Commit | Line | Data |
---|---|---|
252b5132 RH |
1 | # This shell script emits a C file. -*- C -*- |
2 | # It does some substitutions. | |
3 | # This file is now misnamed, because it supports both 32 bit and 64 bit | |
4 | # ELF emulations. | |
5 | test -z "${ELFSIZE}" && ELFSIZE=32 | |
86af25fe L |
6 | if [ -z "$MACHINE" ]; then |
7 | OUTPUT_ARCH=${ARCH} | |
8 | else | |
9 | OUTPUT_ARCH=${ARCH}:${MACHINE} | |
10 | fi | |
92b93329 | 11 | fragment <<EOF |
252b5132 RH |
12 | /* This file is is generated by a shell script. DO NOT EDIT! */ |
13 | ||
14 | /* ${ELFSIZE} bit ELF emulation code for ${EMULATION_NAME} | |
4b95cf5c | 15 | Copyright (C) 1991-2014 Free Software Foundation, Inc. |
252b5132 RH |
16 | Written by Steve Chamberlain <sac@cygnus.com> |
17 | ELF support by Ian Lance Taylor <ian@cygnus.com> | |
18 | ||
f96b4a7b NC |
19 | This file is part of the GNU Binutils. |
20 | ||
21 | This program is free software; you can redistribute it and/or modify | |
22 | it under the terms of the GNU General Public License as published by | |
23 | the Free Software Foundation; either version 3 of the License, or | |
24 | (at your option) any later version. | |
25 | ||
26 | This program is distributed in the hope that it will be useful, | |
27 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
28 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
29 | GNU General Public License for more details. | |
30 | ||
31 | You should have received a copy of the GNU General Public License | |
32 | along with this program; if not, write to the Free Software | |
33 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
34 | MA 02110-1301, USA. */ | |
252b5132 RH |
35 | |
36 | #define TARGET_IS_${EMULATION_NAME} | |
37 | ||
252b5132 | 38 | #include "sysdep.h" |
3db64b00 | 39 | #include "bfd.h" |
1c9acd94 | 40 | #include "libiberty.h" |
42627821 | 41 | #include "filenames.h" |
3882b010 | 42 | #include "safe-ctype.h" |
fcf65871 | 43 | #include "getopt.h" |
24382dca RM |
44 | #include "md5.h" |
45 | #include "sha1.h" | |
46 | #include <fcntl.h> | |
252b5132 RH |
47 | |
48 | #include "bfdlink.h" | |
49 | ||
50 | #include "ld.h" | |
51 | #include "ldmain.h" | |
252b5132 RH |
52 | #include "ldmisc.h" |
53 | #include "ldexp.h" | |
54 | #include "ldlang.h" | |
b71e2778 AM |
55 | #include "ldfile.h" |
56 | #include "ldemul.h" | |
df2a7313 | 57 | #include <ldgram.h> |
e0ee487b | 58 | #include "elf/common.h" |
ecca9871 | 59 | #include "elf-bfd.h" |
07f1e47a | 60 | #include "filenames.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 | |
a5244b7e | 73 | *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*) |
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/:.*//'`); |
66be1055 | 103 | input_flags.dynamic = ${DYNAMIC_LINK-TRUE}; |
b34976b6 | 104 | config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`; |
4724d37e | 105 | config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`; |
663fa543 L |
106 | } |
107 | ||
822b8bf4 | 108 | EOF |
663fa543 | 109 | fi |
822b8bf4 | 110 | |
4a43e768 | 111 | if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then |
92b93329 | 112 | fragment <<EOF |
ddbb8a31 | 113 | /* Handle the generation of DT_NEEDED tags. */ |
4a43e768 AM |
114 | |
115 | static bfd_boolean | |
116 | gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry) | |
117 | { | |
96d56e9f | 118 | int link_class = 0; |
4a43e768 AM |
119 | |
120 | /* Tell the ELF linker that we don't want the output file to have a | |
121 | DT_NEEDED entry for this file, unless it is used to resolve | |
122 | references in a regular object. */ | |
66be1055 | 123 | if (entry->flags.add_DT_NEEDED_for_regular) |
96d56e9f | 124 | link_class = DYN_AS_NEEDED; |
e56f61be L |
125 | |
126 | /* Tell the ELF linker that we don't want the output file to have a | |
127 | DT_NEEDED entry for any dynamic library in DT_NEEDED tags from | |
128 | this file at all. */ | |
66be1055 | 129 | if (!entry->flags.add_DT_NEEDED_for_dynamic) |
96d56e9f | 130 | link_class |= DYN_NO_ADD_NEEDED; |
e56f61be | 131 | |
66be1055 | 132 | if (entry->flags.just_syms |
12b9ff6c L |
133 | && (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) != 0) |
134 | einfo (_("%P%F: --just-symbols may not be used on DSO: %B\n"), | |
135 | entry->the_bfd); | |
136 | ||
ddbb8a31 | 137 | if (link_class == 0 |
e56f61be L |
138 | || (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0) |
139 | return FALSE; | |
140 | ||
1e9cc1c2 | 141 | bfd_elf_set_dyn_lib_class (entry->the_bfd, |
4724d37e | 142 | (enum dynamic_lib_link_class) link_class); |
4a43e768 AM |
143 | |
144 | /* Continue on with normal load_symbols processing. */ | |
145 | return FALSE; | |
146 | } | |
147 | EOF | |
148 | fi | |
149 | ||
92b93329 | 150 | fragment <<EOF |
252b5132 RH |
151 | |
152 | /* These variables are required to pass information back and forth | |
153 | between after_open and check_needed and stat_needed and vercheck. */ | |
154 | ||
155 | static struct bfd_link_needed_list *global_needed; | |
156 | static struct stat global_stat; | |
e13629bc | 157 | static lang_input_statement_type *global_found; |
252b5132 | 158 | static struct bfd_link_needed_list *global_vercheck_needed; |
b34976b6 | 159 | static bfd_boolean global_vercheck_failed; |
252b5132 | 160 | |
7ee314fa AM |
161 | /* These variables are used to implement target options */ |
162 | ||
163 | static char *audit; /* colon (typically) separated list of libs */ | |
164 | static char *depaudit; /* colon (typically) separated list of libs */ | |
252b5132 | 165 | |
30e8ee25 AM |
166 | /* Style of .note.gnu.build-id section. */ |
167 | static const char *emit_note_gnu_build_id; | |
168 | ||
04925e1e AM |
169 | /* On Linux, it's possible to have different versions of the same |
170 | shared library linked against different versions of libc. The | |
171 | dynamic linker somehow tags which libc version to use in | |
172 | /etc/ld.so.cache, and, based on the libc that it sees in the | |
173 | executable, chooses which version of the shared library to use. | |
252b5132 | 174 | |
04925e1e AM |
175 | We try to do a similar check here by checking whether this shared |
176 | library needs any other shared libraries which may conflict with | |
177 | libraries we have already included in the link. If it does, we | |
178 | skip it, and try to find another shared library farther on down the | |
179 | link path. | |
252b5132 | 180 | |
04925e1e AM |
181 | This is called via lang_for_each_input_file. |
182 | GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object | |
f813923c | 183 | which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find |
04925e1e | 184 | a conflicting version. */ |
252b5132 | 185 | |
04925e1e | 186 | static void |
0c7a8e5a | 187 | gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s) |
04925e1e | 188 | { |
1c9acd94 | 189 | const char *soname; |
04925e1e | 190 | struct bfd_link_needed_list *l; |
252b5132 | 191 | |
04925e1e AM |
192 | if (global_vercheck_failed) |
193 | return; | |
194 | if (s->the_bfd == NULL | |
195 | || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0) | |
196 | return; | |
252b5132 | 197 | |
04925e1e AM |
198 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
199 | if (soname == NULL) | |
fed2999d | 200 | soname = lbasename (bfd_get_filename (s->the_bfd)); |
04925e1e AM |
201 | |
202 | for (l = global_vercheck_needed; l != NULL; l = l->next) | |
203 | { | |
204 | const char *suffix; | |
205 | ||
42627821 | 206 | if (filename_cmp (soname, l->name) == 0) |
04925e1e AM |
207 | { |
208 | /* Probably can't happen, but it's an easy check. */ | |
209 | continue; | |
252b5132 RH |
210 | } |
211 | ||
04925e1e | 212 | if (strchr (l->name, '/') != NULL) |
252b5132 RH |
213 | continue; |
214 | ||
04925e1e AM |
215 | suffix = strstr (l->name, ".so."); |
216 | if (suffix == NULL) | |
217 | continue; | |
218 | ||
219 | suffix += sizeof ".so." - 1; | |
220 | ||
42627821 | 221 | if (filename_ncmp (soname, l->name, suffix - l->name) == 0) |
04925e1e AM |
222 | { |
223 | /* Here we know that S is a dynamic object FOO.SO.VER1, and | |
0c7a8e5a AM |
224 | the object we are considering needs a dynamic object |
225 | FOO.SO.VER2, and VER1 and VER2 are different. This | |
226 | appears to be a version mismatch, so we tell the caller | |
227 | to try a different version of this library. */ | |
b34976b6 | 228 | global_vercheck_failed = TRUE; |
04925e1e AM |
229 | return; |
230 | } | |
252b5132 RH |
231 | } |
232 | } | |
233 | ||
252b5132 | 234 | |
04925e1e AM |
235 | /* See if an input file matches a DT_NEEDED entry by running stat on |
236 | the file. */ | |
237 | ||
238 | static void | |
0c7a8e5a | 239 | gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s) |
252b5132 | 240 | { |
04925e1e AM |
241 | struct stat st; |
242 | const char *suffix; | |
243 | const char *soname; | |
252b5132 | 244 | |
e13629bc | 245 | if (global_found != NULL) |
04925e1e AM |
246 | return; |
247 | if (s->the_bfd == NULL) | |
248 | return; | |
e13629bc AM |
249 | |
250 | /* If this input file was an as-needed entry, and wasn't found to be | |
251 | needed at the stage it was linked, then don't say we have loaded it. */ | |
252 | if ((bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0) | |
7cedef86 | 253 | return; |
04925e1e AM |
254 | |
255 | if (bfd_stat (s->the_bfd, &st) != 0) | |
252b5132 | 256 | { |
04925e1e AM |
257 | einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd); |
258 | return; | |
259 | } | |
252b5132 | 260 | |
9eabd475 ZW |
261 | /* Some operating systems, e.g. Windows, do not provide a meaningful |
262 | st_ino; they always set it to zero. (Windows does provide a | |
263 | meaningful st_dev.) Do not indicate a duplicate library in that | |
264 | case. While there is no guarantee that a system that provides | |
265 | meaningful inode numbers will never set st_ino to zero, this is | |
266 | merely an optimization, so we do not need to worry about false | |
267 | negatives. */ | |
04925e1e | 268 | if (st.st_dev == global_stat.st_dev |
9eabd475 ZW |
269 | && st.st_ino == global_stat.st_ino |
270 | && st.st_ino != 0) | |
04925e1e | 271 | { |
e13629bc | 272 | global_found = s; |
04925e1e AM |
273 | return; |
274 | } | |
252b5132 | 275 | |
04925e1e AM |
276 | /* We issue a warning if it looks like we are including two |
277 | different versions of the same shared library. For example, | |
278 | there may be a problem if -lc picks up libc.so.6 but some other | |
279 | shared library has a DT_NEEDED entry of libc.so.5. This is a | |
f813923c | 280 | heuristic test, and it will only work if the name looks like |
04925e1e AM |
281 | NAME.so.VERSION. FIXME: Depending on file names is error-prone. |
282 | If we really want to issue warnings about mixing version numbers | |
283 | of shared libraries, we need to find a better way. */ | |
252b5132 | 284 | |
04925e1e AM |
285 | if (strchr (global_needed->name, '/') != NULL) |
286 | return; | |
287 | suffix = strstr (global_needed->name, ".so."); | |
288 | if (suffix == NULL) | |
289 | return; | |
290 | suffix += sizeof ".so." - 1; | |
252b5132 | 291 | |
04925e1e AM |
292 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
293 | if (soname == NULL) | |
fed2999d | 294 | soname = lbasename (s->filename); |
252b5132 | 295 | |
42627821 | 296 | if (filename_ncmp (soname, global_needed->name, suffix - global_needed->name) == 0) |
04925e1e | 297 | einfo ("%P: warning: %s, needed by %B, may conflict with %s\n", |
1c9acd94 | 298 | global_needed->name, global_needed->by, soname); |
252b5132 RH |
299 | } |
300 | ||
e56f61be L |
301 | struct dt_needed |
302 | { | |
303 | bfd *by; | |
304 | const char *name; | |
305 | }; | |
04925e1e | 306 | |
252b5132 RH |
307 | /* This function is called for each possible name for a dynamic object |
308 | named by a DT_NEEDED entry. The FORCE parameter indicates whether | |
309 | to skip the check for a conflicting version. */ | |
310 | ||
b34976b6 | 311 | static bfd_boolean |
e56f61be L |
312 | gld${EMULATION_NAME}_try_needed (struct dt_needed *needed, |
313 | int force) | |
252b5132 RH |
314 | { |
315 | bfd *abfd; | |
e56f61be | 316 | const char *name = needed->name; |
ec4eb78a | 317 | const char *soname; |
96d56e9f | 318 | int link_class; |
252b5132 | 319 | |
f13a99db | 320 | abfd = bfd_openr (name, bfd_get_target (link_info.output_bfd)); |
252b5132 | 321 | if (abfd == NULL) |
b34976b6 | 322 | return FALSE; |
4a114e3e L |
323 | |
324 | /* Linker needs to decompress sections. */ | |
325 | abfd->flags |= BFD_DECOMPRESS; | |
326 | ||
252b5132 RH |
327 | if (! bfd_check_format (abfd, bfd_object)) |
328 | { | |
cde43e70 | 329 | bfd_close (abfd); |
b34976b6 | 330 | return FALSE; |
252b5132 RH |
331 | } |
332 | if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0) | |
333 | { | |
cde43e70 | 334 | bfd_close (abfd); |
b34976b6 | 335 | return FALSE; |
252b5132 RH |
336 | } |
337 | ||
c4bb8067 | 338 | /* For DT_NEEDED, they have to match. */ |
f13a99db | 339 | if (abfd->xvec != link_info.output_bfd->xvec) |
c4bb8067 L |
340 | { |
341 | bfd_close (abfd); | |
b34976b6 | 342 | return FALSE; |
c4bb8067 L |
343 | } |
344 | ||
252b5132 RH |
345 | /* Check whether this object would include any conflicting library |
346 | versions. If FORCE is set, then we skip this check; we use this | |
347 | the second time around, if we couldn't find any compatible | |
348 | instance of the shared library. */ | |
349 | ||
350 | if (! force) | |
351 | { | |
91d6fa6a | 352 | struct bfd_link_needed_list *needs; |
252b5132 | 353 | |
91d6fa6a | 354 | if (! bfd_elf_get_bfd_needed_list (abfd, &needs)) |
252b5132 RH |
355 | einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd); |
356 | ||
91d6fa6a | 357 | if (needs != NULL) |
252b5132 | 358 | { |
91d6fa6a | 359 | global_vercheck_needed = needs; |
b34976b6 | 360 | global_vercheck_failed = FALSE; |
252b5132 RH |
361 | lang_for_each_input_file (gld${EMULATION_NAME}_vercheck); |
362 | if (global_vercheck_failed) | |
363 | { | |
cde43e70 | 364 | bfd_close (abfd); |
b34976b6 | 365 | /* Return FALSE to force the caller to move on to try |
0c7a8e5a | 366 | another file on the search path. */ |
b34976b6 | 367 | return FALSE; |
252b5132 RH |
368 | } |
369 | ||
370 | /* But wait! It gets much worse. On Linux, if a shared | |
0c7a8e5a AM |
371 | library does not use libc at all, we are supposed to skip |
372 | it the first time around in case we encounter a shared | |
373 | library later on with the same name which does use the | |
374 | version of libc that we want. This is much too horrible | |
375 | to use on any system other than Linux. */ | |
252b5132 RH |
376 | |
377 | EOF | |
378 | case ${target} in | |
a5244b7e | 379 | *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*) |
92b93329 | 380 | fragment <<EOF |
252b5132 RH |
381 | { |
382 | struct bfd_link_needed_list *l; | |
383 | ||
91d6fa6a | 384 | for (l = needs; l != NULL; l = l->next) |
0112cd26 | 385 | if (CONST_STRNEQ (l->name, "libc.so")) |
252b5132 RH |
386 | break; |
387 | if (l == NULL) | |
388 | { | |
cde43e70 | 389 | bfd_close (abfd); |
b34976b6 | 390 | return FALSE; |
252b5132 RH |
391 | } |
392 | } | |
393 | ||
394 | EOF | |
395 | ;; | |
396 | esac | |
92b93329 | 397 | fragment <<EOF |
252b5132 RH |
398 | } |
399 | } | |
400 | ||
401 | /* We've found a dynamic object matching the DT_NEEDED entry. */ | |
402 | ||
04925e1e AM |
403 | /* We have already checked that there is no other input file of the |
404 | same name. We must now check again that we are not including the | |
405 | same file twice. We need to do this because on many systems | |
406 | libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will | |
407 | reference libc.so.1. If we have already included libc.so, we | |
408 | don't want to include libc.so.1 if they are the same file, and we | |
409 | can only check that using stat. */ | |
410 | ||
411 | if (bfd_stat (abfd, &global_stat) != 0) | |
412 | einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd); | |
ec4eb78a L |
413 | |
414 | /* First strip off everything before the last '/'. */ | |
fed2999d | 415 | soname = lbasename (abfd->filename); |
ec4eb78a | 416 | |
cd6f1cf3 | 417 | if (verbose) |
ec4eb78a L |
418 | info_msg (_("found %s at %s\n"), soname, name); |
419 | ||
e13629bc | 420 | global_found = NULL; |
04925e1e | 421 | lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed); |
e13629bc | 422 | if (global_found != NULL) |
04925e1e | 423 | { |
b34976b6 | 424 | /* Return TRUE to indicate that we found the file, even though |
0c7a8e5a | 425 | we aren't going to do anything with it. */ |
b34976b6 | 426 | return TRUE; |
04925e1e AM |
427 | } |
428 | ||
4a43e768 AM |
429 | /* Specify the soname to use. */ |
430 | bfd_elf_set_dt_needed_name (abfd, soname); | |
04925e1e | 431 | |
4a43e768 AM |
432 | /* Tell the ELF linker that we don't want the output file to have a |
433 | DT_NEEDED entry for this file, unless it is used to resolve | |
434 | references in a regular object. */ | |
96d56e9f | 435 | link_class = DYN_DT_NEEDED; |
e56f61be L |
436 | |
437 | /* Tell the ELF linker that we don't want the output file to have a | |
438 | DT_NEEDED entry for this file at all if the entry is from a file | |
439 | with DYN_NO_ADD_NEEDED. */ | |
7e9f0867 AM |
440 | if (needed->by != NULL |
441 | && (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0) | |
96d56e9f | 442 | link_class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED; |
e56f61be | 443 | |
1e9cc1c2 | 444 | bfd_elf_set_dyn_lib_class (abfd, (enum dynamic_lib_link_class) link_class); |
04925e1e AM |
445 | |
446 | /* Add this file into the symbol table. */ | |
447 | if (! bfd_link_add_symbols (abfd, &link_info)) | |
8ff4c1f3 | 448 | einfo ("%F%B: error adding symbols: %E\n", abfd); |
04925e1e | 449 | |
b34976b6 | 450 | return TRUE; |
04925e1e AM |
451 | } |
452 | ||
453 | ||
454 | /* Search for a needed file in a path. */ | |
455 | ||
b34976b6 | 456 | static bfd_boolean |
e56f61be L |
457 | gld${EMULATION_NAME}_search_needed (const char *path, |
458 | struct dt_needed *n, int force) | |
04925e1e AM |
459 | { |
460 | const char *s; | |
e56f61be | 461 | const char *name = n->name; |
04925e1e | 462 | size_t len; |
e56f61be | 463 | struct dt_needed needed; |
04925e1e | 464 | |
cc5ce052 | 465 | if (name[0] == '/') |
e56f61be | 466 | return gld${EMULATION_NAME}_try_needed (n, force); |
cc5ce052 | 467 | |
04925e1e | 468 | if (path == NULL || *path == '\0') |
b34976b6 | 469 | return FALSE; |
e56f61be L |
470 | |
471 | needed.by = n->by; | |
472 | needed.name = n->name; | |
473 | ||
04925e1e AM |
474 | len = strlen (name); |
475 | while (1) | |
476 | { | |
477 | char *filename, *sset; | |
478 | ||
c76308d2 | 479 | s = strchr (path, config.rpath_separator); |
04925e1e AM |
480 | if (s == NULL) |
481 | s = path + strlen (path); | |
482 | ||
07f1e47a AM |
483 | #if HAVE_DOS_BASED_FILE_SYSTEM |
484 | /* Assume a match on the second char is part of drive specifier. */ | |
485 | else if (config.rpath_separator == ':' | |
486 | && s == path + 1 | |
487 | && ISALPHA (*path)) | |
488 | { | |
489 | s = strchr (s + 1, config.rpath_separator); | |
490 | if (s == NULL) | |
491 | s = path + strlen (path); | |
492 | } | |
493 | #endif | |
04925e1e AM |
494 | filename = (char *) xmalloc (s - path + len + 2); |
495 | if (s == path) | |
496 | sset = filename; | |
497 | else | |
498 | { | |
499 | memcpy (filename, path, s - path); | |
500 | filename[s - path] = '/'; | |
501 | sset = filename + (s - path) + 1; | |
502 | } | |
503 | strcpy (sset, name); | |
504 | ||
e56f61be L |
505 | needed.name = filename; |
506 | if (gld${EMULATION_NAME}_try_needed (&needed, force)) | |
b34976b6 | 507 | return TRUE; |
04925e1e AM |
508 | |
509 | free (filename); | |
510 | ||
511 | if (*s == '\0') | |
512 | break; | |
513 | path = s + 1; | |
514 | } | |
515 | ||
b34976b6 | 516 | return FALSE; |
04925e1e AM |
517 | } |
518 | ||
519 | EOF | |
9c8ebd6a | 520 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
92b93329 | 521 | fragment <<EOF |
9c8ebd6a | 522 | |
c76308d2 RS |
523 | /* Add the sysroot to every entry in a path separated by |
524 | config.rpath_separator. */ | |
9c8ebd6a DJ |
525 | |
526 | static char * | |
0c7a8e5a | 527 | gld${EMULATION_NAME}_add_sysroot (const char *path) |
9c8ebd6a DJ |
528 | { |
529 | int len, colons, i; | |
530 | char *ret, *p; | |
531 | ||
532 | len = strlen (path); | |
533 | colons = 0; | |
534 | i = 0; | |
535 | while (path[i]) | |
c76308d2 | 536 | if (path[i++] == config.rpath_separator) |
9c8ebd6a DJ |
537 | colons++; |
538 | ||
539 | if (path[i]) | |
540 | colons++; | |
541 | ||
42644a89 | 542 | len = len + (colons + 1) * strlen (ld_sysroot); |
9c8ebd6a DJ |
543 | ret = xmalloc (len + 1); |
544 | strcpy (ret, ld_sysroot); | |
545 | p = ret + strlen (ret); | |
546 | i = 0; | |
547 | while (path[i]) | |
c76308d2 | 548 | if (path[i] == config.rpath_separator) |
9c8ebd6a | 549 | { |
0c7a8e5a | 550 | *p++ = path[i++]; |
9c8ebd6a DJ |
551 | strcpy (p, ld_sysroot); |
552 | p = p + strlen (p); | |
9c8ebd6a DJ |
553 | } |
554 | else | |
555 | *p++ = path[i++]; | |
556 | ||
557 | *p = 0; | |
558 | return ret; | |
559 | } | |
04925e1e | 560 | |
3dc16cab DJ |
561 | EOF |
562 | case ${target} in | |
ebe1fac1 | 563 | *-*-freebsd* | *-*-dragonfly*) |
92b93329 | 564 | fragment <<EOF |
ebe1fac1 NC |
565 | /* Read the system search path the FreeBSD way rather than the Linux way. */ |
566 | #ifdef HAVE_ELF_HINTS_H | |
567 | #include <elf-hints.h> | |
568 | #else | |
569 | #include "elf-hints-local.h" | |
570 | #endif | |
571 | ||
572 | static bfd_boolean | |
d5c8b1f8 AM |
573 | gld${EMULATION_NAME}_check_ld_elf_hints (const struct bfd_link_needed_list *l, |
574 | int force) | |
ebe1fac1 NC |
575 | { |
576 | static bfd_boolean initialized; | |
577 | static char *ld_elf_hints; | |
578 | struct dt_needed needed; | |
579 | ||
580 | if (!initialized) | |
581 | { | |
582 | FILE *f; | |
583 | char *tmppath; | |
584 | ||
ff7a0acf | 585 | tmppath = concat (ld_sysroot, _PATH_ELF_HINTS, (const char *) NULL); |
ebe1fac1 NC |
586 | f = fopen (tmppath, FOPEN_RB); |
587 | free (tmppath); | |
588 | if (f != NULL) | |
589 | { | |
590 | struct elfhints_hdr hdr; | |
591 | ||
592 | if (fread (&hdr, 1, sizeof (hdr), f) == sizeof (hdr) | |
593 | && hdr.magic == ELFHINTS_MAGIC | |
594 | && hdr.version == 1) | |
595 | { | |
596 | if (fseek (f, hdr.strtab + hdr.dirlist, SEEK_SET) != -1) | |
597 | { | |
598 | char *b; | |
599 | ||
600 | b = xmalloc (hdr.dirlistlen + 1); | |
601 | if (fread (b, 1, hdr.dirlistlen + 1, f) == | |
602 | hdr.dirlistlen + 1) | |
603 | ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b); | |
e13629bc | 604 | |
ebe1fac1 NC |
605 | free (b); |
606 | } | |
607 | } | |
608 | fclose (f); | |
609 | } | |
610 | ||
611 | initialized = TRUE; | |
612 | } | |
613 | ||
614 | if (ld_elf_hints == NULL) | |
615 | return FALSE; | |
616 | ||
d5c8b1f8 AM |
617 | needed.by = l->by; |
618 | needed.name = l->name; | |
619 | return gld${EMULATION_NAME}_search_needed (ld_elf_hints, &needed, force); | |
ebe1fac1 NC |
620 | } |
621 | EOF | |
622 | # FreeBSD | |
623 | ;; | |
624 | ||
a5244b7e | 625 | *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*) |
92b93329 | 626 | fragment <<EOF |
04925e1e AM |
627 | /* For a native linker, check the file /etc/ld.so.conf for directories |
628 | in which we may find shared libraries. /etc/ld.so.conf is really | |
482e8b32 | 629 | only meaningful on Linux. */ |
04925e1e | 630 | |
d3989512 | 631 | struct gld${EMULATION_NAME}_ld_so_conf |
04925e1e | 632 | { |
d3989512 JJ |
633 | char *path; |
634 | size_t len, alloc; | |
635 | }; | |
04925e1e | 636 | |
dfcffada | 637 | static bfd_boolean |
d3989512 JJ |
638 | gld${EMULATION_NAME}_parse_ld_so_conf |
639 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename); | |
640 | ||
641 | static void | |
642 | gld${EMULATION_NAME}_parse_ld_so_conf_include | |
643 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename, | |
644 | const char *pattern) | |
645 | { | |
646 | char *newp = NULL; | |
0b48acfe | 647 | #ifdef HAVE_GLOB |
d3989512 | 648 | glob_t gl; |
0b48acfe | 649 | #endif |
d3989512 JJ |
650 | |
651 | if (pattern[0] != '/') | |
04925e1e | 652 | { |
d3989512 JJ |
653 | char *p = strrchr (filename, '/'); |
654 | size_t patlen = strlen (pattern) + 1; | |
04925e1e | 655 | |
d3989512 JJ |
656 | newp = xmalloc (p - filename + 1 + patlen); |
657 | memcpy (newp, filename, p - filename + 1); | |
658 | memcpy (newp + (p - filename + 1), pattern, patlen); | |
659 | pattern = newp; | |
660 | } | |
04925e1e | 661 | |
0b48acfe | 662 | #ifdef HAVE_GLOB |
d3989512 JJ |
663 | if (glob (pattern, 0, NULL, &gl) == 0) |
664 | { | |
665 | size_t i; | |
666 | ||
667 | for (i = 0; i < gl.gl_pathc; ++i) | |
668 | gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]); | |
669 | globfree (&gl); | |
670 | } | |
0b48acfe MM |
671 | #else |
672 | /* If we do not have glob, treat the pattern as a literal filename. */ | |
673 | gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern); | |
674 | #endif | |
d3989512 JJ |
675 | |
676 | if (newp) | |
677 | free (newp); | |
678 | } | |
679 | ||
dfcffada | 680 | static bfd_boolean |
d3989512 JJ |
681 | gld${EMULATION_NAME}_parse_ld_so_conf |
682 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename) | |
683 | { | |
684 | FILE *f = fopen (filename, FOPEN_RT); | |
563f4125 JJ |
685 | char *line; |
686 | size_t linelen; | |
d3989512 JJ |
687 | |
688 | if (f == NULL) | |
dfcffada | 689 | return FALSE; |
d3989512 | 690 | |
563f4125 JJ |
691 | linelen = 256; |
692 | line = xmalloc (linelen); | |
693 | do | |
d3989512 | 694 | { |
563f4125 JJ |
695 | char *p = line, *q; |
696 | ||
697 | /* Normally this would use getline(3), but we need to be portable. */ | |
698 | while ((q = fgets (p, linelen - (p - line), f)) != NULL | |
699 | && strlen (q) == linelen - (p - line) - 1 | |
700 | && line[linelen - 2] != '\n') | |
701 | { | |
702 | line = xrealloc (line, 2 * linelen); | |
703 | p = line + linelen - 1; | |
704 | linelen += linelen; | |
705 | } | |
706 | ||
707 | if (q == NULL && p == line) | |
708 | break; | |
d3989512 JJ |
709 | |
710 | p = strchr (line, '\n'); | |
711 | if (p) | |
712 | *p = '\0'; | |
713 | ||
714 | /* Because the file format does not know any form of quoting we | |
715 | can search forward for the next '#' character and if found | |
716 | make it terminating the line. */ | |
717 | p = strchr (line, '#'); | |
718 | if (p) | |
719 | *p = '\0'; | |
720 | ||
721 | /* Remove leading whitespace. NUL is no whitespace character. */ | |
722 | p = line; | |
723 | while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v') | |
724 | ++p; | |
725 | ||
726 | /* If the line is blank it is ignored. */ | |
727 | if (p[0] == '\0') | |
728 | continue; | |
04925e1e | 729 | |
0112cd26 | 730 | if (CONST_STRNEQ (p, "include") && (p[7] == ' ' || p[7] == '\t')) |
d3989512 JJ |
731 | { |
732 | char *dir, c; | |
733 | p += 8; | |
734 | do | |
04925e1e | 735 | { |
d3989512 JJ |
736 | while (*p == ' ' || *p == '\t') |
737 | ++p; | |
04925e1e | 738 | |
d3989512 JJ |
739 | if (*p == '\0') |
740 | break; | |
252b5132 | 741 | |
d3989512 JJ |
742 | dir = p; |
743 | ||
744 | while (*p != ' ' && *p != '\t' && *p) | |
745 | ++p; | |
746 | ||
747 | c = *p; | |
748 | *p++ = '\0'; | |
749 | if (dir[0] != '\0') | |
750 | gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename, | |
751 | dir); | |
752 | } | |
753 | while (c != '\0'); | |
754 | } | |
755 | else | |
756 | { | |
757 | char *dir = p; | |
758 | while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f' | |
759 | && *p != '\r' && *p != '\v') | |
760 | ++p; | |
761 | ||
762 | while (p != dir && p[-1] == '/') | |
763 | --p; | |
764 | if (info->path == NULL) | |
765 | { | |
766 | info->alloc = p - dir + 1 + 256; | |
767 | info->path = xmalloc (info->alloc); | |
768 | info->len = 0; | |
769 | } | |
04925e1e AM |
770 | else |
771 | { | |
d3989512 JJ |
772 | if (info->len + 1 + (p - dir) >= info->alloc) |
773 | { | |
774 | info->alloc += p - dir + 256; | |
775 | info->path = xrealloc (info->path, info->alloc); | |
776 | } | |
c76308d2 | 777 | info->path[info->len++] = config.rpath_separator; |
04925e1e | 778 | } |
d3989512 JJ |
779 | memcpy (info->path + info->len, dir, p - dir); |
780 | info->len += p - dir; | |
781 | info->path[info->len] = '\0'; | |
782 | } | |
783 | } | |
563f4125 | 784 | while (! feof (f)); |
d3989512 JJ |
785 | free (line); |
786 | fclose (f); | |
dfcffada | 787 | return TRUE; |
d3989512 | 788 | } |
252b5132 | 789 | |
d3989512 | 790 | static bfd_boolean |
d5c8b1f8 AM |
791 | gld${EMULATION_NAME}_check_ld_so_conf (const struct bfd_link_needed_list *l, |
792 | int force) | |
d3989512 JJ |
793 | { |
794 | static bfd_boolean initialized; | |
795 | static char *ld_so_conf; | |
796 | struct dt_needed needed; | |
252b5132 | 797 | |
d3989512 JJ |
798 | if (! initialized) |
799 | { | |
800 | char *tmppath; | |
801 | struct gld${EMULATION_NAME}_ld_so_conf info; | |
9c8ebd6a | 802 | |
d3989512 JJ |
803 | info.path = NULL; |
804 | info.len = info.alloc = 0; | |
ff7a0acf AM |
805 | tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf", |
806 | (const char *) NULL); | |
dfcffada AM |
807 | if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath)) |
808 | { | |
809 | free (tmppath); | |
ff7a0acf AM |
810 | tmppath = concat (ld_sysroot, "/etc/ld.so.conf", |
811 | (const char *) NULL); | |
dfcffada AM |
812 | gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath); |
813 | } | |
d3989512 | 814 | free (tmppath); |
dfcffada | 815 | |
d3989512 JJ |
816 | if (info.path) |
817 | { | |
818 | char *d = gld${EMULATION_NAME}_add_sysroot (info.path); | |
819 | free (info.path); | |
820 | ld_so_conf = d; | |
04925e1e | 821 | } |
b34976b6 | 822 | initialized = TRUE; |
04925e1e | 823 | } |
49e56c49 | 824 | |
04925e1e | 825 | if (ld_so_conf == NULL) |
b34976b6 | 826 | return FALSE; |
252b5132 | 827 | |
e56f61be | 828 | |
d5c8b1f8 AM |
829 | needed.by = l->by; |
830 | needed.name = l->name; | |
e56f61be | 831 | return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force); |
252b5132 RH |
832 | } |
833 | ||
04925e1e | 834 | EOF |
9c8ebd6a DJ |
835 | # Linux |
836 | ;; | |
04925e1e AM |
837 | esac |
838 | fi | |
92b93329 | 839 | fragment <<EOF |
04925e1e | 840 | |
252b5132 RH |
841 | /* See if an input file matches a DT_NEEDED entry by name. */ |
842 | ||
843 | static void | |
0c7a8e5a | 844 | gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s) |
252b5132 | 845 | { |
e13629bc AM |
846 | const char *soname; |
847 | ||
848 | /* Stop looking if we've found a loaded lib. */ | |
849 | if (global_found != NULL | |
850 | && (bfd_elf_get_dyn_lib_class (global_found->the_bfd) | |
851 | & DYN_AS_NEEDED) == 0) | |
252b5132 RH |
852 | return; |
853 | ||
e13629bc AM |
854 | if (s->filename == NULL || s->the_bfd == NULL) |
855 | return; | |
856 | ||
857 | /* Don't look for a second non-loaded as-needed lib. */ | |
858 | if (global_found != NULL | |
859 | && (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0) | |
7cedef86 AM |
860 | return; |
861 | ||
42627821 | 862 | if (filename_cmp (s->filename, global_needed->name) == 0) |
252b5132 | 863 | { |
e13629bc AM |
864 | global_found = s; |
865 | return; | |
866 | } | |
577a0623 | 867 | |
66be1055 | 868 | if (s->flags.search_dirs) |
e13629bc AM |
869 | { |
870 | const char *f = strrchr (s->filename, '/'); | |
871 | if (f != NULL | |
42627821 | 872 | && filename_cmp (f + 1, global_needed->name) == 0) |
577a0623 | 873 | { |
e13629bc | 874 | global_found = s; |
577a0623 AM |
875 | return; |
876 | } | |
252b5132 RH |
877 | } |
878 | ||
e13629bc AM |
879 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
880 | if (soname != NULL | |
42627821 | 881 | && filename_cmp (soname, global_needed->name) == 0) |
252b5132 | 882 | { |
e13629bc AM |
883 | global_found = s; |
884 | return; | |
252b5132 | 885 | } |
252b5132 RH |
886 | } |
887 | ||
41392f03 AM |
888 | EOF |
889 | ||
890 | if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then | |
92b93329 | 891 | fragment <<EOF |
04925e1e | 892 | |
24382dca | 893 | static bfd_size_type |
677e5a92 | 894 | id_note_section_size (bfd *abfd ATTRIBUTE_UNUSED) |
24382dca | 895 | { |
30e8ee25 | 896 | const char *style = emit_note_gnu_build_id; |
24382dca RM |
897 | bfd_size_type size; |
898 | ||
24382dca RM |
899 | size = offsetof (Elf_External_Note, name[sizeof "GNU"]); |
900 | size = (size + 3) & -(bfd_size_type) 4; | |
901 | ||
902 | if (!strcmp (style, "md5") || !strcmp (style, "uuid")) | |
903 | size += 128 / 8; | |
904 | else if (!strcmp (style, "sha1")) | |
905 | size += 160 / 8; | |
906 | else if (!strncmp (style, "0x", 2)) | |
907 | { | |
908 | /* ID is in string form (hex). Convert to bits. */ | |
909 | const char *id = style + 2; | |
910 | do | |
911 | { | |
912 | if (ISXDIGIT (id[0]) && ISXDIGIT (id[1])) | |
913 | { | |
914 | ++size; | |
915 | id += 2; | |
916 | } | |
917 | else if (*id == '-' || *id == ':') | |
918 | ++id; | |
919 | else | |
920 | { | |
921 | size = 0; | |
922 | break; | |
923 | } | |
924 | } while (*id != '\0'); | |
925 | } | |
926 | else | |
927 | size = 0; | |
928 | ||
929 | return size; | |
930 | } | |
931 | ||
932 | static unsigned char | |
933 | read_hex (const char xdigit) | |
934 | { | |
935 | if (ISDIGIT (xdigit)) | |
936 | return xdigit - '0'; | |
937 | if (ISUPPER (xdigit)) | |
938 | return xdigit - 'A' + 0xa; | |
939 | if (ISLOWER (xdigit)) | |
940 | return xdigit - 'a' + 0xa; | |
941 | abort (); | |
942 | return 0; | |
943 | } | |
944 | ||
24382dca | 945 | static bfd_boolean |
30e8ee25 | 946 | write_build_id (bfd *abfd) |
24382dca RM |
947 | { |
948 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
30e8ee25 AM |
949 | struct elf_obj_tdata *t = elf_tdata (abfd); |
950 | const char *style; | |
24382dca RM |
951 | asection *asec; |
952 | Elf_Internal_Shdr *i_shdr; | |
953 | unsigned char *contents, *id_bits; | |
954 | bfd_size_type size; | |
30e8ee25 | 955 | file_ptr position; |
24382dca | 956 | Elf_External_Note *e_note; |
30e8ee25 | 957 | typedef void (*sum_fn) (const void *, size_t, void *); |
24382dca | 958 | |
c0355132 AM |
959 | style = t->o->build_id.style; |
960 | asec = t->o->build_id.sec; | |
83e4970b | 961 | if (bfd_is_abs_section (asec->output_section)) |
24382dca | 962 | { |
83e4970b AM |
963 | einfo (_("%P: warning: .note.gnu.build-id section discarded," |
964 | " --build-id ignored.\n")); | |
965 | return TRUE; | |
24382dca RM |
966 | } |
967 | i_shdr = &elf_section_data (asec->output_section)->this_hdr; | |
968 | ||
969 | if (i_shdr->contents == NULL) | |
970 | { | |
b2ff8454 | 971 | if (asec->contents == NULL) |
1e9cc1c2 | 972 | asec->contents = (unsigned char *) xmalloc (asec->size); |
b2ff8454 | 973 | contents = asec->contents; |
24382dca | 974 | } |
b2ff8454 RM |
975 | else |
976 | contents = i_shdr->contents + asec->output_offset; | |
24382dca | 977 | |
1e9cc1c2 | 978 | e_note = (Elf_External_Note *) contents; |
24382dca RM |
979 | size = offsetof (Elf_External_Note, name[sizeof "GNU"]); |
980 | size = (size + 3) & -(bfd_size_type) 4; | |
981 | id_bits = contents + size; | |
982 | size = asec->size - size; | |
983 | ||
984 | bfd_h_put_32 (abfd, sizeof "GNU", &e_note->namesz); | |
985 | bfd_h_put_32 (abfd, size, &e_note->descsz); | |
986 | bfd_h_put_32 (abfd, NT_GNU_BUILD_ID, &e_note->type); | |
987 | memcpy (e_note->name, "GNU", sizeof "GNU"); | |
988 | ||
30e8ee25 | 989 | if (strcmp (style, "md5") == 0) |
24382dca RM |
990 | { |
991 | struct md5_ctx ctx; | |
30e8ee25 | 992 | |
24382dca | 993 | md5_init_ctx (&ctx); |
30e8ee25 | 994 | if (!bed->s->checksum_contents (abfd, (sum_fn) &md5_process_bytes, &ctx)) |
24382dca | 995 | return FALSE; |
30e8ee25 | 996 | md5_finish_ctx (&ctx, id_bits); |
24382dca | 997 | } |
30e8ee25 | 998 | else if (strcmp (style, "sha1") == 0) |
24382dca RM |
999 | { |
1000 | struct sha1_ctx ctx; | |
30e8ee25 | 1001 | |
24382dca | 1002 | sha1_init_ctx (&ctx); |
30e8ee25 | 1003 | if (!bed->s->checksum_contents (abfd, (sum_fn) &sha1_process_bytes, &ctx)) |
24382dca | 1004 | return FALSE; |
30e8ee25 | 1005 | sha1_finish_ctx (&ctx, id_bits); |
24382dca | 1006 | } |
30e8ee25 | 1007 | else if (strcmp (style, "uuid") == 0) |
24382dca RM |
1008 | { |
1009 | int n; | |
1010 | int fd = open ("/dev/urandom", O_RDONLY); | |
1011 | if (fd < 0) | |
1012 | return FALSE; | |
1013 | n = read (fd, id_bits, size); | |
1014 | close (fd); | |
1015 | if (n < (int) size) | |
1016 | return FALSE; | |
1017 | } | |
30e8ee25 | 1018 | else if (strncmp (style, "0x", 2) == 0) |
24382dca RM |
1019 | { |
1020 | /* ID is in string form (hex). Convert to bits. */ | |
30e8ee25 | 1021 | const char *id = style + 2; |
24382dca RM |
1022 | size_t n = 0; |
1023 | do | |
1024 | { | |
1025 | if (ISXDIGIT (id[0]) && ISXDIGIT (id[1])) | |
1026 | { | |
1027 | id_bits[n] = read_hex (*id++) << 4; | |
1028 | id_bits[n++] |= read_hex (*id++); | |
1029 | } | |
1030 | else if (*id == '-' || *id == ':') | |
1031 | ++id; | |
1032 | else | |
1033 | abort (); /* Should have been validated earlier. */ | |
1034 | } while (*id != '\0'); | |
1035 | } | |
1036 | else | |
1037 | abort (); /* Should have been validated earlier. */ | |
1038 | ||
30e8ee25 | 1039 | position = i_shdr->sh_offset + asec->output_offset; |
b2ff8454 | 1040 | size = asec->size; |
30e8ee25 | 1041 | return (bfd_seek (abfd, position, SEEK_SET) == 0 |
b2ff8454 | 1042 | && bfd_bwrite (contents, size, abfd) == size); |
24382dca RM |
1043 | } |
1044 | ||
30e8ee25 AM |
1045 | /* Make .note.gnu.build-id section, and set up elf_tdata->build_id. */ |
1046 | ||
1047 | static bfd_boolean | |
1048 | setup_build_id (bfd *ibfd) | |
1049 | { | |
1050 | asection *s; | |
1051 | bfd_size_type size; | |
1052 | flagword flags; | |
1053 | ||
1054 | size = id_note_section_size (ibfd); | |
1055 | if (size == 0) | |
1056 | { | |
1057 | einfo ("%P: warning: unrecognized --build-id style ignored.\n"); | |
1058 | return FALSE; | |
1059 | } | |
1060 | ||
1061 | flags = (SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY | |
1062 | | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA); | |
1063 | s = bfd_make_section_with_flags (ibfd, ".note.gnu.build-id", flags); | |
1064 | if (s != NULL && bfd_set_section_alignment (ibfd, s, 2)) | |
1065 | { | |
1066 | struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd); | |
c0355132 AM |
1067 | t->o->build_id.after_write_object_contents = &write_build_id; |
1068 | t->o->build_id.style = emit_note_gnu_build_id; | |
1069 | t->o->build_id.sec = s; | |
1070 | elf_section_type (s) = SHT_NOTE; | |
1071 | s->size = size; | |
1072 | return TRUE; | |
30e8ee25 AM |
1073 | } |
1074 | ||
1075 | einfo ("%P: warning: Cannot create .note.gnu.build-id section," | |
1076 | " --build-id ignored.\n"); | |
1077 | return FALSE; | |
1078 | } | |
24382dca | 1079 | |
04925e1e | 1080 | /* This is called after all the input files have been opened. */ |
252b5132 RH |
1081 | |
1082 | static void | |
0c7a8e5a | 1083 | gld${EMULATION_NAME}_after_open (void) |
252b5132 | 1084 | { |
04925e1e | 1085 | struct bfd_link_needed_list *needed, *l; |
d10e7fcc AM |
1086 | struct elf_link_hash_table *htab; |
1087 | ||
5c3049d2 AM |
1088 | after_open_default (); |
1089 | ||
d10e7fcc AM |
1090 | htab = elf_hash_table (&link_info); |
1091 | if (!is_elf_hash_table (htab)) | |
1092 | return; | |
252b5132 | 1093 | |
30e8ee25 | 1094 | if (emit_note_gnu_build_id != NULL) |
c0065db7 RM |
1095 | { |
1096 | bfd *abfd; | |
c0065db7 | 1097 | |
a654efd6 L |
1098 | /* Find an ELF input. */ |
1099 | for (abfd = link_info.input_bfds; | |
1100 | abfd != (bfd *) NULL; abfd = abfd->link_next) | |
1101 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
1102 | break; | |
c0065db7 | 1103 | |
30e8ee25 AM |
1104 | /* PR 10555: If there are no ELF input files do not try to |
1105 | create a .note.gnu-build-id section. */ | |
1106 | if (abfd == NULL | |
1107 | || !setup_build_id (abfd)) | |
c0065db7 | 1108 | { |
30e8ee25 AM |
1109 | free ((char *) emit_note_gnu_build_id); |
1110 | emit_note_gnu_build_id = NULL; | |
c0065db7 RM |
1111 | } |
1112 | } | |
1113 | ||
d10e7fcc | 1114 | if (link_info.relocatable) |
76f0cad6 NC |
1115 | { |
1116 | if (link_info.execstack == ! link_info.noexecstack) | |
1117 | /* PR ld/16744: If "-z [no]execstack" has been specified on the | |
1118 | command line and we are perfoming a relocatable link then no | |
1119 | PT_GNU_STACK segment will be created and so the | |
1120 | linkinfo.[no]execstack values set in _handle_option() will have no | |
1121 | effect. Instead we create a .note.GNU-stack section in much the | |
1122 | same way as the assembler does with its --[no]execstack option. */ | |
1123 | (void) bfd_make_section_with_flags (link_info.input_bfds, | |
1124 | ".note.GNU-stack", | |
1125 | SEC_READONLY | (link_info.execstack ? SEC_CODE : 0)); | |
1126 | ||
1127 | return; | |
1128 | } | |
d10e7fcc | 1129 | |
eb3d5f3b | 1130 | if (link_info.eh_frame_hdr |
d10e7fcc | 1131 | && !link_info.traditional_format) |
eb3d5f3b | 1132 | { |
a654efd6 L |
1133 | bfd *abfd, *elfbfd = NULL; |
1134 | bfd_boolean warn_eh_frame = FALSE; | |
d10e7fcc | 1135 | asection *s; |
eb3d5f3b | 1136 | |
d10e7fcc | 1137 | for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next) |
eb3d5f3b | 1138 | { |
a654efd6 L |
1139 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
1140 | elfbfd = abfd; | |
4440bb77 L |
1141 | if (!warn_eh_frame) |
1142 | { | |
1143 | s = bfd_get_section_by_name (abfd, ".eh_frame"); | |
9cf8b46e AM |
1144 | while (s != NULL |
1145 | && (s->size <= 8 | |
1146 | || bfd_is_abs_section (s->output_section))) | |
1147 | s = bfd_get_next_section_by_name (s); | |
1148 | warn_eh_frame = s != NULL; | |
4440bb77 L |
1149 | } |
1150 | if (elfbfd && warn_eh_frame) | |
1151 | break; | |
d10e7fcc | 1152 | } |
a654efd6 | 1153 | if (elfbfd) |
d10e7fcc AM |
1154 | { |
1155 | const struct elf_backend_data *bed; | |
1156 | ||
a654efd6 L |
1157 | bed = get_elf_backend_data (elfbfd); |
1158 | s = bfd_make_section_with_flags (elfbfd, ".eh_frame_hdr", | |
1159 | bed->dynamic_sec_flags | |
1160 | | SEC_READONLY); | |
d10e7fcc | 1161 | if (s != NULL |
a654efd6 L |
1162 | && bfd_set_section_alignment (elfbfd, s, 2)) |
1163 | { | |
1164 | htab->eh_info.hdr_sec = s; | |
1165 | warn_eh_frame = FALSE; | |
1166 | } | |
eb3d5f3b | 1167 | } |
a654efd6 L |
1168 | if (warn_eh_frame) |
1169 | einfo ("%P: warning: Cannot create .eh_frame_hdr section," | |
1170 | " --eh-frame-hdr ignored.\n"); | |
eb3d5f3b JB |
1171 | } |
1172 | ||
04925e1e AM |
1173 | /* Get the list of files which appear in DT_NEEDED entries in |
1174 | dynamic objects included in the link (often there will be none). | |
1175 | For each such file, we want to track down the corresponding | |
1176 | library, and include the symbol table in the link. This is what | |
1177 | the runtime dynamic linker will do. Tracking the files down here | |
1178 | permits one dynamic object to include another without requiring | |
1179 | special action by the person doing the link. Note that the | |
1180 | needed list can actually grow while we are stepping through this | |
1181 | loop. */ | |
f13a99db | 1182 | needed = bfd_elf_get_needed_list (link_info.output_bfd, &link_info); |
04925e1e | 1183 | for (l = needed; l != NULL; l = l->next) |
252b5132 | 1184 | { |
04925e1e | 1185 | struct bfd_link_needed_list *ll; |
e56f61be | 1186 | struct dt_needed n, nn; |
04925e1e | 1187 | int force; |
252b5132 | 1188 | |
7e9f0867 | 1189 | /* If the lib that needs this one was --as-needed and wasn't |
4706eab9 | 1190 | found to be needed, then this lib isn't needed either. */ |
7e9f0867 | 1191 | if (l->by != NULL |
4706eab9 AM |
1192 | && (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0) |
1193 | continue; | |
1194 | ||
1195 | /* Skip the lib if --no-copy-dt-needed-entries and | |
1196 | --allow-shlib-undefined is in effect. */ | |
1197 | if (l->by != NULL | |
1198 | && link_info.unresolved_syms_in_shared_libs == RM_IGNORE | |
1199 | && (bfd_elf_get_dyn_lib_class (l->by) & DYN_NO_ADD_NEEDED) != 0) | |
7e9f0867 AM |
1200 | continue; |
1201 | ||
04925e1e AM |
1202 | /* If we've already seen this file, skip it. */ |
1203 | for (ll = needed; ll != l; ll = ll->next) | |
7e9f0867 AM |
1204 | if ((ll->by == NULL |
1205 | || (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0) | |
1206 | && strcmp (ll->name, l->name) == 0) | |
04925e1e AM |
1207 | break; |
1208 | if (ll != l) | |
1209 | continue; | |
252b5132 | 1210 | |
04925e1e AM |
1211 | /* See if this file was included in the link explicitly. */ |
1212 | global_needed = l; | |
e13629bc | 1213 | global_found = NULL; |
04925e1e | 1214 | lang_for_each_input_file (gld${EMULATION_NAME}_check_needed); |
e13629bc AM |
1215 | if (global_found != NULL |
1216 | && (bfd_elf_get_dyn_lib_class (global_found->the_bfd) | |
1217 | & DYN_AS_NEEDED) == 0) | |
04925e1e | 1218 | continue; |
252b5132 | 1219 | |
e56f61be L |
1220 | n.by = l->by; |
1221 | n.name = l->name; | |
1222 | nn.by = l->by; | |
cd6f1cf3 | 1223 | if (verbose) |
ec4eb78a L |
1224 | info_msg (_("%s needed by %B\n"), l->name, l->by); |
1225 | ||
e13629bc AM |
1226 | /* As-needed libs specified on the command line (or linker script) |
1227 | take priority over libs found in search dirs. */ | |
1228 | if (global_found != NULL) | |
1229 | { | |
1230 | nn.name = global_found->filename; | |
1231 | if (gld${EMULATION_NAME}_try_needed (&nn, TRUE)) | |
1232 | continue; | |
1233 | } | |
1234 | ||
04925e1e AM |
1235 | /* We need to find this file and include the symbol table. We |
1236 | want to search for the file in the same way that the dynamic | |
1237 | linker will search. That means that we want to use | |
1238 | rpath_link, rpath, then the environment variable | |
ec4eb78a L |
1239 | LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH |
1240 | entries (native only), then the linker script LIB_SEARCH_DIRS. | |
1241 | We do not search using the -L arguments. | |
252b5132 | 1242 | |
04925e1e AM |
1243 | We search twice. The first time, we skip objects which may |
1244 | introduce version mismatches. The second time, we force | |
1245 | their use. See gld${EMULATION_NAME}_vercheck comment. */ | |
1246 | for (force = 0; force < 2; force++) | |
1247 | { | |
04925e1e AM |
1248 | size_t len; |
1249 | search_dirs_type *search; | |
6dd8c765 | 1250 | EOF |
ff925e69 | 1251 | if [ "x${NATIVE}" = xyes ] ; then |
92b93329 | 1252 | fragment <<EOF |
dcb0bd0e | 1253 | const char *lib_path; |
ff925e69 KK |
1254 | EOF |
1255 | fi | |
1256 | if [ "x${USE_LIBPATH}" = xyes ] ; then | |
92b93329 | 1257 | fragment <<EOF |
6dd8c765 L |
1258 | struct bfd_link_needed_list *rp; |
1259 | int found; | |
1260 | EOF | |
6dd8c765 | 1261 | fi |
92b93329 | 1262 | fragment <<EOF |
252b5132 | 1263 | |
04925e1e | 1264 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link, |
e56f61be | 1265 | &n, force)) |
04925e1e | 1266 | break; |
dcb0bd0e | 1267 | EOF |
9c8ebd6a | 1268 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
92b93329 | 1269 | fragment <<EOF |
04925e1e | 1270 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath, |
e56f61be | 1271 | &n, force)) |
04925e1e | 1272 | break; |
9c8ebd6a DJ |
1273 | EOF |
1274 | fi | |
1275 | if [ "x${NATIVE}" = xyes ] ; then | |
92b93329 | 1276 | fragment <<EOF |
04925e1e AM |
1277 | if (command_line.rpath_link == NULL |
1278 | && command_line.rpath == NULL) | |
1279 | { | |
1280 | lib_path = (const char *) getenv ("LD_RUN_PATH"); | |
e56f61be | 1281 | if (gld${EMULATION_NAME}_search_needed (lib_path, &n, |
04925e1e AM |
1282 | force)) |
1283 | break; | |
1284 | } | |
04925e1e | 1285 | lib_path = (const char *) getenv ("LD_LIBRARY_PATH"); |
e56f61be | 1286 | if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force)) |
04925e1e | 1287 | break; |
9c8ebd6a DJ |
1288 | EOF |
1289 | fi | |
1290 | if [ "x${USE_LIBPATH}" = xyes ] ; then | |
92b93329 | 1291 | fragment <<EOF |
ec4eb78a | 1292 | found = 0; |
f13a99db | 1293 | rp = bfd_elf_get_runpath_list (link_info.output_bfd, &link_info); |
6dd8c765 | 1294 | for (; !found && rp != NULL; rp = rp->next) |
ec4eb78a | 1295 | { |
9c8ebd6a | 1296 | char *tmpname = gld${EMULATION_NAME}_add_sysroot (rp->name); |
ec4eb78a | 1297 | found = (rp->by == l->by |
9c8ebd6a | 1298 | && gld${EMULATION_NAME}_search_needed (tmpname, |
e56f61be | 1299 | &n, |
ec4eb78a | 1300 | force)); |
9c8ebd6a | 1301 | free (tmpname); |
ec4eb78a L |
1302 | } |
1303 | if (found) | |
1304 | break; | |
1305 | ||
04925e1e | 1306 | EOF |
04925e1e | 1307 | fi |
c1446dba L |
1308 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
1309 | case ${target} in | |
ebe1fac1 | 1310 | *-*-freebsd* | *-*-dragonfly*) |
92b93329 | 1311 | fragment <<EOF |
d5c8b1f8 | 1312 | if (gld${EMULATION_NAME}_check_ld_elf_hints (l, force)) |
ebe1fac1 NC |
1313 | break; |
1314 | EOF | |
1315 | # FreeBSD | |
1316 | ;; | |
1317 | ||
a5244b7e | 1318 | *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*) |
92b93329 | 1319 | fragment <<EOF |
d5c8b1f8 | 1320 | if (gld${EMULATION_NAME}_check_ld_so_conf (l, force)) |
c1446dba L |
1321 | break; |
1322 | ||
1323 | EOF | |
eeaa4577 | 1324 | # Linux |
c1446dba L |
1325 | ;; |
1326 | esac | |
1327 | fi | |
92b93329 | 1328 | fragment <<EOF |
04925e1e AM |
1329 | len = strlen (l->name); |
1330 | for (search = search_head; search != NULL; search = search->next) | |
1331 | { | |
1332 | char *filename; | |
252b5132 | 1333 | |
04925e1e AM |
1334 | if (search->cmdline) |
1335 | continue; | |
1336 | filename = (char *) xmalloc (strlen (search->name) + len + 2); | |
1337 | sprintf (filename, "%s/%s", search->name, l->name); | |
e56f61be L |
1338 | nn.name = filename; |
1339 | if (gld${EMULATION_NAME}_try_needed (&nn, force)) | |
04925e1e AM |
1340 | break; |
1341 | free (filename); | |
1342 | } | |
1343 | if (search != NULL) | |
1344 | break; | |
1345 | EOF | |
92b93329 | 1346 | fragment <<EOF |
04925e1e | 1347 | } |
252b5132 | 1348 | |
04925e1e AM |
1349 | if (force < 2) |
1350 | continue; | |
252b5132 | 1351 | |
e374f1d9 | 1352 | einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n", |
04925e1e AM |
1353 | l->name, l->by); |
1354 | } | |
1355 | } | |
252b5132 | 1356 | |
41392f03 AM |
1357 | EOF |
1358 | fi | |
1359 | ||
92b93329 | 1360 | fragment <<EOF |
252b5132 | 1361 | |
04925e1e | 1362 | /* Look through an expression for an assignment statement. */ |
252b5132 | 1363 | |
04925e1e | 1364 | static void |
0c7a8e5a | 1365 | gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp) |
04925e1e | 1366 | { |
4ea42fb7 | 1367 | bfd_boolean provide = FALSE; |
04925e1e AM |
1368 | |
1369 | switch (exp->type.node_class) | |
252b5132 | 1370 | { |
04925e1e | 1371 | case etree_provide: |
bded3693 | 1372 | case etree_provided: |
4ea42fb7 AM |
1373 | provide = TRUE; |
1374 | /* Fall thru */ | |
1375 | case etree_assign: | |
04925e1e AM |
1376 | /* We call record_link_assignment even if the symbol is defined. |
1377 | This is because if it is defined by a dynamic object, we | |
1378 | actually want to use the value defined by the linker script, | |
1379 | not the value from the dynamic object (because we are setting | |
1380 | symbols like etext). If the symbol is defined by a regular | |
1381 | object, then, as it happens, calling record_link_assignment | |
1382 | will do no harm. */ | |
04925e1e | 1383 | if (strcmp (exp->assign.dst, ".") != 0) |
252b5132 | 1384 | { |
f13a99db AM |
1385 | if (!bfd_elf_record_link_assignment (link_info.output_bfd, |
1386 | &link_info, | |
fe21a8fc L |
1387 | exp->assign.dst, provide, |
1388 | exp->assign.hidden)) | |
04925e1e AM |
1389 | einfo ("%P%F: failed to record assignment to %s: %E\n", |
1390 | exp->assign.dst); | |
252b5132 | 1391 | } |
04925e1e AM |
1392 | gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); |
1393 | break; | |
252b5132 | 1394 | |
04925e1e AM |
1395 | case etree_binary: |
1396 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); | |
1397 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); | |
1398 | break; | |
252b5132 | 1399 | |
04925e1e AM |
1400 | case etree_trinary: |
1401 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond); | |
1402 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); | |
1403 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); | |
1404 | break; | |
252b5132 | 1405 | |
04925e1e AM |
1406 | case etree_unary: |
1407 | gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); | |
1408 | break; | |
252b5132 | 1409 | |
04925e1e AM |
1410 | default: |
1411 | break; | |
252b5132 RH |
1412 | } |
1413 | } | |
1414 | ||
04925e1e AM |
1415 | |
1416 | /* This is called by the before_allocation routine via | |
1417 | lang_for_each_statement. It locates any assignment statements, and | |
1418 | tells the ELF backend about them, in case they are assignments to | |
1419 | symbols which are referred to by dynamic objects. */ | |
1420 | ||
1421 | static void | |
0c7a8e5a | 1422 | gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s) |
04925e1e AM |
1423 | { |
1424 | if (s->header.type == lang_assignment_statement_enum) | |
1425 | gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); | |
1426 | } | |
1427 | ||
41392f03 AM |
1428 | EOF |
1429 | ||
1430 | if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then | |
57e6abd2 AO |
1431 | if test x"${ELF_INTERPRETER_NAME+set}" = xset; then |
1432 | ELF_INTERPRETER_SET_DEFAULT=" | |
1433 | if (sinterp != NULL) | |
1434 | { | |
5718918d AM |
1435 | sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME}; |
1436 | sinterp->size = strlen ((char *) sinterp->contents) + 1; | |
57e6abd2 AO |
1437 | } |
1438 | ||
1439 | " | |
1440 | else | |
1441 | ELF_INTERPRETER_SET_DEFAULT= | |
1442 | fi | |
92b93329 | 1443 | fragment <<EOF |
04925e1e | 1444 | |
7ee314fa | 1445 | /* used by before_allocation and handle_option. */ |
4724d37e | 1446 | static void |
91d6fa6a | 1447 | gld${EMULATION_NAME}_append_to_separated_string (char **to, char *op_arg) |
7ee314fa AM |
1448 | { |
1449 | if (*to == NULL) | |
91d6fa6a | 1450 | *to = xstrdup (op_arg); |
7ee314fa AM |
1451 | else |
1452 | { | |
1453 | size_t to_len = strlen (*to); | |
91d6fa6a | 1454 | size_t op_arg_len = strlen (op_arg); |
7ee314fa AM |
1455 | char *buf; |
1456 | char *cp = *to; | |
1457 | ||
1458 | /* First see whether OPTARG is already in the path. */ | |
1459 | do | |
1460 | { | |
91d6fa6a NC |
1461 | if (strncmp (op_arg, cp, op_arg_len) == 0 |
1462 | && (cp[op_arg_len] == 0 | |
1463 | || cp[op_arg_len] == config.rpath_separator)) | |
7ee314fa AM |
1464 | /* We found it. */ |
1465 | break; | |
1466 | ||
1467 | /* Not yet found. */ | |
1468 | cp = strchr (cp, config.rpath_separator); | |
1469 | if (cp != NULL) | |
1470 | ++cp; | |
1471 | } | |
1472 | while (cp != NULL); | |
1473 | ||
1474 | if (cp == NULL) | |
1475 | { | |
91d6fa6a | 1476 | buf = xmalloc (to_len + op_arg_len + 2); |
7ee314fa | 1477 | sprintf (buf, "%s%c%s", *to, |
91d6fa6a | 1478 | config.rpath_separator, op_arg); |
7ee314fa AM |
1479 | free (*to); |
1480 | *to = buf; | |
1481 | } | |
1482 | } | |
1483 | } | |
1484 | ||
252b5132 RH |
1485 | /* This is called after the sections have been attached to output |
1486 | sections, but before any sizes or addresses have been set. */ | |
1487 | ||
1488 | static void | |
0c7a8e5a | 1489 | gld${EMULATION_NAME}_before_allocation (void) |
252b5132 RH |
1490 | { |
1491 | const char *rpath; | |
1492 | asection *sinterp; | |
7ee314fa | 1493 | bfd *abfd; |
4199e3b8 | 1494 | struct elf_link_hash_entry *ehdr_start = NULL; |
f9c316c4 | 1495 | struct bfd_link_hash_entry ehdr_start_save = ehdr_start_save; |
252b5132 | 1496 | |
b4d040b1 | 1497 | if (is_elf_hash_table (link_info.hash)) |
a5382c42 MR |
1498 | { |
1499 | _bfd_elf_tls_setup (link_info.output_bfd, &link_info); | |
e1918d23 | 1500 | |
cde7cb01 MR |
1501 | /* Make __ehdr_start hidden if it has been referenced, to |
1502 | prevent the symbol from being dynamic. */ | |
c2763e27 RM |
1503 | if (!link_info.relocatable) |
1504 | { | |
1505 | struct elf_link_hash_entry *h | |
1506 | = elf_link_hash_lookup (elf_hash_table (&link_info), "__ehdr_start", | |
1507 | FALSE, FALSE, TRUE); | |
1508 | ||
1509 | /* Only adjust the export class if the symbol was referenced | |
1510 | and not defined, otherwise leave it alone. */ | |
1511 | if (h != NULL | |
1512 | && (h->root.type == bfd_link_hash_new | |
1513 | || h->root.type == bfd_link_hash_undefined | |
1514 | || h->root.type == bfd_link_hash_undefweak | |
1515 | || h->root.type == bfd_link_hash_common)) | |
1516 | { | |
1517 | _bfd_elf_link_hash_hide_symbol (&link_info, h, TRUE); | |
1518 | if (ELF_ST_VISIBILITY (h->other) != STV_INTERNAL) | |
1519 | h->other = (h->other & ~ELF_ST_VISIBILITY (-1)) | STV_HIDDEN; | |
4199e3b8 AM |
1520 | /* Don't leave the symbol undefined. Undefined hidden |
1521 | symbols typically won't have dynamic relocations, but | |
1522 | we most likely will need dynamic relocations for | |
1523 | __ehdr_start if we are building a PIE or shared | |
1524 | library. */ | |
1525 | ehdr_start = h; | |
1526 | ehdr_start_save = h->root; | |
1527 | h->root.type = bfd_link_hash_defined; | |
1528 | h->root.u.def.section = bfd_abs_section_ptr; | |
1529 | h->root.u.def.value = 0; | |
c2763e27 RM |
1530 | } |
1531 | } | |
cde7cb01 | 1532 | |
a5382c42 MR |
1533 | /* If we are going to make any variable assignments, we need to |
1534 | let the ELF backend know about them in case the variables are | |
1535 | referred to by dynamic objects. */ | |
1536 | lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment); | |
1537 | } | |
252b5132 RH |
1538 | |
1539 | /* Let the ELF backend work out the sizes of any sections required | |
1540 | by dynamic linking. */ | |
1541 | rpath = command_line.rpath; | |
1542 | if (rpath == NULL) | |
1543 | rpath = (const char *) getenv ("LD_RUN_PATH"); | |
7ee314fa AM |
1544 | |
1545 | for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next) | |
8dd881b6 L |
1546 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
1547 | { | |
1548 | const char *audit_libs = elf_dt_audit (abfd); | |
7ee314fa | 1549 | |
4724d37e | 1550 | /* If the input bfd contains an audit entry, we need to add it as |
8dd881b6 L |
1551 | a dep audit entry. */ |
1552 | if (audit_libs && *audit_libs != '\0') | |
1553 | { | |
1554 | char *cp = xstrdup (audit_libs); | |
1555 | do | |
1556 | { | |
1557 | int more = 0; | |
1558 | char *cp2 = strchr (cp, config.rpath_separator); | |
7ee314fa | 1559 | |
8dd881b6 L |
1560 | if (cp2) |
1561 | { | |
1562 | *cp2 = '\0'; | |
1563 | more = 1; | |
1564 | } | |
7ee314fa | 1565 | |
8dd881b6 L |
1566 | if (cp != NULL && *cp != '\0') |
1567 | gld${EMULATION_NAME}_append_to_separated_string (&depaudit, cp); | |
1568 | ||
1569 | cp = more ? ++cp2 : NULL; | |
1570 | } | |
1571 | while (cp != NULL); | |
1572 | } | |
1573 | } | |
7ee314fa | 1574 | |
5a580b3a | 1575 | if (! (bfd_elf_size_dynamic_sections |
f13a99db | 1576 | (link_info.output_bfd, command_line.soname, rpath, |
7ee314fa | 1577 | command_line.filter_shlib, audit, depaudit, |
252b5132 | 1578 | (const char * const *) command_line.auxiliary_filters, |
fd91d419 | 1579 | &link_info, &sinterp))) |
252b5132 | 1580 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); |
8423293d | 1581 | |
57e6abd2 | 1582 | ${ELF_INTERPRETER_SET_DEFAULT} |
252b5132 RH |
1583 | /* Let the user override the dynamic linker we are using. */ |
1584 | if (command_line.interpreter != NULL | |
1585 | && sinterp != NULL) | |
1586 | { | |
1587 | sinterp->contents = (bfd_byte *) command_line.interpreter; | |
eea6121a | 1588 | sinterp->size = strlen (command_line.interpreter) + 1; |
252b5132 RH |
1589 | } |
1590 | ||
1591 | /* Look for any sections named .gnu.warning. As a GNU extensions, | |
1592 | we treat such sections as containing warning messages. We print | |
1593 | out the warning message, and then zero out the section size so | |
1594 | that it does not get copied into the output file. */ | |
1595 | ||
1596 | { | |
1597 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
1598 | { | |
1599 | asection *s; | |
1600 | bfd_size_type sz; | |
1601 | char *msg; | |
b34976b6 | 1602 | bfd_boolean ret; |
252b5132 | 1603 | |
66be1055 | 1604 | if (is->flags.just_syms) |
252b5132 RH |
1605 | continue; |
1606 | ||
1607 | s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning"); | |
1608 | if (s == NULL) | |
1609 | continue; | |
1610 | ||
eea6121a | 1611 | sz = s->size; |
1e9cc1c2 | 1612 | msg = (char *) xmalloc ((size_t) (sz + 1)); |
bc251d50 | 1613 | if (! bfd_get_section_contents (is->the_bfd, s, msg, |
8c675694 | 1614 | (file_ptr) 0, sz)) |
252b5132 RH |
1615 | einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n", |
1616 | is->the_bfd); | |
bc251d50 | 1617 | msg[sz] = '\0'; |
252b5132 RH |
1618 | ret = link_info.callbacks->warning (&link_info, msg, |
1619 | (const char *) NULL, | |
1620 | is->the_bfd, (asection *) NULL, | |
1621 | (bfd_vma) 0); | |
1622 | ASSERT (ret); | |
1623 | free (msg); | |
1624 | ||
9e3be61d AM |
1625 | /* Clobber the section size, so that we don't waste space |
1626 | copying the warning into the output file. If we've already | |
1627 | sized the output section, adjust its size. The adjustment | |
1628 | is on rawsize because targets that size sections early will | |
1629 | have called lang_reset_memory_regions after sizing. */ | |
1630 | if (s->output_section != NULL | |
1631 | && s->output_section->rawsize >= s->size) | |
1632 | s->output_section->rawsize -= s->size; | |
1633 | ||
eea6121a | 1634 | s->size = 0; |
11d2f718 | 1635 | |
9e3be61d AM |
1636 | /* Also set SEC_EXCLUDE, so that local symbols defined in the |
1637 | warning section don't get copied to the output. */ | |
a14a5de3 | 1638 | s->flags |= SEC_EXCLUDE | SEC_KEEP; |
252b5132 RH |
1639 | } |
1640 | } | |
8423293d | 1641 | |
1e035701 | 1642 | before_allocation_default (); |
8423293d | 1643 | |
f13a99db | 1644 | if (!bfd_elf_size_dynsym_hash_dynstr (link_info.output_bfd, &link_info)) |
8423293d | 1645 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); |
4199e3b8 AM |
1646 | |
1647 | if (ehdr_start != NULL) | |
1648 | { | |
1649 | /* If we twiddled __ehdr_start to defined earlier, put it back | |
1650 | as it was. */ | |
1651 | ehdr_start->root.type = ehdr_start_save.type; | |
1652 | ehdr_start->root.u = ehdr_start_save.u; | |
1653 | } | |
252b5132 RH |
1654 | } |
1655 | ||
41392f03 AM |
1656 | EOF |
1657 | fi | |
1658 | ||
1659 | if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then | |
92b93329 | 1660 | fragment <<EOF |
252b5132 | 1661 | |
04925e1e AM |
1662 | /* Try to open a dynamic archive. This is where we know that ELF |
1663 | dynamic libraries have an extension of .so (or .sl on oddball systems | |
1664 | like hpux). */ | |
1665 | ||
b34976b6 | 1666 | static bfd_boolean |
0c7a8e5a AM |
1667 | gld${EMULATION_NAME}_open_dynamic_archive |
1668 | (const char *arch, search_dirs_type *search, lang_input_statement_type *entry) | |
252b5132 | 1669 | { |
04925e1e AM |
1670 | const char *filename; |
1671 | char *string; | |
d4ae5fb0 AM |
1672 | size_t len; |
1673 | bfd_boolean opened = FALSE; | |
252b5132 | 1674 | |
66be1055 | 1675 | if (! entry->flags.maybe_archive) |
b34976b6 | 1676 | return FALSE; |
252b5132 | 1677 | |
04925e1e | 1678 | filename = entry->filename; |
d4ae5fb0 AM |
1679 | len = strlen (search->name) + strlen (filename); |
1680 | if (entry->flags.full_name_provided) | |
1681 | { | |
1682 | len += sizeof "/"; | |
1683 | string = (char *) xmalloc (len); | |
1684 | sprintf (string, "%s/%s", search->name, filename); | |
1685 | } | |
1686 | else | |
1687 | { | |
1688 | size_t xlen = 0; | |
252b5132 | 1689 | |
d4ae5fb0 | 1690 | len += strlen (arch) + sizeof "/lib.so"; |
04925e1e | 1691 | #ifdef EXTRA_SHLIB_EXTENSION |
d4ae5fb0 AM |
1692 | xlen = (strlen (EXTRA_SHLIB_EXTENSION) > 3 |
1693 | ? strlen (EXTRA_SHLIB_EXTENSION) - 3 | |
1694 | : 0); | |
04925e1e | 1695 | #endif |
d4ae5fb0 AM |
1696 | string = (char *) xmalloc (len + xlen); |
1697 | sprintf (string, "%s/lib%s%s.so", search->name, filename, arch); | |
04925e1e | 1698 | #ifdef EXTRA_SHLIB_EXTENSION |
d4ae5fb0 AM |
1699 | /* Try the .so extension first. If that fails build a new filename |
1700 | using EXTRA_SHLIB_EXTENSION. */ | |
1701 | opened = ldfile_try_open_bfd (string, entry); | |
1702 | if (!opened) | |
1703 | strcpy (string + len - 4, EXTRA_SHLIB_EXTENSION); | |
04925e1e | 1704 | #endif |
d4ae5fb0 | 1705 | } |
04925e1e | 1706 | |
d4ae5fb0 | 1707 | if (!opened && !ldfile_try_open_bfd (string, entry)) |
252b5132 | 1708 | { |
04925e1e | 1709 | free (string); |
b34976b6 | 1710 | return FALSE; |
04925e1e | 1711 | } |
252b5132 | 1712 | |
04925e1e | 1713 | entry->filename = string; |
252b5132 | 1714 | |
04925e1e AM |
1715 | /* We have found a dynamic object to include in the link. The ELF |
1716 | backend linker will create a DT_NEEDED entry in the .dynamic | |
1717 | section naming this file. If this file includes a DT_SONAME | |
1718 | entry, it will be used. Otherwise, the ELF linker will just use | |
1719 | the name of the file. For an archive found by searching, like | |
1720 | this one, the DT_NEEDED entry should consist of just the name of | |
1721 | the file, without the path information used to find it. Note | |
1722 | that we only need to do this if we have a dynamic object; an | |
1723 | archive will never be referenced by a DT_NEEDED entry. | |
252b5132 | 1724 | |
04925e1e AM |
1725 | FIXME: This approach--using bfd_elf_set_dt_needed_name--is not |
1726 | very pretty. I haven't been able to think of anything that is | |
1727 | pretty, though. */ | |
1728 | if (bfd_check_format (entry->the_bfd, bfd_object) | |
1729 | && (entry->the_bfd->flags & DYNAMIC) != 0) | |
1730 | { | |
66be1055 | 1731 | ASSERT (entry->flags.maybe_archive && entry->flags.search_dirs); |
252b5132 | 1732 | |
04925e1e | 1733 | /* Rather than duplicating the logic above. Just use the |
1c9acd94 | 1734 | filename we recorded earlier. */ |
04925e1e | 1735 | |
d4ae5fb0 AM |
1736 | if (!entry->flags.full_name_provided) |
1737 | filename = lbasename (entry->filename); | |
1c9acd94 | 1738 | bfd_elf_set_dt_needed_name (entry->the_bfd, filename); |
04925e1e AM |
1739 | } |
1740 | ||
b34976b6 | 1741 | return TRUE; |
04925e1e AM |
1742 | } |
1743 | ||
41392f03 AM |
1744 | EOF |
1745 | fi | |
cde43e70 AM |
1746 | |
1747 | if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then | |
92b93329 | 1748 | fragment <<EOF |
41392f03 | 1749 | |
afd7a018 | 1750 | /* A variant of lang_output_section_find used by place_orphan. */ |
04925e1e | 1751 | |
04925e1e | 1752 | static lang_output_section_statement_type * |
2a36a117 | 1753 | output_rel_find (asection *sec, int isdyn) |
04925e1e | 1754 | { |
04925e1e | 1755 | lang_output_section_statement_type *lookup; |
ba493122 | 1756 | lang_output_section_statement_type *last = NULL; |
2a36a117 | 1757 | lang_output_section_statement_type *last_alloc = NULL; |
48f2ff54 | 1758 | lang_output_section_statement_type *last_ro_alloc = NULL; |
ba493122 AM |
1759 | lang_output_section_statement_type *last_rel = NULL; |
1760 | lang_output_section_statement_type *last_rel_alloc = NULL; | |
24cdb50a | 1761 | int rela = sec->name[4] == 'a'; |
04925e1e | 1762 | |
afd7a018 AM |
1763 | for (lookup = &lang_output_section_statement.head->output_section_statement; |
1764 | lookup != NULL; | |
1765 | lookup = lookup->next) | |
04925e1e | 1766 | { |
66c103b7 | 1767 | if (lookup->constraint >= 0 |
0112cd26 | 1768 | && CONST_STRNEQ (lookup->name, ".rel")) |
04925e1e | 1769 | { |
24cdb50a | 1770 | int lookrela = lookup->name[4] == 'a'; |
ba493122 | 1771 | |
2a36a117 AM |
1772 | /* .rel.dyn must come before all other reloc sections, to suit |
1773 | GNU ld.so. */ | |
1774 | if (isdyn) | |
1775 | break; | |
1776 | ||
1777 | /* Don't place after .rel.plt as doing so results in wrong | |
1778 | dynamic tags. */ | |
1779 | if (strcmp (".plt", lookup->name + 4 + lookrela) == 0) | |
ba493122 | 1780 | break; |
2a36a117 AM |
1781 | |
1782 | if (rela == lookrela || last_rel == NULL) | |
24cdb50a | 1783 | last_rel = lookup; |
2a36a117 AM |
1784 | if ((rela == lookrela || last_rel_alloc == NULL) |
1785 | && lookup->bfd_section != NULL | |
ba493122 AM |
1786 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) |
1787 | last_rel_alloc = lookup; | |
04925e1e | 1788 | } |
2a36a117 AM |
1789 | |
1790 | last = lookup; | |
1791 | if (lookup->bfd_section != NULL | |
1792 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) | |
48f2ff54 AM |
1793 | { |
1794 | last_alloc = lookup; | |
1795 | if ((lookup->bfd_section->flags & SEC_READONLY) != 0) | |
1796 | last_ro_alloc = lookup; | |
1797 | } | |
252b5132 | 1798 | } |
ba493122 AM |
1799 | |
1800 | if (last_rel_alloc) | |
1801 | return last_rel_alloc; | |
1802 | ||
1803 | if (last_rel) | |
1804 | return last_rel; | |
1805 | ||
48f2ff54 AM |
1806 | if (last_ro_alloc) |
1807 | return last_ro_alloc; | |
1808 | ||
2a36a117 AM |
1809 | if (last_alloc) |
1810 | return last_alloc; | |
1811 | ||
ba493122 | 1812 | return last; |
252b5132 RH |
1813 | } |
1814 | ||
1815 | /* Place an orphan section. We use this to put random SHF_ALLOC | |
1816 | sections in the right segment. */ | |
1817 | ||
c2edb4b8 | 1818 | static lang_output_section_statement_type * |
8a99a385 AM |
1819 | gld${EMULATION_NAME}_place_orphan (asection *s, |
1820 | const char *secname, | |
1821 | int constraint) | |
252b5132 | 1822 | { |
afd7a018 AM |
1823 | static struct orphan_save hold[] = |
1824 | { | |
1825 | { ".text", | |
1826 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, | |
1827 | 0, 0, 0, 0 }, | |
1828 | { ".rodata", | |
1829 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1830 | 0, 0, 0, 0 }, | |
d85e71fe L |
1831 | { ".tdata", |
1832 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_THREAD_LOCAL, | |
1833 | 0, 0, 0, 0 }, | |
afd7a018 AM |
1834 | { ".data", |
1835 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, | |
1836 | 0, 0, 0, 0 }, | |
1837 | { ".bss", | |
1838 | SEC_ALLOC, | |
1839 | 0, 0, 0, 0 }, | |
1840 | { 0, | |
1841 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1842 | 0, 0, 0, 0 }, | |
1843 | { ".interp", | |
1844 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1845 | 0, 0, 0, 0 }, | |
1846 | { ".sdata", | |
1847 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA, | |
07890c07 | 1848 | 0, 0, 0, 0 }, |
175b7cd4 | 1849 | { ".comment", |
07890c07 AM |
1850 | SEC_HAS_CONTENTS, |
1851 | 0, 0, 0, 0 }, | |
afd7a018 AM |
1852 | }; |
1853 | enum orphan_save_index | |
1854 | { | |
1855 | orphan_text = 0, | |
1856 | orphan_rodata, | |
d85e71fe | 1857 | orphan_tdata, |
afd7a018 AM |
1858 | orphan_data, |
1859 | orphan_bss, | |
1860 | orphan_rel, | |
1861 | orphan_interp, | |
07890c07 AM |
1862 | orphan_sdata, |
1863 | orphan_nonalloc | |
afd7a018 AM |
1864 | }; |
1865 | static int orphan_init_done = 0; | |
6a345e87 | 1866 | struct orphan_save *place; |
afd7a018 | 1867 | lang_output_section_statement_type *after; |
252b5132 | 1868 | lang_output_section_statement_type *os; |
b5f14a6d | 1869 | lang_output_section_statement_type *match_by_name = NULL; |
24cdb50a | 1870 | int isdyn = 0; |
ecca9871 L |
1871 | int iself = s->owner->xvec->flavour == bfd_target_elf_flavour; |
1872 | unsigned int sh_type = iself ? elf_section_type (s) : SHT_NULL; | |
252b5132 | 1873 | |
1049f94e | 1874 | if (! link_info.relocatable |
24cdb50a | 1875 | && link_info.combreloc |
ecca9871 | 1876 | && (s->flags & SEC_ALLOC)) |
24cdb50a | 1877 | { |
ecca9871 L |
1878 | if (iself) |
1879 | switch (sh_type) | |
1880 | { | |
1881 | case SHT_RELA: | |
1882 | secname = ".rela.dyn"; | |
1883 | isdyn = 1; | |
1884 | break; | |
1885 | case SHT_REL: | |
1886 | secname = ".rel.dyn"; | |
1887 | isdyn = 1; | |
1888 | break; | |
1889 | default: | |
1890 | break; | |
1891 | } | |
0112cd26 | 1892 | else if (CONST_STRNEQ (secname, ".rel")) |
ecca9871 L |
1893 | { |
1894 | secname = secname[4] == 'a' ? ".rela.dyn" : ".rel.dyn"; | |
1895 | isdyn = 1; | |
1896 | } | |
24cdb50a | 1897 | } |
aea4bd9d | 1898 | |
bcacc0f5 | 1899 | /* Look through the script to see where to place this section. */ |
d127ecce AM |
1900 | if (constraint == 0) |
1901 | for (os = lang_output_section_find (secname); | |
1902 | os != NULL; | |
1903 | os = next_matching_output_section_statement (os, 0)) | |
1904 | { | |
1905 | /* If we don't match an existing output section, tell | |
1906 | lang_insert_orphan to create a new output section. */ | |
1907 | constraint = SPECIAL; | |
1908 | ||
1909 | if (os->bfd_section != NULL | |
1910 | && (os->bfd_section->flags == 0 | |
1911 | || (_bfd_elf_match_sections_by_type (link_info.output_bfd, | |
1912 | os->bfd_section, | |
1913 | s->owner, s) | |
1914 | && ((s->flags ^ os->bfd_section->flags) | |
1915 | & (SEC_LOAD | SEC_ALLOC)) == 0))) | |
1916 | { | |
1917 | /* We already have an output section statement with this | |
1918 | name, and its bfd section has compatible flags. | |
1919 | If the section already exists but does not have any flags | |
1920 | set, then it has been created by the linker, probably as a | |
1921 | result of a --section-start command line switch. */ | |
b9c361e0 | 1922 | lang_add_section (&os->children, s, NULL, os); |
d127ecce AM |
1923 | return os; |
1924 | } | |
b5f14a6d DD |
1925 | |
1926 | /* Save unused output sections in case we can match them | |
1927 | against orphans later. */ | |
1928 | if (os->bfd_section == NULL) | |
1929 | match_by_name = os; | |
d127ecce | 1930 | } |
252b5132 | 1931 | |
b5f14a6d DD |
1932 | /* If we didn't match an active output section, see if we matched an |
1933 | unused one and use that. */ | |
1934 | if (match_by_name) | |
1935 | { | |
b9c361e0 | 1936 | lang_add_section (&match_by_name->children, s, NULL, match_by_name); |
b5f14a6d DD |
1937 | return match_by_name; |
1938 | } | |
1939 | ||
afd7a018 AM |
1940 | if (!orphan_init_done) |
1941 | { | |
1942 | struct orphan_save *ho; | |
07890c07 | 1943 | |
afd7a018 AM |
1944 | for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho) |
1945 | if (ho->name != NULL) | |
1946 | { | |
1947 | ho->os = lang_output_section_find (ho->name); | |
1948 | if (ho->os != NULL && ho->os->flags == 0) | |
1949 | ho->os->flags = ho->flags; | |
1950 | } | |
1951 | orphan_init_done = 1; | |
1952 | } | |
252b5132 RH |
1953 | |
1954 | /* If this is a final link, then always put .gnu.warning.SYMBOL | |
1955 | sections into the .text section to get them out of the way. */ | |
36af4a4e | 1956 | if (link_info.executable |
1049f94e | 1957 | && ! link_info.relocatable |
bcacc0f5 | 1958 | && CONST_STRNEQ (s->name, ".gnu.warning.") |
afd7a018 | 1959 | && hold[orphan_text].os != NULL) |
252b5132 | 1960 | { |
c2edb4b8 | 1961 | os = hold[orphan_text].os; |
b9c361e0 | 1962 | lang_add_section (&os->children, s, NULL, os); |
c2edb4b8 | 1963 | return os; |
252b5132 RH |
1964 | } |
1965 | ||
1966 | /* Decide which segment the section should go in based on the | |
1967 | section name and section flags. We put loadable .note sections | |
1968 | right after the .interp section, so that the PT_NOTE segment is | |
1969 | stored right after the program headers where the OS can read it | |
1970 | in the first page. */ | |
aea4bd9d | 1971 | |
71bfc0ae | 1972 | place = NULL; |
07890c07 AM |
1973 | if ((s->flags & (SEC_ALLOC | SEC_DEBUGGING)) == 0) |
1974 | place = &hold[orphan_nonalloc]; | |
1975 | else if ((s->flags & SEC_ALLOC) == 0) | |
71bfc0ae | 1976 | ; |
252b5132 | 1977 | else if ((s->flags & SEC_LOAD) != 0 |
ecca9871 | 1978 | && ((iself && sh_type == SHT_NOTE) |
0112cd26 | 1979 | || (!iself && CONST_STRNEQ (secname, ".note")))) |
afd7a018 | 1980 | place = &hold[orphan_interp]; |
04c932a2 | 1981 | else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) == 0) |
afd7a018 AM |
1982 | place = &hold[orphan_bss]; |
1983 | else if ((s->flags & SEC_SMALL_DATA) != 0) | |
1984 | place = &hold[orphan_sdata]; | |
d85e71fe L |
1985 | else if ((s->flags & SEC_THREAD_LOCAL) != 0) |
1986 | place = &hold[orphan_tdata]; | |
afd7a018 AM |
1987 | else if ((s->flags & SEC_READONLY) == 0) |
1988 | place = &hold[orphan_data]; | |
ecca9871 | 1989 | else if (((iself && (sh_type == SHT_RELA || sh_type == SHT_REL)) |
0112cd26 | 1990 | || (!iself && CONST_STRNEQ (secname, ".rel"))) |
afd7a018 AM |
1991 | && (s->flags & SEC_LOAD) != 0) |
1992 | place = &hold[orphan_rel]; | |
1993 | else if ((s->flags & SEC_CODE) == 0) | |
1994 | place = &hold[orphan_rodata]; | |
1995 | else | |
1996 | place = &hold[orphan_text]; | |
71bfc0ae | 1997 | |
afd7a018 | 1998 | after = NULL; |
5ba47421 | 1999 | if (place != NULL) |
252b5132 | 2000 | { |
afd7a018 | 2001 | if (place->os == NULL) |
5ba47421 | 2002 | { |
afd7a018 AM |
2003 | if (place->name != NULL) |
2004 | place->os = lang_output_section_find (place->name); | |
2005 | else | |
2006 | place->os = output_rel_find (s, isdyn); | |
5ba47421 | 2007 | } |
afd7a018 AM |
2008 | after = place->os; |
2009 | if (after == NULL) | |
390fbbf1 AM |
2010 | after = lang_output_section_find_by_flags |
2011 | (s, &place->os, _bfd_elf_match_sections_by_type); | |
afd7a018 AM |
2012 | if (after == NULL) |
2013 | /* *ABS* is always the first output section statement. */ | |
2014 | after = &lang_output_section_statement.head->output_section_statement; | |
252b5132 RH |
2015 | } |
2016 | ||
c2edb4b8 | 2017 | return lang_insert_orphan (s, secname, constraint, after, place, NULL, NULL); |
252b5132 | 2018 | } |
c56feb2b AM |
2019 | EOF |
2020 | fi | |
2021 | ||
eaeb0a9d | 2022 | if test x"$LDEMUL_AFTER_ALLOCATION" != xgld"$EMULATION_NAME"_after_allocation; then |
92b93329 | 2023 | fragment <<EOF |
252b5132 | 2024 | |
deb04cdb | 2025 | static void |
eaeb0a9d | 2026 | gld${EMULATION_NAME}_after_allocation (void) |
deb04cdb | 2027 | { |
f13a99db AM |
2028 | bfd_boolean need_layout = bfd_elf_discard_info (link_info.output_bfd, |
2029 | &link_info); | |
8ded5a0f | 2030 | gld${EMULATION_NAME}_map_segments (need_layout); |
73d074b4 | 2031 | } |
41392f03 AM |
2032 | EOF |
2033 | fi | |
2034 | ||
2035 | if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then | |
92b93329 | 2036 | fragment <<EOF |
252b5132 RH |
2037 | |
2038 | static char * | |
0c7a8e5a | 2039 | gld${EMULATION_NAME}_get_script (int *isfile) |
252b5132 RH |
2040 | EOF |
2041 | ||
7225345d | 2042 | if test x"$COMPILE_IN" = xyes |
252b5132 RH |
2043 | then |
2044 | # Scripts compiled in. | |
2045 | ||
2046 | # sed commands to quote an ld script as a C string. | |
597e2591 | 2047 | sc="-f stringify.sed" |
252b5132 | 2048 | |
92b93329 | 2049 | fragment <<EOF |
60bcf0fa | 2050 | { |
252b5132 RH |
2051 | *isfile = 0; |
2052 | ||
1049f94e | 2053 | if (link_info.relocatable && config.build_constructors) |
597e2591 | 2054 | return |
252b5132 | 2055 | EOF |
afd7a018 AM |
2056 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c |
2057 | echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c | |
2058 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c | |
2059 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c | |
2060 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c | |
61585df2 | 2061 | if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else |
afd7a018 AM |
2062 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c |
2063 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c | |
db6751f2 | 2064 | fi |
36af4a4e JJ |
2065 | if test -n "$GENERATE_PIE_SCRIPT" ; then |
2066 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
8c37241b JJ |
2067 | echo ' ; else if (link_info.pie && link_info.combreloc' >> e${EMULATION_NAME}.c |
2068 | echo ' && link_info.relro' >> e${EMULATION_NAME}.c | |
fbfca19e | 2069 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2070 | sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c |
36af4a4e | 2071 | echo ' ; else if (link_info.pie && link_info.combreloc) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2072 | sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c |
36af4a4e | 2073 | fi |
afd7a018 AM |
2074 | echo ' ; else if (link_info.pie) return' >> e${EMULATION_NAME}.c |
2075 | sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c | |
36af4a4e | 2076 | fi |
252b5132 | 2077 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then |
82434356 | 2078 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then |
8c37241b JJ |
2079 | echo ' ; else if (link_info.shared && link_info.combreloc' >> e${EMULATION_NAME}.c |
2080 | echo ' && link_info.relro' >> e${EMULATION_NAME}.c | |
fbfca19e | 2081 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2082 | sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c |
db6751f2 | 2083 | echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2084 | sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c |
82434356 | 2085 | fi |
afd7a018 AM |
2086 | echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c |
2087 | sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c | |
252b5132 | 2088 | fi |
82434356 | 2089 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then |
8c37241b | 2090 | echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c |
fbfca19e | 2091 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 AM |
2092 | sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c |
2093 | echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c | |
2094 | sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c | |
82434356 | 2095 | fi |
afd7a018 AM |
2096 | echo ' ; else return' >> e${EMULATION_NAME}.c |
2097 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c | |
2098 | echo '; }' >> e${EMULATION_NAME}.c | |
252b5132 RH |
2099 | |
2100 | else | |
2101 | # Scripts read from the filesystem. | |
2102 | ||
92b93329 | 2103 | fragment <<EOF |
60bcf0fa | 2104 | { |
252b5132 RH |
2105 | *isfile = 1; |
2106 | ||
1049f94e | 2107 | if (link_info.relocatable && config.build_constructors) |
252b5132 | 2108 | return "ldscripts/${EMULATION_NAME}.xu"; |
1049f94e | 2109 | else if (link_info.relocatable) |
252b5132 RH |
2110 | return "ldscripts/${EMULATION_NAME}.xr"; |
2111 | else if (!config.text_read_only) | |
2112 | return "ldscripts/${EMULATION_NAME}.xbn"; | |
a060b769 AM |
2113 | EOF |
2114 | if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : | |
2115 | else | |
92b93329 | 2116 | fragment <<EOF |
252b5132 RH |
2117 | else if (!config.magic_demand_paged) |
2118 | return "ldscripts/${EMULATION_NAME}.xn"; | |
a060b769 AM |
2119 | EOF |
2120 | fi | |
36af4a4e JJ |
2121 | if test -n "$GENERATE_PIE_SCRIPT" ; then |
2122 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 2123 | fragment <<EOF |
8c37241b | 2124 | else if (link_info.pie && link_info.combreloc |
fbfca19e | 2125 | && link_info.relro && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 2126 | return "ldscripts/${EMULATION_NAME}.xdw"; |
36af4a4e JJ |
2127 | else if (link_info.pie && link_info.combreloc) |
2128 | return "ldscripts/${EMULATION_NAME}.xdc"; | |
2129 | EOF | |
2130 | fi | |
92b93329 | 2131 | fragment <<EOF |
36af4a4e JJ |
2132 | else if (link_info.pie) |
2133 | return "ldscripts/${EMULATION_NAME}.xd"; | |
2134 | EOF | |
2135 | fi | |
a060b769 AM |
2136 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then |
2137 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 2138 | fragment <<EOF |
8c37241b | 2139 | else if (link_info.shared && link_info.combreloc |
fbfca19e | 2140 | && link_info.relro && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 2141 | return "ldscripts/${EMULATION_NAME}.xsw"; |
a060b769 AM |
2142 | else if (link_info.shared && link_info.combreloc) |
2143 | return "ldscripts/${EMULATION_NAME}.xsc"; | |
2144 | EOF | |
2145 | fi | |
92b93329 | 2146 | fragment <<EOF |
252b5132 RH |
2147 | else if (link_info.shared) |
2148 | return "ldscripts/${EMULATION_NAME}.xs"; | |
a060b769 AM |
2149 | EOF |
2150 | fi | |
2151 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 2152 | fragment <<EOF |
8c37241b | 2153 | else if (link_info.combreloc && link_info.relro |
fbfca19e | 2154 | && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 2155 | return "ldscripts/${EMULATION_NAME}.xw"; |
a060b769 AM |
2156 | else if (link_info.combreloc) |
2157 | return "ldscripts/${EMULATION_NAME}.xc"; | |
2158 | EOF | |
2159 | fi | |
92b93329 | 2160 | fragment <<EOF |
252b5132 RH |
2161 | else |
2162 | return "ldscripts/${EMULATION_NAME}.x"; | |
2163 | } | |
252b5132 | 2164 | |
3b108066 | 2165 | EOF |
41392f03 AM |
2166 | fi |
2167 | fi | |
3b108066 | 2168 | |
e0ee487b | 2169 | if test -n "$PARSE_AND_LIST_PROLOGUE" ; then |
92b93329 | 2170 | fragment <<EOF |
e0ee487b L |
2171 | $PARSE_AND_LIST_PROLOGUE |
2172 | EOF | |
2173 | fi | |
2174 | ||
92b93329 | 2175 | fragment <<EOF |
e0ee487b | 2176 | |
6c1439be L |
2177 | #define OPTION_DISABLE_NEW_DTAGS (400) |
2178 | #define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1) | |
a1ab1d2a | 2179 | #define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1) |
65765700 | 2180 | #define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1) |
b58f81ae | 2181 | #define OPTION_EXCLUDE_LIBS (OPTION_EH_FRAME_HDR + 1) |
fdc90cb4 | 2182 | #define OPTION_HASH_STYLE (OPTION_EXCLUDE_LIBS + 1) |
c0065db7 | 2183 | #define OPTION_BUILD_ID (OPTION_HASH_STYLE + 1) |
7ee314fa | 2184 | #define OPTION_AUDIT (OPTION_BUILD_ID + 1) |
e13629bc | 2185 | |
3bcf5557 | 2186 | static void |
0c7a8e5a AM |
2187 | gld${EMULATION_NAME}_add_options |
2188 | (int ns, char **shortopts, int nl, struct option **longopts, | |
2189 | int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED) | |
e0ee487b | 2190 | { |
fb42df5e AM |
2191 | EOF |
2192 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2193 | fragment <<EOF | |
7ee314fa | 2194 | static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:P:"; |
fb42df5e AM |
2195 | EOF |
2196 | else | |
2197 | fragment <<EOF | |
2198 | static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:"; | |
2199 | EOF | |
2200 | fi | |
2201 | fragment <<EOF | |
3bcf5557 | 2202 | static const struct option xtra_long[] = { |
fb42df5e AM |
2203 | EOF |
2204 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2205 | fragment <<EOF | |
7ee314fa | 2206 | {"audit", required_argument, NULL, OPTION_AUDIT}, |
fb42df5e AM |
2207 | {"Bgroup", no_argument, NULL, OPTION_GROUP}, |
2208 | EOF | |
2209 | fi | |
2210 | fragment <<EOF | |
2211 | {"build-id", optional_argument, NULL, OPTION_BUILD_ID}, | |
e0ee487b | 2212 | EOF |
e0ee487b | 2213 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then |
92b93329 | 2214 | fragment <<EOF |
fb42df5e | 2215 | {"depaudit", required_argument, NULL, 'P'}, |
3bcf5557 AM |
2216 | {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS}, |
2217 | {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS}, | |
2218 | {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR}, | |
b58f81ae | 2219 | {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS}, |
fdc90cb4 | 2220 | {"hash-style", required_argument, NULL, OPTION_HASH_STYLE}, |
e0ee487b L |
2221 | EOF |
2222 | fi | |
e0ee487b | 2223 | if test -n "$PARSE_AND_LIST_LONGOPTS" ; then |
92b93329 | 2224 | fragment <<EOF |
3bcf5557 | 2225 | $PARSE_AND_LIST_LONGOPTS |
e0ee487b L |
2226 | EOF |
2227 | fi | |
92b93329 | 2228 | fragment <<EOF |
3bcf5557 AM |
2229 | {NULL, no_argument, NULL, 0} |
2230 | }; | |
2231 | ||
2232 | *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short)); | |
2233 | memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short)); | |
2234 | *longopts = (struct option *) | |
2235 | xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); | |
2236 | memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); | |
2237 | } | |
04925e1e | 2238 | |
24382dca | 2239 | #define DEFAULT_BUILD_ID_STYLE "sha1" |
c0065db7 | 2240 | |
3bcf5557 | 2241 | static bfd_boolean |
0c7a8e5a | 2242 | gld${EMULATION_NAME}_handle_option (int optc) |
e0ee487b | 2243 | { |
e0ee487b L |
2244 | switch (optc) |
2245 | { | |
2246 | default: | |
3bcf5557 | 2247 | return FALSE; |
6c1439be | 2248 | |
c0065db7 | 2249 | case OPTION_BUILD_ID: |
30e8ee25 | 2250 | if (emit_note_gnu_build_id != NULL) |
c0065db7 | 2251 | { |
30e8ee25 AM |
2252 | free ((char *) emit_note_gnu_build_id); |
2253 | emit_note_gnu_build_id = NULL; | |
c0065db7 RM |
2254 | } |
2255 | if (optarg == NULL) | |
2256 | optarg = DEFAULT_BUILD_ID_STYLE; | |
2257 | if (strcmp (optarg, "none")) | |
30e8ee25 | 2258 | emit_note_gnu_build_id = xstrdup (optarg); |
c0065db7 | 2259 | break; |
fb42df5e AM |
2260 | |
2261 | EOF | |
2262 | ||
2263 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2264 | fragment <<EOF | |
7ee314fa | 2265 | case OPTION_AUDIT: |
4724d37e | 2266 | gld${EMULATION_NAME}_append_to_separated_string (&audit, optarg); |
7ee314fa | 2267 | break; |
fb42df5e | 2268 | |
7ee314fa AM |
2269 | case 'P': |
2270 | gld${EMULATION_NAME}_append_to_separated_string (&depaudit, optarg); | |
2271 | break; | |
c0065db7 | 2272 | |
6c1439be | 2273 | case OPTION_DISABLE_NEW_DTAGS: |
b34976b6 | 2274 | link_info.new_dtags = FALSE; |
6c1439be L |
2275 | break; |
2276 | ||
2277 | case OPTION_ENABLE_NEW_DTAGS: | |
b34976b6 | 2278 | link_info.new_dtags = TRUE; |
6c1439be L |
2279 | break; |
2280 | ||
65765700 | 2281 | case OPTION_EH_FRAME_HDR: |
b34976b6 | 2282 | link_info.eh_frame_hdr = TRUE; |
65765700 JJ |
2283 | break; |
2284 | ||
a1ab1d2a UD |
2285 | case OPTION_GROUP: |
2286 | link_info.flags_1 |= (bfd_vma) DF_1_GROUP; | |
2287 | /* Groups must be self-contained. */ | |
560e09e9 NC |
2288 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; |
2289 | link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR; | |
a1ab1d2a UD |
2290 | break; |
2291 | ||
b58f81ae DJ |
2292 | case OPTION_EXCLUDE_LIBS: |
2293 | add_excluded_libs (optarg); | |
2294 | break; | |
2295 | ||
fdc90cb4 JJ |
2296 | case OPTION_HASH_STYLE: |
2297 | link_info.emit_hash = FALSE; | |
2298 | link_info.emit_gnu_hash = FALSE; | |
2299 | if (strcmp (optarg, "sysv") == 0) | |
2300 | link_info.emit_hash = TRUE; | |
2301 | else if (strcmp (optarg, "gnu") == 0) | |
2302 | link_info.emit_gnu_hash = TRUE; | |
2303 | else if (strcmp (optarg, "both") == 0) | |
2304 | { | |
2305 | link_info.emit_hash = TRUE; | |
2306 | link_info.emit_gnu_hash = TRUE; | |
2307 | } | |
2308 | else | |
2309 | einfo (_("%P%F: invalid hash style \`%s'\n"), optarg); | |
2310 | break; | |
2311 | ||
fb42df5e AM |
2312 | EOF |
2313 | fi | |
2314 | fragment <<EOF | |
e0ee487b | 2315 | case 'z': |
fb42df5e AM |
2316 | if (strcmp (optarg, "defs") == 0) |
2317 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; | |
2318 | else if (strcmp (optarg, "muldefs") == 0) | |
2319 | link_info.allow_multiple_definition = TRUE; | |
2320 | else if (CONST_STRNEQ (optarg, "max-page-size=")) | |
2321 | { | |
2322 | char *end; | |
2323 | ||
2324 | config.maxpagesize = strtoul (optarg + 14, &end, 0); | |
2325 | if (*end || (config.maxpagesize & (config.maxpagesize - 1)) != 0) | |
2326 | einfo (_("%P%F: invalid maxium page size \`%s'\n"), | |
2327 | optarg + 14); | |
2328 | } | |
2329 | else if (CONST_STRNEQ (optarg, "common-page-size=")) | |
2330 | { | |
2331 | char *end; | |
2332 | config.commonpagesize = strtoul (optarg + 17, &end, 0); | |
2333 | if (*end | |
2334 | || (config.commonpagesize & (config.commonpagesize - 1)) != 0) | |
2335 | einfo (_("%P%F: invalid common page size \`%s'\n"), | |
2336 | optarg + 17); | |
2337 | } | |
04c3a755 NS |
2338 | else if (CONST_STRNEQ (optarg, "stack-size=")) |
2339 | { | |
2340 | char *end; | |
2341 | link_info.stacksize = strtoul (optarg + 11, &end, 0); | |
2342 | if (*end || link_info.stacksize < 0) | |
2343 | einfo (_("%P%F: invalid stack size \`%s'\n"), optarg + 11); | |
2344 | if (!link_info.stacksize) | |
2345 | /* Use -1 for explicit no-stack, because zero means | |
2346 | 'default'. */ | |
2347 | link_info.stacksize = -1; | |
2348 | } | |
fb42df5e AM |
2349 | else if (strcmp (optarg, "execstack") == 0) |
2350 | { | |
2351 | link_info.execstack = TRUE; | |
2352 | link_info.noexecstack = FALSE; | |
2353 | } | |
2354 | else if (strcmp (optarg, "noexecstack") == 0) | |
2355 | { | |
2356 | link_info.noexecstack = TRUE; | |
2357 | link_info.execstack = FALSE; | |
2358 | } | |
2359 | EOF | |
2360 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2361 | fragment <<EOF | |
b039ef04 L |
2362 | else if (strcmp (optarg, "global") == 0) |
2363 | link_info.flags_1 |= (bfd_vma) DF_1_GLOBAL; | |
fb42df5e | 2364 | else if (strcmp (optarg, "initfirst") == 0) |
e0ee487b L |
2365 | link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST; |
2366 | else if (strcmp (optarg, "interpose") == 0) | |
2367 | link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE; | |
2368 | else if (strcmp (optarg, "loadfltr") == 0) | |
2369 | link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR; | |
2370 | else if (strcmp (optarg, "nodefaultlib") == 0) | |
2371 | link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB; | |
2372 | else if (strcmp (optarg, "nodelete") == 0) | |
2373 | link_info.flags_1 |= (bfd_vma) DF_1_NODELETE; | |
2374 | else if (strcmp (optarg, "nodlopen") == 0) | |
2375 | link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN; | |
2376 | else if (strcmp (optarg, "nodump") == 0) | |
2377 | link_info.flags_1 |= (bfd_vma) DF_1_NODUMP; | |
2378 | else if (strcmp (optarg, "now") == 0) | |
2379 | { | |
2380 | link_info.flags |= (bfd_vma) DF_BIND_NOW; | |
2381 | link_info.flags_1 |= (bfd_vma) DF_1_NOW; | |
2382 | } | |
5fa222e4 AM |
2383 | else if (strcmp (optarg, "lazy") == 0) |
2384 | { | |
2385 | link_info.flags &= ~(bfd_vma) DF_BIND_NOW; | |
2386 | link_info.flags_1 &= ~(bfd_vma) DF_1_NOW; | |
2387 | } | |
e0ee487b L |
2388 | else if (strcmp (optarg, "origin") == 0) |
2389 | { | |
2390 | link_info.flags |= (bfd_vma) DF_ORIGIN; | |
2391 | link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN; | |
2392 | } | |
db6751f2 | 2393 | else if (strcmp (optarg, "combreloc") == 0) |
b34976b6 | 2394 | link_info.combreloc = TRUE; |
db6751f2 | 2395 | else if (strcmp (optarg, "nocombreloc") == 0) |
b34976b6 | 2396 | link_info.combreloc = FALSE; |
8bd621d8 | 2397 | else if (strcmp (optarg, "nocopyreloc") == 0) |
0c7a8e5a | 2398 | link_info.nocopyreloc = TRUE; |
8c37241b JJ |
2399 | else if (strcmp (optarg, "relro") == 0) |
2400 | link_info.relro = TRUE; | |
2401 | else if (strcmp (optarg, "norelro") == 0) | |
2402 | link_info.relro = FALSE; | |
c192a133 AM |
2403 | else if (strcmp (optarg, "text") == 0) |
2404 | link_info.error_textrel = TRUE; | |
2405 | else if (strcmp (optarg, "notext") == 0) | |
2406 | link_info.error_textrel = FALSE; | |
2407 | else if (strcmp (optarg, "textoff") == 0) | |
2408 | link_info.error_textrel = FALSE; | |
88b882e9 | 2409 | EOF |
fb42df5e | 2410 | fi |
88b882e9 | 2411 | |
92b93329 | 2412 | fragment <<EOF |
fb42df5e AM |
2413 | else |
2414 | einfo (_("%P: warning: -z %s ignored.\n"), optarg); | |
6c1439be | 2415 | break; |
e0ee487b | 2416 | EOF |
e0ee487b L |
2417 | |
2418 | if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then | |
92b93329 | 2419 | fragment <<EOF |
e0ee487b L |
2420 | $PARSE_AND_LIST_ARGS_CASES |
2421 | EOF | |
2422 | fi | |
2423 | ||
92b93329 | 2424 | fragment <<EOF |
e0ee487b L |
2425 | } |
2426 | ||
3bcf5557 | 2427 | return TRUE; |
e0ee487b L |
2428 | } |
2429 | ||
41392f03 | 2430 | EOF |
41392f03 | 2431 | |
4b209b22 | 2432 | if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then |
92b93329 | 2433 | fragment <<EOF |
41392f03 | 2434 | |
e0ee487b | 2435 | static void |
0c7a8e5a | 2436 | gld${EMULATION_NAME}_list_options (FILE * file) |
e0ee487b | 2437 | { |
fb42df5e AM |
2438 | EOF |
2439 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2440 | fragment <<EOF | |
7ee314fa AM |
2441 | fprintf (file, _("\ |
2442 | --audit=AUDITLIB Specify a library to use for auditing\n")); | |
2443 | fprintf (file, _("\ | |
fb42df5e AM |
2444 | -Bgroup Selects group name lookup rules for DSO\n")); |
2445 | EOF | |
2446 | fi | |
2447 | fragment <<EOF | |
2448 | fprintf (file, _("\ | |
2449 | --build-id[=STYLE] Generate build ID note\n")); | |
e0ee487b | 2450 | EOF |
e0ee487b | 2451 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then |
92b93329 | 2452 | fragment <<EOF |
442996ee | 2453 | fprintf (file, _("\ |
fb42df5e | 2454 | -P AUDITLIB, --depaudit=AUDITLIB\n" "\ |
4724d37e | 2455 | Specify a library to use for auditing dependencies\n")); |
442996ee AM |
2456 | fprintf (file, _("\ |
2457 | --disable-new-dtags Disable new dynamic tags\n")); | |
2458 | fprintf (file, _("\ | |
2459 | --enable-new-dtags Enable new dynamic tags\n")); | |
2460 | fprintf (file, _("\ | |
2461 | --eh-frame-hdr Create .eh_frame_hdr section\n")); | |
2462 | fprintf (file, _("\ | |
fb42df5e AM |
2463 | --exclude-libs=LIBS Make all symbols in LIBS hidden\n")); |
2464 | fprintf (file, _("\ | |
442996ee AM |
2465 | --hash-style=STYLE Set hash style to sysv, gnu or both\n")); |
2466 | fprintf (file, _("\ | |
2467 | -z combreloc Merge dynamic relocs into one section and sort\n")); | |
fb42df5e AM |
2468 | EOF |
2469 | fi | |
2470 | ||
2471 | fragment <<EOF | |
2472 | fprintf (file, _("\ | |
2473 | -z common-page-size=SIZE Set common page size to SIZE\n")); | |
442996ee AM |
2474 | fprintf (file, _("\ |
2475 | -z defs Report unresolved symbols in object files.\n")); | |
2476 | fprintf (file, _("\ | |
2477 | -z execstack Mark executable as requiring executable stack\n")); | |
fb42df5e AM |
2478 | EOF |
2479 | ||
2480 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2481 | fragment <<EOF | |
442996ee | 2482 | fprintf (file, _("\ |
b039ef04 | 2483 | -z global Make symbols in DSO available for subsequently\n\ |
4724d37e | 2484 | loaded objects\n")); |
b039ef04 | 2485 | fprintf (file, _("\ |
442996ee AM |
2486 | -z initfirst Mark DSO to be initialized first at runtime\n")); |
2487 | fprintf (file, _("\ | |
2488 | -z interpose Mark object to interpose all DSOs but executable\n")); | |
2489 | fprintf (file, _("\ | |
2490 | -z lazy Mark object lazy runtime binding (default)\n")); | |
2491 | fprintf (file, _("\ | |
2492 | -z loadfltr Mark object requiring immediate process\n")); | |
fb42df5e AM |
2493 | EOF |
2494 | fi | |
2495 | ||
2496 | fragment <<EOF | |
2497 | fprintf (file, _("\ | |
2498 | -z max-page-size=SIZE Set maximum page size to SIZE\n")); | |
442996ee AM |
2499 | fprintf (file, _("\ |
2500 | -z muldefs Allow multiple definitions\n")); | |
fb42df5e AM |
2501 | EOF |
2502 | ||
2503 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2504 | fragment <<EOF | |
442996ee AM |
2505 | fprintf (file, _("\ |
2506 | -z nocombreloc Don't merge dynamic relocs into one section\n")); | |
2507 | fprintf (file, _("\ | |
2508 | -z nocopyreloc Don't create copy relocs\n")); | |
2509 | fprintf (file, _("\ | |
2510 | -z nodefaultlib Mark object not to use default search paths\n")); | |
2511 | fprintf (file, _("\ | |
2512 | -z nodelete Mark DSO non-deletable at runtime\n")); | |
2513 | fprintf (file, _("\ | |
2514 | -z nodlopen Mark DSO not available to dlopen\n")); | |
2515 | fprintf (file, _("\ | |
2516 | -z nodump Mark DSO not available to dldump\n")); | |
fb42df5e AM |
2517 | EOF |
2518 | fi | |
2519 | fragment <<EOF | |
442996ee AM |
2520 | fprintf (file, _("\ |
2521 | -z noexecstack Mark executable as not requiring executable stack\n")); | |
88b882e9 | 2522 | EOF |
fb42df5e | 2523 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then |
92b93329 | 2524 | fragment <<EOF |
442996ee AM |
2525 | fprintf (file, _("\ |
2526 | -z norelro Don't create RELRO program header\n")); | |
442996ee AM |
2527 | fprintf (file, _("\ |
2528 | -z now Mark object non-lazy runtime binding\n")); | |
2529 | fprintf (file, _("\ | |
2530 | -z origin Mark object requiring immediate \$ORIGIN\n\ | |
4724d37e | 2531 | processing at runtime\n")); |
442996ee AM |
2532 | fprintf (file, _("\ |
2533 | -z relro Create RELRO program header\n")); | |
07e15f87 NS |
2534 | fprintf (file, _("\ |
2535 | -z stacksize=SIZE Set size of stack segment\n")); | |
88b882e9 | 2536 | EOF |
e0ee487b L |
2537 | fi |
2538 | ||
2539 | if test -n "$PARSE_AND_LIST_OPTIONS" ; then | |
92b93329 | 2540 | fragment <<EOF |
e0ee487b L |
2541 | $PARSE_AND_LIST_OPTIONS |
2542 | EOF | |
2543 | fi | |
2544 | ||
92b93329 | 2545 | fragment <<EOF |
e0ee487b L |
2546 | } |
2547 | EOF | |
e0ee487b L |
2548 | |
2549 | if test -n "$PARSE_AND_LIST_EPILOGUE" ; then | |
92b93329 | 2550 | fragment <<EOF |
e0ee487b L |
2551 | $PARSE_AND_LIST_EPILOGUE |
2552 | EOF | |
2553 | fi | |
41392f03 | 2554 | fi |
e0ee487b | 2555 | |
92b93329 | 2556 | fragment <<EOF |
252b5132 | 2557 | |
60bcf0fa | 2558 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = |
252b5132 | 2559 | { |
41392f03 AM |
2560 | ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse}, |
2561 | ${LDEMUL_SYSLIB-syslib_default}, | |
2562 | ${LDEMUL_HLL-hll_default}, | |
eeaa4577 | 2563 | ${LDEMUL_AFTER_PARSE-after_parse_default}, |
41392f03 | 2564 | ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open}, |
eaeb0a9d | 2565 | ${LDEMUL_AFTER_ALLOCATION-gld${EMULATION_NAME}_after_allocation}, |
41392f03 AM |
2566 | ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default}, |
2567 | ${LDEMUL_CHOOSE_TARGET-ldemul_default_target}, | |
2568 | ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation}, | |
2569 | ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script}, | |
252b5132 RH |
2570 | "${EMULATION_NAME}", |
2571 | "${OUTPUT_FORMAT}", | |
eaeb0a9d | 2572 | ${LDEMUL_FINISH-finish_default}, |
41392f03 AM |
2573 | ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL}, |
2574 | ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive}, | |
2575 | ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan}, | |
2576 | ${LDEMUL_SET_SYMBOLS-NULL}, | |
3bcf5557 AM |
2577 | ${LDEMUL_PARSE_ARGS-NULL}, |
2578 | gld${EMULATION_NAME}_add_options, | |
2579 | gld${EMULATION_NAME}_handle_option, | |
41392f03 | 2580 | ${LDEMUL_UNRECOGNIZED_FILE-NULL}, |
4b209b22 | 2581 | ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options}, |
4a43e768 | 2582 | ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols}, |
41392f03 | 2583 | ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL}, |
fac1652d | 2584 | ${LDEMUL_NEW_VERS_PATTERN-NULL} |
252b5132 RH |
2585 | }; |
2586 | EOF |