2000-07-20 16:21:07 +00:00
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/* CRIS-specific support for 32-bit ELF.
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Copyright (C) 2000 Free Software Foundation, Inc.
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Contributed by Axis Communications AB.
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Written by Hans-Peter Nilsson, based on elf32-fr30.c
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "elf-bfd.h"
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#include "elf/cris.h"
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/* Forward declarations. */
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static reloc_howto_type * cris_reloc_type_lookup
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PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
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static void cris_info_to_howto_rela
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PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
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static boolean cris_elf_relocate_section
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PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
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Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
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static bfd_reloc_status_type cris_final_link_relocate
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PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
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Elf_Internal_Rela *, bfd_vma));
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static boolean cris_elf_gc_sweep_hook
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PARAMS ((bfd *, struct bfd_link_info *, asection *,
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const Elf_Internal_Rela *));
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static asection * cris_elf_gc_mark_hook
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PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
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struct elf_link_hash_entry *, Elf_Internal_Sym *));
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Define two bfd_targets for absence and presence of leading
underscore on symbols. Make sure to only link same kind.
* elf32-cris.c (cris_elf_object_p,
cris_elf_final_write_processing, cris_elf_print_private_bfd_data,
cris_elf_merge_private_bfd_data): New.
(elf_backend_object_p, elf_backend_final_write_processing,
bfd_elf32_bfd_print_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data): Define.
<Target vector definition>: Include elf32-target.h twice with
different macro settings:
(TARGET_LITTLE_SYM): First as bfd_elf32_cris_vec, then as
bfd_elf32_us_cris_vec.
(TARGET_LITTLE_NAME): First as "elf32-cris", then "elf32-us-cris".
(elf_symbol_leading_char): First as 0, then '_'.
(INCLUDED_TARGET_FILE): Define for second include of elf32-target.h.
* config.bfd (cris-*-*): Add bfd_elf32_us_cris_vec to targ_selvecs.
* configure.in (bfd_elf32_cris_vec, cris_aout_vec): New vector.
* configure: Regenerate.
* targets.c: Declare bfd_elf32_us_cris_vec.
* po/bfd.pot: Regenerate.
2000-09-29 17:05:22 +00:00
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static boolean cris_elf_object_p PARAMS ((bfd *));
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static void cris_elf_final_write_processing PARAMS ((bfd *, boolean));
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static boolean cris_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
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static boolean cris_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
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2000-07-20 16:21:07 +00:00
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static reloc_howto_type cris_elf_howto_table [] =
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{
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/* This reloc does nothing. */
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HOWTO (R_CRIS_NONE, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_CRIS_NONE", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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false), /* pcrel_offset */
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/* An 8 bit absolute relocation. */
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HOWTO (R_CRIS_8, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_CRIS_8", /* name */
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false, /* partial_inplace */
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0x0000, /* src_mask */
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0x00ff, /* dst_mask */
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false), /* pcrel_offset */
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/* A 16 bit absolute relocation. */
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HOWTO (R_CRIS_16, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_CRIS_16", /* name */
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false, /* partial_inplace */
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0x00000000, /* src_mask */
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0x0000ffff, /* dst_mask */
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false), /* pcrel_offset */
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/* A 32 bit absolute relocation. */
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HOWTO (R_CRIS_32, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_CRIS_32", /* name */
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false, /* partial_inplace */
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0x00000000, /* src_mask */
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0xffffffff, /* dst_mask */
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false), /* pcrel_offset */
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/* An 8 bit absolute relocation. */
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HOWTO (R_CRIS_8_PCREL, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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true, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_CRIS_8_PCREL", /* name */
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false, /* partial_inplace */
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0x0000, /* src_mask */
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0x00ff, /* dst_mask */
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false), /* pcrel_offset */
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/* A 16 bit absolute relocation. */
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HOWTO (R_CRIS_16_PCREL, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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true, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_CRIS_16", /* name */
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false, /* partial_inplace */
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0x00000000, /* src_mask */
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0x0000ffff, /* dst_mask */
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false), /* pcrel_offset */
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/* A 32 bit absolute relocation. */
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HOWTO (R_CRIS_32_PCREL, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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true, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_CRIS_32", /* name */
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false, /* partial_inplace */
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0x00000000, /* src_mask */
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0xffffffff, /* dst_mask */
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false), /* pcrel_offset */
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/* GNU extension to record C++ vtable hierarchy */
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HOWTO (R_CRIS_GNU_VTINHERIT, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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NULL, /* special_function */
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"R_CRIS_GNU_VTINHERIT", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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false), /* pcrel_offset */
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/* GNU extension to record C++ vtable member usage */
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HOWTO (R_CRIS_GNU_VTENTRY, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont, /* complain_on_overflow */
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_bfd_elf_rel_vtable_reloc_fn, /* special_function */
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"R_CRIS_GNU_VTENTRY", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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false) /* pcrel_offset */
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};
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/* Map BFD reloc types to CRIS ELF reloc types. */
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struct cris_reloc_map
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{
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bfd_reloc_code_real_type bfd_reloc_val;
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unsigned int cris_reloc_val;
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};
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static const struct cris_reloc_map cris_reloc_map [] =
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{
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{ BFD_RELOC_NONE, R_CRIS_NONE },
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{ BFD_RELOC_8, R_CRIS_8 },
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{ BFD_RELOC_16, R_CRIS_16 },
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{ BFD_RELOC_32, R_CRIS_32 },
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{ BFD_RELOC_8_PCREL, R_CRIS_8_PCREL },
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{ BFD_RELOC_16_PCREL, R_CRIS_16_PCREL },
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{ BFD_RELOC_32_PCREL, R_CRIS_32_PCREL },
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{ BFD_RELOC_VTABLE_INHERIT, R_CRIS_GNU_VTINHERIT },
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{ BFD_RELOC_VTABLE_ENTRY, R_CRIS_GNU_VTENTRY }
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};
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static reloc_howto_type *
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cris_reloc_type_lookup (abfd, code)
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bfd * abfd ATTRIBUTE_UNUSED;
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bfd_reloc_code_real_type code;
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{
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unsigned int i;
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for (i = sizeof (cris_reloc_map) / sizeof (cris_reloc_map[0]);
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--i;)
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if (cris_reloc_map [i].bfd_reloc_val == code)
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return & cris_elf_howto_table [cris_reloc_map[i].cris_reloc_val];
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return NULL;
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}
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/* Set the howto pointer for an CRIS ELF reloc. */
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static void
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cris_info_to_howto_rela (abfd, cache_ptr, dst)
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bfd * abfd ATTRIBUTE_UNUSED;
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arelent * cache_ptr;
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Elf32_Internal_Rela * dst;
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{
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unsigned int r_type;
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r_type = ELF32_R_TYPE (dst->r_info);
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BFD_ASSERT (r_type < (unsigned int) R_CRIS_max);
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cache_ptr->howto = & cris_elf_howto_table [r_type];
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}
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/* Perform a single relocation. By default we use the standard BFD
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routines, but we might have to do a few relocs ourselves in the future. */
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static bfd_reloc_status_type
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cris_final_link_relocate (howto, input_bfd, input_section, contents, rel,
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relocation)
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reloc_howto_type * howto;
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bfd * input_bfd;
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asection * input_section;
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bfd_byte * contents;
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Elf_Internal_Rela * rel;
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bfd_vma relocation;
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{
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bfd_reloc_status_type r
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= _bfd_final_link_relocate (howto, input_bfd, input_section,
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contents, rel->r_offset,
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relocation, rel->r_addend);
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return r;
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}
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/* Relocate an CRIS ELF section. See elf32-fr30.c, from where this was
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copied, for further comments. */
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static boolean
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cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
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contents, relocs, local_syms, local_sections)
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bfd * output_bfd ATTRIBUTE_UNUSED;
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struct bfd_link_info * info;
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bfd * input_bfd;
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asection * input_section;
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bfd_byte * contents;
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Elf_Internal_Rela * relocs;
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Elf_Internal_Sym * local_syms;
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asection ** local_sections;
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{
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Elf_Internal_Shdr * symtab_hdr;
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struct elf_link_hash_entry ** sym_hashes;
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Elf_Internal_Rela * rel;
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Elf_Internal_Rela * relend;
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symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
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sym_hashes = elf_sym_hashes (input_bfd);
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relend = relocs + input_section->reloc_count;
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|
|
|
|
/* It seems this can happen with erroneous or unsupported input (mixing
|
|
|
|
|
a.out and elf in an archive, for example.) */
|
|
|
|
|
if (sym_hashes == NULL)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
for (rel = relocs; rel < relend; rel ++)
|
|
|
|
|
{
|
|
|
|
|
reloc_howto_type * howto;
|
|
|
|
|
unsigned long r_symndx;
|
|
|
|
|
Elf_Internal_Sym * sym;
|
|
|
|
|
asection * sec;
|
|
|
|
|
struct elf_link_hash_entry * h;
|
|
|
|
|
bfd_vma relocation;
|
|
|
|
|
bfd_reloc_status_type r;
|
|
|
|
|
const char * name = NULL;
|
|
|
|
|
int r_type;
|
|
|
|
|
|
|
|
|
|
r_type = ELF32_R_TYPE (rel->r_info);
|
|
|
|
|
|
|
|
|
|
if ( r_type == R_CRIS_GNU_VTINHERIT
|
|
|
|
|
|| r_type == R_CRIS_GNU_VTENTRY)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
|
|
|
|
|
|
|
|
|
if (info->relocateable)
|
|
|
|
|
{
|
|
|
|
|
/* This is a relocateable link. We don't have to change
|
|
|
|
|
anything, unless the reloc is against a section symbol,
|
|
|
|
|
in which case we have to adjust according to where the
|
|
|
|
|
section symbol winds up in the output section. */
|
|
|
|
|
if (r_symndx < symtab_hdr->sh_info)
|
|
|
|
|
{
|
|
|
|
|
sym = local_syms + r_symndx;
|
|
|
|
|
|
|
|
|
|
if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
|
|
|
|
|
{
|
|
|
|
|
sec = local_sections [r_symndx];
|
|
|
|
|
rel->r_addend += sec->output_offset + sym->st_value;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This is a final link. */
|
|
|
|
|
howto = cris_elf_howto_table + ELF32_R_TYPE (rel->r_info);
|
|
|
|
|
h = NULL;
|
|
|
|
|
sym = NULL;
|
|
|
|
|
sec = NULL;
|
|
|
|
|
|
|
|
|
|
if (r_symndx < symtab_hdr->sh_info)
|
|
|
|
|
{
|
|
|
|
|
sym = local_syms + r_symndx;
|
|
|
|
|
sec = local_sections [r_symndx];
|
|
|
|
|
relocation = (sec->output_section->vma
|
|
|
|
|
+ sec->output_offset
|
|
|
|
|
+ sym->st_value);
|
|
|
|
|
|
|
|
|
|
name = bfd_elf_string_from_elf_section
|
|
|
|
|
(input_bfd, symtab_hdr->sh_link, sym->st_name);
|
|
|
|
|
name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
|
|
|
|
|
#if 0
|
|
|
|
|
fprintf (stderr, "local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
|
|
|
|
|
sec->name, name, sym->st_name,
|
|
|
|
|
sec->output_section->vma, sec->output_offset,
|
|
|
|
|
sym->st_value, rel->r_addend);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
h = sym_hashes [r_symndx - symtab_hdr->sh_info];
|
|
|
|
|
|
|
|
|
|
while (h->root.type == bfd_link_hash_indirect
|
|
|
|
|
|| h->root.type == bfd_link_hash_warning)
|
|
|
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
|
|
|
|
|
|
|
|
|
name = h->root.root.string;
|
|
|
|
|
|
|
|
|
|
if (h->root.type == bfd_link_hash_defined
|
|
|
|
|
|| h->root.type == bfd_link_hash_defweak)
|
|
|
|
|
{
|
|
|
|
|
sec = h->root.u.def.section;
|
|
|
|
|
relocation = (h->root.u.def.value
|
|
|
|
|
+ sec->output_section->vma
|
|
|
|
|
+ sec->output_offset);
|
|
|
|
|
#if 0
|
|
|
|
|
fprintf (stderr,
|
|
|
|
|
"defined: sec: %s, name: %s, value: %x + %x + %x gives: %x\n",
|
|
|
|
|
sec->name, name, h->root.u.def.value,
|
|
|
|
|
sec->output_section->vma, sec->output_offset, relocation);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
else if (h->root.type == bfd_link_hash_undefweak)
|
|
|
|
|
{
|
|
|
|
|
#if 0
|
|
|
|
|
fprintf (stderr, "undefined: sec: %s, name: %s\n",
|
|
|
|
|
sec->name, name);
|
|
|
|
|
#endif
|
|
|
|
|
relocation = 0;
|
|
|
|
|
}
|
|
|
|
|
else if (info->shared
|
|
|
|
|
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
|
|
|
|
|
relocation = 0;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (! ((*info->callbacks->undefined_symbol)
|
|
|
|
|
(info, h->root.root.string, input_bfd,
|
|
|
|
|
input_section, rel->r_offset, true)))
|
|
|
|
|
return false;
|
|
|
|
|
#if 0
|
|
|
|
|
fprintf (stderr, "unknown: name: %s\n", name);
|
|
|
|
|
#endif
|
|
|
|
|
relocation = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
r = cris_final_link_relocate (howto, input_bfd, input_section,
|
|
|
|
|
contents, rel, relocation);
|
|
|
|
|
|
|
|
|
|
if (r != bfd_reloc_ok)
|
|
|
|
|
{
|
|
|
|
|
const char * msg = (const char *) NULL;
|
|
|
|
|
|
|
|
|
|
switch (r)
|
|
|
|
|
{
|
|
|
|
|
case bfd_reloc_overflow:
|
|
|
|
|
r = info->callbacks->reloc_overflow
|
|
|
|
|
(info, name, howto->name, (bfd_vma) 0,
|
|
|
|
|
input_bfd, input_section, rel->r_offset);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case bfd_reloc_undefined:
|
|
|
|
|
r = info->callbacks->undefined_symbol
|
|
|
|
|
(info, name, input_bfd, input_section, rel->r_offset,
|
|
|
|
|
true);
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case bfd_reloc_outofrange:
|
|
|
|
|
msg = _("internal error: out of range error");
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case bfd_reloc_notsupported:
|
|
|
|
|
msg = _("internal error: unsupported relocation error");
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
case bfd_reloc_dangerous:
|
|
|
|
|
msg = _("internal error: dangerous relocation");
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
msg = _("internal error: unknown error");
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (msg)
|
|
|
|
|
r = info->callbacks->warning
|
|
|
|
|
(info, msg, name, input_bfd, input_section, rel->r_offset);
|
|
|
|
|
|
|
|
|
|
if (! r)
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Return the section that should be marked against GC for a given
|
|
|
|
|
relocation. */
|
|
|
|
|
|
|
|
|
|
static asection *
|
|
|
|
|
cris_elf_gc_mark_hook (abfd, info, rel, h, sym)
|
|
|
|
|
bfd * abfd;
|
|
|
|
|
struct bfd_link_info * info ATTRIBUTE_UNUSED;
|
|
|
|
|
Elf_Internal_Rela * rel;
|
|
|
|
|
struct elf_link_hash_entry * h;
|
|
|
|
|
Elf_Internal_Sym * sym;
|
|
|
|
|
{
|
|
|
|
|
if (h != NULL)
|
|
|
|
|
{
|
|
|
|
|
switch (ELF32_R_TYPE (rel->r_info))
|
|
|
|
|
{
|
|
|
|
|
case R_CRIS_GNU_VTINHERIT:
|
|
|
|
|
case R_CRIS_GNU_VTENTRY:
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
switch (h->root.type)
|
|
|
|
|
{
|
|
|
|
|
case bfd_link_hash_defined:
|
|
|
|
|
case bfd_link_hash_defweak:
|
|
|
|
|
return h->root.u.def.section;
|
|
|
|
|
|
|
|
|
|
case bfd_link_hash_common:
|
|
|
|
|
return h->root.u.c.p->section;
|
|
|
|
|
|
|
|
|
|
default:
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
if (!(elf_bad_symtab (abfd)
|
|
|
|
|
&& ELF_ST_BIND (sym->st_info) != STB_LOCAL)
|
|
|
|
|
&& ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
|
|
|
|
|
&& sym->st_shndx != SHN_COMMON))
|
|
|
|
|
{
|
|
|
|
|
return bfd_section_from_elf_index (abfd, sym->st_shndx);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Update the got entry reference counts for the section being removed. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
cris_elf_gc_sweep_hook (abfd, info, sec, relocs)
|
|
|
|
|
bfd * abfd ATTRIBUTE_UNUSED;
|
|
|
|
|
struct bfd_link_info * info ATTRIBUTE_UNUSED;
|
|
|
|
|
asection * sec ATTRIBUTE_UNUSED;
|
|
|
|
|
const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED;
|
|
|
|
|
{
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Look through the relocs for a section during the first phase.
|
|
|
|
|
Since we don't do .gots or .plts, we just need to consider the
|
|
|
|
|
virtual table relocs for gc. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
cris_elf_check_relocs (abfd, info, sec, relocs)
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
struct bfd_link_info *info;
|
|
|
|
|
asection *sec;
|
|
|
|
|
const Elf_Internal_Rela *relocs;
|
|
|
|
|
{
|
|
|
|
|
Elf_Internal_Shdr *symtab_hdr;
|
|
|
|
|
struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
|
|
|
|
|
const Elf_Internal_Rela *rel;
|
|
|
|
|
const Elf_Internal_Rela *rel_end;
|
|
|
|
|
|
|
|
|
|
if (info->relocateable)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
|
|
|
|
sym_hashes = elf_sym_hashes (abfd);
|
|
|
|
|
sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof(Elf32_External_Sym);
|
|
|
|
|
if (!elf_bad_symtab (abfd))
|
|
|
|
|
sym_hashes_end -= symtab_hdr->sh_info;
|
|
|
|
|
|
|
|
|
|
rel_end = relocs + sec->reloc_count;
|
|
|
|
|
for (rel = relocs; rel < rel_end; rel++)
|
|
|
|
|
{
|
|
|
|
|
struct elf_link_hash_entry *h;
|
|
|
|
|
unsigned long r_symndx;
|
|
|
|
|
|
|
|
|
|
r_symndx = ELF32_R_SYM (rel->r_info);
|
|
|
|
|
if (r_symndx < symtab_hdr->sh_info)
|
|
|
|
|
h = NULL;
|
|
|
|
|
else
|
|
|
|
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
|
|
|
|
|
|
|
|
|
switch (ELF32_R_TYPE (rel->r_info))
|
|
|
|
|
{
|
|
|
|
|
/* This relocation describes the C++ object vtable hierarchy.
|
|
|
|
|
Reconstruct it for later use during GC. */
|
|
|
|
|
case R_CRIS_GNU_VTINHERIT:
|
|
|
|
|
if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
|
|
|
|
return false;
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
|
|
/* This relocation describes which C++ vtable entries are actually
|
|
|
|
|
used. Record for later use during GC. */
|
|
|
|
|
case R_CRIS_GNU_VTENTRY:
|
|
|
|
|
if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
|
|
|
|
return false;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
Define two bfd_targets for absence and presence of leading
underscore on symbols. Make sure to only link same kind.
* elf32-cris.c (cris_elf_object_p,
cris_elf_final_write_processing, cris_elf_print_private_bfd_data,
cris_elf_merge_private_bfd_data): New.
(elf_backend_object_p, elf_backend_final_write_processing,
bfd_elf32_bfd_print_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data): Define.
<Target vector definition>: Include elf32-target.h twice with
different macro settings:
(TARGET_LITTLE_SYM): First as bfd_elf32_cris_vec, then as
bfd_elf32_us_cris_vec.
(TARGET_LITTLE_NAME): First as "elf32-cris", then "elf32-us-cris".
(elf_symbol_leading_char): First as 0, then '_'.
(INCLUDED_TARGET_FILE): Define for second include of elf32-target.h.
* config.bfd (cris-*-*): Add bfd_elf32_us_cris_vec to targ_selvecs.
* configure.in (bfd_elf32_cris_vec, cris_aout_vec): New vector.
* configure: Regenerate.
* targets.c: Declare bfd_elf32_us_cris_vec.
* po/bfd.pot: Regenerate.
2000-09-29 17:05:22 +00:00
|
|
|
|
|
|
|
|
|
/* Reject a file depending on underscores on symbols. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
cris_elf_object_p (abfd)
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
{
|
|
|
|
|
if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
|
|
|
|
|
return (bfd_get_symbol_leading_char (abfd) == '_');
|
|
|
|
|
else
|
|
|
|
|
return (bfd_get_symbol_leading_char (abfd) == 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Mark presence or absence of leading underscore. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
cris_elf_final_write_processing (abfd, linker)
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
boolean linker ATTRIBUTE_UNUSED;
|
|
|
|
|
{
|
|
|
|
|
if (bfd_get_symbol_leading_char (abfd) == '_')
|
|
|
|
|
elf_elfheader (abfd)->e_flags |= EF_CRIS_UNDERSCORE;
|
|
|
|
|
else
|
|
|
|
|
elf_elfheader (abfd)->e_flags &= ~EF_CRIS_UNDERSCORE;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Display the flags field. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
cris_elf_print_private_bfd_data (abfd, ptr)
|
|
|
|
|
bfd *abfd;
|
|
|
|
|
PTR ptr;
|
|
|
|
|
{
|
|
|
|
|
FILE *file = (FILE *) ptr;
|
|
|
|
|
|
|
|
|
|
BFD_ASSERT (abfd != NULL && ptr != NULL)
|
|
|
|
|
|
|
|
|
|
_bfd_elf_print_private_bfd_data (abfd, ptr);
|
|
|
|
|
|
|
|
|
|
fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
|
|
|
|
|
|
|
|
|
|
if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)
|
|
|
|
|
fprintf (file, _(" [symbols have a _ prefix]"));
|
|
|
|
|
|
|
|
|
|
fputc ('\n', file);
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Don't mix files with and without a leading underscore. */
|
|
|
|
|
|
|
|
|
|
static boolean
|
|
|
|
|
cris_elf_merge_private_bfd_data (ibfd, obfd)
|
|
|
|
|
bfd *ibfd;
|
|
|
|
|
bfd *obfd;
|
|
|
|
|
{
|
|
|
|
|
flagword old_flags, new_flags;
|
|
|
|
|
|
|
|
|
|
if (_bfd_generic_verify_endian_match (ibfd, obfd) == false)
|
|
|
|
|
return false;
|
|
|
|
|
|
|
|
|
|
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|
|
|
|
|
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
|
|
|
|
|
return true;
|
|
|
|
|
|
|
|
|
|
if (! elf_flags_init (obfd))
|
|
|
|
|
{
|
|
|
|
|
/* This happens when ld starts out with a 'blank' output file. */
|
|
|
|
|
elf_flags_init (obfd) = true;
|
|
|
|
|
|
|
|
|
|
/* Set flags according to current bfd_target. */
|
|
|
|
|
cris_elf_final_write_processing (obfd, false);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
old_flags = elf_elfheader (obfd)->e_flags;
|
|
|
|
|
new_flags = elf_elfheader (ibfd)->e_flags;
|
|
|
|
|
|
|
|
|
|
/* Is this good or bad? We'll follow with other excluding flags. */
|
|
|
|
|
if ((old_flags & EF_CRIS_UNDERSCORE) != (new_flags & EF_CRIS_UNDERSCORE))
|
|
|
|
|
{
|
|
|
|
|
(*_bfd_error_handler)
|
|
|
|
|
((new_flags & EF_CRIS_UNDERSCORE)
|
|
|
|
|
? _("%s: uses _-prefixed symbols, but writing file with non-prefixed symbols")
|
|
|
|
|
: _("%s: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
|
|
|
|
|
bfd_get_filename (ibfd));
|
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
|
|
|
return false;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return true;
|
|
|
|
|
}
|
2000-07-20 16:21:07 +00:00
|
|
|
|
|
|
|
|
|
#define ELF_ARCH bfd_arch_cris
|
|
|
|
|
#define ELF_MACHINE_CODE EM_CRIS
|
|
|
|
|
#define ELF_MAXPAGESIZE 0x2000
|
|
|
|
|
|
|
|
|
|
#define TARGET_LITTLE_SYM bfd_elf32_cris_vec
|
|
|
|
|
#define TARGET_LITTLE_NAME "elf32-cris"
|
Define two bfd_targets for absence and presence of leading
underscore on symbols. Make sure to only link same kind.
* elf32-cris.c (cris_elf_object_p,
cris_elf_final_write_processing, cris_elf_print_private_bfd_data,
cris_elf_merge_private_bfd_data): New.
(elf_backend_object_p, elf_backend_final_write_processing,
bfd_elf32_bfd_print_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data): Define.
<Target vector definition>: Include elf32-target.h twice with
different macro settings:
(TARGET_LITTLE_SYM): First as bfd_elf32_cris_vec, then as
bfd_elf32_us_cris_vec.
(TARGET_LITTLE_NAME): First as "elf32-cris", then "elf32-us-cris".
(elf_symbol_leading_char): First as 0, then '_'.
(INCLUDED_TARGET_FILE): Define for second include of elf32-target.h.
* config.bfd (cris-*-*): Add bfd_elf32_us_cris_vec to targ_selvecs.
* configure.in (bfd_elf32_cris_vec, cris_aout_vec): New vector.
* configure: Regenerate.
* targets.c: Declare bfd_elf32_us_cris_vec.
* po/bfd.pot: Regenerate.
2000-09-29 17:05:22 +00:00
|
|
|
|
#define elf_symbol_leading_char 0
|
2000-07-20 16:21:07 +00:00
|
|
|
|
|
|
|
|
|
#define elf_info_to_howto_rel NULL
|
|
|
|
|
#define elf_info_to_howto cris_info_to_howto_rela
|
|
|
|
|
#define elf_backend_relocate_section cris_elf_relocate_section
|
|
|
|
|
#define elf_backend_gc_mark_hook cris_elf_gc_mark_hook
|
|
|
|
|
#define elf_backend_gc_sweep_hook cris_elf_gc_sweep_hook
|
|
|
|
|
#define elf_backend_check_relocs cris_elf_check_relocs
|
|
|
|
|
|
|
|
|
|
#define elf_backend_can_gc_sections 1
|
|
|
|
|
|
Define two bfd_targets for absence and presence of leading
underscore on symbols. Make sure to only link same kind.
* elf32-cris.c (cris_elf_object_p,
cris_elf_final_write_processing, cris_elf_print_private_bfd_data,
cris_elf_merge_private_bfd_data): New.
(elf_backend_object_p, elf_backend_final_write_processing,
bfd_elf32_bfd_print_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data): Define.
<Target vector definition>: Include elf32-target.h twice with
different macro settings:
(TARGET_LITTLE_SYM): First as bfd_elf32_cris_vec, then as
bfd_elf32_us_cris_vec.
(TARGET_LITTLE_NAME): First as "elf32-cris", then "elf32-us-cris".
(elf_symbol_leading_char): First as 0, then '_'.
(INCLUDED_TARGET_FILE): Define for second include of elf32-target.h.
* config.bfd (cris-*-*): Add bfd_elf32_us_cris_vec to targ_selvecs.
* configure.in (bfd_elf32_cris_vec, cris_aout_vec): New vector.
* configure: Regenerate.
* targets.c: Declare bfd_elf32_us_cris_vec.
* po/bfd.pot: Regenerate.
2000-09-29 17:05:22 +00:00
|
|
|
|
#define elf_backend_object_p cris_elf_object_p
|
|
|
|
|
#define elf_backend_final_write_processing \
|
|
|
|
|
cris_elf_final_write_processing
|
|
|
|
|
#define bfd_elf32_bfd_print_private_bfd_data \
|
|
|
|
|
cris_elf_print_private_bfd_data
|
|
|
|
|
#define bfd_elf32_bfd_merge_private_bfd_data \
|
|
|
|
|
cris_elf_merge_private_bfd_data
|
|
|
|
|
|
2000-07-20 16:21:07 +00:00
|
|
|
|
#define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup
|
|
|
|
|
|
|
|
|
|
/* Later, we my want to optimize RELA entries into REL entries for dynamic
|
|
|
|
|
linking and libraries (if it's a win of any significance). Until then,
|
|
|
|
|
take the easy route. */
|
|
|
|
|
#define elf_backend_may_use_rel_p 0
|
|
|
|
|
#define elf_backend_may_use_rela_p 1
|
|
|
|
|
|
|
|
|
|
#include "elf32-target.h"
|
Define two bfd_targets for absence and presence of leading
underscore on symbols. Make sure to only link same kind.
* elf32-cris.c (cris_elf_object_p,
cris_elf_final_write_processing, cris_elf_print_private_bfd_data,
cris_elf_merge_private_bfd_data): New.
(elf_backend_object_p, elf_backend_final_write_processing,
bfd_elf32_bfd_print_private_bfd_data,
bfd_elf32_bfd_merge_private_bfd_data): Define.
<Target vector definition>: Include elf32-target.h twice with
different macro settings:
(TARGET_LITTLE_SYM): First as bfd_elf32_cris_vec, then as
bfd_elf32_us_cris_vec.
(TARGET_LITTLE_NAME): First as "elf32-cris", then "elf32-us-cris".
(elf_symbol_leading_char): First as 0, then '_'.
(INCLUDED_TARGET_FILE): Define for second include of elf32-target.h.
* config.bfd (cris-*-*): Add bfd_elf32_us_cris_vec to targ_selvecs.
* configure.in (bfd_elf32_cris_vec, cris_aout_vec): New vector.
* configure: Regenerate.
* targets.c: Declare bfd_elf32_us_cris_vec.
* po/bfd.pot: Regenerate.
2000-09-29 17:05:22 +00:00
|
|
|
|
|
|
|
|
|
#define INCLUDED_TARGET_FILE
|
|
|
|
|
|
|
|
|
|
#undef TARGET_LITTLE_SYM
|
|
|
|
|
#undef TARGET_LITTLE_NAME
|
|
|
|
|
#undef elf_symbol_leading_char
|
|
|
|
|
|
|
|
|
|
#define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
|
|
|
|
|
#define TARGET_LITTLE_NAME "elf32-us-cris"
|
|
|
|
|
#define elf_symbol_leading_char '_'
|
|
|
|
|
|
|
|
|
|
#include "elf32-target.h"
|