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 "${ELFSIZE}" && ELFSIZE=32 | |
6 | cat >e${EMULATION_NAME}.c <<EOF | |
7 | /* This file is is generated by a shell script. DO NOT EDIT! */ | |
8 | ||
9 | /* ${ELFSIZE} bit ELF emulation code for ${EMULATION_NAME} | |
b71e2778 | 10 | Copyright (C) 1991, 93, 94, 95, 96, 97, 98, 99, 2000 |
87f2a346 | 11 | Free Software Foundation, Inc. |
252b5132 RH |
12 | Written by Steve Chamberlain <sac@cygnus.com> |
13 | ELF support by Ian Lance Taylor <ian@cygnus.com> | |
14 | ||
15 | This file is part of GLD, the Gnu Linker. | |
16 | ||
17 | This program is free software; you can redistribute it and/or modify | |
18 | it under the terms of the GNU General Public License as published by | |
19 | the Free Software Foundation; either version 2 of the License, or | |
20 | (at your option) any later version. | |
21 | ||
22 | This program is distributed in the hope that it will be useful, | |
23 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | GNU General Public License for more details. | |
26 | ||
27 | You should have received a copy of the GNU General Public License | |
28 | along with this program; if not, write to the Free Software | |
29 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
30 | ||
31 | #define TARGET_IS_${EMULATION_NAME} | |
32 | ||
33 | #include "bfd.h" | |
34 | #include "sysdep.h" | |
35 | ||
36 | #include <ctype.h> | |
37 | ||
38 | #include "bfdlink.h" | |
39 | ||
40 | #include "ld.h" | |
41 | #include "ldmain.h" | |
252b5132 RH |
42 | #include "ldmisc.h" |
43 | #include "ldexp.h" | |
44 | #include "ldlang.h" | |
b71e2778 AM |
45 | #include "ldfile.h" |
46 | #include "ldemul.h" | |
252b5132 | 47 | #include "ldgram.h" |
e0ee487b | 48 | #include "elf/common.h" |
252b5132 RH |
49 | |
50 | static void gld${EMULATION_NAME}_before_parse PARAMS ((void)); | |
04925e1e | 51 | static void gld${EMULATION_NAME}_vercheck |
252b5132 RH |
52 | PARAMS ((lang_input_statement_type *)); |
53 | static void gld${EMULATION_NAME}_stat_needed | |
54 | PARAMS ((lang_input_statement_type *)); | |
04925e1e | 55 | static boolean gld${EMULATION_NAME}_try_needed PARAMS ((const char *, int)); |
252b5132 RH |
56 | static boolean gld${EMULATION_NAME}_search_needed |
57 | PARAMS ((const char *, const char *, int)); | |
04925e1e | 58 | static void gld${EMULATION_NAME}_check_needed |
252b5132 | 59 | PARAMS ((lang_input_statement_type *)); |
04925e1e AM |
60 | static void gld${EMULATION_NAME}_after_open PARAMS ((void)); |
61 | static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *)); | |
252b5132 RH |
62 | static void gld${EMULATION_NAME}_find_statement_assignment |
63 | PARAMS ((lang_statement_union_type *)); | |
04925e1e AM |
64 | static void gld${EMULATION_NAME}_before_allocation PARAMS ((void)); |
65 | static boolean gld${EMULATION_NAME}_open_dynamic_archive | |
66 | PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *)); | |
67 | static lang_output_section_statement_type *output_rel_find PARAMS ((void)); | |
252b5132 RH |
68 | static boolean gld${EMULATION_NAME}_place_orphan |
69 | PARAMS ((lang_input_statement_type *, asection *)); | |
252b5132 RH |
70 | static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile)); |
71 | ||
41392f03 AM |
72 | EOF |
73 | ||
74 | # Import any needed special functions and/or overrides. | |
75 | # | |
76 | if test -n "$EXTRA_EM_FILE" ; then | |
77 | . ${srcdir}/emultempl/${EXTRA_EM_FILE}.em | |
78 | fi | |
79 | ||
80 | # Functions in this file can be overriden by setting the LDEMUL_* shell | |
81 | # variables. If the name of the overriding function is the same as is | |
82 | # defined in this file, then don't output this file's version. | |
83 | # If a different overriding name is given then output the standard function | |
84 | # as presumably it is called from the overriding function. | |
85 | # | |
86 | if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then | |
87 | cat >>e${EMULATION_NAME}.c <<EOF | |
88 | ||
252b5132 | 89 | static void |
41392f03 | 90 | gld${EMULATION_NAME}_before_parse () |
252b5132 RH |
91 | { |
92 | ldfile_output_architecture = bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`; | |
93 | config.dynamic_link = ${DYNAMIC_LINK-true}; | |
94 | config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo true ; else echo false ; fi`; | |
95 | } | |
96 | ||
41392f03 AM |
97 | EOF |
98 | fi | |
99 | ||
100 | cat >>e${EMULATION_NAME}.c <<EOF | |
252b5132 RH |
101 | |
102 | /* These variables are required to pass information back and forth | |
103 | between after_open and check_needed and stat_needed and vercheck. */ | |
104 | ||
105 | static struct bfd_link_needed_list *global_needed; | |
106 | static struct stat global_stat; | |
107 | static boolean global_found; | |
108 | static struct bfd_link_needed_list *global_vercheck_needed; | |
109 | static boolean global_vercheck_failed; | |
110 | ||
252b5132 | 111 | |
04925e1e AM |
112 | /* On Linux, it's possible to have different versions of the same |
113 | shared library linked against different versions of libc. The | |
114 | dynamic linker somehow tags which libc version to use in | |
115 | /etc/ld.so.cache, and, based on the libc that it sees in the | |
116 | executable, chooses which version of the shared library to use. | |
252b5132 | 117 | |
04925e1e AM |
118 | We try to do a similar check here by checking whether this shared |
119 | library needs any other shared libraries which may conflict with | |
120 | libraries we have already included in the link. If it does, we | |
121 | skip it, and try to find another shared library farther on down the | |
122 | link path. | |
252b5132 | 123 | |
04925e1e AM |
124 | This is called via lang_for_each_input_file. |
125 | GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object | |
126 | which we ar checking. This sets GLOBAL_VERCHECK_FAILED if we find | |
127 | a conflicting version. */ | |
252b5132 | 128 | |
04925e1e AM |
129 | static void |
130 | gld${EMULATION_NAME}_vercheck (s) | |
131 | lang_input_statement_type *s; | |
132 | { | |
133 | const char *soname, *f; | |
134 | struct bfd_link_needed_list *l; | |
252b5132 | 135 | |
04925e1e AM |
136 | if (global_vercheck_failed) |
137 | return; | |
138 | if (s->the_bfd == NULL | |
139 | || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0) | |
140 | return; | |
252b5132 | 141 | |
04925e1e AM |
142 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
143 | if (soname == NULL) | |
144 | soname = bfd_get_filename (s->the_bfd); | |
145 | ||
146 | f = strrchr (soname, '/'); | |
147 | if (f != NULL) | |
148 | ++f; | |
149 | else | |
150 | f = soname; | |
151 | ||
152 | for (l = global_vercheck_needed; l != NULL; l = l->next) | |
153 | { | |
154 | const char *suffix; | |
155 | ||
156 | if (strcmp (f, l->name) == 0) | |
157 | { | |
158 | /* Probably can't happen, but it's an easy check. */ | |
159 | continue; | |
252b5132 RH |
160 | } |
161 | ||
04925e1e | 162 | if (strchr (l->name, '/') != NULL) |
252b5132 RH |
163 | continue; |
164 | ||
04925e1e AM |
165 | suffix = strstr (l->name, ".so."); |
166 | if (suffix == NULL) | |
167 | continue; | |
168 | ||
169 | suffix += sizeof ".so." - 1; | |
170 | ||
171 | if (strncmp (f, l->name, suffix - l->name) == 0) | |
172 | { | |
173 | /* Here we know that S is a dynamic object FOO.SO.VER1, and | |
174 | the object we are considering needs a dynamic object | |
175 | FOO.SO.VER2, and VER1 and VER2 are different. This | |
176 | appears to be a version mismatch, so we tell the caller | |
177 | to try a different version of this library. */ | |
178 | global_vercheck_failed = true; | |
179 | return; | |
180 | } | |
252b5132 RH |
181 | } |
182 | } | |
183 | ||
252b5132 | 184 | |
04925e1e AM |
185 | /* See if an input file matches a DT_NEEDED entry by running stat on |
186 | the file. */ | |
187 | ||
188 | static void | |
189 | gld${EMULATION_NAME}_stat_needed (s) | |
190 | lang_input_statement_type *s; | |
252b5132 | 191 | { |
04925e1e AM |
192 | struct stat st; |
193 | const char *suffix; | |
194 | const char *soname; | |
195 | const char *f; | |
252b5132 | 196 | |
04925e1e AM |
197 | if (global_found) |
198 | return; | |
199 | if (s->the_bfd == NULL) | |
200 | return; | |
201 | ||
202 | if (bfd_stat (s->the_bfd, &st) != 0) | |
252b5132 | 203 | { |
04925e1e AM |
204 | einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd); |
205 | return; | |
206 | } | |
252b5132 | 207 | |
04925e1e AM |
208 | if (st.st_dev == global_stat.st_dev |
209 | && st.st_ino == global_stat.st_ino) | |
210 | { | |
211 | global_found = true; | |
212 | return; | |
213 | } | |
252b5132 | 214 | |
04925e1e AM |
215 | /* We issue a warning if it looks like we are including two |
216 | different versions of the same shared library. For example, | |
217 | there may be a problem if -lc picks up libc.so.6 but some other | |
218 | shared library has a DT_NEEDED entry of libc.so.5. This is a | |
219 | hueristic test, and it will only work if the name looks like | |
220 | NAME.so.VERSION. FIXME: Depending on file names is error-prone. | |
221 | If we really want to issue warnings about mixing version numbers | |
222 | of shared libraries, we need to find a better way. */ | |
252b5132 | 223 | |
04925e1e AM |
224 | if (strchr (global_needed->name, '/') != NULL) |
225 | return; | |
226 | suffix = strstr (global_needed->name, ".so."); | |
227 | if (suffix == NULL) | |
228 | return; | |
229 | suffix += sizeof ".so." - 1; | |
252b5132 | 230 | |
04925e1e AM |
231 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
232 | if (soname == NULL) | |
233 | soname = s->filename; | |
252b5132 | 234 | |
04925e1e AM |
235 | f = strrchr (soname, '/'); |
236 | if (f != NULL) | |
237 | ++f; | |
238 | else | |
239 | f = soname; | |
252b5132 | 240 | |
04925e1e AM |
241 | if (strncmp (f, global_needed->name, suffix - global_needed->name) == 0) |
242 | einfo ("%P: warning: %s, needed by %B, may conflict with %s\n", | |
243 | global_needed->name, global_needed->by, f); | |
252b5132 RH |
244 | } |
245 | ||
04925e1e | 246 | |
252b5132 RH |
247 | /* This function is called for each possible name for a dynamic object |
248 | named by a DT_NEEDED entry. The FORCE parameter indicates whether | |
249 | to skip the check for a conflicting version. */ | |
250 | ||
251 | static boolean | |
252 | gld${EMULATION_NAME}_try_needed (name, force) | |
253 | const char *name; | |
254 | int force; | |
255 | { | |
256 | bfd *abfd; | |
257 | ||
258 | abfd = bfd_openr (name, bfd_get_target (output_bfd)); | |
259 | if (abfd == NULL) | |
260 | return false; | |
261 | if (! bfd_check_format (abfd, bfd_object)) | |
262 | { | |
263 | (void) bfd_close (abfd); | |
264 | return false; | |
265 | } | |
266 | if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0) | |
267 | { | |
268 | (void) bfd_close (abfd); | |
269 | return false; | |
270 | } | |
271 | ||
272 | /* Check whether this object would include any conflicting library | |
273 | versions. If FORCE is set, then we skip this check; we use this | |
274 | the second time around, if we couldn't find any compatible | |
275 | instance of the shared library. */ | |
276 | ||
277 | if (! force) | |
278 | { | |
279 | struct bfd_link_needed_list *needed; | |
280 | ||
281 | if (! bfd_elf_get_bfd_needed_list (abfd, &needed)) | |
282 | einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd); | |
283 | ||
284 | if (needed != NULL) | |
285 | { | |
286 | global_vercheck_needed = needed; | |
287 | global_vercheck_failed = false; | |
288 | lang_for_each_input_file (gld${EMULATION_NAME}_vercheck); | |
289 | if (global_vercheck_failed) | |
290 | { | |
291 | (void) bfd_close (abfd); | |
292 | /* Return false to force the caller to move on to try | |
293 | another file on the search path. */ | |
294 | return false; | |
295 | } | |
296 | ||
297 | /* But wait! It gets much worse. On Linux, if a shared | |
298 | library does not use libc at all, we are supposed to skip | |
299 | it the first time around in case we encounter a shared | |
300 | library later on with the same name which does use the | |
301 | version of libc that we want. This is much too horrible | |
302 | to use on any system other than Linux. */ | |
303 | ||
304 | EOF | |
305 | case ${target} in | |
306 | *-*-linux-gnu*) | |
307 | cat >>e${EMULATION_NAME}.c <<EOF | |
308 | { | |
309 | struct bfd_link_needed_list *l; | |
310 | ||
311 | for (l = needed; l != NULL; l = l->next) | |
312 | if (strncmp (l->name, "libc.so", 7) == 0) | |
313 | break; | |
314 | if (l == NULL) | |
315 | { | |
316 | (void) bfd_close (abfd); | |
317 | return false; | |
318 | } | |
319 | } | |
320 | ||
321 | EOF | |
322 | ;; | |
323 | esac | |
324 | cat >>e${EMULATION_NAME}.c <<EOF | |
325 | } | |
326 | } | |
327 | ||
328 | /* We've found a dynamic object matching the DT_NEEDED entry. */ | |
329 | ||
04925e1e AM |
330 | /* We have already checked that there is no other input file of the |
331 | same name. We must now check again that we are not including the | |
332 | same file twice. We need to do this because on many systems | |
333 | libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will | |
334 | reference libc.so.1. If we have already included libc.so, we | |
335 | don't want to include libc.so.1 if they are the same file, and we | |
336 | can only check that using stat. */ | |
337 | ||
338 | if (bfd_stat (abfd, &global_stat) != 0) | |
339 | einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd); | |
340 | global_found = false; | |
341 | lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed); | |
342 | if (global_found) | |
343 | { | |
344 | /* Return true to indicate that we found the file, even though | |
345 | we aren't going to do anything with it. */ | |
346 | return true; | |
347 | } | |
348 | ||
41392f03 | 349 | /* Tell the ELF backend that we don't want the output file to have a |
04925e1e AM |
350 | DT_NEEDED entry for this file. */ |
351 | bfd_elf_set_dt_needed_name (abfd, ""); | |
352 | ||
353 | /* First strip off everything before the last '/'. */ | |
354 | name = strrchr (abfd->filename, '/'); | |
355 | if (name) | |
356 | name++; | |
357 | else | |
358 | name = abfd->filename; | |
359 | ||
360 | /* Tell the ELF backend that the output file needs a DT_NEEDED | |
361 | entry for this file if it is used to resolve the reference in | |
362 | a regular object. */ | |
363 | bfd_elf_set_dt_needed_soname (abfd, name); | |
364 | ||
365 | /* Add this file into the symbol table. */ | |
366 | if (! bfd_link_add_symbols (abfd, &link_info)) | |
367 | einfo ("%F%B: could not read symbols: %E\n", abfd); | |
368 | ||
369 | return true; | |
370 | } | |
371 | ||
372 | ||
373 | /* Search for a needed file in a path. */ | |
374 | ||
375 | static boolean | |
376 | gld${EMULATION_NAME}_search_needed (path, name, force) | |
377 | const char *path; | |
378 | const char *name; | |
379 | int force; | |
380 | { | |
381 | const char *s; | |
382 | size_t len; | |
383 | ||
384 | if (path == NULL || *path == '\0') | |
385 | return false; | |
386 | len = strlen (name); | |
387 | while (1) | |
388 | { | |
389 | char *filename, *sset; | |
390 | ||
391 | s = strchr (path, ':'); | |
392 | if (s == NULL) | |
393 | s = path + strlen (path); | |
394 | ||
395 | filename = (char *) xmalloc (s - path + len + 2); | |
396 | if (s == path) | |
397 | sset = filename; | |
398 | else | |
399 | { | |
400 | memcpy (filename, path, s - path); | |
401 | filename[s - path] = '/'; | |
402 | sset = filename + (s - path) + 1; | |
403 | } | |
404 | strcpy (sset, name); | |
405 | ||
406 | if (gld${EMULATION_NAME}_try_needed (filename, force)) | |
407 | return true; | |
408 | ||
409 | free (filename); | |
410 | ||
411 | if (*s == '\0') | |
412 | break; | |
413 | path = s + 1; | |
414 | } | |
415 | ||
416 | return false; | |
417 | } | |
418 | ||
419 | EOF | |
420 | if [ "x${host}" = "x${target}" ] ; then | |
421 | case " ${EMULATION_LIBPATH} " in | |
422 | *" ${EMULATION_NAME} "*) | |
423 | cat >>e${EMULATION_NAME}.c <<EOF | |
424 | ||
425 | /* For a native linker, check the file /etc/ld.so.conf for directories | |
426 | in which we may find shared libraries. /etc/ld.so.conf is really | |
427 | only meaningful on Linux, but we check it on other systems anyhow. */ | |
428 | ||
429 | static boolean gld${EMULATION_NAME}_check_ld_so_conf | |
430 | PARAMS ((const char *, int)); | |
431 | ||
432 | static boolean | |
433 | gld${EMULATION_NAME}_check_ld_so_conf (name, force) | |
434 | const char *name; | |
435 | int force; | |
436 | { | |
437 | static boolean initialized; | |
438 | static char *ld_so_conf; | |
439 | ||
440 | if (! initialized) | |
441 | { | |
442 | FILE *f; | |
443 | ||
444 | f = fopen ("/etc/ld.so.conf", FOPEN_RT); | |
445 | if (f != NULL) | |
446 | { | |
447 | char *b; | |
448 | size_t len, alloc; | |
449 | int c; | |
450 | ||
451 | len = 0; | |
452 | alloc = 100; | |
453 | b = (char *) xmalloc (alloc); | |
454 | ||
455 | while ((c = getc (f)) != EOF) | |
456 | { | |
457 | if (len + 1 >= alloc) | |
458 | { | |
459 | alloc *= 2; | |
460 | b = (char *) xrealloc (b, alloc); | |
461 | } | |
462 | if (c != ':' | |
463 | && c != ' ' | |
464 | && c != '\t' | |
465 | && c != '\n' | |
466 | && c != ',') | |
467 | { | |
468 | b[len] = c; | |
469 | ++len; | |
470 | } | |
471 | else | |
472 | { | |
473 | if (len > 0 && b[len - 1] != ':') | |
474 | { | |
475 | b[len] = ':'; | |
476 | ++len; | |
477 | } | |
478 | } | |
479 | } | |
480 | ||
481 | if (len > 0 && b[len - 1] == ':') | |
482 | --len; | |
252b5132 | 483 | |
04925e1e AM |
484 | if (len > 0) |
485 | b[len] = '\0'; | |
486 | else | |
487 | { | |
488 | free (b); | |
489 | b = NULL; | |
490 | } | |
252b5132 | 491 | |
04925e1e | 492 | fclose (f); |
252b5132 | 493 | |
04925e1e AM |
494 | ld_so_conf = b; |
495 | } | |
49e56c49 | 496 | |
04925e1e AM |
497 | initialized = true; |
498 | } | |
49e56c49 | 499 | |
04925e1e AM |
500 | if (ld_so_conf == NULL) |
501 | return false; | |
252b5132 | 502 | |
04925e1e | 503 | return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force); |
252b5132 RH |
504 | } |
505 | ||
04925e1e AM |
506 | EOF |
507 | ;; | |
508 | esac | |
509 | fi | |
510 | cat >>e${EMULATION_NAME}.c <<EOF | |
511 | ||
252b5132 RH |
512 | /* See if an input file matches a DT_NEEDED entry by name. */ |
513 | ||
514 | static void | |
515 | gld${EMULATION_NAME}_check_needed (s) | |
516 | lang_input_statement_type *s; | |
517 | { | |
518 | if (global_found) | |
519 | return; | |
520 | ||
521 | if (s->filename != NULL | |
522 | && strcmp (s->filename, global_needed->name) == 0) | |
523 | { | |
524 | global_found = true; | |
525 | return; | |
526 | } | |
527 | ||
528 | if (s->the_bfd != NULL) | |
529 | { | |
530 | const char *soname; | |
531 | ||
532 | soname = bfd_elf_get_dt_soname (s->the_bfd); | |
533 | if (soname != NULL | |
534 | && strcmp (soname, global_needed->name) == 0) | |
535 | { | |
536 | global_found = true; | |
537 | return; | |
538 | } | |
539 | } | |
540 | ||
541 | if (s->search_dirs_flag | |
542 | && s->filename != NULL | |
543 | && strchr (global_needed->name, '/') == NULL) | |
544 | { | |
545 | const char *f; | |
546 | ||
547 | f = strrchr (s->filename, '/'); | |
548 | if (f != NULL | |
549 | && strcmp (f + 1, global_needed->name) == 0) | |
550 | { | |
551 | global_found = true; | |
552 | return; | |
553 | } | |
554 | } | |
555 | } | |
556 | ||
41392f03 AM |
557 | EOF |
558 | ||
559 | if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then | |
560 | cat >>e${EMULATION_NAME}.c <<EOF | |
04925e1e AM |
561 | |
562 | /* This is called after all the input files have been opened. */ | |
252b5132 RH |
563 | |
564 | static void | |
04925e1e | 565 | gld${EMULATION_NAME}_after_open () |
252b5132 | 566 | { |
04925e1e | 567 | struct bfd_link_needed_list *needed, *l; |
252b5132 | 568 | |
04925e1e AM |
569 | /* We only need to worry about this when doing a final link. */ |
570 | if (link_info.relocateable || link_info.shared) | |
252b5132 RH |
571 | return; |
572 | ||
04925e1e AM |
573 | /* Get the list of files which appear in DT_NEEDED entries in |
574 | dynamic objects included in the link (often there will be none). | |
575 | For each such file, we want to track down the corresponding | |
576 | library, and include the symbol table in the link. This is what | |
577 | the runtime dynamic linker will do. Tracking the files down here | |
578 | permits one dynamic object to include another without requiring | |
579 | special action by the person doing the link. Note that the | |
580 | needed list can actually grow while we are stepping through this | |
581 | loop. */ | |
582 | needed = bfd_elf_get_needed_list (output_bfd, &link_info); | |
583 | for (l = needed; l != NULL; l = l->next) | |
252b5132 | 584 | { |
04925e1e AM |
585 | struct bfd_link_needed_list *ll; |
586 | int force; | |
252b5132 | 587 | |
04925e1e AM |
588 | /* If we've already seen this file, skip it. */ |
589 | for (ll = needed; ll != l; ll = ll->next) | |
590 | if (strcmp (ll->name, l->name) == 0) | |
591 | break; | |
592 | if (ll != l) | |
593 | continue; | |
252b5132 | 594 | |
04925e1e AM |
595 | /* See if this file was included in the link explicitly. */ |
596 | global_needed = l; | |
597 | global_found = false; | |
598 | lang_for_each_input_file (gld${EMULATION_NAME}_check_needed); | |
599 | if (global_found) | |
600 | continue; | |
252b5132 | 601 | |
04925e1e AM |
602 | /* We need to find this file and include the symbol table. We |
603 | want to search for the file in the same way that the dynamic | |
604 | linker will search. That means that we want to use | |
605 | rpath_link, rpath, then the environment variable | |
606 | LD_LIBRARY_PATH (native only), then the linker script | |
607 | LIB_SEARCH_DIRS. We do not search using the -L arguments. | |
252b5132 | 608 | |
04925e1e AM |
609 | We search twice. The first time, we skip objects which may |
610 | introduce version mismatches. The second time, we force | |
611 | their use. See gld${EMULATION_NAME}_vercheck comment. */ | |
612 | for (force = 0; force < 2; force++) | |
613 | { | |
614 | const char *lib_path; | |
615 | size_t len; | |
616 | search_dirs_type *search; | |
252b5132 | 617 | |
04925e1e AM |
618 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link, |
619 | l->name, force)) | |
620 | break; | |
621 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath, | |
622 | l->name, force)) | |
623 | break; | |
624 | if (command_line.rpath_link == NULL | |
625 | && command_line.rpath == NULL) | |
626 | { | |
627 | lib_path = (const char *) getenv ("LD_RUN_PATH"); | |
628 | if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, | |
629 | force)) | |
630 | break; | |
631 | } | |
632 | EOF | |
633 | if [ "x${host}" = "x${target}" ] ; then | |
634 | case " ${EMULATION_LIBPATH} " in | |
635 | *" ${EMULATION_NAME} "*) | |
636 | cat >>e${EMULATION_NAME}.c <<EOF | |
637 | lib_path = (const char *) getenv ("LD_LIBRARY_PATH"); | |
638 | if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force)) | |
639 | break; | |
640 | EOF | |
641 | ;; | |
642 | esac | |
643 | fi | |
644 | cat >>e${EMULATION_NAME}.c <<EOF | |
645 | len = strlen (l->name); | |
646 | for (search = search_head; search != NULL; search = search->next) | |
647 | { | |
648 | char *filename; | |
252b5132 | 649 | |
04925e1e AM |
650 | if (search->cmdline) |
651 | continue; | |
652 | filename = (char *) xmalloc (strlen (search->name) + len + 2); | |
653 | sprintf (filename, "%s/%s", search->name, l->name); | |
654 | if (gld${EMULATION_NAME}_try_needed (filename, force)) | |
655 | break; | |
656 | free (filename); | |
657 | } | |
658 | if (search != NULL) | |
659 | break; | |
660 | EOF | |
661 | if [ "x${host}" = "x${target}" ] ; then | |
662 | case " ${EMULATION_LIBPATH} " in | |
663 | *" ${EMULATION_NAME} "*) | |
664 | cat >>e${EMULATION_NAME}.c <<EOF | |
665 | if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force)) | |
666 | break; | |
667 | EOF | |
668 | ;; | |
669 | esac | |
670 | fi | |
671 | cat >>e${EMULATION_NAME}.c <<EOF | |
672 | } | |
252b5132 | 673 | |
04925e1e AM |
674 | if (force < 2) |
675 | continue; | |
252b5132 | 676 | |
04925e1e AM |
677 | einfo ("%P: warning: %s, needed by %B, not found (try using --rpath)\n", |
678 | l->name, l->by); | |
679 | } | |
680 | } | |
252b5132 | 681 | |
41392f03 AM |
682 | EOF |
683 | fi | |
684 | ||
685 | cat >>e${EMULATION_NAME}.c <<EOF | |
252b5132 | 686 | |
04925e1e | 687 | /* Look through an expression for an assignment statement. */ |
252b5132 | 688 | |
04925e1e AM |
689 | static void |
690 | gld${EMULATION_NAME}_find_exp_assignment (exp) | |
691 | etree_type *exp; | |
692 | { | |
693 | struct bfd_link_hash_entry *h; | |
694 | ||
695 | switch (exp->type.node_class) | |
252b5132 | 696 | { |
04925e1e AM |
697 | case etree_provide: |
698 | h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst, | |
699 | false, false, false); | |
700 | if (h == NULL) | |
701 | break; | |
252b5132 | 702 | |
04925e1e AM |
703 | /* We call record_link_assignment even if the symbol is defined. |
704 | This is because if it is defined by a dynamic object, we | |
705 | actually want to use the value defined by the linker script, | |
706 | not the value from the dynamic object (because we are setting | |
707 | symbols like etext). If the symbol is defined by a regular | |
708 | object, then, as it happens, calling record_link_assignment | |
709 | will do no harm. */ | |
710 | ||
711 | /* Fall through. */ | |
712 | case etree_assign: | |
713 | if (strcmp (exp->assign.dst, ".") != 0) | |
252b5132 | 714 | { |
04925e1e AM |
715 | if (! (bfd_elf${ELFSIZE}_record_link_assignment |
716 | (output_bfd, &link_info, exp->assign.dst, | |
717 | exp->type.node_class == etree_provide ? true : false))) | |
718 | einfo ("%P%F: failed to record assignment to %s: %E\n", | |
719 | exp->assign.dst); | |
252b5132 | 720 | } |
04925e1e AM |
721 | gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); |
722 | break; | |
252b5132 | 723 | |
04925e1e AM |
724 | case etree_binary: |
725 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); | |
726 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); | |
727 | break; | |
252b5132 | 728 | |
04925e1e AM |
729 | case etree_trinary: |
730 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond); | |
731 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); | |
732 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); | |
733 | break; | |
252b5132 | 734 | |
04925e1e AM |
735 | case etree_unary: |
736 | gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); | |
737 | break; | |
252b5132 | 738 | |
04925e1e AM |
739 | default: |
740 | break; | |
252b5132 RH |
741 | } |
742 | } | |
743 | ||
04925e1e AM |
744 | |
745 | /* This is called by the before_allocation routine via | |
746 | lang_for_each_statement. It locates any assignment statements, and | |
747 | tells the ELF backend about them, in case they are assignments to | |
748 | symbols which are referred to by dynamic objects. */ | |
749 | ||
750 | static void | |
751 | gld${EMULATION_NAME}_find_statement_assignment (s) | |
752 | lang_statement_union_type *s; | |
753 | { | |
754 | if (s->header.type == lang_assignment_statement_enum) | |
755 | gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); | |
756 | } | |
757 | ||
41392f03 AM |
758 | EOF |
759 | ||
760 | if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then | |
761 | cat >>e${EMULATION_NAME}.c <<EOF | |
04925e1e | 762 | |
252b5132 RH |
763 | /* This is called after the sections have been attached to output |
764 | sections, but before any sizes or addresses have been set. */ | |
765 | ||
766 | static void | |
767 | gld${EMULATION_NAME}_before_allocation () | |
768 | { | |
769 | const char *rpath; | |
770 | asection *sinterp; | |
771 | ||
772 | /* If we are going to make any variable assignments, we need to let | |
773 | the ELF backend know about them in case the variables are | |
774 | referred to by dynamic objects. */ | |
775 | lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment); | |
776 | ||
777 | /* Let the ELF backend work out the sizes of any sections required | |
778 | by dynamic linking. */ | |
779 | rpath = command_line.rpath; | |
780 | if (rpath == NULL) | |
781 | rpath = (const char *) getenv ("LD_RUN_PATH"); | |
782 | if (! (bfd_elf${ELFSIZE}_size_dynamic_sections | |
783 | (output_bfd, command_line.soname, rpath, | |
784 | command_line.export_dynamic, command_line.filter_shlib, | |
785 | (const char * const *) command_line.auxiliary_filters, | |
786 | &link_info, &sinterp, lang_elf_version_info))) | |
787 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); | |
788 | ||
789 | /* Let the user override the dynamic linker we are using. */ | |
790 | if (command_line.interpreter != NULL | |
791 | && sinterp != NULL) | |
792 | { | |
793 | sinterp->contents = (bfd_byte *) command_line.interpreter; | |
794 | sinterp->_raw_size = strlen (command_line.interpreter) + 1; | |
795 | } | |
796 | ||
797 | /* Look for any sections named .gnu.warning. As a GNU extensions, | |
798 | we treat such sections as containing warning messages. We print | |
799 | out the warning message, and then zero out the section size so | |
800 | that it does not get copied into the output file. */ | |
801 | ||
802 | { | |
803 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
804 | { | |
805 | asection *s; | |
806 | bfd_size_type sz; | |
807 | char *msg; | |
808 | boolean ret; | |
809 | ||
810 | if (is->just_syms_flag) | |
811 | continue; | |
812 | ||
813 | s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning"); | |
814 | if (s == NULL) | |
815 | continue; | |
816 | ||
817 | sz = bfd_section_size (is->the_bfd, s); | |
818 | msg = xmalloc ((size_t) sz + 1); | |
819 | if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz)) | |
820 | einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n", | |
821 | is->the_bfd); | |
822 | msg[sz] = '\0'; | |
823 | ret = link_info.callbacks->warning (&link_info, msg, | |
824 | (const char *) NULL, | |
825 | is->the_bfd, (asection *) NULL, | |
826 | (bfd_vma) 0); | |
827 | ASSERT (ret); | |
828 | free (msg); | |
829 | ||
830 | /* Clobber the section size, so that we don't waste copying the | |
831 | warning into the output file. */ | |
832 | s->_raw_size = 0; | |
833 | } | |
834 | } | |
835 | } | |
836 | ||
41392f03 AM |
837 | EOF |
838 | fi | |
839 | ||
840 | if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then | |
841 | cat >>e${EMULATION_NAME}.c <<EOF | |
252b5132 | 842 | |
04925e1e AM |
843 | /* Try to open a dynamic archive. This is where we know that ELF |
844 | dynamic libraries have an extension of .so (or .sl on oddball systems | |
845 | like hpux). */ | |
846 | ||
847 | static boolean | |
848 | gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry) | |
849 | const char *arch; | |
850 | search_dirs_type *search; | |
851 | lang_input_statement_type *entry; | |
252b5132 | 852 | { |
04925e1e AM |
853 | const char *filename; |
854 | char *string; | |
252b5132 | 855 | |
04925e1e AM |
856 | if (! entry->is_archive) |
857 | return false; | |
252b5132 | 858 | |
04925e1e | 859 | filename = entry->filename; |
252b5132 | 860 | |
04925e1e AM |
861 | /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION |
862 | is defined, but it does not seem worth the headache to optimize | |
863 | away those two bytes of space. */ | |
864 | string = (char *) xmalloc (strlen (search->name) | |
865 | + strlen (filename) | |
866 | + strlen (arch) | |
867 | #ifdef EXTRA_SHLIB_EXTENSION | |
868 | + strlen (EXTRA_SHLIB_EXTENSION) | |
869 | #endif | |
870 | + sizeof "/lib.so"); | |
871 | ||
872 | sprintf (string, "%s/lib%s%s.so", search->name, filename, arch); | |
873 | ||
874 | #ifdef EXTRA_SHLIB_EXTENSION | |
875 | /* Try the .so extension first. If that fails build a new filename | |
876 | using EXTRA_SHLIB_EXTENSION. */ | |
877 | if (! ldfile_try_open_bfd (string, entry)) | |
878 | sprintf (string, "%s/lib%s%s%s", search->name, | |
879 | filename, arch, EXTRA_SHLIB_EXTENSION); | |
880 | #endif | |
881 | ||
882 | if (! ldfile_try_open_bfd (string, entry)) | |
252b5132 | 883 | { |
04925e1e AM |
884 | free (string); |
885 | return false; | |
886 | } | |
252b5132 | 887 | |
04925e1e | 888 | entry->filename = string; |
252b5132 | 889 | |
04925e1e AM |
890 | /* We have found a dynamic object to include in the link. The ELF |
891 | backend linker will create a DT_NEEDED entry in the .dynamic | |
892 | section naming this file. If this file includes a DT_SONAME | |
893 | entry, it will be used. Otherwise, the ELF linker will just use | |
894 | the name of the file. For an archive found by searching, like | |
895 | this one, the DT_NEEDED entry should consist of just the name of | |
896 | the file, without the path information used to find it. Note | |
897 | that we only need to do this if we have a dynamic object; an | |
898 | archive will never be referenced by a DT_NEEDED entry. | |
252b5132 | 899 | |
04925e1e AM |
900 | FIXME: This approach--using bfd_elf_set_dt_needed_name--is not |
901 | very pretty. I haven't been able to think of anything that is | |
902 | pretty, though. */ | |
903 | if (bfd_check_format (entry->the_bfd, bfd_object) | |
904 | && (entry->the_bfd->flags & DYNAMIC) != 0) | |
905 | { | |
906 | char *needed_name; | |
252b5132 | 907 | |
04925e1e | 908 | ASSERT (entry->is_archive && entry->search_dirs_flag); |
252b5132 | 909 | |
04925e1e AM |
910 | /* Rather than duplicating the logic above. Just use the |
911 | filename we recorded earlier. | |
252b5132 | 912 | |
04925e1e AM |
913 | First strip off everything before the last '/'. */ |
914 | filename = strrchr (entry->filename, '/'); | |
915 | filename++; | |
916 | ||
917 | needed_name = (char *) xmalloc (strlen (filename) + 1); | |
918 | strcpy (needed_name, filename); | |
919 | bfd_elf_set_dt_needed_name (entry->the_bfd, needed_name); | |
920 | } | |
921 | ||
922 | return true; | |
923 | } | |
924 | ||
41392f03 AM |
925 | EOF |
926 | fi | |
927 | cat >>e${EMULATION_NAME}.c <<EOF | |
928 | ||
929 | /* A variant of lang_output_section_find. Used by place_orphan. */ | |
04925e1e | 930 | |
04925e1e AM |
931 | static lang_output_section_statement_type * |
932 | output_rel_find () | |
933 | { | |
934 | lang_statement_union_type *u; | |
935 | lang_output_section_statement_type *lookup; | |
936 | ||
937 | for (u = lang_output_section_statement.head; | |
938 | u != (lang_statement_union_type *) NULL; | |
939 | u = lookup->next) | |
940 | { | |
941 | lookup = &u->output_section_statement; | |
942 | if (strncmp (".rel", lookup->name, 4) == 0 | |
943 | && lookup->bfd_section != NULL | |
944 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) | |
945 | { | |
946 | return lookup; | |
947 | } | |
252b5132 | 948 | } |
04925e1e | 949 | return (lang_output_section_statement_type *) NULL; |
252b5132 RH |
950 | } |
951 | ||
41392f03 AM |
952 | EOF |
953 | ||
954 | if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then | |
955 | cat >>e${EMULATION_NAME}.c <<EOF | |
04925e1e | 956 | |
252b5132 RH |
957 | /* Place an orphan section. We use this to put random SHF_ALLOC |
958 | sections in the right segment. */ | |
959 | ||
41392f03 | 960 | struct orphan_save { |
6a345e87 | 961 | lang_output_section_statement_type *os; |
5ba47421 | 962 | asection **section; |
6a345e87 AM |
963 | lang_statement_union_type **stmt; |
964 | }; | |
252b5132 | 965 | |
252b5132 RH |
966 | static boolean |
967 | gld${EMULATION_NAME}_place_orphan (file, s) | |
968 | lang_input_statement_type *file; | |
969 | asection *s; | |
970 | { | |
aea4bd9d AM |
971 | static struct orphan_save hold_text; |
972 | static struct orphan_save hold_rodata; | |
973 | static struct orphan_save hold_data; | |
974 | static struct orphan_save hold_bss; | |
975 | static struct orphan_save hold_rel; | |
976 | static struct orphan_save hold_interp; | |
6a345e87 | 977 | struct orphan_save *place; |
252b5132 RH |
978 | lang_statement_list_type *old; |
979 | lang_statement_list_type add; | |
980 | etree_type *address; | |
981 | const char *secname, *ps; | |
982 | const char *outsecname; | |
983 | lang_output_section_statement_type *os; | |
984 | ||
aea4bd9d AM |
985 | secname = bfd_get_section_name (s->owner, s); |
986 | ||
252b5132 | 987 | /* Look through the script to see where to place this section. */ |
aea4bd9d | 988 | os = lang_output_section_find (secname); |
252b5132 | 989 | |
aea4bd9d AM |
990 | if (os != NULL |
991 | && os->bfd_section != NULL | |
992 | && ((s->flags ^ os->bfd_section->flags) & (SEC_LOAD | SEC_ALLOC)) == 0) | |
252b5132 RH |
993 | { |
994 | /* We have already placed a section with this name. */ | |
aea4bd9d | 995 | wild_doit (&os->children, s, os, file); |
252b5132 RH |
996 | return true; |
997 | } | |
998 | ||
aea4bd9d AM |
999 | if (hold_text.os == NULL) |
1000 | hold_text.os = lang_output_section_find (".text"); | |
252b5132 RH |
1001 | |
1002 | /* If this is a final link, then always put .gnu.warning.SYMBOL | |
1003 | sections into the .text section to get them out of the way. */ | |
1004 | if (! link_info.shared | |
1005 | && ! link_info.relocateable | |
1006 | && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0 | |
6a345e87 | 1007 | && hold_text.os != NULL) |
252b5132 | 1008 | { |
6a345e87 | 1009 | wild_doit (&hold_text.os->children, s, hold_text.os, file); |
252b5132 RH |
1010 | return true; |
1011 | } | |
1012 | ||
1013 | /* Decide which segment the section should go in based on the | |
1014 | section name and section flags. We put loadable .note sections | |
1015 | right after the .interp section, so that the PT_NOTE segment is | |
1016 | stored right after the program headers where the OS can read it | |
1017 | in the first page. */ | |
aea4bd9d AM |
1018 | #define HAVE_SECTION(hold, name) \ |
1019 | (hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL) | |
1020 | ||
252b5132 RH |
1021 | if (s->flags & SEC_EXCLUDE) |
1022 | return false; | |
5ba47421 AM |
1023 | else if ((s->flags & SEC_ALLOC) == 0) |
1024 | place = NULL; | |
252b5132 | 1025 | else if ((s->flags & SEC_LOAD) != 0 |
6a345e87 | 1026 | && strncmp (secname, ".note", 4) == 0 |
aea4bd9d | 1027 | && HAVE_SECTION (hold_interp, ".interp")) |
6a345e87 | 1028 | place = &hold_interp; |
252b5132 | 1029 | else if ((s->flags & SEC_HAS_CONTENTS) == 0 |
aea4bd9d | 1030 | && HAVE_SECTION (hold_bss, ".bss")) |
6a345e87 | 1031 | place = &hold_bss; |
252b5132 | 1032 | else if ((s->flags & SEC_READONLY) == 0 |
aea4bd9d | 1033 | && HAVE_SECTION (hold_data, ".data")) |
6a345e87 | 1034 | place = &hold_data; |
252b5132 | 1035 | else if (strncmp (secname, ".rel", 4) == 0 |
aea4bd9d AM |
1036 | && (hold_rel.os != NULL |
1037 | || (hold_rel.os = output_rel_find ()) != NULL)) | |
6a345e87 | 1038 | place = &hold_rel; |
252b5132 RH |
1039 | else if ((s->flags & SEC_CODE) == 0 |
1040 | && (s->flags & SEC_READONLY) != 0 | |
aea4bd9d | 1041 | && HAVE_SECTION (hold_rodata, ".rodata")) |
6a345e87 | 1042 | place = &hold_rodata; |
252b5132 | 1043 | else if ((s->flags & SEC_READONLY) != 0 |
6a345e87 AM |
1044 | && hold_text.os != NULL) |
1045 | place = &hold_text; | |
1046 | else | |
01cc8ff8 | 1047 | place = NULL; |
252b5132 | 1048 | |
aea4bd9d AM |
1049 | #undef HAVE_SECTION |
1050 | ||
252b5132 RH |
1051 | /* Choose a unique name for the section. This will be needed if the |
1052 | same section name appears in the input file with different | |
1053 | loadable or allocateable characteristics. */ | |
1054 | outsecname = secname; | |
1055 | if (bfd_get_section_by_name (output_bfd, outsecname) != NULL) | |
1056 | { | |
1057 | unsigned int len; | |
1058 | char *newname; | |
1059 | unsigned int i; | |
1060 | ||
1061 | len = strlen (outsecname); | |
1062 | newname = xmalloc (len + 5); | |
1063 | strcpy (newname, outsecname); | |
1064 | i = 0; | |
1065 | do | |
1066 | { | |
1067 | sprintf (newname + len, "%d", i); | |
1068 | ++i; | |
1069 | } | |
1070 | while (bfd_get_section_by_name (output_bfd, newname) != NULL); | |
1071 | ||
1072 | outsecname = newname; | |
1073 | } | |
1074 | ||
5ba47421 | 1075 | if (place != NULL) |
252b5132 | 1076 | { |
5ba47421 AM |
1077 | /* Start building a list of statements for this section. */ |
1078 | old = stat_ptr; | |
1079 | stat_ptr = &add; | |
1080 | lang_list_init (stat_ptr); | |
1081 | ||
1082 | /* If the name of the section is representable in C, then create | |
1083 | symbols to mark the start and the end of the section. */ | |
1084 | for (ps = outsecname; *ps != '\0'; ps++) | |
1085 | if (! isalnum ((unsigned char) *ps) && *ps != '_') | |
1086 | break; | |
1087 | if (*ps == '\0' && config.build_constructors) | |
1088 | { | |
1089 | char *symname; | |
1090 | etree_type *e_align; | |
1091 | ||
1092 | symname = (char *) xmalloc (ps - outsecname + sizeof "__start_"); | |
1093 | sprintf (symname, "__start_%s", outsecname); | |
1094 | e_align = exp_unop (ALIGN_K, | |
1095 | exp_intop ((bfd_vma) 1 << s->alignment_power)); | |
1096 | lang_add_assignment (exp_assop ('=', symname, e_align)); | |
1097 | } | |
252b5132 RH |
1098 | } |
1099 | ||
01cc8ff8 | 1100 | if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0) |
252b5132 | 1101 | address = exp_intop ((bfd_vma) 0); |
01cc8ff8 AM |
1102 | else |
1103 | address = NULL; | |
252b5132 | 1104 | |
aea4bd9d AM |
1105 | os = lang_enter_output_section_statement (outsecname, address, 0, |
1106 | (bfd_vma) 0, | |
1107 | (etree_type *) NULL, | |
1108 | (etree_type *) NULL, | |
1109 | (etree_type *) NULL); | |
252b5132 | 1110 | |
252b5132 RH |
1111 | wild_doit (&os->children, s, os, file); |
1112 | ||
20d04697 L |
1113 | lang_leave_output_section_statement |
1114 | ((bfd_vma) 0, "*default*", | |
1115 | (struct lang_output_section_phdr_list *) NULL, "*default*"); | |
1116 | ||
5ba47421 | 1117 | if (place != NULL) |
252b5132 | 1118 | { |
5ba47421 | 1119 | asection *snew, **pps; |
252b5132 | 1120 | |
5ba47421 | 1121 | stat_ptr = &add; |
252b5132 | 1122 | |
5ba47421 AM |
1123 | if (*ps == '\0' && config.build_constructors) |
1124 | { | |
1125 | char *symname; | |
1126 | ||
1127 | symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_"); | |
1128 | sprintf (symname, "__stop_%s", outsecname); | |
1129 | lang_add_assignment (exp_assop ('=', symname, | |
1130 | exp_nameop (NAME, "."))); | |
1131 | } | |
1132 | stat_ptr = old; | |
1133 | ||
1134 | snew = os->bfd_section; | |
1135 | if (place->os->bfd_section != NULL || place->section != NULL) | |
1136 | { | |
1137 | /* Shuffle the section to make the output file look neater. */ | |
1138 | if (place->section == NULL) | |
1139 | { | |
1140 | #if 0 | |
1141 | /* Finding the end of the list is a little tricky. We | |
1142 | make a wild stab at it by comparing section flags. */ | |
1143 | flagword first_flags = place->os->bfd_section->flags; | |
1144 | for (pps = &place->os->bfd_section->next; | |
1145 | *pps != NULL && (*pps)->flags == first_flags; | |
1146 | pps = &(*pps)->next) | |
1147 | ; | |
1148 | place->section = pps; | |
1149 | #else | |
1150 | /* Put orphans after the first section on the list. */ | |
1151 | place->section = &place->os->bfd_section->next; | |
1152 | #endif | |
1153 | } | |
1154 | ||
1155 | /* Unlink the section. */ | |
1156 | for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next) | |
1157 | ; | |
1158 | *pps = snew->next; | |
1159 | ||
1160 | /* Now tack it on to the "place->os" section list. */ | |
1161 | snew->next = *place->section; | |
1162 | *place->section = snew; | |
1163 | } | |
1164 | place->section = &snew->next; /* Save the end of this list. */ | |
1165 | ||
1166 | if (place->stmt == NULL) | |
01cc8ff8 AM |
1167 | { |
1168 | /* Put the new statement list right at the head. */ | |
1169 | *add.tail = place->os->header.next; | |
1170 | place->os->header.next = add.head; | |
1171 | } | |
1172 | else | |
1173 | { | |
1174 | /* Put it after the last orphan statement we added. */ | |
1175 | *add.tail = *place->stmt; | |
1176 | *place->stmt = add.head; | |
1177 | } | |
5ba47421 | 1178 | place->stmt = add.tail; /* Save the end of this list. */ |
6a345e87 | 1179 | } |
252b5132 RH |
1180 | |
1181 | return true; | |
1182 | } | |
1183 | ||
41392f03 AM |
1184 | EOF |
1185 | fi | |
1186 | ||
1187 | if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then | |
1188 | cat >>e${EMULATION_NAME}.c <<EOF | |
252b5132 RH |
1189 | |
1190 | static char * | |
41392f03 | 1191 | gld${EMULATION_NAME}_get_script (isfile) |
252b5132 RH |
1192 | int *isfile; |
1193 | EOF | |
1194 | ||
1195 | if test -n "$COMPILE_IN" | |
1196 | then | |
1197 | # Scripts compiled in. | |
1198 | ||
1199 | # sed commands to quote an ld script as a C string. | |
597e2591 | 1200 | sc="-f stringify.sed" |
252b5132 RH |
1201 | |
1202 | cat >>e${EMULATION_NAME}.c <<EOF | |
60bcf0fa | 1203 | { |
252b5132 RH |
1204 | *isfile = 0; |
1205 | ||
1206 | if (link_info.relocateable == true && config.build_constructors == true) | |
597e2591 | 1207 | return |
252b5132 | 1208 | EOF |
597e2591 ILT |
1209 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c |
1210 | echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c | |
1211 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c | |
1212 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c | |
1213 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c | |
1214 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c | |
1215 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c | |
252b5132 RH |
1216 | |
1217 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then | |
597e2591 ILT |
1218 | echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c |
1219 | sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c | |
252b5132 RH |
1220 | fi |
1221 | ||
597e2591 ILT |
1222 | echo ' ; else return' >> e${EMULATION_NAME}.c |
1223 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c | |
1224 | echo '; }' >> e${EMULATION_NAME}.c | |
252b5132 RH |
1225 | |
1226 | else | |
1227 | # Scripts read from the filesystem. | |
1228 | ||
1229 | cat >>e${EMULATION_NAME}.c <<EOF | |
60bcf0fa | 1230 | { |
252b5132 RH |
1231 | *isfile = 1; |
1232 | ||
1233 | if (link_info.relocateable == true && config.build_constructors == true) | |
1234 | return "ldscripts/${EMULATION_NAME}.xu"; | |
1235 | else if (link_info.relocateable == true) | |
1236 | return "ldscripts/${EMULATION_NAME}.xr"; | |
1237 | else if (!config.text_read_only) | |
1238 | return "ldscripts/${EMULATION_NAME}.xbn"; | |
1239 | else if (!config.magic_demand_paged) | |
1240 | return "ldscripts/${EMULATION_NAME}.xn"; | |
1241 | else if (link_info.shared) | |
1242 | return "ldscripts/${EMULATION_NAME}.xs"; | |
1243 | else | |
1244 | return "ldscripts/${EMULATION_NAME}.x"; | |
1245 | } | |
252b5132 | 1246 | |
3b108066 | 1247 | EOF |
41392f03 AM |
1248 | fi |
1249 | fi | |
3b108066 | 1250 | |
41392f03 | 1251 | if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then |
3b108066 | 1252 | |
4b209b22 | 1253 | if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then |
3b108066 | 1254 | |
e0ee487b L |
1255 | if test -n "$PARSE_AND_LIST_PROLOGUE" ; then |
1256 | cat >>e${EMULATION_NAME}.c <<EOF | |
1257 | $PARSE_AND_LIST_PROLOGUE | |
1258 | EOF | |
1259 | fi | |
1260 | ||
e0ee487b L |
1261 | cat >>e${EMULATION_NAME}.c <<EOF |
1262 | ||
1263 | #include "getopt.h" | |
1264 | ||
6c1439be L |
1265 | #define OPTION_DISABLE_NEW_DTAGS (400) |
1266 | #define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1) | |
1267 | ||
e0ee487b L |
1268 | static struct option longopts[] = |
1269 | { | |
1270 | EOF | |
e0ee487b L |
1271 | |
1272 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
1273 | cat >>e${EMULATION_NAME}.c <<EOF | |
699845ef L |
1274 | /* getopt allows abbreviations, so we do this to stop it from |
1275 | treating -d/-e as abbreviations for these options. */ | |
6c1439be | 1276 | {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS}, |
699845ef L |
1277 | {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS}, |
1278 | {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS}, | |
6c1439be | 1279 | {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS}, |
e0ee487b L |
1280 | EOF |
1281 | fi | |
1282 | ||
1283 | if test -n "$PARSE_AND_LIST_LONGOPTS" ; then | |
1284 | cat >>e${EMULATION_NAME}.c <<EOF | |
1285 | $PARSE_AND_LIST_LONGOPTS | |
1286 | EOF | |
1287 | fi | |
1288 | ||
e0ee487b L |
1289 | cat >>e${EMULATION_NAME}.c <<EOF |
1290 | {NULL, no_argument, NULL, 0} | |
1291 | }; | |
1292 | ||
04925e1e | 1293 | |
4b209b22 | 1294 | static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **)); |
41392f03 | 1295 | |
e0ee487b | 1296 | static int |
4b209b22 | 1297 | gld${EMULATION_NAME}_parse_args (argc, argv) |
e0ee487b L |
1298 | int argc; |
1299 | char ** argv; | |
1300 | { | |
4b209b22 AM |
1301 | int longind; |
1302 | int optc; | |
1303 | static int prevoptind = -1; | |
e0ee487b L |
1304 | int prevopterr = opterr; |
1305 | int wanterror; | |
e0ee487b | 1306 | |
4b209b22 | 1307 | if (prevoptind != optind) |
e0ee487b L |
1308 | opterr = 0; |
1309 | ||
4b209b22 AM |
1310 | wanterror = opterr; |
1311 | prevoptind = optind; | |
1312 | ||
41392f03 AM |
1313 | optc = getopt_long_only (argc, argv, |
1314 | "-${PARSE_AND_LIST_SHORTOPTS}z:", longopts, | |
1315 | &longind); | |
e0ee487b L |
1316 | opterr = prevopterr; |
1317 | ||
1318 | switch (optc) | |
1319 | { | |
1320 | default: | |
1321 | if (wanterror) | |
1322 | xexit (1); | |
4b209b22 | 1323 | optind = prevoptind; |
e0ee487b | 1324 | return 0; |
6c1439be | 1325 | |
e0ee487b | 1326 | EOF |
e0ee487b L |
1327 | |
1328 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
1329 | cat >>e${EMULATION_NAME}.c <<EOF | |
6c1439be L |
1330 | case OPTION_DISABLE_NEW_DTAGS: |
1331 | link_info.new_dtags = false; | |
1332 | break; | |
1333 | ||
1334 | case OPTION_ENABLE_NEW_DTAGS: | |
1335 | link_info.new_dtags = true; | |
1336 | break; | |
1337 | ||
e0ee487b L |
1338 | case 'z': |
1339 | if (strcmp (optarg, "initfirst") == 0) | |
1340 | link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST; | |
1341 | else if (strcmp (optarg, "interpose") == 0) | |
1342 | link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE; | |
1343 | else if (strcmp (optarg, "loadfltr") == 0) | |
1344 | link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR; | |
1345 | else if (strcmp (optarg, "nodefaultlib") == 0) | |
1346 | link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB; | |
1347 | else if (strcmp (optarg, "nodelete") == 0) | |
1348 | link_info.flags_1 |= (bfd_vma) DF_1_NODELETE; | |
1349 | else if (strcmp (optarg, "nodlopen") == 0) | |
1350 | link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN; | |
1351 | else if (strcmp (optarg, "nodump") == 0) | |
1352 | link_info.flags_1 |= (bfd_vma) DF_1_NODUMP; | |
1353 | else if (strcmp (optarg, "now") == 0) | |
1354 | { | |
1355 | link_info.flags |= (bfd_vma) DF_BIND_NOW; | |
1356 | link_info.flags_1 |= (bfd_vma) DF_1_NOW; | |
1357 | } | |
1358 | else if (strcmp (optarg, "origin") == 0) | |
1359 | { | |
1360 | link_info.flags |= (bfd_vma) DF_ORIGIN; | |
1361 | link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN; | |
1362 | } | |
1363 | /* What about the other Solaris -z options? FIXME. */ | |
6c1439be | 1364 | break; |
e0ee487b L |
1365 | EOF |
1366 | fi | |
1367 | ||
1368 | if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then | |
1369 | cat >>e${EMULATION_NAME}.c <<EOF | |
1370 | $PARSE_AND_LIST_ARGS_CASES | |
1371 | EOF | |
1372 | fi | |
1373 | ||
e0ee487b L |
1374 | cat >>e${EMULATION_NAME}.c <<EOF |
1375 | } | |
1376 | ||
1377 | return 1; | |
1378 | } | |
1379 | ||
41392f03 AM |
1380 | EOF |
1381 | fi | |
1382 | ||
4b209b22 | 1383 | if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then |
41392f03 AM |
1384 | cat >>e${EMULATION_NAME}.c <<EOF |
1385 | ||
4b209b22 | 1386 | static void gld${EMULATION_NAME}_list_options PARAMS ((FILE * file)); |
04925e1e | 1387 | |
e0ee487b | 1388 | static void |
4b209b22 | 1389 | gld${EMULATION_NAME}_list_options (file) |
e0ee487b L |
1390 | FILE * file; |
1391 | { | |
1392 | EOF | |
e0ee487b L |
1393 | |
1394 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
1395 | cat >>e${EMULATION_NAME}.c <<EOF | |
6c1439be L |
1396 | fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n")); |
1397 | fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n")); | |
e0ee487b L |
1398 | fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at rutime\n")); |
1399 | fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but execuable\n")); | |
1400 | fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n")); | |
1401 | fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n")); | |
1402 | fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n")); | |
1403 | fprintf (file, _(" -z nodlopen\t\tMark DSO not availale to dlopen\n")); | |
1404 | fprintf (file, _(" -z nodump\t\tMark DSO not availale to dldump\n")); | |
1405 | fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n")); | |
1406 | fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n")); | |
1407 | fprintf (file, _("\t\t\t at runtime\n")); | |
19e3be22 | 1408 | fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n")); |
e0ee487b L |
1409 | EOF |
1410 | fi | |
1411 | ||
1412 | if test -n "$PARSE_AND_LIST_OPTIONS" ; then | |
1413 | cat >>e${EMULATION_NAME}.c <<EOF | |
1414 | $PARSE_AND_LIST_OPTIONS | |
1415 | EOF | |
1416 | fi | |
1417 | ||
e0ee487b L |
1418 | cat >>e${EMULATION_NAME}.c <<EOF |
1419 | } | |
1420 | EOF | |
e0ee487b L |
1421 | |
1422 | if test -n "$PARSE_AND_LIST_EPILOGUE" ; then | |
1423 | cat >>e${EMULATION_NAME}.c <<EOF | |
1424 | $PARSE_AND_LIST_EPILOGUE | |
1425 | EOF | |
1426 | fi | |
41392f03 AM |
1427 | fi |
1428 | else | |
4b209b22 | 1429 | if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then |
41392f03 | 1430 | cat >>e${EMULATION_NAME}.c <<EOF |
4b209b22 | 1431 | #define gld${EMULATION_NAME}_parse_args NULL |
41392f03 AM |
1432 | EOF |
1433 | fi | |
4b209b22 | 1434 | if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then |
41392f03 | 1435 | cat >>e${EMULATION_NAME}.c <<EOF |
4b209b22 | 1436 | #define gld${EMULATION_NAME}_list_options NULL |
41392f03 AM |
1437 | EOF |
1438 | fi | |
1439 | fi | |
e0ee487b | 1440 | |
252b5132 RH |
1441 | cat >>e${EMULATION_NAME}.c <<EOF |
1442 | ||
60bcf0fa | 1443 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = |
252b5132 | 1444 | { |
41392f03 AM |
1445 | ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse}, |
1446 | ${LDEMUL_SYSLIB-syslib_default}, | |
1447 | ${LDEMUL_HLL-hll_default}, | |
1448 | ${LDEMUL_AFTER_PARSE-after_parse_default}, | |
1449 | ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open}, | |
1450 | ${LDEMUL_AFTER_ALLOCATION-after_allocation_default}, | |
1451 | ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default}, | |
1452 | ${LDEMUL_CHOOSE_TARGET-ldemul_default_target}, | |
1453 | ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation}, | |
1454 | ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script}, | |
252b5132 RH |
1455 | "${EMULATION_NAME}", |
1456 | "${OUTPUT_FORMAT}", | |
41392f03 AM |
1457 | ${LDEMUL_FINISH-NULL}, |
1458 | ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL}, | |
1459 | ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive}, | |
1460 | ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan}, | |
1461 | ${LDEMUL_SET_SYMBOLS-NULL}, | |
4b209b22 | 1462 | ${LDEMUL_PARSE_ARGS-gld${EMULATION_NAME}_parse_args}, |
41392f03 | 1463 | ${LDEMUL_UNRECOGNIZED_FILE-NULL}, |
4b209b22 | 1464 | ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options}, |
41392f03 AM |
1465 | ${LDEMUL_RECOGNIZED_FILE-NULL}, |
1466 | ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL}, | |
252b5132 RH |
1467 | }; |
1468 | EOF |