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 (argvalue[0] == '/' && 462 stat(argvalue, &sa) != -1 && 463 stat(curdir, &sb) != -1 && 464 sa.st_ino == sb.st_ino && 465 sa.st_dev == sb.st_dev) 466 strncpy(curdir, argvalue, MAXPATHLEN); 467 ignorePWD = TRUE; 468 break; 469 case 'D': 470 if (argvalue == NULL || argvalue[0] == 0) goto noarg; 471 Var_Set(argvalue, "1", VAR_GLOBAL, 0); 472 Var_Append(MAKEFLAGS, "-D", VAR_GLOBAL); 473 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 474 break; 475 case 'I': 476 if (argvalue == NULL) goto noarg; 477 Parse_AddIncludeDir(argvalue); 478 Var_Append(MAKEFLAGS, "-I", VAR_GLOBAL); 479 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 480 break; 481 case 'J': 482 if (argvalue == NULL) goto noarg; 483 if (sscanf(argvalue, "%d,%d", &jp_0, &jp_1) != 2) { 484 (void)fprintf(stderr, 485 "%s: internal error -- J option malformed (%s)\n", 486 progname, argvalue); 487 usage(); 488 } 489 if ((fcntl(jp_0, F_GETFD, 0) < 0) || 490 (fcntl(jp_1, F_GETFD, 0) < 0)) { 491 #if 0 492 (void)fprintf(stderr, 493 "%s: ###### warning -- J descriptors were closed!\n", 494 progname); 495 exit(2); 496 #endif 497 jp_0 = -1; 498 jp_1 = -1; 499 compatMake = TRUE; 500 } else { 501 Var_Append(MAKEFLAGS, "-J", VAR_GLOBAL); 502 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 503 jobServer = TRUE; 504 } 505 break; 506 case 'N': 507 noExecute = TRUE; 508 noRecursiveExecute = TRUE; 509 Var_Append(MAKEFLAGS, "-N", VAR_GLOBAL); 510 break; 511 case 'S': 512 keepgoing = FALSE; 513 Var_Append(MAKEFLAGS, "-S", VAR_GLOBAL); 514 break; 515 case 'T': 516 if (argvalue == NULL) goto noarg; 517 tracefile = bmake_strdup(argvalue); 518 Var_Append(MAKEFLAGS, "-T", VAR_GLOBAL); 519 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 520 break; 521 case 'V': 522 if (argvalue == NULL) goto noarg; 523 printVars = TRUE; 524 (void)Lst_AtEnd(variables, argvalue); 525 Var_Append(MAKEFLAGS, "-V", VAR_GLOBAL); 526 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 527 break; 528 case 'W': 529 parseWarnFatal = TRUE; 530 break; 531 case 'X': 532 varNoExportEnv = TRUE; 533 Var_Append(MAKEFLAGS, "-X", VAR_GLOBAL); 534 break; 535 case 'd': 536 if (argvalue == NULL) goto noarg; 537 /* If '-d-opts' don't pass to children */ 538 if (argvalue[0] == '-') 539 argvalue++; 540 else { 541 Var_Append(MAKEFLAGS, "-d", VAR_GLOBAL); 542 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 543 } 544 parse_debug_options(argvalue); 545 break; 546 case 'e': 547 checkEnvFirst = TRUE; 548 Var_Append(MAKEFLAGS, "-e", VAR_GLOBAL); 549 break; 550 case 'f': 551 if (argvalue == NULL) goto noarg; 552 (void)Lst_AtEnd(makefiles, argvalue); 553 break; 554 case 'i': 555 ignoreErrors = TRUE; 556 Var_Append(MAKEFLAGS, "-i", VAR_GLOBAL); 557 break; 558 case 'j': 559 if (argvalue == NULL) goto noarg; 560 forceJobs = TRUE; 561 maxJobs = strtol(argvalue, &p, 0); 562 if (*p != '\0' || maxJobs < 1) { 563 (void)fprintf(stderr, "%s: illegal argument to -j -- must be positive integer!\n", 564 progname); 565 exit(1); 566 } 567 Var_Append(MAKEFLAGS, "-j", VAR_GLOBAL); 568 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 569 Var_Set(".MAKE.JOBS", argvalue, VAR_GLOBAL, 0); 570 maxJobTokens = maxJobs; 571 break; 572 case 'k': 573 keepgoing = TRUE; 574 Var_Append(MAKEFLAGS, "-k", VAR_GLOBAL); 575 break; 576 case 'm': 577 if (argvalue == NULL) goto noarg; 578 /* look for magic parent directory search string */ 579 if (strncmp(".../", argvalue, 4) == 0) { 580 if (!Dir_FindHereOrAbove(curdir, argvalue+4, 581 found_path, sizeof(found_path))) 582 break; /* nothing doing */ 583 (void)Dir_AddDir(sysIncPath, found_path); 584 } else { 585 (void)Dir_AddDir(sysIncPath, argvalue); 586 } 587 Var_Append(MAKEFLAGS, "-m", VAR_GLOBAL); 588 Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL); 589 break; 590 case 'n': 591 noExecute = TRUE; 592 Var_Append(MAKEFLAGS, "-n", VAR_GLOBAL); 593 break; 594 case 'q': 595 queryFlag = TRUE; 596 /* Kind of nonsensical, wot? */ 597 Var_Append(MAKEFLAGS, "-q", VAR_GLOBAL); 598 break; 599 case 'r': 600 noBuiltins = TRUE; 601 Var_Append(MAKEFLAGS, "-r", VAR_GLOBAL); 602 break; 603 case 's': 604 beSilent = TRUE; 605 Var_Append(MAKEFLAGS, "-s", VAR_GLOBAL); 606 break; 607 case 't': 608 touchFlag = TRUE; 609 Var_Append(MAKEFLAGS, "-t", VAR_GLOBAL); 610 break; 611 case 'w': 612 enterFlag = TRUE; 613 Var_Append(MAKEFLAGS, "-w", VAR_GLOBAL); 614 break; 615 case '-': 616 dashDash = TRUE; 617 break; 618 default: 619 case '?': 620 #ifndef MAKE_NATIVE 621 fprintf(stderr, "getopt(%s) -> %d (%c)\n", 622 OPTFLAGS, c, c); 623 #endif 624 usage(); 625 } 626 argv += arginc; 627 argc -= arginc; 628 } 629 630 oldVars = TRUE; 631 632 /* 633 * See if the rest of the arguments are variable assignments and 634 * perform them if so. Else take them to be targets and stuff them 635 * on the end of the "create" list. 636 */ 637 for (; argc > 1; ++argv, --argc) 638 if (Parse_IsVar(argv[1])) { 639 Parse_DoVar(argv[1], VAR_CMD); 640 } else { 641 if (!*argv[1]) 642 Punt("illegal (null) argument."); 643 if (*argv[1] == '-' && !dashDash) 644 goto rearg; 645 (void)Lst_AtEnd(create, bmake_strdup(argv[1])); 646 } 647 648 return; 649 noarg: 650 (void)fprintf(stderr, "%s: option requires an argument -- %c\n", 651 progname, c); 652 usage(); 653 } 654 655 /*- 656 * Main_ParseArgLine -- 657 * Used by the parse module when a .MFLAGS or .MAKEFLAGS target 658 * is encountered and by main() when reading the .MAKEFLAGS envariable. 659 * Takes a line of arguments and breaks it into its 660 * component words and passes those words and the number of them to the 661 * MainParseArgs function. 662 * The line should have all its leading whitespace removed. 663 * 664 * Input: 665 * line Line to fracture 666 * 667 * Results: 668 * None 669 * 670 * Side Effects: 671 * Only those that come from the various arguments. 672 */ 673 void 674 Main_ParseArgLine(const char *line) 675 { 676 char **argv; /* Manufactured argument vector */ 677 int argc; /* Number of arguments in argv */ 678 char *args; /* Space used by the args */ 679 char *buf, *p1; 680 char *argv0 = Var_Value(".MAKE", VAR_GLOBAL, &p1); 681 size_t len; 682 683 if (line == NULL) 684 return; 685 for (; *line == ' '; ++line) 686 continue; 687 if (!*line) 688 return; 689 690 #ifndef POSIX 691 { 692 /* 693 * $MAKE may simply be naming the make(1) binary 694 */ 695 char *cp; 696 697 if (!(cp = strrchr(line, '/'))) 698 cp = line; 699 if ((cp = strstr(cp, "make")) && 700 strcmp(cp, "make") == 0) 701 return; 702 } 703 #endif 704 buf = bmake_malloc(len = strlen(line) + strlen(argv0) + 2); 705 (void)snprintf(buf, len, "%s %s", argv0, line); 706 free(p1); 707 708 argv = brk_string(buf, &argc, TRUE, &args); 709 if (argv == NULL) { 710 Error("Unterminated quoted string [%s]", buf); 711 free(buf); 712 return; 713 } 714 free(buf); 715 MainParseArgs(argc, argv); 716 717 free(args); 718 free(argv); 719 } 720 721 Boolean 722 Main_SetObjdir(const char *fmt, ...) 723 { 724 struct stat sb; 725 char *p, *path; 726 char buf[MAXPATHLEN + 1], pbuf[MAXPATHLEN + 1]; 727 Boolean rc = FALSE; 728 va_list ap; 729 730 va_start(ap, fmt); 731 vsnprintf(path = pbuf, MAXPATHLEN, fmt, ap); 732 va_end(ap); 733 734 /* expand variable substitutions */ 735 if (strchr(path, '$') != 0) { 736 snprintf(buf, MAXPATHLEN, "%s", path); 737 path = p = Var_Subst(NULL, buf, VAR_GLOBAL, VARF_WANTRES); 738 } else 739 p = NULL; 740 741 if (path[0] != '/') { 742 snprintf(buf, MAXPATHLEN, "%s/%s", curdir, path); 743 path = buf; 744 } 745 746 /* look for the directory and try to chdir there */ 747 if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) { 748 if (chdir(path)) { 749 (void)fprintf(stderr, "make warning: %s: %s.\n", 750 path, strerror(errno)); 751 } else { 752 strncpy(objdir, path, MAXPATHLEN); 753 Var_Set(".OBJDIR", objdir, VAR_GLOBAL, 0); 754 setenv("PWD", objdir, 1); 755 Dir_InitDot(); 756 rc = TRUE; 757 if (enterFlag && strcmp(objdir, curdir) != 0) 758 enterFlagObj = TRUE; 759 } 760 } 761 762 free(p); 763 return rc; 764 } 765 766 static Boolean 767 Main_SetVarObjdir(const char *var, const char *suffix) 768 { 769 char *p1, *path; 770 if ((path = Var_Value(var, VAR_CMD, &p1)) == NULL) 771 return FALSE; 772 773 (void)Main_SetObjdir("%s%s", path, suffix); 774 free(p1); 775 return TRUE; 776 } 777 778 /*- 779 * ReadAllMakefiles -- 780 * wrapper around ReadMakefile() to read all. 781 * 782 * Results: 783 * TRUE if ok, FALSE on error 784 */ 785 static int 786 ReadAllMakefiles(const void *p, const void *q) 787 { 788 return (ReadMakefile(p, q) == 0); 789 } 790 791 int 792 str2Lst_Append(Lst lp, char *str, const char *sep) 793 { 794 char *cp; 795 int n; 796 797 if (!sep) 798 sep = " \t"; 799 800 for (n = 0, cp = strtok(str, sep); cp; cp = strtok(NULL, sep)) { 801 (void)Lst_AtEnd(lp, cp); 802 n++; 803 } 804 return (n); 805 } 806 807 #ifdef SIGINFO 808 /*ARGSUSED*/ 809 static void 810 siginfo(int signo MAKE_ATTR_UNUSED) 811 { 812 char dir[MAXPATHLEN]; 813 char str[2 * MAXPATHLEN]; 814 int len; 815 if (getcwd(dir, sizeof(dir)) == NULL) 816 return; 817 len = snprintf(str, sizeof(str), "%s: Working in: %s\n", progname, dir); 818 if (len > 0) 819 (void)write(STDERR_FILENO, str, (size_t)len); 820 } 821 #endif 822 823 /* 824 * Allow makefiles some control over the mode we run in. 825 */ 826 void 827 MakeMode(const char *mode) 828 { 829 char *mp = NULL; 830 831 if (!mode) 832 mode = mp = Var_Subst(NULL, "${" MAKE_MODE ":tl}", 833 VAR_GLOBAL, VARF_WANTRES); 834 835 if (mode && *mode) { 836 if (strstr(mode, "compat")) { 837 compatMake = TRUE; 838 forceJobs = FALSE; 839 } 840 #if USE_META 841 if (strstr(mode, "meta")) 842 meta_mode_init(mode); 843 #endif 844 } 845 846 free(mp); 847 } 848 849 /*- 850 * main -- 851 * The main function, for obvious reasons. Initializes variables 852 * and a few modules, then parses the arguments give it in the 853 * environment and on the command line. Reads the system makefile 854 * followed by either Makefile, makefile or the file given by the 855 * -f argument. Sets the .MAKEFLAGS PMake variable based on all the 856 * flags it has received by then uses either the Make or the Compat 857 * module to create the initial list of targets. 858 * 859 * Results: 860 * If -q was given, exits -1 if anything was out-of-date. Else it exits 861 * 0. 862 * 863 * Side Effects: 864 * The program exits when done. Targets are created. etc. etc. etc. 865 */ 866 int 867 main(int argc, char **argv) 868 { 869 Lst targs; /* target nodes to create -- passed to Make_Init */ 870 Boolean outOfDate = FALSE; /* FALSE if all targets up to date */ 871 struct stat sb, sa; 872 char *p1, *path; 873 char mdpath[MAXPATHLEN]; 874 #ifdef FORCE_MACHINE 875 const char *machine = FORCE_MACHINE; 876 #else 877 const char *machine = getenv("MACHINE"); 878 #endif 879 const char *machine_arch = getenv("MACHINE_ARCH"); 880 char *syspath = getenv("MAKESYSPATH"); 881 Lst sysMkPath; /* Path of sys.mk */ 882 char *cp = NULL, *start; 883 /* avoid faults on read-only strings */ 884 static char defsyspath[] = _PATH_DEFSYSPATH; 885 char found_path[MAXPATHLEN + 1]; /* for searching for sys.mk */ 886 struct timeval rightnow; /* to initialize random seed */ 887 struct utsname utsname; 888 889 /* default to writing debug to stderr */ 890 debug_file = stderr; 891 892 #ifdef SIGINFO 893 (void)bmake_signal(SIGINFO, siginfo); 894 #endif 895 /* 896 * Set the seed to produce a different random sequence 897 * on each program execution. 898 */ 899 gettimeofday(&rightnow, NULL); 900 srandom(rightnow.tv_sec + rightnow.tv_usec); 901 902 if ((progname = strrchr(argv[0], '/')) != NULL) 903 progname++; 904 else 905 progname = argv[0]; 906 #if defined(MAKE_NATIVE) || (defined(HAVE_SETRLIMIT) && defined(RLIMIT_NOFILE)) 907 /* 908 * get rid of resource limit on file descriptors 909 */ 910 { 911 struct rlimit rl; 912 if (getrlimit(RLIMIT_NOFILE, &rl) != -1 && 913 rl.rlim_cur != rl.rlim_max) { 914 rl.rlim_cur = rl.rlim_max; 915 (void)setrlimit(RLIMIT_NOFILE, &rl); 916 } 917 } 918 #endif 919 920 if (uname(&utsname) == -1) { 921 (void)fprintf(stderr, "%s: uname failed (%s).\n", progname, 922 strerror(errno)); 923 exit(2); 924 } 925 926 /* 927 * Get the name of this type of MACHINE from utsname 928 * so we can share an executable for similar machines. 929 * (i.e. m68k: amiga hp300, mac68k, sun3, ...) 930 * 931 * Note that both MACHINE and MACHINE_ARCH are decided at 932 * run-time. 933 */ 934 if (!machine) { 935 #ifdef MAKE_NATIVE 936 machine = utsname.machine; 937 #else 938 #ifdef MAKE_MACHINE 939 machine = MAKE_MACHINE; 940 #else 941 machine = "unknown"; 942 #endif 943 #endif 944 } 945 946 if (!machine_arch) { 947 #if defined(MAKE_NATIVE) && defined(HAVE_SYSCTL) && defined(CTL_HW) && defined(HW_MACHINE_ARCH) 948 static char machine_arch_buf[sizeof(utsname.machine)]; 949 int mib[2] = { CTL_HW, HW_MACHINE_ARCH }; 950 size_t len = sizeof(machine_arch_buf); 951 952 if (sysctl(mib, __arraycount(mib), machine_arch_buf, 953 &len, NULL, 0) < 0) { 954 (void)fprintf(stderr, "%s: sysctl failed (%s).\n", progname, 955 strerror(errno)); 956 exit(2); 957 } 958 959 machine_arch = machine_arch_buf; 960 #else 961 #ifndef MACHINE_ARCH 962 #ifdef MAKE_MACHINE_ARCH 963 machine_arch = MAKE_MACHINE_ARCH; 964 #else 965 machine_arch = "unknown"; 966 #endif 967 #else 968 machine_arch = MACHINE_ARCH; 969 #endif 970 #endif 971 } 972 973 myPid = getpid(); /* remember this for vFork() */ 974 975 /* 976 * Just in case MAKEOBJDIR wants us to do something tricky. 977 */ 978 Var_Init(); /* Initialize the lists of variables for 979 * parsing arguments */ 980 Var_Set(".MAKE.OS", utsname.sysname, VAR_GLOBAL, 0); 981 Var_Set("MACHINE", machine, VAR_GLOBAL, 0); 982 Var_Set("MACHINE_ARCH", machine_arch, VAR_GLOBAL, 0); 983 #ifdef MAKE_VERSION 984 Var_Set("MAKE_VERSION", MAKE_VERSION, VAR_GLOBAL, 0); 985 #endif 986 Var_Set(".newline", "\n", VAR_GLOBAL, 0); /* handy for :@ loops */ 987 /* 988 * This is the traditional preference for makefiles. 989 */ 990 #ifndef MAKEFILE_PREFERENCE_LIST 991 # define MAKEFILE_PREFERENCE_LIST "makefile Makefile" 992 #endif 993 Var_Set(MAKEFILE_PREFERENCE, MAKEFILE_PREFERENCE_LIST, 994 VAR_GLOBAL, 0); 995 Var_Set(MAKE_DEPENDFILE, ".depend", VAR_GLOBAL, 0); 996 997 create = Lst_Init(FALSE); 998 makefiles = Lst_Init(FALSE); 999 printVars = FALSE; 1000 debugVflag = FALSE; 1001 variables = Lst_Init(FALSE); 1002 beSilent = FALSE; /* Print commands as executed */ 1003 ignoreErrors = FALSE; /* Pay attention to non-zero returns */ 1004 noExecute = FALSE; /* Execute all commands */ 1005 noRecursiveExecute = FALSE; /* Execute all .MAKE targets */ 1006 keepgoing = FALSE; /* Stop on error */ 1007 allPrecious = FALSE; /* Remove targets when interrupted */ 1008 deleteOnError = FALSE; /* Historical default behavior */ 1009 queryFlag = FALSE; /* This is not just a check-run */ 1010 noBuiltins = FALSE; /* Read the built-in rules */ 1011 touchFlag = FALSE; /* Actually update targets */ 1012 debug = 0; /* No debug verbosity, please. */ 1013 jobsRunning = FALSE; 1014 1015 maxJobs = DEFMAXLOCAL; /* Set default local max concurrency */ 1016 maxJobTokens = maxJobs; 1017 compatMake = FALSE; /* No compat mode */ 1018 ignorePWD = FALSE; 1019 1020 /* 1021 * Initialize the parsing, directory and variable modules to prepare 1022 * for the reading of inclusion paths and variable settings on the 1023 * command line 1024 */ 1025 1026 /* 1027 * Initialize various variables. 1028 * MAKE also gets this name, for compatibility 1029 * .MAKEFLAGS gets set to the empty string just in case. 1030 * MFLAGS also gets initialized empty, for compatibility. 1031 */ 1032 Parse_Init(); 1033 if (argv[0][0] == '/' || strchr(argv[0], '/') == NULL) { 1034 /* 1035 * Leave alone if it is an absolute path, or if it does 1036 * not contain a '/' in which case we need to find it in 1037 * the path, like execvp(3) and the shells do. 1038 */ 1039 p1 = argv[0]; 1040 } else { 1041 /* 1042 * A relative path, canonicalize it. 1043 */ 1044 p1 = cached_realpath(argv[0], mdpath); 1045 if (!p1 || *p1 != '/' || stat(p1, &sb) < 0) { 1046 p1 = argv[0]; /* realpath failed */ 1047 } 1048 } 1049 Var_Set("MAKE", p1, VAR_GLOBAL, 0); 1050 Var_Set(".MAKE", p1, VAR_GLOBAL, 0); 1051 Var_Set(MAKEFLAGS, "", VAR_GLOBAL, 0); 1052 Var_Set(MAKEOVERRIDES, "", VAR_GLOBAL, 0); 1053 Var_Set("MFLAGS", "", VAR_GLOBAL, 0); 1054 Var_Set(".ALLTARGETS", "", VAR_GLOBAL, 0); 1055 /* some makefiles need to know this */ 1056 Var_Set(MAKE_LEVEL ".ENV", MAKE_LEVEL_ENV, VAR_CMD, 0); 1057 1058 /* 1059 * Set some other useful macros 1060 */ 1061 { 1062 char tmp[64], *ep; 1063 1064 makelevel = ((ep = getenv(MAKE_LEVEL_ENV)) && *ep) ? atoi(ep) : 0; 1065 if (makelevel < 0) 1066 makelevel = 0; 1067 snprintf(tmp, sizeof(tmp), "%d", makelevel); 1068 Var_Set(MAKE_LEVEL, tmp, VAR_GLOBAL, 0); 1069 snprintf(tmp, sizeof(tmp), "%u", myPid); 1070 Var_Set(".MAKE.PID", tmp, VAR_GLOBAL, 0); 1071 snprintf(tmp, sizeof(tmp), "%u", getppid()); 1072 Var_Set(".MAKE.PPID", tmp, VAR_GLOBAL, 0); 1073 } 1074 if (makelevel > 0) { 1075 char pn[1024]; 1076 snprintf(pn, sizeof(pn), "%s[%d]", progname, makelevel); 1077 progname = bmake_strdup(pn); 1078 } 1079 1080 #ifdef USE_META 1081 meta_init(); 1082 #endif 1083 Dir_Init(NULL); /* Dir_* safe to call from MainParseArgs */ 1084 1085 /* 1086 * First snag any flags out of the MAKE environment variable. 1087 * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's 1088 * in a different format). 1089 */ 1090 #ifdef POSIX 1091 p1 = explode(getenv("MAKEFLAGS")); 1092 Main_ParseArgLine(p1); 1093 free(p1); 1094 #else 1095 Main_ParseArgLine(getenv("MAKE")); 1096 #endif 1097 1098 /* 1099 * Find where we are (now). 1100 * We take care of PWD for the automounter below... 1101 */ 1102 if (getcwd(curdir, MAXPATHLEN) == NULL) { 1103 (void)fprintf(stderr, "%s: getcwd: %s.\n", 1104 progname, strerror(errno)); 1105 exit(2); 1106 } 1107 1108 MainParseArgs(argc, argv); 1109 1110 if (enterFlag) 1111 printf("%s: Entering directory `%s'\n", progname, curdir); 1112 1113 /* 1114 * Verify that cwd is sane. 1115 */ 1116 if (stat(curdir, &sa) == -1) { 1117 (void)fprintf(stderr, "%s: %s: %s.\n", 1118 progname, curdir, strerror(errno)); 1119 exit(2); 1120 } 1121 1122 /* 1123 * All this code is so that we know where we are when we start up 1124 * on a different machine with pmake. 1125 * Overriding getcwd() with $PWD totally breaks MAKEOBJDIRPREFIX 1126 * since the value of curdir can vary depending on how we got 1127 * here. Ie sitting at a shell prompt (shell that provides $PWD) 1128 * or via subdir.mk in which case its likely a shell which does 1129 * not provide it. 1130 * So, to stop it breaking this case only, we ignore PWD if 1131 * MAKEOBJDIRPREFIX is set or MAKEOBJDIR contains a transform. 1132 */ 1133 #ifndef NO_PWD_OVERRIDE 1134 if (!ignorePWD) { 1135 char *pwd, *ptmp1 = NULL, *ptmp2 = NULL; 1136 1137 if ((pwd = getenv("PWD")) != NULL && 1138 Var_Value("MAKEOBJDIRPREFIX", VAR_CMD, &ptmp1) == NULL) { 1139 const char *makeobjdir = Var_Value("MAKEOBJDIR", 1140 VAR_CMD, &ptmp2); 1141 1142 if (makeobjdir == NULL || !strchr(makeobjdir, '$')) { 1143 if (stat(pwd, &sb) == 0 && 1144 sa.st_ino == sb.st_ino && 1145 sa.st_dev == sb.st_dev) 1146 (void)strncpy(curdir, pwd, MAXPATHLEN); 1147 } 1148 } 1149 free(ptmp1); 1150 free(ptmp2); 1151 } 1152 #endif 1153 Var_Set(".CURDIR", curdir, VAR_GLOBAL, 0); 1154 1155 /* 1156 * Find the .OBJDIR. If MAKEOBJDIRPREFIX, or failing that, 1157 * MAKEOBJDIR is set in the environment, try only that value 1158 * and fall back to .CURDIR if it does not exist. 1159 * 1160 * Otherwise, try _PATH_OBJDIR.MACHINE-MACHINE_ARCH, _PATH_OBJDIR.MACHINE, 1161 * and * finally _PATH_OBJDIRPREFIX`pwd`, in that order. If none 1162 * of these paths exist, just use .CURDIR. 1163 */ 1164 Dir_Init(curdir); 1165 (void)Main_SetObjdir("%s", curdir); 1166 1167 if (!Main_SetVarObjdir("MAKEOBJDIRPREFIX", curdir) && 1168 !Main_SetVarObjdir("MAKEOBJDIR", "") && 1169 !Main_SetObjdir("%s.%s-%s", _PATH_OBJDIR, machine, machine_arch) && 1170 !Main_SetObjdir("%s.%s", _PATH_OBJDIR, machine) && 1171 !Main_SetObjdir("%s", _PATH_OBJDIR)) 1172 (void)Main_SetObjdir("%s%s", _PATH_OBJDIRPREFIX, curdir); 1173 1174 /* 1175 * Initialize archive, target and suffix modules in preparation for 1176 * parsing the makefile(s) 1177 */ 1178 Arch_Init(); 1179 Targ_Init(); 1180 Suff_Init(); 1181 Trace_Init(tracefile); 1182 1183 DEFAULT = NULL; 1184 (void)time(&now); 1185 1186 Trace_Log(MAKESTART, NULL); 1187 1188 /* 1189 * Set up the .TARGETS variable to contain the list of targets to be 1190 * created. If none specified, make the variable empty -- the parser 1191 * will fill the thing in with the default or .MAIN target. 1192 */ 1193 if (!Lst_IsEmpty(create)) { 1194 LstNode ln; 1195 1196 for (ln = Lst_First(create); ln != NULL; 1197 ln = Lst_Succ(ln)) { 1198 char *name = (char *)Lst_Datum(ln); 1199 1200 Var_Append(".TARGETS", name, VAR_GLOBAL); 1201 } 1202 } else 1203 Var_Set(".TARGETS", "", VAR_GLOBAL, 0); 1204 1205 1206 /* 1207 * If no user-supplied system path was given (through the -m option) 1208 * add the directories from the DEFSYSPATH (more than one may be given 1209 * as dir1:...:dirn) to the system include path. 1210 */ 1211 if (syspath == NULL || *syspath == '\0') 1212 syspath = defsyspath; 1213 else 1214 syspath = bmake_strdup(syspath); 1215 1216 for (start = syspath; *start != '\0'; start = cp) { 1217 for (cp = start; *cp != '\0' && *cp != ':'; cp++) 1218 continue; 1219 if (*cp == ':') { 1220 *cp++ = '\0'; 1221 } 1222 /* look for magic parent directory search string */ 1223 if (strncmp(".../", start, 4) != 0) { 1224 (void)Dir_AddDir(defIncPath, start); 1225 } else { 1226 if (Dir_FindHereOrAbove(curdir, start+4, 1227 found_path, sizeof(found_path))) { 1228 (void)Dir_AddDir(defIncPath, found_path); 1229 } 1230 } 1231 } 1232 if (syspath != defsyspath) 1233 free(syspath); 1234 1235 /* 1236 * Read in the built-in rules first, followed by the specified 1237 * makefile, if it was (makefile != NULL), or the default 1238 * makefile and Makefile, in that order, if it wasn't. 1239 */ 1240 if (!noBuiltins) { 1241 LstNode ln; 1242 1243 sysMkPath = Lst_Init(FALSE); 1244 Dir_Expand(_PATH_DEFSYSMK, 1245 Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath, 1246 sysMkPath); 1247 if (Lst_IsEmpty(sysMkPath)) 1248 Fatal("%s: no system rules (%s).", progname, 1249 _PATH_DEFSYSMK); 1250 ln = Lst_Find(sysMkPath, NULL, ReadMakefile); 1251 if (ln == NULL) 1252 Fatal("%s: cannot open %s.", progname, 1253 (char *)Lst_Datum(ln)); 1254 } 1255 1256 if (!Lst_IsEmpty(makefiles)) { 1257 LstNode ln; 1258 1259 ln = Lst_Find(makefiles, NULL, ReadAllMakefiles); 1260 if (ln != NULL) 1261 Fatal("%s: cannot open %s.", progname, 1262 (char *)Lst_Datum(ln)); 1263 } else { 1264 p1 = Var_Subst(NULL, "${" MAKEFILE_PREFERENCE "}", 1265 VAR_CMD, VARF_WANTRES); 1266 if (p1) { 1267 (void)str2Lst_Append(makefiles, p1, NULL); 1268 (void)Lst_Find(makefiles, NULL, ReadMakefile); 1269 free(p1); 1270 } 1271 } 1272 1273 /* In particular suppress .depend for '-r -V .OBJDIR -f /dev/null' */ 1274 if (!noBuiltins || !printVars) { 1275 makeDependfile = Var_Subst(NULL, "${.MAKE.DEPENDFILE:T}", 1276 VAR_CMD, VARF_WANTRES); 1277 doing_depend = TRUE; 1278 (void)ReadMakefile(makeDependfile, NULL); 1279 doing_depend = FALSE; 1280 } 1281 1282 if (enterFlagObj) 1283 printf("%s: Entering directory `%s'\n", progname, objdir); 1284 1285 MakeMode(NULL); 1286 1287 Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL, &p1), VAR_GLOBAL); 1288 free(p1); 1289 1290 if (!forceJobs && !compatMake && 1291 Var_Exists(".MAKE.JOBS", VAR_GLOBAL)) { 1292 char *value; 1293 int n; 1294 1295 value = Var_Subst(NULL, "${.MAKE.JOBS}", VAR_GLOBAL, VARF_WANTRES); 1296 n = strtol(value, NULL, 0); 1297 if (n < 1) { 1298 (void)fprintf(stderr, "%s: illegal value for .MAKE.JOBS -- must be positive integer!\n", 1299 progname); 1300 exit(1); 1301 } 1302 if (n != maxJobs) { 1303 Var_Append(MAKEFLAGS, "-j", VAR_GLOBAL); 1304 Var_Append(MAKEFLAGS, value, VAR_GLOBAL); 1305 } 1306 maxJobs = n; 1307 maxJobTokens = maxJobs; 1308 forceJobs = TRUE; 1309 free(value); 1310 } 1311 1312 /* 1313 * Be compatible if user did not specify -j and did not explicitly 1314 * turned compatibility on 1315 */ 1316 if (!compatMake && !forceJobs) { 1317 compatMake = TRUE; 1318 } 1319 1320 if (!compatMake) 1321 Job_ServerStart(maxJobTokens, jp_0, jp_1); 1322 if (DEBUG(JOB)) 1323 fprintf(debug_file, "job_pipe %d %d, maxjobs %d, tokens %d, compat %d\n", 1324 jp_0, jp_1, maxJobs, maxJobTokens, compatMake); 1325 1326 if (!printVars) 1327 Main_ExportMAKEFLAGS(TRUE); /* initial export */ 1328 1329 /* 1330 * For compatibility, look at the directories in the VPATH variable 1331 * and add them to the search path, if the variable is defined. The 1332 * variable's value is in the same format as the PATH envariable, i.e. 1333 * <directory>:<directory>:<directory>... 1334 */ 1335 if (Var_Exists("VPATH", VAR_CMD)) { 1336 char *vpath, savec; 1337 /* 1338 * GCC stores string constants in read-only memory, but 1339 * Var_Subst will want to write this thing, so store it 1340 * in an array 1341 */ 1342 static char VPATH[] = "${VPATH}"; 1343 1344 vpath = Var_Subst(NULL, VPATH, VAR_CMD, VARF_WANTRES); 1345 path = vpath; 1346 do { 1347 /* skip to end of directory */ 1348 for (cp = path; *cp != ':' && *cp != '\0'; cp++) 1349 continue; 1350 /* Save terminator character so know when to stop */ 1351 savec = *cp; 1352 *cp = '\0'; 1353 /* Add directory to search path */ 1354 (void)Dir_AddDir(dirSearchPath, path); 1355 *cp = savec; 1356 path = cp + 1; 1357 } while (savec == ':'); 1358 free(vpath); 1359 } 1360 1361 /* 1362 * Now that all search paths have been read for suffixes et al, it's 1363 * time to add the default search path to their lists... 1364 */ 1365 Suff_DoPaths(); 1366 1367 /* 1368 * Propagate attributes through :: dependency lists. 1369 */ 1370 Targ_Propagate(); 1371 1372 /* print the initial graph, if the user requested it */ 1373 if (DEBUG(GRAPH1)) 1374 Targ_PrintGraph(1); 1375 1376 /* print the values of any variables requested by the user */ 1377 if (printVars) { 1378 LstNode ln; 1379 Boolean expandVars; 1380 1381 if (debugVflag) 1382 expandVars = FALSE; 1383 else 1384 expandVars = getBoolean(".MAKE.EXPAND_VARIABLES", FALSE); 1385 for (ln = Lst_First(variables); ln != NULL; 1386 ln = Lst_Succ(ln)) { 1387 char *var = (char *)Lst_Datum(ln); 1388 char *value; 1389 1390 if (strchr(var, '$')) { 1391 value = p1 = Var_Subst(NULL, var, VAR_GLOBAL, 1392 VARF_WANTRES); 1393 } else if (expandVars) { 1394 char tmp[128]; 1395 1396 if (snprintf(tmp, sizeof(tmp), "${%s}", var) >= (int)(sizeof(tmp))) 1397 Fatal("%s: variable name too big: %s", 1398 progname, var); 1399 value = p1 = Var_Subst(NULL, tmp, VAR_GLOBAL, 1400 VARF_WANTRES); 1401 } else { 1402 value = Var_Value(var, VAR_GLOBAL, &p1); 1403 } 1404 printf("%s\n", value ? value : ""); 1405 free(p1); 1406 } 1407 } else { 1408 /* 1409 * Have now read the entire graph and need to make a list of 1410 * targets to create. If none was given on the command line, 1411 * we consult the parsing module to find the main target(s) 1412 * to create. 1413 */ 1414 if (Lst_IsEmpty(create)) 1415 targs = Parse_MainName(); 1416 else 1417 targs = Targ_FindList(create, TARG_CREATE); 1418 1419 if (!compatMake) { 1420 /* 1421 * Initialize job module before traversing the graph 1422 * now that any .BEGIN and .END targets have been read. 1423 * This is done only if the -q flag wasn't given 1424 * (to prevent the .BEGIN from being executed should 1425 * it exist). 1426 */ 1427 if (!queryFlag) { 1428 Job_Init(); 1429 jobsRunning = TRUE; 1430 } 1431 1432 /* Traverse the graph, checking on all the targets */ 1433 outOfDate = Make_Run(targs); 1434 } else { 1435 /* 1436 * Compat_Init will take care of creating all the 1437 * targets as well as initializing the module. 1438 */ 1439 Compat_Run(targs); 1440 } 1441 } 1442 1443 #ifdef CLEANUP 1444 Lst_Destroy(targs, NULL); 1445 Lst_Destroy(variables, NULL); 1446 Lst_Destroy(makefiles, NULL); 1447 Lst_Destroy(create, (FreeProc *)free); 1448 #endif 1449 1450 /* print the graph now it's been processed if the user requested it */ 1451 if (DEBUG(GRAPH2)) 1452 Targ_PrintGraph(2); 1453 1454 Trace_Log(MAKEEND, 0); 1455 1456 if (enterFlagObj) 1457 printf("%s: Leaving directory `%s'\n", progname, objdir); 1458 if (enterFlag) 1459 printf("%s: Leaving directory `%s'\n", progname, curdir); 1460 1461 #ifdef USE_META 1462 meta_finish(); 1463 #endif 1464 Suff_End(); 1465 Targ_End(); 1466 Arch_End(); 1467 Var_End(); 1468 Parse_End(); 1469 Dir_End(); 1470 Job_End(); 1471 Trace_End(); 1472 1473 return outOfDate ? 1 : 0; 1474 } 1475 1476 /*- 1477 * ReadMakefile -- 1478 * Open and parse the given makefile. 1479 * 1480 * Results: 1481 * 0 if ok. -1 if couldn't open file. 1482 * 1483 * Side Effects: 1484 * lots 1485 */ 1486 static int 1487 ReadMakefile(const void *p, const void *q MAKE_ATTR_UNUSED) 1488 { 1489 const char *fname = p; /* makefile to read */ 1490 int fd; 1491 size_t len = MAXPATHLEN; 1492 char *name, *path = bmake_malloc(len); 1493 1494 if (!strcmp(fname, "-")) { 1495 Parse_File(NULL /*stdin*/, -1); 1496 Var_Set("MAKEFILE", "", VAR_INTERNAL, 0); 1497 } else { 1498 /* if we've chdir'd, rebuild the path name */ 1499 if (strcmp(curdir, objdir) && *fname != '/') { 1500 size_t plen = strlen(curdir) + strlen(fname) + 2; 1501 if (len < plen) 1502 path = bmake_realloc(path, len = 2 * plen); 1503 1504 (void)snprintf(path, len, "%s/%s", curdir, fname); 1505 fd = open(path, O_RDONLY); 1506 if (fd != -1) { 1507 fname = path; 1508 goto found; 1509 } 1510 1511 /* If curdir failed, try objdir (ala .depend) */ 1512 plen = strlen(objdir) + strlen(fname) + 2; 1513 if (len < plen) 1514 path = bmake_realloc(path, len = 2 * plen); 1515 (void)snprintf(path, len, "%s/%s", objdir, fname); 1516 fd = open(path, O_RDONLY); 1517 if (fd != -1) { 1518 fname = path; 1519 goto found; 1520 } 1521 } else { 1522 fd = open(fname, O_RDONLY); 1523 if (fd != -1) 1524 goto found; 1525 } 1526 /* look in -I and system include directories. */ 1527 name = Dir_FindFile(fname, parseIncPath); 1528 if (!name) 1529 name = Dir_FindFile(fname, 1530 Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath); 1531 if (!name || (fd = open(name, O_RDONLY)) == -1) { 1532 free(name); 1533 free(path); 1534 return(-1); 1535 } 1536 fname = name; 1537 /* 1538 * set the MAKEFILE variable desired by System V fans -- the 1539 * placement of the setting here means it gets set to the last 1540 * makefile specified, as it is set by SysV make. 1541 */ 1542 found: 1543 if (!doing_depend) 1544 Var_Set("MAKEFILE", fname, VAR_INTERNAL, 0); 1545 Parse_File(fname, fd); 1546 } 1547 free(path); 1548 return(0); 1549 } 1550 1551 1552 1553 /*- 1554 * Cmd_Exec -- 1555 * Execute the command in cmd, and return the output of that command 1556 * in a string. 1557 * 1558 * Results: 1559 * A string containing the output of the command, or the empty string 1560 * If errnum is not NULL, it contains the reason for the command failure 1561 * 1562 * Side Effects: 1563 * The string must be freed by the caller. 1564 */ 1565 char * 1566 Cmd_Exec(const char *cmd, const char **errnum) 1567 { 1568 const char *args[4]; /* Args for invoking the shell */ 1569 int fds[2]; /* Pipe streams */ 1570 int cpid; /* Child PID */ 1571 int pid; /* PID from wait() */ 1572 char *res; /* result */ 1573 WAIT_T status; /* command exit status */ 1574 Buffer buf; /* buffer to store the result */ 1575 char *cp; 1576 int cc; /* bytes read, or -1 */ 1577 int savederr; /* saved errno */ 1578 1579 1580 *errnum = NULL; 1581 1582 if (!shellName) 1583 Shell_Init(); 1584 /* 1585 * Set up arguments for shell 1586 */ 1587 args[0] = shellName; 1588 args[1] = "-c"; 1589 args[2] = cmd; 1590 args[3] = NULL; 1591 1592 /* 1593 * Open a pipe for fetching its output 1594 */ 1595 if (pipe(fds) == -1) { 1596 *errnum = "Couldn't create pipe for \"%s\""; 1597 goto bad; 1598 } 1599 1600 /* 1601 * Fork 1602 */ 1603 switch (cpid = vFork()) { 1604 case 0: 1605 /* 1606 * Close input side of pipe 1607 */ 1608 (void)close(fds[0]); 1609 1610 /* 1611 * Duplicate the output stream to the shell's output, then 1612 * shut the extra thing down. Note we don't fetch the error 1613 * stream...why not? Why? 1614 */ 1615 (void)dup2(fds[1], 1); 1616 (void)close(fds[1]); 1617 1618 Var_ExportVars(); 1619 1620 (void)execv(shellPath, UNCONST(args)); 1621 _exit(1); 1622 /*NOTREACHED*/ 1623 1624 case -1: 1625 *errnum = "Couldn't exec \"%s\""; 1626 goto bad; 1627 1628 default: 1629 /* 1630 * No need for the writing half 1631 */ 1632 (void)close(fds[1]); 1633 1634 savederr = 0; 1635 Buf_Init(&buf, 0); 1636 1637 do { 1638 char result[BUFSIZ]; 1639 cc = read(fds[0], result, sizeof(result)); 1640 if (cc > 0) 1641 Buf_AddBytes(&buf, cc, result); 1642 } 1643 while (cc > 0 || (cc == -1 && errno == EINTR)); 1644 if (cc == -1) 1645 savederr = errno; 1646 1647 /* 1648 * Close the input side of the pipe. 1649 */ 1650 (void)close(fds[0]); 1651 1652 /* 1653 * Wait for the process to exit. 1654 */ 1655 while(((pid = waitpid(cpid, &status, 0)) != cpid) && (pid >= 0)) { 1656 JobReapChild(pid, status, FALSE); 1657 continue; 1658 } 1659 cc = Buf_Size(&buf); 1660 res = Buf_Destroy(&buf, FALSE); 1661 1662 if (savederr != 0) 1663 *errnum = "Couldn't read shell's output for \"%s\""; 1664 1665 if (WIFSIGNALED(status)) 1666 *errnum = "\"%s\" exited on a signal"; 1667 else if (WEXITSTATUS(status) != 0) 1668 *errnum = "\"%s\" returned non-zero status"; 1669 1670 /* 1671 * Null-terminate the result, convert newlines to spaces and 1672 * install it in the variable. 1673 */ 1674 res[cc] = '\0'; 1675 cp = &res[cc]; 1676 1677 if (cc > 0 && *--cp == '\n') { 1678 /* 1679 * A final newline is just stripped 1680 */ 1681 *cp-- = '\0'; 1682 } 1683 while (cp >= res) { 1684 if (*cp == '\n') { 1685 *cp = ' '; 1686 } 1687 cp--; 1688 } 1689 break; 1690 } 1691 return res; 1692 bad: 1693 res = bmake_malloc(1); 1694 *res = '\0'; 1695 return res; 1696 } 1697 1698 /*- 1699 * Error -- 1700 * Print an error message given its format. 1701 * 1702 * Results: 1703 * None. 1704 * 1705 * Side Effects: 1706 * The message is printed. 1707 */ 1708 /* VARARGS */ 1709 void 1710 Error(const char *fmt, ...) 1711 { 1712 va_list ap; 1713 FILE *err_file; 1714 1715 err_file = debug_file; 1716 if (err_file == stdout) 1717 err_file = stderr; 1718 (void)fflush(stdout); 1719 for (;;) { 1720 va_start(ap, fmt); 1721 fprintf(err_file, "%s: ", progname); 1722 (void)vfprintf(err_file, fmt, ap); 1723 va_end(ap); 1724 (void)fprintf(err_file, "\n"); 1725 (void)fflush(err_file); 1726 if (err_file == stderr) 1727 break; 1728 err_file = stderr; 1729 } 1730 } 1731 1732 /*- 1733 * Fatal -- 1734 * Produce a Fatal error message. If jobs are running, waits for them 1735 * to finish. 1736 * 1737 * Results: 1738 * None 1739 * 1740 * Side Effects: 1741 * The program exits 1742 */ 1743 /* VARARGS */ 1744 void 1745 Fatal(const char *fmt, ...) 1746 { 1747 va_list ap; 1748 1749 va_start(ap, fmt); 1750 if (jobsRunning) 1751 Job_Wait(); 1752 1753 (void)fflush(stdout); 1754 (void)vfprintf(stderr, fmt, ap); 1755 va_end(ap); 1756 (void)fprintf(stderr, "\n"); 1757 (void)fflush(stderr); 1758 1759 PrintOnError(NULL, NULL); 1760 1761 if (DEBUG(GRAPH2) || DEBUG(GRAPH3)) 1762 Targ_PrintGraph(2); 1763 Trace_Log(MAKEERROR, 0); 1764 exit(2); /* Not 1 so -q can distinguish error */ 1765 } 1766 1767 /* 1768 * Punt -- 1769 * Major exception once jobs are being created. Kills all jobs, prints 1770 * a message and exits. 1771 * 1772 * Results: 1773 * None 1774 * 1775 * Side Effects: 1776 * All children are killed indiscriminately and the program Lib_Exits 1777 */ 1778 /* VARARGS */ 1779 void 1780 Punt(const char *fmt, ...) 1781 { 1782 va_list ap; 1783 1784 va_start(ap, fmt); 1785 (void)fflush(stdout); 1786 (void)fprintf(stderr, "%s: ", progname); 1787 (void)vfprintf(stderr, fmt, ap); 1788 va_end(ap); 1789 (void)fprintf(stderr, "\n"); 1790 (void)fflush(stderr); 1791 1792 PrintOnError(NULL, NULL); 1793 1794 DieHorribly(); 1795 } 1796 1797 /*- 1798 * DieHorribly -- 1799 * Exit without giving a message. 1800 * 1801 * Results: 1802 * None 1803 * 1804 * Side Effects: 1805 * A big one... 1806 */ 1807 void 1808 DieHorribly(void) 1809 { 1810 if (jobsRunning) 1811 Job_AbortAll(); 1812 if (DEBUG(GRAPH2)) 1813 Targ_PrintGraph(2); 1814 Trace_Log(MAKEERROR, 0); 1815 exit(2); /* Not 1, so -q can distinguish error */ 1816 } 1817 1818 /* 1819 * Finish -- 1820 * Called when aborting due to errors in child shell to signal 1821 * abnormal exit. 1822 * 1823 * Results: 1824 * None 1825 * 1826 * Side Effects: 1827 * The program exits 1828 */ 1829 void 1830 Finish(int errors) 1831 /* number of errors encountered in Make_Make */ 1832 { 1833 Fatal("%d error%s", errors, errors == 1 ? "" : "s"); 1834 } 1835 1836 /* 1837 * eunlink -- 1838 * Remove a file carefully, avoiding directories. 1839 */ 1840 int 1841 eunlink(const char *file) 1842 { 1843 struct stat st; 1844 1845 if (lstat(file, &st) == -1) 1846 return -1; 1847 1848 if (S_ISDIR(st.st_mode)) { 1849 errno = EISDIR; 1850 return -1; 1851 } 1852 return unlink(file); 1853 } 1854 1855 /* 1856 * execError -- 1857 * Print why exec failed, avoiding stdio. 1858 */ 1859 void 1860 execError(const char *af, const char *av) 1861 { 1862 #ifdef USE_IOVEC 1863 int i = 0; 1864 struct iovec iov[8]; 1865 #define IOADD(s) \ 1866 (void)(iov[i].iov_base = UNCONST(s), \ 1867 iov[i].iov_len = strlen(iov[i].iov_base), \ 1868 i++) 1869 #else 1870 #define IOADD(s) (void)write(2, s, strlen(s)) 1871 #endif 1872 1873 IOADD(progname); 1874 IOADD(": "); 1875 IOADD(af); 1876 IOADD("("); 1877 IOADD(av); 1878 IOADD(") failed ("); 1879 IOADD(strerror(errno)); 1880 IOADD(")\n"); 1881 1882 #ifdef USE_IOVEC 1883 while (writev(2, iov, 8) == -1 && errno == EAGAIN) 1884 continue; 1885 #endif 1886 } 1887 1888 /* 1889 * usage -- 1890 * exit with usage message 1891 */ 1892 static void 1893 usage(void) 1894 { 1895 char *p; 1896 if ((p = strchr(progname, '[')) != NULL) 1897 *p = '\0'; 1898 1899 (void)fprintf(stderr, 1900 "usage: %s [-BeikNnqrstWwX] \n\ 1901 [-C directory] [-D variable] [-d flags] [-f makefile]\n\ 1902 [-I directory] [-J private] [-j max_jobs] [-m directory] [-T file]\n\ 1903 [-V variable] [variable=value] [target ...]\n", progname); 1904 exit(2); 1905 } 1906 1907 1908 /* 1909 * realpath(3) can get expensive, cache results... 1910 */ 1911 char * 1912 cached_realpath(const char *pathname, char *resolved) 1913 { 1914 static GNode *cache; 1915 char *rp, *cp; 1916 1917 if (!pathname || !pathname[0]) 1918 return NULL; 1919 1920 if (!cache) { 1921 cache = Targ_NewGN("Realpath"); 1922 #ifndef DEBUG_REALPATH_CACHE 1923 cache->flags = INTERNAL; 1924 #endif 1925 } 1926 1927 if ((rp = Var_Value(pathname, cache, &cp)) != NULL) { 1928 /* a hit */ 1929 strlcpy(resolved, rp, MAXPATHLEN); 1930 } else if ((rp = realpath(pathname, resolved)) != NULL) { 1931 Var_Set(pathname, rp, cache, 0); 1932 } 1933 free(cp); 1934 return rp ? resolved : NULL; 1935 } 1936 1937 int 1938 PrintAddr(void *a, void *b) 1939 { 1940 printf("%lx ", (unsigned long) a); 1941 return b ? 0 : 0; 1942 } 1943 1944 1945 static int 1946 addErrorCMD(void *cmdp, void *gnp MAKE_ATTR_UNUSED) 1947 { 1948 if (cmdp == NULL) 1949 return 1; /* stop */ 1950 Var_Append(".ERROR_CMD", cmdp, VAR_GLOBAL); 1951 return 0; 1952 } 1953 1954 void 1955 PrintOnError(GNode *gn, const char *s) 1956 { 1957 static GNode *en = NULL; 1958 char tmp[64]; 1959 char *cp; 1960 1961 if (s) 1962 printf("%s", s); 1963 1964 printf("\n%s: stopped in %s\n", progname, curdir); 1965 1966 if (en) 1967 return; /* we've been here! */ 1968 if (gn) { 1969 /* 1970 * We can print this even if there is no .ERROR target. 1971 */ 1972 Var_Set(".ERROR_TARGET", gn->name, VAR_GLOBAL, 0); 1973 Var_Delete(".ERROR_CMD", VAR_GLOBAL); 1974 Lst_ForEach(gn->commands, addErrorCMD, gn); 1975 } 1976 strncpy(tmp, "${MAKE_PRINT_VAR_ON_ERROR:@v@$v='${$v}'\n@}", 1977 sizeof(tmp) - 1); 1978 cp = Var_Subst(NULL, tmp, VAR_GLOBAL, VARF_WANTRES); 1979 if (cp) { 1980 if (*cp) 1981 printf("%s", cp); 1982 free(cp); 1983 } 1984 fflush(stdout); 1985 1986 /* 1987 * Finally, see if there is a .ERROR target, and run it if so. 1988 */ 1989 en = Targ_FindNode(".ERROR", TARG_NOCREATE); 1990 if (en) { 1991 en->type |= OP_SPECIAL; 1992 Compat_Make(en, en); 1993 } 1994 } 1995 1996 void 1997 Main_ExportMAKEFLAGS(Boolean first) 1998 { 1999 static int once = 1; 2000 char tmp[64]; 2001 char *s; 2002 2003 if (once != first) 2004 return; 2005 once = 0; 2006 2007 strncpy(tmp, "${.MAKEFLAGS} ${.MAKEOVERRIDES:O:u:@v@$v=${$v:Q}@}", 2008 sizeof(tmp)); 2009 s = Var_Subst(NULL, tmp, VAR_CMD, VARF_WANTRES); 2010 if (s && *s) { 2011 #ifdef POSIX 2012 setenv("MAKEFLAGS", s, 1); 2013 #else 2014 setenv("MAKE", s, 1); 2015 #endif 2016 } 2017 } 2018 2019 char * 2020 getTmpdir(void) 2021 { 2022 static char *tmpdir = NULL; 2023 2024 if (!tmpdir) { 2025 struct stat st; 2026 2027 /* 2028 * Honor $TMPDIR but only if it is valid. 2029 * Ensure it ends with /. 2030 */ 2031 tmpdir = Var_Subst(NULL, "${TMPDIR:tA:U" _PATH_TMP "}/", VAR_GLOBAL, 2032 VARF_WANTRES); 2033 if (stat(tmpdir, &st) < 0 || !S_ISDIR(st.st_mode)) { 2034 free(tmpdir); 2035 tmpdir = bmake_strdup(_PATH_TMP); 2036 } 2037 } 2038 return tmpdir; 2039 } 2040 2041 /* 2042 * Create and open a temp file using "pattern". 2043 * If "fnamep" is provided set it to a copy of the filename created. 2044 * Otherwise unlink the file once open. 2045 */ 2046 int 2047 mkTempFile(const char *pattern, char **fnamep) 2048 { 2049 static char *tmpdir = NULL; 2050 char tfile[MAXPATHLEN]; 2051 int fd; 2052 2053 if (!pattern) 2054 pattern = TMPPAT; 2055 if (!tmpdir) 2056 tmpdir = getTmpdir(); 2057 if (pattern[0] == '/') { 2058 snprintf(tfile, sizeof(tfile), "%s", pattern); 2059 } else { 2060 snprintf(tfile, sizeof(tfile), "%s%s", tmpdir, pattern); 2061 } 2062 if ((fd = mkstemp(tfile)) < 0) 2063 Punt("Could not create temporary file %s: %s", tfile, strerror(errno)); 2064 if (fnamep) { 2065 *fnamep = bmake_strdup(tfile); 2066 } else { 2067 unlink(tfile); /* we just want the descriptor */ 2068 } 2069 return fd; 2070 } 2071 2072 /* 2073 * Convert a string representation of a boolean. 2074 * Anything that looks like "No", "False", "Off", "0" etc, 2075 * is FALSE, otherwise TRUE. 2076 */ 2077 Boolean 2078 s2Boolean(const char *s, Boolean bf) 2079 { 2080 if (s) { 2081 switch(*s) { 2082 case '\0': /* not set - the default wins */ 2083 break; 2084 case '0': 2085 case 'F': 2086 case 'f': 2087 case 'N': 2088 case 'n': 2089 bf = FALSE; 2090 break; 2091 case 'O': 2092 case 'o': 2093 switch (s[1]) { 2094 case 'F': 2095 case 'f': 2096 bf = FALSE; 2097 break; 2098 default: 2099 bf = TRUE; 2100 break; 2101 } 2102 break; 2103 default: 2104 bf = TRUE; 2105 break; 2106 } 2107 } 2108 return (bf); 2109 } 2110 2111 /* 2112 * Return a Boolean based on setting of a knob. 2113 * 2114 * If the knob is not set, the supplied default is the return value. 2115 * If set, anything that looks or smells like "No", "False", "Off", "0" etc, 2116 * is FALSE, otherwise TRUE. 2117 */ 2118 Boolean 2119 getBoolean(const char *name, Boolean bf) 2120 { 2121 char tmp[64]; 2122 char *cp; 2123 2124 if (snprintf(tmp, sizeof(tmp), "${%s:U:tl}", name) < (int)(sizeof(tmp))) { 2125 cp = Var_Subst(NULL, tmp, VAR_GLOBAL, VARF_WANTRES); 2126 2127 if (cp) { 2128 bf = s2Boolean(cp, bf); 2129 free(cp); 2130 } 2131 } 2132 return (bf); 2133 } 2134