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  sizeof(FILHDR)
  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 (sizeof(AOUTHDR))
  48
  49 /********************** STORAGE CLASSES **********************/
  50
  51 #define C_EFCN          -1      /* physical end of function     */
  52 #define C_NULL          0
  53 #define C_AUTO          1       /* automatic variable           */
  54 #define C_EXT           2       /* external symbol              */
  55 #define C_STAT          3       /* static                       */
  56 #define C_REG           4       /* register variable            */
  57 #define C_EXTDEF        5       /* external definition          */
  58 #define C_LABEL         6       /* label                        */
  59 #define C_ULABEL        7       /* undefined label              */
  60 #define C_MOS           8       /* member of structure          */
  61 #define C_ARG           9       /* function argument            */
  62 #define C_STRTAG        10      /* structure tag                */
  63 #define C_MOU           11      /* member of union              */
  64 #define C_UNTAG         12      /* union tag                    */
  65 #define C_TPDEF         13      /* type definition              */
  66 #define C_USTATIC       14      /* undefined static             */
  67 #define C_ENTAG         15      /* enumeration tag              */
  68 #define C_MOE           16      /* member of enumeration        */
  69 #define C_REGPARM       17      /* register parameter           */
  70 #define C_FIELD         18      /* bit field                    */
  71 #define C_BLOCK         100     /* ".bb" or ".eb"               */
  72 #define C_FCN           101     /* ".bf" or ".ef"               */
  73 #define C_EOS           102     /* end of structure             */
  74 #define C_FILE          103     /* file name                    */
  75 #define C_LINE          104     /* line # reformatted as symbol table entry */
  76 #define C_ALIAS         105     /* duplicate tag                */
  77 #define C_HIDDEN        106     /* ext symbol in dmert public lib */
  78 #define C_SHADOW        107     /* shadow symbol                */
  79 #define C_VERSION       108     /* coff version symbol          */
  80
  81
  82 /********************** SECTION HEADER **********************/
  83
  84
  85 struct external_scnhdr
  86 {
  87   char          s_name[8];      /* section name                 */
  88   char          s_paddr[4];     /* physical address, aliased s_nlib */
  89   char          s_vaddr[4];     /* virtual address              */
  90   char          s_size[4];      /* section size                 */
  91   char          s_scnptr[4];    /* file ptr to raw data for section */
  92   char          s_relptr[4];    /* file ptr to relocation       */
  93   char          s_lnnoptr[4];   /* file ptr to line numbers     */
  94   char          s_nreloc[4];    /* number of relocation entries */
  95   char          s_nlnno[4];     /* number of line number entries*/
  96   char          s_flags[4];     /* flags                        */
  97 };
  98
  99
 100 #define SCNHDR  struct external_scnhdr
 101 #define SCNHSZ  sizeof(SCNHDR)
 102
 103 /*
 104  * names of "special" sections
 105  */
 106 #define _TEXT   ".text"
 107 #define _DATA   ".data"
 108 #define _BSS    ".bss"
 109
 110 /********************** LINE NUMBERS **********************/
 111
 112 /* 1 line number entry for every "breakpointable" source line in a section.
 113  * Line numbers are grouped on a per function basis; first entry in a function
 114  * grouping will have l_lnno = 0 and in place of physical address will be the
 115  * symbol table index of the function name.
 116  */
 117 struct external_lineno{
 118         union {
 119                 char l_symndx[4];       /* function name symbol index, iff l_lnno == 0*/
 120                 char l_paddr[4];        /* (physical) address of line number    */
 121         } l_addr;
 122
 123         char l_lnno[4];
 124
 125 };
 126
 127 #define LINENO  struct external_lineno
 128 #define LINESZ  8
 129
 130
 131 /********************** SYMBOLS **********************/
 132
 133 #define E_SYMNMLEN      8       /* # characters in a symbol name        */
 134 #define E_FILNMLEN      14      /* # characters in a file name          */
 135 #define E_DIMNUM        4       /* # array dimensions in auxiliary entry */
 136
 137 struct external_syment
 138 {
 139   union {
 140     char e_name[E_SYMNMLEN];
 141     struct {
 142       char e_zeroes[4];
 143       char e_offset[4];
 144     } e;
 145   } e;
 146   char e_value[4];
 147   char e_scnum[2];
 148   char e_type[2];
 149   char e_sclass[1];
 150   char e_numaux[1];
 151   char pad2[2];
 152 };
 153
 154
 155
 156
 157 #define N_BTMASK        017
 158 #define N_TMASK         060
 159 #define N_BTSHFT        4
 160 #define N_TSHIFT        2
 161
 162
 163 /* Note that this isn't the same shape as other coffs */
 164 union external_auxent {
 165   struct {
 166     char x_tagndx[4];           /* str, un, or enum tag indx */
 167     /* 4 */
 168     union {
 169       char x_fsize[4];          /* size of function */
 170       struct {
 171         char  x_lnno[4];        /* declaration line number */
 172         char  x_size[4];        /* str/union/array size */
 173       } x_lnsz;
 174     } x_misc;
 175     struct {                    /* if ISFCN, tag, or .bb */
 176       char x_lnnoptr[4];        /* ptr to fcn line # */
 177       char x_endndx[4];         /* entry ndx past block end */
 178     } x_fcn;
 179
 180     /* 12 */
 181     union {
 182       struct {                  /* if ISARY, up to 4 dimen. */
 183         char x_dimen[E_DIMNUM][2];
 184       } x_ary;
 185     } x_fcnary;
 186     /* 20 */
 187
 188   } x_sym;
 189
 190   union {
 191     char x_fname[E_FILNMLEN];
 192     struct {
 193       char x_zeroes[4];
 194       char x_offset[4];
 195     } x_n;
 196   } x_file;
 197
 198   struct {
 199     char x_scnlen[4];           /* section length */
 200     char x_nreloc[4];           /* # relocation entries */
 201     char x_nlinno[4];           /* # line numbers */
 202   } x_scn;
 203
 204   struct {
 205     char x_tvfill[4];           /* tv fill value */
 206     char x_tvlen[2];            /* length of .tv */
 207     char x_tvran[2][2];         /* tv range */
 208   } x_tv;                       /* info about .tv section (in auxent of symbol .tv)) */
 209
 210 };
 211
 212 #define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *)ext->x_sym.x_fcn.x_lnnoptr)
 213 #define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcn.x_endndx)
 214 #define PUT_FCN_LNNOPTR(abfd, in, ext)  bfd_h_put_32(abfd,  in, (bfd_byte *) ext->x_sym.x_fcn.x_lnnoptr)
 215 #define PUT_FCN_ENDNDX(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *)   ext->x_sym.x_fcn.x_endndx)
 216 #define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size)
 217 #define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno)
 218 #define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno)
 219 #define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size)
 220 #define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen)
 221 #define GET_SCN_NRELOC(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_nreloc)
 222 #define GET_SCN_NLINNO(abfd, ext)  bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_nlinno)
 223 #define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen)
 224 #define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc)
 225 #define PUT_SCN_NLINNO(abfd,in, ext)  bfd_h_put_32(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno)
 226
 227 #define SYMENT  struct external_syment
 228 #define SYMESZ  20
 229 #define AUXENT  union external_auxent
 230 #define AUXESZ  20
 231
 232
 233 /********************** RELOCATION DIRECTIVES **********************/
 234
 235 struct external_reloc {
 236   char r_vaddr[4];
 237   char r_symndx[4];
 238   char r_type[2];
 239   char r_offset[2];
 240 };
 241
 242 #define RELOC struct external_reloc
 243 #define RELSZ  12
 244
 245 #define DEFAULT_SECTION_ALIGNMENT 8 /* double word */
 246
 247 #define NO_TVNDX