include/coff/tic80.h

   1 /* coff information for TI TMS320C80 (MVP)
   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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  18
  19 #define DO_NOT_DEFINE_FILHDR
  20 #define DO_NOT_DEFINE_SCNHDR
  21 #define L_LNNO_SIZE 2
  22 #include "coff/external.h"
  23
  24 /********************** FILE HEADER **********************/
  25
  26 struct external_filehdr
  27   {
  28     char f_magic[2];    /* magic number                 */
  29     char f_nscns[2];    /* number of sections           */
  30     char f_timdat[4];   /* time & date stamp            */
  31     char f_symptr[4];   /* file pointer to symtab       */
  32     char f_nsyms[4];    /* number of symtab entries     */
  33     char f_opthdr[2];   /* sizeof(optional hdr)         */
  34     char f_flags[2];    /* flags                        */
  35     char f_target_id[2];/* target id (TIc80 specific)   */
  36 };
  37
  38 #define TIC80_ARCH_MAGIC        0x0C1   /* Goes in the file header magic number field */
  39 #define TIC80_TARGET_ID         0x95    /* Goes in the target id field */
  40
  41 #define TIC80BADMAG(x) ((x).f_magic != TIC80_ARCH_MAGIC)
  42
  43 #define FILHDR  struct external_filehdr
  44 #define FILHSZ  22
  45
  46 #define TIC80_AOUTHDR_MAGIC     0x108   /* Goes in the optional file header magic number field */
  47
  48 /********************** SECTION HEADER **********************/
  49
  50 struct external_scnhdr
  51 {
  52         char            s_name[8];      /* section name                 */
  53         char            s_paddr[4];     /* physical address, aliased s_nlib */
  54         char            s_vaddr[4];     /* virtual address              */
  55         char            s_size[4];      /* section size                 */
  56         char            s_scnptr[4];    /* file ptr to raw data for section */
  57         char            s_relptr[4];    /* file ptr to relocation       */
  58         char            s_lnnoptr[4];   /* file ptr to line numbers     */
  59         char            s_nreloc[2];    /* number of relocation entries */
  60         char            s_nlnno[2];     /* number of line number entries*/
  61         char            s_flags[2];     /* flags                        */
  62         char            s_reserved[1];  /* reserved (TIc80 specific)    */
  63         char            s_mempage[1];   /* memory page number (TIc80)   */
  64 };
  65
  66 /* Names of "special" sections.  */
  67 #define _TEXT   ".text"
  68 #define _DATA   ".data"
  69 #define _BSS    ".bss"
  70 #define _CINIT  ".cinit"
  71 #define _CONST  ".const"
  72 #define _SWITCH ".switch"
  73 #define _STACK  ".stack"
  74 #define _SYSMEM ".sysmem"
  75
  76 #define SCNHDR  struct external_scnhdr
  77 #define SCNHSZ  40
  78
  79 /* FIXME - need to correlate external_auxent with
  80    TIc80 Code Generation Tools User's Guide, CG:A-25 */
  81
  82 /********************** RELOCATION DIRECTIVES **********************/
  83
  84 /* The external reloc has an offset field, because some of the reloc
  85    types on the h8 don't have room in the instruction for the entire
  86    offset - eg the strange jump and high page addressing modes.  */
  87
  88 struct external_reloc
  89 {
  90   char r_vaddr[4];
  91   char r_symndx[4];
  92   char r_reserved[2];
  93   char r_type[2];
  94 };
  95
  96 #define RELOC struct external_reloc
  97 #define RELSZ 12
  98
  99 /* TIc80 relocation types. */
 100
 101 #define R_ABS           0x00            /* Absolute address - no relocation */
 102 #define R_RELLONGX      0x11            /* PP: 32 bits, direct */
 103 #define R_PPBASE        0x34            /* PP: Global base address type */
 104 #define R_PPLBASE       0x35            /* PP: Local base address type */
 105 #define R_PP15          0x38            /* PP: Global 15 bit offset */
 106 #define R_PP15W         0x39            /* PP: Global 15 bit offset divided by 4 */
 107 #define R_PP15H         0x3A            /* PP: Global 15 bit offset divided by 2 */
 108 #define R_PP16B         0x3B            /* PP: Global 16 bit offset for bytes */
 109 #define R_PPL15         0x3C            /* PP: Local 15 bit offset */
 110 #define R_PPL15W        0x3D            /* PP: Local 15 bit offset divided by 4 */
 111 #define R_PPL15H        0x3E            /* PP: Local 15 bit offset divided by 2 */
 112 #define R_PPL16B        0x3F            /* PP: Local 16 bit offset for bytes */
 113 #define R_PPN15         0x40            /* PP: Global 15 bit negative offset */
 114 #define R_PPN15W        0x41            /* PP: Global 15 bit negative offset divided by 4 */
 115 #define R_PPN15H        0x42            /* PP: Global 15 bit negative offset divided by 2 */
 116 #define R_PPN16B        0x43            /* PP: Global 16 bit negative byte offset */
 117 #define R_PPLN15        0x44            /* PP: Local 15 bit negative offset */
 118 #define R_PPLN15W       0x45            /* PP: Local 15 bit negative offset divided by 4 */
 119 #define R_PPLN15H       0x46            /* PP: Local 15 bit negative offset divided by 2 */
 120 #define R_PPLN16B       0x47            /* PP: Local 16 bit negative byte offset */
 121 #define R_MPPCR15W      0x4E            /* MP: 15 bit PC-relative divided by 4 */
 122 #define R_MPPCR         0x4F            /* MP: 32 bit PC-relative divided by 4 */