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 44typedef 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} 58AOUTHDR; 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 90struct 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