Commit | Line | Data |
---|---|---|
f70ab843 | 1 | /* |
e170e18b DF |
2 | * Copyright (c) 1982 Regents of the University of California. |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
f70ab843 | 5 | */ |
e170e18b DF |
6 | |
7 | #ifndef lint | |
8 | char copyright[] = | |
9 | "@(#) Copyright (c) 1982 Regents of the University of California.\n\ | |
10 | All rights reserved.\n"; | |
11 | #endif not lint | |
12 | ||
f70ab843 | 13 | #ifndef lint |
6521d648 | 14 | static char sccsid[] = "@(#)asmain.c 5.3 (Berkeley) %G%"; |
f70ab843 RH |
15 | #endif not lint |
16 | ||
59e14996 BJ |
17 | #include <stdio.h> |
18 | #include <ctype.h> | |
59e14996 | 19 | #include <signal.h> |
59e14996 BJ |
20 | |
21 | #include "as.h" | |
22 | #include "assyms.h" | |
59e14996 | 23 | #include "asscan.h" |
f70ab843 | 24 | #include "asexpr.h" |
59e14996 | 25 | |
8192c7f0 RC |
26 | #include <sys/stat.h> |
27 | ||
6521d648 | 28 | #define unix_lang_name "VAX/UNIX Assembler V%G% 5.3" |
59e14996 BJ |
29 | /* |
30 | * variables to manage reading the assembly source files | |
31 | */ | |
32 | char *dotsname; /*the current file name; managed by the parser*/ | |
33 | int lineno; /*current line number; managed by the parser*/ | |
100d3f3c | 34 | char **innames; /*names of the files being assembled*/ |
59e14996 BJ |
35 | int ninfiles; /*how many interesting files there are*/ |
36 | /* | |
37 | * Flags settable from the argv process argument list | |
38 | */ | |
39 | int silent = 0; /*don't complain about any errors*/ | |
40 | int savelabels = 0; /*write the labels to the a.out file*/ | |
41 | int d124 = 4; /*default allocate 4 bytes for unknown pointers*/ | |
ea01d993 | 42 | int maxalign = 2; /*default .align maximum*/ |
59e14996 | 43 | int anyerrs = 0; /*no errors yet*/ |
f70ab843 | 44 | int anywarnings=0; /*no warnings yet*/ |
59e14996 BJ |
45 | int orgwarn = 0; /*Bad origins*/ |
46 | int passno = 1; /* current pass*/ | |
e5b9ebfb | 47 | int jxxxJUMP = 0; /* in jxxxes that branch too far, use jmp instead of brw */ |
ed84d47b | 48 | int readonlydata = 0; /* initialzed data -> text space */ |
59e14996 | 49 | |
f70ab843 RH |
50 | int nGHnumbers = 0; /* GH numbers used */ |
51 | int nGHopcodes = 0; /* GH opcodes used */ | |
52 | int nnewopcodes = 0; /* new opcodes used */ | |
53 | ||
59e14996 BJ |
54 | #ifdef DEBUG |
55 | int debug = 0; | |
56 | int toktrace = 0; | |
57 | #endif | |
58 | ||
e40ffc5c | 59 | int useVM = 0; |
59e14996 BJ |
60 | |
61 | char *endcore; /*where to get more symbol space*/ | |
62 | ||
63 | /* | |
64 | * Managers of the a.out file. | |
65 | */ | |
66 | struct exec hdr; | |
ed84d47b | 67 | #define MAGIC 0407 |
59e14996 BJ |
68 | u_long tsize; /* total text size */ |
69 | u_long dsize; /* total data size */ | |
70 | u_long datbase; /* base of the data segment */ | |
71 | u_long trsize; /* total text relocation size */ | |
72 | u_long drsize; /* total data relocation size */ | |
73 | ||
74 | /* | |
75 | * Information about the current segment is accumulated in | |
76 | * usedot; the most important information stored is the | |
77 | * accumulated size of each of the text and data segments | |
78 | * | |
79 | * dotp points to the correct usedot expression for the current segment | |
80 | */ | |
81 | struct exp usedot[NLOC+NLOC]; /* info about all segments */ | |
82 | struct exp *dotp; /* data/text location pointer */ | |
83 | /* | |
ec43bca4 | 84 | * The inter pass temporary token file is opened and closed by stdio, but |
59e14996 BJ |
85 | * is written to using direct read/write, as the temporary file |
86 | * is composed of buffers exactly BUFSIZ long. | |
87 | */ | |
ec43bca4 RH |
88 | FILE *tokfile; /* interpass communication file */ |
89 | char tokfilename[TNAMESIZE]; | |
90 | /* | |
91 | * The string file is the string table | |
92 | * cat'ed to the end of the built up a.out file | |
93 | */ | |
94 | FILE *strfile; /* interpass string file */ | |
95 | char strfilename[TNAMESIZE]; | |
96 | int strfilepos = 0; /* position within the string file */ | |
59e14996 BJ |
97 | /* |
98 | * a.out is created during the second pass. | |
99 | * It is opened by stdio, but is filled with the parallel | |
100 | * block I/O library | |
101 | */ | |
102 | char *outfile = "a.out"; | |
103 | FILE *a_out_file; | |
104 | off_t a_out_off; /* cumulative offsets for segments */ | |
105 | /* | |
106 | * The logical files containing the assembled data for each of | |
107 | * the text and data segments are | |
108 | * managed by the parallel block I/O library. | |
109 | * a.out is logically opened in many places at once to | |
110 | * receive the assembled data from the various segments as | |
111 | * it all trickles in, but is physically opened only once | |
112 | * to minimize file overhead. | |
113 | */ | |
114 | BFILE *usefile[NLOC+NLOC]; /* text/data files */ | |
115 | BFILE *txtfil; /* current text/data file */ | |
116 | /* | |
117 | * Relocation information is accumulated seperately for each | |
118 | * segment. This is required by the old loader (from BTL), | |
119 | * but not by the new loader (Bill Joy). | |
120 | * | |
121 | * However, the size of the relocation information can not be computed | |
122 | * during or after the 1st pass because the ''absoluteness' of values | |
123 | * is unknown until all locally declared symbols have been seen. | |
124 | * Thus, the size of the relocation information is only | |
125 | * known after the second pass is finished. | |
126 | * This obviates the use of the block I/O | |
127 | * library, which requires knowing the exact offsets in a.out. | |
128 | * | |
129 | * So, we save the relocation information internally (we don't | |
130 | * go to internal files to minimize overhead). | |
131 | * | |
132 | * Empirically, we studied 259 files composing the system, | |
133 | * two compilers and a compiler generator: (all of which have | |
134 | * fairly large source files) | |
135 | * | |
136 | * Number of files = 259 | |
137 | * Number of non zero text reloc files: 233 | |
138 | * Number of non zero data reloc files: 53 | |
139 | * Average text relocation = 889 | |
140 | * Average data relocation = 346 | |
141 | * Number of files > BUFSIZ text relocation = 71 | |
142 | * Number of files > BUFSIZ data relocation = 6 | |
143 | * | |
144 | * For compiled C code, there is usually one text segment and two | |
145 | * data segments; we see that allocating our own buffers and | |
146 | * doing our internal handling of relocation information will, | |
147 | * on the average, not use more memory than taken up by the buffers | |
148 | * allocated for doing file I/O in parallel to a number of file. | |
149 | * | |
150 | * If we are assembling with the -V option, we | |
151 | * use the left over token buffers from the 2nd pass, | |
152 | * otherwise, we create our own. | |
153 | * | |
154 | * When the 2nd pass is complete, closeoutrel flushes the token | |
155 | * buffers out to a BFILE. | |
156 | * | |
157 | * The internals to relbufdesc are known only in assyms.c | |
158 | * | |
159 | * outrel constructs the relocation information. | |
160 | * closeoutrel flushes the relocation information to relfil. | |
161 | */ | |
162 | struct relbufdesc *rusefile[NLOC+NLOC]; | |
163 | struct relbufdesc *relfil; /* un concatnated relocation info */ | |
164 | BFILE *relocfile; /* concatnated relocation info */ | |
165 | /* | |
166 | * Once the relocation information has been written, | |
167 | * we can write out the symbol table using the Block I/O | |
168 | * mechanisms, as we once again know the offsets into | |
169 | * the a.out file. | |
170 | * | |
171 | * We use relfil to output the symbol table information. | |
172 | */ | |
e40ffc5c | 173 | char *tmpdirprefix = "/tmp/"; |
59e14996 BJ |
174 | int delexit(); |
175 | ||
176 | main(argc, argv) | |
177 | int argc; | |
178 | char **argv; | |
179 | { | |
f70ab843 | 180 | char *sbrk(); |
59e14996 | 181 | |
ec43bca4 RH |
182 | tokfilename[0] = 0; |
183 | strfilename[0] = 0; | |
f70ab843 | 184 | endcore = sbrk(0); |
59e14996 BJ |
185 | |
186 | argprocess(argc, argv); /* process argument lists */ | |
187 | if (anyerrs) exit(1); | |
188 | ||
189 | initialize(); | |
190 | zeroorigins(); /* set origins to zero */ | |
191 | zerolocals(); /* fix local label counters */ | |
192 | ||
193 | i_pass1(); /* open temp files, etc */ | |
194 | pass1(); /* first pass through .s files */ | |
195 | testlocals(); /* check for undefined locals */ | |
196 | if (anyerrs) delexit(); | |
197 | ||
198 | pass1_5(); /* resolve jxxx */ | |
199 | if (anyerrs) delexit(); | |
200 | ||
201 | open_a_out(); /* open a.out */ | |
7a5aec15 | 202 | roundsegments(); /* round segments to FW */ |
59e14996 BJ |
203 | build_hdr(); /* build initial header, and output */ |
204 | ||
205 | i_pass2(); /* reopen temporary file, etc */ | |
206 | pass2(); /* second pass through the virtual .s */ | |
207 | if (anyerrs) delexit(); | |
208 | ||
7a5aec15 | 209 | fillsegments(); /* fill segments with 0 to FW */ |
59e14996 BJ |
210 | reloc_syms(); /* dump relocation and symbol table */ |
211 | ||
212 | delete(); /* remove tmp file */ | |
213 | bflush(); /* close off block I/O view of a.out */ | |
214 | fix_a_out(); /* add in text and data reloc counts */ | |
215 | ||
216 | if (anyerrs == 0 && orgwarn) | |
217 | yyerror("Caution: absolute origins.\n"); | |
f70ab843 RH |
218 | |
219 | if (nGHnumbers) | |
220 | yywarning("Caution: G or H format floating point numbers"); | |
221 | if (nGHopcodes) | |
222 | yywarning("Caution: G or H format floating point operators"); | |
223 | if (nnewopcodes) | |
224 | yywarning("Caution: New Opcodes"); | |
225 | if (nGHnumbers || nGHopcodes || nnewopcodes) | |
226 | yywarning("These are not defined for all implementations of the VAX architecture.\n"); | |
227 | ||
59e14996 | 228 | exit(anyerrs != 0); |
e40ffc5c | 229 | } |
59e14996 BJ |
230 | |
231 | argprocess(argc, argv) | |
232 | int argc; | |
233 | char *argv[]; | |
234 | { | |
235 | register char *cp; | |
236 | ||
237 | ninfiles = 0; | |
238 | silent = 0; | |
239 | #ifdef DEBUG | |
240 | debug = 0; | |
241 | #endif | |
100d3f3c | 242 | innames = (char **)ClearCalloc(argc+1, sizeof (innames[0])); |
59e14996 BJ |
243 | dotsname = "<argv error>"; |
244 | while (argc > 1) { | |
100d3f3c BJ |
245 | if (argv[1][0] != '-') |
246 | innames[ninfiles++] = argv[1]; | |
247 | else { | |
59e14996 BJ |
248 | cp = argv[1] + 1; |
249 | /* | |
250 | * We can throw away single minus signs, so | |
251 | * that make scripts for the PDP 11 assembler work | |
252 | * on this assembler too | |
253 | */ | |
254 | while (*cp){ | |
255 | switch(*cp++){ | |
256 | default: | |
257 | yyerror("Unknown flag: %c", *--cp); | |
258 | cp++; | |
259 | break; | |
26c6a2ae RH |
260 | case 'v': |
261 | selfwhat(stdout); | |
262 | exit(1); | |
59e14996 BJ |
263 | case 'd': |
264 | d124 = *cp++ - '0'; | |
265 | if ( (d124 != 1) && (d124 != 2) && | |
266 | (d124 != 4)){ | |
267 | yyerror("-d[124] only"); | |
268 | exit(1); | |
269 | } | |
270 | break; | |
ea01d993 RH |
271 | case 'a': |
272 | maxalign = atoi(cp+1); | |
273 | for (cp++; isdigit(*cp); cp++) | |
274 | /*VOID*/; | |
275 | if ( (maxalign > 16) || (maxalign < 0)){ | |
276 | yyerror("-a: 0<=align<=16"); | |
277 | exit(1); | |
278 | } | |
279 | break; | |
59e14996 BJ |
280 | case 'o': |
281 | if (argc < 3){ | |
282 | yyerror("-o what???"); | |
283 | exit(1); | |
284 | } | |
285 | outfile = argv[2]; | |
286 | bumpone: | |
287 | argc -= 2; | |
288 | argv += 2; | |
289 | goto nextarg; | |
290 | ||
291 | case 't': | |
292 | if (argc < 3){ | |
293 | yyerror("-t what???"); | |
294 | exit(1); | |
295 | } | |
296 | tmpdirprefix = argv[2]; | |
297 | goto bumpone; | |
298 | ||
299 | case 'V': | |
300 | useVM = 1; | |
301 | break; | |
302 | case 'W': | |
303 | silent = 1; | |
304 | break; | |
305 | case 'L': | |
306 | savelabels = 1; | |
307 | break; | |
e5b9ebfb RH |
308 | case 'J': |
309 | jxxxJUMP = 1; | |
310 | break; | |
59e14996 BJ |
311 | #ifdef DEBUG |
312 | case 'D': | |
313 | debug = 1; | |
314 | break; | |
315 | case 'T': | |
316 | toktrace = 1; | |
317 | break; | |
318 | #endif | |
ed84d47b BJ |
319 | case 'R': |
320 | readonlydata = 1; | |
321 | break; | |
59e14996 BJ |
322 | } /*end of the switch*/ |
323 | } /*end of pulling out all arguments*/ | |
324 | } /*end of a flag argument*/ | |
59e14996 BJ |
325 | --argc; ++argv; |
326 | nextarg:; | |
327 | } | |
100d3f3c | 328 | /* innames[ninfiles] = 0; */ |
59e14996 | 329 | } |
26c6a2ae RH |
330 | /* |
331 | * poke through the data space and find all sccs identifiers. | |
332 | * We assume: | |
333 | * a) that extern char **environ; is the first thing in the bss | |
334 | * segment (true, if one is using the new version of cmgt.crt0.c) | |
335 | * b) that the sccsid's have not been put into text space. | |
336 | */ | |
337 | selfwhat(place) | |
338 | FILE *place; | |
339 | { | |
340 | extern char **environ; | |
341 | register char *ub; | |
342 | register char *cp; | |
343 | register char *pat; | |
344 | char *sbrk(); | |
345 | ||
346 | for (cp = (char *)&environ, ub = sbrk(0); cp < ub; cp++){ | |
347 | if (cp[0] != '@') continue; | |
348 | if (cp[1] != '(') continue; | |
349 | if (cp[2] != '#') continue; | |
350 | if (cp[3] != ')') continue; | |
351 | fputc('\t', place); | |
352 | for (cp += 4; cp < ub; cp++){ | |
353 | if (*cp == 0) break; | |
354 | if (*cp == '>') break; | |
355 | if (*cp == '\n') break; | |
356 | fputc(*cp, place); | |
357 | } | |
358 | fputc('\n', place); | |
359 | } | |
360 | } | |
59e14996 BJ |
361 | |
362 | initialize() | |
363 | { | |
364 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) | |
365 | signal(SIGINT, delexit); | |
366 | /* | |
367 | * Install symbols in the table | |
368 | */ | |
369 | symtabinit(); | |
370 | syminstall(); | |
371 | /* | |
372 | * Build the expression parser accelerator token sets | |
373 | */ | |
374 | buildtokensets(); | |
375 | } | |
376 | ||
377 | zeroorigins() | |
378 | { | |
379 | register int locindex; | |
380 | /* | |
381 | * Mark usedot: the first NLOC slots are for named text segments, | |
382 | * the next for named data segments. | |
383 | */ | |
384 | for (locindex = 0; locindex < NLOC; locindex++){ | |
451260e7 RH |
385 | usedot[locindex].e_xtype = XTEXT; |
386 | usedot[NLOC + locindex].e_xtype = XDATA; | |
387 | usedot[locindex].e_xvalue = 0; | |
388 | usedot[NLOC + locindex].e_xvalue = 0; | |
59e14996 BJ |
389 | } |
390 | } | |
391 | ||
392 | zerolocals() | |
393 | { | |
394 | register int i; | |
395 | ||
396 | for (i = 0; i <= 9; i++) { | |
397 | lgensym[i] = 1; | |
398 | genref[i] = 0; | |
399 | } | |
400 | } | |
401 | ||
402 | i_pass1() | |
403 | { | |
ec43bca4 RH |
404 | FILE *tempopen(); |
405 | if (useVM == 0) | |
406 | tokfile = tempopen(tokfilename, "T"); | |
407 | strfile = tempopen(strfilename, "S"); | |
408 | /* | |
409 | * write out the string length. | |
410 | * This will be overwritten when the | |
411 | * strings are tacked onto the growing a.out file | |
412 | */ | |
413 | strfilepos = sizeof(int); | |
414 | fwrite(&strfilepos, sizeof(int), 1, strfile); | |
59e14996 | 415 | |
ec43bca4 | 416 | inittokfile(); |
e5b9ebfb | 417 | initijxxx(); |
59e14996 BJ |
418 | } |
419 | ||
ec43bca4 RH |
420 | FILE *tempopen(tname, part) |
421 | char *tname; | |
422 | char *part; | |
423 | { | |
424 | FILE *file; | |
6521d648 | 425 | (void)sprintf(tname, "%s%sas%s%05d", |
ec43bca4 | 426 | tmpdirprefix, |
91425db3 | 427 | (tmpdirprefix[strlen(tmpdirprefix)-1] != '/') ? "/" : "", |
ec43bca4 RH |
428 | part, |
429 | getpid()); | |
430 | file = fopen(tname, "w"); | |
431 | if (file == NULL) { | |
432 | yyerror("Bad pass 1 temporary file for writing %s", tname); | |
433 | delexit(); | |
434 | } | |
435 | return(file); | |
436 | } | |
437 | ||
59e14996 BJ |
438 | pass1() |
439 | { | |
440 | register int i; | |
441 | ||
442 | passno = 1; | |
443 | dotp = &usedot[0]; | |
444 | txtfil = (BFILE *)0; | |
445 | relfil = (struct relbufdesc *)0; | |
446 | ||
447 | if (ninfiles == 0){ /*take the input from stdin directly*/ | |
448 | lineno = 1; | |
449 | dotsname = "<stdin>"; | |
450 | ||
451 | yyparse(); | |
452 | } else { /*we have the names tanked*/ | |
453 | for (i = 0; i < ninfiles; i++){ | |
454 | new_dot_s(innames[i]); | |
455 | if (freopen(innames[i], "r", stdin) == NULL) { | |
456 | yyerror( "Can't open source file %s\n", | |
457 | innames[i]); | |
458 | exit(2); | |
459 | } | |
460 | /* stdio is NOT used to read the input characters */ | |
461 | /* we use read directly, into our own buffers */ | |
462 | yyparse(); | |
463 | } | |
464 | } | |
465 | ||
ec43bca4 | 466 | closetokfile(); /*kick out the last buffered intermediate text*/ |
59e14996 BJ |
467 | } |
468 | ||
469 | testlocals() | |
470 | { | |
471 | register int i; | |
472 | for (i = 0; i <= 9; i++) { | |
473 | if (genref[i]) | |
474 | yyerror("Reference to undefined local label %df", i); | |
475 | lgensym[i] = 1; | |
476 | genref[i] = 0; | |
477 | } | |
478 | } | |
479 | ||
480 | pass1_5() | |
481 | { | |
482 | sortsymtab(); | |
483 | #ifdef DEBUG | |
484 | if (debug) dumpsymtab(); | |
485 | #endif | |
486 | jxxxfix(); | |
487 | #ifdef DEBUG | |
488 | if (debug) dumpsymtab(); | |
489 | #endif | |
490 | } | |
491 | ||
492 | open_a_out() | |
493 | { | |
8192c7f0 RC |
494 | struct stat stb; |
495 | ||
59e14996 BJ |
496 | /* |
497 | * Open up the a.out file now, and get set to build | |
498 | * up offsets into it for all of the various text,data | |
499 | * text relocation and data relocation segments. | |
500 | */ | |
501 | a_out_file = fopen(outfile, "w"); | |
502 | if (a_out_file == NULL) { | |
503 | yyerror("Cannot create %s", outfile); | |
504 | delexit(); | |
505 | } | |
506 | biofd = a_out_file->_file; | |
8192c7f0 RC |
507 | fstat(biofd, &stb); |
508 | biobufsize = stb.st_blksize; | |
59e14996 BJ |
509 | a_out_off = 0; |
510 | } | |
511 | ||
512 | roundsegments() | |
513 | { | |
514 | register int locindex; | |
515 | register long v; | |
516 | /* | |
517 | * round and assign text segment origins | |
518 | * the exec header always goes in usefile[0] | |
519 | */ | |
520 | tsize = 0; | |
521 | for (locindex=0; locindex<NLOC; locindex++) { | |
7a5aec15 | 522 | v = round(usedot[locindex].e_xvalue, FW); |
451260e7 | 523 | usedot[locindex].e_xvalue = tsize; |
59e14996 BJ |
524 | if ((locindex == 0) || (v != 0) ){ |
525 | usefile[locindex] = (BFILE *)Calloc(1, sizeof(BFILE)); | |
526 | bopen(usefile[locindex], a_out_off); | |
527 | if (locindex == 0) | |
528 | a_out_off = sizeof (struct exec); | |
529 | } else { | |
530 | usefile[locindex] = (BFILE *)-1; | |
531 | } | |
532 | tsize += v; | |
533 | a_out_off += v; | |
534 | } | |
535 | /* | |
536 | * Round and assign data segment origins. | |
537 | */ | |
7a5aec15 | 538 | datbase = round(tsize, FW); |
59e14996 | 539 | for (locindex=0; locindex<NLOC; locindex++) { |
7a5aec15 | 540 | v = round(usedot[NLOC+locindex].e_xvalue, FW); |
451260e7 | 541 | usedot[NLOC+locindex].e_xvalue = datbase + dsize; |
59e14996 BJ |
542 | if (v != 0){ |
543 | usefile[NLOC + locindex] = (BFILE *)Calloc(1,sizeof(BFILE)); | |
544 | bopen(usefile[NLOC + locindex], a_out_off); | |
545 | } else { | |
546 | usefile[NLOC + locindex] = (BFILE *)-1; | |
547 | } | |
548 | dsize += v; | |
549 | a_out_off += v; | |
550 | } | |
551 | /* | |
552 | * Assign final values to symbols | |
553 | */ | |
554 | hdr.a_bss = dsize; | |
555 | freezesymtab(); /* this touches hdr.a_bss */ | |
556 | stabfix(); | |
557 | /* | |
558 | * Set up the relocation information "files" to | |
559 | * be zero; outrel takes care of the rest | |
560 | */ | |
561 | for (locindex = 0; locindex < NLOC + NLOC; locindex++){ | |
562 | rusefile[locindex] = (struct relbufdesc *)0; | |
563 | } | |
564 | } | |
565 | ||
566 | build_hdr() | |
567 | { | |
568 | /* | |
569 | * Except for the text and data relocation sizes, | |
570 | * calculate the final values for the header | |
571 | * | |
572 | * Write out the initial copy; we to come | |
573 | * back later and patch up a_trsize and a_drsize, | |
574 | * and overwrite this first version of the header. | |
575 | */ | |
576 | hdr.a_magic = MAGIC; | |
577 | hdr.a_text = tsize; | |
578 | hdr.a_data = dsize; | |
579 | hdr.a_bss -= dsize; | |
580 | hdr.a_syms = sizesymtab(); /* Does not include string pool length */ | |
581 | hdr.a_entry = 0; | |
582 | hdr.a_trsize = 0; | |
583 | hdr.a_drsize = 0; | |
584 | ||
585 | bwrite((char *)&hdr, sizeof(hdr), usefile[0]); | |
586 | } | |
587 | ||
588 | i_pass2() | |
589 | { | |
590 | if (useVM == 0) { | |
ec43bca4 RH |
591 | fclose(tokfile); |
592 | tokfile = fopen(tokfilename, "r"); | |
593 | if (tokfile==NULL) { | |
594 | yyerror("Bad pass 2 temporary file for reading %s", tokfilename); | |
59e14996 BJ |
595 | delexit(); |
596 | } | |
597 | } | |
ec43bca4 RH |
598 | fclose(strfile); |
599 | strfile = fopen(strfilename, "r"); | |
59e14996 BJ |
600 | } |
601 | ||
602 | pass2() | |
603 | { | |
604 | #ifdef DEBUG | |
605 | if (debug) | |
606 | printf("\n\n\n\t\tPASS 2\n\n\n\n"); | |
607 | #endif DEBUG | |
608 | passno = 2; | |
609 | lineno = 1; | |
610 | dotp = &usedot[0]; | |
611 | txtfil = usefile[0]; /* already opened (always!) */ | |
612 | relfil = 0; /* outrel takes care of the rest */ | |
613 | initoutrel(); | |
614 | ||
ec43bca4 | 615 | inittokfile(); |
59e14996 BJ |
616 | |
617 | yyparse(); | |
618 | ||
ec43bca4 | 619 | closetokfile(); |
59e14996 BJ |
620 | } |
621 | ||
622 | fillsegments() | |
623 | { | |
624 | int locindex; | |
625 | /* | |
7a5aec15 | 626 | * Round text and data segments to FW by appending zeros |
59e14996 BJ |
627 | */ |
628 | for (locindex = 0; locindex < NLOC + NLOC; locindex++) { | |
629 | if (usefile[locindex]) { | |
630 | txtfil = usefile[locindex]; | |
631 | dotp = &usedot[locindex]; | |
7a5aec15 | 632 | while (usedot[locindex].e_xvalue & FW) |
59e14996 BJ |
633 | outb(0); |
634 | } | |
635 | } | |
636 | } | |
637 | ||
638 | reloc_syms() | |
639 | { | |
640 | u_long closerelfil(); | |
641 | /* | |
642 | * Move the relocation information to a.out | |
643 | * a_out_off is the offset so far: | |
644 | * exec + text segments + data segments | |
645 | */ | |
646 | relocfile = (BFILE *)Calloc(1,sizeof(BFILE)); | |
647 | bopen(relocfile, a_out_off); | |
648 | a_out_off += closeoutrel(relocfile); | |
649 | ||
650 | hdr.a_trsize = trsize; | |
651 | hdr.a_drsize = drsize; | |
ed84d47b BJ |
652 | if (readonlydata) { |
653 | hdr.a_text += hdr.a_data; | |
654 | hdr.a_data = 0; | |
655 | hdr.a_trsize += hdr.a_drsize; | |
656 | hdr.a_drsize = 0; | |
657 | } | |
59e14996 | 658 | /* |
28219de3 | 659 | * Output the symbol table and the string pool |
ec43bca4 RH |
660 | * |
661 | * We must first rewind the string pool file to its beginning, | |
662 | * in case it was seek'ed into for fetching ascii and asciz | |
663 | * strings. | |
59e14996 | 664 | */ |
ec43bca4 | 665 | fseek(strfile, 0, 0); |
59e14996 BJ |
666 | symwrite(relocfile); |
667 | } | |
668 | ||
669 | fix_a_out() | |
670 | { | |
f70ab843 | 671 | if (lseek(a_out_file->_file, 0L, 0) < 0L) |
59e14996 BJ |
672 | yyerror("Reposition for header rewrite fails"); |
673 | if (write(a_out_file->_file, (char *)&hdr, sizeof (struct exec)) < 0) | |
674 | yyerror("Rewrite of header fails"); | |
675 | } | |
676 | ||
677 | delexit() | |
678 | { | |
679 | delete(); | |
680 | if (passno == 2){ | |
681 | unlink(outfile); | |
682 | } | |
683 | exit(1); | |
684 | } | |
685 | ||
686 | delete() | |
687 | { | |
ec43bca4 RH |
688 | if (useVM == 0 || tokfilename[0]) |
689 | unlink(tokfilename); | |
690 | if (strfilename[0]) | |
691 | unlink(strfilename); | |
59e14996 BJ |
692 | } |
693 | ||
694 | sawabort() | |
695 | { | |
696 | char *fillinbuffer(); | |
697 | while (fillinbuffer() != (char *)0) | |
698 | continue; | |
699 | delete(); | |
700 | exit(1); /*although the previous pass will also exit non zero*/ | |
701 | } | |
702 | ||
703 | panic(fmt, a1, a2, a3, a4) | |
704 | char *fmt; | |
705 | /*VARARGS 1*/ | |
706 | { | |
707 | yyerror("Assembler panic: bad internal data structure."); | |
708 | yyerror(fmt, a1, a2, a3, a4); | |
709 | delete(); | |
710 | abort(); | |
711 | } |