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 1.13 1994/03/05 00:34:53 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/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 <errno.h> 84 #include <fcntl.h> 85 #include <stdio.h> 86 #if __STDC__ 87 #include <stdarg.h> 88 #else 89 #include <varargs.h> 90 #endif 91 #include "make.h" 92 #include "hash.h" 93 #include "dir.h" 94 #include "job.h" 95 #include "pathnames.h" 96 97 #ifndef DEFMAXLOCAL 98 #define DEFMAXLOCAL DEFMAXJOBS 99 #endif DEFMAXLOCAL 100 101 #define MAKEFLAGS ".MAKEFLAGS" 102 103 Lst create; /* Targets to be made */ 104 time_t now; /* Time at start of make */ 105 GNode *DEFAULT; /* .DEFAULT node */ 106 Boolean allPrecious; /* .PRECIOUS given on line by itself */ 107 108 static Boolean noBuiltins; /* -r flag */ 109 static Lst makefiles; /* ordered list of makefiles to read */ 110 int maxJobs; /* -J argument */ 111 static int maxLocal; /* -L argument */ 112 Boolean compatMake; /* -B argument */ 113 Boolean debug; /* -d flag */ 114 Boolean noExecute; /* -n flag */ 115 Boolean keepgoing; /* -k flag */ 116 Boolean queryFlag; /* -q flag */ 117 Boolean touchFlag; /* -t flag */ 118 Boolean usePipes; /* !-P flag */ 119 Boolean ignoreErrors; /* -i flag */ 120 Boolean beSilent; /* -s flag */ 121 Boolean oldVars; /* variable substitution style */ 122 Boolean checkEnvFirst; /* -e flag */ 123 static Boolean jobsRunning; /* TRUE if the jobs might be running */ 124 125 static Boolean ReadMakefile(); 126 static void usage(); 127 128 static char *curdir; /* startup directory */ 129 static char *objdir; /* where we chdir'ed to */ 130 131 /*- 132 * MainParseArgs -- 133 * Parse a given argument vector. Called from main() and from 134 * Main_ParseArgLine() when the .MAKEFLAGS target is used. 135 * 136 * XXX: Deal with command line overriding .MAKEFLAGS in makefile 137 * 138 * Results: 139 * None 140 * 141 * Side Effects: 142 * Various global and local flags will be set depending on the flags 143 * given 144 */ 145 static void 146 MainParseArgs(argc, argv) 147 int argc; 148 char **argv; 149 { 150 extern int optind; 151 extern char *optarg; 152 char c; 153 154 optind = 1; /* since we're called more than once */ 155 #ifdef notyet 156 # define OPTFLAGS "BD:I:L:PSd:ef:ij:knqrst" 157 #else 158 # define OPTFLAGS "D:I:d:ef:ij:knqrst" 159 #endif 160 rearg: while((c = getopt(argc, argv, OPTFLAGS)) != EOF) { 161 switch(c) { 162 case 'D': 163 Var_Set(optarg, "1", VAR_GLOBAL); 164 Var_Append(MAKEFLAGS, "-D", VAR_GLOBAL); 165 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 166 break; 167 case 'I': 168 Parse_AddIncludeDir(optarg); 169 Var_Append(MAKEFLAGS, "-I", VAR_GLOBAL); 170 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 171 break; 172 #ifdef notyet 173 case 'B': 174 compatMake = TRUE; 175 break; 176 case 'L': 177 maxLocal = atoi(optarg); 178 Var_Append(MAKEFLAGS, "-L", VAR_GLOBAL); 179 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 180 break; 181 case 'P': 182 usePipes = FALSE; 183 Var_Append(MAKEFLAGS, "-P", VAR_GLOBAL); 184 break; 185 case 'S': 186 keepgoing = FALSE; 187 Var_Append(MAKEFLAGS, "-S", VAR_GLOBAL); 188 break; 189 #endif 190 case 'd': { 191 char *modules = optarg; 192 193 for (; *modules; ++modules) 194 switch (*modules) { 195 case 'A': 196 debug = ~0; 197 break; 198 case 'a': 199 debug |= DEBUG_ARCH; 200 break; 201 case 'c': 202 debug |= DEBUG_COND; 203 break; 204 case 'd': 205 debug |= DEBUG_DIR; 206 break; 207 case 'f': 208 debug |= DEBUG_FOR; 209 break; 210 case 'g': 211 if (modules[1] == '1') { 212 debug |= DEBUG_GRAPH1; 213 ++modules; 214 } 215 else if (modules[1] == '2') { 216 debug |= DEBUG_GRAPH2; 217 ++modules; 218 } 219 break; 220 case 'j': 221 debug |= DEBUG_JOB; 222 break; 223 case 'm': 224 debug |= DEBUG_MAKE; 225 break; 226 case 's': 227 debug |= DEBUG_SUFF; 228 break; 229 case 't': 230 debug |= DEBUG_TARG; 231 break; 232 case 'v': 233 debug |= DEBUG_VAR; 234 break; 235 default: 236 (void)fprintf(stderr, 237 "make: illegal argument to d option -- %c\n", 238 *modules); 239 usage(); 240 } 241 Var_Append(MAKEFLAGS, "-d", VAR_GLOBAL); 242 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 243 break; 244 } 245 case 'e': 246 checkEnvFirst = TRUE; 247 Var_Append(MAKEFLAGS, "-e", VAR_GLOBAL); 248 break; 249 case 'f': 250 (void)Lst_AtEnd(makefiles, (ClientData)optarg); 251 break; 252 case 'i': 253 ignoreErrors = TRUE; 254 Var_Append(MAKEFLAGS, "-i", VAR_GLOBAL); 255 break; 256 case 'j': 257 maxJobs = atoi(optarg); 258 Var_Append(MAKEFLAGS, "-j", VAR_GLOBAL); 259 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 260 break; 261 case 'k': 262 keepgoing = TRUE; 263 Var_Append(MAKEFLAGS, "-k", VAR_GLOBAL); 264 break; 265 case 'n': 266 noExecute = TRUE; 267 Var_Append(MAKEFLAGS, "-n", VAR_GLOBAL); 268 break; 269 case 'q': 270 queryFlag = TRUE; 271 /* Kind of nonsensical, wot? */ 272 Var_Append(MAKEFLAGS, "-q", VAR_GLOBAL); 273 break; 274 case 'r': 275 noBuiltins = TRUE; 276 Var_Append(MAKEFLAGS, "-r", VAR_GLOBAL); 277 break; 278 case 's': 279 beSilent = TRUE; 280 Var_Append(MAKEFLAGS, "-s", VAR_GLOBAL); 281 break; 282 case 't': 283 touchFlag = TRUE; 284 Var_Append(MAKEFLAGS, "-t", VAR_GLOBAL); 285 break; 286 default: 287 case '?': 288 usage(); 289 } 290 } 291 292 oldVars = TRUE; 293 294 /* 295 * See if the rest of the arguments are variable assignments and 296 * perform them if so. Else take them to be targets and stuff them 297 * on the end of the "create" list. 298 */ 299 for (argv += optind, argc -= optind; *argv; ++argv, --argc) 300 if (Parse_IsVar(*argv)) 301 Parse_DoVar(*argv, VAR_CMD); 302 else { 303 if (!**argv) 304 Punt("illegal (null) argument."); 305 if (**argv == '-') { 306 if ((*argv)[1]) 307 optind = 0; /* -flag... */ 308 else 309 optind = 1; /* - */ 310 goto rearg; 311 } 312 (void)Lst_AtEnd(create, (ClientData)*argv); 313 } 314 } 315 316 /*- 317 * Main_ParseArgLine -- 318 * Used by the parse module when a .MFLAGS or .MAKEFLAGS target 319 * is encountered and by main() when reading the .MAKEFLAGS envariable. 320 * Takes a line of arguments and breaks it into its 321 * component words and passes those words and the number of them to the 322 * MainParseArgs function. 323 * The line should have all its leading whitespace removed. 324 * 325 * Results: 326 * None 327 * 328 * Side Effects: 329 * Only those that come from the various arguments. 330 */ 331 void 332 Main_ParseArgLine(line) 333 char *line; /* Line to fracture */ 334 { 335 char **argv; /* Manufactured argument vector */ 336 int argc; /* Number of arguments in argv */ 337 338 if (line == NULL) 339 return; 340 for (; *line == ' '; ++line) 341 continue; 342 if (!*line) 343 return; 344 345 argv = brk_string(line, &argc); 346 MainParseArgs(argc, argv); 347 } 348 349 /*- 350 * main -- 351 * The main function, for obvious reasons. Initializes variables 352 * and a few modules, then parses the arguments give it in the 353 * environment and on the command line. Reads the system makefile 354 * followed by either Makefile, makefile or the file given by the 355 * -f argument. Sets the .MAKEFLAGS PMake variable based on all the 356 * flags it has received by then uses either the Make or the Compat 357 * module to create the initial list of targets. 358 * 359 * Results: 360 * If -q was given, exits -1 if anything was out-of-date. Else it exits 361 * 0. 362 * 363 * Side Effects: 364 * The program exits when done. Targets are created. etc. etc. etc. 365 */ 366 int 367 main(argc, argv) 368 int argc; 369 char **argv; 370 { 371 Lst targs; /* target nodes to create -- passed to Make_Init */ 372 Boolean outOfDate = TRUE; /* FALSE if all targets up to date */ 373 struct stat sb, sa; 374 char *p, *path, *pwd, *getenv(), *getwd(); 375 char mdpath[MAXPATHLEN + 1]; 376 char obpath[MAXPATHLEN + 1]; 377 char cdpath[MAXPATHLEN + 1]; 378 379 /* 380 * Find where we are and take care of PWD for the automounter... 381 * All this code is so that we know where we are when we start up 382 * on a different machine with pmake. 383 */ 384 curdir = cdpath; 385 if (getwd(curdir) == NULL) { 386 (void)fprintf(stderr, "make: %s.\n", curdir); 387 exit(2); 388 } 389 390 if (stat(curdir, &sa) == -1) { 391 (void)fprintf(stderr, "make: %s: %s.\n", 392 curdir, strerror(errno)); 393 exit(2); 394 } 395 396 if ((pwd = getenv("PWD")) != NULL) { 397 if (stat(pwd, &sb) == 0 && sa.st_ino == sb.st_ino && 398 sa.st_dev == sb.st_dev) 399 (void) strcpy(curdir, pwd); 400 } 401 402 403 /* 404 * if the MAKEOBJDIR (or by default, the _PATH_OBJDIR) directory 405 * exists, change into it and build there. Once things are 406 * initted, have to add the original directory to the search path, 407 * and modify the paths for the Makefiles apropriately. The 408 * current directory is also placed as a variable for make scripts. 409 */ 410 if (!(path = getenv("MAKEOBJDIR"))) { 411 path = _PATH_OBJDIR; 412 (void) sprintf(mdpath, "%s.%s", path, MACHINE); 413 } 414 else 415 (void) strncpy(mdpath, path, MAXPATHLEN + 1); 416 417 if (stat(mdpath, &sb) == 0 && S_ISDIR(sb.st_mode)) { 418 419 if (chdir(mdpath)) { 420 (void)fprintf(stderr, "make warning: %s: %s.\n", 421 mdpath, strerror(errno)); 422 objdir = curdir; 423 } 424 else { 425 if (mdpath[0] != '/') { 426 (void) sprintf(obpath, "%s/%s", curdir, mdpath); 427 objdir = obpath; 428 } 429 else 430 objdir = mdpath; 431 } 432 } 433 else { 434 if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) { 435 436 if (chdir(path)) { 437 (void)fprintf(stderr, "make warning: %s: %s.\n", 438 path, strerror(errno)); 439 objdir = curdir; 440 } 441 else { 442 if (path[0] != '/') { 443 (void) sprintf(obpath, "%s/%s", curdir, 444 path); 445 objdir = obpath; 446 } 447 else 448 objdir = obpath; 449 } 450 } 451 else 452 objdir = curdir; 453 } 454 455 setenv("PWD", objdir, 1); 456 457 create = Lst_Init(FALSE); 458 makefiles = Lst_Init(FALSE); 459 beSilent = FALSE; /* Print commands as executed */ 460 ignoreErrors = FALSE; /* Pay attention to non-zero returns */ 461 noExecute = FALSE; /* Execute all commands */ 462 keepgoing = FALSE; /* Stop on error */ 463 allPrecious = FALSE; /* Remove targets when interrupted */ 464 queryFlag = FALSE; /* This is not just a check-run */ 465 noBuiltins = FALSE; /* Read the built-in rules */ 466 touchFlag = FALSE; /* Actually update targets */ 467 usePipes = TRUE; /* Catch child output in pipes */ 468 debug = 0; /* No debug verbosity, please. */ 469 jobsRunning = FALSE; 470 471 maxJobs = DEFMAXJOBS; /* Set default max concurrency */ 472 maxLocal = DEFMAXLOCAL; /* Set default local max concurrency */ 473 #ifdef notyet 474 compatMake = FALSE; /* No compat mode */ 475 #else 476 compatMake = TRUE; /* No compat mode */ 477 #endif 478 479 480 /* 481 * Initialize the parsing, directory and variable modules to prepare 482 * for the reading of inclusion paths and variable settings on the 483 * command line 484 */ 485 Dir_Init(); /* Initialize directory structures so -I flags 486 * can be processed correctly */ 487 Parse_Init(); /* Need to initialize the paths of #include 488 * directories */ 489 Var_Init(); /* As well as the lists of variables for 490 * parsing arguments */ 491 if (objdir != curdir) 492 Dir_AddDir(dirSearchPath, curdir); 493 Var_Set(".CURDIR", curdir, VAR_GLOBAL); 494 Var_Set(".OBJDIR", objdir, VAR_GLOBAL); 495 496 /* 497 * Initialize various variables. 498 * MAKE also gets this name, for compatibility 499 * .MAKEFLAGS gets set to the empty string just in case. 500 * MFLAGS also gets initialized empty, for compatibility. 501 */ 502 Var_Set("MAKE", argv[0], VAR_GLOBAL); 503 Var_Set(MAKEFLAGS, "", VAR_GLOBAL); 504 Var_Set("MFLAGS", "", VAR_GLOBAL); 505 #ifdef MACHINE 506 Var_Set("MACHINE", MACHINE, VAR_GLOBAL); 507 #endif 508 #ifdef MACHINE_ARCH 509 Var_Set("MACHINE_ARCH", MACHINE_ARCH, VAR_GLOBAL); 510 #endif 511 512 /* 513 * First snag any flags out of the MAKE environment variable. 514 * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's 515 * in a different format). 516 */ 517 #ifdef POSIX 518 Main_ParseArgLine(getenv("MAKEFLAGS")); 519 #else 520 Main_ParseArgLine(getenv("MAKE")); 521 #endif 522 523 MainParseArgs(argc, argv); 524 525 /* 526 * Initialize archive, target and suffix modules in preparation for 527 * parsing the makefile(s) 528 */ 529 Arch_Init(); 530 Targ_Init(); 531 Suff_Init(); 532 533 DEFAULT = NILGNODE; 534 (void)time(&now); 535 536 /* 537 * Set up the .TARGETS variable to contain the list of targets to be 538 * created. If none specified, make the variable empty -- the parser 539 * will fill the thing in with the default or .MAIN target. 540 */ 541 if (!Lst_IsEmpty(create)) { 542 LstNode ln; 543 544 for (ln = Lst_First(create); ln != NILLNODE; 545 ln = Lst_Succ(ln)) { 546 char *name = (char *)Lst_Datum(ln); 547 548 Var_Append(".TARGETS", name, VAR_GLOBAL); 549 } 550 } else 551 Var_Set(".TARGETS", "", VAR_GLOBAL); 552 553 /* 554 * Read in the built-in rules first, followed by the specified makefile, 555 * if it was (makefile != (char *) NULL), or the default Makefile and 556 * makefile, in that order, if it wasn't. 557 */ 558 if (!noBuiltins && !ReadMakefile(_PATH_DEFSYSMK)) 559 Fatal("make: no system rules (%s).", _PATH_DEFSYSMK); 560 561 if (!Lst_IsEmpty(makefiles)) { 562 LstNode ln; 563 564 ln = Lst_Find(makefiles, (ClientData)NULL, ReadMakefile); 565 if (ln != NILLNODE) 566 Fatal("make: cannot open %s.", (char *)Lst_Datum(ln)); 567 } else if (!ReadMakefile("makefile")) 568 (void)ReadMakefile("Makefile"); 569 570 (void)ReadMakefile(".depend"); 571 572 Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL), VAR_GLOBAL); 573 574 /* Install all the flags into the MAKE envariable. */ 575 if (((p = Var_Value(MAKEFLAGS, VAR_GLOBAL)) != NULL) && *p) 576 #ifdef POSIX 577 setenv("MAKEFLAGS", p, 1); 578 #else 579 setenv("MAKE", p, 1); 580 #endif 581 582 /* 583 * For compatibility, look at the directories in the VPATH variable 584 * and add them to the search path, if the variable is defined. The 585 * variable's value is in the same format as the PATH envariable, i.e. 586 * <directory>:<directory>:<directory>... 587 */ 588 if (Var_Exists("VPATH", VAR_CMD)) { 589 char *vpath, *path, *cp, savec; 590 /* 591 * GCC stores string constants in read-only memory, but 592 * Var_Subst will want to write this thing, so store it 593 * in an array 594 */ 595 static char VPATH[] = "${VPATH}"; 596 597 vpath = Var_Subst(NULL, VPATH, VAR_CMD, FALSE); 598 path = vpath; 599 do { 600 /* skip to end of directory */ 601 for (cp = path; *cp != ':' && *cp != '\0'; cp++) 602 continue; 603 /* Save terminator character so know when to stop */ 604 savec = *cp; 605 *cp = '\0'; 606 /* Add directory to search path */ 607 Dir_AddDir(dirSearchPath, path); 608 *cp = savec; 609 path = cp + 1; 610 } while (savec == ':'); 611 (void)free((Address)vpath); 612 } 613 614 /* 615 * Now that all search paths have been read for suffixes et al, it's 616 * time to add the default search path to their lists... 617 */ 618 Suff_DoPaths(); 619 620 /* print the initial graph, if the user requested it */ 621 if (DEBUG(GRAPH1)) 622 Targ_PrintGraph(1); 623 624 /* 625 * Have now read the entire graph and need to make a list of targets 626 * to create. If none was given on the command line, we consult the 627 * parsing module to find the main target(s) to create. 628 */ 629 if (Lst_IsEmpty(create)) 630 targs = Parse_MainName(); 631 else 632 targs = Targ_FindList(create, TARG_CREATE); 633 634 /* 635 * this was original amMake -- want to allow parallelism, so put this 636 * back in, eventually. 637 */ 638 if (!compatMake) { 639 /* 640 * Initialize job module before traversing the graph, now that 641 * any .BEGIN and .END targets have been read. This is done 642 * only if the -q flag wasn't given (to prevent the .BEGIN from 643 * being executed should it exist). 644 */ 645 if (!queryFlag) { 646 if (maxLocal == -1) 647 maxLocal = maxJobs; 648 Job_Init(maxJobs, maxLocal); 649 jobsRunning = TRUE; 650 } 651 652 /* Traverse the graph, checking on all the targets */ 653 outOfDate = Make_Run(targs); 654 } else 655 /* 656 * Compat_Init will take care of creating all the targets as 657 * well as initializing the module. 658 */ 659 Compat_Run(targs); 660 661 /* print the graph now it's been processed if the user requested it */ 662 if (DEBUG(GRAPH2)) 663 Targ_PrintGraph(2); 664 665 if (queryFlag && outOfDate) 666 return(1); 667 else 668 return(0); 669 } 670 671 /*- 672 * ReadMakefile -- 673 * Open and parse the given makefile. 674 * 675 * Results: 676 * TRUE if ok. FALSE if couldn't open file. 677 * 678 * Side Effects: 679 * lots 680 */ 681 static Boolean 682 ReadMakefile(fname) 683 char *fname; /* makefile to read */ 684 { 685 extern Lst parseIncPath, sysIncPath; 686 FILE *stream; 687 char *name, path[MAXPATHLEN + 1]; 688 689 if (!strcmp(fname, "-")) { 690 Parse_File("(stdin)", stdin); 691 Var_Set("MAKEFILE", "", VAR_GLOBAL); 692 } else { 693 if ((stream = fopen(fname, "r")) != NULL) 694 goto found; 695 /* if we've chdir'd, rebuild the path name */ 696 if (curdir != objdir && *fname != '/') { 697 (void)sprintf(path, "%s/%s", curdir, fname); 698 if ((stream = fopen(path, "r")) != NULL) { 699 fname = path; 700 goto found; 701 } 702 } 703 /* look in -I and system include directories. */ 704 name = Dir_FindFile(fname, parseIncPath); 705 if (!name) 706 name = Dir_FindFile(fname, sysIncPath); 707 if (!name || !(stream = fopen(name, "r"))) 708 return(FALSE); 709 fname = name; 710 /* 711 * set the MAKEFILE variable desired by System V fans -- the 712 * placement of the setting here means it gets set to the last 713 * makefile specified, as it is set by SysV make. 714 */ 715 found: Var_Set("MAKEFILE", fname, VAR_GLOBAL); 716 Parse_File(fname, stream); 717 (void)fclose(stream); 718 } 719 return(TRUE); 720 } 721 722 /*- 723 * Error -- 724 * Print an error message given its format. 725 * 726 * Results: 727 * None. 728 * 729 * Side Effects: 730 * The message is printed. 731 */ 732 /* VARARGS */ 733 void 734 #if __STDC__ 735 Error(char *fmt, ...) 736 #else 737 Error(va_alist) 738 va_dcl 739 #endif 740 { 741 va_list ap; 742 #if __STDC__ 743 va_start(ap, fmt); 744 #else 745 char *fmt; 746 747 va_start(ap); 748 fmt = va_arg(ap, char *); 749 #endif 750 (void)vfprintf(stderr, fmt, ap); 751 va_end(ap); 752 (void)fprintf(stderr, "\n"); 753 (void)fflush(stderr); 754 } 755 756 /*- 757 * Fatal -- 758 * Produce a Fatal error message. If jobs are running, waits for them 759 * to finish. 760 * 761 * Results: 762 * None 763 * 764 * Side Effects: 765 * The program exits 766 */ 767 /* VARARGS */ 768 void 769 #if __STDC__ 770 Fatal(char *fmt, ...) 771 #else 772 Fatal(va_alist) 773 va_dcl 774 #endif 775 { 776 va_list ap; 777 #if __STDC__ 778 va_start(ap, fmt); 779 #else 780 char *fmt; 781 782 va_start(ap); 783 fmt = va_arg(ap, char *); 784 #endif 785 if (jobsRunning) 786 Job_Wait(); 787 788 (void)vfprintf(stderr, fmt, ap); 789 va_end(ap); 790 (void)fprintf(stderr, "\n"); 791 (void)fflush(stderr); 792 793 if (DEBUG(GRAPH2)) 794 Targ_PrintGraph(2); 795 exit(2); /* Not 1 so -q can distinguish error */ 796 } 797 798 /* 799 * Punt -- 800 * Major exception once jobs are being created. Kills all jobs, prints 801 * a message and exits. 802 * 803 * Results: 804 * None 805 * 806 * Side Effects: 807 * All children are killed indiscriminately and the program Lib_Exits 808 */ 809 /* VARARGS */ 810 void 811 #if __STDC__ 812 Punt(char *fmt, ...) 813 #else 814 Punt(va_alist) 815 va_dcl 816 #endif 817 { 818 va_list ap; 819 #if __STDC__ 820 va_start(ap, fmt); 821 #else 822 char *fmt; 823 824 va_start(ap); 825 fmt = va_arg(ap, char *); 826 #endif 827 828 (void)fprintf(stderr, "make: "); 829 (void)vfprintf(stderr, fmt, ap); 830 va_end(ap); 831 (void)fprintf(stderr, "\n"); 832 (void)fflush(stderr); 833 834 DieHorribly(); 835 } 836 837 /*- 838 * DieHorribly -- 839 * Exit without giving a message. 840 * 841 * Results: 842 * None 843 * 844 * Side Effects: 845 * A big one... 846 */ 847 void 848 DieHorribly() 849 { 850 if (jobsRunning) 851 Job_AbortAll(); 852 if (DEBUG(GRAPH2)) 853 Targ_PrintGraph(2); 854 exit(2); /* Not 1, so -q can distinguish error */ 855 } 856 857 /* 858 * Finish -- 859 * Called when aborting due to errors in child shell to signal 860 * abnormal exit. 861 * 862 * Results: 863 * None 864 * 865 * Side Effects: 866 * The program exits 867 */ 868 void 869 Finish(errors) 870 int errors; /* number of errors encountered in Make_Make */ 871 { 872 Fatal("%d error%s", errors, errors == 1 ? "" : "s"); 873 } 874 875 /* 876 * emalloc -- 877 * malloc, but die on error. 878 */ 879 char * 880 emalloc(len) 881 u_int len; 882 { 883 char *p; 884 885 if (!(p = malloc(len))) 886 enomem(); 887 return(p); 888 } 889 890 /* 891 * enomem -- 892 * die when out of memory. 893 */ 894 void 895 enomem() 896 { 897 (void)fprintf(stderr, "make: %s.\n", strerror(errno)); 898 exit(2); 899 } 900 901 /* 902 * usage -- 903 * exit with usage message 904 */ 905 static void 906 usage() 907 { 908 (void)fprintf(stderr, 909 "usage: make [-eiknqrst] [-D variable] [-d flags] [-f makefile ]\n\ 910 [-I directory] [-j max_jobs] [variable=value]\n"); 911 exit(2); 912 } 913