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3e6e09c0 SC |
1 | /* coff_gnu.h |
2 | Copyright (C) 1987, 1992 Free Software Foundation, Inc. | |
355afbcd | 3 | |
3e6e09c0 | 4 | This file is part of GAS, the GNU Assembler. |
355afbcd | 5 | |
3e6e09c0 SC |
6 | GAS is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
355afbcd | 10 | |
3e6e09c0 SC |
11 | GAS is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
355afbcd | 15 | |
3e6e09c0 SC |
16 | You should have received a copy of the GNU General Public License |
17 | along with GAS; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | /* | |
21 | * At this point I'm sure this file is right for i960 and I'm pretty sure it's | |
22 | * right for a29k, although it hasn't been tested rigorously. Please feel free | |
23 | * to add your own machine's description here. Without that info, it isn't | |
24 | * possible to build cross development tools from elsewhere nor is it easy to | |
25 | * continue to support your machines format. | |
26 | * | |
27 | * The TC_foo ifdef's are mine. They are what gas uses. The other ifdef's | |
28 | * remain for documentation from other scavenged files. xoxorich. | |
29 | */ | |
30 | ||
31 | /********************** FILE HEADER **********************/ | |
32 | ||
355afbcd KR |
33 | struct filehdr |
34 | { | |
35 | unsigned short f_magic; /* magic number */ | |
36 | unsigned short f_nscns; /* number of sections */ | |
37 | long f_timdat; /* time & date stamp */ | |
38 | long f_symptr; /* file pointer to symtab */ | |
39 | long f_nsyms; /* number of symtab entries */ | |
40 | unsigned short f_opthdr; /* sizeof(optional hdr) */ | |
41 | unsigned short f_flags; /* flags */ | |
42 | }; | |
3e6e09c0 SC |
43 | |
44 | /* Bits for f_flags: | |
45 | * F_RELFLG relocation info stripped from file | |
46 | * F_EXEC file is executable (no unresolved externel references) | |
47 | * F_LNNO line nunbers stripped from file | |
48 | * F_LSYMS local symbols stripped from file | |
49 | * F_AR32WR file has byte ordering of an AR32WR machine (e.g. vax) | |
50 | */ | |
51 | #define F_RELFLG (0x0001) | |
52 | #define F_EXEC (0x0002) | |
53 | #define F_LNNO (0x0004) | |
54 | #define F_LSYMS (0x0008) | |
55 | ||
56 | #ifdef TC_I960 | |
355afbcd | 57 | #define F_AR32WR (0x0010)/* File has 32 bits per word, least |
3e6e09c0 SC |
58 | significant byte first. */ |
59 | #else /* TC_I960 */ | |
60 | #define F_AR32WR (0x0100) | |
61 | #endif /* TC_I960 */ | |
62 | ||
355afbcd KR |
63 | #define F_MINMAL (0x0010)/* ??? */ |
64 | #define F_UPDATE (0x0020)/* ??? */ | |
65 | #define F_SWABD (0x0040)/* ??? */ | |
66 | #define F_AR16WR (0x0080)/* File has the byte ordering used by | |
3e6e09c0 | 67 | the PDP*-11/70 processor. */ |
355afbcd | 68 | #define F_AR32W (0x0200)/* File has 32 bits per word, most |
3e6e09c0 SC |
69 | significant byte first. */ |
70 | ||
71 | /* | |
72 | * Intel 80960 (I960) processor flags. | |
355afbcd | 73 | * F_I960TYPE == mask for processor type field. |
3e6e09c0 SC |
74 | */ |
75 | ||
76 | #define F_I960TYPE (0xf000) | |
77 | #define F_I960CORE (0x1000) | |
78 | #define F_I960KB (0x2000) | |
79 | #define F_I960SB (0x2000) | |
80 | #define F_I960MC (0x3000) | |
81 | #define F_I960XA (0x4000) | |
82 | #define F_I960CA (0x5000) | |
83 | #define F_I960KA (0x6000) | |
84 | #define F_I960SA (0x6000) | |
85 | ||
86 | /* | |
87 | * i80960 Magic Numbers | |
88 | */ | |
89 | ||
90 | #define I960ROMAGIC (0x160) /* read-only text segments */ | |
91 | #define I960RWMAGIC (0x161) /* read-write text segments */ | |
92 | ||
93 | #define I960BADMAG(x) (((x).f_magic != I960ROMAGIC) && ((x).f_magic != I960RWMAGIC)) | |
94 | ||
95 | #define SIPFBOMAGIC (0x17a) /* Am29000 (Byte 0 is MSB - Big Endian) */ | |
96 | #define SIPRBOMAGIC (0x17b) /* Am29000 (Byte 0 is LSB - Little Endian) */ | |
97 | ||
98 | #define A29KBADMAG(x) (((x).f_magic != SIPFBOMAGIC) && ((x).f_magic != SIPRBOMAGIC)) | |
99 | ||
100 | #ifdef TE_I386AIX | |
101 | # define I386MAGIC (0x175) /* Danbury AIX C compiler */ | |
102 | # define I386SVMAGIC (0x14c) /* System V C Compiler */ | |
103 | # define I386BADMAG(x) (((x).f_magic!=I386MAGIC) && \ | |
104 | ((x).f_magic!=I386SVMAGIC)) | |
105 | #else /* not TE_I386AIX */ | |
106 | # define I386MAGIC 0x14c | |
107 | # define I386BADMAG(x) (((x).f_magic!=I386MAGIC)) | |
108 | #endif /* not TE_I386AIX */ | |
355afbcd | 109 | |
3e6e09c0 SC |
110 | |
111 | #define FILHDR struct filehdr | |
112 | #define FILHSZ sizeof(FILHDR) | |
113 | ||
114 | ||
115 | /********************** AOUT "OPTIONAL HEADER" **********************/ | |
116 | ||
355afbcd KR |
117 | typedef struct |
118 | { | |
119 | unsigned long phys_addr; | |
120 | unsigned long bitarray; | |
121 | } | |
122 | ||
123 | TAGBITS; | |
3e6e09c0 SC |
124 | |
125 | /* These appear to be used only by exec(2). I don't know who cares | |
126 | about them in a cross development environment. In any case, this | |
127 | is my collection after researching the issue for a few hours. | |
128 | Apparently, most have these have remained essentially unchanged | |
129 | since v7 days, although a few new ones have been added. xoxorich. */ | |
130 | ||
355afbcd KR |
131 | #define BAD0MAGIC (0401) /* (?) "lpd (UNIX/RT)" */ |
132 | #define BAD1MAGIC (0405) /* (?) overlay */ | |
133 | #define OMAGIC (0407) /* old impure format. data immediately | |
3e6e09c0 | 134 | follows text. both sections are rw. */ |
355afbcd KR |
135 | #define NMAGIC (0410) /* split i&d, read-only text */ |
136 | #define A_MAGIC3 (0411) /* (?) "separated I&D" */ | |
137 | #define ZMAGIC (0413) /* like NMAGIC, but demand loaded */ | |
138 | #define PAGEMAGIC2 (0414) /* (?) like ZMAGIC, but address zero | |
3e6e09c0 | 139 | explicitly unmapped. */ |
355afbcd KR |
140 | #define REGMAGIC (0414) /* (?) a PAGEMAGIC2 alias? */ |
141 | #define PAGEMAGIC3 (0415) /* (?) like ZMAGIC, but address zero mapped. */ | |
142 | #define A_MAGIC5 (0437) /* (?) "system overlay, separated I&D" */ | |
3e6e09c0 | 143 | /* intended for non-unix cross development */ |
355afbcd KR |
144 | #define SASMAGIC (010000)/* Single Address Space */ |
145 | #define MASMAGIC (020000)/* (?) "Multiple (separate I & D) Address Spaces" */ | |
146 | ||
147 | typedef struct aouthdr | |
148 | { | |
149 | short magic; /* type of file */ | |
150 | short vstamp; /* version stamp */ | |
151 | unsigned long tsize; /* text size in bytes, padded to FW bdry*/ | |
152 | unsigned long dsize; /* initialized data " " */ | |
153 | unsigned long bsize; /* uninitialized data " " */ | |
3e6e09c0 | 154 | #if U3B |
355afbcd KR |
155 | unsigned long dum1; |
156 | unsigned long dum2; /* pad to entry point */ | |
3e6e09c0 | 157 | #endif |
355afbcd KR |
158 | unsigned long entry; /* entry pt. */ |
159 | unsigned long text_start; /* base of text used for this file */ | |
160 | unsigned long data_start; /* base of data used for this file */ | |
161 | /* CAREFUL: some formats omit the tagentries member. */ | |
162 | unsigned long tagentries; /* number of tag entries to | |
3e6e09c0 | 163 | follow (always zero for i960) */ |
355afbcd KR |
164 | } |
165 | ||
166 | AOUTHDR; | |
3e6e09c0 SC |
167 | |
168 | /* return a pointer to the tag bits array */ | |
169 | ||
170 | #define TAGPTR(aout) ((TAGBITS *) (&(aout.tagentries)+1)) | |
171 | ||
172 | /* compute size of a header */ | |
173 | ||
174 | /*#define AOUTSZ(aout) (sizeof(AOUTHDR)+(aout.tagentries*sizeof(TAGBITS)))*/ | |
175 | #define AOUTSZ (sizeof(AOUTHDR)) | |
176 | ||
177 | ||
178 | /********************** STORAGE CLASSES **********************/ | |
179 | ||
180 | #define C_EFCN -1 /* physical end of function */ | |
181 | #define C_NULL 0 | |
182 | #define C_AUTO 1 /* automatic variable */ | |
183 | #define C_EXT 2 /* external symbol */ | |
184 | #define C_STAT 3 /* static */ | |
185 | #define C_REG 4 /* register variable */ | |
186 | #define C_EXTDEF 5 /* external definition */ | |
187 | #define C_LABEL 6 /* label */ | |
188 | #define C_ULABEL 7 /* undefined label */ | |
189 | #define C_MOS 8 /* member of structure */ | |
190 | #define C_ARG 9 /* function argument */ | |
191 | #define C_STRTAG 10 /* structure tag */ | |
192 | #define C_MOU 11 /* member of union */ | |
193 | #define C_UNTAG 12 /* union tag */ | |
194 | #define C_TPDEF 13 /* type definition */ | |
195 | #define C_USTATIC 14 /* undefined static */ | |
196 | #define C_ENTAG 15 /* enumeration tag */ | |
197 | #define C_MOE 16 /* member of enumeration */ | |
198 | #define C_REGPARM 17 /* register parameter */ | |
199 | #define C_FIELD 18 /* bit field */ | |
200 | ||
201 | #ifdef TC_I960 | |
202 | #define C_AUTOARG 19 /* auto argument */ | |
203 | #define C_LASTENT 20 /* dummy entry (end of block) */ | |
204 | #endif /* TC_I960 */ | |
205 | ||
206 | #ifdef TC_A29K | |
355afbcd KR |
207 | #define C_GLBLREG 19 /* global register */ |
208 | #define C_EXTREG 20 /* external global register */ | |
209 | #define C_DEFREG 21 /* ext. def. of global register */ | |
210 | #define C_STARTOF 22 /* as29 $SIZEOF and $STARTOF symbols */ | |
3e6e09c0 SC |
211 | #endif /* TC_A29K */ |
212 | ||
213 | #define C_BLOCK 100 /* ".bb" or ".eb" */ | |
214 | #define C_FCN 101 /* ".bf" or ".ef" */ | |
215 | #define C_EOS 102 /* end of structure */ | |
216 | #define C_FILE 103 /* file name */ | |
217 | #define C_LINE 104 /* line # reformatted as symbol table entry */ | |
218 | #define C_ALIAS 105 /* duplicate tag */ | |
219 | #define C_HIDDEN 106 /* ext symbol in dmert public lib. like static, | |
220 | used to avoid name conflicts. */ | |
221 | ||
222 | #ifdef TC_I960 | |
223 | /* New storage classes for 80960 */ | |
224 | #define C_SCALL 107 /* Procedure reachable via system call */ | |
225 | /* C_LEAFPROC is obsolete. Use C_LEAFEXT or C_LEAFSTAT */ | |
226 | #define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */ | |
227 | #define C_LEAFEXT 108 | |
228 | #define C_OPTVAR 109 /* Optimized variable */ | |
229 | #define C_DEFINE 110 /* Preprocessor #define */ | |
230 | #define C_PRAGMA 111 /* Advice to compiler or linker */ | |
231 | #define C_SEGMENT 112 /* 80960 segment name */ | |
355afbcd | 232 | #define C_LEAFSTAT 113 /* Static leaf */ |
3e6e09c0 SC |
233 | #endif /* TC_I960 */ |
234 | ||
235 | #ifdef TC_A29K | |
355afbcd | 236 | #define C_SHADOW 107 /* shadow symbol */ |
3e6e09c0 SC |
237 | #endif /* TC_A29K */ |
238 | ||
239 | /********************** SECTION HEADER **********************/ | |
240 | ||
355afbcd KR |
241 | struct scnhdr |
242 | { | |
243 | char s_name[8]; /* section name */ | |
244 | long s_paddr; /* physical address, aliased s_nlib */ | |
245 | long s_vaddr; /* virtual address */ | |
246 | long s_size; /* section size */ | |
247 | long s_scnptr; /* file ptr to raw data for section */ | |
248 | long s_relptr; /* file ptr to relocation */ | |
249 | long s_lnnoptr; /* file ptr to line numbers */ | |
250 | unsigned short s_nreloc; /* number of relocation entries */ | |
251 | unsigned short s_nlnno; /* number of line number entries */ | |
252 | long s_flags; /* flags */ | |
253 | ||
3e6e09c0 | 254 | #ifdef TC_I960 |
355afbcd | 255 | unsigned long s_align; /* section alignment */ |
3e6e09c0 | 256 | #endif /* TC_I960 */ |
355afbcd | 257 | }; |
3e6e09c0 SC |
258 | |
259 | #define SCNHDR struct scnhdr | |
260 | #define SCNHSZ sizeof(SCNHDR) | |
261 | ||
262 | /* | |
263 | * names of "special" sections | |
264 | */ | |
355afbcd KR |
265 | #define _TEXT ".text" /* executable code section */ |
266 | #define _DATA ".data" /* initialized data */ | |
267 | #define _BSS ".bss" /* un-initialized data */ | |
268 | #define _DEBUG ".debug" /* special section used by dbx */ | |
269 | #define _COMMENT ".comment" /* version info */ | |
270 | #define _LIB ".lib" /* shared lib info section */ | |
3e6e09c0 SC |
271 | #define _TV ".tv" |
272 | ||
273 | /* | |
274 | * s_flags "type" | |
275 | */ | |
276 | ||
277 | /* | |
278 | * In instances where it is necessary for a linker to | |
279 | * produce an output file which contains text or data not | |
280 | * based at virtual address 0, e.g. for a ROM, then the | |
281 | * linker should accept address base information as command | |
282 | * input and use PAD sections to skip over unused addresses. | |
283 | * (at least for a29k. Maybe others.) | |
284 | */ | |
285 | ||
355afbcd KR |
286 | #define STYP_REG (0x0000) /* "regular" section: allocated, relocated, loaded */ |
287 | #define STYP_DSECT (0x0001) /* "dummy" section: not allocated, relocated, not loaded */ | |
288 | #define STYP_NOLOAD (0x0002) /* "noload" section: allocated, relocated, not loaded */ | |
289 | #define STYP_GROUP (0x0004) /* "grouped" section: formed of input sections */ | |
290 | #define STYP_PAD (0x0008) /* "padding" section: not allocated, not relocated, loaded */ | |
291 | #define STYP_COPY (0x0010) /* "copy" section: for decision function used by field update; not allocated, not relocated, | |
3e6e09c0 | 292 | loaded; reloc & lineno entries processed normally */ |
355afbcd KR |
293 | #define STYP_TEXT (0x0020) /* section contains text only */ |
294 | #define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile | |
3e6e09c0 SC |
295 | will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will |
296 | update all process invocations. */ | |
355afbcd KR |
297 | #define STYP_DATA (0x0040) /* section contains data only */ |
298 | #define STYP_BSS (0x0080) /* section contains bss only */ | |
299 | #define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */ | |
300 | #define STYP_INFO (0x0200) /* comment section : not allocated not relocated, not loaded */ | |
301 | #define STYP_OVER (0x0400) /* overlay section : relocated not allocated or loaded */ | |
302 | #define STYP_LIB (0x0800) /* for .lib section : same as INFO */ | |
303 | #define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */ | |
304 | #define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions wherever padding is necessary and there is a | |
3e6e09c0 SC |
305 | word of contiguous bytes beginning on a word boundary. */ |
306 | ||
307 | #ifdef TC_A29K | |
308 | /* NOTE: The use of STYP_BSSREG for relocation is not yet defined. */ | |
309 | #define STYP_BSSREG 0x1200 /* Global register area (like STYP_INFO) */ | |
310 | #define STYP_ENVIR 0x2200 /* Environment (like STYP_INFO) */ | |
311 | #define STYP_ABS 0x4000 /* Absolute (allocated, not reloc, loaded) */ | |
312 | #define STYP_LIT 0x8020 /* Literal data (like STYP_TEXT) */ | |
313 | #endif /* TC_A29K */ | |
314 | ||
315 | /********************** LINE NUMBERS **********************/ | |
316 | ||
317 | /* 1 line number entry for every "breakpointable" source line in a section. | |
318 | * Line numbers are grouped on a per function basis; first entry in a function | |
319 | * grouping will have l_lnno = 0 and in place of physical address will be the | |
320 | * symbol table index of the function name. | |
321 | */ | |
355afbcd KR |
322 | struct lineno |
323 | { | |
324 | union | |
325 | { | |
326 | long l_symndx; /* symbol index of function name, iff l_lnno == 0*/ | |
327 | long l_paddr; /* (physical) address of line number */ | |
328 | } | |
329 | l_addr; | |
330 | unsigned short l_lnno; /* line number */ | |
3e6e09c0 | 331 | #ifdef TC_I960 |
355afbcd KR |
332 | /* not used on a29k */ |
333 | char padding[2]; /* force alignment */ | |
3e6e09c0 | 334 | #endif /* TC_I960 */ |
355afbcd | 335 | }; |
3e6e09c0 SC |
336 | |
337 | #define LINENO struct lineno | |
355afbcd | 338 | #define LINESZ sizeof(LINENO) |
3e6e09c0 SC |
339 | |
340 | ||
341 | /********************** SYMBOLS **********************/ | |
342 | ||
343 | #define SYMNMLEN 8 /* # characters in a symbol name */ | |
344 | #define FILNMLEN 14 /* # characters in a file name */ | |
345 | #define DIMNUM 4 /* # array dimensions in auxiliary entry */ | |
346 | ||
355afbcd KR |
347 | struct syment |
348 | { | |
349 | union | |
350 | { | |
351 | char _n_name[SYMNMLEN]; /* old COFF version */ | |
352 | struct | |
353 | { | |
354 | long _n_zeroes; /* new == 0 */ | |
355 | long _n_offset; /* offset into string table */ | |
356 | } | |
357 | _n_n; | |
358 | char *_n_nptr[2]; /* allows for overlaying */ | |
359 | } | |
360 | _n; | |
361 | long n_value; /* value of symbol */ | |
362 | short n_scnum; /* section number */ | |
363 | ||
3e6e09c0 | 364 | #ifdef TC_I960 |
355afbcd | 365 | /* This isn't yet used on the i960. In some formats this |
3e6e09c0 | 366 | is two bytes of padding. In others, it is missing entirely. */ |
355afbcd | 367 | unsigned short n_flags; /* copy of flags from filhdr */ |
3e6e09c0 | 368 | #endif /* TC_I960 */ |
355afbcd | 369 | |
3e6e09c0 | 370 | #ifdef TC_A29K |
355afbcd | 371 | unsigned short n_type; /* type and derived type */ |
3e6e09c0 | 372 | #else /* TC_A29K */ |
355afbcd KR |
373 | /* at least i960 uses long */ |
374 | unsigned long n_type; /* type and derived type */ | |
3e6e09c0 | 375 | #endif /* TC_A29K */ |
355afbcd KR |
376 | |
377 | char n_sclass; /* storage class */ | |
378 | char n_numaux; /* number of aux. entries */ | |
379 | ||
3e6e09c0 | 380 | #ifndef TC_A29K |
355afbcd | 381 | char pad2[2]; /* force alignment */ |
3e6e09c0 | 382 | #endif /* TC_A29K */ |
355afbcd | 383 | }; |
3e6e09c0 SC |
384 | |
385 | #define SYMENT struct syment | |
355afbcd | 386 | #define SYMESZ sizeof(SYMENT) /* This had better also be sizeof(AUXENT) */ |
3e6e09c0 SC |
387 | |
388 | #define n_name _n._n_name | |
389 | #define n_ptr _n._n_nptr[1] | |
390 | #define n_zeroes _n._n_n._n_zeroes | |
391 | #define n_offset _n._n_n._n_offset | |
355afbcd KR |
392 | |
393 | /* | |
3e6e09c0 SC |
394 | * Relocatable symbols have number of the section in which they are defined, |
395 | * or one of the following: | |
396 | */ | |
355afbcd KR |
397 | |
398 | #define N_SCNUM ((short) 1-65535) /* section num where symbol defined */ | |
399 | #define N_UNDEF ((short)0) /* undefined symbol */ | |
400 | #define N_ABS ((short)-1) /* value of symbol is absolute */ | |
401 | #define N_DEBUG ((short)-2) /* debugging symbol -- symbol value is meaningless */ | |
402 | #define N_TV ((short)-3) /* indicates symbol needs preload transfer vector */ | |
403 | #define P_TV ((short)-4) /* indicates symbol needs transfer vector (postload) */ | |
3e6e09c0 SC |
404 | |
405 | /* | |
406 | * Type of a symbol, in low 4 bits of the word | |
407 | */ | |
355afbcd KR |
408 | #define T_NULL 0 /* type not assigned */ |
409 | #define T_VOID 1 /* function argument (only used by compiler) (but now real void). */ | |
410 | #define T_CHAR 2 /* character */ | |
411 | #define T_SHORT 3 /* short integer */ | |
412 | #define T_INT 4 /* integer */ | |
413 | #define T_LONG 5 /* long integer */ | |
414 | #define T_FLOAT 6 /* floating point */ | |
415 | #define T_DOUBLE 7 /* double word */ | |
416 | #define T_STRUCT 8 /* structure */ | |
417 | #define T_UNION 9 /* union */ | |
418 | #define T_ENUM 10 /* enumeration */ | |
419 | #define T_MOE 11 /* member of enumeration */ | |
420 | #define T_UCHAR 12 /* unsigned character */ | |
421 | #define T_USHORT 13 /* unsigned short */ | |
422 | #define T_UINT 14 /* unsigned integer */ | |
423 | #define T_ULONG 15 /* unsigned long */ | |
3e6e09c0 SC |
424 | |
425 | #ifdef TC_I960 | |
426 | #define T_LNGDBL 16 /* long double */ | |
427 | #endif /* TC_I960 */ | |
428 | ||
429 | /* | |
430 | * derived types, in n_type | |
431 | */ | |
432 | #define DT_NON (0) /* no derived type */ | |
433 | #define DT_PTR (1) /* pointer */ | |
434 | #define DT_FCN (2) /* function */ | |
435 | #define DT_ARY (3) /* array */ | |
436 | ||
437 | #ifndef TC_I960 | |
438 | ||
439 | #define N_BTMASK (0x0f) | |
440 | #define N_TMASK (0x30) | |
441 | #define N_BTSHFT (4) | |
442 | #define N_TSHIFT (2) | |
443 | ||
444 | #else /* TC_I960 */ | |
445 | ||
446 | #define N_BTMASK (0x1f) | |
447 | #define N_TMASK (0x60) | |
448 | #define N_BTSHFT (5) | |
449 | #define N_TSHIFT (2) | |
450 | ||
451 | #endif /* TC_I960 */ | |
452 | ||
453 | #define BTYPE(x) ((x) & N_BTMASK) | |
454 | ||
455 | #define ISPTR(x) (((x) & N_TMASK) == (DT_PTR << N_BTSHFT)) | |
456 | #define ISFCN(x) (((x) & N_TMASK) == (DT_FCN << N_BTSHFT)) | |
457 | #define ISARY(x) (((x) & N_TMASK) == (DT_ARY << N_BTSHFT)) | |
458 | ||
459 | #define DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)|((x)&N_BTMASK)) | |
460 | ||
355afbcd KR |
461 | union auxent |
462 | { | |
463 | struct | |
464 | { | |
465 | long x_tagndx; /* str, un, or enum tag indx */ | |
466 | union | |
467 | { | |
468 | struct | |
469 | { | |
470 | unsigned short x_lnno; /* declaration line number */ | |
471 | unsigned short x_size; /* str/union/array size */ | |
472 | } | |
473 | x_lnsz; | |
474 | long x_fsize; /* size of function */ | |
475 | } | |
476 | x_misc; | |
477 | union | |
478 | { | |
479 | struct | |
480 | { /* if ISFCN, tag, or .bb */ | |
481 | long x_lnnoptr; /* ptr to fcn line # */ | |
482 | long x_endndx; /* entry ndx past block end */ | |
483 | } | |
484 | x_fcn; | |
485 | struct | |
486 | { /* if ISARY, up to 4 dimen. */ | |
487 | unsigned short x_dimen[DIMNUM]; | |
488 | } | |
489 | x_ary; | |
490 | } | |
491 | x_fcnary; | |
492 | unsigned short x_tvndx; /* tv index */ | |
493 | } | |
494 | x_sym; | |
495 | ||
496 | /* This was just a struct x_file with x_fname only in a29k. xoxorich. */ | |
497 | union | |
498 | { | |
499 | char x_fname[FILNMLEN]; | |
500 | struct | |
501 | { | |
502 | long x_zeroes; | |
503 | long x_offset; | |
504 | } | |
505 | x_n; | |
506 | } | |
507 | x_file; | |
508 | ||
509 | struct | |
510 | { | |
511 | long x_scnlen; /* section length */ | |
512 | unsigned short x_nreloc;/* # relocation entries */ | |
513 | unsigned short x_nlinno;/* # line numbers */ | |
514 | } | |
515 | x_scn; | |
516 | ||
517 | struct | |
518 | { | |
519 | long x_tvfill; /* tv fill value */ | |
520 | unsigned short x_tvlen; /* length of .tv */ | |
521 | ||
522 | /* This field was typo'd x_tvrna on a29k. xoxorich. */ | |
523 | unsigned short x_tvran[2]; /* tv range */ | |
524 | } | |
525 | x_tv; /* info about .tv section (in auxent of symbol .tv)) */ | |
526 | ||
3e6e09c0 | 527 | #ifdef TC_I960 |
355afbcd | 528 | /****************************************** |
3e6e09c0 SC |
529 | * I960-specific *2nd* aux. entry formats |
530 | ******************************************/ | |
355afbcd KR |
531 | struct |
532 | { | |
533 | /* This is a very old typo that keeps getting propogated. */ | |
3e6e09c0 | 534 | #define x_stdindx x_stindx |
355afbcd KR |
535 | long x_stindx; /* sys. table entry */ |
536 | } | |
537 | x_sc; /* system call entry */ | |
538 | ||
539 | struct | |
540 | { | |
541 | unsigned long x_balntry;/* BAL entry point */ | |
542 | } | |
543 | x_bal; /* BAL-callable function */ | |
544 | ||
545 | struct | |
546 | { | |
547 | unsigned long x_timestamp; /* time stamp */ | |
548 | char x_idstring[20]; /* producer identity string */ | |
549 | } | |
550 | x_ident; /* Producer ident info */ | |
551 | ||
552 | char a[sizeof (struct syment)]; /* force auxent/syment sizes to match */ | |
3e6e09c0 | 553 | #endif /* TC_I960 */ |
355afbcd | 554 | }; |
3e6e09c0 SC |
555 | |
556 | #define AUXENT union auxent | |
355afbcd | 557 | #define AUXESZ sizeof(AUXENT) /* This had better also be sizeof(SYMENT) */ |
3e6e09c0 SC |
558 | |
559 | #if VAX || I960 | |
560 | # define _ETEXT "_etext" | |
561 | #else | |
562 | # define _ETEXT "etext" | |
563 | #endif | |
564 | ||
565 | /********************** RELOCATION DIRECTIVES **********************/ | |
566 | ||
355afbcd KR |
567 | struct reloc |
568 | { | |
569 | long r_vaddr; /* Virtual address of reference */ | |
570 | long r_symndx; /* Index into symbol table */ | |
571 | unsigned short r_type; /* Relocation type */ | |
3e6e09c0 | 572 | #ifdef TC_I960 |
355afbcd KR |
573 | /* not used for a29k */ |
574 | char pad[2]; /* Unused */ | |
3e6e09c0 | 575 | #endif /* TC_I960 */ |
355afbcd | 576 | }; |
3e6e09c0 SC |
577 | |
578 | #define RELOC struct reloc | |
579 | #define RELSZ sizeof(RELOC) | |
580 | ||
355afbcd | 581 | #define R_ABS (0x00) /* reference is absolute */ |
3e6e09c0 | 582 | |
baa018ce KR |
583 | #ifdef TC_I860 |
584 | #define RM_DIR32 (0x06) | |
585 | #define R_IPAIR (0x1c) | |
586 | #define R_N10PAIR (0x1d) | |
587 | #define R_N10HIGH (0x1e) | |
588 | #define R_N10LOW0 (0x1f) | |
589 | #define R_N10LOW1 (0x20) | |
590 | #define R_N10LOW2 (0x21) | |
591 | #define R_N10LOW3 (0x22) | |
592 | #define R_N10LOW4 (0x23) | |
593 | #define R_N10SPLIT0 (0x24) | |
594 | #define R_N10SPLIT1 (0x25) | |
595 | #define R_N10SPLIT2 (0x26) | |
596 | #define R_N10HIGHADJ (0x27) | |
597 | #define R_N10BRADDR (0x28) | |
598 | #endif /* TC_I860 */ | |
599 | ||
3e6e09c0 SC |
600 | #ifdef TC_I960 |
601 | #define R_RELLONG (0x11) /* Direct 32-bit relocation */ | |
602 | #define R_IPRSHORT (0x18) | |
603 | #define R_IPRMED (0x19) /* 24-bit ip-relative relocation */ | |
604 | #define R_IPRLONG (0x1a) | |
605 | #define R_OPTCALL (0x1b) /* 32-bit optimizable call (leafproc/sysproc) */ | |
606 | #define R_OPTCALLX (0x1c) /* 64-bit optimizable call (leafproc/sysproc) */ | |
607 | #define R_GETSEG (0x1d) | |
608 | #define R_GETPA (0x1e) | |
609 | #define R_TAGWORD (0x1f) | |
610 | #endif /* TC_I960 */ | |
611 | ||
612 | #ifdef TC_A29K | |
613 | /* | |
614 | * NOTE: All the "I" forms refer to Am29000 instruction | |
615 | * formats. The linker is expected to know how the numeric | |
616 | * information is split and/or aligned within the | |
617 | * instruction word(s). R_BYTE works for instructions, too. | |
618 | * | |
619 | * If the parameter to a CONSTH instruction is a relocatable | |
620 | * type, two relocation records are written. The first has | |
621 | * an r_type of R_IHIHALF (33 octal) and a normal r_vaddr | |
622 | * and r_symndx. The second relocation record has an r_type | |
623 | * of R_IHCONST (34 octal), a normal r_vaddr (which is | |
624 | * redundant), and an r_symndx containing the 32-bit | |
625 | * constant offset to the relocation instead of the actual | |
626 | * symbol table index. This second record is always | |
627 | * written, even if the constant offset is zero. The | |
628 | * constant fields of the instruction are set to zero. | |
629 | */ | |
630 | ||
355afbcd KR |
631 | #define R_IREL (0x18) /* instruction relative (jmp/call) */ |
632 | #define R_IABS (0x19) /* instruction absolute (jmp/call) */ | |
633 | #define R_ILOHALF (0x1a) /* instruction low half (const) */ | |
634 | #define R_IHIHALF (0x1b) /* instruction high half (consth) part 1 */ | |
635 | #define R_IHCONST (0x1c) /* instruction high half (consth) part 2 | |
3e6e09c0 | 636 | constant offset of R_IHIHALF relocation */ |
355afbcd KR |
637 | #define R_BYTE (0x1d) /* relocatable byte value */ |
638 | #define R_HWORD (0x1e) /* relocatable halfword value */ | |
639 | #define R_WORD (0x1f) /* relocatable word value */ | |
640 | #define R_IGLBLRC (0x20) /* instruction global register RC */ | |
641 | #define R_IGLBLRA (0x21) /* instruction global register RA */ | |
642 | #define R_IGLBLRB (0x22) /* instruction global register RB */ | |
3e6e09c0 SC |
643 | #endif /* TC_A29K */ |
644 | ||
645 | ||
646 | #define DEFAULT_DATA_SECTION_ALIGNMENT 4 | |
647 | #define DEFAULT_BSS_SECTION_ALIGNMENT 4 | |
648 | #define DEFAULT_TEXT_SECTION_ALIGNMENT 16 | |
649 | /* For new sections we haven't heard of before */ | |
650 | #define DEFAULT_SECTION_ALIGNMENT 4 | |
651 | ||
652 | #if defined(TC_I386) | |
653 | /* | |
654 | * X86 generic | |
655 | * 8-bit offset reference in 8-bits | |
355afbcd | 656 | * 8-bit offset reference in 16-bits |
3e6e09c0 SC |
657 | * 12-bit segment reference |
658 | * auxiliary relocation entry | |
659 | */ | |
660 | #define R_OFF8 07 | |
661 | #define R_OFF16 010 | |
662 | #define R_SEG12 011 | |
663 | #define R_AUX 013 | |
664 | ||
665 | /* | |
666 | * B16 and X86 generics | |
667 | * 16-bit direct reference | |
668 | * 16-bit "relative" reference | |
669 | * 16-bit "indirect" (TV) reference | |
670 | */ | |
671 | #define R_DIR16 01 | |
672 | #define R_REL16 02 | |
673 | #define R_IND16 03 | |
674 | ||
675 | /* | |
676 | * 3B generic | |
677 | * 24-bit direct reference | |
678 | * 24-bit "relative" reference | |
679 | * 16-bit optimized "indirect" TV reference | |
680 | * 24-bit "indirect" TV reference | |
681 | * 32-bit "indirect" TV reference | |
682 | */ | |
683 | #define R_DIR24 04 | |
684 | #define R_REL24 05 | |
685 | #define R_OPT16 014 | |
686 | #define R_IND24 015 | |
687 | #define R_IND32 016 | |
688 | ||
355afbcd | 689 | /* |
3e6e09c0 SC |
690 | * XL generics |
691 | * 10-bit direct reference | |
692 | * 10-bit "relative" reference | |
693 | * 32-bit "relative" reference | |
694 | */ | |
695 | #define R_DIR10 025 | |
696 | #define R_REL10 026 | |
697 | #define R_REL32 027 | |
698 | ||
699 | /* | |
700 | * 3B and M32 generics | |
701 | * 32-bit direct reference | |
702 | */ | |
703 | #define R_DIR32 06 | |
704 | ||
705 | /* | |
706 | * M32 generic | |
707 | * 32-bit direct reference with bytes swapped | |
708 | */ | |
709 | #define R_DIR32S 012 | |
355afbcd | 710 | |
3e6e09c0 SC |
711 | #endif /* TC_I386 */ |
712 | ||
713 | #if defined(TE_I386AIX) | |
714 | ||
355afbcd | 715 | #define UINFOSIZ 64 /* size of user info buffer */ |
3e6e09c0 SC |
716 | typedef char uinfo_t[UINFOSIZ]; |
717 | ||
355afbcd KR |
718 | struct env387 |
719 | { | |
720 | unsigned short control; | |
721 | unsigned short r0; | |
722 | unsigned short status; | |
723 | unsigned short r1; | |
724 | unsigned short tag; | |
725 | unsigned short r2; | |
726 | unsigned long eip; | |
727 | unsigned short code_seg; | |
728 | unsigned short opcode; | |
729 | unsigned long operand; | |
730 | unsigned short operand_seg; | |
731 | unsigned short r3; | |
732 | unsigned char regs[8][10]; | |
733 | }; | |
734 | ||
735 | #define CD_NAMELEN 16 /* length of most names in this header */ | |
736 | #define CORHDRSIZ 2048 /* size to which header is padded out */ | |
737 | #define MAX_CORE_SEGS 32 /* maximum segments in a core dump */ | |
738 | #define NUM_FREGS 1 /* # of saved FP regs */ | |
3e6e09c0 SC |
739 | |
740 | /* | |
741 | * These are defined such that 286 and 386 kernels can produce | |
742 | * compatible dumps. | |
743 | */ | |
744 | #define CD_AX 0 | |
745 | #define CD_BX 1 | |
746 | #define CD_CX 2 | |
747 | #define CD_DX 3 | |
748 | #define CD_SI 4 | |
749 | #define CD_DI 5 | |
750 | #define CD_BP 6 | |
751 | #define CD_SP 7 | |
752 | #define CD_FL 8 | |
753 | #define CD_IP 9 | |
754 | #define CD_CS 10 | |
755 | #define CD_DS 11 | |
756 | #define CD_ES 12 | |
757 | #define CD_FS 13 | |
758 | #define CD_GS 14 | |
759 | #define CD_SS 15 | |
760 | #define NUM_REGS 16 | |
761 | ||
762 | #ifndef SPATHLEN | |
355afbcd | 763 | # define SPATHLEN 16 /* sys/param.h */ |
3e6e09c0 SC |
764 | #endif |
765 | #ifndef NSIG | |
355afbcd | 766 | # define NSIG 63 /* sys/signal.h */ |
3e6e09c0 | 767 | # define SIGSETSZ ((NSIG+31)/32) |
355afbcd KR |
768 | typedef struct ksigmask |
769 | { | |
770 | unsigned long sigs[SIGSETSZ]; | |
771 | } | |
772 | ||
773 | ksigmask_t; | |
3e6e09c0 SC |
774 | #endif |
775 | ||
355afbcd KR |
776 | struct corehdr |
777 | { | |
778 | char cd_magic[4]; /* COR_MAGIC = "core" */ | |
779 | ||
780 | /* general information about the dump itself */ | |
781 | struct dumpseg | |
782 | { /* table of contents for dump */ | |
783 | long cs_type; /* seg. type; see below */ | |
784 | long cs_len; /* length (in bytes) of segment */ | |
785 | long cs_offset; /* offset (in dump) of segment */ | |
786 | long cs_address; /* address segment had in mem */ | |
787 | } | |
788 | cd_segs[MAX_CORE_SEGS]; | |
789 | ||
790 | /* general information about the process */ | |
791 | char cd_comm[CD_NAMELEN]; /* command being run */ | |
792 | char cd_mach[CD_NAMELEN]; /* type of machine it ran on */ | |
793 | char cd_site[CD_NAMELEN]; /* name of site it ran on */ | |
794 | long cd_ldtype; /* type of load module running */ | |
795 | char cd_intsize; /* sizeof(int) */ | |
796 | char cd_dptrsize; /* sizeof(char *) */ | |
797 | char cd_tptrsize; /* sizeof(int (*)()) */ | |
798 | char cd_unused; | |
799 | ||
800 | /* user-mode program state */ | |
801 | long cd_regs[NUM_REGS]; /* user-mode general registers */ | |
802 | struct env387 cd_fpregs; /* user-mode floating-point state */ | |
803 | ||
804 | /* kernel-mode program state */ | |
805 | int (*cd_sig[NSIG]) (); /* disposition of signals */ | |
806 | ksigmask_t cd_sigmask; /* signals to be blocked */ | |
807 | ksigmask_t cd_sigpend; /* signals currently pending */ | |
808 | long cd_cursig; /* signal that caused the dump */ | |
809 | ||
810 | long cd_pid; /* process ID of the corpse */ | |
811 | long cd_ppid; /* parent process ID of corpse */ | |
812 | short cd_uid; /* process effective user ID */ | |
813 | short cd_ruid; /* process real user ID */ | |
814 | short cd_gid; /* process effective group ID */ | |
815 | short cd_rgid; /* process real group ID */ | |
816 | ||
817 | uinfo_t cd_uinfo; /* buffer of user information */ | |
818 | char cd_locname[32]; /* name of /local */ | |
819 | char cd_uvers[CD_NAMELEN]; /* user version string */ | |
820 | unsigned short cd_spath[SPATHLEN]; /* sitepath */ | |
821 | }; | |
3e6e09c0 SC |
822 | |
823 | #ifndef NOCHECKS | |
824 | /* this will generate an error if sizeof(struct corehdr) > CORHDRSIZ */ | |
355afbcd KR |
825 | struct |
826 | { | |
827 | char xxcdxx[CORHDRSIZ + 1 - sizeof (struct corehdr)]; | |
828 | }; | |
829 | ||
830 | #endif /* ! NOCHECKS */ | |
3e6e09c0 SC |
831 | |
832 | /* | |
833 | * segment types (in cs_type) | |
834 | * each segment in the address space appears here, whether or not it | |
835 | * is actually dumped. Read/only segments will not actually be dumped. | |
836 | * A segment that is not in the dump will have a cs_offset of zero. | |
837 | */ | |
838 | #define COR_TYPE_CODE 'x' /* process code - NOT IN DUMP */ | |
839 | #define COR_TYPE_DATA 'd' /* process data segment */ | |
840 | #define COR_TYPE_STACK 's' /* process stack segment */ | |
841 | #define COR_TYPE_LIBCODE 'X' /* shared lib code - NOT IN DUMP*/ | |
842 | #define COR_TYPE_LIBDATA 'D' /* shared lib data */ | |
843 | #define COR_TYPE_READ 'r' /* other read/only - NOT IN DUMP*/ | |
844 | #define COR_TYPE_WRITE 'w' /* other writeable */ | |
845 | #define COR_TYPE_MSC '?' /* other, mapped in segment */ | |
846 | ||
847 | #endif /* TE_I386AIX */ | |
848 | ||
849 | /* | |
850 | * Local Variables: | |
851 | * comment-column: 0 | |
852 | * End: | |
853 | */ | |
854 | ||
855 | /* end of coff_gnu.h */ |