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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 ${EMULATION_NAME} | |
e3dc8847 | 15 | Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
aa820537 AM |
16 | 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
17 | Free Software Foundation, Inc. | |
252b5132 RH |
18 | Written by Steve Chamberlain <[email protected]> |
19 | ELF support by Ian Lance Taylor <[email protected]> | |
20 | ||
f96b4a7b NC |
21 | This file is part of the GNU Binutils. |
22 | ||
23 | This program is free software; you can redistribute it and/or modify | |
24 | it under the terms of the GNU General Public License as published by | |
25 | the Free Software Foundation; either version 3 of the License, or | |
26 | (at your option) any later version. | |
27 | ||
28 | This program is distributed in the hope that it will be useful, | |
29 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
30 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
31 | GNU General Public License for more details. | |
32 | ||
33 | You should have received a copy of the GNU General Public License | |
34 | along with this program; if not, write to the Free Software | |
35 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
36 | MA 02110-1301, USA. */ | |
252b5132 RH |
37 | |
38 | #define TARGET_IS_${EMULATION_NAME} | |
39 | ||
252b5132 | 40 | #include "sysdep.h" |
3db64b00 | 41 | #include "bfd.h" |
1c9acd94 | 42 | #include "libiberty.h" |
3882b010 | 43 | #include "safe-ctype.h" |
fcf65871 | 44 | #include "getopt.h" |
24382dca RM |
45 | #include "md5.h" |
46 | #include "sha1.h" | |
47 | #include <fcntl.h> | |
252b5132 RH |
48 | |
49 | #include "bfdlink.h" | |
50 | ||
51 | #include "ld.h" | |
52 | #include "ldmain.h" | |
252b5132 RH |
53 | #include "ldmisc.h" |
54 | #include "ldexp.h" | |
55 | #include "ldlang.h" | |
b71e2778 AM |
56 | #include "ldfile.h" |
57 | #include "ldemul.h" | |
df2a7313 | 58 | #include <ldgram.h> |
e0ee487b | 59 | #include "elf/common.h" |
ecca9871 | 60 | #include "elf-bfd.h" |
252b5132 | 61 | |
0c7a8e5a AM |
62 | /* Declare functions used by various EXTRA_EM_FILEs. */ |
63 | static void gld${EMULATION_NAME}_before_parse (void); | |
64 | static void gld${EMULATION_NAME}_after_open (void); | |
65 | static void gld${EMULATION_NAME}_before_allocation (void); | |
eaeb0a9d | 66 | static void gld${EMULATION_NAME}_after_allocation (void); |
c2edb4b8 | 67 | static lang_output_section_statement_type *gld${EMULATION_NAME}_place_orphan |
8a99a385 | 68 | (asection *, const char *, int); |
41392f03 AM |
69 | EOF |
70 | ||
d3989512 JJ |
71 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
72 | case ${target} in | |
711c0baa | 73 | *-*-linux-* | *-*-k*bsd*-*) |
92b93329 | 74 | fragment <<EOF |
0b48acfe | 75 | #ifdef HAVE_GLOB |
d3989512 | 76 | #include <glob.h> |
0b48acfe | 77 | #endif |
d3989512 JJ |
78 | EOF |
79 | ;; | |
80 | esac | |
81 | fi | |
82 | ||
41392f03 AM |
83 | # Import any needed special functions and/or overrides. |
84 | # | |
92b93329 | 85 | source_em ${srcdir}/emultempl/elf-generic.em |
41392f03 | 86 | if test -n "$EXTRA_EM_FILE" ; then |
92b93329 | 87 | source_em ${srcdir}/emultempl/${EXTRA_EM_FILE}.em |
41392f03 AM |
88 | fi |
89 | ||
f813923c | 90 | # Functions in this file can be overridden by setting the LDEMUL_* shell |
41392f03 AM |
91 | # variables. If the name of the overriding function is the same as is |
92 | # defined in this file, then don't output this file's version. | |
93 | # If a different overriding name is given then output the standard function | |
94 | # as presumably it is called from the overriding function. | |
95 | # | |
96 | if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then | |
92b93329 | 97 | fragment <<EOF |
41392f03 | 98 | |
252b5132 | 99 | static void |
0c7a8e5a | 100 | gld${EMULATION_NAME}_before_parse (void) |
252b5132 | 101 | { |
5e2f1575 | 102 | ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); |
b34976b6 AM |
103 | config.dynamic_link = ${DYNAMIC_LINK-TRUE}; |
104 | config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`; | |
252b5132 RH |
105 | } |
106 | ||
41392f03 AM |
107 | EOF |
108 | fi | |
109 | ||
4a43e768 | 110 | if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then |
92b93329 | 111 | fragment <<EOF |
4a43e768 AM |
112 | /* Handle as_needed DT_NEEDED. */ |
113 | ||
114 | static bfd_boolean | |
115 | gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry) | |
116 | { | |
96d56e9f | 117 | int link_class = 0; |
4a43e768 AM |
118 | |
119 | /* Tell the ELF linker that we don't want the output file to have a | |
120 | DT_NEEDED entry for this file, unless it is used to resolve | |
121 | references in a regular object. */ | |
e56f61be | 122 | if (entry->as_needed) |
96d56e9f | 123 | link_class = DYN_AS_NEEDED; |
e56f61be L |
124 | |
125 | /* Tell the ELF linker that we don't want the output file to have a | |
126 | DT_NEEDED entry for any dynamic library in DT_NEEDED tags from | |
127 | this file at all. */ | |
128 | if (!entry->add_needed) | |
96d56e9f | 129 | link_class |= DYN_NO_ADD_NEEDED; |
e56f61be | 130 | |
12b9ff6c L |
131 | if (entry->just_syms_flag |
132 | && (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) != 0) | |
133 | einfo (_("%P%F: --just-symbols may not be used on DSO: %B\n"), | |
134 | entry->the_bfd); | |
135 | ||
96d56e9f | 136 | if (!link_class |
e56f61be L |
137 | || (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0) |
138 | return FALSE; | |
139 | ||
96d56e9f | 140 | bfd_elf_set_dyn_lib_class (entry->the_bfd, link_class); |
4a43e768 AM |
141 | |
142 | /* Continue on with normal load_symbols processing. */ | |
143 | return FALSE; | |
144 | } | |
145 | EOF | |
146 | fi | |
147 | ||
92b93329 | 148 | fragment <<EOF |
252b5132 RH |
149 | |
150 | /* These variables are required to pass information back and forth | |
151 | between after_open and check_needed and stat_needed and vercheck. */ | |
152 | ||
153 | static struct bfd_link_needed_list *global_needed; | |
154 | static struct stat global_stat; | |
e13629bc | 155 | static lang_input_statement_type *global_found; |
252b5132 | 156 | static struct bfd_link_needed_list *global_vercheck_needed; |
b34976b6 | 157 | static bfd_boolean global_vercheck_failed; |
252b5132 | 158 | |
252b5132 | 159 | |
04925e1e AM |
160 | /* On Linux, it's possible to have different versions of the same |
161 | shared library linked against different versions of libc. The | |
162 | dynamic linker somehow tags which libc version to use in | |
163 | /etc/ld.so.cache, and, based on the libc that it sees in the | |
164 | executable, chooses which version of the shared library to use. | |
252b5132 | 165 | |
04925e1e AM |
166 | We try to do a similar check here by checking whether this shared |
167 | library needs any other shared libraries which may conflict with | |
168 | libraries we have already included in the link. If it does, we | |
169 | skip it, and try to find another shared library farther on down the | |
170 | link path. | |
252b5132 | 171 | |
04925e1e AM |
172 | This is called via lang_for_each_input_file. |
173 | GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object | |
f813923c | 174 | which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find |
04925e1e | 175 | a conflicting version. */ |
252b5132 | 176 | |
04925e1e | 177 | static void |
0c7a8e5a | 178 | gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s) |
04925e1e | 179 | { |
1c9acd94 | 180 | const char *soname; |
04925e1e | 181 | struct bfd_link_needed_list *l; |
252b5132 | 182 | |
04925e1e AM |
183 | if (global_vercheck_failed) |
184 | return; | |
185 | if (s->the_bfd == NULL | |
186 | || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0) | |
187 | return; | |
252b5132 | 188 | |
04925e1e AM |
189 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
190 | if (soname == NULL) | |
fed2999d | 191 | soname = lbasename (bfd_get_filename (s->the_bfd)); |
04925e1e AM |
192 | |
193 | for (l = global_vercheck_needed; l != NULL; l = l->next) | |
194 | { | |
195 | const char *suffix; | |
196 | ||
1c9acd94 | 197 | if (strcmp (soname, l->name) == 0) |
04925e1e AM |
198 | { |
199 | /* Probably can't happen, but it's an easy check. */ | |
200 | continue; | |
252b5132 RH |
201 | } |
202 | ||
04925e1e | 203 | if (strchr (l->name, '/') != NULL) |
252b5132 RH |
204 | continue; |
205 | ||
04925e1e AM |
206 | suffix = strstr (l->name, ".so."); |
207 | if (suffix == NULL) | |
208 | continue; | |
209 | ||
210 | suffix += sizeof ".so." - 1; | |
211 | ||
1c9acd94 | 212 | if (strncmp (soname, l->name, suffix - l->name) == 0) |
04925e1e AM |
213 | { |
214 | /* Here we know that S is a dynamic object FOO.SO.VER1, and | |
0c7a8e5a AM |
215 | the object we are considering needs a dynamic object |
216 | FOO.SO.VER2, and VER1 and VER2 are different. This | |
217 | appears to be a version mismatch, so we tell the caller | |
218 | to try a different version of this library. */ | |
b34976b6 | 219 | global_vercheck_failed = TRUE; |
04925e1e AM |
220 | return; |
221 | } | |
252b5132 RH |
222 | } |
223 | } | |
224 | ||
252b5132 | 225 | |
04925e1e AM |
226 | /* See if an input file matches a DT_NEEDED entry by running stat on |
227 | the file. */ | |
228 | ||
229 | static void | |
0c7a8e5a | 230 | gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s) |
252b5132 | 231 | { |
04925e1e AM |
232 | struct stat st; |
233 | const char *suffix; | |
234 | const char *soname; | |
252b5132 | 235 | |
e13629bc | 236 | if (global_found != NULL) |
04925e1e AM |
237 | return; |
238 | if (s->the_bfd == NULL) | |
239 | return; | |
e13629bc AM |
240 | |
241 | /* If this input file was an as-needed entry, and wasn't found to be | |
242 | needed at the stage it was linked, then don't say we have loaded it. */ | |
243 | if ((bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0) | |
7cedef86 | 244 | return; |
04925e1e AM |
245 | |
246 | if (bfd_stat (s->the_bfd, &st) != 0) | |
252b5132 | 247 | { |
04925e1e AM |
248 | einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd); |
249 | return; | |
250 | } | |
252b5132 | 251 | |
9eabd475 ZW |
252 | /* Some operating systems, e.g. Windows, do not provide a meaningful |
253 | st_ino; they always set it to zero. (Windows does provide a | |
254 | meaningful st_dev.) Do not indicate a duplicate library in that | |
255 | case. While there is no guarantee that a system that provides | |
256 | meaningful inode numbers will never set st_ino to zero, this is | |
257 | merely an optimization, so we do not need to worry about false | |
258 | negatives. */ | |
04925e1e | 259 | if (st.st_dev == global_stat.st_dev |
9eabd475 ZW |
260 | && st.st_ino == global_stat.st_ino |
261 | && st.st_ino != 0) | |
04925e1e | 262 | { |
e13629bc | 263 | global_found = s; |
04925e1e AM |
264 | return; |
265 | } | |
252b5132 | 266 | |
04925e1e AM |
267 | /* We issue a warning if it looks like we are including two |
268 | different versions of the same shared library. For example, | |
269 | there may be a problem if -lc picks up libc.so.6 but some other | |
270 | shared library has a DT_NEEDED entry of libc.so.5. This is a | |
f813923c | 271 | heuristic test, and it will only work if the name looks like |
04925e1e AM |
272 | NAME.so.VERSION. FIXME: Depending on file names is error-prone. |
273 | If we really want to issue warnings about mixing version numbers | |
274 | of shared libraries, we need to find a better way. */ | |
252b5132 | 275 | |
04925e1e AM |
276 | if (strchr (global_needed->name, '/') != NULL) |
277 | return; | |
278 | suffix = strstr (global_needed->name, ".so."); | |
279 | if (suffix == NULL) | |
280 | return; | |
281 | suffix += sizeof ".so." - 1; | |
252b5132 | 282 | |
04925e1e AM |
283 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
284 | if (soname == NULL) | |
fed2999d | 285 | soname = lbasename (s->filename); |
252b5132 | 286 | |
cde43e70 | 287 | if (strncmp (soname, global_needed->name, suffix - global_needed->name) == 0) |
04925e1e | 288 | einfo ("%P: warning: %s, needed by %B, may conflict with %s\n", |
1c9acd94 | 289 | global_needed->name, global_needed->by, soname); |
252b5132 RH |
290 | } |
291 | ||
e56f61be L |
292 | struct dt_needed |
293 | { | |
294 | bfd *by; | |
295 | const char *name; | |
296 | }; | |
04925e1e | 297 | |
252b5132 RH |
298 | /* This function is called for each possible name for a dynamic object |
299 | named by a DT_NEEDED entry. The FORCE parameter indicates whether | |
300 | to skip the check for a conflicting version. */ | |
301 | ||
b34976b6 | 302 | static bfd_boolean |
e56f61be L |
303 | gld${EMULATION_NAME}_try_needed (struct dt_needed *needed, |
304 | int force) | |
252b5132 RH |
305 | { |
306 | bfd *abfd; | |
e56f61be | 307 | const char *name = needed->name; |
ec4eb78a | 308 | const char *soname; |
96d56e9f | 309 | int link_class; |
252b5132 | 310 | |
f13a99db | 311 | abfd = bfd_openr (name, bfd_get_target (link_info.output_bfd)); |
252b5132 | 312 | if (abfd == NULL) |
b34976b6 | 313 | return FALSE; |
252b5132 RH |
314 | if (! bfd_check_format (abfd, bfd_object)) |
315 | { | |
cde43e70 | 316 | bfd_close (abfd); |
b34976b6 | 317 | return FALSE; |
252b5132 RH |
318 | } |
319 | if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0) | |
320 | { | |
cde43e70 | 321 | bfd_close (abfd); |
b34976b6 | 322 | return FALSE; |
252b5132 RH |
323 | } |
324 | ||
c4bb8067 | 325 | /* For DT_NEEDED, they have to match. */ |
f13a99db | 326 | if (abfd->xvec != link_info.output_bfd->xvec) |
c4bb8067 L |
327 | { |
328 | bfd_close (abfd); | |
b34976b6 | 329 | return FALSE; |
c4bb8067 L |
330 | } |
331 | ||
252b5132 RH |
332 | /* Check whether this object would include any conflicting library |
333 | versions. If FORCE is set, then we skip this check; we use this | |
334 | the second time around, if we couldn't find any compatible | |
335 | instance of the shared library. */ | |
336 | ||
337 | if (! force) | |
338 | { | |
339 | struct bfd_link_needed_list *needed; | |
340 | ||
341 | if (! bfd_elf_get_bfd_needed_list (abfd, &needed)) | |
342 | einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd); | |
343 | ||
344 | if (needed != NULL) | |
345 | { | |
346 | global_vercheck_needed = needed; | |
b34976b6 | 347 | global_vercheck_failed = FALSE; |
252b5132 RH |
348 | lang_for_each_input_file (gld${EMULATION_NAME}_vercheck); |
349 | if (global_vercheck_failed) | |
350 | { | |
cde43e70 | 351 | bfd_close (abfd); |
b34976b6 | 352 | /* Return FALSE to force the caller to move on to try |
0c7a8e5a | 353 | another file on the search path. */ |
b34976b6 | 354 | return FALSE; |
252b5132 RH |
355 | } |
356 | ||
357 | /* But wait! It gets much worse. On Linux, if a shared | |
0c7a8e5a AM |
358 | library does not use libc at all, we are supposed to skip |
359 | it the first time around in case we encounter a shared | |
360 | library later on with the same name which does use the | |
361 | version of libc that we want. This is much too horrible | |
362 | to use on any system other than Linux. */ | |
252b5132 RH |
363 | |
364 | EOF | |
365 | case ${target} in | |
711c0baa | 366 | *-*-linux-* | *-*-k*bsd*-*) |
92b93329 | 367 | fragment <<EOF |
252b5132 RH |
368 | { |
369 | struct bfd_link_needed_list *l; | |
370 | ||
371 | for (l = needed; l != NULL; l = l->next) | |
0112cd26 | 372 | if (CONST_STRNEQ (l->name, "libc.so")) |
252b5132 RH |
373 | break; |
374 | if (l == NULL) | |
375 | { | |
cde43e70 | 376 | bfd_close (abfd); |
b34976b6 | 377 | return FALSE; |
252b5132 RH |
378 | } |
379 | } | |
380 | ||
381 | EOF | |
382 | ;; | |
383 | esac | |
92b93329 | 384 | fragment <<EOF |
252b5132 RH |
385 | } |
386 | } | |
387 | ||
388 | /* We've found a dynamic object matching the DT_NEEDED entry. */ | |
389 | ||
04925e1e AM |
390 | /* We have already checked that there is no other input file of the |
391 | same name. We must now check again that we are not including the | |
392 | same file twice. We need to do this because on many systems | |
393 | libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will | |
394 | reference libc.so.1. If we have already included libc.so, we | |
395 | don't want to include libc.so.1 if they are the same file, and we | |
396 | can only check that using stat. */ | |
397 | ||
398 | if (bfd_stat (abfd, &global_stat) != 0) | |
399 | einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd); | |
ec4eb78a L |
400 | |
401 | /* First strip off everything before the last '/'. */ | |
fed2999d | 402 | soname = lbasename (abfd->filename); |
ec4eb78a L |
403 | |
404 | if (trace_file_tries) | |
405 | info_msg (_("found %s at %s\n"), soname, name); | |
406 | ||
e13629bc | 407 | global_found = NULL; |
04925e1e | 408 | lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed); |
e13629bc | 409 | if (global_found != NULL) |
04925e1e | 410 | { |
b34976b6 | 411 | /* Return TRUE to indicate that we found the file, even though |
0c7a8e5a | 412 | we aren't going to do anything with it. */ |
b34976b6 | 413 | return TRUE; |
04925e1e AM |
414 | } |
415 | ||
4a43e768 AM |
416 | /* Specify the soname to use. */ |
417 | bfd_elf_set_dt_needed_name (abfd, soname); | |
04925e1e | 418 | |
4a43e768 AM |
419 | /* Tell the ELF linker that we don't want the output file to have a |
420 | DT_NEEDED entry for this file, unless it is used to resolve | |
421 | references in a regular object. */ | |
96d56e9f | 422 | link_class = DYN_DT_NEEDED; |
e56f61be L |
423 | |
424 | /* Tell the ELF linker that we don't want the output file to have a | |
425 | DT_NEEDED entry for this file at all if the entry is from a file | |
426 | with DYN_NO_ADD_NEEDED. */ | |
7e9f0867 AM |
427 | if (needed->by != NULL |
428 | && (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0) | |
96d56e9f | 429 | link_class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED; |
e56f61be | 430 | |
96d56e9f | 431 | bfd_elf_set_dyn_lib_class (abfd, link_class); |
04925e1e AM |
432 | |
433 | /* Add this file into the symbol table. */ | |
434 | if (! bfd_link_add_symbols (abfd, &link_info)) | |
435 | einfo ("%F%B: could not read symbols: %E\n", abfd); | |
436 | ||
b34976b6 | 437 | return TRUE; |
04925e1e AM |
438 | } |
439 | ||
440 | ||
441 | /* Search for a needed file in a path. */ | |
442 | ||
b34976b6 | 443 | static bfd_boolean |
e56f61be L |
444 | gld${EMULATION_NAME}_search_needed (const char *path, |
445 | struct dt_needed *n, int force) | |
04925e1e AM |
446 | { |
447 | const char *s; | |
e56f61be | 448 | const char *name = n->name; |
04925e1e | 449 | size_t len; |
e56f61be | 450 | struct dt_needed needed; |
04925e1e | 451 | |
cc5ce052 | 452 | if (name[0] == '/') |
e56f61be | 453 | return gld${EMULATION_NAME}_try_needed (n, force); |
cc5ce052 | 454 | |
04925e1e | 455 | if (path == NULL || *path == '\0') |
b34976b6 | 456 | return FALSE; |
e56f61be L |
457 | |
458 | needed.by = n->by; | |
459 | needed.name = n->name; | |
460 | ||
04925e1e AM |
461 | len = strlen (name); |
462 | while (1) | |
463 | { | |
464 | char *filename, *sset; | |
465 | ||
c76308d2 | 466 | s = strchr (path, config.rpath_separator); |
04925e1e AM |
467 | if (s == NULL) |
468 | s = path + strlen (path); | |
469 | ||
470 | filename = (char *) xmalloc (s - path + len + 2); | |
471 | if (s == path) | |
472 | sset = filename; | |
473 | else | |
474 | { | |
475 | memcpy (filename, path, s - path); | |
476 | filename[s - path] = '/'; | |
477 | sset = filename + (s - path) + 1; | |
478 | } | |
479 | strcpy (sset, name); | |
480 | ||
e56f61be L |
481 | needed.name = filename; |
482 | if (gld${EMULATION_NAME}_try_needed (&needed, force)) | |
b34976b6 | 483 | return TRUE; |
04925e1e AM |
484 | |
485 | free (filename); | |
486 | ||
487 | if (*s == '\0') | |
488 | break; | |
489 | path = s + 1; | |
490 | } | |
491 | ||
b34976b6 | 492 | return FALSE; |
04925e1e AM |
493 | } |
494 | ||
495 | EOF | |
9c8ebd6a | 496 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
92b93329 | 497 | fragment <<EOF |
9c8ebd6a | 498 | |
c76308d2 RS |
499 | /* Add the sysroot to every entry in a path separated by |
500 | config.rpath_separator. */ | |
9c8ebd6a DJ |
501 | |
502 | static char * | |
0c7a8e5a | 503 | gld${EMULATION_NAME}_add_sysroot (const char *path) |
9c8ebd6a DJ |
504 | { |
505 | int len, colons, i; | |
506 | char *ret, *p; | |
507 | ||
508 | len = strlen (path); | |
509 | colons = 0; | |
510 | i = 0; | |
511 | while (path[i]) | |
c76308d2 | 512 | if (path[i++] == config.rpath_separator) |
9c8ebd6a DJ |
513 | colons++; |
514 | ||
515 | if (path[i]) | |
516 | colons++; | |
517 | ||
42644a89 | 518 | len = len + (colons + 1) * strlen (ld_sysroot); |
9c8ebd6a DJ |
519 | ret = xmalloc (len + 1); |
520 | strcpy (ret, ld_sysroot); | |
521 | p = ret + strlen (ret); | |
522 | i = 0; | |
523 | while (path[i]) | |
c76308d2 | 524 | if (path[i] == config.rpath_separator) |
9c8ebd6a | 525 | { |
0c7a8e5a | 526 | *p++ = path[i++]; |
9c8ebd6a DJ |
527 | strcpy (p, ld_sysroot); |
528 | p = p + strlen (p); | |
9c8ebd6a DJ |
529 | } |
530 | else | |
531 | *p++ = path[i++]; | |
532 | ||
533 | *p = 0; | |
534 | return ret; | |
535 | } | |
04925e1e | 536 | |
3dc16cab DJ |
537 | EOF |
538 | case ${target} in | |
ebe1fac1 | 539 | *-*-freebsd* | *-*-dragonfly*) |
92b93329 | 540 | fragment <<EOF |
ebe1fac1 NC |
541 | /* Read the system search path the FreeBSD way rather than the Linux way. */ |
542 | #ifdef HAVE_ELF_HINTS_H | |
543 | #include <elf-hints.h> | |
544 | #else | |
545 | #include "elf-hints-local.h" | |
546 | #endif | |
547 | ||
548 | static bfd_boolean | |
549 | gld${EMULATION_NAME}_check_ld_elf_hints (const char *name, int force) | |
550 | { | |
551 | static bfd_boolean initialized; | |
552 | static char *ld_elf_hints; | |
553 | struct dt_needed needed; | |
554 | ||
555 | if (!initialized) | |
556 | { | |
557 | FILE *f; | |
558 | char *tmppath; | |
559 | ||
ff7a0acf | 560 | tmppath = concat (ld_sysroot, _PATH_ELF_HINTS, (const char *) NULL); |
ebe1fac1 NC |
561 | f = fopen (tmppath, FOPEN_RB); |
562 | free (tmppath); | |
563 | if (f != NULL) | |
564 | { | |
565 | struct elfhints_hdr hdr; | |
566 | ||
567 | if (fread (&hdr, 1, sizeof (hdr), f) == sizeof (hdr) | |
568 | && hdr.magic == ELFHINTS_MAGIC | |
569 | && hdr.version == 1) | |
570 | { | |
571 | if (fseek (f, hdr.strtab + hdr.dirlist, SEEK_SET) != -1) | |
572 | { | |
573 | char *b; | |
574 | ||
575 | b = xmalloc (hdr.dirlistlen + 1); | |
576 | if (fread (b, 1, hdr.dirlistlen + 1, f) == | |
577 | hdr.dirlistlen + 1) | |
578 | ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b); | |
e13629bc | 579 | |
ebe1fac1 NC |
580 | free (b); |
581 | } | |
582 | } | |
583 | fclose (f); | |
584 | } | |
585 | ||
586 | initialized = TRUE; | |
587 | } | |
588 | ||
589 | if (ld_elf_hints == NULL) | |
590 | return FALSE; | |
591 | ||
592 | needed.by = NULL; | |
593 | needed.name = name; | |
594 | return gld${EMULATION_NAME}_search_needed (ld_elf_hints, & needed, | |
e13629bc | 595 | force); |
ebe1fac1 NC |
596 | } |
597 | EOF | |
598 | # FreeBSD | |
599 | ;; | |
600 | ||
711c0baa | 601 | *-*-linux-* | *-*-k*bsd*-*) |
92b93329 | 602 | fragment <<EOF |
04925e1e AM |
603 | /* For a native linker, check the file /etc/ld.so.conf for directories |
604 | in which we may find shared libraries. /etc/ld.so.conf is really | |
482e8b32 | 605 | only meaningful on Linux. */ |
04925e1e | 606 | |
d3989512 | 607 | struct gld${EMULATION_NAME}_ld_so_conf |
04925e1e | 608 | { |
d3989512 JJ |
609 | char *path; |
610 | size_t len, alloc; | |
611 | }; | |
04925e1e | 612 | |
dfcffada | 613 | static bfd_boolean |
d3989512 JJ |
614 | gld${EMULATION_NAME}_parse_ld_so_conf |
615 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename); | |
616 | ||
617 | static void | |
618 | gld${EMULATION_NAME}_parse_ld_so_conf_include | |
619 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename, | |
620 | const char *pattern) | |
621 | { | |
622 | char *newp = NULL; | |
0b48acfe | 623 | #ifdef HAVE_GLOB |
d3989512 | 624 | glob_t gl; |
0b48acfe | 625 | #endif |
d3989512 JJ |
626 | |
627 | if (pattern[0] != '/') | |
04925e1e | 628 | { |
d3989512 JJ |
629 | char *p = strrchr (filename, '/'); |
630 | size_t patlen = strlen (pattern) + 1; | |
04925e1e | 631 | |
d3989512 JJ |
632 | newp = xmalloc (p - filename + 1 + patlen); |
633 | memcpy (newp, filename, p - filename + 1); | |
634 | memcpy (newp + (p - filename + 1), pattern, patlen); | |
635 | pattern = newp; | |
636 | } | |
04925e1e | 637 | |
0b48acfe | 638 | #ifdef HAVE_GLOB |
d3989512 JJ |
639 | if (glob (pattern, 0, NULL, &gl) == 0) |
640 | { | |
641 | size_t i; | |
642 | ||
643 | for (i = 0; i < gl.gl_pathc; ++i) | |
644 | gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]); | |
645 | globfree (&gl); | |
646 | } | |
0b48acfe MM |
647 | #else |
648 | /* If we do not have glob, treat the pattern as a literal filename. */ | |
649 | gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern); | |
650 | #endif | |
d3989512 JJ |
651 | |
652 | if (newp) | |
653 | free (newp); | |
654 | } | |
655 | ||
dfcffada | 656 | static bfd_boolean |
d3989512 JJ |
657 | gld${EMULATION_NAME}_parse_ld_so_conf |
658 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename) | |
659 | { | |
660 | FILE *f = fopen (filename, FOPEN_RT); | |
563f4125 JJ |
661 | char *line; |
662 | size_t linelen; | |
d3989512 JJ |
663 | |
664 | if (f == NULL) | |
dfcffada | 665 | return FALSE; |
d3989512 | 666 | |
563f4125 JJ |
667 | linelen = 256; |
668 | line = xmalloc (linelen); | |
669 | do | |
d3989512 | 670 | { |
563f4125 JJ |
671 | char *p = line, *q; |
672 | ||
673 | /* Normally this would use getline(3), but we need to be portable. */ | |
674 | while ((q = fgets (p, linelen - (p - line), f)) != NULL | |
675 | && strlen (q) == linelen - (p - line) - 1 | |
676 | && line[linelen - 2] != '\n') | |
677 | { | |
678 | line = xrealloc (line, 2 * linelen); | |
679 | p = line + linelen - 1; | |
680 | linelen += linelen; | |
681 | } | |
682 | ||
683 | if (q == NULL && p == line) | |
684 | break; | |
d3989512 JJ |
685 | |
686 | p = strchr (line, '\n'); | |
687 | if (p) | |
688 | *p = '\0'; | |
689 | ||
690 | /* Because the file format does not know any form of quoting we | |
691 | can search forward for the next '#' character and if found | |
692 | make it terminating the line. */ | |
693 | p = strchr (line, '#'); | |
694 | if (p) | |
695 | *p = '\0'; | |
696 | ||
697 | /* Remove leading whitespace. NUL is no whitespace character. */ | |
698 | p = line; | |
699 | while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v') | |
700 | ++p; | |
701 | ||
702 | /* If the line is blank it is ignored. */ | |
703 | if (p[0] == '\0') | |
704 | continue; | |
04925e1e | 705 | |
0112cd26 | 706 | if (CONST_STRNEQ (p, "include") && (p[7] == ' ' || p[7] == '\t')) |
d3989512 JJ |
707 | { |
708 | char *dir, c; | |
709 | p += 8; | |
710 | do | |
04925e1e | 711 | { |
d3989512 JJ |
712 | while (*p == ' ' || *p == '\t') |
713 | ++p; | |
04925e1e | 714 | |
d3989512 JJ |
715 | if (*p == '\0') |
716 | break; | |
252b5132 | 717 | |
d3989512 JJ |
718 | dir = p; |
719 | ||
720 | while (*p != ' ' && *p != '\t' && *p) | |
721 | ++p; | |
722 | ||
723 | c = *p; | |
724 | *p++ = '\0'; | |
725 | if (dir[0] != '\0') | |
726 | gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename, | |
727 | dir); | |
728 | } | |
729 | while (c != '\0'); | |
730 | } | |
731 | else | |
732 | { | |
733 | char *dir = p; | |
734 | while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f' | |
735 | && *p != '\r' && *p != '\v') | |
736 | ++p; | |
737 | ||
738 | while (p != dir && p[-1] == '/') | |
739 | --p; | |
740 | if (info->path == NULL) | |
741 | { | |
742 | info->alloc = p - dir + 1 + 256; | |
743 | info->path = xmalloc (info->alloc); | |
744 | info->len = 0; | |
745 | } | |
04925e1e AM |
746 | else |
747 | { | |
d3989512 JJ |
748 | if (info->len + 1 + (p - dir) >= info->alloc) |
749 | { | |
750 | info->alloc += p - dir + 256; | |
751 | info->path = xrealloc (info->path, info->alloc); | |
752 | } | |
c76308d2 | 753 | info->path[info->len++] = config.rpath_separator; |
04925e1e | 754 | } |
d3989512 JJ |
755 | memcpy (info->path + info->len, dir, p - dir); |
756 | info->len += p - dir; | |
757 | info->path[info->len] = '\0'; | |
758 | } | |
759 | } | |
563f4125 | 760 | while (! feof (f)); |
d3989512 JJ |
761 | free (line); |
762 | fclose (f); | |
dfcffada | 763 | return TRUE; |
d3989512 | 764 | } |
252b5132 | 765 | |
d3989512 JJ |
766 | static bfd_boolean |
767 | gld${EMULATION_NAME}_check_ld_so_conf (const char *name, int force) | |
768 | { | |
769 | static bfd_boolean initialized; | |
770 | static char *ld_so_conf; | |
771 | struct dt_needed needed; | |
252b5132 | 772 | |
d3989512 JJ |
773 | if (! initialized) |
774 | { | |
775 | char *tmppath; | |
776 | struct gld${EMULATION_NAME}_ld_so_conf info; | |
9c8ebd6a | 777 | |
d3989512 JJ |
778 | info.path = NULL; |
779 | info.len = info.alloc = 0; | |
ff7a0acf AM |
780 | tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf", |
781 | (const char *) NULL); | |
dfcffada AM |
782 | if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath)) |
783 | { | |
784 | free (tmppath); | |
ff7a0acf AM |
785 | tmppath = concat (ld_sysroot, "/etc/ld.so.conf", |
786 | (const char *) NULL); | |
dfcffada AM |
787 | gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath); |
788 | } | |
d3989512 | 789 | free (tmppath); |
dfcffada | 790 | |
d3989512 JJ |
791 | if (info.path) |
792 | { | |
793 | char *d = gld${EMULATION_NAME}_add_sysroot (info.path); | |
794 | free (info.path); | |
795 | ld_so_conf = d; | |
04925e1e | 796 | } |
b34976b6 | 797 | initialized = TRUE; |
04925e1e | 798 | } |
49e56c49 | 799 | |
04925e1e | 800 | if (ld_so_conf == NULL) |
b34976b6 | 801 | return FALSE; |
252b5132 | 802 | |
e56f61be L |
803 | |
804 | needed.by = NULL; | |
805 | needed.name = name; | |
806 | return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force); | |
252b5132 RH |
807 | } |
808 | ||
04925e1e | 809 | EOF |
9c8ebd6a DJ |
810 | # Linux |
811 | ;; | |
04925e1e AM |
812 | esac |
813 | fi | |
92b93329 | 814 | fragment <<EOF |
04925e1e | 815 | |
252b5132 RH |
816 | /* See if an input file matches a DT_NEEDED entry by name. */ |
817 | ||
818 | static void | |
0c7a8e5a | 819 | gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s) |
252b5132 | 820 | { |
e13629bc AM |
821 | const char *soname; |
822 | ||
823 | /* Stop looking if we've found a loaded lib. */ | |
824 | if (global_found != NULL | |
825 | && (bfd_elf_get_dyn_lib_class (global_found->the_bfd) | |
826 | & DYN_AS_NEEDED) == 0) | |
252b5132 RH |
827 | return; |
828 | ||
e13629bc AM |
829 | if (s->filename == NULL || s->the_bfd == NULL) |
830 | return; | |
831 | ||
832 | /* Don't look for a second non-loaded as-needed lib. */ | |
833 | if (global_found != NULL | |
834 | && (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0) | |
7cedef86 AM |
835 | return; |
836 | ||
e13629bc | 837 | if (strcmp (s->filename, global_needed->name) == 0) |
252b5132 | 838 | { |
e13629bc AM |
839 | global_found = s; |
840 | return; | |
841 | } | |
577a0623 | 842 | |
e13629bc AM |
843 | if (s->search_dirs_flag) |
844 | { | |
845 | const char *f = strrchr (s->filename, '/'); | |
846 | if (f != NULL | |
847 | && strcmp (f + 1, global_needed->name) == 0) | |
577a0623 | 848 | { |
e13629bc | 849 | global_found = s; |
577a0623 AM |
850 | return; |
851 | } | |
252b5132 RH |
852 | } |
853 | ||
e13629bc AM |
854 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
855 | if (soname != NULL | |
856 | && strcmp (soname, global_needed->name) == 0) | |
252b5132 | 857 | { |
e13629bc AM |
858 | global_found = s; |
859 | return; | |
252b5132 | 860 | } |
252b5132 RH |
861 | } |
862 | ||
41392f03 AM |
863 | EOF |
864 | ||
865 | if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then | |
92b93329 | 866 | fragment <<EOF |
04925e1e | 867 | |
24382dca RM |
868 | static bfd_size_type |
869 | gld${EMULATION_NAME}_id_note_section_size (bfd *abfd, | |
870 | struct bfd_link_info *link_info) | |
871 | { | |
872 | const char *style = link_info->emit_note_gnu_build_id; | |
873 | bfd_size_type size; | |
874 | ||
875 | abfd = abfd; | |
876 | ||
877 | size = offsetof (Elf_External_Note, name[sizeof "GNU"]); | |
878 | size = (size + 3) & -(bfd_size_type) 4; | |
879 | ||
880 | if (!strcmp (style, "md5") || !strcmp (style, "uuid")) | |
881 | size += 128 / 8; | |
882 | else if (!strcmp (style, "sha1")) | |
883 | size += 160 / 8; | |
884 | else if (!strncmp (style, "0x", 2)) | |
885 | { | |
886 | /* ID is in string form (hex). Convert to bits. */ | |
887 | const char *id = style + 2; | |
888 | do | |
889 | { | |
890 | if (ISXDIGIT (id[0]) && ISXDIGIT (id[1])) | |
891 | { | |
892 | ++size; | |
893 | id += 2; | |
894 | } | |
895 | else if (*id == '-' || *id == ':') | |
896 | ++id; | |
897 | else | |
898 | { | |
899 | size = 0; | |
900 | break; | |
901 | } | |
902 | } while (*id != '\0'); | |
903 | } | |
904 | else | |
905 | size = 0; | |
906 | ||
907 | return size; | |
908 | } | |
909 | ||
910 | static unsigned char | |
911 | read_hex (const char xdigit) | |
912 | { | |
913 | if (ISDIGIT (xdigit)) | |
914 | return xdigit - '0'; | |
915 | if (ISUPPER (xdigit)) | |
916 | return xdigit - 'A' + 0xa; | |
917 | if (ISLOWER (xdigit)) | |
918 | return xdigit - 'a' + 0xa; | |
919 | abort (); | |
920 | return 0; | |
921 | } | |
922 | ||
923 | struct build_id_info | |
924 | { | |
925 | const char *style; | |
926 | asection *sec; | |
927 | }; | |
928 | ||
929 | static bfd_boolean | |
930 | gld${EMULATION_NAME}_write_build_id_section (bfd *abfd) | |
931 | { | |
932 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
933 | struct build_id_info *info = | |
934 | elf_tdata (abfd)->after_write_object_contents_info; | |
935 | asection *asec; | |
936 | Elf_Internal_Shdr *i_shdr; | |
937 | unsigned char *contents, *id_bits; | |
938 | bfd_size_type size; | |
939 | Elf_External_Note *e_note; | |
940 | ||
941 | asec = info->sec; | |
83e4970b | 942 | if (bfd_is_abs_section (asec->output_section)) |
24382dca | 943 | { |
83e4970b AM |
944 | einfo (_("%P: warning: .note.gnu.build-id section discarded," |
945 | " --build-id ignored.\n")); | |
946 | return TRUE; | |
24382dca RM |
947 | } |
948 | i_shdr = &elf_section_data (asec->output_section)->this_hdr; | |
949 | ||
950 | if (i_shdr->contents == NULL) | |
951 | { | |
b2ff8454 RM |
952 | if (asec->contents == NULL) |
953 | asec->contents = xmalloc (asec->size); | |
954 | contents = asec->contents; | |
24382dca | 955 | } |
b2ff8454 RM |
956 | else |
957 | contents = i_shdr->contents + asec->output_offset; | |
24382dca RM |
958 | |
959 | e_note = (void *) contents; | |
960 | size = offsetof (Elf_External_Note, name[sizeof "GNU"]); | |
961 | size = (size + 3) & -(bfd_size_type) 4; | |
962 | id_bits = contents + size; | |
963 | size = asec->size - size; | |
964 | ||
965 | bfd_h_put_32 (abfd, sizeof "GNU", &e_note->namesz); | |
966 | bfd_h_put_32 (abfd, size, &e_note->descsz); | |
967 | bfd_h_put_32 (abfd, NT_GNU_BUILD_ID, &e_note->type); | |
968 | memcpy (e_note->name, "GNU", sizeof "GNU"); | |
969 | ||
970 | if (!strcmp (info->style, "md5")) | |
971 | { | |
972 | struct md5_ctx ctx; | |
973 | md5_init_ctx (&ctx); | |
974 | if (bed->s->checksum_contents (abfd, | |
975 | (void (*) (const void *, size_t, void *)) | |
976 | &md5_process_bytes, | |
977 | &ctx)) | |
978 | md5_finish_ctx (&ctx, id_bits); | |
979 | else | |
980 | return FALSE; | |
981 | } | |
982 | else if (!strcmp (info->style, "sha1")) | |
983 | { | |
984 | struct sha1_ctx ctx; | |
985 | sha1_init_ctx (&ctx); | |
986 | if (bed->s->checksum_contents (abfd, | |
987 | (void (*) (const void *, size_t, void *)) | |
988 | &sha1_process_bytes, | |
989 | &ctx)) | |
990 | sha1_finish_ctx (&ctx, id_bits); | |
991 | else | |
992 | return FALSE; | |
993 | } | |
994 | else if (!strcmp (info->style, "uuid")) | |
995 | { | |
996 | int n; | |
997 | int fd = open ("/dev/urandom", O_RDONLY); | |
998 | if (fd < 0) | |
999 | return FALSE; | |
1000 | n = read (fd, id_bits, size); | |
1001 | close (fd); | |
1002 | if (n < (int) size) | |
1003 | return FALSE; | |
1004 | } | |
1005 | else if (!strncmp (info->style, "0x", 2)) | |
1006 | { | |
1007 | /* ID is in string form (hex). Convert to bits. */ | |
1008 | const char *id = info->style + 2; | |
1009 | size_t n = 0; | |
1010 | do | |
1011 | { | |
1012 | if (ISXDIGIT (id[0]) && ISXDIGIT (id[1])) | |
1013 | { | |
1014 | id_bits[n] = read_hex (*id++) << 4; | |
1015 | id_bits[n++] |= read_hex (*id++); | |
1016 | } | |
1017 | else if (*id == '-' || *id == ':') | |
1018 | ++id; | |
1019 | else | |
1020 | abort (); /* Should have been validated earlier. */ | |
1021 | } while (*id != '\0'); | |
1022 | } | |
1023 | else | |
1024 | abort (); /* Should have been validated earlier. */ | |
1025 | ||
b2ff8454 RM |
1026 | size = asec->size; |
1027 | return (bfd_seek (abfd, | |
1028 | i_shdr->sh_offset + asec->output_offset, SEEK_SET) == 0 | |
1029 | && bfd_bwrite (contents, size, abfd) == size); | |
24382dca RM |
1030 | } |
1031 | ||
1032 | ||
04925e1e | 1033 | /* This is called after all the input files have been opened. */ |
252b5132 RH |
1034 | |
1035 | static void | |
0c7a8e5a | 1036 | gld${EMULATION_NAME}_after_open (void) |
252b5132 | 1037 | { |
04925e1e | 1038 | struct bfd_link_needed_list *needed, *l; |
d10e7fcc AM |
1039 | struct elf_link_hash_table *htab; |
1040 | ||
1041 | htab = elf_hash_table (&link_info); | |
1042 | if (!is_elf_hash_table (htab)) | |
1043 | return; | |
252b5132 | 1044 | |
c0065db7 RM |
1045 | if (link_info.emit_note_gnu_build_id) |
1046 | { | |
1047 | bfd *abfd; | |
1048 | asection *s; | |
1049 | bfd_size_type size; | |
1050 | ||
1051 | abfd = link_info.input_bfds; | |
1052 | ||
e9e0a58e | 1053 | if (abfd == NULL) |
c0065db7 | 1054 | { |
e9e0a58e NC |
1055 | /* PR 10555: If there are no input files do not |
1056 | try to create a .note.gnu-build-id section. */ | |
c0065db7 RM |
1057 | free (link_info.emit_note_gnu_build_id); |
1058 | link_info.emit_note_gnu_build_id = NULL; | |
1059 | } | |
1060 | else | |
1061 | { | |
e9e0a58e NC |
1062 | size = gld${EMULATION_NAME}_id_note_section_size (abfd, &link_info); |
1063 | if (size == 0) | |
c0065db7 | 1064 | { |
e9e0a58e NC |
1065 | einfo ("%P: warning: unrecognized --build-id style ignored.\n"); |
1066 | free (link_info.emit_note_gnu_build_id); | |
1067 | link_info.emit_note_gnu_build_id = NULL; | |
c0065db7 RM |
1068 | } |
1069 | else | |
1070 | { | |
e9e0a58e NC |
1071 | s = bfd_make_section_with_flags (abfd, ".note.gnu.build-id", |
1072 | SEC_ALLOC | SEC_LOAD | |
1073 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
1074 | | SEC_READONLY | SEC_DATA); | |
1075 | if (s != NULL && bfd_set_section_alignment (abfd, s, 2)) | |
1076 | { | |
1077 | struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd); | |
1078 | struct build_id_info *b = xmalloc (sizeof *b); | |
1079 | ||
1080 | b->style = link_info.emit_note_gnu_build_id; | |
1081 | b->sec = s; | |
1082 | elf_section_type (s) = SHT_NOTE; | |
1083 | s->size = size; | |
1084 | t->after_write_object_contents | |
1085 | = &gld${EMULATION_NAME}_write_build_id_section; | |
1086 | t->after_write_object_contents_info = b; | |
1087 | } | |
1088 | else | |
1089 | { | |
1090 | einfo ("%P: warning: Cannot create .note.gnu.build-id section," | |
1091 | " --build-id ignored.\n"); | |
1092 | free (link_info.emit_note_gnu_build_id); | |
1093 | link_info.emit_note_gnu_build_id = NULL; | |
1094 | } | |
c0065db7 RM |
1095 | } |
1096 | } | |
1097 | } | |
1098 | ||
d10e7fcc AM |
1099 | if (link_info.relocatable) |
1100 | return; | |
1101 | ||
eb3d5f3b | 1102 | if (link_info.eh_frame_hdr |
d10e7fcc | 1103 | && !link_info.traditional_format) |
eb3d5f3b | 1104 | { |
d10e7fcc AM |
1105 | bfd *abfd; |
1106 | asection *s; | |
eb3d5f3b | 1107 | |
d10e7fcc | 1108 | for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next) |
eb3d5f3b | 1109 | { |
d10e7fcc AM |
1110 | s = bfd_get_section_by_name (abfd, ".eh_frame"); |
1111 | if (s && s->size > 8 && !bfd_is_abs_section (s->output_section)) | |
1112 | break; | |
1113 | } | |
1114 | if (abfd) | |
1115 | { | |
1116 | const struct elf_backend_data *bed; | |
1117 | ||
1118 | bed = get_elf_backend_data (abfd); | |
1119 | s = bfd_make_section_with_flags (abfd, ".eh_frame_hdr", | |
1120 | bed->dynamic_sec_flags | |
1121 | | SEC_READONLY); | |
1122 | if (s != NULL | |
1123 | && bfd_set_section_alignment (abfd, s, 2)) | |
1124 | htab->eh_info.hdr_sec = s; | |
1125 | else | |
1126 | einfo ("%P: warning: Cannot create .eh_frame_hdr section," | |
1127 | " --eh-frame-hdr ignored.\n"); | |
eb3d5f3b JB |
1128 | } |
1129 | } | |
1130 | ||
04925e1e AM |
1131 | /* Get the list of files which appear in DT_NEEDED entries in |
1132 | dynamic objects included in the link (often there will be none). | |
1133 | For each such file, we want to track down the corresponding | |
1134 | library, and include the symbol table in the link. This is what | |
1135 | the runtime dynamic linker will do. Tracking the files down here | |
1136 | permits one dynamic object to include another without requiring | |
1137 | special action by the person doing the link. Note that the | |
1138 | needed list can actually grow while we are stepping through this | |
1139 | loop. */ | |
d10e7fcc AM |
1140 | if (!link_info.executable) |
1141 | return; | |
f13a99db | 1142 | needed = bfd_elf_get_needed_list (link_info.output_bfd, &link_info); |
04925e1e | 1143 | for (l = needed; l != NULL; l = l->next) |
252b5132 | 1144 | { |
04925e1e | 1145 | struct bfd_link_needed_list *ll; |
e56f61be | 1146 | struct dt_needed n, nn; |
04925e1e | 1147 | int force; |
252b5132 | 1148 | |
7e9f0867 AM |
1149 | /* If the lib that needs this one was --as-needed and wasn't |
1150 | found to be needed, then this lib isn't needed either. */ | |
1151 | if (l->by != NULL | |
1152 | && (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0) | |
1153 | continue; | |
1154 | ||
04925e1e AM |
1155 | /* If we've already seen this file, skip it. */ |
1156 | for (ll = needed; ll != l; ll = ll->next) | |
7e9f0867 AM |
1157 | if ((ll->by == NULL |
1158 | || (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0) | |
1159 | && strcmp (ll->name, l->name) == 0) | |
04925e1e AM |
1160 | break; |
1161 | if (ll != l) | |
1162 | continue; | |
252b5132 | 1163 | |
04925e1e AM |
1164 | /* See if this file was included in the link explicitly. */ |
1165 | global_needed = l; | |
e13629bc | 1166 | global_found = NULL; |
04925e1e | 1167 | lang_for_each_input_file (gld${EMULATION_NAME}_check_needed); |
e13629bc AM |
1168 | if (global_found != NULL |
1169 | && (bfd_elf_get_dyn_lib_class (global_found->the_bfd) | |
1170 | & DYN_AS_NEEDED) == 0) | |
04925e1e | 1171 | continue; |
252b5132 | 1172 | |
e56f61be L |
1173 | n.by = l->by; |
1174 | n.name = l->name; | |
1175 | nn.by = l->by; | |
ec4eb78a L |
1176 | if (trace_file_tries) |
1177 | info_msg (_("%s needed by %B\n"), l->name, l->by); | |
1178 | ||
e13629bc AM |
1179 | /* As-needed libs specified on the command line (or linker script) |
1180 | take priority over libs found in search dirs. */ | |
1181 | if (global_found != NULL) | |
1182 | { | |
1183 | nn.name = global_found->filename; | |
1184 | if (gld${EMULATION_NAME}_try_needed (&nn, TRUE)) | |
1185 | continue; | |
1186 | } | |
1187 | ||
04925e1e AM |
1188 | /* We need to find this file and include the symbol table. We |
1189 | want to search for the file in the same way that the dynamic | |
1190 | linker will search. That means that we want to use | |
1191 | rpath_link, rpath, then the environment variable | |
ec4eb78a L |
1192 | LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH |
1193 | entries (native only), then the linker script LIB_SEARCH_DIRS. | |
1194 | We do not search using the -L arguments. | |
252b5132 | 1195 | |
04925e1e AM |
1196 | We search twice. The first time, we skip objects which may |
1197 | introduce version mismatches. The second time, we force | |
1198 | their use. See gld${EMULATION_NAME}_vercheck comment. */ | |
1199 | for (force = 0; force < 2; force++) | |
1200 | { | |
04925e1e AM |
1201 | size_t len; |
1202 | search_dirs_type *search; | |
6dd8c765 | 1203 | EOF |
ff925e69 | 1204 | if [ "x${NATIVE}" = xyes ] ; then |
92b93329 | 1205 | fragment <<EOF |
dcb0bd0e | 1206 | const char *lib_path; |
ff925e69 KK |
1207 | EOF |
1208 | fi | |
1209 | if [ "x${USE_LIBPATH}" = xyes ] ; then | |
92b93329 | 1210 | fragment <<EOF |
6dd8c765 L |
1211 | struct bfd_link_needed_list *rp; |
1212 | int found; | |
1213 | EOF | |
6dd8c765 | 1214 | fi |
92b93329 | 1215 | fragment <<EOF |
252b5132 | 1216 | |
04925e1e | 1217 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link, |
e56f61be | 1218 | &n, force)) |
04925e1e | 1219 | break; |
dcb0bd0e | 1220 | EOF |
9c8ebd6a | 1221 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
92b93329 | 1222 | fragment <<EOF |
04925e1e | 1223 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath, |
e56f61be | 1224 | &n, force)) |
04925e1e | 1225 | break; |
9c8ebd6a DJ |
1226 | EOF |
1227 | fi | |
1228 | if [ "x${NATIVE}" = xyes ] ; then | |
92b93329 | 1229 | fragment <<EOF |
04925e1e AM |
1230 | if (command_line.rpath_link == NULL |
1231 | && command_line.rpath == NULL) | |
1232 | { | |
1233 | lib_path = (const char *) getenv ("LD_RUN_PATH"); | |
e56f61be | 1234 | if (gld${EMULATION_NAME}_search_needed (lib_path, &n, |
04925e1e AM |
1235 | force)) |
1236 | break; | |
1237 | } | |
04925e1e | 1238 | lib_path = (const char *) getenv ("LD_LIBRARY_PATH"); |
e56f61be | 1239 | if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force)) |
04925e1e | 1240 | break; |
9c8ebd6a DJ |
1241 | EOF |
1242 | fi | |
1243 | if [ "x${USE_LIBPATH}" = xyes ] ; then | |
92b93329 | 1244 | fragment <<EOF |
ec4eb78a | 1245 | found = 0; |
f13a99db | 1246 | rp = bfd_elf_get_runpath_list (link_info.output_bfd, &link_info); |
6dd8c765 | 1247 | for (; !found && rp != NULL; rp = rp->next) |
ec4eb78a | 1248 | { |
9c8ebd6a | 1249 | char *tmpname = gld${EMULATION_NAME}_add_sysroot (rp->name); |
ec4eb78a | 1250 | found = (rp->by == l->by |
9c8ebd6a | 1251 | && gld${EMULATION_NAME}_search_needed (tmpname, |
e56f61be | 1252 | &n, |
ec4eb78a | 1253 | force)); |
9c8ebd6a | 1254 | free (tmpname); |
ec4eb78a L |
1255 | } |
1256 | if (found) | |
1257 | break; | |
1258 | ||
04925e1e | 1259 | EOF |
04925e1e | 1260 | fi |
c1446dba L |
1261 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
1262 | case ${target} in | |
ebe1fac1 | 1263 | *-*-freebsd* | *-*-dragonfly*) |
92b93329 | 1264 | fragment <<EOF |
ebe1fac1 NC |
1265 | if (gld${EMULATION_NAME}_check_ld_elf_hints (l->name, force)) |
1266 | break; | |
1267 | EOF | |
1268 | # FreeBSD | |
1269 | ;; | |
1270 | ||
c1446dba L |
1271 | *-*-linux-* | *-*-k*bsd*-*) |
1272 | # Linux | |
92b93329 | 1273 | fragment <<EOF |
c1446dba L |
1274 | if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force)) |
1275 | break; | |
1276 | ||
1277 | EOF | |
1278 | ;; | |
1279 | esac | |
1280 | fi | |
92b93329 | 1281 | fragment <<EOF |
04925e1e AM |
1282 | len = strlen (l->name); |
1283 | for (search = search_head; search != NULL; search = search->next) | |
1284 | { | |
1285 | char *filename; | |
252b5132 | 1286 | |
04925e1e AM |
1287 | if (search->cmdline) |
1288 | continue; | |
1289 | filename = (char *) xmalloc (strlen (search->name) + len + 2); | |
1290 | sprintf (filename, "%s/%s", search->name, l->name); | |
e56f61be L |
1291 | nn.name = filename; |
1292 | if (gld${EMULATION_NAME}_try_needed (&nn, force)) | |
04925e1e AM |
1293 | break; |
1294 | free (filename); | |
1295 | } | |
1296 | if (search != NULL) | |
1297 | break; | |
1298 | EOF | |
92b93329 | 1299 | fragment <<EOF |
04925e1e | 1300 | } |
252b5132 | 1301 | |
04925e1e AM |
1302 | if (force < 2) |
1303 | continue; | |
252b5132 | 1304 | |
e374f1d9 | 1305 | einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n", |
04925e1e AM |
1306 | l->name, l->by); |
1307 | } | |
1308 | } | |
252b5132 | 1309 | |
41392f03 AM |
1310 | EOF |
1311 | fi | |
1312 | ||
92b93329 | 1313 | fragment <<EOF |
252b5132 | 1314 | |
04925e1e | 1315 | /* Look through an expression for an assignment statement. */ |
252b5132 | 1316 | |
04925e1e | 1317 | static void |
0c7a8e5a | 1318 | gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp) |
04925e1e | 1319 | { |
4ea42fb7 | 1320 | bfd_boolean provide = FALSE; |
04925e1e AM |
1321 | |
1322 | switch (exp->type.node_class) | |
252b5132 | 1323 | { |
04925e1e | 1324 | case etree_provide: |
4ea42fb7 AM |
1325 | provide = TRUE; |
1326 | /* Fall thru */ | |
1327 | case etree_assign: | |
04925e1e AM |
1328 | /* We call record_link_assignment even if the symbol is defined. |
1329 | This is because if it is defined by a dynamic object, we | |
1330 | actually want to use the value defined by the linker script, | |
1331 | not the value from the dynamic object (because we are setting | |
1332 | symbols like etext). If the symbol is defined by a regular | |
1333 | object, then, as it happens, calling record_link_assignment | |
1334 | will do no harm. */ | |
04925e1e | 1335 | if (strcmp (exp->assign.dst, ".") != 0) |
252b5132 | 1336 | { |
f13a99db AM |
1337 | if (!bfd_elf_record_link_assignment (link_info.output_bfd, |
1338 | &link_info, | |
fe21a8fc L |
1339 | exp->assign.dst, provide, |
1340 | exp->assign.hidden)) | |
04925e1e AM |
1341 | einfo ("%P%F: failed to record assignment to %s: %E\n", |
1342 | exp->assign.dst); | |
252b5132 | 1343 | } |
04925e1e AM |
1344 | gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); |
1345 | break; | |
252b5132 | 1346 | |
04925e1e AM |
1347 | case etree_binary: |
1348 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); | |
1349 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); | |
1350 | break; | |
252b5132 | 1351 | |
04925e1e AM |
1352 | case etree_trinary: |
1353 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond); | |
1354 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); | |
1355 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); | |
1356 | break; | |
252b5132 | 1357 | |
04925e1e AM |
1358 | case etree_unary: |
1359 | gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); | |
1360 | break; | |
252b5132 | 1361 | |
04925e1e AM |
1362 | default: |
1363 | break; | |
252b5132 RH |
1364 | } |
1365 | } | |
1366 | ||
04925e1e AM |
1367 | |
1368 | /* This is called by the before_allocation routine via | |
1369 | lang_for_each_statement. It locates any assignment statements, and | |
1370 | tells the ELF backend about them, in case they are assignments to | |
1371 | symbols which are referred to by dynamic objects. */ | |
1372 | ||
1373 | static void | |
0c7a8e5a | 1374 | gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s) |
04925e1e AM |
1375 | { |
1376 | if (s->header.type == lang_assignment_statement_enum) | |
1377 | gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); | |
1378 | } | |
1379 | ||
41392f03 AM |
1380 | EOF |
1381 | ||
1382 | if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then | |
57e6abd2 AO |
1383 | if test x"${ELF_INTERPRETER_NAME+set}" = xset; then |
1384 | ELF_INTERPRETER_SET_DEFAULT=" | |
1385 | if (sinterp != NULL) | |
1386 | { | |
5718918d AM |
1387 | sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME}; |
1388 | sinterp->size = strlen ((char *) sinterp->contents) + 1; | |
57e6abd2 AO |
1389 | } |
1390 | ||
1391 | " | |
1392 | else | |
1393 | ELF_INTERPRETER_SET_DEFAULT= | |
1394 | fi | |
92b93329 | 1395 | fragment <<EOF |
04925e1e | 1396 | |
252b5132 RH |
1397 | /* This is called after the sections have been attached to output |
1398 | sections, but before any sizes or addresses have been set. */ | |
1399 | ||
1400 | static void | |
0c7a8e5a | 1401 | gld${EMULATION_NAME}_before_allocation (void) |
252b5132 RH |
1402 | { |
1403 | const char *rpath; | |
1404 | asection *sinterp; | |
1405 | ||
fd574c46 | 1406 | if (link_info.hash->type == bfd_link_elf_hash_table) |
f13a99db | 1407 | _bfd_elf_tls_setup (link_info.output_bfd, &link_info); |
e1918d23 | 1408 | |
252b5132 RH |
1409 | /* If we are going to make any variable assignments, we need to let |
1410 | the ELF backend know about them in case the variables are | |
1411 | referred to by dynamic objects. */ | |
1412 | lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment); | |
1413 | ||
1414 | /* Let the ELF backend work out the sizes of any sections required | |
1415 | by dynamic linking. */ | |
1416 | rpath = command_line.rpath; | |
1417 | if (rpath == NULL) | |
1418 | rpath = (const char *) getenv ("LD_RUN_PATH"); | |
5a580b3a | 1419 | if (! (bfd_elf_size_dynamic_sections |
f13a99db | 1420 | (link_info.output_bfd, command_line.soname, rpath, |
605d9b3a | 1421 | command_line.filter_shlib, |
252b5132 RH |
1422 | (const char * const *) command_line.auxiliary_filters, |
1423 | &link_info, &sinterp, lang_elf_version_info))) | |
1424 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); | |
8423293d | 1425 | |
57e6abd2 | 1426 | ${ELF_INTERPRETER_SET_DEFAULT} |
252b5132 RH |
1427 | /* Let the user override the dynamic linker we are using. */ |
1428 | if (command_line.interpreter != NULL | |
1429 | && sinterp != NULL) | |
1430 | { | |
1431 | sinterp->contents = (bfd_byte *) command_line.interpreter; | |
eea6121a | 1432 | sinterp->size = strlen (command_line.interpreter) + 1; |
252b5132 RH |
1433 | } |
1434 | ||
1435 | /* Look for any sections named .gnu.warning. As a GNU extensions, | |
1436 | we treat such sections as containing warning messages. We print | |
1437 | out the warning message, and then zero out the section size so | |
1438 | that it does not get copied into the output file. */ | |
1439 | ||
1440 | { | |
1441 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
1442 | { | |
1443 | asection *s; | |
1444 | bfd_size_type sz; | |
1445 | char *msg; | |
b34976b6 | 1446 | bfd_boolean ret; |
252b5132 RH |
1447 | |
1448 | if (is->just_syms_flag) | |
1449 | continue; | |
1450 | ||
1451 | s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning"); | |
1452 | if (s == NULL) | |
1453 | continue; | |
1454 | ||
eea6121a | 1455 | sz = s->size; |
bc251d50 VP |
1456 | msg = xmalloc ((size_t) (sz + 1)); |
1457 | if (! bfd_get_section_contents (is->the_bfd, s, msg, | |
8c675694 | 1458 | (file_ptr) 0, sz)) |
252b5132 RH |
1459 | einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n", |
1460 | is->the_bfd); | |
bc251d50 | 1461 | msg[sz] = '\0'; |
252b5132 RH |
1462 | ret = link_info.callbacks->warning (&link_info, msg, |
1463 | (const char *) NULL, | |
1464 | is->the_bfd, (asection *) NULL, | |
1465 | (bfd_vma) 0); | |
1466 | ASSERT (ret); | |
1467 | free (msg); | |
1468 | ||
9e3be61d AM |
1469 | /* Clobber the section size, so that we don't waste space |
1470 | copying the warning into the output file. If we've already | |
1471 | sized the output section, adjust its size. The adjustment | |
1472 | is on rawsize because targets that size sections early will | |
1473 | have called lang_reset_memory_regions after sizing. */ | |
1474 | if (s->output_section != NULL | |
1475 | && s->output_section->rawsize >= s->size) | |
1476 | s->output_section->rawsize -= s->size; | |
1477 | ||
eea6121a | 1478 | s->size = 0; |
11d2f718 | 1479 | |
9e3be61d AM |
1480 | /* Also set SEC_EXCLUDE, so that local symbols defined in the |
1481 | warning section don't get copied to the output. */ | |
a14a5de3 | 1482 | s->flags |= SEC_EXCLUDE | SEC_KEEP; |
252b5132 RH |
1483 | } |
1484 | } | |
8423293d | 1485 | |
1e035701 | 1486 | before_allocation_default (); |
8423293d | 1487 | |
f13a99db | 1488 | if (!bfd_elf_size_dynsym_hash_dynstr (link_info.output_bfd, &link_info)) |
8423293d | 1489 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); |
252b5132 RH |
1490 | } |
1491 | ||
41392f03 AM |
1492 | EOF |
1493 | fi | |
1494 | ||
1495 | if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then | |
92b93329 | 1496 | fragment <<EOF |
252b5132 | 1497 | |
04925e1e AM |
1498 | /* Try to open a dynamic archive. This is where we know that ELF |
1499 | dynamic libraries have an extension of .so (or .sl on oddball systems | |
1500 | like hpux). */ | |
1501 | ||
b34976b6 | 1502 | static bfd_boolean |
0c7a8e5a AM |
1503 | gld${EMULATION_NAME}_open_dynamic_archive |
1504 | (const char *arch, search_dirs_type *search, lang_input_statement_type *entry) | |
252b5132 | 1505 | { |
04925e1e AM |
1506 | const char *filename; |
1507 | char *string; | |
252b5132 | 1508 | |
04925e1e | 1509 | if (! entry->is_archive) |
b34976b6 | 1510 | return FALSE; |
252b5132 | 1511 | |
04925e1e | 1512 | filename = entry->filename; |
252b5132 | 1513 | |
04925e1e AM |
1514 | /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION |
1515 | is defined, but it does not seem worth the headache to optimize | |
1516 | away those two bytes of space. */ | |
1517 | string = (char *) xmalloc (strlen (search->name) | |
1518 | + strlen (filename) | |
1519 | + strlen (arch) | |
1520 | #ifdef EXTRA_SHLIB_EXTENSION | |
1521 | + strlen (EXTRA_SHLIB_EXTENSION) | |
1522 | #endif | |
1523 | + sizeof "/lib.so"); | |
1524 | ||
1525 | sprintf (string, "%s/lib%s%s.so", search->name, filename, arch); | |
1526 | ||
1527 | #ifdef EXTRA_SHLIB_EXTENSION | |
1528 | /* Try the .so extension first. If that fails build a new filename | |
1529 | using EXTRA_SHLIB_EXTENSION. */ | |
1530 | if (! ldfile_try_open_bfd (string, entry)) | |
a26cc967 AM |
1531 | { |
1532 | sprintf (string, "%s/lib%s%s%s", search->name, | |
1533 | filename, arch, EXTRA_SHLIB_EXTENSION); | |
04925e1e AM |
1534 | #endif |
1535 | ||
1536 | if (! ldfile_try_open_bfd (string, entry)) | |
252b5132 | 1537 | { |
04925e1e | 1538 | free (string); |
b34976b6 | 1539 | return FALSE; |
04925e1e | 1540 | } |
a26cc967 AM |
1541 | #ifdef EXTRA_SHLIB_EXTENSION |
1542 | } | |
1543 | #endif | |
252b5132 | 1544 | |
04925e1e | 1545 | entry->filename = string; |
252b5132 | 1546 | |
04925e1e AM |
1547 | /* We have found a dynamic object to include in the link. The ELF |
1548 | backend linker will create a DT_NEEDED entry in the .dynamic | |
1549 | section naming this file. If this file includes a DT_SONAME | |
1550 | entry, it will be used. Otherwise, the ELF linker will just use | |
1551 | the name of the file. For an archive found by searching, like | |
1552 | this one, the DT_NEEDED entry should consist of just the name of | |
1553 | the file, without the path information used to find it. Note | |
1554 | that we only need to do this if we have a dynamic object; an | |
1555 | archive will never be referenced by a DT_NEEDED entry. | |
252b5132 | 1556 | |
04925e1e AM |
1557 | FIXME: This approach--using bfd_elf_set_dt_needed_name--is not |
1558 | very pretty. I haven't been able to think of anything that is | |
1559 | pretty, though. */ | |
1560 | if (bfd_check_format (entry->the_bfd, bfd_object) | |
1561 | && (entry->the_bfd->flags & DYNAMIC) != 0) | |
1562 | { | |
04925e1e | 1563 | ASSERT (entry->is_archive && entry->search_dirs_flag); |
252b5132 | 1564 | |
04925e1e | 1565 | /* Rather than duplicating the logic above. Just use the |
1c9acd94 | 1566 | filename we recorded earlier. */ |
04925e1e | 1567 | |
fed2999d | 1568 | filename = lbasename (entry->filename); |
1c9acd94 | 1569 | bfd_elf_set_dt_needed_name (entry->the_bfd, filename); |
04925e1e AM |
1570 | } |
1571 | ||
b34976b6 | 1572 | return TRUE; |
04925e1e AM |
1573 | } |
1574 | ||
41392f03 AM |
1575 | EOF |
1576 | fi | |
cde43e70 AM |
1577 | |
1578 | if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then | |
92b93329 | 1579 | fragment <<EOF |
41392f03 | 1580 | |
afd7a018 | 1581 | /* A variant of lang_output_section_find used by place_orphan. */ |
04925e1e | 1582 | |
04925e1e | 1583 | static lang_output_section_statement_type * |
2a36a117 | 1584 | output_rel_find (asection *sec, int isdyn) |
04925e1e | 1585 | { |
04925e1e | 1586 | lang_output_section_statement_type *lookup; |
ba493122 | 1587 | lang_output_section_statement_type *last = NULL; |
2a36a117 | 1588 | lang_output_section_statement_type *last_alloc = NULL; |
48f2ff54 | 1589 | lang_output_section_statement_type *last_ro_alloc = NULL; |
ba493122 AM |
1590 | lang_output_section_statement_type *last_rel = NULL; |
1591 | lang_output_section_statement_type *last_rel_alloc = NULL; | |
24cdb50a | 1592 | int rela = sec->name[4] == 'a'; |
04925e1e | 1593 | |
afd7a018 AM |
1594 | for (lookup = &lang_output_section_statement.head->output_section_statement; |
1595 | lookup != NULL; | |
1596 | lookup = lookup->next) | |
04925e1e | 1597 | { |
66c103b7 | 1598 | if (lookup->constraint >= 0 |
0112cd26 | 1599 | && CONST_STRNEQ (lookup->name, ".rel")) |
04925e1e | 1600 | { |
24cdb50a | 1601 | int lookrela = lookup->name[4] == 'a'; |
ba493122 | 1602 | |
2a36a117 AM |
1603 | /* .rel.dyn must come before all other reloc sections, to suit |
1604 | GNU ld.so. */ | |
1605 | if (isdyn) | |
1606 | break; | |
1607 | ||
1608 | /* Don't place after .rel.plt as doing so results in wrong | |
1609 | dynamic tags. */ | |
1610 | if (strcmp (".plt", lookup->name + 4 + lookrela) == 0) | |
ba493122 | 1611 | break; |
2a36a117 AM |
1612 | |
1613 | if (rela == lookrela || last_rel == NULL) | |
24cdb50a | 1614 | last_rel = lookup; |
2a36a117 AM |
1615 | if ((rela == lookrela || last_rel_alloc == NULL) |
1616 | && lookup->bfd_section != NULL | |
ba493122 AM |
1617 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) |
1618 | last_rel_alloc = lookup; | |
04925e1e | 1619 | } |
2a36a117 AM |
1620 | |
1621 | last = lookup; | |
1622 | if (lookup->bfd_section != NULL | |
1623 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) | |
48f2ff54 AM |
1624 | { |
1625 | last_alloc = lookup; | |
1626 | if ((lookup->bfd_section->flags & SEC_READONLY) != 0) | |
1627 | last_ro_alloc = lookup; | |
1628 | } | |
252b5132 | 1629 | } |
ba493122 AM |
1630 | |
1631 | if (last_rel_alloc) | |
1632 | return last_rel_alloc; | |
1633 | ||
1634 | if (last_rel) | |
1635 | return last_rel; | |
1636 | ||
48f2ff54 AM |
1637 | if (last_ro_alloc) |
1638 | return last_ro_alloc; | |
1639 | ||
2a36a117 AM |
1640 | if (last_alloc) |
1641 | return last_alloc; | |
1642 | ||
ba493122 | 1643 | return last; |
252b5132 RH |
1644 | } |
1645 | ||
1646 | /* Place an orphan section. We use this to put random SHF_ALLOC | |
1647 | sections in the right segment. */ | |
1648 | ||
c2edb4b8 | 1649 | static lang_output_section_statement_type * |
8a99a385 AM |
1650 | gld${EMULATION_NAME}_place_orphan (asection *s, |
1651 | const char *secname, | |
1652 | int constraint) | |
252b5132 | 1653 | { |
afd7a018 AM |
1654 | static struct orphan_save hold[] = |
1655 | { | |
1656 | { ".text", | |
1657 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, | |
1658 | 0, 0, 0, 0 }, | |
1659 | { ".rodata", | |
1660 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1661 | 0, 0, 0, 0 }, | |
1662 | { ".data", | |
1663 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, | |
1664 | 0, 0, 0, 0 }, | |
1665 | { ".bss", | |
1666 | SEC_ALLOC, | |
1667 | 0, 0, 0, 0 }, | |
1668 | { 0, | |
1669 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1670 | 0, 0, 0, 0 }, | |
1671 | { ".interp", | |
1672 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1673 | 0, 0, 0, 0 }, | |
1674 | { ".sdata", | |
1675 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA, | |
07890c07 AM |
1676 | 0, 0, 0, 0 }, |
1677 | { 0, | |
1678 | SEC_HAS_CONTENTS, | |
1679 | 0, 0, 0, 0 }, | |
afd7a018 AM |
1680 | }; |
1681 | enum orphan_save_index | |
1682 | { | |
1683 | orphan_text = 0, | |
1684 | orphan_rodata, | |
1685 | orphan_data, | |
1686 | orphan_bss, | |
1687 | orphan_rel, | |
1688 | orphan_interp, | |
07890c07 AM |
1689 | orphan_sdata, |
1690 | orphan_nonalloc | |
afd7a018 AM |
1691 | }; |
1692 | static int orphan_init_done = 0; | |
6a345e87 | 1693 | struct orphan_save *place; |
afd7a018 | 1694 | lang_output_section_statement_type *after; |
252b5132 | 1695 | lang_output_section_statement_type *os; |
24cdb50a | 1696 | int isdyn = 0; |
ecca9871 L |
1697 | int iself = s->owner->xvec->flavour == bfd_target_elf_flavour; |
1698 | unsigned int sh_type = iself ? elf_section_type (s) : SHT_NULL; | |
252b5132 | 1699 | |
1049f94e | 1700 | if (! link_info.relocatable |
24cdb50a | 1701 | && link_info.combreloc |
ecca9871 | 1702 | && (s->flags & SEC_ALLOC)) |
24cdb50a | 1703 | { |
ecca9871 L |
1704 | if (iself) |
1705 | switch (sh_type) | |
1706 | { | |
1707 | case SHT_RELA: | |
1708 | secname = ".rela.dyn"; | |
1709 | isdyn = 1; | |
1710 | break; | |
1711 | case SHT_REL: | |
1712 | secname = ".rel.dyn"; | |
1713 | isdyn = 1; | |
1714 | break; | |
1715 | default: | |
1716 | break; | |
1717 | } | |
0112cd26 | 1718 | else if (CONST_STRNEQ (secname, ".rel")) |
ecca9871 L |
1719 | { |
1720 | secname = secname[4] == 'a' ? ".rela.dyn" : ".rel.dyn"; | |
1721 | isdyn = 1; | |
1722 | } | |
24cdb50a | 1723 | } |
aea4bd9d | 1724 | |
bcacc0f5 | 1725 | /* Look through the script to see where to place this section. */ |
d127ecce AM |
1726 | if (constraint == 0) |
1727 | for (os = lang_output_section_find (secname); | |
1728 | os != NULL; | |
1729 | os = next_matching_output_section_statement (os, 0)) | |
1730 | { | |
1731 | /* If we don't match an existing output section, tell | |
1732 | lang_insert_orphan to create a new output section. */ | |
1733 | constraint = SPECIAL; | |
1734 | ||
1735 | if (os->bfd_section != NULL | |
1736 | && (os->bfd_section->flags == 0 | |
1737 | || (_bfd_elf_match_sections_by_type (link_info.output_bfd, | |
1738 | os->bfd_section, | |
1739 | s->owner, s) | |
1740 | && ((s->flags ^ os->bfd_section->flags) | |
1741 | & (SEC_LOAD | SEC_ALLOC)) == 0))) | |
1742 | { | |
1743 | /* We already have an output section statement with this | |
1744 | name, and its bfd section has compatible flags. | |
1745 | If the section already exists but does not have any flags | |
1746 | set, then it has been created by the linker, probably as a | |
1747 | result of a --section-start command line switch. */ | |
1748 | lang_add_section (&os->children, s, os); | |
1749 | return os; | |
1750 | } | |
1751 | } | |
252b5132 | 1752 | |
afd7a018 AM |
1753 | if (!orphan_init_done) |
1754 | { | |
07890c07 | 1755 | lang_output_section_statement_type *lookup; |
afd7a018 | 1756 | struct orphan_save *ho; |
07890c07 | 1757 | |
afd7a018 AM |
1758 | for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho) |
1759 | if (ho->name != NULL) | |
1760 | { | |
1761 | ho->os = lang_output_section_find (ho->name); | |
1762 | if (ho->os != NULL && ho->os->flags == 0) | |
1763 | ho->os->flags = ho->flags; | |
1764 | } | |
07890c07 AM |
1765 | lookup = hold[orphan_bss].os; |
1766 | if (lookup == NULL) | |
1767 | lookup = &lang_output_section_statement.head->output_section_statement; | |
1768 | for (; lookup != NULL; lookup = lookup->next) | |
1769 | if ((lookup->bfd_section != NULL | |
1770 | && (lookup->bfd_section->flags & SEC_DEBUGGING) != 0) | |
1771 | || strcmp (lookup->name, ".comment") == 0) | |
1772 | break; | |
1773 | hold[orphan_nonalloc].os = lookup ? lookup->prev : NULL; | |
1774 | hold[orphan_nonalloc].name = ".comment"; | |
afd7a018 AM |
1775 | orphan_init_done = 1; |
1776 | } | |
252b5132 RH |
1777 | |
1778 | /* If this is a final link, then always put .gnu.warning.SYMBOL | |
1779 | sections into the .text section to get them out of the way. */ | |
36af4a4e | 1780 | if (link_info.executable |
1049f94e | 1781 | && ! link_info.relocatable |
bcacc0f5 | 1782 | && CONST_STRNEQ (s->name, ".gnu.warning.") |
afd7a018 | 1783 | && hold[orphan_text].os != NULL) |
252b5132 | 1784 | { |
c2edb4b8 AM |
1785 | os = hold[orphan_text].os; |
1786 | lang_add_section (&os->children, s, os); | |
1787 | return os; | |
252b5132 RH |
1788 | } |
1789 | ||
1790 | /* Decide which segment the section should go in based on the | |
1791 | section name and section flags. We put loadable .note sections | |
1792 | right after the .interp section, so that the PT_NOTE segment is | |
1793 | stored right after the program headers where the OS can read it | |
1794 | in the first page. */ | |
aea4bd9d | 1795 | |
71bfc0ae | 1796 | place = NULL; |
07890c07 AM |
1797 | if ((s->flags & (SEC_ALLOC | SEC_DEBUGGING)) == 0) |
1798 | place = &hold[orphan_nonalloc]; | |
1799 | else if ((s->flags & SEC_ALLOC) == 0) | |
71bfc0ae | 1800 | ; |
252b5132 | 1801 | else if ((s->flags & SEC_LOAD) != 0 |
ecca9871 | 1802 | && ((iself && sh_type == SHT_NOTE) |
0112cd26 | 1803 | || (!iself && CONST_STRNEQ (secname, ".note")))) |
afd7a018 AM |
1804 | place = &hold[orphan_interp]; |
1805 | else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0) | |
1806 | place = &hold[orphan_bss]; | |
1807 | else if ((s->flags & SEC_SMALL_DATA) != 0) | |
1808 | place = &hold[orphan_sdata]; | |
1809 | else if ((s->flags & SEC_READONLY) == 0) | |
1810 | place = &hold[orphan_data]; | |
ecca9871 | 1811 | else if (((iself && (sh_type == SHT_RELA || sh_type == SHT_REL)) |
0112cd26 | 1812 | || (!iself && CONST_STRNEQ (secname, ".rel"))) |
afd7a018 AM |
1813 | && (s->flags & SEC_LOAD) != 0) |
1814 | place = &hold[orphan_rel]; | |
1815 | else if ((s->flags & SEC_CODE) == 0) | |
1816 | place = &hold[orphan_rodata]; | |
1817 | else | |
1818 | place = &hold[orphan_text]; | |
71bfc0ae | 1819 | |
afd7a018 | 1820 | after = NULL; |
5ba47421 | 1821 | if (place != NULL) |
252b5132 | 1822 | { |
afd7a018 | 1823 | if (place->os == NULL) |
5ba47421 | 1824 | { |
afd7a018 AM |
1825 | if (place->name != NULL) |
1826 | place->os = lang_output_section_find (place->name); | |
1827 | else | |
1828 | place->os = output_rel_find (s, isdyn); | |
5ba47421 | 1829 | } |
afd7a018 AM |
1830 | after = place->os; |
1831 | if (after == NULL) | |
390fbbf1 AM |
1832 | after = lang_output_section_find_by_flags |
1833 | (s, &place->os, _bfd_elf_match_sections_by_type); | |
afd7a018 AM |
1834 | if (after == NULL) |
1835 | /* *ABS* is always the first output section statement. */ | |
1836 | after = &lang_output_section_statement.head->output_section_statement; | |
252b5132 RH |
1837 | } |
1838 | ||
c2edb4b8 | 1839 | return lang_insert_orphan (s, secname, constraint, after, place, NULL, NULL); |
252b5132 | 1840 | } |
c56feb2b AM |
1841 | EOF |
1842 | fi | |
1843 | ||
eaeb0a9d | 1844 | if test x"$LDEMUL_AFTER_ALLOCATION" != xgld"$EMULATION_NAME"_after_allocation; then |
92b93329 | 1845 | fragment <<EOF |
252b5132 | 1846 | |
deb04cdb | 1847 | static void |
eaeb0a9d | 1848 | gld${EMULATION_NAME}_after_allocation (void) |
deb04cdb | 1849 | { |
f13a99db AM |
1850 | bfd_boolean need_layout = bfd_elf_discard_info (link_info.output_bfd, |
1851 | &link_info); | |
8ded5a0f | 1852 | gld${EMULATION_NAME}_map_segments (need_layout); |
73d074b4 | 1853 | } |
41392f03 AM |
1854 | EOF |
1855 | fi | |
1856 | ||
1857 | if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then | |
92b93329 | 1858 | fragment <<EOF |
252b5132 RH |
1859 | |
1860 | static char * | |
0c7a8e5a | 1861 | gld${EMULATION_NAME}_get_script (int *isfile) |
252b5132 RH |
1862 | EOF |
1863 | ||
1864 | if test -n "$COMPILE_IN" | |
1865 | then | |
1866 | # Scripts compiled in. | |
1867 | ||
1868 | # sed commands to quote an ld script as a C string. | |
597e2591 | 1869 | sc="-f stringify.sed" |
252b5132 | 1870 | |
92b93329 | 1871 | fragment <<EOF |
60bcf0fa | 1872 | { |
252b5132 RH |
1873 | *isfile = 0; |
1874 | ||
1049f94e | 1875 | if (link_info.relocatable && config.build_constructors) |
597e2591 | 1876 | return |
252b5132 | 1877 | EOF |
afd7a018 AM |
1878 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c |
1879 | echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c | |
1880 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c | |
1881 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c | |
1882 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c | |
61585df2 | 1883 | if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else |
afd7a018 AM |
1884 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c |
1885 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c | |
db6751f2 | 1886 | fi |
36af4a4e JJ |
1887 | if test -n "$GENERATE_PIE_SCRIPT" ; then |
1888 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
8c37241b JJ |
1889 | echo ' ; else if (link_info.pie && link_info.combreloc' >> e${EMULATION_NAME}.c |
1890 | echo ' && link_info.relro' >> e${EMULATION_NAME}.c | |
fbfca19e | 1891 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 1892 | sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c |
36af4a4e | 1893 | echo ' ; else if (link_info.pie && link_info.combreloc) return' >> e${EMULATION_NAME}.c |
afd7a018 | 1894 | sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c |
36af4a4e | 1895 | fi |
afd7a018 AM |
1896 | echo ' ; else if (link_info.pie) return' >> e${EMULATION_NAME}.c |
1897 | sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c | |
36af4a4e | 1898 | fi |
252b5132 | 1899 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then |
82434356 | 1900 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then |
8c37241b JJ |
1901 | echo ' ; else if (link_info.shared && link_info.combreloc' >> e${EMULATION_NAME}.c |
1902 | echo ' && link_info.relro' >> e${EMULATION_NAME}.c | |
fbfca19e | 1903 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 1904 | sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c |
db6751f2 | 1905 | echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c |
afd7a018 | 1906 | sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c |
82434356 | 1907 | fi |
afd7a018 AM |
1908 | echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c |
1909 | sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c | |
252b5132 | 1910 | fi |
82434356 | 1911 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then |
8c37241b | 1912 | echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c |
fbfca19e | 1913 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 AM |
1914 | sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c |
1915 | echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c | |
1916 | sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c | |
82434356 | 1917 | fi |
afd7a018 AM |
1918 | echo ' ; else return' >> e${EMULATION_NAME}.c |
1919 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c | |
1920 | echo '; }' >> e${EMULATION_NAME}.c | |
252b5132 RH |
1921 | |
1922 | else | |
1923 | # Scripts read from the filesystem. | |
1924 | ||
92b93329 | 1925 | fragment <<EOF |
60bcf0fa | 1926 | { |
252b5132 RH |
1927 | *isfile = 1; |
1928 | ||
1049f94e | 1929 | if (link_info.relocatable && config.build_constructors) |
252b5132 | 1930 | return "ldscripts/${EMULATION_NAME}.xu"; |
1049f94e | 1931 | else if (link_info.relocatable) |
252b5132 RH |
1932 | return "ldscripts/${EMULATION_NAME}.xr"; |
1933 | else if (!config.text_read_only) | |
1934 | return "ldscripts/${EMULATION_NAME}.xbn"; | |
a060b769 AM |
1935 | EOF |
1936 | if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : | |
1937 | else | |
92b93329 | 1938 | fragment <<EOF |
252b5132 RH |
1939 | else if (!config.magic_demand_paged) |
1940 | return "ldscripts/${EMULATION_NAME}.xn"; | |
a060b769 AM |
1941 | EOF |
1942 | fi | |
36af4a4e JJ |
1943 | if test -n "$GENERATE_PIE_SCRIPT" ; then |
1944 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 1945 | fragment <<EOF |
8c37241b | 1946 | else if (link_info.pie && link_info.combreloc |
fbfca19e | 1947 | && link_info.relro && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 1948 | return "ldscripts/${EMULATION_NAME}.xdw"; |
36af4a4e JJ |
1949 | else if (link_info.pie && link_info.combreloc) |
1950 | return "ldscripts/${EMULATION_NAME}.xdc"; | |
1951 | EOF | |
1952 | fi | |
92b93329 | 1953 | fragment <<EOF |
36af4a4e JJ |
1954 | else if (link_info.pie) |
1955 | return "ldscripts/${EMULATION_NAME}.xd"; | |
1956 | EOF | |
1957 | fi | |
a060b769 AM |
1958 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then |
1959 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 1960 | fragment <<EOF |
8c37241b | 1961 | else if (link_info.shared && link_info.combreloc |
fbfca19e | 1962 | && link_info.relro && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 1963 | return "ldscripts/${EMULATION_NAME}.xsw"; |
a060b769 AM |
1964 | else if (link_info.shared && link_info.combreloc) |
1965 | return "ldscripts/${EMULATION_NAME}.xsc"; | |
1966 | EOF | |
1967 | fi | |
92b93329 | 1968 | fragment <<EOF |
252b5132 RH |
1969 | else if (link_info.shared) |
1970 | return "ldscripts/${EMULATION_NAME}.xs"; | |
a060b769 AM |
1971 | EOF |
1972 | fi | |
1973 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 1974 | fragment <<EOF |
8c37241b | 1975 | else if (link_info.combreloc && link_info.relro |
fbfca19e | 1976 | && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 1977 | return "ldscripts/${EMULATION_NAME}.xw"; |
a060b769 AM |
1978 | else if (link_info.combreloc) |
1979 | return "ldscripts/${EMULATION_NAME}.xc"; | |
1980 | EOF | |
1981 | fi | |
92b93329 | 1982 | fragment <<EOF |
252b5132 RH |
1983 | else |
1984 | return "ldscripts/${EMULATION_NAME}.x"; | |
1985 | } | |
252b5132 | 1986 | |
3b108066 | 1987 | EOF |
41392f03 AM |
1988 | fi |
1989 | fi | |
3b108066 | 1990 | |
41392f03 | 1991 | if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then |
3b108066 | 1992 | |
e0ee487b | 1993 | if test -n "$PARSE_AND_LIST_PROLOGUE" ; then |
92b93329 | 1994 | fragment <<EOF |
e0ee487b L |
1995 | $PARSE_AND_LIST_PROLOGUE |
1996 | EOF | |
1997 | fi | |
1998 | ||
92b93329 | 1999 | fragment <<EOF |
e0ee487b | 2000 | |
6c1439be L |
2001 | #define OPTION_DISABLE_NEW_DTAGS (400) |
2002 | #define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1) | |
a1ab1d2a | 2003 | #define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1) |
65765700 | 2004 | #define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1) |
b58f81ae | 2005 | #define OPTION_EXCLUDE_LIBS (OPTION_EH_FRAME_HDR + 1) |
fdc90cb4 | 2006 | #define OPTION_HASH_STYLE (OPTION_EXCLUDE_LIBS + 1) |
c0065db7 | 2007 | #define OPTION_BUILD_ID (OPTION_HASH_STYLE + 1) |
e13629bc | 2008 | |
3bcf5557 | 2009 | static void |
0c7a8e5a AM |
2010 | gld${EMULATION_NAME}_add_options |
2011 | (int ns, char **shortopts, int nl, struct option **longopts, | |
2012 | int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED) | |
e0ee487b | 2013 | { |
3bcf5557 AM |
2014 | static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:"; |
2015 | static const struct option xtra_long[] = { | |
c0065db7 | 2016 | {"build-id", optional_argument, NULL, OPTION_BUILD_ID}, |
e0ee487b | 2017 | EOF |
e0ee487b L |
2018 | |
2019 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
92b93329 | 2020 | fragment <<EOF |
3bcf5557 AM |
2021 | {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS}, |
2022 | {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS}, | |
2023 | {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR}, | |
b58f81ae | 2024 | {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS}, |
fdc90cb4 | 2025 | {"hash-style", required_argument, NULL, OPTION_HASH_STYLE}, |
3bcf5557 | 2026 | {"Bgroup", no_argument, NULL, OPTION_GROUP}, |
e0ee487b L |
2027 | EOF |
2028 | fi | |
2029 | ||
2030 | if test -n "$PARSE_AND_LIST_LONGOPTS" ; then | |
92b93329 | 2031 | fragment <<EOF |
3bcf5557 | 2032 | $PARSE_AND_LIST_LONGOPTS |
e0ee487b L |
2033 | EOF |
2034 | fi | |
2035 | ||
92b93329 | 2036 | fragment <<EOF |
3bcf5557 AM |
2037 | {NULL, no_argument, NULL, 0} |
2038 | }; | |
2039 | ||
2040 | *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short)); | |
2041 | memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short)); | |
2042 | *longopts = (struct option *) | |
2043 | xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); | |
2044 | memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); | |
2045 | } | |
04925e1e | 2046 | |
24382dca | 2047 | #define DEFAULT_BUILD_ID_STYLE "sha1" |
c0065db7 | 2048 | |
3bcf5557 | 2049 | static bfd_boolean |
0c7a8e5a | 2050 | gld${EMULATION_NAME}_handle_option (int optc) |
e0ee487b | 2051 | { |
e0ee487b L |
2052 | switch (optc) |
2053 | { | |
2054 | default: | |
3bcf5557 | 2055 | return FALSE; |
6c1439be | 2056 | |
c0065db7 RM |
2057 | case OPTION_BUILD_ID: |
2058 | if (link_info.emit_note_gnu_build_id != NULL) | |
2059 | { | |
2060 | free (link_info.emit_note_gnu_build_id); | |
2061 | link_info.emit_note_gnu_build_id = NULL; | |
2062 | } | |
2063 | if (optarg == NULL) | |
2064 | optarg = DEFAULT_BUILD_ID_STYLE; | |
2065 | if (strcmp (optarg, "none")) | |
2066 | link_info.emit_note_gnu_build_id = xstrdup (optarg); | |
2067 | break; | |
2068 | ||
e0ee487b | 2069 | EOF |
e0ee487b L |
2070 | |
2071 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
92b93329 | 2072 | fragment <<EOF |
6c1439be | 2073 | case OPTION_DISABLE_NEW_DTAGS: |
b34976b6 | 2074 | link_info.new_dtags = FALSE; |
6c1439be L |
2075 | break; |
2076 | ||
2077 | case OPTION_ENABLE_NEW_DTAGS: | |
b34976b6 | 2078 | link_info.new_dtags = TRUE; |
6c1439be L |
2079 | break; |
2080 | ||
65765700 | 2081 | case OPTION_EH_FRAME_HDR: |
b34976b6 | 2082 | link_info.eh_frame_hdr = TRUE; |
65765700 JJ |
2083 | break; |
2084 | ||
a1ab1d2a UD |
2085 | case OPTION_GROUP: |
2086 | link_info.flags_1 |= (bfd_vma) DF_1_GROUP; | |
2087 | /* Groups must be self-contained. */ | |
560e09e9 NC |
2088 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; |
2089 | link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR; | |
a1ab1d2a UD |
2090 | break; |
2091 | ||
b58f81ae DJ |
2092 | case OPTION_EXCLUDE_LIBS: |
2093 | add_excluded_libs (optarg); | |
2094 | break; | |
2095 | ||
fdc90cb4 JJ |
2096 | case OPTION_HASH_STYLE: |
2097 | link_info.emit_hash = FALSE; | |
2098 | link_info.emit_gnu_hash = FALSE; | |
2099 | if (strcmp (optarg, "sysv") == 0) | |
2100 | link_info.emit_hash = TRUE; | |
2101 | else if (strcmp (optarg, "gnu") == 0) | |
2102 | link_info.emit_gnu_hash = TRUE; | |
2103 | else if (strcmp (optarg, "both") == 0) | |
2104 | { | |
2105 | link_info.emit_hash = TRUE; | |
2106 | link_info.emit_gnu_hash = TRUE; | |
2107 | } | |
2108 | else | |
2109 | einfo (_("%P%F: invalid hash style \`%s'\n"), optarg); | |
2110 | break; | |
2111 | ||
e0ee487b L |
2112 | case 'z': |
2113 | if (strcmp (optarg, "initfirst") == 0) | |
2114 | link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST; | |
2115 | else if (strcmp (optarg, "interpose") == 0) | |
2116 | link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE; | |
2117 | else if (strcmp (optarg, "loadfltr") == 0) | |
2118 | link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR; | |
2119 | else if (strcmp (optarg, "nodefaultlib") == 0) | |
2120 | link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB; | |
2121 | else if (strcmp (optarg, "nodelete") == 0) | |
2122 | link_info.flags_1 |= (bfd_vma) DF_1_NODELETE; | |
2123 | else if (strcmp (optarg, "nodlopen") == 0) | |
2124 | link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN; | |
2125 | else if (strcmp (optarg, "nodump") == 0) | |
2126 | link_info.flags_1 |= (bfd_vma) DF_1_NODUMP; | |
2127 | else if (strcmp (optarg, "now") == 0) | |
2128 | { | |
2129 | link_info.flags |= (bfd_vma) DF_BIND_NOW; | |
2130 | link_info.flags_1 |= (bfd_vma) DF_1_NOW; | |
2131 | } | |
5fa222e4 AM |
2132 | else if (strcmp (optarg, "lazy") == 0) |
2133 | { | |
2134 | link_info.flags &= ~(bfd_vma) DF_BIND_NOW; | |
2135 | link_info.flags_1 &= ~(bfd_vma) DF_1_NOW; | |
2136 | } | |
e0ee487b L |
2137 | else if (strcmp (optarg, "origin") == 0) |
2138 | { | |
2139 | link_info.flags |= (bfd_vma) DF_ORIGIN; | |
2140 | link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN; | |
2141 | } | |
a1ab1d2a | 2142 | else if (strcmp (optarg, "defs") == 0) |
560e09e9 | 2143 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; |
aa713662 | 2144 | else if (strcmp (optarg, "muldefs") == 0) |
b34976b6 | 2145 | link_info.allow_multiple_definition = TRUE; |
db6751f2 | 2146 | else if (strcmp (optarg, "combreloc") == 0) |
b34976b6 | 2147 | link_info.combreloc = TRUE; |
db6751f2 | 2148 | else if (strcmp (optarg, "nocombreloc") == 0) |
b34976b6 | 2149 | link_info.combreloc = FALSE; |
8bd621d8 | 2150 | else if (strcmp (optarg, "nocopyreloc") == 0) |
0c7a8e5a | 2151 | link_info.nocopyreloc = TRUE; |
9ee5e499 JJ |
2152 | else if (strcmp (optarg, "execstack") == 0) |
2153 | { | |
2154 | link_info.execstack = TRUE; | |
2155 | link_info.noexecstack = FALSE; | |
2156 | } | |
2157 | else if (strcmp (optarg, "noexecstack") == 0) | |
2158 | { | |
2159 | link_info.noexecstack = TRUE; | |
2160 | link_info.execstack = FALSE; | |
2161 | } | |
88b882e9 L |
2162 | EOF |
2163 | ||
2164 | if test -n "$COMMONPAGESIZE"; then | |
92b93329 | 2165 | fragment <<EOF |
8c37241b JJ |
2166 | else if (strcmp (optarg, "relro") == 0) |
2167 | link_info.relro = TRUE; | |
2168 | else if (strcmp (optarg, "norelro") == 0) | |
2169 | link_info.relro = FALSE; | |
88b882e9 L |
2170 | EOF |
2171 | fi | |
2172 | ||
92b93329 | 2173 | fragment <<EOF |
0112cd26 | 2174 | else if (CONST_STRNEQ (optarg, "max-page-size=")) |
24718e3b L |
2175 | { |
2176 | char *end; | |
0112cd26 | 2177 | |
24718e3b | 2178 | config.maxpagesize = strtoul (optarg + 14, &end, 0); |
b8142865 | 2179 | if (*end || (config.maxpagesize & (config.maxpagesize - 1)) != 0) |
24718e3b L |
2180 | einfo (_("%P%F: invalid maxium page size \`%s'\n"), |
2181 | optarg + 14); | |
2182 | } | |
0112cd26 | 2183 | else if (CONST_STRNEQ (optarg, "common-page-size=")) |
24718e3b L |
2184 | { |
2185 | char *end; | |
2186 | config.commonpagesize = strtoul (optarg + 17, &end, 0); | |
b8142865 L |
2187 | if (*end |
2188 | || (config.commonpagesize & (config.commonpagesize - 1)) != 0) | |
24718e3b L |
2189 | einfo (_("%P%F: invalid common page size \`%s'\n"), |
2190 | optarg + 17); | |
2191 | } | |
e0ee487b | 2192 | /* What about the other Solaris -z options? FIXME. */ |
6c1439be | 2193 | break; |
e0ee487b L |
2194 | EOF |
2195 | fi | |
2196 | ||
2197 | if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then | |
92b93329 | 2198 | fragment <<EOF |
e0ee487b L |
2199 | $PARSE_AND_LIST_ARGS_CASES |
2200 | EOF | |
2201 | fi | |
2202 | ||
92b93329 | 2203 | fragment <<EOF |
e0ee487b L |
2204 | } |
2205 | ||
3bcf5557 | 2206 | return TRUE; |
e0ee487b L |
2207 | } |
2208 | ||
41392f03 | 2209 | EOF |
41392f03 | 2210 | |
4b209b22 | 2211 | if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then |
92b93329 | 2212 | fragment <<EOF |
41392f03 | 2213 | |
e0ee487b | 2214 | static void |
0c7a8e5a | 2215 | gld${EMULATION_NAME}_list_options (FILE * file) |
e0ee487b | 2216 | { |
442996ee AM |
2217 | fprintf (file, _("\ |
2218 | --build-id[=STYLE] Generate build ID note\n")); | |
e0ee487b | 2219 | EOF |
e0ee487b L |
2220 | |
2221 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
92b93329 | 2222 | fragment <<EOF |
442996ee AM |
2223 | fprintf (file, _("\ |
2224 | -Bgroup Selects group name lookup rules for DSO\n")); | |
2225 | fprintf (file, _("\ | |
2226 | --disable-new-dtags Disable new dynamic tags\n")); | |
2227 | fprintf (file, _("\ | |
2228 | --enable-new-dtags Enable new dynamic tags\n")); | |
2229 | fprintf (file, _("\ | |
2230 | --eh-frame-hdr Create .eh_frame_hdr section\n")); | |
2231 | fprintf (file, _("\ | |
2232 | --hash-style=STYLE Set hash style to sysv, gnu or both\n")); | |
2233 | fprintf (file, _("\ | |
2234 | -z combreloc Merge dynamic relocs into one section and sort\n")); | |
2235 | fprintf (file, _("\ | |
2236 | -z defs Report unresolved symbols in object files.\n")); | |
2237 | fprintf (file, _("\ | |
2238 | -z execstack Mark executable as requiring executable stack\n")); | |
2239 | fprintf (file, _("\ | |
2240 | -z initfirst Mark DSO to be initialized first at runtime\n")); | |
2241 | fprintf (file, _("\ | |
2242 | -z interpose Mark object to interpose all DSOs but executable\n")); | |
2243 | fprintf (file, _("\ | |
2244 | -z lazy Mark object lazy runtime binding (default)\n")); | |
2245 | fprintf (file, _("\ | |
2246 | -z loadfltr Mark object requiring immediate process\n")); | |
2247 | fprintf (file, _("\ | |
2248 | -z muldefs Allow multiple definitions\n")); | |
2249 | fprintf (file, _("\ | |
2250 | -z nocombreloc Don't merge dynamic relocs into one section\n")); | |
2251 | fprintf (file, _("\ | |
2252 | -z nocopyreloc Don't create copy relocs\n")); | |
2253 | fprintf (file, _("\ | |
2254 | -z nodefaultlib Mark object not to use default search paths\n")); | |
2255 | fprintf (file, _("\ | |
2256 | -z nodelete Mark DSO non-deletable at runtime\n")); | |
2257 | fprintf (file, _("\ | |
2258 | -z nodlopen Mark DSO not available to dlopen\n")); | |
2259 | fprintf (file, _("\ | |
2260 | -z nodump Mark DSO not available to dldump\n")); | |
2261 | fprintf (file, _("\ | |
2262 | -z noexecstack Mark executable as not requiring executable stack\n")); | |
88b882e9 L |
2263 | EOF |
2264 | ||
2265 | if test -n "$COMMONPAGESIZE"; then | |
92b93329 | 2266 | fragment <<EOF |
442996ee AM |
2267 | fprintf (file, _("\ |
2268 | -z norelro Don't create RELRO program header\n")); | |
88b882e9 L |
2269 | EOF |
2270 | fi | |
2271 | ||
92b93329 | 2272 | fragment <<EOF |
442996ee AM |
2273 | fprintf (file, _("\ |
2274 | -z now Mark object non-lazy runtime binding\n")); | |
2275 | fprintf (file, _("\ | |
2276 | -z origin Mark object requiring immediate \$ORIGIN\n\ | |
2277 | processing at runtime\n")); | |
88b882e9 L |
2278 | EOF |
2279 | ||
2280 | if test -n "$COMMONPAGESIZE"; then | |
92b93329 | 2281 | fragment <<EOF |
442996ee AM |
2282 | fprintf (file, _("\ |
2283 | -z relro Create RELRO program header\n")); | |
88b882e9 L |
2284 | EOF |
2285 | fi | |
2286 | ||
92b93329 | 2287 | fragment <<EOF |
442996ee AM |
2288 | fprintf (file, _("\ |
2289 | -z max-page-size=SIZE Set maximum page size to SIZE\n")); | |
2290 | fprintf (file, _("\ | |
2291 | -z common-page-size=SIZE Set common page size to SIZE\n")); | |
2292 | fprintf (file, _("\ | |
2293 | -z KEYWORD Ignored for Solaris compatibility\n")); | |
e0ee487b L |
2294 | EOF |
2295 | fi | |
2296 | ||
2297 | if test -n "$PARSE_AND_LIST_OPTIONS" ; then | |
92b93329 | 2298 | fragment <<EOF |
e0ee487b L |
2299 | $PARSE_AND_LIST_OPTIONS |
2300 | EOF | |
2301 | fi | |
2302 | ||
92b93329 | 2303 | fragment <<EOF |
e0ee487b L |
2304 | } |
2305 | EOF | |
e0ee487b L |
2306 | |
2307 | if test -n "$PARSE_AND_LIST_EPILOGUE" ; then | |
92b93329 | 2308 | fragment <<EOF |
e0ee487b L |
2309 | $PARSE_AND_LIST_EPILOGUE |
2310 | EOF | |
2311 | fi | |
41392f03 AM |
2312 | fi |
2313 | else | |
92b93329 | 2314 | fragment <<EOF |
3bcf5557 AM |
2315 | #define gld${EMULATION_NAME}_add_options NULL |
2316 | #define gld${EMULATION_NAME}_handle_option NULL | |
41392f03 | 2317 | EOF |
4b209b22 | 2318 | if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then |
92b93329 | 2319 | fragment <<EOF |
4b209b22 | 2320 | #define gld${EMULATION_NAME}_list_options NULL |
41392f03 AM |
2321 | EOF |
2322 | fi | |
2323 | fi | |
e0ee487b | 2324 | |
92b93329 | 2325 | fragment <<EOF |
252b5132 | 2326 | |
60bcf0fa | 2327 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = |
252b5132 | 2328 | { |
41392f03 AM |
2329 | ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse}, |
2330 | ${LDEMUL_SYSLIB-syslib_default}, | |
2331 | ${LDEMUL_HLL-hll_default}, | |
2332 | ${LDEMUL_AFTER_PARSE-after_parse_default}, | |
2333 | ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open}, | |
eaeb0a9d | 2334 | ${LDEMUL_AFTER_ALLOCATION-gld${EMULATION_NAME}_after_allocation}, |
41392f03 AM |
2335 | ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default}, |
2336 | ${LDEMUL_CHOOSE_TARGET-ldemul_default_target}, | |
2337 | ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation}, | |
2338 | ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script}, | |
252b5132 RH |
2339 | "${EMULATION_NAME}", |
2340 | "${OUTPUT_FORMAT}", | |
eaeb0a9d | 2341 | ${LDEMUL_FINISH-finish_default}, |
41392f03 AM |
2342 | ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL}, |
2343 | ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive}, | |
2344 | ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan}, | |
2345 | ${LDEMUL_SET_SYMBOLS-NULL}, | |
3bcf5557 AM |
2346 | ${LDEMUL_PARSE_ARGS-NULL}, |
2347 | gld${EMULATION_NAME}_add_options, | |
2348 | gld${EMULATION_NAME}_handle_option, | |
41392f03 | 2349 | ${LDEMUL_UNRECOGNIZED_FILE-NULL}, |
4b209b22 | 2350 | ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options}, |
4a43e768 | 2351 | ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols}, |
41392f03 | 2352 | ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL}, |
fac1652d | 2353 | ${LDEMUL_NEW_VERS_PATTERN-NULL} |
252b5132 RH |
2354 | }; |
2355 | EOF |