Commit | Line | Data |
---|---|---|
252b5132 RH |
1 | # This shell script emits a C file. -*- C -*- |
2 | # It does some substitutions. | |
3 | # This file is now misnamed, because it supports both 32 bit and 64 bit | |
4 | # ELF emulations. | |
5 | test -z "${ELFSIZE}" && ELFSIZE=32 | |
86af25fe L |
6 | if [ -z "$MACHINE" ]; then |
7 | OUTPUT_ARCH=${ARCH} | |
8 | else | |
9 | OUTPUT_ARCH=${ARCH}:${MACHINE} | |
10 | fi | |
92b93329 | 11 | fragment <<EOF |
252b5132 RH |
12 | /* This file is is generated by a shell script. DO NOT EDIT! */ |
13 | ||
14 | /* ${ELFSIZE} bit ELF emulation code for ${EMULATION_NAME} | |
e3dc8847 | 15 | Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
ff7a0acf | 16 | 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
252b5132 RH |
17 | Written by Steve Chamberlain <sac@cygnus.com> |
18 | ELF support by Ian Lance Taylor <ian@cygnus.com> | |
19 | ||
f96b4a7b NC |
20 | This file is part of the GNU Binutils. |
21 | ||
22 | This program is free software; you can redistribute it and/or modify | |
23 | it under the terms of the GNU General Public License as published by | |
24 | the Free Software Foundation; either version 3 of the License, or | |
25 | (at your option) any later version. | |
26 | ||
27 | This program is distributed in the hope that it will be useful, | |
28 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
29 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
30 | GNU General Public License for more details. | |
31 | ||
32 | You should have received a copy of the GNU General Public License | |
33 | along with this program; if not, write to the Free Software | |
34 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
35 | MA 02110-1301, USA. */ | |
252b5132 RH |
36 | |
37 | #define TARGET_IS_${EMULATION_NAME} | |
38 | ||
252b5132 | 39 | #include "sysdep.h" |
3db64b00 | 40 | #include "bfd.h" |
1c9acd94 | 41 | #include "libiberty.h" |
3882b010 | 42 | #include "safe-ctype.h" |
fcf65871 | 43 | #include "getopt.h" |
24382dca RM |
44 | #include "md5.h" |
45 | #include "sha1.h" | |
46 | #include <fcntl.h> | |
252b5132 RH |
47 | |
48 | #include "bfdlink.h" | |
49 | ||
50 | #include "ld.h" | |
51 | #include "ldmain.h" | |
252b5132 RH |
52 | #include "ldmisc.h" |
53 | #include "ldexp.h" | |
54 | #include "ldlang.h" | |
b71e2778 AM |
55 | #include "ldfile.h" |
56 | #include "ldemul.h" | |
df2a7313 | 57 | #include <ldgram.h> |
e0ee487b | 58 | #include "elf/common.h" |
ecca9871 | 59 | #include "elf-bfd.h" |
252b5132 | 60 | |
0c7a8e5a AM |
61 | /* Declare functions used by various EXTRA_EM_FILEs. */ |
62 | static void gld${EMULATION_NAME}_before_parse (void); | |
63 | static void gld${EMULATION_NAME}_after_open (void); | |
64 | static void gld${EMULATION_NAME}_before_allocation (void); | |
7b986e99 | 65 | static bfd_boolean gld${EMULATION_NAME}_place_orphan (asection *s); |
8ded5a0f | 66 | static void gld${EMULATION_NAME}_finish (void); |
252b5132 | 67 | |
41392f03 AM |
68 | EOF |
69 | ||
d3989512 JJ |
70 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
71 | case ${target} in | |
711c0baa | 72 | *-*-linux-* | *-*-k*bsd*-*) |
92b93329 | 73 | fragment <<EOF |
0b48acfe | 74 | #ifdef HAVE_GLOB |
d3989512 | 75 | #include <glob.h> |
0b48acfe | 76 | #endif |
d3989512 JJ |
77 | EOF |
78 | ;; | |
79 | esac | |
80 | fi | |
81 | ||
41392f03 AM |
82 | # Import any needed special functions and/or overrides. |
83 | # | |
92b93329 | 84 | source_em ${srcdir}/emultempl/elf-generic.em |
41392f03 | 85 | if test -n "$EXTRA_EM_FILE" ; then |
92b93329 | 86 | source_em ${srcdir}/emultempl/${EXTRA_EM_FILE}.em |
41392f03 AM |
87 | fi |
88 | ||
f813923c | 89 | # Functions in this file can be overridden by setting the LDEMUL_* shell |
41392f03 AM |
90 | # variables. If the name of the overriding function is the same as is |
91 | # defined in this file, then don't output this file's version. | |
92 | # If a different overriding name is given then output the standard function | |
93 | # as presumably it is called from the overriding function. | |
94 | # | |
95 | if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then | |
92b93329 | 96 | fragment <<EOF |
41392f03 | 97 | |
252b5132 | 98 | static void |
0c7a8e5a | 99 | gld${EMULATION_NAME}_before_parse (void) |
252b5132 | 100 | { |
5e2f1575 | 101 | ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); |
b34976b6 AM |
102 | config.dynamic_link = ${DYNAMIC_LINK-TRUE}; |
103 | config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`; | |
252b5132 RH |
104 | } |
105 | ||
41392f03 AM |
106 | EOF |
107 | fi | |
108 | ||
4a43e768 | 109 | if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then |
92b93329 | 110 | fragment <<EOF |
4a43e768 AM |
111 | /* Handle as_needed DT_NEEDED. */ |
112 | ||
113 | static bfd_boolean | |
114 | gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry) | |
115 | { | |
e56f61be | 116 | int class = 0; |
4a43e768 AM |
117 | |
118 | /* Tell the ELF linker that we don't want the output file to have a | |
119 | DT_NEEDED entry for this file, unless it is used to resolve | |
120 | references in a regular object. */ | |
e56f61be L |
121 | if (entry->as_needed) |
122 | class = DYN_AS_NEEDED; | |
123 | ||
124 | /* Tell the ELF linker that we don't want the output file to have a | |
125 | DT_NEEDED entry for any dynamic library in DT_NEEDED tags from | |
126 | this file at all. */ | |
127 | if (!entry->add_needed) | |
128 | class |= DYN_NO_ADD_NEEDED; | |
129 | ||
12b9ff6c L |
130 | if (entry->just_syms_flag |
131 | && (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) != 0) | |
132 | einfo (_("%P%F: --just-symbols may not be used on DSO: %B\n"), | |
133 | entry->the_bfd); | |
134 | ||
e56f61be L |
135 | if (!class |
136 | || (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0) | |
137 | return FALSE; | |
138 | ||
139 | bfd_elf_set_dyn_lib_class (entry->the_bfd, class); | |
4a43e768 AM |
140 | |
141 | /* Continue on with normal load_symbols processing. */ | |
142 | return FALSE; | |
143 | } | |
144 | EOF | |
145 | fi | |
146 | ||
92b93329 | 147 | fragment <<EOF |
252b5132 RH |
148 | |
149 | /* These variables are required to pass information back and forth | |
150 | between after_open and check_needed and stat_needed and vercheck. */ | |
151 | ||
152 | static struct bfd_link_needed_list *global_needed; | |
153 | static struct stat global_stat; | |
e13629bc | 154 | static lang_input_statement_type *global_found; |
252b5132 | 155 | static struct bfd_link_needed_list *global_vercheck_needed; |
b34976b6 | 156 | static bfd_boolean global_vercheck_failed; |
252b5132 | 157 | |
252b5132 | 158 | |
04925e1e AM |
159 | /* On Linux, it's possible to have different versions of the same |
160 | shared library linked against different versions of libc. The | |
161 | dynamic linker somehow tags which libc version to use in | |
162 | /etc/ld.so.cache, and, based on the libc that it sees in the | |
163 | executable, chooses which version of the shared library to use. | |
252b5132 | 164 | |
04925e1e AM |
165 | We try to do a similar check here by checking whether this shared |
166 | library needs any other shared libraries which may conflict with | |
167 | libraries we have already included in the link. If it does, we | |
168 | skip it, and try to find another shared library farther on down the | |
169 | link path. | |
252b5132 | 170 | |
04925e1e AM |
171 | This is called via lang_for_each_input_file. |
172 | GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object | |
f813923c | 173 | which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find |
04925e1e | 174 | a conflicting version. */ |
252b5132 | 175 | |
04925e1e | 176 | static void |
0c7a8e5a | 177 | gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s) |
04925e1e | 178 | { |
1c9acd94 | 179 | const char *soname; |
04925e1e | 180 | struct bfd_link_needed_list *l; |
252b5132 | 181 | |
04925e1e AM |
182 | if (global_vercheck_failed) |
183 | return; | |
184 | if (s->the_bfd == NULL | |
185 | || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0) | |
186 | return; | |
252b5132 | 187 | |
04925e1e AM |
188 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
189 | if (soname == NULL) | |
fed2999d | 190 | soname = lbasename (bfd_get_filename (s->the_bfd)); |
04925e1e AM |
191 | |
192 | for (l = global_vercheck_needed; l != NULL; l = l->next) | |
193 | { | |
194 | const char *suffix; | |
195 | ||
1c9acd94 | 196 | if (strcmp (soname, l->name) == 0) |
04925e1e AM |
197 | { |
198 | /* Probably can't happen, but it's an easy check. */ | |
199 | continue; | |
252b5132 RH |
200 | } |
201 | ||
04925e1e | 202 | if (strchr (l->name, '/') != NULL) |
252b5132 RH |
203 | continue; |
204 | ||
04925e1e AM |
205 | suffix = strstr (l->name, ".so."); |
206 | if (suffix == NULL) | |
207 | continue; | |
208 | ||
209 | suffix += sizeof ".so." - 1; | |
210 | ||
1c9acd94 | 211 | if (strncmp (soname, l->name, suffix - l->name) == 0) |
04925e1e AM |
212 | { |
213 | /* Here we know that S is a dynamic object FOO.SO.VER1, and | |
0c7a8e5a AM |
214 | the object we are considering needs a dynamic object |
215 | FOO.SO.VER2, and VER1 and VER2 are different. This | |
216 | appears to be a version mismatch, so we tell the caller | |
217 | to try a different version of this library. */ | |
b34976b6 | 218 | global_vercheck_failed = TRUE; |
04925e1e AM |
219 | return; |
220 | } | |
252b5132 RH |
221 | } |
222 | } | |
223 | ||
252b5132 | 224 | |
04925e1e AM |
225 | /* See if an input file matches a DT_NEEDED entry by running stat on |
226 | the file. */ | |
227 | ||
228 | static void | |
0c7a8e5a | 229 | gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s) |
252b5132 | 230 | { |
04925e1e AM |
231 | struct stat st; |
232 | const char *suffix; | |
233 | const char *soname; | |
252b5132 | 234 | |
e13629bc | 235 | if (global_found != NULL) |
04925e1e AM |
236 | return; |
237 | if (s->the_bfd == NULL) | |
238 | return; | |
e13629bc AM |
239 | |
240 | /* If this input file was an as-needed entry, and wasn't found to be | |
241 | needed at the stage it was linked, then don't say we have loaded it. */ | |
242 | if ((bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0) | |
7cedef86 | 243 | return; |
04925e1e AM |
244 | |
245 | if (bfd_stat (s->the_bfd, &st) != 0) | |
252b5132 | 246 | { |
04925e1e AM |
247 | einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd); |
248 | return; | |
249 | } | |
252b5132 | 250 | |
9eabd475 ZW |
251 | /* Some operating systems, e.g. Windows, do not provide a meaningful |
252 | st_ino; they always set it to zero. (Windows does provide a | |
253 | meaningful st_dev.) Do not indicate a duplicate library in that | |
254 | case. While there is no guarantee that a system that provides | |
255 | meaningful inode numbers will never set st_ino to zero, this is | |
256 | merely an optimization, so we do not need to worry about false | |
257 | negatives. */ | |
04925e1e | 258 | if (st.st_dev == global_stat.st_dev |
9eabd475 ZW |
259 | && st.st_ino == global_stat.st_ino |
260 | && st.st_ino != 0) | |
04925e1e | 261 | { |
e13629bc | 262 | global_found = s; |
04925e1e AM |
263 | return; |
264 | } | |
252b5132 | 265 | |
04925e1e AM |
266 | /* We issue a warning if it looks like we are including two |
267 | different versions of the same shared library. For example, | |
268 | there may be a problem if -lc picks up libc.so.6 but some other | |
269 | shared library has a DT_NEEDED entry of libc.so.5. This is a | |
f813923c | 270 | heuristic test, and it will only work if the name looks like |
04925e1e AM |
271 | NAME.so.VERSION. FIXME: Depending on file names is error-prone. |
272 | If we really want to issue warnings about mixing version numbers | |
273 | of shared libraries, we need to find a better way. */ | |
252b5132 | 274 | |
04925e1e AM |
275 | if (strchr (global_needed->name, '/') != NULL) |
276 | return; | |
277 | suffix = strstr (global_needed->name, ".so."); | |
278 | if (suffix == NULL) | |
279 | return; | |
280 | suffix += sizeof ".so." - 1; | |
252b5132 | 281 | |
04925e1e AM |
282 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
283 | if (soname == NULL) | |
fed2999d | 284 | soname = lbasename (s->filename); |
252b5132 | 285 | |
cde43e70 | 286 | if (strncmp (soname, global_needed->name, suffix - global_needed->name) == 0) |
04925e1e | 287 | einfo ("%P: warning: %s, needed by %B, may conflict with %s\n", |
1c9acd94 | 288 | global_needed->name, global_needed->by, soname); |
252b5132 RH |
289 | } |
290 | ||
e56f61be L |
291 | struct dt_needed |
292 | { | |
293 | bfd *by; | |
294 | const char *name; | |
295 | }; | |
04925e1e | 296 | |
252b5132 RH |
297 | /* This function is called for each possible name for a dynamic object |
298 | named by a DT_NEEDED entry. The FORCE parameter indicates whether | |
299 | to skip the check for a conflicting version. */ | |
300 | ||
b34976b6 | 301 | static bfd_boolean |
e56f61be L |
302 | gld${EMULATION_NAME}_try_needed (struct dt_needed *needed, |
303 | int force) | |
252b5132 RH |
304 | { |
305 | bfd *abfd; | |
e56f61be | 306 | const char *name = needed->name; |
ec4eb78a | 307 | const char *soname; |
e56f61be | 308 | int class; |
252b5132 | 309 | |
f13a99db | 310 | abfd = bfd_openr (name, bfd_get_target (link_info.output_bfd)); |
252b5132 | 311 | if (abfd == NULL) |
b34976b6 | 312 | return FALSE; |
252b5132 RH |
313 | if (! bfd_check_format (abfd, bfd_object)) |
314 | { | |
cde43e70 | 315 | bfd_close (abfd); |
b34976b6 | 316 | return FALSE; |
252b5132 RH |
317 | } |
318 | if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0) | |
319 | { | |
cde43e70 | 320 | bfd_close (abfd); |
b34976b6 | 321 | return FALSE; |
252b5132 RH |
322 | } |
323 | ||
c4bb8067 | 324 | /* For DT_NEEDED, they have to match. */ |
f13a99db | 325 | if (abfd->xvec != link_info.output_bfd->xvec) |
c4bb8067 L |
326 | { |
327 | bfd_close (abfd); | |
b34976b6 | 328 | return FALSE; |
c4bb8067 L |
329 | } |
330 | ||
252b5132 RH |
331 | /* Check whether this object would include any conflicting library |
332 | versions. If FORCE is set, then we skip this check; we use this | |
333 | the second time around, if we couldn't find any compatible | |
334 | instance of the shared library. */ | |
335 | ||
336 | if (! force) | |
337 | { | |
338 | struct bfd_link_needed_list *needed; | |
339 | ||
340 | if (! bfd_elf_get_bfd_needed_list (abfd, &needed)) | |
341 | einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd); | |
342 | ||
343 | if (needed != NULL) | |
344 | { | |
345 | global_vercheck_needed = needed; | |
b34976b6 | 346 | global_vercheck_failed = FALSE; |
252b5132 RH |
347 | lang_for_each_input_file (gld${EMULATION_NAME}_vercheck); |
348 | if (global_vercheck_failed) | |
349 | { | |
cde43e70 | 350 | bfd_close (abfd); |
b34976b6 | 351 | /* Return FALSE to force the caller to move on to try |
0c7a8e5a | 352 | another file on the search path. */ |
b34976b6 | 353 | return FALSE; |
252b5132 RH |
354 | } |
355 | ||
356 | /* But wait! It gets much worse. On Linux, if a shared | |
0c7a8e5a AM |
357 | library does not use libc at all, we are supposed to skip |
358 | it the first time around in case we encounter a shared | |
359 | library later on with the same name which does use the | |
360 | version of libc that we want. This is much too horrible | |
361 | to use on any system other than Linux. */ | |
252b5132 RH |
362 | |
363 | EOF | |
364 | case ${target} in | |
711c0baa | 365 | *-*-linux-* | *-*-k*bsd*-*) |
92b93329 | 366 | fragment <<EOF |
252b5132 RH |
367 | { |
368 | struct bfd_link_needed_list *l; | |
369 | ||
370 | for (l = needed; l != NULL; l = l->next) | |
0112cd26 | 371 | if (CONST_STRNEQ (l->name, "libc.so")) |
252b5132 RH |
372 | break; |
373 | if (l == NULL) | |
374 | { | |
cde43e70 | 375 | bfd_close (abfd); |
b34976b6 | 376 | return FALSE; |
252b5132 RH |
377 | } |
378 | } | |
379 | ||
380 | EOF | |
381 | ;; | |
382 | esac | |
92b93329 | 383 | fragment <<EOF |
252b5132 RH |
384 | } |
385 | } | |
386 | ||
387 | /* We've found a dynamic object matching the DT_NEEDED entry. */ | |
388 | ||
04925e1e AM |
389 | /* We have already checked that there is no other input file of the |
390 | same name. We must now check again that we are not including the | |
391 | same file twice. We need to do this because on many systems | |
392 | libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will | |
393 | reference libc.so.1. If we have already included libc.so, we | |
394 | don't want to include libc.so.1 if they are the same file, and we | |
395 | can only check that using stat. */ | |
396 | ||
397 | if (bfd_stat (abfd, &global_stat) != 0) | |
398 | einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd); | |
ec4eb78a L |
399 | |
400 | /* First strip off everything before the last '/'. */ | |
fed2999d | 401 | soname = lbasename (abfd->filename); |
ec4eb78a L |
402 | |
403 | if (trace_file_tries) | |
404 | info_msg (_("found %s at %s\n"), soname, name); | |
405 | ||
e13629bc | 406 | global_found = NULL; |
04925e1e | 407 | lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed); |
e13629bc | 408 | if (global_found != NULL) |
04925e1e | 409 | { |
b34976b6 | 410 | /* Return TRUE to indicate that we found the file, even though |
0c7a8e5a | 411 | we aren't going to do anything with it. */ |
b34976b6 | 412 | return TRUE; |
04925e1e AM |
413 | } |
414 | ||
4a43e768 AM |
415 | /* Specify the soname to use. */ |
416 | bfd_elf_set_dt_needed_name (abfd, soname); | |
04925e1e | 417 | |
4a43e768 AM |
418 | /* Tell the ELF linker that we don't want the output file to have a |
419 | DT_NEEDED entry for this file, unless it is used to resolve | |
420 | references in a regular object. */ | |
e56f61be L |
421 | class = DYN_DT_NEEDED; |
422 | ||
423 | /* Tell the ELF linker that we don't want the output file to have a | |
424 | DT_NEEDED entry for this file at all if the entry is from a file | |
425 | with DYN_NO_ADD_NEEDED. */ | |
7e9f0867 AM |
426 | if (needed->by != NULL |
427 | && (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0) | |
e56f61be L |
428 | class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED; |
429 | ||
430 | bfd_elf_set_dyn_lib_class (abfd, class); | |
04925e1e AM |
431 | |
432 | /* Add this file into the symbol table. */ | |
433 | if (! bfd_link_add_symbols (abfd, &link_info)) | |
434 | einfo ("%F%B: could not read symbols: %E\n", abfd); | |
435 | ||
b34976b6 | 436 | return TRUE; |
04925e1e AM |
437 | } |
438 | ||
439 | ||
440 | /* Search for a needed file in a path. */ | |
441 | ||
b34976b6 | 442 | static bfd_boolean |
e56f61be L |
443 | gld${EMULATION_NAME}_search_needed (const char *path, |
444 | struct dt_needed *n, int force) | |
04925e1e AM |
445 | { |
446 | const char *s; | |
e56f61be | 447 | const char *name = n->name; |
04925e1e | 448 | size_t len; |
e56f61be | 449 | struct dt_needed needed; |
04925e1e | 450 | |
cc5ce052 | 451 | if (name[0] == '/') |
e56f61be | 452 | return gld${EMULATION_NAME}_try_needed (n, force); |
cc5ce052 | 453 | |
04925e1e | 454 | if (path == NULL || *path == '\0') |
b34976b6 | 455 | return FALSE; |
e56f61be L |
456 | |
457 | needed.by = n->by; | |
458 | needed.name = n->name; | |
459 | ||
04925e1e AM |
460 | len = strlen (name); |
461 | while (1) | |
462 | { | |
463 | char *filename, *sset; | |
464 | ||
c76308d2 | 465 | s = strchr (path, config.rpath_separator); |
04925e1e AM |
466 | if (s == NULL) |
467 | s = path + strlen (path); | |
468 | ||
469 | filename = (char *) xmalloc (s - path + len + 2); | |
470 | if (s == path) | |
471 | sset = filename; | |
472 | else | |
473 | { | |
474 | memcpy (filename, path, s - path); | |
475 | filename[s - path] = '/'; | |
476 | sset = filename + (s - path) + 1; | |
477 | } | |
478 | strcpy (sset, name); | |
479 | ||
e56f61be L |
480 | needed.name = filename; |
481 | if (gld${EMULATION_NAME}_try_needed (&needed, force)) | |
b34976b6 | 482 | return TRUE; |
04925e1e AM |
483 | |
484 | free (filename); | |
485 | ||
486 | if (*s == '\0') | |
487 | break; | |
488 | path = s + 1; | |
489 | } | |
490 | ||
b34976b6 | 491 | return FALSE; |
04925e1e AM |
492 | } |
493 | ||
494 | EOF | |
9c8ebd6a | 495 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
92b93329 | 496 | fragment <<EOF |
9c8ebd6a | 497 | |
c76308d2 RS |
498 | /* Add the sysroot to every entry in a path separated by |
499 | config.rpath_separator. */ | |
9c8ebd6a DJ |
500 | |
501 | static char * | |
0c7a8e5a | 502 | gld${EMULATION_NAME}_add_sysroot (const char *path) |
9c8ebd6a DJ |
503 | { |
504 | int len, colons, i; | |
505 | char *ret, *p; | |
506 | ||
507 | len = strlen (path); | |
508 | colons = 0; | |
509 | i = 0; | |
510 | while (path[i]) | |
c76308d2 | 511 | if (path[i++] == config.rpath_separator) |
9c8ebd6a DJ |
512 | colons++; |
513 | ||
514 | if (path[i]) | |
515 | colons++; | |
516 | ||
42644a89 | 517 | len = len + (colons + 1) * strlen (ld_sysroot); |
9c8ebd6a DJ |
518 | ret = xmalloc (len + 1); |
519 | strcpy (ret, ld_sysroot); | |
520 | p = ret + strlen (ret); | |
521 | i = 0; | |
522 | while (path[i]) | |
c76308d2 | 523 | if (path[i] == config.rpath_separator) |
9c8ebd6a | 524 | { |
0c7a8e5a | 525 | *p++ = path[i++]; |
9c8ebd6a DJ |
526 | strcpy (p, ld_sysroot); |
527 | p = p + strlen (p); | |
9c8ebd6a DJ |
528 | } |
529 | else | |
530 | *p++ = path[i++]; | |
531 | ||
532 | *p = 0; | |
533 | return ret; | |
534 | } | |
04925e1e | 535 | |
3dc16cab DJ |
536 | EOF |
537 | case ${target} in | |
ebe1fac1 | 538 | *-*-freebsd* | *-*-dragonfly*) |
92b93329 | 539 | fragment <<EOF |
ebe1fac1 NC |
540 | /* Read the system search path the FreeBSD way rather than the Linux way. */ |
541 | #ifdef HAVE_ELF_HINTS_H | |
542 | #include <elf-hints.h> | |
543 | #else | |
544 | #include "elf-hints-local.h" | |
545 | #endif | |
546 | ||
547 | static bfd_boolean | |
548 | gld${EMULATION_NAME}_check_ld_elf_hints (const char *name, int force) | |
549 | { | |
550 | static bfd_boolean initialized; | |
551 | static char *ld_elf_hints; | |
552 | struct dt_needed needed; | |
553 | ||
554 | if (!initialized) | |
555 | { | |
556 | FILE *f; | |
557 | char *tmppath; | |
558 | ||
ff7a0acf | 559 | tmppath = concat (ld_sysroot, _PATH_ELF_HINTS, (const char *) NULL); |
ebe1fac1 NC |
560 | f = fopen (tmppath, FOPEN_RB); |
561 | free (tmppath); | |
562 | if (f != NULL) | |
563 | { | |
564 | struct elfhints_hdr hdr; | |
565 | ||
566 | if (fread (&hdr, 1, sizeof (hdr), f) == sizeof (hdr) | |
567 | && hdr.magic == ELFHINTS_MAGIC | |
568 | && hdr.version == 1) | |
569 | { | |
570 | if (fseek (f, hdr.strtab + hdr.dirlist, SEEK_SET) != -1) | |
571 | { | |
572 | char *b; | |
573 | ||
574 | b = xmalloc (hdr.dirlistlen + 1); | |
575 | if (fread (b, 1, hdr.dirlistlen + 1, f) == | |
576 | hdr.dirlistlen + 1) | |
577 | ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b); | |
e13629bc | 578 | |
ebe1fac1 NC |
579 | free (b); |
580 | } | |
581 | } | |
582 | fclose (f); | |
583 | } | |
584 | ||
585 | initialized = TRUE; | |
586 | } | |
587 | ||
588 | if (ld_elf_hints == NULL) | |
589 | return FALSE; | |
590 | ||
591 | needed.by = NULL; | |
592 | needed.name = name; | |
593 | return gld${EMULATION_NAME}_search_needed (ld_elf_hints, & needed, | |
e13629bc | 594 | force); |
ebe1fac1 NC |
595 | } |
596 | EOF | |
597 | # FreeBSD | |
598 | ;; | |
599 | ||
711c0baa | 600 | *-*-linux-* | *-*-k*bsd*-*) |
92b93329 | 601 | fragment <<EOF |
04925e1e AM |
602 | /* For a native linker, check the file /etc/ld.so.conf for directories |
603 | in which we may find shared libraries. /etc/ld.so.conf is really | |
482e8b32 | 604 | only meaningful on Linux. */ |
04925e1e | 605 | |
d3989512 | 606 | struct gld${EMULATION_NAME}_ld_so_conf |
04925e1e | 607 | { |
d3989512 JJ |
608 | char *path; |
609 | size_t len, alloc; | |
610 | }; | |
04925e1e | 611 | |
dfcffada | 612 | static bfd_boolean |
d3989512 JJ |
613 | gld${EMULATION_NAME}_parse_ld_so_conf |
614 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename); | |
615 | ||
616 | static void | |
617 | gld${EMULATION_NAME}_parse_ld_so_conf_include | |
618 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename, | |
619 | const char *pattern) | |
620 | { | |
621 | char *newp = NULL; | |
0b48acfe | 622 | #ifdef HAVE_GLOB |
d3989512 | 623 | glob_t gl; |
0b48acfe | 624 | #endif |
d3989512 JJ |
625 | |
626 | if (pattern[0] != '/') | |
04925e1e | 627 | { |
d3989512 JJ |
628 | char *p = strrchr (filename, '/'); |
629 | size_t patlen = strlen (pattern) + 1; | |
04925e1e | 630 | |
d3989512 JJ |
631 | newp = xmalloc (p - filename + 1 + patlen); |
632 | memcpy (newp, filename, p - filename + 1); | |
633 | memcpy (newp + (p - filename + 1), pattern, patlen); | |
634 | pattern = newp; | |
635 | } | |
04925e1e | 636 | |
0b48acfe | 637 | #ifdef HAVE_GLOB |
d3989512 JJ |
638 | if (glob (pattern, 0, NULL, &gl) == 0) |
639 | { | |
640 | size_t i; | |
641 | ||
642 | for (i = 0; i < gl.gl_pathc; ++i) | |
643 | gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]); | |
644 | globfree (&gl); | |
645 | } | |
0b48acfe MM |
646 | #else |
647 | /* If we do not have glob, treat the pattern as a literal filename. */ | |
648 | gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern); | |
649 | #endif | |
d3989512 JJ |
650 | |
651 | if (newp) | |
652 | free (newp); | |
653 | } | |
654 | ||
dfcffada | 655 | static bfd_boolean |
d3989512 JJ |
656 | gld${EMULATION_NAME}_parse_ld_so_conf |
657 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename) | |
658 | { | |
659 | FILE *f = fopen (filename, FOPEN_RT); | |
563f4125 JJ |
660 | char *line; |
661 | size_t linelen; | |
d3989512 JJ |
662 | |
663 | if (f == NULL) | |
dfcffada | 664 | return FALSE; |
d3989512 | 665 | |
563f4125 JJ |
666 | linelen = 256; |
667 | line = xmalloc (linelen); | |
668 | do | |
d3989512 | 669 | { |
563f4125 JJ |
670 | char *p = line, *q; |
671 | ||
672 | /* Normally this would use getline(3), but we need to be portable. */ | |
673 | while ((q = fgets (p, linelen - (p - line), f)) != NULL | |
674 | && strlen (q) == linelen - (p - line) - 1 | |
675 | && line[linelen - 2] != '\n') | |
676 | { | |
677 | line = xrealloc (line, 2 * linelen); | |
678 | p = line + linelen - 1; | |
679 | linelen += linelen; | |
680 | } | |
681 | ||
682 | if (q == NULL && p == line) | |
683 | break; | |
d3989512 JJ |
684 | |
685 | p = strchr (line, '\n'); | |
686 | if (p) | |
687 | *p = '\0'; | |
688 | ||
689 | /* Because the file format does not know any form of quoting we | |
690 | can search forward for the next '#' character and if found | |
691 | make it terminating the line. */ | |
692 | p = strchr (line, '#'); | |
693 | if (p) | |
694 | *p = '\0'; | |
695 | ||
696 | /* Remove leading whitespace. NUL is no whitespace character. */ | |
697 | p = line; | |
698 | while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v') | |
699 | ++p; | |
700 | ||
701 | /* If the line is blank it is ignored. */ | |
702 | if (p[0] == '\0') | |
703 | continue; | |
04925e1e | 704 | |
0112cd26 | 705 | if (CONST_STRNEQ (p, "include") && (p[7] == ' ' || p[7] == '\t')) |
d3989512 JJ |
706 | { |
707 | char *dir, c; | |
708 | p += 8; | |
709 | do | |
04925e1e | 710 | { |
d3989512 JJ |
711 | while (*p == ' ' || *p == '\t') |
712 | ++p; | |
04925e1e | 713 | |
d3989512 JJ |
714 | if (*p == '\0') |
715 | break; | |
252b5132 | 716 | |
d3989512 JJ |
717 | dir = p; |
718 | ||
719 | while (*p != ' ' && *p != '\t' && *p) | |
720 | ++p; | |
721 | ||
722 | c = *p; | |
723 | *p++ = '\0'; | |
724 | if (dir[0] != '\0') | |
725 | gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename, | |
726 | dir); | |
727 | } | |
728 | while (c != '\0'); | |
729 | } | |
730 | else | |
731 | { | |
732 | char *dir = p; | |
733 | while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f' | |
734 | && *p != '\r' && *p != '\v') | |
735 | ++p; | |
736 | ||
737 | while (p != dir && p[-1] == '/') | |
738 | --p; | |
739 | if (info->path == NULL) | |
740 | { | |
741 | info->alloc = p - dir + 1 + 256; | |
742 | info->path = xmalloc (info->alloc); | |
743 | info->len = 0; | |
744 | } | |
04925e1e AM |
745 | else |
746 | { | |
d3989512 JJ |
747 | if (info->len + 1 + (p - dir) >= info->alloc) |
748 | { | |
749 | info->alloc += p - dir + 256; | |
750 | info->path = xrealloc (info->path, info->alloc); | |
751 | } | |
c76308d2 | 752 | info->path[info->len++] = config.rpath_separator; |
04925e1e | 753 | } |
d3989512 JJ |
754 | memcpy (info->path + info->len, dir, p - dir); |
755 | info->len += p - dir; | |
756 | info->path[info->len] = '\0'; | |
757 | } | |
758 | } | |
563f4125 | 759 | while (! feof (f)); |
d3989512 JJ |
760 | free (line); |
761 | fclose (f); | |
dfcffada | 762 | return TRUE; |
d3989512 | 763 | } |
252b5132 | 764 | |
d3989512 JJ |
765 | static bfd_boolean |
766 | gld${EMULATION_NAME}_check_ld_so_conf (const char *name, int force) | |
767 | { | |
768 | static bfd_boolean initialized; | |
769 | static char *ld_so_conf; | |
770 | struct dt_needed needed; | |
252b5132 | 771 | |
d3989512 JJ |
772 | if (! initialized) |
773 | { | |
774 | char *tmppath; | |
775 | struct gld${EMULATION_NAME}_ld_so_conf info; | |
9c8ebd6a | 776 | |
d3989512 JJ |
777 | info.path = NULL; |
778 | info.len = info.alloc = 0; | |
ff7a0acf AM |
779 | tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf", |
780 | (const char *) NULL); | |
dfcffada AM |
781 | if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath)) |
782 | { | |
783 | free (tmppath); | |
ff7a0acf AM |
784 | tmppath = concat (ld_sysroot, "/etc/ld.so.conf", |
785 | (const char *) NULL); | |
dfcffada AM |
786 | gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath); |
787 | } | |
d3989512 | 788 | free (tmppath); |
dfcffada | 789 | |
d3989512 JJ |
790 | if (info.path) |
791 | { | |
792 | char *d = gld${EMULATION_NAME}_add_sysroot (info.path); | |
793 | free (info.path); | |
794 | ld_so_conf = d; | |
04925e1e | 795 | } |
b34976b6 | 796 | initialized = TRUE; |
04925e1e | 797 | } |
49e56c49 | 798 | |
04925e1e | 799 | if (ld_so_conf == NULL) |
b34976b6 | 800 | return FALSE; |
252b5132 | 801 | |
e56f61be L |
802 | |
803 | needed.by = NULL; | |
804 | needed.name = name; | |
805 | return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force); | |
252b5132 RH |
806 | } |
807 | ||
04925e1e | 808 | EOF |
9c8ebd6a DJ |
809 | # Linux |
810 | ;; | |
04925e1e AM |
811 | esac |
812 | fi | |
92b93329 | 813 | fragment <<EOF |
04925e1e | 814 | |
252b5132 RH |
815 | /* See if an input file matches a DT_NEEDED entry by name. */ |
816 | ||
817 | static void | |
0c7a8e5a | 818 | gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s) |
252b5132 | 819 | { |
e13629bc AM |
820 | const char *soname; |
821 | ||
822 | /* Stop looking if we've found a loaded lib. */ | |
823 | if (global_found != NULL | |
824 | && (bfd_elf_get_dyn_lib_class (global_found->the_bfd) | |
825 | & DYN_AS_NEEDED) == 0) | |
252b5132 RH |
826 | return; |
827 | ||
e13629bc AM |
828 | if (s->filename == NULL || s->the_bfd == NULL) |
829 | return; | |
830 | ||
831 | /* Don't look for a second non-loaded as-needed lib. */ | |
832 | if (global_found != NULL | |
833 | && (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0) | |
7cedef86 AM |
834 | return; |
835 | ||
e13629bc | 836 | if (strcmp (s->filename, global_needed->name) == 0) |
252b5132 | 837 | { |
e13629bc AM |
838 | global_found = s; |
839 | return; | |
840 | } | |
577a0623 | 841 | |
e13629bc AM |
842 | if (s->search_dirs_flag) |
843 | { | |
844 | const char *f = strrchr (s->filename, '/'); | |
845 | if (f != NULL | |
846 | && strcmp (f + 1, global_needed->name) == 0) | |
577a0623 | 847 | { |
e13629bc | 848 | global_found = s; |
577a0623 AM |
849 | return; |
850 | } | |
252b5132 RH |
851 | } |
852 | ||
e13629bc AM |
853 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
854 | if (soname != NULL | |
855 | && strcmp (soname, global_needed->name) == 0) | |
252b5132 | 856 | { |
e13629bc AM |
857 | global_found = s; |
858 | return; | |
252b5132 | 859 | } |
252b5132 RH |
860 | } |
861 | ||
41392f03 AM |
862 | EOF |
863 | ||
864 | if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then | |
92b93329 | 865 | fragment <<EOF |
04925e1e | 866 | |
24382dca RM |
867 | static bfd_size_type |
868 | gld${EMULATION_NAME}_id_note_section_size (bfd *abfd, | |
869 | struct bfd_link_info *link_info) | |
870 | { | |
871 | const char *style = link_info->emit_note_gnu_build_id; | |
872 | bfd_size_type size; | |
873 | ||
874 | abfd = abfd; | |
875 | ||
876 | size = offsetof (Elf_External_Note, name[sizeof "GNU"]); | |
877 | size = (size + 3) & -(bfd_size_type) 4; | |
878 | ||
879 | if (!strcmp (style, "md5") || !strcmp (style, "uuid")) | |
880 | size += 128 / 8; | |
881 | else if (!strcmp (style, "sha1")) | |
882 | size += 160 / 8; | |
883 | else if (!strncmp (style, "0x", 2)) | |
884 | { | |
885 | /* ID is in string form (hex). Convert to bits. */ | |
886 | const char *id = style + 2; | |
887 | do | |
888 | { | |
889 | if (ISXDIGIT (id[0]) && ISXDIGIT (id[1])) | |
890 | { | |
891 | ++size; | |
892 | id += 2; | |
893 | } | |
894 | else if (*id == '-' || *id == ':') | |
895 | ++id; | |
896 | else | |
897 | { | |
898 | size = 0; | |
899 | break; | |
900 | } | |
901 | } while (*id != '\0'); | |
902 | } | |
903 | else | |
904 | size = 0; | |
905 | ||
906 | return size; | |
907 | } | |
908 | ||
909 | static unsigned char | |
910 | read_hex (const char xdigit) | |
911 | { | |
912 | if (ISDIGIT (xdigit)) | |
913 | return xdigit - '0'; | |
914 | if (ISUPPER (xdigit)) | |
915 | return xdigit - 'A' + 0xa; | |
916 | if (ISLOWER (xdigit)) | |
917 | return xdigit - 'a' + 0xa; | |
918 | abort (); | |
919 | return 0; | |
920 | } | |
921 | ||
922 | struct build_id_info | |
923 | { | |
924 | const char *style; | |
925 | asection *sec; | |
926 | }; | |
927 | ||
928 | static bfd_boolean | |
929 | gld${EMULATION_NAME}_write_build_id_section (bfd *abfd) | |
930 | { | |
931 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
932 | struct build_id_info *info = | |
933 | elf_tdata (abfd)->after_write_object_contents_info; | |
934 | asection *asec; | |
935 | Elf_Internal_Shdr *i_shdr; | |
936 | unsigned char *contents, *id_bits; | |
937 | bfd_size_type size; | |
938 | Elf_External_Note *e_note; | |
939 | ||
940 | asec = info->sec; | |
83e4970b | 941 | if (bfd_is_abs_section (asec->output_section)) |
24382dca | 942 | { |
83e4970b AM |
943 | einfo (_("%P: warning: .note.gnu.build-id section discarded," |
944 | " --build-id ignored.\n")); | |
945 | return TRUE; | |
24382dca RM |
946 | } |
947 | i_shdr = &elf_section_data (asec->output_section)->this_hdr; | |
948 | ||
949 | if (i_shdr->contents == NULL) | |
950 | { | |
b2ff8454 RM |
951 | if (asec->contents == NULL) |
952 | asec->contents = xmalloc (asec->size); | |
953 | contents = asec->contents; | |
24382dca | 954 | } |
b2ff8454 RM |
955 | else |
956 | contents = i_shdr->contents + asec->output_offset; | |
24382dca RM |
957 | |
958 | e_note = (void *) contents; | |
959 | size = offsetof (Elf_External_Note, name[sizeof "GNU"]); | |
960 | size = (size + 3) & -(bfd_size_type) 4; | |
961 | id_bits = contents + size; | |
962 | size = asec->size - size; | |
963 | ||
964 | bfd_h_put_32 (abfd, sizeof "GNU", &e_note->namesz); | |
965 | bfd_h_put_32 (abfd, size, &e_note->descsz); | |
966 | bfd_h_put_32 (abfd, NT_GNU_BUILD_ID, &e_note->type); | |
967 | memcpy (e_note->name, "GNU", sizeof "GNU"); | |
968 | ||
969 | if (!strcmp (info->style, "md5")) | |
970 | { | |
971 | struct md5_ctx ctx; | |
972 | md5_init_ctx (&ctx); | |
973 | if (bed->s->checksum_contents (abfd, | |
974 | (void (*) (const void *, size_t, void *)) | |
975 | &md5_process_bytes, | |
976 | &ctx)) | |
977 | md5_finish_ctx (&ctx, id_bits); | |
978 | else | |
979 | return FALSE; | |
980 | } | |
981 | else if (!strcmp (info->style, "sha1")) | |
982 | { | |
983 | struct sha1_ctx ctx; | |
984 | sha1_init_ctx (&ctx); | |
985 | if (bed->s->checksum_contents (abfd, | |
986 | (void (*) (const void *, size_t, void *)) | |
987 | &sha1_process_bytes, | |
988 | &ctx)) | |
989 | sha1_finish_ctx (&ctx, id_bits); | |
990 | else | |
991 | return FALSE; | |
992 | } | |
993 | else if (!strcmp (info->style, "uuid")) | |
994 | { | |
995 | int n; | |
996 | int fd = open ("/dev/urandom", O_RDONLY); | |
997 | if (fd < 0) | |
998 | return FALSE; | |
999 | n = read (fd, id_bits, size); | |
1000 | close (fd); | |
1001 | if (n < (int) size) | |
1002 | return FALSE; | |
1003 | } | |
1004 | else if (!strncmp (info->style, "0x", 2)) | |
1005 | { | |
1006 | /* ID is in string form (hex). Convert to bits. */ | |
1007 | const char *id = info->style + 2; | |
1008 | size_t n = 0; | |
1009 | do | |
1010 | { | |
1011 | if (ISXDIGIT (id[0]) && ISXDIGIT (id[1])) | |
1012 | { | |
1013 | id_bits[n] = read_hex (*id++) << 4; | |
1014 | id_bits[n++] |= read_hex (*id++); | |
1015 | } | |
1016 | else if (*id == '-' || *id == ':') | |
1017 | ++id; | |
1018 | else | |
1019 | abort (); /* Should have been validated earlier. */ | |
1020 | } while (*id != '\0'); | |
1021 | } | |
1022 | else | |
1023 | abort (); /* Should have been validated earlier. */ | |
1024 | ||
b2ff8454 RM |
1025 | size = asec->size; |
1026 | return (bfd_seek (abfd, | |
1027 | i_shdr->sh_offset + asec->output_offset, SEEK_SET) == 0 | |
1028 | && bfd_bwrite (contents, size, abfd) == size); | |
24382dca RM |
1029 | } |
1030 | ||
1031 | ||
04925e1e | 1032 | /* This is called after all the input files have been opened. */ |
252b5132 RH |
1033 | |
1034 | static void | |
0c7a8e5a | 1035 | gld${EMULATION_NAME}_after_open (void) |
252b5132 | 1036 | { |
04925e1e | 1037 | struct bfd_link_needed_list *needed, *l; |
d10e7fcc AM |
1038 | struct elf_link_hash_table *htab; |
1039 | ||
1040 | htab = elf_hash_table (&link_info); | |
1041 | if (!is_elf_hash_table (htab)) | |
1042 | return; | |
252b5132 | 1043 | |
c0065db7 RM |
1044 | if (link_info.emit_note_gnu_build_id) |
1045 | { | |
1046 | bfd *abfd; | |
1047 | asection *s; | |
1048 | bfd_size_type size; | |
1049 | ||
1050 | abfd = link_info.input_bfds; | |
1051 | ||
24382dca | 1052 | size = gld${EMULATION_NAME}_id_note_section_size (abfd, &link_info); |
c0065db7 RM |
1053 | if (size == 0) |
1054 | { | |
1055 | einfo ("%P: warning: unrecognized --build-id style ignored.\n"); | |
1056 | free (link_info.emit_note_gnu_build_id); | |
1057 | link_info.emit_note_gnu_build_id = NULL; | |
1058 | } | |
1059 | else | |
1060 | { | |
1061 | s = bfd_make_section_with_flags (abfd, ".note.gnu.build-id", | |
1062 | SEC_ALLOC | SEC_LOAD | |
1063 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
1064 | | SEC_READONLY | SEC_DATA); | |
1065 | if (s != NULL && bfd_set_section_alignment (abfd, s, 2)) | |
1066 | { | |
f13a99db | 1067 | struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd); |
24382dca RM |
1068 | struct build_id_info *b = xmalloc (sizeof *b); |
1069 | b->style = link_info.emit_note_gnu_build_id; | |
1070 | b->sec = s; | |
c0065db7 RM |
1071 | elf_section_type (s) = SHT_NOTE; |
1072 | s->size = size; | |
24382dca RM |
1073 | t->after_write_object_contents |
1074 | = &gld${EMULATION_NAME}_write_build_id_section; | |
1075 | t->after_write_object_contents_info = b; | |
c0065db7 RM |
1076 | } |
1077 | else | |
1078 | { | |
1079 | einfo ("%P: warning: Cannot create .note.gnu.build-id section," | |
1080 | " --build-id ignored.\n"); | |
1081 | free (link_info.emit_note_gnu_build_id); | |
1082 | link_info.emit_note_gnu_build_id = NULL; | |
1083 | } | |
1084 | } | |
1085 | } | |
1086 | ||
d10e7fcc AM |
1087 | if (link_info.relocatable) |
1088 | return; | |
1089 | ||
eb3d5f3b | 1090 | if (link_info.eh_frame_hdr |
d10e7fcc | 1091 | && !link_info.traditional_format) |
eb3d5f3b | 1092 | { |
d10e7fcc AM |
1093 | bfd *abfd; |
1094 | asection *s; | |
eb3d5f3b | 1095 | |
d10e7fcc | 1096 | for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next) |
eb3d5f3b | 1097 | { |
d10e7fcc AM |
1098 | s = bfd_get_section_by_name (abfd, ".eh_frame"); |
1099 | if (s && s->size > 8 && !bfd_is_abs_section (s->output_section)) | |
1100 | break; | |
1101 | } | |
1102 | if (abfd) | |
1103 | { | |
1104 | const struct elf_backend_data *bed; | |
1105 | ||
1106 | bed = get_elf_backend_data (abfd); | |
1107 | s = bfd_make_section_with_flags (abfd, ".eh_frame_hdr", | |
1108 | bed->dynamic_sec_flags | |
1109 | | SEC_READONLY); | |
1110 | if (s != NULL | |
1111 | && bfd_set_section_alignment (abfd, s, 2)) | |
1112 | htab->eh_info.hdr_sec = s; | |
1113 | else | |
1114 | einfo ("%P: warning: Cannot create .eh_frame_hdr section," | |
1115 | " --eh-frame-hdr ignored.\n"); | |
eb3d5f3b JB |
1116 | } |
1117 | } | |
1118 | ||
04925e1e AM |
1119 | /* Get the list of files which appear in DT_NEEDED entries in |
1120 | dynamic objects included in the link (often there will be none). | |
1121 | For each such file, we want to track down the corresponding | |
1122 | library, and include the symbol table in the link. This is what | |
1123 | the runtime dynamic linker will do. Tracking the files down here | |
1124 | permits one dynamic object to include another without requiring | |
1125 | special action by the person doing the link. Note that the | |
1126 | needed list can actually grow while we are stepping through this | |
1127 | loop. */ | |
d10e7fcc AM |
1128 | if (!link_info.executable) |
1129 | return; | |
f13a99db | 1130 | needed = bfd_elf_get_needed_list (link_info.output_bfd, &link_info); |
04925e1e | 1131 | for (l = needed; l != NULL; l = l->next) |
252b5132 | 1132 | { |
04925e1e | 1133 | struct bfd_link_needed_list *ll; |
e56f61be | 1134 | struct dt_needed n, nn; |
04925e1e | 1135 | int force; |
252b5132 | 1136 | |
7e9f0867 AM |
1137 | /* If the lib that needs this one was --as-needed and wasn't |
1138 | found to be needed, then this lib isn't needed either. */ | |
1139 | if (l->by != NULL | |
1140 | && (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0) | |
1141 | continue; | |
1142 | ||
04925e1e AM |
1143 | /* If we've already seen this file, skip it. */ |
1144 | for (ll = needed; ll != l; ll = ll->next) | |
7e9f0867 AM |
1145 | if ((ll->by == NULL |
1146 | || (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0) | |
1147 | && strcmp (ll->name, l->name) == 0) | |
04925e1e AM |
1148 | break; |
1149 | if (ll != l) | |
1150 | continue; | |
252b5132 | 1151 | |
04925e1e AM |
1152 | /* See if this file was included in the link explicitly. */ |
1153 | global_needed = l; | |
e13629bc | 1154 | global_found = NULL; |
04925e1e | 1155 | lang_for_each_input_file (gld${EMULATION_NAME}_check_needed); |
e13629bc AM |
1156 | if (global_found != NULL |
1157 | && (bfd_elf_get_dyn_lib_class (global_found->the_bfd) | |
1158 | & DYN_AS_NEEDED) == 0) | |
04925e1e | 1159 | continue; |
252b5132 | 1160 | |
e56f61be L |
1161 | n.by = l->by; |
1162 | n.name = l->name; | |
1163 | nn.by = l->by; | |
ec4eb78a L |
1164 | if (trace_file_tries) |
1165 | info_msg (_("%s needed by %B\n"), l->name, l->by); | |
1166 | ||
e13629bc AM |
1167 | /* As-needed libs specified on the command line (or linker script) |
1168 | take priority over libs found in search dirs. */ | |
1169 | if (global_found != NULL) | |
1170 | { | |
1171 | nn.name = global_found->filename; | |
1172 | if (gld${EMULATION_NAME}_try_needed (&nn, TRUE)) | |
1173 | continue; | |
1174 | } | |
1175 | ||
04925e1e AM |
1176 | /* We need to find this file and include the symbol table. We |
1177 | want to search for the file in the same way that the dynamic | |
1178 | linker will search. That means that we want to use | |
1179 | rpath_link, rpath, then the environment variable | |
ec4eb78a L |
1180 | LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH |
1181 | entries (native only), then the linker script LIB_SEARCH_DIRS. | |
1182 | We do not search using the -L arguments. | |
252b5132 | 1183 | |
04925e1e AM |
1184 | We search twice. The first time, we skip objects which may |
1185 | introduce version mismatches. The second time, we force | |
1186 | their use. See gld${EMULATION_NAME}_vercheck comment. */ | |
1187 | for (force = 0; force < 2; force++) | |
1188 | { | |
04925e1e AM |
1189 | size_t len; |
1190 | search_dirs_type *search; | |
6dd8c765 | 1191 | EOF |
ff925e69 | 1192 | if [ "x${NATIVE}" = xyes ] ; then |
92b93329 | 1193 | fragment <<EOF |
dcb0bd0e | 1194 | const char *lib_path; |
ff925e69 KK |
1195 | EOF |
1196 | fi | |
1197 | if [ "x${USE_LIBPATH}" = xyes ] ; then | |
92b93329 | 1198 | fragment <<EOF |
6dd8c765 L |
1199 | struct bfd_link_needed_list *rp; |
1200 | int found; | |
1201 | EOF | |
6dd8c765 | 1202 | fi |
92b93329 | 1203 | fragment <<EOF |
252b5132 | 1204 | |
04925e1e | 1205 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link, |
e56f61be | 1206 | &n, force)) |
04925e1e | 1207 | break; |
dcb0bd0e | 1208 | EOF |
9c8ebd6a | 1209 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
92b93329 | 1210 | fragment <<EOF |
04925e1e | 1211 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath, |
e56f61be | 1212 | &n, force)) |
04925e1e | 1213 | break; |
9c8ebd6a DJ |
1214 | EOF |
1215 | fi | |
1216 | if [ "x${NATIVE}" = xyes ] ; then | |
92b93329 | 1217 | fragment <<EOF |
04925e1e AM |
1218 | if (command_line.rpath_link == NULL |
1219 | && command_line.rpath == NULL) | |
1220 | { | |
1221 | lib_path = (const char *) getenv ("LD_RUN_PATH"); | |
e56f61be | 1222 | if (gld${EMULATION_NAME}_search_needed (lib_path, &n, |
04925e1e AM |
1223 | force)) |
1224 | break; | |
1225 | } | |
04925e1e | 1226 | lib_path = (const char *) getenv ("LD_LIBRARY_PATH"); |
e56f61be | 1227 | if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force)) |
04925e1e | 1228 | break; |
9c8ebd6a DJ |
1229 | EOF |
1230 | fi | |
1231 | if [ "x${USE_LIBPATH}" = xyes ] ; then | |
92b93329 | 1232 | fragment <<EOF |
ec4eb78a | 1233 | found = 0; |
f13a99db | 1234 | rp = bfd_elf_get_runpath_list (link_info.output_bfd, &link_info); |
6dd8c765 | 1235 | for (; !found && rp != NULL; rp = rp->next) |
ec4eb78a | 1236 | { |
9c8ebd6a | 1237 | char *tmpname = gld${EMULATION_NAME}_add_sysroot (rp->name); |
ec4eb78a | 1238 | found = (rp->by == l->by |
9c8ebd6a | 1239 | && gld${EMULATION_NAME}_search_needed (tmpname, |
e56f61be | 1240 | &n, |
ec4eb78a | 1241 | force)); |
9c8ebd6a | 1242 | free (tmpname); |
ec4eb78a L |
1243 | } |
1244 | if (found) | |
1245 | break; | |
1246 | ||
04925e1e | 1247 | EOF |
04925e1e | 1248 | fi |
c1446dba L |
1249 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
1250 | case ${target} in | |
ebe1fac1 | 1251 | *-*-freebsd* | *-*-dragonfly*) |
92b93329 | 1252 | fragment <<EOF |
ebe1fac1 NC |
1253 | if (gld${EMULATION_NAME}_check_ld_elf_hints (l->name, force)) |
1254 | break; | |
1255 | EOF | |
1256 | # FreeBSD | |
1257 | ;; | |
1258 | ||
c1446dba L |
1259 | *-*-linux-* | *-*-k*bsd*-*) |
1260 | # Linux | |
92b93329 | 1261 | fragment <<EOF |
c1446dba L |
1262 | if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force)) |
1263 | break; | |
1264 | ||
1265 | EOF | |
1266 | ;; | |
1267 | esac | |
1268 | fi | |
92b93329 | 1269 | fragment <<EOF |
04925e1e AM |
1270 | len = strlen (l->name); |
1271 | for (search = search_head; search != NULL; search = search->next) | |
1272 | { | |
1273 | char *filename; | |
252b5132 | 1274 | |
04925e1e AM |
1275 | if (search->cmdline) |
1276 | continue; | |
1277 | filename = (char *) xmalloc (strlen (search->name) + len + 2); | |
1278 | sprintf (filename, "%s/%s", search->name, l->name); | |
e56f61be L |
1279 | nn.name = filename; |
1280 | if (gld${EMULATION_NAME}_try_needed (&nn, force)) | |
04925e1e AM |
1281 | break; |
1282 | free (filename); | |
1283 | } | |
1284 | if (search != NULL) | |
1285 | break; | |
1286 | EOF | |
92b93329 | 1287 | fragment <<EOF |
04925e1e | 1288 | } |
252b5132 | 1289 | |
04925e1e AM |
1290 | if (force < 2) |
1291 | continue; | |
252b5132 | 1292 | |
e374f1d9 | 1293 | einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n", |
04925e1e AM |
1294 | l->name, l->by); |
1295 | } | |
1296 | } | |
252b5132 | 1297 | |
41392f03 AM |
1298 | EOF |
1299 | fi | |
1300 | ||
92b93329 | 1301 | fragment <<EOF |
252b5132 | 1302 | |
04925e1e | 1303 | /* Look through an expression for an assignment statement. */ |
252b5132 | 1304 | |
04925e1e | 1305 | static void |
0c7a8e5a | 1306 | gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp) |
04925e1e | 1307 | { |
4ea42fb7 | 1308 | bfd_boolean provide = FALSE; |
04925e1e AM |
1309 | |
1310 | switch (exp->type.node_class) | |
252b5132 | 1311 | { |
04925e1e | 1312 | case etree_provide: |
4ea42fb7 AM |
1313 | provide = TRUE; |
1314 | /* Fall thru */ | |
1315 | case etree_assign: | |
04925e1e AM |
1316 | /* We call record_link_assignment even if the symbol is defined. |
1317 | This is because if it is defined by a dynamic object, we | |
1318 | actually want to use the value defined by the linker script, | |
1319 | not the value from the dynamic object (because we are setting | |
1320 | symbols like etext). If the symbol is defined by a regular | |
1321 | object, then, as it happens, calling record_link_assignment | |
1322 | will do no harm. */ | |
04925e1e | 1323 | if (strcmp (exp->assign.dst, ".") != 0) |
252b5132 | 1324 | { |
f13a99db AM |
1325 | if (!bfd_elf_record_link_assignment (link_info.output_bfd, |
1326 | &link_info, | |
fe21a8fc L |
1327 | exp->assign.dst, provide, |
1328 | exp->assign.hidden)) | |
04925e1e AM |
1329 | einfo ("%P%F: failed to record assignment to %s: %E\n", |
1330 | exp->assign.dst); | |
252b5132 | 1331 | } |
04925e1e AM |
1332 | gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); |
1333 | break; | |
252b5132 | 1334 | |
04925e1e AM |
1335 | case etree_binary: |
1336 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); | |
1337 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); | |
1338 | break; | |
252b5132 | 1339 | |
04925e1e AM |
1340 | case etree_trinary: |
1341 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond); | |
1342 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); | |
1343 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); | |
1344 | break; | |
252b5132 | 1345 | |
04925e1e AM |
1346 | case etree_unary: |
1347 | gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); | |
1348 | break; | |
252b5132 | 1349 | |
04925e1e AM |
1350 | default: |
1351 | break; | |
252b5132 RH |
1352 | } |
1353 | } | |
1354 | ||
04925e1e AM |
1355 | |
1356 | /* This is called by the before_allocation routine via | |
1357 | lang_for_each_statement. It locates any assignment statements, and | |
1358 | tells the ELF backend about them, in case they are assignments to | |
1359 | symbols which are referred to by dynamic objects. */ | |
1360 | ||
1361 | static void | |
0c7a8e5a | 1362 | gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s) |
04925e1e AM |
1363 | { |
1364 | if (s->header.type == lang_assignment_statement_enum) | |
1365 | gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); | |
1366 | } | |
1367 | ||
41392f03 AM |
1368 | EOF |
1369 | ||
1370 | if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then | |
57e6abd2 AO |
1371 | if test x"${ELF_INTERPRETER_NAME+set}" = xset; then |
1372 | ELF_INTERPRETER_SET_DEFAULT=" | |
1373 | if (sinterp != NULL) | |
1374 | { | |
5718918d AM |
1375 | sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME}; |
1376 | sinterp->size = strlen ((char *) sinterp->contents) + 1; | |
57e6abd2 AO |
1377 | } |
1378 | ||
1379 | " | |
1380 | else | |
1381 | ELF_INTERPRETER_SET_DEFAULT= | |
1382 | fi | |
92b93329 | 1383 | fragment <<EOF |
04925e1e | 1384 | |
252b5132 RH |
1385 | /* This is called after the sections have been attached to output |
1386 | sections, but before any sizes or addresses have been set. */ | |
1387 | ||
1388 | static void | |
0c7a8e5a | 1389 | gld${EMULATION_NAME}_before_allocation (void) |
252b5132 RH |
1390 | { |
1391 | const char *rpath; | |
1392 | asection *sinterp; | |
1393 | ||
fd574c46 | 1394 | if (link_info.hash->type == bfd_link_elf_hash_table) |
f13a99db | 1395 | _bfd_elf_tls_setup (link_info.output_bfd, &link_info); |
e1918d23 | 1396 | |
252b5132 RH |
1397 | /* If we are going to make any variable assignments, we need to let |
1398 | the ELF backend know about them in case the variables are | |
1399 | referred to by dynamic objects. */ | |
1400 | lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment); | |
1401 | ||
1402 | /* Let the ELF backend work out the sizes of any sections required | |
1403 | by dynamic linking. */ | |
1404 | rpath = command_line.rpath; | |
1405 | if (rpath == NULL) | |
1406 | rpath = (const char *) getenv ("LD_RUN_PATH"); | |
5a580b3a | 1407 | if (! (bfd_elf_size_dynamic_sections |
f13a99db | 1408 | (link_info.output_bfd, command_line.soname, rpath, |
605d9b3a | 1409 | command_line.filter_shlib, |
252b5132 RH |
1410 | (const char * const *) command_line.auxiliary_filters, |
1411 | &link_info, &sinterp, lang_elf_version_info))) | |
1412 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); | |
8423293d | 1413 | |
57e6abd2 | 1414 | ${ELF_INTERPRETER_SET_DEFAULT} |
252b5132 RH |
1415 | /* Let the user override the dynamic linker we are using. */ |
1416 | if (command_line.interpreter != NULL | |
1417 | && sinterp != NULL) | |
1418 | { | |
1419 | sinterp->contents = (bfd_byte *) command_line.interpreter; | |
eea6121a | 1420 | sinterp->size = strlen (command_line.interpreter) + 1; |
252b5132 RH |
1421 | } |
1422 | ||
1423 | /* Look for any sections named .gnu.warning. As a GNU extensions, | |
1424 | we treat such sections as containing warning messages. We print | |
1425 | out the warning message, and then zero out the section size so | |
1426 | that it does not get copied into the output file. */ | |
1427 | ||
1428 | { | |
1429 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
1430 | { | |
1431 | asection *s; | |
1432 | bfd_size_type sz; | |
1433 | char *msg; | |
b34976b6 | 1434 | bfd_boolean ret; |
252b5132 RH |
1435 | |
1436 | if (is->just_syms_flag) | |
1437 | continue; | |
1438 | ||
1439 | s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning"); | |
1440 | if (s == NULL) | |
1441 | continue; | |
1442 | ||
eea6121a | 1443 | sz = s->size; |
bc251d50 VP |
1444 | msg = xmalloc ((size_t) (sz + 1)); |
1445 | if (! bfd_get_section_contents (is->the_bfd, s, msg, | |
8c675694 | 1446 | (file_ptr) 0, sz)) |
252b5132 RH |
1447 | einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n", |
1448 | is->the_bfd); | |
bc251d50 | 1449 | msg[sz] = '\0'; |
252b5132 RH |
1450 | ret = link_info.callbacks->warning (&link_info, msg, |
1451 | (const char *) NULL, | |
1452 | is->the_bfd, (asection *) NULL, | |
1453 | (bfd_vma) 0); | |
1454 | ASSERT (ret); | |
1455 | free (msg); | |
1456 | ||
9e3be61d AM |
1457 | /* Clobber the section size, so that we don't waste space |
1458 | copying the warning into the output file. If we've already | |
1459 | sized the output section, adjust its size. The adjustment | |
1460 | is on rawsize because targets that size sections early will | |
1461 | have called lang_reset_memory_regions after sizing. */ | |
1462 | if (s->output_section != NULL | |
1463 | && s->output_section->rawsize >= s->size) | |
1464 | s->output_section->rawsize -= s->size; | |
1465 | ||
eea6121a | 1466 | s->size = 0; |
11d2f718 | 1467 | |
9e3be61d AM |
1468 | /* Also set SEC_EXCLUDE, so that local symbols defined in the |
1469 | warning section don't get copied to the output. */ | |
a14a5de3 | 1470 | s->flags |= SEC_EXCLUDE | SEC_KEEP; |
252b5132 RH |
1471 | } |
1472 | } | |
8423293d | 1473 | |
1e035701 | 1474 | before_allocation_default (); |
8423293d | 1475 | |
f13a99db | 1476 | if (!bfd_elf_size_dynsym_hash_dynstr (link_info.output_bfd, &link_info)) |
8423293d | 1477 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); |
252b5132 RH |
1478 | } |
1479 | ||
41392f03 AM |
1480 | EOF |
1481 | fi | |
1482 | ||
1483 | if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then | |
92b93329 | 1484 | fragment <<EOF |
252b5132 | 1485 | |
04925e1e AM |
1486 | /* Try to open a dynamic archive. This is where we know that ELF |
1487 | dynamic libraries have an extension of .so (or .sl on oddball systems | |
1488 | like hpux). */ | |
1489 | ||
b34976b6 | 1490 | static bfd_boolean |
0c7a8e5a AM |
1491 | gld${EMULATION_NAME}_open_dynamic_archive |
1492 | (const char *arch, search_dirs_type *search, lang_input_statement_type *entry) | |
252b5132 | 1493 | { |
04925e1e AM |
1494 | const char *filename; |
1495 | char *string; | |
252b5132 | 1496 | |
04925e1e | 1497 | if (! entry->is_archive) |
b34976b6 | 1498 | return FALSE; |
252b5132 | 1499 | |
04925e1e | 1500 | filename = entry->filename; |
252b5132 | 1501 | |
04925e1e AM |
1502 | /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION |
1503 | is defined, but it does not seem worth the headache to optimize | |
1504 | away those two bytes of space. */ | |
1505 | string = (char *) xmalloc (strlen (search->name) | |
1506 | + strlen (filename) | |
1507 | + strlen (arch) | |
1508 | #ifdef EXTRA_SHLIB_EXTENSION | |
1509 | + strlen (EXTRA_SHLIB_EXTENSION) | |
1510 | #endif | |
1511 | + sizeof "/lib.so"); | |
1512 | ||
1513 | sprintf (string, "%s/lib%s%s.so", search->name, filename, arch); | |
1514 | ||
1515 | #ifdef EXTRA_SHLIB_EXTENSION | |
1516 | /* Try the .so extension first. If that fails build a new filename | |
1517 | using EXTRA_SHLIB_EXTENSION. */ | |
1518 | if (! ldfile_try_open_bfd (string, entry)) | |
1519 | sprintf (string, "%s/lib%s%s%s", search->name, | |
1520 | filename, arch, EXTRA_SHLIB_EXTENSION); | |
1521 | #endif | |
1522 | ||
1523 | if (! ldfile_try_open_bfd (string, entry)) | |
252b5132 | 1524 | { |
04925e1e | 1525 | free (string); |
b34976b6 | 1526 | return FALSE; |
04925e1e | 1527 | } |
252b5132 | 1528 | |
04925e1e | 1529 | entry->filename = string; |
252b5132 | 1530 | |
04925e1e AM |
1531 | /* We have found a dynamic object to include in the link. The ELF |
1532 | backend linker will create a DT_NEEDED entry in the .dynamic | |
1533 | section naming this file. If this file includes a DT_SONAME | |
1534 | entry, it will be used. Otherwise, the ELF linker will just use | |
1535 | the name of the file. For an archive found by searching, like | |
1536 | this one, the DT_NEEDED entry should consist of just the name of | |
1537 | the file, without the path information used to find it. Note | |
1538 | that we only need to do this if we have a dynamic object; an | |
1539 | archive will never be referenced by a DT_NEEDED entry. | |
252b5132 | 1540 | |
04925e1e AM |
1541 | FIXME: This approach--using bfd_elf_set_dt_needed_name--is not |
1542 | very pretty. I haven't been able to think of anything that is | |
1543 | pretty, though. */ | |
1544 | if (bfd_check_format (entry->the_bfd, bfd_object) | |
1545 | && (entry->the_bfd->flags & DYNAMIC) != 0) | |
1546 | { | |
04925e1e | 1547 | ASSERT (entry->is_archive && entry->search_dirs_flag); |
252b5132 | 1548 | |
04925e1e | 1549 | /* Rather than duplicating the logic above. Just use the |
1c9acd94 | 1550 | filename we recorded earlier. */ |
04925e1e | 1551 | |
fed2999d | 1552 | filename = lbasename (entry->filename); |
1c9acd94 | 1553 | bfd_elf_set_dt_needed_name (entry->the_bfd, filename); |
04925e1e AM |
1554 | } |
1555 | ||
b34976b6 | 1556 | return TRUE; |
04925e1e AM |
1557 | } |
1558 | ||
41392f03 AM |
1559 | EOF |
1560 | fi | |
cde43e70 AM |
1561 | |
1562 | if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then | |
92b93329 | 1563 | fragment <<EOF |
41392f03 | 1564 | |
afd7a018 | 1565 | /* A variant of lang_output_section_find used by place_orphan. */ |
04925e1e | 1566 | |
04925e1e | 1567 | static lang_output_section_statement_type * |
2a36a117 | 1568 | output_rel_find (asection *sec, int isdyn) |
04925e1e | 1569 | { |
04925e1e | 1570 | lang_output_section_statement_type *lookup; |
ba493122 | 1571 | lang_output_section_statement_type *last = NULL; |
2a36a117 | 1572 | lang_output_section_statement_type *last_alloc = NULL; |
48f2ff54 | 1573 | lang_output_section_statement_type *last_ro_alloc = NULL; |
ba493122 AM |
1574 | lang_output_section_statement_type *last_rel = NULL; |
1575 | lang_output_section_statement_type *last_rel_alloc = NULL; | |
24cdb50a | 1576 | int rela = sec->name[4] == 'a'; |
04925e1e | 1577 | |
afd7a018 AM |
1578 | for (lookup = &lang_output_section_statement.head->output_section_statement; |
1579 | lookup != NULL; | |
1580 | lookup = lookup->next) | |
04925e1e | 1581 | { |
0841712e | 1582 | if (lookup->constraint != -1 |
0112cd26 | 1583 | && CONST_STRNEQ (lookup->name, ".rel")) |
04925e1e | 1584 | { |
24cdb50a | 1585 | int lookrela = lookup->name[4] == 'a'; |
ba493122 | 1586 | |
2a36a117 AM |
1587 | /* .rel.dyn must come before all other reloc sections, to suit |
1588 | GNU ld.so. */ | |
1589 | if (isdyn) | |
1590 | break; | |
1591 | ||
1592 | /* Don't place after .rel.plt as doing so results in wrong | |
1593 | dynamic tags. */ | |
1594 | if (strcmp (".plt", lookup->name + 4 + lookrela) == 0) | |
ba493122 | 1595 | break; |
2a36a117 AM |
1596 | |
1597 | if (rela == lookrela || last_rel == NULL) | |
24cdb50a | 1598 | last_rel = lookup; |
2a36a117 AM |
1599 | if ((rela == lookrela || last_rel_alloc == NULL) |
1600 | && lookup->bfd_section != NULL | |
ba493122 AM |
1601 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) |
1602 | last_rel_alloc = lookup; | |
04925e1e | 1603 | } |
2a36a117 AM |
1604 | |
1605 | last = lookup; | |
1606 | if (lookup->bfd_section != NULL | |
1607 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) | |
48f2ff54 AM |
1608 | { |
1609 | last_alloc = lookup; | |
1610 | if ((lookup->bfd_section->flags & SEC_READONLY) != 0) | |
1611 | last_ro_alloc = lookup; | |
1612 | } | |
252b5132 | 1613 | } |
ba493122 AM |
1614 | |
1615 | if (last_rel_alloc) | |
1616 | return last_rel_alloc; | |
1617 | ||
1618 | if (last_rel) | |
1619 | return last_rel; | |
1620 | ||
48f2ff54 AM |
1621 | if (last_ro_alloc) |
1622 | return last_ro_alloc; | |
1623 | ||
2a36a117 AM |
1624 | if (last_alloc) |
1625 | return last_alloc; | |
1626 | ||
ba493122 | 1627 | return last; |
252b5132 RH |
1628 | } |
1629 | ||
1630 | /* Place an orphan section. We use this to put random SHF_ALLOC | |
1631 | sections in the right segment. */ | |
1632 | ||
b34976b6 | 1633 | static bfd_boolean |
7b986e99 | 1634 | gld${EMULATION_NAME}_place_orphan (asection *s) |
252b5132 | 1635 | { |
afd7a018 AM |
1636 | static struct orphan_save hold[] = |
1637 | { | |
1638 | { ".text", | |
1639 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, | |
1640 | 0, 0, 0, 0 }, | |
1641 | { ".rodata", | |
1642 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1643 | 0, 0, 0, 0 }, | |
1644 | { ".data", | |
1645 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, | |
1646 | 0, 0, 0, 0 }, | |
1647 | { ".bss", | |
1648 | SEC_ALLOC, | |
1649 | 0, 0, 0, 0 }, | |
1650 | { 0, | |
1651 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1652 | 0, 0, 0, 0 }, | |
1653 | { ".interp", | |
1654 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1655 | 0, 0, 0, 0 }, | |
1656 | { ".sdata", | |
1657 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA, | |
1658 | 0, 0, 0, 0 } | |
1659 | }; | |
1660 | enum orphan_save_index | |
1661 | { | |
1662 | orphan_text = 0, | |
1663 | orphan_rodata, | |
1664 | orphan_data, | |
1665 | orphan_bss, | |
1666 | orphan_rel, | |
1667 | orphan_interp, | |
1668 | orphan_sdata | |
1669 | }; | |
1670 | static int orphan_init_done = 0; | |
6a345e87 | 1671 | struct orphan_save *place; |
a854a4a7 | 1672 | const char *secname; |
afd7a018 | 1673 | lang_output_section_statement_type *after; |
252b5132 | 1674 | lang_output_section_statement_type *os; |
24cdb50a | 1675 | int isdyn = 0; |
ecca9871 L |
1676 | int iself = s->owner->xvec->flavour == bfd_target_elf_flavour; |
1677 | unsigned int sh_type = iself ? elf_section_type (s) : SHT_NULL; | |
252b5132 | 1678 | |
aea4bd9d | 1679 | secname = bfd_get_section_name (s->owner, s); |
9f61903d | 1680 | |
1049f94e | 1681 | if (! link_info.relocatable |
24cdb50a | 1682 | && link_info.combreloc |
ecca9871 | 1683 | && (s->flags & SEC_ALLOC)) |
24cdb50a | 1684 | { |
ecca9871 L |
1685 | if (iself) |
1686 | switch (sh_type) | |
1687 | { | |
1688 | case SHT_RELA: | |
1689 | secname = ".rela.dyn"; | |
1690 | isdyn = 1; | |
1691 | break; | |
1692 | case SHT_REL: | |
1693 | secname = ".rel.dyn"; | |
1694 | isdyn = 1; | |
1695 | break; | |
1696 | default: | |
1697 | break; | |
1698 | } | |
0112cd26 | 1699 | else if (CONST_STRNEQ (secname, ".rel")) |
ecca9871 L |
1700 | { |
1701 | secname = secname[4] == 'a' ? ".rela.dyn" : ".rel.dyn"; | |
1702 | isdyn = 1; | |
1703 | } | |
24cdb50a | 1704 | } |
aea4bd9d | 1705 | |
d0d6a25b | 1706 | if (isdyn || (!config.unique_orphan_sections && !unique_section_p (s))) |
252b5132 | 1707 | { |
6d02a667 | 1708 | /* Look through the script to see where to place this section. */ |
a854a4a7 AM |
1709 | os = lang_output_section_find (secname); |
1710 | ||
1711 | if (os != NULL | |
0f33d40b | 1712 | && (os->bfd_section == NULL |
afd7a018 | 1713 | || os->bfd_section->flags == 0 |
f13a99db | 1714 | || (_bfd_elf_match_sections_by_type (link_info.output_bfd, |
390fbbf1 AM |
1715 | os->bfd_section, |
1716 | s->owner, s) | |
ecca9871 L |
1717 | && ((s->flags ^ os->bfd_section->flags) |
1718 | & (SEC_LOAD | SEC_ALLOC)) == 0))) | |
a854a4a7 | 1719 | { |
0f33d40b | 1720 | /* We already have an output section statement with this |
afd7a018 AM |
1721 | name, and its bfd section, if any, has compatible flags. |
1722 | If the section already exists but does not have any flags | |
1723 | set, then it has been created by the linker, probably as a | |
1724 | result of a --section-start command line switch. */ | |
7b986e99 | 1725 | lang_add_section (&os->children, s, os); |
b34976b6 | 1726 | return TRUE; |
a854a4a7 | 1727 | } |
252b5132 RH |
1728 | } |
1729 | ||
afd7a018 AM |
1730 | if (!orphan_init_done) |
1731 | { | |
1732 | struct orphan_save *ho; | |
1733 | for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho) | |
1734 | if (ho->name != NULL) | |
1735 | { | |
1736 | ho->os = lang_output_section_find (ho->name); | |
1737 | if (ho->os != NULL && ho->os->flags == 0) | |
1738 | ho->os->flags = ho->flags; | |
1739 | } | |
1740 | orphan_init_done = 1; | |
1741 | } | |
252b5132 RH |
1742 | |
1743 | /* If this is a final link, then always put .gnu.warning.SYMBOL | |
1744 | sections into the .text section to get them out of the way. */ | |
36af4a4e | 1745 | if (link_info.executable |
1049f94e | 1746 | && ! link_info.relocatable |
0112cd26 | 1747 | && CONST_STRNEQ (secname, ".gnu.warning.") |
afd7a018 | 1748 | && hold[orphan_text].os != NULL) |
252b5132 | 1749 | { |
afd7a018 | 1750 | lang_add_section (&hold[orphan_text].os->children, s, |
7b986e99 | 1751 | hold[orphan_text].os); |
b34976b6 | 1752 | return TRUE; |
252b5132 RH |
1753 | } |
1754 | ||
1755 | /* Decide which segment the section should go in based on the | |
1756 | section name and section flags. We put loadable .note sections | |
1757 | right after the .interp section, so that the PT_NOTE segment is | |
1758 | stored right after the program headers where the OS can read it | |
1759 | in the first page. */ | |
aea4bd9d | 1760 | |
71bfc0ae AM |
1761 | place = NULL; |
1762 | if ((s->flags & SEC_ALLOC) == 0) | |
1763 | ; | |
252b5132 | 1764 | else if ((s->flags & SEC_LOAD) != 0 |
ecca9871 | 1765 | && ((iself && sh_type == SHT_NOTE) |
0112cd26 | 1766 | || (!iself && CONST_STRNEQ (secname, ".note")))) |
afd7a018 AM |
1767 | place = &hold[orphan_interp]; |
1768 | else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
1769 | place = &hold[orphan_bss]; | |
1770 | else if ((s->flags & SEC_SMALL_DATA) != 0) | |
1771 | place = &hold[orphan_sdata]; | |
1772 | else if ((s->flags & SEC_READONLY) == 0) | |
1773 | place = &hold[orphan_data]; | |
ecca9871 | 1774 | else if (((iself && (sh_type == SHT_RELA || sh_type == SHT_REL)) |
0112cd26 | 1775 | || (!iself && CONST_STRNEQ (secname, ".rel"))) |
afd7a018 AM |
1776 | && (s->flags & SEC_LOAD) != 0) |
1777 | place = &hold[orphan_rel]; | |
1778 | else if ((s->flags & SEC_CODE) == 0) | |
1779 | place = &hold[orphan_rodata]; | |
1780 | else | |
1781 | place = &hold[orphan_text]; | |
71bfc0ae | 1782 | |
afd7a018 | 1783 | after = NULL; |
5ba47421 | 1784 | if (place != NULL) |
252b5132 | 1785 | { |
afd7a018 | 1786 | if (place->os == NULL) |
5ba47421 | 1787 | { |
afd7a018 AM |
1788 | if (place->name != NULL) |
1789 | place->os = lang_output_section_find (place->name); | |
1790 | else | |
1791 | place->os = output_rel_find (s, isdyn); | |
5ba47421 | 1792 | } |
afd7a018 AM |
1793 | after = place->os; |
1794 | if (after == NULL) | |
390fbbf1 AM |
1795 | after = lang_output_section_find_by_flags |
1796 | (s, &place->os, _bfd_elf_match_sections_by_type); | |
afd7a018 AM |
1797 | if (after == NULL) |
1798 | /* *ABS* is always the first output section statement. */ | |
1799 | after = &lang_output_section_statement.head->output_section_statement; | |
252b5132 RH |
1800 | } |
1801 | ||
afd7a018 AM |
1802 | /* Choose a unique name for the section. This will be needed if the |
1803 | same section name appears in the input file with different | |
1804 | loadable or allocatable characteristics. */ | |
f13a99db | 1805 | if (bfd_get_section_by_name (link_info.output_bfd, secname) != NULL) |
252b5132 | 1806 | { |
afd7a018 | 1807 | static int count = 1; |
f13a99db AM |
1808 | secname = bfd_get_unique_section_name (link_info.output_bfd, |
1809 | secname, &count); | |
afd7a018 AM |
1810 | if (secname == NULL) |
1811 | einfo ("%F%P: place_orphan failed: %E\n"); | |
71bfc0ae | 1812 | } |
5ba47421 | 1813 | |
7b986e99 | 1814 | lang_insert_orphan (s, secname, after, place, NULL, NULL); |
252b5132 | 1815 | |
b34976b6 | 1816 | return TRUE; |
252b5132 | 1817 | } |
c56feb2b AM |
1818 | EOF |
1819 | fi | |
1820 | ||
1821 | if test x"$LDEMUL_FINISH" != xgld"$EMULATION_NAME"_finish; then | |
92b93329 | 1822 | fragment <<EOF |
252b5132 | 1823 | |
deb04cdb AM |
1824 | static void |
1825 | gld${EMULATION_NAME}_finish (void) | |
1826 | { | |
f13a99db AM |
1827 | bfd_boolean need_layout = bfd_elf_discard_info (link_info.output_bfd, |
1828 | &link_info); | |
81e1b023 | 1829 | |
8ded5a0f | 1830 | gld${EMULATION_NAME}_map_segments (need_layout); |
1e035701 | 1831 | finish_default (); |
73d074b4 | 1832 | } |
41392f03 AM |
1833 | EOF |
1834 | fi | |
1835 | ||
1836 | if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then | |
92b93329 | 1837 | fragment <<EOF |
252b5132 RH |
1838 | |
1839 | static char * | |
0c7a8e5a | 1840 | gld${EMULATION_NAME}_get_script (int *isfile) |
252b5132 RH |
1841 | EOF |
1842 | ||
1843 | if test -n "$COMPILE_IN" | |
1844 | then | |
1845 | # Scripts compiled in. | |
1846 | ||
1847 | # sed commands to quote an ld script as a C string. | |
597e2591 | 1848 | sc="-f stringify.sed" |
252b5132 | 1849 | |
92b93329 | 1850 | fragment <<EOF |
60bcf0fa | 1851 | { |
252b5132 RH |
1852 | *isfile = 0; |
1853 | ||
1049f94e | 1854 | if (link_info.relocatable && config.build_constructors) |
597e2591 | 1855 | return |
252b5132 | 1856 | EOF |
afd7a018 AM |
1857 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c |
1858 | echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c | |
1859 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c | |
1860 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c | |
1861 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c | |
61585df2 | 1862 | if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else |
afd7a018 AM |
1863 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c |
1864 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c | |
db6751f2 | 1865 | fi |
36af4a4e JJ |
1866 | if test -n "$GENERATE_PIE_SCRIPT" ; then |
1867 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
8c37241b JJ |
1868 | echo ' ; else if (link_info.pie && link_info.combreloc' >> e${EMULATION_NAME}.c |
1869 | echo ' && link_info.relro' >> e${EMULATION_NAME}.c | |
fbfca19e | 1870 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 1871 | sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c |
36af4a4e | 1872 | echo ' ; else if (link_info.pie && link_info.combreloc) return' >> e${EMULATION_NAME}.c |
afd7a018 | 1873 | sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c |
36af4a4e | 1874 | fi |
afd7a018 AM |
1875 | echo ' ; else if (link_info.pie) return' >> e${EMULATION_NAME}.c |
1876 | sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c | |
36af4a4e | 1877 | fi |
252b5132 | 1878 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then |
82434356 | 1879 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then |
8c37241b JJ |
1880 | echo ' ; else if (link_info.shared && link_info.combreloc' >> e${EMULATION_NAME}.c |
1881 | echo ' && link_info.relro' >> e${EMULATION_NAME}.c | |
fbfca19e | 1882 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 1883 | sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c |
db6751f2 | 1884 | echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c |
afd7a018 | 1885 | sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c |
82434356 | 1886 | fi |
afd7a018 AM |
1887 | echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c |
1888 | sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c | |
252b5132 | 1889 | fi |
82434356 | 1890 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then |
8c37241b | 1891 | echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c |
fbfca19e | 1892 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 AM |
1893 | sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c |
1894 | echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c | |
1895 | sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c | |
82434356 | 1896 | fi |
afd7a018 AM |
1897 | echo ' ; else return' >> e${EMULATION_NAME}.c |
1898 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c | |
1899 | echo '; }' >> e${EMULATION_NAME}.c | |
252b5132 RH |
1900 | |
1901 | else | |
1902 | # Scripts read from the filesystem. | |
1903 | ||
92b93329 | 1904 | fragment <<EOF |
60bcf0fa | 1905 | { |
252b5132 RH |
1906 | *isfile = 1; |
1907 | ||
1049f94e | 1908 | if (link_info.relocatable && config.build_constructors) |
252b5132 | 1909 | return "ldscripts/${EMULATION_NAME}.xu"; |
1049f94e | 1910 | else if (link_info.relocatable) |
252b5132 RH |
1911 | return "ldscripts/${EMULATION_NAME}.xr"; |
1912 | else if (!config.text_read_only) | |
1913 | return "ldscripts/${EMULATION_NAME}.xbn"; | |
a060b769 AM |
1914 | EOF |
1915 | if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : | |
1916 | else | |
92b93329 | 1917 | fragment <<EOF |
252b5132 RH |
1918 | else if (!config.magic_demand_paged) |
1919 | return "ldscripts/${EMULATION_NAME}.xn"; | |
a060b769 AM |
1920 | EOF |
1921 | fi | |
36af4a4e JJ |
1922 | if test -n "$GENERATE_PIE_SCRIPT" ; then |
1923 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 1924 | fragment <<EOF |
8c37241b | 1925 | else if (link_info.pie && link_info.combreloc |
fbfca19e | 1926 | && link_info.relro && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 1927 | return "ldscripts/${EMULATION_NAME}.xdw"; |
36af4a4e JJ |
1928 | else if (link_info.pie && link_info.combreloc) |
1929 | return "ldscripts/${EMULATION_NAME}.xdc"; | |
1930 | EOF | |
1931 | fi | |
92b93329 | 1932 | fragment <<EOF |
36af4a4e JJ |
1933 | else if (link_info.pie) |
1934 | return "ldscripts/${EMULATION_NAME}.xd"; | |
1935 | EOF | |
1936 | fi | |
a060b769 AM |
1937 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then |
1938 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 1939 | fragment <<EOF |
8c37241b | 1940 | else if (link_info.shared && link_info.combreloc |
fbfca19e | 1941 | && link_info.relro && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 1942 | return "ldscripts/${EMULATION_NAME}.xsw"; |
a060b769 AM |
1943 | else if (link_info.shared && link_info.combreloc) |
1944 | return "ldscripts/${EMULATION_NAME}.xsc"; | |
1945 | EOF | |
1946 | fi | |
92b93329 | 1947 | fragment <<EOF |
252b5132 RH |
1948 | else if (link_info.shared) |
1949 | return "ldscripts/${EMULATION_NAME}.xs"; | |
a060b769 AM |
1950 | EOF |
1951 | fi | |
1952 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 1953 | fragment <<EOF |
8c37241b | 1954 | else if (link_info.combreloc && link_info.relro |
fbfca19e | 1955 | && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 1956 | return "ldscripts/${EMULATION_NAME}.xw"; |
a060b769 AM |
1957 | else if (link_info.combreloc) |
1958 | return "ldscripts/${EMULATION_NAME}.xc"; | |
1959 | EOF | |
1960 | fi | |
92b93329 | 1961 | fragment <<EOF |
252b5132 RH |
1962 | else |
1963 | return "ldscripts/${EMULATION_NAME}.x"; | |
1964 | } | |
252b5132 | 1965 | |
3b108066 | 1966 | EOF |
41392f03 AM |
1967 | fi |
1968 | fi | |
3b108066 | 1969 | |
41392f03 | 1970 | if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then |
3b108066 | 1971 | |
e0ee487b | 1972 | if test -n "$PARSE_AND_LIST_PROLOGUE" ; then |
92b93329 | 1973 | fragment <<EOF |
e0ee487b L |
1974 | $PARSE_AND_LIST_PROLOGUE |
1975 | EOF | |
1976 | fi | |
1977 | ||
92b93329 | 1978 | fragment <<EOF |
e0ee487b | 1979 | |
6c1439be L |
1980 | #define OPTION_DISABLE_NEW_DTAGS (400) |
1981 | #define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1) | |
a1ab1d2a | 1982 | #define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1) |
65765700 | 1983 | #define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1) |
b58f81ae | 1984 | #define OPTION_EXCLUDE_LIBS (OPTION_EH_FRAME_HDR + 1) |
fdc90cb4 | 1985 | #define OPTION_HASH_STYLE (OPTION_EXCLUDE_LIBS + 1) |
c0065db7 | 1986 | #define OPTION_BUILD_ID (OPTION_HASH_STYLE + 1) |
e13629bc | 1987 | |
3bcf5557 | 1988 | static void |
0c7a8e5a AM |
1989 | gld${EMULATION_NAME}_add_options |
1990 | (int ns, char **shortopts, int nl, struct option **longopts, | |
1991 | int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED) | |
e0ee487b | 1992 | { |
3bcf5557 AM |
1993 | static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:"; |
1994 | static const struct option xtra_long[] = { | |
c0065db7 | 1995 | {"build-id", optional_argument, NULL, OPTION_BUILD_ID}, |
e0ee487b | 1996 | EOF |
e0ee487b L |
1997 | |
1998 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
92b93329 | 1999 | fragment <<EOF |
3bcf5557 AM |
2000 | {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS}, |
2001 | {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS}, | |
2002 | {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR}, | |
b58f81ae | 2003 | {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS}, |
fdc90cb4 | 2004 | {"hash-style", required_argument, NULL, OPTION_HASH_STYLE}, |
3bcf5557 | 2005 | {"Bgroup", no_argument, NULL, OPTION_GROUP}, |
e0ee487b L |
2006 | EOF |
2007 | fi | |
2008 | ||
2009 | if test -n "$PARSE_AND_LIST_LONGOPTS" ; then | |
92b93329 | 2010 | fragment <<EOF |
3bcf5557 | 2011 | $PARSE_AND_LIST_LONGOPTS |
e0ee487b L |
2012 | EOF |
2013 | fi | |
2014 | ||
92b93329 | 2015 | fragment <<EOF |
3bcf5557 AM |
2016 | {NULL, no_argument, NULL, 0} |
2017 | }; | |
2018 | ||
2019 | *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short)); | |
2020 | memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short)); | |
2021 | *longopts = (struct option *) | |
2022 | xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); | |
2023 | memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); | |
2024 | } | |
04925e1e | 2025 | |
24382dca | 2026 | #define DEFAULT_BUILD_ID_STYLE "sha1" |
c0065db7 | 2027 | |
3bcf5557 | 2028 | static bfd_boolean |
0c7a8e5a | 2029 | gld${EMULATION_NAME}_handle_option (int optc) |
e0ee487b | 2030 | { |
e0ee487b L |
2031 | switch (optc) |
2032 | { | |
2033 | default: | |
3bcf5557 | 2034 | return FALSE; |
6c1439be | 2035 | |
c0065db7 RM |
2036 | case OPTION_BUILD_ID: |
2037 | if (link_info.emit_note_gnu_build_id != NULL) | |
2038 | { | |
2039 | free (link_info.emit_note_gnu_build_id); | |
2040 | link_info.emit_note_gnu_build_id = NULL; | |
2041 | } | |
2042 | if (optarg == NULL) | |
2043 | optarg = DEFAULT_BUILD_ID_STYLE; | |
2044 | if (strcmp (optarg, "none")) | |
2045 | link_info.emit_note_gnu_build_id = xstrdup (optarg); | |
2046 | break; | |
2047 | ||
e0ee487b | 2048 | EOF |
e0ee487b L |
2049 | |
2050 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
92b93329 | 2051 | fragment <<EOF |
6c1439be | 2052 | case OPTION_DISABLE_NEW_DTAGS: |
b34976b6 | 2053 | link_info.new_dtags = FALSE; |
6c1439be L |
2054 | break; |
2055 | ||
2056 | case OPTION_ENABLE_NEW_DTAGS: | |
b34976b6 | 2057 | link_info.new_dtags = TRUE; |
6c1439be L |
2058 | break; |
2059 | ||
65765700 | 2060 | case OPTION_EH_FRAME_HDR: |
b34976b6 | 2061 | link_info.eh_frame_hdr = TRUE; |
65765700 JJ |
2062 | break; |
2063 | ||
a1ab1d2a UD |
2064 | case OPTION_GROUP: |
2065 | link_info.flags_1 |= (bfd_vma) DF_1_GROUP; | |
2066 | /* Groups must be self-contained. */ | |
560e09e9 NC |
2067 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; |
2068 | link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR; | |
a1ab1d2a UD |
2069 | break; |
2070 | ||
b58f81ae DJ |
2071 | case OPTION_EXCLUDE_LIBS: |
2072 | add_excluded_libs (optarg); | |
2073 | break; | |
2074 | ||
fdc90cb4 JJ |
2075 | case OPTION_HASH_STYLE: |
2076 | link_info.emit_hash = FALSE; | |
2077 | link_info.emit_gnu_hash = FALSE; | |
2078 | if (strcmp (optarg, "sysv") == 0) | |
2079 | link_info.emit_hash = TRUE; | |
2080 | else if (strcmp (optarg, "gnu") == 0) | |
2081 | link_info.emit_gnu_hash = TRUE; | |
2082 | else if (strcmp (optarg, "both") == 0) | |
2083 | { | |
2084 | link_info.emit_hash = TRUE; | |
2085 | link_info.emit_gnu_hash = TRUE; | |
2086 | } | |
2087 | else | |
2088 | einfo (_("%P%F: invalid hash style \`%s'\n"), optarg); | |
2089 | break; | |
2090 | ||
e0ee487b L |
2091 | case 'z': |
2092 | if (strcmp (optarg, "initfirst") == 0) | |
2093 | link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST; | |
2094 | else if (strcmp (optarg, "interpose") == 0) | |
2095 | link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE; | |
2096 | else if (strcmp (optarg, "loadfltr") == 0) | |
2097 | link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR; | |
2098 | else if (strcmp (optarg, "nodefaultlib") == 0) | |
2099 | link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB; | |
2100 | else if (strcmp (optarg, "nodelete") == 0) | |
2101 | link_info.flags_1 |= (bfd_vma) DF_1_NODELETE; | |
2102 | else if (strcmp (optarg, "nodlopen") == 0) | |
2103 | link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN; | |
2104 | else if (strcmp (optarg, "nodump") == 0) | |
2105 | link_info.flags_1 |= (bfd_vma) DF_1_NODUMP; | |
2106 | else if (strcmp (optarg, "now") == 0) | |
2107 | { | |
2108 | link_info.flags |= (bfd_vma) DF_BIND_NOW; | |
2109 | link_info.flags_1 |= (bfd_vma) DF_1_NOW; | |
2110 | } | |
5fa222e4 AM |
2111 | else if (strcmp (optarg, "lazy") == 0) |
2112 | { | |
2113 | link_info.flags &= ~(bfd_vma) DF_BIND_NOW; | |
2114 | link_info.flags_1 &= ~(bfd_vma) DF_1_NOW; | |
2115 | } | |
e0ee487b L |
2116 | else if (strcmp (optarg, "origin") == 0) |
2117 | { | |
2118 | link_info.flags |= (bfd_vma) DF_ORIGIN; | |
2119 | link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN; | |
2120 | } | |
a1ab1d2a | 2121 | else if (strcmp (optarg, "defs") == 0) |
560e09e9 | 2122 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; |
aa713662 | 2123 | else if (strcmp (optarg, "muldefs") == 0) |
b34976b6 | 2124 | link_info.allow_multiple_definition = TRUE; |
db6751f2 | 2125 | else if (strcmp (optarg, "combreloc") == 0) |
b34976b6 | 2126 | link_info.combreloc = TRUE; |
db6751f2 | 2127 | else if (strcmp (optarg, "nocombreloc") == 0) |
b34976b6 | 2128 | link_info.combreloc = FALSE; |
8bd621d8 | 2129 | else if (strcmp (optarg, "nocopyreloc") == 0) |
0c7a8e5a | 2130 | link_info.nocopyreloc = TRUE; |
9ee5e499 JJ |
2131 | else if (strcmp (optarg, "execstack") == 0) |
2132 | { | |
2133 | link_info.execstack = TRUE; | |
2134 | link_info.noexecstack = FALSE; | |
2135 | } | |
2136 | else if (strcmp (optarg, "noexecstack") == 0) | |
2137 | { | |
2138 | link_info.noexecstack = TRUE; | |
2139 | link_info.execstack = FALSE; | |
2140 | } | |
88b882e9 L |
2141 | EOF |
2142 | ||
2143 | if test -n "$COMMONPAGESIZE"; then | |
92b93329 | 2144 | fragment <<EOF |
8c37241b JJ |
2145 | else if (strcmp (optarg, "relro") == 0) |
2146 | link_info.relro = TRUE; | |
2147 | else if (strcmp (optarg, "norelro") == 0) | |
2148 | link_info.relro = FALSE; | |
88b882e9 L |
2149 | EOF |
2150 | fi | |
2151 | ||
92b93329 | 2152 | fragment <<EOF |
0112cd26 | 2153 | else if (CONST_STRNEQ (optarg, "max-page-size=")) |
24718e3b L |
2154 | { |
2155 | char *end; | |
0112cd26 | 2156 | |
24718e3b | 2157 | config.maxpagesize = strtoul (optarg + 14, &end, 0); |
b8142865 | 2158 | if (*end || (config.maxpagesize & (config.maxpagesize - 1)) != 0) |
24718e3b L |
2159 | einfo (_("%P%F: invalid maxium page size \`%s'\n"), |
2160 | optarg + 14); | |
b8142865 L |
2161 | ASSERT (default_target != NULL); |
2162 | bfd_emul_set_maxpagesize (default_target, config.maxpagesize); | |
24718e3b | 2163 | } |
0112cd26 | 2164 | else if (CONST_STRNEQ (optarg, "common-page-size=")) |
24718e3b L |
2165 | { |
2166 | char *end; | |
2167 | config.commonpagesize = strtoul (optarg + 17, &end, 0); | |
b8142865 L |
2168 | if (*end |
2169 | || (config.commonpagesize & (config.commonpagesize - 1)) != 0) | |
24718e3b L |
2170 | einfo (_("%P%F: invalid common page size \`%s'\n"), |
2171 | optarg + 17); | |
b8142865 L |
2172 | ASSERT (default_target != NULL); |
2173 | bfd_emul_set_commonpagesize (default_target, | |
2174 | config.commonpagesize); | |
24718e3b | 2175 | } |
e0ee487b | 2176 | /* What about the other Solaris -z options? FIXME. */ |
6c1439be | 2177 | break; |
e0ee487b L |
2178 | EOF |
2179 | fi | |
2180 | ||
2181 | if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then | |
92b93329 | 2182 | fragment <<EOF |
e0ee487b L |
2183 | $PARSE_AND_LIST_ARGS_CASES |
2184 | EOF | |
2185 | fi | |
2186 | ||
92b93329 | 2187 | fragment <<EOF |
e0ee487b L |
2188 | } |
2189 | ||
3bcf5557 | 2190 | return TRUE; |
e0ee487b L |
2191 | } |
2192 | ||
41392f03 | 2193 | EOF |
41392f03 | 2194 | |
4b209b22 | 2195 | if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then |
92b93329 | 2196 | fragment <<EOF |
41392f03 | 2197 | |
e0ee487b | 2198 | static void |
0c7a8e5a | 2199 | gld${EMULATION_NAME}_list_options (FILE * file) |
e0ee487b | 2200 | { |
442996ee AM |
2201 | fprintf (file, _("\ |
2202 | --build-id[=STYLE] Generate build ID note\n")); | |
e0ee487b | 2203 | EOF |
e0ee487b L |
2204 | |
2205 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
92b93329 | 2206 | fragment <<EOF |
442996ee AM |
2207 | fprintf (file, _("\ |
2208 | -Bgroup Selects group name lookup rules for DSO\n")); | |
2209 | fprintf (file, _("\ | |
2210 | --disable-new-dtags Disable new dynamic tags\n")); | |
2211 | fprintf (file, _("\ | |
2212 | --enable-new-dtags Enable new dynamic tags\n")); | |
2213 | fprintf (file, _("\ | |
2214 | --eh-frame-hdr Create .eh_frame_hdr section\n")); | |
2215 | fprintf (file, _("\ | |
2216 | --hash-style=STYLE Set hash style to sysv, gnu or both\n")); | |
2217 | fprintf (file, _("\ | |
2218 | -z combreloc Merge dynamic relocs into one section and sort\n")); | |
2219 | fprintf (file, _("\ | |
2220 | -z defs Report unresolved symbols in object files.\n")); | |
2221 | fprintf (file, _("\ | |
2222 | -z execstack Mark executable as requiring executable stack\n")); | |
2223 | fprintf (file, _("\ | |
2224 | -z initfirst Mark DSO to be initialized first at runtime\n")); | |
2225 | fprintf (file, _("\ | |
2226 | -z interpose Mark object to interpose all DSOs but executable\n")); | |
2227 | fprintf (file, _("\ | |
2228 | -z lazy Mark object lazy runtime binding (default)\n")); | |
2229 | fprintf (file, _("\ | |
2230 | -z loadfltr Mark object requiring immediate process\n")); | |
2231 | fprintf (file, _("\ | |
2232 | -z muldefs Allow multiple definitions\n")); | |
2233 | fprintf (file, _("\ | |
2234 | -z nocombreloc Don't merge dynamic relocs into one section\n")); | |
2235 | fprintf (file, _("\ | |
2236 | -z nocopyreloc Don't create copy relocs\n")); | |
2237 | fprintf (file, _("\ | |
2238 | -z nodefaultlib Mark object not to use default search paths\n")); | |
2239 | fprintf (file, _("\ | |
2240 | -z nodelete Mark DSO non-deletable at runtime\n")); | |
2241 | fprintf (file, _("\ | |
2242 | -z nodlopen Mark DSO not available to dlopen\n")); | |
2243 | fprintf (file, _("\ | |
2244 | -z nodump Mark DSO not available to dldump\n")); | |
2245 | fprintf (file, _("\ | |
2246 | -z noexecstack Mark executable as not requiring executable stack\n")); | |
88b882e9 L |
2247 | EOF |
2248 | ||
2249 | if test -n "$COMMONPAGESIZE"; then | |
92b93329 | 2250 | fragment <<EOF |
442996ee AM |
2251 | fprintf (file, _("\ |
2252 | -z norelro Don't create RELRO program header\n")); | |
88b882e9 L |
2253 | EOF |
2254 | fi | |
2255 | ||
92b93329 | 2256 | fragment <<EOF |
442996ee AM |
2257 | fprintf (file, _("\ |
2258 | -z now Mark object non-lazy runtime binding\n")); | |
2259 | fprintf (file, _("\ | |
2260 | -z origin Mark object requiring immediate \$ORIGIN\n\ | |
2261 | processing at runtime\n")); | |
88b882e9 L |
2262 | EOF |
2263 | ||
2264 | if test -n "$COMMONPAGESIZE"; then | |
92b93329 | 2265 | fragment <<EOF |
442996ee AM |
2266 | fprintf (file, _("\ |
2267 | -z relro Create RELRO program header\n")); | |
88b882e9 L |
2268 | EOF |
2269 | fi | |
2270 | ||
92b93329 | 2271 | fragment <<EOF |
442996ee AM |
2272 | fprintf (file, _("\ |
2273 | -z max-page-size=SIZE Set maximum page size to SIZE\n")); | |
2274 | fprintf (file, _("\ | |
2275 | -z common-page-size=SIZE Set common page size to SIZE\n")); | |
2276 | fprintf (file, _("\ | |
2277 | -z KEYWORD Ignored for Solaris compatibility\n")); | |
e0ee487b L |
2278 | EOF |
2279 | fi | |
2280 | ||
2281 | if test -n "$PARSE_AND_LIST_OPTIONS" ; then | |
92b93329 | 2282 | fragment <<EOF |
e0ee487b L |
2283 | $PARSE_AND_LIST_OPTIONS |
2284 | EOF | |
2285 | fi | |
2286 | ||
92b93329 | 2287 | fragment <<EOF |
e0ee487b L |
2288 | } |
2289 | EOF | |
e0ee487b L |
2290 | |
2291 | if test -n "$PARSE_AND_LIST_EPILOGUE" ; then | |
92b93329 | 2292 | fragment <<EOF |
e0ee487b L |
2293 | $PARSE_AND_LIST_EPILOGUE |
2294 | EOF | |
2295 | fi | |
41392f03 AM |
2296 | fi |
2297 | else | |
92b93329 | 2298 | fragment <<EOF |
3bcf5557 AM |
2299 | #define gld${EMULATION_NAME}_add_options NULL |
2300 | #define gld${EMULATION_NAME}_handle_option NULL | |
41392f03 | 2301 | EOF |
4b209b22 | 2302 | if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then |
92b93329 | 2303 | fragment <<EOF |
4b209b22 | 2304 | #define gld${EMULATION_NAME}_list_options NULL |
41392f03 AM |
2305 | EOF |
2306 | fi | |
2307 | fi | |
e0ee487b | 2308 | |
92b93329 | 2309 | fragment <<EOF |
252b5132 | 2310 | |
60bcf0fa | 2311 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = |
252b5132 | 2312 | { |
41392f03 AM |
2313 | ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse}, |
2314 | ${LDEMUL_SYSLIB-syslib_default}, | |
2315 | ${LDEMUL_HLL-hll_default}, | |
2316 | ${LDEMUL_AFTER_PARSE-after_parse_default}, | |
2317 | ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open}, | |
2318 | ${LDEMUL_AFTER_ALLOCATION-after_allocation_default}, | |
2319 | ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default}, | |
2320 | ${LDEMUL_CHOOSE_TARGET-ldemul_default_target}, | |
2321 | ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation}, | |
2322 | ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script}, | |
252b5132 RH |
2323 | "${EMULATION_NAME}", |
2324 | "${OUTPUT_FORMAT}", | |
c56feb2b | 2325 | ${LDEMUL_FINISH-gld${EMULATION_NAME}_finish}, |
41392f03 AM |
2326 | ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL}, |
2327 | ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive}, | |
2328 | ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan}, | |
2329 | ${LDEMUL_SET_SYMBOLS-NULL}, | |
3bcf5557 AM |
2330 | ${LDEMUL_PARSE_ARGS-NULL}, |
2331 | gld${EMULATION_NAME}_add_options, | |
2332 | gld${EMULATION_NAME}_handle_option, | |
41392f03 | 2333 | ${LDEMUL_UNRECOGNIZED_FILE-NULL}, |
4b209b22 | 2334 | ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options}, |
4a43e768 | 2335 | ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols}, |
41392f03 | 2336 | ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL}, |
fac1652d | 2337 | ${LDEMUL_NEW_VERS_PATTERN-NULL} |
252b5132 RH |
2338 | }; |
2339 | EOF |