OpenCores
URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [branches/] [oc/] [gdb-5.0/] [include/] [coff/] [m88k.h] - Blame information for rev 1765

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 106 markom
/*** coff information for 88k bcs */
2
 
3
/********************** FILE HEADER **********************/
4
struct external_filehdr {
5
        char f_magic[2];        /* magic number                 */
6
        char f_nscns[2];        /* number of sections           */
7
        char f_timdat[4];       /* time & date stamp            */
8
        char f_symptr[4];       /* file pointer to symtab       */
9
        char f_nsyms[4];        /* number of symtab entries     */
10
        char f_opthdr[2];       /* sizeof(optional hdr)         */
11
        char f_flags[2];        /* flags                        */
12
};
13
 
14
#define MC88MAGIC  0540           /* 88k BCS executable */
15
#define MC88DMAGIC 0541           /* DG/UX executable   */
16
#define MC88OMAGIC 0555           /* Object file        */
17
 
18
#define MC88BADMAG(x) (((x).f_magic!=MC88MAGIC) &&((x).f_magic!=MC88DMAGIC) && ((x).f_magic != MC88OMAGIC))
19
 
20
#define FILHDR  struct external_filehdr
21
#define FILHSZ  20
22
 
23
 
24
/********************** AOUT "OPTIONAL HEADER" **********************/
25
 
26
 
27
#define PAGEMAGIC3 0414 /* Split i&d, zero mapped */
28
#define PAGEMAGICBCS 0413
29
 
30
 
31
typedef struct
32
{
33
  char  magic[2];               /* type of file                         */
34
  char  vstamp[2];              /* version stamp                        */
35
  char  tsize[4];               /* text size in bytes, padded to FW bdry*/
36
  char  dsize[4];               /* initialized data "  "                */
37
  char  bsize[4];               /* uninitialized data "   "             */
38
  char  entry[4];               /* entry pt.                            */
39
  char  text_start[4];          /* base of text used for this file */
40
  char  data_start[4];          /* base of data used for this file */
41
}
42
AOUTHDR;
43
 
44
 
45
/* compute size of a header */
46
 
47
#define AOUTSZ 28
48
#define AOUTHDRSZ 28
49
 
50
 
51
/********************** SECTION HEADER **********************/
52
 
53
 
54
struct external_scnhdr
55
{
56
  char          s_name[8];      /* section name                 */
57
  char          s_paddr[4];     /* physical address, aliased s_nlib */
58
  char          s_vaddr[4];     /* virtual address              */
59
  char          s_size[4];      /* section size                 */
60
  char          s_scnptr[4];    /* file ptr to raw data for section */
61
  char          s_relptr[4];    /* file ptr to relocation       */
62
  char          s_lnnoptr[4];   /* file ptr to line numbers     */
63
  char          s_nreloc[4];    /* number of relocation entries */
64
  char          s_nlnno[4];     /* number of line number entries*/
65
  char          s_flags[4];     /* flags                        */
66
};
67
 
68
 
69
#define SCNHDR  struct external_scnhdr
70
#define SCNHSZ  44
71
 
72
/*
73
 * names of "special" sections
74
 */
75
#define _TEXT   ".text"
76
#define _DATA   ".data"
77
#define _BSS    ".bss"
78
#define _COMMENT ".comment"
79
 
80
/********************** LINE NUMBERS **********************/
81
 
82
/* 1 line number entry for every "breakpointable" source line in a section.
83
 * Line numbers are grouped on a per function basis; first entry in a function
84
 * grouping will have l_lnno = 0 and in place of physical address will be the
85
 * symbol table index of the function name.
86
 */
87
struct external_lineno{
88
        union {
89
                char l_symndx[4];       /* function name symbol index, iff l_lnno == 0*/
90
                char l_paddr[4];        /* (physical) address of line number    */
91
        } l_addr;
92
 
93
        char l_lnno[4];
94
 
95
};
96
 
97
#define LINENO  struct external_lineno
98
#define LINESZ  8
99
 
100
 
101
/********************** SYMBOLS **********************/
102
 
103
#define E_SYMNMLEN      8       /* # characters in a symbol name        */
104
#define E_FILNMLEN      14      /* # characters in a file name          */
105
#define E_DIMNUM        4       /* # array dimensions in auxiliary entry */
106
 
107
struct external_syment
108
{
109
  union {
110
    char e_name[E_SYMNMLEN];
111
    struct {
112
      char e_zeroes[4];
113
      char e_offset[4];
114
    } e;
115
  } e;
116
  char e_value[4];
117
  char e_scnum[2];
118
  char e_type[2];
119
  char e_sclass[1];
120
  char e_numaux[1];
121
  char pad2[2];
122
};
123
 
124
 
125
 
126
 
127
#define N_BTMASK        017
128
#define N_TMASK         060
129
#define N_BTSHFT        4
130
#define N_TSHIFT        2
131
 
132
 
133
/* Note that this isn't the same shape as other coffs */
134
union external_auxent {
135
  struct {
136
    char x_tagndx[4];           /* str, un, or enum tag indx */
137
    /* 4 */
138
    union {
139
      char x_fsize[4];          /* size of function */
140
      struct {
141
        char  x_lnno[4];        /* declaration line number */
142
        char  x_size[4];        /* str/union/array size */
143
      } x_lnsz;
144
    } x_misc;
145
 
146
    /* 12 */
147
    union {
148
      struct {                  /* if ISFCN, tag, or .bb */
149
        char x_lnnoptr[4];      /* ptr to fcn line # */
150
        char x_endndx[4];               /* entry ndx past block end */
151
      } x_fcn;
152
      struct {                  /* if ISARY, up to 4 dimen. */
153
        char x_dimen[E_DIMNUM][2];
154
      } x_ary;
155
    } x_fcnary;
156
    /* 20 */
157
 
158
  } x_sym;
159
 
160
  union {
161
    char x_fname[E_FILNMLEN];
162
    struct {
163
      char x_zeroes[4];
164
      char x_offset[4];
165
    } x_n;
166
  } x_file;
167
 
168
  struct {
169
    char x_scnlen[4];           /* section length */
170
    char x_nreloc[4];           /* # relocation entries */
171
    char x_nlinno[4];           /* # line numbers */
172
  } x_scn;
173
 
174
  struct {
175
    char x_tvfill[4];           /* tv fill value */
176
    char x_tvlen[2];            /* length of .tv */
177
    char x_tvran[2][2];         /* tv range */
178
  } x_tv;                       /* info about .tv section (in auxent of symbol .tv)) */
179
 
180
};
181
 
182
#define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *)ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
183
#define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx)
184
#define PUT_FCN_LNNOPTR(abfd, in, ext)  bfd_h_put_32(abfd,  in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
185
#define PUT_FCN_ENDNDX(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *)   ext->x_sym.x_fcnary.x_fcn.x_endndx)
186
#define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size)
187
#define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno)
188
#define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno)
189
#define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size)
190
#define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen)
191
#define GET_SCN_NRELOC(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_nreloc)
192
#define GET_SCN_NLINNO(abfd, ext)  bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_nlinno)
193
#define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen)
194
#define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc)
195
#define PUT_SCN_NLINNO(abfd,in, ext)  bfd_h_put_32(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno)
196
#define GET_LINENO_LNNO(abfd, ext)  bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno))
197
#define PUT_LINENO_LNNO(abfd,val, ext)  bfd_h_put_32(abfd,val,  (bfd_byte *) (ext->l_lnno));
198
 
199
 
200
 
201
#define SYMENT  struct external_syment
202
#define SYMESZ  20
203
#define AUXENT  union external_auxent
204
#define AUXESZ  20
205
 
206
 
207
/********************** RELOCATION DIRECTIVES **********************/
208
 
209
struct external_reloc {
210
  char r_vaddr[4];
211
  char r_symndx[4];
212
  char r_type[2];
213
  char r_offset[2];
214
};
215
 
216
#define RELOC struct external_reloc
217
#define RELSZ  12
218
 
219
#define NO_TVNDX

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.