aboutsummaryrefslogtreecommitdiff
path: root/include/coff/mcore.h
blob: 0fa319c977f56542aed1c69e3c3427811e01e540 (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
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
/* Motorola MCore support for BFD.
   Copyright (C) 1999 Free Software Foundation, Inc.

This file is part of BFD, the Binary File Descriptor library.

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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

/* This file holds definitions specific to the MCore COFF/PE ABI. */

#ifndef _COFF_MORE_H
#define _COFF_MORE_H


#define E_DIMNUM	4	/* # array dimensions in auxiliary entry */

#define IMAGE_REL_MCORE_ABSOLUTE          	0x0000
#define IMAGE_REL_MCORE_ADDR32            	0x0001
#define IMAGE_REL_MCORE_PCREL_IMM8BY4		0x0002
#define IMAGE_REL_MCORE_PCREL_IMM11BY2		0x0003
#define IMAGE_REL_MCORE_PCREL_IMM4BY2		0x0004
#define IMAGE_REL_MCORE_PCREL_32		0x0005
#define IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2	0x0006
#define IMAGE_REL_MCORE_RVA			0x0007

#define PEMCORE

typedef struct 
{
  char 	magic      [2];		/* type of file				*/
  char	vstamp     [2];		/* version stamp			*/
  char	tsize      [4];		/* text size in bytes, padded to FW bdry*/
  char	dsize      [4];		/* initialized data "  "		*/
  char	bsize      [4];		/* uninitialized data "   "		*/
  char	entry      [4];		/* entry pt.				*/
  char 	text_start [4];		/* base of text used for this file */
  char 	data_start [4];		/* base of data used for this file */
}
AOUTHDR;

#define AOUTSZ 28
#define AOUTHDRSZ 28

#define OMAGIC          0404    /* object files, eg as output */
#define ZMAGIC          0413    /* demand load format, eg normal ld output */
#define STMAGIC		0401	/* target shlib */
#define SHMAGIC		0443	/* host   shlib */

/* From winnt.h */
#define IMAGE_NT_OPTIONAL_HDR_MAGIC        0x10b


/* Define some NT default values. */
#define NT_SECTION_ALIGNMENT 0x1000
#define NT_FILE_ALIGNMENT    0x200  
#define NT_DEF_RESERVE       0x100000
#define NT_DEF_COMMIT        0x1000


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

#define RELOC struct external_reloc
#define RELSZ 14

#define	MCOREMAGIC	0xb00  /* I just made this up */ 

#define MCOREBADMAG(x) (((x).f_magic!= MCOREMAGIC))

struct external_filehdr
{
  char f_magic  [2];	/* magic number			*/
  char f_nscns  [2];	/* number of sections		*/
  char f_timdat [4];	/* time & date stamp		*/
  char f_symptr [4];	/* file pointer to symtab	*/
  char f_nsyms  [4];	/* number of symtab entries	*/
  char f_opthdr [2];	/* sizeof(optional hdr)		*/
  char f_flags  [2];	/* flags			*/
};

#define	FILHDR	struct external_filehdr
#define	FILHSZ	20


#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];
};

#define N_BTMASK	0xf
#define N_TMASK		0x30
#define N_BTSHFT	4
#define N_TSHIFT	2

union external_auxent
{
  struct
  {
    char x_tagndx [4];		/* str, un, or enum tag indx */
    
    union
    {
      struct
      {
	char  x_lnno [2]; 	/* declaration line number */
	char  x_size [2]; 	/* str/union/array size */
      } x_lnsz;

      char x_fsize [4];		/* size of function */

    } x_misc;

    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;

    char x_tvndx [2];		/* tv index */

  } 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     [2];	/* # relocation entries */
    char x_nlinno     [2];	/* # line numbers */
    char x_checksum   [4];	/* section COMDAT checksum */
    char x_associated [2];	/* COMDAT associated section index */
    char x_comdat     [1];	/* COMDAT selection number */
  } 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	SYMENT	struct external_syment
#define	SYMESZ	18	
#define	AUXENT	union external_auxent
#define	AUXESZ	18

/* 1 line number entry for every "breakpointable" source line in a section.
   Line numbers are grouped on a per function basis; first entry in a function
   grouping will have l_lnno = 0 and in place of physical address will be the
   symbol table index of the function name.  */
struct external_lineno
{
  union
  {
    char l_symndx [4];	/* function name symbol index, iff l_lnno == 0*/
    char l_paddr  [4];	/* (physical) address of line number	*/
  } l_addr;

  char l_lnno [2];	/* line number		*/
};

#define	LINENO	struct external_lineno
#define	LINESZ	6

#define GET_LINENO_LNNO(abfd, ext)     bfd_h_get_32 (abfd, (bfd_byte *) (ext->l_lnno));
#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_32 (abfd, val, (bfd_byte *) (ext->l_lnno));

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  [2];	/* number of relocation entries	*/
  char	s_nlnno   [2];	/* number of line number entries*/
  char	s_flags   [4];	/* flags			*/
};

#define	SCNHDR	struct external_scnhdr
#define	SCNHSZ	40

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



#endif /* __COFF_MCORE_H */