oasys.h   [plain text]

/* Oasys object format header file for BFD.
   Contributed by Cygnus Support.  */

#define OASYS_MAX_SEC_COUNT 16
/* **** */

typedef struct oasys_archive_header {
  unsigned int  version;
  char create_date[12];
  char revision_date[12];
  unsigned int mod_count;
  file_ptr mod_tbl_offset;
  unsigned int sym_tbl_size;
  unsigned int sym_count;
  file_ptr sym_tbl_offset;
  unsigned int xref_count;
  file_ptr xref_lst_offset;
} oasys_archive_header_type;

typedef struct oasys_extarchive_header {
  bfd_byte version[4];
  bfd_byte create_date[12];
  bfd_byte revision_date[12];
  bfd_byte mod_count[4];
  bfd_byte mod_tbl_offset[4];
  bfd_byte sym_tbl_size[4];
  bfd_byte sym_count[4];
  bfd_byte sym_tbl_offset[4];
  bfd_byte xref_count[4];
  bfd_byte xref_lst_offset[4];
} oasys_extarchive_header_type;

typedef struct oasys_module_table {
  int mod_number;
  char mod_date[12];
  unsigned int mod_size;
  unsigned int dep_count;
  unsigned int depee_count;
  file_ptr file_offset;
  unsigned int sect_count;
  char *module_name;
  unsigned int module_name_size;
} oasys_module_table_type;


typedef struct oasys_extmodule_table_a {
  bfd_byte mod_number[4];
  bfd_byte mod_date[12];
  bfd_byte mod_size[4];
  bfd_byte dep_count[4];
  bfd_byte depee_count[4];
  bfd_byte sect_count[4];
  bfd_byte file_offset[4];
  bfd_byte mod_name[32];
} oasys_extmodule_table_type_a_type;

typedef struct oasys_extmodule_table_b {
  bfd_byte mod_number[4];
  bfd_byte mod_date[12];
  bfd_byte mod_size[4];
  bfd_byte dep_count[4];
  bfd_byte depee_count[4];
  bfd_byte sect_count[4];
  bfd_byte file_offset[4];
  bfd_byte mod_name_length[4];
} oasys_extmodule_table_type_b_type;


typedef enum oasys_record {
  oasys_record_is_end_enum = 0,
  oasys_record_is_data_enum = 1,
  oasys_record_is_symbol_enum = 2,
  oasys_record_is_header_enum = 3,
  oasys_record_is_named_section_enum = 4,
  oasys_record_is_com_enum = 5,
  oasys_record_is_debug_enum = 6,
  oasys_record_is_section_enum = 7,
  oasys_record_is_debug_file_enum = 8,
  oasys_record_is_module_enum = 9,
  oasys_record_is_local_enum = 10
} oasys_record_enum_type;

  

typedef struct oasys_record_header {
  unsigned char length;
  unsigned char check_sum;
  unsigned char type;
  unsigned char fill;
} oasys_record_header_type;

typedef struct oasys_data_record {
  oasys_record_header_type header;
  unsigned char relb;
  bfd_byte addr[4];
  /* maximum total size of data record is 255 bytes */
  bfd_byte data[246];
} oasys_data_record_type;

typedef struct oasys_header_record {
  oasys_record_header_type header;
  unsigned char version_number;
  unsigned char rev_number;
  char module_name[26-6];
  char description[64-26];
} oasys_header_record_type;

#define OASYS_VERSION_NUMBER 0
#define OASYS_REV_NUMBER 0

typedef struct oasys_symbol_record {
  oasys_record_header_type header;
  unsigned char relb;
  bfd_byte value[4];
  bfd_byte refno[2];
  char name[64];
} oasys_symbol_record_type;

#define RELOCATION_PCREL_BIT 0x80
#define RELOCATION_32BIT_BIT 0x40
#define RELOCATION_TYPE_BITS 0x30
#define RELOCATION_TYPE_ABS 0x00
#define RELOCATION_TYPE_REL 0x10
#define RELOCATION_TYPE_UND 0x20
#define RELOCATION_TYPE_COM 0x30
#define RELOCATION_SECT_BITS 0x0f

typedef struct oasys_section_record {
  oasys_record_header_type header;
  unsigned char relb;
  bfd_byte value[4];
  bfd_byte vma[4];
  bfd_byte fill[3];
} oasys_section_record_type;

typedef struct oasys_end_record {
  oasys_record_header_type header;
  unsigned char relb;
  bfd_byte entry[4];
  bfd_byte fill[2];
  bfd_byte zero;
} oasys_end_record_type;

typedef union oasys_record_union {
  oasys_record_header_type header;
  oasys_data_record_type data;
  oasys_section_record_type section;
  oasys_symbol_record_type symbol;
  oasys_header_record_type first;
  oasys_end_record_type end;
  bfd_byte pad[256];
} oasys_record_union_type;