2 * Copyright (c) 1988, 1989, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1989 by Berkeley Softworks
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. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * @(#)main.c 8.3 (Berkeley) 3/19/94
43 static char copyright[] =
44 "@(#) Copyright (c) 1988, 1989, 1990, 1993\n\
45 The Regents of the University of California. All rights reserved.\n";
48 #include <sys/cdefs.h>
49 __FBSDID("$FreeBSD$");
53 * The main file for this entire program. Exit routines etc
56 * Utility functions defined in this file:
58 * Takes a line of arguments, breaks them and
59 * treats them as if they were given when first
60 * invoked. Used by the parse module to implement
64 #include <sys/param.h>
66 #include <sys/sysctl.h>
68 #include <sys/queue.h>
69 #include <sys/resource.h>
70 #include <sys/utsname.h>
87 #include "pathnames.h"
95 extern char **environ; /* XXX what header declares this variable? */
97 #define WANT_ENV_MKLVL 1
98 #define MKLVL_MAXVAL 500
99 #define MKLVL_ENVVAR "__MKLVL__"
101 /* ordered list of makefiles to read */
102 static Lst makefiles = Lst_Initializer(makefiles);
104 /* ordered list of source makefiles */
105 static Lst source_makefiles = Lst_Initializer(source_makefiles);
107 /* list of variables to print */
108 static Lst variables = Lst_Initializer(variables);
110 static Boolean expandVars; /* fully expand printed variables */
111 static Boolean noBuiltins; /* -r flag */
112 static Boolean forceJobs; /* -j argument given */
113 static char *curdir; /* startup directory */
114 static char *objdir; /* where we chdir'ed to */
115 static char **save_argv; /* saved argv */
116 static char *save_makeflags;/* saved MAKEFLAGS */
118 /* (-E) vars to override from env */
119 Lst envFirstVars = Lst_Initializer(envFirstVars);
121 /* Targets to be made */
122 Lst create = Lst_Initializer(create);
124 Boolean allPrecious; /* .PRECIOUS given on line by itself */
125 Boolean is_posix; /* .POSIX target seen */
126 Boolean mfAutoDeps; /* .MAKEFILEDEPS target seen */
127 Boolean beSilent; /* -s flag */
128 Boolean beVerbose; /* -v flag */
129 Boolean compatMake; /* -B argument */
130 int debug; /* -d flag */
131 Boolean ignoreErrors; /* -i flag */
132 int jobLimit; /* -j argument */
133 Boolean jobsRunning; /* TRUE if the jobs might be running */
134 Boolean keepgoing; /* -k flag */
135 Boolean noExecute; /* -n flag */
136 Boolean queryFlag; /* -q flag */
137 Boolean touchFlag; /* -t flag */
138 Boolean usePipes; /* !-P flag */
139 uint32_t warn_cmd; /* command line warning flags */
140 uint32_t warn_flags; /* actual warning flags */
141 uint32_t warn_nocmd; /* command line no-warning flags */
143 time_t now; /* Time at start of make */
144 struct GNode *DEFAULT; /* .DEFAULT node */
147 * Exit with usage message.
153 "usage: make [-BPSXeiknqrstv] [-C directory] [-D variable]\n"
154 "\t[-d flags] [-E variable] [-f makefile] [-I directory]\n"
155 "\t[-j max_jobs] [-m directory] [-V variable]\n"
156 "\t[variable=value] [target ...]\n");
162 * Append a flag with an optional argument to MAKEFLAGS and MFLAGS
165 MFLAGS_append(const char *flag, char *arg)
169 Var_Append(".MAKEFLAGS", flag, VAR_GLOBAL);
171 str = MAKEFLAGS_quote(arg);
172 Var_Append(".MAKEFLAGS", str, VAR_GLOBAL);
176 Var_Append("MFLAGS", flag, VAR_GLOBAL);
178 str = MAKEFLAGS_quote(arg);
179 Var_Append("MFLAGS", str, VAR_GLOBAL);
187 * Handle argument to warning option.
190 Main_ParseWarn(const char *arg, int iscmd)
194 static const struct {
198 { "dirsyntax", WARN_DIRSYNTAX },
203 if (arg[0] == 'n' && arg[1] == 'o') {
208 for (i = 0; options[i].option != NULL; i++)
209 if (strcmp(arg, options[i].option) == 0)
212 if (options[i].option == NULL)
218 warn_cmd |= options[i].flag;
219 warn_nocmd &= ~options[i].flag;
220 warn_flags |= options[i].flag;
222 warn_nocmd |= options[i].flag;
223 warn_cmd &= ~options[i].flag;
224 warn_flags &= ~options[i].flag;
228 warn_flags |= (options[i].flag & ~warn_nocmd);
230 warn_flags &= ~(options[i].flag | warn_cmd);
237 * Open and parse the given makefile.
240 * TRUE if ok. FALSE if couldn't open file.
243 ReadMakefile(const char p[])
245 char *fname, *fnamesave; /* makefile to read */
247 char *name, path[MAXPATHLEN];
251 /* XXX - remove this once constification is done */
252 fnamesave = fname = estrdup(p);
254 if (!strcmp(fname, "-")) {
255 Parse_File("(stdin)", stdin);
256 Var_SetGlobal("MAKEFILE", "");
258 setMAKEFILE = strcmp(fname, ".depend");
260 /* if we've chdir'd, rebuild the path name */
261 if (curdir != objdir && *fname != '/') {
262 snprintf(path, MAXPATHLEN, "%s/%s", curdir, fname);
264 * XXX The realpath stuff breaks relative includes
265 * XXX in some cases. The problem likely is in
266 * XXX parse.c where it does special things in
267 * XXX ParseDoInclude if the file is relateive
268 * XXX or absolute and not a system file. There
269 * XXX it assumes that if the current file that's
270 * XXX being included is absolute, that any files
271 * XXX that it includes shouldn't do the -I path
272 * XXX stuff, which is inconsistant with historical
273 * XXX behavior. However, I can't pentrate the mists
274 * XXX further, so I'm putting this workaround in
275 * XXX here until such time as the underlying bug
278 #if THIS_BREAKS_THINGS
279 if (realpath(path, path) != NULL &&
280 (stream = fopen(path, "r")) != NULL) {
285 } else if (realpath(fname, path) != NULL) {
288 if ((stream = fopen(fname, "r")) != NULL)
292 if ((stream = fopen(path, "r")) != NULL) {
299 if ((stream = fopen(fname, "r")) != NULL)
303 /* look in -I and system include directories. */
304 name = Path_FindFile(fname, &parseIncPath);
306 name = Path_FindFile(fname, &sysIncPath);
307 if (!name || !(stream = fopen(name, "r"))) {
311 MAKEFILE = fname = name;
313 * set the MAKEFILE variable desired by System V fans -- the
314 * placement of the setting here means it gets set to the last
315 * makefile specified, as it is set by SysV make.
319 Var_SetGlobal("MAKEFILE", MAKEFILE);
320 Parse_File(fname, stream);
327 * Open and parse the given makefile.
328 * If open is successful add it to the list of makefiles.
331 * TRUE if ok. FALSE if couldn't open file.
334 TryReadMakefile(const char p[])
337 LstNode *last = Lst_Last(&source_makefiles);
339 if (!ReadMakefile(p))
344 LstNode *first = Lst_First(&source_makefiles);
345 Lst_Insert(&source_makefiles, first, data);
347 Lst_Append(&source_makefiles, last, estrdup(p));
353 * Parse a given argument vector. Called from main() and from
354 * Main_ParseArgLine() when the .MAKEFLAGS target is used.
356 * XXX: Deal with command line overriding .MAKEFLAGS in makefile
359 * Various global and local flags will be set depending on the flags
363 MainParseArgs(int argc, char **argv)
366 Boolean found_dd = FALSE;
369 optind = 1; /* since we're called more than once */
371 #define OPTFLAGS "ABC:D:E:I:PSV:Xd:ef:ij:km:nqrstvx:"
373 if ((optind < argc) && strcmp(argv[optind], "--") == 0) {
376 if ((c = getopt(argc, argv, OPTFLAGS)) == -1) {
383 MFLAGS_append("-A", NULL);
386 if (chdir(optarg) == -1)
387 err(1, "chdir %s", optarg);
390 Var_SetGlobal(optarg, "1");
391 MFLAGS_append("-D", optarg);
394 Parse_AddIncludeDir(optarg);
395 MFLAGS_append("-I", optarg);
398 Lst_AtEnd(&variables, estrdup(optarg));
399 MFLAGS_append("-V", optarg);
406 MFLAGS_append("-B", NULL);
407 unsetenv("MAKE_JOBS_FIFO");
411 MFLAGS_append("-P", NULL);
415 MFLAGS_append("-S", NULL);
418 char *modules = optarg;
420 for (; *modules; ++modules)
438 if (modules[1] == '1') {
439 debug |= DEBUG_GRAPH1;
442 else if (modules[1] == '2') {
443 debug |= DEBUG_GRAPH2;
466 warnx("illegal argument to d option "
470 MFLAGS_append("-d", optarg);
474 Lst_AtEnd(&envFirstVars, estrdup(optarg));
475 MFLAGS_append("-E", optarg);
478 checkEnvFirst = TRUE;
479 MFLAGS_append("-e", NULL);
482 Lst_AtEnd(&makefiles, estrdup(optarg));
486 MFLAGS_append("-i", NULL);
492 jobLimit = strtol(optarg, &endptr, 10);
493 if (jobLimit <= 0 || *endptr != '\0') {
494 warnx("illegal number, -j argument -- %s",
498 MFLAGS_append("-j", optarg);
503 MFLAGS_append("-k", NULL);
506 Path_AddDir(&sysIncPath, optarg);
507 MFLAGS_append("-m", optarg);
511 MFLAGS_append("-n", NULL);
515 /* Kind of nonsensical, wot? */
516 MFLAGS_append("-q", NULL);
520 MFLAGS_append("-r", NULL);
524 MFLAGS_append("-s", NULL);
528 MFLAGS_append("-t", NULL);
532 MFLAGS_append("-v", NULL);
535 if (Main_ParseWarn(optarg, 1) != -1)
536 MFLAGS_append("-x", optarg);
550 * Parse the rest of the arguments.
551 * o Check for variable assignments and perform them if so.
552 * o Check for more flags and restart getopt if so.
553 * o Anything else is taken to be a target and added
554 * to the end of the "create" list.
556 for (; *argv != NULL; ++argv, --argc) {
557 if (Parse_IsVar(*argv)) {
558 char *ptr = MAKEFLAGS_quote(*argv);
559 char *v = estrdup(*argv);
561 Var_Append(".MAKEFLAGS", ptr, VAR_GLOBAL);
562 Parse_DoVar(v, VAR_CMD);
566 } else if ((*argv)[0] == '-') {
567 if ((*argv)[1] == '\0') {
569 * (*argv) is a single dash, so we
572 } else if (found_dd) {
574 * Double dash has been found, ignore
575 * any more options. But what do we do
576 * with it? For now treat it like a target.
578 Lst_AtEnd(&create, estrdup(*argv));
581 * (*argv) is a -flag, so backup argv and
582 * argc. getopt() expects options to start
583 * in the 2nd position.
590 } else if ((*argv)[0] == '\0') {
591 Punt("illegal (null) argument.");
594 Lst_AtEnd(&create, estrdup(*argv));
601 * Used by the parse module when a .MFLAGS or .MAKEFLAGS target
602 * is encountered and by main() when reading the .MAKEFLAGS envariable.
603 * Takes a line of arguments and breaks it into its
604 * component words and passes those words and the number of them to the
605 * MainParseArgs function.
606 * The line should have all its leading whitespace removed.
609 * Only those that come from the various arguments.
612 Main_ParseArgLine(char *line, int mflags)
618 for (; *line == ' '; ++line)
624 MAKEFLAGS_break(&aa, line);
626 brk_string(&aa, line, TRUE);
628 MainParseArgs(aa.argc, aa.argv);
633 chdir_verify_path(const char *path, char *obpath)
637 if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) {
638 if (chdir(path) == -1 || getcwd(obpath, MAXPATHLEN) == NULL) {
639 warn("warning: %s", path);
649 * In lieu of a good way to prevent every possible looping in make(1), stop
650 * there from being more than MKLVL_MAXVAL processes forked by make(1), to
651 * prevent a forkbomb from happening, in a dumb and mechanical way.
654 * Creates or modifies enviornment variable MKLVL_ENVVAR via setenv().
657 check_make_level(void)
659 #ifdef WANT_ENV_MKLVL
660 char *value = getenv(MKLVL_ENVVAR);
661 int level = (value == NULL) ? 0 : atoi(value);
664 errc(2, EAGAIN, "Invalid value for recursion level (%d).",
666 } else if (level > MKLVL_MAXVAL) {
667 errc(2, EAGAIN, "Max recursion level (%d) exceeded.",
671 sprintf(new_value, "%d", level + 1);
672 setenv(MKLVL_ENVVAR, new_value, 1);
674 #endif /* WANT_ENV_MKLVL */
678 * Main_AddSourceMakefile
679 * Add a file to the list of source makefiles
682 Main_AddSourceMakefile(const char *name)
685 Lst_AtEnd(&source_makefiles, estrdup(name));
690 * Remake all the makefiles
693 Remake_Makefiles(void)
699 Compat_InstallSignalHandlers();
700 if (curdir != objdir) {
701 if (chdir(curdir) < 0)
702 Fatal("Failed to change directory to %s.", curdir);
705 LST_FOREACH(ln, &source_makefiles) {
708 const char *name = Lst_Datum(ln);
709 Boolean saveTouchFlag = touchFlag;
710 Boolean saveQueryFlag = queryFlag;
711 Boolean saveNoExecute = noExecute;
717 gn = Targ_FindNode(name, TARG_CREATE);
718 DEBUGF(MAKE, ("Checking %s...", gn->name));
722 * ! dependencies as well as
723 * dependencies with .FORCE, .EXEC and .PHONY attributes
724 * are skipped to prevent infinite loops
726 if (gn->type & (OP_FORCE | OP_EXEC | OP_PHONY)) {
727 DEBUGF(MAKE, ("skipping (force, exec or phony).\n",
733 * Skip :: targets that have commands and no children
734 * because such targets are always out-of-date
736 if ((gn->type & OP_DOUBLEDEP) &&
737 !Lst_IsEmpty(&gn->commands) &&
738 Lst_IsEmpty(&gn->children)) {
739 DEBUGF(MAKE, ("skipping (doubledep, no sources "
740 "and has commands).\n"));
745 * Skip targets without sources and without commands
747 if (Lst_IsEmpty(&gn->commands) &&
748 Lst_IsEmpty(&gn->children)) {
750 ("skipping (no sources and no commands).\n"));
754 DEBUGF(MAKE, ("\n"));
757 * -t, -q and -n has no effect unless the makefile is
758 * specified as one of the targets explicitly in the
761 LST_FOREACH(ln2, &create) {
762 if (!strcmp(gn->name, Lst_Datum(ln2))) {
763 /* found as a target */
774 * Check and remake the makefile
776 mtime = Dir_MTime(gn);
780 * Restore -t, -q and -n behaviour
782 touchFlag = saveTouchFlag;
783 queryFlag = saveQueryFlag;
784 noExecute = saveNoExecute;
787 * Compat_Make will leave the 'made' field of gn
788 * in one of the following states:
789 * UPTODATE gn was already up-to-date
790 * MADE gn was recreated successfully
791 * ERROR An error occurred while gn was being created
792 * ABORTED gn was not remade because one of its inferiors
793 * could not be made due to errors.
795 if (gn->made == MADE) {
796 if (mtime != Dir_MTime(gn)) {
798 ("%s updated (%d -> %d).\n",
799 gn->name, mtime, gn->mtime));
803 ("%s not updated: skipping restart.\n",
806 } else if (gn->made == ERROR)
808 else if (gn->made == ABORTED) {
809 printf("`%s' not remade because of errors.\n",
812 } else if (gn->made == UPTODATE) {
816 Lst_EnQueue(&examine, gn);
817 while (!Lst_IsEmpty(&examine)) {
819 GNode *egn = Lst_DeQueue(&examine);
822 LST_FOREACH(eln, &egn->children) {
823 GNode *cgn = Lst_Datum(eln);
825 Lst_EnQueue(&examine, cgn);
832 Fatal("Failed to remake Makefiles.");
833 if (remade_cnt > 0) {
834 DEBUGF(MAKE, ("Restarting `%s'.\n", save_argv[0]));
837 * Some of makefiles were remade -- restart from clean state
839 if (save_makeflags != NULL)
840 setenv("MAKEFLAGS", save_makeflags, 1);
842 unsetenv("MAKEFLAGS");
843 if (execvp(save_argv[0], save_argv) < 0) {
844 Fatal("Can't restart `%s': %s.",
845 save_argv[0], strerror(errno));
849 if (curdir != objdir) {
850 if (chdir(objdir) < 0)
851 Fatal("Failed to change directory to %s.", objdir);
857 * The main function, for obvious reasons. Initializes variables
858 * and a few modules, then parses the arguments give it in the
859 * environment and on the command line. Reads the system makefile
860 * followed by either Makefile, makefile or the file given by the
861 * -f argument. Sets the .MAKEFLAGS PMake variable based on all the
862 * flags it has received by then uses either the Make or the Compat
863 * module to create the initial list of targets.
866 * If -q was given, exits -1 if anything was out-of-date. Else it exits
870 * The program exits when done. Targets are created. etc. etc. etc.
873 main(int argc, char **argv)
876 const char *machine_arch;
877 const char *machine_cpu;
878 Boolean outOfDate = TRUE; /* FALSE if all targets up to date */
882 char mdpath[MAXPATHLEN];
883 char obpath[MAXPATHLEN];
884 char cdpath[MAXPATHLEN];
885 char *cp = NULL, *start;
888 save_makeflags = getenv("MAKEFLAGS");
889 if (save_makeflags != NULL)
890 save_makeflags = estrdup(save_makeflags);
893 * Initialize file global variables.
896 noBuiltins = FALSE; /* Read the built-in rules */
897 forceJobs = FALSE; /* No -j flag */
901 * Initialize program global variables.
903 beSilent = FALSE; /* Print commands as executed */
904 ignoreErrors = FALSE; /* Pay attention to non-zero returns */
905 noExecute = FALSE; /* Execute all commands */
906 keepgoing = FALSE; /* Stop on error */
907 allPrecious = FALSE; /* Remove targets when interrupted */
908 queryFlag = FALSE; /* This is not just a check-run */
909 touchFlag = FALSE; /* Actually update targets */
910 usePipes = TRUE; /* Catch child output in pipes */
911 debug = 0; /* No debug verbosity, please. */
914 jobLimit = DEFMAXJOBS;
915 compatMake = FALSE; /* No compat mode */
921 * get rid of resource limit on file descriptors
925 if (getrlimit(RLIMIT_NOFILE, &rl) == -1) {
928 rl.rlim_cur = rl.rlim_max;
929 if (setrlimit(RLIMIT_NOFILE, &rl) == -1) {
936 * Prior to 7.0, FreeBSD/pc98 kernel used to set the
937 * utsname.machine to "i386", and MACHINE was defined as
938 * "i386", so it could not be distinguished from FreeBSD/i386.
939 * Therefore, we had to check machine.ispc98 and adjust the
940 * MACHINE variable. NOTE: The code is still here to be able
941 * to compile new make binary on old FreeBSD/pc98 systems, and
942 * have the MACHINE variable set properly.
944 if ((machine = getenv("MACHINE")) == NULL) {
948 len = sizeof(ispc98);
949 if (!sysctlbyname("machdep.ispc98", &ispc98, &len, NULL, 0)) {
956 * Get the name of this type of MACHINE from utsname
957 * so we can share an executable for similar machines.
958 * (i.e. m68k: amiga hp300, mac68k, sun3, ...)
960 * Note that both MACHINE and MACHINE_ARCH are decided at
963 if (machine == NULL) {
964 static struct utsname utsname;
966 if (uname(&utsname) == -1)
968 machine = utsname.machine;
971 if ((machine_arch = getenv("MACHINE_ARCH")) == NULL) {
973 machine_arch = MACHINE_ARCH;
975 machine_arch = "unknown";
980 * Set machine_cpu to the minumum supported CPU revision based
981 * on the target architecture, if not already set.
983 if ((machine_cpu = getenv("MACHINE_CPU")) == NULL) {
984 if (!strcmp(machine_arch, "i386"))
985 machine_cpu = "i386";
986 else if (!strcmp(machine_arch, "alpha"))
989 machine_cpu = "unknown";
993 * Initialize the parsing, directory and variable modules to prepare
994 * for the reading of inclusion paths and variable settings on the
999 Dir_Init(); /* Initialize directory structures so -I flags
1000 * can be processed correctly */
1001 Var_Init(environ); /* As well as the lists of variables for
1002 * parsing arguments */
1005 * Initialize the Shell so that we have a shell for != assignments
1006 * on the command line.
1011 * Initialize various variables.
1012 * MAKE also gets this name, for compatibility
1013 * .MAKEFLAGS gets set to the empty string just in case.
1014 * MFLAGS also gets initialized empty, for compatibility.
1016 Var_SetGlobal("MAKE", argv[0]);
1017 Var_SetGlobal(".MAKEFLAGS", "");
1018 Var_SetGlobal("MFLAGS", "");
1019 Var_SetGlobal("MACHINE", machine);
1020 Var_SetGlobal("MACHINE_ARCH", machine_arch);
1021 Var_SetGlobal("MACHINE_CPU", machine_cpu);
1023 Var_SetGlobal("MAKE_VERSION", MAKE_VERSION);
1027 * First snag things out of the MAKEFLAGS environment
1028 * variable. Then parse the command line arguments.
1030 Main_ParseArgLine(getenv("MAKEFLAGS"), 1);
1032 MainParseArgs(argc, argv);
1035 * Find where we are...
1037 if (getcwd(curdir, MAXPATHLEN) == NULL)
1043 if (stat(curdir, &sa) == -1)
1044 err(2, "%s", curdir);
1048 * The object directory location is determined using the
1049 * following order of preference:
1051 * 1. MAKEOBJDIRPREFIX`cwd`
1053 * 3. PATH_OBJDIR.${MACHINE}
1055 * 5. PATH_OBJDIRPREFIX`cwd`
1057 * If one of the first two fails, use the current directory.
1058 * If the remaining three all fail, use the current directory.
1060 * Once things are initted,
1061 * have to add the original directory to the search path,
1062 * and modify the paths for the Makefiles apropriately. The
1063 * current directory is also placed as a variable for make scripts.
1065 if (!(pathp = getenv("MAKEOBJDIRPREFIX"))) {
1066 if (!(path = getenv("MAKEOBJDIR"))) {
1068 pathp = PATH_OBJDIRPREFIX;
1069 snprintf(mdpath, MAXPATHLEN, "%s.%s", path, machine);
1070 if (!(objdir = chdir_verify_path(mdpath, obpath)))
1071 if (!(objdir=chdir_verify_path(path, obpath))) {
1072 snprintf(mdpath, MAXPATHLEN,
1073 "%s%s", pathp, curdir);
1074 if (!(objdir=chdir_verify_path(mdpath,
1079 else if (!(objdir = chdir_verify_path(path, obpath)))
1083 snprintf(mdpath, MAXPATHLEN, "%s%s", pathp, curdir);
1084 if (!(objdir = chdir_verify_path(mdpath, obpath)))
1087 Dir_InitDot(); /* Initialize the "." directory */
1088 if (objdir != curdir)
1089 Path_AddDir(&dirSearchPath, curdir);
1090 Var_SetGlobal(".ST_EXPORTVAR", "YES");
1091 Var_SetGlobal(".CURDIR", curdir);
1092 Var_SetGlobal(".OBJDIR", objdir);
1094 if (getenv("MAKE_JOBS_FIFO") != NULL)
1097 * Be compatible if user did not specify -j and did not explicitly
1098 * turned compatibility on
1100 if (!compatMake && !forceJobs)
1104 * Initialize target and suffix modules in preparation for
1105 * parsing the makefile(s)
1114 * Set up the .TARGETS variable to contain the list of targets to be
1115 * created. If none specified, make the variable empty -- the parser
1116 * will fill the thing in with the default or .MAIN target.
1118 if (Lst_IsEmpty(&create)) {
1119 Var_SetGlobal(".TARGETS", "");
1123 for (ln = Lst_First(&create); ln != NULL; ln = Lst_Succ(ln)) {
1124 char *name = Lst_Datum(ln);
1126 Var_Append(".TARGETS", name, VAR_GLOBAL);
1132 * If no user-supplied system path was given (through the -m option)
1133 * add the directories from the DEFSYSPATH (more than one may be given
1134 * as dir1:...:dirn) to the system include path.
1136 if (TAILQ_EMPTY(&sysIncPath)) {
1137 char syspath[] = PATH_DEFSYSPATH;
1139 for (start = syspath; *start != '\0'; start = cp) {
1140 for (cp = start; *cp != '\0' && *cp != ':'; cp++)
1143 Path_AddDir(&sysIncPath, start);
1146 Path_AddDir(&sysIncPath, start);
1152 * Read in the built-in rules first, followed by the specified
1153 * makefile, if it was (makefile != (char *) NULL), or the default
1154 * Makefile and makefile, in that order, if it wasn't.
1157 /* Path of sys.mk */
1158 Lst sysMkPath = Lst_Initializer(sysMkPath);
1160 char defsysmk[] = PATH_DEFSYSMK;
1162 Path_Expand(defsysmk, &sysIncPath, &sysMkPath);
1163 if (Lst_IsEmpty(&sysMkPath))
1164 Fatal("make: no system rules (%s).", PATH_DEFSYSMK);
1165 LST_FOREACH(ln, &sysMkPath) {
1166 if (!ReadMakefile(Lst_Datum(ln)))
1170 Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
1171 Lst_Destroy(&sysMkPath, free);
1174 if (!Lst_IsEmpty(&makefiles)) {
1177 LST_FOREACH(ln, &makefiles) {
1178 if (!TryReadMakefile(Lst_Datum(ln)))
1182 Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
1183 } else if (!TryReadMakefile("BSDmakefile"))
1184 if (!TryReadMakefile("makefile"))
1185 TryReadMakefile("Makefile");
1187 ReadMakefile(".depend");
1189 /* Install all the flags into the MAKEFLAGS envariable. */
1190 if (((p = Var_Value(".MAKEFLAGS", VAR_GLOBAL)) != NULL) && *p)
1191 setenv("MAKEFLAGS", p, 1);
1193 setenv("MAKEFLAGS", "", 1);
1196 * For compatibility, look at the directories in the VPATH variable
1197 * and add them to the search path, if the variable is defined. The
1198 * variable's value is in the same format as the PATH envariable, i.e.
1199 * <directory>:<directory>:<directory>...
1201 if (Var_Exists("VPATH", VAR_CMD)) {
1203 * GCC stores string constants in read-only memory, but
1204 * Var_Subst will want to write this thing, so store it
1207 static char VPATH[] = "${VPATH}";
1213 buf = Var_Subst(VPATH, VAR_CMD, FALSE);
1215 vpath = Buf_Data(buf);
1217 /* skip to end of directory */
1218 for (ptr = vpath; *ptr != ':' && *ptr != '\0'; ptr++)
1221 /* Save terminator character so know when to stop */
1225 /* Add directory to search path */
1226 Path_AddDir(&dirSearchPath, vpath);
1229 } while (savec != '\0');
1231 Buf_Destroy(buf, TRUE);
1235 * Now that all search paths have been read for suffixes et al, it's
1236 * time to add the default search path to their lists...
1240 /* print the initial graph, if the user requested it */
1244 /* print the values of any variables requested by the user */
1245 if (Lst_IsEmpty(&variables)) {
1247 * Since the user has not requested that any variables
1248 * be printed, we can build targets.
1250 * Have read the entire graph and need to make a list of targets
1251 * to create. If none was given on the command line, we consult
1252 * the parsing module to find the main target(s) to create.
1254 Lst targs = Lst_Initializer(targs);
1256 if (!is_posix && mfAutoDeps) {
1258 * Check if any of the makefiles are out-of-date.
1263 if (Lst_IsEmpty(&create))
1264 Parse_MainName(&targs);
1266 Targ_FindList(&targs, &create, TARG_CREATE);
1270 * Compat_Init will take care of creating
1271 * all the targets as well as initializing
1278 * Initialize job module before traversing
1279 * the graph, now that any .BEGIN and .END
1280 * targets have been read. This is done
1281 * only if the -q flag wasn't given (to
1282 * prevent the .BEGIN from being executed
1290 /* Traverse the graph, checking on all the targets */
1291 outOfDate = Make_Run(&targs);
1293 Lst_Destroy(&targs, NOFREE);
1296 Var_Print(&variables, expandVars);
1299 Lst_Destroy(&variables, free);
1300 Lst_Destroy(&makefiles, free);
1301 Lst_Destroy(&source_makefiles, free);
1302 Lst_Destroy(&create, free);
1304 /* print the graph now it's been processed if the user requested it */
1308 if (queryFlag && outOfDate)