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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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) */ 125