aboutsummaryrefslogtreecommitdiff
path: root/include/coff/m88k.h
blob: c6e45decdc1f9766c9f4e634a37626936b064279 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
/* coff information for 88k bcs
   
   Copyright (C) 2001-2015 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

#define DO_NOT_DEFINE_SCNHDR
#define L_LNNO_SIZE 4
#define DO_NOT_DEFINE_SYMENT
#define DO_NOT_DEFINE_AUXENT
#include "coff/external.h"

#define MC88MAGIC  0540           /* 88k BCS executable */
#define MC88DMAGIC 0541           /* DG/UX executable   */
#define MC88OMAGIC 0555	          /* Object file        */

#define MC88BADMAG(x) (((x).f_magic != MC88MAGIC) \
                    && ((x).f_magic != MC88DMAGIC) \
                    && ((x).f_magic != MC88OMAGIC))

#define PAGEMAGIC3   0414 /* Split i&d, zero mapped */
#define PAGEMAGICBCS 0413

/********************** SECTION HEADER **********************/

struct external_scnhdr 
{
  char		s_name[8];	/* section name			*/
  char		s_paddr[4];	/* physical address, aliased s_nlib */
  char		s_vaddr[4];	/* virtual address		*/
  char		s_size[4];	/* section size			*/
  char		s_scnptr[4];	/* file ptr to raw data for section */
  char		s_relptr[4];	/* file ptr to relocation	*/
  char		s_lnnoptr[4];	/* file ptr to line numbers	*/
  char		s_nreloc[4];	/* number of relocation entries	*/
  char		s_nlnno[4];	/* number of line number entries*/
  char		s_flags[4];	/* flags			*/
};

#define	SCNHDR	struct external_scnhdr
#define	SCNHSZ	44

/* Names of "special" sections.  */
#define _TEXT   ".text"
#define _DATA   ".data"
#define _BSS    ".bss"
#define _COMMENT ".comment"


/********************** SYMBOLS **********************/

#define E_SYMNMLEN	8	/* # characters in a symbol name	*/
#define E_FILNMLEN	14	/* # characters in a file name		*/
#define E_DIMNUM	4	/* # array dimensions in auxiliary entry */

struct external_syment 
{
  union
  {
    char e_name[E_SYMNMLEN];

    struct
    {
      char e_zeroes[4];
      char e_offset[4];
    } e;

  } e;

  char e_value[4];
  char e_scnum[2];
  char e_type[2];
  char e_sclass[1];
  char e_numaux[1];
  char pad2[2];
};

#define N_BTMASK	017
#define N_TMASK		060
#define N_BTSHFT	4
#define N_TSHIFT	2

/* Note that this isn't the same shape as other coffs */
union external_auxent
{
  struct
  {
    char x_tagndx[4];		/* str, un, or enum tag indx */
    /* 4 */
    
    union
    {
      char x_fsize[4];		/* size of function */

      struct
      {
	char  x_lnno[4];	/* declaration line number */
	char  x_size[4];	/* str/union/array size */
      } x_lnsz;

    } x_misc;
    
    /* 12 */
    union
    {
      struct 			/* if ISFCN, tag, or .bb */
      {
	char x_lnnoptr[4];	/* ptr to fcn line # */
	char x_endndx[4];		/* entry ndx past block end */
      } x_fcn;

      struct 			/* if ISARY, up to 4 dimen. */
      {
	char x_dimen[E_DIMNUM][2];
      } x_ary;

    } x_fcnary;
    /* 20 */
    
  } x_sym;
  
  union
  {
    char x_fname[E_FILNMLEN];

    struct
    {
      char x_zeroes[4];
      char x_offset[4];
    } x_n;

  } x_file;
  
  struct
  {
    char x_scnlen[4];		/* section length */
    char x_nreloc[4];		/* # relocation entries */
    char x_nlinno[4];		/* # line numbers */
  } x_scn;
  
  struct
  {
    char x_tvfill[4];		/* tv fill value */
    char x_tvlen[2];		/* length of .tv */
    char x_tvran[2][2];		/* tv range */
  } x_tv;			/* info about .tv section (in auxent of symbol .tv)) */
};

#define GET_LNSZ_SIZE(abfd, ext) \
  H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_size)
#define GET_LNSZ_LNNO(abfd, ext) \
  H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno)
#define PUT_LNSZ_LNNO(abfd, in, ext) \
  H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_lnno)
#define PUT_LNSZ_SIZE(abfd, in, ext) \
  H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_size)
#define GET_SCN_NRELOC(abfd, ext) \
  H_GET_32 (abfd, ext->x_scn.x_nreloc)
#define GET_SCN_NLINNO(abfd, ext) \
  H_GET_32 (abfd, ext->x_scn.x_nlinno)
#define PUT_SCN_NRELOC(abfd, in, ext) \
  H_PUT_32 (abfd, in, ext->x_scn.x_nreloc)
#define PUT_SCN_NLINNO(abfd, in, ext) \
  H_PUT_32 (abfd,in, ext->x_scn.x_nlinno)

#define	SYMENT	struct external_syment
#define	SYMESZ	20
#define	AUXENT	union external_auxent
#define	AUXESZ	20

/********************** RELOCATION DIRECTIVES **********************/

struct external_reloc
{
  char r_vaddr[4];
  char r_symndx[4];
  char r_type[2];
  char r_offset[2];
};

#define RELOC struct external_reloc
#define RELSZ  12

#define NO_TVNDX