]>
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 ${EMULATION_NAME} | |
6f2750fe | 15 | Copyright (C) 1991-2016 Free Software Foundation, Inc. |
252b5132 RH |
16 | Written by Steve Chamberlain <sac@cygnus.com> |
17 | ELF support by Ian Lance Taylor <ian@cygnus.com> | |
18 | ||
f96b4a7b NC |
19 | This file is part of the GNU Binutils. |
20 | ||
21 | This program is free software; you can redistribute it and/or modify | |
22 | it under the terms of the GNU General Public License as published by | |
23 | the Free Software Foundation; either version 3 of the License, or | |
24 | (at your option) any later version. | |
25 | ||
26 | This program is distributed in the hope that it will be useful, | |
27 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
28 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
29 | GNU General Public License for more details. | |
30 | ||
31 | You should have received a copy of the GNU General Public License | |
32 | along with this program; if not, write to the Free Software | |
33 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
34 | MA 02110-1301, USA. */ | |
252b5132 RH |
35 | |
36 | #define TARGET_IS_${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 | { | |
199fa1b7 | 498 | char * var; |
04925e1e AM |
499 | char *filename, *sset; |
500 | ||
c76308d2 | 501 | s = strchr (path, config.rpath_separator); |
04925e1e AM |
502 | if (s == NULL) |
503 | s = path + strlen (path); | |
504 | ||
07f1e47a AM |
505 | #if HAVE_DOS_BASED_FILE_SYSTEM |
506 | /* Assume a match on the second char is part of drive specifier. */ | |
507 | else if (config.rpath_separator == ':' | |
508 | && s == path + 1 | |
509 | && ISALPHA (*path)) | |
510 | { | |
511 | s = strchr (s + 1, config.rpath_separator); | |
512 | if (s == NULL) | |
513 | s = path + strlen (path); | |
514 | } | |
515 | #endif | |
04925e1e AM |
516 | filename = (char *) xmalloc (s - path + len + 2); |
517 | if (s == path) | |
518 | sset = filename; | |
519 | else | |
520 | { | |
521 | memcpy (filename, path, s - path); | |
522 | filename[s - path] = '/'; | |
523 | sset = filename + (s - path) + 1; | |
524 | } | |
525 | strcpy (sset, name); | |
526 | ||
199fa1b7 NC |
527 | /* PR 20535: Support the same pseudo-environment variables that |
528 | are supported by ld.so. Namely, $ORIGIN, $LIB and $PLATFORM. | |
529 | Since there can be more than one occurrence of these tokens in | |
530 | the path we loop until no more are found. */ | |
531 | while ((var = strchr (filename, '$')) != NULL) | |
532 | { | |
533 | /* The ld.so manual page does not say, but I am going to assume that | |
534 | these tokens are terminated by a directory seperator character | |
535 | (/) or the end of the string. There is also an implication that | |
536 | $ORIGIN should only be used at the start of a path, but that is | |
537 | not enforced here. | |
538 | ||
539 | FIXME: The ld.so manual page also states that it allows ${ORIGIN} | |
540 | ${LIB} and ${PLATFORM}. We should support these variants too. | |
541 | ||
542 | FIXME: The code could be a lot cleverer about allocating space | |
543 | for the processed string. */ | |
544 | char * end = strchr (var, '/'); | |
545 | char * replacement = NULL; | |
546 | char * freeme = NULL; | |
547 | unsigned flen = strlen (filename); | |
548 | ||
549 | if (end != NULL) | |
550 | /* Temporarily terminate the filename at the end of the token. */ | |
551 | * end = 0; | |
552 | ||
553 | switch (var[1]) | |
554 | { | |
555 | case 'O': | |
556 | if (strcmp (var + 2, "RIGIN") == 0) | |
557 | { | |
558 | /* ORIGIN - replace with the full path to the directory | |
559 | containing the program or shared object. */ | |
560 | if (needed.by == NULL) | |
561 | break; | |
562 | replacement = bfd_get_filename (needed.by); | |
563 | if (replacement) | |
564 | { | |
565 | char * slash; | |
566 | ||
567 | if (replacement[0] == '/') | |
568 | freeme = xstrdup (replacement); | |
569 | else | |
570 | { | |
571 | char * current_dir = getpwd (); | |
572 | ||
573 | freeme = xmalloc (strlen (replacement) + strlen (current_dir)); | |
574 | sprintf (freeme, "%s/%s", current_dir, replacement); | |
575 | } | |
576 | ||
577 | replacement = freeme; | |
578 | if ((slash = strrchr (replacement, '/')) != NULL) | |
579 | * slash = 0; | |
580 | } | |
581 | } | |
582 | break; | |
583 | ||
584 | case 'L': | |
585 | if (strcmp (var + 2, "IB") == 0) | |
586 | { | |
587 | /* LIB - replace with "lib" in 32-bit environments | |
588 | and "lib64" in 64-bit environments. */ | |
589 | ||
590 | /* Note - we could replace this switch statement by | |
591 | conditional fragments of shell script, but that is messy. | |
592 | Any compiler worth its salt is going to optimize away | |
593 | all but one of these case statements anyway. */ | |
594 | switch ($ELFSIZE) | |
595 | { | |
596 | case 32: replacement = "lib"; break; | |
597 | case 64: replacement = "lib64"; break; | |
598 | default: | |
599 | /* $ELFSIZE is not 32 or 64 ... */ | |
600 | abort (); | |
601 | } | |
602 | } | |
603 | break; | |
604 | ||
605 | case 'P': | |
606 | if (strcmp (var + 2, "LATFORM") == 0) | |
607 | { | |
88ba72a2 NC |
608 | /* Supporting $PLATFORM in a cross-hosted environment is not |
609 | possible. Supporting it in a native environment involves | |
610 | loading the <sys/auxv.h> header file which loads the | |
611 | system <elf.h> header file, which conflicts with the | |
612 | "include/elf/mips.h" header file. */ | |
613 | replacement = NULL; | |
199fa1b7 NC |
614 | } |
615 | break; | |
616 | ||
617 | default: | |
618 | break; | |
619 | } | |
620 | ||
621 | if (replacement) | |
622 | { | |
623 | char * filename2 = xmalloc (flen + strlen (replacement)); | |
624 | ||
625 | if (end) | |
626 | sprintf (filename2, "%.*s%s/%s", | |
627 | (int)(var - filename), filename, | |
628 | replacement, end + 1); | |
629 | else | |
630 | sprintf (filename2, "%.*s%s", | |
631 | (int)(var - filename), filename, | |
632 | replacement); | |
633 | ||
634 | free (filename); | |
635 | filename = filename2; | |
636 | /* There is no need to restore the path separator (when | |
637 | end != NULL) as we have replaced the entire string. */ | |
638 | } | |
639 | else | |
640 | { | |
641 | if (verbose) | |
642 | /* We only issue an "unrecognised" message in verbose mode | |
643 | as the $<foo> token might be a legitimate component of | |
644 | a path name in the target's file system. */ | |
88ba72a2 | 645 | info_msg (_("unrecognised or unsupported token '%s' in search path\n"), var); |
199fa1b7 NC |
646 | |
647 | if (end) | |
648 | /* Restore the path separator. */ | |
649 | * end = '/'; | |
650 | } | |
651 | ||
652 | free (freeme); | |
653 | } | |
654 | ||
e56f61be L |
655 | needed.name = filename; |
656 | if (gld${EMULATION_NAME}_try_needed (&needed, force)) | |
b34976b6 | 657 | return TRUE; |
04925e1e AM |
658 | |
659 | free (filename); | |
660 | ||
661 | if (*s == '\0') | |
662 | break; | |
663 | path = s + 1; | |
664 | } | |
665 | ||
b34976b6 | 666 | return FALSE; |
04925e1e AM |
667 | } |
668 | ||
669 | EOF | |
9c8ebd6a | 670 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
92b93329 | 671 | fragment <<EOF |
9c8ebd6a | 672 | |
c76308d2 RS |
673 | /* Add the sysroot to every entry in a path separated by |
674 | config.rpath_separator. */ | |
9c8ebd6a DJ |
675 | |
676 | static char * | |
0c7a8e5a | 677 | gld${EMULATION_NAME}_add_sysroot (const char *path) |
9c8ebd6a DJ |
678 | { |
679 | int len, colons, i; | |
680 | char *ret, *p; | |
681 | ||
682 | len = strlen (path); | |
683 | colons = 0; | |
684 | i = 0; | |
685 | while (path[i]) | |
c76308d2 | 686 | if (path[i++] == config.rpath_separator) |
9c8ebd6a DJ |
687 | colons++; |
688 | ||
689 | if (path[i]) | |
690 | colons++; | |
691 | ||
42644a89 | 692 | len = len + (colons + 1) * strlen (ld_sysroot); |
9c8ebd6a DJ |
693 | ret = xmalloc (len + 1); |
694 | strcpy (ret, ld_sysroot); | |
695 | p = ret + strlen (ret); | |
696 | i = 0; | |
697 | while (path[i]) | |
c76308d2 | 698 | if (path[i] == config.rpath_separator) |
9c8ebd6a | 699 | { |
0c7a8e5a | 700 | *p++ = path[i++]; |
9c8ebd6a DJ |
701 | strcpy (p, ld_sysroot); |
702 | p = p + strlen (p); | |
9c8ebd6a DJ |
703 | } |
704 | else | |
705 | *p++ = path[i++]; | |
706 | ||
707 | *p = 0; | |
708 | return ret; | |
709 | } | |
04925e1e | 710 | |
3dc16cab DJ |
711 | EOF |
712 | case ${target} in | |
ebe1fac1 | 713 | *-*-freebsd* | *-*-dragonfly*) |
92b93329 | 714 | fragment <<EOF |
ebe1fac1 NC |
715 | /* Read the system search path the FreeBSD way rather than the Linux way. */ |
716 | #ifdef HAVE_ELF_HINTS_H | |
717 | #include <elf-hints.h> | |
718 | #else | |
719 | #include "elf-hints-local.h" | |
720 | #endif | |
721 | ||
722 | static bfd_boolean | |
d5c8b1f8 AM |
723 | gld${EMULATION_NAME}_check_ld_elf_hints (const struct bfd_link_needed_list *l, |
724 | int force) | |
ebe1fac1 NC |
725 | { |
726 | static bfd_boolean initialized; | |
727 | static char *ld_elf_hints; | |
728 | struct dt_needed needed; | |
729 | ||
730 | if (!initialized) | |
731 | { | |
732 | FILE *f; | |
733 | char *tmppath; | |
734 | ||
ff7a0acf | 735 | tmppath = concat (ld_sysroot, _PATH_ELF_HINTS, (const char *) NULL); |
ebe1fac1 NC |
736 | f = fopen (tmppath, FOPEN_RB); |
737 | free (tmppath); | |
738 | if (f != NULL) | |
739 | { | |
740 | struct elfhints_hdr hdr; | |
741 | ||
742 | if (fread (&hdr, 1, sizeof (hdr), f) == sizeof (hdr) | |
743 | && hdr.magic == ELFHINTS_MAGIC | |
744 | && hdr.version == 1) | |
745 | { | |
746 | if (fseek (f, hdr.strtab + hdr.dirlist, SEEK_SET) != -1) | |
747 | { | |
748 | char *b; | |
749 | ||
750 | b = xmalloc (hdr.dirlistlen + 1); | |
751 | if (fread (b, 1, hdr.dirlistlen + 1, f) == | |
752 | hdr.dirlistlen + 1) | |
753 | ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b); | |
e13629bc | 754 | |
ebe1fac1 NC |
755 | free (b); |
756 | } | |
757 | } | |
758 | fclose (f); | |
759 | } | |
760 | ||
761 | initialized = TRUE; | |
762 | } | |
763 | ||
764 | if (ld_elf_hints == NULL) | |
765 | return FALSE; | |
766 | ||
d5c8b1f8 AM |
767 | needed.by = l->by; |
768 | needed.name = l->name; | |
769 | return gld${EMULATION_NAME}_search_needed (ld_elf_hints, &needed, force); | |
ebe1fac1 NC |
770 | } |
771 | EOF | |
772 | # FreeBSD | |
773 | ;; | |
774 | ||
a5244b7e | 775 | *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*) |
92b93329 | 776 | fragment <<EOF |
04925e1e AM |
777 | /* For a native linker, check the file /etc/ld.so.conf for directories |
778 | in which we may find shared libraries. /etc/ld.so.conf is really | |
482e8b32 | 779 | only meaningful on Linux. */ |
04925e1e | 780 | |
d3989512 | 781 | struct gld${EMULATION_NAME}_ld_so_conf |
04925e1e | 782 | { |
d3989512 JJ |
783 | char *path; |
784 | size_t len, alloc; | |
785 | }; | |
04925e1e | 786 | |
dfcffada | 787 | static bfd_boolean |
d3989512 JJ |
788 | gld${EMULATION_NAME}_parse_ld_so_conf |
789 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename); | |
790 | ||
791 | static void | |
792 | gld${EMULATION_NAME}_parse_ld_so_conf_include | |
793 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename, | |
794 | const char *pattern) | |
795 | { | |
796 | char *newp = NULL; | |
0b48acfe | 797 | #ifdef HAVE_GLOB |
d3989512 | 798 | glob_t gl; |
0b48acfe | 799 | #endif |
d3989512 JJ |
800 | |
801 | if (pattern[0] != '/') | |
04925e1e | 802 | { |
d3989512 JJ |
803 | char *p = strrchr (filename, '/'); |
804 | size_t patlen = strlen (pattern) + 1; | |
04925e1e | 805 | |
d3989512 JJ |
806 | newp = xmalloc (p - filename + 1 + patlen); |
807 | memcpy (newp, filename, p - filename + 1); | |
808 | memcpy (newp + (p - filename + 1), pattern, patlen); | |
809 | pattern = newp; | |
810 | } | |
04925e1e | 811 | |
0b48acfe | 812 | #ifdef HAVE_GLOB |
d3989512 JJ |
813 | if (glob (pattern, 0, NULL, &gl) == 0) |
814 | { | |
815 | size_t i; | |
816 | ||
817 | for (i = 0; i < gl.gl_pathc; ++i) | |
818 | gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]); | |
819 | globfree (&gl); | |
820 | } | |
0b48acfe MM |
821 | #else |
822 | /* If we do not have glob, treat the pattern as a literal filename. */ | |
823 | gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern); | |
824 | #endif | |
d3989512 JJ |
825 | |
826 | if (newp) | |
827 | free (newp); | |
828 | } | |
829 | ||
dfcffada | 830 | static bfd_boolean |
d3989512 JJ |
831 | gld${EMULATION_NAME}_parse_ld_so_conf |
832 | (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename) | |
833 | { | |
834 | FILE *f = fopen (filename, FOPEN_RT); | |
563f4125 JJ |
835 | char *line; |
836 | size_t linelen; | |
d3989512 JJ |
837 | |
838 | if (f == NULL) | |
dfcffada | 839 | return FALSE; |
d3989512 | 840 | |
563f4125 JJ |
841 | linelen = 256; |
842 | line = xmalloc (linelen); | |
843 | do | |
d3989512 | 844 | { |
563f4125 JJ |
845 | char *p = line, *q; |
846 | ||
847 | /* Normally this would use getline(3), but we need to be portable. */ | |
848 | while ((q = fgets (p, linelen - (p - line), f)) != NULL | |
849 | && strlen (q) == linelen - (p - line) - 1 | |
850 | && line[linelen - 2] != '\n') | |
851 | { | |
852 | line = xrealloc (line, 2 * linelen); | |
853 | p = line + linelen - 1; | |
854 | linelen += linelen; | |
855 | } | |
856 | ||
857 | if (q == NULL && p == line) | |
858 | break; | |
d3989512 JJ |
859 | |
860 | p = strchr (line, '\n'); | |
861 | if (p) | |
862 | *p = '\0'; | |
863 | ||
864 | /* Because the file format does not know any form of quoting we | |
865 | can search forward for the next '#' character and if found | |
866 | make it terminating the line. */ | |
867 | p = strchr (line, '#'); | |
868 | if (p) | |
869 | *p = '\0'; | |
870 | ||
871 | /* Remove leading whitespace. NUL is no whitespace character. */ | |
872 | p = line; | |
873 | while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v') | |
874 | ++p; | |
875 | ||
876 | /* If the line is blank it is ignored. */ | |
877 | if (p[0] == '\0') | |
878 | continue; | |
04925e1e | 879 | |
0112cd26 | 880 | if (CONST_STRNEQ (p, "include") && (p[7] == ' ' || p[7] == '\t')) |
d3989512 JJ |
881 | { |
882 | char *dir, c; | |
883 | p += 8; | |
884 | do | |
04925e1e | 885 | { |
d3989512 JJ |
886 | while (*p == ' ' || *p == '\t') |
887 | ++p; | |
04925e1e | 888 | |
d3989512 JJ |
889 | if (*p == '\0') |
890 | break; | |
252b5132 | 891 | |
d3989512 JJ |
892 | dir = p; |
893 | ||
894 | while (*p != ' ' && *p != '\t' && *p) | |
895 | ++p; | |
896 | ||
897 | c = *p; | |
898 | *p++ = '\0'; | |
899 | if (dir[0] != '\0') | |
900 | gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename, | |
901 | dir); | |
902 | } | |
903 | while (c != '\0'); | |
904 | } | |
905 | else | |
906 | { | |
907 | char *dir = p; | |
908 | while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f' | |
909 | && *p != '\r' && *p != '\v') | |
910 | ++p; | |
911 | ||
912 | while (p != dir && p[-1] == '/') | |
913 | --p; | |
914 | if (info->path == NULL) | |
915 | { | |
916 | info->alloc = p - dir + 1 + 256; | |
917 | info->path = xmalloc (info->alloc); | |
918 | info->len = 0; | |
919 | } | |
04925e1e AM |
920 | else |
921 | { | |
d3989512 JJ |
922 | if (info->len + 1 + (p - dir) >= info->alloc) |
923 | { | |
924 | info->alloc += p - dir + 256; | |
925 | info->path = xrealloc (info->path, info->alloc); | |
926 | } | |
c76308d2 | 927 | info->path[info->len++] = config.rpath_separator; |
04925e1e | 928 | } |
d3989512 JJ |
929 | memcpy (info->path + info->len, dir, p - dir); |
930 | info->len += p - dir; | |
931 | info->path[info->len] = '\0'; | |
932 | } | |
933 | } | |
563f4125 | 934 | while (! feof (f)); |
d3989512 JJ |
935 | free (line); |
936 | fclose (f); | |
dfcffada | 937 | return TRUE; |
d3989512 | 938 | } |
252b5132 | 939 | |
d3989512 | 940 | static bfd_boolean |
d5c8b1f8 AM |
941 | gld${EMULATION_NAME}_check_ld_so_conf (const struct bfd_link_needed_list *l, |
942 | int force) | |
d3989512 JJ |
943 | { |
944 | static bfd_boolean initialized; | |
945 | static char *ld_so_conf; | |
946 | struct dt_needed needed; | |
252b5132 | 947 | |
d3989512 JJ |
948 | if (! initialized) |
949 | { | |
950 | char *tmppath; | |
951 | struct gld${EMULATION_NAME}_ld_so_conf info; | |
9c8ebd6a | 952 | |
d3989512 JJ |
953 | info.path = NULL; |
954 | info.len = info.alloc = 0; | |
ff7a0acf AM |
955 | tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf", |
956 | (const char *) NULL); | |
dfcffada AM |
957 | if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath)) |
958 | { | |
959 | free (tmppath); | |
ff7a0acf AM |
960 | tmppath = concat (ld_sysroot, "/etc/ld.so.conf", |
961 | (const char *) NULL); | |
dfcffada AM |
962 | gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath); |
963 | } | |
d3989512 | 964 | free (tmppath); |
dfcffada | 965 | |
d3989512 JJ |
966 | if (info.path) |
967 | { | |
968 | char *d = gld${EMULATION_NAME}_add_sysroot (info.path); | |
969 | free (info.path); | |
970 | ld_so_conf = d; | |
04925e1e | 971 | } |
b34976b6 | 972 | initialized = TRUE; |
04925e1e | 973 | } |
49e56c49 | 974 | |
04925e1e | 975 | if (ld_so_conf == NULL) |
b34976b6 | 976 | return FALSE; |
252b5132 | 977 | |
e56f61be | 978 | |
d5c8b1f8 AM |
979 | needed.by = l->by; |
980 | needed.name = l->name; | |
e56f61be | 981 | return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force); |
252b5132 RH |
982 | } |
983 | ||
04925e1e | 984 | EOF |
9c8ebd6a DJ |
985 | # Linux |
986 | ;; | |
04925e1e AM |
987 | esac |
988 | fi | |
92b93329 | 989 | fragment <<EOF |
04925e1e | 990 | |
252b5132 RH |
991 | /* See if an input file matches a DT_NEEDED entry by name. */ |
992 | ||
993 | static void | |
0c7a8e5a | 994 | gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s) |
252b5132 | 995 | { |
e13629bc AM |
996 | const char *soname; |
997 | ||
998 | /* Stop looking if we've found a loaded lib. */ | |
999 | if (global_found != NULL | |
1000 | && (bfd_elf_get_dyn_lib_class (global_found->the_bfd) | |
1001 | & DYN_AS_NEEDED) == 0) | |
252b5132 RH |
1002 | return; |
1003 | ||
e13629bc AM |
1004 | if (s->filename == NULL || s->the_bfd == NULL) |
1005 | return; | |
1006 | ||
1007 | /* Don't look for a second non-loaded as-needed lib. */ | |
1008 | if (global_found != NULL | |
1009 | && (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0) | |
7cedef86 AM |
1010 | return; |
1011 | ||
42627821 | 1012 | if (filename_cmp (s->filename, global_needed->name) == 0) |
252b5132 | 1013 | { |
e13629bc AM |
1014 | global_found = s; |
1015 | return; | |
1016 | } | |
577a0623 | 1017 | |
66be1055 | 1018 | if (s->flags.search_dirs) |
e13629bc AM |
1019 | { |
1020 | const char *f = strrchr (s->filename, '/'); | |
1021 | if (f != NULL | |
42627821 | 1022 | && filename_cmp (f + 1, global_needed->name) == 0) |
577a0623 | 1023 | { |
e13629bc | 1024 | global_found = s; |
577a0623 AM |
1025 | return; |
1026 | } | |
252b5132 RH |
1027 | } |
1028 | ||
e13629bc AM |
1029 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
1030 | if (soname != NULL | |
42627821 | 1031 | && filename_cmp (soname, global_needed->name) == 0) |
252b5132 | 1032 | { |
e13629bc AM |
1033 | global_found = s; |
1034 | return; | |
252b5132 | 1035 | } |
252b5132 RH |
1036 | } |
1037 | ||
41392f03 AM |
1038 | EOF |
1039 | ||
1040 | if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then | |
92b93329 | 1041 | fragment <<EOF |
04925e1e | 1042 | |
24382dca | 1043 | static bfd_size_type |
677e5a92 | 1044 | id_note_section_size (bfd *abfd ATTRIBUTE_UNUSED) |
24382dca | 1045 | { |
30e8ee25 | 1046 | const char *style = emit_note_gnu_build_id; |
24382dca | 1047 | bfd_size_type size; |
61e2488c | 1048 | bfd_size_type build_id_size; |
24382dca | 1049 | |
24382dca RM |
1050 | size = offsetof (Elf_External_Note, name[sizeof "GNU"]); |
1051 | size = (size + 3) & -(bfd_size_type) 4; | |
1052 | ||
61e2488c JT |
1053 | build_id_size = compute_build_id_size (style); |
1054 | if (build_id_size) | |
1055 | size += build_id_size; | |
24382dca RM |
1056 | else |
1057 | size = 0; | |
1058 | ||
1059 | return size; | |
1060 | } | |
1061 | ||
24382dca | 1062 | static bfd_boolean |
30e8ee25 | 1063 | write_build_id (bfd *abfd) |
24382dca RM |
1064 | { |
1065 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
30e8ee25 AM |
1066 | struct elf_obj_tdata *t = elf_tdata (abfd); |
1067 | const char *style; | |
24382dca RM |
1068 | asection *asec; |
1069 | Elf_Internal_Shdr *i_shdr; | |
1070 | unsigned char *contents, *id_bits; | |
1071 | bfd_size_type size; | |
30e8ee25 | 1072 | file_ptr position; |
24382dca RM |
1073 | Elf_External_Note *e_note; |
1074 | ||
c0355132 AM |
1075 | style = t->o->build_id.style; |
1076 | asec = t->o->build_id.sec; | |
83e4970b | 1077 | if (bfd_is_abs_section (asec->output_section)) |
24382dca | 1078 | { |
83e4970b AM |
1079 | einfo (_("%P: warning: .note.gnu.build-id section discarded," |
1080 | " --build-id ignored.\n")); | |
1081 | return TRUE; | |
24382dca RM |
1082 | } |
1083 | i_shdr = &elf_section_data (asec->output_section)->this_hdr; | |
1084 | ||
1085 | if (i_shdr->contents == NULL) | |
1086 | { | |
b2ff8454 | 1087 | if (asec->contents == NULL) |
1e9cc1c2 | 1088 | asec->contents = (unsigned char *) xmalloc (asec->size); |
b2ff8454 | 1089 | contents = asec->contents; |
24382dca | 1090 | } |
b2ff8454 RM |
1091 | else |
1092 | contents = i_shdr->contents + asec->output_offset; | |
24382dca | 1093 | |
1e9cc1c2 | 1094 | e_note = (Elf_External_Note *) contents; |
24382dca RM |
1095 | size = offsetof (Elf_External_Note, name[sizeof "GNU"]); |
1096 | size = (size + 3) & -(bfd_size_type) 4; | |
1097 | id_bits = contents + size; | |
1098 | size = asec->size - size; | |
1099 | ||
1100 | bfd_h_put_32 (abfd, sizeof "GNU", &e_note->namesz); | |
1101 | bfd_h_put_32 (abfd, size, &e_note->descsz); | |
1102 | bfd_h_put_32 (abfd, NT_GNU_BUILD_ID, &e_note->type); | |
1103 | memcpy (e_note->name, "GNU", sizeof "GNU"); | |
1104 | ||
61e2488c | 1105 | generate_build_id (abfd, style, bed->s->checksum_contents, id_bits, size); |
24382dca | 1106 | |
30e8ee25 | 1107 | position = i_shdr->sh_offset + asec->output_offset; |
b2ff8454 | 1108 | size = asec->size; |
30e8ee25 | 1109 | return (bfd_seek (abfd, position, SEEK_SET) == 0 |
b2ff8454 | 1110 | && bfd_bwrite (contents, size, abfd) == size); |
24382dca RM |
1111 | } |
1112 | ||
30e8ee25 AM |
1113 | /* Make .note.gnu.build-id section, and set up elf_tdata->build_id. */ |
1114 | ||
1115 | static bfd_boolean | |
1116 | setup_build_id (bfd *ibfd) | |
1117 | { | |
1118 | asection *s; | |
1119 | bfd_size_type size; | |
1120 | flagword flags; | |
1121 | ||
1122 | size = id_note_section_size (ibfd); | |
1123 | if (size == 0) | |
1124 | { | |
1125 | einfo ("%P: warning: unrecognized --build-id style ignored.\n"); | |
1126 | return FALSE; | |
1127 | } | |
1128 | ||
1129 | flags = (SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY | |
1130 | | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA); | |
1131 | s = bfd_make_section_with_flags (ibfd, ".note.gnu.build-id", flags); | |
1132 | if (s != NULL && bfd_set_section_alignment (ibfd, s, 2)) | |
1133 | { | |
1134 | struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd); | |
c0355132 AM |
1135 | t->o->build_id.after_write_object_contents = &write_build_id; |
1136 | t->o->build_id.style = emit_note_gnu_build_id; | |
1137 | t->o->build_id.sec = s; | |
1138 | elf_section_type (s) = SHT_NOTE; | |
1139 | s->size = size; | |
1140 | return TRUE; | |
30e8ee25 AM |
1141 | } |
1142 | ||
1143 | einfo ("%P: warning: Cannot create .note.gnu.build-id section," | |
1144 | " --build-id ignored.\n"); | |
1145 | return FALSE; | |
1146 | } | |
24382dca | 1147 | |
04925e1e | 1148 | /* This is called after all the input files have been opened. */ |
252b5132 RH |
1149 | |
1150 | static void | |
0c7a8e5a | 1151 | gld${EMULATION_NAME}_after_open (void) |
252b5132 | 1152 | { |
04925e1e | 1153 | struct bfd_link_needed_list *needed, *l; |
d10e7fcc AM |
1154 | struct elf_link_hash_table *htab; |
1155 | ||
5c3049d2 AM |
1156 | after_open_default (); |
1157 | ||
d10e7fcc AM |
1158 | htab = elf_hash_table (&link_info); |
1159 | if (!is_elf_hash_table (htab)) | |
1160 | return; | |
252b5132 | 1161 | |
76359541 TP |
1162 | if (command_line.out_implib_filename) |
1163 | { | |
1164 | unlink_if_ordinary (command_line.out_implib_filename); | |
1165 | link_info.out_implib_bfd | |
1166 | = bfd_openw (command_line.out_implib_filename, | |
1167 | bfd_get_target (link_info.output_bfd)); | |
1168 | ||
1169 | if (link_info.out_implib_bfd == NULL) | |
1170 | { | |
1171 | einfo ("%F%s: Can't open for writing: %E\n", | |
1172 | command_line.out_implib_filename); | |
1173 | } | |
1174 | } | |
1175 | ||
30e8ee25 | 1176 | if (emit_note_gnu_build_id != NULL) |
c0065db7 RM |
1177 | { |
1178 | bfd *abfd; | |
c0065db7 | 1179 | |
a654efd6 L |
1180 | /* Find an ELF input. */ |
1181 | for (abfd = link_info.input_bfds; | |
c72f2fb2 | 1182 | abfd != (bfd *) NULL; abfd = abfd->link.next) |
ca0694ad AM |
1183 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour |
1184 | && bfd_count_sections (abfd) != 0) | |
a654efd6 | 1185 | break; |
c0065db7 | 1186 | |
30e8ee25 AM |
1187 | /* PR 10555: If there are no ELF input files do not try to |
1188 | create a .note.gnu-build-id section. */ | |
1189 | if (abfd == NULL | |
1190 | || !setup_build_id (abfd)) | |
c0065db7 | 1191 | { |
30e8ee25 AM |
1192 | free ((char *) emit_note_gnu_build_id); |
1193 | emit_note_gnu_build_id = NULL; | |
c0065db7 RM |
1194 | } |
1195 | } | |
1196 | ||
0e1862bb | 1197 | if (bfd_link_relocatable (&link_info)) |
76f0cad6 NC |
1198 | { |
1199 | if (link_info.execstack == ! link_info.noexecstack) | |
1200 | /* PR ld/16744: If "-z [no]execstack" has been specified on the | |
1201 | command line and we are perfoming a relocatable link then no | |
1202 | PT_GNU_STACK segment will be created and so the | |
1203 | linkinfo.[no]execstack values set in _handle_option() will have no | |
1204 | effect. Instead we create a .note.GNU-stack section in much the | |
1205 | same way as the assembler does with its --[no]execstack option. */ | |
1206 | (void) bfd_make_section_with_flags (link_info.input_bfds, | |
1207 | ".note.GNU-stack", | |
1208 | SEC_READONLY | (link_info.execstack ? SEC_CODE : 0)); | |
1209 | ||
1210 | return; | |
1211 | } | |
d10e7fcc | 1212 | |
2f0c68f2 | 1213 | if (!link_info.traditional_format) |
eb3d5f3b | 1214 | { |
a654efd6 L |
1215 | bfd *abfd, *elfbfd = NULL; |
1216 | bfd_boolean warn_eh_frame = FALSE; | |
d10e7fcc | 1217 | asection *s; |
2f0c68f2 | 1218 | int seen_type = 0; |
eb3d5f3b | 1219 | |
c72f2fb2 | 1220 | for (abfd = link_info.input_bfds; abfd; abfd = abfd->link.next) |
eb3d5f3b | 1221 | { |
2f0c68f2 CM |
1222 | int type = 0; |
1223 | for (s = abfd->sections; s && type < COMPACT_EH_HDR; s = s->next) | |
4440bb77 | 1224 | { |
2f0c68f2 CM |
1225 | const char *name = bfd_get_section_name (abfd, s); |
1226 | ||
1227 | if (bfd_is_abs_section (s->output_section)) | |
1228 | continue; | |
1229 | if (CONST_STRNEQ (name, ".eh_frame_entry")) | |
1230 | type = COMPACT_EH_HDR; | |
1231 | else if (strcmp (name, ".eh_frame") == 0 && s->size > 8) | |
1232 | type = DWARF2_EH_HDR; | |
4440bb77 | 1233 | } |
2f0c68f2 CM |
1234 | |
1235 | if (type != 0) | |
1236 | { | |
1237 | if (seen_type == 0) | |
1238 | { | |
1239 | seen_type = type; | |
1240 | } | |
1241 | else if (seen_type != type) | |
1242 | { | |
1243 | einfo (_("%P%F: compact frame descriptions incompatible with" | |
1244 | " DWARF2 .eh_frame from %B\n"), | |
1245 | type == DWARF2_EH_HDR ? abfd : elfbfd); | |
1246 | break; | |
1247 | } | |
1248 | ||
1249 | if (!elfbfd | |
1250 | && (type == COMPACT_EH_HDR || link_info.eh_frame_hdr_type != 0)) | |
1251 | { | |
1252 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) | |
1253 | elfbfd = abfd; | |
1254 | ||
1255 | warn_eh_frame = TRUE; | |
1256 | } | |
1257 | } | |
1258 | ||
1259 | if (seen_type == COMPACT_EH_HDR) | |
1260 | link_info.eh_frame_hdr_type = COMPACT_EH_HDR; | |
1261 | ||
1262 | if (bfd_count_sections (abfd) == 0) | |
1263 | continue; | |
d10e7fcc | 1264 | } |
a654efd6 | 1265 | if (elfbfd) |
d10e7fcc AM |
1266 | { |
1267 | const struct elf_backend_data *bed; | |
1268 | ||
a654efd6 L |
1269 | bed = get_elf_backend_data (elfbfd); |
1270 | s = bfd_make_section_with_flags (elfbfd, ".eh_frame_hdr", | |
1271 | bed->dynamic_sec_flags | |
1272 | | SEC_READONLY); | |
d10e7fcc | 1273 | if (s != NULL |
a654efd6 L |
1274 | && bfd_set_section_alignment (elfbfd, s, 2)) |
1275 | { | |
1276 | htab->eh_info.hdr_sec = s; | |
1277 | warn_eh_frame = FALSE; | |
1278 | } | |
eb3d5f3b | 1279 | } |
a654efd6 L |
1280 | if (warn_eh_frame) |
1281 | einfo ("%P: warning: Cannot create .eh_frame_hdr section," | |
1282 | " --eh-frame-hdr ignored.\n"); | |
eb3d5f3b JB |
1283 | } |
1284 | ||
04925e1e AM |
1285 | /* Get the list of files which appear in DT_NEEDED entries in |
1286 | dynamic objects included in the link (often there will be none). | |
1287 | For each such file, we want to track down the corresponding | |
1288 | library, and include the symbol table in the link. This is what | |
1289 | the runtime dynamic linker will do. Tracking the files down here | |
1290 | permits one dynamic object to include another without requiring | |
1291 | special action by the person doing the link. Note that the | |
1292 | needed list can actually grow while we are stepping through this | |
1293 | loop. */ | |
f13a99db | 1294 | needed = bfd_elf_get_needed_list (link_info.output_bfd, &link_info); |
04925e1e | 1295 | for (l = needed; l != NULL; l = l->next) |
252b5132 | 1296 | { |
04925e1e | 1297 | struct bfd_link_needed_list *ll; |
e56f61be | 1298 | struct dt_needed n, nn; |
04925e1e | 1299 | int force; |
252b5132 | 1300 | |
7e9f0867 | 1301 | /* If the lib that needs this one was --as-needed and wasn't |
4706eab9 | 1302 | found to be needed, then this lib isn't needed either. */ |
7e9f0867 | 1303 | if (l->by != NULL |
4706eab9 AM |
1304 | && (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0) |
1305 | continue; | |
1306 | ||
1307 | /* Skip the lib if --no-copy-dt-needed-entries and | |
1308 | --allow-shlib-undefined is in effect. */ | |
1309 | if (l->by != NULL | |
1310 | && link_info.unresolved_syms_in_shared_libs == RM_IGNORE | |
1311 | && (bfd_elf_get_dyn_lib_class (l->by) & DYN_NO_ADD_NEEDED) != 0) | |
7e9f0867 AM |
1312 | continue; |
1313 | ||
04925e1e AM |
1314 | /* If we've already seen this file, skip it. */ |
1315 | for (ll = needed; ll != l; ll = ll->next) | |
7e9f0867 AM |
1316 | if ((ll->by == NULL |
1317 | || (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0) | |
1318 | && strcmp (ll->name, l->name) == 0) | |
04925e1e AM |
1319 | break; |
1320 | if (ll != l) | |
1321 | continue; | |
252b5132 | 1322 | |
04925e1e AM |
1323 | /* See if this file was included in the link explicitly. */ |
1324 | global_needed = l; | |
e13629bc | 1325 | global_found = NULL; |
04925e1e | 1326 | lang_for_each_input_file (gld${EMULATION_NAME}_check_needed); |
e13629bc AM |
1327 | if (global_found != NULL |
1328 | && (bfd_elf_get_dyn_lib_class (global_found->the_bfd) | |
1329 | & DYN_AS_NEEDED) == 0) | |
04925e1e | 1330 | continue; |
252b5132 | 1331 | |
e56f61be L |
1332 | n.by = l->by; |
1333 | n.name = l->name; | |
1334 | nn.by = l->by; | |
cd6f1cf3 | 1335 | if (verbose) |
ec4eb78a L |
1336 | info_msg (_("%s needed by %B\n"), l->name, l->by); |
1337 | ||
e13629bc AM |
1338 | /* As-needed libs specified on the command line (or linker script) |
1339 | take priority over libs found in search dirs. */ | |
1340 | if (global_found != NULL) | |
1341 | { | |
1342 | nn.name = global_found->filename; | |
1343 | if (gld${EMULATION_NAME}_try_needed (&nn, TRUE)) | |
1344 | continue; | |
1345 | } | |
1346 | ||
04925e1e AM |
1347 | /* We need to find this file and include the symbol table. We |
1348 | want to search for the file in the same way that the dynamic | |
1349 | linker will search. That means that we want to use | |
1350 | rpath_link, rpath, then the environment variable | |
ec4eb78a L |
1351 | LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH |
1352 | entries (native only), then the linker script LIB_SEARCH_DIRS. | |
1353 | We do not search using the -L arguments. | |
252b5132 | 1354 | |
04925e1e AM |
1355 | We search twice. The first time, we skip objects which may |
1356 | introduce version mismatches. The second time, we force | |
1357 | their use. See gld${EMULATION_NAME}_vercheck comment. */ | |
1358 | for (force = 0; force < 2; force++) | |
1359 | { | |
04925e1e AM |
1360 | size_t len; |
1361 | search_dirs_type *search; | |
6dd8c765 | 1362 | EOF |
ff925e69 | 1363 | if [ "x${NATIVE}" = xyes ] ; then |
92b93329 | 1364 | fragment <<EOF |
dcb0bd0e | 1365 | const char *lib_path; |
ff925e69 KK |
1366 | EOF |
1367 | fi | |
1368 | if [ "x${USE_LIBPATH}" = xyes ] ; then | |
92b93329 | 1369 | fragment <<EOF |
6dd8c765 L |
1370 | struct bfd_link_needed_list *rp; |
1371 | int found; | |
1372 | EOF | |
6dd8c765 | 1373 | fi |
92b93329 | 1374 | fragment <<EOF |
252b5132 | 1375 | |
04925e1e | 1376 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link, |
e56f61be | 1377 | &n, force)) |
04925e1e | 1378 | break; |
dcb0bd0e | 1379 | EOF |
9c8ebd6a | 1380 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
92b93329 | 1381 | fragment <<EOF |
04925e1e | 1382 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath, |
e56f61be | 1383 | &n, force)) |
04925e1e | 1384 | break; |
9c8ebd6a DJ |
1385 | EOF |
1386 | fi | |
1387 | if [ "x${NATIVE}" = xyes ] ; then | |
92b93329 | 1388 | fragment <<EOF |
04925e1e AM |
1389 | if (command_line.rpath_link == NULL |
1390 | && command_line.rpath == NULL) | |
1391 | { | |
1392 | lib_path = (const char *) getenv ("LD_RUN_PATH"); | |
e56f61be | 1393 | if (gld${EMULATION_NAME}_search_needed (lib_path, &n, |
04925e1e AM |
1394 | force)) |
1395 | break; | |
1396 | } | |
04925e1e | 1397 | lib_path = (const char *) getenv ("LD_LIBRARY_PATH"); |
e56f61be | 1398 | if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force)) |
04925e1e | 1399 | break; |
9c8ebd6a DJ |
1400 | EOF |
1401 | fi | |
1402 | if [ "x${USE_LIBPATH}" = xyes ] ; then | |
92b93329 | 1403 | fragment <<EOF |
ec4eb78a | 1404 | found = 0; |
f13a99db | 1405 | rp = bfd_elf_get_runpath_list (link_info.output_bfd, &link_info); |
6dd8c765 | 1406 | for (; !found && rp != NULL; rp = rp->next) |
ec4eb78a | 1407 | { |
3074964f AM |
1408 | const char *tmpname = rp->name; |
1409 | ||
1410 | if (IS_ABSOLUTE_PATH (tmpname)) | |
1411 | tmpname = gld${EMULATION_NAME}_add_sysroot (tmpname); | |
ec4eb78a | 1412 | found = (rp->by == l->by |
9c8ebd6a | 1413 | && gld${EMULATION_NAME}_search_needed (tmpname, |
e56f61be | 1414 | &n, |
ec4eb78a | 1415 | force)); |
3074964f AM |
1416 | if (tmpname != rp->name) |
1417 | free ((char *) tmpname); | |
ec4eb78a L |
1418 | } |
1419 | if (found) | |
1420 | break; | |
1421 | ||
04925e1e | 1422 | EOF |
04925e1e | 1423 | fi |
c1446dba L |
1424 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
1425 | case ${target} in | |
ebe1fac1 | 1426 | *-*-freebsd* | *-*-dragonfly*) |
92b93329 | 1427 | fragment <<EOF |
d5c8b1f8 | 1428 | if (gld${EMULATION_NAME}_check_ld_elf_hints (l, force)) |
ebe1fac1 NC |
1429 | break; |
1430 | EOF | |
1431 | # FreeBSD | |
1432 | ;; | |
1433 | ||
a5244b7e | 1434 | *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*) |
92b93329 | 1435 | fragment <<EOF |
d5c8b1f8 | 1436 | if (gld${EMULATION_NAME}_check_ld_so_conf (l, force)) |
c1446dba L |
1437 | break; |
1438 | ||
1439 | EOF | |
eeaa4577 | 1440 | # Linux |
c1446dba L |
1441 | ;; |
1442 | esac | |
1443 | fi | |
92b93329 | 1444 | fragment <<EOF |
04925e1e AM |
1445 | len = strlen (l->name); |
1446 | for (search = search_head; search != NULL; search = search->next) | |
1447 | { | |
1448 | char *filename; | |
252b5132 | 1449 | |
04925e1e AM |
1450 | if (search->cmdline) |
1451 | continue; | |
1452 | filename = (char *) xmalloc (strlen (search->name) + len + 2); | |
1453 | sprintf (filename, "%s/%s", search->name, l->name); | |
e56f61be L |
1454 | nn.name = filename; |
1455 | if (gld${EMULATION_NAME}_try_needed (&nn, force)) | |
04925e1e AM |
1456 | break; |
1457 | free (filename); | |
1458 | } | |
1459 | if (search != NULL) | |
1460 | break; | |
1461 | EOF | |
92b93329 | 1462 | fragment <<EOF |
04925e1e | 1463 | } |
252b5132 | 1464 | |
04925e1e AM |
1465 | if (force < 2) |
1466 | continue; | |
252b5132 | 1467 | |
e374f1d9 | 1468 | einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n", |
04925e1e AM |
1469 | l->name, l->by); |
1470 | } | |
2f0c68f2 CM |
1471 | |
1472 | if (link_info.eh_frame_hdr_type == COMPACT_EH_HDR) | |
1473 | if (bfd_elf_parse_eh_frame_entries (NULL, &link_info) == FALSE) | |
1474 | einfo (_("%P%F: Failed to parse EH frame entries.\n")); | |
04925e1e | 1475 | } |
252b5132 | 1476 | |
41392f03 AM |
1477 | EOF |
1478 | fi | |
1479 | ||
92b93329 | 1480 | fragment <<EOF |
252b5132 | 1481 | |
04925e1e | 1482 | /* Look through an expression for an assignment statement. */ |
252b5132 | 1483 | |
04925e1e | 1484 | static void |
0c7a8e5a | 1485 | gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp) |
04925e1e | 1486 | { |
4ea42fb7 | 1487 | bfd_boolean provide = FALSE; |
04925e1e AM |
1488 | |
1489 | switch (exp->type.node_class) | |
252b5132 | 1490 | { |
04925e1e | 1491 | case etree_provide: |
bded3693 | 1492 | case etree_provided: |
4ea42fb7 AM |
1493 | provide = TRUE; |
1494 | /* Fall thru */ | |
1495 | case etree_assign: | |
04925e1e AM |
1496 | /* We call record_link_assignment even if the symbol is defined. |
1497 | This is because if it is defined by a dynamic object, we | |
1498 | actually want to use the value defined by the linker script, | |
1499 | not the value from the dynamic object (because we are setting | |
1500 | symbols like etext). If the symbol is defined by a regular | |
1501 | object, then, as it happens, calling record_link_assignment | |
1502 | will do no harm. */ | |
04925e1e | 1503 | if (strcmp (exp->assign.dst, ".") != 0) |
252b5132 | 1504 | { |
f13a99db AM |
1505 | if (!bfd_elf_record_link_assignment (link_info.output_bfd, |
1506 | &link_info, | |
fe21a8fc L |
1507 | exp->assign.dst, provide, |
1508 | exp->assign.hidden)) | |
04925e1e AM |
1509 | einfo ("%P%F: failed to record assignment to %s: %E\n", |
1510 | exp->assign.dst); | |
252b5132 | 1511 | } |
04925e1e AM |
1512 | gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); |
1513 | break; | |
252b5132 | 1514 | |
04925e1e AM |
1515 | case etree_binary: |
1516 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); | |
1517 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); | |
1518 | break; | |
252b5132 | 1519 | |
04925e1e AM |
1520 | case etree_trinary: |
1521 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond); | |
1522 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); | |
1523 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); | |
1524 | break; | |
252b5132 | 1525 | |
04925e1e AM |
1526 | case etree_unary: |
1527 | gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); | |
1528 | break; | |
252b5132 | 1529 | |
04925e1e AM |
1530 | default: |
1531 | break; | |
252b5132 RH |
1532 | } |
1533 | } | |
1534 | ||
04925e1e AM |
1535 | |
1536 | /* This is called by the before_allocation routine via | |
1537 | lang_for_each_statement. It locates any assignment statements, and | |
1538 | tells the ELF backend about them, in case they are assignments to | |
1539 | symbols which are referred to by dynamic objects. */ | |
1540 | ||
1541 | static void | |
0c7a8e5a | 1542 | gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s) |
04925e1e AM |
1543 | { |
1544 | if (s->header.type == lang_assignment_statement_enum) | |
1545 | gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); | |
1546 | } | |
1547 | ||
41392f03 AM |
1548 | EOF |
1549 | ||
1550 | if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then | |
57e6abd2 AO |
1551 | if test x"${ELF_INTERPRETER_NAME+set}" = xset; then |
1552 | ELF_INTERPRETER_SET_DEFAULT=" | |
1553 | if (sinterp != NULL) | |
1554 | { | |
5718918d AM |
1555 | sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME}; |
1556 | sinterp->size = strlen ((char *) sinterp->contents) + 1; | |
57e6abd2 AO |
1557 | } |
1558 | ||
1559 | " | |
1560 | else | |
1561 | ELF_INTERPRETER_SET_DEFAULT= | |
1562 | fi | |
92b93329 | 1563 | fragment <<EOF |
04925e1e | 1564 | |
7ee314fa | 1565 | /* used by before_allocation and handle_option. */ |
4724d37e | 1566 | static void |
91d6fa6a | 1567 | gld${EMULATION_NAME}_append_to_separated_string (char **to, char *op_arg) |
7ee314fa AM |
1568 | { |
1569 | if (*to == NULL) | |
91d6fa6a | 1570 | *to = xstrdup (op_arg); |
7ee314fa AM |
1571 | else |
1572 | { | |
1573 | size_t to_len = strlen (*to); | |
91d6fa6a | 1574 | size_t op_arg_len = strlen (op_arg); |
7ee314fa AM |
1575 | char *buf; |
1576 | char *cp = *to; | |
1577 | ||
1578 | /* First see whether OPTARG is already in the path. */ | |
1579 | do | |
1580 | { | |
91d6fa6a NC |
1581 | if (strncmp (op_arg, cp, op_arg_len) == 0 |
1582 | && (cp[op_arg_len] == 0 | |
1583 | || cp[op_arg_len] == config.rpath_separator)) | |
7ee314fa AM |
1584 | /* We found it. */ |
1585 | break; | |
1586 | ||
1587 | /* Not yet found. */ | |
1588 | cp = strchr (cp, config.rpath_separator); | |
1589 | if (cp != NULL) | |
1590 | ++cp; | |
1591 | } | |
1592 | while (cp != NULL); | |
1593 | ||
1594 | if (cp == NULL) | |
1595 | { | |
91d6fa6a | 1596 | buf = xmalloc (to_len + op_arg_len + 2); |
7ee314fa | 1597 | sprintf (buf, "%s%c%s", *to, |
91d6fa6a | 1598 | config.rpath_separator, op_arg); |
7ee314fa AM |
1599 | free (*to); |
1600 | *to = buf; | |
1601 | } | |
1602 | } | |
1603 | } | |
1604 | ||
b6518b38 NC |
1605 | #if defined(__GNUC__) && GCC_VERSION < 4006 |
1606 | /* Work around a GCC uninitialized warning bug fixed in GCC 4.6. */ | |
1607 | static struct bfd_link_hash_entry ehdr_start_empty; | |
1608 | #endif | |
1609 | ||
252b5132 RH |
1610 | /* This is called after the sections have been attached to output |
1611 | sections, but before any sizes or addresses have been set. */ | |
1612 | ||
1613 | static void | |
0c7a8e5a | 1614 | gld${EMULATION_NAME}_before_allocation (void) |
252b5132 RH |
1615 | { |
1616 | const char *rpath; | |
1617 | asection *sinterp; | |
7ee314fa | 1618 | bfd *abfd; |
4199e3b8 | 1619 | struct elf_link_hash_entry *ehdr_start = NULL; |
a0bde398 L |
1620 | #if defined(__GNUC__) && GCC_VERSION < 4006 |
1621 | /* Work around a GCC uninitialized warning bug fixed in GCC 4.6. */ | |
b6518b38 | 1622 | struct bfd_link_hash_entry ehdr_start_save = ehdr_start_empty; |
a0bde398 | 1623 | #else |
4a0bc59e | 1624 | struct bfd_link_hash_entry ehdr_start_save; |
a0bde398 | 1625 | #endif |
252b5132 | 1626 | |
b4d040b1 | 1627 | if (is_elf_hash_table (link_info.hash)) |
a5382c42 MR |
1628 | { |
1629 | _bfd_elf_tls_setup (link_info.output_bfd, &link_info); | |
e1918d23 | 1630 | |
cde7cb01 MR |
1631 | /* Make __ehdr_start hidden if it has been referenced, to |
1632 | prevent the symbol from being dynamic. */ | |
0e1862bb | 1633 | if (!bfd_link_relocatable (&link_info)) |
c2763e27 RM |
1634 | { |
1635 | struct elf_link_hash_entry *h | |
1636 | = elf_link_hash_lookup (elf_hash_table (&link_info), "__ehdr_start", | |
1637 | FALSE, FALSE, TRUE); | |
1638 | ||
1639 | /* Only adjust the export class if the symbol was referenced | |
1640 | and not defined, otherwise leave it alone. */ | |
1641 | if (h != NULL | |
1642 | && (h->root.type == bfd_link_hash_new | |
1643 | || h->root.type == bfd_link_hash_undefined | |
1644 | || h->root.type == bfd_link_hash_undefweak | |
1645 | || h->root.type == bfd_link_hash_common)) | |
1646 | { | |
1647 | _bfd_elf_link_hash_hide_symbol (&link_info, h, TRUE); | |
1648 | if (ELF_ST_VISIBILITY (h->other) != STV_INTERNAL) | |
1649 | h->other = (h->other & ~ELF_ST_VISIBILITY (-1)) | STV_HIDDEN; | |
4199e3b8 AM |
1650 | /* Don't leave the symbol undefined. Undefined hidden |
1651 | symbols typically won't have dynamic relocations, but | |
1652 | we most likely will need dynamic relocations for | |
1653 | __ehdr_start if we are building a PIE or shared | |
1654 | library. */ | |
1655 | ehdr_start = h; | |
1656 | ehdr_start_save = h->root; | |
1657 | h->root.type = bfd_link_hash_defined; | |
1658 | h->root.u.def.section = bfd_abs_section_ptr; | |
1659 | h->root.u.def.value = 0; | |
c2763e27 RM |
1660 | } |
1661 | } | |
cde7cb01 | 1662 | |
a5382c42 MR |
1663 | /* If we are going to make any variable assignments, we need to |
1664 | let the ELF backend know about them in case the variables are | |
1665 | referred to by dynamic objects. */ | |
1666 | lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment); | |
1667 | } | |
252b5132 RH |
1668 | |
1669 | /* Let the ELF backend work out the sizes of any sections required | |
1670 | by dynamic linking. */ | |
1671 | rpath = command_line.rpath; | |
1672 | if (rpath == NULL) | |
1673 | rpath = (const char *) getenv ("LD_RUN_PATH"); | |
7ee314fa | 1674 | |
c72f2fb2 | 1675 | for (abfd = link_info.input_bfds; abfd; abfd = abfd->link.next) |
8dd881b6 L |
1676 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
1677 | { | |
1678 | const char *audit_libs = elf_dt_audit (abfd); | |
7ee314fa | 1679 | |
4724d37e | 1680 | /* If the input bfd contains an audit entry, we need to add it as |
8dd881b6 L |
1681 | a dep audit entry. */ |
1682 | if (audit_libs && *audit_libs != '\0') | |
1683 | { | |
1684 | char *cp = xstrdup (audit_libs); | |
1685 | do | |
1686 | { | |
1687 | int more = 0; | |
1688 | char *cp2 = strchr (cp, config.rpath_separator); | |
7ee314fa | 1689 | |
8dd881b6 L |
1690 | if (cp2) |
1691 | { | |
1692 | *cp2 = '\0'; | |
1693 | more = 1; | |
1694 | } | |
7ee314fa | 1695 | |
8dd881b6 L |
1696 | if (cp != NULL && *cp != '\0') |
1697 | gld${EMULATION_NAME}_append_to_separated_string (&depaudit, cp); | |
1698 | ||
1699 | cp = more ? ++cp2 : NULL; | |
1700 | } | |
1701 | while (cp != NULL); | |
1702 | } | |
1703 | } | |
7ee314fa | 1704 | |
5a580b3a | 1705 | if (! (bfd_elf_size_dynamic_sections |
f13a99db | 1706 | (link_info.output_bfd, command_line.soname, rpath, |
7ee314fa | 1707 | command_line.filter_shlib, audit, depaudit, |
252b5132 | 1708 | (const char * const *) command_line.auxiliary_filters, |
fd91d419 | 1709 | &link_info, &sinterp))) |
252b5132 | 1710 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); |
8423293d | 1711 | |
57e6abd2 | 1712 | ${ELF_INTERPRETER_SET_DEFAULT} |
252b5132 RH |
1713 | /* Let the user override the dynamic linker we are using. */ |
1714 | if (command_line.interpreter != NULL | |
1715 | && sinterp != NULL) | |
1716 | { | |
1717 | sinterp->contents = (bfd_byte *) command_line.interpreter; | |
eea6121a | 1718 | sinterp->size = strlen (command_line.interpreter) + 1; |
252b5132 RH |
1719 | } |
1720 | ||
1721 | /* Look for any sections named .gnu.warning. As a GNU extensions, | |
1722 | we treat such sections as containing warning messages. We print | |
1723 | out the warning message, and then zero out the section size so | |
1724 | that it does not get copied into the output file. */ | |
1725 | ||
1726 | { | |
1727 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
1728 | { | |
1729 | asection *s; | |
1730 | bfd_size_type sz; | |
1731 | char *msg; | |
252b5132 | 1732 | |
66be1055 | 1733 | if (is->flags.just_syms) |
252b5132 RH |
1734 | continue; |
1735 | ||
1736 | s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning"); | |
1737 | if (s == NULL) | |
1738 | continue; | |
1739 | ||
eea6121a | 1740 | sz = s->size; |
1e9cc1c2 | 1741 | msg = (char *) xmalloc ((size_t) (sz + 1)); |
bc251d50 | 1742 | if (! bfd_get_section_contents (is->the_bfd, s, msg, |
8c675694 | 1743 | (file_ptr) 0, sz)) |
252b5132 RH |
1744 | einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n", |
1745 | is->the_bfd); | |
bc251d50 | 1746 | msg[sz] = '\0'; |
1a72702b AM |
1747 | (*link_info.callbacks->warning) (&link_info, msg, |
1748 | (const char *) NULL, is->the_bfd, | |
1749 | (asection *) NULL, (bfd_vma) 0); | |
252b5132 RH |
1750 | free (msg); |
1751 | ||
9e3be61d AM |
1752 | /* Clobber the section size, so that we don't waste space |
1753 | copying the warning into the output file. If we've already | |
1754 | sized the output section, adjust its size. The adjustment | |
1755 | is on rawsize because targets that size sections early will | |
1756 | have called lang_reset_memory_regions after sizing. */ | |
1757 | if (s->output_section != NULL | |
1758 | && s->output_section->rawsize >= s->size) | |
1759 | s->output_section->rawsize -= s->size; | |
1760 | ||
eea6121a | 1761 | s->size = 0; |
11d2f718 | 1762 | |
9e3be61d AM |
1763 | /* Also set SEC_EXCLUDE, so that local symbols defined in the |
1764 | warning section don't get copied to the output. */ | |
a14a5de3 | 1765 | s->flags |= SEC_EXCLUDE | SEC_KEEP; |
252b5132 RH |
1766 | } |
1767 | } | |
8423293d | 1768 | |
1e035701 | 1769 | before_allocation_default (); |
8423293d | 1770 | |
f13a99db | 1771 | if (!bfd_elf_size_dynsym_hash_dynstr (link_info.output_bfd, &link_info)) |
8423293d | 1772 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); |
4199e3b8 AM |
1773 | |
1774 | if (ehdr_start != NULL) | |
1775 | { | |
1776 | /* If we twiddled __ehdr_start to defined earlier, put it back | |
1777 | as it was. */ | |
1778 | ehdr_start->root.type = ehdr_start_save.type; | |
1779 | ehdr_start->root.u = ehdr_start_save.u; | |
1780 | } | |
252b5132 RH |
1781 | } |
1782 | ||
41392f03 AM |
1783 | EOF |
1784 | fi | |
1785 | ||
1786 | if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then | |
92b93329 | 1787 | fragment <<EOF |
252b5132 | 1788 | |
04925e1e AM |
1789 | /* Try to open a dynamic archive. This is where we know that ELF |
1790 | dynamic libraries have an extension of .so (or .sl on oddball systems | |
1791 | like hpux). */ | |
1792 | ||
b34976b6 | 1793 | static bfd_boolean |
0c7a8e5a AM |
1794 | gld${EMULATION_NAME}_open_dynamic_archive |
1795 | (const char *arch, search_dirs_type *search, lang_input_statement_type *entry) | |
252b5132 | 1796 | { |
04925e1e AM |
1797 | const char *filename; |
1798 | char *string; | |
d4ae5fb0 AM |
1799 | size_t len; |
1800 | bfd_boolean opened = FALSE; | |
252b5132 | 1801 | |
66be1055 | 1802 | if (! entry->flags.maybe_archive) |
b34976b6 | 1803 | return FALSE; |
252b5132 | 1804 | |
04925e1e | 1805 | filename = entry->filename; |
d4ae5fb0 AM |
1806 | len = strlen (search->name) + strlen (filename); |
1807 | if (entry->flags.full_name_provided) | |
1808 | { | |
1809 | len += sizeof "/"; | |
1810 | string = (char *) xmalloc (len); | |
1811 | sprintf (string, "%s/%s", search->name, filename); | |
1812 | } | |
1813 | else | |
1814 | { | |
1815 | size_t xlen = 0; | |
252b5132 | 1816 | |
d4ae5fb0 | 1817 | len += strlen (arch) + sizeof "/lib.so"; |
04925e1e | 1818 | #ifdef EXTRA_SHLIB_EXTENSION |
d4ae5fb0 AM |
1819 | xlen = (strlen (EXTRA_SHLIB_EXTENSION) > 3 |
1820 | ? strlen (EXTRA_SHLIB_EXTENSION) - 3 | |
1821 | : 0); | |
04925e1e | 1822 | #endif |
d4ae5fb0 AM |
1823 | string = (char *) xmalloc (len + xlen); |
1824 | sprintf (string, "%s/lib%s%s.so", search->name, filename, arch); | |
04925e1e | 1825 | #ifdef EXTRA_SHLIB_EXTENSION |
d4ae5fb0 AM |
1826 | /* Try the .so extension first. If that fails build a new filename |
1827 | using EXTRA_SHLIB_EXTENSION. */ | |
1828 | opened = ldfile_try_open_bfd (string, entry); | |
1829 | if (!opened) | |
1830 | strcpy (string + len - 4, EXTRA_SHLIB_EXTENSION); | |
04925e1e | 1831 | #endif |
d4ae5fb0 | 1832 | } |
04925e1e | 1833 | |
d4ae5fb0 | 1834 | if (!opened && !ldfile_try_open_bfd (string, entry)) |
252b5132 | 1835 | { |
04925e1e | 1836 | free (string); |
b34976b6 | 1837 | return FALSE; |
04925e1e | 1838 | } |
252b5132 | 1839 | |
04925e1e | 1840 | entry->filename = string; |
252b5132 | 1841 | |
04925e1e AM |
1842 | /* We have found a dynamic object to include in the link. The ELF |
1843 | backend linker will create a DT_NEEDED entry in the .dynamic | |
1844 | section naming this file. If this file includes a DT_SONAME | |
1845 | entry, it will be used. Otherwise, the ELF linker will just use | |
1846 | the name of the file. For an archive found by searching, like | |
1847 | this one, the DT_NEEDED entry should consist of just the name of | |
1848 | the file, without the path information used to find it. Note | |
1849 | that we only need to do this if we have a dynamic object; an | |
1850 | archive will never be referenced by a DT_NEEDED entry. | |
252b5132 | 1851 | |
04925e1e AM |
1852 | FIXME: This approach--using bfd_elf_set_dt_needed_name--is not |
1853 | very pretty. I haven't been able to think of anything that is | |
1854 | pretty, though. */ | |
1855 | if (bfd_check_format (entry->the_bfd, bfd_object) | |
1856 | && (entry->the_bfd->flags & DYNAMIC) != 0) | |
1857 | { | |
66be1055 | 1858 | ASSERT (entry->flags.maybe_archive && entry->flags.search_dirs); |
252b5132 | 1859 | |
04925e1e | 1860 | /* Rather than duplicating the logic above. Just use the |
1c9acd94 | 1861 | filename we recorded earlier. */ |
04925e1e | 1862 | |
d4ae5fb0 AM |
1863 | if (!entry->flags.full_name_provided) |
1864 | filename = lbasename (entry->filename); | |
1c9acd94 | 1865 | bfd_elf_set_dt_needed_name (entry->the_bfd, filename); |
04925e1e AM |
1866 | } |
1867 | ||
b34976b6 | 1868 | return TRUE; |
04925e1e AM |
1869 | } |
1870 | ||
41392f03 AM |
1871 | EOF |
1872 | fi | |
cde43e70 AM |
1873 | |
1874 | if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then | |
92b93329 | 1875 | fragment <<EOF |
41392f03 | 1876 | |
afd7a018 | 1877 | /* A variant of lang_output_section_find used by place_orphan. */ |
04925e1e | 1878 | |
04925e1e | 1879 | static lang_output_section_statement_type * |
2a36a117 | 1880 | output_rel_find (asection *sec, int isdyn) |
04925e1e | 1881 | { |
04925e1e | 1882 | lang_output_section_statement_type *lookup; |
ba493122 | 1883 | lang_output_section_statement_type *last = NULL; |
2a36a117 | 1884 | lang_output_section_statement_type *last_alloc = NULL; |
48f2ff54 | 1885 | lang_output_section_statement_type *last_ro_alloc = NULL; |
ba493122 AM |
1886 | lang_output_section_statement_type *last_rel = NULL; |
1887 | lang_output_section_statement_type *last_rel_alloc = NULL; | |
24cdb50a | 1888 | int rela = sec->name[4] == 'a'; |
04925e1e | 1889 | |
afd7a018 AM |
1890 | for (lookup = &lang_output_section_statement.head->output_section_statement; |
1891 | lookup != NULL; | |
1892 | lookup = lookup->next) | |
04925e1e | 1893 | { |
66c103b7 | 1894 | if (lookup->constraint >= 0 |
0112cd26 | 1895 | && CONST_STRNEQ (lookup->name, ".rel")) |
04925e1e | 1896 | { |
24cdb50a | 1897 | int lookrela = lookup->name[4] == 'a'; |
ba493122 | 1898 | |
2a36a117 AM |
1899 | /* .rel.dyn must come before all other reloc sections, to suit |
1900 | GNU ld.so. */ | |
1901 | if (isdyn) | |
1902 | break; | |
1903 | ||
1904 | /* Don't place after .rel.plt as doing so results in wrong | |
1905 | dynamic tags. */ | |
1906 | if (strcmp (".plt", lookup->name + 4 + lookrela) == 0) | |
ba493122 | 1907 | break; |
2a36a117 AM |
1908 | |
1909 | if (rela == lookrela || last_rel == NULL) | |
24cdb50a | 1910 | last_rel = lookup; |
2a36a117 AM |
1911 | if ((rela == lookrela || last_rel_alloc == NULL) |
1912 | && lookup->bfd_section != NULL | |
ba493122 AM |
1913 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) |
1914 | last_rel_alloc = lookup; | |
04925e1e | 1915 | } |
2a36a117 AM |
1916 | |
1917 | last = lookup; | |
1918 | if (lookup->bfd_section != NULL | |
1919 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) | |
48f2ff54 AM |
1920 | { |
1921 | last_alloc = lookup; | |
1922 | if ((lookup->bfd_section->flags & SEC_READONLY) != 0) | |
1923 | last_ro_alloc = lookup; | |
1924 | } | |
252b5132 | 1925 | } |
ba493122 AM |
1926 | |
1927 | if (last_rel_alloc) | |
1928 | return last_rel_alloc; | |
1929 | ||
1930 | if (last_rel) | |
1931 | return last_rel; | |
1932 | ||
48f2ff54 AM |
1933 | if (last_ro_alloc) |
1934 | return last_ro_alloc; | |
1935 | ||
2a36a117 AM |
1936 | if (last_alloc) |
1937 | return last_alloc; | |
1938 | ||
ba493122 | 1939 | return last; |
252b5132 RH |
1940 | } |
1941 | ||
1942 | /* Place an orphan section. We use this to put random SHF_ALLOC | |
1943 | sections in the right segment. */ | |
1944 | ||
c2edb4b8 | 1945 | static lang_output_section_statement_type * |
8a99a385 AM |
1946 | gld${EMULATION_NAME}_place_orphan (asection *s, |
1947 | const char *secname, | |
1948 | int constraint) | |
252b5132 | 1949 | { |
afd7a018 AM |
1950 | static struct orphan_save hold[] = |
1951 | { | |
1952 | { ".text", | |
1953 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE, | |
1954 | 0, 0, 0, 0 }, | |
1955 | { ".rodata", | |
1956 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1957 | 0, 0, 0, 0 }, | |
d85e71fe L |
1958 | { ".tdata", |
1959 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_THREAD_LOCAL, | |
1960 | 0, 0, 0, 0 }, | |
afd7a018 AM |
1961 | { ".data", |
1962 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA, | |
1963 | 0, 0, 0, 0 }, | |
1964 | { ".bss", | |
1965 | SEC_ALLOC, | |
1966 | 0, 0, 0, 0 }, | |
1967 | { 0, | |
1968 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1969 | 0, 0, 0, 0 }, | |
1970 | { ".interp", | |
1971 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA, | |
1972 | 0, 0, 0, 0 }, | |
1973 | { ".sdata", | |
1974 | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA, | |
07890c07 | 1975 | 0, 0, 0, 0 }, |
175b7cd4 | 1976 | { ".comment", |
07890c07 AM |
1977 | SEC_HAS_CONTENTS, |
1978 | 0, 0, 0, 0 }, | |
afd7a018 AM |
1979 | }; |
1980 | enum orphan_save_index | |
1981 | { | |
1982 | orphan_text = 0, | |
1983 | orphan_rodata, | |
d85e71fe | 1984 | orphan_tdata, |
afd7a018 AM |
1985 | orphan_data, |
1986 | orphan_bss, | |
1987 | orphan_rel, | |
1988 | orphan_interp, | |
07890c07 AM |
1989 | orphan_sdata, |
1990 | orphan_nonalloc | |
afd7a018 AM |
1991 | }; |
1992 | static int orphan_init_done = 0; | |
6a345e87 | 1993 | struct orphan_save *place; |
afd7a018 | 1994 | lang_output_section_statement_type *after; |
252b5132 | 1995 | lang_output_section_statement_type *os; |
b5f14a6d | 1996 | lang_output_section_statement_type *match_by_name = NULL; |
24cdb50a | 1997 | int isdyn = 0; |
ecca9871 L |
1998 | int iself = s->owner->xvec->flavour == bfd_target_elf_flavour; |
1999 | unsigned int sh_type = iself ? elf_section_type (s) : SHT_NULL; | |
199af150 AM |
2000 | flagword flags; |
2001 | asection *nexts; | |
252b5132 | 2002 | |
0e1862bb | 2003 | if (!bfd_link_relocatable (&link_info) |
24cdb50a | 2004 | && link_info.combreloc |
ecca9871 | 2005 | && (s->flags & SEC_ALLOC)) |
24cdb50a | 2006 | { |
ecca9871 L |
2007 | if (iself) |
2008 | switch (sh_type) | |
2009 | { | |
2010 | case SHT_RELA: | |
2011 | secname = ".rela.dyn"; | |
2012 | isdyn = 1; | |
2013 | break; | |
2014 | case SHT_REL: | |
2015 | secname = ".rel.dyn"; | |
2016 | isdyn = 1; | |
2017 | break; | |
2018 | default: | |
2019 | break; | |
2020 | } | |
0112cd26 | 2021 | else if (CONST_STRNEQ (secname, ".rel")) |
ecca9871 L |
2022 | { |
2023 | secname = secname[4] == 'a' ? ".rela.dyn" : ".rel.dyn"; | |
2024 | isdyn = 1; | |
2025 | } | |
24cdb50a | 2026 | } |
aea4bd9d | 2027 | |
bcacc0f5 | 2028 | /* Look through the script to see where to place this section. */ |
d127ecce AM |
2029 | if (constraint == 0) |
2030 | for (os = lang_output_section_find (secname); | |
2031 | os != NULL; | |
2032 | os = next_matching_output_section_statement (os, 0)) | |
2033 | { | |
2034 | /* If we don't match an existing output section, tell | |
2035 | lang_insert_orphan to create a new output section. */ | |
2036 | constraint = SPECIAL; | |
2037 | ||
93dc595d L |
2038 | /* SEC_EXCLUDE is cleared when doing a relocatable link. But |
2039 | we can't merge 2 input sections with the same name when only | |
2040 | one of them has SHF_EXCLUDE. */ | |
d127ecce AM |
2041 | if (os->bfd_section != NULL |
2042 | && (os->bfd_section->flags == 0 | |
93dc595d L |
2043 | || ((!bfd_link_relocatable (&link_info) |
2044 | || (((elf_section_flags (s) | |
2045 | ^ elf_section_flags (os->bfd_section)) | |
2046 | & SHF_EXCLUDE) == 0)) | |
2047 | && ((s->flags ^ os->bfd_section->flags) | |
199af150 AM |
2048 | & (SEC_LOAD | SEC_ALLOC)) == 0 |
2049 | && _bfd_elf_match_sections_by_type (link_info.output_bfd, | |
2050 | os->bfd_section, | |
2051 | s->owner, s)))) | |
d127ecce AM |
2052 | { |
2053 | /* We already have an output section statement with this | |
2054 | name, and its bfd section has compatible flags. | |
2055 | If the section already exists but does not have any flags | |
2056 | set, then it has been created by the linker, probably as a | |
2057 | result of a --section-start command line switch. */ | |
b9c361e0 | 2058 | lang_add_section (&os->children, s, NULL, os); |
d127ecce AM |
2059 | return os; |
2060 | } | |
b5f14a6d DD |
2061 | |
2062 | /* Save unused output sections in case we can match them | |
2063 | against orphans later. */ | |
2064 | if (os->bfd_section == NULL) | |
2065 | match_by_name = os; | |
d127ecce | 2066 | } |
252b5132 | 2067 | |
b5f14a6d DD |
2068 | /* If we didn't match an active output section, see if we matched an |
2069 | unused one and use that. */ | |
2070 | if (match_by_name) | |
2071 | { | |
b9c361e0 | 2072 | lang_add_section (&match_by_name->children, s, NULL, match_by_name); |
b5f14a6d DD |
2073 | return match_by_name; |
2074 | } | |
2075 | ||
afd7a018 AM |
2076 | if (!orphan_init_done) |
2077 | { | |
2078 | struct orphan_save *ho; | |
07890c07 | 2079 | |
afd7a018 AM |
2080 | for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho) |
2081 | if (ho->name != NULL) | |
2082 | { | |
2083 | ho->os = lang_output_section_find (ho->name); | |
2084 | if (ho->os != NULL && ho->os->flags == 0) | |
2085 | ho->os->flags = ho->flags; | |
2086 | } | |
2087 | orphan_init_done = 1; | |
2088 | } | |
252b5132 RH |
2089 | |
2090 | /* If this is a final link, then always put .gnu.warning.SYMBOL | |
2091 | sections into the .text section to get them out of the way. */ | |
0e1862bb | 2092 | if (bfd_link_executable (&link_info) |
bcacc0f5 | 2093 | && CONST_STRNEQ (s->name, ".gnu.warning.") |
afd7a018 | 2094 | && hold[orphan_text].os != NULL) |
252b5132 | 2095 | { |
c2edb4b8 | 2096 | os = hold[orphan_text].os; |
b9c361e0 | 2097 | lang_add_section (&os->children, s, NULL, os); |
c2edb4b8 | 2098 | return os; |
252b5132 RH |
2099 | } |
2100 | ||
077fcd6a L |
2101 | flags = s->flags; |
2102 | if (!bfd_link_relocatable (&link_info)) | |
2103 | { | |
2104 | nexts = s; | |
2105 | while ((nexts = bfd_get_next_section_by_name (nexts->owner, nexts)) | |
2106 | != NULL) | |
2107 | if (nexts->output_section == NULL | |
2108 | && (nexts->flags & SEC_EXCLUDE) == 0 | |
2109 | && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0 | |
2110 | && (nexts->owner->flags & DYNAMIC) == 0 | |
2111 | && nexts->owner->usrdata != NULL | |
2112 | && !(((lang_input_statement_type *) nexts->owner->usrdata) | |
2113 | ->flags.just_syms) | |
2114 | && _bfd_elf_match_sections_by_type (nexts->owner, nexts, | |
2115 | s->owner, s)) | |
2116 | flags = (((flags ^ SEC_READONLY) | |
2117 | | (nexts->flags ^ SEC_READONLY)) | |
2118 | ^ SEC_READONLY); | |
2119 | } | |
2120 | ||
252b5132 RH |
2121 | /* Decide which segment the section should go in based on the |
2122 | section name and section flags. We put loadable .note sections | |
2123 | right after the .interp section, so that the PT_NOTE segment is | |
2124 | stored right after the program headers where the OS can read it | |
2125 | in the first page. */ | |
aea4bd9d | 2126 | |
71bfc0ae | 2127 | place = NULL; |
199af150 | 2128 | if ((flags & (SEC_ALLOC | SEC_DEBUGGING)) == 0) |
07890c07 | 2129 | place = &hold[orphan_nonalloc]; |
199af150 | 2130 | else if ((flags & SEC_ALLOC) == 0) |
71bfc0ae | 2131 | ; |
199af150 | 2132 | else if ((flags & SEC_LOAD) != 0 |
ecca9871 | 2133 | && ((iself && sh_type == SHT_NOTE) |
0112cd26 | 2134 | || (!iself && CONST_STRNEQ (secname, ".note")))) |
afd7a018 | 2135 | place = &hold[orphan_interp]; |
199af150 | 2136 | else if ((flags & (SEC_LOAD | SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) == 0) |
afd7a018 | 2137 | place = &hold[orphan_bss]; |
199af150 | 2138 | else if ((flags & SEC_SMALL_DATA) != 0) |
afd7a018 | 2139 | place = &hold[orphan_sdata]; |
199af150 | 2140 | else if ((flags & SEC_THREAD_LOCAL) != 0) |
d85e71fe | 2141 | place = &hold[orphan_tdata]; |
199af150 | 2142 | else if ((flags & SEC_READONLY) == 0) |
afd7a018 | 2143 | place = &hold[orphan_data]; |
ecca9871 | 2144 | else if (((iself && (sh_type == SHT_RELA || sh_type == SHT_REL)) |
0112cd26 | 2145 | || (!iself && CONST_STRNEQ (secname, ".rel"))) |
199af150 | 2146 | && (flags & SEC_LOAD) != 0) |
afd7a018 | 2147 | place = &hold[orphan_rel]; |
199af150 | 2148 | else if ((flags & SEC_CODE) == 0) |
afd7a018 AM |
2149 | place = &hold[orphan_rodata]; |
2150 | else | |
2151 | place = &hold[orphan_text]; | |
71bfc0ae | 2152 | |
afd7a018 | 2153 | after = NULL; |
5ba47421 | 2154 | if (place != NULL) |
252b5132 | 2155 | { |
afd7a018 | 2156 | if (place->os == NULL) |
5ba47421 | 2157 | { |
afd7a018 AM |
2158 | if (place->name != NULL) |
2159 | place->os = lang_output_section_find (place->name); | |
2160 | else | |
2161 | place->os = output_rel_find (s, isdyn); | |
5ba47421 | 2162 | } |
afd7a018 AM |
2163 | after = place->os; |
2164 | if (after == NULL) | |
93638471 AM |
2165 | after |
2166 | = lang_output_section_find_by_flags (s, flags, &place->os, | |
2167 | _bfd_elf_match_sections_by_type); | |
afd7a018 AM |
2168 | if (after == NULL) |
2169 | /* *ABS* is always the first output section statement. */ | |
2170 | after = &lang_output_section_statement.head->output_section_statement; | |
252b5132 RH |
2171 | } |
2172 | ||
c2edb4b8 | 2173 | return lang_insert_orphan (s, secname, constraint, after, place, NULL, NULL); |
252b5132 | 2174 | } |
c56feb2b AM |
2175 | EOF |
2176 | fi | |
2177 | ||
eaeb0a9d | 2178 | if test x"$LDEMUL_AFTER_ALLOCATION" != xgld"$EMULATION_NAME"_after_allocation; then |
92b93329 | 2179 | fragment <<EOF |
252b5132 | 2180 | |
deb04cdb | 2181 | static void |
eaeb0a9d | 2182 | gld${EMULATION_NAME}_after_allocation (void) |
deb04cdb | 2183 | { |
75938853 AM |
2184 | int need_layout = bfd_elf_discard_info (link_info.output_bfd, &link_info); |
2185 | ||
2186 | if (need_layout < 0) | |
2187 | einfo ("%X%P: .eh_frame/.stab edit: %E\n"); | |
2188 | else | |
2189 | gld${EMULATION_NAME}_map_segments (need_layout); | |
73d074b4 | 2190 | } |
41392f03 AM |
2191 | EOF |
2192 | fi | |
2193 | ||
2194 | if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then | |
92b93329 | 2195 | fragment <<EOF |
252b5132 RH |
2196 | |
2197 | static char * | |
0c7a8e5a | 2198 | gld${EMULATION_NAME}_get_script (int *isfile) |
252b5132 RH |
2199 | EOF |
2200 | ||
7225345d | 2201 | if test x"$COMPILE_IN" = xyes |
252b5132 RH |
2202 | then |
2203 | # Scripts compiled in. | |
2204 | ||
2205 | # sed commands to quote an ld script as a C string. | |
597e2591 | 2206 | sc="-f stringify.sed" |
252b5132 | 2207 | |
92b93329 | 2208 | fragment <<EOF |
60bcf0fa | 2209 | { |
252b5132 RH |
2210 | *isfile = 0; |
2211 | ||
0e1862bb | 2212 | if (bfd_link_relocatable (&link_info) && config.build_constructors) |
597e2591 | 2213 | return |
252b5132 | 2214 | EOF |
afd7a018 | 2215 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c |
0e1862bb | 2216 | echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c |
afd7a018 AM |
2217 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c |
2218 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c | |
2219 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c | |
61585df2 | 2220 | if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else |
afd7a018 AM |
2221 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c |
2222 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c | |
db6751f2 | 2223 | fi |
36af4a4e JJ |
2224 | if test -n "$GENERATE_PIE_SCRIPT" ; then |
2225 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
0e1862bb L |
2226 | echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c |
2227 | echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c | |
2228 | echo ' && link_info.relro' >> e${EMULATION_NAME}.c | |
fbfca19e | 2229 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2230 | sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c |
0e1862bb L |
2231 | echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c |
2232 | echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c | |
afd7a018 | 2233 | sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c |
36af4a4e | 2234 | fi |
0e1862bb | 2235 | echo ' ; else if (bfd_link_pie (&link_info)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2236 | sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c |
36af4a4e | 2237 | fi |
252b5132 | 2238 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then |
82434356 | 2239 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then |
0e1862bb | 2240 | echo ' ; else if (bfd_link_dll (&link_info) && link_info.combreloc' >> e${EMULATION_NAME}.c |
8c37241b | 2241 | echo ' && link_info.relro' >> e${EMULATION_NAME}.c |
fbfca19e | 2242 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2243 | sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c |
0e1862bb | 2244 | echo ' ; else if (bfd_link_dll (&link_info) && link_info.combreloc) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2245 | sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c |
82434356 | 2246 | fi |
0e1862bb | 2247 | echo ' ; else if (bfd_link_dll (&link_info)) return' >> e${EMULATION_NAME}.c |
afd7a018 | 2248 | sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c |
252b5132 | 2249 | fi |
82434356 | 2250 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then |
8c37241b | 2251 | echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c |
fbfca19e | 2252 | echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c |
afd7a018 AM |
2253 | sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c |
2254 | echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c | |
2255 | sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c | |
82434356 | 2256 | fi |
afd7a018 AM |
2257 | echo ' ; else return' >> e${EMULATION_NAME}.c |
2258 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c | |
2259 | echo '; }' >> e${EMULATION_NAME}.c | |
252b5132 RH |
2260 | |
2261 | else | |
2262 | # Scripts read from the filesystem. | |
2263 | ||
92b93329 | 2264 | fragment <<EOF |
60bcf0fa | 2265 | { |
252b5132 RH |
2266 | *isfile = 1; |
2267 | ||
0e1862bb | 2268 | if (bfd_link_relocatable (&link_info) && config.build_constructors) |
252b5132 | 2269 | return "ldscripts/${EMULATION_NAME}.xu"; |
0e1862bb | 2270 | else if (bfd_link_relocatable (&link_info)) |
252b5132 RH |
2271 | return "ldscripts/${EMULATION_NAME}.xr"; |
2272 | else if (!config.text_read_only) | |
2273 | return "ldscripts/${EMULATION_NAME}.xbn"; | |
a060b769 AM |
2274 | EOF |
2275 | if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : | |
2276 | else | |
92b93329 | 2277 | fragment <<EOF |
252b5132 RH |
2278 | else if (!config.magic_demand_paged) |
2279 | return "ldscripts/${EMULATION_NAME}.xn"; | |
a060b769 AM |
2280 | EOF |
2281 | fi | |
36af4a4e JJ |
2282 | if test -n "$GENERATE_PIE_SCRIPT" ; then |
2283 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 2284 | fragment <<EOF |
0e1862bb L |
2285 | else if (bfd_link_pie (&link_info) |
2286 | && link_info.combreloc | |
2287 | && link_info.relro | |
2288 | && (link_info.flags & DF_BIND_NOW)) | |
8c37241b | 2289 | return "ldscripts/${EMULATION_NAME}.xdw"; |
0e1862bb L |
2290 | else if (bfd_link_pie (&link_info) |
2291 | && link_info.combreloc) | |
36af4a4e JJ |
2292 | return "ldscripts/${EMULATION_NAME}.xdc"; |
2293 | EOF | |
2294 | fi | |
92b93329 | 2295 | fragment <<EOF |
0e1862bb | 2296 | else if (bfd_link_pie (&link_info)) |
36af4a4e JJ |
2297 | return "ldscripts/${EMULATION_NAME}.xd"; |
2298 | EOF | |
2299 | fi | |
a060b769 AM |
2300 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then |
2301 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 2302 | fragment <<EOF |
0e1862bb | 2303 | else if (bfd_link_dll (&link_info) && link_info.combreloc |
fbfca19e | 2304 | && link_info.relro && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 2305 | return "ldscripts/${EMULATION_NAME}.xsw"; |
0e1862bb | 2306 | else if (bfd_link_dll (&link_info) && link_info.combreloc) |
a060b769 AM |
2307 | return "ldscripts/${EMULATION_NAME}.xsc"; |
2308 | EOF | |
2309 | fi | |
92b93329 | 2310 | fragment <<EOF |
0e1862bb | 2311 | else if (bfd_link_dll (&link_info)) |
252b5132 | 2312 | return "ldscripts/${EMULATION_NAME}.xs"; |
a060b769 AM |
2313 | EOF |
2314 | fi | |
2315 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
92b93329 | 2316 | fragment <<EOF |
8c37241b | 2317 | else if (link_info.combreloc && link_info.relro |
fbfca19e | 2318 | && (link_info.flags & DF_BIND_NOW)) |
8c37241b | 2319 | return "ldscripts/${EMULATION_NAME}.xw"; |
a060b769 AM |
2320 | else if (link_info.combreloc) |
2321 | return "ldscripts/${EMULATION_NAME}.xc"; | |
2322 | EOF | |
2323 | fi | |
92b93329 | 2324 | fragment <<EOF |
252b5132 RH |
2325 | else |
2326 | return "ldscripts/${EMULATION_NAME}.x"; | |
2327 | } | |
252b5132 | 2328 | |
3b108066 | 2329 | EOF |
41392f03 AM |
2330 | fi |
2331 | fi | |
3b108066 | 2332 | |
e0ee487b | 2333 | if test -n "$PARSE_AND_LIST_PROLOGUE" ; then |
92b93329 | 2334 | fragment <<EOF |
e0ee487b L |
2335 | $PARSE_AND_LIST_PROLOGUE |
2336 | EOF | |
2337 | fi | |
2338 | ||
92b93329 | 2339 | fragment <<EOF |
e0ee487b | 2340 | |
29063f8b NC |
2341 | enum elf_options |
2342 | { | |
2343 | OPTION_DISABLE_NEW_DTAGS = 400, | |
2344 | OPTION_ENABLE_NEW_DTAGS, | |
2345 | OPTION_GROUP, | |
2346 | OPTION_EH_FRAME_HDR, | |
2347 | OPTION_NO_EH_FRAME_HDR, | |
2348 | OPTION_EXCLUDE_LIBS, | |
2349 | OPTION_HASH_STYLE, | |
2350 | OPTION_BUILD_ID, | |
2351 | OPTION_AUDIT, | |
2352 | OPTION_COMPRESS_DEBUG | |
2353 | }; | |
e13629bc | 2354 | |
3bcf5557 | 2355 | static void |
0c7a8e5a AM |
2356 | gld${EMULATION_NAME}_add_options |
2357 | (int ns, char **shortopts, int nl, struct option **longopts, | |
2358 | int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED) | |
e0ee487b | 2359 | { |
fb42df5e AM |
2360 | EOF |
2361 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2362 | fragment <<EOF | |
7ee314fa | 2363 | static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:P:"; |
fb42df5e AM |
2364 | EOF |
2365 | else | |
2366 | fragment <<EOF | |
2367 | static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:"; | |
2368 | EOF | |
2369 | fi | |
2370 | fragment <<EOF | |
3bcf5557 | 2371 | static const struct option xtra_long[] = { |
fb42df5e AM |
2372 | EOF |
2373 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2374 | fragment <<EOF | |
7ee314fa | 2375 | {"audit", required_argument, NULL, OPTION_AUDIT}, |
fb42df5e AM |
2376 | {"Bgroup", no_argument, NULL, OPTION_GROUP}, |
2377 | EOF | |
2378 | fi | |
2379 | fragment <<EOF | |
2380 | {"build-id", optional_argument, NULL, OPTION_BUILD_ID}, | |
0ce398f1 | 2381 | {"compress-debug-sections", required_argument, NULL, OPTION_COMPRESS_DEBUG}, |
e0ee487b | 2382 | EOF |
e0ee487b | 2383 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then |
92b93329 | 2384 | fragment <<EOF |
fb42df5e | 2385 | {"depaudit", required_argument, NULL, 'P'}, |
3bcf5557 AM |
2386 | {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS}, |
2387 | {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS}, | |
2388 | {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR}, | |
29063f8b | 2389 | {"no-eh-frame-hdr", no_argument, NULL, OPTION_NO_EH_FRAME_HDR}, |
b58f81ae | 2390 | {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS}, |
fdc90cb4 | 2391 | {"hash-style", required_argument, NULL, OPTION_HASH_STYLE}, |
e0ee487b L |
2392 | EOF |
2393 | fi | |
e0ee487b | 2394 | if test -n "$PARSE_AND_LIST_LONGOPTS" ; then |
92b93329 | 2395 | fragment <<EOF |
3bcf5557 | 2396 | $PARSE_AND_LIST_LONGOPTS |
e0ee487b L |
2397 | EOF |
2398 | fi | |
92b93329 | 2399 | fragment <<EOF |
3bcf5557 AM |
2400 | {NULL, no_argument, NULL, 0} |
2401 | }; | |
2402 | ||
2403 | *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short)); | |
2404 | memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short)); | |
2405 | *longopts = (struct option *) | |
2406 | xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); | |
2407 | memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); | |
2408 | } | |
04925e1e | 2409 | |
24382dca | 2410 | #define DEFAULT_BUILD_ID_STYLE "sha1" |
c0065db7 | 2411 | |
3bcf5557 | 2412 | static bfd_boolean |
0c7a8e5a | 2413 | gld${EMULATION_NAME}_handle_option (int optc) |
e0ee487b | 2414 | { |
e0ee487b L |
2415 | switch (optc) |
2416 | { | |
2417 | default: | |
3bcf5557 | 2418 | return FALSE; |
6c1439be | 2419 | |
c0065db7 | 2420 | case OPTION_BUILD_ID: |
30e8ee25 | 2421 | if (emit_note_gnu_build_id != NULL) |
c0065db7 | 2422 | { |
30e8ee25 AM |
2423 | free ((char *) emit_note_gnu_build_id); |
2424 | emit_note_gnu_build_id = NULL; | |
c0065db7 RM |
2425 | } |
2426 | if (optarg == NULL) | |
2427 | optarg = DEFAULT_BUILD_ID_STYLE; | |
2428 | if (strcmp (optarg, "none")) | |
30e8ee25 | 2429 | emit_note_gnu_build_id = xstrdup (optarg); |
c0065db7 | 2430 | break; |
fb42df5e | 2431 | |
0ce398f1 L |
2432 | case OPTION_COMPRESS_DEBUG: |
2433 | if (strcasecmp (optarg, "none") == 0) | |
2434 | link_info.compress_debug = COMPRESS_DEBUG_NONE; | |
2435 | else if (strcasecmp (optarg, "zlib") == 0) | |
19a7fe52 | 2436 | link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB; |
0ce398f1 L |
2437 | else if (strcasecmp (optarg, "zlib-gnu") == 0) |
2438 | link_info.compress_debug = COMPRESS_DEBUG_GNU_ZLIB; | |
2439 | else if (strcasecmp (optarg, "zlib-gabi") == 0) | |
2440 | link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB; | |
2441 | else | |
2442 | einfo (_("%P%F: invalid --compress-debug-sections option: \`%s'\n"), | |
2443 | optarg); | |
2444 | break; | |
fb42df5e AM |
2445 | EOF |
2446 | ||
2447 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
2448 | fragment <<EOF | |
7ee314fa | 2449 | case OPTION_AUDIT: |
4724d37e | 2450 | gld${EMULATION_NAME}_append_to_separated_string (&audit, optarg); |
7ee314fa | 2451 | break; |
fb42df5e | 2452 | |
7ee314fa AM |
2453 | case 'P': |
2454 | gld${EMULATION_NAME}_append_to_separated_string (&depaudit, optarg); | |
2455 | break; | |
c0065db7 | 2456 | |
6c1439be | 2457 | case OPTION_DISABLE_NEW_DTAGS: |
b34976b6 | 2458 | link_info.new_dtags = FALSE; |
6c1439be L |
2459 | break; |
2460 | ||
2461 | case OPTION_ENABLE_NEW_DTAGS: | |
b34976b6 | 2462 | link_info.new_dtags = TRUE; |
6c1439be L |
2463 | break; |
2464 | ||
65765700 | 2465 | case OPTION_EH_FRAME_HDR: |
2f0c68f2 | 2466 | link_info.eh_frame_hdr_type = DWARF2_EH_HDR; |
65765700 JJ |
2467 | break; |
2468 | ||
29063f8b NC |
2469 | case OPTION_NO_EH_FRAME_HDR: |
2470 | link_info.eh_frame_hdr_type = 0; | |
2471 | break; | |
2472 | ||
a1ab1d2a UD |
2473 | case OPTION_GROUP: |
2474 | link_info.flags_1 |= (bfd_vma) DF_1_GROUP; | |
2475 | /* Groups must be self-contained. */ | |
560e09e9 NC |
2476 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; |
2477 | link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR; | |
a1ab1d2a UD |
2478 | break; |
2479 | ||
b58f81ae DJ |
2480 | case OPTION_EXCLUDE_LIBS: |
2481 | add_excluded_libs (optarg); | |
2482 | break; | |
2483 | ||
fdc90cb4 JJ |
2484 | case OPTION_HASH_STYLE: |
2485 | link_info.emit_hash = FALSE; | |
2486 | link_info.emit_gnu_hash = FALSE; | |
2487 | if (strcmp (optarg, "sysv") == 0) | |
2488 | link_info.emit_hash = TRUE; | |
2489 | else if (strcmp (optarg, "gnu") == 0) | |
2490 | link_info.emit_gnu_hash = TRUE; | |
2491 | else if (strcmp (optarg, "both") == 0) | |
2492 | { | |
2493 | link_info.emit_hash = TRUE; | |
2494 | link_info.emit_gnu_hash = TRUE; | |
2495 | } | |
2496 | else | |
2497 | einfo (_("%P%F: invalid hash style \`%s'\n"), optarg); | |
2498 | break; | |
2499 | ||
fb42df5e AM |
2500 | EOF |
2501 | fi | |
2502 | fragment <<EOF | |
e0ee487b | 2503 | case 'z': |
fb42df5e AM |
2504 | if (strcmp (optarg, "defs") == 0) |
2505 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; | |
2506 | else if (strcmp (optarg, "muldefs") == 0) | |
2507 | link_info.allow_multiple_definition = TRUE; | |
2508 | else if (CONST_STRNEQ (optarg, "max-page-size=")) | |
2509 | { | |
2510 | char *end; | |
2511 | ||
2512 | config.maxpagesize = strtoul (optarg + 14, &end, 0); | |
2513 | if (*end || (config.maxpagesize & (config.maxpagesize - 1)) != 0) | |
2514 | einfo (_("%P%F: invalid maxium page size \`%s'\n"), | |
2515 | optarg + 14); | |
2516 | } | |
2517 | else if (CONST_STRNEQ (optarg, "common-page-size=")) | |
2518 | { | |
2519 | char *end; | |
2520 | config.commonpagesize = strtoul (optarg + 17, &end, 0); | |
2521 | if (*end | |
2522 | || (config.commonpagesize & (config.commonpagesize - 1)) != 0) | |
2523 | einfo (_("%P%F: invalid common page size \`%s'\n"), | |
2524 | optarg + 17); | |
2525 | } | |
04c3a755 NS |
2526 | else if (CONST_STRNEQ (optarg, "stack-size=")) |
2527 | { | |
2528 | char *end; | |
2529 | link_info.stacksize = strtoul (optarg + 11, &end, 0); | |
2530 | if (*end || link_info.stacksize < 0) | |
2531 | einfo (_("%P%F: invalid stack size \`%s'\n"), optarg + 11); | |
2532 | if (!link_info.stacksize) | |
2533 | /* Use -1 for explicit no-stack, because zero means | |
2534 | 'default'. */ | |
2535 | link_info.stacksize = -1; | |
2536 | } | |
fb42df5e AM |
2537 | else if (strcmp (optarg, "execstack") == 0) |
2538 | { | |
2539 | link_info.execstack = TRUE; | |
2540 | link_info.noexecstack = FALSE; | |
2541 | } | |
2542 | else if (strcmp (optarg, "noexecstack") == 0) | |
2543 | { | |
2544 | link_info.noexecstack = TRUE; | |
2545 | link_info.execstack = FALSE; | |
2546 | } | |
2547 | EOF | |
d258b828 | 2548 | |
fb42df5e AM |
2549 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then |
2550 | fragment <<EOF | |
b039ef04 L |
2551 | else if (strcmp (optarg, "global") == 0) |
2552 | link_info.flags_1 |= (bfd_vma) DF_1_GLOBAL; | |
fb42df5e | 2553 | else if (strcmp (optarg, "initfirst") == 0) |
e0ee487b L |
2554 | link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST; |
2555 | else if (strcmp (optarg, "interpose") == 0) | |
2556 | link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE; | |
2557 | else if (strcmp (optarg, "loadfltr") == 0) | |
2558 | link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR; | |
2559 | else if (strcmp (optarg, "nodefaultlib") == 0) | |
2560 | link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB; | |
2561 | else if (strcmp (optarg, "nodelete") == 0) | |
2562 | link_info.flags_1 |= (bfd_vma) DF_1_NODELETE; | |
2563 | else if (strcmp (optarg, "nodlopen") == 0) | |
2564 | link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN; | |
2565 | else if (strcmp (optarg, "nodump") == 0) | |
2566 | link_info.flags_1 |= (bfd_vma) DF_1_NODUMP; | |
2567 | else if (strcmp (optarg, "now") == 0) | |
2568 | { | |
2569 | link_info.flags |= (bfd_vma) DF_BIND_NOW; | |
2570 | link_info.flags_1 |= (bfd_vma) DF_1_NOW; | |
2571 | } | |
5fa222e4 AM |
2572 | else if (strcmp (optarg, "lazy") == 0) |
2573 | { | |
2574 | link_info.flags &= ~(bfd_vma) DF_BIND_NOW; | |
2575 | link_info.flags_1 &= ~(bfd_vma) DF_1_NOW; | |
2576 | } | |
e0ee487b L |
2577 | else if (strcmp (optarg, "origin") == 0) |
2578 | { | |
2579 | link_info.flags |= (bfd_vma) DF_ORIGIN; | |
2580 | link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN; | |
2581 | } | |
db6751f2 | 2582 | else if (strcmp (optarg, "combreloc") == 0) |
b34976b6 | 2583 | link_info.combreloc = TRUE; |
db6751f2 | 2584 | else if (strcmp (optarg, "nocombreloc") == 0) |
b34976b6 | 2585 | link_info.combreloc = FALSE; |
8bd621d8 | 2586 | else if (strcmp (optarg, "nocopyreloc") == 0) |
0c7a8e5a | 2587 | link_info.nocopyreloc = TRUE; |
8c37241b JJ |
2588 | else if (strcmp (optarg, "relro") == 0) |
2589 | link_info.relro = TRUE; | |
2590 | else if (strcmp (optarg, "norelro") == 0) | |
2591 | link_info.relro = FALSE; | |
b8871f35 L |
2592 | else if (strcmp (optarg, "common") == 0) |
2593 | link_info.elf_stt_common = elf_stt_common; | |
2594 | else if (strcmp (optarg, "nocommon") == 0) | |
2595 | link_info.elf_stt_common = no_elf_stt_common; | |
c192a133 AM |
2596 | else if (strcmp (optarg, "text") == 0) |
2597 | link_info.error_textrel = TRUE; | |
2598 | else if (strcmp (optarg, "notext") == 0) | |
2599 | link_info.error_textrel = FALSE; | |
2600 | else if (strcmp (optarg, "textoff") == 0) | |
2601 | link_info.error_textrel = FALSE; | |
88b882e9 | 2602 | EOF |
fb42df5e | 2603 | fi |
88b882e9 | 2604 | |
eba27bd7 L |
2605 | if test -n "$PARSE_AND_LIST_ARGS_CASE_Z" ; then |
2606 | fragment <<EOF | |
2607 | $PARSE_AND_LIST_ARGS_CASE_Z | |
2608 | EOF | |
2609 | fi | |
2610 | ||
92b93329 | 2611 | fragment <<EOF |
fb42df5e AM |
2612 | else |
2613 | einfo (_("%P: warning: -z %s ignored.\n"), optarg); | |
6c1439be | 2614 | break; |
e0ee487b | 2615 | EOF |
e0ee487b L |
2616 | |
2617 | if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then | |
92b93329 | 2618 | fragment <<EOF |
e0ee487b L |
2619 | $PARSE_AND_LIST_ARGS_CASES |
2620 | EOF | |
2621 | fi | |
2622 | ||
92b93329 | 2623 | fragment <<EOF |
e0ee487b L |
2624 | } |
2625 | ||
3bcf5557 | 2626 | return TRUE; |
e0ee487b L |
2627 | } |
2628 | ||
41392f03 | 2629 | EOF |
41392f03 | 2630 | |
4b209b22 | 2631 | if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then |
c58212ea | 2632 | gld_list_options="gld${EMULATION_NAME}_list_options" |
eba27bd7 | 2633 | if test -n "$PARSE_AND_LIST_OPTIONS"; then |
92b93329 | 2634 | fragment <<EOF |
41392f03 | 2635 | |
e0ee487b | 2636 | static void |
0c7a8e5a | 2637 | gld${EMULATION_NAME}_list_options (FILE * file) |
e0ee487b | 2638 | { |
fb42df5e | 2639 | EOF |
e0ee487b L |
2640 | |
2641 | if test -n "$PARSE_AND_LIST_OPTIONS" ; then | |
92b93329 | 2642 | fragment <<EOF |
e0ee487b L |
2643 | $PARSE_AND_LIST_OPTIONS |
2644 | EOF | |
2645 | fi | |
2646 | ||
92b93329 | 2647 | fragment <<EOF |
e0ee487b L |
2648 | } |
2649 | EOF | |
c58212ea L |
2650 | else |
2651 | gld_list_options="NULL" | |
2652 | fi | |
e0ee487b L |
2653 | |
2654 | if test -n "$PARSE_AND_LIST_EPILOGUE" ; then | |
92b93329 | 2655 | fragment <<EOF |
e0ee487b L |
2656 | $PARSE_AND_LIST_EPILOGUE |
2657 | EOF | |
2658 | fi | |
41392f03 | 2659 | fi |
e0ee487b | 2660 | |
92b93329 | 2661 | fragment <<EOF |
252b5132 | 2662 | |
60bcf0fa | 2663 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = |
252b5132 | 2664 | { |
41392f03 AM |
2665 | ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse}, |
2666 | ${LDEMUL_SYSLIB-syslib_default}, | |
2667 | ${LDEMUL_HLL-hll_default}, | |
5fe2850d | 2668 | ${LDEMUL_AFTER_PARSE-gld${EMULATION_NAME}_after_parse}, |
41392f03 | 2669 | ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open}, |
eaeb0a9d | 2670 | ${LDEMUL_AFTER_ALLOCATION-gld${EMULATION_NAME}_after_allocation}, |
41392f03 AM |
2671 | ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default}, |
2672 | ${LDEMUL_CHOOSE_TARGET-ldemul_default_target}, | |
2673 | ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation}, | |
2674 | ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script}, | |
252b5132 RH |
2675 | "${EMULATION_NAME}", |
2676 | "${OUTPUT_FORMAT}", | |
eaeb0a9d | 2677 | ${LDEMUL_FINISH-finish_default}, |
41392f03 AM |
2678 | ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL}, |
2679 | ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive}, | |
2680 | ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan}, | |
2681 | ${LDEMUL_SET_SYMBOLS-NULL}, | |
3bcf5557 AM |
2682 | ${LDEMUL_PARSE_ARGS-NULL}, |
2683 | gld${EMULATION_NAME}_add_options, | |
2684 | gld${EMULATION_NAME}_handle_option, | |
41392f03 | 2685 | ${LDEMUL_UNRECOGNIZED_FILE-NULL}, |
c58212ea | 2686 | ${LDEMUL_LIST_OPTIONS-${gld_list_options}}, |
4a43e768 | 2687 | ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols}, |
41392f03 | 2688 | ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL}, |
7a2f2d82 DD |
2689 | ${LDEMUL_NEW_VERS_PATTERN-NULL}, |
2690 | ${LDEMUL_EXTRA_MAP_FILE_TEXT-NULL} | |
252b5132 RH |
2691 | }; |
2692 | EOF |