include/coff/m88k.h

   1 /*** coff information for 88k bcs */
   2
   3 /********************** FILE HEADER **********************/
   4 struct external_filehdr {
   5         char f_magic[2];        /* magic number                 */
   6         char f_nscns[2];        /* number of sections           */
   7         char f_timdat[4];       /* time & date stamp            */
   8         char f_symptr[4];       /* file pointer to symtab       */
   9         char f_nsyms[4];        /* number of symtab entries     */
  10         char f_opthdr[2];       /* sizeof(optional hdr)         */
  11         char f_flags[2];        /* flags                        */
  12 };
  13
  14 #define MC88MAGIC  0540           /* 88k BCS executable */
  15 #define MC88DMAGIC 0541           /* DG/UX executable   */
  16 #define MC88OMAGIC 0555           /* Object file        */
  17
  18 #define MC88BADMAG(x) (((x).f_magic!=MC88MAGIC) &&((x).f_magic!=MC88DMAGIC) && ((x).f_magic != MC88OMAGIC))
  19
  20 #define FILHDR  struct external_filehdr
  21 #define FILHSZ  20
  22
  23
  24 /********************** AOUT "OPTIONAL HEADER" **********************/
  25
  26
  27 #define PAGEMAGIC3 0414 /* Split i&d, zero mapped */
  28 #define PAGEMAGICBCS 0413
  29
  30
  31 typedef struct
  32 {
  33   char  magic[2];               /* type of file                         */
  34   char  vstamp[2];              /* version stamp                        */
  35   char  tsize[4];               /* text size in bytes, padded to FW bdry*/
  36   char  dsize[4];               /* initialized data "  "                */
  37   char  bsize[4];               /* uninitialized data "   "             */
  38   char  entry[4];               /* entry pt.                            */
  39   char  text_start[4];          /* base of text used for this file */
  40   char  data_start[4];          /* base of data used for this file */
  41 }
  42 AOUTHDR;
  43
  44
  45 /* compute size of a header */
  46
  47 #define AOUTSZ 28
  48 #define AOUTHDRSZ 28
  49
  50
  51 /********************** SECTION HEADER **********************/
  52
  53
  54 struct external_scnhdr
  55 {
  56   char          s_name[8];      /* section name                 */
  57   char          s_paddr[4];     /* physical address, aliased s_nlib */
  58   char          s_vaddr[4];     /* virtual address              */
  59   char          s_size[4];      /* section size                 */
  60   char          s_scnptr[4];    /* file ptr to raw data for section */
  61   char          s_relptr[4];    /* file ptr to relocation       */
  62   char          s_lnnoptr[4];   /* file ptr to line numbers     */
  63   char          s_nreloc[4];    /* number of relocation entries */
  64   char          s_nlnno[4];     /* number of line number entries*/
  65   char          s_flags[4];     /* flags                        */
  66 };
  67
  68
  69 #define SCNHDR  struct external_scnhdr
  70 #define SCNHSZ  44
  71
  72 /*
  73  * names of "special" sections
  74  */
  75 #define _TEXT   ".text"
  76 #define _DATA   ".data"
  77 #define _BSS    ".bss"
  78 #define _COMMENT ".comment"
  79
  80 /********************** LINE NUMBERS **********************/
  81
  82 /* 1 line number entry for every "breakpointable" source line in a section.
  83  * Line numbers are grouped on a per function basis; first entry in a function
  84  * grouping will have l_lnno = 0 and in place of physical address will be the
  85  * symbol table index of the function name.
  86  */
  87 struct external_lineno{
  88         union {
  89                 char l_symndx[4];       /* function name symbol index, iff l_lnno == 0*/
  90                 char l_paddr[4];        /* (physical) address of line number    */
  91         } l_addr;
  92
  93         char l_lnno[4];
  94
  95 };
  96
  97 #define LINENO  struct external_lineno
  98 #define LINESZ  8
  99
 100
 101 /********************** SYMBOLS **********************/
 102
 103 #define E_SYMNMLEN      8       /* # characters in a symbol name        */
 104 #define E_FILNMLEN      14      /* # characters in a file name          */
 105 #define E_DIMNUM        4       /* # array dimensions in auxiliary entry */
 106
 107 struct external_syment
 108 {
 109   union {
 110     char e_name[E_SYMNMLEN];
 111     struct {
 112       char e_zeroes[4];
 113       char e_offset[4];
 114     } e;
 115   } e;
 116   char e_value[4];
 117   char e_scnum[2];
 118   char e_type[2];
 119   char e_sclass[1];
 120   char e_numaux[1];
 121   char pad2[2];
 122 };
 123
 124
 125
 126
 127 #define N_BTMASK        017
 128 #define N_TMASK         060
 129 #define N_BTSHFT        4
 130 #define N_TSHIFT        2
 131
 132
 133 /* Note that this isn't the same shape as other coffs */
 134 union external_auxent {
 135   struct {
 136     char x_tagndx[4];           /* str, un, or enum tag indx */
 137     /* 4 */
 138     union {
 139       char x_fsize[4];          /* size of function */
 140       struct {
 141         char  x_lnno[4];        /* declaration line number */
 142         char  x_size[4];        /* str/union/array size */
 143       } x_lnsz;
 144     } x_misc;
 145
 146     /* 12 */
 147     union {
 148       struct {                  /* if ISFCN, tag, or .bb */
 149         char x_lnnoptr[4];      /* ptr to fcn line # */
 150         char x_endndx[4];               /* entry ndx past block end */
 151       } x_fcn;
 152       struct {                  /* if ISARY, up to 4 dimen. */
 153         char x_dimen[E_DIMNUM][2];
 154       } x_ary;
 155     } x_fcnary;
 156     /* 20 */
 157
 158   } x_sym;
 159
 160   union {
 161     char x_fname[E_FILNMLEN];
 162     struct {
 163       char x_zeroes[4];
 164       char x_offset[4];
 165     } x_n;
 166   } x_file;
 167
 168   struct {
 169     char x_scnlen[4];           /* section length */
 170     char x_nreloc[4];           /* # relocation entries */
 171     char x_nlinno[4];           /* # line numbers */
 172   } x_scn;
 173
 174   struct {
 175     char x_tvfill[4];           /* tv fill value */
 176     char x_tvlen[2];            /* length of .tv */
 177     char x_tvran[2][2];         /* tv range */
 178   } x_tv;                       /* info about .tv section (in auxent of symbol .tv)) */
 179
 180 };
 181
 182 #define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *)ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
 183 #define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx)
 184 #define PUT_FCN_LNNOPTR(abfd, in, ext)  bfd_h_put_32(abfd,  in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
 185 #define PUT_FCN_ENDNDX(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *)   ext->x_sym.x_fcnary.x_fcn.x_endndx)
 186 #define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size)
 187 #define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno)
 188 #define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno)
 189 #define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size)
 190 #define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen)
 191 #define GET_SCN_NRELOC(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_nreloc)
 192 #define GET_SCN_NLINNO(abfd, ext)  bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_nlinno)
 193 #define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen)
 194 #define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc)
 195 #define PUT_SCN_NLINNO(abfd,in, ext)  bfd_h_put_32(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno)
 196 #define GET_LINENO_LNNO(abfd, ext)  bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno))
 197 #define PUT_LINENO_LNNO(abfd,val, ext)  bfd_h_put_32(abfd,val,  (bfd_byte *) (ext->l_lnno));
 198
 199
 200
 201 #define SYMENT  struct external_syment
 202 #define SYMESZ  20
 203 #define AUXENT  union external_auxent
 204 #define AUXESZ  20
 205
 206
 207 /********************** RELOCATION DIRECTIVES **********************/
 208
 209 struct external_reloc {
 210   char r_vaddr[4];
 211   char r_symndx[4];
 212   char r_type[2];
 213   char r_offset[2];
 214 };
 215
 216 #define RELOC struct external_reloc
 217 #define RELSZ  12
 218
 219 #define NO_TVNDX