| /* MIPS ELF specific backend routines. |
| Copyright (C) 2002-2024 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" |
| |
| enum reloc_check |
| { |
| check_std, |
| check_inplace, |
| check_shuffle |
| }; |
| |
| #ifndef MIPS_DEFAULT_R6 |
| #define MIPS_DEFAULT_R6 0 |
| #endif |
| |
| struct ecoff_debug_info; |
| |
| extern bool _bfd_mips_elf_mkobject |
| (bfd *); |
| extern bool _bfd_mips_elf_free_cached_info |
| (bfd *); |
| extern bool _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 bool _bfd_mips_elf_name_local_section_symbols |
| (bfd *); |
| extern bool _bfd_mips_elf_section_processing |
| (bfd *, Elf_Internal_Shdr *); |
| extern bool _bfd_mips_elf_section_from_shdr |
| (bfd *, Elf_Internal_Shdr *, const char *, int); |
| extern bool _bfd_mips_elf_fake_sections |
| (bfd *, Elf_Internal_Shdr *, asection *); |
| extern bool _bfd_mips_elf_section_from_bfd_section |
| (bfd *, asection *, int *); |
| extern bool _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 bool _bfd_mips_elf_create_dynamic_sections |
| (bfd *, struct bfd_link_info *); |
| extern bool _bfd_mips_elf_check_relocs |
| (bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *); |
| extern bool _bfd_mips_elf_adjust_dynamic_symbol |
| (struct bfd_link_info *, struct elf_link_hash_entry *); |
| extern bool _bfd_mips_elf_late_size_sections |
| (bfd *, struct bfd_link_info *); |
| extern int _bfd_mips_elf_relocate_section |
| (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
| Elf_Internal_Rela *, Elf_Internal_Sym *, asection **); |
| extern bool _bfd_mips_elf_finish_dynamic_symbol |
| (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, |
| Elf_Internal_Sym *); |
| extern bool _bfd_mips_vxworks_finish_dynamic_symbol |
| (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, |
| Elf_Internal_Sym *); |
| extern bool _bfd_mips_elf_finish_dynamic_sections |
| (bfd *, struct bfd_link_info *); |
| extern bool _bfd_mips_elf_sort_relocs_p |
| (asection *); |
| extern void _bfd_mips_final_write_processing |
| (bfd *); |
| extern bool _bfd_mips_elf_final_write_processing |
| (bfd *); |
| extern int _bfd_mips_elf_additional_program_headers |
| (bfd *, struct bfd_link_info *); |
| extern bool _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 void _bfd_mips_elf_copy_indirect_symbol |
| (struct bfd_link_info *, struct elf_link_hash_entry *, |
| struct elf_link_hash_entry *); |
| extern void _bfd_mips_elf_hide_symbol |
| (struct bfd_link_info *, struct elf_link_hash_entry *, bool); |
| extern bool _bfd_mips_elf_ignore_discarded_relocs |
| (asection *); |
| extern bool _bfd_mips_elf_is_target_special_symbol |
| (bfd *abfd, asymbol *sym); |
| extern bool _bfd_mips_elf_find_nearest_line |
| (bfd *, asymbol **, asection *, bfd_vma, |
| const char **, const char **, unsigned int *, unsigned int *); |
| #define _bfd_mips_elf_find_nearest_line_with_alt \ |
| _bfd_nosymbols_find_nearest_line_with_alt |
| extern bool _bfd_mips_elf_find_inliner_info |
| (bfd *, const char **, const char **, unsigned int *); |
| extern bool _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 *, bool, asymbol **); |
| extern bool _bfd_mips_elf_relax_section |
| (bfd *abfd, asection *sec, struct bfd_link_info *link_info, |
| bool *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 bool _bfd_mips_elf_final_link |
| (bfd *, struct bfd_link_info *); |
| extern bool _bfd_mips_elf_merge_private_bfd_data |
| (bfd *, struct bfd_link_info *); |
| extern bool _bfd_mips_elf_set_private_flags |
| (bfd *, flagword); |
| extern const char * _bfd_mips_fp_abi_string |
| (int); |
| extern bool _bfd_mips_elf_print_private_bfd_data |
| (bfd *, void *); |
| extern bool _bfd_mips_elf_discard_info |
| (bfd *, struct elf_reloc_cookie *, struct bfd_link_info *); |
| extern bool _bfd_mips_elf_write_section |
| (bfd *, struct bfd_link_info *, asection *, bfd_byte *); |
| |
| extern bool _bfd_mips_elf_read_ecoff_info |
| (bfd *, asection *, struct ecoff_debug_info *); |
| extern void _bfd_mips_elf_reloc_unshuffle |
| (bfd *, int, bool, bfd_byte *); |
| extern void _bfd_mips_elf_reloc_shuffle |
| (bfd *, int, bool, bfd_byte *); |
| extern bool _bfd_mips_reloc_offset_in_range |
| (bfd *, asection *, arelent *, enum reloc_check); |
| extern bfd_reloc_status_type _bfd_mips_elf_gprel16_with_gp |
| (bfd *, asymbol *, arelent *, asection *, bool, 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 *, unsigned int, bool, bool); |
| extern char *_bfd_mips_elf_get_target_dtag (bfd_vma); |
| extern bool _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 *, bool, bool, bool); |
| extern void _bfd_mips_elf_compact_branches |
| (struct bfd_link_info *, bool); |
| extern bool _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 bool _bfd_mips_elf_gc_mark_extra_sections |
| (struct bfd_link_info *, elf_gc_mark_hook_fn); |
| extern bool _bfd_mips_init_file_header |
| (bfd *abfd, struct bfd_link_info *link_info); |
| |
| extern const struct bfd_elf_special_section _bfd_mips_elf_special_sections []; |
| |
| extern bool _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 *); |
| |
| extern void _bfd_mips_elf_record_xhash_symbol |
| (struct elf_link_hash_entry *h, bfd_vma xlat_loc); |
| |
| /* MIPS ABI flags data access. For the disassembler. */ |
| extern struct elf_internal_abiflags_v0 *bfd_mips_elf_get_abiflags (bfd *); |
| |
| static inline bool |
| 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 bool |
| 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_init_file_header _bfd_mips_init_file_header |
| #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_record_xhash_symbol _bfd_mips_elf_record_xhash_symbol |
| #define elf_backend_always_renumber_dynsyms true |
