include/coff/ia64.h

   1 /*** coff information for HP/Intel IA-64.  */
   2
   3
   4 /********************** FILE HEADER **********************/
   5
   6 struct external_filehdr {
   7         char f_magic[2];        /* magic number                 */
   8         char f_nscns[2];        /* number of sections           */
   9         char f_timdat[4];       /* time & date stamp            */
  10         char f_symptr[4];       /* file pointer to symtab       */
  11         char f_nsyms[4];        /* number of symtab entries     */
  12         char f_opthdr[2];       /* sizeof(optional hdr)         */
  13         char f_flags[2];        /* flags                        */
  14 };
  15
  16 #define IA64MAGIC       0x200
  17
  18 #define IA64BADMAG(x)   (((x).f_magic != IA64MAGIC))
  19
  20 /* Bits for f_flags:
  21  *      F_RELFLG        relocation info stripped from file
  22  *      F_EXEC          file is executable (no unresolved external references)
  23  *      F_LNNO          line numbers stripped from file
  24  *      F_LSYMS         local symbols stripped from file
  25  *      F_AR32WR        file has byte ordering of an AR32WR machine (e.g. vax)
  26  */
  27
  28 #define F_RELFLG        (0x0001)
  29 #define F_EXEC          (0x0002)
  30 #define F_LNNO          (0x0004)
  31 #define F_LSYMS         (0x0008)
  32
  33
  34 #define FILHDR  struct external_filehdr
  35 #define FILHSZ  20
  36
  37
  38 /********************** AOUT "OPTIONAL HEADER" **********************/
  39
  40
  41 typedef struct
  42 {
  43   char  magic[2];               /* type of file                         */
  44   char  vstamp[2];              /* version stamp                        */
  45   char  tsize[4];               /* text size in bytes, padded to FW bdry*/
  46   char  dsize[4];               /* initialized data "  "                */
  47   char  bsize[4];               /* uninitialized data "   "             */
  48   char  entry[4];               /* entry pt.                            */
  49   char  text_start[4];          /* base of text used for this file      */
  50 #ifndef BFD64
  51   char  data_start[4];          /* base of data used for this file      */
  52 #endif
  53 }
  54 AOUTHDR;
  55
  56 #define PE32MAGIC       0x10b   /* 32-bit image */
  57 #define PE32PMAGIC      0x20b   /* 32-bit image inside 64-bit address space */
  58
  59 #define PE32PBADMAG(x) (((x).f_magic != PE32PMAGIC))
  60
  61 #define AOUTSZ          108
  62 #define AOUTHDRSZ       108
  63
  64 #define OMAGIC          0404    /* object files, eg as output */
  65 #define ZMAGIC          0413    /* demand load format, eg normal ld output */
  66 #define STMAGIC         0401    /* target shlib */
  67 #define SHMAGIC         0443    /* host   shlib */
  68
  69
  70 /* define some NT default values */
  71 /*  #define NT_IMAGE_BASE        0x400000 moved to internal.h */
  72 #define NT_SECTION_ALIGNMENT 0x1000
  73 #define NT_FILE_ALIGNMENT    0x200
  74 #define NT_DEF_RESERVE       0x100000
  75 #define NT_DEF_COMMIT        0x1000
  76
  77 /********************** SECTION HEADER **********************/
  78
  79
  80 struct external_scnhdr {
  81         char            s_name[8];      /* section name                 */
  82         char            s_paddr[4];     /* physical address, aliased s_nlib */
  83         char            s_vaddr[4];     /* virtual address              */
  84         char            s_size[4];      /* section size                 */
  85         char            s_scnptr[4];    /* file ptr to raw data for section */
  86         char            s_relptr[4];    /* file ptr to relocation       */
  87         char            s_lnnoptr[4];   /* file ptr to line numbers     */
  88         char            s_nreloc[2];    /* number of relocation entries */
  89         char            s_nlnno[2];     /* number of line number entries*/
  90         char            s_flags[4];     /* flags                        */
  91 };
  92
  93 #define SCNHDR  struct external_scnhdr
  94 #define SCNHSZ  40
  95
  96 /*
  97  * names of "special" sections
  98  */
  99 #define _TEXT   ".text"
 100 #define _DATA   ".data"
 101 #define _BSS    ".bss"
 102 #define _COMMENT ".comment"
 103 #define _LIB ".lib"
 104
 105 /********************** LINE NUMBERS **********************/
 106
 107 /* 1 line number entry for every "breakpointable" source line in a section.
 108  * Line numbers are grouped on a per function basis; first entry in a function
 109  * grouping will have l_lnno = 0 and in place of physical address will be the
 110  * symbol table index of the function name.
 111  */
 112 struct external_lineno {
 113         union {
 114                 char l_symndx[4];       /* function name symbol index, iff l_lnno == 0*/
 115                 char l_paddr[4];        /* (physical) address of line number    */
 116         } l_addr;
 117         char l_lnno[2]; /* line number          */
 118 };
 119
 120
 121 #define LINENO  struct external_lineno
 122 #define LINESZ  6
 123
 124
 125 /********************** SYMBOLS **********************/
 126
 127 #define E_SYMNMLEN      8       /* # characters in a symbol name        */
 128 #define E_FILNMLEN      14      /* # characters in a file name          */
 129 #define E_DIMNUM        4       /* # array dimensions in auxiliary entry */
 130
 131 struct external_syment
 132 {
 133   union {
 134     char e_name[E_SYMNMLEN];
 135     struct {
 136       char e_zeroes[4];
 137       char e_offset[4];
 138     } e;
 139   } e;
 140   char e_value[4];
 141   char e_scnum[2];
 142   char e_type[2];
 143   char e_sclass[1];
 144   char e_numaux[1];
 145 };
 146
 147 #define N_BTMASK        (0xf)
 148 #define N_TMASK         (0x30)
 149 #define N_BTSHFT        (4)
 150 #define N_TSHIFT        (2)
 151
 152 union external_auxent {
 153         struct {
 154                 char x_tagndx[4];       /* str, un, or enum tag indx */
 155                 union {
 156                         struct {
 157                             char  x_lnno[2]; /* declaration line number */
 158                             char  x_size[2]; /* str/union/array size */
 159                         } x_lnsz;
 160                         char x_fsize[4];        /* size of function */
 161                 } x_misc;
 162                 union {
 163                         struct {                /* if ISFCN, tag, or .bb */
 164                             char x_lnnoptr[4];  /* ptr to fcn line # */
 165                             char x_endndx[4];   /* entry ndx past block end */
 166                         } x_fcn;
 167                         struct {                /* if ISARY, up to 4 dimen. */
 168                             char x_dimen[E_DIMNUM][2];
 169                         } x_ary;
 170                 } x_fcnary;
 171                 char x_tvndx[2];                /* tv index */
 172         } x_sym;
 173
 174         union {
 175                 char x_fname[E_FILNMLEN];
 176                 struct {
 177                         char x_zeroes[4];
 178                         char x_offset[4];
 179                 } x_n;
 180         } x_file;
 181
 182         struct {
 183                 char x_scnlen[4];       /* section length */
 184                 char x_nreloc[2];       /* # relocation entries */
 185                 char x_nlinno[2];       /* # line numbers */
 186                 char x_checksum[4];     /* section COMDAT checksum */
 187                 char x_associated[2];   /* COMDAT associated section index */
 188                 char x_comdat[1];       /* COMDAT selection number */
 189         } x_scn;
 190
 191         struct {
 192                 char x_tvfill[4];       /* tv fill value */
 193                 char x_tvlen[2];        /* length of .tv */
 194                 char x_tvran[2][2];     /* tv range */
 195         } x_tv;         /* info about .tv section (in auxent of symbol .tv)) */
 196
 197
 198 };
 199
 200 #define SYMENT  struct external_syment
 201 #define SYMESZ  18
 202 #define AUXENT  union external_auxent
 203 #define AUXESZ  18
 204
 205
 206 #       define _ETEXT   "etext"
 207
 208
 209 /********************** RELOCATION DIRECTIVES **********************/
 210
 211
 212
 213 struct external_reloc {
 214   char r_vaddr[4];
 215   char r_symndx[4];
 216   char r_type[2];
 217 };
 218
 219
 220 #define RELOC struct external_reloc
 221 #define RELSZ 10
 222