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 /* from: static char sccsid[] = "@(#)main.c 5.25 (Berkeley) 4/1/91"; */ 47 static char *rcsid = "$Id: main.c,v 1.18 1995/01/06 19:57:27 christos Exp $"; 48 #endif /* not lint */ 49 50 /*- 51 * main.c -- 52 * The main file for this entire program. Exit routines etc 53 * reside here. 54 * 55 * Utility functions defined in this file: 56 * Main_ParseArgLine Takes a line of arguments, breaks them and 57 * treats them as if they were given when first 58 * invoked. Used by the parse module to implement 59 * the .MFLAGS target. 60 * 61 * Error Print a tagged error message. The global 62 * MAKE variable must have been defined. This 63 * takes a format string and two optional 64 * arguments for it. 65 * 66 * Fatal Print an error message and exit. Also takes 67 * a format string and two arguments. 68 * 69 * Punt Aborts all jobs and exits with a message. Also 70 * takes a format string and two arguments. 71 * 72 * Finish Finish things up by printing the number of 73 * errors which occured, as passed to it, and 74 * exiting. 75 */ 76 77 #include <sys/types.h> 78 #include <sys/time.h> 79 #include <sys/param.h> 80 #include <sys/resource.h> 81 #include <sys/signal.h> 82 #include <sys/stat.h> 83 #include <sys/utsname.h> 84 #include <errno.h> 85 #include <fcntl.h> 86 #include <stdio.h> 87 #if __STDC__ 88 #include <stdarg.h> 89 #else 90 #include <varargs.h> 91 #endif 92 #include "make.h" 93 #include "hash.h" 94 #include "dir.h" 95 #include "job.h" 96 #include "pathnames.h" 97 98 #ifndef DEFMAXLOCAL 99 #define DEFMAXLOCAL DEFMAXJOBS 100 #endif DEFMAXLOCAL 101 102 #define MAKEFLAGS ".MAKEFLAGS" 103 104 Lst create; /* Targets to be made */ 105 time_t now; /* Time at start of make */ 106 GNode *DEFAULT; /* .DEFAULT node */ 107 Boolean allPrecious; /* .PRECIOUS given on line by itself */ 108 109 static Boolean noBuiltins; /* -r flag */ 110 static Lst makefiles; /* ordered list of makefiles to read */ 111 int maxJobs; /* -J argument */ 112 static int maxLocal; /* -L argument */ 113 Boolean compatMake; /* -B argument */ 114 Boolean debug; /* -d flag */ 115 Boolean noExecute; /* -n flag */ 116 Boolean keepgoing; /* -k flag */ 117 Boolean queryFlag; /* -q flag */ 118 Boolean touchFlag; /* -t flag */ 119 Boolean usePipes; /* !-P flag */ 120 Boolean ignoreErrors; /* -i flag */ 121 Boolean beSilent; /* -s flag */ 122 Boolean oldVars; /* variable substitution style */ 123 Boolean checkEnvFirst; /* -e flag */ 124 static Boolean jobsRunning; /* TRUE if the jobs might be running */ 125 126 static Boolean ReadMakefile(); 127 static void usage(); 128 129 static char *curdir; /* startup directory */ 130 static char *objdir; /* where we chdir'ed to */ 131 132 /*- 133 * MainParseArgs -- 134 * Parse a given argument vector. Called from main() and from 135 * Main_ParseArgLine() when the .MAKEFLAGS target is used. 136 * 137 * XXX: Deal with command line overriding .MAKEFLAGS in makefile 138 * 139 * Results: 140 * None 141 * 142 * Side Effects: 143 * Various global and local flags will be set depending on the flags 144 * given 145 */ 146 static void 147 MainParseArgs(argc, argv) 148 int argc; 149 char **argv; 150 { 151 extern int optind; 152 extern char *optarg; 153 int c; 154 155 optind = 1; /* since we're called more than once */ 156 #ifdef notyet 157 # define OPTFLAGS "BD:I:L:PSd:ef:ij:knqrst" 158 #else 159 # define OPTFLAGS "D:I:d:ef:ij:knqrst" 160 #endif 161 rearg: while((c = getopt(argc, argv, OPTFLAGS)) != EOF) { 162 switch(c) { 163 case 'D': 164 Var_Set(optarg, "1", VAR_GLOBAL); 165 Var_Append(MAKEFLAGS, "-D", VAR_GLOBAL); 166 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 167 break; 168 case 'I': 169 Parse_AddIncludeDir(optarg); 170 Var_Append(MAKEFLAGS, "-I", VAR_GLOBAL); 171 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 172 break; 173 #ifdef notyet 174 case 'B': 175 compatMake = TRUE; 176 break; 177 case 'L': 178 maxLocal = atoi(optarg); 179 Var_Append(MAKEFLAGS, "-L", VAR_GLOBAL); 180 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 181 break; 182 case 'P': 183 usePipes = FALSE; 184 Var_Append(MAKEFLAGS, "-P", VAR_GLOBAL); 185 break; 186 case 'S': 187 keepgoing = FALSE; 188 Var_Append(MAKEFLAGS, "-S", VAR_GLOBAL); 189 break; 190 #endif 191 case 'd': { 192 char *modules = optarg; 193 194 for (; *modules; ++modules) 195 switch (*modules) { 196 case 'A': 197 debug = ~0; 198 break; 199 case 'a': 200 debug |= DEBUG_ARCH; 201 break; 202 case 'c': 203 debug |= DEBUG_COND; 204 break; 205 case 'd': 206 debug |= DEBUG_DIR; 207 break; 208 case 'f': 209 debug |= DEBUG_FOR; 210 break; 211 case 'g': 212 if (modules[1] == '1') { 213 debug |= DEBUG_GRAPH1; 214 ++modules; 215 } 216 else if (modules[1] == '2') { 217 debug |= DEBUG_GRAPH2; 218 ++modules; 219 } 220 break; 221 case 'j': 222 debug |= DEBUG_JOB; 223 break; 224 case 'm': 225 debug |= DEBUG_MAKE; 226 break; 227 case 's': 228 debug |= DEBUG_SUFF; 229 break; 230 case 't': 231 debug |= DEBUG_TARG; 232 break; 233 case 'v': 234 debug |= DEBUG_VAR; 235 break; 236 default: 237 (void)fprintf(stderr, 238 "make: illegal argument to d option -- %c\n", 239 *modules); 240 usage(); 241 } 242 Var_Append(MAKEFLAGS, "-d", VAR_GLOBAL); 243 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 244 break; 245 } 246 case 'e': 247 checkEnvFirst = TRUE; 248 Var_Append(MAKEFLAGS, "-e", VAR_GLOBAL); 249 break; 250 case 'f': 251 (void)Lst_AtEnd(makefiles, (ClientData)optarg); 252 break; 253 case 'i': 254 ignoreErrors = TRUE; 255 Var_Append(MAKEFLAGS, "-i", VAR_GLOBAL); 256 break; 257 case 'j': 258 maxJobs = atoi(optarg); 259 Var_Append(MAKEFLAGS, "-j", VAR_GLOBAL); 260 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 261 break; 262 case 'k': 263 keepgoing = TRUE; 264 Var_Append(MAKEFLAGS, "-k", VAR_GLOBAL); 265 break; 266 case 'n': 267 noExecute = TRUE; 268 Var_Append(MAKEFLAGS, "-n", VAR_GLOBAL); 269 break; 270 case 'q': 271 queryFlag = TRUE; 272 /* Kind of nonsensical, wot? */ 273 Var_Append(MAKEFLAGS, "-q", VAR_GLOBAL); 274 break; 275 case 'r': 276 noBuiltins = TRUE; 277 Var_Append(MAKEFLAGS, "-r", VAR_GLOBAL); 278 break; 279 case 's': 280 beSilent = TRUE; 281 Var_Append(MAKEFLAGS, "-s", VAR_GLOBAL); 282 break; 283 case 't': 284 touchFlag = TRUE; 285 Var_Append(MAKEFLAGS, "-t", VAR_GLOBAL); 286 break; 287 default: 288 case '?': 289 usage(); 290 } 291 } 292 293 oldVars = TRUE; 294 295 /* 296 * See if the rest of the arguments are variable assignments and 297 * perform them if so. Else take them to be targets and stuff them 298 * on the end of the "create" list. 299 */ 300 for (argv += optind, argc -= optind; *argv; ++argv, --argc) 301 if (Parse_IsVar(*argv)) 302 Parse_DoVar(*argv, VAR_CMD); 303 else { 304 if (!**argv) 305 Punt("illegal (null) argument."); 306 if (**argv == '-') { 307 if ((*argv)[1]) 308 optind = 0; /* -flag... */ 309 else 310 optind = 1; /* - */ 311 goto rearg; 312 } 313 (void)Lst_AtEnd(create, (ClientData)strdup(*argv)); 314 } 315 } 316 317 /*- 318 * Main_ParseArgLine -- 319 * Used by the parse module when a .MFLAGS or .MAKEFLAGS target 320 * is encountered and by main() when reading the .MAKEFLAGS envariable. 321 * Takes a line of arguments and breaks it into its 322 * component words and passes those words and the number of them to the 323 * MainParseArgs function. 324 * The line should have all its leading whitespace removed. 325 * 326 * Results: 327 * None 328 * 329 * Side Effects: 330 * Only those that come from the various arguments. 331 */ 332 void 333 Main_ParseArgLine(line) 334 char *line; /* Line to fracture */ 335 { 336 char **argv; /* Manufactured argument vector */ 337 int argc; /* Number of arguments in argv */ 338 339 if (line == NULL) 340 return; 341 for (; *line == ' '; ++line) 342 continue; 343 if (!*line) 344 return; 345 346 argv = brk_string(line, &argc, TRUE); 347 MainParseArgs(argc, argv); 348 } 349 350 /*- 351 * main -- 352 * The main function, for obvious reasons. Initializes variables 353 * and a few modules, then parses the arguments give it in the 354 * environment and on the command line. Reads the system makefile 355 * followed by either Makefile, makefile or the file given by the 356 * -f argument. Sets the .MAKEFLAGS PMake variable based on all the 357 * flags it has received by then uses either the Make or the Compat 358 * module to create the initial list of targets. 359 * 360 * Results: 361 * If -q was given, exits -1 if anything was out-of-date. Else it exits 362 * 0. 363 * 364 * Side Effects: 365 * The program exits when done. Targets are created. etc. etc. etc. 366 */ 367 int 368 main(argc, argv) 369 int argc; 370 char **argv; 371 { 372 Lst targs; /* target nodes to create -- passed to Make_Init */ 373 Boolean outOfDate = TRUE; /* FALSE if all targets up to date */ 374 struct stat sb, sa; 375 char *p, *p1, *path, *pwd, *getenv(), *getwd(); 376 char mdpath[MAXPATHLEN + 1]; 377 char obpath[MAXPATHLEN + 1]; 378 char cdpath[MAXPATHLEN + 1]; 379 struct utsname utsname; 380 char *machine = getenv("MACHINE"); 381 382 /* 383 * Find where we are and take care of PWD for the automounter... 384 * All this code is so that we know where we are when we start up 385 * on a different machine with pmake. 386 */ 387 curdir = cdpath; 388 if (getcwd(curdir, MAXPATHLEN) == NULL) { 389 (void)fprintf(stderr, "make: %s.\n", strerror(errno)); 390 exit(2); 391 } 392 393 if (stat(curdir, &sa) == -1) { 394 (void)fprintf(stderr, "make: %s: %s.\n", 395 curdir, strerror(errno)); 396 exit(2); 397 } 398 399 if ((pwd = getenv("PWD")) != NULL) { 400 if (stat(pwd, &sb) == 0 && sa.st_ino == sb.st_ino && 401 sa.st_dev == sb.st_dev) 402 (void) strcpy(curdir, pwd); 403 } 404 405 /* 406 * Get the name of this type of MACHINE from utsname 407 * so we can share an executable for similar machines. 408 * (i.e. m68k: amiga hp300, mac68k, sun3, ...) 409 * 410 * Note that while MACHINE is decided at run-time, 411 * MACHINE_ARCH is always known at compile time. 412 */ 413 if (!machine) { 414 if (uname(&utsname)) { 415 perror("make: uname"); 416 exit(2); 417 } 418 machine = utsname.machine; 419 } 420 421 /* 422 * if the MAKEOBJDIR (or by default, the _PATH_OBJDIR) directory 423 * exists, change into it and build there. Once things are 424 * initted, have to add the original directory to the search path, 425 * and modify the paths for the Makefiles apropriately. The 426 * current directory is also placed as a variable for make scripts. 427 */ 428 if (!(path = getenv("MAKEOBJDIR"))) { 429 path = _PATH_OBJDIR; 430 (void) sprintf(mdpath, "%s.%s", path, machine); 431 } 432 else 433 (void) strncpy(mdpath, path, MAXPATHLEN + 1); 434 435 if (stat(mdpath, &sb) == 0 && S_ISDIR(sb.st_mode)) { 436 437 if (chdir(mdpath)) { 438 (void)fprintf(stderr, "make warning: %s: %s.\n", 439 mdpath, strerror(errno)); 440 objdir = curdir; 441 } 442 else { 443 if (mdpath[0] != '/') { 444 (void) sprintf(obpath, "%s/%s", curdir, mdpath); 445 objdir = obpath; 446 } 447 else 448 objdir = mdpath; 449 } 450 } 451 else { 452 if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) { 453 454 if (chdir(path)) { 455 (void)fprintf(stderr, "make warning: %s: %s.\n", 456 path, strerror(errno)); 457 objdir = curdir; 458 } 459 else { 460 if (path[0] != '/') { 461 (void) sprintf(obpath, "%s/%s", curdir, 462 path); 463 objdir = obpath; 464 } 465 else 466 objdir = obpath; 467 } 468 } 469 else 470 objdir = curdir; 471 } 472 473 setenv("PWD", objdir, 1); 474 475 create = Lst_Init(FALSE); 476 makefiles = Lst_Init(FALSE); 477 beSilent = FALSE; /* Print commands as executed */ 478 ignoreErrors = FALSE; /* Pay attention to non-zero returns */ 479 noExecute = FALSE; /* Execute all commands */ 480 keepgoing = FALSE; /* Stop on error */ 481 allPrecious = FALSE; /* Remove targets when interrupted */ 482 queryFlag = FALSE; /* This is not just a check-run */ 483 noBuiltins = FALSE; /* Read the built-in rules */ 484 touchFlag = FALSE; /* Actually update targets */ 485 usePipes = TRUE; /* Catch child output in pipes */ 486 debug = 0; /* No debug verbosity, please. */ 487 jobsRunning = FALSE; 488 489 maxJobs = DEFMAXJOBS; /* Set default max concurrency */ 490 maxLocal = DEFMAXLOCAL; /* Set default local max concurrency */ 491 #ifdef notyet 492 compatMake = FALSE; /* No compat mode */ 493 #else 494 compatMake = TRUE; /* No compat mode */ 495 #endif 496 497 498 /* 499 * Initialize the parsing, directory and variable modules to prepare 500 * for the reading of inclusion paths and variable settings on the 501 * command line 502 */ 503 Dir_Init(); /* Initialize directory structures so -I flags 504 * can be processed correctly */ 505 Parse_Init(); /* Need to initialize the paths of #include 506 * directories */ 507 Var_Init(); /* As well as the lists of variables for 508 * parsing arguments */ 509 str_init(); 510 if (objdir != curdir) 511 Dir_AddDir(dirSearchPath, curdir); 512 Var_Set(".CURDIR", curdir, VAR_GLOBAL); 513 Var_Set(".OBJDIR", objdir, VAR_GLOBAL); 514 515 /* 516 * Initialize various variables. 517 * MAKE also gets this name, for compatibility 518 * .MAKEFLAGS gets set to the empty string just in case. 519 * MFLAGS also gets initialized empty, for compatibility. 520 */ 521 Var_Set("MAKE", argv[0], VAR_GLOBAL); 522 Var_Set(MAKEFLAGS, "", VAR_GLOBAL); 523 Var_Set("MFLAGS", "", VAR_GLOBAL); 524 Var_Set("MACHINE", machine, VAR_GLOBAL); 525 #ifdef MACHINE_ARCH 526 Var_Set("MACHINE_ARCH", MACHINE_ARCH, VAR_GLOBAL); 527 #endif 528 529 /* 530 * First snag any flags out of the MAKE environment variable. 531 * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's 532 * in a different format). 533 */ 534 #ifdef POSIX 535 Main_ParseArgLine(getenv("MAKEFLAGS")); 536 #else 537 Main_ParseArgLine(getenv("MAKE")); 538 #endif 539 540 MainParseArgs(argc, argv); 541 542 /* 543 * Initialize archive, target and suffix modules in preparation for 544 * parsing the makefile(s) 545 */ 546 Arch_Init(); 547 Targ_Init(); 548 Suff_Init(); 549 550 DEFAULT = NILGNODE; 551 (void)time(&now); 552 553 /* 554 * Set up the .TARGETS variable to contain the list of targets to be 555 * created. If none specified, make the variable empty -- the parser 556 * will fill the thing in with the default or .MAIN target. 557 */ 558 if (!Lst_IsEmpty(create)) { 559 LstNode ln; 560 561 for (ln = Lst_First(create); ln != NILLNODE; 562 ln = Lst_Succ(ln)) { 563 char *name = (char *)Lst_Datum(ln); 564 565 Var_Append(".TARGETS", name, VAR_GLOBAL); 566 } 567 } else 568 Var_Set(".TARGETS", "", VAR_GLOBAL); 569 570 /* 571 * Read in the built-in rules first, followed by the specified makefile, 572 * if it was (makefile != (char *) NULL), or the default Makefile and 573 * makefile, in that order, if it wasn't. 574 */ 575 if (!noBuiltins && !ReadMakefile(_PATH_DEFSYSMK)) 576 Fatal("make: no system rules (%s).", _PATH_DEFSYSMK); 577 578 if (!Lst_IsEmpty(makefiles)) { 579 LstNode ln; 580 581 ln = Lst_Find(makefiles, (ClientData)NULL, ReadMakefile); 582 if (ln != NILLNODE) 583 Fatal("make: cannot open %s.", (char *)Lst_Datum(ln)); 584 } else if (!ReadMakefile("makefile")) 585 (void)ReadMakefile("Makefile"); 586 587 (void)ReadMakefile(".depend"); 588 589 Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL, &p1), VAR_GLOBAL); 590 if (p1) 591 free(p1); 592 593 /* Install all the flags into the MAKE envariable. */ 594 if (((p = Var_Value(MAKEFLAGS, VAR_GLOBAL, &p1)) != NULL) && *p) 595 #ifdef POSIX 596 setenv("MAKEFLAGS", p, 1); 597 #else 598 setenv("MAKE", p, 1); 599 #endif 600 if (p1) 601 free(p1); 602 603 /* 604 * For compatibility, look at the directories in the VPATH variable 605 * and add them to the search path, if the variable is defined. The 606 * variable's value is in the same format as the PATH envariable, i.e. 607 * <directory>:<directory>:<directory>... 608 */ 609 if (Var_Exists("VPATH", VAR_CMD)) { 610 char *vpath, *path, *cp, savec; 611 /* 612 * GCC stores string constants in read-only memory, but 613 * Var_Subst will want to write this thing, so store it 614 * in an array 615 */ 616 static char VPATH[] = "${VPATH}"; 617 618 vpath = Var_Subst(NULL, VPATH, VAR_CMD, FALSE); 619 path = vpath; 620 do { 621 /* skip to end of directory */ 622 for (cp = path; *cp != ':' && *cp != '\0'; cp++) 623 continue; 624 /* Save terminator character so know when to stop */ 625 savec = *cp; 626 *cp = '\0'; 627 /* Add directory to search path */ 628 Dir_AddDir(dirSearchPath, path); 629 *cp = savec; 630 path = cp + 1; 631 } while (savec == ':'); 632 (void)free((Address)vpath); 633 } 634 635 /* 636 * Now that all search paths have been read for suffixes et al, it's 637 * time to add the default search path to their lists... 638 */ 639 Suff_DoPaths(); 640 641 /* print the initial graph, if the user requested it */ 642 if (DEBUG(GRAPH1)) 643 Targ_PrintGraph(1); 644 645 /* 646 * Have now read the entire graph and need to make a list of targets 647 * to create. If none was given on the command line, we consult the 648 * parsing module to find the main target(s) to create. 649 */ 650 if (Lst_IsEmpty(create)) 651 targs = Parse_MainName(); 652 else 653 targs = Targ_FindList(create, TARG_CREATE); 654 655 /* 656 * this was original amMake -- want to allow parallelism, so put this 657 * back in, eventually. 658 */ 659 if (!compatMake) { 660 /* 661 * Initialize job module before traversing the graph, now that 662 * any .BEGIN and .END targets have been read. This is done 663 * only if the -q flag wasn't given (to prevent the .BEGIN from 664 * being executed should it exist). 665 */ 666 if (!queryFlag) { 667 if (maxLocal == -1) 668 maxLocal = maxJobs; 669 Job_Init(maxJobs, maxLocal); 670 jobsRunning = TRUE; 671 } 672 673 /* Traverse the graph, checking on all the targets */ 674 outOfDate = Make_Run(targs); 675 } else 676 /* 677 * Compat_Init will take care of creating all the targets as 678 * well as initializing the module. 679 */ 680 Compat_Run(targs); 681 682 Lst_Destroy(targs, NOFREE); 683 Lst_Destroy(makefiles, NOFREE); 684 Lst_Destroy(create, (void (*) __P((ClientData))) free); 685 686 /* print the graph now it's been processed if the user requested it */ 687 if (DEBUG(GRAPH2)) 688 Targ_PrintGraph(2); 689 690 Suff_End(); 691 Targ_End(); 692 Arch_End(); 693 str_end(); 694 Var_End(); 695 Parse_End(); 696 Dir_End(); 697 698 if (queryFlag && outOfDate) 699 return(1); 700 else 701 return(0); 702 } 703 704 /*- 705 * ReadMakefile -- 706 * Open and parse the given makefile. 707 * 708 * Results: 709 * TRUE if ok. FALSE if couldn't open file. 710 * 711 * Side Effects: 712 * lots 713 */ 714 static Boolean 715 ReadMakefile(fname) 716 char *fname; /* makefile to read */ 717 { 718 extern Lst parseIncPath, sysIncPath; 719 FILE *stream; 720 char *name, path[MAXPATHLEN + 1]; 721 722 if (!strcmp(fname, "-")) { 723 Parse_File("(stdin)", stdin); 724 Var_Set("MAKEFILE", "", VAR_GLOBAL); 725 } else { 726 if ((stream = fopen(fname, "r")) != NULL) 727 goto found; 728 /* if we've chdir'd, rebuild the path name */ 729 if (curdir != objdir && *fname != '/') { 730 (void)sprintf(path, "%s/%s", curdir, fname); 731 if ((stream = fopen(path, "r")) != NULL) { 732 fname = path; 733 goto found; 734 } 735 } 736 /* look in -I and system include directories. */ 737 name = Dir_FindFile(fname, parseIncPath); 738 if (!name) 739 name = Dir_FindFile(fname, sysIncPath); 740 if (!name || !(stream = fopen(name, "r"))) 741 return(FALSE); 742 fname = name; 743 /* 744 * set the MAKEFILE variable desired by System V fans -- the 745 * placement of the setting here means it gets set to the last 746 * makefile specified, as it is set by SysV make. 747 */ 748 found: Var_Set("MAKEFILE", fname, VAR_GLOBAL); 749 Parse_File(fname, stream); 750 (void)fclose(stream); 751 } 752 return(TRUE); 753 } 754 755 /*- 756 * Error -- 757 * Print an error message given its format. 758 * 759 * Results: 760 * None. 761 * 762 * Side Effects: 763 * The message is printed. 764 */ 765 /* VARARGS */ 766 void 767 #if __STDC__ 768 Error(char *fmt, ...) 769 #else 770 Error(va_alist) 771 va_dcl 772 #endif 773 { 774 va_list ap; 775 #if __STDC__ 776 va_start(ap, fmt); 777 #else 778 char *fmt; 779 780 va_start(ap); 781 fmt = va_arg(ap, char *); 782 #endif 783 (void)vfprintf(stderr, fmt, ap); 784 va_end(ap); 785 (void)fprintf(stderr, "\n"); 786 (void)fflush(stderr); 787 } 788 789 /*- 790 * Fatal -- 791 * Produce a Fatal error message. If jobs are running, waits for them 792 * to finish. 793 * 794 * Results: 795 * None 796 * 797 * Side Effects: 798 * The program exits 799 */ 800 /* VARARGS */ 801 void 802 #if __STDC__ 803 Fatal(char *fmt, ...) 804 #else 805 Fatal(va_alist) 806 va_dcl 807 #endif 808 { 809 va_list ap; 810 #if __STDC__ 811 va_start(ap, fmt); 812 #else 813 char *fmt; 814 815 va_start(ap); 816 fmt = va_arg(ap, char *); 817 #endif 818 if (jobsRunning) 819 Job_Wait(); 820 821 (void)vfprintf(stderr, fmt, ap); 822 va_end(ap); 823 (void)fprintf(stderr, "\n"); 824 (void)fflush(stderr); 825 826 if (DEBUG(GRAPH2)) 827 Targ_PrintGraph(2); 828 exit(2); /* Not 1 so -q can distinguish error */ 829 } 830 831 /* 832 * Punt -- 833 * Major exception once jobs are being created. Kills all jobs, prints 834 * a message and exits. 835 * 836 * Results: 837 * None 838 * 839 * Side Effects: 840 * All children are killed indiscriminately and the program Lib_Exits 841 */ 842 /* VARARGS */ 843 void 844 #if __STDC__ 845 Punt(char *fmt, ...) 846 #else 847 Punt(va_alist) 848 va_dcl 849 #endif 850 { 851 va_list ap; 852 #if __STDC__ 853 va_start(ap, fmt); 854 #else 855 char *fmt; 856 857 va_start(ap); 858 fmt = va_arg(ap, char *); 859 #endif 860 861 (void)fprintf(stderr, "make: "); 862 (void)vfprintf(stderr, fmt, ap); 863 va_end(ap); 864 (void)fprintf(stderr, "\n"); 865 (void)fflush(stderr); 866 867 DieHorribly(); 868 } 869 870 /*- 871 * DieHorribly -- 872 * Exit without giving a message. 873 * 874 * Results: 875 * None 876 * 877 * Side Effects: 878 * A big one... 879 */ 880 void 881 DieHorribly() 882 { 883 if (jobsRunning) 884 Job_AbortAll(); 885 if (DEBUG(GRAPH2)) 886 Targ_PrintGraph(2); 887 exit(2); /* Not 1, so -q can distinguish error */ 888 } 889 890 /* 891 * Finish -- 892 * Called when aborting due to errors in child shell to signal 893 * abnormal exit. 894 * 895 * Results: 896 * None 897 * 898 * Side Effects: 899 * The program exits 900 */ 901 void 902 Finish(errors) 903 int errors; /* number of errors encountered in Make_Make */ 904 { 905 Fatal("%d error%s", errors, errors == 1 ? "" : "s"); 906 } 907 908 /* 909 * emalloc -- 910 * malloc, but die on error. 911 */ 912 char * 913 emalloc(len) 914 size_t len; 915 { 916 char *p; 917 918 if ((p = (char *) malloc(len)) == NULL) 919 enomem(); 920 return(p); 921 } 922 923 /* 924 * enomem -- 925 * die when out of memory. 926 */ 927 void 928 enomem() 929 { 930 (void)fprintf(stderr, "make: %s.\n", strerror(errno)); 931 exit(2); 932 } 933 934 /* 935 * usage -- 936 * exit with usage message 937 */ 938 static void 939 usage() 940 { 941 (void)fprintf(stderr, 942 "usage: make [-eiknqrst] [-D variable] [-d flags] [-f makefile ]\n\ 943 [-I directory] [-j max_jobs] [variable=value]\n"); 944 exit(2); 945 } 946 947 948 int 949 PrintAddr(a, b) 950 ClientData a; 951 ClientData b; 952 { 953 printf("%lx ", (unsigned long) a); 954 return b ? 0 : 0; 955 } 956