/* SOM internal definitions for BFD.
  Copyright (C) 2010-2024 Free Software Foundation, Inc.
  Contributed by Tristan Gingold <[email protected]>, AdaCore.

  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.  */

#ifndef _SOM_INTERNAL_H
#define _SOM_INTERNAL_H

struct som_clock
{
 unsigned int secs;
 unsigned int nanosecs;
};

struct som_header
{
 unsigned short system_id;
 unsigned short a_magic;
 unsigned int version_id;
 struct som_clock file_time;
 unsigned int entry_space;
 unsigned int entry_subspace;
 unsigned int entry_offset;
 unsigned int aux_header_location;
 unsigned int aux_header_size;
 unsigned int som_length;
 unsigned int presumed_dp;
 unsigned int space_location;
 unsigned int space_total;
 unsigned int subspace_location;
 unsigned int subspace_total;
 unsigned int loader_fixup_location;
 unsigned int loader_fixup_total;
 unsigned int space_strings_location;
 unsigned int space_strings_size;
 unsigned int init_array_location;
 unsigned int init_array_total;
 unsigned int compiler_location;
 unsigned int compiler_total;
 unsigned int symbol_location;
 unsigned int symbol_total;
 unsigned int fixup_request_location;
 unsigned int fixup_request_total;
 unsigned int symbol_strings_location;
 unsigned int symbol_strings_size;
 unsigned int unloadable_sp_location;
 unsigned int unloadable_sp_size;
 unsigned int checksum;
};

struct som_aux_id
{
 unsigned int mandatory : 1;
 unsigned int copy : 1;
 unsigned int append : 1;
 unsigned int ignore : 1;
 unsigned int reserved : 12;

 /* Header type.  */
 unsigned int type : 16;

 /* Length of the header in bytes, without the two word identifier.  */
 unsigned int length;
};

/* Generic auxiliary string header.  */
struct som_string_auxhdr
{
 struct som_aux_id header_id;

 /* Length of the string, without the NUL.  */
 unsigned int string_length;

 /* The string.  */
 char string[1];
};

struct som_name_pt
{
 char *name;
 unsigned int strx;
};

struct som_compilation_unit
{
 /* Source file that produced the SOM.  */
 struct som_name_pt name;

 /* Name of the language used when creating this SOM.  */
 struct som_name_pt language_name;

 /* Identificaton of the compiler.  */
 struct som_name_pt product_id;

 /* Version id of the compiler.  */
 struct som_name_pt version_id;

 unsigned int flags;
 struct som_clock compile_time;
 struct som_clock source_time;
};

struct som_exec_auxhdr
{
 struct som_aux_id som_auxhdr;

 long exec_tsize;
 long exec_tmem;
 long exec_tfile;
 long exec_dsize;
 long exec_dmem;
 long exec_dfile;
 long exec_bsize;
 long exec_entry;
 long exec_flags;
 long exec_bfill;
};

struct som_space_dictionary_record
{
 unsigned int name;
 unsigned int is_loadable : 1;
 unsigned int is_defined : 1;
 unsigned int is_private : 1;
 unsigned int has_intermediate_code : 1;
 unsigned int is_tspecific : 1;
 unsigned int reserved : 11;
 unsigned int sort_key : 8;
 unsigned int reserved2 : 8;
 int space_number;
 int subspace_index;
 unsigned int subspace_quantity;
 int loader_fix_index;
 unsigned int loader_fix_quantity;
 int init_pointer_index;
 unsigned int init_pointer_quantity;
};

struct som_subspace_dictionary_record
{
 int space_index;
 unsigned int access_control_bits : 7;
 unsigned int memory_resident : 1;
 unsigned int dup_common : 1;
 unsigned int is_common : 1;
 unsigned int is_loadable : 1;
 unsigned int quadrant : 2;
 unsigned int initially_frozen : 1;
 unsigned int is_first : 1;
 unsigned int code_only : 1;
 unsigned int sort_key : 8;
 unsigned int replicate_init : 1;
 unsigned int continuation : 1;
 unsigned int is_tspecific : 1;
 unsigned int is_comdat : 1;
 unsigned int reserved : 4;
 int file_loc_init_value;
 unsigned int initialization_length;
 unsigned int subspace_start;
 unsigned int subspace_length;
 unsigned int reserved2 : 5;
 unsigned int alignment : 27;
 unsigned int name;
 int fixup_request_index;
 unsigned int fixup_request_quantity;
};

struct som_lst_header
{
 unsigned short system_id;
 unsigned short a_magic;
 unsigned int version_id;
 struct som_clock file_time;
 unsigned int hash_loc;
 unsigned int hash_size;
 unsigned int module_count;
 unsigned int module_limit;
 unsigned int dir_loc;
 unsigned int export_loc;
 unsigned int export_count;
 unsigned int import_loc;
 unsigned int aux_loc;
 unsigned int aux_size;
 unsigned int string_loc;
 unsigned int string_size;
 unsigned int free_list;
 unsigned int file_end;
 unsigned int checksum;
};

#endif /* _SOM_INTERNAL_H */

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