2 * Copyright (c) 1988, 1989, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1989 by Berkeley Softworks
7 * This code is derived from software contributed to Berkeley by
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11 * modification, are permitted provided that the following conditions
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20 * This product includes software developed by the University of
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38 * @(#)targ.c 8.2 (Berkeley) 3/19/94
41 #include <sys/cdefs.h>
42 __FBSDID("$FreeBSD$");
45 * Functions for maintaining the Lst allTargets. Target nodes are
46 * kept in two structures: a Lst, maintained by the list library, and a
47 * hash table, maintained by the hash library.
50 * Targ_Init Initialization procedure.
52 * Targ_NewGN Create a new GNode for the passed target (string).
53 * The node is *not* placed in the hash table, though all
54 * its fields are initialized.
56 * Targ_FindNode Find the node for a given target, creating and storing
57 * it if it doesn't exist and the flags are right
60 * Targ_FindList Given a list of names, find nodes for all of them. If a
61 * name doesn't exist and the TARG_NOCREATE flag was given,
62 * an error message is printed. Else, if a name doesn't
63 * exist, its node is created.
65 * Targ_Ignore Return TRUE if errors should be ignored when creating
68 * Targ_Silent Return TRUE if we should be silent when creating the
71 * Targ_Precious Return TRUE if the target is precious and should not
72 * be removed if we are interrupted.
75 * Targ_PrintGraph Print out the entire graphm all variables and statistics
76 * for the directory cache. Should print something for
77 * suffixes, too, but...
93 /* the list of all targets found so far */
94 static Lst allTargets = Lst_Initializer(allTargets);
96 static Hash_Table targets; /* a hash table of same */
98 #define HTSIZE 191 /* initial size of hash table */
102 * Initialize this module
105 * The allTargets list and the targets hash table are initialized
111 Hash_InitTable(&targets, HTSIZE);
116 * Create and initialize a new graph node
119 * An initialized graph node with the name field filled with a copy
123 * The gnode is added to the list of all gnodes.
126 Targ_NewGN(const char *name)
130 gn = emalloc(sizeof(GNode));
131 gn->name = estrdup(name);
133 if (name[0] == '-' && name[1] == 'l') {
141 gn->childMade = FALSE;
143 gn->mtime = gn->cmtime = 0;
144 Lst_Init(&gn->iParents);
145 Lst_Init(&gn->cohorts);
146 Lst_Init(&gn->parents);
147 Lst_Init(&gn->children);
148 Lst_Init(&gn->successors);
149 Lst_Init(&gn->preds);
150 Lst_Init(&gn->context);
151 Lst_Init(&gn->commands);
159 * Find a node in the list using the given name for matching
162 * The node in the list if it was. If it wasn't, return NULL of
163 * flags was TARG_NOCREATE or the newly created and initialized node
164 * if it was TARG_CREATE
167 * Sometimes a node is created and added to the list
170 Targ_FindNode(const char *name, int flags)
172 GNode *gn; /* node in that element */
173 Hash_Entry *he; /* New or used hash entry for node */
174 Boolean isNew; /* Set TRUE if Hash_CreateEntry had to create */
175 /* an entry for the node */
177 if (flags & TARG_CREATE) {
178 he = Hash_CreateEntry(&targets, name, &isNew);
180 gn = Targ_NewGN(name);
181 Hash_SetValue(he, gn);
182 Lst_AtEnd(&allTargets, gn);
185 he = Hash_FindEntry(&targets, name);
191 return (Hash_GetValue(he));
197 * Make a complete list of GNodes from the given list of names
200 * A complete list of graph nodes corresponding to all instances of all
201 * the names in names.
204 * If flags is TARG_CREATE, nodes will be created for all names in
205 * names which do not yet have graph nodes. If flags is TARG_NOCREATE,
206 * an error message will be printed for each name which can't be found.
209 Targ_FindList(Lst *nodes, Lst *names, int flags)
211 LstNode *ln; /* name list element */
212 GNode *gn; /* node in tLn */
215 for (ln = Lst_First(names); ln != NULL; ln = Lst_Succ(ln)) {
216 name = Lst_Datum(ln);
217 gn = Targ_FindNode(name, flags);
220 * Note: Lst_AtEnd must come before the Lst_Concat so
221 * the nodes are added to the list in the order in which
222 * they were encountered in the makefile.
224 Lst_AtEnd(nodes, gn);
225 if (gn->type & OP_DOUBLEDEP) {
226 Lst_Concat(nodes, &gn->cohorts, LST_CONCNEW);
229 } else if (flags == TARG_NOCREATE) {
230 Error("\"%s\" -- target unknown.", name);
237 * Return true if should ignore errors when creating gn
240 * TRUE if should ignore errors
243 Targ_Ignore(GNode *gn)
246 if (ignoreErrors || (gn->type & OP_IGNORE)) {
255 * Return true if be silent when creating gn
258 * TRUE if should be silent
261 Targ_Silent(GNode *gn)
264 if (beSilent || (gn->type & OP_SILENT)) {
273 * See if the given target is precious
276 * TRUE if it is precious. FALSE otherwise
279 Targ_Precious(GNode *gn)
282 if (allPrecious || (gn->type & (OP_PRECIOUS | OP_DOUBLEDEP))) {
289 static GNode *mainTarg; /* the main target, as set by Targ_SetMain */
293 * Set our idea of the main target we'll be creating. Used for
297 * "mainTarg" is set to the main target's node.
300 Targ_SetMain(GNode *gn)
308 * Format a modification time in some reasonable way and return it.
311 * The time reformatted.
314 * The time is placed in a static area, so it is overwritten
318 Targ_FmtTime(time_t modtime)
321 static char buf[128];
323 parts = localtime(&modtime);
325 strftime(buf, sizeof(buf), "%H:%M:%S %b %d, %Y", parts);
326 buf[sizeof(buf) - 1] = '\0';
332 * Print out a type field giving only those attributes the user can
336 Targ_PrintType(int type)
338 static const struct flag2str type2str[] = {
339 { OP_OPTIONAL, ".OPTIONAL" },
341 { OP_EXEC, ".EXEC" },
342 { OP_IGNORE, ".IGNORE" },
343 { OP_PRECIOUS, ".PRECIOUS" },
344 { OP_SILENT, ".SILENT" },
345 { OP_MAKE, ".MAKE" },
346 { OP_JOIN, ".JOIN" },
347 { OP_INVISIBLE, ".INVISIBLE" },
348 { OP_NOTMAIN, ".NOTMAIN" },
349 { OP_PHONY, ".PHONY" },
351 { OP_MEMBER, ".MEMBER" },
352 { OP_ARCHV, ".ARCHV" },
358 type &= ~(OP_ARCHV | OP_LIB | OP_MEMBER);
359 print_flags(stdout, type2str, type, 0);
364 * print the contents of a node
367 TargPrintNode(const GNode *gn, int pass)
371 if (!OP_NOP(gn->type)) {
373 if (gn == mainTarg) {
374 printf("# *** MAIN TARGET ***\n");
378 printf("# %d unmade children\n", gn->unmade);
380 printf("# No unmade children\n");
382 if (!(gn->type & (OP_JOIN | OP_USE | OP_EXEC))) {
383 if (gn->mtime != 0) {
384 printf("# last modified %s: %s\n",
385 Targ_FmtTime(gn->mtime),
386 gn->made == UNMADE ? "unmade" :
387 gn->made == MADE ? "made" :
388 gn->made == UPTODATE ? "up-to-date":
390 } else if (gn->made != UNMADE) {
391 printf("# non-existent (maybe): %s\n",
392 gn->made == MADE ? "made" :
393 gn->made == UPTODATE ? "up-to-date":
394 gn->made == ERROR?"error when made":
397 printf("# unmade\n");
400 if (!Lst_IsEmpty(&gn->iParents)) {
401 printf("# implicit parents: ");
402 LST_FOREACH(tln, &gn->iParents)
403 printf("%s ", ((const GNode *)
404 Lst_Datum(tln))->name);
408 if (!Lst_IsEmpty(&gn->parents)) {
409 printf("# parents: ");
410 LST_FOREACH(tln, &gn->parents)
411 printf("%s ", ((const GNode *)
412 Lst_Datum(tln))->name);
416 printf("%-16s", gn->name);
417 switch (gn->type & OP_OPMASK) {
430 Targ_PrintType(gn->type);
431 LST_FOREACH(tln, &gn->children)
432 printf("%s ", ((const GNode *)Lst_Datum(tln))->name);
434 LST_FOREACH(tln, &gn->commands)
435 printf("\t%s\n", (const char *)Lst_Datum(tln));
437 if (gn->type & OP_DOUBLEDEP) {
438 LST_FOREACH(tln, &gn->cohorts)
439 TargPrintNode((const GNode *)Lst_Datum(tln),
448 * Print the entire graph.
451 Targ_PrintGraph(int pass)
456 printf("#*** Input graph:\n");
457 LST_FOREACH(tln, &allTargets)
458 TargPrintNode((const GNode *)Lst_Datum(tln), pass);
461 printf("#\n# Files that are only sources:\n");
462 LST_FOREACH(tln, &allTargets) {
464 if (OP_NOP(gn->type))
465 printf("#\t%s [%s]\n", gn->name,
466 gn->path ? gn->path : gn->name);
470 Dir_PrintDirectories();