* ld.texinfo: Document --fatal-warnings.
[deliverable/binutils-gdb.git] / ld / emultempl / elf32.em
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 ${EMULATION_NAME}
10 Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
11 Free Software Foundation, Inc.
12 Written by Steve Chamberlain <sac@cygnus.com>
13 ELF support by Ian Lance Taylor <ian@cygnus.com>
14
15 This file is part of GLD, the Gnu Linker.
16
17 This program is free software; you can redistribute it and/or modify
18 it under the terms of the GNU General Public License as published by
19 the Free Software Foundation; either version 2 of the License, or
20 (at your option) any later version.
21
22 This program is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License for more details.
26
27 You should have received a copy of the GNU General Public License
28 along with this program; if not, write to the Free Software
29 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
30
31 #define TARGET_IS_${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 "ldmisc.h"
43 #include "ldexp.h"
44 #include "ldlang.h"
45 #include "ldfile.h"
46 #include "ldemul.h"
47 #include "ldgram.h"
48 #include "elf/common.h"
49
50 static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
51 static void gld${EMULATION_NAME}_vercheck
52 PARAMS ((lang_input_statement_type *));
53 static void gld${EMULATION_NAME}_stat_needed
54 PARAMS ((lang_input_statement_type *));
55 static boolean gld${EMULATION_NAME}_try_needed PARAMS ((const char *, int));
56 static boolean gld${EMULATION_NAME}_search_needed
57 PARAMS ((const char *, const char *, int));
58 static void gld${EMULATION_NAME}_check_needed
59 PARAMS ((lang_input_statement_type *));
60 static void gld${EMULATION_NAME}_after_open PARAMS ((void));
61 static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *));
62 static void gld${EMULATION_NAME}_find_statement_assignment
63 PARAMS ((lang_statement_union_type *));
64 static void gld${EMULATION_NAME}_before_allocation PARAMS ((void));
65 static boolean gld${EMULATION_NAME}_open_dynamic_archive
66 PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *));
67 static lang_output_section_statement_type *output_rel_find PARAMS ((void));
68 static boolean gld${EMULATION_NAME}_place_orphan
69 PARAMS ((lang_input_statement_type *, asection *));
70 static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile));
71
72 EOF
73
74 # Import any needed special functions and/or overrides.
75 #
76 if test -n "$EXTRA_EM_FILE" ; then
77 . ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
78 fi
79
80 # Functions in this file can be overridden 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${EMULATION_NAME}.c <<EOF
88
89 static void
90 gld${EMULATION_NAME}_before_parse ()
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
97 EOF
98 fi
99
100 cat >>e${EMULATION_NAME}.c <<EOF
101
102 /* These variables are required to pass information back and forth
103 between after_open and check_needed and stat_needed and vercheck. */
104
105 static struct bfd_link_needed_list *global_needed;
106 static struct stat global_stat;
107 static boolean global_found;
108 static struct bfd_link_needed_list *global_vercheck_needed;
109 static boolean global_vercheck_failed;
110
111
112 /* On Linux, it's possible to have different versions of the same
113 shared library linked against different versions of libc. The
114 dynamic linker somehow tags which libc version to use in
115 /etc/ld.so.cache, and, based on the libc that it sees in the
116 executable, chooses which version of the shared library to use.
117
118 We try to do a similar check here by checking whether this shared
119 library needs any other shared libraries which may conflict with
120 libraries we have already included in the link. If it does, we
121 skip it, and try to find another shared library farther on down the
122 link path.
123
124 This is called via lang_for_each_input_file.
125 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
126 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
127 a conflicting version. */
128
129 static void
130 gld${EMULATION_NAME}_vercheck (s)
131 lang_input_statement_type *s;
132 {
133 const char *soname, *f;
134 struct bfd_link_needed_list *l;
135
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;
141
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;
160 }
161
162 if (strchr (l->name, '/') != NULL)
163 continue;
164
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 }
181 }
182 }
183
184
185 /* See if an input file matches a DT_NEEDED entry by running stat on
186 the file. */
187
188 static void
189 gld${EMULATION_NAME}_stat_needed (s)
190 lang_input_statement_type *s;
191 {
192 struct stat st;
193 const char *suffix;
194 const char *soname;
195 const char *f;
196
197 if (global_found)
198 return;
199 if (s->the_bfd == NULL)
200 return;
201
202 if (bfd_stat (s->the_bfd, &st) != 0)
203 {
204 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
205 return;
206 }
207
208 if (st.st_dev == global_stat.st_dev
209 && st.st_ino == global_stat.st_ino)
210 {
211 global_found = true;
212 return;
213 }
214
215 /* We issue a warning if it looks like we are including two
216 different versions of the same shared library. For example,
217 there may be a problem if -lc picks up libc.so.6 but some other
218 shared library has a DT_NEEDED entry of libc.so.5. This is a
219 heuristic test, and it will only work if the name looks like
220 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
221 If we really want to issue warnings about mixing version numbers
222 of shared libraries, we need to find a better way. */
223
224 if (strchr (global_needed->name, '/') != NULL)
225 return;
226 suffix = strstr (global_needed->name, ".so.");
227 if (suffix == NULL)
228 return;
229 suffix += sizeof ".so." - 1;
230
231 soname = bfd_elf_get_dt_soname (s->the_bfd);
232 if (soname == NULL)
233 soname = s->filename;
234
235 f = strrchr (soname, '/');
236 if (f != NULL)
237 ++f;
238 else
239 f = soname;
240
241 if (strncmp (f, global_needed->name, suffix - global_needed->name) == 0)
242 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
243 global_needed->name, global_needed->by, f);
244 }
245
246
247 /* This function is called for each possible name for a dynamic object
248 named by a DT_NEEDED entry. The FORCE parameter indicates whether
249 to skip the check for a conflicting version. */
250
251 static boolean
252 gld${EMULATION_NAME}_try_needed (name, force)
253 const char *name;
254 int force;
255 {
256 bfd *abfd;
257 const char *soname;
258
259 abfd = bfd_openr (name, bfd_get_target (output_bfd));
260 if (abfd == NULL)
261 return false;
262 if (! bfd_check_format (abfd, bfd_object))
263 {
264 (void) bfd_close (abfd);
265 return false;
266 }
267 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
268 {
269 (void) bfd_close (abfd);
270 return false;
271 }
272
273 /* Check whether this object would include any conflicting library
274 versions. If FORCE is set, then we skip this check; we use this
275 the second time around, if we couldn't find any compatible
276 instance of the shared library. */
277
278 if (! force)
279 {
280 struct bfd_link_needed_list *needed;
281
282 if (! bfd_elf_get_bfd_needed_list (abfd, &needed))
283 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
284
285 if (needed != NULL)
286 {
287 global_vercheck_needed = needed;
288 global_vercheck_failed = false;
289 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
290 if (global_vercheck_failed)
291 {
292 (void) bfd_close (abfd);
293 /* Return false to force the caller to move on to try
294 another file on the search path. */
295 return false;
296 }
297
298 /* But wait! It gets much worse. On Linux, if a shared
299 library does not use libc at all, we are supposed to skip
300 it the first time around in case we encounter a shared
301 library later on with the same name which does use the
302 version of libc that we want. This is much too horrible
303 to use on any system other than Linux. */
304
305 EOF
306 case ${target} in
307 *-*-linux-gnu*)
308 cat >>e${EMULATION_NAME}.c <<EOF
309 {
310 struct bfd_link_needed_list *l;
311
312 for (l = needed; l != NULL; l = l->next)
313 if (strncmp (l->name, "libc.so", 7) == 0)
314 break;
315 if (l == NULL)
316 {
317 (void) bfd_close (abfd);
318 return false;
319 }
320 }
321
322 EOF
323 ;;
324 esac
325 cat >>e${EMULATION_NAME}.c <<EOF
326 }
327 }
328
329 /* We've found a dynamic object matching the DT_NEEDED entry. */
330
331 /* We have already checked that there is no other input file of the
332 same name. We must now check again that we are not including the
333 same file twice. We need to do this because on many systems
334 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
335 reference libc.so.1. If we have already included libc.so, we
336 don't want to include libc.so.1 if they are the same file, and we
337 can only check that using stat. */
338
339 if (bfd_stat (abfd, &global_stat) != 0)
340 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
341
342 /* First strip off everything before the last '/'. */
343 soname = strrchr (abfd->filename, '/');
344 if (soname)
345 soname++;
346 else
347 soname = abfd->filename;
348
349 if (trace_file_tries)
350 info_msg (_("found %s at %s\n"), soname, name);
351
352 global_found = false;
353 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
354 if (global_found)
355 {
356 /* Return true to indicate that we found the file, even though
357 we aren't going to do anything with it. */
358 return true;
359 }
360
361 /* Tell the ELF backend that we don't want the output file to have a
362 DT_NEEDED entry for this file. */
363 bfd_elf_set_dt_needed_name (abfd, "");
364
365 /* Tell the ELF backend that the output file needs a DT_NEEDED
366 entry for this file if it is used to resolve the reference in
367 a regular object. */
368 bfd_elf_set_dt_needed_soname (abfd, soname);
369
370 /* Add this file into the symbol table. */
371 if (! bfd_link_add_symbols (abfd, &link_info))
372 einfo ("%F%B: could not read symbols: %E\n", abfd);
373
374 return true;
375 }
376
377
378 /* Search for a needed file in a path. */
379
380 static boolean
381 gld${EMULATION_NAME}_search_needed (path, name, force)
382 const char *path;
383 const char *name;
384 int force;
385 {
386 const char *s;
387 size_t len;
388
389 if (name[0] == '/')
390 return gld${EMULATION_NAME}_try_needed (name, force);
391
392 if (path == NULL || *path == '\0')
393 return false;
394 len = strlen (name);
395 while (1)
396 {
397 char *filename, *sset;
398
399 s = strchr (path, ':');
400 if (s == NULL)
401 s = path + strlen (path);
402
403 filename = (char *) xmalloc (s - path + len + 2);
404 if (s == path)
405 sset = filename;
406 else
407 {
408 memcpy (filename, path, s - path);
409 filename[s - path] = '/';
410 sset = filename + (s - path) + 1;
411 }
412 strcpy (sset, name);
413
414 if (gld${EMULATION_NAME}_try_needed (filename, force))
415 return true;
416
417 free (filename);
418
419 if (*s == '\0')
420 break;
421 path = s + 1;
422 }
423
424 return false;
425 }
426
427 EOF
428 if [ "x${host}" = "x${target}" ] ; then
429 case " ${EMULATION_LIBPATH} " in
430 *" ${EMULATION_NAME} "*)
431 case ${target} in
432 *-*-linux-gnu*)
433 cat >>e${EMULATION_NAME}.c <<EOF
434
435 /* For a native linker, check the file /etc/ld.so.conf for directories
436 in which we may find shared libraries. /etc/ld.so.conf is really
437 only meaningful on Linux. */
438
439 static boolean gld${EMULATION_NAME}_check_ld_so_conf
440 PARAMS ((const char *, int));
441
442 static boolean
443 gld${EMULATION_NAME}_check_ld_so_conf (name, force)
444 const char *name;
445 int force;
446 {
447 static boolean initialized;
448 static char *ld_so_conf;
449
450 if (! initialized)
451 {
452 FILE *f;
453
454 f = fopen ("/etc/ld.so.conf", FOPEN_RT);
455 if (f != NULL)
456 {
457 char *b;
458 size_t len, alloc;
459 int c;
460
461 len = 0;
462 alloc = 100;
463 b = (char *) xmalloc (alloc);
464
465 while ((c = getc (f)) != EOF)
466 {
467 if (len + 1 >= alloc)
468 {
469 alloc *= 2;
470 b = (char *) xrealloc (b, alloc);
471 }
472 if (c != ':'
473 && c != ' '
474 && c != '\t'
475 && c != '\n'
476 && c != ',')
477 {
478 b[len] = c;
479 ++len;
480 }
481 else
482 {
483 if (len > 0 && b[len - 1] != ':')
484 {
485 b[len] = ':';
486 ++len;
487 }
488 }
489 }
490
491 if (len > 0 && b[len - 1] == ':')
492 --len;
493
494 if (len > 0)
495 b[len] = '\0';
496 else
497 {
498 free (b);
499 b = NULL;
500 }
501
502 fclose (f);
503
504 ld_so_conf = b;
505 }
506
507 initialized = true;
508 }
509
510 if (ld_so_conf == NULL)
511 return false;
512
513 return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force);
514 }
515
516 EOF
517 # Linux
518 ;;
519 esac
520 esac
521 fi
522 cat >>e${EMULATION_NAME}.c <<EOF
523
524 /* See if an input file matches a DT_NEEDED entry by name. */
525
526 static void
527 gld${EMULATION_NAME}_check_needed (s)
528 lang_input_statement_type *s;
529 {
530 if (global_found)
531 return;
532
533 if (s->filename != NULL)
534 {
535 const char *f;
536
537 if (strcmp (s->filename, global_needed->name) == 0)
538 {
539 global_found = true;
540 return;
541 }
542
543 if (s->search_dirs_flag)
544 {
545 f = strrchr (s->filename, '/');
546 if (f != NULL
547 && strcmp (f + 1, global_needed->name) == 0)
548 {
549 global_found = true;
550 return;
551 }
552 }
553 }
554
555 if (s->the_bfd != NULL)
556 {
557 const char *soname;
558
559 soname = bfd_elf_get_dt_soname (s->the_bfd);
560 if (soname != NULL
561 && strcmp (soname, global_needed->name) == 0)
562 {
563 global_found = true;
564 return;
565 }
566 }
567 }
568
569 EOF
570
571 if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
572 cat >>e${EMULATION_NAME}.c <<EOF
573
574 /* This is called after all the input files have been opened. */
575
576 static void
577 gld${EMULATION_NAME}_after_open ()
578 {
579 struct bfd_link_needed_list *needed, *l;
580
581 /* We only need to worry about this when doing a final link. */
582 if (link_info.relocateable || link_info.shared)
583 return;
584
585 /* Get the list of files which appear in DT_NEEDED entries in
586 dynamic objects included in the link (often there will be none).
587 For each such file, we want to track down the corresponding
588 library, and include the symbol table in the link. This is what
589 the runtime dynamic linker will do. Tracking the files down here
590 permits one dynamic object to include another without requiring
591 special action by the person doing the link. Note that the
592 needed list can actually grow while we are stepping through this
593 loop. */
594 needed = bfd_elf_get_needed_list (output_bfd, &link_info);
595 for (l = needed; l != NULL; l = l->next)
596 {
597 struct bfd_link_needed_list *ll;
598 int force;
599
600 /* If we've already seen this file, skip it. */
601 for (ll = needed; ll != l; ll = ll->next)
602 if (strcmp (ll->name, l->name) == 0)
603 break;
604 if (ll != l)
605 continue;
606
607 /* See if this file was included in the link explicitly. */
608 global_needed = l;
609 global_found = false;
610 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
611 if (global_found)
612 continue;
613
614 if (trace_file_tries)
615 info_msg (_("%s needed by %B\n"), l->name, l->by);
616
617 /* We need to find this file and include the symbol table. We
618 want to search for the file in the same way that the dynamic
619 linker will search. That means that we want to use
620 rpath_link, rpath, then the environment variable
621 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
622 entries (native only), then the linker script LIB_SEARCH_DIRS.
623 We do not search using the -L arguments.
624
625 We search twice. The first time, we skip objects which may
626 introduce version mismatches. The second time, we force
627 their use. See gld${EMULATION_NAME}_vercheck comment. */
628 for (force = 0; force < 2; force++)
629 {
630 size_t len;
631 search_dirs_type *search;
632 EOF
633 if [ "x${host}" = "x${target}" ] ; then
634 case " ${EMULATION_LIBPATH} " in
635 *" ${EMULATION_NAME} "*)
636 cat >>e${EMULATION_NAME}.c <<EOF
637 const char *lib_path;
638 struct bfd_link_needed_list *rp;
639 int found;
640 EOF
641 ;;
642 esac
643 fi
644 cat >>e${EMULATION_NAME}.c <<EOF
645
646 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
647 l->name, force))
648 break;
649 EOF
650 if [ "x${host}" = "x${target}" ] ; then
651 case " ${EMULATION_LIBPATH} " in
652 *" ${EMULATION_NAME} "*)
653 cat >>e${EMULATION_NAME}.c <<EOF
654 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
655 l->name, force))
656 break;
657 if (command_line.rpath_link == NULL
658 && command_line.rpath == NULL)
659 {
660 lib_path = (const char *) getenv ("LD_RUN_PATH");
661 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name,
662 force))
663 break;
664 }
665 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
666 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force))
667 break;
668
669 found = 0;
670 rp = bfd_elf_get_runpath_list (output_bfd, &link_info);
671 for (; !found && rp != NULL; rp = rp->next)
672 {
673 found = (rp->by == l->by
674 && gld${EMULATION_NAME}_search_needed (rp->name,
675 l->name,
676 force));
677 }
678 if (found)
679 break;
680
681 EOF
682 ;;
683 esac
684 fi
685 cat >>e${EMULATION_NAME}.c <<EOF
686 len = strlen (l->name);
687 for (search = search_head; search != NULL; search = search->next)
688 {
689 char *filename;
690
691 if (search->cmdline)
692 continue;
693 filename = (char *) xmalloc (strlen (search->name) + len + 2);
694 sprintf (filename, "%s/%s", search->name, l->name);
695 if (gld${EMULATION_NAME}_try_needed (filename, force))
696 break;
697 free (filename);
698 }
699 if (search != NULL)
700 break;
701 EOF
702 if [ "x${host}" = "x${target}" ] ; then
703 case " ${EMULATION_LIBPATH} " in
704 *" ${EMULATION_NAME} "*)
705 case ${target} in
706 *-*-linux-gnu*)
707 cat >>e${EMULATION_NAME}.c <<EOF
708 if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
709 break;
710 EOF
711 # Linux
712 ;;
713 esac
714 ;;
715 esac
716 fi
717 cat >>e${EMULATION_NAME}.c <<EOF
718 }
719
720 if (force < 2)
721 continue;
722
723 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
724 l->name, l->by);
725 }
726 }
727
728 EOF
729 fi
730
731 cat >>e${EMULATION_NAME}.c <<EOF
732
733 /* Look through an expression for an assignment statement. */
734
735 static void
736 gld${EMULATION_NAME}_find_exp_assignment (exp)
737 etree_type *exp;
738 {
739 struct bfd_link_hash_entry *h;
740
741 switch (exp->type.node_class)
742 {
743 case etree_provide:
744 h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
745 false, false, false);
746 if (h == NULL)
747 break;
748
749 /* We call record_link_assignment even if the symbol is defined.
750 This is because if it is defined by a dynamic object, we
751 actually want to use the value defined by the linker script,
752 not the value from the dynamic object (because we are setting
753 symbols like etext). If the symbol is defined by a regular
754 object, then, as it happens, calling record_link_assignment
755 will do no harm. */
756
757 /* Fall through. */
758 case etree_assign:
759 if (strcmp (exp->assign.dst, ".") != 0)
760 {
761 if (! (bfd_elf${ELFSIZE}_record_link_assignment
762 (output_bfd, &link_info, exp->assign.dst,
763 exp->type.node_class == etree_provide ? true : false)))
764 einfo ("%P%F: failed to record assignment to %s: %E\n",
765 exp->assign.dst);
766 }
767 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
768 break;
769
770 case etree_binary:
771 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
772 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
773 break;
774
775 case etree_trinary:
776 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
777 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
778 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
779 break;
780
781 case etree_unary:
782 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
783 break;
784
785 default:
786 break;
787 }
788 }
789
790
791 /* This is called by the before_allocation routine via
792 lang_for_each_statement. It locates any assignment statements, and
793 tells the ELF backend about them, in case they are assignments to
794 symbols which are referred to by dynamic objects. */
795
796 static void
797 gld${EMULATION_NAME}_find_statement_assignment (s)
798 lang_statement_union_type *s;
799 {
800 if (s->header.type == lang_assignment_statement_enum)
801 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
802 }
803
804 EOF
805
806 if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
807 cat >>e${EMULATION_NAME}.c <<EOF
808
809 /* This is called after the sections have been attached to output
810 sections, but before any sizes or addresses have been set. */
811
812 static void
813 gld${EMULATION_NAME}_before_allocation ()
814 {
815 const char *rpath;
816 asection *sinterp;
817
818 /* If we are going to make any variable assignments, we need to let
819 the ELF backend know about them in case the variables are
820 referred to by dynamic objects. */
821 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
822
823 /* Let the ELF backend work out the sizes of any sections required
824 by dynamic linking. */
825 rpath = command_line.rpath;
826 if (rpath == NULL)
827 rpath = (const char *) getenv ("LD_RUN_PATH");
828 if (! (bfd_elf${ELFSIZE}_size_dynamic_sections
829 (output_bfd, command_line.soname, rpath,
830 command_line.export_dynamic, command_line.filter_shlib,
831 (const char * const *) command_line.auxiliary_filters,
832 &link_info, &sinterp, lang_elf_version_info)))
833 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
834
835 /* Let the user override the dynamic linker we are using. */
836 if (command_line.interpreter != NULL
837 && sinterp != NULL)
838 {
839 sinterp->contents = (bfd_byte *) command_line.interpreter;
840 sinterp->_raw_size = strlen (command_line.interpreter) + 1;
841 }
842
843 /* Look for any sections named .gnu.warning. As a GNU extensions,
844 we treat such sections as containing warning messages. We print
845 out the warning message, and then zero out the section size so
846 that it does not get copied into the output file. */
847
848 {
849 LANG_FOR_EACH_INPUT_STATEMENT (is)
850 {
851 asection *s;
852 bfd_size_type sz;
853 char *msg;
854 boolean ret;
855
856 if (is->just_syms_flag)
857 continue;
858
859 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
860 if (s == NULL)
861 continue;
862
863 sz = bfd_section_size (is->the_bfd, s);
864 msg = xmalloc ((size_t) sz + 1);
865 if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz))
866 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
867 is->the_bfd);
868 msg[sz] = '\0';
869 ret = link_info.callbacks->warning (&link_info, msg,
870 (const char *) NULL,
871 is->the_bfd, (asection *) NULL,
872 (bfd_vma) 0);
873 ASSERT (ret);
874 free (msg);
875
876 /* Clobber the section size, so that we don't waste copying the
877 warning into the output file. */
878 s->_raw_size = 0;
879 }
880 }
881 }
882
883 EOF
884 fi
885
886 if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
887 cat >>e${EMULATION_NAME}.c <<EOF
888
889 /* Try to open a dynamic archive. This is where we know that ELF
890 dynamic libraries have an extension of .so (or .sl on oddball systems
891 like hpux). */
892
893 static boolean
894 gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
895 const char *arch;
896 search_dirs_type *search;
897 lang_input_statement_type *entry;
898 {
899 const char *filename;
900 char *string;
901
902 if (! entry->is_archive)
903 return false;
904
905 filename = entry->filename;
906
907 /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
908 is defined, but it does not seem worth the headache to optimize
909 away those two bytes of space. */
910 string = (char *) xmalloc (strlen (search->name)
911 + strlen (filename)
912 + strlen (arch)
913 #ifdef EXTRA_SHLIB_EXTENSION
914 + strlen (EXTRA_SHLIB_EXTENSION)
915 #endif
916 + sizeof "/lib.so");
917
918 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
919
920 #ifdef EXTRA_SHLIB_EXTENSION
921 /* Try the .so extension first. If that fails build a new filename
922 using EXTRA_SHLIB_EXTENSION. */
923 if (! ldfile_try_open_bfd (string, entry))
924 sprintf (string, "%s/lib%s%s%s", search->name,
925 filename, arch, EXTRA_SHLIB_EXTENSION);
926 #endif
927
928 if (! ldfile_try_open_bfd (string, entry))
929 {
930 free (string);
931 return false;
932 }
933
934 entry->filename = string;
935
936 /* We have found a dynamic object to include in the link. The ELF
937 backend linker will create a DT_NEEDED entry in the .dynamic
938 section naming this file. If this file includes a DT_SONAME
939 entry, it will be used. Otherwise, the ELF linker will just use
940 the name of the file. For an archive found by searching, like
941 this one, the DT_NEEDED entry should consist of just the name of
942 the file, without the path information used to find it. Note
943 that we only need to do this if we have a dynamic object; an
944 archive will never be referenced by a DT_NEEDED entry.
945
946 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
947 very pretty. I haven't been able to think of anything that is
948 pretty, though. */
949 if (bfd_check_format (entry->the_bfd, bfd_object)
950 && (entry->the_bfd->flags & DYNAMIC) != 0)
951 {
952 char *needed_name;
953
954 ASSERT (entry->is_archive && entry->search_dirs_flag);
955
956 /* Rather than duplicating the logic above. Just use the
957 filename we recorded earlier.
958
959 First strip off everything before the last '/'. */
960 filename = strrchr (entry->filename, '/');
961 filename++;
962
963 needed_name = (char *) xmalloc (strlen (filename) + 1);
964 strcpy (needed_name, filename);
965 bfd_elf_set_dt_needed_name (entry->the_bfd, needed_name);
966 }
967
968 return true;
969 }
970
971 EOF
972 fi
973 cat >>e${EMULATION_NAME}.c <<EOF
974
975 /* A variant of lang_output_section_find. Used by place_orphan. */
976
977 static lang_output_section_statement_type *
978 output_rel_find ()
979 {
980 lang_statement_union_type *u;
981 lang_output_section_statement_type *lookup;
982
983 for (u = lang_output_section_statement.head;
984 u != (lang_statement_union_type *) NULL;
985 u = lookup->next)
986 {
987 lookup = &u->output_section_statement;
988 if (strncmp (".rel", lookup->name, 4) == 0
989 && lookup->bfd_section != NULL
990 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
991 {
992 return lookup;
993 }
994 }
995 return (lang_output_section_statement_type *) NULL;
996 }
997
998 EOF
999
1000 if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
1001 cat >>e${EMULATION_NAME}.c <<EOF
1002
1003 /* Place an orphan section. We use this to put random SHF_ALLOC
1004 sections in the right segment. */
1005
1006 struct orphan_save {
1007 lang_output_section_statement_type *os;
1008 asection **section;
1009 lang_statement_union_type **stmt;
1010 };
1011
1012 static boolean
1013 gld${EMULATION_NAME}_place_orphan (file, s)
1014 lang_input_statement_type *file;
1015 asection *s;
1016 {
1017 static struct orphan_save hold_text;
1018 static struct orphan_save hold_rodata;
1019 static struct orphan_save hold_data;
1020 static struct orphan_save hold_bss;
1021 static struct orphan_save hold_rel;
1022 static struct orphan_save hold_interp;
1023 static struct orphan_save hold_sdata;
1024 static int count = 1;
1025 struct orphan_save *place;
1026 lang_statement_list_type *old;
1027 lang_statement_list_type add;
1028 etree_type *address;
1029 const char *secname;
1030 const char *outsecname;
1031 const char *ps = NULL;
1032 lang_output_section_statement_type *os;
1033
1034 secname = bfd_get_section_name (s->owner, s);
1035
1036 if (! config.unique_orphan_sections && ! unique_section_p (secname))
1037 {
1038 /* Look through the script to see where to place this section. */
1039 os = lang_output_section_find (secname);
1040
1041 if (os != NULL
1042 && os->bfd_section != NULL
1043 && ((s->flags ^ os->bfd_section->flags)
1044 & (SEC_LOAD | SEC_ALLOC)) == 0)
1045 {
1046 /* We have already placed a section with this name. */
1047 wild_doit (&os->children, s, os, file);
1048 return true;
1049 }
1050 }
1051
1052 if (hold_text.os == NULL)
1053 hold_text.os = lang_output_section_find (".text");
1054
1055 /* If this is a final link, then always put .gnu.warning.SYMBOL
1056 sections into the .text section to get them out of the way. */
1057 if (! link_info.shared
1058 && ! link_info.relocateable
1059 && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
1060 && hold_text.os != NULL)
1061 {
1062 wild_doit (&hold_text.os->children, s, hold_text.os, file);
1063 return true;
1064 }
1065
1066 /* Decide which segment the section should go in based on the
1067 section name and section flags. We put loadable .note sections
1068 right after the .interp section, so that the PT_NOTE segment is
1069 stored right after the program headers where the OS can read it
1070 in the first page. */
1071 #define HAVE_SECTION(hold, name) \
1072 (hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
1073
1074 if (s->flags & SEC_EXCLUDE)
1075 return false;
1076
1077 place = NULL;
1078 if ((s->flags & SEC_ALLOC) == 0)
1079 ;
1080 else if ((s->flags & SEC_LOAD) != 0
1081 && strncmp (secname, ".note", 5) == 0
1082 && HAVE_SECTION (hold_interp, ".interp"))
1083 place = &hold_interp;
1084 else if ((s->flags & SEC_HAS_CONTENTS) == 0
1085 && HAVE_SECTION (hold_bss, ".bss"))
1086 place = &hold_bss;
1087 else if ((s->flags & SEC_SMALL_DATA) != 0
1088 && HAVE_SECTION (hold_sdata, ".sdata"))
1089 place = &hold_sdata;
1090 else if ((s->flags & SEC_READONLY) == 0
1091 && HAVE_SECTION (hold_data, ".data"))
1092 place = &hold_data;
1093 else if (strncmp (secname, ".rel", 4) == 0
1094 && (hold_rel.os != NULL
1095 || (hold_rel.os = output_rel_find ()) != NULL))
1096 place = &hold_rel;
1097 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == SEC_READONLY
1098 && HAVE_SECTION (hold_rodata, ".rodata"))
1099 place = &hold_rodata;
1100 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == (SEC_CODE | SEC_READONLY)
1101 && hold_text.os != NULL)
1102 place = &hold_text;
1103
1104 #undef HAVE_SECTION
1105
1106 /* Choose a unique name for the section. This will be needed if the
1107 same section name appears in the input file with different
1108 loadable or allocatable characteristics. */
1109 outsecname = secname;
1110 if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
1111 {
1112 outsecname = bfd_get_unique_section_name (output_bfd,
1113 outsecname,
1114 &count);
1115 if (outsecname == NULL)
1116 einfo ("%F%P: place_orphan failed: %E\n");
1117 }
1118
1119 /* Start building a list of statements for this section.
1120 First save the current statement pointer. */
1121 old = stat_ptr;
1122
1123 /* If we have found an appropriate place for the output section
1124 statements for this orphan, add them to our own private list,
1125 inserting them later into the global statement list. */
1126 if (place != NULL)
1127 {
1128 stat_ptr = &add;
1129 lang_list_init (stat_ptr);
1130 }
1131
1132 if (config.build_constructors)
1133 {
1134 /* If the name of the section is representable in C, then create
1135 symbols to mark the start and the end of the section. */
1136 for (ps = outsecname; *ps != '\0'; ps++)
1137 if (! isalnum ((unsigned char) *ps) && *ps != '_')
1138 break;
1139 if (*ps == '\0')
1140 {
1141 char *symname;
1142 etree_type *e_align;
1143
1144 symname = (char *) xmalloc (ps - outsecname + sizeof "__start_");
1145 sprintf (symname, "__start_%s", outsecname);
1146 e_align = exp_unop (ALIGN_K,
1147 exp_intop ((bfd_vma) 1 << s->alignment_power));
1148 lang_add_assignment (exp_assop ('=', symname, e_align));
1149 }
1150 }
1151
1152 if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
1153 address = exp_intop ((bfd_vma) 0);
1154 else
1155 address = NULL;
1156
1157 os = lang_enter_output_section_statement (outsecname, address, 0,
1158 (bfd_vma) 0,
1159 (etree_type *) NULL,
1160 (etree_type *) NULL,
1161 (etree_type *) NULL);
1162
1163 wild_doit (&os->children, s, os, file);
1164
1165 lang_leave_output_section_statement
1166 ((bfd_vma) 0, "*default*",
1167 (struct lang_output_section_phdr_list *) NULL, "*default*");
1168
1169 if (config.build_constructors && *ps == '\0')
1170 {
1171 char *symname;
1172
1173 /* lang_leave_ouput_section_statement resets stat_ptr. Put
1174 stat_ptr back where we want it. */
1175 if (place != NULL)
1176 stat_ptr = &add;
1177
1178 symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_");
1179 sprintf (symname, "__stop_%s", outsecname);
1180 lang_add_assignment (exp_assop ('=', symname,
1181 exp_nameop (NAME, ".")));
1182 }
1183
1184 /* Restore the global list pointer. */
1185 stat_ptr = old;
1186
1187 if (place != NULL)
1188 {
1189 asection *snew, **pps;
1190
1191 snew = os->bfd_section;
1192 if (place->section != NULL
1193 || (place->os->bfd_section != NULL
1194 && place->os->bfd_section != snew))
1195 {
1196 /* Shuffle the section to make the output file look neater.
1197 This is really only cosmetic. */
1198 if (place->section == NULL)
1199 {
1200 #if 0
1201 /* Finding the end of the list is a little tricky. We
1202 make a wild stab at it by comparing section flags. */
1203 flagword first_flags = place->os->bfd_section->flags;
1204 for (pps = &place->os->bfd_section->next;
1205 *pps != NULL && (*pps)->flags == first_flags;
1206 pps = &(*pps)->next)
1207 ;
1208 place->section = pps;
1209 #else
1210 /* Put orphans after the first section on the list. */
1211 place->section = &place->os->bfd_section->next;
1212 #endif
1213 }
1214
1215 /* Unlink the section. */
1216 for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
1217 ;
1218 *pps = snew->next;
1219
1220 /* Now tack it on to the "place->os" section list. */
1221 snew->next = *place->section;
1222 *place->section = snew;
1223 }
1224 place->section = &snew->next; /* Save the end of this list. */
1225
1226 if (add.head != NULL)
1227 {
1228 /* We try to put the output statements in some sort of
1229 reasonable order here, because they determine the final
1230 load addresses of the orphan sections. */
1231 if (place->stmt == NULL)
1232 {
1233 /* Put the new statement list right at the head. */
1234 *add.tail = place->os->header.next;
1235 place->os->header.next = add.head;
1236 }
1237 else
1238 {
1239 /* Put it after the last orphan statement we added. */
1240 *add.tail = *place->stmt;
1241 *place->stmt = add.head;
1242 }
1243
1244 /* Fix the global list pointer if we happened to tack our
1245 new list at the tail. */
1246 if (*old->tail == add.head)
1247 old->tail = add.tail;
1248
1249 /* Save the end of this list. */
1250 place->stmt = add.tail;
1251 }
1252 }
1253
1254 return true;
1255 }
1256
1257 EOF
1258 fi
1259
1260 if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
1261 cat >>e${EMULATION_NAME}.c <<EOF
1262
1263 static char *
1264 gld${EMULATION_NAME}_get_script (isfile)
1265 int *isfile;
1266 EOF
1267
1268 if test -n "$COMPILE_IN"
1269 then
1270 # Scripts compiled in.
1271
1272 # sed commands to quote an ld script as a C string.
1273 sc="-f stringify.sed"
1274
1275 cat >>e${EMULATION_NAME}.c <<EOF
1276 {
1277 *isfile = 0;
1278
1279 if (link_info.relocateable == true && config.build_constructors == true)
1280 return
1281 EOF
1282 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1283 echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
1284 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1285 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1286 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1287 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1288 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1289
1290 if test -n "$GENERATE_SHLIB_SCRIPT" ; then
1291 echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
1292 sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
1293 fi
1294
1295 echo ' ; else return' >> e${EMULATION_NAME}.c
1296 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1297 echo '; }' >> e${EMULATION_NAME}.c
1298
1299 else
1300 # Scripts read from the filesystem.
1301
1302 cat >>e${EMULATION_NAME}.c <<EOF
1303 {
1304 *isfile = 1;
1305
1306 if (link_info.relocateable == true && config.build_constructors == true)
1307 return "ldscripts/${EMULATION_NAME}.xu";
1308 else if (link_info.relocateable == true)
1309 return "ldscripts/${EMULATION_NAME}.xr";
1310 else if (!config.text_read_only)
1311 return "ldscripts/${EMULATION_NAME}.xbn";
1312 else if (!config.magic_demand_paged)
1313 return "ldscripts/${EMULATION_NAME}.xn";
1314 else if (link_info.shared)
1315 return "ldscripts/${EMULATION_NAME}.xs";
1316 else
1317 return "ldscripts/${EMULATION_NAME}.x";
1318 }
1319
1320 EOF
1321 fi
1322 fi
1323
1324 if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1325
1326 if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
1327
1328 if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
1329 cat >>e${EMULATION_NAME}.c <<EOF
1330 $PARSE_AND_LIST_PROLOGUE
1331 EOF
1332 fi
1333
1334 cat >>e${EMULATION_NAME}.c <<EOF
1335
1336 #include "getopt.h"
1337
1338 #define OPTION_DISABLE_NEW_DTAGS (400)
1339 #define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
1340 #define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
1341
1342 static struct option longopts[] =
1343 {
1344 EOF
1345
1346 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1347 cat >>e${EMULATION_NAME}.c <<EOF
1348 /* getopt allows abbreviations, so we do this to stop it from
1349 treating -d/-e as abbreviations for these options. */
1350 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1351 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1352 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
1353 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
1354 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1355 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1356 EOF
1357 fi
1358
1359 if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
1360 cat >>e${EMULATION_NAME}.c <<EOF
1361 $PARSE_AND_LIST_LONGOPTS
1362 EOF
1363 fi
1364
1365 cat >>e${EMULATION_NAME}.c <<EOF
1366 {NULL, no_argument, NULL, 0}
1367 };
1368
1369
1370 static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
1371
1372 static int
1373 gld${EMULATION_NAME}_parse_args (argc, argv)
1374 int argc;
1375 char ** argv;
1376 {
1377 int longind;
1378 int optc;
1379 static int prevoptind = -1;
1380 int prevopterr = opterr;
1381 int wanterror;
1382
1383 if (prevoptind != optind)
1384 opterr = 0;
1385
1386 wanterror = opterr;
1387 prevoptind = optind;
1388
1389 optc = getopt_long_only (argc, argv,
1390 "-${PARSE_AND_LIST_SHORTOPTS}z:", longopts,
1391 &longind);
1392 opterr = prevopterr;
1393
1394 switch (optc)
1395 {
1396 default:
1397 if (wanterror)
1398 xexit (1);
1399 optind = prevoptind;
1400 return 0;
1401
1402 EOF
1403
1404 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1405 cat >>e${EMULATION_NAME}.c <<EOF
1406 case OPTION_DISABLE_NEW_DTAGS:
1407 link_info.new_dtags = false;
1408 break;
1409
1410 case OPTION_ENABLE_NEW_DTAGS:
1411 link_info.new_dtags = true;
1412 break;
1413
1414 case OPTION_GROUP:
1415 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
1416 /* Groups must be self-contained. */
1417 link_info.no_undefined = true;
1418 break;
1419
1420 case 'z':
1421 if (strcmp (optarg, "initfirst") == 0)
1422 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
1423 else if (strcmp (optarg, "interpose") == 0)
1424 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
1425 else if (strcmp (optarg, "loadfltr") == 0)
1426 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
1427 else if (strcmp (optarg, "nodefaultlib") == 0)
1428 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
1429 else if (strcmp (optarg, "nodelete") == 0)
1430 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
1431 else if (strcmp (optarg, "nodlopen") == 0)
1432 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
1433 else if (strcmp (optarg, "nodump") == 0)
1434 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
1435 else if (strcmp (optarg, "now") == 0)
1436 {
1437 link_info.flags |= (bfd_vma) DF_BIND_NOW;
1438 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
1439 }
1440 else if (strcmp (optarg, "origin") == 0)
1441 {
1442 link_info.flags |= (bfd_vma) DF_ORIGIN;
1443 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
1444 }
1445 else if (strcmp (optarg, "defs") == 0)
1446 link_info.no_undefined = true;
1447 /* What about the other Solaris -z options? FIXME. */
1448 break;
1449 EOF
1450 fi
1451
1452 if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
1453 cat >>e${EMULATION_NAME}.c <<EOF
1454 $PARSE_AND_LIST_ARGS_CASES
1455 EOF
1456 fi
1457
1458 cat >>e${EMULATION_NAME}.c <<EOF
1459 }
1460
1461 return 1;
1462 }
1463
1464 EOF
1465 fi
1466
1467 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1468 cat >>e${EMULATION_NAME}.c <<EOF
1469
1470 static void gld${EMULATION_NAME}_list_options PARAMS ((FILE * file));
1471
1472 static void
1473 gld${EMULATION_NAME}_list_options (file)
1474 FILE * file;
1475 {
1476 EOF
1477
1478 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1479 cat >>e${EMULATION_NAME}.c <<EOF
1480 fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
1481 fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
1482 fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
1483 fprintf (file, _(" -z defs\t\tDisallows undefined symbols\n"));
1484 fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
1485 fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
1486 fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
1487 fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
1488 fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
1489 fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));
1490 fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n"));
1491 fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n"));
1492 fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n"));
1493 fprintf (file, _("\t\t\t at runtime\n"));
1494 fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n"));
1495 EOF
1496 fi
1497
1498 if test -n "$PARSE_AND_LIST_OPTIONS" ; then
1499 cat >>e${EMULATION_NAME}.c <<EOF
1500 $PARSE_AND_LIST_OPTIONS
1501 EOF
1502 fi
1503
1504 cat >>e${EMULATION_NAME}.c <<EOF
1505 }
1506 EOF
1507
1508 if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
1509 cat >>e${EMULATION_NAME}.c <<EOF
1510 $PARSE_AND_LIST_EPILOGUE
1511 EOF
1512 fi
1513 fi
1514 else
1515 if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
1516 cat >>e${EMULATION_NAME}.c <<EOF
1517 #define gld${EMULATION_NAME}_parse_args NULL
1518 EOF
1519 fi
1520 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1521 cat >>e${EMULATION_NAME}.c <<EOF
1522 #define gld${EMULATION_NAME}_list_options NULL
1523 EOF
1524 fi
1525 fi
1526
1527 cat >>e${EMULATION_NAME}.c <<EOF
1528
1529 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1530 {
1531 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
1532 ${LDEMUL_SYSLIB-syslib_default},
1533 ${LDEMUL_HLL-hll_default},
1534 ${LDEMUL_AFTER_PARSE-after_parse_default},
1535 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
1536 ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
1537 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
1538 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
1539 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
1540 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
1541 "${EMULATION_NAME}",
1542 "${OUTPUT_FORMAT}",
1543 ${LDEMUL_FINISH-NULL},
1544 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
1545 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
1546 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
1547 ${LDEMUL_SET_SYMBOLS-NULL},
1548 ${LDEMUL_PARSE_ARGS-gld${EMULATION_NAME}_parse_args},
1549 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
1550 ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
1551 ${LDEMUL_RECOGNIZED_FILE-NULL},
1552 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
1553 };
1554 EOF
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