Commit | Line | Data |
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252b5132 RH |
1 | # This shell script emits a C file. -*- C -*- |
2 | # It does some substitutions. | |
3 | # This file is now misnamed, because it supports both 32 bit and 64 bit | |
4 | # ELF emulations. | |
5 | test -z "${ELFSIZE}" && ELFSIZE=32 | |
6 | cat >e${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 ${EMULATION_NAME} | |
87f2a346 ILT |
10 | Copyright (C) 1991, 93, 94, 95, 96, 97, 98, 1999 |
11 | Free Software Foundation, Inc. | |
252b5132 RH |
12 | Written by Steve Chamberlain <sac@cygnus.com> |
13 | ELF support by Ian Lance Taylor <ian@cygnus.com> | |
14 | ||
15 | This file is part of GLD, the Gnu Linker. | |
16 | ||
17 | This program is free software; you can redistribute it and/or modify | |
18 | it under the terms of the GNU General Public License as published by | |
19 | the Free Software Foundation; either version 2 of the License, or | |
20 | (at your option) any later version. | |
21 | ||
22 | This program is distributed in the hope that it will be useful, | |
23 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | GNU General Public License for more details. | |
26 | ||
27 | You should have received a copy of the GNU General Public License | |
28 | along with this program; if not, write to the Free Software | |
29 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
30 | ||
31 | #define TARGET_IS_${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" | |
42 | #include "ldemul.h" | |
43 | #include "ldfile.h" | |
44 | #include "ldmisc.h" | |
45 | #include "ldexp.h" | |
46 | #include "ldlang.h" | |
47 | #include "ldgram.h" | |
48 | ||
49 | static void gld${EMULATION_NAME}_before_parse PARAMS ((void)); | |
50 | static boolean gld${EMULATION_NAME}_open_dynamic_archive | |
51 | PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *)); | |
52 | static void gld${EMULATION_NAME}_after_open PARAMS ((void)); | |
53 | static void gld${EMULATION_NAME}_check_needed | |
54 | PARAMS ((lang_input_statement_type *)); | |
55 | static void gld${EMULATION_NAME}_stat_needed | |
56 | PARAMS ((lang_input_statement_type *)); | |
57 | static boolean gld${EMULATION_NAME}_search_needed | |
58 | PARAMS ((const char *, const char *, int)); | |
59 | static boolean gld${EMULATION_NAME}_try_needed PARAMS ((const char *, int)); | |
60 | static void gld${EMULATION_NAME}_vercheck | |
61 | PARAMS ((lang_input_statement_type *)); | |
62 | static void gld${EMULATION_NAME}_before_allocation PARAMS ((void)); | |
63 | static void gld${EMULATION_NAME}_find_statement_assignment | |
64 | PARAMS ((lang_statement_union_type *)); | |
65 | static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *)); | |
66 | static boolean gld${EMULATION_NAME}_place_orphan | |
67 | PARAMS ((lang_input_statement_type *, asection *)); | |
aea4bd9d | 68 | static lang_output_section_statement_type *output_rel_find PARAMS ((void)); |
252b5132 RH |
69 | static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile)); |
70 | ||
71 | static void | |
72 | gld${EMULATION_NAME}_before_parse() | |
73 | { | |
74 | ldfile_output_architecture = bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`; | |
75 | config.dynamic_link = ${DYNAMIC_LINK-true}; | |
76 | config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo true ; else echo false ; fi`; | |
77 | } | |
78 | ||
79 | /* Try to open a dynamic archive. This is where we know that ELF | |
070f1aed JL |
80 | dynamic libraries have an extension of .so (or .sl on oddball systems |
81 | like hpux). */ | |
252b5132 RH |
82 | |
83 | static boolean | |
84 | gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry) | |
85 | const char *arch; | |
86 | search_dirs_type *search; | |
87 | lang_input_statement_type *entry; | |
88 | { | |
89 | const char *filename; | |
90 | char *string; | |
91 | ||
92 | if (! entry->is_archive) | |
93 | return false; | |
94 | ||
95 | filename = entry->filename; | |
96 | ||
93a6d436 JL |
97 | /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION |
98 | is defined, but it does not seem worth the headache to optimize | |
99 | away those two bytes of space. */ | |
252b5132 RH |
100 | string = (char *) xmalloc (strlen (search->name) |
101 | + strlen (filename) | |
102 | + strlen (arch) | |
93a6d436 JL |
103 | #ifdef EXTRA_SHLIB_EXTENSION |
104 | + strlen (EXTRA_SHLIB_EXTENSION) | |
105 | #endif | |
252b5132 RH |
106 | + sizeof "/lib.so"); |
107 | ||
108 | sprintf (string, "%s/lib%s%s.so", search->name, filename, arch); | |
109 | ||
93a6d436 JL |
110 | #ifdef EXTRA_SHLIB_EXTENSION |
111 | /* Try the .so extension first. If that fails build a new filename | |
112 | using EXTRA_SHLIB_EXTENSION. */ | |
113 | if (! ldfile_try_open_bfd (string, entry)) | |
114 | sprintf (string, "%s/lib%s%s%s", search->name, | |
115 | filename, arch, EXTRA_SHLIB_EXTENSION); | |
116 | #endif | |
117 | ||
252b5132 RH |
118 | if (! ldfile_try_open_bfd (string, entry)) |
119 | { | |
93a6d436 JL |
120 | free (string); |
121 | return false; | |
252b5132 RH |
122 | } |
123 | ||
124 | entry->filename = string; | |
125 | ||
126 | /* We have found a dynamic object to include in the link. The ELF | |
127 | backend linker will create a DT_NEEDED entry in the .dynamic | |
128 | section naming this file. If this file includes a DT_SONAME | |
129 | entry, it will be used. Otherwise, the ELF linker will just use | |
130 | the name of the file. For an archive found by searching, like | |
131 | this one, the DT_NEEDED entry should consist of just the name of | |
132 | the file, without the path information used to find it. Note | |
133 | that we only need to do this if we have a dynamic object; an | |
134 | archive will never be referenced by a DT_NEEDED entry. | |
135 | ||
136 | FIXME: This approach--using bfd_elf_set_dt_needed_name--is not | |
137 | very pretty. I haven't been able to think of anything that is | |
138 | pretty, though. */ | |
139 | if (bfd_check_format (entry->the_bfd, bfd_object) | |
140 | && (entry->the_bfd->flags & DYNAMIC) != 0) | |
141 | { | |
93a6d436 | 142 | char *needed_name; |
252b5132 RH |
143 | |
144 | ASSERT (entry->is_archive && entry->search_dirs_flag); | |
d3cc5bd6 JL |
145 | |
146 | /* Rather than duplicating the logic above. Just use the | |
93a6d436 | 147 | filename we recorded earlier. |
d3cc5bd6 JL |
148 | |
149 | First strip off everything before the last '/'. */ | |
150 | filename = strrchr (entry->filename, '/'); | |
151 | filename++; | |
152 | ||
9f5b33d7 | 153 | needed_name = (char *) xmalloc (strlen (filename) + 1); |
d3cc5bd6 | 154 | strcpy (needed_name, filename); |
252b5132 RH |
155 | bfd_elf_set_dt_needed_name (entry->the_bfd, needed_name); |
156 | } | |
157 | ||
158 | return true; | |
159 | } | |
160 | ||
161 | EOF | |
162 | if [ "x${host}" = "x${target}" ] ; then | |
f97f7300 RH |
163 | case " ${EMULATION_LIBPATH} " in |
164 | *" ${EMULATION_NAME} "*) | |
252b5132 RH |
165 | cat >>e${EMULATION_NAME}.c <<EOF |
166 | ||
167 | /* For a native linker, check the file /etc/ld.so.conf for directories | |
168 | in which we may find shared libraries. /etc/ld.so.conf is really | |
169 | only meaningful on Linux, but we check it on other systems anyhow. */ | |
170 | ||
171 | static boolean gld${EMULATION_NAME}_check_ld_so_conf | |
172 | PARAMS ((const char *, int)); | |
173 | ||
174 | static boolean | |
175 | gld${EMULATION_NAME}_check_ld_so_conf (name, force) | |
176 | const char *name; | |
177 | int force; | |
178 | { | |
179 | static boolean initialized; | |
180 | static char *ld_so_conf; | |
181 | ||
182 | if (! initialized) | |
183 | { | |
184 | FILE *f; | |
185 | ||
186 | f = fopen ("/etc/ld.so.conf", FOPEN_RT); | |
187 | if (f != NULL) | |
188 | { | |
189 | char *b; | |
190 | size_t len, alloc; | |
191 | int c; | |
192 | ||
193 | len = 0; | |
194 | alloc = 100; | |
195 | b = (char *) xmalloc (alloc); | |
196 | ||
197 | while ((c = getc (f)) != EOF) | |
198 | { | |
199 | if (len + 1 >= alloc) | |
200 | { | |
201 | alloc *= 2; | |
202 | b = (char *) xrealloc (b, alloc); | |
203 | } | |
204 | if (c != ':' | |
205 | && c != ' ' | |
206 | && c != '\t' | |
207 | && c != '\n' | |
208 | && c != ',') | |
209 | { | |
210 | b[len] = c; | |
211 | ++len; | |
212 | } | |
213 | else | |
214 | { | |
215 | if (len > 0 && b[len - 1] != ':') | |
216 | { | |
217 | b[len] = ':'; | |
218 | ++len; | |
219 | } | |
220 | } | |
221 | } | |
222 | ||
223 | if (len > 0 && b[len - 1] == ':') | |
224 | --len; | |
225 | ||
226 | if (len > 0) | |
227 | b[len] = '\0'; | |
228 | else | |
229 | { | |
230 | free (b); | |
231 | b = NULL; | |
232 | } | |
233 | ||
234 | fclose (f); | |
235 | ||
236 | ld_so_conf = b; | |
237 | } | |
238 | ||
239 | initialized = true; | |
240 | } | |
241 | ||
242 | if (ld_so_conf == NULL) | |
243 | return false; | |
244 | ||
245 | return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force); | |
246 | } | |
247 | ||
248 | EOF | |
f97f7300 RH |
249 | ;; |
250 | esac | |
252b5132 RH |
251 | fi |
252 | cat >>e${EMULATION_NAME}.c <<EOF | |
253 | ||
254 | /* These variables are required to pass information back and forth | |
255 | between after_open and check_needed and stat_needed and vercheck. */ | |
256 | ||
257 | static struct bfd_link_needed_list *global_needed; | |
258 | static struct stat global_stat; | |
259 | static boolean global_found; | |
260 | static struct bfd_link_needed_list *global_vercheck_needed; | |
261 | static boolean global_vercheck_failed; | |
262 | ||
263 | /* This is called after all the input files have been opened. */ | |
264 | ||
265 | static void | |
266 | gld${EMULATION_NAME}_after_open () | |
267 | { | |
268 | struct bfd_link_needed_list *needed, *l; | |
269 | ||
270 | /* We only need to worry about this when doing a final link. */ | |
271 | if (link_info.relocateable || link_info.shared) | |
272 | return; | |
273 | ||
274 | /* Get the list of files which appear in DT_NEEDED entries in | |
275 | dynamic objects included in the link (often there will be none). | |
276 | For each such file, we want to track down the corresponding | |
277 | library, and include the symbol table in the link. This is what | |
278 | the runtime dynamic linker will do. Tracking the files down here | |
279 | permits one dynamic object to include another without requiring | |
280 | special action by the person doing the link. Note that the | |
281 | needed list can actually grow while we are stepping through this | |
282 | loop. */ | |
283 | needed = bfd_elf_get_needed_list (output_bfd, &link_info); | |
284 | for (l = needed; l != NULL; l = l->next) | |
285 | { | |
286 | struct bfd_link_needed_list *ll; | |
287 | int force; | |
288 | ||
289 | /* If we've already seen this file, skip it. */ | |
290 | for (ll = needed; ll != l; ll = ll->next) | |
291 | if (strcmp (ll->name, l->name) == 0) | |
292 | break; | |
293 | if (ll != l) | |
294 | continue; | |
295 | ||
296 | /* See if this file was included in the link explicitly. */ | |
297 | global_needed = l; | |
298 | global_found = false; | |
299 | lang_for_each_input_file (gld${EMULATION_NAME}_check_needed); | |
300 | if (global_found) | |
301 | continue; | |
302 | ||
303 | /* We need to find this file and include the symbol table. We | |
304 | want to search for the file in the same way that the dynamic | |
305 | linker will search. That means that we want to use | |
306 | rpath_link, rpath, then the environment variable | |
307 | LD_LIBRARY_PATH (native only), then the linker script | |
308 | LIB_SEARCH_DIRS. We do not search using the -L arguments. | |
309 | ||
310 | We search twice. The first time, we skip objects which may | |
311 | introduce version mismatches. The second time, we force | |
312 | their use. See gld${EMULATION_NAME}_vercheck comment. */ | |
313 | for (force = 0; force < 2; force++) | |
314 | { | |
315 | const char *lib_path; | |
316 | size_t len; | |
317 | search_dirs_type *search; | |
318 | ||
319 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link, | |
320 | l->name, force)) | |
321 | break; | |
322 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath, | |
323 | l->name, force)) | |
324 | break; | |
325 | if (command_line.rpath_link == NULL | |
326 | && command_line.rpath == NULL) | |
327 | { | |
328 | lib_path = (const char *) getenv ("LD_RUN_PATH"); | |
329 | if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, | |
330 | force)) | |
331 | break; | |
332 | } | |
333 | EOF | |
334 | if [ "x${host}" = "x${target}" ] ; then | |
f97f7300 RH |
335 | case " ${EMULATION_LIBPATH} " in |
336 | *" ${EMULATION_NAME} "*) | |
252b5132 RH |
337 | cat >>e${EMULATION_NAME}.c <<EOF |
338 | lib_path = (const char *) getenv ("LD_LIBRARY_PATH"); | |
339 | if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force)) | |
340 | break; | |
341 | EOF | |
f97f7300 RH |
342 | ;; |
343 | esac | |
252b5132 RH |
344 | fi |
345 | cat >>e${EMULATION_NAME}.c <<EOF | |
346 | len = strlen (l->name); | |
347 | for (search = search_head; search != NULL; search = search->next) | |
348 | { | |
349 | char *filename; | |
350 | ||
351 | if (search->cmdline) | |
352 | continue; | |
353 | filename = (char *) xmalloc (strlen (search->name) + len + 2); | |
354 | sprintf (filename, "%s/%s", search->name, l->name); | |
355 | if (gld${EMULATION_NAME}_try_needed (filename, force)) | |
356 | break; | |
357 | free (filename); | |
358 | } | |
359 | if (search != NULL) | |
360 | break; | |
361 | EOF | |
362 | if [ "x${host}" = "x${target}" ] ; then | |
f97f7300 RH |
363 | case " ${EMULATION_LIBPATH} " in |
364 | *" ${EMULATION_NAME} "*) | |
252b5132 RH |
365 | cat >>e${EMULATION_NAME}.c <<EOF |
366 | if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force)) | |
367 | break; | |
368 | EOF | |
f97f7300 RH |
369 | ;; |
370 | esac | |
252b5132 RH |
371 | fi |
372 | cat >>e${EMULATION_NAME}.c <<EOF | |
373 | } | |
374 | ||
375 | if (force < 2) | |
376 | continue; | |
377 | ||
378 | einfo ("%P: warning: %s, needed by %B, not found (try using --rpath)\n", | |
379 | l->name, l->by); | |
380 | } | |
381 | } | |
382 | ||
383 | /* Search for a needed file in a path. */ | |
384 | ||
385 | static boolean | |
386 | gld${EMULATION_NAME}_search_needed (path, name, force) | |
387 | const char *path; | |
388 | const char *name; | |
389 | int force; | |
390 | { | |
391 | const char *s; | |
392 | size_t len; | |
393 | ||
394 | if (path == NULL || *path == '\0') | |
395 | return false; | |
396 | len = strlen (name); | |
397 | while (1) | |
398 | { | |
399 | char *filename, *sset; | |
400 | ||
401 | s = strchr (path, ':'); | |
402 | if (s == NULL) | |
403 | s = path + strlen (path); | |
404 | ||
405 | filename = (char *) xmalloc (s - path + len + 2); | |
406 | if (s == path) | |
407 | sset = filename; | |
408 | else | |
409 | { | |
410 | memcpy (filename, path, s - path); | |
411 | filename[s - path] = '/'; | |
412 | sset = filename + (s - path) + 1; | |
413 | } | |
414 | strcpy (sset, name); | |
415 | ||
416 | if (gld${EMULATION_NAME}_try_needed (filename, force)) | |
417 | return true; | |
418 | ||
419 | free (filename); | |
420 | ||
421 | if (*s == '\0') | |
422 | break; | |
423 | path = s + 1; | |
424 | } | |
425 | ||
60bcf0fa | 426 | return false; |
252b5132 RH |
427 | } |
428 | ||
429 | /* This function is called for each possible name for a dynamic object | |
430 | named by a DT_NEEDED entry. The FORCE parameter indicates whether | |
431 | to skip the check for a conflicting version. */ | |
432 | ||
433 | static boolean | |
434 | gld${EMULATION_NAME}_try_needed (name, force) | |
435 | const char *name; | |
436 | int force; | |
437 | { | |
438 | bfd *abfd; | |
439 | ||
440 | abfd = bfd_openr (name, bfd_get_target (output_bfd)); | |
441 | if (abfd == NULL) | |
442 | return false; | |
443 | if (! bfd_check_format (abfd, bfd_object)) | |
444 | { | |
445 | (void) bfd_close (abfd); | |
446 | return false; | |
447 | } | |
448 | if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0) | |
449 | { | |
450 | (void) bfd_close (abfd); | |
451 | return false; | |
452 | } | |
453 | ||
454 | /* Check whether this object would include any conflicting library | |
455 | versions. If FORCE is set, then we skip this check; we use this | |
456 | the second time around, if we couldn't find any compatible | |
457 | instance of the shared library. */ | |
458 | ||
459 | if (! force) | |
460 | { | |
461 | struct bfd_link_needed_list *needed; | |
462 | ||
463 | if (! bfd_elf_get_bfd_needed_list (abfd, &needed)) | |
464 | einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd); | |
465 | ||
466 | if (needed != NULL) | |
467 | { | |
468 | global_vercheck_needed = needed; | |
469 | global_vercheck_failed = false; | |
470 | lang_for_each_input_file (gld${EMULATION_NAME}_vercheck); | |
471 | if (global_vercheck_failed) | |
472 | { | |
473 | (void) bfd_close (abfd); | |
474 | /* Return false to force the caller to move on to try | |
475 | another file on the search path. */ | |
476 | return false; | |
477 | } | |
478 | ||
479 | /* But wait! It gets much worse. On Linux, if a shared | |
480 | library does not use libc at all, we are supposed to skip | |
481 | it the first time around in case we encounter a shared | |
482 | library later on with the same name which does use the | |
483 | version of libc that we want. This is much too horrible | |
484 | to use on any system other than Linux. */ | |
485 | ||
486 | EOF | |
487 | case ${target} in | |
488 | *-*-linux-gnu*) | |
489 | cat >>e${EMULATION_NAME}.c <<EOF | |
490 | { | |
491 | struct bfd_link_needed_list *l; | |
492 | ||
493 | for (l = needed; l != NULL; l = l->next) | |
494 | if (strncmp (l->name, "libc.so", 7) == 0) | |
495 | break; | |
496 | if (l == NULL) | |
497 | { | |
498 | (void) bfd_close (abfd); | |
499 | return false; | |
500 | } | |
501 | } | |
502 | ||
503 | EOF | |
504 | ;; | |
505 | esac | |
506 | cat >>e${EMULATION_NAME}.c <<EOF | |
507 | } | |
508 | } | |
509 | ||
510 | /* We've found a dynamic object matching the DT_NEEDED entry. */ | |
511 | ||
512 | /* We have already checked that there is no other input file of the | |
513 | same name. We must now check again that we are not including the | |
514 | same file twice. We need to do this because on many systems | |
515 | libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will | |
516 | reference libc.so.1. If we have already included libc.so, we | |
517 | don't want to include libc.so.1 if they are the same file, and we | |
518 | can only check that using stat. */ | |
519 | ||
520 | if (bfd_stat (abfd, &global_stat) != 0) | |
521 | einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd); | |
522 | global_found = false; | |
523 | lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed); | |
524 | if (global_found) | |
525 | { | |
526 | /* Return true to indicate that we found the file, even though | |
527 | we aren't going to do anything with it. */ | |
528 | return true; | |
529 | } | |
530 | ||
531 | /* Tell the ELF backend that don't want the output file to have a | |
532 | DT_NEEDED entry for this file. */ | |
533 | bfd_elf_set_dt_needed_name (abfd, ""); | |
534 | ||
535 | /* Add this file into the symbol table. */ | |
536 | if (! bfd_link_add_symbols (abfd, &link_info)) | |
537 | einfo ("%F%B: could not read symbols: %E\n", abfd); | |
538 | ||
539 | return true; | |
540 | } | |
541 | ||
542 | /* See if an input file matches a DT_NEEDED entry by name. */ | |
543 | ||
544 | static void | |
545 | gld${EMULATION_NAME}_check_needed (s) | |
546 | lang_input_statement_type *s; | |
547 | { | |
548 | if (global_found) | |
549 | return; | |
550 | ||
551 | if (s->filename != NULL | |
552 | && strcmp (s->filename, global_needed->name) == 0) | |
553 | { | |
554 | global_found = true; | |
555 | return; | |
556 | } | |
557 | ||
558 | if (s->the_bfd != NULL) | |
559 | { | |
560 | const char *soname; | |
561 | ||
562 | soname = bfd_elf_get_dt_soname (s->the_bfd); | |
563 | if (soname != NULL | |
564 | && strcmp (soname, global_needed->name) == 0) | |
565 | { | |
566 | global_found = true; | |
567 | return; | |
568 | } | |
569 | } | |
570 | ||
571 | if (s->search_dirs_flag | |
572 | && s->filename != NULL | |
573 | && strchr (global_needed->name, '/') == NULL) | |
574 | { | |
575 | const char *f; | |
576 | ||
577 | f = strrchr (s->filename, '/'); | |
578 | if (f != NULL | |
579 | && strcmp (f + 1, global_needed->name) == 0) | |
580 | { | |
581 | global_found = true; | |
582 | return; | |
583 | } | |
584 | } | |
585 | } | |
586 | ||
587 | /* See if an input file matches a DT_NEEDED entry by running stat on | |
588 | the file. */ | |
589 | ||
590 | static void | |
591 | gld${EMULATION_NAME}_stat_needed (s) | |
592 | lang_input_statement_type *s; | |
593 | { | |
594 | struct stat st; | |
595 | const char *suffix; | |
596 | const char *soname; | |
597 | const char *f; | |
598 | ||
599 | if (global_found) | |
600 | return; | |
601 | if (s->the_bfd == NULL) | |
602 | return; | |
603 | ||
604 | if (bfd_stat (s->the_bfd, &st) != 0) | |
605 | { | |
606 | einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd); | |
607 | return; | |
608 | } | |
609 | ||
610 | if (st.st_dev == global_stat.st_dev | |
611 | && st.st_ino == global_stat.st_ino) | |
612 | { | |
613 | global_found = true; | |
614 | return; | |
615 | } | |
616 | ||
617 | /* We issue a warning if it looks like we are including two | |
618 | different versions of the same shared library. For example, | |
619 | there may be a problem if -lc picks up libc.so.6 but some other | |
620 | shared library has a DT_NEEDED entry of libc.so.5. This is a | |
621 | hueristic test, and it will only work if the name looks like | |
622 | NAME.so.VERSION. FIXME: Depending on file names is error-prone. | |
623 | If we really want to issue warnings about mixing version numbers | |
624 | of shared libraries, we need to find a better way. */ | |
625 | ||
626 | if (strchr (global_needed->name, '/') != NULL) | |
627 | return; | |
628 | suffix = strstr (global_needed->name, ".so."); | |
629 | if (suffix == NULL) | |
630 | return; | |
631 | suffix += sizeof ".so." - 1; | |
632 | ||
633 | soname = bfd_elf_get_dt_soname (s->the_bfd); | |
634 | if (soname == NULL) | |
635 | soname = s->filename; | |
636 | ||
637 | f = strrchr (soname, '/'); | |
638 | if (f != NULL) | |
639 | ++f; | |
640 | else | |
641 | f = soname; | |
642 | ||
643 | if (strncmp (f, global_needed->name, suffix - global_needed->name) == 0) | |
644 | einfo ("%P: warning: %s, needed by %B, may conflict with %s\n", | |
645 | global_needed->name, global_needed->by, f); | |
646 | } | |
647 | ||
648 | /* On Linux, it's possible to have different versions of the same | |
649 | shared library linked against different versions of libc. The | |
650 | dynamic linker somehow tags which libc version to use in | |
651 | /etc/ld.so.cache, and, based on the libc that it sees in the | |
652 | executable, chooses which version of the shared library to use. | |
653 | ||
654 | We try to do a similar check here by checking whether this shared | |
655 | library needs any other shared libraries which may conflict with | |
656 | libraries we have already included in the link. If it does, we | |
657 | skip it, and try to find another shared library farther on down the | |
658 | link path. | |
659 | ||
660 | This is called via lang_for_each_input_file. | |
661 | GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object | |
662 | which we ar checking. This sets GLOBAL_VERCHECK_FAILED if we find | |
663 | a conflicting version. */ | |
664 | ||
665 | static void | |
666 | gld${EMULATION_NAME}_vercheck (s) | |
667 | lang_input_statement_type *s; | |
668 | { | |
669 | const char *soname, *f; | |
670 | struct bfd_link_needed_list *l; | |
671 | ||
672 | if (global_vercheck_failed) | |
673 | return; | |
674 | if (s->the_bfd == NULL | |
675 | || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0) | |
676 | return; | |
677 | ||
678 | soname = bfd_elf_get_dt_soname (s->the_bfd); | |
679 | if (soname == NULL) | |
680 | soname = bfd_get_filename (s->the_bfd); | |
681 | ||
682 | f = strrchr (soname, '/'); | |
683 | if (f != NULL) | |
684 | ++f; | |
685 | else | |
686 | f = soname; | |
687 | ||
688 | for (l = global_vercheck_needed; l != NULL; l = l->next) | |
689 | { | |
690 | const char *suffix; | |
691 | ||
692 | if (strcmp (f, l->name) == 0) | |
693 | { | |
694 | /* Probably can't happen, but it's an easy check. */ | |
695 | continue; | |
696 | } | |
697 | ||
698 | if (strchr (l->name, '/') != NULL) | |
699 | continue; | |
700 | ||
701 | suffix = strstr (l->name, ".so."); | |
702 | if (suffix == NULL) | |
703 | continue; | |
704 | ||
705 | suffix += sizeof ".so." - 1; | |
706 | ||
707 | if (strncmp (f, l->name, suffix - l->name) == 0) | |
708 | { | |
709 | /* Here we know that S is a dynamic object FOO.SO.VER1, and | |
710 | the object we are considering needs a dynamic object | |
711 | FOO.SO.VER2, and VER1 and VER2 are different. This | |
712 | appears to be a version mismatch, so we tell the caller | |
713 | to try a different version of this library. */ | |
714 | global_vercheck_failed = true; | |
715 | return; | |
716 | } | |
717 | } | |
718 | } | |
719 | ||
720 | /* This is called after the sections have been attached to output | |
721 | sections, but before any sizes or addresses have been set. */ | |
722 | ||
723 | static void | |
724 | gld${EMULATION_NAME}_before_allocation () | |
725 | { | |
726 | const char *rpath; | |
727 | asection *sinterp; | |
728 | ||
729 | /* If we are going to make any variable assignments, we need to let | |
730 | the ELF backend know about them in case the variables are | |
731 | referred to by dynamic objects. */ | |
732 | lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment); | |
733 | ||
734 | /* Let the ELF backend work out the sizes of any sections required | |
735 | by dynamic linking. */ | |
736 | rpath = command_line.rpath; | |
737 | if (rpath == NULL) | |
738 | rpath = (const char *) getenv ("LD_RUN_PATH"); | |
739 | if (! (bfd_elf${ELFSIZE}_size_dynamic_sections | |
740 | (output_bfd, command_line.soname, rpath, | |
741 | command_line.export_dynamic, command_line.filter_shlib, | |
742 | (const char * const *) command_line.auxiliary_filters, | |
743 | &link_info, &sinterp, lang_elf_version_info))) | |
744 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); | |
745 | ||
746 | /* Let the user override the dynamic linker we are using. */ | |
747 | if (command_line.interpreter != NULL | |
748 | && sinterp != NULL) | |
749 | { | |
750 | sinterp->contents = (bfd_byte *) command_line.interpreter; | |
751 | sinterp->_raw_size = strlen (command_line.interpreter) + 1; | |
752 | } | |
753 | ||
754 | /* Look for any sections named .gnu.warning. As a GNU extensions, | |
755 | we treat such sections as containing warning messages. We print | |
756 | out the warning message, and then zero out the section size so | |
757 | that it does not get copied into the output file. */ | |
758 | ||
759 | { | |
760 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
761 | { | |
762 | asection *s; | |
763 | bfd_size_type sz; | |
764 | char *msg; | |
765 | boolean ret; | |
766 | ||
767 | if (is->just_syms_flag) | |
768 | continue; | |
769 | ||
770 | s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning"); | |
771 | if (s == NULL) | |
772 | continue; | |
773 | ||
774 | sz = bfd_section_size (is->the_bfd, s); | |
775 | msg = xmalloc ((size_t) sz + 1); | |
776 | if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz)) | |
777 | einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n", | |
778 | is->the_bfd); | |
779 | msg[sz] = '\0'; | |
780 | ret = link_info.callbacks->warning (&link_info, msg, | |
781 | (const char *) NULL, | |
782 | is->the_bfd, (asection *) NULL, | |
783 | (bfd_vma) 0); | |
784 | ASSERT (ret); | |
785 | free (msg); | |
786 | ||
787 | /* Clobber the section size, so that we don't waste copying the | |
788 | warning into the output file. */ | |
789 | s->_raw_size = 0; | |
790 | } | |
791 | } | |
792 | } | |
793 | ||
794 | /* This is called by the before_allocation routine via | |
795 | lang_for_each_statement. It locates any assignment statements, and | |
796 | tells the ELF backend about them, in case they are assignments to | |
797 | symbols which are referred to by dynamic objects. */ | |
798 | ||
799 | static void | |
800 | gld${EMULATION_NAME}_find_statement_assignment (s) | |
801 | lang_statement_union_type *s; | |
802 | { | |
803 | if (s->header.type == lang_assignment_statement_enum) | |
804 | gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); | |
805 | } | |
806 | ||
807 | /* Look through an expression for an assignment statement. */ | |
808 | ||
809 | static void | |
810 | gld${EMULATION_NAME}_find_exp_assignment (exp) | |
811 | etree_type *exp; | |
812 | { | |
813 | struct bfd_link_hash_entry *h; | |
814 | ||
815 | switch (exp->type.node_class) | |
816 | { | |
817 | case etree_provide: | |
818 | h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst, | |
819 | false, false, false); | |
820 | if (h == NULL) | |
821 | break; | |
822 | ||
823 | /* We call record_link_assignment even if the symbol is defined. | |
824 | This is because if it is defined by a dynamic object, we | |
825 | actually want to use the value defined by the linker script, | |
826 | not the value from the dynamic object (because we are setting | |
827 | symbols like etext). If the symbol is defined by a regular | |
828 | object, then, as it happens, calling record_link_assignment | |
829 | will do no harm. */ | |
830 | ||
831 | /* Fall through. */ | |
832 | case etree_assign: | |
833 | if (strcmp (exp->assign.dst, ".") != 0) | |
834 | { | |
835 | if (! (bfd_elf${ELFSIZE}_record_link_assignment | |
836 | (output_bfd, &link_info, exp->assign.dst, | |
837 | exp->type.node_class == etree_provide ? true : false))) | |
838 | einfo ("%P%F: failed to record assignment to %s: %E\n", | |
839 | exp->assign.dst); | |
840 | } | |
841 | gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); | |
842 | break; | |
843 | ||
844 | case etree_binary: | |
845 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); | |
846 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); | |
847 | break; | |
848 | ||
849 | case etree_trinary: | |
850 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond); | |
851 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); | |
852 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); | |
853 | break; | |
854 | ||
855 | case etree_unary: | |
856 | gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); | |
857 | break; | |
858 | ||
859 | default: | |
860 | break; | |
861 | } | |
862 | } | |
863 | ||
864 | /* Place an orphan section. We use this to put random SHF_ALLOC | |
865 | sections in the right segment. */ | |
866 | ||
6a345e87 AM |
867 | struct orphan_save |
868 | { | |
869 | lang_output_section_statement_type *os; | |
5ba47421 | 870 | asection **section; |
6a345e87 AM |
871 | lang_statement_union_type **stmt; |
872 | }; | |
252b5132 RH |
873 | |
874 | /*ARGSUSED*/ | |
875 | static boolean | |
876 | gld${EMULATION_NAME}_place_orphan (file, s) | |
877 | lang_input_statement_type *file; | |
878 | asection *s; | |
879 | { | |
aea4bd9d AM |
880 | static struct orphan_save hold_text; |
881 | static struct orphan_save hold_rodata; | |
882 | static struct orphan_save hold_data; | |
883 | static struct orphan_save hold_bss; | |
884 | static struct orphan_save hold_rel; | |
885 | static struct orphan_save hold_interp; | |
6a345e87 | 886 | struct orphan_save *place; |
252b5132 RH |
887 | lang_statement_list_type *old; |
888 | lang_statement_list_type add; | |
889 | etree_type *address; | |
890 | const char *secname, *ps; | |
891 | const char *outsecname; | |
892 | lang_output_section_statement_type *os; | |
893 | ||
aea4bd9d AM |
894 | secname = bfd_get_section_name (s->owner, s); |
895 | ||
252b5132 | 896 | /* Look through the script to see where to place this section. */ |
aea4bd9d | 897 | os = lang_output_section_find (secname); |
252b5132 | 898 | |
aea4bd9d AM |
899 | if (os != NULL |
900 | && os->bfd_section != NULL | |
901 | && ((s->flags ^ os->bfd_section->flags) & (SEC_LOAD | SEC_ALLOC)) == 0) | |
252b5132 RH |
902 | { |
903 | /* We have already placed a section with this name. */ | |
aea4bd9d | 904 | wild_doit (&os->children, s, os, file); |
252b5132 RH |
905 | return true; |
906 | } | |
907 | ||
aea4bd9d AM |
908 | if (hold_text.os == NULL) |
909 | hold_text.os = lang_output_section_find (".text"); | |
252b5132 RH |
910 | |
911 | /* If this is a final link, then always put .gnu.warning.SYMBOL | |
912 | sections into the .text section to get them out of the way. */ | |
913 | if (! link_info.shared | |
914 | && ! link_info.relocateable | |
915 | && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0 | |
6a345e87 | 916 | && hold_text.os != NULL) |
252b5132 | 917 | { |
6a345e87 | 918 | wild_doit (&hold_text.os->children, s, hold_text.os, file); |
252b5132 RH |
919 | return true; |
920 | } | |
921 | ||
922 | /* Decide which segment the section should go in based on the | |
923 | section name and section flags. We put loadable .note sections | |
924 | right after the .interp section, so that the PT_NOTE segment is | |
925 | stored right after the program headers where the OS can read it | |
926 | in the first page. */ | |
aea4bd9d AM |
927 | #define HAVE_SECTION(hold, name) \ |
928 | (hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL) | |
929 | ||
252b5132 RH |
930 | if (s->flags & SEC_EXCLUDE) |
931 | return false; | |
5ba47421 AM |
932 | else if ((s->flags & SEC_ALLOC) == 0) |
933 | place = NULL; | |
252b5132 | 934 | else if ((s->flags & SEC_LOAD) != 0 |
6a345e87 | 935 | && strncmp (secname, ".note", 4) == 0 |
aea4bd9d | 936 | && HAVE_SECTION (hold_interp, ".interp")) |
6a345e87 | 937 | place = &hold_interp; |
252b5132 | 938 | else if ((s->flags & SEC_HAS_CONTENTS) == 0 |
aea4bd9d | 939 | && HAVE_SECTION (hold_bss, ".bss")) |
6a345e87 | 940 | place = &hold_bss; |
252b5132 | 941 | else if ((s->flags & SEC_READONLY) == 0 |
aea4bd9d | 942 | && HAVE_SECTION (hold_data, ".data")) |
6a345e87 | 943 | place = &hold_data; |
252b5132 | 944 | else if (strncmp (secname, ".rel", 4) == 0 |
aea4bd9d AM |
945 | && (hold_rel.os != NULL |
946 | || (hold_rel.os = output_rel_find ()) != NULL)) | |
6a345e87 | 947 | place = &hold_rel; |
252b5132 RH |
948 | else if ((s->flags & SEC_CODE) == 0 |
949 | && (s->flags & SEC_READONLY) != 0 | |
aea4bd9d | 950 | && HAVE_SECTION (hold_rodata, ".rodata")) |
6a345e87 | 951 | place = &hold_rodata; |
252b5132 | 952 | else if ((s->flags & SEC_READONLY) != 0 |
6a345e87 AM |
953 | && hold_text.os != NULL) |
954 | place = &hold_text; | |
955 | else | |
01cc8ff8 | 956 | place = NULL; |
252b5132 | 957 | |
aea4bd9d AM |
958 | #undef HAVE_SECTION |
959 | ||
252b5132 RH |
960 | /* Choose a unique name for the section. This will be needed if the |
961 | same section name appears in the input file with different | |
962 | loadable or allocateable characteristics. */ | |
963 | outsecname = secname; | |
964 | if (bfd_get_section_by_name (output_bfd, outsecname) != NULL) | |
965 | { | |
966 | unsigned int len; | |
967 | char *newname; | |
968 | unsigned int i; | |
969 | ||
970 | len = strlen (outsecname); | |
971 | newname = xmalloc (len + 5); | |
972 | strcpy (newname, outsecname); | |
973 | i = 0; | |
974 | do | |
975 | { | |
976 | sprintf (newname + len, "%d", i); | |
977 | ++i; | |
978 | } | |
979 | while (bfd_get_section_by_name (output_bfd, newname) != NULL); | |
980 | ||
981 | outsecname = newname; | |
982 | } | |
983 | ||
5ba47421 | 984 | if (place != NULL) |
252b5132 | 985 | { |
5ba47421 AM |
986 | /* Start building a list of statements for this section. */ |
987 | old = stat_ptr; | |
988 | stat_ptr = &add; | |
989 | lang_list_init (stat_ptr); | |
990 | ||
991 | /* If the name of the section is representable in C, then create | |
992 | symbols to mark the start and the end of the section. */ | |
993 | for (ps = outsecname; *ps != '\0'; ps++) | |
994 | if (! isalnum ((unsigned char) *ps) && *ps != '_') | |
995 | break; | |
996 | if (*ps == '\0' && config.build_constructors) | |
997 | { | |
998 | char *symname; | |
999 | etree_type *e_align; | |
1000 | ||
1001 | symname = (char *) xmalloc (ps - outsecname + sizeof "__start_"); | |
1002 | sprintf (symname, "__start_%s", outsecname); | |
1003 | e_align = exp_unop (ALIGN_K, | |
1004 | exp_intop ((bfd_vma) 1 << s->alignment_power)); | |
1005 | lang_add_assignment (exp_assop ('=', symname, e_align)); | |
1006 | } | |
252b5132 RH |
1007 | } |
1008 | ||
01cc8ff8 | 1009 | if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0) |
252b5132 | 1010 | address = exp_intop ((bfd_vma) 0); |
01cc8ff8 AM |
1011 | else |
1012 | address = NULL; | |
252b5132 | 1013 | |
aea4bd9d AM |
1014 | os = lang_enter_output_section_statement (outsecname, address, 0, |
1015 | (bfd_vma) 0, | |
1016 | (etree_type *) NULL, | |
1017 | (etree_type *) NULL, | |
1018 | (etree_type *) NULL); | |
252b5132 | 1019 | |
252b5132 RH |
1020 | wild_doit (&os->children, s, os, file); |
1021 | ||
20d04697 L |
1022 | lang_leave_output_section_statement |
1023 | ((bfd_vma) 0, "*default*", | |
1024 | (struct lang_output_section_phdr_list *) NULL, "*default*"); | |
1025 | ||
5ba47421 | 1026 | if (place != NULL) |
252b5132 | 1027 | { |
5ba47421 | 1028 | asection *snew, **pps; |
252b5132 | 1029 | |
5ba47421 | 1030 | stat_ptr = &add; |
252b5132 | 1031 | |
5ba47421 AM |
1032 | if (*ps == '\0' && config.build_constructors) |
1033 | { | |
1034 | char *symname; | |
1035 | ||
1036 | symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_"); | |
1037 | sprintf (symname, "__stop_%s", outsecname); | |
1038 | lang_add_assignment (exp_assop ('=', symname, | |
1039 | exp_nameop (NAME, "."))); | |
1040 | } | |
1041 | stat_ptr = old; | |
1042 | ||
1043 | snew = os->bfd_section; | |
1044 | if (place->os->bfd_section != NULL || place->section != NULL) | |
1045 | { | |
1046 | /* Shuffle the section to make the output file look neater. */ | |
1047 | if (place->section == NULL) | |
1048 | { | |
1049 | #if 0 | |
1050 | /* Finding the end of the list is a little tricky. We | |
1051 | make a wild stab at it by comparing section flags. */ | |
1052 | flagword first_flags = place->os->bfd_section->flags; | |
1053 | for (pps = &place->os->bfd_section->next; | |
1054 | *pps != NULL && (*pps)->flags == first_flags; | |
1055 | pps = &(*pps)->next) | |
1056 | ; | |
1057 | place->section = pps; | |
1058 | #else | |
1059 | /* Put orphans after the first section on the list. */ | |
1060 | place->section = &place->os->bfd_section->next; | |
1061 | #endif | |
1062 | } | |
1063 | ||
1064 | /* Unlink the section. */ | |
1065 | for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next) | |
1066 | ; | |
1067 | *pps = snew->next; | |
1068 | ||
1069 | /* Now tack it on to the "place->os" section list. */ | |
1070 | snew->next = *place->section; | |
1071 | *place->section = snew; | |
1072 | } | |
1073 | place->section = &snew->next; /* Save the end of this list. */ | |
1074 | ||
1075 | if (place->stmt == NULL) | |
01cc8ff8 AM |
1076 | { |
1077 | /* Put the new statement list right at the head. */ | |
1078 | *add.tail = place->os->header.next; | |
1079 | place->os->header.next = add.head; | |
1080 | } | |
1081 | else | |
1082 | { | |
1083 | /* Put it after the last orphan statement we added. */ | |
1084 | *add.tail = *place->stmt; | |
1085 | *place->stmt = add.head; | |
1086 | } | |
5ba47421 | 1087 | place->stmt = add.tail; /* Save the end of this list. */ |
6a345e87 | 1088 | } |
252b5132 RH |
1089 | |
1090 | return true; | |
1091 | } | |
1092 | ||
aea4bd9d AM |
1093 | /* A variant of lang_output_section_find. */ |
1094 | static lang_output_section_statement_type * | |
1095 | output_rel_find () | |
252b5132 | 1096 | { |
aea4bd9d AM |
1097 | lang_statement_union_type *u; |
1098 | lang_output_section_statement_type *lookup; | |
252b5132 | 1099 | |
aea4bd9d AM |
1100 | for (u = lang_output_section_statement.head; |
1101 | u != (lang_statement_union_type *) NULL; | |
1102 | u = lookup->next) | |
1103 | { | |
1104 | lookup = &u->output_section_statement; | |
1105 | if (strncmp (".rel", lookup->name, 4) == 0 | |
1106 | && lookup->bfd_section != NULL | |
1107 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) | |
1108 | { | |
1109 | return lookup; | |
1110 | } | |
1111 | } | |
1112 | return (lang_output_section_statement_type *) NULL; | |
252b5132 RH |
1113 | } |
1114 | ||
1115 | static char * | |
1116 | gld${EMULATION_NAME}_get_script(isfile) | |
1117 | int *isfile; | |
1118 | EOF | |
1119 | ||
1120 | if test -n "$COMPILE_IN" | |
1121 | then | |
1122 | # Scripts compiled in. | |
1123 | ||
1124 | # sed commands to quote an ld script as a C string. | |
597e2591 | 1125 | sc="-f stringify.sed" |
252b5132 RH |
1126 | |
1127 | cat >>e${EMULATION_NAME}.c <<EOF | |
60bcf0fa | 1128 | { |
252b5132 RH |
1129 | *isfile = 0; |
1130 | ||
1131 | if (link_info.relocateable == true && config.build_constructors == true) | |
597e2591 | 1132 | return |
252b5132 | 1133 | EOF |
597e2591 ILT |
1134 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c |
1135 | echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c | |
1136 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c | |
1137 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c | |
1138 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c | |
1139 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c | |
1140 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c | |
252b5132 RH |
1141 | |
1142 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then | |
597e2591 ILT |
1143 | echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c |
1144 | sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c | |
252b5132 RH |
1145 | fi |
1146 | ||
597e2591 ILT |
1147 | echo ' ; else return' >> e${EMULATION_NAME}.c |
1148 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c | |
1149 | echo '; }' >> e${EMULATION_NAME}.c | |
252b5132 RH |
1150 | |
1151 | else | |
1152 | # Scripts read from the filesystem. | |
1153 | ||
1154 | cat >>e${EMULATION_NAME}.c <<EOF | |
60bcf0fa | 1155 | { |
252b5132 RH |
1156 | *isfile = 1; |
1157 | ||
1158 | if (link_info.relocateable == true && config.build_constructors == true) | |
1159 | return "ldscripts/${EMULATION_NAME}.xu"; | |
1160 | else if (link_info.relocateable == true) | |
1161 | return "ldscripts/${EMULATION_NAME}.xr"; | |
1162 | else if (!config.text_read_only) | |
1163 | return "ldscripts/${EMULATION_NAME}.xbn"; | |
1164 | else if (!config.magic_demand_paged) | |
1165 | return "ldscripts/${EMULATION_NAME}.xn"; | |
1166 | else if (link_info.shared) | |
1167 | return "ldscripts/${EMULATION_NAME}.xs"; | |
1168 | else | |
1169 | return "ldscripts/${EMULATION_NAME}.x"; | |
1170 | } | |
1171 | EOF | |
1172 | ||
1173 | fi | |
1174 | ||
3b108066 NC |
1175 | if test -n "$PARSE_AND_LIST_ARGS" ; then |
1176 | cat >>e${EMULATION_NAME}.c <<EOF | |
1177 | static int gld_${EMULATION_NAME}_parse_args PARAMS ((int, char **)); | |
1178 | static void gld_${EMULATION_NAME}_list_options PARAMS ((FILE * file)); | |
1179 | ||
1180 | $PARSE_AND_LIST_ARGS | |
1181 | EOF | |
1182 | else | |
1183 | ||
1184 | cat >>e${EMULATION_NAME}.c <<EOF | |
1185 | #define gld_${EMULATION_NAME}_parse_args NULL | |
1186 | #define gld_${EMULATION_NAME}_list_options NULL | |
1187 | EOF | |
1188 | ||
1189 | fi | |
1190 | ||
252b5132 RH |
1191 | cat >>e${EMULATION_NAME}.c <<EOF |
1192 | ||
60bcf0fa | 1193 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = |
252b5132 RH |
1194 | { |
1195 | gld${EMULATION_NAME}_before_parse, | |
1196 | syslib_default, | |
1197 | hll_default, | |
1198 | after_parse_default, | |
1199 | gld${EMULATION_NAME}_after_open, | |
1200 | after_allocation_default, | |
1201 | set_output_arch_default, | |
1202 | ldemul_default_target, | |
1203 | gld${EMULATION_NAME}_before_allocation, | |
1204 | gld${EMULATION_NAME}_get_script, | |
1205 | "${EMULATION_NAME}", | |
1206 | "${OUTPUT_FORMAT}", | |
3b108066 NC |
1207 | NULL, /* finish */ |
1208 | NULL, /* create output section statements */ | |
252b5132 | 1209 | gld${EMULATION_NAME}_open_dynamic_archive, |
5d341b0e | 1210 | gld${EMULATION_NAME}_place_orphan, |
87f2a346 | 1211 | NULL, /* set_symbols */ |
3b108066 | 1212 | gld_${EMULATION_NAME}_parse_args, |
87f2a346 | 1213 | NULL, /* unrecognized_file */ |
3b108066 | 1214 | gld_${EMULATION_NAME}_list_options, |
40d109bf AM |
1215 | NULL, /* recognized_file */ |
1216 | NULL /* find_potential_libraries */ | |
252b5132 RH |
1217 | }; |
1218 | EOF |