Annotation of src/usr.bin/make/main.c, Revision 1.61
1.46 espie 1: /* $OpenPackages$ */
1.61 ! millert 2: /* $OpenBSD: main.c,v 1.60 2003/04/06 22:47:14 espie Exp $ */
1.12 millert 3: /* $NetBSD: main.c,v 1.34 1997/03/24 20:56:36 gwr Exp $ */
1.1 deraadt 4:
5: /*
1.9 millert 6: * Copyright (c) 1988, 1989, 1990, 1993
7: * The Regents of the University of California. All rights reserved.
1.1 deraadt 8: * Copyright (c) 1989 by Berkeley Softworks
9: * All rights reserved.
10: *
11: * This code is derived from software contributed to Berkeley by
12: * Adam de Boor.
13: *
14: * Redistribution and use in source and binary forms, with or without
15: * modification, are permitted provided that the following conditions
16: * are met:
17: * 1. Redistributions of source code must retain the above copyright
18: * notice, this list of conditions and the following disclaimer.
19: * 2. Redistributions in binary form must reproduce the above copyright
20: * notice, this list of conditions and the following disclaimer in the
21: * documentation and/or other materials provided with the distribution.
22: * 3. All advertising materials mentioning features or use of this software
23: * must display the following acknowledgement:
24: * This product includes software developed by the University of
25: * California, Berkeley and its contributors.
26: * 4. Neither the name of the University nor the names of its contributors
27: * may be used to endorse or promote products derived from this software
28: * without specific prior written permission.
29: *
30: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
31: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
34: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
39: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40: * SUCH DAMAGE.
41: */
42:
1.49 espie 43: #include <sys/param.h>
1.1 deraadt 44: #include <sys/types.h>
45: #include <sys/stat.h>
1.12 millert 46: #ifndef MAKE_BOOTSTRAP
1.1 deraadt 47: #include <sys/utsname.h>
1.9 millert 48: #endif
1.1 deraadt 49: #include <errno.h>
50: #include <stdio.h>
1.49 espie 51: #include <stdlib.h>
1.48 espie 52: #include <string.h>
53: #include <unistd.h>
54: #include "config.h"
55: #include "defines.h"
56: #include "var.h"
57: #include "parse.h"
58: #include "parsevar.h"
1.1 deraadt 59: #include "dir.h"
1.48 espie 60: #include "error.h"
61: #include "pathnames.h"
62: #include "init.h"
1.1 deraadt 63: #include "job.h"
1.48 espie 64: #include "compat.h"
65: #include "targ.h"
66: #include "suff.h"
67: #include "str.h"
68: #include "main.h"
69: #include "lst.h"
70: #include "memory.h"
71: #include "make.h"
1.1 deraadt 72:
1.53 espie 73: #ifndef PATH_MAX
74: # ifdef MAXPATHLEN
75: # define PATH_MAX (MAXPATHLEN+1)
76: # else
77: # define PATH_MAX 1024
78: # endif
79: #endif
80:
1.46 espie 81: #ifndef DEFMAXLOCAL
82: #define DEFMAXLOCAL DEFMAXJOBS
1.4 niklas 83: #endif /* DEFMAXLOCAL */
1.1 deraadt 84:
1.46 espie 85: #define MAKEFLAGS ".MAKEFLAGS"
1.1 deraadt 86:
1.48 espie 87: static LIST to_create; /* Targets to be made */
88: Lst create = &to_create;
1.1 deraadt 89: GNode *DEFAULT; /* .DEFAULT node */
1.48 espie 90: bool allPrecious; /* .PRECIOUS given on line by itself */
1.1 deraadt 91:
1.48 espie 92: static bool noBuiltins; /* -r flag */
1.33 espie 93: static LIST makefiles; /* ordered list of makefiles to read */
1.48 espie 94: static LIST varstoprint; /* list of variables to print */
1.2 deraadt 95: int maxJobs; /* -j argument */
1.1 deraadt 96: static int maxLocal; /* -L argument */
1.48 espie 97: bool compatMake; /* -B argument */
98: bool debug; /* -d flag */
99: bool noExecute; /* -n flag */
100: bool keepgoing; /* -k flag */
101: bool queryFlag; /* -q flag */
102: bool touchFlag; /* -t flag */
103: bool usePipes; /* !-P flag */
104: bool ignoreErrors; /* -i flag */
105: bool beSilent; /* -s flag */
106: bool oldVars; /* variable substitution style */
107: bool checkEnvFirst; /* -e flag */
1.1 deraadt 108:
1.46 espie 109: static void MainParseArgs(int, char **);
1.53 espie 110: static char * chdir_verify_path(char *);
1.46 espie 111: static int ReadMakefile(void *, void *);
112: static void add_dirpath(Lst, const char *);
113: static void usage(void);
114: static void posixParseOptLetter(int);
1.48 espie 115: static void record_option(int, const char *);
1.1 deraadt 116:
117: static char *curdir; /* startup directory */
118: static char *objdir; /* where we chdir'ed to */
119:
1.46 espie 120:
1.48 espie 121: static void record_option(c, arg)
122: int c;
123: const char *arg;
124: {
125: char opt[3];
126:
127: opt[0] = '-';
128: opt[1] = c;
129: opt[2] = '\0';
130: Var_Append(MAKEFLAGS, opt, VAR_GLOBAL);
131: if (arg != NULL)
132: Var_Append(MAKEFLAGS, arg, VAR_GLOBAL);
133: }
134:
1.39 espie 135: static void
136: posixParseOptLetter(c)
1.46 espie 137: int c;
1.39 espie 138: {
139: switch(c) {
140: case 'B':
1.48 espie 141: compatMake = true;
142: return; /* XXX don't pass to submakes. */
1.39 espie 143: case 'P':
1.48 espie 144: usePipes = false;
1.39 espie 145: break;
146: case 'S':
1.48 espie 147: keepgoing = false;
1.39 espie 148: break;
149: case 'e':
1.48 espie 150: checkEnvFirst = true;
1.39 espie 151: break;
152: case 'i':
1.48 espie 153: ignoreErrors = true;
1.39 espie 154: break;
155: case 'k':
1.48 espie 156: keepgoing = true;
1.39 espie 157: break;
158: case 'n':
1.48 espie 159: noExecute = true;
1.39 espie 160: break;
161: case 'q':
1.48 espie 162: queryFlag = true;
1.39 espie 163: /* Kind of nonsensical, wot? */
164: break;
165: case 'r':
1.48 espie 166: noBuiltins = true;
1.39 espie 167: break;
168: case 's':
1.48 espie 169: beSilent = true;
1.39 espie 170: break;
171: case 't':
1.48 espie 172: touchFlag = true;
1.39 espie 173: break;
174: default:
175: case '?':
176: usage();
177: }
1.48 espie 178: record_option(c, NULL);
1.39 espie 179: }
180:
1.1 deraadt 181: /*-
182: * MainParseArgs --
183: * Parse a given argument vector. Called from main() and from
184: * Main_ParseArgLine() when the .MAKEFLAGS target is used.
185: *
186: * XXX: Deal with command line overriding .MAKEFLAGS in makefile
187: *
188: * Side Effects:
189: * Various global and local flags will be set depending on the flags
190: * given
191: */
192: static void
193: MainParseArgs(argc, argv)
194: int argc;
195: char **argv;
196: {
1.61 ! millert 197: int c, optend;
1.2 deraadt 198: int forceJobs = 0;
1.1 deraadt 199:
1.58 millert 200: #define OPTFLAGS "BD:I:PSV:d:ef:ij:km:nqrst"
201: #define OPTLETTERS "BPSiknqrst"
202:
1.1 deraadt 203: optind = 1; /* since we're called more than once */
1.58 millert 204: optreset = 1;
1.61 ! millert 205: optend = 0;
1.58 millert 206: while (optind < argc) {
1.61 ! millert 207: if (!optend && argv[optind][0] == '-') {
! 208: if (argv[optind][1] == '\0')
! 209: optind++; /* ignore "-" */
! 210: else if (argv[optind][1] == '-' &&
! 211: argv[optind][2] == '\0') {
! 212: optind++; /* ignore "--" */
! 213: optend++; /* "--" denotes end of flags */
! 214: }
! 215: }
! 216: c = optend ? -1 : getopt(argc, argv, OPTFLAGS);
! 217: switch (c) {
1.1 deraadt 218: case 'D':
219: Var_Set(optarg, "1", VAR_GLOBAL);
1.48 espie 220: record_option(c, optarg);
1.1 deraadt 221: break;
222: case 'I':
223: Parse_AddIncludeDir(optarg);
1.48 espie 224: record_option(c, optarg);
1.1 deraadt 225: break;
1.9 millert 226: case 'V':
1.48 espie 227: Lst_AtEnd(&varstoprint, optarg);
228: record_option(c, optarg);
1.9 millert 229: break;
1.1 deraadt 230: case 'd': {
231: char *modules = optarg;
232:
233: for (; *modules; ++modules)
234: switch (*modules) {
235: case 'A':
236: debug = ~0;
237: break;
238: case 'a':
239: debug |= DEBUG_ARCH;
240: break;
241: case 'c':
242: debug |= DEBUG_COND;
243: break;
244: case 'd':
245: debug |= DEBUG_DIR;
246: break;
247: case 'f':
248: debug |= DEBUG_FOR;
249: break;
250: case 'g':
251: if (modules[1] == '1') {
252: debug |= DEBUG_GRAPH1;
253: ++modules;
254: }
255: else if (modules[1] == '2') {
256: debug |= DEBUG_GRAPH2;
257: ++modules;
258: }
259: break;
260: case 'j':
261: debug |= DEBUG_JOB;
262: break;
1.46 espie 263: case 'l':
264: debug |= DEBUG_LOUD;
265: break;
1.1 deraadt 266: case 'm':
267: debug |= DEBUG_MAKE;
268: break;
269: case 's':
270: debug |= DEBUG_SUFF;
271: break;
272: case 't':
273: debug |= DEBUG_TARG;
274: break;
275: case 'v':
276: debug |= DEBUG_VAR;
277: break;
278: default:
279: (void)fprintf(stderr,
280: "make: illegal argument to d option -- %c\n",
281: *modules);
282: usage();
283: }
1.48 espie 284: record_option(c, optarg);
1.1 deraadt 285: break;
286: }
287: case 'f':
1.33 espie 288: Lst_AtEnd(&makefiles, optarg);
1.1 deraadt 289: break;
1.15 espie 290: case 'j': {
291: char *endptr;
292:
1.48 espie 293: forceJobs = true;
1.15 espie 294: maxJobs = strtol(optarg, &endptr, 0);
295: if (endptr == optarg) {
296: fprintf(stderr,
297: "make: illegal argument to -j option -- %s -- not a number\n",
298: optarg);
299: usage();
300: }
1.1 deraadt 301: maxJobs = atoi(optarg);
1.2 deraadt 302: maxLocal = maxJobs;
1.48 espie 303: record_option(c, optarg);
1.1 deraadt 304: break;
1.15 espie 305: }
1.5 niklas 306: case 'm':
1.48 espie 307: Dir_AddDir(sysIncPath, optarg);
308: record_option(c, optarg);
1.5 niklas 309: break;
1.58 millert 310: case -1:
311: /* Check for variable assignments and targets. */
1.59 millert 312: if (argv[optind] != NULL &&
313: !Parse_DoVar(argv[optind], VAR_CMD)) {
1.58 millert 314: if (!*argv[optind])
315: Punt("illegal (null) argument.");
1.61 ! millert 316: Lst_AtEnd(create, estrdup(argv[optind]));
1.58 millert 317: }
318: optind++; /* skip over non-option */
319: break;
1.1 deraadt 320: default:
1.39 espie 321: posixParseOptLetter(c);
1.1 deraadt 322: }
323: }
324:
1.2 deraadt 325: /*
326: * Be compatible if user did not specify -j and did not explicitly
1.48 espie 327: * turn compatibility on
1.2 deraadt 328: */
329: if (!compatMake && !forceJobs)
1.48 espie 330: compatMake = true;
1.2 deraadt 331:
1.48 espie 332: oldVars = true;
1.1 deraadt 333: }
334:
335: /*-
336: * Main_ParseArgLine --
1.46 espie 337: * Used by the parse module when a .MFLAGS or .MAKEFLAGS target
1.1 deraadt 338: * is encountered and by main() when reading the .MAKEFLAGS envariable.
339: * Takes a line of arguments and breaks it into its
1.46 espie 340: * component words and passes those words and the number of them to the
1.1 deraadt 341: * MainParseArgs function.
342: * The line should have all its leading whitespace removed.
343: *
344: * Side Effects:
345: * Only those that come from the various arguments.
346: */
347: void
348: Main_ParseArgLine(line)
1.48 espie 349: const char *line; /* Line to fracture */
1.1 deraadt 350: {
351: char **argv; /* Manufactured argument vector */
352: int argc; /* Number of arguments in argv */
1.14 espie 353: char *args; /* Space used by the args */
1.19 espie 354: char *buf;
1.39 espie 355: char *argv0;
1.48 espie 356: const char *s;
1.60 espie 357: size_t len;
1.1 deraadt 358:
1.46 espie 359:
1.1 deraadt 360: if (line == NULL)
361: return;
362: for (; *line == ' '; ++line)
363: continue;
364: if (!*line)
365: return;
366:
1.39 espie 367: /* POSIX rule: MAKEFLAGS can hold a set of option letters without
368: * any blanks or dashes. */
369: for (s = line;; s++) {
370: if (*s == '\0') {
1.46 espie 371: while (line != s)
1.39 espie 372: posixParseOptLetter(*line++);
373: return;
1.46 espie 374: }
1.39 espie 375: if (strchr(OPTLETTERS, *s) == NULL)
376: break;
377: }
1.46 espie 378: argv0 = Var_Value(".MAKE");
1.60 espie 379: len = strlen(line) + strlen(argv0) + 2;
380: buf = emalloc(len);
381: (void)snprintf(buf, len, "%s %s", argv0, line);
1.14 espie 382:
1.46 espie 383: argv = brk_string(buf, &argc, &args);
1.14 espie 384: free(buf);
1.1 deraadt 385: MainParseArgs(argc, argv);
1.14 espie 386:
387: free(args);
388: free(argv);
1.1 deraadt 389: }
390:
1.9 millert 391: char *
1.53 espie 392: chdir_verify_path(path)
1.46 espie 393: char *path;
1.9 millert 394: {
1.46 espie 395: struct stat sb;
1.9 millert 396:
1.46 espie 397: if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) {
398: if (chdir(path)) {
399: (void)fprintf(stderr, "make warning: %s: %s.\n",
400: path, strerror(errno));
401: return NULL;
402: } else {
1.53 espie 403: if (path[0] != '/')
404: return Str_concat(curdir, path, '/');
1.46 espie 405: else
1.53 espie 406: return estrdup(path);
1.9 millert 407: }
1.46 espie 408: }
1.9 millert 409:
1.46 espie 410: return NULL;
1.9 millert 411: }
412:
1.46 espie 413:
1.42 espie 414: /* Add a :-separated path to a Lst of directories. */
415: static void
416: add_dirpath(l, n)
417: Lst l;
1.46 espie 418: const char *n;
1.42 espie 419: {
420: const char *start;
421: const char *cp;
422:
423: for (start = n;;) {
424: for (cp = start; *cp != '\0' && *cp != ':';)
425: cp++;
1.48 espie 426: Dir_AddDiri(l, start, cp);
1.42 espie 427: if (*cp == '\0')
428: break;
429: else
430: start= cp+1;
431: }
432: }
433:
1.46 espie 434: int main(int, char **);
1.1 deraadt 435: /*-
436: * main --
437: * The main function, for obvious reasons. Initializes variables
438: * and a few modules, then parses the arguments give it in the
439: * environment and on the command line. Reads the system makefile
440: * followed by either Makefile, makefile or the file given by the
441: * -f argument. Sets the .MAKEFLAGS PMake variable based on all the
442: * flags it has received by then uses either the Make or the Compat
443: * module to create the initial list of targets.
444: *
445: * Results:
446: * If -q was given, exits -1 if anything was out-of-date. Else it exits
447: * 0.
448: *
449: * Side Effects:
450: * The program exits when done. Targets are created. etc. etc. etc.
451: */
452: int
453: main(argc, argv)
454: int argc;
455: char **argv;
456: {
1.56 espie 457: static LIST targs; /* target nodes to create */
1.48 espie 458: bool outOfDate = true; /* false if all targets up to date */
1.1 deraadt 459: struct stat sb, sa;
1.19 espie 460: char *p, *path, *pathp, *pwd;
1.53 espie 461: char *mdpath;
1.46 espie 462: char *machine = getenv("MACHINE");
1.12 millert 463: char *machine_arch = getenv("MACHINE_ARCH");
1.48 espie 464: const char *syspath = _PATH_DEFSYSPATH;
1.46 espie 465:
1.2 deraadt 466: #ifdef RLIMIT_NOFILE
467: /*
468: * get rid of resource limit on file descriptors
469: */
470: {
471: struct rlimit rl;
472: if (getrlimit(RLIMIT_NOFILE, &rl) != -1 &&
473: rl.rlim_cur != rl.rlim_max) {
474: rl.rlim_cur = rl.rlim_max;
1.46 espie 475: (void)setrlimit(RLIMIT_NOFILE, &rl);
1.2 deraadt 476: }
477: }
478: #endif
1.1 deraadt 479: /*
480: * Find where we are and take care of PWD for the automounter...
481: * All this code is so that we know where we are when we start up
482: * on a different machine with pmake.
483: */
1.53 espie 484: if ((curdir = dogetcwd()) == NULL) {
1.1 deraadt 485: (void)fprintf(stderr, "make: %s.\n", strerror(errno));
486: exit(2);
487: }
488:
489: if (stat(curdir, &sa) == -1) {
490: (void)fprintf(stderr, "make: %s: %s.\n",
491: curdir, strerror(errno));
492: exit(2);
493: }
494:
495: if ((pwd = getenv("PWD")) != NULL) {
496: if (stat(pwd, &sb) == 0 && sa.st_ino == sb.st_ino &&
1.53 espie 497: sa.st_dev == sb.st_dev) {
498: free(curdir);
499: curdir = estrdup(pwd);
500: }
1.1 deraadt 501: }
502:
503: /*
504: * Get the name of this type of MACHINE from utsname
505: * so we can share an executable for similar machines.
506: * (i.e. m68k: amiga hp300, mac68k, sun3, ...)
507: *
1.12 millert 508: * Note that both MACHINE and MACHINE_ARCH are decided at
509: * run-time.
1.1 deraadt 510: */
1.12 millert 511: if (!machine) {
512: #ifndef MAKE_BOOTSTRAP
1.9 millert 513: struct utsname utsname;
514:
1.2 deraadt 515: if (uname(&utsname) == -1) {
1.1 deraadt 516: perror("make: uname");
517: exit(2);
518: }
519: machine = utsname.machine;
1.6 niklas 520: #else
521: machine = MACHINE;
522: #endif
1.1 deraadt 523: }
524:
1.12 millert 525: if (!machine_arch) {
526: #ifndef MACHINE_ARCH
527: machine_arch = "unknown"; /* XXX: no uname -p yet */
528: #else
529: machine_arch = MACHINE_ARCH;
530: #endif
531: }
532:
1.1 deraadt 533: /*
1.9 millert 534: * If the MAKEOBJDIR (or by default, the _PATH_OBJDIR) directory
535: * exists, change into it and build there. (If a .${MACHINE} suffix
536: * exists, use that directory instead).
537: * Otherwise check MAKEOBJDIRPREFIX`cwd` (or by default,
538: * _PATH_OBJDIRPREFIX`cwd`) and build there if it exists.
539: * If all fails, use the current directory to build.
540: *
541: * Once things are initted,
542: * have to add the original directory to the search path,
1.1 deraadt 543: * and modify the paths for the Makefiles apropriately. The
544: * current directory is also placed as a variable for make scripts.
545: */
1.53 espie 546: mdpath = NULL;
1.9 millert 547: if (!(pathp = getenv("MAKEOBJDIRPREFIX"))) {
548: if (!(path = getenv("MAKEOBJDIR"))) {
549: path = _PATH_OBJDIR;
550: pathp = _PATH_OBJDIRPREFIX;
1.53 espie 551: mdpath = Str_concat(path, machine, '.');
552: if (!(objdir = chdir_verify_path(mdpath)))
553: if (!(objdir=chdir_verify_path(path))) {
554: free(mdpath);
555: mdpath = Str_concat(pathp, curdir, 0);
556: if (!(objdir=chdir_verify_path(mdpath)))
1.9 millert 557: objdir = curdir;
558: }
559: }
1.53 espie 560: else if (!(objdir = chdir_verify_path(path)))
1.1 deraadt 561: objdir = curdir;
562: }
563: else {
1.53 espie 564: mdpath = Str_concat(pathp, curdir, 0);
565: if (!(objdir = chdir_verify_path(mdpath)))
1.1 deraadt 566: objdir = curdir;
567: }
1.53 espie 568: free(mdpath);
1.1 deraadt 569:
1.44 espie 570: esetenv("PWD", objdir);
1.30 espie 571: unsetenv("CDPATH");
1.1 deraadt 572:
1.56 espie 573: Static_Lst_Init(create);
574: Static_Lst_Init(&makefiles);
575: Static_Lst_Init(&varstoprint);
576: Static_Lst_Init(&targs);
1.52 espie 577:
1.48 espie 578: beSilent = false; /* Print commands as executed */
579: ignoreErrors = false; /* Pay attention to non-zero returns */
580: noExecute = false; /* Execute all commands */
581: keepgoing = false; /* Stop on error */
582: allPrecious = false; /* Remove targets when interrupted */
583: queryFlag = false; /* This is not just a check-run */
584: noBuiltins = false; /* Read the built-in rules */
585: touchFlag = false; /* Actually update targets */
586: usePipes = true; /* Catch child output in pipes */
1.1 deraadt 587: debug = 0; /* No debug verbosity, please. */
588:
1.46 espie 589: maxLocal = DEFMAXLOCAL; /* Set default local max concurrency */
1.2 deraadt 590: maxJobs = maxLocal;
1.48 espie 591: compatMake = false; /* No compat mode */
1.9 millert 592:
1.1 deraadt 593:
594: /*
1.48 espie 595: * Initialize all external modules.
1.1 deraadt 596: */
1.48 espie 597: Init();
598:
1.1 deraadt 599: if (objdir != curdir)
1.48 espie 600: Dir_AddDir(dirSearchPath, curdir);
1.1 deraadt 601: Var_Set(".CURDIR", curdir, VAR_GLOBAL);
602: Var_Set(".OBJDIR", objdir, VAR_GLOBAL);
603:
604: /*
605: * Initialize various variables.
606: * MAKE also gets this name, for compatibility
607: * .MAKEFLAGS gets set to the empty string just in case.
608: * MFLAGS also gets initialized empty, for compatibility.
609: */
610: Var_Set("MAKE", argv[0], VAR_GLOBAL);
1.14 espie 611: Var_Set(".MAKE", argv[0], VAR_GLOBAL);
1.1 deraadt 612: Var_Set(MAKEFLAGS, "", VAR_GLOBAL);
613: Var_Set("MFLAGS", "", VAR_GLOBAL);
614: Var_Set("MACHINE", machine, VAR_GLOBAL);
1.12 millert 615: Var_Set("MACHINE_ARCH", machine_arch, VAR_GLOBAL);
1.1 deraadt 616:
617: /*
1.46 espie 618: * First snag any flags out of the MAKEFLAGS environment variable.
1.1 deraadt 619: */
620: Main_ParseArgLine(getenv("MAKEFLAGS"));
1.9 millert 621:
1.1 deraadt 622: MainParseArgs(argc, argv);
1.30 espie 623:
1.46 espie 624: /* And set up everything for sub-makes */
1.39 espie 625: Var_AddCmdline(MAKEFLAGS);
1.46 espie 626:
1.1 deraadt 627:
1.25 espie 628: DEFAULT = NULL;
1.1 deraadt 629:
630: /*
631: * Set up the .TARGETS variable to contain the list of targets to be
632: * created. If none specified, make the variable empty -- the parser
633: * will fill the thing in with the default or .MAIN target.
634: */
1.48 espie 635: if (!Lst_IsEmpty(create)) {
1.1 deraadt 636: LstNode ln;
637:
1.48 espie 638: for (ln = Lst_First(create); ln != NULL; ln = Lst_Adv(ln)) {
1.1 deraadt 639: char *name = (char *)Lst_Datum(ln);
640:
641: Var_Append(".TARGETS", name, VAR_GLOBAL);
642: }
643: } else
644: Var_Set(".TARGETS", "", VAR_GLOBAL);
645:
1.5 niklas 646:
647: /*
648: * If no user-supplied system path was given (through the -m option)
649: * add the directories from the DEFSYSPATH (more than one may be given
650: * as dir1:...:dirn) to the system include path.
651: */
1.48 espie 652: if (Lst_IsEmpty(sysIncPath))
653: add_dirpath(sysIncPath, syspath);
1.5 niklas 654:
1.1 deraadt 655: /*
1.5 niklas 656: * Read in the built-in rules first, followed by the specified
1.48 espie 657: * makefile(s), or the default BSDmakefile, Makefile or
658: * makefile, in that order.
1.1 deraadt 659: */
1.5 niklas 660: if (!noBuiltins) {
661: LstNode ln;
1.46 espie 662: LIST sysMkPath; /* Path of sys.mk */
1.5 niklas 663:
1.33 espie 664: Lst_Init(&sysMkPath);
1.48 espie 665: Dir_Expand(_PATH_DEFSYSMK, sysIncPath, &sysMkPath);
1.33 espie 666: if (Lst_IsEmpty(&sysMkPath))
1.5 niklas 667: Fatal("make: no system rules (%s).", _PATH_DEFSYSMK);
1.33 espie 668: ln = Lst_Find(&sysMkPath, ReadMakefile, NULL);
1.25 espie 669: if (ln != NULL)
1.5 niklas 670: Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
1.34 espie 671: #ifdef CLEANUP
672: Lst_Destroy(&sysMkPath, (SimpleProc)free);
673: #endif
1.5 niklas 674: }
1.1 deraadt 675:
1.33 espie 676: if (!Lst_IsEmpty(&makefiles)) {
1.1 deraadt 677: LstNode ln;
678:
1.33 espie 679: ln = Lst_Find(&makefiles, ReadMakefile, NULL);
1.25 espie 680: if (ln != NULL)
1.1 deraadt 681: Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
1.13 niklas 682: } else if (!ReadMakefile("BSDmakefile", NULL))
683: if (!ReadMakefile("makefile", NULL))
684: (void)ReadMakefile("Makefile", NULL);
1.1 deraadt 685:
1.48 espie 686: /* Always read a .depend file, if it exists. */
1.9 millert 687: (void)ReadMakefile(".depend", NULL);
1.1 deraadt 688:
1.46 espie 689: Var_Append("MFLAGS", Var_Value(MAKEFLAGS),
690: VAR_GLOBAL);
1.1 deraadt 691:
1.46 espie 692: /* Install all the flags into the MAKEFLAGS env variable. */
693: if (((p = Var_Value(MAKEFLAGS)) != NULL) && *p)
1.44 espie 694: esetenv("MAKEFLAGS", p);
1.1 deraadt 695:
696: /*
697: * For compatibility, look at the directories in the VPATH variable
698: * and add them to the search path, if the variable is defined. The
699: * variable's value is in the same format as the PATH envariable, i.e.
700: * <directory>:<directory>:<directory>...
701: */
1.46 espie 702: if (Var_Value("VPATH") != NULL) {
703: char *vpath;
1.1 deraadt 704:
1.48 espie 705: vpath = Var_Subst("${VPATH}", NULL, false);
706: add_dirpath(dirSearchPath, vpath);
1.46 espie 707: (void)free(vpath);
1.1 deraadt 708: }
709:
1.46 espie 710: /* Now that all search paths have been read for suffixes et al, it's
711: * time to add the default search path to their lists... */
1.1 deraadt 712: Suff_DoPaths();
713:
1.46 espie 714: /* Print the initial graph, if the user requested it. */
1.1 deraadt 715: if (DEBUG(GRAPH1))
716: Targ_PrintGraph(1);
717:
1.46 espie 718: /* Print the values of any variables requested by the user. */
1.48 espie 719: if (!Lst_IsEmpty(&varstoprint)) {
720: LstNode ln;
1.9 millert 721:
1.48 espie 722: for (ln = Lst_First(&varstoprint); ln != NULL; ln = Lst_Adv(ln)) {
723: char *value = Var_Value((char *)Lst_Datum(ln));
1.9 millert 724:
1.48 espie 725: printf("%s\n", value ? value : "");
726: }
727: } else {
728: /* Have now read the entire graph and need to make a list of targets
729: * to create. If none was given on the command line, we consult the
730: * parsing module to find the main target(s) to create. */
731: if (Lst_IsEmpty(create))
1.34 espie 732: Parse_MainName(&targs);
1.48 espie 733: else
734: Targ_FindList(&targs, create);
1.1 deraadt 735:
1.48 espie 736: if (compatMake)
737: /* Compat_Init will take care of creating all the targets as
738: * well as initializing the module. */
739: Compat_Run(&targs);
740: else {
1.46 espie 741: /* Initialize job module before traversing the graph, now that
742: * any .BEGIN and .END targets have been read. This is done
1.1 deraadt 743: * only if the -q flag wasn't given (to prevent the .BEGIN from
1.46 espie 744: * being executed should it exist). */
1.1 deraadt 745: if (!queryFlag) {
746: if (maxLocal == -1)
747: maxLocal = maxJobs;
748: Job_Init(maxJobs, maxLocal);
749: }
750:
1.46 espie 751: /* Traverse the graph, checking on all the targets. */
1.34 espie 752: outOfDate = Make_Run(&targs);
1.48 espie 753: }
1.9 millert 754: }
755:
1.52 espie 756: #ifdef CLEANUP
1.34 espie 757: Lst_Destroy(&targs, NOFREE);
1.48 espie 758: Lst_Destroy(&varstoprint, NOFREE);
1.33 espie 759: Lst_Destroy(&makefiles, NOFREE);
1.48 espie 760: Lst_Destroy(create, (SimpleProc)free);
1.52 espie 761: #endif
1.1 deraadt 762:
763: /* print the graph now it's been processed if the user requested it */
764: if (DEBUG(GRAPH2))
765: Targ_PrintGraph(2);
766:
1.53 espie 767: #ifdef CLEANUP
768: if (objdir != curdir)
769: free(objdir);
770: free(curdir);
771: #endif
1.1 deraadt 772: if (queryFlag && outOfDate)
1.46 espie 773: return 1;
1.1 deraadt 774: else
1.46 espie 775: return 0;
1.1 deraadt 776: }
777:
778: /*-
779: * ReadMakefile --
780: * Open and parse the given makefile.
781: *
782: * Results:
1.48 espie 783: * true if ok. false if couldn't open file.
1.1 deraadt 784: *
785: * Side Effects:
786: * lots
787: */
1.48 espie 788: static bool
1.9 millert 789: ReadMakefile(p, q)
1.46 espie 790: void * p;
791: void * q UNUSED;
1.1 deraadt 792: {
1.9 millert 793: char *fname = p; /* makefile to read */
1.1 deraadt 794: FILE *stream;
1.53 espie 795: char *name;
1.1 deraadt 796:
797: if (!strcmp(fname, "-")) {
1.46 espie 798: Var_Set("MAKEFILE", "", VAR_GLOBAL);
1.37 espie 799: Parse_File(estrdup("(stdin)"), stdin);
1.1 deraadt 800: } else {
801: if ((stream = fopen(fname, "r")) != NULL)
802: goto found;
803: /* if we've chdir'd, rebuild the path name */
804: if (curdir != objdir && *fname != '/') {
1.53 espie 805: char *path;
806:
807: path = Str_concat(curdir, fname, '/');
808: if ((stream = fopen(path, "r")) == NULL)
809: free(path);
810: else {
811: fname = path;
812: goto found;
1.1 deraadt 813: }
814: }
815: /* look in -I and system include directories. */
1.48 espie 816: name = Dir_FindFile(fname, parseIncPath);
1.1 deraadt 817: if (!name)
1.48 espie 818: name = Dir_FindFile(fname, sysIncPath);
1.1 deraadt 819: if (!name || !(stream = fopen(name, "r")))
1.48 espie 820: return false;
1.1 deraadt 821: fname = name;
822: /*
823: * set the MAKEFILE variable desired by System V fans -- the
824: * placement of the setting here means it gets set to the last
825: * makefile specified, as it is set by SysV make.
826: */
827: found: Var_Set("MAKEFILE", fname, VAR_GLOBAL);
828: Parse_File(fname, stream);
829: }
1.48 espie 830: return true;
1.1 deraadt 831: }
832:
1.46 espie 833:
1.1 deraadt 834: /*
835: * usage --
836: * exit with usage message
837: */
838: static void
839: usage()
840: {
841: (void)fprintf(stderr,
1.9 millert 842: "usage: make [-Beiknqrst] [-D variable] [-d flags] [-f makefile ]\n\
1.46 espie 843: [-I directory] [-j max_jobs] [-m directory] [-V variable]\n\
844: [variable=value] [target ...]\n");
1.1 deraadt 845: exit(2);
846: }
847:
848:
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