Annotation of src/usr.bin/make/main.c, Revision 1.125
1.125 ! espie 1: /* $OpenBSD: main.c,v 1.124 2020/01/08 14:09:29 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:
1.125 ! espie 76: static bool noBuiltins; /* -r flag */
! 77: static LIST makefiles; /* ordered list of makefiles to read */
! 78: static LIST varstoprint; /* list of variables to print */
! 79: static int optj; /* -j argument */
! 80: static bool compatMake; /* -B argument */
! 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:
1.125 ! espie 129: void
! 130: set_notparallel()
! 131: {
! 132: compatMake = true;
! 133: }
! 134:
1.39 espie 135: static void
1.64 espie 136: posixParseOptLetter(int c)
1.39 espie 137: {
138: switch(c) {
139: case 'B':
1.48 espie 140: compatMake = true;
141: return; /* XXX don't pass to submakes. */
1.39 espie 142: case 'S':
1.48 espie 143: keepgoing = false;
1.39 espie 144: break;
145: case 'e':
1.70 espie 146: Var_setCheckEnvFirst(true);
1.39 espie 147: break;
148: case 'i':
1.48 espie 149: ignoreErrors = true;
1.39 espie 150: break;
151: case 'k':
1.48 espie 152: keepgoing = true;
1.39 espie 153: break;
154: case 'n':
1.48 espie 155: noExecute = true;
1.39 espie 156: break;
1.96 espie 157: case 'p':
158: dumpData = true;
159: break;
1.39 espie 160: case 'q':
1.48 espie 161: queryFlag = true;
1.39 espie 162: /* Kind of nonsensical, wot? */
163: break;
164: case 'r':
1.48 espie 165: noBuiltins = true;
1.39 espie 166: break;
167: case 's':
1.48 espie 168: beSilent = true;
1.39 espie 169: break;
170: case 't':
1.48 espie 171: touchFlag = true;
1.39 espie 172: break;
173: default:
174: case '?':
175: usage();
176: }
1.48 espie 177: record_option(c, NULL);
1.39 espie 178: }
179:
1.1 deraadt 180: /*-
181: * MainParseArgs --
182: * Parse a given argument vector. Called from main() and from
183: * Main_ParseArgLine() when the .MAKEFLAGS target is used.
184: *
185: * XXX: Deal with command line overriding .MAKEFLAGS in makefile
186: *
187: * Side Effects:
188: * Various global and local flags will be set depending on the flags
189: * given
190: */
191: static void
1.64 espie 192: MainParseArgs(int argc, char **argv)
1.1 deraadt 193: {
1.61 millert 194: int c, optend;
1.1 deraadt 195:
1.109 espie 196: #define OPTFLAGS "BC:D:I:SV:d:ef:ij:km:npqrst"
1.101 espie 197: #define OPTLETTERS "BSiknpqrst"
1.113 deraadt 198:
1.120 tb 199: if (pledge("stdio rpath wpath cpath fattr proc exec", NULL) == -1)
1.118 gsoares 200: err(2, "pledge");
1.111 deraadt 201:
1.1 deraadt 202: optind = 1; /* since we're called more than once */
1.58 millert 203: optreset = 1;
1.61 millert 204: optend = 0;
1.58 millert 205: while (optind < argc) {
1.61 millert 206: if (!optend && argv[optind][0] == '-') {
207: if (argv[optind][1] == '\0')
208: optind++; /* ignore "-" */
209: else if (argv[optind][1] == '-' &&
210: argv[optind][2] == '\0') {
211: optind++; /* ignore "--" */
212: optend++; /* "--" denotes end of flags */
213: }
214: }
215: c = optend ? -1 : getopt(argc, argv, OPTFLAGS);
216: switch (c) {
1.109 espie 217: case 'C':
218: break;
1.1 deraadt 219: case 'D':
1.76 espie 220: Var_Set(optarg, "1");
1.48 espie 221: record_option(c, optarg);
1.1 deraadt 222: break;
223: case 'I':
224: Parse_AddIncludeDir(optarg);
1.48 espie 225: record_option(c, optarg);
1.1 deraadt 226: break;
1.9 millert 227: case 'V':
1.48 espie 228: Lst_AtEnd(&varstoprint, optarg);
229: record_option(c, optarg);
1.9 millert 230: break;
1.1 deraadt 231: case 'd': {
232: char *modules = optarg;
233:
234: for (; *modules; ++modules)
235: switch (*modules) {
236: case 'A':
237: debug = ~0;
238: break;
239: case 'a':
240: debug |= DEBUG_ARCH;
241: break;
242: case 'c':
243: debug |= DEBUG_COND;
244: break;
245: case 'd':
246: debug |= DEBUG_DIR;
247: break;
1.99 espie 248: case 'D':
249: debug |= DEBUG_DOUBLE;
250: break;
1.96 espie 251: case 'e':
252: debug |= DEBUG_EXPENSIVE;
253: break;
1.1 deraadt 254: case 'f':
255: debug |= DEBUG_FOR;
256: break;
257: case 'g':
258: if (modules[1] == '1') {
259: debug |= DEBUG_GRAPH1;
260: ++modules;
261: }
262: else if (modules[1] == '2') {
263: debug |= DEBUG_GRAPH2;
264: ++modules;
265: }
266: break;
1.99 espie 267: case 'h':
268: debug |= DEBUG_HELDJOBS;
269: break;
1.1 deraadt 270: case 'j':
1.98 espie 271: debug |= DEBUG_JOB | DEBUG_KILL;
1.1 deraadt 272: break;
1.87 espie 273: case 'J':
1.96 espie 274: /* ignore */
1.98 espie 275: break;
276: case 'k':
277: debug |= DEBUG_KILL;
1.87 espie 278: break;
1.46 espie 279: case 'l':
280: debug |= DEBUG_LOUD;
281: break;
1.1 deraadt 282: case 'm':
283: debug |= DEBUG_MAKE;
1.92 espie 284: break;
285: case 'n':
286: debug |= DEBUG_NAME_MATCHING;
1.1 deraadt 287: break;
1.90 espie 288: case 'p':
289: debug |= DEBUG_PARALLEL;
290: break;
1.96 espie 291: case 'q':
292: debug |= DEBUG_QUICKDEATH;
293: break;
1.1 deraadt 294: case 's':
295: debug |= DEBUG_SUFF;
296: break;
297: case 't':
298: debug |= DEBUG_TARG;
1.99 espie 299: break;
300: case 'T':
301: debug |= DEBUG_TARGGROUP;
1.1 deraadt 302: break;
303: case 'v':
304: debug |= DEBUG_VAR;
305: break;
306: default:
307: (void)fprintf(stderr,
1.67 jmc 308: "make: illegal argument to -d option -- %c\n",
1.1 deraadt 309: *modules);
310: usage();
311: }
1.48 espie 312: record_option(c, optarg);
1.1 deraadt 313: break;
314: }
315: case 'f':
1.33 espie 316: Lst_AtEnd(&makefiles, optarg);
1.1 deraadt 317: break;
1.15 espie 318: case 'j': {
1.122 dlg 319: const char *errstr;
1.15 espie 320:
1.48 espie 321: forceJobs = true;
1.125 ! espie 322: optj = strtonum(optarg, 1, INT_MAX, &errstr);
1.122 dlg 323: if (errstr != NULL) {
1.15 espie 324: fprintf(stderr,
1.122 dlg 325: "make: illegal argument to -j option"
326: " -- %s -- %s\n", optarg, errstr);
1.15 espie 327: usage();
328: }
1.48 espie 329: record_option(c, optarg);
1.1 deraadt 330: break;
1.15 espie 331: }
1.5 niklas 332: case 'm':
1.81 espie 333: Dir_AddDir(systemIncludePath, optarg);
1.48 espie 334: record_option(c, optarg);
1.5 niklas 335: break;
1.58 millert 336: case -1:
337: /* Check for variable assignments and targets. */
1.59 millert 338: if (argv[optind] != NULL &&
1.70 espie 339: !Parse_CmdlineVar(argv[optind])) {
1.58 millert 340: if (!*argv[optind])
341: Punt("illegal (null) argument.");
1.61 millert 342: Lst_AtEnd(create, estrdup(argv[optind]));
1.58 millert 343: }
344: optind++; /* skip over non-option */
345: break;
1.1 deraadt 346: default:
1.39 espie 347: posixParseOptLetter(c);
1.1 deraadt 348: }
349: }
1.109 espie 350: }
1.1 deraadt 351:
1.109 espie 352: static void
353: MainParseChdir(int argc, char **argv)
354: {
355: int c, optend, oldopterr;
356:
357: optind = 1; /* since we're called more than once */
358: optreset = 1;
359: optend = 0;
360: oldopterr = opterr;
361: opterr = 0;
362: while (optind < argc) {
363: if (!optend && argv[optind][0] == '-') {
364: if (argv[optind][1] == '\0')
365: optind++; /* ignore "-" */
366: else if (argv[optind][1] == '-' &&
367: argv[optind][2] == '\0') {
368: optind++; /* ignore "--" */
369: optend++; /* "--" denotes end of flags */
370: }
371: }
372: c = optend ? -1 : getopt(argc, argv, OPTFLAGS);
373: switch (c) {
374: case 'C':
375: if (chdir(optarg) == -1)
1.119 tb 376: err(2, "chdir(%s)", optarg);
1.109 espie 377: break;
378: case -1:
379: optind++; /* skip over non-option */
380: break;
381: default:
382: break;
383: }
384: }
385: opterr = oldopterr;
1.1 deraadt 386: }
387:
388: /*-
389: * Main_ParseArgLine --
1.46 espie 390: * Used by the parse module when a .MFLAGS or .MAKEFLAGS target
1.1 deraadt 391: * is encountered and by main() when reading the .MAKEFLAGS envariable.
392: * Takes a line of arguments and breaks it into its
1.46 espie 393: * component words and passes those words and the number of them to the
1.1 deraadt 394: * MainParseArgs function.
395: * The line should have all its leading whitespace removed.
396: *
397: * Side Effects:
398: * Only those that come from the various arguments.
399: */
400: void
1.64 espie 401: Main_ParseArgLine(const char *line) /* Line to fracture */
1.1 deraadt 402: {
403: char **argv; /* Manufactured argument vector */
404: int argc; /* Number of arguments in argv */
1.14 espie 405: char *args; /* Space used by the args */
1.19 espie 406: char *buf;
1.39 espie 407: char *argv0;
1.48 espie 408: const char *s;
1.60 espie 409: size_t len;
1.1 deraadt 410:
1.46 espie 411:
1.1 deraadt 412: if (line == NULL)
413: return;
414: for (; *line == ' '; ++line)
415: continue;
416: if (!*line)
417: return;
418:
1.39 espie 419: /* POSIX rule: MAKEFLAGS can hold a set of option letters without
420: * any blanks or dashes. */
421: for (s = line;; s++) {
422: if (*s == '\0') {
1.46 espie 423: while (line != s)
1.39 espie 424: posixParseOptLetter(*line++);
425: return;
1.46 espie 426: }
1.39 espie 427: if (strchr(OPTLETTERS, *s) == NULL)
428: break;
429: }
1.46 espie 430: argv0 = Var_Value(".MAKE");
1.60 espie 431: len = strlen(line) + strlen(argv0) + 2;
432: buf = emalloc(len);
433: (void)snprintf(buf, len, "%s %s", argv0, line);
1.14 espie 434:
1.46 espie 435: argv = brk_string(buf, &argc, &args);
1.14 espie 436: free(buf);
1.1 deraadt 437: MainParseArgs(argc, argv);
1.14 espie 438:
439: free(args);
440: free(argv);
1.1 deraadt 441: }
442:
1.75 espie 443: /* Add a :-separated path to a Lst of directories. */
444: static void
445: add_dirpath(Lst l, const char *n)
1.9 millert 446: {
1.75 espie 447: const char *start;
448: const char *cp;
1.9 millert 449:
1.75 espie 450: for (start = n;;) {
451: for (cp = start; *cp != '\0' && *cp != ':';)
452: cp++;
453: Dir_AddDiri(l, start, cp);
454: if (*cp == '\0')
455: break;
456: else
457: start= cp+1;
1.9 millert 458: }
459: }
460:
1.75 espie 461: /*
1.80 espie 462: * Get the name of this type of MACHINE from utsname so we can share an
1.75 espie 463: * executable for similar machines. (i.e. m68k: amiga hp300, mac68k, sun3, ...)
464: *
1.93 miod 465: * Note that MACHINE, MACHINE_ARCH and MACHINE_CPU are decided at
1.75 espie 466: * run-time.
467: */
468: static char *
469: figure_out_MACHINE()
1.42 espie 470: {
1.75 espie 471: char *r = getenv("MACHINE");
472: if (r == NULL) {
473: static struct utsname utsname;
1.42 espie 474:
1.119 tb 475: if (uname(&utsname) == -1)
476: err(2, "uname");
1.75 espie 477: r = utsname.machine;
478: }
479: return r;
1.42 espie 480: }
481:
1.75 espie 482: static char *
483: figure_out_MACHINE_ARCH()
1.1 deraadt 484: {
1.75 espie 485: char *r = getenv("MACHINE_ARCH");
486: if (r == NULL) {
487: #ifndef MACHINE_ARCH
488: r = "unknown"; /* XXX: no uname -p yet */
489: #else
490: r = MACHINE_ARCH;
491: #endif
492: }
493: return r;
494: }
1.93 miod 495: static char *
496: figure_out_MACHINE_CPU()
497: {
498: char *r = getenv("MACHINE_CPU");
499: if (r == NULL) {
500: #if !defined(MACHINE_CPU) && ! defined(MACHINE_ARCH)
501: r = "unknown"; /* XXX: no uname -p yet */
502: #else
503: #if defined(MACHINE_CPU)
504: r = MACHINE_CPU;
505: #else
506: r = MACHINE_ARCH;
507: #endif
508: #endif
509: }
510: return r;
511: }
1.46 espie 512:
1.75 espie 513: static char *
514: figure_out_CURDIR()
515: {
516: char *dir, *cwd;
517: struct stat sa, sb;
518:
519: /* curdir is cwd... */
520: cwd = dogetcwd();
1.119 tb 521: if (cwd == NULL)
1.123 espie 522: err(2, "getcwd");
1.1 deraadt 523:
1.119 tb 524: if (stat(cwd, &sa) == -1)
1.123 espie 525: err(2, "%s", cwd);
1.1 deraadt 526:
1.80 espie 527: /* ...but we can use the alias $PWD if we can prove it is the same
1.75 espie 528: * directory */
529: if ((dir = getenv("PWD")) != NULL) {
530: if (stat(dir, &sb) == 0 && sa.st_ino == sb.st_ino &&
1.91 espie 531: sa.st_dev == sb.st_dev) {
1.75 espie 532: free(cwd);
533: return estrdup(dir);
1.91 espie 534: }
1.1 deraadt 535: }
536:
1.75 espie 537: return cwd;
538: }
539:
540: static char *
541: chdir_verify_path(const char *path, struct dirs *d)
542: {
1.102 espie 543: if (chdir(path) == 0) {
544: if (path[0] != '/')
545: return Str_concat(d->current, path, '/');
546: else
547: return estrdup(path);
1.1 deraadt 548: }
1.75 espie 549: return NULL;
550: }
551:
552: static void
1.121 espie 553: setup_CURDIR_OBJDIR(struct dirs *d)
1.75 espie 554: {
1.103 chl 555: char *path;
1.12 millert 556:
1.75 espie 557: d->current = figure_out_CURDIR();
1.1 deraadt 558: /*
1.9 millert 559: * If the MAKEOBJDIR (or by default, the _PATH_OBJDIR) directory
1.102 espie 560: * exists, change into it and build there.
1.9 millert 561: *
562: * Once things are initted,
563: * have to add the original directory to the search path,
1.66 jolan 564: * and modify the paths for the Makefiles appropriately. The
1.1 deraadt 565: * current directory is also placed as a variable for make scripts.
566: */
1.102 espie 567: if ((path = getenv("MAKEOBJDIR")) == NULL) {
1.75 espie 568: path = _PATH_OBJDIR;
1.102 espie 569: }
570: d->object = chdir_verify_path(path, d);
1.75 espie 571: if (d->object == NULL)
572: d->object = d->current;
573: }
574:
575: /*
576: * if the VPATH variable is defined, add its contents to the search path.
577: * Uses the same format as the PATH env variable, i.e.,
578: * <directory>:<directory>:<directory>...
579: */
580: static void
581: setup_VPATH()
582: {
583: if (Var_Value("VPATH") != NULL) {
584: char *vpath;
585:
586: vpath = Var_Subst("${VPATH}", NULL, false);
1.79 espie 587: add_dirpath(defaultPath, vpath);
1.75 espie 588: (void)free(vpath);
1.1 deraadt 589: }
1.75 espie 590: }
591:
592: static void
593: read_makefile_list(Lst mk, struct dirs *d)
594: {
595: LstNode ln;
596: ln = Lst_Find(mk, ReadMakefile, d);
597: if (ln != NULL)
598: Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
599: }
600:
601: static void
1.89 espie 602: read_all_make_rules(bool noBuiltins, bool read_depend,
603: Lst makefiles, struct dirs *d)
1.75 espie 604: {
605: /*
606: * Read in the built-in rules first, followed by the specified
1.104 deraadt 607: * makefile(s), or the default Makefile or makefile, in that order.
1.75 espie 608: */
609: if (!noBuiltins) {
610: LIST sysMkPath; /* Path of sys.mk */
611:
612: Lst_Init(&sysMkPath);
1.81 espie 613: Dir_Expand(_PATH_DEFSYSMK, systemIncludePath, &sysMkPath);
1.75 espie 614: if (Lst_IsEmpty(&sysMkPath))
615: Fatal("make: no system rules (%s).", _PATH_DEFSYSMK);
616:
617: read_makefile_list(&sysMkPath, d);
1.1 deraadt 618: }
619:
1.75 espie 620: if (!Lst_IsEmpty(makefiles)) {
621: read_makefile_list(makefiles, d);
1.104 deraadt 622: } else if (!ReadMakefile("makefile", d))
623: (void)ReadMakefile("Makefile", d);
1.75 espie 624:
1.89 espie 625: /* read a .depend file, if it exists, and we're not building depend */
1.94 espie 626:
1.89 espie 627: if (read_depend)
628: (void)ReadMakefile(".depend", d);
1.117 espie 629: Parse_End();
1.75 espie 630: }
631:
632:
633: int main(int, char **);
634: /*-
635: * main --
636: * The main function, for obvious reasons. Initializes variables
637: * and a few modules, then parses the arguments give it in the
638: * environment and on the command line. Reads the system makefile
639: * followed by either Makefile, makefile or the file given by the
640: * -f argument. Sets the .MAKEFLAGS PMake variable based on all the
641: * flags it has received by then uses either the Make or the Compat
642: * module to create the initial list of targets.
643: *
644: * Results:
645: * If -q was given, exits -1 if anything was out-of-date. Else it exits
646: * 0.
647: *
648: * Side Effects:
649: * The program exits when done. Targets are created. etc. etc. etc.
650: */
651: int
652: main(int argc, char **argv)
653: {
654: static LIST targs; /* target nodes to create */
655: bool outOfDate = true; /* false if all targets up to date */
656: char *machine = figure_out_MACHINE();
657: char *machine_arch = figure_out_MACHINE_ARCH();
1.93 miod 658: char *machine_cpu = figure_out_MACHINE_CPU();
1.75 espie 659: const char *syspath = _PATH_DEFSYSPATH;
660: char *p;
661: static struct dirs d;
1.89 espie 662: bool read_depend = true;/* false if we don't want to read .depend */
1.75 espie 663:
1.109 espie 664: MainParseChdir(argc, argv);
1.121 espie 665: setup_CURDIR_OBJDIR(&d);
1.75 espie 666:
667: esetenv("PWD", d.object);
1.30 espie 668: unsetenv("CDPATH");
1.1 deraadt 669:
1.56 espie 670: Static_Lst_Init(create);
671: Static_Lst_Init(&makefiles);
672: Static_Lst_Init(&varstoprint);
673: Static_Lst_Init(&targs);
1.52 espie 674:
1.48 espie 675: beSilent = false; /* Print commands as executed */
676: ignoreErrors = false; /* Pay attention to non-zero returns */
677: noExecute = false; /* Execute all commands */
678: keepgoing = false; /* Stop on error */
679: allPrecious = false; /* Remove targets when interrupted */
680: queryFlag = false; /* This is not just a check-run */
681: noBuiltins = false; /* Read the built-in rules */
682: touchFlag = false; /* Actually update targets */
1.1 deraadt 683: debug = 0; /* No debug verbosity, please. */
684:
1.125 ! espie 685: optj = DEFMAXJOBS;
1.48 espie 686: compatMake = false; /* No compat mode */
1.9 millert 687:
1.1 deraadt 688:
689: /*
1.48 espie 690: * Initialize all external modules.
1.1 deraadt 691: */
1.48 espie 692: Init();
693:
1.75 espie 694: if (d.object != d.current)
1.79 espie 695: Dir_AddDir(defaultPath, d.current);
1.76 espie 696: Var_Set(".CURDIR", d.current);
697: Var_Set(".OBJDIR", d.object);
1.96 espie 698: Parse_setcurdir(d.current);
1.87 espie 699: Targ_setdirs(d.current, d.object);
1.1 deraadt 700:
701: /*
702: * Initialize various variables.
703: * MAKE also gets this name, for compatibility
704: * .MAKEFLAGS gets set to the empty string just in case.
705: * MFLAGS also gets initialized empty, for compatibility.
706: */
1.76 espie 707: Var_Set("MAKE", argv[0]);
708: Var_Set(".MAKE", argv[0]);
709: Var_Set(MAKEFLAGS, "");
710: Var_Set("MFLAGS", "");
711: Var_Set("MACHINE", machine);
712: Var_Set("MACHINE_ARCH", machine_arch);
1.93 miod 713: Var_Set("MACHINE_CPU", machine_cpu);
1.1 deraadt 714:
715: /*
1.46 espie 716: * First snag any flags out of the MAKEFLAGS environment variable.
1.1 deraadt 717: */
718: Main_ParseArgLine(getenv("MAKEFLAGS"));
1.100 espie 719:
720: basedirectory = getenv("MAKEBASEDIRECTORY");
721: if (basedirectory == NULL)
722: setenv("MAKEBASEDIRECTORY", d.current, 0);
1.9 millert 723:
1.1 deraadt 724: MainParseArgs(argc, argv);
1.86 espie 725:
726: /*
1.97 espie 727: * Be compatible if user did not specify -j
1.86 espie 728: */
1.97 espie 729: if (!forceJobs)
1.86 espie 730: compatMake = true;
1.30 espie 731:
1.46 espie 732: /* And set up everything for sub-makes */
1.39 espie 733: Var_AddCmdline(MAKEFLAGS);
1.46 espie 734:
1.1 deraadt 735:
736: /*
737: * Set up the .TARGETS variable to contain the list of targets to be
738: * created. If none specified, make the variable empty -- the parser
739: * will fill the thing in with the default or .MAIN target.
740: */
1.48 espie 741: if (!Lst_IsEmpty(create)) {
1.1 deraadt 742: LstNode ln;
743:
1.48 espie 744: for (ln = Lst_First(create); ln != NULL; ln = Lst_Adv(ln)) {
1.121 espie 745: char *name = Lst_Datum(ln);
1.1 deraadt 746:
1.89 espie 747: if (strcmp(name, "depend") == 0)
748: read_depend = false;
749:
1.76 espie 750: Var_Append(".TARGETS", name);
1.1 deraadt 751: }
752: } else
1.76 espie 753: Var_Set(".TARGETS", "");
1.1 deraadt 754:
1.5 niklas 755:
756: /*
757: * If no user-supplied system path was given (through the -m option)
758: * add the directories from the DEFSYSPATH (more than one may be given
759: * as dir1:...:dirn) to the system include path.
760: */
1.81 espie 761: if (Lst_IsEmpty(systemIncludePath))
762: add_dirpath(systemIncludePath, syspath);
1.5 niklas 763:
1.89 espie 764: read_all_make_rules(noBuiltins, read_depend, &makefiles, &d);
1.1 deraadt 765:
1.125 ! espie 766: if (compatMake)
! 767: optj = 1;
! 768:
1.76 espie 769: Var_Append("MFLAGS", Var_Value(MAKEFLAGS));
1.1 deraadt 770:
1.46 espie 771: /* Install all the flags into the MAKEFLAGS env variable. */
772: if (((p = Var_Value(MAKEFLAGS)) != NULL) && *p)
1.44 espie 773: esetenv("MAKEFLAGS", p);
1.1 deraadt 774:
1.75 espie 775: setup_VPATH();
1.1 deraadt 776:
1.83 espie 777: process_suffixes_after_makefile_is_read();
1.1 deraadt 778:
1.96 espie 779: if (dumpData) {
780: dump_data();
781: exit(0);
782: }
1.97 espie 783:
784: /* Print the initial graph, if the user requested it. */
785: if (DEBUG(GRAPH1))
786: dump_data();
787:
1.46 espie 788: /* Print the values of any variables requested by the user. */
1.48 espie 789: if (!Lst_IsEmpty(&varstoprint)) {
1.75 espie 790: LstNode ln;
1.9 millert 791:
1.80 espie 792: for (ln = Lst_First(&varstoprint); ln != NULL;
1.75 espie 793: ln = Lst_Adv(ln)) {
1.121 espie 794: char *value = Var_Value(Lst_Datum(ln));
1.9 millert 795:
1.75 espie 796: printf("%s\n", value ? value : "");
797: }
1.48 espie 798: } else {
1.80 espie 799: /* Have now read the entire graph and need to make a list
800: * of targets to create. If none was given on the command
801: * line, we consult the parsing module to find the main
1.75 espie 802: * target(s) to create. */
803: if (Lst_IsEmpty(create))
804: Parse_MainName(&targs);
805: else
806: Targ_FindList(&targs, create);
807:
1.125 ! espie 808: Job_Init(optj);
1.96 espie 809: /* If the user has defined a .BEGIN target, execute the commands
810: * attached to it. */
811: if (!queryFlag)
812: Job_Begin();
1.75 espie 813: if (compatMake)
1.80 espie 814: /* Compat_Init will take care of creating all the
1.75 espie 815: * targets as well as initializing the module. */
1.124 espie 816: outOfDate = Compat_Run(&targs);
1.75 espie 817: else {
818: /* Traverse the graph, checking on all the targets. */
819: outOfDate = Make_Run(&targs);
1.1 deraadt 820: }
1.9 millert 821: }
822:
1.1 deraadt 823: /* print the graph now it's been processed if the user requested it */
824: if (DEBUG(GRAPH2))
1.97 espie 825: post_mortem();
1.1 deraadt 826:
827: if (queryFlag && outOfDate)
1.46 espie 828: return 1;
1.1 deraadt 829: else
1.46 espie 830: return 0;
1.1 deraadt 831: }
832:
833: /*-
834: * ReadMakefile --
835: * Open and parse the given makefile.
836: *
837: * Results:
1.48 espie 838: * true if ok. false if couldn't open file.
1.1 deraadt 839: *
840: * Side Effects:
841: * lots
842: */
1.48 espie 843: static bool
1.75 espie 844: ReadMakefile(void *p, void *q)
1.1 deraadt 845: {
1.108 espie 846: const char *fname = p; /* makefile to read */
1.107 espie 847: struct dirs *d = q;
1.1 deraadt 848: FILE *stream;
1.53 espie 849: char *name;
1.1 deraadt 850:
851: if (!strcmp(fname, "-")) {
1.76 espie 852: Var_Set("MAKEFILE", "");
1.37 espie 853: Parse_File(estrdup("(stdin)"), stdin);
1.1 deraadt 854: } else {
855: if ((stream = fopen(fname, "r")) != NULL)
856: goto found;
857: /* if we've chdir'd, rebuild the path name */
1.75 espie 858: if (d->current != d->object && *fname != '/') {
1.53 espie 859: char *path;
860:
1.75 espie 861: path = Str_concat(d->current, fname, '/');
1.53 espie 862: if ((stream = fopen(path, "r")) == NULL)
1.75 espie 863: free(path);
1.53 espie 864: else {
1.75 espie 865: fname = path;
866: goto found;
1.1 deraadt 867: }
868: }
869: /* look in -I and system include directories. */
1.81 espie 870: name = Dir_FindFile(fname, userIncludePath);
1.1 deraadt 871: if (!name)
1.81 espie 872: name = Dir_FindFile(fname, systemIncludePath);
1.1 deraadt 873: if (!name || !(stream = fopen(name, "r")))
1.48 espie 874: return false;
1.1 deraadt 875: fname = name;
876: /*
877: * set the MAKEFILE variable desired by System V fans -- the
878: * placement of the setting here means it gets set to the last
879: * makefile specified, as it is set by SysV make.
880: */
1.76 espie 881: found: Var_Set("MAKEFILE", fname);
1.1 deraadt 882: Parse_File(fname, stream);
883: }
1.48 espie 884: return true;
1.1 deraadt 885: }
886:
1.46 espie 887:
1.1 deraadt 888: /*
889: * usage --
890: * exit with usage message
891: */
892: static void
893: usage()
894: {
895: (void)fprintf(stderr,
1.110 jmc 896: "usage: make [-BeiknpqrSst] [-C directory] [-D variable] [-d flags] [-f mk]\n\
897: [-I directory] [-j max_processes] [-m directory] [-V variable]\n\
1.65 jmc 898: [NAME=value] [target ...]\n");
1.1 deraadt 899: exit(2);
900: }
901:
902:
![[BACK]](/icons/back.gif){kind=icon}
Return to main.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / make