Subversion Repositories openrisc_2011-10-31

/* SPARC ELF specific backend routines.

   Copyright 2005, 2006, 2007, 2009 Free Software Foundation, Inc.

   This file is part of BFD, the Binary File Descriptor library.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,

   MA 02110-1301, USA.  */

#include "elf/common.h"

#include "elf/internal.h"

struct _bfd_sparc_elf_section_data

{

  struct bfd_elf_section_data elf;

  unsigned int do_relax, reloc_count;

};

#define sec_do_relax(sec) \

  ((struct _bfd_sparc_elf_section_data *) elf_section_data (sec))->do_relax

#define canon_reloc_count(sec) \

  ((struct _bfd_sparc_elf_section_data *) elf_section_data (sec))->reloc_count

struct _bfd_sparc_elf_app_reg

{

  unsigned char bind;

  unsigned short shndx;

  bfd *abfd;

  char *name;

};

/* Sparc ELF linker hash table.  */

struct _bfd_sparc_elf_link_hash_table

{

  struct elf_link_hash_table elf;

  /* Short-cuts to get to dynamic linker sections.  */

  asection *sgot;

  asection *srelgot;

  asection *splt;

  asection *srelplt;

  asection *sdynbss;

  asection *srelbss;

  union {

    bfd_signed_vma refcount;

    bfd_vma offset;

  } tls_ldm_got;

  /* Small local sym cache.  */

  struct sym_cache sym_cache;

  /* True if the target system is VxWorks.  */

  int is_vxworks;

  /* The (unloaded but important) .rela.plt.unloaded section, for VxWorks.  */

  asection *srelplt2;

  /* .got.plt is only used on VxWorks.  */

  asection *sgotplt;

  void (*put_word) (bfd *, bfd_vma, void *);

  bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);

  bfd_vma (*r_symndx) (bfd_vma);

  int (*build_plt_entry) (bfd *, asection *, bfd_vma, bfd_vma, bfd_vma *);

  const char *dynamic_interpreter;

  int dynamic_interpreter_size;

  unsigned int word_align_power;

  unsigned int align_power_max;

  unsigned int plt_header_size;

  unsigned int plt_entry_size;

  int bytes_per_word;

  int bytes_per_rela;

  int dtpoff_reloc;

  int dtpmod_reloc;

  int tpoff_reloc;

  struct _bfd_sparc_elf_app_reg app_regs [4];

};

/* Get the SPARC ELF linker hash table from a link_info structure.  */

#define _bfd_sparc_elf_hash_table(p) \

  ((struct _bfd_sparc_elf_link_hash_table *) ((p)->hash))

extern reloc_howto_type *_bfd_sparc_elf_reloc_type_lookup

  (bfd *, bfd_reloc_code_real_type);

extern reloc_howto_type *_bfd_sparc_elf_reloc_name_lookup

  (bfd *, const char *);

extern void _bfd_sparc_elf_info_to_howto

  (bfd *, arelent *, Elf_Internal_Rela *);

extern reloc_howto_type *_bfd_sparc_elf_info_to_howto_ptr

  (unsigned int);

extern bfd_boolean _bfd_sparc_elf_mkobject

  (bfd *);

extern struct bfd_link_hash_table *_bfd_sparc_elf_link_hash_table_create

  (bfd *);

extern bfd_boolean _bfd_sparc_elf_create_dynamic_sections

  (bfd *, struct bfd_link_info *);

extern void _bfd_sparc_elf_copy_indirect_symbol

  (struct bfd_link_info *,

   struct elf_link_hash_entry *,

   struct elf_link_hash_entry *);

extern bfd_boolean _bfd_sparc_elf_check_relocs

  (bfd *, struct bfd_link_info *,

   asection *, const Elf_Internal_Rela *);

extern asection *_bfd_sparc_elf_gc_mark_hook

  (asection *, struct bfd_link_info *,

   Elf_Internal_Rela *, struct elf_link_hash_entry *,

   Elf_Internal_Sym *);

extern bfd_boolean _bfd_sparc_elf_gc_sweep_hook

  (bfd *, struct bfd_link_info *,

   asection *, const Elf_Internal_Rela *);

extern bfd_boolean _bfd_sparc_elf_adjust_dynamic_symbol

  (struct bfd_link_info *, struct elf_link_hash_entry *);

extern bfd_boolean _bfd_sparc_elf_omit_section_dynsym

  (bfd *, struct bfd_link_info *, asection *);

extern bfd_boolean _bfd_sparc_elf_size_dynamic_sections

  (bfd *, struct bfd_link_info *);

extern bfd_boolean _bfd_sparc_elf_new_section_hook

  (bfd *, asection *);

extern bfd_boolean _bfd_sparc_elf_relax_section

  (bfd *, struct bfd_section *, struct bfd_link_info *, bfd_boolean *);

extern bfd_boolean _bfd_sparc_elf_relocate_section

  (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,

   Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);

extern bfd_boolean _bfd_sparc_elf_finish_dynamic_symbol

  (bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,

   Elf_Internal_Sym *sym);

extern bfd_boolean _bfd_sparc_elf_finish_dynamic_sections

  (bfd *, struct bfd_link_info *);

extern bfd_boolean _bfd_sparc_elf_object_p

  (bfd *);

extern bfd_vma _bfd_sparc_elf_plt_sym_val

  (bfd_vma, const asection *, const arelent *);