| 1 | /* Copyright (c) 1980 Regents of the University of California */ |
| 2 | static char sccsid[] = "@(#)asmain.c 4.6 %G%"; |
| 3 | #include <stdio.h> |
| 4 | #include <ctype.h> |
| 5 | #include <signal.h> |
| 6 | |
| 7 | #include "as.h" |
| 8 | #include "assyms.h" |
| 9 | #include "asexpr.h" |
| 10 | #include "asscan.h" |
| 11 | |
| 12 | #ifdef UNIX |
| 13 | #define unix_lang_name "VAX/UNIX Assembler V%G% 4.6" |
| 14 | #endif |
| 15 | |
| 16 | #ifdef VMS |
| 17 | #define vms_lang_name "VAX/VMS C Assembler V1.00" |
| 18 | #endif VMS |
| 19 | |
| 20 | /* |
| 21 | * variables to manage reading the assembly source files |
| 22 | */ |
| 23 | char *dotsname; /*the current file name; managed by the parser*/ |
| 24 | int lineno; /*current line number; managed by the parser*/ |
| 25 | char **innames; /*names of the files being assembled*/ |
| 26 | int ninfiles; /*how many interesting files there are*/ |
| 27 | /* |
| 28 | * Flags settable from the argv process argument list |
| 29 | */ |
| 30 | int silent = 0; /*don't complain about any errors*/ |
| 31 | int savelabels = 0; /*write the labels to the a.out file*/ |
| 32 | int d124 = 4; /*default allocate 4 bytes for unknown pointers*/ |
| 33 | int anyerrs = 0; /*no errors yet*/ |
| 34 | int orgwarn = 0; /*Bad origins*/ |
| 35 | int passno = 1; /* current pass*/ |
| 36 | int jxxxJUMP = 0; /* in jxxxes that branch too far, use jmp instead of brw */ |
| 37 | int readonlydata = 0; /* initialzed data -> text space */ |
| 38 | |
| 39 | #ifdef DEBUG |
| 40 | int debug = 0; |
| 41 | int toktrace = 0; |
| 42 | #endif |
| 43 | |
| 44 | int useVM = /*put the temp file in virtual memory*/ |
| 45 | #ifdef VMS |
| 46 | 1; /*VMS has virtual memory (duh)*/ |
| 47 | #endif VMS |
| 48 | #ifdef UNIX |
| 49 | 0; |
| 50 | #endif |
| 51 | |
| 52 | char *endcore; /*where to get more symbol space*/ |
| 53 | |
| 54 | /* |
| 55 | * Managers of the a.out file. |
| 56 | */ |
| 57 | struct exec hdr; |
| 58 | #define MAGIC 0407 |
| 59 | u_long tsize; /* total text size */ |
| 60 | u_long dsize; /* total data size */ |
| 61 | u_long datbase; /* base of the data segment */ |
| 62 | u_long trsize; /* total text relocation size */ |
| 63 | u_long drsize; /* total data relocation size */ |
| 64 | |
| 65 | /* |
| 66 | * Information about the current segment is accumulated in |
| 67 | * usedot; the most important information stored is the |
| 68 | * accumulated size of each of the text and data segments |
| 69 | * |
| 70 | * dotp points to the correct usedot expression for the current segment |
| 71 | */ |
| 72 | struct exp usedot[NLOC+NLOC]; /* info about all segments */ |
| 73 | struct exp *dotp; /* data/text location pointer */ |
| 74 | /* |
| 75 | * The inter pass temporary file is opened and closed by stdio, but |
| 76 | * is written to using direct read/write, as the temporary file |
| 77 | * is composed of buffers exactly BUFSIZ long. |
| 78 | */ |
| 79 | FILE *tmpfil; /* interpass communication file */ |
| 80 | /* |
| 81 | * a.out is created during the second pass. |
| 82 | * It is opened by stdio, but is filled with the parallel |
| 83 | * block I/O library |
| 84 | */ |
| 85 | char *outfile = "a.out"; |
| 86 | FILE *a_out_file; |
| 87 | off_t a_out_off; /* cumulative offsets for segments */ |
| 88 | /* |
| 89 | * The logical files containing the assembled data for each of |
| 90 | * the text and data segments are |
| 91 | * managed by the parallel block I/O library. |
| 92 | * a.out is logically opened in many places at once to |
| 93 | * receive the assembled data from the various segments as |
| 94 | * it all trickles in, but is physically opened only once |
| 95 | * to minimize file overhead. |
| 96 | */ |
| 97 | BFILE *usefile[NLOC+NLOC]; /* text/data files */ |
| 98 | BFILE *txtfil; /* current text/data file */ |
| 99 | /* |
| 100 | * Relocation information is accumulated seperately for each |
| 101 | * segment. This is required by the old loader (from BTL), |
| 102 | * but not by the new loader (Bill Joy). |
| 103 | * |
| 104 | * However, the size of the relocation information can not be computed |
| 105 | * during or after the 1st pass because the ''absoluteness' of values |
| 106 | * is unknown until all locally declared symbols have been seen. |
| 107 | * Thus, the size of the relocation information is only |
| 108 | * known after the second pass is finished. |
| 109 | * This obviates the use of the block I/O |
| 110 | * library, which requires knowing the exact offsets in a.out. |
| 111 | * |
| 112 | * So, we save the relocation information internally (we don't |
| 113 | * go to internal files to minimize overhead). |
| 114 | * |
| 115 | * Empirically, we studied 259 files composing the system, |
| 116 | * two compilers and a compiler generator: (all of which have |
| 117 | * fairly large source files) |
| 118 | * |
| 119 | * Number of files = 259 |
| 120 | * Number of non zero text reloc files: 233 |
| 121 | * Number of non zero data reloc files: 53 |
| 122 | * Average text relocation = 889 |
| 123 | * Average data relocation = 346 |
| 124 | * Number of files > BUFSIZ text relocation = 71 |
| 125 | * Number of files > BUFSIZ data relocation = 6 |
| 126 | * |
| 127 | * For compiled C code, there is usually one text segment and two |
| 128 | * data segments; we see that allocating our own buffers and |
| 129 | * doing our internal handling of relocation information will, |
| 130 | * on the average, not use more memory than taken up by the buffers |
| 131 | * allocated for doing file I/O in parallel to a number of file. |
| 132 | * |
| 133 | * If we are assembling with the -V option, we |
| 134 | * use the left over token buffers from the 2nd pass, |
| 135 | * otherwise, we create our own. |
| 136 | * |
| 137 | * When the 2nd pass is complete, closeoutrel flushes the token |
| 138 | * buffers out to a BFILE. |
| 139 | * |
| 140 | * The internals to relbufdesc are known only in assyms.c |
| 141 | * |
| 142 | * outrel constructs the relocation information. |
| 143 | * closeoutrel flushes the relocation information to relfil. |
| 144 | */ |
| 145 | struct relbufdesc *rusefile[NLOC+NLOC]; |
| 146 | struct relbufdesc *relfil; /* un concatnated relocation info */ |
| 147 | BFILE *relocfile; /* concatnated relocation info */ |
| 148 | /* |
| 149 | * Once the relocation information has been written, |
| 150 | * we can write out the symbol table using the Block I/O |
| 151 | * mechanisms, as we once again know the offsets into |
| 152 | * the a.out file. |
| 153 | * |
| 154 | * We use relfil to output the symbol table information. |
| 155 | */ |
| 156 | |
| 157 | char *tmpdirprefix = |
| 158 | #ifdef UNIX |
| 159 | "/tmp/"; |
| 160 | #else VMS |
| 161 | "/usr/tmp/"; |
| 162 | #endif |
| 163 | |
| 164 | #define TMP_SUFFIX "asXXXXXX" |
| 165 | char tmpn1[TNAMESIZE]; |
| 166 | |
| 167 | int delexit(); |
| 168 | |
| 169 | main(argc, argv) |
| 170 | int argc; |
| 171 | char **argv; |
| 172 | { |
| 173 | |
| 174 | tmpn1[0] = 0; |
| 175 | endcore = (char *)sbrk(0); |
| 176 | |
| 177 | argprocess(argc, argv); /* process argument lists */ |
| 178 | if (anyerrs) exit(1); |
| 179 | |
| 180 | initialize(); |
| 181 | zeroorigins(); /* set origins to zero */ |
| 182 | zerolocals(); /* fix local label counters */ |
| 183 | |
| 184 | i_pass1(); /* open temp files, etc */ |
| 185 | pass1(); /* first pass through .s files */ |
| 186 | testlocals(); /* check for undefined locals */ |
| 187 | if (anyerrs) delexit(); |
| 188 | |
| 189 | pass1_5(); /* resolve jxxx */ |
| 190 | if (anyerrs) delexit(); |
| 191 | |
| 192 | open_a_out(); /* open a.out */ |
| 193 | roundsegments(); /* round segments to FW */ |
| 194 | build_hdr(); /* build initial header, and output */ |
| 195 | |
| 196 | i_pass2(); /* reopen temporary file, etc */ |
| 197 | pass2(); /* second pass through the virtual .s */ |
| 198 | if (anyerrs) delexit(); |
| 199 | |
| 200 | fillsegments(); /* fill segments with 0 to FW */ |
| 201 | reloc_syms(); /* dump relocation and symbol table */ |
| 202 | |
| 203 | delete(); /* remove tmp file */ |
| 204 | bflush(); /* close off block I/O view of a.out */ |
| 205 | fix_a_out(); /* add in text and data reloc counts */ |
| 206 | |
| 207 | if (anyerrs == 0 && orgwarn) |
| 208 | yyerror("Caution: absolute origins.\n"); |
| 209 | exit(anyerrs != 0); |
| 210 | } /*end of UNIX main*/ |
| 211 | |
| 212 | argprocess(argc, argv) |
| 213 | int argc; |
| 214 | char *argv[]; |
| 215 | { |
| 216 | register char *cp; |
| 217 | |
| 218 | ninfiles = 0; |
| 219 | silent = 0; |
| 220 | #ifdef DEBUG |
| 221 | debug = 0; |
| 222 | #endif |
| 223 | innames = (char **)ClearCalloc(argc+1, sizeof (innames[0])); |
| 224 | dotsname = "<argv error>"; |
| 225 | while (argc > 1) { |
| 226 | if (argv[1][0] != '-') |
| 227 | innames[ninfiles++] = argv[1]; |
| 228 | else { |
| 229 | cp = argv[1] + 1; |
| 230 | /* |
| 231 | * We can throw away single minus signs, so |
| 232 | * that make scripts for the PDP 11 assembler work |
| 233 | * on this assembler too |
| 234 | */ |
| 235 | while (*cp){ |
| 236 | switch(*cp++){ |
| 237 | default: |
| 238 | yyerror("Unknown flag: %c", *--cp); |
| 239 | cp++; |
| 240 | break; |
| 241 | case 'd': |
| 242 | d124 = *cp++ - '0'; |
| 243 | if ( (d124 != 1) && (d124 != 2) && |
| 244 | (d124 != 4)){ |
| 245 | yyerror("-d[124] only"); |
| 246 | exit(1); |
| 247 | } |
| 248 | break; |
| 249 | case 'o': |
| 250 | if (argc < 3){ |
| 251 | yyerror("-o what???"); |
| 252 | exit(1); |
| 253 | } |
| 254 | outfile = argv[2]; |
| 255 | bumpone: |
| 256 | argc -= 2; |
| 257 | argv += 2; |
| 258 | goto nextarg; |
| 259 | |
| 260 | case 't': |
| 261 | if (argc < 3){ |
| 262 | yyerror("-t what???"); |
| 263 | exit(1); |
| 264 | } |
| 265 | tmpdirprefix = argv[2]; |
| 266 | goto bumpone; |
| 267 | |
| 268 | case 'V': |
| 269 | useVM = 1; |
| 270 | break; |
| 271 | case 'W': |
| 272 | silent = 1; |
| 273 | break; |
| 274 | case 'L': |
| 275 | savelabels = 1; |
| 276 | break; |
| 277 | case 'J': |
| 278 | jxxxJUMP = 1; |
| 279 | break; |
| 280 | #ifdef DEBUG |
| 281 | case 'D': |
| 282 | debug = 1; |
| 283 | break; |
| 284 | case 'T': |
| 285 | toktrace = 1; |
| 286 | break; |
| 287 | #endif |
| 288 | case 'R': |
| 289 | readonlydata = 1; |
| 290 | break; |
| 291 | } /*end of the switch*/ |
| 292 | } /*end of pulling out all arguments*/ |
| 293 | } /*end of a flag argument*/ |
| 294 | --argc; ++argv; |
| 295 | nextarg:; |
| 296 | } |
| 297 | /* innames[ninfiles] = 0; */ |
| 298 | } |
| 299 | |
| 300 | initialize() |
| 301 | { |
| 302 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) |
| 303 | signal(SIGINT, delexit); |
| 304 | /* |
| 305 | * Install symbols in the table |
| 306 | */ |
| 307 | symtabinit(); |
| 308 | syminstall(); |
| 309 | /* |
| 310 | * Build the expression parser accelerator token sets |
| 311 | */ |
| 312 | buildtokensets(); |
| 313 | } |
| 314 | |
| 315 | zeroorigins() |
| 316 | { |
| 317 | register int locindex; |
| 318 | /* |
| 319 | * Mark usedot: the first NLOC slots are for named text segments, |
| 320 | * the next for named data segments. |
| 321 | */ |
| 322 | for (locindex = 0; locindex < NLOC; locindex++){ |
| 323 | usedot[locindex].e_xtype = XTEXT; |
| 324 | usedot[NLOC + locindex].e_xtype = XDATA; |
| 325 | usedot[locindex].e_xvalue = 0; |
| 326 | usedot[NLOC + locindex].e_xvalue = 0; |
| 327 | usedot[locindex].e_yvalue = 0; |
| 328 | usedot[NLOC + locindex].e_yvalue = 0; |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | zerolocals() |
| 333 | { |
| 334 | register int i; |
| 335 | |
| 336 | for (i = 0; i <= 9; i++) { |
| 337 | lgensym[i] = 1; |
| 338 | genref[i] = 0; |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | i_pass1() |
| 343 | { |
| 344 | if (useVM == 0){ |
| 345 | strcat(tmpn1, tmpdirprefix); |
| 346 | if (tmpdirprefix[strlen(tmpdirprefix)-1] != '/') |
| 347 | strcat(tmpn1, "/"); |
| 348 | strcat(tmpn1, TMP_SUFFIX); |
| 349 | mktemp(tmpn1); |
| 350 | tmpfil = fopen(tmpn1, "w"); |
| 351 | if (tmpfil==NULL) { |
| 352 | yyerror("Bad pass 1 temporary file for writing %s", tmpn1); |
| 353 | delexit(); |
| 354 | } |
| 355 | } |
| 356 | |
| 357 | inittmpfile(); |
| 358 | initijxxx(); |
| 359 | } |
| 360 | |
| 361 | pass1() |
| 362 | { |
| 363 | register int i; |
| 364 | |
| 365 | passno = 1; |
| 366 | dotp = &usedot[0]; |
| 367 | txtfil = (BFILE *)0; |
| 368 | relfil = (struct relbufdesc *)0; |
| 369 | |
| 370 | if (ninfiles == 0){ /*take the input from stdin directly*/ |
| 371 | lineno = 1; |
| 372 | dotsname = "<stdin>"; |
| 373 | |
| 374 | yyparse(); |
| 375 | } else { /*we have the names tanked*/ |
| 376 | for (i = 0; i < ninfiles; i++){ |
| 377 | new_dot_s(innames[i]); |
| 378 | if (freopen(innames[i], "r", stdin) == NULL) { |
| 379 | yyerror( "Can't open source file %s\n", |
| 380 | innames[i]); |
| 381 | exit(2); |
| 382 | } |
| 383 | /* stdio is NOT used to read the input characters */ |
| 384 | /* we use read directly, into our own buffers */ |
| 385 | yyparse(); |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | closetmpfile(); /*kick out the last buffered intermediate text*/ |
| 390 | } |
| 391 | |
| 392 | testlocals() |
| 393 | { |
| 394 | register int i; |
| 395 | for (i = 0; i <= 9; i++) { |
| 396 | if (genref[i]) |
| 397 | yyerror("Reference to undefined local label %df", i); |
| 398 | lgensym[i] = 1; |
| 399 | genref[i] = 0; |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | pass1_5() |
| 404 | { |
| 405 | sortsymtab(); |
| 406 | #ifdef DEBUG |
| 407 | if (debug) dumpsymtab(); |
| 408 | #endif |
| 409 | jxxxfix(); |
| 410 | #ifdef DEBUG |
| 411 | if (debug) dumpsymtab(); |
| 412 | #endif |
| 413 | } |
| 414 | |
| 415 | open_a_out() |
| 416 | { |
| 417 | /* |
| 418 | * Open up the a.out file now, and get set to build |
| 419 | * up offsets into it for all of the various text,data |
| 420 | * text relocation and data relocation segments. |
| 421 | */ |
| 422 | a_out_file = fopen(outfile, "w"); |
| 423 | if (a_out_file == NULL) { |
| 424 | yyerror("Cannot create %s", outfile); |
| 425 | delexit(); |
| 426 | } |
| 427 | biofd = a_out_file->_file; |
| 428 | a_out_off = 0; |
| 429 | } |
| 430 | |
| 431 | roundsegments() |
| 432 | { |
| 433 | register int locindex; |
| 434 | register long v; |
| 435 | /* |
| 436 | * round and assign text segment origins |
| 437 | * the exec header always goes in usefile[0] |
| 438 | */ |
| 439 | tsize = 0; |
| 440 | for (locindex=0; locindex<NLOC; locindex++) { |
| 441 | v = round(usedot[locindex].e_xvalue, FW); |
| 442 | usedot[locindex].e_xvalue = tsize; |
| 443 | if ((locindex == 0) || (v != 0) ){ |
| 444 | usefile[locindex] = (BFILE *)Calloc(1, sizeof(BFILE)); |
| 445 | bopen(usefile[locindex], a_out_off); |
| 446 | if (locindex == 0) |
| 447 | a_out_off = sizeof (struct exec); |
| 448 | } else { |
| 449 | usefile[locindex] = (BFILE *)-1; |
| 450 | } |
| 451 | tsize += v; |
| 452 | a_out_off += v; |
| 453 | } |
| 454 | /* |
| 455 | * Round and assign data segment origins. |
| 456 | */ |
| 457 | datbase = round(tsize, FW); |
| 458 | for (locindex=0; locindex<NLOC; locindex++) { |
| 459 | v = round(usedot[NLOC+locindex].e_xvalue, FW); |
| 460 | usedot[NLOC+locindex].e_xvalue = datbase + dsize; |
| 461 | if (v != 0){ |
| 462 | usefile[NLOC + locindex] = (BFILE *)Calloc(1,sizeof(BFILE)); |
| 463 | bopen(usefile[NLOC + locindex], a_out_off); |
| 464 | } else { |
| 465 | usefile[NLOC + locindex] = (BFILE *)-1; |
| 466 | } |
| 467 | dsize += v; |
| 468 | a_out_off += v; |
| 469 | } |
| 470 | /* |
| 471 | * Assign final values to symbols |
| 472 | */ |
| 473 | hdr.a_bss = dsize; |
| 474 | freezesymtab(); /* this touches hdr.a_bss */ |
| 475 | stabfix(); |
| 476 | /* |
| 477 | * Set up the relocation information "files" to |
| 478 | * be zero; outrel takes care of the rest |
| 479 | */ |
| 480 | for (locindex = 0; locindex < NLOC + NLOC; locindex++){ |
| 481 | rusefile[locindex] = (struct relbufdesc *)0; |
| 482 | } |
| 483 | } |
| 484 | |
| 485 | build_hdr() |
| 486 | { |
| 487 | /* |
| 488 | * Except for the text and data relocation sizes, |
| 489 | * calculate the final values for the header |
| 490 | * |
| 491 | * Write out the initial copy; we to come |
| 492 | * back later and patch up a_trsize and a_drsize, |
| 493 | * and overwrite this first version of the header. |
| 494 | */ |
| 495 | hdr.a_magic = MAGIC; |
| 496 | hdr.a_text = tsize; |
| 497 | hdr.a_data = dsize; |
| 498 | hdr.a_bss -= dsize; |
| 499 | hdr.a_syms = sizesymtab(); /* Does not include string pool length */ |
| 500 | hdr.a_entry = 0; |
| 501 | hdr.a_trsize = 0; |
| 502 | hdr.a_drsize = 0; |
| 503 | |
| 504 | bwrite((char *)&hdr, sizeof(hdr), usefile[0]); |
| 505 | } |
| 506 | |
| 507 | i_pass2() |
| 508 | { |
| 509 | if (useVM == 0) { |
| 510 | fclose(tmpfil); |
| 511 | tmpfil = fopen(tmpn1, "r"); |
| 512 | if (tmpfil==NULL) { |
| 513 | yyerror("Bad pass 2 temporary file for reading %s", tmpn1); |
| 514 | delexit(); |
| 515 | } |
| 516 | } |
| 517 | } |
| 518 | |
| 519 | pass2() |
| 520 | { |
| 521 | #ifdef DEBUG |
| 522 | if (debug) |
| 523 | printf("\n\n\n\t\tPASS 2\n\n\n\n"); |
| 524 | #endif DEBUG |
| 525 | passno = 2; |
| 526 | lineno = 1; |
| 527 | dotp = &usedot[0]; |
| 528 | txtfil = usefile[0]; /* already opened (always!) */ |
| 529 | relfil = 0; /* outrel takes care of the rest */ |
| 530 | initoutrel(); |
| 531 | |
| 532 | inittmpfile(); |
| 533 | |
| 534 | yyparse(); |
| 535 | |
| 536 | closetmpfile(); |
| 537 | } |
| 538 | |
| 539 | fillsegments() |
| 540 | { |
| 541 | int locindex; |
| 542 | /* |
| 543 | * Round text and data segments to FW by appending zeros |
| 544 | */ |
| 545 | for (locindex = 0; locindex < NLOC + NLOC; locindex++) { |
| 546 | if (usefile[locindex]) { |
| 547 | txtfil = usefile[locindex]; |
| 548 | dotp = &usedot[locindex]; |
| 549 | while (usedot[locindex].e_xvalue & FW) |
| 550 | outb(0); |
| 551 | } |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | reloc_syms() |
| 556 | { |
| 557 | u_long closerelfil(); |
| 558 | /* |
| 559 | * Move the relocation information to a.out |
| 560 | * a_out_off is the offset so far: |
| 561 | * exec + text segments + data segments |
| 562 | */ |
| 563 | relocfile = (BFILE *)Calloc(1,sizeof(BFILE)); |
| 564 | bopen(relocfile, a_out_off); |
| 565 | a_out_off += closeoutrel(relocfile); |
| 566 | |
| 567 | hdr.a_trsize = trsize; |
| 568 | hdr.a_drsize = drsize; |
| 569 | if (readonlydata) { |
| 570 | hdr.a_text += hdr.a_data; |
| 571 | hdr.a_data = 0; |
| 572 | hdr.a_trsize += hdr.a_drsize; |
| 573 | hdr.a_drsize = 0; |
| 574 | } |
| 575 | /* |
| 576 | * Output the symbol table |
| 577 | * and if FLEXNAMES is set, the string pool |
| 578 | */ |
| 579 | symwrite(relocfile); |
| 580 | } |
| 581 | |
| 582 | fix_a_out() |
| 583 | { |
| 584 | if (lseek(a_out_file->_file, 0L, 0) < 0) |
| 585 | yyerror("Reposition for header rewrite fails"); |
| 586 | if (write(a_out_file->_file, (char *)&hdr, sizeof (struct exec)) < 0) |
| 587 | yyerror("Rewrite of header fails"); |
| 588 | } |
| 589 | |
| 590 | delexit() |
| 591 | { |
| 592 | delete(); |
| 593 | if (passno == 2){ |
| 594 | unlink(outfile); |
| 595 | } |
| 596 | exit(1); |
| 597 | } |
| 598 | |
| 599 | delete() |
| 600 | { |
| 601 | if (useVM == 0 || tmpn1[0]) |
| 602 | unlink(tmpn1); |
| 603 | } |
| 604 | |
| 605 | sawabort() |
| 606 | { |
| 607 | char *fillinbuffer(); |
| 608 | while (fillinbuffer() != (char *)0) |
| 609 | continue; |
| 610 | delete(); |
| 611 | exit(1); /*although the previous pass will also exit non zero*/ |
| 612 | } |
| 613 | |
| 614 | panic(fmt, a1, a2, a3, a4) |
| 615 | char *fmt; |
| 616 | /*VARARGS 1*/ |
| 617 | { |
| 618 | yyerror("Assembler panic: bad internal data structure."); |
| 619 | yyerror(fmt, a1, a2, a3, a4); |
| 620 | delete(); |
| 621 | abort(); |
| 622 | } |