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64a0aa0f | 1 | /* Copyright (C) 1999-2004, 2005, 2006, 2007 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 | ||
43bc8ac6 UD |
5 | This program is free software; you can redistribute it and/or modify |
6 | it under the terms of the GNU General Public License version 2 as | |
7 | published by the Free Software Foundation. | |
591e1ffb | 8 | |
43bc8ac6 | 9 | This program is distributed in the hope that it will be useful, |
591e1ffb | 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
43bc8ac6 UD |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | GNU General Public License for more details. | |
591e1ffb | 13 | |
43bc8ac6 UD |
14 | You should have received a copy of the GNU General Public License |
15 | along with this program; if not, write to the Free Software Foundation, | |
16 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
591e1ffb | 17 | |
ee600e3f | 18 | #define PROCINFO_CLASS static |
7b0d235c | 19 | #include <alloca.h> |
591e1ffb UD |
20 | #include <argp.h> |
21 | #include <dirent.h> | |
9c95d361 | 22 | #include <elf.h> |
591e1ffb UD |
23 | #include <error.h> |
24 | #include <errno.h> | |
5a35dfca | 25 | #include <inttypes.h> |
591e1ffb | 26 | #include <libintl.h> |
f57ebe29 | 27 | #include <stdbool.h> |
591e1ffb | 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> | |
8e115d80 RM |
37 | #include <glob.h> |
38 | #include <libgen.h> | |
591e1ffb | 39 | |
8f480b4b RM |
40 | #include <ldconfig.h> |
41 | #include <dl-cache.h> | |
591e1ffb | 42 | |
8f480b4b | 43 | #include <dl-procinfo.h> |
591e1ffb | 44 | |
ab1d521d RM |
45 | #ifdef _DL_FIRST_PLATFORM |
46 | # define _DL_FIRST_EXTRA (_DL_FIRST_PLATFORM + _DL_PLATFORMS_COUNT) | |
47 | #else | |
48 | # define _DL_FIRST_EXTRA _DL_HWCAP_COUNT | |
49 | #endif | |
50 | ||
591e1ffb | 51 | #ifndef LD_SO_CONF |
8ca91b36 | 52 | # define LD_SO_CONF SYSCONFDIR "/ld.so.conf" |
591e1ffb UD |
53 | #endif |
54 | ||
55 | /* Get libc version number. */ | |
56 | #include <version.h> | |
57 | ||
58 | #define PACKAGE _libc_intl_domainname | |
59 | ||
591e1ffb UD |
60 | static const struct |
61 | { | |
62 | const char *name; | |
63 | int flag; | |
a986484f | 64 | } lib_types[] = |
591e1ffb UD |
65 | { |
66 | {"libc4", FLAG_LIBC4}, | |
67 | {"libc5", FLAG_ELF_LIBC5}, | |
68 | {"libc6", FLAG_ELF_LIBC6}, | |
69 | {"glibc2", FLAG_ELF_LIBC6} | |
45eca4d1 | 70 | }; |
591e1ffb UD |
71 | |
72 | ||
73 | /* List of directories to handle. */ | |
74 | struct dir_entry | |
75 | { | |
76 | char *path; | |
77 | int flag; | |
4ceae915 AJ |
78 | ino64_t ino; |
79 | dev_t dev; | |
591e1ffb UD |
80 | struct dir_entry *next; |
81 | }; | |
82 | ||
83 | /* The list is unsorted, contains no duplicates. Entries are added at | |
84 | the end. */ | |
85 | static struct dir_entry *dir_entries; | |
86 | ||
87 | /* Flags for different options. */ | |
88 | /* Print Cache. */ | |
c96873d7 | 89 | static int opt_print_cache; |
591e1ffb UD |
90 | |
91 | /* Be verbose. */ | |
c96873d7 | 92 | int opt_verbose; |
591e1ffb | 93 | |
45eca4d1 UD |
94 | /* Format to support. */ |
95 | /* 0: only libc5/glibc2; 1: both; 2: only glibc 2.2. */ | |
96 | int opt_format = 1; | |
97 | ||
591e1ffb UD |
98 | /* Build cache. */ |
99 | static int opt_build_cache = 1; | |
100 | ||
101 | /* Generate links. */ | |
102 | static int opt_link = 1; | |
103 | ||
104 | /* Only process directories specified on the command line. */ | |
c96873d7 | 105 | static int opt_only_cline; |
591e1ffb UD |
106 | |
107 | /* Path to root for chroot. */ | |
108 | static char *opt_chroot; | |
109 | ||
b85697f6 | 110 | /* Manually link given shared libraries. */ |
c96873d7 | 111 | static int opt_manual_link; |
b85697f6 | 112 | |
591e1ffb | 113 | /* Cache file to use. */ |
b4a555d6 | 114 | static char *cache_file; |
591e1ffb UD |
115 | |
116 | /* Configuration file. */ | |
117 | static const char *config_file; | |
118 | ||
0cfbb8c6 UD |
119 | /* Mask to use for important hardware capabilities. */ |
120 | static unsigned long int hwcap_mask = HWCAP_IMPORTANT; | |
121 | ||
ab1d521d RM |
122 | /* Configuration-defined capabilities defined in kernel vDSOs. */ |
123 | static const char *hwcap_extra[64 - _DL_FIRST_EXTRA]; | |
124 | ||
591e1ffb UD |
125 | /* Name and version of program. */ |
126 | static void print_version (FILE *stream, struct argp_state *state); | |
127 | void (*argp_program_version_hook) (FILE *, struct argp_state *) | |
128 | = print_version; | |
129 | ||
130 | /* Definitions of arguments for argp functions. */ | |
131 | static const struct argp_option options[] = | |
132 | { | |
133 | { "print-cache", 'p', NULL, 0, N_("Print cache"), 0}, | |
134 | { "verbose", 'v', NULL, 0, N_("Generate verbose messages"), 0}, | |
135 | { NULL, 'N', NULL, 0, N_("Don't build cache"), 0}, | |
136 | { NULL, 'X', NULL, 0, N_("Don't generate links"), 0}, | |
7864c09b UD |
137 | { NULL, 'r', N_("ROOT"), 0, N_("Change to and use ROOT as root directory"), 0}, |
138 | { NULL, 'C', N_("CACHE"), 0, N_("Use CACHE as cache file"), 0}, | |
139 | { NULL, 'f', N_("CONF"), 0, N_("Use CONF as configuration file"), 0}, | |
591e1ffb | 140 | { NULL, 'n', NULL, 0, N_("Only process directories specified on the command line. Don't build cache."), 0}, |
b85697f6 | 141 | { NULL, 'l', NULL, 0, N_("Manually link individual libraries."), 0}, |
7864c09b | 142 | { "format", 'c', N_("FORMAT"), 0, N_("Format to use: new, old or compat (default)"), 0}, |
591e1ffb UD |
143 | { NULL, 0, NULL, 0, NULL, 0 } |
144 | }; | |
145 | ||
11bf8ce1 UD |
146 | #define PROCINFO_CLASS static |
147 | #include <dl-procinfo.c> | |
148 | ||
591e1ffb UD |
149 | /* Short description of program. */ |
150 | static const char doc[] = N_("Configure Dynamic Linker Run Time Bindings."); | |
151 | ||
152 | /* Prototype for option handler. */ | |
153 | static error_t parse_opt (int key, char *arg, struct argp_state *state); | |
154 | ||
155 | /* Data structure to communicate with argp functions. */ | |
156 | static struct argp argp = | |
157 | { | |
158 | options, parse_opt, NULL, doc, NULL, NULL, NULL | |
159 | }; | |
160 | ||
a6c1c03a AJ |
161 | /* Check if string corresponds to an important hardware capability or |
162 | a platform. */ | |
45eca4d1 | 163 | static int |
a6c1c03a | 164 | is_hwcap_platform (const char *name) |
45eca4d1 UD |
165 | { |
166 | int hwcap_idx = _dl_string_hwcap (name); | |
8ca91b36 | 167 | |
0cfbb8c6 | 168 | if (hwcap_idx != -1 && ((1 << hwcap_idx) & hwcap_mask)) |
45eca4d1 | 169 | return 1; |
a6c1c03a AJ |
170 | |
171 | hwcap_idx = _dl_string_platform (name); | |
172 | if (hwcap_idx != -1) | |
173 | return 1; | |
174 | ||
ab1d521d RM |
175 | for (hwcap_idx = _DL_FIRST_EXTRA; hwcap_idx < 64; ++hwcap_idx) |
176 | if (hwcap_extra[hwcap_idx - _DL_FIRST_EXTRA] != NULL | |
177 | && !strcmp (name, hwcap_extra[hwcap_idx - _DL_FIRST_EXTRA])) | |
178 | return 1; | |
676fde70 | 179 | |
45eca4d1 UD |
180 | return 0; |
181 | } | |
182 | ||
a6c1c03a AJ |
183 | /* Get hwcap (including platform) encoding of path. */ |
184 | static uint64_t | |
45eca4d1 UD |
185 | path_hwcap (const char *path) |
186 | { | |
187 | char *str = xstrdup (path); | |
188 | char *ptr; | |
a6c1c03a AJ |
189 | uint64_t hwcap = 0; |
190 | uint64_t h; | |
45eca4d1 UD |
191 | |
192 | size_t len; | |
193 | ||
194 | len = strlen (str); | |
195 | if (str[len] == '/') | |
196 | str[len] = '\0'; | |
197 | ||
198 | /* Search pathname from the end and check for hwcap strings. */ | |
199 | for (;;) | |
200 | { | |
201 | ptr = strrchr (str, '/'); | |
202 | ||
203 | if (ptr == NULL) | |
204 | break; | |
205 | ||
a6c1c03a | 206 | h = _dl_string_hwcap (ptr + 1); |
45eca4d1 | 207 | |
59553897 UD |
208 | if (h == (uint64_t) -1) |
209 | { | |
210 | h = _dl_string_platform (ptr + 1); | |
211 | if (h == (uint64_t) -1) | |
676fde70 | 212 | { |
ab1d521d RM |
213 | for (h = _DL_FIRST_EXTRA; h < 64; ++h) |
214 | if (hwcap_extra[h - _DL_FIRST_EXTRA] != NULL | |
215 | && !strcmp (ptr + 1, hwcap_extra[h - _DL_FIRST_EXTRA])) | |
216 | break; | |
217 | if (h == 64) | |
676fde70 UD |
218 | break; |
219 | } | |
59553897 | 220 | } |
a6c1c03a | 221 | hwcap += 1ULL << h; |
591e1ffb | 222 | |
45eca4d1 UD |
223 | /* Search the next part of the path. */ |
224 | *ptr = '\0'; | |
225 | } | |
226 | ||
227 | free (str); | |
228 | return hwcap; | |
229 | } | |
591e1ffb UD |
230 | |
231 | /* Handle program arguments. */ | |
232 | static error_t | |
233 | parse_opt (int key, char *arg, struct argp_state *state) | |
234 | { | |
235 | switch (key) | |
236 | { | |
237 | case 'C': | |
238 | cache_file = arg; | |
239 | break; | |
240 | case 'f': | |
241 | config_file = arg; | |
242 | break; | |
b85697f6 UD |
243 | case 'l': |
244 | opt_manual_link = 1; | |
245 | break; | |
591e1ffb UD |
246 | case 'N': |
247 | opt_build_cache = 0; | |
248 | break; | |
249 | case 'n': | |
250 | opt_build_cache = 0; | |
251 | opt_only_cline = 1; | |
252 | break; | |
253 | case 'p': | |
254 | opt_print_cache = 1; | |
255 | break; | |
256 | case 'r': | |
257 | opt_chroot = arg; | |
258 | break; | |
259 | case 'v': | |
260 | opt_verbose = 1; | |
261 | break; | |
262 | case 'X': | |
263 | opt_link = 0; | |
264 | break; | |
45eca4d1 UD |
265 | case 'c': |
266 | if (strcmp (arg, "old") == 0) | |
267 | opt_format = 0; | |
268 | else if (strcmp (arg, "compat") == 0) | |
269 | opt_format = 1; | |
270 | else if (strcmp (arg, "new") == 0) | |
271 | opt_format = 2; | |
272 | break; | |
591e1ffb UD |
273 | default: |
274 | return ARGP_ERR_UNKNOWN; | |
275 | } | |
276 | ||
277 | return 0; | |
278 | } | |
279 | ||
280 | /* Print the version information. */ | |
281 | static void | |
282 | print_version (FILE *stream, struct argp_state *state) | |
283 | { | |
284 | fprintf (stream, "ldconfig (GNU %s) %s\n", PACKAGE, VERSION); | |
285 | fprintf (stream, gettext ("\ | |
286 | Copyright (C) %s Free Software Foundation, Inc.\n\ | |
287 | This is free software; see the source for copying conditions. There is NO\n\ | |
288 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ | |
32c075e1 | 289 | "), "2006"); |
591e1ffb UD |
290 | fprintf (stream, gettext ("Written by %s.\n"), |
291 | "Andreas Jaeger"); | |
292 | } | |
293 | ||
a8fd59b0 AJ |
294 | /* Add a single directory entry. */ |
295 | static void | |
296 | add_single_dir (struct dir_entry *entry, int verbose) | |
297 | { | |
298 | struct dir_entry *ptr, *prev; | |
299 | ||
300 | ptr = dir_entries; | |
301 | prev = ptr; | |
302 | while (ptr != NULL) | |
303 | { | |
304 | /* Check for duplicates. */ | |
4ceae915 | 305 | if (ptr->ino == entry->ino && ptr->dev == entry->dev) |
a8fd59b0 AJ |
306 | { |
307 | if (opt_verbose && verbose) | |
308 | error (0, 0, _("Path `%s' given more than once"), entry->path); | |
309 | /* Use the newer information. */ | |
310 | ptr->flag = entry->flag; | |
4ceae915 | 311 | free (entry->path); |
a8fd59b0 AJ |
312 | free (entry); |
313 | break; | |
314 | } | |
315 | prev = ptr; | |
316 | ptr = ptr->next; | |
317 | } | |
318 | /* Is this the first entry? */ | |
319 | if (ptr == NULL && dir_entries == NULL) | |
320 | dir_entries = entry; | |
321 | else if (ptr == NULL) | |
322 | prev->next = entry; | |
323 | } | |
324 | ||
591e1ffb UD |
325 | /* Add one directory to the list of directories to process. */ |
326 | static void | |
327 | add_dir (const char *line) | |
328 | { | |
591e1ffb | 329 | unsigned int i; |
539842a4 | 330 | struct dir_entry *entry = xmalloc (sizeof (struct dir_entry)); |
591e1ffb | 331 | entry->next = NULL; |
45eca4d1 | 332 | |
591e1ffb UD |
333 | /* Search for an '=' sign. */ |
334 | entry->path = xstrdup (line); | |
539842a4 | 335 | char *equal_sign = strchr (entry->path, '='); |
591e1ffb UD |
336 | if (equal_sign) |
337 | { | |
338 | *equal_sign = '\0'; | |
339 | ++equal_sign; | |
340 | entry->flag = FLAG_ANY; | |
a986484f | 341 | for (i = 0; i < sizeof (lib_types) / sizeof (lib_types[0]); ++i) |
591e1ffb UD |
342 | if (strcmp (equal_sign, lib_types[i].name) == 0) |
343 | { | |
344 | entry->flag = lib_types[i].flag; | |
345 | break; | |
346 | } | |
347 | if (entry->flag == FLAG_ANY) | |
348 | error (0, 0, _("%s is not a known library type"), equal_sign); | |
349 | } | |
350 | else | |
351 | { | |
352 | entry->flag = FLAG_ANY; | |
353 | } | |
354 | ||
69acbe9f UD |
355 | /* Canonify path: for now only remove leading and trailing |
356 | whitespace and the trailing slashes slashes. */ | |
591e1ffb | 357 | i = strlen (entry->path) - 1; |
69acbe9f UD |
358 | |
359 | while (isspace (entry->path[i]) && i > 0) | |
360 | entry->path[i--] = '\0'; | |
361 | ||
591e1ffb | 362 | while (entry->path[i] == '/' && i > 0) |
69acbe9f | 363 | entry->path[i--] = '\0'; |
45eca4d1 | 364 | |
539842a4 UD |
365 | char *path = entry->path; |
366 | if (opt_chroot) | |
367 | path = chroot_canon (opt_chroot, path); | |
368 | ||
369 | struct stat64 stat_buf; | |
370 | if (path == NULL || stat64 (path, &stat_buf)) | |
4ceae915 | 371 | { |
8645ad47 AJ |
372 | if (opt_verbose) |
373 | error (0, errno, _("Can't stat %s"), entry->path); | |
4ceae915 AJ |
374 | free (entry->path); |
375 | free (entry); | |
4ceae915 | 376 | } |
539842a4 UD |
377 | else |
378 | { | |
379 | entry->ino = stat_buf.st_ino; | |
380 | entry->dev = stat_buf.st_dev; | |
4ceae915 | 381 | |
539842a4 UD |
382 | add_single_dir (entry, 1); |
383 | } | |
4ceae915 | 384 | |
539842a4 UD |
385 | if (opt_chroot) |
386 | free (path); | |
591e1ffb UD |
387 | } |
388 | ||
389 | ||
b4a555d6 UD |
390 | static int |
391 | chroot_stat (const char *real_path, const char *path, struct stat64 *st) | |
392 | { | |
393 | int ret; | |
394 | char *canon_path; | |
395 | ||
396 | if (!opt_chroot) | |
397 | return stat64 (real_path, st); | |
398 | ||
399 | ret = lstat64 (real_path, st); | |
400 | if (ret || !S_ISLNK (st->st_mode)) | |
401 | return ret; | |
402 | ||
403 | canon_path = chroot_canon (opt_chroot, path); | |
404 | if (canon_path == NULL) | |
405 | return -1; | |
406 | ||
407 | ret = stat64 (canon_path, st); | |
408 | free (canon_path); | |
409 | return ret; | |
410 | } | |
411 | ||
591e1ffb UD |
412 | /* Create a symbolic link from soname to libname in directory path. */ |
413 | static void | |
b4a555d6 UD |
414 | create_links (const char *real_path, const char *path, const char *libname, |
415 | const char *soname) | |
591e1ffb | 416 | { |
7b0d235c | 417 | char *full_libname, *full_soname; |
b4a555d6 UD |
418 | char *real_full_libname, *real_full_soname; |
419 | struct stat64 stat_lib, stat_so, lstat_so; | |
591e1ffb UD |
420 | int do_link = 1; |
421 | int do_remove = 1; | |
422 | /* XXX: The logics in this function should be simplified. */ | |
45eca4d1 | 423 | |
591e1ffb | 424 | /* Get complete path. */ |
7b0d235c | 425 | full_libname = alloca (strlen (path) + strlen (libname) + 2); |
7c545dbe | 426 | full_soname = alloca (strlen (path) + strlen (soname) + 2); |
7b0d235c AJ |
427 | sprintf (full_libname, "%s/%s", path, libname); |
428 | sprintf (full_soname, "%s/%s", path, soname); | |
b4a555d6 UD |
429 | if (opt_chroot) |
430 | { | |
431 | real_full_libname = alloca (strlen (real_path) + strlen (libname) + 2); | |
7c545dbe | 432 | real_full_soname = alloca (strlen (real_path) + strlen (soname) + 2); |
b4a555d6 UD |
433 | sprintf (real_full_libname, "%s/%s", real_path, libname); |
434 | sprintf (real_full_soname, "%s/%s", real_path, soname); | |
435 | } | |
436 | else | |
437 | { | |
438 | real_full_libname = full_libname; | |
439 | real_full_soname = full_soname; | |
440 | } | |
591e1ffb UD |
441 | |
442 | /* Does soname already exist and point to the right library? */ | |
b4a555d6 | 443 | if (chroot_stat (real_full_soname, full_soname, &stat_so) == 0) |
591e1ffb | 444 | { |
b4a555d6 | 445 | if (chroot_stat (real_full_libname, full_libname, &stat_lib)) |
591e1ffb UD |
446 | { |
447 | error (0, 0, _("Can't stat %s\n"), full_libname); | |
448 | return; | |
449 | } | |
450 | if (stat_lib.st_dev == stat_so.st_dev | |
451 | && stat_lib.st_ino == stat_so.st_ino) | |
452 | /* Link is already correct. */ | |
453 | do_link = 0; | |
b4a555d6 | 454 | else if (lstat64 (full_soname, &lstat_so) == 0 |
591e1ffb UD |
455 | && !S_ISLNK (lstat_so.st_mode)) |
456 | { | |
457 | error (0, 0, _("%s is not a symbolic link\n"), full_soname); | |
458 | do_link = 0; | |
459 | do_remove = 0; | |
460 | } | |
461 | } | |
b4a555d6 | 462 | else if (lstat64 (real_full_soname, &lstat_so) != 0 |
591e1ffb UD |
463 | || !S_ISLNK (lstat_so.st_mode)) |
464 | /* Unless it is a stale symlink, there is no need to remove. */ | |
465 | do_remove = 0; | |
466 | ||
467 | if (opt_verbose) | |
468 | printf ("\t%s -> %s", soname, libname); | |
469 | ||
470 | if (do_link && opt_link) | |
471 | { | |
472 | /* Remove old link. */ | |
473 | if (do_remove) | |
b4a555d6 | 474 | if (unlink (real_full_soname)) |
591e1ffb UD |
475 | { |
476 | error (0, 0, _("Can't unlink %s"), full_soname); | |
477 | do_link = 0; | |
478 | } | |
479 | /* Create symbolic link. */ | |
b4a555d6 | 480 | if (do_link && symlink (libname, real_full_soname)) |
591e1ffb UD |
481 | { |
482 | error (0, 0, _("Can't link %s to %s"), full_soname, libname); | |
483 | do_link = 0; | |
484 | } | |
485 | if (opt_verbose) | |
486 | { | |
487 | if (do_link) | |
488 | fputs (_(" (changed)\n"), stdout); | |
489 | else | |
490 | fputs (_(" (SKIPPED)\n"), stdout); | |
491 | } | |
492 | } | |
493 | else if (opt_verbose) | |
494 | fputs ("\n", stdout); | |
495 | } | |
496 | ||
b85697f6 UD |
497 | /* Manually link the given library. */ |
498 | static void | |
499 | manual_link (char *library) | |
500 | { | |
501 | char *path; | |
b4a555d6 UD |
502 | char *real_path; |
503 | char *real_library; | |
b85697f6 UD |
504 | char *libname; |
505 | char *soname; | |
b4a555d6 | 506 | struct stat64 stat_buf; |
b85697f6 | 507 | int flag; |
a986484f | 508 | unsigned int osversion; |
b85697f6 UD |
509 | |
510 | /* Prepare arguments for create_links call. Split library name in | |
511 | directory and filename first. Since path is allocated, we've got | |
512 | to be careful to free at the end. */ | |
513 | path = xstrdup (library); | |
514 | libname = strrchr (path, '/'); | |
515 | ||
516 | if (libname) | |
517 | { | |
518 | /* Successfully split names. Check if path is just "/" to avoid | |
519 | an empty path. */ | |
520 | if (libname == path) | |
521 | { | |
522 | libname = library + 1; | |
523 | path = xrealloc (path, 2); | |
524 | strcpy (path, "/"); | |
525 | } | |
526 | else | |
527 | { | |
528 | *libname = '\0'; | |
529 | ++libname; | |
530 | } | |
531 | } | |
532 | else | |
533 | { | |
534 | /* There's no path, construct one. */ | |
535 | libname = library; | |
536 | path = xrealloc (path, 2); | |
537 | strcpy (path, "."); | |
538 | } | |
539 | ||
b4a555d6 UD |
540 | if (opt_chroot) |
541 | { | |
542 | real_path = chroot_canon (opt_chroot, path); | |
543 | if (real_path == NULL) | |
544 | { | |
545 | error (0, errno, _("Can't find %s"), path); | |
546 | free (path); | |
547 | return; | |
548 | } | |
549 | real_library = alloca (strlen (real_path) + strlen (libname) + 2); | |
550 | sprintf (real_library, "%s/%s", real_path, libname); | |
551 | } | |
552 | else | |
553 | { | |
554 | real_path = path; | |
555 | real_library = library; | |
556 | } | |
557 | ||
b85697f6 | 558 | /* Do some sanity checks first. */ |
b4a555d6 | 559 | if (lstat64 (real_library, &stat_buf)) |
b85697f6 | 560 | { |
32c075e1 | 561 | error (0, errno, _("Can't lstat %s"), library); |
b85697f6 UD |
562 | free (path); |
563 | return; | |
564 | } | |
565 | /* We don't want links here! */ | |
566 | else if (!S_ISREG (stat_buf.st_mode)) | |
567 | { | |
568 | error (0, 0, _("Ignored file %s since it is not a regular file."), | |
569 | library); | |
570 | free (path); | |
571 | return; | |
572 | } | |
a986484f UD |
573 | if (process_file (real_library, library, libname, &flag, &osversion, |
574 | &soname, 0)) | |
b85697f6 UD |
575 | { |
576 | error (0, 0, _("No link created since soname could not be found for %s"), | |
577 | library); | |
578 | free (path); | |
579 | return; | |
580 | } | |
b4a555d6 | 581 | create_links (real_path, path, libname, soname); |
b85697f6 UD |
582 | free (soname); |
583 | free (path); | |
584 | } | |
585 | ||
586 | ||
591e1ffb UD |
587 | /* Read a whole directory and search for libraries. |
588 | The purpose is two-fold: | |
589 | - search for libraries which will be added to the cache | |
590 | - create symbolic links to the soname for each library | |
591 | ||
592 | This has to be done separatly for each directory. | |
45eca4d1 | 593 | |
591e1ffb UD |
594 | To keep track of which libraries to add to the cache and which |
595 | links to create, we save a list of all libraries. | |
596 | ||
597 | The algorithm is basically: | |
598 | for all libraries in the directory do | |
599 | get soname of library | |
600 | if soname is already in list | |
601 | if new library is newer, replace entry | |
602 | otherwise ignore this library | |
603 | otherwise add library to list | |
45eca4d1 | 604 | |
591e1ffb UD |
605 | For example, if the two libraries libxy.so.1.1 and libxy.so.1.2 |
606 | exist and both have the same soname, e.g. libxy.so, a symbolic link | |
607 | is created from libxy.so.1.2 (the newer one) to libxy.so. | |
608 | libxy.so.1.2 and libxy.so are added to the cache - but not | |
609 | libxy.so.1.1. */ | |
610 | ||
611 | /* Information for one library. */ | |
45eca4d1 | 612 | struct dlib_entry |
591e1ffb UD |
613 | { |
614 | char *name; | |
615 | char *soname; | |
616 | int flag; | |
617 | int is_link; | |
a986484f | 618 | unsigned int osversion; |
591e1ffb UD |
619 | struct dlib_entry *next; |
620 | }; | |
621 | ||
622 | ||
623 | static void | |
624 | search_dir (const struct dir_entry *entry) | |
625 | { | |
626 | DIR *dir; | |
2b510e91 | 627 | struct dirent64 *direntry; |
b4a555d6 UD |
628 | char *file_name, *dir_name, *real_file_name, *real_name; |
629 | int file_name_len, real_file_name_len, len; | |
591e1ffb UD |
630 | char *soname; |
631 | struct dlib_entry *dlibs; | |
632 | struct dlib_entry *dlib_ptr; | |
4ceae915 AJ |
633 | struct stat64 lstat_buf, stat_buf; |
634 | int is_link, is_dir; | |
a6c1c03a | 635 | uint64_t hwcap = path_hwcap (entry->path); |
a986484f | 636 | unsigned int osversion; |
45eca4d1 | 637 | |
7b0d235c AJ |
638 | file_name_len = PATH_MAX; |
639 | file_name = alloca (file_name_len); | |
f0189a54 | 640 | |
591e1ffb UD |
641 | dlibs = NULL; |
642 | ||
643 | if (opt_verbose) | |
45eca4d1 UD |
644 | { |
645 | if (hwcap != 0) | |
ab1d521d | 646 | printf ("%s: (hwcap: %#.16" PRIx64 ")\n", entry->path, hwcap); |
45eca4d1 UD |
647 | else |
648 | printf ("%s:\n", entry->path); | |
649 | } | |
650 | ||
b4a555d6 UD |
651 | if (opt_chroot) |
652 | { | |
653 | dir_name = chroot_canon (opt_chroot, entry->path); | |
654 | real_file_name_len = PATH_MAX; | |
655 | real_file_name = alloca (real_file_name_len); | |
656 | } | |
657 | else | |
658 | { | |
659 | dir_name = entry->path; | |
660 | real_file_name_len = 0; | |
661 | real_file_name = file_name; | |
662 | } | |
663 | ||
664 | if (dir_name == NULL || (dir = opendir (dir_name)) == NULL) | |
591e1ffb UD |
665 | { |
666 | if (opt_verbose) | |
667 | error (0, errno, _("Can't open directory %s"), entry->path); | |
b4a555d6 UD |
668 | if (opt_chroot && dir_name) |
669 | free (dir_name); | |
591e1ffb UD |
670 | return; |
671 | } | |
45eca4d1 | 672 | |
2b510e91 | 673 | while ((direntry = readdir64 (dir)) != NULL) |
591e1ffb UD |
674 | { |
675 | int flag; | |
676 | #ifdef _DIRENT_HAVE_D_TYPE | |
677 | /* We only look at links and regular files. */ | |
678 | if (direntry->d_type != DT_UNKNOWN | |
679 | && direntry->d_type != DT_LNK | |
45eca4d1 UD |
680 | && direntry->d_type != DT_REG |
681 | && direntry->d_type != DT_DIR) | |
591e1ffb UD |
682 | continue; |
683 | #endif /* _DIRENT_HAVE_D_TYPE */ | |
45eca4d1 UD |
684 | /* Does this file look like a shared library or is it a hwcap |
685 | subdirectory? The dynamic linker is also considered as | |
686 | shared library. */ | |
687 | if (((strncmp (direntry->d_name, "lib", 3) != 0 | |
688 | && strncmp (direntry->d_name, "ld-", 3) != 0) | |
689 | || strstr (direntry->d_name, ".so") == NULL) | |
95ce33a5 UD |
690 | && ( |
691 | #ifdef _DIRENT_HAVE_D_TYPE | |
692 | direntry->d_type == DT_REG || | |
693 | #endif | |
694 | !is_hwcap_platform (direntry->d_name))) | |
591e1ffb | 695 | continue; |
3858bf28 RM |
696 | len = strlen (direntry->d_name); |
697 | /* Skip temporary files created by the prelink program. Files with | |
698 | names like these are never really DSOs we want to look at. */ | |
699 | if (len >= sizeof (".#prelink#") - 1) | |
700 | { | |
701 | if (strcmp (direntry->d_name + len - sizeof (".#prelink#") + 1, | |
702 | ".#prelink#") == 0) | |
703 | continue; | |
704 | if (len >= sizeof (".#prelink#.XXXXXX") - 1 | |
705 | && memcmp (direntry->d_name + len - sizeof (".#prelink#.XXXXXX") | |
706 | + 1, ".#prelink#.", sizeof (".#prelink#.") - 1) == 0) | |
707 | continue; | |
708 | } | |
32c075e1 | 709 | len += strlen (entry->path) + 2; |
7b0d235c | 710 | if (len > file_name_len) |
591e1ffb | 711 | { |
32c075e1 | 712 | file_name_len = len; |
7b0d235c | 713 | file_name = alloca (file_name_len); |
b4a555d6 UD |
714 | if (!opt_chroot) |
715 | real_file_name = file_name; | |
716 | } | |
717 | sprintf (file_name, "%s/%s", entry->path, direntry->d_name); | |
718 | if (opt_chroot) | |
719 | { | |
32c075e1 | 720 | len = strlen (dir_name) + strlen (direntry->d_name) + 2; |
b4a555d6 UD |
721 | if (len > real_file_name_len) |
722 | { | |
32c075e1 | 723 | real_file_name_len = len; |
b4a555d6 UD |
724 | real_file_name = alloca (real_file_name_len); |
725 | } | |
726 | sprintf (real_file_name, "%s/%s", dir_name, direntry->d_name); | |
591e1ffb | 727 | } |
7c3002f0 UD |
728 | #ifdef _DIRENT_HAVE_D_TYPE |
729 | if (direntry->d_type != DT_UNKNOWN) | |
4ceae915 | 730 | lstat_buf.st_mode = DTTOIF (direntry->d_type); |
7c3002f0 UD |
731 | else |
732 | #endif | |
95ce33a5 | 733 | if (__builtin_expect (lstat64 (real_file_name, &lstat_buf), 0)) |
7c3002f0 | 734 | { |
95ce33a5 | 735 | error (0, errno, _("Cannot lstat %s"), file_name); |
7c3002f0 UD |
736 | continue; |
737 | } | |
738 | ||
4ceae915 AJ |
739 | is_link = S_ISLNK (lstat_buf.st_mode); |
740 | if (is_link) | |
741 | { | |
742 | /* In case of symlink, we check if the symlink refers to | |
743 | a directory. */ | |
95ce33a5 | 744 | if (__builtin_expect (stat64 (real_file_name, &stat_buf), 0)) |
4ceae915 | 745 | { |
8645ad47 | 746 | if (opt_verbose) |
95ce33a5 | 747 | error (0, errno, _("Cannot stat %s"), file_name); |
647eb037 UD |
748 | |
749 | /* Remove stale symlinks. */ | |
750 | if (strstr (direntry->d_name, ".so.")) | |
751 | unlink (real_file_name); | |
4ceae915 AJ |
752 | continue; |
753 | } | |
754 | is_dir = S_ISDIR (stat_buf.st_mode); | |
755 | } | |
756 | else | |
757 | is_dir = S_ISDIR (lstat_buf.st_mode); | |
758 | ||
759 | if (is_dir && is_hwcap_platform (direntry->d_name)) | |
45eca4d1 | 760 | { |
a8fd59b0 AJ |
761 | /* Handle subdirectory later. */ |
762 | struct dir_entry *new_entry; | |
763 | ||
764 | new_entry = xmalloc (sizeof (struct dir_entry)); | |
7b0d235c | 765 | new_entry->path = xstrdup (file_name); |
a8fd59b0 AJ |
766 | new_entry->flag = entry->flag; |
767 | new_entry->next = NULL; | |
4ceae915 AJ |
768 | if (is_link) |
769 | { | |
770 | new_entry->ino = stat_buf.st_ino; | |
771 | new_entry->dev = stat_buf.st_dev; | |
772 | } | |
773 | else | |
774 | { | |
95ce33a5 UD |
775 | #ifdef _DIRENT_HAVE_D_TYPE |
776 | /* We have filled in lstat only #ifndef | |
777 | _DIRENT_HAVE_D_TYPE. Fill it in if needed. */ | |
778 | if (direntry->d_type != DT_UNKNOWN | |
779 | && __builtin_expect (lstat64 (real_file_name, &lstat_buf), | |
780 | 0)) | |
781 | { | |
782 | error (0, errno, _("Cannot lstat %s"), file_name); | |
783 | free (new_entry->path); | |
784 | free (new_entry); | |
785 | continue; | |
786 | } | |
787 | #endif | |
788 | ||
4ceae915 AJ |
789 | new_entry->ino = lstat_buf.st_ino; |
790 | new_entry->dev = lstat_buf.st_dev; | |
791 | } | |
a8fd59b0 | 792 | add_single_dir (new_entry, 0); |
45eca4d1 UD |
793 | continue; |
794 | } | |
0f843f89 | 795 | else if (!S_ISREG (lstat_buf.st_mode) && !is_link) |
591e1ffb UD |
796 | continue; |
797 | ||
b4a555d6 UD |
798 | if (opt_chroot && is_link) |
799 | { | |
800 | real_name = chroot_canon (opt_chroot, file_name); | |
801 | if (real_name == NULL) | |
802 | { | |
803 | if (strstr (file_name, ".so") == NULL) | |
804 | error (0, 0, _("Input file %s not found.\n"), file_name); | |
805 | continue; | |
806 | } | |
807 | } | |
808 | else | |
809 | real_name = real_file_name; | |
591e1ffb | 810 | |
b4a555d6 | 811 | if (process_file (real_name, file_name, direntry->d_name, &flag, |
a986484f | 812 | &osversion, &soname, is_link)) |
b4a555d6 UD |
813 | { |
814 | if (real_name != real_file_name) | |
815 | free (real_name); | |
816 | continue; | |
817 | } | |
818 | ||
82d8607d UD |
819 | |
820 | /* A link may just point to itself. */ | |
591e1ffb UD |
821 | if (is_link) |
822 | { | |
82d8607d UD |
823 | /* If the path the link points to isn't its soname and it is not |
824 | .so symlink for ld(1) only, we treat it as a normal file. */ | |
2fe98a4a | 825 | const char *real_base_name = basename (real_file_name); |
82d8607d UD |
826 | |
827 | if (strcmp (real_base_name, soname) != 0) | |
828 | { | |
829 | len = strlen (real_base_name); | |
830 | if (len < strlen (".so") | |
831 | || strcmp (real_base_name + len - strlen (".so"), ".so") != 0 | |
832 | || strncmp (real_base_name, soname, len) != 0) | |
833 | is_link = 0; | |
834 | } | |
835 | } | |
45eca4d1 | 836 | |
395412a0 UD |
837 | if (real_name != real_file_name) |
838 | free (real_name); | |
839 | ||
82d8607d UD |
840 | if (is_link) |
841 | { | |
842 | free (soname); | |
843 | soname = xstrdup (direntry->d_name); | |
844 | } | |
845 | ||
591e1ffb UD |
846 | if (flag == FLAG_ELF |
847 | && (entry->flag == FLAG_ELF_LIBC5 | |
848 | || entry->flag == FLAG_ELF_LIBC6)) | |
849 | flag = entry->flag; | |
850 | /* Some sanity checks to print warnings. */ | |
851 | if (opt_verbose) | |
852 | { | |
853 | if (flag == FLAG_ELF_LIBC5 && entry->flag != FLAG_ELF_LIBC5 | |
854 | && entry->flag != FLAG_ANY) | |
7b0d235c | 855 | error (0, 0, _("libc5 library %s in wrong directory"), file_name); |
591e1ffb UD |
856 | if (flag == FLAG_ELF_LIBC6 && entry->flag != FLAG_ELF_LIBC6 |
857 | && entry->flag != FLAG_ANY) | |
7b0d235c | 858 | error (0, 0, _("libc6 library %s in wrong directory"), file_name); |
591e1ffb UD |
859 | if (flag == FLAG_LIBC4 && entry->flag != FLAG_LIBC4 |
860 | && entry->flag != FLAG_ANY) | |
7b0d235c | 861 | error (0, 0, _("libc4 library %s in wrong directory"), file_name); |
591e1ffb | 862 | } |
45eca4d1 | 863 | |
591e1ffb UD |
864 | /* Add library to list. */ |
865 | for (dlib_ptr = dlibs; dlib_ptr != NULL; dlib_ptr = dlib_ptr->next) | |
866 | { | |
867 | /* Is soname already in list? */ | |
868 | if (strcmp (dlib_ptr->soname, soname) == 0) | |
869 | { | |
870 | /* Prefer a file to a link, otherwise check which one | |
871 | is newer. */ | |
872 | if ((!is_link && dlib_ptr->is_link) | |
873 | || (is_link == dlib_ptr->is_link | |
45eca4d1 | 874 | && _dl_cache_libcmp (dlib_ptr->name, direntry->d_name) < 0)) |
591e1ffb UD |
875 | { |
876 | /* It's newer - add it. */ | |
877 | /* Flag should be the same - sanity check. */ | |
878 | if (dlib_ptr->flag != flag) | |
879 | { | |
880 | if (dlib_ptr->flag == FLAG_ELF | |
881 | && (flag == FLAG_ELF_LIBC5 || flag == FLAG_ELF_LIBC6)) | |
882 | dlib_ptr->flag = flag; | |
883 | else if ((dlib_ptr->flag == FLAG_ELF_LIBC5 | |
884 | || dlib_ptr->flag == FLAG_ELF_LIBC6) | |
885 | && flag == FLAG_ELF) | |
886 | dlib_ptr->flag = flag; | |
887 | else | |
888 | error (0, 0, _("libraries %s and %s in directory %s have same soname but different type."), | |
889 | dlib_ptr->name, direntry->d_name, entry->path); | |
890 | } | |
891 | free (dlib_ptr->name); | |
b15ff9d6 | 892 | dlib_ptr->osversion = osversion; |
591e1ffb UD |
893 | dlib_ptr->name = xstrdup (direntry->d_name); |
894 | dlib_ptr->is_link = is_link; | |
895 | } | |
896 | /* Don't add this library, abort loop. */ | |
897 | /* Also free soname, since it's dynamically allocated. */ | |
898 | free (soname); | |
899 | break; | |
900 | } | |
901 | } | |
902 | /* Add the library if it's not already in. */ | |
903 | if (dlib_ptr == NULL) | |
904 | { | |
905 | dlib_ptr = (struct dlib_entry *)xmalloc (sizeof (struct dlib_entry)); | |
906 | dlib_ptr->name = xstrdup (direntry->d_name); | |
907 | dlib_ptr->flag = flag; | |
a986484f | 908 | dlib_ptr->osversion = osversion; |
591e1ffb UD |
909 | dlib_ptr->soname = soname; |
910 | dlib_ptr->is_link = is_link; | |
911 | /* Add at head of list. */ | |
912 | dlib_ptr->next = dlibs; | |
913 | dlibs = dlib_ptr; | |
914 | } | |
915 | } | |
916 | ||
917 | closedir (dir); | |
918 | ||
919 | /* Now dlibs contains a list of all libs - add those to the cache | |
920 | and created all symbolic links. */ | |
921 | for (dlib_ptr = dlibs; dlib_ptr != NULL; dlib_ptr = dlib_ptr->next) | |
922 | { | |
923 | /* Don't create links to links. */ | |
924 | if (dlib_ptr->is_link == 0) | |
b4a555d6 UD |
925 | create_links (dir_name, entry->path, dlib_ptr->name, |
926 | dlib_ptr->soname); | |
591e1ffb | 927 | if (opt_build_cache) |
a986484f UD |
928 | add_to_cache (entry->path, dlib_ptr->soname, dlib_ptr->flag, |
929 | dlib_ptr->osversion, hwcap); | |
591e1ffb UD |
930 | } |
931 | ||
932 | /* Free all resources. */ | |
45eca4d1 | 933 | while (dlibs) |
591e1ffb UD |
934 | { |
935 | dlib_ptr = dlibs; | |
936 | free (dlib_ptr->soname); | |
937 | free (dlib_ptr->name); | |
938 | dlibs = dlibs->next; | |
939 | free (dlib_ptr); | |
940 | } | |
b4a555d6 UD |
941 | |
942 | if (opt_chroot && dir_name) | |
943 | free (dir_name); | |
591e1ffb UD |
944 | } |
945 | ||
946 | /* Search through all libraries. */ | |
947 | static void | |
948 | search_dirs (void) | |
949 | { | |
950 | struct dir_entry *entry; | |
951 | ||
952 | for (entry = dir_entries; entry != NULL; entry = entry->next) | |
953 | search_dir (entry); | |
954 | ||
955 | /* Free all allocated memory. */ | |
956 | while (dir_entries) | |
957 | { | |
958 | entry = dir_entries; | |
959 | dir_entries = dir_entries->next; | |
960 | free (entry->path); | |
961 | free (entry); | |
962 | } | |
963 | } | |
964 | ||
965 | ||
8e115d80 | 966 | static void parse_conf_include (const char *config_file, unsigned int lineno, |
a334319f | 967 | bool do_chroot, const char *pattern); |
8e115d80 | 968 | |
591e1ffb UD |
969 | /* Parse configuration file. */ |
970 | static void | |
a334319f | 971 | parse_conf (const char *filename, bool do_chroot) |
591e1ffb | 972 | { |
b4a555d6 | 973 | FILE *file = NULL; |
591e1ffb | 974 | char *line = NULL; |
b4a555d6 | 975 | const char *canon; |
591e1ffb | 976 | size_t len = 0; |
8e115d80 | 977 | unsigned int lineno; |
45eca4d1 | 978 | |
8e115d80 | 979 | if (do_chroot && opt_chroot) |
b4a555d6 UD |
980 | { |
981 | canon = chroot_canon (opt_chroot, filename); | |
982 | if (canon) | |
983 | file = fopen (canon, "r"); | |
984 | else | |
985 | canon = filename; | |
986 | } | |
987 | else | |
988 | { | |
989 | canon = filename; | |
990 | file = fopen (filename, "r"); | |
991 | } | |
591e1ffb UD |
992 | |
993 | if (file == NULL) | |
994 | { | |
b4a555d6 UD |
995 | error (0, errno, _("Can't open configuration file %s"), canon); |
996 | if (canon != filename) | |
997 | free ((char *) canon); | |
591e1ffb UD |
998 | return; |
999 | } | |
1000 | ||
c96873d7 UD |
1001 | /* No threads use this stream. */ |
1002 | __fsetlocking (file, FSETLOCKING_BYCALLER); | |
1003 | ||
b4a555d6 UD |
1004 | if (canon != filename) |
1005 | free ((char *) canon); | |
1006 | ||
8e115d80 | 1007 | lineno = 0; |
591e1ffb UD |
1008 | do |
1009 | { | |
1010 | ssize_t n = getline (&line, &len, file); | |
1011 | if (n < 0) | |
1012 | break; | |
1013 | ||
8e115d80 | 1014 | ++lineno; |
591e1ffb UD |
1015 | if (line[n - 1] == '\n') |
1016 | line[n - 1] = '\0'; | |
1017 | ||
1018 | /* Because the file format does not know any form of quoting we | |
1019 | can search forward for the next '#' character and if found | |
1020 | make it terminating the line. */ | |
1021 | *strchrnul (line, '#') = '\0'; | |
1022 | ||
69acbe9f UD |
1023 | /* Remove leading whitespace. NUL is no whitespace character. */ |
1024 | char *cp = line; | |
1025 | while (isspace (*cp)) | |
1026 | ++cp; | |
1027 | ||
591e1ffb | 1028 | /* If the line is blank it is ignored. */ |
69acbe9f | 1029 | if (cp[0] == '\0') |
591e1ffb UD |
1030 | continue; |
1031 | ||
8e115d80 RM |
1032 | if (!strncmp (cp, "include", 7) && isblank (cp[7])) |
1033 | { | |
1034 | char *dir; | |
1035 | cp += 8; | |
1036 | while ((dir = strsep (&cp, " \t")) != NULL) | |
1037 | if (dir[0] != '\0') | |
a334319f | 1038 | parse_conf_include (filename, lineno, do_chroot, dir); |
8e115d80 | 1039 | } |
ab1d521d RM |
1040 | else if (!strncasecmp (cp, "hwcap", 5) && isblank (cp[5])) |
1041 | { | |
1042 | cp += 6; | |
1043 | char *p, *name = NULL; | |
1044 | unsigned long int n = strtoul (cp, &cp, 0); | |
1045 | if (cp != NULL && isblank (*cp)) | |
1046 | while ((p = strsep (&cp, " \t")) != NULL) | |
1047 | if (p[0] != '\0') | |
1048 | { | |
1049 | if (name == NULL) | |
1050 | name = p; | |
1051 | else | |
1052 | { | |
1053 | name = NULL; | |
1054 | break; | |
1055 | } | |
1056 | } | |
1057 | if (name == NULL) | |
1058 | { | |
1059 | error (EXIT_FAILURE, 0, _("%s:%u: bad syntax in hwcap line"), | |
1060 | filename, lineno); | |
1061 | break; | |
1062 | } | |
1063 | if (n >= (64 - _DL_FIRST_EXTRA)) | |
1064 | error (EXIT_FAILURE, 0, | |
1065 | _("%s:%u: hwcap index %lu above maximum %u"), | |
1066 | filename, lineno, n, 64 - _DL_FIRST_EXTRA - 1); | |
1067 | if (hwcap_extra[n] == NULL) | |
1068 | { | |
1069 | for (unsigned long int h = 0; h < (64 - _DL_FIRST_EXTRA); ++h) | |
1070 | if (hwcap_extra[h] != NULL && !strcmp (name, hwcap_extra[h])) | |
1071 | error (EXIT_FAILURE, 0, | |
1072 | _("%s:%u: hwcap index %lu already defined as %s"), | |
1073 | filename, lineno, h, name); | |
1074 | hwcap_extra[n] = xstrdup (name); | |
1075 | } | |
1076 | else | |
1077 | { | |
1078 | if (strcmp (name, hwcap_extra[n])) | |
1079 | error (EXIT_FAILURE, 0, | |
1080 | _("%s:%u: hwcap index %lu already defined as %s"), | |
1081 | filename, lineno, n, hwcap_extra[n]); | |
1082 | if (opt_verbose) | |
1083 | error (0, 0, _("%s:%u: duplicate hwcap %lu %s"), | |
1084 | filename, lineno, n, name); | |
1085 | } | |
1086 | } | |
8e115d80 RM |
1087 | else |
1088 | add_dir (cp); | |
69acbe9f UD |
1089 | } |
1090 | while (!feof_unlocked (file)); | |
591e1ffb UD |
1091 | |
1092 | /* Free buffer and close file. */ | |
1093 | free (line); | |
1094 | fclose (file); | |
1095 | } | |
1096 | ||
8e115d80 RM |
1097 | /* Handle one word in an `include' line, a glob pattern of additional |
1098 | config files to read. */ | |
1099 | static void | |
1100 | parse_conf_include (const char *config_file, unsigned int lineno, | |
a334319f | 1101 | bool do_chroot, const char *pattern) |
8e115d80 RM |
1102 | { |
1103 | if (opt_chroot && pattern[0] != '/') | |
1104 | error (EXIT_FAILURE, 0, | |
1105 | _("need absolute file name for configuration file when using -r")); | |
1106 | ||
1107 | char *copy = NULL; | |
1108 | if (pattern[0] != '/' && strchr (config_file, '/') != NULL) | |
1109 | { | |
322861e8 UD |
1110 | if (asprintf (©, "%s/%s", dirname (strdupa (config_file)), |
1111 | pattern) < 0) | |
1112 | error (EXIT_FAILURE, 0, _("memory exhausted")); | |
8e115d80 RM |
1113 | pattern = copy; |
1114 | } | |
1115 | ||
1116 | glob64_t gl; | |
1117 | int result; | |
1118 | if (do_chroot && opt_chroot) | |
1119 | { | |
1120 | char *canon = chroot_canon (opt_chroot, pattern); | |
1121 | result = glob64 (canon ?: pattern, 0, NULL, &gl); | |
1122 | free (canon); | |
1123 | } | |
1124 | else | |
1125 | result = glob64 (pattern, 0, NULL, &gl); | |
1126 | ||
1127 | switch (result) | |
1128 | { | |
1129 | case 0: | |
1130 | for (size_t i = 0; i < gl.gl_pathc; ++i) | |
a334319f | 1131 | parse_conf (gl.gl_pathv[i], false); |
8e115d80 RM |
1132 | globfree64 (&gl); |
1133 | break; | |
1134 | ||
1135 | case GLOB_NOMATCH: | |
1136 | break; | |
1137 | ||
1138 | case GLOB_NOSPACE: | |
1139 | errno = ENOMEM; | |
1140 | case GLOB_ABORTED: | |
1141 | if (opt_verbose) | |
1142 | error (0, errno, _("%s:%u: cannot read directory %s"), | |
1143 | config_file, lineno, pattern); | |
1144 | break; | |
1145 | ||
1146 | default: | |
1147 | abort (); | |
1148 | break; | |
1149 | } | |
1150 | ||
1151 | if (copy) | |
1152 | free (copy); | |
1153 | } | |
1154 | ||
0cfbb8c6 UD |
1155 | /* Honour LD_HWCAP_MASK. */ |
1156 | static void | |
1157 | set_hwcap (void) | |
1158 | { | |
1159 | char *mask = getenv ("LD_HWCAP_MASK"); | |
1160 | ||
1161 | if (mask) | |
1162 | hwcap_mask = strtoul (mask, NULL, 0); | |
1163 | } | |
1164 | ||
591e1ffb UD |
1165 | |
1166 | int | |
1167 | main (int argc, char **argv) | |
1168 | { | |
32c075e1 | 1169 | int remaining; |
45eca4d1 | 1170 | |
591e1ffb UD |
1171 | /* Parse and process arguments. */ |
1172 | argp_parse (&argp, argc, argv, 0, &remaining, NULL); | |
1173 | ||
11bf8ce1 | 1174 | /* Remaining arguments are additional directories if opt_manual_link |
b85697f6 UD |
1175 | is not set. */ |
1176 | if (remaining != argc && !opt_manual_link) | |
591e1ffb UD |
1177 | { |
1178 | int i; | |
1179 | for (i = remaining; i < argc; ++i) | |
11bf8ce1 UD |
1180 | if (opt_build_cache && argv[i][0] != '/') |
1181 | error (EXIT_FAILURE, 0, | |
1182 | _("relative path `%s' used to build cache"), | |
1183 | argv[i]); | |
1184 | else | |
1185 | add_dir (argv[i]); | |
591e1ffb UD |
1186 | } |
1187 | ||
32c075e1 | 1188 | #ifdef USE_TLS |
ab1d521d | 1189 | hwcap_extra[63 - _DL_FIRST_EXTRA] = "tls"; |
32c075e1 | 1190 | #endif |
ab1d521d | 1191 | |
0cfbb8c6 UD |
1192 | set_hwcap (); |
1193 | ||
591e1ffb UD |
1194 | if (opt_chroot) |
1195 | { | |
f0189a54 | 1196 | /* Normalize the path a bit, we might need it for printing later. */ |
616d9133 | 1197 | char *endp = rawmemchr (opt_chroot, '\0'); |
b4a555d6 | 1198 | while (endp > opt_chroot && endp[-1] == '/') |
f0189a54 UD |
1199 | --endp; |
1200 | *endp = '\0'; | |
b4a555d6 UD |
1201 | if (endp == opt_chroot) |
1202 | opt_chroot = NULL; | |
f0189a54 | 1203 | |
b4a555d6 UD |
1204 | if (opt_chroot) |
1205 | { | |
1206 | /* It is faster to use chroot if we can. */ | |
1207 | if (!chroot (opt_chroot)) | |
1208 | { | |
1209 | if (chdir ("/")) | |
1210 | error (EXIT_FAILURE, errno, _("Can't chdir to /")); | |
1211 | opt_chroot = NULL; | |
1212 | } | |
1213 | } | |
1214 | } | |
1215 | ||
1216 | if (cache_file == NULL) | |
1217 | { | |
1218 | cache_file = alloca (strlen (LD_SO_CACHE) + 1); | |
1219 | strcpy (cache_file, LD_SO_CACHE); | |
591e1ffb UD |
1220 | } |
1221 | ||
b4a555d6 UD |
1222 | if (config_file == NULL) |
1223 | config_file = LD_SO_CONF; | |
1224 | ||
591e1ffb UD |
1225 | if (opt_print_cache) |
1226 | { | |
b4a555d6 UD |
1227 | if (opt_chroot) |
1228 | { | |
1229 | char *p = chroot_canon (opt_chroot, cache_file); | |
1230 | if (p == NULL) | |
1231 | error (EXIT_FAILURE, errno, _("Can't open cache file %s\n"), | |
1232 | cache_file); | |
1233 | cache_file = p; | |
1234 | } | |
591e1ffb | 1235 | print_cache (cache_file); |
b4a555d6 UD |
1236 | if (opt_chroot) |
1237 | free (cache_file); | |
591e1ffb UD |
1238 | exit (0); |
1239 | } | |
1240 | ||
b4a555d6 UD |
1241 | if (opt_chroot) |
1242 | { | |
1243 | /* Canonicalize the directory name of cache_file, not cache_file, | |
1244 | because we'll rename a temporary cache file to it. */ | |
1245 | char *p = strrchr (cache_file, '/'); | |
1246 | char *canon = chroot_canon (opt_chroot, | |
1247 | p ? (*p = '\0', cache_file) : "/"); | |
1248 | ||
1249 | if (canon == NULL) | |
1250 | { | |
1251 | error (EXIT_FAILURE, errno, | |
1252 | _("Can't open cache file directory %s\n"), | |
1253 | p ? cache_file : "/"); | |
1254 | } | |
1255 | ||
1256 | if (p) | |
1257 | ++p; | |
1258 | else | |
1259 | p = cache_file; | |
1260 | ||
1261 | cache_file = alloca (strlen (canon) + strlen (p) + 2); | |
1262 | sprintf (cache_file, "%s/%s", canon, p); | |
1263 | free (canon); | |
1264 | } | |
1265 | ||
b85697f6 UD |
1266 | if (opt_manual_link) |
1267 | { | |
1268 | /* Link all given libraries manually. */ | |
1269 | int i; | |
1270 | ||
1271 | for (i = remaining; i < argc; ++i) | |
a986484f | 1272 | manual_link (argv[i]); |
b85697f6 UD |
1273 | |
1274 | exit (0); | |
1275 | } | |
45eca4d1 UD |
1276 | |
1277 | ||
591e1ffb UD |
1278 | if (opt_build_cache) |
1279 | init_cache (); | |
1280 | ||
1281 | if (!opt_only_cline) | |
1282 | { | |
a334319f | 1283 | parse_conf (config_file, true); |
334fcf2a | 1284 | |
591e1ffb | 1285 | /* Always add the standard search paths. */ |
bd89c0b5 | 1286 | add_system_dir (SLIBDIR); |
8ca91b36 | 1287 | if (strcmp (SLIBDIR, LIBDIR)) |
bd89c0b5 | 1288 | add_system_dir (LIBDIR); |
591e1ffb | 1289 | } |
45eca4d1 | 1290 | |
591e1ffb UD |
1291 | search_dirs (); |
1292 | ||
1293 | if (opt_build_cache) | |
1294 | save_cache (cache_file); | |
1295 | ||
1296 | return 0; | |
1297 | } |