1 /* MIPS ELF specific backend routines.
2 Copyright (C) 2002-2022 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
21 #include "elf/common.h"
22 #include "elf/internal.h"
32 extern bool _bfd_mips_elf_mkobject
34 extern bool _bfd_mips_elf_close_and_cleanup
36 extern bool _bfd_mips_elf_new_section_hook
38 extern void _bfd_mips_elf_symbol_processing
40 extern unsigned int _bfd_mips_elf_eh_frame_address_size
41 (bfd
*, const asection
*);
42 extern bool _bfd_mips_elf_name_local_section_symbols
44 extern bool _bfd_mips_elf_section_processing
45 (bfd
*, Elf_Internal_Shdr
*);
46 extern bool _bfd_mips_elf_section_from_shdr
47 (bfd
*, Elf_Internal_Shdr
*, const char *, int);
48 extern bool _bfd_mips_elf_fake_sections
49 (bfd
*, Elf_Internal_Shdr
*, asection
*);
50 extern bool _bfd_mips_elf_section_from_bfd_section
51 (bfd
*, asection
*, int *);
52 extern bool _bfd_mips_elf_add_symbol_hook
53 (bfd
*, struct bfd_link_info
*, Elf_Internal_Sym
*,
54 const char **, flagword
*, asection
**, bfd_vma
*);
55 extern int _bfd_mips_elf_link_output_symbol_hook
56 (struct bfd_link_info
*, const char *, Elf_Internal_Sym
*,
57 asection
*, struct elf_link_hash_entry
*);
58 extern bool _bfd_mips_elf_create_dynamic_sections
59 (bfd
*, struct bfd_link_info
*);
60 extern bool _bfd_mips_elf_check_relocs
61 (bfd
*, struct bfd_link_info
*, asection
*, const Elf_Internal_Rela
*);
62 extern bool _bfd_mips_elf_adjust_dynamic_symbol
63 (struct bfd_link_info
*, struct elf_link_hash_entry
*);
64 extern bool _bfd_mips_elf_always_size_sections
65 (bfd
*, struct bfd_link_info
*);
66 extern bool _bfd_mips_elf_size_dynamic_sections
67 (bfd
*, struct bfd_link_info
*);
68 extern int _bfd_mips_elf_relocate_section
69 (bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*,
70 Elf_Internal_Rela
*, Elf_Internal_Sym
*, asection
**);
71 extern bool _bfd_mips_elf_finish_dynamic_symbol
72 (bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
74 extern bool _bfd_mips_vxworks_finish_dynamic_symbol
75 (bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
77 extern bool _bfd_mips_elf_finish_dynamic_sections
78 (bfd
*, struct bfd_link_info
*);
79 extern bool _bfd_mips_elf_sort_relocs_p
81 extern void _bfd_mips_final_write_processing
83 extern bool _bfd_mips_elf_final_write_processing
85 extern int _bfd_mips_elf_additional_program_headers
86 (bfd
*, struct bfd_link_info
*);
87 extern bool _bfd_mips_elf_modify_segment_map
88 (bfd
*, struct bfd_link_info
*);
89 extern asection
* _bfd_mips_elf_gc_mark_hook
90 (asection
*, struct bfd_link_info
*, Elf_Internal_Rela
*,
91 struct elf_link_hash_entry
*, Elf_Internal_Sym
*);
92 extern void _bfd_mips_elf_copy_indirect_symbol
93 (struct bfd_link_info
*, struct elf_link_hash_entry
*,
94 struct elf_link_hash_entry
*);
95 extern void _bfd_mips_elf_hide_symbol
96 (struct bfd_link_info
*, struct elf_link_hash_entry
*, bool);
97 extern bool _bfd_mips_elf_ignore_discarded_relocs
99 extern bool _bfd_mips_elf_is_target_special_symbol
100 (bfd
*abfd
, asymbol
*sym
);
101 extern bool _bfd_mips_elf_find_nearest_line
102 (bfd
*, asymbol
**, asection
*, bfd_vma
,
103 const char **, const char **, unsigned int *, unsigned int *);
104 #define _bfd_mips_elf_find_nearest_line_with_alt \
105 _bfd_nosymbols_find_nearest_line_with_alt
106 extern bool _bfd_mips_elf_find_inliner_info
107 (bfd
*, const char **, const char **, unsigned int *);
108 extern bool _bfd_mips_elf_set_section_contents
109 (bfd
*, asection
*, const void *, file_ptr
, bfd_size_type
);
110 extern bfd_byte
*_bfd_elf_mips_get_relocated_section_contents
111 (bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
112 bfd_byte
*, bool, asymbol
**);
113 extern bool _bfd_mips_elf_relax_section
114 (bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
116 extern struct bfd_link_hash_table
*_bfd_mips_elf_link_hash_table_create
118 extern struct bfd_link_hash_table
*_bfd_mips_vxworks_link_hash_table_create
120 extern bool _bfd_mips_elf_final_link
121 (bfd
*, struct bfd_link_info
*);
122 extern bool _bfd_mips_elf_merge_private_bfd_data
123 (bfd
*, struct bfd_link_info
*);
124 extern bool _bfd_mips_elf_set_private_flags
126 extern const char * _bfd_mips_fp_abi_string
128 extern bool _bfd_mips_elf_print_private_bfd_data
130 extern bool _bfd_mips_elf_discard_info
131 (bfd
*, struct elf_reloc_cookie
*, struct bfd_link_info
*);
132 extern bool _bfd_mips_elf_write_section
133 (bfd
*, struct bfd_link_info
*, asection
*, bfd_byte
*);
135 extern bool _bfd_mips_elf_read_ecoff_info
136 (bfd
*, asection
*, struct ecoff_debug_info
*);
137 extern void _bfd_mips_elf_reloc_unshuffle
138 (bfd
*, int, bool, bfd_byte
*);
139 extern void _bfd_mips_elf_reloc_shuffle
140 (bfd
*, int, bool, bfd_byte
*);
141 extern bool _bfd_mips_reloc_offset_in_range
142 (bfd
*, asection
*, arelent
*, enum reloc_check
);
143 extern bfd_reloc_status_type _bfd_mips_elf_gprel16_with_gp
144 (bfd
*, asymbol
*, arelent
*, asection
*, bool, void *, bfd_vma
);
145 extern bfd_reloc_status_type _bfd_mips_elf32_gprel16_reloc
146 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
147 extern bfd_reloc_status_type _bfd_mips_elf_hi16_reloc
148 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
149 extern bfd_reloc_status_type _bfd_mips_elf_got16_reloc
150 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
151 extern bfd_reloc_status_type _bfd_mips_elf_lo16_reloc
152 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
153 extern bfd_reloc_status_type _bfd_mips_elf_generic_reloc
154 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
155 extern unsigned long _bfd_elf_mips_mach
157 extern bfd_vma _bfd_mips_elf_sign_extend
159 extern void _bfd_mips_elf_merge_symbol_attribute
160 (struct elf_link_hash_entry
*, unsigned int, bool, bool);
161 extern char *_bfd_mips_elf_get_target_dtag (bfd_vma
);
162 extern bool _bfd_mips_elf_ignore_undef_symbol
163 (struct elf_link_hash_entry
*);
164 extern void _bfd_mips_elf_use_plts_and_copy_relocs
165 (struct bfd_link_info
*);
166 extern void _bfd_mips_elf_linker_flags
167 (struct bfd_link_info
*, bool, bool, bool);
168 extern void _bfd_mips_elf_compact_branches
169 (struct bfd_link_info
*, bool);
170 extern bool _bfd_mips_elf_init_stubs
171 (struct bfd_link_info
*,
172 asection
*(*) (const char *, asection
*, asection
*));
173 extern bfd_vma _bfd_mips_elf_plt_sym_val
174 (bfd_vma
, const asection
*, const arelent
*rel
);
175 extern long _bfd_mips_elf_get_synthetic_symtab
176 (bfd
*, long, asymbol
**, long, asymbol
**, asymbol
**);
177 extern bool _bfd_mips_elf_gc_mark_extra_sections
178 (struct bfd_link_info
*, elf_gc_mark_hook_fn
);
179 extern bool _bfd_mips_init_file_header
180 (bfd
*abfd
, struct bfd_link_info
*link_info
);
182 extern const struct bfd_elf_special_section _bfd_mips_elf_special_sections
[];
184 extern bool _bfd_mips_elf_common_definition (Elf_Internal_Sym
*);
186 extern int _bfd_mips_elf_compact_eh_encoding (struct bfd_link_info
*);
187 extern int _bfd_mips_elf_cant_unwind_opcode (struct bfd_link_info
*);
189 extern void _bfd_mips_elf_record_xhash_symbol
190 (struct elf_link_hash_entry
*h
, bfd_vma xlat_loc
);
192 /* MIPS ABI flags data access. For the disassembler. */
193 extern struct elf_internal_abiflags_v0
*bfd_mips_elf_get_abiflags (bfd
*);
196 gprel16_reloc_p (unsigned int r_type
)
198 return (r_type
== R_MIPS_GPREL16
199 || r_type
== R_MIPS16_GPREL
200 || r_type
== R_MICROMIPS_GPREL16
201 || r_type
== R_MICROMIPS_GPREL7_S2
);
205 literal_reloc_p (int r_type
)
207 return r_type
== R_MIPS_LITERAL
|| r_type
== R_MICROMIPS_LITERAL
;
210 #define elf_backend_common_definition _bfd_mips_elf_common_definition
211 #define elf_backend_name_local_section_symbols \
212 _bfd_mips_elf_name_local_section_symbols
213 #define elf_backend_special_sections _bfd_mips_elf_special_sections
214 #define elf_backend_eh_frame_address_size _bfd_mips_elf_eh_frame_address_size
215 #define elf_backend_merge_symbol_attribute _bfd_mips_elf_merge_symbol_attribute
216 #define elf_backend_ignore_undef_symbol _bfd_mips_elf_ignore_undef_symbol
217 #define elf_backend_init_file_header _bfd_mips_init_file_header
218 #define elf_backend_compact_eh_encoding _bfd_mips_elf_compact_eh_encoding
219 #define elf_backend_cant_unwind_opcode _bfd_mips_elf_cant_unwind_opcode
220 #define elf_backend_record_xhash_symbol _bfd_mips_elf_record_xhash_symbol
221 #define elf_backend_always_renumber_dynsyms true