1 /* MIPS ELF specific backend routines.
2 Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
3 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
22 #include "elf/common.h"
23 #include "elf/internal.h"
26 extern bfd_boolean _bfd_mips_elf_mkobject
28 extern bfd_boolean _bfd_mips_elf_new_section_hook
30 extern void _bfd_mips_elf_symbol_processing
32 extern unsigned int _bfd_mips_elf_eh_frame_address_size
34 extern bfd_boolean _bfd_mips_elf_name_local_section_symbols
36 extern bfd_boolean _bfd_mips_elf_section_processing
37 (bfd
*, Elf_Internal_Shdr
*);
38 extern bfd_boolean _bfd_mips_elf_section_from_shdr
39 (bfd
*, Elf_Internal_Shdr
*, const char *, int);
40 extern bfd_boolean _bfd_mips_elf_fake_sections
41 (bfd
*, Elf_Internal_Shdr
*, asection
*);
42 extern bfd_boolean _bfd_mips_elf_section_from_bfd_section
43 (bfd
*, asection
*, int *);
44 extern bfd_boolean _bfd_mips_elf_add_symbol_hook
45 (bfd
*, struct bfd_link_info
*, Elf_Internal_Sym
*,
46 const char **, flagword
*, asection
**, bfd_vma
*);
47 extern int _bfd_mips_elf_link_output_symbol_hook
48 (struct bfd_link_info
*, const char *, Elf_Internal_Sym
*,
49 asection
*, struct elf_link_hash_entry
*);
50 extern bfd_boolean _bfd_mips_elf_create_dynamic_sections
51 (bfd
*, struct bfd_link_info
*);
52 extern bfd_boolean _bfd_mips_elf_check_relocs
53 (bfd
*, struct bfd_link_info
*, asection
*, const Elf_Internal_Rela
*);
54 extern bfd_boolean _bfd_mips_elf_adjust_dynamic_symbol
55 (struct bfd_link_info
*, struct elf_link_hash_entry
*);
56 extern bfd_boolean _bfd_mips_elf_always_size_sections
57 (bfd
*, struct bfd_link_info
*);
58 extern bfd_boolean _bfd_mips_elf_size_dynamic_sections
59 (bfd
*, struct bfd_link_info
*);
60 extern bfd_boolean _bfd_mips_elf_relocate_section
61 (bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*,
62 Elf_Internal_Rela
*, Elf_Internal_Sym
*, asection
**);
63 extern bfd_boolean _bfd_mips_elf_finish_dynamic_symbol
64 (bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
66 extern bfd_boolean _bfd_mips_vxworks_finish_dynamic_symbol
67 (bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
69 extern bfd_boolean _bfd_mips_elf_finish_dynamic_sections
70 (bfd
*, struct bfd_link_info
*);
71 extern void _bfd_mips_elf_final_write_processing
73 extern int _bfd_mips_elf_additional_program_headers
74 (bfd
*, struct bfd_link_info
*);
75 extern bfd_boolean _bfd_mips_elf_modify_segment_map
76 (bfd
*, struct bfd_link_info
*);
77 extern asection
* _bfd_mips_elf_gc_mark_hook
78 (asection
*, struct bfd_link_info
*, Elf_Internal_Rela
*,
79 struct elf_link_hash_entry
*, Elf_Internal_Sym
*);
80 extern bfd_boolean _bfd_mips_elf_gc_sweep_hook
81 (bfd
*, struct bfd_link_info
*, asection
*, const Elf_Internal_Rela
*);
82 extern void _bfd_mips_elf_copy_indirect_symbol
83 (struct bfd_link_info
*, struct elf_link_hash_entry
*,
84 struct elf_link_hash_entry
*);
85 extern bfd_boolean _bfd_mips_elf_ignore_discarded_relocs
87 extern bfd_boolean _bfd_mips_elf_is_target_special_symbol
88 (bfd
*abfd
, asymbol
*sym
);
89 extern bfd_boolean _bfd_mips_elf_find_nearest_line
90 (bfd
*, asection
*, asymbol
**, bfd_vma
, const char **,
91 const char **, unsigned int *);
92 extern bfd_boolean _bfd_mips_elf_find_inliner_info
93 (bfd
*, const char **, const char **, unsigned int *);
94 extern bfd_boolean _bfd_mips_elf_set_section_contents
95 (bfd
*, asection
*, const void *, file_ptr
, bfd_size_type
);
96 extern bfd_byte
*_bfd_elf_mips_get_relocated_section_contents
97 (bfd
*, struct bfd_link_info
*, struct bfd_link_order
*,
98 bfd_byte
*, bfd_boolean
, asymbol
**);
99 extern bfd_boolean _bfd_mips_elf_relax_section
100 (bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
102 extern struct bfd_link_hash_table
*_bfd_mips_elf_link_hash_table_create
104 extern struct bfd_link_hash_table
*_bfd_mips_vxworks_link_hash_table_create
106 extern bfd_boolean _bfd_mips_elf_final_link
107 (bfd
*, struct bfd_link_info
*);
108 extern bfd_boolean _bfd_mips_elf_merge_private_bfd_data
110 extern bfd_boolean _bfd_mips_elf_set_private_flags
112 extern bfd_boolean _bfd_mips_elf_print_private_bfd_data
114 extern bfd_boolean _bfd_mips_elf_discard_info
115 (bfd
*, struct elf_reloc_cookie
*, struct bfd_link_info
*);
116 extern bfd_boolean _bfd_mips_elf_write_section
117 (bfd
*, struct bfd_link_info
*, asection
*, bfd_byte
*);
119 extern bfd_boolean _bfd_mips_elf_read_ecoff_info
120 (bfd
*, asection
*, struct ecoff_debug_info
*);
121 extern void _bfd_mips_elf_reloc_unshuffle
122 (bfd
*, int, bfd_boolean
, bfd_byte
*);
123 extern void _bfd_mips_elf_reloc_shuffle
124 (bfd
*, int, bfd_boolean
, bfd_byte
*);
125 extern bfd_reloc_status_type _bfd_mips_elf_gprel16_with_gp
126 (bfd
*, asymbol
*, arelent
*, asection
*, bfd_boolean
, void *, bfd_vma
);
127 extern bfd_reloc_status_type _bfd_mips_elf32_gprel16_reloc
128 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
129 extern bfd_reloc_status_type _bfd_mips_elf_hi16_reloc
130 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
131 extern bfd_reloc_status_type _bfd_mips_elf_got16_reloc
132 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
133 extern bfd_reloc_status_type _bfd_mips_elf_lo16_reloc
134 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
135 extern bfd_reloc_status_type _bfd_mips_elf_generic_reloc
136 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
137 extern unsigned long _bfd_elf_mips_mach
139 extern bfd_boolean _bfd_mips_relax_section
140 (bfd
*, asection
*, struct bfd_link_info
*, bfd_boolean
*);
141 extern bfd_vma _bfd_mips_elf_sign_extend
143 extern void _bfd_mips_elf_merge_symbol_attribute
144 (struct elf_link_hash_entry
*, const Elf_Internal_Sym
*, bfd_boolean
, bfd_boolean
);
145 extern char *_bfd_mips_elf_get_target_dtag (bfd_vma
);
146 extern bfd_boolean _bfd_mips_elf_ignore_undef_symbol
147 (struct elf_link_hash_entry
*);
148 extern void _bfd_mips_elf_use_plts_and_copy_relocs
149 (struct bfd_link_info
*);
150 extern void _bfd_mips_elf_insn32
151 (struct bfd_link_info
*, bfd_boolean
);
152 extern bfd_boolean _bfd_mips_elf_init_stubs
153 (struct bfd_link_info
*,
154 asection
*(*) (const char *, asection
*, asection
*));
155 extern bfd_vma _bfd_mips_elf_plt_sym_val
156 (bfd_vma
, const asection
*, const arelent
*rel
);
157 extern long _bfd_mips_elf_get_synthetic_symtab
158 (bfd
*, long, asymbol
**, long, asymbol
**, asymbol
**);
159 extern void _bfd_mips_post_process_headers
160 (bfd
*abfd
, struct bfd_link_info
*link_info
);
162 extern const struct bfd_elf_special_section _bfd_mips_elf_special_sections
[];
164 extern bfd_boolean
_bfd_mips_elf_common_definition (Elf_Internal_Sym
*);
166 static inline bfd_boolean
167 gprel16_reloc_p (unsigned int r_type
)
169 return (r_type
== R_MIPS_GPREL16
170 || r_type
== R_MIPS16_GPREL
171 || r_type
== R_MICROMIPS_GPREL16
172 || r_type
== R_MICROMIPS_GPREL7_S2
);
175 static inline bfd_boolean
176 literal_reloc_p (int r_type
)
178 return r_type
== R_MIPS_LITERAL
|| r_type
== R_MICROMIPS_LITERAL
;
181 #define elf_backend_common_definition _bfd_mips_elf_common_definition
182 #define elf_backend_name_local_section_symbols \
183 _bfd_mips_elf_name_local_section_symbols
184 #define elf_backend_special_sections _bfd_mips_elf_special_sections
185 #define elf_backend_eh_frame_address_size _bfd_mips_elf_eh_frame_address_size
186 #define elf_backend_merge_symbol_attribute _bfd_mips_elf_merge_symbol_attribute
187 #define elf_backend_ignore_undef_symbol _bfd_mips_elf_ignore_undef_symbol
188 #define elf_backend_post_process_headers _bfd_mips_post_process_headers