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/*** coff information for Texas Instruments TMS320C3X */

/********************** FILE HEADER **********************/

struct external_filehdr {

        char f_magic[2];        /* magic number                 */

        char f_nscns[2];        /* number of sections           */

        char f_timdat[4];       /* time & date stamp            */

        char f_symptr[4];       /* file pointer to symtab       */

        char f_nsyms[4];        /* number of symtab entries     */

        char f_opthdr[2];       /* sizeof(optional hdr)         */

        char f_flags[2];        /* flags                        */

};

#define TIC30MAGIC      0xC000

#define TIC30BADMAG(x) (((x).f_magic!=TIC30MAGIC))

#define FILHDR  struct external_filehdr

#define FILHSZ  20

/********************** AOUT "OPTIONAL HEADER" **********************/

typedef struct

{

  char  magic[2];               /* type of file                         */

  char  vstamp[2];              /* version stamp                        */

  char  tsize[4];               /* text size in bytes, padded to FW bdry*/

  char  dsize[4];               /* initialized data "  "                */

  char  bsize[4];               /* uninitialized data "   "             */

  char  entry[4];               /* entry pt.                            */

  char  text_start[4];          /* base of text used for this file */

  char  data_start[4];          /* base of data used for this file */

}

AOUTHDR;

#define AOUTHDRSZ 28

#define AOUTSZ 28

/********************** SECTION HEADER **********************/

struct external_scnhdr {

        char            s_name[8];      /* section name                 */

        char            s_paddr[4];     /* physical address, aliased s_nlib */

        char            s_vaddr[4];     /* virtual address              */

        char            s_size[4];      /* section size                 */

        char            s_scnptr[4];    /* file ptr to raw data for section */

        char            s_relptr[4];    /* file ptr to relocation       */

        char            s_lnnoptr[4];   /* file ptr to line numbers     */

        char            s_nreloc[2];    /* number of relocation entries */

        char            s_nlnno[2];     /* number of line number entries*/

        char            s_flags[4];     /* flags                        */

};

/*

 * names of "special" sections

 */

#define _TEXT   ".text"

#define _DATA   ".data"

#define _BSS    ".bss"

#define SCNHDR  struct external_scnhdr

#define SCNHSZ  40

/********************** LINE NUMBERS **********************/

/* 1 line number entry for every "breakpointable" source line in a section.

 * Line numbers are grouped on a per function basis; first entry in a function

 * grouping will have l_lnno = 0 and in place of physical address will be the

 * symbol table index of the function name.

 */

struct external_lineno {

        union {

                char l_symndx[4];       /* function name symbol index, iff l_lnno == 0*/

                char l_paddr[4];        /* (physical) address of line number    */

        } l_addr;

        char l_lnno[4]; /* line number          */

};

#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno));

#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_32(abfd,val,  (bfd_byte *) (ext->l_lnno));

#define LINENO  struct external_lineno

#define LINESZ  8

/********************** SYMBOLS **********************/

#define E_SYMNMLEN      8       /* # characters in a symbol name        */

#define E_FILNMLEN      14      /* # characters in a file name          */

#define E_DIMNUM        4       /* # array dimensions in auxiliary entry */

struct external_syment

{

  union {

    char e_name[E_SYMNMLEN];

    struct {

      char e_zeroes[4];

      char e_offset[4];

    } e;

  } e;

  char e_value[4];

  char e_scnum[2];

  char e_type[2];

  char e_sclass[1];

  char e_numaux[1];

};

#define N_BTMASK        (017)

#define N_TMASK         (060)

#define N_BTSHFT        (4)

#define N_TSHIFT        (2)

union external_auxent {

  struct {

        char x_tagndx[4];       /* str, un, or enum tag indx */

        union {

          struct {

                char  x_lnno[2]; /* declaration line number */

                char  x_size[2]; /* str/union/array size */

          } x_lnsz;

          char x_fsize[4];      /* size of function */

        } x_misc;

        union {

          struct {              /* if ISFCN, tag, or .bb */

                char x_lnnoptr[4];      /* ptr to fcn line # */

                char x_endndx[4];       /* entry ndx past block end */

          } x_fcn;

          struct {              /* if ISARY, up to 4 dimen. */

                char x_dimen[E_DIMNUM][2];

          } x_ary;

        } x_fcnary;

        char x_tvndx[2];                /* tv index */

  } x_sym;

  union {

        char x_fname[E_FILNMLEN];

        struct {

          char x_zeroes[4];

          char x_offset[4];

        } x_n;

  } x_file;

  struct {

        char x_scnlen[4];                       /* section length */

        char x_nreloc[2];       /* # relocation entries */

        char x_nlinno[2];       /* # line numbers */

  } x_scn;

  struct {

        char x_tvfill[4];       /* tv fill value */

        char x_tvlen[2];        /* length of .tv */

        char x_tvran[2][2];     /* tv range */

  } x_tv;               /* info about .tv section (in auxent of symbol .tv)) */

};

#define SYMENT  struct external_syment

#define SYMESZ  18      

#define AUXENT  union external_auxent

#define AUXESZ  18

/********************** RELOCATION DIRECTIVES **********************/

/* The external reloc has an offset field, because some of the reloc

   types on the z8k don't have room in the instruction for the entire

   offset - eg with segments */

struct external_reloc {

  char r_vaddr[4];

  char r_symndx[4];

  char r_offset[4];

  char r_type[2];

  char r_stuff[2];

};

#define RELOC struct external_reloc

#define RELSZ 16

/* TMS320C30 relocation types.  */

#define R_TIC30_ABS16 0x100  /* 16 bit absolute. */

#define R_TIC30_ABS24 0x101  /* 24 bit absolute. */

#define R_TIC30_ABS32 0x102  /* 32 bit absolute. */

#define R_TIC30_LDP   0x103  /* LDP bits 23-16 to 7-0. */

#define R_TIC30_PC16  0x104  /* 16 bit pc relative. */