Commit | Line | Data |
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3769ca4c ILT |
1 | /*** coff information for 80960. Origins: Intel corp, natch. */ |
2 | ||
3 | /* NOTE: Tagentries (cf TAGBITS) are no longer used by the 960 */ | |
4 | ||
5 | /********************** FILE HEADER **********************/ | |
6 | ||
7 | struct external_filehdr { | |
8 | char f_magic[2]; /* magic number */ | |
9 | char f_nscns[2]; /* number of sections */ | |
10 | char f_timdat[4]; /* time & date stamp */ | |
11 | char f_symptr[4]; /* file pointer to symtab */ | |
12 | char f_nsyms[4]; /* number of symtab entries */ | |
13 | char f_opthdr[2]; /* sizeof(optional hdr) */ | |
14 | char f_flags[2]; /* flags */ | |
15 | }; | |
16 | ||
17 | #define OMAGIC (0407) /* old impure format. data immediately | |
18 | follows text. both sections are rw. */ | |
19 | #define NMAGIC (0410) /* split i&d, read-only text */ | |
20 | ||
21 | /* | |
22 | * Intel 80960 (I960) processor flags. | |
23 | * F_I960TYPE == mask for processor type field. | |
24 | */ | |
25 | ||
26 | #define F_I960TYPE (0xf000) | |
27 | #define F_I960CORE (0x1000) | |
28 | #define F_I960KB (0x2000) | |
29 | #define F_I960SB (0x2000) | |
30 | #define F_I960MC (0x3000) | |
31 | #define F_I960XA (0x4000) | |
32 | #define F_I960CA (0x5000) | |
33 | #define F_I960KA (0x6000) | |
34 | #define F_I960SA (0x6000) | |
8f6c6a65 | 35 | #define F_I960JX (0x7000) |
3769ca4c ILT |
36 | #define F_I960HX (0x8000) |
37 | ||
38 | ||
39 | /** i80960 Magic Numbers | |
40 | */ | |
41 | ||
42 | #define I960ROMAGIC (0x160) /* read-only text segments */ | |
43 | #define I960RWMAGIC (0x161) /* read-write text segments */ | |
44 | ||
45 | #define I960BADMAG(x) (((x).f_magic!=I960ROMAGIC) && ((x).f_magic!=I960RWMAGIC)) | |
46 | ||
47 | #define FILHDR struct external_filehdr | |
48 | #define FILHSZ 20 | |
49 | ||
50 | /********************** AOUT "OPTIONAL HEADER" **********************/ | |
51 | ||
52 | typedef struct { | |
53 | unsigned long phys_addr; | |
54 | unsigned long bitarray; | |
55 | } TAGBITS; | |
56 | ||
57 | ||
58 | ||
59 | typedef struct | |
60 | { | |
61 | char magic[2]; /* type of file */ | |
62 | char vstamp[2]; /* version stamp */ | |
63 | char tsize[4]; /* text size in bytes, padded to FW bdry*/ | |
64 | char dsize[4]; /* initialized data " " */ | |
65 | char bsize[4]; /* uninitialized data " " */ | |
66 | char entry[4]; /* entry pt. */ | |
67 | char text_start[4]; /* base of text used for this file */ | |
68 | char data_start[4]; /* base of data used for this file */ | |
69 | char tagentries[4]; /* number of tag entries to follow */ | |
70 | } | |
71 | AOUTHDR; | |
72 | ||
73 | /* return a pointer to the tag bits array */ | |
74 | ||
75 | #define TAGPTR(aout) ((TAGBITS *) (&(aout.tagentries)+1)) | |
76 | ||
77 | /* compute size of a header */ | |
78 | ||
79 | /*#define AOUTSZ(aout) (sizeof(AOUTHDR)+(aout.tagentries*sizeof(TAGBITS)))*/ | |
8f6c6a65 ILT |
80 | #define AOUTSZ 32 |
81 | #define AOUTHDRSZ 32 | |
3769ca4c ILT |
82 | |
83 | ||
84 | /********************** SECTION HEADER **********************/ | |
85 | ||
86 | ||
87 | struct external_scnhdr { | |
88 | char s_name[8]; /* section name */ | |
89 | char s_paddr[4]; /* physical address, aliased s_nlib */ | |
90 | char s_vaddr[4]; /* virtual address */ | |
91 | char s_size[4]; /* section size */ | |
92 | char s_scnptr[4]; /* file ptr to raw data for section */ | |
93 | char s_relptr[4]; /* file ptr to relocation */ | |
94 | char s_lnnoptr[4]; /* file ptr to line numbers */ | |
95 | char s_nreloc[2]; /* number of relocation entries */ | |
96 | char s_nlnno[2]; /* number of line number entries*/ | |
97 | char s_flags[4]; /* flags */ | |
98 | char s_align[4]; /* section alignment */ | |
99 | }; | |
100 | ||
101 | ||
102 | #define SCNHDR struct external_scnhdr | |
8f6c6a65 | 103 | #define SCNHSZ 44 |
3769ca4c ILT |
104 | |
105 | /* | |
106 | * names of "special" sections | |
107 | */ | |
108 | #define _TEXT ".text" | |
109 | #define _DATA ".data" | |
110 | #define _BSS ".bss" | |
111 | ||
112 | /********************** LINE NUMBERS **********************/ | |
113 | ||
114 | /* 1 line number entry for every "breakpointable" source line in a section. | |
115 | * Line numbers are grouped on a per function basis; first entry in a function | |
116 | * grouping will have l_lnno = 0 and in place of physical address will be the | |
117 | * symbol table index of the function name. | |
118 | */ | |
119 | struct external_lineno { | |
120 | union { | |
121 | char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/ | |
122 | char l_paddr[4]; /* (physical) address of line number */ | |
123 | } l_addr; | |
124 | char l_lnno[2]; /* line number */ | |
125 | char padding[2]; /* force alignment */ | |
126 | }; | |
127 | ||
128 | ||
129 | #define LINENO struct external_lineno | |
130 | #define LINESZ 8 | |
131 | ||
132 | ||
133 | /********************** SYMBOLS **********************/ | |
134 | ||
135 | #define E_SYMNMLEN 8 /* # characters in a symbol name */ | |
136 | #define E_FILNMLEN 14 /* # characters in a file name */ | |
137 | #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ | |
138 | ||
139 | struct external_syment | |
140 | { | |
141 | union { | |
142 | char e_name[E_SYMNMLEN]; | |
143 | struct { | |
144 | char e_zeroes[4]; | |
145 | char e_offset[4]; | |
146 | } e; | |
147 | } e; | |
148 | char e_value[4]; | |
149 | char e_scnum[2]; | |
150 | char e_flags[2]; | |
151 | char e_type[4]; | |
152 | char e_sclass[1]; | |
153 | char e_numaux[1]; | |
154 | char pad2[2]; | |
155 | }; | |
156 | ||
157 | ||
158 | ||
159 | ||
160 | #define N_BTMASK (0x1f) | |
161 | #define N_TMASK (0x60) | |
162 | #define N_BTSHFT (5) | |
163 | #define N_TSHIFT (2) | |
164 | ||
165 | union external_auxent { | |
166 | struct { | |
167 | char x_tagndx[4]; /* str, un, or enum tag indx */ | |
168 | union { | |
169 | struct { | |
170 | char x_lnno[2]; /* declaration line number */ | |
171 | char x_size[2]; /* str/union/array size */ | |
172 | } x_lnsz; | |
173 | char x_fsize[4]; /* size of function */ | |
174 | } x_misc; | |
175 | union { | |
176 | struct { /* if ISFCN, tag, or .bb */ | |
177 | char x_lnnoptr[4]; /* ptr to fcn line # */ | |
178 | char x_endndx[4]; /* entry ndx past block end */ | |
179 | } x_fcn; | |
180 | struct { /* if ISARY, up to 4 dimen. */ | |
181 | char x_dimen[E_DIMNUM][2]; | |
182 | } x_ary; | |
183 | } x_fcnary; | |
184 | char x_tvndx[2]; /* tv index */ | |
185 | } x_sym; | |
186 | ||
187 | union { | |
188 | char x_fname[E_FILNMLEN]; | |
189 | struct { | |
190 | char x_zeroes[4]; | |
191 | char x_offset[4]; | |
192 | } x_n; | |
193 | } x_file; | |
194 | ||
195 | struct { | |
196 | char x_scnlen[4]; /* section length */ | |
197 | char x_nreloc[2]; /* # relocation entries */ | |
198 | char x_nlinno[2]; /* # line numbers */ | |
199 | } x_scn; | |
200 | ||
201 | struct { | |
202 | char x_tvfill[4]; /* tv fill value */ | |
203 | char x_tvlen[2]; /* length of .tv */ | |
204 | char x_tvran[2][2]; /* tv range */ | |
205 | } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ | |
206 | ||
207 | /****************************************** | |
208 | * I960-specific *2nd* aux. entry formats | |
209 | ******************************************/ | |
210 | struct { | |
211 | /* This is a very old typo that keeps getting propagated. */ | |
212 | #define x_stdindx x_stindx | |
213 | char x_stindx[4]; /* sys. table entry */ | |
214 | } x_sc; /* system call entry */ | |
215 | ||
216 | struct { | |
217 | char x_balntry[4]; /* BAL entry point */ | |
218 | } x_bal; /* BAL-callable function */ | |
219 | ||
220 | struct { | |
221 | char x_timestamp[4]; /* time stamp */ | |
222 | char x_idstring[20]; /* producer identity string */ | |
223 | } x_ident; /* Producer ident info */ | |
224 | ||
225 | }; | |
226 | ||
227 | ||
228 | ||
229 | #define SYMENT struct external_syment | |
8f6c6a65 | 230 | #define SYMESZ 24 |
3769ca4c | 231 | #define AUXENT union external_auxent |
8f6c6a65 | 232 | #define AUXESZ 24 |
3769ca4c ILT |
233 | |
234 | # define _ETEXT "_etext" | |
235 | ||
236 | /********************** RELOCATION DIRECTIVES **********************/ | |
237 | ||
238 | struct external_reloc { | |
239 | char r_vaddr[4]; | |
240 | char r_symndx[4]; | |
241 | char r_type[2]; | |
242 | char pad[2]; | |
243 | }; | |
244 | ||
8f6c6a65 | 245 | /* r_type values for the i960. */ |
3769ca4c | 246 | |
8f6c6a65 ILT |
247 | /* The i960 uses R_RELLONG, which is defined in internal.h as 0x11. |
248 | It is an absolute 32 bit relocation. */ | |
3769ca4c | 249 | |
8f6c6a65 ILT |
250 | #define R_IPRMED (0x19) /* 24-bit ip-relative relocation */ |
251 | #define R_OPTCALL (0x1b) /* 32-bit optimizable call (leafproc/sysproc) */ | |
252 | #define R_OPTCALLX (0x1c) /* 64-bit optimizable call (leafproc/sysproc) */ | |
3769ca4c ILT |
253 | |
254 | #define RELOC struct external_reloc | |
255 | #define RELSZ 12 | |
256 |