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 | |
1680791e | 29 | #ifndef HINLINE |
d9ad93bc | 30 | #ifdef __GNUC__ |
1680791e | 31 | #define HINLINE extern inline |
d9ad93bc | 32 | #else |
1680791e ILT |
33 | /* INLINE is defined in bfd.h. */ |
34 | #define HINLINE static INLINE | |
d9ad93bc | 35 | #endif /* GNU C? */ |
1680791e | 36 | #endif /* HINLINE */ |
d325e28c | 37 | |
6c7b3090 JL |
38 | /* The PA instruction set variants. */ |
39 | enum pa_arch {pa10 = 10, pa11 = 11, pa20 = 20}; | |
40 | ||
d9ad93bc | 41 | /* HP PA-RISC relocation types */ |
d325e28c | 42 | |
d9ad93bc KR |
43 | enum hppa_reloc_field_selector_type |
44 | { | |
45 | R_HPPA_FSEL = 0x0, | |
46 | R_HPPA_LSSEL = 0x1, | |
47 | R_HPPA_RSSEL = 0x2, | |
48 | R_HPPA_LSEL = 0x3, | |
49 | R_HPPA_RSEL = 0x4, | |
50 | R_HPPA_LDSEL = 0x5, | |
51 | R_HPPA_RDSEL = 0x6, | |
52 | R_HPPA_LRSEL = 0x7, | |
53 | R_HPPA_RRSEL = 0x8, | |
6c7b3090 | 54 | R_HPPA_NSEL = 0x9, |
1680791e ILT |
55 | R_HPPA_NLSEL = 0xa, |
56 | R_HPPA_NLRSEL = 0xb, | |
57 | R_HPPA_PSEL = 0xc, | |
58 | R_HPPA_LPSEL = 0xd, | |
59 | R_HPPA_RPSEL = 0xe, | |
60 | R_HPPA_TSEL = 0xf, | |
61 | R_HPPA_LTSEL = 0x10, | |
62 | R_HPPA_RTSEL = 0x11 | |
d9ad93bc | 63 | }; |
89c789f6 | 64 | |
aef3ae9a JK |
65 | /* /usr/include/reloc.h defines these to constants. We want to use |
66 | them in enums, so #undef them before we start using them. We might | |
67 | be able to fix this another way by simply managing not to include | |
68 | /usr/include/reloc.h, but currently GDB picks up these defines | |
69 | somewhere. */ | |
70 | #undef e_fsel | |
71 | #undef e_lssel | |
72 | #undef e_rssel | |
73 | #undef e_lsel | |
74 | #undef e_rsel | |
75 | #undef e_ldsel | |
76 | #undef e_rdsel | |
77 | #undef e_lrsel | |
78 | #undef e_rrsel | |
6c7b3090 | 79 | #undef e_nsel |
1680791e ILT |
80 | #undef e_nlsel |
81 | #undef e_nlrsel | |
aef3ae9a JK |
82 | #undef e_psel |
83 | #undef e_lpsel | |
84 | #undef e_rpsel | |
85 | #undef e_tsel | |
86 | #undef e_ltsel | |
87 | #undef e_rtsel | |
88 | #undef e_one | |
89 | #undef e_two | |
90 | #undef e_pcrel | |
91 | #undef e_con | |
92 | #undef e_plabel | |
93 | #undef e_abs | |
94 | ||
d9ad93bc KR |
95 | /* for compatibility */ |
96 | enum hppa_reloc_field_selector_type_alt | |
97 | { | |
98 | e_fsel = R_HPPA_FSEL, | |
99 | e_lssel = R_HPPA_LSSEL, | |
100 | e_rssel = R_HPPA_RSSEL, | |
101 | e_lsel = R_HPPA_LSEL, | |
102 | e_rsel = R_HPPA_RSEL, | |
103 | e_ldsel = R_HPPA_LDSEL, | |
104 | e_rdsel = R_HPPA_RDSEL, | |
105 | e_lrsel = R_HPPA_LRSEL, | |
106 | e_rrsel = R_HPPA_RRSEL, | |
6c7b3090 | 107 | e_nsel = R_HPPA_NSEL, |
1680791e ILT |
108 | e_nlsel = R_HPPA_NLSEL, |
109 | e_nlrsel = R_HPPA_NLRSEL, | |
d9ad93bc KR |
110 | e_psel = R_HPPA_PSEL, |
111 | e_lpsel = R_HPPA_LPSEL, | |
112 | e_rpsel = R_HPPA_RPSEL, | |
113 | e_tsel = R_HPPA_TSEL, | |
114 | e_ltsel = R_HPPA_LTSEL, | |
115 | e_rtsel = R_HPPA_RTSEL | |
116 | }; | |
89c789f6 | 117 | |
d9ad93bc KR |
118 | enum hppa_reloc_expr_type |
119 | { | |
120 | R_HPPA_E_ONE = 0, | |
121 | R_HPPA_E_TWO = 1, | |
122 | R_HPPA_E_PCREL = 2, | |
123 | R_HPPA_E_CON = 3, | |
124 | R_HPPA_E_PLABEL = 7, | |
125 | R_HPPA_E_ABS = 18 | |
126 | }; | |
d325e28c | 127 | |
d9ad93bc KR |
128 | /* for compatibility */ |
129 | enum hppa_reloc_expr_type_alt | |
130 | { | |
131 | e_one = R_HPPA_E_ONE, | |
132 | e_two = R_HPPA_E_TWO, | |
133 | e_pcrel = R_HPPA_E_PCREL, | |
134 | e_con = R_HPPA_E_CON, | |
135 | e_plabel = R_HPPA_E_PLABEL, | |
136 | e_abs = R_HPPA_E_ABS | |
137 | }; | |
138 | ||
139 | ||
f6061456 JL |
140 | /* Relocations for function calls must be accompanied by parameter |
141 | relocation bits. These bits describe exactly where the caller has | |
142 | placed the function's arguments and where it expects to find a return | |
143 | value. | |
144 | ||
145 | Both ELF and SOM encode this information within the addend field | |
146 | of the call relocation. (Note this could break very badly if one | |
147 | was to make a call like bl foo + 0x12345678). | |
148 | ||
149 | The high order 10 bits contain parameter relocation information, | |
150 | the low order 22 bits contain the constant offset. */ | |
151 | ||
152 | #define HPPA_R_ARG_RELOC(a) (((a) >> 22) & 0x3FF) | |
153 | #define HPPA_R_CONSTANT(a) ((((int)(a)) << 10) >> 10) | |
154 | #define HPPA_R_ADDEND(r,c) (((r) << 22) + ((c) & 0x3FFFFF)) | |
155 | ||
d9ad93bc | 156 | /* Some functions to manipulate PA instructions. */ |
1680791e | 157 | HINLINE unsigned int |
d9ad93bc KR |
158 | assemble_3 (x) |
159 | unsigned int x; | |
160 | { | |
161 | return (((x & 1) << 2) | ((x & 6) >> 1)) & 7; | |
162 | } | |
d325e28c | 163 | |
1680791e | 164 | HINLINE void |
d9ad93bc KR |
165 | dis_assemble_3 (x, r) |
166 | unsigned int x; | |
167 | unsigned int *r; | |
168 | { | |
169 | *r = (((x & 4) >> 2) | ((x & 3) << 1)) & 7; | |
170 | } | |
89c789f6 | 171 | |
1680791e | 172 | HINLINE unsigned int |
d9ad93bc KR |
173 | assemble_12 (x, y) |
174 | unsigned int x, y; | |
175 | { | |
176 | return (((y & 1) << 11) | ((x & 1) << 10) | ((x & 0x7fe) >> 1)) & 0xfff; | |
177 | } | |
89c789f6 | 178 | |
1680791e | 179 | HINLINE void |
d9ad93bc KR |
180 | dis_assemble_12 (as12, x, y) |
181 | unsigned int as12; | |
182 | unsigned int *x, *y; | |
183 | { | |
184 | *y = (as12 & 0x800) >> 11; | |
185 | *x = ((as12 & 0x3ff) << 1) | ((as12 & 0x400) >> 10); | |
186 | } | |
76c7e44d | 187 | |
1680791e | 188 | HINLINE unsigned long |
d9ad93bc KR |
189 | assemble_17 (x, y, z) |
190 | unsigned int x, y, z; | |
191 | { | |
192 | unsigned long temp; | |
193 | ||
194 | temp = ((z & 1) << 16) | | |
195 | ((x & 0x1f) << 11) | | |
196 | ((y & 1) << 10) | | |
197 | ((y & 0x7fe) >> 1); | |
198 | return temp & 0x1ffff; | |
199 | } | |
200 | ||
1680791e | 201 | HINLINE void |
d9ad93bc KR |
202 | dis_assemble_17 (as17, x, y, z) |
203 | unsigned int as17; | |
204 | unsigned int *x, *y, *z; | |
205 | { | |
76c7e44d | 206 | |
d9ad93bc KR |
207 | *z = (as17 & 0x10000) >> 16; |
208 | *x = (as17 & 0x0f800) >> 11; | |
209 | *y = (((as17 & 0x00400) >> 10) | ((as17 & 0x3ff) << 1)) & 0x7ff; | |
210 | } | |
76c7e44d | 211 | |
1680791e | 212 | HINLINE unsigned long |
d9ad93bc KR |
213 | assemble_21 (x) |
214 | unsigned int x; | |
76c7e44d | 215 | { |
d9ad93bc KR |
216 | unsigned long temp; |
217 | ||
218 | temp = ((x & 1) << 20) | | |
219 | ((x & 0xffe) << 8) | | |
220 | ((x & 0xc000) >> 7) | | |
221 | ((x & 0x1f0000) >> 14) | | |
222 | ((x & 0x003000) >> 12); | |
223 | return temp & 0x1fffff; | |
224 | } | |
225 | ||
1680791e | 226 | HINLINE void |
d9ad93bc KR |
227 | dis_assemble_21 (as21, x) |
228 | unsigned int as21, *x; | |
76c7e44d | 229 | { |
d9ad93bc | 230 | unsigned long temp; |
76c7e44d | 231 | |
76c7e44d | 232 | |
d9ad93bc KR |
233 | temp = (as21 & 0x100000) >> 20; |
234 | temp |= (as21 & 0x0ffe00) >> 8; | |
235 | temp |= (as21 & 0x000180) << 7; | |
236 | temp |= (as21 & 0x00007c) << 14; | |
237 | temp |= (as21 & 0x000003) << 12; | |
238 | *x = temp; | |
239 | } | |
76c7e44d | 240 | |
1680791e | 241 | HINLINE unsigned long |
6c7b3090 | 242 | sign_extend (x, len) |
d9ad93bc KR |
243 | unsigned int x, len; |
244 | { | |
6c7b3090 | 245 | return (int)(x >> (len - 1) ? (-1 << len) | x : x); |
d9ad93bc | 246 | } |
76c7e44d | 247 | |
1680791e | 248 | HINLINE unsigned int |
d9ad93bc KR |
249 | ones (n) |
250 | int n; | |
251 | { | |
252 | unsigned int len_ones; | |
253 | int i; | |
254 | ||
255 | i = 0; | |
256 | len_ones = 0; | |
257 | while (i < n) | |
258 | { | |
259 | len_ones = (len_ones << 1) | 1; | |
260 | i++; | |
261 | } | |
262 | ||
263 | return len_ones; | |
264 | } | |
265 | ||
1680791e | 266 | HINLINE void |
d9ad93bc KR |
267 | sign_unext (x, len, result) |
268 | unsigned int x, len; | |
269 | unsigned int *result; | |
270 | { | |
271 | unsigned int len_ones; | |
76c7e44d | 272 | |
d9ad93bc | 273 | len_ones = ones (len); |
76c7e44d | 274 | |
d9ad93bc KR |
275 | *result = x & len_ones; |
276 | } | |
76c7e44d | 277 | |
1680791e | 278 | HINLINE unsigned long |
6c7b3090 | 279 | low_sign_extend (x, len) |
d9ad93bc KR |
280 | unsigned int x, len; |
281 | { | |
6c7b3090 | 282 | return (int)((x & 0x1 ? (-1 << (len - 1)) : 0) | x >> 1); |
d9ad93bc | 283 | } |
205d660d | 284 | |
1680791e | 285 | HINLINE void |
d9ad93bc KR |
286 | low_sign_unext (x, len, result) |
287 | unsigned int x, len; | |
288 | unsigned int *result; | |
76c7e44d | 289 | { |
d9ad93bc KR |
290 | unsigned int temp; |
291 | unsigned int sign; | |
292 | unsigned int rest; | |
293 | unsigned int one_bit_at_len; | |
294 | unsigned int len_ones; | |
8568acaa | 295 | |
d9ad93bc KR |
296 | len_ones = ones (len); |
297 | one_bit_at_len = 1 << (len - 1); | |
8568acaa | 298 | |
d9ad93bc KR |
299 | sign_unext (x, len, &temp); |
300 | sign = temp & one_bit_at_len; | |
301 | sign >>= (len - 1); | |
b2057735 | 302 | |
d9ad93bc KR |
303 | rest = temp & (len_ones ^ one_bit_at_len); |
304 | rest <<= 1; | |
8568acaa | 305 | |
d9ad93bc KR |
306 | *result = rest | sign; |
307 | } | |
8568acaa | 308 | |
d9ad93bc KR |
309 | /* Handle field selectors for PA instructions. */ |
310 | ||
1680791e | 311 | HINLINE unsigned long |
d9ad93bc KR |
312 | hppa_field_adjust (value, constant_value, r_field) |
313 | unsigned long value; | |
314 | unsigned long constant_value; | |
315 | unsigned short r_field; | |
8568acaa | 316 | { |
d9ad93bc KR |
317 | switch (r_field) |
318 | { | |
319 | case e_fsel: /* F : no change */ | |
1680791e | 320 | case e_nsel: /* N : no change */ |
6c7b3090 | 321 | value += constant_value; |
d9ad93bc KR |
322 | break; |
323 | ||
324 | case e_lssel: /* LS : if (bit 21) then add 0x800 | |
325 | arithmetic shift right 11 bits */ | |
6c7b3090 | 326 | value += constant_value; |
d9ad93bc KR |
327 | if (value & 0x00000400) |
328 | value += 0x800; | |
329 | value = (value & 0xfffff800) >> 11; | |
330 | break; | |
331 | ||
332 | case e_rssel: /* RS : Sign extend from bit 21 */ | |
6c7b3090 | 333 | value += constant_value; |
d9ad93bc KR |
334 | if (value & 0x00000400) |
335 | value |= 0xfffff800; | |
336 | else | |
337 | value &= 0x7ff; | |
338 | break; | |
339 | ||
340 | case e_lsel: /* L : Arithmetic shift right 11 bits */ | |
1680791e | 341 | case e_nlsel: /* NL : Arithmetic shift right 11 bits */ |
6c7b3090 | 342 | value += constant_value; |
d9ad93bc KR |
343 | value = (value & 0xfffff800) >> 11; |
344 | break; | |
345 | ||
346 | case e_rsel: /* R : Set bits 0-20 to zero */ | |
6c7b3090 | 347 | value += constant_value; |
d9ad93bc KR |
348 | value = value & 0x7ff; |
349 | break; | |
350 | ||
351 | case e_ldsel: /* LD : Add 0x800, arithmetic shift | |
352 | right 11 bits */ | |
6c7b3090 | 353 | value += constant_value; |
d9ad93bc KR |
354 | value += 0x800; |
355 | value = (value & 0xfffff800) >> 11; | |
356 | break; | |
357 | ||
358 | case e_rdsel: /* RD : Set bits 0-20 to one */ | |
6c7b3090 | 359 | value += constant_value; |
d9ad93bc KR |
360 | value |= 0xfffff800; |
361 | break; | |
362 | ||
363 | case e_lrsel: /* LR : L with "rounded" constant */ | |
1680791e | 364 | case e_nlrsel: /* NLR : NL with "rounded" constant */ |
d9ad93bc KR |
365 | value = value + ((constant_value + 0x1000) & 0xffffe000); |
366 | value = (value & 0xfffff800) >> 11; | |
367 | break; | |
368 | ||
369 | case e_rrsel: /* RR : R with "rounded" constant */ | |
370 | value = value + ((constant_value + 0x1000) & 0xffffe000); | |
371 | value = (value & 0x7ff) + constant_value - ((constant_value + 0x1000) & 0xffffe000); | |
372 | break; | |
373 | ||
374 | default: | |
375 | abort (); | |
376 | } | |
377 | return value; | |
378 | ||
379 | } | |
f6061456 JL |
380 | |
381 | /* PA-RISC OPCODES */ | |
382 | #define get_opcode(insn) ((insn) & 0xfc000000) >> 26 | |
383 | ||
384 | /* FIXME: this list is incomplete. It should also be an enumerated | |
385 | type rather than #defines. */ | |
386 | ||
387 | #define LDO 0x0d | |
388 | #define LDB 0x10 | |
389 | #define LDH 0x11 | |
390 | #define LDW 0x12 | |
391 | #define LDWM 0x13 | |
392 | #define STB 0x18 | |
393 | #define STH 0x19 | |
394 | #define STW 0x1a | |
395 | #define STWM 0x1b | |
396 | #define COMICLR 0x24 | |
397 | #define SUBI 0x25 | |
398 | #define SUBIO 0x25 | |
399 | #define ADDIT 0x2c | |
400 | #define ADDITO 0x2c | |
401 | #define ADDI 0x2d | |
402 | #define ADDIO 0x2d | |
403 | #define LDIL 0x08 | |
404 | #define ADDIL 0x0a | |
405 | ||
406 | #define MOVB 0x32 | |
407 | #define MOVIB 0x33 | |
408 | #define COMBT 0x20 | |
409 | #define COMBF 0x22 | |
410 | #define COMIBT 0x21 | |
411 | #define COMIBF 0x23 | |
412 | #define ADDBT 0x28 | |
413 | #define ADDBF 0x2a | |
414 | #define ADDIBT 0x29 | |
415 | #define ADDIBF 0x2b | |
416 | #define BVB 0x30 | |
417 | #define BB 0x31 | |
418 | ||
419 | #define BL 0x3a | |
420 | #define BLE 0x39 | |
421 | #define BE 0x38 | |
422 | ||
423 | ||
424 | /* Given a machine instruction, return its format. | |
425 | ||
426 | FIXME: opcodes which do not map to a known format | |
427 | should return an error of some sort. */ | |
428 | ||
1680791e | 429 | HINLINE char |
f6061456 JL |
430 | bfd_hppa_insn2fmt (insn) |
431 | unsigned long insn; | |
432 | { | |
433 | char fmt = -1; | |
434 | unsigned char op = get_opcode (insn); | |
435 | ||
436 | switch (op) | |
437 | { | |
438 | case ADDI: | |
439 | case ADDIT: | |
440 | case SUBI: | |
441 | fmt = 11; | |
442 | break; | |
443 | case MOVB: | |
444 | case MOVIB: | |
445 | case COMBT: | |
446 | case COMBF: | |
447 | case COMIBT: | |
448 | case COMIBF: | |
449 | case ADDBT: | |
450 | case ADDBF: | |
451 | case ADDIBT: | |
452 | case ADDIBF: | |
453 | case BVB: | |
454 | case BB: | |
455 | fmt = 12; | |
456 | break; | |
457 | case LDO: | |
458 | case LDB: | |
459 | case LDH: | |
460 | case LDW: | |
461 | case LDWM: | |
462 | case STB: | |
463 | case STH: | |
464 | case STW: | |
465 | case STWM: | |
466 | fmt = 14; | |
467 | break; | |
468 | case BL: | |
469 | case BE: | |
470 | case BLE: | |
471 | fmt = 17; | |
472 | break; | |
473 | case LDIL: | |
474 | case ADDIL: | |
475 | fmt = 21; | |
476 | break; | |
477 | default: | |
478 | fmt = 32; | |
479 | break; | |
480 | } | |
481 | return fmt; | |
482 | } | |
483 | ||
484 | ||
485 | /* Insert VALUE into INSN using R_FORMAT to determine exactly what | |
486 | bits to change. */ | |
487 | ||
1680791e | 488 | HINLINE unsigned long |
f6061456 JL |
489 | hppa_rebuild_insn (abfd, insn, value, r_format) |
490 | bfd *abfd; | |
491 | unsigned long insn; | |
492 | unsigned long value; | |
493 | unsigned long r_format; | |
494 | { | |
495 | unsigned long const_part; | |
496 | unsigned long rebuilt_part; | |
497 | ||
498 | switch (r_format) | |
499 | { | |
500 | case 11: | |
501 | { | |
502 | unsigned w1, w; | |
503 | ||
504 | const_part = insn & 0xffffe002; | |
505 | dis_assemble_12 (value, &w1, &w); | |
506 | rebuilt_part = (w1 << 2) | w; | |
507 | return const_part | rebuilt_part; | |
508 | } | |
509 | ||
510 | case 12: | |
511 | { | |
512 | unsigned w1, w; | |
513 | ||
514 | const_part = insn & 0xffffe002; | |
515 | dis_assemble_12 (value, &w1, &w); | |
516 | rebuilt_part = (w1 << 2) | w; | |
517 | return const_part | rebuilt_part; | |
518 | } | |
519 | ||
520 | case 14: | |
521 | const_part = insn & 0xffffc000; | |
522 | low_sign_unext (value, 14, &rebuilt_part); | |
523 | return const_part | rebuilt_part; | |
524 | ||
525 | case 17: | |
526 | { | |
527 | unsigned w1, w2, w; | |
528 | ||
529 | const_part = insn & 0xffe0e002; | |
530 | dis_assemble_17 (value, &w1, &w2, &w); | |
531 | rebuilt_part = (w2 << 2) | (w1 << 16) | w; | |
532 | return const_part | rebuilt_part; | |
533 | } | |
534 | ||
535 | case 21: | |
536 | const_part = insn & 0xffe00000; | |
537 | dis_assemble_21 (value, &rebuilt_part); | |
538 | return const_part | rebuilt_part; | |
539 | ||
540 | case 32: | |
541 | const_part = 0; | |
542 | return value; | |
543 | ||
544 | default: | |
545 | abort (); | |
546 | } | |
547 | return insn; | |
548 | } | |
549 | ||
d9ad93bc | 550 | #endif /* _HPPA_H */ |