Commit | Line | Data |
---|---|---|
f70ab843 | 1 | /* |
bcf1365c 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 | */ |
bcf1365c | 6 | |
f70ab843 | 7 | #ifndef lint |
ca67e7b4 | 8 | static char sccsid[] = "@(#)assyms.c 5.2 (Berkeley) 10/22/87"; |
f70ab843 RH |
9 | #endif not lint |
10 | ||
5178805d BJ |
11 | #include <stdio.h> |
12 | #include <ctype.h> | |
5178805d BJ |
13 | #include "as.h" |
14 | #include "asscan.h" | |
15 | #include "assyms.h" | |
16 | ||
17 | /* | |
18 | * Managers for chunks of symbols allocated from calloc() | |
19 | * We maintain a linked list of such chunks. | |
20 | * | |
21 | */ | |
22 | struct allocbox *allochead; /*head of chunk list*/ | |
23 | struct allocbox *alloctail; /*tail*/ | |
24 | struct allocbox *newbox; /*for creating a new chunk*/ | |
25 | struct symtab *nextsym; /*next symbol free*/ | |
26 | int symsleft; /*slots left in current chunk*/ | |
27 | ||
28 | struct symtab **symptrs; | |
29 | struct symtab **symdelim[NLOC + NLOC +1]; | |
30 | struct symtab **symptrub; | |
31 | /* | |
32 | * Managers for the dynamically extendable hash table | |
33 | */ | |
34 | struct hashdallop *htab; | |
35 | ||
f70ab843 | 36 | Iptr *itab[NINST]; /*maps opcodes to instructions*/ |
5178805d BJ |
37 | /* |
38 | * Counts what went into the symbol table, so that the | |
39 | * size of the symbol table can be computed. | |
40 | */ | |
41 | int nsyms; /* total number in the symbol table */ | |
42 | int njxxx; /* number of jxxx entrys */ | |
43 | int nforgotten; /* number of symbols erroneously entered */ | |
44 | int nlabels; /* number of label entries */ | |
5178805d BJ |
45 | |
46 | /* | |
47 | * Managers of the symbol literal storage. | |
5178805d | 48 | */ |
5178805d | 49 | struct strpool *strplhead = 0; |
5178805d BJ |
50 | |
51 | symtabinit() | |
52 | { | |
53 | allochead = 0; | |
54 | alloctail = 0; | |
55 | nextsym = 0; | |
56 | symsleft = 0; | |
5178805d | 57 | strpoolalloc(); /* get the first strpool storage area */ |
5178805d BJ |
58 | htab = 0; |
59 | htaballoc(); /* get the first part of the hash table */ | |
60 | } | |
61 | ||
62 | /* | |
63 | * Install all known instructions in the symbol table | |
64 | */ | |
65 | syminstall() | |
66 | { | |
f70ab843 | 67 | register Iptr ip; |
5178805d BJ |
68 | register struct symtab **hp; |
69 | register char *p1, *p2; | |
f70ab843 RH |
70 | register int i; |
71 | ||
72 | for (i = 0; i < NINST; i++) | |
73 | itab[i] = (Iptr*)BADPOINT; | |
5178805d | 74 | |
ec43bca4 RH |
75 | for (ip = (Iptr)instab; FETCHNAME(ip)[0]; ip++) { |
76 | p1 = FETCHNAME(ip); | |
5178805d BJ |
77 | p2 = yytext; |
78 | while (*p2++ = *p1++); | |
79 | hp = lookup(0); /* 0 => don't install this*/ | |
80 | if (*hp==NULL) { | |
81 | *hp = (struct symtab *)ip; | |
451260e7 RH |
82 | if ( (ip->s_tag!=INSTn) |
83 | && (ip->s_tag!=INST0) | |
84 | && (ip->s_tag!=0)) | |
5178805d | 85 | continue; /* was pseudo-op */ |
f70ab843 RH |
86 | if (itab[ip->i_eopcode] == (Iptr*)BADPOINT){ |
87 | itab[ip->i_eopcode] = | |
88 | (Iptr*)ClearCalloc(256, sizeof(Iptr)); | |
89 | for (i = 0; i < 256; i++) | |
90 | itab[ip->i_eopcode][i] = | |
91 | (Iptr)BADPOINT; | |
92 | } | |
93 | itab[ip->i_eopcode][ip->i_popcode] = ip; | |
5178805d BJ |
94 | } |
95 | } | |
96 | } /*end of syminstall*/ | |
97 | ||
020257ec RH |
98 | #define ISLABEL(sp) \ |
99 | ( (!savelabels) \ | |
100 | && (sp->s_tag == LABELID) \ | |
101 | && (STRPLACE(sp) & STR_CORE) \ | |
102 | && (FETCHNAME(sp)[0] == 'L')) | |
5178805d BJ |
103 | /* |
104 | * Assign final values to symbols, | |
105 | * and overwrite the index field with its relative position in | |
106 | * the symbol table we give to the loader. | |
107 | */ | |
108 | extern struct exec hdr; | |
109 | ||
110 | freezesymtab() | |
111 | { | |
112 | register struct symtab *sp; | |
113 | long bs; | |
114 | register int relpos = 0; | |
115 | register struct symtab *ubsp; | |
116 | register struct allocbox *allocwalk; | |
117 | ||
118 | DECLITERATE(allocwalk, sp, ubsp) | |
119 | { | |
451260e7 | 120 | if (sp->s_tag >= IGNOREBOUND) |
5178805d BJ |
121 | continue; /*totally ignore jxxx entries */ |
122 | /* | |
123 | * Ignore stabs, but give them a symbol table index | |
124 | */ | |
451260e7 | 125 | if (sp->s_type & STABFLAG) |
5178805d | 126 | goto assignindex; |
451260e7 RH |
127 | if ((sp->s_type&XTYPE)==XUNDEF) |
128 | sp->s_type = XXTRN+XUNDEF; | |
129 | else if ((sp->s_type&XTYPE)==XDATA) | |
130 | sp->s_value += usedot[sp->s_index].e_xvalue; | |
131 | else if ((sp->s_type&XTYPE)==XTEXT) | |
132 | sp->s_value += usedot[sp->s_index].e_xvalue; | |
133 | else if ((sp->s_type&XTYPE)==XBSS) { | |
134 | bs = sp->s_value; | |
135 | sp->s_value = hdr.a_bss + datbase; | |
5178805d BJ |
136 | hdr.a_bss += bs; |
137 | } | |
138 | assignindex: | |
020257ec RH |
139 | if (!ISLABEL(sp)) |
140 | sp->s_index = relpos++; | |
5178805d BJ |
141 | } |
142 | } | |
143 | ||
5178805d BJ |
144 | /* |
145 | * For all of the stabs that had their final value undefined during pass 1 | |
146 | * and during pass 2 assign a final value. | |
147 | * We have already given stab entrys a initial approximation | |
148 | * when we constsructed the sorted symbol table. | |
149 | * Iteration order doesn't matter. | |
150 | */ | |
ac73cea0 AF |
151 | |
152 | stabfix() | |
153 | { | |
5178805d BJ |
154 | register struct symtab *sp, **cosp; |
155 | register struct symtab *p; | |
156 | ||
157 | SYMITERATE(cosp, sp){ | |
451260e7 RH |
158 | if(sp->s_ptype && (sp->s_type & STABFLAG)) { |
159 | p = sp->s_dest; | |
ac73cea0 AF |
160 | /* |
161 | * STABFLOATING indicates that the offset has been saved in s_desc, s_other | |
162 | */ | |
163 | if(sp->s_tag == STABFLOATING) { | |
164 | sp->s_value = ( ( ((unsigned char) sp->s_other) << 16) | ( (unsigned short) sp->s_desc ) ); | |
165 | sp->s_value = sp->s_value + p->s_value; | |
166 | } | |
167 | else sp->s_value = p->s_value; | |
451260e7 RH |
168 | sp->s_index = p->s_index; |
169 | sp->s_type = p->s_type; | |
ac73cea0 AF |
170 | |
171 | ||
5178805d BJ |
172 | } |
173 | } | |
174 | } | |
175 | ||
176 | char *Calloc(number, size) | |
177 | int number, size; | |
178 | { | |
179 | register char *newstuff; | |
f70ab843 RH |
180 | char *sbrk(); |
181 | newstuff = sbrk(number*size); | |
5178805d BJ |
182 | if ((int)newstuff == -1){ |
183 | yyerror("Ran out of Memory"); | |
184 | delexit(); | |
185 | } | |
186 | return(newstuff); | |
187 | } | |
188 | ||
189 | char *ClearCalloc(number, size) | |
190 | int number, size; | |
191 | { | |
192 | register char *newstuff; /* r11 */ | |
193 | register int length = number * size; /* r10 */ | |
f70ab843 RH |
194 | #ifdef lint |
195 | length = length; | |
196 | #endif length | |
5178805d BJ |
197 | newstuff = Calloc(number, size); |
198 | asm("movc5 $0, (r0), $0, r10, (r11)"); | |
199 | return(newstuff); | |
200 | } | |
201 | ||
202 | struct symtab *symalloc() | |
203 | { | |
204 | if (symsleft == 0){ | |
205 | newbox = (struct allocbox *)ClearCalloc(1,ALLOCQTY); | |
206 | symsleft = SYMDALLOP; | |
207 | nextsym = &newbox->symslots[0]; | |
5178805d BJ |
208 | if (alloctail == 0){ |
209 | allochead = alloctail = newbox; | |
210 | } else { | |
211 | alloctail->nextalloc = newbox; | |
212 | alloctail = newbox; | |
213 | } | |
214 | } | |
215 | --symsleft; | |
216 | ++nsyms; | |
5178805d BJ |
217 | return(nextsym++); |
218 | } | |
219 | ||
5178805d BJ |
220 | strpoolalloc() |
221 | { | |
222 | register struct strpool *new; | |
223 | ||
224 | new = (struct strpool *)Calloc(1, sizeof (struct strpool)); | |
225 | new->str_nalloc = 0; | |
226 | new->str_next = strplhead; | |
227 | strplhead = new; | |
228 | } | |
5178805d BJ |
229 | |
230 | symcmp(Pptr, Qptr) | |
231 | struct symtab **Pptr, **Qptr; | |
232 | { | |
233 | register struct symtab *p = *Pptr; | |
234 | register struct symtab *q = *Qptr; | |
451260e7 | 235 | if (p->s_index < q->s_index) |
5178805d | 236 | return(-1); |
451260e7 | 237 | if (p->s_index > q->s_index) |
5178805d | 238 | return(1); |
451260e7 | 239 | if (p->s_value < q->s_value) |
5178805d | 240 | return(-1); |
451260e7 | 241 | if (p->s_value > q->s_value) |
5178805d BJ |
242 | return(1); |
243 | /* | |
244 | * Force jxxx entries to virtually preceed labels defined | |
245 | * to follow the jxxxx instruction, so that bumping the | |
246 | * jxxx instruction correctly fixes up the following labels | |
247 | */ | |
451260e7 | 248 | if (p->s_tag >= IGNOREBOUND) /*p points to a jxxx*/ |
5178805d | 249 | return(-1); |
451260e7 | 250 | if (q->s_tag >= IGNOREBOUND) |
5178805d BJ |
251 | return(1); |
252 | /* | |
253 | * both are now just plain labels; the relative order doesn't | |
254 | * matter. Both can't be jxxxes, as they would have different | |
255 | * values. | |
256 | */ | |
257 | return(0); | |
258 | } /*end of symcmp*/ | |
259 | ||
260 | /* | |
261 | * We construct the auxiliary table of pointers, symptrs and | |
262 | * symdelim | |
263 | * We also assign preliminary values to stab entries that did not yet | |
264 | * have an absolute value (because they initially referred to | |
265 | * forward references). We don't worry about .stabds, as they | |
266 | * already have an estimated final value | |
267 | */ | |
268 | ||
269 | sortsymtab() | |
270 | { | |
271 | register struct symtab *sp; | |
272 | register struct symtab **cowalk; | |
273 | register struct allocbox *allocwalk; | |
274 | struct symtab *ubsp; | |
275 | int segno; | |
276 | int slotno; | |
277 | int symsin; /*number put into symptrs*/ | |
278 | ||
279 | symptrs = (struct symtab **)Calloc(nsyms + 2, sizeof *symptrs); | |
280 | /* | |
281 | * Allocate one word at the beginning of the symptr array | |
282 | * so that backwards scans through the symptr array will | |
283 | * work correctly while scanning through the zeroth segment | |
284 | */ | |
285 | *symptrs++ = 0; | |
286 | cowalk = symptrs; | |
287 | symsin = 0; | |
288 | DECLITERATE(allocwalk, sp, ubsp) { | |
451260e7 RH |
289 | if (sp->s_ptype && (sp->s_type &STABFLAG)){ |
290 | sp->s_value = sp->s_dest->s_value; | |
291 | sp->s_index = sp->s_dest->s_index; | |
5178805d BJ |
292 | } |
293 | if (symsin >= nsyms) | |
294 | yyerror("INTERNAL ERROR: overfilled symbol table indirection table"); | |
295 | *cowalk++ = sp; | |
296 | symsin++; | |
297 | } | |
298 | if (symsin != nsyms) | |
299 | yyerror("INTERNAL ERROR: installed %d syms, should have installed %d", | |
300 | symsin, nsyms); | |
301 | symptrub = &symptrs[nsyms ]; | |
302 | qsort(symptrs, nsyms, sizeof *symptrs, symcmp); | |
303 | symdelim[0] = symptrs; | |
304 | for (cowalk = symptrs, sp = *cowalk, segno = 0, slotno = 1; | |
305 | segno < NLOC + NLOC; | |
306 | segno++, slotno++){ | |
451260e7 | 307 | for (; sp && sp->s_index == segno; sp = *++cowalk); |
5178805d BJ |
308 | symdelim[slotno] = cowalk; /*forms the ub delimeter*/ |
309 | } | |
310 | } /*end of sortsymtab*/ | |
311 | ||
312 | #ifdef DEBUG | |
313 | dumpsymtab() | |
314 | { | |
315 | register int segno; | |
316 | register struct symtab *sp, **cosp, *ub; | |
317 | char *tagstring(); | |
318 | ||
319 | printf("Symbol Table dump:\n"); | |
320 | for (segno = 0; segno < NLOC + NLOC; segno++){ | |
321 | printf("Segment number: %d\n", segno); | |
322 | SEGITERATE(segno, 0, 0, cosp, sp, ub, ++){ | |
5178805d | 323 | printf("\tSeg: %d \"%s\" value: %d index: %d tag %s\n", |
ec43bca4 | 324 | segno, FETCHNAME(sp), |
451260e7 RH |
325 | sp->s_value, sp->s_index, |
326 | tagstring(sp->s_tag)); | |
5178805d | 327 | printf("\t\ttype: %d jxbump %d jxfear: %d\n", |
451260e7 | 328 | sp->s_type, sp->s_jxbump, sp->s_jxfear); |
5178805d BJ |
329 | } |
330 | printf("\n\n"); | |
331 | } | |
332 | } | |
333 | ||
334 | static char tagbuff[4]; | |
335 | ||
336 | char *tagstring(tag) | |
337 | unsigned char tag; | |
338 | { | |
339 | switch(tag){ | |
340 | case JXACTIVE: return("active"); | |
341 | case JXNOTYET: return("notyet"); | |
342 | case JXALIGN: return("align"); | |
343 | case JXQUESTIONABLE: return("jxquestionable"); | |
344 | case JXINACTIVE: return("inactive"); | |
345 | case JXTUNNEL: return("tunnel"); | |
346 | case OBSOLETE: return("obsolete"); | |
347 | case IGNOREBOUND: return("ignorebound"); | |
348 | case STABFLOATING: return("stabfloating"); | |
349 | case STABFIXED: return("stabfixed"); | |
350 | case LABELID: return("labelid"); | |
351 | case OKTOBUMP: return("oktobump"); | |
352 | case ISET: return("iset"); | |
353 | case ILSYM: return("ilsym"); | |
6521d648 | 354 | default: (void)sprintf(tagbuff,"%d", tag); |
5178805d BJ |
355 | return(tagbuff); |
356 | } | |
357 | } | |
358 | #endif DEBUG | |
359 | ||
360 | htaballoc() | |
361 | { | |
362 | register struct hashdallop *new; | |
363 | new = (struct hashdallop *)ClearCalloc(1, sizeof (struct hashdallop)); | |
364 | if (htab == 0) | |
365 | htab = new; | |
366 | else { /* add AFTER the 1st slot */ | |
367 | new->h_next = htab->h_next; | |
368 | htab->h_next = new; | |
369 | } | |
370 | } | |
371 | ||
372 | #define HASHCLOGGED (NHASH / 2) | |
373 | ||
374 | /* | |
375 | * Lookup a symbol stored in extern yytext. | |
376 | * All strings passed in via extern yytext had better have | |
377 | * a trailing null. Strings are placed in yytext for hashing by | |
378 | * syminstall() and by yylex(); | |
379 | * | |
380 | * We take pains to avoid function calls; this functdion | |
381 | * is called quite frequently, and the calls overhead | |
382 | * in the vax contributes significantly to the overall | |
383 | * execution speed of as. | |
384 | */ | |
385 | struct symtab **lookup(instflg) | |
386 | int instflg; /* 0: don't install */ | |
387 | { | |
388 | static int initialprobe; | |
389 | register struct symtab **hp; | |
390 | register char *from; | |
391 | register char *to; | |
392 | register int len; | |
393 | register int nprobes; | |
ec43bca4 RH |
394 | static struct hashdallop *hdallop; |
395 | static struct symtab **emptyslot; | |
396 | static struct hashdallop *emptyhd; | |
397 | static struct symtab **hp_ub; | |
5178805d BJ |
398 | |
399 | emptyslot = 0; | |
400 | for (nprobes = 0, from = yytext; | |
401 | *from; | |
402 | nprobes <<= 2, nprobes += *from++) | |
403 | continue; | |
404 | nprobes += from[-1] << 5; | |
405 | nprobes %= NHASH; | |
406 | if (nprobes < 0) | |
407 | nprobes += NHASH; | |
408 | ||
409 | initialprobe = nprobes; | |
410 | for (hdallop = htab; hdallop != 0; hdallop = hdallop->h_next){ | |
411 | for (hp = &(hdallop->h_htab[initialprobe]), | |
412 | nprobes = 1, | |
413 | hp_ub = &(hdallop->h_htab[NHASH]); | |
414 | (*hp) && (nprobes < NHASH); | |
415 | hp += nprobes, | |
416 | hp -= (hp >= hp_ub) ? NHASH:0, | |
417 | nprobes += 2) | |
418 | { | |
419 | from = yytext; | |
ec43bca4 | 420 | to = FETCHNAME(*hp); |
5178805d BJ |
421 | while (*from && *to) |
422 | if (*from++ != *to++) | |
423 | goto nextprobe; | |
424 | if (*to == *from) /*assert both are == 0*/ | |
425 | return(hp); | |
28219de3 | 426 | nextprobe: ; |
5178805d BJ |
427 | } |
428 | if (*hp == 0 && emptyslot == 0 && | |
429 | hdallop->h_nused < HASHCLOGGED) { | |
430 | emptyslot = hp; | |
431 | emptyhd = hdallop; | |
432 | } | |
433 | } | |
434 | if (emptyslot == 0) { | |
435 | htaballoc(); | |
436 | hdallop = htab->h_next; /* aren't we smart! */ | |
437 | hp = &hdallop->h_htab[initialprobe]; | |
438 | } else { | |
439 | hdallop = emptyhd; | |
440 | hp = emptyslot; | |
441 | } | |
442 | if (instflg) { | |
443 | *hp = symalloc(); | |
444 | hdallop->h_nused++; | |
ad67d5e5 | 445 | for (from = yytext, len = 0; *from++; len++) |
5178805d | 446 | continue; |
ffe89e04 | 447 | (*hp)->s_name = (char *)savestr(yytext, len + 1, STR_BOTH); |
5178805d BJ |
448 | } |
449 | return(hp); | |
450 | } /*end of lookup*/ | |
ad67d5e5 | 451 | /* |
ffe89e04 | 452 | * save a string str with len in the places indicated by place |
ad67d5e5 | 453 | */ |
ffe89e04 | 454 | struct strdesc *savestr(str, len, place) |
ad67d5e5 | 455 | char *str; |
ffe89e04 RH |
456 | int len; |
457 | int place; | |
5178805d | 458 | { |
ec43bca4 RH |
459 | reg struct strdesc *res; |
460 | int tlen; | |
ffe89e04 RH |
461 | /* |
462 | * Compute the total length of the record to live in core | |
463 | */ | |
ec43bca4 | 464 | tlen = sizeof(struct strdesc) - sizeof(res->sd_string); |
ffe89e04 RH |
465 | if (place & STR_CORE) |
466 | tlen += len; | |
467 | /* | |
468 | * See if there is enough space for the record, | |
469 | * and allocate the record. | |
470 | */ | |
ec43bca4 | 471 | if (tlen >= (STRPOOLDALLOP - strplhead->str_nalloc)) |
5178805d | 472 | strpoolalloc(); |
ec43bca4 | 473 | res = (struct strdesc *)(strplhead->str_names + strplhead->str_nalloc); |
ffe89e04 RH |
474 | /* |
475 | * Save the string information that is always present | |
476 | */ | |
477 | res->sd_stroff = strfilepos; | |
478 | res->sd_strlen = len; | |
479 | res->sd_place = place; | |
480 | /* | |
481 | * Now, save the string itself. If str is null, then | |
482 | * the characters have already been dumped to the file | |
483 | */ | |
484 | if ((place & STR_CORE) && str) | |
485 | movestr(res[0].sd_string, str, len); | |
486 | if (place & STR_FILE){ | |
487 | if (str){ | |
488 | fwrite(str, 1, len, strfile); | |
489 | } | |
490 | strfilepos += len; | |
491 | } | |
492 | /* | |
493 | * Adjust the in core string pool size | |
494 | */ | |
ec43bca4 | 495 | strplhead->str_nalloc += tlen; |
ad67d5e5 | 496 | return(res); |
5178805d | 497 | } |
5178805d BJ |
498 | /* |
499 | * The relocation information is saved internally in an array of | |
500 | * lists of relocation buffers. The relocation buffers are | |
501 | * exactly the same size as a token buffer; if we use VM for the | |
502 | * temporary file we reclaim this storage, otherwise we create | |
503 | * them by mallocing. | |
504 | */ | |
505 | #define RELBUFLG TOKBUFLG | |
506 | #define NRELOC ((TOKBUFLG - \ | |
507 | (sizeof (int) + sizeof (struct relbufdesc *)) \ | |
508 | ) / (sizeof (struct relocation_info))) | |
509 | ||
510 | struct relbufdesc{ | |
511 | int rel_count; | |
512 | struct relbufdesc *rel_next; | |
513 | struct relocation_info rel_reloc[NRELOC]; | |
514 | }; | |
515 | extern struct relbufdesc *tok_free; | |
516 | #define rel_free tok_free | |
517 | static struct relbufdesc *rel_temp; | |
451260e7 RH |
518 | struct relocation_info r_can_1PC; |
519 | struct relocation_info r_can_0PC; | |
5178805d BJ |
520 | |
521 | initoutrel() | |
522 | { | |
451260e7 RH |
523 | r_can_0PC.r_address = 0; |
524 | r_can_0PC.r_symbolnum = 0; | |
525 | r_can_0PC.r_pcrel = 0; | |
526 | r_can_0PC.r_length = 0; | |
527 | r_can_0PC.r_extern = 0; | |
528 | ||
529 | r_can_1PC = r_can_0PC; | |
5178805d BJ |
530 | r_can_1PC.r_pcrel = 1; |
531 | } | |
532 | ||
5b3c350a RH |
533 | outrel(xp, reloc_how) |
534 | register struct exp *xp; | |
f70ab843 | 535 | int reloc_how; /* TYPB..TYPH + (possibly)RELOC_PCREL */ |
5178805d | 536 | { |
5b3c350a RH |
537 | struct relocation_info reloc; |
538 | register int x_type_mask; | |
ad67d5e5 | 539 | int pcrel; |
5178805d | 540 | |
5b3c350a RH |
541 | x_type_mask = xp->e_xtype & ~XFORW; |
542 | pcrel = reloc_how & RELOC_PCREL; | |
543 | reloc_how &= ~RELOC_PCREL; | |
544 | ||
5178805d BJ |
545 | if (bitoff&07) |
546 | yyerror("Padding error"); | |
5b3c350a | 547 | if (x_type_mask == XUNDEF) |
5178805d BJ |
548 | yyerror("Undefined reference"); |
549 | ||
5b3c350a RH |
550 | if ( (x_type_mask != XABS) || pcrel ) { |
551 | if (ty_NORELOC[reloc_how]) | |
f70ab843 | 552 | yyerror("Illegal Relocation of floating or large int number."); |
5b3c350a | 553 | reloc = pcrel ? r_can_1PC : r_can_0PC; |
451260e7 | 554 | reloc.r_address = dotp->e_xvalue - |
030352e9 | 555 | ( (dotp < &usedot[NLOC] || readonlydata) ? 0 : datbase ); |
5b3c350a RH |
556 | reloc.r_length = ty_nlg[reloc_how]; |
557 | switch(x_type_mask){ | |
5178805d | 558 | case XXTRN | XUNDEF: |
5b3c350a | 559 | reloc.r_symbolnum = xp->e_xname->s_index; |
5178805d BJ |
560 | reloc.r_extern = 1; |
561 | break; | |
562 | default: | |
5b3c350a RH |
563 | if (readonlydata && (x_type_mask&~XXTRN) == XDATA) |
564 | x_type_mask = XTEXT | (x_type_mask&XXTRN); | |
565 | reloc.r_symbolnum = x_type_mask; | |
5178805d BJ |
566 | break; |
567 | } | |
568 | if ( (relfil == 0) || (relfil->rel_count >= NRELOC) ){ | |
569 | if (rel_free){ | |
570 | rel_temp = rel_free; | |
571 | rel_free = rel_temp->rel_next; | |
572 | } else { | |
573 | rel_temp = (struct relbufdesc *) | |
574 | Calloc(1,sizeof (struct relbufdesc)); | |
575 | } | |
576 | rel_temp->rel_count = 0; | |
577 | rel_temp->rel_next = relfil; | |
578 | relfil = rusefile[dotp - &usedot[0]] = rel_temp; | |
579 | } | |
580 | relfil->rel_reloc[relfil->rel_count++] = reloc; | |
581 | } | |
582 | /* | |
583 | * write the unrelocated value to the text file | |
584 | */ | |
5b3c350a RH |
585 | dotp->e_xvalue += ty_nbyte[reloc_how]; |
586 | if (pcrel) | |
587 | xp->e_xvalue -= dotp->e_xvalue; | |
f70ab843 RH |
588 | switch(reloc_how){ |
589 | case TYPO: | |
590 | case TYPQ: | |
591 | ||
592 | case TYPF: | |
593 | case TYPD: | |
594 | case TYPG: | |
595 | case TYPH: | |
596 | bignumwrite(xp->e_number, reloc_how); | |
597 | break; | |
598 | ||
599 | default: | |
600 | bwrite((char *)&(xp->e_xvalue), ty_nbyte[reloc_how], txtfil); | |
601 | break; | |
602 | } | |
5178805d BJ |
603 | } |
604 | /* | |
605 | * Flush out all of the relocation information. | |
606 | * Note that the individual lists of buffers are in | |
607 | * reverse order, so we must reverse them | |
608 | */ | |
609 | off_t closeoutrel(relocfile) | |
610 | BFILE *relocfile; | |
611 | { | |
612 | int locindex; | |
613 | u_long Closeoutrel(); | |
614 | ||
615 | trsize = 0; | |
616 | for (locindex = 0; locindex < NLOC; locindex++){ | |
617 | trsize += Closeoutrel(rusefile[locindex], relocfile); | |
618 | } | |
619 | drsize = 0; | |
620 | for (locindex = 0; locindex < NLOC; locindex++){ | |
621 | drsize += Closeoutrel(rusefile[NLOC + locindex], relocfile); | |
622 | } | |
623 | return(trsize + drsize); | |
624 | } | |
625 | ||
626 | u_long Closeoutrel(relfil, relocfile) | |
627 | struct relbufdesc *relfil; | |
628 | BFILE *relocfile; | |
629 | { | |
630 | u_long tail; | |
631 | if (relfil == 0) | |
632 | return(0L); | |
633 | tail = Closeoutrel(relfil->rel_next, relocfile); | |
634 | bwrite((char *)&relfil->rel_reloc[0], | |
635 | relfil->rel_count * sizeof (struct relocation_info), | |
636 | relocfile); | |
637 | return(tail + relfil->rel_count * sizeof (struct relocation_info)); | |
638 | } | |
639 | ||
451260e7 | 640 | #define NOUTSYMS (nsyms - njxxx - nforgotten - (savelabels ? 0 : nlabels)) |
5178805d BJ |
641 | int sizesymtab() |
642 | { | |
451260e7 | 643 | return (sizeof (struct nlist) * NOUTSYMS); |
5178805d | 644 | } |
5178805d BJ |
645 | /* |
646 | * Write out n symbols to file f, beginning at p | |
647 | * ignoring symbols that are obsolete, jxxx instructions, and | |
648 | * possibly, labels | |
649 | */ | |
5178805d BJ |
650 | int symwrite(symfile) |
651 | BFILE *symfile; | |
652 | { | |
ec43bca4 RH |
653 | int symsout; /*those actually written*/ |
654 | int symsdesired = NOUTSYMS; | |
655 | reg struct symtab *sp, *ub; | |
ec43bca4 | 656 | char *name; /* temp to save the name */ |
020257ec | 657 | int totalstr; |
451260e7 RH |
658 | /* |
659 | * We use sp->s_index to hold the length of the | |
660 | * name; it isn't used for anything else | |
661 | */ | |
5178805d BJ |
662 | register struct allocbox *allocwalk; |
663 | ||
664 | symsout = 0; | |
020257ec RH |
665 | totalstr = sizeof(totalstr); |
666 | DECLITERATE(allocwalk, sp, ub) { | |
451260e7 | 667 | if (sp->s_tag >= IGNOREBOUND) |
5178805d | 668 | continue; |
020257ec | 669 | if (ISLABEL(sp)) |
5178805d BJ |
670 | continue; |
671 | symsout++; | |
451260e7 | 672 | name = sp->s_name; /* save pointer */ |
ad67d5e5 RH |
673 | /* |
674 | * the length of the symbol table string | |
020257ec RH |
675 | * always includes the trailing null; |
676 | * blast the pointer to its a.out value. | |
ad67d5e5 | 677 | */ |
ec43bca4 | 678 | if (sp->s_name && (sp->s_index = STRLEN(sp))){ |
020257ec RH |
679 | sp->s_nmx = totalstr; |
680 | totalstr += sp->s_index; | |
451260e7 | 681 | } else { |
ad67d5e5 | 682 | sp->s_nmx = 0; |
451260e7 | 683 | } |
020257ec RH |
684 | if (sp->s_ptype != 0) |
685 | sp->s_type = sp->s_ptype; | |
686 | else | |
687 | sp->s_type = (sp->s_type & (~XFORW)); | |
030352e9 BJ |
688 | if (readonlydata && (sp->s_type&~N_EXT) == N_DATA) |
689 | sp->s_type = N_TEXT | (sp->s_type & N_EXT); | |
f70ab843 | 690 | bwrite((char *)&sp->s_nm, sizeof (struct nlist), symfile); |
451260e7 | 691 | sp->s_name = name; /* restore pointer */ |
5178805d BJ |
692 | } |
693 | if (symsout != symsdesired) | |
694 | yyerror("INTERNAL ERROR: Wrote %d symbols, wanted to write %d symbols\n", | |
695 | symsout, symsdesired); | |
5178805d | 696 | /* |
020257ec RH |
697 | * Construct the string pool from the symbols that were written, |
698 | * possibly fetching from the string file if the string | |
699 | * is not core resident. | |
5178805d | 700 | */ |
020257ec RH |
701 | bwrite(&totalstr, sizeof(totalstr), symfile); |
702 | symsout = 0; | |
703 | DECLITERATE(allocwalk, sp, ub) { | |
704 | if (sp->s_tag >= IGNOREBOUND) | |
705 | continue; | |
706 | if (ISLABEL(sp)) | |
707 | continue; | |
708 | symsout++; | |
709 | if (STRLEN(sp) > 0){ | |
710 | if (STRPLACE(sp) & STR_CORE){ | |
711 | bwrite(FETCHNAME(sp), STRLEN(sp), symfile); | |
712 | } else if (STRPLACE(sp) & STR_FILE){ | |
713 | char rbuf[2048]; | |
714 | int left, nread; | |
715 | fseek(strfile, STROFF(sp), 0); | |
716 | for (left = STRLEN(sp); left > 0; left -= nread){ | |
717 | nread = fread(rbuf, sizeof(char), | |
718 | min(sizeof(rbuf), left), strfile); | |
719 | if (nread == 0) | |
720 | break; | |
721 | bwrite(rbuf, nread, symfile); | |
722 | } | |
723 | } | |
ad67d5e5 | 724 | } |
5178805d | 725 | } |
020257ec RH |
726 | if (symsout != symsdesired) |
727 | yyerror("INTERNAL ERROR: Wrote %d strings, wanted %d\n", | |
728 | symsout, symsdesired); | |
5178805d | 729 | } |