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1 | /* |
2 | * Copyright (c) 1988, 1989, 1990 The Regents of the University of California. | |
3 | * Copyright (c) 1988, 1989 by Adam de Boor | |
4 | * Copyright (c) 1989 by Berkeley Softworks | |
5 | * All rights reserved. | |
6 | * | |
7 | * This code is derived from software contributed to Berkeley by | |
8 | * Adam de Boor. | |
9 | * | |
87198c0c | 10 | * %sccs.include.redist.c% |
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11 | */ |
12 | ||
13 | #ifndef lint | |
fc46faab | 14 | static char sccsid[] = "@(#)targ.c 5.8 (Berkeley) %G%"; |
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15 | #endif /* not lint */ |
16 | ||
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17 | /*- |
18 | * targ.c -- | |
19 | * Functions for maintaining the Lst allTargets. Target nodes are | |
20 | * kept in two structures: a Lst, maintained by the list library, and a | |
21 | * hash table, maintained by the hash library. | |
22 | * | |
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23 | * Interface: |
24 | * Targ_Init Initialization procedure. | |
25 | * | |
26 | * Targ_NewGN Create a new GNode for the passed target | |
27 | * (string). The node is *not* placed in the | |
28 | * hash table, though all its fields are | |
29 | * initialized. | |
30 | * | |
31 | * Targ_FindNode Find the node for a given target, creating | |
32 | * and storing it if it doesn't exist and the | |
33 | * flags are right (TARG_CREATE) | |
34 | * | |
35 | * Targ_FindList Given a list of names, find nodes for all | |
36 | * of them. If a name doesn't exist and the | |
37 | * TARG_NOCREATE flag was given, an error message | |
38 | * is printed. Else, if a name doesn't exist, | |
39 | * its node is created. | |
40 | * | |
41 | * Targ_Ignore Return TRUE if errors should be ignored when | |
42 | * creating the given target. | |
43 | * | |
44 | * Targ_Silent Return TRUE if we should be silent when | |
45 | * creating the given target. | |
46 | * | |
47 | * Targ_Precious Return TRUE if the target is precious and | |
48 | * should not be removed if we are interrupted. | |
49 | * | |
50 | * Debugging: | |
51 | * Targ_PrintGraph Print out the entire graphm all variables | |
52 | * and statistics for the directory cache. Should | |
53 | * print something for suffixes, too, but... | |
54 | */ | |
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55 | |
56 | #include <stdio.h> | |
57 | #include <time.h> | |
58 | #include "make.h" | |
59 | #include "hash.h" | |
60 | ||
61 | static Lst allTargets; /* the list of all targets found so far */ | |
62 | static Hash_Table targets; /* a hash table of same */ | |
63 | ||
64 | #define HTSIZE 191 /* initial size of hash table */ | |
65 | ||
66 | /*- | |
67 | *----------------------------------------------------------------------- | |
68 | * Targ_Init -- | |
69 | * Initialize this module | |
70 | * | |
71 | * Results: | |
72 | * None | |
73 | * | |
74 | * Side Effects: | |
75 | * The allTargets list and the targets hash table are initialized | |
76 | *----------------------------------------------------------------------- | |
77 | */ | |
78 | void | |
79 | Targ_Init () | |
80 | { | |
81 | allTargets = Lst_Init (FALSE); | |
fc46faab | 82 | Hash_InitTable (&targets, HTSIZE); |
ab950546 | 83 | } |
182ca07d | 84 | |
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85 | /*- |
86 | *----------------------------------------------------------------------- | |
87 | * Targ_NewGN -- | |
88 | * Create and initialize a new graph node | |
89 | * | |
90 | * Results: | |
91 | * An initialized graph node with the name field filled with a copy | |
92 | * of the passed name | |
93 | * | |
94 | * Side Effects: | |
95 | * None. | |
96 | *----------------------------------------------------------------------- | |
97 | */ | |
98 | GNode * | |
99 | Targ_NewGN (name) | |
100 | char *name; /* the name to stick in the new node */ | |
101 | { | |
102 | register GNode *gn; | |
103 | ||
54527040 | 104 | gn = (GNode *) emalloc (sizeof (GNode)); |
182ca07d | 105 | gn->name = strdup (name); |
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106 | gn->path = (char *) 0; |
107 | if (name[0] == '-' && name[1] == 'l') { | |
108 | gn->type = OP_LIB; | |
109 | } else { | |
110 | gn->type = 0; | |
111 | } | |
112 | gn->unmade = 0; | |
113 | gn->make = FALSE; | |
114 | gn->made = UNMADE; | |
115 | gn->childMade = FALSE; | |
116 | gn->mtime = gn->cmtime = 0; | |
117 | gn->iParents = Lst_Init (FALSE); | |
118 | gn->cohorts = Lst_Init (FALSE); | |
119 | gn->parents = Lst_Init (FALSE); | |
120 | gn->children = Lst_Init (FALSE); | |
121 | gn->successors = Lst_Init(FALSE); | |
122 | gn->preds = Lst_Init(FALSE); | |
123 | gn->context = Lst_Init (FALSE); | |
124 | gn->commands = Lst_Init (FALSE); | |
125 | ||
126 | return (gn); | |
127 | } | |
182ca07d | 128 | |
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129 | /*- |
130 | *----------------------------------------------------------------------- | |
131 | * Targ_FindNode -- | |
132 | * Find a node in the list using the given name for matching | |
133 | * | |
134 | * Results: | |
135 | * The node in the list if it was. If it wasn't, return NILGNODE of | |
136 | * flags was TARG_NOCREATE or the newly created and initialized node | |
137 | * if it was TARG_CREATE | |
138 | * | |
139 | * Side Effects: | |
140 | * Sometimes a node is created and added to the list | |
141 | *----------------------------------------------------------------------- | |
142 | */ | |
143 | GNode * | |
144 | Targ_FindNode (name, flags) | |
145 | char *name; /* the name to find */ | |
146 | int flags; /* flags governing events when target not | |
147 | * found */ | |
148 | { | |
149 | GNode *gn; /* node in that element */ | |
150 | Hash_Entry *he; /* New or used hash entry for node */ | |
151 | Boolean isNew; /* Set TRUE if Hash_CreateEntry had to create */ | |
152 | /* an entry for the node */ | |
153 | ||
154 | ||
155 | if (flags & TARG_CREATE) { | |
156 | he = Hash_CreateEntry (&targets, name, &isNew); | |
157 | if (isNew) { | |
158 | gn = Targ_NewGN (name); | |
159 | Hash_SetValue (he, gn); | |
160 | (void) Lst_AtEnd (allTargets, (ClientData)gn); | |
161 | } | |
162 | } else { | |
163 | he = Hash_FindEntry (&targets, name); | |
164 | } | |
165 | ||
166 | if (he == (Hash_Entry *) NULL) { | |
167 | return (NILGNODE); | |
168 | } else { | |
169 | return ((GNode *) Hash_GetValue (he)); | |
170 | } | |
171 | } | |
182ca07d | 172 | |
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173 | /*- |
174 | *----------------------------------------------------------------------- | |
175 | * Targ_FindList -- | |
176 | * Make a complete list of GNodes from the given list of names | |
177 | * | |
178 | * Results: | |
179 | * A complete list of graph nodes corresponding to all instances of all | |
180 | * the names in names. | |
181 | * | |
182 | * Side Effects: | |
183 | * If flags is TARG_CREATE, nodes will be created for all names in | |
184 | * names which do not yet have graph nodes. If flags is TARG_NOCREATE, | |
185 | * an error message will be printed for each name which can't be found. | |
186 | * ----------------------------------------------------------------------- | |
187 | */ | |
188 | Lst | |
189 | Targ_FindList (names, flags) | |
190 | Lst names; /* list of names to find */ | |
191 | int flags; /* flags used if no node is found for a given | |
192 | * name */ | |
193 | { | |
194 | Lst nodes; /* result list */ | |
195 | register LstNode ln; /* name list element */ | |
196 | register GNode *gn; /* node in tLn */ | |
197 | char *name; | |
198 | ||
199 | nodes = Lst_Init (FALSE); | |
200 | ||
201 | if (Lst_Open (names) == FAILURE) { | |
202 | return (nodes); | |
203 | } | |
204 | while ((ln = Lst_Next (names)) != NILLNODE) { | |
205 | name = (char *)Lst_Datum(ln); | |
206 | gn = Targ_FindNode (name, flags); | |
207 | if (gn != NILGNODE) { | |
208 | /* | |
209 | * Note: Lst_AtEnd must come before the Lst_Concat so the nodes | |
210 | * are added to the list in the order in which they were | |
211 | * encountered in the makefile. | |
212 | */ | |
213 | (void) Lst_AtEnd (nodes, (ClientData)gn); | |
214 | if (gn->type & OP_DOUBLEDEP) { | |
215 | (void)Lst_Concat (nodes, gn->cohorts, LST_CONCNEW); | |
216 | } | |
217 | } else if (flags == TARG_NOCREATE) { | |
218 | Error ("\"%s\" -- target unknown.", name); | |
219 | } | |
220 | } | |
221 | Lst_Close (names); | |
222 | return (nodes); | |
223 | } | |
182ca07d | 224 | |
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225 | /*- |
226 | *----------------------------------------------------------------------- | |
227 | * Targ_Ignore -- | |
228 | * Return true if should ignore errors when creating gn | |
229 | * | |
230 | * Results: | |
231 | * TRUE if should ignore errors | |
232 | * | |
233 | * Side Effects: | |
234 | * None | |
235 | *----------------------------------------------------------------------- | |
236 | */ | |
237 | Boolean | |
238 | Targ_Ignore (gn) | |
239 | GNode *gn; /* node to check for */ | |
240 | { | |
241 | if (ignoreErrors || gn->type & OP_IGNORE) { | |
242 | return (TRUE); | |
243 | } else { | |
244 | return (FALSE); | |
245 | } | |
246 | } | |
182ca07d | 247 | |
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248 | /*- |
249 | *----------------------------------------------------------------------- | |
250 | * Targ_Silent -- | |
251 | * Return true if be silent when creating gn | |
252 | * | |
253 | * Results: | |
254 | * TRUE if should be silent | |
255 | * | |
256 | * Side Effects: | |
257 | * None | |
258 | *----------------------------------------------------------------------- | |
259 | */ | |
260 | Boolean | |
261 | Targ_Silent (gn) | |
262 | GNode *gn; /* node to check for */ | |
263 | { | |
264 | if (beSilent || gn->type & OP_SILENT) { | |
265 | return (TRUE); | |
266 | } else { | |
267 | return (FALSE); | |
268 | } | |
269 | } | |
182ca07d | 270 | |
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271 | /*- |
272 | *----------------------------------------------------------------------- | |
273 | * Targ_Precious -- | |
274 | * See if the given target is precious | |
275 | * | |
276 | * Results: | |
277 | * TRUE if it is precious. FALSE otherwise | |
278 | * | |
279 | * Side Effects: | |
280 | * None | |
281 | *----------------------------------------------------------------------- | |
282 | */ | |
283 | Boolean | |
284 | Targ_Precious (gn) | |
285 | GNode *gn; /* the node to check */ | |
286 | { | |
287 | if (allPrecious || (gn->type & (OP_PRECIOUS|OP_DOUBLEDEP))) { | |
288 | return (TRUE); | |
289 | } else { | |
290 | return (FALSE); | |
291 | } | |
292 | } | |
182ca07d | 293 | |
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294 | /******************* DEBUG INFO PRINTING ****************/ |
295 | ||
296 | static GNode *mainTarg; /* the main target, as set by Targ_SetMain */ | |
297 | /*- | |
298 | *----------------------------------------------------------------------- | |
299 | * Targ_SetMain -- | |
300 | * Set our idea of the main target we'll be creating. Used for | |
301 | * debugging output. | |
302 | * | |
303 | * Results: | |
304 | * None. | |
305 | * | |
306 | * Side Effects: | |
307 | * "mainTarg" is set to the main target's node. | |
308 | *----------------------------------------------------------------------- | |
309 | */ | |
310 | void | |
311 | Targ_SetMain (gn) | |
312 | GNode *gn; /* The main target we'll create */ | |
313 | { | |
314 | mainTarg = gn; | |
315 | } | |
316 | ||
317 | static int | |
318 | TargPrintName (gn, ppath) | |
319 | GNode *gn; | |
320 | int ppath; | |
321 | { | |
322 | printf ("%s ", gn->name); | |
323 | #ifdef notdef | |
324 | if (ppath) { | |
325 | if (gn->path) { | |
326 | printf ("[%s] ", gn->path); | |
327 | } | |
328 | if (gn == mainTarg) { | |
329 | printf ("(MAIN NAME) "); | |
330 | } | |
331 | } | |
332 | #endif notdef | |
333 | return (0); | |
334 | } | |
335 | ||
336 | ||
337 | int | |
338 | Targ_PrintCmd (cmd) | |
339 | char *cmd; | |
340 | { | |
341 | printf ("\t%s\n", cmd); | |
342 | return (0); | |
343 | } | |
344 | ||
345 | /*- | |
346 | *----------------------------------------------------------------------- | |
347 | * Targ_FmtTime -- | |
348 | * Format a modification time in some reasonable way and return it. | |
349 | * | |
350 | * Results: | |
351 | * The time reformatted. | |
352 | * | |
353 | * Side Effects: | |
354 | * The time is placed in a static area, so it is overwritten | |
355 | * with each call. | |
356 | * | |
357 | *----------------------------------------------------------------------- | |
358 | */ | |
359 | char * | |
360 | Targ_FmtTime (time) | |
361 | int time; | |
362 | { | |
363 | struct tm *parts; | |
364 | static char buf[40]; | |
365 | static char *months[] = { | |
366 | "Jan", "Feb", "Mar", "Apr", "May", "Jun", | |
367 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" | |
368 | }; | |
369 | ||
370 | parts = localtime(&time); | |
371 | ||
372 | sprintf (buf, "%d:%02d:%02d %s %d, 19%d", | |
373 | parts->tm_hour, parts->tm_min, parts->tm_sec, | |
374 | months[parts->tm_mon], parts->tm_mday, parts->tm_year); | |
375 | return(buf); | |
376 | } | |
377 | ||
378 | /*- | |
379 | *----------------------------------------------------------------------- | |
380 | * Targ_PrintType -- | |
381 | * Print out a type field giving only those attributes the user can | |
382 | * set. | |
383 | * | |
384 | * Results: | |
385 | * | |
386 | * Side Effects: | |
387 | * | |
388 | *----------------------------------------------------------------------- | |
389 | */ | |
390 | void | |
391 | Targ_PrintType (type) | |
392 | register int type; | |
393 | { | |
394 | register int tbit; | |
395 | ||
396 | #ifdef __STDC__ | |
397 | #define PRINTBIT(attr) case CONCAT(OP_,attr): printf("." #attr " "); break | |
398 | #define PRINTDBIT(attr) case CONCAT(OP_,attr): if (DEBUG(TARG)) printf("." #attr " "); break | |
399 | #else | |
400 | #define PRINTBIT(attr) case CONCAT(OP_,attr): printf(".attr "); break | |
401 | #define PRINTDBIT(attr) case CONCAT(OP_,attr): if (DEBUG(TARG)) printf(".attr "); break | |
402 | #endif /* __STDC__ */ | |
403 | ||
404 | type &= ~OP_OPMASK; | |
405 | ||
406 | while (type) { | |
407 | tbit = 1 << (ffs(type) - 1); | |
408 | type &= ~tbit; | |
409 | ||
410 | switch(tbit) { | |
ac8c8bba | 411 | PRINTBIT(OPTIONAL); |
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412 | PRINTBIT(USE); |
413 | PRINTBIT(EXEC); | |
414 | PRINTBIT(IGNORE); | |
415 | PRINTBIT(PRECIOUS); | |
416 | PRINTBIT(SILENT); | |
417 | PRINTBIT(MAKE); | |
418 | PRINTBIT(JOIN); | |
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419 | PRINTBIT(INVISIBLE); |
420 | PRINTBIT(NOTMAIN); | |
421 | PRINTDBIT(LIB); | |
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422 | /*XXX: MEMBER is defined, so CONCAT(OP_,MEMBER) gives OP_"%" */ |
423 | case OP_MEMBER: if (DEBUG(TARG)) printf(".MEMBER "); break; | |
424 | PRINTDBIT(ARCHV); | |
425 | } | |
426 | } | |
427 | } | |
428 | ||
429 | /*- | |
430 | *----------------------------------------------------------------------- | |
431 | * TargPrintNode -- | |
432 | * print the contents of a node | |
433 | *----------------------------------------------------------------------- | |
434 | */ | |
435 | static int | |
436 | TargPrintNode (gn, pass) | |
437 | GNode *gn; | |
438 | int pass; | |
439 | { | |
440 | if (!OP_NOP(gn->type)) { | |
441 | printf("#\n"); | |
442 | if (gn == mainTarg) { | |
443 | printf("# *** MAIN TARGET ***\n"); | |
444 | } | |
445 | if (pass == 2) { | |
446 | if (gn->unmade) { | |
447 | printf("# %d unmade children\n", gn->unmade); | |
448 | } else { | |
449 | printf("# No unmade children\n"); | |
450 | } | |
451 | if (! (gn->type & (OP_JOIN|OP_USE|OP_EXEC))) { | |
452 | if (gn->mtime != 0) { | |
453 | printf("# last modified %s: %s\n", | |
454 | Targ_FmtTime(gn->mtime), | |
455 | (gn->made == UNMADE ? "unmade" : | |
456 | (gn->made == MADE ? "made" : | |
457 | (gn->made == UPTODATE ? "up-to-date" : | |
458 | "error when made")))); | |
459 | } else if (gn->made != UNMADE) { | |
460 | printf("# non-existent (maybe): %s\n", | |
461 | (gn->made == MADE ? "made" : | |
462 | (gn->made == UPTODATE ? "up-to-date" : | |
463 | (gn->made == ERROR ? "error when made" : | |
464 | "aborted")))); | |
465 | } else { | |
466 | printf("# unmade\n"); | |
467 | } | |
468 | } | |
469 | if (!Lst_IsEmpty (gn->iParents)) { | |
470 | printf("# implicit parents: "); | |
471 | Lst_ForEach (gn->iParents, TargPrintName, (ClientData)0); | |
472 | putc ('\n', stdout); | |
473 | } | |
474 | } | |
475 | if (!Lst_IsEmpty (gn->parents)) { | |
476 | printf("# parents: "); | |
477 | Lst_ForEach (gn->parents, TargPrintName, (ClientData)0); | |
478 | putc ('\n', stdout); | |
479 | } | |
480 | ||
481 | printf("%-16s", gn->name); | |
482 | switch (gn->type & OP_OPMASK) { | |
483 | case OP_DEPENDS: | |
484 | printf(": "); break; | |
485 | case OP_FORCE: | |
486 | printf("! "); break; | |
487 | case OP_DOUBLEDEP: | |
488 | printf(":: "); break; | |
489 | } | |
490 | Targ_PrintType (gn->type); | |
491 | Lst_ForEach (gn->children, TargPrintName, (ClientData)0); | |
492 | putc ('\n', stdout); | |
493 | Lst_ForEach (gn->commands, Targ_PrintCmd, (ClientData)0); | |
494 | printf("\n\n"); | |
495 | if (gn->type & OP_DOUBLEDEP) { | |
496 | Lst_ForEach (gn->cohorts, TargPrintNode, (ClientData)pass); | |
497 | } | |
498 | } | |
499 | return (0); | |
500 | } | |
182ca07d | 501 | |
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502 | /*- |
503 | *----------------------------------------------------------------------- | |
504 | * TargPrintOnlySrc -- | |
505 | * Print only those targets that are just a source. | |
506 | * | |
507 | * Results: | |
508 | * 0. | |
509 | * | |
510 | * Side Effects: | |
511 | * The name of each file is printed preceeded by #\t | |
512 | * | |
513 | *----------------------------------------------------------------------- | |
514 | */ | |
515 | static int | |
516 | TargPrintOnlySrc(gn) | |
517 | GNode *gn; | |
518 | { | |
519 | if (OP_NOP(gn->type)) { | |
520 | printf("#\t%s [%s]\n", gn->name, | |
521 | gn->path ? gn->path : gn->name); | |
522 | } | |
523 | return (0); | |
524 | } | |
182ca07d | 525 | |
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526 | /*- |
527 | *----------------------------------------------------------------------- | |
528 | * Targ_PrintGraph -- | |
529 | * print the entire graph. heh heh | |
530 | * | |
531 | * Results: | |
532 | * none | |
533 | * | |
534 | * Side Effects: | |
535 | * lots o' output | |
536 | *----------------------------------------------------------------------- | |
537 | */ | |
538 | Targ_PrintGraph (pass) | |
539 | int pass; /* Which pass this is. 1 => no processing | |
540 | * 2 => processing done */ | |
541 | { | |
542 | printf("#*** Input graph:\n"); | |
543 | Lst_ForEach (allTargets, TargPrintNode, (ClientData)pass); | |
544 | printf("\n\n"); | |
545 | printf("#\n# Files that are only sources:\n"); | |
546 | Lst_ForEach (allTargets, TargPrintOnlySrc); | |
547 | printf("#*** Global Variables:\n"); | |
548 | Var_Dump (VAR_GLOBAL); | |
549 | printf("#*** Command-line Variables:\n"); | |
550 | Var_Dump (VAR_CMD); | |
551 | printf("\n"); | |
552 | Dir_PrintDirectories(); | |
553 | printf("\n"); | |
554 | Suff_PrintAll(); | |
555 | } |