text: /* MIPS ELF specific backend routines.
     Copyright (C) 2002-2017 Free Software Foundation, Inc.
  
     This file is part of BFD, the Binary File Descriptor library.
  
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     MA 02110-1301, USA.  */
  
  #include "elf/common.h"
  #include "elf/internal.h"
  #include "elf/mips.h"
  
  extern bfd_boolean _bfd_mips_elf_mkobject
    (bfd *);
  extern bfd_boolean _bfd_mips_elf_new_section_hook
    (bfd *, asection *);
  extern void _bfd_mips_elf_symbol_processing
    (bfd *, asymbol *);
  extern unsigned int _bfd_mips_elf_eh_frame_address_size
    (bfd *, const asection *);
  extern bfd_boolean _bfd_mips_elf_name_local_section_symbols
    (bfd *);
  extern bfd_boolean _bfd_mips_elf_section_processing
    (bfd *, Elf_Internal_Shdr *);
  extern bfd_boolean _bfd_mips_elf_section_from_shdr
    (bfd *, Elf_Internal_Shdr *, const char *, int);
  extern bfd_boolean _bfd_mips_elf_fake_sections
    (bfd *, Elf_Internal_Shdr *, asection *);
  extern bfd_boolean _bfd_mips_elf_section_from_bfd_section
    (bfd *, asection *, int *);
  extern bfd_boolean _bfd_mips_elf_add_symbol_hook
    (bfd *, struct bfd_link_info *, Elf_Internal_Sym *,
     const char **, flagword *, asection **, bfd_vma *);
  extern int _bfd_mips_elf_link_output_symbol_hook
    (struct bfd_link_info *, const char *, Elf_Internal_Sym *,
     asection *, struct elf_link_hash_entry *);
  extern bfd_boolean _bfd_mips_elf_create_dynamic_sections
    (bfd *, struct bfd_link_info *);
  extern bfd_boolean _bfd_mips_elf_check_relocs
    (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
  extern bfd_boolean _bfd_mips_elf_adjust_dynamic_symbol
    (struct bfd_link_info *, struct elf_link_hash_entry *);
  extern bfd_boolean _bfd_mips_elf_always_size_sections
    (bfd *, struct bfd_link_info *);
  extern bfd_boolean _bfd_mips_elf_size_dynamic_sections
    (bfd *, struct bfd_link_info *);
  extern bfd_boolean _bfd_mips_elf_relocate_section
    (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
     Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
  extern bfd_boolean _bfd_mips_elf_finish_dynamic_symbol
    (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
     Elf_Internal_Sym *);
  extern bfd_boolean _bfd_mips_vxworks_finish_dynamic_symbol
    (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
     Elf_Internal_Sym *);
  extern bfd_boolean _bfd_mips_elf_finish_dynamic_sections
    (bfd *, struct bfd_link_info *);
  extern bfd_boolean _bfd_mips_elf_sort_relocs_p
    (asection *);
  extern void _bfd_mips_elf_final_write_processing
    (bfd *, bfd_boolean);
  extern int _bfd_mips_elf_additional_program_headers
    (bfd *, struct bfd_link_info *);
  extern bfd_boolean _bfd_mips_elf_modify_segment_map
    (bfd *, struct bfd_link_info *);
  extern asection * _bfd_mips_elf_gc_mark_hook
    (asection *, struct bfd_link_info *, Elf_Internal_Rela *,
     struct elf_link_hash_entry *, Elf_Internal_Sym *);
  extern bfd_boolean _bfd_mips_elf_gc_sweep_hook
    (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *);
  extern void _bfd_mips_elf_copy_indirect_symbol
    (struct bfd_link_info *, struct elf_link_hash_entry *,
     struct elf_link_hash_entry *);
  extern bfd_boolean _bfd_mips_elf_ignore_discarded_relocs
    (asection *);
  extern bfd_boolean _bfd_mips_elf_is_target_special_symbol
    (bfd *abfd, asymbol *sym);
  extern bfd_boolean _bfd_mips_elf_find_nearest_line
    (bfd *, asymbol **, asection *, bfd_vma,
     const char **, const char **, unsigned int *, unsigned int *);
  extern bfd_boolean _bfd_mips_elf_find_inliner_info
    (bfd *, const char **, const char **, unsigned int *);
  extern bfd_boolean _bfd_mips_elf_set_section_contents
    (bfd *, asection *, const void *, file_ptr, bfd_size_type);
  extern bfd_byte *_bfd_elf_mips_get_relocated_section_contents
    (bfd *, struct bfd_link_info *, struct bfd_link_order *,
     bfd_byte *, bfd_boolean, asymbol **);
  extern bfd_boolean _bfd_mips_elf_relax_section
    (bfd *abfd, asection *sec, struct bfd_link_info *link_info,
     bfd_boolean *again);
  extern struct bfd_link_hash_table *_bfd_mips_elf_link_hash_table_create
    (bfd *);
  extern struct bfd_link_hash_table *_bfd_mips_vxworks_link_hash_table_create
    (bfd *);
  extern bfd_boolean _bfd_mips_elf_final_link
    (bfd *, struct bfd_link_info *);
  extern bfd_boolean _bfd_mips_elf_merge_private_bfd_data
    (bfd *, struct bfd_link_info *);
  extern bfd_boolean _bfd_mips_elf_set_private_flags
    (bfd *, flagword);
  extern const char * _bfd_mips_fp_abi_string
    (int);
  extern bfd_boolean _bfd_mips_elf_print_private_bfd_data
    (bfd *, void *);
  extern bfd_boolean _bfd_mips_elf_discard_info
    (bfd *, struct elf_reloc_cookie *, struct bfd_link_info *);
  extern bfd_boolean _bfd_mips_elf_write_section
    (bfd *, struct bfd_link_info *, asection *, bfd_byte *);
  
  extern bfd_boolean _bfd_mips_elf_read_ecoff_info
    (bfd *, asection *, struct ecoff_debug_info *);
  extern void _bfd_mips_elf_reloc_unshuffle
    (bfd *, int, bfd_boolean, bfd_byte *);
  extern void _bfd_mips_elf_reloc_shuffle
    (bfd *, int, bfd_boolean, bfd_byte *);
  extern bfd_reloc_status_type _bfd_mips_elf_gprel16_with_gp
    (bfd *, asymbol *, arelent *, asection *, bfd_boolean, void *, bfd_vma);
  extern bfd_reloc_status_type _bfd_mips_elf32_gprel16_reloc
    (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
  extern bfd_reloc_status_type _bfd_mips_elf_hi16_reloc
    (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
  extern bfd_reloc_status_type _bfd_mips_elf_got16_reloc
    (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
  extern bfd_reloc_status_type _bfd_mips_elf_lo16_reloc
    (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
  extern bfd_reloc_status_type _bfd_mips_elf_generic_reloc
    (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
  extern unsigned long _bfd_elf_mips_mach
    (flagword);
  extern bfd_vma _bfd_mips_elf_sign_extend
    (bfd_vma, int);
  extern void _bfd_mips_elf_merge_symbol_attribute
    (struct elf_link_hash_entry *, const Elf_Internal_Sym *, bfd_boolean, bfd_boolean);
  extern char *_bfd_mips_elf_get_target_dtag (bfd_vma);
  extern bfd_boolean _bfd_mips_elf_ignore_undef_symbol
    (struct elf_link_hash_entry *);
  extern void _bfd_mips_elf_use_plts_and_copy_relocs
    (struct bfd_link_info *);
  extern void _bfd_mips_elf_linker_flags
    (struct bfd_link_info *, bfd_boolean, bfd_boolean);
  extern bfd_boolean _bfd_mips_elf_init_stubs
    (struct bfd_link_info *,
     asection *(*) (const char *, asection *, asection *));
  extern bfd_vma _bfd_mips_elf_plt_sym_val
    (bfd_vma, const asection *, const arelent *rel);
  extern long _bfd_mips_elf_get_synthetic_symtab
    (bfd *, long, asymbol **, long, asymbol **, asymbol **);
  extern bfd_boolean _bfd_mips_elf_gc_mark_extra_sections
    (struct bfd_link_info *, elf_gc_mark_hook_fn);
  extern void _bfd_mips_post_process_headers
    (bfd *abfd, struct bfd_link_info *link_info);
  
  extern const struct bfd_elf_special_section _bfd_mips_elf_special_sections [];
  
  extern bfd_boolean _bfd_mips_elf_common_definition (Elf_Internal_Sym *);
  
  extern int _bfd_mips_elf_compact_eh_encoding (struct bfd_link_info *);
  extern int _bfd_mips_elf_cant_unwind_opcode (struct bfd_link_info *);
  
  static inline bfd_boolean
  gprel16_reloc_p (unsigned int r_type)
  {
    return (r_type == R_MIPS_GPREL16
  	  || r_type == R_MIPS16_GPREL
  	  || r_type == R_MICROMIPS_GPREL16
  	  || r_type == R_MICROMIPS_GPREL7_S2);
  }
  
  static inline bfd_boolean
  literal_reloc_p (int r_type)
  {
    return r_type == R_MIPS_LITERAL || r_type == R_MICROMIPS_LITERAL;
  }
  
  #define elf_backend_common_definition   _bfd_mips_elf_common_definition
  #define elf_backend_name_local_section_symbols \
    _bfd_mips_elf_name_local_section_symbols
  #define elf_backend_special_sections _bfd_mips_elf_special_sections
  #define elf_backend_eh_frame_address_size _bfd_mips_elf_eh_frame_address_size
  #define elf_backend_merge_symbol_attribute  _bfd_mips_elf_merge_symbol_attribute
  #define elf_backend_ignore_undef_symbol _bfd_mips_elf_ignore_undef_symbol
  #define elf_backend_post_process_headers _bfd_mips_post_process_headers
  #define elf_backend_compact_eh_encoding _bfd_mips_elf_compact_eh_encoding
  #define elf_backend_cant_unwind_opcode _bfd_mips_elf_cant_unwind_opcode
  #define elf_backend_always_renumber_dynsyms TRUE
  