1 /* SPARC ELF specific backend routines. 2 Copyright 2005 Free Software Foundation, Inc. 3 4 This file is part of BFD, the Binary File Descriptor library. 5 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 2 of the License, or 9 (at your option) any later version. 10 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. 15 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, MA 02110-1301, USA. */ 19 20 #include "elf/common.h" 21 #include "elf/internal.h" 22 23 struct _bfd_sparc_elf_section_data 24 { 25 struct bfd_elf_section_data elf; 26 unsigned int do_relax, reloc_count; 27 }; 28 29 #define sec_do_relax(sec) \ 30 ((struct _bfd_sparc_elf_section_data *) elf_section_data (sec))->do_relax 31 #define canon_reloc_count(sec) \ 32 ((struct _bfd_sparc_elf_section_data *) elf_section_data (sec))->reloc_count 33 34 struct _bfd_sparc_elf_app_reg 35 { 36 unsigned char bind; 37 unsigned short shndx; 38 bfd *abfd; 39 char *name; 40 }; 41 42 /* Sparc ELF linker hash table. */ 43 44 struct _bfd_sparc_elf_link_hash_table 45 { 46 struct elf_link_hash_table elf; 47 48 /* Short-cuts to get to dynamic linker sections. */ 49 asection *sgot; 50 asection *srelgot; 51 asection *splt; 52 asection *srelplt; 53 asection *sdynbss; 54 asection *srelbss; 55 56 union { 57 bfd_signed_vma refcount; 58 bfd_vma offset; 59 } tls_ldm_got; 60 61 /* Small local sym to section mapping cache. */ 62 struct sym_sec_cache sym_sec; 63 64 /* True if the target system is VxWorks. */ 65 int is_vxworks; 66 67 /* The (unloaded but important) .rela.plt.unloaded section, for VxWorks. */ 68 asection *srelplt2; 69 70 /* .got.plt is only used on VxWorks. */ 71 asection *sgotplt; 72 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; 83 int bytes_per_word; 84 int bytes_per_rela; 85 int dtpoff_reloc; 86 int dtpmod_reloc; 87 int tpoff_reloc; 88 89 struct _bfd_sparc_elf_app_reg app_regs [4]; 90 }; 91 92 /* Get the SPARC ELF linker hash table from a link_info structure. */ 93 94 #define _bfd_sparc_elf_hash_table(p) \ 95 ((struct _bfd_sparc_elf_link_hash_table *) ((p)->hash)) 96 97 extern reloc_howto_type *_bfd_sparc_elf_reloc_type_lookup 98 (bfd *, bfd_reloc_code_real_type); 99 extern void _bfd_sparc_elf_info_to_howto 100 (bfd *, arelent *, Elf_Internal_Rela *); 101 extern reloc_howto_type *_bfd_sparc_elf_info_to_howto_ptr 102 (unsigned int); 103 extern bfd_boolean _bfd_sparc_elf_mkobject 104 (bfd *); 105 extern struct bfd_link_hash_table *_bfd_sparc_elf_link_hash_table_create 106 (bfd *); 107 extern bfd_boolean _bfd_sparc_elf_create_dynamic_sections 108 (bfd *, struct bfd_link_info *); 109 extern void _bfd_sparc_elf_copy_indirect_symbol 110 (struct bfd_link_info *, 111 struct elf_link_hash_entry *, 112 struct elf_link_hash_entry *); 113 extern bfd_boolean _bfd_sparc_elf_check_relocs 114 (bfd *, struct bfd_link_info *, 115 asection *, const Elf_Internal_Rela *); 116 extern asection *_bfd_sparc_elf_gc_mark_hook 117 (asection *, struct bfd_link_info *, 118 Elf_Internal_Rela *, struct elf_link_hash_entry *, 119 Elf_Internal_Sym *); 120 extern bfd_boolean _bfd_sparc_elf_gc_sweep_hook 121 (bfd *, struct bfd_link_info *, 122 asection *, const Elf_Internal_Rela *); 123 extern bfd_boolean _bfd_sparc_elf_adjust_dynamic_symbol 124 (struct bfd_link_info *, struct elf_link_hash_entry *); 125 extern bfd_boolean _bfd_sparc_elf_omit_section_dynsym 126 (bfd *, struct bfd_link_info *, asection *); 127 extern bfd_boolean _bfd_sparc_elf_size_dynamic_sections 128 (bfd *, struct bfd_link_info *); 129 extern bfd_boolean _bfd_sparc_elf_new_section_hook 130 (bfd *, asection *); 131 extern bfd_boolean _bfd_sparc_elf_relax_section 132 (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *); 133 extern bfd_boolean _bfd_sparc_elf_relocate_section 134 (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, 135 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **); 136 extern bfd_boolean _bfd_sparc_elf_finish_dynamic_symbol 137 (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, 138 Elf_Internal_Sym *sym); 139 extern bfd_boolean _bfd_sparc_elf_finish_dynamic_sections 140 (bfd *, struct bfd_link_info *); 141 extern bfd_boolean _bfd_sparc_elf_object_p 142 (bfd *); 143 extern bfd_vma _bfd_sparc_elf_plt_sym_val 144 (bfd_vma, const asection *, const arelent *); 145