Annotation of src/usr.bin/make/main.c, Revision 1.99
1.99 ! espie 1: /* $OpenBSD: main.c,v 1.98 2012/10/06 09:32:40 espie Exp $ */
1.12 millert 2: /* $NetBSD: main.c,v 1.34 1997/03/24 20:56:36 gwr Exp $ */
1.1 deraadt 3:
4: /*
1.9 millert 5: * Copyright (c) 1988, 1989, 1990, 1993
6: * The Regents of the University of California. All rights reserved.
1.1 deraadt 7: * Copyright (c) 1989 by Berkeley Softworks
8: * All rights reserved.
9: *
10: * This code is derived from software contributed to Berkeley by
11: * Adam de Boor.
12: *
13: * Redistribution and use in source and binary forms, with or without
14: * modification, are permitted provided that the following conditions
15: * are met:
16: * 1. Redistributions of source code must retain the above copyright
17: * notice, this list of conditions and the following disclaimer.
18: * 2. Redistributions in binary form must reproduce the above copyright
19: * notice, this list of conditions and the following disclaimer in the
20: * documentation and/or other materials provided with the distribution.
1.62 millert 21: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 22: * may be used to endorse or promote products derived from this software
23: * without specific prior written permission.
24: *
25: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35: * SUCH DAMAGE.
36: */
37:
1.49 espie 38: #include <sys/param.h>
1.1 deraadt 39: #include <sys/types.h>
40: #include <sys/stat.h>
1.12 millert 41: #ifndef MAKE_BOOTSTRAP
1.1 deraadt 42: #include <sys/utsname.h>
1.9 millert 43: #endif
1.1 deraadt 44: #include <errno.h>
45: #include <stdio.h>
1.49 espie 46: #include <stdlib.h>
1.48 espie 47: #include <string.h>
48: #include <unistd.h>
49: #include "config.h"
50: #include "defines.h"
51: #include "var.h"
1.96 espie 52: #include "lowparse.h"
1.48 espie 53: #include "parse.h"
54: #include "parsevar.h"
1.1 deraadt 55: #include "dir.h"
1.78 espie 56: #include "direxpand.h"
1.48 espie 57: #include "error.h"
58: #include "pathnames.h"
59: #include "init.h"
1.1 deraadt 60: #include "job.h"
1.48 espie 61: #include "compat.h"
62: #include "targ.h"
63: #include "suff.h"
64: #include "str.h"
65: #include "main.h"
66: #include "lst.h"
67: #include "memory.h"
68: #include "make.h"
1.96 espie 69: #include "dump.h"
1.1 deraadt 70:
1.53 espie 71: #ifndef PATH_MAX
72: # ifdef MAXPATHLEN
73: # define PATH_MAX (MAXPATHLEN+1)
74: # else
75: # define PATH_MAX 1024
76: # endif
77: #endif
78:
1.84 espie 79:
1.46 espie 80: #define MAKEFLAGS ".MAKEFLAGS"
1.1 deraadt 81:
1.48 espie 82: static LIST to_create; /* Targets to be made */
83: Lst create = &to_create;
84: bool allPrecious; /* .PRECIOUS given on line by itself */
1.1 deraadt 85:
1.48 espie 86: static bool noBuiltins; /* -r flag */
1.33 espie 87: static LIST makefiles; /* ordered list of makefiles to read */
1.48 espie 88: static LIST varstoprint; /* list of variables to print */
1.2 deraadt 89: int maxJobs; /* -j argument */
1.48 espie 90: bool compatMake; /* -B argument */
1.86 espie 91: static bool forceJobs = false;
1.63 espie 92: int debug; /* -d flag */
1.48 espie 93: bool noExecute; /* -n flag */
94: bool keepgoing; /* -k flag */
95: bool queryFlag; /* -q flag */
96: bool touchFlag; /* -t flag */
97: bool ignoreErrors; /* -i flag */
98: bool beSilent; /* -s flag */
1.96 espie 99: bool dumpData; /* -p flag */
1.1 deraadt 100:
1.75 espie 101: struct dirs {
102: char *current;
103: char *object;
104: };
105:
106: static void MainParseArgs(int, char **);
107: static void add_dirpath(Lst, const char *);
108: static void usage(void);
109: static void posixParseOptLetter(int);
110: static void record_option(int, const char *);
111:
112: static char *figure_out_MACHINE(void);
113: static char *figure_out_MACHINE_ARCH(void);
1.93 miod 114: static char *figure_out_MACHINE_CPU(void);
1.75 espie 115:
116: static char *chdir_verify_path(const char *, struct dirs *);
117: static char *concat_verify(const char *, const char *, char, struct dirs *);
118: static char *figure_out_CURDIR(void);
119: static void setup_CURDIR_OBJDIR(struct dirs *, const char *);
120:
121: static void setup_VPATH(void);
122:
1.89 espie 123: static void read_all_make_rules(bool, bool, Lst, struct dirs *);
1.75 espie 124: static void read_makefile_list(Lst, struct dirs *);
125: static int ReadMakefile(void *, void *);
1.1 deraadt 126:
1.64 espie 127: static void record_option(int c, const char *arg)
1.48 espie 128: {
129: char opt[3];
130:
1.75 espie 131: opt[0] = '-';
132: opt[1] = c;
133: opt[2] = '\0';
1.76 espie 134: Var_Append(MAKEFLAGS, opt);
1.75 espie 135: if (arg != NULL)
1.76 espie 136: Var_Append(MAKEFLAGS, arg);
1.48 espie 137: }
138:
1.39 espie 139: static void
1.64 espie 140: posixParseOptLetter(int c)
1.39 espie 141: {
142: switch(c) {
143: case 'B':
1.48 espie 144: compatMake = true;
145: return; /* XXX don't pass to submakes. */
1.39 espie 146: case 'P':
1.82 espie 147: break; /* old option */
1.39 espie 148: case 'S':
1.48 espie 149: keepgoing = false;
1.39 espie 150: break;
151: case 'e':
1.70 espie 152: Var_setCheckEnvFirst(true);
1.39 espie 153: break;
154: case 'i':
1.48 espie 155: ignoreErrors = true;
1.39 espie 156: break;
157: case 'k':
1.48 espie 158: keepgoing = true;
1.39 espie 159: break;
160: case 'n':
1.48 espie 161: noExecute = true;
1.39 espie 162: break;
1.96 espie 163: case 'p':
164: dumpData = true;
165: break;
1.39 espie 166: case 'q':
1.48 espie 167: queryFlag = true;
1.39 espie 168: /* Kind of nonsensical, wot? */
169: break;
170: case 'r':
1.48 espie 171: noBuiltins = true;
1.39 espie 172: break;
173: case 's':
1.48 espie 174: beSilent = true;
1.39 espie 175: break;
176: case 't':
1.48 espie 177: touchFlag = true;
1.39 espie 178: break;
179: default:
180: case '?':
181: usage();
182: }
1.48 espie 183: record_option(c, NULL);
1.39 espie 184: }
185:
1.1 deraadt 186: /*-
187: * MainParseArgs --
188: * Parse a given argument vector. Called from main() and from
189: * Main_ParseArgLine() when the .MAKEFLAGS target is used.
190: *
191: * XXX: Deal with command line overriding .MAKEFLAGS in makefile
192: *
193: * Side Effects:
194: * Various global and local flags will be set depending on the flags
195: * given
196: */
197: static void
1.64 espie 198: MainParseArgs(int argc, char **argv)
1.1 deraadt 199: {
1.61 millert 200: int c, optend;
1.1 deraadt 201:
1.96 espie 202: #define OPTFLAGS "BD:I:PSV:d:ef:ij:km:npqrst"
203: #define OPTLETTERS "BPSiknpqrst"
1.58 millert 204:
1.1 deraadt 205: optind = 1; /* since we're called more than once */
1.58 millert 206: optreset = 1;
1.61 millert 207: optend = 0;
1.58 millert 208: while (optind < argc) {
1.61 millert 209: if (!optend && argv[optind][0] == '-') {
210: if (argv[optind][1] == '\0')
211: optind++; /* ignore "-" */
212: else if (argv[optind][1] == '-' &&
213: argv[optind][2] == '\0') {
214: optind++; /* ignore "--" */
215: optend++; /* "--" denotes end of flags */
216: }
217: }
218: c = optend ? -1 : getopt(argc, argv, OPTFLAGS);
219: switch (c) {
1.1 deraadt 220: case 'D':
1.76 espie 221: Var_Set(optarg, "1");
1.48 espie 222: record_option(c, optarg);
1.1 deraadt 223: break;
224: case 'I':
225: Parse_AddIncludeDir(optarg);
1.48 espie 226: record_option(c, optarg);
1.1 deraadt 227: break;
1.9 millert 228: case 'V':
1.48 espie 229: Lst_AtEnd(&varstoprint, optarg);
230: record_option(c, optarg);
1.9 millert 231: break;
1.1 deraadt 232: case 'd': {
233: char *modules = optarg;
234:
235: for (; *modules; ++modules)
236: switch (*modules) {
237: case 'A':
238: debug = ~0;
239: break;
240: case 'a':
241: debug |= DEBUG_ARCH;
242: break;
243: case 'c':
244: debug |= DEBUG_COND;
245: break;
246: case 'd':
247: debug |= DEBUG_DIR;
248: break;
1.99 ! espie 249: case 'D':
! 250: debug |= DEBUG_DOUBLE;
! 251: break;
1.96 espie 252: case 'e':
253: debug |= DEBUG_EXPENSIVE;
254: break;
1.1 deraadt 255: case 'f':
256: debug |= DEBUG_FOR;
257: break;
258: case 'g':
259: if (modules[1] == '1') {
260: debug |= DEBUG_GRAPH1;
261: ++modules;
262: }
263: else if (modules[1] == '2') {
264: debug |= DEBUG_GRAPH2;
265: ++modules;
266: }
267: break;
1.99 ! espie 268: case 'h':
! 269: debug |= DEBUG_HELDJOBS;
! 270: break;
1.1 deraadt 271: case 'j':
1.98 espie 272: debug |= DEBUG_JOB | DEBUG_KILL;
1.1 deraadt 273: break;
1.87 espie 274: case 'J':
1.96 espie 275: /* ignore */
1.98 espie 276: break;
277: case 'k':
278: debug |= DEBUG_KILL;
1.87 espie 279: break;
1.46 espie 280: case 'l':
281: debug |= DEBUG_LOUD;
282: break;
1.1 deraadt 283: case 'm':
284: debug |= DEBUG_MAKE;
1.92 espie 285: break;
286: case 'n':
287: debug |= DEBUG_NAME_MATCHING;
1.1 deraadt 288: break;
1.90 espie 289: case 'p':
290: debug |= DEBUG_PARALLEL;
291: break;
1.96 espie 292: case 'q':
293: debug |= DEBUG_QUICKDEATH;
294: break;
1.1 deraadt 295: case 's':
296: debug |= DEBUG_SUFF;
297: break;
298: case 't':
299: debug |= DEBUG_TARG;
1.99 ! espie 300: break;
! 301: case 'T':
! 302: debug |= DEBUG_TARGGROUP;
1.1 deraadt 303: break;
304: case 'v':
305: debug |= DEBUG_VAR;
306: break;
307: default:
308: (void)fprintf(stderr,
1.67 jmc 309: "make: illegal argument to -d option -- %c\n",
1.1 deraadt 310: *modules);
311: usage();
312: }
1.48 espie 313: record_option(c, optarg);
1.1 deraadt 314: break;
315: }
316: case 'f':
1.33 espie 317: Lst_AtEnd(&makefiles, optarg);
1.1 deraadt 318: break;
1.15 espie 319: case 'j': {
320: char *endptr;
321:
1.48 espie 322: forceJobs = true;
1.15 espie 323: maxJobs = strtol(optarg, &endptr, 0);
324: if (endptr == optarg) {
325: fprintf(stderr,
326: "make: illegal argument to -j option -- %s -- not a number\n",
327: optarg);
328: usage();
329: }
1.48 espie 330: record_option(c, optarg);
1.1 deraadt 331: break;
1.15 espie 332: }
1.5 niklas 333: case 'm':
1.81 espie 334: Dir_AddDir(systemIncludePath, optarg);
1.48 espie 335: record_option(c, optarg);
1.5 niklas 336: break;
1.58 millert 337: case -1:
338: /* Check for variable assignments and targets. */
1.59 millert 339: if (argv[optind] != NULL &&
1.70 espie 340: !Parse_CmdlineVar(argv[optind])) {
1.58 millert 341: if (!*argv[optind])
342: Punt("illegal (null) argument.");
1.61 millert 343: Lst_AtEnd(create, estrdup(argv[optind]));
1.58 millert 344: }
345: optind++; /* skip over non-option */
346: break;
1.1 deraadt 347: default:
1.39 espie 348: posixParseOptLetter(c);
1.1 deraadt 349: }
350: }
351:
352: }
353:
354: /*-
355: * Main_ParseArgLine --
1.46 espie 356: * Used by the parse module when a .MFLAGS or .MAKEFLAGS target
1.1 deraadt 357: * is encountered and by main() when reading the .MAKEFLAGS envariable.
358: * Takes a line of arguments and breaks it into its
1.46 espie 359: * component words and passes those words and the number of them to the
1.1 deraadt 360: * MainParseArgs function.
361: * The line should have all its leading whitespace removed.
362: *
363: * Side Effects:
364: * Only those that come from the various arguments.
365: */
366: void
1.64 espie 367: Main_ParseArgLine(const char *line) /* Line to fracture */
1.1 deraadt 368: {
369: char **argv; /* Manufactured argument vector */
370: int argc; /* Number of arguments in argv */
1.14 espie 371: char *args; /* Space used by the args */
1.19 espie 372: char *buf;
1.39 espie 373: char *argv0;
1.48 espie 374: const char *s;
1.60 espie 375: size_t len;
1.1 deraadt 376:
1.46 espie 377:
1.1 deraadt 378: if (line == NULL)
379: return;
380: for (; *line == ' '; ++line)
381: continue;
382: if (!*line)
383: return;
384:
1.39 espie 385: /* POSIX rule: MAKEFLAGS can hold a set of option letters without
386: * any blanks or dashes. */
387: for (s = line;; s++) {
388: if (*s == '\0') {
1.46 espie 389: while (line != s)
1.39 espie 390: posixParseOptLetter(*line++);
391: return;
1.46 espie 392: }
1.39 espie 393: if (strchr(OPTLETTERS, *s) == NULL)
394: break;
395: }
1.46 espie 396: argv0 = Var_Value(".MAKE");
1.60 espie 397: len = strlen(line) + strlen(argv0) + 2;
398: buf = emalloc(len);
399: (void)snprintf(buf, len, "%s %s", argv0, line);
1.14 espie 400:
1.46 espie 401: argv = brk_string(buf, &argc, &args);
1.14 espie 402: free(buf);
1.1 deraadt 403: MainParseArgs(argc, argv);
1.14 espie 404:
405: free(args);
406: free(argv);
1.1 deraadt 407: }
408:
1.75 espie 409: /* Add a :-separated path to a Lst of directories. */
410: static void
411: add_dirpath(Lst l, const char *n)
1.9 millert 412: {
1.75 espie 413: const char *start;
414: const char *cp;
1.9 millert 415:
1.75 espie 416: for (start = n;;) {
417: for (cp = start; *cp != '\0' && *cp != ':';)
418: cp++;
419: Dir_AddDiri(l, start, cp);
420: if (*cp == '\0')
421: break;
422: else
423: start= cp+1;
1.9 millert 424: }
425: }
426:
1.75 espie 427: /*
1.80 espie 428: * Get the name of this type of MACHINE from utsname so we can share an
1.75 espie 429: * executable for similar machines. (i.e. m68k: amiga hp300, mac68k, sun3, ...)
430: *
1.93 miod 431: * Note that MACHINE, MACHINE_ARCH and MACHINE_CPU are decided at
1.75 espie 432: * run-time.
433: */
434: static char *
435: figure_out_MACHINE()
1.42 espie 436: {
1.75 espie 437: char *r = getenv("MACHINE");
438: if (r == NULL) {
439: #ifndef MAKE_BOOTSTRAP
440: static struct utsname utsname;
1.42 espie 441:
1.75 espie 442: if (uname(&utsname) == -1) {
443: perror("make: uname");
444: exit(2);
445: }
446: r = utsname.machine;
447: #else
448: r = MACHINE;
449: #endif
450: }
451: return r;
1.42 espie 452: }
453:
1.75 espie 454: static char *
455: figure_out_MACHINE_ARCH()
1.1 deraadt 456: {
1.75 espie 457: char *r = getenv("MACHINE_ARCH");
458: if (r == NULL) {
459: #ifndef MACHINE_ARCH
460: r = "unknown"; /* XXX: no uname -p yet */
461: #else
462: r = MACHINE_ARCH;
463: #endif
464: }
465: return r;
466: }
1.93 miod 467: static char *
468: figure_out_MACHINE_CPU()
469: {
470: char *r = getenv("MACHINE_CPU");
471: if (r == NULL) {
472: #if !defined(MACHINE_CPU) && ! defined(MACHINE_ARCH)
473: r = "unknown"; /* XXX: no uname -p yet */
474: #else
475: #if defined(MACHINE_CPU)
476: r = MACHINE_CPU;
477: #else
478: r = MACHINE_ARCH;
479: #endif
480: #endif
481: }
482: return r;
483: }
1.46 espie 484:
1.75 espie 485: static char *
486: figure_out_CURDIR()
487: {
488: char *dir, *cwd;
489: struct stat sa, sb;
490:
491: /* curdir is cwd... */
492: cwd = dogetcwd();
493: if (cwd == NULL) {
1.1 deraadt 494: (void)fprintf(stderr, "make: %s.\n", strerror(errno));
495: exit(2);
496: }
497:
1.75 espie 498: if (stat(cwd, &sa) == -1) {
499: (void)fprintf(stderr, "make: %s: %s.\n", cwd, strerror(errno));
500: exit(2);
1.1 deraadt 501: }
502:
1.80 espie 503: /* ...but we can use the alias $PWD if we can prove it is the same
1.75 espie 504: * directory */
505: if ((dir = getenv("PWD")) != NULL) {
506: if (stat(dir, &sb) == 0 && sa.st_ino == sb.st_ino &&
1.91 espie 507: sa.st_dev == sb.st_dev) {
1.75 espie 508: free(cwd);
509: return estrdup(dir);
1.91 espie 510: }
1.1 deraadt 511: }
512:
1.75 espie 513: return cwd;
514: }
515:
516: static char *
517: chdir_verify_path(const char *path, struct dirs *d)
518: {
519: struct stat sb;
1.9 millert 520:
1.75 espie 521: if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) {
522: if (chdir(path)) {
523: (void)fprintf(stderr, "make warning: %s: %s.\n",
524: path, strerror(errno));
525: return NULL;
526: } else {
527: if (path[0] != '/')
528: return Str_concat(d->current, path, '/');
529: else
530: return estrdup(path);
531: }
1.1 deraadt 532: }
533:
1.75 espie 534: return NULL;
535: }
536:
537: static char *
538: concat_verify(const char *p1, const char *p2, char c, struct dirs *d)
539: {
540: char *tmp = Str_concat(p1, p2, c);
541: char *result = chdir_verify_path(tmp, d);
542: free(tmp);
543: return result;
544: }
545:
546: static void
547: setup_CURDIR_OBJDIR(struct dirs *d, const char *machine)
548: {
549: char *path, *prefix;
1.12 millert 550:
1.75 espie 551: d->current = figure_out_CURDIR();
552: d->object = NULL;
1.1 deraadt 553: /*
1.9 millert 554: * If the MAKEOBJDIR (or by default, the _PATH_OBJDIR) directory
555: * exists, change into it and build there. (If a .${MACHINE} suffix
556: * exists, use that directory instead).
557: * Otherwise check MAKEOBJDIRPREFIX`cwd` (or by default,
558: * _PATH_OBJDIRPREFIX`cwd`) and build there if it exists.
559: * If all fails, use the current directory to build.
560: *
561: * Once things are initted,
562: * have to add the original directory to the search path,
1.66 jolan 563: * and modify the paths for the Makefiles appropriately. The
1.1 deraadt 564: * current directory is also placed as a variable for make scripts.
565: */
1.75 espie 566: if ((prefix = getenv("MAKEOBJDIRPREFIX")) != NULL) {
567: d->object = concat_verify(prefix, d->current, 0, d);
568: } else if ((path = getenv("MAKEOBJDIR")) != NULL) {
569: d->object = chdir_verify_path(path, d);
570: } else {
571: path = _PATH_OBJDIR;
572: prefix = _PATH_OBJDIRPREFIX;
573: d->object = concat_verify(path, machine, '.', d);
574: if (!d->object)
575: d->object=chdir_verify_path(path, d);
576: if (!d->object)
577: d->object = concat_verify(prefix, d->current, 0, d);
578: }
579: if (d->object == NULL)
580: d->object = d->current;
581: }
582:
583: /*
584: * if the VPATH variable is defined, add its contents to the search path.
585: * Uses the same format as the PATH env variable, i.e.,
586: * <directory>:<directory>:<directory>...
587: */
588: static void
589: setup_VPATH()
590: {
591: if (Var_Value("VPATH") != NULL) {
592: char *vpath;
593:
594: vpath = Var_Subst("${VPATH}", NULL, false);
1.79 espie 595: add_dirpath(defaultPath, vpath);
1.75 espie 596: (void)free(vpath);
1.1 deraadt 597: }
1.75 espie 598: }
599:
600: static void
601: read_makefile_list(Lst mk, struct dirs *d)
602: {
603: LstNode ln;
604: ln = Lst_Find(mk, ReadMakefile, d);
605: if (ln != NULL)
606: Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
607: }
608:
609: static void
1.89 espie 610: read_all_make_rules(bool noBuiltins, bool read_depend,
611: Lst makefiles, struct dirs *d)
1.75 espie 612: {
613: /*
614: * Read in the built-in rules first, followed by the specified
615: * makefile(s), or the default BSDmakefile, Makefile or
616: * makefile, in that order.
617: */
618: if (!noBuiltins) {
619: LIST sysMkPath; /* Path of sys.mk */
620:
621: Lst_Init(&sysMkPath);
1.81 espie 622: Dir_Expand(_PATH_DEFSYSMK, systemIncludePath, &sysMkPath);
1.75 espie 623: if (Lst_IsEmpty(&sysMkPath))
624: Fatal("make: no system rules (%s).", _PATH_DEFSYSMK);
625:
626: read_makefile_list(&sysMkPath, d);
1.1 deraadt 627: }
628:
1.75 espie 629: if (!Lst_IsEmpty(makefiles)) {
630: read_makefile_list(makefiles, d);
631: } else if (!ReadMakefile("BSDmakefile", d))
632: if (!ReadMakefile("makefile", d))
633: (void)ReadMakefile("Makefile", d);
634:
1.89 espie 635: /* read a .depend file, if it exists, and we're not building depend */
1.94 espie 636:
1.89 espie 637: if (read_depend)
638: (void)ReadMakefile(".depend", d);
1.75 espie 639: }
640:
641:
642: int main(int, char **);
643: /*-
644: * main --
645: * The main function, for obvious reasons. Initializes variables
646: * and a few modules, then parses the arguments give it in the
647: * environment and on the command line. Reads the system makefile
648: * followed by either Makefile, makefile or the file given by the
649: * -f argument. Sets the .MAKEFLAGS PMake variable based on all the
650: * flags it has received by then uses either the Make or the Compat
651: * module to create the initial list of targets.
652: *
653: * Results:
654: * If -q was given, exits -1 if anything was out-of-date. Else it exits
655: * 0.
656: *
657: * Side Effects:
658: * The program exits when done. Targets are created. etc. etc. etc.
659: */
660: int
661: main(int argc, char **argv)
662: {
663: static LIST targs; /* target nodes to create */
664: bool outOfDate = true; /* false if all targets up to date */
665: char *machine = figure_out_MACHINE();
666: char *machine_arch = figure_out_MACHINE_ARCH();
1.93 miod 667: char *machine_cpu = figure_out_MACHINE_CPU();
1.75 espie 668: const char *syspath = _PATH_DEFSYSPATH;
669: char *p;
670: static struct dirs d;
1.89 espie 671: bool read_depend = true;/* false if we don't want to read .depend */
1.75 espie 672:
673: setup_CURDIR_OBJDIR(&d, machine);
674:
675: esetenv("PWD", d.object);
1.30 espie 676: unsetenv("CDPATH");
1.1 deraadt 677:
1.56 espie 678: Static_Lst_Init(create);
679: Static_Lst_Init(&makefiles);
680: Static_Lst_Init(&varstoprint);
681: Static_Lst_Init(&targs);
1.52 espie 682:
1.48 espie 683: beSilent = false; /* Print commands as executed */
684: ignoreErrors = false; /* Pay attention to non-zero returns */
685: noExecute = false; /* Execute all commands */
686: keepgoing = false; /* Stop on error */
687: allPrecious = false; /* Remove targets when interrupted */
688: queryFlag = false; /* This is not just a check-run */
689: noBuiltins = false; /* Read the built-in rules */
690: touchFlag = false; /* Actually update targets */
1.1 deraadt 691: debug = 0; /* No debug verbosity, please. */
692:
1.85 espie 693: maxJobs = DEFMAXJOBS;
1.48 espie 694: compatMake = false; /* No compat mode */
1.9 millert 695:
1.1 deraadt 696:
697: /*
1.48 espie 698: * Initialize all external modules.
1.1 deraadt 699: */
1.48 espie 700: Init();
701:
1.75 espie 702: if (d.object != d.current)
1.79 espie 703: Dir_AddDir(defaultPath, d.current);
1.76 espie 704: Var_Set(".CURDIR", d.current);
705: Var_Set(".OBJDIR", d.object);
1.96 espie 706: Parse_setcurdir(d.current);
1.87 espie 707: Targ_setdirs(d.current, d.object);
1.1 deraadt 708:
709: /*
710: * Initialize various variables.
711: * MAKE also gets this name, for compatibility
712: * .MAKEFLAGS gets set to the empty string just in case.
713: * MFLAGS also gets initialized empty, for compatibility.
714: */
1.76 espie 715: Var_Set("MAKE", argv[0]);
716: Var_Set(".MAKE", argv[0]);
717: Var_Set(MAKEFLAGS, "");
718: Var_Set("MFLAGS", "");
719: Var_Set("MACHINE", machine);
720: Var_Set("MACHINE_ARCH", machine_arch);
1.93 miod 721: Var_Set("MACHINE_CPU", machine_cpu);
1.1 deraadt 722:
723: /*
1.46 espie 724: * First snag any flags out of the MAKEFLAGS environment variable.
1.1 deraadt 725: */
726: Main_ParseArgLine(getenv("MAKEFLAGS"));
1.9 millert 727:
1.1 deraadt 728: MainParseArgs(argc, argv);
1.86 espie 729:
730: /*
1.97 espie 731: * Be compatible if user did not specify -j
1.86 espie 732: */
1.97 espie 733: if (!forceJobs)
1.86 espie 734: compatMake = true;
1.30 espie 735:
1.46 espie 736: /* And set up everything for sub-makes */
1.39 espie 737: Var_AddCmdline(MAKEFLAGS);
1.46 espie 738:
1.1 deraadt 739:
740: /*
741: * Set up the .TARGETS variable to contain the list of targets to be
742: * created. If none specified, make the variable empty -- the parser
743: * will fill the thing in with the default or .MAIN target.
744: */
1.48 espie 745: if (!Lst_IsEmpty(create)) {
1.1 deraadt 746: LstNode ln;
747:
1.48 espie 748: for (ln = Lst_First(create); ln != NULL; ln = Lst_Adv(ln)) {
1.1 deraadt 749: char *name = (char *)Lst_Datum(ln);
750:
1.89 espie 751: if (strcmp(name, "depend") == 0)
752: read_depend = false;
753:
1.76 espie 754: Var_Append(".TARGETS", name);
1.1 deraadt 755: }
756: } else
1.76 espie 757: Var_Set(".TARGETS", "");
1.1 deraadt 758:
1.5 niklas 759:
760: /*
761: * If no user-supplied system path was given (through the -m option)
762: * add the directories from the DEFSYSPATH (more than one may be given
763: * as dir1:...:dirn) to the system include path.
764: */
1.81 espie 765: if (Lst_IsEmpty(systemIncludePath))
766: add_dirpath(systemIncludePath, syspath);
1.5 niklas 767:
1.89 espie 768: read_all_make_rules(noBuiltins, read_depend, &makefiles, &d);
1.1 deraadt 769:
1.76 espie 770: Var_Append("MFLAGS", Var_Value(MAKEFLAGS));
1.1 deraadt 771:
1.46 espie 772: /* Install all the flags into the MAKEFLAGS env variable. */
773: if (((p = Var_Value(MAKEFLAGS)) != NULL) && *p)
1.44 espie 774: esetenv("MAKEFLAGS", p);
1.1 deraadt 775:
1.75 espie 776: setup_VPATH();
1.1 deraadt 777:
1.83 espie 778: process_suffixes_after_makefile_is_read();
1.1 deraadt 779:
1.96 espie 780: if (dumpData) {
781: dump_data();
782: exit(0);
783: }
1.97 espie 784:
785: /* Print the initial graph, if the user requested it. */
786: if (DEBUG(GRAPH1))
787: dump_data();
788:
1.46 espie 789: /* Print the values of any variables requested by the user. */
1.48 espie 790: if (!Lst_IsEmpty(&varstoprint)) {
1.75 espie 791: LstNode ln;
1.9 millert 792:
1.80 espie 793: for (ln = Lst_First(&varstoprint); ln != NULL;
1.75 espie 794: ln = Lst_Adv(ln)) {
795: char *value = Var_Value((char *)Lst_Datum(ln));
1.9 millert 796:
1.75 espie 797: printf("%s\n", value ? value : "");
798: }
1.48 espie 799: } else {
1.80 espie 800: /* Have now read the entire graph and need to make a list
801: * of targets to create. If none was given on the command
802: * line, we consult the parsing module to find the main
1.75 espie 803: * target(s) to create. */
804: if (Lst_IsEmpty(create))
805: Parse_MainName(&targs);
806: else
807: Targ_FindList(&targs, create);
808:
1.96 espie 809: Job_Init(maxJobs);
810: /* If the user has defined a .BEGIN target, execute the commands
811: * attached to it. */
812: if (!queryFlag)
813: Job_Begin();
1.75 espie 814: if (compatMake)
1.80 espie 815: /* Compat_Init will take care of creating all the
1.75 espie 816: * targets as well as initializing the module. */
817: Compat_Run(&targs);
818: else {
819: /* Traverse the graph, checking on all the targets. */
820: outOfDate = Make_Run(&targs);
1.1 deraadt 821: }
1.9 millert 822: }
823:
1.1 deraadt 824: /* print the graph now it's been processed if the user requested it */
825: if (DEBUG(GRAPH2))
1.97 espie 826: post_mortem();
1.1 deraadt 827:
828: if (queryFlag && outOfDate)
1.46 espie 829: return 1;
1.1 deraadt 830: else
1.46 espie 831: return 0;
1.1 deraadt 832: }
833:
834: /*-
835: * ReadMakefile --
836: * Open and parse the given makefile.
837: *
838: * Results:
1.48 espie 839: * true if ok. false if couldn't open file.
1.1 deraadt 840: *
841: * Side Effects:
842: * lots
843: */
1.48 espie 844: static bool
1.75 espie 845: ReadMakefile(void *p, void *q)
1.1 deraadt 846: {
1.64 espie 847: char *fname = (char *)p; /* makefile to read */
1.75 espie 848: struct dirs *d = (struct dirs *)q;
1.1 deraadt 849: FILE *stream;
1.53 espie 850: char *name;
1.1 deraadt 851:
852: if (!strcmp(fname, "-")) {
1.76 espie 853: Var_Set("MAKEFILE", "");
1.37 espie 854: Parse_File(estrdup("(stdin)"), stdin);
1.1 deraadt 855: } else {
856: if ((stream = fopen(fname, "r")) != NULL)
857: goto found;
858: /* if we've chdir'd, rebuild the path name */
1.75 espie 859: if (d->current != d->object && *fname != '/') {
1.53 espie 860: char *path;
861:
1.75 espie 862: path = Str_concat(d->current, fname, '/');
1.53 espie 863: if ((stream = fopen(path, "r")) == NULL)
1.75 espie 864: free(path);
1.53 espie 865: else {
1.75 espie 866: fname = path;
867: goto found;
1.1 deraadt 868: }
869: }
870: /* look in -I and system include directories. */
1.81 espie 871: name = Dir_FindFile(fname, userIncludePath);
1.1 deraadt 872: if (!name)
1.81 espie 873: name = Dir_FindFile(fname, systemIncludePath);
1.1 deraadt 874: if (!name || !(stream = fopen(name, "r")))
1.48 espie 875: return false;
1.1 deraadt 876: fname = name;
877: /*
878: * set the MAKEFILE variable desired by System V fans -- the
879: * placement of the setting here means it gets set to the last
880: * makefile specified, as it is set by SysV make.
881: */
1.76 espie 882: found: Var_Set("MAKEFILE", fname);
1.1 deraadt 883: Parse_File(fname, stream);
884: }
1.48 espie 885: return true;
1.1 deraadt 886: }
887:
1.46 espie 888:
1.1 deraadt 889: /*
890: * usage --
891: * exit with usage message
892: */
893: static void
894: usage()
895: {
896: (void)fprintf(stderr,
1.65 jmc 897: "usage: make [-BeiknPqrSst] [-D variable] [-d flags] [-f makefile]\n\
1.46 espie 898: [-I directory] [-j max_jobs] [-m directory] [-V variable]\n\
1.65 jmc 899: [NAME=value] [target ...]\n");
1.1 deraadt 900: exit(2);
901: }
902:
903:
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