Commit | Line | Data |
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76c7e44d | 1 | /* HP PA-RISC SOM object file format: definitions internal to BFD. |
85579659 | 2 | Copyright (C) 1990, 91, 92, 93, 94 Free Software Foundation, Inc. |
76c7e44d SG |
3 | |
4 | Contributed by the Center for Software Science at the | |
5 | University of Utah (pa-gdb-bugs@cs.utah.edu). | |
6 | ||
d9ad93bc | 7 | This file is part of BFD, the Binary File Descriptor library. |
76c7e44d | 8 | |
d9ad93bc KR |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
76c7e44d | 13 | |
d9ad93bc KR |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
76c7e44d | 18 | |
d9ad93bc KR |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
6c7b3090 | 21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
76c7e44d | 22 | |
d9ad93bc KR |
23 | #ifndef _HPPA_H |
24 | #define _HPPA_H | |
d325e28c | 25 | |
d9ad93bc | 26 | #define BYTES_IN_WORD 4 |
85579659 | 27 | #define PA_PAGESIZE 0x1000 |
205d660d | 28 | |
d9ad93bc KR |
29 | #ifndef INLINE |
30 | #ifdef __GNUC__ | |
31 | #define INLINE inline | |
32 | #else | |
33 | #define INLINE | |
34 | #endif /* GNU C? */ | |
35 | #endif /* INLINE */ | |
d325e28c | 36 | |
6c7b3090 JL |
37 | /* The PA instruction set variants. */ |
38 | enum pa_arch {pa10 = 10, pa11 = 11, pa20 = 20}; | |
39 | ||
d9ad93bc | 40 | /* HP PA-RISC relocation types */ |
d325e28c | 41 | |
d9ad93bc KR |
42 | enum hppa_reloc_field_selector_type |
43 | { | |
44 | R_HPPA_FSEL = 0x0, | |
45 | R_HPPA_LSSEL = 0x1, | |
46 | R_HPPA_RSSEL = 0x2, | |
47 | R_HPPA_LSEL = 0x3, | |
48 | R_HPPA_RSEL = 0x4, | |
49 | R_HPPA_LDSEL = 0x5, | |
50 | R_HPPA_RDSEL = 0x6, | |
51 | R_HPPA_LRSEL = 0x7, | |
52 | R_HPPA_RRSEL = 0x8, | |
6c7b3090 JL |
53 | R_HPPA_NSEL = 0x9, |
54 | R_HPPA_PSEL = 0xa, | |
55 | R_HPPA_LPSEL = 0xb, | |
56 | R_HPPA_RPSEL = 0xc, | |
57 | R_HPPA_TSEL = 0xd, | |
58 | R_HPPA_LTSEL = 0xe, | |
59 | R_HPPA_RTSEL = 0xf | |
d9ad93bc | 60 | }; |
89c789f6 | 61 | |
aef3ae9a JK |
62 | /* /usr/include/reloc.h defines these to constants. We want to use |
63 | them in enums, so #undef them before we start using them. We might | |
64 | be able to fix this another way by simply managing not to include | |
65 | /usr/include/reloc.h, but currently GDB picks up these defines | |
66 | somewhere. */ | |
67 | #undef e_fsel | |
68 | #undef e_lssel | |
69 | #undef e_rssel | |
70 | #undef e_lsel | |
71 | #undef e_rsel | |
72 | #undef e_ldsel | |
73 | #undef e_rdsel | |
74 | #undef e_lrsel | |
75 | #undef e_rrsel | |
6c7b3090 | 76 | #undef e_nsel |
aef3ae9a JK |
77 | #undef e_psel |
78 | #undef e_lpsel | |
79 | #undef e_rpsel | |
80 | #undef e_tsel | |
81 | #undef e_ltsel | |
82 | #undef e_rtsel | |
83 | #undef e_one | |
84 | #undef e_two | |
85 | #undef e_pcrel | |
86 | #undef e_con | |
87 | #undef e_plabel | |
88 | #undef e_abs | |
89 | ||
d9ad93bc KR |
90 | /* for compatibility */ |
91 | enum hppa_reloc_field_selector_type_alt | |
92 | { | |
93 | e_fsel = R_HPPA_FSEL, | |
94 | e_lssel = R_HPPA_LSSEL, | |
95 | e_rssel = R_HPPA_RSSEL, | |
96 | e_lsel = R_HPPA_LSEL, | |
97 | e_rsel = R_HPPA_RSEL, | |
98 | e_ldsel = R_HPPA_LDSEL, | |
99 | e_rdsel = R_HPPA_RDSEL, | |
100 | e_lrsel = R_HPPA_LRSEL, | |
101 | e_rrsel = R_HPPA_RRSEL, | |
6c7b3090 | 102 | e_nsel = R_HPPA_NSEL, |
d9ad93bc KR |
103 | e_psel = R_HPPA_PSEL, |
104 | e_lpsel = R_HPPA_LPSEL, | |
105 | e_rpsel = R_HPPA_RPSEL, | |
106 | e_tsel = R_HPPA_TSEL, | |
107 | e_ltsel = R_HPPA_LTSEL, | |
108 | e_rtsel = R_HPPA_RTSEL | |
109 | }; | |
89c789f6 | 110 | |
d9ad93bc KR |
111 | enum hppa_reloc_expr_type |
112 | { | |
113 | R_HPPA_E_ONE = 0, | |
114 | R_HPPA_E_TWO = 1, | |
115 | R_HPPA_E_PCREL = 2, | |
116 | R_HPPA_E_CON = 3, | |
117 | R_HPPA_E_PLABEL = 7, | |
118 | R_HPPA_E_ABS = 18 | |
119 | }; | |
d325e28c | 120 | |
d9ad93bc KR |
121 | /* for compatibility */ |
122 | enum hppa_reloc_expr_type_alt | |
123 | { | |
124 | e_one = R_HPPA_E_ONE, | |
125 | e_two = R_HPPA_E_TWO, | |
126 | e_pcrel = R_HPPA_E_PCREL, | |
127 | e_con = R_HPPA_E_CON, | |
128 | e_plabel = R_HPPA_E_PLABEL, | |
129 | e_abs = R_HPPA_E_ABS | |
130 | }; | |
131 | ||
132 | ||
f6061456 JL |
133 | /* Relocations for function calls must be accompanied by parameter |
134 | relocation bits. These bits describe exactly where the caller has | |
135 | placed the function's arguments and where it expects to find a return | |
136 | value. | |
137 | ||
138 | Both ELF and SOM encode this information within the addend field | |
139 | of the call relocation. (Note this could break very badly if one | |
140 | was to make a call like bl foo + 0x12345678). | |
141 | ||
142 | The high order 10 bits contain parameter relocation information, | |
143 | the low order 22 bits contain the constant offset. */ | |
144 | ||
145 | #define HPPA_R_ARG_RELOC(a) (((a) >> 22) & 0x3FF) | |
146 | #define HPPA_R_CONSTANT(a) ((((int)(a)) << 10) >> 10) | |
147 | #define HPPA_R_ADDEND(r,c) (((r) << 22) + ((c) & 0x3FFFFF)) | |
148 | ||
d9ad93bc KR |
149 | /* Some functions to manipulate PA instructions. */ |
150 | static INLINE unsigned int | |
151 | assemble_3 (x) | |
152 | unsigned int x; | |
153 | { | |
154 | return (((x & 1) << 2) | ((x & 6) >> 1)) & 7; | |
155 | } | |
d325e28c | 156 | |
d9ad93bc KR |
157 | static INLINE void |
158 | dis_assemble_3 (x, r) | |
159 | unsigned int x; | |
160 | unsigned int *r; | |
161 | { | |
162 | *r = (((x & 4) >> 2) | ((x & 3) << 1)) & 7; | |
163 | } | |
89c789f6 | 164 | |
d9ad93bc KR |
165 | static INLINE unsigned int |
166 | assemble_12 (x, y) | |
167 | unsigned int x, y; | |
168 | { | |
169 | return (((y & 1) << 11) | ((x & 1) << 10) | ((x & 0x7fe) >> 1)) & 0xfff; | |
170 | } | |
89c789f6 | 171 | |
d9ad93bc KR |
172 | static INLINE void |
173 | dis_assemble_12 (as12, x, y) | |
174 | unsigned int as12; | |
175 | unsigned int *x, *y; | |
176 | { | |
177 | *y = (as12 & 0x800) >> 11; | |
178 | *x = ((as12 & 0x3ff) << 1) | ((as12 & 0x400) >> 10); | |
179 | } | |
76c7e44d | 180 | |
d9ad93bc KR |
181 | static INLINE unsigned long |
182 | assemble_17 (x, y, z) | |
183 | unsigned int x, y, z; | |
184 | { | |
185 | unsigned long temp; | |
186 | ||
187 | temp = ((z & 1) << 16) | | |
188 | ((x & 0x1f) << 11) | | |
189 | ((y & 1) << 10) | | |
190 | ((y & 0x7fe) >> 1); | |
191 | return temp & 0x1ffff; | |
192 | } | |
193 | ||
194 | static INLINE void | |
195 | dis_assemble_17 (as17, x, y, z) | |
196 | unsigned int as17; | |
197 | unsigned int *x, *y, *z; | |
198 | { | |
76c7e44d | 199 | |
d9ad93bc KR |
200 | *z = (as17 & 0x10000) >> 16; |
201 | *x = (as17 & 0x0f800) >> 11; | |
202 | *y = (((as17 & 0x00400) >> 10) | ((as17 & 0x3ff) << 1)) & 0x7ff; | |
203 | } | |
76c7e44d | 204 | |
d9ad93bc KR |
205 | static INLINE unsigned long |
206 | assemble_21 (x) | |
207 | unsigned int x; | |
76c7e44d | 208 | { |
d9ad93bc KR |
209 | unsigned long temp; |
210 | ||
211 | temp = ((x & 1) << 20) | | |
212 | ((x & 0xffe) << 8) | | |
213 | ((x & 0xc000) >> 7) | | |
214 | ((x & 0x1f0000) >> 14) | | |
215 | ((x & 0x003000) >> 12); | |
216 | return temp & 0x1fffff; | |
217 | } | |
218 | ||
219 | static INLINE void | |
220 | dis_assemble_21 (as21, x) | |
221 | unsigned int as21, *x; | |
76c7e44d | 222 | { |
d9ad93bc | 223 | unsigned long temp; |
76c7e44d | 224 | |
76c7e44d | 225 | |
d9ad93bc KR |
226 | temp = (as21 & 0x100000) >> 20; |
227 | temp |= (as21 & 0x0ffe00) >> 8; | |
228 | temp |= (as21 & 0x000180) << 7; | |
229 | temp |= (as21 & 0x00007c) << 14; | |
230 | temp |= (as21 & 0x000003) << 12; | |
231 | *x = temp; | |
232 | } | |
76c7e44d | 233 | |
d9ad93bc | 234 | static INLINE unsigned long |
6c7b3090 | 235 | sign_extend (x, len) |
d9ad93bc KR |
236 | unsigned int x, len; |
237 | { | |
6c7b3090 | 238 | return (int)(x >> (len - 1) ? (-1 << len) | x : x); |
d9ad93bc | 239 | } |
76c7e44d | 240 | |
d9ad93bc KR |
241 | static INLINE unsigned int |
242 | ones (n) | |
243 | int n; | |
244 | { | |
245 | unsigned int len_ones; | |
246 | int i; | |
247 | ||
248 | i = 0; | |
249 | len_ones = 0; | |
250 | while (i < n) | |
251 | { | |
252 | len_ones = (len_ones << 1) | 1; | |
253 | i++; | |
254 | } | |
255 | ||
256 | return len_ones; | |
257 | } | |
258 | ||
259 | static INLINE void | |
260 | sign_unext (x, len, result) | |
261 | unsigned int x, len; | |
262 | unsigned int *result; | |
263 | { | |
264 | unsigned int len_ones; | |
76c7e44d | 265 | |
d9ad93bc | 266 | len_ones = ones (len); |
76c7e44d | 267 | |
d9ad93bc KR |
268 | *result = x & len_ones; |
269 | } | |
76c7e44d | 270 | |
d9ad93bc | 271 | static INLINE unsigned long |
6c7b3090 | 272 | low_sign_extend (x, len) |
d9ad93bc KR |
273 | unsigned int x, len; |
274 | { | |
6c7b3090 | 275 | return (int)((x & 0x1 ? (-1 << (len - 1)) : 0) | x >> 1); |
d9ad93bc | 276 | } |
205d660d | 277 | |
d9ad93bc KR |
278 | static INLINE void |
279 | low_sign_unext (x, len, result) | |
280 | unsigned int x, len; | |
281 | unsigned int *result; | |
76c7e44d | 282 | { |
d9ad93bc KR |
283 | unsigned int temp; |
284 | unsigned int sign; | |
285 | unsigned int rest; | |
286 | unsigned int one_bit_at_len; | |
287 | unsigned int len_ones; | |
8568acaa | 288 | |
d9ad93bc KR |
289 | len_ones = ones (len); |
290 | one_bit_at_len = 1 << (len - 1); | |
8568acaa | 291 | |
d9ad93bc KR |
292 | sign_unext (x, len, &temp); |
293 | sign = temp & one_bit_at_len; | |
294 | sign >>= (len - 1); | |
b2057735 | 295 | |
d9ad93bc KR |
296 | rest = temp & (len_ones ^ one_bit_at_len); |
297 | rest <<= 1; | |
8568acaa | 298 | |
d9ad93bc KR |
299 | *result = rest | sign; |
300 | } | |
8568acaa | 301 | |
d9ad93bc KR |
302 | /* Handle field selectors for PA instructions. */ |
303 | ||
304 | static INLINE unsigned long | |
305 | hppa_field_adjust (value, constant_value, r_field) | |
306 | unsigned long value; | |
307 | unsigned long constant_value; | |
308 | unsigned short r_field; | |
8568acaa | 309 | { |
d9ad93bc KR |
310 | switch (r_field) |
311 | { | |
312 | case e_fsel: /* F : no change */ | |
6c7b3090 | 313 | value += constant_value; |
d9ad93bc KR |
314 | break; |
315 | ||
316 | case e_lssel: /* LS : if (bit 21) then add 0x800 | |
317 | arithmetic shift right 11 bits */ | |
6c7b3090 | 318 | value += constant_value; |
d9ad93bc KR |
319 | if (value & 0x00000400) |
320 | value += 0x800; | |
321 | value = (value & 0xfffff800) >> 11; | |
322 | break; | |
323 | ||
324 | case e_rssel: /* RS : Sign extend from bit 21 */ | |
6c7b3090 | 325 | value += constant_value; |
d9ad93bc KR |
326 | if (value & 0x00000400) |
327 | value |= 0xfffff800; | |
328 | else | |
329 | value &= 0x7ff; | |
330 | break; | |
331 | ||
332 | case e_lsel: /* L : Arithmetic shift right 11 bits */ | |
6c7b3090 | 333 | value += constant_value; |
d9ad93bc KR |
334 | value = (value & 0xfffff800) >> 11; |
335 | break; | |
336 | ||
337 | case e_rsel: /* R : Set bits 0-20 to zero */ | |
6c7b3090 | 338 | value += constant_value; |
d9ad93bc KR |
339 | value = value & 0x7ff; |
340 | break; | |
341 | ||
342 | case e_ldsel: /* LD : Add 0x800, arithmetic shift | |
343 | right 11 bits */ | |
6c7b3090 | 344 | value += constant_value; |
d9ad93bc KR |
345 | value += 0x800; |
346 | value = (value & 0xfffff800) >> 11; | |
347 | break; | |
348 | ||
349 | case e_rdsel: /* RD : Set bits 0-20 to one */ | |
6c7b3090 | 350 | value += constant_value; |
d9ad93bc KR |
351 | value |= 0xfffff800; |
352 | break; | |
353 | ||
6c7b3090 | 354 | case e_nsel: /* Just a guess at the moment. */ |
d9ad93bc KR |
355 | case e_lrsel: /* LR : L with "rounded" constant */ |
356 | value = value + ((constant_value + 0x1000) & 0xffffe000); | |
357 | value = (value & 0xfffff800) >> 11; | |
358 | break; | |
359 | ||
360 | case e_rrsel: /* RR : R with "rounded" constant */ | |
361 | value = value + ((constant_value + 0x1000) & 0xffffe000); | |
362 | value = (value & 0x7ff) + constant_value - ((constant_value + 0x1000) & 0xffffe000); | |
363 | break; | |
364 | ||
365 | default: | |
366 | abort (); | |
367 | } | |
368 | return value; | |
369 | ||
370 | } | |
f6061456 JL |
371 | |
372 | /* PA-RISC OPCODES */ | |
373 | #define get_opcode(insn) ((insn) & 0xfc000000) >> 26 | |
374 | ||
375 | /* FIXME: this list is incomplete. It should also be an enumerated | |
376 | type rather than #defines. */ | |
377 | ||
378 | #define LDO 0x0d | |
379 | #define LDB 0x10 | |
380 | #define LDH 0x11 | |
381 | #define LDW 0x12 | |
382 | #define LDWM 0x13 | |
383 | #define STB 0x18 | |
384 | #define STH 0x19 | |
385 | #define STW 0x1a | |
386 | #define STWM 0x1b | |
387 | #define COMICLR 0x24 | |
388 | #define SUBI 0x25 | |
389 | #define SUBIO 0x25 | |
390 | #define ADDIT 0x2c | |
391 | #define ADDITO 0x2c | |
392 | #define ADDI 0x2d | |
393 | #define ADDIO 0x2d | |
394 | #define LDIL 0x08 | |
395 | #define ADDIL 0x0a | |
396 | ||
397 | #define MOVB 0x32 | |
398 | #define MOVIB 0x33 | |
399 | #define COMBT 0x20 | |
400 | #define COMBF 0x22 | |
401 | #define COMIBT 0x21 | |
402 | #define COMIBF 0x23 | |
403 | #define ADDBT 0x28 | |
404 | #define ADDBF 0x2a | |
405 | #define ADDIBT 0x29 | |
406 | #define ADDIBF 0x2b | |
407 | #define BVB 0x30 | |
408 | #define BB 0x31 | |
409 | ||
410 | #define BL 0x3a | |
411 | #define BLE 0x39 | |
412 | #define BE 0x38 | |
413 | ||
414 | ||
415 | /* Given a machine instruction, return its format. | |
416 | ||
417 | FIXME: opcodes which do not map to a known format | |
418 | should return an error of some sort. */ | |
419 | ||
6c7b3090 | 420 | static INLINE char |
f6061456 JL |
421 | bfd_hppa_insn2fmt (insn) |
422 | unsigned long insn; | |
423 | { | |
424 | char fmt = -1; | |
425 | unsigned char op = get_opcode (insn); | |
426 | ||
427 | switch (op) | |
428 | { | |
429 | case ADDI: | |
430 | case ADDIT: | |
431 | case SUBI: | |
432 | fmt = 11; | |
433 | break; | |
434 | case MOVB: | |
435 | case MOVIB: | |
436 | case COMBT: | |
437 | case COMBF: | |
438 | case COMIBT: | |
439 | case COMIBF: | |
440 | case ADDBT: | |
441 | case ADDBF: | |
442 | case ADDIBT: | |
443 | case ADDIBF: | |
444 | case BVB: | |
445 | case BB: | |
446 | fmt = 12; | |
447 | break; | |
448 | case LDO: | |
449 | case LDB: | |
450 | case LDH: | |
451 | case LDW: | |
452 | case LDWM: | |
453 | case STB: | |
454 | case STH: | |
455 | case STW: | |
456 | case STWM: | |
457 | fmt = 14; | |
458 | break; | |
459 | case BL: | |
460 | case BE: | |
461 | case BLE: | |
462 | fmt = 17; | |
463 | break; | |
464 | case LDIL: | |
465 | case ADDIL: | |
466 | fmt = 21; | |
467 | break; | |
468 | default: | |
469 | fmt = 32; | |
470 | break; | |
471 | } | |
472 | return fmt; | |
473 | } | |
474 | ||
475 | ||
476 | /* Insert VALUE into INSN using R_FORMAT to determine exactly what | |
477 | bits to change. */ | |
478 | ||
6c7b3090 | 479 | static INLINE unsigned long |
f6061456 JL |
480 | hppa_rebuild_insn (abfd, insn, value, r_format) |
481 | bfd *abfd; | |
482 | unsigned long insn; | |
483 | unsigned long value; | |
484 | unsigned long r_format; | |
485 | { | |
486 | unsigned long const_part; | |
487 | unsigned long rebuilt_part; | |
488 | ||
489 | switch (r_format) | |
490 | { | |
491 | case 11: | |
492 | { | |
493 | unsigned w1, w; | |
494 | ||
495 | const_part = insn & 0xffffe002; | |
496 | dis_assemble_12 (value, &w1, &w); | |
497 | rebuilt_part = (w1 << 2) | w; | |
498 | return const_part | rebuilt_part; | |
499 | } | |
500 | ||
501 | case 12: | |
502 | { | |
503 | unsigned w1, w; | |
504 | ||
505 | const_part = insn & 0xffffe002; | |
506 | dis_assemble_12 (value, &w1, &w); | |
507 | rebuilt_part = (w1 << 2) | w; | |
508 | return const_part | rebuilt_part; | |
509 | } | |
510 | ||
511 | case 14: | |
512 | const_part = insn & 0xffffc000; | |
513 | low_sign_unext (value, 14, &rebuilt_part); | |
514 | return const_part | rebuilt_part; | |
515 | ||
516 | case 17: | |
517 | { | |
518 | unsigned w1, w2, w; | |
519 | ||
520 | const_part = insn & 0xffe0e002; | |
521 | dis_assemble_17 (value, &w1, &w2, &w); | |
522 | rebuilt_part = (w2 << 2) | (w1 << 16) | w; | |
523 | return const_part | rebuilt_part; | |
524 | } | |
525 | ||
526 | case 21: | |
527 | const_part = insn & 0xffe00000; | |
528 | dis_assemble_21 (value, &rebuilt_part); | |
529 | return const_part | rebuilt_part; | |
530 | ||
531 | case 32: | |
532 | const_part = 0; | |
533 | return value; | |
534 | ||
535 | default: | |
536 | abort (); | |
537 | } | |
538 | return insn; | |
539 | } | |
540 | ||
d9ad93bc | 541 | #endif /* _HPPA_H */ |