include/coff/i860.h

   1 /* This file was hacked from i386.h   [dolan@ssd.intel.com] */
   2
   3 /*** coff information for Intel 860.  */
   4
   5
   6 /********************** FILE HEADER **********************/
   7
   8 struct external_filehdr {
   9         char f_magic[2];        /* magic number                 */
  10         char f_nscns[2];        /* number of sections           */
  11         char f_timdat[4];       /* time & date stamp            */
  12         char f_symptr[4];       /* file pointer to symtab       */
  13         char f_nsyms[4];        /* number of symtab entries     */
  14         char f_opthdr[2];       /* sizeof(optional hdr)         */
  15         char f_flags[2];        /* flags                        */
  16 };
  17
  18
  19 /* Bits for f_flags:
  20  *      F_RELFLG        relocation info stripped from file
  21  *      F_EXEC          file is executable (no unresolved external references)
  22  *      F_LNNO          line numbers stripped from file
  23  *      F_LSYMS         local symbols stripped from file
  24  *      F_AR32WR        file has byte ordering of an AR32WR machine (e.g. vax)
  25  */
  26
  27 #define F_RELFLG        (0x0001)
  28 #define F_EXEC          (0x0002)
  29 #define F_LNNO          (0x0004)
  30 #define F_LSYMS         (0x0008)
  31
  32
  33
  34 #define I860MAGIC       0x14d
  35
  36 #define I860BADMAG(x)   ((x).f_magic != I860MAGIC)
  37
  38 #define FILHDR  struct external_filehdr
  39 #define FILHSZ  sizeof(FILHDR)
  40
  41
  42 /********************** AOUT "OPTIONAL HEADER" **********************/
  43
  44
  45 typedef struct
  46 {
  47   char  magic[2];               /* type of file                         */
  48   char  vstamp[2];              /* version stamp                        */
  49   char  tsize[4];               /* text size in bytes, padded to FW bdry*/
  50   char  dsize[4];               /* initialized data "  "                */
  51   char  bsize[4];               /* uninitialized data "   "             */
  52   char  entry[4];               /* entry pt.                            */
  53   char  text_start[4];          /* base of text used for this file */
  54   char  data_start[4];          /* base of data used for this file */
  55 }
  56 AOUTHDR;
  57
  58
  59 #define AOUTSZ (sizeof(AOUTHDR))
  60
  61 /* FIXME: What are the a.out magic numbers?  */
  62
  63 /********************** SECTION HEADER **********************/
  64
  65
  66 struct external_scnhdr {
  67         char            s_name[8];      /* section name                 */
  68         char            s_paddr[4];     /* physical address, aliased s_nlib */
  69         char            s_vaddr[4];     /* virtual address              */
  70         char            s_size[4];      /* section size                 */
  71         char            s_scnptr[4];    /* file ptr to raw data for section */
  72         char            s_relptr[4];    /* file ptr to relocation       */
  73         char            s_lnnoptr[4];   /* file ptr to line numbers     */
  74         char            s_nreloc[2];    /* number of relocation entries */
  75         char            s_nlnno[2];     /* number of line number entries*/
  76         char            s_flags[4];     /* flags                        */
  77 };
  78
  79 #define SCNHDR  struct external_scnhdr
  80 #define SCNHSZ  sizeof(SCNHDR)
  81
  82 /*
  83  * names of "special" sections
  84  */
  85 #define _TEXT   ".text"
  86 #define _DATA   ".data"
  87 #define _BSS    ".bss"
  88 #define _COMMENT ".comment"
  89 #define _LIB ".lib"
  90
  91 /********************** LINE NUMBERS **********************/
  92
  93 /* 1 line number entry for every "breakpointable" source line in a section.
  94  * Line numbers are grouped on a per function basis; first entry in a function
  95  * grouping will have l_lnno = 0 and in place of physical address will be the
  96  * symbol table index of the function name.
  97  */
  98 struct external_lineno {
  99         union {
 100                 char l_symndx[4];       /* function name symbol index, iff l_lnno == 0*/
 101                 char l_paddr[4];        /* (physical) address of line number    */
 102         } l_addr;
 103         char l_lnno[2]; /* line number          */
 104 };
 105
 106
 107 #define LINENO  struct external_lineno
 108 #define LINESZ  6
 109
 110
 111 /********************** SYMBOLS **********************/
 112
 113 #define E_SYMNMLEN      8       /* # characters in a symbol name        */
 114 #define E_FILNMLEN      14      /* # characters in a file name          */
 115 #define E_DIMNUM        4       /* # array dimensions in auxiliary entry */
 116
 117 struct external_syment
 118 {
 119   union {
 120     char e_name[E_SYMNMLEN];
 121     struct {
 122       char e_zeroes[4];
 123       char e_offset[4];
 124     } e;
 125   } e;
 126   char e_value[4];
 127   char e_scnum[2];
 128   char e_type[2];
 129   char e_sclass[1];
 130   char e_numaux[1];
 131 };
 132
 133 #define N_BTMASK        (0xf)
 134 #define N_TMASK         (0x30)
 135 #define N_BTSHFT        (4)
 136 #define N_TSHIFT        (2)
 137
 138 union external_auxent {
 139         struct {
 140                 char x_tagndx[4];       /* str, un, or enum tag indx */
 141                 union {
 142                         struct {
 143                             char  x_lnno[2]; /* declaration line number */
 144                             char  x_size[2]; /* str/union/array size */
 145                         } x_lnsz;
 146                         char x_fsize[4];        /* size of function */
 147                 } x_misc;
 148                 union {
 149                         struct {                /* if ISFCN, tag, or .bb */
 150                             char x_lnnoptr[4];  /* ptr to fcn line # */
 151                             char x_endndx[4];   /* entry ndx past block end */
 152                         } x_fcn;
 153                         struct {                /* if ISARY, up to 4 dimen. */
 154                             char x_dimen[E_DIMNUM][2];
 155                         } x_ary;
 156                 } x_fcnary;
 157                 char x_tvndx[2];                /* tv index */
 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[2];       /* # relocation entries */
 171                 char x_nlinno[2];       /* # 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
 183 #define SYMENT  struct external_syment
 184 #define SYMESZ  18
 185 #define AUXENT  union external_auxent
 186 #define AUXESZ  18
 187
 188
 189 #       define _ETEXT   "etext"
 190
 191
 192 /********************** RELOCATION DIRECTIVES **********************/
 193
 194
 195
 196 struct external_reloc {
 197   char r_vaddr[4];
 198   char r_symndx[4];
 199   char r_type[2];
 200 };
 201
 202
 203 #define RELOC struct external_reloc
 204 #define RELSZ 10