1 /* SPARC ELF specific backend routines.
2 Copyright (C) 2005-2016 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"
24 struct _bfd_sparc_elf_section_data
26 struct bfd_elf_section_data elf;
27 unsigned int do_relax, reloc_count;
30 #define sec_do_relax(sec) \
31 ((struct _bfd_sparc_elf_section_data *) elf_section_data (sec))->do_relax
32 #define canon_reloc_count(sec) \
33 ((struct _bfd_sparc_elf_section_data *) elf_section_data (sec))->reloc_count
35 struct _bfd_sparc_elf_app_reg
43 /* Sparc ELF linker hash table. */
45 struct _bfd_sparc_elf_link_hash_table
47 struct elf_link_hash_table elf;
49 /* Short-cuts to get to dynamic linker sections. */
55 bfd_signed_vma refcount;
59 /* Small local sym cache. */
60 struct sym_cache sym_cache;
62 /* Used by local STT_GNU_IFUNC symbols. */
63 htab_t loc_hash_table;
64 void *loc_hash_memory;
66 /* True if the target system is VxWorks. */
69 /* The (unloaded but important) .rela.plt.unloaded section, for VxWorks. */
72 void (*put_word) (bfd *, bfd_vma, void *);
73 bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
74 bfd_vma (*r_symndx) (bfd_vma);
75 int (*build_plt_entry) (bfd *, asection *, bfd_vma, bfd_vma, bfd_vma *);
76 const char *dynamic_interpreter;
77 int dynamic_interpreter_size;
78 unsigned int word_align_power;
79 unsigned int align_power_max;
80 unsigned int plt_header_size;
81 unsigned int plt_entry_size;
88 struct _bfd_sparc_elf_app_reg app_regs [4];
91 /* Get the SPARC ELF linker hash table from a link_info structure. */
93 #define _bfd_sparc_elf_hash_table(p) \
94 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
95 == SPARC_ELF_DATA ? ((struct _bfd_sparc_elf_link_hash_table *) ((p)->hash)) : NULL)
97 extern reloc_howto_type *_bfd_sparc_elf_reloc_type_lookup
98 (bfd *, bfd_reloc_code_real_type);
99 extern reloc_howto_type *_bfd_sparc_elf_reloc_name_lookup
100 (bfd *, const char *);
101 extern void _bfd_sparc_elf_info_to_howto
102 (bfd *, arelent *, Elf_Internal_Rela *);
103 extern reloc_howto_type *_bfd_sparc_elf_info_to_howto_ptr
105 extern bfd_boolean _bfd_sparc_elf_mkobject
107 extern struct bfd_link_hash_table *_bfd_sparc_elf_link_hash_table_create
109 extern bfd_boolean _bfd_sparc_elf_create_dynamic_sections
110 (bfd *, struct bfd_link_info *);
111 extern void _bfd_sparc_elf_copy_indirect_symbol
112 (struct bfd_link_info *,
113 struct elf_link_hash_entry *,
114 struct elf_link_hash_entry *);
115 extern bfd_boolean _bfd_sparc_elf_check_relocs
116 (bfd *, struct bfd_link_info *,
117 asection *, const Elf_Internal_Rela *);
118 extern asection *_bfd_sparc_elf_gc_mark_hook
119 (asection *, struct bfd_link_info *,
120 Elf_Internal_Rela *, struct elf_link_hash_entry *,
122 extern bfd_boolean _bfd_sparc_elf_gc_sweep_hook
123 (bfd *, struct bfd_link_info *,
124 asection *, const Elf_Internal_Rela *);
125 extern bfd_boolean _bfd_sparc_elf_adjust_dynamic_symbol
126 (struct bfd_link_info *, struct elf_link_hash_entry *);
127 extern bfd_boolean _bfd_sparc_elf_omit_section_dynsym
128 (bfd *, struct bfd_link_info *, asection *);
129 extern bfd_boolean _bfd_sparc_elf_size_dynamic_sections
130 (bfd *, struct bfd_link_info *);
131 extern bfd_boolean _bfd_sparc_elf_new_section_hook
133 extern bfd_boolean _bfd_sparc_elf_relax_section
134 (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
135 extern bfd_boolean _bfd_sparc_elf_relocate_section
136 (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
137 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
138 extern bfd_boolean _bfd_sparc_elf_finish_dynamic_symbol
139 (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
140 Elf_Internal_Sym *sym);
141 extern bfd_boolean _bfd_sparc_elf_finish_dynamic_sections
142 (bfd *, struct bfd_link_info *);
143 extern bfd_boolean _bfd_sparc_elf_object_p
145 extern bfd_vma _bfd_sparc_elf_plt_sym_val
146 (bfd_vma, const asection *, const arelent *);
147 extern bfd_boolean _bfd_sparc_elf_merge_private_bfd_data