess_program_dynamics,
|
(PTR) info);
|
(PTR) info);
|
|
|
/* The check_relocs and adjust_dynamic_symbol entry points have
|
/* The check_relocs and adjust_dynamic_symbol entry points have
|
determined the sizes of the various dynamic sections. Allocate
|
determined the sizes of the various dynamic sections. Allocate
|
memory for them. */
|
memory for them. */
|
plt = FALSE;
|
plt = FALSE;
|
relocs = FALSE;
|
relocs = FALSE;
|
for (s = dynobj->sections; s != NULL; s = s->next)
|
for (s = dynobj->sections; s != NULL; s = s->next)
|
{
|
{
|
const char *name;
|
const char *name;
|
|
|
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
continue;
|
continue;
|
|
|
/* It's OK to base decisions on the section name, because none
|
/* It's OK to base decisions on the section name, because none
|
of the dynobj section names depend upon the input files. */
|
of the dynobj section names depend upon the input files. */
|
name = bfd_get_section_name (dynobj, s);
|
name = bfd_get_section_name (dynobj, s);
|
|
|
if (strcmp (name, ".plt") == 0)
|
if (strcmp (name, ".plt") == 0)
|
{
|
{
|
/* Remember whether there is a PLT. */
|
/* Remember whether there is a PLT. */
|
plt = s->size != 0;
|
plt = s->size != 0;
|
}
|
}
|
else if (CONST_STRNEQ (name, ".rela"))
|
else if (CONST_STRNEQ (name, ".rela"))
|
{
|
{
|
if (s->size != 0)
|
if (s->size != 0)
|
{
|
{
|
/* 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)
|
relocs = TRUE;
|
relocs = TRUE;
|
|
|
/* We use the reloc_count field as a counter if we need
|
/* We use the reloc_count field as a counter if we need
|
to copy relocs into the output file. */
|
to copy relocs into the output file. */
|
s->reloc_count = 0;
|
s->reloc_count = 0;
|
}
|
}
|
}
|
}
|
else if (! CONST_STRNEQ (name, ".got")
|
else if (! CONST_STRNEQ (name, ".got")
|
&& strcmp (name, ".dynbss") != 0)
|
&& strcmp (name, ".dynbss") != 0)
|
{
|
{
|
/* It's not one of our sections, so don't allocate space. */
|
/* It's not one of our sections, so don't allocate space. */
|
continue;
|
continue;
|
}
|
}
|
|
|
if (s->size == 0)
|
if (s->size == 0)
|
{
|
{
|
/* If we don't need this section, strip it from the
|
/* If we don't need this section, strip it from the
|
output file. This is mostly to handle .rela.bss and
|
output file. This is mostly to handle .rela.bss and
|
.rela.plt. We must create both sections in
|
.rela.plt. We must create both sections in
|
create_dynamic_sections, because they must be created
|
create_dynamic_sections, because they must be created
|
before the linker maps input sections to output
|
before the linker maps input sections to output
|
sections. The linker does that before
|
sections. The linker does that before
|
adjust_dynamic_symbol is called, and it is that
|
adjust_dynamic_symbol is called, and it is that
|
function which decides whether anything needs to go
|
function which decides whether anything needs to go
|
into these sections. */
|
into these sections. */
|
s->flags |= SEC_EXCLUDE;
|
s->flags |= SEC_EXCLUDE;
|
continue;
|
continue;
|
}
|
}
|
|
|
if ((s->flags & SEC_HAS_CONTENTS) == 0)
|
if ((s->flags & SEC_HAS_CONTENTS) == 0)
|
continue;
|
continue;
|
|
|
/* Allocate memory for the section contents. We use bfd_zalloc here
|
/* Allocate memory for the section contents. We use bfd_zalloc here
|
in case unused entries are not reclaimed before the section's
|
in case unused entries are not reclaimed before the section's
|
contents are written out. This should not happen, but this way
|
contents are written out. This should not happen, but this way
|
if it does, we will not write out garbage. For reloc sections,
|
if it does, we will not write out garbage. For reloc sections,
|
this will make entries have the type R_CRIS_NONE. */
|
this will make entries have the type R_CRIS_NONE. */
|
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
|
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
|
if (s->contents == NULL)
|
if (s->contents == NULL)
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
if (elf_hash_table (info)->dynamic_sections_created)
|
{
|
{
|
/* Add some entries to the .dynamic section. We fill in the
|
/* Add some entries to the .dynamic section. We fill in the
|
values later, in elf_cris_finish_dynamic_sections, but we
|
values later, in elf_cris_finish_dynamic_sections, but we
|
must add the entries now so that we get the correct size for
|
must add the entries now so that we get the correct size for
|
the .dynamic section. The DT_DEBUG entry is filled in by the
|
the .dynamic section. The DT_DEBUG entry is filled in by the
|
dynamic linker and used by the debugger. */
|
dynamic linker and used by the debugger. */
|
#define add_dynamic_entry(TAG, VAL) \
|
#define add_dynamic_entry(TAG, VAL) \
|
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
|
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
|
|
|
if (!info->shared)
|
if (!info->shared)
|
{
|
{
|
if (!add_dynamic_entry (DT_DEBUG, 0))
|
if (!add_dynamic_entry (DT_DEBUG, 0))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (plt)
|
if (plt)
|
{
|
{
|
if (!add_dynamic_entry (DT_PLTGOT, 0)
|
if (!add_dynamic_entry (DT_PLTGOT, 0)
|
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|
|| !add_dynamic_entry (DT_PLTREL, DT_RELA)
|
|| !add_dynamic_entry (DT_PLTREL, DT_RELA)
|
|| !add_dynamic_entry (DT_JMPREL, 0))
|
|| !add_dynamic_entry (DT_JMPREL, 0))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (relocs)
|
if (relocs)
|
{
|
{
|
if (!add_dynamic_entry (DT_RELA, 0)
|
if (!add_dynamic_entry (DT_RELA, 0)
|
|| !add_dynamic_entry (DT_RELASZ, 0)
|
|| !add_dynamic_entry (DT_RELASZ, 0)
|
|| !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
|
|| !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if ((info->flags & DF_TEXTREL) != 0)
|
if ((info->flags & DF_TEXTREL) != 0)
|
{
|
{
|
if (!add_dynamic_entry (DT_TEXTREL, 0))
|
if (!add_dynamic_entry (DT_TEXTREL, 0))
|
return FALSE;
|
return FALSE;
|
info->flags |= DF_TEXTREL;
|
info->flags |= DF_TEXTREL;
|
}
|
}
|
}
|
}
|
#undef add_dynamic_entry
|
#undef add_dynamic_entry
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* This function is called via elf_cris_link_hash_traverse if we are
|
/* This function is called via elf_cris_link_hash_traverse if we are
|
creating a shared object. In the -Bsymbolic case, it discards the
|
creating a shared object. In the -Bsymbolic case, it discards the
|
space allocated to copy PC relative relocs against symbols which
|
space allocated to copy PC relative relocs against symbols which
|
are defined in regular objects. For the normal non-symbolic case,
|
are defined in regular objects. For the normal non-symbolic case,
|
we also discard space for relocs that have become local due to
|
we also discard space for relocs that have become local due to
|
symbol visibility changes. We allocated space for them in the
|
symbol visibility changes. We allocated space for them in the
|
check_relocs routine, but we won't fill them in in the
|
check_relocs routine, but we won't fill them in in the
|
relocate_section routine. */
|
relocate_section routine. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_cris_discard_excess_dso_dynamics (h, inf)
|
elf_cris_discard_excess_dso_dynamics (h, inf)
|
struct elf_cris_link_hash_entry *h;
|
struct elf_cris_link_hash_entry *h;
|
PTR inf;
|
PTR inf;
|
{
|
{
|
struct elf_cris_pcrel_relocs_copied *s;
|
struct elf_cris_pcrel_relocs_copied *s;
|
struct bfd_link_info *info = (struct bfd_link_info *) inf;
|
struct bfd_link_info *info = (struct bfd_link_info *) inf;
|
|
|
if (h->root.root.type == bfd_link_hash_warning)
|
if (h->root.root.type == bfd_link_hash_warning)
|
h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
|
h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
|
|
|
/* If a symbol has been forced local or we have found a regular
|
/* If a symbol has been forced local or we have found a regular
|
definition for the symbolic link case, then we won't be needing
|
definition for the symbolic link case, then we won't be needing
|
any relocs. */
|
any relocs. */
|
if (h->root.def_regular
|
if (h->root.def_regular
|
&& (h->root.forced_local
|
&& (h->root.forced_local
|
|| info->symbolic))
|
|| info->symbolic))
|
{
|
{
|
for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
|
for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
|
s->section->size -= s->count * sizeof (Elf32_External_Rela);
|
s->section->size -= s->count * sizeof (Elf32_External_Rela);
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* This function is called via elf_cris_link_hash_traverse if we are *not*
|
/* This function is called via elf_cris_link_hash_traverse if we are *not*
|
creating a shared object. We discard space for relocs for symbols put
|
creating a shared object. We discard space for relocs for symbols put
|
in the .got, but which we found we do not have to resolve at run-time. */
|
in the .got, but which we found we do not have to resolve at run-time. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
elf_cris_discard_excess_program_dynamics (h, inf)
|
elf_cris_discard_excess_program_dynamics (h, inf)
|
struct elf_cris_link_hash_entry *h;
|
struct elf_cris_link_hash_entry *h;
|
PTR inf;
|
PTR inf;
|
{
|
{
|
struct bfd_link_info *info = (struct bfd_link_info *) inf;
|
struct bfd_link_info *info = (struct bfd_link_info *) inf;
|
|
|
if (h->root.root.type == bfd_link_hash_warning)
|
if (h->root.root.type == bfd_link_hash_warning)
|
h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
|
h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
|
|
|
/* If we're not creating a shared library and have a symbol which is
|
/* If we're not creating a shared library and have a symbol which is
|
referred to by .got references, but the symbol is defined locally,
|
referred to by .got references, but the symbol is defined locally,
|
(or rather, not defined by a DSO) then lose the reloc for the .got
|
(or rather, not defined by a DSO) then lose the reloc for the .got
|
(don't allocate room for it). Likewise for relocs for something
|
(don't allocate room for it). Likewise for relocs for something
|
for which we create a PLT. */
|
for which we create a PLT. */
|
if (!h->root.def_dynamic
|
if (!h->root.def_dynamic
|
|| h->root.plt.refcount > 0)
|
|| h->root.plt.refcount > 0)
|
{
|
{
|
if (h->root.got.refcount > 0
|
if (h->root.got.refcount > 0
|
/* The size of this section is only valid and in sync with the
|
/* The size of this section is only valid and in sync with the
|
various reference counts if we do dynamic; don't decrement it
|
various reference counts if we do dynamic; don't decrement it
|
otherwise. */
|
otherwise. */
|
&& elf_hash_table (info)->dynamic_sections_created)
|
&& elf_hash_table (info)->dynamic_sections_created)
|
{
|
{
|
bfd *dynobj = elf_hash_table (info)->dynobj;
|
bfd *dynobj = elf_hash_table (info)->dynobj;
|
asection *srelgot;
|
asection *srelgot;
|
|
|
BFD_ASSERT (dynobj != NULL);
|
BFD_ASSERT (dynobj != NULL);
|
|
|
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);
|
|
|
srelgot->size -= sizeof (Elf32_External_Rela);
|
srelgot->size -= sizeof (Elf32_External_Rela);
|
}
|
}
|
|
|
/* If the locally-defined symbol isn't used by a DSO, then we don't
|
/* If the locally-defined symbol isn't used by a DSO, then we don't
|
have to export it as a dynamic symbol. This was already done for
|
have to export it as a dynamic symbol. This was already done for
|
functions; doing this for all symbols would presumably not
|
functions; doing this for all symbols would presumably not
|
introduce new problems. Of course we don't do this if we're
|
introduce new problems. Of course we don't do this if we're
|
exporting all dynamic symbols. */
|
exporting all dynamic symbols. */
|
if (! info->export_dynamic
|
if (! info->export_dynamic
|
&& h->root.dynindx != -1
|
&& h->root.dynindx != -1
|
&& !h->root.def_dynamic
|
&& !h->root.def_dynamic
|
&& !h->root.ref_dynamic)
|
&& !h->root.ref_dynamic)
|
{
|
{
|
h->root.dynindx = -1;
|
h->root.dynindx = -1;
|
_bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
|
_bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
|
h->root.dynstr_index);
|
h->root.dynstr_index);
|
}
|
}
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Reject a file depending on presence and expectation of prefixed
|
/* Reject a file depending on presence and expectation of prefixed
|
underscores on symbols. */
|
underscores on symbols. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
cris_elf_object_p (abfd)
|
cris_elf_object_p (abfd)
|
bfd *abfd;
|
bfd *abfd;
|
{
|
{
|
if (! cris_elf_set_mach_from_flags (abfd, elf_elfheader (abfd)->e_flags))
|
if (! cris_elf_set_mach_from_flags (abfd, elf_elfheader (abfd)->e_flags))
|
return FALSE;
|
return FALSE;
|
|
|
if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
|
if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
|
return (bfd_get_symbol_leading_char (abfd) == '_');
|
return (bfd_get_symbol_leading_char (abfd) == '_');
|
else
|
else
|
return (bfd_get_symbol_leading_char (abfd) == 0);
|
return (bfd_get_symbol_leading_char (abfd) == 0);
|
}
|
}
|
|
|
/* Mark presence or absence of leading underscore. Set machine type
|
/* Mark presence or absence of leading underscore. Set machine type
|
flags from mach type. */
|
flags from mach type. */
|
|
|
static void
|
static void
|
cris_elf_final_write_processing (abfd, linker)
|
cris_elf_final_write_processing (abfd, linker)
|
bfd *abfd;
|
bfd *abfd;
|
bfd_boolean linker ATTRIBUTE_UNUSED;
|
bfd_boolean linker ATTRIBUTE_UNUSED;
|
{
|
{
|
unsigned long e_flags = elf_elfheader (abfd)->e_flags;
|
unsigned long e_flags = elf_elfheader (abfd)->e_flags;
|
|
|
e_flags &= ~EF_CRIS_UNDERSCORE;
|
e_flags &= ~EF_CRIS_UNDERSCORE;
|
if (bfd_get_symbol_leading_char (abfd) == '_')
|
if (bfd_get_symbol_leading_char (abfd) == '_')
|
e_flags |= EF_CRIS_UNDERSCORE;
|
e_flags |= EF_CRIS_UNDERSCORE;
|
|
|
switch (bfd_get_mach (abfd))
|
switch (bfd_get_mach (abfd))
|
{
|
{
|
case bfd_mach_cris_v0_v10:
|
case bfd_mach_cris_v0_v10:
|
e_flags |= EF_CRIS_VARIANT_ANY_V0_V10;
|
e_flags |= EF_CRIS_VARIANT_ANY_V0_V10;
|
break;
|
break;
|
|
|
case bfd_mach_cris_v10_v32:
|
case bfd_mach_cris_v10_v32:
|
e_flags |= EF_CRIS_VARIANT_COMMON_V10_V32;
|
e_flags |= EF_CRIS_VARIANT_COMMON_V10_V32;
|
break;
|
break;
|
|
|
case bfd_mach_cris_v32:
|
case bfd_mach_cris_v32:
|
e_flags |= EF_CRIS_VARIANT_V32;
|
e_flags |= EF_CRIS_VARIANT_V32;
|
break;
|
break;
|
|
|
default:
|
default:
|
_bfd_abort (__FILE__, __LINE__,
|
_bfd_abort (__FILE__, __LINE__,
|
_("Unexpected machine number"));
|
_("Unexpected machine number"));
|
}
|
}
|
|
|
elf_elfheader (abfd)->e_flags = e_flags;
|
elf_elfheader (abfd)->e_flags = e_flags;
|
}
|
}
|
|
|
/* Set the mach type from e_flags value. */
|
/* Set the mach type from e_flags value. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
cris_elf_set_mach_from_flags (abfd, flags)
|
cris_elf_set_mach_from_flags (abfd, flags)
|
bfd *abfd;
|
bfd *abfd;
|
unsigned long flags;
|
unsigned long flags;
|
{
|
{
|
switch (flags & EF_CRIS_VARIANT_MASK)
|
switch (flags & EF_CRIS_VARIANT_MASK)
|
{
|
{
|
case EF_CRIS_VARIANT_ANY_V0_V10:
|
case EF_CRIS_VARIANT_ANY_V0_V10:
|
bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v0_v10);
|
bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v0_v10);
|
break;
|
break;
|
|
|
case EF_CRIS_VARIANT_V32:
|
case EF_CRIS_VARIANT_V32:
|
bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v32);
|
bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v32);
|
break;
|
break;
|
|
|
case EF_CRIS_VARIANT_COMMON_V10_V32:
|
case EF_CRIS_VARIANT_COMMON_V10_V32:
|
bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v10_v32);
|
bfd_default_set_arch_mach (abfd, bfd_arch_cris, bfd_mach_cris_v10_v32);
|
break;
|
break;
|
|
|
default:
|
default:
|
/* Since we don't recognize them, we obviously can't support them
|
/* Since we don't recognize them, we obviously can't support them
|
with this code; we'd have to require that all future handling
|
with this code; we'd have to require that all future handling
|
would be optional. */
|
would be optional. */
|
bfd_set_error (bfd_error_wrong_format);
|
bfd_set_error (bfd_error_wrong_format);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Display the flags field. */
|
/* Display the flags field. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
cris_elf_print_private_bfd_data (abfd, ptr)
|
cris_elf_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);
|
|
|
_bfd_elf_print_private_bfd_data (abfd, ptr);
|
_bfd_elf_print_private_bfd_data (abfd, ptr);
|
|
|
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_CRIS_UNDERSCORE)
|
if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)
|
fprintf (file, _(" [symbols have a _ prefix]"));
|
fprintf (file, _(" [symbols have a _ prefix]"));
|
if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
|
if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
|
== EF_CRIS_VARIANT_COMMON_V10_V32)
|
== EF_CRIS_VARIANT_COMMON_V10_V32)
|
fprintf (file, _(" [v10 and v32]"));
|
fprintf (file, _(" [v10 and v32]"));
|
if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
|
if ((elf_elfheader (abfd)->e_flags & EF_CRIS_VARIANT_MASK)
|
== EF_CRIS_VARIANT_V32)
|
== EF_CRIS_VARIANT_V32)
|
fprintf (file, _(" [v32]"));
|
fprintf (file, _(" [v32]"));
|
|
|
fputc ('\n', file);
|
fputc ('\n', file);
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Don't mix files with and without a leading underscore. */
|
/* Don't mix files with and without a leading underscore. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
cris_elf_merge_private_bfd_data (ibfd, obfd)
|
cris_elf_merge_private_bfd_data (ibfd, obfd)
|
bfd *ibfd;
|
bfd *ibfd;
|
bfd *obfd;
|
bfd *obfd;
|
{
|
{
|
int imach, omach;
|
int imach, omach;
|
|
|
if (! _bfd_generic_verify_endian_match (ibfd, obfd))
|
if (! _bfd_generic_verify_endian_match (ibfd, obfd))
|
return FALSE;
|
return FALSE;
|
|
|
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;
|
|
|
imach = bfd_get_mach (ibfd);
|
imach = bfd_get_mach (ibfd);
|
|
|
if (! elf_flags_init (obfd))
|
if (! elf_flags_init (obfd))
|
{
|
{
|
/* This happens when ld starts out with a 'blank' output file. */
|
/* This happens when ld starts out with a 'blank' output file. */
|
elf_flags_init (obfd) = TRUE;
|
elf_flags_init (obfd) = TRUE;
|
|
|
/* We ignore the linker-set mach, and instead set it according to
|
/* We ignore the linker-set mach, and instead set it according to
|
the first input file. This would also happen if we could
|
the first input file. This would also happen if we could
|
somehow filter out the OUTPUT_ARCH () setting from elf.sc.
|
somehow filter out the OUTPUT_ARCH () setting from elf.sc.
|
This allows us to keep the same linker config across
|
This allows us to keep the same linker config across
|
cris(v0..v10) and crisv32. The drawback is that we can't force
|
cris(v0..v10) and crisv32. The drawback is that we can't force
|
the output type, which might be a sane thing to do for a
|
the output type, which might be a sane thing to do for a
|
v10+v32 compatibility object. */
|
v10+v32 compatibility object. */
|
if (! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
|
if (! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
if (bfd_get_symbol_leading_char (ibfd)
|
if (bfd_get_symbol_leading_char (ibfd)
|
!= bfd_get_symbol_leading_char (obfd))
|
!= bfd_get_symbol_leading_char (obfd))
|
{
|
{
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
(bfd_get_symbol_leading_char (ibfd) == '_'
|
(bfd_get_symbol_leading_char (ibfd) == '_'
|
? _("%B: uses _-prefixed symbols, but writing file with non-prefixed symbols")
|
? _("%B: uses _-prefixed symbols, but writing file with non-prefixed symbols")
|
: _("%B: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
|
: _("%B: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
|
ibfd);
|
ibfd);
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
omach = bfd_get_mach (obfd);
|
omach = bfd_get_mach (obfd);
|
|
|
if (imach != omach)
|
if (imach != omach)
|
{
|
{
|
/* We can get an incompatible combination only if either is
|
/* We can get an incompatible combination only if either is
|
bfd_mach_cris_v32, and the other one isn't compatible. */
|
bfd_mach_cris_v32, and the other one isn't compatible. */
|
if ((imach == bfd_mach_cris_v32
|
if ((imach == bfd_mach_cris_v32
|
&& omach != bfd_mach_cris_v10_v32)
|
&& omach != bfd_mach_cris_v10_v32)
|
|| (omach == bfd_mach_cris_v32
|
|| (omach == bfd_mach_cris_v32
|
&& imach != bfd_mach_cris_v10_v32))
|
&& imach != bfd_mach_cris_v10_v32))
|
{
|
{
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
((imach == bfd_mach_cris_v32)
|
((imach == bfd_mach_cris_v32)
|
? _("%B contains CRIS v32 code, incompatible"
|
? _("%B contains CRIS v32 code, incompatible"
|
" with previous objects")
|
" with previous objects")
|
: _("%B contains non-CRIS-v32 code, incompatible"
|
: _("%B contains non-CRIS-v32 code, incompatible"
|
" with previous objects"),
|
" with previous objects"),
|
ibfd);
|
ibfd);
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
/* We don't have to check the case where the input is compatible
|
/* We don't have to check the case where the input is compatible
|
with v10 and v32, because the output is already known to be set
|
with v10 and v32, because the output is already known to be set
|
to the other (compatible) mach. */
|
to the other (compatible) mach. */
|
if (omach == bfd_mach_cris_v10_v32
|
if (omach == bfd_mach_cris_v10_v32
|
&& ! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
|
&& ! bfd_set_arch_mach (obfd, bfd_arch_cris, imach))
|
return FALSE;
|
return FALSE;
|
}
|
}
|
|
|
return TRUE;
|
return TRUE;
|
}
|
}
|
|
|
/* Do side-effects of e_flags copying to obfd. */
|
/* Do side-effects of e_flags copying to obfd. */
|
|
|
static bfd_boolean
|
static bfd_boolean
|
cris_elf_copy_private_bfd_data (ibfd, obfd)
|
cris_elf_copy_private_bfd_data (ibfd, obfd)
|
bfd *ibfd;
|
bfd *ibfd;
|
bfd *obfd;
|
bfd *obfd;
|
{
|
{
|
/* Call the base function. */
|
/* Call the base function. */
|
if (!_bfd_elf_copy_private_bfd_data (ibfd, obfd))
|
if (!_bfd_elf_copy_private_bfd_data (ibfd, obfd))
|
return FALSE;
|
return FALSE;
|
|
|
/* If output is big-endian for some obscure reason, stop here. */
|
/* If output is big-endian for some obscure reason, stop here. */
|
if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE)
|
if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE)
|
return FALSE;
|
return FALSE;
|
|
|
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;
|
|
|
/* Do what we really came here for. */
|
/* Do what we really came here for. */
|
return bfd_set_arch_mach (obfd, bfd_arch_cris, bfd_get_mach (ibfd));
|
return bfd_set_arch_mach (obfd, bfd_arch_cris, bfd_get_mach (ibfd));
|
}
|
}
|
|
|
static enum elf_reloc_type_class
|
static enum elf_reloc_type_class
|
elf_cris_reloc_type_class (rela)
|
elf_cris_reloc_type_class (rela)
|
const Elf_Internal_Rela *rela;
|
const Elf_Internal_Rela *rela;
|
{
|
{
|
switch ((int) ELF32_R_TYPE (rela->r_info))
|
switch ((int) ELF32_R_TYPE (rela->r_info))
|
{
|
{
|
case R_CRIS_RELATIVE:
|
case R_CRIS_RELATIVE:
|
return reloc_class_relative;
|
return reloc_class_relative;
|
case R_CRIS_JUMP_SLOT:
|
case R_CRIS_JUMP_SLOT:
|
return reloc_class_plt;
|
return reloc_class_plt;
|
case R_CRIS_COPY:
|
case R_CRIS_COPY:
|
return reloc_class_copy;
|
return reloc_class_copy;
|
default:
|
default:
|
return reloc_class_normal;
|
return reloc_class_normal;
|
}
|
}
|
}
|
}
|
|
|
#define ELF_ARCH bfd_arch_cris
|
#define ELF_ARCH bfd_arch_cris
|
#define ELF_MACHINE_CODE EM_CRIS
|
#define ELF_MACHINE_CODE EM_CRIS
|
#define ELF_MAXPAGESIZE 0x2000
|
#define ELF_MAXPAGESIZE 0x2000
|
|
|
#define TARGET_LITTLE_SYM bfd_elf32_cris_vec
|
#define TARGET_LITTLE_SYM bfd_elf32_cris_vec
|
#define TARGET_LITTLE_NAME "elf32-cris"
|
#define TARGET_LITTLE_NAME "elf32-cris"
|
#define elf_symbol_leading_char 0
|
#define elf_symbol_leading_char 0
|
|
|
#define elf_info_to_howto_rel NULL
|
#define elf_info_to_howto_rel NULL
|
#define elf_info_to_howto cris_info_to_howto_rela
|
#define elf_info_to_howto cris_info_to_howto_rela
|
#define elf_backend_relocate_section cris_elf_relocate_section
|
#define elf_backend_relocate_section cris_elf_relocate_section
|
#define elf_backend_gc_mark_hook cris_elf_gc_mark_hook
|
#define elf_backend_gc_mark_hook cris_elf_gc_mark_hook
|
#define elf_backend_gc_sweep_hook cris_elf_gc_sweep_hook
|
#define elf_backend_gc_sweep_hook cris_elf_gc_sweep_hook
|
#define elf_backend_check_relocs cris_elf_check_relocs
|
#define elf_backend_check_relocs cris_elf_check_relocs
|
#define elf_backend_grok_prstatus cris_elf_grok_prstatus
|
#define elf_backend_grok_prstatus cris_elf_grok_prstatus
|
#define elf_backend_grok_psinfo cris_elf_grok_psinfo
|
#define elf_backend_grok_psinfo cris_elf_grok_psinfo
|
|
|
#define elf_backend_can_gc_sections 1
|
#define elf_backend_can_gc_sections 1
|
#define elf_backend_can_refcount 1
|
#define elf_backend_can_refcount 1
|
|
|
#define elf_backend_object_p cris_elf_object_p
|
#define elf_backend_object_p cris_elf_object_p
|
#define elf_backend_final_write_processing \
|
#define elf_backend_final_write_processing \
|
cris_elf_final_write_processing
|
cris_elf_final_write_processing
|
#define bfd_elf32_bfd_print_private_bfd_data \
|
#define bfd_elf32_bfd_print_private_bfd_data \
|
cris_elf_print_private_bfd_data
|
cris_elf_print_private_bfd_data
|
#define bfd_elf32_bfd_merge_private_bfd_data \
|
#define bfd_elf32_bfd_merge_private_bfd_data \
|
cris_elf_merge_private_bfd_data
|
cris_elf_merge_private_bfd_data
|
#define bfd_elf32_bfd_copy_private_bfd_data \
|
#define bfd_elf32_bfd_copy_private_bfd_data \
|
cris_elf_copy_private_bfd_data
|
cris_elf_copy_private_bfd_data
|
|
|
#define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup
|
#define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup
|
#define bfd_elf32_bfd_reloc_name_lookup cris_reloc_name_lookup
|
#define bfd_elf32_bfd_reloc_name_lookup cris_reloc_name_lookup
|
|
|
#define bfd_elf32_bfd_link_hash_table_create \
|
#define bfd_elf32_bfd_link_hash_table_create \
|
elf_cris_link_hash_table_create
|
elf_cris_link_hash_table_create
|
#define elf_backend_adjust_dynamic_symbol \
|
#define elf_backend_adjust_dynamic_symbol \
|
elf_cris_adjust_dynamic_symbol
|
elf_cris_adjust_dynamic_symbol
|
#define elf_backend_size_dynamic_sections \
|
#define elf_backend_size_dynamic_sections \
|
elf_cris_size_dynamic_sections
|
elf_cris_size_dynamic_sections
|
#define elf_backend_init_index_section _bfd_elf_init_1_index_section
|
#define elf_backend_init_index_section _bfd_elf_init_1_index_section
|
#define elf_backend_finish_dynamic_symbol \
|
#define elf_backend_finish_dynamic_symbol \
|
elf_cris_finish_dynamic_symbol
|
elf_cris_finish_dynamic_symbol
|
#define elf_backend_finish_dynamic_sections \
|
#define elf_backend_finish_dynamic_sections \
|
elf_cris_finish_dynamic_sections
|
elf_cris_finish_dynamic_sections
|
#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_final_link \
|
#define bfd_elf32_bfd_final_link \
|
bfd_elf_gc_common_final_link
|
bfd_elf_gc_common_final_link
|
#define elf_backend_hide_symbol elf_cris_hide_symbol
|
#define elf_backend_hide_symbol elf_cris_hide_symbol
|
#define elf_backend_reloc_type_class elf_cris_reloc_type_class
|
#define elf_backend_reloc_type_class elf_cris_reloc_type_class
|
|
|
#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
|
|
|
/* Later, we my want to optimize RELA entries into REL entries for dynamic
|
/* Later, we my want to optimize RELA entries into REL entries for dynamic
|
linking and libraries (if it's a win of any significance). Until then,
|
linking and libraries (if it's a win of any significance). Until then,
|
take the easy route. */
|
take the easy route. */
|
#define elf_backend_may_use_rel_p 0
|
#define elf_backend_may_use_rel_p 0
|
#define elf_backend_may_use_rela_p 1
|
#define elf_backend_may_use_rela_p 1
|
#define elf_backend_rela_normal 1
|
#define elf_backend_rela_normal 1
|
|
|
#include "elf32-target.h"
|
#include "elf32-target.h"
|
|
|
#undef TARGET_LITTLE_SYM
|
#undef TARGET_LITTLE_SYM
|
#undef TARGET_LITTLE_NAME
|
#undef TARGET_LITTLE_NAME
|
#undef elf_symbol_leading_char
|
#undef elf_symbol_leading_char
|
|
|
#define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
|
#define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
|
#define TARGET_LITTLE_NAME "elf32-us-cris"
|
#define TARGET_LITTLE_NAME "elf32-us-cris"
|
#define elf_symbol_leading_char '_'
|
#define elf_symbol_leading_char '_'
|
#undef elf32_bed
|
#undef elf32_bed
|
#define elf32_bed elf32_us_cris_bed
|
#define elf32_bed elf32_us_cris_bed
|
|
|
#include "elf32-target.h"
|
#include "elf32-target.h"
|
|
|
