main.c revision 1.602
1 /* $NetBSD: main.c,v 1.602 2023/11/02 05:40:49 rillig 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 /* 72 * The main file for this entire program. Exit routines etc. reside here. 73 * 74 * Utility functions defined in this file: 75 * 76 * Main_ParseArgLine 77 * Parse and process command line arguments from a 78 * single string. Used to implement the special targets 79 * .MFLAGS and .MAKEFLAGS. 80 * 81 * Error Print a tagged error message. 82 * 83 * Fatal Print an error message and exit. 84 * 85 * Punt Abort all jobs and exit with a message. 86 * 87 * Finish Finish things up by printing the number of errors 88 * that occurred, and exit. 89 */ 90 91 #include <sys/types.h> 92 #include <sys/time.h> 93 #include <sys/param.h> 94 #include <sys/resource.h> 95 #include <sys/stat.h> 96 #ifdef MAKE_NATIVE 97 #include <sys/sysctl.h> 98 #endif 99 #include <sys/utsname.h> 100 #include <sys/wait.h> 101 102 #include <errno.h> 103 #include <signal.h> 104 #include <stdarg.h> 105 #include <time.h> 106 107 #include "make.h" 108 #include "dir.h" 109 #include "job.h" 110 #include "pathnames.h" 111 #include "trace.h" 112 113 /* "@(#)main.c 8.3 (Berkeley) 3/19/94" */ 114 MAKE_RCSID("$NetBSD: main.c,v 1.602 2023/11/02 05:40:49 rillig Exp $"); 115 #if defined(MAKE_NATIVE) && !defined(lint) 116 __COPYRIGHT("@(#) Copyright (c) 1988, 1989, 1990, 1993 " 117 "The Regents of the University of California. " 118 "All rights reserved."); 119 #endif 120 121 CmdOpts opts; 122 time_t now; /* Time at start of make */ 123 GNode *defaultNode; /* .DEFAULT node */ 124 bool allPrecious; /* .PRECIOUS given on a line by itself */ 125 bool deleteOnError; /* .DELETE_ON_ERROR: set */ 126 127 static int maxJobTokens; /* -j argument */ 128 static bool enterFlagObj; /* -w and objdir != srcdir */ 129 130 static int jp_0 = -1, jp_1 = -1; /* ends of parent job pipe */ 131 bool doing_depend; /* Set while reading .depend */ 132 static bool jobsRunning; /* true if the jobs might be running */ 133 static const char *tracefile; 134 static bool ReadMakefile(const char *); 135 static void purge_relative_cached_realpaths(void); 136 137 static bool ignorePWD; /* if we use -C, PWD is meaningless */ 138 static char objdir[MAXPATHLEN + 1]; /* where we chdir'ed to */ 139 char curdir[MAXPATHLEN + 1]; /* Startup directory */ 140 const char *progname; 141 char *makeDependfile; 142 pid_t myPid; 143 int makelevel; 144 145 bool forceJobs = false; 146 static int main_errors = 0; 147 static HashTable cached_realpaths; 148 149 /* 150 * For compatibility with the POSIX version of MAKEFLAGS that includes 151 * all the options without '-', convert 'flags' to '-f -l -a -g -s '. 152 */ 153 static char * 154 explode(const char *flags) 155 { 156 char *exploded, *ep; 157 const char *p; 158 159 if (flags == NULL) 160 return NULL; 161 162 for (p = flags; *p != '\0'; p++) 163 if (!ch_isalpha(*p)) 164 return bmake_strdup(flags); 165 166 exploded = bmake_malloc((size_t)(p - flags) * 3 + 1); 167 for (p = flags, ep = exploded; *p != '\0'; p++) { 168 *ep++ = '-'; 169 *ep++ = *p; 170 *ep++ = ' '; 171 } 172 *ep = '\0'; 173 return exploded; 174 } 175 176 MAKE_ATTR_DEAD static void 177 usage(void) 178 { 179 size_t prognameLen = strcspn(progname, "["); 180 181 (void)fprintf(stderr, 182 "usage: %.*s [-BeikNnqrSstWwX]\n" 183 " [-C directory] [-D variable] [-d flags] [-f makefile]\n" 184 " [-I directory] [-J private] [-j max_jobs] [-m directory] [-T file]\n" 185 " [-V variable] [-v variable] [variable=value] [target ...]\n", 186 (int)prognameLen, progname); 187 exit(2); 188 } 189 190 static void 191 MainParseArgDebugFile(const char *arg) 192 { 193 const char *mode; 194 size_t len; 195 char *fname; 196 197 if (opts.debug_file != stdout && opts.debug_file != stderr) 198 fclose(opts.debug_file); 199 200 if (*arg == '+') { 201 arg++; 202 mode = "a"; 203 } else 204 mode = "w"; 205 206 if (strcmp(arg, "stdout") == 0) { 207 opts.debug_file = stdout; 208 return; 209 } 210 if (strcmp(arg, "stderr") == 0) { 211 opts.debug_file = stderr; 212 return; 213 } 214 215 len = strlen(arg); 216 fname = bmake_malloc(len + 20); 217 memcpy(fname, arg, len + 1); 218 219 /* Replace the trailing '%d' after '.%d' with the pid. */ 220 if (len >= 3 && memcmp(fname + len - 3, ".%d", 3) == 0) 221 snprintf(fname + len - 2, 20, "%d", getpid()); 222 223 opts.debug_file = fopen(fname, mode); 224 if (opts.debug_file == NULL) { 225 fprintf(stderr, "Cannot open debug file \"%s\"\n", 226 fname); 227 exit(2); 228 } 229 free(fname); 230 } 231 232 static void 233 MainParseArgDebug(const char *argvalue) 234 { 235 const char *modules; 236 DebugFlags debug = opts.debug; 237 238 for (modules = argvalue; *modules != '\0'; modules++) { 239 switch (*modules) { 240 case '0': /* undocumented, only intended for tests */ 241 memset(&debug, 0, sizeof(debug)); 242 break; 243 case 'A': 244 memset(&debug, ~0, sizeof(debug)); 245 break; 246 case 'a': 247 debug.DEBUG_ARCH = true; 248 break; 249 case 'C': 250 debug.DEBUG_CWD = true; 251 break; 252 case 'c': 253 debug.DEBUG_COND = true; 254 break; 255 case 'd': 256 debug.DEBUG_DIR = true; 257 break; 258 case 'e': 259 debug.DEBUG_ERROR = true; 260 break; 261 case 'f': 262 debug.DEBUG_FOR = true; 263 break; 264 case 'g': 265 if (modules[1] == '1') { 266 debug.DEBUG_GRAPH1 = true; 267 modules++; 268 } else if (modules[1] == '2') { 269 debug.DEBUG_GRAPH2 = true; 270 modules++; 271 } else if (modules[1] == '3') { 272 debug.DEBUG_GRAPH3 = true; 273 modules++; 274 } 275 break; 276 case 'h': 277 debug.DEBUG_HASH = true; 278 break; 279 case 'j': 280 debug.DEBUG_JOB = true; 281 break; 282 case 'L': 283 opts.strict = true; 284 break; 285 case 'l': 286 debug.DEBUG_LOUD = true; 287 break; 288 case 'M': 289 debug.DEBUG_META = true; 290 break; 291 case 'm': 292 debug.DEBUG_MAKE = true; 293 break; 294 case 'n': 295 debug.DEBUG_SCRIPT = true; 296 break; 297 case 'p': 298 debug.DEBUG_PARSE = true; 299 break; 300 case 's': 301 debug.DEBUG_SUFF = true; 302 break; 303 case 't': 304 debug.DEBUG_TARG = true; 305 break; 306 case 'V': 307 opts.debugVflag = true; 308 break; 309 case 'v': 310 debug.DEBUG_VAR = true; 311 break; 312 case 'x': 313 debug.DEBUG_SHELL = true; 314 break; 315 case 'F': 316 MainParseArgDebugFile(modules + 1); 317 goto finish; 318 default: 319 (void)fprintf(stderr, 320 "%s: illegal argument to d option -- %c\n", 321 progname, *modules); 322 usage(); 323 } 324 } 325 326 finish: 327 opts.debug = debug; 328 329 setvbuf(opts.debug_file, NULL, _IONBF, 0); 330 if (opts.debug_file != stdout) 331 setvbuf(stdout, NULL, _IOLBF, 0); 332 } 333 334 /* Is path relative or does it contain any relative component "." or ".."? */ 335 static bool 336 IsRelativePath(const char *path) 337 { 338 const char *p; 339 340 if (path[0] != '/') 341 return true; 342 p = path; 343 while ((p = strstr(p, "/.")) != NULL) { 344 p += 2; 345 if (*p == '.') 346 p++; 347 if (*p == '/' || *p == '\0') 348 return true; 349 } 350 return false; 351 } 352 353 static void 354 MainParseArgChdir(const char *argvalue) 355 { 356 struct stat sa, sb; 357 358 if (chdir(argvalue) == -1) { 359 (void)fprintf(stderr, "%s: chdir %s: %s\n", 360 progname, argvalue, strerror(errno)); 361 exit(2); /* Not 1 so -q can distinguish error */ 362 } 363 if (getcwd(curdir, MAXPATHLEN) == NULL) { 364 (void)fprintf(stderr, "%s: %s.\n", progname, strerror(errno)); 365 exit(2); 366 } 367 if (!IsRelativePath(argvalue) && 368 stat(argvalue, &sa) != -1 && 369 stat(curdir, &sb) != -1 && 370 sa.st_ino == sb.st_ino && 371 sa.st_dev == sb.st_dev) 372 strncpy(curdir, argvalue, MAXPATHLEN); 373 ignorePWD = true; 374 } 375 376 static void 377 MainParseArgJobsInternal(const char *argvalue) 378 { 379 char end; 380 if (sscanf(argvalue, "%d,%d%c", &jp_0, &jp_1, &end) != 2) { 381 (void)fprintf(stderr, 382 "%s: internal error -- J option malformed (%s)\n", 383 progname, argvalue); 384 usage(); 385 } 386 if ((fcntl(jp_0, F_GETFD, 0) < 0) || 387 (fcntl(jp_1, F_GETFD, 0) < 0)) { 388 jp_0 = -1; 389 jp_1 = -1; 390 opts.compatMake = true; 391 } else { 392 Global_Append(MAKEFLAGS, "-J"); 393 Global_Append(MAKEFLAGS, argvalue); 394 } 395 } 396 397 static void 398 MainParseArgJobs(const char *arg) 399 { 400 const char *p; 401 char *end; 402 char v[12]; 403 404 forceJobs = true; 405 opts.maxJobs = (int)strtol(arg, &end, 0); 406 p = end; 407 #ifdef _SC_NPROCESSORS_ONLN 408 if (*p != '\0') { 409 double d; 410 411 if (*p == 'C') { 412 d = (opts.maxJobs > 0) ? opts.maxJobs : 1; 413 } else if (*p == '.') { 414 d = strtod(arg, &end); 415 p = end; 416 } else 417 d = 0.0; 418 if (d > 0.0) { 419 p = ""; 420 opts.maxJobs = (int)sysconf(_SC_NPROCESSORS_ONLN); 421 opts.maxJobs = (int)(d * (double)opts.maxJobs); 422 } 423 } 424 #endif 425 if (*p != '\0' || opts.maxJobs < 1) { 426 (void)fprintf(stderr, 427 "%s: argument '%s' to option '-j' " 428 "must be a positive number\n", 429 progname, arg); 430 exit(2); /* Not 1 so -q can distinguish error */ 431 } 432 snprintf(v, sizeof(v), "%d", opts.maxJobs); 433 Global_Append(MAKEFLAGS, "-j"); 434 Global_Append(MAKEFLAGS, v); 435 Global_Set(".MAKE.JOBS", v); 436 maxJobTokens = opts.maxJobs; 437 } 438 439 static void 440 MainParseArgSysInc(const char *argvalue) 441 { 442 if (strncmp(".../", argvalue, 4) == 0) { 443 char *found_path = Dir_FindHereOrAbove(curdir, argvalue + 4); 444 if (found_path == NULL) 445 return; 446 (void)SearchPath_Add(sysIncPath, found_path); 447 free(found_path); 448 } else { 449 (void)SearchPath_Add(sysIncPath, argvalue); 450 } 451 Global_Append(MAKEFLAGS, "-m"); 452 Global_Append(MAKEFLAGS, argvalue); 453 Dir_SetSYSPATH(); 454 } 455 456 static bool 457 MainParseOption(char c, const char *argvalue) 458 { 459 switch (c) { 460 case '\0': 461 break; 462 case 'B': 463 opts.compatMake = true; 464 Global_Append(MAKEFLAGS, "-B"); 465 Global_Set(".MAKE.MODE", "compat"); 466 break; 467 case 'C': 468 MainParseArgChdir(argvalue); 469 break; 470 case 'D': 471 if (argvalue[0] == '\0') 472 return false; 473 Var_SetExpand(SCOPE_GLOBAL, argvalue, "1"); 474 Global_Append(MAKEFLAGS, "-D"); 475 Global_Append(MAKEFLAGS, argvalue); 476 break; 477 case 'I': 478 SearchPath_Add(parseIncPath, argvalue); 479 Global_Append(MAKEFLAGS, "-I"); 480 Global_Append(MAKEFLAGS, argvalue); 481 break; 482 case 'J': 483 MainParseArgJobsInternal(argvalue); 484 break; 485 case 'N': 486 opts.noExecute = true; 487 opts.noRecursiveExecute = true; 488 Global_Append(MAKEFLAGS, "-N"); 489 break; 490 case 'S': 491 opts.keepgoing = false; 492 Global_Append(MAKEFLAGS, "-S"); 493 break; 494 case 'T': 495 tracefile = bmake_strdup(argvalue); 496 Global_Append(MAKEFLAGS, "-T"); 497 Global_Append(MAKEFLAGS, argvalue); 498 break; 499 case 'V': 500 case 'v': 501 opts.printVars = c == 'v' ? PVM_EXPANDED : PVM_UNEXPANDED; 502 Lst_Append(&opts.variables, bmake_strdup(argvalue)); 503 /* XXX: Why always -V? */ 504 Global_Append(MAKEFLAGS, "-V"); 505 Global_Append(MAKEFLAGS, argvalue); 506 break; 507 case 'W': 508 opts.parseWarnFatal = true; 509 /* XXX: why no Global_Append? */ 510 break; 511 case 'X': 512 opts.varNoExportEnv = true; 513 Global_Append(MAKEFLAGS, "-X"); 514 break; 515 case 'd': 516 /* If '-d-opts' don't pass to children */ 517 if (argvalue[0] == '-') 518 argvalue++; 519 else { 520 Global_Append(MAKEFLAGS, "-d"); 521 Global_Append(MAKEFLAGS, argvalue); 522 } 523 MainParseArgDebug(argvalue); 524 break; 525 case 'e': 526 opts.checkEnvFirst = true; 527 Global_Append(MAKEFLAGS, "-e"); 528 break; 529 case 'f': 530 Lst_Append(&opts.makefiles, bmake_strdup(argvalue)); 531 break; 532 case 'i': 533 opts.ignoreErrors = true; 534 Global_Append(MAKEFLAGS, "-i"); 535 break; 536 case 'j': 537 MainParseArgJobs(argvalue); 538 break; 539 case 'k': 540 opts.keepgoing = true; 541 Global_Append(MAKEFLAGS, "-k"); 542 break; 543 case 'm': 544 MainParseArgSysInc(argvalue); 545 /* XXX: why no Var_Append? */ 546 break; 547 case 'n': 548 opts.noExecute = true; 549 Global_Append(MAKEFLAGS, "-n"); 550 break; 551 case 'q': 552 opts.query = true; 553 /* Kind of nonsensical, wot? */ 554 Global_Append(MAKEFLAGS, "-q"); 555 break; 556 case 'r': 557 opts.noBuiltins = true; 558 Global_Append(MAKEFLAGS, "-r"); 559 break; 560 case 's': 561 opts.silent = true; 562 Global_Append(MAKEFLAGS, "-s"); 563 break; 564 case 't': 565 opts.touch = true; 566 Global_Append(MAKEFLAGS, "-t"); 567 break; 568 case 'w': 569 opts.enterFlag = true; 570 Global_Append(MAKEFLAGS, "-w"); 571 break; 572 default: 573 usage(); 574 } 575 return true; 576 } 577 578 /* 579 * Parse the given arguments. Called from main() and from 580 * Main_ParseArgLine() when the .MAKEFLAGS target is used. 581 * 582 * The arguments must be treated as read-only and will be freed after the 583 * call. 584 * 585 * XXX: Deal with command line overriding .MAKEFLAGS in makefile 586 */ 587 static void 588 MainParseArgs(int argc, char **argv) 589 { 590 char c; 591 int arginc; 592 char *argvalue; 593 char *optscan; 594 bool inOption, dashDash = false; 595 596 const char *optspecs = "BC:D:I:J:NST:V:WXd:ef:ij:km:nqrstv:w"; 597 /* Can't actually use getopt(3) because rescanning is not portable */ 598 599 rearg: 600 inOption = false; 601 optscan = NULL; 602 while (argc > 1) { 603 const char *optspec; 604 if (!inOption) 605 optscan = argv[1]; 606 c = *optscan++; 607 arginc = 0; 608 if (inOption) { 609 if (c == '\0') { 610 argv++; 611 argc--; 612 inOption = false; 613 continue; 614 } 615 } else { 616 if (c != '-' || dashDash) 617 break; 618 inOption = true; 619 c = *optscan++; 620 } 621 /* '-' found at some earlier point */ 622 optspec = strchr(optspecs, c); 623 if (c != '\0' && optspec != NULL && optspec[1] == ':') { 624 /* 625 * -<something> found, and <something> should have an 626 * argument 627 */ 628 inOption = false; 629 arginc = 1; 630 argvalue = optscan; 631 if (*argvalue == '\0') { 632 if (argc < 3) 633 goto noarg; 634 argvalue = argv[2]; 635 arginc = 2; 636 } 637 } else { 638 argvalue = NULL; 639 } 640 switch (c) { 641 case '\0': 642 arginc = 1; 643 inOption = false; 644 break; 645 case '-': 646 dashDash = true; 647 break; 648 default: 649 if (!MainParseOption(c, argvalue)) 650 goto noarg; 651 } 652 argv += arginc; 653 argc -= arginc; 654 } 655 656 /* 657 * See if the rest of the arguments are variable assignments and 658 * perform them if so. Else take them to be targets and stuff them 659 * on the end of the "create" list. 660 */ 661 for (; argc > 1; argv++, argc--) { 662 if (!Parse_VarAssign(argv[1], false, SCOPE_CMDLINE)) { 663 if (argv[1][0] == '\0') 664 Punt("illegal (null) argument."); 665 if (argv[1][0] == '-' && !dashDash) 666 goto rearg; 667 Lst_Append(&opts.create, bmake_strdup(argv[1])); 668 } 669 } 670 671 return; 672 noarg: 673 (void)fprintf(stderr, "%s: option requires an argument -- %c\n", 674 progname, c); 675 usage(); 676 } 677 678 /* 679 * Break a line of arguments into words and parse them. 680 * 681 * Used when a .MFLAGS or .MAKEFLAGS target is encountered during parsing and 682 * by main() when reading the MAKEFLAGS environment variable. 683 */ 684 void 685 Main_ParseArgLine(const char *line) 686 { 687 Words words; 688 char *buf; 689 690 if (line == NULL) 691 return; 692 /* XXX: don't use line as an iterator variable */ 693 for (; *line == ' '; line++) 694 continue; 695 if (line[0] == '\0') 696 return; 697 698 { 699 FStr argv0 = Var_Value(SCOPE_GLOBAL, ".MAKE"); 700 buf = str_concat3(argv0.str, " ", line); 701 FStr_Done(&argv0); 702 } 703 704 words = Str_Words(buf, true); 705 if (words.words == NULL) { 706 Error("Unterminated quoted string [%s]", buf); 707 free(buf); 708 return; 709 } 710 free(buf); 711 MainParseArgs((int)words.len, words.words); 712 713 Words_Free(words); 714 } 715 716 bool 717 Main_SetObjdir(bool writable, const char *fmt, ...) 718 { 719 struct stat sb; 720 char *path; 721 char buf[MAXPATHLEN + 1]; 722 char buf2[MAXPATHLEN + 1]; 723 va_list ap; 724 725 va_start(ap, fmt); 726 vsnprintf(path = buf, MAXPATHLEN, fmt, ap); 727 va_end(ap); 728 729 if (path[0] != '/') { 730 if (snprintf(buf2, MAXPATHLEN, "%s/%s", curdir, path) <= MAXPATHLEN) 731 path = buf2; 732 else 733 return false; 734 } 735 736 /* look for the directory and try to chdir there */ 737 if (stat(path, &sb) != 0 || !S_ISDIR(sb.st_mode)) 738 return false; 739 740 if ((writable && access(path, W_OK) != 0) || chdir(path) != 0) { 741 (void)fprintf(stderr, "%s: warning: %s: %s.\n", 742 progname, path, strerror(errno)); 743 return false; 744 } 745 746 snprintf(objdir, sizeof objdir, "%s", path); 747 Global_Set(".OBJDIR", objdir); 748 setenv("PWD", objdir, 1); 749 Dir_InitDot(); 750 purge_relative_cached_realpaths(); 751 if (opts.enterFlag && strcmp(objdir, curdir) != 0) 752 enterFlagObj = true; 753 return true; 754 } 755 756 static bool 757 SetVarObjdir(bool writable, const char *var, const char *suffix) 758 { 759 FStr path = Var_Value(SCOPE_CMDLINE, var); 760 761 if (path.str == NULL || path.str[0] == '\0') { 762 FStr_Done(&path); 763 return false; 764 } 765 766 Var_Expand(&path, SCOPE_GLOBAL, VARE_WANTRES); 767 768 (void)Main_SetObjdir(writable, "%s%s", path.str, suffix); 769 770 FStr_Done(&path); 771 return true; 772 } 773 774 /* 775 * Splits str into words, adding them to the list. 776 * The string must be kept alive as long as the list. 777 */ 778 int 779 str2Lst_Append(StringList *lp, char *str) 780 { 781 char *cp; 782 int n; 783 784 const char *sep = " \t"; 785 786 for (n = 0, cp = strtok(str, sep); cp != NULL; cp = strtok(NULL, sep)) { 787 Lst_Append(lp, cp); 788 n++; 789 } 790 return n; 791 } 792 793 #ifdef SIGINFO 794 /*ARGSUSED*/ 795 static void 796 siginfo(int signo MAKE_ATTR_UNUSED) 797 { 798 char dir[MAXPATHLEN]; 799 char str[2 * MAXPATHLEN]; 800 int len; 801 if (getcwd(dir, sizeof dir) == NULL) 802 return; 803 len = snprintf(str, sizeof str, "%s: Working in: %s\n", progname, dir); 804 if (len > 0) 805 (void)write(STDERR_FILENO, str, (size_t)len); 806 } 807 #endif 808 809 /* Allow makefiles some control over the mode we run in. */ 810 static void 811 MakeMode(void) 812 { 813 char *mode = Var_Subst("${.MAKE.MODE:tl}", 814 SCOPE_GLOBAL, VARE_WANTRES); 815 /* TODO: handle errors */ 816 817 if (mode[0] != '\0') { 818 if (strstr(mode, "compat") != NULL) { 819 opts.compatMake = true; 820 forceJobs = false; 821 } 822 #if USE_META 823 if (strstr(mode, "meta") != NULL) 824 meta_mode_init(mode); 825 #endif 826 if (strstr(mode, "randomize-targets") != NULL) 827 opts.randomizeTargets = true; 828 } 829 830 free(mode); 831 } 832 833 static void 834 PrintVar(const char *varname, bool expandVars) 835 { 836 if (strchr(varname, '$') != NULL) { 837 char *evalue = Var_Subst(varname, SCOPE_GLOBAL, VARE_WANTRES); 838 /* TODO: handle errors */ 839 printf("%s\n", evalue); 840 free(evalue); 841 842 } else if (expandVars) { 843 char *expr = str_concat3("${", varname, "}"); 844 char *evalue = Var_Subst(expr, SCOPE_GLOBAL, VARE_WANTRES); 845 /* TODO: handle errors */ 846 free(expr); 847 printf("%s\n", evalue); 848 free(evalue); 849 850 } else { 851 FStr value = Var_Value(SCOPE_GLOBAL, varname); 852 printf("%s\n", value.str != NULL ? value.str : ""); 853 FStr_Done(&value); 854 } 855 } 856 857 /* 858 * Return a bool based on a variable. 859 * 860 * If the knob is not set, return the fallback. 861 * If set, anything that looks or smells like "No", "False", "Off", "0", etc. 862 * is false, otherwise true. 863 */ 864 bool 865 GetBooleanExpr(const char *expr, bool fallback) 866 { 867 char *value; 868 bool res; 869 870 value = Var_Subst(expr, SCOPE_GLOBAL, VARE_WANTRES); 871 /* TODO: handle errors */ 872 res = ParseBoolean(value, fallback); 873 free(value); 874 return res; 875 } 876 877 static void 878 doPrintVars(void) 879 { 880 StringListNode *ln; 881 bool expandVars; 882 883 if (opts.printVars == PVM_EXPANDED) 884 expandVars = true; 885 else if (opts.debugVflag) 886 expandVars = false; 887 else 888 expandVars = GetBooleanExpr("${.MAKE.EXPAND_VARIABLES}", 889 false); 890 891 for (ln = opts.variables.first; ln != NULL; ln = ln->next) { 892 const char *varname = ln->datum; 893 PrintVar(varname, expandVars); 894 } 895 } 896 897 static bool 898 runTargets(void) 899 { 900 GNodeList targs = LST_INIT; /* target nodes to create */ 901 bool outOfDate; /* false if all targets up to date */ 902 903 /* 904 * Have now read the entire graph and need to make a list of 905 * targets to create. If none was given on the command line, 906 * we consult the parsing module to find the main target(s) 907 * to create. 908 */ 909 if (Lst_IsEmpty(&opts.create)) 910 Parse_MainName(&targs); 911 else 912 Targ_FindList(&targs, &opts.create); 913 914 if (!opts.compatMake) { 915 /* 916 * Initialize job module before traversing the graph 917 * now that any .BEGIN and .END targets have been read. 918 * This is done only if the -q flag wasn't given 919 * (to prevent the .BEGIN from being executed should 920 * it exist). 921 */ 922 if (!opts.query) { 923 Job_Init(); 924 jobsRunning = true; 925 } 926 927 /* Traverse the graph, checking on all the targets */ 928 outOfDate = Make_Run(&targs); 929 } else { 930 Compat_MakeAll(&targs); 931 outOfDate = false; 932 } 933 Lst_Done(&targs); /* Don't free the targets themselves. */ 934 return outOfDate; 935 } 936 937 /* 938 * Set up the .TARGETS variable to contain the list of targets to be created. 939 * If none specified, make the variable empty for now, the parser will fill 940 * in the default or .MAIN target later. 941 */ 942 static void 943 InitVarTargets(void) 944 { 945 StringListNode *ln; 946 947 if (Lst_IsEmpty(&opts.create)) { 948 Global_Set(".TARGETS", ""); 949 return; 950 } 951 952 for (ln = opts.create.first; ln != NULL; ln = ln->next) { 953 const char *name = ln->datum; 954 Global_Append(".TARGETS", name); 955 } 956 } 957 958 static void 959 InitRandom(void) 960 { 961 struct timeval tv; 962 963 gettimeofday(&tv, NULL); 964 srandom((unsigned int)(tv.tv_sec + tv.tv_usec)); 965 } 966 967 static const char * 968 InitVarMachine(const struct utsname *utsname MAKE_ATTR_UNUSED) 969 { 970 const char *machine = getenv("MACHINE"); 971 if (machine != NULL) 972 return machine; 973 974 #if defined(MAKE_NATIVE) 975 return utsname->machine; 976 #elif defined(MAKE_MACHINE) 977 return MAKE_MACHINE; 978 #else 979 return "unknown"; 980 #endif 981 } 982 983 static const char * 984 InitVarMachineArch(void) 985 { 986 const char *env = getenv("MACHINE_ARCH"); 987 if (env != NULL) 988 return env; 989 990 #ifdef MAKE_NATIVE 991 { 992 struct utsname utsname; 993 static char machine_arch_buf[sizeof utsname.machine]; 994 const int mib[2] = { CTL_HW, HW_MACHINE_ARCH }; 995 size_t len = sizeof machine_arch_buf; 996 997 if (sysctl(mib, (unsigned int)__arraycount(mib), 998 machine_arch_buf, &len, NULL, 0) < 0) { 999 (void)fprintf(stderr, "%s: sysctl failed (%s).\n", 1000 progname, strerror(errno)); 1001 exit(2); 1002 } 1003 1004 return machine_arch_buf; 1005 } 1006 #elif defined(MACHINE_ARCH) 1007 return MACHINE_ARCH; 1008 #elif defined(MAKE_MACHINE_ARCH) 1009 return MAKE_MACHINE_ARCH; 1010 #else 1011 return "unknown"; 1012 #endif 1013 } 1014 1015 #ifndef NO_PWD_OVERRIDE 1016 /* 1017 * Overriding getcwd() with $PWD totally breaks MAKEOBJDIRPREFIX 1018 * since the value of curdir can vary depending on how we got 1019 * here. That is, sitting at a shell prompt (shell that provides $PWD) 1020 * or via subdir.mk, in which case it's likely a shell which does 1021 * not provide it. 1022 * 1023 * So, to stop it breaking this case only, we ignore PWD if 1024 * MAKEOBJDIRPREFIX is set or MAKEOBJDIR contains an expression. 1025 */ 1026 static void 1027 HandlePWD(const struct stat *curdir_st) 1028 { 1029 char *pwd; 1030 FStr makeobjdir; 1031 struct stat pwd_st; 1032 1033 if (ignorePWD || (pwd = getenv("PWD")) == NULL) 1034 return; 1035 1036 if (Var_Exists(SCOPE_CMDLINE, "MAKEOBJDIRPREFIX")) 1037 return; 1038 1039 makeobjdir = Var_Value(SCOPE_CMDLINE, "MAKEOBJDIR"); 1040 if (makeobjdir.str != NULL && strchr(makeobjdir.str, '$') != NULL) 1041 goto ignore_pwd; 1042 1043 if (stat(pwd, &pwd_st) == 0 && 1044 curdir_st->st_ino == pwd_st.st_ino && 1045 curdir_st->st_dev == pwd_st.st_dev) 1046 (void)strncpy(curdir, pwd, MAXPATHLEN); 1047 1048 ignore_pwd: 1049 FStr_Done(&makeobjdir); 1050 } 1051 #endif 1052 1053 /* 1054 * Find the .OBJDIR. If MAKEOBJDIRPREFIX, or failing that, MAKEOBJDIR is set 1055 * in the environment, try only that value and fall back to .CURDIR if it 1056 * does not exist. 1057 * 1058 * Otherwise, try _PATH_OBJDIR.MACHINE-MACHINE_ARCH, _PATH_OBJDIR.MACHINE, 1059 * and finally _PATH_OBJDIRPREFIX`pwd`, in that order. If none of these 1060 * paths exist, just use .CURDIR. 1061 */ 1062 static void 1063 InitObjdir(const char *machine, const char *machine_arch) 1064 { 1065 bool writable; 1066 1067 Dir_InitCur(curdir); 1068 writable = GetBooleanExpr("${MAKE_OBJDIR_CHECK_WRITABLE}", true); 1069 (void)Main_SetObjdir(false, "%s", curdir); 1070 1071 if (!SetVarObjdir(writable, "MAKEOBJDIRPREFIX", curdir) && 1072 !SetVarObjdir(writable, "MAKEOBJDIR", "") && 1073 !Main_SetObjdir(writable, "%s.%s-%s", _PATH_OBJDIR, machine, machine_arch) && 1074 !Main_SetObjdir(writable, "%s.%s", _PATH_OBJDIR, machine) && 1075 !Main_SetObjdir(writable, "%s", _PATH_OBJDIR)) 1076 (void)Main_SetObjdir(writable, "%s%s", _PATH_OBJDIRPREFIX, curdir); 1077 } 1078 1079 /* get rid of resource limit on file descriptors */ 1080 static void 1081 UnlimitFiles(void) 1082 { 1083 #if defined(MAKE_NATIVE) || (defined(HAVE_SETRLIMIT) && defined(RLIMIT_NOFILE)) 1084 struct rlimit rl; 1085 if (getrlimit(RLIMIT_NOFILE, &rl) != -1 && 1086 rl.rlim_cur != rl.rlim_max) { 1087 rl.rlim_cur = rl.rlim_max; 1088 (void)setrlimit(RLIMIT_NOFILE, &rl); 1089 } 1090 #endif 1091 } 1092 1093 static void 1094 CmdOpts_Init(void) 1095 { 1096 opts.compatMake = false; 1097 memset(&opts.debug, 0, sizeof(opts.debug)); 1098 /* opts.debug_file has already been initialized earlier */ 1099 opts.strict = false; 1100 opts.debugVflag = false; 1101 opts.checkEnvFirst = false; 1102 Lst_Init(&opts.makefiles); 1103 opts.ignoreErrors = false; /* Pay attention to non-zero returns */ 1104 opts.maxJobs = 1; 1105 opts.keepgoing = false; /* Stop on error */ 1106 opts.noRecursiveExecute = false; /* Execute all .MAKE targets */ 1107 opts.noExecute = false; /* Execute all commands */ 1108 opts.query = false; 1109 opts.noBuiltins = false; /* Read the built-in rules */ 1110 opts.silent = false; /* Print commands as executed */ 1111 opts.touch = false; 1112 opts.printVars = PVM_NONE; 1113 Lst_Init(&opts.variables); 1114 opts.parseWarnFatal = false; 1115 opts.enterFlag = false; 1116 opts.varNoExportEnv = false; 1117 Lst_Init(&opts.create); 1118 } 1119 1120 /* 1121 * Initialize MAKE and .MAKE to the path of the executable, so that it can be 1122 * found by execvp(3) and the shells, even after a chdir. 1123 * 1124 * If it's a relative path and contains a '/', resolve it to an absolute path. 1125 * Otherwise keep it as is, assuming it will be found in the PATH. 1126 */ 1127 static void 1128 InitVarMake(const char *argv0) 1129 { 1130 const char *make = argv0; 1131 1132 if (argv0[0] != '/' && strchr(argv0, '/') != NULL) { 1133 char pathbuf[MAXPATHLEN]; 1134 const char *abspath = cached_realpath(argv0, pathbuf); 1135 struct stat st; 1136 if (abspath != NULL && abspath[0] == '/' && 1137 stat(make, &st) == 0) 1138 make = abspath; 1139 } 1140 1141 Global_Set("MAKE", make); 1142 Global_Set(".MAKE", make); 1143 } 1144 1145 /* 1146 * Add the directories from the colon-separated syspath to defSysIncPath. 1147 * After returning, the contents of syspath is unspecified. 1148 */ 1149 static void 1150 InitDefSysIncPath(char *syspath) 1151 { 1152 static char defsyspath[] = _PATH_DEFSYSPATH; 1153 char *start, *cp; 1154 1155 /* 1156 * If no user-supplied system path was given (through the -m option) 1157 * add the directories from the DEFSYSPATH (more than one may be given 1158 * as dir1:...:dirn) to the system include path. 1159 */ 1160 if (syspath == NULL || syspath[0] == '\0') 1161 syspath = defsyspath; 1162 else 1163 syspath = bmake_strdup(syspath); 1164 1165 for (start = syspath; *start != '\0'; start = cp) { 1166 for (cp = start; *cp != '\0' && *cp != ':'; cp++) 1167 continue; 1168 if (*cp == ':') 1169 *cp++ = '\0'; 1170 1171 /* look for magic parent directory search string */ 1172 if (strncmp(start, ".../", 4) == 0) { 1173 char *dir = Dir_FindHereOrAbove(curdir, start + 4); 1174 if (dir != NULL) { 1175 (void)SearchPath_Add(defSysIncPath, dir); 1176 free(dir); 1177 } 1178 } else { 1179 (void)SearchPath_Add(defSysIncPath, start); 1180 } 1181 } 1182 1183 if (syspath != defsyspath) 1184 free(syspath); 1185 } 1186 1187 static void 1188 ReadBuiltinRules(void) 1189 { 1190 StringListNode *ln; 1191 StringList sysMkFiles = LST_INIT; 1192 1193 SearchPath_Expand( 1194 Lst_IsEmpty(&sysIncPath->dirs) ? defSysIncPath : sysIncPath, 1195 _PATH_DEFSYSMK, 1196 &sysMkFiles); 1197 if (Lst_IsEmpty(&sysMkFiles)) 1198 Fatal("%s: no system rules (%s).", progname, _PATH_DEFSYSMK); 1199 1200 for (ln = sysMkFiles.first; ln != NULL; ln = ln->next) 1201 if (ReadMakefile(ln->datum)) 1202 break; 1203 1204 if (ln == NULL) 1205 Fatal("%s: cannot open %s.", 1206 progname, (const char *)sysMkFiles.first->datum); 1207 1208 Lst_DoneCall(&sysMkFiles, free); 1209 } 1210 1211 static void 1212 InitMaxJobs(void) 1213 { 1214 char *value; 1215 int n; 1216 1217 if (forceJobs || opts.compatMake || 1218 !Var_Exists(SCOPE_GLOBAL, ".MAKE.JOBS")) 1219 return; 1220 1221 value = Var_Subst("${.MAKE.JOBS}", SCOPE_GLOBAL, VARE_WANTRES); 1222 /* TODO: handle errors */ 1223 n = (int)strtol(value, NULL, 0); 1224 if (n < 1) { 1225 (void)fprintf(stderr, 1226 "%s: illegal value for .MAKE.JOBS " 1227 "-- must be positive integer!\n", 1228 progname); 1229 exit(2); /* Not 1 so -q can distinguish error */ 1230 } 1231 1232 if (n != opts.maxJobs) { 1233 Global_Append(MAKEFLAGS, "-j"); 1234 Global_Append(MAKEFLAGS, value); 1235 } 1236 1237 opts.maxJobs = n; 1238 maxJobTokens = opts.maxJobs; 1239 forceJobs = true; 1240 free(value); 1241 } 1242 1243 /* 1244 * For compatibility, look at the directories in the VPATH variable 1245 * and add them to the search path, if the variable is defined. The 1246 * variable's value is in the same format as the PATH environment 1247 * variable, i.e. <directory>:<directory>:<directory>... 1248 */ 1249 static void 1250 InitVpath(void) 1251 { 1252 char *vpath, savec, *path; 1253 if (!Var_Exists(SCOPE_CMDLINE, "VPATH")) 1254 return; 1255 1256 vpath = Var_Subst("${VPATH}", SCOPE_CMDLINE, VARE_WANTRES); 1257 /* TODO: handle errors */ 1258 path = vpath; 1259 do { 1260 char *cp; 1261 /* skip to end of directory */ 1262 for (cp = path; *cp != ':' && *cp != '\0'; cp++) 1263 continue; 1264 /* Save terminator character so know when to stop */ 1265 savec = *cp; 1266 *cp = '\0'; 1267 /* Add directory to search path */ 1268 (void)SearchPath_Add(&dirSearchPath, path); 1269 *cp = savec; 1270 path = cp + 1; 1271 } while (savec == ':'); 1272 free(vpath); 1273 } 1274 1275 static void 1276 ReadAllMakefiles(const StringList *makefiles) 1277 { 1278 StringListNode *ln; 1279 1280 for (ln = makefiles->first; ln != NULL; ln = ln->next) { 1281 const char *fname = ln->datum; 1282 if (!ReadMakefile(fname)) 1283 Fatal("%s: cannot open %s.", progname, fname); 1284 } 1285 } 1286 1287 static void 1288 ReadFirstDefaultMakefile(void) 1289 { 1290 StringList makefiles = LST_INIT; 1291 StringListNode *ln; 1292 char *prefs = Var_Subst("${.MAKE.MAKEFILE_PREFERENCE}", 1293 SCOPE_CMDLINE, VARE_WANTRES); 1294 /* TODO: handle errors */ 1295 1296 (void)str2Lst_Append(&makefiles, prefs); 1297 1298 for (ln = makefiles.first; ln != NULL; ln = ln->next) 1299 if (ReadMakefile(ln->datum)) 1300 break; 1301 1302 Lst_Done(&makefiles); 1303 free(prefs); 1304 } 1305 1306 /* 1307 * Initialize variables such as MAKE, MACHINE, .MAKEFLAGS. 1308 * Initialize a few modules. 1309 * Parse the arguments from MAKEFLAGS and the command line. 1310 */ 1311 static void 1312 main_Init(int argc, char **argv) 1313 { 1314 struct stat sa; 1315 const char *machine; 1316 const char *machine_arch; 1317 char *syspath = getenv("MAKESYSPATH"); 1318 struct utsname utsname; 1319 1320 /* default to writing debug to stderr */ 1321 opts.debug_file = stderr; 1322 1323 Str_Intern_Init(); 1324 HashTable_Init(&cached_realpaths); 1325 1326 #ifdef SIGINFO 1327 (void)bmake_signal(SIGINFO, siginfo); 1328 #endif 1329 1330 InitRandom(); 1331 1332 progname = str_basename(argv[0]); 1333 1334 UnlimitFiles(); 1335 1336 if (uname(&utsname) == -1) { 1337 (void)fprintf(stderr, "%s: uname failed (%s).\n", progname, 1338 strerror(errno)); 1339 exit(2); 1340 } 1341 1342 machine = InitVarMachine(&utsname); 1343 machine_arch = InitVarMachineArch(); 1344 1345 myPid = getpid(); /* remember this for vFork() */ 1346 1347 /* Just in case MAKEOBJDIR wants us to do something tricky. */ 1348 Targ_Init(); 1349 Var_Init(); 1350 Global_Set_ReadOnly(".MAKE.OS", utsname.sysname); 1351 Global_Set("MACHINE", machine); 1352 Global_Set("MACHINE_ARCH", machine_arch); 1353 #ifdef MAKE_VERSION 1354 Global_Set("MAKE_VERSION", MAKE_VERSION); 1355 #endif 1356 Global_Set_ReadOnly(".newline", "\n"); 1357 #ifndef MAKEFILE_PREFERENCE_LIST 1358 /* This is the traditional preference for makefiles. */ 1359 # define MAKEFILE_PREFERENCE_LIST "makefile Makefile" 1360 #endif 1361 Global_Set(".MAKE.MAKEFILE_PREFERENCE", MAKEFILE_PREFERENCE_LIST); 1362 Global_Set(".MAKE.DEPENDFILE", ".depend"); 1363 /* Tell makefiles like jobs.mk whether we support -jC */ 1364 #ifdef _SC_NPROCESSORS_ONLN 1365 Global_Set_ReadOnly(".MAKE.JOBS.C", "yes"); 1366 #else 1367 Global_Set_ReadOnly(".MAKE.JOBS.C", "no"); 1368 #endif 1369 1370 CmdOpts_Init(); 1371 allPrecious = false; /* Remove targets when interrupted */ 1372 deleteOnError = false; /* Historical default behavior */ 1373 jobsRunning = false; 1374 1375 maxJobTokens = opts.maxJobs; 1376 ignorePWD = false; 1377 1378 /* 1379 * Initialize the parsing, directory and variable modules to prepare 1380 * for the reading of inclusion paths and variable settings on the 1381 * command line 1382 */ 1383 1384 /* 1385 * Initialize various variables. 1386 * MAKE also gets this name, for compatibility 1387 * .MAKEFLAGS gets set to the empty string just in case. 1388 * MFLAGS also gets initialized empty, for compatibility. 1389 */ 1390 Parse_Init(); 1391 InitVarMake(argv[0]); 1392 Global_Set(MAKEFLAGS, ""); 1393 Global_Set(".MAKEOVERRIDES", ""); 1394 Global_Set("MFLAGS", ""); 1395 Global_Set(".ALLTARGETS", ""); 1396 Var_Set(SCOPE_CMDLINE, ".MAKE.LEVEL.ENV", MAKE_LEVEL_ENV); 1397 1398 /* Set some other useful variables. */ 1399 { 1400 char buf[64], *ep = getenv(MAKE_LEVEL_ENV); 1401 1402 makelevel = ep != NULL && ep[0] != '\0' ? atoi(ep) : 0; 1403 if (makelevel < 0) 1404 makelevel = 0; 1405 snprintf(buf, sizeof buf, "%d", makelevel); 1406 Global_Set(".MAKE.LEVEL", buf); 1407 snprintf(buf, sizeof buf, "%u", myPid); 1408 Global_Set_ReadOnly(".MAKE.PID", buf); 1409 snprintf(buf, sizeof buf, "%u", getppid()); 1410 Global_Set_ReadOnly(".MAKE.PPID", buf); 1411 snprintf(buf, sizeof buf, "%u", getuid()); 1412 Global_Set_ReadOnly(".MAKE.UID", buf); 1413 snprintf(buf, sizeof buf, "%u", getgid()); 1414 Global_Set_ReadOnly(".MAKE.GID", buf); 1415 } 1416 if (makelevel > 0) { 1417 char pn[1024]; 1418 snprintf(pn, sizeof pn, "%s[%d]", progname, makelevel); 1419 progname = bmake_strdup(pn); 1420 } 1421 1422 #ifdef USE_META 1423 meta_init(); 1424 #endif 1425 Dir_Init(); 1426 1427 #ifdef POSIX 1428 { 1429 char *makeflags = explode(getenv("MAKEFLAGS")); 1430 Main_ParseArgLine(makeflags); 1431 free(makeflags); 1432 } 1433 #else 1434 /* 1435 * First snag any flags out of the MAKE environment variable. 1436 * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's 1437 * in a different format). 1438 */ 1439 Main_ParseArgLine(getenv("MAKE")); 1440 #endif 1441 1442 if (getcwd(curdir, MAXPATHLEN) == NULL) { 1443 (void)fprintf(stderr, "%s: getcwd: %s.\n", 1444 progname, strerror(errno)); 1445 exit(2); 1446 } 1447 1448 MainParseArgs(argc, argv); 1449 1450 if (opts.enterFlag) 1451 printf("%s: Entering directory `%s'\n", progname, curdir); 1452 1453 if (stat(curdir, &sa) == -1) { 1454 (void)fprintf(stderr, "%s: %s: %s.\n", 1455 progname, curdir, strerror(errno)); 1456 exit(2); 1457 } 1458 1459 #ifndef NO_PWD_OVERRIDE 1460 HandlePWD(&sa); 1461 #endif 1462 Global_Set(".CURDIR", curdir); 1463 1464 InitObjdir(machine, machine_arch); 1465 1466 Arch_Init(); 1467 Suff_Init(); 1468 Trace_Init(tracefile); 1469 1470 defaultNode = NULL; 1471 (void)time(&now); 1472 1473 Trace_Log(MAKESTART, NULL); 1474 1475 InitVarTargets(); 1476 1477 InitDefSysIncPath(syspath); 1478 } 1479 1480 /* 1481 * Read the system makefile followed by either makefile, Makefile or the 1482 * files given by the -f option. Exit on parse errors. 1483 */ 1484 static void 1485 main_ReadFiles(void) 1486 { 1487 1488 if (Lst_IsEmpty(&sysIncPath->dirs)) 1489 SearchPath_AddAll(sysIncPath, defSysIncPath); 1490 1491 Dir_SetSYSPATH(); 1492 if (!opts.noBuiltins) 1493 ReadBuiltinRules(); 1494 1495 posix_state = PS_MAYBE_NEXT_LINE; 1496 if (!Lst_IsEmpty(&opts.makefiles)) 1497 ReadAllMakefiles(&opts.makefiles); 1498 else 1499 ReadFirstDefaultMakefile(); 1500 } 1501 1502 /* Compute the dependency graph. */ 1503 static void 1504 main_PrepareMaking(void) 1505 { 1506 /* In particular suppress .depend for '-r -V .OBJDIR -f /dev/null' */ 1507 if (!opts.noBuiltins || opts.printVars == PVM_NONE) { 1508 makeDependfile = Var_Subst("${.MAKE.DEPENDFILE}", 1509 SCOPE_CMDLINE, VARE_WANTRES); 1510 if (makeDependfile[0] != '\0') { 1511 /* TODO: handle errors */ 1512 doing_depend = true; 1513 (void)ReadMakefile(makeDependfile); 1514 doing_depend = false; 1515 } 1516 } 1517 1518 if (enterFlagObj) 1519 printf("%s: Entering directory `%s'\n", progname, objdir); 1520 1521 MakeMode(); 1522 1523 { 1524 FStr makeflags = Var_Value(SCOPE_GLOBAL, MAKEFLAGS); 1525 Global_Append("MFLAGS", makeflags.str); 1526 FStr_Done(&makeflags); 1527 } 1528 1529 InitMaxJobs(); 1530 1531 if (!opts.compatMake && !forceJobs) 1532 opts.compatMake = true; 1533 1534 if (!opts.compatMake) 1535 Job_ServerStart(maxJobTokens, jp_0, jp_1); 1536 DEBUG5(JOB, "job_pipe %d %d, maxjobs %d, tokens %d, compat %d\n", 1537 jp_0, jp_1, opts.maxJobs, maxJobTokens, opts.compatMake ? 1 : 0); 1538 1539 if (opts.printVars == PVM_NONE) 1540 Main_ExportMAKEFLAGS(true); /* initial export */ 1541 1542 InitVpath(); 1543 1544 /* 1545 * Now that all search paths have been read for suffixes et al, it's 1546 * time to add the default search path to their lists... 1547 */ 1548 Suff_ExtendPaths(); 1549 1550 /* 1551 * Propagate attributes through :: dependency lists. 1552 */ 1553 Targ_Propagate(); 1554 1555 /* print the initial graph, if the user requested it */ 1556 if (DEBUG(GRAPH1)) 1557 Targ_PrintGraph(1); 1558 } 1559 1560 /* 1561 * Make the targets. 1562 * If the -v or -V options are given, print variables instead. 1563 * Return whether any of the targets is out-of-date. 1564 */ 1565 static bool 1566 main_Run(void) 1567 { 1568 if (opts.printVars != PVM_NONE) { 1569 /* print the values of any variables requested by the user */ 1570 doPrintVars(); 1571 return false; 1572 } else { 1573 return runTargets(); 1574 } 1575 } 1576 1577 /* Clean up after making the targets. */ 1578 static void 1579 main_CleanUp(void) 1580 { 1581 #ifdef CLEANUP 1582 Lst_DoneCall(&opts.variables, free); 1583 Lst_DoneCall(&opts.makefiles, free); 1584 Lst_DoneCall(&opts.create, free); 1585 #endif 1586 1587 if (DEBUG(GRAPH2)) 1588 Targ_PrintGraph(2); 1589 1590 Trace_Log(MAKEEND, NULL); 1591 1592 if (enterFlagObj) 1593 printf("%s: Leaving directory `%s'\n", progname, objdir); 1594 if (opts.enterFlag) 1595 printf("%s: Leaving directory `%s'\n", progname, curdir); 1596 1597 #ifdef USE_META 1598 meta_finish(); 1599 #endif 1600 Suff_End(); 1601 Targ_End(); 1602 Arch_End(); 1603 Var_End(); 1604 Parse_End(); 1605 Dir_End(); 1606 Job_End(); 1607 Trace_End(); 1608 Str_Intern_End(); 1609 } 1610 1611 /* Determine the exit code. */ 1612 static int 1613 main_Exit(bool outOfDate) 1614 { 1615 if (opts.strict && (main_errors > 0 || Parse_NumErrors() > 0)) 1616 return 2; /* Not 1 so -q can distinguish error */ 1617 return outOfDate ? 1 : 0; 1618 } 1619 1620 int 1621 main(int argc, char **argv) 1622 { 1623 bool outOfDate; 1624 1625 main_Init(argc, argv); 1626 main_ReadFiles(); 1627 main_PrepareMaking(); 1628 outOfDate = main_Run(); 1629 main_CleanUp(); 1630 return main_Exit(outOfDate); 1631 } 1632 1633 /* 1634 * Open and parse the given makefile, with all its side effects. 1635 * Return false if the file could not be opened. 1636 */ 1637 static bool 1638 ReadMakefile(const char *fname) 1639 { 1640 int fd; 1641 char *name, *path = NULL; 1642 1643 if (strcmp(fname, "-") == 0) { 1644 Parse_File("(stdin)", -1); 1645 Var_Set(SCOPE_INTERNAL, "MAKEFILE", ""); 1646 } else { 1647 /* if we've chdir'd, rebuild the path name */ 1648 if (strcmp(curdir, objdir) != 0 && *fname != '/') { 1649 path = str_concat3(curdir, "/", fname); 1650 fd = open(path, O_RDONLY); 1651 if (fd != -1) { 1652 fname = path; 1653 goto found; 1654 } 1655 free(path); 1656 1657 /* If curdir failed, try objdir (ala .depend) */ 1658 path = str_concat3(objdir, "/", fname); 1659 fd = open(path, O_RDONLY); 1660 if (fd != -1) { 1661 fname = path; 1662 goto found; 1663 } 1664 } else { 1665 fd = open(fname, O_RDONLY); 1666 if (fd != -1) 1667 goto found; 1668 } 1669 /* look in -I and system include directories. */ 1670 name = Dir_FindFile(fname, parseIncPath); 1671 if (name == NULL) { 1672 SearchPath *sysInc = Lst_IsEmpty(&sysIncPath->dirs) 1673 ? defSysIncPath : sysIncPath; 1674 name = Dir_FindFile(fname, sysInc); 1675 } 1676 if (name == NULL || (fd = open(name, O_RDONLY)) == -1) { 1677 free(name); 1678 free(path); 1679 return false; 1680 } 1681 fname = name; 1682 /* 1683 * set the MAKEFILE variable desired by System V fans -- the 1684 * placement of the setting here means it gets set to the last 1685 * makefile specified, as it is set by SysV make. 1686 */ 1687 found: 1688 if (!doing_depend) 1689 Var_Set(SCOPE_INTERNAL, "MAKEFILE", fname); 1690 Parse_File(fname, fd); 1691 } 1692 free(path); 1693 return true; 1694 } 1695 1696 /* 1697 * Execute the command in cmd, and return its output (only stdout, not 1698 * stderr, possibly empty). In the output, replace newlines with spaces. 1699 */ 1700 char * 1701 Cmd_Exec(const char *cmd, char **error) 1702 { 1703 const char *args[4]; /* Arguments for invoking the shell */ 1704 int pipefds[2]; 1705 int cpid; /* Child PID */ 1706 int pid; /* PID from wait() */ 1707 int status; /* command exit status */ 1708 Buffer buf; /* buffer to store the result */ 1709 ssize_t bytes_read; 1710 char *output; 1711 char *cp; 1712 int saved_errno; 1713 1714 if (shellName == NULL) 1715 Shell_Init(); 1716 1717 args[0] = shellName; 1718 args[1] = "-c"; 1719 args[2] = cmd; 1720 args[3] = NULL; 1721 DEBUG1(VAR, "Capturing the output of command \"%s\"\n", cmd); 1722 1723 if (pipe(pipefds) == -1) { 1724 *error = str_concat3( 1725 "Couldn't create pipe for \"", cmd, "\""); 1726 return bmake_strdup(""); 1727 } 1728 1729 Var_ReexportVars(); 1730 1731 switch (cpid = vfork()) { 1732 case 0: 1733 (void)close(pipefds[0]); 1734 (void)dup2(pipefds[1], STDOUT_FILENO); 1735 (void)close(pipefds[1]); 1736 1737 (void)execv(shellPath, UNCONST(args)); 1738 _exit(1); 1739 /* NOTREACHED */ 1740 1741 case -1: 1742 *error = str_concat3("Couldn't exec \"", cmd, "\""); 1743 return bmake_strdup(""); 1744 } 1745 1746 (void)close(pipefds[1]); /* No need for the writing half */ 1747 1748 saved_errno = 0; 1749 Buf_Init(&buf); 1750 1751 do { 1752 char result[BUFSIZ]; 1753 bytes_read = read(pipefds[0], result, sizeof result); 1754 if (bytes_read > 0) 1755 Buf_AddBytes(&buf, result, (size_t)bytes_read); 1756 } while (bytes_read > 0 || (bytes_read == -1 && errno == EINTR)); 1757 if (bytes_read == -1) 1758 saved_errno = errno; 1759 1760 (void)close(pipefds[0]); /* Close the input side of the pipe. */ 1761 1762 while ((pid = waitpid(cpid, &status, 0)) != cpid && pid >= 0) 1763 JobReapChild(pid, status, false); 1764 1765 if (Buf_EndsWith(&buf, '\n')) 1766 buf.data[buf.len - 1] = '\0'; 1767 1768 output = Buf_DoneData(&buf); 1769 for (cp = output; *cp != '\0'; cp++) 1770 if (*cp == '\n') 1771 *cp = ' '; 1772 1773 if (WIFSIGNALED(status)) 1774 *error = str_concat3("\"", cmd, "\" exited on a signal"); 1775 else if (WEXITSTATUS(status) != 0) 1776 *error = str_concat3( 1777 "\"", cmd, "\" returned non-zero status"); 1778 else if (saved_errno != 0) 1779 *error = str_concat3( 1780 "Couldn't read shell's output for \"", cmd, "\""); 1781 else 1782 *error = NULL; 1783 return output; 1784 } 1785 1786 /* 1787 * Print a printf-style error message. 1788 * 1789 * In default mode, this error message has no consequences, for compatibility 1790 * reasons, in particular it does not affect the exit status. Only in lint 1791 * mode (-dL) it does. 1792 */ 1793 void 1794 Error(const char *fmt, ...) 1795 { 1796 va_list ap; 1797 FILE *f; 1798 1799 f = opts.debug_file; 1800 if (f == stdout) 1801 f = stderr; 1802 (void)fflush(stdout); 1803 1804 for (;;) { 1805 fprintf(f, "%s: ", progname); 1806 va_start(ap, fmt); 1807 (void)vfprintf(f, fmt, ap); 1808 va_end(ap); 1809 (void)fprintf(f, "\n"); 1810 (void)fflush(f); 1811 if (f == stderr) 1812 break; 1813 f = stderr; 1814 } 1815 main_errors++; 1816 } 1817 1818 /* 1819 * Wait for any running jobs to finish, then produce an error message, 1820 * finally exit immediately. 1821 * 1822 * Exiting immediately differs from Parse_Error, which exits only after the 1823 * current top-level makefile has been parsed completely. 1824 */ 1825 void 1826 Fatal(const char *fmt, ...) 1827 { 1828 va_list ap; 1829 1830 if (jobsRunning) 1831 Job_Wait(); 1832 1833 (void)fflush(stdout); 1834 va_start(ap, fmt); 1835 (void)vfprintf(stderr, fmt, ap); 1836 va_end(ap); 1837 (void)fprintf(stderr, "\n"); 1838 (void)fflush(stderr); 1839 PrintStackTrace(true); 1840 1841 PrintOnError(NULL, "\n"); 1842 1843 if (DEBUG(GRAPH2) || DEBUG(GRAPH3)) 1844 Targ_PrintGraph(2); 1845 Trace_Log(MAKEERROR, NULL); 1846 exit(2); /* Not 1 so -q can distinguish error */ 1847 } 1848 1849 /* 1850 * Major exception once jobs are being created. 1851 * Kills all jobs, prints a message and exits. 1852 */ 1853 void 1854 Punt(const char *fmt, ...) 1855 { 1856 va_list ap; 1857 1858 (void)fflush(stdout); 1859 (void)fprintf(stderr, "%s: ", progname); 1860 va_start(ap, fmt); 1861 (void)vfprintf(stderr, fmt, ap); 1862 va_end(ap); 1863 (void)fprintf(stderr, "\n"); 1864 (void)fflush(stderr); 1865 1866 PrintOnError(NULL, "\n"); 1867 1868 DieHorribly(); 1869 } 1870 1871 /* Exit without giving a message. */ 1872 void 1873 DieHorribly(void) 1874 { 1875 if (jobsRunning) 1876 Job_AbortAll(); 1877 if (DEBUG(GRAPH2)) 1878 Targ_PrintGraph(2); 1879 Trace_Log(MAKEERROR, NULL); 1880 exit(2); /* Not 1 so -q can distinguish error */ 1881 } 1882 1883 /* 1884 * Called when aborting due to errors in child shell to signal abnormal exit. 1885 * The program exits. 1886 * Errors is the number of errors encountered in Make_Make. 1887 */ 1888 void 1889 Finish(int errs) 1890 { 1891 if (shouldDieQuietly(NULL, -1)) 1892 exit(2); 1893 Fatal("%d error%s", errs, errs == 1 ? "" : "s"); 1894 } 1895 1896 int 1897 unlink_file(const char *file) 1898 { 1899 struct stat st; 1900 1901 if (lstat(file, &st) == -1) 1902 return -1; 1903 1904 if (S_ISDIR(st.st_mode)) { 1905 /* 1906 * POSIX says for unlink: "The path argument shall not name 1907 * a directory unless [...]". 1908 */ 1909 errno = EISDIR; 1910 return -1; 1911 } 1912 return unlink(file); 1913 } 1914 1915 static void 1916 write_all(int fd, const void *data, size_t n) 1917 { 1918 const char *mem = data; 1919 1920 while (n > 0) { 1921 ssize_t written = write(fd, mem, n); 1922 /* XXX: Should this EAGAIN be EINTR? */ 1923 if (written == -1 && errno == EAGAIN) 1924 continue; 1925 if (written == -1) 1926 break; 1927 mem += written; 1928 n -= (size_t)written; 1929 } 1930 } 1931 1932 /* Print why exec failed, avoiding stdio. */ 1933 void MAKE_ATTR_DEAD 1934 execDie(const char *af, const char *av) 1935 { 1936 Buffer buf; 1937 1938 Buf_Init(&buf); 1939 Buf_AddStr(&buf, progname); 1940 Buf_AddStr(&buf, ": "); 1941 Buf_AddStr(&buf, af); 1942 Buf_AddStr(&buf, "("); 1943 Buf_AddStr(&buf, av); 1944 Buf_AddStr(&buf, ") failed ("); 1945 Buf_AddStr(&buf, strerror(errno)); 1946 Buf_AddStr(&buf, ")\n"); 1947 1948 write_all(STDERR_FILENO, buf.data, buf.len); 1949 1950 Buf_Done(&buf); 1951 _exit(1); 1952 } 1953 1954 static void 1955 purge_relative_cached_realpaths(void) 1956 { 1957 HashEntry *he, *nhe; 1958 HashIter hi; 1959 1960 HashIter_Init(&hi, &cached_realpaths); 1961 he = HashIter_Next(&hi); 1962 while (he != NULL) { 1963 nhe = HashIter_Next(&hi); 1964 if (he->key[0] != '/') { 1965 DEBUG1(DIR, "cached_realpath: purging %s\n", he->key); 1966 HashTable_DeleteEntry(&cached_realpaths, he); 1967 /* 1968 * XXX: What about the allocated he->value? Either 1969 * free them or document why they cannot be freed. 1970 */ 1971 } 1972 he = nhe; 1973 } 1974 } 1975 1976 const char * 1977 cached_realpath(const char *pathname, char *resolved) 1978 { 1979 const char *rp; 1980 1981 if (pathname == NULL || pathname[0] == '\0') 1982 return NULL; 1983 1984 rp = HashTable_FindValue(&cached_realpaths, pathname); 1985 if (rp != NULL) { 1986 /* a hit */ 1987 strncpy(resolved, rp, MAXPATHLEN); 1988 resolved[MAXPATHLEN - 1] = '\0'; 1989 return resolved; 1990 } 1991 1992 rp = realpath(pathname, resolved); 1993 if (rp != NULL) { 1994 HashTable_Set(&cached_realpaths, pathname, bmake_strdup(rp)); 1995 DEBUG2(DIR, "cached_realpath: %s -> %s\n", pathname, rp); 1996 return resolved; 1997 } 1998 1999 /* should we negative-cache? */ 2000 return NULL; 2001 } 2002 2003 /* 2004 * Return true if we should die without noise. 2005 * For example our failing child was a sub-make or failure happened elsewhere. 2006 */ 2007 bool 2008 shouldDieQuietly(GNode *gn, int bf) 2009 { 2010 static int quietly = -1; 2011 2012 if (quietly < 0) { 2013 if (DEBUG(JOB) || 2014 !GetBooleanExpr("${.MAKE.DIE_QUIETLY}", true)) 2015 quietly = 0; 2016 else if (bf >= 0) 2017 quietly = bf; 2018 else 2019 quietly = (gn != NULL && (gn->type & OP_MAKE)) ? 1 : 0; 2020 } 2021 return quietly != 0; 2022 } 2023 2024 static void 2025 SetErrorVars(GNode *gn) 2026 { 2027 StringListNode *ln; 2028 2029 /* 2030 * We can print this even if there is no .ERROR target. 2031 */ 2032 Global_Set(".ERROR_TARGET", gn->name); 2033 Global_Delete(".ERROR_CMD"); 2034 2035 for (ln = gn->commands.first; ln != NULL; ln = ln->next) { 2036 const char *cmd = ln->datum; 2037 2038 if (cmd == NULL) 2039 break; 2040 Global_Append(".ERROR_CMD", cmd); 2041 } 2042 } 2043 2044 /* 2045 * Print some helpful information in case of an error. 2046 * The caller should exit soon after calling this function. 2047 */ 2048 void 2049 PrintOnError(GNode *gn, const char *msg) 2050 { 2051 static GNode *errorNode = NULL; 2052 2053 if (DEBUG(HASH)) { 2054 Targ_Stats(); 2055 Var_Stats(); 2056 } 2057 2058 if (errorNode != NULL) 2059 return; /* we've been here! */ 2060 2061 printf("%s%s: stopped in %s\n", msg, progname, curdir); 2062 2063 /* we generally want to keep quiet if a sub-make died */ 2064 if (shouldDieQuietly(gn, -1)) 2065 return; 2066 2067 if (gn != NULL) 2068 SetErrorVars(gn); 2069 2070 { 2071 char *errorVarsValues = Var_Subst( 2072 "${MAKE_PRINT_VAR_ON_ERROR:@v@$v='${$v}'\n@}", 2073 SCOPE_GLOBAL, VARE_WANTRES); 2074 /* TODO: handle errors */ 2075 printf("%s", errorVarsValues); 2076 free(errorVarsValues); 2077 } 2078 2079 fflush(stdout); 2080 2081 /* 2082 * Finally, see if there is a .ERROR target, and run it if so. 2083 */ 2084 errorNode = Targ_FindNode(".ERROR"); 2085 if (errorNode != NULL) { 2086 errorNode->type |= OP_SPECIAL; 2087 Compat_Make(errorNode, errorNode); 2088 } 2089 } 2090 2091 void 2092 Main_ExportMAKEFLAGS(bool first) 2093 { 2094 static bool once = true; 2095 char *flags; 2096 2097 if (once != first) 2098 return; 2099 once = false; 2100 2101 flags = Var_Subst( 2102 "${.MAKEFLAGS} ${.MAKEOVERRIDES:O:u:@v@$v=${$v:Q}@}", 2103 SCOPE_CMDLINE, VARE_WANTRES); 2104 /* TODO: handle errors */ 2105 if (flags[0] != '\0') { 2106 #ifdef POSIX 2107 setenv("MAKEFLAGS", flags, 1); 2108 #else 2109 setenv("MAKE", flags, 1); 2110 #endif 2111 } 2112 } 2113 2114 char * 2115 getTmpdir(void) 2116 { 2117 static char *tmpdir = NULL; 2118 struct stat st; 2119 2120 if (tmpdir != NULL) 2121 return tmpdir; 2122 2123 /* Honor $TMPDIR if it is valid, strip a trailing '/'. */ 2124 tmpdir = Var_Subst("${TMPDIR:tA:U" _PATH_TMP ":S,/$,,W}/", 2125 SCOPE_GLOBAL, VARE_WANTRES); 2126 /* TODO: handle errors */ 2127 2128 if (stat(tmpdir, &st) < 0 || !S_ISDIR(st.st_mode)) { 2129 free(tmpdir); 2130 tmpdir = bmake_strdup(_PATH_TMP); 2131 } 2132 return tmpdir; 2133 } 2134 2135 /* 2136 * Create and open a temp file using "pattern". 2137 * If out_fname is provided, set it to a copy of the filename created. 2138 * Otherwise unlink the file once open. 2139 */ 2140 int 2141 mkTempFile(const char *pattern, char *tfile, size_t tfile_sz) 2142 { 2143 static char *tmpdir = NULL; 2144 char tbuf[MAXPATHLEN]; 2145 int fd; 2146 2147 if (pattern == NULL) 2148 pattern = TMPPAT; 2149 if (tmpdir == NULL) 2150 tmpdir = getTmpdir(); 2151 if (tfile == NULL) { 2152 tfile = tbuf; 2153 tfile_sz = sizeof tbuf; 2154 } 2155 2156 if (pattern[0] == '/') 2157 snprintf(tfile, tfile_sz, "%s", pattern); 2158 else 2159 snprintf(tfile, tfile_sz, "%s%s", tmpdir, pattern); 2160 2161 if ((fd = mkstemp(tfile)) < 0) 2162 Punt("Could not create temporary file %s: %s", tfile, 2163 strerror(errno)); 2164 if (tfile == tbuf) 2165 unlink(tfile); /* we just want the descriptor */ 2166 2167 return fd; 2168 } 2169 2170 /* 2171 * Convert a string representation of a boolean into a boolean value. 2172 * Anything that looks like "No", "False", "Off", "0" etc. is false, 2173 * the empty string is the fallback, everything else is true. 2174 */ 2175 bool 2176 ParseBoolean(const char *s, bool fallback) 2177 { 2178 char ch = ch_tolower(s[0]); 2179 if (ch == '\0') 2180 return fallback; 2181 if (ch == '0' || ch == 'f' || ch == 'n') 2182 return false; 2183 if (ch == 'o') 2184 return ch_tolower(s[1]) != 'f'; 2185 return true; 2186 } 2187
Indexes created Mon Sep 22 13:09:51 GMT 2025