include/coff/apollo.h

   1 /* coff information for Apollo M68K
   2
   3    Copyright (C) 2001-2017 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 3 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,
  18    MA 02110-1301, USA.  */
  19
  20 #define DO_NOT_DEFINE_AOUTHDR
  21 #define L_LNNO_SIZE 2
  22 #include "coff/external.h"
  23
  24 /* Motorola 68000/68008/68010/68020 */
  25 #define MC68MAGIC       0520
  26 #define MC68KWRMAGIC    0520    /* writeable text segments */
  27 #define MC68TVMAGIC     0521
  28 #define MC68KROMAGIC    0521    /* readonly shareable text segments */
  29 #define MC68KPGMAGIC    0522    /* demand paged text segments */
  30 #define M68MAGIC        0210
  31 #define M68TVMAGIC      0211
  32
  33 /* Apollo 68000-based machines have a different magic number. This comes
  34  * from /usr/include/apollo/filehdr.h
  35  */
  36 #define APOLLOM68KMAGIC 0627
  37
  38 #define OMAGIC M68MAGIC
  39 #define M68KBADMAG(x) (((x).f_magic!=MC68MAGIC) && ((x).f_magic!=MC68KWRMAGIC) && ((x).f_magic!=MC68TVMAGIC) && \
  40   ((x).f_magic!=MC68KROMAGIC) && ((x).f_magic!=MC68KPGMAGIC) && ((x).f_magic!=M68MAGIC) && ((x).f_magic!=M68TVMAGIC)  && \
  41   ((x).f_magic!=APOLLOM68KMAGIC) )
  42
  43 /********************** AOUT "OPTIONAL HEADER" **********************/
  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   char  o_sri[4];               /* Apollo specific - .sri data pointer */
  56   char  o_inlib[4];             /* Apollo specific - .inlib data pointer */
  57   char  vid[8];                 /* Apollo specific - 64 bit version ID */
  58 }
  59 AOUTHDR;
  60
  61 #define APOLLO_COFF_VERSION_NUMBER 1 /* the value of the aouthdr magic */
  62 #define AOUTHDRSZ 44
  63 #define AOUTSZ 44
  64
  65 /* Apollo allowa for larger section names by allowing
  66    them to be in the string table.  */
  67
  68 /* If s_zeores is all zeroes, s_offset gives the real
  69    location of the name in the string table.  */
  70
  71 #define s_zeroes section_name.s_name
  72 #define s_offset (section_name.s_name+4)
  73
  74 /* More names of "special" sections.  */
  75 #define _TV     ".tv"
  76 #define _INIT   ".init"
  77 #define _FINI   ".fini"
  78 #define _LINES  ".lines"
  79 #define _BLOCKS ".blocks"
  80 #define _SRI    ".sri"                  /* Static Resource Information (systype,
  81  et al.) */
  82 #define _MIR    ".mir"                  /* Module Information Records  */
  83 #define _APTV   ".aptv"                 /* Apollo-style transfer vectors. */
  84 #define _INLIB  ".inlib"                /* Shared Library information */
  85 #define _RWDI   ".rwdi"         /* Read/write data initialization directives for
  86  compressed sections */
  87 #define _UNWIND ".unwind"               /* Stack unwind information */
  88
  89 /********************** RELOCATION DIRECTIVES **********************/
  90
  91 struct external_reloc
  92 {
  93   char r_vaddr[4];
  94   char r_symndx[4];
  95   char r_type[2];
  96 #ifdef M68K_COFF_OFFSET
  97   char r_offset[4];
  98 #endif
  99
 100 };
 101
 102 #define RELOC struct external_reloc
 103
 104 #ifdef M68K_COFF_OFFSET
 105 #define RELSZ 14
 106 #else
 107 #define RELSZ 10
 108 #endif
 109
 110 /* Apollo specific STYP flags */
 111
 112 #define STYP_RELOCATED_NOT_LOADED 0x00010000    /* Section is relocated normally during linking, but need
 113                                                    not be loaded during program execution */
 114 #define STYP_DEBUG              0x00020000      /* debug section */
 115 #define STYP_OVERLAY            0x00040000      /* Section is overlayed */
 116 #define STYP_INSTRUCTION        0x00200000      /* Section contains executable code */
 117
 118 #define STYP_ZERO               0x00800000      /* Section is initialized to zero */
 119 #define STYP_INSTALLED          0x02000000      /* Section should be installable in KGT */
 120 #define STYP_LOOK_INSTALLED     0x04000000      /* Look for section in KGT */
 121 #define STYP_SECALIGN1          0x08000000      /* Specially aligned section */
 122 #define STYP_SECALIGN2          0x10000000      /*      "       "       "    */
 123 #define STYP_COMPRESSED         0x20000000      /* No section data per se (s_scnptr = 0), but there are
 124                                                    initialization directives for it in .rwdi section
 125                                                    (used in conjunction with STYP_BSS) */