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e72c71e5 WJ |
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 | * | |
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. All advertising materials mentioning features or use of this software | |
19 | * must display the following acknowledgement: | |
20 | * This product includes software developed by the University of | |
21 | * California, Berkeley and its contributors. | |
22 | * 4. Neither the name of the University nor the names of its contributors | |
23 | * may be used to endorse or promote products derived from this software | |
24 | * without specific prior written permission. | |
25 | * | |
26 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
28 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
29 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
30 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
31 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
32 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
33 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
34 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
35 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
36 | * SUCH DAMAGE. | |
37 | */ | |
38 | ||
39 | #ifndef lint | |
40 | char copyright[] = | |
41 | "@(#) Copyright (c) 1989 The Regents of the University of California.\n\ | |
42 | All rights reserved.\n"; | |
43 | #endif /* not lint */ | |
44 | ||
45 | #ifndef lint | |
46 | static char sccsid[] = "@(#)main.c 5.25 (Berkeley) 4/1/91"; | |
47 | #endif /* not lint */ | |
48 | ||
49 | /*- | |
50 | * main.c -- | |
51 | * The main file for this entire program. Exit routines etc | |
52 | * reside here. | |
53 | * | |
54 | * Utility functions defined in this file: | |
55 | * Main_ParseArgLine Takes a line of arguments, breaks them and | |
56 | * treats them as if they were given when first | |
57 | * invoked. Used by the parse module to implement | |
58 | * the .MFLAGS target. | |
59 | * | |
60 | * Error Print a tagged error message. The global | |
61 | * MAKE variable must have been defined. This | |
62 | * takes a format string and two optional | |
63 | * arguments for it. | |
64 | * | |
65 | * Fatal Print an error message and exit. Also takes | |
66 | * a format string and two arguments. | |
67 | * | |
68 | * Punt Aborts all jobs and exits with a message. Also | |
69 | * takes a format string and two arguments. | |
70 | * | |
71 | * Finish Finish things up by printing the number of | |
72 | * errors which occured, as passed to it, and | |
73 | * exiting. | |
74 | */ | |
75 | ||
76 | #include <sys/param.h> | |
77 | #include <sys/signal.h> | |
78 | #include <sys/stat.h> | |
79 | #include <errno.h> | |
80 | #include <fcntl.h> | |
81 | #include <stdio.h> | |
82 | #include <varargs.h> | |
83 | #include "make.h" | |
84 | #include "pathnames.h" | |
85 | ||
86 | #ifndef DEFMAXLOCAL | |
87 | #define DEFMAXLOCAL DEFMAXJOBS | |
88 | #endif DEFMAXLOCAL | |
89 | ||
90 | #define MAKEFLAGS ".MAKEFLAGS" | |
91 | ||
92 | Lst create; /* Targets to be made */ | |
93 | time_t now; /* Time at start of make */ | |
94 | GNode *DEFAULT; /* .DEFAULT node */ | |
95 | Boolean allPrecious; /* .PRECIOUS given on line by itself */ | |
96 | ||
97 | static Boolean noBuiltins; /* -r flag */ | |
98 | static Lst makefiles; /* ordered list of makefiles to read */ | |
99 | int maxJobs; /* -J argument */ | |
100 | static int maxLocal; /* -L argument */ | |
101 | Boolean debug; /* -d flag */ | |
102 | Boolean noExecute; /* -n flag */ | |
103 | Boolean keepgoing; /* -k flag */ | |
104 | Boolean queryFlag; /* -q flag */ | |
105 | Boolean touchFlag; /* -t flag */ | |
106 | Boolean usePipes; /* !-P flag */ | |
107 | Boolean ignoreErrors; /* -i flag */ | |
108 | Boolean beSilent; /* -s flag */ | |
109 | Boolean oldVars; /* variable substitution style */ | |
110 | Boolean checkEnvFirst; /* -e flag */ | |
111 | static Boolean jobsRunning; /* TRUE if the jobs might be running */ | |
112 | ||
113 | static Boolean ReadMakefile(); | |
114 | ||
115 | static char *curdir; /* if chdir'd for an architecture */ | |
116 | ||
117 | /*- | |
118 | * MainParseArgs -- | |
119 | * Parse a given argument vector. Called from main() and from | |
120 | * Main_ParseArgLine() when the .MAKEFLAGS target is used. | |
121 | * | |
122 | * XXX: Deal with command line overriding .MAKEFLAGS in makefile | |
123 | * | |
124 | * Results: | |
125 | * None | |
126 | * | |
127 | * Side Effects: | |
128 | * Various global and local flags will be set depending on the flags | |
129 | * given | |
130 | */ | |
131 | static void | |
132 | MainParseArgs(argc, argv) | |
133 | int argc; | |
134 | char **argv; | |
135 | { | |
136 | extern int optind; | |
137 | extern char *optarg; | |
138 | register int i; | |
139 | register char *cp; | |
140 | char c; | |
141 | ||
142 | optind = 1; /* since we're called more than once */ | |
143 | rearg: while((c = getopt(argc, argv, "D:I:d:ef:ij:knqrst")) != EOF) { | |
144 | switch(c) { | |
145 | case 'D': | |
146 | Var_Set(optarg, "1", VAR_GLOBAL); | |
147 | Var_Append(MAKEFLAGS, "-D", VAR_GLOBAL); | |
148 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); | |
149 | break; | |
150 | case 'I': | |
151 | Parse_AddIncludeDir(optarg); | |
152 | Var_Append(MAKEFLAGS, "-I", VAR_GLOBAL); | |
153 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); | |
154 | break; | |
155 | #ifdef notdef | |
156 | case 'L': | |
157 | maxLocal = atoi(optarg); | |
158 | Var_Append(MAKEFLAGS, "-L", VAR_GLOBAL); | |
159 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); | |
160 | break; | |
161 | case 'P': | |
162 | usePipes = FALSE; | |
163 | Var_Append(MAKEFLAGS, "-P", VAR_GLOBAL); | |
164 | break; | |
165 | case 'S': | |
166 | keepgoing = FALSE; | |
167 | Var_Append(MAKEFLAGS, "-S", VAR_GLOBAL); | |
168 | break; | |
169 | #endif | |
170 | case 'd': { | |
171 | char *modules = optarg; | |
172 | ||
173 | for (; *modules; ++modules) | |
174 | switch (*modules) { | |
175 | case 'A': | |
176 | debug = ~0; | |
177 | break; | |
178 | case 'a': | |
179 | debug |= DEBUG_ARCH; | |
180 | break; | |
181 | case 'c': | |
182 | debug |= DEBUG_COND; | |
183 | break; | |
184 | case 'd': | |
185 | debug |= DEBUG_DIR; | |
186 | break; | |
187 | case 'g': | |
188 | if (modules[1] == '1') { | |
189 | debug |= DEBUG_GRAPH1; | |
190 | ++modules; | |
191 | } | |
192 | else if (modules[1] == '2') { | |
193 | debug |= DEBUG_GRAPH2; | |
194 | ++modules; | |
195 | } | |
196 | break; | |
197 | case 'j': | |
198 | debug |= DEBUG_JOB; | |
199 | break; | |
200 | case 'm': | |
201 | debug |= DEBUG_MAKE; | |
202 | break; | |
203 | case 's': | |
204 | debug |= DEBUG_SUFF; | |
205 | break; | |
206 | case 't': | |
207 | debug |= DEBUG_TARG; | |
208 | break; | |
209 | case 'v': | |
210 | debug |= DEBUG_VAR; | |
211 | break; | |
212 | default: | |
213 | (void)fprintf(stderr, | |
214 | "make: illegal argument to d option -- %c\n", | |
215 | *modules); | |
216 | usage(); | |
217 | } | |
218 | Var_Append(MAKEFLAGS, "-d", VAR_GLOBAL); | |
219 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); | |
220 | break; | |
221 | } | |
222 | case 'e': | |
223 | checkEnvFirst = TRUE; | |
224 | Var_Append(MAKEFLAGS, "-e", VAR_GLOBAL); | |
225 | break; | |
226 | case 'f': | |
227 | (void)Lst_AtEnd(makefiles, (ClientData)optarg); | |
228 | break; | |
229 | case 'i': | |
230 | ignoreErrors = TRUE; | |
231 | Var_Append(MAKEFLAGS, "-i", VAR_GLOBAL); | |
232 | break; | |
233 | case 'j': | |
234 | maxJobs = atoi(optarg); | |
235 | Var_Append(MAKEFLAGS, "-J", VAR_GLOBAL); | |
236 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); | |
237 | break; | |
238 | case 'k': | |
239 | keepgoing = TRUE; | |
240 | Var_Append(MAKEFLAGS, "-k", VAR_GLOBAL); | |
241 | break; | |
242 | case 'n': | |
243 | noExecute = TRUE; | |
244 | Var_Append(MAKEFLAGS, "-n", VAR_GLOBAL); | |
245 | break; | |
246 | case 'q': | |
247 | queryFlag = TRUE; | |
248 | /* Kind of nonsensical, wot? */ | |
249 | Var_Append(MAKEFLAGS, "-q", VAR_GLOBAL); | |
250 | break; | |
251 | case 'r': | |
252 | noBuiltins = TRUE; | |
253 | Var_Append(MAKEFLAGS, "-r", VAR_GLOBAL); | |
254 | break; | |
255 | case 's': | |
256 | beSilent = TRUE; | |
257 | Var_Append(MAKEFLAGS, "-s", VAR_GLOBAL); | |
258 | break; | |
259 | case 't': | |
260 | touchFlag = TRUE; | |
261 | Var_Append(MAKEFLAGS, "-t", VAR_GLOBAL); | |
262 | break; | |
263 | default: | |
264 | case '?': | |
265 | usage(); | |
266 | } | |
267 | } | |
268 | ||
269 | oldVars = TRUE; | |
270 | ||
271 | /* | |
272 | * See if the rest of the arguments are variable assignments and | |
273 | * perform them if so. Else take them to be targets and stuff them | |
274 | * on the end of the "create" list. | |
275 | */ | |
276 | for (argv += optind, argc -= optind; *argv; ++argv, --argc) | |
277 | if (Parse_IsVar(*argv)) | |
278 | Parse_DoVar(*argv, VAR_CMD); | |
279 | else { | |
280 | if (!**argv) | |
281 | Punt("illegal (null) argument."); | |
282 | if (**argv == '-') { | |
283 | optind = 0; | |
284 | goto rearg; | |
285 | } | |
286 | (void)Lst_AtEnd(create, (ClientData)*argv); | |
287 | } | |
288 | } | |
289 | ||
290 | /*- | |
291 | * Main_ParseArgLine -- | |
292 | * Used by the parse module when a .MFLAGS or .MAKEFLAGS target | |
293 | * is encountered and by main() when reading the .MAKEFLAGS envariable. | |
294 | * Takes a line of arguments and breaks it into its | |
295 | * component words and passes those words and the number of them to the | |
296 | * MainParseArgs function. | |
297 | * The line should have all its leading whitespace removed. | |
298 | * | |
299 | * Results: | |
300 | * None | |
301 | * | |
302 | * Side Effects: | |
303 | * Only those that come from the various arguments. | |
304 | */ | |
305 | void | |
306 | Main_ParseArgLine(line) | |
307 | char *line; /* Line to fracture */ | |
308 | { | |
309 | char **argv; /* Manufactured argument vector */ | |
310 | int argc; /* Number of arguments in argv */ | |
311 | ||
312 | if (line == NULL) | |
313 | return; | |
314 | for (; *line == ' '; ++line); | |
315 | if (!*line) | |
316 | return; | |
317 | ||
318 | argv = brk_string(line, &argc); | |
319 | MainParseArgs(argc, argv); | |
320 | } | |
321 | ||
322 | /*- | |
323 | * main -- | |
324 | * The main function, for obvious reasons. Initializes variables | |
325 | * and a few modules, then parses the arguments give it in the | |
326 | * environment and on the command line. Reads the system makefile | |
327 | * followed by either Makefile, makefile or the file given by the | |
328 | * -f argument. Sets the .MAKEFLAGS PMake variable based on all the | |
329 | * flags it has received by then uses either the Make or the Compat | |
330 | * module to create the initial list of targets. | |
331 | * | |
332 | * Results: | |
333 | * If -q was given, exits -1 if anything was out-of-date. Else it exits | |
334 | * 0. | |
335 | * | |
336 | * Side Effects: | |
337 | * The program exits when done. Targets are created. etc. etc. etc. | |
338 | */ | |
339 | main(argc, argv) | |
340 | int argc; | |
341 | char **argv; | |
342 | { | |
343 | Lst targs; /* target nodes to create -- passed to Make_Init */ | |
344 | Boolean outOfDate; /* FALSE if all targets up to date */ | |
345 | struct stat sb; | |
346 | char *p, *path, *getenv(); | |
347 | ||
348 | /* | |
349 | * if the MAKEOBJDIR (or by default, the _PATH_OBJDIR) directory | |
350 | * exists, change into it and build there. Once things are | |
351 | * initted, have to add the original directory to the search path, | |
352 | * and modify the paths for the Makefiles apropriately. The | |
353 | * current directory is also placed as a variable for make scripts. | |
354 | */ | |
355 | if (!(path = getenv("MAKEOBJDIR"))) | |
356 | path = _PATH_OBJDIR; | |
357 | if (!lstat(path, &sb)) { | |
358 | if (S_ISDIR(sb.st_mode)) | |
359 | curdir = ".."; | |
360 | else { | |
361 | curdir = emalloc((u_int)MAXPATHLEN + 1); | |
362 | if (!getwd(curdir)) { | |
363 | (void)fprintf(stderr, "make: %s.\n", curdir); | |
364 | exit(2); | |
365 | } | |
366 | } | |
367 | if (chdir(path)) { | |
368 | (void)fprintf(stderr, "make: %s: %s.\n", | |
369 | path, strerror(errno)); | |
370 | exit(2); | |
371 | } | |
372 | } | |
373 | ||
374 | create = Lst_Init(FALSE); | |
375 | makefiles = Lst_Init(FALSE); | |
376 | beSilent = FALSE; /* Print commands as executed */ | |
377 | ignoreErrors = FALSE; /* Pay attention to non-zero returns */ | |
378 | noExecute = FALSE; /* Execute all commands */ | |
379 | keepgoing = FALSE; /* Stop on error */ | |
380 | allPrecious = FALSE; /* Remove targets when interrupted */ | |
381 | queryFlag = FALSE; /* This is not just a check-run */ | |
382 | noBuiltins = FALSE; /* Read the built-in rules */ | |
383 | touchFlag = FALSE; /* Actually update targets */ | |
384 | usePipes = TRUE; /* Catch child output in pipes */ | |
385 | debug = 0; /* No debug verbosity, please. */ | |
386 | jobsRunning = FALSE; | |
387 | ||
388 | maxJobs = DEFMAXJOBS; /* Set default max concurrency */ | |
389 | maxLocal = DEFMAXLOCAL; /* Set default local max concurrency */ | |
390 | ||
391 | /* | |
392 | * Initialize the parsing, directory and variable modules to prepare | |
393 | * for the reading of inclusion paths and variable settings on the | |
394 | * command line | |
395 | */ | |
396 | Dir_Init(); /* Initialize directory structures so -I flags | |
397 | * can be processed correctly */ | |
398 | Parse_Init(); /* Need to initialize the paths of #include | |
399 | * directories */ | |
400 | Var_Init(); /* As well as the lists of variables for | |
401 | * parsing arguments */ | |
402 | ||
403 | if (curdir) { | |
404 | Dir_AddDir(dirSearchPath, curdir); | |
405 | Var_Set(".CURDIR", curdir, VAR_GLOBAL); | |
406 | } else | |
407 | Var_Set(".CURDIR", ".", VAR_GLOBAL); | |
408 | ||
409 | /* | |
410 | * Initialize various variables. | |
411 | * MAKE also gets this name, for compatibility | |
412 | * .MAKEFLAGS gets set to the empty string just in case. | |
413 | * MFLAGS also gets initialized empty, for compatibility. | |
414 | */ | |
415 | Var_Set("MAKE", argv[0], VAR_GLOBAL); | |
416 | Var_Set(MAKEFLAGS, "", VAR_GLOBAL); | |
417 | Var_Set("MFLAGS", "", VAR_GLOBAL); | |
418 | Var_Set("MACHINE", MACHINE, VAR_GLOBAL); | |
419 | ||
420 | /* | |
421 | * First snag any flags out of the MAKE environment variable. | |
422 | * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's | |
423 | * in a different format). | |
424 | */ | |
425 | #ifdef POSIX | |
426 | Main_ParseArgLine(getenv("MAKEFLAGS")); | |
427 | #else | |
428 | Main_ParseArgLine(getenv("MAKE")); | |
429 | #endif | |
430 | ||
431 | MainParseArgs(argc, argv); | |
432 | ||
433 | /* | |
434 | * Initialize archive, target and suffix modules in preparation for | |
435 | * parsing the makefile(s) | |
436 | */ | |
437 | Arch_Init(); | |
438 | Targ_Init(); | |
439 | Suff_Init(); | |
440 | ||
441 | DEFAULT = NILGNODE; | |
442 | (void)time(&now); | |
443 | ||
444 | /* | |
445 | * Set up the .TARGETS variable to contain the list of targets to be | |
446 | * created. If none specified, make the variable empty -- the parser | |
447 | * will fill the thing in with the default or .MAIN target. | |
448 | */ | |
449 | if (!Lst_IsEmpty(create)) { | |
450 | LstNode ln; | |
451 | ||
452 | for (ln = Lst_First(create); ln != NILLNODE; | |
453 | ln = Lst_Succ(ln)) { | |
454 | char *name = (char *)Lst_Datum(ln); | |
455 | ||
456 | Var_Append(".TARGETS", name, VAR_GLOBAL); | |
457 | } | |
458 | } else | |
459 | Var_Set(".TARGETS", "", VAR_GLOBAL); | |
460 | ||
461 | /* | |
462 | * Read in the built-in rules first, followed by the specified makefile, | |
463 | * if it was (makefile != (char *) NULL), or the default Makefile and | |
464 | * makefile, in that order, if it wasn't. | |
465 | */ | |
466 | if (!noBuiltins && !ReadMakefile(_PATH_DEFSYSMK)) | |
467 | Fatal("make: no system rules (%s).", _PATH_DEFSYSMK); | |
468 | ||
469 | if (!Lst_IsEmpty(makefiles)) { | |
470 | LstNode ln; | |
471 | ||
472 | ln = Lst_Find(makefiles, (ClientData)NULL, ReadMakefile); | |
473 | if (ln != NILLNODE) | |
474 | Fatal("make: cannot open %s.", (char *)Lst_Datum(ln)); | |
475 | } else if (!ReadMakefile("makefile")) | |
476 | (void)ReadMakefile("Makefile"); | |
477 | ||
478 | (void)ReadMakefile(".depend"); | |
479 | ||
480 | Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL), VAR_GLOBAL); | |
481 | ||
482 | /* Install all the flags into the MAKE envariable. */ | |
483 | if ((p = Var_Value(MAKEFLAGS, VAR_GLOBAL)) && *p) | |
484 | #ifdef POSIX | |
485 | setenv("MAKEFLAGS", p, 1); | |
486 | #else | |
487 | setenv("MAKE", p, 1); | |
488 | #endif | |
489 | ||
490 | /* | |
491 | * For compatibility, look at the directories in the VPATH variable | |
492 | * and add them to the search path, if the variable is defined. The | |
493 | * variable's value is in the same format as the PATH envariable, i.e. | |
494 | * <directory>:<directory>:<directory>... | |
495 | */ | |
496 | if (Var_Exists("VPATH", VAR_CMD)) { | |
497 | char *vpath, *path, *cp, savec; | |
498 | /* | |
499 | * GCC stores string constants in read-only memory, but | |
500 | * Var_Subst will want to write this thing, so store it | |
501 | * in an array | |
502 | */ | |
503 | static char VPATH[] = "${VPATH}"; | |
504 | ||
505 | vpath = Var_Subst(VPATH, VAR_CMD, FALSE); | |
506 | path = vpath; | |
507 | do { | |
508 | /* skip to end of directory */ | |
509 | for (cp = path; *cp != ':' && *cp != '\0'; cp++); | |
510 | /* Save terminator character so know when to stop */ | |
511 | savec = *cp; | |
512 | *cp = '\0'; | |
513 | /* Add directory to search path */ | |
514 | Dir_AddDir(dirSearchPath, path); | |
515 | *cp = savec; | |
516 | path = cp + 1; | |
517 | } while (savec == ':'); | |
518 | (void)free((Address)vpath); | |
519 | } | |
520 | ||
521 | /* | |
522 | * Now that all search paths have been read for suffixes et al, it's | |
523 | * time to add the default search path to their lists... | |
524 | */ | |
525 | Suff_DoPaths(); | |
526 | ||
527 | /* print the initial graph, if the user requested it */ | |
528 | if (DEBUG(GRAPH1)) | |
529 | Targ_PrintGraph(1); | |
530 | ||
531 | /* | |
532 | * Have now read the entire graph and need to make a list of targets | |
533 | * to create. If none was given on the command line, we consult the | |
534 | * parsing module to find the main target(s) to create. | |
535 | */ | |
536 | if (Lst_IsEmpty(create)) | |
537 | targs = Parse_MainName(); | |
538 | else | |
539 | targs = Targ_FindList(create, TARG_CREATE); | |
540 | ||
541 | /* | |
542 | * this was original amMake -- want to allow parallelism, so put this | |
543 | * back in, eventually. | |
544 | */ | |
545 | if (0) { | |
546 | /* | |
547 | * Initialize job module before traversing the graph, now that | |
548 | * any .BEGIN and .END targets have been read. This is done | |
549 | * only if the -q flag wasn't given (to prevent the .BEGIN from | |
550 | * being executed should it exist). | |
551 | */ | |
552 | if (!queryFlag) { | |
553 | if (maxLocal == -1) | |
554 | maxLocal = maxJobs; | |
555 | Job_Init(maxJobs, maxLocal); | |
556 | jobsRunning = TRUE; | |
557 | } | |
558 | ||
559 | /* Traverse the graph, checking on all the targets */ | |
560 | outOfDate = Make_Run(targs); | |
561 | } else | |
562 | /* | |
563 | * Compat_Init will take care of creating all the targets as | |
564 | * well as initializing the module. | |
565 | */ | |
566 | Compat_Run(targs); | |
567 | ||
568 | /* print the graph now it's been processed if the user requested it */ | |
569 | if (DEBUG(GRAPH2)) | |
570 | Targ_PrintGraph(2); | |
571 | ||
572 | if (queryFlag && outOfDate) | |
573 | exit(1); | |
574 | else | |
575 | exit(0); | |
576 | } | |
577 | ||
578 | /*- | |
579 | * ReadMakefile -- | |
580 | * Open and parse the given makefile. | |
581 | * | |
582 | * Results: | |
583 | * TRUE if ok. FALSE if couldn't open file. | |
584 | * | |
585 | * Side Effects: | |
586 | * lots | |
587 | */ | |
588 | static Boolean | |
589 | ReadMakefile(fname) | |
590 | char *fname; /* makefile to read */ | |
591 | { | |
592 | extern Lst parseIncPath, sysIncPath; | |
593 | FILE *stream; | |
594 | char *name, path[MAXPATHLEN + 1]; | |
595 | ||
596 | if (!strcmp(fname, "-")) { | |
597 | Parse_File("(stdin)", stdin); | |
598 | Var_Set("MAKEFILE", "", VAR_GLOBAL); | |
599 | } else { | |
600 | if (stream = fopen(fname, "r")) | |
601 | goto found; | |
602 | /* if we've chdir'd, rebuild the path name */ | |
603 | if (curdir && *fname != '/') { | |
604 | (void)sprintf(path, "%s/%s", curdir, fname); | |
605 | if (stream = fopen(path, "r")) { | |
606 | fname = path; | |
607 | goto found; | |
608 | } | |
609 | } | |
610 | /* look in -I and system include directories. */ | |
611 | name = Dir_FindFile(fname, parseIncPath); | |
612 | if (!name) | |
613 | name = Dir_FindFile(fname, sysIncPath); | |
614 | if (!name || !(stream = fopen(name, "r"))) | |
615 | return(FALSE); | |
616 | fname = name; | |
617 | /* | |
618 | * set the MAKEFILE variable desired by System V fans -- the | |
619 | * placement of the setting here means it gets set to the last | |
620 | * makefile specified, as it is set by SysV make. | |
621 | */ | |
622 | found: Var_Set("MAKEFILE", fname, VAR_GLOBAL); | |
623 | Parse_File(fname, stream); | |
624 | (void)fclose(stream); | |
625 | } | |
626 | return(TRUE); | |
627 | } | |
628 | ||
629 | /*- | |
630 | * Error -- | |
631 | * Print an error message given its format. | |
632 | * | |
633 | * Results: | |
634 | * None. | |
635 | * | |
636 | * Side Effects: | |
637 | * The message is printed. | |
638 | */ | |
639 | /* VARARGS */ | |
640 | void | |
641 | Error(va_alist) | |
642 | va_dcl | |
643 | { | |
644 | va_list ap; | |
645 | char *fmt; | |
646 | ||
647 | va_start(ap); | |
648 | fmt = va_arg(ap, char *); | |
649 | (void)vfprintf(stderr, fmt, ap); | |
650 | va_end(ap); | |
651 | (void)fprintf(stderr, "\n"); | |
652 | (void)fflush(stderr); | |
653 | } | |
654 | ||
655 | /*- | |
656 | * Fatal -- | |
657 | * Produce a Fatal error message. If jobs are running, waits for them | |
658 | * to finish. | |
659 | * | |
660 | * Results: | |
661 | * None | |
662 | * | |
663 | * Side Effects: | |
664 | * The program exits | |
665 | */ | |
666 | /* VARARGS */ | |
667 | void | |
668 | Fatal(va_alist) | |
669 | va_dcl | |
670 | { | |
671 | va_list ap; | |
672 | char *fmt; | |
673 | ||
674 | if (jobsRunning) | |
675 | Job_Wait(); | |
676 | ||
677 | va_start(ap); | |
678 | fmt = va_arg(ap, char *); | |
679 | (void)vfprintf(stderr, fmt, ap); | |
680 | va_end(ap); | |
681 | (void)fprintf(stderr, "\n"); | |
682 | (void)fflush(stderr); | |
683 | ||
684 | if (DEBUG(GRAPH2)) | |
685 | Targ_PrintGraph(2); | |
686 | exit(2); /* Not 1 so -q can distinguish error */ | |
687 | } | |
688 | ||
689 | /* | |
690 | * Punt -- | |
691 | * Major exception once jobs are being created. Kills all jobs, prints | |
692 | * a message and exits. | |
693 | * | |
694 | * Results: | |
695 | * None | |
696 | * | |
697 | * Side Effects: | |
698 | * All children are killed indiscriminately and the program Lib_Exits | |
699 | */ | |
700 | /* VARARGS */ | |
701 | void | |
702 | Punt(va_alist) | |
703 | va_dcl | |
704 | { | |
705 | va_list ap; | |
706 | char *fmt; | |
707 | ||
708 | (void)fprintf(stderr, "make: "); | |
709 | va_start(ap); | |
710 | fmt = va_arg(ap, char *); | |
711 | (void)vfprintf(stderr, fmt, ap); | |
712 | va_end(ap); | |
713 | (void)fprintf(stderr, "\n"); | |
714 | (void)fflush(stderr); | |
715 | ||
716 | DieHorribly(); | |
717 | } | |
718 | ||
719 | /*- | |
720 | * DieHorribly -- | |
721 | * Exit without giving a message. | |
722 | * | |
723 | * Results: | |
724 | * None | |
725 | * | |
726 | * Side Effects: | |
727 | * A big one... | |
728 | */ | |
729 | void | |
730 | DieHorribly() | |
731 | { | |
732 | if (jobsRunning) | |
733 | Job_AbortAll(); | |
734 | if (DEBUG(GRAPH2)) | |
735 | Targ_PrintGraph(2); | |
736 | exit(2); /* Not 1, so -q can distinguish error */ | |
737 | } | |
738 | ||
739 | /* | |
740 | * Finish -- | |
741 | * Called when aborting due to errors in child shell to signal | |
742 | * abnormal exit. | |
743 | * | |
744 | * Results: | |
745 | * None | |
746 | * | |
747 | * Side Effects: | |
748 | * The program exits | |
749 | */ | |
750 | void | |
751 | Finish(errors) | |
752 | int errors; /* number of errors encountered in Make_Make */ | |
753 | { | |
754 | Fatal("%d error%s", errors, errors == 1 ? "" : "s"); | |
755 | } | |
756 | ||
757 | /* | |
758 | * emalloc -- | |
759 | * malloc, but die on error. | |
760 | */ | |
761 | char * | |
762 | emalloc(len) | |
763 | u_int len; | |
764 | { | |
765 | char *p, *malloc(); | |
766 | ||
767 | if (!(p = malloc(len))) | |
768 | enomem(); | |
769 | return(p); | |
770 | } | |
771 | ||
772 | /* | |
773 | * enomem -- | |
774 | * die when out of memory. | |
775 | */ | |
776 | enomem() | |
777 | { | |
778 | (void)fprintf(stderr, "make: %s.\n", strerror(errno)); | |
779 | exit(2); | |
780 | } | |
781 | ||
782 | /* | |
783 | * usage -- | |
784 | * exit with usage message | |
785 | */ | |
786 | usage() | |
787 | { | |
788 | (void)fprintf(stderr, | |
789 | "usage: make [-eiknqrst] [-D variable] [-d flags] [-f makefile ]\n\ | |
790 | [-I directory] [-j max_jobs] [variable=value]\n"); | |
791 | exit(2); | |
792 | } |