main.c revision 1.73
1 /* $NetBSD: main.c,v 1.73 2001/10/31 01:15:57 tv 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 1.73 2001/10/31 01:15:57 tv 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 1.73 2001/10/31 01:15:57 tv 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 occurred, 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, 0); 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 $PWD) 563 * or via subdir.mk in which case its likely a shell which does 564 * not provide it. 565 * So, to stop it breaking this case only, we ignore PWD if 566 * MAKEOBJDIRPREFIX is set. 567 */ 568 if ((pwd = getenv("PWD")) != NULL && 569 getenv("MAKEOBJDIRPREFIX") == NULL) { 570 if (stat(pwd, &sb) == 0 && sa.st_ino == sb.st_ino && 571 sa.st_dev == sb.st_dev) 572 (void) strcpy(curdir, pwd); 573 } 574 575 /* 576 * Get the name of this type of MACHINE from utsname 577 * so we can share an executable for similar machines. 578 * (i.e. m68k: amiga hp300, mac68k, sun3, ...) 579 * 580 * Note that both MACHINE and MACHINE_ARCH are decided at 581 * run-time. 582 */ 583 if (!machine) { 584 #ifndef MAKE_BOOTSTRAP 585 struct utsname utsname; 586 587 if (uname(&utsname) == -1) { 588 (void)fprintf(stderr, "%s: uname failed (%s).\n", progname, 589 strerror(errno)); 590 exit(2); 591 } 592 machine = utsname.machine; 593 #else 594 machine = MACHINE; 595 #endif 596 } 597 598 if (!machine_arch) { 599 #ifndef MACHINE_ARCH 600 #ifdef __ARCHITECTURE__ 601 machine_arch = __ARCHITECTURE__; 602 #else 603 machine_arch = "unknown"; /* XXX: no uname -p yet */ 604 #endif 605 #else 606 machine_arch = MACHINE_ARCH; 607 #endif 608 } 609 610 /* 611 * Just in case MAKEOBJDIR wants us to do something tricky. 612 */ 613 Var_Init(); /* Initialize the lists of variables for 614 * parsing arguments */ 615 Var_Set(".CURDIR", curdir, VAR_GLOBAL, 0); 616 Var_Set("MACHINE", machine, VAR_GLOBAL, 0); 617 Var_Set("MACHINE_ARCH", machine_arch, VAR_GLOBAL, 0); 618 #ifdef MAKE_VERSION 619 Var_Set("MAKE_VERSION", MAKE_VERSION, VAR_GLOBAL, 0); 620 #endif 621 Var_Set(".newline", "\n", VAR_GLOBAL, 0); /* handy for :@ loops */ 622 623 /* 624 * If the MAKEOBJDIR (or by default, the _PATH_OBJDIR) directory 625 * exists, change into it and build there. (If a .${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, 0); 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, 0); 711 Var_Set(".MAKE", argv[0], VAR_GLOBAL, 0); 712 Var_Set(MAKEFLAGS, "", VAR_GLOBAL, 0); 713 Var_Set(MAKEOVERRIDES, "", VAR_GLOBAL, 0); 714 Var_Set("MFLAGS", "", VAR_GLOBAL, 0); 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, 0); 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 (syspath == NULL || *syspath == '\0') 775 syspath = defsyspath; 776 else 777 syspath = strdup(syspath); 778 779 for (start = syspath; *start != '\0'; start = cp) { 780 for (cp = start; *cp != '\0' && *cp != ':'; cp++) 781 continue; 782 if (*cp == '\0') { 783 (void) Dir_AddDir(defIncPath, start); 784 } else { 785 *cp++ = '\0'; 786 (void) Dir_AddDir(defIncPath, start); 787 } 788 } 789 if (syspath != defsyspath) 790 free(syspath); 791 792 /* 793 * Read in the built-in rules first, followed by the specified 794 * makefile, if it was (makefile != (char *) NULL), or the default 795 * Makefile and makefile, in that order, if it wasn't. 796 */ 797 if (!noBuiltins) { 798 LstNode ln; 799 800 sysMkPath = Lst_Init (FALSE); 801 Dir_Expand(_PATH_DEFSYSMK, 802 Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath, 803 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 Main_ExportMAKEFLAGS(TRUE); /* 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, 0); 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, 1007 Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath); 1008 if (!name || !(stream = fopen(name, "r"))) { 1009 free(path); 1010 return(FALSE); 1011 } 1012 fname = name; 1013 /* 1014 * set the MAKEFILE variable desired by System V fans -- the 1015 * placement of the setting here means it gets set to the last 1016 * makefile specified, as it is set by SysV make. 1017 */ 1018 found: 1019 if (setMAKEFILE) 1020 Var_Set("MAKEFILE", fname, VAR_GLOBAL, 0); 1021 Parse_File(fname, stream); 1022 (void)fclose(stream); 1023 } 1024 free(path); 1025 return(TRUE); 1026 } 1027 1028 1029 /* 1030 * If MAKEOBJDIRPREFIX is in use, make ends up not in .CURDIR 1031 * in situations that would not arrise with ./obj (links or not). 1032 * This tends to break things like: 1033 * 1034 * build: 1035 * ${MAKE} includes 1036 * 1037 * This function spots when ${.MAKE:T} or ${.MAKE} is a command (as 1038 * opposed to an argument) in a command line and if so returns 1039 * ${.CURDIR} so caller can chdir() so that the assumptions made by 1040 * the Makefile hold true. 1041 * 1042 * If ${.MAKE} does not contain any '/', then ${.MAKE:T} is skipped. 1043 * 1044 * The chdir() only happens in the child process, and does nothing if 1045 * MAKEOBJDIRPREFIX and MAKEOBJDIR are not in the environment so it 1046 * should not break anything. Also if NOCHECKMAKECHDIR is set we 1047 * do nothing - to ensure historic semantics can be retained. 1048 */ 1049 static int Check_Cwd_Off = 0; 1050 1051 static char * 1052 Check_Cwd_av(ac, av, copy) 1053 int ac; 1054 char **av; 1055 int copy; 1056 { 1057 static char *make[4]; 1058 static char *curdir = NULL; 1059 char *cp, **mp; 1060 int is_cmd, next_cmd; 1061 int i; 1062 int n; 1063 1064 if (Check_Cwd_Off) 1065 return NULL; 1066 1067 if (make[0] == NULL) { 1068 if (Var_Exists("NOCHECKMAKECHDIR", VAR_GLOBAL)) { 1069 Check_Cwd_Off = 1; 1070 return NULL; 1071 } 1072 1073 make[1] = Var_Value(".MAKE", VAR_GLOBAL, &cp); 1074 if ((make[0] = strrchr(make[1], '/')) == NULL) { 1075 make[0] = make[1]; 1076 make[1] = NULL; 1077 } else 1078 ++make[0]; 1079 make[2] = NULL; 1080 curdir = Var_Value(".CURDIR", VAR_GLOBAL, &cp); 1081 } 1082 if (ac == 0 || av == NULL) 1083 return NULL; /* initialization only */ 1084 1085 if (getenv("MAKEOBJDIR") == NULL && 1086 getenv("MAKEOBJDIRPREFIX") == NULL) 1087 return NULL; 1088 1089 1090 next_cmd = 1; 1091 for (i = 0; i < ac; ++i) { 1092 is_cmd = next_cmd; 1093 1094 n = strlen(av[i]); 1095 cp = &(av[i])[n - 1]; 1096 if (strspn(av[i], "|&;") == n) { 1097 next_cmd = 1; 1098 continue; 1099 } else if (*cp == ';' || *cp == '&' || *cp == '|' || *cp == ')') { 1100 next_cmd = 1; 1101 if (copy) { 1102 do { 1103 *cp-- = '\0'; 1104 } while (*cp == ';' || *cp == '&' || *cp == '|' || 1105 *cp == ')' || *cp == '}') ; 1106 } else { 1107 /* 1108 * XXX this should not happen. 1109 */ 1110 fprintf(stderr, "WARNING: raw arg ends in shell meta '%s'\n", 1111 av[i]); 1112 } 1113 } else 1114 next_cmd = 0; 1115 1116 cp = av[i]; 1117 if (*cp == ';' || *cp == '&' || *cp == '|') 1118 is_cmd = 1; 1119 1120 #ifdef check_cwd_debug 1121 fprintf(stderr, "av[%d] == %s '%s'", 1122 i, (is_cmd) ? "cmd" : "arg", av[i]); 1123 #endif 1124 if (is_cmd != 0) { 1125 if (*cp == '(' || *cp == '{' || 1126 *cp == ';' || *cp == '&' || *cp == '|') { 1127 do { 1128 ++cp; 1129 } while (*cp == '(' || *cp == '{' || 1130 *cp == ';' || *cp == '&' || *cp == '|'); 1131 if (*cp == '\0') { 1132 next_cmd = 1; 1133 continue; 1134 } 1135 } 1136 if (strcmp(cp, "cd") == 0 || strcmp(cp, "chdir") == 0) { 1137 #ifdef check_cwd_debug 1138 fprintf(stderr, " == cd, done.\n"); 1139 #endif 1140 return NULL; 1141 } 1142 for (mp = make; *mp != NULL; ++mp) { 1143 n = strlen(*mp); 1144 if (strcmp(cp, *mp) == 0) { 1145 #ifdef check_cwd_debug 1146 fprintf(stderr, " %s == '%s', chdir(%s)\n", 1147 cp, *mp, curdir); 1148 #endif 1149 return curdir; 1150 } 1151 } 1152 } 1153 #ifdef check_cwd_debug 1154 fprintf(stderr, "\n"); 1155 #endif 1156 } 1157 return NULL; 1158 } 1159 1160 char * 1161 Check_Cwd_Cmd(cmd) 1162 char *cmd; 1163 { 1164 char *cp, *bp, **av; 1165 int ac; 1166 1167 if (Check_Cwd_Off) 1168 return NULL; 1169 1170 if (cmd) { 1171 av = brk_string(cmd, &ac, TRUE, &bp); 1172 #ifdef check_cwd_debug 1173 fprintf(stderr, "splitting: '%s' -> %d words\n", 1174 cmd, ac); 1175 #endif 1176 } else { 1177 ac = 0; 1178 av = NULL; 1179 bp = NULL; 1180 } 1181 cp = Check_Cwd_av(ac, av, 1); 1182 if (bp) { 1183 free(av); 1184 free(bp); 1185 } 1186 return cp; 1187 } 1188 1189 void 1190 Check_Cwd(argv) 1191 char **argv; 1192 { 1193 char *cp; 1194 int ac; 1195 1196 if (Check_Cwd_Off) 1197 return; 1198 1199 for (ac = 0; argv[ac] != NULL; ++ac) 1200 /* NOTHING */; 1201 if (ac == 3 && *argv[1] == '-') { 1202 cp = Check_Cwd_Cmd(argv[2]); 1203 } else { 1204 cp = Check_Cwd_av(ac, argv, 0); 1205 } 1206 if (cp) { 1207 chdir(cp); 1208 } 1209 } 1210 1211 /*- 1212 * Cmd_Exec -- 1213 * Execute the command in cmd, and return the output of that command 1214 * in a string. 1215 * 1216 * Results: 1217 * A string containing the output of the command, or the empty string 1218 * If err is not NULL, it contains the reason for the command failure 1219 * 1220 * Side Effects: 1221 * The string must be freed by the caller. 1222 */ 1223 char * 1224 Cmd_Exec(cmd, err) 1225 char *cmd; 1226 char **err; 1227 { 1228 char *args[4]; /* Args for invoking the shell */ 1229 int fds[2]; /* Pipe streams */ 1230 int cpid; /* Child PID */ 1231 int pid; /* PID from wait() */ 1232 char *res; /* result */ 1233 int status; /* command exit status */ 1234 Buffer buf; /* buffer to store the result */ 1235 char *cp; 1236 int cc; 1237 1238 1239 *err = NULL; 1240 1241 /* 1242 * Set up arguments for shell 1243 */ 1244 args[0] = "sh"; 1245 args[1] = "-c"; 1246 args[2] = cmd; 1247 args[3] = NULL; 1248 1249 /* 1250 * Open a pipe for fetching its output 1251 */ 1252 if (pipe(fds) == -1) { 1253 *err = "Couldn't create pipe for \"%s\""; 1254 goto bad; 1255 } 1256 1257 /* 1258 * Fork 1259 */ 1260 switch (cpid = vfork()) { 1261 case 0: 1262 /* 1263 * Close input side of pipe 1264 */ 1265 (void) close(fds[0]); 1266 1267 /* 1268 * Duplicate the output stream to the shell's output, then 1269 * shut the extra thing down. Note we don't fetch the error 1270 * stream...why not? Why? 1271 */ 1272 (void) dup2(fds[1], 1); 1273 (void) close(fds[1]); 1274 1275 (void) execv("/bin/sh", args); 1276 _exit(1); 1277 /*NOTREACHED*/ 1278 1279 case -1: 1280 *err = "Couldn't exec \"%s\""; 1281 goto bad; 1282 1283 default: 1284 /* 1285 * No need for the writing half 1286 */ 1287 (void) close(fds[1]); 1288 1289 buf = Buf_Init (MAKE_BSIZE); 1290 1291 do { 1292 char result[BUFSIZ]; 1293 cc = read(fds[0], result, sizeof(result)); 1294 if (cc > 0) 1295 Buf_AddBytes(buf, cc, (Byte *) result); 1296 } 1297 while (cc > 0 || (cc == -1 && errno == EINTR)); 1298 1299 /* 1300 * Close the input side of the pipe. 1301 */ 1302 (void) close(fds[0]); 1303 1304 /* 1305 * Wait for the process to exit. 1306 */ 1307 while(((pid = wait(&status)) != cpid) && (pid >= 0)) 1308 continue; 1309 1310 res = (char *)Buf_GetAll (buf, &cc); 1311 Buf_Destroy (buf, FALSE); 1312 1313 if (cc == 0) 1314 *err = "Couldn't read shell's output for \"%s\""; 1315 1316 if (status) 1317 *err = "\"%s\" returned non-zero status"; 1318 1319 /* 1320 * Null-terminate the result, convert newlines to spaces and 1321 * install it in the variable. 1322 */ 1323 res[cc] = '\0'; 1324 cp = &res[cc]; 1325 1326 if (cc > 0 && *--cp == '\n') { 1327 /* 1328 * A final newline is just stripped 1329 */ 1330 *cp-- = '\0'; 1331 } 1332 while (cp >= res) { 1333 if (*cp == '\n') { 1334 *cp = ' '; 1335 } 1336 cp--; 1337 } 1338 break; 1339 } 1340 return res; 1341 bad: 1342 res = emalloc(1); 1343 *res = '\0'; 1344 return res; 1345 } 1346 1347 /*- 1348 * Error -- 1349 * Print an error message given its format. 1350 * 1351 * Results: 1352 * None. 1353 * 1354 * Side Effects: 1355 * The message is printed. 1356 */ 1357 /* VARARGS */ 1358 void 1359 #ifdef __STDC__ 1360 Error(char *fmt, ...) 1361 #else 1362 Error(va_alist) 1363 va_dcl 1364 #endif 1365 { 1366 va_list ap; 1367 #ifdef __STDC__ 1368 va_start(ap, fmt); 1369 #else 1370 char *fmt; 1371 1372 va_start(ap); 1373 fmt = va_arg(ap, char *); 1374 #endif 1375 fprintf(stderr, "%s: ", progname); 1376 (void)vfprintf(stderr, fmt, ap); 1377 va_end(ap); 1378 (void)fprintf(stderr, "\n"); 1379 (void)fflush(stderr); 1380 } 1381 1382 /*- 1383 * Fatal -- 1384 * Produce a Fatal error message. If jobs are running, waits for them 1385 * to finish. 1386 * 1387 * Results: 1388 * None 1389 * 1390 * Side Effects: 1391 * The program exits 1392 */ 1393 /* VARARGS */ 1394 void 1395 #ifdef __STDC__ 1396 Fatal(char *fmt, ...) 1397 #else 1398 Fatal(va_alist) 1399 va_dcl 1400 #endif 1401 { 1402 va_list ap; 1403 #ifdef __STDC__ 1404 va_start(ap, fmt); 1405 #else 1406 char *fmt; 1407 1408 va_start(ap); 1409 fmt = va_arg(ap, char *); 1410 #endif 1411 if (jobsRunning) 1412 Job_Wait(); 1413 Job_TokenFlush(); 1414 1415 (void)vfprintf(stderr, fmt, ap); 1416 va_end(ap); 1417 (void)fprintf(stderr, "\n"); 1418 (void)fflush(stderr); 1419 1420 PrintOnError(NULL); 1421 1422 if (DEBUG(GRAPH2)) 1423 Targ_PrintGraph(2); 1424 Trace_Log(MAKEERROR, 0); 1425 exit(2); /* Not 1 so -q can distinguish error */ 1426 } 1427 1428 /* 1429 * Punt -- 1430 * Major exception once jobs are being created. Kills all jobs, prints 1431 * a message and exits. 1432 * 1433 * Results: 1434 * None 1435 * 1436 * Side Effects: 1437 * All children are killed indiscriminately and the program Lib_Exits 1438 */ 1439 /* VARARGS */ 1440 void 1441 #ifdef __STDC__ 1442 Punt(char *fmt, ...) 1443 #else 1444 Punt(va_alist) 1445 va_dcl 1446 #endif 1447 { 1448 va_list ap; 1449 #ifdef __STDC__ 1450 va_start(ap, fmt); 1451 #else 1452 char *fmt; 1453 1454 va_start(ap); 1455 fmt = va_arg(ap, char *); 1456 #endif 1457 1458 (void)fprintf(stderr, "%s: ", progname); 1459 (void)vfprintf(stderr, fmt, ap); 1460 va_end(ap); 1461 (void)fprintf(stderr, "\n"); 1462 (void)fflush(stderr); 1463 1464 PrintOnError(NULL); 1465 1466 DieHorribly(); 1467 } 1468 1469 /*- 1470 * DieHorribly -- 1471 * Exit without giving a message. 1472 * 1473 * Results: 1474 * None 1475 * 1476 * Side Effects: 1477 * A big one... 1478 */ 1479 void 1480 DieHorribly() 1481 { 1482 if (jobsRunning) 1483 Job_AbortAll(); 1484 if (DEBUG(GRAPH2)) 1485 Targ_PrintGraph(2); 1486 Trace_Log(MAKEERROR, 0); 1487 exit(2); /* Not 1, so -q can distinguish error */ 1488 } 1489 1490 /* 1491 * Finish -- 1492 * Called when aborting due to errors in child shell to signal 1493 * abnormal exit. 1494 * 1495 * Results: 1496 * None 1497 * 1498 * Side Effects: 1499 * The program exits 1500 */ 1501 void 1502 Finish(errors) 1503 int errors; /* number of errors encountered in Make_Make */ 1504 { 1505 Fatal("%d error%s", errors, errors == 1 ? "" : "s"); 1506 } 1507 1508 /* 1509 * emalloc -- 1510 * malloc, but die on error. 1511 */ 1512 void * 1513 emalloc(len) 1514 size_t len; 1515 { 1516 void *p; 1517 1518 if ((p = malloc(len)) == NULL) 1519 enomem(); 1520 return(p); 1521 } 1522 1523 /* 1524 * estrdup -- 1525 * strdup, but die on error. 1526 */ 1527 char * 1528 estrdup(str) 1529 const char *str; 1530 { 1531 char *p; 1532 1533 if ((p = strdup(str)) == NULL) 1534 enomem(); 1535 return(p); 1536 } 1537 1538 /* 1539 * erealloc -- 1540 * realloc, but die on error. 1541 */ 1542 void * 1543 erealloc(ptr, size) 1544 void *ptr; 1545 size_t size; 1546 { 1547 if ((ptr = realloc(ptr, size)) == NULL) 1548 enomem(); 1549 return(ptr); 1550 } 1551 1552 /* 1553 * enomem -- 1554 * die when out of memory. 1555 */ 1556 void 1557 enomem() 1558 { 1559 (void)fprintf(stderr, "%s: %s.\n", progname, strerror(errno)); 1560 exit(2); 1561 } 1562 1563 /* 1564 * enunlink -- 1565 * Remove a file carefully, avoiding directories. 1566 */ 1567 int 1568 eunlink(file) 1569 const char *file; 1570 { 1571 struct stat st; 1572 1573 if (lstat(file, &st) == -1) 1574 return -1; 1575 1576 if (S_ISDIR(st.st_mode)) { 1577 errno = EISDIR; 1578 return -1; 1579 } 1580 return unlink(file); 1581 } 1582 1583 /* 1584 * execError -- 1585 * Print why exec failed, avoiding stdio. 1586 */ 1587 void 1588 execError(av) 1589 const char *av; 1590 { 1591 #ifdef USE_IOVEC 1592 int i = 0; 1593 struct iovec iov[6]; 1594 #define IOADD(s) \ 1595 (void)(iov[i].iov_base = (s), \ 1596 iov[i].iov_len = strlen(iov[i].iov_base), \ 1597 i++) 1598 #else 1599 #define IOADD (void)write(2, s, strlen(s)) 1600 #endif 1601 1602 IOADD(progname); 1603 IOADD(": Exec of `"); 1604 IOADD((char *)av); 1605 IOADD("' failed ("); 1606 IOADD(strerror(errno)); 1607 IOADD(")\n"); 1608 1609 #ifdef USE_IOVEC 1610 (void)writev(2, iov, 6); 1611 #endif 1612 } 1613 1614 /* 1615 * usage -- 1616 * exit with usage message 1617 */ 1618 static void 1619 usage() 1620 { 1621 (void)fprintf(stderr, 1622 "Usage: %s [-Beiknqrst] [-D variable] [-d flags] [-f makefile ]\n\ 1623 [-I directory] [-j max_jobs] [-m directory] [-V variable]\n\ 1624 [variable=value] [target ...]\n", progname); 1625 exit(2); 1626 } 1627 1628 1629 int 1630 PrintAddr(a, b) 1631 ClientData a; 1632 ClientData b; 1633 { 1634 printf("%lx ", (unsigned long) a); 1635 return b ? 0 : 0; 1636 } 1637 1638 1639 1640 void 1641 PrintOnError(s) 1642 char *s; 1643 { 1644 char tmp[64]; 1645 1646 if (s) 1647 printf("%s", s); 1648 1649 printf("\n%s: stopped in %s\n", progname, curdir); 1650 strncpy(tmp, "${MAKE_PRINT_VAR_ON_ERROR:@v@$v='${$v}'\n@}", 1651 sizeof(tmp) - 1); 1652 s = Var_Subst(NULL, tmp, VAR_GLOBAL, 0); 1653 if (s && *s) 1654 printf("%s", s); 1655 } 1656 1657 void 1658 Main_ExportMAKEFLAGS(first) 1659 Boolean first; 1660 { 1661 static int once = 1; 1662 char tmp[64]; 1663 char *s; 1664 1665 if (once != first) 1666 return; 1667 once = 0; 1668 1669 strncpy(tmp, "${.MAKEFLAGS} ${.MAKEOVERRIDES:O:u:@v@$v=${$v:Q}@}", 1670 sizeof(tmp)); 1671 s = Var_Subst(NULL, tmp, VAR_CMD, 0); 1672 if (s && *s) { 1673 #ifdef POSIX 1674 setenv("MAKEFLAGS", s, 1); 1675 #else 1676 setenv("MAKE", s, 1); 1677 #endif 1678 } 1679 } 1680
Indexes created Wed Sep 24 22:09:59 GMT 2025