| 1 | /*
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| 2 | * Copyright (c) 1988, 1989, 1990, 1993
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| 3 | * The Regents of the University of California. All rights reserved.
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| 4 | * Copyright (c) 1989 by Berkeley Softworks
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| 5 | * All rights reserved.
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| 6 | *
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| 7 | * This code is derived from software contributed to Berkeley by
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| 8 | * Adam de Boor.
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| 9 | *
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| 10 | * Redistribution and use in source and binary forms, with or without
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| 11 | * modification, are permitted provided that the following conditions
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| 12 | * are met:
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| 13 | * 1. Redistributions of source code must retain the above copyright
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| 14 | * notice, this list of conditions and the following disclaimer.
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright
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| 16 | * notice, this list of conditions and the following disclaimer in the
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| 17 | * documentation and/or other materials provided with the distribution.
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| 18 | * 3. All advertising materials mentioning features or use of this software
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| 19 | * must display the following acknowledgement:
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| 20 | * This product includes software developed by the University of
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| 21 | * California, Berkeley and its contributors.
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| 22 | * 4. Neither the name of the University nor the names of its contributors
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| 23 | * may be used to endorse or promote products derived from this software
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| 24 | * without specific prior written permission.
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| 25 | *
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| 26 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 27 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 28 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 29 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 30 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 31 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 32 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 33 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 34 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 35 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 36 | * SUCH DAMAGE.
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| 37 | */
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| 38 |
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| 39 | #ifndef lint
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| 40 | static const char copyright[] =
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| 41 | "@(#) Copyright (c) 1988, 1989, 1990, 1993\n\
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| 42 | The Regents of the University of California. All rights reserved.\n";
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| 43 | #endif /* not lint */
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| 44 |
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| 45 | #ifndef lint
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| 46 | #if 0
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| 47 | static char sccsid[] = "@(#)main.c 8.3 (Berkeley) 3/19/94";
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| 48 | #else
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| 49 | static const char rcsid[] =
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| 50 | "$FreeBSD: src/usr.bin/make/main.c,v 1.35.2.6 2002/07/24 16:50:18 ru Exp $";
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| 51 | #endif
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| 52 | #endif /* not lint */
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| 53 |
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| 54 | /*-
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| 55 | * main.c --
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| 56 | * The main file for this entire program. Exit routines etc
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| 57 | * reside here.
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| 58 | *
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| 59 | * Utility functions defined in this file:
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| 60 | * Main_ParseArgLine Takes a line of arguments, breaks them and
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| 61 | * treats them as if they were given when first
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| 62 | * invoked. Used by the parse module to implement
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| 63 | * the .MFLAGS target.
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| 64 | *
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| 65 | * Error Print a tagged error message. The global
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| 66 | * MAKE variable must have been defined. This
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| 67 | * takes a format string and two optional
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| 68 | * arguments for it.
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| 69 | *
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| 70 | * Fatal Print an error message and exit. Also takes
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| 71 | * a format string and two arguments.
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| 72 | *
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| 73 | * Punt Aborts all jobs and exits with a message. Also
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| 74 | * takes a format string and two arguments.
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| 75 | *
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| 76 | * Finish Finish things up by printing the number of
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| 77 | * errors which occured, as passed to it, and
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| 78 | * exiting.
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| 79 | */
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| 80 |
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| 81 | #include <sys/types.h>
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| 82 | #include <sys/time.h>
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| 83 | #include <sys/param.h>
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| 84 | #include <sys/resource.h>
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| 85 | #include <sys/signal.h>
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| 86 | #include <sys/stat.h>
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| 87 | #if defined(__i386__)
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| 88 | #include <sys/sysctl.h>
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| 89 | #endif
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| 90 | #ifndef MACHINE
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| 91 | #include <sys/utsname.h>
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| 92 | #endif
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| 93 | #include <sys/wait.h>
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| 94 | #include <err.h>
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| 95 | #include <stdlib.h>
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| 96 | #include <errno.h>
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| 97 | #include <fcntl.h>
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| 98 | #include <stdio.h>
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| 99 | #include <sysexits.h>
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| 100 | #ifdef __STDC__
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| 101 | #include <stdarg.h>
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| 102 | #else
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| 103 | #include <varargs.h>
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| 104 | #endif
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| 105 | #include "make.h"
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| 106 | #include "hash.h"
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| 107 | #include "dir.h"
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| 108 | #include "job.h"
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| 109 | #include "pathnames.h"
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| 110 |
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| 111 | #ifndef DEFMAXLOCAL
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| 112 | #define DEFMAXLOCAL DEFMAXJOBS
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| 113 | #endif /* DEFMAXLOCAL */
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| 114 |
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| 115 | #define MAKEFLAGS ".MAKEFLAGS"
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| 116 |
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| 117 | Lst create; /* Targets to be made */
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| 118 | time_t now; /* Time at start of make */
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| 119 | GNode *DEFAULT; /* .DEFAULT node */
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| 120 | Boolean allPrecious; /* .PRECIOUS given on line by itself */
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| 121 |
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| 122 | static Boolean noBuiltins; /* -r flag */
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| 123 | static Lst makefiles; /* ordered list of makefiles to read */
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| 124 | static Boolean printVars; /* print value of one or more vars */
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| 125 | static Boolean expandVars; /* fully expand printed variables */
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| 126 | static Lst variables; /* list of variables to print */
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| 127 | int maxJobs; /* -j argument */
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| 128 | static Boolean forceJobs; /* -j argument given */
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| 129 | static int maxLocal; /* -L argument */
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| 130 | Boolean compatMake; /* -B argument */
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| 131 | Boolean debug; /* -d flag */
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| 132 | Boolean noExecute; /* -n flag */
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| 133 | Boolean keepgoing; /* -k flag */
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| 134 | Boolean queryFlag; /* -q flag */
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| 135 | Boolean touchFlag; /* -t flag */
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| 136 | Boolean usePipes; /* !-P flag */
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| 137 | Boolean ignoreErrors; /* -i flag */
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| 138 | Boolean beSilent; /* -s flag */
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| 139 | Boolean beVerbose; /* -v flag */
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| 140 | Boolean oldVars; /* variable substitution style */
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| 141 | Boolean checkEnvFirst; /* -e flag */
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| 142 | Lst envFirstVars; /* (-E) vars to override from env */
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| 143 | static Boolean jobsRunning; /* TRUE if the jobs might be running */
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| 144 |
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| 145 | static void MainParseArgs __P((int, char **));
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| 146 | char * chdir_verify_path __P((char *, char *));
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| 147 | static int ReadMakefile __P((ClientData, ClientData));
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| 148 | static void usage __P((void));
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| 149 |
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| 150 | static char *curdir; /* startup directory */
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| 151 | static char *objdir; /* where we chdir'ed to */
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| 152 |
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| 153 | /*-
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| 154 | * MainParseArgs --
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| 155 | * Parse a given argument vector. Called from main() and from
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| 156 | * Main_ParseArgLine() when the .MAKEFLAGS target is used.
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| 157 | *
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| 158 | * XXX: Deal with command line overriding .MAKEFLAGS in makefile
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| 159 | *
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| 160 | * Results:
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| 161 | * None
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| 162 | *
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| 163 | * Side Effects:
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| 164 | * Various global and local flags will be set depending on the flags
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| 165 | * given
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| 166 | */
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| 167 | static void
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| 168 | MainParseArgs(argc, argv)
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| 169 | int argc;
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| 170 | char **argv;
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| 171 | {
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| 172 | extern int optind;
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| 173 | extern char *optarg;
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| 174 | char *p;
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| 175 | int c;
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| 176 |
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| 177 | optind = 1; /* since we're called more than once */
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| 178 | #ifdef REMOTE
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| 179 | # define OPTFLAGS "BD:E:I:L:PSV:Xd:ef:ij:km:nqrstv"
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| 180 | #else
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| 181 | # define OPTFLAGS "BD:E:I:PSV:Xd:ef:ij:km:nqrstv"
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| 182 | #endif
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| 183 | rearg: while((c = getopt(argc, argv, OPTFLAGS)) != -1) {
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| 184 | switch(c) {
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| 185 | case 'D':
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| 186 | Var_Set(optarg, "1", VAR_GLOBAL);
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| 187 | Var_Append(MAKEFLAGS, "-D", VAR_GLOBAL);
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| 188 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
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| 189 | break;
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| 190 | case 'I':
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| 191 | Parse_AddIncludeDir(optarg);
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| 192 | Var_Append(MAKEFLAGS, "-I", VAR_GLOBAL);
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| 193 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
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| 194 | break;
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| 195 | case 'V':
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| 196 | printVars = TRUE;
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| 197 | (void)Lst_AtEnd(variables, (ClientData)optarg);
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| 198 | Var_Append(MAKEFLAGS, "-V", VAR_GLOBAL);
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| 199 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
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| 200 | break;
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| 201 | case 'X':
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| 202 | expandVars = FALSE;
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| 203 | break;
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| 204 | case 'B':
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| 205 | compatMake = TRUE;
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| 206 | Var_Append(MAKEFLAGS, "-B", VAR_GLOBAL);
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| 207 | break;
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| 208 | #ifdef REMOTE
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| 209 | case 'L': {
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| 210 | char *endptr;
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| 211 |
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| 212 | maxLocal = strtol(optarg, &endptr, 10);
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| 213 | if (maxLocal < 0 || *endptr != '\0') {
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| 214 | warnx("illegal number, -L argument -- %s",
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| 215 | optarg);
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| 216 | usage();
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| 217 | }
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| 218 | Var_Append(MAKEFLAGS, "-L", VAR_GLOBAL);
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| 219 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
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| 220 | break;
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| 221 | }
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| 222 | #endif
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| 223 | case 'P':
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| 224 | usePipes = FALSE;
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| 225 | Var_Append(MAKEFLAGS, "-P", VAR_GLOBAL);
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| 226 | break;
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| 227 | case 'S':
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| 228 | keepgoing = FALSE;
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| 229 | Var_Append(MAKEFLAGS, "-S", VAR_GLOBAL);
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| 230 | break;
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| 231 | case 'd': {
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| 232 | char *modules = optarg;
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| 233 |
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| 234 | for (; *modules; ++modules)
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| 235 | switch (*modules) {
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| 236 | case 'A':
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| 237 | debug = ~0;
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| 238 | break;
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| 239 | case 'a':
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| 240 | debug |= DEBUG_ARCH;
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| 241 | break;
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| 242 | case 'c':
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| 243 | debug |= DEBUG_COND;
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| 244 | break;
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| 245 | case 'd':
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| 246 | debug |= DEBUG_DIR;
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| 247 | break;
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| 248 | case 'f':
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| 249 | debug |= DEBUG_FOR;
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| 250 | break;
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| 251 | case 'g':
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| 252 | if (modules[1] == '1') {
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| 253 | debug |= DEBUG_GRAPH1;
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| 254 | ++modules;
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| 255 | }
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| 256 | else if (modules[1] == '2') {
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| 257 | debug |= DEBUG_GRAPH2;
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| 258 | ++modules;
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| 259 | }
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| 260 | break;
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| 261 | case 'j':
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| 262 | debug |= DEBUG_JOB;
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| 263 | break;
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| 264 | case 'l':
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| 265 | debug |= DEBUG_LOUD;
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| 266 | break;
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| 267 | case 'm':
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| 268 | debug |= DEBUG_MAKE;
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| 269 | break;
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| 270 | case 's':
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| 271 | debug |= DEBUG_SUFF;
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| 272 | break;
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| 273 | case 't':
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| 274 | debug |= DEBUG_TARG;
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| 275 | break;
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| 276 | case 'v':
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| 277 | debug |= DEBUG_VAR;
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| 278 | break;
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| 279 | default:
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| 280 | warnx("illegal argument to d option -- %c", *modules);
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| 281 | usage();
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| 282 | }
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| 283 | Var_Append(MAKEFLAGS, "-d", VAR_GLOBAL);
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| 284 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
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| 285 | break;
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| 286 | }
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| 287 | case 'E':
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| 288 | p = malloc(strlen(optarg) + 1);
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| 289 | if (!p)
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| 290 | Punt("make: cannot allocate memory.");
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| 291 | (void)strcpy(p, optarg);
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| 292 | (void)Lst_AtEnd(envFirstVars, (ClientData)p);
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| 293 | Var_Append(MAKEFLAGS, "-E", VAR_GLOBAL);
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| 294 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
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| 295 | break;
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| 296 | case 'e':
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| 297 | checkEnvFirst = TRUE;
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| 298 | Var_Append(MAKEFLAGS, "-e", VAR_GLOBAL);
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| 299 | break;
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| 300 | case 'f':
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| 301 | (void)Lst_AtEnd(makefiles, (ClientData)optarg);
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| 302 | break;
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| 303 | case 'i':
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| 304 | ignoreErrors = TRUE;
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| 305 | Var_Append(MAKEFLAGS, "-i", VAR_GLOBAL);
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| 306 | break;
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| 307 | case 'j': {
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| 308 | char *endptr;
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| 309 |
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| 310 | forceJobs = TRUE;
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| 311 | maxJobs = strtol(optarg, &endptr, 10);
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| 312 | if (maxJobs <= 0 || *endptr != '\0') {
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| 313 | warnx("illegal number, -j argument -- %s",
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| 314 | optarg);
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| 315 | usage();
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| 316 | }
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| 317 | #ifndef REMOTE
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| 318 | maxLocal = maxJobs;
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| 319 | #endif
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| 320 | Var_Append(MAKEFLAGS, "-j", VAR_GLOBAL);
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| 321 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
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| 322 | break;
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| 323 | }
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| 324 | case 'k':
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| 325 | keepgoing = TRUE;
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| 326 | Var_Append(MAKEFLAGS, "-k", VAR_GLOBAL);
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| 327 | break;
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| 328 | case 'm':
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| 329 | Dir_AddDir(sysIncPath, optarg);
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| 330 | Var_Append(MAKEFLAGS, "-m", VAR_GLOBAL);
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| 331 | Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
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| 332 | break;
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| 333 | case 'n':
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| 334 | noExecute = TRUE;
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| 335 | Var_Append(MAKEFLAGS, "-n", VAR_GLOBAL);
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| 336 | break;
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| 337 | case 'q':
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| 338 | queryFlag = TRUE;
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| 339 | /* Kind of nonsensical, wot? */
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| 340 | Var_Append(MAKEFLAGS, "-q", VAR_GLOBAL);
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| 341 | break;
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| 342 | case 'r':
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| 343 | noBuiltins = TRUE;
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| 344 | Var_Append(MAKEFLAGS, "-r", VAR_GLOBAL);
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| 345 | break;
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| 346 | case 's':
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| 347 | beSilent = TRUE;
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| 348 | Var_Append(MAKEFLAGS, "-s", VAR_GLOBAL);
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| 349 | break;
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| 350 | case 't':
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| 351 | touchFlag = TRUE;
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| 352 | Var_Append(MAKEFLAGS, "-t", VAR_GLOBAL);
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| 353 | break;
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| 354 | case 'v':
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| 355 | beVerbose = TRUE;
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| 356 | Var_Append(MAKEFLAGS, "-v", VAR_GLOBAL);
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| 357 | break;
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| 358 | default:
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| 359 | case '?':
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| 360 | usage();
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| 361 | }
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| 362 | }
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| 363 |
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| 364 | oldVars = TRUE;
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| 365 |
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| 366 | /*
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| 367 | * See if the rest of the arguments are variable assignments and
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| 368 | * perform them if so. Else take them to be targets and stuff them
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| 369 | * on the end of the "create" list.
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| 370 | */
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| 371 | for (argv += optind, argc -= optind; *argv; ++argv, --argc)
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| 372 | if (Parse_IsVar(*argv))
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| 373 | Parse_DoVar(*argv, VAR_CMD);
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| 374 | else {
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| 375 | if (!**argv)
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| 376 | Punt("illegal (null) argument.");
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| 377 | if (**argv == '-') {
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| 378 | if ((*argv)[1])
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| 379 | optind = 0; /* -flag... */
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| 380 | else
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| 381 | optind = 1; /* - */
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| 382 | goto rearg;
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| 383 | }
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| 384 | (void)Lst_AtEnd(create, (ClientData)estrdup(*argv));
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| 385 | }
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| 386 | }
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| 387 |
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| 388 | /*-
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| 389 | * Main_ParseArgLine --
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| 390 | * Used by the parse module when a .MFLAGS or .MAKEFLAGS target
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| 391 | * is encountered and by main() when reading the .MAKEFLAGS envariable.
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| 392 | * Takes a line of arguments and breaks it into its
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| 393 | * component words and passes those words and the number of them to the
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| 394 | * MainParseArgs function.
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| 395 | * The line should have all its leading whitespace removed.
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| 396 | *
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| 397 | * Results:
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| 398 | * None
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| 399 | *
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| 400 | * Side Effects:
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| 401 | * Only those that come from the various arguments.
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| 402 | */
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| 403 | void
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| 404 | Main_ParseArgLine(line)
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| 405 | char *line; /* Line to fracture */
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| 406 | {
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| 407 | char **argv; /* Manufactured argument vector */
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| 408 | int argc; /* Number of arguments in argv */
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| 409 |
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| 410 | if (line == NULL)
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| 411 | return;
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| 412 | for (; *line == ' '; ++line)
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| 413 | continue;
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| 414 | if (!*line)
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| 415 | return;
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| 416 |
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| 417 | argv = brk_string(line, &argc, TRUE);
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| 418 | MainParseArgs(argc, argv);
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| 419 | }
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| 420 |
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| 421 | char *
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| 422 | chdir_verify_path(path, obpath)
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| 423 | char *path;
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| 424 | char *obpath;
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| 425 | {
|
|---|
| 426 | struct stat sb;
|
|---|
| 427 |
|
|---|
| 428 | if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) {
|
|---|
| 429 | if (chdir(path)) {
|
|---|
| 430 | warn("warning: %s", path);
|
|---|
| 431 | return 0;
|
|---|
| 432 | }
|
|---|
| 433 | else {
|
|---|
| 434 | if (path[0] != '/') {
|
|---|
| 435 | (void) snprintf(obpath, MAXPATHLEN, "%s/%s",
|
|---|
| 436 | curdir, path);
|
|---|
| 437 | return obpath;
|
|---|
| 438 | }
|
|---|
| 439 | else
|
|---|
| 440 | return path;
|
|---|
| 441 | }
|
|---|
| 442 | }
|
|---|
| 443 |
|
|---|
| 444 | return 0;
|
|---|
| 445 | }
|
|---|
| 446 |
|
|---|
| 447 |
|
|---|
| 448 | /*-
|
|---|
| 449 | * main --
|
|---|
| 450 | * The main function, for obvious reasons. Initializes variables
|
|---|
| 451 | * and a few modules, then parses the arguments give it in the
|
|---|
| 452 | * environment and on the command line. Reads the system makefile
|
|---|
| 453 | * followed by either Makefile, makefile or the file given by the
|
|---|
| 454 | * -f argument. Sets the .MAKEFLAGS PMake variable based on all the
|
|---|
| 455 | * flags it has received by then uses either the Make or the Compat
|
|---|
| 456 | * module to create the initial list of targets.
|
|---|
| 457 | *
|
|---|
| 458 | * Results:
|
|---|
| 459 | * If -q was given, exits -1 if anything was out-of-date. Else it exits
|
|---|
| 460 | * 0.
|
|---|
| 461 | *
|
|---|
| 462 | * Side Effects:
|
|---|
| 463 | * The program exits when done. Targets are created. etc. etc. etc.
|
|---|
| 464 | */
|
|---|
| 465 | int
|
|---|
| 466 | main(argc, argv)
|
|---|
| 467 | int argc;
|
|---|
| 468 | char **argv;
|
|---|
| 469 | {
|
|---|
| 470 | Lst targs; /* target nodes to create -- passed to Make_Init */
|
|---|
| 471 | Boolean outOfDate = TRUE; /* FALSE if all targets up to date */
|
|---|
| 472 | struct stat sa;
|
|---|
| 473 | char *p, *p1, *path, *pathp;
|
|---|
| 474 | #ifdef WANT_ENV_PWD
|
|---|
| 475 | struct stat sb;
|
|---|
| 476 | char *pwd;
|
|---|
| 477 | #endif
|
|---|
| 478 | char mdpath[MAXPATHLEN + 1];
|
|---|
| 479 | char obpath[MAXPATHLEN + 1];
|
|---|
| 480 | char cdpath[MAXPATHLEN + 1];
|
|---|
| 481 | char *machine = getenv("MACHINE");
|
|---|
| 482 | char *machine_arch = getenv("MACHINE_ARCH");
|
|---|
| 483 | char *machine_cpu = getenv("MACHINE_CPU");
|
|---|
| 484 | Lst sysMkPath; /* Path of sys.mk */
|
|---|
| 485 | char *cp = NULL, *start;
|
|---|
| 486 | /* avoid faults on read-only strings */
|
|---|
| 487 | static char syspath[] = _PATH_DEFSYSPATH;
|
|---|
| 488 |
|
|---|
| 489 | #ifdef RLIMIT_NOFILE
|
|---|
| 490 | /*
|
|---|
| 491 | * get rid of resource limit on file descriptors
|
|---|
| 492 | */
|
|---|
| 493 | {
|
|---|
| 494 | struct rlimit rl;
|
|---|
| 495 | if (getrlimit(RLIMIT_NOFILE, &rl) != -1 &&
|
|---|
| 496 | rl.rlim_cur != rl.rlim_max) {
|
|---|
| 497 | rl.rlim_cur = rl.rlim_max;
|
|---|
| 498 | (void) setrlimit(RLIMIT_NOFILE, &rl);
|
|---|
| 499 | }
|
|---|
| 500 | }
|
|---|
| 501 | #endif
|
|---|
| 502 | /*
|
|---|
| 503 | * Find where we are and take care of PWD for the automounter...
|
|---|
| 504 | * All this code is so that we know where we are when we start up
|
|---|
| 505 | * on a different machine with pmake.
|
|---|
| 506 | */
|
|---|
| 507 | curdir = cdpath;
|
|---|
| 508 | if (getcwd(curdir, MAXPATHLEN) == NULL)
|
|---|
| 509 | err(2, NULL);
|
|---|
| 510 |
|
|---|
| 511 | if (stat(curdir, &sa) == -1)
|
|---|
| 512 | err(2, "%s", curdir);
|
|---|
| 513 |
|
|---|
| 514 | #ifdef WANT_ENV_PWD
|
|---|
| 515 | if ((pwd = getenv("PWD")) != NULL) {
|
|---|
| 516 | if (stat(pwd, &sb) == 0 && sa.st_ino == sb.st_ino &&
|
|---|
| 517 | sa.st_dev == sb.st_dev)
|
|---|
| 518 | (void) strcpy(curdir, pwd);
|
|---|
| 519 | }
|
|---|
| 520 | #endif
|
|---|
| 521 |
|
|---|
| 522 | #if defined(__i386__) && defined(__FreeBSD_version) && \
|
|---|
| 523 | __FreeBSD_version > 300003
|
|---|
| 524 | /*
|
|---|
| 525 | * PC-98 kernel sets the `i386' string to the utsname.machine and
|
|---|
| 526 | * it cannot be distinguished from IBM-PC by uname(3). Therefore,
|
|---|
| 527 | * we check machine.ispc98 and adjust the machine variable before
|
|---|
| 528 | * using usname(3) below.
|
|---|
| 529 | * NOTE: machdep.ispc98 was defined on 1998/8/31. At that time,
|
|---|
| 530 | * __FreeBSD_version was defined as 300003. So, this check can
|
|---|
| 531 | * safely be done with any kernel with version > 300003.
|
|---|
| 532 | */
|
|---|
| 533 | if (!machine) {
|
|---|
| 534 | int ispc98;
|
|---|
| 535 | size_t len;
|
|---|
| 536 |
|
|---|
| 537 | len = sizeof(ispc98);
|
|---|
| 538 | if (!sysctlbyname("machdep.ispc98", &ispc98, &len, NULL, 0)) {
|
|---|
| 539 | if (ispc98)
|
|---|
| 540 | machine = "pc98";
|
|---|
| 541 | }
|
|---|
| 542 | }
|
|---|
| 543 | #endif
|
|---|
| 544 |
|
|---|
| 545 | /*
|
|---|
| 546 | * Get the name of this type of MACHINE from utsname
|
|---|
| 547 | * so we can share an executable for similar machines.
|
|---|
| 548 | * (i.e. m68k: amiga hp300, mac68k, sun3, ...)
|
|---|
| 549 | *
|
|---|
| 550 | * Note that while MACHINE is decided at run-time,
|
|---|
| 551 | * MACHINE_ARCH is always known at compile time.
|
|---|
| 552 | */
|
|---|
| 553 | if (!machine) {
|
|---|
| 554 | #ifndef MACHINE
|
|---|
| 555 | struct utsname utsname;
|
|---|
| 556 |
|
|---|
| 557 | if (uname(&utsname) == -1) {
|
|---|
| 558 | perror("make: uname");
|
|---|
| 559 | exit(2);
|
|---|
| 560 | }
|
|---|
| 561 | machine = utsname.machine;
|
|---|
| 562 | #else
|
|---|
| 563 | machine = MACHINE;
|
|---|
| 564 | #endif
|
|---|
| 565 | }
|
|---|
| 566 |
|
|---|
| 567 | if (!machine_arch) {
|
|---|
| 568 | #ifndef MACHINE_ARCH
|
|---|
| 569 | machine_arch = "unknown";
|
|---|
| 570 | #else
|
|---|
| 571 | machine_arch = MACHINE_ARCH;
|
|---|
| 572 | #endif
|
|---|
| 573 | }
|
|---|
| 574 |
|
|---|
| 575 | /*
|
|---|
| 576 | * Set machine_cpu to the minumum supported CPU revision based
|
|---|
| 577 | * on the target architecture, if not already set.
|
|---|
| 578 | */
|
|---|
| 579 | if (!machine_cpu) {
|
|---|
| 580 | if (!strcmp(machine_arch, "i386"))
|
|---|
| 581 | machine_cpu = "i386";
|
|---|
| 582 | else if (!strcmp(machine_arch, "alpha"))
|
|---|
| 583 | machine_cpu = "ev4";
|
|---|
| 584 | else
|
|---|
| 585 | machine_cpu = "unknown";
|
|---|
| 586 | }
|
|---|
| 587 |
|
|---|
| 588 | /*
|
|---|
| 589 | * The object directory location is determined using the
|
|---|
| 590 | * following order of preference:
|
|---|
| 591 | *
|
|---|
| 592 | * 1. MAKEOBJDIRPREFIX`cwd`
|
|---|
| 593 | * 2. MAKEOBJDIR
|
|---|
| 594 | * 3. _PATH_OBJDIR.${MACHINE}
|
|---|
| 595 | * 4. _PATH_OBJDIR
|
|---|
| 596 | * 5. _PATH_OBJDIRPREFIX`cwd`
|
|---|
| 597 | *
|
|---|
| 598 | * If one of the first two fails, use the current directory.
|
|---|
| 599 | * If the remaining three all fail, use the current directory.
|
|---|
| 600 | *
|
|---|
| 601 | * Once things are initted,
|
|---|
| 602 | * have to add the original directory to the search path,
|
|---|
| 603 | * and modify the paths for the Makefiles apropriately. The
|
|---|
| 604 | * current directory is also placed as a variable for make scripts.
|
|---|
| 605 | */
|
|---|
| 606 | if (!(pathp = getenv("MAKEOBJDIRPREFIX"))) {
|
|---|
| 607 | if (!(path = getenv("MAKEOBJDIR"))) {
|
|---|
| 608 | path = _PATH_OBJDIR;
|
|---|
| 609 | pathp = _PATH_OBJDIRPREFIX;
|
|---|
| 610 | (void) snprintf(mdpath, MAXPATHLEN, "%s.%s",
|
|---|
| 611 | path, machine);
|
|---|
| 612 | if (!(objdir = chdir_verify_path(mdpath, obpath)))
|
|---|
| 613 | if (!(objdir=chdir_verify_path(path, obpath))) {
|
|---|
| 614 | (void) snprintf(mdpath, MAXPATHLEN,
|
|---|
| 615 | "%s%s", pathp, curdir);
|
|---|
| 616 | if (!(objdir=chdir_verify_path(mdpath,
|
|---|
| 617 | obpath)))
|
|---|
| 618 | objdir = curdir;
|
|---|
| 619 | }
|
|---|
| 620 | }
|
|---|
| 621 | else if (!(objdir = chdir_verify_path(path, obpath)))
|
|---|
| 622 | objdir = curdir;
|
|---|
| 623 | }
|
|---|
| 624 | else {
|
|---|
| 625 | (void) snprintf(mdpath, MAXPATHLEN, "%s%s", pathp, curdir);
|
|---|
| 626 | if (!(objdir = chdir_verify_path(mdpath, obpath)))
|
|---|
| 627 | objdir = curdir;
|
|---|
| 628 | }
|
|---|
| 629 |
|
|---|
| 630 | #ifdef WANT_ENV_PWD
|
|---|
| 631 | setenv("PWD", objdir, 1);
|
|---|
| 632 | #endif
|
|---|
| 633 |
|
|---|
| 634 | create = Lst_Init(FALSE);
|
|---|
| 635 | makefiles = Lst_Init(FALSE);
|
|---|
| 636 | envFirstVars = Lst_Init(FALSE);
|
|---|
| 637 | printVars = FALSE;
|
|---|
| 638 | expandVars = TRUE;
|
|---|
| 639 | variables = Lst_Init(FALSE);
|
|---|
| 640 | beSilent = FALSE; /* Print commands as executed */
|
|---|
| 641 | ignoreErrors = FALSE; /* Pay attention to non-zero returns */
|
|---|
| 642 | noExecute = FALSE; /* Execute all commands */
|
|---|
| 643 | keepgoing = FALSE; /* Stop on error */
|
|---|
| 644 | allPrecious = FALSE; /* Remove targets when interrupted */
|
|---|
| 645 | queryFlag = FALSE; /* This is not just a check-run */
|
|---|
| 646 | noBuiltins = FALSE; /* Read the built-in rules */
|
|---|
| 647 | touchFlag = FALSE; /* Actually update targets */
|
|---|
| 648 | usePipes = TRUE; /* Catch child output in pipes */
|
|---|
| 649 | debug = 0; /* No debug verbosity, please. */
|
|---|
| 650 | jobsRunning = FALSE;
|
|---|
| 651 |
|
|---|
| 652 | maxLocal = DEFMAXLOCAL; /* Set default local max concurrency */
|
|---|
| 653 | #ifdef REMOTE
|
|---|
| 654 | maxJobs = DEFMAXJOBS; /* Set default max concurrency */
|
|---|
| 655 | #else
|
|---|
| 656 | maxJobs = maxLocal;
|
|---|
| 657 | #endif
|
|---|
| 658 | forceJobs = FALSE; /* No -j flag */
|
|---|
| 659 | compatMake = FALSE; /* No compat mode */
|
|---|
| 660 |
|
|---|
| 661 |
|
|---|
| 662 | /*
|
|---|
| 663 | * Initialize the parsing, directory and variable modules to prepare
|
|---|
| 664 | * for the reading of inclusion paths and variable settings on the
|
|---|
| 665 | * command line
|
|---|
| 666 | */
|
|---|
| 667 | Dir_Init(); /* Initialize directory structures so -I flags
|
|---|
| 668 | * can be processed correctly */
|
|---|
| 669 | Parse_Init(); /* Need to initialize the paths of #include
|
|---|
| 670 | * directories */
|
|---|
| 671 | Var_Init(); /* As well as the lists of variables for
|
|---|
| 672 | * parsing arguments */
|
|---|
| 673 | str_init();
|
|---|
| 674 | if (objdir != curdir)
|
|---|
| 675 | Dir_AddDir(dirSearchPath, curdir);
|
|---|
| 676 | Var_Set(".CURDIR", curdir, VAR_GLOBAL);
|
|---|
| 677 | Var_Set(".OBJDIR", objdir, VAR_GLOBAL);
|
|---|
| 678 |
|
|---|
| 679 | /*
|
|---|
| 680 | * Initialize various variables.
|
|---|
| 681 | * MAKE also gets this name, for compatibility
|
|---|
| 682 | * .MAKEFLAGS gets set to the empty string just in case.
|
|---|
| 683 | * MFLAGS also gets initialized empty, for compatibility.
|
|---|
| 684 | */
|
|---|
| 685 | Var_Set("MAKE", argv[0], VAR_GLOBAL);
|
|---|
| 686 | Var_Set(MAKEFLAGS, "", VAR_GLOBAL);
|
|---|
| 687 | Var_Set("MFLAGS", "", VAR_GLOBAL);
|
|---|
| 688 | Var_Set("MACHINE", machine, VAR_GLOBAL);
|
|---|
| 689 | Var_Set("MACHINE_ARCH", machine_arch, VAR_GLOBAL);
|
|---|
| 690 | Var_Set("MACHINE_CPU", machine_cpu, VAR_GLOBAL);
|
|---|
| 691 |
|
|---|
| 692 | /*
|
|---|
| 693 | * First snag any flags out of the MAKE environment variable.
|
|---|
| 694 | * (Note this is *not* MAKEFLAGS since /bin/make uses that and it's
|
|---|
| 695 | * in a different format).
|
|---|
| 696 | */
|
|---|
| 697 | #ifdef POSIX
|
|---|
| 698 | Main_ParseArgLine(getenv("MAKEFLAGS"));
|
|---|
| 699 | #else
|
|---|
| 700 | Main_ParseArgLine(getenv("MAKE"));
|
|---|
| 701 | #endif
|
|---|
| 702 |
|
|---|
| 703 | MainParseArgs(argc, argv);
|
|---|
| 704 |
|
|---|
| 705 | /*
|
|---|
| 706 | * Be compatible if user did not specify -j and did not explicitly
|
|---|
| 707 | * turned compatibility on
|
|---|
| 708 | */
|
|---|
| 709 | if (!compatMake && !forceJobs)
|
|---|
| 710 | compatMake = TRUE;
|
|---|
| 711 |
|
|---|
| 712 | /*
|
|---|
| 713 | * Initialize archive, target and suffix modules in preparation for
|
|---|
| 714 | * parsing the makefile(s)
|
|---|
| 715 | */
|
|---|
| 716 | Arch_Init();
|
|---|
| 717 | Targ_Init();
|
|---|
| 718 | Suff_Init();
|
|---|
| 719 |
|
|---|
| 720 | DEFAULT = NILGNODE;
|
|---|
| 721 | (void)time(&now);
|
|---|
| 722 |
|
|---|
| 723 | /*
|
|---|
| 724 | * Set up the .TARGETS variable to contain the list of targets to be
|
|---|
| 725 | * created. If none specified, make the variable empty -- the parser
|
|---|
| 726 | * will fill the thing in with the default or .MAIN target.
|
|---|
| 727 | */
|
|---|
| 728 | if (!Lst_IsEmpty(create)) {
|
|---|
| 729 | LstNode ln;
|
|---|
| 730 |
|
|---|
| 731 | for (ln = Lst_First(create); ln != NILLNODE;
|
|---|
| 732 | ln = Lst_Succ(ln)) {
|
|---|
| 733 | char *name = (char *)Lst_Datum(ln);
|
|---|
| 734 |
|
|---|
| 735 | Var_Append(".TARGETS", name, VAR_GLOBAL);
|
|---|
| 736 | }
|
|---|
| 737 | } else
|
|---|
| 738 | Var_Set(".TARGETS", "", VAR_GLOBAL);
|
|---|
| 739 |
|
|---|
| 740 |
|
|---|
| 741 | /*
|
|---|
| 742 | * If no user-supplied system path was given (through the -m option)
|
|---|
| 743 | * add the directories from the DEFSYSPATH (more than one may be given
|
|---|
| 744 | * as dir1:...:dirn) to the system include path.
|
|---|
| 745 | */
|
|---|
| 746 | if (Lst_IsEmpty(sysIncPath)) {
|
|---|
| 747 | for (start = syspath; *start != '\0'; start = cp) {
|
|---|
| 748 | for (cp = start; *cp != '\0' && *cp != ':'; cp++)
|
|---|
| 749 | continue;
|
|---|
| 750 | if (*cp == '\0') {
|
|---|
| 751 | Dir_AddDir(sysIncPath, start);
|
|---|
| 752 | } else {
|
|---|
| 753 | *cp++ = '\0';
|
|---|
| 754 | Dir_AddDir(sysIncPath, start);
|
|---|
| 755 | }
|
|---|
| 756 | }
|
|---|
| 757 | }
|
|---|
| 758 |
|
|---|
| 759 | /*
|
|---|
| 760 | * Read in the built-in rules first, followed by the specified
|
|---|
| 761 | * makefile, if it was (makefile != (char *) NULL), or the default
|
|---|
| 762 | * Makefile and makefile, in that order, if it wasn't.
|
|---|
| 763 | */
|
|---|
| 764 | if (!noBuiltins) {
|
|---|
| 765 | LstNode ln;
|
|---|
| 766 |
|
|---|
| 767 | sysMkPath = Lst_Init (FALSE);
|
|---|
| 768 | Dir_Expand (_PATH_DEFSYSMK, sysIncPath, sysMkPath);
|
|---|
| 769 | if (Lst_IsEmpty(sysMkPath))
|
|---|
| 770 | Fatal("make: no system rules (%s).", _PATH_DEFSYSMK);
|
|---|
| 771 | ln = Lst_Find(sysMkPath, (ClientData)NULL, ReadMakefile);
|
|---|
| 772 | if (ln != NILLNODE)
|
|---|
| 773 | Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
|
|---|
| 774 | }
|
|---|
| 775 |
|
|---|
| 776 | if (!Lst_IsEmpty(makefiles)) {
|
|---|
| 777 | LstNode ln;
|
|---|
| 778 |
|
|---|
| 779 | ln = Lst_Find(makefiles, (ClientData)NULL, ReadMakefile);
|
|---|
| 780 | if (ln != NILLNODE)
|
|---|
| 781 | Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
|
|---|
| 782 | } else if (!ReadMakefile("makefile", NULL))
|
|---|
| 783 | (void)ReadMakefile("Makefile", NULL);
|
|---|
| 784 |
|
|---|
| 785 | (void)ReadMakefile(".depend", NULL);
|
|---|
| 786 |
|
|---|
| 787 | Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL, &p1), VAR_GLOBAL);
|
|---|
| 788 | efree(p1);
|
|---|
| 789 |
|
|---|
| 790 | /* Install all the flags into the MAKE envariable. */
|
|---|
| 791 | if (((p = Var_Value(MAKEFLAGS, VAR_GLOBAL, &p1)) != NULL) && *p)
|
|---|
| 792 | #ifdef POSIX
|
|---|
| 793 | setenv("MAKEFLAGS", p, 1);
|
|---|
| 794 | #else
|
|---|
| 795 | setenv("MAKE", p, 1);
|
|---|
| 796 | #endif
|
|---|
| 797 | efree(p1);
|
|---|
| 798 |
|
|---|
| 799 | /*
|
|---|
| 800 | * For compatibility, look at the directories in the VPATH variable
|
|---|
| 801 | * and add them to the search path, if the variable is defined. The
|
|---|
| 802 | * variable's value is in the same format as the PATH envariable, i.e.
|
|---|
| 803 | * <directory>:<directory>:<directory>...
|
|---|
| 804 | */
|
|---|
| 805 | if (Var_Exists("VPATH", VAR_CMD)) {
|
|---|
| 806 | char *vpath, *path, *cp, savec;
|
|---|
| 807 | /*
|
|---|
| 808 | * GCC stores string constants in read-only memory, but
|
|---|
| 809 | * Var_Subst will want to write this thing, so store it
|
|---|
| 810 | * in an array
|
|---|
| 811 | */
|
|---|
| 812 | static char VPATH[] = "${VPATH}";
|
|---|
| 813 |
|
|---|
| 814 | vpath = Var_Subst(NULL, VPATH, VAR_CMD, FALSE);
|
|---|
| 815 | path = vpath;
|
|---|
| 816 | do {
|
|---|
| 817 | /* skip to end of directory */
|
|---|
| 818 | for (cp = path; *cp != ':' && *cp != '\0'; cp++)
|
|---|
| 819 | continue;
|
|---|
| 820 | /* Save terminator character so know when to stop */
|
|---|
| 821 | savec = *cp;
|
|---|
| 822 | *cp = '\0';
|
|---|
| 823 | /* Add directory to search path */
|
|---|
| 824 | Dir_AddDir(dirSearchPath, path);
|
|---|
| 825 | *cp = savec;
|
|---|
| 826 | path = cp + 1;
|
|---|
| 827 | } while (savec == ':');
|
|---|
| 828 | (void)free((Address)vpath);
|
|---|
| 829 | }
|
|---|
| 830 |
|
|---|
| 831 | /*
|
|---|
| 832 | * Now that all search paths have been read for suffixes et al, it's
|
|---|
| 833 | * time to add the default search path to their lists...
|
|---|
| 834 | */
|
|---|
| 835 | Suff_DoPaths();
|
|---|
| 836 |
|
|---|
| 837 | /* print the initial graph, if the user requested it */
|
|---|
| 838 | if (DEBUG(GRAPH1))
|
|---|
| 839 | Targ_PrintGraph(1);
|
|---|
| 840 |
|
|---|
| 841 | /* print the values of any variables requested by the user */
|
|---|
| 842 | if (printVars) {
|
|---|
| 843 | LstNode ln;
|
|---|
| 844 |
|
|---|
| 845 | for (ln = Lst_First(variables); ln != NILLNODE;
|
|---|
| 846 | ln = Lst_Succ(ln)) {
|
|---|
| 847 | char *value;
|
|---|
| 848 | if (expandVars) {
|
|---|
| 849 | p1 = malloc(strlen((char *)Lst_Datum(ln)) + 1 + 3);
|
|---|
| 850 | if (!p1)
|
|---|
| 851 | Punt("make: cannot allocate memory.");
|
|---|
| 852 | /* This sprintf is safe, because of the malloc above */
|
|---|
| 853 | (void)sprintf(p1, "${%s}", (char *)Lst_Datum(ln));
|
|---|
| 854 | value = Var_Subst(NULL, p1, VAR_GLOBAL, FALSE);
|
|---|
| 855 | } else {
|
|---|
| 856 | value = Var_Value((char *)Lst_Datum(ln),
|
|---|
| 857 | VAR_GLOBAL, &p1);
|
|---|
| 858 | }
|
|---|
| 859 | printf("%s\n", value ? value : "");
|
|---|
| 860 | if (p1)
|
|---|
| 861 | free(p1);
|
|---|
| 862 | }
|
|---|
| 863 | }
|
|---|
| 864 |
|
|---|
| 865 | /*
|
|---|
| 866 | * Have now read the entire graph and need to make a list of targets
|
|---|
| 867 | * to create. If none was given on the command line, we consult the
|
|---|
| 868 | * parsing module to find the main target(s) to create.
|
|---|
| 869 | */
|
|---|
| 870 | if (Lst_IsEmpty(create))
|
|---|
| 871 | targs = Parse_MainName();
|
|---|
| 872 | else
|
|---|
| 873 | targs = Targ_FindList(create, TARG_CREATE);
|
|---|
| 874 |
|
|---|
| 875 | if (!compatMake && !printVars) {
|
|---|
| 876 | /*
|
|---|
| 877 | * Initialize job module before traversing the graph, now that
|
|---|
| 878 | * any .BEGIN and .END targets have been read. This is done
|
|---|
| 879 | * only if the -q flag wasn't given (to prevent the .BEGIN from
|
|---|
| 880 | * being executed should it exist).
|
|---|
| 881 | */
|
|---|
| 882 | if (!queryFlag) {
|
|---|
| 883 | if (maxLocal == -1)
|
|---|
| 884 | maxLocal = maxJobs;
|
|---|
| 885 | Job_Init(maxJobs, maxLocal);
|
|---|
| 886 | jobsRunning = TRUE;
|
|---|
| 887 | }
|
|---|
| 888 |
|
|---|
| 889 | /* Traverse the graph, checking on all the targets */
|
|---|
| 890 | outOfDate = Make_Run(targs);
|
|---|
| 891 | } else if (!printVars) {
|
|---|
| 892 | /*
|
|---|
| 893 | * Compat_Init will take care of creating all the targets as
|
|---|
| 894 | * well as initializing the module.
|
|---|
| 895 | */
|
|---|
| 896 | Compat_Run(targs);
|
|---|
| 897 | }
|
|---|
| 898 |
|
|---|
| 899 | Lst_Destroy(targs, NOFREE);
|
|---|
| 900 | Lst_Destroy(variables, NOFREE);
|
|---|
| 901 | Lst_Destroy(makefiles, NOFREE);
|
|---|
| 902 | Lst_Destroy(create, (void (*) __P((ClientData))) free);
|
|---|
| 903 |
|
|---|
| 904 | /* print the graph now it's been processed if the user requested it */
|
|---|
| 905 | if (DEBUG(GRAPH2))
|
|---|
| 906 | Targ_PrintGraph(2);
|
|---|
| 907 |
|
|---|
| 908 | Suff_End();
|
|---|
| 909 | Targ_End();
|
|---|
| 910 | Arch_End();
|
|---|
| 911 | str_end();
|
|---|
| 912 | Var_End();
|
|---|
| 913 | Parse_End();
|
|---|
| 914 | Dir_End();
|
|---|
| 915 |
|
|---|
| 916 | if (queryFlag && outOfDate)
|
|---|
| 917 | return(1);
|
|---|
| 918 | else
|
|---|
| 919 | return(0);
|
|---|
| 920 | }
|
|---|
| 921 |
|
|---|
| 922 | /*-
|
|---|
| 923 | * ReadMakefile --
|
|---|
| 924 | * Open and parse the given makefile.
|
|---|
| 925 | *
|
|---|
| 926 | * Results:
|
|---|
| 927 | * TRUE if ok. FALSE if couldn't open file.
|
|---|
| 928 | *
|
|---|
| 929 | * Side Effects:
|
|---|
| 930 | * lots
|
|---|
| 931 | */
|
|---|
| 932 | static Boolean
|
|---|
| 933 | ReadMakefile(p, q)
|
|---|
| 934 | ClientData p, q;
|
|---|
| 935 | {
|
|---|
| 936 | char *fname = p; /* makefile to read */
|
|---|
| 937 | extern Lst parseIncPath;
|
|---|
| 938 | FILE *stream;
|
|---|
| 939 | char *name, path[MAXPATHLEN + 1];
|
|---|
| 940 | char *MAKEFILE;
|
|---|
| 941 | int setMAKEFILE;
|
|---|
| 942 |
|
|---|
| 943 | if (!strcmp(fname, "-")) {
|
|---|
| 944 | Parse_File("(stdin)", stdin);
|
|---|
| 945 | Var_Set("MAKEFILE", "", VAR_GLOBAL);
|
|---|
| 946 | } else {
|
|---|
| 947 | setMAKEFILE = strcmp(fname, ".depend");
|
|---|
| 948 |
|
|---|
| 949 | /* if we've chdir'd, rebuild the path name */
|
|---|
| 950 | if (curdir != objdir && *fname != '/') {
|
|---|
| 951 | (void)snprintf(path, MAXPATHLEN, "%s/%s", curdir, fname);
|
|---|
| 952 | if (realpath(path, path) != NULL &&
|
|---|
| 953 | (stream = fopen(path, "r")) != NULL) {
|
|---|
| 954 | MAKEFILE = fname;
|
|---|
| 955 | fname = path;
|
|---|
| 956 | goto found;
|
|---|
| 957 | }
|
|---|
| 958 | } else if (realpath(fname, path) != NULL) {
|
|---|
| 959 | MAKEFILE = fname;
|
|---|
| 960 | fname = path;
|
|---|
| 961 | if ((stream = fopen(fname, "r")) != NULL)
|
|---|
| 962 | goto found;
|
|---|
| 963 | }
|
|---|
| 964 | /* look in -I and system include directories. */
|
|---|
| 965 | name = Dir_FindFile(fname, parseIncPath);
|
|---|
| 966 | if (!name)
|
|---|
| 967 | name = Dir_FindFile(fname, sysIncPath);
|
|---|
| 968 | if (!name || !(stream = fopen(name, "r")))
|
|---|
| 969 | return(FALSE);
|
|---|
| 970 | MAKEFILE = fname = name;
|
|---|
| 971 | /*
|
|---|
| 972 | * set the MAKEFILE variable desired by System V fans -- the
|
|---|
| 973 | * placement of the setting here means it gets set to the last
|
|---|
| 974 | * makefile specified, as it is set by SysV make.
|
|---|
| 975 | */
|
|---|
| 976 | found:
|
|---|
| 977 | if (setMAKEFILE)
|
|---|
| 978 | Var_Set("MAKEFILE", MAKEFILE, VAR_GLOBAL);
|
|---|
| 979 | Parse_File(fname, stream);
|
|---|
| 980 | (void)fclose(stream);
|
|---|
| 981 | }
|
|---|
| 982 | return(TRUE);
|
|---|
| 983 | }
|
|---|
| 984 |
|
|---|
| 985 | /*-
|
|---|
| 986 | * Cmd_Exec --
|
|---|
| 987 | * Execute the command in cmd, and return the output of that command
|
|---|
| 988 | * in a string.
|
|---|
| 989 | *
|
|---|
| 990 | * Results:
|
|---|
| 991 | * A string containing the output of the command, or the empty string
|
|---|
| 992 | * If err is not NULL, it contains the reason for the command failure
|
|---|
| 993 | *
|
|---|
| 994 | * Side Effects:
|
|---|
| 995 | * The string must be freed by the caller.
|
|---|
| 996 | */
|
|---|
| 997 | char *
|
|---|
| 998 | Cmd_Exec(cmd, err)
|
|---|
| 999 | char *cmd;
|
|---|
| 1000 | char **err;
|
|---|
| 1001 | {
|
|---|
| 1002 | char *args[4]; /* Args for invoking the shell */
|
|---|
| 1003 | int fds[2]; /* Pipe streams */
|
|---|
| 1004 | int cpid; /* Child PID */
|
|---|
| 1005 | int pid; /* PID from wait() */
|
|---|
| 1006 | char *res; /* result */
|
|---|
| 1007 | int status; /* command exit status */
|
|---|
| 1008 | Buffer buf; /* buffer to store the result */
|
|---|
| 1009 | char *cp;
|
|---|
| 1010 | int cc;
|
|---|
| 1011 |
|
|---|
| 1012 |
|
|---|
| 1013 | *err = NULL;
|
|---|
| 1014 |
|
|---|
| 1015 | /*
|
|---|
| 1016 | * Set up arguments for shell
|
|---|
| 1017 | */
|
|---|
| 1018 | args[0] = "sh";
|
|---|
| 1019 | args[1] = "-c";
|
|---|
| 1020 | args[2] = cmd;
|
|---|
| 1021 | args[3] = NULL;
|
|---|
| 1022 |
|
|---|
| 1023 | /*
|
|---|
| 1024 | * Open a pipe for fetching its output
|
|---|
| 1025 | */
|
|---|
| 1026 | if (pipe(fds) == -1) {
|
|---|
| 1027 | *err = "Couldn't create pipe for \"%s\"";
|
|---|
| 1028 | goto bad;
|
|---|
| 1029 | }
|
|---|
| 1030 |
|
|---|
| 1031 | /*
|
|---|
| 1032 | * Fork
|
|---|
| 1033 | */
|
|---|
| 1034 | switch (cpid = vfork()) {
|
|---|
| 1035 | case 0:
|
|---|
| 1036 | /*
|
|---|
| 1037 | * Close input side of pipe
|
|---|
| 1038 | */
|
|---|
| 1039 | (void) close(fds[0]);
|
|---|
| 1040 |
|
|---|
| 1041 | /*
|
|---|
| 1042 | * Duplicate the output stream to the shell's output, then
|
|---|
| 1043 | * shut the extra thing down. Note we don't fetch the error
|
|---|
| 1044 | * stream...why not? Why?
|
|---|
| 1045 | */
|
|---|
| 1046 | (void) dup2(fds[1], 1);
|
|---|
| 1047 | (void) close(fds[1]);
|
|---|
| 1048 |
|
|---|
| 1049 | (void) execv("/bin/sh", args);
|
|---|
| 1050 | _exit(1);
|
|---|
| 1051 | /*NOTREACHED*/
|
|---|
| 1052 |
|
|---|
| 1053 | case -1:
|
|---|
| 1054 | *err = "Couldn't exec \"%s\"";
|
|---|
| 1055 | goto bad;
|
|---|
| 1056 |
|
|---|
| 1057 | default:
|
|---|
| 1058 | /*
|
|---|
| 1059 | * No need for the writing half
|
|---|
| 1060 | */
|
|---|
| 1061 | (void) close(fds[1]);
|
|---|
| 1062 |
|
|---|
| 1063 | buf = Buf_Init (MAKE_BSIZE);
|
|---|
| 1064 |
|
|---|
| 1065 | do {
|
|---|
| 1066 | char result[BUFSIZ];
|
|---|
| 1067 | cc = read(fds[0], result, sizeof(result));
|
|---|
| 1068 | if (cc > 0)
|
|---|
| 1069 | Buf_AddBytes(buf, cc, (Byte *) result);
|
|---|
| 1070 | }
|
|---|
| 1071 | while (cc > 0 || (cc == -1 && errno == EINTR));
|
|---|
| 1072 |
|
|---|
| 1073 | /*
|
|---|
| 1074 | * Close the input side of the pipe.
|
|---|
| 1075 | */
|
|---|
| 1076 | (void) close(fds[0]);
|
|---|
| 1077 |
|
|---|
| 1078 | /*
|
|---|
| 1079 | * Wait for the process to exit.
|
|---|
| 1080 | */
|
|---|
| 1081 | while(((pid = wait(&status)) != cpid) && (pid >= 0))
|
|---|
| 1082 | continue;
|
|---|
| 1083 |
|
|---|
| 1084 | if (cc == -1)
|
|---|
| 1085 | *err = "Error reading shell's output for \"%s\"";
|
|---|
| 1086 |
|
|---|
| 1087 | res = (char *)Buf_GetAll (buf, &cc);
|
|---|
| 1088 | Buf_Destroy (buf, FALSE);
|
|---|
| 1089 |
|
|---|
| 1090 | if (status)
|
|---|
| 1091 | *err = "\"%s\" returned non-zero status";
|
|---|
| 1092 |
|
|---|
| 1093 | /*
|
|---|
| 1094 | * Null-terminate the result, convert newlines to spaces and
|
|---|
| 1095 | * install it in the variable.
|
|---|
| 1096 | */
|
|---|
| 1097 | res[cc] = '\0';
|
|---|
| 1098 | cp = &res[cc] - 1;
|
|---|
| 1099 |
|
|---|
| 1100 | if (*cp == '\n') {
|
|---|
| 1101 | /*
|
|---|
| 1102 | * A final newline is just stripped
|
|---|
| 1103 | */
|
|---|
| 1104 | *cp-- = '\0';
|
|---|
| 1105 | }
|
|---|
| 1106 | while (cp >= res) {
|
|---|
| 1107 | if (*cp == '\n') {
|
|---|
| 1108 | *cp = ' ';
|
|---|
| 1109 | }
|
|---|
| 1110 | cp--;
|
|---|
| 1111 | }
|
|---|
| 1112 | break;
|
|---|
| 1113 | }
|
|---|
| 1114 | return res;
|
|---|
| 1115 | bad:
|
|---|
| 1116 | res = emalloc(1);
|
|---|
| 1117 | *res = '\0';
|
|---|
| 1118 | return res;
|
|---|
| 1119 | }
|
|---|
| 1120 |
|
|---|
| 1121 | /*-
|
|---|
| 1122 | * Error --
|
|---|
| 1123 | * Print an error message given its format.
|
|---|
| 1124 | *
|
|---|
| 1125 | * Results:
|
|---|
| 1126 | * None.
|
|---|
| 1127 | *
|
|---|
| 1128 | * Side Effects:
|
|---|
| 1129 | * The message is printed.
|
|---|
| 1130 | */
|
|---|
| 1131 | /* VARARGS */
|
|---|
| 1132 | void
|
|---|
| 1133 | #ifdef __STDC__
|
|---|
| 1134 | Error(char *fmt, ...)
|
|---|
| 1135 | #else
|
|---|
| 1136 | Error(va_alist)
|
|---|
| 1137 | va_dcl
|
|---|
| 1138 | #endif
|
|---|
| 1139 | {
|
|---|
| 1140 | va_list ap;
|
|---|
| 1141 | #ifdef __STDC__
|
|---|
| 1142 | va_start(ap, fmt);
|
|---|
| 1143 | #else
|
|---|
| 1144 | char *fmt;
|
|---|
| 1145 |
|
|---|
| 1146 | va_start(ap);
|
|---|
| 1147 | fmt = va_arg(ap, char *);
|
|---|
| 1148 | #endif
|
|---|
| 1149 | (void)vfprintf(stderr, fmt, ap);
|
|---|
| 1150 | va_end(ap);
|
|---|
| 1151 | (void)fprintf(stderr, "\n");
|
|---|
| 1152 | (void)fflush(stderr);
|
|---|
| 1153 | }
|
|---|
| 1154 |
|
|---|
| 1155 | /*-
|
|---|
| 1156 | * Fatal --
|
|---|
| 1157 | * Produce a Fatal error message. If jobs are running, waits for them
|
|---|
| 1158 | * to finish.
|
|---|
| 1159 | *
|
|---|
| 1160 | * Results:
|
|---|
| 1161 | * None
|
|---|
| 1162 | *
|
|---|
| 1163 | * Side Effects:
|
|---|
| 1164 | * The program exits
|
|---|
| 1165 | */
|
|---|
| 1166 | /* VARARGS */
|
|---|
| 1167 | void
|
|---|
| 1168 | #ifdef __STDC__
|
|---|
| 1169 | Fatal(char *fmt, ...)
|
|---|
| 1170 | #else
|
|---|
| 1171 | Fatal(va_alist)
|
|---|
| 1172 | va_dcl
|
|---|
| 1173 | #endif
|
|---|
| 1174 | {
|
|---|
| 1175 | va_list ap;
|
|---|
| 1176 | #ifdef __STDC__
|
|---|
| 1177 | va_start(ap, fmt);
|
|---|
| 1178 | #else
|
|---|
| 1179 | char *fmt;
|
|---|
| 1180 |
|
|---|
| 1181 | va_start(ap);
|
|---|
| 1182 | fmt = va_arg(ap, char *);
|
|---|
| 1183 | #endif
|
|---|
| 1184 | if (jobsRunning)
|
|---|
| 1185 | Job_Wait();
|
|---|
| 1186 |
|
|---|
| 1187 | (void)vfprintf(stderr, fmt, ap);
|
|---|
| 1188 | va_end(ap);
|
|---|
| 1189 | (void)fprintf(stderr, "\n");
|
|---|
| 1190 | (void)fflush(stderr);
|
|---|
| 1191 |
|
|---|
| 1192 | if (DEBUG(GRAPH2))
|
|---|
| 1193 | Targ_PrintGraph(2);
|
|---|
| 1194 | exit(2); /* Not 1 so -q can distinguish error */
|
|---|
| 1195 | }
|
|---|
| 1196 |
|
|---|
| 1197 | /*
|
|---|
| 1198 | * Punt --
|
|---|
| 1199 | * Major exception once jobs are being created. Kills all jobs, prints
|
|---|
| 1200 | * a message and exits.
|
|---|
| 1201 | *
|
|---|
| 1202 | * Results:
|
|---|
| 1203 | * None
|
|---|
| 1204 | *
|
|---|
| 1205 | * Side Effects:
|
|---|
| 1206 | * All children are killed indiscriminately and the program Lib_Exits
|
|---|
| 1207 | */
|
|---|
| 1208 | /* VARARGS */
|
|---|
| 1209 | void
|
|---|
| 1210 | #ifdef __STDC__
|
|---|
| 1211 | Punt(char *fmt, ...)
|
|---|
| 1212 | #else
|
|---|
| 1213 | Punt(va_alist)
|
|---|
| 1214 | va_dcl
|
|---|
| 1215 | #endif
|
|---|
| 1216 | {
|
|---|
| 1217 | va_list ap;
|
|---|
| 1218 | #if __STDC__
|
|---|
| 1219 | va_start(ap, fmt);
|
|---|
| 1220 | #else
|
|---|
| 1221 | char *fmt;
|
|---|
| 1222 |
|
|---|
| 1223 | va_start(ap);
|
|---|
| 1224 | fmt = va_arg(ap, char *);
|
|---|
| 1225 | #endif
|
|---|
| 1226 |
|
|---|
| 1227 | (void)fprintf(stderr, "make: ");
|
|---|
| 1228 | (void)vfprintf(stderr, fmt, ap);
|
|---|
| 1229 | va_end(ap);
|
|---|
| 1230 | (void)fprintf(stderr, "\n");
|
|---|
| 1231 | (void)fflush(stderr);
|
|---|
| 1232 |
|
|---|
| 1233 | DieHorribly();
|
|---|
| 1234 | }
|
|---|
| 1235 |
|
|---|
| 1236 | /*-
|
|---|
| 1237 | * DieHorribly --
|
|---|
| 1238 | * Exit without giving a message.
|
|---|
| 1239 | *
|
|---|
| 1240 | * Results:
|
|---|
| 1241 | * None
|
|---|
| 1242 | *
|
|---|
| 1243 | * Side Effects:
|
|---|
| 1244 | * A big one...
|
|---|
| 1245 | */
|
|---|
| 1246 | void
|
|---|
| 1247 | DieHorribly()
|
|---|
| 1248 | {
|
|---|
| 1249 | if (jobsRunning)
|
|---|
| 1250 | Job_AbortAll();
|
|---|
| 1251 | if (DEBUG(GRAPH2))
|
|---|
| 1252 | Targ_PrintGraph(2);
|
|---|
| 1253 | exit(2); /* Not 1, so -q can distinguish error */
|
|---|
| 1254 | }
|
|---|
| 1255 |
|
|---|
| 1256 | /*
|
|---|
| 1257 | * Finish --
|
|---|
| 1258 | * Called when aborting due to errors in child shell to signal
|
|---|
| 1259 | * abnormal exit.
|
|---|
| 1260 | *
|
|---|
| 1261 | * Results:
|
|---|
| 1262 | * None
|
|---|
| 1263 | *
|
|---|
| 1264 | * Side Effects:
|
|---|
| 1265 | * The program exits
|
|---|
| 1266 | */
|
|---|
| 1267 | void
|
|---|
| 1268 | Finish(errors)
|
|---|
| 1269 | int errors; /* number of errors encountered in Make_Make */
|
|---|
| 1270 | {
|
|---|
| 1271 | Fatal("%d error%s", errors, errors == 1 ? "" : "s");
|
|---|
| 1272 | }
|
|---|
| 1273 |
|
|---|
| 1274 | /*
|
|---|
| 1275 | * emalloc --
|
|---|
| 1276 | * malloc, but die on error.
|
|---|
| 1277 | */
|
|---|
| 1278 | void *
|
|---|
| 1279 | emalloc(len)
|
|---|
| 1280 | size_t len;
|
|---|
| 1281 | {
|
|---|
| 1282 | void *p;
|
|---|
| 1283 |
|
|---|
| 1284 | if ((p = malloc(len)) == NULL)
|
|---|
| 1285 | enomem();
|
|---|
| 1286 | return(p);
|
|---|
| 1287 | }
|
|---|
| 1288 |
|
|---|
| 1289 | /*
|
|---|
| 1290 | * estrdup --
|
|---|
| 1291 | * strdup, but die on error.
|
|---|
| 1292 | */
|
|---|
| 1293 | char *
|
|---|
| 1294 | estrdup(str)
|
|---|
| 1295 | const char *str;
|
|---|
| 1296 | {
|
|---|
| 1297 | char *p;
|
|---|
| 1298 |
|
|---|
| 1299 | if ((p = strdup(str)) == NULL)
|
|---|
| 1300 | enomem();
|
|---|
| 1301 | return(p);
|
|---|
| 1302 | }
|
|---|
| 1303 |
|
|---|
| 1304 | /*
|
|---|
| 1305 | * erealloc --
|
|---|
| 1306 | * realloc, but die on error.
|
|---|
| 1307 | */
|
|---|
| 1308 | void *
|
|---|
| 1309 | erealloc(ptr, size)
|
|---|
| 1310 | void *ptr;
|
|---|
| 1311 | size_t size;
|
|---|
| 1312 | {
|
|---|
| 1313 | if ((ptr = realloc(ptr, size)) == NULL)
|
|---|
| 1314 | enomem();
|
|---|
| 1315 | return(ptr);
|
|---|
| 1316 | }
|
|---|
| 1317 |
|
|---|
| 1318 | /*
|
|---|
| 1319 | * enomem --
|
|---|
| 1320 | * die when out of memory.
|
|---|
| 1321 | */
|
|---|
| 1322 | void
|
|---|
| 1323 | enomem()
|
|---|
| 1324 | {
|
|---|
| 1325 | err(2, NULL);
|
|---|
| 1326 | }
|
|---|
| 1327 |
|
|---|
| 1328 | /*
|
|---|
| 1329 | * enunlink --
|
|---|
| 1330 | * Remove a file carefully, avoiding directories.
|
|---|
| 1331 | */
|
|---|
| 1332 | int
|
|---|
| 1333 | eunlink(file)
|
|---|
| 1334 | const char *file;
|
|---|
| 1335 | {
|
|---|
| 1336 | struct stat st;
|
|---|
| 1337 |
|
|---|
| 1338 | if (lstat(file, &st) == -1)
|
|---|
| 1339 | return -1;
|
|---|
| 1340 |
|
|---|
| 1341 | if (S_ISDIR(st.st_mode)) {
|
|---|
| 1342 | errno = EISDIR;
|
|---|
| 1343 | return -1;
|
|---|
| 1344 | }
|
|---|
| 1345 | return unlink(file);
|
|---|
| 1346 | }
|
|---|
| 1347 |
|
|---|
| 1348 | /*
|
|---|
| 1349 | * usage --
|
|---|
| 1350 | * exit with usage message
|
|---|
| 1351 | */
|
|---|
| 1352 | static void
|
|---|
| 1353 | usage()
|
|---|
| 1354 | {
|
|---|
| 1355 | (void)fprintf(stderr, "%s\n%s\n%s\n",
|
|---|
| 1356 | "usage: make [-Beiknqrstv] [-D variable] [-d flags] [-E variable] [-f makefile]",
|
|---|
| 1357 | " [-I directory] [-j max_jobs] [-m directory] [-V variable]",
|
|---|
| 1358 | " [variable=value] [target ...]");
|
|---|
| 1359 | exit(2);
|
|---|
| 1360 | }
|
|---|
| 1361 |
|
|---|
| 1362 |
|
|---|
| 1363 | int
|
|---|
| 1364 | PrintAddr(a, b)
|
|---|
| 1365 | ClientData a;
|
|---|
| 1366 | ClientData b;
|
|---|
| 1367 | {
|
|---|
| 1368 | printf("%lx ", (unsigned long) a);
|
|---|
| 1369 | return b ? 0 : 0;
|
|---|
| 1370 | }
|
|---|