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b0c9067d | 1 | /* Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
591e1ffb UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Andreas Jaeger <aj@suse.de>, 1999. | |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
591e1ffb UD |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
591e1ffb | 14 | |
41bdb6e2 AJ |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, write to the Free | |
17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
18 | 02111-1307 USA. */ | |
591e1ffb | 19 | |
7b0d235c | 20 | #include <alloca.h> |
591e1ffb UD |
21 | #include <argp.h> |
22 | #include <dirent.h> | |
9c95d361 | 23 | #include <elf.h> |
591e1ffb UD |
24 | #include <error.h> |
25 | #include <errno.h> | |
5a35dfca | 26 | #include <inttypes.h> |
591e1ffb UD |
27 | #include <libintl.h> |
28 | #include <stdio.h> | |
c96873d7 | 29 | #include <stdio_ext.h> |
591e1ffb UD |
30 | #include <stdlib.h> |
31 | #include <string.h> | |
32 | #include <unistd.h> | |
33 | #include <sys/fcntl.h> | |
34 | #include <sys/mman.h> | |
35 | #include <sys/stat.h> | |
36 | #include <sys/types.h> | |
37 | ||
38 | #include "ldconfig.h" | |
45eca4d1 | 39 | #include "dl-cache.h" |
591e1ffb | 40 | |
45eca4d1 | 41 | #include "dl-procinfo.h" |
591e1ffb UD |
42 | |
43 | #ifndef LD_SO_CONF | |
8ca91b36 | 44 | # define LD_SO_CONF SYSCONFDIR "/ld.so.conf" |
591e1ffb UD |
45 | #endif |
46 | ||
47 | /* Get libc version number. */ | |
48 | #include <version.h> | |
49 | ||
50 | #define PACKAGE _libc_intl_domainname | |
51 | ||
591e1ffb UD |
52 | static const struct |
53 | { | |
54 | const char *name; | |
55 | int flag; | |
a986484f | 56 | } lib_types[] = |
591e1ffb UD |
57 | { |
58 | {"libc4", FLAG_LIBC4}, | |
59 | {"libc5", FLAG_ELF_LIBC5}, | |
60 | {"libc6", FLAG_ELF_LIBC6}, | |
61 | {"glibc2", FLAG_ELF_LIBC6} | |
45eca4d1 | 62 | }; |
591e1ffb UD |
63 | |
64 | ||
65 | /* List of directories to handle. */ | |
66 | struct dir_entry | |
67 | { | |
68 | char *path; | |
69 | int flag; | |
4ceae915 AJ |
70 | ino64_t ino; |
71 | dev_t dev; | |
591e1ffb UD |
72 | struct dir_entry *next; |
73 | }; | |
74 | ||
75 | /* The list is unsorted, contains no duplicates. Entries are added at | |
76 | the end. */ | |
77 | static struct dir_entry *dir_entries; | |
78 | ||
79 | /* Flags for different options. */ | |
80 | /* Print Cache. */ | |
c96873d7 | 81 | static int opt_print_cache; |
591e1ffb UD |
82 | |
83 | /* Be verbose. */ | |
c96873d7 | 84 | int opt_verbose; |
591e1ffb | 85 | |
45eca4d1 UD |
86 | /* Format to support. */ |
87 | /* 0: only libc5/glibc2; 1: both; 2: only glibc 2.2. */ | |
88 | int opt_format = 1; | |
89 | ||
591e1ffb UD |
90 | /* Build cache. */ |
91 | static int opt_build_cache = 1; | |
92 | ||
93 | /* Generate links. */ | |
94 | static int opt_link = 1; | |
95 | ||
96 | /* Only process directories specified on the command line. */ | |
c96873d7 | 97 | static int opt_only_cline; |
591e1ffb UD |
98 | |
99 | /* Path to root for chroot. */ | |
100 | static char *opt_chroot; | |
101 | ||
b85697f6 | 102 | /* Manually link given shared libraries. */ |
c96873d7 | 103 | static int opt_manual_link; |
b85697f6 | 104 | |
591e1ffb | 105 | /* Cache file to use. */ |
b4a555d6 | 106 | static char *cache_file; |
591e1ffb UD |
107 | |
108 | /* Configuration file. */ | |
109 | static const char *config_file; | |
110 | ||
0cfbb8c6 UD |
111 | /* Mask to use for important hardware capabilities. */ |
112 | static unsigned long int hwcap_mask = HWCAP_IMPORTANT; | |
113 | ||
591e1ffb UD |
114 | /* Name and version of program. */ |
115 | static void print_version (FILE *stream, struct argp_state *state); | |
116 | void (*argp_program_version_hook) (FILE *, struct argp_state *) | |
117 | = print_version; | |
118 | ||
119 | /* Definitions of arguments for argp functions. */ | |
120 | static const struct argp_option options[] = | |
121 | { | |
122 | { "print-cache", 'p', NULL, 0, N_("Print cache"), 0}, | |
123 | { "verbose", 'v', NULL, 0, N_("Generate verbose messages"), 0}, | |
124 | { NULL, 'N', NULL, 0, N_("Don't build cache"), 0}, | |
125 | { NULL, 'X', NULL, 0, N_("Don't generate links"), 0}, | |
126 | { NULL, 'r', "ROOT", 0, N_("Change to and use ROOT as root directory"), 0}, | |
127 | { NULL, 'C', "CACHE", 0, N_("Use CACHE as cache file"), 0}, | |
128 | { NULL, 'f', "CONF", 0, N_("Use CONF as configuration file"), 0}, | |
129 | { NULL, 'n', NULL, 0, N_("Only process directories specified on the command line. Don't build cache."), 0}, | |
b85697f6 | 130 | { NULL, 'l', NULL, 0, N_("Manually link individual libraries."), 0}, |
45eca4d1 | 131 | { "format", 'c', "FORMAT", 0, N_("Format to use: new, old or compat (default)"), 0}, |
591e1ffb UD |
132 | { NULL, 0, NULL, 0, NULL, 0 } |
133 | }; | |
134 | ||
11bf8ce1 UD |
135 | #define PROCINFO_CLASS static |
136 | #include <dl-procinfo.c> | |
137 | ||
591e1ffb UD |
138 | /* Short description of program. */ |
139 | static const char doc[] = N_("Configure Dynamic Linker Run Time Bindings."); | |
140 | ||
141 | /* Prototype for option handler. */ | |
142 | static error_t parse_opt (int key, char *arg, struct argp_state *state); | |
143 | ||
144 | /* Data structure to communicate with argp functions. */ | |
145 | static struct argp argp = | |
146 | { | |
147 | options, parse_opt, NULL, doc, NULL, NULL, NULL | |
148 | }; | |
149 | ||
a6c1c03a AJ |
150 | /* Check if string corresponds to an important hardware capability or |
151 | a platform. */ | |
45eca4d1 | 152 | static int |
a6c1c03a | 153 | is_hwcap_platform (const char *name) |
45eca4d1 UD |
154 | { |
155 | int hwcap_idx = _dl_string_hwcap (name); | |
8ca91b36 | 156 | |
0cfbb8c6 | 157 | if (hwcap_idx != -1 && ((1 << hwcap_idx) & hwcap_mask)) |
45eca4d1 | 158 | return 1; |
a6c1c03a AJ |
159 | |
160 | hwcap_idx = _dl_string_platform (name); | |
161 | if (hwcap_idx != -1) | |
162 | return 1; | |
163 | ||
676fde70 UD |
164 | #ifdef USE_TLS |
165 | if (strcmp (name, "tls") == 0) | |
166 | return 1; | |
167 | #endif | |
168 | ||
45eca4d1 UD |
169 | return 0; |
170 | } | |
171 | ||
a6c1c03a AJ |
172 | /* Get hwcap (including platform) encoding of path. */ |
173 | static uint64_t | |
45eca4d1 UD |
174 | path_hwcap (const char *path) |
175 | { | |
176 | char *str = xstrdup (path); | |
177 | char *ptr; | |
a6c1c03a AJ |
178 | uint64_t hwcap = 0; |
179 | uint64_t h; | |
45eca4d1 UD |
180 | |
181 | size_t len; | |
182 | ||
183 | len = strlen (str); | |
184 | if (str[len] == '/') | |
185 | str[len] = '\0'; | |
186 | ||
187 | /* Search pathname from the end and check for hwcap strings. */ | |
188 | for (;;) | |
189 | { | |
190 | ptr = strrchr (str, '/'); | |
191 | ||
192 | if (ptr == NULL) | |
193 | break; | |
194 | ||
a6c1c03a | 195 | h = _dl_string_hwcap (ptr + 1); |
45eca4d1 | 196 | |
59553897 UD |
197 | if (h == (uint64_t) -1) |
198 | { | |
199 | h = _dl_string_platform (ptr + 1); | |
200 | if (h == (uint64_t) -1) | |
676fde70 UD |
201 | { |
202 | #ifdef USE_TLS | |
203 | if (strcmp (ptr + 1, "tls") == 0) | |
204 | h = 63; | |
205 | else | |
206 | #endif | |
207 | break; | |
208 | } | |
59553897 | 209 | } |
a6c1c03a | 210 | hwcap += 1ULL << h; |
591e1ffb | 211 | |
45eca4d1 UD |
212 | /* Search the next part of the path. */ |
213 | *ptr = '\0'; | |
214 | } | |
215 | ||
216 | free (str); | |
217 | return hwcap; | |
218 | } | |
591e1ffb UD |
219 | |
220 | /* Handle program arguments. */ | |
221 | static error_t | |
222 | parse_opt (int key, char *arg, struct argp_state *state) | |
223 | { | |
224 | switch (key) | |
225 | { | |
226 | case 'C': | |
227 | cache_file = arg; | |
228 | break; | |
229 | case 'f': | |
230 | config_file = arg; | |
231 | break; | |
b85697f6 UD |
232 | case 'l': |
233 | opt_manual_link = 1; | |
234 | break; | |
591e1ffb UD |
235 | case 'N': |
236 | opt_build_cache = 0; | |
237 | break; | |
238 | case 'n': | |
239 | opt_build_cache = 0; | |
240 | opt_only_cline = 1; | |
241 | break; | |
242 | case 'p': | |
243 | opt_print_cache = 1; | |
244 | break; | |
245 | case 'r': | |
246 | opt_chroot = arg; | |
247 | break; | |
248 | case 'v': | |
249 | opt_verbose = 1; | |
250 | break; | |
251 | case 'X': | |
252 | opt_link = 0; | |
253 | break; | |
45eca4d1 UD |
254 | case 'c': |
255 | if (strcmp (arg, "old") == 0) | |
256 | opt_format = 0; | |
257 | else if (strcmp (arg, "compat") == 0) | |
258 | opt_format = 1; | |
259 | else if (strcmp (arg, "new") == 0) | |
260 | opt_format = 2; | |
261 | break; | |
591e1ffb UD |
262 | default: |
263 | return ARGP_ERR_UNKNOWN; | |
264 | } | |
265 | ||
266 | return 0; | |
267 | } | |
268 | ||
269 | /* Print the version information. */ | |
270 | static void | |
271 | print_version (FILE *stream, struct argp_state *state) | |
272 | { | |
273 | fprintf (stream, "ldconfig (GNU %s) %s\n", PACKAGE, VERSION); | |
274 | fprintf (stream, gettext ("\ | |
275 | Copyright (C) %s Free Software Foundation, Inc.\n\ | |
276 | This is free software; see the source for copying conditions. There is NO\n\ | |
277 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ | |
b0c9067d | 278 | "), "2003"); |
591e1ffb UD |
279 | fprintf (stream, gettext ("Written by %s.\n"), |
280 | "Andreas Jaeger"); | |
281 | } | |
282 | ||
a8fd59b0 AJ |
283 | /* Add a single directory entry. */ |
284 | static void | |
285 | add_single_dir (struct dir_entry *entry, int verbose) | |
286 | { | |
287 | struct dir_entry *ptr, *prev; | |
288 | ||
289 | ptr = dir_entries; | |
290 | prev = ptr; | |
291 | while (ptr != NULL) | |
292 | { | |
293 | /* Check for duplicates. */ | |
4ceae915 | 294 | if (ptr->ino == entry->ino && ptr->dev == entry->dev) |
a8fd59b0 AJ |
295 | { |
296 | if (opt_verbose && verbose) | |
297 | error (0, 0, _("Path `%s' given more than once"), entry->path); | |
298 | /* Use the newer information. */ | |
299 | ptr->flag = entry->flag; | |
4ceae915 | 300 | free (entry->path); |
a8fd59b0 AJ |
301 | free (entry); |
302 | break; | |
303 | } | |
304 | prev = ptr; | |
305 | ptr = ptr->next; | |
306 | } | |
307 | /* Is this the first entry? */ | |
308 | if (ptr == NULL && dir_entries == NULL) | |
309 | dir_entries = entry; | |
310 | else if (ptr == NULL) | |
311 | prev->next = entry; | |
312 | } | |
313 | ||
591e1ffb UD |
314 | /* Add one directory to the list of directories to process. */ |
315 | static void | |
316 | add_dir (const char *line) | |
317 | { | |
318 | char *equal_sign; | |
a8fd59b0 | 319 | struct dir_entry *entry; |
591e1ffb | 320 | unsigned int i; |
4ceae915 | 321 | struct stat64 stat_buf; |
45eca4d1 | 322 | |
591e1ffb UD |
323 | entry = xmalloc (sizeof (struct dir_entry)); |
324 | entry->next = NULL; | |
45eca4d1 | 325 | |
591e1ffb UD |
326 | /* Search for an '=' sign. */ |
327 | entry->path = xstrdup (line); | |
328 | equal_sign = strchr (entry->path, '='); | |
329 | if (equal_sign) | |
330 | { | |
331 | *equal_sign = '\0'; | |
332 | ++equal_sign; | |
333 | entry->flag = FLAG_ANY; | |
a986484f | 334 | for (i = 0; i < sizeof (lib_types) / sizeof (lib_types[0]); ++i) |
591e1ffb UD |
335 | if (strcmp (equal_sign, lib_types[i].name) == 0) |
336 | { | |
337 | entry->flag = lib_types[i].flag; | |
338 | break; | |
339 | } | |
340 | if (entry->flag == FLAG_ANY) | |
341 | error (0, 0, _("%s is not a known library type"), equal_sign); | |
342 | } | |
343 | else | |
344 | { | |
345 | entry->flag = FLAG_ANY; | |
346 | } | |
347 | ||
69acbe9f UD |
348 | /* Canonify path: for now only remove leading and trailing |
349 | whitespace and the trailing slashes slashes. */ | |
591e1ffb | 350 | i = strlen (entry->path) - 1; |
69acbe9f UD |
351 | |
352 | while (isspace (entry->path[i]) && i > 0) | |
353 | entry->path[i--] = '\0'; | |
354 | ||
591e1ffb | 355 | while (entry->path[i] == '/' && i > 0) |
69acbe9f | 356 | entry->path[i--] = '\0'; |
45eca4d1 | 357 | |
4ceae915 AJ |
358 | if (stat64 (entry->path, &stat_buf)) |
359 | { | |
8645ad47 AJ |
360 | if (opt_verbose) |
361 | error (0, errno, _("Can't stat %s"), entry->path); | |
4ceae915 AJ |
362 | free (entry->path); |
363 | free (entry); | |
364 | return; | |
365 | } | |
366 | ||
367 | entry->ino = stat_buf.st_ino; | |
368 | entry->dev = stat_buf.st_dev; | |
369 | ||
370 | add_single_dir (entry, 1); | |
591e1ffb UD |
371 | } |
372 | ||
373 | ||
b4a555d6 UD |
374 | static int |
375 | chroot_stat (const char *real_path, const char *path, struct stat64 *st) | |
376 | { | |
377 | int ret; | |
378 | char *canon_path; | |
379 | ||
380 | if (!opt_chroot) | |
381 | return stat64 (real_path, st); | |
382 | ||
383 | ret = lstat64 (real_path, st); | |
384 | if (ret || !S_ISLNK (st->st_mode)) | |
385 | return ret; | |
386 | ||
387 | canon_path = chroot_canon (opt_chroot, path); | |
388 | if (canon_path == NULL) | |
389 | return -1; | |
390 | ||
391 | ret = stat64 (canon_path, st); | |
392 | free (canon_path); | |
393 | return ret; | |
394 | } | |
395 | ||
591e1ffb UD |
396 | /* Create a symbolic link from soname to libname in directory path. */ |
397 | static void | |
b4a555d6 UD |
398 | create_links (const char *real_path, const char *path, const char *libname, |
399 | const char *soname) | |
591e1ffb | 400 | { |
7b0d235c | 401 | char *full_libname, *full_soname; |
b4a555d6 UD |
402 | char *real_full_libname, *real_full_soname; |
403 | struct stat64 stat_lib, stat_so, lstat_so; | |
591e1ffb UD |
404 | int do_link = 1; |
405 | int do_remove = 1; | |
406 | /* XXX: The logics in this function should be simplified. */ | |
45eca4d1 | 407 | |
591e1ffb | 408 | /* Get complete path. */ |
7b0d235c | 409 | full_libname = alloca (strlen (path) + strlen (libname) + 2); |
7c545dbe | 410 | full_soname = alloca (strlen (path) + strlen (soname) + 2); |
7b0d235c AJ |
411 | sprintf (full_libname, "%s/%s", path, libname); |
412 | sprintf (full_soname, "%s/%s", path, soname); | |
b4a555d6 UD |
413 | if (opt_chroot) |
414 | { | |
415 | real_full_libname = alloca (strlen (real_path) + strlen (libname) + 2); | |
7c545dbe | 416 | real_full_soname = alloca (strlen (real_path) + strlen (soname) + 2); |
b4a555d6 UD |
417 | sprintf (real_full_libname, "%s/%s", real_path, libname); |
418 | sprintf (real_full_soname, "%s/%s", real_path, soname); | |
419 | } | |
420 | else | |
421 | { | |
422 | real_full_libname = full_libname; | |
423 | real_full_soname = full_soname; | |
424 | } | |
591e1ffb UD |
425 | |
426 | /* Does soname already exist and point to the right library? */ | |
b4a555d6 | 427 | if (chroot_stat (real_full_soname, full_soname, &stat_so) == 0) |
591e1ffb | 428 | { |
b4a555d6 | 429 | if (chroot_stat (real_full_libname, full_libname, &stat_lib)) |
591e1ffb UD |
430 | { |
431 | error (0, 0, _("Can't stat %s\n"), full_libname); | |
432 | return; | |
433 | } | |
434 | if (stat_lib.st_dev == stat_so.st_dev | |
435 | && stat_lib.st_ino == stat_so.st_ino) | |
436 | /* Link is already correct. */ | |
437 | do_link = 0; | |
b4a555d6 | 438 | else if (lstat64 (full_soname, &lstat_so) == 0 |
591e1ffb UD |
439 | && !S_ISLNK (lstat_so.st_mode)) |
440 | { | |
441 | error (0, 0, _("%s is not a symbolic link\n"), full_soname); | |
442 | do_link = 0; | |
443 | do_remove = 0; | |
444 | } | |
445 | } | |
b4a555d6 | 446 | else if (lstat64 (real_full_soname, &lstat_so) != 0 |
591e1ffb UD |
447 | || !S_ISLNK (lstat_so.st_mode)) |
448 | /* Unless it is a stale symlink, there is no need to remove. */ | |
449 | do_remove = 0; | |
450 | ||
451 | if (opt_verbose) | |
452 | printf ("\t%s -> %s", soname, libname); | |
453 | ||
454 | if (do_link && opt_link) | |
455 | { | |
456 | /* Remove old link. */ | |
457 | if (do_remove) | |
b4a555d6 | 458 | if (unlink (real_full_soname)) |
591e1ffb UD |
459 | { |
460 | error (0, 0, _("Can't unlink %s"), full_soname); | |
461 | do_link = 0; | |
462 | } | |
463 | /* Create symbolic link. */ | |
b4a555d6 | 464 | if (do_link && symlink (libname, real_full_soname)) |
591e1ffb UD |
465 | { |
466 | error (0, 0, _("Can't link %s to %s"), full_soname, libname); | |
467 | do_link = 0; | |
468 | } | |
469 | if (opt_verbose) | |
470 | { | |
471 | if (do_link) | |
472 | fputs (_(" (changed)\n"), stdout); | |
473 | else | |
474 | fputs (_(" (SKIPPED)\n"), stdout); | |
475 | } | |
476 | } | |
477 | else if (opt_verbose) | |
478 | fputs ("\n", stdout); | |
479 | } | |
480 | ||
b85697f6 UD |
481 | /* Manually link the given library. */ |
482 | static void | |
483 | manual_link (char *library) | |
484 | { | |
485 | char *path; | |
b4a555d6 UD |
486 | char *real_path; |
487 | char *real_library; | |
b85697f6 UD |
488 | char *libname; |
489 | char *soname; | |
b4a555d6 | 490 | struct stat64 stat_buf; |
b85697f6 | 491 | int flag; |
a986484f | 492 | unsigned int osversion; |
b85697f6 UD |
493 | |
494 | /* Prepare arguments for create_links call. Split library name in | |
495 | directory and filename first. Since path is allocated, we've got | |
496 | to be careful to free at the end. */ | |
497 | path = xstrdup (library); | |
498 | libname = strrchr (path, '/'); | |
499 | ||
500 | if (libname) | |
501 | { | |
502 | /* Successfully split names. Check if path is just "/" to avoid | |
503 | an empty path. */ | |
504 | if (libname == path) | |
505 | { | |
506 | libname = library + 1; | |
507 | path = xrealloc (path, 2); | |
508 | strcpy (path, "/"); | |
509 | } | |
510 | else | |
511 | { | |
512 | *libname = '\0'; | |
513 | ++libname; | |
514 | } | |
515 | } | |
516 | else | |
517 | { | |
518 | /* There's no path, construct one. */ | |
519 | libname = library; | |
520 | path = xrealloc (path, 2); | |
521 | strcpy (path, "."); | |
522 | } | |
523 | ||
b4a555d6 UD |
524 | if (opt_chroot) |
525 | { | |
526 | real_path = chroot_canon (opt_chroot, path); | |
527 | if (real_path == NULL) | |
528 | { | |
529 | error (0, errno, _("Can't find %s"), path); | |
530 | free (path); | |
531 | return; | |
532 | } | |
533 | real_library = alloca (strlen (real_path) + strlen (libname) + 2); | |
534 | sprintf (real_library, "%s/%s", real_path, libname); | |
535 | } | |
536 | else | |
537 | { | |
538 | real_path = path; | |
539 | real_library = library; | |
540 | } | |
541 | ||
b85697f6 | 542 | /* Do some sanity checks first. */ |
b4a555d6 | 543 | if (lstat64 (real_library, &stat_buf)) |
b85697f6 UD |
544 | { |
545 | error (0, errno, _("Can't lstat %s"), library); | |
546 | free (path); | |
547 | return; | |
548 | } | |
549 | /* We don't want links here! */ | |
550 | else if (!S_ISREG (stat_buf.st_mode)) | |
551 | { | |
552 | error (0, 0, _("Ignored file %s since it is not a regular file."), | |
553 | library); | |
554 | free (path); | |
555 | return; | |
556 | } | |
a986484f UD |
557 | if (process_file (real_library, library, libname, &flag, &osversion, |
558 | &soname, 0)) | |
b85697f6 UD |
559 | { |
560 | error (0, 0, _("No link created since soname could not be found for %s"), | |
561 | library); | |
562 | free (path); | |
563 | return; | |
564 | } | |
b4a555d6 | 565 | create_links (real_path, path, libname, soname); |
b85697f6 UD |
566 | free (soname); |
567 | free (path); | |
568 | } | |
569 | ||
570 | ||
591e1ffb UD |
571 | /* Read a whole directory and search for libraries. |
572 | The purpose is two-fold: | |
573 | - search for libraries which will be added to the cache | |
574 | - create symbolic links to the soname for each library | |
575 | ||
576 | This has to be done separatly for each directory. | |
45eca4d1 | 577 | |
591e1ffb UD |
578 | To keep track of which libraries to add to the cache and which |
579 | links to create, we save a list of all libraries. | |
580 | ||
581 | The algorithm is basically: | |
582 | for all libraries in the directory do | |
583 | get soname of library | |
584 | if soname is already in list | |
585 | if new library is newer, replace entry | |
586 | otherwise ignore this library | |
587 | otherwise add library to list | |
45eca4d1 | 588 | |
591e1ffb UD |
589 | For example, if the two libraries libxy.so.1.1 and libxy.so.1.2 |
590 | exist and both have the same soname, e.g. libxy.so, a symbolic link | |
591 | is created from libxy.so.1.2 (the newer one) to libxy.so. | |
592 | libxy.so.1.2 and libxy.so are added to the cache - but not | |
593 | libxy.so.1.1. */ | |
594 | ||
595 | /* Information for one library. */ | |
45eca4d1 | 596 | struct dlib_entry |
591e1ffb UD |
597 | { |
598 | char *name; | |
599 | char *soname; | |
600 | int flag; | |
601 | int is_link; | |
a986484f | 602 | unsigned int osversion; |
591e1ffb UD |
603 | struct dlib_entry *next; |
604 | }; | |
605 | ||
606 | ||
607 | static void | |
608 | search_dir (const struct dir_entry *entry) | |
609 | { | |
610 | DIR *dir; | |
2b510e91 | 611 | struct dirent64 *direntry; |
b4a555d6 UD |
612 | char *file_name, *dir_name, *real_file_name, *real_name; |
613 | int file_name_len, real_file_name_len, len; | |
591e1ffb UD |
614 | char *soname; |
615 | struct dlib_entry *dlibs; | |
616 | struct dlib_entry *dlib_ptr; | |
4ceae915 AJ |
617 | struct stat64 lstat_buf, stat_buf; |
618 | int is_link, is_dir; | |
a6c1c03a | 619 | uint64_t hwcap = path_hwcap (entry->path); |
a986484f | 620 | unsigned int osversion; |
45eca4d1 | 621 | |
7b0d235c AJ |
622 | file_name_len = PATH_MAX; |
623 | file_name = alloca (file_name_len); | |
f0189a54 | 624 | |
591e1ffb UD |
625 | dlibs = NULL; |
626 | ||
627 | if (opt_verbose) | |
45eca4d1 UD |
628 | { |
629 | if (hwcap != 0) | |
5a35dfca | 630 | printf ("%s: (hwcap: 0x%" PRIx64 ")\n", entry->path, hwcap); |
45eca4d1 UD |
631 | else |
632 | printf ("%s:\n", entry->path); | |
633 | } | |
634 | ||
b4a555d6 UD |
635 | if (opt_chroot) |
636 | { | |
637 | dir_name = chroot_canon (opt_chroot, entry->path); | |
638 | real_file_name_len = PATH_MAX; | |
639 | real_file_name = alloca (real_file_name_len); | |
640 | } | |
641 | else | |
642 | { | |
643 | dir_name = entry->path; | |
644 | real_file_name_len = 0; | |
645 | real_file_name = file_name; | |
646 | } | |
647 | ||
648 | if (dir_name == NULL || (dir = opendir (dir_name)) == NULL) | |
591e1ffb UD |
649 | { |
650 | if (opt_verbose) | |
651 | error (0, errno, _("Can't open directory %s"), entry->path); | |
b4a555d6 UD |
652 | if (opt_chroot && dir_name) |
653 | free (dir_name); | |
591e1ffb UD |
654 | return; |
655 | } | |
45eca4d1 | 656 | |
2b510e91 | 657 | while ((direntry = readdir64 (dir)) != NULL) |
591e1ffb UD |
658 | { |
659 | int flag; | |
660 | #ifdef _DIRENT_HAVE_D_TYPE | |
661 | /* We only look at links and regular files. */ | |
662 | if (direntry->d_type != DT_UNKNOWN | |
663 | && direntry->d_type != DT_LNK | |
45eca4d1 UD |
664 | && direntry->d_type != DT_REG |
665 | && direntry->d_type != DT_DIR) | |
591e1ffb UD |
666 | continue; |
667 | #endif /* _DIRENT_HAVE_D_TYPE */ | |
45eca4d1 UD |
668 | /* Does this file look like a shared library or is it a hwcap |
669 | subdirectory? The dynamic linker is also considered as | |
670 | shared library. */ | |
671 | if (((strncmp (direntry->d_name, "lib", 3) != 0 | |
672 | && strncmp (direntry->d_name, "ld-", 3) != 0) | |
673 | || strstr (direntry->d_name, ".so") == NULL) | |
95ce33a5 UD |
674 | && ( |
675 | #ifdef _DIRENT_HAVE_D_TYPE | |
676 | direntry->d_type == DT_REG || | |
677 | #endif | |
678 | !is_hwcap_platform (direntry->d_name))) | |
591e1ffb | 679 | continue; |
7b0d235c AJ |
680 | len = strlen (entry->path) + strlen (direntry->d_name); |
681 | if (len > file_name_len) | |
591e1ffb | 682 | { |
7b0d235c AJ |
683 | file_name_len = len + 1; |
684 | file_name = alloca (file_name_len); | |
b4a555d6 UD |
685 | if (!opt_chroot) |
686 | real_file_name = file_name; | |
687 | } | |
688 | sprintf (file_name, "%s/%s", entry->path, direntry->d_name); | |
689 | if (opt_chroot) | |
690 | { | |
691 | len = strlen (dir_name) + strlen (direntry->d_name); | |
692 | if (len > real_file_name_len) | |
693 | { | |
694 | real_file_name_len = len + 1; | |
695 | real_file_name = alloca (real_file_name_len); | |
696 | } | |
697 | sprintf (real_file_name, "%s/%s", dir_name, direntry->d_name); | |
591e1ffb | 698 | } |
7c3002f0 UD |
699 | #ifdef _DIRENT_HAVE_D_TYPE |
700 | if (direntry->d_type != DT_UNKNOWN) | |
4ceae915 | 701 | lstat_buf.st_mode = DTTOIF (direntry->d_type); |
7c3002f0 UD |
702 | else |
703 | #endif | |
95ce33a5 | 704 | if (__builtin_expect (lstat64 (real_file_name, &lstat_buf), 0)) |
7c3002f0 | 705 | { |
95ce33a5 | 706 | error (0, errno, _("Cannot lstat %s"), file_name); |
7c3002f0 UD |
707 | continue; |
708 | } | |
709 | ||
4ceae915 AJ |
710 | is_link = S_ISLNK (lstat_buf.st_mode); |
711 | if (is_link) | |
712 | { | |
713 | /* In case of symlink, we check if the symlink refers to | |
714 | a directory. */ | |
95ce33a5 | 715 | if (__builtin_expect (stat64 (real_file_name, &stat_buf), 0)) |
4ceae915 | 716 | { |
8645ad47 | 717 | if (opt_verbose) |
95ce33a5 | 718 | error (0, errno, _("Cannot stat %s"), file_name); |
647eb037 UD |
719 | |
720 | /* Remove stale symlinks. */ | |
721 | if (strstr (direntry->d_name, ".so.")) | |
722 | unlink (real_file_name); | |
4ceae915 AJ |
723 | continue; |
724 | } | |
725 | is_dir = S_ISDIR (stat_buf.st_mode); | |
726 | } | |
727 | else | |
728 | is_dir = S_ISDIR (lstat_buf.st_mode); | |
729 | ||
730 | if (is_dir && is_hwcap_platform (direntry->d_name)) | |
45eca4d1 | 731 | { |
a8fd59b0 AJ |
732 | /* Handle subdirectory later. */ |
733 | struct dir_entry *new_entry; | |
734 | ||
735 | new_entry = xmalloc (sizeof (struct dir_entry)); | |
7b0d235c | 736 | new_entry->path = xstrdup (file_name); |
a8fd59b0 AJ |
737 | new_entry->flag = entry->flag; |
738 | new_entry->next = NULL; | |
4ceae915 AJ |
739 | if (is_link) |
740 | { | |
741 | new_entry->ino = stat_buf.st_ino; | |
742 | new_entry->dev = stat_buf.st_dev; | |
743 | } | |
744 | else | |
745 | { | |
95ce33a5 UD |
746 | #ifdef _DIRENT_HAVE_D_TYPE |
747 | /* We have filled in lstat only #ifndef | |
748 | _DIRENT_HAVE_D_TYPE. Fill it in if needed. */ | |
749 | if (direntry->d_type != DT_UNKNOWN | |
750 | && __builtin_expect (lstat64 (real_file_name, &lstat_buf), | |
751 | 0)) | |
752 | { | |
753 | error (0, errno, _("Cannot lstat %s"), file_name); | |
754 | free (new_entry->path); | |
755 | free (new_entry); | |
756 | continue; | |
757 | } | |
758 | #endif | |
759 | ||
4ceae915 AJ |
760 | new_entry->ino = lstat_buf.st_ino; |
761 | new_entry->dev = lstat_buf.st_dev; | |
762 | } | |
a8fd59b0 | 763 | add_single_dir (new_entry, 0); |
45eca4d1 UD |
764 | continue; |
765 | } | |
0f843f89 | 766 | else if (!S_ISREG (lstat_buf.st_mode) && !is_link) |
591e1ffb UD |
767 | continue; |
768 | ||
b4a555d6 UD |
769 | if (opt_chroot && is_link) |
770 | { | |
771 | real_name = chroot_canon (opt_chroot, file_name); | |
772 | if (real_name == NULL) | |
773 | { | |
774 | if (strstr (file_name, ".so") == NULL) | |
775 | error (0, 0, _("Input file %s not found.\n"), file_name); | |
776 | continue; | |
777 | } | |
778 | } | |
779 | else | |
780 | real_name = real_file_name; | |
591e1ffb | 781 | |
b4a555d6 | 782 | if (process_file (real_name, file_name, direntry->d_name, &flag, |
a986484f | 783 | &osversion, &soname, is_link)) |
b4a555d6 UD |
784 | { |
785 | if (real_name != real_file_name) | |
786 | free (real_name); | |
787 | continue; | |
788 | } | |
789 | ||
790 | if (real_name != real_file_name) | |
791 | free (real_name); | |
591e1ffb | 792 | |
ca86a763 | 793 | /* A link may just point to itself. */ |
591e1ffb UD |
794 | if (is_link) |
795 | { | |
ca86a763 UD |
796 | /* If the path the link points to isn't its soname, we treat |
797 | it as a normal file. */ | |
798 | if (strcmp (basename (real_name), soname) != 0) | |
799 | is_link = 0; | |
800 | else | |
801 | { | |
802 | free (soname); | |
803 | soname = xstrdup (direntry->d_name); | |
804 | } | |
591e1ffb | 805 | } |
45eca4d1 | 806 | |
591e1ffb UD |
807 | if (flag == FLAG_ELF |
808 | && (entry->flag == FLAG_ELF_LIBC5 | |
809 | || entry->flag == FLAG_ELF_LIBC6)) | |
810 | flag = entry->flag; | |
811 | /* Some sanity checks to print warnings. */ | |
812 | if (opt_verbose) | |
813 | { | |
814 | if (flag == FLAG_ELF_LIBC5 && entry->flag != FLAG_ELF_LIBC5 | |
815 | && entry->flag != FLAG_ANY) | |
7b0d235c | 816 | error (0, 0, _("libc5 library %s in wrong directory"), file_name); |
591e1ffb UD |
817 | if (flag == FLAG_ELF_LIBC6 && entry->flag != FLAG_ELF_LIBC6 |
818 | && entry->flag != FLAG_ANY) | |
7b0d235c | 819 | error (0, 0, _("libc6 library %s in wrong directory"), file_name); |
591e1ffb UD |
820 | if (flag == FLAG_LIBC4 && entry->flag != FLAG_LIBC4 |
821 | && entry->flag != FLAG_ANY) | |
7b0d235c | 822 | error (0, 0, _("libc4 library %s in wrong directory"), file_name); |
591e1ffb | 823 | } |
45eca4d1 | 824 | |
591e1ffb UD |
825 | /* Add library to list. */ |
826 | for (dlib_ptr = dlibs; dlib_ptr != NULL; dlib_ptr = dlib_ptr->next) | |
827 | { | |
828 | /* Is soname already in list? */ | |
829 | if (strcmp (dlib_ptr->soname, soname) == 0) | |
830 | { | |
831 | /* Prefer a file to a link, otherwise check which one | |
832 | is newer. */ | |
833 | if ((!is_link && dlib_ptr->is_link) | |
834 | || (is_link == dlib_ptr->is_link | |
45eca4d1 | 835 | && _dl_cache_libcmp (dlib_ptr->name, direntry->d_name) < 0)) |
591e1ffb UD |
836 | { |
837 | /* It's newer - add it. */ | |
838 | /* Flag should be the same - sanity check. */ | |
839 | if (dlib_ptr->flag != flag) | |
840 | { | |
841 | if (dlib_ptr->flag == FLAG_ELF | |
842 | && (flag == FLAG_ELF_LIBC5 || flag == FLAG_ELF_LIBC6)) | |
843 | dlib_ptr->flag = flag; | |
844 | else if ((dlib_ptr->flag == FLAG_ELF_LIBC5 | |
845 | || dlib_ptr->flag == FLAG_ELF_LIBC6) | |
846 | && flag == FLAG_ELF) | |
847 | dlib_ptr->flag = flag; | |
848 | else | |
849 | error (0, 0, _("libraries %s and %s in directory %s have same soname but different type."), | |
850 | dlib_ptr->name, direntry->d_name, entry->path); | |
851 | } | |
852 | free (dlib_ptr->name); | |
b15ff9d6 | 853 | dlib_ptr->osversion = osversion; |
591e1ffb UD |
854 | dlib_ptr->name = xstrdup (direntry->d_name); |
855 | dlib_ptr->is_link = is_link; | |
856 | } | |
857 | /* Don't add this library, abort loop. */ | |
858 | /* Also free soname, since it's dynamically allocated. */ | |
859 | free (soname); | |
860 | break; | |
861 | } | |
862 | } | |
863 | /* Add the library if it's not already in. */ | |
864 | if (dlib_ptr == NULL) | |
865 | { | |
866 | dlib_ptr = (struct dlib_entry *)xmalloc (sizeof (struct dlib_entry)); | |
867 | dlib_ptr->name = xstrdup (direntry->d_name); | |
868 | dlib_ptr->flag = flag; | |
a986484f | 869 | dlib_ptr->osversion = osversion; |
591e1ffb UD |
870 | dlib_ptr->soname = soname; |
871 | dlib_ptr->is_link = is_link; | |
872 | /* Add at head of list. */ | |
873 | dlib_ptr->next = dlibs; | |
874 | dlibs = dlib_ptr; | |
875 | } | |
876 | } | |
877 | ||
878 | closedir (dir); | |
879 | ||
880 | /* Now dlibs contains a list of all libs - add those to the cache | |
881 | and created all symbolic links. */ | |
882 | for (dlib_ptr = dlibs; dlib_ptr != NULL; dlib_ptr = dlib_ptr->next) | |
883 | { | |
884 | /* Don't create links to links. */ | |
885 | if (dlib_ptr->is_link == 0) | |
b4a555d6 UD |
886 | create_links (dir_name, entry->path, dlib_ptr->name, |
887 | dlib_ptr->soname); | |
591e1ffb | 888 | if (opt_build_cache) |
a986484f UD |
889 | add_to_cache (entry->path, dlib_ptr->soname, dlib_ptr->flag, |
890 | dlib_ptr->osversion, hwcap); | |
591e1ffb UD |
891 | } |
892 | ||
893 | /* Free all resources. */ | |
45eca4d1 | 894 | while (dlibs) |
591e1ffb UD |
895 | { |
896 | dlib_ptr = dlibs; | |
897 | free (dlib_ptr->soname); | |
898 | free (dlib_ptr->name); | |
899 | dlibs = dlibs->next; | |
900 | free (dlib_ptr); | |
901 | } | |
b4a555d6 UD |
902 | |
903 | if (opt_chroot && dir_name) | |
904 | free (dir_name); | |
591e1ffb UD |
905 | } |
906 | ||
907 | /* Search through all libraries. */ | |
908 | static void | |
909 | search_dirs (void) | |
910 | { | |
911 | struct dir_entry *entry; | |
912 | ||
913 | for (entry = dir_entries; entry != NULL; entry = entry->next) | |
914 | search_dir (entry); | |
915 | ||
916 | /* Free all allocated memory. */ | |
917 | while (dir_entries) | |
918 | { | |
919 | entry = dir_entries; | |
920 | dir_entries = dir_entries->next; | |
921 | free (entry->path); | |
922 | free (entry); | |
923 | } | |
924 | } | |
925 | ||
926 | ||
927 | /* Parse configuration file. */ | |
928 | static void | |
929 | parse_conf (const char *filename) | |
930 | { | |
b4a555d6 | 931 | FILE *file = NULL; |
591e1ffb | 932 | char *line = NULL; |
b4a555d6 | 933 | const char *canon; |
591e1ffb | 934 | size_t len = 0; |
45eca4d1 | 935 | |
b4a555d6 UD |
936 | if (opt_chroot) |
937 | { | |
938 | canon = chroot_canon (opt_chroot, filename); | |
939 | if (canon) | |
940 | file = fopen (canon, "r"); | |
941 | else | |
942 | canon = filename; | |
943 | } | |
944 | else | |
945 | { | |
946 | canon = filename; | |
947 | file = fopen (filename, "r"); | |
948 | } | |
591e1ffb UD |
949 | |
950 | if (file == NULL) | |
951 | { | |
b4a555d6 UD |
952 | error (0, errno, _("Can't open configuration file %s"), canon); |
953 | if (canon != filename) | |
954 | free ((char *) canon); | |
591e1ffb UD |
955 | return; |
956 | } | |
957 | ||
c96873d7 UD |
958 | /* No threads use this stream. */ |
959 | __fsetlocking (file, FSETLOCKING_BYCALLER); | |
960 | ||
b4a555d6 UD |
961 | if (canon != filename) |
962 | free ((char *) canon); | |
963 | ||
591e1ffb UD |
964 | do |
965 | { | |
966 | ssize_t n = getline (&line, &len, file); | |
967 | if (n < 0) | |
968 | break; | |
969 | ||
970 | if (line[n - 1] == '\n') | |
971 | line[n - 1] = '\0'; | |
972 | ||
973 | /* Because the file format does not know any form of quoting we | |
974 | can search forward for the next '#' character and if found | |
975 | make it terminating the line. */ | |
976 | *strchrnul (line, '#') = '\0'; | |
977 | ||
69acbe9f UD |
978 | /* Remove leading whitespace. NUL is no whitespace character. */ |
979 | char *cp = line; | |
980 | while (isspace (*cp)) | |
981 | ++cp; | |
982 | ||
591e1ffb | 983 | /* If the line is blank it is ignored. */ |
69acbe9f | 984 | if (cp[0] == '\0') |
591e1ffb UD |
985 | continue; |
986 | ||
69acbe9f UD |
987 | add_dir (cp); |
988 | } | |
989 | while (!feof_unlocked (file)); | |
591e1ffb UD |
990 | |
991 | /* Free buffer and close file. */ | |
992 | free (line); | |
993 | fclose (file); | |
994 | } | |
995 | ||
0cfbb8c6 UD |
996 | /* Honour LD_HWCAP_MASK. */ |
997 | static void | |
998 | set_hwcap (void) | |
999 | { | |
1000 | char *mask = getenv ("LD_HWCAP_MASK"); | |
1001 | ||
1002 | if (mask) | |
1003 | hwcap_mask = strtoul (mask, NULL, 0); | |
1004 | } | |
1005 | ||
591e1ffb UD |
1006 | |
1007 | int | |
1008 | main (int argc, char **argv) | |
1009 | { | |
1010 | int remaining; | |
45eca4d1 | 1011 | |
591e1ffb UD |
1012 | /* Parse and process arguments. */ |
1013 | argp_parse (&argp, argc, argv, 0, &remaining, NULL); | |
1014 | ||
11bf8ce1 | 1015 | /* Remaining arguments are additional directories if opt_manual_link |
b85697f6 UD |
1016 | is not set. */ |
1017 | if (remaining != argc && !opt_manual_link) | |
591e1ffb UD |
1018 | { |
1019 | int i; | |
1020 | for (i = remaining; i < argc; ++i) | |
11bf8ce1 UD |
1021 | if (opt_build_cache && argv[i][0] != '/') |
1022 | error (EXIT_FAILURE, 0, | |
1023 | _("relative path `%s' used to build cache"), | |
1024 | argv[i]); | |
1025 | else | |
1026 | add_dir (argv[i]); | |
591e1ffb UD |
1027 | } |
1028 | ||
0cfbb8c6 UD |
1029 | set_hwcap (); |
1030 | ||
591e1ffb UD |
1031 | if (opt_chroot) |
1032 | { | |
f0189a54 UD |
1033 | /* Normalize the path a bit, we might need it for printing later. */ |
1034 | char *endp = strchr (opt_chroot, '\0'); | |
b4a555d6 | 1035 | while (endp > opt_chroot && endp[-1] == '/') |
f0189a54 UD |
1036 | --endp; |
1037 | *endp = '\0'; | |
b4a555d6 UD |
1038 | if (endp == opt_chroot) |
1039 | opt_chroot = NULL; | |
f0189a54 | 1040 | |
b4a555d6 UD |
1041 | if (opt_chroot) |
1042 | { | |
1043 | /* It is faster to use chroot if we can. */ | |
1044 | if (!chroot (opt_chroot)) | |
1045 | { | |
1046 | if (chdir ("/")) | |
1047 | error (EXIT_FAILURE, errno, _("Can't chdir to /")); | |
1048 | opt_chroot = NULL; | |
1049 | } | |
1050 | } | |
1051 | } | |
1052 | ||
1053 | if (cache_file == NULL) | |
1054 | { | |
1055 | cache_file = alloca (strlen (LD_SO_CACHE) + 1); | |
1056 | strcpy (cache_file, LD_SO_CACHE); | |
591e1ffb UD |
1057 | } |
1058 | ||
b4a555d6 UD |
1059 | if (config_file == NULL) |
1060 | config_file = LD_SO_CONF; | |
1061 | ||
591e1ffb UD |
1062 | if (opt_print_cache) |
1063 | { | |
b4a555d6 UD |
1064 | if (opt_chroot) |
1065 | { | |
1066 | char *p = chroot_canon (opt_chroot, cache_file); | |
1067 | if (p == NULL) | |
1068 | error (EXIT_FAILURE, errno, _("Can't open cache file %s\n"), | |
1069 | cache_file); | |
1070 | cache_file = p; | |
1071 | } | |
591e1ffb | 1072 | print_cache (cache_file); |
b4a555d6 UD |
1073 | if (opt_chroot) |
1074 | free (cache_file); | |
591e1ffb UD |
1075 | exit (0); |
1076 | } | |
1077 | ||
b4a555d6 UD |
1078 | if (opt_chroot) |
1079 | { | |
1080 | /* Canonicalize the directory name of cache_file, not cache_file, | |
1081 | because we'll rename a temporary cache file to it. */ | |
1082 | char *p = strrchr (cache_file, '/'); | |
1083 | char *canon = chroot_canon (opt_chroot, | |
1084 | p ? (*p = '\0', cache_file) : "/"); | |
1085 | ||
1086 | if (canon == NULL) | |
1087 | { | |
1088 | error (EXIT_FAILURE, errno, | |
1089 | _("Can't open cache file directory %s\n"), | |
1090 | p ? cache_file : "/"); | |
1091 | } | |
1092 | ||
1093 | if (p) | |
1094 | ++p; | |
1095 | else | |
1096 | p = cache_file; | |
1097 | ||
1098 | cache_file = alloca (strlen (canon) + strlen (p) + 2); | |
1099 | sprintf (cache_file, "%s/%s", canon, p); | |
1100 | free (canon); | |
1101 | } | |
1102 | ||
b85697f6 UD |
1103 | if (opt_manual_link) |
1104 | { | |
1105 | /* Link all given libraries manually. */ | |
1106 | int i; | |
1107 | ||
1108 | for (i = remaining; i < argc; ++i) | |
a986484f | 1109 | manual_link (argv[i]); |
b85697f6 UD |
1110 | |
1111 | exit (0); | |
1112 | } | |
45eca4d1 UD |
1113 | |
1114 | ||
591e1ffb UD |
1115 | if (opt_build_cache) |
1116 | init_cache (); | |
1117 | ||
1118 | if (!opt_only_cline) | |
1119 | { | |
334fcf2a UD |
1120 | parse_conf (config_file); |
1121 | ||
591e1ffb | 1122 | /* Always add the standard search paths. */ |
bd89c0b5 | 1123 | add_system_dir (SLIBDIR); |
8ca91b36 | 1124 | if (strcmp (SLIBDIR, LIBDIR)) |
bd89c0b5 | 1125 | add_system_dir (LIBDIR); |
591e1ffb | 1126 | } |
45eca4d1 | 1127 | |
591e1ffb UD |
1128 | search_dirs (); |
1129 | ||
1130 | if (opt_build_cache) | |
1131 | save_cache (cache_file); | |
1132 | ||
1133 | return 0; | |
1134 | } |