Commit | Line | Data |
---|---|---|
f70ab843 RH |
1 | /* |
2 | * Copyright (c) 1982 Regents of the University of California | |
3 | */ | |
4 | #ifndef lint | |
26c6a2ae | 5 | static char sccsid[] = "@(#)asmain.c 4.10 %G%"; |
f70ab843 RH |
6 | #endif not lint |
7 | ||
59e14996 BJ |
8 | #include <stdio.h> |
9 | #include <ctype.h> | |
59e14996 | 10 | #include <signal.h> |
59e14996 BJ |
11 | |
12 | #include "as.h" | |
13 | #include "assyms.h" | |
59e14996 | 14 | #include "asscan.h" |
f70ab843 | 15 | #include "asexpr.h" |
59e14996 BJ |
16 | |
17 | #ifdef UNIX | |
26c6a2ae | 18 | #define unix_lang_name "VAX/UNIX Assembler V%G% 4.10" |
59e14996 BJ |
19 | #endif |
20 | ||
21 | #ifdef VMS | |
451260e7 | 22 | #define vms_lang_name "VAX/VMS C Assembler V1.00" |
59e14996 BJ |
23 | #endif VMS |
24 | ||
25 | /* | |
26 | * variables to manage reading the assembly source files | |
27 | */ | |
28 | char *dotsname; /*the current file name; managed by the parser*/ | |
29 | int lineno; /*current line number; managed by the parser*/ | |
100d3f3c | 30 | char **innames; /*names of the files being assembled*/ |
59e14996 BJ |
31 | int ninfiles; /*how many interesting files there are*/ |
32 | /* | |
33 | * Flags settable from the argv process argument list | |
34 | */ | |
35 | int silent = 0; /*don't complain about any errors*/ | |
36 | int savelabels = 0; /*write the labels to the a.out file*/ | |
37 | int d124 = 4; /*default allocate 4 bytes for unknown pointers*/ | |
38 | int anyerrs = 0; /*no errors yet*/ | |
f70ab843 | 39 | int anywarnings=0; /*no warnings yet*/ |
59e14996 BJ |
40 | int orgwarn = 0; /*Bad origins*/ |
41 | int passno = 1; /* current pass*/ | |
e5b9ebfb | 42 | int jxxxJUMP = 0; /* in jxxxes that branch too far, use jmp instead of brw */ |
ed84d47b | 43 | int readonlydata = 0; /* initialzed data -> text space */ |
59e14996 | 44 | |
f70ab843 RH |
45 | int nGHnumbers = 0; /* GH numbers used */ |
46 | int nGHopcodes = 0; /* GH opcodes used */ | |
47 | int nnewopcodes = 0; /* new opcodes used */ | |
48 | ||
59e14996 BJ |
49 | #ifdef DEBUG |
50 | int debug = 0; | |
51 | int toktrace = 0; | |
52 | #endif | |
53 | ||
54 | int useVM = /*put the temp file in virtual memory*/ | |
55 | #ifdef VMS | |
56 | 1; /*VMS has virtual memory (duh)*/ | |
57 | #endif VMS | |
58 | #ifdef UNIX | |
59 | 0; | |
60 | #endif | |
61 | ||
62 | char *endcore; /*where to get more symbol space*/ | |
63 | ||
64 | /* | |
65 | * Managers of the a.out file. | |
66 | */ | |
67 | struct exec hdr; | |
ed84d47b | 68 | #define MAGIC 0407 |
59e14996 BJ |
69 | u_long tsize; /* total text size */ |
70 | u_long dsize; /* total data size */ | |
71 | u_long datbase; /* base of the data segment */ | |
72 | u_long trsize; /* total text relocation size */ | |
73 | u_long drsize; /* total data relocation size */ | |
74 | ||
75 | /* | |
76 | * Information about the current segment is accumulated in | |
77 | * usedot; the most important information stored is the | |
78 | * accumulated size of each of the text and data segments | |
79 | * | |
80 | * dotp points to the correct usedot expression for the current segment | |
81 | */ | |
82 | struct exp usedot[NLOC+NLOC]; /* info about all segments */ | |
83 | struct exp *dotp; /* data/text location pointer */ | |
84 | /* | |
85 | * The inter pass temporary file is opened and closed by stdio, but | |
86 | * is written to using direct read/write, as the temporary file | |
87 | * is composed of buffers exactly BUFSIZ long. | |
88 | */ | |
89 | FILE *tmpfil; /* interpass communication file */ | |
90 | /* | |
91 | * a.out is created during the second pass. | |
92 | * It is opened by stdio, but is filled with the parallel | |
93 | * block I/O library | |
94 | */ | |
95 | char *outfile = "a.out"; | |
96 | FILE *a_out_file; | |
97 | off_t a_out_off; /* cumulative offsets for segments */ | |
98 | /* | |
99 | * The logical files containing the assembled data for each of | |
100 | * the text and data segments are | |
101 | * managed by the parallel block I/O library. | |
102 | * a.out is logically opened in many places at once to | |
103 | * receive the assembled data from the various segments as | |
104 | * it all trickles in, but is physically opened only once | |
105 | * to minimize file overhead. | |
106 | */ | |
107 | BFILE *usefile[NLOC+NLOC]; /* text/data files */ | |
108 | BFILE *txtfil; /* current text/data file */ | |
109 | /* | |
110 | * Relocation information is accumulated seperately for each | |
111 | * segment. This is required by the old loader (from BTL), | |
112 | * but not by the new loader (Bill Joy). | |
113 | * | |
114 | * However, the size of the relocation information can not be computed | |
115 | * during or after the 1st pass because the ''absoluteness' of values | |
116 | * is unknown until all locally declared symbols have been seen. | |
117 | * Thus, the size of the relocation information is only | |
118 | * known after the second pass is finished. | |
119 | * This obviates the use of the block I/O | |
120 | * library, which requires knowing the exact offsets in a.out. | |
121 | * | |
122 | * So, we save the relocation information internally (we don't | |
123 | * go to internal files to minimize overhead). | |
124 | * | |
125 | * Empirically, we studied 259 files composing the system, | |
126 | * two compilers and a compiler generator: (all of which have | |
127 | * fairly large source files) | |
128 | * | |
129 | * Number of files = 259 | |
130 | * Number of non zero text reloc files: 233 | |
131 | * Number of non zero data reloc files: 53 | |
132 | * Average text relocation = 889 | |
133 | * Average data relocation = 346 | |
134 | * Number of files > BUFSIZ text relocation = 71 | |
135 | * Number of files > BUFSIZ data relocation = 6 | |
136 | * | |
137 | * For compiled C code, there is usually one text segment and two | |
138 | * data segments; we see that allocating our own buffers and | |
139 | * doing our internal handling of relocation information will, | |
140 | * on the average, not use more memory than taken up by the buffers | |
141 | * allocated for doing file I/O in parallel to a number of file. | |
142 | * | |
143 | * If we are assembling with the -V option, we | |
144 | * use the left over token buffers from the 2nd pass, | |
145 | * otherwise, we create our own. | |
146 | * | |
147 | * When the 2nd pass is complete, closeoutrel flushes the token | |
148 | * buffers out to a BFILE. | |
149 | * | |
150 | * The internals to relbufdesc are known only in assyms.c | |
151 | * | |
152 | * outrel constructs the relocation information. | |
153 | * closeoutrel flushes the relocation information to relfil. | |
154 | */ | |
155 | struct relbufdesc *rusefile[NLOC+NLOC]; | |
156 | struct relbufdesc *relfil; /* un concatnated relocation info */ | |
157 | BFILE *relocfile; /* concatnated relocation info */ | |
158 | /* | |
159 | * Once the relocation information has been written, | |
160 | * we can write out the symbol table using the Block I/O | |
161 | * mechanisms, as we once again know the offsets into | |
162 | * the a.out file. | |
163 | * | |
164 | * We use relfil to output the symbol table information. | |
165 | */ | |
166 | ||
167 | char *tmpdirprefix = | |
168 | #ifdef UNIX | |
169 | "/tmp/"; | |
170 | #else VMS | |
171 | "/usr/tmp/"; | |
172 | #endif | |
173 | ||
174 | #define TMP_SUFFIX "asXXXXXX" | |
175 | char tmpn1[TNAMESIZE]; | |
176 | ||
177 | int delexit(); | |
178 | ||
179 | main(argc, argv) | |
180 | int argc; | |
181 | char **argv; | |
182 | { | |
f70ab843 | 183 | char *sbrk(); |
59e14996 BJ |
184 | |
185 | tmpn1[0] = 0; | |
f70ab843 | 186 | endcore = sbrk(0); |
59e14996 BJ |
187 | |
188 | argprocess(argc, argv); /* process argument lists */ | |
189 | if (anyerrs) exit(1); | |
190 | ||
191 | initialize(); | |
192 | zeroorigins(); /* set origins to zero */ | |
193 | zerolocals(); /* fix local label counters */ | |
194 | ||
195 | i_pass1(); /* open temp files, etc */ | |
196 | pass1(); /* first pass through .s files */ | |
197 | testlocals(); /* check for undefined locals */ | |
198 | if (anyerrs) delexit(); | |
199 | ||
200 | pass1_5(); /* resolve jxxx */ | |
201 | if (anyerrs) delexit(); | |
202 | ||
203 | open_a_out(); /* open a.out */ | |
7a5aec15 | 204 | roundsegments(); /* round segments to FW */ |
59e14996 BJ |
205 | build_hdr(); /* build initial header, and output */ |
206 | ||
207 | i_pass2(); /* reopen temporary file, etc */ | |
208 | pass2(); /* second pass through the virtual .s */ | |
209 | if (anyerrs) delexit(); | |
210 | ||
7a5aec15 | 211 | fillsegments(); /* fill segments with 0 to FW */ |
59e14996 BJ |
212 | reloc_syms(); /* dump relocation and symbol table */ |
213 | ||
214 | delete(); /* remove tmp file */ | |
215 | bflush(); /* close off block I/O view of a.out */ | |
216 | fix_a_out(); /* add in text and data reloc counts */ | |
217 | ||
218 | if (anyerrs == 0 && orgwarn) | |
219 | yyerror("Caution: absolute origins.\n"); | |
f70ab843 RH |
220 | |
221 | if (nGHnumbers) | |
222 | yywarning("Caution: G or H format floating point numbers"); | |
223 | if (nGHopcodes) | |
224 | yywarning("Caution: G or H format floating point operators"); | |
225 | if (nnewopcodes) | |
226 | yywarning("Caution: New Opcodes"); | |
227 | if (nGHnumbers || nGHopcodes || nnewopcodes) | |
228 | yywarning("These are not defined for all implementations of the VAX architecture.\n"); | |
229 | ||
59e14996 BJ |
230 | exit(anyerrs != 0); |
231 | } /*end of UNIX main*/ | |
232 | ||
233 | argprocess(argc, argv) | |
234 | int argc; | |
235 | char *argv[]; | |
236 | { | |
237 | register char *cp; | |
238 | ||
239 | ninfiles = 0; | |
240 | silent = 0; | |
241 | #ifdef DEBUG | |
242 | debug = 0; | |
243 | #endif | |
100d3f3c | 244 | innames = (char **)ClearCalloc(argc+1, sizeof (innames[0])); |
59e14996 BJ |
245 | dotsname = "<argv error>"; |
246 | while (argc > 1) { | |
100d3f3c BJ |
247 | if (argv[1][0] != '-') |
248 | innames[ninfiles++] = argv[1]; | |
249 | else { | |
59e14996 BJ |
250 | cp = argv[1] + 1; |
251 | /* | |
252 | * We can throw away single minus signs, so | |
253 | * that make scripts for the PDP 11 assembler work | |
254 | * on this assembler too | |
255 | */ | |
256 | while (*cp){ | |
257 | switch(*cp++){ | |
258 | default: | |
259 | yyerror("Unknown flag: %c", *--cp); | |
260 | cp++; | |
261 | break; | |
26c6a2ae RH |
262 | case 'v': |
263 | selfwhat(stdout); | |
264 | exit(1); | |
59e14996 BJ |
265 | case 'd': |
266 | d124 = *cp++ - '0'; | |
267 | if ( (d124 != 1) && (d124 != 2) && | |
268 | (d124 != 4)){ | |
269 | yyerror("-d[124] only"); | |
270 | exit(1); | |
271 | } | |
272 | break; | |
273 | case 'o': | |
274 | if (argc < 3){ | |
275 | yyerror("-o what???"); | |
276 | exit(1); | |
277 | } | |
278 | outfile = argv[2]; | |
279 | bumpone: | |
280 | argc -= 2; | |
281 | argv += 2; | |
282 | goto nextarg; | |
283 | ||
284 | case 't': | |
285 | if (argc < 3){ | |
286 | yyerror("-t what???"); | |
287 | exit(1); | |
288 | } | |
289 | tmpdirprefix = argv[2]; | |
290 | goto bumpone; | |
291 | ||
292 | case 'V': | |
293 | useVM = 1; | |
294 | break; | |
295 | case 'W': | |
296 | silent = 1; | |
297 | break; | |
298 | case 'L': | |
299 | savelabels = 1; | |
300 | break; | |
e5b9ebfb RH |
301 | case 'J': |
302 | jxxxJUMP = 1; | |
303 | break; | |
59e14996 BJ |
304 | #ifdef DEBUG |
305 | case 'D': | |
306 | debug = 1; | |
307 | break; | |
308 | case 'T': | |
309 | toktrace = 1; | |
310 | break; | |
311 | #endif | |
ed84d47b BJ |
312 | case 'R': |
313 | readonlydata = 1; | |
314 | break; | |
59e14996 BJ |
315 | } /*end of the switch*/ |
316 | } /*end of pulling out all arguments*/ | |
317 | } /*end of a flag argument*/ | |
59e14996 BJ |
318 | --argc; ++argv; |
319 | nextarg:; | |
320 | } | |
100d3f3c | 321 | /* innames[ninfiles] = 0; */ |
59e14996 | 322 | } |
26c6a2ae RH |
323 | /* |
324 | * poke through the data space and find all sccs identifiers. | |
325 | * We assume: | |
326 | * a) that extern char **environ; is the first thing in the bss | |
327 | * segment (true, if one is using the new version of cmgt.crt0.c) | |
328 | * b) that the sccsid's have not been put into text space. | |
329 | */ | |
330 | selfwhat(place) | |
331 | FILE *place; | |
332 | { | |
333 | extern char **environ; | |
334 | register char *ub; | |
335 | register char *cp; | |
336 | register char *pat; | |
337 | char *sbrk(); | |
338 | ||
339 | for (cp = (char *)&environ, ub = sbrk(0); cp < ub; cp++){ | |
340 | if (cp[0] != '@') continue; | |
341 | if (cp[1] != '(') continue; | |
342 | if (cp[2] != '#') continue; | |
343 | if (cp[3] != ')') continue; | |
344 | fputc('\t', place); | |
345 | for (cp += 4; cp < ub; cp++){ | |
346 | if (*cp == 0) break; | |
347 | if (*cp == '>') break; | |
348 | if (*cp == '\n') break; | |
349 | fputc(*cp, place); | |
350 | } | |
351 | fputc('\n', place); | |
352 | } | |
353 | } | |
59e14996 BJ |
354 | |
355 | initialize() | |
356 | { | |
357 | if (signal(SIGINT, SIG_IGN) != SIG_IGN) | |
358 | signal(SIGINT, delexit); | |
359 | /* | |
360 | * Install symbols in the table | |
361 | */ | |
362 | symtabinit(); | |
363 | syminstall(); | |
364 | /* | |
365 | * Build the expression parser accelerator token sets | |
366 | */ | |
367 | buildtokensets(); | |
368 | } | |
369 | ||
370 | zeroorigins() | |
371 | { | |
372 | register int locindex; | |
373 | /* | |
374 | * Mark usedot: the first NLOC slots are for named text segments, | |
375 | * the next for named data segments. | |
376 | */ | |
377 | for (locindex = 0; locindex < NLOC; locindex++){ | |
451260e7 RH |
378 | usedot[locindex].e_xtype = XTEXT; |
379 | usedot[NLOC + locindex].e_xtype = XDATA; | |
380 | usedot[locindex].e_xvalue = 0; | |
381 | usedot[NLOC + locindex].e_xvalue = 0; | |
59e14996 BJ |
382 | } |
383 | } | |
384 | ||
385 | zerolocals() | |
386 | { | |
387 | register int i; | |
388 | ||
389 | for (i = 0; i <= 9; i++) { | |
390 | lgensym[i] = 1; | |
391 | genref[i] = 0; | |
392 | } | |
393 | } | |
394 | ||
395 | i_pass1() | |
396 | { | |
397 | if (useVM == 0){ | |
398 | strcat(tmpn1, tmpdirprefix); | |
535449c9 RH |
399 | if (tmpdirprefix[strlen(tmpdirprefix)-1] != '/') |
400 | strcat(tmpn1, "/"); | |
f70ab843 RH |
401 | (void)strcat(tmpn1, TMP_SUFFIX); |
402 | (void)mktemp(tmpn1); | |
59e14996 BJ |
403 | tmpfil = fopen(tmpn1, "w"); |
404 | if (tmpfil==NULL) { | |
405 | yyerror("Bad pass 1 temporary file for writing %s", tmpn1); | |
406 | delexit(); | |
407 | } | |
408 | } | |
409 | ||
410 | inittmpfile(); | |
e5b9ebfb | 411 | initijxxx(); |
59e14996 BJ |
412 | } |
413 | ||
414 | pass1() | |
415 | { | |
416 | register int i; | |
417 | ||
418 | passno = 1; | |
419 | dotp = &usedot[0]; | |
420 | txtfil = (BFILE *)0; | |
421 | relfil = (struct relbufdesc *)0; | |
422 | ||
423 | if (ninfiles == 0){ /*take the input from stdin directly*/ | |
424 | lineno = 1; | |
425 | dotsname = "<stdin>"; | |
426 | ||
427 | yyparse(); | |
428 | } else { /*we have the names tanked*/ | |
429 | for (i = 0; i < ninfiles; i++){ | |
430 | new_dot_s(innames[i]); | |
431 | if (freopen(innames[i], "r", stdin) == NULL) { | |
432 | yyerror( "Can't open source file %s\n", | |
433 | innames[i]); | |
434 | exit(2); | |
435 | } | |
436 | /* stdio is NOT used to read the input characters */ | |
437 | /* we use read directly, into our own buffers */ | |
438 | yyparse(); | |
439 | } | |
440 | } | |
441 | ||
442 | closetmpfile(); /*kick out the last buffered intermediate text*/ | |
443 | } | |
444 | ||
445 | testlocals() | |
446 | { | |
447 | register int i; | |
448 | for (i = 0; i <= 9; i++) { | |
449 | if (genref[i]) | |
450 | yyerror("Reference to undefined local label %df", i); | |
451 | lgensym[i] = 1; | |
452 | genref[i] = 0; | |
453 | } | |
454 | } | |
455 | ||
456 | pass1_5() | |
457 | { | |
458 | sortsymtab(); | |
459 | #ifdef DEBUG | |
460 | if (debug) dumpsymtab(); | |
461 | #endif | |
462 | jxxxfix(); | |
463 | #ifdef DEBUG | |
464 | if (debug) dumpsymtab(); | |
465 | #endif | |
466 | } | |
467 | ||
468 | open_a_out() | |
469 | { | |
470 | /* | |
471 | * Open up the a.out file now, and get set to build | |
472 | * up offsets into it for all of the various text,data | |
473 | * text relocation and data relocation segments. | |
474 | */ | |
475 | a_out_file = fopen(outfile, "w"); | |
476 | if (a_out_file == NULL) { | |
477 | yyerror("Cannot create %s", outfile); | |
478 | delexit(); | |
479 | } | |
480 | biofd = a_out_file->_file; | |
481 | a_out_off = 0; | |
482 | } | |
483 | ||
484 | roundsegments() | |
485 | { | |
486 | register int locindex; | |
487 | register long v; | |
488 | /* | |
489 | * round and assign text segment origins | |
490 | * the exec header always goes in usefile[0] | |
491 | */ | |
492 | tsize = 0; | |
493 | for (locindex=0; locindex<NLOC; locindex++) { | |
7a5aec15 | 494 | v = round(usedot[locindex].e_xvalue, FW); |
451260e7 | 495 | usedot[locindex].e_xvalue = tsize; |
59e14996 BJ |
496 | if ((locindex == 0) || (v != 0) ){ |
497 | usefile[locindex] = (BFILE *)Calloc(1, sizeof(BFILE)); | |
498 | bopen(usefile[locindex], a_out_off); | |
499 | if (locindex == 0) | |
500 | a_out_off = sizeof (struct exec); | |
501 | } else { | |
502 | usefile[locindex] = (BFILE *)-1; | |
503 | } | |
504 | tsize += v; | |
505 | a_out_off += v; | |
506 | } | |
507 | /* | |
508 | * Round and assign data segment origins. | |
509 | */ | |
7a5aec15 | 510 | datbase = round(tsize, FW); |
59e14996 | 511 | for (locindex=0; locindex<NLOC; locindex++) { |
7a5aec15 | 512 | v = round(usedot[NLOC+locindex].e_xvalue, FW); |
451260e7 | 513 | usedot[NLOC+locindex].e_xvalue = datbase + dsize; |
59e14996 BJ |
514 | if (v != 0){ |
515 | usefile[NLOC + locindex] = (BFILE *)Calloc(1,sizeof(BFILE)); | |
516 | bopen(usefile[NLOC + locindex], a_out_off); | |
517 | } else { | |
518 | usefile[NLOC + locindex] = (BFILE *)-1; | |
519 | } | |
520 | dsize += v; | |
521 | a_out_off += v; | |
522 | } | |
523 | /* | |
524 | * Assign final values to symbols | |
525 | */ | |
526 | hdr.a_bss = dsize; | |
527 | freezesymtab(); /* this touches hdr.a_bss */ | |
528 | stabfix(); | |
529 | /* | |
530 | * Set up the relocation information "files" to | |
531 | * be zero; outrel takes care of the rest | |
532 | */ | |
533 | for (locindex = 0; locindex < NLOC + NLOC; locindex++){ | |
534 | rusefile[locindex] = (struct relbufdesc *)0; | |
535 | } | |
536 | } | |
537 | ||
538 | build_hdr() | |
539 | { | |
540 | /* | |
541 | * Except for the text and data relocation sizes, | |
542 | * calculate the final values for the header | |
543 | * | |
544 | * Write out the initial copy; we to come | |
545 | * back later and patch up a_trsize and a_drsize, | |
546 | * and overwrite this first version of the header. | |
547 | */ | |
548 | hdr.a_magic = MAGIC; | |
549 | hdr.a_text = tsize; | |
550 | hdr.a_data = dsize; | |
551 | hdr.a_bss -= dsize; | |
552 | hdr.a_syms = sizesymtab(); /* Does not include string pool length */ | |
553 | hdr.a_entry = 0; | |
554 | hdr.a_trsize = 0; | |
555 | hdr.a_drsize = 0; | |
556 | ||
557 | bwrite((char *)&hdr, sizeof(hdr), usefile[0]); | |
558 | } | |
559 | ||
560 | i_pass2() | |
561 | { | |
562 | if (useVM == 0) { | |
563 | fclose(tmpfil); | |
564 | tmpfil = fopen(tmpn1, "r"); | |
565 | if (tmpfil==NULL) { | |
566 | yyerror("Bad pass 2 temporary file for reading %s", tmpn1); | |
567 | delexit(); | |
568 | } | |
569 | } | |
570 | } | |
571 | ||
572 | pass2() | |
573 | { | |
574 | #ifdef DEBUG | |
575 | if (debug) | |
576 | printf("\n\n\n\t\tPASS 2\n\n\n\n"); | |
577 | #endif DEBUG | |
578 | passno = 2; | |
579 | lineno = 1; | |
580 | dotp = &usedot[0]; | |
581 | txtfil = usefile[0]; /* already opened (always!) */ | |
582 | relfil = 0; /* outrel takes care of the rest */ | |
583 | initoutrel(); | |
584 | ||
585 | inittmpfile(); | |
586 | ||
587 | yyparse(); | |
588 | ||
589 | closetmpfile(); | |
590 | } | |
591 | ||
592 | fillsegments() | |
593 | { | |
594 | int locindex; | |
595 | /* | |
7a5aec15 | 596 | * Round text and data segments to FW by appending zeros |
59e14996 BJ |
597 | */ |
598 | for (locindex = 0; locindex < NLOC + NLOC; locindex++) { | |
599 | if (usefile[locindex]) { | |
600 | txtfil = usefile[locindex]; | |
601 | dotp = &usedot[locindex]; | |
7a5aec15 | 602 | while (usedot[locindex].e_xvalue & FW) |
59e14996 BJ |
603 | outb(0); |
604 | } | |
605 | } | |
606 | } | |
607 | ||
608 | reloc_syms() | |
609 | { | |
610 | u_long closerelfil(); | |
611 | /* | |
612 | * Move the relocation information to a.out | |
613 | * a_out_off is the offset so far: | |
614 | * exec + text segments + data segments | |
615 | */ | |
616 | relocfile = (BFILE *)Calloc(1,sizeof(BFILE)); | |
617 | bopen(relocfile, a_out_off); | |
618 | a_out_off += closeoutrel(relocfile); | |
619 | ||
620 | hdr.a_trsize = trsize; | |
621 | hdr.a_drsize = drsize; | |
ed84d47b BJ |
622 | if (readonlydata) { |
623 | hdr.a_text += hdr.a_data; | |
624 | hdr.a_data = 0; | |
625 | hdr.a_trsize += hdr.a_drsize; | |
626 | hdr.a_drsize = 0; | |
627 | } | |
59e14996 BJ |
628 | /* |
629 | * Output the symbol table | |
630 | * and if FLEXNAMES is set, the string pool | |
631 | */ | |
632 | symwrite(relocfile); | |
633 | } | |
634 | ||
635 | fix_a_out() | |
636 | { | |
f70ab843 | 637 | if (lseek(a_out_file->_file, 0L, 0) < 0L) |
59e14996 BJ |
638 | yyerror("Reposition for header rewrite fails"); |
639 | if (write(a_out_file->_file, (char *)&hdr, sizeof (struct exec)) < 0) | |
640 | yyerror("Rewrite of header fails"); | |
641 | } | |
642 | ||
643 | delexit() | |
644 | { | |
645 | delete(); | |
646 | if (passno == 2){ | |
647 | unlink(outfile); | |
648 | } | |
649 | exit(1); | |
650 | } | |
651 | ||
652 | delete() | |
653 | { | |
654 | if (useVM == 0 || tmpn1[0]) | |
655 | unlink(tmpn1); | |
656 | } | |
657 | ||
658 | sawabort() | |
659 | { | |
660 | char *fillinbuffer(); | |
661 | while (fillinbuffer() != (char *)0) | |
662 | continue; | |
663 | delete(); | |
664 | exit(1); /*although the previous pass will also exit non zero*/ | |
665 | } | |
666 | ||
667 | panic(fmt, a1, a2, a3, a4) | |
668 | char *fmt; | |
669 | /*VARARGS 1*/ | |
670 | { | |
671 | yyerror("Assembler panic: bad internal data structure."); | |
672 | yyerror(fmt, a1, a2, a3, a4); | |
673 | delete(); | |
674 | abort(); | |
675 | } |