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 1.7 1993/10/23 02:32:03 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 mdpath[MAXPATHLEN + 1], *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 snprintf(mdpath, MAXPATHLEN + 1, "%s.%s", path, MACHINE); 363 } else { 364 strncpy(mdpath, path, MAXPATHLEN + 1); 365 } 366 367 curdir = emalloc((u_int)MAXPATHLEN + 1); 368 if (!getwd(curdir)) { 369 (void)fprintf(stderr, "make: %s.\n", curdir); 370 exit(2); 371 } 372 if (!lstat(mdpath, &sb)) { 373 if (chdir(mdpath)) 374 (void)fprintf(stderr, "make warning: %s: %s.\n", 375 mdpath, strerror(errno)); 376 else 377 obj_is_elsewhere = 1; 378 } else { 379 if (!lstat(path, &sb)) { 380 if (chdir(path)) 381 (void)fprintf(stderr, "make warning: %s: %s.\n", 382 path, strerror(errno)); 383 else 384 obj_is_elsewhere = 1; 385 } 386 } 387 388 create = Lst_Init(FALSE); 389 makefiles = Lst_Init(FALSE); 390 beSilent = FALSE; /* Print commands as executed */ 391 ignoreErrors = FALSE; /* Pay attention to non-zero returns */ 392 noExecute = FALSE; /* Execute all commands */ 393 keepgoing = FALSE; /* Stop on error */ 394 allPrecious = FALSE; /* Remove targets when interrupted */ 395 queryFlag = FALSE; /* This is not just a check-run */ 396 noBuiltins = FALSE; /* Read the built-in rules */ 397 touchFlag = FALSE; /* Actually update targets */ 398 usePipes = TRUE; /* Catch child output in pipes */ 399 debug = 0; /* No debug verbosity, please. */ 400 jobsRunning = FALSE; 401 402 maxJobs = DEFMAXJOBS; /* Set default max concurrency */ 403 maxLocal = DEFMAXLOCAL; /* Set default local max concurrency */ 404 405 /* 406 * Initialize the parsing, directory and variable modules to prepare 407 * for the reading of inclusion paths and variable settings on the 408 * command line 409 */ 410 Dir_Init(); /* Initialize directory structures so -I flags 411 * can be processed correctly */ 412 Parse_Init(); /* Need to initialize the paths of #include 413 * directories */ 414 Var_Init(); /* As well as the lists of variables for 415 * parsing arguments */ 416 417 if (obj_is_elsewhere) 418 Dir_AddDir(dirSearchPath, curdir); 419 Var_Set(".CURDIR", curdir, VAR_GLOBAL); 420 421 /* 422 * Initialize various variables. 423 * MAKE also gets this name, for compatibility 424 * .MAKEFLAGS gets set to the empty string just in case. 425 * MFLAGS also gets initialized empty, for compatibility. 426 */ 427 Var_Set("MAKE", argv[0], VAR_GLOBAL); 428 Var_Set(MAKEFLAGS, "", VAR_GLOBAL); 429 Var_Set("MFLAGS", "", VAR_GLOBAL); 430 Var_Set("MACHINE", MACHINE, VAR_GLOBAL); 431 432 /* 433 * First snag any flags out of the MAKE environment variable. 434 * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's 435 * in a different format). 436 */ 437 #ifdef POSIX 438 Main_ParseArgLine(getenv("MAKEFLAGS")); 439 #else 440 Main_ParseArgLine(getenv("MAKE")); 441 #endif 442 443 MainParseArgs(argc, argv); 444 445 /* 446 * Initialize archive, target and suffix modules in preparation for 447 * parsing the makefile(s) 448 */ 449 Arch_Init(); 450 Targ_Init(); 451 Suff_Init(); 452 453 DEFAULT = NILGNODE; 454 (void)time(&now); 455 456 /* 457 * Set up the .TARGETS variable to contain the list of targets to be 458 * created. If none specified, make the variable empty -- the parser 459 * will fill the thing in with the default or .MAIN target. 460 */ 461 if (!Lst_IsEmpty(create)) { 462 LstNode ln; 463 464 for (ln = Lst_First(create); ln != NILLNODE; 465 ln = Lst_Succ(ln)) { 466 char *name = (char *)Lst_Datum(ln); 467 468 Var_Append(".TARGETS", name, VAR_GLOBAL); 469 } 470 } else 471 Var_Set(".TARGETS", "", VAR_GLOBAL); 472 473 /* 474 * Read in the built-in rules first, followed by the specified makefile, 475 * if it was (makefile != (char *) NULL), or the default Makefile and 476 * makefile, in that order, if it wasn't. 477 */ 478 if (!noBuiltins && !ReadMakefile(_PATH_DEFSYSMK)) 479 Fatal("make: no system rules (%s).", _PATH_DEFSYSMK); 480 481 if (!Lst_IsEmpty(makefiles)) { 482 LstNode ln; 483 484 ln = Lst_Find(makefiles, (ClientData)NULL, ReadMakefile); 485 if (ln != NILLNODE) 486 Fatal("make: cannot open %s.", (char *)Lst_Datum(ln)); 487 } else if (!ReadMakefile("makefile")) 488 (void)ReadMakefile("Makefile"); 489 490 (void)ReadMakefile(".depend"); 491 492 Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL), VAR_GLOBAL); 493 494 /* Install all the flags into the MAKE envariable. */ 495 if ((p = Var_Value(MAKEFLAGS, VAR_GLOBAL)) && *p) 496 #ifdef POSIX 497 setenv("MAKEFLAGS", p, 1); 498 #else 499 setenv("MAKE", p, 1); 500 #endif 501 502 /* 503 * For compatibility, look at the directories in the VPATH variable 504 * and add them to the search path, if the variable is defined. The 505 * variable's value is in the same format as the PATH envariable, i.e. 506 * <directory>:<directory>:<directory>... 507 */ 508 if (Var_Exists("VPATH", VAR_CMD)) { 509 char *vpath, *path, *cp, savec; 510 /* 511 * GCC stores string constants in read-only memory, but 512 * Var_Subst will want to write this thing, so store it 513 * in an array 514 */ 515 static char VPATH[] = "${VPATH}"; 516 517 vpath = Var_Subst(VPATH, VAR_CMD, FALSE); 518 path = vpath; 519 do { 520 /* skip to end of directory */ 521 for (cp = path; *cp != ':' && *cp != '\0'; cp++); 522 /* Save terminator character so know when to stop */ 523 savec = *cp; 524 *cp = '\0'; 525 /* Add directory to search path */ 526 Dir_AddDir(dirSearchPath, path); 527 *cp = savec; 528 path = cp + 1; 529 } while (savec == ':'); 530 (void)free((Address)vpath); 531 } 532 533 /* 534 * Now that all search paths have been read for suffixes et al, it's 535 * time to add the default search path to their lists... 536 */ 537 Suff_DoPaths(); 538 539 /* print the initial graph, if the user requested it */ 540 if (DEBUG(GRAPH1)) 541 Targ_PrintGraph(1); 542 543 /* 544 * Have now read the entire graph and need to make a list of targets 545 * to create. If none was given on the command line, we consult the 546 * parsing module to find the main target(s) to create. 547 */ 548 if (Lst_IsEmpty(create)) 549 targs = Parse_MainName(); 550 else 551 targs = Targ_FindList(create, TARG_CREATE); 552 553 /* 554 * this was original amMake -- want to allow parallelism, so put this 555 * back in, eventually. 556 */ 557 if (0) { 558 /* 559 * Initialize job module before traversing the graph, now that 560 * any .BEGIN and .END targets have been read. This is done 561 * only if the -q flag wasn't given (to prevent the .BEGIN from 562 * being executed should it exist). 563 */ 564 if (!queryFlag) { 565 if (maxLocal == -1) 566 maxLocal = maxJobs; 567 Job_Init(maxJobs, maxLocal); 568 jobsRunning = TRUE; 569 } 570 571 /* Traverse the graph, checking on all the targets */ 572 outOfDate = Make_Run(targs); 573 } else 574 /* 575 * Compat_Init will take care of creating all the targets as 576 * well as initializing the module. 577 */ 578 Compat_Run(targs); 579 580 /* print the graph now it's been processed if the user requested it */ 581 if (DEBUG(GRAPH2)) 582 Targ_PrintGraph(2); 583 584 if (queryFlag && outOfDate) 585 exit(1); 586 else 587 exit(0); 588 } 589 590 /*- 591 * ReadMakefile -- 592 * Open and parse the given makefile. 593 * 594 * Results: 595 * TRUE if ok. FALSE if couldn't open file. 596 * 597 * Side Effects: 598 * lots 599 */ 600 static Boolean 601 ReadMakefile(fname) 602 char *fname; /* makefile to read */ 603 { 604 extern Lst parseIncPath, sysIncPath; 605 FILE *stream; 606 char *name, path[MAXPATHLEN + 1]; 607 608 if (!strcmp(fname, "-")) { 609 Parse_File("(stdin)", stdin); 610 Var_Set("MAKEFILE", "", VAR_GLOBAL); 611 } else { 612 if (stream = fopen(fname, "r")) 613 goto found; 614 /* if we've chdir'd, rebuild the path name */ 615 if (obj_is_elsewhere && *fname != '/') { 616 (void)sprintf(path, "%s/%s", curdir, fname); 617 if (stream = fopen(path, "r")) { 618 fname = path; 619 goto found; 620 } 621 } 622 /* look in -I and system include directories. */ 623 name = Dir_FindFile(fname, parseIncPath); 624 if (!name) 625 name = Dir_FindFile(fname, sysIncPath); 626 if (!name || !(stream = fopen(name, "r"))) 627 return(FALSE); 628 fname = name; 629 /* 630 * set the MAKEFILE variable desired by System V fans -- the 631 * placement of the setting here means it gets set to the last 632 * makefile specified, as it is set by SysV make. 633 */ 634 found: Var_Set("MAKEFILE", fname, VAR_GLOBAL); 635 Parse_File(fname, stream); 636 (void)fclose(stream); 637 } 638 return(TRUE); 639 } 640 641 /*- 642 * Error -- 643 * Print an error message given its format. 644 * 645 * Results: 646 * None. 647 * 648 * Side Effects: 649 * The message is printed. 650 */ 651 /* VARARGS */ 652 void 653 Error(va_alist) 654 va_dcl 655 { 656 va_list ap; 657 char *fmt; 658 659 va_start(ap); 660 fmt = va_arg(ap, char *); 661 (void)vfprintf(stderr, fmt, ap); 662 va_end(ap); 663 (void)fprintf(stderr, "\n"); 664 (void)fflush(stderr); 665 } 666 667 /*- 668 * Fatal -- 669 * Produce a Fatal error message. If jobs are running, waits for them 670 * to finish. 671 * 672 * Results: 673 * None 674 * 675 * Side Effects: 676 * The program exits 677 */ 678 /* VARARGS */ 679 void 680 Fatal(va_alist) 681 va_dcl 682 { 683 va_list ap; 684 char *fmt; 685 686 if (jobsRunning) 687 Job_Wait(); 688 689 va_start(ap); 690 fmt = va_arg(ap, char *); 691 (void)vfprintf(stderr, fmt, ap); 692 va_end(ap); 693 (void)fprintf(stderr, "\n"); 694 (void)fflush(stderr); 695 696 if (DEBUG(GRAPH2)) 697 Targ_PrintGraph(2); 698 exit(2); /* Not 1 so -q can distinguish error */ 699 } 700 701 /* 702 * Punt -- 703 * Major exception once jobs are being created. Kills all jobs, prints 704 * a message and exits. 705 * 706 * Results: 707 * None 708 * 709 * Side Effects: 710 * All children are killed indiscriminately and the program Lib_Exits 711 */ 712 /* VARARGS */ 713 void 714 Punt(va_alist) 715 va_dcl 716 { 717 va_list ap; 718 char *fmt; 719 720 (void)fprintf(stderr, "make: "); 721 va_start(ap); 722 fmt = va_arg(ap, char *); 723 (void)vfprintf(stderr, fmt, ap); 724 va_end(ap); 725 (void)fprintf(stderr, "\n"); 726 (void)fflush(stderr); 727 728 DieHorribly(); 729 } 730 731 /*- 732 * DieHorribly -- 733 * Exit without giving a message. 734 * 735 * Results: 736 * None 737 * 738 * Side Effects: 739 * A big one... 740 */ 741 void 742 DieHorribly() 743 { 744 if (jobsRunning) 745 Job_AbortAll(); 746 if (DEBUG(GRAPH2)) 747 Targ_PrintGraph(2); 748 exit(2); /* Not 1, so -q can distinguish error */ 749 } 750 751 /* 752 * Finish -- 753 * Called when aborting due to errors in child shell to signal 754 * abnormal exit. 755 * 756 * Results: 757 * None 758 * 759 * Side Effects: 760 * The program exits 761 */ 762 void 763 Finish(errors) 764 int errors; /* number of errors encountered in Make_Make */ 765 { 766 Fatal("%d error%s", errors, errors == 1 ? "" : "s"); 767 } 768 769 /* 770 * emalloc -- 771 * malloc, but die on error. 772 */ 773 char * 774 emalloc(len) 775 u_int len; 776 { 777 char *p, *malloc(); 778 779 if (!(p = malloc(len))) 780 enomem(); 781 return(p); 782 } 783 784 /* 785 * enomem -- 786 * die when out of memory. 787 */ 788 enomem() 789 { 790 (void)fprintf(stderr, "make: %s.\n", strerror(errno)); 791 exit(2); 792 } 793 794 /* 795 * usage -- 796 * exit with usage message 797 */ 798 usage() 799 { 800 (void)fprintf(stderr, 801 "usage: make [-eiknqrst] [-D variable] [-d flags] [-f makefile ]\n\ 802 [-I directory] [-j max_jobs] [variable=value]\n"); 803 exit(2); 804 } 805