1 /* $NetBSD: parse.c,v 1.204 2014/09/18 08:06:13 dholland Exp $ */
4 * Copyright (c) 1988, 1989, 1990, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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
36 * Copyright (c) 1989 by Berkeley Softworks
37 * All rights reserved.
39 * This code is derived from software contributed to Berkeley by
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
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.
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
72 static char rcsid[] = "$NetBSD: parse.c,v 1.204 2014/09/18 08:06:13 dholland Exp $";
74 #include <sys/cdefs.h>
77 static char sccsid[] = "@(#)parse.c 8.3 (Berkeley) 3/19/94";
79 __RCSID("$NetBSD: parse.c,v 1.204 2014/09/18 08:06:13 dholland Exp $");
86 * Functions to parse a makefile.
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
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.
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.
103 * Parse_Init Initialization function which must be
104 * called before anything else in this module
107 * Parse_End Cleanup the module
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.
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...
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.
126 #include <sys/types.h>
127 #include <sys/stat.h>
140 #include "pathnames.h"
143 #include <sys/mman.h>
146 #define MAP_COPY MAP_PRIVATE
153 ////////////////////////////////////////////////////////////
154 // types and constants
157 * Structure for a file being read ("included file")
159 typedef struct IFile {
160 char *fname; /* name of file */
161 int lineno; /* current line number in file */
162 int first_lineno; /* line number of start of text */
163 int cond_depth; /* 'if' nesting when file opened */
164 char *P_str; /* point to base of string buffer */
165 char *P_ptr; /* point to next char of string buffer */
166 char *P_end; /* point to the end of string buffer */
167 char *(*nextbuf)(void *, size_t *); /* Function to get more data */
168 void *nextbuf_arg; /* Opaque arg for nextbuf() */
169 struct loadedfile *lf; /* loadedfile object, if any */
174 * These values are returned by ParseEOF to tell Parse_File whether to
175 * CONTINUE parsing, i.e. it had only reached the end of an include file,
182 * Tokens for target attributes
186 Default, /* .DEFAULT */
188 dotError, /* .ERROR */
189 Ignore, /* .IGNORE */
190 Includes, /* .INCLUDES */
191 Interrupt, /* .INTERRUPT */
194 MFlags, /* .MFLAGS or .MAKEFLAGS */
195 Main, /* .MAIN and we don't have anything user-specified to
197 NoExport, /* .NOEXPORT */
198 NoMeta, /* .NOMETA */
199 NoMetaCmp, /* .NOMETA_CMP */
200 NoPath, /* .NOPATH */
201 Not, /* Not special */
202 NotParallel, /* .NOTPARALLEL */
204 ExObjdir, /* .OBJDIR */
206 Parallel, /* .PARALLEL */
212 Precious, /* .PRECIOUS */
213 ExShell, /* .SHELL */
214 Silent, /* .SILENT */
215 SingleShell, /* .SINGLESHELL */
217 Suffixes, /* .SUFFIXES */
219 Attribute /* Generic attribute */
229 ////////////////////////////////////////////////////////////
233 * The main target to create. This is the first target on the first
234 * dependency line in the first makefile.
236 static GNode *mainNode;
238 ////////////////////////////////////////////////////////////
241 /* targets we're working on */
245 /* command lines for targets */
250 * specType contains the SPECial TYPE of the current target. It is
251 * Not if the target is unspecial. If it *is* special, however, the children
252 * are linked as children of the parent but not vice versa. This variable is
253 * set in ParseDoDependency
255 static ParseSpecial specType;
258 * Predecessor node for handling .ORDER. Initialized to NULL when .ORDER
259 * seen, then set to each successive source on the line.
261 static GNode *predecessor;
263 ////////////////////////////////////////////////////////////
266 /* true if currently in a dependency line or its commands */
267 static Boolean inLine;
269 /* number of fatal errors */
270 static int fatals = 0;
273 * Variables for doing includes
276 /* current file being read */
277 static IFile *curFile;
279 /* stack of IFiles generated by .includes */
282 /* include paths (lists of directories) */
283 Lst parseIncPath; /* dirs for "..." includes */
284 Lst sysIncPath; /* dirs for <...> includes */
285 Lst defIncPath; /* default for sysIncPath */
287 ////////////////////////////////////////////////////////////
291 * The parseKeywords table is searched using binary search when deciding
292 * if a target or source is special. The 'spec' field is the ParseSpecial
293 * type of the keyword ("Not" if the keyword isn't special as a target) while
294 * the 'op' field is the operator to apply to the list of targets if the
295 * keyword is used as a source ("0" if the keyword isn't special as a source)
297 static const struct {
298 const char *name; /* Name of keyword */
299 ParseSpecial spec; /* Type when used as a target */
300 int op; /* Operator when used as a source */
301 } parseKeywords[] = {
302 { ".BEGIN", Begin, 0 },
303 { ".DEFAULT", Default, 0 },
305 { ".ERROR", dotError, 0 },
306 { ".EXEC", Attribute, OP_EXEC },
307 { ".IGNORE", Ignore, OP_IGNORE },
308 { ".INCLUDES", Includes, 0 },
309 { ".INTERRUPT", Interrupt, 0 },
310 { ".INVISIBLE", Attribute, OP_INVISIBLE },
311 { ".JOIN", Attribute, OP_JOIN },
312 { ".LIBS", Libs, 0 },
313 { ".MADE", Attribute, OP_MADE },
314 { ".MAIN", Main, 0 },
315 { ".MAKE", Attribute, OP_MAKE },
316 { ".MAKEFLAGS", MFlags, 0 },
317 { ".META", Meta, OP_META },
318 { ".MFLAGS", MFlags, 0 },
319 { ".NOMETA", NoMeta, OP_NOMETA },
320 { ".NOMETA_CMP", NoMetaCmp, OP_NOMETA_CMP },
321 { ".NOPATH", NoPath, OP_NOPATH },
322 { ".NOTMAIN", Attribute, OP_NOTMAIN },
323 { ".NOTPARALLEL", NotParallel, 0 },
324 { ".NO_PARALLEL", NotParallel, 0 },
325 { ".NULL", Null, 0 },
326 { ".OBJDIR", ExObjdir, 0 },
327 { ".OPTIONAL", Attribute, OP_OPTIONAL },
328 { ".ORDER", Order, 0 },
329 { ".PARALLEL", Parallel, 0 },
330 { ".PATH", ExPath, 0 },
331 { ".PHONY", Phony, OP_PHONY },
333 { ".POSIX", Posix, 0 },
335 { ".PRECIOUS", Precious, OP_PRECIOUS },
336 { ".RECURSIVE", Attribute, OP_MAKE },
337 { ".SHELL", ExShell, 0 },
338 { ".SILENT", Silent, OP_SILENT },
339 { ".SINGLESHELL", SingleShell, 0 },
340 { ".STALE", Stale, 0 },
341 { ".SUFFIXES", Suffixes, 0 },
342 { ".USE", Attribute, OP_USE },
343 { ".USEBEFORE", Attribute, OP_USEBEFORE },
344 { ".WAIT", Wait, 0 },
347 ////////////////////////////////////////////////////////////
350 static int ParseIsEscaped(const char *, const char *);
351 static void ParseErrorInternal(const char *, size_t, int, const char *, ...)
352 MAKE_ATTR_PRINTFLIKE(4,5);
353 static void ParseVErrorInternal(FILE *, const char *, size_t, int, const char *, va_list)
354 MAKE_ATTR_PRINTFLIKE(5, 0);
355 static int ParseFindKeyword(const char *);
356 static int ParseLinkSrc(void *, void *);
357 static int ParseDoOp(void *, void *);
358 static void ParseDoSrc(int, const char *);
359 static int ParseFindMain(void *, void *);
360 static int ParseAddDir(void *, void *);
361 static int ParseClearPath(void *, void *);
362 static void ParseDoDependency(char *);
363 static int ParseAddCmd(void *, void *);
364 static void ParseHasCommands(void *);
365 static void ParseDoInclude(char *);
366 static void ParseSetParseFile(const char *);
367 static void ParseSetIncludedFile(void);
369 static void ParseTraditionalInclude(char *);
372 static void ParseGmakeExport(char *);
374 static int ParseEOF(void);
375 static char *ParseReadLine(void);
376 static void ParseFinishLine(void);
377 static void ParseMark(GNode *);
379 ////////////////////////////////////////////////////////////
383 const char *path; /* name, for error reports */
384 char *buf; /* contents buffer */
385 size_t len; /* length of contents */
386 size_t maplen; /* length of mmap area, or 0 */
387 Boolean used; /* XXX: have we used the data yet */
391 * Constructor/destructor for loadedfile
393 static struct loadedfile *
394 loadedfile_create(const char *path)
396 struct loadedfile *lf;
398 lf = bmake_malloc(sizeof(*lf));
399 lf->path = (path == NULL ? "(stdin)" : path);
408 loadedfile_destroy(struct loadedfile *lf)
410 if (lf->buf != NULL) {
411 if (lf->maplen > 0) {
413 munmap(lf->buf, lf->maplen);
423 * nextbuf() operation for loadedfile, as needed by the weird and twisted
424 * logic below. Once that's cleaned up, we can get rid of lf->used...
427 loadedfile_nextbuf(void *x, size_t *len)
429 struct loadedfile *lf = x;
440 * Try to get the size of a file.
443 load_getsize(int fd, size_t *ret)
447 if (fstat(fd, &st) < 0) {
451 if (!S_ISREG(st.st_mode)) {
456 * st_size is an off_t, which is 64 bits signed; *ret is
457 * size_t, which might be 32 bits unsigned or 64 bits
458 * unsigned. Rather than being elaborate, just punt on
459 * files that are more than 2^31 bytes. We should never
460 * see a makefile that size in practice...
462 * While we're at it reject negative sizes too, just in case.
464 if (st.st_size < 0 || st.st_size > 0x7fffffff) {
468 *ret = (size_t) st.st_size;
475 * Until the path search logic can be moved under here instead of
476 * being in the caller in another source file, we need to have the fd
477 * passed in already open. Bleh.
479 * If the path is NULL use stdin and (to insure against fd leaks)
480 * assert that the caller passed in -1.
482 static struct loadedfile *
483 loadfile(const char *path, int fd)
485 struct loadedfile *lf;
492 lf = loadedfile_create(path);
499 fd = open(path, O_RDONLY);
502 Error("%s: %s", path, strerror(errno));
509 if (load_getsize(fd, &lf->len) == SUCCESS) {
510 /* found a size, try mmap */
511 pagesize = sysconf(_SC_PAGESIZE);
515 /* round size up to a page */
516 lf->maplen = pagesize * ((lf->len + pagesize - 1)/pagesize);
519 * XXX hack for dealing with empty files; remove when
520 * we're no longer limited by interfacing to the old
521 * logic elsewhere in this file.
523 if (lf->maplen == 0) {
524 lf->maplen = pagesize;
528 * FUTURE: remove PROT_WRITE when the parser no longer
529 * needs to scribble on the input.
531 lf->buf = mmap(NULL, lf->maplen, PROT_READ|PROT_WRITE,
532 MAP_FILE|MAP_COPY, fd, 0);
533 if (lf->buf != MAP_FAILED) {
535 if (lf->len == lf->maplen && lf->buf[lf->len - 1] != '\n') {
536 char *b = malloc(lf->len + 1);
538 memcpy(b, lf->buf, lf->len++);
539 munmap(lf->buf, lf->maplen);
547 /* cannot mmap; load the traditional way */
551 lf->buf = bmake_malloc(lf->len);
555 assert(bufpos <= lf->len);
556 if (bufpos == lf->len) {
558 lf->buf = bmake_realloc(lf->buf, lf->len);
560 result = read(fd, lf->buf + bufpos, lf->len - bufpos);
562 Error("%s: read error: %s", path, strerror(errno));
570 assert(bufpos <= lf->len);
573 /* truncate malloc region to actual length (maybe not useful) */
575 lf->buf = bmake_realloc(lf->buf, lf->len);
587 ////////////////////////////////////////////////////////////
591 *----------------------------------------------------------------------
593 * Check if the current character is escaped on the current line
596 * 0 if the character is not backslash escaped, 1 otherwise
600 *----------------------------------------------------------------------
603 ParseIsEscaped(const char *line, const char *c)
616 *----------------------------------------------------------------------
617 * ParseFindKeyword --
618 * Look in the table of keywords for one matching the given string.
624 * The index of the keyword, or -1 if it isn't there.
628 *----------------------------------------------------------------------
631 ParseFindKeyword(const char *str)
637 end = (sizeof(parseKeywords)/sizeof(parseKeywords[0])) - 1;
640 cur = start + ((end - start) / 2);
641 diff = strcmp(str, parseKeywords[cur].name);
645 } else if (diff < 0) {
650 } while (start <= end);
655 * ParseVErrorInternal --
656 * Error message abort function for parsing. Prints out the context
657 * of the error (line number and file) as well as the message with
658 * two optional arguments.
664 * "fatals" is incremented if the level is PARSE_FATAL.
668 ParseVErrorInternal(FILE *f, const char *cfname, size_t clineno, int type,
669 const char *fmt, va_list ap)
671 static Boolean fatal_warning_error_printed = FALSE;
673 (void)fprintf(f, "%s: ", progname);
675 if (cfname != NULL) {
676 (void)fprintf(f, "\"");
677 if (*cfname != '/' && strcmp(cfname, "(stdin)") != 0) {
682 * Nothing is more annoying than not knowing
683 * which Makefile is the culprit.
685 dir = Var_Value(".PARSEDIR", VAR_GLOBAL, &cp);
686 if (dir == NULL || *dir == '\0' ||
687 (*dir == '.' && dir[1] == '\0'))
688 dir = Var_Value(".CURDIR", VAR_GLOBAL, &cp);
692 (void)fprintf(f, "%s/%s", dir, cfname);
694 (void)fprintf(f, "%s", cfname);
696 (void)fprintf(f, "\" line %d: ", (int)clineno);
698 if (type == PARSE_WARNING)
699 (void)fprintf(f, "warning: ");
700 (void)vfprintf(f, fmt, ap);
701 (void)fprintf(f, "\n");
703 if (type == PARSE_FATAL || parseWarnFatal)
705 if (parseWarnFatal && !fatal_warning_error_printed) {
706 Error("parsing warnings being treated as errors");
707 fatal_warning_error_printed = TRUE;
712 * ParseErrorInternal --
723 ParseErrorInternal(const char *cfname, size_t clineno, int type,
724 const char *fmt, ...)
729 (void)fflush(stdout);
730 ParseVErrorInternal(stderr, cfname, clineno, type, fmt, ap);
733 if (debug_file != stderr && debug_file != stdout) {
735 ParseVErrorInternal(debug_file, cfname, clineno, type, fmt, ap);
742 * External interface to ParseErrorInternal; uses the default filename
753 Parse_Error(int type, const char *fmt, ...)
759 if (curFile == NULL) {
763 fname = curFile->fname;
764 lineno = curFile->lineno;
768 (void)fflush(stdout);
769 ParseVErrorInternal(stderr, fname, lineno, type, fmt, ap);
772 if (debug_file != stderr && debug_file != stdout) {
774 ParseVErrorInternal(debug_file, fname, lineno, type, fmt, ap);
782 * Parse a .info .warning or .error directive
784 * The input is the line minus the ".". We substitute
785 * variables, print the message and exit(1) (for .error) or just print
786 * a warning if the directive is malformed.
789 ParseMessage(char *line)
798 mtype = PARSE_WARNING;
804 Parse_Error(PARSE_WARNING, "invalid syntax: \".%s\"", line);
808 while (isalpha((u_char)*line))
810 if (!isspace((u_char)*line))
811 return FALSE; /* not for us */
812 while (isspace((u_char)*line))
815 line = Var_Subst(NULL, line, VAR_CMD, 0);
816 Parse_Error(mtype, "%s", line);
819 if (mtype == PARSE_FATAL) {
820 /* Terminate immediately. */
827 *---------------------------------------------------------------------
829 * Link the parent node to its new child. Used in a Lst_ForEach by
830 * ParseDoDependency. If the specType isn't 'Not', the parent
831 * isn't linked as a parent of the child.
834 * pgnp The parent node
835 * cgpn The child node
841 * New elements are added to the parents list of cgn and the
842 * children list of cgn. the unmade field of pgn is updated
843 * to reflect the additional child.
844 *---------------------------------------------------------------------
847 ParseLinkSrc(void *pgnp, void *cgnp)
849 GNode *pgn = (GNode *)pgnp;
850 GNode *cgn = (GNode *)cgnp;
852 if ((pgn->type & OP_DOUBLEDEP) && !Lst_IsEmpty (pgn->cohorts))
853 pgn = (GNode *)Lst_Datum(Lst_Last(pgn->cohorts));
854 (void)Lst_AtEnd(pgn->children, cgn);
856 (void)Lst_AtEnd(cgn->parents, pgn);
859 fprintf(debug_file, "# %s: added child %s - %s\n", __func__,
860 pgn->name, cgn->name);
861 Targ_PrintNode(pgn, 0);
862 Targ_PrintNode(cgn, 0);
868 *---------------------------------------------------------------------
870 * Apply the parsed operator to the given target node. Used in a
871 * Lst_ForEach call by ParseDoDependency once all targets have
872 * been found and their operator parsed. If the previous and new
873 * operators are incompatible, a major error is taken.
876 * gnp The node to which the operator is to be applied
877 * opp The operator to apply
883 * The type field of the node is altered to reflect any new bits in
885 *---------------------------------------------------------------------
888 ParseDoOp(void *gnp, void *opp)
890 GNode *gn = (GNode *)gnp;
891 int op = *(int *)opp;
893 * If the dependency mask of the operator and the node don't match and
894 * the node has actually had an operator applied to it before, and
895 * the operator actually has some dependency information in it, complain.
897 if (((op & OP_OPMASK) != (gn->type & OP_OPMASK)) &&
898 !OP_NOP(gn->type) && !OP_NOP(op))
900 Parse_Error(PARSE_FATAL, "Inconsistent operator for %s", gn->name);
904 if ((op == OP_DOUBLEDEP) && ((gn->type & OP_OPMASK) == OP_DOUBLEDEP)) {
906 * If the node was the object of a :: operator, we need to create a
907 * new instance of it for the children and commands on this dependency
908 * line. The new instance is placed on the 'cohorts' list of the
909 * initial one (note the initial one is not on its own cohorts list)
910 * and the new instance is linked to all parents of the initial
916 * Propagate copied bits to the initial node. They'll be propagated
917 * back to the rest of the cohorts later.
919 gn->type |= op & ~OP_OPMASK;
921 cohort = Targ_FindNode(gn->name, TARG_NOHASH);
925 * Make the cohort invisible as well to avoid duplicating it into
926 * other variables. True, parents of this target won't tend to do
927 * anything with their local variables, but better safe than
928 * sorry. (I think this is pointless now, since the relevant list
929 * traversals will no longer see this node anyway. -mycroft)
931 cohort->type = op | OP_INVISIBLE;
932 (void)Lst_AtEnd(gn->cohorts, cohort);
933 cohort->centurion = gn;
934 gn->unmade_cohorts += 1;
935 snprintf(cohort->cohort_num, sizeof cohort->cohort_num, "#%d",
939 * We don't want to nuke any previous flags (whatever they were) so we
940 * just OR the new operator into the old
949 *---------------------------------------------------------------------
951 * Given the name of a source, figure out if it is an attribute
952 * and apply it to the targets if it is. Else decide if there is
953 * some attribute which should be applied *to* the source because
954 * of some special target and apply it if so. Otherwise, make the
955 * source be a child of the targets in the list 'targets'
958 * tOp operator (if any) from special targets
959 * src name of the source to handle
965 * Operator bits may be added to the list of targets or to the source.
966 * The targets may have a new source added to their lists of children.
967 *---------------------------------------------------------------------
970 ParseDoSrc(int tOp, const char *src)
973 static int wait_number = 0;
976 if (*src == '.' && isupper ((unsigned char)src[1])) {
977 int keywd = ParseFindKeyword(src);
979 int op = parseKeywords[keywd].op;
981 Lst_ForEach(targets, ParseDoOp, &op);
984 if (parseKeywords[keywd].spec == Wait) {
986 * We add a .WAIT node in the dependency list.
987 * After any dynamic dependencies (and filename globbing)
988 * have happened, it is given a dependency on the each
989 * previous child back to and previous .WAIT node.
990 * The next child won't be scheduled until the .WAIT node
992 * We give each .WAIT node a unique name (mainly for diag).
994 snprintf(wait_src, sizeof wait_src, ".WAIT_%u", ++wait_number);
995 gn = Targ_FindNode(wait_src, TARG_NOHASH);
998 gn->type = OP_WAIT | OP_PHONY | OP_DEPENDS | OP_NOTMAIN;
999 Lst_ForEach(targets, ParseLinkSrc, gn);
1008 * If we have noted the existence of a .MAIN, it means we need
1009 * to add the sources of said target to the list of things
1010 * to create. The string 'src' is likely to be free, so we
1011 * must make a new copy of it. Note that this will only be
1012 * invoked if the user didn't specify a target on the command
1013 * line. This is to allow #ifmake's to succeed, or something...
1015 (void)Lst_AtEnd(create, bmake_strdup(src));
1017 * Add the name to the .TARGETS variable as well, so the user can
1018 * employ that, if desired.
1020 Var_Append(".TARGETS", src, VAR_GLOBAL);
1025 * Create proper predecessor/successor links between the previous
1026 * source and the current one.
1028 gn = Targ_FindNode(src, TARG_CREATE);
1031 if (predecessor != NULL) {
1032 (void)Lst_AtEnd(predecessor->order_succ, gn);
1033 (void)Lst_AtEnd(gn->order_pred, predecessor);
1035 fprintf(debug_file, "# %s: added Order dependency %s - %s\n",
1036 __func__, predecessor->name, gn->name);
1037 Targ_PrintNode(predecessor, 0);
1038 Targ_PrintNode(gn, 0);
1042 * The current source now becomes the predecessor for the next one.
1049 * If the source is not an attribute, we need to find/create
1050 * a node for it. After that we can apply any operator to it
1051 * from a special target or link it to its parents, as
1054 * In the case of a source that was the object of a :: operator,
1055 * the attribute is applied to all of its instances (as kept in
1056 * the 'cohorts' list of the node) or all the cohorts are linked
1057 * to all the targets.
1060 /* Find/create the 'src' node and attach to all targets */
1061 gn = Targ_FindNode(src, TARG_CREATE);
1067 Lst_ForEach(targets, ParseLinkSrc, gn);
1074 *-----------------------------------------------------------------------
1076 * Find a real target in the list and set it to be the main one.
1077 * Called by ParseDoDependency when a main target hasn't been found
1081 * gnp Node to examine
1084 * 0 if main not found yet, 1 if it is.
1087 * mainNode is changed and Targ_SetMain is called.
1089 *-----------------------------------------------------------------------
1092 ParseFindMain(void *gnp, void *dummy)
1094 GNode *gn = (GNode *)gnp;
1095 if ((gn->type & OP_NOTARGET) == 0) {
1098 return (dummy ? 1 : 1);
1100 return (dummy ? 0 : 0);
1105 *-----------------------------------------------------------------------
1107 * Front-end for Dir_AddDir to make sure Lst_ForEach keeps going
1115 *-----------------------------------------------------------------------
1118 ParseAddDir(void *path, void *name)
1120 (void)Dir_AddDir((Lst) path, (char *)name);
1125 *-----------------------------------------------------------------------
1127 * Front-end for Dir_ClearPath to make sure Lst_ForEach keeps going
1135 *-----------------------------------------------------------------------
1138 ParseClearPath(void *path, void *dummy)
1140 Dir_ClearPath((Lst) path);
1141 return(dummy ? 0 : 0);
1145 *---------------------------------------------------------------------
1146 * ParseDoDependency --
1147 * Parse the dependency line in line.
1150 * line the line to parse
1156 * The nodes of the sources are linked as children to the nodes of the
1157 * targets. Some nodes may be created.
1159 * We parse a dependency line by first extracting words from the line and
1160 * finding nodes in the list of all targets with that name. This is done
1161 * until a character is encountered which is an operator character. Currently
1162 * these are only ! and :. At this point the operator is parsed and the
1163 * pointer into the line advanced until the first source is encountered.
1164 * The parsed operator is applied to each node in the 'targets' list,
1165 * which is where the nodes found for the targets are kept, by means of
1166 * the ParseDoOp function.
1167 * The sources are read in much the same way as the targets were except
1168 * that now they are expanded using the wildcarding scheme of the C-Shell
1169 * and all instances of the resulting words in the list of all targets
1170 * are found. Each of the resulting nodes is then linked to each of the
1171 * targets as one of its children.
1172 * Certain targets are handled specially. These are the ones detailed
1173 * by the specType variable.
1174 * The storing of transformation rules is also taken care of here.
1175 * A target is recognized as a transformation rule by calling
1176 * Suff_IsTransform. If it is a transformation rule, its node is gotten
1177 * from the suffix module via Suff_AddTransform rather than the standard
1178 * Targ_FindNode in the target module.
1179 *---------------------------------------------------------------------
1182 ParseDoDependency(char *line)
1184 char *cp; /* our current position */
1185 GNode *gn = NULL; /* a general purpose temporary node */
1186 int op; /* the operator on the line */
1187 char savec; /* a place to save a character */
1188 Lst paths; /* List of search paths to alter when parsing
1189 * a list of .PATH targets */
1190 int tOp; /* operator from special target */
1191 Lst sources; /* list of archive source names after
1193 Lst curTargs; /* list of target names to be found and added
1194 * to the targets list */
1195 char *lstart = line;
1198 fprintf(debug_file, "ParseDoDependency(%s)\n", line);
1204 curTargs = Lst_Init(FALSE);
1207 * First, grind through the targets.
1212 * Here LINE points to the beginning of the next word, and
1213 * LSTART points to the actual beginning of the line.
1216 /* Find the end of the next word. */
1217 for (cp = line; *cp && (ParseIsEscaped(lstart, cp) ||
1218 !(isspace((unsigned char)*cp) ||
1219 *cp == '!' || *cp == ':' || *cp == LPAREN));
1223 * Must be a dynamic source (would have been expanded
1224 * otherwise), so call the Var module to parse the puppy
1225 * so we can safely advance beyond it...There should be
1226 * no errors in this, as they would have been discovered
1227 * in the initial Var_Subst and we wouldn't be here.
1232 (void)Var_Parse(cp, VAR_CMD, TRUE, &length, &freeIt);
1240 * If the word is followed by a left parenthesis, it's the
1241 * name of an object file inside an archive (ar file).
1243 if (!ParseIsEscaped(lstart, cp) && *cp == LPAREN) {
1245 * Archives must be handled specially to make sure the OP_ARCHV
1246 * flag is set in their 'type' field, for one thing, and because
1247 * things like "archive(file1.o file2.o file3.o)" are permissible.
1248 * Arch_ParseArchive will set 'line' to be the first non-blank
1249 * after the archive-spec. It creates/finds nodes for the members
1250 * and places them on the given list, returning SUCCESS if all
1251 * went well and FAILURE if there was an error in the
1252 * specification. On error, line should remain untouched.
1254 if (Arch_ParseArchive(&line, targets, VAR_CMD) != SUCCESS) {
1255 Parse_Error(PARSE_FATAL,
1256 "Error in archive specification: \"%s\"", line);
1259 /* Done with this word; on to the next. */
1266 * We got to the end of the line while we were still
1267 * looking at targets.
1269 * Ending a dependency line without an operator is a Bozo
1270 * no-no. As a heuristic, this is also often triggered by
1271 * undetected conflicts from cvs/rcs merges.
1273 if ((strncmp(line, "<<<<<<", 6) == 0) ||
1274 (strncmp(line, "======", 6) == 0) ||
1275 (strncmp(line, ">>>>>>", 6) == 0))
1276 Parse_Error(PARSE_FATAL,
1277 "Makefile appears to contain unresolved cvs/rcs/??? merge conflicts");
1279 Parse_Error(PARSE_FATAL, lstart[0] == '.' ? "Unknown directive"
1280 : "Need an operator");
1284 /* Insert a null terminator. */
1289 * Got the word. See if it's a special target and if so set
1290 * specType to match it.
1292 if (*line == '.' && isupper ((unsigned char)line[1])) {
1294 * See if the target is a special target that must have it
1295 * or its sources handled specially.
1297 int keywd = ParseFindKeyword(line);
1299 if (specType == ExPath && parseKeywords[keywd].spec != ExPath) {
1300 Parse_Error(PARSE_FATAL, "Mismatched special targets");
1304 specType = parseKeywords[keywd].spec;
1305 tOp = parseKeywords[keywd].op;
1308 * Certain special targets have special semantics:
1309 * .PATH Have to set the dirSearchPath
1311 * .MAIN Its sources are only used if
1312 * nothing has been specified to
1314 * .DEFAULT Need to create a node to hang
1315 * commands on, but we don't want
1316 * it in the graph, nor do we want
1317 * it to be the Main Target, so we
1318 * create it, set OP_NOTMAIN and
1319 * add it to the list, setting
1320 * DEFAULT to the new node for
1321 * later use. We claim the node is
1322 * A transformation rule to make
1323 * life easier later, when we'll
1324 * use Make_HandleUse to actually
1325 * apply the .DEFAULT commands.
1326 * .PHONY The list of targets
1327 * .NOPATH Don't search for file in the path
1332 * .INTERRUPT Are not to be considered the
1334 * .NOTPARALLEL Make only one target at a time.
1335 * .SINGLESHELL Create a shell for each command.
1336 * .ORDER Must set initial predecessor to NULL
1340 if (paths == NULL) {
1341 paths = Lst_Init(FALSE);
1343 (void)Lst_AtEnd(paths, dirSearchPath);
1346 if (!Lst_IsEmpty(create)) {
1355 gn = Targ_FindNode(line, TARG_CREATE);
1358 gn->type |= OP_NOTMAIN|OP_SPECIAL;
1359 (void)Lst_AtEnd(targets, gn);
1362 gn = Targ_NewGN(".DEFAULT");
1363 gn->type |= (OP_NOTMAIN|OP_TRANSFORM);
1364 (void)Lst_AtEnd(targets, gn);
1379 } else if (strncmp(line, ".PATH", 5) == 0) {
1381 * .PATH<suffix> has to be handled specially.
1382 * Call on the suffix module to give us a path to
1388 path = Suff_GetPath(&line[5]);
1390 Parse_Error(PARSE_FATAL,
1391 "Suffix '%s' not defined (yet)",
1395 if (paths == NULL) {
1396 paths = Lst_Init(FALSE);
1398 (void)Lst_AtEnd(paths, path);
1404 * Have word in line. Get or create its node and stick it at
1405 * the end of the targets list
1407 if ((specType == Not) && (*line != '\0')) {
1408 if (Dir_HasWildcards(line)) {
1410 * Targets are to be sought only in the current directory,
1411 * so create an empty path for the thing. Note we need to
1412 * use Dir_Destroy in the destruction of the path as the
1413 * Dir module could have added a directory to the path...
1415 Lst emptyPath = Lst_Init(FALSE);
1417 Dir_Expand(line, emptyPath, curTargs);
1419 Lst_Destroy(emptyPath, Dir_Destroy);
1422 * No wildcards, but we want to avoid code duplication,
1423 * so create a list with the word on it.
1425 (void)Lst_AtEnd(curTargs, line);
1428 /* Apply the targets. */
1430 while(!Lst_IsEmpty(curTargs)) {
1431 char *targName = (char *)Lst_DeQueue(curTargs);
1433 if (!Suff_IsTransform (targName)) {
1434 gn = Targ_FindNode(targName, TARG_CREATE);
1436 gn = Suff_AddTransform(targName);
1441 (void)Lst_AtEnd(targets, gn);
1443 } else if (specType == ExPath && *line != '.' && *line != '\0') {
1444 Parse_Error(PARSE_WARNING, "Extra target (%s) ignored", line);
1447 /* Don't need the inserted null terminator any more. */
1451 * If it is a special type and not .PATH, it's the only target we
1452 * allow on this line...
1454 if (specType != Not && specType != ExPath) {
1455 Boolean warning = FALSE;
1457 while (*cp && (ParseIsEscaped(lstart, cp) ||
1458 ((*cp != '!') && (*cp != ':')))) {
1459 if (ParseIsEscaped(lstart, cp) ||
1460 (*cp != ' ' && *cp != '\t')) {
1466 Parse_Error(PARSE_WARNING, "Extra target ignored");
1469 while (*cp && isspace ((unsigned char)*cp)) {
1474 } while (*line && (ParseIsEscaped(lstart, line) ||
1475 ((*line != '!') && (*line != ':'))));
1478 * Don't need the list of target names anymore...
1480 Lst_Destroy(curTargs, NULL);
1483 if (!Lst_IsEmpty(targets)) {
1486 Parse_Error(PARSE_WARNING, "Special and mundane targets don't mix. Mundane ones ignored");
1495 * These four create nodes on which to hang commands, so
1496 * targets shouldn't be empty...
1500 * Nothing special here -- targets can be empty if it wants.
1507 * Have now parsed all the target names. Must parse the operator next. The
1508 * result is left in op .
1512 } else if (*cp == ':') {
1520 Parse_Error(PARSE_FATAL, lstart[0] == '.' ? "Unknown directive"
1521 : "Missing dependency operator");
1525 /* Advance beyond the operator */
1529 * Apply the operator to the target. This is how we remember which
1530 * operator a target was defined with. It fails if the operator
1531 * used isn't consistent across all references.
1533 Lst_ForEach(targets, ParseDoOp, &op);
1536 * Onward to the sources.
1538 * LINE will now point to the first source word, if any, or the
1539 * end of the string if not.
1541 while (*cp && isspace ((unsigned char)*cp)) {
1547 * Several special targets take different actions if present with no
1549 * a .SUFFIXES line with no sources clears out all old suffixes
1550 * a .PRECIOUS line makes all targets precious
1551 * a .IGNORE line ignores errors for all targets
1552 * a .SILENT line creates silence when making all targets
1553 * a .PATH removes all directories from the search path(s).
1558 Suff_ClearSuffixes();
1564 ignoreErrors = TRUE;
1570 Lst_ForEach(paths, ParseClearPath, NULL);
1575 Var_Set("%POSIX", "1003.2", VAR_GLOBAL, 0);
1581 } else if (specType == MFlags) {
1583 * Call on functions in main.c to deal with these arguments and
1584 * set the initial character to a null-character so the loop to
1585 * get sources won't get anything
1587 Main_ParseArgLine(line);
1589 } else if (specType == ExShell) {
1590 if (Job_ParseShell(line) != SUCCESS) {
1591 Parse_Error(PARSE_FATAL, "improper shell specification");
1595 } else if ((specType == NotParallel) || (specType == SingleShell)) {
1600 * NOW GO FOR THE SOURCES
1602 if ((specType == Suffixes) || (specType == ExPath) ||
1603 (specType == Includes) || (specType == Libs) ||
1604 (specType == Null) || (specType == ExObjdir))
1608 * If the target was one that doesn't take files as its sources
1609 * but takes something like suffixes, we take each
1610 * space-separated word on the line as a something and deal
1611 * with it accordingly.
1613 * If the target was .SUFFIXES, we take each source as a
1614 * suffix and add it to the list of suffixes maintained by the
1617 * If the target was a .PATH, we add the source as a directory
1618 * to search on the search path.
1620 * If it was .INCLUDES, the source is taken to be the suffix of
1621 * files which will be #included and whose search path should
1622 * be present in the .INCLUDES variable.
1624 * If it was .LIBS, the source is taken to be the suffix of
1625 * files which are considered libraries and whose search path
1626 * should be present in the .LIBS variable.
1628 * If it was .NULL, the source is the suffix to use when a file
1629 * has no valid suffix.
1631 * If it was .OBJDIR, the source is a new definition for .OBJDIR,
1632 * and will cause make to do a new chdir to that path.
1634 while (*cp && !isspace ((unsigned char)*cp)) {
1641 Suff_AddSuffix(line, &mainNode);
1644 Lst_ForEach(paths, ParseAddDir, line);
1647 Suff_AddInclude(line);
1656 Main_SetObjdir(line);
1662 if (savec != '\0') {
1665 while (*cp && isspace ((unsigned char)*cp)) {
1671 Lst_Destroy(paths, NULL);
1673 if (specType == ExPath)
1678 * The targets take real sources, so we must beware of archive
1679 * specifications (i.e. things with left parentheses in them)
1680 * and handle them accordingly.
1682 for (; *cp && !isspace ((unsigned char)*cp); cp++) {
1683 if ((*cp == LPAREN) && (cp > line) && (cp[-1] != '$')) {
1685 * Only stop for a left parenthesis if it isn't at the
1686 * start of a word (that'll be for variable changes
1687 * later) and isn't preceded by a dollar sign (a dynamic
1694 if (*cp == LPAREN) {
1695 sources = Lst_Init(FALSE);
1696 if (Arch_ParseArchive(&line, sources, VAR_CMD) != SUCCESS) {
1697 Parse_Error(PARSE_FATAL,
1698 "Error in source archive spec \"%s\"", line);
1702 while (!Lst_IsEmpty (sources)) {
1703 gn = (GNode *)Lst_DeQueue(sources);
1704 ParseDoSrc(tOp, gn->name);
1706 Lst_Destroy(sources, NULL);
1714 ParseDoSrc(tOp, line);
1716 while (*cp && isspace ((unsigned char)*cp)) {
1723 if (mainNode == NULL) {
1725 * If we have yet to decide on a main target to make, in the
1726 * absence of any user input, we want the first target on
1727 * the first dependency line that is actually a real target
1728 * (i.e. isn't a .USE or .EXEC rule) to be made.
1730 Lst_ForEach(targets, ParseFindMain, NULL);
1735 Lst_Destroy(curTargs, NULL);
1739 *---------------------------------------------------------------------
1741 * Return TRUE if the passed line is a variable assignment. A variable
1742 * assignment consists of a single word followed by optional whitespace
1743 * followed by either a += or an = operator.
1744 * This function is used both by the Parse_File function and main when
1745 * parsing the command-line arguments.
1748 * line the line to check
1751 * TRUE if it is. FALSE if it ain't
1755 *---------------------------------------------------------------------
1758 Parse_IsVar(char *line)
1760 Boolean wasSpace = FALSE; /* set TRUE if found a space */
1763 #define ISEQOPERATOR(c) \
1764 (((c) == '+') || ((c) == ':') || ((c) == '?') || ((c) == '!'))
1767 * Skip to variable name
1769 for (;(*line == ' ') || (*line == '\t'); line++)
1772 /* Scan for one of the assignment operators outside a variable expansion */
1773 while ((ch = *line++) != 0) {
1774 if (ch == '(' || ch == '{') {
1778 if (ch == ')' || ch == '}') {
1784 while (ch == ' ' || ch == '\t') {
1789 if (ch == ':' && strncmp(line, "sh", 2) == 0) {
1796 if (*line == '=' && ISEQOPERATOR(ch))
1806 *---------------------------------------------------------------------
1808 * Take the variable assignment in the passed line and do it in the
1811 * Note: There is a lexical ambiguity with assignment modifier characters
1812 * in variable names. This routine interprets the character before the =
1813 * as a modifier. Therefore, an assignment like
1815 * is interpreted as "C+ +=" instead of "C++ =".
1818 * line a line guaranteed to be a variable assignment.
1819 * This reduces error checks
1820 * ctxt Context in which to do the assignment
1826 * the variable structure of the given variable name is altered in the
1828 *---------------------------------------------------------------------
1831 Parse_DoVar(char *line, GNode *ctxt)
1833 char *cp; /* pointer into line */
1835 VAR_SUBST, VAR_APPEND, VAR_SHELL, VAR_NORMAL
1836 } type; /* Type of assignment */
1837 char *opc; /* ptr to operator character to
1838 * null-terminate the variable name */
1839 Boolean freeCp = FALSE; /* TRUE if cp needs to be freed,
1840 * i.e. if any variable expansion was
1845 * Skip to variable name
1847 while ((*line == ' ') || (*line == '\t')) {
1852 * Skip to operator character, nulling out whitespace as we go
1853 * XXX Rather than counting () and {} we should look for $ and
1854 * then expand the variable.
1856 for (depth = 0, cp = line + 1; depth != 0 || *cp != '='; cp++) {
1857 if (*cp == '(' || *cp == '{') {
1861 if (*cp == ')' || *cp == '}') {
1865 if (depth == 0 && isspace ((unsigned char)*cp)) {
1869 opc = cp-1; /* operator is the previous character */
1870 *cp++ = '\0'; /* nuke the = */
1873 * Check operator type
1883 * If the variable already has a value, we don't do anything.
1886 if (Var_Exists(line, ctxt)) {
1905 while (opc > line && *opc != ':')
1908 if (strncmp(opc, ":sh", 3) == 0) {
1918 while (isspace ((unsigned char)*cp)) {
1922 if (type == VAR_APPEND) {
1923 Var_Append(line, cp, ctxt);
1924 } else if (type == VAR_SUBST) {
1926 * Allow variables in the old value to be undefined, but leave their
1927 * invocation alone -- this is done by forcing oldVars to be false.
1928 * XXX: This can cause recursive variables, but that's not hard to do,
1929 * and this allows someone to do something like
1931 * CFLAGS = $(.INCLUDES)
1932 * CFLAGS := -I.. $(CFLAGS)
1934 * And not get an error.
1936 Boolean oldOldVars = oldVars;
1941 * make sure that we set the variable the first time to nothing
1942 * so that it gets substituted!
1944 if (!Var_Exists(line, ctxt))
1945 Var_Set(line, "", ctxt, 0);
1947 cp = Var_Subst(NULL, cp, ctxt, FALSE);
1948 oldVars = oldOldVars;
1951 Var_Set(line, cp, ctxt, 0);
1952 } else if (type == VAR_SHELL) {
1956 if (strchr(cp, '$') != NULL) {
1958 * There's a dollar sign in the command, so perform variable
1959 * expansion on the whole thing. The resulting string will need
1960 * freeing when we're done, so set freeCmd to TRUE.
1962 cp = Var_Subst(NULL, cp, VAR_CMD, TRUE);
1966 res = Cmd_Exec(cp, &error);
1967 Var_Set(line, res, ctxt, 0);
1971 Parse_Error(PARSE_WARNING, error, cp);
1974 * Normal assignment -- just do it.
1976 Var_Set(line, cp, ctxt, 0);
1978 if (strcmp(line, MAKEOVERRIDES) == 0)
1979 Main_ExportMAKEFLAGS(FALSE); /* re-export MAKEFLAGS */
1980 else if (strcmp(line, ".CURDIR") == 0) {
1982 * Somone is being (too?) clever...
1983 * Let's pretend they know what they are doing and
1984 * re-initialize the 'cur' Path.
1988 } else if (strcmp(line, MAKE_JOB_PREFIX) == 0) {
1990 } else if (strcmp(line, MAKE_EXPORTED) == 0) {
1999 * ParseMaybeSubMake --
2000 * Scan the command string to see if it a possible submake node
2002 * cmd the command to scan
2004 * TRUE if the command is possibly a submake, FALSE if not.
2007 ParseMaybeSubMake(const char *cmd)
2014 #define MKV(A) { A, sizeof(A) - 1 }
2021 for (i = 0; i < sizeof(vals)/sizeof(vals[0]); i++) {
2023 if ((ptr = strstr(cmd, vals[i].name)) == NULL)
2025 if ((ptr == cmd || !isalnum((unsigned char)ptr[-1]))
2026 && !isalnum((unsigned char)ptr[vals[i].len]))
2034 * Lst_ForEach function to add a command line to all targets
2037 * gnp the node to which the command is to be added
2038 * cmd the command to add
2044 * A new element is added to the commands list of the node,
2045 * and the node can be marked as a submake node if the command is
2046 * determined to be that.
2049 ParseAddCmd(void *gnp, void *cmd)
2051 GNode *gn = (GNode *)gnp;
2053 /* Add to last (ie current) cohort for :: targets */
2054 if ((gn->type & OP_DOUBLEDEP) && !Lst_IsEmpty (gn->cohorts))
2055 gn = (GNode *)Lst_Datum(Lst_Last(gn->cohorts));
2057 /* if target already supplied, ignore commands */
2058 if (!(gn->type & OP_HAS_COMMANDS)) {
2059 (void)Lst_AtEnd(gn->commands, cmd);
2060 if (ParseMaybeSubMake(cmd))
2061 gn->type |= OP_SUBMAKE;
2065 /* XXX: We cannot do this until we fix the tree */
2066 (void)Lst_AtEnd(gn->commands, cmd);
2067 Parse_Error(PARSE_WARNING,
2068 "overriding commands for target \"%s\"; "
2069 "previous commands defined at %s: %d ignored",
2070 gn->name, gn->fname, gn->lineno);
2072 Parse_Error(PARSE_WARNING,
2073 "duplicate script for target \"%s\" ignored",
2075 ParseErrorInternal(gn->fname, gn->lineno, PARSE_WARNING,
2076 "using previous script for \"%s\" defined here",
2084 *-----------------------------------------------------------------------
2085 * ParseHasCommands --
2086 * Callback procedure for Parse_File when destroying the list of
2087 * targets on the last dependency line. Marks a target as already
2088 * having commands if it does, to keep from having shell commands
2089 * on multiple dependency lines.
2092 * gnp Node to examine
2098 * OP_HAS_COMMANDS may be set for the target.
2100 *-----------------------------------------------------------------------
2103 ParseHasCommands(void *gnp)
2105 GNode *gn = (GNode *)gnp;
2106 if (!Lst_IsEmpty(gn->commands)) {
2107 gn->type |= OP_HAS_COMMANDS;
2112 *-----------------------------------------------------------------------
2113 * Parse_AddIncludeDir --
2114 * Add a directory to the path searched for included makefiles
2115 * bracketed by double-quotes. Used by functions in main.c
2118 * dir The name of the directory to add
2124 * The directory is appended to the list.
2126 *-----------------------------------------------------------------------
2129 Parse_AddIncludeDir(char *dir)
2131 (void)Dir_AddDir(parseIncPath, dir);
2135 *---------------------------------------------------------------------
2137 * Push to another file.
2139 * The input is the line minus the `.'. A file spec is a string
2140 * enclosed in <> or "". The former is looked for only in sysIncPath.
2141 * The latter in . and the directories specified by -I command line
2148 * A structure is added to the includes Lst and readProc, lineno,
2149 * fname and curFILE are altered for the new file
2150 *---------------------------------------------------------------------
2154 Parse_include_file(char *file, Boolean isSystem, int silent)
2156 struct loadedfile *lf;
2157 char *fullname; /* full pathname of file */
2159 char *prefEnd, *incdir;
2164 * Now we know the file's name and its search path, we attempt to
2165 * find the durn thing. A return of NULL indicates the file don't
2168 fullname = file[0] == '/' ? bmake_strdup(file) : NULL;
2170 if (fullname == NULL && !isSystem) {
2172 * Include files contained in double-quotes are first searched for
2173 * relative to the including file's location. We don't want to
2174 * cd there, of course, so we just tack on the old file's
2175 * leading path components and call Dir_FindFile to see if
2176 * we can locate the beast.
2179 incdir = bmake_strdup(curFile->fname);
2180 prefEnd = strrchr(incdir, '/');
2181 if (prefEnd != NULL) {
2183 /* Now do lexical processing of leading "../" on the filename */
2184 for (i = 0; strncmp(file + i, "../", 3) == 0; i += 3) {
2185 prefEnd = strrchr(incdir + 1, '/');
2186 if (prefEnd == NULL || strcmp(prefEnd, "/..") == 0)
2190 newName = str_concat(incdir, file + i, STR_ADDSLASH);
2191 fullname = Dir_FindFile(newName, parseIncPath);
2192 if (fullname == NULL)
2193 fullname = Dir_FindFile(newName, dirSearchPath);
2198 if (fullname == NULL) {
2200 * Makefile wasn't found in same directory as included makefile.
2201 * Search for it first on the -I search path,
2202 * then on the .PATH search path, if not found in a -I directory.
2203 * If we have a suffix specific path we should use that.
2206 Lst suffPath = NULL;
2208 if ((suff = strrchr(file, '.'))) {
2209 suffPath = Suff_GetPath(suff);
2210 if (suffPath != NULL) {
2211 fullname = Dir_FindFile(file, suffPath);
2214 if (fullname == NULL) {
2215 fullname = Dir_FindFile(file, parseIncPath);
2216 if (fullname == NULL) {
2217 fullname = Dir_FindFile(file, dirSearchPath);
2223 /* Looking for a system file or file still not found */
2224 if (fullname == NULL) {
2226 * Look for it on the system path
2228 fullname = Dir_FindFile(file,
2229 Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath);
2232 if (fullname == NULL) {
2234 Parse_Error(PARSE_FATAL, "Could not find %s", file);
2238 /* Actually open the file... */
2239 fd = open(fullname, O_RDONLY);
2242 Parse_Error(PARSE_FATAL, "Cannot open %s", fullname);
2248 lf = loadfile(fullname, fd);
2250 ParseSetIncludedFile();
2251 /* Start reading from this file next */
2252 Parse_SetInput(fullname, 0, -1, loadedfile_nextbuf, lf);
2257 ParseDoInclude(char *line)
2259 char endc; /* the character which ends the file spec */
2260 char *cp; /* current position in file spec */
2261 int silent = (*line != 'i') ? 1 : 0;
2262 char *file = &line[7 + silent];
2264 /* Skip to delimiter character so we know where to look */
2265 while (*file == ' ' || *file == '\t')
2268 if (*file != '"' && *file != '<') {
2269 Parse_Error(PARSE_FATAL,
2270 ".include filename must be delimited by '\"' or '<'");
2275 * Set the search path on which to find the include file based on the
2276 * characters which bracket its name. Angle-brackets imply it's
2277 * a system Makefile while double-quotes imply it's a user makefile
2285 /* Skip to matching delimiter */
2286 for (cp = ++file; *cp && *cp != endc; cp++)
2290 Parse_Error(PARSE_FATAL,
2291 "Unclosed %cinclude filename. '%c' expected",
2298 * Substitute for any variables in the file name before trying to
2301 file = Var_Subst(NULL, file, VAR_CMD, FALSE);
2303 Parse_include_file(file, endc == '>', silent);
2309 *---------------------------------------------------------------------
2310 * ParseSetIncludedFile --
2311 * Set the .INCLUDEDFROMFILE variable to the contents of .PARSEFILE
2312 * and the .INCLUDEDFROMDIR variable to the contents of .PARSEDIR
2318 * The .INCLUDEDFROMFILE variable is overwritten by the contents
2319 * of .PARSEFILE and the .INCLUDEDFROMDIR variable is overwriten
2320 * by the contents of .PARSEDIR
2321 *---------------------------------------------------------------------
2324 ParseSetIncludedFile(void)
2326 char *pf, *fp = NULL;
2327 char *pd, *dp = NULL;
2329 pf = Var_Value(".PARSEFILE", VAR_GLOBAL, &fp);
2330 Var_Set(".INCLUDEDFROMFILE", pf, VAR_GLOBAL, 0);
2331 pd = Var_Value(".PARSEDIR", VAR_GLOBAL, &dp);
2332 Var_Set(".INCLUDEDFROMDIR", pd, VAR_GLOBAL, 0);
2335 fprintf(debug_file, "%s: ${.INCLUDEDFROMDIR} = `%s' "
2336 "${.INCLUDEDFROMFILE} = `%s'\n", __func__, pd, pf);
2344 *---------------------------------------------------------------------
2345 * ParseSetParseFile --
2346 * Set the .PARSEDIR and .PARSEFILE variables to the dirname and
2347 * basename of the given filename
2353 * The .PARSEDIR and .PARSEFILE variables are overwritten by the
2354 * dirname and basename of the given filename.
2355 *---------------------------------------------------------------------
2358 ParseSetParseFile(const char *filename)
2360 char *slash, *dirname;
2361 const char *pd, *pf;
2364 slash = strrchr(filename, '/');
2365 if (slash == NULL) {
2366 Var_Set(".PARSEDIR", pd = curdir, VAR_GLOBAL, 0);
2367 Var_Set(".PARSEFILE", pf = filename, VAR_GLOBAL, 0);
2370 len = slash - filename;
2371 dirname = bmake_malloc(len + 1);
2372 memcpy(dirname, filename, len);
2373 dirname[len] = '\0';
2374 Var_Set(".PARSEDIR", pd = dirname, VAR_GLOBAL, 0);
2375 Var_Set(".PARSEFILE", pf = slash + 1, VAR_GLOBAL, 0);
2378 fprintf(debug_file, "%s: ${.PARSEDIR} = `%s' ${.PARSEFILE} = `%s'\n",
2384 * Track the makefiles we read - so makefiles can
2385 * set dependencies on them.
2386 * Avoid adding anything more than once.
2390 ParseTrackInput(const char *name)
2394 size_t name_len = strlen(name);
2396 old = Var_Value(MAKE_MAKEFILES, VAR_GLOBAL, &fp);
2398 /* does it contain name? */
2399 for (; old != NULL; old = strchr(old, ' ')) {
2402 if (memcmp(old, name, name_len) == 0
2403 && (old[name_len] == 0 || old[name_len] == ' '))
2407 Var_Append (MAKE_MAKEFILES, name, VAR_GLOBAL);
2416 *---------------------------------------------------------------------
2418 * Start Parsing from the given source
2424 * A structure is added to the includes Lst and readProc, lineno,
2425 * fname and curFile are altered for the new file
2426 *---------------------------------------------------------------------
2429 Parse_SetInput(const char *name, int line, int fd,
2430 char *(*nextbuf)(void *, size_t *), void *arg)
2436 name = curFile->fname;
2438 ParseTrackInput(name);
2441 fprintf(debug_file, "%s: file %s, line %d, fd %d, nextbuf %p, arg %p\n",
2442 __func__, name, line, fd, nextbuf, arg);
2444 if (fd == -1 && nextbuf == NULL)
2448 if (curFile != NULL)
2449 /* Save exiting file info */
2450 Lst_AtFront(includes, curFile);
2452 /* Allocate and fill in new structure */
2453 curFile = bmake_malloc(sizeof *curFile);
2456 * Once the previous state has been saved, we can get down to reading
2457 * the new file. We set up the name of the file to be the absolute
2458 * name of the include file so error messages refer to the right
2461 curFile->fname = bmake_strdup(name);
2462 curFile->lineno = line;
2463 curFile->first_lineno = line;
2464 curFile->nextbuf = nextbuf;
2465 curFile->nextbuf_arg = arg;
2468 assert(nextbuf != NULL);
2470 /* Get first block of input data */
2471 buf = curFile->nextbuf(curFile->nextbuf_arg, &len);
2473 /* Was all a waste of time ... */
2475 free(curFile->fname);
2479 curFile->P_str = buf;
2480 curFile->P_ptr = buf;
2481 curFile->P_end = buf+len;
2483 curFile->cond_depth = Cond_save_depth();
2484 ParseSetParseFile(name);
2489 *---------------------------------------------------------------------
2490 * ParseTraditionalInclude --
2491 * Push to another file.
2493 * The input is the current line. The file name(s) are
2494 * following the "include".
2500 * A structure is added to the includes Lst and readProc, lineno,
2501 * fname and curFILE are altered for the new file
2502 *---------------------------------------------------------------------
2505 ParseTraditionalInclude(char *line)
2507 char *cp; /* current position in file spec */
2509 int silent = (line[0] != 'i') ? 1 : 0;
2510 char *file = &line[silent + 7];
2514 fprintf(debug_file, "%s: %s\n", __func__, file);
2518 * Skip over whitespace
2520 while (isspace((unsigned char)*file))
2524 * Substitute for any variables in the file name before trying to
2527 all_files = Var_Subst(NULL, file, VAR_CMD, FALSE);
2529 if (*file == '\0') {
2530 Parse_Error(PARSE_FATAL,
2531 "Filename missing from \"include\"");
2535 for (file = all_files; !done; file = cp + 1) {
2536 /* Skip to end of line or next whitespace */
2537 for (cp = file; *cp && !isspace((unsigned char) *cp); cp++)
2545 Parse_include_file(file, FALSE, silent);
2553 *---------------------------------------------------------------------
2554 * ParseGmakeExport --
2555 * Parse export <variable>=<value>
2557 * And set the environment with it.
2564 *---------------------------------------------------------------------
2567 ParseGmakeExport(char *line)
2569 char *variable = &line[6];
2573 fprintf(debug_file, "%s: %s\n", __func__, variable);
2577 * Skip over whitespace
2579 while (isspace((unsigned char)*variable))
2582 for (value = variable; *value && *value != '='; value++)
2585 if (*value != '=') {
2586 Parse_Error(PARSE_FATAL,
2587 "Variable/Value missing from \"export\"");
2590 *value++ = '\0'; /* terminate variable */
2593 * Expand the value before putting it in the environment.
2595 value = Var_Subst(NULL, value, VAR_CMD, FALSE);
2596 setenv(variable, value, 1);
2601 *---------------------------------------------------------------------
2603 * Called when EOF is reached in the current file. If we were reading
2604 * an include file, the includes stack is popped and things set up
2605 * to go back to reading the previous file at the previous location.
2608 * CONTINUE if there's more to do. DONE if not.
2611 * The old curFILE, is closed. The includes list is shortened.
2612 * lineno, curFILE, and fname are changed if CONTINUE is returned.
2613 *---------------------------------------------------------------------
2621 assert(curFile->nextbuf != NULL);
2623 /* get next input buffer, if any */
2624 ptr = curFile->nextbuf(curFile->nextbuf_arg, &len);
2625 curFile->P_ptr = ptr;
2626 curFile->P_str = ptr;
2627 curFile->P_end = ptr + len;
2628 curFile->lineno = curFile->first_lineno;
2634 /* Ensure the makefile (or loop) didn't have mismatched conditionals */
2635 Cond_restore_depth(curFile->cond_depth);
2637 if (curFile->lf != NULL) {
2638 loadedfile_destroy(curFile->lf);
2642 /* Dispose of curFile info */
2643 /* Leak curFile->fname because all the gnodes have pointers to it */
2644 free(curFile->P_str);
2647 curFile = Lst_DeQueue(includes);
2649 if (curFile == NULL) {
2650 /* We've run out of input */
2651 Var_Delete(".PARSEDIR", VAR_GLOBAL);
2652 Var_Delete(".PARSEFILE", VAR_GLOBAL);
2653 Var_Delete(".INCLUDEDFROMDIR", VAR_GLOBAL);
2654 Var_Delete(".INCLUDEDFROMFILE", VAR_GLOBAL);
2659 fprintf(debug_file, "ParseEOF: returning to file %s, line %d\n",
2660 curFile->fname, curFile->lineno);
2662 /* Restore the PARSEDIR/PARSEFILE variables */
2663 ParseSetParseFile(curFile->fname);
2668 #define PARSE_SKIP 2
2671 ParseGetLine(int flags, int *length)
2673 IFile *cf = curFile;
2682 /* Loop through blank lines and comment lines */
2691 if (cf->P_end != NULL && ptr == cf->P_end) {
2697 if (ch == 0 || (ch == '\\' && ptr[1] == 0)) {
2698 if (cf->P_end == NULL)
2699 /* End of string (aka for loop) data */
2701 /* see if there is more we can parse */
2702 while (ptr++ < cf->P_end) {
2703 if ((ch = *ptr) == '\n') {
2704 if (ptr > line && ptr[-1] == '\\')
2706 Parse_Error(PARSE_WARNING,
2707 "Zero byte read from file, skipping rest of line.");
2711 if (cf->nextbuf != NULL) {
2713 * End of this buffer; return EOF and outer logic
2714 * will get the next one. (eww)
2718 Parse_Error(PARSE_FATAL, "Zero byte read from file");
2723 /* Don't treat next character as special, remember first one */
2724 if (escaped == NULL)
2732 if (ch == '#' && comment == NULL) {
2733 /* Remember first '#' for comment stripping */
2734 /* Unless previous char was '[', as in modifier :[#] */
2735 if (!(ptr > line && ptr[-1] == '['))
2741 if (!isspace((unsigned char)ch))
2742 /* We are not interested in trailing whitespace */
2746 /* Save next 'to be processed' location */
2749 /* Check we have a non-comment, non-blank line */
2750 if (line_end == line || comment == line) {
2752 /* At end of file */
2754 /* Parse another line */
2758 /* We now have a line of data */
2761 if (flags & PARSE_RAW) {
2762 /* Leave '\' (etc) in line buffer (eg 'for' lines) */
2763 *length = line_end - line;
2767 if (flags & PARSE_SKIP) {
2768 /* Completely ignore non-directives */
2771 /* We could do more of the .else/.elif/.endif checks here */
2776 /* Brutally ignore anything after a non-escaped '#' in non-commands */
2777 if (comment != NULL && line[0] != '\t') {
2782 /* If we didn't see a '\\' then the in-situ data is fine */
2783 if (escaped == NULL) {
2784 *length = line_end - line;
2788 /* Remove escapes from '\n' and '#' */
2791 for (; ; *tp++ = ch) {
2801 /* Delete '\\' at end of buffer */
2806 if (ch == '#' && line[0] != '\t')
2807 /* Delete '\\' from before '#' on non-command lines */
2811 /* Leave '\\' in buffer for later */
2813 /* Make sure we don't delete an escaped ' ' from the line end */
2818 /* Escaped '\n' replace following whitespace with a single ' ' */
2819 while (ptr[0] == ' ' || ptr[0] == '\t')
2824 /* Delete any trailing spaces - eg from empty continuations */
2825 while (tp > escaped && isspace((unsigned char)tp[-1]))
2829 *length = tp - line;
2834 *---------------------------------------------------------------------
2836 * Read an entire line from the input file. Called only by Parse_File.
2839 * A line w/o its newline
2842 * Only those associated with reading a character
2843 *---------------------------------------------------------------------
2848 char *line; /* Result */
2849 int lineLength; /* Length of result */
2850 int lineno; /* Saved line # */
2854 line = ParseGetLine(0, &lineLength);
2862 * The line might be a conditional. Ask the conditional module
2863 * about it and act accordingly
2865 switch (Cond_Eval(line)) {
2867 /* Skip to next conditional that evaluates to COND_PARSE. */
2869 line = ParseGetLine(PARSE_SKIP, &lineLength);
2870 } while (line && Cond_Eval(line) != COND_PARSE);
2876 case COND_INVALID: /* Not a conditional line */
2877 /* Check for .for loops */
2878 rval = For_Eval(line);
2880 /* Not a .for line */
2883 /* Syntax error - error printed, ignore line */
2885 /* Start of a .for loop */
2886 lineno = curFile->lineno;
2887 /* Accumulate loop lines until matching .endfor */
2889 line = ParseGetLine(PARSE_RAW, &lineLength);
2891 Parse_Error(PARSE_FATAL,
2892 "Unexpected end of file in for loop.");
2895 } while (For_Accum(line));
2896 /* Stash each iteration as a new 'input file' */
2898 /* Read next line from for-loop buffer */
2906 *-----------------------------------------------------------------------
2907 * ParseFinishLine --
2908 * Handle the end of a dependency group.
2914 * inLine set FALSE. 'targets' list destroyed.
2916 *-----------------------------------------------------------------------
2919 ParseFinishLine(void)
2922 Lst_ForEach(targets, Suff_EndTransform, NULL);
2923 Lst_Destroy(targets, ParseHasCommands);
2931 *---------------------------------------------------------------------
2933 * Parse a file into its component parts, incorporating it into the
2934 * current dependency graph. This is the main function and controls
2935 * almost every other function in this module
2938 * name the name of the file being read
2939 * fd Open file to makefile to parse
2946 * Loads. Nodes are added to the list of all targets, nodes and links
2947 * are added to the dependency graph. etc. etc. etc.
2948 *---------------------------------------------------------------------
2951 Parse_File(const char *name, int fd)
2953 char *cp; /* pointer into the line */
2954 char *line; /* the line we're working on */
2955 struct loadedfile *lf;
2957 lf = loadfile(name, fd);
2966 Parse_SetInput(name, 0, -1, loadedfile_nextbuf, lf);
2970 for (; (line = ParseReadLine()) != NULL; ) {
2972 fprintf(debug_file, "ParseReadLine (%d): '%s'\n",
2973 curFile->lineno, line);
2976 * Lines that begin with the special character may be
2977 * include or undef directives.
2978 * On the other hand they can be suffix rules (.c.o: ...)
2979 * or just dependencies for filenames that start '.'.
2981 for (cp = line + 1; isspace((unsigned char)*cp); cp++) {
2984 if (strncmp(cp, "include", 7) == 0 ||
2985 ((cp[0] == 's' || cp[0] == '-') &&
2986 strncmp(&cp[1], "include", 7) == 0)) {
2990 if (strncmp(cp, "undef", 5) == 0) {
2992 for (cp += 5; isspace((unsigned char) *cp); cp++)
2994 for (cp2 = cp; !isspace((unsigned char) *cp2) &&
2995 (*cp2 != '\0'); cp2++)
2998 Var_Delete(cp, VAR_GLOBAL);
3000 } else if (strncmp(cp, "export", 6) == 0) {
3001 for (cp += 6; isspace((unsigned char) *cp); cp++)
3005 } else if (strncmp(cp, "unexport", 8) == 0) {
3008 } else if (strncmp(cp, "info", 4) == 0 ||
3009 strncmp(cp, "error", 5) == 0 ||
3010 strncmp(cp, "warning", 7) == 0) {
3011 if (ParseMessage(cp))
3016 if (*line == '\t') {
3018 * If a line starts with a tab, it can only hope to be
3019 * a creation command.
3023 for (; isspace ((unsigned char)*cp); cp++) {
3028 Parse_Error(PARSE_FATAL,
3029 "Unassociated shell command \"%s\"",
3032 * So long as it's not a blank line and we're actually
3033 * in a dependency spec, add the command to the list of
3034 * commands of all targets in the dependency spec
3037 cp = bmake_strdup(cp);
3038 Lst_ForEach(targets, ParseAddCmd, cp);
3040 Lst_AtEnd(targCmds, cp);
3048 if (((strncmp(line, "include", 7) == 0 &&
3049 isspace((unsigned char) line[7])) ||
3050 ((line[0] == 's' || line[0] == '-') &&
3051 strncmp(&line[1], "include", 7) == 0 &&
3052 isspace((unsigned char) line[8]))) &&
3053 strchr(line, ':') == NULL) {
3055 * It's an S3/S5-style "include".
3057 ParseTraditionalInclude(line);
3062 if (strncmp(line, "export", 6) == 0 &&
3063 isspace((unsigned char) line[6]) &&
3064 strchr(line, ':') == NULL) {
3066 * It's a Gmake "export".
3068 ParseGmakeExport(line);
3072 if (Parse_IsVar(line)) {
3074 Parse_DoVar(line, VAR_GLOBAL);
3080 * To make life easier on novices, if the line is indented we
3081 * first make sure the line has a dependency operator in it.
3082 * If it doesn't have an operator and we're in a dependency
3083 * line's script, we assume it's actually a shell command
3084 * and add it to the current list of targets.
3087 if (isspace((unsigned char) line[0])) {
3088 while ((*cp != '\0') && isspace((unsigned char) *cp))
3090 while (*cp && (ParseIsEscaped(line, cp) ||
3091 (*cp != ':') && (*cp != '!'))) {
3096 Parse_Error(PARSE_WARNING,
3097 "Shell command needs a leading tab");
3106 * For some reason - probably to make the parser impossible -
3107 * a ';' can be used to separate commands from dependencies.
3108 * Attempt to avoid ';' inside substitution patterns.
3113 for (cp = line; *cp != 0; cp++) {
3114 if (*cp == '\\' && cp[1] != 0) {
3119 (cp[1] == '(' || cp[1] == '{')) {
3124 if (*cp == ')' || *cp == '}') {
3128 } else if (*cp == ';') {
3134 /* Terminate the dependency list at the ';' */
3140 * We now know it's a dependency line so it needs to have all
3141 * variables expanded before being parsed. Tell the variable
3142 * module to complain if some variable is undefined...
3144 line = Var_Subst(NULL, line, VAR_CMD, TRUE);
3147 * Need a non-circular list for the target nodes
3150 Lst_Destroy(targets, NULL);
3152 targets = Lst_Init(FALSE);
3155 ParseDoDependency(line);
3158 /* If there were commands after a ';', add them now */
3164 * Reached EOF, but it may be just EOF of an include file...
3166 } while (ParseEOF() == CONTINUE);
3169 (void)fflush(stdout);
3170 (void)fprintf(stderr,
3171 "%s: Fatal errors encountered -- cannot continue",
3173 PrintOnError(NULL, NULL);
3179 *---------------------------------------------------------------------
3181 * initialize the parsing module
3187 * the parseIncPath list is initialized...
3188 *---------------------------------------------------------------------
3194 parseIncPath = Lst_Init(FALSE);
3195 sysIncPath = Lst_Init(FALSE);
3196 defIncPath = Lst_Init(FALSE);
3197 includes = Lst_Init(FALSE);
3199 targCmds = Lst_Init(FALSE);
3207 Lst_Destroy(targCmds, (FreeProc *)free);
3209 Lst_Destroy(targets, NULL);
3210 Lst_Destroy(defIncPath, Dir_Destroy);
3211 Lst_Destroy(sysIncPath, Dir_Destroy);
3212 Lst_Destroy(parseIncPath, Dir_Destroy);
3213 Lst_Destroy(includes, NULL); /* Should be empty now */
3219 *-----------------------------------------------------------------------
3221 * Return a Lst of the main target to create for main()'s sake. If
3222 * no such target exists, we Punt with an obnoxious error message.
3225 * A Lst of the single node to create.
3230 *-----------------------------------------------------------------------
3233 Parse_MainName(void)
3235 Lst mainList; /* result list */
3237 mainList = Lst_Init(FALSE);
3239 if (mainNode == NULL) {
3240 Punt("no target to make.");
3242 } else if (mainNode->type & OP_DOUBLEDEP) {
3243 (void)Lst_AtEnd(mainList, mainNode);
3244 Lst_Concat(mainList, mainNode->cohorts, LST_CONCNEW);
3247 (void)Lst_AtEnd(mainList, mainNode);
3248 Var_Append(".TARGETS", mainNode->name, VAR_GLOBAL);
3253 *-----------------------------------------------------------------------
3255 * Add the filename and lineno to the GNode so that we remember
3256 * where it was first defined.
3261 *-----------------------------------------------------------------------
3264 ParseMark(GNode *gn)
3266 gn->fname = curFile->fname;
3267 gn->lineno = curFile->lineno;