1 /* $NetBSD: main.c,v 1.257 2017/02/08 17:47:36 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1988, 1989, 1990, 1993 5 * The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 /* 36 * Copyright (c) 1989 by Berkeley Softworks 37 * All rights reserved. 38 * 39 * This code is derived from software contributed to Berkeley by 40 * Adam de Boor. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. All advertising materials mentioning features or use of this software 51 * must display the following acknowledgement: 52 * This product includes software developed by the University of 53 * California, Berkeley and its contributors. 54 * 4. Neither the name of the University nor the names of its contributors 55 * may be used to endorse or promote products derived from this software 56 * without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 * SUCH DAMAGE. 69 */ 70 71 #ifndef MAKE_NATIVE 72 static char rcsid[] = "$NetBSD: main.c,v 1.257 2017/02/08 17:47:36 christos Exp $"; 73 #else 74 #include <sys/cdefs.h> 75 #ifndef lint 76 __COPYRIGHT("@(#) Copyright (c) 1988, 1989, 1990, 1993\ 77 The Regents of the University of California. All rights reserved."); 78 #endif /* not lint */ 79 80 #ifndef lint 81 #if 0 82 static char sccsid[] = "@(#)main.c 8.3 (Berkeley) 3/19/94"; 83 #else 84 __RCSID("$NetBSD: main.c,v 1.257 2017/02/08 17:47:36 christos Exp $"); 85 #endif 86 #endif /* not lint */ 87 #endif 88 89 /*- 90 * main.c -- 91 * The main file for this entire program. Exit routines etc 92 * reside here. 93 * 94 * Utility functions defined in this file: 95 * Main_ParseArgLine Takes a line of arguments, breaks them and 96 * treats them as if they were given when first 97 * invoked. Used by the parse module to implement 98 * the .MFLAGS target. 99 * 100 * Error Print a tagged error message. The global 101 * MAKE variable must have been defined. This 102 * takes a format string and optional arguments 103 * for it. 104 * 105 * Fatal Print an error message and exit. Also takes 106 * a format string and arguments for it. 107 * 108 * Punt Aborts all jobs and exits with a message. Also 109 * takes a format string and arguments for it. 110 * 111 * Finish Finish things up by printing the number of 112 * errors which occurred, as passed to it, and 113 * exiting. 114 */ 115 116 #include <sys/types.h> 117 #include <sys/time.h> 118 #include <sys/param.h> 119 #include <sys/resource.h> 120 #include <sys/stat.h> 121 #if defined(MAKE_NATIVE) && defined(HAVE_SYSCTL) 122 #include <sys/sysctl.h> 123 #endif 124 #include <sys/utsname.h> 125 #include "wait.h" 126 127 #include <errno.h> 128 #include <signal.h> 129 #include <stdarg.h> 130 #include <stdio.h> 131 #include <stdlib.h> 132 #include <time.h> 133 #include <ctype.h> 134 135 #include "make.h" 136 #include "hash.h" 137 #include "dir.h" 138 #include "job.h" 139 #include "pathnames.h" 140 #include "trace.h" 141 142 #ifdef USE_IOVEC 143 #include <sys/uio.h> 144 #endif 145 146 #ifndef DEFMAXLOCAL 147 #define DEFMAXLOCAL DEFMAXJOBS 148 #endif /* DEFMAXLOCAL */ 149 150 #ifndef __arraycount 151 # define __arraycount(__x) (sizeof(__x) / sizeof(__x[0])) 152 #endif 153 154 Lst create; /* Targets to be made */ 155 time_t now; /* Time at start of make */ 156 GNode *DEFAULT; /* .DEFAULT node */ 157 Boolean allPrecious; /* .PRECIOUS given on line by itself */ 158 Boolean deleteOnError; /* .DELETE_ON_ERROR: set */ 159 160 static Boolean noBuiltins; /* -r flag */ 161 static Lst makefiles; /* ordered list of makefiles to read */ 162 static Boolean printVars; /* print value of one or more vars */ 163 static Lst variables; /* list of variables to print */ 164 int maxJobs; /* -j argument */ 165 static int maxJobTokens; /* -j argument */ 166 Boolean compatMake; /* -B argument */ 167 int debug; /* -d argument */ 168 Boolean debugVflag; /* -dV */ 169 Boolean noExecute; /* -n flag */ 170 Boolean noRecursiveExecute; /* -N flag */ 171 Boolean keepgoing; /* -k flag */ 172 Boolean queryFlag; /* -q flag */ 173 Boolean touchFlag; /* -t flag */ 174 Boolean enterFlag; /* -w flag */ 175 Boolean enterFlagObj; /* -w and objdir != srcdir */ 176 Boolean ignoreErrors; /* -i flag */ 177 Boolean beSilent; /* -s flag */ 178 Boolean oldVars; /* variable substitution style */ 179 Boolean checkEnvFirst; /* -e flag */ 180 Boolean parseWarnFatal; /* -W flag */ 181 Boolean jobServer; /* -J flag */ 182 static int jp_0 = -1, jp_1 = -1; /* ends of parent job pipe */ 183 Boolean varNoExportEnv; /* -X flag */ 184 Boolean doing_depend; /* Set while reading .depend */ 185 static Boolean jobsRunning; /* TRUE if the jobs might be running */ 186 static const char * tracefile; 187 static void MainParseArgs(int, char **); 188 static int ReadMakefile(const void *, const void *); 189 static void usage(void) MAKE_ATTR_DEAD; 190 191 static Boolean ignorePWD; /* if we use -C, PWD is meaningless */ 192 static char objdir[MAXPATHLEN + 1]; /* where we chdir'ed to */ 193 char curdir[MAXPATHLEN + 1]; /* Startup directory */ 194 char *progname; /* the program name */ 195 char *makeDependfile; 196 pid_t myPid; 197 int makelevel; 198 199 Boolean forceJobs = FALSE; 200 201 /* 202 * On some systems MACHINE is defined as something other than 203 * what we want. 204 */ 205 #ifdef FORCE_MACHINE 206 # undef MACHINE 207 # define MACHINE FORCE_MACHINE 208 #endif 209 210 extern Lst parseIncPath; 211 212 /* 213 * For compatibility with the POSIX version of MAKEFLAGS that includes 214 * all the options with out -, convert flags to -f -l -a -g -s. 215 */ 216 static char * 217 explode(const char *flags) 218 { 219 size_t len; 220 char *nf, *st; 221 const char *f; 222 223 if (flags == NULL) 224 return NULL; 225 226 for (f = flags; *f; f++) 227 if (!isalpha((unsigned char)*f)) 228 break; 229 230 if (*f) 231 return bmake_strdup(flags); 232 233 len = strlen(flags); 234 st = nf = bmake_malloc(len * 3 + 1); 235 while (*flags) { 236 *nf++ = '-'; 237 *nf++ = *flags++; 238 *nf++ = ' '; 239 } 240 *nf = '\0'; 241 return st; 242 } 243 244 static void 245 parse_debug_options(const char *argvalue) 246 { 247 const char *modules; 248 const char *mode; 249 char *fname; 250 int len; 251 252 for (modules = argvalue; *modules; ++modules) { 253 switch (*modules) { 254 case 'A': 255 debug = ~0; 256 break; 257 case 'a': 258 debug |= DEBUG_ARCH; 259 break; 260 case 'C': 261 debug |= DEBUG_CWD; 262 break; 263 case 'c': 264 debug |= DEBUG_COND; 265 break; 266 case 'd': 267 debug |= DEBUG_DIR; 268 break; 269 case 'e': 270 debug |= DEBUG_ERROR; 271 break; 272 case 'f': 273 debug |= DEBUG_FOR; 274 break; 275 case 'g': 276 if (modules[1] == '1') { 277 debug |= DEBUG_GRAPH1; 278 ++modules; 279 } 280 else if (modules[1] == '2') { 281 debug |= DEBUG_GRAPH2; 282 ++modules; 283 } 284 else if (modules[1] == '3') { 285 debug |= DEBUG_GRAPH3; 286 ++modules; 287 } 288 break; 289 case 'j': 290 debug |= DEBUG_JOB; 291 break; 292 case 'l': 293 debug |= DEBUG_LOUD; 294 break; 295 case 'M': 296 debug |= DEBUG_META; 297 break; 298 case 'm': 299 debug |= DEBUG_MAKE; 300 break; 301 case 'n': 302 debug |= DEBUG_SCRIPT; 303 break; 304 case 'p': 305 debug |= DEBUG_PARSE; 306 break; 307 case 's': 308 debug |= DEBUG_SUFF; 309 break; 310 case 't': 311 debug |= DEBUG_TARG; 312 break; 313 case 'V': 314 debugVflag = TRUE; 315 break; 316 case 'v': 317 debug |= DEBUG_VAR; 318 break; 319 case 'x': 320 debug |= DEBUG_SHELL; 321 break; 322 case 'F': 323 if (debug_file != stdout && debug_file != stderr) 324 fclose(debug_file); 325 if (*++modules == '+') { 326 modules++; 327 mode = "a"; 328 } else 329 mode = "w"; 330 if (strcmp(modules, "stdout") == 0) { 331 debug_file = stdout; 332 goto debug_setbuf; 333 } 334 if (strcmp(modules, "stderr") == 0) { 335 debug_file = stderr; 336 goto debug_setbuf; 337 } 338 len = strlen(modules); 339 fname = malloc(len + 20); 340 memcpy(fname, modules, len + 1); 341 /* Let the filename be modified by the pid */ 342 if (strcmp(fname + len - 3, ".%d") == 0) 343 snprintf(fname + len - 2, 20, "%d", getpid()); 344 debug_file = fopen(fname, mode); 345 if (!debug_file) { 346 fprintf(stderr, "Cannot open debug file %s\n", 347 fname); 348 usage(); 349 } 350 free(fname); 351 goto debug_setbuf; 352 default: 353 (void)fprintf(stderr, 354 "%s: illegal argument to d option -- %c\n", 355 progname, *modules); 356 usage(); 357 } 358 } 359 debug_setbuf: 360 /* 361 * Make the debug_file unbuffered, and make 362 * stdout line buffered (unless debugfile == stdout). 363 */ 364 setvbuf(debug_file, NULL, _IONBF, 0); 365 if (debug_file != stdout) { 366 setvbuf(stdout, NULL, _IOLBF, 0); 367 } 368 } 369 370 /*- 371 * MainParseArgs -- 372 * Parse a given argument vector. Called from main() and from 373 * Main_ParseArgLine() when the .MAKEFLAGS target is used. 374 * 375 * XXX: Deal with command line overriding .MAKEFLAGS in makefile 376 * 377 * Results: 378 * None 379 * 380 * Side Effects: 381 * Various global and local flags will be set depending on the flags 382 * given 383 */ 384 static void 385 MainParseArgs(int argc, char **argv) 386 { 387 char *p; 388 int c = '?'; 389 int arginc; 390 char *argvalue; 391 const char *getopt_def; 392 struct stat sa, sb; 393 char *optscan; 394 Boolean inOption, dashDash = FALSE; 395 char found_path[MAXPATHLEN + 1]; /* for searching for sys.mk */ 396 397 #define OPTFLAGS "BC:D:I:J:NST:V:WXd:ef:ij:km:nqrstw" 398 /* Can't actually use getopt(3) because rescanning is not portable */ 399 400 getopt_def = OPTFLAGS; 401 rearg: 402 inOption = FALSE; 403 optscan = NULL; 404 while(argc > 1) { 405 char *getopt_spec; 406 if(!inOption) 407 optscan = argv[1]; 408 c = *optscan++; 409 arginc = 0; 410 if(inOption) { 411 if(c == '\0') { 412 ++argv; 413 --argc; 414 inOption = FALSE; 415 continue; 416 } 417 } else { 418 if (c != '-' || dashDash) 419 break; 420 inOption = TRUE; 421 c = *optscan++; 422 } 423 /* '-' found at some earlier point */ 424 getopt_spec = strchr(getopt_def, c); 425 if(c != '\0' && getopt_spec != NULL && getopt_spec[1] == ':') { 426 /* -<something> found, and <something> should have an arg */ 427 inOption = FALSE; 428 arginc = 1; 429 argvalue = optscan; 430 if(*argvalue == '\0') { 431 if (argc < 3) 432 goto noarg; 433 argvalue = argv[2]; 434 arginc = 2; 435 } 436 } else { 437 argvalue = NULL; 438 } 439 switch(c) { 440 case '\0': 441 arginc = 1; 442 inOption = FALSE; 443 break; 444 case 'B': 445 compatMake = TRUE; 446 Var_Append(MAKEFLAGS, "-B", VAR_GLOBAL); 447 Var_Set(MAKE_MODE, "compat", VAR_GLOBAL, 0); 448 break; 449 case 'C': 450 if (chdir(argvalue) == -1) { 451 (void)fprintf(stderr, 452 "%s: chdir %s: %s\n", 453 progname, argvalue, 454 strerror(errno)); 455 exit(1); 456 } 457 if (getcwd(curdir, MAXPATHLEN) == NULL) { 458 (void)fprintf(stderr, "%s: %s.\n", progname, strerror(errno)); 459 exit(2); 460 } 461 if (stat(argvalue, &sa) != -1 && 462 stat(curdir, &sb) != -1 && 463 sa.st_ino == sb.st_ino && 464 sa.st_dev == sb.st_dev) 465 strncpy(curdir, argvalue, MAXPATHLEN); 466 ignorePWD = TRUE; 467 break; 468 case 'D': 469 if (argvalue == NULL || argvalue[0] == 0) goto noarg; 470 Var_Set(argvalue, "1", VAR_GLOBAL, 0); 471 Var_Append(MAKEFLAGS, "-D", VAR_GLOBAL); 472 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 473 break; 474 case 'I': 475 if (argvalue == NULL) goto noarg; 476 Parse_AddIncludeDir(argvalue); 477 Var_Append(MAKEFLAGS, "-I", VAR_GLOBAL); 478 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 479 break; 480 case 'J': 481 if (argvalue == NULL) goto noarg; 482 if (sscanf(argvalue, "%d,%d", &jp_0, &jp_1) != 2) { 483 (void)fprintf(stderr, 484 "%s: internal error -- J option malformed (%s)\n", 485 progname, argvalue); 486 usage(); 487 } 488 if ((fcntl(jp_0, F_GETFD, 0) < 0) || 489 (fcntl(jp_1, F_GETFD, 0) < 0)) { 490 #if 0 491 (void)fprintf(stderr, 492 "%s: ###### warning -- J descriptors were closed!\n", 493 progname); 494 exit(2); 495 #endif 496 jp_0 = -1; 497 jp_1 = -1; 498 compatMake = TRUE; 499 } else { 500 Var_Append(MAKEFLAGS, "-J", VAR_GLOBAL); 501 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 502 jobServer = TRUE; 503 } 504 break; 505 case 'N': 506 noExecute = TRUE; 507 noRecursiveExecute = TRUE; 508 Var_Append(MAKEFLAGS, "-N", VAR_GLOBAL); 509 break; 510 case 'S': 511 keepgoing = FALSE; 512 Var_Append(MAKEFLAGS, "-S", VAR_GLOBAL); 513 break; 514 case 'T': 515 if (argvalue == NULL) goto noarg; 516 tracefile = bmake_strdup(argvalue); 517 Var_Append(MAKEFLAGS, "-T", VAR_GLOBAL); 518 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 519 break; 520 case 'V': 521 if (argvalue == NULL) goto noarg; 522 printVars = TRUE; 523 (void)Lst_AtEnd(variables, argvalue); 524 Var_Append(MAKEFLAGS, "-V", VAR_GLOBAL); 525 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 526 break; 527 case 'W': 528 parseWarnFatal = TRUE; 529 break; 530 case 'X': 531 varNoExportEnv = TRUE; 532 Var_Append(MAKEFLAGS, "-X", VAR_GLOBAL); 533 break; 534 case 'd': 535 if (argvalue == NULL) goto noarg; 536 /* If '-d-opts' don't pass to children */ 537 if (argvalue[0] == '-') 538 argvalue++; 539 else { 540 Var_Append(MAKEFLAGS, "-d", VAR_GLOBAL); 541 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 542 } 543 parse_debug_options(argvalue); 544 break; 545 case 'e': 546 checkEnvFirst = TRUE; 547 Var_Append(MAKEFLAGS, "-e", VAR_GLOBAL); 548 break; 549 case 'f': 550 if (argvalue == NULL) goto noarg; 551 (void)Lst_AtEnd(makefiles, argvalue); 552 break; 553 case 'i': 554 ignoreErrors = TRUE; 555 Var_Append(MAKEFLAGS, "-i", VAR_GLOBAL); 556 break; 557 case 'j': 558 if (argvalue == NULL) goto noarg; 559 forceJobs = TRUE; 560 maxJobs = strtol(argvalue, &p, 0); 561 if (*p != '\0' || maxJobs < 1) { 562 (void)fprintf(stderr, "%s: illegal argument to -j -- must be positive integer!\n", 563 progname); 564 exit(1); 565 } 566 Var_Append(MAKEFLAGS, "-j", VAR_GLOBAL); 567 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 568 Var_Set(".MAKE.JOBS", argvalue, VAR_GLOBAL, 0); 569 maxJobTokens = maxJobs; 570 break; 571 case 'k': 572 keepgoing = TRUE; 573 Var_Append(MAKEFLAGS, "-k", VAR_GLOBAL); 574 break; 575 case 'm': 576 if (argvalue == NULL) goto noarg; 577 /* look for magic parent directory search string */ 578 if (strncmp(".../", argvalue, 4) == 0) { 579 if (!Dir_FindHereOrAbove(curdir, argvalue+4, 580 found_path, sizeof(found_path))) 581 break; /* nothing doing */ 582 (void)Dir_AddDir(sysIncPath, found_path); 583 } else { 584 (void)Dir_AddDir(sysIncPath, argvalue); 585 } 586 Var_Append(MAKEFLAGS, "-m", VAR_GLOBAL); 587 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 588 break; 589 case 'n': 590 noExecute = TRUE; 591 Var_Append(MAKEFLAGS, "-n", VAR_GLOBAL); 592 break; 593 case 'q': 594 queryFlag = TRUE; 595 /* Kind of nonsensical, wot? */ 596 Var_Append(MAKEFLAGS, "-q", VAR_GLOBAL); 597 break; 598 case 'r': 599 noBuiltins = TRUE; 600 Var_Append(MAKEFLAGS, "-r", VAR_GLOBAL); 601 break; 602 case 's': 603 beSilent = TRUE; 604 Var_Append(MAKEFLAGS, "-s", VAR_GLOBAL); 605 break; 606 case 't': 607 touchFlag = TRUE; 608 Var_Append(MAKEFLAGS, "-t", VAR_GLOBAL); 609 break; 610 case 'w': 611 enterFlag = TRUE; 612 Var_Append(MAKEFLAGS, "-w", VAR_GLOBAL); 613 break; 614 case '-': 615 dashDash = TRUE; 616 break; 617 default: 618 case '?': 619 #ifndef MAKE_NATIVE 620 fprintf(stderr, "getopt(%s) -> %d (%c)\n", 621 OPTFLAGS, c, c); 622 #endif 623 usage(); 624 } 625 argv += arginc; 626 argc -= arginc; 627 } 628 629 oldVars = TRUE; 630 631 /* 632 * See if the rest of the arguments are variable assignments and 633 * perform them if so. Else take them to be targets and stuff them 634 * on the end of the "create" list. 635 */ 636 for (; argc > 1; ++argv, --argc) 637 if (Parse_IsVar(argv[1])) { 638 Parse_DoVar(argv[1], VAR_CMD); 639 } else { 640 if (!*argv[1]) 641 Punt("illegal (null) argument."); 642 if (*argv[1] == '-' && !dashDash) 643 goto rearg; 644 (void)Lst_AtEnd(create, bmake_strdup(argv[1])); 645 } 646 647 return; 648 noarg: 649 (void)fprintf(stderr, "%s: option requires an argument -- %c\n", 650 progname, c); 651 usage(); 652 } 653 654 /*- 655 * Main_ParseArgLine -- 656 * Used by the parse module when a .MFLAGS or .MAKEFLAGS target 657 * is encountered and by main() when reading the .MAKEFLAGS envariable. 658 * Takes a line of arguments and breaks it into its 659 * component words and passes those words and the number of them to the 660 * MainParseArgs function. 661 * The line should have all its leading whitespace removed. 662 * 663 * Input: 664 * line Line to fracture 665 * 666 * Results: 667 * None 668 * 669 * Side Effects: 670 * Only those that come from the various arguments. 671 */ 672 void 673 Main_ParseArgLine(const char *line) 674 { 675 char **argv; /* Manufactured argument vector */ 676 int argc; /* Number of arguments in argv */ 677 char *args; /* Space used by the args */ 678 char *buf, *p1; 679 char *argv0 = Var_Value(".MAKE", VAR_GLOBAL, &p1); 680 size_t len; 681 682 if (line == NULL) 683 return; 684 for (; *line == ' '; ++line) 685 continue; 686 if (!*line) 687 return; 688 689 #ifndef POSIX 690 { 691 /* 692 * $MAKE may simply be naming the make(1) binary 693 */ 694 char *cp; 695 696 if (!(cp = strrchr(line, '/'))) 697 cp = line; 698 if ((cp = strstr(cp, "make")) && 699 strcmp(cp, "make") == 0) 700 return; 701 } 702 #endif 703 buf = bmake_malloc(len = strlen(line) + strlen(argv0) + 2); 704 (void)snprintf(buf, len, "%s %s", argv0, line); 705 free(p1); 706 707 argv = brk_string(buf, &argc, TRUE, &args); 708 if (argv == NULL) { 709 Error("Unterminated quoted string [%s]", buf); 710 free(buf); 711 return; 712 } 713 free(buf); 714 MainParseArgs(argc, argv); 715 716 free(args); 717 free(argv); 718 } 719 720 Boolean 721 Main_SetObjdir(const char *fmt, ...) 722 { 723 struct stat sb; 724 char *p, *path; 725 char buf[MAXPATHLEN + 1], pbuf[MAXPATHLEN + 1]; 726 Boolean rc = FALSE; 727 va_list ap; 728 729 va_start(ap, fmt); 730 vsnprintf(path = pbuf, MAXPATHLEN, fmt, ap); 731 va_end(ap); 732 733 /* expand variable substitutions */ 734 if (strchr(path, '$') != 0) { 735 snprintf(buf, MAXPATHLEN, "%s", path); 736 path = p = Var_Subst(NULL, buf, VAR_GLOBAL, VARF_WANTRES); 737 } else 738 p = NULL; 739 740 if (path[0] != '/') { 741 snprintf(buf, MAXPATHLEN, "%s/%s", curdir, path); 742 path = buf; 743 } 744 745 /* look for the directory and try to chdir there */ 746 if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) { 747 if (chdir(path)) { 748 (void)fprintf(stderr, "make warning: %s: %s.\n", 749 path, strerror(errno)); 750 } else { 751 strncpy(objdir, path, MAXPATHLEN); 752 Var_Set(".OBJDIR", objdir, VAR_GLOBAL, 0); 753 setenv("PWD", objdir, 1); 754 Dir_InitDot(); 755 rc = TRUE; 756 if (enterFlag && strcmp(objdir, curdir) != 0) 757 enterFlagObj = TRUE; 758 } 759 } 760 761 free(p); 762 return rc; 763 } 764 765 static Boolean 766 Main_SetVarObjdir(const char *var, const char *suffix) 767 { 768 char *p1, *path; 769 if ((path = Var_Value(var, VAR_CMD, &p1)) == NULL) 770 return FALSE; 771 772 (void)Main_SetObjdir("%s%s", path, suffix); 773 free(p1); 774 return TRUE; 775 } 776 777 /*- 778 * ReadAllMakefiles -- 779 * wrapper around ReadMakefile() to read all. 780 * 781 * Results: 782 * TRUE if ok, FALSE on error 783 */ 784 static int 785 ReadAllMakefiles(const void *p, const void *q) 786 { 787 return (ReadMakefile(p, q) == 0); 788 } 789 790 int 791 str2Lst_Append(Lst lp, char *str, const char *sep) 792 { 793 char *cp; 794 int n; 795 796 if (!sep) 797 sep = " \t"; 798 799 for (n = 0, cp = strtok(str, sep); cp; cp = strtok(NULL, sep)) { 800 (void)Lst_AtEnd(lp, cp); 801 n++; 802 } 803 return (n); 804 } 805 806 #ifdef SIGINFO 807 /*ARGSUSED*/ 808 static void 809 siginfo(int signo MAKE_ATTR_UNUSED) 810 { 811 char dir[MAXPATHLEN]; 812 char str[2 * MAXPATHLEN]; 813 int len; 814 if (getcwd(dir, sizeof(dir)) == NULL) 815 return; 816 len = snprintf(str, sizeof(str), "%s: Working in: %s\n", progname, dir); 817 if (len > 0) 818 (void)write(STDERR_FILENO, str, (size_t)len); 819 } 820 #endif 821 822 /* 823 * Allow makefiles some control over the mode we run in. 824 */ 825 void 826 MakeMode(const char *mode) 827 { 828 char *mp = NULL; 829 830 if (!mode) 831 mode = mp = Var_Subst(NULL, "${" MAKE_MODE ":tl}", 832 VAR_GLOBAL, VARF_WANTRES); 833 834 if (mode && *mode) { 835 if (strstr(mode, "compat")) { 836 compatMake = TRUE; 837 forceJobs = FALSE; 838 } 839 #if USE_META 840 if (strstr(mode, "meta")) 841 meta_mode_init(mode); 842 #endif 843 } 844 845 free(mp); 846 } 847 848 /*- 849 * main -- 850 * The main function, for obvious reasons. Initializes variables 851 * and a few modules, then parses the arguments give it in the 852 * environment and on the command line. Reads the system makefile 853 * followed by either Makefile, makefile or the file given by the 854 * -f argument. Sets the .MAKEFLAGS PMake variable based on all the 855 * flags it has received by then uses either the Make or the Compat 856 * module to create the initial list of targets. 857 * 858 * Results: 859 * If -q was given, exits -1 if anything was out-of-date. Else it exits 860 * 0. 861 * 862 * Side Effects: 863 * The program exits when done. Targets are created. etc. etc. etc. 864 */ 865 int 866 main(int argc, char **argv) 867 { 868 Lst targs; /* target nodes to create -- passed to Make_Init */ 869 Boolean outOfDate = FALSE; /* FALSE if all targets up to date */ 870 struct stat sb, sa; 871 char *p1, *path; 872 char mdpath[MAXPATHLEN]; 873 #ifdef FORCE_MACHINE 874 const char *machine = FORCE_MACHINE; 875 #else 876 const char *machine = getenv("MACHINE"); 877 #endif 878 const char *machine_arch = getenv("MACHINE_ARCH"); 879 char *syspath = getenv("MAKESYSPATH"); 880 Lst sysMkPath; /* Path of sys.mk */ 881 char *cp = NULL, *start; 882 /* avoid faults on read-only strings */ 883 static char defsyspath[] = _PATH_DEFSYSPATH; 884 char found_path[MAXPATHLEN + 1]; /* for searching for sys.mk */ 885 struct timeval rightnow; /* to initialize random seed */ 886 struct utsname utsname; 887 888 /* default to writing debug to stderr */ 889 debug_file = stderr; 890 891 #ifdef SIGINFO 892 (void)bmake_signal(SIGINFO, siginfo); 893 #endif 894 /* 895 * Set the seed to produce a different random sequence 896 * on each program execution. 897 */ 898 gettimeofday(&rightnow, NULL); 899 srandom(rightnow.tv_sec + rightnow.tv_usec); 900 901 if ((progname = strrchr(argv[0], '/')) != NULL) 902 progname++; 903 else 904 progname = argv[0]; 905 #if defined(MAKE_NATIVE) || (defined(HAVE_SETRLIMIT) && defined(RLIMIT_NOFILE)) 906 /* 907 * get rid of resource limit on file descriptors 908 */ 909 { 910 struct rlimit rl; 911 if (getrlimit(RLIMIT_NOFILE, &rl) != -1 && 912 rl.rlim_cur != rl.rlim_max) { 913 rl.rlim_cur = rl.rlim_max; 914 (void)setrlimit(RLIMIT_NOFILE, &rl); 915 } 916 } 917 #endif 918 919 if (uname(&utsname) == -1) { 920 (void)fprintf(stderr, "%s: uname failed (%s).\n", progname, 921 strerror(errno)); 922 exit(2); 923 } 924 925 /* 926 * Get the name of this type of MACHINE from utsname 927 * so we can share an executable for similar machines. 928 * (i.e. m68k: amiga hp300, mac68k, sun3, ...) 929 * 930 * Note that both MACHINE and MACHINE_ARCH are decided at 931 * run-time. 932 */ 933 if (!machine) { 934 #ifdef MAKE_NATIVE 935 machine = utsname.machine; 936 #else 937 #ifdef MAKE_MACHINE 938 machine = MAKE_MACHINE; 939 #else 940 machine = "unknown"; 941 #endif 942 #endif 943 } 944 945 if (!machine_arch) { 946 #if defined(MAKE_NATIVE) && defined(HAVE_SYSCTL) && defined(CTL_HW) && defined(HW_MACHINE_ARCH) 947 static char machine_arch_buf[sizeof(utsname.machine)]; 948 int mib[2] = { CTL_HW, HW_MACHINE_ARCH }; 949 size_t len = sizeof(machine_arch_buf); 950 951 if (sysctl(mib, __arraycount(mib), machine_arch_buf, 952 &len, NULL, 0) < 0) { 953 (void)fprintf(stderr, "%s: sysctl failed (%s).\n", progname, 954 strerror(errno)); 955 exit(2); 956 } 957 958 machine_arch = machine_arch_buf; 959 #else 960 #ifndef MACHINE_ARCH 961 #ifdef MAKE_MACHINE_ARCH 962 machine_arch = MAKE_MACHINE_ARCH; 963 #else 964 machine_arch = "unknown"; 965 #endif 966 #else 967 machine_arch = MACHINE_ARCH; 968 #endif 969 #endif 970 } 971 972 myPid = getpid(); /* remember this for vFork() */ 973 974 /* 975 * Just in case MAKEOBJDIR wants us to do something tricky. 976 */ 977 Var_Init(); /* Initialize the lists of variables for 978 * parsing arguments */ 979 Var_Set(".MAKE.OS", utsname.sysname, VAR_GLOBAL, 0); 980 Var_Set("MACHINE", machine, VAR_GLOBAL, 0); 981 Var_Set("MACHINE_ARCH", machine_arch, VAR_GLOBAL, 0); 982 #ifdef MAKE_VERSION 983 Var_Set("MAKE_VERSION", MAKE_VERSION, VAR_GLOBAL, 0); 984 #endif 985 Var_Set(".newline", "\n", VAR_GLOBAL, 0); /* handy for :@ loops */ 986 /* 987 * This is the traditional preference for makefiles. 988 */ 989 #ifndef MAKEFILE_PREFERENCE_LIST 990 # define MAKEFILE_PREFERENCE_LIST "makefile Makefile" 991 #endif 992 Var_Set(MAKEFILE_PREFERENCE, MAKEFILE_PREFERENCE_LIST, 993 VAR_GLOBAL, 0); 994 Var_Set(MAKE_DEPENDFILE, ".depend", VAR_GLOBAL, 0); 995 996 create = Lst_Init(FALSE); 997 makefiles = Lst_Init(FALSE); 998 printVars = FALSE; 999 debugVflag = FALSE; 1000 variables = Lst_Init(FALSE); 1001 beSilent = FALSE; /* Print commands as executed */ 1002 ignoreErrors = FALSE; /* Pay attention to non-zero returns */ 1003 noExecute = FALSE; /* Execute all commands */ 1004 noRecursiveExecute = FALSE; /* Execute all .MAKE targets */ 1005 keepgoing = FALSE; /* Stop on error */ 1006 allPrecious = FALSE; /* Remove targets when interrupted */ 1007 deleteOnError = FALSE; /* Historical default behavior */ 1008 queryFlag = FALSE; /* This is not just a check-run */ 1009 noBuiltins = FALSE; /* Read the built-in rules */ 1010 touchFlag = FALSE; /* Actually update targets */ 1011 debug = 0; /* No debug verbosity, please. */ 1012 jobsRunning = FALSE; 1013 1014 maxJobs = DEFMAXLOCAL; /* Set default local max concurrency */ 1015 maxJobTokens = maxJobs; 1016 compatMake = FALSE; /* No compat mode */ 1017 ignorePWD = FALSE; 1018 1019 /* 1020 * Initialize the parsing, directory and variable modules to prepare 1021 * for the reading of inclusion paths and variable settings on the 1022 * command line 1023 */ 1024 1025 /* 1026 * Initialize various variables. 1027 * MAKE also gets this name, for compatibility 1028 * .MAKEFLAGS gets set to the empty string just in case. 1029 * MFLAGS also gets initialized empty, for compatibility. 1030 */ 1031 Parse_Init(); 1032 if (argv[0][0] == '/' || strchr(argv[0], '/') == NULL) { 1033 /* 1034 * Leave alone if it is an absolute path, or if it does 1035 * not contain a '/' in which case we need to find it in 1036 * the path, like execvp(3) and the shells do. 1037 */ 1038 p1 = argv[0]; 1039 } else { 1040 /* 1041 * A relative path, canonicalize it. 1042 */ 1043 p1 = cached_realpath(argv[0], mdpath); 1044 if (!p1 || *p1 != '/' || stat(p1, &sb) < 0) { 1045 p1 = argv[0]; /* realpath failed */ 1046 } 1047 } 1048 Var_Set("MAKE", p1, VAR_GLOBAL, 0); 1049 Var_Set(".MAKE", p1, VAR_GLOBAL, 0); 1050 Var_Set(MAKEFLAGS, "", VAR_GLOBAL, 0); 1051 Var_Set(MAKEOVERRIDES, "", VAR_GLOBAL, 0); 1052 Var_Set("MFLAGS", "", VAR_GLOBAL, 0); 1053 Var_Set(".ALLTARGETS", "", VAR_GLOBAL, 0); 1054 /* some makefiles need to know this */ 1055 Var_Set(MAKE_LEVEL ".ENV", MAKE_LEVEL_ENV, VAR_CMD, 0); 1056 1057 /* 1058 * Set some other useful macros 1059 */ 1060 { 1061 char tmp[64], *ep; 1062 1063 makelevel = ((ep = getenv(MAKE_LEVEL_ENV)) && *ep) ? atoi(ep) : 0; 1064 if (makelevel < 0) 1065 makelevel = 0; 1066 snprintf(tmp, sizeof(tmp), "%d", makelevel); 1067 Var_Set(MAKE_LEVEL, tmp, VAR_GLOBAL, 0); 1068 snprintf(tmp, sizeof(tmp), "%u", myPid); 1069 Var_Set(".MAKE.PID", tmp, VAR_GLOBAL, 0); 1070 snprintf(tmp, sizeof(tmp), "%u", getppid()); 1071 Var_Set(".MAKE.PPID", tmp, VAR_GLOBAL, 0); 1072 } 1073 if (makelevel > 0) { 1074 char pn[1024]; 1075 snprintf(pn, sizeof(pn), "%s[%d]", progname, makelevel); 1076 progname = bmake_strdup(pn); 1077 } 1078 1079 #ifdef USE_META 1080 meta_init(); 1081 #endif 1082 Dir_Init(NULL); /* Dir_* safe to call from MainParseArgs */ 1083 1084 /* 1085 * First snag any flags out of the MAKE environment variable. 1086 * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's 1087 * in a different format). 1088 */ 1089 #ifdef POSIX 1090 p1 = explode(getenv("MAKEFLAGS")); 1091 Main_ParseArgLine(p1); 1092 free(p1); 1093 #else 1094 Main_ParseArgLine(getenv("MAKE")); 1095 #endif 1096 1097 /* 1098 * Find where we are (now). 1099 * We take care of PWD for the automounter below... 1100 */ 1101 if (getcwd(curdir, MAXPATHLEN) == NULL) { 1102 (void)fprintf(stderr, "%s: getcwd: %s.\n", 1103 progname, strerror(errno)); 1104 exit(2); 1105 } 1106 1107 MainParseArgs(argc, argv); 1108 1109 if (enterFlag) 1110 printf("%s: Entering directory `%s'\n", progname, curdir); 1111 1112 /* 1113 * Verify that cwd is sane. 1114 */ 1115 if (stat(curdir, &sa) == -1) { 1116 (void)fprintf(stderr, "%s: %s: %s.\n", 1117 progname, curdir, strerror(errno)); 1118 exit(2); 1119 } 1120 1121 /* 1122 * All this code is so that we know where we are when we start up 1123 * on a different machine with pmake. 1124 * Overriding getcwd() with $PWD totally breaks MAKEOBJDIRPREFIX 1125 * since the value of curdir can vary depending on how we got 1126 * here. Ie sitting at a shell prompt (shell that provides $PWD) 1127 * or via subdir.mk in which case its likely a shell which does 1128 * not provide it. 1129 * So, to stop it breaking this case only, we ignore PWD if 1130 * MAKEOBJDIRPREFIX is set or MAKEOBJDIR contains a transform. 1131 */ 1132 #ifndef NO_PWD_OVERRIDE 1133 if (!ignorePWD) { 1134 char *pwd, *ptmp1 = NULL, *ptmp2 = NULL; 1135 1136 if ((pwd = getenv("PWD")) != NULL && 1137 Var_Value("MAKEOBJDIRPREFIX", VAR_CMD, &ptmp1) == NULL) { 1138 const char *makeobjdir = Var_Value("MAKEOBJDIR", 1139 VAR_CMD, &ptmp2); 1140 1141 if (makeobjdir == NULL || !strchr(makeobjdir, '$')) { 1142 if (stat(pwd, &sb) == 0 && 1143 sa.st_ino == sb.st_ino && 1144 sa.st_dev == sb.st_dev) 1145 (void)strncpy(curdir, pwd, MAXPATHLEN); 1146 } 1147 } 1148 free(ptmp1); 1149 free(ptmp2); 1150 } 1151 #endif 1152 Var_Set(".CURDIR", curdir, VAR_GLOBAL, 0); 1153 1154 /* 1155 * Find the .OBJDIR. If MAKEOBJDIRPREFIX, or failing that, 1156 * MAKEOBJDIR is set in the environment, try only that value 1157 * and fall back to .CURDIR if it does not exist. 1158 * 1159 * Otherwise, try _PATH_OBJDIR.MACHINE-MACHINE_ARCH, _PATH_OBJDIR.MACHINE, 1160 * and * finally _PATH_OBJDIRPREFIX`pwd`, in that order. If none 1161 * of these paths exist, just use .CURDIR. 1162 */ 1163 Dir_Init(curdir); 1164 (void)Main_SetObjdir("%s", curdir); 1165 1166 if (!Main_SetVarObjdir("MAKEOBJDIRPREFIX", curdir) && 1167 !Main_SetVarObjdir("MAKEOBJDIR", "") && 1168 !Main_SetObjdir("%s.%s-%s", _PATH_OBJDIR, machine, machine_arch) && 1169 !Main_SetObjdir("%s.%s", _PATH_OBJDIR, machine) && 1170 !Main_SetObjdir("%s", _PATH_OBJDIR)) 1171 (void)Main_SetObjdir("%s%s", _PATH_OBJDIRPREFIX, curdir); 1172 1173 /* 1174 * Initialize archive, target and suffix modules in preparation for 1175 * parsing the makefile(s) 1176 */ 1177 Arch_Init(); 1178 Targ_Init(); 1179 Suff_Init(); 1180 Trace_Init(tracefile); 1181 1182 DEFAULT = NULL; 1183 (void)time(&now); 1184 1185 Trace_Log(MAKESTART, NULL); 1186 1187 /* 1188 * Set up the .TARGETS variable to contain the list of targets to be 1189 * created. If none specified, make the variable empty -- the parser 1190 * will fill the thing in with the default or .MAIN target. 1191 */ 1192 if (!Lst_IsEmpty(create)) { 1193 LstNode ln; 1194 1195 for (ln = Lst_First(create); ln != NULL; 1196 ln = Lst_Succ(ln)) { 1197 char *name = (char *)Lst_Datum(ln); 1198 1199 Var_Append(".TARGETS", name, VAR_GLOBAL); 1200 } 1201 } else 1202 Var_Set(".TARGETS", "", VAR_GLOBAL, 0); 1203 1204 1205 /* 1206 * If no user-supplied system path was given (through the -m option) 1207 * add the directories from the DEFSYSPATH (more than one may be given 1208 * as dir1:...:dirn) to the system include path. 1209 */ 1210 if (syspath == NULL || *syspath == '\0') 1211 syspath = defsyspath; 1212 else 1213 syspath = bmake_strdup(syspath); 1214 1215 for (start = syspath; *start != '\0'; start = cp) { 1216 for (cp = start; *cp != '\0' && *cp != ':'; cp++) 1217 continue; 1218 if (*cp == ':') { 1219 *cp++ = '\0'; 1220 } 1221 /* look for magic parent directory search string */ 1222 if (strncmp(".../", start, 4) != 0) { 1223 (void)Dir_AddDir(defIncPath, start); 1224 } else { 1225 if (Dir_FindHereOrAbove(curdir, start+4, 1226 found_path, sizeof(found_path))) { 1227 (void)Dir_AddDir(defIncPath, found_path); 1228 } 1229 } 1230 } 1231 if (syspath != defsyspath) 1232 free(syspath); 1233 1234 /* 1235 * Read in the built-in rules first, followed by the specified 1236 * makefile, if it was (makefile != NULL), or the default 1237 * makefile and Makefile, in that order, if it wasn't. 1238 */ 1239 if (!noBuiltins) { 1240 LstNode ln; 1241 1242 sysMkPath = Lst_Init(FALSE); 1243 Dir_Expand(_PATH_DEFSYSMK, 1244 Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath, 1245 sysMkPath); 1246 if (Lst_IsEmpty(sysMkPath)) 1247 Fatal("%s: no system rules (%s).", progname, 1248 _PATH_DEFSYSMK); 1249 ln = Lst_Find(sysMkPath, NULL, ReadMakefile); 1250 if (ln == NULL) 1251 Fatal("%s: cannot open %s.", progname, 1252 (char *)Lst_Datum(ln)); 1253 } 1254 1255 if (!Lst_IsEmpty(makefiles)) { 1256 LstNode ln; 1257 1258 ln = Lst_Find(makefiles, NULL, ReadAllMakefiles); 1259 if (ln != NULL) 1260 Fatal("%s: cannot open %s.", progname, 1261 (char *)Lst_Datum(ln)); 1262 } else { 1263 p1 = Var_Subst(NULL, "${" MAKEFILE_PREFERENCE "}", 1264 VAR_CMD, VARF_WANTRES); 1265 if (p1) { 1266 (void)str2Lst_Append(makefiles, p1, NULL); 1267 (void)Lst_Find(makefiles, NULL, ReadMakefile); 1268 free(p1); 1269 } 1270 } 1271 1272 /* In particular suppress .depend for '-r -V .OBJDIR -f /dev/null' */ 1273 if (!noBuiltins || !printVars) { 1274 makeDependfile = Var_Subst(NULL, "${.MAKE.DEPENDFILE:T}", 1275 VAR_CMD, VARF_WANTRES); 1276 doing_depend = TRUE; 1277 (void)ReadMakefile(makeDependfile, NULL); 1278 doing_depend = FALSE; 1279 } 1280 1281 if (enterFlagObj) 1282 printf("%s: Entering directory `%s'\n", progname, objdir); 1283 1284 MakeMode(NULL); 1285 1286 Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL, &p1), VAR_GLOBAL); 1287 free(p1); 1288 1289 if (!forceJobs && !compatMake && 1290 Var_Exists(".MAKE.JOBS", VAR_GLOBAL)) { 1291 char *value; 1292 int n; 1293 1294 value = Var_Subst(NULL, "${.MAKE.JOBS}", VAR_GLOBAL, VARF_WANTRES); 1295 n = strtol(value, NULL, 0); 1296 if (n < 1) { 1297 (void)fprintf(stderr, "%s: illegal value for .MAKE.JOBS -- must be positive integer!\n", 1298 progname); 1299 exit(1); 1300 } 1301 if (n != maxJobs) { 1302 Var_Append(MAKEFLAGS, "-j", VAR_GLOBAL); 1303 Var_Append(MAKEFLAGS, value, VAR_GLOBAL); 1304 } 1305 maxJobs = n; 1306 maxJobTokens = maxJobs; 1307 forceJobs = TRUE; 1308 free(value); 1309 } 1310 1311 /* 1312 * Be compatible if user did not specify -j and did not explicitly 1313 * turned compatibility on 1314 */ 1315 if (!compatMake && !forceJobs) { 1316 compatMake = TRUE; 1317 } 1318 1319 if (!compatMake) 1320 Job_ServerStart(maxJobTokens, jp_0, jp_1); 1321 if (DEBUG(JOB)) 1322 fprintf(debug_file, "job_pipe %d %d, maxjobs %d, tokens %d, compat %d\n", 1323 jp_0, jp_1, maxJobs, maxJobTokens, compatMake); 1324 1325 if (!printVars) 1326 Main_ExportMAKEFLAGS(TRUE); /* initial export */ 1327 1328 /* 1329 * For compatibility, look at the directories in the VPATH variable 1330 * and add them to the search path, if the variable is defined. The 1331 * variable's value is in the same format as the PATH envariable, i.e. 1332 * <directory>:<directory>:<directory>... 1333 */ 1334 if (Var_Exists("VPATH", VAR_CMD)) { 1335 char *vpath, savec; 1336 /* 1337 * GCC stores string constants in read-only memory, but 1338 * Var_Subst will want to write this thing, so store it 1339 * in an array 1340 */ 1341 static char VPATH[] = "${VPATH}"; 1342 1343 vpath = Var_Subst(NULL, VPATH, VAR_CMD, VARF_WANTRES); 1344 path = vpath; 1345 do { 1346 /* skip to end of directory */ 1347 for (cp = path; *cp != ':' && *cp != '\0'; cp++) 1348 continue; 1349 /* Save terminator character so know when to stop */ 1350 savec = *cp; 1351 *cp = '\0'; 1352 /* Add directory to search path */ 1353 (void)Dir_AddDir(dirSearchPath, path); 1354 *cp = savec; 1355 path = cp + 1; 1356 } while (savec == ':'); 1357 free(vpath); 1358 } 1359 1360 /* 1361 * Now that all search paths have been read for suffixes et al, it's 1362 * time to add the default search path to their lists... 1363 */ 1364 Suff_DoPaths(); 1365 1366 /* 1367 * Propagate attributes through :: dependency lists. 1368 */ 1369 Targ_Propagate(); 1370 1371 /* print the initial graph, if the user requested it */ 1372 if (DEBUG(GRAPH1)) 1373 Targ_PrintGraph(1); 1374 1375 /* print the values of any variables requested by the user */ 1376 if (printVars) { 1377 LstNode ln; 1378 Boolean expandVars; 1379 1380 if (debugVflag) 1381 expandVars = FALSE; 1382 else 1383 expandVars = getBoolean(".MAKE.EXPAND_VARIABLES", FALSE); 1384 for (ln = Lst_First(variables); ln != NULL; 1385 ln = Lst_Succ(ln)) { 1386 char *var = (char *)Lst_Datum(ln); 1387 char *value; 1388 1389 if (strchr(var, '$')) { 1390 value = p1 = Var_Subst(NULL, var, VAR_GLOBAL, 1391 VARF_WANTRES); 1392 } else if (expandVars) { 1393 char tmp[128]; 1394 1395 if (snprintf(tmp, sizeof(tmp), "${%s}", var) >= (int)(sizeof(tmp))) 1396 Fatal("%s: variable name too big: %s", 1397 progname, var); 1398 value = p1 = Var_Subst(NULL, tmp, VAR_GLOBAL, 1399 VARF_WANTRES); 1400 } else { 1401 value = Var_Value(var, VAR_GLOBAL, &p1); 1402 } 1403 printf("%s\n", value ? value : ""); 1404 free(p1); 1405 } 1406 } else { 1407 /* 1408 * Have now read the entire graph and need to make a list of 1409 * targets to create. If none was given on the command line, 1410 * we consult the parsing module to find the main target(s) 1411 * to create. 1412 */ 1413 if (Lst_IsEmpty(create)) 1414 targs = Parse_MainName(); 1415 else 1416 targs = Targ_FindList(create, TARG_CREATE); 1417 1418 if (!compatMake) { 1419 /* 1420 * Initialize job module before traversing the graph 1421 * now that any .BEGIN and .END targets have been read. 1422 * This is done only if the -q flag wasn't given 1423 * (to prevent the .BEGIN from being executed should 1424 * it exist). 1425 */ 1426 if (!queryFlag) { 1427 Job_Init(); 1428 jobsRunning = TRUE; 1429 } 1430 1431 /* Traverse the graph, checking on all the targets */ 1432 outOfDate = Make_Run(targs); 1433 } else { 1434 /* 1435 * Compat_Init will take care of creating all the 1436 * targets as well as initializing the module. 1437 */ 1438 Compat_Run(targs); 1439 } 1440 } 1441 1442 #ifdef CLEANUP 1443 Lst_Destroy(targs, NULL); 1444 Lst_Destroy(variables, NULL); 1445 Lst_Destroy(makefiles, NULL); 1446 Lst_Destroy(create, (FreeProc *)free); 1447 #endif 1448 1449 /* print the graph now it's been processed if the user requested it */ 1450 if (DEBUG(GRAPH2)) 1451 Targ_PrintGraph(2); 1452 1453 Trace_Log(MAKEEND, 0); 1454 1455 if (enterFlagObj) 1456 printf("%s: Leaving directory `%s'\n", progname, objdir); 1457 if (enterFlag) 1458 printf("%s: Leaving directory `%s'\n", progname, curdir); 1459 1460 #ifdef USE_META 1461 meta_finish(); 1462 #endif 1463 Suff_End(); 1464 Targ_End(); 1465 Arch_End(); 1466 Var_End(); 1467 Parse_End(); 1468 Dir_End(); 1469 Job_End(); 1470 Trace_End(); 1471 1472 return outOfDate ? 1 : 0; 1473 } 1474 1475 /*- 1476 * ReadMakefile -- 1477 * Open and parse the given makefile. 1478 * 1479 * Results: 1480 * 0 if ok. -1 if couldn't open file. 1481 * 1482 * Side Effects: 1483 * lots 1484 */ 1485 static int 1486 ReadMakefile(const void *p, const void *q MAKE_ATTR_UNUSED) 1487 { 1488 const char *fname = p; /* makefile to read */ 1489 int fd; 1490 size_t len = MAXPATHLEN; 1491 char *name, *path = bmake_malloc(len); 1492 1493 if (!strcmp(fname, "-")) { 1494 Parse_File(NULL /*stdin*/, -1); 1495 Var_Set("MAKEFILE", "", VAR_INTERNAL, 0); 1496 } else { 1497 /* if we've chdir'd, rebuild the path name */ 1498 if (strcmp(curdir, objdir) && *fname != '/') { 1499 size_t plen = strlen(curdir) + strlen(fname) + 2; 1500 if (len < plen) 1501 path = bmake_realloc(path, len = 2 * plen); 1502 1503 (void)snprintf(path, len, "%s/%s", curdir, fname); 1504 fd = open(path, O_RDONLY); 1505 if (fd != -1) { 1506 fname = path; 1507 goto found; 1508 } 1509 1510 /* If curdir failed, try objdir (ala .depend) */ 1511 plen = strlen(objdir) + strlen(fname) + 2; 1512 if (len < plen) 1513 path = bmake_realloc(path, len = 2 * plen); 1514 (void)snprintf(path, len, "%s/%s", objdir, fname); 1515 fd = open(path, O_RDONLY); 1516 if (fd != -1) { 1517 fname = path; 1518 goto found; 1519 } 1520 } else { 1521 fd = open(fname, O_RDONLY); 1522 if (fd != -1) 1523 goto found; 1524 } 1525 /* look in -I and system include directories. */ 1526 name = Dir_FindFile(fname, parseIncPath); 1527 if (!name) 1528 name = Dir_FindFile(fname, 1529 Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath); 1530 if (!name || (fd = open(name, O_RDONLY)) == -1) { 1531 free(name); 1532 free(path); 1533 return(-1); 1534 } 1535 fname = name; 1536 /* 1537 * set the MAKEFILE variable desired by System V fans -- the 1538 * placement of the setting here means it gets set to the last 1539 * makefile specified, as it is set by SysV make. 1540 */ 1541 found: 1542 if (!doing_depend) 1543 Var_Set("MAKEFILE", fname, VAR_INTERNAL, 0); 1544 Parse_File(fname, fd); 1545 } 1546 free(path); 1547 return(0); 1548 } 1549 1550 1551 1552 /*- 1553 * Cmd_Exec -- 1554 * Execute the command in cmd, and return the output of that command 1555 * in a string. 1556 * 1557 * Results: 1558 * A string containing the output of the command, or the empty string 1559 * If errnum is not NULL, it contains the reason for the command failure 1560 * 1561 * Side Effects: 1562 * The string must be freed by the caller. 1563 */ 1564 char * 1565 Cmd_Exec(const char *cmd, const char **errnum) 1566 { 1567 const char *args[4]; /* Args for invoking the shell */ 1568 int fds[2]; /* Pipe streams */ 1569 int cpid; /* Child PID */ 1570 int pid; /* PID from wait() */ 1571 char *res; /* result */ 1572 WAIT_T status; /* command exit status */ 1573 Buffer buf; /* buffer to store the result */ 1574 char *cp; 1575 int cc; /* bytes read, or -1 */ 1576 int savederr; /* saved errno */ 1577 1578 1579 *errnum = NULL; 1580 1581 if (!shellName) 1582 Shell_Init(); 1583 /* 1584 * Set up arguments for shell 1585 */ 1586 args[0] = shellName; 1587 args[1] = "-c"; 1588 args[2] = cmd; 1589 args[3] = NULL; 1590 1591 /* 1592 * Open a pipe for fetching its output 1593 */ 1594 if (pipe(fds) == -1) { 1595 *errnum = "Couldn't create pipe for \"%s\""; 1596 goto bad; 1597 } 1598 1599 /* 1600 * Fork 1601 */ 1602 switch (cpid = vFork()) { 1603 case 0: 1604 /* 1605 * Close input side of pipe 1606 */ 1607 (void)close(fds[0]); 1608 1609 /* 1610 * Duplicate the output stream to the shell's output, then 1611 * shut the extra thing down. Note we don't fetch the error 1612 * stream...why not? Why? 1613 */ 1614 (void)dup2(fds[1], 1); 1615 (void)close(fds[1]); 1616 1617 Var_ExportVars(); 1618 1619 (void)execv(shellPath, UNCONST(args)); 1620 _exit(1); 1621 /*NOTREACHED*/ 1622 1623 case -1: 1624 *errnum = "Couldn't exec \"%s\""; 1625 goto bad; 1626 1627 default: 1628 /* 1629 * No need for the writing half 1630 */ 1631 (void)close(fds[1]); 1632 1633 savederr = 0; 1634 Buf_Init(&buf, 0); 1635 1636 do { 1637 char result[BUFSIZ]; 1638 cc = read(fds[0], result, sizeof(result)); 1639 if (cc > 0) 1640 Buf_AddBytes(&buf, cc, result); 1641 } 1642 while (cc > 0 || (cc == -1 && errno == EINTR)); 1643 if (cc == -1) 1644 savederr = errno; 1645 1646 /* 1647 * Close the input side of the pipe. 1648 */ 1649 (void)close(fds[0]); 1650 1651 /* 1652 * Wait for the process to exit. 1653 */ 1654 while(((pid = waitpid(cpid, &status, 0)) != cpid) && (pid >= 0)) { 1655 JobReapChild(pid, status, FALSE); 1656 continue; 1657 } 1658 cc = Buf_Size(&buf); 1659 res = Buf_Destroy(&buf, FALSE); 1660 1661 if (savederr != 0) 1662 *errnum = "Couldn't read shell's output for \"%s\""; 1663 1664 if (WIFSIGNALED(status)) 1665 *errnum = "\"%s\" exited on a signal"; 1666 else if (WEXITSTATUS(status) != 0) 1667 *errnum = "\"%s\" returned non-zero status"; 1668 1669 /* 1670 * Null-terminate the result, convert newlines to spaces and 1671 * install it in the variable. 1672 */ 1673 res[cc] = '\0'; 1674 cp = &res[cc]; 1675 1676 if (cc > 0 && *--cp == '\n') { 1677 /* 1678 * A final newline is just stripped 1679 */ 1680 *cp-- = '\0'; 1681 } 1682 while (cp >= res) { 1683 if (*cp == '\n') { 1684 *cp = ' '; 1685 } 1686 cp--; 1687 } 1688 break; 1689 } 1690 return res; 1691 bad: 1692 res = bmake_malloc(1); 1693 *res = '\0'; 1694 return res; 1695 } 1696 1697 /*- 1698 * Error -- 1699 * Print an error message given its format. 1700 * 1701 * Results: 1702 * None. 1703 * 1704 * Side Effects: 1705 * The message is printed. 1706 */ 1707 /* VARARGS */ 1708 void 1709 Error(const char *fmt, ...) 1710 { 1711 va_list ap; 1712 FILE *err_file; 1713 1714 err_file = debug_file; 1715 if (err_file == stdout) 1716 err_file = stderr; 1717 (void)fflush(stdout); 1718 for (;;) { 1719 va_start(ap, fmt); 1720 fprintf(err_file, "%s: ", progname); 1721 (void)vfprintf(err_file, fmt, ap); 1722 va_end(ap); 1723 (void)fprintf(err_file, "\n"); 1724 (void)fflush(err_file); 1725 if (err_file == stderr) 1726 break; 1727 err_file = stderr; 1728 } 1729 } 1730 1731 /*- 1732 * Fatal -- 1733 * Produce a Fatal error message. If jobs are running, waits for them 1734 * to finish. 1735 * 1736 * Results: 1737 * None 1738 * 1739 * Side Effects: 1740 * The program exits 1741 */ 1742 /* VARARGS */ 1743 void 1744 Fatal(const char *fmt, ...) 1745 { 1746 va_list ap; 1747 1748 va_start(ap, fmt); 1749 if (jobsRunning) 1750 Job_Wait(); 1751 1752 (void)fflush(stdout); 1753 (void)vfprintf(stderr, fmt, ap); 1754 va_end(ap); 1755 (void)fprintf(stderr, "\n"); 1756 (void)fflush(stderr); 1757 1758 PrintOnError(NULL, NULL); 1759 1760 if (DEBUG(GRAPH2) || DEBUG(GRAPH3)) 1761 Targ_PrintGraph(2); 1762 Trace_Log(MAKEERROR, 0); 1763 exit(2); /* Not 1 so -q can distinguish error */ 1764 } 1765 1766 /* 1767 * Punt -- 1768 * Major exception once jobs are being created. Kills all jobs, prints 1769 * a message and exits. 1770 * 1771 * Results: 1772 * None 1773 * 1774 * Side Effects: 1775 * All children are killed indiscriminately and the program Lib_Exits 1776 */ 1777 /* VARARGS */ 1778 void 1779 Punt(const char *fmt, ...) 1780 { 1781 va_list ap; 1782 1783 va_start(ap, fmt); 1784 (void)fflush(stdout); 1785 (void)fprintf(stderr, "%s: ", progname); 1786 (void)vfprintf(stderr, fmt, ap); 1787 va_end(ap); 1788 (void)fprintf(stderr, "\n"); 1789 (void)fflush(stderr); 1790 1791 PrintOnError(NULL, NULL); 1792 1793 DieHorribly(); 1794 } 1795 1796 /*- 1797 * DieHorribly -- 1798 * Exit without giving a message. 1799 * 1800 * Results: 1801 * None 1802 * 1803 * Side Effects: 1804 * A big one... 1805 */ 1806 void 1807 DieHorribly(void) 1808 { 1809 if (jobsRunning) 1810 Job_AbortAll(); 1811 if (DEBUG(GRAPH2)) 1812 Targ_PrintGraph(2); 1813 Trace_Log(MAKEERROR, 0); 1814 exit(2); /* Not 1, so -q can distinguish error */ 1815 } 1816 1817 /* 1818 * Finish -- 1819 * Called when aborting due to errors in child shell to signal 1820 * abnormal exit. 1821 * 1822 * Results: 1823 * None 1824 * 1825 * Side Effects: 1826 * The program exits 1827 */ 1828 void 1829 Finish(int errors) 1830 /* number of errors encountered in Make_Make */ 1831 { 1832 Fatal("%d error%s", errors, errors == 1 ? "" : "s"); 1833 } 1834 1835 /* 1836 * eunlink -- 1837 * Remove a file carefully, avoiding directories. 1838 */ 1839 int 1840 eunlink(const char *file) 1841 { 1842 struct stat st; 1843 1844 if (lstat(file, &st) == -1) 1845 return -1; 1846 1847 if (S_ISDIR(st.st_mode)) { 1848 errno = EISDIR; 1849 return -1; 1850 } 1851 return unlink(file); 1852 } 1853 1854 /* 1855 * execError -- 1856 * Print why exec failed, avoiding stdio. 1857 */ 1858 void 1859 execError(const char *af, const char *av) 1860 { 1861 #ifdef USE_IOVEC 1862 int i = 0; 1863 struct iovec iov[8]; 1864 #define IOADD(s) \ 1865 (void)(iov[i].iov_base = UNCONST(s), \ 1866 iov[i].iov_len = strlen(iov[i].iov_base), \ 1867 i++) 1868 #else 1869 #define IOADD(s) (void)write(2, s, strlen(s)) 1870 #endif 1871 1872 IOADD(progname); 1873 IOADD(": "); 1874 IOADD(af); 1875 IOADD("("); 1876 IOADD(av); 1877 IOADD(") failed ("); 1878 IOADD(strerror(errno)); 1879 IOADD(")\n"); 1880 1881 #ifdef USE_IOVEC 1882 while (writev(2, iov, 8) == -1 && errno == EAGAIN) 1883 continue; 1884 #endif 1885 } 1886 1887 /* 1888 * usage -- 1889 * exit with usage message 1890 */ 1891 static void 1892 usage(void) 1893 { 1894 char *p; 1895 if ((p = strchr(progname, '[')) != NULL) 1896 *p = '\0'; 1897 1898 (void)fprintf(stderr, 1899 "usage: %s [-BeikNnqrstWwX] \n\ 1900 [-C directory] [-D variable] [-d flags] [-f makefile]\n\ 1901 [-I directory] [-J private] [-j max_jobs] [-m directory] [-T file]\n\ 1902 [-V variable] [variable=value] [target ...]\n", progname); 1903 exit(2); 1904 } 1905 1906 1907 /* 1908 * realpath(3) can get expensive, cache results... 1909 */ 1910 char * 1911 cached_realpath(const char *pathname, char *resolved) 1912 { 1913 static GNode *cache; 1914 char *rp, *cp; 1915 1916 if (!pathname || !pathname[0]) 1917 return NULL; 1918 1919 if (!cache) { 1920 cache = Targ_NewGN("Realpath"); 1921 #ifndef DEBUG_REALPATH_CACHE 1922 cache->flags = INTERNAL; 1923 #endif 1924 } 1925 1926 if ((rp = Var_Value(pathname, cache, &cp)) != NULL) { 1927 /* a hit */ 1928 strlcpy(resolved, rp, MAXPATHLEN); 1929 } else if ((rp = realpath(pathname, resolved)) != NULL) { 1930 Var_Set(pathname, rp, cache, 0); 1931 } 1932 free(cp); 1933 return rp ? resolved : NULL; 1934 } 1935 1936 int 1937 PrintAddr(void *a, void *b) 1938 { 1939 printf("%lx ", (unsigned long) a); 1940 return b ? 0 : 0; 1941 } 1942 1943 1944 static int 1945 addErrorCMD(void *cmdp, void *gnp MAKE_ATTR_UNUSED) 1946 { 1947 if (cmdp == NULL) 1948 return 1; /* stop */ 1949 Var_Append(".ERROR_CMD", cmdp, VAR_GLOBAL); 1950 return 0; 1951 } 1952 1953 void 1954 PrintOnError(GNode *gn, const char *s) 1955 { 1956 static GNode *en = NULL; 1957 char tmp[64]; 1958 char *cp; 1959 1960 if (s) 1961 printf("%s", s); 1962 1963 printf("\n%s: stopped in %s\n", progname, curdir); 1964 1965 if (en) 1966 return; /* we've been here! */ 1967 if (gn) { 1968 /* 1969 * We can print this even if there is no .ERROR target. 1970 */ 1971 Var_Set(".ERROR_TARGET", gn->name, VAR_GLOBAL, 0); 1972 Var_Delete(".ERROR_CMD", VAR_GLOBAL); 1973 Lst_ForEach(gn->commands, addErrorCMD, gn); 1974 } 1975 strncpy(tmp, "${MAKE_PRINT_VAR_ON_ERROR:@v@$v='${$v}'\n@}", 1976 sizeof(tmp) - 1); 1977 cp = Var_Subst(NULL, tmp, VAR_GLOBAL, VARF_WANTRES); 1978 if (cp) { 1979 if (*cp) 1980 printf("%s", cp); 1981 free(cp); 1982 } 1983 fflush(stdout); 1984 1985 /* 1986 * Finally, see if there is a .ERROR target, and run it if so. 1987 */ 1988 en = Targ_FindNode(".ERROR", TARG_NOCREATE); 1989 if (en) { 1990 en->type |= OP_SPECIAL; 1991 Compat_Make(en, en); 1992 } 1993 } 1994 1995 void 1996 Main_ExportMAKEFLAGS(Boolean first) 1997 { 1998 static int once = 1; 1999 char tmp[64]; 2000 char *s; 2001 2002 if (once != first) 2003 return; 2004 once = 0; 2005 2006 strncpy(tmp, "${.MAKEFLAGS} ${.MAKEOVERRIDES:O:u:@v@$v=${$v:Q}@}", 2007 sizeof(tmp)); 2008 s = Var_Subst(NULL, tmp, VAR_CMD, VARF_WANTRES); 2009 if (s && *s) { 2010 #ifdef POSIX 2011 setenv("MAKEFLAGS", s, 1); 2012 #else 2013 setenv("MAKE", s, 1); 2014 #endif 2015 } 2016 } 2017 2018 char * 2019 getTmpdir(void) 2020 { 2021 static char *tmpdir = NULL; 2022 2023 if (!tmpdir) { 2024 struct stat st; 2025 2026 /* 2027 * Honor $TMPDIR but only if it is valid. 2028 * Ensure it ends with /. 2029 */ 2030 tmpdir = Var_Subst(NULL, "${TMPDIR:tA:U" _PATH_TMP "}/", VAR_GLOBAL, 2031 VARF_WANTRES); 2032 if (stat(tmpdir, &st) < 0 || !S_ISDIR(st.st_mode)) { 2033 free(tmpdir); 2034 tmpdir = bmake_strdup(_PATH_TMP); 2035 } 2036 } 2037 return tmpdir; 2038 } 2039 2040 /* 2041 * Create and open a temp file using "pattern". 2042 * If "fnamep" is provided set it to a copy of the filename created. 2043 * Otherwise unlink the file once open. 2044 */ 2045 int 2046 mkTempFile(const char *pattern, char **fnamep) 2047 { 2048 static char *tmpdir = NULL; 2049 char tfile[MAXPATHLEN]; 2050 int fd; 2051 2052 if (!pattern) 2053 pattern = TMPPAT; 2054 if (!tmpdir) 2055 tmpdir = getTmpdir(); 2056 if (pattern[0] == '/') { 2057 snprintf(tfile, sizeof(tfile), "%s", pattern); 2058 } else { 2059 snprintf(tfile, sizeof(tfile), "%s%s", tmpdir, pattern); 2060 } 2061 if ((fd = mkstemp(tfile)) < 0) 2062 Punt("Could not create temporary file %s: %s", tfile, strerror(errno)); 2063 if (fnamep) { 2064 *fnamep = bmake_strdup(tfile); 2065 } else { 2066 unlink(tfile); /* we just want the descriptor */ 2067 } 2068 return fd; 2069 } 2070 2071 /* 2072 * Convert a string representation of a boolean. 2073 * Anything that looks like "No", "False", "Off", "0" etc, 2074 * is FALSE, otherwise TRUE. 2075 */ 2076 Boolean 2077 s2Boolean(const char *s, Boolean bf) 2078 { 2079 if (s) { 2080 switch(*s) { 2081 case '\0': /* not set - the default wins */ 2082 break; 2083 case '0': 2084 case 'F': 2085 case 'f': 2086 case 'N': 2087 case 'n': 2088 bf = FALSE; 2089 break; 2090 case 'O': 2091 case 'o': 2092 switch (s[1]) { 2093 case 'F': 2094 case 'f': 2095 bf = FALSE; 2096 break; 2097 default: 2098 bf = TRUE; 2099 break; 2100 } 2101 break; 2102 default: 2103 bf = TRUE; 2104 break; 2105 } 2106 } 2107 return (bf); 2108 } 2109 2110 /* 2111 * Return a Boolean based on setting of a knob. 2112 * 2113 * If the knob is not set, the supplied default is the return value. 2114 * If set, anything that looks or smells like "No", "False", "Off", "0" etc, 2115 * is FALSE, otherwise TRUE. 2116 */ 2117 Boolean 2118 getBoolean(const char *name, Boolean bf) 2119 { 2120 char tmp[64]; 2121 char *cp; 2122 2123 if (snprintf(tmp, sizeof(tmp), "${%s:U:tl}", name) < (int)(sizeof(tmp))) { 2124 cp = Var_Subst(NULL, tmp, VAR_GLOBAL, VARF_WANTRES); 2125 2126 if (cp) { 2127 bf = s2Boolean(cp, bf); 2128 free(cp); 2129 } 2130 } 2131 return (bf); 2132 } 2133