2173 lines
64 KiB
C
2173 lines
64 KiB
C
/* MIPS-specific support for 64-bit ELF
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Copyright 1996 Free Software Foundation, Inc.
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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 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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/* This file supports the 64-bit MIPS ELF ABI.
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The MIPS 64-bit ELF ABI uses an unusual reloc format. This file
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overrides the usual ELF reloc handling, and handles reading and
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writing the relocations here.
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The MIPS 64-bit ELF ABI also uses an unusual archive map format. */
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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 "aout/ar.h"
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#include "bfdlink.h"
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#include "genlink.h"
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#include "elf-bfd.h"
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#include "elf/mips.h"
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/* Get the ECOFF swapping routines. The 64-bit ABI is not supposed to
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use ECOFF. However, we support it anyhow for an easier changeover. */
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#include "coff/sym.h"
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#include "coff/symconst.h"
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#include "coff/internal.h"
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#include "coff/ecoff.h"
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/* The 64 bit versions of the mdebug data structures are in alpha.h. */
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#include "coff/alpha.h"
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#define ECOFF_64
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#include "ecoffswap.h"
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static void mips_elf64_swap_reloc_in
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PARAMS ((bfd *, const Elf64_Mips_External_Rel *,
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Elf64_Mips_Internal_Rel *));
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static void mips_elf64_swap_reloca_in
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PARAMS ((bfd *, const Elf64_Mips_External_Rela *,
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Elf64_Mips_Internal_Rela *));
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#if 0
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static void mips_elf64_swap_reloc_out
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PARAMS ((bfd *, const Elf64_Mips_Internal_Rel *,
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Elf64_Mips_External_Rel *));
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#endif
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static void mips_elf64_swap_reloca_out
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PARAMS ((bfd *, const Elf64_Mips_Internal_Rela *,
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Elf64_Mips_External_Rela *));
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static reloc_howto_type *mips_elf64_reloc_type_lookup
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PARAMS ((bfd *, bfd_reloc_code_real_type));
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static long mips_elf64_get_reloc_upper_bound PARAMS ((bfd *, asection *));
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static boolean mips_elf64_slurp_one_reloc_table
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PARAMS ((bfd *, asection *, asymbol **, const Elf_Internal_Shdr *));
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static boolean mips_elf64_slurp_reloc_table
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PARAMS ((bfd *, asection *, asymbol **, boolean));
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static void mips_elf64_write_relocs PARAMS ((bfd *, asection *, PTR));
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static boolean mips_elf64_section_from_shdr
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PARAMS ((bfd *, Elf_Internal_Shdr *, char *));
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static boolean mips_elf64_section_processing
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PARAMS ((bfd *, Elf_Internal_Shdr *));
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static boolean mips_elf64_slurp_armap PARAMS ((bfd *));
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static boolean mips_elf64_write_armap
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PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int));
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/* The relocation types. */
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enum mips_elf64_reloc_type
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{
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R_MIPS_NONE = 0,
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R_MIPS_16 = 1,
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R_MIPS_32 = 2,
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R_MIPS_ADD = 2,
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R_MIPS_REL32 = 3,
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R_MIPS_REL = 3,
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R_MIPS_26 = 4,
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R_MIPS_HI16 = 5,
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R_MIPS_LO16 = 6,
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R_MIPS_GPREL16 = 7,
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R_MIPS_GPREL = 7,
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R_MIPS_LITERAL = 8,
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R_MIPS_GOT16 = 9,
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R_MIPS_GOT = 9,
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R_MIPS_PC16 = 10,
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R_MIPS_CALL16 = 11,
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R_MIPS_CALL = 11,
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R_MIPS_GPREL32 = 12,
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R_MIPS_SHIFT5 = 16,
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R_MIPS_SHIFT6 = 17,
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R_MIPS_64 = 18,
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R_MIPS_GOT_DISP = 19,
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R_MIPS_GOT_PAGE = 20,
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R_MIPS_GOT_OFST = 21,
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R_MIPS_GOT_HI16 = 22,
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R_MIPS_GOT_LO16 = 23,
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R_MIPS_SUB = 24,
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R_MIPS_INSERT_A = 25,
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R_MIPS_INSERT_B = 26,
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R_MIPS_DELETE = 27,
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R_MIPS_HIGHER = 28,
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R_MIPS_HIGHEST = 29,
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R_MIPS_CALL_HI16 = 30,
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R_MIPS_CALL_LO16 = 31,
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R_MIPS_SCN_DISP = 32,
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R_MIPS_REL16 = 33,
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R_MIPS_ADD_IMMEDIATE = 34,
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R_MIPS_PJUMP = 35,
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R_MIPS_RELGOT = 36
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};
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/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
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from smaller values. Start with zero, widen, *then* decrement. */
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#define MINUS_ONE (((bfd_vma)0) - 1)
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/* The relocation table used for SHT_REL sections. */
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static reloc_howto_type mips_elf64_howto_table_rel[] =
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{
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/* No relocation. */
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HOWTO (R_MIPS_NONE, /* type */
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0, /* rightshift */
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0, /* 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_generic_reloc, /* special_function */
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"R_MIPS_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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/* 16 bit relocation. */
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HOWTO (R_MIPS_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_MIPS_16", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* 32 bit relocation. */
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HOWTO (R_MIPS_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_MIPS_32", /* name */
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true, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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false), /* pcrel_offset */
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/* 32 bit symbol relative relocation. */
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HOWTO (R_MIPS_REL32, /* 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_MIPS_REL32", /* name */
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true, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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false), /* pcrel_offset */
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/* 26 bit branch address. */
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HOWTO (R_MIPS_26, /* type */
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2, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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26, /* 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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/* This needs complex overflow
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detection, because the upper four
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bits must match the PC. */
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bfd_elf_generic_reloc, /* special_function */
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"R_MIPS_26", /* name */
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true, /* partial_inplace */
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0x3ffffff, /* src_mask */
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0x3ffffff, /* dst_mask */
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false), /* pcrel_offset */
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/* High 16 bits of symbol value. */
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HOWTO (R_MIPS_HI16, /* type */
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0, /* rightshift */
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2, /* 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_dont, /* complain_on_overflow */
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_bfd_mips_elf_hi16_reloc, /* special_function */
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"R_MIPS_HI16", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Low 16 bits of symbol value. */
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HOWTO (R_MIPS_LO16, /* type */
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0, /* rightshift */
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2, /* 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_dont, /* complain_on_overflow */
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_bfd_mips_elf_lo16_reloc, /* special_function */
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"R_MIPS_LO16", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* GP relative reference. */
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HOWTO (R_MIPS_GPREL16, /* type */
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0, /* rightshift */
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2, /* 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_signed, /* complain_on_overflow */
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_bfd_mips_elf_gprel16_reloc, /* special_function */
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"R_MIPS_GPREL16", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Reference to literal section. */
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HOWTO (R_MIPS_LITERAL, /* type */
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0, /* rightshift */
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2, /* 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_signed, /* complain_on_overflow */
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_bfd_mips_elf_gprel16_reloc, /* special_function */
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"R_MIPS_LITERAL", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* Reference to global offset table. */
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HOWTO (R_MIPS_GOT16, /* type */
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0, /* rightshift */
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2, /* 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_signed, /* complain_on_overflow */
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_bfd_mips_elf_got16_reloc, /* special_function */
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"R_MIPS_GOT16", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* 16 bit PC relative reference. */
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HOWTO (R_MIPS_PC16, /* type */
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0, /* rightshift */
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2, /* 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_signed, /* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_MIPS_PC16", /* name */
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true, /* partial_inplace */
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0xffff, /* src_mask */
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0xffff, /* dst_mask */
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false), /* pcrel_offset */
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/* 16 bit call through global offset table. */
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/* FIXME: This is not handled correctly. */
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HOWTO (R_MIPS_CALL16, /* type */
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0, /* rightshift */
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2, /* 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_signed, /* complain_on_overflow */
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||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_CALL16", /* name */
|
||
false, /* partial_inplace */
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||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* 32 bit GP relative reference. */
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||
HOWTO (R_MIPS_GPREL32, /* 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 */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
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||
_bfd_mips_elf_gprel32_reloc, /* special_function */
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"R_MIPS_GPREL32", /* name */
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||
true, /* partial_inplace */
|
||
0xffffffff, /* src_mask */
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||
0xffffffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
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{ 13 },
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{ 14 },
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{ 15 },
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/* A 5 bit shift field. */
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HOWTO (R_MIPS_SHIFT5, /* type */
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||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
5, /* bitsize */
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||
false, /* pc_relative */
|
||
6, /* bitpos */
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||
complain_overflow_bitfield, /* complain_on_overflow */
|
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bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_SHIFT5", /* name */
|
||
true, /* partial_inplace */
|
||
0x000007c0, /* src_mask */
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||
0x000007c0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* A 6 bit shift field. */
|
||
/* FIXME: This is not handled correctly; a special function is
|
||
needed to put the most significant bit in the right place. */
|
||
HOWTO (R_MIPS_SHIFT6, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
6, /* bitsize */
|
||
false, /* pc_relative */
|
||
6, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_SHIFT6", /* name */
|
||
true, /* partial_inplace */
|
||
0x000007c4, /* src_mask */
|
||
0x000007c4, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* 64 bit relocation. */
|
||
HOWTO (R_MIPS_64, /* type */
|
||
0, /* rightshift */
|
||
4, /* size (0 = byte, 1 = short, 2 = long) */
|
||
64, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_64", /* name */
|
||
true, /* partial_inplace */
|
||
MINUS_ONE, /* src_mask */
|
||
MINUS_ONE, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Displacement in the global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_GOT_DISP, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_GOT_DISP", /* name */
|
||
true, /* partial_inplace */
|
||
0x0000ffff, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Displacement to page pointer in the global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_GOT_PAGE, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_GOT_PAGE", /* name */
|
||
true, /* partial_inplace */
|
||
0x0000ffff, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Offset from page pointer in the global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_GOT_OFST, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_GOT_OFST", /* name */
|
||
true, /* partial_inplace */
|
||
0x0000ffff, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* High 16 bits of displacement in global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_GOT_HI16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_GOT_HI16", /* name */
|
||
true, /* partial_inplace */
|
||
0x0000ffff, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Low 16 bits of displacement in global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_GOT_LO16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_GOT_LO16", /* name */
|
||
true, /* partial_inplace */
|
||
0x0000ffff, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* 64 bit substraction. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_SUB, /* type */
|
||
0, /* rightshift */
|
||
4, /* size (0 = byte, 1 = short, 2 = long) */
|
||
64, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_SUB", /* name */
|
||
true, /* partial_inplace */
|
||
MINUS_ONE, /* src_mask */
|
||
MINUS_ONE, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Insert the addend as an instruction. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_INSERT_A, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_INSERT_A", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Insert the addend as an instruction, and change all relocations
|
||
to refer to the old instruction at the address. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_INSERT_B, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_INSERT_B", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Delete a 32 bit instruction. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_DELETE, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_DELETE", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Get the higher value of a 64 bit addend. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_HIGHER, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_HIGHER", /* name */
|
||
true, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Get the highest value of a 64 bit addend. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_HIGHEST, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_HIGHEST", /* name */
|
||
true, /* partial_inplace */
|
||
0xffff, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* High 16 bits of displacement in global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_CALL_HI16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_CALL_HI16", /* name */
|
||
true, /* partial_inplace */
|
||
0x0000ffff, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Low 16 bits of displacement in global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_CALL_LO16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_CALL_LO16", /* name */
|
||
true, /* partial_inplace */
|
||
0x0000ffff, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* I'm not sure what the remaining relocs are, but they are defined
|
||
on Irix 6. */
|
||
|
||
HOWTO (R_MIPS_SCN_DISP, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_SCN_DISP", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
HOWTO (R_MIPS_REL16, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_REL16", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
HOWTO (R_MIPS_ADD_IMMEDIATE, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_ADD_IMMEDIATE", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
HOWTO (R_MIPS_PJUMP, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_PJUMP", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
HOWTO (R_MIPS_RELGOT, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_RELGOT", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false) /* pcrel_offset */
|
||
};
|
||
|
||
/* The relocation table used for SHT_RELA sections. */
|
||
|
||
static reloc_howto_type mips_elf64_howto_table_rela[] =
|
||
{
|
||
/* No relocation. */
|
||
HOWTO (R_MIPS_NONE, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_NONE", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* 16 bit relocation. */
|
||
HOWTO (R_MIPS_16, /* type */
|
||
0, /* rightshift */
|
||
1, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_16", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* 32 bit relocation. */
|
||
HOWTO (R_MIPS_32, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_32", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* 32 bit symbol relative relocation. */
|
||
HOWTO (R_MIPS_REL32, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_REL32", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* 26 bit branch address. */
|
||
HOWTO (R_MIPS_26, /* type */
|
||
2, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
26, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
/* This needs complex overflow
|
||
detection, because the upper four
|
||
bits must match the PC. */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_26", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x3ffffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* High 16 bits of symbol value. */
|
||
HOWTO (R_MIPS_HI16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_HI16", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Low 16 bits of symbol value. */
|
||
HOWTO (R_MIPS_LO16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_LO16", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* GP relative reference. */
|
||
HOWTO (R_MIPS_GPREL16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
_bfd_mips_elf_gprel16_reloc, /* special_function */
|
||
"R_MIPS_GPREL16", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Reference to literal section. */
|
||
HOWTO (R_MIPS_LITERAL, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
_bfd_mips_elf_gprel16_reloc, /* special_function */
|
||
"R_MIPS_LITERAL", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Reference to global offset table. */
|
||
/* FIXME: This is not handled correctly. */
|
||
HOWTO (R_MIPS_GOT16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_GOT16", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* 16 bit PC relative reference. */
|
||
HOWTO (R_MIPS_PC16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
true, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_PC16", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* 16 bit call through global offset table. */
|
||
/* FIXME: This is not handled correctly. */
|
||
HOWTO (R_MIPS_CALL16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_signed, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_CALL16", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* 32 bit GP relative reference. */
|
||
HOWTO (R_MIPS_GPREL32, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
32, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
_bfd_mips_elf_gprel32_reloc, /* special_function */
|
||
"R_MIPS_GPREL32", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffffffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
{ 13 },
|
||
{ 14 },
|
||
{ 15 },
|
||
|
||
/* A 5 bit shift field. */
|
||
HOWTO (R_MIPS_SHIFT5, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
5, /* bitsize */
|
||
false, /* pc_relative */
|
||
6, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_SHIFT5", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x000007c0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* A 6 bit shift field. */
|
||
/* FIXME: This is not handled correctly; a special function is
|
||
needed to put the most significant bit in the right place. */
|
||
HOWTO (R_MIPS_SHIFT6, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
6, /* bitsize */
|
||
false, /* pc_relative */
|
||
6, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_SHIFT6", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x000007c4, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* 64 bit relocation. */
|
||
HOWTO (R_MIPS_64, /* type */
|
||
0, /* rightshift */
|
||
4, /* size (0 = byte, 1 = short, 2 = long) */
|
||
64, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_64", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
MINUS_ONE, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Displacement in the global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_GOT_DISP, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_GOT_DISP", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Displacement to page pointer in the global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_GOT_PAGE, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_GOT_PAGE", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Offset from page pointer in the global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_GOT_OFST, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_GOT_OFST", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* High 16 bits of displacement in global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_GOT_HI16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_GOT_HI16", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Low 16 bits of displacement in global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_GOT_LO16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_GOT_LO16", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* 64 bit substraction. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_SUB, /* type */
|
||
0, /* rightshift */
|
||
4, /* size (0 = byte, 1 = short, 2 = long) */
|
||
64, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_bitfield, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_SUB", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
MINUS_ONE, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Insert the addend as an instruction. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_INSERT_A, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_INSERT_A", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Insert the addend as an instruction, and change all relocations
|
||
to refer to the old instruction at the address. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_INSERT_B, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_INSERT_B", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Delete a 32 bit instruction. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_DELETE, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_DELETE", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Get the higher value of a 64 bit addend. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_HIGHER, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_HIGHER", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Get the highest value of a 64 bit addend. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_HIGHEST, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_HIGHEST", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0xffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* High 16 bits of displacement in global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_CALL_HI16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_CALL_HI16", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* Low 16 bits of displacement in global offset table. */
|
||
/* FIXME: Not handled correctly. */
|
||
HOWTO (R_MIPS_CALL_LO16, /* type */
|
||
0, /* rightshift */
|
||
2, /* size (0 = byte, 1 = short, 2 = long) */
|
||
16, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_CALL_LO16", /* name */
|
||
true, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0x0000ffff, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
/* I'm not sure what the remaining relocs are, but they are defined
|
||
on Irix 6. */
|
||
|
||
HOWTO (R_MIPS_SCN_DISP, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_SCN_DISP", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
HOWTO (R_MIPS_REL16, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_REL16", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
HOWTO (R_MIPS_ADD_IMMEDIATE, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_ADD_IMMEDIATE", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
HOWTO (R_MIPS_PJUMP, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_PJUMP", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false), /* pcrel_offset */
|
||
|
||
HOWTO (R_MIPS_RELGOT, /* type */
|
||
0, /* rightshift */
|
||
0, /* size (0 = byte, 1 = short, 2 = long) */
|
||
0, /* bitsize */
|
||
false, /* pc_relative */
|
||
0, /* bitpos */
|
||
complain_overflow_dont, /* complain_on_overflow */
|
||
bfd_elf_generic_reloc, /* special_function */
|
||
"R_MIPS_RELGOT", /* name */
|
||
false, /* partial_inplace */
|
||
0, /* src_mask */
|
||
0, /* dst_mask */
|
||
false) /* pcrel_offset */
|
||
};
|
||
|
||
/* Swap in a MIPS 64-bit Rel reloc. */
|
||
|
||
static void
|
||
mips_elf64_swap_reloc_in (abfd, src, dst)
|
||
bfd *abfd;
|
||
const Elf64_Mips_External_Rel *src;
|
||
Elf64_Mips_Internal_Rel *dst;
|
||
{
|
||
dst->r_offset = bfd_h_get_64 (abfd, (bfd_byte *) src->r_offset);
|
||
dst->r_sym = bfd_h_get_32 (abfd, (bfd_byte *) src->r_sym);
|
||
dst->r_ssym = bfd_h_get_8 (abfd, (bfd_byte *) src->r_ssym);
|
||
dst->r_type3 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type3);
|
||
dst->r_type2 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type2);
|
||
dst->r_type = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type);
|
||
}
|
||
|
||
/* Swap in a MIPS 64-bit Rela reloc. */
|
||
|
||
static void
|
||
mips_elf64_swap_reloca_in (abfd, src, dst)
|
||
bfd *abfd;
|
||
const Elf64_Mips_External_Rela *src;
|
||
Elf64_Mips_Internal_Rela *dst;
|
||
{
|
||
dst->r_offset = bfd_h_get_64 (abfd, (bfd_byte *) src->r_offset);
|
||
dst->r_sym = bfd_h_get_32 (abfd, (bfd_byte *) src->r_sym);
|
||
dst->r_ssym = bfd_h_get_8 (abfd, (bfd_byte *) src->r_ssym);
|
||
dst->r_type3 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type3);
|
||
dst->r_type2 = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type2);
|
||
dst->r_type = bfd_h_get_8 (abfd, (bfd_byte *) src->r_type);
|
||
dst->r_addend = bfd_h_get_64 (abfd, (bfd_byte *) src->r_addend);
|
||
}
|
||
|
||
#if 0
|
||
|
||
/* This is not currently used. */
|
||
|
||
/* Swap out a MIPS 64-bit Rel reloc. */
|
||
|
||
static void
|
||
mips_elf64_swap_reloc_out (abfd, src, dst)
|
||
bfd *abfd;
|
||
const Elf64_Mips_Internal_Rel *src;
|
||
Elf64_Mips_External_Rel *dst;
|
||
{
|
||
bfd_h_put_64 (abfd, src->r_offset, (bfd_byte *) dst->r_offset);
|
||
bfd_h_put_32 (abfd, src->r_sym, (bfd_byte *) dst->r_sym);
|
||
bfd_h_put_8 (abfd, src->r_ssym, (bfd_byte *) dst->r_ssym);
|
||
bfd_h_put_8 (abfd, src->r_type3, (bfd_byte *) dst->r_type3);
|
||
bfd_h_put_8 (abfd, src->r_type2, (bfd_byte *) dst->r_type2);
|
||
bfd_h_put_8 (abfd, src->r_type, (bfd_byte *) dst->r_type);
|
||
}
|
||
|
||
#endif /* 0 */
|
||
|
||
/* Swap out a MIPS 64-bit Rela reloc. */
|
||
|
||
static void
|
||
mips_elf64_swap_reloca_out (abfd, src, dst)
|
||
bfd *abfd;
|
||
const Elf64_Mips_Internal_Rela *src;
|
||
Elf64_Mips_External_Rela *dst;
|
||
{
|
||
bfd_h_put_64 (abfd, src->r_offset, (bfd_byte *) dst->r_offset);
|
||
bfd_h_put_32 (abfd, src->r_sym, (bfd_byte *) dst->r_sym);
|
||
bfd_h_put_8 (abfd, src->r_ssym, (bfd_byte *) dst->r_ssym);
|
||
bfd_h_put_8 (abfd, src->r_type3, (bfd_byte *) dst->r_type3);
|
||
bfd_h_put_8 (abfd, src->r_type2, (bfd_byte *) dst->r_type2);
|
||
bfd_h_put_8 (abfd, src->r_type, (bfd_byte *) dst->r_type);
|
||
bfd_h_put_64 (abfd, src->r_offset, (bfd_byte *) dst->r_offset);
|
||
}
|
||
|
||
/* A mapping from BFD reloc types to MIPS ELF reloc types. */
|
||
|
||
struct elf_reloc_map
|
||
{
|
||
bfd_reloc_code_real_type bfd_reloc_val;
|
||
enum mips_elf64_reloc_type elf_reloc_val;
|
||
};
|
||
|
||
static CONST struct elf_reloc_map mips_reloc_map[] =
|
||
{
|
||
{ BFD_RELOC_NONE, R_MIPS_NONE, },
|
||
{ BFD_RELOC_16, R_MIPS_16 },
|
||
{ BFD_RELOC_32, R_MIPS_32 },
|
||
{ BFD_RELOC_64, R_MIPS_64 },
|
||
{ BFD_RELOC_CTOR, R_MIPS_64 },
|
||
{ BFD_RELOC_32_PCREL, R_MIPS_REL32 },
|
||
{ BFD_RELOC_MIPS_JMP, R_MIPS_26 },
|
||
{ BFD_RELOC_HI16_S, R_MIPS_HI16 },
|
||
{ BFD_RELOC_LO16, R_MIPS_LO16 },
|
||
{ BFD_RELOC_MIPS_GPREL, R_MIPS_GPREL16 },
|
||
{ BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
|
||
{ BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
|
||
{ BFD_RELOC_16_PCREL, R_MIPS_PC16 },
|
||
{ BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
|
||
{ BFD_RELOC_MIPS_GPREL32, R_MIPS_GPREL32 },
|
||
{ BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
|
||
{ BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
|
||
{ BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
|
||
{ BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 }
|
||
};
|
||
|
||
/* Given a BFD reloc type, return a howto structure. */
|
||
|
||
static reloc_howto_type *
|
||
mips_elf64_reloc_type_lookup (abfd, code)
|
||
bfd *abfd;
|
||
bfd_reloc_code_real_type code;
|
||
{
|
||
unsigned int i;
|
||
|
||
for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map); i++)
|
||
{
|
||
if (mips_reloc_map[i].bfd_reloc_val == code)
|
||
{
|
||
int v;
|
||
|
||
v = (int) mips_reloc_map[i].elf_reloc_val;
|
||
return &mips_elf64_howto_table_rel[v];
|
||
}
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/* Since each entry in an SHT_REL or SHT_RELA section can represent up
|
||
to three relocs, we must tell the user to allocate more space. */
|
||
|
||
static long
|
||
mips_elf64_get_reloc_upper_bound (abfd, sec)
|
||
bfd *abfd;
|
||
asection *sec;
|
||
{
|
||
return (sec->reloc_count * 3 + 1) * sizeof (arelent *);
|
||
}
|
||
|
||
/* Read the relocations from one reloc section. */
|
||
|
||
static boolean
|
||
mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, rel_hdr)
|
||
bfd *abfd;
|
||
asection *asect;
|
||
asymbol **symbols;
|
||
const Elf_Internal_Shdr *rel_hdr;
|
||
{
|
||
PTR allocated = NULL;
|
||
bfd_byte *native_relocs;
|
||
arelent *relents;
|
||
arelent *relent;
|
||
unsigned int count;
|
||
unsigned int i;
|
||
int entsize;
|
||
reloc_howto_type *howto_table;
|
||
|
||
allocated = (PTR) bfd_malloc (rel_hdr->sh_size);
|
||
if (allocated == NULL)
|
||
goto error_return;
|
||
|
||
if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0
|
||
|| (bfd_read (allocated, 1, rel_hdr->sh_size, abfd) != rel_hdr->sh_size))
|
||
goto error_return;
|
||
|
||
native_relocs = (bfd_byte *) allocated;
|
||
|
||
relents = asect->relocation + asect->reloc_count;
|
||
|
||
entsize = rel_hdr->sh_entsize;
|
||
BFD_ASSERT (entsize == sizeof (Elf64_Mips_External_Rel)
|
||
|| entsize == sizeof (Elf64_Mips_External_Rela));
|
||
|
||
count = rel_hdr->sh_size / entsize;
|
||
|
||
if (entsize == sizeof (Elf64_Mips_External_Rel))
|
||
howto_table = mips_elf64_howto_table_rel;
|
||
else
|
||
howto_table = mips_elf64_howto_table_rela;
|
||
|
||
relent = relents;
|
||
for (i = 0; i < count; i++, native_relocs += entsize)
|
||
{
|
||
Elf64_Mips_Internal_Rela rela;
|
||
boolean used_sym, used_ssym;
|
||
int ir;
|
||
|
||
if (entsize == sizeof (Elf64_Mips_External_Rela))
|
||
mips_elf64_swap_reloca_in (abfd,
|
||
(Elf64_Mips_External_Rela *) native_relocs,
|
||
&rela);
|
||
else
|
||
{
|
||
Elf64_Mips_Internal_Rel rel;
|
||
|
||
mips_elf64_swap_reloc_in (abfd,
|
||
(Elf64_Mips_External_Rel *) native_relocs,
|
||
&rel);
|
||
rela.r_offset = rel.r_offset;
|
||
rela.r_sym = rel.r_sym;
|
||
rela.r_ssym = rel.r_ssym;
|
||
rela.r_type3 = rel.r_type3;
|
||
rela.r_type2 = rel.r_type2;
|
||
rela.r_type = rel.r_type;
|
||
rela.r_addend = 0;
|
||
}
|
||
|
||
/* Each entry represents up to three actual relocations. */
|
||
|
||
used_sym = false;
|
||
used_ssym = false;
|
||
for (ir = 0; ir < 3; ir++)
|
||
{
|
||
enum mips_elf64_reloc_type type;
|
||
|
||
switch (ir)
|
||
{
|
||
default:
|
||
abort ();
|
||
case 0:
|
||
type = (enum mips_elf64_reloc_type) rela.r_type;
|
||
break;
|
||
case 1:
|
||
type = (enum mips_elf64_reloc_type) rela.r_type2;
|
||
break;
|
||
case 2:
|
||
type = (enum mips_elf64_reloc_type) rela.r_type3;
|
||
break;
|
||
}
|
||
|
||
if (type == R_MIPS_NONE)
|
||
{
|
||
/* There are no more relocations in this entry. If this
|
||
is the first entry, we need to generate a dummy
|
||
relocation so that the generic linker knows that
|
||
there has been a break in the sequence of relocations
|
||
applying to a particular address. */
|
||
if (ir == 0)
|
||
{
|
||
relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
||
if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
|
||
relent->address = rela.r_offset;
|
||
else
|
||
relent->address = rela.r_offset - asect->vma;
|
||
relent->addend = 0;
|
||
relent->howto = &howto_table[(int) R_MIPS_NONE];
|
||
++relent;
|
||
}
|
||
break;
|
||
}
|
||
|
||
/* Some types require symbols, whereas some do not. */
|
||
switch (type)
|
||
{
|
||
case R_MIPS_NONE:
|
||
case R_MIPS_LITERAL:
|
||
case R_MIPS_INSERT_A:
|
||
case R_MIPS_INSERT_B:
|
||
case R_MIPS_DELETE:
|
||
relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
||
break;
|
||
|
||
default:
|
||
if (! used_sym)
|
||
{
|
||
if (rela.r_sym == 0)
|
||
relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
||
else
|
||
{
|
||
asymbol **ps, *s;
|
||
|
||
ps = symbols + rela.r_sym - 1;
|
||
s = *ps;
|
||
if ((s->flags & BSF_SECTION_SYM) == 0)
|
||
relent->sym_ptr_ptr = ps;
|
||
else
|
||
relent->sym_ptr_ptr = s->section->symbol_ptr_ptr;
|
||
}
|
||
|
||
used_sym = true;
|
||
}
|
||
else if (! used_ssym)
|
||
{
|
||
switch (rela.r_ssym)
|
||
{
|
||
case RSS_UNDEF:
|
||
relent->sym_ptr_ptr =
|
||
bfd_abs_section_ptr->symbol_ptr_ptr;
|
||
break;
|
||
|
||
case RSS_GP:
|
||
case RSS_GP0:
|
||
case RSS_LOC:
|
||
/* FIXME: I think these need to be handled using
|
||
special howto structures. */
|
||
BFD_ASSERT (0);
|
||
break;
|
||
|
||
default:
|
||
BFD_ASSERT (0);
|
||
break;
|
||
}
|
||
|
||
used_ssym = true;
|
||
}
|
||
else
|
||
relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
|
||
|
||
break;
|
||
}
|
||
|
||
/* The address of an ELF reloc is section relative for an
|
||
object file, and absolute for an executable file or
|
||
shared library. The address of a BFD reloc is always
|
||
section relative. */
|
||
if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
|
||
relent->address = rela.r_offset;
|
||
else
|
||
relent->address = rela.r_offset - asect->vma;
|
||
|
||
relent->addend = rela.r_addend;
|
||
|
||
relent->howto = &howto_table[(int) type];
|
||
|
||
++relent;
|
||
}
|
||
}
|
||
|
||
asect->reloc_count += relent - relents;
|
||
|
||
if (allocated != NULL)
|
||
free (allocated);
|
||
|
||
return true;
|
||
|
||
error_return:
|
||
if (allocated != NULL)
|
||
free (allocated);
|
||
return false;
|
||
}
|
||
|
||
/* Read the relocations. On Irix 6, there can be two reloc sections
|
||
associated with a single data section. */
|
||
|
||
static boolean
|
||
mips_elf64_slurp_reloc_table (abfd, asect, symbols, dynamic)
|
||
bfd *abfd;
|
||
asection *asect;
|
||
asymbol **symbols;
|
||
boolean dynamic;
|
||
{
|
||
struct bfd_elf_section_data * const d = elf_section_data (asect);
|
||
|
||
if (dynamic)
|
||
{
|
||
bfd_set_error (bfd_error_invalid_operation);
|
||
return false;
|
||
}
|
||
|
||
if (asect->relocation != NULL
|
||
|| (asect->flags & SEC_RELOC) == 0
|
||
|| asect->reloc_count == 0)
|
||
return true;
|
||
|
||
/* Allocate space for 3 arelent structures for each Rel structure. */
|
||
asect->relocation = ((arelent *)
|
||
bfd_alloc (abfd,
|
||
asect->reloc_count * 3 * sizeof (arelent)));
|
||
if (asect->relocation == NULL)
|
||
return false;
|
||
|
||
/* The slurp_one_reloc_table routine increments reloc_count. */
|
||
asect->reloc_count = 0;
|
||
|
||
if (! mips_elf64_slurp_one_reloc_table (abfd, asect, symbols, &d->rel_hdr))
|
||
return false;
|
||
if (d->rel_hdr2 != NULL)
|
||
{
|
||
if (! mips_elf64_slurp_one_reloc_table (abfd, asect, symbols,
|
||
d->rel_hdr2))
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Write out the relocations. */
|
||
|
||
static void
|
||
mips_elf64_write_relocs (abfd, sec, data)
|
||
bfd *abfd;
|
||
asection *sec;
|
||
PTR data;
|
||
{
|
||
boolean *failedp = (boolean *) data;
|
||
unsigned int count;
|
||
Elf_Internal_Shdr *rela_hdr;
|
||
Elf64_Mips_External_Rela *ext_rela;
|
||
unsigned int idx;
|
||
asymbol *last_sym = 0;
|
||
int last_sym_idx = 0;
|
||
|
||
/* If we have already failed, don't do anything. */
|
||
if (*failedp)
|
||
return;
|
||
|
||
if ((sec->flags & SEC_RELOC) == 0)
|
||
return;
|
||
|
||
/* The linker backend writes the relocs out itself, and sets the
|
||
reloc_count field to zero to inhibit writing them here. Also,
|
||
sometimes the SEC_RELOC flag gets set even when there aren't any
|
||
relocs. */
|
||
if (sec->reloc_count == 0)
|
||
return;
|
||
|
||
/* We can combine up to three relocs that refer to the same address
|
||
if the latter relocs have no associated symbol. */
|
||
count = 0;
|
||
for (idx = 0; idx < sec->reloc_count; idx++)
|
||
{
|
||
bfd_vma addr;
|
||
unsigned int i;
|
||
|
||
++count;
|
||
|
||
addr = sec->orelocation[idx]->address;
|
||
for (i = 0; i < 2; i++)
|
||
{
|
||
arelent *r;
|
||
|
||
if (idx + 1 >= sec->reloc_count)
|
||
break;
|
||
r = sec->orelocation[idx + 1];
|
||
if (r->address != addr
|
||
|| ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
|
||
|| (*r->sym_ptr_ptr)->value != 0)
|
||
break;
|
||
|
||
/* We can merge the reloc at IDX + 1 with the reloc at IDX. */
|
||
|
||
++idx;
|
||
}
|
||
}
|
||
|
||
rela_hdr = &elf_section_data (sec)->rel_hdr;
|
||
|
||
rela_hdr->sh_size = rela_hdr->sh_entsize * count;
|
||
rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size);
|
||
if (rela_hdr->contents == NULL)
|
||
{
|
||
*failedp = true;
|
||
return;
|
||
}
|
||
|
||
ext_rela = (Elf64_Mips_External_Rela *) rela_hdr->contents;
|
||
for (idx = 0; idx < sec->reloc_count; idx++, ext_rela++)
|
||
{
|
||
arelent *ptr;
|
||
Elf64_Mips_Internal_Rela int_rela;
|
||
asymbol *sym;
|
||
int n;
|
||
unsigned int i;
|
||
|
||
ptr = sec->orelocation[idx];
|
||
|
||
/* The address of an ELF reloc is section relative for an object
|
||
file, and absolute for an executable file or shared library.
|
||
The address of a BFD reloc is always section relative. */
|
||
if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
|
||
int_rela.r_offset = ptr->address;
|
||
else
|
||
int_rela.r_offset = ptr->address + sec->vma;
|
||
|
||
sym = *ptr->sym_ptr_ptr;
|
||
if (sym == last_sym)
|
||
n = last_sym_idx;
|
||
else
|
||
{
|
||
last_sym = sym;
|
||
n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
|
||
if (n < 0)
|
||
{
|
||
*failedp = true;
|
||
return;
|
||
}
|
||
last_sym_idx = n;
|
||
}
|
||
|
||
int_rela.r_sym = n;
|
||
|
||
int_rela.r_addend = ptr->addend;
|
||
|
||
int_rela.r_ssym = RSS_UNDEF;
|
||
|
||
if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
|
||
&& ! _bfd_elf_validate_reloc (abfd, ptr))
|
||
{
|
||
*failedp = true;
|
||
return;
|
||
}
|
||
|
||
int_rela.r_type = ptr->howto->type;
|
||
int_rela.r_type2 = (int) R_MIPS_NONE;
|
||
int_rela.r_type3 = (int) R_MIPS_NONE;
|
||
|
||
for (i = 0; i < 2; i++)
|
||
{
|
||
arelent *r;
|
||
|
||
if (idx + 1 >= sec->reloc_count)
|
||
break;
|
||
r = sec->orelocation[idx + 1];
|
||
if (r->address != ptr->address
|
||
|| ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
|
||
|| (*r->sym_ptr_ptr)->value != 0)
|
||
break;
|
||
|
||
/* We can merge the reloc at IDX + 1 with the reloc at IDX. */
|
||
|
||
if (i == 0)
|
||
int_rela.r_type2 = r->howto->type;
|
||
else
|
||
int_rela.r_type3 = r->howto->type;
|
||
|
||
++idx;
|
||
}
|
||
|
||
mips_elf64_swap_reloca_out (abfd, &int_rela, ext_rela);
|
||
}
|
||
|
||
BFD_ASSERT (ext_rela - (Elf64_Mips_External_Rela *) rela_hdr->contents
|
||
== count);
|
||
}
|
||
|
||
/* Handle a 64-bit MIPS ELF specific section. */
|
||
|
||
static boolean
|
||
mips_elf64_section_from_shdr (abfd, hdr, name)
|
||
bfd *abfd;
|
||
Elf_Internal_Shdr *hdr;
|
||
char *name;
|
||
{
|
||
if (! _bfd_mips_elf_section_from_shdr (abfd, hdr, name))
|
||
return false;
|
||
|
||
/* For a SHT_MIPS_OPTIONS section, look for a ODK_REGINFO entry, and
|
||
set the gp value based on what we find. We may see both
|
||
SHT_MIPS_REGINFO and SHT_MIPS_OPTIONS/ODK_REGINFO; in that case,
|
||
they should agree. */
|
||
if (hdr->sh_type == SHT_MIPS_OPTIONS)
|
||
{
|
||
bfd_byte *contents, *l, *lend;
|
||
|
||
contents = (bfd_byte *) bfd_malloc (hdr->sh_size);
|
||
if (contents == NULL)
|
||
return false;
|
||
if (! bfd_get_section_contents (abfd, hdr->bfd_section, contents,
|
||
(file_ptr) 0, hdr->sh_size))
|
||
{
|
||
free (contents);
|
||
return false;
|
||
}
|
||
l = contents;
|
||
lend = contents + hdr->sh_size;
|
||
while (l + sizeof (Elf_External_Options) <= lend)
|
||
{
|
||
Elf_Internal_Options intopt;
|
||
|
||
bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l,
|
||
&intopt);
|
||
if (intopt.kind == ODK_REGINFO)
|
||
{
|
||
Elf64_Internal_RegInfo intreg;
|
||
|
||
bfd_mips_elf64_swap_reginfo_in
|
||
(abfd,
|
||
((Elf64_External_RegInfo *)
|
||
(l + sizeof (Elf_External_Options))),
|
||
&intreg);
|
||
elf_gp (abfd) = intreg.ri_gp_value;
|
||
}
|
||
l += intopt.size;
|
||
}
|
||
free (contents);
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/* Work over a section just before writing it out. We update the GP
|
||
value in the SHT_MIPS_OPTIONS section based on the value we are
|
||
using. */
|
||
|
||
static boolean
|
||
mips_elf64_section_processing (abfd, hdr)
|
||
bfd *abfd;
|
||
Elf_Internal_Shdr *hdr;
|
||
{
|
||
if (hdr->sh_type == SHT_MIPS_OPTIONS
|
||
&& hdr->bfd_section != NULL
|
||
&& elf_section_data (hdr->bfd_section) != NULL
|
||
&& elf_section_data (hdr->bfd_section)->tdata != NULL)
|
||
{
|
||
bfd_byte *contents, *l, *lend;
|
||
|
||
/* We stored the section contents in the elf_section_data tdata
|
||
field in the set_section_contents routine. We save the
|
||
section contents so that we don't have to read them again.
|
||
At this point we know that elf_gp is set, so we can look
|
||
through the section contents to see if there is an
|
||
ODK_REGINFO structure. */
|
||
|
||
contents = (bfd_byte *) elf_section_data (hdr->bfd_section)->tdata;
|
||
l = contents;
|
||
lend = contents + hdr->sh_size;
|
||
while (l + sizeof (Elf_External_Options) <= lend)
|
||
{
|
||
Elf_Internal_Options intopt;
|
||
|
||
bfd_mips_elf_swap_options_in (abfd, (Elf_External_Options *) l,
|
||
&intopt);
|
||
if (intopt.kind == ODK_REGINFO)
|
||
{
|
||
bfd_byte buf[8];
|
||
|
||
if (bfd_seek (abfd,
|
||
(hdr->sh_offset
|
||
+ (l - contents)
|
||
+ sizeof (Elf_External_Options)
|
||
+ (sizeof (Elf64_External_RegInfo) - 8)),
|
||
SEEK_SET) == -1)
|
||
return false;
|
||
bfd_h_put_64 (abfd, elf_gp (abfd), buf);
|
||
if (bfd_write (buf, 1, 8, abfd) != 8)
|
||
return false;
|
||
}
|
||
l += intopt.size;
|
||
}
|
||
}
|
||
|
||
return _bfd_mips_elf_section_processing (abfd, hdr);
|
||
}
|
||
|
||
/* Irix 6 defines a brand new archive map format, so that they can
|
||
have archives more than 4 GB in size. */
|
||
|
||
/* Read an Irix 6 armap. */
|
||
|
||
static boolean
|
||
mips_elf64_slurp_armap (abfd)
|
||
bfd *abfd;
|
||
{
|
||
struct artdata *ardata = bfd_ardata (abfd);
|
||
char nextname[17];
|
||
file_ptr arhdrpos;
|
||
bfd_size_type i, parsed_size, nsymz, stringsize, carsym_size, ptrsize;
|
||
struct areltdata *mapdata;
|
||
bfd_byte int_buf[8];
|
||
char *stringbase;
|
||
bfd_byte *raw_armap = NULL;
|
||
carsym *carsyms;
|
||
|
||
ardata->symdefs = NULL;
|
||
|
||
/* Get the name of the first element. */
|
||
arhdrpos = bfd_tell (abfd);
|
||
i = bfd_read ((PTR) nextname, 1, 16, abfd);
|
||
if (i == 0)
|
||
return true;
|
||
if (i != 16)
|
||
return false;
|
||
|
||
if (bfd_seek (abfd, (file_ptr) - 16, SEEK_CUR) != 0)
|
||
return false;
|
||
|
||
/* Archives with traditional armaps are still permitted. */
|
||
if (strncmp (nextname, "/ ", 16) == 0)
|
||
return bfd_slurp_armap (abfd);
|
||
|
||
if (strncmp (nextname, "/SYM64/ ", 16) != 0)
|
||
{
|
||
bfd_has_map (abfd) = false;
|
||
return true;
|
||
}
|
||
|
||
mapdata = (struct areltdata *) _bfd_read_ar_hdr (abfd);
|
||
if (mapdata == NULL)
|
||
return false;
|
||
parsed_size = mapdata->parsed_size;
|
||
bfd_release (abfd, (PTR) mapdata);
|
||
|
||
if (bfd_read (int_buf, 1, 8, abfd) != 8)
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_malformed_archive);
|
||
return false;
|
||
}
|
||
|
||
nsymz = bfd_getb64 (int_buf);
|
||
stringsize = parsed_size - 8 * nsymz - 8;
|
||
|
||
carsym_size = nsymz * sizeof (carsym);
|
||
ptrsize = 8 * nsymz;
|
||
|
||
ardata->symdefs = (carsym *) bfd_zalloc (abfd, carsym_size + stringsize + 1);
|
||
if (ardata->symdefs == NULL)
|
||
return false;
|
||
carsyms = ardata->symdefs;
|
||
stringbase = ((char *) ardata->symdefs) + carsym_size;
|
||
|
||
raw_armap = (bfd_byte *) bfd_alloc (abfd, ptrsize);
|
||
if (raw_armap == NULL)
|
||
goto error_return;
|
||
|
||
if (bfd_read (raw_armap, 1, ptrsize, abfd) != ptrsize
|
||
|| bfd_read (stringbase, 1, stringsize, abfd) != stringsize)
|
||
{
|
||
if (bfd_get_error () != bfd_error_system_call)
|
||
bfd_set_error (bfd_error_malformed_archive);
|
||
goto error_return;
|
||
}
|
||
|
||
for (i = 0; i < nsymz; i++)
|
||
{
|
||
carsyms->file_offset = bfd_getb64 (raw_armap + i * 8);
|
||
carsyms->name = stringbase;
|
||
stringbase += strlen (stringbase) + 1;
|
||
++carsyms;
|
||
}
|
||
*stringbase = '\0';
|
||
|
||
ardata->symdef_count = nsymz;
|
||
ardata->first_file_filepos = arhdrpos + sizeof (struct ar_hdr) + parsed_size;
|
||
|
||
bfd_has_map (abfd) = true;
|
||
bfd_release (abfd, raw_armap);
|
||
|
||
return true;
|
||
|
||
error_return:
|
||
if (raw_armap != NULL)
|
||
bfd_release (abfd, raw_armap);
|
||
if (ardata->symdefs != NULL)
|
||
bfd_release (abfd, ardata->symdefs);
|
||
return false;
|
||
}
|
||
|
||
/* Write out an Irix 6 armap. The Irix 6 tools are supposed to be
|
||
able to handle ordinary ELF armaps, but at least on Irix 6.2 the
|
||
linker crashes. */
|
||
|
||
static boolean
|
||
mips_elf64_write_armap (arch, elength, map, symbol_count, stridx)
|
||
bfd *arch;
|
||
unsigned int elength;
|
||
struct orl *map;
|
||
unsigned int symbol_count;
|
||
int stridx;
|
||
{
|
||
unsigned int ranlibsize = (symbol_count * 8) + 8;
|
||
unsigned int stringsize = stridx;
|
||
unsigned int mapsize = stringsize + ranlibsize;
|
||
file_ptr archive_member_file_ptr;
|
||
bfd *current = arch->archive_head;
|
||
unsigned int count;
|
||
struct ar_hdr hdr;
|
||
unsigned int i;
|
||
int padding;
|
||
bfd_byte buf[8];
|
||
|
||
padding = BFD_ALIGN (mapsize, 8) - mapsize;
|
||
mapsize += padding;
|
||
|
||
/* work out where the first object file will go in the archive */
|
||
archive_member_file_ptr = (mapsize
|
||
+ elength
|
||
+ sizeof (struct ar_hdr)
|
||
+ SARMAG);
|
||
|
||
memset ((char *) (&hdr), 0, sizeof (struct ar_hdr));
|
||
strcpy (hdr.ar_name, "/SYM64/");
|
||
sprintf (hdr.ar_size, "%-10d", (int) mapsize);
|
||
sprintf (hdr.ar_date, "%ld", (long) time (NULL));
|
||
/* This, at least, is what Intel coff sets the values to.: */
|
||
sprintf ((hdr.ar_uid), "%d", 0);
|
||
sprintf ((hdr.ar_gid), "%d", 0);
|
||
sprintf ((hdr.ar_mode), "%-7o", (unsigned) 0);
|
||
strncpy (hdr.ar_fmag, ARFMAG, 2);
|
||
|
||
for (i = 0; i < sizeof (struct ar_hdr); i++)
|
||
if (((char *) (&hdr))[i] == '\0')
|
||
(((char *) (&hdr))[i]) = ' ';
|
||
|
||
/* Write the ar header for this item and the number of symbols */
|
||
|
||
if (bfd_write ((PTR) &hdr, 1, sizeof (struct ar_hdr), arch)
|
||
!= sizeof (struct ar_hdr))
|
||
return false;
|
||
|
||
bfd_putb64 (symbol_count, buf);
|
||
if (bfd_write (buf, 1, 8, arch) != 8)
|
||
return false;
|
||
|
||
/* Two passes, first write the file offsets for each symbol -
|
||
remembering that each offset is on a two byte boundary. */
|
||
|
||
/* Write out the file offset for the file associated with each
|
||
symbol, and remember to keep the offsets padded out. */
|
||
|
||
current = arch->archive_head;
|
||
count = 0;
|
||
while (current != (bfd *) NULL && count < symbol_count)
|
||
{
|
||
/* For each symbol which is used defined in this object, write out
|
||
the object file's address in the archive */
|
||
|
||
while (((bfd *) (map[count]).pos) == current)
|
||
{
|
||
bfd_putb64 (archive_member_file_ptr, buf);
|
||
if (bfd_write (buf, 1, 8, arch) != 8)
|
||
return false;
|
||
count++;
|
||
}
|
||
/* Add size of this archive entry */
|
||
archive_member_file_ptr += (arelt_size (current)
|
||
+ sizeof (struct ar_hdr));
|
||
/* remember about the even alignment */
|
||
archive_member_file_ptr += archive_member_file_ptr % 2;
|
||
current = current->next;
|
||
}
|
||
|
||
/* now write the strings themselves */
|
||
for (count = 0; count < symbol_count; count++)
|
||
{
|
||
size_t len = strlen (*map[count].name) + 1;
|
||
|
||
if (bfd_write (*map[count].name, 1, len, arch) != len)
|
||
return false;
|
||
}
|
||
|
||
/* The spec says that this should be padded to an 8 byte boundary.
|
||
However, the Irix 6.2 tools do not appear to do this. */
|
||
while (padding != 0)
|
||
{
|
||
if (bfd_write ("", 1, 1, arch) != 1)
|
||
return false;
|
||
--padding;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/* ECOFF swapping routines. These are used when dealing with the
|
||
.mdebug section, which is in the ECOFF debugging format. */
|
||
static const struct ecoff_debug_swap mips_elf64_ecoff_debug_swap =
|
||
{
|
||
/* Symbol table magic number. */
|
||
magicSym2,
|
||
/* Alignment of debugging information. E.g., 4. */
|
||
8,
|
||
/* Sizes of external symbolic information. */
|
||
sizeof (struct hdr_ext),
|
||
sizeof (struct dnr_ext),
|
||
sizeof (struct pdr_ext),
|
||
sizeof (struct sym_ext),
|
||
sizeof (struct opt_ext),
|
||
sizeof (struct fdr_ext),
|
||
sizeof (struct rfd_ext),
|
||
sizeof (struct ext_ext),
|
||
/* Functions to swap in external symbolic data. */
|
||
ecoff_swap_hdr_in,
|
||
ecoff_swap_dnr_in,
|
||
ecoff_swap_pdr_in,
|
||
ecoff_swap_sym_in,
|
||
ecoff_swap_opt_in,
|
||
ecoff_swap_fdr_in,
|
||
ecoff_swap_rfd_in,
|
||
ecoff_swap_ext_in,
|
||
_bfd_ecoff_swap_tir_in,
|
||
_bfd_ecoff_swap_rndx_in,
|
||
/* Functions to swap out external symbolic data. */
|
||
ecoff_swap_hdr_out,
|
||
ecoff_swap_dnr_out,
|
||
ecoff_swap_pdr_out,
|
||
ecoff_swap_sym_out,
|
||
ecoff_swap_opt_out,
|
||
ecoff_swap_fdr_out,
|
||
ecoff_swap_rfd_out,
|
||
ecoff_swap_ext_out,
|
||
_bfd_ecoff_swap_tir_out,
|
||
_bfd_ecoff_swap_rndx_out,
|
||
/* Function to read in symbolic data. */
|
||
_bfd_mips_elf_read_ecoff_info
|
||
};
|
||
|
||
/* Relocations in the 64 bit MIPS ELF ABI are more complex than in
|
||
standard ELF. This structure is used to redirect the relocation
|
||
handling routines. */
|
||
|
||
const struct elf_size_info mips_elf64_size_info =
|
||
{
|
||
sizeof (Elf64_External_Ehdr),
|
||
sizeof (Elf64_External_Phdr),
|
||
sizeof (Elf64_External_Shdr),
|
||
sizeof (Elf64_Mips_External_Rel),
|
||
sizeof (Elf64_Mips_External_Rela),
|
||
sizeof (Elf64_External_Sym),
|
||
sizeof (Elf64_External_Dyn),
|
||
sizeof (Elf_External_Note),
|
||
64, /* arch_size */
|
||
8, /* file_align */
|
||
ELFCLASS64,
|
||
EV_CURRENT,
|
||
bfd_elf64_write_out_phdrs,
|
||
bfd_elf64_write_shdrs_and_ehdr,
|
||
mips_elf64_write_relocs,
|
||
bfd_elf64_swap_symbol_out,
|
||
mips_elf64_slurp_reloc_table,
|
||
bfd_elf64_slurp_symbol_table,
|
||
bfd_elf64_swap_dyn_in
|
||
};
|
||
|
||
#define TARGET_LITTLE_SYM bfd_elf64_littlemips_vec
|
||
#define TARGET_LITTLE_NAME "elf64-littlemips"
|
||
#define TARGET_BIG_SYM bfd_elf64_bigmips_vec
|
||
#define TARGET_BIG_NAME "elf64-bigmips"
|
||
#define ELF_ARCH bfd_arch_mips
|
||
#define ELF_MACHINE_CODE EM_MIPS
|
||
#define ELF_MAXPAGESIZE 0x1000
|
||
#define elf_backend_size_info mips_elf64_size_info
|
||
#define elf_backend_object_p _bfd_mips_elf_object_p
|
||
#define elf_backend_section_from_shdr mips_elf64_section_from_shdr
|
||
#define elf_backend_fake_sections _bfd_mips_elf_fake_sections
|
||
#define elf_backend_section_from_bfd_section \
|
||
_bfd_mips_elf_section_from_bfd_section
|
||
#define elf_backend_section_processing mips_elf64_section_processing
|
||
#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
|
||
#define elf_backend_final_write_processing \
|
||
_bfd_mips_elf_final_write_processing
|
||
#define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap
|
||
|
||
#define bfd_elf64_find_nearest_line _bfd_mips_elf_find_nearest_line
|
||
#define bfd_elf64_get_reloc_upper_bound mips_elf64_get_reloc_upper_bound
|
||
#define bfd_elf64_bfd_reloc_type_lookup mips_elf64_reloc_type_lookup
|
||
#define bfd_elf64_set_section_contents _bfd_mips_elf_set_section_contents
|
||
#define bfd_elf64_bfd_copy_private_bfd_data \
|
||
_bfd_mips_elf_copy_private_bfd_data
|
||
#define bfd_elf64_bfd_merge_private_bfd_data \
|
||
_bfd_mips_elf_merge_private_bfd_data
|
||
#define bfd_elf64_bfd_set_private_flags _bfd_mips_elf_set_private_flags
|
||
|
||
#define bfd_elf64_archive_functions
|
||
#define bfd_elf64_archive_slurp_armap mips_elf64_slurp_armap
|
||
#define bfd_elf64_archive_slurp_extended_name_table \
|
||
_bfd_archive_coff_slurp_extended_name_table
|
||
#define bfd_elf64_archive_construct_extended_name_table \
|
||
_bfd_archive_coff_construct_extended_name_table
|
||
#define bfd_elf64_archive_truncate_arname \
|
||
_bfd_archive_coff_truncate_arname
|
||
#define bfd_elf64_archive_write_armap mips_elf64_write_armap
|
||
#define bfd_elf64_archive_read_ar_hdr _bfd_archive_coff_read_ar_hdr
|
||
#define bfd_elf64_archive_openr_next_archived_file \
|
||
_bfd_archive_coff_openr_next_archived_file
|
||
#define bfd_elf64_archive_get_elt_at_index \
|
||
_bfd_archive_coff_get_elt_at_index
|
||
#define bfd_elf64_archive_generic_stat_arch_elt \
|
||
_bfd_archive_coff_generic_stat_arch_elt
|
||
#define bfd_elf64_archive_update_armap_timestamp \
|
||
_bfd_archive_coff_update_armap_timestamp
|
||
|
||
#include "elf64-target.h"
|