1 /* MIPS ELF specific backend routines.
2 Copyright (C) 2002-2023 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 #ifndef MIPS_DEFAULT_R6
33 #define MIPS_DEFAULT_R6 0
36 extern bool _bfd_mips_elf_mkobject
38 extern bool _bfd_mips_elf_close_and_cleanup
40 extern bool _bfd_mips_elf_new_section_hook
42 extern void _bfd_mips_elf_symbol_processing
44 extern unsigned int _bfd_mips_elf_eh_frame_address_size
45 (bfd
*, const asection
*);
46 extern bool _bfd_mips_elf_name_local_section_symbols
48 extern bool _bfd_mips_elf_section_processing
49 (bfd
*, Elf_Internal_Shdr
*);
50 extern bool _bfd_mips_elf_section_from_shdr
51 (bfd
*, Elf_Internal_Shdr
*, const char *, int);
52 extern bool _bfd_mips_elf_fake_sections
53 (bfd
*, Elf_Internal_Shdr
*, asection
*);
54 extern bool _bfd_mips_elf_section_from_bfd_section
55 (bfd
*, asection
*, int *);
56 extern bool _bfd_mips_elf_add_symbol_hook
57 (bfd
*, struct bfd_link_info
*, Elf_Internal_Sym
*,
58 const char **, flagword
*, asection
**, bfd_vma
*);
59 extern int _bfd_mips_elf_link_output_symbol_hook
60 (struct bfd_link_info
*, const char *, Elf_Internal_Sym
*,
61 asection
*, struct elf_link_hash_entry
*);
62 extern bool _bfd_mips_elf_create_dynamic_sections
63 (bfd
*, struct bfd_link_info
*);
64 extern bool _bfd_mips_elf_check_relocs
65 (bfd
*, struct bfd_link_info
*, asection
*, const Elf_Internal_Rela
*);
66 extern bool _bfd_mips_elf_adjust_dynamic_symbol
67 (struct bfd_link_info
*, struct elf_link_hash_entry
*);
68 extern bool _bfd_mips_elf_always_size_sections
69 (bfd
*, struct bfd_link_info
*);
70 extern bool _bfd_mips_elf_size_dynamic_sections
71 (bfd
*, struct bfd_link_info
*);
72 extern int _bfd_mips_elf_relocate_section
73 (bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*,
74 Elf_Internal_Rela
*, Elf_Internal_Sym
*, asection
**);
75 extern bool _bfd_mips_elf_finish_dynamic_symbol
76 (bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
78 extern bool _bfd_mips_vxworks_finish_dynamic_symbol
79 (bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
81 extern bool _bfd_mips_elf_finish_dynamic_sections
82 (bfd
*, struct bfd_link_info
*);
83 extern bool _bfd_mips_elf_sort_relocs_p
85 extern void _bfd_mips_final_write_processing
87 extern bool _bfd_mips_elf_final_write_processing
89 extern int _bfd_mips_elf_additional_program_headers
90 (bfd
*, struct bfd_link_info
*);
91 extern bool _bfd_mips_elf_modify_segment_map
92 (bfd
*, struct bfd_link_info
*);
93 extern asection
* _bfd_mips_elf_gc_mark_hook
94 (asection
*, struct bfd_link_info
*, Elf_Internal_Rela
*,
95 struct elf_link_hash_entry
*, Elf_Internal_Sym
*);
96 extern void _bfd_mips_elf_copy_indirect_symbol
97 (struct bfd_link_info
*, struct elf_link_hash_entry
*,
98 struct elf_link_hash_entry
*);
99 extern void _bfd_mips_elf_hide_symbol
100 (struct bfd_link_info
*, struct elf_link_hash_entry
*, bool);
101 extern bool _bfd_mips_elf_ignore_discarded_relocs
103 extern bool _bfd_mips_elf_is_target_special_symbol
104 (bfd
*abfd
, asymbol
*sym
);
105 extern bool _bfd_mips_elf_find_nearest_line
106 (bfd
*, asymbol
**, asection
*, bfd_vma
,
107 const char **, const char **, unsigned int *, unsigned int *);
108 #define _bfd_mips_elf_find_nearest_line_with_alt \
109 _bfd_nosymbols_find_nearest_line_with_alt
110 extern bool _bfd_mips_elf_find_inliner_info
111 (bfd
*, const char **, const char **, unsigned int *);
112 extern bool _bfd_mips_elf_set_section_contents
113 (bfd
*, asection
*, const void *, file_ptr
, bfd_size_type
);
114 extern bfd_byte
*_bfd_elf_mips_get_relocated_section_contents
115 (bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
116 bfd_byte
*, bool, asymbol
**);
117 extern bool _bfd_mips_elf_relax_section
118 (bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
120 extern struct bfd_link_hash_table
*_bfd_mips_elf_link_hash_table_create
122 extern struct bfd_link_hash_table
*_bfd_mips_vxworks_link_hash_table_create
124 extern bool _bfd_mips_elf_final_link
125 (bfd
*, struct bfd_link_info
*);
126 extern bool _bfd_mips_elf_merge_private_bfd_data
127 (bfd
*, struct bfd_link_info
*);
128 extern bool _bfd_mips_elf_set_private_flags
130 extern const char * _bfd_mips_fp_abi_string
132 extern bool _bfd_mips_elf_print_private_bfd_data
134 extern bool _bfd_mips_elf_discard_info
135 (bfd
*, struct elf_reloc_cookie
*, struct bfd_link_info
*);
136 extern bool _bfd_mips_elf_write_section
137 (bfd
*, struct bfd_link_info
*, asection
*, bfd_byte
*);
139 extern bool _bfd_mips_elf_read_ecoff_info
140 (bfd
*, asection
*, struct ecoff_debug_info
*);
141 extern void _bfd_mips_elf_reloc_unshuffle
142 (bfd
*, int, bool, bfd_byte
*);
143 extern void _bfd_mips_elf_reloc_shuffle
144 (bfd
*, int, bool, bfd_byte
*);
145 extern bool _bfd_mips_reloc_offset_in_range
146 (bfd
*, asection
*, arelent
*, enum reloc_check
);
147 extern bfd_reloc_status_type _bfd_mips_elf_gprel16_with_gp
148 (bfd
*, asymbol
*, arelent
*, asection
*, bool, void *, bfd_vma
);
149 extern bfd_reloc_status_type _bfd_mips_elf32_gprel16_reloc
150 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
151 extern bfd_reloc_status_type _bfd_mips_elf_hi16_reloc
152 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
153 extern bfd_reloc_status_type _bfd_mips_elf_got16_reloc
154 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
155 extern bfd_reloc_status_type _bfd_mips_elf_lo16_reloc
156 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
157 extern bfd_reloc_status_type _bfd_mips_elf_generic_reloc
158 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
159 extern unsigned long _bfd_elf_mips_mach
161 extern bfd_vma _bfd_mips_elf_sign_extend
163 extern void _bfd_mips_elf_merge_symbol_attribute
164 (struct elf_link_hash_entry
*, unsigned int, bool, bool);
165 extern char *_bfd_mips_elf_get_target_dtag (bfd_vma
);
166 extern bool _bfd_mips_elf_ignore_undef_symbol
167 (struct elf_link_hash_entry
*);
168 extern void _bfd_mips_elf_use_plts_and_copy_relocs
169 (struct bfd_link_info
*);
170 extern void _bfd_mips_elf_linker_flags
171 (struct bfd_link_info
*, bool, bool, bool);
172 extern void _bfd_mips_elf_compact_branches
173 (struct bfd_link_info
*, bool);
174 extern bool _bfd_mips_elf_init_stubs
175 (struct bfd_link_info
*,
176 asection
*(*) (const char *, asection
*, asection
*));
177 extern bfd_vma _bfd_mips_elf_plt_sym_val
178 (bfd_vma
, const asection
*, const arelent
*rel
);
179 extern long _bfd_mips_elf_get_synthetic_symtab
180 (bfd
*, long, asymbol
**, long, asymbol
**, asymbol
**);
181 extern bool _bfd_mips_elf_gc_mark_extra_sections
182 (struct bfd_link_info
*, elf_gc_mark_hook_fn
);
183 extern bool _bfd_mips_init_file_header
184 (bfd
*abfd
, struct bfd_link_info
*link_info
);
186 extern const struct bfd_elf_special_section _bfd_mips_elf_special_sections
[];
188 extern bool _bfd_mips_elf_common_definition (Elf_Internal_Sym
*);
190 extern int _bfd_mips_elf_compact_eh_encoding (struct bfd_link_info
*);
191 extern int _bfd_mips_elf_cant_unwind_opcode (struct bfd_link_info
*);
193 extern void _bfd_mips_elf_record_xhash_symbol
194 (struct elf_link_hash_entry
*h
, bfd_vma xlat_loc
);
196 /* MIPS ABI flags data access. For the disassembler. */
197 extern struct elf_internal_abiflags_v0
*bfd_mips_elf_get_abiflags (bfd
*);
200 gprel16_reloc_p (unsigned int r_type
)
202 return (r_type
== R_MIPS_GPREL16
203 || r_type
== R_MIPS16_GPREL
204 || r_type
== R_MICROMIPS_GPREL16
205 || r_type
== R_MICROMIPS_GPREL7_S2
);
209 literal_reloc_p (int r_type
)
211 return r_type
== R_MIPS_LITERAL
|| r_type
== R_MICROMIPS_LITERAL
;
214 #define elf_backend_common_definition _bfd_mips_elf_common_definition
215 #define elf_backend_name_local_section_symbols \
216 _bfd_mips_elf_name_local_section_symbols
217 #define elf_backend_special_sections _bfd_mips_elf_special_sections
218 #define elf_backend_eh_frame_address_size _bfd_mips_elf_eh_frame_address_size
219 #define elf_backend_merge_symbol_attribute _bfd_mips_elf_merge_symbol_attribute
220 #define elf_backend_ignore_undef_symbol _bfd_mips_elf_ignore_undef_symbol
221 #define elf_backend_init_file_header _bfd_mips_init_file_header
222 #define elf_backend_compact_eh_encoding _bfd_mips_elf_compact_eh_encoding
223 #define elf_backend_cant_unwind_opcode _bfd_mips_elf_cant_unwind_opcode
224 #define elf_backend_record_xhash_symbol _bfd_mips_elf_record_xhash_symbol
225 #define elf_backend_always_renumber_dynsyms true