Annotation of src/usr.bin/make/main.c, Revision 1.122
1.122 ! dlg 1: /* $OpenBSD: main.c,v 1.121 2016/10/21 16:12:38 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:
1.106 deraadt 38: #include <sys/param.h> /* MACHINE MACHINE_ARCH */
1.1 deraadt 39: #include <sys/types.h>
40: #include <sys/stat.h>
41: #include <sys/utsname.h>
1.109 espie 42: #include <err.h>
1.1 deraadt 43: #include <errno.h>
44: #include <stdio.h>
1.49 espie 45: #include <stdlib.h>
1.48 espie 46: #include <string.h>
47: #include <unistd.h>
48: #include "config.h"
49: #include "defines.h"
50: #include "var.h"
1.96 espie 51: #include "lowparse.h"
1.48 espie 52: #include "parse.h"
53: #include "parsevar.h"
1.1 deraadt 54: #include "dir.h"
1.78 espie 55: #include "direxpand.h"
1.48 espie 56: #include "error.h"
57: #include "pathnames.h"
58: #include "init.h"
1.1 deraadt 59: #include "job.h"
1.48 espie 60: #include "compat.h"
61: #include "targ.h"
62: #include "suff.h"
63: #include "str.h"
64: #include "main.h"
65: #include "lst.h"
66: #include "memory.h"
67: #include "make.h"
1.96 espie 68: #include "dump.h"
1.84 espie 69:
1.46 espie 70: #define MAKEFLAGS ".MAKEFLAGS"
1.1 deraadt 71:
1.48 espie 72: static LIST to_create; /* Targets to be made */
73: Lst create = &to_create;
74: bool allPrecious; /* .PRECIOUS given on line by itself */
1.1 deraadt 75:
1.48 espie 76: static bool noBuiltins; /* -r flag */
1.33 espie 77: static LIST makefiles; /* ordered list of makefiles to read */
1.48 espie 78: static LIST varstoprint; /* list of variables to print */
1.2 deraadt 79: int maxJobs; /* -j argument */
1.48 espie 80: bool compatMake; /* -B argument */
1.86 espie 81: static bool forceJobs = false;
1.63 espie 82: int debug; /* -d flag */
1.48 espie 83: bool noExecute; /* -n flag */
84: bool keepgoing; /* -k flag */
85: bool queryFlag; /* -q flag */
86: bool touchFlag; /* -t flag */
87: bool ignoreErrors; /* -i flag */
88: bool beSilent; /* -s flag */
1.96 espie 89: bool dumpData; /* -p flag */
1.1 deraadt 90:
1.75 espie 91: struct dirs {
92: char *current;
93: char *object;
94: };
95:
96: static void MainParseArgs(int, char **);
97: static void add_dirpath(Lst, const char *);
98: static void usage(void);
99: static void posixParseOptLetter(int);
100: static void record_option(int, const char *);
101:
102: static char *figure_out_MACHINE(void);
103: static char *figure_out_MACHINE_ARCH(void);
1.93 miod 104: static char *figure_out_MACHINE_CPU(void);
1.75 espie 105:
106: static char *chdir_verify_path(const char *, struct dirs *);
107: static char *figure_out_CURDIR(void);
1.121 espie 108: static void setup_CURDIR_OBJDIR(struct dirs *);
1.75 espie 109:
110: static void setup_VPATH(void);
111:
1.89 espie 112: static void read_all_make_rules(bool, bool, Lst, struct dirs *);
1.75 espie 113: static void read_makefile_list(Lst, struct dirs *);
1.115 espie 114: static bool ReadMakefile(void *, void *);
1.1 deraadt 115:
1.100 espie 116: static void
117: record_option(int c, const char *arg)
1.48 espie 118: {
1.100 espie 119: char opt[3];
1.48 espie 120:
1.75 espie 121: opt[0] = '-';
122: opt[1] = c;
123: opt[2] = '\0';
1.76 espie 124: Var_Append(MAKEFLAGS, opt);
1.75 espie 125: if (arg != NULL)
1.76 espie 126: Var_Append(MAKEFLAGS, arg);
1.48 espie 127: }
128:
1.39 espie 129: static void
1.64 espie 130: posixParseOptLetter(int c)
1.39 espie 131: {
132: switch(c) {
133: case 'B':
1.48 espie 134: compatMake = true;
135: return; /* XXX don't pass to submakes. */
1.39 espie 136: case 'S':
1.48 espie 137: keepgoing = false;
1.39 espie 138: break;
139: case 'e':
1.70 espie 140: Var_setCheckEnvFirst(true);
1.39 espie 141: break;
142: case 'i':
1.48 espie 143: ignoreErrors = true;
1.39 espie 144: break;
145: case 'k':
1.48 espie 146: keepgoing = true;
1.39 espie 147: break;
148: case 'n':
1.48 espie 149: noExecute = true;
1.39 espie 150: break;
1.96 espie 151: case 'p':
152: dumpData = true;
153: break;
1.39 espie 154: case 'q':
1.48 espie 155: queryFlag = true;
1.39 espie 156: /* Kind of nonsensical, wot? */
157: break;
158: case 'r':
1.48 espie 159: noBuiltins = true;
1.39 espie 160: break;
161: case 's':
1.48 espie 162: beSilent = true;
1.39 espie 163: break;
164: case 't':
1.48 espie 165: touchFlag = true;
1.39 espie 166: break;
167: default:
168: case '?':
169: usage();
170: }
1.48 espie 171: record_option(c, NULL);
1.39 espie 172: }
173:
1.1 deraadt 174: /*-
175: * MainParseArgs --
176: * Parse a given argument vector. Called from main() and from
177: * Main_ParseArgLine() when the .MAKEFLAGS target is used.
178: *
179: * XXX: Deal with command line overriding .MAKEFLAGS in makefile
180: *
181: * Side Effects:
182: * Various global and local flags will be set depending on the flags
183: * given
184: */
185: static void
1.64 espie 186: MainParseArgs(int argc, char **argv)
1.1 deraadt 187: {
1.61 millert 188: int c, optend;
1.1 deraadt 189:
1.109 espie 190: #define OPTFLAGS "BC:D:I:SV:d:ef:ij:km:npqrst"
1.101 espie 191: #define OPTLETTERS "BSiknpqrst"
1.113 deraadt 192:
1.120 tb 193: if (pledge("stdio rpath wpath cpath fattr proc exec", NULL) == -1)
1.118 gsoares 194: err(2, "pledge");
1.111 deraadt 195:
1.1 deraadt 196: optind = 1; /* since we're called more than once */
1.58 millert 197: optreset = 1;
1.61 millert 198: optend = 0;
1.58 millert 199: while (optind < argc) {
1.61 millert 200: if (!optend && argv[optind][0] == '-') {
201: if (argv[optind][1] == '\0')
202: optind++; /* ignore "-" */
203: else if (argv[optind][1] == '-' &&
204: argv[optind][2] == '\0') {
205: optind++; /* ignore "--" */
206: optend++; /* "--" denotes end of flags */
207: }
208: }
209: c = optend ? -1 : getopt(argc, argv, OPTFLAGS);
210: switch (c) {
1.109 espie 211: case 'C':
212: break;
1.1 deraadt 213: case 'D':
1.76 espie 214: Var_Set(optarg, "1");
1.48 espie 215: record_option(c, optarg);
1.1 deraadt 216: break;
217: case 'I':
218: Parse_AddIncludeDir(optarg);
1.48 espie 219: record_option(c, optarg);
1.1 deraadt 220: break;
1.9 millert 221: case 'V':
1.48 espie 222: Lst_AtEnd(&varstoprint, optarg);
223: record_option(c, optarg);
1.9 millert 224: break;
1.1 deraadt 225: case 'd': {
226: char *modules = optarg;
227:
228: for (; *modules; ++modules)
229: switch (*modules) {
230: case 'A':
231: debug = ~0;
232: break;
233: case 'a':
234: debug |= DEBUG_ARCH;
235: break;
236: case 'c':
237: debug |= DEBUG_COND;
238: break;
239: case 'd':
240: debug |= DEBUG_DIR;
241: break;
1.99 espie 242: case 'D':
243: debug |= DEBUG_DOUBLE;
244: break;
1.96 espie 245: case 'e':
246: debug |= DEBUG_EXPENSIVE;
247: break;
1.1 deraadt 248: case 'f':
249: debug |= DEBUG_FOR;
250: break;
251: case 'g':
252: if (modules[1] == '1') {
253: debug |= DEBUG_GRAPH1;
254: ++modules;
255: }
256: else if (modules[1] == '2') {
257: debug |= DEBUG_GRAPH2;
258: ++modules;
259: }
260: break;
1.99 espie 261: case 'h':
262: debug |= DEBUG_HELDJOBS;
263: break;
1.1 deraadt 264: case 'j':
1.98 espie 265: debug |= DEBUG_JOB | DEBUG_KILL;
1.1 deraadt 266: break;
1.87 espie 267: case 'J':
1.96 espie 268: /* ignore */
1.98 espie 269: break;
270: case 'k':
271: debug |= DEBUG_KILL;
1.87 espie 272: break;
1.46 espie 273: case 'l':
274: debug |= DEBUG_LOUD;
275: break;
1.1 deraadt 276: case 'm':
277: debug |= DEBUG_MAKE;
1.92 espie 278: break;
279: case 'n':
280: debug |= DEBUG_NAME_MATCHING;
1.1 deraadt 281: break;
1.90 espie 282: case 'p':
283: debug |= DEBUG_PARALLEL;
284: break;
1.96 espie 285: case 'q':
286: debug |= DEBUG_QUICKDEATH;
287: break;
1.1 deraadt 288: case 's':
289: debug |= DEBUG_SUFF;
290: break;
291: case 't':
292: debug |= DEBUG_TARG;
1.99 espie 293: break;
294: case 'T':
295: debug |= DEBUG_TARGGROUP;
1.1 deraadt 296: break;
297: case 'v':
298: debug |= DEBUG_VAR;
299: break;
300: default:
301: (void)fprintf(stderr,
1.67 jmc 302: "make: illegal argument to -d option -- %c\n",
1.1 deraadt 303: *modules);
304: usage();
305: }
1.48 espie 306: record_option(c, optarg);
1.1 deraadt 307: break;
308: }
309: case 'f':
1.33 espie 310: Lst_AtEnd(&makefiles, optarg);
1.1 deraadt 311: break;
1.15 espie 312: case 'j': {
1.122 ! dlg 313: const char *errstr;
1.15 espie 314:
1.48 espie 315: forceJobs = true;
1.122 ! dlg 316: maxJobs = strtonum(optarg, 1, INT_MAX, &errstr);
! 317: if (errstr != NULL) {
1.15 espie 318: fprintf(stderr,
1.122 ! dlg 319: "make: illegal argument to -j option"
! 320: " -- %s -- %s\n", optarg, errstr);
1.15 espie 321: usage();
322: }
1.48 espie 323: record_option(c, optarg);
1.1 deraadt 324: break;
1.15 espie 325: }
1.5 niklas 326: case 'm':
1.81 espie 327: Dir_AddDir(systemIncludePath, optarg);
1.48 espie 328: record_option(c, optarg);
1.5 niklas 329: break;
1.58 millert 330: case -1:
331: /* Check for variable assignments and targets. */
1.59 millert 332: if (argv[optind] != NULL &&
1.70 espie 333: !Parse_CmdlineVar(argv[optind])) {
1.58 millert 334: if (!*argv[optind])
335: Punt("illegal (null) argument.");
1.61 millert 336: Lst_AtEnd(create, estrdup(argv[optind]));
1.58 millert 337: }
338: optind++; /* skip over non-option */
339: break;
1.1 deraadt 340: default:
1.39 espie 341: posixParseOptLetter(c);
1.1 deraadt 342: }
343: }
1.109 espie 344: }
1.1 deraadt 345:
1.109 espie 346: static void
347: MainParseChdir(int argc, char **argv)
348: {
349: int c, optend, oldopterr;
350:
351: optind = 1; /* since we're called more than once */
352: optreset = 1;
353: optend = 0;
354: oldopterr = opterr;
355: opterr = 0;
356: while (optind < argc) {
357: if (!optend && argv[optind][0] == '-') {
358: if (argv[optind][1] == '\0')
359: optind++; /* ignore "-" */
360: else if (argv[optind][1] == '-' &&
361: argv[optind][2] == '\0') {
362: optind++; /* ignore "--" */
363: optend++; /* "--" denotes end of flags */
364: }
365: }
366: c = optend ? -1 : getopt(argc, argv, OPTFLAGS);
367: switch (c) {
368: case 'C':
369: if (chdir(optarg) == -1)
1.119 tb 370: err(2, "chdir(%s)", optarg);
1.109 espie 371: break;
372: case -1:
373: optind++; /* skip over non-option */
374: break;
375: default:
376: break;
377: }
378: }
379: opterr = oldopterr;
1.1 deraadt 380: }
381:
382: /*-
383: * Main_ParseArgLine --
1.46 espie 384: * Used by the parse module when a .MFLAGS or .MAKEFLAGS target
1.1 deraadt 385: * is encountered and by main() when reading the .MAKEFLAGS envariable.
386: * Takes a line of arguments and breaks it into its
1.46 espie 387: * component words and passes those words and the number of them to the
1.1 deraadt 388: * MainParseArgs function.
389: * The line should have all its leading whitespace removed.
390: *
391: * Side Effects:
392: * Only those that come from the various arguments.
393: */
394: void
1.64 espie 395: Main_ParseArgLine(const char *line) /* Line to fracture */
1.1 deraadt 396: {
397: char **argv; /* Manufactured argument vector */
398: int argc; /* Number of arguments in argv */
1.14 espie 399: char *args; /* Space used by the args */
1.19 espie 400: char *buf;
1.39 espie 401: char *argv0;
1.48 espie 402: const char *s;
1.60 espie 403: size_t len;
1.1 deraadt 404:
1.46 espie 405:
1.1 deraadt 406: if (line == NULL)
407: return;
408: for (; *line == ' '; ++line)
409: continue;
410: if (!*line)
411: return;
412:
1.39 espie 413: /* POSIX rule: MAKEFLAGS can hold a set of option letters without
414: * any blanks or dashes. */
415: for (s = line;; s++) {
416: if (*s == '\0') {
1.46 espie 417: while (line != s)
1.39 espie 418: posixParseOptLetter(*line++);
419: return;
1.46 espie 420: }
1.39 espie 421: if (strchr(OPTLETTERS, *s) == NULL)
422: break;
423: }
1.46 espie 424: argv0 = Var_Value(".MAKE");
1.60 espie 425: len = strlen(line) + strlen(argv0) + 2;
426: buf = emalloc(len);
427: (void)snprintf(buf, len, "%s %s", argv0, line);
1.14 espie 428:
1.46 espie 429: argv = brk_string(buf, &argc, &args);
1.14 espie 430: free(buf);
1.1 deraadt 431: MainParseArgs(argc, argv);
1.14 espie 432:
433: free(args);
434: free(argv);
1.1 deraadt 435: }
436:
1.75 espie 437: /* Add a :-separated path to a Lst of directories. */
438: static void
439: add_dirpath(Lst l, const char *n)
1.9 millert 440: {
1.75 espie 441: const char *start;
442: const char *cp;
1.9 millert 443:
1.75 espie 444: for (start = n;;) {
445: for (cp = start; *cp != '\0' && *cp != ':';)
446: cp++;
447: Dir_AddDiri(l, start, cp);
448: if (*cp == '\0')
449: break;
450: else
451: start= cp+1;
1.9 millert 452: }
453: }
454:
1.75 espie 455: /*
1.80 espie 456: * Get the name of this type of MACHINE from utsname so we can share an
1.75 espie 457: * executable for similar machines. (i.e. m68k: amiga hp300, mac68k, sun3, ...)
458: *
1.93 miod 459: * Note that MACHINE, MACHINE_ARCH and MACHINE_CPU are decided at
1.75 espie 460: * run-time.
461: */
462: static char *
463: figure_out_MACHINE()
1.42 espie 464: {
1.75 espie 465: char *r = getenv("MACHINE");
466: if (r == NULL) {
467: static struct utsname utsname;
1.42 espie 468:
1.119 tb 469: if (uname(&utsname) == -1)
470: err(2, "uname");
1.75 espie 471: r = utsname.machine;
472: }
473: return r;
1.42 espie 474: }
475:
1.75 espie 476: static char *
477: figure_out_MACHINE_ARCH()
1.1 deraadt 478: {
1.75 espie 479: char *r = getenv("MACHINE_ARCH");
480: if (r == NULL) {
481: #ifndef MACHINE_ARCH
482: r = "unknown"; /* XXX: no uname -p yet */
483: #else
484: r = MACHINE_ARCH;
485: #endif
486: }
487: return r;
488: }
1.93 miod 489: static char *
490: figure_out_MACHINE_CPU()
491: {
492: char *r = getenv("MACHINE_CPU");
493: if (r == NULL) {
494: #if !defined(MACHINE_CPU) && ! defined(MACHINE_ARCH)
495: r = "unknown"; /* XXX: no uname -p yet */
496: #else
497: #if defined(MACHINE_CPU)
498: r = MACHINE_CPU;
499: #else
500: r = MACHINE_ARCH;
501: #endif
502: #endif
503: }
504: return r;
505: }
1.46 espie 506:
1.75 espie 507: static char *
508: figure_out_CURDIR()
509: {
510: char *dir, *cwd;
511: struct stat sa, sb;
512:
513: /* curdir is cwd... */
514: cwd = dogetcwd();
1.119 tb 515: if (cwd == NULL)
516: err(2, "%s", strerror(errno));
1.1 deraadt 517:
1.119 tb 518: if (stat(cwd, &sa) == -1)
519: err(2, "%s: %s", cwd, strerror(errno));
1.1 deraadt 520:
1.80 espie 521: /* ...but we can use the alias $PWD if we can prove it is the same
1.75 espie 522: * directory */
523: if ((dir = getenv("PWD")) != NULL) {
524: if (stat(dir, &sb) == 0 && sa.st_ino == sb.st_ino &&
1.91 espie 525: sa.st_dev == sb.st_dev) {
1.75 espie 526: free(cwd);
527: return estrdup(dir);
1.91 espie 528: }
1.1 deraadt 529: }
530:
1.75 espie 531: return cwd;
532: }
533:
534: static char *
535: chdir_verify_path(const char *path, struct dirs *d)
536: {
1.102 espie 537: if (chdir(path) == 0) {
538: if (path[0] != '/')
539: return Str_concat(d->current, path, '/');
540: else
541: return estrdup(path);
1.1 deraadt 542: }
1.75 espie 543: return NULL;
544: }
545:
546: static void
1.121 espie 547: setup_CURDIR_OBJDIR(struct dirs *d)
1.75 espie 548: {
1.103 chl 549: char *path;
1.12 millert 550:
1.75 espie 551: d->current = figure_out_CURDIR();
1.1 deraadt 552: /*
1.9 millert 553: * If the MAKEOBJDIR (or by default, the _PATH_OBJDIR) directory
1.102 espie 554: * exists, change into it and build there.
1.9 millert 555: *
556: * Once things are initted,
557: * have to add the original directory to the search path,
1.66 jolan 558: * and modify the paths for the Makefiles appropriately. The
1.1 deraadt 559: * current directory is also placed as a variable for make scripts.
560: */
1.102 espie 561: if ((path = getenv("MAKEOBJDIR")) == NULL) {
1.75 espie 562: path = _PATH_OBJDIR;
1.102 espie 563: }
564: d->object = chdir_verify_path(path, d);
1.75 espie 565: if (d->object == NULL)
566: d->object = d->current;
567: }
568:
569: /*
570: * if the VPATH variable is defined, add its contents to the search path.
571: * Uses the same format as the PATH env variable, i.e.,
572: * <directory>:<directory>:<directory>...
573: */
574: static void
575: setup_VPATH()
576: {
577: if (Var_Value("VPATH") != NULL) {
578: char *vpath;
579:
580: vpath = Var_Subst("${VPATH}", NULL, false);
1.79 espie 581: add_dirpath(defaultPath, vpath);
1.75 espie 582: (void)free(vpath);
1.1 deraadt 583: }
1.75 espie 584: }
585:
586: static void
587: read_makefile_list(Lst mk, struct dirs *d)
588: {
589: LstNode ln;
590: ln = Lst_Find(mk, ReadMakefile, d);
591: if (ln != NULL)
592: Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
593: }
594:
595: static void
1.89 espie 596: read_all_make_rules(bool noBuiltins, bool read_depend,
597: Lst makefiles, struct dirs *d)
1.75 espie 598: {
599: /*
600: * Read in the built-in rules first, followed by the specified
1.104 deraadt 601: * makefile(s), or the default Makefile or makefile, in that order.
1.75 espie 602: */
603: if (!noBuiltins) {
604: LIST sysMkPath; /* Path of sys.mk */
605:
606: Lst_Init(&sysMkPath);
1.81 espie 607: Dir_Expand(_PATH_DEFSYSMK, systemIncludePath, &sysMkPath);
1.75 espie 608: if (Lst_IsEmpty(&sysMkPath))
609: Fatal("make: no system rules (%s).", _PATH_DEFSYSMK);
610:
611: read_makefile_list(&sysMkPath, d);
1.1 deraadt 612: }
613:
1.75 espie 614: if (!Lst_IsEmpty(makefiles)) {
615: read_makefile_list(makefiles, d);
1.104 deraadt 616: } else if (!ReadMakefile("makefile", d))
617: (void)ReadMakefile("Makefile", d);
1.75 espie 618:
1.89 espie 619: /* read a .depend file, if it exists, and we're not building depend */
1.94 espie 620:
1.89 espie 621: if (read_depend)
622: (void)ReadMakefile(".depend", d);
1.117 espie 623: Parse_End();
1.75 espie 624: }
625:
626:
627: int main(int, char **);
628: /*-
629: * main --
630: * The main function, for obvious reasons. Initializes variables
631: * and a few modules, then parses the arguments give it in the
632: * environment and on the command line. Reads the system makefile
633: * followed by either Makefile, makefile or the file given by the
634: * -f argument. Sets the .MAKEFLAGS PMake variable based on all the
635: * flags it has received by then uses either the Make or the Compat
636: * module to create the initial list of targets.
637: *
638: * Results:
639: * If -q was given, exits -1 if anything was out-of-date. Else it exits
640: * 0.
641: *
642: * Side Effects:
643: * The program exits when done. Targets are created. etc. etc. etc.
644: */
645: int
646: main(int argc, char **argv)
647: {
648: static LIST targs; /* target nodes to create */
649: bool outOfDate = true; /* false if all targets up to date */
650: char *machine = figure_out_MACHINE();
651: char *machine_arch = figure_out_MACHINE_ARCH();
1.93 miod 652: char *machine_cpu = figure_out_MACHINE_CPU();
1.75 espie 653: const char *syspath = _PATH_DEFSYSPATH;
654: char *p;
655: static struct dirs d;
1.89 espie 656: bool read_depend = true;/* false if we don't want to read .depend */
1.75 espie 657:
1.109 espie 658: MainParseChdir(argc, argv);
1.121 espie 659: setup_CURDIR_OBJDIR(&d);
1.75 espie 660:
661: esetenv("PWD", d.object);
1.30 espie 662: unsetenv("CDPATH");
1.1 deraadt 663:
1.56 espie 664: Static_Lst_Init(create);
665: Static_Lst_Init(&makefiles);
666: Static_Lst_Init(&varstoprint);
667: Static_Lst_Init(&targs);
1.52 espie 668:
1.48 espie 669: beSilent = false; /* Print commands as executed */
670: ignoreErrors = false; /* Pay attention to non-zero returns */
671: noExecute = false; /* Execute all commands */
672: keepgoing = false; /* Stop on error */
673: allPrecious = false; /* Remove targets when interrupted */
674: queryFlag = false; /* This is not just a check-run */
675: noBuiltins = false; /* Read the built-in rules */
676: touchFlag = false; /* Actually update targets */
1.1 deraadt 677: debug = 0; /* No debug verbosity, please. */
678:
1.85 espie 679: maxJobs = DEFMAXJOBS;
1.48 espie 680: compatMake = false; /* No compat mode */
1.9 millert 681:
1.1 deraadt 682:
683: /*
1.48 espie 684: * Initialize all external modules.
1.1 deraadt 685: */
1.48 espie 686: Init();
687:
1.75 espie 688: if (d.object != d.current)
1.79 espie 689: Dir_AddDir(defaultPath, d.current);
1.76 espie 690: Var_Set(".CURDIR", d.current);
691: Var_Set(".OBJDIR", d.object);
1.96 espie 692: Parse_setcurdir(d.current);
1.87 espie 693: Targ_setdirs(d.current, d.object);
1.1 deraadt 694:
695: /*
696: * Initialize various variables.
697: * MAKE also gets this name, for compatibility
698: * .MAKEFLAGS gets set to the empty string just in case.
699: * MFLAGS also gets initialized empty, for compatibility.
700: */
1.76 espie 701: Var_Set("MAKE", argv[0]);
702: Var_Set(".MAKE", argv[0]);
703: Var_Set(MAKEFLAGS, "");
704: Var_Set("MFLAGS", "");
705: Var_Set("MACHINE", machine);
706: Var_Set("MACHINE_ARCH", machine_arch);
1.93 miod 707: Var_Set("MACHINE_CPU", machine_cpu);
1.1 deraadt 708:
709: /*
1.46 espie 710: * First snag any flags out of the MAKEFLAGS environment variable.
1.1 deraadt 711: */
712: Main_ParseArgLine(getenv("MAKEFLAGS"));
1.100 espie 713:
714: basedirectory = getenv("MAKEBASEDIRECTORY");
715: if (basedirectory == NULL)
716: setenv("MAKEBASEDIRECTORY", d.current, 0);
1.9 millert 717:
1.1 deraadt 718: MainParseArgs(argc, argv);
1.86 espie 719:
720: /*
1.97 espie 721: * Be compatible if user did not specify -j
1.86 espie 722: */
1.97 espie 723: if (!forceJobs)
1.86 espie 724: compatMake = true;
1.30 espie 725:
1.46 espie 726: /* And set up everything for sub-makes */
1.39 espie 727: Var_AddCmdline(MAKEFLAGS);
1.46 espie 728:
1.1 deraadt 729:
730: /*
731: * Set up the .TARGETS variable to contain the list of targets to be
732: * created. If none specified, make the variable empty -- the parser
733: * will fill the thing in with the default or .MAIN target.
734: */
1.48 espie 735: if (!Lst_IsEmpty(create)) {
1.1 deraadt 736: LstNode ln;
737:
1.48 espie 738: for (ln = Lst_First(create); ln != NULL; ln = Lst_Adv(ln)) {
1.121 espie 739: char *name = Lst_Datum(ln);
1.1 deraadt 740:
1.89 espie 741: if (strcmp(name, "depend") == 0)
742: read_depend = false;
743:
1.76 espie 744: Var_Append(".TARGETS", name);
1.1 deraadt 745: }
746: } else
1.76 espie 747: Var_Set(".TARGETS", "");
1.1 deraadt 748:
1.5 niklas 749:
750: /*
751: * If no user-supplied system path was given (through the -m option)
752: * add the directories from the DEFSYSPATH (more than one may be given
753: * as dir1:...:dirn) to the system include path.
754: */
1.81 espie 755: if (Lst_IsEmpty(systemIncludePath))
756: add_dirpath(systemIncludePath, syspath);
1.5 niklas 757:
1.89 espie 758: read_all_make_rules(noBuiltins, read_depend, &makefiles, &d);
1.1 deraadt 759:
1.76 espie 760: Var_Append("MFLAGS", Var_Value(MAKEFLAGS));
1.1 deraadt 761:
1.46 espie 762: /* Install all the flags into the MAKEFLAGS env variable. */
763: if (((p = Var_Value(MAKEFLAGS)) != NULL) && *p)
1.44 espie 764: esetenv("MAKEFLAGS", p);
1.1 deraadt 765:
1.75 espie 766: setup_VPATH();
1.1 deraadt 767:
1.83 espie 768: process_suffixes_after_makefile_is_read();
1.1 deraadt 769:
1.96 espie 770: if (dumpData) {
771: dump_data();
772: exit(0);
773: }
1.97 espie 774:
775: /* Print the initial graph, if the user requested it. */
776: if (DEBUG(GRAPH1))
777: dump_data();
778:
1.46 espie 779: /* Print the values of any variables requested by the user. */
1.48 espie 780: if (!Lst_IsEmpty(&varstoprint)) {
1.75 espie 781: LstNode ln;
1.9 millert 782:
1.80 espie 783: for (ln = Lst_First(&varstoprint); ln != NULL;
1.75 espie 784: ln = Lst_Adv(ln)) {
1.121 espie 785: char *value = Var_Value(Lst_Datum(ln));
1.9 millert 786:
1.75 espie 787: printf("%s\n", value ? value : "");
788: }
1.48 espie 789: } else {
1.80 espie 790: /* Have now read the entire graph and need to make a list
791: * of targets to create. If none was given on the command
792: * line, we consult the parsing module to find the main
1.75 espie 793: * target(s) to create. */
794: if (Lst_IsEmpty(create))
795: Parse_MainName(&targs);
796: else
797: Targ_FindList(&targs, create);
798:
1.96 espie 799: Job_Init(maxJobs);
800: /* If the user has defined a .BEGIN target, execute the commands
801: * attached to it. */
802: if (!queryFlag)
803: Job_Begin();
1.75 espie 804: if (compatMake)
1.80 espie 805: /* Compat_Init will take care of creating all the
1.75 espie 806: * targets as well as initializing the module. */
807: Compat_Run(&targs);
808: else {
809: /* Traverse the graph, checking on all the targets. */
810: outOfDate = Make_Run(&targs);
1.1 deraadt 811: }
1.9 millert 812: }
813:
1.1 deraadt 814: /* print the graph now it's been processed if the user requested it */
815: if (DEBUG(GRAPH2))
1.97 espie 816: post_mortem();
1.1 deraadt 817:
818: if (queryFlag && outOfDate)
1.46 espie 819: return 1;
1.1 deraadt 820: else
1.46 espie 821: return 0;
1.1 deraadt 822: }
823:
824: /*-
825: * ReadMakefile --
826: * Open and parse the given makefile.
827: *
828: * Results:
1.48 espie 829: * true if ok. false if couldn't open file.
1.1 deraadt 830: *
831: * Side Effects:
832: * lots
833: */
1.48 espie 834: static bool
1.75 espie 835: ReadMakefile(void *p, void *q)
1.1 deraadt 836: {
1.108 espie 837: const char *fname = p; /* makefile to read */
1.107 espie 838: struct dirs *d = q;
1.1 deraadt 839: FILE *stream;
1.53 espie 840: char *name;
1.1 deraadt 841:
842: if (!strcmp(fname, "-")) {
1.76 espie 843: Var_Set("MAKEFILE", "");
1.37 espie 844: Parse_File(estrdup("(stdin)"), stdin);
1.1 deraadt 845: } else {
846: if ((stream = fopen(fname, "r")) != NULL)
847: goto found;
848: /* if we've chdir'd, rebuild the path name */
1.75 espie 849: if (d->current != d->object && *fname != '/') {
1.53 espie 850: char *path;
851:
1.75 espie 852: path = Str_concat(d->current, fname, '/');
1.53 espie 853: if ((stream = fopen(path, "r")) == NULL)
1.75 espie 854: free(path);
1.53 espie 855: else {
1.75 espie 856: fname = path;
857: goto found;
1.1 deraadt 858: }
859: }
860: /* look in -I and system include directories. */
1.81 espie 861: name = Dir_FindFile(fname, userIncludePath);
1.1 deraadt 862: if (!name)
1.81 espie 863: name = Dir_FindFile(fname, systemIncludePath);
1.1 deraadt 864: if (!name || !(stream = fopen(name, "r")))
1.48 espie 865: return false;
1.1 deraadt 866: fname = name;
867: /*
868: * set the MAKEFILE variable desired by System V fans -- the
869: * placement of the setting here means it gets set to the last
870: * makefile specified, as it is set by SysV make.
871: */
1.76 espie 872: found: Var_Set("MAKEFILE", fname);
1.1 deraadt 873: Parse_File(fname, stream);
874: }
1.48 espie 875: return true;
1.1 deraadt 876: }
877:
1.46 espie 878:
1.1 deraadt 879: /*
880: * usage --
881: * exit with usage message
882: */
883: static void
884: usage()
885: {
886: (void)fprintf(stderr,
1.110 jmc 887: "usage: make [-BeiknpqrSst] [-C directory] [-D variable] [-d flags] [-f mk]\n\
888: [-I directory] [-j max_processes] [-m directory] [-V variable]\n\
1.65 jmc 889: [NAME=value] [target ...]\n");
1.1 deraadt 890: exit(2);
891: }
892:
893:
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