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

Subversion Repositories or1k

[/] [or1k/] [trunk/] [gdb-5.0/] [include/] [coff/] [we32k.h] - Blame information for rev 1765

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 106 markom
/*** coff information for we32k */
2
 
3
/********************** FILE HEADER **********************/
4
 
5
struct external_filehdr {
6
        char f_magic[2];        /* magic number                 */
7
        char f_nscns[2];        /* number of sections           */
8
        char f_timdat[4];       /* time & date stamp            */
9
        char f_symptr[4];       /* file pointer to symtab       */
10
        char f_nsyms[4];        /* number of symtab entries     */
11
        char f_opthdr[2];       /* sizeof(optional hdr)         */
12
        char f_flags[2];        /* flags                        */
13
};
14
 
15
 
16
/* Bits for f_flags:
17
 *      F_RELFLG        relocation info stripped from file
18
 *      F_EXEC          file is executable (no unresolved external references)
19
 *      F_LNNO          line numbers stripped from file
20
 *      F_LSYMS         local symbols stripped from file
21
 *      F_AR32WR        file has byte ordering of an AR32WR machine (e.g. vax)
22
 */
23
 
24
#define F_RELFLG        (0x0001)
25
#define F_EXEC          (0x0002)
26
#define F_LNNO          (0x0004)
27
#define F_LSYMS         (0x0008)
28
#define F_BM32B         (0020000)
29
#define F_BM32MAU       (0040000)
30
 
31
#define WE32KMAGIC      0x170   /* we32k sans transfer vector */
32
#define FBOMAGIC        0x170   /* we32k sans transfer vector */
33
#define MTVMAGIC        0x171   /* we32k with transfer vector */
34
#define RBOMAGIC        0x172   /* reserved */
35
#define WE32KBADMAG(x) (((x).f_magic != WE32KMAGIC) \
36
                        && ((x).f_magic != FBOMAGIC) \
37
                        && ((x).f_magic != RBOMAGIC) \
38
                        && ((x).f_magic != MTVMAGIC))
39
 
40
#define FILHDR  struct external_filehdr
41
#define FILHSZ  20
42
 
43
 
44
/********************** AOUT "OPTIONAL HEADER" **********************/
45
 
46
 
47
typedef struct
48
{
49
  char  magic[2];               /* type of file                         */
50
  char  vstamp[2];              /* version stamp                        */
51
  char  tsize[4];               /* text size in bytes, padded to FW bdry*/
52
  char  dsize[4];               /* initialized data "  "                */
53
  char  bsize[4];               /* uninitialized data "   "             */
54
  char  entry[4];               /* entry pt.                            */
55
  char  text_start[4];          /* base of text used for this file */
56
  char  data_start[4];          /* base of data used for this file */
57
}
58
AOUTHDR;
59
 
60
#define AOUTSZ 28
61
#define AOUTHDRSZ 28
62
 
63
/********************** SECTION HEADER **********************/
64
 
65
 
66
struct external_scnhdr {
67
        char            s_name[8];      /* section name                 */
68
        char            s_paddr[4];     /* physical address, aliased s_nlib */
69
        char            s_vaddr[4];     /* virtual address              */
70
        char            s_size[4];      /* section size                 */
71
        char            s_scnptr[4];    /* file ptr to raw data for section */
72
        char            s_relptr[4];    /* file ptr to relocation       */
73
        char            s_lnnoptr[4];   /* file ptr to line numbers     */
74
        char            s_nreloc[2];    /* number of relocation entries */
75
        char            s_nlnno[2];     /* number of line number entries*/
76
        char            s_flags[4];     /* flags                        */
77
};
78
 
79
#define SCNHDR  struct external_scnhdr
80
#define SCNHSZ  40
81
 
82
/*
83
 * names of "special" sections
84
 */
85
#define _TEXT   ".text"
86
#define _DATA   ".data"
87
#define _BSS    ".bss"
88
#define _TV     ".tv"
89
#define _INIT   ".init"
90
#define _FINI   ".fini"
91
 
92
/********************** LINE NUMBERS **********************/
93
 
94
/* 1 line number entry for every "breakpointable" source line in a section.
95
 * Line numbers are grouped on a per function basis; first entry in a function
96
 * grouping will have l_lnno = 0 and in place of physical address will be the
97
 * symbol table index of the function name.
98
 */
99
struct external_lineno {
100
        union {
101
                char l_symndx[4];       /* function name symbol index, iff l_lnno == 0*/
102
                char l_paddr[4];        /* (physical) address of line number    */
103
        } l_addr;
104
        char l_lnno[2]; /* line number          */
105
};
106
 
107
 
108
#define LINENO  struct external_lineno
109
#define LINESZ  6
110
 
111
 
112
/********************** SYMBOLS **********************/
113
 
114
#define E_SYMNMLEN      8       /* # characters in a symbol name        */
115
#define E_FILNMLEN      14      /* # characters in a file name          */
116
#define E_DIMNUM        4       /* # array dimensions in auxiliary entry */
117
 
118
struct external_syment
119
{
120
  union {
121
    char e_name[E_SYMNMLEN];
122
    struct {
123
      char e_zeroes[4];
124
      char e_offset[4];
125
    } e;
126
  } e;
127
  char e_value[4];
128
  char e_scnum[2];
129
  char e_type[2];
130
  char e_sclass[1];
131
  char e_numaux[1];
132
};
133
 
134
#define N_BTMASK        (0xf)
135
#define N_TMASK         (0x30)
136
#define N_BTSHFT        (4)
137
#define N_TSHIFT        (2)
138
 
139
union external_auxent {
140
        struct {
141
                char x_tagndx[4];       /* str, un, or enum tag indx */
142
                union {
143
                        struct {
144
                            char  x_lnno[2]; /* declaration line number */
145
                            char  x_size[2]; /* str/union/array size */
146
                        } x_lnsz;
147
                        char x_fsize[4];        /* size of function */
148
                } x_misc;
149
                union {
150
                        struct {                /* if ISFCN, tag, or .bb */
151
                            char x_lnnoptr[4];  /* ptr to fcn line # */
152
                            char x_endndx[4];   /* entry ndx past block end */
153
                        } x_fcn;
154
                        struct {                /* if ISARY, up to 4 dimen. */
155
                            char x_dimen[E_DIMNUM][2];
156
                        } x_ary;
157
                } x_fcnary;
158
                char x_tvndx[2];                /* tv index */
159
        } x_sym;
160
 
161
        union {
162
                char x_fname[E_FILNMLEN];
163
                struct {
164
                        char x_zeroes[4];
165
                        char x_offset[4];
166
                } x_n;
167
        } x_file;
168
 
169
        struct {
170
                char x_scnlen[4];                       /* section length */
171
                char x_nreloc[2];       /* # relocation entries */
172
                char x_nlinno[2];       /* # line numbers */
173
        } x_scn;
174
 
175
        struct {
176
                char x_tvfill[4];       /* tv fill value */
177
                char x_tvlen[2];        /* length of .tv */
178
                char x_tvran[2][2];     /* tv range */
179
        } x_tv;         /* info about .tv section (in auxent of symbol .tv)) */
180
 
181
 
182
};
183
 
184
#define SYMENT  struct external_syment
185
#define SYMESZ  18      
186
#define AUXENT  union external_auxent
187
#define AUXESZ  18
188
 
189
 
190
#       define _ETEXT   "etext"
191
 
192
 
193
/********************** RELOCATION DIRECTIVES **********************/
194
 
195
 
196
 
197
struct external_reloc {
198
  char r_vaddr[4];
199
  char r_symndx[4];
200
  char r_type[2];
201
};
202
 
203
 
204
#define RELOC struct external_reloc
205
#define RELSZ 10
206
 

powered by: WebSVN 2.1.0

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