Annotation of src/usr.bin/make/main.c, Revision 1.69
1.46 espie 1: /* $OpenPackages$ */
1.69 ! mk 2: /* $OpenBSD: main.c,v 1.68 2006/05/06 10:52:34 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.
1.62 millert 22: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 23: * may be used to endorse or promote products derived from this software
24: * without specific prior written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36: * SUCH DAMAGE.
37: */
38:
1.49 espie 39: #include <sys/param.h>
1.1 deraadt 40: #include <sys/types.h>
41: #include <sys/stat.h>
1.12 millert 42: #ifndef MAKE_BOOTSTRAP
1.1 deraadt 43: #include <sys/utsname.h>
1.9 millert 44: #endif
1.1 deraadt 45: #include <errno.h>
46: #include <stdio.h>
1.49 espie 47: #include <stdlib.h>
1.48 espie 48: #include <string.h>
49: #include <unistd.h>
50: #include "config.h"
51: #include "defines.h"
52: #include "var.h"
53: #include "parse.h"
54: #include "parsevar.h"
1.1 deraadt 55: #include "dir.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"
1.1 deraadt 68:
1.53 espie 69: #ifndef PATH_MAX
70: # ifdef MAXPATHLEN
71: # define PATH_MAX (MAXPATHLEN+1)
72: # else
73: # define PATH_MAX 1024
74: # endif
75: #endif
76:
1.46 espie 77: #ifndef DEFMAXLOCAL
78: #define DEFMAXLOCAL DEFMAXJOBS
1.4 niklas 79: #endif /* DEFMAXLOCAL */
1.1 deraadt 80:
1.46 espie 81: #define MAKEFLAGS ".MAKEFLAGS"
1.1 deraadt 82:
1.48 espie 83: static LIST to_create; /* Targets to be made */
84: Lst create = &to_create;
1.1 deraadt 85: GNode *DEFAULT; /* .DEFAULT node */
1.48 espie 86: bool allPrecious; /* .PRECIOUS given on line by itself */
1.1 deraadt 87:
1.48 espie 88: static bool noBuiltins; /* -r flag */
1.33 espie 89: static LIST makefiles; /* ordered list of makefiles to read */
1.48 espie 90: static LIST varstoprint; /* list of variables to print */
1.2 deraadt 91: int maxJobs; /* -j argument */
1.1 deraadt 92: static int maxLocal; /* -L argument */
1.48 espie 93: bool compatMake; /* -B argument */
1.63 espie 94: int debug; /* -d flag */
1.48 espie 95: bool noExecute; /* -n flag */
96: bool keepgoing; /* -k flag */
97: bool queryFlag; /* -q flag */
98: bool touchFlag; /* -t flag */
99: bool usePipes; /* !-P flag */
100: bool ignoreErrors; /* -i flag */
101: bool beSilent; /* -s flag */
102: bool oldVars; /* variable substitution style */
103: bool checkEnvFirst; /* -e flag */
1.1 deraadt 104:
1.46 espie 105: static void MainParseArgs(int, char **);
1.64 espie 106: static char * chdir_verify_path(const char *);
1.46 espie 107: static int ReadMakefile(void *, void *);
108: static void add_dirpath(Lst, const char *);
109: static void usage(void);
110: static void posixParseOptLetter(int);
1.48 espie 111: static void record_option(int, const char *);
1.1 deraadt 112:
113: static char *curdir; /* startup directory */
114: static char *objdir; /* where we chdir'ed to */
115:
1.46 espie 116:
1.64 espie 117: static void record_option(int c, const char *arg)
1.48 espie 118: {
119: char opt[3];
120:
121: opt[0] = '-';
122: opt[1] = c;
123: opt[2] = '\0';
124: Var_Append(MAKEFLAGS, opt, VAR_GLOBAL);
125: if (arg != NULL)
126: Var_Append(MAKEFLAGS, arg, VAR_GLOBAL);
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 'P':
1.48 espie 137: usePipes = false;
1.39 espie 138: break;
139: case 'S':
1.48 espie 140: keepgoing = false;
1.39 espie 141: break;
142: case 'e':
1.48 espie 143: checkEnvFirst = true;
1.39 espie 144: break;
145: case 'i':
1.48 espie 146: ignoreErrors = true;
1.39 espie 147: break;
148: case 'k':
1.48 espie 149: keepgoing = true;
1.39 espie 150: break;
151: case 'n':
1.48 espie 152: noExecute = true;
1.39 espie 153: break;
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;
1.2 deraadt 189: int forceJobs = 0;
1.1 deraadt 190:
1.58 millert 191: #define OPTFLAGS "BD:I:PSV:d:ef:ij:km:nqrst"
192: #define OPTLETTERS "BPSiknqrst"
193:
1.1 deraadt 194: optind = 1; /* since we're called more than once */
1.58 millert 195: optreset = 1;
1.61 millert 196: optend = 0;
1.58 millert 197: while (optind < argc) {
1.61 millert 198: if (!optend && argv[optind][0] == '-') {
199: if (argv[optind][1] == '\0')
200: optind++; /* ignore "-" */
201: else if (argv[optind][1] == '-' &&
202: argv[optind][2] == '\0') {
203: optind++; /* ignore "--" */
204: optend++; /* "--" denotes end of flags */
205: }
206: }
207: c = optend ? -1 : getopt(argc, argv, OPTFLAGS);
208: switch (c) {
1.1 deraadt 209: case 'D':
210: Var_Set(optarg, "1", VAR_GLOBAL);
1.48 espie 211: record_option(c, optarg);
1.1 deraadt 212: break;
213: case 'I':
214: Parse_AddIncludeDir(optarg);
1.48 espie 215: record_option(c, optarg);
1.1 deraadt 216: break;
1.9 millert 217: case 'V':
1.48 espie 218: Lst_AtEnd(&varstoprint, optarg);
219: record_option(c, optarg);
1.9 millert 220: break;
1.1 deraadt 221: case 'd': {
222: char *modules = optarg;
223:
224: for (; *modules; ++modules)
225: switch (*modules) {
226: case 'A':
227: debug = ~0;
228: break;
229: case 'a':
230: debug |= DEBUG_ARCH;
231: break;
232: case 'c':
233: debug |= DEBUG_COND;
234: break;
235: case 'd':
236: debug |= DEBUG_DIR;
237: break;
238: case 'f':
239: debug |= DEBUG_FOR;
240: break;
241: case 'g':
242: if (modules[1] == '1') {
243: debug |= DEBUG_GRAPH1;
244: ++modules;
245: }
246: else if (modules[1] == '2') {
247: debug |= DEBUG_GRAPH2;
248: ++modules;
249: }
250: break;
251: case 'j':
252: debug |= DEBUG_JOB;
253: break;
1.46 espie 254: case 'l':
255: debug |= DEBUG_LOUD;
256: break;
1.1 deraadt 257: case 'm':
258: debug |= DEBUG_MAKE;
259: break;
260: case 's':
261: debug |= DEBUG_SUFF;
262: break;
263: case 't':
264: debug |= DEBUG_TARG;
265: break;
266: case 'v':
267: debug |= DEBUG_VAR;
268: break;
269: default:
270: (void)fprintf(stderr,
1.67 jmc 271: "make: illegal argument to -d option -- %c\n",
1.1 deraadt 272: *modules);
273: usage();
274: }
1.48 espie 275: record_option(c, optarg);
1.1 deraadt 276: break;
277: }
278: case 'f':
1.33 espie 279: Lst_AtEnd(&makefiles, optarg);
1.1 deraadt 280: break;
1.15 espie 281: case 'j': {
282: char *endptr;
283:
1.48 espie 284: forceJobs = true;
1.15 espie 285: maxJobs = strtol(optarg, &endptr, 0);
286: if (endptr == optarg) {
287: fprintf(stderr,
288: "make: illegal argument to -j option -- %s -- not a number\n",
289: optarg);
290: usage();
291: }
1.2 deraadt 292: maxLocal = maxJobs;
1.48 espie 293: record_option(c, optarg);
1.1 deraadt 294: break;
1.15 espie 295: }
1.5 niklas 296: case 'm':
1.48 espie 297: Dir_AddDir(sysIncPath, optarg);
298: record_option(c, optarg);
1.5 niklas 299: break;
1.58 millert 300: case -1:
301: /* Check for variable assignments and targets. */
1.59 millert 302: if (argv[optind] != NULL &&
303: !Parse_DoVar(argv[optind], VAR_CMD)) {
1.58 millert 304: if (!*argv[optind])
305: Punt("illegal (null) argument.");
1.61 millert 306: Lst_AtEnd(create, estrdup(argv[optind]));
1.58 millert 307: }
308: optind++; /* skip over non-option */
309: break;
1.1 deraadt 310: default:
1.39 espie 311: posixParseOptLetter(c);
1.1 deraadt 312: }
313: }
314:
1.2 deraadt 315: /*
316: * Be compatible if user did not specify -j and did not explicitly
1.48 espie 317: * turn compatibility on
1.2 deraadt 318: */
319: if (!compatMake && !forceJobs)
1.48 espie 320: compatMake = true;
1.2 deraadt 321:
1.48 espie 322: oldVars = true;
1.1 deraadt 323: }
324:
325: /*-
326: * Main_ParseArgLine --
1.46 espie 327: * Used by the parse module when a .MFLAGS or .MAKEFLAGS target
1.1 deraadt 328: * is encountered and by main() when reading the .MAKEFLAGS envariable.
329: * Takes a line of arguments and breaks it into its
1.46 espie 330: * component words and passes those words and the number of them to the
1.1 deraadt 331: * MainParseArgs function.
332: * The line should have all its leading whitespace removed.
333: *
334: * Side Effects:
335: * Only those that come from the various arguments.
336: */
337: void
1.64 espie 338: Main_ParseArgLine(const char *line) /* Line to fracture */
1.1 deraadt 339: {
340: char **argv; /* Manufactured argument vector */
341: int argc; /* Number of arguments in argv */
1.14 espie 342: char *args; /* Space used by the args */
1.19 espie 343: char *buf;
1.39 espie 344: char *argv0;
1.48 espie 345: const char *s;
1.60 espie 346: size_t len;
1.1 deraadt 347:
1.46 espie 348:
1.1 deraadt 349: if (line == NULL)
350: return;
351: for (; *line == ' '; ++line)
352: continue;
353: if (!*line)
354: return;
355:
1.39 espie 356: /* POSIX rule: MAKEFLAGS can hold a set of option letters without
357: * any blanks or dashes. */
358: for (s = line;; s++) {
359: if (*s == '\0') {
1.46 espie 360: while (line != s)
1.39 espie 361: posixParseOptLetter(*line++);
362: return;
1.46 espie 363: }
1.39 espie 364: if (strchr(OPTLETTERS, *s) == NULL)
365: break;
366: }
1.46 espie 367: argv0 = Var_Value(".MAKE");
1.60 espie 368: len = strlen(line) + strlen(argv0) + 2;
369: buf = emalloc(len);
370: (void)snprintf(buf, len, "%s %s", argv0, line);
1.14 espie 371:
1.46 espie 372: argv = brk_string(buf, &argc, &args);
1.14 espie 373: free(buf);
1.1 deraadt 374: MainParseArgs(argc, argv);
1.14 espie 375:
376: free(args);
377: free(argv);
1.1 deraadt 378: }
379:
1.9 millert 380: char *
1.64 espie 381: chdir_verify_path(const char *path)
1.9 millert 382: {
1.46 espie 383: struct stat sb;
1.9 millert 384:
1.46 espie 385: if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) {
386: if (chdir(path)) {
387: (void)fprintf(stderr, "make warning: %s: %s.\n",
388: path, strerror(errno));
389: return NULL;
390: } else {
1.53 espie 391: if (path[0] != '/')
392: return Str_concat(curdir, path, '/');
1.46 espie 393: else
1.53 espie 394: return estrdup(path);
1.9 millert 395: }
1.46 espie 396: }
1.9 millert 397:
1.46 espie 398: return NULL;
1.9 millert 399: }
400:
1.46 espie 401:
1.42 espie 402: /* Add a :-separated path to a Lst of directories. */
403: static void
1.64 espie 404: add_dirpath(Lst l, const char *n)
1.42 espie 405: {
406: const char *start;
407: const char *cp;
408:
409: for (start = n;;) {
410: for (cp = start; *cp != '\0' && *cp != ':';)
411: cp++;
1.48 espie 412: Dir_AddDiri(l, start, cp);
1.42 espie 413: if (*cp == '\0')
414: break;
415: else
416: start= cp+1;
417: }
418: }
419:
1.46 espie 420: int main(int, char **);
1.1 deraadt 421: /*-
422: * main --
423: * The main function, for obvious reasons. Initializes variables
424: * and a few modules, then parses the arguments give it in the
425: * environment and on the command line. Reads the system makefile
426: * followed by either Makefile, makefile or the file given by the
427: * -f argument. Sets the .MAKEFLAGS PMake variable based on all the
428: * flags it has received by then uses either the Make or the Compat
429: * module to create the initial list of targets.
430: *
431: * Results:
432: * If -q was given, exits -1 if anything was out-of-date. Else it exits
433: * 0.
434: *
435: * Side Effects:
436: * The program exits when done. Targets are created. etc. etc. etc.
437: */
438: int
1.64 espie 439: main(int argc, char **argv)
1.1 deraadt 440: {
1.56 espie 441: static LIST targs; /* target nodes to create */
1.48 espie 442: bool outOfDate = true; /* false if all targets up to date */
1.1 deraadt 443: struct stat sb, sa;
1.19 espie 444: char *p, *path, *pathp, *pwd;
1.53 espie 445: char *mdpath;
1.46 espie 446: char *machine = getenv("MACHINE");
1.12 millert 447: char *machine_arch = getenv("MACHINE_ARCH");
1.48 espie 448: const char *syspath = _PATH_DEFSYSPATH;
1.46 espie 449:
1.2 deraadt 450: #ifdef RLIMIT_NOFILE
451: /*
452: * get rid of resource limit on file descriptors
453: */
454: {
455: struct rlimit rl;
456: if (getrlimit(RLIMIT_NOFILE, &rl) != -1 &&
457: rl.rlim_cur != rl.rlim_max) {
458: rl.rlim_cur = rl.rlim_max;
1.46 espie 459: (void)setrlimit(RLIMIT_NOFILE, &rl);
1.2 deraadt 460: }
461: }
462: #endif
1.1 deraadt 463: /*
464: * Find where we are and take care of PWD for the automounter...
465: * All this code is so that we know where we are when we start up
466: * on a different machine with pmake.
467: */
1.53 espie 468: if ((curdir = dogetcwd()) == NULL) {
1.1 deraadt 469: (void)fprintf(stderr, "make: %s.\n", strerror(errno));
470: exit(2);
471: }
472:
473: if (stat(curdir, &sa) == -1) {
474: (void)fprintf(stderr, "make: %s: %s.\n",
475: curdir, strerror(errno));
476: exit(2);
477: }
478:
479: if ((pwd = getenv("PWD")) != NULL) {
480: if (stat(pwd, &sb) == 0 && sa.st_ino == sb.st_ino &&
1.53 espie 481: sa.st_dev == sb.st_dev) {
482: free(curdir);
483: curdir = estrdup(pwd);
484: }
1.1 deraadt 485: }
486:
487: /*
488: * Get the name of this type of MACHINE from utsname
489: * so we can share an executable for similar machines.
490: * (i.e. m68k: amiga hp300, mac68k, sun3, ...)
491: *
1.12 millert 492: * Note that both MACHINE and MACHINE_ARCH are decided at
493: * run-time.
1.1 deraadt 494: */
1.12 millert 495: if (!machine) {
496: #ifndef MAKE_BOOTSTRAP
1.9 millert 497: struct utsname utsname;
498:
1.2 deraadt 499: if (uname(&utsname) == -1) {
1.1 deraadt 500: perror("make: uname");
501: exit(2);
502: }
503: machine = utsname.machine;
1.6 niklas 504: #else
505: machine = MACHINE;
506: #endif
1.1 deraadt 507: }
508:
1.12 millert 509: if (!machine_arch) {
510: #ifndef MACHINE_ARCH
511: machine_arch = "unknown"; /* XXX: no uname -p yet */
512: #else
513: machine_arch = MACHINE_ARCH;
514: #endif
515: }
516:
1.1 deraadt 517: /*
1.9 millert 518: * If the MAKEOBJDIR (or by default, the _PATH_OBJDIR) directory
519: * exists, change into it and build there. (If a .${MACHINE} suffix
520: * exists, use that directory instead).
521: * Otherwise check MAKEOBJDIRPREFIX`cwd` (or by default,
522: * _PATH_OBJDIRPREFIX`cwd`) and build there if it exists.
523: * If all fails, use the current directory to build.
524: *
525: * Once things are initted,
526: * have to add the original directory to the search path,
1.66 jolan 527: * and modify the paths for the Makefiles appropriately. The
1.1 deraadt 528: * current directory is also placed as a variable for make scripts.
529: */
1.53 espie 530: mdpath = NULL;
1.9 millert 531: if (!(pathp = getenv("MAKEOBJDIRPREFIX"))) {
532: if (!(path = getenv("MAKEOBJDIR"))) {
533: path = _PATH_OBJDIR;
534: pathp = _PATH_OBJDIRPREFIX;
1.53 espie 535: mdpath = Str_concat(path, machine, '.');
536: if (!(objdir = chdir_verify_path(mdpath)))
537: if (!(objdir=chdir_verify_path(path))) {
538: free(mdpath);
539: mdpath = Str_concat(pathp, curdir, 0);
540: if (!(objdir=chdir_verify_path(mdpath)))
1.9 millert 541: objdir = curdir;
542: }
543: }
1.53 espie 544: else if (!(objdir = chdir_verify_path(path)))
1.1 deraadt 545: objdir = curdir;
546: }
547: else {
1.53 espie 548: mdpath = Str_concat(pathp, curdir, 0);
549: if (!(objdir = chdir_verify_path(mdpath)))
1.1 deraadt 550: objdir = curdir;
551: }
1.53 espie 552: free(mdpath);
1.1 deraadt 553:
1.44 espie 554: esetenv("PWD", objdir);
1.30 espie 555: unsetenv("CDPATH");
1.1 deraadt 556:
1.56 espie 557: Static_Lst_Init(create);
558: Static_Lst_Init(&makefiles);
559: Static_Lst_Init(&varstoprint);
560: Static_Lst_Init(&targs);
1.52 espie 561:
1.48 espie 562: beSilent = false; /* Print commands as executed */
563: ignoreErrors = false; /* Pay attention to non-zero returns */
564: noExecute = false; /* Execute all commands */
565: keepgoing = false; /* Stop on error */
566: allPrecious = false; /* Remove targets when interrupted */
567: queryFlag = false; /* This is not just a check-run */
568: noBuiltins = false; /* Read the built-in rules */
569: touchFlag = false; /* Actually update targets */
570: usePipes = true; /* Catch child output in pipes */
1.1 deraadt 571: debug = 0; /* No debug verbosity, please. */
572:
1.46 espie 573: maxLocal = DEFMAXLOCAL; /* Set default local max concurrency */
1.2 deraadt 574: maxJobs = maxLocal;
1.48 espie 575: compatMake = false; /* No compat mode */
1.9 millert 576:
1.1 deraadt 577:
578: /*
1.48 espie 579: * Initialize all external modules.
1.1 deraadt 580: */
1.48 espie 581: Init();
582:
1.1 deraadt 583: if (objdir != curdir)
1.48 espie 584: Dir_AddDir(dirSearchPath, curdir);
1.1 deraadt 585: Var_Set(".CURDIR", curdir, VAR_GLOBAL);
586: Var_Set(".OBJDIR", objdir, VAR_GLOBAL);
587:
588: /*
589: * Initialize various variables.
590: * MAKE also gets this name, for compatibility
591: * .MAKEFLAGS gets set to the empty string just in case.
592: * MFLAGS also gets initialized empty, for compatibility.
593: */
594: Var_Set("MAKE", argv[0], VAR_GLOBAL);
1.14 espie 595: Var_Set(".MAKE", argv[0], VAR_GLOBAL);
1.1 deraadt 596: Var_Set(MAKEFLAGS, "", VAR_GLOBAL);
597: Var_Set("MFLAGS", "", VAR_GLOBAL);
598: Var_Set("MACHINE", machine, VAR_GLOBAL);
1.12 millert 599: Var_Set("MACHINE_ARCH", machine_arch, VAR_GLOBAL);
1.1 deraadt 600:
601: /*
1.46 espie 602: * First snag any flags out of the MAKEFLAGS environment variable.
1.1 deraadt 603: */
604: Main_ParseArgLine(getenv("MAKEFLAGS"));
1.9 millert 605:
1.1 deraadt 606: MainParseArgs(argc, argv);
1.30 espie 607:
1.46 espie 608: /* And set up everything for sub-makes */
1.39 espie 609: Var_AddCmdline(MAKEFLAGS);
1.46 espie 610:
1.1 deraadt 611:
1.25 espie 612: DEFAULT = NULL;
1.1 deraadt 613:
614: /*
615: * Set up the .TARGETS variable to contain the list of targets to be
616: * created. If none specified, make the variable empty -- the parser
617: * will fill the thing in with the default or .MAIN target.
618: */
1.48 espie 619: if (!Lst_IsEmpty(create)) {
1.1 deraadt 620: LstNode ln;
621:
1.48 espie 622: for (ln = Lst_First(create); ln != NULL; ln = Lst_Adv(ln)) {
1.1 deraadt 623: char *name = (char *)Lst_Datum(ln);
624:
625: Var_Append(".TARGETS", name, VAR_GLOBAL);
626: }
627: } else
628: Var_Set(".TARGETS", "", VAR_GLOBAL);
629:
1.5 niklas 630:
631: /*
632: * If no user-supplied system path was given (through the -m option)
633: * add the directories from the DEFSYSPATH (more than one may be given
634: * as dir1:...:dirn) to the system include path.
635: */
1.48 espie 636: if (Lst_IsEmpty(sysIncPath))
637: add_dirpath(sysIncPath, syspath);
1.5 niklas 638:
1.1 deraadt 639: /*
1.5 niklas 640: * Read in the built-in rules first, followed by the specified
1.48 espie 641: * makefile(s), or the default BSDmakefile, Makefile or
642: * makefile, in that order.
1.1 deraadt 643: */
1.5 niklas 644: if (!noBuiltins) {
645: LstNode ln;
1.46 espie 646: LIST sysMkPath; /* Path of sys.mk */
1.5 niklas 647:
1.33 espie 648: Lst_Init(&sysMkPath);
1.48 espie 649: Dir_Expand(_PATH_DEFSYSMK, sysIncPath, &sysMkPath);
1.33 espie 650: if (Lst_IsEmpty(&sysMkPath))
1.5 niklas 651: Fatal("make: no system rules (%s).", _PATH_DEFSYSMK);
1.33 espie 652: ln = Lst_Find(&sysMkPath, ReadMakefile, NULL);
1.25 espie 653: if (ln != NULL)
1.5 niklas 654: Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
1.34 espie 655: #ifdef CLEANUP
656: Lst_Destroy(&sysMkPath, (SimpleProc)free);
657: #endif
1.5 niklas 658: }
1.1 deraadt 659:
1.33 espie 660: if (!Lst_IsEmpty(&makefiles)) {
1.1 deraadt 661: LstNode ln;
662:
1.33 espie 663: ln = Lst_Find(&makefiles, ReadMakefile, NULL);
1.25 espie 664: if (ln != NULL)
1.1 deraadt 665: Fatal("make: cannot open %s.", (char *)Lst_Datum(ln));
1.13 niklas 666: } else if (!ReadMakefile("BSDmakefile", NULL))
667: if (!ReadMakefile("makefile", NULL))
668: (void)ReadMakefile("Makefile", NULL);
1.1 deraadt 669:
1.48 espie 670: /* Always read a .depend file, if it exists. */
1.9 millert 671: (void)ReadMakefile(".depend", NULL);
1.1 deraadt 672:
1.46 espie 673: Var_Append("MFLAGS", Var_Value(MAKEFLAGS),
674: VAR_GLOBAL);
1.1 deraadt 675:
1.46 espie 676: /* Install all the flags into the MAKEFLAGS env variable. */
677: if (((p = Var_Value(MAKEFLAGS)) != NULL) && *p)
1.44 espie 678: esetenv("MAKEFLAGS", p);
1.1 deraadt 679:
680: /*
681: * For compatibility, look at the directories in the VPATH variable
682: * and add them to the search path, if the variable is defined. The
683: * variable's value is in the same format as the PATH envariable, i.e.
684: * <directory>:<directory>:<directory>...
685: */
1.46 espie 686: if (Var_Value("VPATH") != NULL) {
687: char *vpath;
1.1 deraadt 688:
1.48 espie 689: vpath = Var_Subst("${VPATH}", NULL, false);
690: add_dirpath(dirSearchPath, vpath);
1.46 espie 691: (void)free(vpath);
1.1 deraadt 692: }
693:
1.46 espie 694: /* Now that all search paths have been read for suffixes et al, it's
695: * time to add the default search path to their lists... */
1.1 deraadt 696: Suff_DoPaths();
697:
1.46 espie 698: /* Print the initial graph, if the user requested it. */
1.1 deraadt 699: if (DEBUG(GRAPH1))
700: Targ_PrintGraph(1);
701:
1.46 espie 702: /* Print the values of any variables requested by the user. */
1.48 espie 703: if (!Lst_IsEmpty(&varstoprint)) {
704: LstNode ln;
1.9 millert 705:
1.48 espie 706: for (ln = Lst_First(&varstoprint); ln != NULL; ln = Lst_Adv(ln)) {
707: char *value = Var_Value((char *)Lst_Datum(ln));
1.9 millert 708:
1.48 espie 709: printf("%s\n", value ? value : "");
710: }
711: } else {
712: /* Have now read the entire graph and need to make a list of targets
713: * to create. If none was given on the command line, we consult the
714: * parsing module to find the main target(s) to create. */
715: if (Lst_IsEmpty(create))
1.34 espie 716: Parse_MainName(&targs);
1.48 espie 717: else
718: Targ_FindList(&targs, create);
1.1 deraadt 719:
1.48 espie 720: if (compatMake)
721: /* Compat_Init will take care of creating all the targets as
722: * well as initializing the module. */
723: Compat_Run(&targs);
724: else {
1.46 espie 725: /* Initialize job module before traversing the graph, now that
726: * any .BEGIN and .END targets have been read. This is done
1.1 deraadt 727: * only if the -q flag wasn't given (to prevent the .BEGIN from
1.46 espie 728: * being executed should it exist). */
1.1 deraadt 729: if (!queryFlag) {
730: if (maxLocal == -1)
731: maxLocal = maxJobs;
732: Job_Init(maxJobs, maxLocal);
733: }
734:
1.46 espie 735: /* Traverse the graph, checking on all the targets. */
1.34 espie 736: outOfDate = Make_Run(&targs);
1.48 espie 737: }
1.9 millert 738: }
739:
1.52 espie 740: #ifdef CLEANUP
1.34 espie 741: Lst_Destroy(&targs, NOFREE);
1.48 espie 742: Lst_Destroy(&varstoprint, NOFREE);
1.33 espie 743: Lst_Destroy(&makefiles, NOFREE);
1.48 espie 744: Lst_Destroy(create, (SimpleProc)free);
1.52 espie 745: #endif
1.1 deraadt 746:
747: /* print the graph now it's been processed if the user requested it */
748: if (DEBUG(GRAPH2))
749: Targ_PrintGraph(2);
750:
1.53 espie 751: #ifdef CLEANUP
752: if (objdir != curdir)
753: free(objdir);
754: free(curdir);
1.68 espie 755: End();
1.53 espie 756: #endif
1.1 deraadt 757: if (queryFlag && outOfDate)
1.46 espie 758: return 1;
1.1 deraadt 759: else
1.46 espie 760: return 0;
1.1 deraadt 761: }
762:
763: /*-
764: * ReadMakefile --
765: * Open and parse the given makefile.
766: *
767: * Results:
1.48 espie 768: * true if ok. false if couldn't open file.
1.1 deraadt 769: *
770: * Side Effects:
771: * lots
772: */
1.48 espie 773: static bool
1.64 espie 774: ReadMakefile(void *p, void *q UNUSED)
1.1 deraadt 775: {
1.64 espie 776: char *fname = (char *)p; /* makefile to read */
1.1 deraadt 777: FILE *stream;
1.53 espie 778: char *name;
1.1 deraadt 779:
780: if (!strcmp(fname, "-")) {
1.46 espie 781: Var_Set("MAKEFILE", "", VAR_GLOBAL);
1.37 espie 782: Parse_File(estrdup("(stdin)"), stdin);
1.1 deraadt 783: } else {
784: if ((stream = fopen(fname, "r")) != NULL)
785: goto found;
786: /* if we've chdir'd, rebuild the path name */
787: if (curdir != objdir && *fname != '/') {
1.53 espie 788: char *path;
789:
790: path = Str_concat(curdir, fname, '/');
791: if ((stream = fopen(path, "r")) == NULL)
792: free(path);
793: else {
794: fname = path;
795: goto found;
1.1 deraadt 796: }
797: }
798: /* look in -I and system include directories. */
1.48 espie 799: name = Dir_FindFile(fname, parseIncPath);
1.1 deraadt 800: if (!name)
1.48 espie 801: name = Dir_FindFile(fname, sysIncPath);
1.1 deraadt 802: if (!name || !(stream = fopen(name, "r")))
1.48 espie 803: return false;
1.1 deraadt 804: fname = name;
805: /*
806: * set the MAKEFILE variable desired by System V fans -- the
807: * placement of the setting here means it gets set to the last
808: * makefile specified, as it is set by SysV make.
809: */
810: found: Var_Set("MAKEFILE", fname, VAR_GLOBAL);
811: Parse_File(fname, stream);
812: }
1.48 espie 813: return true;
1.1 deraadt 814: }
815:
1.46 espie 816:
1.1 deraadt 817: /*
818: * usage --
819: * exit with usage message
820: */
821: static void
822: usage()
823: {
824: (void)fprintf(stderr,
1.65 jmc 825: "usage: make [-BeiknPqrSst] [-D variable] [-d flags] [-f makefile]\n\
1.46 espie 826: [-I directory] [-j max_jobs] [-m directory] [-V variable]\n\
1.65 jmc 827: [NAME=value] [target ...]\n");
1.1 deraadt 828: exit(2);
829: }
830:
831:
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