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/* Mach-O object file format for gas, the assembler.

   Copyright 2009, 2011, 2012 Free Software Foundation, Inc.

   This file is part of GAS, the GNU Assembler.

   GAS 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,

   or (at your option) any later version.

   GAS 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 GAS; see the file COPYING.  If not, write to the Free

   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA

   02110-1301, USA.  */

#ifndef _OBJ_MACH_O_H

#define _OBJ_MACH_O_H

/* Tag to validate Mach-O object file format processing */

#define OBJ_MACH_O 1

#include "bfd/mach-o.h"

#include "targ-cpu.h"

#define OUTPUT_FLAVOR bfd_target_mach_o_flavour

/* We want to control how the sections are pre-defined on startup.  */

#define obj_begin() mach_o_begin ()

extern void mach_o_begin (void);

/* All our align expressions are power of two.  */

#define USE_ALIGN_PTWO 1

/* Common symbols can carry alignment information.  */

#ifndef S_SET_ALIGN

#define S_SET_ALIGN(S,V) do {\

  bfd_mach_o_asymbol *___s = (bfd_mach_o_asymbol *) symbol_get_bfdsym (S);\

  ___s->n_desc = (___s->n_desc & 0xf0ff) | (((V) & 0x0f) << 8);\

} while (0)

#endif

extern const pseudo_typeS mach_o_pseudo_table[];

#ifndef obj_pop_insert

#define obj_pop_insert() pop_insert (mach_o_pseudo_table)

#endif

#define obj_sec_sym_ok_for_reloc(SEC)   1

#define obj_read_begin_hook()   {;}

#define obj_symbol_new_hook(s)  {;}

#define EMIT_SECTION_SYMBOLS            0

struct obj_mach_o_symbol_data

{

  /* If the symbol represents a subsection, this is the size of the subsection.

     This is used to check whether a local symbol belongs to a subsection.  */

  valueT subsection_size;

};

#define OBJ_SYMFIELD_TYPE struct obj_mach_o_symbol_data

#define obj_frob_colon obj_mach_o_frob_colon

extern void obj_mach_o_frob_colon (const char *);

/* Called when a label is defined.  Mach-O uses this to create subsections.  */

#define obj_frob_label obj_mach_o_frob_label

extern void obj_mach_o_frob_label (symbolS *);

#define obj_frob_symbol(s, punt) punt = obj_mach_o_frob_symbol(s)

extern int obj_mach_o_frob_symbol (struct symbol *);

#define OBJ_PROCESS_STAB(SEG,W,S,T,O,D) obj_mach_o_process_stab(W,S,T,O,D)

extern void obj_mach_o_process_stab (int, const char *,int, int, int);

struct obj_mach_o_frag_data

{

  /* Symbol that corresponds to the subsection.  */

  symbolS *subsection;

};

#define OBJ_FRAG_TYPE struct obj_mach_o_frag_data

#define md_pre_output_hook obj_mach_o_pre_output_hook()

extern void obj_mach_o_pre_output_hook(void);

#define md_pre_relax_hook obj_mach_o_pre_relax_hook()

extern void obj_mach_o_pre_relax_hook (void);

#define md_post_relax_hook obj_mach_o_post_relax_hook()

extern void obj_mach_o_post_relax_hook (void);

#define obj_frob_file_after_relocs obj_mach_o_frob_file_after_relocs

extern void obj_mach_o_frob_file_after_relocs (void);

#define SET_SECTION_RELOCS(sec, relocs, n) \

  obj_mach_o_reorder_section_relocs (sec, relocs, n)

extern void obj_mach_o_reorder_section_relocs (asection *, arelent **,

                                               unsigned int);

/* Emit relocs for local subtracts, to cater for subsections-via-symbols.  */

#define md_allow_local_subtract(LEFT, RIGHT, SECTION) \

 obj_mach_o_allow_local_subtract (LEFT, RIGHT, SECTION)

extern int obj_mach_o_allow_local_subtract (expressionS *, expressionS *,

                                            segT);

struct fix;

extern int obj_mach_o_in_different_subsection (symbolS *a, symbolS *b);

extern int obj_mach_o_force_reloc (struct fix *fix);

extern int obj_mach_o_force_reloc_sub_same (struct fix *fix, segT seg);

extern int obj_mach_o_force_reloc_sub_local (struct fix *fix, segT seg);

#endif /* _OBJ_MACH_O_H */