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[] = "from: @(#)main.c 5.25 (Berkeley) 4/1/91";*/ 47 static char rcsid[] = "$Id: main.c,v 1.6 1993/08/23 05:29:31 cgd 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/param.h> 78 #include <sys/signal.h> 79 #include <sys/stat.h> 80 #include <errno.h> 81 #include <fcntl.h> 82 #include <stdio.h> 83 #include <varargs.h> 84 #include "make.h" 85 #include "pathnames.h" 86 87 #ifndef DEFMAXLOCAL 88 #define DEFMAXLOCAL DEFMAXJOBS 89 #endif DEFMAXLOCAL 90 91 #define MAKEFLAGS ".MAKEFLAGS" 92 93 Lst create; /* Targets to be made */ 94 time_t now; /* Time at start of make */ 95 GNode *DEFAULT; /* .DEFAULT node */ 96 Boolean allPrecious; /* .PRECIOUS given on line by itself */ 97 98 static Boolean noBuiltins; /* -r flag */ 99 static Lst makefiles; /* ordered list of makefiles to read */ 100 int maxJobs; /* -J argument */ 101 static int maxLocal; /* -L argument */ 102 Boolean debug; /* -d flag */ 103 Boolean noExecute; /* -n flag */ 104 Boolean keepgoing; /* -k flag */ 105 Boolean queryFlag; /* -q flag */ 106 Boolean touchFlag; /* -t flag */ 107 Boolean usePipes; /* !-P flag */ 108 Boolean ignoreErrors; /* -i flag */ 109 Boolean beSilent; /* -s flag */ 110 Boolean oldVars; /* variable substitution style */ 111 Boolean checkEnvFirst; /* -e flag */ 112 static Boolean jobsRunning; /* TRUE if the jobs might be running */ 113 114 static Boolean ReadMakefile(); 115 116 static char *curdir; /* pathname of dir where make ran */ 117 static int obj_is_elsewhere; /* if chdir'd for an architecture */ 118 119 /*- 120 * MainParseArgs -- 121 * Parse a given argument vector. Called from main() and from 122 * Main_ParseArgLine() when the .MAKEFLAGS target is used. 123 * 124 * XXX: Deal with command line overriding .MAKEFLAGS in makefile 125 * 126 * Results: 127 * None 128 * 129 * Side Effects: 130 * Various global and local flags will be set depending on the flags 131 * given 132 */ 133 static void 134 MainParseArgs(argc, argv) 135 int argc; 136 char **argv; 137 { 138 extern int optind; 139 extern char *optarg; 140 register int i; 141 register char *cp; 142 char c; 143 144 optind = 1; /* since we're called more than once */ 145 rearg: while((c = getopt(argc, argv, "D:I:d:ef:ij:knqrst")) != EOF) { 146 switch(c) { 147 case 'D': 148 Var_Set(optarg, "1", VAR_GLOBAL); 149 Var_Append(MAKEFLAGS, "-D", VAR_GLOBAL); 150 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 151 break; 152 case 'I': 153 Parse_AddIncludeDir(optarg); 154 Var_Append(MAKEFLAGS, "-I", VAR_GLOBAL); 155 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 156 break; 157 #ifdef notdef 158 case 'L': 159 maxLocal = atoi(optarg); 160 Var_Append(MAKEFLAGS, "-L", VAR_GLOBAL); 161 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 162 break; 163 case 'P': 164 usePipes = FALSE; 165 Var_Append(MAKEFLAGS, "-P", VAR_GLOBAL); 166 break; 167 case 'S': 168 keepgoing = FALSE; 169 Var_Append(MAKEFLAGS, "-S", VAR_GLOBAL); 170 break; 171 #endif 172 case 'd': { 173 char *modules = optarg; 174 175 for (; *modules; ++modules) 176 switch (*modules) { 177 case 'A': 178 debug = ~0; 179 break; 180 case 'a': 181 debug |= DEBUG_ARCH; 182 break; 183 case 'c': 184 debug |= DEBUG_COND; 185 break; 186 case 'd': 187 debug |= DEBUG_DIR; 188 break; 189 case 'g': 190 if (modules[1] == '1') { 191 debug |= DEBUG_GRAPH1; 192 ++modules; 193 } 194 else if (modules[1] == '2') { 195 debug |= DEBUG_GRAPH2; 196 ++modules; 197 } 198 break; 199 case 'j': 200 debug |= DEBUG_JOB; 201 break; 202 case 'm': 203 debug |= DEBUG_MAKE; 204 break; 205 case 's': 206 debug |= DEBUG_SUFF; 207 break; 208 case 't': 209 debug |= DEBUG_TARG; 210 break; 211 case 'v': 212 debug |= DEBUG_VAR; 213 break; 214 default: 215 (void)fprintf(stderr, 216 "make: illegal argument to d option -- %c\n", 217 *modules); 218 usage(); 219 } 220 Var_Append(MAKEFLAGS, "-d", VAR_GLOBAL); 221 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 222 break; 223 } 224 case 'e': 225 checkEnvFirst = TRUE; 226 Var_Append(MAKEFLAGS, "-e", VAR_GLOBAL); 227 break; 228 case 'f': 229 (void)Lst_AtEnd(makefiles, (ClientData)optarg); 230 break; 231 case 'i': 232 ignoreErrors = TRUE; 233 Var_Append(MAKEFLAGS, "-i", VAR_GLOBAL); 234 break; 235 case 'j': 236 maxJobs = atoi(optarg); 237 Var_Append(MAKEFLAGS, "-J", VAR_GLOBAL); 238 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 239 break; 240 case 'k': 241 keepgoing = TRUE; 242 Var_Append(MAKEFLAGS, "-k", VAR_GLOBAL); 243 break; 244 case 'n': 245 noExecute = TRUE; 246 Var_Append(MAKEFLAGS, "-n", VAR_GLOBAL); 247 break; 248 case 'q': 249 queryFlag = TRUE; 250 /* Kind of nonsensical, wot? */ 251 Var_Append(MAKEFLAGS, "-q", VAR_GLOBAL); 252 break; 253 case 'r': 254 noBuiltins = TRUE; 255 Var_Append(MAKEFLAGS, "-r", VAR_GLOBAL); 256 break; 257 case 's': 258 beSilent = TRUE; 259 Var_Append(MAKEFLAGS, "-s", VAR_GLOBAL); 260 break; 261 case 't': 262 touchFlag = TRUE; 263 Var_Append(MAKEFLAGS, "-t", VAR_GLOBAL); 264 break; 265 default: 266 case '?': 267 usage(); 268 } 269 } 270 271 oldVars = TRUE; 272 273 /* 274 * See if the rest of the arguments are variable assignments and 275 * perform them if so. Else take them to be targets and stuff them 276 * on the end of the "create" list. 277 */ 278 for (argv += optind, argc -= optind; *argv; ++argv, --argc) 279 if (Parse_IsVar(*argv)) 280 Parse_DoVar(*argv, VAR_CMD); 281 else { 282 if (!**argv) 283 Punt("illegal (null) argument."); 284 if (**argv == '-') { 285 /* 17 Mar 92*/ if ((*argv)[1]) 286 /* 17 Mar 92*/ optind = 0; /* -flag... */ 287 /* 17 Mar 92*/ else 288 /* 17 Mar 92*/ optind = 1; /* - */ 289 goto rearg; 290 } 291 (void)Lst_AtEnd(create, (ClientData)*argv); 292 } 293 } 294 295 /*- 296 * Main_ParseArgLine -- 297 * Used by the parse module when a .MFLAGS or .MAKEFLAGS target 298 * is encountered and by main() when reading the .MAKEFLAGS envariable. 299 * Takes a line of arguments and breaks it into its 300 * component words and passes those words and the number of them to the 301 * MainParseArgs function. 302 * The line should have all its leading whitespace removed. 303 * 304 * Results: 305 * None 306 * 307 * Side Effects: 308 * Only those that come from the various arguments. 309 */ 310 void 311 Main_ParseArgLine(line) 312 char *line; /* Line to fracture */ 313 { 314 char **argv; /* Manufactured argument vector */ 315 int argc; /* Number of arguments in argv */ 316 317 if (line == NULL) 318 return; 319 for (; *line == ' '; ++line); 320 if (!*line) 321 return; 322 323 argv = brk_string(line, &argc); 324 MainParseArgs(argc, argv); 325 } 326 327 /*- 328 * main -- 329 * The main function, for obvious reasons. Initializes variables 330 * and a few modules, then parses the arguments give it in the 331 * environment and on the command line. Reads the system makefile 332 * followed by either Makefile, makefile or the file given by the 333 * -f argument. Sets the .MAKEFLAGS PMake variable based on all the 334 * flags it has received by then uses either the Make or the Compat 335 * module to create the initial list of targets. 336 * 337 * Results: 338 * If -q was given, exits -1 if anything was out-of-date. Else it exits 339 * 0. 340 * 341 * Side Effects: 342 * The program exits when done. Targets are created. etc. etc. etc. 343 */ 344 main(argc, argv) 345 int argc; 346 char **argv; 347 { 348 Lst targs; /* target nodes to create -- passed to Make_Init */ 349 Boolean outOfDate; /* FALSE if all targets up to date */ 350 struct stat sb; 351 char *p, *path, *getenv(); 352 353 /* 354 * if the MAKEOBJDIR (or by default, the _PATH_OBJDIR) directory 355 * exists, change into it and build there. Once things are 356 * initted, have to add the original directory to the search path, 357 * and modify the paths for the Makefiles apropriately. The 358 * current directory is also placed as a variable for make scripts. 359 */ 360 if (!(path = getenv("MAKEOBJDIR"))) 361 path = _PATH_OBJDIR; 362 curdir = emalloc((u_int)MAXPATHLEN + 1); 363 if (!getwd(curdir)) { 364 (void)fprintf(stderr, "make: %s.\n", curdir); 365 exit(2); 366 } 367 if (!lstat(path, &sb)) { 368 if (chdir(path)) 369 (void)fprintf(stderr, "make warning: %s: %s.\n", 370 path, strerror(errno)); 371 else 372 obj_is_elsewhere = 1; 373 } 374 375 create = Lst_Init(FALSE); 376 makefiles = Lst_Init(FALSE); 377 beSilent = FALSE; /* Print commands as executed */ 378 ignoreErrors = FALSE; /* Pay attention to non-zero returns */ 379 noExecute = FALSE; /* Execute all commands */ 380 keepgoing = FALSE; /* Stop on error */ 381 allPrecious = FALSE; /* Remove targets when interrupted */ 382 queryFlag = FALSE; /* This is not just a check-run */ 383 noBuiltins = FALSE; /* Read the built-in rules */ 384 touchFlag = FALSE; /* Actually update targets */ 385 usePipes = TRUE; /* Catch child output in pipes */ 386 debug = 0; /* No debug verbosity, please. */ 387 jobsRunning = FALSE; 388 389 maxJobs = DEFMAXJOBS; /* Set default max concurrency */ 390 maxLocal = DEFMAXLOCAL; /* Set default local max concurrency */ 391 392 /* 393 * Initialize the parsing, directory and variable modules to prepare 394 * for the reading of inclusion paths and variable settings on the 395 * command line 396 */ 397 Dir_Init(); /* Initialize directory structures so -I flags 398 * can be processed correctly */ 399 Parse_Init(); /* Need to initialize the paths of #include 400 * directories */ 401 Var_Init(); /* As well as the lists of variables for 402 * parsing arguments */ 403 404 if (obj_is_elsewhere) 405 Dir_AddDir(dirSearchPath, curdir); 406 Var_Set(".CURDIR", curdir, VAR_GLOBAL); 407 408 /* 409 * Initialize various variables. 410 * MAKE also gets this name, for compatibility 411 * .MAKEFLAGS gets set to the empty string just in case. 412 * MFLAGS also gets initialized empty, for compatibility. 413 */ 414 Var_Set("MAKE", argv[0], VAR_GLOBAL); 415 Var_Set(MAKEFLAGS, "", VAR_GLOBAL); 416 Var_Set("MFLAGS", "", VAR_GLOBAL); 417 Var_Set("MACHINE", MACHINE, VAR_GLOBAL); 418 419 /* 420 * First snag any flags out of the MAKE environment variable. 421 * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's 422 * in a different format). 423 */ 424 #ifdef POSIX 425 Main_ParseArgLine(getenv("MAKEFLAGS")); 426 #else 427 Main_ParseArgLine(getenv("MAKE")); 428 #endif 429 430 MainParseArgs(argc, argv); 431 432 /* 433 * Initialize archive, target and suffix modules in preparation for 434 * parsing the makefile(s) 435 */ 436 Arch_Init(); 437 Targ_Init(); 438 Suff_Init(); 439 440 DEFAULT = NILGNODE; 441 (void)time(&now); 442 443 /* 444 * Set up the .TARGETS variable to contain the list of targets to be 445 * created. If none specified, make the variable empty -- the parser 446 * will fill the thing in with the default or .MAIN target. 447 */ 448 if (!Lst_IsEmpty(create)) { 449 LstNode ln; 450 451 for (ln = Lst_First(create); ln != NILLNODE; 452 ln = Lst_Succ(ln)) { 453 char *name = (char *)Lst_Datum(ln); 454 455 Var_Append(".TARGETS", name, VAR_GLOBAL); 456 } 457 } else 458 Var_Set(".TARGETS", "", VAR_GLOBAL); 459 460 /* 461 * Read in the built-in rules first, followed by the specified makefile, 462 * if it was (makefile != (char *) NULL), or the default Makefile and 463 * makefile, in that order, if it wasn't. 464 */ 465 if (!noBuiltins && !ReadMakefile(_PATH_DEFSYSMK)) 466 Fatal("make: no system rules (%s).", _PATH_DEFSYSMK); 467 468 if (!Lst_IsEmpty(makefiles)) { 469 LstNode ln; 470 471 ln = Lst_Find(makefiles, (ClientData)NULL, ReadMakefile); 472 if (ln != NILLNODE) 473 Fatal("make: cannot open %s.", (char *)Lst_Datum(ln)); 474 } else if (!ReadMakefile("makefile")) 475 (void)ReadMakefile("Makefile"); 476 477 (void)ReadMakefile(".depend"); 478 479 Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL), VAR_GLOBAL); 480 481 /* Install all the flags into the MAKE envariable. */ 482 if ((p = Var_Value(MAKEFLAGS, VAR_GLOBAL)) && *p) 483 #ifdef POSIX 484 setenv("MAKEFLAGS", p, 1); 485 #else 486 setenv("MAKE", p, 1); 487 #endif 488 489 /* 490 * For compatibility, look at the directories in the VPATH variable 491 * and add them to the search path, if the variable is defined. The 492 * variable's value is in the same format as the PATH envariable, i.e. 493 * <directory>:<directory>:<directory>... 494 */ 495 if (Var_Exists("VPATH", VAR_CMD)) { 496 char *vpath, *path, *cp, savec; 497 /* 498 * GCC stores string constants in read-only memory, but 499 * Var_Subst will want to write this thing, so store it 500 * in an array 501 */ 502 static char VPATH[] = "${VPATH}"; 503 504 vpath = Var_Subst(VPATH, VAR_CMD, FALSE); 505 path = vpath; 506 do { 507 /* skip to end of directory */ 508 for (cp = path; *cp != ':' && *cp != '\0'; cp++); 509 /* Save terminator character so know when to stop */ 510 savec = *cp; 511 *cp = '\0'; 512 /* Add directory to search path */ 513 Dir_AddDir(dirSearchPath, path); 514 *cp = savec; 515 path = cp + 1; 516 } while (savec == ':'); 517 (void)free((Address)vpath); 518 } 519 520 /* 521 * Now that all search paths have been read for suffixes et al, it's 522 * time to add the default search path to their lists... 523 */ 524 Suff_DoPaths(); 525 526 /* print the initial graph, if the user requested it */ 527 if (DEBUG(GRAPH1)) 528 Targ_PrintGraph(1); 529 530 /* 531 * Have now read the entire graph and need to make a list of targets 532 * to create. If none was given on the command line, we consult the 533 * parsing module to find the main target(s) to create. 534 */ 535 if (Lst_IsEmpty(create)) 536 targs = Parse_MainName(); 537 else 538 targs = Targ_FindList(create, TARG_CREATE); 539 540 /* 541 * this was original amMake -- want to allow parallelism, so put this 542 * back in, eventually. 543 */ 544 if (0) { 545 /* 546 * Initialize job module before traversing the graph, now that 547 * any .BEGIN and .END targets have been read. This is done 548 * only if the -q flag wasn't given (to prevent the .BEGIN from 549 * being executed should it exist). 550 */ 551 if (!queryFlag) { 552 if (maxLocal == -1) 553 maxLocal = maxJobs; 554 Job_Init(maxJobs, maxLocal); 555 jobsRunning = TRUE; 556 } 557 558 /* Traverse the graph, checking on all the targets */ 559 outOfDate = Make_Run(targs); 560 } else 561 /* 562 * Compat_Init will take care of creating all the targets as 563 * well as initializing the module. 564 */ 565 Compat_Run(targs); 566 567 /* print the graph now it's been processed if the user requested it */ 568 if (DEBUG(GRAPH2)) 569 Targ_PrintGraph(2); 570 571 if (queryFlag && outOfDate) 572 exit(1); 573 else 574 exit(0); 575 } 576 577 /*- 578 * ReadMakefile -- 579 * Open and parse the given makefile. 580 * 581 * Results: 582 * TRUE if ok. FALSE if couldn't open file. 583 * 584 * Side Effects: 585 * lots 586 */ 587 static Boolean 588 ReadMakefile(fname) 589 char *fname; /* makefile to read */ 590 { 591 extern Lst parseIncPath, sysIncPath; 592 FILE *stream; 593 char *name, path[MAXPATHLEN + 1]; 594 595 if (!strcmp(fname, "-")) { 596 Parse_File("(stdin)", stdin); 597 Var_Set("MAKEFILE", "", VAR_GLOBAL); 598 } else { 599 if (stream = fopen(fname, "r")) 600 goto found; 601 /* if we've chdir'd, rebuild the path name */ 602 if (obj_is_elsewhere && *fname != '/') { 603 (void)sprintf(path, "%s/%s", curdir, fname); 604 if (stream = fopen(path, "r")) { 605 fname = path; 606 goto found; 607 } 608 } 609 /* look in -I and system include directories. */ 610 name = Dir_FindFile(fname, parseIncPath); 611 if (!name) 612 name = Dir_FindFile(fname, sysIncPath); 613 if (!name || !(stream = fopen(name, "r"))) 614 return(FALSE); 615 fname = name; 616 /* 617 * set the MAKEFILE variable desired by System V fans -- the 618 * placement of the setting here means it gets set to the last 619 * makefile specified, as it is set by SysV make. 620 */ 621 found: Var_Set("MAKEFILE", fname, VAR_GLOBAL); 622 Parse_File(fname, stream); 623 (void)fclose(stream); 624 } 625 return(TRUE); 626 } 627 628 /*- 629 * Error -- 630 * Print an error message given its format. 631 * 632 * Results: 633 * None. 634 * 635 * Side Effects: 636 * The message is printed. 637 */ 638 /* VARARGS */ 639 void 640 Error(va_alist) 641 va_dcl 642 { 643 va_list ap; 644 char *fmt; 645 646 va_start(ap); 647 fmt = va_arg(ap, char *); 648 (void)vfprintf(stderr, fmt, ap); 649 va_end(ap); 650 (void)fprintf(stderr, "\n"); 651 (void)fflush(stderr); 652 } 653 654 /*- 655 * Fatal -- 656 * Produce a Fatal error message. If jobs are running, waits for them 657 * to finish. 658 * 659 * Results: 660 * None 661 * 662 * Side Effects: 663 * The program exits 664 */ 665 /* VARARGS */ 666 void 667 Fatal(va_alist) 668 va_dcl 669 { 670 va_list ap; 671 char *fmt; 672 673 if (jobsRunning) 674 Job_Wait(); 675 676 va_start(ap); 677 fmt = va_arg(ap, char *); 678 (void)vfprintf(stderr, fmt, ap); 679 va_end(ap); 680 (void)fprintf(stderr, "\n"); 681 (void)fflush(stderr); 682 683 if (DEBUG(GRAPH2)) 684 Targ_PrintGraph(2); 685 exit(2); /* Not 1 so -q can distinguish error */ 686 } 687 688 /* 689 * Punt -- 690 * Major exception once jobs are being created. Kills all jobs, prints 691 * a message and exits. 692 * 693 * Results: 694 * None 695 * 696 * Side Effects: 697 * All children are killed indiscriminately and the program Lib_Exits 698 */ 699 /* VARARGS */ 700 void 701 Punt(va_alist) 702 va_dcl 703 { 704 va_list ap; 705 char *fmt; 706 707 (void)fprintf(stderr, "make: "); 708 va_start(ap); 709 fmt = va_arg(ap, char *); 710 (void)vfprintf(stderr, fmt, ap); 711 va_end(ap); 712 (void)fprintf(stderr, "\n"); 713 (void)fflush(stderr); 714 715 DieHorribly(); 716 } 717 718 /*- 719 * DieHorribly -- 720 * Exit without giving a message. 721 * 722 * Results: 723 * None 724 * 725 * Side Effects: 726 * A big one... 727 */ 728 void 729 DieHorribly() 730 { 731 if (jobsRunning) 732 Job_AbortAll(); 733 if (DEBUG(GRAPH2)) 734 Targ_PrintGraph(2); 735 exit(2); /* Not 1, so -q can distinguish error */ 736 } 737 738 /* 739 * Finish -- 740 * Called when aborting due to errors in child shell to signal 741 * abnormal exit. 742 * 743 * Results: 744 * None 745 * 746 * Side Effects: 747 * The program exits 748 */ 749 void 750 Finish(errors) 751 int errors; /* number of errors encountered in Make_Make */ 752 { 753 Fatal("%d error%s", errors, errors == 1 ? "" : "s"); 754 } 755 756 /* 757 * emalloc -- 758 * malloc, but die on error. 759 */ 760 char * 761 emalloc(len) 762 u_int len; 763 { 764 char *p, *malloc(); 765 766 if (!(p = malloc(len))) 767 enomem(); 768 return(p); 769 } 770 771 /* 772 * enomem -- 773 * die when out of memory. 774 */ 775 enomem() 776 { 777 (void)fprintf(stderr, "make: %s.\n", strerror(errno)); 778 exit(2); 779 } 780 781 /* 782 * usage -- 783 * exit with usage message 784 */ 785 usage() 786 { 787 (void)fprintf(stderr, 788 "usage: make [-eiknqrst] [-D variable] [-d flags] [-f makefile ]\n\ 789 [-I directory] [-j max_jobs] [variable=value]\n"); 790 exit(2); 791 } 792