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 ${EMULATION_NAME} | |
2571583a | 15 | Copyright (C) 1991-2017 Free Software Foundation, Inc. |
252b5132 RH |
16 | Written by Steve Chamberlain <sac@cygnus.com> |
17 | ELF support by Ian Lance Taylor <ian@cygnus.com> | |
18 | ||
f96b4a7b NC |
19 | This file is part of the GNU Binutils. |
20 | ||
21 | This program is free software; you can redistribute it and/or modify | |
22 | it under the terms of the GNU General Public License as published by | |
23 | the Free Software Foundation; either version 3 of the License, or | |
24 | (at your option) any later version. | |
25 | ||
26 | This program is distributed in the hope that it will be useful, | |
27 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
28 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
29 | GNU General Public License for more details. | |
30 | ||
31 | You should have received a copy of the GNU General Public License | |
32 | along with this program; if not, write to the Free Software | |
33 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
34 | MA 02110-1301, USA. */ | |
252b5132 RH |
35 | |
36 | #define TARGET_IS_${EMULATION_NAME} | |
37 | ||
252b5132 | 38 | #include "sysdep.h" |
3db64b00 | 39 | #include "bfd.h" |
1c9acd94 | 40 | #include "libiberty.h" |
8056826a | 41 | #include "safe-ctype.h" |
42627821 | 42 | #include "filenames.h" |
fcf65871 | 43 | #include "getopt.h" |
24382dca | 44 | #include <fcntl.h> |
252b5132 RH |
45 | |
46 | #include "bfdlink.h" | |
47 | ||
48 | #include "ld.h" | |
49 | #include "ldmain.h" | |
252b5132 RH |
50 | #include "ldmisc.h" |
51 | #include "ldexp.h" | |
52 | #include "ldlang.h" | |
b71e2778 AM |
53 | #include "ldfile.h" |
54 | #include "ldemul.h" | |
61e2488c | 55 | #include "ldbuildid.h" |
df2a7313 | 56 | #include <ldgram.h> |
e0ee487b | 57 | #include "elf/common.h" |
ecca9871 | 58 | #include "elf-bfd.h" |
07f1e47a | 59 | #include "filenames.h" |
252b5132 | 60 | |
0c7a8e5a AM |
61 | /* Declare functions used by various EXTRA_EM_FILEs. */ |
62 | static void gld${EMULATION_NAME}_before_parse (void); | |
5fe2850d | 63 | static void gld${EMULATION_NAME}_after_parse (void); |
0c7a8e5a AM |
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${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`; |
caa65211 | 106 | `if test -n "$CALL_NOP_BYTE" ; then echo link_info.call_nop_byte = $CALL_NOP_BYTE; fi`; |
d9689752 | 107 | link_info.check_relocs_after_open_input = `if test "x${CHECK_RELOCS_AFTER_OPEN_INPUT}" = xyes ; then echo TRUE ; else echo FALSE ; fi`; |
647e4d46 | 108 | link_info.relro = DEFAULT_LD_Z_RELRO; |
663fa543 L |
109 | } |
110 | ||
822b8bf4 | 111 | EOF |
663fa543 | 112 | fi |
822b8bf4 | 113 | |
5fe2850d L |
114 | if test x"$LDEMUL_AFTER_PARSE" != xgld"$EMULATION_NAME"_after_parse; then |
115 | fragment <<EOF | |
116 | ||
117 | static void | |
118 | gld${EMULATION_NAME}_after_parse (void) | |
119 | { | |
120 | if (bfd_link_pie (&link_info)) | |
121 | link_info.flags_1 |= (bfd_vma) DF_1_PIE; | |
122 | ||
123 | after_parse_default (); | |
124 | } | |
125 | ||
126 | EOF | |
127 | fi | |
128 | ||
4a43e768 | 129 | if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then |
92b93329 | 130 | fragment <<EOF |
ddbb8a31 | 131 | /* Handle the generation of DT_NEEDED tags. */ |
4a43e768 AM |
132 | |
133 | static bfd_boolean | |
134 | gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry) | |
135 | { | |
96d56e9f | 136 | int link_class = 0; |
4a43e768 AM |
137 | |
138 | /* Tell the ELF linker that we don't want the output file to have a | |
139 | DT_NEEDED entry for this file, unless it is used to resolve | |
140 | references in a regular object. */ | |
66be1055 | 141 | if (entry->flags.add_DT_NEEDED_for_regular) |
96d56e9f | 142 | link_class = DYN_AS_NEEDED; |
e56f61be L |
143 | |
144 | /* Tell the ELF linker that we don't want the output file to have a | |
145 | DT_NEEDED entry for any dynamic library in DT_NEEDED tags from | |
146 | this file at all. */ | |
66be1055 | 147 | if (!entry->flags.add_DT_NEEDED_for_dynamic) |
96d56e9f | 148 | link_class |= DYN_NO_ADD_NEEDED; |
e56f61be | 149 | |
66be1055 | 150 | if (entry->flags.just_syms |
12b9ff6c L |
151 | && (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) != 0) |
152 | einfo (_("%P%F: --just-symbols may not be used on DSO: %B\n"), | |
153 | entry->the_bfd); | |
154 | ||
ddbb8a31 | 155 | if (link_class == 0 |
e56f61be L |
156 | || (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0) |
157 | return FALSE; | |
158 | ||
1e9cc1c2 | 159 | bfd_elf_set_dyn_lib_class (entry->the_bfd, |
4724d37e | 160 | (enum dynamic_lib_link_class) link_class); |
4a43e768 AM |
161 | |
162 | /* Continue on with normal load_symbols processing. */ | |
163 | return FALSE; | |
164 | } | |
165 | EOF | |
166 | fi | |
167 | ||
92b93329 | 168 | fragment <<EOF |
252b5132 RH |
169 | |
170 | /* These variables are required to pass information back and forth | |
171 | between after_open and check_needed and stat_needed and vercheck. */ | |
172 | ||
173 | static struct bfd_link_needed_list *global_needed; | |
174 | static struct stat global_stat; | |
e13629bc | 175 | static lang_input_statement_type *global_found; |
252b5132 | 176 | static struct bfd_link_needed_list *global_vercheck_needed; |
b34976b6 | 177 | static bfd_boolean global_vercheck_failed; |
252b5132 | 178 | |
7ee314fa AM |
179 | /* These variables are used to implement target options */ |
180 | ||
181 | static char *audit; /* colon (typically) separated list of libs */ | |
182 | static char *depaudit; /* colon (typically) separated list of libs */ | |
252b5132 | 183 | |
30e8ee25 AM |
184 | /* Style of .note.gnu.build-id section. */ |
185 | static const char *emit_note_gnu_build_id; | |
186 | ||
04925e1e AM |
187 | /* On Linux, it's possible to have different versions of the same |
188 | shared library linked against different versions of libc. The | |
189 | dynamic linker somehow tags which libc version to use in | |
190 | /etc/ld.so.cache, and, based on the libc that it sees in the | |
191 | executable, chooses which version of the shared library to use. | |
252b5132 | 192 | |
04925e1e AM |
193 | We try to do a similar check here by checking whether this shared |
194 | library needs any other shared libraries which may conflict with | |
195 | libraries we have already included in the link. If it does, we | |
196 | skip it, and try to find another shared library farther on down the | |
197 | link path. | |
252b5132 | 198 | |
04925e1e AM |
199 | This is called via lang_for_each_input_file. |
200 | GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object | |
f813923c | 201 | which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find |
04925e1e | 202 | a conflicting version. */ |
252b5132 | 203 | |
04925e1e | 204 | static void |
0c7a8e5a | 205 | gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s) |
04925e1e | 206 | { |
1c9acd94 | 207 | const char *soname; |
04925e1e | 208 | struct bfd_link_needed_list *l; |
252b5132 | 209 | |
04925e1e AM |
210 | if (global_vercheck_failed) |
211 | return; | |
212 | if (s->the_bfd == NULL | |
213 | || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0) | |
214 | return; | |
252b5132 | 215 | |
04925e1e AM |
216 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
217 | if (soname == NULL) | |
fed2999d | 218 | soname = lbasename (bfd_get_filename (s->the_bfd)); |
04925e1e AM |
219 | |
220 | for (l = global_vercheck_needed; l != NULL; l = l->next) | |
221 | { | |
222 | const char *suffix; | |
223 | ||
42627821 | 224 | if (filename_cmp (soname, l->name) == 0) |
04925e1e AM |
225 | { |
226 | /* Probably can't happen, but it's an easy check. */ | |
227 | continue; | |
252b5132 RH |
228 | } |
229 | ||
04925e1e | 230 | if (strchr (l->name, '/') != NULL) |
252b5132 RH |
231 | continue; |
232 | ||
04925e1e AM |
233 | suffix = strstr (l->name, ".so."); |
234 | if (suffix == NULL) | |
235 | continue; | |
236 | ||
237 | suffix += sizeof ".so." - 1; | |
238 | ||
42627821 | 239 | if (filename_ncmp (soname, l->name, suffix - l->name) == 0) |
04925e1e AM |
240 | { |
241 | /* Here we know that S is a dynamic object FOO.SO.VER1, and | |
0c7a8e5a AM |
242 | the object we are considering needs a dynamic object |
243 | FOO.SO.VER2, and VER1 and VER2 are different. This | |
244 | appears to be a version mismatch, so we tell the caller | |
245 | to try a different version of this library. */ | |
b34976b6 | 246 | global_vercheck_failed = TRUE; |
04925e1e AM |
247 | return; |
248 | } | |
252b5132 RH |
249 | } |
250 | } | |
251 | ||
252b5132 | 252 | |
04925e1e AM |
253 | /* See if an input file matches a DT_NEEDED entry by running stat on |
254 | the file. */ | |
255 | ||
256 | static void | |
0c7a8e5a | 257 | gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s) |
252b5132 | 258 | { |
04925e1e AM |
259 | struct stat st; |
260 | const char *suffix; | |
261 | const char *soname; | |
252b5132 | 262 | |
e13629bc | 263 | if (global_found != NULL) |
04925e1e AM |
264 | return; |
265 | if (s->the_bfd == NULL) | |
266 | return; | |
e13629bc AM |
267 | |
268 | /* If this input file was an as-needed entry, and wasn't found to be | |
269 | needed at the stage it was linked, then don't say we have loaded it. */ | |
270 | if ((bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0) | |
7cedef86 | 271 | return; |
04925e1e AM |
272 | |
273 | if (bfd_stat (s->the_bfd, &st) != 0) | |
252b5132 | 274 | { |
04925e1e AM |
275 | einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd); |
276 | return; | |
277 | } | |
252b5132 | 278 | |
9eabd475 ZW |
279 | /* Some operating systems, e.g. Windows, do not provide a meaningful |
280 | st_ino; they always set it to zero. (Windows does provide a | |
281 | meaningful st_dev.) Do not indicate a duplicate library in that | |
282 | case. While there is no guarantee that a system that provides | |
283 | meaningful inode numbers will never set st_ino to zero, this is | |
284 | merely an optimization, so we do not need to worry about false | |
285 | negatives. */ | |
04925e1e | 286 | if (st.st_dev == global_stat.st_dev |
9eabd475 ZW |
287 | && st.st_ino == global_stat.st_ino |
288 | && st.st_ino != 0) | |
04925e1e | 289 | { |
e13629bc | 290 | global_found = s; |
04925e1e AM |
291 | return; |
292 | } | |
252b5132 | 293 | |
04925e1e AM |
294 | /* We issue a warning if it looks like we are including two |
295 | different versions of the same shared library. For example, | |
296 | there may be a problem if -lc picks up libc.so.6 but some other | |
297 | shared library has a DT_NEEDED entry of libc.so.5. This is a | |
f813923c | 298 | heuristic test, and it will only work if the name looks like |
04925e1e AM |
299 | NAME.so.VERSION. FIXME: Depending on file names is error-prone. |
300 | If we really want to issue warnings about mixing version numbers | |
301 | of shared libraries, we need to find a better way. */ | |
252b5132 | 302 | |
04925e1e AM |
303 | if (strchr (global_needed->name, '/') != NULL) |
304 | return; | |
305 | suffix = strstr (global_needed->name, ".so."); | |
306 | if (suffix == NULL) | |
307 | return; | |
308 | suffix += sizeof ".so." - 1; | |
252b5132 | 309 | |
04925e1e AM |
310 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
311 | if (soname == NULL) | |
fed2999d | 312 | soname = lbasename (s->filename); |
252b5132 | 313 | |
42627821 | 314 | if (filename_ncmp (soname, global_needed->name, suffix - global_needed->name) == 0) |
04925e1e | 315 | einfo ("%P: warning: %s, needed by %B, may conflict with %s\n", |
1c9acd94 | 316 | global_needed->name, global_needed->by, soname); |
252b5132 RH |
317 | } |
318 | ||
e56f61be L |
319 | struct dt_needed |
320 | { | |
321 | bfd *by; | |
322 | const char *name; | |
323 | }; | |
04925e1e | 324 | |
252b5132 RH |
325 | /* This function is called for each possible name for a dynamic object |
326 | named by a DT_NEEDED entry. The FORCE parameter indicates whether | |
327 | to skip the check for a conflicting version. */ | |
328 | ||
b34976b6 | 329 | static bfd_boolean |
e56f61be L |
330 | gld${EMULATION_NAME}_try_needed (struct dt_needed *needed, |
331 | int force) | |
252b5132 RH |
332 | { |
333 | bfd *abfd; | |
e56f61be | 334 | const char *name = needed->name; |
ec4eb78a | 335 | const char *soname; |
96d56e9f | 336 | int link_class; |
252b5132 | 337 | |
f13a99db | 338 | abfd = bfd_openr (name, bfd_get_target (link_info.output_bfd)); |
252b5132 | 339 | if (abfd == NULL) |
0ec22c2c NC |
340 | { |
341 | if (verbose) | |
342 | info_msg (_("attempt to open %s failed\n"), name); | |
343 | return FALSE; | |
344 | } | |
4a114e3e L |
345 | |
346 | /* Linker needs to decompress sections. */ | |
347 | abfd->flags |= BFD_DECOMPRESS; | |
348 | ||
252b5132 RH |
349 | if (! bfd_check_format (abfd, bfd_object)) |
350 | { | |
cde43e70 | 351 | bfd_close (abfd); |
b34976b6 | 352 | return FALSE; |
252b5132 RH |
353 | } |
354 | if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0) | |
355 | { | |
cde43e70 | 356 | bfd_close (abfd); |
b34976b6 | 357 | return FALSE; |
252b5132 RH |
358 | } |
359 | ||
c4bb8067 | 360 | /* For DT_NEEDED, they have to match. */ |
f13a99db | 361 | if (abfd->xvec != link_info.output_bfd->xvec) |
c4bb8067 L |
362 | { |
363 | bfd_close (abfd); | |
b34976b6 | 364 | return FALSE; |
c4bb8067 L |
365 | } |
366 | ||
252b5132 RH |
367 | /* Check whether this object would include any conflicting library |
368 | versions. If FORCE is set, then we skip this check; we use this | |
369 | the second time around, if we couldn't find any compatible | |
370 | instance of the shared library. */ | |
371 | ||
372 | if (! force) | |
373 | { | |
91d6fa6a | 374 | struct bfd_link_needed_list *needs; |
252b5132 | 375 | |
91d6fa6a | 376 | if (! bfd_elf_get_bfd_needed_list (abfd, &needs)) |
252b5132 RH |
377 | einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd); |
378 | ||
91d6fa6a | 379 | if (needs != NULL) |
252b5132 | 380 | { |
91d6fa6a | 381 | global_vercheck_needed = needs; |
b34976b6 | 382 | global_vercheck_failed = FALSE; |
252b5132 RH |
383 | lang_for_each_input_file (gld${EMULATION_NAME}_vercheck); |
384 | if (global_vercheck_failed) | |
385 | { | |
cde43e70 | 386 | bfd_close (abfd); |
b34976b6 | 387 | /* Return FALSE to force the caller to move on to try |
0c7a8e5a | 388 | another file on the search path. */ |
b34976b6 | 389 | return FALSE; |
252b5132 RH |
390 | } |
391 | ||
392 | /* But wait! It gets much worse. On Linux, if a shared | |
0c7a8e5a AM |
393 | library does not use libc at all, we are supposed to skip |
394 | it the first time around in case we encounter a shared | |
395 | library later on with the same name which does use the | |
396 | version of libc that we want. This is much too horrible | |
397 | to use on any system other than Linux. */ | |
252b5132 RH |
398 | |
399 | EOF | |
400 | case ${target} in | |
a5244b7e | 401 | *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*) |
92b93329 | 402 | fragment <<EOF |
252b5132 RH |
403 | { |
404 | struct bfd_link_needed_list *l; | |
405 | ||
91d6fa6a | 406 | for (l = needs; l != NULL; l = l->next) |
0112cd26 | 407 | if (CONST_STRNEQ (l->name, "libc.so")) |
252b5132 RH |
408 | break; |
409 | if (l == NULL) | |
410 | { | |
cde43e70 | 411 | bfd_close (abfd); |
b34976b6 | 412 | return FALSE; |
252b5132 RH |
413 | } |
414 | } | |
415 | ||
416 | EOF | |
417 | ;; | |
418 | esac | |
92b93329 | 419 | fragment <<EOF |
252b5132 RH |
420 | } |
421 | } | |
422 | ||
423 | /* We've found a dynamic object matching the DT_NEEDED entry. */ | |
424 | ||
04925e1e AM |
425 | /* We have already checked that there is no other input file of the |
426 | same name. We must now check again that we are not including the | |
427 | same file twice. We need to do this because on many systems | |
428 | libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will | |
429 | reference libc.so.1. If we have already included libc.so, we | |
430 | don't want to include libc.so.1 if they are the same file, and we | |
431 | can only check that using stat. */ | |
432 | ||
433 | if (bfd_stat (abfd, &global_stat) != 0) | |
434 | einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd); | |
ec4eb78a L |
435 | |
436 | /* First strip off everything before the last '/'. */ | |
fed2999d | 437 | soname = lbasename (abfd->filename); |
ec4eb78a | 438 | |
cd6f1cf3 | 439 | if (verbose) |
ec4eb78a L |
440 | info_msg (_("found %s at %s\n"), soname, name); |
441 | ||
e13629bc | 442 | global_found = NULL; |
04925e1e | 443 | lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed); |
e13629bc | 444 | if (global_found != NULL) |
04925e1e | 445 | { |
b34976b6 | 446 | /* Return TRUE to indicate that we found the file, even though |
0c7a8e5a | 447 | we aren't going to do anything with it. */ |
b34976b6 | 448 | return TRUE; |
04925e1e AM |
449 | } |
450 | ||
4a43e768 AM |
451 | /* Specify the soname to use. */ |
452 | bfd_elf_set_dt_needed_name (abfd, soname); | |
04925e1e | 453 | |
4a43e768 AM |
454 | /* Tell the ELF linker that we don't want the output file to have a |
455 | DT_NEEDED entry for this file, unless it is used to resolve | |
456 | references in a regular object. */ | |
96d56e9f | 457 | link_class = DYN_DT_NEEDED; |
e56f61be L |
458 | |
459 | /* Tell the ELF linker that we don't want the output file to have a | |
460 | DT_NEEDED entry for this file at all if the entry is from a file | |
461 | with DYN_NO_ADD_NEEDED. */ | |
7e9f0867 AM |
462 | if (needed->by != NULL |
463 | && (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0) | |
96d56e9f | 464 | link_class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED; |
e56f61be | 465 | |
1e9cc1c2 | 466 | bfd_elf_set_dyn_lib_class (abfd, (enum dynamic_lib_link_class) link_class); |
04925e1e AM |
467 | |
468 | /* Add this file into the symbol table. */ | |
469 | if (! bfd_link_add_symbols (abfd, &link_info)) | |
8ff4c1f3 | 470 | einfo ("%F%B: error adding symbols: %E\n", abfd); |
04925e1e | 471 | |
b34976b6 | 472 | return TRUE; |
04925e1e AM |
473 | } |
474 | ||
04925e1e AM |
475 | /* Search for a needed file in a path. */ |
476 | ||
b34976b6 | 477 | static bfd_boolean |
e56f61be L |
478 | gld${EMULATION_NAME}_search_needed (const char *path, |
479 | struct dt_needed *n, int force) | |
04925e1e AM |
480 | { |
481 | const char *s; | |
e56f61be | 482 | const char *name = n->name; |
04925e1e | 483 | size_t len; |
e56f61be | 484 | struct dt_needed needed; |
04925e1e | 485 | |
cc5ce052 | 486 | if (name[0] == '/') |
e56f61be | 487 | return gld${EMULATION_NAME}_try_needed (n, force); |
cc5ce052 | 488 | |
04925e1e | 489 | if (path == NULL || *path == '\0') |
b34976b6 | 490 | return FALSE; |
e56f61be L |
491 | |
492 | needed.by = n->by; | |
493 | needed.name = n->name; | |
494 | ||
04925e1e AM |
495 | len = strlen (name); |
496 | while (1) | |
497 | { | |
e680a6b6 | 498 | unsigned offset = 0; |
199fa1b7 | 499 | char * var; |
04925e1e AM |
500 | char *filename, *sset; |
501 | ||
c76308d2 | 502 | s = strchr (path, config.rpath_separator); |
04925e1e AM |
503 | if (s == NULL) |
504 | s = path + strlen (path); | |
505 | ||
07f1e47a AM |
506 | #if HAVE_DOS_BASED_FILE_SYSTEM |
507 | /* Assume a match on the second char is part of drive specifier. */ | |
508 | else if (config.rpath_separator == ':' | |
509 | && s == path + 1 | |
510 | && ISALPHA (*path)) | |
511 | { | |
512 | s = strchr (s + 1, config.rpath_separator); | |
513 | if (s == NULL) | |
514 | s = path + strlen (path); | |
515 | } | |
516 | #endif | |
04925e1e AM |
517 | filename = (char *) xmalloc (s - path + len + 2); |
518 | if (s == path) | |
519 | sset = filename; | |
520 | else | |
521 | { | |
522 | memcpy (filename, path, s - path); | |
523 | filename[s - path] = '/'; | |
524 | sset = filename + (s - path) + 1; | |
525 | } | |
526 | strcpy (sset, name); | |
527 | ||
199fa1b7 NC |
528 | /* PR 20535: Support the same pseudo-environment variables that |
529 | are supported by ld.so. Namely, $ORIGIN, $LIB and $PLATFORM. | |
530 | Since there can be more than one occurrence of these tokens in | |
e680a6b6 NC |
531 | the path we loop until no more are found. Since we might not |
532 | be able to substitute some of the tokens we maintain an offset | |
533 | into the filename for where we should begin our scan. */ | |
534 | while ((var = strchr (filename + offset, '$')) != NULL) | |
199fa1b7 NC |
535 | { |
536 | /* The ld.so manual page does not say, but I am going to assume that | |
839b0b3f | 537 | these tokens are terminated by a directory separator character |
199fa1b7 NC |
538 | (/) or the end of the string. There is also an implication that |
539 | $ORIGIN should only be used at the start of a path, but that is | |
540 | not enforced here. | |
541 | ||
e680a6b6 NC |
542 | The ld.so manual page also states that it allows ${ORIGIN}, |
543 | ${LIB} and ${PLATFORM}, so these are supported as well. | |
199fa1b7 NC |
544 | |
545 | FIXME: The code could be a lot cleverer about allocating space | |
546 | for the processed string. */ | |
547 | char * end = strchr (var, '/'); | |
548 | char * replacement = NULL; | |
e680a6b6 | 549 | char * v = var + 1; |
199fa1b7 NC |
550 | char * freeme = NULL; |
551 | unsigned flen = strlen (filename); | |
552 | ||
553 | if (end != NULL) | |
554 | /* Temporarily terminate the filename at the end of the token. */ | |
555 | * end = 0; | |
556 | ||
e680a6b6 NC |
557 | if (*v == '{') |
558 | ++ v; | |
559 | switch (*v++) | |
199fa1b7 NC |
560 | { |
561 | case 'O': | |
e680a6b6 | 562 | if (strcmp (v, "RIGIN") == 0 || strcmp (v, "RIGIN}") == 0) |
199fa1b7 NC |
563 | { |
564 | /* ORIGIN - replace with the full path to the directory | |
565 | containing the program or shared object. */ | |
566 | if (needed.by == NULL) | |
e680a6b6 NC |
567 | { |
568 | if (link_info.output_bfd == NULL) | |
569 | { | |
570 | break; | |
571 | } | |
572 | else | |
573 | replacement = bfd_get_filename (link_info.output_bfd); | |
574 | } | |
575 | else | |
576 | replacement = bfd_get_filename (needed.by); | |
577 | ||
199fa1b7 NC |
578 | if (replacement) |
579 | { | |
580 | char * slash; | |
581 | ||
582 | if (replacement[0] == '/') | |
583 | freeme = xstrdup (replacement); | |
584 | else | |
585 | { | |
586 | char * current_dir = getpwd (); | |
587 | ||
51750acd | 588 | freeme = xmalloc (strlen (replacement) + strlen (current_dir) + 2); |
199fa1b7 NC |
589 | sprintf (freeme, "%s/%s", current_dir, replacement); |
590 | } | |
591 | ||
592 | replacement = freeme; | |
593 | if ((slash = strrchr (replacement, '/')) != NULL) | |
594 | * slash = 0; | |
595 | } | |
596 | } | |
597 | break; | |
598 | ||
599 | case 'L': | |
e680a6b6 | 600 | if (strcmp (v, "IB") == 0 || strcmp (v, "IB}") == 0) |
199fa1b7 NC |
601 | { |
602 | /* LIB - replace with "lib" in 32-bit environments | |
603 | and "lib64" in 64-bit environments. */ | |
604 | ||
605 | /* Note - we could replace this switch statement by | |
606 | conditional fragments of shell script, but that is messy. | |
607 | Any compiler worth its salt is going to optimize away | |
608 | all but one of these case statements anyway. */ | |
609 | switch ($ELFSIZE) | |
610 | { | |
611 | case 32: replacement = "lib"; break; | |
612 | case 64: replacement = "lib64"; break; | |
613 | default: | |
614 | /* $ELFSIZE is not 32 or 64 ... */ | |
615 | abort (); | |
616 | } | |
617 | } | |
618 | break; | |
619 | ||
620 | case 'P': | |
e680a6b6 NC |
621 | /* Supporting $PLATFORM in a cross-hosted environment is not |
622 | possible. Supporting it in a native environment involves | |
623 | loading the <sys/auxv.h> header file which loads the | |
624 | system <elf.h> header file, which conflicts with the | |
625 | "include/elf/mips.h" header file. */ | |
626 | /* Fall through. */ | |
199fa1b7 NC |
627 | default: |
628 | break; | |
629 | } | |
630 | ||
631 | if (replacement) | |
632 | { | |
633 | char * filename2 = xmalloc (flen + strlen (replacement)); | |
634 | ||
635 | if (end) | |
e680a6b6 NC |
636 | { |
637 | sprintf (filename2, "%.*s%s/%s", | |
638 | (int)(var - filename), filename, | |
639 | replacement, end + 1); | |
640 | offset = (var - filename) + 1 + strlen (replacement); | |
641 | } | |
199fa1b7 | 642 | else |
e680a6b6 NC |
643 | { |
644 | sprintf (filename2, "%.*s%s", | |
645 | (int)(var - filename), filename, | |
646 | replacement); | |
647 | offset = var - filename + strlen (replacement); | |
648 | } | |
649 | ||
199fa1b7 NC |
650 | free (filename); |
651 | filename = filename2; | |
652 | /* There is no need to restore the path separator (when | |
653 | end != NULL) as we have replaced the entire string. */ | |
654 | } | |
655 | else | |
656 | { | |
657 | if (verbose) | |
658 | /* We only issue an "unrecognised" message in verbose mode | |
659 | as the $<foo> token might be a legitimate component of | |
660 | a path name in the target's file system. */ | |
88ba72a2 | 661 | info_msg (_("unrecognised or unsupported token '%s' in search path\n"), var); |
199fa1b7 NC |
662 | |
663 | if (end) | |
664 | /* Restore the path separator. */ | |
665 | * end = '/'; | |
e680a6b6 NC |
666 | |
667 | /* PR 20784: Make sure that we resume the scan | |
668 | *after* the token that we could not replace. */ | |
669 | offset = (var + 1) - filename; | |
199fa1b7 NC |
670 | } |
671 | ||
672 | free (freeme); | |
673 | } | |
674 | ||
e56f61be | 675 | needed.name = filename; |
e680a6b6 | 676 | |
e56f61be | 677 | if (gld${EMULATION_NAME}_try_needed (&needed, force)) |
b34976b6 | 678 | return TRUE; |
04925e1e AM |
679 | |
680 | free (filename); | |
681 | ||
682 | if (*s == '\0') | |
683 | break; | |
684 | path = s + 1; | |
685 | } | |
686 | ||
b34976b6 | 687 | return FALSE; |
04925e1e AM |
688 | } |
689 | ||
690 | EOF | |
9c8ebd6a | 691 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
92b93329 | 692 | fragment <<EOF |
9c8ebd6a | 693 | |
c76308d2 RS |
694 | /* Add the sysroot to every entry in a path separated by |
695 | config.rpath_separator. */ | |
9c8ebd6a DJ |
696 | |
697 | static char * | |
0c7a8e5a | 698 | gld${EMULATION_NAME}_add_sysroot (const char *path) |
9c8ebd6a DJ |
699 | { |
700 | int len, colons, i; | |
701 | char *ret, *p; | |
702 | ||
703 | len = strlen (path); | |
704 | colons = 0; | |
705 | i = 0; | |
706 | while (path[i]) | |
c76308d2 | 707 | if (path[i++] == config.rpath_separator) |
9c8ebd6a DJ |
708 | colons++; |
709 | ||
710 | if (path[i]) | |
711 | colons++; | |
712 | ||
42644a89 | 713 | len = len + (colons + 1) * strlen (ld_sysroot); |
9c8ebd6a DJ |
714 | ret = xmalloc (len + 1); |
715 | strcpy (ret, ld_sysroot); | |
716 | p = ret + strlen (ret); | |
717 | i = 0; | |
718 | while (path[i]) | |
c76308d2 | 719 | if (path[i] == config.rpath_separator) |
9c8ebd6a | 720 | { |
0c7a8e5a | 721 | *p++ = path[i++]; |
9c8ebd6a DJ |
722 | strcpy (p, ld_sysroot); |
723 | p = p + strlen (p); | |
9c8ebd6a DJ |
724 | } |
725 | else | |
726 | *p++ = path[i++]; | |
727 | ||
728 | *p = 0; | |
729 | return ret; | |
730 | } | |
04925e1e | 731 | |
3dc16cab DJ |
732 | EOF |
733 | case ${target} in | |
ebe1fac1 | 734 | *-*-freebsd* | *-*-dragonfly*) |
92b93329 | 735 | fragment <<EOF |
ebe1fac1 NC |
736 | /* Read the system search path the FreeBSD way rather than the Linux way. */ |
737 | #ifdef HAVE_ELF_HINTS_H | |
738 | #include <elf-hints.h> | |
739 | #else | |
740 | #include "elf-hints-local.h" | |
741 | #endif | |
742 | ||
743 | static bfd_boolean | |
d5c8b1f8 AM |
744 | gld${EMULATION_NAME}_check_ld_elf_hints (const struct bfd_link_needed_list *l, |
745 | int force) | |
ebe1fac1 NC |
746 | { |
747 | static bfd_boolean initialized; | |
748 | static char *ld_elf_hints; | |
749 | struct dt_needed needed; | |
750 | ||
751 | if (!initialized) | |
752 | { | |
753 | FILE *f; | |
754 | char *tmppath; | |
755 | ||
ff7a0acf | 756 | tmppath = concat (ld_sysroot, _PATH_ELF_HINTS, (const char *) NULL); |
ebe1fac1 NC |
757 | f = fopen (tmppath, FOPEN_RB); |
758 | free (tmppath); | |
759 | if (f != NULL) | |
760 | { | |
761 | struct elfhints_hdr hdr; | |
762 | ||
763 | if (fread (&hdr, 1, sizeof (hdr), f) == sizeof (hdr) | |
764 | && hdr.magic == ELFHINTS_MAGIC | |
765 | && hdr.version == 1) | |
766 | { | |
767 | if (fseek (f, hdr.strtab + hdr.dirlist, SEEK_SET) != -1) | |
768 | { | |
769 | char *b; | |
770 | ||
771 | b = xmalloc (hdr.dirlistlen + 1); | |
772 | if (fread (b, 1, hdr.dirlistlen + 1, f) == | |
773 | hdr.dirlistlen + 1) | |
774 | ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b); | |
e13629bc | 775 | |
ebe1fac1 NC |
776 | free (b); |
777 | } | |
778 | } | |
779 | fclose (f); | |
780 | } | |
781 | ||
782 | initialized = TRUE; | |
783 | } | |
784 | ||
785 | if (ld_elf_hints == NULL) | |
786 | return FALSE; | |
787 | ||
d5c8b1f8 AM |
788 | needed.by = l->by; |
789 | needed.name = l->name; | |
790 | return gld${EMULATION_NAME}_search_needed (ld_elf_hints, &needed, force); | |
ebe1fac1 NC |
791 | } |
792 | EOF | |
793 | # FreeBSD | |
794 | ;; | |
795 | ||
a5244b7e | 796 | *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*) |
92b93329 | 797 | fragment <<EOF |
04925e1e AM |
798 | /* For a native linker, check the file /etc/ld.so.conf for directories |
799 | in which we may find shared libraries. /etc/ld.so.conf is really | |
482e8b32 | 800 | only meaningful on Linux. */ |
04925e1e | 801 | |
d3989512 | 802 | struct gld${EMULATION_NAME}_ld_so_conf |
04925e1e | 803 | { |
d3989512 JJ |
804 | char *path; |
805 | size_t len, alloc; | |
806 | }; | |
04925e1e | 807 | |
dfcffada | 808 | static bfd_boolean |
d3989512 JJ |
809 | gld${EMULATION_NAME}_parse_ld_so_conf |
810 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename); | |
811 | ||
812 | static void | |
813 | gld${EMULATION_NAME}_parse_ld_so_conf_include | |
814 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename, | |
815 | const char *pattern) | |
816 | { | |
817 | char *newp = NULL; | |
0b48acfe | 818 | #ifdef HAVE_GLOB |
d3989512 | 819 | glob_t gl; |
0b48acfe | 820 | #endif |
d3989512 JJ |
821 | |
822 | if (pattern[0] != '/') | |
04925e1e | 823 | { |
d3989512 JJ |
824 | char *p = strrchr (filename, '/'); |
825 | size_t patlen = strlen (pattern) + 1; | |
04925e1e | 826 | |
d3989512 JJ |
827 | newp = xmalloc (p - filename + 1 + patlen); |
828 | memcpy (newp, filename, p - filename + 1); | |
829 | memcpy (newp + (p - filename + 1), pattern, patlen); | |
830 | pattern = newp; | |
831 | } | |
04925e1e | 832 | |
0b48acfe | 833 | #ifdef HAVE_GLOB |
d3989512 JJ |
834 | if (glob (pattern, 0, NULL, &gl) == 0) |
835 | { | |
836 | size_t i; | |
837 | ||
838 | for (i = 0; i < gl.gl_pathc; ++i) | |
839 | gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]); | |
840 | globfree (&gl); | |
841 | } | |
0b48acfe MM |
842 | #else |
843 | /* If we do not have glob, treat the pattern as a literal filename. */ | |
844 | gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern); | |
845 | #endif | |
d3989512 JJ |
846 | |
847 | if (newp) | |
848 | free (newp); | |
849 | } | |
850 | ||
dfcffada | 851 | static bfd_boolean |
d3989512 JJ |
852 | gld${EMULATION_NAME}_parse_ld_so_conf |
853 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename) | |
854 | { | |
855 | FILE *f = fopen (filename, FOPEN_RT); | |
563f4125 JJ |
856 | char *line; |
857 | size_t linelen; | |
d3989512 JJ |
858 | |
859 | if (f == NULL) | |
dfcffada | 860 | return FALSE; |
d3989512 | 861 | |
563f4125 JJ |
862 | linelen = 256; |
863 | line = xmalloc (linelen); | |
864 | do | |
d3989512 | 865 | { |
563f4125 JJ |
866 | char *p = line, *q; |
867 | ||
868 | /* Normally this would use getline(3), but we need to be portable. */ | |
869 | while ((q = fgets (p, linelen - (p - line), f)) != NULL | |
870 | && strlen (q) == linelen - (p - line) - 1 | |
871 | && line[linelen - 2] != '\n') | |
872 | { | |
873 | line = xrealloc (line, 2 * linelen); | |
874 | p = line + linelen - 1; | |
875 | linelen += linelen; | |
876 | } | |
877 | ||
878 | if (q == NULL && p == line) | |
879 | break; | |
d3989512 JJ |
880 | |
881 | p = strchr (line, '\n'); | |
882 | if (p) | |
883 | *p = '\0'; | |
884 | ||
885 | /* Because the file format does not know any form of quoting we | |
886 | can search forward for the next '#' character and if found | |
887 | make it terminating the line. */ | |
888 | p = strchr (line, '#'); | |
889 | if (p) | |
890 | *p = '\0'; | |
891 | ||
892 | /* Remove leading whitespace. NUL is no whitespace character. */ | |
893 | p = line; | |
894 | while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v') | |
895 | ++p; | |
896 | ||
897 | /* If the line is blank it is ignored. */ | |
898 | if (p[0] == '\0') | |
899 | continue; | |
04925e1e | 900 | |
0112cd26 | 901 | if (CONST_STRNEQ (p, "include") && (p[7] == ' ' || p[7] == '\t')) |
d3989512 JJ |
902 | { |
903 | char *dir, c; | |
904 | p += 8; | |
905 | do | |
04925e1e | 906 | { |
d3989512 JJ |
907 | while (*p == ' ' || *p == '\t') |
908 | ++p; | |
04925e1e | 909 | |
d3989512 JJ |
910 | if (*p == '\0') |
911 | break; | |
252b5132 | 912 | |
d3989512 JJ |
913 | dir = p; |
914 | ||
915 | while (*p != ' ' && *p != '\t' && *p) | |
916 | ++p; | |
917 | ||
918 | c = *p; | |
919 | *p++ = '\0'; | |
920 | if (dir[0] != '\0') | |
921 | gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename, | |
922 | dir); | |
923 | } | |
924 | while (c != '\0'); | |
925 | } | |
926 | else | |
927 | { | |
928 | char *dir = p; | |
929 | while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f' | |
930 | && *p != '\r' && *p != '\v') | |
931 | ++p; | |
932 | ||
933 | while (p != dir && p[-1] == '/') | |
934 | --p; | |
935 | if (info->path == NULL) | |
936 | { | |
937 | info->alloc = p - dir + 1 + 256; | |
938 | info->path = xmalloc (info->alloc); | |
939 | info->len = 0; | |
940 | } | |
04925e1e AM |
941 | else |
942 | { | |
d3989512 JJ |
943 | if (info->len + 1 + (p - dir) >= info->alloc) |
944 | { | |
945 | info->alloc += p - dir + 256; | |
946 | info->path = xrealloc (info->path, info->alloc); | |
947 | } | |
c76308d2 | 948 | info->path[info->len++] = config.rpath_separator; |
04925e1e | 949 | } |
d3989512 JJ |
950 | memcpy (info->path + info->len, dir, p - dir); |
951 | info->len += p - dir; | |
952 | info->path[info->len] = '\0'; | |
953 | } | |
954 | } | |
563f4125 | 955 | while (! feof (f)); |
d3989512 JJ |
956 | free (line); |
957 | fclose (f); | |
dfcffada | 958 | return TRUE; |
d3989512 | 959 | } |
252b5132 | 960 | |
d3989512 | 961 | static bfd_boolean |
d5c8b1f8 AM |
962 | gld${EMULATION_NAME}_check_ld_so_conf (const struct bfd_link_needed_list *l, |
963 | int force) | |
d3989512 JJ |
964 | { |
965 | static bfd_boolean initialized; | |
966 | static char *ld_so_conf; | |
967 | struct dt_needed needed; | |
252b5132 | 968 | |
d3989512 JJ |
969 | if (! initialized) |
970 | { | |
971 | char *tmppath; | |
972 | struct gld${EMULATION_NAME}_ld_so_conf info; | |
9c8ebd6a | 973 | |
d3989512 JJ |
974 | info.path = NULL; |
975 | info.len = info.alloc = 0; | |
ff7a0acf AM |
976 | tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf", |
977 | (const char *) NULL); | |
dfcffada AM |
978 | if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath)) |
979 | { | |
980 | free (tmppath); | |
ff7a0acf AM |
981 | tmppath = concat (ld_sysroot, "/etc/ld.so.conf", |
982 | (const char *) NULL); | |
dfcffada AM |
983 | gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath); |
984 | } | |
d3989512 | 985 | free (tmppath); |
dfcffada | 986 | |
d3989512 JJ |
987 | if (info.path) |
988 | { | |
989 | char *d = gld${EMULATION_NAME}_add_sysroot (info.path); | |
990 | free (info.path); | |
991 | ld_so_conf = d; | |
04925e1e | 992 | } |
b34976b6 | 993 | initialized = TRUE; |
04925e1e | 994 | } |
49e56c49 | 995 | |
04925e1e | 996 | if (ld_so_conf == NULL) |
b34976b6 | 997 | return FALSE; |
252b5132 | 998 | |
e56f61be | 999 | |
d5c8b1f8 AM |
1000 | needed.by = l->by; |
1001 | needed.name = l->name; | |
e56f61be | 1002 | return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force); |
252b5132 RH |
1003 | } |
1004 | ||
04925e1e | 1005 | EOF |
9c8ebd6a DJ |
1006 | # Linux |
1007 | ;; | |
04925e1e AM |
1008 | esac |
1009 | fi | |
92b93329 | 1010 | fragment <<EOF |
04925e1e | 1011 | |
252b5132 RH |
1012 | /* See if an input file matches a DT_NEEDED entry by name. */ |
1013 | ||
1014 | static void | |
0c7a8e5a | 1015 | gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s) |
252b5132 | 1016 | { |
e13629bc AM |
1017 | const char *soname; |
1018 | ||
1019 | /* Stop looking if we've found a loaded lib. */ | |
1020 | if (global_found != NULL | |
1021 | && (bfd_elf_get_dyn_lib_class (global_found->the_bfd) | |
1022 | & DYN_AS_NEEDED) == 0) | |
252b5132 RH |
1023 | return; |
1024 | ||
e13629bc AM |
1025 | if (s->filename == NULL || s->the_bfd == NULL) |
1026 | return; | |
1027 | ||
1028 | /* Don't look for a second non-loaded as-needed lib. */ | |
1029 | if (global_found != NULL | |
1030 | && (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0) | |
7cedef86 AM |
1031 | return; |
1032 | ||
42627821 | 1033 | if (filename_cmp (s->filename, global_needed->name) == 0) |
252b5132 | 1034 | { |
e13629bc AM |
1035 | global_found = s; |
1036 | return; | |
1037 | } | |
577a0623 | 1038 | |
66be1055 | 1039 | if (s->flags.search_dirs) |
e13629bc AM |
1040 | { |
1041 | const char *f = strrchr (s->filename, '/'); | |
1042 | if (f != NULL | |
42627821 | 1043 | && filename_cmp (f + 1, global_needed->name) == 0) |
577a0623 | 1044 | { |
e13629bc | 1045 | global_found = s; |
577a0623 AM |
1046 | return; |
1047 | } | |
252b5132 RH |
1048 | } |
1049 | ||
e13629bc AM |
1050 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
1051 | if (soname != NULL | |
42627821 | 1052 | && filename_cmp (soname, global_needed->name) == 0) |
252b5132 | 1053 | { |
e13629bc AM |
1054 | global_found = s; |
1055 | return; | |
252b5132 | 1056 | } |
252b5132 RH |
1057 | } |
1058 | ||
41392f03 AM |
1059 | EOF |
1060 | ||
1061 | if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then | |
92b93329 | 1062 | fragment <<EOF |
04925e1e | 1063 | |
24382dca | 1064 | static bfd_size_type |
677e5a92 | 1065 | id_note_section_size (bfd *abfd ATTRIBUTE_UNUSED) |
24382dca | 1066 | { |
30e8ee25 | 1067 | const char *style = emit_note_gnu_build_id; |
24382dca | 1068 | bfd_size_type size; |
61e2488c | 1069 | bfd_size_type build_id_size; |
24382dca | 1070 | |
24382dca RM |
1071 | size = offsetof (Elf_External_Note, name[sizeof "GNU"]); |
1072 | size = (size + 3) & -(bfd_size_type) 4; | |
1073 | ||
61e2488c JT |
1074 | build_id_size = compute_build_id_size (style); |
1075 | if (build_id_size) | |
1076 | size += build_id_size; | |
24382dca RM |
1077 | else |
1078 | size = 0; | |
1079 | ||
1080 | return size; | |
1081 | } | |
1082 | ||
24382dca | 1083 | static bfd_boolean |
30e8ee25 | 1084 | write_build_id (bfd *abfd) |
24382dca RM |
1085 | { |
1086 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
30e8ee25 AM |
1087 | struct elf_obj_tdata *t = elf_tdata (abfd); |
1088 | const char *style; | |
24382dca RM |
1089 | asection *asec; |
1090 | Elf_Internal_Shdr *i_shdr; | |
1091 | unsigned char *contents, *id_bits; | |
1092 | bfd_size_type size; | |
30e8ee25 | 1093 | file_ptr position; |
24382dca RM |
1094 | Elf_External_Note *e_note; |
1095 | ||
c0355132 AM |
1096 | style = t->o->build_id.style; |
1097 | asec = t->o->build_id.sec; | |
83e4970b | 1098 | if (bfd_is_abs_section (asec->output_section)) |
24382dca | 1099 | { |
83e4970b AM |
1100 | einfo (_("%P: warning: .note.gnu.build-id section discarded," |
1101 | " --build-id ignored.\n")); | |
1102 | return TRUE; | |
24382dca RM |
1103 | } |
1104 | i_shdr = &elf_section_data (asec->output_section)->this_hdr; | |
1105 | ||
1106 | if (i_shdr->contents == NULL) | |
1107 | { | |
b2ff8454 | 1108 | if (asec->contents == NULL) |
1e9cc1c2 | 1109 | asec->contents = (unsigned char *) xmalloc (asec->size); |
b2ff8454 | 1110 | contents = asec->contents; |
24382dca | 1111 | } |
b2ff8454 RM |
1112 | else |
1113 | contents = i_shdr->contents + asec->output_offset; | |
24382dca | 1114 | |
1e9cc1c2 | 1115 | e_note = (Elf_External_Note *) contents; |
24382dca RM |
1116 | size = offsetof (Elf_External_Note, name[sizeof "GNU"]); |
1117 | size = (size + 3) & -(bfd_size_type) 4; | |
1118 | id_bits = contents + size; | |
1119 | size = asec->size - size; | |
1120 | ||
1121 | bfd_h_put_32 (abfd, sizeof "GNU", &e_note->namesz); | |
1122 | bfd_h_put_32 (abfd, size, &e_note->descsz); | |
1123 | bfd_h_put_32 (abfd, NT_GNU_BUILD_ID, &e_note->type); | |
1124 | memcpy (e_note->name, "GNU", sizeof "GNU"); | |
1125 | ||
61e2488c | 1126 | generate_build_id (abfd, style, bed->s->checksum_contents, id_bits, size); |
24382dca | 1127 | |
30e8ee25 | 1128 | position = i_shdr->sh_offset + asec->output_offset; |
b2ff8454 | 1129 | size = asec->size; |
30e8ee25 | 1130 | return (bfd_seek (abfd, position, SEEK_SET) == 0 |
b2ff8454 | 1131 | && bfd_bwrite (contents, size, abfd) == size); |
24382dca RM |
1132 | } |
1133 | ||
30e8ee25 AM |
1134 | /* Make .note.gnu.build-id section, and set up elf_tdata->build_id. */ |
1135 | ||
1136 | static bfd_boolean | |
1137 | setup_build_id (bfd *ibfd) | |
1138 | { | |
1139 | asection *s; | |
1140 | bfd_size_type size; | |
1141 | flagword flags; | |
1142 | ||
1143 | size = id_note_section_size (ibfd); | |
1144 | if (size == 0) | |
1145 | { | |
1146 | einfo ("%P: warning: unrecognized --build-id style ignored.\n"); | |
1147 | return FALSE; | |
1148 | } | |
1149 | ||
1150 | flags = (SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY | |
1151 | | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA); | |
1152 | s = bfd_make_section_with_flags (ibfd, ".note.gnu.build-id", flags); | |
1153 | if (s != NULL && bfd_set_section_alignment (ibfd, s, 2)) | |
1154 | { | |
1155 | struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd); | |
c0355132 AM |
1156 | t->o->build_id.after_write_object_contents = &write_build_id; |
1157 | t->o->build_id.style = emit_note_gnu_build_id; | |
1158 | t->o->build_id.sec = s; | |
1159 | elf_section_type (s) = SHT_NOTE; | |
1160 | s->size = size; | |
1161 | return TRUE; | |
30e8ee25 AM |
1162 | } |
1163 | ||
1164 | einfo ("%P: warning: Cannot create .note.gnu.build-id section," | |
1165 | " --build-id ignored.\n"); | |
1166 | return FALSE; | |
1167 | } | |
24382dca | 1168 | |
04925e1e | 1169 | /* This is called after all the input files have been opened. */ |
252b5132 RH |
1170 | |
1171 | static void | |
0c7a8e5a | 1172 | gld${EMULATION_NAME}_after_open (void) |
252b5132 | 1173 | { |
04925e1e | 1174 | struct bfd_link_needed_list *needed, *l; |
d10e7fcc AM |
1175 | struct elf_link_hash_table *htab; |
1176 | ||
5c3049d2 AM |
1177 | after_open_default (); |
1178 | ||
d10e7fcc AM |
1179 | htab = elf_hash_table (&link_info); |
1180 | if (!is_elf_hash_table (htab)) | |
1181 | return; | |
252b5132 | 1182 | |
76359541 TP |
1183 | if (command_line.out_implib_filename) |
1184 | { | |
1185 | unlink_if_ordinary (command_line.out_implib_filename); | |
1186 | link_info.out_implib_bfd | |
1187 | = bfd_openw (command_line.out_implib_filename, | |
1188 | bfd_get_target (link_info.output_bfd)); | |
1189 | ||
1190 | if (link_info.out_implib_bfd == NULL) | |
1191 | { | |
1192 | einfo ("%F%s: Can't open for writing: %E\n", | |
1193 | command_line.out_implib_filename); | |
1194 | } | |
1195 | } | |
1196 | ||
30e8ee25 | 1197 | if (emit_note_gnu_build_id != NULL) |
c0065db7 RM |
1198 | { |
1199 | bfd *abfd; | |
c0065db7 | 1200 | |
a654efd6 L |
1201 | /* Find an ELF input. */ |
1202 | for (abfd = link_info.input_bfds; | |
c72f2fb2 | 1203 | abfd != (bfd *) NULL; abfd = abfd->link.next) |
ca0694ad AM |
1204 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour |
1205 | && bfd_count_sections (abfd) != 0) | |
a654efd6 | 1206 | break; |
c0065db7 | 1207 | |
30e8ee25 AM |
1208 | /* PR 10555: If there are no ELF input files do not try to |
1209 | create a .note.gnu-build-id section. */ | |
1210 | if (abfd == NULL | |
1211 | || !setup_build_id (abfd)) | |
c0065db7 | 1212 | { |
30e8ee25 AM |
1213 | free ((char *) emit_note_gnu_build_id); |
1214 | emit_note_gnu_build_id = NULL; | |
c0065db7 RM |
1215 | } |
1216 | } | |
1217 | ||
0e1862bb | 1218 | if (bfd_link_relocatable (&link_info)) |
76f0cad6 NC |
1219 | { |
1220 | if (link_info.execstack == ! link_info.noexecstack) | |
1221 | /* PR ld/16744: If "-z [no]execstack" has been specified on the | |
1222 | command line and we are perfoming a relocatable link then no | |
1223 | PT_GNU_STACK segment will be created and so the | |
1224 | linkinfo.[no]execstack values set in _handle_option() will have no | |
1225 | effect. Instead we create a .note.GNU-stack section in much the | |
1226 | same way as the assembler does with its --[no]execstack option. */ | |
1227 | (void) bfd_make_section_with_flags (link_info.input_bfds, | |
1228 | ".note.GNU-stack", | |
1229 | SEC_READONLY | (link_info.execstack ? SEC_CODE : 0)); | |
1230 | ||
1231 | return; | |
1232 | } | |
d10e7fcc | 1233 | |
2f0c68f2 | 1234 | if (!link_info.traditional_format) |
eb3d5f3b | 1235 | { |
a654efd6 L |
1236 | bfd *abfd, *elfbfd = NULL; |
1237 | bfd_boolean warn_eh_frame = FALSE; | |
d10e7fcc | 1238 | asection *s; |
2f0c68f2 | 1239 | int seen_type = 0; |
eb3d5f3b | 1240 | |
c72f2fb2 | 1241 | for (abfd = link_info.input_bfds; abfd; abfd = abfd->link.next) |
eb3d5f3b | 1242 | { |
2f0c68f2 CM |
1243 | int type = 0; |
1244 | for (s = abfd->sections; s && type < COMPACT_EH_HDR; s = s->next) | |
4440bb77 | 1245 | { |
2f0c68f2 CM |
1246 | const char *name = bfd_get_section_name (abfd, s); |
1247 | ||
1248 | if (bfd_is_abs_section (s->output_section)) | |
1249 | continue; | |
1250 | if (CONST_STRNEQ (name, ".eh_frame_entry")) | |
1251 | type = COMPACT_EH_HDR; | |
1252 | else if (strcmp (name, ".eh_frame") == 0 && s->size > 8) | |
1253 | type = DWARF2_EH_HDR; | |
4440bb77 | 1254 | } |
2f0c68f2 CM |
1255 | |
1256 | if (type != 0) | |
1257 | { | |
1258 | if (seen_type == 0) | |
1259 | { | |
1260 | seen_type = type; | |
1261 | } | |
1262 | else if (seen_type != type) | |
1263 | { | |
1264 | einfo (_("%P%F: compact frame descriptions incompatible with" | |
1265 | " DWARF2 .eh_frame from %B\n"), | |
1266 | type == DWARF2_EH_HDR ? abfd : elfbfd); | |
1267 | break; | |
1268 | } | |
1269 | ||
1270 | if (!elfbfd | |
1271 | && (type == COMPACT_EH_HDR || link_info.eh_frame_hdr_type != 0)) | |
1272 | { | |
1273 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
1274 | elfbfd = abfd; | |
1275 | ||
1276 | warn_eh_frame = TRUE; | |
1277 | } | |
1278 | } | |
1279 | ||
1280 | if (seen_type == COMPACT_EH_HDR) | |
1281 | link_info.eh_frame_hdr_type = COMPACT_EH_HDR; | |
1282 | ||
1283 | if (bfd_count_sections (abfd) == 0) | |
1284 | continue; | |
d10e7fcc | 1285 | } |
a654efd6 | 1286 | if (elfbfd) |
d10e7fcc AM |
1287 | { |
1288 | const struct elf_backend_data *bed; | |
1289 | ||
a654efd6 L |
1290 | bed = get_elf_backend_data (elfbfd); |
1291 | s = bfd_make_section_with_flags (elfbfd, ".eh_frame_hdr", | |
1292 | bed->dynamic_sec_flags | |
1293 | | SEC_READONLY); | |
d10e7fcc | 1294 | if (s != NULL |
a654efd6 L |
1295 | && bfd_set_section_alignment (elfbfd, s, 2)) |
1296 | { | |
1297 | htab->eh_info.hdr_sec = s; | |
1298 | warn_eh_frame = FALSE; | |
1299 | } | |
eb3d5f3b | 1300 | } |
a654efd6 L |
1301 | if (warn_eh_frame) |
1302 | einfo ("%P: warning: Cannot create .eh_frame_hdr section," | |
1303 | " --eh-frame-hdr ignored.\n"); | |
eb3d5f3b JB |
1304 | } |
1305 | ||
04925e1e AM |
1306 | /* Get the list of files which appear in DT_NEEDED entries in |
1307 | dynamic objects included in the link (often there will be none). | |
1308 | For each such file, we want to track down the corresponding | |
1309 | library, and include the symbol table in the link. This is what | |
1310 | the runtime dynamic linker will do. Tracking the files down here | |
1311 | permits one dynamic object to include another without requiring | |
1312 | special action by the person doing the link. Note that the | |
1313 | needed list can actually grow while we are stepping through this | |
1314 | loop. */ | |
f13a99db | 1315 | needed = bfd_elf_get_needed_list (link_info.output_bfd, &link_info); |
04925e1e | 1316 | for (l = needed; l != NULL; l = l->next) |
252b5132 | 1317 | { |
04925e1e | 1318 | struct bfd_link_needed_list *ll; |
e56f61be | 1319 | struct dt_needed n, nn; |
04925e1e | 1320 | int force; |
252b5132 | 1321 | |
7e9f0867 | 1322 | /* If the lib that needs this one was --as-needed and wasn't |
4706eab9 | 1323 | found to be needed, then this lib isn't needed either. */ |
7e9f0867 | 1324 | if (l->by != NULL |
4706eab9 AM |
1325 | && (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0) |
1326 | continue; | |
1327 | ||
1328 | /* Skip the lib if --no-copy-dt-needed-entries and | |
1329 | --allow-shlib-undefined is in effect. */ | |
1330 | if (l->by != NULL | |
1331 | && link_info.unresolved_syms_in_shared_libs == RM_IGNORE | |
1332 | && (bfd_elf_get_dyn_lib_class (l->by) & DYN_NO_ADD_NEEDED) != 0) | |
7e9f0867 AM |
1333 | continue; |
1334 | ||
04925e1e AM |
1335 | /* If we've already seen this file, skip it. */ |
1336 | for (ll = needed; ll != l; ll = ll->next) | |
7e9f0867 AM |
1337 | if ((ll->by == NULL |
1338 | || (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0) | |
1339 | && strcmp (ll->name, l->name) == 0) | |
04925e1e AM |
1340 | break; |
1341 | if (ll != l) | |
1342 | continue; | |
252b5132 | 1343 | |
04925e1e AM |
1344 | /* See if this file was included in the link explicitly. */ |
1345 | global_needed = l; | |
e13629bc | 1346 | global_found = NULL; |
04925e1e | 1347 | lang_for_each_input_file (gld${EMULATION_NAME}_check_needed); |
e13629bc AM |
1348 | if (global_found != NULL |
1349 | && (bfd_elf_get_dyn_lib_class (global_found->the_bfd) | |
1350 | & DYN_AS_NEEDED) == 0) | |
04925e1e | 1351 | continue; |
252b5132 | 1352 | |
e56f61be L |
1353 | n.by = l->by; |
1354 | n.name = l->name; | |
1355 | nn.by = l->by; | |
cd6f1cf3 | 1356 | if (verbose) |
ec4eb78a L |
1357 | info_msg (_("%s needed by %B\n"), l->name, l->by); |
1358 | ||
e13629bc AM |
1359 | /* As-needed libs specified on the command line (or linker script) |
1360 | take priority over libs found in search dirs. */ | |
1361 | if (global_found != NULL) | |
1362 | { | |
1363 | nn.name = global_found->filename; | |
1364 | if (gld${EMULATION_NAME}_try_needed (&nn, TRUE)) | |
1365 | continue; | |
1366 | } | |
1367 | ||
04925e1e AM |
1368 | /* We need to find this file and include the symbol table. We |
1369 | want to search for the file in the same way that the dynamic | |
1370 | linker will search. That means that we want to use | |
1371 | rpath_link, rpath, then the environment variable | |
ec4eb78a L |
1372 | LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH |
1373 | entries (native only), then the linker script LIB_SEARCH_DIRS. | |
1374 | We do not search using the -L arguments. | |
252b5132 | 1375 | |
04925e1e AM |
1376 | We search twice. The first time, we skip objects which may |
1377 | introduce version mismatches. The second time, we force | |
1378 | their use. See gld${EMULATION_NAME}_vercheck comment. */ | |
1379 | for (force = 0; force < 2; force++) | |
1380 | { | |
04925e1e AM |
1381 | size_t len; |
1382 | search_dirs_type *search; | |
6dd8c765 | 1383 | EOF |
ff925e69 | 1384 | if [ "x${NATIVE}" = xyes ] ; then |
92b93329 | 1385 | fragment <<EOF |
dcb0bd0e | 1386 | const char *lib_path; |
ff925e69 KK |
1387 | EOF |
1388 | fi | |
1389 | if [ "x${USE_LIBPATH}" = xyes ] ; then | |
92b93329 | 1390 | fragment <<EOF |
6dd8c765 L |
1391 | struct bfd_link_needed_list *rp; |
1392 | int found; | |
1393 | EOF | |
6dd8c765 | 1394 | fi |
92b93329 | 1395 | fragment <<EOF |
252b5132 | 1396 | |
04925e1e | 1397 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link, |
e56f61be | 1398 | &n, force)) |
04925e1e | 1399 | break; |
dcb0bd0e | 1400 | EOF |
9c8ebd6a | 1401 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
92b93329 | 1402 | fragment <<EOF |
04925e1e | 1403 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath, |
e56f61be | 1404 | &n, force)) |
04925e1e | 1405 | break; |
9c8ebd6a DJ |
1406 | EOF |
1407 | fi | |
1408 | if [ "x${NATIVE}" = xyes ] ; then | |
92b93329 | 1409 | fragment <<EOF |
04925e1e AM |
1410 | if (command_line.rpath_link == NULL |
1411 | && command_line.rpath == NULL) | |
1412 | { | |
1413 | lib_path = (const char *) getenv ("LD_RUN_PATH"); | |
e56f61be | 1414 | if (gld${EMULATION_NAME}_search_needed (lib_path, &n, |
04925e1e AM |
1415 | force)) |
1416 | break; | |
1417 | } | |
04925e1e | 1418 | lib_path = (const char *) getenv ("LD_LIBRARY_PATH"); |
e56f61be | 1419 | if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force)) |
04925e1e | 1420 | break; |
9c8ebd6a DJ |
1421 | EOF |
1422 | fi | |
1423 | if [ "x${USE_LIBPATH}" = xyes ] ; then | |
92b93329 | 1424 | fragment <<EOF |
ec4eb78a | 1425 | found = 0; |
f13a99db | 1426 | rp = bfd_elf_get_runpath_list (link_info.output_bfd, &link_info); |
6dd8c765 | 1427 | for (; !found && rp != NULL; rp = rp->next) |
ec4eb78a | 1428 | { |
3074964f AM |
1429 | const char *tmpname = rp->name; |
1430 | ||
1431 | if (IS_ABSOLUTE_PATH (tmpname)) | |
1432 | tmpname = gld${EMULATION_NAME}_add_sysroot (tmpname); | |
ec4eb78a | 1433 | found = (rp->by == l->by |
9c8ebd6a | 1434 | && gld${EMULATION_NAME}_search_needed (tmpname, |
e56f61be | 1435 | &n, |
ec4eb78a | 1436 | force)); |
3074964f AM |
1437 | if (tmpname != rp->name) |
1438 | free ((char *) tmpname); | |
ec4eb78a L |
1439 | } |
1440 | if (found) | |
1441 | break; | |
1442 | ||
04925e1e | 1443 | EOF |
04925e1e | 1444 | fi |
c1446dba L |
1445 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
1446 | case ${target} in | |
ebe1fac1 | 1447 | *-*-freebsd* | *-*-dragonfly*) |
92b93329 | 1448 | fragment <<EOF |
d5c8b1f8 | 1449 | if (gld${EMULATION_NAME}_check_ld_elf_hints (l, force)) |
ebe1fac1 NC |
1450 | break; |
1451 | EOF | |
1452 | # FreeBSD | |
1453 | ;; | |
1454 | ||
a5244b7e | 1455 | *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*) |
92b93329 | 1456 | fragment <<EOF |
d5c8b1f8 | 1457 | if (gld${EMULATION_NAME}_check_ld_so_conf (l, force)) |
c1446dba L |
1458 | break; |
1459 | ||
1460 | EOF | |
eeaa4577 | 1461 | # Linux |
c1446dba L |
1462 | ;; |
1463 | esac | |
1464 | fi | |
92b93329 | 1465 | fragment <<EOF |
04925e1e AM |
1466 | len = strlen (l->name); |
1467 | for (search = search_head; search != NULL; search = search->next) | |
1468 | { | |
1469 | char *filename; | |
252b5132 | 1470 | |
04925e1e AM |
1471 | if (search->cmdline) |
1472 | continue; | |
1473 | filename = (char *) xmalloc (strlen (search->name) + len + 2); | |
1474 | sprintf (filename, "%s/%s", search->name, l->name); | |
e56f61be L |
1475 | nn.name = filename; |
1476 | if (gld${EMULATION_NAME}_try_needed (&nn, force)) | |
04925e1e AM |
1477 | break; |
1478 | free (filename); | |
1479 | } | |
1480 | if (search != NULL) | |
1481 | break; | |
1482 | EOF | |
92b93329 | 1483 | fragment <<EOF |
04925e1e | 1484 | } |
252b5132 | 1485 | |
04925e1e AM |
1486 | if (force < 2) |
1487 | continue; | |
252b5132 | 1488 | |
e374f1d9 | 1489 | einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n", |
04925e1e AM |
1490 | l->name, l->by); |
1491 | } | |
2f0c68f2 CM |
1492 | |
1493 | if (link_info.eh_frame_hdr_type == COMPACT_EH_HDR) | |
1494 | if (bfd_elf_parse_eh_frame_entries (NULL, &link_info) == FALSE) | |
1495 | einfo (_("%P%F: Failed to parse EH frame entries.\n")); | |
04925e1e | 1496 | } |
252b5132 | 1497 | |
41392f03 AM |
1498 | EOF |
1499 | fi | |
1500 | ||
92b93329 | 1501 | fragment <<EOF |
252b5132 | 1502 | |
04925e1e | 1503 | /* Look through an expression for an assignment statement. */ |
252b5132 | 1504 | |
04925e1e | 1505 | static void |
0c7a8e5a | 1506 | gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp) |
04925e1e | 1507 | { |
4ea42fb7 | 1508 | bfd_boolean provide = FALSE; |
04925e1e AM |
1509 | |
1510 | switch (exp->type.node_class) | |
252b5132 | 1511 | { |
04925e1e | 1512 | case etree_provide: |
bded3693 | 1513 | case etree_provided: |
4ea42fb7 | 1514 | provide = TRUE; |
839b0b3f | 1515 | /* Fallthru */ |
4ea42fb7 | 1516 | case etree_assign: |
04925e1e AM |
1517 | /* We call record_link_assignment even if the symbol is defined. |
1518 | This is because if it is defined by a dynamic object, we | |
1519 | actually want to use the value defined by the linker script, | |
1520 | not the value from the dynamic object (because we are setting | |
1521 | symbols like etext). If the symbol is defined by a regular | |
1522 | object, then, as it happens, calling record_link_assignment | |
1523 | will do no harm. */ | |
04925e1e | 1524 | if (strcmp (exp->assign.dst, ".") != 0) |
252b5132 | 1525 | { |
f13a99db AM |
1526 | if (!bfd_elf_record_link_assignment (link_info.output_bfd, |
1527 | &link_info, | |
fe21a8fc L |
1528 | exp->assign.dst, provide, |
1529 | exp->assign.hidden)) | |
04925e1e AM |
1530 | einfo ("%P%F: failed to record assignment to %s: %E\n", |
1531 | exp->assign.dst); | |
252b5132 | 1532 | } |
04925e1e AM |
1533 | gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); |
1534 | break; | |
252b5132 | 1535 | |
04925e1e AM |
1536 | case etree_binary: |
1537 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); | |
1538 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); | |
1539 | break; | |
252b5132 | 1540 | |
04925e1e AM |
1541 | case etree_trinary: |
1542 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond); | |
1543 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); | |
1544 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); | |
1545 | break; | |
252b5132 | 1546 | |
04925e1e AM |
1547 | case etree_unary: |
1548 | gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); | |
1549 | break; | |
252b5132 | 1550 | |
04925e1e AM |
1551 | default: |
1552 | break; | |
252b5132 RH |
1553 | } |
1554 | } | |
1555 | ||
04925e1e AM |
1556 | |
1557 | /* This is called by the before_allocation routine via | |
1558 | lang_for_each_statement. It locates any assignment statements, and | |
1559 | tells the ELF backend about them, in case they are assignments to | |
1560 | symbols which are referred to by dynamic objects. */ | |
1561 | ||
1562 | static void | |
0c7a8e5a | 1563 | gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s) |
04925e1e AM |
1564 | { |
1565 | if (s->header.type == lang_assignment_statement_enum) | |
1566 | gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); | |
1567 | } | |
1568 | ||
41392f03 AM |
1569 | EOF |
1570 | ||
1571 | if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then | |
57e6abd2 AO |
1572 | if test x"${ELF_INTERPRETER_NAME+set}" = xset; then |
1573 | ELF_INTERPRETER_SET_DEFAULT=" | |
1574 | if (sinterp != NULL) | |
1575 | { | |
5718918d AM |
1576 | sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME}; |
1577 | sinterp->size = strlen ((char *) sinterp->contents) + 1; | |
57e6abd2 AO |
1578 | } |
1579 | ||
1580 | " | |
1581 | else | |
1582 | ELF_INTERPRETER_SET_DEFAULT= | |
1583 | fi | |
92b93329 | 1584 | fragment <<EOF |
04925e1e | 1585 | |
7ee314fa | 1586 | /* used by before_allocation and handle_option. */ |
4724d37e | 1587 | static void |
91d6fa6a | 1588 | gld${EMULATION_NAME}_append_to_separated_string (char **to, char *op_arg) |
7ee314fa AM |
1589 | { |
1590 | if (*to == NULL) | |
91d6fa6a | 1591 | *to = xstrdup (op_arg); |
7ee314fa AM |
1592 | else |
1593 | { | |
1594 | size_t to_len = strlen (*to); | |
91d6fa6a | 1595 | size_t op_arg_len = strlen (op_arg); |
7ee314fa AM |
1596 | char *buf; |
1597 | char *cp = *to; | |
1598 | ||
1599 | /* First see whether OPTARG is already in the path. */ | |
1600 | do | |
1601 | { | |
91d6fa6a NC |
1602 | if (strncmp (op_arg, cp, op_arg_len) == 0 |
1603 | && (cp[op_arg_len] == 0 | |
1604 | || cp[op_arg_len] == config.rpath_separator)) | |
7ee314fa AM |
1605 | /* We found it. */ |
1606 | break; | |
1607 | ||
1608 | /* Not yet found. */ | |
1609 | cp = strchr (cp, config.rpath_separator); | |
1610 | if (cp != NULL) | |
1611 | ++cp; | |
1612 | } | |
1613 | while (cp != NULL); | |
1614 | ||
1615 | if (cp == NULL) | |
1616 | { | |
91d6fa6a | 1617 | buf = xmalloc (to_len + op_arg_len + 2); |
7ee314fa | 1618 | sprintf (buf, "%s%c%s", *to, |
91d6fa6a | 1619 | config.rpath_separator, op_arg); |
7ee314fa AM |
1620 | free (*to); |
1621 | *to = buf; | |
1622 | } | |
1623 | } | |
1624 | } | |
1625 | ||
b6518b38 NC |
1626 | #if defined(__GNUC__) && GCC_VERSION < 4006 |
1627 | /* Work around a GCC uninitialized warning bug fixed in GCC 4.6. */ | |
1628 | static struct bfd_link_hash_entry ehdr_start_empty; | |
1629 | #endif | |
1630 | ||
252b5132 RH |
1631 | /* This is called after the sections have been attached to output |
1632 | sections, but before any sizes or addresses have been set. */ | |
1633 | ||
1634 | static void | |
0c7a8e5a | 1635 | gld${EMULATION_NAME}_before_allocation (void) |
252b5132 RH |
1636 | { |
1637 | const char *rpath; | |
1638 | asection *sinterp; | |
7ee314fa | 1639 | bfd *abfd; |
4199e3b8 | 1640 | struct elf_link_hash_entry *ehdr_start = NULL; |
a0bde398 L |
1641 | #if defined(__GNUC__) && GCC_VERSION < 4006 |
1642 | /* Work around a GCC uninitialized warning bug fixed in GCC 4.6. */ | |
b6518b38 | 1643 | struct bfd_link_hash_entry ehdr_start_save = ehdr_start_empty; |
a0bde398 | 1644 | #else |
4a0bc59e | 1645 | struct bfd_link_hash_entry ehdr_start_save; |
a0bde398 | 1646 | #endif |
252b5132 | 1647 | |
b4d040b1 | 1648 | if (is_elf_hash_table (link_info.hash)) |
a5382c42 MR |
1649 | { |
1650 | _bfd_elf_tls_setup (link_info.output_bfd, &link_info); | |
e1918d23 | 1651 | |
cde7cb01 MR |
1652 | /* Make __ehdr_start hidden if it has been referenced, to |
1653 | prevent the symbol from being dynamic. */ | |
0e1862bb | 1654 | if (!bfd_link_relocatable (&link_info)) |
c2763e27 RM |
1655 | { |
1656 | struct elf_link_hash_entry *h | |
1657 | = elf_link_hash_lookup (elf_hash_table (&link_info), "__ehdr_start", | |
1658 | FALSE, FALSE, TRUE); | |
1659 | ||
1660 | /* Only adjust the export class if the symbol was referenced | |
1661 | and not defined, otherwise leave it alone. */ | |
1662 | if (h != NULL | |
1663 | && (h->root.type == bfd_link_hash_new | |
1664 | || h->root.type == bfd_link_hash_undefined | |
1665 | || h->root.type == bfd_link_hash_undefweak | |
1666 | || h->root.type == bfd_link_hash_common)) | |
1667 | { | |
1668 | _bfd_elf_link_hash_hide_symbol (&link_info, h, TRUE); | |
1669 | if (ELF_ST_VISIBILITY (h->other) != STV_INTERNAL) | |
1670 | h->other = (h->other & ~ELF_ST_VISIBILITY (-1)) | STV_HIDDEN; | |
4199e3b8 AM |
1671 | /* Don't leave the symbol undefined. Undefined hidden |
1672 | symbols typically won't have dynamic relocations, but | |
1673 | we most likely will need dynamic relocations for | |
1674 | __ehdr_start if we are building a PIE or shared | |
1675 | library. */ | |
1676 | ehdr_start = h; | |
1677 | ehdr_start_save = h->root; | |
1678 | h->root.type = bfd_link_hash_defined; | |
1679 | h->root.u.def.section = bfd_abs_section_ptr; | |
1680 | h->root.u.def.value = 0; | |
c2763e27 RM |
1681 | } |
1682 | } | |
cde7cb01 | 1683 | |
a5382c42 MR |
1684 | /* If we are going to make any variable assignments, we need to |
1685 | let the ELF backend know about them in case the variables are | |
1686 | referred to by dynamic objects. */ | |
1687 | lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment); | |
1688 | } | |
252b5132 RH |
1689 | |
1690 | /* Let the ELF backend work out the sizes of any sections required | |
1691 | by dynamic linking. */ | |
1692 | rpath = command_line.rpath; | |
1693 | if (rpath == NULL) | |
1694 | rpath = (const char *) getenv ("LD_RUN_PATH"); | |
7ee314fa | 1695 | |
c72f2fb2 | 1696 | for (abfd = link_info.input_bfds; abfd; abfd = abfd->link.next) |
8dd881b6 L |
1697 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
1698 | { | |
1699 | const char *audit_libs = elf_dt_audit (abfd); | |
7ee314fa | 1700 | |
4724d37e | 1701 | /* If the input bfd contains an audit entry, we need to add it as |
8dd881b6 L |
1702 | a dep audit entry. */ |
1703 | if (audit_libs && *audit_libs != '\0') | |
1704 | { | |
1705 | char *cp = xstrdup (audit_libs); | |
1706 | do | |
1707 | { | |
1708 | int more = 0; | |
1709 | char *cp2 = strchr (cp, config.rpath_separator); | |
7ee314fa | 1710 | |
8dd881b6 L |
1711 | if (cp2) |
1712 | { | |
1713 | *cp2 = '\0'; | |
1714 | more = 1; | |
1715 | } | |
7ee314fa | 1716 | |
8dd881b6 L |
1717 | if (cp != NULL && *cp != '\0') |
1718 | gld${EMULATION_NAME}_append_to_separated_string (&depaudit, cp); | |
1719 | ||
1720 | cp = more ? ++cp2 : NULL; | |
1721 | } | |
1722 | while (cp != NULL); | |
1723 | } | |
1724 | } | |
7ee314fa | 1725 | |
5a580b3a | 1726 | if (! (bfd_elf_size_dynamic_sections |
f13a99db | 1727 | (link_info.output_bfd, command_line.soname, rpath, |
7ee314fa | 1728 | command_line.filter_shlib, audit, depaudit, |
252b5132 | 1729 | (const char * const *) command_line.auxiliary_filters, |
fd91d419 | 1730 | &link_info, &sinterp))) |
252b5132 | 1731 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); |
8423293d | 1732 | |
57e6abd2 | 1733 | ${ELF_INTERPRETER_SET_DEFAULT} |
252b5132 RH |
1734 | /* Let the user override the dynamic linker we are using. */ |
1735 | if (command_line.interpreter != NULL | |
1736 | && sinterp != NULL) | |
1737 | { | |
1738 | sinterp->contents = (bfd_byte *) command_line.interpreter; | |
eea6121a | 1739 | sinterp->size = strlen (command_line.interpreter) + 1; |
252b5132 RH |
1740 | } |
1741 | ||
1742 | /* Look for any sections named .gnu.warning. As a GNU extensions, | |
1743 | we treat such sections as containing warning messages. We print | |
1744 | out the warning message, and then zero out the section size so | |
1745 | that it does not get copied into the output file. */ | |
1746 | ||
1747 | { | |
1748 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
1749 | { | |
1750 | asection *s; | |
1751 | bfd_size_type sz; | |
1752 | char *msg; | |
252b5132 | 1753 | |
66be1055 | 1754 | if (is->flags.just_syms) |
252b5132 RH |
1755 | continue; |
1756 | ||
1757 | s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning"); | |
1758 | if (s == NULL) | |
1759 | continue; | |
1760 | ||
eea6121a | 1761 | sz = s->size; |
1e9cc1c2 | 1762 | msg = (char *) xmalloc ((size_t) (sz + 1)); |
bc251d50 | 1763 | if (! bfd_get_section_contents (is->the_bfd, s, msg, |
8c675694 | 1764 | (file_ptr) 0, sz)) |
252b5132 RH |
1765 | einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n", |
1766 | is->the_bfd); | |
bc251d50 | 1767 | msg[sz] = '\0'; |
1a72702b AM |
1768 | (*link_info.callbacks->warning) (&link_info, msg, |
1769 | (const char *) NULL, is->the_bfd, | |
1770 | (asection *) NULL, (bfd_vma) 0); | |
252b5132 RH |
1771 | free (msg); |
1772 | ||
9e3be61d AM |
1773 | /* Clobber the section size, so that we don't waste space |
1774 | copying the warning into the output file. If we've already | |
1775 | sized the output section, adjust its size. The adjustment | |
1776 | is on rawsize because targets that size sections early will | |
1777 | have called lang_reset_memory_regions after sizing. */ | |
1778 | if (s->output_section != NULL | |
1779 | && s->output_section->rawsize >= s->size) | |
1780 | s->output_section->rawsize -= s->size; | |
1781 | ||
eea6121a | 1782 | s->size = 0; |
11d2f718 | 1783 | |
9e3be61d AM |
1784 | /* Also set SEC_EXCLUDE, so that local symbols defined in the |
1785 | warning section don't get copied to the output. */ | |
a14a5de3 | 1786 | s->flags |= SEC_EXCLUDE | SEC_KEEP; |
252b5132 RH |
1787 | } |
1788 | } | |
8423293d | 1789 | |
1e035701 | 1790 | before_allocation_default (); |
8423293d | 1791 | |
f13a99db | 1792 | if (!bfd_elf_size_dynsym_hash_dynstr (link_info.output_bfd, &link_info)) |
8423293d | 1793 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); |
4199e3b8 AM |
1794 | |
1795 | if (ehdr_start != NULL) | |
1796 | { | |
1797 | /* If we twiddled __ehdr_start to defined earlier, put it back | |
1798 | as it was. */ | |
1799 | ehdr_start->root.type = ehdr_start_save.type; | |
1800 | ehdr_start->root.u = ehdr_start_save.u; | |
1801 | } | |
252b5132 RH |
1802 | } |
1803 | ||
41392f03 AM |
1804 | EOF |
1805 | fi | |
1806 | ||
1807 | if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then | |
92b93329 | 1808 | fragment <<EOF |
252b5132 | 1809 | |
04925e1e AM |
1810 | /* Try to open a dynamic archive. This is where we know that ELF |
1811 | dynamic libraries have an extension of .so (or .sl on oddball systems | |
1812 | like hpux). */ | |
1813 | ||
b34976b6 | 1814 | static bfd_boolean |
0c7a8e5a AM |
1815 | gld${EMULATION_NAME}_open_dynamic_archive |
1816 | (const char *arch, search_dirs_type *search, lang_input_statement_type *entry) | |
252b5132 | 1817 | { |
04925e1e AM |
1818 | const char *filename; |
1819 | char *string; | |
d4ae5fb0 AM |
1820 | size_t len; |
1821 | bfd_boolean opened = FALSE; | |
252b5132 | 1822 | |
66be1055 | 1823 | if (! entry->flags.maybe_archive) |
b34976b6 | 1824 | return FALSE; |
252b5132 | 1825 | |
04925e1e | 1826 | filename = entry->filename; |
d4ae5fb0 AM |
1827 | len = strlen (search->name) + strlen (filename); |
1828 | if (entry->flags.full_name_provided) | |
1829 | { | |
1830 | len += sizeof "/"; | |
1831 | string = (char *) xmalloc (len); | |
1832 | sprintf (string, "%s/%s", search->name, filename); | |
1833 | } | |
1834 | else | |
1835 | { | |
1836 | size_t xlen = 0; | |
252b5132 | 1837 | |
d4ae5fb0 | 1838 | len += strlen (arch) + sizeof "/lib.so"; |
04925e1e | 1839 | #ifdef EXTRA_SHLIB_EXTENSION |
d4ae5fb0 AM |
1840 | xlen = (strlen (EXTRA_SHLIB_EXTENSION) > 3 |
1841 | ? strlen (EXTRA_SHLIB_EXTENSION) - 3 | |
1842 | : 0); | |
04925e1e | 1843 | #endif |
d4ae5fb0 AM |
1844 | string = (char *) xmalloc (len + xlen); |
1845 | sprintf (string, "%s/lib%s%s.so", search->name, filename, arch); | |
04925e1e | 1846 | #ifdef EXTRA_SHLIB_EXTENSION |
d4ae5fb0 AM |
1847 | /* Try the .so extension first. If that fails build a new filename |
1848 | using EXTRA_SHLIB_EXTENSION. */ | |
1849 | opened = ldfile_try_open_bfd (string, entry); | |
1850 | if (!opened) | |
1851 | strcpy (string + len - 4, EXTRA_SHLIB_EXTENSION); | |
04925e1e | 1852 | #endif |
d4ae5fb0 | 1853 | } |
04925e1e | 1854 | |
d4ae5fb0 | 1855 | if (!opened && !ldfile_try_open_bfd (string, entry)) |
252b5132 | 1856 | { |
04925e1e | 1857 | free (string); |
b34976b6 | 1858 | return FALSE; |
04925e1e | 1859 | } |
252b5132 | 1860 | |
04925e1e | 1861 | entry->filename = string; |
252b5132 | 1862 | |
04925e1e AM |
1863 | /* We have found a dynamic object to include in the link. The ELF |
1864 | backend linker will create a DT_NEEDED entry in the .dynamic | |
1865 | section naming this file. If this file includes a DT_SONAME | |
1866 | entry, it will be used. Otherwise, the ELF linker will just use | |
1867 | the name of the file. For an archive found by searching, like | |
1868 | this one, the DT_NEEDED entry should consist of just the name of | |
1869 | the file, without the path information used to find it. Note | |
1870 | that we only need to do this if we have a dynamic object; an | |
1871 | archive will never be referenced by a DT_NEEDED entry. | |
252b5132 | 1872 | |
04925e1e AM |
1873 | FIXME: This approach--using bfd_elf_set_dt_needed_name--is not |
1874 | very pretty. I haven't been able to think of anything that is | |
1875 | pretty, though. */ | |
1876 | if (bfd_check_format (entry->the_bfd, bfd_object) | |
1877 | && (entry->the_bfd->flags & DYNAMIC) != 0) | |
1878 | { | |
66be1055 | 1879 | ASSERT (entry->flags.maybe_archive && entry->flags.search_dirs); |
252b5132 | 1880 | |
04925e1e | 1881 | /* Rather than duplicating the logic above. Just use the |
1c9acd94 | 1882 | filename we recorded earlier. */ |
04925e1e | 1883 | |
d4ae5fb0 AM |
1884 | if (!entry->flags.full_name_provided) |
1885 | filename = lbasename (entry->filename); | |
1c9acd94 | 1886 | bfd_elf_set_dt_needed_name (entry->the_bfd, filename); |
04925e1e AM |
1887 | } |
1888 | ||
b34976b6 | 1889 | return TRUE; |
04925e1e AM |
1890 | } |
1891 | ||
41392f03 AM |
1892 | EOF |
1893 | fi | |
cde43e70 AM |
1894 | |
1895 | if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then | |
92b93329 | 1896 | fragment <<EOF |
41392f03 | 1897 | |
afd7a018 | 1898 | /* A variant of lang_output_section_find used by place_orphan. */ |
04925e1e | 1899 | |
04925e1e | 1900 | static lang_output_section_statement_type * |
2a36a117 | 1901 | output_rel_find (asection *sec, int isdyn) |
04925e1e | 1902 | { |
04925e1e | 1903 | lang_output_section_statement_type *lookup; |
ba493122 | 1904 | lang_output_section_statement_type *last = NULL; |
2a36a117 | 1905 | lang_output_section_statement_type *last_alloc = NULL; |
48f2ff54 | 1906 | lang_output_section_statement_type *last_ro_alloc = NULL; |
ba493122 AM |
1907 | lang_output_section_statement_type *last_rel = NULL; |
1908 | lang_output_section_statement_type *last_rel_alloc = NULL; | |
24cdb50a | 1909 | int rela = sec->name[4] == 'a'; |
04925e1e | 1910 | |
afd7a018 AM |
1911 | for (lookup = &lang_output_section_statement.head->output_section_statement; |
1912 | lookup != NULL; | |
1913 | lookup = lookup->next) | |
04925e1e | 1914 | { |
66c103b7 | 1915 | if (lookup->constraint >= 0 |
0112cd26 | 1916 | && CONST_STRNEQ (lookup->name, ".rel")) |
04925e1e | 1917 | { |
24cdb50a | 1918 | int lookrela = lookup->name[4] == 'a'; |
ba493122 | 1919 | |
2a36a117 AM |
1920 | /* .rel.dyn must come before all other reloc sections, to suit |
1921 | GNU ld.so. */ | |
1922 | if (isdyn) | |
1923 | break; | |
1924 | ||
1925 | /* Don't place after .rel.plt as doing so results in wrong | |
1926 | dynamic tags. */ | |
1927 | if (strcmp (".plt", lookup->name + 4 + lookrela) == 0) | |
ba493122 | 1928 | break; |
2a36a117 AM |
1929 | |
1930 | if (rela == lookrela || last_rel == NULL) | |
24cdb50a | 1931 | last_rel = lookup; |
2a36a117 AM |
1932 | if ((rela == lookrela || last_rel_alloc == NULL) |
1933 | && lookup->bfd_section != NULL | |
ba493122 AM |
1934 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) |
1935 | last_rel_alloc = lookup; | |
04925e1e | 1936 | } |
2a36a117 AM |
1937 | |
1938 | last = lookup; | |
1939 | if (lookup->bfd_section != NULL | |
1940 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) | |
48f2ff54 AM |
1941 | { |
1942 | last_alloc = lookup; | |
1943 | if ((lookup->bfd_section->flags & SEC_READONLY) != 0) | |
1944 | last_ro_alloc = lookup; | |
1945 | } | |
252b5132 | 1946 | } |
ba493122 AM |
1947 | |
1948 | if (last_rel_alloc) | |
1949 | return last_rel_alloc; | |
1950 | ||
1951 | if (last_rel) | |
1952 | return last_rel; | |
1953 | ||
48f2ff54 AM |
1954 | if (last_ro_alloc) |
1955 | return last_ro_alloc; | |
1956 | ||
2a36a117 AM |
1957 | if (last_alloc) |
1958 | return last_alloc; | |
1959 | ||
ba493122 | 1960 | return last; |
252b5132 RH |
1961 | } |
1962 | ||
1963 | /* Place an orphan section. We use this to put random SHF_ALLOC | |
1964 | sections in the right segment. */ | |
1965 | ||
c2edb4b8 | 1966 | static lang_output_section_statement_type * |
8a99a385 AM |
1967 | gld${EMULATION_NAME}_place_orphan (asection *s, |
1968 | const char *secname, | |
1969 | int constraint) | |
252b5132 | 1970 | { |
afd7a018 AM |
1971 | static struct orphan_save hold[] = |
1972 | { | |
1973 | { ".text", | |
1974 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, | |
1975 | 0, 0, 0, 0 }, | |
1976 | { ".rodata", | |
1977 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1978 | 0, 0, 0, 0 }, | |
d85e71fe L |
1979 | { ".tdata", |
1980 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_THREAD_LOCAL, | |
1981 | 0, 0, 0, 0 }, | |
afd7a018 AM |
1982 | { ".data", |
1983 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, | |
1984 | 0, 0, 0, 0 }, | |
1985 | { ".bss", | |
1986 | SEC_ALLOC, | |
1987 | 0, 0, 0, 0 }, | |
1988 | { 0, | |
1989 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1990 | 0, 0, 0, 0 }, | |
1991 | { ".interp", | |
1992 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1993 | 0, 0, 0, 0 }, | |
1994 | { ".sdata", | |
1995 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA, | |
07890c07 | 1996 | 0, 0, 0, 0 }, |
175b7cd4 | 1997 | { ".comment", |
07890c07 AM |
1998 | SEC_HAS_CONTENTS, |
1999 | 0, 0, 0, 0 }, | |
afd7a018 AM |
2000 | }; |
2001 | enum orphan_save_index | |
2002 | { | |
2003 | orphan_text = 0, | |
2004 | orphan_rodata, | |
d85e71fe | 2005 | orphan_tdata, |
afd7a018 AM |
2006 | orphan_data, |
2007 | orphan_bss, | |
2008 | orphan_rel, | |
2009 | orphan_interp, | |
07890c07 AM |
2010 | orphan_sdata, |
2011 | orphan_nonalloc | |
afd7a018 AM |
2012 | }; |
2013 | static int orphan_init_done = 0; | |
6a345e87 | 2014 | struct orphan_save *place; |
afd7a018 | 2015 | lang_output_section_statement_type *after; |
252b5132 | 2016 | lang_output_section_statement_type *os; |
b5f14a6d | 2017 | lang_output_section_statement_type *match_by_name = NULL; |
24cdb50a | 2018 | int isdyn = 0; |
ecca9871 L |
2019 | int iself = s->owner->xvec->flavour == bfd_target_elf_flavour; |
2020 | unsigned int sh_type = iself ? elf_section_type (s) : SHT_NULL; | |
199af150 AM |
2021 | flagword flags; |
2022 | asection *nexts; | |
252b5132 | 2023 | |
0e1862bb | 2024 | if (!bfd_link_relocatable (&link_info) |
24cdb50a | 2025 | && link_info.combreloc |
ecca9871 | 2026 | && (s->flags & SEC_ALLOC)) |
24cdb50a | 2027 | { |
ecca9871 L |
2028 | if (iself) |
2029 | switch (sh_type) | |
2030 | { | |
2031 | case SHT_RELA: | |
2032 | secname = ".rela.dyn"; | |
2033 | isdyn = 1; | |
2034 | break; | |
2035 | case SHT_REL: | |
2036 | secname = ".rel.dyn"; | |
2037 | isdyn = 1; | |
2038 | break; | |
2039 | default: | |
2040 | break; | |
2041 | } | |
0112cd26 | 2042 | else if (CONST_STRNEQ (secname, ".rel")) |
ecca9871 L |
2043 | { |
2044 | secname = secname[4] == 'a' ? ".rela.dyn" : ".rel.dyn"; | |
2045 | isdyn = 1; | |
2046 | } | |
24cdb50a | 2047 | } |
aea4bd9d | 2048 | |
bcacc0f5 | 2049 | /* Look through the script to see where to place this section. */ |
d127ecce AM |
2050 | if (constraint == 0) |
2051 | for (os = lang_output_section_find (secname); | |
2052 | os != NULL; | |
2053 | os = next_matching_output_section_statement (os, 0)) | |
2054 | { | |
2055 | /* If we don't match an existing output section, tell | |
2056 | lang_insert_orphan to create a new output section. */ | |
2057 | constraint = SPECIAL; | |
2058 | ||
93dc595d L |
2059 | /* SEC_EXCLUDE is cleared when doing a relocatable link. But |
2060 | we can't merge 2 input sections with the same name when only | |
2061 | one of them has SHF_EXCLUDE. */ | |
d127ecce AM |
2062 | if (os->bfd_section != NULL |
2063 | && (os->bfd_section->flags == 0 | |
93dc595d | 2064 | || ((!bfd_link_relocatable (&link_info) |
68c638d6 NC |
2065 | || (iself && (((elf_section_flags (s) |
2066 | ^ elf_section_flags (os->bfd_section)) | |
2067 | & SHF_EXCLUDE) == 0))) | |
93dc595d | 2068 | && ((s->flags ^ os->bfd_section->flags) |
199af150 AM |
2069 | & (SEC_LOAD | SEC_ALLOC)) == 0 |
2070 | && _bfd_elf_match_sections_by_type (link_info.output_bfd, | |
2071 | os->bfd_section, | |
2072 | s->owner, s)))) | |
d127ecce AM |
2073 | { |
2074 | /* We already have an output section statement with this | |
2075 | name, and its bfd section has compatible flags. | |
2076 | If the section already exists but does not have any flags | |
2077 | set, then it has been created by the linker, probably as a | |
2078 | result of a --section-start command line switch. */ | |
b9c361e0 | 2079 | lang_add_section (&os->children, s, NULL, os); |
d127ecce AM |
2080 | return os; |
2081 | } | |
b5f14a6d DD |
2082 | |
2083 | /* Save unused output sections in case we can match them | |
2084 | against orphans later. */ | |
2085 | if (os->bfd_section == NULL) | |
2086 | match_by_name = os; | |
d127ecce | 2087 | } |
252b5132 | 2088 | |
b5f14a6d DD |
2089 | /* If we didn't match an active output section, see if we matched an |
2090 | unused one and use that. */ | |
2091 | if (match_by_name) | |
2092 | { | |
b9c361e0 | 2093 | lang_add_section (&match_by_name->children, s, NULL, match_by_name); |
b5f14a6d DD |
2094 | return match_by_name; |
2095 | } | |
2096 | ||
afd7a018 AM |
2097 | if (!orphan_init_done) |
2098 | { | |
2099 | struct orphan_save *ho; | |
07890c07 | 2100 | |
afd7a018 AM |
2101 | for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho) |
2102 | if (ho->name != NULL) | |
2103 | { | |
2104 | ho->os = lang_output_section_find (ho->name); | |
2105 | if (ho->os != NULL && ho->os->flags == 0) | |
2106 | ho->os->flags = ho->flags; | |
2107 | } | |
2108 | orphan_init_done = 1; | |
2109 | } | |
252b5132 RH |
2110 | |
2111 | /* If this is a final link, then always put .gnu.warning.SYMBOL | |
2112 | sections into the .text section to get them out of the way. */ | |
0e1862bb | 2113 | if (bfd_link_executable (&link_info) |
bcacc0f5 | 2114 | && CONST_STRNEQ (s->name, ".gnu.warning.") |
afd7a018 | 2115 | && hold[orphan_text].os != NULL) |
252b5132 | 2116 | { |
c2edb4b8 | 2117 | os = hold[orphan_text].os; |
b9c361e0 | 2118 | lang_add_section (&os->children, s, NULL, os); |
c2edb4b8 | 2119 | return os; |
252b5132 RH |
2120 | } |
2121 | ||
077fcd6a L |
2122 | flags = s->flags; |
2123 | if (!bfd_link_relocatable (&link_info)) | |
2124 | { | |
2125 | nexts = s; | |
2126 | while ((nexts = bfd_get_next_section_by_name (nexts->owner, nexts)) | |
2127 | != NULL) | |
2128 | if (nexts->output_section == NULL | |
2129 | && (nexts->flags & SEC_EXCLUDE) == 0 | |
2130 | && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0 | |
2131 | && (nexts->owner->flags & DYNAMIC) == 0 | |
2132 | && nexts->owner->usrdata != NULL | |
2133 | && !(((lang_input_statement_type *) nexts->owner->usrdata) | |
2134 | ->flags.just_syms) | |
2135 | && _bfd_elf_match_sections_by_type (nexts->owner, nexts, | |
2136 | s->owner, s)) | |
2137 | flags = (((flags ^ SEC_READONLY) | |
2138 | | (nexts->flags ^ SEC_READONLY)) | |
2139 | ^ SEC_READONLY); | |
2140 | } | |
2141 | ||
252b5132 RH |
2142 | /* Decide which segment the section should go in based on the |
2143 | section name and section flags. We put loadable .note sections | |
2144 | right after the .interp section, so that the PT_NOTE segment is | |
2145 | stored right after the program headers where the OS can read it | |
2146 | in the first page. */ | |
aea4bd9d | 2147 | |
71bfc0ae | 2148 | place = NULL; |
199af150 | 2149 | if ((flags & (SEC_ALLOC | SEC_DEBUGGING)) == 0) |
07890c07 | 2150 | place = &hold[orphan_nonalloc]; |
199af150 | 2151 | else if ((flags & SEC_ALLOC) == 0) |
71bfc0ae | 2152 | ; |
199af150 | 2153 | else if ((flags & SEC_LOAD) != 0 |
ecca9871 | 2154 | && ((iself && sh_type == SHT_NOTE) |
0112cd26 | 2155 | || (!iself && CONST_STRNEQ (secname, ".note")))) |
afd7a018 | 2156 | place = &hold[orphan_interp]; |
199af150 | 2157 | else if ((flags & (SEC_LOAD | SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) == 0) |
afd7a018 | 2158 | place = &hold[orphan_bss]; |
199af150 | 2159 | else if ((flags & SEC_SMALL_DATA) != 0) |
afd7a018 | 2160 | place = &hold[orphan_sdata]; |
199af150 | 2161 | else if ((flags & SEC_THREAD_LOCAL) != 0) |
d85e71fe | 2162 | place = &hold[orphan_tdata]; |
199af150 | 2163 | else if ((flags & SEC_READONLY) == 0) |
afd7a018 | 2164 | place = &hold[orphan_data]; |
ecca9871 | 2165 | else if (((iself && (sh_type == SHT_RELA || sh_type == SHT_REL)) |
0112cd26 | 2166 | || (!iself && CONST_STRNEQ (secname, ".rel"))) |
199af150 | 2167 | && (flags & SEC_LOAD) != 0) |
afd7a018 | 2168 | place = &hold[orphan_rel]; |
199af150 | 2169 | else if ((flags & SEC_CODE) == 0) |
afd7a018 AM |
2170 | place = &hold[orphan_rodata]; |
2171 | else | |
2172 | place = &hold[orphan_text]; | |
71bfc0ae | 2173 | |
afd7a018 | 2174 | after = NULL; |
5ba47421 | 2175 | if (place != NULL) |
252b5132 | 2176 | { |
afd7a018 | 2177 | if (place->os == NULL) |
5ba47421 | 2178 | { |
afd7a018 AM |
2179 | if (place->name != NULL) |
2180 | place->os = lang_output_section_find (place->name); | |
2181 | else | |
2182 | place->os = output_rel_find (s, isdyn); | |
5ba47421 | 2183 | } |
afd7a018 AM |
2184 | after = place->os; |
2185 | if (after == NULL) | |
93638471 AM |
2186 | after |
2187 | = lang_output_section_find_by_flags (s, flags, &place->os, | |
2188 | _bfd_elf_match_sections_by_type); | |
afd7a018 AM |
2189 | if (after == NULL) |
2190 | /* *ABS* is always the first output section statement. */ | |
2191 | after = &lang_output_section_statement.head->output_section_statement; | |
252b5132 RH |
2192 | } |
2193 | ||
c2edb4b8 | 2194 | return lang_insert_orphan (s, secname, constraint, after, place, NULL, NULL); |
252b5132 | 2195 | } |
c56feb2b AM |
2196 | EOF |
2197 | fi | |
2198 | ||
eaeb0a9d | 2199 | if test x"$LDEMUL_AFTER_ALLOCATION" != xgld"$EMULATION_NAME"_after_allocation; then |
92b93329 | 2200 | fragment <<EOF |
252b5132 | 2201 | |
deb04cdb | 2202 | static void |
eaeb0a9d | 2203 | gld${EMULATION_NAME}_after_allocation (void) |
deb04cdb | 2204 | { |
75938853 AM |
2205 | int need_layout = bfd_elf_discard_info (link_info.output_bfd, &link_info); |
2206 | ||
2207 | if (need_layout < 0) | |
2208 | einfo ("%X%P: .eh_frame/.stab edit: %E\n"); | |
2209 | else | |
2210 | gld${EMULATION_NAME}_map_segments (need_layout); | |
73d074b4 | 2211 | } |
41392f03 AM |
2212 | EOF |
2213 | fi | |
2214 | ||
2215 | if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then | |
92b93329 | 2216 | fragment <<EOF |
252b5132 RH |
2217 | |
2218 | static char * | |
0c7a8e5a | 2219 | gld${EMULATION_NAME}_get_script (int *isfile) |
252b5132 RH |
2220 | EOF |
2221 | ||
7225345d | 2222 | if test x"$COMPILE_IN" = xyes |
252b5132 RH |
2223 | then |
2224 | # Scripts compiled in. | |
2225 | ||
2226 | # sed commands to quote an ld script as a C string. | |
597e2591 | 2227 | sc="-f stringify.sed" |
252b5132 | 2228 | |
92b93329 | 2229 | fragment <<EOF |
60bcf0fa | 2230 | { |
252b5132 RH |
2231 | *isfile = 0; |
2232 | ||
0e1862bb | 2233 | if (bfd_link_relocatable (&link_info) && config.build_constructors) |
597e2591 | 2234 | return |
252b5132 | 2235 | EOF |
afd7a018 | 2236 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c |
0e1862bb | 2237 | echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c |
afd7a018 AM |
2238 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c |
2239 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c | |
2240 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c | |
61585df2 | 2241 | if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else |
afd7a018 AM |
2242 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c |
2243 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c | |
db6751f2 | 2244 | fi |
36af4a4e JJ |
2245 | if test -n "$GENERATE_PIE_SCRIPT" ; then |
2246 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
0e1862bb L |
2247 | echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c |
2248 | echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c | |
2249 | echo ' && link_info.relro' >> e${EMULATION_NAME}.c | |
fbfca19e | 2250 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2251 | sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c |
0e1862bb L |
2252 | echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c |
2253 | echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c | |
afd7a018 | 2254 | sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c |
36af4a4e | 2255 | fi |
0e1862bb | 2256 | echo ' ; else if (bfd_link_pie (&link_info)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2257 | sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c |
36af4a4e | 2258 | fi |
252b5132 | 2259 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then |
82434356 | 2260 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then |
0e1862bb | 2261 | echo ' ; else if (bfd_link_dll (&link_info) && link_info.combreloc' >> e${EMULATION_NAME}.c |
8c37241b | 2262 | echo ' && link_info.relro' >> e${EMULATION_NAME}.c |
fbfca19e | 2263 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2264 | sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c |
0e1862bb | 2265 | echo ' ; else if (bfd_link_dll (&link_info) && link_info.combreloc) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2266 | sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c |
82434356 | 2267 | fi |
0e1862bb | 2268 | echo ' ; else if (bfd_link_dll (&link_info)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2269 | sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c |
252b5132 | 2270 | fi |
82434356 | 2271 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then |
8c37241b | 2272 | echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c |
fbfca19e | 2273 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 AM |
2274 | sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c |
2275 | echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c | |
2276 | sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c | |
82434356 | 2277 | fi |
afd7a018 AM |
2278 | echo ' ; else return' >> e${EMULATION_NAME}.c |
2279 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c | |
2280 | echo '; }' >> e${EMULATION_NAME}.c | |
252b5132 RH |
2281 | |
2282 | else | |
2283 | # Scripts read from the filesystem. | |
2284 | ||
92b93329 | 2285 | fragment <<EOF |
60bcf0fa | 2286 | { |
252b5132 RH |
2287 | *isfile = 1; |
2288 | ||
0e1862bb | 2289 | if (bfd_link_relocatable (&link_info) && config.build_constructors) |
252b5132 | 2290 | return "ldscripts/${EMULATION_NAME}.xu"; |
0e1862bb | 2291 | else if (bfd_link_relocatable (&link_info)) |
252b5132 RH |
2292 | return "ldscripts/${EMULATION_NAME}.xr"; |
2293 | else if (!config.text_read_only) | |
2294 | return "ldscripts/${EMULATION_NAME}.xbn"; | |
a060b769 AM |
2295 | EOF |
2296 | if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : | |
2297 | else | |
92b93329 | 2298 | fragment <<EOF |
252b5132 RH |
2299 | else if (!config.magic_demand_paged) |
2300 | return "ldscripts/${EMULATION_NAME}.xn"; | |
a060b769 AM |
2301 | EOF |
2302 | fi | |
36af4a4e JJ |
2303 | if test -n "$GENERATE_PIE_SCRIPT" ; then |
2304 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 2305 | fragment <<EOF |
0e1862bb L |
2306 | else if (bfd_link_pie (&link_info) |
2307 | && link_info.combreloc | |
2308 | && link_info.relro | |
2309 | && (link_info.flags & DF_BIND_NOW)) | |
8c37241b | 2310 | return "ldscripts/${EMULATION_NAME}.xdw"; |
0e1862bb L |
2311 | else if (bfd_link_pie (&link_info) |
2312 | && link_info.combreloc) | |
36af4a4e JJ |
2313 | return "ldscripts/${EMULATION_NAME}.xdc"; |
2314 | EOF | |
2315 | fi | |
92b93329 | 2316 | fragment <<EOF |
0e1862bb | 2317 | else if (bfd_link_pie (&link_info)) |
36af4a4e JJ |
2318 | return "ldscripts/${EMULATION_NAME}.xd"; |
2319 | EOF | |
2320 | fi | |
a060b769 AM |
2321 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then |
2322 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 2323 | fragment <<EOF |
0e1862bb | 2324 | else if (bfd_link_dll (&link_info) && link_info.combreloc |
fbfca19e | 2325 | && link_info.relro && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 2326 | return "ldscripts/${EMULATION_NAME}.xsw"; |
0e1862bb | 2327 | else if (bfd_link_dll (&link_info) && link_info.combreloc) |
a060b769 AM |
2328 | return "ldscripts/${EMULATION_NAME}.xsc"; |
2329 | EOF | |
2330 | fi | |
92b93329 | 2331 | fragment <<EOF |
0e1862bb | 2332 | else if (bfd_link_dll (&link_info)) |
252b5132 | 2333 | return "ldscripts/${EMULATION_NAME}.xs"; |
a060b769 AM |
2334 | EOF |
2335 | fi | |
2336 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 2337 | fragment <<EOF |
8c37241b | 2338 | else if (link_info.combreloc && link_info.relro |
fbfca19e | 2339 | && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 2340 | return "ldscripts/${EMULATION_NAME}.xw"; |
a060b769 AM |
2341 | else if (link_info.combreloc) |
2342 | return "ldscripts/${EMULATION_NAME}.xc"; | |
2343 | EOF | |
2344 | fi | |
92b93329 | 2345 | fragment <<EOF |
252b5132 RH |
2346 | else |
2347 | return "ldscripts/${EMULATION_NAME}.x"; | |
2348 | } | |
252b5132 | 2349 | |
3b108066 | 2350 | EOF |
41392f03 AM |
2351 | fi |
2352 | fi | |
3b108066 | 2353 | |
e0ee487b | 2354 | if test -n "$PARSE_AND_LIST_PROLOGUE" ; then |
92b93329 | 2355 | fragment <<EOF |
e0ee487b L |
2356 | $PARSE_AND_LIST_PROLOGUE |
2357 | EOF | |
2358 | fi | |
2359 | ||
92b93329 | 2360 | fragment <<EOF |
e0ee487b | 2361 | |
29063f8b NC |
2362 | enum elf_options |
2363 | { | |
2364 | OPTION_DISABLE_NEW_DTAGS = 400, | |
2365 | OPTION_ENABLE_NEW_DTAGS, | |
2366 | OPTION_GROUP, | |
2367 | OPTION_EH_FRAME_HDR, | |
2368 | OPTION_NO_EH_FRAME_HDR, | |
2369 | OPTION_EXCLUDE_LIBS, | |
2370 | OPTION_HASH_STYLE, | |
2371 | OPTION_BUILD_ID, | |
2372 | OPTION_AUDIT, | |
2373 | OPTION_COMPRESS_DEBUG | |
2374 | }; | |
e13629bc | 2375 | |
3bcf5557 | 2376 | static void |
0c7a8e5a AM |
2377 | gld${EMULATION_NAME}_add_options |
2378 | (int ns, char **shortopts, int nl, struct option **longopts, | |
2379 | int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED) | |
e0ee487b | 2380 | { |
fb42df5e AM |
2381 | EOF |
2382 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2383 | fragment <<EOF | |
7ee314fa | 2384 | static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:P:"; |
fb42df5e AM |
2385 | EOF |
2386 | else | |
2387 | fragment <<EOF | |
2388 | static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:"; | |
2389 | EOF | |
2390 | fi | |
2391 | fragment <<EOF | |
3bcf5557 | 2392 | static const struct option xtra_long[] = { |
fb42df5e AM |
2393 | EOF |
2394 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2395 | fragment <<EOF | |
7ee314fa | 2396 | {"audit", required_argument, NULL, OPTION_AUDIT}, |
fb42df5e AM |
2397 | {"Bgroup", no_argument, NULL, OPTION_GROUP}, |
2398 | EOF | |
2399 | fi | |
2400 | fragment <<EOF | |
2401 | {"build-id", optional_argument, NULL, OPTION_BUILD_ID}, | |
0ce398f1 | 2402 | {"compress-debug-sections", required_argument, NULL, OPTION_COMPRESS_DEBUG}, |
e0ee487b | 2403 | EOF |
e0ee487b | 2404 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then |
92b93329 | 2405 | fragment <<EOF |
fb42df5e | 2406 | {"depaudit", required_argument, NULL, 'P'}, |
3bcf5557 AM |
2407 | {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS}, |
2408 | {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS}, | |
2409 | {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR}, | |
29063f8b | 2410 | {"no-eh-frame-hdr", no_argument, NULL, OPTION_NO_EH_FRAME_HDR}, |
b58f81ae | 2411 | {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS}, |
fdc90cb4 | 2412 | {"hash-style", required_argument, NULL, OPTION_HASH_STYLE}, |
e0ee487b L |
2413 | EOF |
2414 | fi | |
e0ee487b | 2415 | if test -n "$PARSE_AND_LIST_LONGOPTS" ; then |
92b93329 | 2416 | fragment <<EOF |
3bcf5557 | 2417 | $PARSE_AND_LIST_LONGOPTS |
e0ee487b L |
2418 | EOF |
2419 | fi | |
92b93329 | 2420 | fragment <<EOF |
3bcf5557 AM |
2421 | {NULL, no_argument, NULL, 0} |
2422 | }; | |
2423 | ||
2424 | *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short)); | |
2425 | memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short)); | |
2426 | *longopts = (struct option *) | |
2427 | xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); | |
2428 | memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); | |
2429 | } | |
04925e1e | 2430 | |
24382dca | 2431 | #define DEFAULT_BUILD_ID_STYLE "sha1" |
c0065db7 | 2432 | |
3bcf5557 | 2433 | static bfd_boolean |
0c7a8e5a | 2434 | gld${EMULATION_NAME}_handle_option (int optc) |
e0ee487b | 2435 | { |
e0ee487b L |
2436 | switch (optc) |
2437 | { | |
2438 | default: | |
3bcf5557 | 2439 | return FALSE; |
6c1439be | 2440 | |
c0065db7 | 2441 | case OPTION_BUILD_ID: |
30e8ee25 | 2442 | if (emit_note_gnu_build_id != NULL) |
c0065db7 | 2443 | { |
30e8ee25 AM |
2444 | free ((char *) emit_note_gnu_build_id); |
2445 | emit_note_gnu_build_id = NULL; | |
c0065db7 RM |
2446 | } |
2447 | if (optarg == NULL) | |
2448 | optarg = DEFAULT_BUILD_ID_STYLE; | |
2449 | if (strcmp (optarg, "none")) | |
30e8ee25 | 2450 | emit_note_gnu_build_id = xstrdup (optarg); |
c0065db7 | 2451 | break; |
fb42df5e | 2452 | |
0ce398f1 L |
2453 | case OPTION_COMPRESS_DEBUG: |
2454 | if (strcasecmp (optarg, "none") == 0) | |
2455 | link_info.compress_debug = COMPRESS_DEBUG_NONE; | |
2456 | else if (strcasecmp (optarg, "zlib") == 0) | |
19a7fe52 | 2457 | link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB; |
0ce398f1 L |
2458 | else if (strcasecmp (optarg, "zlib-gnu") == 0) |
2459 | link_info.compress_debug = COMPRESS_DEBUG_GNU_ZLIB; | |
2460 | else if (strcasecmp (optarg, "zlib-gabi") == 0) | |
2461 | link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB; | |
2462 | else | |
2463 | einfo (_("%P%F: invalid --compress-debug-sections option: \`%s'\n"), | |
2464 | optarg); | |
2465 | break; | |
fb42df5e AM |
2466 | EOF |
2467 | ||
2468 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2469 | fragment <<EOF | |
7ee314fa | 2470 | case OPTION_AUDIT: |
4724d37e | 2471 | gld${EMULATION_NAME}_append_to_separated_string (&audit, optarg); |
7ee314fa | 2472 | break; |
fb42df5e | 2473 | |
7ee314fa AM |
2474 | case 'P': |
2475 | gld${EMULATION_NAME}_append_to_separated_string (&depaudit, optarg); | |
2476 | break; | |
c0065db7 | 2477 | |
6c1439be | 2478 | case OPTION_DISABLE_NEW_DTAGS: |
b34976b6 | 2479 | link_info.new_dtags = FALSE; |
6c1439be L |
2480 | break; |
2481 | ||
2482 | case OPTION_ENABLE_NEW_DTAGS: | |
b34976b6 | 2483 | link_info.new_dtags = TRUE; |
6c1439be L |
2484 | break; |
2485 | ||
65765700 | 2486 | case OPTION_EH_FRAME_HDR: |
2f0c68f2 | 2487 | link_info.eh_frame_hdr_type = DWARF2_EH_HDR; |
65765700 JJ |
2488 | break; |
2489 | ||
29063f8b NC |
2490 | case OPTION_NO_EH_FRAME_HDR: |
2491 | link_info.eh_frame_hdr_type = 0; | |
2492 | break; | |
2493 | ||
a1ab1d2a UD |
2494 | case OPTION_GROUP: |
2495 | link_info.flags_1 |= (bfd_vma) DF_1_GROUP; | |
2496 | /* Groups must be self-contained. */ | |
560e09e9 NC |
2497 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; |
2498 | link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR; | |
a1ab1d2a UD |
2499 | break; |
2500 | ||
b58f81ae DJ |
2501 | case OPTION_EXCLUDE_LIBS: |
2502 | add_excluded_libs (optarg); | |
2503 | break; | |
2504 | ||
fdc90cb4 JJ |
2505 | case OPTION_HASH_STYLE: |
2506 | link_info.emit_hash = FALSE; | |
2507 | link_info.emit_gnu_hash = FALSE; | |
2508 | if (strcmp (optarg, "sysv") == 0) | |
2509 | link_info.emit_hash = TRUE; | |
2510 | else if (strcmp (optarg, "gnu") == 0) | |
2511 | link_info.emit_gnu_hash = TRUE; | |
2512 | else if (strcmp (optarg, "both") == 0) | |
2513 | { | |
2514 | link_info.emit_hash = TRUE; | |
2515 | link_info.emit_gnu_hash = TRUE; | |
2516 | } | |
2517 | else | |
2518 | einfo (_("%P%F: invalid hash style \`%s'\n"), optarg); | |
2519 | break; | |
2520 | ||
fb42df5e AM |
2521 | EOF |
2522 | fi | |
2523 | fragment <<EOF | |
e0ee487b | 2524 | case 'z': |
fb42df5e AM |
2525 | if (strcmp (optarg, "defs") == 0) |
2526 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; | |
2527 | else if (strcmp (optarg, "muldefs") == 0) | |
2528 | link_info.allow_multiple_definition = TRUE; | |
2529 | else if (CONST_STRNEQ (optarg, "max-page-size=")) | |
2530 | { | |
2531 | char *end; | |
2532 | ||
2533 | config.maxpagesize = strtoul (optarg + 14, &end, 0); | |
2534 | if (*end || (config.maxpagesize & (config.maxpagesize - 1)) != 0) | |
2535 | einfo (_("%P%F: invalid maxium page size \`%s'\n"), | |
2536 | optarg + 14); | |
2537 | } | |
2538 | else if (CONST_STRNEQ (optarg, "common-page-size=")) | |
2539 | { | |
2540 | char *end; | |
2541 | config.commonpagesize = strtoul (optarg + 17, &end, 0); | |
2542 | if (*end | |
2543 | || (config.commonpagesize & (config.commonpagesize - 1)) != 0) | |
2544 | einfo (_("%P%F: invalid common page size \`%s'\n"), | |
2545 | optarg + 17); | |
2546 | } | |
04c3a755 NS |
2547 | else if (CONST_STRNEQ (optarg, "stack-size=")) |
2548 | { | |
2549 | char *end; | |
2550 | link_info.stacksize = strtoul (optarg + 11, &end, 0); | |
2551 | if (*end || link_info.stacksize < 0) | |
2552 | einfo (_("%P%F: invalid stack size \`%s'\n"), optarg + 11); | |
2553 | if (!link_info.stacksize) | |
2554 | /* Use -1 for explicit no-stack, because zero means | |
2555 | 'default'. */ | |
2556 | link_info.stacksize = -1; | |
2557 | } | |
fb42df5e AM |
2558 | else if (strcmp (optarg, "execstack") == 0) |
2559 | { | |
2560 | link_info.execstack = TRUE; | |
2561 | link_info.noexecstack = FALSE; | |
2562 | } | |
2563 | else if (strcmp (optarg, "noexecstack") == 0) | |
2564 | { | |
2565 | link_info.noexecstack = TRUE; | |
2566 | link_info.execstack = FALSE; | |
2567 | } | |
2568 | EOF | |
d258b828 | 2569 | |
fb42df5e AM |
2570 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then |
2571 | fragment <<EOF | |
b039ef04 L |
2572 | else if (strcmp (optarg, "global") == 0) |
2573 | link_info.flags_1 |= (bfd_vma) DF_1_GLOBAL; | |
fb42df5e | 2574 | else if (strcmp (optarg, "initfirst") == 0) |
e0ee487b L |
2575 | link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST; |
2576 | else if (strcmp (optarg, "interpose") == 0) | |
2577 | link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE; | |
2578 | else if (strcmp (optarg, "loadfltr") == 0) | |
2579 | link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR; | |
2580 | else if (strcmp (optarg, "nodefaultlib") == 0) | |
2581 | link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB; | |
2582 | else if (strcmp (optarg, "nodelete") == 0) | |
2583 | link_info.flags_1 |= (bfd_vma) DF_1_NODELETE; | |
2584 | else if (strcmp (optarg, "nodlopen") == 0) | |
2585 | link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN; | |
2586 | else if (strcmp (optarg, "nodump") == 0) | |
2587 | link_info.flags_1 |= (bfd_vma) DF_1_NODUMP; | |
2588 | else if (strcmp (optarg, "now") == 0) | |
2589 | { | |
2590 | link_info.flags |= (bfd_vma) DF_BIND_NOW; | |
2591 | link_info.flags_1 |= (bfd_vma) DF_1_NOW; | |
2592 | } | |
5fa222e4 AM |
2593 | else if (strcmp (optarg, "lazy") == 0) |
2594 | { | |
2595 | link_info.flags &= ~(bfd_vma) DF_BIND_NOW; | |
2596 | link_info.flags_1 &= ~(bfd_vma) DF_1_NOW; | |
2597 | } | |
e0ee487b L |
2598 | else if (strcmp (optarg, "origin") == 0) |
2599 | { | |
2600 | link_info.flags |= (bfd_vma) DF_ORIGIN; | |
2601 | link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN; | |
2602 | } | |
db6751f2 | 2603 | else if (strcmp (optarg, "combreloc") == 0) |
b34976b6 | 2604 | link_info.combreloc = TRUE; |
db6751f2 | 2605 | else if (strcmp (optarg, "nocombreloc") == 0) |
b34976b6 | 2606 | link_info.combreloc = FALSE; |
8bd621d8 | 2607 | else if (strcmp (optarg, "nocopyreloc") == 0) |
0c7a8e5a | 2608 | link_info.nocopyreloc = TRUE; |
8c37241b JJ |
2609 | else if (strcmp (optarg, "relro") == 0) |
2610 | link_info.relro = TRUE; | |
2611 | else if (strcmp (optarg, "norelro") == 0) | |
2612 | link_info.relro = FALSE; | |
b8871f35 L |
2613 | else if (strcmp (optarg, "common") == 0) |
2614 | link_info.elf_stt_common = elf_stt_common; | |
2615 | else if (strcmp (optarg, "nocommon") == 0) | |
2616 | link_info.elf_stt_common = no_elf_stt_common; | |
c192a133 AM |
2617 | else if (strcmp (optarg, "text") == 0) |
2618 | link_info.error_textrel = TRUE; | |
2619 | else if (strcmp (optarg, "notext") == 0) | |
2620 | link_info.error_textrel = FALSE; | |
2621 | else if (strcmp (optarg, "textoff") == 0) | |
2622 | link_info.error_textrel = FALSE; | |
88b882e9 | 2623 | EOF |
fb42df5e | 2624 | fi |
88b882e9 | 2625 | |
eba27bd7 L |
2626 | if test -n "$PARSE_AND_LIST_ARGS_CASE_Z" ; then |
2627 | fragment <<EOF | |
2628 | $PARSE_AND_LIST_ARGS_CASE_Z | |
2629 | EOF | |
2630 | fi | |
2631 | ||
92b93329 | 2632 | fragment <<EOF |
fb42df5e AM |
2633 | else |
2634 | einfo (_("%P: warning: -z %s ignored.\n"), optarg); | |
6c1439be | 2635 | break; |
e0ee487b | 2636 | EOF |
e0ee487b L |
2637 | |
2638 | if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then | |
92b93329 | 2639 | fragment <<EOF |
e0ee487b L |
2640 | $PARSE_AND_LIST_ARGS_CASES |
2641 | EOF | |
2642 | fi | |
2643 | ||
92b93329 | 2644 | fragment <<EOF |
e0ee487b L |
2645 | } |
2646 | ||
3bcf5557 | 2647 | return TRUE; |
e0ee487b L |
2648 | } |
2649 | ||
41392f03 | 2650 | EOF |
41392f03 | 2651 | |
4b209b22 | 2652 | if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then |
c58212ea | 2653 | gld_list_options="gld${EMULATION_NAME}_list_options" |
eba27bd7 | 2654 | if test -n "$PARSE_AND_LIST_OPTIONS"; then |
92b93329 | 2655 | fragment <<EOF |
41392f03 | 2656 | |
e0ee487b | 2657 | static void |
0c7a8e5a | 2658 | gld${EMULATION_NAME}_list_options (FILE * file) |
e0ee487b | 2659 | { |
fb42df5e | 2660 | EOF |
e0ee487b L |
2661 | |
2662 | if test -n "$PARSE_AND_LIST_OPTIONS" ; then | |
92b93329 | 2663 | fragment <<EOF |
e0ee487b L |
2664 | $PARSE_AND_LIST_OPTIONS |
2665 | EOF | |
2666 | fi | |
2667 | ||
92b93329 | 2668 | fragment <<EOF |
e0ee487b L |
2669 | } |
2670 | EOF | |
c58212ea L |
2671 | else |
2672 | gld_list_options="NULL" | |
2673 | fi | |
e0ee487b L |
2674 | |
2675 | if test -n "$PARSE_AND_LIST_EPILOGUE" ; then | |
92b93329 | 2676 | fragment <<EOF |
e0ee487b L |
2677 | $PARSE_AND_LIST_EPILOGUE |
2678 | EOF | |
2679 | fi | |
41392f03 | 2680 | fi |
e0ee487b | 2681 | |
92b93329 | 2682 | fragment <<EOF |
252b5132 | 2683 | |
60bcf0fa | 2684 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = |
252b5132 | 2685 | { |
41392f03 AM |
2686 | ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse}, |
2687 | ${LDEMUL_SYSLIB-syslib_default}, | |
2688 | ${LDEMUL_HLL-hll_default}, | |
5fe2850d | 2689 | ${LDEMUL_AFTER_PARSE-gld${EMULATION_NAME}_after_parse}, |
41392f03 | 2690 | ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open}, |
eaeb0a9d | 2691 | ${LDEMUL_AFTER_ALLOCATION-gld${EMULATION_NAME}_after_allocation}, |
41392f03 AM |
2692 | ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default}, |
2693 | ${LDEMUL_CHOOSE_TARGET-ldemul_default_target}, | |
2694 | ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation}, | |
2695 | ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script}, | |
252b5132 RH |
2696 | "${EMULATION_NAME}", |
2697 | "${OUTPUT_FORMAT}", | |
eaeb0a9d | 2698 | ${LDEMUL_FINISH-finish_default}, |
41392f03 AM |
2699 | ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL}, |
2700 | ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive}, | |
2701 | ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan}, | |
2702 | ${LDEMUL_SET_SYMBOLS-NULL}, | |
3bcf5557 AM |
2703 | ${LDEMUL_PARSE_ARGS-NULL}, |
2704 | gld${EMULATION_NAME}_add_options, | |
2705 | gld${EMULATION_NAME}_handle_option, | |
41392f03 | 2706 | ${LDEMUL_UNRECOGNIZED_FILE-NULL}, |
c58212ea | 2707 | ${LDEMUL_LIST_OPTIONS-${gld_list_options}}, |
4a43e768 | 2708 | ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols}, |
41392f03 | 2709 | ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL}, |
7a2f2d82 DD |
2710 | ${LDEMUL_NEW_VERS_PATTERN-NULL}, |
2711 | ${LDEMUL_EXTRA_MAP_FILE_TEXT-NULL} | |
252b5132 RH |
2712 | }; |
2713 | EOF |