main.c revision 1.3
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 * PATCHES MAGIC LEVEL PATCH THAT GOT US HERE 39 * -------------------- ----- ---------------------- 40 * CURRENT PATCH LEVEL: 1 00015 41 * -------------------- ----- ---------------------- 42 * 43 * 17 Mar 92 John Woods Fix "make - make" bug 44 */ 45 46 #ifndef lint 47 char copyright[] = 48 "@(#) Copyright (c) 1989 The Regents of the University of California.\n\ 49 All rights reserved.\n"; 50 #endif /* not lint */ 51 52 #ifndef lint 53 static char sccsid[] = "@(#)main.c 5.25 (Berkeley) 4/1/91"; 54 #endif /* not lint */ 55 56 /*- 57 * main.c -- 58 * The main file for this entire program. Exit routines etc 59 * reside here. 60 * 61 * Utility functions defined in this file: 62 * Main_ParseArgLine Takes a line of arguments, breaks them and 63 * treats them as if they were given when first 64 * invoked. Used by the parse module to implement 65 * the .MFLAGS target. 66 * 67 * Error Print a tagged error message. The global 68 * MAKE variable must have been defined. This 69 * takes a format string and two optional 70 * arguments for it. 71 * 72 * Fatal Print an error message and exit. Also takes 73 * a format string and two arguments. 74 * 75 * Punt Aborts all jobs and exits with a message. Also 76 * takes a format string and two arguments. 77 * 78 * Finish Finish things up by printing the number of 79 * errors which occured, as passed to it, and 80 * exiting. 81 */ 82 83 #include <sys/param.h> 84 #include <sys/signal.h> 85 #include <sys/stat.h> 86 #include <errno.h> 87 #include <fcntl.h> 88 #include <stdio.h> 89 #include <varargs.h> 90 #include "make.h" 91 #include "pathnames.h" 92 93 #ifndef DEFMAXLOCAL 94 #define DEFMAXLOCAL DEFMAXJOBS 95 #endif DEFMAXLOCAL 96 97 #define MAKEFLAGS ".MAKEFLAGS" 98 99 Lst create; /* Targets to be made */ 100 time_t now; /* Time at start of make */ 101 GNode *DEFAULT; /* .DEFAULT node */ 102 Boolean allPrecious; /* .PRECIOUS given on line by itself */ 103 104 static Boolean noBuiltins; /* -r flag */ 105 static Lst makefiles; /* ordered list of makefiles to read */ 106 int maxJobs; /* -J argument */ 107 static int maxLocal; /* -L argument */ 108 Boolean debug; /* -d flag */ 109 Boolean noExecute; /* -n flag */ 110 Boolean keepgoing; /* -k flag */ 111 Boolean queryFlag; /* -q flag */ 112 Boolean touchFlag; /* -t flag */ 113 Boolean usePipes; /* !-P flag */ 114 Boolean ignoreErrors; /* -i flag */ 115 Boolean beSilent; /* -s flag */ 116 Boolean oldVars; /* variable substitution style */ 117 Boolean checkEnvFirst; /* -e flag */ 118 static Boolean jobsRunning; /* TRUE if the jobs might be running */ 119 120 static Boolean ReadMakefile(); 121 122 static char *curdir; /* if chdir'd for an architecture */ 123 124 /*- 125 * MainParseArgs -- 126 * Parse a given argument vector. Called from main() and from 127 * Main_ParseArgLine() when the .MAKEFLAGS target is used. 128 * 129 * XXX: Deal with command line overriding .MAKEFLAGS in makefile 130 * 131 * Results: 132 * None 133 * 134 * Side Effects: 135 * Various global and local flags will be set depending on the flags 136 * given 137 */ 138 static void 139 MainParseArgs(argc, argv) 140 int argc; 141 char **argv; 142 { 143 extern int optind; 144 extern char *optarg; 145 register int i; 146 register char *cp; 147 char c; 148 149 optind = 1; /* since we're called more than once */ 150 rearg: while((c = getopt(argc, argv, "D:I:d:ef:ij:knqrst")) != EOF) { 151 switch(c) { 152 case 'D': 153 Var_Set(optarg, "1", VAR_GLOBAL); 154 Var_Append(MAKEFLAGS, "-D", VAR_GLOBAL); 155 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 156 break; 157 case 'I': 158 Parse_AddIncludeDir(optarg); 159 Var_Append(MAKEFLAGS, "-I", VAR_GLOBAL); 160 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 161 break; 162 #ifdef notdef 163 case 'L': 164 maxLocal = atoi(optarg); 165 Var_Append(MAKEFLAGS, "-L", VAR_GLOBAL); 166 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 167 break; 168 case 'P': 169 usePipes = FALSE; 170 Var_Append(MAKEFLAGS, "-P", VAR_GLOBAL); 171 break; 172 case 'S': 173 keepgoing = FALSE; 174 Var_Append(MAKEFLAGS, "-S", VAR_GLOBAL); 175 break; 176 #endif 177 case 'd': { 178 char *modules = optarg; 179 180 for (; *modules; ++modules) 181 switch (*modules) { 182 case 'A': 183 debug = ~0; 184 break; 185 case 'a': 186 debug |= DEBUG_ARCH; 187 break; 188 case 'c': 189 debug |= DEBUG_COND; 190 break; 191 case 'd': 192 debug |= DEBUG_DIR; 193 break; 194 case 'g': 195 if (modules[1] == '1') { 196 debug |= DEBUG_GRAPH1; 197 ++modules; 198 } 199 else if (modules[1] == '2') { 200 debug |= DEBUG_GRAPH2; 201 ++modules; 202 } 203 break; 204 case 'j': 205 debug |= DEBUG_JOB; 206 break; 207 case 'm': 208 debug |= DEBUG_MAKE; 209 break; 210 case 's': 211 debug |= DEBUG_SUFF; 212 break; 213 case 't': 214 debug |= DEBUG_TARG; 215 break; 216 case 'v': 217 debug |= DEBUG_VAR; 218 break; 219 default: 220 (void)fprintf(stderr, 221 "make: illegal argument to d option -- %c\n", 222 *modules); 223 usage(); 224 } 225 Var_Append(MAKEFLAGS, "-d", VAR_GLOBAL); 226 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 227 break; 228 } 229 case 'e': 230 checkEnvFirst = TRUE; 231 Var_Append(MAKEFLAGS, "-e", VAR_GLOBAL); 232 break; 233 case 'f': 234 (void)Lst_AtEnd(makefiles, (ClientData)optarg); 235 break; 236 case 'i': 237 ignoreErrors = TRUE; 238 Var_Append(MAKEFLAGS, "-i", VAR_GLOBAL); 239 break; 240 case 'j': 241 maxJobs = atoi(optarg); 242 Var_Append(MAKEFLAGS, "-J", VAR_GLOBAL); 243 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 244 break; 245 case 'k': 246 keepgoing = TRUE; 247 Var_Append(MAKEFLAGS, "-k", VAR_GLOBAL); 248 break; 249 case 'n': 250 noExecute = TRUE; 251 Var_Append(MAKEFLAGS, "-n", VAR_GLOBAL); 252 break; 253 case 'q': 254 queryFlag = TRUE; 255 /* Kind of nonsensical, wot? */ 256 Var_Append(MAKEFLAGS, "-q", VAR_GLOBAL); 257 break; 258 case 'r': 259 noBuiltins = TRUE; 260 Var_Append(MAKEFLAGS, "-r", VAR_GLOBAL); 261 break; 262 case 's': 263 beSilent = TRUE; 264 Var_Append(MAKEFLAGS, "-s", VAR_GLOBAL); 265 break; 266 case 't': 267 touchFlag = TRUE; 268 Var_Append(MAKEFLAGS, "-t", VAR_GLOBAL); 269 break; 270 default: 271 case '?': 272 usage(); 273 } 274 } 275 276 oldVars = TRUE; 277 278 /* 279 * See if the rest of the arguments are variable assignments and 280 * perform them if so. Else take them to be targets and stuff them 281 * on the end of the "create" list. 282 */ 283 for (argv += optind, argc -= optind; *argv; ++argv, --argc) 284 if (Parse_IsVar(*argv)) 285 Parse_DoVar(*argv, VAR_CMD); 286 else { 287 if (!**argv) 288 Punt("illegal (null) argument."); 289 if (**argv == '-') { 290 /* 17 Mar 92*/ if ((*argv)[1]) 291 /* 17 Mar 92*/ optind = 0; /* -flag... */ 292 /* 17 Mar 92*/ else 293 /* 17 Mar 92*/ optind = 1; /* - */ 294 goto rearg; 295 } 296 (void)Lst_AtEnd(create, (ClientData)*argv); 297 } 298 } 299 300 /*- 301 * Main_ParseArgLine -- 302 * Used by the parse module when a .MFLAGS or .MAKEFLAGS target 303 * is encountered and by main() when reading the .MAKEFLAGS envariable. 304 * Takes a line of arguments and breaks it into its 305 * component words and passes those words and the number of them to the 306 * MainParseArgs function. 307 * The line should have all its leading whitespace removed. 308 * 309 * Results: 310 * None 311 * 312 * Side Effects: 313 * Only those that come from the various arguments. 314 */ 315 void 316 Main_ParseArgLine(line) 317 char *line; /* Line to fracture */ 318 { 319 char **argv; /* Manufactured argument vector */ 320 int argc; /* Number of arguments in argv */ 321 322 if (line == NULL) 323 return; 324 for (; *line == ' '; ++line); 325 if (!*line) 326 return; 327 328 argv = brk_string(line, &argc); 329 MainParseArgs(argc, argv); 330 } 331 332 /*- 333 * main -- 334 * The main function, for obvious reasons. Initializes variables 335 * and a few modules, then parses the arguments give it in the 336 * environment and on the command line. Reads the system makefile 337 * followed by either Makefile, makefile or the file given by the 338 * -f argument. Sets the .MAKEFLAGS PMake variable based on all the 339 * flags it has received by then uses either the Make or the Compat 340 * module to create the initial list of targets. 341 * 342 * Results: 343 * If -q was given, exits -1 if anything was out-of-date. Else it exits 344 * 0. 345 * 346 * Side Effects: 347 * The program exits when done. Targets are created. etc. etc. etc. 348 */ 349 main(argc, argv) 350 int argc; 351 char **argv; 352 { 353 Lst targs; /* target nodes to create -- passed to Make_Init */ 354 Boolean outOfDate; /* FALSE if all targets up to date */ 355 struct stat sb; 356 char *p, *path, *getenv(); 357 358 /* 359 * if the MAKEOBJDIR (or by default, the _PATH_OBJDIR) directory 360 * exists, change into it and build there. Once things are 361 * initted, have to add the original directory to the search path, 362 * and modify the paths for the Makefiles apropriately. The 363 * current directory is also placed as a variable for make scripts. 364 */ 365 if (!(path = getenv("MAKEOBJDIR"))) 366 path = _PATH_OBJDIR; 367 if (!lstat(path, &sb)) { 368 curdir = emalloc((u_int)MAXPATHLEN + 1); 369 if (!getwd(curdir)) { 370 (void)fprintf(stderr, "make: %s.\n", curdir); 371 exit(2); 372 } 373 if (chdir(path)) { 374 (void)fprintf(stderr, "make: %s: %s.\n", 375 path, strerror(errno)); 376 exit(2); 377 } 378 } 379 380 create = Lst_Init(FALSE); 381 makefiles = Lst_Init(FALSE); 382 beSilent = FALSE; /* Print commands as executed */ 383 ignoreErrors = FALSE; /* Pay attention to non-zero returns */ 384 noExecute = FALSE; /* Execute all commands */ 385 keepgoing = FALSE; /* Stop on error */ 386 allPrecious = FALSE; /* Remove targets when interrupted */ 387 queryFlag = FALSE; /* This is not just a check-run */ 388 noBuiltins = FALSE; /* Read the built-in rules */ 389 touchFlag = FALSE; /* Actually update targets */ 390 usePipes = TRUE; /* Catch child output in pipes */ 391 debug = 0; /* No debug verbosity, please. */ 392 jobsRunning = FALSE; 393 394 maxJobs = DEFMAXJOBS; /* Set default max concurrency */ 395 maxLocal = DEFMAXLOCAL; /* Set default local max concurrency */ 396 397 /* 398 * Initialize the parsing, directory and variable modules to prepare 399 * for the reading of inclusion paths and variable settings on the 400 * command line 401 */ 402 Dir_Init(); /* Initialize directory structures so -I flags 403 * can be processed correctly */ 404 Parse_Init(); /* Need to initialize the paths of #include 405 * directories */ 406 Var_Init(); /* As well as the lists of variables for 407 * parsing arguments */ 408 409 if (curdir) { 410 Dir_AddDir(dirSearchPath, curdir); 411 Var_Set(".CURDIR", curdir, VAR_GLOBAL); 412 } else 413 Var_Set(".CURDIR", ".", VAR_GLOBAL); 414 415 /* 416 * Initialize various variables. 417 * MAKE also gets this name, for compatibility 418 * .MAKEFLAGS gets set to the empty string just in case. 419 * MFLAGS also gets initialized empty, for compatibility. 420 */ 421 Var_Set("MAKE", argv[0], VAR_GLOBAL); 422 Var_Set(MAKEFLAGS, "", VAR_GLOBAL); 423 Var_Set("MFLAGS", "", VAR_GLOBAL); 424 Var_Set("MACHINE", MACHINE, VAR_GLOBAL); 425 426 /* 427 * First snag any flags out of the MAKE environment variable. 428 * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's 429 * in a different format). 430 */ 431 #ifdef POSIX 432 Main_ParseArgLine(getenv("MAKEFLAGS")); 433 #else 434 Main_ParseArgLine(getenv("MAKE")); 435 #endif 436 437 MainParseArgs(argc, argv); 438 439 /* 440 * Initialize archive, target and suffix modules in preparation for 441 * parsing the makefile(s) 442 */ 443 Arch_Init(); 444 Targ_Init(); 445 Suff_Init(); 446 447 DEFAULT = NILGNODE; 448 (void)time(&now); 449 450 /* 451 * Set up the .TARGETS variable to contain the list of targets to be 452 * created. If none specified, make the variable empty -- the parser 453 * will fill the thing in with the default or .MAIN target. 454 */ 455 if (!Lst_IsEmpty(create)) { 456 LstNode ln; 457 458 for (ln = Lst_First(create); ln != NILLNODE; 459 ln = Lst_Succ(ln)) { 460 char *name = (char *)Lst_Datum(ln); 461 462 Var_Append(".TARGETS", name, VAR_GLOBAL); 463 } 464 } else 465 Var_Set(".TARGETS", "", VAR_GLOBAL); 466 467 /* 468 * Read in the built-in rules first, followed by the specified makefile, 469 * if it was (makefile != (char *) NULL), or the default Makefile and 470 * makefile, in that order, if it wasn't. 471 */ 472 if (!noBuiltins && !ReadMakefile(_PATH_DEFSYSMK)) 473 Fatal("make: no system rules (%s).", _PATH_DEFSYSMK); 474 475 if (!Lst_IsEmpty(makefiles)) { 476 LstNode ln; 477 478 ln = Lst_Find(makefiles, (ClientData)NULL, ReadMakefile); 479 if (ln != NILLNODE) 480 Fatal("make: cannot open %s.", (char *)Lst_Datum(ln)); 481 } else if (!ReadMakefile("makefile")) 482 (void)ReadMakefile("Makefile"); 483 484 (void)ReadMakefile(".depend"); 485 486 Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL), VAR_GLOBAL); 487 488 /* Install all the flags into the MAKE envariable. */ 489 if ((p = Var_Value(MAKEFLAGS, VAR_GLOBAL)) && *p) 490 #ifdef POSIX 491 setenv("MAKEFLAGS", p, 1); 492 #else 493 setenv("MAKE", p, 1); 494 #endif 495 496 /* 497 * For compatibility, look at the directories in the VPATH variable 498 * and add them to the search path, if the variable is defined. The 499 * variable's value is in the same format as the PATH envariable, i.e. 500 * <directory>:<directory>:<directory>... 501 */ 502 if (Var_Exists("VPATH", VAR_CMD)) { 503 char *vpath, *path, *cp, savec; 504 /* 505 * GCC stores string constants in read-only memory, but 506 * Var_Subst will want to write this thing, so store it 507 * in an array 508 */ 509 static char VPATH[] = "${VPATH}"; 510 511 vpath = Var_Subst(VPATH, VAR_CMD, FALSE); 512 path = vpath; 513 do { 514 /* skip to end of directory */ 515 for (cp = path; *cp != ':' && *cp != '\0'; cp++); 516 /* Save terminator character so know when to stop */ 517 savec = *cp; 518 *cp = '\0'; 519 /* Add directory to search path */ 520 Dir_AddDir(dirSearchPath, path); 521 *cp = savec; 522 path = cp + 1; 523 } while (savec == ':'); 524 (void)free((Address)vpath); 525 } 526 527 /* 528 * Now that all search paths have been read for suffixes et al, it's 529 * time to add the default search path to their lists... 530 */ 531 Suff_DoPaths(); 532 533 /* print the initial graph, if the user requested it */ 534 if (DEBUG(GRAPH1)) 535 Targ_PrintGraph(1); 536 537 /* 538 * Have now read the entire graph and need to make a list of targets 539 * to create. If none was given on the command line, we consult the 540 * parsing module to find the main target(s) to create. 541 */ 542 if (Lst_IsEmpty(create)) 543 targs = Parse_MainName(); 544 else 545 targs = Targ_FindList(create, TARG_CREATE); 546 547 /* 548 * this was original amMake -- want to allow parallelism, so put this 549 * back in, eventually. 550 */ 551 if (0) { 552 /* 553 * Initialize job module before traversing the graph, now that 554 * any .BEGIN and .END targets have been read. This is done 555 * only if the -q flag wasn't given (to prevent the .BEGIN from 556 * being executed should it exist). 557 */ 558 if (!queryFlag) { 559 if (maxLocal == -1) 560 maxLocal = maxJobs; 561 Job_Init(maxJobs, maxLocal); 562 jobsRunning = TRUE; 563 } 564 565 /* Traverse the graph, checking on all the targets */ 566 outOfDate = Make_Run(targs); 567 } else 568 /* 569 * Compat_Init will take care of creating all the targets as 570 * well as initializing the module. 571 */ 572 Compat_Run(targs); 573 574 /* print the graph now it's been processed if the user requested it */ 575 if (DEBUG(GRAPH2)) 576 Targ_PrintGraph(2); 577 578 if (queryFlag && outOfDate) 579 exit(1); 580 else 581 exit(0); 582 } 583 584 /*- 585 * ReadMakefile -- 586 * Open and parse the given makefile. 587 * 588 * Results: 589 * TRUE if ok. FALSE if couldn't open file. 590 * 591 * Side Effects: 592 * lots 593 */ 594 static Boolean 595 ReadMakefile(fname) 596 char *fname; /* makefile to read */ 597 { 598 extern Lst parseIncPath, sysIncPath; 599 FILE *stream; 600 char *name, path[MAXPATHLEN + 1]; 601 602 if (!strcmp(fname, "-")) { 603 Parse_File("(stdin)", stdin); 604 Var_Set("MAKEFILE", "", VAR_GLOBAL); 605 } else { 606 if (stream = fopen(fname, "r")) 607 goto found; 608 /* if we've chdir'd, rebuild the path name */ 609 if (curdir && *fname != '/') { 610 (void)sprintf(path, "%s/%s", curdir, fname); 611 if (stream = fopen(path, "r")) { 612 fname = path; 613 goto found; 614 } 615 } 616 /* look in -I and system include directories. */ 617 name = Dir_FindFile(fname, parseIncPath); 618 if (!name) 619 name = Dir_FindFile(fname, sysIncPath); 620 if (!name || !(stream = fopen(name, "r"))) 621 return(FALSE); 622 fname = name; 623 /* 624 * set the MAKEFILE variable desired by System V fans -- the 625 * placement of the setting here means it gets set to the last 626 * makefile specified, as it is set by SysV make. 627 */ 628 found: Var_Set("MAKEFILE", fname, VAR_GLOBAL); 629 Parse_File(fname, stream); 630 (void)fclose(stream); 631 } 632 return(TRUE); 633 } 634 635 /*- 636 * Error -- 637 * Print an error message given its format. 638 * 639 * Results: 640 * None. 641 * 642 * Side Effects: 643 * The message is printed. 644 */ 645 /* VARARGS */ 646 void 647 Error(va_alist) 648 va_dcl 649 { 650 va_list ap; 651 char *fmt; 652 653 va_start(ap); 654 fmt = va_arg(ap, char *); 655 (void)vfprintf(stderr, fmt, ap); 656 va_end(ap); 657 (void)fprintf(stderr, "\n"); 658 (void)fflush(stderr); 659 } 660 661 /*- 662 * Fatal -- 663 * Produce a Fatal error message. If jobs are running, waits for them 664 * to finish. 665 * 666 * Results: 667 * None 668 * 669 * Side Effects: 670 * The program exits 671 */ 672 /* VARARGS */ 673 void 674 Fatal(va_alist) 675 va_dcl 676 { 677 va_list ap; 678 char *fmt; 679 680 if (jobsRunning) 681 Job_Wait(); 682 683 va_start(ap); 684 fmt = va_arg(ap, char *); 685 (void)vfprintf(stderr, fmt, ap); 686 va_end(ap); 687 (void)fprintf(stderr, "\n"); 688 (void)fflush(stderr); 689 690 if (DEBUG(GRAPH2)) 691 Targ_PrintGraph(2); 692 exit(2); /* Not 1 so -q can distinguish error */ 693 } 694 695 /* 696 * Punt -- 697 * Major exception once jobs are being created. Kills all jobs, prints 698 * a message and exits. 699 * 700 * Results: 701 * None 702 * 703 * Side Effects: 704 * All children are killed indiscriminately and the program Lib_Exits 705 */ 706 /* VARARGS */ 707 void 708 Punt(va_alist) 709 va_dcl 710 { 711 va_list ap; 712 char *fmt; 713 714 (void)fprintf(stderr, "make: "); 715 va_start(ap); 716 fmt = va_arg(ap, char *); 717 (void)vfprintf(stderr, fmt, ap); 718 va_end(ap); 719 (void)fprintf(stderr, "\n"); 720 (void)fflush(stderr); 721 722 DieHorribly(); 723 } 724 725 /*- 726 * DieHorribly -- 727 * Exit without giving a message. 728 * 729 * Results: 730 * None 731 * 732 * Side Effects: 733 * A big one... 734 */ 735 void 736 DieHorribly() 737 { 738 if (jobsRunning) 739 Job_AbortAll(); 740 if (DEBUG(GRAPH2)) 741 Targ_PrintGraph(2); 742 exit(2); /* Not 1, so -q can distinguish error */ 743 } 744 745 /* 746 * Finish -- 747 * Called when aborting due to errors in child shell to signal 748 * abnormal exit. 749 * 750 * Results: 751 * None 752 * 753 * Side Effects: 754 * The program exits 755 */ 756 void 757 Finish(errors) 758 int errors; /* number of errors encountered in Make_Make */ 759 { 760 Fatal("%d error%s", errors, errors == 1 ? "" : "s"); 761 } 762 763 /* 764 * emalloc -- 765 * malloc, but die on error. 766 */ 767 char * 768 emalloc(len) 769 u_int len; 770 { 771 char *p, *malloc(); 772 773 if (!(p = malloc(len))) 774 enomem(); 775 return(p); 776 } 777 778 /* 779 * enomem -- 780 * die when out of memory. 781 */ 782 enomem() 783 { 784 (void)fprintf(stderr, "make: %s.\n", strerror(errno)); 785 exit(2); 786 } 787 788 /* 789 * usage -- 790 * exit with usage message 791 */ 792 usage() 793 { 794 (void)fprintf(stderr, 795 "usage: make [-eiknqrst] [-D variable] [-d flags] [-f makefile ]\n\ 796 [-I directory] [-j max_jobs] [variable=value]\n"); 797 exit(2); 798 } 799
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