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julius |
/* MIPS-specific support for 32-bit ELF
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Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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2003, 2004, 2005, 2007 Free Software Foundation, Inc.
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Most of the information added by Ian Lance Taylor, Cygnus Support,
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<ian@cygnus.com>.
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N32/64 ABI support added by Mark Mitchell, CodeSourcery, LLC.
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<mark@codesourcery.com>
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Traditional MIPS targets support added by Koundinya.K, Dansk Data
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Elektronik & Operations Research Group. <kk@ddeorg.soft.net>
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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 3 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., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/* This file handles MIPS ELF targets. SGI Irix 5 uses a slightly
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different MIPS ELF from other targets. This matters when linking.
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This file supports both, switching at runtime. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.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 "elfxx-mips.h"
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#include "elf/mips.h"
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#include "elf-vxworks.h"
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/* Get the ECOFF swapping routines. */
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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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#include "coff/mips.h"
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#define ECOFF_SIGNED_32
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#include "ecoffswap.h"
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static bfd_reloc_status_type gprel32_with_gp
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(bfd *, asymbol *, arelent *, asection *, bfd_boolean, void *, bfd_vma);
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static bfd_reloc_status_type mips_elf_gprel32_reloc
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(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
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static bfd_reloc_status_type mips32_64bit_reloc
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(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
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static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
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(bfd *, bfd_reloc_code_real_type);
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static reloc_howto_type *mips_elf32_rtype_to_howto
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(unsigned int, bfd_boolean);
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static void mips_info_to_howto_rel
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(bfd *, arelent *, Elf_Internal_Rela *);
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static void mips_info_to_howto_rela
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(bfd *, arelent *, Elf_Internal_Rela *);
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static bfd_boolean mips_elf_sym_is_global
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(bfd *, asymbol *);
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static bfd_boolean mips_elf32_object_p
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(bfd *);
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static bfd_boolean mips_elf_is_local_label_name
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(bfd *, const char *);
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static bfd_reloc_status_type mips16_gprel_reloc
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(bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
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static bfd_reloc_status_type mips_elf_final_gp
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(bfd *, asymbol *, bfd_boolean, char **, bfd_vma *);
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static bfd_boolean mips_elf_assign_gp
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(bfd *, bfd_vma *);
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static bfd_boolean elf32_mips_grok_prstatus
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(bfd *, Elf_Internal_Note *);
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static bfd_boolean elf32_mips_grok_psinfo
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(bfd *, Elf_Internal_Note *);
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static irix_compat_t elf32_mips_irix_compat
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(bfd *);
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extern const bfd_target bfd_elf32_bigmips_vec;
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extern const bfd_target bfd_elf32_littlemips_vec;
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/* Nonzero if ABFD is using the N32 ABI. */
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#define ABI_N32_P(abfd) \
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((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI2) != 0)
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/* Whether we are trying to be compatible with IRIX at all. */
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#define SGI_COMPAT(abfd) \
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(elf32_mips_irix_compat (abfd) != ict_none)
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/* The number of local .got entries we reserve. */
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#define MIPS_RESERVED_GOTNO (2)
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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 elf_mips_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_mips_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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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_generic_reloc, /* special_function */
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"R_MIPS_16", /* name */
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TRUE, /* partial_inplace */
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0x0000ffff, /* src_mask */
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0x0000ffff, /* 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_dont, /* complain_on_overflow */
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_bfd_mips_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_dont, /* complain_on_overflow */
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_bfd_mips_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 jump 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 + 4. */
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_bfd_mips_elf_generic_reloc, /* special_function */
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"R_MIPS_26", /* name */
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TRUE, /* partial_inplace */
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0x03ffffff, /* src_mask */
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0x03ffffff, /* 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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16, /* 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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0x0000ffff, /* src_mask */
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0x0000ffff, /* 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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0x0000ffff, /* src_mask */
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0x0000ffff, /* 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_elf32_gprel16_reloc, /* special_function */
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"R_MIPS_GPREL16", /* name */
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TRUE, /* partial_inplace */
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0x0000ffff, /* src_mask */
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0x0000ffff, /* 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_elf32_gprel16_reloc, /* special_function */
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"R_MIPS_LITERAL", /* name */
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TRUE, /* partial_inplace */
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0x0000ffff, /* src_mask */
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0x0000ffff, /* 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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TRUE, /* partial_inplace */
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0x0000ffff, /* src_mask */
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0x0000ffff, /* dst_mask */
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FALSE), /* pcrel_offset */
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/* 16 bit PC relative reference. Note that the ABI document has a typo
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and claims R_MIPS_PC16 to be not rightshifted, rendering it useless.
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We do the right thing here. */
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HOWTO (R_MIPS_PC16, /* type */
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| 265 |
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2, /* rightshift */
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| 266 |
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2, /* size (0 = byte, 1 = short, 2 = long) */
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| 267 |
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16, /* bitsize */
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| 268 |
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TRUE, /* pc_relative */
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| 269 |
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0, /* bitpos */
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| 270 |
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complain_overflow_signed, /* complain_on_overflow */
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| 271 |
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_bfd_mips_elf_generic_reloc, /* special_function */
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| 272 |
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"R_MIPS_PC16", /* name */
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| 273 |
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TRUE, /* partial_inplace */
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| 274 |
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0x0000ffff, /* src_mask */
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| 275 |
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0x0000ffff, /* dst_mask */
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| 276 |
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TRUE), /* pcrel_offset */
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| 277 |
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| 278 |
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/* 16 bit call through global offset table. */
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| 279 |
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HOWTO (R_MIPS_CALL16, /* type */
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| 280 |
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0, /* rightshift */
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| 281 |
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2, /* size (0 = byte, 1 = short, 2 = long) */
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| 282 |
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16, /* bitsize */
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| 283 |
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FALSE, /* pc_relative */
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| 284 |
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0, /* bitpos */
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| 285 |
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complain_overflow_signed, /* complain_on_overflow */
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| 286 |
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_bfd_mips_elf_generic_reloc, /* special_function */
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| 287 |
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"R_MIPS_CALL16", /* name */
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| 288 |
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TRUE, /* partial_inplace */
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| 289 |
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0x0000ffff, /* src_mask */
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| 290 |
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0x0000ffff, /* dst_mask */
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| 291 |
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FALSE), /* pcrel_offset */
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| 292 |
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| 293 |
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/* 32 bit GP relative reference. */
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| 294 |
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HOWTO (R_MIPS_GPREL32, /* type */
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| 295 |
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0, /* rightshift */
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| 296 |
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2, /* size (0 = byte, 1 = short, 2 = long) */
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| 297 |
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32, /* bitsize */
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| 298 |
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FALSE, /* pc_relative */
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| 299 |
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0, /* bitpos */
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| 300 |
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complain_overflow_dont, /* complain_on_overflow */
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| 301 |
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mips_elf_gprel32_reloc, /* special_function */
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| 302 |
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"R_MIPS_GPREL32", /* name */
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TRUE, /* partial_inplace */
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| 304 |
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0xffffffff, /* src_mask */
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| 305 |
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0xffffffff, /* dst_mask */
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| 306 |
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FALSE), /* pcrel_offset */
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| 307 |
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| 308 |
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/* The remaining relocs are defined on Irix 5, although they are
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| 309 |
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not defined by the ABI. */
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| 310 |
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EMPTY_HOWTO (13),
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| 311 |
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EMPTY_HOWTO (14),
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| 312 |
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|
EMPTY_HOWTO (15),
|
| 313 |
|
|
|
| 314 |
|
|
/* A 5 bit shift field. */
|
| 315 |
|
|
HOWTO (R_MIPS_SHIFT5, /* type */
|
| 316 |
|
|
0, /* rightshift */
|
| 317 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 318 |
|
|
5, /* bitsize */
|
| 319 |
|
|
FALSE, /* pc_relative */
|
| 320 |
|
|
6, /* bitpos */
|
| 321 |
|
|
complain_overflow_bitfield, /* complain_on_overflow */
|
| 322 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 323 |
|
|
"R_MIPS_SHIFT5", /* name */
|
| 324 |
|
|
TRUE, /* partial_inplace */
|
| 325 |
|
|
0x000007c0, /* src_mask */
|
| 326 |
|
|
0x000007c0, /* dst_mask */
|
| 327 |
|
|
FALSE), /* pcrel_offset */
|
| 328 |
|
|
|
| 329 |
|
|
/* A 6 bit shift field. */
|
| 330 |
|
|
/* FIXME: This is not handled correctly; a special function is
|
| 331 |
|
|
needed to put the most significant bit in the right place. */
|
| 332 |
|
|
HOWTO (R_MIPS_SHIFT6, /* type */
|
| 333 |
|
|
0, /* rightshift */
|
| 334 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 335 |
|
|
6, /* bitsize */
|
| 336 |
|
|
FALSE, /* pc_relative */
|
| 337 |
|
|
6, /* bitpos */
|
| 338 |
|
|
complain_overflow_bitfield, /* complain_on_overflow */
|
| 339 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 340 |
|
|
"R_MIPS_SHIFT6", /* name */
|
| 341 |
|
|
TRUE, /* partial_inplace */
|
| 342 |
|
|
0x000007c4, /* src_mask */
|
| 343 |
|
|
0x000007c4, /* dst_mask */
|
| 344 |
|
|
FALSE), /* pcrel_offset */
|
| 345 |
|
|
|
| 346 |
|
|
/* A 64 bit relocation. */
|
| 347 |
|
|
HOWTO (R_MIPS_64, /* type */
|
| 348 |
|
|
0, /* rightshift */
|
| 349 |
|
|
4, /* size (0 = byte, 1 = short, 2 = long) */
|
| 350 |
|
|
64, /* bitsize */
|
| 351 |
|
|
FALSE, /* pc_relative */
|
| 352 |
|
|
0, /* bitpos */
|
| 353 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 354 |
|
|
mips32_64bit_reloc, /* special_function */
|
| 355 |
|
|
"R_MIPS_64", /* name */
|
| 356 |
|
|
TRUE, /* partial_inplace */
|
| 357 |
|
|
MINUS_ONE, /* src_mask */
|
| 358 |
|
|
MINUS_ONE, /* dst_mask */
|
| 359 |
|
|
FALSE), /* pcrel_offset */
|
| 360 |
|
|
|
| 361 |
|
|
/* Displacement in the global offset table. */
|
| 362 |
|
|
HOWTO (R_MIPS_GOT_DISP, /* type */
|
| 363 |
|
|
0, /* rightshift */
|
| 364 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 365 |
|
|
16, /* bitsize */
|
| 366 |
|
|
FALSE, /* pc_relative */
|
| 367 |
|
|
0, /* bitpos */
|
| 368 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 369 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 370 |
|
|
"R_MIPS_GOT_DISP", /* name */
|
| 371 |
|
|
TRUE, /* partial_inplace */
|
| 372 |
|
|
0x0000ffff, /* src_mask */
|
| 373 |
|
|
0x0000ffff, /* dst_mask */
|
| 374 |
|
|
FALSE), /* pcrel_offset */
|
| 375 |
|
|
|
| 376 |
|
|
/* Displacement to page pointer in the global offset table. */
|
| 377 |
|
|
HOWTO (R_MIPS_GOT_PAGE, /* type */
|
| 378 |
|
|
0, /* rightshift */
|
| 379 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 380 |
|
|
16, /* bitsize */
|
| 381 |
|
|
FALSE, /* pc_relative */
|
| 382 |
|
|
0, /* bitpos */
|
| 383 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 384 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 385 |
|
|
"R_MIPS_GOT_PAGE", /* name */
|
| 386 |
|
|
TRUE, /* partial_inplace */
|
| 387 |
|
|
0x0000ffff, /* src_mask */
|
| 388 |
|
|
0x0000ffff, /* dst_mask */
|
| 389 |
|
|
FALSE), /* pcrel_offset */
|
| 390 |
|
|
|
| 391 |
|
|
/* Offset from page pointer in the global offset table. */
|
| 392 |
|
|
HOWTO (R_MIPS_GOT_OFST, /* type */
|
| 393 |
|
|
0, /* rightshift */
|
| 394 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 395 |
|
|
16, /* bitsize */
|
| 396 |
|
|
FALSE, /* pc_relative */
|
| 397 |
|
|
0, /* bitpos */
|
| 398 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 399 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 400 |
|
|
"R_MIPS_GOT_OFST", /* name */
|
| 401 |
|
|
TRUE, /* partial_inplace */
|
| 402 |
|
|
0x0000ffff, /* src_mask */
|
| 403 |
|
|
0x0000ffff, /* dst_mask */
|
| 404 |
|
|
FALSE), /* pcrel_offset */
|
| 405 |
|
|
|
| 406 |
|
|
/* High 16 bits of displacement in global offset table. */
|
| 407 |
|
|
HOWTO (R_MIPS_GOT_HI16, /* type */
|
| 408 |
|
|
0, /* rightshift */
|
| 409 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 410 |
|
|
16, /* bitsize */
|
| 411 |
|
|
FALSE, /* pc_relative */
|
| 412 |
|
|
0, /* bitpos */
|
| 413 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 414 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 415 |
|
|
"R_MIPS_GOT_HI16", /* name */
|
| 416 |
|
|
TRUE, /* partial_inplace */
|
| 417 |
|
|
0x0000ffff, /* src_mask */
|
| 418 |
|
|
0x0000ffff, /* dst_mask */
|
| 419 |
|
|
FALSE), /* pcrel_offset */
|
| 420 |
|
|
|
| 421 |
|
|
/* Low 16 bits of displacement in global offset table. */
|
| 422 |
|
|
HOWTO (R_MIPS_GOT_LO16, /* type */
|
| 423 |
|
|
0, /* rightshift */
|
| 424 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 425 |
|
|
16, /* bitsize */
|
| 426 |
|
|
FALSE, /* pc_relative */
|
| 427 |
|
|
0, /* bitpos */
|
| 428 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 429 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 430 |
|
|
"R_MIPS_GOT_LO16", /* name */
|
| 431 |
|
|
TRUE, /* partial_inplace */
|
| 432 |
|
|
0x0000ffff, /* src_mask */
|
| 433 |
|
|
0x0000ffff, /* dst_mask */
|
| 434 |
|
|
FALSE), /* pcrel_offset */
|
| 435 |
|
|
|
| 436 |
|
|
/* 64 bit subtraction. Used in the N32 ABI. */
|
| 437 |
|
|
HOWTO (R_MIPS_SUB, /* type */
|
| 438 |
|
|
0, /* rightshift */
|
| 439 |
|
|
4, /* size (0 = byte, 1 = short, 2 = long) */
|
| 440 |
|
|
64, /* bitsize */
|
| 441 |
|
|
FALSE, /* pc_relative */
|
| 442 |
|
|
0, /* bitpos */
|
| 443 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 444 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 445 |
|
|
"R_MIPS_SUB", /* name */
|
| 446 |
|
|
TRUE, /* partial_inplace */
|
| 447 |
|
|
MINUS_ONE, /* src_mask */
|
| 448 |
|
|
MINUS_ONE, /* dst_mask */
|
| 449 |
|
|
FALSE), /* pcrel_offset */
|
| 450 |
|
|
|
| 451 |
|
|
/* Used to cause the linker to insert and delete instructions? */
|
| 452 |
|
|
EMPTY_HOWTO (R_MIPS_INSERT_A),
|
| 453 |
|
|
EMPTY_HOWTO (R_MIPS_INSERT_B),
|
| 454 |
|
|
EMPTY_HOWTO (R_MIPS_DELETE),
|
| 455 |
|
|
|
| 456 |
|
|
/* Get the higher value of a 64 bit addend. */
|
| 457 |
|
|
HOWTO (R_MIPS_HIGHER, /* type */
|
| 458 |
|
|
0, /* rightshift */
|
| 459 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 460 |
|
|
16, /* bitsize */
|
| 461 |
|
|
FALSE, /* pc_relative */
|
| 462 |
|
|
0, /* bitpos */
|
| 463 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 464 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 465 |
|
|
"R_MIPS_HIGHER", /* name */
|
| 466 |
|
|
TRUE, /* partial_inplace */
|
| 467 |
|
|
0x0000ffff, /* src_mask */
|
| 468 |
|
|
0x0000ffff, /* dst_mask */
|
| 469 |
|
|
FALSE), /* pcrel_offset */
|
| 470 |
|
|
|
| 471 |
|
|
/* Get the highest value of a 64 bit addend. */
|
| 472 |
|
|
HOWTO (R_MIPS_HIGHEST, /* type */
|
| 473 |
|
|
0, /* rightshift */
|
| 474 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 475 |
|
|
16, /* bitsize */
|
| 476 |
|
|
FALSE, /* pc_relative */
|
| 477 |
|
|
0, /* bitpos */
|
| 478 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 479 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 480 |
|
|
"R_MIPS_HIGHEST", /* name */
|
| 481 |
|
|
TRUE, /* partial_inplace */
|
| 482 |
|
|
0x0000ffff, /* src_mask */
|
| 483 |
|
|
0x0000ffff, /* dst_mask */
|
| 484 |
|
|
FALSE), /* pcrel_offset */
|
| 485 |
|
|
|
| 486 |
|
|
/* High 16 bits of displacement in global offset table. */
|
| 487 |
|
|
HOWTO (R_MIPS_CALL_HI16, /* type */
|
| 488 |
|
|
0, /* rightshift */
|
| 489 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 490 |
|
|
16, /* bitsize */
|
| 491 |
|
|
FALSE, /* pc_relative */
|
| 492 |
|
|
0, /* bitpos */
|
| 493 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 494 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 495 |
|
|
"R_MIPS_CALL_HI16", /* name */
|
| 496 |
|
|
TRUE, /* partial_inplace */
|
| 497 |
|
|
0x0000ffff, /* src_mask */
|
| 498 |
|
|
0x0000ffff, /* dst_mask */
|
| 499 |
|
|
FALSE), /* pcrel_offset */
|
| 500 |
|
|
|
| 501 |
|
|
/* Low 16 bits of displacement in global offset table. */
|
| 502 |
|
|
HOWTO (R_MIPS_CALL_LO16, /* type */
|
| 503 |
|
|
0, /* rightshift */
|
| 504 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 505 |
|
|
16, /* bitsize */
|
| 506 |
|
|
FALSE, /* pc_relative */
|
| 507 |
|
|
0, /* bitpos */
|
| 508 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 509 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 510 |
|
|
"R_MIPS_CALL_LO16", /* name */
|
| 511 |
|
|
TRUE, /* partial_inplace */
|
| 512 |
|
|
0x0000ffff, /* src_mask */
|
| 513 |
|
|
0x0000ffff, /* dst_mask */
|
| 514 |
|
|
FALSE), /* pcrel_offset */
|
| 515 |
|
|
|
| 516 |
|
|
/* Section displacement. */
|
| 517 |
|
|
HOWTO (R_MIPS_SCN_DISP, /* type */
|
| 518 |
|
|
0, /* rightshift */
|
| 519 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 520 |
|
|
32, /* bitsize */
|
| 521 |
|
|
FALSE, /* pc_relative */
|
| 522 |
|
|
0, /* bitpos */
|
| 523 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 524 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 525 |
|
|
"R_MIPS_SCN_DISP", /* name */
|
| 526 |
|
|
TRUE, /* partial_inplace */
|
| 527 |
|
|
0xffffffff, /* src_mask */
|
| 528 |
|
|
0xffffffff, /* dst_mask */
|
| 529 |
|
|
FALSE), /* pcrel_offset */
|
| 530 |
|
|
|
| 531 |
|
|
EMPTY_HOWTO (R_MIPS_REL16),
|
| 532 |
|
|
EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
|
| 533 |
|
|
EMPTY_HOWTO (R_MIPS_PJUMP),
|
| 534 |
|
|
EMPTY_HOWTO (R_MIPS_RELGOT),
|
| 535 |
|
|
|
| 536 |
|
|
/* Protected jump conversion. This is an optimization hint. No
|
| 537 |
|
|
relocation is required for correctness. */
|
| 538 |
|
|
HOWTO (R_MIPS_JALR, /* type */
|
| 539 |
|
|
0, /* rightshift */
|
| 540 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 541 |
|
|
32, /* bitsize */
|
| 542 |
|
|
FALSE, /* pc_relative */
|
| 543 |
|
|
0, /* bitpos */
|
| 544 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 545 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 546 |
|
|
"R_MIPS_JALR", /* name */
|
| 547 |
|
|
FALSE, /* partial_inplace */
|
| 548 |
|
|
0x00000000, /* src_mask */
|
| 549 |
|
|
0x00000000, /* dst_mask */
|
| 550 |
|
|
FALSE), /* pcrel_offset */
|
| 551 |
|
|
|
| 552 |
|
|
/* TLS GD/LD dynamic relocations. */
|
| 553 |
|
|
HOWTO (R_MIPS_TLS_DTPMOD32, /* type */
|
| 554 |
|
|
0, /* rightshift */
|
| 555 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 556 |
|
|
32, /* bitsize */
|
| 557 |
|
|
FALSE, /* pc_relative */
|
| 558 |
|
|
0, /* bitpos */
|
| 559 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 560 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 561 |
|
|
"R_MIPS_TLS_DTPMOD32", /* name */
|
| 562 |
|
|
TRUE, /* partial_inplace */
|
| 563 |
|
|
0xffffffff, /* src_mask */
|
| 564 |
|
|
0xffffffff, /* dst_mask */
|
| 565 |
|
|
FALSE), /* pcrel_offset */
|
| 566 |
|
|
|
| 567 |
|
|
HOWTO (R_MIPS_TLS_DTPREL32, /* type */
|
| 568 |
|
|
0, /* rightshift */
|
| 569 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 570 |
|
|
32, /* bitsize */
|
| 571 |
|
|
FALSE, /* pc_relative */
|
| 572 |
|
|
0, /* bitpos */
|
| 573 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 574 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 575 |
|
|
"R_MIPS_TLS_DTPREL32", /* name */
|
| 576 |
|
|
TRUE, /* partial_inplace */
|
| 577 |
|
|
0xffffffff, /* src_mask */
|
| 578 |
|
|
0xffffffff, /* dst_mask */
|
| 579 |
|
|
FALSE), /* pcrel_offset */
|
| 580 |
|
|
|
| 581 |
|
|
EMPTY_HOWTO (R_MIPS_TLS_DTPMOD64),
|
| 582 |
|
|
EMPTY_HOWTO (R_MIPS_TLS_DTPREL64),
|
| 583 |
|
|
|
| 584 |
|
|
/* TLS general dynamic variable reference. */
|
| 585 |
|
|
HOWTO (R_MIPS_TLS_GD, /* type */
|
| 586 |
|
|
0, /* rightshift */
|
| 587 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 588 |
|
|
16, /* bitsize */
|
| 589 |
|
|
FALSE, /* pc_relative */
|
| 590 |
|
|
0, /* bitpos */
|
| 591 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 592 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 593 |
|
|
"R_MIPS_TLS_GD", /* name */
|
| 594 |
|
|
TRUE, /* partial_inplace */
|
| 595 |
|
|
0x0000ffff, /* src_mask */
|
| 596 |
|
|
0x0000ffff, /* dst_mask */
|
| 597 |
|
|
FALSE), /* pcrel_offset */
|
| 598 |
|
|
|
| 599 |
|
|
/* TLS local dynamic variable reference. */
|
| 600 |
|
|
HOWTO (R_MIPS_TLS_LDM, /* type */
|
| 601 |
|
|
0, /* rightshift */
|
| 602 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 603 |
|
|
16, /* bitsize */
|
| 604 |
|
|
FALSE, /* pc_relative */
|
| 605 |
|
|
0, /* bitpos */
|
| 606 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 607 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 608 |
|
|
"R_MIPS_TLS_LDM", /* name */
|
| 609 |
|
|
TRUE, /* partial_inplace */
|
| 610 |
|
|
0x0000ffff, /* src_mask */
|
| 611 |
|
|
0x0000ffff, /* dst_mask */
|
| 612 |
|
|
FALSE), /* pcrel_offset */
|
| 613 |
|
|
|
| 614 |
|
|
/* TLS local dynamic offset. */
|
| 615 |
|
|
HOWTO (R_MIPS_TLS_DTPREL_HI16, /* type */
|
| 616 |
|
|
0, /* rightshift */
|
| 617 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 618 |
|
|
16, /* bitsize */
|
| 619 |
|
|
FALSE, /* pc_relative */
|
| 620 |
|
|
0, /* bitpos */
|
| 621 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 622 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 623 |
|
|
"R_MIPS_TLS_DTPREL_HI16", /* name */
|
| 624 |
|
|
TRUE, /* partial_inplace */
|
| 625 |
|
|
0x0000ffff, /* src_mask */
|
| 626 |
|
|
0x0000ffff, /* dst_mask */
|
| 627 |
|
|
FALSE), /* pcrel_offset */
|
| 628 |
|
|
|
| 629 |
|
|
/* TLS local dynamic offset. */
|
| 630 |
|
|
HOWTO (R_MIPS_TLS_DTPREL_LO16, /* type */
|
| 631 |
|
|
0, /* rightshift */
|
| 632 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 633 |
|
|
16, /* bitsize */
|
| 634 |
|
|
FALSE, /* pc_relative */
|
| 635 |
|
|
0, /* bitpos */
|
| 636 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 637 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 638 |
|
|
"R_MIPS_TLS_DTPREL_LO16", /* name */
|
| 639 |
|
|
TRUE, /* partial_inplace */
|
| 640 |
|
|
0x0000ffff, /* src_mask */
|
| 641 |
|
|
0x0000ffff, /* dst_mask */
|
| 642 |
|
|
FALSE), /* pcrel_offset */
|
| 643 |
|
|
|
| 644 |
|
|
/* TLS thread pointer offset. */
|
| 645 |
|
|
HOWTO (R_MIPS_TLS_GOTTPREL, /* type */
|
| 646 |
|
|
0, /* rightshift */
|
| 647 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 648 |
|
|
16, /* bitsize */
|
| 649 |
|
|
FALSE, /* pc_relative */
|
| 650 |
|
|
0, /* bitpos */
|
| 651 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 652 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 653 |
|
|
"R_MIPS_TLS_GOTTPREL", /* name */
|
| 654 |
|
|
TRUE, /* partial_inplace */
|
| 655 |
|
|
0x0000ffff, /* src_mask */
|
| 656 |
|
|
0x0000ffff, /* dst_mask */
|
| 657 |
|
|
FALSE), /* pcrel_offset */
|
| 658 |
|
|
|
| 659 |
|
|
/* TLS IE dynamic relocations. */
|
| 660 |
|
|
HOWTO (R_MIPS_TLS_TPREL32, /* type */
|
| 661 |
|
|
0, /* rightshift */
|
| 662 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 663 |
|
|
32, /* bitsize */
|
| 664 |
|
|
FALSE, /* pc_relative */
|
| 665 |
|
|
0, /* bitpos */
|
| 666 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 667 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 668 |
|
|
"R_MIPS_TLS_TPREL32", /* name */
|
| 669 |
|
|
TRUE, /* partial_inplace */
|
| 670 |
|
|
0xffffffff, /* src_mask */
|
| 671 |
|
|
0xffffffff, /* dst_mask */
|
| 672 |
|
|
FALSE), /* pcrel_offset */
|
| 673 |
|
|
|
| 674 |
|
|
EMPTY_HOWTO (R_MIPS_TLS_TPREL64),
|
| 675 |
|
|
|
| 676 |
|
|
/* TLS thread pointer offset. */
|
| 677 |
|
|
HOWTO (R_MIPS_TLS_TPREL_HI16, /* type */
|
| 678 |
|
|
0, /* rightshift */
|
| 679 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 680 |
|
|
16, /* bitsize */
|
| 681 |
|
|
FALSE, /* pc_relative */
|
| 682 |
|
|
0, /* bitpos */
|
| 683 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 684 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 685 |
|
|
"R_MIPS_TLS_TPREL_HI16", /* name */
|
| 686 |
|
|
TRUE, /* partial_inplace */
|
| 687 |
|
|
0x0000ffff, /* src_mask */
|
| 688 |
|
|
0x0000ffff, /* dst_mask */
|
| 689 |
|
|
FALSE), /* pcrel_offset */
|
| 690 |
|
|
|
| 691 |
|
|
/* TLS thread pointer offset. */
|
| 692 |
|
|
HOWTO (R_MIPS_TLS_TPREL_LO16, /* type */
|
| 693 |
|
|
0, /* rightshift */
|
| 694 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 695 |
|
|
16, /* bitsize */
|
| 696 |
|
|
FALSE, /* pc_relative */
|
| 697 |
|
|
0, /* bitpos */
|
| 698 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 699 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 700 |
|
|
"R_MIPS_TLS_TPREL_LO16", /* name */
|
| 701 |
|
|
TRUE, /* partial_inplace */
|
| 702 |
|
|
0x0000ffff, /* src_mask */
|
| 703 |
|
|
0x0000ffff, /* dst_mask */
|
| 704 |
|
|
FALSE), /* pcrel_offset */
|
| 705 |
|
|
|
| 706 |
|
|
/* 32 bit relocation with no addend. */
|
| 707 |
|
|
HOWTO (R_MIPS_GLOB_DAT, /* type */
|
| 708 |
|
|
0, /* rightshift */
|
| 709 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 710 |
|
|
32, /* bitsize */
|
| 711 |
|
|
FALSE, /* pc_relative */
|
| 712 |
|
|
0, /* bitpos */
|
| 713 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 714 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 715 |
|
|
"R_MIPS_GLOB_DAT", /* name */
|
| 716 |
|
|
FALSE, /* partial_inplace */
|
| 717 |
|
|
0x0, /* src_mask */
|
| 718 |
|
|
0xffffffff, /* dst_mask */
|
| 719 |
|
|
FALSE), /* pcrel_offset */
|
| 720 |
|
|
};
|
| 721 |
|
|
|
| 722 |
|
|
/* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This
|
| 723 |
|
|
is a hack to make the linker think that we need 64 bit values. */
|
| 724 |
|
|
static reloc_howto_type elf_mips_ctor64_howto =
|
| 725 |
|
|
HOWTO (R_MIPS_64, /* type */
|
| 726 |
|
|
0, /* rightshift */
|
| 727 |
|
|
4, /* size (0 = byte, 1 = short, 2 = long) */
|
| 728 |
|
|
32, /* bitsize */
|
| 729 |
|
|
FALSE, /* pc_relative */
|
| 730 |
|
|
0, /* bitpos */
|
| 731 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 732 |
|
|
mips32_64bit_reloc, /* special_function */
|
| 733 |
|
|
"R_MIPS_64", /* name */
|
| 734 |
|
|
TRUE, /* partial_inplace */
|
| 735 |
|
|
0xffffffff, /* src_mask */
|
| 736 |
|
|
0xffffffff, /* dst_mask */
|
| 737 |
|
|
FALSE); /* pcrel_offset */
|
| 738 |
|
|
|
| 739 |
|
|
static reloc_howto_type elf_mips16_howto_table_rel[] =
|
| 740 |
|
|
{
|
| 741 |
|
|
/* The reloc used for the mips16 jump instruction. */
|
| 742 |
|
|
HOWTO (R_MIPS16_26, /* type */
|
| 743 |
|
|
2, /* rightshift */
|
| 744 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 745 |
|
|
26, /* bitsize */
|
| 746 |
|
|
FALSE, /* pc_relative */
|
| 747 |
|
|
0, /* bitpos */
|
| 748 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 749 |
|
|
/* This needs complex overflow
|
| 750 |
|
|
detection, because the upper four
|
| 751 |
|
|
bits must match the PC. */
|
| 752 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 753 |
|
|
"R_MIPS16_26", /* name */
|
| 754 |
|
|
TRUE, /* partial_inplace */
|
| 755 |
|
|
0x3ffffff, /* src_mask */
|
| 756 |
|
|
0x3ffffff, /* dst_mask */
|
| 757 |
|
|
FALSE), /* pcrel_offset */
|
| 758 |
|
|
|
| 759 |
|
|
/* The reloc used for the mips16 gprel instruction. */
|
| 760 |
|
|
HOWTO (R_MIPS16_GPREL, /* type */
|
| 761 |
|
|
0, /* rightshift */
|
| 762 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 763 |
|
|
16, /* bitsize */
|
| 764 |
|
|
FALSE, /* pc_relative */
|
| 765 |
|
|
0, /* bitpos */
|
| 766 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 767 |
|
|
mips16_gprel_reloc, /* special_function */
|
| 768 |
|
|
"R_MIPS16_GPREL", /* name */
|
| 769 |
|
|
TRUE, /* partial_inplace */
|
| 770 |
|
|
0x0000ffff, /* src_mask */
|
| 771 |
|
|
0x0000ffff, /* dst_mask */
|
| 772 |
|
|
FALSE), /* pcrel_offset */
|
| 773 |
|
|
|
| 774 |
|
|
/* A placeholder for MIPS16 reference to global offset table. */
|
| 775 |
|
|
EMPTY_HOWTO (R_MIPS16_GOT16),
|
| 776 |
|
|
|
| 777 |
|
|
/* A placeholder for MIPS16 16 bit call through global offset table. */
|
| 778 |
|
|
EMPTY_HOWTO (R_MIPS16_CALL16),
|
| 779 |
|
|
|
| 780 |
|
|
/* MIPS16 high 16 bits of symbol value. */
|
| 781 |
|
|
HOWTO (R_MIPS16_HI16, /* type */
|
| 782 |
|
|
16, /* rightshift */
|
| 783 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 784 |
|
|
16, /* bitsize */
|
| 785 |
|
|
FALSE, /* pc_relative */
|
| 786 |
|
|
0, /* bitpos */
|
| 787 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 788 |
|
|
_bfd_mips_elf_hi16_reloc, /* special_function */
|
| 789 |
|
|
"R_MIPS16_HI16", /* name */
|
| 790 |
|
|
TRUE, /* partial_inplace */
|
| 791 |
|
|
0x0000ffff, /* src_mask */
|
| 792 |
|
|
0x0000ffff, /* dst_mask */
|
| 793 |
|
|
FALSE), /* pcrel_offset */
|
| 794 |
|
|
|
| 795 |
|
|
/* MIPS16 low 16 bits of symbol value. */
|
| 796 |
|
|
HOWTO (R_MIPS16_LO16, /* type */
|
| 797 |
|
|
0, /* rightshift */
|
| 798 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 799 |
|
|
16, /* bitsize */
|
| 800 |
|
|
FALSE, /* pc_relative */
|
| 801 |
|
|
0, /* bitpos */
|
| 802 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 803 |
|
|
_bfd_mips_elf_lo16_reloc, /* special_function */
|
| 804 |
|
|
"R_MIPS16_LO16", /* name */
|
| 805 |
|
|
TRUE, /* partial_inplace */
|
| 806 |
|
|
0x0000ffff, /* src_mask */
|
| 807 |
|
|
0x0000ffff, /* dst_mask */
|
| 808 |
|
|
FALSE), /* pcrel_offset */
|
| 809 |
|
|
};
|
| 810 |
|
|
|
| 811 |
|
|
/* 16 bit offset for pc-relative branches. */
|
| 812 |
|
|
static reloc_howto_type elf_mips_gnu_rel16_s2 =
|
| 813 |
|
|
HOWTO (R_MIPS_GNU_REL16_S2, /* type */
|
| 814 |
|
|
2, /* rightshift */
|
| 815 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 816 |
|
|
16, /* bitsize */
|
| 817 |
|
|
TRUE, /* pc_relative */
|
| 818 |
|
|
0, /* bitpos */
|
| 819 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 820 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 821 |
|
|
"R_MIPS_GNU_REL16_S2", /* name */
|
| 822 |
|
|
TRUE, /* partial_inplace */
|
| 823 |
|
|
0xffff, /* src_mask */
|
| 824 |
|
|
0xffff, /* dst_mask */
|
| 825 |
|
|
TRUE); /* pcrel_offset */
|
| 826 |
|
|
|
| 827 |
|
|
/* 32 bit pc-relative. This was a GNU extension used by embedded-PIC.
|
| 828 |
|
|
It was co-opted by mips-linux for exception-handling data. It is no
|
| 829 |
|
|
longer used, but should continue to be supported by the linker for
|
| 830 |
|
|
backward compatibility. (GCC stopped using it in May, 2004.) */
|
| 831 |
|
|
static reloc_howto_type elf_mips_gnu_pcrel32 =
|
| 832 |
|
|
HOWTO (R_MIPS_PC32, /* type */
|
| 833 |
|
|
0, /* rightshift */
|
| 834 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 835 |
|
|
32, /* bitsize */
|
| 836 |
|
|
TRUE, /* pc_relative */
|
| 837 |
|
|
0, /* bitpos */
|
| 838 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 839 |
|
|
_bfd_mips_elf_generic_reloc, /* special_function */
|
| 840 |
|
|
"R_MIPS_PC32", /* name */
|
| 841 |
|
|
TRUE, /* partial_inplace */
|
| 842 |
|
|
0xffffffff, /* src_mask */
|
| 843 |
|
|
0xffffffff, /* dst_mask */
|
| 844 |
|
|
TRUE); /* pcrel_offset */
|
| 845 |
|
|
|
| 846 |
|
|
/* GNU extension to record C++ vtable hierarchy */
|
| 847 |
|
|
static reloc_howto_type elf_mips_gnu_vtinherit_howto =
|
| 848 |
|
|
HOWTO (R_MIPS_GNU_VTINHERIT, /* type */
|
| 849 |
|
|
0, /* rightshift */
|
| 850 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 851 |
|
|
0, /* bitsize */
|
| 852 |
|
|
FALSE, /* pc_relative */
|
| 853 |
|
|
0, /* bitpos */
|
| 854 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 855 |
|
|
NULL, /* special_function */
|
| 856 |
|
|
"R_MIPS_GNU_VTINHERIT", /* name */
|
| 857 |
|
|
FALSE, /* partial_inplace */
|
| 858 |
|
|
0, /* src_mask */
|
| 859 |
|
|
0, /* dst_mask */
|
| 860 |
|
|
FALSE); /* pcrel_offset */
|
| 861 |
|
|
|
| 862 |
|
|
/* GNU extension to record C++ vtable member usage */
|
| 863 |
|
|
static reloc_howto_type elf_mips_gnu_vtentry_howto =
|
| 864 |
|
|
HOWTO (R_MIPS_GNU_VTENTRY, /* type */
|
| 865 |
|
|
0, /* rightshift */
|
| 866 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 867 |
|
|
0, /* bitsize */
|
| 868 |
|
|
FALSE, /* pc_relative */
|
| 869 |
|
|
0, /* bitpos */
|
| 870 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 871 |
|
|
_bfd_elf_rel_vtable_reloc_fn, /* special_function */
|
| 872 |
|
|
"R_MIPS_GNU_VTENTRY", /* name */
|
| 873 |
|
|
FALSE, /* partial_inplace */
|
| 874 |
|
|
0, /* src_mask */
|
| 875 |
|
|
0, /* dst_mask */
|
| 876 |
|
|
FALSE); /* pcrel_offset */
|
| 877 |
|
|
|
| 878 |
|
|
/* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
|
| 879 |
|
|
dangerous relocation. */
|
| 880 |
|
|
|
| 881 |
|
|
static bfd_boolean
|
| 882 |
|
|
mips_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
|
| 883 |
|
|
{
|
| 884 |
|
|
unsigned int count;
|
| 885 |
|
|
asymbol **sym;
|
| 886 |
|
|
unsigned int i;
|
| 887 |
|
|
|
| 888 |
|
|
/* If we've already figured out what GP will be, just return it. */
|
| 889 |
|
|
*pgp = _bfd_get_gp_value (output_bfd);
|
| 890 |
|
|
if (*pgp)
|
| 891 |
|
|
return TRUE;
|
| 892 |
|
|
|
| 893 |
|
|
count = bfd_get_symcount (output_bfd);
|
| 894 |
|
|
sym = bfd_get_outsymbols (output_bfd);
|
| 895 |
|
|
|
| 896 |
|
|
/* The linker script will have created a symbol named `_gp' with the
|
| 897 |
|
|
appropriate value. */
|
| 898 |
|
|
if (sym == NULL)
|
| 899 |
|
|
i = count;
|
| 900 |
|
|
else
|
| 901 |
|
|
{
|
| 902 |
|
|
for (i = 0; i < count; i++, sym++)
|
| 903 |
|
|
{
|
| 904 |
|
|
register const char *name;
|
| 905 |
|
|
|
| 906 |
|
|
name = bfd_asymbol_name (*sym);
|
| 907 |
|
|
if (*name == '_' && strcmp (name, "_gp") == 0)
|
| 908 |
|
|
{
|
| 909 |
|
|
*pgp = bfd_asymbol_value (*sym);
|
| 910 |
|
|
_bfd_set_gp_value (output_bfd, *pgp);
|
| 911 |
|
|
break;
|
| 912 |
|
|
}
|
| 913 |
|
|
}
|
| 914 |
|
|
}
|
| 915 |
|
|
|
| 916 |
|
|
if (i >= count)
|
| 917 |
|
|
{
|
| 918 |
|
|
/* Only get the error once. */
|
| 919 |
|
|
*pgp = 4;
|
| 920 |
|
|
_bfd_set_gp_value (output_bfd, *pgp);
|
| 921 |
|
|
return FALSE;
|
| 922 |
|
|
}
|
| 923 |
|
|
|
| 924 |
|
|
return TRUE;
|
| 925 |
|
|
}
|
| 926 |
|
|
|
| 927 |
|
|
/* We have to figure out the gp value, so that we can adjust the
|
| 928 |
|
|
symbol value correctly. We look up the symbol _gp in the output
|
| 929 |
|
|
BFD. If we can't find it, we're stuck. We cache it in the ELF
|
| 930 |
|
|
target data. We don't need to adjust the symbol value for an
|
| 931 |
|
|
external symbol if we are producing relocatable output. */
|
| 932 |
|
|
|
| 933 |
|
|
static bfd_reloc_status_type
|
| 934 |
|
|
mips_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
|
| 935 |
|
|
char **error_message, bfd_vma *pgp)
|
| 936 |
|
|
{
|
| 937 |
|
|
if (bfd_is_und_section (symbol->section)
|
| 938 |
|
|
&& ! relocatable)
|
| 939 |
|
|
{
|
| 940 |
|
|
*pgp = 0;
|
| 941 |
|
|
return bfd_reloc_undefined;
|
| 942 |
|
|
}
|
| 943 |
|
|
|
| 944 |
|
|
*pgp = _bfd_get_gp_value (output_bfd);
|
| 945 |
|
|
if (*pgp == 0
|
| 946 |
|
|
&& (! relocatable
|
| 947 |
|
|
|| (symbol->flags & BSF_SECTION_SYM) != 0))
|
| 948 |
|
|
{
|
| 949 |
|
|
if (relocatable)
|
| 950 |
|
|
{
|
| 951 |
|
|
/* Make up a value. */
|
| 952 |
|
|
*pgp = symbol->section->output_section->vma + 0x4000;
|
| 953 |
|
|
_bfd_set_gp_value (output_bfd, *pgp);
|
| 954 |
|
|
}
|
| 955 |
|
|
else if (!mips_elf_assign_gp (output_bfd, pgp))
|
| 956 |
|
|
{
|
| 957 |
|
|
*error_message =
|
| 958 |
|
|
(char *) _("GP relative relocation when _gp not defined");
|
| 959 |
|
|
return bfd_reloc_dangerous;
|
| 960 |
|
|
}
|
| 961 |
|
|
}
|
| 962 |
|
|
|
| 963 |
|
|
return bfd_reloc_ok;
|
| 964 |
|
|
}
|
| 965 |
|
|
|
| 966 |
|
|
/* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
|
| 967 |
|
|
become the offset from the gp register. This function also handles
|
| 968 |
|
|
R_MIPS_LITERAL relocations, although those can be handled more
|
| 969 |
|
|
cleverly because the entries in the .lit8 and .lit4 sections can be
|
| 970 |
|
|
merged. */
|
| 971 |
|
|
|
| 972 |
|
|
bfd_reloc_status_type
|
| 973 |
|
|
_bfd_mips_elf32_gprel16_reloc (bfd *abfd, arelent *reloc_entry,
|
| 974 |
|
|
asymbol *symbol, void *data,
|
| 975 |
|
|
asection *input_section, bfd *output_bfd,
|
| 976 |
|
|
char **error_message)
|
| 977 |
|
|
{
|
| 978 |
|
|
bfd_boolean relocatable;
|
| 979 |
|
|
bfd_reloc_status_type ret;
|
| 980 |
|
|
bfd_vma gp;
|
| 981 |
|
|
|
| 982 |
|
|
/* R_MIPS_LITERAL relocations are defined for local symbols only. */
|
| 983 |
|
|
if (reloc_entry->howto->type == R_MIPS_LITERAL
|
| 984 |
|
|
&& output_bfd != NULL
|
| 985 |
|
|
&& (symbol->flags & BSF_SECTION_SYM) == 0
|
| 986 |
|
|
&& (symbol->flags & BSF_LOCAL) != 0)
|
| 987 |
|
|
{
|
| 988 |
|
|
*error_message = (char *)
|
| 989 |
|
|
_("literal relocation occurs for an external symbol");
|
| 990 |
|
|
return bfd_reloc_outofrange;
|
| 991 |
|
|
}
|
| 992 |
|
|
|
| 993 |
|
|
if (output_bfd != NULL)
|
| 994 |
|
|
relocatable = TRUE;
|
| 995 |
|
|
else
|
| 996 |
|
|
{
|
| 997 |
|
|
relocatable = FALSE;
|
| 998 |
|
|
output_bfd = symbol->section->output_section->owner;
|
| 999 |
|
|
}
|
| 1000 |
|
|
|
| 1001 |
|
|
ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message,
|
| 1002 |
|
|
&gp);
|
| 1003 |
|
|
if (ret != bfd_reloc_ok)
|
| 1004 |
|
|
return ret;
|
| 1005 |
|
|
|
| 1006 |
|
|
return _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
|
| 1007 |
|
|
input_section, relocatable,
|
| 1008 |
|
|
data, gp);
|
| 1009 |
|
|
}
|
| 1010 |
|
|
|
| 1011 |
|
|
/* Do a R_MIPS_GPREL32 relocation. This is a 32 bit value which must
|
| 1012 |
|
|
become the offset from the gp register. */
|
| 1013 |
|
|
|
| 1014 |
|
|
static bfd_reloc_status_type
|
| 1015 |
|
|
mips_elf_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
|
| 1016 |
|
|
void *data, asection *input_section, bfd *output_bfd,
|
| 1017 |
|
|
char **error_message)
|
| 1018 |
|
|
{
|
| 1019 |
|
|
bfd_boolean relocatable;
|
| 1020 |
|
|
bfd_reloc_status_type ret;
|
| 1021 |
|
|
bfd_vma gp;
|
| 1022 |
|
|
|
| 1023 |
|
|
/* R_MIPS_GPREL32 relocations are defined for local symbols only. */
|
| 1024 |
|
|
if (output_bfd != NULL
|
| 1025 |
|
|
&& (symbol->flags & BSF_SECTION_SYM) == 0
|
| 1026 |
|
|
&& (symbol->flags & BSF_LOCAL) != 0)
|
| 1027 |
|
|
{
|
| 1028 |
|
|
*error_message = (char *)
|
| 1029 |
|
|
_("32bits gp relative relocation occurs for an external symbol");
|
| 1030 |
|
|
return bfd_reloc_outofrange;
|
| 1031 |
|
|
}
|
| 1032 |
|
|
|
| 1033 |
|
|
if (output_bfd != NULL)
|
| 1034 |
|
|
relocatable = TRUE;
|
| 1035 |
|
|
else
|
| 1036 |
|
|
{
|
| 1037 |
|
|
relocatable = FALSE;
|
| 1038 |
|
|
output_bfd = symbol->section->output_section->owner;
|
| 1039 |
|
|
}
|
| 1040 |
|
|
|
| 1041 |
|
|
ret = mips_elf_final_gp (output_bfd, symbol, relocatable,
|
| 1042 |
|
|
error_message, &gp);
|
| 1043 |
|
|
if (ret != bfd_reloc_ok)
|
| 1044 |
|
|
return ret;
|
| 1045 |
|
|
|
| 1046 |
|
|
return gprel32_with_gp (abfd, symbol, reloc_entry, input_section,
|
| 1047 |
|
|
relocatable, data, gp);
|
| 1048 |
|
|
}
|
| 1049 |
|
|
|
| 1050 |
|
|
static bfd_reloc_status_type
|
| 1051 |
|
|
gprel32_with_gp (bfd *abfd, asymbol *symbol, arelent *reloc_entry,
|
| 1052 |
|
|
asection *input_section, bfd_boolean relocatable,
|
| 1053 |
|
|
void *data, bfd_vma gp)
|
| 1054 |
|
|
{
|
| 1055 |
|
|
bfd_vma relocation;
|
| 1056 |
|
|
bfd_vma val;
|
| 1057 |
|
|
|
| 1058 |
|
|
if (bfd_is_com_section (symbol->section))
|
| 1059 |
|
|
relocation = 0;
|
| 1060 |
|
|
else
|
| 1061 |
|
|
relocation = symbol->value;
|
| 1062 |
|
|
|
| 1063 |
|
|
relocation += symbol->section->output_section->vma;
|
| 1064 |
|
|
relocation += symbol->section->output_offset;
|
| 1065 |
|
|
|
| 1066 |
|
|
if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
|
| 1067 |
|
|
return bfd_reloc_outofrange;
|
| 1068 |
|
|
|
| 1069 |
|
|
/* Set val to the offset into the section or symbol. */
|
| 1070 |
|
|
val = reloc_entry->addend;
|
| 1071 |
|
|
|
| 1072 |
|
|
if (reloc_entry->howto->partial_inplace)
|
| 1073 |
|
|
val += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
|
| 1074 |
|
|
|
| 1075 |
|
|
/* Adjust val for the final section location and GP value. If we
|
| 1076 |
|
|
are producing relocatable output, we don't want to do this for
|
| 1077 |
|
|
an external symbol. */
|
| 1078 |
|
|
if (! relocatable
|
| 1079 |
|
|
|| (symbol->flags & BSF_SECTION_SYM) != 0)
|
| 1080 |
|
|
val += relocation - gp;
|
| 1081 |
|
|
|
| 1082 |
|
|
if (reloc_entry->howto->partial_inplace)
|
| 1083 |
|
|
bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address);
|
| 1084 |
|
|
else
|
| 1085 |
|
|
reloc_entry->addend = val;
|
| 1086 |
|
|
|
| 1087 |
|
|
if (relocatable)
|
| 1088 |
|
|
reloc_entry->address += input_section->output_offset;
|
| 1089 |
|
|
|
| 1090 |
|
|
return bfd_reloc_ok;
|
| 1091 |
|
|
}
|
| 1092 |
|
|
|
| 1093 |
|
|
/* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are
|
| 1094 |
|
|
generated when addresses are 64 bits. The upper 32 bits are a simple
|
| 1095 |
|
|
sign extension. */
|
| 1096 |
|
|
|
| 1097 |
|
|
static bfd_reloc_status_type
|
| 1098 |
|
|
mips32_64bit_reloc (bfd *abfd, arelent *reloc_entry,
|
| 1099 |
|
|
asymbol *symbol ATTRIBUTE_UNUSED,
|
| 1100 |
|
|
void *data, asection *input_section,
|
| 1101 |
|
|
bfd *output_bfd, char **error_message)
|
| 1102 |
|
|
{
|
| 1103 |
|
|
bfd_reloc_status_type r;
|
| 1104 |
|
|
arelent reloc32;
|
| 1105 |
|
|
unsigned long val;
|
| 1106 |
|
|
bfd_size_type addr;
|
| 1107 |
|
|
|
| 1108 |
|
|
/* Do a normal 32 bit relocation on the lower 32 bits. */
|
| 1109 |
|
|
reloc32 = *reloc_entry;
|
| 1110 |
|
|
if (bfd_big_endian (abfd))
|
| 1111 |
|
|
reloc32.address += 4;
|
| 1112 |
|
|
reloc32.howto = &elf_mips_howto_table_rel[R_MIPS_32];
|
| 1113 |
|
|
r = bfd_perform_relocation (abfd, &reloc32, data, input_section,
|
| 1114 |
|
|
output_bfd, error_message);
|
| 1115 |
|
|
|
| 1116 |
|
|
/* Sign extend into the upper 32 bits. */
|
| 1117 |
|
|
val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address);
|
| 1118 |
|
|
if ((val & 0x80000000) != 0)
|
| 1119 |
|
|
val = 0xffffffff;
|
| 1120 |
|
|
else
|
| 1121 |
|
|
val = 0;
|
| 1122 |
|
|
addr = reloc_entry->address;
|
| 1123 |
|
|
if (bfd_little_endian (abfd))
|
| 1124 |
|
|
addr += 4;
|
| 1125 |
|
|
bfd_put_32 (abfd, val, (bfd_byte *) data + addr);
|
| 1126 |
|
|
|
| 1127 |
|
|
return r;
|
| 1128 |
|
|
}
|
| 1129 |
|
|
|
| 1130 |
|
|
/* Handle a mips16 GP relative reloc. */
|
| 1131 |
|
|
|
| 1132 |
|
|
static bfd_reloc_status_type
|
| 1133 |
|
|
mips16_gprel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
|
| 1134 |
|
|
void *data, asection *input_section, bfd *output_bfd,
|
| 1135 |
|
|
char **error_message)
|
| 1136 |
|
|
{
|
| 1137 |
|
|
bfd_boolean relocatable;
|
| 1138 |
|
|
bfd_reloc_status_type ret;
|
| 1139 |
|
|
bfd_byte *location;
|
| 1140 |
|
|
bfd_vma gp;
|
| 1141 |
|
|
|
| 1142 |
|
|
/* If we're relocating, and this is an external symbol, we don't want
|
| 1143 |
|
|
to change anything. */
|
| 1144 |
|
|
if (output_bfd != NULL
|
| 1145 |
|
|
&& (symbol->flags & BSF_SECTION_SYM) == 0
|
| 1146 |
|
|
&& (symbol->flags & BSF_LOCAL) != 0)
|
| 1147 |
|
|
{
|
| 1148 |
|
|
reloc_entry->address += input_section->output_offset;
|
| 1149 |
|
|
return bfd_reloc_ok;
|
| 1150 |
|
|
}
|
| 1151 |
|
|
|
| 1152 |
|
|
if (output_bfd != NULL)
|
| 1153 |
|
|
relocatable = TRUE;
|
| 1154 |
|
|
else
|
| 1155 |
|
|
{
|
| 1156 |
|
|
relocatable = FALSE;
|
| 1157 |
|
|
output_bfd = symbol->section->output_section->owner;
|
| 1158 |
|
|
}
|
| 1159 |
|
|
|
| 1160 |
|
|
ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message,
|
| 1161 |
|
|
&gp);
|
| 1162 |
|
|
if (ret != bfd_reloc_ok)
|
| 1163 |
|
|
return ret;
|
| 1164 |
|
|
|
| 1165 |
|
|
location = (bfd_byte *) data + reloc_entry->address;
|
| 1166 |
|
|
_bfd_mips16_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
|
| 1167 |
|
|
location);
|
| 1168 |
|
|
ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
|
| 1169 |
|
|
input_section, relocatable,
|
| 1170 |
|
|
data, gp);
|
| 1171 |
|
|
_bfd_mips16_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
|
| 1172 |
|
|
location);
|
| 1173 |
|
|
|
| 1174 |
|
|
return ret;
|
| 1175 |
|
|
}
|
| 1176 |
|
|
|
| 1177 |
|
|
/* A mapping from BFD reloc types to MIPS ELF reloc types. */
|
| 1178 |
|
|
|
| 1179 |
|
|
struct elf_reloc_map {
|
| 1180 |
|
|
bfd_reloc_code_real_type bfd_val;
|
| 1181 |
|
|
enum elf_mips_reloc_type elf_val;
|
| 1182 |
|
|
};
|
| 1183 |
|
|
|
| 1184 |
|
|
static const struct elf_reloc_map mips_reloc_map[] =
|
| 1185 |
|
|
{
|
| 1186 |
|
|
{ BFD_RELOC_NONE, R_MIPS_NONE },
|
| 1187 |
|
|
{ BFD_RELOC_16, R_MIPS_16 },
|
| 1188 |
|
|
{ BFD_RELOC_32, R_MIPS_32 },
|
| 1189 |
|
|
/* There is no BFD reloc for R_MIPS_REL32. */
|
| 1190 |
|
|
{ BFD_RELOC_64, R_MIPS_64 },
|
| 1191 |
|
|
{ BFD_RELOC_MIPS_JMP, R_MIPS_26 },
|
| 1192 |
|
|
{ BFD_RELOC_HI16_S, R_MIPS_HI16 },
|
| 1193 |
|
|
{ BFD_RELOC_LO16, R_MIPS_LO16 },
|
| 1194 |
|
|
{ BFD_RELOC_GPREL16, R_MIPS_GPREL16 },
|
| 1195 |
|
|
{ BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
|
| 1196 |
|
|
{ BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
|
| 1197 |
|
|
{ BFD_RELOC_16_PCREL_S2, R_MIPS_PC16 },
|
| 1198 |
|
|
{ BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
|
| 1199 |
|
|
{ BFD_RELOC_GPREL32, R_MIPS_GPREL32 },
|
| 1200 |
|
|
{ BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
|
| 1201 |
|
|
{ BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
|
| 1202 |
|
|
{ BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
|
| 1203 |
|
|
{ BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 },
|
| 1204 |
|
|
{ BFD_RELOC_MIPS_SUB, R_MIPS_SUB },
|
| 1205 |
|
|
{ BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE },
|
| 1206 |
|
|
{ BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST },
|
| 1207 |
|
|
{ BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP },
|
| 1208 |
|
|
{ BFD_RELOC_MIPS_TLS_DTPMOD32, R_MIPS_TLS_DTPMOD32 },
|
| 1209 |
|
|
{ BFD_RELOC_MIPS_TLS_DTPREL32, R_MIPS_TLS_DTPREL32 },
|
| 1210 |
|
|
{ BFD_RELOC_MIPS_TLS_DTPMOD64, R_MIPS_TLS_DTPMOD64 },
|
| 1211 |
|
|
{ BFD_RELOC_MIPS_TLS_DTPREL64, R_MIPS_TLS_DTPREL64 },
|
| 1212 |
|
|
{ BFD_RELOC_MIPS_TLS_GD, R_MIPS_TLS_GD },
|
| 1213 |
|
|
{ BFD_RELOC_MIPS_TLS_LDM, R_MIPS_TLS_LDM },
|
| 1214 |
|
|
{ BFD_RELOC_MIPS_TLS_DTPREL_HI16, R_MIPS_TLS_DTPREL_HI16 },
|
| 1215 |
|
|
{ BFD_RELOC_MIPS_TLS_DTPREL_LO16, R_MIPS_TLS_DTPREL_LO16 },
|
| 1216 |
|
|
{ BFD_RELOC_MIPS_TLS_GOTTPREL, R_MIPS_TLS_GOTTPREL },
|
| 1217 |
|
|
{ BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 },
|
| 1218 |
|
|
{ BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 },
|
| 1219 |
|
|
{ BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 },
|
| 1220 |
|
|
{ BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 }
|
| 1221 |
|
|
};
|
| 1222 |
|
|
|
| 1223 |
|
|
static const struct elf_reloc_map mips16_reloc_map[] =
|
| 1224 |
|
|
{
|
| 1225 |
|
|
{ BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min },
|
| 1226 |
|
|
{ BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min },
|
| 1227 |
|
|
{ BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min },
|
| 1228 |
|
|
{ BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min },
|
| 1229 |
|
|
};
|
| 1230 |
|
|
|
| 1231 |
|
|
/* Given a BFD reloc type, return a howto structure. */
|
| 1232 |
|
|
|
| 1233 |
|
|
static reloc_howto_type *
|
| 1234 |
|
|
bfd_elf32_bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
|
| 1235 |
|
|
{
|
| 1236 |
|
|
unsigned int i;
|
| 1237 |
|
|
reloc_howto_type *howto_table = elf_mips_howto_table_rel;
|
| 1238 |
|
|
reloc_howto_type *howto16_table = elf_mips16_howto_table_rel;
|
| 1239 |
|
|
|
| 1240 |
|
|
for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map);
|
| 1241 |
|
|
i++)
|
| 1242 |
|
|
{
|
| 1243 |
|
|
if (mips_reloc_map[i].bfd_val == code)
|
| 1244 |
|
|
return &howto_table[(int) mips_reloc_map[i].elf_val];
|
| 1245 |
|
|
}
|
| 1246 |
|
|
|
| 1247 |
|
|
for (i = 0; i < sizeof (mips16_reloc_map) / sizeof (struct elf_reloc_map);
|
| 1248 |
|
|
i++)
|
| 1249 |
|
|
{
|
| 1250 |
|
|
if (mips16_reloc_map[i].bfd_val == code)
|
| 1251 |
|
|
return &howto16_table[(int) mips16_reloc_map[i].elf_val];
|
| 1252 |
|
|
}
|
| 1253 |
|
|
|
| 1254 |
|
|
switch (code)
|
| 1255 |
|
|
{
|
| 1256 |
|
|
default:
|
| 1257 |
|
|
bfd_set_error (bfd_error_bad_value);
|
| 1258 |
|
|
return NULL;
|
| 1259 |
|
|
|
| 1260 |
|
|
case BFD_RELOC_CTOR:
|
| 1261 |
|
|
/* We need to handle BFD_RELOC_CTOR specially.
|
| 1262 |
|
|
Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the
|
| 1263 |
|
|
size of addresses of the ABI. */
|
| 1264 |
|
|
if ((elf_elfheader (abfd)->e_flags & (E_MIPS_ABI_O64
|
| 1265 |
|
|
| E_MIPS_ABI_EABI64)) != 0)
|
| 1266 |
|
|
return &elf_mips_ctor64_howto;
|
| 1267 |
|
|
else
|
| 1268 |
|
|
return &howto_table[(int) R_MIPS_32];
|
| 1269 |
|
|
|
| 1270 |
|
|
case BFD_RELOC_VTABLE_INHERIT:
|
| 1271 |
|
|
return &elf_mips_gnu_vtinherit_howto;
|
| 1272 |
|
|
case BFD_RELOC_VTABLE_ENTRY:
|
| 1273 |
|
|
return &elf_mips_gnu_vtentry_howto;
|
| 1274 |
|
|
case BFD_RELOC_32_PCREL:
|
| 1275 |
|
|
return &elf_mips_gnu_pcrel32;
|
| 1276 |
|
|
}
|
| 1277 |
|
|
}
|
| 1278 |
|
|
|
| 1279 |
|
|
static reloc_howto_type *
|
| 1280 |
|
|
bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
| 1281 |
|
|
const char *r_name)
|
| 1282 |
|
|
{
|
| 1283 |
|
|
unsigned int i;
|
| 1284 |
|
|
|
| 1285 |
|
|
for (i = 0;
|
| 1286 |
|
|
i < (sizeof (elf_mips_howto_table_rel)
|
| 1287 |
|
|
/ sizeof (elf_mips_howto_table_rel[0]));
|
| 1288 |
|
|
i++)
|
| 1289 |
|
|
if (elf_mips_howto_table_rel[i].name != NULL
|
| 1290 |
|
|
&& strcasecmp (elf_mips_howto_table_rel[i].name, r_name) == 0)
|
| 1291 |
|
|
return &elf_mips_howto_table_rel[i];
|
| 1292 |
|
|
|
| 1293 |
|
|
for (i = 0;
|
| 1294 |
|
|
i < (sizeof (elf_mips16_howto_table_rel)
|
| 1295 |
|
|
/ sizeof (elf_mips16_howto_table_rel[0]));
|
| 1296 |
|
|
i++)
|
| 1297 |
|
|
if (elf_mips16_howto_table_rel[i].name != NULL
|
| 1298 |
|
|
&& strcasecmp (elf_mips16_howto_table_rel[i].name, r_name) == 0)
|
| 1299 |
|
|
return &elf_mips16_howto_table_rel[i];
|
| 1300 |
|
|
|
| 1301 |
|
|
if (strcasecmp (elf_mips_gnu_pcrel32.name, r_name) == 0)
|
| 1302 |
|
|
return &elf_mips_gnu_pcrel32;
|
| 1303 |
|
|
if (strcasecmp (elf_mips_gnu_rel16_s2.name, r_name) == 0)
|
| 1304 |
|
|
return &elf_mips_gnu_rel16_s2;
|
| 1305 |
|
|
if (strcasecmp (elf_mips_gnu_vtinherit_howto.name, r_name) == 0)
|
| 1306 |
|
|
return &elf_mips_gnu_vtinherit_howto;
|
| 1307 |
|
|
if (strcasecmp (elf_mips_gnu_vtentry_howto.name, r_name) == 0)
|
| 1308 |
|
|
return &elf_mips_gnu_vtentry_howto;
|
| 1309 |
|
|
|
| 1310 |
|
|
return NULL;
|
| 1311 |
|
|
}
|
| 1312 |
|
|
|
| 1313 |
|
|
/* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
|
| 1314 |
|
|
|
| 1315 |
|
|
static reloc_howto_type *
|
| 1316 |
|
|
mips_elf32_rtype_to_howto (unsigned int r_type,
|
| 1317 |
|
|
bfd_boolean rela_p ATTRIBUTE_UNUSED)
|
| 1318 |
|
|
{
|
| 1319 |
|
|
switch (r_type)
|
| 1320 |
|
|
{
|
| 1321 |
|
|
case R_MIPS_GNU_VTINHERIT:
|
| 1322 |
|
|
return &elf_mips_gnu_vtinherit_howto;
|
| 1323 |
|
|
case R_MIPS_GNU_VTENTRY:
|
| 1324 |
|
|
return &elf_mips_gnu_vtentry_howto;
|
| 1325 |
|
|
case R_MIPS_GNU_REL16_S2:
|
| 1326 |
|
|
return &elf_mips_gnu_rel16_s2;
|
| 1327 |
|
|
case R_MIPS_PC32:
|
| 1328 |
|
|
return &elf_mips_gnu_pcrel32;
|
| 1329 |
|
|
default:
|
| 1330 |
|
|
if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max)
|
| 1331 |
|
|
return &elf_mips16_howto_table_rel[r_type - R_MIPS16_min];
|
| 1332 |
|
|
BFD_ASSERT (r_type < (unsigned int) R_MIPS_max);
|
| 1333 |
|
|
return &elf_mips_howto_table_rel[r_type];
|
| 1334 |
|
|
}
|
| 1335 |
|
|
}
|
| 1336 |
|
|
|
| 1337 |
|
|
/* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
|
| 1338 |
|
|
|
| 1339 |
|
|
static void
|
| 1340 |
|
|
mips_info_to_howto_rel (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
|
| 1341 |
|
|
{
|
| 1342 |
|
|
const struct elf_backend_data *bed;
|
| 1343 |
|
|
unsigned int r_type;
|
| 1344 |
|
|
|
| 1345 |
|
|
r_type = ELF32_R_TYPE (dst->r_info);
|
| 1346 |
|
|
bed = get_elf_backend_data (abfd);
|
| 1347 |
|
|
cache_ptr->howto = bed->elf_backend_mips_rtype_to_howto (r_type, FALSE);
|
| 1348 |
|
|
|
| 1349 |
|
|
/* The addend for a GPREL16 or LITERAL relocation comes from the GP
|
| 1350 |
|
|
value for the object file. We get the addend now, rather than
|
| 1351 |
|
|
when we do the relocation, because the symbol manipulations done
|
| 1352 |
|
|
by the linker may cause us to lose track of the input BFD. */
|
| 1353 |
|
|
if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0
|
| 1354 |
|
|
&& (r_type == (unsigned int) R_MIPS_GPREL16
|
| 1355 |
|
|
|| r_type == (unsigned int) R_MIPS_LITERAL))
|
| 1356 |
|
|
cache_ptr->addend = elf_gp (abfd);
|
| 1357 |
|
|
}
|
| 1358 |
|
|
|
| 1359 |
|
|
/* Given a MIPS Elf_Internal_Rela, fill in an arelent structure. */
|
| 1360 |
|
|
|
| 1361 |
|
|
static void
|
| 1362 |
|
|
mips_info_to_howto_rela (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
|
| 1363 |
|
|
{
|
| 1364 |
|
|
mips_info_to_howto_rel (abfd, cache_ptr, dst);
|
| 1365 |
|
|
|
| 1366 |
|
|
/* If we ever need to do any extra processing with dst->r_addend
|
| 1367 |
|
|
(the field omitted in an Elf_Internal_Rel) we can do it here. */
|
| 1368 |
|
|
}
|
| 1369 |
|
|
|
| 1370 |
|
|
/* Determine whether a symbol is global for the purposes of splitting
|
| 1371 |
|
|
the symbol table into global symbols and local symbols. At least
|
| 1372 |
|
|
on Irix 5, this split must be between section symbols and all other
|
| 1373 |
|
|
symbols. On most ELF targets the split is between static symbols
|
| 1374 |
|
|
and externally visible symbols. */
|
| 1375 |
|
|
|
| 1376 |
|
|
static bfd_boolean
|
| 1377 |
|
|
mips_elf_sym_is_global (bfd *abfd ATTRIBUTE_UNUSED, asymbol *sym)
|
| 1378 |
|
|
{
|
| 1379 |
|
|
if (SGI_COMPAT (abfd))
|
| 1380 |
|
|
return (sym->flags & BSF_SECTION_SYM) == 0;
|
| 1381 |
|
|
else
|
| 1382 |
|
|
return ((sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0
|
| 1383 |
|
|
|| bfd_is_und_section (bfd_get_section (sym))
|
| 1384 |
|
|
|| bfd_is_com_section (bfd_get_section (sym)));
|
| 1385 |
|
|
}
|
| 1386 |
|
|
|
| 1387 |
|
|
/* Set the right machine number for a MIPS ELF file. */
|
| 1388 |
|
|
|
| 1389 |
|
|
static bfd_boolean
|
| 1390 |
|
|
mips_elf32_object_p (bfd *abfd)
|
| 1391 |
|
|
{
|
| 1392 |
|
|
unsigned long mach;
|
| 1393 |
|
|
|
| 1394 |
|
|
/* Irix 5 and 6 are broken. Object file symbol tables are not always
|
| 1395 |
|
|
sorted correctly such that local symbols precede global symbols,
|
| 1396 |
|
|
and the sh_info field in the symbol table is not always right. */
|
| 1397 |
|
|
if (SGI_COMPAT (abfd))
|
| 1398 |
|
|
elf_bad_symtab (abfd) = TRUE;
|
| 1399 |
|
|
|
| 1400 |
|
|
if (ABI_N32_P (abfd))
|
| 1401 |
|
|
return FALSE;
|
| 1402 |
|
|
|
| 1403 |
|
|
mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags);
|
| 1404 |
|
|
bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach);
|
| 1405 |
|
|
|
| 1406 |
|
|
return TRUE;
|
| 1407 |
|
|
}
|
| 1408 |
|
|
|
| 1409 |
|
|
/* MIPS ELF local labels start with '$', not 'L'. */
|
| 1410 |
|
|
|
| 1411 |
|
|
static bfd_boolean
|
| 1412 |
|
|
mips_elf_is_local_label_name (bfd *abfd, const char *name)
|
| 1413 |
|
|
{
|
| 1414 |
|
|
if (name[0] == '$')
|
| 1415 |
|
|
return TRUE;
|
| 1416 |
|
|
|
| 1417 |
|
|
/* On Irix 6, the labels go back to starting with '.', so we accept
|
| 1418 |
|
|
the generic ELF local label syntax as well. */
|
| 1419 |
|
|
return _bfd_elf_is_local_label_name (abfd, name);
|
| 1420 |
|
|
}
|
| 1421 |
|
|
|
| 1422 |
|
|
/* Support for core dump NOTE sections. */
|
| 1423 |
|
|
static bfd_boolean
|
| 1424 |
|
|
elf32_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
|
| 1425 |
|
|
{
|
| 1426 |
|
|
int offset;
|
| 1427 |
|
|
unsigned int size;
|
| 1428 |
|
|
|
| 1429 |
|
|
switch (note->descsz)
|
| 1430 |
|
|
{
|
| 1431 |
|
|
default:
|
| 1432 |
|
|
return FALSE;
|
| 1433 |
|
|
|
| 1434 |
|
|
case 256: /* Linux/MIPS */
|
| 1435 |
|
|
/* pr_cursig */
|
| 1436 |
|
|
elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
|
| 1437 |
|
|
|
| 1438 |
|
|
/* pr_pid */
|
| 1439 |
|
|
elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
|
| 1440 |
|
|
|
| 1441 |
|
|
/* pr_reg */
|
| 1442 |
|
|
offset = 72;
|
| 1443 |
|
|
size = 180;
|
| 1444 |
|
|
|
| 1445 |
|
|
break;
|
| 1446 |
|
|
}
|
| 1447 |
|
|
|
| 1448 |
|
|
/* Make a ".reg/999" section. */
|
| 1449 |
|
|
return _bfd_elfcore_make_pseudosection (abfd, ".reg",
|
| 1450 |
|
|
size, note->descpos + offset);
|
| 1451 |
|
|
}
|
| 1452 |
|
|
|
| 1453 |
|
|
static bfd_boolean
|
| 1454 |
|
|
elf32_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
|
| 1455 |
|
|
{
|
| 1456 |
|
|
switch (note->descsz)
|
| 1457 |
|
|
{
|
| 1458 |
|
|
default:
|
| 1459 |
|
|
return FALSE;
|
| 1460 |
|
|
|
| 1461 |
|
|
case 128: /* Linux/MIPS elf_prpsinfo */
|
| 1462 |
|
|
elf_tdata (abfd)->core_program
|
| 1463 |
|
|
= _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
|
| 1464 |
|
|
elf_tdata (abfd)->core_command
|
| 1465 |
|
|
= _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
|
| 1466 |
|
|
}
|
| 1467 |
|
|
|
| 1468 |
|
|
/* Note that for some reason, a spurious space is tacked
|
| 1469 |
|
|
onto the end of the args in some (at least one anyway)
|
| 1470 |
|
|
implementations, so strip it off if it exists. */
|
| 1471 |
|
|
|
| 1472 |
|
|
{
|
| 1473 |
|
|
char *command = elf_tdata (abfd)->core_command;
|
| 1474 |
|
|
int n = strlen (command);
|
| 1475 |
|
|
|
| 1476 |
|
|
if (0 < n && command[n - 1] == ' ')
|
| 1477 |
|
|
command[n - 1] = '\0';
|
| 1478 |
|
|
}
|
| 1479 |
|
|
|
| 1480 |
|
|
return TRUE;
|
| 1481 |
|
|
}
|
| 1482 |
|
|
|
| 1483 |
|
|
/* Depending on the target vector we generate some version of Irix
|
| 1484 |
|
|
executables or "normal" MIPS ELF ABI executables. */
|
| 1485 |
|
|
static irix_compat_t
|
| 1486 |
|
|
elf32_mips_irix_compat (bfd *abfd)
|
| 1487 |
|
|
{
|
| 1488 |
|
|
if ((abfd->xvec == &bfd_elf32_bigmips_vec)
|
| 1489 |
|
|
|| (abfd->xvec == &bfd_elf32_littlemips_vec))
|
| 1490 |
|
|
return ict_irix5;
|
| 1491 |
|
|
else
|
| 1492 |
|
|
return ict_none;
|
| 1493 |
|
|
}
|
| 1494 |
|
|
|
| 1495 |
|
|
/* ECOFF swapping routines. These are used when dealing with the
|
| 1496 |
|
|
.mdebug section, which is in the ECOFF debugging format. */
|
| 1497 |
|
|
static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
|
| 1498 |
|
|
/* Symbol table magic number. */
|
| 1499 |
|
|
magicSym,
|
| 1500 |
|
|
/* Alignment of debugging information. E.g., 4. */
|
| 1501 |
|
|
4,
|
| 1502 |
|
|
/* Sizes of external symbolic information. */
|
| 1503 |
|
|
sizeof (struct hdr_ext),
|
| 1504 |
|
|
sizeof (struct dnr_ext),
|
| 1505 |
|
|
sizeof (struct pdr_ext),
|
| 1506 |
|
|
sizeof (struct sym_ext),
|
| 1507 |
|
|
sizeof (struct opt_ext),
|
| 1508 |
|
|
sizeof (struct fdr_ext),
|
| 1509 |
|
|
sizeof (struct rfd_ext),
|
| 1510 |
|
|
sizeof (struct ext_ext),
|
| 1511 |
|
|
/* Functions to swap in external symbolic data. */
|
| 1512 |
|
|
ecoff_swap_hdr_in,
|
| 1513 |
|
|
ecoff_swap_dnr_in,
|
| 1514 |
|
|
ecoff_swap_pdr_in,
|
| 1515 |
|
|
ecoff_swap_sym_in,
|
| 1516 |
|
|
ecoff_swap_opt_in,
|
| 1517 |
|
|
ecoff_swap_fdr_in,
|
| 1518 |
|
|
ecoff_swap_rfd_in,
|
| 1519 |
|
|
ecoff_swap_ext_in,
|
| 1520 |
|
|
_bfd_ecoff_swap_tir_in,
|
| 1521 |
|
|
_bfd_ecoff_swap_rndx_in,
|
| 1522 |
|
|
/* Functions to swap out external symbolic data. */
|
| 1523 |
|
|
ecoff_swap_hdr_out,
|
| 1524 |
|
|
ecoff_swap_dnr_out,
|
| 1525 |
|
|
ecoff_swap_pdr_out,
|
| 1526 |
|
|
ecoff_swap_sym_out,
|
| 1527 |
|
|
ecoff_swap_opt_out,
|
| 1528 |
|
|
ecoff_swap_fdr_out,
|
| 1529 |
|
|
ecoff_swap_rfd_out,
|
| 1530 |
|
|
ecoff_swap_ext_out,
|
| 1531 |
|
|
_bfd_ecoff_swap_tir_out,
|
| 1532 |
|
|
_bfd_ecoff_swap_rndx_out,
|
| 1533 |
|
|
/* Function to read in symbolic data. */
|
| 1534 |
|
|
_bfd_mips_elf_read_ecoff_info
|
| 1535 |
|
|
};
|
| 1536 |
|
|
|
| 1537 |
|
|
#define ELF_ARCH bfd_arch_mips
|
| 1538 |
|
|
#define ELF_MACHINE_CODE EM_MIPS
|
| 1539 |
|
|
|
| 1540 |
|
|
#define elf_backend_collect TRUE
|
| 1541 |
|
|
#define elf_backend_type_change_ok TRUE
|
| 1542 |
|
|
#define elf_backend_can_gc_sections TRUE
|
| 1543 |
|
|
#define elf_info_to_howto mips_info_to_howto_rela
|
| 1544 |
|
|
#define elf_info_to_howto_rel mips_info_to_howto_rel
|
| 1545 |
|
|
#define elf_backend_sym_is_global mips_elf_sym_is_global
|
| 1546 |
|
|
#define elf_backend_object_p mips_elf32_object_p
|
| 1547 |
|
|
#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
|
| 1548 |
|
|
#define elf_backend_section_processing _bfd_mips_elf_section_processing
|
| 1549 |
|
|
#define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
|
| 1550 |
|
|
#define elf_backend_fake_sections _bfd_mips_elf_fake_sections
|
| 1551 |
|
|
#define elf_backend_section_from_bfd_section \
|
| 1552 |
|
|
_bfd_mips_elf_section_from_bfd_section
|
| 1553 |
|
|
#define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
|
| 1554 |
|
|
#define elf_backend_link_output_symbol_hook \
|
| 1555 |
|
|
_bfd_mips_elf_link_output_symbol_hook
|
| 1556 |
|
|
#define elf_backend_create_dynamic_sections \
|
| 1557 |
|
|
_bfd_mips_elf_create_dynamic_sections
|
| 1558 |
|
|
#define elf_backend_check_relocs _bfd_mips_elf_check_relocs
|
| 1559 |
|
|
#define elf_backend_merge_symbol_attribute \
|
| 1560 |
|
|
_bfd_mips_elf_merge_symbol_attribute
|
| 1561 |
|
|
#define elf_backend_get_target_dtag _bfd_mips_elf_get_target_dtag
|
| 1562 |
|
|
#define elf_backend_adjust_dynamic_symbol \
|
| 1563 |
|
|
_bfd_mips_elf_adjust_dynamic_symbol
|
| 1564 |
|
|
#define elf_backend_always_size_sections \
|
| 1565 |
|
|
_bfd_mips_elf_always_size_sections
|
| 1566 |
|
|
#define elf_backend_size_dynamic_sections \
|
| 1567 |
|
|
_bfd_mips_elf_size_dynamic_sections
|
| 1568 |
|
|
#define elf_backend_init_index_section _bfd_elf_init_1_index_section
|
| 1569 |
|
|
#define elf_backend_relocate_section _bfd_mips_elf_relocate_section
|
| 1570 |
|
|
#define elf_backend_finish_dynamic_symbol \
|
| 1571 |
|
|
_bfd_mips_elf_finish_dynamic_symbol
|
| 1572 |
|
|
#define elf_backend_finish_dynamic_sections \
|
| 1573 |
|
|
_bfd_mips_elf_finish_dynamic_sections
|
| 1574 |
|
|
#define elf_backend_final_write_processing \
|
| 1575 |
|
|
_bfd_mips_elf_final_write_processing
|
| 1576 |
|
|
#define elf_backend_additional_program_headers \
|
| 1577 |
|
|
_bfd_mips_elf_additional_program_headers
|
| 1578 |
|
|
#define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
|
| 1579 |
|
|
#define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
|
| 1580 |
|
|
#define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
|
| 1581 |
|
|
#define elf_backend_copy_indirect_symbol \
|
| 1582 |
|
|
_bfd_mips_elf_copy_indirect_symbol
|
| 1583 |
|
|
#define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol
|
| 1584 |
|
|
#define elf_backend_grok_prstatus elf32_mips_grok_prstatus
|
| 1585 |
|
|
#define elf_backend_grok_psinfo elf32_mips_grok_psinfo
|
| 1586 |
|
|
#define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
|
| 1587 |
|
|
|
| 1588 |
|
|
#define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
|
| 1589 |
|
|
#define elf_backend_may_use_rel_p 1
|
| 1590 |
|
|
#define elf_backend_may_use_rela_p 0
|
| 1591 |
|
|
#define elf_backend_default_use_rela_p 0
|
| 1592 |
|
|
#define elf_backend_sign_extend_vma TRUE
|
| 1593 |
|
|
|
| 1594 |
|
|
#define elf_backend_discard_info _bfd_mips_elf_discard_info
|
| 1595 |
|
|
#define elf_backend_ignore_discarded_relocs \
|
| 1596 |
|
|
_bfd_mips_elf_ignore_discarded_relocs
|
| 1597 |
|
|
#define elf_backend_mips_irix_compat elf32_mips_irix_compat
|
| 1598 |
|
|
#define elf_backend_mips_rtype_to_howto mips_elf32_rtype_to_howto
|
| 1599 |
|
|
#define bfd_elf32_bfd_is_local_label_name \
|
| 1600 |
|
|
mips_elf_is_local_label_name
|
| 1601 |
|
|
#define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
|
| 1602 |
|
|
#define bfd_elf32_find_inliner_info _bfd_mips_elf_find_inliner_info
|
| 1603 |
|
|
#define bfd_elf32_new_section_hook _bfd_mips_elf_new_section_hook
|
| 1604 |
|
|
#define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
|
| 1605 |
|
|
#define bfd_elf32_bfd_get_relocated_section_contents \
|
| 1606 |
|
|
_bfd_elf_mips_get_relocated_section_contents
|
| 1607 |
|
|
#define bfd_elf32_bfd_link_hash_table_create \
|
| 1608 |
|
|
_bfd_mips_elf_link_hash_table_create
|
| 1609 |
|
|
#define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
|
| 1610 |
|
|
#define bfd_elf32_bfd_merge_private_bfd_data \
|
| 1611 |
|
|
_bfd_mips_elf_merge_private_bfd_data
|
| 1612 |
|
|
#define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
|
| 1613 |
|
|
#define bfd_elf32_bfd_print_private_bfd_data \
|
| 1614 |
|
|
_bfd_mips_elf_print_private_bfd_data
|
| 1615 |
|
|
|
| 1616 |
|
|
/* Support for SGI-ish mips targets. */
|
| 1617 |
|
|
#define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
|
| 1618 |
|
|
#define TARGET_LITTLE_NAME "elf32-littlemips"
|
| 1619 |
|
|
#define TARGET_BIG_SYM bfd_elf32_bigmips_vec
|
| 1620 |
|
|
#define TARGET_BIG_NAME "elf32-bigmips"
|
| 1621 |
|
|
|
| 1622 |
|
|
/* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
|
| 1623 |
|
|
a value of 0x1000, and we are compatible. */
|
| 1624 |
|
|
#define ELF_MAXPAGESIZE 0x1000
|
| 1625 |
|
|
#define ELF_COMMONPAGESIZE 0x1000
|
| 1626 |
|
|
|
| 1627 |
|
|
#include "elf32-target.h"
|
| 1628 |
|
|
|
| 1629 |
|
|
/* Support for traditional mips targets. */
|
| 1630 |
|
|
#undef TARGET_LITTLE_SYM
|
| 1631 |
|
|
#undef TARGET_LITTLE_NAME
|
| 1632 |
|
|
#undef TARGET_BIG_SYM
|
| 1633 |
|
|
#undef TARGET_BIG_NAME
|
| 1634 |
|
|
|
| 1635 |
|
|
#undef ELF_MAXPAGESIZE
|
| 1636 |
|
|
#undef ELF_COMMONPAGESIZE
|
| 1637 |
|
|
|
| 1638 |
|
|
#define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec
|
| 1639 |
|
|
#define TARGET_LITTLE_NAME "elf32-tradlittlemips"
|
| 1640 |
|
|
#define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec
|
| 1641 |
|
|
#define TARGET_BIG_NAME "elf32-tradbigmips"
|
| 1642 |
|
|
|
| 1643 |
|
|
/* The MIPS ABI says at Page 5-1:
|
| 1644 |
|
|
Virtual addresses and file offsets for MIPS segments are congruent
|
| 1645 |
|
|
modulo 64 KByte (0x10000) or larger powers of 2. Because 64 KBytes
|
| 1646 |
|
|
is the maximum page size, the files are suitable for paging
|
| 1647 |
|
|
regardless of physical page size. */
|
| 1648 |
|
|
#define ELF_MAXPAGESIZE 0x10000
|
| 1649 |
|
|
#define ELF_COMMONPAGESIZE 0x1000
|
| 1650 |
|
|
#define elf32_bed elf32_tradbed
|
| 1651 |
|
|
|
| 1652 |
|
|
/* Include the target file again for this target. */
|
| 1653 |
|
|
#include "elf32-target.h"
|
| 1654 |
|
|
|
| 1655 |
|
|
|
| 1656 |
|
|
/* Specific to VxWorks. */
|
| 1657 |
|
|
static reloc_howto_type mips_vxworks_copy_howto_rela =
|
| 1658 |
|
|
HOWTO (R_MIPS_COPY, /* type */
|
| 1659 |
|
|
0, /* rightshift */
|
| 1660 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 1661 |
|
|
32, /* bitsize */
|
| 1662 |
|
|
FALSE, /* pc_relative */
|
| 1663 |
|
|
0, /* bitpos */
|
| 1664 |
|
|
complain_overflow_bitfield, /* complain_on_overflow */
|
| 1665 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 1666 |
|
|
"R_MIPS_COPY", /* name */
|
| 1667 |
|
|
FALSE, /* partial_inplace */
|
| 1668 |
|
|
0x0, /* src_mask */
|
| 1669 |
|
|
0x0, /* dst_mask */
|
| 1670 |
|
|
FALSE); /* pcrel_offset */
|
| 1671 |
|
|
|
| 1672 |
|
|
/* Specific to VxWorks. */
|
| 1673 |
|
|
static reloc_howto_type mips_vxworks_jump_slot_howto_rela =
|
| 1674 |
|
|
HOWTO (R_MIPS_JUMP_SLOT, /* type */
|
| 1675 |
|
|
0, /* rightshift */
|
| 1676 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 1677 |
|
|
32, /* bitsize */
|
| 1678 |
|
|
FALSE, /* pc_relative */
|
| 1679 |
|
|
0, /* bitpos */
|
| 1680 |
|
|
complain_overflow_bitfield, /* complain_on_overflow */
|
| 1681 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 1682 |
|
|
"R_MIPS_JUMP_SLOT", /* name */
|
| 1683 |
|
|
FALSE, /* partial_inplace */
|
| 1684 |
|
|
0x0, /* src_mask */
|
| 1685 |
|
|
0x0, /* dst_mask */
|
| 1686 |
|
|
FALSE); /* pcrel_offset */
|
| 1687 |
|
|
|
| 1688 |
|
|
/* Implement elf_backend_bfd_reloc_type_lookup for VxWorks. */
|
| 1689 |
|
|
|
| 1690 |
|
|
static reloc_howto_type *
|
| 1691 |
|
|
mips_vxworks_bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
|
| 1692 |
|
|
{
|
| 1693 |
|
|
switch (code)
|
| 1694 |
|
|
{
|
| 1695 |
|
|
case BFD_RELOC_MIPS_COPY:
|
| 1696 |
|
|
return &mips_vxworks_copy_howto_rela;
|
| 1697 |
|
|
case BFD_RELOC_MIPS_JUMP_SLOT:
|
| 1698 |
|
|
return &mips_vxworks_jump_slot_howto_rela;
|
| 1699 |
|
|
default:
|
| 1700 |
|
|
return bfd_elf32_bfd_reloc_type_lookup (abfd, code);
|
| 1701 |
|
|
}
|
| 1702 |
|
|
}
|
| 1703 |
|
|
|
| 1704 |
|
|
static reloc_howto_type *
|
| 1705 |
|
|
mips_vxworks_bfd_reloc_name_lookup (bfd *abfd, const char *r_name)
|
| 1706 |
|
|
{
|
| 1707 |
|
|
if (strcasecmp (mips_vxworks_copy_howto_rela.name, r_name) == 0)
|
| 1708 |
|
|
return &mips_vxworks_copy_howto_rela;
|
| 1709 |
|
|
if (strcasecmp (mips_vxworks_jump_slot_howto_rela.name, r_name) == 0)
|
| 1710 |
|
|
return &mips_vxworks_jump_slot_howto_rela;
|
| 1711 |
|
|
|
| 1712 |
|
|
return bfd_elf32_bfd_reloc_name_lookup (abfd, r_name);
|
| 1713 |
|
|
}
|
| 1714 |
|
|
|
| 1715 |
|
|
/* Implement elf_backend_mips_rtype_to_lookup for VxWorks. */
|
| 1716 |
|
|
|
| 1717 |
|
|
static reloc_howto_type *
|
| 1718 |
|
|
mips_vxworks_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p)
|
| 1719 |
|
|
{
|
| 1720 |
|
|
switch (r_type)
|
| 1721 |
|
|
{
|
| 1722 |
|
|
case R_MIPS_COPY:
|
| 1723 |
|
|
return &mips_vxworks_copy_howto_rela;
|
| 1724 |
|
|
case R_MIPS_JUMP_SLOT:
|
| 1725 |
|
|
return &mips_vxworks_jump_slot_howto_rela;
|
| 1726 |
|
|
default:
|
| 1727 |
|
|
return mips_elf32_rtype_to_howto (r_type, rela_p);
|
| 1728 |
|
|
}
|
| 1729 |
|
|
}
|
| 1730 |
|
|
|
| 1731 |
|
|
/* Implement elf_backend_final_write_processing for VxWorks. */
|
| 1732 |
|
|
|
| 1733 |
|
|
static void
|
| 1734 |
|
|
mips_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
|
| 1735 |
|
|
{
|
| 1736 |
|
|
_bfd_mips_elf_final_write_processing (abfd, linker);
|
| 1737 |
|
|
elf_vxworks_final_write_processing (abfd, linker);
|
| 1738 |
|
|
}
|
| 1739 |
|
|
|
| 1740 |
|
|
#undef TARGET_LITTLE_SYM
|
| 1741 |
|
|
#undef TARGET_LITTLE_NAME
|
| 1742 |
|
|
#undef TARGET_BIG_SYM
|
| 1743 |
|
|
#undef TARGET_BIG_NAME
|
| 1744 |
|
|
|
| 1745 |
|
|
#undef ELF_MAXPAGESIZE
|
| 1746 |
|
|
#undef ELF_COMMONPAGESIZE
|
| 1747 |
|
|
|
| 1748 |
|
|
#define TARGET_LITTLE_SYM bfd_elf32_littlemips_vxworks_vec
|
| 1749 |
|
|
#define TARGET_LITTLE_NAME "elf32-littlemips-vxworks"
|
| 1750 |
|
|
#define TARGET_BIG_SYM bfd_elf32_bigmips_vxworks_vec
|
| 1751 |
|
|
#define TARGET_BIG_NAME "elf32-bigmips-vxworks"
|
| 1752 |
|
|
|
| 1753 |
|
|
#undef elf32_bed
|
| 1754 |
|
|
#define elf32_bed elf32_mips_vxworks_bed
|
| 1755 |
|
|
|
| 1756 |
|
|
#define ELF_MAXPAGESIZE 0x1000
|
| 1757 |
|
|
#define ELF_COMMONPAGESIZE 0x1000
|
| 1758 |
|
|
|
| 1759 |
|
|
#undef elf_backend_want_got_plt
|
| 1760 |
|
|
#define elf_backend_want_got_plt 1
|
| 1761 |
|
|
#undef elf_backend_want_plt_sym
|
| 1762 |
|
|
#define elf_backend_want_plt_sym 1
|
| 1763 |
|
|
#undef elf_backend_got_symbol_offset
|
| 1764 |
|
|
#define elf_backend_got_symbol_offset 0
|
| 1765 |
|
|
#undef elf_backend_want_dynbss
|
| 1766 |
|
|
#define elf_backend_want_dynbss 1
|
| 1767 |
|
|
#undef elf_backend_may_use_rel_p
|
| 1768 |
|
|
#define elf_backend_may_use_rel_p 0
|
| 1769 |
|
|
#undef elf_backend_may_use_rela_p
|
| 1770 |
|
|
#define elf_backend_may_use_rela_p 1
|
| 1771 |
|
|
#undef elf_backend_default_use_rela_p
|
| 1772 |
|
|
#define elf_backend_default_use_rela_p 1
|
| 1773 |
|
|
#undef elf_backend_got_header_size
|
| 1774 |
|
|
#define elf_backend_got_header_size (4 * 3)
|
| 1775 |
|
|
#undef elf_backend_plt_readonly
|
| 1776 |
|
|
#define elf_backend_plt_readonly 1
|
| 1777 |
|
|
|
| 1778 |
|
|
#undef bfd_elf32_bfd_reloc_type_lookup
|
| 1779 |
|
|
#define bfd_elf32_bfd_reloc_type_lookup \
|
| 1780 |
|
|
mips_vxworks_bfd_reloc_type_lookup
|
| 1781 |
|
|
#undef bfd_elf32_bfd_reloc_name_lookup
|
| 1782 |
|
|
#define bfd_elf32_bfd_reloc_name_lookup \
|
| 1783 |
|
|
mips_vxworks_bfd_reloc_name_lookup
|
| 1784 |
|
|
#undef elf_backend_mips_rtype_to_howto
|
| 1785 |
|
|
#define elf_backend_mips_rtype_to_howto \
|
| 1786 |
|
|
mips_vxworks_rtype_to_howto
|
| 1787 |
|
|
#undef elf_backend_adjust_dynamic_symbol
|
| 1788 |
|
|
#define elf_backend_adjust_dynamic_symbol \
|
| 1789 |
|
|
_bfd_mips_vxworks_adjust_dynamic_symbol
|
| 1790 |
|
|
#undef elf_backend_finish_dynamic_symbol
|
| 1791 |
|
|
#define elf_backend_finish_dynamic_symbol \
|
| 1792 |
|
|
_bfd_mips_vxworks_finish_dynamic_symbol
|
| 1793 |
|
|
#undef bfd_elf32_bfd_link_hash_table_create
|
| 1794 |
|
|
#define bfd_elf32_bfd_link_hash_table_create \
|
| 1795 |
|
|
_bfd_mips_vxworks_link_hash_table_create
|
| 1796 |
|
|
#undef elf_backend_add_symbol_hook
|
| 1797 |
|
|
#define elf_backend_add_symbol_hook \
|
| 1798 |
|
|
elf_vxworks_add_symbol_hook
|
| 1799 |
|
|
#undef elf_backend_link_output_symbol_hook
|
| 1800 |
|
|
#define elf_backend_link_output_symbol_hook \
|
| 1801 |
|
|
elf_vxworks_link_output_symbol_hook
|
| 1802 |
|
|
#undef elf_backend_emit_relocs
|
| 1803 |
|
|
#define elf_backend_emit_relocs \
|
| 1804 |
|
|
elf_vxworks_emit_relocs
|
| 1805 |
|
|
#undef elf_backend_final_write_processing
|
| 1806 |
|
|
#define elf_backend_final_write_processing \
|
| 1807 |
|
|
mips_vxworks_final_write_processing
|
| 1808 |
|
|
|
| 1809 |
|
|
#undef elf_backend_additional_program_headers
|
| 1810 |
|
|
#undef elf_backend_modify_segment_map
|
| 1811 |
|
|
#undef elf_backend_symbol_processing
|
| 1812 |
|
|
/* NOTE: elf_backend_rela_normal is not defined for MIPS. */
|
| 1813 |
|
|
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#include "elf32-target.h"
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