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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> |
11bf311e | 27 | #include <locale.h> |
f57ebe29 | 28 | #include <stdbool.h> |
591e1ffb | 29 | #include <stdio.h> |
c96873d7 | 30 | #include <stdio_ext.h> |
591e1ffb UD |
31 | #include <stdlib.h> |
32 | #include <string.h> | |
33 | #include <unistd.h> | |
34 | #include <sys/fcntl.h> | |
35 | #include <sys/mman.h> | |
36 | #include <sys/stat.h> | |
37 | #include <sys/types.h> | |
8e115d80 RM |
38 | #include <glob.h> |
39 | #include <libgen.h> | |
591e1ffb | 40 | |
8f480b4b RM |
41 | #include <ldconfig.h> |
42 | #include <dl-cache.h> | |
591e1ffb | 43 | |
8f480b4b | 44 | #include <dl-procinfo.h> |
591e1ffb | 45 | |
ab1d521d RM |
46 | #ifdef _DL_FIRST_PLATFORM |
47 | # define _DL_FIRST_EXTRA (_DL_FIRST_PLATFORM + _DL_PLATFORMS_COUNT) | |
48 | #else | |
49 | # define _DL_FIRST_EXTRA _DL_HWCAP_COUNT | |
50 | #endif | |
51 | ||
591e1ffb | 52 | #ifndef LD_SO_CONF |
8ca91b36 | 53 | # define LD_SO_CONF SYSCONFDIR "/ld.so.conf" |
591e1ffb UD |
54 | #endif |
55 | ||
56 | /* Get libc version number. */ | |
57 | #include <version.h> | |
58 | ||
59 | #define PACKAGE _libc_intl_domainname | |
60 | ||
591e1ffb UD |
61 | static const struct |
62 | { | |
63 | const char *name; | |
64 | int flag; | |
a986484f | 65 | } lib_types[] = |
591e1ffb UD |
66 | { |
67 | {"libc4", FLAG_LIBC4}, | |
68 | {"libc5", FLAG_ELF_LIBC5}, | |
69 | {"libc6", FLAG_ELF_LIBC6}, | |
70 | {"glibc2", FLAG_ELF_LIBC6} | |
45eca4d1 | 71 | }; |
591e1ffb UD |
72 | |
73 | ||
74 | /* List of directories to handle. */ | |
75 | struct dir_entry | |
76 | { | |
77 | char *path; | |
78 | int flag; | |
4ceae915 AJ |
79 | ino64_t ino; |
80 | dev_t dev; | |
591e1ffb UD |
81 | struct dir_entry *next; |
82 | }; | |
83 | ||
84 | /* The list is unsorted, contains no duplicates. Entries are added at | |
85 | the end. */ | |
86 | static struct dir_entry *dir_entries; | |
87 | ||
88 | /* Flags for different options. */ | |
89 | /* Print Cache. */ | |
c96873d7 | 90 | static int opt_print_cache; |
591e1ffb UD |
91 | |
92 | /* Be verbose. */ | |
c96873d7 | 93 | int opt_verbose; |
591e1ffb | 94 | |
45eca4d1 UD |
95 | /* Format to support. */ |
96 | /* 0: only libc5/glibc2; 1: both; 2: only glibc 2.2. */ | |
97 | int opt_format = 1; | |
98 | ||
591e1ffb UD |
99 | /* Build cache. */ |
100 | static int opt_build_cache = 1; | |
101 | ||
102 | /* Generate links. */ | |
103 | static int opt_link = 1; | |
104 | ||
105 | /* Only process directories specified on the command line. */ | |
c96873d7 | 106 | static int opt_only_cline; |
591e1ffb UD |
107 | |
108 | /* Path to root for chroot. */ | |
109 | static char *opt_chroot; | |
110 | ||
b85697f6 | 111 | /* Manually link given shared libraries. */ |
c96873d7 | 112 | static int opt_manual_link; |
b85697f6 | 113 | |
591e1ffb | 114 | /* Cache file to use. */ |
b4a555d6 | 115 | static char *cache_file; |
591e1ffb UD |
116 | |
117 | /* Configuration file. */ | |
118 | static const char *config_file; | |
119 | ||
0cfbb8c6 UD |
120 | /* Mask to use for important hardware capabilities. */ |
121 | static unsigned long int hwcap_mask = HWCAP_IMPORTANT; | |
122 | ||
ab1d521d RM |
123 | /* Configuration-defined capabilities defined in kernel vDSOs. */ |
124 | static const char *hwcap_extra[64 - _DL_FIRST_EXTRA]; | |
125 | ||
591e1ffb UD |
126 | /* Name and version of program. */ |
127 | static void print_version (FILE *stream, struct argp_state *state); | |
128 | void (*argp_program_version_hook) (FILE *, struct argp_state *) | |
129 | = print_version; | |
130 | ||
131 | /* Definitions of arguments for argp functions. */ | |
132 | static const struct argp_option options[] = | |
133 | { | |
134 | { "print-cache", 'p', NULL, 0, N_("Print cache"), 0}, | |
135 | { "verbose", 'v', NULL, 0, N_("Generate verbose messages"), 0}, | |
136 | { NULL, 'N', NULL, 0, N_("Don't build cache"), 0}, | |
137 | { NULL, 'X', NULL, 0, N_("Don't generate links"), 0}, | |
7864c09b UD |
138 | { NULL, 'r', N_("ROOT"), 0, N_("Change to and use ROOT as root directory"), 0}, |
139 | { NULL, 'C', N_("CACHE"), 0, N_("Use CACHE as cache file"), 0}, | |
140 | { NULL, 'f', N_("CONF"), 0, N_("Use CONF as configuration file"), 0}, | |
591e1ffb | 141 | { NULL, 'n', NULL, 0, N_("Only process directories specified on the command line. Don't build cache."), 0}, |
b85697f6 | 142 | { NULL, 'l', NULL, 0, N_("Manually link individual libraries."), 0}, |
7864c09b | 143 | { "format", 'c', N_("FORMAT"), 0, N_("Format to use: new, old or compat (default)"), 0}, |
591e1ffb UD |
144 | { NULL, 0, NULL, 0, NULL, 0 } |
145 | }; | |
146 | ||
11bf8ce1 UD |
147 | #define PROCINFO_CLASS static |
148 | #include <dl-procinfo.c> | |
149 | ||
591e1ffb UD |
150 | /* Short description of program. */ |
151 | static const char doc[] = N_("Configure Dynamic Linker Run Time Bindings."); | |
152 | ||
153 | /* Prototype for option handler. */ | |
154 | static error_t parse_opt (int key, char *arg, struct argp_state *state); | |
155 | ||
156 | /* Data structure to communicate with argp functions. */ | |
157 | static struct argp argp = | |
158 | { | |
159 | options, parse_opt, NULL, doc, NULL, NULL, NULL | |
160 | }; | |
161 | ||
a6c1c03a AJ |
162 | /* Check if string corresponds to an important hardware capability or |
163 | a platform. */ | |
45eca4d1 | 164 | static int |
a6c1c03a | 165 | is_hwcap_platform (const char *name) |
45eca4d1 UD |
166 | { |
167 | int hwcap_idx = _dl_string_hwcap (name); | |
8ca91b36 | 168 | |
0cfbb8c6 | 169 | if (hwcap_idx != -1 && ((1 << hwcap_idx) & hwcap_mask)) |
45eca4d1 | 170 | return 1; |
a6c1c03a AJ |
171 | |
172 | hwcap_idx = _dl_string_platform (name); | |
173 | if (hwcap_idx != -1) | |
174 | return 1; | |
175 | ||
ab1d521d RM |
176 | for (hwcap_idx = _DL_FIRST_EXTRA; hwcap_idx < 64; ++hwcap_idx) |
177 | if (hwcap_extra[hwcap_idx - _DL_FIRST_EXTRA] != NULL | |
178 | && !strcmp (name, hwcap_extra[hwcap_idx - _DL_FIRST_EXTRA])) | |
179 | return 1; | |
676fde70 | 180 | |
45eca4d1 UD |
181 | return 0; |
182 | } | |
183 | ||
a6c1c03a AJ |
184 | /* Get hwcap (including platform) encoding of path. */ |
185 | static uint64_t | |
45eca4d1 UD |
186 | path_hwcap (const char *path) |
187 | { | |
188 | char *str = xstrdup (path); | |
189 | char *ptr; | |
a6c1c03a AJ |
190 | uint64_t hwcap = 0; |
191 | uint64_t h; | |
45eca4d1 UD |
192 | |
193 | size_t len; | |
194 | ||
195 | len = strlen (str); | |
196 | if (str[len] == '/') | |
197 | str[len] = '\0'; | |
198 | ||
199 | /* Search pathname from the end and check for hwcap strings. */ | |
200 | for (;;) | |
201 | { | |
202 | ptr = strrchr (str, '/'); | |
203 | ||
204 | if (ptr == NULL) | |
205 | break; | |
206 | ||
a6c1c03a | 207 | h = _dl_string_hwcap (ptr + 1); |
45eca4d1 | 208 | |
59553897 UD |
209 | if (h == (uint64_t) -1) |
210 | { | |
211 | h = _dl_string_platform (ptr + 1); | |
212 | if (h == (uint64_t) -1) | |
676fde70 | 213 | { |
ab1d521d RM |
214 | for (h = _DL_FIRST_EXTRA; h < 64; ++h) |
215 | if (hwcap_extra[h - _DL_FIRST_EXTRA] != NULL | |
216 | && !strcmp (ptr + 1, hwcap_extra[h - _DL_FIRST_EXTRA])) | |
217 | break; | |
218 | if (h == 64) | |
676fde70 UD |
219 | break; |
220 | } | |
59553897 | 221 | } |
a6c1c03a | 222 | hwcap += 1ULL << h; |
591e1ffb | 223 | |
45eca4d1 UD |
224 | /* Search the next part of the path. */ |
225 | *ptr = '\0'; | |
226 | } | |
227 | ||
228 | free (str); | |
229 | return hwcap; | |
230 | } | |
591e1ffb UD |
231 | |
232 | /* Handle program arguments. */ | |
233 | static error_t | |
234 | parse_opt (int key, char *arg, struct argp_state *state) | |
235 | { | |
236 | switch (key) | |
237 | { | |
238 | case 'C': | |
239 | cache_file = arg; | |
240 | break; | |
241 | case 'f': | |
242 | config_file = arg; | |
243 | break; | |
b85697f6 UD |
244 | case 'l': |
245 | opt_manual_link = 1; | |
246 | break; | |
591e1ffb UD |
247 | case 'N': |
248 | opt_build_cache = 0; | |
249 | break; | |
250 | case 'n': | |
251 | opt_build_cache = 0; | |
252 | opt_only_cline = 1; | |
253 | break; | |
254 | case 'p': | |
255 | opt_print_cache = 1; | |
256 | break; | |
257 | case 'r': | |
258 | opt_chroot = arg; | |
259 | break; | |
260 | case 'v': | |
261 | opt_verbose = 1; | |
262 | break; | |
263 | case 'X': | |
264 | opt_link = 0; | |
265 | break; | |
45eca4d1 UD |
266 | case 'c': |
267 | if (strcmp (arg, "old") == 0) | |
268 | opt_format = 0; | |
269 | else if (strcmp (arg, "compat") == 0) | |
270 | opt_format = 1; | |
271 | else if (strcmp (arg, "new") == 0) | |
272 | opt_format = 2; | |
273 | break; | |
591e1ffb UD |
274 | default: |
275 | return ARGP_ERR_UNKNOWN; | |
276 | } | |
277 | ||
278 | return 0; | |
279 | } | |
280 | ||
281 | /* Print the version information. */ | |
282 | static void | |
283 | print_version (FILE *stream, struct argp_state *state) | |
284 | { | |
285 | fprintf (stream, "ldconfig (GNU %s) %s\n", PACKAGE, VERSION); | |
286 | fprintf (stream, gettext ("\ | |
287 | Copyright (C) %s Free Software Foundation, Inc.\n\ | |
288 | This is free software; see the source for copying conditions. There is NO\n\ | |
289 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ | |
11bf311e | 290 | "), "2007"); |
591e1ffb UD |
291 | fprintf (stream, gettext ("Written by %s.\n"), |
292 | "Andreas Jaeger"); | |
293 | } | |
294 | ||
a8fd59b0 AJ |
295 | /* Add a single directory entry. */ |
296 | static void | |
297 | add_single_dir (struct dir_entry *entry, int verbose) | |
298 | { | |
299 | struct dir_entry *ptr, *prev; | |
300 | ||
301 | ptr = dir_entries; | |
302 | prev = ptr; | |
303 | while (ptr != NULL) | |
304 | { | |
305 | /* Check for duplicates. */ | |
4ceae915 | 306 | if (ptr->ino == entry->ino && ptr->dev == entry->dev) |
a8fd59b0 AJ |
307 | { |
308 | if (opt_verbose && verbose) | |
309 | error (0, 0, _("Path `%s' given more than once"), entry->path); | |
310 | /* Use the newer information. */ | |
311 | ptr->flag = entry->flag; | |
4ceae915 | 312 | free (entry->path); |
a8fd59b0 AJ |
313 | free (entry); |
314 | break; | |
315 | } | |
316 | prev = ptr; | |
317 | ptr = ptr->next; | |
318 | } | |
319 | /* Is this the first entry? */ | |
320 | if (ptr == NULL && dir_entries == NULL) | |
321 | dir_entries = entry; | |
322 | else if (ptr == NULL) | |
323 | prev->next = entry; | |
324 | } | |
325 | ||
591e1ffb UD |
326 | /* Add one directory to the list of directories to process. */ |
327 | static void | |
328 | add_dir (const char *line) | |
329 | { | |
591e1ffb | 330 | unsigned int i; |
539842a4 | 331 | struct dir_entry *entry = xmalloc (sizeof (struct dir_entry)); |
591e1ffb | 332 | entry->next = NULL; |
45eca4d1 | 333 | |
591e1ffb UD |
334 | /* Search for an '=' sign. */ |
335 | entry->path = xstrdup (line); | |
539842a4 | 336 | char *equal_sign = strchr (entry->path, '='); |
591e1ffb UD |
337 | if (equal_sign) |
338 | { | |
339 | *equal_sign = '\0'; | |
340 | ++equal_sign; | |
341 | entry->flag = FLAG_ANY; | |
a986484f | 342 | for (i = 0; i < sizeof (lib_types) / sizeof (lib_types[0]); ++i) |
591e1ffb UD |
343 | if (strcmp (equal_sign, lib_types[i].name) == 0) |
344 | { | |
345 | entry->flag = lib_types[i].flag; | |
346 | break; | |
347 | } | |
348 | if (entry->flag == FLAG_ANY) | |
349 | error (0, 0, _("%s is not a known library type"), equal_sign); | |
350 | } | |
351 | else | |
352 | { | |
353 | entry->flag = FLAG_ANY; | |
354 | } | |
355 | ||
69acbe9f UD |
356 | /* Canonify path: for now only remove leading and trailing |
357 | whitespace and the trailing slashes slashes. */ | |
591e1ffb | 358 | i = strlen (entry->path) - 1; |
69acbe9f UD |
359 | |
360 | while (isspace (entry->path[i]) && i > 0) | |
361 | entry->path[i--] = '\0'; | |
362 | ||
591e1ffb | 363 | while (entry->path[i] == '/' && i > 0) |
69acbe9f | 364 | entry->path[i--] = '\0'; |
45eca4d1 | 365 | |
539842a4 UD |
366 | char *path = entry->path; |
367 | if (opt_chroot) | |
368 | path = chroot_canon (opt_chroot, path); | |
369 | ||
370 | struct stat64 stat_buf; | |
371 | if (path == NULL || stat64 (path, &stat_buf)) | |
4ceae915 | 372 | { |
8645ad47 AJ |
373 | if (opt_verbose) |
374 | error (0, errno, _("Can't stat %s"), entry->path); | |
4ceae915 AJ |
375 | free (entry->path); |
376 | free (entry); | |
4ceae915 | 377 | } |
539842a4 UD |
378 | else |
379 | { | |
380 | entry->ino = stat_buf.st_ino; | |
381 | entry->dev = stat_buf.st_dev; | |
4ceae915 | 382 | |
539842a4 UD |
383 | add_single_dir (entry, 1); |
384 | } | |
4ceae915 | 385 | |
539842a4 UD |
386 | if (opt_chroot) |
387 | free (path); | |
591e1ffb UD |
388 | } |
389 | ||
390 | ||
b4a555d6 UD |
391 | static int |
392 | chroot_stat (const char *real_path, const char *path, struct stat64 *st) | |
393 | { | |
394 | int ret; | |
395 | char *canon_path; | |
396 | ||
397 | if (!opt_chroot) | |
398 | return stat64 (real_path, st); | |
399 | ||
400 | ret = lstat64 (real_path, st); | |
401 | if (ret || !S_ISLNK (st->st_mode)) | |
402 | return ret; | |
403 | ||
404 | canon_path = chroot_canon (opt_chroot, path); | |
405 | if (canon_path == NULL) | |
406 | return -1; | |
407 | ||
408 | ret = stat64 (canon_path, st); | |
409 | free (canon_path); | |
410 | return ret; | |
411 | } | |
412 | ||
591e1ffb UD |
413 | /* Create a symbolic link from soname to libname in directory path. */ |
414 | static void | |
b4a555d6 UD |
415 | create_links (const char *real_path, const char *path, const char *libname, |
416 | const char *soname) | |
591e1ffb | 417 | { |
7b0d235c | 418 | char *full_libname, *full_soname; |
b4a555d6 UD |
419 | char *real_full_libname, *real_full_soname; |
420 | struct stat64 stat_lib, stat_so, lstat_so; | |
591e1ffb UD |
421 | int do_link = 1; |
422 | int do_remove = 1; | |
423 | /* XXX: The logics in this function should be simplified. */ | |
45eca4d1 | 424 | |
591e1ffb | 425 | /* Get complete path. */ |
7b0d235c | 426 | full_libname = alloca (strlen (path) + strlen (libname) + 2); |
7c545dbe | 427 | full_soname = alloca (strlen (path) + strlen (soname) + 2); |
7b0d235c AJ |
428 | sprintf (full_libname, "%s/%s", path, libname); |
429 | sprintf (full_soname, "%s/%s", path, soname); | |
b4a555d6 UD |
430 | if (opt_chroot) |
431 | { | |
432 | real_full_libname = alloca (strlen (real_path) + strlen (libname) + 2); | |
7c545dbe | 433 | real_full_soname = alloca (strlen (real_path) + strlen (soname) + 2); |
b4a555d6 UD |
434 | sprintf (real_full_libname, "%s/%s", real_path, libname); |
435 | sprintf (real_full_soname, "%s/%s", real_path, soname); | |
436 | } | |
437 | else | |
438 | { | |
439 | real_full_libname = full_libname; | |
440 | real_full_soname = full_soname; | |
441 | } | |
591e1ffb UD |
442 | |
443 | /* Does soname already exist and point to the right library? */ | |
b4a555d6 | 444 | if (chroot_stat (real_full_soname, full_soname, &stat_so) == 0) |
591e1ffb | 445 | { |
b4a555d6 | 446 | if (chroot_stat (real_full_libname, full_libname, &stat_lib)) |
591e1ffb UD |
447 | { |
448 | error (0, 0, _("Can't stat %s\n"), full_libname); | |
449 | return; | |
450 | } | |
451 | if (stat_lib.st_dev == stat_so.st_dev | |
452 | && stat_lib.st_ino == stat_so.st_ino) | |
453 | /* Link is already correct. */ | |
454 | do_link = 0; | |
b4a555d6 | 455 | else if (lstat64 (full_soname, &lstat_so) == 0 |
591e1ffb UD |
456 | && !S_ISLNK (lstat_so.st_mode)) |
457 | { | |
458 | error (0, 0, _("%s is not a symbolic link\n"), full_soname); | |
459 | do_link = 0; | |
460 | do_remove = 0; | |
461 | } | |
462 | } | |
b4a555d6 | 463 | else if (lstat64 (real_full_soname, &lstat_so) != 0 |
591e1ffb UD |
464 | || !S_ISLNK (lstat_so.st_mode)) |
465 | /* Unless it is a stale symlink, there is no need to remove. */ | |
466 | do_remove = 0; | |
467 | ||
468 | if (opt_verbose) | |
469 | printf ("\t%s -> %s", soname, libname); | |
470 | ||
471 | if (do_link && opt_link) | |
472 | { | |
473 | /* Remove old link. */ | |
474 | if (do_remove) | |
b4a555d6 | 475 | if (unlink (real_full_soname)) |
591e1ffb UD |
476 | { |
477 | error (0, 0, _("Can't unlink %s"), full_soname); | |
478 | do_link = 0; | |
479 | } | |
480 | /* Create symbolic link. */ | |
b4a555d6 | 481 | if (do_link && symlink (libname, real_full_soname)) |
591e1ffb UD |
482 | { |
483 | error (0, 0, _("Can't link %s to %s"), full_soname, libname); | |
484 | do_link = 0; | |
485 | } | |
486 | if (opt_verbose) | |
487 | { | |
488 | if (do_link) | |
489 | fputs (_(" (changed)\n"), stdout); | |
490 | else | |
491 | fputs (_(" (SKIPPED)\n"), stdout); | |
492 | } | |
493 | } | |
494 | else if (opt_verbose) | |
495 | fputs ("\n", stdout); | |
496 | } | |
497 | ||
b85697f6 UD |
498 | /* Manually link the given library. */ |
499 | static void | |
500 | manual_link (char *library) | |
501 | { | |
502 | char *path; | |
b4a555d6 UD |
503 | char *real_path; |
504 | char *real_library; | |
b85697f6 UD |
505 | char *libname; |
506 | char *soname; | |
b4a555d6 | 507 | struct stat64 stat_buf; |
b85697f6 | 508 | int flag; |
a986484f | 509 | unsigned int osversion; |
b85697f6 UD |
510 | |
511 | /* Prepare arguments for create_links call. Split library name in | |
512 | directory and filename first. Since path is allocated, we've got | |
513 | to be careful to free at the end. */ | |
514 | path = xstrdup (library); | |
515 | libname = strrchr (path, '/'); | |
516 | ||
517 | if (libname) | |
518 | { | |
519 | /* Successfully split names. Check if path is just "/" to avoid | |
520 | an empty path. */ | |
521 | if (libname == path) | |
522 | { | |
523 | libname = library + 1; | |
524 | path = xrealloc (path, 2); | |
525 | strcpy (path, "/"); | |
526 | } | |
527 | else | |
528 | { | |
529 | *libname = '\0'; | |
530 | ++libname; | |
531 | } | |
532 | } | |
533 | else | |
534 | { | |
535 | /* There's no path, construct one. */ | |
536 | libname = library; | |
537 | path = xrealloc (path, 2); | |
538 | strcpy (path, "."); | |
539 | } | |
540 | ||
b4a555d6 UD |
541 | if (opt_chroot) |
542 | { | |
543 | real_path = chroot_canon (opt_chroot, path); | |
544 | if (real_path == NULL) | |
545 | { | |
546 | error (0, errno, _("Can't find %s"), path); | |
547 | free (path); | |
548 | return; | |
549 | } | |
550 | real_library = alloca (strlen (real_path) + strlen (libname) + 2); | |
551 | sprintf (real_library, "%s/%s", real_path, libname); | |
552 | } | |
553 | else | |
554 | { | |
555 | real_path = path; | |
556 | real_library = library; | |
557 | } | |
558 | ||
b85697f6 | 559 | /* Do some sanity checks first. */ |
b4a555d6 | 560 | if (lstat64 (real_library, &stat_buf)) |
b85697f6 | 561 | { |
11bf311e | 562 | error (0, errno, _("Cannot lstat %s"), library); |
b85697f6 UD |
563 | free (path); |
564 | return; | |
565 | } | |
566 | /* We don't want links here! */ | |
567 | else if (!S_ISREG (stat_buf.st_mode)) | |
568 | { | |
569 | error (0, 0, _("Ignored file %s since it is not a regular file."), | |
570 | library); | |
571 | free (path); | |
572 | return; | |
573 | } | |
a986484f UD |
574 | if (process_file (real_library, library, libname, &flag, &osversion, |
575 | &soname, 0)) | |
b85697f6 UD |
576 | { |
577 | error (0, 0, _("No link created since soname could not be found for %s"), | |
578 | library); | |
579 | free (path); | |
580 | return; | |
581 | } | |
b4a555d6 | 582 | create_links (real_path, path, libname, soname); |
b85697f6 UD |
583 | free (soname); |
584 | free (path); | |
585 | } | |
586 | ||
587 | ||
591e1ffb UD |
588 | /* Read a whole directory and search for libraries. |
589 | The purpose is two-fold: | |
590 | - search for libraries which will be added to the cache | |
591 | - create symbolic links to the soname for each library | |
592 | ||
593 | This has to be done separatly for each directory. | |
45eca4d1 | 594 | |
591e1ffb UD |
595 | To keep track of which libraries to add to the cache and which |
596 | links to create, we save a list of all libraries. | |
597 | ||
598 | The algorithm is basically: | |
599 | for all libraries in the directory do | |
600 | get soname of library | |
601 | if soname is already in list | |
602 | if new library is newer, replace entry | |
603 | otherwise ignore this library | |
604 | otherwise add library to list | |
45eca4d1 | 605 | |
591e1ffb UD |
606 | For example, if the two libraries libxy.so.1.1 and libxy.so.1.2 |
607 | exist and both have the same soname, e.g. libxy.so, a symbolic link | |
608 | is created from libxy.so.1.2 (the newer one) to libxy.so. | |
609 | libxy.so.1.2 and libxy.so are added to the cache - but not | |
610 | libxy.so.1.1. */ | |
611 | ||
612 | /* Information for one library. */ | |
45eca4d1 | 613 | struct dlib_entry |
591e1ffb UD |
614 | { |
615 | char *name; | |
616 | char *soname; | |
617 | int flag; | |
618 | int is_link; | |
a986484f | 619 | unsigned int osversion; |
591e1ffb UD |
620 | struct dlib_entry *next; |
621 | }; | |
622 | ||
623 | ||
624 | static void | |
625 | search_dir (const struct dir_entry *entry) | |
626 | { | |
627 | DIR *dir; | |
2b510e91 | 628 | struct dirent64 *direntry; |
b4a555d6 UD |
629 | char *file_name, *dir_name, *real_file_name, *real_name; |
630 | int file_name_len, real_file_name_len, len; | |
591e1ffb UD |
631 | char *soname; |
632 | struct dlib_entry *dlibs; | |
633 | struct dlib_entry *dlib_ptr; | |
4ceae915 AJ |
634 | struct stat64 lstat_buf, stat_buf; |
635 | int is_link, is_dir; | |
a6c1c03a | 636 | uint64_t hwcap = path_hwcap (entry->path); |
a986484f | 637 | unsigned int osversion; |
45eca4d1 | 638 | |
7b0d235c AJ |
639 | file_name_len = PATH_MAX; |
640 | file_name = alloca (file_name_len); | |
f0189a54 | 641 | |
591e1ffb UD |
642 | dlibs = NULL; |
643 | ||
644 | if (opt_verbose) | |
45eca4d1 UD |
645 | { |
646 | if (hwcap != 0) | |
ab1d521d | 647 | printf ("%s: (hwcap: %#.16" PRIx64 ")\n", entry->path, hwcap); |
45eca4d1 UD |
648 | else |
649 | printf ("%s:\n", entry->path); | |
650 | } | |
651 | ||
b4a555d6 UD |
652 | if (opt_chroot) |
653 | { | |
654 | dir_name = chroot_canon (opt_chroot, entry->path); | |
655 | real_file_name_len = PATH_MAX; | |
656 | real_file_name = alloca (real_file_name_len); | |
657 | } | |
658 | else | |
659 | { | |
660 | dir_name = entry->path; | |
661 | real_file_name_len = 0; | |
662 | real_file_name = file_name; | |
663 | } | |
664 | ||
665 | if (dir_name == NULL || (dir = opendir (dir_name)) == NULL) | |
591e1ffb UD |
666 | { |
667 | if (opt_verbose) | |
668 | error (0, errno, _("Can't open directory %s"), entry->path); | |
b4a555d6 UD |
669 | if (opt_chroot && dir_name) |
670 | free (dir_name); | |
591e1ffb UD |
671 | return; |
672 | } | |
45eca4d1 | 673 | |
2b510e91 | 674 | while ((direntry = readdir64 (dir)) != NULL) |
591e1ffb UD |
675 | { |
676 | int flag; | |
677 | #ifdef _DIRENT_HAVE_D_TYPE | |
678 | /* We only look at links and regular files. */ | |
679 | if (direntry->d_type != DT_UNKNOWN | |
680 | && direntry->d_type != DT_LNK | |
45eca4d1 UD |
681 | && direntry->d_type != DT_REG |
682 | && direntry->d_type != DT_DIR) | |
591e1ffb UD |
683 | continue; |
684 | #endif /* _DIRENT_HAVE_D_TYPE */ | |
45eca4d1 UD |
685 | /* Does this file look like a shared library or is it a hwcap |
686 | subdirectory? The dynamic linker is also considered as | |
687 | shared library. */ | |
688 | if (((strncmp (direntry->d_name, "lib", 3) != 0 | |
689 | && strncmp (direntry->d_name, "ld-", 3) != 0) | |
690 | || strstr (direntry->d_name, ".so") == NULL) | |
95ce33a5 UD |
691 | && ( |
692 | #ifdef _DIRENT_HAVE_D_TYPE | |
693 | direntry->d_type == DT_REG || | |
694 | #endif | |
695 | !is_hwcap_platform (direntry->d_name))) | |
591e1ffb | 696 | continue; |
3858bf28 RM |
697 | len = strlen (direntry->d_name); |
698 | /* Skip temporary files created by the prelink program. Files with | |
699 | names like these are never really DSOs we want to look at. */ | |
700 | if (len >= sizeof (".#prelink#") - 1) | |
701 | { | |
702 | if (strcmp (direntry->d_name + len - sizeof (".#prelink#") + 1, | |
703 | ".#prelink#") == 0) | |
704 | continue; | |
705 | if (len >= sizeof (".#prelink#.XXXXXX") - 1 | |
706 | && memcmp (direntry->d_name + len - sizeof (".#prelink#.XXXXXX") | |
707 | + 1, ".#prelink#.", sizeof (".#prelink#.") - 1) == 0) | |
708 | continue; | |
709 | } | |
11bf311e | 710 | len += strlen (entry->path); |
7b0d235c | 711 | if (len > file_name_len) |
591e1ffb | 712 | { |
11bf311e | 713 | file_name_len = len + 1; |
7b0d235c | 714 | file_name = alloca (file_name_len); |
b4a555d6 UD |
715 | if (!opt_chroot) |
716 | real_file_name = file_name; | |
717 | } | |
718 | sprintf (file_name, "%s/%s", entry->path, direntry->d_name); | |
719 | if (opt_chroot) | |
720 | { | |
11bf311e | 721 | len = strlen (dir_name) + strlen (direntry->d_name); |
b4a555d6 UD |
722 | if (len > real_file_name_len) |
723 | { | |
11bf311e | 724 | real_file_name_len = len + 1; |
b4a555d6 UD |
725 | real_file_name = alloca (real_file_name_len); |
726 | } | |
727 | sprintf (real_file_name, "%s/%s", dir_name, direntry->d_name); | |
591e1ffb | 728 | } |
7c3002f0 UD |
729 | #ifdef _DIRENT_HAVE_D_TYPE |
730 | if (direntry->d_type != DT_UNKNOWN) | |
4ceae915 | 731 | lstat_buf.st_mode = DTTOIF (direntry->d_type); |
7c3002f0 UD |
732 | else |
733 | #endif | |
95ce33a5 | 734 | if (__builtin_expect (lstat64 (real_file_name, &lstat_buf), 0)) |
7c3002f0 | 735 | { |
95ce33a5 | 736 | error (0, errno, _("Cannot lstat %s"), file_name); |
7c3002f0 UD |
737 | continue; |
738 | } | |
739 | ||
4ceae915 AJ |
740 | is_link = S_ISLNK (lstat_buf.st_mode); |
741 | if (is_link) | |
742 | { | |
743 | /* In case of symlink, we check if the symlink refers to | |
744 | a directory. */ | |
95ce33a5 | 745 | if (__builtin_expect (stat64 (real_file_name, &stat_buf), 0)) |
4ceae915 | 746 | { |
8645ad47 | 747 | if (opt_verbose) |
95ce33a5 | 748 | error (0, errno, _("Cannot stat %s"), file_name); |
647eb037 UD |
749 | |
750 | /* Remove stale symlinks. */ | |
751 | if (strstr (direntry->d_name, ".so.")) | |
752 | unlink (real_file_name); | |
4ceae915 AJ |
753 | continue; |
754 | } | |
755 | is_dir = S_ISDIR (stat_buf.st_mode); | |
756 | } | |
757 | else | |
758 | is_dir = S_ISDIR (lstat_buf.st_mode); | |
759 | ||
760 | if (is_dir && is_hwcap_platform (direntry->d_name)) | |
45eca4d1 | 761 | { |
a8fd59b0 AJ |
762 | /* Handle subdirectory later. */ |
763 | struct dir_entry *new_entry; | |
764 | ||
765 | new_entry = xmalloc (sizeof (struct dir_entry)); | |
7b0d235c | 766 | new_entry->path = xstrdup (file_name); |
a8fd59b0 AJ |
767 | new_entry->flag = entry->flag; |
768 | new_entry->next = NULL; | |
4ceae915 AJ |
769 | if (is_link) |
770 | { | |
771 | new_entry->ino = stat_buf.st_ino; | |
772 | new_entry->dev = stat_buf.st_dev; | |
773 | } | |
774 | else | |
775 | { | |
95ce33a5 UD |
776 | #ifdef _DIRENT_HAVE_D_TYPE |
777 | /* We have filled in lstat only #ifndef | |
778 | _DIRENT_HAVE_D_TYPE. Fill it in if needed. */ | |
779 | if (direntry->d_type != DT_UNKNOWN | |
780 | && __builtin_expect (lstat64 (real_file_name, &lstat_buf), | |
781 | 0)) | |
782 | { | |
783 | error (0, errno, _("Cannot lstat %s"), file_name); | |
784 | free (new_entry->path); | |
785 | free (new_entry); | |
786 | continue; | |
787 | } | |
788 | #endif | |
789 | ||
4ceae915 AJ |
790 | new_entry->ino = lstat_buf.st_ino; |
791 | new_entry->dev = lstat_buf.st_dev; | |
792 | } | |
a8fd59b0 | 793 | add_single_dir (new_entry, 0); |
45eca4d1 UD |
794 | continue; |
795 | } | |
0f843f89 | 796 | else if (!S_ISREG (lstat_buf.st_mode) && !is_link) |
591e1ffb UD |
797 | continue; |
798 | ||
b4a555d6 UD |
799 | if (opt_chroot && is_link) |
800 | { | |
801 | real_name = chroot_canon (opt_chroot, file_name); | |
802 | if (real_name == NULL) | |
803 | { | |
804 | if (strstr (file_name, ".so") == NULL) | |
805 | error (0, 0, _("Input file %s not found.\n"), file_name); | |
806 | continue; | |
807 | } | |
808 | } | |
809 | else | |
810 | real_name = real_file_name; | |
591e1ffb | 811 | |
b4a555d6 | 812 | if (process_file (real_name, file_name, direntry->d_name, &flag, |
a986484f | 813 | &osversion, &soname, is_link)) |
b4a555d6 UD |
814 | { |
815 | if (real_name != real_file_name) | |
816 | free (real_name); | |
817 | continue; | |
818 | } | |
819 | ||
82d8607d UD |
820 | |
821 | /* A link may just point to itself. */ | |
591e1ffb UD |
822 | if (is_link) |
823 | { | |
82d8607d UD |
824 | /* If the path the link points to isn't its soname and it is not |
825 | .so symlink for ld(1) only, we treat it as a normal file. */ | |
2fe98a4a | 826 | const char *real_base_name = basename (real_file_name); |
82d8607d UD |
827 | |
828 | if (strcmp (real_base_name, soname) != 0) | |
829 | { | |
830 | len = strlen (real_base_name); | |
831 | if (len < strlen (".so") | |
832 | || strcmp (real_base_name + len - strlen (".so"), ".so") != 0 | |
833 | || strncmp (real_base_name, soname, len) != 0) | |
834 | is_link = 0; | |
835 | } | |
836 | } | |
45eca4d1 | 837 | |
395412a0 UD |
838 | if (real_name != real_file_name) |
839 | free (real_name); | |
840 | ||
82d8607d UD |
841 | if (is_link) |
842 | { | |
843 | free (soname); | |
844 | soname = xstrdup (direntry->d_name); | |
845 | } | |
846 | ||
591e1ffb UD |
847 | if (flag == FLAG_ELF |
848 | && (entry->flag == FLAG_ELF_LIBC5 | |
849 | || entry->flag == FLAG_ELF_LIBC6)) | |
850 | flag = entry->flag; | |
851 | /* Some sanity checks to print warnings. */ | |
852 | if (opt_verbose) | |
853 | { | |
854 | if (flag == FLAG_ELF_LIBC5 && entry->flag != FLAG_ELF_LIBC5 | |
855 | && entry->flag != FLAG_ANY) | |
7b0d235c | 856 | error (0, 0, _("libc5 library %s in wrong directory"), file_name); |
591e1ffb UD |
857 | if (flag == FLAG_ELF_LIBC6 && entry->flag != FLAG_ELF_LIBC6 |
858 | && entry->flag != FLAG_ANY) | |
7b0d235c | 859 | error (0, 0, _("libc6 library %s in wrong directory"), file_name); |
591e1ffb UD |
860 | if (flag == FLAG_LIBC4 && entry->flag != FLAG_LIBC4 |
861 | && entry->flag != FLAG_ANY) | |
7b0d235c | 862 | error (0, 0, _("libc4 library %s in wrong directory"), file_name); |
591e1ffb | 863 | } |
45eca4d1 | 864 | |
591e1ffb UD |
865 | /* Add library to list. */ |
866 | for (dlib_ptr = dlibs; dlib_ptr != NULL; dlib_ptr = dlib_ptr->next) | |
867 | { | |
868 | /* Is soname already in list? */ | |
869 | if (strcmp (dlib_ptr->soname, soname) == 0) | |
870 | { | |
871 | /* Prefer a file to a link, otherwise check which one | |
872 | is newer. */ | |
873 | if ((!is_link && dlib_ptr->is_link) | |
874 | || (is_link == dlib_ptr->is_link | |
45eca4d1 | 875 | && _dl_cache_libcmp (dlib_ptr->name, direntry->d_name) < 0)) |
591e1ffb UD |
876 | { |
877 | /* It's newer - add it. */ | |
878 | /* Flag should be the same - sanity check. */ | |
879 | if (dlib_ptr->flag != flag) | |
880 | { | |
881 | if (dlib_ptr->flag == FLAG_ELF | |
882 | && (flag == FLAG_ELF_LIBC5 || flag == FLAG_ELF_LIBC6)) | |
883 | dlib_ptr->flag = flag; | |
884 | else if ((dlib_ptr->flag == FLAG_ELF_LIBC5 | |
885 | || dlib_ptr->flag == FLAG_ELF_LIBC6) | |
886 | && flag == FLAG_ELF) | |
887 | dlib_ptr->flag = flag; | |
888 | else | |
889 | error (0, 0, _("libraries %s and %s in directory %s have same soname but different type."), | |
890 | dlib_ptr->name, direntry->d_name, entry->path); | |
891 | } | |
892 | free (dlib_ptr->name); | |
b15ff9d6 | 893 | dlib_ptr->osversion = osversion; |
591e1ffb UD |
894 | dlib_ptr->name = xstrdup (direntry->d_name); |
895 | dlib_ptr->is_link = is_link; | |
896 | } | |
897 | /* Don't add this library, abort loop. */ | |
898 | /* Also free soname, since it's dynamically allocated. */ | |
899 | free (soname); | |
900 | break; | |
901 | } | |
902 | } | |
903 | /* Add the library if it's not already in. */ | |
904 | if (dlib_ptr == NULL) | |
905 | { | |
906 | dlib_ptr = (struct dlib_entry *)xmalloc (sizeof (struct dlib_entry)); | |
907 | dlib_ptr->name = xstrdup (direntry->d_name); | |
908 | dlib_ptr->flag = flag; | |
a986484f | 909 | dlib_ptr->osversion = osversion; |
591e1ffb UD |
910 | dlib_ptr->soname = soname; |
911 | dlib_ptr->is_link = is_link; | |
912 | /* Add at head of list. */ | |
913 | dlib_ptr->next = dlibs; | |
914 | dlibs = dlib_ptr; | |
915 | } | |
916 | } | |
917 | ||
918 | closedir (dir); | |
919 | ||
920 | /* Now dlibs contains a list of all libs - add those to the cache | |
921 | and created all symbolic links. */ | |
922 | for (dlib_ptr = dlibs; dlib_ptr != NULL; dlib_ptr = dlib_ptr->next) | |
923 | { | |
924 | /* Don't create links to links. */ | |
925 | if (dlib_ptr->is_link == 0) | |
b4a555d6 UD |
926 | create_links (dir_name, entry->path, dlib_ptr->name, |
927 | dlib_ptr->soname); | |
591e1ffb | 928 | if (opt_build_cache) |
a986484f UD |
929 | add_to_cache (entry->path, dlib_ptr->soname, dlib_ptr->flag, |
930 | dlib_ptr->osversion, hwcap); | |
591e1ffb UD |
931 | } |
932 | ||
933 | /* Free all resources. */ | |
45eca4d1 | 934 | while (dlibs) |
591e1ffb UD |
935 | { |
936 | dlib_ptr = dlibs; | |
937 | free (dlib_ptr->soname); | |
938 | free (dlib_ptr->name); | |
939 | dlibs = dlibs->next; | |
940 | free (dlib_ptr); | |
941 | } | |
b4a555d6 UD |
942 | |
943 | if (opt_chroot && dir_name) | |
944 | free (dir_name); | |
591e1ffb UD |
945 | } |
946 | ||
947 | /* Search through all libraries. */ | |
948 | static void | |
949 | search_dirs (void) | |
950 | { | |
951 | struct dir_entry *entry; | |
952 | ||
953 | for (entry = dir_entries; entry != NULL; entry = entry->next) | |
954 | search_dir (entry); | |
955 | ||
956 | /* Free all allocated memory. */ | |
957 | while (dir_entries) | |
958 | { | |
959 | entry = dir_entries; | |
960 | dir_entries = dir_entries->next; | |
961 | free (entry->path); | |
962 | free (entry); | |
963 | } | |
964 | } | |
965 | ||
966 | ||
8e115d80 | 967 | static void parse_conf_include (const char *config_file, unsigned int lineno, |
a334319f | 968 | bool do_chroot, const char *pattern); |
8e115d80 | 969 | |
591e1ffb UD |
970 | /* Parse configuration file. */ |
971 | static void | |
a334319f | 972 | parse_conf (const char *filename, bool do_chroot) |
591e1ffb | 973 | { |
b4a555d6 | 974 | FILE *file = NULL; |
591e1ffb | 975 | char *line = NULL; |
b4a555d6 | 976 | const char *canon; |
591e1ffb | 977 | size_t len = 0; |
8e115d80 | 978 | unsigned int lineno; |
45eca4d1 | 979 | |
8e115d80 | 980 | if (do_chroot && opt_chroot) |
b4a555d6 UD |
981 | { |
982 | canon = chroot_canon (opt_chroot, filename); | |
983 | if (canon) | |
984 | file = fopen (canon, "r"); | |
985 | else | |
986 | canon = filename; | |
987 | } | |
988 | else | |
989 | { | |
990 | canon = filename; | |
991 | file = fopen (filename, "r"); | |
992 | } | |
591e1ffb UD |
993 | |
994 | if (file == NULL) | |
995 | { | |
b4a555d6 UD |
996 | error (0, errno, _("Can't open configuration file %s"), canon); |
997 | if (canon != filename) | |
998 | free ((char *) canon); | |
591e1ffb UD |
999 | return; |
1000 | } | |
1001 | ||
c96873d7 UD |
1002 | /* No threads use this stream. */ |
1003 | __fsetlocking (file, FSETLOCKING_BYCALLER); | |
1004 | ||
b4a555d6 UD |
1005 | if (canon != filename) |
1006 | free ((char *) canon); | |
1007 | ||
8e115d80 | 1008 | lineno = 0; |
591e1ffb UD |
1009 | do |
1010 | { | |
1011 | ssize_t n = getline (&line, &len, file); | |
1012 | if (n < 0) | |
1013 | break; | |
1014 | ||
8e115d80 | 1015 | ++lineno; |
591e1ffb UD |
1016 | if (line[n - 1] == '\n') |
1017 | line[n - 1] = '\0'; | |
1018 | ||
1019 | /* Because the file format does not know any form of quoting we | |
1020 | can search forward for the next '#' character and if found | |
1021 | make it terminating the line. */ | |
1022 | *strchrnul (line, '#') = '\0'; | |
1023 | ||
69acbe9f UD |
1024 | /* Remove leading whitespace. NUL is no whitespace character. */ |
1025 | char *cp = line; | |
1026 | while (isspace (*cp)) | |
1027 | ++cp; | |
1028 | ||
591e1ffb | 1029 | /* If the line is blank it is ignored. */ |
69acbe9f | 1030 | if (cp[0] == '\0') |
591e1ffb UD |
1031 | continue; |
1032 | ||
8e115d80 RM |
1033 | if (!strncmp (cp, "include", 7) && isblank (cp[7])) |
1034 | { | |
1035 | char *dir; | |
1036 | cp += 8; | |
1037 | while ((dir = strsep (&cp, " \t")) != NULL) | |
1038 | if (dir[0] != '\0') | |
a334319f | 1039 | parse_conf_include (filename, lineno, do_chroot, dir); |
8e115d80 | 1040 | } |
ab1d521d RM |
1041 | else if (!strncasecmp (cp, "hwcap", 5) && isblank (cp[5])) |
1042 | { | |
1043 | cp += 6; | |
1044 | char *p, *name = NULL; | |
1045 | unsigned long int n = strtoul (cp, &cp, 0); | |
1046 | if (cp != NULL && isblank (*cp)) | |
1047 | while ((p = strsep (&cp, " \t")) != NULL) | |
1048 | if (p[0] != '\0') | |
1049 | { | |
1050 | if (name == NULL) | |
1051 | name = p; | |
1052 | else | |
1053 | { | |
1054 | name = NULL; | |
1055 | break; | |
1056 | } | |
1057 | } | |
1058 | if (name == NULL) | |
1059 | { | |
1060 | error (EXIT_FAILURE, 0, _("%s:%u: bad syntax in hwcap line"), | |
1061 | filename, lineno); | |
1062 | break; | |
1063 | } | |
1064 | if (n >= (64 - _DL_FIRST_EXTRA)) | |
1065 | error (EXIT_FAILURE, 0, | |
1066 | _("%s:%u: hwcap index %lu above maximum %u"), | |
1067 | filename, lineno, n, 64 - _DL_FIRST_EXTRA - 1); | |
1068 | if (hwcap_extra[n] == NULL) | |
1069 | { | |
1070 | for (unsigned long int h = 0; h < (64 - _DL_FIRST_EXTRA); ++h) | |
1071 | if (hwcap_extra[h] != NULL && !strcmp (name, hwcap_extra[h])) | |
1072 | error (EXIT_FAILURE, 0, | |
1073 | _("%s:%u: hwcap index %lu already defined as %s"), | |
1074 | filename, lineno, h, name); | |
1075 | hwcap_extra[n] = xstrdup (name); | |
1076 | } | |
1077 | else | |
1078 | { | |
1079 | if (strcmp (name, hwcap_extra[n])) | |
1080 | error (EXIT_FAILURE, 0, | |
1081 | _("%s:%u: hwcap index %lu already defined as %s"), | |
1082 | filename, lineno, n, hwcap_extra[n]); | |
1083 | if (opt_verbose) | |
1084 | error (0, 0, _("%s:%u: duplicate hwcap %lu %s"), | |
1085 | filename, lineno, n, name); | |
1086 | } | |
1087 | } | |
8e115d80 RM |
1088 | else |
1089 | add_dir (cp); | |
69acbe9f UD |
1090 | } |
1091 | while (!feof_unlocked (file)); | |
591e1ffb UD |
1092 | |
1093 | /* Free buffer and close file. */ | |
1094 | free (line); | |
1095 | fclose (file); | |
1096 | } | |
1097 | ||
8e115d80 RM |
1098 | /* Handle one word in an `include' line, a glob pattern of additional |
1099 | config files to read. */ | |
1100 | static void | |
1101 | parse_conf_include (const char *config_file, unsigned int lineno, | |
a334319f | 1102 | bool do_chroot, const char *pattern) |
8e115d80 RM |
1103 | { |
1104 | if (opt_chroot && pattern[0] != '/') | |
1105 | error (EXIT_FAILURE, 0, | |
1106 | _("need absolute file name for configuration file when using -r")); | |
1107 | ||
1108 | char *copy = NULL; | |
1109 | if (pattern[0] != '/' && strchr (config_file, '/') != NULL) | |
1110 | { | |
322861e8 UD |
1111 | if (asprintf (©, "%s/%s", dirname (strdupa (config_file)), |
1112 | pattern) < 0) | |
1113 | error (EXIT_FAILURE, 0, _("memory exhausted")); | |
8e115d80 RM |
1114 | pattern = copy; |
1115 | } | |
1116 | ||
1117 | glob64_t gl; | |
1118 | int result; | |
1119 | if (do_chroot && opt_chroot) | |
1120 | { | |
1121 | char *canon = chroot_canon (opt_chroot, pattern); | |
1122 | result = glob64 (canon ?: pattern, 0, NULL, &gl); | |
1123 | free (canon); | |
1124 | } | |
1125 | else | |
1126 | result = glob64 (pattern, 0, NULL, &gl); | |
1127 | ||
1128 | switch (result) | |
1129 | { | |
1130 | case 0: | |
1131 | for (size_t i = 0; i < gl.gl_pathc; ++i) | |
a334319f | 1132 | parse_conf (gl.gl_pathv[i], false); |
8e115d80 RM |
1133 | globfree64 (&gl); |
1134 | break; | |
1135 | ||
1136 | case GLOB_NOMATCH: | |
1137 | break; | |
1138 | ||
1139 | case GLOB_NOSPACE: | |
1140 | errno = ENOMEM; | |
1141 | case GLOB_ABORTED: | |
1142 | if (opt_verbose) | |
1143 | error (0, errno, _("%s:%u: cannot read directory %s"), | |
1144 | config_file, lineno, pattern); | |
1145 | break; | |
1146 | ||
1147 | default: | |
1148 | abort (); | |
1149 | break; | |
1150 | } | |
1151 | ||
1152 | if (copy) | |
1153 | free (copy); | |
1154 | } | |
1155 | ||
0cfbb8c6 UD |
1156 | /* Honour LD_HWCAP_MASK. */ |
1157 | static void | |
1158 | set_hwcap (void) | |
1159 | { | |
1160 | char *mask = getenv ("LD_HWCAP_MASK"); | |
1161 | ||
1162 | if (mask) | |
1163 | hwcap_mask = strtoul (mask, NULL, 0); | |
1164 | } | |
1165 | ||
591e1ffb UD |
1166 | |
1167 | int | |
1168 | main (int argc, char **argv) | |
1169 | { | |
11bf311e UD |
1170 | /* Set locale via LC_ALL. */ |
1171 | setlocale (LC_ALL, ""); | |
1172 | ||
1173 | /* Set the text message domain. */ | |
1174 | textdomain (_libc_intl_domainname); | |
45eca4d1 | 1175 | |
591e1ffb | 1176 | /* Parse and process arguments. */ |
11bf311e | 1177 | int remaining; |
591e1ffb UD |
1178 | argp_parse (&argp, argc, argv, 0, &remaining, NULL); |
1179 | ||
11bf8ce1 | 1180 | /* Remaining arguments are additional directories if opt_manual_link |
b85697f6 UD |
1181 | is not set. */ |
1182 | if (remaining != argc && !opt_manual_link) | |
591e1ffb UD |
1183 | { |
1184 | int i; | |
1185 | for (i = remaining; i < argc; ++i) | |
11bf8ce1 UD |
1186 | if (opt_build_cache && argv[i][0] != '/') |
1187 | error (EXIT_FAILURE, 0, | |
1188 | _("relative path `%s' used to build cache"), | |
1189 | argv[i]); | |
1190 | else | |
1191 | add_dir (argv[i]); | |
591e1ffb UD |
1192 | } |
1193 | ||
ab1d521d | 1194 | hwcap_extra[63 - _DL_FIRST_EXTRA] = "tls"; |
ab1d521d | 1195 | |
0cfbb8c6 UD |
1196 | set_hwcap (); |
1197 | ||
591e1ffb UD |
1198 | if (opt_chroot) |
1199 | { | |
f0189a54 | 1200 | /* Normalize the path a bit, we might need it for printing later. */ |
616d9133 | 1201 | char *endp = rawmemchr (opt_chroot, '\0'); |
b4a555d6 | 1202 | while (endp > opt_chroot && endp[-1] == '/') |
f0189a54 UD |
1203 | --endp; |
1204 | *endp = '\0'; | |
b4a555d6 UD |
1205 | if (endp == opt_chroot) |
1206 | opt_chroot = NULL; | |
f0189a54 | 1207 | |
b4a555d6 UD |
1208 | if (opt_chroot) |
1209 | { | |
1210 | /* It is faster to use chroot if we can. */ | |
1211 | if (!chroot (opt_chroot)) | |
1212 | { | |
1213 | if (chdir ("/")) | |
1214 | error (EXIT_FAILURE, errno, _("Can't chdir to /")); | |
1215 | opt_chroot = NULL; | |
1216 | } | |
1217 | } | |
1218 | } | |
1219 | ||
1220 | if (cache_file == NULL) | |
1221 | { | |
1222 | cache_file = alloca (strlen (LD_SO_CACHE) + 1); | |
1223 | strcpy (cache_file, LD_SO_CACHE); | |
591e1ffb UD |
1224 | } |
1225 | ||
b4a555d6 UD |
1226 | if (config_file == NULL) |
1227 | config_file = LD_SO_CONF; | |
1228 | ||
591e1ffb UD |
1229 | if (opt_print_cache) |
1230 | { | |
b4a555d6 UD |
1231 | if (opt_chroot) |
1232 | { | |
1233 | char *p = chroot_canon (opt_chroot, cache_file); | |
1234 | if (p == NULL) | |
1235 | error (EXIT_FAILURE, errno, _("Can't open cache file %s\n"), | |
1236 | cache_file); | |
1237 | cache_file = p; | |
1238 | } | |
591e1ffb | 1239 | print_cache (cache_file); |
b4a555d6 UD |
1240 | if (opt_chroot) |
1241 | free (cache_file); | |
591e1ffb UD |
1242 | exit (0); |
1243 | } | |
1244 | ||
b4a555d6 UD |
1245 | if (opt_chroot) |
1246 | { | |
1247 | /* Canonicalize the directory name of cache_file, not cache_file, | |
1248 | because we'll rename a temporary cache file to it. */ | |
1249 | char *p = strrchr (cache_file, '/'); | |
1250 | char *canon = chroot_canon (opt_chroot, | |
1251 | p ? (*p = '\0', cache_file) : "/"); | |
1252 | ||
1253 | if (canon == NULL) | |
1254 | { | |
1255 | error (EXIT_FAILURE, errno, | |
1256 | _("Can't open cache file directory %s\n"), | |
1257 | p ? cache_file : "/"); | |
1258 | } | |
1259 | ||
1260 | if (p) | |
1261 | ++p; | |
1262 | else | |
1263 | p = cache_file; | |
1264 | ||
1265 | cache_file = alloca (strlen (canon) + strlen (p) + 2); | |
1266 | sprintf (cache_file, "%s/%s", canon, p); | |
1267 | free (canon); | |
1268 | } | |
1269 | ||
b85697f6 UD |
1270 | if (opt_manual_link) |
1271 | { | |
1272 | /* Link all given libraries manually. */ | |
1273 | int i; | |
1274 | ||
1275 | for (i = remaining; i < argc; ++i) | |
a986484f | 1276 | manual_link (argv[i]); |
b85697f6 UD |
1277 | |
1278 | exit (0); | |
1279 | } | |
45eca4d1 UD |
1280 | |
1281 | ||
591e1ffb UD |
1282 | if (opt_build_cache) |
1283 | init_cache (); | |
1284 | ||
1285 | if (!opt_only_cline) | |
1286 | { | |
a334319f | 1287 | parse_conf (config_file, true); |
334fcf2a | 1288 | |
591e1ffb | 1289 | /* Always add the standard search paths. */ |
bd89c0b5 | 1290 | add_system_dir (SLIBDIR); |
8ca91b36 | 1291 | if (strcmp (SLIBDIR, LIBDIR)) |
bd89c0b5 | 1292 | add_system_dir (LIBDIR); |
591e1ffb | 1293 | } |
45eca4d1 | 1294 | |
591e1ffb UD |
1295 | search_dirs (); |
1296 | ||
1297 | if (opt_build_cache) | |
1298 | save_cache (cache_file); | |
1299 | ||
1300 | return 0; | |
1301 | } |