Commit | Line | Data |
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07c1b327 | 1 | /* tc-bfin.c -- Assembler for the ADI Blackfin. |
ec2655a6 | 2 | Copyright 2005, 2006, 2007 |
07c1b327 CM |
3 | Free Software Foundation, Inc. |
4 | ||
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 9 | the Free Software Foundation; either version 3, or (at your option) |
07c1b327 CM |
10 | any later version. |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA | |
20 | 02110-1301, USA. */ | |
21 | ||
22 | #include "as.h" | |
23 | #include "struc-symbol.h" | |
07c1b327 CM |
24 | #include "bfin-defs.h" |
25 | #include "obstack.h" | |
26 | #include "safe-ctype.h" | |
27 | #ifdef OBJ_ELF | |
28 | #include "dwarf2dbg.h" | |
29 | #endif | |
1ac4baed BS |
30 | #include "libbfd.h" |
31 | #include "elf/common.h" | |
32 | #include "elf/bfin.h" | |
07c1b327 CM |
33 | |
34 | extern int yyparse (void); | |
35 | struct yy_buffer_state; | |
36 | typedef struct yy_buffer_state *YY_BUFFER_STATE; | |
37 | extern YY_BUFFER_STATE yy_scan_string (const char *yy_str); | |
38 | extern void yy_delete_buffer (YY_BUFFER_STATE b); | |
39 | static parse_state parse (char *line); | |
40 | static void bfin_s_bss PARAMS ((int)); | |
9ba4c445 | 41 | static int md_chars_to_number PARAMS ((char *, int)); |
07c1b327 CM |
42 | |
43 | /* Global variables. */ | |
44 | struct bfin_insn *insn; | |
45 | int last_insn_size; | |
46 | ||
47 | extern struct obstack mempool; | |
48 | FILE *errorf; | |
49 | ||
1ac4baed BS |
50 | /* Flags to set in the elf header */ |
51 | #define DEFAULT_FLAGS 0 | |
52 | ||
53 | static flagword bfin_flags = DEFAULT_FLAGS; | |
54 | static const char *bfin_pic_flag = (const char *)0; | |
55 | ||
07c1b327 CM |
56 | /* Registers list. */ |
57 | struct bfin_reg_entry | |
58 | { | |
59 | const char *name; | |
60 | int number; | |
61 | }; | |
62 | ||
63 | static const struct bfin_reg_entry bfin_reg_info[] = { | |
64 | {"R0.L", REG_RL0}, | |
65 | {"R1.L", REG_RL1}, | |
66 | {"R2.L", REG_RL2}, | |
67 | {"R3.L", REG_RL3}, | |
68 | {"R4.L", REG_RL4}, | |
69 | {"R5.L", REG_RL5}, | |
70 | {"R6.L", REG_RL6}, | |
71 | {"R7.L", REG_RL7}, | |
72 | {"R0.H", REG_RH0}, | |
73 | {"R1.H", REG_RH1}, | |
74 | {"R2.H", REG_RH2}, | |
75 | {"R3.H", REG_RH3}, | |
76 | {"R4.H", REG_RH4}, | |
77 | {"R5.H", REG_RH5}, | |
78 | {"R6.H", REG_RH6}, | |
79 | {"R7.H", REG_RH7}, | |
80 | {"R0", REG_R0}, | |
81 | {"R1", REG_R1}, | |
82 | {"R2", REG_R2}, | |
83 | {"R3", REG_R3}, | |
84 | {"R4", REG_R4}, | |
85 | {"R5", REG_R5}, | |
86 | {"R6", REG_R6}, | |
87 | {"R7", REG_R7}, | |
88 | {"P0", REG_P0}, | |
89 | {"P0.H", REG_P0}, | |
90 | {"P0.L", REG_P0}, | |
91 | {"P1", REG_P1}, | |
92 | {"P1.H", REG_P1}, | |
93 | {"P1.L", REG_P1}, | |
94 | {"P2", REG_P2}, | |
95 | {"P2.H", REG_P2}, | |
96 | {"P2.L", REG_P2}, | |
97 | {"P3", REG_P3}, | |
98 | {"P3.H", REG_P3}, | |
99 | {"P3.L", REG_P3}, | |
100 | {"P4", REG_P4}, | |
101 | {"P4.H", REG_P4}, | |
102 | {"P4.L", REG_P4}, | |
103 | {"P5", REG_P5}, | |
104 | {"P5.H", REG_P5}, | |
105 | {"P5.L", REG_P5}, | |
106 | {"SP", REG_SP}, | |
107 | {"SP.L", REG_SP}, | |
108 | {"SP.H", REG_SP}, | |
109 | {"FP", REG_FP}, | |
110 | {"FP.L", REG_FP}, | |
111 | {"FP.H", REG_FP}, | |
112 | {"A0x", REG_A0x}, | |
113 | {"A1x", REG_A1x}, | |
114 | {"A0w", REG_A0w}, | |
115 | {"A1w", REG_A1w}, | |
116 | {"A0.x", REG_A0x}, | |
117 | {"A1.x", REG_A1x}, | |
118 | {"A0.w", REG_A0w}, | |
119 | {"A1.w", REG_A1w}, | |
120 | {"A0", REG_A0}, | |
121 | {"A0.L", REG_A0}, | |
122 | {"A0.H", REG_A0}, | |
123 | {"A1", REG_A1}, | |
124 | {"A1.L", REG_A1}, | |
125 | {"A1.H", REG_A1}, | |
126 | {"I0", REG_I0}, | |
127 | {"I0.L", REG_I0}, | |
128 | {"I0.H", REG_I0}, | |
129 | {"I1", REG_I1}, | |
130 | {"I1.L", REG_I1}, | |
131 | {"I1.H", REG_I1}, | |
132 | {"I2", REG_I2}, | |
133 | {"I2.L", REG_I2}, | |
134 | {"I2.H", REG_I2}, | |
135 | {"I3", REG_I3}, | |
136 | {"I3.L", REG_I3}, | |
137 | {"I3.H", REG_I3}, | |
138 | {"M0", REG_M0}, | |
139 | {"M0.H", REG_M0}, | |
140 | {"M0.L", REG_M0}, | |
141 | {"M1", REG_M1}, | |
142 | {"M1.H", REG_M1}, | |
143 | {"M1.L", REG_M1}, | |
144 | {"M2", REG_M2}, | |
145 | {"M2.H", REG_M2}, | |
146 | {"M2.L", REG_M2}, | |
147 | {"M3", REG_M3}, | |
148 | {"M3.H", REG_M3}, | |
149 | {"M3.L", REG_M3}, | |
150 | {"B0", REG_B0}, | |
151 | {"B0.H", REG_B0}, | |
152 | {"B0.L", REG_B0}, | |
153 | {"B1", REG_B1}, | |
154 | {"B1.H", REG_B1}, | |
155 | {"B1.L", REG_B1}, | |
156 | {"B2", REG_B2}, | |
157 | {"B2.H", REG_B2}, | |
158 | {"B2.L", REG_B2}, | |
159 | {"B3", REG_B3}, | |
160 | {"B3.H", REG_B3}, | |
161 | {"B3.L", REG_B3}, | |
162 | {"L0", REG_L0}, | |
163 | {"L0.H", REG_L0}, | |
164 | {"L0.L", REG_L0}, | |
165 | {"L1", REG_L1}, | |
166 | {"L1.H", REG_L1}, | |
167 | {"L1.L", REG_L1}, | |
168 | {"L2", REG_L2}, | |
169 | {"L2.H", REG_L2}, | |
170 | {"L2.L", REG_L2}, | |
171 | {"L3", REG_L3}, | |
172 | {"L3.H", REG_L3}, | |
173 | {"L3.L", REG_L3}, | |
174 | {"AZ", S_AZ}, | |
175 | {"AN", S_AN}, | |
176 | {"AC0", S_AC0}, | |
177 | {"AC1", S_AC1}, | |
178 | {"AV0", S_AV0}, | |
179 | {"AV0S", S_AV0S}, | |
180 | {"AV1", S_AV1}, | |
181 | {"AV1S", S_AV1S}, | |
182 | {"AQ", S_AQ}, | |
183 | {"V", S_V}, | |
184 | {"VS", S_VS}, | |
185 | {"sftreset", REG_sftreset}, | |
186 | {"omode", REG_omode}, | |
187 | {"excause", REG_excause}, | |
188 | {"emucause", REG_emucause}, | |
189 | {"idle_req", REG_idle_req}, | |
190 | {"hwerrcause", REG_hwerrcause}, | |
191 | {"CC", REG_CC}, | |
192 | {"LC0", REG_LC0}, | |
193 | {"LC1", REG_LC1}, | |
194 | {"ASTAT", REG_ASTAT}, | |
195 | {"RETS", REG_RETS}, | |
196 | {"LT0", REG_LT0}, | |
197 | {"LB0", REG_LB0}, | |
198 | {"LT1", REG_LT1}, | |
199 | {"LB1", REG_LB1}, | |
200 | {"CYCLES", REG_CYCLES}, | |
201 | {"CYCLES2", REG_CYCLES2}, | |
202 | {"USP", REG_USP}, | |
203 | {"SEQSTAT", REG_SEQSTAT}, | |
204 | {"SYSCFG", REG_SYSCFG}, | |
205 | {"RETI", REG_RETI}, | |
206 | {"RETX", REG_RETX}, | |
207 | {"RETN", REG_RETN}, | |
208 | {"RETE", REG_RETE}, | |
209 | {"EMUDAT", REG_EMUDAT}, | |
210 | {0, 0} | |
211 | }; | |
212 | ||
1ac4baed BS |
213 | /* Blackfin specific function to handle FD-PIC pointer initializations. */ |
214 | ||
215 | static void | |
216 | bfin_pic_ptr (int nbytes) | |
217 | { | |
218 | expressionS exp; | |
219 | char *p; | |
220 | ||
221 | if (nbytes != 4) | |
222 | abort (); | |
223 | ||
224 | #ifdef md_flush_pending_output | |
225 | md_flush_pending_output (); | |
226 | #endif | |
227 | ||
228 | if (is_it_end_of_statement ()) | |
229 | { | |
230 | demand_empty_rest_of_line (); | |
231 | return; | |
232 | } | |
233 | ||
234 | #ifdef md_cons_align | |
235 | md_cons_align (nbytes); | |
236 | #endif | |
237 | ||
238 | do | |
239 | { | |
240 | bfd_reloc_code_real_type reloc_type = BFD_RELOC_BFIN_FUNCDESC; | |
241 | ||
242 | if (strncasecmp (input_line_pointer, "funcdesc(", 9) == 0) | |
243 | { | |
244 | input_line_pointer += 9; | |
245 | expression (&exp); | |
246 | if (*input_line_pointer == ')') | |
247 | input_line_pointer++; | |
248 | else | |
249 | as_bad ("missing ')'"); | |
250 | } | |
251 | else | |
252 | error ("missing funcdesc in picptr"); | |
253 | ||
254 | p = frag_more (4); | |
255 | memset (p, 0, 4); | |
256 | fix_new_exp (frag_now, p - frag_now->fr_literal, 4, &exp, 0, | |
257 | reloc_type); | |
258 | } | |
259 | while (*input_line_pointer++ == ','); | |
260 | ||
261 | input_line_pointer--; /* Put terminator back into stream. */ | |
262 | demand_empty_rest_of_line (); | |
263 | } | |
264 | ||
265 | static void | |
266 | bfin_s_bss (int ignore ATTRIBUTE_UNUSED) | |
267 | { | |
268 | register int temp; | |
269 | ||
270 | temp = get_absolute_expression (); | |
271 | subseg_set (bss_section, (subsegT) temp); | |
272 | demand_empty_rest_of_line (); | |
273 | } | |
07c1b327 CM |
274 | |
275 | const pseudo_typeS md_pseudo_table[] = { | |
276 | {"align", s_align_bytes, 0}, | |
277 | {"byte2", cons, 2}, | |
278 | {"byte4", cons, 4}, | |
1ac4baed | 279 | {"picptr", bfin_pic_ptr, 4}, |
07c1b327 CM |
280 | {"code", obj_elf_section, 0}, |
281 | {"db", cons, 1}, | |
282 | {"dd", cons, 4}, | |
283 | {"dw", cons, 2}, | |
284 | {"p", s_ignore, 0}, | |
285 | {"pdata", s_ignore, 0}, | |
286 | {"var", s_ignore, 0}, | |
287 | {"bss", bfin_s_bss, 0}, | |
288 | {0, 0, 0} | |
289 | }; | |
290 | ||
07c1b327 CM |
291 | /* Characters that are used to denote comments and line separators. */ |
292 | const char comment_chars[] = ""; | |
293 | const char line_comment_chars[] = "#"; | |
294 | const char line_separator_chars[] = ";"; | |
295 | ||
296 | /* Characters that can be used to separate the mantissa from the | |
297 | exponent in floating point numbers. */ | |
298 | const char EXP_CHARS[] = "eE"; | |
299 | ||
300 | /* Characters that mean this number is a floating point constant. | |
301 | As in 0f12.456 or 0d1.2345e12. */ | |
302 | const char FLT_CHARS[] = "fFdDxX"; | |
303 | ||
304 | /* Define bfin-specific command-line options (there are none). */ | |
305 | const char *md_shortopts = ""; | |
306 | ||
1ac4baed BS |
307 | #define OPTION_FDPIC (OPTION_MD_BASE) |
308 | ||
309 | struct option md_longopts[] = | |
310 | { | |
311 | { "mfdpic", no_argument, NULL, OPTION_FDPIC }, | |
312 | { NULL, no_argument, NULL, 0 }, | |
07c1b327 | 313 | }; |
1ac4baed | 314 | |
07c1b327 CM |
315 | size_t md_longopts_size = sizeof (md_longopts); |
316 | ||
317 | ||
318 | int | |
319 | md_parse_option (int c ATTRIBUTE_UNUSED, char *arg ATTRIBUTE_UNUSED) | |
320 | { | |
1ac4baed BS |
321 | switch (c) |
322 | { | |
323 | default: | |
324 | return 0; | |
325 | ||
326 | case OPTION_FDPIC: | |
327 | bfin_flags |= EF_BFIN_FDPIC; | |
328 | bfin_pic_flag = "-mfdpic"; | |
329 | break; | |
330 | } | |
331 | ||
332 | return 1; | |
07c1b327 CM |
333 | } |
334 | ||
335 | void | |
336 | md_show_usage (FILE * stream ATTRIBUTE_UNUSED) | |
337 | { | |
338 | fprintf (stream, _(" BFIN specific command line options:\n")); | |
339 | } | |
340 | ||
341 | /* Perform machine-specific initializations. */ | |
342 | void | |
343 | md_begin () | |
344 | { | |
1ac4baed BS |
345 | /* Set the ELF flags if desired. */ |
346 | if (bfin_flags) | |
347 | bfd_set_private_flags (stdoutput, bfin_flags); | |
348 | ||
07c1b327 CM |
349 | /* Set the default machine type. */ |
350 | if (!bfd_set_arch_mach (stdoutput, bfd_arch_bfin, 0)) | |
351 | as_warn ("Could not set architecture and machine."); | |
352 | ||
353 | /* Ensure that lines can begin with '(', for multiple | |
354 | register stack pops. */ | |
9f8e671b | 355 | lex_type ['('] = LEX_BEGIN_NAME; |
07c1b327 CM |
356 | |
357 | #ifdef OBJ_ELF | |
358 | record_alignment (text_section, 2); | |
359 | record_alignment (data_section, 2); | |
360 | record_alignment (bss_section, 2); | |
361 | #endif | |
362 | ||
363 | errorf = stderr; | |
364 | obstack_init (&mempool); | |
365 | ||
366 | #ifdef DEBUG | |
367 | extern int debug_codeselection; | |
368 | debug_codeselection = 1; | |
369 | #endif | |
370 | ||
371 | last_insn_size = 0; | |
372 | } | |
373 | ||
374 | /* Perform the main parsing, and assembly of the input here. Also, | |
375 | call the required routines for alignment and fixups here. | |
376 | This is called for every line that contains real assembly code. */ | |
377 | ||
378 | void | |
379 | md_assemble (char *line) | |
380 | { | |
381 | char *toP = 0; | |
382 | extern char *current_inputline; | |
383 | int size, insn_size; | |
384 | struct bfin_insn *tmp_insn; | |
385 | size_t len; | |
386 | static size_t buffer_len = 0; | |
387 | parse_state state; | |
388 | ||
389 | len = strlen (line); | |
390 | if (len + 2 > buffer_len) | |
391 | { | |
392 | if (buffer_len > 0) | |
393 | free (current_inputline); | |
394 | buffer_len = len + 40; | |
395 | current_inputline = xmalloc (buffer_len); | |
396 | } | |
397 | memcpy (current_inputline, line, len); | |
398 | current_inputline[len] = ';'; | |
399 | current_inputline[len + 1] = '\0'; | |
400 | ||
401 | state = parse (current_inputline); | |
402 | if (state == NO_INSN_GENERATED) | |
403 | return; | |
404 | ||
405 | for (insn_size = 0, tmp_insn = insn; tmp_insn; tmp_insn = tmp_insn->next) | |
406 | if (!tmp_insn->reloc || !tmp_insn->exp->symbol) | |
407 | insn_size += 2; | |
408 | ||
409 | if (insn_size) | |
410 | toP = frag_more (insn_size); | |
411 | ||
412 | last_insn_size = insn_size; | |
413 | ||
414 | #ifdef DEBUG | |
415 | printf ("INS:"); | |
416 | #endif | |
417 | while (insn) | |
418 | { | |
419 | if (insn->reloc && insn->exp->symbol) | |
420 | { | |
421 | char *prev_toP = toP - 2; | |
422 | switch (insn->reloc) | |
423 | { | |
424 | case BFD_RELOC_BFIN_24_PCREL_JUMP_L: | |
425 | case BFD_RELOC_24_PCREL: | |
426 | case BFD_RELOC_BFIN_16_LOW: | |
427 | case BFD_RELOC_BFIN_16_HIGH: | |
428 | size = 4; | |
429 | break; | |
430 | default: | |
431 | size = 2; | |
432 | } | |
433 | ||
434 | /* Following if condition checks for the arithmetic relocations. | |
435 | If the case then it doesn't required to generate the code. | |
436 | It has been assumed that, their ID will be contiguous. */ | |
437 | if ((BFD_ARELOC_BFIN_PUSH <= insn->reloc | |
438 | && BFD_ARELOC_BFIN_COMP >= insn->reloc) | |
439 | || insn->reloc == BFD_RELOC_BFIN_16_IMM) | |
440 | { | |
441 | size = 2; | |
442 | } | |
443 | if (insn->reloc == BFD_ARELOC_BFIN_CONST | |
444 | || insn->reloc == BFD_ARELOC_BFIN_PUSH) | |
445 | size = 4; | |
446 | ||
447 | fix_new (frag_now, | |
448 | (prev_toP - frag_now->fr_literal), | |
449 | size, insn->exp->symbol, insn->exp->value, | |
450 | insn->pcrel, insn->reloc); | |
451 | } | |
452 | else | |
453 | { | |
454 | md_number_to_chars (toP, insn->value, 2); | |
455 | toP += 2; | |
456 | } | |
457 | ||
458 | #ifdef DEBUG | |
459 | printf (" reloc :"); | |
460 | printf (" %02x%02x", ((unsigned char *) &insn->value)[0], | |
461 | ((unsigned char *) &insn->value)[1]); | |
462 | printf ("\n"); | |
463 | #endif | |
464 | insn = insn->next; | |
465 | } | |
466 | #ifdef OBJ_ELF | |
467 | dwarf2_emit_insn (insn_size); | |
468 | #endif | |
469 | } | |
470 | ||
471 | /* Parse one line of instructions, and generate opcode for it. | |
472 | To parse the line, YACC and LEX are used, because the instruction set | |
473 | syntax doesn't confirm to the AT&T assembly syntax. | |
474 | To call a YACC & LEX generated parser, we must provide the input via | |
475 | a FILE stream, otherwise stdin is used by default. Below the input | |
476 | to the function will be put into a temporary file, then the generated | |
477 | parser uses the temporary file for parsing. */ | |
478 | ||
479 | static parse_state | |
480 | parse (char *line) | |
481 | { | |
482 | parse_state state; | |
483 | YY_BUFFER_STATE buffstate; | |
484 | ||
485 | buffstate = yy_scan_string (line); | |
486 | ||
487 | /* our lex requires setting the start state to keyword | |
488 | every line as the first word may be a keyword. | |
489 | Fixes a bug where we could not have keywords as labels. */ | |
490 | set_start_state (); | |
491 | ||
492 | /* Call yyparse here. */ | |
493 | state = yyparse (); | |
494 | if (state == SEMANTIC_ERROR) | |
495 | { | |
496 | as_bad ("Parse failed."); | |
497 | insn = 0; | |
498 | } | |
499 | ||
500 | yy_delete_buffer (buffstate); | |
501 | return state; | |
502 | } | |
503 | ||
504 | /* We need to handle various expressions properly. | |
505 | Such as, [SP--] = 34, concerned by md_assemble(). */ | |
506 | ||
507 | void | |
508 | md_operand (expressionS * expressionP) | |
509 | { | |
510 | if (*input_line_pointer == '[') | |
511 | { | |
512 | as_tsktsk ("We found a '['!"); | |
513 | input_line_pointer++; | |
514 | expression (expressionP); | |
515 | } | |
516 | } | |
517 | ||
518 | /* Handle undefined symbols. */ | |
519 | symbolS * | |
520 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) | |
521 | { | |
522 | return (symbolS *) 0; | |
523 | } | |
524 | ||
525 | int | |
526 | md_estimate_size_before_relax (fragS * fragP ATTRIBUTE_UNUSED, | |
527 | segT segment ATTRIBUTE_UNUSED) | |
528 | { | |
529 | return 0; | |
530 | } | |
531 | ||
532 | /* Convert from target byte order to host byte order. */ | |
533 | ||
534 | static int | |
9ba4c445 | 535 | md_chars_to_number (char *val, int n) |
07c1b327 CM |
536 | { |
537 | int retval; | |
538 | ||
539 | for (retval = 0; n--;) | |
540 | { | |
541 | retval <<= 8; | |
542 | retval |= val[n]; | |
543 | } | |
544 | return retval; | |
545 | } | |
546 | ||
547 | void | |
548 | md_apply_fix (fixS *fixP, valueT *valueP, segT seg ATTRIBUTE_UNUSED) | |
549 | { | |
550 | char *where = fixP->fx_frag->fr_literal + fixP->fx_where; | |
551 | ||
552 | long value = *valueP; | |
553 | long newval; | |
554 | ||
555 | switch (fixP->fx_r_type) | |
556 | { | |
557 | case BFD_RELOC_BFIN_GOT: | |
1ac4baed BS |
558 | case BFD_RELOC_BFIN_GOT17M4: |
559 | case BFD_RELOC_BFIN_FUNCDESC_GOT17M4: | |
07c1b327 CM |
560 | fixP->fx_no_overflow = 1; |
561 | newval = md_chars_to_number (where, 2); | |
562 | newval |= 0x0 & 0x7f; | |
563 | md_number_to_chars (where, newval, 2); | |
564 | break; | |
565 | ||
566 | case BFD_RELOC_BFIN_10_PCREL: | |
567 | if (!value) | |
568 | break; | |
569 | if (value < -1024 || value > 1022) | |
570 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
571 | "pcrel too far BFD_RELOC_BFIN_10"); | |
572 | ||
573 | /* 11 bit offset even numbered, so we remove right bit. */ | |
574 | value = value >> 1; | |
575 | newval = md_chars_to_number (where, 2); | |
576 | newval |= value & 0x03ff; | |
577 | md_number_to_chars (where, newval, 2); | |
578 | break; | |
579 | ||
580 | case BFD_RELOC_BFIN_12_PCREL_JUMP: | |
581 | case BFD_RELOC_BFIN_12_PCREL_JUMP_S: | |
582 | case BFD_RELOC_12_PCREL: | |
583 | if (!value) | |
584 | break; | |
585 | ||
586 | if (value < -4096 || value > 4094) | |
587 | as_bad_where (fixP->fx_file, fixP->fx_line, "pcrel too far BFD_RELOC_BFIN_12"); | |
588 | /* 13 bit offset even numbered, so we remove right bit. */ | |
589 | value = value >> 1; | |
590 | newval = md_chars_to_number (where, 2); | |
591 | newval |= value & 0xfff; | |
592 | md_number_to_chars (where, newval, 2); | |
593 | break; | |
594 | ||
595 | case BFD_RELOC_BFIN_16_LOW: | |
596 | case BFD_RELOC_BFIN_16_HIGH: | |
597 | fixP->fx_done = FALSE; | |
598 | break; | |
599 | ||
600 | case BFD_RELOC_BFIN_24_PCREL_JUMP_L: | |
601 | case BFD_RELOC_BFIN_24_PCREL_CALL_X: | |
602 | case BFD_RELOC_24_PCREL: | |
603 | if (!value) | |
604 | break; | |
605 | ||
606 | if (value < -16777216 || value > 16777214) | |
607 | as_bad_where (fixP->fx_file, fixP->fx_line, "pcrel too far BFD_RELOC_BFIN_24"); | |
608 | ||
609 | /* 25 bit offset even numbered, so we remove right bit. */ | |
610 | value = value >> 1; | |
611 | value++; | |
612 | ||
613 | md_number_to_chars (where - 2, value >> 16, 1); | |
614 | md_number_to_chars (where, value, 1); | |
615 | md_number_to_chars (where + 1, value >> 8, 1); | |
616 | break; | |
617 | ||
618 | case BFD_RELOC_BFIN_5_PCREL: /* LSETUP (a, b) : "a" */ | |
619 | if (!value) | |
620 | break; | |
621 | if (value < 4 || value > 30) | |
622 | as_bad_where (fixP->fx_file, fixP->fx_line, "pcrel too far BFD_RELOC_BFIN_5"); | |
623 | value = value >> 1; | |
624 | newval = md_chars_to_number (where, 1); | |
625 | newval = (newval & 0xf0) | (value & 0xf); | |
626 | md_number_to_chars (where, newval, 1); | |
627 | break; | |
628 | ||
629 | case BFD_RELOC_BFIN_11_PCREL: /* LSETUP (a, b) : "b" */ | |
630 | if (!value) | |
631 | break; | |
632 | value += 2; | |
633 | if (value < 4 || value > 2046) | |
634 | as_bad_where (fixP->fx_file, fixP->fx_line, "pcrel too far BFD_RELOC_BFIN_11_PCREL"); | |
635 | /* 11 bit unsigned even, so we remove right bit. */ | |
636 | value = value >> 1; | |
637 | newval = md_chars_to_number (where, 2); | |
638 | newval |= value & 0x03ff; | |
639 | md_number_to_chars (where, newval, 2); | |
640 | break; | |
641 | ||
642 | case BFD_RELOC_8: | |
643 | if (value < -0x80 || value >= 0x7f) | |
644 | as_bad_where (fixP->fx_file, fixP->fx_line, "rel too far BFD_RELOC_8"); | |
645 | md_number_to_chars (where, value, 1); | |
646 | break; | |
647 | ||
648 | case BFD_RELOC_BFIN_16_IMM: | |
649 | case BFD_RELOC_16: | |
650 | if (value < -0x8000 || value >= 0x7fff) | |
33ffbed9 | 651 | as_bad_where (fixP->fx_file, fixP->fx_line, "rel too far BFD_RELOC_16"); |
07c1b327 CM |
652 | md_number_to_chars (where, value, 2); |
653 | break; | |
654 | ||
655 | case BFD_RELOC_32: | |
656 | md_number_to_chars (where, value, 4); | |
657 | break; | |
658 | ||
659 | case BFD_RELOC_BFIN_PLTPC: | |
660 | md_number_to_chars (where, value, 2); | |
661 | break; | |
662 | ||
1ac4baed | 663 | case BFD_RELOC_BFIN_FUNCDESC: |
07c1b327 CM |
664 | case BFD_RELOC_VTABLE_INHERIT: |
665 | case BFD_RELOC_VTABLE_ENTRY: | |
666 | fixP->fx_done = FALSE; | |
667 | break; | |
668 | ||
669 | default: | |
670 | if ((BFD_ARELOC_BFIN_PUSH > fixP->fx_r_type) || (BFD_ARELOC_BFIN_COMP < fixP->fx_r_type)) | |
671 | { | |
672 | fprintf (stderr, "Relocation %d not handled in gas." " Contact support.\n", fixP->fx_r_type); | |
673 | return; | |
674 | } | |
675 | } | |
676 | ||
677 | if (!fixP->fx_addsy) | |
678 | fixP->fx_done = TRUE; | |
679 | ||
680 | } | |
681 | ||
682 | /* Round up a section size to the appropriate boundary. */ | |
683 | valueT | |
684 | md_section_align (segment, size) | |
685 | segT segment; | |
686 | valueT size; | |
687 | { | |
688 | int boundary = bfd_get_section_alignment (stdoutput, segment); | |
689 | return ((size + (1 << boundary) - 1) & (-1 << boundary)); | |
690 | } | |
691 | ||
692 | ||
693 | /* Turn a string in input_line_pointer into a floating point | |
694 | constant of type type, and store the appropriate bytes in | |
695 | *litP. The number of LITTLENUMS emitted is stored in *sizeP. | |
696 | An error message is returned, or NULL on OK. */ | |
697 | ||
698 | /* Equal to MAX_PRECISION in atof-ieee.c. */ | |
699 | #define MAX_LITTLENUMS 6 | |
700 | ||
701 | char * | |
702 | md_atof (type, litP, sizeP) | |
703 | char type; | |
704 | char * litP; | |
705 | int * sizeP; | |
706 | { | |
707 | int prec; | |
708 | LITTLENUM_TYPE words [MAX_LITTLENUMS]; | |
709 | LITTLENUM_TYPE *wordP; | |
710 | char * t; | |
711 | ||
712 | switch (type) | |
713 | { | |
714 | case 'f': | |
715 | case 'F': | |
716 | prec = 2; | |
717 | break; | |
718 | ||
719 | case 'd': | |
720 | case 'D': | |
721 | prec = 4; | |
722 | break; | |
723 | ||
724 | /* FIXME: Some targets allow other format chars for bigger sizes here. */ | |
725 | ||
726 | default: | |
727 | *sizeP = 0; | |
728 | return _("Bad call to md_atof()"); | |
729 | } | |
730 | ||
731 | t = atof_ieee (input_line_pointer, type, words); | |
732 | if (t) | |
733 | input_line_pointer = t; | |
734 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
735 | ||
736 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
737 | /* This loops outputs the LITTLENUMs in REVERSE order; in accord with | |
738 | the littleendianness of the processor. */ | |
739 | for (wordP = words + prec - 1; prec--;) | |
740 | { | |
741 | md_number_to_chars (litP, (valueT) (*wordP--), sizeof (LITTLENUM_TYPE)); | |
742 | litP += sizeof (LITTLENUM_TYPE); | |
743 | } | |
744 | ||
745 | return 0; | |
746 | } | |
747 | ||
748 | ||
749 | /* If while processing a fixup, a reloc really needs to be created | |
750 | then it is done here. */ | |
751 | ||
752 | arelent * | |
753 | tc_gen_reloc (seg, fixp) | |
754 | asection *seg ATTRIBUTE_UNUSED; | |
755 | fixS *fixp; | |
756 | { | |
757 | arelent *reloc; | |
758 | ||
759 | reloc = (arelent *) xmalloc (sizeof (arelent)); | |
760 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); | |
761 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
762 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
763 | ||
764 | reloc->addend = fixp->fx_offset; | |
765 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
766 | ||
767 | if (reloc->howto == (reloc_howto_type *) NULL) | |
768 | { | |
769 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
770 | /* xgettext:c-format. */ | |
771 | _("reloc %d not supported by object file format"), | |
772 | (int) fixp->fx_r_type); | |
773 | ||
774 | xfree (reloc); | |
775 | ||
776 | return NULL; | |
777 | } | |
778 | ||
779 | return reloc; | |
780 | } | |
781 | ||
782 | /* The location from which a PC relative jump should be calculated, | |
783 | given a PC relative reloc. */ | |
784 | ||
785 | long | |
786 | md_pcrel_from_section (fixP, sec) | |
787 | fixS *fixP; | |
788 | segT sec; | |
789 | { | |
790 | if (fixP->fx_addsy != (symbolS *) NULL | |
791 | && (!S_IS_DEFINED (fixP->fx_addsy) | |
792 | || S_GET_SEGMENT (fixP->fx_addsy) != sec)) | |
793 | { | |
794 | /* The symbol is undefined (or is defined but not in this section). | |
795 | Let the linker figure it out. */ | |
796 | return 0; | |
797 | } | |
798 | return fixP->fx_frag->fr_address + fixP->fx_where; | |
799 | } | |
800 | ||
801 | /* Return true if the fix can be handled by GAS, false if it must | |
802 | be passed through to the linker. */ | |
803 | ||
804 | bfd_boolean | |
805 | bfin_fix_adjustable (fixS *fixP) | |
806 | { | |
807 | switch (fixP->fx_r_type) | |
808 | { | |
809 | /* Adjust_reloc_syms doesn't know about the GOT. */ | |
1ac4baed BS |
810 | case BFD_RELOC_BFIN_GOT: |
811 | case BFD_RELOC_BFIN_GOT17M4: | |
812 | case BFD_RELOC_BFIN_FUNCDESC_GOT17M4: | |
813 | case BFD_RELOC_BFIN_PLTPC: | |
07c1b327 CM |
814 | /* We need the symbol name for the VTABLE entries. */ |
815 | case BFD_RELOC_VTABLE_INHERIT: | |
816 | case BFD_RELOC_VTABLE_ENTRY: | |
817 | return 0; | |
818 | ||
819 | default: | |
820 | return 1; | |
821 | } | |
822 | } | |
823 | ||
824 | ||
825 | /* Handle the LOOP_BEGIN and LOOP_END statements. | |
826 | Parse the Loop_Begin/Loop_End and create a label. */ | |
827 | void | |
828 | bfin_start_line_hook () | |
829 | { | |
830 | bfd_boolean maybe_begin = FALSE; | |
831 | bfd_boolean maybe_end = FALSE; | |
832 | ||
833 | char *c1, *label_name; | |
834 | symbolS *line_label; | |
835 | char *c = input_line_pointer; | |
8b64503a | 836 | int cr_num = 0; |
07c1b327 CM |
837 | |
838 | while (ISSPACE (*c)) | |
8b64503a JZ |
839 | { |
840 | if (*c == '\n') | |
841 | cr_num++; | |
842 | c++; | |
843 | } | |
07c1b327 | 844 | |
07c1b327 CM |
845 | /* Look for Loop_Begin or Loop_End statements. */ |
846 | ||
847 | if (*c != 'L' && *c != 'l') | |
848 | return; | |
849 | ||
850 | c++; | |
851 | if (*c != 'O' && *c != 'o') | |
852 | return; | |
853 | ||
854 | c++; | |
855 | if (*c != 'O' && *c != 'o') | |
856 | return; | |
857 | ||
858 | c++; | |
859 | if (*c != 'P' && *c != 'p') | |
860 | return; | |
861 | ||
862 | c++; | |
863 | if (*c != '_') | |
864 | return; | |
865 | ||
866 | c++; | |
867 | if (*c == 'E' || *c == 'e') | |
868 | maybe_end = TRUE; | |
869 | else if (*c == 'B' || *c == 'b') | |
870 | maybe_begin = TRUE; | |
871 | else | |
872 | return; | |
873 | ||
874 | if (maybe_end) | |
875 | { | |
876 | c++; | |
877 | if (*c != 'N' && *c != 'n') | |
878 | return; | |
879 | ||
880 | c++; | |
881 | if (*c != 'D' && *c != 'd') | |
882 | return; | |
883 | } | |
884 | ||
885 | if (maybe_begin) | |
886 | { | |
887 | c++; | |
888 | if (*c != 'E' && *c != 'e') | |
889 | return; | |
890 | ||
891 | c++; | |
892 | if (*c != 'G' && *c != 'g') | |
893 | return; | |
894 | ||
895 | c++; | |
896 | if (*c != 'I' && *c != 'i') | |
897 | return; | |
898 | ||
899 | c++; | |
900 | if (*c != 'N' && *c != 'n') | |
901 | return; | |
902 | } | |
903 | ||
904 | c++; | |
905 | while (ISSPACE (*c)) c++; | |
906 | c1 = c; | |
907 | while (ISALPHA (*c) || ISDIGIT (*c) || *c == '_') c++; | |
908 | ||
8b64503a JZ |
909 | if (input_line_pointer[-1] == '\n') |
910 | bump_line_counters (); | |
911 | ||
912 | while (cr_num--) | |
913 | bump_line_counters (); | |
914 | ||
07c1b327 CM |
915 | input_line_pointer = c; |
916 | if (maybe_end) | |
917 | { | |
918 | label_name = (char *) xmalloc ((c - c1) + strlen ("__END") + 1); | |
919 | label_name[0] = 0; | |
920 | strncat (label_name, c1, c-c1); | |
921 | strcat (label_name, "__END"); | |
922 | } | |
923 | else /* maybe_begin. */ | |
924 | { | |
925 | label_name = (char *) xmalloc ((c - c1) + strlen ("__BEGIN") + 1); | |
926 | label_name[0] = 0; | |
927 | strncat (label_name, c1, c-c1); | |
928 | strcat (label_name, "__BEGIN"); | |
929 | } | |
930 | ||
931 | line_label = colon (label_name); | |
932 | ||
933 | /* Loop_End follows the last instruction in the loop. | |
934 | Adjust label address. */ | |
935 | if (maybe_end) | |
936 | line_label->sy_value.X_add_number -= last_insn_size; | |
937 | ||
938 | } | |
939 | ||
940 | /* Special extra functions that help bfin-parse.y perform its job. */ | |
941 | ||
07c1b327 | 942 | #include <assert.h> |
07c1b327 CM |
943 | |
944 | struct obstack mempool; | |
945 | ||
946 | INSTR_T | |
947 | conscode (INSTR_T head, INSTR_T tail) | |
948 | { | |
949 | if (!head) | |
950 | return tail; | |
951 | head->next = tail; | |
952 | return head; | |
953 | } | |
954 | ||
955 | INSTR_T | |
956 | conctcode (INSTR_T head, INSTR_T tail) | |
957 | { | |
958 | INSTR_T temp = (head); | |
959 | if (!head) | |
960 | return tail; | |
961 | while (temp->next) | |
962 | temp = temp->next; | |
963 | temp->next = tail; | |
964 | ||
965 | return head; | |
966 | } | |
967 | ||
968 | INSTR_T | |
969 | note_reloc (INSTR_T code, Expr_Node * symbol, int reloc, int pcrel) | |
970 | { | |
971 | /* Assert that the symbol is not an operator. */ | |
972 | assert (symbol->type == Expr_Node_Reloc); | |
973 | ||
974 | return note_reloc1 (code, symbol->value.s_value, reloc, pcrel); | |
975 | ||
976 | } | |
977 | ||
978 | INSTR_T | |
979 | note_reloc1 (INSTR_T code, const char *symbol, int reloc, int pcrel) | |
980 | { | |
981 | code->reloc = reloc; | |
982 | code->exp = mkexpr (0, symbol_find_or_make (symbol)); | |
983 | code->pcrel = pcrel; | |
984 | return code; | |
985 | } | |
986 | ||
987 | INSTR_T | |
988 | note_reloc2 (INSTR_T code, const char *symbol, int reloc, int value, int pcrel) | |
989 | { | |
990 | code->reloc = reloc; | |
991 | code->exp = mkexpr (value, symbol_find_or_make (symbol)); | |
992 | code->pcrel = pcrel; | |
993 | return code; | |
994 | } | |
995 | ||
996 | INSTR_T | |
997 | gencode (unsigned long x) | |
998 | { | |
999 | INSTR_T cell = (INSTR_T) obstack_alloc (&mempool, sizeof (struct bfin_insn)); | |
1000 | memset (cell, 0, sizeof (struct bfin_insn)); | |
1001 | cell->value = (x); | |
1002 | return cell; | |
1003 | } | |
1004 | ||
1005 | int reloc; | |
1006 | int ninsns; | |
1007 | int count_insns; | |
1008 | ||
1009 | static void * | |
1010 | allocate (int n) | |
1011 | { | |
1012 | return (void *) obstack_alloc (&mempool, n); | |
1013 | } | |
1014 | ||
1015 | Expr_Node * | |
1016 | Expr_Node_Create (Expr_Node_Type type, | |
1017 | Expr_Node_Value value, | |
1018 | Expr_Node *Left_Child, | |
1019 | Expr_Node *Right_Child) | |
1020 | { | |
1021 | ||
1022 | ||
1023 | Expr_Node *node = (Expr_Node *) allocate (sizeof (Expr_Node)); | |
1024 | node->type = type; | |
1025 | node->value = value; | |
1026 | node->Left_Child = Left_Child; | |
1027 | node->Right_Child = Right_Child; | |
1028 | return node; | |
1029 | } | |
1030 | ||
1031 | static const char *con = ".__constant"; | |
1032 | static const char *op = ".__operator"; | |
1033 | static INSTR_T Expr_Node_Gen_Reloc_R (Expr_Node * head); | |
1034 | INSTR_T Expr_Node_Gen_Reloc (Expr_Node *head, int parent_reloc); | |
1035 | ||
1036 | INSTR_T | |
1037 | Expr_Node_Gen_Reloc (Expr_Node * head, int parent_reloc) | |
1038 | { | |
1039 | /* Top level reloction expression generator VDSP style. | |
1040 | If the relocation is just by itself, generate one item | |
1041 | else generate this convoluted expression. */ | |
1042 | ||
1043 | INSTR_T note = NULL_CODE; | |
1044 | INSTR_T note1 = NULL_CODE; | |
1045 | int pcrel = 1; /* Is the parent reloc pcrelative? | |
1046 | This calculation here and HOWTO should match. */ | |
1047 | ||
1048 | if (parent_reloc) | |
1049 | { | |
1050 | /* If it's 32 bit quantity then 16bit code needs to be added. */ | |
1051 | int value = 0; | |
1052 | ||
1053 | if (head->type == Expr_Node_Constant) | |
1054 | { | |
1055 | /* If note1 is not null code, we have to generate a right | |
1056 | aligned value for the constant. Otherwise the reloc is | |
1057 | a part of the basic command and the yacc file | |
1058 | generates this. */ | |
1059 | value = head->value.i_value; | |
1060 | } | |
1061 | switch (parent_reloc) | |
1062 | { | |
708587a4 | 1063 | /* Some relocations will need to allocate extra words. */ |
07c1b327 CM |
1064 | case BFD_RELOC_BFIN_16_IMM: |
1065 | case BFD_RELOC_BFIN_16_LOW: | |
1066 | case BFD_RELOC_BFIN_16_HIGH: | |
1067 | note1 = conscode (gencode (value), NULL_CODE); | |
1068 | pcrel = 0; | |
1069 | break; | |
1070 | case BFD_RELOC_BFIN_PLTPC: | |
1071 | note1 = conscode (gencode (value), NULL_CODE); | |
1072 | pcrel = 0; | |
1073 | break; | |
1074 | case BFD_RELOC_16: | |
1075 | case BFD_RELOC_BFIN_GOT: | |
1ac4baed BS |
1076 | case BFD_RELOC_BFIN_GOT17M4: |
1077 | case BFD_RELOC_BFIN_FUNCDESC_GOT17M4: | |
07c1b327 CM |
1078 | note1 = conscode (gencode (value), NULL_CODE); |
1079 | pcrel = 0; | |
1080 | break; | |
1081 | case BFD_RELOC_24_PCREL: | |
1082 | case BFD_RELOC_BFIN_24_PCREL_JUMP_L: | |
1083 | case BFD_RELOC_BFIN_24_PCREL_CALL_X: | |
1084 | /* These offsets are even numbered pcrel. */ | |
1085 | note1 = conscode (gencode (value >> 1), NULL_CODE); | |
1086 | break; | |
1087 | default: | |
1088 | note1 = NULL_CODE; | |
1089 | } | |
1090 | } | |
1091 | if (head->type == Expr_Node_Constant) | |
1092 | note = note1; | |
1093 | else if (head->type == Expr_Node_Reloc) | |
1094 | { | |
1095 | note = note_reloc1 (gencode (0), head->value.s_value, parent_reloc, pcrel); | |
1096 | if (note1 != NULL_CODE) | |
1097 | note = conscode (note1, note); | |
1098 | } | |
beb6bfe8 BS |
1099 | else if (head->type == Expr_Node_Binop |
1100 | && (head->value.op_value == Expr_Op_Type_Add | |
1101 | || head->value.op_value == Expr_Op_Type_Sub) | |
1102 | && head->Left_Child->type == Expr_Node_Reloc | |
1103 | && head->Right_Child->type == Expr_Node_Constant) | |
1104 | { | |
1105 | int val = head->Right_Child->value.i_value; | |
1106 | if (head->value.op_value == Expr_Op_Type_Sub) | |
1107 | val = -val; | |
1108 | note = conscode (note_reloc2 (gencode (0), head->Left_Child->value.s_value, | |
1109 | parent_reloc, val, 0), | |
1110 | NULL_CODE); | |
1111 | if (note1 != NULL_CODE) | |
1112 | note = conscode (note1, note); | |
1113 | } | |
07c1b327 CM |
1114 | else |
1115 | { | |
1116 | /* Call the recursive function. */ | |
1117 | note = note_reloc1 (gencode (0), op, parent_reloc, pcrel); | |
1118 | if (note1 != NULL_CODE) | |
1119 | note = conscode (note1, note); | |
1120 | note = conctcode (Expr_Node_Gen_Reloc_R (head), note); | |
1121 | } | |
1122 | return note; | |
1123 | } | |
1124 | ||
1125 | static INSTR_T | |
1126 | Expr_Node_Gen_Reloc_R (Expr_Node * head) | |
1127 | { | |
1128 | ||
1129 | INSTR_T note = 0; | |
1130 | INSTR_T note1 = 0; | |
1131 | ||
1132 | switch (head->type) | |
1133 | { | |
1134 | case Expr_Node_Constant: | |
1135 | note = conscode (note_reloc2 (gencode (0), con, BFD_ARELOC_BFIN_CONST, head->value.i_value, 0), NULL_CODE); | |
1136 | break; | |
1137 | case Expr_Node_Reloc: | |
1138 | note = conscode (note_reloc (gencode (0), head, BFD_ARELOC_BFIN_PUSH, 0), NULL_CODE); | |
1139 | break; | |
1140 | case Expr_Node_Binop: | |
1141 | note1 = conctcode (Expr_Node_Gen_Reloc_R (head->Left_Child), Expr_Node_Gen_Reloc_R (head->Right_Child)); | |
1142 | switch (head->value.op_value) | |
1143 | { | |
1144 | case Expr_Op_Type_Add: | |
1145 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_ADD, 0), NULL_CODE)); | |
1146 | break; | |
1147 | case Expr_Op_Type_Sub: | |
1148 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_SUB, 0), NULL_CODE)); | |
1149 | break; | |
1150 | case Expr_Op_Type_Mult: | |
1151 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_MULT, 0), NULL_CODE)); | |
1152 | break; | |
1153 | case Expr_Op_Type_Div: | |
1154 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_DIV, 0), NULL_CODE)); | |
1155 | break; | |
1156 | case Expr_Op_Type_Mod: | |
1157 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_MOD, 0), NULL_CODE)); | |
1158 | break; | |
1159 | case Expr_Op_Type_Lshift: | |
1160 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_LSHIFT, 0), NULL_CODE)); | |
1161 | break; | |
1162 | case Expr_Op_Type_Rshift: | |
1163 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_RSHIFT, 0), NULL_CODE)); | |
1164 | break; | |
1165 | case Expr_Op_Type_BAND: | |
1166 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_AND, 0), NULL_CODE)); | |
1167 | break; | |
1168 | case Expr_Op_Type_BOR: | |
1169 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_OR, 0), NULL_CODE)); | |
1170 | break; | |
1171 | case Expr_Op_Type_BXOR: | |
1172 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_XOR, 0), NULL_CODE)); | |
1173 | break; | |
1174 | case Expr_Op_Type_LAND: | |
1175 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_LAND, 0), NULL_CODE)); | |
1176 | break; | |
1177 | case Expr_Op_Type_LOR: | |
1178 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_LOR, 0), NULL_CODE)); | |
1179 | break; | |
1180 | default: | |
df3e8017 | 1181 | fprintf (stderr, "%s:%d:Unknown operator found for arithmetic" " relocation", __FILE__, __LINE__); |
07c1b327 CM |
1182 | |
1183 | ||
1184 | } | |
1185 | break; | |
1186 | case Expr_Node_Unop: | |
1187 | note1 = conscode (Expr_Node_Gen_Reloc_R (head->Left_Child), NULL_CODE); | |
1188 | switch (head->value.op_value) | |
1189 | { | |
1190 | case Expr_Op_Type_NEG: | |
1191 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_NEG, 0), NULL_CODE)); | |
1192 | break; | |
1193 | case Expr_Op_Type_COMP: | |
1194 | note = conctcode (note1, conscode (note_reloc1 (gencode (0), op, BFD_ARELOC_BFIN_COMP, 0), NULL_CODE)); | |
1195 | break; | |
1196 | default: | |
df3e8017 | 1197 | fprintf (stderr, "%s:%d:Unknown operator found for arithmetic" " relocation", __FILE__, __LINE__); |
07c1b327 CM |
1198 | } |
1199 | break; | |
1200 | default: | |
1201 | fprintf (stderr, "%s:%d:Unknown node expression found during " "arithmetic relocation generation", __FILE__, __LINE__); | |
1202 | } | |
1203 | return note; | |
1204 | } | |
1205 | ||
1206 | ||
1207 | /* Blackfin opcode generation. */ | |
1208 | ||
1209 | /* These functions are called by the generated parser | |
1210 | (from bfin-parse.y), the register type classification | |
1211 | happens in bfin-lex.l. */ | |
1212 | ||
1213 | #include "bfin-aux.h" | |
1214 | #include "opcode/bfin.h" | |
1215 | ||
1216 | #define INIT(t) t c_code = init_##t | |
1217 | #define ASSIGN(x) c_code.opcode |= ((x & c_code.mask_##x)<<c_code.bits_##x) | |
1218 | #define ASSIGN_R(x) c_code.opcode |= (((x ? (x->regno & CODE_MASK) : 0) & c_code.mask_##x)<<c_code.bits_##x) | |
1219 | ||
1220 | #define HI(x) ((x >> 16) & 0xffff) | |
1221 | #define LO(x) ((x ) & 0xffff) | |
1222 | ||
1223 | #define GROUP(x) ((x->regno & CLASS_MASK) >> 4) | |
1224 | ||
1225 | #define GEN_OPCODE32() \ | |
1226 | conscode (gencode (HI (c_code.opcode)), \ | |
1227 | conscode (gencode (LO (c_code.opcode)), NULL_CODE)) | |
1228 | ||
1229 | #define GEN_OPCODE16() \ | |
1230 | conscode (gencode (c_code.opcode), NULL_CODE) | |
1231 | ||
1232 | ||
1233 | /* 32 BIT INSTRUCTIONS. */ | |
1234 | ||
1235 | ||
1236 | /* DSP32 instruction generation. */ | |
1237 | ||
1238 | INSTR_T | |
1239 | bfin_gen_dsp32mac (int op1, int MM, int mmod, int w1, int P, | |
1240 | int h01, int h11, int h00, int h10, int op0, | |
1241 | REG_T dst, REG_T src0, REG_T src1, int w0) | |
1242 | { | |
1243 | INIT (DSP32Mac); | |
1244 | ||
1245 | ASSIGN (op0); | |
1246 | ASSIGN (op1); | |
1247 | ASSIGN (MM); | |
1248 | ASSIGN (mmod); | |
1249 | ASSIGN (w0); | |
1250 | ASSIGN (w1); | |
1251 | ASSIGN (h01); | |
1252 | ASSIGN (h11); | |
1253 | ASSIGN (h00); | |
1254 | ASSIGN (h10); | |
1255 | ASSIGN (P); | |
1256 | ||
1257 | /* If we have full reg assignments, mask out LSB to encode | |
1258 | single or simultaneous even/odd register moves. */ | |
1259 | if (P) | |
1260 | { | |
1261 | dst->regno &= 0x06; | |
1262 | } | |
1263 | ||
1264 | ASSIGN_R (dst); | |
1265 | ASSIGN_R (src0); | |
1266 | ASSIGN_R (src1); | |
1267 | ||
1268 | return GEN_OPCODE32 (); | |
1269 | } | |
1270 | ||
1271 | INSTR_T | |
1272 | bfin_gen_dsp32mult (int op1, int MM, int mmod, int w1, int P, | |
1273 | int h01, int h11, int h00, int h10, int op0, | |
1274 | REG_T dst, REG_T src0, REG_T src1, int w0) | |
1275 | { | |
1276 | INIT (DSP32Mult); | |
1277 | ||
1278 | ASSIGN (op0); | |
1279 | ASSIGN (op1); | |
1280 | ASSIGN (MM); | |
1281 | ASSIGN (mmod); | |
1282 | ASSIGN (w0); | |
1283 | ASSIGN (w1); | |
1284 | ASSIGN (h01); | |
1285 | ASSIGN (h11); | |
1286 | ASSIGN (h00); | |
1287 | ASSIGN (h10); | |
1288 | ASSIGN (P); | |
1289 | ||
1290 | if (P) | |
1291 | { | |
1292 | dst->regno &= 0x06; | |
1293 | } | |
1294 | ||
1295 | ASSIGN_R (dst); | |
1296 | ASSIGN_R (src0); | |
1297 | ASSIGN_R (src1); | |
1298 | ||
1299 | return GEN_OPCODE32 (); | |
1300 | } | |
1301 | ||
1302 | INSTR_T | |
1303 | bfin_gen_dsp32alu (int HL, int aopcde, int aop, int s, int x, | |
1304 | REG_T dst0, REG_T dst1, REG_T src0, REG_T src1) | |
1305 | { | |
1306 | INIT (DSP32Alu); | |
1307 | ||
1308 | ASSIGN (HL); | |
1309 | ASSIGN (aopcde); | |
1310 | ASSIGN (aop); | |
1311 | ASSIGN (s); | |
1312 | ASSIGN (x); | |
1313 | ASSIGN_R (dst0); | |
1314 | ASSIGN_R (dst1); | |
1315 | ASSIGN_R (src0); | |
1316 | ASSIGN_R (src1); | |
1317 | ||
1318 | return GEN_OPCODE32 (); | |
1319 | } | |
1320 | ||
1321 | INSTR_T | |
1322 | bfin_gen_dsp32shift (int sopcde, REG_T dst0, REG_T src0, | |
1323 | REG_T src1, int sop, int HLs) | |
1324 | { | |
1325 | INIT (DSP32Shift); | |
1326 | ||
1327 | ASSIGN (sopcde); | |
1328 | ASSIGN (sop); | |
1329 | ASSIGN (HLs); | |
1330 | ||
1331 | ASSIGN_R (dst0); | |
1332 | ASSIGN_R (src0); | |
1333 | ASSIGN_R (src1); | |
1334 | ||
1335 | return GEN_OPCODE32 (); | |
1336 | } | |
1337 | ||
1338 | INSTR_T | |
1339 | bfin_gen_dsp32shiftimm (int sopcde, REG_T dst0, int immag, | |
1340 | REG_T src1, int sop, int HLs) | |
1341 | { | |
1342 | INIT (DSP32ShiftImm); | |
1343 | ||
1344 | ASSIGN (sopcde); | |
1345 | ASSIGN (sop); | |
1346 | ASSIGN (HLs); | |
1347 | ||
1348 | ASSIGN_R (dst0); | |
1349 | ASSIGN (immag); | |
1350 | ASSIGN_R (src1); | |
1351 | ||
1352 | return GEN_OPCODE32 (); | |
1353 | } | |
1354 | ||
1355 | /* LOOP SETUP. */ | |
1356 | ||
1357 | INSTR_T | |
1358 | bfin_gen_loopsetup (Expr_Node * psoffset, REG_T c, int rop, | |
1359 | Expr_Node * peoffset, REG_T reg) | |
1360 | { | |
1361 | int soffset, eoffset; | |
1362 | INIT (LoopSetup); | |
1363 | ||
1364 | soffset = (EXPR_VALUE (psoffset) >> 1); | |
1365 | ASSIGN (soffset); | |
1366 | eoffset = (EXPR_VALUE (peoffset) >> 1); | |
1367 | ASSIGN (eoffset); | |
1368 | ASSIGN (rop); | |
1369 | ASSIGN_R (c); | |
1370 | ASSIGN_R (reg); | |
1371 | ||
1372 | return | |
1373 | conscode (gencode (HI (c_code.opcode)), | |
1374 | conctcode (Expr_Node_Gen_Reloc (psoffset, BFD_RELOC_BFIN_5_PCREL), | |
1375 | conctcode (gencode (LO (c_code.opcode)), Expr_Node_Gen_Reloc (peoffset, BFD_RELOC_BFIN_11_PCREL)))); | |
1376 | ||
1377 | } | |
1378 | ||
1379 | /* Call, Link. */ | |
1380 | ||
1381 | INSTR_T | |
1382 | bfin_gen_calla (Expr_Node * addr, int S) | |
1383 | { | |
1384 | int val; | |
1385 | int high_val; | |
1386 | int reloc = 0; | |
1387 | INIT (CALLa); | |
1388 | ||
1389 | switch(S){ | |
1390 | case 0 : reloc = BFD_RELOC_BFIN_24_PCREL_JUMP_L; break; | |
1391 | case 1 : reloc = BFD_RELOC_24_PCREL; break; | |
1392 | case 2 : reloc = BFD_RELOC_BFIN_PLTPC; break; | |
1393 | default : break; | |
1394 | } | |
1395 | ||
1396 | ASSIGN (S); | |
1397 | ||
1398 | val = EXPR_VALUE (addr) >> 1; | |
1399 | high_val = val >> 16; | |
1400 | ||
1401 | return conscode (gencode (HI (c_code.opcode) | (high_val & 0xff)), | |
1402 | Expr_Node_Gen_Reloc (addr, reloc)); | |
1403 | } | |
1404 | ||
1405 | INSTR_T | |
1406 | bfin_gen_linkage (int R, int framesize) | |
1407 | { | |
1408 | INIT (Linkage); | |
1409 | ||
1410 | ASSIGN (R); | |
1411 | ASSIGN (framesize); | |
1412 | ||
1413 | return GEN_OPCODE32 (); | |
1414 | } | |
1415 | ||
1416 | ||
1417 | /* Load and Store. */ | |
1418 | ||
1419 | INSTR_T | |
1420 | bfin_gen_ldimmhalf (REG_T reg, int H, int S, int Z, Expr_Node * phword, int reloc) | |
1421 | { | |
1422 | int grp, hword; | |
1423 | unsigned val = EXPR_VALUE (phword); | |
1424 | INIT (LDIMMhalf); | |
1425 | ||
1426 | ASSIGN (H); | |
1427 | ASSIGN (S); | |
1428 | ASSIGN (Z); | |
1429 | ||
1430 | ASSIGN_R (reg); | |
1431 | grp = (GROUP (reg)); | |
1432 | ASSIGN (grp); | |
1433 | if (reloc == 2) | |
1434 | { | |
1435 | return conscode (gencode (HI (c_code.opcode)), Expr_Node_Gen_Reloc (phword, BFD_RELOC_BFIN_16_IMM)); | |
1436 | } | |
1437 | else if (reloc == 1) | |
1438 | { | |
1439 | return conscode (gencode (HI (c_code.opcode)), Expr_Node_Gen_Reloc (phword, IS_H (*reg) ? BFD_RELOC_BFIN_16_HIGH : BFD_RELOC_BFIN_16_LOW)); | |
1440 | } | |
1441 | else | |
1442 | { | |
1443 | hword = val; | |
1444 | ASSIGN (hword); | |
1445 | } | |
1446 | return GEN_OPCODE32 (); | |
1447 | } | |
1448 | ||
1449 | INSTR_T | |
1450 | bfin_gen_ldstidxi (REG_T ptr, REG_T reg, int W, int sz, int Z, Expr_Node * poffset) | |
1451 | { | |
07c1b327 CM |
1452 | INIT (LDSTidxI); |
1453 | ||
1454 | if (!IS_PREG (*ptr) || (!IS_DREG (*reg) && !Z)) | |
1455 | { | |
1456 | fprintf (stderr, "Warning: possible mixup of Preg/Dreg\n"); | |
1457 | return 0; | |
1458 | } | |
1459 | ||
1460 | ASSIGN_R (ptr); | |
1461 | ASSIGN_R (reg); | |
1462 | ASSIGN (W); | |
1463 | ASSIGN (sz); | |
07c1b327 CM |
1464 | |
1465 | ASSIGN (Z); | |
1466 | ||
1ac4baed BS |
1467 | if (poffset->type != Expr_Node_Constant) |
1468 | { | |
1469 | /* a GOT relocation such as R0 = [P5 + symbol@GOT] */ | |
1470 | /* distinguish between R0 = [P5 + symbol@GOT] and | |
1471 | P5 = [P5 + _current_shared_library_p5_offset_] | |
1472 | */ | |
1473 | if (poffset->type == Expr_Node_Reloc | |
1474 | && !strcmp (poffset->value.s_value, | |
1475 | "_current_shared_library_p5_offset_")) | |
1476 | { | |
1477 | return conscode (gencode (HI (c_code.opcode)), | |
1478 | Expr_Node_Gen_Reloc(poffset, BFD_RELOC_16)); | |
1479 | } | |
1480 | else if (poffset->type != Expr_Node_GOT_Reloc) | |
1481 | abort (); | |
1482 | ||
1483 | return conscode (gencode (HI (c_code.opcode)), | |
1484 | Expr_Node_Gen_Reloc(poffset->Left_Child, | |
1485 | poffset->value.i_value)); | |
07c1b327 | 1486 | } |
1ac4baed | 1487 | else |
07c1b327 | 1488 | { |
1ac4baed BS |
1489 | int value, offset; |
1490 | switch (sz) | |
1491 | { // load/store access size | |
1492 | case 0: // 32 bit | |
1493 | value = EXPR_VALUE (poffset) >> 2; | |
1494 | break; | |
1495 | case 1: // 16 bit | |
1496 | value = EXPR_VALUE (poffset) >> 1; | |
1497 | break; | |
1498 | case 2: // 8 bit | |
1499 | value = EXPR_VALUE (poffset); | |
1500 | break; | |
1501 | default: | |
1502 | abort (); | |
1503 | } | |
1504 | ||
1505 | offset = (value & 0xffff); | |
1506 | ASSIGN (offset); | |
1507 | return GEN_OPCODE32 (); | |
07c1b327 | 1508 | } |
07c1b327 CM |
1509 | } |
1510 | ||
1511 | ||
1512 | INSTR_T | |
1513 | bfin_gen_ldst (REG_T ptr, REG_T reg, int aop, int sz, int Z, int W) | |
1514 | { | |
1515 | INIT (LDST); | |
1516 | ||
1517 | if (!IS_PREG (*ptr) || (!IS_DREG (*reg) && !Z)) | |
1518 | { | |
1519 | fprintf (stderr, "Warning: possible mixup of Preg/Dreg\n"); | |
1520 | return 0; | |
1521 | } | |
1522 | ||
1523 | ASSIGN_R (ptr); | |
1524 | ASSIGN_R (reg); | |
1525 | ASSIGN (aop); | |
1526 | ASSIGN (sz); | |
1527 | ASSIGN (Z); | |
1528 | ASSIGN (W); | |
1529 | ||
1530 | return GEN_OPCODE16 (); | |
1531 | } | |
1532 | ||
1533 | INSTR_T | |
1534 | bfin_gen_ldstii (REG_T ptr, REG_T reg, Expr_Node * poffset, int W, int op) | |
1535 | { | |
1536 | int offset; | |
1537 | int value = 0; | |
1538 | INIT (LDSTii); | |
1539 | ||
1540 | ||
1541 | if (!IS_PREG (*ptr)) | |
1542 | { | |
1543 | fprintf (stderr, "Warning: possible mixup of Preg/Dreg\n"); | |
1544 | return 0; | |
1545 | } | |
1546 | ||
1547 | switch (op) | |
1548 | { | |
1549 | case 1: | |
1550 | case 2: | |
1551 | value = EXPR_VALUE (poffset) >> 1; | |
1552 | break; | |
1553 | case 0: | |
1554 | case 3: | |
1555 | value = EXPR_VALUE (poffset) >> 2; | |
1556 | break; | |
1557 | } | |
1558 | ||
1559 | ASSIGN_R (ptr); | |
1560 | ASSIGN_R (reg); | |
1561 | ||
1562 | offset = value; | |
1563 | ASSIGN (offset); | |
1564 | ASSIGN (W); | |
1565 | ASSIGN (op); | |
1566 | ||
1567 | return GEN_OPCODE16 (); | |
1568 | } | |
1569 | ||
1570 | INSTR_T | |
1571 | bfin_gen_ldstiifp (REG_T sreg, Expr_Node * poffset, int W) | |
1572 | { | |
1573 | /* Set bit 4 if it's a Preg. */ | |
1574 | int reg = (sreg->regno & CODE_MASK) | (IS_PREG (*sreg) ? 0x8 : 0x0); | |
1575 | int offset = ((~(EXPR_VALUE (poffset) >> 2)) & 0x1f) + 1; | |
1576 | INIT (LDSTiiFP); | |
1577 | ASSIGN (reg); | |
1578 | ASSIGN (offset); | |
1579 | ASSIGN (W); | |
1580 | ||
1581 | return GEN_OPCODE16 (); | |
1582 | } | |
1583 | ||
1584 | INSTR_T | |
1585 | bfin_gen_ldstpmod (REG_T ptr, REG_T reg, int aop, int W, REG_T idx) | |
1586 | { | |
1587 | INIT (LDSTpmod); | |
1588 | ||
1589 | ASSIGN_R (ptr); | |
1590 | ASSIGN_R (reg); | |
1591 | ASSIGN (aop); | |
1592 | ASSIGN (W); | |
1593 | ASSIGN_R (idx); | |
1594 | ||
1595 | return GEN_OPCODE16 (); | |
1596 | } | |
1597 | ||
1598 | INSTR_T | |
1599 | bfin_gen_dspldst (REG_T i, REG_T reg, int aop, int W, int m) | |
1600 | { | |
1601 | INIT (DspLDST); | |
1602 | ||
1603 | ASSIGN_R (i); | |
1604 | ASSIGN_R (reg); | |
1605 | ASSIGN (aop); | |
1606 | ASSIGN (W); | |
1607 | ASSIGN (m); | |
1608 | ||
1609 | return GEN_OPCODE16 (); | |
1610 | } | |
1611 | ||
1612 | INSTR_T | |
1613 | bfin_gen_logi2op (int opc, int src, int dst) | |
1614 | { | |
1615 | INIT (LOGI2op); | |
1616 | ||
1617 | ASSIGN (opc); | |
1618 | ASSIGN (src); | |
1619 | ASSIGN (dst); | |
1620 | ||
1621 | return GEN_OPCODE16 (); | |
1622 | } | |
1623 | ||
1624 | INSTR_T | |
1625 | bfin_gen_brcc (int T, int B, Expr_Node * poffset) | |
1626 | { | |
1627 | int offset; | |
1628 | INIT (BRCC); | |
1629 | ||
1630 | ASSIGN (T); | |
1631 | ASSIGN (B); | |
1632 | offset = ((EXPR_VALUE (poffset) >> 1)); | |
1633 | ASSIGN (offset); | |
1634 | return conscode (gencode (c_code.opcode), Expr_Node_Gen_Reloc (poffset, BFD_RELOC_BFIN_10_PCREL)); | |
1635 | } | |
1636 | ||
1637 | INSTR_T | |
1638 | bfin_gen_ujump (Expr_Node * poffset) | |
1639 | { | |
1640 | int offset; | |
1641 | INIT (UJump); | |
1642 | ||
1643 | offset = ((EXPR_VALUE (poffset) >> 1)); | |
1644 | ASSIGN (offset); | |
1645 | ||
1646 | return conscode (gencode (c_code.opcode), | |
1647 | Expr_Node_Gen_Reloc ( | |
1648 | poffset, BFD_RELOC_BFIN_12_PCREL_JUMP_S)); | |
1649 | } | |
1650 | ||
1651 | INSTR_T | |
1652 | bfin_gen_alu2op (REG_T dst, REG_T src, int opc) | |
1653 | { | |
1654 | INIT (ALU2op); | |
1655 | ||
1656 | ASSIGN_R (dst); | |
1657 | ASSIGN_R (src); | |
1658 | ASSIGN (opc); | |
1659 | ||
1660 | return GEN_OPCODE16 (); | |
1661 | } | |
1662 | ||
1663 | INSTR_T | |
1664 | bfin_gen_compi2opd (REG_T dst, int src, int op) | |
1665 | { | |
1666 | INIT (COMPI2opD); | |
1667 | ||
1668 | ASSIGN_R (dst); | |
1669 | ASSIGN (src); | |
1670 | ASSIGN (op); | |
1671 | ||
1672 | return GEN_OPCODE16 (); | |
1673 | } | |
1674 | ||
1675 | INSTR_T | |
1676 | bfin_gen_compi2opp (REG_T dst, int src, int op) | |
1677 | { | |
1678 | INIT (COMPI2opP); | |
1679 | ||
1680 | ASSIGN_R (dst); | |
1681 | ASSIGN (src); | |
1682 | ASSIGN (op); | |
1683 | ||
1684 | return GEN_OPCODE16 (); | |
1685 | } | |
1686 | ||
1687 | INSTR_T | |
1688 | bfin_gen_dagmodik (REG_T i, int op) | |
1689 | { | |
1690 | INIT (DagMODik); | |
1691 | ||
1692 | ASSIGN_R (i); | |
1693 | ASSIGN (op); | |
1694 | ||
1695 | return GEN_OPCODE16 (); | |
1696 | } | |
1697 | ||
1698 | INSTR_T | |
1699 | bfin_gen_dagmodim (REG_T i, REG_T m, int op, int br) | |
1700 | { | |
1701 | INIT (DagMODim); | |
1702 | ||
1703 | ASSIGN_R (i); | |
1704 | ASSIGN_R (m); | |
1705 | ASSIGN (op); | |
1706 | ASSIGN (br); | |
1707 | ||
1708 | return GEN_OPCODE16 (); | |
1709 | } | |
1710 | ||
1711 | INSTR_T | |
1712 | bfin_gen_ptr2op (REG_T dst, REG_T src, int opc) | |
1713 | { | |
1714 | INIT (PTR2op); | |
1715 | ||
1716 | ASSIGN_R (dst); | |
1717 | ASSIGN_R (src); | |
1718 | ASSIGN (opc); | |
1719 | ||
1720 | return GEN_OPCODE16 (); | |
1721 | } | |
1722 | ||
1723 | INSTR_T | |
1724 | bfin_gen_comp3op (REG_T src0, REG_T src1, REG_T dst, int opc) | |
1725 | { | |
1726 | INIT (COMP3op); | |
1727 | ||
1728 | ASSIGN_R (src0); | |
1729 | ASSIGN_R (src1); | |
1730 | ASSIGN_R (dst); | |
1731 | ASSIGN (opc); | |
1732 | ||
1733 | return GEN_OPCODE16 (); | |
1734 | } | |
1735 | ||
1736 | INSTR_T | |
1737 | bfin_gen_ccflag (REG_T x, int y, int opc, int I, int G) | |
1738 | { | |
1739 | INIT (CCflag); | |
1740 | ||
1741 | ASSIGN_R (x); | |
1742 | ASSIGN (y); | |
1743 | ASSIGN (opc); | |
1744 | ASSIGN (I); | |
1745 | ASSIGN (G); | |
1746 | ||
1747 | return GEN_OPCODE16 (); | |
1748 | } | |
1749 | ||
1750 | INSTR_T | |
1751 | bfin_gen_ccmv (REG_T src, REG_T dst, int T) | |
1752 | { | |
1753 | int s, d; | |
1754 | INIT (CCmv); | |
1755 | ||
1756 | ASSIGN_R (src); | |
1757 | ASSIGN_R (dst); | |
1758 | s = (GROUP (src)); | |
1759 | ASSIGN (s); | |
1760 | d = (GROUP (dst)); | |
1761 | ASSIGN (d); | |
1762 | ASSIGN (T); | |
1763 | ||
1764 | return GEN_OPCODE16 (); | |
1765 | } | |
1766 | ||
1767 | INSTR_T | |
1768 | bfin_gen_cc2stat (int cbit, int op, int D) | |
1769 | { | |
1770 | INIT (CC2stat); | |
1771 | ||
1772 | ASSIGN (cbit); | |
1773 | ASSIGN (op); | |
1774 | ASSIGN (D); | |
1775 | ||
1776 | return GEN_OPCODE16 (); | |
1777 | } | |
1778 | ||
1779 | INSTR_T | |
1780 | bfin_gen_regmv (REG_T src, REG_T dst) | |
1781 | { | |
1782 | int gs, gd; | |
1783 | INIT (RegMv); | |
1784 | ||
1785 | ASSIGN_R (src); | |
1786 | ASSIGN_R (dst); | |
1787 | ||
1788 | gs = (GROUP (src)); | |
1789 | ASSIGN (gs); | |
1790 | gd = (GROUP (dst)); | |
1791 | ASSIGN (gd); | |
1792 | ||
1793 | return GEN_OPCODE16 (); | |
1794 | } | |
1795 | ||
1796 | INSTR_T | |
1797 | bfin_gen_cc2dreg (int op, REG_T reg) | |
1798 | { | |
1799 | INIT (CC2dreg); | |
1800 | ||
1801 | ASSIGN (op); | |
1802 | ASSIGN_R (reg); | |
1803 | ||
1804 | return GEN_OPCODE16 (); | |
1805 | } | |
1806 | ||
1807 | INSTR_T | |
1808 | bfin_gen_progctrl (int prgfunc, int poprnd) | |
1809 | { | |
1810 | INIT (ProgCtrl); | |
1811 | ||
1812 | ASSIGN (prgfunc); | |
1813 | ASSIGN (poprnd); | |
1814 | ||
1815 | return GEN_OPCODE16 (); | |
1816 | } | |
1817 | ||
1818 | INSTR_T | |
1819 | bfin_gen_cactrl (REG_T reg, int a, int op) | |
1820 | { | |
1821 | INIT (CaCTRL); | |
1822 | ||
1823 | ASSIGN_R (reg); | |
1824 | ASSIGN (a); | |
1825 | ASSIGN (op); | |
1826 | ||
1827 | return GEN_OPCODE16 (); | |
1828 | } | |
1829 | ||
1830 | INSTR_T | |
1831 | bfin_gen_pushpopmultiple (int dr, int pr, int d, int p, int W) | |
1832 | { | |
1833 | INIT (PushPopMultiple); | |
1834 | ||
1835 | ASSIGN (dr); | |
1836 | ASSIGN (pr); | |
1837 | ASSIGN (d); | |
1838 | ASSIGN (p); | |
1839 | ASSIGN (W); | |
1840 | ||
1841 | return GEN_OPCODE16 (); | |
1842 | } | |
1843 | ||
1844 | INSTR_T | |
1845 | bfin_gen_pushpopreg (REG_T reg, int W) | |
1846 | { | |
1847 | int grp; | |
1848 | INIT (PushPopReg); | |
1849 | ||
1850 | ASSIGN_R (reg); | |
1851 | grp = (GROUP (reg)); | |
1852 | ASSIGN (grp); | |
1853 | ASSIGN (W); | |
1854 | ||
1855 | return GEN_OPCODE16 (); | |
1856 | } | |
1857 | ||
1858 | /* Pseudo Debugging Support. */ | |
1859 | ||
1860 | INSTR_T | |
1861 | bfin_gen_pseudodbg (int fn, int reg, int grp) | |
1862 | { | |
1863 | INIT (PseudoDbg); | |
1864 | ||
1865 | ASSIGN (fn); | |
1866 | ASSIGN (reg); | |
1867 | ASSIGN (grp); | |
1868 | ||
1869 | return GEN_OPCODE16 (); | |
1870 | } | |
1871 | ||
1872 | INSTR_T | |
1873 | bfin_gen_pseudodbg_assert (int dbgop, REG_T regtest, int expected) | |
1874 | { | |
1875 | INIT (PseudoDbg_Assert); | |
1876 | ||
1877 | ASSIGN (dbgop); | |
1878 | ASSIGN_R (regtest); | |
1879 | ASSIGN (expected); | |
1880 | ||
1881 | return GEN_OPCODE32 (); | |
1882 | } | |
1883 | ||
1884 | /* Multiple instruction generation. */ | |
1885 | ||
1886 | INSTR_T | |
1887 | bfin_gen_multi_instr (INSTR_T dsp32, INSTR_T dsp16_grp1, INSTR_T dsp16_grp2) | |
1888 | { | |
1889 | INSTR_T walk; | |
1890 | ||
1891 | /* If it's a 0, convert into MNOP. */ | |
1892 | if (dsp32) | |
1893 | { | |
1894 | walk = dsp32->next; | |
1895 | SET_MULTI_INSTRUCTION_BIT (dsp32); | |
1896 | } | |
1897 | else | |
1898 | { | |
1899 | dsp32 = gencode (0xc803); | |
1900 | walk = gencode (0x1800); | |
1901 | dsp32->next = walk; | |
1902 | } | |
1903 | ||
1904 | if (!dsp16_grp1) | |
1905 | { | |
1906 | dsp16_grp1 = gencode (0x0000); | |
1907 | } | |
1908 | ||
1909 | if (!dsp16_grp2) | |
1910 | { | |
1911 | dsp16_grp2 = gencode (0x0000); | |
1912 | } | |
1913 | ||
1914 | walk->next = dsp16_grp1; | |
1915 | dsp16_grp1->next = dsp16_grp2; | |
1916 | dsp16_grp2->next = NULL_CODE; | |
1917 | ||
1918 | return dsp32; | |
1919 | } | |
1920 | ||
1921 | INSTR_T | |
1922 | bfin_gen_loop (Expr_Node *expr, REG_T reg, int rop, REG_T preg) | |
1923 | { | |
1924 | const char *loopsym; | |
1925 | char *lbeginsym, *lendsym; | |
1926 | Expr_Node_Value lbeginval, lendval; | |
1927 | Expr_Node *lbegin, *lend; | |
1928 | ||
1929 | loopsym = expr->value.s_value; | |
1930 | lbeginsym = (char *) xmalloc (strlen (loopsym) + strlen ("__BEGIN") + 1); | |
1931 | lendsym = (char *) xmalloc (strlen (loopsym) + strlen ("__END") + 1); | |
1932 | ||
1933 | lbeginsym[0] = 0; | |
1934 | lendsym[0] = 0; | |
1935 | ||
1936 | strcat (lbeginsym, loopsym); | |
1937 | strcat (lbeginsym, "__BEGIN"); | |
1938 | ||
1939 | strcat (lendsym, loopsym); | |
1940 | strcat (lendsym, "__END"); | |
1941 | ||
1942 | lbeginval.s_value = lbeginsym; | |
1943 | lendval.s_value = lendsym; | |
1944 | ||
1945 | lbegin = Expr_Node_Create (Expr_Node_Reloc, lbeginval, NULL, NULL); | |
1946 | lend = Expr_Node_Create (Expr_Node_Reloc, lendval, NULL, NULL); | |
1947 | return bfin_gen_loopsetup(lbegin, reg, rop, lend, preg); | |
1948 | } | |
1949 | ||
1950 | bfd_boolean | |
1951 | bfin_eol_in_insn (char *line) | |
1952 | { | |
1953 | /* Allow a new-line to appear in the middle of a multi-issue instruction. */ | |
1954 | ||
1955 | char *temp = line; | |
1956 | ||
1957 | if (*line != '\n') | |
1958 | return FALSE; | |
1959 | ||
1960 | /* A semi-colon followed by a newline is always the end of a line. */ | |
1961 | if (line[-1] == ';') | |
1962 | return FALSE; | |
1963 | ||
1964 | if (line[-1] == '|') | |
1965 | return TRUE; | |
1966 | ||
1967 | /* If the || is on the next line, there might be leading whitespace. */ | |
1968 | temp++; | |
1969 | while (*temp == ' ' || *temp == '\t') temp++; | |
1970 | ||
1971 | if (*temp == '|') | |
1972 | return TRUE; | |
1973 | ||
1974 | return FALSE; | |
1975 | } | |
1976 | ||
07c1b327 CM |
1977 | bfd_boolean |
1978 | bfin_start_label (char *ptr) | |
1979 | { | |
1980 | ptr--; | |
1981 | while (!ISSPACE (*ptr) && !is_end_of_line[(unsigned char) *ptr]) | |
1982 | ptr--; | |
1983 | ||
1984 | ptr++; | |
1985 | if (*ptr == '(' || *ptr == '[') | |
1986 | return FALSE; | |
1987 | ||
07c1b327 CM |
1988 | return TRUE; |
1989 | } | |
1990 | ||
1991 | int | |
1992 | bfin_force_relocation (struct fix *fixp) | |
1993 | { | |
1994 | if (fixp->fx_r_type ==BFD_RELOC_BFIN_16_LOW | |
1995 | || fixp->fx_r_type == BFD_RELOC_BFIN_16_HIGH) | |
1996 | return TRUE; | |
1997 | ||
1998 | return generic_force_reloc (fixp); | |
1999 | } |