1/* coff information for 88k bcs
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_SCNHDR
20#define L_LNNO_SIZE 4
21#define DO_NOT_DEFINE_SYMENT
22#define DO_NOT_DEFINE_AUXENT
23#include "coff/external.h"
24
25#define MC88MAGIC  0540           /* 88k BCS executable */
26#define MC88DMAGIC 0541           /* DG/UX executable   */
27#define MC88OMAGIC 0555	          /* Object file        */
28
29#define MC88BADMAG(x) (((x).f_magic != MC88MAGIC) \
30                    && ((x).f_magic != MC88DMAGIC) \
31                    && ((x).f_magic != MC88OMAGIC))
32
33#define PAGEMAGIC3   0414 /* Split i&d, zero mapped */
34#define PAGEMAGICBCS 0413
35
36/********************** SECTION HEADER **********************/
37
38struct external_scnhdr
39{
40  char		s_name[8];	/* section name			*/
41  char		s_paddr[4];	/* physical address, aliased s_nlib */
42  char		s_vaddr[4];	/* virtual address		*/
43  char		s_size[4];	/* section size			*/
44  char		s_scnptr[4];	/* file ptr to raw data for section */
45  char		s_relptr[4];	/* file ptr to relocation	*/
46  char		s_lnnoptr[4];	/* file ptr to line numbers	*/
47  char		s_nreloc[4];	/* number of relocation entries	*/
48  char		s_nlnno[4];	/* number of line number entries*/
49  char		s_flags[4];	/* flags			*/
50};
51
52#define	SCNHDR	struct external_scnhdr
53#define	SCNHSZ	44
54
55/* Names of "special" sections.  */
56#define _TEXT   ".text"
57#define _DATA   ".data"
58#define _BSS    ".bss"
59#define _COMMENT ".comment"
60
61
62/********************** SYMBOLS **********************/
63
64#define E_SYMNMLEN	8	/* # characters in a symbol name	*/
65#define E_FILNMLEN	14	/* # characters in a file name		*/
66#define E_DIMNUM	4	/* # array dimensions in auxiliary entry */
67
68struct external_syment
69{
70  union
71  {
72    char e_name[E_SYMNMLEN];
73
74    struct
75    {
76      char e_zeroes[4];
77      char e_offset[4];
78    } e;
79
80  } e;
81
82  char e_value[4];
83  char e_scnum[2];
84  char e_type[2];
85  char e_sclass[1];
86  char e_numaux[1];
87  char pad2[2];
88};
89
90#define N_BTMASK	017
91#define N_TMASK		060
92#define N_BTSHFT	4
93#define N_TSHIFT	2
94
95/* Note that this isn't the same shape as other coffs */
96union external_auxent
97{
98  struct
99  {
100    char x_tagndx[4];		/* str, un, or enum tag indx */
101    /* 4 */
102
103    union
104    {
105      char x_fsize[4];		/* size of function */
106
107      struct
108      {
109	char  x_lnno[4];	/* declaration line number */
110	char  x_size[4];	/* str/union/array size */
111      } x_lnsz;
112
113    } x_misc;
114
115    /* 12 */
116    union
117    {
118      struct 			/* if ISFCN, tag, or .bb */
119      {
120	char x_lnnoptr[4];	/* ptr to fcn line # */
121	char x_endndx[4];		/* entry ndx past block end */
122      } x_fcn;
123
124      struct 			/* if ISARY, up to 4 dimen. */
125      {
126	char x_dimen[E_DIMNUM][2];
127      } x_ary;
128
129    } x_fcnary;
130    /* 20 */
131
132  } x_sym;
133
134  union
135  {
136    char x_fname[E_FILNMLEN];
137
138    struct
139    {
140      char x_zeroes[4];
141      char x_offset[4];
142    } x_n;
143
144  } x_file;
145
146  struct
147  {
148    char x_scnlen[4];		/* section length */
149    char x_nreloc[4];		/* # relocation entries */
150    char x_nlinno[4];		/* # line numbers */
151  } x_scn;
152
153  struct
154  {
155    char x_tvfill[4];		/* tv fill value */
156    char x_tvlen[2];		/* length of .tv */
157    char x_tvran[2][2];		/* tv range */
158  } x_tv;			/* info about .tv section (in auxent of symbol .tv)) */
159};
160
161#define GET_LNSZ_SIZE(abfd, ext) \
162  H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_size)
163#define GET_LNSZ_LNNO(abfd, ext) \
164  H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno)
165#define PUT_LNSZ_LNNO(abfd, in, ext) \
166  H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_lnno)
167#define PUT_LNSZ_SIZE(abfd, in, ext) \
168  H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_size)
169#define GET_SCN_NRELOC(abfd, ext) \
170  H_GET_32 (abfd, ext->x_scn.x_nreloc)
171#define GET_SCN_NLINNO(abfd, ext) \
172  H_GET_32 (abfd, ext->x_scn.x_nlinno)
173#define PUT_SCN_NRELOC(abfd, in, ext) \
174  H_PUT_32 (abfd, in, ext->x_scn.x_nreloc)
175#define PUT_SCN_NLINNO(abfd, in, ext) \
176  H_PUT_32 (abfd,in, ext->x_scn.x_nlinno)
177
178#define	SYMENT	struct external_syment
179#define	SYMESZ	20
180#define	AUXENT	union external_auxent
181#define	AUXESZ	20
182
183/********************** RELOCATION DIRECTIVES **********************/
184
185struct external_reloc
186{
187  char r_vaddr[4];
188  char r_symndx[4];
189  char r_type[2];
190  char r_offset[2];
191};
192
193#define RELOC struct external_reloc
194#define RELSZ  12
195
196#define NO_TVNDX
197