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/* SPU specific support for 32-bit ELF.

   Copyright 2006, 2007, 2008, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

struct spu_elf_params

{

  /* Stash various callbacks for --auto-overlay.  */

  void (*place_spu_section) (asection *, asection *, const char *);

  bfd_size_type (*spu_elf_load_ovl_mgr) (void);

  FILE *(*spu_elf_open_overlay_script) (void);

  void (*spu_elf_relink) (void);

  /* Bit 0 set if --auto-overlay.

     Bit 1 set if --auto-relink.

     Bit 2 set if --overlay-rodata.  */

  unsigned int auto_overlay : 3;

#define AUTO_OVERLAY 1

#define AUTO_RELINK 2

#define OVERLAY_RODATA 4

  /* Type of overlays, enum _ovly_flavour.  */

  unsigned int ovly_flavour : 1;

  unsigned int compact_stub : 1;

  /* Set if we should emit symbols for stubs.  */

  unsigned int emit_stub_syms : 1;

  /* Set if we want stubs on calls out of overlay regions to

     non-overlay regions.  */

  unsigned int non_overlay_stubs : 1;

  /* Set if lr liveness analysis should be done.  */

  unsigned int lrlive_analysis : 1;

  /* Set if stack size analysis should be done.  */

  unsigned int stack_analysis : 1;

  /* Set if __stack_* syms will be emitted.  */

  unsigned int emit_stack_syms : 1;

  /* Set if non-icache code should be allowed in icache lines.  */

  unsigned int non_ia_text : 1;

  /* Set when the .fixup section should be generated. */

  unsigned int emit_fixups : 1;

  /* Range of valid addresses for loadable sections.  */

  bfd_vma local_store_lo;

  bfd_vma local_store_hi;

  /* Control --auto-overlay feature.  */

  unsigned int num_lines;

  unsigned int line_size;

  unsigned int max_branch;

  unsigned int auto_overlay_fixed;

  unsigned int auto_overlay_reserved;

  int extra_stack_space;

};

/* Extra info kept for SPU sections.  */

struct spu_elf_stack_info;

struct _spu_elf_section_data

{

  struct bfd_elf_section_data elf;

  union {

    /* Info kept for input sections.  */

    struct {

      /* Stack analysis info kept for this section.  */

      struct spu_elf_stack_info *stack_info;

    } i;

    /* Info kept for output sections.  */

    struct {

      /* Non-zero for overlay output sections.  */

      unsigned int ovl_index;

      unsigned int ovl_buf;

    } o;

  } u;

};

#define spu_elf_section_data(sec) \

  ((struct _spu_elf_section_data *) elf_section_data (sec))

enum _ovly_flavour

{

  ovly_normal,

  ovly_soft_icache

};

struct _ovl_stream

{

  const void *start;

  const void *end;

};

extern void spu_elf_setup (struct bfd_link_info *, struct spu_elf_params *);

extern void spu_elf_plugin (int);

extern bfd_boolean spu_elf_open_builtin_lib (bfd **,

                                             const struct _ovl_stream *);

extern bfd_boolean spu_elf_create_sections (struct bfd_link_info *);

extern bfd_boolean spu_elf_size_sections (bfd *, struct bfd_link_info *);

extern int spu_elf_find_overlays (struct bfd_link_info *);

extern int spu_elf_size_stubs (struct bfd_link_info *);

extern void spu_elf_place_overlay_data (struct bfd_link_info *);

extern asection *spu_elf_check_vma (struct bfd_link_info *);