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[deliverable/binutils-gdb.git] / sim / igen / igen.c
1 /* The IGEN simulator generator for GDB, the GNU Debugger.
2
3 Copyright 2002-2021 Free Software Foundation, Inc.
4
5 Contributed by Andrew Cagney.
6
7 This file is part of GDB.
8
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 3 of the License, or
12 (at your option) any later version.
13
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.
18
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21
22 #include <getopt.h>
23 #include <stdlib.h>
24
25 #include "misc.h"
26 #include "lf.h"
27 #include "table.h"
28 #include "filter.h"
29
30 #include "igen.h"
31
32 #include "ld-insn.h"
33 #include "ld-decode.h"
34 #include "ld-cache.h"
35
36 #include "gen.h"
37
38 #include "gen-model.h"
39 #include "gen-icache.h"
40 #include "gen-itable.h"
41 #include "gen-idecode.h"
42 #include "gen-semantics.h"
43 #include "gen-engine.h"
44 #include "gen-support.h"
45 #include "gen-engine.h"
46
47
48 /****************************************************************/
49
50
51 /* Semantic functions */
52
53 int
54 print_semantic_function_formal (lf *file, int nr_prefetched_words)
55 {
56 int nr = 0;
57 int word_nr;
58 if (options.gen.icache || nr_prefetched_words < 0)
59 {
60 nr += lf_printf (file, "SIM_DESC sd,\n");
61 nr += lf_printf (file, "%sidecode_cache *cache_entry,\n",
62 options.module.global.prefix.l);
63 nr += lf_printf (file, "%sinstruction_address cia",
64 options.module.global.prefix.l);
65 }
66 else if (options.gen.smp)
67 {
68 nr += lf_printf (file, "sim_cpu *cpu,\n");
69 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
70 {
71 nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
72 options.module.global.prefix.l, word_nr);
73 }
74 nr += lf_printf (file, "%sinstruction_address cia",
75 options.module.global.prefix.l);
76 }
77 else
78 {
79 nr += lf_printf (file, "SIM_DESC sd,\n");
80 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
81 {
82 nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
83 options.module.global.prefix.l, word_nr);
84 }
85 nr += lf_printf (file, "%sinstruction_address cia",
86 options.module.global.prefix.l);
87 }
88 return nr;
89 }
90
91 int
92 print_semantic_function_actual (lf *file, int nr_prefetched_words)
93 {
94 int nr = 0;
95 int word_nr;
96 if (options.gen.icache || nr_prefetched_words < 0)
97 {
98 nr += lf_printf (file, "sd, cache_entry, cia");
99 }
100 else
101 {
102 if (options.gen.smp)
103 nr += lf_printf (file, "cpu");
104 else
105 nr += lf_printf (file, "sd");
106 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
107 nr += lf_printf (file, ", instruction_%d", word_nr);
108 nr += lf_printf (file, ", cia");
109 }
110 return nr;
111 }
112
113 int
114 print_semantic_function_type (lf *file)
115 {
116 int nr = 0;
117 nr += lf_printf (file, "%sinstruction_address",
118 options.module.global.prefix.l);
119 return nr;
120 }
121
122
123 /* Idecode functions */
124
125 int
126 print_icache_function_formal (lf *file, int nr_prefetched_words)
127 {
128 int nr = 0;
129 int word_nr;
130 if (options.gen.smp)
131 nr += lf_printf (file, "sim_cpu *cpu,\n");
132 else
133 nr += lf_printf (file, "SIM_DESC sd,\n");
134 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
135 nr += lf_printf (file, " %sinstruction_word instruction_%d,\n",
136 options.module.global.prefix.l, word_nr);
137 nr += lf_printf (file, " %sinstruction_address cia,\n",
138 options.module.global.prefix.l);
139 nr += lf_printf (file, " %sidecode_cache *cache_entry",
140 options.module.global.prefix.l);
141 return nr;
142 }
143
144 int
145 print_icache_function_actual (lf *file, int nr_prefetched_words)
146 {
147 int nr = 0;
148 int word_nr;
149 if (options.gen.smp)
150 nr += lf_printf (file, "cpu");
151 else
152 nr += lf_printf (file, "sd");
153 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
154 nr += lf_printf (file, ", instruction_%d", word_nr);
155 nr += lf_printf (file, ", cia, cache_entry");
156 return nr;
157 }
158
159 int
160 print_icache_function_type (lf *file)
161 {
162 int nr;
163 if (options.gen.semantic_icache)
164 {
165 nr = print_semantic_function_type (file);
166 }
167 else
168 {
169 nr = lf_printf (file, "%sidecode_semantic *",
170 options.module.global.prefix.l);
171 }
172 return nr;
173 }
174
175
176 /* Function names */
177
178 static int
179 print_opcode_bits (lf *file, opcode_bits *bits)
180 {
181 int nr = 0;
182 if (bits == NULL)
183 return nr;
184 nr += lf_putchr (file, '_');
185 nr += lf_putstr (file, bits->field->val_string);
186 if (bits->opcode->is_boolean && bits->value == 0)
187 nr += lf_putint (file, bits->opcode->boolean_constant);
188 else if (!bits->opcode->is_boolean)
189 {
190 if (bits->opcode->last < bits->field->last)
191 nr +=
192 lf_putint (file,
193 bits->value << (bits->field->last - bits->opcode->last));
194 else
195 nr += lf_putint (file, bits->value);
196 }
197 nr += print_opcode_bits (file, bits->next);
198 return nr;
199 }
200
201 static int
202 print_c_name (lf *file, const char *name)
203 {
204 int nr = 0;
205 const char *pos;
206 for (pos = name; *pos != '\0'; pos++)
207 {
208 switch (*pos)
209 {
210 case '/':
211 case '-':
212 break;
213 case ' ':
214 case '.':
215 nr += lf_putchr (file, '_');
216 break;
217 default:
218 nr += lf_putchr (file, *pos);
219 break;
220 }
221 }
222 return nr;
223 }
224
225 extern int
226 print_function_name (lf *file,
227 const char *basename,
228 const char *format_name,
229 const char *model_name,
230 opcode_bits *expanded_bits,
231 lf_function_name_prefixes prefix)
232 {
233 int nr = 0;
234 /* the prefix */
235 switch (prefix)
236 {
237 case function_name_prefix_semantics:
238 nr += lf_printf (file, "%s", options.module.semantics.prefix.l);
239 nr += lf_printf (file, "semantic_");
240 break;
241 case function_name_prefix_idecode:
242 nr += lf_printf (file, "%s", options.module.idecode.prefix.l);
243 nr += lf_printf (file, "idecode_");
244 break;
245 case function_name_prefix_itable:
246 nr += lf_printf (file, "%sitable_", options.module.itable.prefix.l);
247 break;
248 case function_name_prefix_icache:
249 nr += lf_printf (file, "%s", options.module.icache.prefix.l);
250 nr += lf_printf (file, "icache_");
251 break;
252 case function_name_prefix_engine:
253 nr += lf_printf (file, "%s", options.module.engine.prefix.l);
254 nr += lf_printf (file, "engine_");
255 default:
256 break;
257 }
258
259 if (model_name != NULL)
260 {
261 nr += print_c_name (file, model_name);
262 nr += lf_printf (file, "_");
263 }
264
265 /* the function name */
266 nr += print_c_name (file, basename);
267
268 /* the format name if available */
269 if (format_name != NULL)
270 {
271 nr += lf_printf (file, "_");
272 nr += print_c_name (file, format_name);
273 }
274
275 /* the suffix */
276 nr += print_opcode_bits (file, expanded_bits);
277
278 return nr;
279 }
280
281
282 void
283 print_my_defines (lf *file,
284 const char *basename,
285 const char *format_name, opcode_bits *expanded_bits)
286 {
287 /* #define MY_INDEX xxxxx */
288 lf_indent_suppress (file);
289 lf_printf (file, "#undef MY_INDEX\n");
290 lf_indent_suppress (file);
291 lf_printf (file, "#define MY_INDEX ");
292 print_function_name (file,
293 basename, format_name, NULL,
294 NULL, function_name_prefix_itable);
295 lf_printf (file, "\n");
296 /* #define MY_PREFIX xxxxxx */
297 lf_indent_suppress (file);
298 lf_printf (file, "#undef ");
299 print_function_name (file,
300 basename, format_name, NULL,
301 expanded_bits, function_name_prefix_none);
302 lf_printf (file, "\n");
303 lf_indent_suppress (file);
304 lf_printf (file, "#undef MY_PREFIX\n");
305 lf_indent_suppress (file);
306 lf_printf (file, "#define MY_PREFIX ");
307 print_function_name (file,
308 basename, format_name, NULL,
309 expanded_bits, function_name_prefix_none);
310 lf_printf (file, "\n");
311 /* #define MY_NAME xxxxxx */
312 lf_indent_suppress (file);
313 lf_indent_suppress (file);
314 lf_printf (file, "#undef MY_NAME\n");
315 lf_indent_suppress (file);
316 lf_printf (file, "#define MY_NAME \"");
317 print_function_name (file,
318 basename, format_name, NULL,
319 expanded_bits, function_name_prefix_none);
320 lf_printf (file, "\"\n");
321 }
322
323
324 static int
325 print_itrace_prefix (lf *file)
326 {
327 const char *prefix = "trace_prefix (";
328 int indent = strlen (prefix);
329 lf_printf (file, "%sSD, CPU, cia, CIA, TRACE_LINENUM_P (CPU), \\\n",
330 prefix);
331 lf_indent (file, +indent);
332 lf_printf (file, "%sitable[MY_INDEX].file, \\\n",
333 options.module.itable.prefix.l);
334 lf_printf (file, "%sitable[MY_INDEX].line_nr, \\\n",
335 options.module.itable.prefix.l);
336 lf_printf (file, "\"");
337 return indent;
338 }
339
340
341 static void
342 print_itrace_format (lf *file, insn_mnemonic_entry *assembler)
343 {
344 /* pass=1 is fmt string; pass=2 is arguments */
345 int pass;
346 /* print the format string */
347 for (pass = 1; pass <= 2; pass++)
348 {
349 const char *chp = assembler->format;
350 chp++; /* skip the leading quote */
351 /* write out the format/args */
352 while (*chp != '\0')
353 {
354 if (chp[0] == '\\' && (chp[1] == '<' || chp[1] == '>'))
355 {
356 if (pass == 1)
357 lf_putchr (file, chp[1]);
358 chp += 2;
359 }
360 else if (chp[0] == '<' || chp[0] == '%')
361 {
362 /* parse [ "%" ... ] "<" [ func "#" ] param ">" */
363 const char *fmt;
364 const char *func;
365 int strlen_func;
366 const char *param;
367 int strlen_param;
368 /* the "%" ... "<" format */
369 fmt = chp;
370 while (chp[0] != '<' && chp[0] != '\0')
371 chp++;
372 if (chp[0] != '<')
373 error (assembler->line, "Missing `<' after `%%'\n");
374 chp++;
375 /* [ "func" # ] OR "param" */
376 func = chp;
377 param = chp;
378 while (chp[0] != '>' && chp[0] != '#' && chp[0] != '\0')
379 chp++;
380 strlen_func = chp - func;
381 if (chp[0] == '#')
382 {
383 chp++;
384 param = chp;
385 while (chp[0] != '>' && chp[0] != '\0')
386 chp++;
387 }
388 strlen_param = chp - param;
389 if (chp[0] != '>')
390 error (assembler->line,
391 "Missing closing `>' in assembler string\n");
392 chp++;
393 /* now process it */
394 if (pass == 2)
395 lf_printf (file, ", \\\n");
396 if (strncmp (fmt, "<", 1) == 0)
397 /* implicit long int format */
398 {
399 if (pass == 1)
400 lf_printf (file, "%%ld");
401 else
402 {
403 lf_printf (file, "(long) ");
404 lf_write (file, param, strlen_param);
405 }
406 }
407 else if (strncmp (fmt, "%<", 2) == 0)
408 /* explicit format */
409 {
410 if (pass == 1)
411 lf_printf (file, "%%");
412 else
413 lf_write (file, param, strlen_param);
414 }
415 else if (strncmp (fmt, "%s<", 3) == 0)
416 /* string format */
417 {
418 if (pass == 1)
419 lf_printf (file, "%%s");
420 else
421 {
422 lf_printf (file, "%sstr_",
423 options.module.global.prefix.l);
424 lf_write (file, func, strlen_func);
425 lf_printf (file, " (SD_, ");
426 lf_write (file, param, strlen_param);
427 lf_printf (file, ")");
428 }
429 }
430 else if (strncmp (fmt, "%lx<", 4) == 0)
431 /* simple hex */
432 {
433 if (pass == 1)
434 lf_printf (file, "%%lx");
435 else
436 {
437 lf_printf (file, "(unsigned long) ");
438 lf_write (file, param, strlen_param);
439 }
440 }
441 else if (strncmp (fmt, "%#lx<", 5) == 0)
442 /* simple hex with 0x prefix */
443 {
444 if (pass == 1)
445 lf_printf (file, "%%#lx");
446 else
447 {
448 lf_printf (file, "(unsigned long) ");
449 lf_write (file, param, strlen_param);
450 }
451 }
452 else if (strncmp (fmt, "%08lx<", 6) == 0)
453 /* simple hex */
454 {
455 if (pass == 1)
456 lf_printf (file, "%%08lx");
457 else
458 {
459 lf_printf (file, "(unsigned long) ");
460 lf_write (file, param, strlen_param);
461 }
462 }
463 else
464 error (assembler->line, "Unknown assembler string format\n");
465 }
466 else
467 {
468 if (pass == 1)
469 lf_putchr (file, chp[0]);
470 chp += 1;
471 }
472 }
473 }
474 lf_printf (file, ");\n");
475 }
476
477
478 void
479 print_itrace (lf *file, insn_entry * insn, int idecode)
480 {
481 /* NB: Here we escape each EOLN. This is so that the the compiler
482 treats a trace function call as a single line. Consequently any
483 errors in the line are refered back to the same igen assembler
484 source line */
485 const char *phase = (idecode) ? "DECODE" : "INSN";
486 lf_printf (file, "\n");
487 lf_indent_suppress (file);
488 lf_printf (file, "#if defined (WITH_TRACE)\n");
489 lf_printf (file, "/* generate a trace prefix if any tracing enabled */\n");
490 lf_printf (file, "if (TRACE_ANY_P (CPU))\n");
491 lf_printf (file, " {\n");
492 lf_indent (file, +4);
493 {
494 if (insn->mnemonics != NULL)
495 {
496 insn_mnemonic_entry *assembler = insn->mnemonics;
497 int is_first = 1;
498 do
499 {
500 if (assembler->condition != NULL)
501 {
502 int indent;
503 lf_printf (file, "%sif (%s)\n",
504 is_first ? "" : "else ", assembler->condition);
505 lf_indent (file, +2);
506 lf_print__line_ref (file, assembler->line);
507 indent = print_itrace_prefix (file);
508 print_itrace_format (file, assembler);
509 lf_print__internal_ref (file);
510 lf_indent (file, -indent);
511 lf_indent (file, -2);
512 if (assembler->next == NULL)
513 error (assembler->line,
514 "Missing final unconditional assembler\n");
515 }
516 else
517 {
518 int indent;
519 if (!is_first)
520 {
521 lf_printf (file, "else\n");
522 lf_indent (file, +2);
523 }
524 lf_print__line_ref (file, assembler->line);
525 indent = print_itrace_prefix (file);
526 print_itrace_format (file, assembler);
527 lf_print__internal_ref (file);
528 lf_indent (file, -indent);
529 if (!is_first)
530 lf_indent (file, -2);
531 if (assembler->next != NULL)
532 error (assembler->line,
533 "Unconditional assembler is not last\n");
534 }
535 is_first = 0;
536 assembler = assembler->next;
537 }
538 while (assembler != NULL);
539 }
540 else
541 {
542 int indent;
543 lf_indent (file, +2);
544 lf_print__line_ref (file, insn->line);
545 indent = print_itrace_prefix (file);
546 lf_printf (file, "%%s\", \\\n");
547 lf_printf (file, "itable[MY_INDEX].name);\n");
548 lf_print__internal_ref (file);
549 lf_indent (file, -indent);
550 lf_indent (file, -2);
551 }
552 lf_printf (file, "/* trace the instruction execution if enabled */\n");
553 lf_printf (file, "if (TRACE_%s_P (CPU))\n", phase);
554 lf_printf (file,
555 " trace_generic (SD, CPU, TRACE_%s_IDX, \" %%s\", itable[MY_INDEX].name);\n",
556 phase);
557 }
558 lf_indent (file, -4);
559 lf_printf (file, " }\n");
560 lf_indent_suppress (file);
561 lf_printf (file, "#endif\n");
562 }
563
564
565 void
566 print_sim_engine_abort (lf *file, const char *message)
567 {
568 lf_printf (file, "sim_engine_abort (SD, CPU, cia, ");
569 lf_printf (file, "\"%s\"", message);
570 lf_printf (file, ");\n");
571 }
572
573
574 void
575 print_include (lf *file, igen_module module)
576 {
577 lf_printf (file, "#include \"%s%s.h\"\n", module.prefix.l, module.suffix.l);
578 }
579
580 void
581 print_include_inline (lf *file, igen_module module)
582 {
583 lf_printf (file, "#if C_REVEALS_MODULE_P (%s_INLINE)\n", module.suffix.u);
584 lf_printf (file, "#include \"%s%s.c\"\n", module.prefix.l, module.suffix.l);
585 lf_printf (file, "#else\n");
586 print_include (file, module);
587 lf_printf (file, "#endif\n");
588 lf_printf (file, "\n");
589 }
590
591 void
592 print_includes (lf *file)
593 {
594 lf_printf (file, "\n");
595 lf_printf (file, "#include \"sim-inline.c\"\n");
596 lf_printf (file, "\n");
597 print_include_inline (file, options.module.itable);
598 print_include_inline (file, options.module.idecode);
599 print_include_inline (file, options.module.support);
600 }
601
602
603 /****************************************************************/
604
605
606 static void
607 gen_semantics_h (lf *file, insn_list *semantics, int max_nr_words)
608 {
609 int word_nr;
610 insn_list *semantic;
611 for (word_nr = -1; word_nr <= max_nr_words; word_nr++)
612 {
613 lf_printf (file, "typedef ");
614 print_semantic_function_type (file);
615 lf_printf (file, " %sidecode_semantic", options.module.global.prefix.l);
616 if (word_nr >= 0)
617 lf_printf (file, "_%d", word_nr);
618 lf_printf (file, "\n(");
619 lf_indent (file, +1);
620 print_semantic_function_formal (file, word_nr);
621 lf_indent (file, -1);
622 lf_printf (file, ");\n");
623 lf_printf (file, "\n");
624 }
625 switch (options.gen.code)
626 {
627 case generate_calls:
628 for (semantic = semantics; semantic != NULL; semantic = semantic->next)
629 {
630 /* Ignore any special/internal instructions */
631 if (semantic->insn->nr_words == 0)
632 continue;
633 print_semantic_declaration (file,
634 semantic->insn,
635 semantic->expanded_bits,
636 semantic->opcodes,
637 semantic->nr_prefetched_words);
638 }
639 break;
640 case generate_jumps:
641 lf_print__this_file_is_empty (file, "generating jumps");
642 break;
643 }
644 }
645
646
647 static void
648 gen_semantics_c (lf *file, insn_list *semantics, cache_entry *cache_rules)
649 {
650 if (options.gen.code == generate_calls)
651 {
652 insn_list *semantic;
653 print_includes (file);
654 print_include (file, options.module.semantics);
655 lf_printf (file, "\n");
656
657 for (semantic = semantics; semantic != NULL; semantic = semantic->next)
658 {
659 /* Ignore any special/internal instructions */
660 if (semantic->insn->nr_words == 0)
661 continue;
662 print_semantic_definition (file,
663 semantic->insn,
664 semantic->expanded_bits,
665 semantic->opcodes,
666 cache_rules,
667 semantic->nr_prefetched_words);
668 }
669 }
670 else
671 {
672 lf_print__this_file_is_empty (file, "generating jump engine");
673 }
674 }
675
676
677 /****************************************************************/
678
679
680 static void
681 gen_icache_h (lf *file,
682 insn_list *semantic,
683 function_entry * functions, int max_nr_words)
684 {
685 int word_nr;
686 for (word_nr = 0; word_nr <= max_nr_words; word_nr++)
687 {
688 lf_printf (file, "typedef ");
689 print_icache_function_type (file);
690 lf_printf (file, " %sidecode_icache_%d\n(",
691 options.module.global.prefix.l, word_nr);
692 print_icache_function_formal (file, word_nr);
693 lf_printf (file, ");\n");
694 lf_printf (file, "\n");
695 }
696 if (options.gen.code == generate_calls && options.gen.icache)
697 {
698 function_entry_traverse (file, functions,
699 print_icache_internal_function_declaration,
700 NULL);
701 while (semantic != NULL)
702 {
703 print_icache_declaration (file,
704 semantic->insn,
705 semantic->expanded_bits,
706 semantic->opcodes,
707 semantic->nr_prefetched_words);
708 semantic = semantic->next;
709 }
710 }
711 else
712 {
713 lf_print__this_file_is_empty (file, "generating jump engine");
714 }
715 }
716
717 static void
718 gen_icache_c (lf *file,
719 insn_list *semantic,
720 function_entry * functions, cache_entry *cache_rules)
721 {
722 /* output `internal' invalid/floating-point unavailable functions
723 where needed */
724 if (options.gen.code == generate_calls && options.gen.icache)
725 {
726 lf_printf (file, "\n");
727 lf_printf (file, "#include \"cpu.h\"\n");
728 lf_printf (file, "#include \"idecode.h\"\n");
729 lf_printf (file, "#include \"semantics.h\"\n");
730 lf_printf (file, "#include \"icache.h\"\n");
731 lf_printf (file, "#include \"support.h\"\n");
732 lf_printf (file, "\n");
733 function_entry_traverse (file, functions,
734 print_icache_internal_function_definition,
735 NULL);
736 lf_printf (file, "\n");
737 while (semantic != NULL)
738 {
739 print_icache_definition (file,
740 semantic->insn,
741 semantic->expanded_bits,
742 semantic->opcodes,
743 cache_rules,
744 semantic->nr_prefetched_words);
745 semantic = semantic->next;
746 }
747 }
748 else
749 {
750 lf_print__this_file_is_empty (file, "generating jump engine");
751 }
752 }
753
754
755 /****************************************************************/
756
757
758 static void
759 gen_idecode_h (lf *file,
760 gen_table *gen, insn_table *insns, cache_entry *cache_rules)
761 {
762 lf_printf (file, "typedef unsigned%d %sinstruction_word;\n",
763 options.insn_bit_size, options.module.global.prefix.l);
764 if (options.gen.delayed_branch)
765 {
766 lf_printf (file, "typedef struct _%sinstruction_address {\n",
767 options.module.global.prefix.l);
768 lf_printf (file, " address_word ip; /* instruction pointer */\n");
769 lf_printf (file, " address_word dp; /* delayed-slot pointer */\n");
770 lf_printf (file, "} %sinstruction_address;\n",
771 options.module.global.prefix.l);
772 }
773 else
774 {
775 lf_printf (file, "typedef address_word %sinstruction_address;\n",
776 options.module.global.prefix.l);
777
778 }
779 if (options.gen.nia == nia_is_invalid
780 && strlen (options.module.global.prefix.u) > 0)
781 {
782 lf_indent_suppress (file);
783 lf_printf (file, "#define %sINVALID_INSTRUCTION_ADDRESS ",
784 options.module.global.prefix.u);
785 lf_printf (file, "INVALID_INSTRUCTION_ADDRESS\n");
786 }
787 lf_printf (file, "\n");
788 print_icache_struct (file, insns, cache_rules);
789 lf_printf (file, "\n");
790 if (options.gen.icache)
791 {
792 ERROR ("FIXME - idecode with icache suffering from bit-rot");
793 }
794 else
795 {
796 gen_list *entry;
797 for (entry = gen->tables; entry != NULL; entry = entry->next)
798 {
799 print_idecode_issue_function_header (file,
800 (options.gen.multi_sim
801 ? entry->model->name
802 : NULL),
803 is_function_declaration,
804 1 /*ALWAYS ONE WORD */ );
805 }
806 if (options.gen.multi_sim)
807 {
808 print_idecode_issue_function_header (file,
809 NULL,
810 is_function_variable,
811 1 /*ALWAYS ONE WORD */ );
812 }
813 }
814 }
815
816
817 static void
818 gen_idecode_c (lf *file,
819 gen_table *gen, insn_table *isa, cache_entry *cache_rules)
820 {
821 /* the intro */
822 print_includes (file);
823 print_include_inline (file, options.module.semantics);
824 lf_printf (file, "\n");
825
826 print_idecode_globals (file);
827 lf_printf (file, "\n");
828
829 switch (options.gen.code)
830 {
831 case generate_calls:
832 {
833 gen_list *entry;
834 for (entry = gen->tables; entry != NULL; entry = entry->next)
835 {
836 print_idecode_lookups (file, entry->table, cache_rules);
837
838 /* output the main idecode routine */
839 if (!options.gen.icache)
840 {
841 print_idecode_issue_function_header (file,
842 (options.gen.multi_sim
843 ? entry->model->name
844 : NULL),
845 1 /*is definition */ ,
846 1 /*ALWAYS ONE WORD */ );
847 lf_printf (file, "{\n");
848 lf_indent (file, +2);
849 lf_printf (file, "%sinstruction_address nia;\n",
850 options.module.global.prefix.l);
851 print_idecode_body (file, entry->table, "nia =");
852 lf_printf (file, "return nia;");
853 lf_indent (file, -2);
854 lf_printf (file, "}\n");
855 }
856 }
857 break;
858 }
859 case generate_jumps:
860 {
861 lf_print__this_file_is_empty (file, "generating a jump engine");
862 break;
863 }
864 }
865 }
866
867
868 /****************************************************************/
869
870
871 static void
872 gen_run_c (lf *file, gen_table *gen)
873 {
874 gen_list *entry;
875 lf_printf (file, "#include \"sim-main.h\"\n");
876 lf_printf (file, "#include \"engine.h\"\n");
877 lf_printf (file, "#include \"idecode.h\"\n");
878 lf_printf (file, "#include \"bfd.h\"\n");
879 lf_printf (file, "\n");
880
881 if (options.gen.multi_sim)
882 {
883 print_idecode_issue_function_header (file, NULL, is_function_variable,
884 1);
885 lf_printf (file, "\n");
886 print_engine_run_function_header (file, NULL, is_function_variable);
887 lf_printf (file, "\n");
888 }
889
890 lf_printf (file, "void\n");
891 lf_printf (file, "sim_engine_run (SIM_DESC sd,\n");
892 lf_printf (file, " int next_cpu_nr,\n");
893 lf_printf (file, " int nr_cpus,\n");
894 lf_printf (file, " int siggnal)\n");
895 lf_printf (file, "{\n");
896 lf_indent (file, +2);
897 if (options.gen.multi_sim)
898 {
899 lf_printf (file, "int mach;\n");
900 lf_printf (file, "if (STATE_ARCHITECTURE (sd) == NULL)\n");
901 lf_printf (file, " mach = 0;\n");
902 lf_printf (file, "else\n");
903 lf_printf (file, " mach = STATE_ARCHITECTURE (sd)->mach;\n");
904 lf_printf (file, "switch (mach)\n");
905 lf_printf (file, " {\n");
906 lf_indent (file, +2);
907 for (entry = gen->tables; entry != NULL; entry = entry->next)
908 {
909 if (options.gen.default_model != NULL
910 && (strcmp (entry->model->name, options.gen.default_model) == 0
911 || strcmp (entry->model->full_name,
912 options.gen.default_model) == 0))
913 lf_printf (file, "default:\n");
914 lf_printf (file, "case bfd_mach_%s:\n", entry->model->full_name);
915 lf_indent (file, +2);
916 print_function_name (file, "issue", NULL, /* format name */
917 NULL, /* NO processor */
918 NULL, /* expanded bits */
919 function_name_prefix_idecode);
920 lf_printf (file, " = ");
921 print_function_name (file, "issue", NULL, /* format name */
922 entry->model->name, NULL, /* expanded bits */
923 function_name_prefix_idecode);
924 lf_printf (file, ";\n");
925 print_function_name (file, "run", NULL, /* format name */
926 NULL, /* NO processor */
927 NULL, /* expanded bits */
928 function_name_prefix_engine);
929 lf_printf (file, " = ");
930 print_function_name (file, "run", NULL, /* format name */
931 entry->model->name, NULL, /* expanded bits */
932 function_name_prefix_engine);
933 lf_printf (file, ";\n");
934 lf_printf (file, "break;\n");
935 lf_indent (file, -2);
936 }
937 if (options.gen.default_model == NULL)
938 {
939 lf_printf (file, "default:\n");
940 lf_indent (file, +2);
941 lf_printf (file, "sim_engine_abort (sd, NULL, NULL_CIA,\n");
942 lf_printf (file,
943 " \"sim_engine_run - unknown machine\");\n");
944 lf_printf (file, "break;\n");
945 lf_indent (file, -2);
946 }
947 lf_indent (file, -2);
948 lf_printf (file, " }\n");
949 }
950 print_function_name (file, "run", NULL, /* format name */
951 NULL, /* NO processor */
952 NULL, /* expanded bits */
953 function_name_prefix_engine);
954 lf_printf (file, " (sd, next_cpu_nr, nr_cpus, siggnal);\n");
955 lf_indent (file, -2);
956 lf_printf (file, "}\n");
957 }
958
959 /****************************************************************/
960
961 static gen_table *
962 do_gen (insn_table *isa, decode_table *decode_rules)
963 {
964 gen_table *gen;
965 if (decode_rules == NULL)
966 error (NULL, "Must specify a decode table\n");
967 if (isa == NULL)
968 error (NULL, "Must specify an instruction table\n");
969 if (decode_table_max_word_nr (decode_rules) > 0)
970 options.gen.multi_word = decode_table_max_word_nr (decode_rules);
971 gen = make_gen_tables (isa, decode_rules);
972 gen_tables_expand_insns (gen);
973 gen_tables_expand_semantics (gen);
974 return gen;
975 }
976
977 /****************************************************************/
978
979 igen_options options;
980
981 int
982 main (int argc, char **argv, char **envp)
983 {
984 cache_entry *cache_rules = NULL;
985 lf_file_references file_references = lf_include_references;
986 decode_table *decode_rules = NULL;
987 insn_table *isa = NULL;
988 gen_table *gen = NULL;
989 char *real_file_name = NULL;
990 int is_header = 0;
991 int ch;
992 lf *standard_out =
993 lf_open ("-", "stdout", lf_omit_references, lf_is_text, "igen");
994
995 INIT_OPTIONS ();
996
997 if (argc == 1)
998 {
999 printf ("Usage:\n");
1000 printf ("\n");
1001 printf (" igen <config-opts> ... <input-opts>... <output-opts>...\n");
1002 printf ("\n");
1003 printf ("Config options:\n");
1004 printf ("\n");
1005 printf (" -B <bit-size>\n");
1006 printf ("\t Set the number of bits in an instruction (deprecated).\n");
1007 printf
1008 ("\t This option can now be set directly in the instruction table.\n");
1009 printf ("\n");
1010 printf (" -D <data-structure>\n");
1011 printf
1012 ("\t Dump the specified data structure to stdout. Valid structures include:\n");
1013 printf
1014 ("\t processor-names - list the names of all the processors (models)\n");
1015 printf ("\n");
1016 printf (" -F <filter-list>\n");
1017 printf
1018 ("\t Filter out any instructions with a non-empty flags field that contains\n");
1019 printf ("\t a flag not listed in the <filter-list>.\n");
1020 printf ("\n");
1021 printf (" -H <high-bit>\n");
1022 printf
1023 ("\t Set the number of the high (most significant) instruction bit (deprecated).\n");
1024 printf
1025 ("\t This option can now be set directly in the instruction table.\n");
1026 printf ("\n");
1027 printf (" -I <directory>\n");
1028 printf
1029 ("\t Add <directory> to the list of directories searched when opening a file\n");
1030 printf ("\n");
1031 printf (" -M <model-list>\n");
1032 printf
1033 ("\t Filter out any instructions that do not support at least one of the listed\n");
1034 printf
1035 ("\t models (An instructions with no model information is considered to support\n");
1036 printf ("\t all models.).\n");
1037 printf ("\n");
1038 printf (" -N <nr-cpus>\n");
1039 printf ("\t Generate a simulator supporting <nr-cpus>\n");
1040 printf
1041 ("\t Specify `-N 0' to disable generation of the SMP. Specifying `-N 1' will\n");
1042 printf
1043 ("\t still generate an SMP enabled simulator but will only support one CPU.\n");
1044 printf ("\n");
1045 printf (" -T <mechanism>\n");
1046 printf
1047 ("\t Override the decode mechanism specified by the decode rules\n");
1048 printf ("\n");
1049 printf (" -P <prefix>\n");
1050 printf
1051 ("\t Prepend global names (except itable) with the string <prefix>.\n");
1052 printf
1053 ("\t Specify -P <module>=<prefix> to set a specific <module>'s prefix.\n");
1054 printf ("\n");
1055 printf (" -S <suffix>\n");
1056 printf
1057 ("\t Replace a global name (suffix) (except itable) with the string <suffix>.\n");
1058 printf
1059 ("\t Specify -S <module>=<suffix> to change a specific <module>'s name (suffix).\n");
1060 printf ("\n");
1061 printf (" -Werror\n");
1062 printf ("\t Make warnings errors\n");
1063 printf (" -Wnodiscard\n");
1064 printf
1065 ("\t Suppress warnings about discarded functions and instructions\n");
1066 printf (" -Wnowidth\n");
1067 printf
1068 ("\t Suppress warnings about instructions with invalid widths\n");
1069 printf (" -Wnounimplemented\n");
1070 printf ("\t Suppress warnings about unimplemented instructions\n");
1071 printf ("\n");
1072 printf (" -G [!]<gen-option>\n");
1073 printf ("\t Any of the following options:\n");
1074 printf ("\n");
1075 printf
1076 ("\t decode-duplicate - Override the decode rules, forcing the duplication of\n");
1077 printf ("\t semantic functions\n");
1078 printf
1079 ("\t decode-combine - Combine any duplicated entries within a table\n");
1080 printf
1081 ("\t decode-zero-reserved - Override the decode rules, forcing reserved bits to be\n");
1082 printf ("\t treated as zero.\n");
1083 printf
1084 ("\t decode-switch-is-goto - Overfide the padded-switch code type as a goto-switch\n");
1085 printf ("\n");
1086 printf
1087 ("\t gen-conditional-issue - conditionally issue each instruction\n");
1088 printf
1089 ("\t gen-delayed-branch - need both cia and nia passed around\n");
1090 printf
1091 ("\t gen-direct-access - use #defines to directly access values\n");
1092 printf
1093 ("\t gen-zero-r<N> - arch assumes GPR(<N>) == 0, keep it that way\n");
1094 printf
1095 ("\t gen-icache[=<N> - generate an instruction cracking cache of size <N>\n");
1096 printf ("\t Default size is %d\n",
1097 options.gen.icache_size);
1098 printf
1099 ("\t gen-insn-in-icache - save original instruction when cracking\n");
1100 printf
1101 ("\t gen-multi-sim[=MODEL] - generate multiple simulators - one per model\n");
1102 printf
1103 ("\t If specified MODEL is made the default architecture.\n");
1104 printf
1105 ("\t By default, a single simulator that will\n");
1106 printf
1107 ("\t execute any instruction is generated\n");
1108 printf
1109 ("\t gen-multi-word - generate code allowing for multi-word insns\n");
1110 printf
1111 ("\t gen-semantic-icache - include semantic code in cracking functions\n");
1112 printf
1113 ("\t gen-slot-verification - perform slot verification as part of decode\n");
1114 printf ("\t gen-nia-invalid - NIA defaults to nia_invalid\n");
1115 printf ("\t gen-nia-void - do not compute/return NIA\n");
1116 printf ("\n");
1117 printf
1118 ("\t trace-combine - report combined entries a rule application\n");
1119 printf
1120 ("\t trace-entries - report entries after a rules application\n");
1121 printf ("\t trace-rule-rejection - report each rule as rejected\n");
1122 printf ("\t trace-rule-selection - report each rule as selected\n");
1123 printf
1124 ("\t trace-insn-insertion - report each instruction as it is inserted into a decode table\n");
1125 printf
1126 ("\t trace-rule-expansion - report each instruction as it is expanded (before insertion into a decode table)\n");
1127 printf ("\t trace-all - enable all trace options\n");
1128 printf ("\n");
1129 printf
1130 ("\t field-widths - instruction formats specify widths (deprecated)\n");
1131 printf
1132 ("\t By default, an instruction format specifies bit\n");
1133 printf ("\t positions\n");
1134 printf
1135 ("\t This option can now be set directly in the\n");
1136 printf ("\t instruction table\n");
1137 printf
1138 ("\t jumps - use jumps instead of function calls\n");
1139 printf
1140 ("\t omit-line-numbers - do not include line number information in the output\n");
1141 printf ("\n");
1142 printf ("Input options:\n");
1143 printf ("\n");
1144 printf (" -k <cache-rules> (deprecated)\n");
1145 printf (" -o <decode-rules>\n");
1146 printf (" -i <instruction-table>\n");
1147 printf ("\n");
1148 printf ("Output options:\n");
1149 printf ("\n");
1150 printf (" -x Perform expansion (required)\n");
1151 printf
1152 (" -n <real-name> Specify the real name of the next output file\n");
1153 printf
1154 (" -h Generate the header (.h) file rather than the body (.c)\n");
1155 printf (" -c <output-file> output icache\n");
1156 printf (" -d <output-file> output idecode\n");
1157 printf (" -e <output-file> output engine\n");
1158 printf (" -f <output-file> output support functions\n");
1159 printf (" -m <output-file> output model\n");
1160 printf (" -r <output-file> output multi-sim run\n");
1161 printf (" -s <output-file> output schematic\n");
1162 printf (" -t <output-file> output itable\n");
1163 }
1164
1165 while ((ch = getopt (argc, argv,
1166 "B:D:F:G:H:I:M:N:P:T:W:o:k:i:n:hc:d:e:m:r:s:t:f:x"))
1167 != -1)
1168 {
1169 fprintf (stderr, " -%c ", ch);
1170 if (optarg)
1171 fprintf (stderr, "%s ", optarg);
1172 fprintf (stderr, "\\\n");
1173
1174 switch (ch)
1175 {
1176
1177 case 'M':
1178 filter_parse (&options.model_filter, optarg);
1179 break;
1180
1181 case 'D':
1182 if (strcmp (optarg, "processor-names"))
1183 {
1184 char *processor;
1185 for (processor = filter_next (options.model_filter, "");
1186 processor != NULL;
1187 processor = filter_next (options.model_filter, processor))
1188 lf_printf (standard_out, "%s\n", processor);
1189 }
1190 else
1191 error (NULL, "Unknown data structure %s, not dumped\n", optarg);
1192 break;
1193
1194 case 'F':
1195 filter_parse (&options.flags_filter, optarg);
1196 break;
1197
1198 case 'I':
1199 {
1200 table_include **dir = &options.include;
1201 while ((*dir) != NULL)
1202 dir = &(*dir)->next;
1203 (*dir) = ZALLOC (table_include);
1204 (*dir)->dir = strdup (optarg);
1205 }
1206 break;
1207
1208 case 'B':
1209 options.insn_bit_size = a2i (optarg);
1210 if (options.insn_bit_size <= 0
1211 || options.insn_bit_size > max_insn_bit_size)
1212 {
1213 error (NULL, "Instruction bitsize must be in range 1..%d\n",
1214 max_insn_bit_size);
1215 }
1216 if (options.hi_bit_nr != options.insn_bit_size - 1
1217 && options.hi_bit_nr != 0)
1218 {
1219 error (NULL, "Conflict betweem hi-bit-nr and insn-bit-size\n");
1220 }
1221 break;
1222
1223 case 'H':
1224 options.hi_bit_nr = a2i (optarg);
1225 if (options.hi_bit_nr != options.insn_bit_size - 1
1226 && options.hi_bit_nr != 0)
1227 {
1228 error (NULL, "Conflict between hi-bit-nr and insn-bit-size\n");
1229 }
1230 break;
1231
1232 case 'N':
1233 options.gen.smp = a2i (optarg);
1234 break;
1235
1236 case 'P':
1237 case 'S':
1238 {
1239 igen_module *names;
1240 igen_name *name;
1241 char *chp;
1242 chp = strchr (optarg, '=');
1243 if (chp == NULL)
1244 {
1245 names = &options.module.global;
1246 chp = optarg;
1247 }
1248 else
1249 {
1250 chp = chp + 1; /* skip `=' */
1251 names = NULL;
1252 if (strncmp (optarg, "global=", chp - optarg) == 0)
1253 {
1254 names = &options.module.global;
1255 }
1256 if (strncmp (optarg, "engine=", chp - optarg) == 0)
1257 {
1258 names = &options.module.engine;
1259 }
1260 if (strncmp (optarg, "icache=", chp - optarg) == 0)
1261 {
1262 names = &options.module.icache;
1263 }
1264 if (strncmp (optarg, "idecode=", chp - optarg) == 0)
1265 {
1266 names = &options.module.idecode;
1267 }
1268 if (strncmp (optarg, "itable=", chp - optarg) == 0)
1269 {
1270 names = &options.module.itable;
1271 }
1272 if (strncmp (optarg, "semantics=", chp - optarg) == 0)
1273 {
1274 names = &options.module.semantics;
1275 }
1276 if (strncmp (optarg, "support=", chp - optarg) == 0)
1277 {
1278 names = &options.module.support;
1279 }
1280 if (names == NULL)
1281 {
1282 error (NULL, "Prefix `%s' unreconized\n", optarg);
1283 }
1284 }
1285 switch (ch)
1286 {
1287 case 'P':
1288 name = &names->prefix;
1289 break;
1290 case 'S':
1291 name = &names->suffix;
1292 break;
1293 default:
1294 abort (); /* Bad switch. */
1295 }
1296 name->u = strdup (chp);
1297 name->l = strdup (chp);
1298 chp = name->u;
1299 while (*chp)
1300 {
1301 if (islower (*chp))
1302 *chp = toupper (*chp);
1303 chp++;
1304 }
1305 if (name == &options.module.global.prefix)
1306 {
1307 options.module.engine.prefix = options.module.global.prefix;
1308 options.module.icache.prefix = options.module.global.prefix;
1309 options.module.idecode.prefix = options.module.global.prefix;
1310 /* options.module.itable.prefix = options.module.global.prefix; */
1311 options.module.semantics.prefix =
1312 options.module.global.prefix;
1313 options.module.support.prefix = options.module.global.prefix;
1314 }
1315 if (name == &options.module.global.suffix)
1316 {
1317 options.module.engine.suffix = options.module.global.suffix;
1318 options.module.icache.suffix = options.module.global.suffix;
1319 options.module.idecode.suffix = options.module.global.suffix;
1320 /* options.module.itable.suffix = options.module.global.suffix; */
1321 options.module.semantics.suffix =
1322 options.module.global.suffix;
1323 options.module.support.suffix = options.module.global.suffix;
1324 }
1325 break;
1326 }
1327
1328 case 'W':
1329 {
1330 if (strcmp (optarg, "error") == 0)
1331 options.warning = error;
1332 else if (strcmp (optarg, "nodiscard") == 0)
1333 options.warn.discard = 0;
1334 else if (strcmp (optarg, "discard") == 0)
1335 options.warn.discard = 1;
1336 else if (strcmp (optarg, "nowidth") == 0)
1337 options.warn.width = 0;
1338 else if (strcmp (optarg, "width") == 0)
1339 options.warn.width = 1;
1340 else if (strcmp (optarg, "nounimplemented") == 0)
1341 options.warn.unimplemented = 0;
1342 else if (strcmp (optarg, "unimplemented") == 0)
1343 options.warn.unimplemented = 1;
1344 else
1345 error (NULL, "Unknown -W argument `%s'\n", optarg);
1346 break;
1347 }
1348
1349
1350 case 'G':
1351 {
1352 int enable_p;
1353 char *argp;
1354 if (strncmp (optarg, "no-", strlen ("no-")) == 0)
1355 {
1356 argp = optarg + strlen ("no-");
1357 enable_p = 0;
1358 }
1359 else if (strncmp (optarg, "!", strlen ("!")) == 0)
1360 {
1361 argp = optarg + strlen ("no-");
1362 enable_p = 0;
1363 }
1364 else
1365 {
1366 argp = optarg;
1367 enable_p = 1;
1368 }
1369 if (strcmp (argp, "decode-duplicate") == 0)
1370 {
1371 options.decode.duplicate = enable_p;
1372 }
1373 else if (strcmp (argp, "decode-combine") == 0)
1374 {
1375 options.decode.combine = enable_p;
1376 }
1377 else if (strcmp (argp, "decode-zero-reserved") == 0)
1378 {
1379 options.decode.zero_reserved = enable_p;
1380 }
1381
1382 else if (strcmp (argp, "gen-conditional-issue") == 0)
1383 {
1384 options.gen.conditional_issue = enable_p;
1385 }
1386 else if (strcmp (argp, "conditional-issue") == 0)
1387 {
1388 options.gen.conditional_issue = enable_p;
1389 options.warning (NULL,
1390 "Option conditional-issue replaced by gen-conditional-issue\n");
1391 }
1392 else if (strcmp (argp, "gen-delayed-branch") == 0)
1393 {
1394 options.gen.delayed_branch = enable_p;
1395 }
1396 else if (strcmp (argp, "delayed-branch") == 0)
1397 {
1398 options.gen.delayed_branch = enable_p;
1399 options.warning (NULL,
1400 "Option delayed-branch replaced by gen-delayed-branch\n");
1401 }
1402 else if (strcmp (argp, "gen-direct-access") == 0)
1403 {
1404 options.gen.direct_access = enable_p;
1405 }
1406 else if (strcmp (argp, "direct-access") == 0)
1407 {
1408 options.gen.direct_access = enable_p;
1409 options.warning (NULL,
1410 "Option direct-access replaced by gen-direct-access\n");
1411 }
1412 else if (strncmp (argp, "gen-zero-r", strlen ("gen-zero-r")) == 0)
1413 {
1414 options.gen.zero_reg = enable_p;
1415 options.gen.zero_reg_nr = atoi (argp + strlen ("gen-zero-r"));
1416 }
1417 else if (strncmp (argp, "zero-r", strlen ("zero-r")) == 0)
1418 {
1419 options.gen.zero_reg = enable_p;
1420 options.gen.zero_reg_nr = atoi (argp + strlen ("zero-r"));
1421 options.warning (NULL,
1422 "Option zero-r<N> replaced by gen-zero-r<N>\n");
1423 }
1424 else if (strncmp (argp, "gen-icache", strlen ("gen-icache")) == 0)
1425 {
1426 switch (argp[strlen ("gen-icache")])
1427 {
1428 case '=':
1429 options.gen.icache_size =
1430 atoi (argp + strlen ("gen-icache") + 1);
1431 options.gen.icache = enable_p;
1432 break;
1433 case '\0':
1434 options.gen.icache = enable_p;
1435 break;
1436 default:
1437 error (NULL,
1438 "Expecting -Ggen-icache or -Ggen-icache=<N>\n");
1439 }
1440 }
1441 else if (strcmp (argp, "gen-insn-in-icache") == 0)
1442 {
1443 options.gen.insn_in_icache = enable_p;
1444 }
1445 else if (strncmp (argp, "gen-multi-sim", strlen ("gen-multi-sim"))
1446 == 0)
1447 {
1448 char *arg = &argp[strlen ("gen-multi-sim")];
1449 switch (arg[0])
1450 {
1451 case '=':
1452 options.gen.multi_sim = enable_p;
1453 options.gen.default_model = arg + 1;
1454 if (!filter_is_member
1455 (options.model_filter, options.gen.default_model))
1456 error (NULL, "multi-sim model %s unknown\n",
1457 options.gen.default_model);
1458 break;
1459 case '\0':
1460 options.gen.multi_sim = enable_p;
1461 options.gen.default_model = NULL;
1462 break;
1463 default:
1464 error (NULL,
1465 "Expecting -Ggen-multi-sim or -Ggen-multi-sim=<MODEL>\n");
1466 break;
1467 }
1468 }
1469 else if (strcmp (argp, "gen-multi-word") == 0)
1470 {
1471 options.gen.multi_word = enable_p;
1472 }
1473 else if (strcmp (argp, "gen-semantic-icache") == 0)
1474 {
1475 options.gen.semantic_icache = enable_p;
1476 }
1477 else if (strcmp (argp, "gen-slot-verification") == 0)
1478 {
1479 options.gen.slot_verification = enable_p;
1480 }
1481 else if (strcmp (argp, "verify-slot") == 0)
1482 {
1483 options.gen.slot_verification = enable_p;
1484 options.warning (NULL,
1485 "Option verify-slot replaced by gen-slot-verification\n");
1486 }
1487 else if (strcmp (argp, "gen-nia-invalid") == 0)
1488 {
1489 options.gen.nia = nia_is_invalid;
1490 }
1491 else if (strcmp (argp, "default-nia-minus-one") == 0)
1492 {
1493 options.gen.nia = nia_is_invalid;
1494 options.warning (NULL,
1495 "Option default-nia-minus-one replaced by gen-nia-invalid\n");
1496 }
1497 else if (strcmp (argp, "gen-nia-void") == 0)
1498 {
1499 options.gen.nia = nia_is_void;
1500 }
1501 else if (strcmp (argp, "trace-all") == 0)
1502 {
1503 memset (&options.trace, enable_p, sizeof (options.trace));
1504 }
1505 else if (strcmp (argp, "trace-combine") == 0)
1506 {
1507 options.trace.combine = enable_p;
1508 }
1509 else if (strcmp (argp, "trace-entries") == 0)
1510 {
1511 options.trace.entries = enable_p;
1512 }
1513 else if (strcmp (argp, "trace-rule-rejection") == 0)
1514 {
1515 options.trace.rule_rejection = enable_p;
1516 }
1517 else if (strcmp (argp, "trace-rule-selection") == 0)
1518 {
1519 options.trace.rule_selection = enable_p;
1520 }
1521 else if (strcmp (argp, "trace-insn-insertion") == 0)
1522 {
1523 options.trace.insn_insertion = enable_p;
1524 }
1525 else if (strcmp (argp, "trace-insn-expansion") == 0)
1526 {
1527 options.trace.insn_expansion = enable_p;
1528 }
1529 else if (strcmp (argp, "jumps") == 0)
1530 {
1531 options.gen.code = generate_jumps;
1532 }
1533 else if (strcmp (argp, "field-widths") == 0)
1534 {
1535 options.insn_specifying_widths = enable_p;
1536 }
1537 else if (strcmp (argp, "omit-line-numbers") == 0)
1538 {
1539 file_references = lf_omit_references;
1540 }
1541 else
1542 {
1543 error (NULL, "Unknown option %s\n", optarg);
1544 }
1545 break;
1546 }
1547
1548 case 'i':
1549 isa = load_insn_table (optarg, cache_rules);
1550 if (isa->illegal_insn == NULL)
1551 error (NULL, "illegal-instruction missing from insn table\n");
1552 break;
1553
1554 case 'x':
1555 gen = do_gen (isa, decode_rules);
1556 break;
1557
1558 case 'o':
1559 decode_rules = load_decode_table (optarg);
1560 break;
1561
1562 case 'k':
1563 if (isa != NULL)
1564 error (NULL, "Cache file must appear before the insn file\n");
1565 cache_rules = load_cache_table (optarg);
1566 break;
1567
1568 case 'n':
1569 real_file_name = strdup (optarg);
1570 break;
1571
1572 case 'h':
1573 is_header = 1;
1574 break;
1575
1576 case 'c':
1577 case 'd':
1578 case 'e':
1579 case 'f':
1580 case 'm':
1581 case 'r':
1582 case 's':
1583 case 't':
1584 {
1585 lf *file = lf_open (optarg, real_file_name, file_references,
1586 (is_header ? lf_is_h : lf_is_c),
1587 argv[0]);
1588 if (gen == NULL && ch != 't' && ch != 'm' && ch != 'f')
1589 {
1590 options.warning (NULL,
1591 "Explicitly generate tables with -x option\n");
1592 gen = do_gen (isa, decode_rules);
1593 }
1594 lf_print__file_start (file);
1595 switch (ch)
1596 {
1597 case 'm':
1598 if (is_header)
1599 gen_model_h (file, isa);
1600 else
1601 gen_model_c (file, isa);
1602 break;
1603 case 't':
1604 if (is_header)
1605 gen_itable_h (file, isa);
1606 else
1607 gen_itable_c (file, isa);
1608 break;
1609 case 'f':
1610 if (is_header)
1611 gen_support_h (file, isa);
1612 else
1613 gen_support_c (file, isa);
1614 break;
1615 case 'r':
1616 if (is_header)
1617 options.warning (NULL, "-hr option ignored\n");
1618 else
1619 gen_run_c (file, gen);
1620 break;
1621 case 's':
1622 if (is_header)
1623 gen_semantics_h (file, gen->semantics, isa->max_nr_words);
1624 else
1625 gen_semantics_c (file, gen->semantics, isa->caches);
1626 break;
1627 case 'd':
1628 if (is_header)
1629 gen_idecode_h (file, gen, isa, cache_rules);
1630 else
1631 gen_idecode_c (file, gen, isa, cache_rules);
1632 break;
1633 case 'e':
1634 if (is_header)
1635 gen_engine_h (file, gen, isa, cache_rules);
1636 else
1637 gen_engine_c (file, gen, isa, cache_rules);
1638 break;
1639 case 'c':
1640 if (is_header)
1641 gen_icache_h (file,
1642 gen->semantics,
1643 isa->functions, isa->max_nr_words);
1644 else
1645 gen_icache_c (file,
1646 gen->semantics, isa->functions, cache_rules);
1647 break;
1648 }
1649 lf_print__file_finish (file);
1650 lf_close (file);
1651 is_header = 0;
1652 }
1653 real_file_name = NULL;
1654 break;
1655 default:
1656 ERROR ("Bad switch");
1657 }
1658 }
1659 return (0);
1660 }
GDB Binutils - Deliverables
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