bfd/elfxx-sparc.h

   1 /* SPARC ELF specific backend routines.
   2    Copyright 2005, 2007 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 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
 104   (unsigned int);
 105 extern bfd_boolean _bfd_sparc_elf_mkobject
 106   (bfd *);
 107 extern struct bfd_link_hash_table *_bfd_sparc_elf_link_hash_table_create
 108   (bfd *);
 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 *,
 121    Elf_Internal_Sym *);
 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
 132   (bfd *, asection *);
 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
 144   (bfd *);
 145 extern bfd_vma _bfd_sparc_elf_plt_sym_val
 146   (bfd_vma, const asection *, const arelent *);