1 /* $NetBSD: main.c,v 1.265 2017/05/10 22:26:14 sjg 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: main.c,v 1.265 2017/05/10 22:26:14 sjg Exp $";
74 #include <sys/cdefs.h>
76 __COPYRIGHT("@(#) Copyright (c) 1988, 1989, 1990, 1993\
77 The Regents of the University of California. All rights reserved.");
82 static char sccsid
[] = "@(#)main.c 8.3 (Berkeley) 3/19/94";
84 __RCSID("$NetBSD: main.c,v 1.265 2017/05/10 22:26:14 sjg Exp $");
91 * The main file for this entire program. Exit routines etc
94 * Utility functions defined in this file:
95 * Main_ParseArgLine Takes a line of arguments, breaks them and
96 * treats them as if they were given when first
97 * invoked. Used by the parse module to implement
100 * Error Print a tagged error message. The global
101 * MAKE variable must have been defined. This
102 * takes a format string and optional arguments
105 * Fatal Print an error message and exit. Also takes
106 * a format string and arguments for it.
108 * Punt Aborts all jobs and exits with a message. Also
109 * takes a format string and arguments for it.
111 * Finish Finish things up by printing the number of
112 * errors which occurred, as passed to it, and
116 #include <sys/types.h>
117 #include <sys/time.h>
118 #include <sys/param.h>
119 #include <sys/resource.h>
120 #include <sys/stat.h>
121 #if defined(MAKE_NATIVE) && defined(HAVE_SYSCTL)
122 #include <sys/sysctl.h>
124 #include <sys/utsname.h>
139 #include "pathnames.h"
147 #define DEFMAXLOCAL DEFMAXJOBS
148 #endif /* DEFMAXLOCAL */
151 # define __arraycount(__x) (sizeof(__x) / sizeof(__x[0]))
154 Lst create
; /* Targets to be made */
155 time_t now
; /* Time at start of make */
156 GNode
*DEFAULT
; /* .DEFAULT node */
157 Boolean allPrecious
; /* .PRECIOUS given on line by itself */
158 Boolean deleteOnError
; /* .DELETE_ON_ERROR: set */
160 static Boolean noBuiltins
; /* -r flag */
161 static Lst makefiles
; /* ordered list of makefiles to read */
162 static Boolean printVars
; /* print value of one or more vars */
163 static Lst variables
; /* list of variables to print */
164 int maxJobs
; /* -j argument */
165 static int maxJobTokens
; /* -j argument */
166 Boolean compatMake
; /* -B argument */
167 int debug
; /* -d argument */
168 Boolean debugVflag
; /* -dV */
169 Boolean noExecute
; /* -n flag */
170 Boolean noRecursiveExecute
; /* -N flag */
171 Boolean keepgoing
; /* -k flag */
172 Boolean queryFlag
; /* -q flag */
173 Boolean touchFlag
; /* -t flag */
174 Boolean enterFlag
; /* -w flag */
175 Boolean enterFlagObj
; /* -w and objdir != srcdir */
176 Boolean ignoreErrors
; /* -i flag */
177 Boolean beSilent
; /* -s flag */
178 Boolean oldVars
; /* variable substitution style */
179 Boolean checkEnvFirst
; /* -e flag */
180 Boolean parseWarnFatal
; /* -W flag */
181 Boolean jobServer
; /* -J flag */
182 static int jp_0
= -1, jp_1
= -1; /* ends of parent job pipe */
183 Boolean varNoExportEnv
; /* -X flag */
184 Boolean doing_depend
; /* Set while reading .depend */
185 static Boolean jobsRunning
; /* TRUE if the jobs might be running */
186 static const char * tracefile
;
187 static void MainParseArgs(int, char **);
188 static int ReadMakefile(const void *, const void *);
189 static void usage(void) MAKE_ATTR_DEAD
;
190 static void purge_cached_realpaths(void);
192 static Boolean ignorePWD
; /* if we use -C, PWD is meaningless */
193 static char objdir
[MAXPATHLEN
+ 1]; /* where we chdir'ed to */
194 char curdir
[MAXPATHLEN
+ 1]; /* Startup directory */
195 char *progname
; /* the program name */
196 char *makeDependfile
;
200 Boolean forceJobs
= FALSE
;
203 * On some systems MACHINE is defined as something other than
208 # define MACHINE FORCE_MACHINE
211 extern Lst parseIncPath
;
214 * For compatibility with the POSIX version of MAKEFLAGS that includes
215 * all the options with out -, convert flags to -f -l -a -g -s.
218 explode(const char *flags
)
227 for (f
= flags
; *f
; f
++)
228 if (!isalpha((unsigned char)*f
))
232 return bmake_strdup(flags
);
235 st
= nf
= bmake_malloc(len
* 3 + 1);
246 parse_debug_options(const char *argvalue
)
253 for (modules
= argvalue
; *modules
; ++modules
) {
271 debug
|= DEBUG_ERROR
;
277 if (modules
[1] == '1') {
278 debug
|= DEBUG_GRAPH1
;
281 else if (modules
[1] == '2') {
282 debug
|= DEBUG_GRAPH2
;
285 else if (modules
[1] == '3') {
286 debug
|= DEBUG_GRAPH3
;
303 debug
|= DEBUG_SCRIPT
;
306 debug
|= DEBUG_PARSE
;
321 debug
|= DEBUG_SHELL
;
324 if (debug_file
!= stdout
&& debug_file
!= stderr
)
326 if (*++modules
== '+') {
331 if (strcmp(modules
, "stdout") == 0) {
335 if (strcmp(modules
, "stderr") == 0) {
339 len
= strlen(modules
);
340 fname
= bmake_malloc(len
+ 20);
341 memcpy(fname
, modules
, len
+ 1);
342 /* Let the filename be modified by the pid */
343 if (strcmp(fname
+ len
- 3, ".%d") == 0)
344 snprintf(fname
+ len
- 2, 20, "%d", getpid());
345 debug_file
= fopen(fname
, mode
);
347 fprintf(stderr
, "Cannot open debug file %s\n",
354 (void)fprintf(stderr
,
355 "%s: illegal argument to d option -- %c\n",
362 * Make the debug_file unbuffered, and make
363 * stdout line buffered (unless debugfile == stdout).
365 setvbuf(debug_file
, NULL
, _IONBF
, 0);
366 if (debug_file
!= stdout
) {
367 setvbuf(stdout
, NULL
, _IOLBF
, 0);
372 * does path contain any relative components
375 is_relpath(const char *path
)
383 cp
= strstr(cp
, "/.");
387 if (cp
[0] == '/' || cp
[0] == '\0')
389 else if (cp
[0] == '.') {
390 if (cp
[1] == '/' || cp
[1] == '\0')
399 * Parse a given argument vector. Called from main() and from
400 * Main_ParseArgLine() when the .MAKEFLAGS target is used.
402 * XXX: Deal with command line overriding .MAKEFLAGS in makefile
408 * Various global and local flags will be set depending on the flags
412 MainParseArgs(int argc
, char **argv
)
418 const char *getopt_def
;
421 Boolean inOption
, dashDash
= FALSE
;
422 char found_path
[MAXPATHLEN
+ 1]; /* for searching for sys.mk */
424 #define OPTFLAGS "BC:D:I:J:NST:V:WXd:ef:ij:km:nqrstw"
425 /* Can't actually use getopt(3) because rescanning is not portable */
427 getopt_def
= OPTFLAGS
;
445 if (c
!= '-' || dashDash
)
450 /* '-' found at some earlier point */
451 getopt_spec
= strchr(getopt_def
, c
);
452 if(c
!= '\0' && getopt_spec
!= NULL
&& getopt_spec
[1] == ':') {
453 /* -<something> found, and <something> should have an arg */
457 if(*argvalue
== '\0') {
473 Var_Append(MAKEFLAGS
, "-B", VAR_GLOBAL
);
474 Var_Set(MAKE_MODE
, "compat", VAR_GLOBAL
, 0);
477 if (chdir(argvalue
) == -1) {
478 (void)fprintf(stderr
,
479 "%s: chdir %s: %s\n",
484 if (getcwd(curdir
, MAXPATHLEN
) == NULL
) {
485 (void)fprintf(stderr
, "%s: %s.\n", progname
, strerror(errno
));
488 if (!is_relpath(argvalue
) &&
489 stat(argvalue
, &sa
) != -1 &&
490 stat(curdir
, &sb
) != -1 &&
491 sa
.st_ino
== sb
.st_ino
&&
492 sa
.st_dev
== sb
.st_dev
)
493 strncpy(curdir
, argvalue
, MAXPATHLEN
);
497 if (argvalue
== NULL
|| argvalue
[0] == 0) goto noarg
;
498 Var_Set(argvalue
, "1", VAR_GLOBAL
, 0);
499 Var_Append(MAKEFLAGS
, "-D", VAR_GLOBAL
);
500 Var_Append(MAKEFLAGS
, argvalue
, VAR_GLOBAL
);
503 if (argvalue
== NULL
) goto noarg
;
504 Parse_AddIncludeDir(argvalue
);
505 Var_Append(MAKEFLAGS
, "-I", VAR_GLOBAL
);
506 Var_Append(MAKEFLAGS
, argvalue
, VAR_GLOBAL
);
509 if (argvalue
== NULL
) goto noarg
;
510 if (sscanf(argvalue
, "%d,%d", &jp_0
, &jp_1
) != 2) {
511 (void)fprintf(stderr
,
512 "%s: internal error -- J option malformed (%s)\n",
516 if ((fcntl(jp_0
, F_GETFD
, 0) < 0) ||
517 (fcntl(jp_1
, F_GETFD
, 0) < 0)) {
519 (void)fprintf(stderr
,
520 "%s: ###### warning -- J descriptors were closed!\n",
528 Var_Append(MAKEFLAGS
, "-J", VAR_GLOBAL
);
529 Var_Append(MAKEFLAGS
, argvalue
, VAR_GLOBAL
);
535 noRecursiveExecute
= TRUE
;
536 Var_Append(MAKEFLAGS
, "-N", VAR_GLOBAL
);
540 Var_Append(MAKEFLAGS
, "-S", VAR_GLOBAL
);
543 if (argvalue
== NULL
) goto noarg
;
544 tracefile
= bmake_strdup(argvalue
);
545 Var_Append(MAKEFLAGS
, "-T", VAR_GLOBAL
);
546 Var_Append(MAKEFLAGS
, argvalue
, VAR_GLOBAL
);
549 if (argvalue
== NULL
) goto noarg
;
551 (void)Lst_AtEnd(variables
, argvalue
);
552 Var_Append(MAKEFLAGS
, "-V", VAR_GLOBAL
);
553 Var_Append(MAKEFLAGS
, argvalue
, VAR_GLOBAL
);
556 parseWarnFatal
= TRUE
;
559 varNoExportEnv
= TRUE
;
560 Var_Append(MAKEFLAGS
, "-X", VAR_GLOBAL
);
563 if (argvalue
== NULL
) goto noarg
;
564 /* If '-d-opts' don't pass to children */
565 if (argvalue
[0] == '-')
568 Var_Append(MAKEFLAGS
, "-d", VAR_GLOBAL
);
569 Var_Append(MAKEFLAGS
, argvalue
, VAR_GLOBAL
);
571 parse_debug_options(argvalue
);
574 checkEnvFirst
= TRUE
;
575 Var_Append(MAKEFLAGS
, "-e", VAR_GLOBAL
);
578 if (argvalue
== NULL
) goto noarg
;
579 (void)Lst_AtEnd(makefiles
, argvalue
);
583 Var_Append(MAKEFLAGS
, "-i", VAR_GLOBAL
);
586 if (argvalue
== NULL
) goto noarg
;
588 maxJobs
= strtol(argvalue
, &p
, 0);
589 if (*p
!= '\0' || maxJobs
< 1) {
590 (void)fprintf(stderr
, "%s: illegal argument to -j -- must be positive integer!\n",
594 Var_Append(MAKEFLAGS
, "-j", VAR_GLOBAL
);
595 Var_Append(MAKEFLAGS
, argvalue
, VAR_GLOBAL
);
596 Var_Set(".MAKE.JOBS", argvalue
, VAR_GLOBAL
, 0);
597 maxJobTokens
= maxJobs
;
601 Var_Append(MAKEFLAGS
, "-k", VAR_GLOBAL
);
604 if (argvalue
== NULL
) goto noarg
;
605 /* look for magic parent directory search string */
606 if (strncmp(".../", argvalue
, 4) == 0) {
607 if (!Dir_FindHereOrAbove(curdir
, argvalue
+4,
608 found_path
, sizeof(found_path
)))
609 break; /* nothing doing */
610 (void)Dir_AddDir(sysIncPath
, found_path
);
612 (void)Dir_AddDir(sysIncPath
, argvalue
);
614 Var_Append(MAKEFLAGS
, "-m", VAR_GLOBAL
);
615 Var_Append(MAKEFLAGS
, argvalue
, VAR_GLOBAL
);
619 Var_Append(MAKEFLAGS
, "-n", VAR_GLOBAL
);
623 /* Kind of nonsensical, wot? */
624 Var_Append(MAKEFLAGS
, "-q", VAR_GLOBAL
);
628 Var_Append(MAKEFLAGS
, "-r", VAR_GLOBAL
);
632 Var_Append(MAKEFLAGS
, "-s", VAR_GLOBAL
);
636 Var_Append(MAKEFLAGS
, "-t", VAR_GLOBAL
);
640 Var_Append(MAKEFLAGS
, "-w", VAR_GLOBAL
);
648 fprintf(stderr
, "getopt(%s) -> %d (%c)\n",
660 * See if the rest of the arguments are variable assignments and
661 * perform them if so. Else take them to be targets and stuff them
662 * on the end of the "create" list.
664 for (; argc
> 1; ++argv
, --argc
)
665 if (Parse_IsVar(argv
[1])) {
666 Parse_DoVar(argv
[1], VAR_CMD
);
669 Punt("illegal (null) argument.");
670 if (*argv
[1] == '-' && !dashDash
)
672 (void)Lst_AtEnd(create
, bmake_strdup(argv
[1]));
677 (void)fprintf(stderr
, "%s: option requires an argument -- %c\n",
683 * Main_ParseArgLine --
684 * Used by the parse module when a .MFLAGS or .MAKEFLAGS target
685 * is encountered and by main() when reading the .MAKEFLAGS envariable.
686 * Takes a line of arguments and breaks it into its
687 * component words and passes those words and the number of them to the
688 * MainParseArgs function.
689 * The line should have all its leading whitespace removed.
692 * line Line to fracture
698 * Only those that come from the various arguments.
701 Main_ParseArgLine(const char *line
)
703 char **argv
; /* Manufactured argument vector */
704 int argc
; /* Number of arguments in argv */
705 char *args
; /* Space used by the args */
707 char *argv0
= Var_Value(".MAKE", VAR_GLOBAL
, &p1
);
712 for (; *line
== ' '; ++line
)
720 * $MAKE may simply be naming the make(1) binary
724 if (!(cp
= strrchr(line
, '/')))
726 if ((cp
= strstr(cp
, "make")) &&
727 strcmp(cp
, "make") == 0)
731 buf
= bmake_malloc(len
= strlen(line
) + strlen(argv0
) + 2);
732 (void)snprintf(buf
, len
, "%s %s", argv0
, line
);
735 argv
= brk_string(buf
, &argc
, TRUE
, &args
);
737 Error("Unterminated quoted string [%s]", buf
);
742 MainParseArgs(argc
, argv
);
749 Main_SetObjdir(const char *fmt
, ...)
753 char buf
[MAXPATHLEN
+ 1];
754 char buf2
[MAXPATHLEN
+ 1];
759 vsnprintf(path
= buf
, MAXPATHLEN
, fmt
, ap
);
762 if (path
[0] != '/') {
763 snprintf(buf2
, MAXPATHLEN
, "%s/%s", curdir
, path
);
767 /* look for the directory and try to chdir there */
768 if (stat(path
, &sb
) == 0 && S_ISDIR(sb
.st_mode
)) {
770 (void)fprintf(stderr
, "make warning: %s: %s.\n",
771 path
, strerror(errno
));
773 strncpy(objdir
, path
, MAXPATHLEN
);
774 Var_Set(".OBJDIR", objdir
, VAR_GLOBAL
, 0);
775 setenv("PWD", objdir
, 1);
777 purge_cached_realpaths();
779 if (enterFlag
&& strcmp(objdir
, curdir
) != 0)
788 Main_SetVarObjdir(const char *var
, const char *suffix
)
790 char *p
, *path
, *xpath
;
792 if ((path
= Var_Value(var
, VAR_CMD
, &p
)) == NULL
)
795 /* expand variable substitutions */
796 if (strchr(path
, '$') != 0)
797 xpath
= Var_Subst(NULL
, path
, VAR_GLOBAL
, VARF_WANTRES
);
801 (void)Main_SetObjdir("%s%s", xpath
, suffix
);
810 * ReadAllMakefiles --
811 * wrapper around ReadMakefile() to read all.
814 * TRUE if ok, FALSE on error
817 ReadAllMakefiles(const void *p
, const void *q
)
819 return (ReadMakefile(p
, q
) == 0);
823 str2Lst_Append(Lst lp
, char *str
, const char *sep
)
831 for (n
= 0, cp
= strtok(str
, sep
); cp
; cp
= strtok(NULL
, sep
)) {
832 (void)Lst_AtEnd(lp
, cp
);
841 siginfo(int signo MAKE_ATTR_UNUSED
)
843 char dir
[MAXPATHLEN
];
844 char str
[2 * MAXPATHLEN
];
846 if (getcwd(dir
, sizeof(dir
)) == NULL
)
848 len
= snprintf(str
, sizeof(str
), "%s: Working in: %s\n", progname
, dir
);
850 (void)write(STDERR_FILENO
, str
, (size_t)len
);
855 * Allow makefiles some control over the mode we run in.
858 MakeMode(const char *mode
)
863 mode
= mp
= Var_Subst(NULL
, "${" MAKE_MODE
":tl}",
864 VAR_GLOBAL
, VARF_WANTRES
);
867 if (strstr(mode
, "compat")) {
872 if (strstr(mode
, "meta"))
873 meta_mode_init(mode
);
882 * The main function, for obvious reasons. Initializes variables
883 * and a few modules, then parses the arguments give it in the
884 * environment and on the command line. Reads the system makefile
885 * followed by either Makefile, makefile or the file given by the
886 * -f argument. Sets the .MAKEFLAGS PMake variable based on all the
887 * flags it has received by then uses either the Make or the Compat
888 * module to create the initial list of targets.
891 * If -q was given, exits -1 if anything was out-of-date. Else it exits
895 * The program exits when done. Targets are created. etc. etc. etc.
898 main(int argc
, char **argv
)
900 Lst targs
; /* target nodes to create -- passed to Make_Init */
901 Boolean outOfDate
= FALSE
; /* FALSE if all targets up to date */
904 char mdpath
[MAXPATHLEN
];
906 const char *machine
= FORCE_MACHINE
;
908 const char *machine
= getenv("MACHINE");
910 const char *machine_arch
= getenv("MACHINE_ARCH");
911 char *syspath
= getenv("MAKESYSPATH");
912 Lst sysMkPath
; /* Path of sys.mk */
913 char *cp
= NULL
, *start
;
914 /* avoid faults on read-only strings */
915 static char defsyspath
[] = _PATH_DEFSYSPATH
;
916 char found_path
[MAXPATHLEN
+ 1]; /* for searching for sys.mk */
917 struct timeval rightnow
; /* to initialize random seed */
918 struct utsname utsname
;
920 /* default to writing debug to stderr */
924 (void)bmake_signal(SIGINFO
, siginfo
);
927 * Set the seed to produce a different random sequence
928 * on each program execution.
930 gettimeofday(&rightnow
, NULL
);
931 srandom(rightnow
.tv_sec
+ rightnow
.tv_usec
);
933 if ((progname
= strrchr(argv
[0], '/')) != NULL
)
937 #if defined(MAKE_NATIVE) || (defined(HAVE_SETRLIMIT) && defined(RLIMIT_NOFILE))
939 * get rid of resource limit on file descriptors
943 if (getrlimit(RLIMIT_NOFILE
, &rl
) != -1 &&
944 rl
.rlim_cur
!= rl
.rlim_max
) {
945 rl
.rlim_cur
= rl
.rlim_max
;
946 (void)setrlimit(RLIMIT_NOFILE
, &rl
);
951 if (uname(&utsname
) == -1) {
952 (void)fprintf(stderr
, "%s: uname failed (%s).\n", progname
,
958 * Get the name of this type of MACHINE from utsname
959 * so we can share an executable for similar machines.
960 * (i.e. m68k: amiga hp300, mac68k, sun3, ...)
962 * Note that both MACHINE and MACHINE_ARCH are decided at
967 machine
= utsname
.machine
;
970 machine
= MAKE_MACHINE
;
978 #if defined(MAKE_NATIVE) && defined(HAVE_SYSCTL) && defined(CTL_HW) && defined(HW_MACHINE_ARCH)
979 static char machine_arch_buf
[sizeof(utsname
.machine
)];
980 int mib
[2] = { CTL_HW
, HW_MACHINE_ARCH
};
981 size_t len
= sizeof(machine_arch_buf
);
983 if (sysctl(mib
, __arraycount(mib
), machine_arch_buf
,
984 &len
, NULL
, 0) < 0) {
985 (void)fprintf(stderr
, "%s: sysctl failed (%s).\n", progname
,
990 machine_arch
= machine_arch_buf
;
993 #ifdef MAKE_MACHINE_ARCH
994 machine_arch
= MAKE_MACHINE_ARCH
;
996 machine_arch
= "unknown";
999 machine_arch
= MACHINE_ARCH
;
1004 myPid
= getpid(); /* remember this for vFork() */
1007 * Just in case MAKEOBJDIR wants us to do something tricky.
1009 Var_Init(); /* Initialize the lists of variables for
1010 * parsing arguments */
1011 Var_Set(".MAKE.OS", utsname
.sysname
, VAR_GLOBAL
, 0);
1012 Var_Set("MACHINE", machine
, VAR_GLOBAL
, 0);
1013 Var_Set("MACHINE_ARCH", machine_arch
, VAR_GLOBAL
, 0);
1015 Var_Set("MAKE_VERSION", MAKE_VERSION
, VAR_GLOBAL
, 0);
1017 Var_Set(".newline", "\n", VAR_GLOBAL
, 0); /* handy for :@ loops */
1019 * This is the traditional preference for makefiles.
1021 #ifndef MAKEFILE_PREFERENCE_LIST
1022 # define MAKEFILE_PREFERENCE_LIST "makefile Makefile"
1024 Var_Set(MAKEFILE_PREFERENCE
, MAKEFILE_PREFERENCE_LIST
,
1026 Var_Set(MAKE_DEPENDFILE
, ".depend", VAR_GLOBAL
, 0);
1028 create
= Lst_Init(FALSE
);
1029 makefiles
= Lst_Init(FALSE
);
1032 variables
= Lst_Init(FALSE
);
1033 beSilent
= FALSE
; /* Print commands as executed */
1034 ignoreErrors
= FALSE
; /* Pay attention to non-zero returns */
1035 noExecute
= FALSE
; /* Execute all commands */
1036 noRecursiveExecute
= FALSE
; /* Execute all .MAKE targets */
1037 keepgoing
= FALSE
; /* Stop on error */
1038 allPrecious
= FALSE
; /* Remove targets when interrupted */
1039 deleteOnError
= FALSE
; /* Historical default behavior */
1040 queryFlag
= FALSE
; /* This is not just a check-run */
1041 noBuiltins
= FALSE
; /* Read the built-in rules */
1042 touchFlag
= FALSE
; /* Actually update targets */
1043 debug
= 0; /* No debug verbosity, please. */
1044 jobsRunning
= FALSE
;
1046 maxJobs
= DEFMAXLOCAL
; /* Set default local max concurrency */
1047 maxJobTokens
= maxJobs
;
1048 compatMake
= FALSE
; /* No compat mode */
1052 * Initialize the parsing, directory and variable modules to prepare
1053 * for the reading of inclusion paths and variable settings on the
1058 * Initialize various variables.
1059 * MAKE also gets this name, for compatibility
1060 * .MAKEFLAGS gets set to the empty string just in case.
1061 * MFLAGS also gets initialized empty, for compatibility.
1064 if (argv
[0][0] == '/' || strchr(argv
[0], '/') == NULL
) {
1066 * Leave alone if it is an absolute path, or if it does
1067 * not contain a '/' in which case we need to find it in
1068 * the path, like execvp(3) and the shells do.
1073 * A relative path, canonicalize it.
1075 p1
= cached_realpath(argv
[0], mdpath
);
1076 if (!p1
|| *p1
!= '/' || stat(p1
, &sb
) < 0) {
1077 p1
= argv
[0]; /* realpath failed */
1080 Var_Set("MAKE", p1
, VAR_GLOBAL
, 0);
1081 Var_Set(".MAKE", p1
, VAR_GLOBAL
, 0);
1082 Var_Set(MAKEFLAGS
, "", VAR_GLOBAL
, 0);
1083 Var_Set(MAKEOVERRIDES
, "", VAR_GLOBAL
, 0);
1084 Var_Set("MFLAGS", "", VAR_GLOBAL
, 0);
1085 Var_Set(".ALLTARGETS", "", VAR_GLOBAL
, 0);
1086 /* some makefiles need to know this */
1087 Var_Set(MAKE_LEVEL
".ENV", MAKE_LEVEL_ENV
, VAR_CMD
, 0);
1090 * Set some other useful macros
1095 makelevel
= ((ep
= getenv(MAKE_LEVEL_ENV
)) && *ep
) ? atoi(ep
) : 0;
1098 snprintf(tmp
, sizeof(tmp
), "%d", makelevel
);
1099 Var_Set(MAKE_LEVEL
, tmp
, VAR_GLOBAL
, 0);
1100 snprintf(tmp
, sizeof(tmp
), "%u", myPid
);
1101 Var_Set(".MAKE.PID", tmp
, VAR_GLOBAL
, 0);
1102 snprintf(tmp
, sizeof(tmp
), "%u", getppid());
1103 Var_Set(".MAKE.PPID", tmp
, VAR_GLOBAL
, 0);
1105 if (makelevel
> 0) {
1107 snprintf(pn
, sizeof(pn
), "%s[%d]", progname
, makelevel
);
1108 progname
= bmake_strdup(pn
);
1114 Dir_Init(NULL
); /* Dir_* safe to call from MainParseArgs */
1117 * First snag any flags out of the MAKE environment variable.
1118 * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's
1119 * in a different format).
1122 p1
= explode(getenv("MAKEFLAGS"));
1123 Main_ParseArgLine(p1
);
1126 Main_ParseArgLine(getenv("MAKE"));
1130 * Find where we are (now).
1131 * We take care of PWD for the automounter below...
1133 if (getcwd(curdir
, MAXPATHLEN
) == NULL
) {
1134 (void)fprintf(stderr
, "%s: getcwd: %s.\n",
1135 progname
, strerror(errno
));
1139 MainParseArgs(argc
, argv
);
1142 printf("%s: Entering directory `%s'\n", progname
, curdir
);
1145 * Verify that cwd is sane.
1147 if (stat(curdir
, &sa
) == -1) {
1148 (void)fprintf(stderr
, "%s: %s: %s.\n",
1149 progname
, curdir
, strerror(errno
));
1154 * All this code is so that we know where we are when we start up
1155 * on a different machine with pmake.
1156 * Overriding getcwd() with $PWD totally breaks MAKEOBJDIRPREFIX
1157 * since the value of curdir can vary depending on how we got
1158 * here. Ie sitting at a shell prompt (shell that provides $PWD)
1159 * or via subdir.mk in which case its likely a shell which does
1161 * So, to stop it breaking this case only, we ignore PWD if
1162 * MAKEOBJDIRPREFIX is set or MAKEOBJDIR contains a transform.
1164 #ifndef NO_PWD_OVERRIDE
1166 char *pwd
, *ptmp1
= NULL
, *ptmp2
= NULL
;
1168 if ((pwd
= getenv("PWD")) != NULL
&&
1169 Var_Value("MAKEOBJDIRPREFIX", VAR_CMD
, &ptmp1
) == NULL
) {
1170 const char *makeobjdir
= Var_Value("MAKEOBJDIR",
1173 if (makeobjdir
== NULL
|| !strchr(makeobjdir
, '$')) {
1174 if (stat(pwd
, &sb
) == 0 &&
1175 sa
.st_ino
== sb
.st_ino
&&
1176 sa
.st_dev
== sb
.st_dev
)
1177 (void)strncpy(curdir
, pwd
, MAXPATHLEN
);
1184 Var_Set(".CURDIR", curdir
, VAR_GLOBAL
, 0);
1187 * Find the .OBJDIR. If MAKEOBJDIRPREFIX, or failing that,
1188 * MAKEOBJDIR is set in the environment, try only that value
1189 * and fall back to .CURDIR if it does not exist.
1191 * Otherwise, try _PATH_OBJDIR.MACHINE-MACHINE_ARCH, _PATH_OBJDIR.MACHINE,
1192 * and * finally _PATH_OBJDIRPREFIX`pwd`, in that order. If none
1193 * of these paths exist, just use .CURDIR.
1196 (void)Main_SetObjdir("%s", curdir
);
1198 if (!Main_SetVarObjdir("MAKEOBJDIRPREFIX", curdir
) &&
1199 !Main_SetVarObjdir("MAKEOBJDIR", "") &&
1200 !Main_SetObjdir("%s.%s-%s", _PATH_OBJDIR
, machine
, machine_arch
) &&
1201 !Main_SetObjdir("%s.%s", _PATH_OBJDIR
, machine
) &&
1202 !Main_SetObjdir("%s", _PATH_OBJDIR
))
1203 (void)Main_SetObjdir("%s%s", _PATH_OBJDIRPREFIX
, curdir
);
1206 * Initialize archive, target and suffix modules in preparation for
1207 * parsing the makefile(s)
1212 Trace_Init(tracefile
);
1217 Trace_Log(MAKESTART
, NULL
);
1220 * Set up the .TARGETS variable to contain the list of targets to be
1221 * created. If none specified, make the variable empty -- the parser
1222 * will fill the thing in with the default or .MAIN target.
1224 if (!Lst_IsEmpty(create
)) {
1227 for (ln
= Lst_First(create
); ln
!= NULL
;
1228 ln
= Lst_Succ(ln
)) {
1229 char *name
= (char *)Lst_Datum(ln
);
1231 Var_Append(".TARGETS", name
, VAR_GLOBAL
);
1234 Var_Set(".TARGETS", "", VAR_GLOBAL
, 0);
1238 * If no user-supplied system path was given (through the -m option)
1239 * add the directories from the DEFSYSPATH (more than one may be given
1240 * as dir1:...:dirn) to the system include path.
1242 if (syspath
== NULL
|| *syspath
== '\0')
1243 syspath
= defsyspath
;
1245 syspath
= bmake_strdup(syspath
);
1247 for (start
= syspath
; *start
!= '\0'; start
= cp
) {
1248 for (cp
= start
; *cp
!= '\0' && *cp
!= ':'; cp
++)
1253 /* look for magic parent directory search string */
1254 if (strncmp(".../", start
, 4) != 0) {
1255 (void)Dir_AddDir(defIncPath
, start
);
1257 if (Dir_FindHereOrAbove(curdir
, start
+4,
1258 found_path
, sizeof(found_path
))) {
1259 (void)Dir_AddDir(defIncPath
, found_path
);
1263 if (syspath
!= defsyspath
)
1267 * Read in the built-in rules first, followed by the specified
1268 * makefile, if it was (makefile != NULL), or the default
1269 * makefile and Makefile, in that order, if it wasn't.
1274 sysMkPath
= Lst_Init(FALSE
);
1275 Dir_Expand(_PATH_DEFSYSMK
,
1276 Lst_IsEmpty(sysIncPath
) ? defIncPath
: sysIncPath
,
1278 if (Lst_IsEmpty(sysMkPath
))
1279 Fatal("%s: no system rules (%s).", progname
,
1281 ln
= Lst_Find(sysMkPath
, NULL
, ReadMakefile
);
1283 Fatal("%s: cannot open %s.", progname
,
1284 (char *)Lst_Datum(ln
));
1287 if (!Lst_IsEmpty(makefiles
)) {
1290 ln
= Lst_Find(makefiles
, NULL
, ReadAllMakefiles
);
1292 Fatal("%s: cannot open %s.", progname
,
1293 (char *)Lst_Datum(ln
));
1295 p1
= Var_Subst(NULL
, "${" MAKEFILE_PREFERENCE
"}",
1296 VAR_CMD
, VARF_WANTRES
);
1298 (void)str2Lst_Append(makefiles
, p1
, NULL
);
1299 (void)Lst_Find(makefiles
, NULL
, ReadMakefile
);
1304 /* In particular suppress .depend for '-r -V .OBJDIR -f /dev/null' */
1305 if (!noBuiltins
|| !printVars
) {
1306 makeDependfile
= Var_Subst(NULL
, "${.MAKE.DEPENDFILE:T}",
1307 VAR_CMD
, VARF_WANTRES
);
1308 doing_depend
= TRUE
;
1309 (void)ReadMakefile(makeDependfile
, NULL
);
1310 doing_depend
= FALSE
;
1314 printf("%s: Entering directory `%s'\n", progname
, objdir
);
1318 Var_Append("MFLAGS", Var_Value(MAKEFLAGS
, VAR_GLOBAL
, &p1
), VAR_GLOBAL
);
1321 if (!forceJobs
&& !compatMake
&&
1322 Var_Exists(".MAKE.JOBS", VAR_GLOBAL
)) {
1326 value
= Var_Subst(NULL
, "${.MAKE.JOBS}", VAR_GLOBAL
, VARF_WANTRES
);
1327 n
= strtol(value
, NULL
, 0);
1329 (void)fprintf(stderr
, "%s: illegal value for .MAKE.JOBS -- must be positive integer!\n",
1334 Var_Append(MAKEFLAGS
, "-j", VAR_GLOBAL
);
1335 Var_Append(MAKEFLAGS
, value
, VAR_GLOBAL
);
1338 maxJobTokens
= maxJobs
;
1344 * Be compatible if user did not specify -j and did not explicitly
1345 * turned compatibility on
1347 if (!compatMake
&& !forceJobs
) {
1352 Job_ServerStart(maxJobTokens
, jp_0
, jp_1
);
1354 fprintf(debug_file
, "job_pipe %d %d, maxjobs %d, tokens %d, compat %d\n",
1355 jp_0
, jp_1
, maxJobs
, maxJobTokens
, compatMake
);
1358 Main_ExportMAKEFLAGS(TRUE
); /* initial export */
1361 * For compatibility, look at the directories in the VPATH variable
1362 * and add them to the search path, if the variable is defined. The
1363 * variable's value is in the same format as the PATH envariable, i.e.
1364 * <directory>:<directory>:<directory>...
1366 if (Var_Exists("VPATH", VAR_CMD
)) {
1369 * GCC stores string constants in read-only memory, but
1370 * Var_Subst will want to write this thing, so store it
1373 static char VPATH
[] = "${VPATH}";
1375 vpath
= Var_Subst(NULL
, VPATH
, VAR_CMD
, VARF_WANTRES
);
1378 /* skip to end of directory */
1379 for (cp
= path
; *cp
!= ':' && *cp
!= '\0'; cp
++)
1381 /* Save terminator character so know when to stop */
1384 /* Add directory to search path */
1385 (void)Dir_AddDir(dirSearchPath
, path
);
1388 } while (savec
== ':');
1393 * Now that all search paths have been read for suffixes et al, it's
1394 * time to add the default search path to their lists...
1399 * Propagate attributes through :: dependency lists.
1403 /* print the initial graph, if the user requested it */
1407 /* print the values of any variables requested by the user */
1415 expandVars
= getBoolean(".MAKE.EXPAND_VARIABLES", FALSE
);
1416 for (ln
= Lst_First(variables
); ln
!= NULL
;
1417 ln
= Lst_Succ(ln
)) {
1418 char *var
= (char *)Lst_Datum(ln
);
1421 if (strchr(var
, '$')) {
1422 value
= p1
= Var_Subst(NULL
, var
, VAR_GLOBAL
,
1424 } else if (expandVars
) {
1427 if (snprintf(tmp
, sizeof(tmp
), "${%s}", var
) >= (int)(sizeof(tmp
)))
1428 Fatal("%s: variable name too big: %s",
1430 value
= p1
= Var_Subst(NULL
, tmp
, VAR_GLOBAL
,
1433 value
= Var_Value(var
, VAR_GLOBAL
, &p1
);
1435 printf("%s\n", value
? value
: "");
1440 * Have now read the entire graph and need to make a list of
1441 * targets to create. If none was given on the command line,
1442 * we consult the parsing module to find the main target(s)
1445 if (Lst_IsEmpty(create
))
1446 targs
= Parse_MainName();
1448 targs
= Targ_FindList(create
, TARG_CREATE
);
1452 * Initialize job module before traversing the graph
1453 * now that any .BEGIN and .END targets have been read.
1454 * This is done only if the -q flag wasn't given
1455 * (to prevent the .BEGIN from being executed should
1463 /* Traverse the graph, checking on all the targets */
1464 outOfDate
= Make_Run(targs
);
1467 * Compat_Init will take care of creating all the
1468 * targets as well as initializing the module.
1475 Lst_Destroy(targs
, NULL
);
1476 Lst_Destroy(variables
, NULL
);
1477 Lst_Destroy(makefiles
, NULL
);
1478 Lst_Destroy(create
, (FreeProc
*)free
);
1481 /* print the graph now it's been processed if the user requested it */
1485 Trace_Log(MAKEEND
, 0);
1488 printf("%s: Leaving directory `%s'\n", progname
, objdir
);
1490 printf("%s: Leaving directory `%s'\n", progname
, curdir
);
1504 return outOfDate
? 1 : 0;
1509 * Open and parse the given makefile.
1512 * 0 if ok. -1 if couldn't open file.
1518 ReadMakefile(const void *p
, const void *q MAKE_ATTR_UNUSED
)
1520 const char *fname
= p
; /* makefile to read */
1522 size_t len
= MAXPATHLEN
;
1523 char *name
, *path
= bmake_malloc(len
);
1525 if (!strcmp(fname
, "-")) {
1526 Parse_File(NULL
/*stdin*/, -1);
1527 Var_Set("MAKEFILE", "", VAR_INTERNAL
, 0);
1529 /* if we've chdir'd, rebuild the path name */
1530 if (strcmp(curdir
, objdir
) && *fname
!= '/') {
1531 size_t plen
= strlen(curdir
) + strlen(fname
) + 2;
1533 path
= bmake_realloc(path
, len
= 2 * plen
);
1535 (void)snprintf(path
, len
, "%s/%s", curdir
, fname
);
1536 fd
= open(path
, O_RDONLY
);
1542 /* If curdir failed, try objdir (ala .depend) */
1543 plen
= strlen(objdir
) + strlen(fname
) + 2;
1545 path
= bmake_realloc(path
, len
= 2 * plen
);
1546 (void)snprintf(path
, len
, "%s/%s", objdir
, fname
);
1547 fd
= open(path
, O_RDONLY
);
1553 fd
= open(fname
, O_RDONLY
);
1557 /* look in -I and system include directories. */
1558 name
= Dir_FindFile(fname
, parseIncPath
);
1560 name
= Dir_FindFile(fname
,
1561 Lst_IsEmpty(sysIncPath
) ? defIncPath
: sysIncPath
);
1562 if (!name
|| (fd
= open(name
, O_RDONLY
)) == -1) {
1569 * set the MAKEFILE variable desired by System V fans -- the
1570 * placement of the setting here means it gets set to the last
1571 * makefile specified, as it is set by SysV make.
1575 Var_Set("MAKEFILE", fname
, VAR_INTERNAL
, 0);
1576 Parse_File(fname
, fd
);
1586 * Execute the command in cmd, and return the output of that command
1590 * A string containing the output of the command, or the empty string
1591 * If errnum is not NULL, it contains the reason for the command failure
1594 * The string must be freed by the caller.
1597 Cmd_Exec(const char *cmd
, const char **errnum
)
1599 const char *args
[4]; /* Args for invoking the shell */
1600 int fds
[2]; /* Pipe streams */
1601 int cpid
; /* Child PID */
1602 int pid
; /* PID from wait() */
1603 char *res
; /* result */
1604 WAIT_T status
; /* command exit status */
1605 Buffer buf
; /* buffer to store the result */
1607 int cc
; /* bytes read, or -1 */
1608 int savederr
; /* saved errno */
1616 * Set up arguments for shell
1618 args
[0] = shellName
;
1624 * Open a pipe for fetching its output
1626 if (pipe(fds
) == -1) {
1627 *errnum
= "Couldn't create pipe for \"%s\"";
1634 switch (cpid
= vFork()) {
1637 * Close input side of pipe
1639 (void)close(fds
[0]);
1642 * Duplicate the output stream to the shell's output, then
1643 * shut the extra thing down. Note we don't fetch the error
1644 * stream...why not? Why?
1646 (void)dup2(fds
[1], 1);
1647 (void)close(fds
[1]);
1651 (void)execv(shellPath
, UNCONST(args
));
1656 *errnum
= "Couldn't exec \"%s\"";
1661 * No need for the writing half
1663 (void)close(fds
[1]);
1669 char result
[BUFSIZ
];
1670 cc
= read(fds
[0], result
, sizeof(result
));
1672 Buf_AddBytes(&buf
, cc
, result
);
1674 while (cc
> 0 || (cc
== -1 && errno
== EINTR
));
1679 * Close the input side of the pipe.
1681 (void)close(fds
[0]);
1684 * Wait for the process to exit.
1686 while(((pid
= waitpid(cpid
, &status
, 0)) != cpid
) && (pid
>= 0)) {
1687 JobReapChild(pid
, status
, FALSE
);
1690 cc
= Buf_Size(&buf
);
1691 res
= Buf_Destroy(&buf
, FALSE
);
1694 *errnum
= "Couldn't read shell's output for \"%s\"";
1696 if (WIFSIGNALED(status
))
1697 *errnum
= "\"%s\" exited on a signal";
1698 else if (WEXITSTATUS(status
) != 0)
1699 *errnum
= "\"%s\" returned non-zero status";
1702 * Null-terminate the result, convert newlines to spaces and
1703 * install it in the variable.
1708 if (cc
> 0 && *--cp
== '\n') {
1710 * A final newline is just stripped
1724 res
= bmake_malloc(1);
1731 * Print an error message given its format.
1737 * The message is printed.
1741 Error(const char *fmt
, ...)
1746 err_file
= debug_file
;
1747 if (err_file
== stdout
)
1749 (void)fflush(stdout
);
1752 fprintf(err_file
, "%s: ", progname
);
1753 (void)vfprintf(err_file
, fmt
, ap
);
1755 (void)fprintf(err_file
, "\n");
1756 (void)fflush(err_file
);
1757 if (err_file
== stderr
)
1765 * Produce a Fatal error message. If jobs are running, waits for them
1776 Fatal(const char *fmt
, ...)
1784 (void)fflush(stdout
);
1785 (void)vfprintf(stderr
, fmt
, ap
);
1787 (void)fprintf(stderr
, "\n");
1788 (void)fflush(stderr
);
1790 PrintOnError(NULL
, NULL
);
1792 if (DEBUG(GRAPH2
) || DEBUG(GRAPH3
))
1794 Trace_Log(MAKEERROR
, 0);
1795 exit(2); /* Not 1 so -q can distinguish error */
1800 * Major exception once jobs are being created. Kills all jobs, prints
1801 * a message and exits.
1807 * All children are killed indiscriminately and the program Lib_Exits
1811 Punt(const char *fmt
, ...)
1816 (void)fflush(stdout
);
1817 (void)fprintf(stderr
, "%s: ", progname
);
1818 (void)vfprintf(stderr
, fmt
, ap
);
1820 (void)fprintf(stderr
, "\n");
1821 (void)fflush(stderr
);
1823 PrintOnError(NULL
, NULL
);
1830 * Exit without giving a message.
1845 Trace_Log(MAKEERROR
, 0);
1846 exit(2); /* Not 1, so -q can distinguish error */
1851 * Called when aborting due to errors in child shell to signal
1862 /* number of errors encountered in Make_Make */
1864 Fatal("%d error%s", errors
, errors
== 1 ? "" : "s");
1869 * Remove a file carefully, avoiding directories.
1872 eunlink(const char *file
)
1876 if (lstat(file
, &st
) == -1)
1879 if (S_ISDIR(st
.st_mode
)) {
1883 return unlink(file
);
1888 * Print why exec failed, avoiding stdio.
1891 execError(const char *af
, const char *av
)
1895 struct iovec iov
[8];
1897 (void)(iov[i].iov_base = UNCONST(s), \
1898 iov[i].iov_len = strlen(iov[i].iov_base), \
1901 #define IOADD(s) (void)write(2, s, strlen(s))
1909 IOADD(") failed (");
1910 IOADD(strerror(errno
));
1914 while (writev(2, iov
, 8) == -1 && errno
== EAGAIN
)
1921 * exit with usage message
1927 if ((p
= strchr(progname
, '[')) != NULL
)
1930 (void)fprintf(stderr
,
1931 "usage: %s [-BeikNnqrstWwX] \n\
1932 [-C directory] [-D variable] [-d flags] [-f makefile]\n\
1933 [-I directory] [-J private] [-j max_jobs] [-m directory] [-T file]\n\
1934 [-V variable] [variable=value] [target ...]\n", progname
);
1939 * realpath(3) can get expensive, cache results...
1941 static GNode
*cached_realpaths
= NULL
;
1944 get_cached_realpaths(void)
1947 if (!cached_realpaths
) {
1948 cached_realpaths
= Targ_NewGN("Realpath");
1949 #ifndef DEBUG_REALPATH_CACHE
1950 cached_realpaths
->flags
= INTERNAL
;
1954 return cached_realpaths
;
1957 /* purge any relative paths */
1959 purge_cached_realpaths(void)
1961 GNode
*cache
= get_cached_realpaths();
1962 Hash_Entry
*he
, *nhe
;
1965 he
= Hash_EnumFirst(&cache
->context
, &hs
);
1967 nhe
= Hash_EnumNext(&hs
);
1968 if (he
->name
[0] != '/') {
1970 fprintf(stderr
, "cached_realpath: purging %s\n", he
->name
);
1971 Hash_DeleteEntry(&cache
->context
, he
);
1978 cached_realpath(const char *pathname
, char *resolved
)
1983 if (!pathname
|| !pathname
[0])
1986 cache
= get_cached_realpaths();
1988 if ((rp
= Var_Value(pathname
, cache
, &cp
)) != NULL
) {
1990 strlcpy(resolved
, rp
, MAXPATHLEN
);
1991 } else if ((rp
= realpath(pathname
, resolved
)) != NULL
) {
1992 Var_Set(pathname
, rp
, cache
, 0);
1995 return rp
? resolved
: NULL
;
1999 PrintAddr(void *a
, void *b
)
2001 printf("%lx ", (unsigned long) a
);
2007 addErrorCMD(void *cmdp
, void *gnp MAKE_ATTR_UNUSED
)
2010 return 1; /* stop */
2011 Var_Append(".ERROR_CMD", cmdp
, VAR_GLOBAL
);
2016 PrintOnError(GNode
*gn
, const char *s
)
2018 static GNode
*en
= NULL
;
2022 fprintf(stderr
, "%s\n%s: stopped in %s\n", s
? s
: "", progname
, curdir
);
2025 return; /* we've been here! */
2028 * We can print this even if there is no .ERROR target.
2030 Var_Set(".ERROR_TARGET", gn
->name
, VAR_GLOBAL
, 0);
2031 Var_Delete(".ERROR_CMD", VAR_GLOBAL
);
2032 Lst_ForEach(gn
->commands
, addErrorCMD
, gn
);
2034 strncpy(tmp
, "${MAKE_PRINT_VAR_ON_ERROR:@v@$v='${$v}'\n@}",
2036 cp
= Var_Subst(NULL
, tmp
, VAR_GLOBAL
, VARF_WANTRES
);
2039 fprintf(stderr
, "%s", cp
);
2045 * Finally, see if there is a .ERROR target, and run it if so.
2047 en
= Targ_FindNode(".ERROR", TARG_NOCREATE
);
2049 en
->type
|= OP_SPECIAL
;
2050 Compat_Make(en
, en
);
2055 Main_ExportMAKEFLAGS(Boolean first
)
2057 static int once
= 1;
2065 strncpy(tmp
, "${.MAKEFLAGS} ${.MAKEOVERRIDES:O:u:@v@$v=${$v:Q}@}",
2067 s
= Var_Subst(NULL
, tmp
, VAR_CMD
, VARF_WANTRES
);
2070 setenv("MAKEFLAGS", s
, 1);
2072 setenv("MAKE", s
, 1);
2080 static char *tmpdir
= NULL
;
2086 * Honor $TMPDIR but only if it is valid.
2087 * Ensure it ends with /.
2089 tmpdir
= Var_Subst(NULL
, "${TMPDIR:tA:U" _PATH_TMP
"}/", VAR_GLOBAL
,
2091 if (stat(tmpdir
, &st
) < 0 || !S_ISDIR(st
.st_mode
)) {
2093 tmpdir
= bmake_strdup(_PATH_TMP
);
2100 * Create and open a temp file using "pattern".
2101 * If "fnamep" is provided set it to a copy of the filename created.
2102 * Otherwise unlink the file once open.
2105 mkTempFile(const char *pattern
, char **fnamep
)
2107 static char *tmpdir
= NULL
;
2108 char tfile
[MAXPATHLEN
];
2114 tmpdir
= getTmpdir();
2115 if (pattern
[0] == '/') {
2116 snprintf(tfile
, sizeof(tfile
), "%s", pattern
);
2118 snprintf(tfile
, sizeof(tfile
), "%s%s", tmpdir
, pattern
);
2120 if ((fd
= mkstemp(tfile
)) < 0)
2121 Punt("Could not create temporary file %s: %s", tfile
, strerror(errno
));
2123 *fnamep
= bmake_strdup(tfile
);
2125 unlink(tfile
); /* we just want the descriptor */
2131 * Convert a string representation of a boolean.
2132 * Anything that looks like "No", "False", "Off", "0" etc,
2133 * is FALSE, otherwise TRUE.
2136 s2Boolean(const char *s
, Boolean bf
)
2140 case '\0': /* not set - the default wins */
2170 * Return a Boolean based on setting of a knob.
2172 * If the knob is not set, the supplied default is the return value.
2173 * If set, anything that looks or smells like "No", "False", "Off", "0" etc,
2174 * is FALSE, otherwise TRUE.
2177 getBoolean(const char *name
, Boolean bf
)
2182 if (snprintf(tmp
, sizeof(tmp
), "${%s:U:tl}", name
) < (int)(sizeof(tmp
))) {
2183 cp
= Var_Subst(NULL
, tmp
, VAR_GLOBAL
, VARF_WANTRES
);
2186 bf
= s2Boolean(cp
, bf
);