bfd/elfxx-sparc.h

   1 /* SPARC ELF specific backend routines.
   2    Copyright 2005, 2006, 2007, 2009, 2010, 2011
   3    Free Software Foundation, Inc.
   4
   5    This file is part of BFD, the Binary File Descriptor library.
   6
   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.
  11
  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.
  16
  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.  */
  21
  22 #include "elf/common.h"
  23 #include "elf/internal.h"
  24
  25 struct _bfd_sparc_elf_section_data
  26 {
  27   struct bfd_elf_section_data elf;
  28   unsigned int do_relax, reloc_count;
  29 };
  30
  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
  35
  36 struct _bfd_sparc_elf_app_reg
  37 {
  38   unsigned char bind;
  39   unsigned short shndx;
  40   bfd *abfd;
  41   char *name;
  42 };
  43
  44 /* Sparc ELF linker hash table.  */
  45
  46 struct _bfd_sparc_elf_link_hash_table
  47 {
  48   struct elf_link_hash_table elf;
  49
  50   /* Short-cuts to get to dynamic linker sections.  */
  51   asection *sdynbss;
  52   asection *srelbss;
  53
  54   union
  55   {
  56     bfd_signed_vma refcount;
  57     bfd_vma offset;
  58   } tls_ldm_got;
  59
  60   /* Small local sym cache.  */
  61   struct sym_cache sym_cache;
  62
  63   /* Used by local STT_GNU_IFUNC symbols.  */
  64   htab_t loc_hash_table;
  65   void *loc_hash_memory;
  66
  67   /* True if the target system is VxWorks.  */
  68   int is_vxworks;
  69
  70   /* The (unloaded but important) .rela.plt.unloaded section, for VxWorks.  */
  71   asection *srelplt2;
  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   (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)
  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 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 *,
 124    Elf_Internal_Sym *);
 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
 135   (bfd *, asection *);
 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
 147   (bfd *);
 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
 151   (bfd *, bfd *);