1 /* SPARC ELF specific backend routines.
2 Copyright 2005, 2006, 2007, 2009, 2010, 2011
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"
25 struct _bfd_sparc_elf_section_data
27 struct bfd_elf_section_data elf;
28 unsigned int do_relax, reloc_count;
31 #define sec_do_relax(sec) \
32 ((struct _bfd_sparc_elf_section_data *) elf_section_data (sec))->do_relax
33 #define canon_reloc_count(sec) \
34 ((struct _bfd_sparc_elf_section_data *) elf_section_data (sec))->reloc_count
36 struct _bfd_sparc_elf_app_reg
44 /* Sparc ELF linker hash table. */
46 struct _bfd_sparc_elf_link_hash_table
48 struct elf_link_hash_table elf;
50 /* Short-cuts to get to dynamic linker sections. */
56 bfd_signed_vma refcount;
60 /* Small local sym cache. */
61 struct sym_cache sym_cache;
63 /* Used by local STT_GNU_IFUNC symbols. */
64 htab_t loc_hash_table;
65 void *loc_hash_memory;
67 /* True if the target system is VxWorks. */
70 /* The (unloaded but important) .rela.plt.unloaded section, for VxWorks. */
73 void (*put_word) (bfd *, bfd_vma, void *);
74 bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
75 bfd_vma (*r_symndx) (bfd_vma);
76 int (*build_plt_entry) (bfd *, asection *, bfd_vma, bfd_vma, bfd_vma *);
77 const char *dynamic_interpreter;
78 int dynamic_interpreter_size;
79 unsigned int word_align_power;
80 unsigned int align_power_max;
81 unsigned int plt_header_size;
82 unsigned int plt_entry_size;
89 struct _bfd_sparc_elf_app_reg app_regs [4];
92 /* Get the SPARC ELF linker hash table from a link_info structure. */
94 #define _bfd_sparc_elf_hash_table(p) \
95 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
96 == SPARC_ELF_DATA ? ((struct _bfd_sparc_elf_link_hash_table *) ((p)->hash)) : NULL)
98 extern reloc_howto_type *_bfd_sparc_elf_reloc_type_lookup
99 (bfd *, bfd_reloc_code_real_type);
100 extern reloc_howto_type *_bfd_sparc_elf_reloc_name_lookup
101 (bfd *, const char *);
102 extern void _bfd_sparc_elf_info_to_howto
103 (bfd *, arelent *, Elf_Internal_Rela *);
104 extern reloc_howto_type *_bfd_sparc_elf_info_to_howto_ptr
106 extern bfd_boolean _bfd_sparc_elf_mkobject
108 extern struct bfd_link_hash_table *_bfd_sparc_elf_link_hash_table_create
110 extern void _bfd_sparc_elf_link_hash_table_free
111 (struct bfd_link_hash_table *);
112 extern bfd_boolean _bfd_sparc_elf_create_dynamic_sections
113 (bfd *, struct bfd_link_info *);
114 extern void _bfd_sparc_elf_copy_indirect_symbol
115 (struct bfd_link_info *,
116 struct elf_link_hash_entry *,
117 struct elf_link_hash_entry *);
118 extern bfd_boolean _bfd_sparc_elf_check_relocs
119 (bfd *, struct bfd_link_info *,
120 asection *, const Elf_Internal_Rela *);
121 extern asection *_bfd_sparc_elf_gc_mark_hook
122 (asection *, struct bfd_link_info *,
123 Elf_Internal_Rela *, struct elf_link_hash_entry *,
125 extern bfd_boolean _bfd_sparc_elf_gc_sweep_hook
126 (bfd *, struct bfd_link_info *,
127 asection *, const Elf_Internal_Rela *);
128 extern bfd_boolean _bfd_sparc_elf_adjust_dynamic_symbol
129 (struct bfd_link_info *, struct elf_link_hash_entry *);
130 extern bfd_boolean _bfd_sparc_elf_omit_section_dynsym
131 (bfd *, struct bfd_link_info *, asection *);
132 extern bfd_boolean _bfd_sparc_elf_size_dynamic_sections
133 (bfd *, struct bfd_link_info *);
134 extern bfd_boolean _bfd_sparc_elf_new_section_hook
136 extern bfd_boolean _bfd_sparc_elf_relax_section
137 (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
138 extern bfd_boolean _bfd_sparc_elf_relocate_section
139 (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
140 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
141 extern bfd_boolean _bfd_sparc_elf_finish_dynamic_symbol
142 (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
143 Elf_Internal_Sym *sym);
144 extern bfd_boolean _bfd_sparc_elf_finish_dynamic_sections
145 (bfd *, struct bfd_link_info *);
146 extern bfd_boolean _bfd_sparc_elf_object_p
148 extern bfd_vma _bfd_sparc_elf_plt_sym_val
149 (bfd_vma, const asection *, const arelent *);
150 extern bfd_boolean _bfd_sparc_elf_merge_private_bfd_data