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- Committer: Bazaar Package Importer
- Author(s): Matthias Klose
- Date: 2011-01-19 06:48:29 UTC
- Revision ID: james.westby@ubuntu.com-20110119064829-drz1dzha126g6x9r
Tags: 1.111-2ubuntu1
--whole-archive is a linker option, not a compiler option.
- files added:
- .pc
- .pc/100_mk.diff
- .pc/100_mk.diff/mk
- .pc/110_mkdep.diff
- .pc/120_fixes.diff
- .pc/130_maxpathlen.diff
- files removed:
- debian/patches/.dpkg-source-applied
- files modified:
- debian/changelog
added
removed
.pc/120_fixes.diff/main.c
1
/* $NetBSD: main.c,v 1.111 2005/06/24 02:53:27 lukem 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 1.111 2005/06/24 02:53:27 lukem Exp $";
73
#else
74
#include <sys/cdefs.h>
75
#ifndef lint
76
__COPYRIGHT("@(#) Copyright (c) 1988, 1989, 1990, 1993\n\
77
The Regents of the University of California. All rights reserved.\n");
78
#endif /* not lint */
79
80
#ifndef lint
81
#if 0
82
static char sccsid[] = "@(#)main.c 8.3 (Berkeley) 3/19/94";
83
#else
84
__RCSID("$NetBSD: main.c,v 1.111 2005/06/24 02:53:27 lukem 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/signal.h>
121
#include <sys/stat.h>
122
#ifdef MAKE_NATIVE
123
#include <sys/utsname.h>
124
#endif
125
#include <sys/wait.h>
126
127
#include <errno.h>
128
#include <fcntl.h>
129
#include <stdarg.h>
130
#include <stdio.h>
131
#include <stdlib.h>
132
#include <time.h>
133
134
#include "make.h"
135
#include "hash.h"
136
#include "dir.h"
137
#include "job.h"
138
#include "pathnames.h"
139
#include "trace.h"
140
141
#ifdef USE_IOVEC
142
#include <sys/uio.h>
143
#endif
144
145
#ifndef DEFMAXLOCAL
146
#define DEFMAXLOCAL DEFMAXJOBS
147
#endif /* DEFMAXLOCAL */
148
149
Lst create; /* Targets to be made */
150
time_t now; /* Time at start of make */
151
GNode *DEFAULT; /* .DEFAULT node */
152
Boolean allPrecious; /* .PRECIOUS given on line by itself */
153
154
static Boolean noBuiltins; /* -r flag */
155
static Lst makefiles; /* ordered list of makefiles to read */
156
static Boolean printVars; /* print value of one or more vars */
157
static Lst variables; /* list of variables to print */
158
int maxJobs; /* -j argument */
159
static int maxLocal; /* -L argument */
160
Boolean compatMake; /* -B argument */
161
Boolean debug; /* -d flag */
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 usePipes; /* !-P 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
Boolean varNoExportEnv; /* -X flag */
175
static Boolean jobsRunning; /* TRUE if the jobs might be running */
176
static const char * tracefile;
177
static char * Check_Cwd_av(int, char **, int);
178
static void MainParseArgs(int, char **);
179
static int ReadMakefile(ClientData, ClientData);
180
static void usage(void);
181
182
static char curdir[MAXPATHLEN + 1]; /* startup directory */
183
static char objdir[MAXPATHLEN + 1]; /* where we chdir'ed to */
184
char *progname; /* the program name */
185
186
Boolean forceJobs = FALSE;
187
188
extern Lst parseIncPath;
189
190
/*-
191
* MainParseArgs --
192
* Parse a given argument vector. Called from main() and from
193
* Main_ParseArgLine() when the .MAKEFLAGS target is used.
194
*
195
* XXX: Deal with command line overriding .MAKEFLAGS in makefile
196
*
197
* Results:
198
* None
199
*
200
* Side Effects:
201
* Various global and local flags will be set depending on the flags
202
* given
203
*/
204
static void
205
MainParseArgs(int argc, char **argv)
206
{
207
char *p;
208
int c;
209
int arginc;
210
char *argvalue;
211
const char *getopt_def;
212
char *optscan;
213
Boolean inOption, dashDash = FALSE;
214
char found_path[MAXPATHLEN + 1]; /* for searching for sys.mk */
215
216
#ifdef REMOTE
217
# define OPTFLAGS "BD:I:J:L:NPST:V:WXd:ef:ij:km:nqrst"
218
#else
219
# define OPTFLAGS "BD:I:J:NPST:V:WXd:ef:ij:km:nqrst"
220
#endif
221
#undef optarg
222
#define optarg argvalue
223
/* Can't actually use getopt(3) because rescanning is not portable */
224
225
getopt_def = OPTFLAGS;
226
rearg:
227
inOption = FALSE;
228
optscan = NULL;
229
while(argc > 1) {
230
char *getopt_spec;
231
if(!inOption)
232
optscan = argv[1];
233
c = *optscan++;
234
arginc = 0;
235
if(inOption) {
236
if(c == '\0') {
237
++argv;
238
--argc;
239
inOption = FALSE;
240
continue;
241
}
242
} else {
243
if (c != '-' || dashDash)
244
break;
245
inOption = TRUE;
246
c = *optscan++;
247
}
248
/* '-' found at some earlier point */
249
getopt_spec = strchr(getopt_def, c);
250
if(c != '\0' && getopt_spec != NULL && getopt_spec[1] == ':') {
251
/* -<something> found, and <something> should have an arg */
252
inOption = FALSE;
253
arginc = 1;
254
argvalue = optscan;
255
if(*argvalue == '\0') {
256
if (argc < 3) {
257
(void)fprintf(stderr,
258
"%s: option requires "
259
"an argument -- %c\n",
260
progname, c);
261
usage();
262
}
263
argvalue = argv[2];
264
arginc = 2;
265
}
266
} else {
267
argvalue = NULL;
268
}
269
switch(c) {
270
case '\0':
271
arginc = 1;
272
inOption = FALSE;
273
break;
274
case 'B':
275
compatMake = TRUE;
276
Var_Append(MAKEFLAGS, "-B", VAR_GLOBAL);
277
break;
278
case 'D':
279
Var_Set(optarg, "1", VAR_GLOBAL, 0);
280
Var_Append(MAKEFLAGS, "-D", VAR_GLOBAL);
281
Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
282
break;
283
case 'I':
284
Parse_AddIncludeDir(optarg);
285
Var_Append(MAKEFLAGS, "-I", VAR_GLOBAL);
286
Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
287
break;
288
case 'J':
289
if (sscanf(optarg, "%d,%d", &job_pipe[0], &job_pipe[1]) != 2) {
290
/* backslash to avoid trigraph ??) */
291
(void)fprintf(stderr,
292
"%s: internal error -- J option malformed (%s?\?)\n",
293
progname, optarg);
294
usage();
295
}
296
if ((fcntl(job_pipe[0], F_GETFD, 0) < 0) ||
297
(fcntl(job_pipe[1], F_GETFD, 0) < 0)) {
298
#if 0
299
(void)fprintf(stderr,
300
"%s: warning -- J descriptors were closed!\n",
301
progname);
302
#endif
303
job_pipe[0] = -1;
304
job_pipe[1] = -1;
305
compatMake = TRUE;
306
} else {
307
Var_Append(MAKEFLAGS, "-J", VAR_GLOBAL);
308
Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
309
jobServer = TRUE;
310
}
311
break;
312
#ifdef REMOTE
313
case 'L':
314
maxLocal = strtol(optarg, &p, 0);
315
if (*p != '\0' || maxLocal < 1) {
316
(void) fprintf(stderr, "%s: illegal argument to -L -- must be positive integer!\n",
317
progname);
318
exit(1);
319
}
320
Var_Append(MAKEFLAGS, "-L", VAR_GLOBAL);
321
Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
322
break;
323
#endif
324
case 'N':
325
noExecute = TRUE;
326
noRecursiveExecute = TRUE;
327
Var_Append(MAKEFLAGS, "-N", VAR_GLOBAL);
328
break;
329
case 'P':
330
usePipes = FALSE;
331
Var_Append(MAKEFLAGS, "-P", VAR_GLOBAL);
332
break;
333
case 'S':
334
keepgoing = FALSE;
335
Var_Append(MAKEFLAGS, "-S", VAR_GLOBAL);
336
break;
337
case 'T':
338
tracefile = estrdup(optarg);
339
Var_Append(MAKEFLAGS, "-T", VAR_GLOBAL);
340
Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
341
break;
342
case 'V':
343
printVars = TRUE;
344
(void)Lst_AtEnd(variables, (ClientData)optarg);
345
Var_Append(MAKEFLAGS, "-V", VAR_GLOBAL);
346
Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
347
break;
348
case 'W':
349
parseWarnFatal = TRUE;
350
break;
351
case 'X':
352
varNoExportEnv = TRUE;
353
Var_Append(MAKEFLAGS, "-X", VAR_GLOBAL);
354
break;
355
case 'd': {
356
char *modules = optarg;
357
358
for (; *modules; ++modules)
359
switch (*modules) {
360
case 'A':
361
debug = ~0;
362
break;
363
case 'a':
364
debug |= DEBUG_ARCH;
365
break;
366
case 'c':
367
debug |= DEBUG_COND;
368
break;
369
case 'd':
370
debug |= DEBUG_DIR;
371
break;
372
case 'e':
373
debug |= DEBUG_ERROR;
374
break;
375
case 'f':
376
debug |= DEBUG_FOR;
377
break;
378
case 'g':
379
if (modules[1] == '1') {
380
debug |= DEBUG_GRAPH1;
381
++modules;
382
}
383
else if (modules[1] == '2') {
384
debug |= DEBUG_GRAPH2;
385
++modules;
386
}
387
else if (modules[1] == '3') {
388
debug |= DEBUG_GRAPH3;
389
++modules;
390
}
391
break;
392
case 'j':
393
debug |= DEBUG_JOB;
394
break;
395
case 'm':
396
debug |= DEBUG_MAKE;
397
break;
398
case 'n':
399
debug |= DEBUG_SCRIPT;
400
break;
401
case 's':
402
debug |= DEBUG_SUFF;
403
break;
404
case 't':
405
debug |= DEBUG_TARG;
406
break;
407
case 'v':
408
debug |= DEBUG_VAR;
409
break;
410
case 'x':
411
debug |= DEBUG_SHELL;
412
break;
413
default:
414
(void)fprintf(stderr,
415
"%s: illegal argument to d option -- %c\n",
416
progname, *modules);
417
usage();
418
}
419
Var_Append(MAKEFLAGS, "-d", VAR_GLOBAL);
420
Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
421
break;
422
}
423
case 'e':
424
checkEnvFirst = TRUE;
425
Var_Append(MAKEFLAGS, "-e", VAR_GLOBAL);
426
break;
427
case 'f':
428
(void)Lst_AtEnd(makefiles, (ClientData)optarg);
429
break;
430
case 'i':
431
ignoreErrors = TRUE;
432
Var_Append(MAKEFLAGS, "-i", VAR_GLOBAL);
433
break;
434
case 'j':
435
forceJobs = TRUE;
436
maxJobs = strtol(optarg, &p, 0);
437
if (*p != '\0' || maxJobs < 1) {
438
(void) fprintf(stderr, "%s: illegal argument to -j -- must be positive integer!\n",
439
progname);
440
exit(1);
441
}
442
#ifndef REMOTE
443
maxLocal = maxJobs;
444
#endif
445
Var_Append(MAKEFLAGS, "-j", VAR_GLOBAL);
446
Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
447
break;
448
case 'k':
449
keepgoing = TRUE;
450
Var_Append(MAKEFLAGS, "-k", VAR_GLOBAL);
451
break;
452
case 'm':
453
/* look for magic parent directory search string */
454
if (strncmp(".../", optarg, 4) == 0) {
455
if (!Dir_FindHereOrAbove(curdir, optarg+4,
456
found_path, sizeof(found_path)))
457
break; /* nothing doing */
458
(void) Dir_AddDir(sysIncPath, found_path);
459
460
} else {
461
(void) Dir_AddDir(sysIncPath, optarg);
462
}
463
Var_Append(MAKEFLAGS, "-m", VAR_GLOBAL);
464
Var_Append(MAKEFLAGS, optarg, VAR_GLOBAL);
465
break;
466
case 'n':
467
noExecute = TRUE;
468
Var_Append(MAKEFLAGS, "-n", VAR_GLOBAL);
469
break;
470
case 'q':
471
queryFlag = TRUE;
472
/* Kind of nonsensical, wot? */
473
Var_Append(MAKEFLAGS, "-q", VAR_GLOBAL);
474
break;
475
case 'r':
476
noBuiltins = TRUE;
477
Var_Append(MAKEFLAGS, "-r", VAR_GLOBAL);
478
break;
479
case 's':
480
beSilent = TRUE;
481
Var_Append(MAKEFLAGS, "-s", VAR_GLOBAL);
482
break;
483
case 't':
484
touchFlag = TRUE;
485
Var_Append(MAKEFLAGS, "-t", VAR_GLOBAL);
486
break;
487
case '-':
488
dashDash = TRUE;
489
break;
490
default:
491
case '?':
492
usage();
493
}
494
argv += arginc;
495
argc -= arginc;
496
}
497
498
oldVars = TRUE;
499
500
/*
501
* See if the rest of the arguments are variable assignments and
502
* perform them if so. Else take them to be targets and stuff them
503
* on the end of the "create" list.
504
*/
505
for (; argc > 1; ++argv, --argc)
506
if (Parse_IsVar(argv[1])) {
507
Parse_DoVar(argv[1], VAR_CMD);
508
} else {
509
if (!*argv[1])
510
Punt("illegal (null) argument.");
511
if (*argv[1] == '-' && !dashDash)
512
goto rearg;
513
(void)Lst_AtEnd(create, (ClientData)estrdup(argv[1]));
514
}
515
}
516
517
/*-
518
* Main_ParseArgLine --
519
* Used by the parse module when a .MFLAGS or .MAKEFLAGS target
520
* is encountered and by main() when reading the .MAKEFLAGS envariable.
521
* Takes a line of arguments and breaks it into its
522
* component words and passes those words and the number of them to the
523
* MainParseArgs function.
524
* The line should have all its leading whitespace removed.
525
*
526
* Input:
527
* line Line to fracture
528
*
529
* Results:
530
* None
531
*
532
* Side Effects:
533
* Only those that come from the various arguments.
534
*/
535
void
536
Main_ParseArgLine(char *line)
537
{
538
char **argv; /* Manufactured argument vector */
539
int argc; /* Number of arguments in argv */
540
char *args; /* Space used by the args */
541
char *buf, *p1;
542
char *argv0 = Var_Value(".MAKE", VAR_GLOBAL, &p1);
543
size_t len;
544
545
if (line == NULL)
546
return;
547
for (; *line == ' '; ++line)
548
continue;
549
if (!*line)
550
return;
551
552
buf = emalloc(len = strlen(line) + strlen(argv0) + 2);
553
(void)snprintf(buf, len, "%s %s", argv0, line);
554
if (p1)
555
free(p1);
556
557
argv = brk_string(buf, &argc, TRUE, &args);
558
free(buf);
559
MainParseArgs(argc, argv);
560
561
free(args);
562
free(argv);
563
}
564
565
Boolean
566
Main_SetObjdir(const char *path)
567
{
568
struct stat sb;
569
char *p = NULL;
570
char buf[MAXPATHLEN + 1];
571
Boolean rc = FALSE;
572
573
/* expand variable substitutions */
574
if (strchr(path, '$') != 0) {
575
snprintf(buf, MAXPATHLEN, "%s", path);
576
path = p = Var_Subst(NULL, buf, VAR_GLOBAL, 0);
577
}
578
579
if (path[0] != '/') {
580
snprintf(buf, MAXPATHLEN, "%s/%s", curdir, path);
581
path = buf;
582
}
583
584
/* look for the directory and try to chdir there */
585
if (stat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) {
586
if (chdir(path)) {
587
(void)fprintf(stderr, "make warning: %s: %s.\n",
588
path, strerror(errno));
589
} else {
590
strncpy(objdir, path, MAXPATHLEN);
591
Var_Set(".OBJDIR", objdir, VAR_GLOBAL, 0);
592
setenv("PWD", objdir, 1);
593
Dir_InitDot();
594
rc = TRUE;
595
}
596
}
597
598
if (p)
599
free(p);
600
return rc;
601
}
602
603
604
/*-
605
* main --
606
* The main function, for obvious reasons. Initializes variables
607
* and a few modules, then parses the arguments give it in the
608
* environment and on the command line. Reads the system makefile
609
* followed by either Makefile, makefile or the file given by the
610
* -f argument. Sets the .MAKEFLAGS PMake variable based on all the
611
* flags it has received by then uses either the Make or the Compat
612
* module to create the initial list of targets.
613
*
614
* Results:
615
* If -q was given, exits -1 if anything was out-of-date. Else it exits
616
* 0.
617
*
618
* Side Effects:
619
* The program exits when done. Targets are created. etc. etc. etc.
620
*/
621
int
622
main(int argc, char **argv)
623
{
624
Lst targs; /* target nodes to create -- passed to Make_Init */
625
Boolean outOfDate = TRUE; /* FALSE if all targets up to date */
626
struct stat sb, sa;
627
char *p1, *path, *pwd;
628
char mdpath[MAXPATHLEN];
629
char *machine = getenv("MACHINE");
630
const char *machine_arch = getenv("MACHINE_ARCH");
631
char *syspath = getenv("MAKESYSPATH");
632
Lst sysMkPath; /* Path of sys.mk */
633
char *cp = NULL, *start;
634
/* avoid faults on read-only strings */
635
static char defsyspath[] = _PATH_DEFSYSPATH;
636
char found_path[MAXPATHLEN + 1]; /* for searching for sys.mk */
637
struct timeval rightnow; /* to initialize random seed */
638
639
/*
640
* Set the seed to produce a different random sequences
641
* on each program execution.
642
*/
643
gettimeofday(&rightnow, NULL);
644
srandom(rightnow.tv_sec + rightnow.tv_usec);
645
646
if ((progname = strrchr(argv[0], '/')) != NULL)
647
progname++;
648
else
649
progname = argv[0];
650
#ifdef RLIMIT_NOFILE
651
/*
652
* get rid of resource limit on file descriptors
653
*/
654
{
655
struct rlimit rl;
656
if (getrlimit(RLIMIT_NOFILE, &rl) != -1 &&
657
rl.rlim_cur != rl.rlim_max) {
658
rl.rlim_cur = rl.rlim_max;
659
(void) setrlimit(RLIMIT_NOFILE, &rl);
660
}
661
}
662
#endif
663
/*
664
* Find where we are and take care of PWD for the automounter...
665
* All this code is so that we know where we are when we start up
666
* on a different machine with pmake.
667
*/
668
if (getcwd(curdir, MAXPATHLEN) == NULL) {
669
(void)fprintf(stderr, "%s: %s.\n", progname, strerror(errno));
670
exit(2);
671
}
672
673
if (stat(curdir, &sa) == -1) {
674
(void)fprintf(stderr, "%s: %s: %s.\n",
675
progname, curdir, strerror(errno));
676
exit(2);
677
}
678
679
/*
680
* Overriding getcwd() with $PWD totally breaks MAKEOBJDIRPREFIX
681
* since the value of curdir can very depending on how we got
682
* here. Ie sitting at a shell prompt (shell that provides $PWD)
683
* or via subdir.mk in which case its likely a shell which does
684
* not provide it.
685
* So, to stop it breaking this case only, we ignore PWD if
686
* MAKEOBJDIRPREFIX is set or MAKEOBJDIR contains a transform.
687
*/
688
if ((pwd = getenv("PWD")) != NULL && getenv("MAKEOBJDIRPREFIX") == NULL) {
689
const char *makeobjdir = getenv("MAKEOBJDIR");
690
691
if (makeobjdir == NULL || !strchr(makeobjdir, '$')) {
692
if (stat(pwd, &sb) == 0 && sa.st_ino == sb.st_ino &&
693
sa.st_dev == sb.st_dev)
694
(void) strncpy(curdir, pwd, MAXPATHLEN);
695
}
696
}
697
698
/*
699
* Get the name of this type of MACHINE from utsname
700
* so we can share an executable for similar machines.
701
* (i.e. m68k: amiga hp300, mac68k, sun3, ...)
702
*
703
* Note that both MACHINE and MACHINE_ARCH are decided at
704
* run-time.
705
*/
706
if (!machine) {
707
#ifdef MAKE_NATIVE
708
struct utsname utsname;
709
710
if (uname(&utsname) == -1) {
711
(void)fprintf(stderr, "%s: uname failed (%s).\n", progname,
712
strerror(errno));
713
exit(2);
714
}
715
machine = utsname.machine;
716
#else
717
#ifdef MAKE_MACHINE
718
machine = MAKE_MACHINE;
719
#else
720
machine = "unknown";
721
#endif
722
#endif
723
}
724
725
if (!machine_arch) {
726
#ifndef MACHINE_ARCH
727
#ifdef MAKE_MACHINE_ARCH
728
machine_arch = MAKE_MACHINE_ARCH;
729
#else
730
machine_arch = "unknown";
731
#endif
732
#else
733
machine_arch = MACHINE_ARCH;
734
#endif
735
}
736
737
/*
738
* Just in case MAKEOBJDIR wants us to do something tricky.
739
*/
740
Var_Init(); /* Initialize the lists of variables for
741
* parsing arguments */
742
Var_Set(".CURDIR", curdir, VAR_GLOBAL, 0);
743
Var_Set("MACHINE", machine, VAR_GLOBAL, 0);
744
Var_Set("MACHINE_ARCH", machine_arch, VAR_GLOBAL, 0);
745
#ifdef MAKE_VERSION
746
Var_Set("MAKE_VERSION", MAKE_VERSION, VAR_GLOBAL, 0);
747
#endif
748
Var_Set(".newline", "\n", VAR_GLOBAL, 0); /* handy for :@ loops */
749
750
/*
751
* Find the .OBJDIR. If MAKEOBJDIRPREFIX, or failing that,
752
* MAKEOBJDIR is set in the environment, try only that value
753
* and fall back to .CURDIR if it does not exist.
754
*
755
* Otherwise, try _PATH_OBJDIR.MACHINE, _PATH_OBJDIR, and
756
* finally _PATH_OBJDIRPREFIX`pwd`, in that order. If none
757
* of these paths exist, just use .CURDIR.
758
*/
759
Dir_Init(curdir);
760
(void) Main_SetObjdir(curdir);
761
762
if ((path = getenv("MAKEOBJDIRPREFIX")) != NULL) {
763
(void) snprintf(mdpath, MAXPATHLEN, "%s%s", path, curdir);
764
(void) Main_SetObjdir(mdpath);
765
} else if ((path = getenv("MAKEOBJDIR")) != NULL) {
766
(void) Main_SetObjdir(path);
767
} else {
768
(void) snprintf(mdpath, MAXPATHLEN, "%s.%s", _PATH_OBJDIR, machine);
769
if (!Main_SetObjdir(mdpath) && !Main_SetObjdir(_PATH_OBJDIR)) {
770
(void) snprintf(mdpath, MAXPATHLEN, "%s%s",
771
_PATH_OBJDIRPREFIX, curdir);
772
(void) Main_SetObjdir(mdpath);
773
}
774
}
775
776
create = Lst_Init(FALSE);
777
makefiles = Lst_Init(FALSE);
778
printVars = FALSE;
779
variables = Lst_Init(FALSE);
780
beSilent = FALSE; /* Print commands as executed */
781
ignoreErrors = FALSE; /* Pay attention to non-zero returns */
782
noExecute = FALSE; /* Execute all commands */
783
noRecursiveExecute = FALSE; /* Execute all .MAKE targets */
784
keepgoing = FALSE; /* Stop on error */
785
allPrecious = FALSE; /* Remove targets when interrupted */
786
queryFlag = FALSE; /* This is not just a check-run */
787
noBuiltins = FALSE; /* Read the built-in rules */
788
touchFlag = FALSE; /* Actually update targets */
789
usePipes = TRUE; /* Catch child output in pipes */
790
debug = 0; /* No debug verbosity, please. */
791
jobsRunning = FALSE;
792
793
maxLocal = DEFMAXLOCAL; /* Set default local max concurrency */
794
#ifdef REMOTE
795
maxJobs = DEFMAXJOBS; /* Set default max concurrency */
796
#else
797
maxJobs = maxLocal;
798
#endif
799
compatMake = FALSE; /* No compat mode */
800
801
802
/*
803
* Initialize the parsing, directory and variable modules to prepare
804
* for the reading of inclusion paths and variable settings on the
805
* command line
806
*/
807
808
/*
809
* Initialize various variables.
810
* MAKE also gets this name, for compatibility
811
* .MAKEFLAGS gets set to the empty string just in case.
812
* MFLAGS also gets initialized empty, for compatibility.
813
*/
814
Parse_Init();
815
Var_Set("MAKE", argv[0], VAR_GLOBAL, 0);
816
Var_Set(".MAKE", argv[0], VAR_GLOBAL, 0);
817
Var_Set(MAKEFLAGS, "", VAR_GLOBAL, 0);
818
Var_Set(MAKEOVERRIDES, "", VAR_GLOBAL, 0);
819
Var_Set("MFLAGS", "", VAR_GLOBAL, 0);
820
Var_Set(".ALLTARGETS", "", VAR_GLOBAL, 0);
821
822
/*
823
* First snag any flags out of the MAKE environment variable.
824
* (Note this is *not* MAKEFLAGS since /bin/make uses that and it's
825
* in a different format).
826
*/
827
#ifdef POSIX
828
Main_ParseArgLine(getenv("MAKEFLAGS"));
829
#else
830
Main_ParseArgLine(getenv("MAKE"));
831
#endif
832
833
MainParseArgs(argc, argv);
834
835
/*
836
* Be compatible if user did not specify -j and did not explicitly
837
* turned compatibility on
838
*/
839
if (!compatMake && !forceJobs) {
840
compatMake = TRUE;
841
}
842
843
/*
844
* Initialize archive, target and suffix modules in preparation for
845
* parsing the makefile(s)
846
*/
847
Arch_Init();
848
Targ_Init();
849
Suff_Init();
850
Trace_Init(tracefile);
851
852
DEFAULT = NILGNODE;
853
(void)time(&now);
854
855
Trace_Log(MAKESTART, NULL);
856
857
/*
858
* Set up the .TARGETS variable to contain the list of targets to be
859
* created. If none specified, make the variable empty -- the parser
860
* will fill the thing in with the default or .MAIN target.
861
*/
862
if (!Lst_IsEmpty(create)) {
863
LstNode ln;
864
865
for (ln = Lst_First(create); ln != NILLNODE;
866
ln = Lst_Succ(ln)) {
867
char *name = (char *)Lst_Datum(ln);
868
869
Var_Append(".TARGETS", name, VAR_GLOBAL);
870
}
871
} else
872
Var_Set(".TARGETS", "", VAR_GLOBAL, 0);
873
874
875
/*
876
* If no user-supplied system path was given (through the -m option)
877
* add the directories from the DEFSYSPATH (more than one may be given
878
* as dir1:...:dirn) to the system include path.
879
*/
880
if (syspath == NULL || *syspath == '\0')
881
syspath = defsyspath;
882
else
883
syspath = strdup(syspath);
884
885
for (start = syspath; *start != '\0'; start = cp) {
886
for (cp = start; *cp != '\0' && *cp != ':'; cp++)
887
continue;
888
if (*cp == ':') {
889
*cp++ = '\0';
890
}
891
/* look for magic parent directory search string */
892
if (strncmp(".../", start, 4) != 0) {
893
(void) Dir_AddDir(defIncPath, start);
894
} else {
895
if (Dir_FindHereOrAbove(curdir, start+4,
896
found_path, sizeof(found_path))) {
897
(void) Dir_AddDir(defIncPath, found_path);
898
}
899
}
900
}
901
if (syspath != defsyspath)
902
free(syspath);
903
904
/*
905
* Read in the built-in rules first, followed by the specified
906
* makefile, if it was (makefile != (char *) NULL), or the default
907
* makefile and Makefile, in that order, if it wasn't.
908
*/
909
if (!noBuiltins) {
910
LstNode ln;
911
912
sysMkPath = Lst_Init(FALSE);
913
Dir_Expand(_PATH_DEFSYSMK,
914
Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath,
915
sysMkPath);
916
if (Lst_IsEmpty(sysMkPath))
917
Fatal("%s: no system rules (%s).", progname,
918
_PATH_DEFSYSMK);
919
ln = Lst_Find(sysMkPath, (ClientData)NULL, ReadMakefile);
920
if (ln != NILLNODE)
921
Fatal("%s: cannot open %s.", progname,
922
(char *)Lst_Datum(ln));
923
}
924
925
if (!Lst_IsEmpty(makefiles)) {
926
LstNode ln;
927
928
ln = Lst_Find(makefiles, (ClientData)NULL, ReadMakefile);
929
if (ln != NILLNODE)
930
Fatal("%s: cannot open %s.", progname,
931
(char *)Lst_Datum(ln));
932
} else if (!ReadMakefile(UNCONST("makefile"), NULL))
933
(void)ReadMakefile(UNCONST("Makefile"), NULL);
934
935
(void)ReadMakefile(UNCONST(".depend"), NULL);
936
937
Var_Append("MFLAGS", Var_Value(MAKEFLAGS, VAR_GLOBAL, &p1), VAR_GLOBAL);
938
if (p1)
939
free(p1);
940
941
if (!jobServer && !compatMake)
942
Job_ServerStart(maxJobs);
943
if (DEBUG(JOB))
944
printf("job_pipe %d %d, maxjobs %d maxlocal %d compat %d\n", job_pipe[0], job_pipe[1], maxJobs,
945
maxLocal, compatMake);
946
947
Main_ExportMAKEFLAGS(TRUE); /* initial export */
948
949
Check_Cwd_av(0, NULL, 0); /* initialize it */
950
951
952
/*
953
* For compatibility, look at the directories in the VPATH variable
954
* and add them to the search path, if the variable is defined. The
955
* variable's value is in the same format as the PATH envariable, i.e.
956
* <directory>:<directory>:<directory>...
957
*/
958
if (Var_Exists("VPATH", VAR_CMD)) {
959
char *vpath, savec;
960
/*
961
* GCC stores string constants in read-only memory, but
962
* Var_Subst will want to write this thing, so store it
963
* in an array
964
*/
965
static char VPATH[] = "${VPATH}";
966
967
vpath = Var_Subst(NULL, VPATH, VAR_CMD, FALSE);
968
path = vpath;
969
do {
970
/* skip to end of directory */
971
for (cp = path; *cp != ':' && *cp != '\0'; cp++)
972
continue;
973
/* Save terminator character so know when to stop */
974
savec = *cp;
975
*cp = '\0';
976
/* Add directory to search path */
977
(void) Dir_AddDir(dirSearchPath, path);
978
*cp = savec;
979
path = cp + 1;
980
} while (savec == ':');
981
(void)free((Address)vpath);
982
}
983
984
/*
985
* Now that all search paths have been read for suffixes et al, it's
986
* time to add the default search path to their lists...
987
*/
988
Suff_DoPaths();
989
990
/*
991
* Propagate attributes through :: dependency lists.
992
*/
993
Targ_Propagate();
994
995
/* print the initial graph, if the user requested it */
996
if (DEBUG(GRAPH1))
997
Targ_PrintGraph(1);
998
999
/* print the values of any variables requested by the user */
1000
if (printVars) {
1001
LstNode ln;
1002
1003
for (ln = Lst_First(variables); ln != NILLNODE;
1004
ln = Lst_Succ(ln)) {
1005
char *var = (char *)Lst_Datum(ln);
1006
char *value;
1007
1008
if (strchr(var, '$')) {
1009
value = p1 = Var_Subst(NULL, var, VAR_GLOBAL, 0);
1010
} else {
1011
value = Var_Value(var, VAR_GLOBAL, &p1);
1012
}
1013
printf("%s\n", value ? value : "");
1014
if (p1)
1015
free(p1);
1016
}
1017
}
1018
1019
/*
1020
* Have now read the entire graph and need to make a list of targets
1021
* to create. If none was given on the command line, we consult the
1022
* parsing module to find the main target(s) to create.
1023
*/
1024
if (Lst_IsEmpty(create))
1025
targs = Parse_MainName();
1026
else
1027
targs = Targ_FindList(create, TARG_CREATE);
1028
1029
if (!compatMake && !printVars) {
1030
/*
1031
* Initialize job module before traversing the graph, now that
1032
* any .BEGIN and .END targets have been read. This is done
1033
* only if the -q flag wasn't given (to prevent the .BEGIN from
1034
* being executed should it exist).
1035
*/
1036
if (!queryFlag) {
1037
if (maxLocal == -1)
1038
maxLocal = maxJobs;
1039
Job_Init(maxJobs, maxLocal);
1040
jobsRunning = TRUE;
1041
}
1042
1043
/* Traverse the graph, checking on all the targets */
1044
outOfDate = Make_Run(targs);
1045
} else if (!printVars) {
1046
/*
1047
* Compat_Init will take care of creating all the targets as
1048
* well as initializing the module.
1049
*/
1050
Compat_Run(targs);
1051
}
1052
1053
#ifdef CLEANUP
1054
Lst_Destroy(targs, NOFREE);
1055
Lst_Destroy(variables, NOFREE);
1056
Lst_Destroy(makefiles, NOFREE);
1057
Lst_Destroy(create, (void (*)(ClientData))) free;
1058
#endif
1059
1060
/* print the graph now it's been processed if the user requested it */
1061
if (DEBUG(GRAPH2))
1062
Targ_PrintGraph(2);
1063
1064
Trace_Log(MAKEEND, 0);
1065
1066
Suff_End();
1067
Targ_End();
1068
Arch_End();
1069
Var_End();
1070
Parse_End();
1071
Dir_End();
1072
Job_End();
1073
Trace_End();
1074
1075
if (queryFlag && outOfDate)
1076
return(1);
1077
else
1078
return(0);
1079
}
1080
1081
/*-
1082
* ReadMakefile --
1083
* Open and parse the given makefile.
1084
*
1085
* Results:
1086
* TRUE if ok. FALSE if couldn't open file.
1087
*
1088
* Side Effects:
1089
* lots
1090
*/
1091
static Boolean
1092
ReadMakefile(ClientData p, ClientData q __unused)
1093
{
1094
char *fname = p; /* makefile to read */
1095
FILE *stream;
1096
size_t len = MAXPATHLEN;
1097
char *name, *path = emalloc(len);
1098
int setMAKEFILE;
1099
1100
if (!strcmp(fname, "-")) {
1101
Parse_File("(stdin)", stdin);
1102
Var_Set("MAKEFILE", "", VAR_GLOBAL, 0);
1103
} else {
1104
setMAKEFILE = strcmp(fname, ".depend");
1105
1106
/* if we've chdir'd, rebuild the path name */
1107
if (strcmp(curdir, objdir) && *fname != '/') {
1108
size_t plen = strlen(curdir) + strlen(fname) + 2;
1109
if (len < plen)
1110
path = erealloc(path, len = 2 * plen);
1111
1112
(void)snprintf(path, len, "%s/%s", curdir, fname);
1113
if ((stream = fopen(path, "r")) != NULL) {
1114
fname = path;
1115
goto found;
1116
}
1117
1118
/* If curdir failed, try objdir (ala .depend) */
1119
plen = strlen(objdir) + strlen(fname) + 2;
1120
if (len < plen)
1121
path = erealloc(path, len = 2 * plen);
1122
(void)snprintf(path, len, "%s/%s", objdir, fname);
1123
if ((stream = fopen(path, "r")) != NULL) {
1124
fname = path;
1125
goto found;
1126
}
1127
} else if ((stream = fopen(fname, "r")) != NULL)
1128
goto found;
1129
/* look in -I and system include directories. */
1130
name = Dir_FindFile(fname, parseIncPath);
1131
if (!name)
1132
name = Dir_FindFile(fname,
1133
Lst_IsEmpty(sysIncPath) ? defIncPath : sysIncPath);
1134
if (!name || !(stream = fopen(name, "r"))) {
1135
free(path);
1136
return(FALSE);
1137
}
1138
fname = name;
1139
/*
1140
* set the MAKEFILE variable desired by System V fans -- the
1141
* placement of the setting here means it gets set to the last
1142
* makefile specified, as it is set by SysV make.
1143
*/
1144
found:
1145
if (setMAKEFILE)
1146
Var_Set("MAKEFILE", fname, VAR_GLOBAL, 0);
1147
Parse_File(fname, stream);
1148
(void)fclose(stream);
1149
}
1150
free(path);
1151
return(TRUE);
1152
}
1153
1154
1155
/*
1156
* If MAKEOBJDIRPREFIX is in use, make ends up not in .CURDIR
1157
* in situations that would not arrise with ./obj (links or not).
1158
* This tends to break things like:
1159
*
1160
* build:
1161
* ${MAKE} includes
1162
*
1163
* This function spots when ${.MAKE:T} or ${.MAKE} is a command (as
1164
* opposed to an argument) in a command line and if so returns
1165
* ${.CURDIR} so caller can chdir() so that the assumptions made by
1166
* the Makefile hold true.
1167
*
1168
* If ${.MAKE} does not contain any '/', then ${.MAKE:T} is skipped.
1169
*
1170
* The chdir() only happens in the child process, and does nothing if
1171
* MAKEOBJDIRPREFIX and MAKEOBJDIR are not in the environment so it
1172
* should not break anything. Also if NOCHECKMAKECHDIR is set we
1173
* do nothing - to ensure historic semantics can be retained.
1174
*/
1175
static int Check_Cwd_Off = 0;
1176
1177
static char *
1178
Check_Cwd_av(int ac, char **av, int copy)
1179
{
1180
static char *make[4];
1181
static char *cur_dir = NULL;
1182
char **mp;
1183
char *cp;
1184
int is_cmd, next_cmd;
1185
int i;
1186
int n;
1187
1188
if (Check_Cwd_Off)
1189
return NULL;
1190
1191
if (make[0] == NULL) {
1192
if (Var_Exists("NOCHECKMAKECHDIR", VAR_GLOBAL)) {
1193
Check_Cwd_Off = 1;
1194
return NULL;
1195
}
1196
1197
make[1] = Var_Value(".MAKE", VAR_GLOBAL, &cp);
1198
if ((make[0] = strrchr(make[1], '/')) == NULL) {
1199
make[0] = make[1];
1200
make[1] = NULL;
1201
} else
1202
++make[0];
1203
make[2] = NULL;
1204
cur_dir = Var_Value(".CURDIR", VAR_GLOBAL, &cp);
1205
}
1206
if (ac == 0 || av == NULL)
1207
return NULL; /* initialization only */
1208
1209
if (getenv("MAKEOBJDIR") == NULL &&
1210
getenv("MAKEOBJDIRPREFIX") == NULL)
1211
return NULL;
1212
1213
1214
next_cmd = 1;
1215
for (i = 0; i < ac; ++i) {
1216
is_cmd = next_cmd;
1217
1218
n = strlen(av[i]);
1219
cp = &(av[i])[n - 1];
1220
if (strspn(av[i], "|&;") == n) {
1221
next_cmd = 1;
1222
continue;
1223
} else if (*cp == ';' || *cp == '&' || *cp == '|' || *cp == ')') {
1224
next_cmd = 1;
1225
if (copy) {
1226
do {
1227
*cp-- = '\0';
1228
} while (*cp == ';' || *cp == '&' || *cp == '|' ||
1229
*cp == ')' || *cp == '}') ;
1230
} else {
1231
/*
1232
* XXX this should not happen.
1233
*/
1234
fprintf(stderr, "WARNING: raw arg ends in shell meta '%s'\n",
1235
av[i]);
1236
}
1237
} else
1238
next_cmd = 0;
1239
1240
cp = av[i];
1241
if (*cp == ';' || *cp == '&' || *cp == '|')
1242
is_cmd = 1;
1243
1244
#ifdef check_cwd_debug
1245
fprintf(stderr, "av[%d] == %s '%s'",
1246
i, (is_cmd) ? "cmd" : "arg", av[i]);
1247
#endif
1248
if (is_cmd != 0) {
1249
if (*cp == '(' || *cp == '{' ||
1250
*cp == ';' || *cp == '&' || *cp == '|') {
1251
do {
1252
++cp;
1253
} while (*cp == '(' || *cp == '{' ||
1254
*cp == ';' || *cp == '&' || *cp == '|');
1255
if (*cp == '\0') {
1256
next_cmd = 1;
1257
continue;
1258
}
1259
}
1260
if (strcmp(cp, "cd") == 0 || strcmp(cp, "chdir") == 0) {
1261
#ifdef check_cwd_debug
1262
fprintf(stderr, " == cd, done.\n");
1263
#endif
1264
return NULL;
1265
}
1266
for (mp = make; *mp != NULL; ++mp) {
1267
n = strlen(*mp);
1268
if (strcmp(cp, *mp) == 0) {
1269
#ifdef check_cwd_debug
1270
fprintf(stderr, " %s == '%s', chdir(%s)\n",
1271
cp, *mp, cur_dir);
1272
#endif
1273
return cur_dir;
1274
}
1275
}
1276
}
1277
#ifdef check_cwd_debug
1278
fprintf(stderr, "\n");
1279
#endif
1280
}
1281
return NULL;
1282
}
1283
1284
char *
1285
Check_Cwd_Cmd(const char *cmd)
1286
{
1287
char *cp, *bp;
1288
char **av;
1289
int ac;
1290
1291
if (Check_Cwd_Off)
1292
return NULL;
1293
1294
if (cmd) {
1295
av = brk_string(cmd, &ac, TRUE, &bp);
1296
#ifdef check_cwd_debug
1297
fprintf(stderr, "splitting: '%s' -> %d words\n",
1298
cmd, ac);
1299
#endif
1300
} else {
1301
ac = 0;
1302
av = NULL;
1303
bp = NULL;
1304
}
1305
cp = Check_Cwd_av(ac, av, 1);
1306
if (bp) {
1307
free(av);
1308
free(bp);
1309
}
1310
return cp;
1311
}
1312
1313
void
1314
Check_Cwd(const char **argv)
1315
{
1316
char *cp;
1317
int ac;
1318
1319
if (Check_Cwd_Off)
1320
return;
1321
1322
for (ac = 0; argv[ac] != NULL; ++ac)
1323
/* NOTHING */;
1324
if (ac == 3 && *argv[1] == '-') {
1325
cp = Check_Cwd_Cmd(argv[2]);
1326
} else {
1327
cp = Check_Cwd_av(ac, UNCONST(argv), 0);
1328
}
1329
if (cp) {
1330
chdir(cp);
1331
}
1332
}
1333
1334
/*-
1335
* Cmd_Exec --
1336
* Execute the command in cmd, and return the output of that command
1337
* in a string.
1338
*
1339
* Results:
1340
* A string containing the output of the command, or the empty string
1341
* If err is not NULL, it contains the reason for the command failure
1342
*
1343
* Side Effects:
1344
* The string must be freed by the caller.
1345
*/
1346
char *
1347
Cmd_Exec(const char *cmd, const char **err)
1348
{
1349
const char *args[4]; /* Args for invoking the shell */
1350
int fds[2]; /* Pipe streams */
1351
int cpid; /* Child PID */
1352
int pid; /* PID from wait() */
1353
char *res; /* result */
1354
int status; /* command exit status */
1355
Buffer buf; /* buffer to store the result */
1356
char *cp;
1357
int cc;
1358
1359
1360
*err = NULL;
1361
1362
if (!shellName)
1363
Shell_Init();
1364
/*
1365
* Set up arguments for shell
1366
*/
1367
args[0] = shellName;
1368
args[1] = "-c";
1369
args[2] = cmd;
1370
args[3] = NULL;
1371
1372
/*
1373
* Open a pipe for fetching its output
1374
*/
1375
if (pipe(fds) == -1) {
1376
*err = "Couldn't create pipe for \"%s\"";
1377
goto bad;
1378
}
1379
1380
/*
1381
* Fork
1382
*/
1383
switch (cpid = vfork()) {
1384
case 0:
1385
/*
1386
* Close input side of pipe
1387
*/
1388
(void) close(fds[0]);
1389
1390
/*
1391
* Duplicate the output stream to the shell's output, then
1392
* shut the extra thing down. Note we don't fetch the error
1393
* stream...why not? Why?
1394
*/
1395
(void) dup2(fds[1], 1);
1396
(void) close(fds[1]);
1397
1398
(void) execv(shellPath, UNCONST(args));
1399
_exit(1);
1400
/*NOTREACHED*/
1401
1402
case -1:
1403
*err = "Couldn't exec \"%s\"";
1404
goto bad;
1405
1406
default:
1407
/*
1408
* No need for the writing half
1409
*/
1410
(void) close(fds[1]);
1411
1412
buf = Buf_Init(MAKE_BSIZE);
1413
1414
do {
1415
char result[BUFSIZ];
1416
cc = read(fds[0], result, sizeof(result));
1417
if (cc > 0)
1418
Buf_AddBytes(buf, cc, (Byte *) result);
1419
}
1420
while (cc > 0 || (cc == -1 && errno == EINTR));
1421
1422
/*
1423
* Close the input side of the pipe.
1424
*/
1425
(void) close(fds[0]);
1426
1427
/*
1428
* Wait for the process to exit.
1429
*/
1430
while(((pid = wait(&status)) != cpid) && (pid >= 0))
1431
continue;
1432
1433
res = (char *)Buf_GetAll (buf, &cc);
1434
Buf_Destroy(buf, FALSE);
1435
1436
if (cc == 0)
1437
*err = "Couldn't read shell's output for \"%s\"";
1438
1439
if (status)
1440
*err = "\"%s\" returned non-zero status";
1441
1442
/*
1443
* Null-terminate the result, convert newlines to spaces and
1444
* install it in the variable.
1445
*/
1446
res[cc] = '\0';
1447
cp = &res[cc];
1448
1449
if (cc > 0 && *--cp == '\n') {
1450
/*
1451
* A final newline is just stripped
1452
*/
1453
*cp-- = '\0';
1454
}
1455
while (cp >= res) {
1456
if (*cp == '\n') {
1457
*cp = ' ';
1458
}
1459
cp--;
1460
}
1461
break;
1462
}
1463
return res;
1464
bad:
1465
res = emalloc(1);
1466
*res = '\0';
1467
return res;
1468
}
1469
1470
/*-
1471
* Error --
1472
* Print an error message given its format.
1473
*
1474
* Results:
1475
* None.
1476
*
1477
* Side Effects:
1478
* The message is printed.
1479
*/
1480
/* VARARGS */
1481
void
1482
Error(const char *fmt, ...)
1483
{
1484
va_list ap;
1485
1486
va_start(ap, fmt);
1487
fprintf(stderr, "%s: ", progname);
1488
(void)vfprintf(stderr, fmt, ap);
1489
va_end(ap);
1490
(void)fprintf(stderr, "\n");
1491
(void)fflush(stderr);
1492
}
1493
1494
/*-
1495
* Fatal --
1496
* Produce a Fatal error message. If jobs are running, waits for them
1497
* to finish.
1498
*
1499
* Results:
1500
* None
1501
*
1502
* Side Effects:
1503
* The program exits
1504
*/
1505
/* VARARGS */
1506
void
1507
Fatal(const char *fmt, ...)
1508
{
1509
va_list ap;
1510
1511
va_start(ap, fmt);
1512
if (jobsRunning)
1513
Job_Wait();
1514
Job_TokenFlush();
1515
1516
(void)vfprintf(stderr, fmt, ap);
1517
va_end(ap);
1518
(void)fprintf(stderr, "\n");
1519
(void)fflush(stderr);
1520
1521
PrintOnError(NULL);
1522
1523
if (DEBUG(GRAPH2) || DEBUG(GRAPH3))
1524
Targ_PrintGraph(2);
1525
Trace_Log(MAKEERROR, 0);
1526
exit(2); /* Not 1 so -q can distinguish error */
1527
}
1528
1529
/*
1530
* Punt --
1531
* Major exception once jobs are being created. Kills all jobs, prints
1532
* a message and exits.
1533
*
1534
* Results:
1535
* None
1536
*
1537
* Side Effects:
1538
* All children are killed indiscriminately and the program Lib_Exits
1539
*/
1540
/* VARARGS */
1541
void
1542
Punt(const char *fmt, ...)
1543
{
1544
va_list ap;
1545
1546
va_start(ap, fmt);
1547
(void)fprintf(stderr, "%s: ", progname);
1548
(void)vfprintf(stderr, fmt, ap);
1549
va_end(ap);
1550
(void)fprintf(stderr, "\n");
1551
(void)fflush(stderr);
1552
1553
PrintOnError(NULL);
1554
1555
DieHorribly();
1556
}
1557
1558
/*-
1559
* DieHorribly --
1560
* Exit without giving a message.
1561
*
1562
* Results:
1563
* None
1564
*
1565
* Side Effects:
1566
* A big one...
1567
*/
1568
void
1569
DieHorribly(void)
1570
{
1571
if (jobsRunning)
1572
Job_AbortAll();
1573
if (DEBUG(GRAPH2))
1574
Targ_PrintGraph(2);
1575
Trace_Log(MAKEERROR, 0);
1576
exit(2); /* Not 1, so -q can distinguish error */
1577
}
1578
1579
/*
1580
* Finish --
1581
* Called when aborting due to errors in child shell to signal
1582
* abnormal exit.
1583
*
1584
* Results:
1585
* None
1586
*
1587
* Side Effects:
1588
* The program exits
1589
*/
1590
void
1591
Finish(int errors)
1592
/* number of errors encountered in Make_Make */
1593
{
1594
Fatal("%d error%s", errors, errors == 1 ? "" : "s");
1595
}
1596
1597
/*
1598
* emalloc --
1599
* malloc, but die on error.
1600
*/
1601
void *
1602
emalloc(size_t len)
1603
{
1604
void *p;
1605
1606
if ((p = malloc(len)) == NULL)
1607
enomem();
1608
return(p);
1609
}
1610
1611
/*
1612
* estrdup --
1613
* strdup, but die on error.
1614
*/
1615
char *
1616
estrdup(const char *str)
1617
{
1618
char *p;
1619
1620
if ((p = strdup(str)) == NULL)
1621
enomem();
1622
return(p);
1623
}
1624
1625
/*
1626
* erealloc --
1627
* realloc, but die on error.
1628
*/
1629
void *
1630
erealloc(void *ptr, size_t size)
1631
{
1632
if ((ptr = realloc(ptr, size)) == NULL)
1633
enomem();
1634
return(ptr);
1635
}
1636
1637
/*
1638
* enomem --
1639
* die when out of memory.
1640
*/
1641
void
1642
enomem(void)
1643
{
1644
(void)fprintf(stderr, "%s: %s.\n", progname, strerror(errno));
1645
exit(2);
1646
}
1647
1648
/*
1649
* enunlink --
1650
* Remove a file carefully, avoiding directories.
1651
*/
1652
int
1653
eunlink(const char *file)
1654
{
1655
struct stat st;
1656
1657
if (lstat(file, &st) == -1)
1658
return -1;
1659
1660
if (S_ISDIR(st.st_mode)) {
1661
errno = EISDIR;
1662
return -1;
1663
}
1664
return unlink(file);
1665
}
1666
1667
/*
1668
* execError --
1669
* Print why exec failed, avoiding stdio.
1670
*/
1671
void
1672
execError(const char *af, const char *av)
1673
{
1674
#ifdef USE_IOVEC
1675
int i = 0;
1676
struct iovec iov[8];
1677
#define IOADD(s) \
1678
(void)(iov[i].iov_base = UNCONST(s), \
1679
iov[i].iov_len = strlen(iov[i].iov_base), \
1680
i++)
1681
#else
1682
#define IOADD (void)write(2, s, strlen(s))
1683
#endif
1684
1685
IOADD(progname);
1686
IOADD(": ");
1687
IOADD(af);
1688
IOADD("(");
1689
IOADD(av);
1690
IOADD(") failed (");
1691
IOADD(strerror(errno));
1692
IOADD(")\n");
1693
1694
#ifdef USE_IOVEC
1695
(void)writev(2, iov, 8);
1696
#endif
1697
}
1698
1699
/*
1700
* usage --
1701
* exit with usage message
1702
*/
1703
static void
1704
usage(void)
1705
{
1706
(void)fprintf(stderr,
1707
"usage: %s [-BeikNnqrstWX] [-D variable] [-d flags] [-f makefile]\n\
1708
[-I directory] [-J private] [-j max_jobs] [-m directory] [-T file]\n\
1709
[-V variable] [variable=value] [target ...]\n", progname);
1710
exit(2);
1711
}
1712
1713
1714
int
1715
PrintAddr(ClientData a, ClientData b)
1716
{
1717
printf("%lx ", (unsigned long) a);
1718
return b ? 0 : 0;
1719
}
1720
1721
1722
1723
void
1724
PrintOnError(const char *s)
1725
{
1726
char tmp[64];
1727
1728
if (s)
1729
printf("%s", s);
1730
1731
printf("\n%s: stopped in %s\n", progname, curdir);
1732
strncpy(tmp, "${MAKE_PRINT_VAR_ON_ERROR:@v@$v='${$v}'\n@}",
1733
sizeof(tmp) - 1);
1734
s = Var_Subst(NULL, tmp, VAR_GLOBAL, 0);
1735
if (s && *s)
1736
printf("%s", s);
1737
}
1738
1739
void
1740
Main_ExportMAKEFLAGS(Boolean first)
1741
{
1742
static int once = 1;
1743
char tmp[64];
1744
char *s;
1745
1746
if (once != first)
1747
return;
1748
once = 0;
1749
1750
strncpy(tmp, "${.MAKEFLAGS} ${.MAKEOVERRIDES:O:u:@v@$v=${$v:Q}@}",
1751
sizeof(tmp));
1752
s = Var_Subst(NULL, tmp, VAR_CMD, 0);
1753
if (s && *s) {
1754
#ifdef POSIX
1755
setenv("MAKEFLAGS", s, 1);
1756
#else
1757
setenv("MAKE", s, 1);
1758
#endif
1759
}
1760
}
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Version: 2.0.1