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 55int 56print_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 93int 94print_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 115int 116print_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 127int 128print_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 146int 147print_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 161int 162print_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 180static int 181print_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 203static int 204print_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 227extern int 228print_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 284void 285print_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 326static int 327print_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 343static void 344print_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 480void 481print_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 567void 568print_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 576void 577print_include (lf *file, igen_module module) 578{ 579 lf_printf (file, "#include \"%s%s.h\"\n", module.prefix.l, module.suffix.l); 580} 581 582void 583print_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 593void 594print_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 608static void 609gen_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 649static void 650gen_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 682static void 683gen_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 719static void 720gen_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 760static void 761gen_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 819static void 820gen_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 873static void 874gen_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 963static gen_table * 964do_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 981igen_options options; 982 983int 984main (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} 1663