* emultempl/elf32.em (ELF_INTERPRETER_SET_DEFAULT): Use this new
[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 #include "libiberty.h"
36
37 #include <ctype.h>
38
39 #include "bfdlink.h"
40
41 #include "ld.h"
42 #include "ldmain.h"
43 #include "ldmisc.h"
44 #include "ldexp.h"
45 #include "ldlang.h"
46 #include "ldfile.h"
47 #include "ldemul.h"
48 #include "ldgram.h"
49 #include "elf/common.h"
50
51 static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
52 static void gld${EMULATION_NAME}_vercheck
53 PARAMS ((lang_input_statement_type *));
54 static void gld${EMULATION_NAME}_stat_needed
55 PARAMS ((lang_input_statement_type *));
56 static boolean gld${EMULATION_NAME}_try_needed PARAMS ((const char *, int));
57 static boolean gld${EMULATION_NAME}_search_needed
58 PARAMS ((const char *, const char *, int));
59 static void gld${EMULATION_NAME}_check_needed
60 PARAMS ((lang_input_statement_type *));
61 static void gld${EMULATION_NAME}_after_open PARAMS ((void));
62 static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *));
63 static void gld${EMULATION_NAME}_find_statement_assignment
64 PARAMS ((lang_statement_union_type *));
65 static void gld${EMULATION_NAME}_before_allocation PARAMS ((void));
66 static boolean gld${EMULATION_NAME}_open_dynamic_archive
67 PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *));
68 static lang_output_section_statement_type *output_rel_find PARAMS ((void));
69 static boolean gld${EMULATION_NAME}_place_orphan
70 PARAMS ((lang_input_statement_type *, asection *));
71 static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile));
72
73 EOF
74
75 # Import any needed special functions and/or overrides.
76 #
77 if test -n "$EXTRA_EM_FILE" ; then
78 . ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
79 fi
80
81 # Functions in this file can be overridden by setting the LDEMUL_* shell
82 # variables. If the name of the overriding function is the same as is
83 # defined in this file, then don't output this file's version.
84 # If a different overriding name is given then output the standard function
85 # as presumably it is called from the overriding function.
86 #
87 if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
88 cat >>e${EMULATION_NAME}.c <<EOF
89
90 static void
91 gld${EMULATION_NAME}_before_parse ()
92 {
93 ldfile_output_architecture = bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`;
94 config.dynamic_link = ${DYNAMIC_LINK-true};
95 config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo true ; else echo false ; fi`;
96 }
97
98 EOF
99 fi
100
101 cat >>e${EMULATION_NAME}.c <<EOF
102
103 /* These variables are required to pass information back and forth
104 between after_open and check_needed and stat_needed and vercheck. */
105
106 static struct bfd_link_needed_list *global_needed;
107 static struct stat global_stat;
108 static boolean global_found;
109 static struct bfd_link_needed_list *global_vercheck_needed;
110 static boolean global_vercheck_failed;
111
112
113 /* On Linux, it's possible to have different versions of the same
114 shared library linked against different versions of libc. The
115 dynamic linker somehow tags which libc version to use in
116 /etc/ld.so.cache, and, based on the libc that it sees in the
117 executable, chooses which version of the shared library to use.
118
119 We try to do a similar check here by checking whether this shared
120 library needs any other shared libraries which may conflict with
121 libraries we have already included in the link. If it does, we
122 skip it, and try to find another shared library farther on down the
123 link path.
124
125 This is called via lang_for_each_input_file.
126 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
127 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
128 a conflicting version. */
129
130 static void
131 gld${EMULATION_NAME}_vercheck (s)
132 lang_input_statement_type *s;
133 {
134 const char *soname;
135 struct bfd_link_needed_list *l;
136
137 if (global_vercheck_failed)
138 return;
139 if (s->the_bfd == NULL
140 || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
141 return;
142
143 soname = bfd_elf_get_dt_soname (s->the_bfd);
144 if (soname == NULL)
145 soname = basename (bfd_get_filename (s->the_bfd));
146
147 for (l = global_vercheck_needed; l != NULL; l = l->next)
148 {
149 const char *suffix;
150
151 if (strcmp (soname, l->name) == 0)
152 {
153 /* Probably can't happen, but it's an easy check. */
154 continue;
155 }
156
157 if (strchr (l->name, '/') != NULL)
158 continue;
159
160 suffix = strstr (l->name, ".so.");
161 if (suffix == NULL)
162 continue;
163
164 suffix += sizeof ".so." - 1;
165
166 if (strncmp (soname, l->name, suffix - l->name) == 0)
167 {
168 /* Here we know that S is a dynamic object FOO.SO.VER1, and
169 the object we are considering needs a dynamic object
170 FOO.SO.VER2, and VER1 and VER2 are different. This
171 appears to be a version mismatch, so we tell the caller
172 to try a different version of this library. */
173 global_vercheck_failed = true;
174 return;
175 }
176 }
177 }
178
179
180 /* See if an input file matches a DT_NEEDED entry by running stat on
181 the file. */
182
183 static void
184 gld${EMULATION_NAME}_stat_needed (s)
185 lang_input_statement_type *s;
186 {
187 struct stat st;
188 const char *suffix;
189 const char *soname;
190
191 if (global_found)
192 return;
193 if (s->the_bfd == NULL)
194 return;
195
196 if (bfd_stat (s->the_bfd, &st) != 0)
197 {
198 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
199 return;
200 }
201
202 if (st.st_dev == global_stat.st_dev
203 && st.st_ino == global_stat.st_ino)
204 {
205 global_found = true;
206 return;
207 }
208
209 /* We issue a warning if it looks like we are including two
210 different versions of the same shared library. For example,
211 there may be a problem if -lc picks up libc.so.6 but some other
212 shared library has a DT_NEEDED entry of libc.so.5. This is a
213 heuristic test, and it will only work if the name looks like
214 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
215 If we really want to issue warnings about mixing version numbers
216 of shared libraries, we need to find a better way. */
217
218 if (strchr (global_needed->name, '/') != NULL)
219 return;
220 suffix = strstr (global_needed->name, ".so.");
221 if (suffix == NULL)
222 return;
223 suffix += sizeof ".so." - 1;
224
225 soname = bfd_elf_get_dt_soname (s->the_bfd);
226 if (soname == NULL)
227 soname = basename (s->filename);
228
229 if (strncmp (soname, global_needed->name,
230 suffix - global_needed->name) == 0)
231 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
232 global_needed->name, global_needed->by, soname);
233 }
234
235
236 /* This function is called for each possible name for a dynamic object
237 named by a DT_NEEDED entry. The FORCE parameter indicates whether
238 to skip the check for a conflicting version. */
239
240 static boolean
241 gld${EMULATION_NAME}_try_needed (name, force)
242 const char *name;
243 int force;
244 {
245 bfd *abfd;
246 const char *soname;
247
248 abfd = bfd_openr (name, bfd_get_target (output_bfd));
249 if (abfd == NULL)
250 return false;
251 if (! bfd_check_format (abfd, bfd_object))
252 {
253 (void) bfd_close (abfd);
254 return false;
255 }
256 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
257 {
258 (void) bfd_close (abfd);
259 return false;
260 }
261
262 /* Check whether this object would include any conflicting library
263 versions. If FORCE is set, then we skip this check; we use this
264 the second time around, if we couldn't find any compatible
265 instance of the shared library. */
266
267 if (! force)
268 {
269 struct bfd_link_needed_list *needed;
270
271 if (! bfd_elf_get_bfd_needed_list (abfd, &needed))
272 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
273
274 if (needed != NULL)
275 {
276 global_vercheck_needed = needed;
277 global_vercheck_failed = false;
278 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
279 if (global_vercheck_failed)
280 {
281 (void) bfd_close (abfd);
282 /* Return false to force the caller to move on to try
283 another file on the search path. */
284 return false;
285 }
286
287 /* But wait! It gets much worse. On Linux, if a shared
288 library does not use libc at all, we are supposed to skip
289 it the first time around in case we encounter a shared
290 library later on with the same name which does use the
291 version of libc that we want. This is much too horrible
292 to use on any system other than Linux. */
293
294 EOF
295 case ${target} in
296 *-*-linux-gnu*)
297 cat >>e${EMULATION_NAME}.c <<EOF
298 {
299 struct bfd_link_needed_list *l;
300
301 for (l = needed; l != NULL; l = l->next)
302 if (strncmp (l->name, "libc.so", 7) == 0)
303 break;
304 if (l == NULL)
305 {
306 (void) bfd_close (abfd);
307 return false;
308 }
309 }
310
311 EOF
312 ;;
313 esac
314 cat >>e${EMULATION_NAME}.c <<EOF
315 }
316 }
317
318 /* We've found a dynamic object matching the DT_NEEDED entry. */
319
320 /* We have already checked that there is no other input file of the
321 same name. We must now check again that we are not including the
322 same file twice. We need to do this because on many systems
323 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
324 reference libc.so.1. If we have already included libc.so, we
325 don't want to include libc.so.1 if they are the same file, and we
326 can only check that using stat. */
327
328 if (bfd_stat (abfd, &global_stat) != 0)
329 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
330
331 /* First strip off everything before the last '/'. */
332 soname = basename (abfd->filename);
333
334 if (trace_file_tries)
335 info_msg (_("found %s at %s\n"), soname, name);
336
337 global_found = false;
338 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
339 if (global_found)
340 {
341 /* Return true to indicate that we found the file, even though
342 we aren't going to do anything with it. */
343 return true;
344 }
345
346 /* Tell the ELF backend that we don't want the output file to have a
347 DT_NEEDED entry for this file. */
348 bfd_elf_set_dt_needed_name (abfd, "");
349
350 /* Tell the ELF backend that the output file needs a DT_NEEDED
351 entry for this file if it is used to resolve the reference in
352 a regular object. */
353 bfd_elf_set_dt_needed_soname (abfd, soname);
354
355 /* Add this file into the symbol table. */
356 if (! bfd_link_add_symbols (abfd, &link_info))
357 einfo ("%F%B: could not read symbols: %E\n", abfd);
358
359 return true;
360 }
361
362
363 /* Search for a needed file in a path. */
364
365 static boolean
366 gld${EMULATION_NAME}_search_needed (path, name, force)
367 const char *path;
368 const char *name;
369 int force;
370 {
371 const char *s;
372 size_t len;
373
374 if (name[0] == '/')
375 return gld${EMULATION_NAME}_try_needed (name, force);
376
377 if (path == NULL || *path == '\0')
378 return false;
379 len = strlen (name);
380 while (1)
381 {
382 char *filename, *sset;
383
384 s = strchr (path, ':');
385 if (s == NULL)
386 s = path + strlen (path);
387
388 filename = (char *) xmalloc (s - path + len + 2);
389 if (s == path)
390 sset = filename;
391 else
392 {
393 memcpy (filename, path, s - path);
394 filename[s - path] = '/';
395 sset = filename + (s - path) + 1;
396 }
397 strcpy (sset, name);
398
399 if (gld${EMULATION_NAME}_try_needed (filename, force))
400 return true;
401
402 free (filename);
403
404 if (*s == '\0')
405 break;
406 path = s + 1;
407 }
408
409 return false;
410 }
411
412 EOF
413 if [ "x${host}" = "x${target}" ] ; then
414 case " ${EMULATION_LIBPATH} " in
415 *" ${EMULATION_NAME} "*)
416 case ${target} in
417 *-*-linux-gnu*)
418 cat >>e${EMULATION_NAME}.c <<EOF
419
420 /* For a native linker, check the file /etc/ld.so.conf for directories
421 in which we may find shared libraries. /etc/ld.so.conf is really
422 only meaningful on Linux. */
423
424 static boolean gld${EMULATION_NAME}_check_ld_so_conf
425 PARAMS ((const char *, int));
426
427 static boolean
428 gld${EMULATION_NAME}_check_ld_so_conf (name, force)
429 const char *name;
430 int force;
431 {
432 static boolean initialized;
433 static char *ld_so_conf;
434
435 if (! initialized)
436 {
437 FILE *f;
438
439 f = fopen ("/etc/ld.so.conf", FOPEN_RT);
440 if (f != NULL)
441 {
442 char *b;
443 size_t len, alloc;
444 int c;
445
446 len = 0;
447 alloc = 100;
448 b = (char *) xmalloc (alloc);
449
450 while ((c = getc (f)) != EOF)
451 {
452 if (len + 1 >= alloc)
453 {
454 alloc *= 2;
455 b = (char *) xrealloc (b, alloc);
456 }
457 if (c != ':'
458 && c != ' '
459 && c != '\t'
460 && c != '\n'
461 && c != ',')
462 {
463 b[len] = c;
464 ++len;
465 }
466 else
467 {
468 if (len > 0 && b[len - 1] != ':')
469 {
470 b[len] = ':';
471 ++len;
472 }
473 }
474 }
475
476 if (len > 0 && b[len - 1] == ':')
477 --len;
478
479 if (len > 0)
480 b[len] = '\0';
481 else
482 {
483 free (b);
484 b = NULL;
485 }
486
487 fclose (f);
488
489 ld_so_conf = b;
490 }
491
492 initialized = true;
493 }
494
495 if (ld_so_conf == NULL)
496 return false;
497
498 return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force);
499 }
500
501 EOF
502 # Linux
503 ;;
504 esac
505 esac
506 fi
507 cat >>e${EMULATION_NAME}.c <<EOF
508
509 /* See if an input file matches a DT_NEEDED entry by name. */
510
511 static void
512 gld${EMULATION_NAME}_check_needed (s)
513 lang_input_statement_type *s;
514 {
515 if (global_found)
516 return;
517
518 if (s->filename != NULL)
519 {
520 const char *f;
521
522 if (strcmp (s->filename, global_needed->name) == 0)
523 {
524 global_found = true;
525 return;
526 }
527
528 if (s->search_dirs_flag)
529 {
530 f = strrchr (s->filename, '/');
531 if (f != NULL
532 && strcmp (f + 1, global_needed->name) == 0)
533 {
534 global_found = true;
535 return;
536 }
537 }
538 }
539
540 if (s->the_bfd != NULL)
541 {
542 const char *soname;
543
544 soname = bfd_elf_get_dt_soname (s->the_bfd);
545 if (soname != NULL
546 && strcmp (soname, global_needed->name) == 0)
547 {
548 global_found = true;
549 return;
550 }
551 }
552 }
553
554 EOF
555
556 if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
557 cat >>e${EMULATION_NAME}.c <<EOF
558
559 /* This is called after all the input files have been opened. */
560
561 static void
562 gld${EMULATION_NAME}_after_open ()
563 {
564 struct bfd_link_needed_list *needed, *l;
565
566 /* We only need to worry about this when doing a final link. */
567 if (link_info.relocateable || link_info.shared)
568 return;
569
570 /* Get the list of files which appear in DT_NEEDED entries in
571 dynamic objects included in the link (often there will be none).
572 For each such file, we want to track down the corresponding
573 library, and include the symbol table in the link. This is what
574 the runtime dynamic linker will do. Tracking the files down here
575 permits one dynamic object to include another without requiring
576 special action by the person doing the link. Note that the
577 needed list can actually grow while we are stepping through this
578 loop. */
579 needed = bfd_elf_get_needed_list (output_bfd, &link_info);
580 for (l = needed; l != NULL; l = l->next)
581 {
582 struct bfd_link_needed_list *ll;
583 int force;
584
585 /* If we've already seen this file, skip it. */
586 for (ll = needed; ll != l; ll = ll->next)
587 if (strcmp (ll->name, l->name) == 0)
588 break;
589 if (ll != l)
590 continue;
591
592 /* See if this file was included in the link explicitly. */
593 global_needed = l;
594 global_found = false;
595 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
596 if (global_found)
597 continue;
598
599 if (trace_file_tries)
600 info_msg (_("%s needed by %B\n"), l->name, l->by);
601
602 /* We need to find this file and include the symbol table. We
603 want to search for the file in the same way that the dynamic
604 linker will search. That means that we want to use
605 rpath_link, rpath, then the environment variable
606 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
607 entries (native only), then the linker script LIB_SEARCH_DIRS.
608 We do not search using the -L arguments.
609
610 We search twice. The first time, we skip objects which may
611 introduce version mismatches. The second time, we force
612 their use. See gld${EMULATION_NAME}_vercheck comment. */
613 for (force = 0; force < 2; force++)
614 {
615 size_t len;
616 search_dirs_type *search;
617 EOF
618 if [ "x${host}" = "x${target}" ] ; then
619 case " ${EMULATION_LIBPATH} " in
620 *" ${EMULATION_NAME} "*)
621 cat >>e${EMULATION_NAME}.c <<EOF
622 const char *lib_path;
623 struct bfd_link_needed_list *rp;
624 int found;
625 EOF
626 ;;
627 esac
628 fi
629 cat >>e${EMULATION_NAME}.c <<EOF
630
631 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
632 l->name, force))
633 break;
634 EOF
635 if [ "x${host}" = "x${target}" ] ; then
636 case " ${EMULATION_LIBPATH} " in
637 *" ${EMULATION_NAME} "*)
638 cat >>e${EMULATION_NAME}.c <<EOF
639 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
640 l->name, force))
641 break;
642 if (command_line.rpath_link == NULL
643 && command_line.rpath == NULL)
644 {
645 lib_path = (const char *) getenv ("LD_RUN_PATH");
646 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name,
647 force))
648 break;
649 }
650 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
651 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force))
652 break;
653
654 found = 0;
655 rp = bfd_elf_get_runpath_list (output_bfd, &link_info);
656 for (; !found && rp != NULL; rp = rp->next)
657 {
658 found = (rp->by == l->by
659 && gld${EMULATION_NAME}_search_needed (rp->name,
660 l->name,
661 force));
662 }
663 if (found)
664 break;
665
666 EOF
667 ;;
668 esac
669 fi
670 cat >>e${EMULATION_NAME}.c <<EOF
671 len = strlen (l->name);
672 for (search = search_head; search != NULL; search = search->next)
673 {
674 char *filename;
675
676 if (search->cmdline)
677 continue;
678 filename = (char *) xmalloc (strlen (search->name) + len + 2);
679 sprintf (filename, "%s/%s", search->name, l->name);
680 if (gld${EMULATION_NAME}_try_needed (filename, force))
681 break;
682 free (filename);
683 }
684 if (search != NULL)
685 break;
686 EOF
687 if [ "x${host}" = "x${target}" ] ; then
688 case " ${EMULATION_LIBPATH} " in
689 *" ${EMULATION_NAME} "*)
690 case ${target} in
691 *-*-linux-gnu*)
692 cat >>e${EMULATION_NAME}.c <<EOF
693 if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
694 break;
695 EOF
696 # Linux
697 ;;
698 esac
699 ;;
700 esac
701 fi
702 cat >>e${EMULATION_NAME}.c <<EOF
703 }
704
705 if (force < 2)
706 continue;
707
708 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
709 l->name, l->by);
710 }
711 }
712
713 EOF
714 fi
715
716 cat >>e${EMULATION_NAME}.c <<EOF
717
718 /* Look through an expression for an assignment statement. */
719
720 static void
721 gld${EMULATION_NAME}_find_exp_assignment (exp)
722 etree_type *exp;
723 {
724 struct bfd_link_hash_entry *h;
725
726 switch (exp->type.node_class)
727 {
728 case etree_provide:
729 h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
730 false, false, false);
731 if (h == NULL)
732 break;
733
734 /* We call record_link_assignment even if the symbol is defined.
735 This is because if it is defined by a dynamic object, we
736 actually want to use the value defined by the linker script,
737 not the value from the dynamic object (because we are setting
738 symbols like etext). If the symbol is defined by a regular
739 object, then, as it happens, calling record_link_assignment
740 will do no harm. */
741
742 /* Fall through. */
743 case etree_assign:
744 if (strcmp (exp->assign.dst, ".") != 0)
745 {
746 if (! (bfd_elf${ELFSIZE}_record_link_assignment
747 (output_bfd, &link_info, exp->assign.dst,
748 exp->type.node_class == etree_provide ? true : false)))
749 einfo ("%P%F: failed to record assignment to %s: %E\n",
750 exp->assign.dst);
751 }
752 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
753 break;
754
755 case etree_binary:
756 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
757 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
758 break;
759
760 case etree_trinary:
761 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
762 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
763 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
764 break;
765
766 case etree_unary:
767 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
768 break;
769
770 default:
771 break;
772 }
773 }
774
775
776 /* This is called by the before_allocation routine via
777 lang_for_each_statement. It locates any assignment statements, and
778 tells the ELF backend about them, in case they are assignments to
779 symbols which are referred to by dynamic objects. */
780
781 static void
782 gld${EMULATION_NAME}_find_statement_assignment (s)
783 lang_statement_union_type *s;
784 {
785 if (s->header.type == lang_assignment_statement_enum)
786 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
787 }
788
789 EOF
790
791 if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
792 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
793 ELF_INTERPRETER_SET_DEFAULT="
794 if (sinterp != NULL)
795 {
796 sinterp->contents = ${ELF_INTERPRETER_NAME};
797 sinterp->_raw_size = strlen (sinterp->contents) + 1;
798 }
799
800 "
801 else
802 ELF_INTERPRETER_SET_DEFAULT=
803 fi
804 cat >>e${EMULATION_NAME}.c <<EOF
805
806 /* This is called after the sections have been attached to output
807 sections, but before any sizes or addresses have been set. */
808
809 static void
810 gld${EMULATION_NAME}_before_allocation ()
811 {
812 const char *rpath;
813 asection *sinterp;
814
815 /* If we are going to make any variable assignments, we need to let
816 the ELF backend know about them in case the variables are
817 referred to by dynamic objects. */
818 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
819
820 /* Let the ELF backend work out the sizes of any sections required
821 by dynamic linking. */
822 rpath = command_line.rpath;
823 if (rpath == NULL)
824 rpath = (const char *) getenv ("LD_RUN_PATH");
825 if (! (bfd_elf${ELFSIZE}_size_dynamic_sections
826 (output_bfd, command_line.soname, rpath,
827 command_line.export_dynamic, command_line.filter_shlib,
828 (const char * const *) command_line.auxiliary_filters,
829 &link_info, &sinterp, lang_elf_version_info)))
830 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
831 ${ELF_INTERPRETER_SET_DEFAULT}
832 /* Let the user override the dynamic linker we are using. */
833 if (command_line.interpreter != NULL
834 && sinterp != NULL)
835 {
836 sinterp->contents = (bfd_byte *) command_line.interpreter;
837 sinterp->_raw_size = strlen (command_line.interpreter) + 1;
838 }
839
840 /* Look for any sections named .gnu.warning. As a GNU extensions,
841 we treat such sections as containing warning messages. We print
842 out the warning message, and then zero out the section size so
843 that it does not get copied into the output file. */
844
845 {
846 LANG_FOR_EACH_INPUT_STATEMENT (is)
847 {
848 asection *s;
849 bfd_size_type sz;
850 char *msg;
851 boolean ret;
852
853 if (is->just_syms_flag)
854 continue;
855
856 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
857 if (s == NULL)
858 continue;
859
860 sz = bfd_section_size (is->the_bfd, s);
861 msg = xmalloc ((size_t) sz + 1);
862 if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz))
863 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
864 is->the_bfd);
865 msg[sz] = '\0';
866 ret = link_info.callbacks->warning (&link_info, msg,
867 (const char *) NULL,
868 is->the_bfd, (asection *) NULL,
869 (bfd_vma) 0);
870 ASSERT (ret);
871 free (msg);
872
873 /* Clobber the section size, so that we don't waste copying the
874 warning into the output file. */
875 s->_raw_size = 0;
876 }
877 }
878 }
879
880 EOF
881 fi
882
883 if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
884 cat >>e${EMULATION_NAME}.c <<EOF
885
886 /* Try to open a dynamic archive. This is where we know that ELF
887 dynamic libraries have an extension of .so (or .sl on oddball systems
888 like hpux). */
889
890 static boolean
891 gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
892 const char *arch;
893 search_dirs_type *search;
894 lang_input_statement_type *entry;
895 {
896 const char *filename;
897 char *string;
898
899 if (! entry->is_archive)
900 return false;
901
902 filename = entry->filename;
903
904 /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
905 is defined, but it does not seem worth the headache to optimize
906 away those two bytes of space. */
907 string = (char *) xmalloc (strlen (search->name)
908 + strlen (filename)
909 + strlen (arch)
910 #ifdef EXTRA_SHLIB_EXTENSION
911 + strlen (EXTRA_SHLIB_EXTENSION)
912 #endif
913 + sizeof "/lib.so");
914
915 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
916
917 #ifdef EXTRA_SHLIB_EXTENSION
918 /* Try the .so extension first. If that fails build a new filename
919 using EXTRA_SHLIB_EXTENSION. */
920 if (! ldfile_try_open_bfd (string, entry))
921 sprintf (string, "%s/lib%s%s%s", search->name,
922 filename, arch, EXTRA_SHLIB_EXTENSION);
923 #endif
924
925 if (! ldfile_try_open_bfd (string, entry))
926 {
927 free (string);
928 return false;
929 }
930
931 entry->filename = string;
932
933 /* We have found a dynamic object to include in the link. The ELF
934 backend linker will create a DT_NEEDED entry in the .dynamic
935 section naming this file. If this file includes a DT_SONAME
936 entry, it will be used. Otherwise, the ELF linker will just use
937 the name of the file. For an archive found by searching, like
938 this one, the DT_NEEDED entry should consist of just the name of
939 the file, without the path information used to find it. Note
940 that we only need to do this if we have a dynamic object; an
941 archive will never be referenced by a DT_NEEDED entry.
942
943 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
944 very pretty. I haven't been able to think of anything that is
945 pretty, though. */
946 if (bfd_check_format (entry->the_bfd, bfd_object)
947 && (entry->the_bfd->flags & DYNAMIC) != 0)
948 {
949 ASSERT (entry->is_archive && entry->search_dirs_flag);
950
951 /* Rather than duplicating the logic above. Just use the
952 filename we recorded earlier. */
953
954 filename = xstrdup (basename (entry->filename));
955 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
956 }
957
958 return true;
959 }
960
961 EOF
962 fi
963 cat >>e${EMULATION_NAME}.c <<EOF
964
965 /* A variant of lang_output_section_find. Used by place_orphan. */
966
967 static lang_output_section_statement_type *
968 output_rel_find ()
969 {
970 lang_statement_union_type *u;
971 lang_output_section_statement_type *lookup;
972
973 for (u = lang_output_section_statement.head;
974 u != (lang_statement_union_type *) NULL;
975 u = lookup->next)
976 {
977 lookup = &u->output_section_statement;
978 if (strncmp (".rel", lookup->name, 4) == 0
979 && lookup->bfd_section != NULL
980 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
981 {
982 return lookup;
983 }
984 }
985 return (lang_output_section_statement_type *) NULL;
986 }
987
988 EOF
989
990 if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
991 cat >>e${EMULATION_NAME}.c <<EOF
992
993 /* Place an orphan section. We use this to put random SHF_ALLOC
994 sections in the right segment. */
995
996 struct orphan_save {
997 lang_output_section_statement_type *os;
998 asection **section;
999 lang_statement_union_type **stmt;
1000 };
1001
1002 static boolean
1003 gld${EMULATION_NAME}_place_orphan (file, s)
1004 lang_input_statement_type *file;
1005 asection *s;
1006 {
1007 static struct orphan_save hold_text;
1008 static struct orphan_save hold_rodata;
1009 static struct orphan_save hold_data;
1010 static struct orphan_save hold_bss;
1011 static struct orphan_save hold_rel;
1012 static struct orphan_save hold_interp;
1013 static struct orphan_save hold_sdata;
1014 static int count = 1;
1015 struct orphan_save *place;
1016 lang_statement_list_type *old;
1017 lang_statement_list_type add;
1018 etree_type *address;
1019 const char *secname;
1020 const char *outsecname;
1021 const char *ps = NULL;
1022 lang_output_section_statement_type *os;
1023
1024 secname = bfd_get_section_name (s->owner, s);
1025
1026 if (! config.unique_orphan_sections && ! unique_section_p (secname))
1027 {
1028 /* Look through the script to see where to place this section. */
1029 os = lang_output_section_find (secname);
1030
1031 if (os != NULL
1032 && os->bfd_section != NULL
1033 && ((s->flags ^ os->bfd_section->flags)
1034 & (SEC_LOAD | SEC_ALLOC)) == 0)
1035 {
1036 /* We have already placed a section with this name. */
1037 wild_doit (&os->children, s, os, file);
1038 return true;
1039 }
1040 }
1041
1042 if (hold_text.os == NULL)
1043 hold_text.os = lang_output_section_find (".text");
1044
1045 /* If this is a final link, then always put .gnu.warning.SYMBOL
1046 sections into the .text section to get them out of the way. */
1047 if (! link_info.shared
1048 && ! link_info.relocateable
1049 && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
1050 && hold_text.os != NULL)
1051 {
1052 wild_doit (&hold_text.os->children, s, hold_text.os, file);
1053 return true;
1054 }
1055
1056 /* Decide which segment the section should go in based on the
1057 section name and section flags. We put loadable .note sections
1058 right after the .interp section, so that the PT_NOTE segment is
1059 stored right after the program headers where the OS can read it
1060 in the first page. */
1061 #define HAVE_SECTION(hold, name) \
1062 (hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
1063
1064 if (s->flags & SEC_EXCLUDE)
1065 return false;
1066
1067 place = NULL;
1068 if ((s->flags & SEC_ALLOC) == 0)
1069 ;
1070 else if ((s->flags & SEC_LOAD) != 0
1071 && strncmp (secname, ".note", 5) == 0
1072 && HAVE_SECTION (hold_interp, ".interp"))
1073 place = &hold_interp;
1074 else if ((s->flags & SEC_HAS_CONTENTS) == 0
1075 && HAVE_SECTION (hold_bss, ".bss"))
1076 place = &hold_bss;
1077 else if ((s->flags & SEC_SMALL_DATA) != 0
1078 && HAVE_SECTION (hold_sdata, ".sdata"))
1079 place = &hold_sdata;
1080 else if ((s->flags & SEC_READONLY) == 0
1081 && HAVE_SECTION (hold_data, ".data"))
1082 place = &hold_data;
1083 else if (strncmp (secname, ".rel", 4) == 0
1084 && (hold_rel.os != NULL
1085 || (hold_rel.os = output_rel_find ()) != NULL))
1086 place = &hold_rel;
1087 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == SEC_READONLY
1088 && HAVE_SECTION (hold_rodata, ".rodata"))
1089 place = &hold_rodata;
1090 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == (SEC_CODE | SEC_READONLY)
1091 && hold_text.os != NULL)
1092 place = &hold_text;
1093
1094 #undef HAVE_SECTION
1095
1096 /* Choose a unique name for the section. This will be needed if the
1097 same section name appears in the input file with different
1098 loadable or allocatable characteristics. */
1099 outsecname = secname;
1100 if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
1101 {
1102 outsecname = bfd_get_unique_section_name (output_bfd,
1103 outsecname,
1104 &count);
1105 if (outsecname == NULL)
1106 einfo ("%F%P: place_orphan failed: %E\n");
1107 }
1108
1109 /* Start building a list of statements for this section.
1110 First save the current statement pointer. */
1111 old = stat_ptr;
1112
1113 /* If we have found an appropriate place for the output section
1114 statements for this orphan, add them to our own private list,
1115 inserting them later into the global statement list. */
1116 if (place != NULL)
1117 {
1118 stat_ptr = &add;
1119 lang_list_init (stat_ptr);
1120 }
1121
1122 if (config.build_constructors)
1123 {
1124 /* If the name of the section is representable in C, then create
1125 symbols to mark the start and the end of the section. */
1126 for (ps = outsecname; *ps != '\0'; ps++)
1127 if (! isalnum ((unsigned char) *ps) && *ps != '_')
1128 break;
1129 if (*ps == '\0')
1130 {
1131 char *symname;
1132 etree_type *e_align;
1133
1134 symname = (char *) xmalloc (ps - outsecname + sizeof "__start_");
1135 sprintf (symname, "__start_%s", outsecname);
1136 e_align = exp_unop (ALIGN_K,
1137 exp_intop ((bfd_vma) 1 << s->alignment_power));
1138 lang_add_assignment (exp_assop ('=', symname, e_align));
1139 }
1140 }
1141
1142 if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
1143 address = exp_intop ((bfd_vma) 0);
1144 else
1145 address = NULL;
1146
1147 os = lang_enter_output_section_statement (outsecname, address, 0,
1148 (bfd_vma) 0,
1149 (etree_type *) NULL,
1150 (etree_type *) NULL,
1151 (etree_type *) NULL);
1152
1153 wild_doit (&os->children, s, os, file);
1154
1155 lang_leave_output_section_statement
1156 ((bfd_vma) 0, "*default*",
1157 (struct lang_output_section_phdr_list *) NULL, "*default*");
1158
1159 if (config.build_constructors && *ps == '\0')
1160 {
1161 char *symname;
1162
1163 /* lang_leave_ouput_section_statement resets stat_ptr. Put
1164 stat_ptr back where we want it. */
1165 if (place != NULL)
1166 stat_ptr = &add;
1167
1168 symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_");
1169 sprintf (symname, "__stop_%s", outsecname);
1170 lang_add_assignment (exp_assop ('=', symname,
1171 exp_nameop (NAME, ".")));
1172 }
1173
1174 /* Restore the global list pointer. */
1175 stat_ptr = old;
1176
1177 if (place != NULL)
1178 {
1179 asection *snew, **pps;
1180
1181 snew = os->bfd_section;
1182 if (place->section != NULL
1183 || (place->os->bfd_section != NULL
1184 && place->os->bfd_section != snew))
1185 {
1186 /* Shuffle the section to make the output file look neater.
1187 This is really only cosmetic. */
1188 if (place->section == NULL)
1189 {
1190 #if 0
1191 /* Finding the end of the list is a little tricky. We
1192 make a wild stab at it by comparing section flags. */
1193 flagword first_flags = place->os->bfd_section->flags;
1194 for (pps = &place->os->bfd_section->next;
1195 *pps != NULL && (*pps)->flags == first_flags;
1196 pps = &(*pps)->next)
1197 ;
1198 place->section = pps;
1199 #else
1200 /* Put orphans after the first section on the list. */
1201 place->section = &place->os->bfd_section->next;
1202 #endif
1203 }
1204
1205 /* Unlink the section. */
1206 for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
1207 ;
1208 *pps = snew->next;
1209
1210 /* Now tack it on to the "place->os" section list. */
1211 snew->next = *place->section;
1212 *place->section = snew;
1213 }
1214 place->section = &snew->next; /* Save the end of this list. */
1215
1216 if (add.head != NULL)
1217 {
1218 /* We try to put the output statements in some sort of
1219 reasonable order here, because they determine the final
1220 load addresses of the orphan sections. */
1221 if (place->stmt == NULL)
1222 {
1223 /* Put the new statement list right at the head. */
1224 *add.tail = place->os->header.next;
1225 place->os->header.next = add.head;
1226 }
1227 else
1228 {
1229 /* Put it after the last orphan statement we added. */
1230 *add.tail = *place->stmt;
1231 *place->stmt = add.head;
1232 }
1233
1234 /* Fix the global list pointer if we happened to tack our
1235 new list at the tail. */
1236 if (*old->tail == add.head)
1237 old->tail = add.tail;
1238
1239 /* Save the end of this list. */
1240 place->stmt = add.tail;
1241 }
1242 }
1243
1244 return true;
1245 }
1246
1247 EOF
1248 fi
1249
1250 if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
1251 cat >>e${EMULATION_NAME}.c <<EOF
1252
1253 static char *
1254 gld${EMULATION_NAME}_get_script (isfile)
1255 int *isfile;
1256 EOF
1257
1258 if test -n "$COMPILE_IN"
1259 then
1260 # Scripts compiled in.
1261
1262 # sed commands to quote an ld script as a C string.
1263 sc="-f stringify.sed"
1264
1265 cat >>e${EMULATION_NAME}.c <<EOF
1266 {
1267 *isfile = 0;
1268
1269 if (link_info.relocateable == true && config.build_constructors == true)
1270 return
1271 EOF
1272 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1273 echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
1274 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1275 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1276 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1277 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1278 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1279
1280 if test -n "$GENERATE_SHLIB_SCRIPT" ; then
1281 echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
1282 sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
1283 fi
1284
1285 echo ' ; else return' >> e${EMULATION_NAME}.c
1286 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1287 echo '; }' >> e${EMULATION_NAME}.c
1288
1289 else
1290 # Scripts read from the filesystem.
1291
1292 cat >>e${EMULATION_NAME}.c <<EOF
1293 {
1294 *isfile = 1;
1295
1296 if (link_info.relocateable == true && config.build_constructors == true)
1297 return "ldscripts/${EMULATION_NAME}.xu";
1298 else if (link_info.relocateable == true)
1299 return "ldscripts/${EMULATION_NAME}.xr";
1300 else if (!config.text_read_only)
1301 return "ldscripts/${EMULATION_NAME}.xbn";
1302 else if (!config.magic_demand_paged)
1303 return "ldscripts/${EMULATION_NAME}.xn";
1304 else if (link_info.shared)
1305 return "ldscripts/${EMULATION_NAME}.xs";
1306 else
1307 return "ldscripts/${EMULATION_NAME}.x";
1308 }
1309
1310 EOF
1311 fi
1312 fi
1313
1314 if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1315
1316 if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
1317
1318 if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
1319 cat >>e${EMULATION_NAME}.c <<EOF
1320 $PARSE_AND_LIST_PROLOGUE
1321 EOF
1322 fi
1323
1324 cat >>e${EMULATION_NAME}.c <<EOF
1325
1326 #include "getopt.h"
1327
1328 #define OPTION_DISABLE_NEW_DTAGS (400)
1329 #define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
1330 #define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
1331
1332 static struct option longopts[] =
1333 {
1334 EOF
1335
1336 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1337 cat >>e${EMULATION_NAME}.c <<EOF
1338 /* getopt allows abbreviations, so we do this to stop it from
1339 treating -d/-e as abbreviations for these options. */
1340 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1341 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1342 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
1343 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
1344 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1345 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1346 EOF
1347 fi
1348
1349 if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
1350 cat >>e${EMULATION_NAME}.c <<EOF
1351 $PARSE_AND_LIST_LONGOPTS
1352 EOF
1353 fi
1354
1355 cat >>e${EMULATION_NAME}.c <<EOF
1356 {NULL, no_argument, NULL, 0}
1357 };
1358
1359
1360 static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
1361
1362 static int
1363 gld${EMULATION_NAME}_parse_args (argc, argv)
1364 int argc;
1365 char ** argv;
1366 {
1367 int longind;
1368 int optc;
1369 static int prevoptind = -1;
1370 int prevopterr = opterr;
1371 int wanterror;
1372
1373 if (prevoptind != optind)
1374 opterr = 0;
1375
1376 wanterror = opterr;
1377 prevoptind = optind;
1378
1379 optc = getopt_long_only (argc, argv,
1380 "-${PARSE_AND_LIST_SHORTOPTS}z:", longopts,
1381 &longind);
1382 opterr = prevopterr;
1383
1384 switch (optc)
1385 {
1386 default:
1387 if (wanterror)
1388 xexit (1);
1389 optind = prevoptind;
1390 return 0;
1391
1392 EOF
1393
1394 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1395 cat >>e${EMULATION_NAME}.c <<EOF
1396 case OPTION_DISABLE_NEW_DTAGS:
1397 link_info.new_dtags = false;
1398 break;
1399
1400 case OPTION_ENABLE_NEW_DTAGS:
1401 link_info.new_dtags = true;
1402 break;
1403
1404 case OPTION_GROUP:
1405 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
1406 /* Groups must be self-contained. */
1407 link_info.no_undefined = true;
1408 break;
1409
1410 case 'z':
1411 if (strcmp (optarg, "initfirst") == 0)
1412 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
1413 else if (strcmp (optarg, "interpose") == 0)
1414 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
1415 else if (strcmp (optarg, "loadfltr") == 0)
1416 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
1417 else if (strcmp (optarg, "nodefaultlib") == 0)
1418 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
1419 else if (strcmp (optarg, "nodelete") == 0)
1420 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
1421 else if (strcmp (optarg, "nodlopen") == 0)
1422 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
1423 else if (strcmp (optarg, "nodump") == 0)
1424 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
1425 else if (strcmp (optarg, "now") == 0)
1426 {
1427 link_info.flags |= (bfd_vma) DF_BIND_NOW;
1428 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
1429 }
1430 else if (strcmp (optarg, "origin") == 0)
1431 {
1432 link_info.flags |= (bfd_vma) DF_ORIGIN;
1433 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
1434 }
1435 else if (strcmp (optarg, "defs") == 0)
1436 link_info.no_undefined = true;
1437 /* What about the other Solaris -z options? FIXME. */
1438 break;
1439 EOF
1440 fi
1441
1442 if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
1443 cat >>e${EMULATION_NAME}.c <<EOF
1444 $PARSE_AND_LIST_ARGS_CASES
1445 EOF
1446 fi
1447
1448 cat >>e${EMULATION_NAME}.c <<EOF
1449 }
1450
1451 return 1;
1452 }
1453
1454 EOF
1455 fi
1456
1457 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1458 cat >>e${EMULATION_NAME}.c <<EOF
1459
1460 static void gld${EMULATION_NAME}_list_options PARAMS ((FILE * file));
1461
1462 static void
1463 gld${EMULATION_NAME}_list_options (file)
1464 FILE * file;
1465 {
1466 EOF
1467
1468 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1469 cat >>e${EMULATION_NAME}.c <<EOF
1470 fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
1471 fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
1472 fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
1473 fprintf (file, _(" -z defs\t\tDisallows undefined symbols\n"));
1474 fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
1475 fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
1476 fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
1477 fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
1478 fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
1479 fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));
1480 fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n"));
1481 fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n"));
1482 fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n"));
1483 fprintf (file, _("\t\t\t at runtime\n"));
1484 fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n"));
1485 EOF
1486 fi
1487
1488 if test -n "$PARSE_AND_LIST_OPTIONS" ; then
1489 cat >>e${EMULATION_NAME}.c <<EOF
1490 $PARSE_AND_LIST_OPTIONS
1491 EOF
1492 fi
1493
1494 cat >>e${EMULATION_NAME}.c <<EOF
1495 }
1496 EOF
1497
1498 if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
1499 cat >>e${EMULATION_NAME}.c <<EOF
1500 $PARSE_AND_LIST_EPILOGUE
1501 EOF
1502 fi
1503 fi
1504 else
1505 if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
1506 cat >>e${EMULATION_NAME}.c <<EOF
1507 #define gld${EMULATION_NAME}_parse_args NULL
1508 EOF
1509 fi
1510 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1511 cat >>e${EMULATION_NAME}.c <<EOF
1512 #define gld${EMULATION_NAME}_list_options NULL
1513 EOF
1514 fi
1515 fi
1516
1517 cat >>e${EMULATION_NAME}.c <<EOF
1518
1519 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1520 {
1521 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
1522 ${LDEMUL_SYSLIB-syslib_default},
1523 ${LDEMUL_HLL-hll_default},
1524 ${LDEMUL_AFTER_PARSE-after_parse_default},
1525 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
1526 ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
1527 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
1528 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
1529 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
1530 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
1531 "${EMULATION_NAME}",
1532 "${OUTPUT_FORMAT}",
1533 ${LDEMUL_FINISH-NULL},
1534 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
1535 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
1536 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
1537 ${LDEMUL_SET_SYMBOLS-NULL},
1538 ${LDEMUL_PARSE_ARGS-gld${EMULATION_NAME}_parse_args},
1539 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
1540 ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
1541 ${LDEMUL_RECOGNIZED_FILE-NULL},
1542 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
1543 };
1544 EOF
This page took 0.130838 seconds and 5 git commands to generate.