Locale changes from Bruno Haible <haible@clisp.cons.org>.
[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 "${ELFSIZE}" && ELFSIZE=32
6 if [ -z "$MACHINE" ]; then
7 OUTPUT_ARCH=${ARCH}
8 else
9 OUTPUT_ARCH=${ARCH}:${MACHINE}
10 fi
11 cat >e${EMULATION_NAME}.c <<EOF
12 /* This file is is generated by a shell script. DO NOT EDIT! */
13
14 /* ${ELFSIZE} bit ELF emulation code for ${EMULATION_NAME}
15 Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
16 Free Software Foundation, Inc.
17 Written by Steve Chamberlain <sac@cygnus.com>
18 ELF support by Ian Lance Taylor <ian@cygnus.com>
19
20 This file is part of GLD, the Gnu Linker.
21
22 This program is free software; you can redistribute it and/or modify
23 it under the terms of the GNU General Public License as published by
24 the Free Software Foundation; either version 2 of the License, or
25 (at your option) any later version.
26
27 This program is distributed in the hope that it will be useful,
28 but WITHOUT ANY WARRANTY; without even the implied warranty of
29 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 GNU General Public License for more details.
31
32 You should have received a copy of the GNU General Public License
33 along with this program; if not, write to the Free Software
34 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
35
36 #define TARGET_IS_${EMULATION_NAME}
37
38 #include "bfd.h"
39 #include "sysdep.h"
40 #include "libiberty.h"
41 #include "safe-ctype.h"
42
43 #include "bfdlink.h"
44
45 #include "ld.h"
46 #include "ldmain.h"
47 #include "ldmisc.h"
48 #include "ldexp.h"
49 #include "ldlang.h"
50 #include "ldfile.h"
51 #include "ldemul.h"
52 #include "ldgram.h"
53 #include "elf/common.h"
54
55 static void gld${EMULATION_NAME}_before_parse
56 PARAMS ((void));
57 static void gld${EMULATION_NAME}_vercheck
58 PARAMS ((lang_input_statement_type *));
59 static void gld${EMULATION_NAME}_stat_needed
60 PARAMS ((lang_input_statement_type *));
61 static boolean gld${EMULATION_NAME}_try_needed
62 PARAMS ((const char *, int));
63 static boolean gld${EMULATION_NAME}_search_needed
64 PARAMS ((const char *, const char *, int));
65 static void gld${EMULATION_NAME}_check_needed
66 PARAMS ((lang_input_statement_type *));
67 static void gld${EMULATION_NAME}_after_open
68 PARAMS ((void));
69 static void gld${EMULATION_NAME}_find_exp_assignment
70 PARAMS ((etree_type *));
71 static void gld${EMULATION_NAME}_find_statement_assignment
72 PARAMS ((lang_statement_union_type *));
73 static void gld${EMULATION_NAME}_before_allocation
74 PARAMS ((void));
75 static boolean gld${EMULATION_NAME}_open_dynamic_archive
76 PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *));
77 static lang_output_section_statement_type *output_rel_find
78 PARAMS ((void));
79 static asection *output_prev_sec_find
80 PARAMS ((lang_output_section_statement_type *));
81 static boolean gld${EMULATION_NAME}_place_orphan
82 PARAMS ((lang_input_statement_type *, asection *));
83 static char *gld${EMULATION_NAME}_get_script
84 PARAMS ((int *isfile));
85
86 EOF
87
88 # Import any needed special functions and/or overrides.
89 #
90 if test -n "$EXTRA_EM_FILE" ; then
91 . ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
92 fi
93
94 # Functions in this file can be overridden by setting the LDEMUL_* shell
95 # variables. If the name of the overriding function is the same as is
96 # defined in this file, then don't output this file's version.
97 # If a different overriding name is given then output the standard function
98 # as presumably it is called from the overriding function.
99 #
100 if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
101 cat >>e${EMULATION_NAME}.c <<EOF
102
103 static void
104 gld${EMULATION_NAME}_before_parse ()
105 {
106 const bfd_arch_info_type *arch = bfd_scan_arch ("${OUTPUT_ARCH}");
107 if (arch)
108 {
109 ldfile_output_architecture = arch->arch;
110 ldfile_output_machine = arch->mach;
111 ldfile_output_machine_name = arch->printable_name;
112 }
113 else
114 ldfile_output_architecture = bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`;
115 config.dynamic_link = ${DYNAMIC_LINK-true};
116 config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo true ; else echo false ; fi`;
117 }
118
119 EOF
120 fi
121
122 cat >>e${EMULATION_NAME}.c <<EOF
123
124 /* These variables are required to pass information back and forth
125 between after_open and check_needed and stat_needed and vercheck. */
126
127 static struct bfd_link_needed_list *global_needed;
128 static struct stat global_stat;
129 static boolean global_found;
130 static struct bfd_link_needed_list *global_vercheck_needed;
131 static boolean global_vercheck_failed;
132
133
134 /* On Linux, it's possible to have different versions of the same
135 shared library linked against different versions of libc. The
136 dynamic linker somehow tags which libc version to use in
137 /etc/ld.so.cache, and, based on the libc that it sees in the
138 executable, chooses which version of the shared library to use.
139
140 We try to do a similar check here by checking whether this shared
141 library needs any other shared libraries which may conflict with
142 libraries we have already included in the link. If it does, we
143 skip it, and try to find another shared library farther on down the
144 link path.
145
146 This is called via lang_for_each_input_file.
147 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
148 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
149 a conflicting version. */
150
151 static void
152 gld${EMULATION_NAME}_vercheck (s)
153 lang_input_statement_type *s;
154 {
155 const char *soname;
156 struct bfd_link_needed_list *l;
157
158 if (global_vercheck_failed)
159 return;
160 if (s->the_bfd == NULL
161 || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
162 return;
163
164 soname = bfd_elf_get_dt_soname (s->the_bfd);
165 if (soname == NULL)
166 soname = basename (bfd_get_filename (s->the_bfd));
167
168 for (l = global_vercheck_needed; l != NULL; l = l->next)
169 {
170 const char *suffix;
171
172 if (strcmp (soname, l->name) == 0)
173 {
174 /* Probably can't happen, but it's an easy check. */
175 continue;
176 }
177
178 if (strchr (l->name, '/') != NULL)
179 continue;
180
181 suffix = strstr (l->name, ".so.");
182 if (suffix == NULL)
183 continue;
184
185 suffix += sizeof ".so." - 1;
186
187 if (strncmp (soname, l->name, suffix - l->name) == 0)
188 {
189 /* Here we know that S is a dynamic object FOO.SO.VER1, and
190 the object we are considering needs a dynamic object
191 FOO.SO.VER2, and VER1 and VER2 are different. This
192 appears to be a version mismatch, so we tell the caller
193 to try a different version of this library. */
194 global_vercheck_failed = true;
195 return;
196 }
197 }
198 }
199
200
201 /* See if an input file matches a DT_NEEDED entry by running stat on
202 the file. */
203
204 static void
205 gld${EMULATION_NAME}_stat_needed (s)
206 lang_input_statement_type *s;
207 {
208 struct stat st;
209 const char *suffix;
210 const char *soname;
211
212 if (global_found)
213 return;
214 if (s->the_bfd == NULL)
215 return;
216
217 if (bfd_stat (s->the_bfd, &st) != 0)
218 {
219 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
220 return;
221 }
222
223 if (st.st_dev == global_stat.st_dev
224 && st.st_ino == global_stat.st_ino)
225 {
226 global_found = true;
227 return;
228 }
229
230 /* We issue a warning if it looks like we are including two
231 different versions of the same shared library. For example,
232 there may be a problem if -lc picks up libc.so.6 but some other
233 shared library has a DT_NEEDED entry of libc.so.5. This is a
234 heuristic test, and it will only work if the name looks like
235 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
236 If we really want to issue warnings about mixing version numbers
237 of shared libraries, we need to find a better way. */
238
239 if (strchr (global_needed->name, '/') != NULL)
240 return;
241 suffix = strstr (global_needed->name, ".so.");
242 if (suffix == NULL)
243 return;
244 suffix += sizeof ".so." - 1;
245
246 soname = bfd_elf_get_dt_soname (s->the_bfd);
247 if (soname == NULL)
248 soname = basename (s->filename);
249
250 if (strncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
251 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
252 global_needed->name, global_needed->by, soname);
253 }
254
255
256 /* This function is called for each possible name for a dynamic object
257 named by a DT_NEEDED entry. The FORCE parameter indicates whether
258 to skip the check for a conflicting version. */
259
260 static boolean
261 gld${EMULATION_NAME}_try_needed (name, force)
262 const char *name;
263 int force;
264 {
265 bfd *abfd;
266 const char *soname;
267
268 abfd = bfd_openr (name, bfd_get_target (output_bfd));
269 if (abfd == NULL)
270 return false;
271 if (! bfd_check_format (abfd, bfd_object))
272 {
273 bfd_close (abfd);
274 return false;
275 }
276 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
277 {
278 bfd_close (abfd);
279 return false;
280 }
281
282 /* Check whether this object would include any conflicting library
283 versions. If FORCE is set, then we skip this check; we use this
284 the second time around, if we couldn't find any compatible
285 instance of the shared library. */
286
287 if (! force)
288 {
289 struct bfd_link_needed_list *needed;
290
291 if (! bfd_elf_get_bfd_needed_list (abfd, &needed))
292 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
293
294 if (needed != NULL)
295 {
296 global_vercheck_needed = needed;
297 global_vercheck_failed = false;
298 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
299 if (global_vercheck_failed)
300 {
301 bfd_close (abfd);
302 /* Return false to force the caller to move on to try
303 another file on the search path. */
304 return false;
305 }
306
307 /* But wait! It gets much worse. On Linux, if a shared
308 library does not use libc at all, we are supposed to skip
309 it the first time around in case we encounter a shared
310 library later on with the same name which does use the
311 version of libc that we want. This is much too horrible
312 to use on any system other than Linux. */
313
314 EOF
315 case ${target} in
316 *-*-linux-gnu*)
317 cat >>e${EMULATION_NAME}.c <<EOF
318 {
319 struct bfd_link_needed_list *l;
320
321 for (l = needed; l != NULL; l = l->next)
322 if (strncmp (l->name, "libc.so", 7) == 0)
323 break;
324 if (l == NULL)
325 {
326 bfd_close (abfd);
327 return false;
328 }
329 }
330
331 EOF
332 ;;
333 esac
334 cat >>e${EMULATION_NAME}.c <<EOF
335 }
336 }
337
338 /* We've found a dynamic object matching the DT_NEEDED entry. */
339
340 /* We have already checked that there is no other input file of the
341 same name. We must now check again that we are not including the
342 same file twice. We need to do this because on many systems
343 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
344 reference libc.so.1. If we have already included libc.so, we
345 don't want to include libc.so.1 if they are the same file, and we
346 can only check that using stat. */
347
348 if (bfd_stat (abfd, &global_stat) != 0)
349 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
350
351 /* First strip off everything before the last '/'. */
352 soname = basename (abfd->filename);
353
354 if (trace_file_tries)
355 info_msg (_("found %s at %s\n"), soname, name);
356
357 global_found = false;
358 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
359 if (global_found)
360 {
361 /* Return true to indicate that we found the file, even though
362 we aren't going to do anything with it. */
363 return true;
364 }
365
366 /* Tell the ELF backend that we don't want the output file to have a
367 DT_NEEDED entry for this file. */
368 bfd_elf_set_dt_needed_name (abfd, "");
369
370 /* Previos basename call was clobbered in lang_for_each_input_file. */
371 soname = basename (abfd->filename);
372
373 /* Tell the ELF backend that the output file needs a DT_NEEDED
374 entry for this file if it is used to resolve the reference in
375 a regular object. */
376 bfd_elf_set_dt_needed_soname (abfd, soname);
377
378 /* Add this file into the symbol table. */
379 if (! bfd_link_add_symbols (abfd, &link_info))
380 einfo ("%F%B: could not read symbols: %E\n", abfd);
381
382 return true;
383 }
384
385
386 /* Search for a needed file in a path. */
387
388 static boolean
389 gld${EMULATION_NAME}_search_needed (path, name, force)
390 const char *path;
391 const char *name;
392 int force;
393 {
394 const char *s;
395 size_t len;
396
397 if (name[0] == '/')
398 return gld${EMULATION_NAME}_try_needed (name, force);
399
400 if (path == NULL || *path == '\0')
401 return false;
402 len = strlen (name);
403 while (1)
404 {
405 char *filename, *sset;
406
407 s = strchr (path, ':');
408 if (s == NULL)
409 s = path + strlen (path);
410
411 filename = (char *) xmalloc (s - path + len + 2);
412 if (s == path)
413 sset = filename;
414 else
415 {
416 memcpy (filename, path, s - path);
417 filename[s - path] = '/';
418 sset = filename + (s - path) + 1;
419 }
420 strcpy (sset, name);
421
422 if (gld${EMULATION_NAME}_try_needed (filename, force))
423 return true;
424
425 free (filename);
426
427 if (*s == '\0')
428 break;
429 path = s + 1;
430 }
431
432 return false;
433 }
434
435 EOF
436 if [ "x${host}" = "x${target}" ] ; then
437 case " ${EMULATION_LIBPATH} " in
438 *" ${EMULATION_NAME} "*)
439 case ${target} in
440 *-*-linux-gnu*)
441 cat >>e${EMULATION_NAME}.c <<EOF
442
443 /* For a native linker, check the file /etc/ld.so.conf for directories
444 in which we may find shared libraries. /etc/ld.so.conf is really
445 only meaningful on Linux. */
446
447 static boolean gld${EMULATION_NAME}_check_ld_so_conf
448 PARAMS ((const char *, int));
449
450 static boolean
451 gld${EMULATION_NAME}_check_ld_so_conf (name, force)
452 const char *name;
453 int force;
454 {
455 static boolean initialized;
456 static char *ld_so_conf;
457
458 if (! initialized)
459 {
460 FILE *f;
461
462 f = fopen ("/etc/ld.so.conf", FOPEN_RT);
463 if (f != NULL)
464 {
465 char *b;
466 size_t len, alloc;
467 int c;
468
469 len = 0;
470 alloc = 100;
471 b = (char *) xmalloc (alloc);
472
473 while ((c = getc (f)) != EOF)
474 {
475 if (len + 1 >= alloc)
476 {
477 alloc *= 2;
478 b = (char *) xrealloc (b, alloc);
479 }
480 if (c != ':'
481 && c != ' '
482 && c != '\t'
483 && c != '\n'
484 && c != ',')
485 {
486 b[len] = c;
487 ++len;
488 }
489 else
490 {
491 if (len > 0 && b[len - 1] != ':')
492 {
493 b[len] = ':';
494 ++len;
495 }
496 }
497 }
498
499 if (len > 0 && b[len - 1] == ':')
500 --len;
501
502 if (len > 0)
503 b[len] = '\0';
504 else
505 {
506 free (b);
507 b = NULL;
508 }
509
510 fclose (f);
511
512 ld_so_conf = b;
513 }
514
515 initialized = true;
516 }
517
518 if (ld_so_conf == NULL)
519 return false;
520
521 return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force);
522 }
523
524 EOF
525 # Linux
526 ;;
527 esac
528 esac
529 fi
530 cat >>e${EMULATION_NAME}.c <<EOF
531
532 /* See if an input file matches a DT_NEEDED entry by name. */
533
534 static void
535 gld${EMULATION_NAME}_check_needed (s)
536 lang_input_statement_type *s;
537 {
538 if (global_found)
539 return;
540
541 if (s->filename != NULL)
542 {
543 const char *f;
544
545 if (strcmp (s->filename, global_needed->name) == 0)
546 {
547 global_found = true;
548 return;
549 }
550
551 if (s->search_dirs_flag)
552 {
553 f = strrchr (s->filename, '/');
554 if (f != NULL
555 && strcmp (f + 1, global_needed->name) == 0)
556 {
557 global_found = true;
558 return;
559 }
560 }
561 }
562
563 if (s->the_bfd != NULL)
564 {
565 const char *soname;
566
567 soname = bfd_elf_get_dt_soname (s->the_bfd);
568 if (soname != NULL
569 && strcmp (soname, global_needed->name) == 0)
570 {
571 global_found = true;
572 return;
573 }
574 }
575 }
576
577 EOF
578
579 if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
580 cat >>e${EMULATION_NAME}.c <<EOF
581
582 /* This is called after all the input files have been opened. */
583
584 static void
585 gld${EMULATION_NAME}_after_open ()
586 {
587 struct bfd_link_needed_list *needed, *l;
588
589 /* We only need to worry about this when doing a final link. */
590 if (link_info.relocateable || link_info.shared)
591 return;
592
593 /* Get the list of files which appear in DT_NEEDED entries in
594 dynamic objects included in the link (often there will be none).
595 For each such file, we want to track down the corresponding
596 library, and include the symbol table in the link. This is what
597 the runtime dynamic linker will do. Tracking the files down here
598 permits one dynamic object to include another without requiring
599 special action by the person doing the link. Note that the
600 needed list can actually grow while we are stepping through this
601 loop. */
602 needed = bfd_elf_get_needed_list (output_bfd, &link_info);
603 for (l = needed; l != NULL; l = l->next)
604 {
605 struct bfd_link_needed_list *ll;
606 int force;
607
608 /* If we've already seen this file, skip it. */
609 for (ll = needed; ll != l; ll = ll->next)
610 if (strcmp (ll->name, l->name) == 0)
611 break;
612 if (ll != l)
613 continue;
614
615 /* See if this file was included in the link explicitly. */
616 global_needed = l;
617 global_found = false;
618 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
619 if (global_found)
620 continue;
621
622 if (trace_file_tries)
623 info_msg (_("%s needed by %B\n"), l->name, l->by);
624
625 /* We need to find this file and include the symbol table. We
626 want to search for the file in the same way that the dynamic
627 linker will search. That means that we want to use
628 rpath_link, rpath, then the environment variable
629 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
630 entries (native only), then the linker script LIB_SEARCH_DIRS.
631 We do not search using the -L arguments.
632
633 We search twice. The first time, we skip objects which may
634 introduce version mismatches. The second time, we force
635 their use. See gld${EMULATION_NAME}_vercheck comment. */
636 for (force = 0; force < 2; force++)
637 {
638 size_t len;
639 search_dirs_type *search;
640 EOF
641 if [ "x${host}" = "x${target}" ] ; then
642 case " ${EMULATION_LIBPATH} " in
643 *" ${EMULATION_NAME} "*)
644 cat >>e${EMULATION_NAME}.c <<EOF
645 const char *lib_path;
646 struct bfd_link_needed_list *rp;
647 int found;
648 EOF
649 ;;
650 esac
651 fi
652 cat >>e${EMULATION_NAME}.c <<EOF
653
654 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
655 l->name, force))
656 break;
657 EOF
658 if [ "x${host}" = "x${target}" ] ; then
659 case " ${EMULATION_LIBPATH} " in
660 *" ${EMULATION_NAME} "*)
661 cat >>e${EMULATION_NAME}.c <<EOF
662 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
663 l->name, force))
664 break;
665 if (command_line.rpath_link == NULL
666 && command_line.rpath == NULL)
667 {
668 lib_path = (const char *) getenv ("LD_RUN_PATH");
669 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name,
670 force))
671 break;
672 }
673 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
674 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force))
675 break;
676
677 found = 0;
678 rp = bfd_elf_get_runpath_list (output_bfd, &link_info);
679 for (; !found && rp != NULL; rp = rp->next)
680 {
681 found = (rp->by == l->by
682 && gld${EMULATION_NAME}_search_needed (rp->name,
683 l->name,
684 force));
685 }
686 if (found)
687 break;
688
689 EOF
690 ;;
691 esac
692 fi
693 cat >>e${EMULATION_NAME}.c <<EOF
694 len = strlen (l->name);
695 for (search = search_head; search != NULL; search = search->next)
696 {
697 char *filename;
698
699 if (search->cmdline)
700 continue;
701 filename = (char *) xmalloc (strlen (search->name) + len + 2);
702 sprintf (filename, "%s/%s", search->name, l->name);
703 if (gld${EMULATION_NAME}_try_needed (filename, force))
704 break;
705 free (filename);
706 }
707 if (search != NULL)
708 break;
709 EOF
710 if [ "x${host}" = "x${target}" ] ; then
711 case " ${EMULATION_LIBPATH} " in
712 *" ${EMULATION_NAME} "*)
713 case ${target} in
714 *-*-linux-gnu*)
715 cat >>e${EMULATION_NAME}.c <<EOF
716 if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
717 break;
718 EOF
719 # Linux
720 ;;
721 esac
722 ;;
723 esac
724 fi
725 cat >>e${EMULATION_NAME}.c <<EOF
726 }
727
728 if (force < 2)
729 continue;
730
731 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
732 l->name, l->by);
733 }
734 }
735
736 EOF
737 fi
738
739 cat >>e${EMULATION_NAME}.c <<EOF
740
741 /* Look through an expression for an assignment statement. */
742
743 static void
744 gld${EMULATION_NAME}_find_exp_assignment (exp)
745 etree_type *exp;
746 {
747 struct bfd_link_hash_entry *h;
748
749 switch (exp->type.node_class)
750 {
751 case etree_provide:
752 h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
753 false, false, false);
754 if (h == NULL)
755 break;
756
757 /* We call record_link_assignment even if the symbol is defined.
758 This is because if it is defined by a dynamic object, we
759 actually want to use the value defined by the linker script,
760 not the value from the dynamic object (because we are setting
761 symbols like etext). If the symbol is defined by a regular
762 object, then, as it happens, calling record_link_assignment
763 will do no harm. */
764
765 /* Fall through. */
766 case etree_assign:
767 if (strcmp (exp->assign.dst, ".") != 0)
768 {
769 if (! (bfd_elf${ELFSIZE}_record_link_assignment
770 (output_bfd, &link_info, exp->assign.dst,
771 exp->type.node_class == etree_provide ? true : false)))
772 einfo ("%P%F: failed to record assignment to %s: %E\n",
773 exp->assign.dst);
774 }
775 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
776 break;
777
778 case etree_binary:
779 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
780 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
781 break;
782
783 case etree_trinary:
784 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
785 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
786 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
787 break;
788
789 case etree_unary:
790 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
791 break;
792
793 default:
794 break;
795 }
796 }
797
798
799 /* This is called by the before_allocation routine via
800 lang_for_each_statement. It locates any assignment statements, and
801 tells the ELF backend about them, in case they are assignments to
802 symbols which are referred to by dynamic objects. */
803
804 static void
805 gld${EMULATION_NAME}_find_statement_assignment (s)
806 lang_statement_union_type *s;
807 {
808 if (s->header.type == lang_assignment_statement_enum)
809 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
810 }
811
812 EOF
813
814 if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
815 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
816 ELF_INTERPRETER_SET_DEFAULT="
817 if (sinterp != NULL)
818 {
819 sinterp->contents = ${ELF_INTERPRETER_NAME};
820 sinterp->_raw_size = strlen (sinterp->contents) + 1;
821 }
822
823 "
824 else
825 ELF_INTERPRETER_SET_DEFAULT=
826 fi
827 cat >>e${EMULATION_NAME}.c <<EOF
828
829 /* This is called after the sections have been attached to output
830 sections, but before any sizes or addresses have been set. */
831
832 static void
833 gld${EMULATION_NAME}_before_allocation ()
834 {
835 const char *rpath;
836 asection *sinterp;
837
838 /* If we are going to make any variable assignments, we need to let
839 the ELF backend know about them in case the variables are
840 referred to by dynamic objects. */
841 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
842
843 /* Let the ELF backend work out the sizes of any sections required
844 by dynamic linking. */
845 rpath = command_line.rpath;
846 if (rpath == NULL)
847 rpath = (const char *) getenv ("LD_RUN_PATH");
848 if (! (bfd_elf${ELFSIZE}_size_dynamic_sections
849 (output_bfd, command_line.soname, rpath,
850 command_line.filter_shlib,
851 (const char * const *) command_line.auxiliary_filters,
852 &link_info, &sinterp, lang_elf_version_info)))
853 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
854 ${ELF_INTERPRETER_SET_DEFAULT}
855 /* Let the user override the dynamic linker we are using. */
856 if (command_line.interpreter != NULL
857 && sinterp != NULL)
858 {
859 sinterp->contents = (bfd_byte *) command_line.interpreter;
860 sinterp->_raw_size = strlen (command_line.interpreter) + 1;
861 }
862
863 /* Look for any sections named .gnu.warning. As a GNU extensions,
864 we treat such sections as containing warning messages. We print
865 out the warning message, and then zero out the section size so
866 that it does not get copied into the output file. */
867
868 {
869 LANG_FOR_EACH_INPUT_STATEMENT (is)
870 {
871 asection *s;
872 bfd_size_type sz;
873 char *msg;
874 boolean ret;
875
876 if (is->just_syms_flag)
877 continue;
878
879 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
880 if (s == NULL)
881 continue;
882
883 sz = bfd_section_size (is->the_bfd, s);
884 msg = xmalloc ((size_t) sz + 1);
885 if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz))
886 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
887 is->the_bfd);
888 msg[sz] = '\0';
889 ret = link_info.callbacks->warning (&link_info, msg,
890 (const char *) NULL,
891 is->the_bfd, (asection *) NULL,
892 (bfd_vma) 0);
893 ASSERT (ret);
894 free (msg);
895
896 /* Clobber the section size, so that we don't waste copying the
897 warning into the output file. */
898 s->_raw_size = 0;
899 }
900 }
901 }
902
903 EOF
904 fi
905
906 if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
907 cat >>e${EMULATION_NAME}.c <<EOF
908
909 /* Try to open a dynamic archive. This is where we know that ELF
910 dynamic libraries have an extension of .so (or .sl on oddball systems
911 like hpux). */
912
913 static boolean
914 gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
915 const char *arch;
916 search_dirs_type *search;
917 lang_input_statement_type *entry;
918 {
919 const char *filename;
920 char *string;
921
922 if (! entry->is_archive)
923 return false;
924
925 filename = entry->filename;
926
927 /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
928 is defined, but it does not seem worth the headache to optimize
929 away those two bytes of space. */
930 string = (char *) xmalloc (strlen (search->name)
931 + strlen (filename)
932 + strlen (arch)
933 #ifdef EXTRA_SHLIB_EXTENSION
934 + strlen (EXTRA_SHLIB_EXTENSION)
935 #endif
936 + sizeof "/lib.so");
937
938 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
939
940 #ifdef EXTRA_SHLIB_EXTENSION
941 /* Try the .so extension first. If that fails build a new filename
942 using EXTRA_SHLIB_EXTENSION. */
943 if (! ldfile_try_open_bfd (string, entry))
944 sprintf (string, "%s/lib%s%s%s", search->name,
945 filename, arch, EXTRA_SHLIB_EXTENSION);
946 #endif
947
948 if (! ldfile_try_open_bfd (string, entry))
949 {
950 free (string);
951 return false;
952 }
953
954 entry->filename = string;
955
956 /* We have found a dynamic object to include in the link. The ELF
957 backend linker will create a DT_NEEDED entry in the .dynamic
958 section naming this file. If this file includes a DT_SONAME
959 entry, it will be used. Otherwise, the ELF linker will just use
960 the name of the file. For an archive found by searching, like
961 this one, the DT_NEEDED entry should consist of just the name of
962 the file, without the path information used to find it. Note
963 that we only need to do this if we have a dynamic object; an
964 archive will never be referenced by a DT_NEEDED entry.
965
966 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
967 very pretty. I haven't been able to think of anything that is
968 pretty, though. */
969 if (bfd_check_format (entry->the_bfd, bfd_object)
970 && (entry->the_bfd->flags & DYNAMIC) != 0)
971 {
972 ASSERT (entry->is_archive && entry->search_dirs_flag);
973
974 /* Rather than duplicating the logic above. Just use the
975 filename we recorded earlier. */
976
977 filename = xstrdup (basename (entry->filename));
978 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
979 }
980
981 return true;
982 }
983
984 EOF
985 fi
986
987 if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
988 cat >>e${EMULATION_NAME}.c <<EOF
989
990 /* A variant of lang_output_section_find. Used by place_orphan. */
991
992 static lang_output_section_statement_type *
993 output_rel_find ()
994 {
995 lang_statement_union_type *u;
996 lang_output_section_statement_type *lookup;
997
998 for (u = lang_output_section_statement.head;
999 u != (lang_statement_union_type *) NULL;
1000 u = lookup->next)
1001 {
1002 lookup = &u->output_section_statement;
1003 if (strncmp (".rel", lookup->name, 4) == 0
1004 && lookup->bfd_section != NULL
1005 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1006 {
1007 return lookup;
1008 }
1009 }
1010 return (lang_output_section_statement_type *) NULL;
1011 }
1012
1013 /* Find the last output section before given output statement.
1014 Used by place_orphan. */
1015
1016 static asection *
1017 output_prev_sec_find (os)
1018 lang_output_section_statement_type *os;
1019 {
1020 asection *s = (asection *) NULL;
1021 lang_statement_union_type *u;
1022 lang_output_section_statement_type *lookup;
1023
1024 for (u = lang_output_section_statement.head;
1025 u != (lang_statement_union_type *) NULL;
1026 u = lookup->next)
1027 {
1028 lookup = &u->output_section_statement;
1029 if (lookup == os)
1030 return s;
1031
1032 if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL)
1033 s = lookup->bfd_section;
1034 }
1035
1036 return NULL;
1037 }
1038
1039 /* Place an orphan section. We use this to put random SHF_ALLOC
1040 sections in the right segment. */
1041
1042 struct orphan_save {
1043 lang_output_section_statement_type *os;
1044 asection **section;
1045 lang_statement_union_type **stmt;
1046 };
1047
1048 static boolean
1049 gld${EMULATION_NAME}_place_orphan (file, s)
1050 lang_input_statement_type *file;
1051 asection *s;
1052 {
1053 static struct orphan_save hold_text;
1054 static struct orphan_save hold_rodata;
1055 static struct orphan_save hold_data;
1056 static struct orphan_save hold_bss;
1057 static struct orphan_save hold_rel;
1058 static struct orphan_save hold_interp;
1059 static struct orphan_save hold_sdata;
1060 static int count = 1;
1061 struct orphan_save *place;
1062 lang_statement_list_type *old;
1063 lang_statement_list_type add;
1064 etree_type *address;
1065 const char *secname;
1066 const char *outsecname;
1067 const char *ps = NULL;
1068 lang_output_section_statement_type *os;
1069
1070 secname = bfd_get_section_name (s->owner, s);
1071
1072 if (! config.unique_orphan_sections && ! unique_section_p (secname))
1073 {
1074 /* Look through the script to see where to place this section. */
1075 os = lang_output_section_find (secname);
1076
1077 if (os != NULL
1078 && (os->bfd_section == NULL
1079 || ((s->flags ^ os->bfd_section->flags)
1080 & (SEC_LOAD | SEC_ALLOC)) == 0))
1081 {
1082 /* We already have an output section statement with this
1083 name, and its bfd section, if any, has compatible flags. */
1084 lang_add_section (&os->children, s, os, file);
1085 return true;
1086 }
1087 }
1088
1089 if (hold_text.os == NULL)
1090 hold_text.os = lang_output_section_find (".text");
1091
1092 /* If this is a final link, then always put .gnu.warning.SYMBOL
1093 sections into the .text section to get them out of the way. */
1094 if (! link_info.shared
1095 && ! link_info.relocateable
1096 && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
1097 && hold_text.os != NULL)
1098 {
1099 lang_add_section (&hold_text.os->children, s, hold_text.os, file);
1100 return true;
1101 }
1102
1103 /* Decide which segment the section should go in based on the
1104 section name and section flags. We put loadable .note sections
1105 right after the .interp section, so that the PT_NOTE segment is
1106 stored right after the program headers where the OS can read it
1107 in the first page. */
1108 #define HAVE_SECTION(hold, name) \
1109 (hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
1110
1111 if (s->flags & SEC_EXCLUDE)
1112 {
1113 if (s->output_section == NULL)
1114 s->output_section = bfd_abs_section_ptr;
1115 return true;
1116 }
1117
1118 place = NULL;
1119 if ((s->flags & SEC_ALLOC) == 0)
1120 ;
1121 else if ((s->flags & SEC_LOAD) != 0
1122 && strncmp (secname, ".note", 5) == 0
1123 && HAVE_SECTION (hold_interp, ".interp"))
1124 place = &hold_interp;
1125 else if ((s->flags & SEC_HAS_CONTENTS) == 0
1126 && HAVE_SECTION (hold_bss, ".bss"))
1127 place = &hold_bss;
1128 else if ((s->flags & SEC_SMALL_DATA) != 0
1129 && HAVE_SECTION (hold_sdata, ".sdata"))
1130 place = &hold_sdata;
1131 else if ((s->flags & SEC_READONLY) == 0
1132 && HAVE_SECTION (hold_data, ".data"))
1133 place = &hold_data;
1134 else if (strncmp (secname, ".rel", 4) == 0
1135 && (hold_rel.os != NULL
1136 || (hold_rel.os = output_rel_find ()) != NULL))
1137 {
1138 if (! link_info.relocateable && link_info.combreloc)
1139 {
1140 if (strncmp (secname, ".rela", 5) == 0)
1141 os = lang_output_section_find (".rela.dyn");
1142 else
1143 os = lang_output_section_find (".rel.dyn");
1144
1145 if (os != NULL
1146 && os->bfd_section != NULL
1147 && ((s->flags ^ os->bfd_section->flags)
1148 & (SEC_LOAD | SEC_ALLOC)) == 0)
1149 {
1150 lang_add_section (&os->children, s, os, file);
1151 return true;
1152 }
1153 }
1154 place = &hold_rel;
1155 }
1156 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == SEC_READONLY
1157 && HAVE_SECTION (hold_rodata, ".rodata"))
1158 place = &hold_rodata;
1159 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == (SEC_CODE | SEC_READONLY)
1160 && hold_text.os != NULL)
1161 place = &hold_text;
1162
1163 #undef HAVE_SECTION
1164
1165 /* Choose a unique name for the section. This will be needed if the
1166 same section name appears in the input file with different
1167 loadable or allocatable characteristics. */
1168 outsecname = secname;
1169 if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
1170 {
1171 outsecname = bfd_get_unique_section_name (output_bfd,
1172 outsecname,
1173 &count);
1174 if (outsecname == NULL)
1175 einfo ("%F%P: place_orphan failed: %E\n");
1176 }
1177
1178 /* Start building a list of statements for this section.
1179 First save the current statement pointer. */
1180 old = stat_ptr;
1181
1182 /* If we have found an appropriate place for the output section
1183 statements for this orphan, add them to our own private list,
1184 inserting them later into the global statement list. */
1185 if (place != NULL)
1186 {
1187 stat_ptr = &add;
1188 lang_list_init (stat_ptr);
1189 }
1190
1191 if (config.build_constructors)
1192 {
1193 /* If the name of the section is representable in C, then create
1194 symbols to mark the start and the end of the section. */
1195 for (ps = outsecname; *ps != '\0'; ps++)
1196 if (! ISALNUM (*ps) && *ps != '_')
1197 break;
1198 if (*ps == '\0')
1199 {
1200 char *symname;
1201 etree_type *e_align;
1202
1203 symname = (char *) xmalloc (ps - outsecname + sizeof "__start_");
1204 sprintf (symname, "__start_%s", outsecname);
1205 e_align = exp_unop (ALIGN_K,
1206 exp_intop ((bfd_vma) 1 << s->alignment_power));
1207 lang_add_assignment (exp_assop ('=', symname, e_align));
1208 }
1209 }
1210
1211 if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
1212 address = exp_intop ((bfd_vma) 0);
1213 else
1214 address = NULL;
1215
1216 os = lang_enter_output_section_statement (outsecname, address, 0,
1217 (bfd_vma) 0,
1218 (etree_type *) NULL,
1219 (etree_type *) NULL,
1220 (etree_type *) NULL);
1221
1222 lang_add_section (&os->children, s, os, file);
1223
1224 lang_leave_output_section_statement
1225 ((bfd_vma) 0, "*default*",
1226 (struct lang_output_section_phdr_list *) NULL, "*default*");
1227
1228 if (config.build_constructors && *ps == '\0')
1229 {
1230 char *symname;
1231
1232 /* lang_leave_ouput_section_statement resets stat_ptr. Put
1233 stat_ptr back where we want it. */
1234 if (place != NULL)
1235 stat_ptr = &add;
1236
1237 symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_");
1238 sprintf (symname, "__stop_%s", outsecname);
1239 lang_add_assignment (exp_assop ('=', symname,
1240 exp_nameop (NAME, ".")));
1241 }
1242
1243 /* Restore the global list pointer. */
1244 stat_ptr = old;
1245
1246 if (place != NULL)
1247 {
1248 asection *snew, **pps;
1249
1250 snew = os->bfd_section;
1251
1252 /* Shuffle the bfd section list to make the output file look
1253 neater. This is really only cosmetic. */
1254 if (place->section == NULL)
1255 {
1256 asection *bfd_section = place->os->bfd_section;
1257
1258 /* If the output statement hasn't been used to place
1259 any input sections (and thus doesn't have an output
1260 bfd_section), look for the closest prior output statement
1261 having an output section. */
1262 if (bfd_section == NULL)
1263 bfd_section = output_prev_sec_find (place->os);
1264
1265 if (bfd_section != NULL && bfd_section != snew)
1266 place->section = &bfd_section->next;
1267 }
1268
1269 if (place->section != NULL)
1270 {
1271 /* Unlink the section. */
1272 for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
1273 ;
1274 *pps = snew->next;
1275
1276 /* Now tack it on to the "place->os" section list. */
1277 snew->next = *place->section;
1278 *place->section = snew;
1279 }
1280
1281 /* Save the end of this list. Further ophans of this type will
1282 follow the one we've just added. */
1283 place->section = &snew->next;
1284
1285 /* The following is non-cosmetic. We try to put the output
1286 statements in some sort of reasonable order here, because
1287 they determine the final load addresses of the orphan
1288 sections. In addition, placing output statements in the
1289 wrong order may require extra segments. For instance,
1290 given a typical situation of all read-only sections placed
1291 in one segment and following that a segment containing all
1292 the read-write sections, we wouldn't want to place an orphan
1293 read/write section before or amongst the read-only ones. */
1294 if (add.head != NULL)
1295 {
1296 if (place->stmt == NULL)
1297 {
1298 /* Put the new statement list right at the head. */
1299 *add.tail = place->os->header.next;
1300 place->os->header.next = add.head;
1301 }
1302 else
1303 {
1304 /* Put it after the last orphan statement we added. */
1305 *add.tail = *place->stmt;
1306 *place->stmt = add.head;
1307 }
1308
1309 /* Fix the global list pointer if we happened to tack our
1310 new list at the tail. */
1311 if (*old->tail == add.head)
1312 old->tail = add.tail;
1313
1314 /* Save the end of this list. */
1315 place->stmt = add.tail;
1316 }
1317 }
1318
1319 return true;
1320 }
1321
1322 EOF
1323 fi
1324
1325 if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
1326 cat >>e${EMULATION_NAME}.c <<EOF
1327
1328 static char *
1329 gld${EMULATION_NAME}_get_script (isfile)
1330 int *isfile;
1331 EOF
1332
1333 if test -n "$COMPILE_IN"
1334 then
1335 # Scripts compiled in.
1336
1337 # sed commands to quote an ld script as a C string.
1338 sc="-f stringify.sed"
1339
1340 cat >>e${EMULATION_NAME}.c <<EOF
1341 {
1342 *isfile = 0;
1343
1344 if (link_info.relocateable == true && config.build_constructors == true)
1345 return
1346 EOF
1347 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1348 echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
1349 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1350 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1351 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1352 if ! cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then
1353 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1354 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1355 fi
1356 if test -n "$GENERATE_SHLIB_SCRIPT" ; then
1357 echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
1358 sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
1359 echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
1360 sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
1361 fi
1362 echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
1363 sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
1364 echo ' ; else return' >> e${EMULATION_NAME}.c
1365 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1366 echo '; }' >> e${EMULATION_NAME}.c
1367
1368 else
1369 # Scripts read from the filesystem.
1370
1371 cat >>e${EMULATION_NAME}.c <<EOF
1372 {
1373 *isfile = 1;
1374
1375 if (link_info.relocateable == true && config.build_constructors == true)
1376 return "ldscripts/${EMULATION_NAME}.xu";
1377 else if (link_info.relocateable == true)
1378 return "ldscripts/${EMULATION_NAME}.xr";
1379 else if (!config.text_read_only)
1380 return "ldscripts/${EMULATION_NAME}.xbn";
1381 else if (!config.magic_demand_paged)
1382 return "ldscripts/${EMULATION_NAME}.xn";
1383 else if (link_info.shared)
1384 return "ldscripts/${EMULATION_NAME}.xs";
1385 else
1386 return "ldscripts/${EMULATION_NAME}.x";
1387 }
1388
1389 EOF
1390 fi
1391 fi
1392
1393 if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1394
1395 if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
1396
1397 if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
1398 cat >>e${EMULATION_NAME}.c <<EOF
1399 $PARSE_AND_LIST_PROLOGUE
1400 EOF
1401 fi
1402
1403 cat >>e${EMULATION_NAME}.c <<EOF
1404
1405 #include "getopt.h"
1406
1407 #define OPTION_DISABLE_NEW_DTAGS (400)
1408 #define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
1409 #define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
1410
1411 static struct option longopts[] =
1412 {
1413 EOF
1414
1415 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1416 cat >>e${EMULATION_NAME}.c <<EOF
1417 /* getopt allows abbreviations, so we do this to stop it from
1418 treating -d/-e as abbreviations for these options. */
1419 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1420 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1421 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
1422 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
1423 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1424 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1425 EOF
1426 fi
1427
1428 if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
1429 cat >>e${EMULATION_NAME}.c <<EOF
1430 $PARSE_AND_LIST_LONGOPTS
1431 EOF
1432 fi
1433
1434 cat >>e${EMULATION_NAME}.c <<EOF
1435 {NULL, no_argument, NULL, 0}
1436 };
1437
1438
1439 static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
1440
1441 static int
1442 gld${EMULATION_NAME}_parse_args (argc, argv)
1443 int argc;
1444 char ** argv;
1445 {
1446 int longind;
1447 int optc;
1448 static int prevoptind = -1;
1449 int prevopterr = opterr;
1450 int wanterror;
1451
1452 if (prevoptind != optind)
1453 opterr = 0;
1454
1455 wanterror = opterr;
1456 prevoptind = optind;
1457
1458 optc = getopt_long_only (argc, argv,
1459 "-${PARSE_AND_LIST_SHORTOPTS}z:", longopts,
1460 &longind);
1461 opterr = prevopterr;
1462
1463 switch (optc)
1464 {
1465 default:
1466 if (wanterror)
1467 xexit (1);
1468 optind = prevoptind;
1469 return 0;
1470
1471 EOF
1472
1473 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1474 cat >>e${EMULATION_NAME}.c <<EOF
1475 case OPTION_DISABLE_NEW_DTAGS:
1476 link_info.new_dtags = false;
1477 break;
1478
1479 case OPTION_ENABLE_NEW_DTAGS:
1480 link_info.new_dtags = true;
1481 break;
1482
1483 case OPTION_GROUP:
1484 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
1485 /* Groups must be self-contained. */
1486 link_info.no_undefined = true;
1487 break;
1488
1489 case 'z':
1490 if (strcmp (optarg, "initfirst") == 0)
1491 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
1492 else if (strcmp (optarg, "interpose") == 0)
1493 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
1494 else if (strcmp (optarg, "loadfltr") == 0)
1495 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
1496 else if (strcmp (optarg, "nodefaultlib") == 0)
1497 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
1498 else if (strcmp (optarg, "nodelete") == 0)
1499 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
1500 else if (strcmp (optarg, "nodlopen") == 0)
1501 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
1502 else if (strcmp (optarg, "nodump") == 0)
1503 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
1504 else if (strcmp (optarg, "now") == 0)
1505 {
1506 link_info.flags |= (bfd_vma) DF_BIND_NOW;
1507 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
1508 }
1509 else if (strcmp (optarg, "origin") == 0)
1510 {
1511 link_info.flags |= (bfd_vma) DF_ORIGIN;
1512 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
1513 }
1514 else if (strcmp (optarg, "defs") == 0)
1515 link_info.no_undefined = true;
1516 else if (strcmp (optarg, "combreloc") == 0)
1517 link_info.combreloc = true;
1518 else if (strcmp (optarg, "nocombreloc") == 0)
1519 link_info.combreloc = false;
1520 /* What about the other Solaris -z options? FIXME. */
1521 break;
1522 EOF
1523 fi
1524
1525 if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
1526 cat >>e${EMULATION_NAME}.c <<EOF
1527 $PARSE_AND_LIST_ARGS_CASES
1528 EOF
1529 fi
1530
1531 cat >>e${EMULATION_NAME}.c <<EOF
1532 }
1533
1534 return 1;
1535 }
1536
1537 EOF
1538 fi
1539
1540 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1541 cat >>e${EMULATION_NAME}.c <<EOF
1542
1543 static void gld${EMULATION_NAME}_list_options PARAMS ((FILE * file));
1544
1545 static void
1546 gld${EMULATION_NAME}_list_options (file)
1547 FILE * file;
1548 {
1549 EOF
1550
1551 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1552 cat >>e${EMULATION_NAME}.c <<EOF
1553 fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
1554 fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
1555 fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
1556 fprintf (file, _(" -z defs\t\tDisallows undefined symbols\n"));
1557 fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
1558 fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
1559 fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
1560 fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
1561 fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
1562 fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));
1563 fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n"));
1564 fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n"));
1565 fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n"));
1566 fprintf (file, _("\t\t\t at runtime\n"));
1567 fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n"));
1568 EOF
1569 fi
1570
1571 if test -n "$PARSE_AND_LIST_OPTIONS" ; then
1572 cat >>e${EMULATION_NAME}.c <<EOF
1573 $PARSE_AND_LIST_OPTIONS
1574 EOF
1575 fi
1576
1577 cat >>e${EMULATION_NAME}.c <<EOF
1578 }
1579 EOF
1580
1581 if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
1582 cat >>e${EMULATION_NAME}.c <<EOF
1583 $PARSE_AND_LIST_EPILOGUE
1584 EOF
1585 fi
1586 fi
1587 else
1588 if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
1589 cat >>e${EMULATION_NAME}.c <<EOF
1590 #define gld${EMULATION_NAME}_parse_args NULL
1591 EOF
1592 fi
1593 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1594 cat >>e${EMULATION_NAME}.c <<EOF
1595 #define gld${EMULATION_NAME}_list_options NULL
1596 EOF
1597 fi
1598 fi
1599
1600 cat >>e${EMULATION_NAME}.c <<EOF
1601
1602 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1603 {
1604 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
1605 ${LDEMUL_SYSLIB-syslib_default},
1606 ${LDEMUL_HLL-hll_default},
1607 ${LDEMUL_AFTER_PARSE-after_parse_default},
1608 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
1609 ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
1610 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
1611 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
1612 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
1613 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
1614 "${EMULATION_NAME}",
1615 "${OUTPUT_FORMAT}",
1616 ${LDEMUL_FINISH-NULL},
1617 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
1618 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
1619 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
1620 ${LDEMUL_SET_SYMBOLS-NULL},
1621 ${LDEMUL_PARSE_ARGS-gld${EMULATION_NAME}_parse_args},
1622 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
1623 ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
1624 ${LDEMUL_RECOGNIZED_FILE-NULL},
1625 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
1626 };
1627 EOF
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