--- /dev/null
+/* MIPS-specific support for 64-bit ELF
+ Copyright 1996 Free Software Foundation, Inc.
+ Ian Lance Taylor, Cygnus Support
+
+This file is part of BFD, the Binary File Descriptor library.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "bfdlink.h"
+#include "genlink.h"
+#include "elf-bfd.h"
+#include "elf/mips.h"
+
+/* This file supports the 64-bit MIPS ELF ABI.
+
+ The MIPS 64-bit ELF ABI uses an unusual reloc format. This file
+ overrides the usual ELF reloc handling, and handles reading and
+ writing the relocations here. */
+
+static void mips_elf64_swap_reloc_in
+ PARAMS ((bfd *, const Elf64_Mips_External_Rel *,
+ Elf64_Mips_Internal_Rel *));
+static void mips_elf64_swap_reloca_in
+ PARAMS ((bfd *, const Elf64_Mips_External_Rela *,
+ Elf64_Mips_Internal_Rela *));
+static void mips_elf64_swap_reloc_out
+ PARAMS ((bfd *, const Elf64_Mips_Internal_Rel *,
+ Elf64_Mips_External_Rel *));
+static void mips_elf64_swap_reloca_out
+ PARAMS ((bfd *, const Elf64_Mips_Internal_Rela *,
+ Elf64_Mips_External_Rela *));
+static reloc_howto_type *mips_elf64_reloc_type_lookup
+ PARAMS ((bfd *, bfd_reloc_code_real_type));
+static boolean mips_elf64_slurp_one_reloc_table
+ PARAMS ((bfd *, asection *, asymbol **, const Elf_Internal_Shdr *));
+static boolean mips_elf64_slurp_reloc_table
+ PARAMS ((bfd *, asection *, asymbol **));
+static void mips_elf64_write_relocs PARAMS ((bfd *, asection *, PTR));
+static boolean mips_elf64_section_from_shdr
+ PARAMS ((bfd *, Elf_Internal_Shdr *, char *));
+
+/* The relocation types. */
+
+enum mips_elf64_reloc_type
+{
+ R_MIPS_NONE = 0,
+ R_MIPS_16 = 1,
+ R_MIPS_32 = 2,
+ R_MIPS_ADD = 2,
+ R_MIPS_REL32 = 3,
+ R_MIPS_REL = 3,
+ R_MIPS_26 = 4,
+ R_MIPS_HI16 = 5,
+ R_MIPS_LO16 = 6,
+ R_MIPS_GPREL16 = 7,
+ R_MIPS_GPREL = 7,
+ R_MIPS_LITERAL = 8,
+ R_MIPS_GOT16 = 9,
+ R_MIPS_GOT = 9,
+ R_MIPS_PC16 = 10,
+ R_MIPS_CALL16 = 11,
+ R_MIPS_CALL = 11,
+ R_MIPS_GPREL32 = 12,
+ R_MIPS_SHIFT5 = 16,
+ R_MIPS_SHIFT6 = 17,
+ R_MIPS_64 = 18,
+ R_MIPS_GOT_DISP = 19,
+ R_MIPS_GOT_PAGE = 20,
+ R_MIPS_GOT_OFST = 21,
+ R_MIPS_GOT_HI16 = 22,
+ R_MIPS_GOT_LO16 = 23,
+ R_MIPS_SUB = 24,
+ R_MIPS_INSERT_A = 25,
+ R_MIPS_INSERT_B = 26,
+ R_MIPS_DELETE = 27,
+ R_MIPS_HIGHER = 28,
+ R_MIPS_HIGHEST = 29,
+ R_MIPS_CALL_HI16 = 30,
+ R_MIPS_CALL_LO16 = 31,
+ R_MIPS_SCN_DISP = 32,
+ R_MIPS_REL16 = 33,
+ R_MIPS_ADD_IMMEDIATE = 34
+};
+
+/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
+ from smaller values. Start with zero, widen, *then* decrement. */
+#define MINUS_ONE (((bfd_vma)0) - 1)
+
+/* FIXME: These need to be rewritten, or we need to use the versions
+ in elf32-mips.c. */
+#define mips_elf_hi16_reloc bfd_elf_generic_reloc
+#define mips_elf_lo16_reloc bfd_elf_generic_reloc
+#define mips_elf_gprel16_reloc bfd_elf_generic_reloc
+#define mips_elf_got16_reloc bfd_elf_generic_reloc
+#define mips_elf_gprel32_reloc bfd_elf_generic_reloc
+
+/* The relocation table used for SHT_REL sections. */
+
+static reloc_howto_type mips_elf64_howto_table_rel[] =
+{
+ /* 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 */
+ 0xffff, /* 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 */
+ 0xffffffff, /* 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 */
+ 0xffffffff, /* 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 */
+ 0x3ffffff, /* 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 */
+ mips_elf_hi16_reloc, /* special_function */
+ "R_MIPS_HI16", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* 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 */
+ mips_elf_lo16_reloc, /* special_function */
+ "R_MIPS_LO16", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* 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 */
+ mips_elf_gprel16_reloc, /* special_function */
+ "R_MIPS_GPREL16", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* 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 */
+ mips_elf_gprel16_reloc, /* special_function */
+ "R_MIPS_LITERAL", /* name */
+ true, /* partial_inplace */
+ 0xffff, /* src_mask */
+ 0xffff, /* dst_mask */
+ false), /* pcrel_offset */
+
+ /* Reference to global offset table. */
+ 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 */
+ mips_elf_got16_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 */
+ 0xffff, /* 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 */
+ mips_elf_gprel32_reloc, /* special_function */
+ "R_MIPS_GPREL32", /* name */
+ true, /* partial_inplace */
+ 0xffffffff, /* 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 */
+ 0x000007c0, /* 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 */
+ 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 */
+};
+
+/* 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 */
+ 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 */
+ 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. */
+ 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 */
+ mips_elf_got16_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 */
+ 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 */
+};
+
+/* 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);
+}
+
+/* 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);
+}
+
+/* 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;
+}
+
+/* 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)
+ bfd *abfd;
+ asection *asect;
+ asymbol **symbols;
+{
+ struct bfd_elf_section_data * const d = elf_section_data (asect);
+
+ 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;
+{
+ /* FIXME. */
+ abort ();
+}
+\f
+/* 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;
+
+ return true;
+}
+
+/* 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_section_from_shdr mips_elf64_section_from_shdr
+#define bfd_elf64_bfd_reloc_type_lookup mips_elf64_reloc_type_lookup
+
+#include "elf64-target.h"
projects / deliverable / binutils-gdb.git / commitdiff
