1/* coff information for Apollo M68K
2
3   Copyright 2001, 2010 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
45typedef 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}
59AOUTHDR;
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
91struct 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) */
126