parse.c revision 1.108
1 /* $NetBSD: parse.c,v 1.108 2006/01/22 19:54:55 dsl 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: parse.c,v 1.108 2006/01/22 19:54:55 dsl Exp $"; 73 #else 74 #include <sys/cdefs.h> 75 #ifndef lint 76 #if 0 77 static char sccsid[] = "@(#)parse.c 8.3 (Berkeley) 3/19/94"; 78 #else 79 __RCSID("$NetBSD: parse.c,v 1.108 2006/01/22 19:54:55 dsl Exp $"); 80 #endif 81 #endif /* not lint */ 82 #endif 83 84 /*- 85 * parse.c -- 86 * Functions to parse a makefile. 87 * 88 * One function, Parse_Init, must be called before any functions 89 * in this module are used. After that, the function Parse_File is the 90 * main entry point and controls most of the other functions in this 91 * module. 92 * 93 * Most important structures are kept in Lsts. Directories for 94 * the #include "..." function are kept in the 'parseIncPath' Lst, while 95 * those for the #include <...> are kept in the 'sysIncPath' Lst. The 96 * targets currently being defined are kept in the 'targets' Lst. 97 * 98 * The variables 'fname' and 'lineno' are used to track the name 99 * of the current file and the line number in that file so that error 100 * messages can be more meaningful. 101 * 102 * Interface: 103 * Parse_Init Initialization function which must be 104 * called before anything else in this module 105 * is used. 106 * 107 * Parse_End Cleanup the module 108 * 109 * Parse_File Function used to parse a makefile. It must 110 * be given the name of the file, which should 111 * already have been opened, and a function 112 * to call to read a character from the file. 113 * 114 * Parse_IsVar Returns TRUE if the given line is a 115 * variable assignment. Used by MainParseArgs 116 * to determine if an argument is a target 117 * or a variable assignment. Used internally 118 * for pretty much the same thing... 119 * 120 * Parse_Error Function called when an error occurs in 121 * parsing. Used by the variable and 122 * conditional modules. 123 * Parse_MainName Returns a Lst of the main target to create. 124 */ 125 126 #include <ctype.h> 127 #include <errno.h> 128 #include <stdarg.h> 129 #include <stdio.h> 130 131 #include "make.h" 132 #include "hash.h" 133 #include "dir.h" 134 #include "job.h" 135 #include "buf.h" 136 #include "pathnames.h" 137 138 /* 139 * These values are returned by ParseEOF to tell Parse_File whether to 140 * CONTINUE parsing, i.e. it had only reached the end of an include file, 141 * or if it's DONE. 142 */ 143 #define CONTINUE 1 144 #define DONE 0 145 static Lst targets; /* targets we're working on */ 146 #ifdef CLEANUP 147 static Lst targCmds; /* command lines for targets */ 148 #endif 149 static Boolean inLine; /* true if currently in a dependency 150 * line or its commands */ 151 typedef struct { 152 char *str; 153 char *ptr; 154 } PTR; 155 156 static int fatals = 0; 157 158 static GNode *mainNode; /* The main target to create. This is the 159 * first target on the first dependency 160 * line in the first makefile */ 161 typedef struct IFile { 162 char *fname; /* name of previous file */ 163 int lineno; /* saved line number */ 164 FILE * F; /* the open stream */ 165 PTR * P; /* the char pointer */ 166 } IFile; 167 168 static IFile curFile; 169 170 171 /* 172 * Definitions for handling #include specifications 173 */ 174 175 static Lst includes; /* stack of IFiles generated by 176 * #includes */ 177 Lst parseIncPath; /* list of directories for "..." includes */ 178 Lst sysIncPath; /* list of directories for <...> includes */ 179 Lst defIncPath; /* default directories for <...> includes */ 180 181 /*- 182 * specType contains the SPECial TYPE of the current target. It is 183 * Not if the target is unspecial. If it *is* special, however, the children 184 * are linked as children of the parent but not vice versa. This variable is 185 * set in ParseDoDependency 186 */ 187 typedef enum { 188 Begin, /* .BEGIN */ 189 Default, /* .DEFAULT */ 190 End, /* .END */ 191 Ignore, /* .IGNORE */ 192 Includes, /* .INCLUDES */ 193 Interrupt, /* .INTERRUPT */ 194 Libs, /* .LIBS */ 195 MFlags, /* .MFLAGS or .MAKEFLAGS */ 196 Main, /* .MAIN and we don't have anything user-specified to 197 * make */ 198 NoExport, /* .NOEXPORT */ 199 NoPath, /* .NOPATH */ 200 Not, /* Not special */ 201 NotParallel, /* .NOTPARALLEL */ 202 Null, /* .NULL */ 203 ExObjdir, /* .OBJDIR */ 204 Order, /* .ORDER */ 205 Parallel, /* .PARALLEL */ 206 ExPath, /* .PATH */ 207 Phony, /* .PHONY */ 208 #ifdef POSIX 209 Posix, /* .POSIX */ 210 #endif 211 Precious, /* .PRECIOUS */ 212 ExShell, /* .SHELL */ 213 Silent, /* .SILENT */ 214 SingleShell, /* .SINGLESHELL */ 215 Suffixes, /* .SUFFIXES */ 216 Wait, /* .WAIT */ 217 Attribute /* Generic attribute */ 218 } ParseSpecial; 219 220 static ParseSpecial specType; 221 static int waiting; 222 223 #define LPAREN '(' 224 #define RPAREN ')' 225 /* 226 * Predecessor node for handling .ORDER. Initialized to NILGNODE when .ORDER 227 * seen, then set to each successive source on the line. 228 */ 229 static GNode *predecessor; 230 231 /* 232 * The parseKeywords table is searched using binary search when deciding 233 * if a target or source is special. The 'spec' field is the ParseSpecial 234 * type of the keyword ("Not" if the keyword isn't special as a target) while 235 * the 'op' field is the operator to apply to the list of targets if the 236 * keyword is used as a source ("0" if the keyword isn't special as a source) 237 */ 238 static struct { 239 const char *name; /* Name of keyword */ 240 ParseSpecial spec; /* Type when used as a target */ 241 int op; /* Operator when used as a source */ 242 } parseKeywords[] = { 243 { ".BEGIN", Begin, 0 }, 244 { ".DEFAULT", Default, 0 }, 245 { ".END", End, 0 }, 246 { ".EXEC", Attribute, OP_EXEC }, 247 { ".IGNORE", Ignore, OP_IGNORE }, 248 { ".INCLUDES", Includes, 0 }, 249 { ".INTERRUPT", Interrupt, 0 }, 250 { ".INVISIBLE", Attribute, OP_INVISIBLE }, 251 { ".JOIN", Attribute, OP_JOIN }, 252 { ".LIBS", Libs, 0 }, 253 { ".MADE", Attribute, OP_MADE }, 254 { ".MAIN", Main, 0 }, 255 { ".MAKE", Attribute, OP_MAKE }, 256 { ".MAKEFLAGS", MFlags, 0 }, 257 { ".MFLAGS", MFlags, 0 }, 258 { ".NOPATH", NoPath, OP_NOPATH }, 259 { ".NOTMAIN", Attribute, OP_NOTMAIN }, 260 { ".NOTPARALLEL", NotParallel, 0 }, 261 { ".NO_PARALLEL", NotParallel, 0 }, 262 { ".NULL", Null, 0 }, 263 { ".OBJDIR", ExObjdir, 0 }, 264 { ".OPTIONAL", Attribute, OP_OPTIONAL }, 265 { ".ORDER", Order, 0 }, 266 { ".PARALLEL", Parallel, 0 }, 267 { ".PATH", ExPath, 0 }, 268 { ".PHONY", Phony, OP_PHONY }, 269 #ifdef POSIX 270 { ".POSIX", Posix, 0 }, 271 #endif 272 { ".PRECIOUS", Precious, OP_PRECIOUS }, 273 { ".RECURSIVE", Attribute, OP_MAKE }, 274 { ".SHELL", ExShell, 0 }, 275 { ".SILENT", Silent, OP_SILENT }, 276 { ".SINGLESHELL", SingleShell, 0 }, 277 { ".SUFFIXES", Suffixes, 0 }, 278 { ".USE", Attribute, OP_USE }, 279 { ".USEBEFORE", Attribute, OP_USEBEFORE }, 280 { ".WAIT", Wait, 0 }, 281 }; 282 283 /* 284 * Used by ParseDoSpecialSrc() 285 */ 286 typedef struct { 287 int op; 288 char *src; 289 Lst allsrc; 290 } SpecialSrc; 291 292 static int ParseIsEscaped(const char *, const char *); 293 static void ParseErrorInternal(char *, size_t, int, const char *, ...) 294 __attribute__((__format__(__printf__, 4, 5))); 295 static void ParseVErrorInternal(char *, size_t, int, const char *, va_list) 296 __attribute__((__format__(__printf__, 4, 0))); 297 static int ParseFindKeyword(char *); 298 static int ParseLinkSrc(ClientData, ClientData); 299 static int ParseDoOp(ClientData, ClientData); 300 static int ParseAddDep(ClientData, ClientData); 301 static int ParseDoSpecialSrc(ClientData, ClientData); 302 static void ParseDoSrc(int, char *, Lst, Boolean); 303 static int ParseFindMain(ClientData, ClientData); 304 static int ParseAddDir(ClientData, ClientData); 305 static int ParseClearPath(ClientData, ClientData); 306 static void ParseDoDependency(char *); 307 static int ParseAddCmd(ClientData, ClientData); 308 static inline int ParseReadc(void); 309 static void ParseUnreadc(int); 310 static void ParseHasCommands(ClientData); 311 static void ParseDoInclude(char *); 312 static void ParseSetParseFile(char *); 313 #ifdef SYSVINCLUDE 314 static void ParseTraditionalInclude(char *); 315 #endif 316 static int ParseEOF(int); 317 static char *ParseReadLine(void); 318 static char *ParseSkipLine(int, int); 319 static void ParseFinishLine(void); 320 static void ParseMark(GNode *); 321 322 extern int maxJobs; 323 324 325 /*- 326 *---------------------------------------------------------------------- 327 * ParseIsEscaped -- 328 * Check if the current character is escaped on the current line 329 * 330 * Results: 331 * 0 if the character is not backslash escaped, 1 otherwise 332 * 333 * Side Effects: 334 * None 335 *---------------------------------------------------------------------- 336 */ 337 static int 338 ParseIsEscaped(const char *line, const char *c) 339 { 340 int active = 0; 341 for (;;) { 342 if (line == c) 343 return active; 344 if (*--c != '\\') 345 return active; 346 active = !active; 347 } 348 } 349 350 /*- 351 *---------------------------------------------------------------------- 352 * ParseFindKeyword -- 353 * Look in the table of keywords for one matching the given string. 354 * 355 * Input: 356 * str String to find 357 * 358 * Results: 359 * The index of the keyword, or -1 if it isn't there. 360 * 361 * Side Effects: 362 * None 363 *---------------------------------------------------------------------- 364 */ 365 static int 366 ParseFindKeyword(char *str) 367 { 368 int start, end, cur; 369 int diff; 370 371 start = 0; 372 end = (sizeof(parseKeywords)/sizeof(parseKeywords[0])) - 1; 373 374 do { 375 cur = start + ((end - start) / 2); 376 diff = strcmp(str, parseKeywords[cur].name); 377 378 if (diff == 0) { 379 return (cur); 380 } else if (diff < 0) { 381 end = cur - 1; 382 } else { 383 start = cur + 1; 384 } 385 } while (start <= end); 386 return (-1); 387 } 388 389 /*- 390 * ParseVErrorInternal -- 391 * Error message abort function for parsing. Prints out the context 392 * of the error (line number and file) as well as the message with 393 * two optional arguments. 394 * 395 * Results: 396 * None 397 * 398 * Side Effects: 399 * "fatals" is incremented if the level is PARSE_FATAL. 400 */ 401 /* VARARGS */ 402 static void 403 ParseVErrorInternal(char *cfname, size_t clineno, int type, const char *fmt, 404 va_list ap) 405 { 406 static Boolean fatal_warning_error_printed = FALSE; 407 408 (void)fprintf(stderr, "%s: \"", progname); 409 410 if (*cfname != '/') { 411 char *cp; 412 const char *dir; 413 414 /* 415 * Nothing is more anoying than not knowing which Makefile 416 * is the culprit. 417 */ 418 dir = Var_Value(".PARSEDIR", VAR_GLOBAL, &cp); 419 if (dir == NULL || *dir == '\0' || 420 (*dir == '.' && dir[1] == '\0')) 421 dir = Var_Value(".CURDIR", VAR_GLOBAL, &cp); 422 if (dir == NULL) 423 dir = "."; 424 425 (void)fprintf(stderr, "%s/%s", dir, cfname); 426 } else 427 (void)fprintf(stderr, "%s", cfname); 428 429 (void)fprintf(stderr, "\" line %d: ", (int)clineno); 430 if (type == PARSE_WARNING) 431 (void)fprintf(stderr, "warning: "); 432 (void)vfprintf(stderr, fmt, ap); 433 (void)fprintf(stderr, "\n"); 434 (void)fflush(stderr); 435 if (type == PARSE_FATAL || parseWarnFatal) 436 fatals += 1; 437 if (parseWarnFatal && !fatal_warning_error_printed) { 438 Error("parsing warnings being treated as errors"); 439 fatal_warning_error_printed = TRUE; 440 } 441 } 442 443 /*- 444 * ParseErrorInternal -- 445 * Error function 446 * 447 * Results: 448 * None 449 * 450 * Side Effects: 451 * None 452 */ 453 /* VARARGS */ 454 static void 455 ParseErrorInternal(char *cfname, size_t clineno, int type, const char *fmt, ...) 456 { 457 va_list ap; 458 459 va_start(ap, fmt); 460 ParseVErrorInternal(cfname, clineno, type, fmt, ap); 461 va_end(ap); 462 } 463 464 /*- 465 * Parse_Error -- 466 * External interface to ParseErrorInternal; uses the default filename 467 * Line number. 468 * 469 * Results: 470 * None 471 * 472 * Side Effects: 473 * None 474 */ 475 /* VARARGS */ 476 void 477 Parse_Error(int type, const char *fmt, ...) 478 { 479 va_list ap; 480 481 va_start(ap, fmt); 482 ParseVErrorInternal(curFile.fname, curFile.lineno, type, fmt, ap); 483 va_end(ap); 484 } 485 486 /*- 487 *--------------------------------------------------------------------- 488 * ParseLinkSrc -- 489 * Link the parent node to its new child. Used in a Lst_ForEach by 490 * ParseDoDependency. If the specType isn't 'Not', the parent 491 * isn't linked as a parent of the child. 492 * 493 * Input: 494 * pgnp The parent node 495 * cgpn The child node 496 * 497 * Results: 498 * Always = 0 499 * 500 * Side Effects: 501 * New elements are added to the parents list of cgn and the 502 * children list of cgn. the unmade field of pgn is updated 503 * to reflect the additional child. 504 *--------------------------------------------------------------------- 505 */ 506 static int 507 ParseLinkSrc(ClientData pgnp, ClientData cgnp) 508 { 509 GNode *pgn = (GNode *)pgnp; 510 GNode *cgn = (GNode *)cgnp; 511 512 if ((pgn->type & OP_DOUBLEDEP) && !Lst_IsEmpty (pgn->cohorts)) 513 pgn = (GNode *)Lst_Datum(Lst_Last(pgn->cohorts)); 514 (void)Lst_AtEnd(pgn->children, (ClientData)cgn); 515 if (specType == Not) 516 (void)Lst_AtEnd(cgn->parents, (ClientData)pgn); 517 pgn->unmade += 1; 518 return (0); 519 } 520 521 /*- 522 *--------------------------------------------------------------------- 523 * ParseDoOp -- 524 * Apply the parsed operator to the given target node. Used in a 525 * Lst_ForEach call by ParseDoDependency once all targets have 526 * been found and their operator parsed. If the previous and new 527 * operators are incompatible, a major error is taken. 528 * 529 * Input: 530 * gnp The node to which the operator is to be applied 531 * opp The operator to apply 532 * 533 * Results: 534 * Always 0 535 * 536 * Side Effects: 537 * The type field of the node is altered to reflect any new bits in 538 * the op. 539 *--------------------------------------------------------------------- 540 */ 541 static int 542 ParseDoOp(ClientData gnp, ClientData opp) 543 { 544 GNode *gn = (GNode *)gnp; 545 int op = *(int *)opp; 546 /* 547 * If the dependency mask of the operator and the node don't match and 548 * the node has actually had an operator applied to it before, and 549 * the operator actually has some dependency information in it, complain. 550 */ 551 if (((op & OP_OPMASK) != (gn->type & OP_OPMASK)) && 552 !OP_NOP(gn->type) && !OP_NOP(op)) 553 { 554 Parse_Error(PARSE_FATAL, "Inconsistent operator for %s", gn->name); 555 return (1); 556 } 557 558 if ((op == OP_DOUBLEDEP) && ((gn->type & OP_OPMASK) == OP_DOUBLEDEP)) { 559 /* 560 * If the node was the object of a :: operator, we need to create a 561 * new instance of it for the children and commands on this dependency 562 * line. The new instance is placed on the 'cohorts' list of the 563 * initial one (note the initial one is not on its own cohorts list) 564 * and the new instance is linked to all parents of the initial 565 * instance. 566 */ 567 GNode *cohort; 568 569 /* 570 * Propagate copied bits to the initial node. They'll be propagated 571 * back to the rest of the cohorts later. 572 */ 573 gn->type |= op & ~OP_OPMASK; 574 575 cohort = Targ_NewGN(gn->name); 576 /* 577 * Make the cohort invisible as well to avoid duplicating it into 578 * other variables. True, parents of this target won't tend to do 579 * anything with their local variables, but better safe than 580 * sorry. (I think this is pointless now, since the relevant list 581 * traversals will no longer see this node anyway. -mycroft) 582 */ 583 cohort->type = op | OP_INVISIBLE; 584 (void)Lst_AtEnd(gn->cohorts, (ClientData)cohort); 585 cohort->centurion = gn; 586 gn->unmade_cohorts += 1; 587 } else { 588 /* 589 * We don't want to nuke any previous flags (whatever they were) so we 590 * just OR the new operator into the old 591 */ 592 gn->type |= op; 593 } 594 595 return (0); 596 } 597 598 /*- 599 *--------------------------------------------------------------------- 600 * ParseAddDep -- 601 * Check if the pair of GNodes given needs to be synchronized. 602 * This has to be when two nodes are on different sides of a 603 * .WAIT directive. 604 * 605 * Results: 606 * Returns 1 if the two targets need to be ordered, 0 otherwise. 607 * If it returns 1, the search can stop 608 * 609 * Side Effects: 610 * A dependency can be added between the two nodes. 611 * 612 *--------------------------------------------------------------------- 613 */ 614 static int 615 ParseAddDep(ClientData pp, ClientData sp) 616 { 617 GNode *p = (GNode *)pp; 618 GNode *s = (GNode *)sp; 619 620 if (DEBUG(PARSE)) 621 printf("ParseAddDep: %p(%s):%d %p(%s):%d\n", 622 p, p->name, p->order, s, s->name, s->order); 623 if (p->order < s->order) { 624 /* 625 * XXX: This can cause loops, and loops can cause unmade targets, 626 * but checking is tedious, and the debugging output can show the 627 * problem 628 */ 629 (void)Lst_AtEnd(p->successors, (ClientData)s); 630 (void)Lst_AtEnd(s->preds, (ClientData)p); 631 return 0; 632 } 633 else 634 return 1; 635 } 636 637 /* - 638 *--------------------------------------------------------------------- 639 * ParseDoSpecialSrc -- 640 * ParseDoSrc struck an unexpanded variable in a src. 641 * The most likely reason is a src that refers to .TARGET or 642 * .PREFIX so we get called to set those for each target 643 * and then call ParseDoSrc again to do the real work. 644 * 645 * Input: 646 * tp A target GNode * 647 * sp A SpecialSrc * which contains the args we need 648 * for ParseDoSrc. 649 * 650 * Results: 651 * Goodness 652 * 653 * Side Effects: 654 * The target GNode will have .TARGET and .PREFIX set, this seems 655 * harmless. 656 */ 657 static int 658 ParseDoSpecialSrc(ClientData tp, ClientData sp) 659 { 660 GNode *tn = (GNode *)tp; 661 GNode *gn; 662 SpecialSrc *ss = (SpecialSrc *)sp; 663 char *cp; 664 char *cp2; 665 char *pref; 666 667 /* 668 * If the target is a suffix rule, leave it alone. 669 */ 670 if (Suff_IsTransform(tn->name)) { 671 ParseDoSrc(ss->op, ss->src, ss->allsrc, FALSE); /* don't come back */ 672 return 0; 673 } 674 Var_Set(TARGET, tn->name, tn, 0); 675 if ((pref = strrchr(tn->name, '/'))) 676 pref++; 677 else 678 pref = tn->name; 679 if ((cp2 = strchr(pref, '.')) > pref) { 680 cp = estrdup(pref); 681 cp[cp2 - pref] = '\0'; 682 Var_Set(PREFIX, cp, tn, 0); 683 free(cp); 684 } else 685 Var_Set(PREFIX, pref, tn, 0); 686 cp = Var_Subst(NULL, ss->src, tn, FALSE); 687 if (strchr(cp, '$')) { 688 Parse_Error(PARSE_WARNING, "Cannot resolve '%s' here", ss->src); 689 ParseDoSrc(ss->op, ss->src, ss->allsrc, FALSE); /* don't come back */ 690 return 1; /* stop list traversal */ 691 } 692 /* 693 * We don't want to make every target dependent on sources for 694 * other targets. This is the bit of ParseDoSrc which is relevant. 695 * The main difference is we don't link the resolved src to all targets. 696 */ 697 gn = Targ_FindNode(cp, TARG_CREATE); 698 if (ss->op) { 699 gn->type |= ss->op; 700 } else { 701 ParseLinkSrc((ClientData)tn, (ClientData)gn); 702 } 703 if (DEBUG(PARSE)) 704 printf("ParseDoSpecialSrc: set %p(%s):%d (was %d)\n", 705 gn, gn->name, waiting, gn->order); 706 gn->order = waiting; 707 (void)Lst_AtEnd(ss->allsrc, (ClientData)gn); 708 if (waiting) { 709 Lst_ForEach(ss->allsrc, ParseAddDep, (ClientData)gn); 710 } 711 return 0; 712 } 713 714 715 /*- 716 *--------------------------------------------------------------------- 717 * ParseDoSrc -- 718 * Given the name of a source, figure out if it is an attribute 719 * and apply it to the targets if it is. Else decide if there is 720 * some attribute which should be applied *to* the source because 721 * of some special target and apply it if so. Otherwise, make the 722 * source be a child of the targets in the list 'targets' 723 * 724 * Input: 725 * tOp operator (if any) from special targets 726 * src name of the source to handle 727 * allsrc List of all sources to wait for 728 * resolve boolean - should we try and resolve .TARGET refs. 729 * 730 * Results: 731 * None 732 * 733 * Side Effects: 734 * Operator bits may be added to the list of targets or to the source. 735 * The targets may have a new source added to their lists of children. 736 *--------------------------------------------------------------------- 737 */ 738 static void 739 ParseDoSrc(int tOp, char *src, Lst allsrc, Boolean resolve) 740 { 741 GNode *gn = NULL; 742 743 if (*src == '.' && isupper ((unsigned char)src[1])) { 744 int keywd = ParseFindKeyword(src); 745 if (keywd != -1) { 746 int op = parseKeywords[keywd].op; 747 if (op != 0) { 748 Lst_ForEach(targets, ParseDoOp, (ClientData)&op); 749 return; 750 } 751 if (parseKeywords[keywd].spec == Wait) { 752 waiting++; 753 return; 754 } 755 } 756 } 757 758 switch (specType) { 759 case Main: 760 /* 761 * If we have noted the existence of a .MAIN, it means we need 762 * to add the sources of said target to the list of things 763 * to create. The string 'src' is likely to be free, so we 764 * must make a new copy of it. Note that this will only be 765 * invoked if the user didn't specify a target on the command 766 * line. This is to allow #ifmake's to succeed, or something... 767 */ 768 (void)Lst_AtEnd(create, (ClientData)estrdup(src)); 769 /* 770 * Add the name to the .TARGETS variable as well, so the user cna 771 * employ that, if desired. 772 */ 773 Var_Append(".TARGETS", src, VAR_GLOBAL); 774 return; 775 776 case Order: 777 /* 778 * Create proper predecessor/successor links between the previous 779 * source and the current one. 780 */ 781 gn = Targ_FindNode(src, TARG_CREATE); 782 if (predecessor != NILGNODE) { 783 (void)Lst_AtEnd(predecessor->successors, (ClientData)gn); 784 (void)Lst_AtEnd(gn->preds, (ClientData)predecessor); 785 } 786 /* 787 * The current source now becomes the predecessor for the next one. 788 */ 789 predecessor = gn; 790 break; 791 792 default: 793 /* 794 * If the source is not an attribute, we need to find/create 795 * a node for it. After that we can apply any operator to it 796 * from a special target or link it to its parents, as 797 * appropriate. 798 * 799 * In the case of a source that was the object of a :: operator, 800 * the attribute is applied to all of its instances (as kept in 801 * the 'cohorts' list of the node) or all the cohorts are linked 802 * to all the targets. 803 */ 804 if (resolve && strchr(src, '$')) { 805 SpecialSrc ss; 806 807 ss.op = tOp; 808 ss.src = src; 809 ss.allsrc = allsrc; 810 811 /* 812 * If src cannot be fully resolved, we'll be called again 813 * with resolve==FALSE. 814 */ 815 Lst_ForEach(targets, ParseDoSpecialSrc, (ClientData)&ss); 816 return; 817 } 818 gn = Targ_FindNode(src, TARG_CREATE); 819 if (tOp) { 820 gn->type |= tOp; 821 } else { 822 Lst_ForEach(targets, ParseLinkSrc, (ClientData)gn); 823 } 824 break; 825 } 826 827 if (DEBUG(PARSE)) 828 printf("ParseDoSrc: set %p(%s):%d (was %d)\n", 829 gn, gn->name, waiting, gn->order); 830 gn->order = waiting; 831 (void)Lst_AtEnd(allsrc, (ClientData)gn); 832 if (waiting) { 833 Lst_ForEach(allsrc, ParseAddDep, (ClientData)gn); 834 } 835 } 836 837 /*- 838 *----------------------------------------------------------------------- 839 * ParseFindMain -- 840 * Find a real target in the list and set it to be the main one. 841 * Called by ParseDoDependency when a main target hasn't been found 842 * yet. 843 * 844 * Input: 845 * gnp Node to examine 846 * 847 * Results: 848 * 0 if main not found yet, 1 if it is. 849 * 850 * Side Effects: 851 * mainNode is changed and Targ_SetMain is called. 852 * 853 *----------------------------------------------------------------------- 854 */ 855 static int 856 ParseFindMain(ClientData gnp, ClientData dummy) 857 { 858 GNode *gn = (GNode *)gnp; 859 if ((gn->type & OP_NOTARGET) == 0) { 860 mainNode = gn; 861 Targ_SetMain(gn); 862 return (dummy ? 1 : 1); 863 } else { 864 return (dummy ? 0 : 0); 865 } 866 } 867 868 /*- 869 *----------------------------------------------------------------------- 870 * ParseAddDir -- 871 * Front-end for Dir_AddDir to make sure Lst_ForEach keeps going 872 * 873 * Results: 874 * === 0 875 * 876 * Side Effects: 877 * See Dir_AddDir. 878 * 879 *----------------------------------------------------------------------- 880 */ 881 static int 882 ParseAddDir(ClientData path, ClientData name) 883 { 884 (void)Dir_AddDir((Lst) path, (char *)name); 885 return(0); 886 } 887 888 /*- 889 *----------------------------------------------------------------------- 890 * ParseClearPath -- 891 * Front-end for Dir_ClearPath to make sure Lst_ForEach keeps going 892 * 893 * Results: 894 * === 0 895 * 896 * Side Effects: 897 * See Dir_ClearPath 898 * 899 *----------------------------------------------------------------------- 900 */ 901 static int 902 ParseClearPath(ClientData path, ClientData dummy) 903 { 904 Dir_ClearPath((Lst) path); 905 return(dummy ? 0 : 0); 906 } 907 908 /*- 909 *--------------------------------------------------------------------- 910 * ParseDoDependency -- 911 * Parse the dependency line in line. 912 * 913 * Input: 914 * line the line to parse 915 * 916 * Results: 917 * None 918 * 919 * Side Effects: 920 * The nodes of the sources are linked as children to the nodes of the 921 * targets. Some nodes may be created. 922 * 923 * We parse a dependency line by first extracting words from the line and 924 * finding nodes in the list of all targets with that name. This is done 925 * until a character is encountered which is an operator character. Currently 926 * these are only ! and :. At this point the operator is parsed and the 927 * pointer into the line advanced until the first source is encountered. 928 * The parsed operator is applied to each node in the 'targets' list, 929 * which is where the nodes found for the targets are kept, by means of 930 * the ParseDoOp function. 931 * The sources are read in much the same way as the targets were except 932 * that now they are expanded using the wildcarding scheme of the C-Shell 933 * and all instances of the resulting words in the list of all targets 934 * are found. Each of the resulting nodes is then linked to each of the 935 * targets as one of its children. 936 * Certain targets are handled specially. These are the ones detailed 937 * by the specType variable. 938 * The storing of transformation rules is also taken care of here. 939 * A target is recognized as a transformation rule by calling 940 * Suff_IsTransform. If it is a transformation rule, its node is gotten 941 * from the suffix module via Suff_AddTransform rather than the standard 942 * Targ_FindNode in the target module. 943 *--------------------------------------------------------------------- 944 */ 945 static void 946 ParseDoDependency(char *line) 947 { 948 char *cp; /* our current position */ 949 GNode *gn = NULL; /* a general purpose temporary node */ 950 int op; /* the operator on the line */ 951 char savec; /* a place to save a character */ 952 Lst paths; /* List of search paths to alter when parsing 953 * a list of .PATH targets */ 954 int tOp; /* operator from special target */ 955 Lst sources; /* list of archive source names after 956 * expansion */ 957 Lst curTargs; /* list of target names to be found and added 958 * to the targets list */ 959 Lst curSrcs; /* list of sources in order */ 960 char *lstart = line; 961 Boolean hasWait; /* is .WAIT present in srcs */ 962 963 tOp = 0; 964 965 specType = Not; 966 waiting = 0; 967 paths = (Lst)NULL; 968 969 curTargs = Lst_Init(FALSE); 970 curSrcs = Lst_Init(FALSE); 971 972 do { 973 for (cp = line; 974 *cp && (ParseIsEscaped(lstart, cp) || 975 (!isspace ((unsigned char)*cp) && 976 (*cp != '!') && (*cp != ':') && (*cp != LPAREN))); 977 cp++) 978 { 979 if (*cp == '$') { 980 /* 981 * Must be a dynamic source (would have been expanded 982 * otherwise), so call the Var module to parse the puppy 983 * so we can safely advance beyond it...There should be 984 * no errors in this, as they would have been discovered 985 * in the initial Var_Subst and we wouldn't be here. 986 */ 987 int length; 988 Boolean freeIt; 989 char *result; 990 991 result=Var_Parse(cp, VAR_CMD, TRUE, &length, &freeIt); 992 993 if (freeIt) { 994 free(result); 995 } 996 cp += length-1; 997 } 998 continue; 999 } 1000 if (!ParseIsEscaped(lstart, cp) && *cp == LPAREN) { 1001 /* 1002 * Archives must be handled specially to make sure the OP_ARCHV 1003 * flag is set in their 'type' field, for one thing, and because 1004 * things like "archive(file1.o file2.o file3.o)" are permissible. 1005 * Arch_ParseArchive will set 'line' to be the first non-blank 1006 * after the archive-spec. It creates/finds nodes for the members 1007 * and places them on the given list, returning SUCCESS if all 1008 * went well and FAILURE if there was an error in the 1009 * specification. On error, line should remain untouched. 1010 */ 1011 if (Arch_ParseArchive(&line, targets, VAR_CMD) != SUCCESS) { 1012 Parse_Error(PARSE_FATAL, 1013 "Error in archive specification: \"%s\"", line); 1014 return; 1015 } else { 1016 continue; 1017 } 1018 } 1019 savec = *cp; 1020 1021 if (!*cp) { 1022 /* 1023 * Ending a dependency line without an operator is a Bozo 1024 * no-no. As a heuristic, this is also often triggered by 1025 * undetected conflicts from cvs/rcs merges. 1026 */ 1027 if ((strncmp(line, "<<<<<<", 6) == 0) || 1028 (strncmp(line, "======", 6) == 0) || 1029 (strncmp(line, ">>>>>>", 6) == 0)) 1030 Parse_Error(PARSE_FATAL, 1031 "Makefile appears to contain unresolved cvs/rcs/??? merge conflicts"); 1032 else 1033 Parse_Error(PARSE_FATAL, "Need an operator"); 1034 return; 1035 } 1036 *cp = '\0'; 1037 /* 1038 * Have a word in line. See if it's a special target and set 1039 * specType to match it. 1040 */ 1041 if (*line == '.' && isupper ((unsigned char)line[1])) { 1042 /* 1043 * See if the target is a special target that must have it 1044 * or its sources handled specially. 1045 */ 1046 int keywd = ParseFindKeyword(line); 1047 if (keywd != -1) { 1048 if (specType == ExPath && parseKeywords[keywd].spec != ExPath) { 1049 Parse_Error(PARSE_FATAL, "Mismatched special targets"); 1050 return; 1051 } 1052 1053 specType = parseKeywords[keywd].spec; 1054 tOp = parseKeywords[keywd].op; 1055 1056 /* 1057 * Certain special targets have special semantics: 1058 * .PATH Have to set the dirSearchPath 1059 * variable too 1060 * .MAIN Its sources are only used if 1061 * nothing has been specified to 1062 * create. 1063 * .DEFAULT Need to create a node to hang 1064 * commands on, but we don't want 1065 * it in the graph, nor do we want 1066 * it to be the Main Target, so we 1067 * create it, set OP_NOTMAIN and 1068 * add it to the list, setting 1069 * DEFAULT to the new node for 1070 * later use. We claim the node is 1071 * A transformation rule to make 1072 * life easier later, when we'll 1073 * use Make_HandleUse to actually 1074 * apply the .DEFAULT commands. 1075 * .PHONY The list of targets 1076 * .NOPATH Don't search for file in the path 1077 * .BEGIN 1078 * .END 1079 * .INTERRUPT Are not to be considered the 1080 * main target. 1081 * .NOTPARALLEL Make only one target at a time. 1082 * .SINGLESHELL Create a shell for each command. 1083 * .ORDER Must set initial predecessor to NIL 1084 */ 1085 switch (specType) { 1086 case ExPath: 1087 if (paths == NULL) { 1088 paths = Lst_Init(FALSE); 1089 } 1090 (void)Lst_AtEnd(paths, (ClientData)dirSearchPath); 1091 break; 1092 case Main: 1093 if (!Lst_IsEmpty(create)) { 1094 specType = Not; 1095 } 1096 break; 1097 case Begin: 1098 case End: 1099 case Interrupt: 1100 gn = Targ_FindNode(line, TARG_CREATE); 1101 gn->type |= OP_NOTMAIN|OP_SPECIAL; 1102 (void)Lst_AtEnd(targets, (ClientData)gn); 1103 break; 1104 case Default: 1105 gn = Targ_NewGN(".DEFAULT"); 1106 gn->type |= (OP_NOTMAIN|OP_TRANSFORM); 1107 (void)Lst_AtEnd(targets, (ClientData)gn); 1108 DEFAULT = gn; 1109 break; 1110 case NotParallel: 1111 not_parallel = 1; 1112 break; 1113 case SingleShell: 1114 compatMake = TRUE; 1115 break; 1116 case Order: 1117 predecessor = NILGNODE; 1118 break; 1119 default: 1120 break; 1121 } 1122 } else if (strncmp(line, ".PATH", 5) == 0) { 1123 /* 1124 * .PATH<suffix> has to be handled specially. 1125 * Call on the suffix module to give us a path to 1126 * modify. 1127 */ 1128 Lst path; 1129 1130 specType = ExPath; 1131 path = Suff_GetPath(&line[5]); 1132 if (path == NILLST) { 1133 Parse_Error(PARSE_FATAL, 1134 "Suffix '%s' not defined (yet)", 1135 &line[5]); 1136 return; 1137 } else { 1138 if (paths == (Lst)NULL) { 1139 paths = Lst_Init(FALSE); 1140 } 1141 (void)Lst_AtEnd(paths, (ClientData)path); 1142 } 1143 } 1144 } 1145 1146 /* 1147 * Have word in line. Get or create its node and stick it at 1148 * the end of the targets list 1149 */ 1150 if ((specType == Not) && (*line != '\0')) { 1151 if (Dir_HasWildcards(line)) { 1152 /* 1153 * Targets are to be sought only in the current directory, 1154 * so create an empty path for the thing. Note we need to 1155 * use Dir_Destroy in the destruction of the path as the 1156 * Dir module could have added a directory to the path... 1157 */ 1158 Lst emptyPath = Lst_Init(FALSE); 1159 1160 Dir_Expand(line, emptyPath, curTargs); 1161 1162 Lst_Destroy(emptyPath, Dir_Destroy); 1163 } else { 1164 /* 1165 * No wildcards, but we want to avoid code duplication, 1166 * so create a list with the word on it. 1167 */ 1168 (void)Lst_AtEnd(curTargs, (ClientData)line); 1169 } 1170 1171 while(!Lst_IsEmpty(curTargs)) { 1172 char *targName = (char *)Lst_DeQueue(curTargs); 1173 1174 if (!Suff_IsTransform (targName)) { 1175 gn = Targ_FindNode(targName, TARG_CREATE); 1176 } else { 1177 gn = Suff_AddTransform(targName); 1178 } 1179 1180 (void)Lst_AtEnd(targets, (ClientData)gn); 1181 } 1182 } else if (specType == ExPath && *line != '.' && *line != '\0') { 1183 Parse_Error(PARSE_WARNING, "Extra target (%s) ignored", line); 1184 } 1185 1186 *cp = savec; 1187 /* 1188 * If it is a special type and not .PATH, it's the only target we 1189 * allow on this line... 1190 */ 1191 if (specType != Not && specType != ExPath) { 1192 Boolean warn = FALSE; 1193 1194 while (*cp && (ParseIsEscaped(lstart, cp) || 1195 ((*cp != '!') && (*cp != ':')))) { 1196 if (ParseIsEscaped(lstart, cp) || 1197 (*cp != ' ' && *cp != '\t')) { 1198 warn = TRUE; 1199 } 1200 cp++; 1201 } 1202 if (warn) { 1203 Parse_Error(PARSE_WARNING, "Extra target ignored"); 1204 } 1205 } else { 1206 while (*cp && isspace ((unsigned char)*cp)) { 1207 cp++; 1208 } 1209 } 1210 line = cp; 1211 } while (*line && (ParseIsEscaped(lstart, line) || 1212 ((*line != '!') && (*line != ':')))); 1213 1214 /* 1215 * Don't need the list of target names anymore... 1216 */ 1217 Lst_Destroy(curTargs, NOFREE); 1218 1219 if (!Lst_IsEmpty(targets)) { 1220 switch(specType) { 1221 default: 1222 Parse_Error(PARSE_WARNING, "Special and mundane targets don't mix. Mundane ones ignored"); 1223 break; 1224 case Default: 1225 case Begin: 1226 case End: 1227 case Interrupt: 1228 /* 1229 * These four create nodes on which to hang commands, so 1230 * targets shouldn't be empty... 1231 */ 1232 case Not: 1233 /* 1234 * Nothing special here -- targets can be empty if it wants. 1235 */ 1236 break; 1237 } 1238 } 1239 1240 /* 1241 * Have now parsed all the target names. Must parse the operator next. The 1242 * result is left in op . 1243 */ 1244 if (*cp == '!') { 1245 op = OP_FORCE; 1246 } else if (*cp == ':') { 1247 if (cp[1] == ':') { 1248 op = OP_DOUBLEDEP; 1249 cp++; 1250 } else { 1251 op = OP_DEPENDS; 1252 } 1253 } else { 1254 Parse_Error(PARSE_FATAL, "Missing dependency operator"); 1255 return; 1256 } 1257 1258 cp++; /* Advance beyond operator */ 1259 1260 Lst_ForEach(targets, ParseDoOp, (ClientData)&op); 1261 1262 /* 1263 * Get to the first source 1264 */ 1265 while (*cp && isspace ((unsigned char)*cp)) { 1266 cp++; 1267 } 1268 line = cp; 1269 1270 /* 1271 * Several special targets take different actions if present with no 1272 * sources: 1273 * a .SUFFIXES line with no sources clears out all old suffixes 1274 * a .PRECIOUS line makes all targets precious 1275 * a .IGNORE line ignores errors for all targets 1276 * a .SILENT line creates silence when making all targets 1277 * a .PATH removes all directories from the search path(s). 1278 */ 1279 if (!*line) { 1280 switch (specType) { 1281 case Suffixes: 1282 Suff_ClearSuffixes(); 1283 break; 1284 case Precious: 1285 allPrecious = TRUE; 1286 break; 1287 case Ignore: 1288 ignoreErrors = TRUE; 1289 break; 1290 case Silent: 1291 beSilent = TRUE; 1292 break; 1293 case ExPath: 1294 Lst_ForEach(paths, ParseClearPath, (ClientData)NULL); 1295 Dir_SetPATH(); 1296 break; 1297 #ifdef POSIX 1298 case Posix: 1299 Var_Set("%POSIX", "1003.2", VAR_GLOBAL, 0); 1300 break; 1301 #endif 1302 default: 1303 break; 1304 } 1305 } else if (specType == MFlags) { 1306 /* 1307 * Call on functions in main.c to deal with these arguments and 1308 * set the initial character to a null-character so the loop to 1309 * get sources won't get anything 1310 */ 1311 Main_ParseArgLine(line); 1312 *line = '\0'; 1313 } else if (specType == ExShell) { 1314 if (Job_ParseShell(line) != SUCCESS) { 1315 Parse_Error(PARSE_FATAL, "improper shell specification"); 1316 return; 1317 } 1318 *line = '\0'; 1319 } else if ((specType == NotParallel) || (specType == SingleShell)) { 1320 *line = '\0'; 1321 } 1322 1323 /* 1324 * NOW GO FOR THE SOURCES 1325 */ 1326 if ((specType == Suffixes) || (specType == ExPath) || 1327 (specType == Includes) || (specType == Libs) || 1328 (specType == Null) || (specType == ExObjdir)) 1329 { 1330 while (*line) { 1331 /* 1332 * If the target was one that doesn't take files as its sources 1333 * but takes something like suffixes, we take each 1334 * space-separated word on the line as a something and deal 1335 * with it accordingly. 1336 * 1337 * If the target was .SUFFIXES, we take each source as a 1338 * suffix and add it to the list of suffixes maintained by the 1339 * Suff module. 1340 * 1341 * If the target was a .PATH, we add the source as a directory 1342 * to search on the search path. 1343 * 1344 * If it was .INCLUDES, the source is taken to be the suffix of 1345 * files which will be #included and whose search path should 1346 * be present in the .INCLUDES variable. 1347 * 1348 * If it was .LIBS, the source is taken to be the suffix of 1349 * files which are considered libraries and whose search path 1350 * should be present in the .LIBS variable. 1351 * 1352 * If it was .NULL, the source is the suffix to use when a file 1353 * has no valid suffix. 1354 * 1355 * If it was .OBJDIR, the source is a new definition for .OBJDIR, 1356 * and will cause make to do a new chdir to that path. 1357 */ 1358 while (*cp && !isspace ((unsigned char)*cp)) { 1359 cp++; 1360 } 1361 savec = *cp; 1362 *cp = '\0'; 1363 switch (specType) { 1364 case Suffixes: 1365 Suff_AddSuffix(line, &mainNode); 1366 break; 1367 case ExPath: 1368 Lst_ForEach(paths, ParseAddDir, (ClientData)line); 1369 break; 1370 case Includes: 1371 Suff_AddInclude(line); 1372 break; 1373 case Libs: 1374 Suff_AddLib(line); 1375 break; 1376 case Null: 1377 Suff_SetNull(line); 1378 break; 1379 case ExObjdir: 1380 Main_SetObjdir(line); 1381 break; 1382 default: 1383 break; 1384 } 1385 *cp = savec; 1386 if (savec != '\0') { 1387 cp++; 1388 } 1389 while (*cp && isspace ((unsigned char)*cp)) { 1390 cp++; 1391 } 1392 line = cp; 1393 } 1394 if (paths) { 1395 Lst_Destroy(paths, NOFREE); 1396 } 1397 if (specType == ExPath) 1398 Dir_SetPATH(); 1399 } else { 1400 /* 1401 * We don't need ParseDoSpecialSrc unless .WAIT is present. 1402 */ 1403 hasWait = (strstr(line, ".WAIT") != NULL); 1404 1405 while (*line) { 1406 /* 1407 * The targets take real sources, so we must beware of archive 1408 * specifications (i.e. things with left parentheses in them) 1409 * and handle them accordingly. 1410 */ 1411 while (*cp && !isspace ((unsigned char)*cp)) { 1412 if ((*cp == LPAREN) && (cp > line) && (cp[-1] != '$')) { 1413 /* 1414 * Only stop for a left parenthesis if it isn't at the 1415 * start of a word (that'll be for variable changes 1416 * later) and isn't preceded by a dollar sign (a dynamic 1417 * source). 1418 */ 1419 break; 1420 } else { 1421 cp++; 1422 } 1423 } 1424 1425 if (*cp == LPAREN) { 1426 sources = Lst_Init(FALSE); 1427 if (Arch_ParseArchive(&line, sources, VAR_CMD) != SUCCESS) { 1428 Parse_Error(PARSE_FATAL, 1429 "Error in source archive spec \"%s\"", line); 1430 return; 1431 } 1432 1433 while (!Lst_IsEmpty (sources)) { 1434 gn = (GNode *)Lst_DeQueue(sources); 1435 ParseDoSrc(tOp, gn->name, curSrcs, hasWait); 1436 } 1437 Lst_Destroy(sources, NOFREE); 1438 cp = line; 1439 } else { 1440 if (*cp) { 1441 *cp = '\0'; 1442 cp += 1; 1443 } 1444 1445 ParseDoSrc(tOp, line, curSrcs, hasWait); 1446 } 1447 while (*cp && isspace ((unsigned char)*cp)) { 1448 cp++; 1449 } 1450 line = cp; 1451 } 1452 } 1453 1454 if (mainNode == NILGNODE) { 1455 /* 1456 * If we have yet to decide on a main target to make, in the 1457 * absence of any user input, we want the first target on 1458 * the first dependency line that is actually a real target 1459 * (i.e. isn't a .USE or .EXEC rule) to be made. 1460 */ 1461 Lst_ForEach(targets, ParseFindMain, (ClientData)0); 1462 } 1463 1464 /* 1465 * Finally, destroy the list of sources 1466 */ 1467 Lst_Destroy(curSrcs, NOFREE); 1468 } 1469 1470 /*- 1471 *--------------------------------------------------------------------- 1472 * Parse_IsVar -- 1473 * Return TRUE if the passed line is a variable assignment. A variable 1474 * assignment consists of a single word followed by optional whitespace 1475 * followed by either a += or an = operator. 1476 * This function is used both by the Parse_File function and main when 1477 * parsing the command-line arguments. 1478 * 1479 * Input: 1480 * line the line to check 1481 * 1482 * Results: 1483 * TRUE if it is. FALSE if it ain't 1484 * 1485 * Side Effects: 1486 * none 1487 *--------------------------------------------------------------------- 1488 */ 1489 Boolean 1490 Parse_IsVar(char *line) 1491 { 1492 Boolean wasSpace = FALSE; /* set TRUE if found a space */ 1493 Boolean haveName = FALSE; /* Set TRUE if have a variable name */ 1494 int level = 0; 1495 #define ISEQOPERATOR(c) \ 1496 (((c) == '+') || ((c) == ':') || ((c) == '?') || ((c) == '!')) 1497 1498 /* 1499 * Skip to variable name 1500 */ 1501 for (;(*line == ' ') || (*line == '\t'); line++) 1502 continue; 1503 1504 for (; *line != '=' || level != 0; line++) 1505 switch (*line) { 1506 case '\0': 1507 /* 1508 * end-of-line -- can't be a variable assignment. 1509 */ 1510 return FALSE; 1511 1512 case ' ': 1513 case '\t': 1514 /* 1515 * there can be as much white space as desired so long as there is 1516 * only one word before the operator 1517 */ 1518 wasSpace = TRUE; 1519 break; 1520 1521 case LPAREN: 1522 case '{': 1523 level++; 1524 break; 1525 1526 case '}': 1527 case RPAREN: 1528 level--; 1529 break; 1530 1531 default: 1532 if (wasSpace && haveName) { 1533 if (ISEQOPERATOR(*line)) { 1534 /* 1535 * We must have a finished word 1536 */ 1537 if (level != 0) 1538 return FALSE; 1539 1540 /* 1541 * When an = operator [+?!:] is found, the next 1542 * character must be an = or it ain't a valid 1543 * assignment. 1544 */ 1545 if (line[1] == '=') 1546 return haveName; 1547 #ifdef SUNSHCMD 1548 /* 1549 * This is a shell command 1550 */ 1551 if (strncmp(line, ":sh", 3) == 0) 1552 return haveName; 1553 #endif 1554 } 1555 /* 1556 * This is the start of another word, so not assignment. 1557 */ 1558 return FALSE; 1559 } 1560 else { 1561 haveName = TRUE; 1562 wasSpace = FALSE; 1563 } 1564 break; 1565 } 1566 1567 return haveName; 1568 } 1569 1570 /*- 1571 *--------------------------------------------------------------------- 1572 * Parse_DoVar -- 1573 * Take the variable assignment in the passed line and do it in the 1574 * global context. 1575 * 1576 * Note: There is a lexical ambiguity with assignment modifier characters 1577 * in variable names. This routine interprets the character before the = 1578 * as a modifier. Therefore, an assignment like 1579 * C++=/usr/bin/CC 1580 * is interpreted as "C+ +=" instead of "C++ =". 1581 * 1582 * Input: 1583 * line a line guaranteed to be a variable assignment. 1584 * This reduces error checks 1585 * ctxt Context in which to do the assignment 1586 * 1587 * Results: 1588 * none 1589 * 1590 * Side Effects: 1591 * the variable structure of the given variable name is altered in the 1592 * global context. 1593 *--------------------------------------------------------------------- 1594 */ 1595 void 1596 Parse_DoVar(char *line, GNode *ctxt) 1597 { 1598 char *cp; /* pointer into line */ 1599 enum { 1600 VAR_SUBST, VAR_APPEND, VAR_SHELL, VAR_NORMAL 1601 } type; /* Type of assignment */ 1602 char *opc; /* ptr to operator character to 1603 * null-terminate the variable name */ 1604 Boolean freeCp = FALSE; /* TRUE if cp needs to be freed, 1605 * i.e. if any variable expansion was 1606 * performed */ 1607 /* 1608 * Avoid clobbered variable warnings by forcing the compiler 1609 * to ``unregister'' variables 1610 */ 1611 #if __GNUC__ 1612 (void) &cp; 1613 (void) &line; 1614 #endif 1615 1616 /* 1617 * Skip to variable name 1618 */ 1619 while ((*line == ' ') || (*line == '\t')) { 1620 line++; 1621 } 1622 1623 /* 1624 * Skip to operator character, nulling out whitespace as we go 1625 */ 1626 for (cp = line + 1; *cp != '='; cp++) { 1627 if (isspace ((unsigned char)*cp)) { 1628 *cp = '\0'; 1629 } 1630 } 1631 opc = cp-1; /* operator is the previous character */ 1632 *cp++ = '\0'; /* nuke the = */ 1633 1634 /* 1635 * Check operator type 1636 */ 1637 switch (*opc) { 1638 case '+': 1639 type = VAR_APPEND; 1640 *opc = '\0'; 1641 break; 1642 1643 case '?': 1644 /* 1645 * If the variable already has a value, we don't do anything. 1646 */ 1647 *opc = '\0'; 1648 if (Var_Exists(line, ctxt)) { 1649 return; 1650 } else { 1651 type = VAR_NORMAL; 1652 } 1653 break; 1654 1655 case ':': 1656 type = VAR_SUBST; 1657 *opc = '\0'; 1658 break; 1659 1660 case '!': 1661 type = VAR_SHELL; 1662 *opc = '\0'; 1663 break; 1664 1665 default: 1666 #ifdef SUNSHCMD 1667 while (opc > line && *opc != ':') 1668 opc--; 1669 1670 if (strncmp(opc, ":sh", 3) == 0) { 1671 type = VAR_SHELL; 1672 *opc = '\0'; 1673 break; 1674 } 1675 #endif 1676 type = VAR_NORMAL; 1677 break; 1678 } 1679 1680 while (isspace ((unsigned char)*cp)) { 1681 cp++; 1682 } 1683 1684 if (type == VAR_APPEND) { 1685 Var_Append(line, cp, ctxt); 1686 } else if (type == VAR_SUBST) { 1687 /* 1688 * Allow variables in the old value to be undefined, but leave their 1689 * invocation alone -- this is done by forcing oldVars to be false. 1690 * XXX: This can cause recursive variables, but that's not hard to do, 1691 * and this allows someone to do something like 1692 * 1693 * CFLAGS = $(.INCLUDES) 1694 * CFLAGS := -I.. $(CFLAGS) 1695 * 1696 * And not get an error. 1697 */ 1698 Boolean oldOldVars = oldVars; 1699 1700 oldVars = FALSE; 1701 1702 /* 1703 * make sure that we set the variable the first time to nothing 1704 * so that it gets substituted! 1705 */ 1706 if (!Var_Exists(line, ctxt)) 1707 Var_Set(line, "", ctxt, 0); 1708 1709 cp = Var_Subst(NULL, cp, ctxt, FALSE); 1710 oldVars = oldOldVars; 1711 freeCp = TRUE; 1712 1713 Var_Set(line, cp, ctxt, 0); 1714 } else if (type == VAR_SHELL) { 1715 char *res; 1716 const char *err; 1717 1718 if (strchr(cp, '$') != NULL) { 1719 /* 1720 * There's a dollar sign in the command, so perform variable 1721 * expansion on the whole thing. The resulting string will need 1722 * freeing when we're done, so set freeCmd to TRUE. 1723 */ 1724 cp = Var_Subst(NULL, cp, VAR_CMD, TRUE); 1725 freeCp = TRUE; 1726 } 1727 1728 res = Cmd_Exec(cp, &err); 1729 Var_Set(line, res, ctxt, 0); 1730 free(res); 1731 1732 if (err) 1733 Parse_Error(PARSE_WARNING, err, cp); 1734 } else { 1735 /* 1736 * Normal assignment -- just do it. 1737 */ 1738 Var_Set(line, cp, ctxt, 0); 1739 } 1740 if (strcmp(line, MAKEOVERRIDES) == 0) 1741 Main_ExportMAKEFLAGS(FALSE); /* re-export MAKEFLAGS */ 1742 else if (strcmp(line, ".CURDIR") == 0) { 1743 /* 1744 * Somone is being (too?) clever... 1745 * Let's pretend they know what they are doing and 1746 * re-initialize the 'cur' Path. 1747 */ 1748 Dir_InitCur(cp); 1749 Dir_SetPATH(); 1750 } 1751 if (freeCp) 1752 free(cp); 1753 } 1754 1755 1756 /*- 1757 * ParseAddCmd -- 1758 * Lst_ForEach function to add a command line to all targets 1759 * 1760 * Input: 1761 * gnp the node to which the command is to be added 1762 * cmd the command to add 1763 * 1764 * Results: 1765 * Always 0 1766 * 1767 * Side Effects: 1768 * A new element is added to the commands list of the node. 1769 */ 1770 static int 1771 ParseAddCmd(ClientData gnp, ClientData cmd) 1772 { 1773 GNode *gn = (GNode *)gnp; 1774 /* if target already supplied, ignore commands */ 1775 if ((gn->type & OP_DOUBLEDEP) && !Lst_IsEmpty (gn->cohorts)) 1776 gn = (GNode *)Lst_Datum(Lst_Last(gn->cohorts)); 1777 if (!(gn->type & OP_HAS_COMMANDS)) { 1778 (void)Lst_AtEnd(gn->commands, cmd); 1779 ParseMark(gn); 1780 } else { 1781 #ifdef notyet 1782 /* XXX: We cannot do this until we fix the tree */ 1783 (void)Lst_AtEnd(gn->commands, cmd); 1784 Parse_Error(PARSE_WARNING, 1785 "overriding commands for target \"%s\"; " 1786 "previous commands defined at %s: %d ignored", 1787 gn->name, gn->fname, gn->lineno); 1788 #else 1789 Parse_Error(PARSE_WARNING, 1790 "duplicate script for target \"%s\" ignored", 1791 gn->name); 1792 ParseErrorInternal(gn->fname, gn->lineno, PARSE_WARNING, 1793 "using previous script for \"%s\" defined here", 1794 gn->name); 1795 #endif 1796 } 1797 return(0); 1798 } 1799 1800 /*- 1801 *----------------------------------------------------------------------- 1802 * ParseHasCommands -- 1803 * Callback procedure for Parse_File when destroying the list of 1804 * targets on the last dependency line. Marks a target as already 1805 * having commands if it does, to keep from having shell commands 1806 * on multiple dependency lines. 1807 * 1808 * Input: 1809 * gnp Node to examine 1810 * 1811 * Results: 1812 * None 1813 * 1814 * Side Effects: 1815 * OP_HAS_COMMANDS may be set for the target. 1816 * 1817 *----------------------------------------------------------------------- 1818 */ 1819 static void 1820 ParseHasCommands(ClientData gnp) 1821 { 1822 GNode *gn = (GNode *)gnp; 1823 if (!Lst_IsEmpty(gn->commands)) { 1824 gn->type |= OP_HAS_COMMANDS; 1825 } 1826 } 1827 1828 /*- 1829 *----------------------------------------------------------------------- 1830 * Parse_AddIncludeDir -- 1831 * Add a directory to the path searched for included makefiles 1832 * bracketed by double-quotes. Used by functions in main.c 1833 * 1834 * Input: 1835 * dir The name of the directory to add 1836 * 1837 * Results: 1838 * None. 1839 * 1840 * Side Effects: 1841 * The directory is appended to the list. 1842 * 1843 *----------------------------------------------------------------------- 1844 */ 1845 void 1846 Parse_AddIncludeDir(char *dir) 1847 { 1848 (void)Dir_AddDir(parseIncPath, dir); 1849 } 1850 1851 /*- 1852 *--------------------------------------------------------------------- 1853 * ParseDoInclude -- 1854 * Push to another file. 1855 * 1856 * The input is the line minus the `.'. A file spec is a string 1857 * enclosed in <> or "". The former is looked for only in sysIncPath. 1858 * The latter in . and the directories specified by -I command line 1859 * options 1860 * 1861 * Results: 1862 * None 1863 * 1864 * Side Effects: 1865 * A structure is added to the includes Lst and readProc, lineno, 1866 * fname and curFILE are altered for the new file 1867 *--------------------------------------------------------------------- 1868 */ 1869 static void 1870 ParseDoInclude(char *line) 1871 { 1872 char *fullname; /* full pathname of file */ 1873 IFile *oldFile; /* state associated with current file */ 1874 char endc; /* the character which ends the file spec */ 1875 char *cp; /* current position in file spec */ 1876 Boolean isSystem; /* TRUE if makefile is a system makefile */ 1877 int silent = (*line != 'i') ? 1 : 0; 1878 char *file = &line[7 + silent]; 1879 1880 /* 1881 * Skip to delimiter character so we know where to look 1882 */ 1883 while ((*file == ' ') || (*file == '\t')) { 1884 file++; 1885 } 1886 1887 if ((*file != '"') && (*file != '<')) { 1888 Parse_Error(PARSE_FATAL, 1889 ".include filename must be delimited by '\"' or '<'"); 1890 return; 1891 } 1892 1893 /* 1894 * Set the search path on which to find the include file based on the 1895 * characters which bracket its name. Angle-brackets imply it's 1896 * a system Makefile while double-quotes imply it's a user makefile 1897 */ 1898 if (*file == '<') { 1899 isSystem = TRUE; 1900 endc = '>'; 1901 } else { 1902 isSystem = FALSE; 1903 endc = '"'; 1904 } 1905 1906 /* 1907 * Skip to matching delimiter 1908 */ 1909 for (cp = ++file; *cp && *cp != endc; cp++) { 1910 continue; 1911 } 1912 1913 if (*cp != endc) { 1914 Parse_Error(PARSE_FATAL, 1915 "Unclosed %cinclude filename. '%c' expected", 1916 '.', endc); 1917 return; 1918 } 1919 *cp = '\0'; 1920 1921 /* 1922 * Substitute for any variables in the file name before trying to 1923 * find the thing. 1924 */ 1925 file = Var_Subst(NULL, file, VAR_CMD, FALSE); 1926 1927 /* 1928 * Now we know the file's name and its search path, we attempt to 1929 * find the durn thing. A return of NULL indicates the file don't 1930 * exist. 1931 */ 1932 fullname = NULL; 1933 1934 if (!isSystem) { 1935 /* 1936 * Include files contained in double-quotes are first searched for 1937 * relative to the including file's location. We don't want to 1938 * cd there, of course, so we just tack on the old file's 1939 * leading path components and call Dir_FindFile to see if 1940 * we can locate the beast. 1941 */ 1942 char *prefEnd, *Fname; 1943 1944 /* Make a temporary copy of this, to be safe. */ 1945 Fname = estrdup(curFile.fname); 1946 1947 prefEnd = strrchr(Fname, '/'); 1948 if (prefEnd != NULL) { 1949 char *newName; 1950 1951 *prefEnd = '\0'; 1952 if (file[0] == '/') 1953 newName = estrdup(file); 1954 else 1955 newName = str_concat(Fname, file, STR_ADDSLASH); 1956 fullname = Dir_FindFile(newName, parseIncPath); 1957 if (fullname == NULL) { 1958 fullname = Dir_FindFile(newName, dirSearchPath); 1959 } 1960 free(newName); 1961 *prefEnd = '/'; 1962 } else { 1963 fullname = NULL; 1964 } 1965 free(Fname); 1966 if (fullname == NULL) { 1967 /* 1968 * Makefile wasn't found in same directory as included makefile. 1969 * Search for it first on the -I search path, 1970 * then on the .PATH search path, if not found in a -I directory. 1971 * XXX: Suffix specific? 1972 */ 1973 fullname = Dir_FindFile(file, parseIncPath); 1974 if (fullname == NULL) { 1975 fullname = Dir_FindFile(file, dirSearchPath); 1976 } 1977 } 1978 } 1979 1980 /* Looking for a system file or file still not found */ 1981 if (fullname == NULL) { 1982 /* 1983 * Look for it on the system path 1984 */ 1985 fullname = Dir_FindFile(file, Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath); 1986 } 1987 1988 if (fullname == NULL) { 1989 *cp = endc; 1990 if (!silent) 1991 Parse_Error(PARSE_FATAL, "Could not find %s", file); 1992 return; 1993 } 1994 1995 free(file); 1996 1997 /* 1998 * Once we find the absolute path to the file, we get to save all the 1999 * state from the current file before we can start reading this 2000 * include file. The state is stored in an IFile structure which 2001 * is placed on a list with other IFile structures. The list makes 2002 * a very nice stack to track how we got here... 2003 */ 2004 oldFile = emalloc(sizeof(IFile)); 2005 2006 memcpy(oldFile, &curFile, sizeof(IFile)); 2007 2008 (void)Lst_AtFront(includes, (ClientData)oldFile); 2009 2010 /* 2011 * Once the previous state has been saved, we can get down to reading 2012 * the new file. We set up the name of the file to be the absolute 2013 * name of the include file so error messages refer to the right 2014 * place. Naturally enough, we start reading at line number 0. 2015 */ 2016 curFile.fname = fullname; 2017 curFile.lineno = 0; 2018 2019 ParseSetParseFile(curFile.fname); 2020 2021 curFile.F = fopen(fullname, "r"); 2022 curFile.P = NULL; 2023 2024 if (curFile.F == (FILE * ) NULL) { 2025 if (!silent) 2026 Parse_Error(PARSE_FATAL, "Cannot open %s", fullname); 2027 /* 2028 * Pop to previous file 2029 */ 2030 (void)ParseEOF(0); 2031 } 2032 } 2033 2034 2035 /*- 2036 *--------------------------------------------------------------------- 2037 * ParseSetParseFile -- 2038 * Set the .PARSEDIR and .PARSEFILE variables to the dirname and 2039 * basename of the given filename 2040 * 2041 * Results: 2042 * None 2043 * 2044 * Side Effects: 2045 * The .PARSEDIR and .PARSEFILE variables are overwritten by the 2046 * dirname and basename of the given filename. 2047 *--------------------------------------------------------------------- 2048 */ 2049 static void 2050 ParseSetParseFile(char *filename) 2051 { 2052 char *slash; 2053 2054 slash = strrchr(filename, '/'); 2055 if (slash == 0) { 2056 Var_Set(".PARSEDIR", ".", VAR_GLOBAL, 0); 2057 Var_Set(".PARSEFILE", filename, VAR_GLOBAL, 0); 2058 } else { 2059 *slash = '\0'; 2060 Var_Set(".PARSEDIR", filename, VAR_GLOBAL, 0); 2061 Var_Set(".PARSEFILE", slash+1, VAR_GLOBAL, 0); 2062 *slash = '/'; 2063 } 2064 } 2065 2066 2067 /*- 2068 *--------------------------------------------------------------------- 2069 * Parse_FromString -- 2070 * Start Parsing from the given string 2071 * 2072 * Results: 2073 * None 2074 * 2075 * Side Effects: 2076 * A structure is added to the includes Lst and readProc, lineno, 2077 * fname and curFILE are altered for the new file 2078 *--------------------------------------------------------------------- 2079 */ 2080 void 2081 Parse_FromString(char *str, int lineno) 2082 { 2083 IFile *oldFile; /* state associated with this file */ 2084 2085 if (DEBUG(FOR)) 2086 (void)fprintf(stderr, "%s\n---- at line %d\n", str, lineno); 2087 2088 oldFile = emalloc(sizeof(IFile)); 2089 memcpy(oldFile, &curFile, sizeof(IFile)); 2090 2091 (void)Lst_AtFront(includes, (ClientData)oldFile); 2092 2093 curFile.F = NULL; 2094 curFile.P = emalloc(sizeof(PTR)); 2095 curFile.P->str = curFile.P->ptr = str; 2096 curFile.lineno = lineno; 2097 curFile.fname = estrdup(curFile.fname); 2098 } 2099 2100 2101 #ifdef SYSVINCLUDE 2102 /*- 2103 *--------------------------------------------------------------------- 2104 * ParseTraditionalInclude -- 2105 * Push to another file. 2106 * 2107 * The input is the current line. The file name(s) are 2108 * following the "include". 2109 * 2110 * Results: 2111 * None 2112 * 2113 * Side Effects: 2114 * A structure is added to the includes Lst and readProc, lineno, 2115 * fname and curFILE are altered for the new file 2116 *--------------------------------------------------------------------- 2117 */ 2118 static void 2119 ParseTraditionalInclude(char *line) 2120 { 2121 char *fullname; /* full pathname of file */ 2122 IFile *oldFile; /* state associated with current file */ 2123 char *cp; /* current position in file spec */ 2124 char *prefEnd; 2125 int done = 0; 2126 int silent = (line[0] != 'i') ? 1 : 0; 2127 char *file = &line[silent + 7]; 2128 char *cfname; 2129 size_t clineno; 2130 2131 cfname = curFile.fname; 2132 clineno = curFile.lineno; 2133 2134 /* 2135 * Skip over whitespace 2136 */ 2137 while (isspace((unsigned char)*file)) 2138 file++; 2139 2140 if (*file == '\0') { 2141 Parse_Error(PARSE_FATAL, 2142 "Filename missing from \"include\""); 2143 return; 2144 } 2145 2146 for (; !done; file = cp + 1) { 2147 /* 2148 * Skip to end of line or next whitespace 2149 */ 2150 for (cp = file; *cp && !isspace((unsigned char) *cp); cp++) 2151 continue; 2152 2153 if (*cp) 2154 *cp = '\0'; 2155 else 2156 done = 1; 2157 2158 /* 2159 * Substitute for any variables in the file name before trying to 2160 * find the thing. 2161 */ 2162 file = Var_Subst(NULL, file, VAR_CMD, FALSE); 2163 2164 /* 2165 * Now we know the file's name, we attempt to find the durn thing. 2166 * A return of NULL indicates the file don't exist. 2167 * 2168 * Include files are first searched for relative to the including 2169 * file's location. We don't want to cd there, of course, so we 2170 * just tack on the old file's leading path components and call 2171 * Dir_FindFile to see if we can locate the beast. 2172 * XXX - this *does* search in the current directory, right? 2173 */ 2174 2175 prefEnd = strrchr(cfname, '/'); 2176 if (prefEnd != NULL) { 2177 char *newName; 2178 2179 *prefEnd = '\0'; 2180 newName = str_concat(cfname, file, STR_ADDSLASH); 2181 fullname = Dir_FindFile(newName, parseIncPath); 2182 if (fullname == NULL) { 2183 fullname = Dir_FindFile(newName, dirSearchPath); 2184 } 2185 free(newName); 2186 *prefEnd = '/'; 2187 } else { 2188 fullname = NULL; 2189 } 2190 2191 if (fullname == NULL) { 2192 /* 2193 * System makefile or makefile wasn't found in same directory as 2194 * included makefile. Search for it first on the -I search path, 2195 * then on the .PATH search path, if not found in a 2196 * -I directory. XXX: Suffix specific? 2197 */ 2198 fullname = Dir_FindFile(file, parseIncPath); 2199 if (fullname == NULL) { 2200 fullname = Dir_FindFile(file, dirSearchPath); 2201 } 2202 } 2203 2204 if (fullname == NULL) { 2205 /* 2206 * Still haven't found the makefile. Look for it on the system 2207 * path as a last resort. 2208 */ 2209 fullname = Dir_FindFile(file, 2210 Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath); 2211 } 2212 2213 if (fullname == NULL) { 2214 if (!silent) 2215 ParseErrorInternal(cfname, clineno, PARSE_FATAL, 2216 "Could not find %s", file); 2217 free(file); 2218 continue; 2219 } 2220 2221 free(file); 2222 2223 /* 2224 * Once we find the absolute path to the file, we get to save all 2225 * the state from the current file before we can start reading this 2226 * include file. The state is stored in an IFile structure which 2227 * is placed on a list with other IFile structures. The list makes 2228 * a very nice stack to track how we got here... 2229 */ 2230 oldFile = emalloc(sizeof(IFile)); 2231 memcpy(oldFile, &curFile, sizeof(IFile)); 2232 2233 (void)Lst_AtFront(includes, (ClientData)oldFile); 2234 2235 /* 2236 * Once the previous state has been saved, we can get down to 2237 * reading the new file. We set up the name of the file to be the 2238 * absolute name of the include file so error messages refer to the 2239 * right place. Naturally enough, we start reading at line number 0. 2240 */ 2241 curFile.fname = fullname; 2242 curFile.lineno = 0; 2243 2244 curFile.F = fopen(fullname, "r"); 2245 curFile.P = NULL; 2246 2247 if (curFile.F == NULL) { 2248 if (!silent) 2249 ParseErrorInternal(cfname, clineno, PARSE_FATAL, 2250 "Cannot open %s", fullname); 2251 /* 2252 * Pop to previous file 2253 */ 2254 (void)ParseEOF(1); 2255 } 2256 } 2257 } 2258 #endif 2259 2260 /*- 2261 *--------------------------------------------------------------------- 2262 * ParseEOF -- 2263 * Called when EOF is reached in the current file. If we were reading 2264 * an include file, the includes stack is popped and things set up 2265 * to go back to reading the previous file at the previous location. 2266 * 2267 * Results: 2268 * CONTINUE if there's more to do. DONE if not. 2269 * 2270 * Side Effects: 2271 * The old curFILE, is closed. The includes list is shortened. 2272 * lineno, curFILE, and fname are changed if CONTINUE is returned. 2273 *--------------------------------------------------------------------- 2274 */ 2275 static int 2276 ParseEOF(int opened) 2277 { 2278 IFile *ifile; /* the state on the top of the includes stack */ 2279 2280 if (Lst_IsEmpty(includes)) { 2281 Var_Delete(".PARSEDIR", VAR_GLOBAL); 2282 Var_Delete(".PARSEFILE", VAR_GLOBAL); 2283 return (DONE); 2284 } 2285 2286 ifile = (IFile *)Lst_DeQueue(includes); 2287 2288 /* XXX dispose of curFile info */ 2289 free( curFile.fname); 2290 if (opened && curFile.F) 2291 (void)fclose(curFile.F); 2292 if (curFile.P) { 2293 free(curFile.P->str); 2294 free(curFile.P); 2295 } 2296 2297 memcpy(&curFile, ifile, sizeof(IFile)); 2298 2299 free(ifile); 2300 2301 /* pop the PARSEDIR/PARSEFILE variables */ 2302 ParseSetParseFile(curFile.fname); 2303 return (CONTINUE); 2304 } 2305 2306 /*- 2307 *--------------------------------------------------------------------- 2308 * ParseReadc -- 2309 * Read a character from the current file 2310 * 2311 * Results: 2312 * The character that was read 2313 * 2314 * Side Effects: 2315 *--------------------------------------------------------------------- 2316 */ 2317 static inline int 2318 ParseReadc(void) 2319 { 2320 if (curFile.F) 2321 return fgetc(curFile.F); 2322 2323 if (curFile.P && *curFile.P->ptr) 2324 return *curFile.P->ptr++; 2325 return EOF; 2326 } 2327 2328 2329 /*- 2330 *--------------------------------------------------------------------- 2331 * ParseUnreadc -- 2332 * Put back a character to the current file 2333 * 2334 * Results: 2335 * None. 2336 * 2337 * Side Effects: 2338 *--------------------------------------------------------------------- 2339 */ 2340 static void 2341 ParseUnreadc(int c) 2342 { 2343 if (curFile.F) { 2344 ungetc(c, curFile.F); 2345 return; 2346 } 2347 if (curFile.P) { 2348 *--(curFile.P->ptr) = c; 2349 return; 2350 } 2351 } 2352 2353 2354 /* ParseSkipLine(): 2355 * Grab the next line 2356 * 2357 * Input: 2358 * skip Skip lines that don't start with . 2359 * keep_newline Keep newline character as is. 2360 * 2361 */ 2362 static char * 2363 ParseSkipLine(int skip, int keep_newline) 2364 { 2365 char *line; 2366 int c, lastc, lineLength = 0; 2367 Buffer buf; 2368 2369 buf = Buf_Init(MAKE_BSIZE); 2370 2371 do { 2372 Buf_Discard(buf, lineLength); 2373 lastc = '\0'; 2374 2375 while (((c = ParseReadc()) != '\n' || lastc == '\\') 2376 && c != EOF) { 2377 if (c == '\n') { 2378 if (keep_newline) 2379 Buf_AddByte(buf, (Byte)c); 2380 else 2381 Buf_ReplaceLastByte(buf, (Byte)' '); 2382 curFile.lineno++; 2383 2384 while ((c = ParseReadc()) == ' ' || c == '\t'); 2385 2386 if (c == EOF) 2387 break; 2388 } 2389 2390 Buf_AddByte(buf, (Byte)c); 2391 lastc = c; 2392 } 2393 2394 if (c == EOF) { 2395 Parse_Error(PARSE_FATAL, "Unclosed conditional/for loop"); 2396 Buf_Destroy(buf, TRUE); 2397 return(NULL); 2398 } 2399 2400 curFile.lineno++; 2401 Buf_AddByte(buf, (Byte)'\0'); 2402 line = (char *)Buf_GetAll(buf, &lineLength); 2403 } while (skip == 1 && line[0] != '.'); 2404 2405 Buf_Destroy(buf, FALSE); 2406 return line; 2407 } 2408 2409 2410 /*- 2411 *--------------------------------------------------------------------- 2412 * ParseReadLine -- 2413 * Read an entire line from the input file. Called only by Parse_File. 2414 * To facilitate escaped newlines and what have you, a character is 2415 * buffered in 'lastc', which is '\0' when no characters have been 2416 * read. When we break out of the loop, c holds the terminating 2417 * character and lastc holds a character that should be added to 2418 * the line (unless we don't read anything but a terminator). 2419 * 2420 * Results: 2421 * A line w/o its newline 2422 * 2423 * Side Effects: 2424 * Only those associated with reading a character 2425 *--------------------------------------------------------------------- 2426 */ 2427 static char * 2428 ParseReadLine(void) 2429 { 2430 Buffer buf; /* Buffer for current line */ 2431 int c; /* the current character */ 2432 int lastc; /* The most-recent character */ 2433 Boolean semiNL; /* treat semi-colons as newlines */ 2434 Boolean ignDepOp; /* TRUE if should ignore dependency operators 2435 * for the purposes of setting semiNL */ 2436 Boolean ignComment; /* TRUE if should ignore comments (in a 2437 * shell command */ 2438 char *line; /* Result */ 2439 char *ep; /* to strip trailing blanks */ 2440 int lineLength; /* Length of result */ 2441 int lineno; /* Saved line # */ 2442 2443 semiNL = FALSE; 2444 ignDepOp = FALSE; 2445 ignComment = FALSE; 2446 2447 /* 2448 * Handle special-characters at the beginning of the line. Either a 2449 * leading tab (shell command) or pound-sign (possible conditional) 2450 * forces us to ignore comments and dependency operators and treat 2451 * semi-colons as semi-colons (by leaving semiNL FALSE). This also 2452 * discards completely blank lines. 2453 */ 2454 for (;;) { 2455 c = ParseReadc(); 2456 2457 if (c == '\t') { 2458 ignComment = ignDepOp = TRUE; 2459 break; 2460 } else if (c == '\n') { 2461 curFile.lineno++; 2462 } else if (c == '#') { 2463 ParseUnreadc(c); 2464 break; 2465 } else { 2466 /* 2467 * Anything else breaks out without doing anything 2468 */ 2469 break; 2470 } 2471 } 2472 2473 if (c != EOF) { 2474 lastc = c; 2475 buf = Buf_Init(MAKE_BSIZE); 2476 2477 while (((c = ParseReadc()) != '\n' || (lastc == '\\')) && 2478 (c != EOF)) 2479 { 2480 test_char: 2481 switch(c) { 2482 case '\n': 2483 /* 2484 * Escaped newline: read characters until a non-space or an 2485 * unescaped newline and replace them all by a single space. 2486 * This is done by storing the space over the backslash and 2487 * dropping through with the next nonspace. If it is a 2488 * semi-colon and semiNL is TRUE, it will be recognized as a 2489 * newline in the code below this... 2490 */ 2491 curFile.lineno++; 2492 lastc = ' '; 2493 while ((c = ParseReadc()) == ' ' || c == '\t') { 2494 continue; 2495 } 2496 if (c == EOF || c == '\n') { 2497 goto line_read; 2498 } else { 2499 /* 2500 * Check for comments, semiNL's, etc. -- easier than 2501 * ParseUnreadc(c); continue; 2502 */ 2503 goto test_char; 2504 } 2505 /*NOTREACHED*/ 2506 break; 2507 2508 case ';': 2509 /* 2510 * Semi-colon: Need to see if it should be interpreted as a 2511 * newline 2512 */ 2513 if (semiNL) { 2514 /* 2515 * To make sure the command that may be following this 2516 * semi-colon begins with a tab, we push one back into the 2517 * input stream. This will overwrite the semi-colon in the 2518 * buffer. If there is no command following, this does no 2519 * harm, since the newline remains in the buffer and the 2520 * whole line is ignored. 2521 */ 2522 ParseUnreadc('\t'); 2523 goto line_read; 2524 } 2525 break; 2526 case '=': 2527 if (!semiNL) { 2528 /* 2529 * Haven't seen a dependency operator before this, so this 2530 * must be a variable assignment -- don't pay attention to 2531 * dependency operators after this. 2532 */ 2533 ignDepOp = TRUE; 2534 } else if (lastc == ':' || lastc == '!') { 2535 /* 2536 * Well, we've seen a dependency operator already, but it 2537 * was the previous character, so this is really just an 2538 * expanded variable assignment. Revert semi-colons to 2539 * being just semi-colons again and ignore any more 2540 * dependency operators. 2541 * 2542 * XXX: Note that a line like "foo : a:=b" will blow up, 2543 * but who'd write a line like that anyway? 2544 */ 2545 ignDepOp = TRUE; semiNL = FALSE; 2546 } 2547 break; 2548 case '#': 2549 if (!ignComment) { 2550 if ( 2551 #if 0 2552 compatMake && 2553 #endif 2554 (lastc != '\\')) { 2555 /* 2556 * If the character is a hash mark and it isn't escaped 2557 * (or we're being compatible), the thing is a comment. 2558 * Skip to the end of the line. 2559 */ 2560 do { 2561 c = ParseReadc(); 2562 /* 2563 * If we found a backslash not escaped 2564 * itself it means that the comment is 2565 * going to continue in the next line. 2566 */ 2567 if (c == '\\') 2568 ParseReadc(); 2569 } while ((c != '\n') && (c != EOF)); 2570 goto line_read; 2571 } else { 2572 /* 2573 * Don't add the backslash. Just let the # get copied 2574 * over. 2575 */ 2576 lastc = c; 2577 continue; 2578 } 2579 } 2580 break; 2581 case ':': 2582 case '!': 2583 if (!ignDepOp && (c == ':' || c == '!')) { 2584 /* 2585 * A semi-colon is recognized as a newline only on 2586 * dependency lines. Dependency lines are lines with a 2587 * colon or an exclamation point. Ergo... 2588 */ 2589 semiNL = TRUE; 2590 } 2591 break; 2592 } 2593 /* 2594 * Copy in the previous character and save this one in lastc. 2595 */ 2596 Buf_AddByte(buf, (Byte)lastc); 2597 lastc = c; 2598 2599 } 2600 line_read: 2601 curFile.lineno++; 2602 2603 if (lastc != '\0') { 2604 Buf_AddByte(buf, (Byte)lastc); 2605 } 2606 Buf_AddByte(buf, (Byte)'\0'); 2607 line = (char *)Buf_GetAll(buf, &lineLength); 2608 Buf_Destroy(buf, FALSE); 2609 2610 /* 2611 * Strip trailing blanks and tabs from the line. 2612 * Do not strip a blank or tab that is preceded by 2613 * a '\' 2614 */ 2615 ep = line; 2616 while (*ep) 2617 ++ep; 2618 while (ep > line + 1 && (ep[-1] == ' ' || ep[-1] == '\t')) { 2619 if (ep > line + 1 && ep[-2] == '\\') 2620 break; 2621 --ep; 2622 } 2623 *ep = 0; 2624 2625 if (line[0] == '.') { 2626 /* 2627 * The line might be a conditional. Ask the conditional module 2628 * about it and act accordingly 2629 */ 2630 switch (Cond_Eval(line)) { 2631 case COND_SKIP: 2632 /* 2633 * Skip to next conditional that evaluates to COND_PARSE. 2634 */ 2635 do { 2636 free(line); 2637 line = ParseSkipLine(1, 0); 2638 } while (line && Cond_Eval(line) != COND_PARSE); 2639 if (line == NULL) 2640 break; 2641 /*FALLTHRU*/ 2642 case COND_PARSE: 2643 free(line); 2644 line = ParseReadLine(); 2645 break; 2646 case COND_INVALID: 2647 lineno = curFile.lineno; 2648 if (For_Eval(line)) { 2649 int ok; 2650 free(line); 2651 do { 2652 /* 2653 * Skip after the matching end 2654 */ 2655 line = ParseSkipLine(0, 1); 2656 if (line == NULL) { 2657 Parse_Error(PARSE_FATAL, 2658 "Unexpected end of file in for loop.\n"); 2659 break; 2660 } 2661 ok = For_Eval(line); 2662 free(line); 2663 } 2664 while (ok); 2665 if (line != NULL) 2666 For_Run(lineno); 2667 line = ParseReadLine(); 2668 } 2669 break; 2670 } 2671 } 2672 return (line); 2673 2674 } else { 2675 /* 2676 * Hit end-of-file, so return a NULL line to indicate this. 2677 */ 2678 return(NULL); 2679 } 2680 } 2681 2682 /*- 2683 *----------------------------------------------------------------------- 2684 * ParseFinishLine -- 2685 * Handle the end of a dependency group. 2686 * 2687 * Results: 2688 * Nothing. 2689 * 2690 * Side Effects: 2691 * inLine set FALSE. 'targets' list destroyed. 2692 * 2693 *----------------------------------------------------------------------- 2694 */ 2695 static void 2696 ParseFinishLine(void) 2697 { 2698 if (inLine) { 2699 Lst_ForEach(targets, Suff_EndTransform, (ClientData)NULL); 2700 Lst_Destroy(targets, ParseHasCommands); 2701 targets = NULL; 2702 inLine = FALSE; 2703 } 2704 } 2705 2706 2707 /*- 2708 *--------------------------------------------------------------------- 2709 * Parse_File -- 2710 * Parse a file into its component parts, incorporating it into the 2711 * current dependency graph. This is the main function and controls 2712 * almost every other function in this module 2713 * 2714 * Input: 2715 * name the name of the file being read 2716 * stream Stream open to makefile to parse 2717 * 2718 * Results: 2719 * None 2720 * 2721 * Side Effects: 2722 * Loads. Nodes are added to the list of all targets, nodes and links 2723 * are added to the dependency graph. etc. etc. etc. 2724 *--------------------------------------------------------------------- 2725 */ 2726 void 2727 Parse_File(const char *name, FILE *stream) 2728 { 2729 char *cp, /* pointer into the line */ 2730 *line; /* the line we're working on */ 2731 2732 inLine = FALSE; 2733 fatals = 0; 2734 2735 curFile.fname = UNCONST(name); 2736 curFile.F = stream; 2737 curFile.lineno = 0; 2738 2739 ParseSetParseFile(curFile.fname); 2740 2741 do { 2742 while ((line = ParseReadLine()) != NULL) { 2743 if (*line == '.') { 2744 /* 2745 * Lines that begin with the special character are either 2746 * include or undef directives. 2747 */ 2748 for (cp = line + 1; isspace ((unsigned char)*cp); cp++) { 2749 continue; 2750 } 2751 if (strncmp(cp, "include", 7) == 0 || 2752 ((cp[0] == 's' || cp[0] == '-') && 2753 strncmp(&cp[1], "include", 7) == 0)) { 2754 ParseDoInclude(cp); 2755 goto nextLine; 2756 } else if (strncmp(cp, "undef", 5) == 0) { 2757 char *cp2; 2758 for (cp += 5; isspace((unsigned char) *cp); cp++) { 2759 continue; 2760 } 2761 2762 for (cp2 = cp; !isspace((unsigned char) *cp2) && 2763 (*cp2 != '\0'); cp2++) { 2764 continue; 2765 } 2766 2767 *cp2 = '\0'; 2768 2769 Var_Delete(cp, VAR_GLOBAL); 2770 goto nextLine; 2771 } 2772 } 2773 if (*line == '#') { 2774 /* If we're this far, the line must be a comment. */ 2775 goto nextLine; 2776 } 2777 2778 if (*line == '\t') { 2779 /* 2780 * If a line starts with a tab, it can only hope to be 2781 * a creation command. 2782 */ 2783 #ifndef POSIX 2784 shellCommand: 2785 #endif 2786 for (cp = line + 1; isspace ((unsigned char)*cp); cp++) { 2787 continue; 2788 } 2789 if (*cp) { 2790 if (inLine) { 2791 /* 2792 * So long as it's not a blank line and we're actually 2793 * in a dependency spec, add the command to the list of 2794 * commands of all targets in the dependency spec 2795 */ 2796 Lst_ForEach(targets, ParseAddCmd, cp); 2797 #ifdef CLEANUP 2798 Lst_AtEnd(targCmds, (ClientData) line); 2799 #endif 2800 continue; 2801 } else { 2802 Parse_Error(PARSE_FATAL, 2803 "Unassociated shell command \"%s\"", 2804 cp); 2805 } 2806 } 2807 #ifdef SYSVINCLUDE 2808 } else if (((strncmp(line, "include", 7) == 0 && 2809 isspace((unsigned char) line[7])) || 2810 ((line[0] == 's' || line[0] == '-') && 2811 strncmp(&line[1], "include", 7) == 0 && 2812 isspace((unsigned char) line[8]))) && 2813 strchr(line, ':') == NULL) { 2814 /* 2815 * It's an S3/S5-style "include". 2816 */ 2817 ParseTraditionalInclude(line); 2818 goto nextLine; 2819 #endif 2820 } else if (Parse_IsVar(line)) { 2821 ParseFinishLine(); 2822 Parse_DoVar(line, VAR_GLOBAL); 2823 } else { 2824 /* 2825 * We now know it's a dependency line so it needs to have all 2826 * variables expanded before being parsed. Tell the variable 2827 * module to complain if some variable is undefined... 2828 * To make life easier on novices, if the line is indented we 2829 * first make sure the line has a dependency operator in it. 2830 * If it doesn't have an operator and we're in a dependency 2831 * line's script, we assume it's actually a shell command 2832 * and add it to the current list of targets. 2833 */ 2834 #ifndef POSIX 2835 Boolean nonSpace = FALSE; 2836 #endif 2837 2838 cp = line; 2839 if (isspace((unsigned char) line[0])) { 2840 while ((*cp != '\0') && isspace((unsigned char) *cp)) { 2841 cp++; 2842 } 2843 if (*cp == '\0') { 2844 goto nextLine; 2845 } 2846 #ifndef POSIX 2847 while (*cp && (ParseIsEscaped(line, cp) || 2848 (*cp != ':') && (*cp != '!'))) { 2849 nonSpace = TRUE; 2850 cp++; 2851 } 2852 #endif 2853 } 2854 2855 #ifndef POSIX 2856 if (*cp == '\0') { 2857 if (inLine) { 2858 Parse_Error(PARSE_WARNING, 2859 "Shell command needs a leading tab"); 2860 goto shellCommand; 2861 } else if (nonSpace) { 2862 Parse_Error(PARSE_FATAL, "Missing operator"); 2863 } 2864 } else { 2865 #endif 2866 ParseFinishLine(); 2867 2868 cp = Var_Subst(NULL, line, VAR_CMD, TRUE); 2869 free(line); 2870 line = cp; 2871 2872 /* 2873 * Need a non-circular list for the target nodes 2874 */ 2875 if (targets) 2876 Lst_Destroy(targets, NOFREE); 2877 2878 targets = Lst_Init(FALSE); 2879 inLine = TRUE; 2880 2881 ParseDoDependency(line); 2882 #ifndef POSIX 2883 } 2884 #endif 2885 } 2886 2887 nextLine: 2888 2889 free(line); 2890 } 2891 /* 2892 * Reached EOF, but it may be just EOF of an include file... 2893 */ 2894 } while (ParseEOF(1) == CONTINUE); 2895 2896 /* 2897 * Make sure conditionals are clean 2898 */ 2899 Cond_End(); 2900 2901 if (fatals) { 2902 (void)fprintf(stderr, 2903 "%s: Fatal errors encountered -- cannot continue\n", 2904 progname); 2905 PrintOnError(NULL); 2906 exit(1); 2907 } 2908 } 2909 2910 /*- 2911 *--------------------------------------------------------------------- 2912 * Parse_Init -- 2913 * initialize the parsing module 2914 * 2915 * Results: 2916 * none 2917 * 2918 * Side Effects: 2919 * the parseIncPath list is initialized... 2920 *--------------------------------------------------------------------- 2921 */ 2922 void 2923 Parse_Init(void) 2924 { 2925 mainNode = NILGNODE; 2926 parseIncPath = Lst_Init(FALSE); 2927 sysIncPath = Lst_Init(FALSE); 2928 defIncPath = Lst_Init(FALSE); 2929 includes = Lst_Init(FALSE); 2930 #ifdef CLEANUP 2931 targCmds = Lst_Init(FALSE); 2932 #endif 2933 } 2934 2935 void 2936 Parse_End(void) 2937 { 2938 #ifdef CLEANUP 2939 Lst_Destroy(targCmds, (FreeProc *)free); 2940 if (targets) 2941 Lst_Destroy(targets, NOFREE); 2942 Lst_Destroy(defIncPath, Dir_Destroy); 2943 Lst_Destroy(sysIncPath, Dir_Destroy); 2944 Lst_Destroy(parseIncPath, Dir_Destroy); 2945 Lst_Destroy(includes, NOFREE); /* Should be empty now */ 2946 #endif 2947 } 2948 2949 2950 /*- 2951 *----------------------------------------------------------------------- 2952 * Parse_MainName -- 2953 * Return a Lst of the main target to create for main()'s sake. If 2954 * no such target exists, we Punt with an obnoxious error message. 2955 * 2956 * Results: 2957 * A Lst of the single node to create. 2958 * 2959 * Side Effects: 2960 * None. 2961 * 2962 *----------------------------------------------------------------------- 2963 */ 2964 Lst 2965 Parse_MainName(void) 2966 { 2967 Lst mainList; /* result list */ 2968 2969 mainList = Lst_Init(FALSE); 2970 2971 if (mainNode == NILGNODE) { 2972 Punt("no target to make."); 2973 /*NOTREACHED*/ 2974 } else if (mainNode->type & OP_DOUBLEDEP) { 2975 (void)Lst_AtEnd(mainList, (ClientData)mainNode); 2976 Lst_Concat(mainList, mainNode->cohorts, LST_CONCNEW); 2977 } 2978 else 2979 (void)Lst_AtEnd(mainList, (ClientData)mainNode); 2980 Var_Append(".TARGETS", mainNode->name, VAR_GLOBAL); 2981 return (mainList); 2982 } 2983 2984 /*- 2985 *----------------------------------------------------------------------- 2986 * ParseMark -- 2987 * Add the filename and lineno to the GNode so that we remember 2988 * where it was first defined. 2989 * 2990 * Side Effects: 2991 * None. 2992 * 2993 *----------------------------------------------------------------------- 2994 */ 2995 static void 2996 ParseMark(GNode *gn) 2997 { 2998 gn->fname = strdup(curFile.fname); 2999 gn->lineno = curFile.lineno; 3000 } 3001
Indexes created Wed Sep 24 05:09:52 GMT 2025