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 3 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,
  19    MA 02110-1301, USA.  */
  20
  21 #include "elf/common.h"
  22 #include "elf/internal.h"
  23
  24 struct _bfd_sparc_elf_section_data
  25 {
  26   struct bfd_elf_section_data elf;
  27   unsigned int do_relax, reloc_count;
  28 };
  29
  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
  34
  35 struct _bfd_sparc_elf_app_reg
  36 {
  37   unsigned char bind;
  38   unsigned short shndx;
  39   bfd *abfd;
  40   char *name;
  41 };
  42
  43 /* Sparc ELF linker hash table.  */
  44
  45 struct _bfd_sparc_elf_link_hash_table
  46 {
  47   struct elf_link_hash_table elf;
  48
  49   /* Short-cuts to get to dynamic linker sections.  */
  50   asection *sgot;
  51   asection *srelgot;
  52   asection *splt;
  53   asection *srelplt;
  54   asection *sdynbss;
  55   asection *srelbss;
  56
  57   union {
  58     bfd_signed_vma refcount;
  59     bfd_vma offset;
  60   } tls_ldm_got;
  61
  62   /* Small local sym to section mapping cache.  */
  63   struct sym_sec_cache sym_sec;
  64
  65   /* True if the target system is VxWorks.  */
  66   int is_vxworks;
  67
  68   /* The (unloaded but important) .rela.plt.unloaded section, for VxWorks.  */
  69   asection *srelplt2;
  70
  71   /* .got.plt is only used on VxWorks.  */
  72   asection *sgotplt;
  73
  74   void (*put_word) (bfd *, bfd_vma, void *);
  75   bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
  76   bfd_vma (*r_symndx) (bfd_vma);
  77   int (*build_plt_entry) (bfd *, asection *, bfd_vma, bfd_vma, bfd_vma *);
  78   const char *dynamic_interpreter;
  79   int dynamic_interpreter_size;
  80   unsigned int word_align_power;
  81   unsigned int align_power_max;
  82   unsigned int plt_header_size;
  83   unsigned int plt_entry_size;
  84   int bytes_per_word;
  85   int bytes_per_rela;
  86   int dtpoff_reloc;
  87   int dtpmod_reloc;
  88   int tpoff_reloc;
  89
  90   struct _bfd_sparc_elf_app_reg app_regs [4];
  91 };
  92
  93 /* Get the SPARC ELF linker hash table from a link_info structure.  */
  94
  95 #define _bfd_sparc_elf_hash_table(p) \
  96   ((struct _bfd_sparc_elf_link_hash_table *) ((p)->hash))
  97
  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
 105   (unsigned int);
 106 extern bfd_boolean _bfd_sparc_elf_mkobject
 107   (bfd *);
 108 extern struct bfd_link_hash_table *_bfd_sparc_elf_link_hash_table_create
 109   (bfd *);
 110 extern bfd_boolean _bfd_sparc_elf_create_dynamic_sections
 111   (bfd *, struct bfd_link_info *);
 112 extern void _bfd_sparc_elf_copy_indirect_symbol
 113   (struct bfd_link_info *,
 114    struct elf_link_hash_entry *,
 115    struct elf_link_hash_entry *);
 116 extern bfd_boolean _bfd_sparc_elf_check_relocs
 117   (bfd *, struct bfd_link_info *,
 118    asection *, const Elf_Internal_Rela *);
 119 extern asection *_bfd_sparc_elf_gc_mark_hook
 120   (asection *, struct bfd_link_info *,
 121    Elf_Internal_Rela *, struct elf_link_hash_entry *,
 122    Elf_Internal_Sym *);
 123 extern bfd_boolean _bfd_sparc_elf_gc_sweep_hook
 124   (bfd *, struct bfd_link_info *,
 125    asection *, const Elf_Internal_Rela *);
 126 extern bfd_boolean _bfd_sparc_elf_adjust_dynamic_symbol
 127   (struct bfd_link_info *, struct elf_link_hash_entry *);
 128 extern bfd_boolean _bfd_sparc_elf_omit_section_dynsym
 129   (bfd *, struct bfd_link_info *, asection *);
 130 extern bfd_boolean _bfd_sparc_elf_size_dynamic_sections
 131   (bfd *, struct bfd_link_info *);
 132 extern bfd_boolean _bfd_sparc_elf_new_section_hook
 133   (bfd *, asection *);
 134 extern bfd_boolean _bfd_sparc_elf_relax_section
 135   (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);
 136 extern bfd_boolean _bfd_sparc_elf_relocate_section
 137   (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
 138    Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
 139 extern bfd_boolean _bfd_sparc_elf_finish_dynamic_symbol
 140   (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
 141    Elf_Internal_Sym *sym);
 142 extern bfd_boolean _bfd_sparc_elf_finish_dynamic_sections
 143   (bfd *, struct bfd_link_info *);
 144 extern bfd_boolean _bfd_sparc_elf_object_p
 145   (bfd *);
 146 extern bfd_vma _bfd_sparc_elf_plt_sym_val
 147   (bfd_vma, const asection *, const arelent *);