/* Hitachi SH specific support for 32-bit ELF
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/* Hitachi SH specific support for 32-bit ELF
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Copyright 1996, 97, 98, 1999, 2000 Free Software Foundation, Inc.
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Copyright 1996, 97, 98, 1999, 2000 Free Software Foundation, Inc.
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Contributed by Ian Lance Taylor, Cygnus Support.
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Contributed by Ian Lance Taylor, Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "bfd.h"
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#include "bfd.h"
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#include "sysdep.h"
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#include "sysdep.h"
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#include "bfdlink.h"
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#include "bfdlink.h"
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#include "libbfd.h"
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#include "libbfd.h"
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#include "elf-bfd.h"
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#include "elf-bfd.h"
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#include "elf/sh.h"
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#include "elf/sh.h"
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static bfd_reloc_status_type sh_elf_reloc
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static bfd_reloc_status_type sh_elf_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_reloc_status_type sh_elf_ignore_reloc
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static bfd_reloc_status_type sh_elf_ignore_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 reloc_howto_type *sh_elf_reloc_type_lookup
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static reloc_howto_type *sh_elf_reloc_type_lookup
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PARAMS ((bfd *, bfd_reloc_code_real_type));
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PARAMS ((bfd *, bfd_reloc_code_real_type));
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static void sh_elf_info_to_howto
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static void sh_elf_info_to_howto
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PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
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PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
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static boolean sh_elf_set_private_flags
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static boolean sh_elf_set_private_flags
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PARAMS ((bfd *, flagword));
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PARAMS ((bfd *, flagword));
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static boolean sh_elf_copy_private_data
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static boolean sh_elf_copy_private_data
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PARAMS ((bfd *, bfd *));
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PARAMS ((bfd *, bfd *));
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static boolean sh_elf_merge_private_data
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static boolean sh_elf_merge_private_data
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PARAMS ((bfd *, bfd *));
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PARAMS ((bfd *, bfd *));
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boolean sh_elf_set_mach_from_flags
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boolean sh_elf_set_mach_from_flags
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PARAMS ((bfd *));
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PARAMS ((bfd *));
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static boolean sh_elf_relax_section
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static boolean sh_elf_relax_section
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PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
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PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
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static boolean sh_elf_relax_delete_bytes
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static boolean sh_elf_relax_delete_bytes
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PARAMS ((bfd *, asection *, bfd_vma, int));
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PARAMS ((bfd *, asection *, bfd_vma, int));
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static boolean sh_elf_align_loads
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static boolean sh_elf_align_loads
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PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, boolean *));
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PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, boolean *));
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static boolean sh_elf_swap_insns
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static boolean sh_elf_swap_insns
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PARAMS ((bfd *, asection *, PTR, bfd_byte *, bfd_vma));
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PARAMS ((bfd *, asection *, PTR, bfd_byte *, bfd_vma));
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static boolean sh_elf_relocate_section
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static boolean sh_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_byte *sh_elf_get_relocated_section_contents
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static bfd_byte *sh_elf_get_relocated_section_contents
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PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
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PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
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bfd_byte *, boolean, asymbol **));
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bfd_byte *, boolean, asymbol **));
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static reloc_howto_type sh_elf_howto_table[] =
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static reloc_howto_type sh_elf_howto_table[] =
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{
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{
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/* No relocation. */
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/* No relocation. */
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HOWTO (R_SH_NONE, /* type */
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HOWTO (R_SH_NONE, /* 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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0, /* bitsize */
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0, /* bitsize */
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false, /* pc_relative */
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false, /* pc_relative */
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0, /* bitpos */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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complain_overflow_dont, /* complain_on_overflow */
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sh_elf_ignore_reloc, /* special_function */
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sh_elf_ignore_reloc, /* special_function */
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"R_SH_NONE", /* name */
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"R_SH_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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/* 32 bit absolute relocation. Setting partial_inplace to true and
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/* 32 bit absolute relocation. Setting partial_inplace to true and
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src_mask to a non-zero value is similar to the COFF toolchain. */
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src_mask to a non-zero value is similar to the COFF toolchain. */
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HOWTO (R_SH_DIR32, /* type */
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HOWTO (R_SH_DIR32, /* 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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sh_elf_reloc, /* special_function */
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sh_elf_reloc, /* special_function */
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"R_SH_DIR32", /* name */
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"R_SH_DIR32", /* name */
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true, /* partial_inplace */
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true, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* 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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/* 32 bit PC relative relocation. */
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/* 32 bit PC relative relocation. */
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HOWTO (R_SH_REL32, /* type */
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HOWTO (R_SH_REL32, /* 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_signed, /* complain_on_overflow */
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complain_overflow_signed, /* complain_on_overflow */
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sh_elf_ignore_reloc, /* special_function */
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sh_elf_ignore_reloc, /* special_function */
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"R_SH_REL32", /* name */
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"R_SH_REL32", /* 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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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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/* 8 bit PC relative branch divided by 2. */
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/* 8 bit PC relative branch divided by 2. */
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HOWTO (R_SH_DIR8WPN, /* type */
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HOWTO (R_SH_DIR8WPN, /* type */
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1, /* rightshift */
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1, /* 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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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_signed, /* complain_on_overflow */
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complain_overflow_signed, /* complain_on_overflow */
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sh_elf_ignore_reloc, /* special_function */
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sh_elf_ignore_reloc, /* special_function */
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"R_SH_DIR8WPN", /* name */
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"R_SH_DIR8WPN", /* name */
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true, /* partial_inplace */
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true, /* partial_inplace */
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0xff, /* src_mask */
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0xff, /* src_mask */
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0xff, /* dst_mask */
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0xff, /* dst_mask */
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true), /* pcrel_offset */
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true), /* pcrel_offset */
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/* 12 bit PC relative branch divided by 2. */
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/* 12 bit PC relative branch divided by 2. */
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HOWTO (R_SH_IND12W, /* type */
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HOWTO (R_SH_IND12W, /* type */
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1, /* rightshift */
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1, /* 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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12, /* bitsize */
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12, /* 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_signed, /* complain_on_overflow */
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complain_overflow_signed, /* complain_on_overflow */
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sh_elf_reloc, /* special_function */
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sh_elf_reloc, /* special_function */
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"R_SH_IND12W", /* name */
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"R_SH_IND12W", /* name */
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true, /* partial_inplace */
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true, /* partial_inplace */
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0xfff, /* src_mask */
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0xfff, /* src_mask */
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0xfff, /* dst_mask */
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0xfff, /* dst_mask */
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true), /* pcrel_offset */
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true), /* pcrel_offset */
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/* 8 bit unsigned PC relative divided by 4. */
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/* 8 bit unsigned PC relative divided by 4. */
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HOWTO (R_SH_DIR8WPL, /* type */
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HOWTO (R_SH_DIR8WPL, /* type */
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2, /* rightshift */
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2, /* 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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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_unsigned, /* complain_on_overflow */
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complain_overflow_unsigned, /* complain_on_overflow */
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sh_elf_ignore_reloc, /* special_function */
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sh_elf_ignore_reloc, /* special_function */
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"R_SH_DIR8WPL", /* name */
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"R_SH_DIR8WPL", /* name */
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true, /* partial_inplace */
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true, /* partial_inplace */
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0xff, /* src_mask */
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0xff, /* src_mask */
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0xff, /* dst_mask */
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0xff, /* dst_mask */
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true), /* pcrel_offset */
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true), /* pcrel_offset */
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/* 8 bit unsigned PC relative divided by 2. */
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/* 8 bit unsigned PC relative divided by 2. */
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HOWTO (R_SH_DIR8WPZ, /* type */
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HOWTO (R_SH_DIR8WPZ, /* type */
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1, /* rightshift */
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1, /* 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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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_unsigned, /* complain_on_overflow */
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complain_overflow_unsigned, /* complain_on_overflow */
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sh_elf_ignore_reloc, /* special_function */
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sh_elf_ignore_reloc, /* special_function */
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"R_SH_DIR8WPZ", /* name */
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"R_SH_DIR8WPZ", /* name */
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true, /* partial_inplace */
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true, /* partial_inplace */
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0xff, /* src_mask */
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0xff, /* src_mask */
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0xff, /* dst_mask */
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0xff, /* dst_mask */
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true), /* pcrel_offset */
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true), /* pcrel_offset */
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/* 8 bit GBR relative. FIXME: This only makes sense if we have some
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/* 8 bit GBR relative. FIXME: This only makes sense if we have some
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special symbol for the GBR relative area, and that is not
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special symbol for the GBR relative area, and that is not
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implemented. */
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implemented. */
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HOWTO (R_SH_DIR8BP, /* type */
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HOWTO (R_SH_DIR8BP, /* 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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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_unsigned, /* complain_on_overflow */
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complain_overflow_unsigned, /* complain_on_overflow */
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sh_elf_ignore_reloc, /* special_function */
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sh_elf_ignore_reloc, /* special_function */
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"R_SH_DIR8BP", /* name */
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"R_SH_DIR8BP", /* 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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0xff, /* dst_mask */
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0xff, /* dst_mask */
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true), /* pcrel_offset */
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true), /* pcrel_offset */
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/* 8 bit GBR relative divided by 2. FIXME: This only makes sense if
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/* 8 bit GBR relative divided by 2. FIXME: This only makes sense if
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we have some special symbol for the GBR relative area, and that
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we have some special symbol for the GBR relative area, and that
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is not implemented. */
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is not implemented. */
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HOWTO (R_SH_DIR8W, /* type */
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HOWTO (R_SH_DIR8W, /* type */
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1, /* rightshift */
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1, /* 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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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_unsigned, /* complain_on_overflow */
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complain_overflow_unsigned, /* complain_on_overflow */
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sh_elf_ignore_reloc, /* special_function */
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sh_elf_ignore_reloc, /* special_function */
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"R_SH_DIR8W", /* name */
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"R_SH_DIR8W", /* 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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0xff, /* dst_mask */
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0xff, /* dst_mask */
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true), /* pcrel_offset */
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true), /* pcrel_offset */
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/* 8 bit GBR relative divided by 4. FIXME: This only makes sense if
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/* 8 bit GBR relative divided by 4. FIXME: This only makes sense if
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we have some special symbol for the GBR relative area, and that
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we have some special symbol for the GBR relative area, and that
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is not implemented. */
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is not implemented. */
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HOWTO (R_SH_DIR8L, /* type */
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HOWTO (R_SH_DIR8L, /* type */
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2, /* rightshift */
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2, /* 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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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_unsigned, /* complain_on_overflow */
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complain_overflow_unsigned, /* complain_on_overflow */
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sh_elf_ignore_reloc, /* special_function */
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sh_elf_ignore_reloc, /* special_function */
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"R_SH_DIR8L", /* name */
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"R_SH_DIR8L", /* 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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0xff, /* dst_mask */
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0xff, /* dst_mask */
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true), /* pcrel_offset */
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true), /* pcrel_offset */
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EMPTY_HOWTO (10),
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EMPTY_HOWTO (10),
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EMPTY_HOWTO (11),
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EMPTY_HOWTO (11),
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EMPTY_HOWTO (12),
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EMPTY_HOWTO (12),
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EMPTY_HOWTO (13),
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EMPTY_HOWTO (13),
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EMPTY_HOWTO (14),
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EMPTY_HOWTO (14),
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EMPTY_HOWTO (15),
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EMPTY_HOWTO (15),
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EMPTY_HOWTO (16),
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EMPTY_HOWTO (16),
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EMPTY_HOWTO (17),
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EMPTY_HOWTO (17),
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EMPTY_HOWTO (18),
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EMPTY_HOWTO (18),
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EMPTY_HOWTO (19),
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EMPTY_HOWTO (19),
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EMPTY_HOWTO (20),
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EMPTY_HOWTO (20),
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EMPTY_HOWTO (21),
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EMPTY_HOWTO (21),
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EMPTY_HOWTO (22),
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EMPTY_HOWTO (22),
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EMPTY_HOWTO (23),
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EMPTY_HOWTO (23),
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EMPTY_HOWTO (24),
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EMPTY_HOWTO (24),
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/* The remaining relocs are a GNU extension used for relaxing. The
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/* The remaining relocs are a GNU extension used for relaxing. The
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final pass of the linker never needs to do anything with any of
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final pass of the linker never needs to do anything with any of
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these relocs. Any required operations are handled by the
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these relocs. Any required operations are handled by the
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relaxation code. */
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relaxation code. */
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/* A 16 bit switch table entry. This is generated for an expression
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/* A 16 bit switch table entry. This is generated for an expression
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such as ``.word L1 - L2''. The offset holds the difference
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such as ``.word L1 - L2''. The offset holds the difference
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between the reloc address and L2. */
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between the reloc address and L2. */
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HOWTO (R_SH_SWITCH16, /* type */
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HOWTO (R_SH_SWITCH16, /* 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_unsigned, /* complain_on_overflow */
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complain_overflow_unsigned, /* complain_on_overflow */
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sh_elf_ignore_reloc, /* special_function */
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sh_elf_ignore_reloc, /* special_function */
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"R_SH_SWITCH16", /* name */
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"R_SH_SWITCH16", /* 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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true), /* pcrel_offset */
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true), /* pcrel_offset */
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|
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/* A 32 bit switch table entry. This is generated for an expression
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/* A 32 bit switch table entry. This is generated for an expression
|
such as ``.long L1 - L2''. The offset holds the difference
|
such as ``.long L1 - L2''. The offset holds the difference
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between the reloc address and L2. */
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between the reloc address and L2. */
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HOWTO (R_SH_SWITCH32, /* type */
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HOWTO (R_SH_SWITCH32, /* 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 */
|
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_unsigned, /* complain_on_overflow */
|
complain_overflow_unsigned, /* complain_on_overflow */
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sh_elf_ignore_reloc, /* special_function */
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sh_elf_ignore_reloc, /* special_function */
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"R_SH_SWITCH32", /* name */
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"R_SH_SWITCH32", /* name */
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false, /* partial_inplace */
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false, /* partial_inplace */
|
0, /* src_mask */
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0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
true), /* pcrel_offset */
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true), /* pcrel_offset */
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|
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/* Indicates a .uses pseudo-op. The compiler will generate .uses
|
/* Indicates a .uses pseudo-op. The compiler will generate .uses
|
pseudo-ops when it finds a function call which can be relaxed.
|
pseudo-ops when it finds a function call which can be relaxed.
|
The offset field holds the PC relative offset to the instruction
|
The offset field holds the PC relative offset to the instruction
|
which loads the register used in the function call. */
|
which loads the register used in the function call. */
|
HOWTO (R_SH_USES, /* type */
|
HOWTO (R_SH_USES, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* bitsize */
|
0, /* bitsize */
|
false, /* pc_relative */
|
false, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
sh_elf_ignore_reloc, /* special_function */
|
sh_elf_ignore_reloc, /* special_function */
|
"R_SH_USES", /* name */
|
"R_SH_USES", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
/* The assembler will generate this reloc for addresses referred to
|
/* The assembler will generate this reloc for addresses referred to
|
by the register loads associated with USES relocs. The offset
|
by the register loads associated with USES relocs. The offset
|
field holds the number of times the address is referenced in the
|
field holds the number of times the address is referenced in the
|
object file. */
|
object file. */
|
HOWTO (R_SH_COUNT, /* type */
|
HOWTO (R_SH_COUNT, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* bitsize */
|
0, /* bitsize */
|
false, /* pc_relative */
|
false, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
sh_elf_ignore_reloc, /* special_function */
|
sh_elf_ignore_reloc, /* special_function */
|
"R_SH_COUNT", /* name */
|
"R_SH_COUNT", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
/* Indicates an alignment statement. The offset field is the power
|
/* Indicates an alignment statement. The offset field is the power
|
of 2 to which subsequent portions of the object file must be
|
of 2 to which subsequent portions of the object file must be
|
aligned. */
|
aligned. */
|
HOWTO (R_SH_ALIGN, /* type */
|
HOWTO (R_SH_ALIGN, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* bitsize */
|
0, /* bitsize */
|
false, /* pc_relative */
|
false, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
sh_elf_ignore_reloc, /* special_function */
|
sh_elf_ignore_reloc, /* special_function */
|
"R_SH_ALIGN", /* name */
|
"R_SH_ALIGN", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
/* The assembler will generate this reloc before a block of
|
/* The assembler will generate this reloc before a block of
|
instructions. A section should be processed as assumining it
|
instructions. A section should be processed as assumining it
|
contains data, unless this reloc is seen. */
|
contains data, unless this reloc is seen. */
|
HOWTO (R_SH_CODE, /* type */
|
HOWTO (R_SH_CODE, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* bitsize */
|
0, /* bitsize */
|
false, /* pc_relative */
|
false, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
sh_elf_ignore_reloc, /* special_function */
|
sh_elf_ignore_reloc, /* special_function */
|
"R_SH_CODE", /* name */
|
"R_SH_CODE", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
/* The assembler will generate this reloc after a block of
|
/* The assembler will generate this reloc after a block of
|
instructions when it sees data that is not instructions. */
|
instructions when it sees data that is not instructions. */
|
HOWTO (R_SH_DATA, /* type */
|
HOWTO (R_SH_DATA, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* bitsize */
|
0, /* bitsize */
|
false, /* pc_relative */
|
false, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
sh_elf_ignore_reloc, /* special_function */
|
sh_elf_ignore_reloc, /* special_function */
|
"R_SH_DATA", /* name */
|
"R_SH_DATA", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
/* The assembler generates this reloc for each label within a block
|
/* The assembler generates this reloc for each label within a block
|
of instructions. This permits the linker to avoid swapping
|
of instructions. This permits the linker to avoid swapping
|
instructions which are the targets of branches. */
|
instructions which are the targets of branches. */
|
HOWTO (R_SH_LABEL, /* type */
|
HOWTO (R_SH_LABEL, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* bitsize */
|
0, /* bitsize */
|
false, /* pc_relative */
|
false, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
sh_elf_ignore_reloc, /* special_function */
|
sh_elf_ignore_reloc, /* special_function */
|
"R_SH_LABEL", /* name */
|
"R_SH_LABEL", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
/* An 8 bit switch table entry. This is generated for an expression
|
/* An 8 bit switch table entry. This is generated for an expression
|
such as ``.word L1 - L2''. The offset holds the difference
|
such as ``.word L1 - L2''. The offset holds the difference
|
between the reloc address and L2. */
|
between the reloc address and L2. */
|
HOWTO (R_SH_SWITCH8, /* type */
|
HOWTO (R_SH_SWITCH8, /* type */
|
0, /* rightshift */
|
0, /* rightshift */
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
8, /* bitsize */
|
8, /* bitsize */
|
false, /* pc_relative */
|
false, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
complain_overflow_unsigned, /* complain_on_overflow */
|
sh_elf_ignore_reloc, /* special_function */
|
sh_elf_ignore_reloc, /* special_function */
|
"R_SH_SWITCH8", /* name */
|
"R_SH_SWITCH8", /* name */
|
false, /* partial_inplace */
|
false, /* partial_inplace */
|
0, /* src_mask */
|
0, /* src_mask */
|
0, /* dst_mask */
|
0, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
/* GNU extension to record C++ vtable hierarchy */
|
/* GNU extension to record C++ vtable hierarchy */
|
HOWTO (R_SH_GNU_VTINHERIT, /* type */
|
HOWTO (R_SH_GNU_VTINHERIT, /* 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 */
|
NULL, /* special_function */
|
NULL, /* special_function */
|
"R_SH_GNU_VTINHERIT", /* name */
|
"R_SH_GNU_VTINHERIT", /* 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 */
|
|
|
/* GNU extension to record C++ vtable member usage */
|
/* GNU extension to record C++ vtable member usage */
|
HOWTO (R_SH_GNU_VTENTRY, /* type */
|
HOWTO (R_SH_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_SH_GNU_VTENTRY", /* name */
|
"R_SH_GNU_VTENTRY", /* 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 */
|
|
|
/* 8 bit PC relative divided by 2 - but specified in a very odd way. */
|
/* 8 bit PC relative divided by 2 - but specified in a very odd way. */
|
HOWTO (R_SH_LOOP_START, /* type */
|
HOWTO (R_SH_LOOP_START, /* type */
|
1, /* rightshift */
|
1, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
8, /* bitsize */
|
8, /* bitsize */
|
false, /* pc_relative */
|
false, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_signed, /* complain_on_overflow */
|
complain_overflow_signed, /* complain_on_overflow */
|
sh_elf_ignore_reloc, /* special_function */
|
sh_elf_ignore_reloc, /* special_function */
|
"R_SH_LOOP_START", /* name */
|
"R_SH_LOOP_START", /* name */
|
true, /* partial_inplace */
|
true, /* partial_inplace */
|
0xff, /* src_mask */
|
0xff, /* src_mask */
|
0xff, /* dst_mask */
|
0xff, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
/* 8 bit PC relative divided by 2 - but specified in a very odd way. */
|
/* 8 bit PC relative divided by 2 - but specified in a very odd way. */
|
HOWTO (R_SH_LOOP_END, /* type */
|
HOWTO (R_SH_LOOP_END, /* type */
|
1, /* rightshift */
|
1, /* rightshift */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
8, /* bitsize */
|
8, /* bitsize */
|
false, /* pc_relative */
|
false, /* pc_relative */
|
0, /* bitpos */
|
0, /* bitpos */
|
complain_overflow_signed, /* complain_on_overflow */
|
complain_overflow_signed, /* complain_on_overflow */
|
sh_elf_ignore_reloc, /* special_function */
|
sh_elf_ignore_reloc, /* special_function */
|
"R_SH_LOOP_END", /* name */
|
"R_SH_LOOP_END", /* name */
|
true, /* partial_inplace */
|
true, /* partial_inplace */
|
0xff, /* src_mask */
|
0xff, /* src_mask */
|
0xff, /* dst_mask */
|
0xff, /* dst_mask */
|
true), /* pcrel_offset */
|
true), /* pcrel_offset */
|
|
|
};
|
};
|
|
|
static bfd_reloc_status_type
|
static bfd_reloc_status_type
|
sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, addr,
|
sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, addr,
|
symbol_section, start, end)
|
symbol_section, start, end)
|
int r_type;
|
int r_type;
|
bfd *input_bfd;
|
bfd *input_bfd;
|
asection *input_section;
|
asection *input_section;
|
bfd_byte *contents;
|
bfd_byte *contents;
|
bfd_vma addr;
|
bfd_vma addr;
|
asection *symbol_section;
|
asection *symbol_section;
|
bfd_vma start, end;
|
bfd_vma start, end;
|
{
|
{
|
static bfd_vma last_addr;
|
static bfd_vma last_addr;
|
asection *last_symbol_section;
|
asection *last_symbol_section;
|
bfd_byte *free_contents = NULL;
|
bfd_byte *free_contents = NULL;
|
bfd_byte *start_ptr, *ptr, *last_ptr;
|
bfd_byte *start_ptr, *ptr, *last_ptr;
|
int diff, cum_diff;
|
int diff, cum_diff;
|
bfd_signed_vma x;
|
bfd_signed_vma x;
|
int insn;
|
int insn;
|
|
|
/* Sanity check the address. */
|
/* Sanity check the address. */
|
if (addr > input_section->_raw_size)
|
if (addr > input_section->_raw_size)
|
return bfd_reloc_outofrange;
|
return bfd_reloc_outofrange;
|
|
|
/* We require the start and end relocations to be processed consecutively -
|
/* We require the start and end relocations to be processed consecutively -
|
although we allow then to be processed forwards or backwards. */
|
although we allow then to be processed forwards or backwards. */
|
if (! last_addr)
|
if (! last_addr)
|
{
|
{
|
last_addr = addr;
|
last_addr = addr;
|
last_symbol_section = symbol_section;
|
last_symbol_section = symbol_section;
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
}
|
}
|
if (last_addr != addr)
|
if (last_addr != addr)
|
abort ();
|
abort ();
|
last_addr = 0;
|
last_addr = 0;
|
|
|
if (! symbol_section || last_symbol_section != symbol_section || end < start)
|
if (! symbol_section || last_symbol_section != symbol_section || end < start)
|
return bfd_reloc_outofrange;
|
return bfd_reloc_outofrange;
|
|
|
/* Get the symbol_section contents. */
|
/* Get the symbol_section contents. */
|
if (symbol_section != input_section)
|
if (symbol_section != input_section)
|
{
|
{
|
if (elf_section_data (symbol_section)->this_hdr.contents != NULL)
|
if (elf_section_data (symbol_section)->this_hdr.contents != NULL)
|
contents = elf_section_data (symbol_section)->this_hdr.contents;
|
contents = elf_section_data (symbol_section)->this_hdr.contents;
|
else
|
else
|
{
|
{
|
free_contents = contents
|
free_contents = contents
|
= (bfd_byte *) bfd_malloc (symbol_section->_raw_size);
|
= (bfd_byte *) bfd_malloc (symbol_section->_raw_size);
|
if (contents == NULL)
|
if (contents == NULL)
|
return bfd_reloc_outofrange;
|
return bfd_reloc_outofrange;
|
if (! bfd_get_section_contents (input_bfd, symbol_section, contents,
|
if (! bfd_get_section_contents (input_bfd, symbol_section, contents,
|
(file_ptr) 0,
|
(file_ptr) 0,
|
symbol_section->_raw_size))
|
symbol_section->_raw_size))
|
{
|
{
|
free (contents);
|
free (contents);
|
return bfd_reloc_outofrange;
|
return bfd_reloc_outofrange;
|
}
|
}
|
}
|
}
|
}
|
}
|
#define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
|
#define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
|
start_ptr = contents + start;
|
start_ptr = contents + start;
|
for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;)
|
for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;)
|
{
|
{
|
for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);)
|
for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);)
|
ptr -= 2;
|
ptr -= 2;
|
ptr += 2;
|
ptr += 2;
|
diff = last_ptr - ptr >> 1;
|
diff = last_ptr - ptr >> 1;
|
cum_diff += diff & 1;
|
cum_diff += diff & 1;
|
cum_diff += diff;
|
cum_diff += diff;
|
}
|
}
|
/* Calculate the start / end values to load into rs / re minus four -
|
/* Calculate the start / end values to load into rs / re minus four -
|
so that will cancel out the four we would otherwise have to add to
|
so that will cancel out the four we would otherwise have to add to
|
addr to get the value to subtract in order to get relative addressing. */
|
addr to get the value to subtract in order to get relative addressing. */
|
if (cum_diff >= 0)
|
if (cum_diff >= 0)
|
{
|
{
|
start -= 4;
|
start -= 4;
|
end = (ptr + cum_diff * 2) - contents;
|
end = (ptr + cum_diff * 2) - contents;
|
}
|
}
|
else
|
else
|
{
|
{
|
bfd_vma start0 = start - 4;
|
bfd_vma start0 = start - 4;
|
|
|
while (start0 >= 0 && IS_PPI (contents + start0))
|
while (start0 >= 0 && IS_PPI (contents + start0))
|
start0 -= 2;
|
start0 -= 2;
|
start0 = start - 2 - ((start - start0) & 2);
|
start0 = start - 2 - ((start - start0) & 2);
|
start = start0 - cum_diff - 2;
|
start = start0 - cum_diff - 2;
|
end = start0;
|
end = start0;
|
}
|
}
|
|
|
if (free_contents)
|
if (free_contents)
|
free (free_contents);
|
free (free_contents);
|
|
|
insn = bfd_get_16 (input_bfd, contents + addr);
|
insn = bfd_get_16 (input_bfd, contents + addr);
|
|
|
x = (insn & 0x200 ? end : start) - addr;
|
x = (insn & 0x200 ? end : start) - addr;
|
if (input_section != symbol_section)
|
if (input_section != symbol_section)
|
x += ((symbol_section->output_section->vma + symbol_section->output_offset)
|
x += ((symbol_section->output_section->vma + symbol_section->output_offset)
|
- (input_section->output_section->vma
|
- (input_section->output_section->vma
|
+ input_section->output_offset));
|
+ input_section->output_offset));
|
x >>= 1;
|
x >>= 1;
|
if (x < -128 || x > 127)
|
if (x < -128 || x > 127)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
|
|
x = insn & ~0xff | x & 0xff;
|
x = insn & ~0xff | x & 0xff;
|
bfd_put_16 (input_bfd, x, contents + addr);
|
bfd_put_16 (input_bfd, x, contents + addr);
|
|
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
}
|
}
|
|
|
/* This function is used for normal relocs. This used to be like the COFF
|
/* This function is used for normal relocs. This used to be like the COFF
|
function, and is almost certainly incorrect for other ELF targets. */
|
function, and is almost certainly incorrect for other ELF targets. */
|
|
|
static bfd_reloc_status_type
|
static bfd_reloc_status_type
|
sh_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
|
sh_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
|
error_message)
|
error_message)
|
bfd *abfd;
|
bfd *abfd;
|
arelent *reloc_entry;
|
arelent *reloc_entry;
|
asymbol *symbol_in;
|
asymbol *symbol_in;
|
PTR data;
|
PTR data;
|
asection *input_section;
|
asection *input_section;
|
bfd *output_bfd;
|
bfd *output_bfd;
|
char **error_message ATTRIBUTE_UNUSED;
|
char **error_message ATTRIBUTE_UNUSED;
|
{
|
{
|
unsigned long insn;
|
unsigned long insn;
|
bfd_vma sym_value;
|
bfd_vma sym_value;
|
enum elf_sh_reloc_type r_type;
|
enum elf_sh_reloc_type r_type;
|
bfd_vma addr = reloc_entry->address;
|
bfd_vma addr = reloc_entry->address;
|
bfd_byte *hit_data = addr + (bfd_byte *) data;
|
bfd_byte *hit_data = addr + (bfd_byte *) data;
|
|
|
r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
|
r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type;
|
|
|
if (output_bfd != NULL)
|
if (output_bfd != NULL)
|
{
|
{
|
/* Partial linking--do nothing. */
|
/* Partial linking--do nothing. */
|
reloc_entry->address += input_section->output_offset;
|
reloc_entry->address += input_section->output_offset;
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
}
|
}
|
|
|
/* Almost all relocs have to do with relaxing. If any work must be
|
/* Almost all relocs have to do with relaxing. If any work must be
|
done for them, it has been done in sh_relax_section. */
|
done for them, it has been done in sh_relax_section. */
|
if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0)
|
if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0)
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
|
|
if (symbol_in != NULL
|
if (symbol_in != NULL
|
&& bfd_is_und_section (symbol_in->section))
|
&& bfd_is_und_section (symbol_in->section))
|
return bfd_reloc_undefined;
|
return bfd_reloc_undefined;
|
|
|
if (bfd_is_com_section (symbol_in->section))
|
if (bfd_is_com_section (symbol_in->section))
|
sym_value = 0;
|
sym_value = 0;
|
else
|
else
|
sym_value = (symbol_in->value +
|
sym_value = (symbol_in->value +
|
symbol_in->section->output_section->vma +
|
symbol_in->section->output_section->vma +
|
symbol_in->section->output_offset);
|
symbol_in->section->output_offset);
|
|
|
switch (r_type)
|
switch (r_type)
|
{
|
{
|
case R_SH_DIR32:
|
case R_SH_DIR32:
|
insn = bfd_get_32 (abfd, hit_data);
|
insn = bfd_get_32 (abfd, hit_data);
|
insn += sym_value + reloc_entry->addend;
|
insn += sym_value + reloc_entry->addend;
|
bfd_put_32 (abfd, insn, hit_data);
|
bfd_put_32 (abfd, insn, hit_data);
|
break;
|
break;
|
case R_SH_IND12W:
|
case R_SH_IND12W:
|
insn = bfd_get_16 (abfd, hit_data);
|
insn = bfd_get_16 (abfd, hit_data);
|
sym_value += reloc_entry->addend;
|
sym_value += reloc_entry->addend;
|
sym_value -= (input_section->output_section->vma
|
sym_value -= (input_section->output_section->vma
|
+ input_section->output_offset
|
+ input_section->output_offset
|
+ addr
|
+ addr
|
+ 4);
|
+ 4);
|
sym_value += (insn & 0xfff) << 1;
|
sym_value += (insn & 0xfff) << 1;
|
if (insn & 0x800)
|
if (insn & 0x800)
|
sym_value -= 0x1000;
|
sym_value -= 0x1000;
|
insn = (insn & 0xf000) | (sym_value & 0xfff);
|
insn = (insn & 0xf000) | (sym_value & 0xfff);
|
bfd_put_16 (abfd, insn, hit_data);
|
bfd_put_16 (abfd, insn, hit_data);
|
if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000)
|
if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000)
|
return bfd_reloc_overflow;
|
return bfd_reloc_overflow;
|
break;
|
break;
|
default:
|
default:
|
abort ();
|
abort ();
|
break;
|
break;
|
}
|
}
|
|
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
}
|
}
|
|
|
/* This function is used for relocs which are only used for relaxing,
|
/* This function is used for relocs which are only used for relaxing,
|
which the linker should otherwise ignore. */
|
which the linker should otherwise ignore. */
|
|
|
static bfd_reloc_status_type
|
static bfd_reloc_status_type
|
sh_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section,
|
sh_elf_ignore_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 ATTRIBUTE_UNUSED;
|
asymbol *symbol ATTRIBUTE_UNUSED;
|
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;
|
{
|
{
|
if (output_bfd != NULL)
|
if (output_bfd != NULL)
|
reloc_entry->address += input_section->output_offset;
|
reloc_entry->address += input_section->output_offset;
|
return bfd_reloc_ok;
|
return bfd_reloc_ok;
|
}
|
}
|
|
|
/* This structure is used to map BFD reloc codes to SH ELF relocs. */
|
/* This structure is used to map BFD reloc codes to SH ELF relocs. */
|
|
|
struct elf_reloc_map
|
struct elf_reloc_map
|
{
|
{
|
bfd_reloc_code_real_type bfd_reloc_val;
|
bfd_reloc_code_real_type bfd_reloc_val;
|
unsigned char elf_reloc_val;
|
unsigned char elf_reloc_val;
|
};
|
};
|
|
|
/* An array mapping BFD reloc codes to SH ELF relocs. */
|
/* An array mapping BFD reloc codes to SH ELF relocs. */
|
|
|
static const struct elf_reloc_map sh_reloc_map[] =
|
static const struct elf_reloc_map sh_reloc_map[] =
|
{
|
{
|
{ BFD_RELOC_NONE, R_SH_NONE },
|
{ BFD_RELOC_NONE, R_SH_NONE },
|
{ BFD_RELOC_32, R_SH_DIR32 },
|
{ BFD_RELOC_32, R_SH_DIR32 },
|
{ BFD_RELOC_CTOR, R_SH_DIR32 },
|
{ BFD_RELOC_CTOR, R_SH_DIR32 },
|
{ BFD_RELOC_32_PCREL, R_SH_REL32 },
|
{ BFD_RELOC_32_PCREL, R_SH_REL32 },
|
{ BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN },
|
{ BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN },
|
{ BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W },
|
{ BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W },
|
{ BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ },
|
{ BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ },
|
{ BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL },
|
{ BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL },
|
{ BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
|
{ BFD_RELOC_8_PCREL, R_SH_SWITCH8 },
|
{ BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
|
{ BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 },
|
{ BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
|
{ BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 },
|
{ BFD_RELOC_SH_USES, R_SH_USES },
|
{ BFD_RELOC_SH_USES, R_SH_USES },
|
{ BFD_RELOC_SH_COUNT, R_SH_COUNT },
|
{ BFD_RELOC_SH_COUNT, R_SH_COUNT },
|
{ BFD_RELOC_SH_ALIGN, R_SH_ALIGN },
|
{ BFD_RELOC_SH_ALIGN, R_SH_ALIGN },
|
{ BFD_RELOC_SH_CODE, R_SH_CODE },
|
{ BFD_RELOC_SH_CODE, R_SH_CODE },
|
{ BFD_RELOC_SH_DATA, R_SH_DATA },
|
{ BFD_RELOC_SH_DATA, R_SH_DATA },
|
{ BFD_RELOC_SH_LABEL, R_SH_LABEL },
|
{ BFD_RELOC_SH_LABEL, R_SH_LABEL },
|
{ BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
|
{ BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT },
|
{ BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
|
{ BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY },
|
{ BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
|
{ BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START },
|
{ BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
|
{ BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END },
|
};
|
};
|
|
|
/* Given a BFD reloc code, return the howto structure for the
|
/* Given a BFD reloc code, return the howto structure for the
|
corresponding SH ELf reloc. */
|
corresponding SH ELf reloc. */
|
|
|
static reloc_howto_type *
|
static reloc_howto_type *
|
sh_elf_reloc_type_lookup (abfd, code)
|
sh_elf_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 (sh_reloc_map) / sizeof (struct elf_reloc_map); i++)
|
for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++)
|
{
|
{
|
if (sh_reloc_map[i].bfd_reloc_val == code)
|
if (sh_reloc_map[i].bfd_reloc_val == code)
|
return &sh_elf_howto_table[(int) sh_reloc_map[i].elf_reloc_val];
|
return &sh_elf_howto_table[(int) sh_reloc_map[i].elf_reloc_val];
|
}
|
}
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Given an ELF reloc, fill in the howto field of a relent. */
|
/* Given an ELF reloc, fill in the howto field of a relent. */
|
|
|
static void
|
static void
|
sh_elf_info_to_howto (abfd, cache_ptr, dst)
|
sh_elf_info_to_howto (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;
|
unsigned int r;
|
|
|
r = ELF32_R_TYPE (dst->r_info);
|
r = ELF32_R_TYPE (dst->r_info);
|
|
|
BFD_ASSERT (r < (unsigned int) R_SH_max);
|
BFD_ASSERT (r < (unsigned int) R_SH_max);
|
BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
|
BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC);
|
|
|
cache_ptr->howto = &sh_elf_howto_table[r];
|
cache_ptr->howto = &sh_elf_howto_table[r];
|
}
|
}
|
|
|
/* This function handles relaxing for SH ELF. See the corresponding
|
/* This function handles relaxing for SH ELF. See the corresponding
|
function in coff-sh.c for a description of what this does. FIXME:
|
function in coff-sh.c for a description of what this does. FIXME:
|
There is a lot of duplication here between this code and the COFF
|
There is a lot of duplication here between this code and the COFF
|
specific code. The format of relocs and symbols is wound deeply
|
specific code. The format of relocs and symbols is wound deeply
|
into this code, but it would still be better if the duplication
|
into this code, but it would still be better if the duplication
|
could be eliminated somehow. Note in particular that although both
|
could be eliminated somehow. Note in particular that although both
|
functions use symbols like R_SH_CODE, those symbols have different
|
functions use symbols like R_SH_CODE, those symbols have different
|
values; in coff-sh.c they come from include/coff/sh.h, whereas here
|
values; in coff-sh.c they come from include/coff/sh.h, whereas here
|
they come from enum elf_sh_reloc_type in include/elf/sh.h. */
|
they come from enum elf_sh_reloc_type in include/elf/sh.h. */
|
|
|
static boolean
|
static boolean
|
sh_elf_relax_section (abfd, sec, link_info, again)
|
sh_elf_relax_section (abfd, sec, link_info, again)
|
bfd *abfd;
|
bfd *abfd;
|
asection *sec;
|
asection *sec;
|
struct bfd_link_info *link_info;
|
struct bfd_link_info *link_info;
|
boolean *again;
|
boolean *again;
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Rela *internal_relocs;
|
Elf_Internal_Rela *internal_relocs;
|
Elf_Internal_Rela *free_relocs = NULL;
|
Elf_Internal_Rela *free_relocs = NULL;
|
boolean have_code;
|
boolean have_code;
|
Elf_Internal_Rela *irel, *irelend;
|
Elf_Internal_Rela *irel, *irelend;
|
bfd_byte *contents = NULL;
|
bfd_byte *contents = NULL;
|
bfd_byte *free_contents = NULL;
|
bfd_byte *free_contents = NULL;
|
Elf32_External_Sym *extsyms = NULL;
|
Elf32_External_Sym *extsyms = NULL;
|
Elf32_External_Sym *free_extsyms = NULL;
|
Elf32_External_Sym *free_extsyms = NULL;
|
|
|
*again = false;
|
*again = false;
|
|
|
if (link_info->relocateable
|
if (link_info->relocateable
|
|| (sec->flags & SEC_RELOC) == 0
|
|| (sec->flags & SEC_RELOC) == 0
|
|| sec->reloc_count == 0)
|
|| sec->reloc_count == 0)
|
return true;
|
return true;
|
|
|
/* If this is the first time we have been called for this section,
|
/* If this is the first time we have been called for this section,
|
initialize the cooked size. */
|
initialize the cooked size. */
|
if (sec->_cooked_size == 0)
|
if (sec->_cooked_size == 0)
|
sec->_cooked_size = sec->_raw_size;
|
sec->_cooked_size = sec->_raw_size;
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
|
|
internal_relocs = (_bfd_elf32_link_read_relocs
|
internal_relocs = (_bfd_elf32_link_read_relocs
|
(abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
|
(abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
|
link_info->keep_memory));
|
link_info->keep_memory));
|
if (internal_relocs == NULL)
|
if (internal_relocs == NULL)
|
goto error_return;
|
goto error_return;
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free_relocs = internal_relocs;
|
free_relocs = internal_relocs;
|
|
|
have_code = false;
|
have_code = false;
|
|
|
irelend = internal_relocs + sec->reloc_count;
|
irelend = internal_relocs + sec->reloc_count;
|
for (irel = internal_relocs; irel < irelend; irel++)
|
for (irel = internal_relocs; irel < irelend; irel++)
|
{
|
{
|
bfd_vma laddr, paddr, symval;
|
bfd_vma laddr, paddr, symval;
|
unsigned short insn;
|
unsigned short insn;
|
Elf_Internal_Rela *irelfn, *irelscan, *irelcount;
|
Elf_Internal_Rela *irelfn, *irelscan, *irelcount;
|
bfd_signed_vma foff;
|
bfd_signed_vma foff;
|
|
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE)
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE)
|
have_code = true;
|
have_code = true;
|
|
|
if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES)
|
if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES)
|
continue;
|
continue;
|
|
|
/* Get the section contents. */
|
/* Get the section contents. */
|
if (contents == NULL)
|
if (contents == NULL)
|
{
|
{
|
if (elf_section_data (sec)->this_hdr.contents != NULL)
|
if (elf_section_data (sec)->this_hdr.contents != NULL)
|
contents = elf_section_data (sec)->this_hdr.contents;
|
contents = elf_section_data (sec)->this_hdr.contents;
|
else
|
else
|
{
|
{
|
contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
|
contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
|
if (contents == NULL)
|
if (contents == NULL)
|
goto error_return;
|
goto error_return;
|
free_contents = contents;
|
free_contents = contents;
|
|
|
if (! bfd_get_section_contents (abfd, sec, contents,
|
if (! bfd_get_section_contents (abfd, sec, contents,
|
(file_ptr) 0, sec->_raw_size))
|
(file_ptr) 0, sec->_raw_size))
|
goto error_return;
|
goto error_return;
|
}
|
}
|
}
|
}
|
|
|
/* The r_addend field of the R_SH_USES reloc will point us to
|
/* The r_addend field of the R_SH_USES reloc will point us to
|
the register load. The 4 is because the r_addend field is
|
the register load. The 4 is because the r_addend field is
|
computed as though it were a jump offset, which are based
|
computed as though it were a jump offset, which are based
|
from 4 bytes after the jump instruction. */
|
from 4 bytes after the jump instruction. */
|
laddr = irel->r_offset + 4 + irel->r_addend;
|
laddr = irel->r_offset + 4 + irel->r_addend;
|
if (laddr >= sec->_raw_size)
|
if (laddr >= sec->_raw_size)
|
{
|
{
|
(*_bfd_error_handler) (_("%s: 0x%lx: warning: bad R_SH_USES offset"),
|
(*_bfd_error_handler) (_("%s: 0x%lx: warning: bad R_SH_USES offset"),
|
bfd_get_filename (abfd),
|
bfd_get_filename (abfd),
|
(unsigned long) irel->r_offset);
|
(unsigned long) irel->r_offset);
|
continue;
|
continue;
|
}
|
}
|
insn = bfd_get_16 (abfd, contents + laddr);
|
insn = bfd_get_16 (abfd, contents + laddr);
|
|
|
/* If the instruction is not mov.l NN,rN, we don't know what to
|
/* If the instruction is not mov.l NN,rN, we don't know what to
|
do. */
|
do. */
|
if ((insn & 0xf000) != 0xd000)
|
if ((insn & 0xf000) != 0xd000)
|
{
|
{
|
((*_bfd_error_handler)
|
((*_bfd_error_handler)
|
(_("%s: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
|
(_("%s: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
|
bfd_get_filename (abfd), (unsigned long) irel->r_offset, insn));
|
bfd_get_filename (abfd), (unsigned long) irel->r_offset, insn));
|
continue;
|
continue;
|
}
|
}
|
|
|
/* Get the address from which the register is being loaded. The
|
/* Get the address from which the register is being loaded. The
|
displacement in the mov.l instruction is quadrupled. It is a
|
displacement in the mov.l instruction is quadrupled. It is a
|
displacement from four bytes after the movl instruction, but,
|
displacement from four bytes after the movl instruction, but,
|
before adding in the PC address, two least significant bits
|
before adding in the PC address, two least significant bits
|
of the PC are cleared. We assume that the section is aligned
|
of the PC are cleared. We assume that the section is aligned
|
on a four byte boundary. */
|
on a four byte boundary. */
|
paddr = insn & 0xff;
|
paddr = insn & 0xff;
|
paddr *= 4;
|
paddr *= 4;
|
paddr += (laddr + 4) &~ 3;
|
paddr += (laddr + 4) &~ 3;
|
if (paddr >= sec->_raw_size)
|
if (paddr >= sec->_raw_size)
|
{
|
{
|
((*_bfd_error_handler)
|
((*_bfd_error_handler)
|
(_("%s: 0x%lx: warning: bad R_SH_USES load offset"),
|
(_("%s: 0x%lx: warning: bad R_SH_USES load offset"),
|
bfd_get_filename (abfd), (unsigned long) irel->r_offset));
|
bfd_get_filename (abfd), (unsigned long) irel->r_offset));
|
continue;
|
continue;
|
}
|
}
|
|
|
/* Get the reloc for the address from which the register is
|
/* Get the reloc for the address from which the register is
|
being loaded. This reloc will tell us which function is
|
being loaded. This reloc will tell us which function is
|
actually being called. */
|
actually being called. */
|
for (irelfn = internal_relocs; irelfn < irelend; irelfn++)
|
for (irelfn = internal_relocs; irelfn < irelend; irelfn++)
|
if (irelfn->r_offset == paddr
|
if (irelfn->r_offset == paddr
|
&& ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32)
|
&& ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32)
|
break;
|
break;
|
if (irelfn >= irelend)
|
if (irelfn >= irelend)
|
{
|
{
|
((*_bfd_error_handler)
|
((*_bfd_error_handler)
|
(_("%s: 0x%lx: warning: could not find expected reloc"),
|
(_("%s: 0x%lx: warning: could not find expected reloc"),
|
bfd_get_filename (abfd), (unsigned long) paddr));
|
bfd_get_filename (abfd), (unsigned long) paddr));
|
continue;
|
continue;
|
}
|
}
|
|
|
/* Read this BFD's symbols if we haven't done so already. */
|
/* Read this BFD's symbols if we haven't done so already. */
|
if (extsyms == NULL)
|
if (extsyms == NULL)
|
{
|
{
|
if (symtab_hdr->contents != NULL)
|
if (symtab_hdr->contents != NULL)
|
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
|
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
|
else
|
else
|
{
|
{
|
extsyms = ((Elf32_External_Sym *)
|
extsyms = ((Elf32_External_Sym *)
|
bfd_malloc (symtab_hdr->sh_size));
|
bfd_malloc (symtab_hdr->sh_size));
|
if (extsyms == NULL)
|
if (extsyms == NULL)
|
goto error_return;
|
goto error_return;
|
free_extsyms = extsyms;
|
free_extsyms = extsyms;
|
if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
|| (bfd_read (extsyms, 1, symtab_hdr->sh_size, abfd)
|
|| (bfd_read (extsyms, 1, symtab_hdr->sh_size, abfd)
|
!= symtab_hdr->sh_size))
|
!= symtab_hdr->sh_size))
|
goto error_return;
|
goto error_return;
|
}
|
}
|
}
|
}
|
|
|
/* Get the value of the symbol referred to by the reloc. */
|
/* Get the value of the symbol referred to by the reloc. */
|
if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
|
if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
|
{
|
{
|
Elf_Internal_Sym isym;
|
Elf_Internal_Sym isym;
|
|
|
/* A local symbol. */
|
/* A local symbol. */
|
bfd_elf32_swap_symbol_in (abfd,
|
bfd_elf32_swap_symbol_in (abfd,
|
extsyms + ELF32_R_SYM (irelfn->r_info),
|
extsyms + ELF32_R_SYM (irelfn->r_info),
|
&isym);
|
&isym);
|
|
|
if (isym.st_shndx != _bfd_elf_section_from_bfd_section (abfd, sec))
|
if (isym.st_shndx != _bfd_elf_section_from_bfd_section (abfd, sec))
|
{
|
{
|
((*_bfd_error_handler)
|
((*_bfd_error_handler)
|
(_("%s: 0x%lx: warning: symbol in unexpected section"),
|
(_("%s: 0x%lx: warning: symbol in unexpected section"),
|
bfd_get_filename (abfd), (unsigned long) paddr));
|
bfd_get_filename (abfd), (unsigned long) paddr));
|
continue;
|
continue;
|
}
|
}
|
|
|
symval = (isym.st_value
|
symval = (isym.st_value
|
+ sec->output_section->vma
|
+ sec->output_section->vma
|
+ sec->output_offset);
|
+ sec->output_offset);
|
}
|
}
|
else
|
else
|
{
|
{
|
unsigned long indx;
|
unsigned long indx;
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
|
|
indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info;
|
indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info;
|
h = elf_sym_hashes (abfd)[indx];
|
h = elf_sym_hashes (abfd)[indx];
|
BFD_ASSERT (h != NULL);
|
BFD_ASSERT (h != NULL);
|
if (h->root.type != bfd_link_hash_defined
|
if (h->root.type != bfd_link_hash_defined
|
&& h->root.type != bfd_link_hash_defweak)
|
&& h->root.type != bfd_link_hash_defweak)
|
{
|
{
|
/* This appears to be a reference to an undefined
|
/* This appears to be a reference to an undefined
|
symbol. Just ignore it--it will be caught by the
|
symbol. Just ignore it--it will be caught by the
|
regular reloc processing. */
|
regular reloc processing. */
|
continue;
|
continue;
|
}
|
}
|
|
|
symval = (h->root.u.def.value
|
symval = (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);
|
}
|
}
|
|
|
symval += bfd_get_32 (abfd, contents + paddr);
|
symval += bfd_get_32 (abfd, contents + paddr);
|
|
|
/* See if this function call can be shortened. */
|
/* See if this function call can be shortened. */
|
foff = (symval
|
foff = (symval
|
- (irel->r_offset
|
- (irel->r_offset
|
+ sec->output_section->vma
|
+ sec->output_section->vma
|
+ sec->output_offset
|
+ sec->output_offset
|
+ 4));
|
+ 4));
|
if (foff < -0x1000 || foff >= 0x1000)
|
if (foff < -0x1000 || foff >= 0x1000)
|
{
|
{
|
/* After all that work, we can't shorten this function call. */
|
/* After all that work, we can't shorten this function call. */
|
continue;
|
continue;
|
}
|
}
|
|
|
/* Shorten the function call. */
|
/* Shorten the function call. */
|
|
|
/* For simplicity of coding, we are going to modify the section
|
/* For simplicity of coding, we are going to modify the section
|
contents, the section relocs, and the BFD symbol table. We
|
contents, the section relocs, and the BFD symbol table. We
|
must tell the rest of the code not to free up this
|
must tell the rest of the code not to free up this
|
information. It would be possible to instead create a table
|
information. It would be possible to instead create a table
|
of changes which have to be made, as is done in coff-mips.c;
|
of changes which have to be made, as is done in coff-mips.c;
|
that would be more work, but would require less memory when
|
that would be more work, but would require less memory when
|
the linker is run. */
|
the linker is run. */
|
|
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
|
|
/* Replace the jsr with a bsr. */
|
/* Replace the jsr with a bsr. */
|
|
|
/* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
|
/* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
|
replace the jsr with a bsr. */
|
replace the jsr with a bsr. */
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W);
|
if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
|
if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
|
{
|
{
|
/* If this needs to be changed because of future relaxing,
|
/* If this needs to be changed because of future relaxing,
|
it will be handled here like other internal IND12W
|
it will be handled here like other internal IND12W
|
relocs. */
|
relocs. */
|
bfd_put_16 (abfd,
|
bfd_put_16 (abfd,
|
0xb000 | ((foff >> 1) & 0xfff),
|
0xb000 | ((foff >> 1) & 0xfff),
|
contents + irel->r_offset);
|
contents + irel->r_offset);
|
}
|
}
|
else
|
else
|
{
|
{
|
/* We can't fully resolve this yet, because the external
|
/* We can't fully resolve this yet, because the external
|
symbol value may be changed by future relaxing. We let
|
symbol value may be changed by future relaxing. We let
|
the final link phase handle it. */
|
the final link phase handle it. */
|
bfd_put_16 (abfd, 0xb000, contents + irel->r_offset);
|
bfd_put_16 (abfd, 0xb000, contents + irel->r_offset);
|
}
|
}
|
|
|
/* See if there is another R_SH_USES reloc referring to the same
|
/* See if there is another R_SH_USES reloc referring to the same
|
register load. */
|
register load. */
|
for (irelscan = internal_relocs; irelscan < irelend; irelscan++)
|
for (irelscan = internal_relocs; irelscan < irelend; irelscan++)
|
if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES
|
if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES
|
&& laddr == irelscan->r_offset + 4 + irelscan->r_addend)
|
&& laddr == irelscan->r_offset + 4 + irelscan->r_addend)
|
break;
|
break;
|
if (irelscan < irelend)
|
if (irelscan < irelend)
|
{
|
{
|
/* Some other function call depends upon this register load,
|
/* Some other function call depends upon this register load,
|
and we have not yet converted that function call.
|
and we have not yet converted that function call.
|
Indeed, we may never be able to convert it. There is
|
Indeed, we may never be able to convert it. There is
|
nothing else we can do at this point. */
|
nothing else we can do at this point. */
|
continue;
|
continue;
|
}
|
}
|
|
|
/* Look for a R_SH_COUNT reloc on the location where the
|
/* Look for a R_SH_COUNT reloc on the location where the
|
function address is stored. Do this before deleting any
|
function address is stored. Do this before deleting any
|
bytes, to avoid confusion about the address. */
|
bytes, to avoid confusion about the address. */
|
for (irelcount = internal_relocs; irelcount < irelend; irelcount++)
|
for (irelcount = internal_relocs; irelcount < irelend; irelcount++)
|
if (irelcount->r_offset == paddr
|
if (irelcount->r_offset == paddr
|
&& ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT)
|
&& ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT)
|
break;
|
break;
|
|
|
/* Delete the register load. */
|
/* Delete the register load. */
|
if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2))
|
if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2))
|
goto error_return;
|
goto error_return;
|
|
|
/* That will change things, so, just in case it permits some
|
/* That will change things, so, just in case it permits some
|
other function call to come within range, we should relax
|
other function call to come within range, we should relax
|
again. Note that this is not required, and it may be slow. */
|
again. Note that this is not required, and it may be slow. */
|
*again = true;
|
*again = true;
|
|
|
/* Now check whether we got a COUNT reloc. */
|
/* Now check whether we got a COUNT reloc. */
|
if (irelcount >= irelend)
|
if (irelcount >= irelend)
|
{
|
{
|
((*_bfd_error_handler)
|
((*_bfd_error_handler)
|
(_("%s: 0x%lx: warning: could not find expected COUNT reloc"),
|
(_("%s: 0x%lx: warning: could not find expected COUNT reloc"),
|
bfd_get_filename (abfd), (unsigned long) paddr));
|
bfd_get_filename (abfd), (unsigned long) paddr));
|
continue;
|
continue;
|
}
|
}
|
|
|
/* The number of uses is stored in the r_addend field. We've
|
/* The number of uses is stored in the r_addend field. We've
|
just deleted one. */
|
just deleted one. */
|
if (irelcount->r_addend == 0)
|
if (irelcount->r_addend == 0)
|
{
|
{
|
((*_bfd_error_handler) (_("%s: 0x%lx: warning: bad count"),
|
((*_bfd_error_handler) (_("%s: 0x%lx: warning: bad count"),
|
bfd_get_filename (abfd),
|
bfd_get_filename (abfd),
|
(unsigned long) paddr));
|
(unsigned long) paddr));
|
continue;
|
continue;
|
}
|
}
|
|
|
--irelcount->r_addend;
|
--irelcount->r_addend;
|
|
|
/* If there are no more uses, we can delete the address. Reload
|
/* If there are no more uses, we can delete the address. Reload
|
the address from irelfn, in case it was changed by the
|
the address from irelfn, in case it was changed by the
|
previous call to sh_elf_relax_delete_bytes. */
|
previous call to sh_elf_relax_delete_bytes. */
|
if (irelcount->r_addend == 0)
|
if (irelcount->r_addend == 0)
|
{
|
{
|
if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4))
|
if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4))
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
/* We've done all we can with that function call. */
|
/* We've done all we can with that function call. */
|
}
|
}
|
|
|
/* Look for load and store instructions that we can align on four
|
/* Look for load and store instructions that we can align on four
|
byte boundaries. */
|
byte boundaries. */
|
if (have_code)
|
if (have_code)
|
{
|
{
|
boolean swapped;
|
boolean swapped;
|
|
|
/* Get the section contents. */
|
/* Get the section contents. */
|
if (contents == NULL)
|
if (contents == NULL)
|
{
|
{
|
if (elf_section_data (sec)->this_hdr.contents != NULL)
|
if (elf_section_data (sec)->this_hdr.contents != NULL)
|
contents = elf_section_data (sec)->this_hdr.contents;
|
contents = elf_section_data (sec)->this_hdr.contents;
|
else
|
else
|
{
|
{
|
contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
|
contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
|
if (contents == NULL)
|
if (contents == NULL)
|
goto error_return;
|
goto error_return;
|
free_contents = contents;
|
free_contents = contents;
|
|
|
if (! bfd_get_section_contents (abfd, sec, contents,
|
if (! bfd_get_section_contents (abfd, sec, contents,
|
(file_ptr) 0, sec->_raw_size))
|
(file_ptr) 0, sec->_raw_size))
|
goto error_return;
|
goto error_return;
|
}
|
}
|
}
|
}
|
|
|
if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents,
|
if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents,
|
&swapped))
|
&swapped))
|
goto error_return;
|
goto error_return;
|
|
|
if (swapped)
|
if (swapped)
|
{
|
{
|
elf_section_data (sec)->relocs = internal_relocs;
|
elf_section_data (sec)->relocs = internal_relocs;
|
free_relocs = NULL;
|
free_relocs = NULL;
|
|
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
free_contents = NULL;
|
free_contents = NULL;
|
|
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
symtab_hdr->contents = (bfd_byte *) extsyms;
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
}
|
}
|
}
|
}
|
|
|
if (free_relocs != NULL)
|
if (free_relocs != NULL)
|
{
|
{
|
free (free_relocs);
|
free (free_relocs);
|
free_relocs = NULL;
|
free_relocs = NULL;
|
}
|
}
|
|
|
if (free_contents != NULL)
|
if (free_contents != NULL)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (free_contents);
|
free (free_contents);
|
else
|
else
|
{
|
{
|
/* Cache the section contents for elf_link_input_bfd. */
|
/* Cache the section contents for elf_link_input_bfd. */
|
elf_section_data (sec)->this_hdr.contents = contents;
|
elf_section_data (sec)->this_hdr.contents = contents;
|
}
|
}
|
free_contents = NULL;
|
free_contents = NULL;
|
}
|
}
|
|
|
if (free_extsyms != NULL)
|
if (free_extsyms != NULL)
|
{
|
{
|
if (! link_info->keep_memory)
|
if (! link_info->keep_memory)
|
free (free_extsyms);
|
free (free_extsyms);
|
else
|
else
|
{
|
{
|
/* Cache the symbols for elf_link_input_bfd. */
|
/* Cache the symbols for elf_link_input_bfd. */
|
symtab_hdr->contents = extsyms;
|
symtab_hdr->contents = extsyms;
|
}
|
}
|
free_extsyms = NULL;
|
free_extsyms = NULL;
|
}
|
}
|
|
|
return true;
|
return true;
|
|
|
error_return:
|
error_return:
|
if (free_relocs != NULL)
|
if (free_relocs != NULL)
|
free (free_relocs);
|
free (free_relocs);
|
if (free_contents != NULL)
|
if (free_contents != NULL)
|
free (free_contents);
|
free (free_contents);
|
if (free_extsyms != NULL)
|
if (free_extsyms != NULL)
|
free (free_extsyms);
|
free (free_extsyms);
|
return false;
|
return false;
|
}
|
}
|
|
|
/* Delete some bytes from a section while relaxing. FIXME: There is a
|
/* Delete some bytes from a section while relaxing. FIXME: There is a
|
lot of duplication between this function and sh_relax_delete_bytes
|
lot of duplication between this function and sh_relax_delete_bytes
|
in coff-sh.c. */
|
in coff-sh.c. */
|
|
|
static boolean
|
static boolean
|
sh_elf_relax_delete_bytes (abfd, sec, addr, count)
|
sh_elf_relax_delete_bytes (abfd, sec, addr, count)
|
bfd *abfd;
|
bfd *abfd;
|
asection *sec;
|
asection *sec;
|
bfd_vma addr;
|
bfd_vma addr;
|
int count;
|
int count;
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf32_External_Sym *extsyms;
|
Elf32_External_Sym *extsyms;
|
int shndx, index;
|
int shndx, index;
|
bfd_byte *contents;
|
bfd_byte *contents;
|
Elf_Internal_Rela *irel, *irelend;
|
Elf_Internal_Rela *irel, *irelend;
|
Elf_Internal_Rela *irelalign;
|
Elf_Internal_Rela *irelalign;
|
bfd_vma toaddr;
|
bfd_vma toaddr;
|
Elf32_External_Sym *esym, *esymend;
|
Elf32_External_Sym *esym, *esymend;
|
struct elf_link_hash_entry *sym_hash;
|
struct elf_link_hash_entry *sym_hash;
|
asection *o;
|
asection *o;
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
|
extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
|
|
|
shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
|
shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
|
|
|
contents = elf_section_data (sec)->this_hdr.contents;
|
contents = elf_section_data (sec)->this_hdr.contents;
|
|
|
/* The deletion must stop at the next ALIGN reloc for an aligment
|
/* The deletion must stop at the next ALIGN reloc for an aligment
|
power larger than the number of bytes we are deleting. */
|
power larger than the number of bytes we are deleting. */
|
|
|
irelalign = NULL;
|
irelalign = NULL;
|
toaddr = sec->_cooked_size;
|
toaddr = sec->_cooked_size;
|
|
|
irel = elf_section_data (sec)->relocs;
|
irel = elf_section_data (sec)->relocs;
|
irelend = irel + sec->reloc_count;
|
irelend = irel + sec->reloc_count;
|
for (; irel < irelend; irel++)
|
for (; irel < irelend; irel++)
|
{
|
{
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
|
&& irel->r_offset > addr
|
&& irel->r_offset > addr
|
&& count < (1 << irel->r_addend))
|
&& count < (1 << irel->r_addend))
|
{
|
{
|
irelalign = irel;
|
irelalign = irel;
|
toaddr = irel->r_offset;
|
toaddr = irel->r_offset;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Actually delete the bytes. */
|
/* Actually delete the bytes. */
|
memmove (contents + addr, contents + addr + count, toaddr - addr - count);
|
memmove (contents + addr, contents + addr + count, toaddr - addr - count);
|
if (irelalign == NULL)
|
if (irelalign == NULL)
|
sec->_cooked_size -= count;
|
sec->_cooked_size -= count;
|
else
|
else
|
{
|
{
|
int i;
|
int i;
|
|
|
#define NOP_OPCODE (0x0009)
|
#define NOP_OPCODE (0x0009)
|
|
|
BFD_ASSERT ((count & 1) == 0);
|
BFD_ASSERT ((count & 1) == 0);
|
for (i = 0; i < count; i += 2)
|
for (i = 0; i < count; i += 2)
|
bfd_put_16 (abfd, NOP_OPCODE, contents + toaddr - count + i);
|
bfd_put_16 (abfd, NOP_OPCODE, contents + toaddr - count + i);
|
}
|
}
|
|
|
/* Adjust all the relocs. */
|
/* Adjust all the relocs. */
|
for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
|
for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++)
|
{
|
{
|
bfd_vma nraddr, stop;
|
bfd_vma nraddr, stop;
|
bfd_vma start = 0;
|
bfd_vma start = 0;
|
int insn = 0;
|
int insn = 0;
|
Elf_Internal_Sym sym;
|
Elf_Internal_Sym sym;
|
int off, adjust, oinsn;
|
int off, adjust, oinsn;
|
bfd_signed_vma voff = 0;
|
bfd_signed_vma voff = 0;
|
boolean overflow;
|
boolean overflow;
|
|
|
/* Get the new reloc address. */
|
/* Get the new reloc address. */
|
nraddr = irel->r_offset;
|
nraddr = irel->r_offset;
|
if ((irel->r_offset > addr
|
if ((irel->r_offset > addr
|
&& irel->r_offset < toaddr)
|
&& irel->r_offset < toaddr)
|
|| (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
|
|| (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN
|
&& irel->r_offset == toaddr))
|
&& irel->r_offset == toaddr))
|
nraddr -= count;
|
nraddr -= count;
|
|
|
/* See if this reloc was for the bytes we have deleted, in which
|
/* See if this reloc was for the bytes we have deleted, in which
|
case we no longer care about it. Don't delete relocs which
|
case we no longer care about it. Don't delete relocs which
|
represent addresses, though. */
|
represent addresses, though. */
|
if (irel->r_offset >= addr
|
if (irel->r_offset >= addr
|
&& irel->r_offset < addr + count
|
&& irel->r_offset < addr + count
|
&& ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN
|
&& ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN
|
&& ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE
|
&& ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE
|
&& ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA
|
&& ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA
|
&& ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL)
|
&& ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL)
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
|
(int) R_SH_NONE);
|
(int) R_SH_NONE);
|
|
|
/* If this is a PC relative reloc, see if the range it covers
|
/* If this is a PC relative reloc, see if the range it covers
|
includes the bytes we have deleted. */
|
includes the bytes we have deleted. */
|
switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
|
switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
|
{
|
{
|
default:
|
default:
|
break;
|
break;
|
|
|
case R_SH_DIR8WPN:
|
case R_SH_DIR8WPN:
|
case R_SH_IND12W:
|
case R_SH_IND12W:
|
case R_SH_DIR8WPZ:
|
case R_SH_DIR8WPZ:
|
case R_SH_DIR8WPL:
|
case R_SH_DIR8WPL:
|
start = irel->r_offset;
|
start = irel->r_offset;
|
insn = bfd_get_16 (abfd, contents + nraddr);
|
insn = bfd_get_16 (abfd, contents + nraddr);
|
break;
|
break;
|
}
|
}
|
|
|
switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
|
switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
|
{
|
{
|
default:
|
default:
|
start = stop = addr;
|
start = stop = addr;
|
break;
|
break;
|
|
|
case R_SH_DIR32:
|
case R_SH_DIR32:
|
/* If this reloc is against a symbol defined in this
|
/* If this reloc is against a symbol defined in this
|
section, and the symbol will not be adjusted below, we
|
section, and the symbol will not be adjusted below, we
|
must check the addend to see it will put the value in
|
must check the addend to see it will put the value in
|
range to be adjusted, and hence must be changed. */
|
range to be adjusted, and hence must be changed. */
|
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
|
if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
|
{
|
{
|
bfd_elf32_swap_symbol_in (abfd,
|
bfd_elf32_swap_symbol_in (abfd,
|
extsyms + ELF32_R_SYM (irel->r_info),
|
extsyms + ELF32_R_SYM (irel->r_info),
|
&sym);
|
&sym);
|
if (sym.st_shndx == shndx
|
if (sym.st_shndx == shndx
|
&& (sym.st_value <= addr
|
&& (sym.st_value <= addr
|
|| sym.st_value >= toaddr))
|
|| sym.st_value >= toaddr))
|
{
|
{
|
bfd_vma val;
|
bfd_vma val;
|
|
|
val = bfd_get_32 (abfd, contents + nraddr);
|
val = bfd_get_32 (abfd, contents + nraddr);
|
val += sym.st_value;
|
val += sym.st_value;
|
if (val > addr && val < toaddr)
|
if (val > addr && val < toaddr)
|
bfd_put_32 (abfd, val - count, contents + nraddr);
|
bfd_put_32 (abfd, val - count, contents + nraddr);
|
}
|
}
|
}
|
}
|
start = stop = addr;
|
start = stop = addr;
|
break;
|
break;
|
|
|
case R_SH_DIR8WPN:
|
case R_SH_DIR8WPN:
|
off = insn & 0xff;
|
off = insn & 0xff;
|
if (off & 0x80)
|
if (off & 0x80)
|
off -= 0x100;
|
off -= 0x100;
|
stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
|
stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
|
break;
|
break;
|
|
|
case R_SH_IND12W:
|
case R_SH_IND12W:
|
if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info)
|
if (ELF32_R_SYM (irel->r_info) >= symtab_hdr->sh_info)
|
start = stop = addr;
|
start = stop = addr;
|
else
|
else
|
{
|
{
|
off = insn & 0xfff;
|
off = insn & 0xfff;
|
if (off & 0x800)
|
if (off & 0x800)
|
off -= 0x1000;
|
off -= 0x1000;
|
stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
|
stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2);
|
}
|
}
|
break;
|
break;
|
|
|
case R_SH_DIR8WPZ:
|
case R_SH_DIR8WPZ:
|
off = insn & 0xff;
|
off = insn & 0xff;
|
stop = start + 4 + off * 2;
|
stop = start + 4 + off * 2;
|
break;
|
break;
|
|
|
case R_SH_DIR8WPL:
|
case R_SH_DIR8WPL:
|
off = insn & 0xff;
|
off = insn & 0xff;
|
stop = (start &~ (bfd_vma) 3) + 4 + off * 4;
|
stop = (start &~ (bfd_vma) 3) + 4 + off * 4;
|
break;
|
break;
|
|
|
case R_SH_SWITCH8:
|
case R_SH_SWITCH8:
|
case R_SH_SWITCH16:
|
case R_SH_SWITCH16:
|
case R_SH_SWITCH32:
|
case R_SH_SWITCH32:
|
/* These relocs types represent
|
/* These relocs types represent
|
.word L2-L1
|
.word L2-L1
|
The r_addend field holds the difference between the reloc
|
The r_addend field holds the difference between the reloc
|
address and L1. That is the start of the reloc, and
|
address and L1. That is the start of the reloc, and
|
adding in the contents gives us the top. We must adjust
|
adding in the contents gives us the top. We must adjust
|
both the r_offset field and the section contents.
|
both the r_offset field and the section contents.
|
N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
|
N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
|
and the elf bfd r_offset is called r_vaddr. */
|
and the elf bfd r_offset is called r_vaddr. */
|
|
|
stop = irel->r_offset;
|
stop = irel->r_offset;
|
start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
|
start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend);
|
|
|
if (start > addr
|
if (start > addr
|
&& start < toaddr
|
&& start < toaddr
|
&& (stop <= addr || stop >= toaddr))
|
&& (stop <= addr || stop >= toaddr))
|
irel->r_addend += count;
|
irel->r_addend += count;
|
else if (stop > addr
|
else if (stop > addr
|
&& stop < toaddr
|
&& stop < toaddr
|
&& (start <= addr || start >= toaddr))
|
&& (start <= addr || start >= toaddr))
|
irel->r_addend -= count;
|
irel->r_addend -= count;
|
|
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16)
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16)
|
voff = bfd_get_signed_16 (abfd, contents + nraddr);
|
voff = bfd_get_signed_16 (abfd, contents + nraddr);
|
else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8)
|
else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8)
|
voff = bfd_get_8 (abfd, contents + nraddr);
|
voff = bfd_get_8 (abfd, contents + nraddr);
|
else
|
else
|
voff = bfd_get_signed_32 (abfd, contents + nraddr);
|
voff = bfd_get_signed_32 (abfd, contents + nraddr);
|
stop = (bfd_vma) ((bfd_signed_vma) start + voff);
|
stop = (bfd_vma) ((bfd_signed_vma) start + voff);
|
|
|
break;
|
break;
|
|
|
case R_SH_USES:
|
case R_SH_USES:
|
start = irel->r_offset;
|
start = irel->r_offset;
|
stop = (bfd_vma) ((bfd_signed_vma) start
|
stop = (bfd_vma) ((bfd_signed_vma) start
|
+ (long) irel->r_addend
|
+ (long) irel->r_addend
|
+ 4);
|
+ 4);
|
break;
|
break;
|
}
|
}
|
|
|
if (start > addr
|
if (start > addr
|
&& start < toaddr
|
&& start < toaddr
|
&& (stop <= addr || stop >= toaddr))
|
&& (stop <= addr || stop >= toaddr))
|
adjust = count;
|
adjust = count;
|
else if (stop > addr
|
else if (stop > addr
|
&& stop < toaddr
|
&& stop < toaddr
|
&& (start <= addr || start >= toaddr))
|
&& (start <= addr || start >= toaddr))
|
adjust = - count;
|
adjust = - count;
|
else
|
else
|
adjust = 0;
|
adjust = 0;
|
|
|
if (adjust != 0)
|
if (adjust != 0)
|
{
|
{
|
oinsn = insn;
|
oinsn = insn;
|
overflow = false;
|
overflow = false;
|
switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
|
switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info))
|
{
|
{
|
default:
|
default:
|
abort ();
|
abort ();
|
break;
|
break;
|
|
|
case R_SH_DIR8WPN:
|
case R_SH_DIR8WPN:
|
case R_SH_DIR8WPZ:
|
case R_SH_DIR8WPZ:
|
insn += adjust / 2;
|
insn += adjust / 2;
|
if ((oinsn & 0xff00) != (insn & 0xff00))
|
if ((oinsn & 0xff00) != (insn & 0xff00))
|
overflow = true;
|
overflow = true;
|
bfd_put_16 (abfd, insn, contents + nraddr);
|
bfd_put_16 (abfd, insn, contents + nraddr);
|
break;
|
break;
|
|
|
case R_SH_IND12W:
|
case R_SH_IND12W:
|
insn += adjust / 2;
|
insn += adjust / 2;
|
if ((oinsn & 0xf000) != (insn & 0xf000))
|
if ((oinsn & 0xf000) != (insn & 0xf000))
|
overflow = true;
|
overflow = true;
|
bfd_put_16 (abfd, insn, contents + nraddr);
|
bfd_put_16 (abfd, insn, contents + nraddr);
|
break;
|
break;
|
|
|
case R_SH_DIR8WPL:
|
case R_SH_DIR8WPL:
|
BFD_ASSERT (adjust == count || count >= 4);
|
BFD_ASSERT (adjust == count || count >= 4);
|
if (count >= 4)
|
if (count >= 4)
|
insn += adjust / 4;
|
insn += adjust / 4;
|
else
|
else
|
{
|
{
|
if ((irel->r_offset & 3) == 0)
|
if ((irel->r_offset & 3) == 0)
|
++insn;
|
++insn;
|
}
|
}
|
if ((oinsn & 0xff00) != (insn & 0xff00))
|
if ((oinsn & 0xff00) != (insn & 0xff00))
|
overflow = true;
|
overflow = true;
|
bfd_put_16 (abfd, insn, contents + nraddr);
|
bfd_put_16 (abfd, insn, contents + nraddr);
|
break;
|
break;
|
|
|
case R_SH_SWITCH16:
|
case R_SH_SWITCH16:
|
voff += adjust;
|
voff += adjust;
|
if (voff < - 0x8000 || voff >= 0x8000)
|
if (voff < - 0x8000 || voff >= 0x8000)
|
overflow = true;
|
overflow = true;
|
bfd_put_signed_16 (abfd, voff, contents + nraddr);
|
bfd_put_signed_16 (abfd, voff, contents + nraddr);
|
break;
|
break;
|
|
|
case R_SH_SWITCH32:
|
case R_SH_SWITCH32:
|
voff += adjust;
|
voff += adjust;
|
bfd_put_signed_32 (abfd, voff, contents + nraddr);
|
bfd_put_signed_32 (abfd, voff, contents + nraddr);
|
break;
|
break;
|
|
|
case R_SH_USES:
|
case R_SH_USES:
|
irel->r_addend += adjust;
|
irel->r_addend += adjust;
|
break;
|
break;
|
}
|
}
|
|
|
if (overflow)
|
if (overflow)
|
{
|
{
|
((*_bfd_error_handler)
|
((*_bfd_error_handler)
|
(_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
|
(_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
|
bfd_get_filename (abfd), (unsigned long) irel->r_offset));
|
bfd_get_filename (abfd), (unsigned long) irel->r_offset));
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return false;
|
return false;
|
}
|
}
|
}
|
}
|
|
|
irel->r_offset = nraddr;
|
irel->r_offset = nraddr;
|
}
|
}
|
|
|
/* Look through all the other sections. If there contain any IMM32
|
/* Look through all the other sections. If there contain any IMM32
|
relocs against internal symbols which we are not going to adjust
|
relocs against internal symbols which we are not going to adjust
|
below, we may need to adjust the addends. */
|
below, we may need to adjust the addends. */
|
for (o = abfd->sections; o != NULL; o = o->next)
|
for (o = abfd->sections; o != NULL; o = o->next)
|
{
|
{
|
Elf_Internal_Rela *internal_relocs;
|
Elf_Internal_Rela *internal_relocs;
|
Elf_Internal_Rela *irelscan, *irelscanend;
|
Elf_Internal_Rela *irelscan, *irelscanend;
|
bfd_byte *ocontents;
|
bfd_byte *ocontents;
|
|
|
if (o == sec
|
if (o == sec
|
|| (o->flags & SEC_RELOC) == 0
|
|| (o->flags & SEC_RELOC) == 0
|
|| o->reloc_count == 0)
|
|| o->reloc_count == 0)
|
continue;
|
continue;
|
|
|
/* We always cache the relocs. Perhaps, if info->keep_memory is
|
/* We always cache the relocs. Perhaps, if info->keep_memory is
|
false, we should free them, if we are permitted to, when we
|
false, we should free them, if we are permitted to, when we
|
leave sh_coff_relax_section. */
|
leave sh_coff_relax_section. */
|
internal_relocs = (_bfd_elf32_link_read_relocs
|
internal_relocs = (_bfd_elf32_link_read_relocs
|
(abfd, o, (PTR) NULL, (Elf_Internal_Rela *) NULL,
|
(abfd, o, (PTR) NULL, (Elf_Internal_Rela *) NULL,
|
true));
|
true));
|
if (internal_relocs == NULL)
|
if (internal_relocs == NULL)
|
return false;
|
return false;
|
|
|
ocontents = NULL;
|
ocontents = NULL;
|
irelscanend = internal_relocs + o->reloc_count;
|
irelscanend = internal_relocs + o->reloc_count;
|
for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
|
for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++)
|
{
|
{
|
Elf_Internal_Sym sym;
|
Elf_Internal_Sym sym;
|
|
|
/* Dwarf line numbers use R_SH_SWITCH32 relocs. */
|
/* Dwarf line numbers use R_SH_SWITCH32 relocs. */
|
if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
|
if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32)
|
{
|
{
|
bfd_vma start, stop;
|
bfd_vma start, stop;
|
bfd_signed_vma voff;
|
bfd_signed_vma voff;
|
|
|
if (ocontents == NULL)
|
if (ocontents == NULL)
|
{
|
{
|
if (elf_section_data (o)->this_hdr.contents != NULL)
|
if (elf_section_data (o)->this_hdr.contents != NULL)
|
ocontents = elf_section_data (o)->this_hdr.contents;
|
ocontents = elf_section_data (o)->this_hdr.contents;
|
else
|
else
|
{
|
{
|
/* We always cache the section contents.
|
/* We always cache the section contents.
|
Perhaps, if info->keep_memory is false, we
|
Perhaps, if info->keep_memory is false, we
|
should free them, if we are permitted to,
|
should free them, if we are permitted to,
|
when we leave sh_coff_relax_section. */
|
when we leave sh_coff_relax_section. */
|
ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
|
ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
|
if (ocontents == NULL)
|
if (ocontents == NULL)
|
return false;
|
return false;
|
if (! bfd_get_section_contents (abfd, o, ocontents,
|
if (! bfd_get_section_contents (abfd, o, ocontents,
|
(file_ptr) 0,
|
(file_ptr) 0,
|
o->_raw_size))
|
o->_raw_size))
|
return false;
|
return false;
|
elf_section_data (o)->this_hdr.contents = ocontents;
|
elf_section_data (o)->this_hdr.contents = ocontents;
|
}
|
}
|
}
|
}
|
|
|
stop = irelscan->r_offset;
|
stop = irelscan->r_offset;
|
start
|
start
|
= (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend);
|
= (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend);
|
|
|
/* STOP is in a different section, so it won't change. */
|
/* STOP is in a different section, so it won't change. */
|
if (start > addr && start < toaddr)
|
if (start > addr && start < toaddr)
|
irelscan->r_addend += count;
|
irelscan->r_addend += count;
|
|
|
voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset);
|
voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset);
|
stop = (bfd_vma) ((bfd_signed_vma) start + voff);
|
stop = (bfd_vma) ((bfd_signed_vma) start + voff);
|
|
|
if (start > addr
|
if (start > addr
|
&& start < toaddr
|
&& start < toaddr
|
&& (stop <= addr || stop >= toaddr))
|
&& (stop <= addr || stop >= toaddr))
|
bfd_put_signed_32 (abfd, voff + count,
|
bfd_put_signed_32 (abfd, voff + count,
|
ocontents + irelscan->r_offset);
|
ocontents + irelscan->r_offset);
|
else if (stop > addr
|
else if (stop > addr
|
&& stop < toaddr
|
&& stop < toaddr
|
&& (start <= addr || start >= toaddr))
|
&& (start <= addr || start >= toaddr))
|
bfd_put_signed_32 (abfd, voff - count,
|
bfd_put_signed_32 (abfd, voff - count,
|
ocontents + irelscan->r_offset);
|
ocontents + irelscan->r_offset);
|
}
|
}
|
|
|
if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32)
|
if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32)
|
continue;
|
continue;
|
|
|
if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
|
if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info)
|
continue;
|
continue;
|
|
|
bfd_elf32_swap_symbol_in (abfd,
|
bfd_elf32_swap_symbol_in (abfd,
|
extsyms + ELF32_R_SYM (irelscan->r_info),
|
extsyms + ELF32_R_SYM (irelscan->r_info),
|
&sym);
|
&sym);
|
|
|
if (sym.st_shndx == shndx
|
if (sym.st_shndx == shndx
|
&& (sym.st_value <= addr
|
&& (sym.st_value <= addr
|
|| sym.st_value >= toaddr))
|
|| sym.st_value >= toaddr))
|
{
|
{
|
bfd_vma val;
|
bfd_vma val;
|
|
|
if (ocontents == NULL)
|
if (ocontents == NULL)
|
{
|
{
|
if (elf_section_data (o)->this_hdr.contents != NULL)
|
if (elf_section_data (o)->this_hdr.contents != NULL)
|
ocontents = elf_section_data (o)->this_hdr.contents;
|
ocontents = elf_section_data (o)->this_hdr.contents;
|
else
|
else
|
{
|
{
|
/* We always cache the section contents.
|
/* We always cache the section contents.
|
Perhaps, if info->keep_memory is false, we
|
Perhaps, if info->keep_memory is false, we
|
should free them, if we are permitted to,
|
should free them, if we are permitted to,
|
when we leave sh_coff_relax_section. */
|
when we leave sh_coff_relax_section. */
|
ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
|
ocontents = (bfd_byte *) bfd_malloc (o->_raw_size);
|
if (ocontents == NULL)
|
if (ocontents == NULL)
|
return false;
|
return false;
|
if (! bfd_get_section_contents (abfd, o, ocontents,
|
if (! bfd_get_section_contents (abfd, o, ocontents,
|
(file_ptr) 0,
|
(file_ptr) 0,
|
o->_raw_size))
|
o->_raw_size))
|
return false;
|
return false;
|
elf_section_data (o)->this_hdr.contents = ocontents;
|
elf_section_data (o)->this_hdr.contents = ocontents;
|
}
|
}
|
}
|
}
|
|
|
val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
|
val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
|
val += sym.st_value;
|
val += sym.st_value;
|
if (val > addr && val < toaddr)
|
if (val > addr && val < toaddr)
|
bfd_put_32 (abfd, val - count,
|
bfd_put_32 (abfd, val - count,
|
ocontents + irelscan->r_offset);
|
ocontents + irelscan->r_offset);
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Adjust the local symbols defined in this section. */
|
/* Adjust the local symbols defined in this section. */
|
esym = extsyms;
|
esym = extsyms;
|
esymend = esym + symtab_hdr->sh_info;
|
esymend = esym + symtab_hdr->sh_info;
|
for (; esym < esymend; esym++)
|
for (; esym < esymend; esym++)
|
{
|
{
|
Elf_Internal_Sym isym;
|
Elf_Internal_Sym isym;
|
|
|
bfd_elf32_swap_symbol_in (abfd, esym, &isym);
|
bfd_elf32_swap_symbol_in (abfd, esym, &isym);
|
|
|
if (isym.st_shndx == shndx
|
if (isym.st_shndx == shndx
|
&& isym.st_value > addr
|
&& isym.st_value > addr
|
&& isym.st_value < toaddr)
|
&& isym.st_value < toaddr)
|
{
|
{
|
isym.st_value -= count;
|
isym.st_value -= count;
|
bfd_elf32_swap_symbol_out (abfd, &isym, esym);
|
bfd_elf32_swap_symbol_out (abfd, &isym, esym);
|
}
|
}
|
}
|
}
|
|
|
/* Now adjust the global symbols defined in this section. */
|
/* Now adjust the global symbols defined in this section. */
|
esym = extsyms + symtab_hdr->sh_info;
|
esym = extsyms + symtab_hdr->sh_info;
|
esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
|
esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
|
for (index = 0; esym < esymend; esym++, index++)
|
for (index = 0; esym < esymend; esym++, index++)
|
{
|
{
|
Elf_Internal_Sym isym;
|
Elf_Internal_Sym isym;
|
|
|
bfd_elf32_swap_symbol_in (abfd, esym, &isym);
|
bfd_elf32_swap_symbol_in (abfd, esym, &isym);
|
sym_hash = elf_sym_hashes (abfd)[index];
|
sym_hash = elf_sym_hashes (abfd)[index];
|
if (isym.st_shndx == shndx
|
if (isym.st_shndx == shndx
|
&& ((sym_hash)->root.type == bfd_link_hash_defined
|
&& ((sym_hash)->root.type == bfd_link_hash_defined
|
|| (sym_hash)->root.type == bfd_link_hash_defweak)
|
|| (sym_hash)->root.type == bfd_link_hash_defweak)
|
&& (sym_hash)->root.u.def.section == sec
|
&& (sym_hash)->root.u.def.section == sec
|
&& (sym_hash)->root.u.def.value > addr
|
&& (sym_hash)->root.u.def.value > addr
|
&& (sym_hash)->root.u.def.value < toaddr)
|
&& (sym_hash)->root.u.def.value < toaddr)
|
{
|
{
|
(sym_hash)->root.u.def.value -= count;
|
(sym_hash)->root.u.def.value -= count;
|
}
|
}
|
}
|
}
|
|
|
/* See if we can move the ALIGN reloc forward. We have adjusted
|
/* See if we can move the ALIGN reloc forward. We have adjusted
|
r_offset for it already. */
|
r_offset for it already. */
|
if (irelalign != NULL)
|
if (irelalign != NULL)
|
{
|
{
|
bfd_vma alignto, alignaddr;
|
bfd_vma alignto, alignaddr;
|
|
|
alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
|
alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend);
|
alignaddr = BFD_ALIGN (irelalign->r_offset,
|
alignaddr = BFD_ALIGN (irelalign->r_offset,
|
1 << irelalign->r_addend);
|
1 << irelalign->r_addend);
|
if (alignto != alignaddr)
|
if (alignto != alignaddr)
|
{
|
{
|
/* Tail recursion. */
|
/* Tail recursion. */
|
return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
|
return sh_elf_relax_delete_bytes (abfd, sec, alignaddr,
|
alignto - alignaddr);
|
alignto - alignaddr);
|
}
|
}
|
}
|
}
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
/* Look for loads and stores which we can align to four byte
|
/* Look for loads and stores which we can align to four byte
|
boundaries. This is like sh_align_loads in coff-sh.c. */
|
boundaries. This is like sh_align_loads in coff-sh.c. */
|
|
|
static boolean
|
static boolean
|
sh_elf_align_loads (abfd, sec, internal_relocs, contents, pswapped)
|
sh_elf_align_loads (abfd, sec, internal_relocs, contents, pswapped)
|
bfd *abfd;
|
bfd *abfd;
|
asection *sec;
|
asection *sec;
|
Elf_Internal_Rela *internal_relocs;
|
Elf_Internal_Rela *internal_relocs;
|
bfd_byte *contents;
|
bfd_byte *contents;
|
boolean *pswapped;
|
boolean *pswapped;
|
{
|
{
|
Elf_Internal_Rela *irel, *irelend;
|
Elf_Internal_Rela *irel, *irelend;
|
bfd_vma *labels = NULL;
|
bfd_vma *labels = NULL;
|
bfd_vma *label, *label_end;
|
bfd_vma *label, *label_end;
|
|
|
*pswapped = false;
|
*pswapped = false;
|
|
|
irelend = internal_relocs + sec->reloc_count;
|
irelend = internal_relocs + sec->reloc_count;
|
|
|
/* Get all the addresses with labels on them. */
|
/* Get all the addresses with labels on them. */
|
labels = (bfd_vma *) bfd_malloc (sec->reloc_count * sizeof (bfd_vma));
|
labels = (bfd_vma *) bfd_malloc (sec->reloc_count * sizeof (bfd_vma));
|
if (labels == NULL)
|
if (labels == NULL)
|
goto error_return;
|
goto error_return;
|
label_end = labels;
|
label_end = labels;
|
for (irel = internal_relocs; irel < irelend; irel++)
|
for (irel = internal_relocs; irel < irelend; irel++)
|
{
|
{
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL)
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL)
|
{
|
{
|
*label_end = irel->r_offset;
|
*label_end = irel->r_offset;
|
++label_end;
|
++label_end;
|
}
|
}
|
}
|
}
|
|
|
/* Note that the assembler currently always outputs relocs in
|
/* Note that the assembler currently always outputs relocs in
|
address order. If that ever changes, this code will need to sort
|
address order. If that ever changes, this code will need to sort
|
the label values and the relocs. */
|
the label values and the relocs. */
|
|
|
label = labels;
|
label = labels;
|
|
|
for (irel = internal_relocs; irel < irelend; irel++)
|
for (irel = internal_relocs; irel < irelend; irel++)
|
{
|
{
|
bfd_vma start, stop;
|
bfd_vma start, stop;
|
|
|
if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE)
|
if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE)
|
continue;
|
continue;
|
|
|
start = irel->r_offset;
|
start = irel->r_offset;
|
|
|
for (irel++; irel < irelend; irel++)
|
for (irel++; irel < irelend; irel++)
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA)
|
if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA)
|
break;
|
break;
|
if (irel < irelend)
|
if (irel < irelend)
|
stop = irel->r_offset;
|
stop = irel->r_offset;
|
else
|
else
|
stop = sec->_cooked_size;
|
stop = sec->_cooked_size;
|
|
|
if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
|
if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns,
|
(PTR) internal_relocs, &label,
|
(PTR) internal_relocs, &label,
|
label_end, start, stop, pswapped))
|
label_end, start, stop, pswapped))
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
free (labels);
|
free (labels);
|
|
|
return true;
|
return true;
|
|
|
error_return:
|
error_return:
|
if (labels != NULL)
|
if (labels != NULL)
|
free (labels);
|
free (labels);
|
return false;
|
return false;
|
}
|
}
|
|
|
/* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
|
/* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
|
|
|
static boolean
|
static boolean
|
sh_elf_swap_insns (abfd, sec, relocs, contents, addr)
|
sh_elf_swap_insns (abfd, sec, relocs, contents, addr)
|
bfd *abfd;
|
bfd *abfd;
|
asection *sec;
|
asection *sec;
|
PTR relocs;
|
PTR relocs;
|
bfd_byte *contents;
|
bfd_byte *contents;
|
bfd_vma addr;
|
bfd_vma addr;
|
{
|
{
|
Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
|
Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs;
|
unsigned short i1, i2;
|
unsigned short i1, i2;
|
Elf_Internal_Rela *irel, *irelend;
|
Elf_Internal_Rela *irel, *irelend;
|
|
|
/* Swap the instructions themselves. */
|
/* Swap the instructions themselves. */
|
i1 = bfd_get_16 (abfd, contents + addr);
|
i1 = bfd_get_16 (abfd, contents + addr);
|
i2 = bfd_get_16 (abfd, contents + addr + 2);
|
i2 = bfd_get_16 (abfd, contents + addr + 2);
|
bfd_put_16 (abfd, i2, contents + addr);
|
bfd_put_16 (abfd, i2, contents + addr);
|
bfd_put_16 (abfd, i1, contents + addr + 2);
|
bfd_put_16 (abfd, i1, contents + addr + 2);
|
|
|
/* Adjust all reloc addresses. */
|
/* Adjust all reloc addresses. */
|
irelend = internal_relocs + sec->reloc_count;
|
irelend = internal_relocs + sec->reloc_count;
|
for (irel = internal_relocs; irel < irelend; irel++)
|
for (irel = internal_relocs; irel < irelend; irel++)
|
{
|
{
|
enum elf_sh_reloc_type type;
|
enum elf_sh_reloc_type type;
|
int add;
|
int add;
|
|
|
/* There are a few special types of relocs that we don't want to
|
/* There are a few special types of relocs that we don't want to
|
adjust. These relocs do not apply to the instruction itself,
|
adjust. These relocs do not apply to the instruction itself,
|
but are only associated with the address. */
|
but are only associated with the address. */
|
type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
|
type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info);
|
if (type == R_SH_ALIGN
|
if (type == R_SH_ALIGN
|
|| type == R_SH_CODE
|
|| type == R_SH_CODE
|
|| type == R_SH_DATA
|
|| type == R_SH_DATA
|
|| type == R_SH_LABEL)
|
|| type == R_SH_LABEL)
|
continue;
|
continue;
|
|
|
/* If an R_SH_USES reloc points to one of the addresses being
|
/* If an R_SH_USES reloc points to one of the addresses being
|
swapped, we must adjust it. It would be incorrect to do this
|
swapped, we must adjust it. It would be incorrect to do this
|
for a jump, though, since we want to execute both
|
for a jump, though, since we want to execute both
|
instructions after the jump. (We have avoided swapping
|
instructions after the jump. (We have avoided swapping
|
around a label, so the jump will not wind up executing an
|
around a label, so the jump will not wind up executing an
|
instruction it shouldn't). */
|
instruction it shouldn't). */
|
if (type == R_SH_USES)
|
if (type == R_SH_USES)
|
{
|
{
|
bfd_vma off;
|
bfd_vma off;
|
|
|
off = irel->r_offset + 4 + irel->r_addend;
|
off = irel->r_offset + 4 + irel->r_addend;
|
if (off == addr)
|
if (off == addr)
|
irel->r_offset += 2;
|
irel->r_offset += 2;
|
else if (off == addr + 2)
|
else if (off == addr + 2)
|
irel->r_offset -= 2;
|
irel->r_offset -= 2;
|
}
|
}
|
|
|
if (irel->r_offset == addr)
|
if (irel->r_offset == addr)
|
{
|
{
|
irel->r_offset += 2;
|
irel->r_offset += 2;
|
add = -2;
|
add = -2;
|
}
|
}
|
else if (irel->r_offset == addr + 2)
|
else if (irel->r_offset == addr + 2)
|
{
|
{
|
irel->r_offset -= 2;
|
irel->r_offset -= 2;
|
add = 2;
|
add = 2;
|
}
|
}
|
else
|
else
|
add = 0;
|
add = 0;
|
|
|
if (add != 0)
|
if (add != 0)
|
{
|
{
|
bfd_byte *loc;
|
bfd_byte *loc;
|
unsigned short insn, oinsn;
|
unsigned short insn, oinsn;
|
boolean overflow;
|
boolean overflow;
|
|
|
loc = contents + irel->r_offset;
|
loc = contents + irel->r_offset;
|
overflow = false;
|
overflow = false;
|
switch (type)
|
switch (type)
|
{
|
{
|
default:
|
default:
|
break;
|
break;
|
|
|
case R_SH_DIR8WPN:
|
case R_SH_DIR8WPN:
|
case R_SH_DIR8WPZ:
|
case R_SH_DIR8WPZ:
|
insn = bfd_get_16 (abfd, loc);
|
insn = bfd_get_16 (abfd, loc);
|
oinsn = insn;
|
oinsn = insn;
|
insn += add / 2;
|
insn += add / 2;
|
if ((oinsn & 0xff00) != (insn & 0xff00))
|
if ((oinsn & 0xff00) != (insn & 0xff00))
|
overflow = true;
|
overflow = true;
|
bfd_put_16 (abfd, insn, loc);
|
bfd_put_16 (abfd, insn, loc);
|
break;
|
break;
|
|
|
case R_SH_IND12W:
|
case R_SH_IND12W:
|
insn = bfd_get_16 (abfd, loc);
|
insn = bfd_get_16 (abfd, loc);
|
oinsn = insn;
|
oinsn = insn;
|
insn += add / 2;
|
insn += add / 2;
|
if ((oinsn & 0xf000) != (insn & 0xf000))
|
if ((oinsn & 0xf000) != (insn & 0xf000))
|
overflow = true;
|
overflow = true;
|
bfd_put_16 (abfd, insn, loc);
|
bfd_put_16 (abfd, insn, loc);
|
break;
|
break;
|
|
|
case R_SH_DIR8WPL:
|
case R_SH_DIR8WPL:
|
/* This reloc ignores the least significant 3 bits of
|
/* This reloc ignores the least significant 3 bits of
|
the program counter before adding in the offset.
|
the program counter before adding in the offset.
|
This means that if ADDR is at an even address, the
|
This means that if ADDR is at an even address, the
|
swap will not affect the offset. If ADDR is an at an
|
swap will not affect the offset. If ADDR is an at an
|
odd address, then the instruction will be crossing a
|
odd address, then the instruction will be crossing a
|
four byte boundary, and must be adjusted. */
|
four byte boundary, and must be adjusted. */
|
if ((addr & 3) != 0)
|
if ((addr & 3) != 0)
|
{
|
{
|
insn = bfd_get_16 (abfd, loc);
|
insn = bfd_get_16 (abfd, loc);
|
oinsn = insn;
|
oinsn = insn;
|
insn += add / 2;
|
insn += add / 2;
|
if ((oinsn & 0xff00) != (insn & 0xff00))
|
if ((oinsn & 0xff00) != (insn & 0xff00))
|
overflow = true;
|
overflow = true;
|
bfd_put_16 (abfd, insn, loc);
|
bfd_put_16 (abfd, insn, loc);
|
}
|
}
|
|
|
break;
|
break;
|
}
|
}
|
|
|
if (overflow)
|
if (overflow)
|
{
|
{
|
((*_bfd_error_handler)
|
((*_bfd_error_handler)
|
(_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
|
(_("%s: 0x%lx: fatal: reloc overflow while relaxing"),
|
bfd_get_filename (abfd), (unsigned long) irel->r_offset));
|
bfd_get_filename (abfd), (unsigned long) irel->r_offset));
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return false;
|
return false;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
/* Relocate an SH ELF section. */
|
/* Relocate an SH ELF section. */
|
|
|
static boolean
|
static boolean
|
sh_elf_relocate_section (output_bfd, info, input_bfd, input_section,
|
sh_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;
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
struct elf_link_hash_entry **sym_hashes;
|
struct elf_link_hash_entry **sym_hashes;
|
Elf_Internal_Rela *rel, *relend;
|
Elf_Internal_Rela *rel, *relend;
|
|
|
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);
|
|
|
rel = relocs;
|
rel = relocs;
|
relend = relocs + input_section->reloc_count;
|
relend = relocs + input_section->reloc_count;
|
for (; rel < relend; rel++)
|
for (; rel < relend; rel++)
|
{
|
{
|
int r_type;
|
int r_type;
|
reloc_howto_type *howto;
|
reloc_howto_type *howto;
|
unsigned long r_symndx;
|
unsigned long r_symndx;
|
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_vma addend = (bfd_vma)0;
|
bfd_vma addend = (bfd_vma)0;
|
bfd_reloc_status_type r;
|
bfd_reloc_status_type r;
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
|
|
if (info->relocateable)
|
if (info->relocateable)
|
{
|
{
|
/* This is a relocateable link. We don't have to change
|
/* This is a relocateable link. We don't have to change
|
anything, unless the reloc is against a section symbol,
|
anything, unless the reloc is against a section symbol,
|
in which case we have to adjust according to where the
|
in which case we have to adjust according to where the
|
section symbol winds up in the output section. */
|
section symbol winds up in the output section. */
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
{
|
{
|
sym = local_syms + r_symndx;
|
sym = local_syms + r_symndx;
|
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
|
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
|
{
|
{
|
sec = local_sections[r_symndx];
|
sec = local_sections[r_symndx];
|
rel->r_addend += sec->output_offset + sym->st_value;
|
rel->r_addend += sec->output_offset + sym->st_value;
|
}
|
}
|
}
|
}
|
|
|
continue;
|
continue;
|
}
|
}
|
|
|
r_type = ELF32_R_TYPE (rel->r_info);
|
r_type = ELF32_R_TYPE (rel->r_info);
|
|
|
/* Many of the relocs are only used for relaxing, and are
|
/* Many of the relocs are only used for relaxing, and are
|
handled entirely by the relaxation code. */
|
handled entirely by the relaxation code. */
|
if (r_type > (int) R_SH_LAST_INVALID_RELOC
|
if (r_type > (int) R_SH_LAST_INVALID_RELOC
|
&& r_type < (int) R_SH_LOOP_START)
|
&& r_type < (int) R_SH_LOOP_START)
|
continue;
|
continue;
|
|
|
if (r_type < 0
|
if (r_type < 0
|
|| (r_type >= (int) R_SH_FIRST_INVALID_RELOC
|
|| (r_type >= (int) R_SH_FIRST_INVALID_RELOC
|
&& r_type <= (int) R_SH_LAST_INVALID_RELOC))
|
&& r_type <= (int) R_SH_LAST_INVALID_RELOC))
|
{
|
{
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return false;
|
return false;
|
}
|
}
|
|
|
/* FIXME: This is certainly incorrect. However, it is how the
|
/* FIXME: This is certainly incorrect. However, it is how the
|
COFF linker works. */
|
COFF linker works. */
|
if (r_type != (int) R_SH_DIR32
|
if (r_type != (int) R_SH_DIR32
|
&& r_type != (int) R_SH_IND12W
|
&& r_type != (int) R_SH_IND12W
|
&& r_type != (int) R_SH_LOOP_START
|
&& r_type != (int) R_SH_LOOP_START
|
&& r_type != (int) R_SH_LOOP_END)
|
&& r_type != (int) R_SH_LOOP_END)
|
continue;
|
continue;
|
|
|
howto = sh_elf_howto_table + r_type;
|
howto = sh_elf_howto_table + r_type;
|
|
|
/* This is a final link. */
|
/* This is a final link. */
|
h = NULL;
|
h = NULL;
|
sym = NULL;
|
sym = NULL;
|
sec = NULL;
|
sec = NULL;
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
{
|
{
|
/* There is nothing to be done for an internal IND12W
|
/* There is nothing to be done for an internal IND12W
|
relocation. FIXME: This is probably wrong, but it's how
|
relocation. FIXME: This is probably wrong, but it's how
|
the COFF relocations work. */
|
the COFF relocations work. */
|
if (r_type == (int) R_SH_IND12W)
|
if (r_type == (int) R_SH_IND12W)
|
continue;
|
continue;
|
sym = local_syms + r_symndx;
|
sym = local_syms + r_symndx;
|
sec = local_sections[r_symndx];
|
sec = local_sections[r_symndx];
|
relocation = (sec->output_section->vma
|
relocation = (sec->output_section->vma
|
+ sec->output_offset
|
+ sec->output_offset
|
+ sym->st_value);
|
+ sym->st_value);
|
}
|
}
|
else
|
else
|
{
|
{
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
while (h->root.type == bfd_link_hash_indirect
|
while (h->root.type == bfd_link_hash_indirect
|
|| h->root.type == bfd_link_hash_warning)
|
|| h->root.type == bfd_link_hash_warning)
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
if (h->root.type == bfd_link_hash_defined
|
if (h->root.type == bfd_link_hash_defined
|
|| h->root.type == bfd_link_hash_defweak)
|
|| h->root.type == bfd_link_hash_defweak)
|
{
|
{
|
sec = h->root.u.def.section;
|
sec = h->root.u.def.section;
|
relocation = (h->root.u.def.value
|
relocation = (h->root.u.def.value
|
+ sec->output_section->vma
|
+ sec->output_section->vma
|
+ sec->output_offset);
|
+ sec->output_offset);
|
}
|
}
|
else if (h->root.type == bfd_link_hash_undefweak)
|
else if (h->root.type == bfd_link_hash_undefweak)
|
relocation = 0;
|
relocation = 0;
|
else
|
else
|
{
|
{
|
if (! ((*info->callbacks->undefined_symbol)
|
if (! ((*info->callbacks->undefined_symbol)
|
(info, h->root.root.string, input_bfd,
|
(info, h->root.root.string, input_bfd,
|
input_section, rel->r_offset, true)))
|
input_section, rel->r_offset, true)))
|
return false;
|
return false;
|
relocation = 0;
|
relocation = 0;
|
}
|
}
|
}
|
}
|
|
|
/* FIXME: This is how the COFF relocations work. */
|
/* FIXME: This is how the COFF relocations work. */
|
if (r_type == (int) R_SH_IND12W)
|
if (r_type == (int) R_SH_IND12W)
|
relocation -= 4;
|
relocation -= 4;
|
|
|
switch ((int)r_type)
|
switch ((int)r_type)
|
{
|
{
|
case (int)R_SH_DIR32:
|
case (int)R_SH_DIR32:
|
addend = rel->r_addend;
|
addend = rel->r_addend;
|
/* Fall through. */
|
/* Fall through. */
|
default:
|
default:
|
/* COFF relocs don't use the addend. The addend is used for
|
/* COFF relocs don't use the addend. The addend is used for
|
R_SH_DIR32 to be compatible with other compilers. */
|
R_SH_DIR32 to be compatible with other compilers. */
|
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, addend);
|
relocation, addend);
|
break;
|
break;
|
case R_SH_LOOP_START:
|
case R_SH_LOOP_START:
|
{
|
{
|
static bfd_vma start, end;
|
static bfd_vma start, end;
|
|
|
start = (relocation + rel->r_addend
|
start = (relocation + rel->r_addend
|
- (sec->output_section->vma + sec->output_offset));
|
- (sec->output_section->vma + sec->output_offset));
|
r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
|
r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
|
rel->r_offset, sec, start, end);
|
rel->r_offset, sec, start, end);
|
break;
|
break;
|
case R_SH_LOOP_END:
|
case R_SH_LOOP_END:
|
end = (relocation + rel->r_addend
|
end = (relocation + rel->r_addend
|
- (sec->output_section->vma + sec->output_offset));
|
- (sec->output_section->vma + sec->output_offset));
|
r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
|
r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents,
|
rel->r_offset, sec, start, end);
|
rel->r_offset, sec, start, end);
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
if (r != bfd_reloc_ok)
|
if (r != bfd_reloc_ok)
|
{
|
{
|
switch (r)
|
switch (r)
|
{
|
{
|
default:
|
default:
|
case bfd_reloc_outofrange:
|
case bfd_reloc_outofrange:
|
abort ();
|
abort ();
|
case bfd_reloc_overflow:
|
case bfd_reloc_overflow:
|
{
|
{
|
const char *name;
|
const char *name;
|
|
|
if (h != NULL)
|
if (h != NULL)
|
name = h->root.root.string;
|
name = h->root.root.string;
|
else
|
else
|
{
|
{
|
name = (bfd_elf_string_from_elf_section
|
name = (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 (name == NULL)
|
if (name == NULL)
|
return false;
|
return false;
|
if (*name == '\0')
|
if (*name == '\0')
|
name = bfd_section_name (input_bfd, sec);
|
name = bfd_section_name (input_bfd, sec);
|
}
|
}
|
if (! ((*info->callbacks->reloc_overflow)
|
if (! ((*info->callbacks->reloc_overflow)
|
(info, name, howto->name, (bfd_vma) 0,
|
(info, name, howto->name, (bfd_vma) 0,
|
input_bfd, input_section, rel->r_offset)))
|
input_bfd, input_section, rel->r_offset)))
|
return false;
|
return false;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
/* This is a version of bfd_generic_get_relocated_section_contents
|
/* This is a version of bfd_generic_get_relocated_section_contents
|
which uses sh_elf_relocate_section. */
|
which uses sh_elf_relocate_section. */
|
|
|
static bfd_byte *
|
static bfd_byte *
|
sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order,
|
sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order,
|
data, relocateable, symbols)
|
data, relocateable, symbols)
|
bfd *output_bfd;
|
bfd *output_bfd;
|
struct bfd_link_info *link_info;
|
struct bfd_link_info *link_info;
|
struct bfd_link_order *link_order;
|
struct bfd_link_order *link_order;
|
bfd_byte *data;
|
bfd_byte *data;
|
boolean relocateable;
|
boolean relocateable;
|
asymbol **symbols;
|
asymbol **symbols;
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
asection *input_section = link_order->u.indirect.section;
|
asection *input_section = link_order->u.indirect.section;
|
bfd *input_bfd = input_section->owner;
|
bfd *input_bfd = input_section->owner;
|
asection **sections = NULL;
|
asection **sections = NULL;
|
Elf_Internal_Rela *internal_relocs = NULL;
|
Elf_Internal_Rela *internal_relocs = NULL;
|
Elf32_External_Sym *external_syms = NULL;
|
Elf32_External_Sym *external_syms = NULL;
|
Elf_Internal_Sym *internal_syms = NULL;
|
Elf_Internal_Sym *internal_syms = NULL;
|
|
|
/* We only need to handle the case of relaxing, or of having a
|
/* We only need to handle the case of relaxing, or of having a
|
particular set of section contents, specially. */
|
particular set of section contents, specially. */
|
if (relocateable
|
if (relocateable
|
|| elf_section_data (input_section)->this_hdr.contents == NULL)
|
|| elf_section_data (input_section)->this_hdr.contents == NULL)
|
return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
|
return bfd_generic_get_relocated_section_contents (output_bfd, link_info,
|
link_order, data,
|
link_order, data,
|
relocateable,
|
relocateable,
|
symbols);
|
symbols);
|
|
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
|
|
|
memcpy (data, elf_section_data (input_section)->this_hdr.contents,
|
memcpy (data, elf_section_data (input_section)->this_hdr.contents,
|
input_section->_raw_size);
|
input_section->_raw_size);
|
|
|
if ((input_section->flags & SEC_RELOC) != 0
|
if ((input_section->flags & SEC_RELOC) != 0
|
&& input_section->reloc_count > 0)
|
&& input_section->reloc_count > 0)
|
{
|
{
|
Elf_Internal_Sym *isymp;
|
Elf_Internal_Sym *isymp;
|
asection **secpp;
|
asection **secpp;
|
Elf32_External_Sym *esym, *esymend;
|
Elf32_External_Sym *esym, *esymend;
|
|
|
if (symtab_hdr->contents != NULL)
|
if (symtab_hdr->contents != NULL)
|
external_syms = (Elf32_External_Sym *) symtab_hdr->contents;
|
external_syms = (Elf32_External_Sym *) symtab_hdr->contents;
|
else
|
else
|
{
|
{
|
external_syms = ((Elf32_External_Sym *)
|
external_syms = ((Elf32_External_Sym *)
|
bfd_malloc (symtab_hdr->sh_info
|
bfd_malloc (symtab_hdr->sh_info
|
* sizeof (Elf32_External_Sym)));
|
* sizeof (Elf32_External_Sym)));
|
if (external_syms == NULL && symtab_hdr->sh_info > 0)
|
if (external_syms == NULL && symtab_hdr->sh_info > 0)
|
goto error_return;
|
goto error_return;
|
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0
|
|| (bfd_read (external_syms, sizeof (Elf32_External_Sym),
|
|| (bfd_read (external_syms, sizeof (Elf32_External_Sym),
|
symtab_hdr->sh_info, input_bfd)
|
symtab_hdr->sh_info, input_bfd)
|
!= (symtab_hdr->sh_info * sizeof (Elf32_External_Sym))))
|
!= (symtab_hdr->sh_info * sizeof (Elf32_External_Sym))))
|
goto error_return;
|
goto error_return;
|
}
|
}
|
|
|
internal_relocs = (_bfd_elf32_link_read_relocs
|
internal_relocs = (_bfd_elf32_link_read_relocs
|
(input_bfd, input_section, (PTR) NULL,
|
(input_bfd, input_section, (PTR) NULL,
|
(Elf_Internal_Rela *) NULL, false));
|
(Elf_Internal_Rela *) NULL, false));
|
if (internal_relocs == NULL)
|
if (internal_relocs == NULL)
|
goto error_return;
|
goto error_return;
|
|
|
internal_syms = ((Elf_Internal_Sym *)
|
internal_syms = ((Elf_Internal_Sym *)
|
bfd_malloc (symtab_hdr->sh_info
|
bfd_malloc (symtab_hdr->sh_info
|
* sizeof (Elf_Internal_Sym)));
|
* sizeof (Elf_Internal_Sym)));
|
if (internal_syms == NULL && symtab_hdr->sh_info > 0)
|
if (internal_syms == NULL && symtab_hdr->sh_info > 0)
|
goto error_return;
|
goto error_return;
|
|
|
sections = (asection **) bfd_malloc (symtab_hdr->sh_info
|
sections = (asection **) bfd_malloc (symtab_hdr->sh_info
|
* sizeof (asection *));
|
* sizeof (asection *));
|
if (sections == NULL && symtab_hdr->sh_info > 0)
|
if (sections == NULL && symtab_hdr->sh_info > 0)
|
goto error_return;
|
goto error_return;
|
|
|
isymp = internal_syms;
|
isymp = internal_syms;
|
secpp = sections;
|
secpp = sections;
|
esym = external_syms;
|
esym = external_syms;
|
esymend = esym + symtab_hdr->sh_info;
|
esymend = esym + symtab_hdr->sh_info;
|
for (; esym < esymend; ++esym, ++isymp, ++secpp)
|
for (; esym < esymend; ++esym, ++isymp, ++secpp)
|
{
|
{
|
asection *isec;
|
asection *isec;
|
|
|
bfd_elf32_swap_symbol_in (input_bfd, esym, isymp);
|
bfd_elf32_swap_symbol_in (input_bfd, esym, isymp);
|
|
|
if (isymp->st_shndx == SHN_UNDEF)
|
if (isymp->st_shndx == SHN_UNDEF)
|
isec = bfd_und_section_ptr;
|
isec = bfd_und_section_ptr;
|
else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
|
else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE)
|
isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
|
isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx);
|
else if (isymp->st_shndx == SHN_ABS)
|
else if (isymp->st_shndx == SHN_ABS)
|
isec = bfd_abs_section_ptr;
|
isec = bfd_abs_section_ptr;
|
else if (isymp->st_shndx == SHN_COMMON)
|
else if (isymp->st_shndx == SHN_COMMON)
|
isec = bfd_com_section_ptr;
|
isec = bfd_com_section_ptr;
|
else
|
else
|
{
|
{
|
/* Who knows? */
|
/* Who knows? */
|
isec = NULL;
|
isec = NULL;
|
}
|
}
|
|
|
*secpp = isec;
|
*secpp = isec;
|
}
|
}
|
|
|
if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
|
if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd,
|
input_section, data, internal_relocs,
|
input_section, data, internal_relocs,
|
internal_syms, sections))
|
internal_syms, sections))
|
goto error_return;
|
goto error_return;
|
|
|
if (sections != NULL)
|
if (sections != NULL)
|
free (sections);
|
free (sections);
|
sections = NULL;
|
sections = NULL;
|
if (internal_syms != NULL)
|
if (internal_syms != NULL)
|
free (internal_syms);
|
free (internal_syms);
|
internal_syms = NULL;
|
internal_syms = NULL;
|
if (external_syms != NULL && symtab_hdr->contents == NULL)
|
if (external_syms != NULL && symtab_hdr->contents == NULL)
|
free (external_syms);
|
free (external_syms);
|
external_syms = NULL;
|
external_syms = NULL;
|
if (internal_relocs != elf_section_data (input_section)->relocs)
|
if (internal_relocs != elf_section_data (input_section)->relocs)
|
free (internal_relocs);
|
free (internal_relocs);
|
internal_relocs = NULL;
|
internal_relocs = NULL;
|
}
|
}
|
|
|
return data;
|
return data;
|
|
|
error_return:
|
error_return:
|
if (internal_relocs != NULL
|
if (internal_relocs != NULL
|
&& internal_relocs != elf_section_data (input_section)->relocs)
|
&& internal_relocs != elf_section_data (input_section)->relocs)
|
free (internal_relocs);
|
free (internal_relocs);
|
if (external_syms != NULL && symtab_hdr->contents == NULL)
|
if (external_syms != NULL && symtab_hdr->contents == NULL)
|
free (external_syms);
|
free (external_syms);
|
if (internal_syms != NULL)
|
if (internal_syms != NULL)
|
free (internal_syms);
|
free (internal_syms);
|
if (sections != NULL)
|
if (sections != NULL)
|
free (sections);
|
free (sections);
|
return NULL;
|
return NULL;
|
}
|
}
|
static asection *
|
static asection *
|
sh_elf_gc_mark_hook (abfd, info, rel, h, sym)
|
sh_elf_gc_mark_hook (abfd, info, rel, h, sym)
|
bfd *abfd;
|
bfd *abfd;
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
Elf_Internal_Rela *rel;
|
Elf_Internal_Rela *rel;
|
struct elf_link_hash_entry *h;
|
struct elf_link_hash_entry *h;
|
Elf_Internal_Sym *sym;
|
Elf_Internal_Sym *sym;
|
{
|
{
|
if (h != NULL)
|
if (h != NULL)
|
{
|
{
|
switch (ELF32_R_TYPE (rel->r_info))
|
switch (ELF32_R_TYPE (rel->r_info))
|
{
|
{
|
case R_SH_GNU_VTINHERIT:
|
case R_SH_GNU_VTINHERIT:
|
case R_SH_GNU_VTENTRY:
|
case R_SH_GNU_VTENTRY:
|
break;
|
break;
|
|
|
default:
|
default:
|
switch (h->root.type)
|
switch (h->root.type)
|
{
|
{
|
case bfd_link_hash_defined:
|
case bfd_link_hash_defined:
|
case bfd_link_hash_defweak:
|
case bfd_link_hash_defweak:
|
return h->root.u.def.section;
|
return h->root.u.def.section;
|
|
|
case bfd_link_hash_common:
|
case bfd_link_hash_common:
|
return h->root.u.c.p->section;
|
return h->root.u.c.p->section;
|
|
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
if (!(elf_bad_symtab (abfd)
|
if (!(elf_bad_symtab (abfd)
|
&& ELF_ST_BIND (sym->st_info) != STB_LOCAL)
|
&& ELF_ST_BIND (sym->st_info) != STB_LOCAL)
|
&& ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
|
&& ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
|
&& sym->st_shndx != SHN_COMMON))
|
&& sym->st_shndx != SHN_COMMON))
|
{
|
{
|
return bfd_section_from_elf_index (abfd, sym->st_shndx);
|
return bfd_section_from_elf_index (abfd, sym->st_shndx);
|
}
|
}
|
}
|
}
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
static boolean
|
static boolean
|
sh_elf_gc_sweep_hook (abfd, info, sec, relocs)
|
sh_elf_gc_sweep_hook (abfd, info, sec, relocs)
|
bfd *abfd ATTRIBUTE_UNUSED;
|
bfd *abfd ATTRIBUTE_UNUSED;
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
struct bfd_link_info *info ATTRIBUTE_UNUSED;
|
asection *sec ATTRIBUTE_UNUSED;
|
asection *sec ATTRIBUTE_UNUSED;
|
const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
|
const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
|
{
|
{
|
/* we don't use got and plt entries for sh. */
|
/* we don't use got and plt entries for sh. */
|
return true;
|
return true;
|
}
|
}
|
|
|
/* Look through the relocs for a section during the first phase.
|
/* Look through the relocs for a section during the first phase.
|
Since we don't do .gots or .plts, we just need to consider the
|
Since we don't do .gots or .plts, we just need to consider the
|
virtual table relocs for gc. */
|
virtual table relocs for gc. */
|
|
|
static boolean
|
static boolean
|
sh_elf_check_relocs (abfd, info, sec, relocs)
|
sh_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;
|
{
|
{
|
Elf_Internal_Shdr *symtab_hdr;
|
Elf_Internal_Shdr *symtab_hdr;
|
struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
|
struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
|
const Elf_Internal_Rela *rel;
|
const Elf_Internal_Rela *rel;
|
const Elf_Internal_Rela *rel_end;
|
const Elf_Internal_Rela *rel_end;
|
|
|
if (info->relocateable)
|
if (info->relocateable)
|
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);
|
sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
|
sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
|
if (!elf_bad_symtab (abfd))
|
if (!elf_bad_symtab (abfd))
|
sym_hashes_end -= symtab_hdr->sh_info;
|
sym_hashes_end -= symtab_hdr->sh_info;
|
|
|
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;
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
if (r_symndx < symtab_hdr->sh_info)
|
if (r_symndx < symtab_hdr->sh_info)
|
h = NULL;
|
h = NULL;
|
else
|
else
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
|
|
switch (ELF32_R_TYPE (rel->r_info))
|
switch (ELF32_R_TYPE (rel->r_info))
|
{
|
{
|
/* 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_SH_GNU_VTINHERIT:
|
case R_SH_GNU_VTINHERIT:
|
if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
return false;
|
return false;
|
break;
|
break;
|
|
|
/* This relocation describes which C++ vtable entries are actually
|
/* This relocation describes which C++ vtable entries are actually
|
used. Record for later use during GC. */
|
used. Record for later use during GC. */
|
case R_SH_GNU_VTENTRY:
|
case R_SH_GNU_VTENTRY:
|
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
return false;
|
return false;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
return true;
|
return true;
|
}
|
}
|
|
|
boolean
|
boolean
|
sh_elf_set_mach_from_flags (abfd)
|
sh_elf_set_mach_from_flags (abfd)
|
bfd * abfd;
|
bfd * abfd;
|
{
|
{
|
flagword flags = elf_elfheader (abfd)->e_flags;
|
flagword flags = elf_elfheader (abfd)->e_flags;
|
|
|
switch (flags & EF_SH_MACH_MASK)
|
switch (flags & EF_SH_MACH_MASK)
|
{
|
{
|
case EF_SH1:
|
case EF_SH1:
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh);
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh);
|
break;
|
break;
|
case EF_SH2:
|
case EF_SH2:
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh2);
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh2);
|
break;
|
break;
|
case EF_SH_DSP:
|
case EF_SH_DSP:
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh_dsp);
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh_dsp);
|
break;
|
break;
|
case EF_SH3:
|
case EF_SH3:
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3);
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3);
|
break;
|
break;
|
case EF_SH3_DSP:
|
case EF_SH3_DSP:
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3_dsp);
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3_dsp);
|
break;
|
break;
|
case EF_SH3E:
|
case EF_SH3E:
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3e);
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh3e);
|
break;
|
break;
|
case EF_SH_UNKNOWN:
|
case EF_SH_UNKNOWN:
|
case EF_SH4:
|
case EF_SH4:
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh4);
|
bfd_default_set_arch_mach (abfd, bfd_arch_sh, bfd_mach_sh4);
|
break;
|
break;
|
default:
|
default:
|
return false;
|
return false;
|
}
|
}
|
return true;
|
return true;
|
}
|
}
|
|
|
/* Function to keep SH specific file flags. */
|
/* Function to keep SH specific file flags. */
|
static boolean
|
static boolean
|
sh_elf_set_private_flags (abfd, flags)
|
sh_elf_set_private_flags (abfd, flags)
|
bfd * abfd;
|
bfd * abfd;
|
flagword flags;
|
flagword flags;
|
{
|
{
|
BFD_ASSERT (! elf_flags_init (abfd)
|
BFD_ASSERT (! elf_flags_init (abfd)
|
|| elf_elfheader (abfd)->e_flags == flags);
|
|| elf_elfheader (abfd)->e_flags == flags);
|
|
|
elf_elfheader (abfd)->e_flags = flags;
|
elf_elfheader (abfd)->e_flags = flags;
|
elf_flags_init (abfd) = true;
|
elf_flags_init (abfd) = true;
|
return sh_elf_set_mach_from_flags (abfd);
|
return sh_elf_set_mach_from_flags (abfd);
|
}
|
}
|
|
|
/* Copy backend specific data from one object module to another */
|
/* Copy backend specific data from one object module to another */
|
static boolean
|
static boolean
|
sh_elf_copy_private_data (ibfd, obfd)
|
sh_elf_copy_private_data (ibfd, obfd)
|
bfd * ibfd;
|
bfd * ibfd;
|
bfd * obfd;
|
bfd * obfd;
|
{
|
{
|
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;
|
|
|
return sh_elf_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
|
return sh_elf_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags);
|
}
|
}
|
|
|
/* This routine checks for linking big and little endian objects
|
/* This routine checks for linking big and little endian objects
|
together, and for linking sh-dsp with sh3e / sh4 objects. */
|
together, and for linking sh-dsp with sh3e / sh4 objects. */
|
|
|
static boolean
|
static boolean
|
sh_elf_merge_private_data (ibfd, obfd)
|
sh_elf_merge_private_data (ibfd, obfd)
|
bfd *ibfd;
|
bfd *ibfd;
|
bfd *obfd;
|
bfd *obfd;
|
{
|
{
|
flagword old_flags, new_flags;
|
flagword old_flags, new_flags;
|
|
|
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;
|
|
|
if (! elf_flags_init (obfd))
|
if (! elf_flags_init (obfd))
|
{
|
{
|
elf_flags_init (obfd) = true;
|
elf_flags_init (obfd) = true;
|
elf_elfheader (obfd)->e_flags = 0;
|
elf_elfheader (obfd)->e_flags = 0;
|
}
|
}
|
old_flags = elf_elfheader (obfd)->e_flags;
|
old_flags = elf_elfheader (obfd)->e_flags;
|
new_flags = elf_elfheader (ibfd)->e_flags;
|
new_flags = elf_elfheader (ibfd)->e_flags;
|
if ((EF_SH_HAS_DSP (old_flags) && EF_SH_HAS_FP (new_flags))
|
if ((EF_SH_HAS_DSP (old_flags) && EF_SH_HAS_FP (new_flags))
|
|| (EF_SH_HAS_DSP (new_flags) && EF_SH_HAS_FP (old_flags)))
|
|| (EF_SH_HAS_DSP (new_flags) && EF_SH_HAS_FP (old_flags)))
|
{
|
{
|
(*_bfd_error_handler)
|
(*_bfd_error_handler)
|
("%s: uses %s instructions while previous modules use %s instructions",
|
("%s: uses %s instructions while previous modules use %s instructions",
|
bfd_get_filename (ibfd),
|
bfd_get_filename (ibfd),
|
EF_SH_HAS_DSP (new_flags) ? "dsp" : "floating point",
|
EF_SH_HAS_DSP (new_flags) ? "dsp" : "floating point",
|
EF_SH_HAS_DSP (new_flags) ? "floating point" : "dsp");
|
EF_SH_HAS_DSP (new_flags) ? "floating point" : "dsp");
|
bfd_set_error (bfd_error_bad_value);
|
bfd_set_error (bfd_error_bad_value);
|
return false;
|
return false;
|
}
|
}
|
elf_elfheader (obfd)->e_flags = EF_SH_MERGE_MACH (old_flags, new_flags);
|
elf_elfheader (obfd)->e_flags = EF_SH_MERGE_MACH (old_flags, new_flags);
|
|
|
return sh_elf_set_mach_from_flags (obfd);
|
return sh_elf_set_mach_from_flags (obfd);
|
}
|
}
|
|
|
#define TARGET_BIG_SYM bfd_elf32_sh_vec
|
#define TARGET_BIG_SYM bfd_elf32_sh_vec
|
#define TARGET_BIG_NAME "elf32-sh"
|
#define TARGET_BIG_NAME "elf32-sh"
|
#define TARGET_LITTLE_SYM bfd_elf32_shl_vec
|
#define TARGET_LITTLE_SYM bfd_elf32_shl_vec
|
#define TARGET_LITTLE_NAME "elf32-shl"
|
#define TARGET_LITTLE_NAME "elf32-shl"
|
#define ELF_ARCH bfd_arch_sh
|
#define ELF_ARCH bfd_arch_sh
|
#define ELF_MACHINE_CODE EM_SH
|
#define ELF_MACHINE_CODE EM_SH
|
#define ELF_MAXPAGESIZE 0x1
|
#define ELF_MAXPAGESIZE 0x1
|
|
|
#define elf_symbol_leading_char '_'
|
#define elf_symbol_leading_char '_'
|
|
|
#define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
|
#define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
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#define elf_info_to_howto sh_elf_info_to_howto
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#define elf_info_to_howto sh_elf_info_to_howto
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#define bfd_elf32_bfd_relax_section sh_elf_relax_section
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#define bfd_elf32_bfd_relax_section sh_elf_relax_section
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#define elf_backend_relocate_section sh_elf_relocate_section
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#define elf_backend_relocate_section sh_elf_relocate_section
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#define bfd_elf32_bfd_get_relocated_section_contents \
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#define bfd_elf32_bfd_get_relocated_section_contents \
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sh_elf_get_relocated_section_contents
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sh_elf_get_relocated_section_contents
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#define elf_backend_object_p sh_elf_set_mach_from_flags
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#define elf_backend_object_p sh_elf_set_mach_from_flags
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#define bfd_elf32_bfd_set_private_bfd_flags \
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#define bfd_elf32_bfd_set_private_bfd_flags \
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sh_elf_set_private_flags
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sh_elf_set_private_flags
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#define bfd_elf32_bfd_copy_private_bfd_data \
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#define bfd_elf32_bfd_copy_private_bfd_data \
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sh_elf_copy_private_data
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sh_elf_copy_private_data
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#define bfd_elf32_bfd_merge_private_bfd_data \
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#define bfd_elf32_bfd_merge_private_bfd_data \
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sh_elf_merge_private_data
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sh_elf_merge_private_data
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#define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
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#define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
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#define elf_backend_gc_sweep_hook sh_elf_gc_sweep_hook
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#define elf_backend_gc_sweep_hook sh_elf_gc_sweep_hook
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#define elf_backend_check_relocs sh_elf_check_relocs
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#define elf_backend_check_relocs sh_elf_check_relocs
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#define elf_backend_can_gc_sections 1
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#define elf_backend_can_gc_sections 1
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#include "elf32-target.h"
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#include "elf32-target.h"
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