main.c revision 1.68
1 /* $NetBSD: main.c,v 1.68 2001/06/09 05:22:47 sjg Exp $ */ 2 3 /* 4 * Copyright (c) 1988, 1989, 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * Copyright (c) 1989 by Berkeley Softworks 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * Adam de Boor. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 */ 40 41 #ifdef MAKE_BOOTSTRAP 42 static char rcsid[] = "$NetBSD: main.c,v 1.68 2001/06/09 05:22:47 sjg Exp $"; 43 #else 44 #include <sys/cdefs.h> 45 #ifndef lint 46 __COPYRIGHT("@(#) Copyright (c) 1988, 1989, 1990, 1993\n\ 47 The Regents of the University of California. All rights reserved.\n"); 48 #endif /* not lint */ 49 50 #ifndef lint 51 #if 0 52 static char sccsid[] = "@(#)main.c 8.3 (Berkeley) 3/19/94"; 53 #else 54 __RCSID("$NetBSD: main.c,v 1.68 2001/06/09 05:22:47 sjg Exp $"); 55 #endif 56 #endif /* not lint */ 57 #endif 58 59 /*- 60 * main.c -- 61 * The main file for this entire program. Exit routines etc 62 * reside here. 63 * 64 * Utility functions defined in this file: 65 * Main_ParseArgLine Takes a line of arguments, breaks them and 66 * treats them as if they were given when first 67 * invoked. Used by the parse module to implement 68 * the .MFLAGS target. 69 * 70 * Error Print a tagged error message. The global 71 * MAKE variable must have been defined. This 72 * takes a format string and two optional 73 * arguments for it. 74 * 75 * Fatal Print an error message and exit. Also takes 76 * a format string and two arguments. 77 * 78 * Punt Aborts all jobs and exits with a message. Also 79 * takes a format string and two arguments. 80 * 81 * Finish Finish things up by printing the number of 82 * errors which occured, as passed to it, and 83 * exiting. 84 */ 85 86 #include <sys/types.h> 87 #include <sys/time.h> 88 #include <sys/param.h> 89 #include <sys/resource.h> 90 #include <sys/signal.h> 91 #include <sys/stat.h> 92 #ifndef MAKE_BOOTSTRAP 93 #include <sys/utsname.h> 94 #endif 95 #include <sys/wait.h> 96 #include <errno.h> 97 #include <fcntl.h> 98 #include <stdio.h> 99 #include <stdlib.h> 100 #include <time.h> 101 #ifdef __STDC__ 102 #include <stdarg.h> 103 #else 104 #include <varargs.h> 105 #endif 106 #include "make.h" 107 #include "hash.h" 108 #include "dir.h" 109 #include "job.h" 110 #include "pathnames.h" 111 #include "trace.h" 112 113 #ifdef USE_IOVEC 114 #include <sys/uio.h> 115 #endif 116 117 #ifndef DEFMAXLOCAL 118 #define DEFMAXLOCAL DEFMAXJOBS 119 #endif /* DEFMAXLOCAL */ 120 121 Lst create; /* Targets to be made */ 122 time_t now; /* Time at start of make */ 123 GNode *DEFAULT; /* .DEFAULT node */ 124 Boolean allPrecious; /* .PRECIOUS given on line by itself */ 125 126 static Boolean noBuiltins; /* -r flag */ 127 static Lst makefiles; /* ordered list of makefiles to read */ 128 static Boolean printVars; /* print value of one or more vars */ 129 static Lst variables; /* list of variables to print */ 130 int maxJobs; /* -j argument */ 131 static int maxLocal; /* -L argument */ 132 Boolean compatMake; /* -B argument */ 133 Boolean debug; /* -d flag */ 134 Boolean noExecute; /* -n flag */ 135 Boolean noRecursiveExecute; /* -N flag */ 136 Boolean keepgoing; /* -k flag */ 137 Boolean queryFlag; /* -q flag */ 138 Boolean touchFlag; /* -t flag */ 139 Boolean usePipes; /* !-P flag */ 140 Boolean ignoreErrors; /* -i flag */ 141 Boolean beSilent; /* -s flag */ 142 Boolean oldVars; /* variable substitution style */ 143 Boolean checkEnvFirst; /* -e flag */ 144 Boolean parseWarnFatal; /* -W flag */ 145 Boolean jobServer; /* -J flag */ 146 static Boolean jobsRunning; /* TRUE if the jobs might be running */ 147 static const char * tracefile; 148 static char * Check_Cwd_av __P((int, char **, int)); 149 static void MainParseArgs __P((int, char **)); 150 char * chdir_verify_path __P((char *, char *)); 151 static int ReadMakefile __P((ClientData, ClientData)); 152 static void usage __P((void)); 153 154 static char *curdir; /* startup directory */ 155 static char *objdir; /* where we chdir'ed to */ 156 char *progname; /* the program name */ 157 158 Boolean forceJobs = FALSE; 159 160 extern Lst parseIncPath; 161 162 /*- 163 * MainParseArgs -- 164 * Parse a given argument vector. Called from main() and from 165 * Main_ParseArgLine() when the .MAKEFLAGS target is used. 166 * 167 * XXX: Deal with command line overriding .MAKEFLAGS in makefile 168 * 169 * Results: 170 * None 171 * 172 * Side Effects: 173 * Various global and local flags will be set depending on the flags 174 * given 175 */ 176 static void 177 MainParseArgs(argc, argv) 178 int argc; 179 char **argv; 180 { 181 char *p; 182 int c; 183 184 optind = 1; /* since we're called more than once */ 185 #ifdef REMOTE 186 # define OPTFLAGS "BD:I:J:L:NPST:V:Wd:ef:ij:km:nqrst" 187 #else 188 # define OPTFLAGS "BD:I:J:NPST:V:Wd:ef:ij:km:nqrst" 189 #endif 190 rearg: while((c = getopt(argc, argv, OPTFLAGS)) != -1) { 191 switch(c) { 192 case 'D': 193 Var_Set(optarg, "1", VAR_GLOBAL); 194 Var_Append(MAKEFLAGS, "-D", VAR_GLOBAL); 195 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 196 break; 197 case 'I': 198 Parse_AddIncludeDir(optarg); 199 Var_Append(MAKEFLAGS, "-I", VAR_GLOBAL); 200 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 201 break; 202 case 'J': 203 if (sscanf(optarg, "%d,%d", &job_pipe[0], &job_pipe[1]) != 2) { 204 /* backslash to avoid trigraph ??) */ 205 (void)fprintf(stderr, 206 "%s: internal error -- J option malformed (%s?\?)\n", 207 progname, optarg); 208 usage(); 209 } 210 if ((fcntl(job_pipe[0], F_GETFD, 0) < 0) || 211 (fcntl(job_pipe[1], F_GETFD, 0) < 0)) { 212 #if 0 213 (void)fprintf(stderr, 214 "%s: warning -- J descriptors were closed!\n", 215 progname); 216 #endif 217 job_pipe[0] = -1; 218 job_pipe[1] = -1; 219 compatMake = TRUE; 220 } else { 221 Var_Append(MAKEFLAGS, "-J", VAR_GLOBAL); 222 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 223 jobServer = TRUE; 224 } 225 break; 226 case 'V': 227 printVars = TRUE; 228 (void)Lst_AtEnd(variables, (ClientData)optarg); 229 Var_Append(MAKEFLAGS, "-V", VAR_GLOBAL); 230 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 231 break; 232 case 'B': 233 compatMake = TRUE; 234 break; 235 #ifdef REMOTE 236 case 'L': 237 maxLocal = strtol(optarg, &p, 0); 238 if (*p != '\0' || maxLocal < 1) { 239 (void) fprintf(stderr, "%s: illegal argument to -L -- must be positive integer!\n", 240 progname); 241 exit(1); 242 } 243 Var_Append(MAKEFLAGS, "-L", VAR_GLOBAL); 244 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 245 break; 246 #endif 247 case 'N': 248 noExecute = TRUE; 249 noRecursiveExecute = TRUE; 250 Var_Append(MAKEFLAGS, "-N", VAR_GLOBAL); 251 break; 252 case 'P': 253 usePipes = FALSE; 254 Var_Append(MAKEFLAGS, "-P", VAR_GLOBAL); 255 break; 256 case 'S': 257 keepgoing = FALSE; 258 Var_Append(MAKEFLAGS, "-S", VAR_GLOBAL); 259 break; 260 case 'T': 261 tracefile = estrdup(optarg); 262 Var_Append(MAKEFLAGS, "-T", VAR_GLOBAL); 263 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 264 break; 265 case 'W': 266 parseWarnFatal = TRUE; 267 break; 268 case 'd': { 269 char *modules = optarg; 270 271 for (; *modules; ++modules) 272 switch (*modules) { 273 case 'A': 274 debug = ~0; 275 break; 276 case 'a': 277 debug |= DEBUG_ARCH; 278 break; 279 case 'c': 280 debug |= DEBUG_COND; 281 break; 282 case 'd': 283 debug |= DEBUG_DIR; 284 break; 285 case 'f': 286 debug |= DEBUG_FOR; 287 break; 288 case 'g': 289 if (modules[1] == '1') { 290 debug |= DEBUG_GRAPH1; 291 ++modules; 292 } 293 else if (modules[1] == '2') { 294 debug |= DEBUG_GRAPH2; 295 ++modules; 296 } 297 break; 298 case 'j': 299 debug |= DEBUG_JOB; 300 break; 301 case 'm': 302 debug |= DEBUG_MAKE; 303 break; 304 case 's': 305 debug |= DEBUG_SUFF; 306 break; 307 case 't': 308 debug |= DEBUG_TARG; 309 break; 310 case 'v': 311 debug |= DEBUG_VAR; 312 break; 313 case 'x': 314 debug |= DEBUG_SHELL; 315 break; 316 default: 317 (void)fprintf(stderr, 318 "%s: illegal argument to d option -- %c\n", 319 progname, *modules); 320 usage(); 321 } 322 Var_Append(MAKEFLAGS, "-d", VAR_GLOBAL); 323 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 324 break; 325 } 326 case 'e': 327 checkEnvFirst = TRUE; 328 Var_Append(MAKEFLAGS, "-e", VAR_GLOBAL); 329 break; 330 case 'f': 331 (void)Lst_AtEnd(makefiles, (ClientData)optarg); 332 break; 333 case 'i': 334 ignoreErrors = TRUE; 335 Var_Append(MAKEFLAGS, "-i", VAR_GLOBAL); 336 break; 337 case 'j': 338 forceJobs = TRUE; 339 maxJobs = strtol(optarg, &p, 0); 340 if (*p != '\0' || maxJobs < 1) { 341 (void) fprintf(stderr, "%s: illegal argument to -j -- must be positive integer!\n", 342 progname); 343 exit(1); 344 } 345 #ifndef REMOTE 346 maxLocal = maxJobs; 347 #endif 348 Var_Append(MAKEFLAGS, "-j", VAR_GLOBAL); 349 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 350 break; 351 case 'k': 352 keepgoing = TRUE; 353 Var_Append(MAKEFLAGS, "-k", VAR_GLOBAL); 354 break; 355 case 'm': 356 (void) Dir_AddDir(sysIncPath, optarg); 357 Var_Append(MAKEFLAGS, "-m", VAR_GLOBAL); 358 Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL); 359 break; 360 case 'n': 361 noExecute = TRUE; 362 Var_Append(MAKEFLAGS, "-n", VAR_GLOBAL); 363 break; 364 case 'q': 365 queryFlag = TRUE; 366 /* Kind of nonsensical, wot? */ 367 Var_Append(MAKEFLAGS, "-q", VAR_GLOBAL); 368 break; 369 case 'r': 370 noBuiltins = TRUE; 371 Var_Append(MAKEFLAGS, "-r", VAR_GLOBAL); 372 break; 373 case 's': 374 beSilent = TRUE; 375 Var_Append(MAKEFLAGS, "-s", VAR_GLOBAL); 376 break; 377 case 't': 378 touchFlag = TRUE; 379 Var_Append(MAKEFLAGS, "-t", VAR_GLOBAL); 380 break; 381 default: 382 case '?': 383 usage(); 384 } 385 } 386 387 oldVars = TRUE; 388 389 /* 390 * See if the rest of the arguments are variable assignments and 391 * perform them if so. Else take them to be targets and stuff them 392 * on the end of the "create" list. 393 */ 394 for (argv += optind, argc -= optind; *argv; ++argv, --argc) 395 if (Parse_IsVar(*argv)) { 396 Parse_DoVar(*argv, VAR_CMD); 397 } else { 398 if (!**argv) 399 Punt("illegal (null) argument."); 400 if (**argv == '-') { 401 if ((*argv)[1]) 402 optind = 0; /* -flag... */ 403 else 404 optind = 1; /* - */ 405 goto rearg; 406 } 407 (void)Lst_AtEnd(create, (ClientData)estrdup(*argv)); 408 } 409 } 410 411 /*- 412 * Main_ParseArgLine -- 413 * Used by the parse module when a .MFLAGS or .MAKEFLAGS target 414 * is encountered and by main() when reading the .MAKEFLAGS envariable. 415 * Takes a line of arguments and breaks it into its 416 * component words and passes those words and the number of them to the 417 * MainParseArgs function. 418 * The line should have all its leading whitespace removed. 419 * 420 * Results: 421 * None 422 * 423 * Side Effects: 424 * Only those that come from the various arguments. 425 */ 426 void 427 Main_ParseArgLine(line) 428 char *line; /* Line to fracture */ 429 { 430 char **argv; /* Manufactured argument vector */ 431 int argc; /* Number of arguments in argv */ 432 char *args; /* Space used by the args */ 433 char *buf, *p1; 434 char *argv0 = Var_Value(".MAKE", VAR_GLOBAL, &p1); 435 size_t len; 436 437 if (line == NULL) 438 return; 439 for (; *line == ' '; ++line) 440 continue; 441 if (!*line) 442 return; 443 444 buf = emalloc(len = strlen(line) + strlen(argv0) + 2); 445 (void)snprintf(buf, len, "%s %s", argv0, line); 446 if (p1) 447 free(p1); 448 449 argv = brk_string(buf, &argc, TRUE, &args); 450 free(buf); 451 MainParseArgs(argc, argv); 452 453 free(args); 454 free(argv); 455 } 456 457 char * 458 chdir_verify_path(path, obpath) 459 char *path; 460 char *obpath; 461 { 462 struct stat sb; 463 464 if (strchr(path, '$') != 0) { 465 path = Var_Subst(NULL, path, VAR_GLOBAL, 0); 466 } 467 if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) { 468 if (chdir(path)) { 469 (void)fprintf(stderr, "make warning: %s: %s.\n", 470 path, strerror(errno)); 471 return 0; 472 } 473 else { 474 if (path[0] != '/') { 475 (void) snprintf(obpath, MAXPATHLEN, "%s/%s", 476 curdir, path); 477 return obpath; 478 } 479 else 480 return path; 481 } 482 } 483 484 return 0; 485 } 486 487 488 /*- 489 * main -- 490 * The main function, for obvious reasons. Initializes variables 491 * and a few modules, then parses the arguments give it in the 492 * environment and on the command line. Reads the system makefile 493 * followed by either Makefile, makefile or the file given by the 494 * -f argument. Sets the .MAKEFLAGS PMake variable based on all the 495 * flags it has received by then uses either the Make or the Compat 496 * module to create the initial list of targets. 497 * 498 * Results: 499 * If -q was given, exits -1 if anything was out-of-date. Else it exits 500 * 0. 501 * 502 * Side Effects: 503 * The program exits when done. Targets are created. etc. etc. etc. 504 */ 505 int 506 main(argc, argv) 507 int argc; 508 char **argv; 509 { 510 Lst targs; /* target nodes to create -- passed to Make_Init */ 511 Boolean outOfDate = TRUE; /* FALSE if all targets up to date */ 512 struct stat sb, sa; 513 char *p1, *path, *pathp, *pwd; 514 char mdpath[MAXPATHLEN + 1]; 515 char obpath[MAXPATHLEN + 1]; 516 char cdpath[MAXPATHLEN + 1]; 517 char *machine = getenv("MACHINE"); 518 char *machine_arch = getenv("MACHINE_ARCH"); 519 char *syspath = getenv("MAKESYSPATH"); 520 Lst sysMkPath; /* Path of sys.mk */ 521 char *cp = NULL, *start; 522 /* avoid faults on read-only strings */ 523 static char defsyspath[] = _PATH_DEFSYSPATH; 524 525 if ((progname = strrchr(argv[0], '/')) != NULL) 526 progname++; 527 else 528 progname = argv[0]; 529 #ifdef RLIMIT_NOFILE 530 /* 531 * get rid of resource limit on file descriptors 532 */ 533 { 534 struct rlimit rl; 535 if (getrlimit(RLIMIT_NOFILE, &rl) != -1 && 536 rl.rlim_cur != rl.rlim_max) { 537 rl.rlim_cur = rl.rlim_max; 538 (void) setrlimit(RLIMIT_NOFILE, &rl); 539 } 540 } 541 #endif 542 /* 543 * Find where we are and take care of PWD for the automounter... 544 * All this code is so that we know where we are when we start up 545 * on a different machine with pmake. 546 */ 547 curdir = cdpath; 548 if (getcwd(curdir, MAXPATHLEN) == NULL) { 549 (void)fprintf(stderr, "%s: %s.\n", progname, strerror(errno)); 550 exit(2); 551 } 552 553 if (stat(curdir, &sa) == -1) { 554 (void)fprintf(stderr, "%s: %s: %s.\n", 555 progname, curdir, strerror(errno)); 556 exit(2); 557 } 558 559 /* 560 * Overriding getcwd() with $PWD totally breaks MAKEOBJDIRPREFIX 561 * since the value of curdir can very depending on how we got 562 * here. Ie sitting at a shell prompt (shell that provides $PWD) 563 * or via subdir.mk in which case its likely a shell which does 564 * not provide it. 565 * So, to stop it breaking this case only, we ignore PWD if 566 * MAKEOBJDIRPREFIX is set. 567 */ 568 if ((pwd = getenv("PWD")) != NULL && 569 getenv("MAKEOBJDIRPREFIX") == NULL) { 570 if (stat(pwd, &sb) == 0 && sa.st_ino == sb.st_ino && 571 sa.st_dev == sb.st_dev) 572 (void) strcpy(curdir, pwd); 573 } 574 575 /* 576 * Get the name of this type of MACHINE from utsname 577 * so we can share an executable for similar machines. 578 * (i.e. m68k: amiga hp300, mac68k, sun3, ...) 579 * 580 * Note that both MACHINE and MACHINE_ARCH are decided at 581 * run-time. 582 */ 583 if (!machine) { 584 #ifndef MAKE_BOOTSTRAP 585 struct utsname utsname; 586 587 if (uname(&utsname) == -1) { 588 (void)fprintf(stderr, "%s: uname failed (%s).\n", progname, 589 strerror(errno)); 590 exit(2); 591 } 592 machine = utsname.machine; 593 #else 594 machine = MACHINE; 595 #endif 596 } 597 598 if (!machine_arch) { 599 #ifndef MACHINE_ARCH 600 #ifdef __ARCHITECTURE__ 601 machine_arch = __ARCHITECTURE__; 602 #else 603 machine_arch = "unknown"; /* XXX: no uname -p yet */ 604 #endif 605 #else 606 machine_arch = MACHINE_ARCH; 607 #endif 608 } 609 610 /* 611 * Just in case MAKEOBJDIR wants us to do something tricky. 612 */ 613 Var_Init(); /* Initialize the lists of variables for 614 * parsing arguments */ 615 Var_Set(".CURDIR", curdir, VAR_GLOBAL); 616 Var_Set("MACHINE", machine, VAR_GLOBAL); 617 Var_Set("MACHINE_ARCH", machine_arch, VAR_GLOBAL); 618 #ifdef MAKE_VERSION 619 Var_Set("MAKE_VERSION", MAKE_VERSION, VAR_GLOBAL); 620 #endif 621 Var_Set(".newline", "\n", VAR_GLOBAL); /* handy for :@ loops */ 622 623 /* 624 * If the MAKEOBJDIR (or by default, the _PATH_OBJDIR) directory 625 * exists, change into it and build there. (If a .${MACHINE} suffix 626 * exists, use that directory instead). 627 * Otherwise check MAKEOBJDIRPREFIX`cwd` (or by default, 628 * _PATH_OBJDIRPREFIX`cwd`) and build there if it exists. 629 * If all fails, use the current directory to build. 630 * 631 * Once things are initted, 632 * have to add the original directory to the search path, 633 * and modify the paths for the Makefiles apropriately. The 634 * current directory is also placed as a variable for make scripts. 635 */ 636 if (!(pathp = getenv("MAKEOBJDIRPREFIX"))) { 637 if (!(path = getenv("MAKEOBJDIR"))) { 638 path = _PATH_OBJDIR; 639 pathp = _PATH_OBJDIRPREFIX; 640 (void) snprintf(mdpath, MAXPATHLEN, "%s.%s", 641 path, machine); 642 if (!(objdir = chdir_verify_path(mdpath, obpath))) 643 if (!(objdir=chdir_verify_path(path, obpath))) { 644 (void) snprintf(mdpath, MAXPATHLEN, 645 "%s%s", pathp, curdir); 646 if (!(objdir=chdir_verify_path(mdpath, 647 obpath))) 648 objdir = curdir; 649 } 650 } 651 else if (!(objdir = chdir_verify_path(path, obpath))) 652 objdir = curdir; 653 } 654 else { 655 (void) snprintf(mdpath, MAXPATHLEN, "%s%s", pathp, curdir); 656 if (!(objdir = chdir_verify_path(mdpath, obpath))) 657 objdir = curdir; 658 } 659 660 setenv("PWD", objdir, 1); 661 662 create = Lst_Init(FALSE); 663 makefiles = Lst_Init(FALSE); 664 printVars = FALSE; 665 variables = Lst_Init(FALSE); 666 beSilent = FALSE; /* Print commands as executed */ 667 ignoreErrors = FALSE; /* Pay attention to non-zero returns */ 668 noExecute = FALSE; /* Execute all commands */ 669 noRecursiveExecute = FALSE; /* Execute all .MAKE targets */ 670 keepgoing = FALSE; /* Stop on error */ 671 allPrecious = FALSE; /* Remove targets when interrupted */ 672 queryFlag = FALSE; /* This is not just a check-run */ 673 noBuiltins = FALSE; /* Read the built-in rules */ 674 touchFlag = FALSE; /* Actually update targets */ 675 usePipes = TRUE; /* Catch child output in pipes */ 676 debug = 0; /* No debug verbosity, please. */ 677 jobsRunning = FALSE; 678 679 maxLocal = DEFMAXLOCAL; /* Set default local max concurrency */ 680 #ifdef REMOTE 681 maxJobs = DEFMAXJOBS; /* Set default max concurrency */ 682 #else 683 maxJobs = maxLocal; 684 #endif 685 compatMake = FALSE; /* No compat mode */ 686 687 688 /* 689 * Initialize the parsing, directory and variable modules to prepare 690 * for the reading of inclusion paths and variable settings on the 691 * command line 692 */ 693 694 /* 695 * Initialize directory structures so -I flags can be processed 696 * correctly, if we have a different objdir, then let the directory 697 * know our curdir. 698 */ 699 Dir_Init(curdir != objdir ? curdir : NULL); 700 Parse_Init(); /* Need to initialize the paths of #include 701 * directories */ 702 Var_Set(".OBJDIR", objdir, VAR_GLOBAL); 703 704 /* 705 * Initialize various variables. 706 * MAKE also gets this name, for compatibility 707 * .MAKEFLAGS gets set to the empty string just in case. 708 * MFLAGS also gets initialized empty, for compatibility. 709 */ 710 Var_Set("MAKE", argv[0], VAR_GLOBAL); 711 Var_Set(".MAKE", argv[0], VAR_GLOBAL); 712 Var_Set(MAKEFLAGS, "", VAR_GLOBAL); 713 Var_Set(MAKEOVERRIDES, "", VAR_GLOBAL); 714 Var_Set("MFLAGS", "", VAR_GLOBAL); 715 716 /* 717 * First snag any flags out of the MAKE environment variable. 718 * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's 719 * in a different format). 720 */ 721 #ifdef POSIX 722 Main_ParseArgLine(getenv("MAKEFLAGS")); 723 #else 724 Main_ParseArgLine(getenv("MAKE")); 725 #endif 726 727 MainParseArgs(argc, argv); 728 729 /* 730 * Be compatible if user did not specify -j and did not explicitly 731 * turned compatibility on 732 */ 733 if (!compatMake && !forceJobs) { 734 compatMake = TRUE; 735 } 736 737 /* 738 * Initialize archive, target and suffix modules in preparation for 739 * parsing the makefile(s) 740 */ 741 Arch_Init(); 742 Targ_Init(); 743 Suff_Init(); 744 Trace_Init(tracefile); 745 746 DEFAULT = NILGNODE; 747 (void)time(&now); 748 749 Trace_Log(MAKESTART, NULL); 750 751 /* 752 * Set up the .TARGETS variable to contain the list of targets to be 753 * created. If none specified, make the variable empty -- the parser 754 * will fill the thing in with the default or .MAIN target. 755 */ 756 if (!Lst_IsEmpty(create)) { 757 LstNode ln; 758 759 for (ln = Lst_First(create); ln != NILLNODE; 760 ln = Lst_Succ(ln)) { 761 char *name = (char *)Lst_Datum(ln); 762 763 Var_Append(".TARGETS", name, VAR_GLOBAL); 764 } 765 } else 766 Var_Set(".TARGETS", "", VAR_GLOBAL); 767 768 769 /* 770 * If no user-supplied system path was given (through the -m option) 771 * add the directories from the DEFSYSPATH (more than one may be given 772 * as dir1:...:dirn) to the system include path. 773 */ 774 if (Lst_IsEmpty(sysIncPath)) { 775 if (syspath == NULL || *syspath == '\0') 776 syspath = defsyspath; 777 else 778 syspath = strdup(syspath); 779 780 for (start = syspath; *start != '\0'; start = cp) { 781 for (cp = start; *cp != '\0' && *cp != ':'; cp++) 782 continue; 783 if (*cp == '\0') { 784 (void) Dir_AddDir(sysIncPath, start); 785 } else { 786 *cp++ = '\0'; 787 (void) Dir_AddDir(sysIncPath, start); 788 } 789 } 790 if (syspath != defsyspath) 791 free(syspath); 792 } 793 794 /* 795 * Read in the built-in rules first, followed by the specified 796 * makefile, if it was (makefile != (char *) NULL), or the default 797 * Makefile and makefile, in that order, if it wasn't. 798 */ 799 if (!noBuiltins) { 800 LstNode ln; 801 802 sysMkPath = Lst_Init (FALSE); 803 Dir_Expand (_PATH_DEFSYSMK, sysIncPath, sysMkPath); 804 if (Lst_IsEmpty(sysMkPath)) 805 Fatal("%s: no system rules (%s).", progname, 806 _PATH_DEFSYSMK); 807 ln = Lst_Find(sysMkPath, (ClientData)NULL, ReadMakefile); 808 if (ln != NILLNODE) 809 Fatal("%s: cannot open %s.", progname, 810 (char *)Lst_Datum(ln)); 811 } 812 813 if (!Lst_IsEmpty(makefiles)) { 814 LstNode ln; 815 816 ln = Lst_Find(makefiles, (ClientData)NULL, ReadMakefile); 817 if (ln != NILLNODE) 818 Fatal("%s: cannot open %s.", progname, 819 (char *)Lst_Datum(ln)); 820 } else if (!ReadMakefile("makefile", NULL)) 821 (void)ReadMakefile("Makefile", NULL); 822 823 (void)ReadMakefile(".depend", NULL); 824 825 Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL, &p1), VAR_GLOBAL); 826 if (p1) 827 free(p1); 828 829 if (!jobServer && !compatMake) 830 Job_ServerStart(maxJobs); 831 if (DEBUG(JOB)) 832 printf("job_pipe %d %d, maxjobs %d maxlocal %d compat %d\n", job_pipe[0], job_pipe[1], maxJobs, 833 maxLocal, compatMake); 834 835 ExportMAKEFLAGS(1); /* initial export */ 836 837 Check_Cwd_av(0, NULL, 0); /* initialize it */ 838 839 840 /* 841 * For compatibility, look at the directories in the VPATH variable 842 * and add them to the search path, if the variable is defined. The 843 * variable's value is in the same format as the PATH envariable, i.e. 844 * <directory>:<directory>:<directory>... 845 */ 846 if (Var_Exists("VPATH", VAR_CMD)) { 847 char *vpath, *path, *cp, savec; 848 /* 849 * GCC stores string constants in read-only memory, but 850 * Var_Subst will want to write this thing, so store it 851 * in an array 852 */ 853 static char VPATH[] = "${VPATH}"; 854 855 vpath = Var_Subst(NULL, VPATH, VAR_CMD, FALSE); 856 path = vpath; 857 do { 858 /* skip to end of directory */ 859 for (cp = path; *cp != ':' && *cp != '\0'; cp++) 860 continue; 861 /* Save terminator character so know when to stop */ 862 savec = *cp; 863 *cp = '\0'; 864 /* Add directory to search path */ 865 (void) Dir_AddDir(dirSearchPath, path); 866 *cp = savec; 867 path = cp + 1; 868 } while (savec == ':'); 869 (void)free((Address)vpath); 870 } 871 872 /* 873 * Now that all search paths have been read for suffixes et al, it's 874 * time to add the default search path to their lists... 875 */ 876 Suff_DoPaths(); 877 878 /* 879 * Propagate attributes through :: dependency lists. 880 */ 881 Targ_Propagate(); 882 883 /* print the initial graph, if the user requested it */ 884 if (DEBUG(GRAPH1)) 885 Targ_PrintGraph(1); 886 887 /* print the values of any variables requested by the user */ 888 if (printVars) { 889 LstNode ln; 890 891 for (ln = Lst_First(variables); ln != NILLNODE; 892 ln = Lst_Succ(ln)) { 893 char *value = Var_Value((char *)Lst_Datum(ln), 894 VAR_GLOBAL, &p1); 895 896 printf("%s\n", value ? value : ""); 897 if (p1) 898 free(p1); 899 } 900 } 901 902 /* 903 * Have now read the entire graph and need to make a list of targets 904 * to create. If none was given on the command line, we consult the 905 * parsing module to find the main target(s) to create. 906 */ 907 if (Lst_IsEmpty(create)) 908 targs = Parse_MainName(); 909 else 910 targs = Targ_FindList(create, TARG_CREATE); 911 912 if (!compatMake && !printVars) { 913 /* 914 * Initialize job module before traversing the graph, now that 915 * any .BEGIN and .END targets have been read. This is done 916 * only if the -q flag wasn't given (to prevent the .BEGIN from 917 * being executed should it exist). 918 */ 919 if (!queryFlag) { 920 if (maxLocal == -1) 921 maxLocal = maxJobs; 922 Job_Init(maxJobs, maxLocal); 923 jobsRunning = TRUE; 924 } 925 926 /* Traverse the graph, checking on all the targets */ 927 outOfDate = Make_Run(targs); 928 } else if (!printVars) { 929 /* 930 * Compat_Init will take care of creating all the targets as 931 * well as initializing the module. 932 */ 933 Compat_Run(targs); 934 } 935 936 #ifdef CLEANUP 937 Lst_Destroy(targs, NOFREE); 938 Lst_Destroy(variables, NOFREE); 939 Lst_Destroy(makefiles, NOFREE); 940 Lst_Destroy(create, (void (*) __P((ClientData))) free); 941 #endif 942 943 /* print the graph now it's been processed if the user requested it */ 944 if (DEBUG(GRAPH2)) 945 Targ_PrintGraph(2); 946 947 Trace_Log(MAKEEND, 0); 948 949 Suff_End(); 950 Targ_End(); 951 Arch_End(); 952 Var_End(); 953 Parse_End(); 954 Dir_End(); 955 Job_End(); 956 Trace_End(); 957 958 if (queryFlag && outOfDate) 959 return(1); 960 else 961 return(0); 962 } 963 964 /*- 965 * ReadMakefile -- 966 * Open and parse the given makefile. 967 * 968 * Results: 969 * TRUE if ok. FALSE if couldn't open file. 970 * 971 * Side Effects: 972 * lots 973 */ 974 static Boolean 975 ReadMakefile(p, q) 976 ClientData p, q; 977 { 978 char *fname = p; /* makefile to read */ 979 FILE *stream; 980 size_t len = MAXPATHLEN; 981 char *name, *path = emalloc(len); 982 int setMAKEFILE; 983 984 if (!strcmp(fname, "-")) { 985 Parse_File("(stdin)", stdin); 986 Var_Set("MAKEFILE", "", VAR_GLOBAL); 987 } else { 988 setMAKEFILE = strcmp(fname, ".depend"); 989 990 /* if we've chdir'd, rebuild the path name */ 991 if (curdir != objdir && *fname != '/') { 992 size_t plen = strlen(curdir) + strlen(fname) + 2; 993 if (len < plen) 994 path = erealloc(path, len = 2 * plen); 995 996 (void)snprintf(path, len, "%s/%s", curdir, fname); 997 if ((stream = fopen(path, "r")) != NULL) { 998 fname = path; 999 goto found; 1000 } 1001 } else if ((stream = fopen(fname, "r")) != NULL) 1002 goto found; 1003 /* look in -I and system include directories. */ 1004 name = Dir_FindFile(fname, parseIncPath); 1005 if (!name) 1006 name = Dir_FindFile(fname, sysIncPath); 1007 if (!name || !(stream = fopen(name, "r"))) { 1008 free(path); 1009 return(FALSE); 1010 } 1011 fname = name; 1012 /* 1013 * set the MAKEFILE variable desired by System V fans -- the 1014 * placement of the setting here means it gets set to the last 1015 * makefile specified, as it is set by SysV make. 1016 */ 1017 found: 1018 if (setMAKEFILE) 1019 Var_Set("MAKEFILE", fname, VAR_GLOBAL); 1020 Parse_File(fname, stream); 1021 (void)fclose(stream); 1022 } 1023 free(path); 1024 return(TRUE); 1025 } 1026 1027 1028 /* 1029 * If MAKEOBJDIRPREFIX is in use, make ends up not in .CURDIR 1030 * in situations that would not arrise with ./obj (links or not). 1031 * This tends to break things like: 1032 * 1033 * build: 1034 * ${MAKE} includes 1035 * 1036 * This function spots when ${.MAKE:T} or ${.MAKE} is a command (as 1037 * opposed to an argument) in a command line and if so returns 1038 * ${.CURDIR} so caller can chdir() so that the assumptions made by 1039 * the Makefile hold true. 1040 * 1041 * If ${.MAKE} does not contain any '/', then ${.MAKE:T} is skipped. 1042 * 1043 * The chdir() only happens in the child process, and does nothing if 1044 * MAKEOBJDIRPREFIX and MAKEOBJDIR are not in the environment so it 1045 * should not break anything. Also if NOCHECKMAKECHDIR is set we 1046 * do nothing - to ensure historic semantics can be retained. 1047 */ 1048 static int Check_Cwd_Off = 0; 1049 1050 static char * 1051 Check_Cwd_av(ac, av, copy) 1052 int ac; 1053 char **av; 1054 int copy; 1055 { 1056 static char *make[4]; 1057 static char *curdir = NULL; 1058 char *cp, **mp; 1059 int is_cmd, next_cmd; 1060 int i; 1061 int n; 1062 1063 if (Check_Cwd_Off) 1064 return NULL; 1065 1066 if (make[0] == NULL) { 1067 if (Var_Exists("NOCHECKMAKECHDIR", VAR_GLOBAL)) { 1068 Check_Cwd_Off = 1; 1069 return NULL; 1070 } 1071 1072 make[1] = Var_Value(".MAKE", VAR_GLOBAL, &cp); 1073 if ((make[0] = strrchr(make[1], '/')) == NULL) { 1074 make[0] = make[1]; 1075 make[1] = NULL; 1076 } else 1077 ++make[0]; 1078 make[2] = NULL; 1079 curdir = Var_Value(".CURDIR", VAR_GLOBAL, &cp); 1080 } 1081 if (ac == 0 || av == NULL) 1082 return NULL; /* initialization only */ 1083 1084 if (getenv("MAKEOBJDIR") == NULL && 1085 getenv("MAKEOBJDIRPREFIX") == NULL) 1086 return NULL; 1087 1088 1089 next_cmd = 1; 1090 for (i = 0; i < ac; ++i) { 1091 is_cmd = next_cmd; 1092 1093 n = strlen(av[i]); 1094 cp = &(av[i])[n - 1]; 1095 if (strspn(av[i], "|&;") == n) { 1096 next_cmd = 1; 1097 continue; 1098 } else if (*cp == ';' || *cp == '&' || *cp == '|' || *cp == ')') { 1099 next_cmd = 1; 1100 if (copy) { 1101 do { 1102 *cp-- = '\0'; 1103 } while (*cp == ';' || *cp == '&' || *cp == '|' || 1104 *cp == ')' || *cp == '}') ; 1105 } else { 1106 /* 1107 * XXX this should not happen. 1108 */ 1109 fprintf(stderr, "WARNING: raw arg ends in shell meta '%s'\n", 1110 av[i]); 1111 } 1112 } else 1113 next_cmd = 0; 1114 1115 cp = av[i]; 1116 if (*cp == ';' || *cp == '&' || *cp == '|') 1117 is_cmd = 1; 1118 1119 #ifdef check_cwd_debug 1120 fprintf(stderr, "av[%d] == %s '%s'", 1121 i, (is_cmd) ? "cmd" : "arg", av[i]); 1122 #endif 1123 if (is_cmd != 0) { 1124 if (*cp == '(' || *cp == '{' || 1125 *cp == ';' || *cp == '&' || *cp == '|') { 1126 do { 1127 ++cp; 1128 } while (*cp == '(' || *cp == '{' || 1129 *cp == ';' || *cp == '&' || *cp == '|'); 1130 if (*cp == '\0') { 1131 next_cmd = 1; 1132 continue; 1133 } 1134 } 1135 if (strcmp(cp, "cd") == 0 || strcmp(cp, "chdir") == 0) { 1136 #ifdef check_cwd_debug 1137 fprintf(stderr, " == cd, done.\n"); 1138 #endif 1139 return NULL; 1140 } 1141 for (mp = make; *mp != NULL; ++mp) { 1142 n = strlen(*mp); 1143 if (strcmp(cp, *mp) == 0) { 1144 #ifdef check_cwd_debug 1145 fprintf(stderr, " %s == '%s', chdir(%s)\n", 1146 cp, *mp, curdir); 1147 #endif 1148 return curdir; 1149 } 1150 } 1151 } 1152 #ifdef check_cwd_debug 1153 fprintf(stderr, "\n"); 1154 #endif 1155 } 1156 return NULL; 1157 } 1158 1159 char * 1160 Check_Cwd_Cmd(cmd) 1161 char *cmd; 1162 { 1163 char *cp, *bp, **av; 1164 int ac; 1165 1166 if (Check_Cwd_Off) 1167 return NULL; 1168 1169 if (cmd) { 1170 av = brk_string(cmd, &ac, TRUE, &bp); 1171 #ifdef check_cwd_debug 1172 fprintf(stderr, "splitting: '%s' -> %d words\n", 1173 cmd, ac); 1174 #endif 1175 } else { 1176 ac = 0; 1177 av = NULL; 1178 bp = NULL; 1179 } 1180 cp = Check_Cwd_av(ac, av, 1); 1181 if (bp) { 1182 free(av); 1183 free(bp); 1184 } 1185 return cp; 1186 } 1187 1188 void 1189 Check_Cwd(argv) 1190 char **argv; 1191 { 1192 char *cp; 1193 int ac; 1194 1195 if (Check_Cwd_Off) 1196 return; 1197 1198 for (ac = 0; argv[ac] != NULL; ++ac) 1199 /* NOTHING */; 1200 if (ac == 3 && *argv[1] == '-') { 1201 cp = Check_Cwd_Cmd(argv[2]); 1202 } else { 1203 cp = Check_Cwd_av(ac, argv, 0); 1204 } 1205 if (cp) { 1206 chdir(cp); 1207 } 1208 } 1209 1210 /*- 1211 * Cmd_Exec -- 1212 * Execute the command in cmd, and return the output of that command 1213 * in a string. 1214 * 1215 * Results: 1216 * A string containing the output of the command, or the empty string 1217 * If err is not NULL, it contains the reason for the command failure 1218 * 1219 * Side Effects: 1220 * The string must be freed by the caller. 1221 */ 1222 char * 1223 Cmd_Exec(cmd, err) 1224 char *cmd; 1225 char **err; 1226 { 1227 char *args[4]; /* Args for invoking the shell */ 1228 int fds[2]; /* Pipe streams */ 1229 int cpid; /* Child PID */ 1230 int pid; /* PID from wait() */ 1231 char *res; /* result */ 1232 int status; /* command exit status */ 1233 Buffer buf; /* buffer to store the result */ 1234 char *cp; 1235 int cc; 1236 1237 1238 *err = NULL; 1239 1240 /* 1241 * Set up arguments for shell 1242 */ 1243 args[0] = "sh"; 1244 args[1] = "-c"; 1245 args[2] = cmd; 1246 args[3] = NULL; 1247 1248 /* 1249 * Open a pipe for fetching its output 1250 */ 1251 if (pipe(fds) == -1) { 1252 *err = "Couldn't create pipe for \"%s\""; 1253 goto bad; 1254 } 1255 1256 /* 1257 * Fork 1258 */ 1259 switch (cpid = vfork()) { 1260 case 0: 1261 /* 1262 * Close input side of pipe 1263 */ 1264 (void) close(fds[0]); 1265 1266 /* 1267 * Duplicate the output stream to the shell's output, then 1268 * shut the extra thing down. Note we don't fetch the error 1269 * stream...why not? Why? 1270 */ 1271 (void) dup2(fds[1], 1); 1272 (void) close(fds[1]); 1273 1274 (void) execv("/bin/sh", args); 1275 _exit(1); 1276 /*NOTREACHED*/ 1277 1278 case -1: 1279 *err = "Couldn't exec \"%s\""; 1280 goto bad; 1281 1282 default: 1283 /* 1284 * No need for the writing half 1285 */ 1286 (void) close(fds[1]); 1287 1288 buf = Buf_Init (MAKE_BSIZE); 1289 1290 do { 1291 char result[BUFSIZ]; 1292 cc = read(fds[0], result, sizeof(result)); 1293 if (cc > 0) 1294 Buf_AddBytes(buf, cc, (Byte *) result); 1295 } 1296 while (cc > 0 || (cc == -1 && errno == EINTR)); 1297 1298 /* 1299 * Close the input side of the pipe. 1300 */ 1301 (void) close(fds[0]); 1302 1303 /* 1304 * Wait for the process to exit. 1305 */ 1306 while(((pid = wait(&status)) != cpid) && (pid >= 0)) 1307 continue; 1308 1309 res = (char *)Buf_GetAll (buf, &cc); 1310 Buf_Destroy (buf, FALSE); 1311 1312 if (cc == 0) 1313 *err = "Couldn't read shell's output for \"%s\""; 1314 1315 if (status) 1316 *err = "\"%s\" returned non-zero status"; 1317 1318 /* 1319 * Null-terminate the result, convert newlines to spaces and 1320 * install it in the variable. 1321 */ 1322 res[cc] = '\0'; 1323 cp = &res[cc]; 1324 1325 if (cc > 0 && *--cp == '\n') { 1326 /* 1327 * A final newline is just stripped 1328 */ 1329 *cp-- = '\0'; 1330 } 1331 while (cp >= res) { 1332 if (*cp == '\n') { 1333 *cp = ' '; 1334 } 1335 cp--; 1336 } 1337 break; 1338 } 1339 return res; 1340 bad: 1341 res = emalloc(1); 1342 *res = '\0'; 1343 return res; 1344 } 1345 1346 /*- 1347 * Error -- 1348 * Print an error message given its format. 1349 * 1350 * Results: 1351 * None. 1352 * 1353 * Side Effects: 1354 * The message is printed. 1355 */ 1356 /* VARARGS */ 1357 void 1358 #ifdef __STDC__ 1359 Error(char *fmt, ...) 1360 #else 1361 Error(va_alist) 1362 va_dcl 1363 #endif 1364 { 1365 va_list ap; 1366 #ifdef __STDC__ 1367 va_start(ap, fmt); 1368 #else 1369 char *fmt; 1370 1371 va_start(ap); 1372 fmt = va_arg(ap, char *); 1373 #endif 1374 fprintf(stderr, "%s: ", progname); 1375 (void)vfprintf(stderr, fmt, ap); 1376 va_end(ap); 1377 (void)fprintf(stderr, "\n"); 1378 (void)fflush(stderr); 1379 } 1380 1381 /*- 1382 * Fatal -- 1383 * Produce a Fatal error message. If jobs are running, waits for them 1384 * to finish. 1385 * 1386 * Results: 1387 * None 1388 * 1389 * Side Effects: 1390 * The program exits 1391 */ 1392 /* VARARGS */ 1393 void 1394 #ifdef __STDC__ 1395 Fatal(char *fmt, ...) 1396 #else 1397 Fatal(va_alist) 1398 va_dcl 1399 #endif 1400 { 1401 va_list ap; 1402 #ifdef __STDC__ 1403 va_start(ap, fmt); 1404 #else 1405 char *fmt; 1406 1407 va_start(ap); 1408 fmt = va_arg(ap, char *); 1409 #endif 1410 if (jobsRunning) 1411 Job_Wait(); 1412 Job_TokenFlush(); 1413 1414 (void)vfprintf(stderr, fmt, ap); 1415 va_end(ap); 1416 (void)fprintf(stderr, "\n"); 1417 (void)fflush(stderr); 1418 1419 PrintOnError(NULL); 1420 1421 if (DEBUG(GRAPH2)) 1422 Targ_PrintGraph(2); 1423 Trace_Log(MAKEERROR, 0); 1424 exit(2); /* Not 1 so -q can distinguish error */ 1425 } 1426 1427 /* 1428 * Punt -- 1429 * Major exception once jobs are being created. Kills all jobs, prints 1430 * a message and exits. 1431 * 1432 * Results: 1433 * None 1434 * 1435 * Side Effects: 1436 * All children are killed indiscriminately and the program Lib_Exits 1437 */ 1438 /* VARARGS */ 1439 void 1440 #ifdef __STDC__ 1441 Punt(char *fmt, ...) 1442 #else 1443 Punt(va_alist) 1444 va_dcl 1445 #endif 1446 { 1447 va_list ap; 1448 #ifdef __STDC__ 1449 va_start(ap, fmt); 1450 #else 1451 char *fmt; 1452 1453 va_start(ap); 1454 fmt = va_arg(ap, char *); 1455 #endif 1456 1457 (void)fprintf(stderr, "%s: ", progname); 1458 (void)vfprintf(stderr, fmt, ap); 1459 va_end(ap); 1460 (void)fprintf(stderr, "\n"); 1461 (void)fflush(stderr); 1462 1463 PrintOnError(NULL); 1464 1465 DieHorribly(); 1466 } 1467 1468 /*- 1469 * DieHorribly -- 1470 * Exit without giving a message. 1471 * 1472 * Results: 1473 * None 1474 * 1475 * Side Effects: 1476 * A big one... 1477 */ 1478 void 1479 DieHorribly() 1480 { 1481 if (jobsRunning) 1482 Job_AbortAll(); 1483 if (DEBUG(GRAPH2)) 1484 Targ_PrintGraph(2); 1485 Trace_Log(MAKEERROR, 0); 1486 exit(2); /* Not 1, so -q can distinguish error */ 1487 } 1488 1489 /* 1490 * Finish -- 1491 * Called when aborting due to errors in child shell to signal 1492 * abnormal exit. 1493 * 1494 * Results: 1495 * None 1496 * 1497 * Side Effects: 1498 * The program exits 1499 */ 1500 void 1501 Finish(errors) 1502 int errors; /* number of errors encountered in Make_Make */ 1503 { 1504 Fatal("%d error%s", errors, errors == 1 ? "" : "s"); 1505 } 1506 1507 /* 1508 * emalloc -- 1509 * malloc, but die on error. 1510 */ 1511 void * 1512 emalloc(len) 1513 size_t len; 1514 { 1515 void *p; 1516 1517 if ((p = malloc(len)) == NULL) 1518 enomem(); 1519 return(p); 1520 } 1521 1522 /* 1523 * estrdup -- 1524 * strdup, but die on error. 1525 */ 1526 char * 1527 estrdup(str) 1528 const char *str; 1529 { 1530 char *p; 1531 1532 if ((p = strdup(str)) == NULL) 1533 enomem(); 1534 return(p); 1535 } 1536 1537 /* 1538 * erealloc -- 1539 * realloc, but die on error. 1540 */ 1541 void * 1542 erealloc(ptr, size) 1543 void *ptr; 1544 size_t size; 1545 { 1546 if ((ptr = realloc(ptr, size)) == NULL) 1547 enomem(); 1548 return(ptr); 1549 } 1550 1551 /* 1552 * enomem -- 1553 * die when out of memory. 1554 */ 1555 void 1556 enomem() 1557 { 1558 (void)fprintf(stderr, "%s: %s.\n", progname, strerror(errno)); 1559 exit(2); 1560 } 1561 1562 /* 1563 * enunlink -- 1564 * Remove a file carefully, avoiding directories. 1565 */ 1566 int 1567 eunlink(file) 1568 const char *file; 1569 { 1570 struct stat st; 1571 1572 if (lstat(file, &st) == -1) 1573 return -1; 1574 1575 if (S_ISDIR(st.st_mode)) { 1576 errno = EISDIR; 1577 return -1; 1578 } 1579 return unlink(file); 1580 } 1581 1582 /* 1583 * execError -- 1584 * Print why exec failed, avoiding stdio. 1585 */ 1586 void 1587 execError(av) 1588 const char *av; 1589 { 1590 #ifdef USE_IOVEC 1591 int i = 0; 1592 struct iovec iov[6]; 1593 #define IOADD(s) \ 1594 (void)(iov[i].iov_base = (s), \ 1595 iov[i].iov_len = strlen(iov[i].iov_base), \ 1596 i++) 1597 #else 1598 #define IOADD (void)write(2, s, strlen(s)) 1599 #endif 1600 1601 IOADD(progname); 1602 IOADD(": Exec of `"); 1603 IOADD((char *)av); 1604 IOADD("' failed ("); 1605 IOADD(strerror(errno)); 1606 IOADD(")\n"); 1607 1608 #ifdef USE_IOVEC 1609 (void)writev(2, iov, 6); 1610 #endif 1611 } 1612 1613 /* 1614 * usage -- 1615 * exit with usage message 1616 */ 1617 static void 1618 usage() 1619 { 1620 (void)fprintf(stderr, 1621 "Usage: %s [-Beiknqrst] [-D variable] [-d flags] [-f makefile ]\n\ 1622 [-I directory] [-j max_jobs] [-m directory] [-V variable]\n\ 1623 [variable=value] [target ...]\n", progname); 1624 exit(2); 1625 } 1626 1627 1628 int 1629 PrintAddr(a, b) 1630 ClientData a; 1631 ClientData b; 1632 { 1633 printf("%lx ", (unsigned long) a); 1634 return b ? 0 : 0; 1635 } 1636 1637 1638 1639 void 1640 PrintOnError(s) 1641 char *s; 1642 { 1643 char tmp[64]; 1644 1645 if (s) 1646 printf("%s", s); 1647 1648 printf("\n%s: stopped in %s\n", progname, curdir); 1649 strncpy(tmp, "${MAKE_PRINT_VAR_ON_ERROR:@v@$v='${$v}'\n@}", 1650 sizeof(tmp) - 1); 1651 s = Var_Subst(NULL, tmp, VAR_GLOBAL, 0); 1652 if (s && *s) 1653 printf("%s", s); 1654 } 1655 1656 void 1657 ExportMAKEFLAGS(first) 1658 int first; 1659 { 1660 static int once = 1; 1661 char tmp[64]; 1662 char *s; 1663 1664 if (once != first) 1665 return; 1666 once = 0; 1667 1668 /* supress duplicates in MAKEOVERRIDES */ 1669 strncpy(tmp, "${.MAKEFLAGS} ${.MAKEOVERRIDES:O:u}", sizeof(tmp)); 1670 s = Var_Subst(NULL, tmp, VAR_GLOBAL, 0); 1671 if (s && *s) { 1672 #ifdef POSIX 1673 setenv("MAKEFLAGS", s, 1); 1674 #else 1675 setenv("MAKE", s, 1); 1676 #endif 1677 } 1678 } 1679
Indexes created Mon Sep 22 13:09:51 GMT 2025