compilers/linux86-0.16.17/ld/obj.h

   1 /* obj.h - constants for Introl object modules */
   2
   3 /* Copyright (C) 1994 Bruce Evans */
   4
   5 #define OBJ_H
   6
   7 #ifndef OMAGIC
   8 # ifdef I80386
   9 #  define OMAGIC 0x86A3
  10 # endif
  11
  12 # ifdef I8086
  13 #  define OMAGIC 0x86A0
  14 # endif
  15
  16 # ifdef MC6809
  17 #  define OMAGIC 0x5331
  18 # endif
  19 #endif
  20
  21 #ifdef LONG_OFFSETS
  22 # define cntooffset cnu4
  23 # define offtocn u4cn
  24 #else
  25 # define cntooffset cnu2
  26 # define offtocn u2cn
  27 #endif
  28
  29 #ifdef MC6809                   /* temp don't support alignment at all */
  30 # define ld_roundup( num, boundary, type ) (num)
  31 #else
  32 # define ld_roundup( num, boundary, type ) \
  33         (((num) + ((boundary) - 1)) & (type) ~((boundary) - 1))
  34 #endif
  35
  36 #define MAX_OFFSET_SIZE 4
  37 #define NSEG 16
  38
  39 /* flag values |SZ|LXXXX|N|E|I|R|A|SEGM|, X not used */
  40
  41 #define A_MASK 0x0010           /* absolute */
  42 #define C_MASK 0x0020           /* common (internal only) */
  43 #define E_MASK 0x0080           /* exported */
  44 #define I_MASK 0x0040           /* imported */
  45 #define N_MASK 0x0100           /* entry point */
  46 #define R_MASK 0x0020           /* relative (in text only) */
  47 #define SEGM_MASK 0x000F        /* segment (if not absolute) */
  48 #define SA_MASK 0x2000          /* offset is storage allocation */
  49 #define SZ_MASK 0xC000          /* size descriptor for value */
  50 #define SZ_SHIFT 14