1/*
2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef lint
31static const char copyright[] =
32"@(#) Copyright (c) 1980, 1993\n\
33 The Regents of the University of California. All rights reserved.\n";
34#endif /* not lint */
35
36#ifndef lint
37#if 0
38static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 6/6/93";
39#endif
40static const char rcsid[] =
| 1/*
2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef lint
31static const char copyright[] =
32"@(#) Copyright (c) 1980, 1993\n\
33 The Regents of the University of California. All rights reserved.\n";
34#endif /* not lint */
35
36#ifndef lint
37#if 0
38static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 6/6/93";
39#endif
40static const char rcsid[] =
|
41 "$FreeBSD: head/usr.sbin/config/main.c 169507 2007-05-12 19:38:18Z wkoszek $";
| 41 "$FreeBSD: head/usr.sbin/config/main.c 169512 2007-05-12 22:37:52Z wkoszek $";
|
42#endif /* not lint */
43
44#include <sys/types.h>
45#include <sys/stat.h>
46#include <sys/sbuf.h>
47#include <sys/file.h>
48#include <sys/mman.h>
49#include <sys/param.h>
50
51#include <assert.h>
52#include <ctype.h>
53#include <err.h>
54#include <stdio.h>
| 42#endif /* not lint */
43
44#include <sys/types.h>
45#include <sys/stat.h>
46#include <sys/sbuf.h>
47#include <sys/file.h>
48#include <sys/mman.h>
49#include <sys/param.h>
50
51#include <assert.h>
52#include <ctype.h>
53#include <err.h>
54#include <stdio.h>
|
| 55#include <string.h>
|
55#include <sysexits.h>
56#include <unistd.h>
57#include <dirent.h>
58#include "y.tab.h"
59#include "config.h"
60#include "configvers.h"
61
62#ifndef TRUE
63#define TRUE (1)
64#endif
65
66#ifndef FALSE
67#define FALSE (0)
68#endif
69
70#define CDIR "../compile/"
71
72char * PREFIX;
73char destdir[MAXPATHLEN];
74char srcdir[MAXPATHLEN];
75
76int debugging;
77int profiling;
78int found_defaults;
79int incignore;
80
81/*
82 * Preserve old behaviour in INCLUDE_CONFIG_FILE handling (files are included
83 * literally).
84 */
85int filebased = 0;
86
87static void configfile(void);
88static void get_srcdir(void);
89static void usage(void);
90static void cleanheaders(char *);
91static void kernconfdump(const char *);
92
93struct hdr_list {
94 char *h_name;
95 struct hdr_list *h_next;
96} *htab;
97
98/*
99 * Config builds a set of files for building a UNIX
100 * system given a description of the desired system.
101 */
102int
103main(int argc, char **argv)
104{
105
106 struct stat buf;
107 int ch, len;
108 char *p;
109 char xxx[MAXPATHLEN];
110 char *kernfile;
111
112 kernfile = NULL;
113 while ((ch = getopt(argc, argv, "Cd:gpVx:")) != -1)
114 switch (ch) {
115 case 'C':
116 filebased = 1;
117 break;
118 case 'd':
119 if (*destdir == '\0')
120 strlcpy(destdir, optarg, sizeof(destdir));
121 else
122 errx(2, "directory already set");
123 break;
124 case 'g':
125 debugging++;
126 break;
127 case 'p':
128 profiling++;
129 break;
130 case 'V':
131 printf("%d\n", CONFIGVERS);
132 exit(0);
133 case 'x':
134 kernfile = optarg;
135 break;
136 case '?':
137 default:
138 usage();
139 }
140 argc -= optind;
141 argv += optind;
142
143 if (kernfile != NULL) {
144 kernconfdump(kernfile);
145 exit(EXIT_SUCCESS);
146 }
147
148 if (argc != 1)
149 usage();
150
151 PREFIX = *argv;
152 /*
153 * We mark lack of DEFAULTS here. Once we hit EOF in PREFIX, yywrap()
154 * will try to bring DEFAULTS to the playground, if this exists.
155 */
156 found_defaults = 0;
157 if (freopen(PREFIX, "r", stdin) == NULL)
158 err(2, "%s", PREFIX);
159 yyfile = PREFIX;
160 if (*destdir != '\0') {
161 len = strlen(destdir);
162 while (len > 1 && destdir[len - 1] == '/')
163 destdir[--len] = '\0';
164 get_srcdir();
165 } else {
166 strlcpy(destdir, CDIR, sizeof(destdir));
167 strlcat(destdir, PREFIX, sizeof(destdir));
168 }
169
170 p = path((char *)NULL);
171 if (stat(p, &buf)) {
172 if (mkdir(p, 0777))
173 err(2, "%s", p);
174 } else if (!S_ISDIR(buf.st_mode))
175 errx(2, "%s isn't a directory", p);
176
177 SLIST_INIT(&cputype);
178 SLIST_INIT(&mkopt);
179 SLIST_INIT(&opt);
180 SLIST_INIT(&rmopts);
181 STAILQ_INIT(&cfgfiles);
182 STAILQ_INIT(&dtab);
183 STAILQ_INIT(&fntab);
184 STAILQ_INIT(&ftab);
185 STAILQ_INIT(&hints);
186 STAILQ_INIT(&rmdtab);
187 if (yyparse())
188 exit(3);
189
190 /*
191 * Ensure that required elements (machine, cpu, ident) are present.
192 */
193 if (machinename == NULL) {
194 printf("Specify machine type, e.g. ``machine i386''\n");
195 exit(1);
196 }
197 if (ident == NULL) {
198 printf("no ident line specified\n");
199 exit(1);
200 }
201 if (SLIST_EMPTY(&cputype)) {
202 printf("cpu type must be specified\n");
203 exit(1);
204 }
205
206 /*
207 * make symbolic links in compilation directory
208 * for "sys" (to make genassym.c work along with #include <sys/xxx>)
209 * and similarly for "machine".
210 */
211 if (*srcdir == '\0')
212 (void)snprintf(xxx, sizeof(xxx), "../../include");
213 else
214 (void)snprintf(xxx, sizeof(xxx), "%s/%s/include",
215 srcdir, machinename);
216 (void) unlink(path("machine"));
217 (void) symlink(xxx, path("machine"));
218 if (strcmp(machinename, machinearch) != 0) {
219 /*
220 * make symbolic links in compilation directory for
221 * machinearch, if it is different than machinename.
222 */
223 if (*srcdir == '\0')
224 (void)snprintf(xxx, sizeof(xxx), "../../../%s/include",
225 machinearch);
226 else
227 (void)snprintf(xxx, sizeof(xxx), "%s/%s/include",
228 srcdir, machinearch);
229 (void) unlink(path(machinearch));
230 (void) symlink(xxx, path(machinearch));
231 }
232 configfile(); /* put config file into kernel*/
233 options(); /* make options .h files */
234 makefile(); /* build Makefile */
235 makeenv(); /* build env.c */
236 makehints(); /* build hints.c */
237 headers(); /* make a lot of .h files */
238 cleanheaders(p);
239 printf("Kernel build directory is %s\n", p);
240 printf("Don't forget to do ``make cleandepend && make depend''\n");
241 exit(0);
242}
243
244/*
245 * get_srcdir
246 * determine the root of the kernel source tree
247 * and save that in srcdir.
248 */
249static void
250get_srcdir(void)
251{
252
253 if (realpath("../..", srcdir) == NULL)
254 errx(2, "Unable to find root of source tree");
255}
256
257static void
258usage(void)
259{
260
261 fprintf(stderr, "usage: config [-CgpV] [-d destdir] sysname\n");
262 fprintf(stderr, " config -x kernel\n");
263 exit(EX_USAGE);
264}
265
266/*
267 * get_word
268 * returns EOF on end of file
269 * NULL on end of line
270 * pointer to the word otherwise
271 */
272char *
273get_word(FILE *fp)
274{
275 static char line[80];
276 int ch;
277 char *cp;
278 int escaped_nl = 0;
279
280begin:
281 while ((ch = getc(fp)) != EOF)
282 if (ch != ' ' && ch != '\t')
283 break;
284 if (ch == EOF)
285 return ((char *)EOF);
286 if (ch == '\\'){
287 escaped_nl = 1;
288 goto begin;
289 }
290 if (ch == '\n') {
291 if (escaped_nl){
292 escaped_nl = 0;
293 goto begin;
294 }
295 else
296 return (NULL);
297 }
298 cp = line;
299 *cp++ = ch;
300 while ((ch = getc(fp)) != EOF) {
301 if (isspace(ch))
302 break;
303 *cp++ = ch;
304 }
305 *cp = 0;
306 if (ch == EOF)
307 return ((char *)EOF);
308 (void) ungetc(ch, fp);
309 return (line);
310}
311
312/*
313 * get_quoted_word
314 * like get_word but will accept something in double or single quotes
315 * (to allow embedded spaces).
316 */
317char *
318get_quoted_word(FILE *fp)
319{
320 static char line[256];
321 int ch;
322 char *cp;
323 int escaped_nl = 0;
324
325begin:
326 while ((ch = getc(fp)) != EOF)
327 if (ch != ' ' && ch != '\t')
328 break;
329 if (ch == EOF)
330 return ((char *)EOF);
331 if (ch == '\\'){
332 escaped_nl = 1;
333 goto begin;
334 }
335 if (ch == '\n') {
336 if (escaped_nl){
337 escaped_nl = 0;
338 goto begin;
339 }
340 else
341 return (NULL);
342 }
343 cp = line;
344 if (ch == '"' || ch == '\'') {
345 int quote = ch;
346
347 while ((ch = getc(fp)) != EOF) {
348 if (ch == quote)
349 break;
350 if (ch == '\n') {
351 *cp = 0;
352 printf("config: missing quote reading `%s'\n",
353 line);
354 exit(2);
355 }
356 *cp++ = ch;
357 }
358 } else {
359 *cp++ = ch;
360 while ((ch = getc(fp)) != EOF) {
361 if (isspace(ch))
362 break;
363 *cp++ = ch;
364 }
365 if (ch != EOF)
366 (void) ungetc(ch, fp);
367 }
368 *cp = 0;
369 if (ch == EOF)
370 return ((char *)EOF);
371 return (line);
372}
373
374/*
375 * prepend the path to a filename
376 */
377char *
378path(const char *file)
379{
380 char *cp = NULL;
381
382 if (file)
383 asprintf(&cp, "%s/%s", destdir, file);
384 else
385 cp = strdup(destdir);
386 return (cp);
387}
388
389/*
390 * Generate configuration file based on actual settings. With this mode, user
391 * will be able to obtain and build conifguration file with one command.
392 */
393static void
394configfile_dynamic(struct sbuf *sb)
395{
396 struct cputype *cput;
397 struct device *d;
398 struct opt *ol;
399 char *lend;
| 56#include <sysexits.h>
57#include <unistd.h>
58#include <dirent.h>
59#include "y.tab.h"
60#include "config.h"
61#include "configvers.h"
62
63#ifndef TRUE
64#define TRUE (1)
65#endif
66
67#ifndef FALSE
68#define FALSE (0)
69#endif
70
71#define CDIR "../compile/"
72
73char * PREFIX;
74char destdir[MAXPATHLEN];
75char srcdir[MAXPATHLEN];
76
77int debugging;
78int profiling;
79int found_defaults;
80int incignore;
81
82/*
83 * Preserve old behaviour in INCLUDE_CONFIG_FILE handling (files are included
84 * literally).
85 */
86int filebased = 0;
87
88static void configfile(void);
89static void get_srcdir(void);
90static void usage(void);
91static void cleanheaders(char *);
92static void kernconfdump(const char *);
93
94struct hdr_list {
95 char *h_name;
96 struct hdr_list *h_next;
97} *htab;
98
99/*
100 * Config builds a set of files for building a UNIX
101 * system given a description of the desired system.
102 */
103int
104main(int argc, char **argv)
105{
106
107 struct stat buf;
108 int ch, len;
109 char *p;
110 char xxx[MAXPATHLEN];
111 char *kernfile;
112
113 kernfile = NULL;
114 while ((ch = getopt(argc, argv, "Cd:gpVx:")) != -1)
115 switch (ch) {
116 case 'C':
117 filebased = 1;
118 break;
119 case 'd':
120 if (*destdir == '\0')
121 strlcpy(destdir, optarg, sizeof(destdir));
122 else
123 errx(2, "directory already set");
124 break;
125 case 'g':
126 debugging++;
127 break;
128 case 'p':
129 profiling++;
130 break;
131 case 'V':
132 printf("%d\n", CONFIGVERS);
133 exit(0);
134 case 'x':
135 kernfile = optarg;
136 break;
137 case '?':
138 default:
139 usage();
140 }
141 argc -= optind;
142 argv += optind;
143
144 if (kernfile != NULL) {
145 kernconfdump(kernfile);
146 exit(EXIT_SUCCESS);
147 }
148
149 if (argc != 1)
150 usage();
151
152 PREFIX = *argv;
153 /*
154 * We mark lack of DEFAULTS here. Once we hit EOF in PREFIX, yywrap()
155 * will try to bring DEFAULTS to the playground, if this exists.
156 */
157 found_defaults = 0;
158 if (freopen(PREFIX, "r", stdin) == NULL)
159 err(2, "%s", PREFIX);
160 yyfile = PREFIX;
161 if (*destdir != '\0') {
162 len = strlen(destdir);
163 while (len > 1 && destdir[len - 1] == '/')
164 destdir[--len] = '\0';
165 get_srcdir();
166 } else {
167 strlcpy(destdir, CDIR, sizeof(destdir));
168 strlcat(destdir, PREFIX, sizeof(destdir));
169 }
170
171 p = path((char *)NULL);
172 if (stat(p, &buf)) {
173 if (mkdir(p, 0777))
174 err(2, "%s", p);
175 } else if (!S_ISDIR(buf.st_mode))
176 errx(2, "%s isn't a directory", p);
177
178 SLIST_INIT(&cputype);
179 SLIST_INIT(&mkopt);
180 SLIST_INIT(&opt);
181 SLIST_INIT(&rmopts);
182 STAILQ_INIT(&cfgfiles);
183 STAILQ_INIT(&dtab);
184 STAILQ_INIT(&fntab);
185 STAILQ_INIT(&ftab);
186 STAILQ_INIT(&hints);
187 STAILQ_INIT(&rmdtab);
188 if (yyparse())
189 exit(3);
190
191 /*
192 * Ensure that required elements (machine, cpu, ident) are present.
193 */
194 if (machinename == NULL) {
195 printf("Specify machine type, e.g. ``machine i386''\n");
196 exit(1);
197 }
198 if (ident == NULL) {
199 printf("no ident line specified\n");
200 exit(1);
201 }
202 if (SLIST_EMPTY(&cputype)) {
203 printf("cpu type must be specified\n");
204 exit(1);
205 }
206
207 /*
208 * make symbolic links in compilation directory
209 * for "sys" (to make genassym.c work along with #include <sys/xxx>)
210 * and similarly for "machine".
211 */
212 if (*srcdir == '\0')
213 (void)snprintf(xxx, sizeof(xxx), "../../include");
214 else
215 (void)snprintf(xxx, sizeof(xxx), "%s/%s/include",
216 srcdir, machinename);
217 (void) unlink(path("machine"));
218 (void) symlink(xxx, path("machine"));
219 if (strcmp(machinename, machinearch) != 0) {
220 /*
221 * make symbolic links in compilation directory for
222 * machinearch, if it is different than machinename.
223 */
224 if (*srcdir == '\0')
225 (void)snprintf(xxx, sizeof(xxx), "../../../%s/include",
226 machinearch);
227 else
228 (void)snprintf(xxx, sizeof(xxx), "%s/%s/include",
229 srcdir, machinearch);
230 (void) unlink(path(machinearch));
231 (void) symlink(xxx, path(machinearch));
232 }
233 configfile(); /* put config file into kernel*/
234 options(); /* make options .h files */
235 makefile(); /* build Makefile */
236 makeenv(); /* build env.c */
237 makehints(); /* build hints.c */
238 headers(); /* make a lot of .h files */
239 cleanheaders(p);
240 printf("Kernel build directory is %s\n", p);
241 printf("Don't forget to do ``make cleandepend && make depend''\n");
242 exit(0);
243}
244
245/*
246 * get_srcdir
247 * determine the root of the kernel source tree
248 * and save that in srcdir.
249 */
250static void
251get_srcdir(void)
252{
253
254 if (realpath("../..", srcdir) == NULL)
255 errx(2, "Unable to find root of source tree");
256}
257
258static void
259usage(void)
260{
261
262 fprintf(stderr, "usage: config [-CgpV] [-d destdir] sysname\n");
263 fprintf(stderr, " config -x kernel\n");
264 exit(EX_USAGE);
265}
266
267/*
268 * get_word
269 * returns EOF on end of file
270 * NULL on end of line
271 * pointer to the word otherwise
272 */
273char *
274get_word(FILE *fp)
275{
276 static char line[80];
277 int ch;
278 char *cp;
279 int escaped_nl = 0;
280
281begin:
282 while ((ch = getc(fp)) != EOF)
283 if (ch != ' ' && ch != '\t')
284 break;
285 if (ch == EOF)
286 return ((char *)EOF);
287 if (ch == '\\'){
288 escaped_nl = 1;
289 goto begin;
290 }
291 if (ch == '\n') {
292 if (escaped_nl){
293 escaped_nl = 0;
294 goto begin;
295 }
296 else
297 return (NULL);
298 }
299 cp = line;
300 *cp++ = ch;
301 while ((ch = getc(fp)) != EOF) {
302 if (isspace(ch))
303 break;
304 *cp++ = ch;
305 }
306 *cp = 0;
307 if (ch == EOF)
308 return ((char *)EOF);
309 (void) ungetc(ch, fp);
310 return (line);
311}
312
313/*
314 * get_quoted_word
315 * like get_word but will accept something in double or single quotes
316 * (to allow embedded spaces).
317 */
318char *
319get_quoted_word(FILE *fp)
320{
321 static char line[256];
322 int ch;
323 char *cp;
324 int escaped_nl = 0;
325
326begin:
327 while ((ch = getc(fp)) != EOF)
328 if (ch != ' ' && ch != '\t')
329 break;
330 if (ch == EOF)
331 return ((char *)EOF);
332 if (ch == '\\'){
333 escaped_nl = 1;
334 goto begin;
335 }
336 if (ch == '\n') {
337 if (escaped_nl){
338 escaped_nl = 0;
339 goto begin;
340 }
341 else
342 return (NULL);
343 }
344 cp = line;
345 if (ch == '"' || ch == '\'') {
346 int quote = ch;
347
348 while ((ch = getc(fp)) != EOF) {
349 if (ch == quote)
350 break;
351 if (ch == '\n') {
352 *cp = 0;
353 printf("config: missing quote reading `%s'\n",
354 line);
355 exit(2);
356 }
357 *cp++ = ch;
358 }
359 } else {
360 *cp++ = ch;
361 while ((ch = getc(fp)) != EOF) {
362 if (isspace(ch))
363 break;
364 *cp++ = ch;
365 }
366 if (ch != EOF)
367 (void) ungetc(ch, fp);
368 }
369 *cp = 0;
370 if (ch == EOF)
371 return ((char *)EOF);
372 return (line);
373}
374
375/*
376 * prepend the path to a filename
377 */
378char *
379path(const char *file)
380{
381 char *cp = NULL;
382
383 if (file)
384 asprintf(&cp, "%s/%s", destdir, file);
385 else
386 cp = strdup(destdir);
387 return (cp);
388}
389
390/*
391 * Generate configuration file based on actual settings. With this mode, user
392 * will be able to obtain and build conifguration file with one command.
393 */
394static void
395configfile_dynamic(struct sbuf *sb)
396{
397 struct cputype *cput;
398 struct device *d;
399 struct opt *ol;
400 char *lend;
|
| 401 unsigned int i;
|
400
401 asprintf(&lend, "\\n\\\n");
402 assert(lend != NULL);
403 sbuf_printf(sb, "options\t%s%s", OPT_AUTOGEN, lend);
404 sbuf_printf(sb, "ident\t%s%s", ident, lend);
405 sbuf_printf(sb, "machine\t%s%s", machinename, lend);
406 SLIST_FOREACH(cput, &cputype, cpu_next)
407 sbuf_printf(sb, "cpu\t%s%s", cput->cpu_name, lend);
408 SLIST_FOREACH(ol, &mkopt, op_next)
409 sbuf_printf(sb, "makeoptions\t%s=%s%s", ol->op_name,
410 ol->op_value, lend);
411 SLIST_FOREACH(ol, &opt, op_next) {
412 if (strncmp(ol->op_name, "DEV_", 4) == 0)
413 continue;
414 sbuf_printf(sb, "options\t%s", ol->op_name);
415 if (ol->op_value != NULL) {
| 402
403 asprintf(&lend, "\\n\\\n");
404 assert(lend != NULL);
405 sbuf_printf(sb, "options\t%s%s", OPT_AUTOGEN, lend);
406 sbuf_printf(sb, "ident\t%s%s", ident, lend);
407 sbuf_printf(sb, "machine\t%s%s", machinename, lend);
408 SLIST_FOREACH(cput, &cputype, cpu_next)
409 sbuf_printf(sb, "cpu\t%s%s", cput->cpu_name, lend);
410 SLIST_FOREACH(ol, &mkopt, op_next)
411 sbuf_printf(sb, "makeoptions\t%s=%s%s", ol->op_name,
412 ol->op_value, lend);
413 SLIST_FOREACH(ol, &opt, op_next) {
414 if (strncmp(ol->op_name, "DEV_", 4) == 0)
415 continue;
416 sbuf_printf(sb, "options\t%s", ol->op_name);
417 if (ol->op_value != NULL) {
|
416 sbuf_printf(sb, "=%s%s", ol->op_value, lend);
| 418 sbuf_putc(sb, '=');
419 for (i = 0; i < strlen(ol->op_value); i++) {
420 if (ol->op_value[i] == '"')
421 sbuf_printf(sb, "\\%c",
422 ol->op_value[i]);
423 else
424 sbuf_printf(sb, "%c",
425 ol->op_value[i]);
426 }
427 sbuf_printf(sb, "%s", lend);
|
417 } else {
418 sbuf_printf(sb, "%s", lend);
419 }
420 }
421 /*
422 * Mark this file as containing everything we need.
423 */
424 STAILQ_FOREACH(d, &dtab, d_next)
425 sbuf_printf(sb, "device\t%s%s", d->d_name, lend);
426 free(lend);
427}
428
429/*
430 * Generate file from the configuration files.
431 */
432static void
433configfile_filebased(struct sbuf *sb)
434{
435 FILE *cff;
436 struct cfgfile *cf;
437 int i;
438
439 STAILQ_FOREACH(cf, &cfgfiles, cfg_next) {
440 cff = fopen(cf->cfg_path, "r");
441 if (cff == NULL) {
442 warn("Couldn't open file %s", cf->cfg_path);
443 continue;
444 }
445 while ((i = getc(cff)) != EOF) {
446 if (i == '\n')
447 sbuf_printf(sb, "\\n\\\n");
448 else if (i == '"' || i == '\'')
449 sbuf_printf(sb, "\\%c", i);
450 else
451 sbuf_putc(sb, i);
452 }
453 fclose(cff);
454 }
455}
456
457static void
458configfile(void)
459{
460 FILE *fo;
461 struct sbuf *sb;
462 char *p;
463
464 /* Add main configuration file to the list of files to be included */
465 cfgfile_add(PREFIX);
466 p = path("config.c.new");
467 fo = fopen(p, "w");
468 if (!fo)
469 err(2, "%s", p);
470 sb = sbuf_new(NULL, NULL, 2048, SBUF_AUTOEXTEND);
471 assert(sb != NULL);
472 sbuf_clear(sb);
473 /*
474 * Try to read all configuration files. Since those will be present as
475 * C string in the macro, we have to slash their ends then the line
476 * wraps.
477 */
478 if (filebased) {
479 /* Is needed, can be used for backward compatibility. */
480 configfile_filebased(sb);
481 } else {
482 configfile_dynamic(sb);
483 }
484 sbuf_finish(sb);
485 /*
486 * We print first part of the tamplate, replace our tag with
487 * configuration files content and later continue writing our
488 * template.
489 */
490 p = strstr(kernconfstr, KERNCONFTAG);
491 if (p == NULL)
492 errx(EXIT_FAILURE, "Something went terribly wrong!");
493 *p = '\0';
494 fprintf(fo, "%s", kernconfstr);
495 fprintf(fo, "%s", sbuf_data(sb));
496 p += strlen(KERNCONFTAG);
497 fprintf(fo, "%s", p);
498 sbuf_delete(sb);
499 fclose(fo);
500 moveifchanged(path("config.c.new"), path("config.c"));
501 cfgfile_removeall();
502}
503
504/*
505 * moveifchanged --
506 * compare two files; rename if changed.
507 */
508void
509moveifchanged(const char *from_name, const char *to_name)
510{
511 char *p, *q;
512 int changed;
513 size_t tsize;
514 struct stat from_sb, to_sb;
515 int from_fd, to_fd;
516
517 changed = 0;
518
519 if ((from_fd = open(from_name, O_RDONLY)) < 0)
520 err(EX_OSERR, "moveifchanged open(%s)", from_name);
521
522 if ((to_fd = open(to_name, O_RDONLY)) < 0)
523 changed++;
524
525 if (!changed && fstat(from_fd, &from_sb) < 0)
526 err(EX_OSERR, "moveifchanged fstat(%s)", from_name);
527
528 if (!changed && fstat(to_fd, &to_sb) < 0)
529 err(EX_OSERR, "moveifchanged fstat(%s)", to_name);
530
531 if (!changed && from_sb.st_size != to_sb.st_size)
532 changed++;
533
534 tsize = (size_t)from_sb.st_size;
535
536 if (!changed) {
537 p = mmap(NULL, tsize, PROT_READ, MAP_SHARED, from_fd, (off_t)0);
538#ifndef MAP_FAILED
539#define MAP_FAILED ((caddr_t) -1)
540#endif
541 if (p == MAP_FAILED)
542 err(EX_OSERR, "mmap %s", from_name);
543 q = mmap(NULL, tsize, PROT_READ, MAP_SHARED, to_fd, (off_t)0);
544 if (q == MAP_FAILED)
545 err(EX_OSERR, "mmap %s", to_name);
546
547 changed = memcmp(p, q, tsize);
548 munmap(p, tsize);
549 munmap(q, tsize);
550 }
551 if (changed) {
552 if (rename(from_name, to_name) < 0)
553 err(EX_OSERR, "rename(%s, %s)", from_name, to_name);
554 } else {
555 if (unlink(from_name) < 0)
556 err(EX_OSERR, "unlink(%s)", from_name);
557 }
558}
559
560static void
561cleanheaders(char *p)
562{
563 DIR *dirp;
564 struct dirent *dp;
565 struct file_list *fl;
566 struct hdr_list *hl;
567 int i;
568
569 remember("y.tab.h");
570 remember("setdefs.h");
571 STAILQ_FOREACH(fl, &ftab, f_next)
572 remember(fl->f_fn);
573
574 /*
575 * Scan the build directory and clean out stuff that looks like
576 * it might have been a leftover NFOO header, etc.
577 */
578 if ((dirp = opendir(p)) == NULL)
579 err(EX_OSERR, "opendir %s", p);
580 while ((dp = readdir(dirp)) != NULL) {
581 i = dp->d_namlen - 2;
582 /* Skip non-headers */
583 if (dp->d_name[i] != '.' || dp->d_name[i + 1] != 'h')
584 continue;
585 /* Skip special stuff, eg: bus_if.h, but check opt_*.h */
586 if (index(dp->d_name, '_') &&
587 strncmp(dp->d_name, "opt_", 4) != 0)
588 continue;
589 /* Check if it is a target file */
590 for (hl = htab; hl != NULL; hl = hl->h_next) {
591 if (eq(dp->d_name, hl->h_name)) {
592 break;
593 }
594 }
595 if (hl)
596 continue;
597 printf("Removing stale header: %s\n", dp->d_name);
598 if (unlink(path(dp->d_name)) == -1)
599 warn("unlink %s", dp->d_name);
600 }
601 (void)closedir(dirp);
602}
603
604void
605remember(const char *file)
606{
607 char *s;
608 struct hdr_list *hl;
609
610 if ((s = strrchr(file, '/')) != NULL)
611 s = ns(s + 1);
612 else
613 s = ns(file);
614
615 if (index(s, '_') && strncmp(s, "opt_", 4) != 0) {
616 free(s);
617 return;
618 }
619 for (hl = htab; hl != NULL; hl = hl->h_next) {
620 if (eq(s, hl->h_name)) {
621 free(s);
622 return;
623 }
624 }
625 hl = calloc(1, sizeof(*hl));
626 hl->h_name = s;
627 hl->h_next = htab;
628 htab = hl;
629}
630
631/*
632 * This one is quick hack. Will be probably moved to elf(3) interface.
633 * It takes kernel configuration file name, passes it as an argument to
634 * elfdump -a, which output is parsed by some UNIX tools...
635 */
636static void
637kernconfdump(const char *file)
638{
639 struct stat st;
640 FILE *fp, *pp;
641 int error, len, osz, r;
642 unsigned int off, size;
643 char *cmd, *o;
644
645 r = open(file, O_RDONLY);
646 if (r == -1)
647 errx(EXIT_FAILURE, "Couldn't open file '%s'", file);
648 error = fstat(r, &st);
649 if (error == -1)
650 errx(EXIT_FAILURE, "fstat() failed");
651 if (S_ISDIR(st.st_mode))
652 errx(EXIT_FAILURE, "'%s' is a directory", file);
653 fp = fdopen(r, "r");
654 if (fp == NULL)
655 errx(EXIT_FAILURE, "fdopen() failed");
656 osz = 1024;
657 o = calloc(1, osz);
658 if (o == NULL)
659 errx(EXIT_FAILURE, "Couldn't allocate memory");
660 /* ELF note section header. */
661 asprintf(&cmd, "/usr/bin/elfdump -c %s | grep -A 5 kern_conf"
662 "| tail -2 | cut -d ' ' -f 2 | paste - - -", file);
663 if (cmd == NULL)
664 errx(EXIT_FAILURE, "asprintf() failed");
665 pp = popen(cmd, "r");
666 if (pp == NULL)
667 errx(EXIT_FAILURE, "popen() failed");
668 free(cmd);
669 len = fread(o, osz, 1, pp);
670 pclose(pp);
671 r = sscanf(o, "%d\t%d", &off, &size);
672 free(o);
673 if (r != 2)
674 errx(EXIT_FAILURE, "File %s doesn't contain configuration "
675 "file. Either unsupported, or not compiled with "
676 "INCLUDE_CONFIG_FILE", file);
677 r = fseek(fp, off, SEEK_CUR);
678 if (r != 0)
679 errx(EXIT_FAILURE, "fseek() failed");
680 while ((r = fgetc(fp)) != EOF && size-- > 0)
681 fputc(r, stdout);
682 fclose(fp);
683}
| 428 } else {
429 sbuf_printf(sb, "%s", lend);
430 }
431 }
432 /*
433 * Mark this file as containing everything we need.
434 */
435 STAILQ_FOREACH(d, &dtab, d_next)
436 sbuf_printf(sb, "device\t%s%s", d->d_name, lend);
437 free(lend);
438}
439
440/*
441 * Generate file from the configuration files.
442 */
443static void
444configfile_filebased(struct sbuf *sb)
445{
446 FILE *cff;
447 struct cfgfile *cf;
448 int i;
449
450 STAILQ_FOREACH(cf, &cfgfiles, cfg_next) {
451 cff = fopen(cf->cfg_path, "r");
452 if (cff == NULL) {
453 warn("Couldn't open file %s", cf->cfg_path);
454 continue;
455 }
456 while ((i = getc(cff)) != EOF) {
457 if (i == '\n')
458 sbuf_printf(sb, "\\n\\\n");
459 else if (i == '"' || i == '\'')
460 sbuf_printf(sb, "\\%c", i);
461 else
462 sbuf_putc(sb, i);
463 }
464 fclose(cff);
465 }
466}
467
468static void
469configfile(void)
470{
471 FILE *fo;
472 struct sbuf *sb;
473 char *p;
474
475 /* Add main configuration file to the list of files to be included */
476 cfgfile_add(PREFIX);
477 p = path("config.c.new");
478 fo = fopen(p, "w");
479 if (!fo)
480 err(2, "%s", p);
481 sb = sbuf_new(NULL, NULL, 2048, SBUF_AUTOEXTEND);
482 assert(sb != NULL);
483 sbuf_clear(sb);
484 /*
485 * Try to read all configuration files. Since those will be present as
486 * C string in the macro, we have to slash their ends then the line
487 * wraps.
488 */
489 if (filebased) {
490 /* Is needed, can be used for backward compatibility. */
491 configfile_filebased(sb);
492 } else {
493 configfile_dynamic(sb);
494 }
495 sbuf_finish(sb);
496 /*
497 * We print first part of the tamplate, replace our tag with
498 * configuration files content and later continue writing our
499 * template.
500 */
501 p = strstr(kernconfstr, KERNCONFTAG);
502 if (p == NULL)
503 errx(EXIT_FAILURE, "Something went terribly wrong!");
504 *p = '\0';
505 fprintf(fo, "%s", kernconfstr);
506 fprintf(fo, "%s", sbuf_data(sb));
507 p += strlen(KERNCONFTAG);
508 fprintf(fo, "%s", p);
509 sbuf_delete(sb);
510 fclose(fo);
511 moveifchanged(path("config.c.new"), path("config.c"));
512 cfgfile_removeall();
513}
514
515/*
516 * moveifchanged --
517 * compare two files; rename if changed.
518 */
519void
520moveifchanged(const char *from_name, const char *to_name)
521{
522 char *p, *q;
523 int changed;
524 size_t tsize;
525 struct stat from_sb, to_sb;
526 int from_fd, to_fd;
527
528 changed = 0;
529
530 if ((from_fd = open(from_name, O_RDONLY)) < 0)
531 err(EX_OSERR, "moveifchanged open(%s)", from_name);
532
533 if ((to_fd = open(to_name, O_RDONLY)) < 0)
534 changed++;
535
536 if (!changed && fstat(from_fd, &from_sb) < 0)
537 err(EX_OSERR, "moveifchanged fstat(%s)", from_name);
538
539 if (!changed && fstat(to_fd, &to_sb) < 0)
540 err(EX_OSERR, "moveifchanged fstat(%s)", to_name);
541
542 if (!changed && from_sb.st_size != to_sb.st_size)
543 changed++;
544
545 tsize = (size_t)from_sb.st_size;
546
547 if (!changed) {
548 p = mmap(NULL, tsize, PROT_READ, MAP_SHARED, from_fd, (off_t)0);
549#ifndef MAP_FAILED
550#define MAP_FAILED ((caddr_t) -1)
551#endif
552 if (p == MAP_FAILED)
553 err(EX_OSERR, "mmap %s", from_name);
554 q = mmap(NULL, tsize, PROT_READ, MAP_SHARED, to_fd, (off_t)0);
555 if (q == MAP_FAILED)
556 err(EX_OSERR, "mmap %s", to_name);
557
558 changed = memcmp(p, q, tsize);
559 munmap(p, tsize);
560 munmap(q, tsize);
561 }
562 if (changed) {
563 if (rename(from_name, to_name) < 0)
564 err(EX_OSERR, "rename(%s, %s)", from_name, to_name);
565 } else {
566 if (unlink(from_name) < 0)
567 err(EX_OSERR, "unlink(%s)", from_name);
568 }
569}
570
571static void
572cleanheaders(char *p)
573{
574 DIR *dirp;
575 struct dirent *dp;
576 struct file_list *fl;
577 struct hdr_list *hl;
578 int i;
579
580 remember("y.tab.h");
581 remember("setdefs.h");
582 STAILQ_FOREACH(fl, &ftab, f_next)
583 remember(fl->f_fn);
584
585 /*
586 * Scan the build directory and clean out stuff that looks like
587 * it might have been a leftover NFOO header, etc.
588 */
589 if ((dirp = opendir(p)) == NULL)
590 err(EX_OSERR, "opendir %s", p);
591 while ((dp = readdir(dirp)) != NULL) {
592 i = dp->d_namlen - 2;
593 /* Skip non-headers */
594 if (dp->d_name[i] != '.' || dp->d_name[i + 1] != 'h')
595 continue;
596 /* Skip special stuff, eg: bus_if.h, but check opt_*.h */
597 if (index(dp->d_name, '_') &&
598 strncmp(dp->d_name, "opt_", 4) != 0)
599 continue;
600 /* Check if it is a target file */
601 for (hl = htab; hl != NULL; hl = hl->h_next) {
602 if (eq(dp->d_name, hl->h_name)) {
603 break;
604 }
605 }
606 if (hl)
607 continue;
608 printf("Removing stale header: %s\n", dp->d_name);
609 if (unlink(path(dp->d_name)) == -1)
610 warn("unlink %s", dp->d_name);
611 }
612 (void)closedir(dirp);
613}
614
615void
616remember(const char *file)
617{
618 char *s;
619 struct hdr_list *hl;
620
621 if ((s = strrchr(file, '/')) != NULL)
622 s = ns(s + 1);
623 else
624 s = ns(file);
625
626 if (index(s, '_') && strncmp(s, "opt_", 4) != 0) {
627 free(s);
628 return;
629 }
630 for (hl = htab; hl != NULL; hl = hl->h_next) {
631 if (eq(s, hl->h_name)) {
632 free(s);
633 return;
634 }
635 }
636 hl = calloc(1, sizeof(*hl));
637 hl->h_name = s;
638 hl->h_next = htab;
639 htab = hl;
640}
641
642/*
643 * This one is quick hack. Will be probably moved to elf(3) interface.
644 * It takes kernel configuration file name, passes it as an argument to
645 * elfdump -a, which output is parsed by some UNIX tools...
646 */
647static void
648kernconfdump(const char *file)
649{
650 struct stat st;
651 FILE *fp, *pp;
652 int error, len, osz, r;
653 unsigned int off, size;
654 char *cmd, *o;
655
656 r = open(file, O_RDONLY);
657 if (r == -1)
658 errx(EXIT_FAILURE, "Couldn't open file '%s'", file);
659 error = fstat(r, &st);
660 if (error == -1)
661 errx(EXIT_FAILURE, "fstat() failed");
662 if (S_ISDIR(st.st_mode))
663 errx(EXIT_FAILURE, "'%s' is a directory", file);
664 fp = fdopen(r, "r");
665 if (fp == NULL)
666 errx(EXIT_FAILURE, "fdopen() failed");
667 osz = 1024;
668 o = calloc(1, osz);
669 if (o == NULL)
670 errx(EXIT_FAILURE, "Couldn't allocate memory");
671 /* ELF note section header. */
672 asprintf(&cmd, "/usr/bin/elfdump -c %s | grep -A 5 kern_conf"
673 "| tail -2 | cut -d ' ' -f 2 | paste - - -", file);
674 if (cmd == NULL)
675 errx(EXIT_FAILURE, "asprintf() failed");
676 pp = popen(cmd, "r");
677 if (pp == NULL)
678 errx(EXIT_FAILURE, "popen() failed");
679 free(cmd);
680 len = fread(o, osz, 1, pp);
681 pclose(pp);
682 r = sscanf(o, "%d\t%d", &off, &size);
683 free(o);
684 if (r != 2)
685 errx(EXIT_FAILURE, "File %s doesn't contain configuration "
686 "file. Either unsupported, or not compiled with "
687 "INCLUDE_CONFIG_FILE", file);
688 r = fseek(fp, off, SEEK_CUR);
689 if (r != 0)
690 errx(EXIT_FAILURE, "fseek() failed");
691 while ((r = fgetc(fp)) != EOF && size-- > 0)
692 fputc(r, stdout);
693 fclose(fp);
694}
|