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- Committer: Package Import Robot
- Author(s): Andrew Shadura
- Date: 2013-09-22 16:07:33 UTC
- Revision ID: package-import@ubuntu.com-20130922160733-9cvmsi7z0jswtrbi
Tags: upstream-20130904
Import upstream version 20130904
- files added:
- PSD.doc
- lst.lib
- missing
- missing/sys
- mk
- mk/sys
- unit-tests
added
removed
main.c
1
/* $NetBSD: main.c,v 1.224 2013/09/04 15:38:26 sjg Exp $ */
2
3
/*
4
* Copyright (c) 1988, 1989, 1990, 1993
5
* The Regents of the University of California. All rights reserved.
6
*
7
* This code is derived from software contributed to Berkeley by
8
* Adam de Boor.
9
*
10
* Redistribution and use in source and binary forms, with or without
11
* modification, are permitted provided that the following conditions
12
* are met:
13
* 1. Redistributions of source code must retain the above copyright
14
* notice, this list of conditions and the following disclaimer.
15
* 2. Redistributions in binary form must reproduce the above copyright
16
* notice, this list of conditions and the following disclaimer in the
17
* documentation and/or other materials provided with the distribution.
18
* 3. Neither the name of the University nor the names of its contributors
19
* may be used to endorse or promote products derived from this software
20
* without specific prior written permission.
21
*
22
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32
* SUCH DAMAGE.
33
*/
34
35
/*
36
* Copyright (c) 1989 by Berkeley Softworks
37
* All rights reserved.
38
*
39
* This code is derived from software contributed to Berkeley by
40
* Adam de Boor.
41
*
42
* Redistribution and use in source and binary forms, with or without
43
* modification, are permitted provided that the following conditions
44
* are met:
45
* 1. Redistributions of source code must retain the above copyright
46
* notice, this list of conditions and the following disclaimer.
47
* 2. Redistributions in binary form must reproduce the above copyright
48
* notice, this list of conditions and the following disclaimer in the
49
* documentation and/or other materials provided with the distribution.
50
* 3. All advertising materials mentioning features or use of this software
51
* must display the following acknowledgement:
52
* This product includes software developed by the University of
53
* California, Berkeley and its contributors.
54
* 4. Neither the name of the University nor the names of its contributors
55
* may be used to endorse or promote products derived from this software
56
* without specific prior written permission.
57
*
58
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
59
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
60
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
61
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
62
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
63
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
64
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
65
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
66
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
67
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
68
* SUCH DAMAGE.
69
*/
70
71
#ifndef MAKE_NATIVE
72
static char rcsid[] = "$NetBSD: main.c,v 1.224 2013/09/04 15:38:26 sjg Exp $";
73
#else
74
#include <sys/cdefs.h>
75
#ifndef lint
76
__COPYRIGHT("@(#) Copyright (c) 1988, 1989, 1990, 1993\
77
The Regents of the University of California. All rights reserved.");
78
#endif /* not lint */
79
80
#ifndef lint
81
#if 0
82
static char sccsid[] = "@(#)main.c 8.3 (Berkeley) 3/19/94";
83
#else
84
__RCSID("$NetBSD: main.c,v 1.224 2013/09/04 15:38:26 sjg Exp $");
85
#endif
86
#endif /* not lint */
87
#endif
88
89
/*-
90
* main.c --
91
* The main file for this entire program. Exit routines etc
92
* reside here.
93
*
94
* Utility functions defined in this file:
95
* Main_ParseArgLine Takes a line of arguments, breaks them and
96
* treats them as if they were given when first
97
* invoked. Used by the parse module to implement
98
* the .MFLAGS target.
99
*
100
* Error Print a tagged error message. The global
101
* MAKE variable must have been defined. This
102
* takes a format string and two optional
103
* arguments for it.
104
*
105
* Fatal Print an error message and exit. Also takes
106
* a format string and two arguments.
107
*
108
* Punt Aborts all jobs and exits with a message. Also
109
* takes a format string and two arguments.
110
*
111
* Finish Finish things up by printing the number of
112
* errors which occurred, as passed to it, and
113
* exiting.
114
*/
115
116
#include <sys/types.h>
117
#include <sys/time.h>
118
#include <sys/param.h>
119
#include <sys/resource.h>
120
#include <sys/stat.h>
121
#include <sys/utsname.h>
122
#include "wait.h"
123
124
#include <errno.h>
125
#include <fcntl.h>
126
#include <signal.h>
127
#include <stdarg.h>
128
#include <stdio.h>
129
#include <stdlib.h>
130
#include <time.h>
131
#include <ctype.h>
132
133
#include "make.h"
134
#include "hash.h"
135
#include "dir.h"
136
#include "job.h"
137
#include "pathnames.h"
138
#include "trace.h"
139
140
#ifdef USE_IOVEC
141
#include <sys/uio.h>
142
#endif
143
144
#ifndef DEFMAXLOCAL
145
#define DEFMAXLOCAL DEFMAXJOBS
146
#endif /* DEFMAXLOCAL */
147
148
Lst create; /* Targets to be made */
149
time_t now; /* Time at start of make */
150
GNode *DEFAULT; /* .DEFAULT node */
151
Boolean allPrecious; /* .PRECIOUS given on line by itself */
152
153
static Boolean noBuiltins; /* -r flag */
154
static Lst makefiles; /* ordered list of makefiles to read */
155
static Boolean printVars; /* print value of one or more vars */
156
static Lst variables; /* list of variables to print */
157
int maxJobs; /* -j argument */
158
static int maxJobTokens; /* -j argument */
159
Boolean compatMake; /* -B argument */
160
int debug; /* -d argument */
161
Boolean debugVflag; /* -dV */
162
Boolean noExecute; /* -n flag */
163
Boolean noRecursiveExecute; /* -N flag */
164
Boolean keepgoing; /* -k flag */
165
Boolean queryFlag; /* -q flag */
166
Boolean touchFlag; /* -t flag */
167
Boolean enterFlag; /* -w flag */
168
Boolean ignoreErrors; /* -i flag */
169
Boolean beSilent; /* -s flag */
170
Boolean oldVars; /* variable substitution style */
171
Boolean checkEnvFirst; /* -e flag */
172
Boolean parseWarnFatal; /* -W flag */
173
Boolean jobServer; /* -J flag */
174
static int jp_0 = -1, jp_1 = -1; /* ends of parent job pipe */
175
Boolean varNoExportEnv; /* -X flag */
176
Boolean doing_depend; /* Set while reading .depend */
177
static Boolean jobsRunning; /* TRUE if the jobs might be running */
178
static const char * tracefile;
179
static void MainParseArgs(int, char **);
180
static int ReadMakefile(const void *, const void *);
181
static void usage(void) MAKE_ATTR_DEAD;
182
183
static Boolean ignorePWD; /* if we use -C, PWD is meaningless */
184
static char objdir[MAXPATHLEN + 1]; /* where we chdir'ed to */
185
char curdir[MAXPATHLEN + 1]; /* Startup directory */
186
char *progname; /* the program name */
187
char *makeDependfile;
188
pid_t myPid;
189
int makelevel;
190
191
Boolean forceJobs = FALSE;
192
193
/*
194
* On some systems MACHINE is defined as something other than
195
* what we want.
196
*/
197
#ifdef FORCE_MACHINE
198
# undef MACHINE
199
# define MACHINE FORCE_MACHINE
200
#endif
201
202
extern Lst parseIncPath;
203
204
/*
205
* For compatibility with the POSIX version of MAKEFLAGS that includes
206
* all the options with out -, convert flags to -f -l -a -g -s.
207
*/
208
static char *
209
explode(const char *flags)
210
{
211
size_t len;
212
char *nf, *st;
213
const char *f;
214
215
if (flags == NULL)
216
return NULL;
217
218
for (f = flags; *f; f++)
219
if (!isalpha((unsigned char)*f))
220
break;
221
222
if (*f)
223
return bmake_strdup(flags);
224
225
len = strlen(flags);
226
st = nf = bmake_malloc(len * 3 + 1);
227
while (*flags) {
228
*nf++ = '-';
229
*nf++ = *flags++;
230
*nf++ = ' ';
231
}
232
*nf = '\0';
233
return st;
234
}
235
236
static void
237
parse_debug_options(const char *argvalue)
238
{
239
const char *modules;
240
const char *mode;
241
char *fname;
242
int len;
243
244
for (modules = argvalue; *modules; ++modules) {
245
switch (*modules) {
246
case 'A':
247
debug = ~0;
248
break;
249
case 'a':
250
debug |= DEBUG_ARCH;
251
break;
252
case 'C':
253
debug |= DEBUG_CWD;
254
break;
255
case 'c':
256
debug |= DEBUG_COND;
257
break;
258
case 'd':
259
debug |= DEBUG_DIR;
260
break;
261
case 'e':
262
debug |= DEBUG_ERROR;
263
break;
264
case 'f':
265
debug |= DEBUG_FOR;
266
break;
267
case 'g':
268
if (modules[1] == '1') {
269
debug |= DEBUG_GRAPH1;
270
++modules;
271
}
272
else if (modules[1] == '2') {
273
debug |= DEBUG_GRAPH2;
274
++modules;
275
}
276
else if (modules[1] == '3') {
277
debug |= DEBUG_GRAPH3;
278
++modules;
279
}
280
break;
281
case 'j':
282
debug |= DEBUG_JOB;
283
break;
284
case 'l':
285
debug |= DEBUG_LOUD;
286
break;
287
case 'M':
288
debug |= DEBUG_META;
289
break;
290
case 'm':
291
debug |= DEBUG_MAKE;
292
break;
293
case 'n':
294
debug |= DEBUG_SCRIPT;
295
break;
296
case 'p':
297
debug |= DEBUG_PARSE;
298
break;
299
case 's':
300
debug |= DEBUG_SUFF;
301
break;
302
case 't':
303
debug |= DEBUG_TARG;
304
break;
305
case 'V':
306
debugVflag = TRUE;
307
break;
308
case 'v':
309
debug |= DEBUG_VAR;
310
break;
311
case 'x':
312
debug |= DEBUG_SHELL;
313
break;
314
case 'F':
315
if (debug_file != stdout && debug_file != stderr)
316
fclose(debug_file);
317
if (*++modules == '+') {
318
modules++;
319
mode = "a";
320
} else
321
mode = "w";
322
if (strcmp(modules, "stdout") == 0) {
323
debug_file = stdout;
324
goto debug_setbuf;
325
}
326
if (strcmp(modules, "stderr") == 0) {
327
debug_file = stderr;
328
goto debug_setbuf;
329
}
330
len = strlen(modules);
331
fname = malloc(len + 20);
332
memcpy(fname, modules, len + 1);
333
/* Let the filename be modified by the pid */
334
if (strcmp(fname + len - 3, ".%d") == 0)
335
snprintf(fname + len - 2, 20, "%d", getpid());
336
debug_file = fopen(fname, mode);
337
if (!debug_file) {
338
fprintf(stderr, "Cannot open debug file %s\n",
339
fname);
340
usage();
341
}
342
free(fname);
343
goto debug_setbuf;
344
default:
345
(void)fprintf(stderr,
346
"%s: illegal argument to d option -- %c\n",
347
progname, *modules);
348
usage();
349
}
350
}
351
debug_setbuf:
352
/*
353
* Make the debug_file unbuffered, and make
354
* stdout line buffered (unless debugfile == stdout).
355
*/
356
setvbuf(debug_file, NULL, _IONBF, 0);
357
if (debug_file != stdout) {
358
setvbuf(stdout, NULL, _IOLBF, 0);
359
}
360
}
361
362
/*-
363
* MainParseArgs --
364
* Parse a given argument vector. Called from main() and from
365
* Main_ParseArgLine() when the .MAKEFLAGS target is used.
366
*
367
* XXX: Deal with command line overriding .MAKEFLAGS in makefile
368
*
369
* Results:
370
* None
371
*
372
* Side Effects:
373
* Various global and local flags will be set depending on the flags
374
* given
375
*/
376
static void
377
MainParseArgs(int argc, char **argv)
378
{
379
char *p;
380
int c = '?';
381
int arginc;
382
char *argvalue;
383
const char *getopt_def;
384
char *optscan;
385
Boolean inOption, dashDash = FALSE;
386
char found_path[MAXPATHLEN + 1]; /* for searching for sys.mk */
387
388
#define OPTFLAGS "BC:D:I:J:NST:V:WXd:ef:ij:km:nqrstw"
389
/* Can't actually use getopt(3) because rescanning is not portable */
390
391
getopt_def = OPTFLAGS;
392
rearg:
393
inOption = FALSE;
394
optscan = NULL;
395
while(argc > 1) {
396
char *getopt_spec;
397
if(!inOption)
398
optscan = argv[1];
399
c = *optscan++;
400
arginc = 0;
401
if(inOption) {
402
if(c == '\0') {
403
++argv;
404
--argc;
405
inOption = FALSE;
406
continue;
407
}
408
} else {
409
if (c != '-' || dashDash)
410
break;
411
inOption = TRUE;
412
c = *optscan++;
413
}
414
/* '-' found at some earlier point */
415
getopt_spec = strchr(getopt_def, c);
416
if(c != '\0' && getopt_spec != NULL && getopt_spec[1] == ':') {
417
/* -<something> found, and <something> should have an arg */
418
inOption = FALSE;
419
arginc = 1;
420
argvalue = optscan;
421
if(*argvalue == '\0') {
422
if (argc < 3)
423
goto noarg;
424
argvalue = argv[2];
425
arginc = 2;
426
}
427
} else {
428
argvalue = NULL;
429
}
430
switch(c) {
431
case '\0':
432
arginc = 1;
433
inOption = FALSE;
434
break;
435
case 'B':
436
compatMake = TRUE;
437
Var_Append(MAKEFLAGS, "-B", VAR_GLOBAL);
438
Var_Set(MAKE_MODE, "compat", VAR_GLOBAL, 0);
439
break;
440
case 'C':
441
if (chdir(argvalue) == -1) {
442
(void)fprintf(stderr,
443
"%s: chdir %s: %s\n",
444
progname, argvalue,
445
strerror(errno));
446
exit(1);
447
}
448
if (getcwd(curdir, MAXPATHLEN) == NULL) {
449
(void)fprintf(stderr, "%s: %s.\n", progname, strerror(errno));
450
exit(2);
451
}
452
ignorePWD = TRUE;
453
break;
454
case 'D':
455
if (argvalue == NULL || argvalue[0] == 0) goto noarg;
456
Var_Set(argvalue, "1", VAR_GLOBAL, 0);
457
Var_Append(MAKEFLAGS, "-D", VAR_GLOBAL);
458
Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL);
459
break;
460
case 'I':
461
if (argvalue == NULL) goto noarg;
462
Parse_AddIncludeDir(argvalue);
463
Var_Append(MAKEFLAGS, "-I", VAR_GLOBAL);
464
Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL);
465
break;
466
case 'J':
467
if (argvalue == NULL) goto noarg;
468
if (sscanf(argvalue, "%d,%d", &jp_0, &jp_1) != 2) {
469
(void)fprintf(stderr,
470
"%s: internal error -- J option malformed (%s)\n",
471
progname, argvalue);
472
usage();
473
}
474
if ((fcntl(jp_0, F_GETFD, 0) < 0) ||
475
(fcntl(jp_1, F_GETFD, 0) < 0)) {
476
#if 0
477
(void)fprintf(stderr,
478
"%s: ###### warning -- J descriptors were closed!\n",
479
progname);
480
exit(2);
481
#endif
482
jp_0 = -1;
483
jp_1 = -1;
484
compatMake = TRUE;
485
} else {
486
Var_Append(MAKEFLAGS, "-J", VAR_GLOBAL);
487
Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL);
488
jobServer = TRUE;
489
}
490
break;
491
case 'N':
492
noExecute = TRUE;
493
noRecursiveExecute = TRUE;
494
Var_Append(MAKEFLAGS, "-N", VAR_GLOBAL);
495
break;
496
case 'S':
497
keepgoing = FALSE;
498
Var_Append(MAKEFLAGS, "-S", VAR_GLOBAL);
499
break;
500
case 'T':
501
if (argvalue == NULL) goto noarg;
502
tracefile = bmake_strdup(argvalue);
503
Var_Append(MAKEFLAGS, "-T", VAR_GLOBAL);
504
Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL);
505
break;
506
case 'V':
507
if (argvalue == NULL) goto noarg;
508
printVars = TRUE;
509
(void)Lst_AtEnd(variables, argvalue);
510
Var_Append(MAKEFLAGS, "-V", VAR_GLOBAL);
511
Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL);
512
break;
513
case 'W':
514
parseWarnFatal = TRUE;
515
break;
516
case 'X':
517
varNoExportEnv = TRUE;
518
Var_Append(MAKEFLAGS, "-X", VAR_GLOBAL);
519
break;
520
case 'd':
521
if (argvalue == NULL) goto noarg;
522
/* If '-d-opts' don't pass to children */
523
if (argvalue[0] == '-')
524
argvalue++;
525
else {
526
Var_Append(MAKEFLAGS, "-d", VAR_GLOBAL);
527
Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL);
528
}
529
parse_debug_options(argvalue);
530
break;
531
case 'e':
532
checkEnvFirst = TRUE;
533
Var_Append(MAKEFLAGS, "-e", VAR_GLOBAL);
534
break;
535
case 'f':
536
if (argvalue == NULL) goto noarg;
537
(void)Lst_AtEnd(makefiles, argvalue);
538
break;
539
case 'i':
540
ignoreErrors = TRUE;
541
Var_Append(MAKEFLAGS, "-i", VAR_GLOBAL);
542
break;
543
case 'j':
544
if (argvalue == NULL) goto noarg;
545
forceJobs = TRUE;
546
maxJobs = strtol(argvalue, &p, 0);
547
if (*p != '\0' || maxJobs < 1) {
548
(void)fprintf(stderr, "%s: illegal argument to -j -- must be positive integer!\n",
549
progname);
550
exit(1);
551
}
552
Var_Append(MAKEFLAGS, "-j", VAR_GLOBAL);
553
Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL);
554
Var_Set(".MAKE.JOBS", argvalue, VAR_GLOBAL, 0);
555
maxJobTokens = maxJobs;
556
break;
557
case 'k':
558
keepgoing = TRUE;
559
Var_Append(MAKEFLAGS, "-k", VAR_GLOBAL);
560
break;
561
case 'm':
562
if (argvalue == NULL) goto noarg;
563
/* look for magic parent directory search string */
564
if (strncmp(".../", argvalue, 4) == 0) {
565
if (!Dir_FindHereOrAbove(curdir, argvalue+4,
566
found_path, sizeof(found_path)))
567
break; /* nothing doing */
568
(void)Dir_AddDir(sysIncPath, found_path);
569
} else {
570
(void)Dir_AddDir(sysIncPath, argvalue);
571
}
572
Var_Append(MAKEFLAGS, "-m", VAR_GLOBAL);
573
Var_Append(MAKEFLAGS, argvalue, VAR_GLOBAL);
574
break;
575
case 'n':
576
noExecute = TRUE;
577
Var_Append(MAKEFLAGS, "-n", VAR_GLOBAL);
578
break;
579
case 'q':
580
queryFlag = TRUE;
581
/* Kind of nonsensical, wot? */
582
Var_Append(MAKEFLAGS, "-q", VAR_GLOBAL);
583
break;
584
case 'r':
585
noBuiltins = TRUE;
586
Var_Append(MAKEFLAGS, "-r", VAR_GLOBAL);
587
break;
588
case 's':
589
beSilent = TRUE;
590
Var_Append(MAKEFLAGS, "-s", VAR_GLOBAL);
591
break;
592
case 't':
593
touchFlag = TRUE;
594
Var_Append(MAKEFLAGS, "-t", VAR_GLOBAL);
595
break;
596
case 'w':
597
enterFlag = TRUE;
598
Var_Append(MAKEFLAGS, "-w", VAR_GLOBAL);
599
break;
600
case '-':
601
dashDash = TRUE;
602
break;
603
default:
604
case '?':
605
#ifndef MAKE_NATIVE
606
fprintf(stderr, "getopt(%s) -> %d (%c)\n",
607
OPTFLAGS, c, c);
608
#endif
609
usage();
610
}
611
argv += arginc;
612
argc -= arginc;
613
}
614
615
oldVars = TRUE;
616
617
/*
618
* See if the rest of the arguments are variable assignments and
619
* perform them if so. Else take them to be targets and stuff them
620
* on the end of the "create" list.
621
*/
622
for (; argc > 1; ++argv, --argc)
623
if (Parse_IsVar(argv[1])) {
624
Parse_DoVar(argv[1], VAR_CMD);
625
} else {
626
if (!*argv[1])
627
Punt("illegal (null) argument.");
628
if (*argv[1] == '-' && !dashDash)
629
goto rearg;
630
(void)Lst_AtEnd(create, bmake_strdup(argv[1]));
631
}
632
633
return;
634
noarg:
635
(void)fprintf(stderr, "%s: option requires an argument -- %c\n",
636
progname, c);
637
usage();
638
}
639
640
/*-
641
* Main_ParseArgLine --
642
* Used by the parse module when a .MFLAGS or .MAKEFLAGS target
643
* is encountered and by main() when reading the .MAKEFLAGS envariable.
644
* Takes a line of arguments and breaks it into its
645
* component words and passes those words and the number of them to the
646
* MainParseArgs function.
647
* The line should have all its leading whitespace removed.
648
*
649
* Input:
650
* line Line to fracture
651
*
652
* Results:
653
* None
654
*
655
* Side Effects:
656
* Only those that come from the various arguments.
657
*/
658
void
659
Main_ParseArgLine(const char *line)
660
{
661
char **argv; /* Manufactured argument vector */
662
int argc; /* Number of arguments in argv */
663
char *args; /* Space used by the args */
664
char *buf, *p1;
665
char *argv0 = Var_Value(".MAKE", VAR_GLOBAL, &p1);
666
size_t len;
667
668
if (line == NULL)
669
return;
670
for (; *line == ' '; ++line)
671
continue;
672
if (!*line)
673
return;
674
675
#ifndef POSIX
676
{
677
/*
678
* $MAKE may simply be naming the make(1) binary
679
*/
680
char *cp;
681
682
if (!(cp = strrchr(line, '/')))
683
cp = line;
684
if ((cp = strstr(cp, "make")) &&
685
strcmp(cp, "make") == 0)
686
return;
687
}
688
#endif
689
buf = bmake_malloc(len = strlen(line) + strlen(argv0) + 2);
690
(void)snprintf(buf, len, "%s %s", argv0, line);
691
if (p1)
692
free(p1);
693
694
argv = brk_string(buf, &argc, TRUE, &args);
695
if (argv == NULL) {
696
Error("Unterminated quoted string [%s]", buf);
697
free(buf);
698
return;
699
}
700
free(buf);
701
MainParseArgs(argc, argv);
702
703
free(args);
704
free(argv);
705
}
706
707
Boolean
708
Main_SetObjdir(const char *path)
709
{
710
struct stat sb;
711
char *p = NULL;
712
char buf[MAXPATHLEN + 1];
713
Boolean rc = FALSE;
714
715
/* expand variable substitutions */
716
if (strchr(path, '$') != 0) {
717
snprintf(buf, MAXPATHLEN, "%s", path);
718
path = p = Var_Subst(NULL, buf, VAR_GLOBAL, 0);
719
}
720
721
if (path[0] != '/') {
722
snprintf(buf, MAXPATHLEN, "%s/%s", curdir, path);
723
path = buf;
724
}
725
726
/* look for the directory and try to chdir there */
727
if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) {
728
if (chdir(path)) {
729
(void)fprintf(stderr, "make warning: %s: %s.\n",
730
path, strerror(errno));
731
} else {
732
strncpy(objdir, path, MAXPATHLEN);
733
Var_Set(".OBJDIR", objdir, VAR_GLOBAL, 0);
734
setenv("PWD", objdir, 1);
735
Dir_InitDot();
736
rc = TRUE;
737
}
738
}
739
740
if (p)
741
free(p);
742
return rc;
743
}
744
745
/*-
746
* ReadAllMakefiles --
747
* wrapper around ReadMakefile() to read all.
748
*
749
* Results:
750
* TRUE if ok, FALSE on error
751
*/
752
static int
753
ReadAllMakefiles(const void *p, const void *q)
754
{
755
return (ReadMakefile(p, q) == 0);
756
}
757
758
int
759
str2Lst_Append(Lst lp, char *str, const char *sep)
760
{
761
char *cp;
762
int n;
763
764
if (!sep)
765
sep = " \t";
766
767
for (n = 0, cp = strtok(str, sep); cp; cp = strtok(NULL, sep)) {
768
(void)Lst_AtEnd(lp, cp);
769
n++;
770
}
771
return (n);
772
}
773
774
#ifdef SIGINFO
775
/*ARGSUSED*/
776
static void
777
siginfo(int signo MAKE_ATTR_UNUSED)
778
{
779
char dir[MAXPATHLEN];
780
char str[2 * MAXPATHLEN];
781
int len;
782
if (getcwd(dir, sizeof(dir)) == NULL)
783
return;
784
len = snprintf(str, sizeof(str), "%s: Working in: %s\n", progname, dir);
785
if (len > 0)
786
(void)write(STDERR_FILENO, str, (size_t)len);
787
}
788
#endif
789
790
/*
791
* Allow makefiles some control over the mode we run in.
792
*/
793
void
794
MakeMode(const char *mode)
795
{
796
char *mp = NULL;
797
798
if (!mode)
799
mode = mp = Var_Subst(NULL, "${" MAKE_MODE ":tl}", VAR_GLOBAL, 0);
800
801
if (mode && *mode) {
802
if (strstr(mode, "compat")) {
803
compatMake = TRUE;
804
forceJobs = FALSE;
805
}
806
#if USE_META
807
if (strstr(mode, "meta"))
808
meta_mode_init(mode);
809
#endif
810
}
811
if (mp)
812
free(mp);
813
}
814
815
/*-
816
* main --
817
* The main function, for obvious reasons. Initializes variables
818
* and a few modules, then parses the arguments give it in the
819
* environment and on the command line. Reads the system makefile
820
* followed by either Makefile, makefile or the file given by the
821
* -f argument. Sets the .MAKEFLAGS PMake variable based on all the
822
* flags it has received by then uses either the Make or the Compat
823
* module to create the initial list of targets.
824
*
825
* Results:
826
* If -q was given, exits -1 if anything was out-of-date. Else it exits
827
* 0.
828
*
829
* Side Effects:
830
* The program exits when done. Targets are created. etc. etc. etc.
831
*/
832
int
833
main(int argc, char **argv)
834
{
835
Lst targs; /* target nodes to create -- passed to Make_Init */
836
Boolean outOfDate = FALSE; /* FALSE if all targets up to date */
837
struct stat sb, sa;
838
char *p1, *path;
839
char mdpath[MAXPATHLEN];
840
#ifdef FORCE_MACHINE
841
const char *machine = FORCE_MACHINE;
842
#else
843
const char *machine = getenv("MACHINE");
844
#endif
845
const char *machine_arch = getenv("MACHINE_ARCH");
846
char *syspath = getenv("MAKESYSPATH");
847
Lst sysMkPath; /* Path of sys.mk */
848
char *cp = NULL, *start;
849
/* avoid faults on read-only strings */
850
static char defsyspath[] = _PATH_DEFSYSPATH;
851
char found_path[MAXPATHLEN + 1]; /* for searching for sys.mk */
852
struct timeval rightnow; /* to initialize random seed */
853
struct utsname utsname;
854
855
/* default to writing debug to stderr */
856
debug_file = stderr;
857
858
#ifdef SIGINFO
859
(void)bmake_signal(SIGINFO, siginfo);
860
#endif
861
/*
862
* Set the seed to produce a different random sequence
863
* on each program execution.
864
*/
865
gettimeofday(&rightnow, NULL);
866
srandom(rightnow.tv_sec + rightnow.tv_usec);
867
868
if ((progname = strrchr(argv[0], '/')) != NULL)
869
progname++;
870
else
871
progname = argv[0];
872
#if defined(MAKE_NATIVE) || (defined(HAVE_SETRLIMIT) && defined(RLIMIT_NOFILE))
873
/*
874
* get rid of resource limit on file descriptors
875
*/
876
{
877
struct rlimit rl;
878
if (getrlimit(RLIMIT_NOFILE, &rl) != -1 &&
879
rl.rlim_cur != rl.rlim_max) {
880
rl.rlim_cur = rl.rlim_max;
881
(void)setrlimit(RLIMIT_NOFILE, &rl);
882
}
883
}
884
#endif
885
886
if (uname(&utsname) == -1) {
887
(void)fprintf(stderr, "%s: uname failed (%s).\n", progname,
888
strerror(errno));
889
exit(2);
890
}
891
892
/*
893
* Get the name of this type of MACHINE from utsname
894
* so we can share an executable for similar machines.
895
* (i.e. m68k: amiga hp300, mac68k, sun3, ...)
896
*
897
* Note that both MACHINE and MACHINE_ARCH are decided at
898
* run-time.
899
*/
900
if (!machine) {
901
#ifdef MAKE_NATIVE
902
machine = utsname.machine;
903
#else
904
#ifdef MAKE_MACHINE
905
machine = MAKE_MACHINE;
906
#else
907
machine = "unknown";
908
#endif
909
#endif
910
}
911
912
if (!machine_arch) {
913
#ifndef MACHINE_ARCH
914
#ifdef MAKE_MACHINE_ARCH
915
machine_arch = MAKE_MACHINE_ARCH;
916
#else
917
machine_arch = "unknown";
918
#endif
919
#else
920
machine_arch = MACHINE_ARCH;
921
#endif
922
}
923
924
myPid = getpid(); /* remember this for vFork() */
925
926
/*
927
* Just in case MAKEOBJDIR wants us to do something tricky.
928
*/
929
Var_Init(); /* Initialize the lists of variables for
930
* parsing arguments */
931
Var_Set(".MAKE.OS", utsname.sysname, VAR_GLOBAL, 0);
932
Var_Set("MACHINE", machine, VAR_GLOBAL, 0);
933
Var_Set("MACHINE_ARCH", machine_arch, VAR_GLOBAL, 0);
934
#ifdef MAKE_VERSION
935
Var_Set("MAKE_VERSION", MAKE_VERSION, VAR_GLOBAL, 0);
936
#endif
937
Var_Set(".newline", "\n", VAR_GLOBAL, 0); /* handy for :@ loops */
938
/*
939
* This is the traditional preference for makefiles.
940
*/
941
#ifndef MAKEFILE_PREFERENCE_LIST
942
# define MAKEFILE_PREFERENCE_LIST "makefile Makefile"
943
#endif
944
Var_Set(MAKEFILE_PREFERENCE, MAKEFILE_PREFERENCE_LIST,
945
VAR_GLOBAL, 0);
946
Var_Set(MAKE_DEPENDFILE, ".depend", VAR_GLOBAL, 0);
947
948
create = Lst_Init(FALSE);
949
makefiles = Lst_Init(FALSE);
950
printVars = FALSE;
951
debugVflag = FALSE;
952
variables = Lst_Init(FALSE);
953
beSilent = FALSE; /* Print commands as executed */
954
ignoreErrors = FALSE; /* Pay attention to non-zero returns */
955
noExecute = FALSE; /* Execute all commands */
956
noRecursiveExecute = FALSE; /* Execute all .MAKE targets */
957
keepgoing = FALSE; /* Stop on error */
958
allPrecious = FALSE; /* Remove targets when interrupted */
959
queryFlag = FALSE; /* This is not just a check-run */
960
noBuiltins = FALSE; /* Read the built-in rules */
961
touchFlag = FALSE; /* Actually update targets */
962
debug = 0; /* No debug verbosity, please. */
963
jobsRunning = FALSE;
964
965
maxJobs = DEFMAXLOCAL; /* Set default local max concurrency */
966
maxJobTokens = maxJobs;
967
compatMake = FALSE; /* No compat mode */
968
ignorePWD = FALSE;
969
970
/*
971
* Initialize the parsing, directory and variable modules to prepare
972
* for the reading of inclusion paths and variable settings on the
973
* command line
974
*/
975
976
/*
977
* Initialize various variables.
978
* MAKE also gets this name, for compatibility
979
* .MAKEFLAGS gets set to the empty string just in case.
980
* MFLAGS also gets initialized empty, for compatibility.
981
*/
982
Parse_Init();
983
if (argv[0][0] == '/' || strchr(argv[0], '/') == NULL) {
984
/*
985
* Leave alone if it is an absolute path, or if it does
986
* not contain a '/' in which case we need to find it in
987
* the path, like execvp(3) and the shells do.
988
*/
989
p1 = argv[0];
990
} else {
991
/*
992
* A relative path, canonicalize it.
993
*/
994
p1 = realpath(argv[0], mdpath);
995
if (!p1 || *p1 != '/' || stat(p1, &sb) < 0) {
996
p1 = argv[0]; /* realpath failed */
997
}
998
}
999
Var_Set("MAKE", p1, VAR_GLOBAL, 0);
1000
Var_Set(".MAKE", p1, VAR_GLOBAL, 0);
1001
Var_Set(MAKEFLAGS, "", VAR_GLOBAL, 0);
1002
Var_Set(MAKEOVERRIDES, "", VAR_GLOBAL, 0);
1003
Var_Set("MFLAGS", "", VAR_GLOBAL, 0);
1004
Var_Set(".ALLTARGETS", "", VAR_GLOBAL, 0);
1005
/* some makefiles need to know this */
1006
Var_Set(MAKE_LEVEL ".ENV", MAKE_LEVEL_ENV, VAR_CMD, 0);
1007
1008
/*
1009
* Set some other useful macros
1010
*/
1011
{
1012
char tmp[64], *ep;
1013
1014
makelevel = ((ep = getenv(MAKE_LEVEL_ENV)) && *ep) ? atoi(ep) : 0;
1015
if (makelevel < 0)
1016
makelevel = 0;
1017
snprintf(tmp, sizeof(tmp), "%d", makelevel);
1018
Var_Set(MAKE_LEVEL, tmp, VAR_GLOBAL, 0);
1019
snprintf(tmp, sizeof(tmp), "%u", myPid);
1020
Var_Set(".MAKE.PID", tmp, VAR_GLOBAL, 0);
1021
snprintf(tmp, sizeof(tmp), "%u", getppid());
1022
Var_Set(".MAKE.PPID", tmp, VAR_GLOBAL, 0);
1023
}
1024
if (makelevel > 0) {
1025
char pn[1024];
1026
snprintf(pn, sizeof(pn), "%s[%d]", progname, makelevel);
1027
progname = bmake_strdup(pn);
1028
}
1029
1030
#ifdef USE_META
1031
meta_init();
1032
#endif
1033
/*
1034
* First snag any flags out of the MAKE environment variable.
1035
* (Note this is *not* MAKEFLAGS since /bin/make uses that and it's
1036
* in a different format).
1037
*/
1038
#ifdef POSIX
1039
p1 = explode(getenv("MAKEFLAGS"));
1040
Main_ParseArgLine(p1);
1041
free(p1);
1042
#else
1043
Main_ParseArgLine(getenv("MAKE"));
1044
#endif
1045
1046
/*
1047
* Find where we are (now).
1048
* We take care of PWD for the automounter below...
1049
*/
1050
if (getcwd(curdir, MAXPATHLEN) == NULL) {
1051
(void)fprintf(stderr, "%s: getcwd: %s.\n",
1052
progname, strerror(errno));
1053
exit(2);
1054
}
1055
1056
MainParseArgs(argc, argv);
1057
1058
if (enterFlag)
1059
printf("%s: Entering directory `%s'\n", progname, curdir);
1060
1061
/*
1062
* Verify that cwd is sane.
1063
*/
1064
if (stat(curdir, &sa) == -1) {
1065
(void)fprintf(stderr, "%s: %s: %s.\n",
1066
progname, curdir, strerror(errno));
1067
exit(2);
1068
}
1069
1070
/*
1071
* All this code is so that we know where we are when we start up
1072
* on a different machine with pmake.
1073
* Overriding getcwd() with $PWD totally breaks MAKEOBJDIRPREFIX
1074
* since the value of curdir can vary depending on how we got
1075
* here. Ie sitting at a shell prompt (shell that provides $PWD)
1076
* or via subdir.mk in which case its likely a shell which does
1077
* not provide it.
1078
* So, to stop it breaking this case only, we ignore PWD if
1079
* MAKEOBJDIRPREFIX is set or MAKEOBJDIR contains a transform.
1080
*/
1081
#ifndef NO_PWD_OVERRIDE
1082
if (!ignorePWD) {
1083
char *pwd;
1084
1085
if ((pwd = getenv("PWD")) != NULL &&
1086
getenv("MAKEOBJDIRPREFIX") == NULL) {
1087
const char *makeobjdir = getenv("MAKEOBJDIR");
1088
1089
if (makeobjdir == NULL || !strchr(makeobjdir, '$')) {
1090
if (stat(pwd, &sb) == 0 &&
1091
sa.st_ino == sb.st_ino &&
1092
sa.st_dev == sb.st_dev)
1093
(void)strncpy(curdir, pwd, MAXPATHLEN);
1094
}
1095
}
1096
}
1097
#endif
1098
Var_Set(".CURDIR", curdir, VAR_GLOBAL, 0);
1099
1100
/*
1101
* Find the .OBJDIR. If MAKEOBJDIRPREFIX, or failing that,
1102
* MAKEOBJDIR is set in the environment, try only that value
1103
* and fall back to .CURDIR if it does not exist.
1104
*
1105
* Otherwise, try _PATH_OBJDIR.MACHINE, _PATH_OBJDIR, and
1106
* finally _PATH_OBJDIRPREFIX`pwd`, in that order. If none
1107
* of these paths exist, just use .CURDIR.
1108
*/
1109
Dir_Init(curdir);
1110
(void)Main_SetObjdir(curdir);
1111
1112
if ((path = getenv("MAKEOBJDIRPREFIX")) != NULL) {
1113
(void)snprintf(mdpath, MAXPATHLEN, "%s%s", path, curdir);
1114
(void)Main_SetObjdir(mdpath);
1115
} else if ((path = getenv("MAKEOBJDIR")) != NULL) {
1116
(void)Main_SetObjdir(path);
1117
} else {
1118
(void)snprintf(mdpath, MAXPATHLEN, "%s.%s", _PATH_OBJDIR, machine);
1119
if (!Main_SetObjdir(mdpath) && !Main_SetObjdir(_PATH_OBJDIR)) {
1120
(void)snprintf(mdpath, MAXPATHLEN, "%s%s",
1121
_PATH_OBJDIRPREFIX, curdir);
1122
(void)Main_SetObjdir(mdpath);
1123
}
1124
}
1125
1126
/*
1127
* Be compatible if user did not specify -j and did not explicitly
1128
* turned compatibility on
1129
*/
1130
if (!compatMake && !forceJobs) {
1131
compatMake = TRUE;
1132
}
1133
1134
/*
1135
* Initialize archive, target and suffix modules in preparation for
1136
* parsing the makefile(s)
1137
*/
1138
Arch_Init();
1139
Targ_Init();
1140
Suff_Init();
1141
Trace_Init(tracefile);
1142
1143
DEFAULT = NULL;
1144
(void)time(&now);
1145
1146
Trace_Log(MAKESTART, NULL);
1147
1148
/*
1149
* Set up the .TARGETS variable to contain the list of targets to be
1150
* created. If none specified, make the variable empty -- the parser
1151
* will fill the thing in with the default or .MAIN target.
1152
*/
1153
if (!Lst_IsEmpty(create)) {
1154
LstNode ln;
1155
1156
for (ln = Lst_First(create); ln != NULL;
1157
ln = Lst_Succ(ln)) {
1158
char *name = (char *)Lst_Datum(ln);
1159
1160
Var_Append(".TARGETS", name, VAR_GLOBAL);
1161
}
1162
} else
1163
Var_Set(".TARGETS", "", VAR_GLOBAL, 0);
1164
1165
1166
/*
1167
* If no user-supplied system path was given (through the -m option)
1168
* add the directories from the DEFSYSPATH (more than one may be given
1169
* as dir1:...:dirn) to the system include path.
1170
*/
1171
if (syspath == NULL || *syspath == '\0')
1172
syspath = defsyspath;
1173
else
1174
syspath = bmake_strdup(syspath);
1175
1176
for (start = syspath; *start != '\0'; start = cp) {
1177
for (cp = start; *cp != '\0' && *cp != ':'; cp++)
1178
continue;
1179
if (*cp == ':') {
1180
*cp++ = '\0';
1181
}
1182
/* look for magic parent directory search string */
1183
if (strncmp(".../", start, 4) != 0) {
1184
(void)Dir_AddDir(defIncPath, start);
1185
} else {
1186
if (Dir_FindHereOrAbove(curdir, start+4,
1187
found_path, sizeof(found_path))) {
1188
(void)Dir_AddDir(defIncPath, found_path);
1189
}
1190
}
1191
}
1192
if (syspath != defsyspath)
1193
free(syspath);
1194
1195
/*
1196
* Read in the built-in rules first, followed by the specified
1197
* makefile, if it was (makefile != NULL), or the default
1198
* makefile and Makefile, in that order, if it wasn't.
1199
*/
1200
if (!noBuiltins) {
1201
LstNode ln;
1202
1203
sysMkPath = Lst_Init(FALSE);
1204
Dir_Expand(_PATH_DEFSYSMK,
1205
Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath,
1206
sysMkPath);
1207
if (Lst_IsEmpty(sysMkPath))
1208
Fatal("%s: no system rules (%s).", progname,
1209
_PATH_DEFSYSMK);
1210
ln = Lst_Find(sysMkPath, NULL, ReadMakefile);
1211
if (ln == NULL)
1212
Fatal("%s: cannot open %s.", progname,
1213
(char *)Lst_Datum(ln));
1214
}
1215
1216
if (!Lst_IsEmpty(makefiles)) {
1217
LstNode ln;
1218
1219
ln = Lst_Find(makefiles, NULL, ReadAllMakefiles);
1220
if (ln != NULL)
1221
Fatal("%s: cannot open %s.", progname,
1222
(char *)Lst_Datum(ln));
1223
} else {
1224
p1 = Var_Subst(NULL, "${" MAKEFILE_PREFERENCE "}",
1225
VAR_CMD, 0);
1226
if (p1) {
1227
(void)str2Lst_Append(makefiles, p1, NULL);
1228
(void)Lst_Find(makefiles, NULL, ReadMakefile);
1229
free(p1);
1230
}
1231
}
1232
1233
/* In particular suppress .depend for '-r -V .OBJDIR -f /dev/null' */
1234
if (!noBuiltins || !printVars) {
1235
makeDependfile = Var_Subst(NULL, "${.MAKE.DEPENDFILE:T}",
1236
VAR_CMD, 0);
1237
doing_depend = TRUE;
1238
(void)ReadMakefile(makeDependfile, NULL);
1239
doing_depend = FALSE;
1240
}
1241
1242
MakeMode(NULL);
1243
1244
Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL, &p1), VAR_GLOBAL);
1245
if (p1)
1246
free(p1);
1247
1248
if (!compatMake)
1249
Job_ServerStart(maxJobTokens, jp_0, jp_1);
1250
if (DEBUG(JOB))
1251
fprintf(debug_file, "job_pipe %d %d, maxjobs %d, tokens %d, compat %d\n",
1252
jp_0, jp_1, maxJobs, maxJobTokens, compatMake);
1253
1254
Main_ExportMAKEFLAGS(TRUE); /* initial export */
1255
1256
/*
1257
* For compatibility, look at the directories in the VPATH variable
1258
* and add them to the search path, if the variable is defined. The
1259
* variable's value is in the same format as the PATH envariable, i.e.
1260
* <directory>:<directory>:<directory>...
1261
*/
1262
if (Var_Exists("VPATH", VAR_CMD)) {
1263
char *vpath, savec;
1264
/*
1265
* GCC stores string constants in read-only memory, but
1266
* Var_Subst will want to write this thing, so store it
1267
* in an array
1268
*/
1269
static char VPATH[] = "${VPATH}";
1270
1271
vpath = Var_Subst(NULL, VPATH, VAR_CMD, FALSE);
1272
path = vpath;
1273
do {
1274
/* skip to end of directory */
1275
for (cp = path; *cp != ':' && *cp != '\0'; cp++)
1276
continue;
1277
/* Save terminator character so know when to stop */
1278
savec = *cp;
1279
*cp = '\0';
1280
/* Add directory to search path */
1281
(void)Dir_AddDir(dirSearchPath, path);
1282
*cp = savec;
1283
path = cp + 1;
1284
} while (savec == ':');
1285
free(vpath);
1286
}
1287
1288
/*
1289
* Now that all search paths have been read for suffixes et al, it's
1290
* time to add the default search path to their lists...
1291
*/
1292
Suff_DoPaths();
1293
1294
/*
1295
* Propagate attributes through :: dependency lists.
1296
*/
1297
Targ_Propagate();
1298
1299
/* print the initial graph, if the user requested it */
1300
if (DEBUG(GRAPH1))
1301
Targ_PrintGraph(1);
1302
1303
/* print the values of any variables requested by the user */
1304
if (printVars) {
1305
LstNode ln;
1306
Boolean expandVars;
1307
1308
if (debugVflag)
1309
expandVars = FALSE;
1310
else
1311
expandVars = getBoolean(".MAKE.EXPAND_VARIABLES", FALSE);
1312
for (ln = Lst_First(variables); ln != NULL;
1313
ln = Lst_Succ(ln)) {
1314
char *var = (char *)Lst_Datum(ln);
1315
char *value;
1316
1317
if (strchr(var, '$')) {
1318
value = p1 = Var_Subst(NULL, var, VAR_GLOBAL, 0);
1319
} else if (expandVars) {
1320
char tmp[128];
1321
1322
if (snprintf(tmp, sizeof(tmp), "${%s}", var) >= (int)(sizeof(tmp)))
1323
Fatal("%s: variable name too big: %s",
1324
progname, var);
1325
value = p1 = Var_Subst(NULL, tmp, VAR_GLOBAL, 0);
1326
} else {
1327
value = Var_Value(var, VAR_GLOBAL, &p1);
1328
}
1329
printf("%s\n", value ? value : "");
1330
if (p1)
1331
free(p1);
1332
}
1333
} else {
1334
/*
1335
* Have now read the entire graph and need to make a list of
1336
* targets to create. If none was given on the command line,
1337
* we consult the parsing module to find the main target(s)
1338
* to create.
1339
*/
1340
if (Lst_IsEmpty(create))
1341
targs = Parse_MainName();
1342
else
1343
targs = Targ_FindList(create, TARG_CREATE);
1344
1345
if (!compatMake) {
1346
/*
1347
* Initialize job module before traversing the graph
1348
* now that any .BEGIN and .END targets have been read.
1349
* This is done only if the -q flag wasn't given
1350
* (to prevent the .BEGIN from being executed should
1351
* it exist).
1352
*/
1353
if (!queryFlag) {
1354
Job_Init();
1355
jobsRunning = TRUE;
1356
}
1357
1358
/* Traverse the graph, checking on all the targets */
1359
outOfDate = Make_Run(targs);
1360
} else {
1361
/*
1362
* Compat_Init will take care of creating all the
1363
* targets as well as initializing the module.
1364
*/
1365
Compat_Run(targs);
1366
}
1367
}
1368
1369
#ifdef CLEANUP
1370
Lst_Destroy(targs, NULL);
1371
Lst_Destroy(variables, NULL);
1372
Lst_Destroy(makefiles, NULL);
1373
Lst_Destroy(create, (FreeProc *)free);
1374
#endif
1375
1376
/* print the graph now it's been processed if the user requested it */
1377
if (DEBUG(GRAPH2))
1378
Targ_PrintGraph(2);
1379
1380
Trace_Log(MAKEEND, 0);
1381
1382
if (enterFlag)
1383
printf("%s: Leaving directory `%s'\n", progname, curdir);
1384
1385
Suff_End();
1386
Targ_End();
1387
Arch_End();
1388
Var_End();
1389
Parse_End();
1390
Dir_End();
1391
Job_End();
1392
Trace_End();
1393
1394
return outOfDate ? 1 : 0;
1395
}
1396
1397
/*-
1398
* ReadMakefile --
1399
* Open and parse the given makefile.
1400
*
1401
* Results:
1402
* 0 if ok. -1 if couldn't open file.
1403
*
1404
* Side Effects:
1405
* lots
1406
*/
1407
static int
1408
ReadMakefile(const void *p, const void *q MAKE_ATTR_UNUSED)
1409
{
1410
const char *fname = p; /* makefile to read */
1411
int fd;
1412
size_t len = MAXPATHLEN;
1413
char *name, *path = bmake_malloc(len);
1414
1415
if (!strcmp(fname, "-")) {
1416
Parse_File(NULL /*stdin*/, -1);
1417
Var_Set("MAKEFILE", "", VAR_INTERNAL, 0);
1418
} else {
1419
/* if we've chdir'd, rebuild the path name */
1420
if (strcmp(curdir, objdir) && *fname != '/') {
1421
size_t plen = strlen(curdir) + strlen(fname) + 2;
1422
if (len < plen)
1423
path = bmake_realloc(path, len = 2 * plen);
1424
1425
(void)snprintf(path, len, "%s/%s", curdir, fname);
1426
fd = open(path, O_RDONLY);
1427
if (fd != -1) {
1428
fname = path;
1429
goto found;
1430
}
1431
1432
/* If curdir failed, try objdir (ala .depend) */
1433
plen = strlen(objdir) + strlen(fname) + 2;
1434
if (len < plen)
1435
path = bmake_realloc(path, len = 2 * plen);
1436
(void)snprintf(path, len, "%s/%s", objdir, fname);
1437
fd = open(path, O_RDONLY);
1438
if (fd != -1) {
1439
fname = path;
1440
goto found;
1441
}
1442
} else {
1443
fd = open(fname, O_RDONLY);
1444
if (fd != -1)
1445
goto found;
1446
}
1447
/* look in -I and system include directories. */
1448
name = Dir_FindFile(fname, parseIncPath);
1449
if (!name)
1450
name = Dir_FindFile(fname,
1451
Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath);
1452
if (!name || (fd = open(name, O_RDONLY)) == -1) {
1453
if (name)
1454
free(name);
1455
free(path);
1456
return(-1);
1457
}
1458
fname = name;
1459
/*
1460
* set the MAKEFILE variable desired by System V fans -- the
1461
* placement of the setting here means it gets set to the last
1462
* makefile specified, as it is set by SysV make.
1463
*/
1464
found:
1465
if (!doing_depend)
1466
Var_Set("MAKEFILE", fname, VAR_INTERNAL, 0);
1467
Parse_File(fname, fd);
1468
}
1469
free(path);
1470
return(0);
1471
}
1472
1473
1474
1475
/*-
1476
* Cmd_Exec --
1477
* Execute the command in cmd, and return the output of that command
1478
* in a string.
1479
*
1480
* Results:
1481
* A string containing the output of the command, or the empty string
1482
* If errnum is not NULL, it contains the reason for the command failure
1483
*
1484
* Side Effects:
1485
* The string must be freed by the caller.
1486
*/
1487
char *
1488
Cmd_Exec(const char *cmd, const char **errnum)
1489
{
1490
const char *args[4]; /* Args for invoking the shell */
1491
int fds[2]; /* Pipe streams */
1492
int cpid; /* Child PID */
1493
int pid; /* PID from wait() */
1494
char *res; /* result */
1495
WAIT_T status; /* command exit status */
1496
Buffer buf; /* buffer to store the result */
1497
char *cp;
1498
int cc;
1499
1500
1501
*errnum = NULL;
1502
1503
if (!shellName)
1504
Shell_Init();
1505
/*
1506
* Set up arguments for shell
1507
*/
1508
args[0] = shellName;
1509
args[1] = "-c";
1510
args[2] = cmd;
1511
args[3] = NULL;
1512
1513
/*
1514
* Open a pipe for fetching its output
1515
*/
1516
if (pipe(fds) == -1) {
1517
*errnum = "Couldn't create pipe for \"%s\"";
1518
goto bad;
1519
}
1520
1521
/*
1522
* Fork
1523
*/
1524
switch (cpid = vFork()) {
1525
case 0:
1526
/*
1527
* Close input side of pipe
1528
*/
1529
(void)close(fds[0]);
1530
1531
/*
1532
* Duplicate the output stream to the shell's output, then
1533
* shut the extra thing down. Note we don't fetch the error
1534
* stream...why not? Why?
1535
*/
1536
(void)dup2(fds[1], 1);
1537
(void)close(fds[1]);
1538
1539
Var_ExportVars();
1540
1541
(void)execv(shellPath, UNCONST(args));
1542
_exit(1);
1543
/*NOTREACHED*/
1544
1545
case -1:
1546
*errnum = "Couldn't exec \"%s\"";
1547
goto bad;
1548
1549
default:
1550
/*
1551
* No need for the writing half
1552
*/
1553
(void)close(fds[1]);
1554
1555
Buf_Init(&buf, 0);
1556
1557
do {
1558
char result[BUFSIZ];
1559
cc = read(fds[0], result, sizeof(result));
1560
if (cc > 0)
1561
Buf_AddBytes(&buf, cc, result);
1562
}
1563
while (cc > 0 || (cc == -1 && errno == EINTR));
1564
1565
/*
1566
* Close the input side of the pipe.
1567
*/
1568
(void)close(fds[0]);
1569
1570
/*
1571
* Wait for the process to exit.
1572
*/
1573
while(((pid = waitpid(cpid, &status, 0)) != cpid) && (pid >= 0)) {
1574
JobReapChild(pid, status, FALSE);
1575
continue;
1576
}
1577
cc = Buf_Size(&buf);
1578
res = Buf_Destroy(&buf, FALSE);
1579
1580
if (cc == 0)
1581
*errnum = "Couldn't read shell's output for \"%s\"";
1582
1583
if (WIFSIGNALED(status))
1584
*errnum = "\"%s\" exited on a signal";
1585
else if (WEXITSTATUS(status) != 0)
1586
*errnum = "\"%s\" returned non-zero status";
1587
1588
/*
1589
* Null-terminate the result, convert newlines to spaces and
1590
* install it in the variable.
1591
*/
1592
res[cc] = '\0';
1593
cp = &res[cc];
1594
1595
if (cc > 0 && *--cp == '\n') {
1596
/*
1597
* A final newline is just stripped
1598
*/
1599
*cp-- = '\0';
1600
}
1601
while (cp >= res) {
1602
if (*cp == '\n') {
1603
*cp = ' ';
1604
}
1605
cp--;
1606
}
1607
break;
1608
}
1609
return res;
1610
bad:
1611
res = bmake_malloc(1);
1612
*res = '\0';
1613
return res;
1614
}
1615
1616
/*-
1617
* Error --
1618
* Print an error message given its format.
1619
*
1620
* Results:
1621
* None.
1622
*
1623
* Side Effects:
1624
* The message is printed.
1625
*/
1626
/* VARARGS */
1627
void
1628
Error(const char *fmt, ...)
1629
{
1630
va_list ap;
1631
FILE *err_file;
1632
1633
err_file = debug_file;
1634
if (err_file == stdout)
1635
err_file = stderr;
1636
(void)fflush(stdout);
1637
for (;;) {
1638
va_start(ap, fmt);
1639
fprintf(err_file, "%s: ", progname);
1640
(void)vfprintf(err_file, fmt, ap);
1641
va_end(ap);
1642
(void)fprintf(err_file, "\n");
1643
(void)fflush(err_file);
1644
if (err_file == stderr)
1645
break;
1646
err_file = stderr;
1647
}
1648
}
1649
1650
/*-
1651
* Fatal --
1652
* Produce a Fatal error message. If jobs are running, waits for them
1653
* to finish.
1654
*
1655
* Results:
1656
* None
1657
*
1658
* Side Effects:
1659
* The program exits
1660
*/
1661
/* VARARGS */
1662
void
1663
Fatal(const char *fmt, ...)
1664
{
1665
va_list ap;
1666
1667
va_start(ap, fmt);
1668
if (jobsRunning)
1669
Job_Wait();
1670
1671
(void)fflush(stdout);
1672
(void)vfprintf(stderr, fmt, ap);
1673
va_end(ap);
1674
(void)fprintf(stderr, "\n");
1675
(void)fflush(stderr);
1676
1677
PrintOnError(NULL, NULL);
1678
1679
if (DEBUG(GRAPH2) || DEBUG(GRAPH3))
1680
Targ_PrintGraph(2);
1681
Trace_Log(MAKEERROR, 0);
1682
exit(2); /* Not 1 so -q can distinguish error */
1683
}
1684
1685
/*
1686
* Punt --
1687
* Major exception once jobs are being created. Kills all jobs, prints
1688
* a message and exits.
1689
*
1690
* Results:
1691
* None
1692
*
1693
* Side Effects:
1694
* All children are killed indiscriminately and the program Lib_Exits
1695
*/
1696
/* VARARGS */
1697
void
1698
Punt(const char *fmt, ...)
1699
{
1700
va_list ap;
1701
1702
va_start(ap, fmt);
1703
(void)fflush(stdout);
1704
(void)fprintf(stderr, "%s: ", progname);
1705
(void)vfprintf(stderr, fmt, ap);
1706
va_end(ap);
1707
(void)fprintf(stderr, "\n");
1708
(void)fflush(stderr);
1709
1710
PrintOnError(NULL, NULL);
1711
1712
DieHorribly();
1713
}
1714
1715
/*-
1716
* DieHorribly --
1717
* Exit without giving a message.
1718
*
1719
* Results:
1720
* None
1721
*
1722
* Side Effects:
1723
* A big one...
1724
*/
1725
void
1726
DieHorribly(void)
1727
{
1728
if (jobsRunning)
1729
Job_AbortAll();
1730
if (DEBUG(GRAPH2))
1731
Targ_PrintGraph(2);
1732
Trace_Log(MAKEERROR, 0);
1733
exit(2); /* Not 1, so -q can distinguish error */
1734
}
1735
1736
/*
1737
* Finish --
1738
* Called when aborting due to errors in child shell to signal
1739
* abnormal exit.
1740
*
1741
* Results:
1742
* None
1743
*
1744
* Side Effects:
1745
* The program exits
1746
*/
1747
void
1748
Finish(int errors)
1749
/* number of errors encountered in Make_Make */
1750
{
1751
Fatal("%d error%s", errors, errors == 1 ? "" : "s");
1752
}
1753
1754
/*
1755
* eunlink --
1756
* Remove a file carefully, avoiding directories.
1757
*/
1758
int
1759
eunlink(const char *file)
1760
{
1761
struct stat st;
1762
1763
if (lstat(file, &st) == -1)
1764
return -1;
1765
1766
if (S_ISDIR(st.st_mode)) {
1767
errno = EISDIR;
1768
return -1;
1769
}
1770
return unlink(file);
1771
}
1772
1773
/*
1774
* execError --
1775
* Print why exec failed, avoiding stdio.
1776
*/
1777
void
1778
execError(const char *af, const char *av)
1779
{
1780
#ifdef USE_IOVEC
1781
int i = 0;
1782
struct iovec iov[8];
1783
#define IOADD(s) \
1784
(void)(iov[i].iov_base = UNCONST(s), \
1785
iov[i].iov_len = strlen(iov[i].iov_base), \
1786
i++)
1787
#else
1788
#define IOADD(s) (void)write(2, s, strlen(s))
1789
#endif
1790
1791
IOADD(progname);
1792
IOADD(": ");
1793
IOADD(af);
1794
IOADD("(");
1795
IOADD(av);
1796
IOADD(") failed (");
1797
IOADD(strerror(errno));
1798
IOADD(")\n");
1799
1800
#ifdef USE_IOVEC
1801
while (writev(2, iov, 8) == -1 && errno == EAGAIN)
1802
continue;
1803
#endif
1804
}
1805
1806
/*
1807
* usage --
1808
* exit with usage message
1809
*/
1810
static void
1811
usage(void)
1812
{
1813
char *p;
1814
if ((p = strchr(progname, '[')) != NULL)
1815
*p = '\0';
1816
1817
(void)fprintf(stderr,
1818
"usage: %s [-BeikNnqrstWwX] \n\
1819
[-C directory] [-D variable] [-d flags] [-f makefile]\n\
1820
[-I directory] [-J private] [-j max_jobs] [-m directory] [-T file]\n\
1821
[-V variable] [variable=value] [target ...]\n", progname);
1822
exit(2);
1823
}
1824
1825
1826
int
1827
PrintAddr(void *a, void *b)
1828
{
1829
printf("%lx ", (unsigned long) a);
1830
return b ? 0 : 0;
1831
}
1832
1833
1834
1835
void
1836
PrintOnError(GNode *gn, const char *s)
1837
{
1838
static GNode *en = NULL;
1839
char tmp[64];
1840
char *cp;
1841
1842
if (s)
1843
printf("%s", s);
1844
1845
printf("\n%s: stopped in %s\n", progname, curdir);
1846
1847
if (en)
1848
return; /* we've been here! */
1849
if (gn) {
1850
/*
1851
* We can print this even if there is no .ERROR target.
1852
*/
1853
Var_Set(".ERROR_TARGET", gn->name, VAR_GLOBAL, 0);
1854
}
1855
strncpy(tmp, "${MAKE_PRINT_VAR_ON_ERROR:@v@$v='${$v}'\n@}",
1856
sizeof(tmp) - 1);
1857
cp = Var_Subst(NULL, tmp, VAR_GLOBAL, 0);
1858
if (cp) {
1859
if (*cp)
1860
printf("%s", cp);
1861
free(cp);
1862
}
1863
/*
1864
* Finally, see if there is a .ERROR target, and run it if so.
1865
*/
1866
en = Targ_FindNode(".ERROR", TARG_NOCREATE);
1867
if (en) {
1868
en->type |= OP_SPECIAL;
1869
Compat_Make(en, en);
1870
}
1871
}
1872
1873
void
1874
Main_ExportMAKEFLAGS(Boolean first)
1875
{
1876
static int once = 1;
1877
char tmp[64];
1878
char *s;
1879
1880
if (once != first)
1881
return;
1882
once = 0;
1883
1884
strncpy(tmp, "${.MAKEFLAGS} ${.MAKEOVERRIDES:O:u:@v@$v=${$v:Q}@}",
1885
sizeof(tmp));
1886
s = Var_Subst(NULL, tmp, VAR_CMD, 0);
1887
if (s && *s) {
1888
#ifdef POSIX
1889
setenv("MAKEFLAGS", s, 1);
1890
#else
1891
setenv("MAKE", s, 1);
1892
#endif
1893
}
1894
}
1895
1896
char *
1897
getTmpdir(void)
1898
{
1899
static char *tmpdir = NULL;
1900
1901
if (!tmpdir) {
1902
struct stat st;
1903
1904
/*
1905
* Honor $TMPDIR but only if it is valid.
1906
* Ensure it ends with /.
1907
*/
1908
tmpdir = Var_Subst(NULL, "${TMPDIR:tA:U" _PATH_TMP "}/", VAR_GLOBAL, 0);
1909
if (stat(tmpdir, &st) < 0 || !S_ISDIR(st.st_mode)) {
1910
free(tmpdir);
1911
tmpdir = bmake_strdup(_PATH_TMP);
1912
}
1913
}
1914
return tmpdir;
1915
}
1916
1917
/*
1918
* Create and open a temp file using "pattern".
1919
* If "fnamep" is provided set it to a copy of the filename created.
1920
* Otherwise unlink the file once open.
1921
*/
1922
int
1923
mkTempFile(const char *pattern, char **fnamep)
1924
{
1925
static char *tmpdir = NULL;
1926
char tfile[MAXPATHLEN];
1927
int fd;
1928
1929
if (!pattern)
1930
pattern = TMPPAT;
1931
if (!tmpdir)
1932
tmpdir = getTmpdir();
1933
if (pattern[0] == '/') {
1934
snprintf(tfile, sizeof(tfile), "%s", pattern);
1935
} else {
1936
snprintf(tfile, sizeof(tfile), "%s%s", tmpdir, pattern);
1937
}
1938
if ((fd = mkstemp(tfile)) < 0)
1939
Punt("Could not create temporary file %s: %s", tfile, strerror(errno));
1940
if (fnamep) {
1941
*fnamep = bmake_strdup(tfile);
1942
} else {
1943
unlink(tfile); /* we just want the descriptor */
1944
}
1945
return fd;
1946
}
1947
1948
1949
/*
1950
* Return a Boolean based on setting of a knob.
1951
*
1952
* If the knob is not set, the supplied default is the return value.
1953
* If set, anything that looks or smells like "No", "False", "Off", "0" etc,
1954
* is FALSE, otherwise TRUE.
1955
*/
1956
Boolean
1957
getBoolean(const char *name, Boolean bf)
1958
{
1959
char tmp[64];
1960
char *cp;
1961
1962
if (snprintf(tmp, sizeof(tmp), "${%s:tl}", name) < (int)(sizeof(tmp))) {
1963
cp = Var_Subst(NULL, tmp, VAR_GLOBAL, 0);
1964
1965
if (cp) {
1966
switch(*cp) {
1967
case '\0': /* not set - the default wins */
1968
break;
1969
case '0':
1970
case 'f':
1971
case 'n':
1972
bf = FALSE;
1973
break;
1974
case 'o':
1975
switch (cp[1]) {
1976
case 'f':
1977
bf = FALSE;
1978
break;
1979
default:
1980
bf = TRUE;
1981
break;
1982
}
1983
break;
1984
default:
1985
bf = TRUE;
1986
break;
1987
}
1988
free(cp);
1989
}
1990
}
1991
return (bf);
1992
}
Loggerhead is a web-based interface for Breezy
Version: 2.0.1