compat.c revision 1.257 1 /* $NetBSD: compat.c,v 1.257 2024/05/25 21:07:48 rillig Exp $ */
2
3 /*
4 * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Adam de Boor.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35 /*
36 * Copyright (c) 1988, 1989 by Adam de Boor
37 * Copyright (c) 1989 by Berkeley Softworks
38 * All rights reserved.
39 *
40 * This code is derived from software contributed to Berkeley by
41 * Adam de Boor.
42 *
43 * Redistribution and use in source and binary forms, with or without
44 * modification, are permitted provided that the following conditions
45 * are met:
46 * 1. Redistributions of source code must retain the above copyright
47 * notice, this list of conditions and the following disclaimer.
48 * 2. Redistributions in binary form must reproduce the above copyright
49 * notice, this list of conditions and the following disclaimer in the
50 * documentation and/or other materials provided with the distribution.
51 * 3. All advertising materials mentioning features or use of this software
52 * must display the following acknowledgement:
53 * This product includes software developed by the University of
54 * California, Berkeley and its contributors.
55 * 4. Neither the name of the University nor the names of its contributors
56 * may be used to endorse or promote products derived from this software
57 * without specific prior written permission.
58 *
59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
69 * SUCH DAMAGE.
70 */
71
72 /*
73 * This file implements the full-compatibility mode of make, which makes the
74 * targets without parallelism and without a custom shell.
75 *
76 * Interface:
77 * Compat_MakeAll Initialize this module and make the given targets.
78 */
79
80 #include <sys/types.h>
81 #include <sys/stat.h>
82 #include <sys/wait.h>
83
84 #include <errno.h>
85 #include <signal.h>
86
87 #include "make.h"
88 #include "dir.h"
89 #include "job.h"
90 #include "metachar.h"
91 #include "pathnames.h"
92
93 /* "@(#)compat.c 8.2 (Berkeley) 3/19/94" */
94 MAKE_RCSID("$NetBSD: compat.c,v 1.257 2024/05/25 21:07:48 rillig Exp $");
95
96 static GNode *curTarg = NULL;
97 static pid_t compatChild;
98 static int compatSigno;
99
100 /*
101 * Delete the file of a failed, interrupted, or otherwise duffed target,
102 * unless inhibited by .PRECIOUS.
103 */
104 static void
105 CompatDeleteTarget(GNode *gn)
106 {
107 if (gn != NULL && !GNode_IsPrecious(gn) &&
108 (gn->type & OP_PHONY) == 0) {
109 const char *file = GNode_VarTarget(gn);
110 if (!opts.noExecute && unlink_file(file) == 0)
111 Error("*** %s removed", file);
112 }
113 }
114
115 /*
116 * Interrupt the creation of the current target and remove it if it ain't
117 * precious. Then exit.
118 *
119 * If .INTERRUPT exists, its commands are run first WITH INTERRUPTS IGNORED.
120 *
121 * XXX: is .PRECIOUS supposed to inhibit .INTERRUPT? I doubt it, but I've
122 * left the logic alone for now. - dholland 20160826
123 */
124 static void
125 CompatInterrupt(int signo)
126 {
127 CompatDeleteTarget(curTarg);
128
129 if (curTarg != NULL && !GNode_IsPrecious(curTarg)) {
130 /* Run .INTERRUPT only if hit with interrupt signal. */
131 if (signo == SIGINT) {
132 GNode *gn = Targ_FindNode(".INTERRUPT");
133 if (gn != NULL)
134 Compat_Make(gn, gn);
135 }
136 }
137
138 if (signo == SIGQUIT)
139 _exit(signo);
140
141 /*
142 * If there is a child running, pass the signal on.
143 * We will exist after it has exited.
144 */
145 compatSigno = signo;
146 if (compatChild > 0) {
147 KILLPG(compatChild, signo);
148 } else {
149 bmake_signal(signo, SIG_DFL);
150 kill(myPid, signo);
151 }
152 }
153
154 static void
155 DebugFailedTarget(const char *cmd, const GNode *gn)
156 {
157 const char *p = cmd;
158 debug_printf("\n*** Failed target: %s\n*** Failed command: ",
159 gn->name);
160
161 /*
162 * Replace runs of whitespace with a single space, to reduce the
163 * amount of whitespace for multi-line command lines.
164 */
165 while (*p != '\0') {
166 if (ch_isspace(*p)) {
167 debug_printf(" ");
168 cpp_skip_whitespace(&p);
169 } else {
170 debug_printf("%c", *p);
171 p++;
172 }
173 }
174 debug_printf("\n");
175 }
176
177 static bool
178 UseShell(const char *cmd MAKE_ATTR_UNUSED)
179 {
180 #if !defined(MAKE_NATIVE)
181 /*
182 * In a non-native build, the host environment might be weird enough
183 * that it's necessary to go through a shell to get the correct
184 * behaviour. Or perhaps the shell has been replaced with something
185 * that does extra logging, and that should not be bypassed.
186 */
187 return true;
188 #else
189 /*
190 * Search for meta characters in the command. If there are no meta
191 * characters, there's no need to execute a shell to execute the
192 * command.
193 *
194 * Additionally variable assignments and empty commands
195 * go to the shell. Therefore treat '=' and ':' like shell
196 * meta characters as documented in make(1).
197 */
198
199 return needshell(cmd);
200 #endif
201 }
202
203 static int
204 Compat_Spawn(const char **av)
205 {
206 int pid = vfork();
207 if (pid < 0)
208 Fatal("Could not fork");
209
210 if (pid == 0) {
211 #ifdef USE_META
212 if (useMeta)
213 meta_compat_child();
214 #endif
215 (void)execvp(av[0], (char *const *)UNCONST(av));
216 execDie("exec", av[0]);
217 }
218 return pid;
219 }
220
221 /*
222 * Execute the next command for a target. If the command returns an error,
223 * the node's made field is set to ERROR and creation stops.
224 *
225 * Input:
226 * cmdp Command to execute
227 * gn Node from which the command came
228 * ln List node that contains the command
229 *
230 * Results:
231 * true if the command succeeded.
232 */
233 bool
234 Compat_RunCommand(const char *cmdp, GNode *gn, StringListNode *ln)
235 {
236 char *cmdStart; /* Start of expanded command */
237 char *volatile bp;
238 bool silent; /* Don't print command */
239 bool doIt; /* Execute even if -n */
240 volatile bool errCheck; /* Check errors */
241 int reason; /* Reason for child's death */
242 int status; /* Description of child's death */
243 pid_t retstat; /* Result of wait */
244 const char **av; /* Arguments for the child process */
245 char **volatile mav; /* Copy of the argument vector for freeing */
246 bool useShell; /* True if command should be executed using a
247 * shell */
248 const char *cmd = cmdp;
249
250 silent = (gn->type & OP_SILENT) != OP_NONE;
251 errCheck = !(gn->type & OP_IGNORE);
252 doIt = false;
253
254 EvalStack_Push(gn->name, NULL, NULL);
255 cmdStart = Var_Subst(cmd, gn, VARE_WANTRES);
256 EvalStack_Pop();
257 /* TODO: handle errors */
258
259 if (cmdStart[0] == '\0') {
260 free(cmdStart);
261 return true;
262 }
263 cmd = cmdStart;
264 LstNode_Set(ln, cmdStart);
265
266 if (gn->type & OP_SAVE_CMDS) {
267 GNode *endNode = Targ_GetEndNode();
268 if (gn != endNode) {
269 /*
270 * Append the expanded command, to prevent the
271 * local variables from being interpreted in the
272 * scope of the .END node.
273 *
274 * A probably unintended side effect of this is that
275 * the expanded command will be expanded again in the
276 * .END node. Therefore, a literal '$' in these
277 * commands must be written as '$$$$' instead of the
278 * usual '$$'.
279 */
280 Lst_Append(&endNode->commands, cmdStart);
281 goto register_command;
282 }
283 }
284 if (strcmp(cmdStart, "...") == 0) {
285 gn->type |= OP_SAVE_CMDS;
286 register_command:
287 Parse_RegisterCommand(cmdStart);
288 return true;
289 }
290
291 for (;;) {
292 if (*cmd == '@')
293 silent = !DEBUG(LOUD);
294 else if (*cmd == '-')
295 errCheck = false;
296 else if (*cmd == '+')
297 doIt = true;
298 else if (!ch_isspace(*cmd))
299 /* Ignore whitespace for compatibility with gnu make */
300 break;
301 cmd++;
302 }
303
304 while (ch_isspace(*cmd))
305 cmd++;
306 if (cmd[0] == '\0')
307 goto register_command;
308
309 useShell = UseShell(cmd);
310
311 if (!silent || !GNode_ShouldExecute(gn)) {
312 printf("%s\n", cmd);
313 fflush(stdout);
314 }
315
316 if (!doIt && !GNode_ShouldExecute(gn))
317 goto register_command;
318
319 DEBUG1(JOB, "Execute: '%s'\n", cmd);
320
321 if (useShell && shellPath == NULL)
322 Shell_Init(); /* we need shellPath */
323
324 if (useShell) {
325 static const char *shargv[5];
326
327 /* The following work for any of the builtin shell specs. */
328 int shargc = 0;
329 shargv[shargc++] = shellPath;
330 if (errCheck && shellErrFlag != NULL)
331 shargv[shargc++] = shellErrFlag;
332 shargv[shargc++] = DEBUG(SHELL) ? "-xc" : "-c";
333 shargv[shargc++] = cmd;
334 shargv[shargc] = NULL;
335 av = shargv;
336 bp = NULL;
337 mav = NULL;
338 } else {
339 Words words = Str_Words(cmd, false);
340 mav = words.words;
341 bp = words.freeIt;
342 av = (void *)mav;
343 }
344
345 #ifdef USE_META
346 if (useMeta)
347 meta_compat_start();
348 #endif
349
350 Var_ReexportVars(gn);
351
352 compatChild = Compat_Spawn(av);
353 free(mav);
354 free(bp);
355
356 /* XXX: Memory management looks suspicious here. */
357 /* XXX: Setting a list item to NULL is unexpected. */
358 LstNode_SetNull(ln);
359
360 #ifdef USE_META
361 if (useMeta)
362 meta_compat_parent(compatChild);
363 #endif
364
365 /* The child is off and running. Now all we can do is wait... */
366 while ((retstat = wait(&reason)) != compatChild) {
367 if (retstat > 0)
368 JobReapChild(retstat, reason, false); /* not ours? */
369 if (retstat == -1 && errno != EINTR)
370 break;
371 }
372
373 if (retstat < 0)
374 Fatal("error in wait: %d: %s", retstat, strerror(errno));
375
376 if (WIFSTOPPED(reason)) {
377 status = WSTOPSIG(reason);
378 } else if (WIFEXITED(reason)) {
379 status = WEXITSTATUS(reason);
380 #if defined(USE_META) && defined(USE_FILEMON_ONCE)
381 if (useMeta)
382 meta_cmd_finish(NULL);
383 #endif
384 if (status != 0) {
385 if (DEBUG(ERROR))
386 DebugFailedTarget(cmd, gn);
387 printf("*** Error code %d", status);
388 }
389 } else {
390 status = WTERMSIG(reason);
391 printf("*** Signal %d", status);
392 }
393
394
395 if (!WIFEXITED(reason) || status != 0) {
396 if (errCheck) {
397 #ifdef USE_META
398 if (useMeta)
399 meta_job_error(NULL, gn, false, status);
400 #endif
401 gn->made = ERROR;
402 if (WIFEXITED(reason))
403 gn->exit_status = status;
404 if (opts.keepgoing) {
405 /*
406 * Abort the current target,
407 * but let others continue.
408 */
409 printf(" (continuing)\n");
410 } else {
411 printf("\n");
412 }
413 if (deleteOnError)
414 CompatDeleteTarget(gn);
415 } else {
416 /*
417 * Continue executing commands for this target.
418 * If we return 0, this will happen...
419 */
420 printf(" (ignored)\n");
421 status = 0;
422 }
423 fflush(stdout);
424 }
425
426 free(cmdStart);
427 compatChild = 0;
428 if (compatSigno != 0) {
429 bmake_signal(compatSigno, SIG_DFL);
430 kill(myPid, compatSigno);
431 }
432
433 return status == 0;
434 }
435
436 static void
437 RunCommands(GNode *gn)
438 {
439 StringListNode *ln;
440
441 for (ln = gn->commands.first; ln != NULL; ln = ln->next) {
442 const char *cmd = ln->datum;
443 if (!Compat_RunCommand(cmd, gn, ln))
444 break;
445 }
446 }
447
448 static void
449 MakeInRandomOrder(GNode **gnodes, GNode **end, GNode *pgn)
450 {
451 GNode **it;
452 size_t r;
453
454 for (r = (size_t)(end - gnodes); r >= 2; r--) {
455 /* Biased, but irrelevant in practice. */
456 size_t i = (size_t)random() % r;
457 GNode *t = gnodes[r - 1];
458 gnodes[r - 1] = gnodes[i];
459 gnodes[i] = t;
460 }
461
462 for (it = gnodes; it != end; it++)
463 Compat_Make(*it, pgn);
464 }
465
466 static void
467 MakeWaitGroupsInRandomOrder(GNodeList *gnodes, GNode *pgn)
468 {
469 Vector vec;
470 GNodeListNode *ln;
471 GNode **nodes;
472 size_t i, n, start;
473
474 Vector_Init(&vec, sizeof(GNode *));
475 for (ln = gnodes->first; ln != NULL; ln = ln->next)
476 *(GNode **)Vector_Push(&vec) = ln->datum;
477 nodes = vec.items;
478 n = vec.len;
479
480 start = 0;
481 for (i = 0; i < n; i++) {
482 if (nodes[i]->type & OP_WAIT) {
483 MakeInRandomOrder(nodes + start, nodes + i, pgn);
484 Compat_Make(nodes[i], pgn);
485 start = i + 1;
486 }
487 }
488 MakeInRandomOrder(nodes + start, nodes + i, pgn);
489
490 Vector_Done(&vec);
491 }
492
493 static void
494 MakeNodes(GNodeList *gnodes, GNode *pgn)
495 {
496 GNodeListNode *ln;
497
498 if (Lst_IsEmpty(gnodes))
499 return;
500 if (opts.randomizeTargets) {
501 MakeWaitGroupsInRandomOrder(gnodes, pgn);
502 return;
503 }
504
505 for (ln = gnodes->first; ln != NULL; ln = ln->next) {
506 GNode *cgn = ln->datum;
507 Compat_Make(cgn, pgn);
508 }
509 }
510
511 static bool
512 MakeUnmade(GNode *gn, GNode *pgn)
513 {
514
515 assert(gn->made == UNMADE);
516
517 /*
518 * First mark ourselves to be made, then apply whatever transformations
519 * the suffix module thinks are necessary. Once that's done, we can
520 * descend and make all our children. If any of them has an error
521 * but the -k flag was given, our 'make' field will be set to false
522 * again. This is our signal to not attempt to do anything but abort
523 * our parent as well.
524 */
525 gn->flags.remake = true;
526 gn->made = BEINGMADE;
527
528 if (!(gn->type & OP_MADE))
529 Suff_FindDeps(gn);
530
531 MakeNodes(&gn->children, gn);
532
533 if (!gn->flags.remake) {
534 gn->made = ABORTED;
535 pgn->flags.remake = false;
536 return false;
537 }
538
539 if (Lst_FindDatum(&gn->implicitParents, pgn) != NULL)
540 Var_Set(pgn, IMPSRC, GNode_VarTarget(gn));
541
542 /*
543 * All the children were made ok. Now youngestChild->mtime contains the
544 * modification time of the newest child, we need to find out if we
545 * exist and when we were modified last. The criteria for datedness
546 * are defined by GNode_IsOODate.
547 */
548 DEBUG1(MAKE, "Examining %s...", gn->name);
549 if (!GNode_IsOODate(gn)) {
550 gn->made = UPTODATE;
551 DEBUG0(MAKE, "up-to-date.\n");
552 return false;
553 }
554
555 /*
556 * If the user is just seeing if something is out-of-date, exit now
557 * to tell him/her "yes".
558 */
559 DEBUG0(MAKE, "out-of-date.\n");
560 if (opts.query && gn != Targ_GetEndNode())
561 exit(1);
562
563 /*
564 * We need to be re-made.
565 * Ensure that $? (.OODATE) and $> (.ALLSRC) are both set.
566 */
567 GNode_SetLocalVars(gn);
568
569 /*
570 * Alter our type to tell if errors should be ignored or things
571 * should not be printed so Compat_RunCommand knows what to do.
572 */
573 if (opts.ignoreErrors)
574 gn->type |= OP_IGNORE;
575 if (opts.silent)
576 gn->type |= OP_SILENT;
577
578 if (Job_CheckCommands(gn, Fatal)) {
579 if (!opts.touch || (gn->type & OP_MAKE)) {
580 curTarg = gn;
581 #ifdef USE_META
582 if (useMeta && GNode_ShouldExecute(gn))
583 meta_job_start(NULL, gn);
584 #endif
585 RunCommands(gn);
586 curTarg = NULL;
587 } else {
588 Job_Touch(gn, (gn->type & OP_SILENT) != OP_NONE);
589 }
590 } else {
591 gn->made = ERROR;
592 }
593 #ifdef USE_META
594 if (useMeta && GNode_ShouldExecute(gn)) {
595 if (meta_job_finish(NULL) != 0)
596 gn->made = ERROR;
597 }
598 #endif
599
600 if (gn->made != ERROR) {
601 /*
602 * If the node was made successfully, mark it so, update
603 * its modification time and timestamp all its parents.
604 * This is to keep its state from affecting that of its parent.
605 */
606 gn->made = MADE;
607 if (Make_Recheck(gn) == 0)
608 pgn->flags.force = true;
609 if (!(gn->type & OP_EXEC)) {
610 pgn->flags.childMade = true;
611 GNode_UpdateYoungestChild(pgn, gn);
612 }
613 } else if (opts.keepgoing) {
614 pgn->flags.remake = false;
615 } else {
616 PrintOnError(gn, "\nStop.\n");
617 exit(1);
618 }
619 return true;
620 }
621
622 static void
623 MakeOther(GNode *gn, GNode *pgn)
624 {
625
626 if (Lst_FindDatum(&gn->implicitParents, pgn) != NULL) {
627 const char *target = GNode_VarTarget(gn);
628 Var_Set(pgn, IMPSRC, target != NULL ? target : "");
629 }
630
631 switch (gn->made) {
632 case BEINGMADE:
633 Error("Graph cycles through %s", gn->name);
634 gn->made = ERROR;
635 pgn->flags.remake = false;
636 break;
637 case MADE:
638 if (!(gn->type & OP_EXEC)) {
639 pgn->flags.childMade = true;
640 GNode_UpdateYoungestChild(pgn, gn);
641 }
642 break;
643 case UPTODATE:
644 if (!(gn->type & OP_EXEC))
645 GNode_UpdateYoungestChild(pgn, gn);
646 break;
647 default:
648 break;
649 }
650 }
651
652 /*
653 * Make a target.
654 *
655 * If an error is detected and not being ignored, the process exits.
656 *
657 * Input:
658 * gn The node to make
659 * pgn Parent to abort if necessary
660 *
661 * Output:
662 * gn->made
663 * UPTODATE gn was already up-to-date.
664 * MADE gn was recreated successfully.
665 * ERROR An error occurred while gn was being created,
666 * either due to missing commands or in -k mode.
667 * ABORTED gn was not remade because one of its
668 * dependencies could not be made due to errors.
669 */
670 void
671 Compat_Make(GNode *gn, GNode *pgn)
672 {
673 if (shellName == NULL) /* we came here from jobs */
674 Shell_Init();
675
676 if (gn->made == UNMADE && (gn == pgn || !(pgn->type & OP_MADE))) {
677 if (!MakeUnmade(gn, pgn))
678 goto cohorts;
679
680 /* XXX: Replace with GNode_IsError(gn) */
681 } else if (gn->made == ERROR) {
682 /*
683 * Already had an error when making this.
684 * Tell the parent to abort.
685 */
686 pgn->flags.remake = false;
687 } else {
688 MakeOther(gn, pgn);
689 }
690
691 cohorts:
692 MakeNodes(&gn->cohorts, pgn);
693 }
694
695 static void
696 MakeBeginNode(void)
697 {
698 GNode *gn = Targ_FindNode(".BEGIN");
699 if (gn == NULL)
700 return;
701
702 Compat_Make(gn, gn);
703 if (GNode_IsError(gn)) {
704 PrintOnError(gn, "\nStop.\n");
705 exit(1);
706 }
707 }
708
709 static void
710 InitSignals(void)
711 {
712 if (bmake_signal(SIGINT, SIG_IGN) != SIG_IGN)
713 bmake_signal(SIGINT, CompatInterrupt);
714 if (bmake_signal(SIGTERM, SIG_IGN) != SIG_IGN)
715 bmake_signal(SIGTERM, CompatInterrupt);
716 if (bmake_signal(SIGHUP, SIG_IGN) != SIG_IGN)
717 bmake_signal(SIGHUP, CompatInterrupt);
718 if (bmake_signal(SIGQUIT, SIG_IGN) != SIG_IGN)
719 bmake_signal(SIGQUIT, CompatInterrupt);
720 }
721
722 void
723 Compat_MakeAll(GNodeList *targs)
724 {
725 GNode *errorNode = NULL;
726
727 if (shellName == NULL)
728 Shell_Init();
729
730 InitSignals();
731
732 /*
733 * Create the .END node now, to keep the (debug) output of the
734 * counter.mk test the same as before 2020-09-23. This
735 * implementation detail probably doesn't matter though.
736 */
737 (void)Targ_GetEndNode();
738
739 if (!opts.query)
740 MakeBeginNode();
741
742 /*
743 * Expand .USE nodes right now, because they can modify the structure
744 * of the tree.
745 */
746 Make_ExpandUse(targs);
747
748 while (!Lst_IsEmpty(targs)) {
749 GNode *gn = Lst_Dequeue(targs);
750 Compat_Make(gn, gn);
751
752 if (gn->made == UPTODATE) {
753 printf("`%s' is up to date.\n", gn->name);
754 } else if (gn->made == ABORTED) {
755 printf("`%s' not remade because of errors.\n",
756 gn->name);
757 }
758 if (GNode_IsError(gn) && errorNode == NULL)
759 errorNode = gn;
760 }
761
762 if (errorNode == NULL) {
763 GNode *endNode = Targ_GetEndNode();
764 Compat_Make(endNode, endNode);
765 if (GNode_IsError(endNode))
766 errorNode = endNode;
767 }
768
769 if (errorNode != NULL) {
770 if (DEBUG(GRAPH2))
771 Targ_PrintGraph(2);
772 else if (DEBUG(GRAPH3))
773 Targ_PrintGraph(3);
774 PrintOnError(errorNode, "\nStop.\n");
775 exit(1);
776 }
777 }
778