1 /*        $NetBSD: compat.c,v 1.265 2025/05/03 08:18:33 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 #ifdef USE_META
91 # include "meta.h"
92 #endif
93 #include "metachar.h"
94 #include "pathnames.h"
95 
96 /*        "@(#)compat.c       8.2 (Berkeley) 3/19/94"       */
97 MAKE_RCSID("$NetBSD: compat.c,v 1.265 2025/05/03 08:18:33 rillig Exp $");
98 
99 static GNode *curTarg;
100 static pid_t compatChild;
101 static int compatSigno;
102 
103 /*
104  * Delete the file of a failed, interrupted, or otherwise duffed target,
105  * unless inhibited by .PRECIOUS.
106  */
107 static void
CompatDeleteTarget(GNode * gn)108 CompatDeleteTarget(GNode *gn)
109 {
110           if (!GNode_IsPrecious(gn) &&
111               (gn->type & OP_PHONY) == 0) {
112                     const char *file = GNode_VarTarget(gn);
113                     if (!opts.noExecute && unlink_file(file) == 0)
114                               Error("*** %s removed", file);
115           }
116 }
117 
118 /*
119  * Interrupt the creation of the current target and remove it if it ain't
120  * precious. Then exit.
121  *
122  * If .INTERRUPT exists, its commands are run first WITH INTERRUPTS IGNORED.
123  *
124  * XXX: is .PRECIOUS supposed to inhibit .INTERRUPT? I doubt it, but I've
125  * left the logic alone for now. - dholland 20160826
126  */
127 static void
CompatInterrupt(int signo)128 CompatInterrupt(int signo)
129 {
130           if (curTarg != NULL) {
131                     CompatDeleteTarget(curTarg);
132                     if (signo == SIGINT && !GNode_IsPrecious(curTarg)) {
133                               GNode *gn = Targ_FindNode(".INTERRUPT");
134                               if (gn != NULL)
135                                         Compat_Make(gn, gn);
136                     }
137           }
138 
139           if (signo == SIGQUIT)
140                     _exit(signo);
141 
142           /*
143            * If there is a child running, pass the signal on.
144            * We will exist after it has exited.
145            */
146           compatSigno = signo;
147           if (compatChild > 0) {
148                     KILLPG(compatChild, signo);
149           } else {
150                     bmake_signal(signo, SIG_DFL);
151                     kill(myPid, signo);
152           }
153 }
154 
155 static void
DebugFailedTarget(const char * cmd,const GNode * gn)156 DebugFailedTarget(const char *cmd, const GNode *gn)
157 {
158           const char *p = cmd;
159           debug_printf("\n*** Failed target:  %s\n*** Failed command: ",
160               gn->name);
161 
162           /*
163            * Replace runs of whitespace with a single space, to reduce the
164            * amount of whitespace for multi-line command lines.
165            */
166           while (*p != '\0') {
167                     if (ch_isspace(*p)) {
168                               debug_printf(" ");
169                               cpp_skip_whitespace(&p);
170                     } else {
171                               debug_printf("%c", *p);
172                               p++;
173                     }
174           }
175           debug_printf("\n");
176 }
177 
178 static bool
UseShell(const char * cmd MAKE_ATTR_UNUSED)179 UseShell(const char *cmd MAKE_ATTR_UNUSED)
180 {
181 #if !defined(MAKE_NATIVE)
182           /*
183            * In a non-native build, the host environment might be weird enough
184            * that it's necessary to go through a shell to get the correct
185            * behaviour.  Or perhaps the shell has been replaced with something
186            * that does extra logging, and that should not be bypassed.
187            */
188           return true;
189 #else
190           /*
191            * Search for meta characters in the command. If there are no meta
192            * characters, there's no need to execute a shell to execute the
193            * command.
194            *
195            * Additionally variable assignments and empty commands
196            * go to the shell. Therefore treat '=' and ':' like shell
197            * meta characters as documented in make(1).
198            */
199 
200           return needshell(cmd);
201 #endif
202 }
203 
204 static int
Compat_Spawn(const char ** av)205 Compat_Spawn(const char **av)
206 {
207           int pid = FORK_FUNCTION();
208           if (pid < 0)
209                     Fatal("Could not fork");
210 
211           if (pid == 0) {
212 #ifdef USE_META
213                     if (useMeta)
214                               meta_compat_child();
215 #endif
216                     (void)execvp(av[0], (char *const *)UNCONST(av));
217                     execDie("exec", av[0]);
218           }
219           return pid;
220 }
221 
222 /*
223  * Execute the next command for a target. If the command returns an error,
224  * the node's made field is set to ERROR and creation stops.
225  *
226  * Input:
227  *        cmdp                Command to execute
228  *        gn                  Node from which the command came
229  *        ln                  List node that contains the command
230  *
231  * Results:
232  *        true if the command succeeded.
233  */
234 bool
Compat_RunCommand(const char * cmdp,GNode * gn,StringListNode * ln)235 Compat_RunCommand(const char *cmdp, GNode *gn, StringListNode *ln)
236 {
237           char *cmdStart;               /* Start of expanded command */
238           char *volatile bp;
239           bool silent;                  /* Don't print command */
240           bool doIt;                    /* Execute even if -n */
241           volatile bool errCheck;       /* Check errors */
242           int reason;                   /* Reason for child's death */
243           int status;                   /* Description of child's death */
244           pid_t retstat;                /* Result of wait */
245           const char **av;    /* Arguments for the child process */
246           char **volatile mav;          /* Copy of the argument vector for freeing */
247           bool useShell;                /* True if command should be executed using a
248                                          * shell */
249           const char *cmd = cmdp;
250           char cmd_file[MAXPATHLEN];
251           size_t cmd_len;
252           int parseErrorsBefore;
253 
254           silent = (gn->type & OP_SILENT) != OP_NONE;
255           errCheck = !(gn->type & OP_IGNORE);
256           doIt = false;
257 
258           parseErrorsBefore = parseErrors;
259           cmdStart = Var_SubstInTarget(cmd, gn);
260           if (parseErrors != parseErrorsBefore) {
261                     free(cmdStart);
262                     return false;
263           }
264 
265           if (cmdStart[0] == '\0') {
266                     free(cmdStart);
267                     return true;
268           }
269           cmd = cmdStart;
270           LstNode_Set(ln, cmdStart);
271 
272           if (gn->type & OP_SAVE_CMDS) {
273                     GNode *endNode = Targ_GetEndNode();
274                     if (gn != endNode) {
275                               /*
276                                * Append the expanded command, to prevent the
277                                * local variables from being interpreted in the
278                                * scope of the .END node.
279                                *
280                                * A probably unintended side effect of this is that
281                                * the expanded command will be expanded again in the
282                                * .END node.  Therefore, a literal '$' in these
283                                * commands must be written as '$$$$' instead of the
284                                * usual '$$'.
285                                */
286                               Lst_Append(&endNode->commands, cmdStart);
287                               goto register_command;
288                     }
289           }
290           if (strcmp(cmdStart, "...") == 0) {
291                     gn->type |= OP_SAVE_CMDS;
292           register_command:
293                     Parse_RegisterCommand(cmdStart);
294                     return true;
295           }
296 
297           for (;;) {
298                     if (*cmd == '@')
299                               silent = !DEBUG(LOUD);
300                     else if (*cmd == '-')
301                               errCheck = false;
302                     else if (*cmd == '+')
303                               doIt = true;
304                     else if (!ch_isspace(*cmd))
305                               /* Ignore whitespace for compatibility with gnu make */
306                               break;
307                     cmd++;
308           }
309 
310           if (cmd[0] == '\0')
311                     goto register_command;
312 
313           useShell = UseShell(cmd);
314 
315           if (!silent || !GNode_ShouldExecute(gn)) {
316                     printf("%s\n", cmd);
317                     fflush(stdout);
318           }
319 
320           if (!doIt && !GNode_ShouldExecute(gn))
321                     goto register_command;
322 
323           DEBUG1(JOB, "Execute: '%s'\n", cmd);
324 
325           cmd_len = strlen(cmd);
326           if (cmd_len > MAKE_CMDLEN_LIMIT)
327                     useShell = true;
328           else
329                     cmd_file[0] = '\0';
330 
331           if (useShell) {
332                     static const char *shargv[5];
333 
334                     if (Cmd_Argv(cmd, cmd_len, shargv, 5,
335                               cmd_file, sizeof(cmd_file),
336                               errCheck && shellErrFlag != NULL,
337                               DEBUG(SHELL)) < 0)
338                               Fatal("cannot run \"%s\"", cmd);
339                     av = shargv;
340                     bp = NULL;
341                     mav = NULL;
342           } else {
343                     Words words = Str_Words(cmd, false);
344                     mav = words.words;
345                     bp = words.freeIt;
346                     av = (void *)mav;
347           }
348 
349 #ifdef USE_META
350           if (useMeta)
351                     meta_compat_start();
352 #endif
353 
354           Var_ReexportVars(gn);
355 
356           compatChild = Compat_Spawn(av);
357           free(mav);
358           free(bp);
359 
360           /* XXX: Memory management looks suspicious here. */
361           /* XXX: Setting a list item to NULL is unexpected. */
362           LstNode_SetNull(ln);
363 
364 #ifdef USE_META
365           if (useMeta)
366                     meta_compat_parent(compatChild);
367 #endif
368 
369           /* The child is off and running. Now all we can do is wait... */
370           while ((retstat = wait(&reason)) != compatChild) {
371                     if (retstat > 0)
372                               JobReapChild(retstat, reason, false); /* not ours? */
373                     if (retstat == -1 && errno != EINTR)
374                               break;
375           }
376 
377           if (retstat < 0)
378                     Fatal("error in wait: %d: %s", retstat, strerror(errno));
379 
380           if (WIFSTOPPED(reason)) {
381                     status = WSTOPSIG(reason);
382           } else if (WIFEXITED(reason)) {
383                     status = WEXITSTATUS(reason);
384 #if defined(USE_META) && defined(USE_FILEMON_ONCE)
385                     if (useMeta)
386                               meta_cmd_finish(NULL);
387 #endif
388                     if (status != 0) {
389                               if (DEBUG(ERROR))
390                                         DebugFailedTarget(cmd, gn);
391                               printf("*** Error code %d", status);
392                     }
393           } else {
394                     status = WTERMSIG(reason);
395                     printf("*** Signal %d", status);
396           }
397 
398 
399           if (!WIFEXITED(reason) || status != 0) {
400                     if (errCheck) {
401 #ifdef USE_META
402                               if (useMeta)
403                                         meta_job_error(NULL, gn, false, status);
404 #endif
405                               gn->made = ERROR;
406                               if (WIFEXITED(reason))
407                                         gn->exit_status = status;
408                               if (opts.keepgoing) {
409                                         /*
410                                          * Abort the current target,
411                                          * but let others continue.
412                                          */
413                                         printf(" (continuing)\n");
414                               } else {
415                                         printf("\n");
416                               }
417                               if (deleteOnError)
418                                         CompatDeleteTarget(gn);
419                     } else {
420                               /*
421                                * Continue executing commands for this target.
422                                * If we return 0, this will happen...
423                                */
424                               printf(" (ignored)\n");
425                               status = 0;
426                     }
427                     fflush(stdout);
428           }
429 
430           free(cmdStart);
431           if (cmd_file[0] != '\0')
432                     unlink(cmd_file);
433           compatChild = 0;
434           if (compatSigno != 0) {
435                     bmake_signal(compatSigno, SIG_DFL);
436                     kill(myPid, compatSigno);
437           }
438 
439           return status == 0;
440 }
441 
442 static void
RunCommands(GNode * gn)443 RunCommands(GNode *gn)
444 {
445           StringListNode *ln;
446 
447           for (ln = gn->commands.first; ln != NULL; ln = ln->next) {
448                     const char *cmd = ln->datum;
449                     if (!Compat_RunCommand(cmd, gn, ln))
450                               break;
451           }
452 }
453 
454 static void
MakeInRandomOrder(GNode ** gnodes,GNode ** end,GNode * pgn)455 MakeInRandomOrder(GNode **gnodes, GNode **end, GNode *pgn)
456 {
457           GNode **it;
458           size_t r;
459 
460           for (r = (size_t)(end - gnodes); r >= 2; r--) {
461                     /* Biased, but irrelevant in practice. */
462                     size_t i = (size_t)random() % r;
463                     GNode *t = gnodes[r - 1];
464                     gnodes[r - 1] = gnodes[i];
465                     gnodes[i] = t;
466           }
467 
468           for (it = gnodes; it != end; it++)
469                     Compat_Make(*it, pgn);
470 }
471 
472 static void
MakeWaitGroupsInRandomOrder(GNodeList * gnodes,GNode * pgn)473 MakeWaitGroupsInRandomOrder(GNodeList *gnodes, GNode *pgn)
474 {
475           Vector vec;
476           GNodeListNode *ln;
477           GNode **nodes;
478           size_t i, n, start;
479 
480           Vector_Init(&vec, sizeof(GNode *));
481           for (ln = gnodes->first; ln != NULL; ln = ln->next)
482                     *(GNode **)Vector_Push(&vec) = ln->datum;
483           nodes = vec.items;
484           n = vec.len;
485 
486           start = 0;
487           for (i = 0; i < n; i++) {
488                     if (nodes[i]->type & OP_WAIT) {
489                               MakeInRandomOrder(nodes + start, nodes + i, pgn);
490                               Compat_Make(nodes[i], pgn);
491                               start = i + 1;
492                     }
493           }
494           MakeInRandomOrder(nodes + start, nodes + i, pgn);
495 
496           Vector_Done(&vec);
497 }
498 
499 static void
MakeNodes(GNodeList * gnodes,GNode * pgn)500 MakeNodes(GNodeList *gnodes, GNode *pgn)
501 {
502           GNodeListNode *ln;
503 
504           if (Lst_IsEmpty(gnodes))
505                     return;
506           if (opts.randomizeTargets) {
507                     MakeWaitGroupsInRandomOrder(gnodes, pgn);
508                     return;
509           }
510 
511           for (ln = gnodes->first; ln != NULL; ln = ln->next) {
512                     GNode *cgn = ln->datum;
513                     Compat_Make(cgn, pgn);
514           }
515 }
516 
517 static bool
MakeUnmade(GNode * gn,GNode * pgn)518 MakeUnmade(GNode *gn, GNode *pgn)
519 {
520 
521           assert(gn->made == UNMADE);
522 
523           /*
524            * First mark ourselves to be made, then apply whatever transformations
525            * the suffix module thinks are necessary. Once that's done, we can
526            * descend and make all our children. If any of them has an error
527            * but the -k flag was given, our 'make' field will be set to false
528            * again. This is our signal to not attempt to do anything but abort
529            * our parent as well.
530            */
531           gn->flags.remake = true;
532           gn->made = BEINGMADE;
533 
534           if (!(gn->type & OP_MADE))
535                     Suff_FindDeps(gn);
536 
537           MakeNodes(&gn->children, gn);
538 
539           if (!gn->flags.remake) {
540                     gn->made = ABORTED;
541                     pgn->flags.remake = false;
542                     return false;
543           }
544 
545           if (Lst_FindDatum(&gn->implicitParents, pgn) != NULL)
546                     Var_Set(pgn, IMPSRC, GNode_VarTarget(gn));
547 
548           /*
549            * All the children were made ok. Now youngestChild->mtime contains the
550            * modification time of the newest child, we need to find out if we
551            * exist and when we were modified last. The criteria for datedness
552            * are defined by GNode_IsOODate.
553            */
554           DEBUG1(MAKE, "Examining %s...", gn->name);
555           if (!GNode_IsOODate(gn)) {
556                     gn->made = UPTODATE;
557                     DEBUG0(MAKE, "up-to-date.\n");
558                     return false;
559           }
560 
561           /*
562            * If the user is just seeing if something is out-of-date, exit now
563            * to tell him/her "yes".
564            */
565           DEBUG0(MAKE, "out-of-date.\n");
566           if (opts.query && gn != Targ_GetEndNode())
567                     exit(1);
568 
569           /*
570            * We need to be re-made.
571            * Ensure that $? (.OODATE) and $> (.ALLSRC) are both set.
572            */
573           GNode_SetLocalVars(gn);
574 
575           /*
576            * Alter our type to tell if errors should be ignored or things
577            * should not be printed so Compat_RunCommand knows what to do.
578            */
579           if (opts.ignoreErrors)
580                     gn->type |= OP_IGNORE;
581           if (opts.silent)
582                     gn->type |= OP_SILENT;
583 
584           if (Job_CheckCommands(gn, Fatal)) {
585                     if (!opts.touch || (gn->type & OP_MAKE)) {
586                               curTarg = gn;
587 #ifdef USE_META
588                               if (useMeta && GNode_ShouldExecute(gn))
589                                         meta_job_start(NULL, gn);
590 #endif
591                               RunCommands(gn);
592                               curTarg = NULL;
593                     } else {
594                               Job_Touch(gn, (gn->type & OP_SILENT) != OP_NONE);
595                     }
596           } else {
597                     gn->made = ERROR;
598           }
599 #ifdef USE_META
600           if (useMeta && GNode_ShouldExecute(gn)) {
601                     if (meta_job_finish(NULL) != 0)
602                               gn->made = ERROR;
603           }
604 #endif
605 
606           if (gn->made != ERROR) {
607                     /*
608                      * If the node was made successfully, mark it so, update
609                      * its modification time and timestamp all its parents.
610                      * This is to keep its state from affecting that of its parent.
611                      */
612                     gn->made = MADE;
613                     if (Make_Recheck(gn) == 0)
614                               pgn->flags.force = true;
615                     if (!(gn->type & OP_EXEC)) {
616                               pgn->flags.childMade = true;
617                               GNode_UpdateYoungestChild(pgn, gn);
618                     }
619           } else if (opts.keepgoing) {
620                     pgn->flags.remake = false;
621           } else {
622                     PrintOnError(gn, "\nStop.\n");
623                     exit(1);
624           }
625           return true;
626 }
627 
628 static void
MakeOther(GNode * gn,GNode * pgn)629 MakeOther(GNode *gn, GNode *pgn)
630 {
631 
632           if (Lst_FindDatum(&gn->implicitParents, pgn) != NULL) {
633                     const char *target = GNode_VarTarget(gn);
634                     Var_Set(pgn, IMPSRC, target != NULL ? target : "");
635           }
636 
637           switch (gn->made) {
638           case BEINGMADE:
639                     Error("Graph cycles through %s", gn->name);
640                     gn->made = ERROR;
641                     pgn->flags.remake = false;
642                     break;
643           case MADE:
644                     if (!(gn->type & OP_EXEC)) {
645                               pgn->flags.childMade = true;
646                               GNode_UpdateYoungestChild(pgn, gn);
647                     }
648                     break;
649           case UPTODATE:
650                     if (!(gn->type & OP_EXEC))
651                               GNode_UpdateYoungestChild(pgn, gn);
652                     break;
653           default:
654                     break;
655           }
656 }
657 
658 /*
659  * Make a target.
660  *
661  * If an error is detected and not being ignored, the process exits.
662  *
663  * Input:
664  *        gn                  The node to make
665  *        pgn                 Parent to abort if necessary
666  *
667  * Output:
668  *        gn->made
669  *                  UPTODATE  gn was already up-to-date.
670  *                  MADE                gn was recreated successfully.
671  *                  ERROR               An error occurred while gn was being created,
672  *                                      either due to missing commands or in -k mode.
673  *                  ABORTED             gn was not remade because one of its
674  *                                      dependencies could not be made due to errors.
675  */
676 void
Compat_Make(GNode * gn,GNode * pgn)677 Compat_Make(GNode *gn, GNode *pgn)
678 {
679           if (shellName == NULL)        /* we came here from jobs */
680                     Shell_Init();
681 
682           if (gn->made == UNMADE && (gn == pgn || !(pgn->type & OP_MADE))) {
683                     if (!MakeUnmade(gn, pgn))
684                               goto cohorts;
685 
686                     /* XXX: Replace with GNode_IsError(gn) */
687           } else if (gn->made == ERROR) {
688                     /*
689                      * Already had an error when making this.
690                      * Tell the parent to abort.
691                      */
692                     pgn->flags.remake = false;
693           } else {
694                     MakeOther(gn, pgn);
695           }
696 
697 cohorts:
698           MakeNodes(&gn->cohorts, pgn);
699 }
700 
701 static void
MakeBeginNode(void)702 MakeBeginNode(void)
703 {
704           GNode *gn = Targ_FindNode(".BEGIN");
705           if (gn == NULL)
706                     return;
707 
708           Compat_Make(gn, gn);
709           if (GNode_IsError(gn)) {
710                     PrintOnError(gn, "\nStop.\n");
711                     exit(1);
712           }
713 }
714 
715 static void
InitSignals(void)716 InitSignals(void)
717 {
718           if (bmake_signal(SIGINT, SIG_IGN) != SIG_IGN)
719                     bmake_signal(SIGINT, CompatInterrupt);
720           if (bmake_signal(SIGTERM, SIG_IGN) != SIG_IGN)
721                     bmake_signal(SIGTERM, CompatInterrupt);
722           if (bmake_signal(SIGHUP, SIG_IGN) != SIG_IGN)
723                     bmake_signal(SIGHUP, CompatInterrupt);
724           if (bmake_signal(SIGQUIT, SIG_IGN) != SIG_IGN)
725                     bmake_signal(SIGQUIT, CompatInterrupt);
726 }
727 
728 void
Compat_MakeAll(GNodeList * targs)729 Compat_MakeAll(GNodeList *targs)
730 {
731           GNode *errorNode = NULL;
732 
733           if (shellName == NULL)
734                     Shell_Init();
735 
736           InitSignals();
737 
738           /*
739            * Create the .END node now, to keep the (debug) output of the
740            * counter.mk test the same as before 2020-09-23.  This
741            * implementation detail probably doesn't matter though.
742            */
743           (void)Targ_GetEndNode();
744 
745           if (!opts.query)
746                     MakeBeginNode();
747 
748           /*
749            * Expand .USE nodes right now, because they can modify the structure
750            * of the tree.
751            */
752           Make_ExpandUse(targs);
753 
754           while (!Lst_IsEmpty(targs)) {
755                     GNode *gn = Lst_Dequeue(targs);
756                     Compat_Make(gn, gn);
757 
758                     if (gn->made == UPTODATE) {
759                               printf("`%s' is up to date.\n", gn->name);
760                     } else if (gn->made == ABORTED) {
761                               printf("`%s' not remade because of errors.\n",
762                                   gn->name);
763                     }
764                     if (GNode_IsError(gn) && errorNode == NULL)
765                               errorNode = gn;
766           }
767 
768           if (errorNode == NULL) {
769                     GNode *endNode = Targ_GetEndNode();
770                     Compat_Make(endNode, endNode);
771                     if (GNode_IsError(endNode))
772                               errorNode = endNode;
773           }
774 
775           if (errorNode != NULL) {
776                     if (DEBUG(GRAPH2))
777                               Targ_PrintGraph(2);
778                     else if (DEBUG(GRAPH3))
779                               Targ_PrintGraph(3);
780                     PrintOnError(errorNode, "\nStop.\n");
781                     exit(1);
782           }
783 }
784