include/coff/apollo.h

   1 /* coff information for Apollo M68K
   2
   3    Copyright 2001 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software
  17    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  18
  19 #define DO_NOT_DEFINE_AOUTHDR
  20 #define L_LNNO_SIZE 2
  21 #include "coff/external.h"
  22
  23 /* Motorola 68000/68008/68010/68020 */
  24 #define MC68MAGIC       0520
  25 #define MC68KWRMAGIC    0520    /* writeable text segments */
  26 #define MC68TVMAGIC     0521
  27 #define MC68KROMAGIC    0521    /* readonly shareable text segments */
  28 #define MC68KPGMAGIC    0522    /* demand paged text segments */
  29 #define M68MAGIC        0210
  30 #define M68TVMAGIC      0211
  31
  32 /* Apollo 68000-based machines have a different magic number. This comes
  33  * from /usr/include/apollo/filehdr.h
  34  */
  35 #define APOLLOM68KMAGIC 0627
  36
  37 #define OMAGIC M68MAGIC
  38 #define M68KBADMAG(x) (((x).f_magic!=MC68MAGIC) && ((x).f_magic!=MC68KWRMAGIC) && ((x).f_magic!=MC68TVMAGIC) && \
  39   ((x).f_magic!=MC68KROMAGIC) && ((x).f_magic!=MC68KPGMAGIC) && ((x).f_magic!=M68MAGIC) && ((x).f_magic!=M68TVMAGIC)  && \
  40   ((x).f_magic!=APOLLOM68KMAGIC) )
  41
  42 /********************** AOUT "OPTIONAL HEADER" **********************/
  43
  44 typedef struct
  45 {
  46   char  magic[2];               /* type of file                         */
  47   char  vstamp[2];              /* version stamp                        */
  48   char  tsize[4];               /* text size in bytes, padded to FW bdry*/
  49   char  dsize[4];               /* initialized data "  "                */
  50   char  bsize[4];               /* uninitialized data "   "             */
  51   char  entry[4];               /* entry pt.                            */
  52   char  text_start[4];          /* base of text used for this file */
  53   char  data_start[4];          /* base of data used for this file */
  54   char  o_sri[4];               /* Apollo specific - .sri data pointer */
  55   char  o_inlib[4];             /* Apollo specific - .inlib data pointer */
  56   char  vid[8];                 /* Apollo specific - 64 bit version ID */
  57 }
  58 AOUTHDR;
  59
  60 #define APOLLO_COFF_VERSION_NUMBER 1 /* the value of the aouthdr magic */
  61 #define AOUTHDRSZ 44
  62 #define AOUTSZ 44
  63
  64 /* Apollo allowa for larger section names by allowing
  65    them to be in the string table.  */
  66
  67 /* If s_zeores is all zeroes, s_offset gives the real
  68    location of the name in the string table.  */
  69
  70 #define s_zeroes section_name.s_name
  71 #define s_offset (section_name.s_name+4)
  72
  73 /* More names of "special" sections.  */
  74 #define _TV     ".tv"
  75 #define _INIT   ".init"
  76 #define _FINI   ".fini"
  77 #define _LINES  ".lines"
  78 #define _BLOCKS ".blocks"
  79 #define _SRI    ".sri"                  /* Static Resource Information (systype,
  80  et al.) */
  81 #define _MIR    ".mir"                  /* Module Information Records  */
  82 #define _APTV   ".aptv"                 /* Apollo-style transfer vectors. */
  83 #define _INLIB  ".inlib"                /* Shared Library information */
  84 #define _RWDI   ".rwdi"         /* Read/write data initialization directives for
  85  compressed sections */
  86 #define _UNWIND ".unwind"               /* Stack unwind information */
  87
  88 /********************** RELOCATION DIRECTIVES **********************/
  89
  90 struct external_reloc
  91 {
  92   char r_vaddr[4];
  93   char r_symndx[4];
  94   char r_type[2];
  95 #ifdef M68K_COFF_OFFSET
  96   char r_offset[4];
  97 #endif
  98
  99 };
 100
 101 #define RELOC struct external_reloc
 102
 103 #ifdef M68K_COFF_OFFSET
 104 #define RELSZ 14
 105 #else
 106 #define RELSZ 10
 107 #endif
 108
 109 /* Apollo specific STYP flags */
 110
 111 #define STYP_RELOCATED_NOT_LOADED 0x00010000    /* Section is relocated normally during linking, but need
 112                                                    not be loaded during program execution */
 113 #define STYP_DEBUG              0x00020000      /* debug section */
 114 #define STYP_OVERLAY            0x00040000      /* Section is overlayed */
 115 #define STYP_INSTRUCTION        0x00200000      /* Section contains executable code */
 116
 117 #define STYP_ZERO               0x00800000      /* Section is initialized to zero */
 118 #define STYP_INSTALLED          0x02000000      /* Section should be installable in KGT */
 119 #define STYP_LOOK_INSTALLED     0x04000000      /* Look for section in KGT */
 120 #define STYP_SECALIGN1          0x08000000      /* Specially aligned section */
 121 #define STYP_SECALIGN2          0x10000000      /*      "       "       "    */
 122 #define STYP_COMPRESSED         0x20000000      /* No section data per se (s_scnptr = 0), but there are
 123                                                    initialization directives for it in .rwdi section
 124                                                    (used in conjunction with STYP_BSS) */