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gdb: add target_ops::supports_displaced_step
[deliverable/binutils-gdb.git] / sim / igen / igen.c
1 /* The IGEN simulator generator for GDB, the GNU Debugger.
2
3 Copyright 2002-2020 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
23
24 #include <getopt.h>
25
26 #include "misc.h"
27 #include "lf.h"
28 #include "table.h"
29 #include "config.h"
30 #include "filter.h"
31
32 #include "igen.h"
33
34 #include "ld-insn.h"
35 #include "ld-decode.h"
36 #include "ld-cache.h"
37
38 #include "gen.h"
39
40 #include "gen-model.h"
41 #include "gen-icache.h"
42 #include "gen-itable.h"
43 #include "gen-idecode.h"
44 #include "gen-semantics.h"
45 #include "gen-engine.h"
46 #include "gen-support.h"
47 #include "gen-engine.h"
48
49
50 /****************************************************************/
51
52
53 /* Semantic functions */
54
55 int
56 print_semantic_function_formal (lf *file, int nr_prefetched_words)
57 {
58 int nr = 0;
59 int word_nr;
60 if (options.gen.icache || nr_prefetched_words < 0)
61 {
62 nr += lf_printf (file, "SIM_DESC sd,\n");
63 nr += lf_printf (file, "%sidecode_cache *cache_entry,\n",
64 options.module.global.prefix.l);
65 nr += lf_printf (file, "%sinstruction_address cia",
66 options.module.global.prefix.l);
67 }
68 else if (options.gen.smp)
69 {
70 nr += lf_printf (file, "sim_cpu *cpu,\n");
71 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
72 {
73 nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
74 options.module.global.prefix.l, word_nr);
75 }
76 nr += lf_printf (file, "%sinstruction_address cia",
77 options.module.global.prefix.l);
78 }
79 else
80 {
81 nr += lf_printf (file, "SIM_DESC sd,\n");
82 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
83 {
84 nr += lf_printf (file, "%sinstruction_word instruction_%d,\n",
85 options.module.global.prefix.l, word_nr);
86 }
87 nr += lf_printf (file, "%sinstruction_address cia",
88 options.module.global.prefix.l);
89 }
90 return nr;
91 }
92
93 int
94 print_semantic_function_actual (lf *file, int nr_prefetched_words)
95 {
96 int nr = 0;
97 int word_nr;
98 if (options.gen.icache || nr_prefetched_words < 0)
99 {
100 nr += lf_printf (file, "sd, cache_entry, cia");
101 }
102 else
103 {
104 if (options.gen.smp)
105 nr += lf_printf (file, "cpu");
106 else
107 nr += lf_printf (file, "sd");
108 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
109 nr += lf_printf (file, ", instruction_%d", word_nr);
110 nr += lf_printf (file, ", cia");
111 }
112 return nr;
113 }
114
115 int
116 print_semantic_function_type (lf *file)
117 {
118 int nr = 0;
119 nr += lf_printf (file, "%sinstruction_address",
120 options.module.global.prefix.l);
121 return nr;
122 }
123
124
125 /* Idecode functions */
126
127 int
128 print_icache_function_formal (lf *file, int nr_prefetched_words)
129 {
130 int nr = 0;
131 int word_nr;
132 if (options.gen.smp)
133 nr += lf_printf (file, "sim_cpu *cpu,\n");
134 else
135 nr += lf_printf (file, "SIM_DESC sd,\n");
136 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
137 nr += lf_printf (file, " %sinstruction_word instruction_%d,\n",
138 options.module.global.prefix.l, word_nr);
139 nr += lf_printf (file, " %sinstruction_address cia,\n",
140 options.module.global.prefix.l);
141 nr += lf_printf (file, " %sidecode_cache *cache_entry",
142 options.module.global.prefix.l);
143 return nr;
144 }
145
146 int
147 print_icache_function_actual (lf *file, int nr_prefetched_words)
148 {
149 int nr = 0;
150 int word_nr;
151 if (options.gen.smp)
152 nr += lf_printf (file, "cpu");
153 else
154 nr += lf_printf (file, "sd");
155 for (word_nr = 0; word_nr < nr_prefetched_words; word_nr++)
156 nr += lf_printf (file, ", instruction_%d", word_nr);
157 nr += lf_printf (file, ", cia, cache_entry");
158 return nr;
159 }
160
161 int
162 print_icache_function_type (lf *file)
163 {
164 int nr;
165 if (options.gen.semantic_icache)
166 {
167 nr = print_semantic_function_type (file);
168 }
169 else
170 {
171 nr = lf_printf (file, "%sidecode_semantic *",
172 options.module.global.prefix.l);
173 }
174 return nr;
175 }
176
177
178 /* Function names */
179
180 static int
181 print_opcode_bits (lf *file, opcode_bits *bits)
182 {
183 int nr = 0;
184 if (bits == NULL)
185 return nr;
186 nr += lf_putchr (file, '_');
187 nr += lf_putstr (file, bits->field->val_string);
188 if (bits->opcode->is_boolean && bits->value == 0)
189 nr += lf_putint (file, bits->opcode->boolean_constant);
190 else if (!bits->opcode->is_boolean)
191 {
192 if (bits->opcode->last < bits->field->last)
193 nr +=
194 lf_putint (file,
195 bits->value << (bits->field->last - bits->opcode->last));
196 else
197 nr += lf_putint (file, bits->value);
198 }
199 nr += print_opcode_bits (file, bits->next);
200 return nr;
201 }
202
203 static int
204 print_c_name (lf *file, const char *name)
205 {
206 int nr = 0;
207 const char *pos;
208 for (pos = name; *pos != '\0'; pos++)
209 {
210 switch (*pos)
211 {
212 case '/':
213 case '-':
214 break;
215 case ' ':
216 case '.':
217 nr += lf_putchr (file, '_');
218 break;
219 default:
220 nr += lf_putchr (file, *pos);
221 break;
222 }
223 }
224 return nr;
225 }
226
227 extern int
228 print_function_name (lf *file,
229 const char *basename,
230 const char *format_name,
231 const char *model_name,
232 opcode_bits *expanded_bits,
233 lf_function_name_prefixes prefix)
234 {
235 int nr = 0;
236 /* the prefix */
237 switch (prefix)
238 {
239 case function_name_prefix_semantics:
240 nr += lf_printf (file, "%s", options.module.semantics.prefix.l);
241 nr += lf_printf (file, "semantic_");
242 break;
243 case function_name_prefix_idecode:
244 nr += lf_printf (file, "%s", options.module.idecode.prefix.l);
245 nr += lf_printf (file, "idecode_");
246 break;
247 case function_name_prefix_itable:
248 nr += lf_printf (file, "%sitable_", options.module.itable.prefix.l);
249 break;
250 case function_name_prefix_icache:
251 nr += lf_printf (file, "%s", options.module.icache.prefix.l);
252 nr += lf_printf (file, "icache_");
253 break;
254 case function_name_prefix_engine:
255 nr += lf_printf (file, "%s", options.module.engine.prefix.l);
256 nr += lf_printf (file, "engine_");
257 default:
258 break;
259 }
260
261 if (model_name != NULL)
262 {
263 nr += print_c_name (file, model_name);
264 nr += lf_printf (file, "_");
265 }
266
267 /* the function name */
268 nr += print_c_name (file, basename);
269
270 /* the format name if available */
271 if (format_name != NULL)
272 {
273 nr += lf_printf (file, "_");
274 nr += print_c_name (file, format_name);
275 }
276
277 /* the suffix */
278 nr += print_opcode_bits (file, expanded_bits);
279
280 return nr;
281 }
282
283
284 void
285 print_my_defines (lf *file,
286 const char *basename,
287 const char *format_name, opcode_bits *expanded_bits)
288 {
289 /* #define MY_INDEX xxxxx */
290 lf_indent_suppress (file);
291 lf_printf (file, "#undef MY_INDEX\n");
292 lf_indent_suppress (file);
293 lf_printf (file, "#define MY_INDEX ");
294 print_function_name (file,
295 basename, format_name, NULL,
296 NULL, function_name_prefix_itable);
297 lf_printf (file, "\n");
298 /* #define MY_PREFIX xxxxxx */
299 lf_indent_suppress (file);
300 lf_printf (file, "#undef ");
301 print_function_name (file,
302 basename, format_name, NULL,
303 expanded_bits, function_name_prefix_none);
304 lf_printf (file, "\n");
305 lf_indent_suppress (file);
306 lf_printf (file, "#undef MY_PREFIX\n");
307 lf_indent_suppress (file);
308 lf_printf (file, "#define MY_PREFIX ");
309 print_function_name (file,
310 basename, format_name, NULL,
311 expanded_bits, function_name_prefix_none);
312 lf_printf (file, "\n");
313 /* #define MY_NAME xxxxxx */
314 lf_indent_suppress (file);
315 lf_indent_suppress (file);
316 lf_printf (file, "#undef MY_NAME\n");
317 lf_indent_suppress (file);
318 lf_printf (file, "#define MY_NAME \"");
319 print_function_name (file,
320 basename, format_name, NULL,
321 expanded_bits, function_name_prefix_none);
322 lf_printf (file, "\"\n");
323 }
324
325
326 static int
327 print_itrace_prefix (lf *file)
328 {
329 const char *prefix = "trace_prefix (";
330 int indent = strlen (prefix);
331 lf_printf (file, "%sSD, CPU, cia, CIA, TRACE_LINENUM_P (CPU), \\\n",
332 prefix);
333 lf_indent (file, +indent);
334 lf_printf (file, "%sitable[MY_INDEX].file, \\\n",
335 options.module.itable.prefix.l);
336 lf_printf (file, "%sitable[MY_INDEX].line_nr, \\\n",
337 options.module.itable.prefix.l);
338 lf_printf (file, "\"");
339 return indent;
340 }
341
342
343 static void
344 print_itrace_format (lf *file, insn_mnemonic_entry *assembler)
345 {
346 /* pass=1 is fmt string; pass=2 is arguments */
347 int pass;
348 /* print the format string */
349 for (pass = 1; pass <= 2; pass++)
350 {
351 const char *chp = assembler->format;
352 chp++; /* skip the leading quote */
353 /* write out the format/args */
354 while (*chp != '\0')
355 {
356 if (chp[0] == '\\' && (chp[1] == '<' || chp[1] == '>'))
357 {
358 if (pass == 1)
359 lf_putchr (file, chp[1]);
360 chp += 2;
361 }
362 else if (chp[0] == '<' || chp[0] == '%')
363 {
364 /* parse [ "%" ... ] "<" [ func "#" ] param ">" */
365 const char *fmt;
366 const char *func;
367 int strlen_func;
368 const char *param;
369 int strlen_param;
370 /* the "%" ... "<" format */
371 fmt = chp;
372 while (chp[0] != '<' && chp[0] != '\0')
373 chp++;
374 if (chp[0] != '<')
375 error (assembler->line, "Missing `<' after `%%'\n");
376 chp++;
377 /* [ "func" # ] OR "param" */
378 func = chp;
379 param = chp;
380 while (chp[0] != '>' && chp[0] != '#' && chp[0] != '\0')
381 chp++;
382 strlen_func = chp - func;
383 if (chp[0] == '#')
384 {
385 chp++;
386 param = chp;
387 while (chp[0] != '>' && chp[0] != '\0')
388 chp++;
389 }
390 strlen_param = chp - param;
391 if (chp[0] != '>')
392 error (assembler->line,
393 "Missing closing `>' in assembler string\n");
394 chp++;
395 /* now process it */
396 if (pass == 2)
397 lf_printf (file, ", \\\n");
398 if (strncmp (fmt, "<", 1) == 0)
399 /* implicit long int format */
400 {
401 if (pass == 1)
402 lf_printf (file, "%%ld");
403 else
404 {
405 lf_printf (file, "(long) ");
406 lf_write (file, param, strlen_param);
407 }
408 }
409 else if (strncmp (fmt, "%<", 2) == 0)
410 /* explicit format */
411 {
412 if (pass == 1)
413 lf_printf (file, "%%");
414 else
415 lf_write (file, param, strlen_param);
416 }
417 else if (strncmp (fmt, "%s<", 3) == 0)
418 /* string format */
419 {
420 if (pass == 1)
421 lf_printf (file, "%%s");
422 else
423 {
424 lf_printf (file, "%sstr_",
425 options.module.global.prefix.l);
426 lf_write (file, func, strlen_func);
427 lf_printf (file, " (SD_, ");
428 lf_write (file, param, strlen_param);
429 lf_printf (file, ")");
430 }
431 }
432 else if (strncmp (fmt, "%lx<", 4) == 0)
433 /* simple hex */
434 {
435 if (pass == 1)
436 lf_printf (file, "%%lx");
437 else
438 {
439 lf_printf (file, "(unsigned long) ");
440 lf_write (file, param, strlen_param);
441 }
442 }
443 else if (strncmp (fmt, "%#lx<", 5) == 0)
444 /* simple hex with 0x prefix */
445 {
446 if (pass == 1)
447 lf_printf (file, "%%#lx");
448 else
449 {
450 lf_printf (file, "(unsigned long) ");
451 lf_write (file, param, strlen_param);
452 }
453 }
454 else if (strncmp (fmt, "%08lx<", 6) == 0)
455 /* simple hex */
456 {
457 if (pass == 1)
458 lf_printf (file, "%%08lx");
459 else
460 {
461 lf_printf (file, "(unsigned long) ");
462 lf_write (file, param, strlen_param);
463 }
464 }
465 else
466 error (assembler->line, "Unknown assembler string format\n");
467 }
468 else
469 {
470 if (pass == 1)
471 lf_putchr (file, chp[0]);
472 chp += 1;
473 }
474 }
475 }
476 lf_printf (file, ");\n");
477 }
478
479
480 void
481 print_itrace (lf *file, insn_entry * insn, int idecode)
482 {
483 /* NB: Here we escape each EOLN. This is so that the the compiler
484 treats a trace function call as a single line. Consequently any
485 errors in the line are refered back to the same igen assembler
486 source line */
487 const char *phase = (idecode) ? "DECODE" : "INSN";
488 lf_printf (file, "\n");
489 lf_indent_suppress (file);
490 lf_printf (file, "#if defined (WITH_TRACE)\n");
491 lf_printf (file, "/* generate a trace prefix if any tracing enabled */\n");
492 lf_printf (file, "if (TRACE_ANY_P (CPU))\n");
493 lf_printf (file, " {\n");
494 lf_indent (file, +4);
495 {
496 if (insn->mnemonics != NULL)
497 {
498 insn_mnemonic_entry *assembler = insn->mnemonics;
499 int is_first = 1;
500 do
501 {
502 if (assembler->condition != NULL)
503 {
504 int indent;
505 lf_printf (file, "%sif (%s)\n",
506 is_first ? "" : "else ", assembler->condition);
507 lf_indent (file, +2);
508 lf_print__line_ref (file, assembler->line);
509 indent = print_itrace_prefix (file);
510 print_itrace_format (file, assembler);
511 lf_print__internal_ref (file);
512 lf_indent (file, -indent);
513 lf_indent (file, -2);
514 if (assembler->next == NULL)
515 error (assembler->line,
516 "Missing final unconditional assembler\n");
517 }
518 else
519 {
520 int indent;
521 if (!is_first)
522 {
523 lf_printf (file, "else\n");
524 lf_indent (file, +2);
525 }
526 lf_print__line_ref (file, assembler->line);
527 indent = print_itrace_prefix (file);
528 print_itrace_format (file, assembler);
529 lf_print__internal_ref (file);
530 lf_indent (file, -indent);
531 if (!is_first)
532 lf_indent (file, -2);
533 if (assembler->next != NULL)
534 error (assembler->line,
535 "Unconditional assembler is not last\n");
536 }
537 is_first = 0;
538 assembler = assembler->next;
539 }
540 while (assembler != NULL);
541 }
542 else
543 {
544 int indent;
545 lf_indent (file, +2);
546 lf_print__line_ref (file, insn->line);
547 indent = print_itrace_prefix (file);
548 lf_printf (file, "%%s\", \\\n");
549 lf_printf (file, "itable[MY_INDEX].name);\n");
550 lf_print__internal_ref (file);
551 lf_indent (file, -indent);
552 lf_indent (file, -2);
553 }
554 lf_printf (file, "/* trace the instruction execution if enabled */\n");
555 lf_printf (file, "if (TRACE_%s_P (CPU))\n", phase);
556 lf_printf (file,
557 " trace_generic (SD, CPU, TRACE_%s_IDX, \" %%s\", itable[MY_INDEX].name);\n",
558 phase);
559 }
560 lf_indent (file, -4);
561 lf_printf (file, " }\n");
562 lf_indent_suppress (file);
563 lf_printf (file, "#endif\n");
564 }
565
566
567 void
568 print_sim_engine_abort (lf *file, const char *message)
569 {
570 lf_printf (file, "sim_engine_abort (SD, CPU, cia, ");
571 lf_printf (file, "\"%s\"", message);
572 lf_printf (file, ");\n");
573 }
574
575
576 void
577 print_include (lf *file, igen_module module)
578 {
579 lf_printf (file, "#include \"%s%s.h\"\n", module.prefix.l, module.suffix.l);
580 }
581
582 void
583 print_include_inline (lf *file, igen_module module)
584 {
585 lf_printf (file, "#if C_REVEALS_MODULE_P (%s_INLINE)\n", module.suffix.u);
586 lf_printf (file, "#include \"%s%s.c\"\n", module.prefix.l, module.suffix.l);
587 lf_printf (file, "#else\n");
588 print_include (file, module);
589 lf_printf (file, "#endif\n");
590 lf_printf (file, "\n");
591 }
592
593 void
594 print_includes (lf *file)
595 {
596 lf_printf (file, "\n");
597 lf_printf (file, "#include \"sim-inline.c\"\n");
598 lf_printf (file, "\n");
599 print_include_inline (file, options.module.itable);
600 print_include_inline (file, options.module.idecode);
601 print_include_inline (file, options.module.support);
602 }
603
604
605 /****************************************************************/
606
607
608 static void
609 gen_semantics_h (lf *file, insn_list *semantics, int max_nr_words)
610 {
611 int word_nr;
612 insn_list *semantic;
613 for (word_nr = -1; word_nr <= max_nr_words; word_nr++)
614 {
615 lf_printf (file, "typedef ");
616 print_semantic_function_type (file);
617 lf_printf (file, " %sidecode_semantic", options.module.global.prefix.l);
618 if (word_nr >= 0)
619 lf_printf (file, "_%d", word_nr);
620 lf_printf (file, "\n(");
621 lf_indent (file, +1);
622 print_semantic_function_formal (file, word_nr);
623 lf_indent (file, -1);
624 lf_printf (file, ");\n");
625 lf_printf (file, "\n");
626 }
627 switch (options.gen.code)
628 {
629 case generate_calls:
630 for (semantic = semantics; semantic != NULL; semantic = semantic->next)
631 {
632 /* Ignore any special/internal instructions */
633 if (semantic->insn->nr_words == 0)
634 continue;
635 print_semantic_declaration (file,
636 semantic->insn,
637 semantic->expanded_bits,
638 semantic->opcodes,
639 semantic->nr_prefetched_words);
640 }
641 break;
642 case generate_jumps:
643 lf_print__this_file_is_empty (file, "generating jumps");
644 break;
645 }
646 }
647
648
649 static void
650 gen_semantics_c (lf *file, insn_list *semantics, cache_entry *cache_rules)
651 {
652 if (options.gen.code == generate_calls)
653 {
654 insn_list *semantic;
655 print_includes (file);
656 print_include (file, options.module.semantics);
657 lf_printf (file, "\n");
658
659 for (semantic = semantics; semantic != NULL; semantic = semantic->next)
660 {
661 /* Ignore any special/internal instructions */
662 if (semantic->insn->nr_words == 0)
663 continue;
664 print_semantic_definition (file,
665 semantic->insn,
666 semantic->expanded_bits,
667 semantic->opcodes,
668 cache_rules,
669 semantic->nr_prefetched_words);
670 }
671 }
672 else
673 {
674 lf_print__this_file_is_empty (file, "generating jump engine");
675 }
676 }
677
678
679 /****************************************************************/
680
681
682 static void
683 gen_icache_h (lf *file,
684 insn_list *semantic,
685 function_entry * functions, int max_nr_words)
686 {
687 int word_nr;
688 for (word_nr = 0; word_nr <= max_nr_words; word_nr++)
689 {
690 lf_printf (file, "typedef ");
691 print_icache_function_type (file);
692 lf_printf (file, " %sidecode_icache_%d\n(",
693 options.module.global.prefix.l, word_nr);
694 print_icache_function_formal (file, word_nr);
695 lf_printf (file, ");\n");
696 lf_printf (file, "\n");
697 }
698 if (options.gen.code == generate_calls && options.gen.icache)
699 {
700 function_entry_traverse (file, functions,
701 print_icache_internal_function_declaration,
702 NULL);
703 while (semantic != NULL)
704 {
705 print_icache_declaration (file,
706 semantic->insn,
707 semantic->expanded_bits,
708 semantic->opcodes,
709 semantic->nr_prefetched_words);
710 semantic = semantic->next;
711 }
712 }
713 else
714 {
715 lf_print__this_file_is_empty (file, "generating jump engine");
716 }
717 }
718
719 static void
720 gen_icache_c (lf *file,
721 insn_list *semantic,
722 function_entry * functions, cache_entry *cache_rules)
723 {
724 /* output `internal' invalid/floating-point unavailable functions
725 where needed */
726 if (options.gen.code == generate_calls && options.gen.icache)
727 {
728 lf_printf (file, "\n");
729 lf_printf (file, "#include \"cpu.h\"\n");
730 lf_printf (file, "#include \"idecode.h\"\n");
731 lf_printf (file, "#include \"semantics.h\"\n");
732 lf_printf (file, "#include \"icache.h\"\n");
733 lf_printf (file, "#include \"support.h\"\n");
734 lf_printf (file, "\n");
735 function_entry_traverse (file, functions,
736 print_icache_internal_function_definition,
737 NULL);
738 lf_printf (file, "\n");
739 while (semantic != NULL)
740 {
741 print_icache_definition (file,
742 semantic->insn,
743 semantic->expanded_bits,
744 semantic->opcodes,
745 cache_rules,
746 semantic->nr_prefetched_words);
747 semantic = semantic->next;
748 }
749 }
750 else
751 {
752 lf_print__this_file_is_empty (file, "generating jump engine");
753 }
754 }
755
756
757 /****************************************************************/
758
759
760 static void
761 gen_idecode_h (lf *file,
762 gen_table *gen, insn_table *insns, cache_entry *cache_rules)
763 {
764 lf_printf (file, "typedef unsigned%d %sinstruction_word;\n",
765 options.insn_bit_size, options.module.global.prefix.l);
766 if (options.gen.delayed_branch)
767 {
768 lf_printf (file, "typedef struct _%sinstruction_address {\n",
769 options.module.global.prefix.l);
770 lf_printf (file, " address_word ip; /* instruction pointer */\n");
771 lf_printf (file, " address_word dp; /* delayed-slot pointer */\n");
772 lf_printf (file, "} %sinstruction_address;\n",
773 options.module.global.prefix.l);
774 }
775 else
776 {
777 lf_printf (file, "typedef address_word %sinstruction_address;\n",
778 options.module.global.prefix.l);
779
780 }
781 if (options.gen.nia == nia_is_invalid
782 && strlen (options.module.global.prefix.u) > 0)
783 {
784 lf_indent_suppress (file);
785 lf_printf (file, "#define %sINVALID_INSTRUCTION_ADDRESS ",
786 options.module.global.prefix.u);
787 lf_printf (file, "INVALID_INSTRUCTION_ADDRESS\n");
788 }
789 lf_printf (file, "\n");
790 print_icache_struct (file, insns, cache_rules);
791 lf_printf (file, "\n");
792 if (options.gen.icache)
793 {
794 ERROR ("FIXME - idecode with icache suffering from bit-rot");
795 }
796 else
797 {
798 gen_list *entry;
799 for (entry = gen->tables; entry != NULL; entry = entry->next)
800 {
801 print_idecode_issue_function_header (file,
802 (options.gen.multi_sim
803 ? entry->model->name
804 : NULL),
805 is_function_declaration,
806 1 /*ALWAYS ONE WORD */ );
807 }
808 if (options.gen.multi_sim)
809 {
810 print_idecode_issue_function_header (file,
811 NULL,
812 is_function_variable,
813 1 /*ALWAYS ONE WORD */ );
814 }
815 }
816 }
817
818
819 static void
820 gen_idecode_c (lf *file,
821 gen_table *gen, insn_table *isa, cache_entry *cache_rules)
822 {
823 /* the intro */
824 print_includes (file);
825 print_include_inline (file, options.module.semantics);
826 lf_printf (file, "\n");
827
828 print_idecode_globals (file);
829 lf_printf (file, "\n");
830
831 switch (options.gen.code)
832 {
833 case generate_calls:
834 {
835 gen_list *entry;
836 for (entry = gen->tables; entry != NULL; entry = entry->next)
837 {
838 print_idecode_lookups (file, entry->table, cache_rules);
839
840 /* output the main idecode routine */
841 if (!options.gen.icache)
842 {
843 print_idecode_issue_function_header (file,
844 (options.gen.multi_sim
845 ? entry->model->name
846 : NULL),
847 1 /*is definition */ ,
848 1 /*ALWAYS ONE WORD */ );
849 lf_printf (file, "{\n");
850 lf_indent (file, +2);
851 lf_printf (file, "%sinstruction_address nia;\n",
852 options.module.global.prefix.l);
853 print_idecode_body (file, entry->table, "nia =");
854 lf_printf (file, "return nia;");
855 lf_indent (file, -2);
856 lf_printf (file, "}\n");
857 }
858 }
859 break;
860 }
861 case generate_jumps:
862 {
863 lf_print__this_file_is_empty (file, "generating a jump engine");
864 break;
865 }
866 }
867 }
868
869
870 /****************************************************************/
871
872
873 static void
874 gen_run_c (lf *file, gen_table *gen)
875 {
876 gen_list *entry;
877 lf_printf (file, "#include \"sim-main.h\"\n");
878 lf_printf (file, "#include \"engine.h\"\n");
879 lf_printf (file, "#include \"idecode.h\"\n");
880 lf_printf (file, "#include \"bfd.h\"\n");
881 lf_printf (file, "\n");
882
883 if (options.gen.multi_sim)
884 {
885 print_idecode_issue_function_header (file, NULL, is_function_variable,
886 1);
887 lf_printf (file, "\n");
888 print_engine_run_function_header (file, NULL, is_function_variable);
889 lf_printf (file, "\n");
890 }
891
892 lf_printf (file, "void\n");
893 lf_printf (file, "sim_engine_run (SIM_DESC sd,\n");
894 lf_printf (file, " int next_cpu_nr,\n");
895 lf_printf (file, " int nr_cpus,\n");
896 lf_printf (file, " int siggnal)\n");
897 lf_printf (file, "{\n");
898 lf_indent (file, +2);
899 if (options.gen.multi_sim)
900 {
901 lf_printf (file, "int mach;\n");
902 lf_printf (file, "if (STATE_ARCHITECTURE (sd) == NULL)\n");
903 lf_printf (file, " mach = 0;\n");
904 lf_printf (file, "else\n");
905 lf_printf (file, " mach = STATE_ARCHITECTURE (sd)->mach;\n");
906 lf_printf (file, "switch (mach)\n");
907 lf_printf (file, " {\n");
908 lf_indent (file, +2);
909 for (entry = gen->tables; entry != NULL; entry = entry->next)
910 {
911 if (options.gen.default_model != NULL
912 && (strcmp (entry->model->name, options.gen.default_model) == 0
913 || strcmp (entry->model->full_name,
914 options.gen.default_model) == 0))
915 lf_printf (file, "default:\n");
916 lf_printf (file, "case bfd_mach_%s:\n", entry->model->full_name);
917 lf_indent (file, +2);
918 print_function_name (file, "issue", NULL, /* format name */
919 NULL, /* NO processor */
920 NULL, /* expanded bits */
921 function_name_prefix_idecode);
922 lf_printf (file, " = ");
923 print_function_name (file, "issue", NULL, /* format name */
924 entry->model->name, NULL, /* expanded bits */
925 function_name_prefix_idecode);
926 lf_printf (file, ";\n");
927 print_function_name (file, "run", NULL, /* format name */
928 NULL, /* NO processor */
929 NULL, /* expanded bits */
930 function_name_prefix_engine);
931 lf_printf (file, " = ");
932 print_function_name (file, "run", NULL, /* format name */
933 entry->model->name, NULL, /* expanded bits */
934 function_name_prefix_engine);
935 lf_printf (file, ";\n");
936 lf_printf (file, "break;\n");
937 lf_indent (file, -2);
938 }
939 if (options.gen.default_model == NULL)
940 {
941 lf_printf (file, "default:\n");
942 lf_indent (file, +2);
943 lf_printf (file, "sim_engine_abort (sd, NULL, NULL_CIA,\n");
944 lf_printf (file,
945 " \"sim_engine_run - unknown machine\");\n");
946 lf_printf (file, "break;\n");
947 lf_indent (file, -2);
948 }
949 lf_indent (file, -2);
950 lf_printf (file, " }\n");
951 }
952 print_function_name (file, "run", NULL, /* format name */
953 NULL, /* NO processor */
954 NULL, /* expanded bits */
955 function_name_prefix_engine);
956 lf_printf (file, " (sd, next_cpu_nr, nr_cpus, siggnal);\n");
957 lf_indent (file, -2);
958 lf_printf (file, "}\n");
959 }
960
961 /****************************************************************/
962
963 static gen_table *
964 do_gen (insn_table *isa, decode_table *decode_rules)
965 {
966 gen_table *gen;
967 if (decode_rules == NULL)
968 error (NULL, "Must specify a decode table\n");
969 if (isa == NULL)
970 error (NULL, "Must specify an instruction table\n");
971 if (decode_table_max_word_nr (decode_rules) > 0)
972 options.gen.multi_word = decode_table_max_word_nr (decode_rules);
973 gen = make_gen_tables (isa, decode_rules);
974 gen_tables_expand_insns (gen);
975 gen_tables_expand_semantics (gen);
976 return gen;
977 }
978
979 /****************************************************************/
980
981 igen_options options;
982
983 int
984 main (int argc, char **argv, char **envp)
985 {
986 cache_entry *cache_rules = NULL;
987 lf_file_references file_references = lf_include_references;
988 decode_table *decode_rules = NULL;
989 insn_table *isa = NULL;
990 gen_table *gen = NULL;
991 char *real_file_name = NULL;
992 int is_header = 0;
993 int ch;
994 lf *standard_out =
995 lf_open ("-", "stdout", lf_omit_references, lf_is_text, "igen");
996
997 INIT_OPTIONS ();
998
999 if (argc == 1)
1000 {
1001 printf ("Usage:\n");
1002 printf ("\n");
1003 printf (" igen <config-opts> ... <input-opts>... <output-opts>...\n");
1004 printf ("\n");
1005 printf ("Config options:\n");
1006 printf ("\n");
1007 printf (" -B <bit-size>\n");
1008 printf ("\t Set the number of bits in an instruction (deprecated).\n");
1009 printf
1010 ("\t This option can now be set directly in the instruction table.\n");
1011 printf ("\n");
1012 printf (" -D <data-structure>\n");
1013 printf
1014 ("\t Dump the specified data structure to stdout. Valid structures include:\n");
1015 printf
1016 ("\t processor-names - list the names of all the processors (models)\n");
1017 printf ("\n");
1018 printf (" -F <filter-list>\n");
1019 printf
1020 ("\t Filter out any instructions with a non-empty flags field that contains\n");
1021 printf ("\t a flag not listed in the <filter-list>.\n");
1022 printf ("\n");
1023 printf (" -H <high-bit>\n");
1024 printf
1025 ("\t Set the number of the high (most significant) instruction bit (deprecated).\n");
1026 printf
1027 ("\t This option can now be set directly in the instruction table.\n");
1028 printf ("\n");
1029 printf (" -I <directory>\n");
1030 printf
1031 ("\t Add <directory> to the list of directories searched when opening a file\n");
1032 printf ("\n");
1033 printf (" -M <model-list>\n");
1034 printf
1035 ("\t Filter out any instructions that do not support at least one of the listed\n");
1036 printf
1037 ("\t models (An instructions with no model information is considered to support\n");
1038 printf ("\t all models.).\n");
1039 printf ("\n");
1040 printf (" -N <nr-cpus>\n");
1041 printf ("\t Generate a simulator supporting <nr-cpus>\n");
1042 printf
1043 ("\t Specify `-N 0' to disable generation of the SMP. Specifying `-N 1' will\n");
1044 printf
1045 ("\t still generate an SMP enabled simulator but will only support one CPU.\n");
1046 printf ("\n");
1047 printf (" -T <mechanism>\n");
1048 printf
1049 ("\t Override the decode mechanism specified by the decode rules\n");
1050 printf ("\n");
1051 printf (" -P <prefix>\n");
1052 printf
1053 ("\t Prepend global names (except itable) with the string <prefix>.\n");
1054 printf
1055 ("\t Specify -P <module>=<prefix> to set a specific <module>'s prefix.\n");
1056 printf ("\n");
1057 printf (" -S <suffix>\n");
1058 printf
1059 ("\t Replace a global name (suffix) (except itable) with the string <suffix>.\n");
1060 printf
1061 ("\t Specify -S <module>=<suffix> to change a specific <module>'s name (suffix).\n");
1062 printf ("\n");
1063 printf (" -Werror\n");
1064 printf ("\t Make warnings errors\n");
1065 printf (" -Wnodiscard\n");
1066 printf
1067 ("\t Suppress warnings about discarded functions and instructions\n");
1068 printf (" -Wnowidth\n");
1069 printf
1070 ("\t Suppress warnings about instructions with invalid widths\n");
1071 printf (" -Wnounimplemented\n");
1072 printf ("\t Suppress warnings about unimplemented instructions\n");
1073 printf ("\n");
1074 printf (" -G [!]<gen-option>\n");
1075 printf ("\t Any of the following options:\n");
1076 printf ("\n");
1077 printf
1078 ("\t decode-duplicate - Override the decode rules, forcing the duplication of\n");
1079 printf ("\t semantic functions\n");
1080 printf
1081 ("\t decode-combine - Combine any duplicated entries within a table\n");
1082 printf
1083 ("\t decode-zero-reserved - Override the decode rules, forcing reserved bits to be\n");
1084 printf ("\t treated as zero.\n");
1085 printf
1086 ("\t decode-switch-is-goto - Overfide the padded-switch code type as a goto-switch\n");
1087 printf ("\n");
1088 printf
1089 ("\t gen-conditional-issue - conditionally issue each instruction\n");
1090 printf
1091 ("\t gen-delayed-branch - need both cia and nia passed around\n");
1092 printf
1093 ("\t gen-direct-access - use #defines to directly access values\n");
1094 printf
1095 ("\t gen-zero-r<N> - arch assumes GPR(<N>) == 0, keep it that way\n");
1096 printf
1097 ("\t gen-icache[=<N> - generate an instruction cracking cache of size <N>\n");
1098 printf ("\t Default size is %d\n",
1099 options.gen.icache_size);
1100 printf
1101 ("\t gen-insn-in-icache - save original instruction when cracking\n");
1102 printf
1103 ("\t gen-multi-sim[=MODEL] - generate multiple simulators - one per model\n");
1104 printf
1105 ("\t If specified MODEL is made the default architecture.\n");
1106 printf
1107 ("\t By default, a single simulator that will\n");
1108 printf
1109 ("\t execute any instruction is generated\n");
1110 printf
1111 ("\t gen-multi-word - generate code allowing for multi-word insns\n");
1112 printf
1113 ("\t gen-semantic-icache - include semantic code in cracking functions\n");
1114 printf
1115 ("\t gen-slot-verification - perform slot verification as part of decode\n");
1116 printf ("\t gen-nia-invalid - NIA defaults to nia_invalid\n");
1117 printf ("\t gen-nia-void - do not compute/return NIA\n");
1118 printf ("\n");
1119 printf
1120 ("\t trace-combine - report combined entries a rule application\n");
1121 printf
1122 ("\t trace-entries - report entries after a rules application\n");
1123 printf ("\t trace-rule-rejection - report each rule as rejected\n");
1124 printf ("\t trace-rule-selection - report each rule as selected\n");
1125 printf
1126 ("\t trace-insn-insertion - report each instruction as it is inserted into a decode table\n");
1127 printf
1128 ("\t trace-rule-expansion - report each instruction as it is expanded (before insertion into a decode table)\n");
1129 printf ("\t trace-all - enable all trace options\n");
1130 printf ("\n");
1131 printf
1132 ("\t field-widths - instruction formats specify widths (deprecated)\n");
1133 printf
1134 ("\t By default, an instruction format specifies bit\n");
1135 printf ("\t positions\n");
1136 printf
1137 ("\t This option can now be set directly in the\n");
1138 printf ("\t instruction table\n");
1139 printf
1140 ("\t jumps - use jumps instead of function calls\n");
1141 printf
1142 ("\t omit-line-numbers - do not include line number information in the output\n");
1143 printf ("\n");
1144 printf ("Input options:\n");
1145 printf ("\n");
1146 printf (" -k <cache-rules> (deprecated)\n");
1147 printf (" -o <decode-rules>\n");
1148 printf (" -i <instruction-table>\n");
1149 printf ("\n");
1150 printf ("Output options:\n");
1151 printf ("\n");
1152 printf (" -x Perform expansion (required)\n");
1153 printf
1154 (" -n <real-name> Specify the real name of the next output file\n");
1155 printf
1156 (" -h Generate the header (.h) file rather than the body (.c)\n");
1157 printf (" -c <output-file> output icache\n");
1158 printf (" -d <output-file> output idecode\n");
1159 printf (" -e <output-file> output engine\n");
1160 printf (" -f <output-file> output support functions\n");
1161 printf (" -m <output-file> output model\n");
1162 printf (" -r <output-file> output multi-sim run\n");
1163 printf (" -s <output-file> output schematic\n");
1164 printf (" -t <output-file> output itable\n");
1165 }
1166
1167 while ((ch = getopt (argc, argv,
1168 "B:D:F:G:H:I:M:N:P:T:W:o:k:i:n:hc:d:e:m:r:s:t:f:x"))
1169 != -1)
1170 {
1171 fprintf (stderr, " -%c ", ch);
1172 if (optarg)
1173 fprintf (stderr, "%s ", optarg);
1174 fprintf (stderr, "\\\n");
1175
1176 switch (ch)
1177 {
1178
1179 case 'M':
1180 filter_parse (&options.model_filter, optarg);
1181 break;
1182
1183 case 'D':
1184 if (strcmp (optarg, "processor-names"))
1185 {
1186 char *processor;
1187 for (processor = filter_next (options.model_filter, "");
1188 processor != NULL;
1189 processor = filter_next (options.model_filter, processor))
1190 lf_printf (standard_out, "%s\n", processor);
1191 }
1192 else
1193 error (NULL, "Unknown data structure %s, not dumped\n", optarg);
1194 break;
1195
1196 case 'F':
1197 filter_parse (&options.flags_filter, optarg);
1198 break;
1199
1200 case 'I':
1201 {
1202 table_include **dir = &options.include;
1203 while ((*dir) != NULL)
1204 dir = &(*dir)->next;
1205 (*dir) = ZALLOC (table_include);
1206 (*dir)->dir = strdup (optarg);
1207 }
1208 break;
1209
1210 case 'B':
1211 options.insn_bit_size = a2i (optarg);
1212 if (options.insn_bit_size <= 0
1213 || options.insn_bit_size > max_insn_bit_size)
1214 {
1215 error (NULL, "Instruction bitsize must be in range 1..%d\n",
1216 max_insn_bit_size);
1217 }
1218 if (options.hi_bit_nr != options.insn_bit_size - 1
1219 && options.hi_bit_nr != 0)
1220 {
1221 error (NULL, "Conflict betweem hi-bit-nr and insn-bit-size\n");
1222 }
1223 break;
1224
1225 case 'H':
1226 options.hi_bit_nr = a2i (optarg);
1227 if (options.hi_bit_nr != options.insn_bit_size - 1
1228 && options.hi_bit_nr != 0)
1229 {
1230 error (NULL, "Conflict between hi-bit-nr and insn-bit-size\n");
1231 }
1232 break;
1233
1234 case 'N':
1235 options.gen.smp = a2i (optarg);
1236 break;
1237
1238 case 'P':
1239 case 'S':
1240 {
1241 igen_module *names;
1242 igen_name *name;
1243 char *chp;
1244 chp = strchr (optarg, '=');
1245 if (chp == NULL)
1246 {
1247 names = &options.module.global;
1248 chp = optarg;
1249 }
1250 else
1251 {
1252 chp = chp + 1; /* skip `=' */
1253 names = NULL;
1254 if (strncmp (optarg, "global=", chp - optarg) == 0)
1255 {
1256 names = &options.module.global;
1257 }
1258 if (strncmp (optarg, "engine=", chp - optarg) == 0)
1259 {
1260 names = &options.module.engine;
1261 }
1262 if (strncmp (optarg, "icache=", chp - optarg) == 0)
1263 {
1264 names = &options.module.icache;
1265 }
1266 if (strncmp (optarg, "idecode=", chp - optarg) == 0)
1267 {
1268 names = &options.module.idecode;
1269 }
1270 if (strncmp (optarg, "itable=", chp - optarg) == 0)
1271 {
1272 names = &options.module.itable;
1273 }
1274 if (strncmp (optarg, "semantics=", chp - optarg) == 0)
1275 {
1276 names = &options.module.semantics;
1277 }
1278 if (strncmp (optarg, "support=", chp - optarg) == 0)
1279 {
1280 names = &options.module.support;
1281 }
1282 if (names == NULL)
1283 {
1284 error (NULL, "Prefix `%s' unreconized\n", optarg);
1285 }
1286 }
1287 switch (ch)
1288 {
1289 case 'P':
1290 name = &names->prefix;
1291 break;
1292 case 'S':
1293 name = &names->suffix;
1294 break;
1295 default:
1296 abort (); /* Bad switch. */
1297 }
1298 name->u = strdup (chp);
1299 name->l = strdup (chp);
1300 chp = name->u;
1301 while (*chp)
1302 {
1303 if (islower (*chp))
1304 *chp = toupper (*chp);
1305 chp++;
1306 }
1307 if (name == &options.module.global.prefix)
1308 {
1309 options.module.engine.prefix = options.module.global.prefix;
1310 options.module.icache.prefix = options.module.global.prefix;
1311 options.module.idecode.prefix = options.module.global.prefix;
1312 /* options.module.itable.prefix = options.module.global.prefix; */
1313 options.module.semantics.prefix =
1314 options.module.global.prefix;
1315 options.module.support.prefix = options.module.global.prefix;
1316 }
1317 if (name == &options.module.global.suffix)
1318 {
1319 options.module.engine.suffix = options.module.global.suffix;
1320 options.module.icache.suffix = options.module.global.suffix;
1321 options.module.idecode.suffix = options.module.global.suffix;
1322 /* options.module.itable.suffix = options.module.global.suffix; */
1323 options.module.semantics.suffix =
1324 options.module.global.suffix;
1325 options.module.support.suffix = options.module.global.suffix;
1326 }
1327 break;
1328 }
1329
1330 case 'W':
1331 {
1332 if (strcmp (optarg, "error") == 0)
1333 options.warning = error;
1334 else if (strcmp (optarg, "nodiscard") == 0)
1335 options.warn.discard = 0;
1336 else if (strcmp (optarg, "discard") == 0)
1337 options.warn.discard = 1;
1338 else if (strcmp (optarg, "nowidth") == 0)
1339 options.warn.width = 0;
1340 else if (strcmp (optarg, "width") == 0)
1341 options.warn.width = 1;
1342 else if (strcmp (optarg, "nounimplemented") == 0)
1343 options.warn.unimplemented = 0;
1344 else if (strcmp (optarg, "unimplemented") == 0)
1345 options.warn.unimplemented = 1;
1346 else
1347 error (NULL, "Unknown -W argument `%s'\n", optarg);
1348 break;
1349 }
1350
1351
1352 case 'G':
1353 {
1354 int enable_p;
1355 char *argp;
1356 if (strncmp (optarg, "no-", strlen ("no-")) == 0)
1357 {
1358 argp = optarg + strlen ("no-");
1359 enable_p = 0;
1360 }
1361 else if (strncmp (optarg, "!", strlen ("!")) == 0)
1362 {
1363 argp = optarg + strlen ("no-");
1364 enable_p = 0;
1365 }
1366 else
1367 {
1368 argp = optarg;
1369 enable_p = 1;
1370 }
1371 if (strcmp (argp, "decode-duplicate") == 0)
1372 {
1373 options.decode.duplicate = enable_p;
1374 }
1375 else if (strcmp (argp, "decode-combine") == 0)
1376 {
1377 options.decode.combine = enable_p;
1378 }
1379 else if (strcmp (argp, "decode-zero-reserved") == 0)
1380 {
1381 options.decode.zero_reserved = enable_p;
1382 }
1383
1384 else if (strcmp (argp, "gen-conditional-issue") == 0)
1385 {
1386 options.gen.conditional_issue = enable_p;
1387 }
1388 else if (strcmp (argp, "conditional-issue") == 0)
1389 {
1390 options.gen.conditional_issue = enable_p;
1391 options.warning (NULL,
1392 "Option conditional-issue replaced by gen-conditional-issue\n");
1393 }
1394 else if (strcmp (argp, "gen-delayed-branch") == 0)
1395 {
1396 options.gen.delayed_branch = enable_p;
1397 }
1398 else if (strcmp (argp, "delayed-branch") == 0)
1399 {
1400 options.gen.delayed_branch = enable_p;
1401 options.warning (NULL,
1402 "Option delayed-branch replaced by gen-delayed-branch\n");
1403 }
1404 else if (strcmp (argp, "gen-direct-access") == 0)
1405 {
1406 options.gen.direct_access = enable_p;
1407 }
1408 else if (strcmp (argp, "direct-access") == 0)
1409 {
1410 options.gen.direct_access = enable_p;
1411 options.warning (NULL,
1412 "Option direct-access replaced by gen-direct-access\n");
1413 }
1414 else if (strncmp (argp, "gen-zero-r", strlen ("gen-zero-r")) == 0)
1415 {
1416 options.gen.zero_reg = enable_p;
1417 options.gen.zero_reg_nr = atoi (argp + strlen ("gen-zero-r"));
1418 }
1419 else if (strncmp (argp, "zero-r", strlen ("zero-r")) == 0)
1420 {
1421 options.gen.zero_reg = enable_p;
1422 options.gen.zero_reg_nr = atoi (argp + strlen ("zero-r"));
1423 options.warning (NULL,
1424 "Option zero-r<N> replaced by gen-zero-r<N>\n");
1425 }
1426 else if (strncmp (argp, "gen-icache", strlen ("gen-icache")) == 0)
1427 {
1428 switch (argp[strlen ("gen-icache")])
1429 {
1430 case '=':
1431 options.gen.icache_size =
1432 atoi (argp + strlen ("gen-icache") + 1);
1433 options.gen.icache = enable_p;
1434 break;
1435 case '\0':
1436 options.gen.icache = enable_p;
1437 break;
1438 default:
1439 error (NULL,
1440 "Expecting -Ggen-icache or -Ggen-icache=<N>\n");
1441 }
1442 }
1443 else if (strcmp (argp, "gen-insn-in-icache") == 0)
1444 {
1445 options.gen.insn_in_icache = enable_p;
1446 }
1447 else if (strncmp (argp, "gen-multi-sim", strlen ("gen-multi-sim"))
1448 == 0)
1449 {
1450 char *arg = &argp[strlen ("gen-multi-sim")];
1451 switch (arg[0])
1452 {
1453 case '=':
1454 options.gen.multi_sim = enable_p;
1455 options.gen.default_model = arg + 1;
1456 if (!filter_is_member
1457 (options.model_filter, options.gen.default_model))
1458 error (NULL, "multi-sim model %s unknown\n",
1459 options.gen.default_model);
1460 break;
1461 case '\0':
1462 options.gen.multi_sim = enable_p;
1463 options.gen.default_model = NULL;
1464 break;
1465 default:
1466 error (NULL,
1467 "Expecting -Ggen-multi-sim or -Ggen-multi-sim=<MODEL>\n");
1468 break;
1469 }
1470 }
1471 else if (strcmp (argp, "gen-multi-word") == 0)
1472 {
1473 options.gen.multi_word = enable_p;
1474 }
1475 else if (strcmp (argp, "gen-semantic-icache") == 0)
1476 {
1477 options.gen.semantic_icache = enable_p;
1478 }
1479 else if (strcmp (argp, "gen-slot-verification") == 0)
1480 {
1481 options.gen.slot_verification = enable_p;
1482 }
1483 else if (strcmp (argp, "verify-slot") == 0)
1484 {
1485 options.gen.slot_verification = enable_p;
1486 options.warning (NULL,
1487 "Option verify-slot replaced by gen-slot-verification\n");
1488 }
1489 else if (strcmp (argp, "gen-nia-invalid") == 0)
1490 {
1491 options.gen.nia = nia_is_invalid;
1492 }
1493 else if (strcmp (argp, "default-nia-minus-one") == 0)
1494 {
1495 options.gen.nia = nia_is_invalid;
1496 options.warning (NULL,
1497 "Option default-nia-minus-one replaced by gen-nia-invalid\n");
1498 }
1499 else if (strcmp (argp, "gen-nia-void") == 0)
1500 {
1501 options.gen.nia = nia_is_void;
1502 }
1503 else if (strcmp (argp, "trace-all") == 0)
1504 {
1505 memset (&options.trace, enable_p, sizeof (options.trace));
1506 }
1507 else if (strcmp (argp, "trace-combine") == 0)
1508 {
1509 options.trace.combine = enable_p;
1510 }
1511 else if (strcmp (argp, "trace-entries") == 0)
1512 {
1513 options.trace.entries = enable_p;
1514 }
1515 else if (strcmp (argp, "trace-rule-rejection") == 0)
1516 {
1517 options.trace.rule_rejection = enable_p;
1518 }
1519 else if (strcmp (argp, "trace-rule-selection") == 0)
1520 {
1521 options.trace.rule_selection = enable_p;
1522 }
1523 else if (strcmp (argp, "trace-insn-insertion") == 0)
1524 {
1525 options.trace.insn_insertion = enable_p;
1526 }
1527 else if (strcmp (argp, "trace-insn-expansion") == 0)
1528 {
1529 options.trace.insn_expansion = enable_p;
1530 }
1531 else if (strcmp (argp, "jumps") == 0)
1532 {
1533 options.gen.code = generate_jumps;
1534 }
1535 else if (strcmp (argp, "field-widths") == 0)
1536 {
1537 options.insn_specifying_widths = enable_p;
1538 }
1539 else if (strcmp (argp, "omit-line-numbers") == 0)
1540 {
1541 file_references = lf_omit_references;
1542 }
1543 else
1544 {
1545 error (NULL, "Unknown option %s\n", optarg);
1546 }
1547 break;
1548 }
1549
1550 case 'i':
1551 isa = load_insn_table (optarg, cache_rules);
1552 if (isa->illegal_insn == NULL)
1553 error (NULL, "illegal-instruction missing from insn table\n");
1554 break;
1555
1556 case 'x':
1557 gen = do_gen (isa, decode_rules);
1558 break;
1559
1560 case 'o':
1561 decode_rules = load_decode_table (optarg);
1562 break;
1563
1564 case 'k':
1565 if (isa != NULL)
1566 error (NULL, "Cache file must appear before the insn file\n");
1567 cache_rules = load_cache_table (optarg);
1568 break;
1569
1570 case 'n':
1571 real_file_name = strdup (optarg);
1572 break;
1573
1574 case 'h':
1575 is_header = 1;
1576 break;
1577
1578 case 'c':
1579 case 'd':
1580 case 'e':
1581 case 'f':
1582 case 'm':
1583 case 'r':
1584 case 's':
1585 case 't':
1586 {
1587 lf *file = lf_open (optarg, real_file_name, file_references,
1588 (is_header ? lf_is_h : lf_is_c),
1589 argv[0]);
1590 if (gen == NULL && ch != 't' && ch != 'm' && ch != 'f')
1591 {
1592 options.warning (NULL,
1593 "Explicitly generate tables with -x option\n");
1594 gen = do_gen (isa, decode_rules);
1595 }
1596 lf_print__file_start (file);
1597 switch (ch)
1598 {
1599 case 'm':
1600 if (is_header)
1601 gen_model_h (file, isa);
1602 else
1603 gen_model_c (file, isa);
1604 break;
1605 case 't':
1606 if (is_header)
1607 gen_itable_h (file, isa);
1608 else
1609 gen_itable_c (file, isa);
1610 break;
1611 case 'f':
1612 if (is_header)
1613 gen_support_h (file, isa);
1614 else
1615 gen_support_c (file, isa);
1616 break;
1617 case 'r':
1618 if (is_header)
1619 options.warning (NULL, "-hr option ignored\n");
1620 else
1621 gen_run_c (file, gen);
1622 break;
1623 case 's':
1624 if (is_header)
1625 gen_semantics_h (file, gen->semantics, isa->max_nr_words);
1626 else
1627 gen_semantics_c (file, gen->semantics, isa->caches);
1628 break;
1629 case 'd':
1630 if (is_header)
1631 gen_idecode_h (file, gen, isa, cache_rules);
1632 else
1633 gen_idecode_c (file, gen, isa, cache_rules);
1634 break;
1635 case 'e':
1636 if (is_header)
1637 gen_engine_h (file, gen, isa, cache_rules);
1638 else
1639 gen_engine_c (file, gen, isa, cache_rules);
1640 break;
1641 case 'c':
1642 if (is_header)
1643 gen_icache_h (file,
1644 gen->semantics,
1645 isa->functions, isa->max_nr_words);
1646 else
1647 gen_icache_c (file,
1648 gen->semantics, isa->functions, cache_rules);
1649 break;
1650 }
1651 lf_print__file_finish (file);
1652 lf_close (file);
1653 is_header = 0;
1654 }
1655 real_file_name = NULL;
1656 break;
1657 default:
1658 ERROR ("Bad switch");
1659 }
1660 }
1661 return (0);
1662 }
GDB Binutils - Deliverables
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