* emulparams/elf32_dlx.sh (TARGET_PAGE_SIZE): Set to 1.
[deliverable/binutils-gdb.git] / ld / emultempl / elf32.em
... / ...
CommitLineData
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.
5test -z "${ELFSIZE}" && ELFSIZE=32
6if [ -z "$MACHINE" ]; then
7 OUTPUT_ARCH=${ARCH}
8else
9 OUTPUT_ARCH=${ARCH}:${MACHINE}
10fi
11cat >e${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 ${EMULATION_NAME}
15 Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
16 2002 Free Software Foundation, Inc.
17 Written by Steve Chamberlain <sac@cygnus.com>
18 ELF support by Ian Lance Taylor <ian@cygnus.com>
19
20This file is part of GLD, the Gnu Linker.
21
22This program is free software; you can redistribute it and/or modify
23it under the terms of the GNU General Public License as published by
24the Free Software Foundation; either version 2 of the License, or
25(at your option) any later version.
26
27This program is distributed in the hope that it will be useful,
28but WITHOUT ANY WARRANTY; without even the implied warranty of
29MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30GNU General Public License for more details.
31
32You should have received a copy of the GNU General Public License
33along with this program; if not, write to the Free Software
34Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
35
36#define TARGET_IS_${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
55static void gld${EMULATION_NAME}_before_parse
56 PARAMS ((void));
57static void gld${EMULATION_NAME}_vercheck
58 PARAMS ((lang_input_statement_type *));
59static void gld${EMULATION_NAME}_stat_needed
60 PARAMS ((lang_input_statement_type *));
61static boolean gld${EMULATION_NAME}_try_needed
62 PARAMS ((const char *, int));
63static boolean gld${EMULATION_NAME}_search_needed
64 PARAMS ((const char *, const char *, int));
65static void gld${EMULATION_NAME}_check_needed
66 PARAMS ((lang_input_statement_type *));
67static void gld${EMULATION_NAME}_after_open
68 PARAMS ((void));
69static void gld${EMULATION_NAME}_find_exp_assignment
70 PARAMS ((etree_type *));
71static void gld${EMULATION_NAME}_find_statement_assignment
72 PARAMS ((lang_statement_union_type *));
73static void gld${EMULATION_NAME}_before_allocation
74 PARAMS ((void));
75static boolean gld${EMULATION_NAME}_open_dynamic_archive
76 PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *));
77static lang_output_section_statement_type *output_rel_find
78 PARAMS ((void));
79static asection *output_prev_sec_find
80 PARAMS ((lang_output_section_statement_type *));
81static boolean gld${EMULATION_NAME}_place_orphan
82 PARAMS ((lang_input_statement_type *, asection *));
83static void gld${EMULATION_NAME}_finish
84 PARAMS ((void));
85static char *gld${EMULATION_NAME}_get_script
86 PARAMS ((int *isfile));
87
88EOF
89
90# Import any needed special functions and/or overrides.
91#
92if test -n "$EXTRA_EM_FILE" ; then
93. ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
94fi
95
96# Functions in this file can be overridden by setting the LDEMUL_* shell
97# variables. If the name of the overriding function is the same as is
98# defined in this file, then don't output this file's version.
99# If a different overriding name is given then output the standard function
100# as presumably it is called from the overriding function.
101#
102if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
103cat >>e${EMULATION_NAME}.c <<EOF
104
105static void
106gld${EMULATION_NAME}_before_parse ()
107{
108 const bfd_arch_info_type *arch = bfd_scan_arch ("${OUTPUT_ARCH}");
109 if (arch)
110 {
111 ldfile_output_architecture = arch->arch;
112 ldfile_output_machine = arch->mach;
113 ldfile_output_machine_name = arch->printable_name;
114 }
115 else
116 ldfile_output_architecture = bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`;
117 config.dynamic_link = ${DYNAMIC_LINK-true};
118 config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo true ; else echo false ; fi`;
119}
120
121EOF
122fi
123
124cat >>e${EMULATION_NAME}.c <<EOF
125
126/* These variables are required to pass information back and forth
127 between after_open and check_needed and stat_needed and vercheck. */
128
129static struct bfd_link_needed_list *global_needed;
130static struct stat global_stat;
131static boolean global_found;
132static struct bfd_link_needed_list *global_vercheck_needed;
133static boolean global_vercheck_failed;
134
135
136/* On Linux, it's possible to have different versions of the same
137 shared library linked against different versions of libc. The
138 dynamic linker somehow tags which libc version to use in
139 /etc/ld.so.cache, and, based on the libc that it sees in the
140 executable, chooses which version of the shared library to use.
141
142 We try to do a similar check here by checking whether this shared
143 library needs any other shared libraries which may conflict with
144 libraries we have already included in the link. If it does, we
145 skip it, and try to find another shared library farther on down the
146 link path.
147
148 This is called via lang_for_each_input_file.
149 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
150 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
151 a conflicting version. */
152
153static void
154gld${EMULATION_NAME}_vercheck (s)
155 lang_input_statement_type *s;
156{
157 const char *soname;
158 struct bfd_link_needed_list *l;
159
160 if (global_vercheck_failed)
161 return;
162 if (s->the_bfd == NULL
163 || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
164 return;
165
166 soname = bfd_elf_get_dt_soname (s->the_bfd);
167 if (soname == NULL)
168 soname = lbasename (bfd_get_filename (s->the_bfd));
169
170 for (l = global_vercheck_needed; l != NULL; l = l->next)
171 {
172 const char *suffix;
173
174 if (strcmp (soname, l->name) == 0)
175 {
176 /* Probably can't happen, but it's an easy check. */
177 continue;
178 }
179
180 if (strchr (l->name, '/') != NULL)
181 continue;
182
183 suffix = strstr (l->name, ".so.");
184 if (suffix == NULL)
185 continue;
186
187 suffix += sizeof ".so." - 1;
188
189 if (strncmp (soname, l->name, suffix - l->name) == 0)
190 {
191 /* Here we know that S is a dynamic object FOO.SO.VER1, and
192 the object we are considering needs a dynamic object
193 FOO.SO.VER2, and VER1 and VER2 are different. This
194 appears to be a version mismatch, so we tell the caller
195 to try a different version of this library. */
196 global_vercheck_failed = true;
197 return;
198 }
199 }
200}
201
202
203/* See if an input file matches a DT_NEEDED entry by running stat on
204 the file. */
205
206static void
207gld${EMULATION_NAME}_stat_needed (s)
208 lang_input_statement_type *s;
209{
210 struct stat st;
211 const char *suffix;
212 const char *soname;
213
214 if (global_found)
215 return;
216 if (s->the_bfd == NULL)
217 return;
218
219 if (bfd_stat (s->the_bfd, &st) != 0)
220 {
221 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
222 return;
223 }
224
225 if (st.st_dev == global_stat.st_dev
226 && st.st_ino == global_stat.st_ino)
227 {
228 global_found = true;
229 return;
230 }
231
232 /* We issue a warning if it looks like we are including two
233 different versions of the same shared library. For example,
234 there may be a problem if -lc picks up libc.so.6 but some other
235 shared library has a DT_NEEDED entry of libc.so.5. This is a
236 heuristic test, and it will only work if the name looks like
237 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
238 If we really want to issue warnings about mixing version numbers
239 of shared libraries, we need to find a better way. */
240
241 if (strchr (global_needed->name, '/') != NULL)
242 return;
243 suffix = strstr (global_needed->name, ".so.");
244 if (suffix == NULL)
245 return;
246 suffix += sizeof ".so." - 1;
247
248 soname = bfd_elf_get_dt_soname (s->the_bfd);
249 if (soname == NULL)
250 soname = lbasename (s->filename);
251
252 if (strncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
253 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
254 global_needed->name, global_needed->by, soname);
255}
256
257
258/* This function is called for each possible name for a dynamic object
259 named by a DT_NEEDED entry. The FORCE parameter indicates whether
260 to skip the check for a conflicting version. */
261
262static boolean
263gld${EMULATION_NAME}_try_needed (name, force)
264 const char *name;
265 int force;
266{
267 bfd *abfd;
268 const char *soname;
269
270 abfd = bfd_openr (name, bfd_get_target (output_bfd));
271 if (abfd == NULL)
272 return false;
273 if (! bfd_check_format (abfd, bfd_object))
274 {
275 bfd_close (abfd);
276 return false;
277 }
278 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
279 {
280 bfd_close (abfd);
281 return false;
282 }
283
284 /* For DT_NEEDED, they have to match. */
285 if (abfd->xvec != output_bfd->xvec)
286 {
287 bfd_close (abfd);
288 return false;
289 }
290
291 /* Check whether this object would include any conflicting library
292 versions. If FORCE is set, then we skip this check; we use this
293 the second time around, if we couldn't find any compatible
294 instance of the shared library. */
295
296 if (! force)
297 {
298 struct bfd_link_needed_list *needed;
299
300 if (! bfd_elf_get_bfd_needed_list (abfd, &needed))
301 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
302
303 if (needed != NULL)
304 {
305 global_vercheck_needed = needed;
306 global_vercheck_failed = false;
307 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
308 if (global_vercheck_failed)
309 {
310 bfd_close (abfd);
311 /* Return false to force the caller to move on to try
312 another file on the search path. */
313 return false;
314 }
315
316 /* But wait! It gets much worse. On Linux, if a shared
317 library does not use libc at all, we are supposed to skip
318 it the first time around in case we encounter a shared
319 library later on with the same name which does use the
320 version of libc that we want. This is much too horrible
321 to use on any system other than Linux. */
322
323EOF
324case ${target} in
325 *-*-linux-gnu*)
326 cat >>e${EMULATION_NAME}.c <<EOF
327 {
328 struct bfd_link_needed_list *l;
329
330 for (l = needed; l != NULL; l = l->next)
331 if (strncmp (l->name, "libc.so", 7) == 0)
332 break;
333 if (l == NULL)
334 {
335 bfd_close (abfd);
336 return false;
337 }
338 }
339
340EOF
341 ;;
342esac
343cat >>e${EMULATION_NAME}.c <<EOF
344 }
345 }
346
347 /* We've found a dynamic object matching the DT_NEEDED entry. */
348
349 /* We have already checked that there is no other input file of the
350 same name. We must now check again that we are not including the
351 same file twice. We need to do this because on many systems
352 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
353 reference libc.so.1. If we have already included libc.so, we
354 don't want to include libc.so.1 if they are the same file, and we
355 can only check that using stat. */
356
357 if (bfd_stat (abfd, &global_stat) != 0)
358 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
359
360 /* First strip off everything before the last '/'. */
361 soname = lbasename (abfd->filename);
362
363 if (trace_file_tries)
364 info_msg (_("found %s at %s\n"), soname, name);
365
366 global_found = false;
367 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
368 if (global_found)
369 {
370 /* Return true to indicate that we found the file, even though
371 we aren't going to do anything with it. */
372 return true;
373 }
374
375 /* Tell the ELF backend that we don't want the output file to have a
376 DT_NEEDED entry for this file. */
377 bfd_elf_set_dt_needed_name (abfd, "");
378
379 /* Tell the ELF backend that the output file needs a DT_NEEDED
380 entry for this file if it is used to resolve the reference in
381 a regular object. */
382 bfd_elf_set_dt_needed_soname (abfd, soname);
383
384 /* Add this file into the symbol table. */
385 if (! bfd_link_add_symbols (abfd, &link_info))
386 einfo ("%F%B: could not read symbols: %E\n", abfd);
387
388 return true;
389}
390
391
392/* Search for a needed file in a path. */
393
394static boolean
395gld${EMULATION_NAME}_search_needed (path, name, force)
396 const char *path;
397 const char *name;
398 int force;
399{
400 const char *s;
401 size_t len;
402
403 if (name[0] == '/')
404 return gld${EMULATION_NAME}_try_needed (name, force);
405
406 if (path == NULL || *path == '\0')
407 return false;
408 len = strlen (name);
409 while (1)
410 {
411 char *filename, *sset;
412
413 s = strchr (path, ':');
414 if (s == NULL)
415 s = path + strlen (path);
416
417 filename = (char *) xmalloc (s - path + len + 2);
418 if (s == path)
419 sset = filename;
420 else
421 {
422 memcpy (filename, path, s - path);
423 filename[s - path] = '/';
424 sset = filename + (s - path) + 1;
425 }
426 strcpy (sset, name);
427
428 if (gld${EMULATION_NAME}_try_needed (filename, force))
429 return true;
430
431 free (filename);
432
433 if (*s == '\0')
434 break;
435 path = s + 1;
436 }
437
438 return false;
439}
440
441EOF
442if [ "x${host}" = "x${target}" ] ; then
443 case " ${EMULATION_LIBPATH} " in
444 *" ${EMULATION_NAME} "*)
445 case ${target} in
446 *-*-linux-gnu*)
447 cat >>e${EMULATION_NAME}.c <<EOF
448
449/* For a native linker, check the file /etc/ld.so.conf for directories
450 in which we may find shared libraries. /etc/ld.so.conf is really
451 only meaningful on Linux. */
452
453static boolean gld${EMULATION_NAME}_check_ld_so_conf
454 PARAMS ((const char *, int));
455
456static boolean
457gld${EMULATION_NAME}_check_ld_so_conf (name, force)
458 const char *name;
459 int force;
460{
461 static boolean initialized;
462 static char *ld_so_conf;
463
464 if (! initialized)
465 {
466 FILE *f;
467
468 f = fopen ("/etc/ld.so.conf", FOPEN_RT);
469 if (f != NULL)
470 {
471 char *b;
472 size_t len, alloc;
473 int c;
474
475 len = 0;
476 alloc = 100;
477 b = (char *) xmalloc (alloc);
478
479 while ((c = getc (f)) != EOF)
480 {
481 if (len + 1 >= alloc)
482 {
483 alloc *= 2;
484 b = (char *) xrealloc (b, alloc);
485 }
486 if (c != ':'
487 && c != ' '
488 && c != '\t'
489 && c != '\n'
490 && c != ',')
491 {
492 b[len] = c;
493 ++len;
494 }
495 else
496 {
497 if (len > 0 && b[len - 1] != ':')
498 {
499 b[len] = ':';
500 ++len;
501 }
502 }
503 }
504
505 if (len > 0 && b[len - 1] == ':')
506 --len;
507
508 if (len > 0)
509 b[len] = '\0';
510 else
511 {
512 free (b);
513 b = NULL;
514 }
515
516 fclose (f);
517
518 ld_so_conf = b;
519 }
520
521 initialized = true;
522 }
523
524 if (ld_so_conf == NULL)
525 return false;
526
527 return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force);
528}
529
530EOF
531 # Linux
532 ;;
533 esac
534 esac
535fi
536cat >>e${EMULATION_NAME}.c <<EOF
537
538/* See if an input file matches a DT_NEEDED entry by name. */
539
540static void
541gld${EMULATION_NAME}_check_needed (s)
542 lang_input_statement_type *s;
543{
544 if (global_found)
545 return;
546
547 if (s->filename != NULL)
548 {
549 const char *f;
550
551 if (strcmp (s->filename, global_needed->name) == 0)
552 {
553 global_found = true;
554 return;
555 }
556
557 if (s->search_dirs_flag)
558 {
559 f = strrchr (s->filename, '/');
560 if (f != NULL
561 && strcmp (f + 1, global_needed->name) == 0)
562 {
563 global_found = true;
564 return;
565 }
566 }
567 }
568
569 if (s->the_bfd != NULL)
570 {
571 const char *soname;
572
573 soname = bfd_elf_get_dt_soname (s->the_bfd);
574 if (soname != NULL
575 && strcmp (soname, global_needed->name) == 0)
576 {
577 global_found = true;
578 return;
579 }
580 }
581}
582
583EOF
584
585if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
586cat >>e${EMULATION_NAME}.c <<EOF
587
588/* This is called after all the input files have been opened. */
589
590static void
591gld${EMULATION_NAME}_after_open ()
592{
593 struct bfd_link_needed_list *needed, *l;
594
595 /* We only need to worry about this when doing a final link. */
596 if (link_info.relocateable || link_info.shared)
597 return;
598
599 /* Get the list of files which appear in DT_NEEDED entries in
600 dynamic objects included in the link (often there will be none).
601 For each such file, we want to track down the corresponding
602 library, and include the symbol table in the link. This is what
603 the runtime dynamic linker will do. Tracking the files down here
604 permits one dynamic object to include another without requiring
605 special action by the person doing the link. Note that the
606 needed list can actually grow while we are stepping through this
607 loop. */
608 needed = bfd_elf_get_needed_list (output_bfd, &link_info);
609 for (l = needed; l != NULL; l = l->next)
610 {
611 struct bfd_link_needed_list *ll;
612 int force;
613
614 /* If we've already seen this file, skip it. */
615 for (ll = needed; ll != l; ll = ll->next)
616 if (strcmp (ll->name, l->name) == 0)
617 break;
618 if (ll != l)
619 continue;
620
621 /* See if this file was included in the link explicitly. */
622 global_needed = l;
623 global_found = false;
624 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
625 if (global_found)
626 continue;
627
628 if (trace_file_tries)
629 info_msg (_("%s needed by %B\n"), l->name, l->by);
630
631 /* We need to find this file and include the symbol table. We
632 want to search for the file in the same way that the dynamic
633 linker will search. That means that we want to use
634 rpath_link, rpath, then the environment variable
635 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
636 entries (native only), then the linker script LIB_SEARCH_DIRS.
637 We do not search using the -L arguments.
638
639 We search twice. The first time, we skip objects which may
640 introduce version mismatches. The second time, we force
641 their use. See gld${EMULATION_NAME}_vercheck comment. */
642 for (force = 0; force < 2; force++)
643 {
644 size_t len;
645 search_dirs_type *search;
646EOF
647if [ "x${host}" = "x${target}" ] ; then
648 case " ${EMULATION_LIBPATH} " in
649 *" ${EMULATION_NAME} "*)
650cat >>e${EMULATION_NAME}.c <<EOF
651 const char *lib_path;
652 struct bfd_link_needed_list *rp;
653 int found;
654EOF
655 ;;
656 esac
657fi
658cat >>e${EMULATION_NAME}.c <<EOF
659
660 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
661 l->name, force))
662 break;
663EOF
664if [ "x${host}" = "x${target}" ] ; then
665 case " ${EMULATION_LIBPATH} " in
666 *" ${EMULATION_NAME} "*)
667cat >>e${EMULATION_NAME}.c <<EOF
668 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
669 l->name, force))
670 break;
671 if (command_line.rpath_link == NULL
672 && command_line.rpath == NULL)
673 {
674 lib_path = (const char *) getenv ("LD_RUN_PATH");
675 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name,
676 force))
677 break;
678 }
679 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
680 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force))
681 break;
682
683 found = 0;
684 rp = bfd_elf_get_runpath_list (output_bfd, &link_info);
685 for (; !found && rp != NULL; rp = rp->next)
686 {
687 found = (rp->by == l->by
688 && gld${EMULATION_NAME}_search_needed (rp->name,
689 l->name,
690 force));
691 }
692 if (found)
693 break;
694
695EOF
696 ;;
697 esac
698fi
699cat >>e${EMULATION_NAME}.c <<EOF
700 len = strlen (l->name);
701 for (search = search_head; search != NULL; search = search->next)
702 {
703 char *filename;
704
705 if (search->cmdline)
706 continue;
707 filename = (char *) xmalloc (strlen (search->name) + len + 2);
708 sprintf (filename, "%s/%s", search->name, l->name);
709 if (gld${EMULATION_NAME}_try_needed (filename, force))
710 break;
711 free (filename);
712 }
713 if (search != NULL)
714 break;
715EOF
716if [ "x${host}" = "x${target}" ] ; then
717 case " ${EMULATION_LIBPATH} " in
718 *" ${EMULATION_NAME} "*)
719 case ${target} in
720 *-*-linux-gnu*)
721 cat >>e${EMULATION_NAME}.c <<EOF
722 if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
723 break;
724EOF
725 # Linux
726 ;;
727 esac
728 ;;
729 esac
730fi
731cat >>e${EMULATION_NAME}.c <<EOF
732 }
733
734 if (force < 2)
735 continue;
736
737 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
738 l->name, l->by);
739 }
740}
741
742EOF
743fi
744
745cat >>e${EMULATION_NAME}.c <<EOF
746
747/* Look through an expression for an assignment statement. */
748
749static void
750gld${EMULATION_NAME}_find_exp_assignment (exp)
751 etree_type *exp;
752{
753 struct bfd_link_hash_entry *h;
754
755 switch (exp->type.node_class)
756 {
757 case etree_provide:
758 h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
759 false, false, false);
760 if (h == NULL)
761 break;
762
763 /* We call record_link_assignment even if the symbol is defined.
764 This is because if it is defined by a dynamic object, we
765 actually want to use the value defined by the linker script,
766 not the value from the dynamic object (because we are setting
767 symbols like etext). If the symbol is defined by a regular
768 object, then, as it happens, calling record_link_assignment
769 will do no harm. */
770
771 /* Fall through. */
772 case etree_assign:
773 if (strcmp (exp->assign.dst, ".") != 0)
774 {
775 if (! (bfd_elf${ELFSIZE}_record_link_assignment
776 (output_bfd, &link_info, exp->assign.dst,
777 exp->type.node_class == etree_provide ? true : false)))
778 einfo ("%P%F: failed to record assignment to %s: %E\n",
779 exp->assign.dst);
780 }
781 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
782 break;
783
784 case etree_binary:
785 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
786 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
787 break;
788
789 case etree_trinary:
790 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
791 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
792 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
793 break;
794
795 case etree_unary:
796 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
797 break;
798
799 default:
800 break;
801 }
802}
803
804
805/* This is called by the before_allocation routine via
806 lang_for_each_statement. It locates any assignment statements, and
807 tells the ELF backend about them, in case they are assignments to
808 symbols which are referred to by dynamic objects. */
809
810static void
811gld${EMULATION_NAME}_find_statement_assignment (s)
812 lang_statement_union_type *s;
813{
814 if (s->header.type == lang_assignment_statement_enum)
815 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
816}
817
818EOF
819
820if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
821 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
822 ELF_INTERPRETER_SET_DEFAULT="
823 if (sinterp != NULL)
824 {
825 sinterp->contents = ${ELF_INTERPRETER_NAME};
826 sinterp->_raw_size = strlen (sinterp->contents) + 1;
827 }
828
829"
830 else
831 ELF_INTERPRETER_SET_DEFAULT=
832 fi
833cat >>e${EMULATION_NAME}.c <<EOF
834
835/* This is called after the sections have been attached to output
836 sections, but before any sizes or addresses have been set. */
837
838static void
839gld${EMULATION_NAME}_before_allocation ()
840{
841 const char *rpath;
842 asection *sinterp;
843
844 /* If we are going to make any variable assignments, we need to let
845 the ELF backend know about them in case the variables are
846 referred to by dynamic objects. */
847 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
848
849 /* Let the ELF backend work out the sizes of any sections required
850 by dynamic linking. */
851 rpath = command_line.rpath;
852 if (rpath == NULL)
853 rpath = (const char *) getenv ("LD_RUN_PATH");
854 if (! (bfd_elf${ELFSIZE}_size_dynamic_sections
855 (output_bfd, command_line.soname, rpath,
856 command_line.filter_shlib,
857 (const char * const *) command_line.auxiliary_filters,
858 &link_info, &sinterp, lang_elf_version_info)))
859 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
860${ELF_INTERPRETER_SET_DEFAULT}
861 /* Let the user override the dynamic linker we are using. */
862 if (command_line.interpreter != NULL
863 && sinterp != NULL)
864 {
865 sinterp->contents = (bfd_byte *) command_line.interpreter;
866 sinterp->_raw_size = strlen (command_line.interpreter) + 1;
867 }
868
869 /* Look for any sections named .gnu.warning. As a GNU extensions,
870 we treat such sections as containing warning messages. We print
871 out the warning message, and then zero out the section size so
872 that it does not get copied into the output file. */
873
874 {
875 LANG_FOR_EACH_INPUT_STATEMENT (is)
876 {
877 asection *s;
878 bfd_size_type sz;
879 char *msg;
880 boolean ret;
881
882 if (is->just_syms_flag)
883 continue;
884
885 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
886 if (s == NULL)
887 continue;
888
889 sz = bfd_section_size (is->the_bfd, s);
890 msg = xmalloc ((size_t) sz + 1);
891 if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz))
892 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
893 is->the_bfd);
894 msg[sz] = '\0';
895 ret = link_info.callbacks->warning (&link_info, msg,
896 (const char *) NULL,
897 is->the_bfd, (asection *) NULL,
898 (bfd_vma) 0);
899 ASSERT (ret);
900 free (msg);
901
902 /* Clobber the section size, so that we don't waste copying the
903 warning into the output file. */
904 s->_raw_size = 0;
905 }
906 }
907}
908
909EOF
910fi
911
912if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
913cat >>e${EMULATION_NAME}.c <<EOF
914
915/* Try to open a dynamic archive. This is where we know that ELF
916 dynamic libraries have an extension of .so (or .sl on oddball systems
917 like hpux). */
918
919static boolean
920gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
921 const char *arch;
922 search_dirs_type *search;
923 lang_input_statement_type *entry;
924{
925 const char *filename;
926 char *string;
927
928 if (! entry->is_archive)
929 return false;
930
931 filename = entry->filename;
932
933 /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
934 is defined, but it does not seem worth the headache to optimize
935 away those two bytes of space. */
936 string = (char *) xmalloc (strlen (search->name)
937 + strlen (filename)
938 + strlen (arch)
939#ifdef EXTRA_SHLIB_EXTENSION
940 + strlen (EXTRA_SHLIB_EXTENSION)
941#endif
942 + sizeof "/lib.so");
943
944 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
945
946#ifdef EXTRA_SHLIB_EXTENSION
947 /* Try the .so extension first. If that fails build a new filename
948 using EXTRA_SHLIB_EXTENSION. */
949 if (! ldfile_try_open_bfd (string, entry))
950 sprintf (string, "%s/lib%s%s%s", search->name,
951 filename, arch, EXTRA_SHLIB_EXTENSION);
952#endif
953
954 if (! ldfile_try_open_bfd (string, entry))
955 {
956 free (string);
957 return false;
958 }
959
960 entry->filename = string;
961
962 /* We have found a dynamic object to include in the link. The ELF
963 backend linker will create a DT_NEEDED entry in the .dynamic
964 section naming this file. If this file includes a DT_SONAME
965 entry, it will be used. Otherwise, the ELF linker will just use
966 the name of the file. For an archive found by searching, like
967 this one, the DT_NEEDED entry should consist of just the name of
968 the file, without the path information used to find it. Note
969 that we only need to do this if we have a dynamic object; an
970 archive will never be referenced by a DT_NEEDED entry.
971
972 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
973 very pretty. I haven't been able to think of anything that is
974 pretty, though. */
975 if (bfd_check_format (entry->the_bfd, bfd_object)
976 && (entry->the_bfd->flags & DYNAMIC) != 0)
977 {
978 ASSERT (entry->is_archive && entry->search_dirs_flag);
979
980 /* Rather than duplicating the logic above. Just use the
981 filename we recorded earlier. */
982
983 filename = lbasename (entry->filename);
984 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
985 }
986
987 return true;
988}
989
990EOF
991fi
992
993if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
994cat >>e${EMULATION_NAME}.c <<EOF
995
996/* A variant of lang_output_section_find. Used by place_orphan. */
997
998static lang_output_section_statement_type *
999output_rel_find ()
1000{
1001 lang_statement_union_type *u;
1002 lang_output_section_statement_type *lookup;
1003
1004 for (u = lang_output_section_statement.head;
1005 u != (lang_statement_union_type *) NULL;
1006 u = lookup->next)
1007 {
1008 lookup = &u->output_section_statement;
1009 if (strncmp (".rel", lookup->name, 4) == 0
1010 && lookup->bfd_section != NULL
1011 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1012 {
1013 return lookup;
1014 }
1015 }
1016 return (lang_output_section_statement_type *) NULL;
1017}
1018
1019/* Find the last output section before given output statement.
1020 Used by place_orphan. */
1021
1022static asection *
1023output_prev_sec_find (os)
1024 lang_output_section_statement_type *os;
1025{
1026 asection *s = (asection *) NULL;
1027 lang_statement_union_type *u;
1028 lang_output_section_statement_type *lookup;
1029
1030 for (u = lang_output_section_statement.head;
1031 u != (lang_statement_union_type *) NULL;
1032 u = lookup->next)
1033 {
1034 lookup = &u->output_section_statement;
1035 if (lookup == os)
1036 return s;
1037
1038 if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL)
1039 s = lookup->bfd_section;
1040 }
1041
1042 return NULL;
1043}
1044
1045/* Place an orphan section. We use this to put random SHF_ALLOC
1046 sections in the right segment. */
1047
1048struct orphan_save {
1049 lang_output_section_statement_type *os;
1050 asection **section;
1051 lang_statement_union_type **stmt;
1052};
1053
1054static boolean
1055gld${EMULATION_NAME}_place_orphan (file, s)
1056 lang_input_statement_type *file;
1057 asection *s;
1058{
1059 static struct orphan_save hold_text;
1060 static struct orphan_save hold_rodata;
1061 static struct orphan_save hold_data;
1062 static struct orphan_save hold_bss;
1063 static struct orphan_save hold_rel;
1064 static struct orphan_save hold_interp;
1065 static struct orphan_save hold_sdata;
1066 static int count = 1;
1067 struct orphan_save *place;
1068 lang_statement_list_type *old;
1069 lang_statement_list_type add;
1070 etree_type *address;
1071 const char *secname;
1072 const char *outsecname;
1073 const char *ps = NULL;
1074 lang_output_section_statement_type *os;
1075
1076 secname = bfd_get_section_name (s->owner, s);
1077
1078 if (! config.unique_orphan_sections && ! unique_section_p (secname))
1079 {
1080 /* Look through the script to see where to place this section. */
1081 os = lang_output_section_find (secname);
1082
1083 if (os != NULL
1084 && (os->bfd_section == NULL
1085 || ((s->flags ^ os->bfd_section->flags)
1086 & (SEC_LOAD | SEC_ALLOC)) == 0))
1087 {
1088 /* We already have an output section statement with this
1089 name, and its bfd section, if any, has compatible flags. */
1090 lang_add_section (&os->children, s, os, file);
1091 return true;
1092 }
1093 }
1094
1095 if (hold_text.os == NULL)
1096 hold_text.os = lang_output_section_find (".text");
1097
1098 /* If this is a final link, then always put .gnu.warning.SYMBOL
1099 sections into the .text section to get them out of the way. */
1100 if (! link_info.shared
1101 && ! link_info.relocateable
1102 && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
1103 && hold_text.os != NULL)
1104 {
1105 lang_add_section (&hold_text.os->children, s, hold_text.os, file);
1106 return true;
1107 }
1108
1109 /* Decide which segment the section should go in based on the
1110 section name and section flags. We put loadable .note sections
1111 right after the .interp section, so that the PT_NOTE segment is
1112 stored right after the program headers where the OS can read it
1113 in the first page. */
1114#define HAVE_SECTION(hold, name) \
1115(hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
1116
1117 if ((s->flags & SEC_EXCLUDE) != 0 && !link_info.relocateable)
1118 {
1119 if (s->output_section == NULL)
1120 s->output_section = bfd_abs_section_ptr;
1121 return true;
1122 }
1123
1124 place = NULL;
1125 if ((s->flags & SEC_ALLOC) == 0)
1126 ;
1127 else if ((s->flags & SEC_LOAD) != 0
1128 && strncmp (secname, ".note", 5) == 0
1129 && HAVE_SECTION (hold_interp, ".interp"))
1130 place = &hold_interp;
1131 else if ((s->flags & SEC_HAS_CONTENTS) == 0
1132 && HAVE_SECTION (hold_bss, ".bss"))
1133 place = &hold_bss;
1134 else if ((s->flags & SEC_SMALL_DATA) != 0
1135 && HAVE_SECTION (hold_sdata, ".sdata"))
1136 place = &hold_sdata;
1137 else if ((s->flags & SEC_READONLY) == 0
1138 && HAVE_SECTION (hold_data, ".data"))
1139 place = &hold_data;
1140 else if (strncmp (secname, ".rel", 4) == 0
1141 && (hold_rel.os != NULL
1142 || (hold_rel.os = output_rel_find ()) != NULL))
1143 {
1144 if (! link_info.relocateable && link_info.combreloc)
1145 {
1146 if (strncmp (secname, ".rela", 5) == 0)
1147 os = lang_output_section_find (".rela.dyn");
1148 else
1149 os = lang_output_section_find (".rel.dyn");
1150
1151 if (os != NULL
1152 && os->bfd_section != NULL
1153 && ((s->flags ^ os->bfd_section->flags)
1154 & (SEC_LOAD | SEC_ALLOC)) == 0)
1155 {
1156 lang_add_section (&os->children, s, os, file);
1157 return true;
1158 }
1159 }
1160 place = &hold_rel;
1161 }
1162 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == SEC_READONLY
1163 && HAVE_SECTION (hold_rodata, ".rodata"))
1164 place = &hold_rodata;
1165 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == (SEC_CODE | SEC_READONLY)
1166 && hold_text.os != NULL)
1167 place = &hold_text;
1168
1169#undef HAVE_SECTION
1170
1171 /* Choose a unique name for the section. This will be needed if the
1172 same section name appears in the input file with different
1173 loadable or allocatable characteristics. */
1174 outsecname = secname;
1175 if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
1176 {
1177 outsecname = bfd_get_unique_section_name (output_bfd,
1178 outsecname,
1179 &count);
1180 if (outsecname == NULL)
1181 einfo ("%F%P: place_orphan failed: %E\n");
1182 }
1183
1184 /* Start building a list of statements for this section.
1185 First save the current statement pointer. */
1186 old = stat_ptr;
1187
1188 /* If we have found an appropriate place for the output section
1189 statements for this orphan, add them to our own private list,
1190 inserting them later into the global statement list. */
1191 if (place != NULL)
1192 {
1193 stat_ptr = &add;
1194 lang_list_init (stat_ptr);
1195 }
1196
1197 if (config.build_constructors)
1198 {
1199 /* If the name of the section is representable in C, then create
1200 symbols to mark the start and the end of the section. */
1201 for (ps = outsecname; *ps != '\0'; ps++)
1202 if (! ISALNUM (*ps) && *ps != '_')
1203 break;
1204 if (*ps == '\0')
1205 {
1206 char *symname;
1207 etree_type *e_align;
1208
1209 symname = (char *) xmalloc (ps - outsecname + sizeof "__start_");
1210 sprintf (symname, "__start_%s", outsecname);
1211 e_align = exp_unop (ALIGN_K,
1212 exp_intop ((bfd_vma) 1 << s->alignment_power));
1213 lang_add_assignment (exp_assop ('=', symname, e_align));
1214 }
1215 }
1216
1217 if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
1218 address = exp_intop ((bfd_vma) 0);
1219 else
1220 address = NULL;
1221
1222 os = lang_enter_output_section_statement (outsecname, address, 0,
1223 (bfd_vma) 0,
1224 (etree_type *) NULL,
1225 (etree_type *) NULL,
1226 (etree_type *) NULL);
1227
1228 lang_add_section (&os->children, s, os, file);
1229
1230 lang_leave_output_section_statement
1231 ((bfd_vma) 0, "*default*",
1232 (struct lang_output_section_phdr_list *) NULL, NULL);
1233
1234 if (config.build_constructors && *ps == '\0')
1235 {
1236 char *symname;
1237
1238 /* lang_leave_ouput_section_statement resets stat_ptr. Put
1239 stat_ptr back where we want it. */
1240 if (place != NULL)
1241 stat_ptr = &add;
1242
1243 symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_");
1244 sprintf (symname, "__stop_%s", outsecname);
1245 lang_add_assignment (exp_assop ('=', symname,
1246 exp_nameop (NAME, ".")));
1247 }
1248
1249 /* Restore the global list pointer. */
1250 stat_ptr = old;
1251
1252 if (place != NULL && os->bfd_section != NULL)
1253 {
1254 asection *snew, **pps;
1255
1256 snew = os->bfd_section;
1257
1258 /* Shuffle the bfd section list to make the output file look
1259 neater. This is really only cosmetic. */
1260 if (place->section == NULL)
1261 {
1262 asection *bfd_section = place->os->bfd_section;
1263
1264 /* If the output statement hasn't been used to place
1265 any input sections (and thus doesn't have an output
1266 bfd_section), look for the closest prior output statement
1267 having an output section. */
1268 if (bfd_section == NULL)
1269 bfd_section = output_prev_sec_find (place->os);
1270
1271 if (bfd_section != NULL && bfd_section != snew)
1272 place->section = &bfd_section->next;
1273 }
1274
1275 if (place->section != NULL)
1276 {
1277 /* Unlink the section. */
1278 for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
1279 ;
1280 bfd_section_list_remove (output_bfd, pps);
1281
1282 /* Now tack it on to the "place->os" section list. */
1283 bfd_section_list_insert (output_bfd, place->section, snew);
1284 }
1285
1286 /* Save the end of this list. Further ophans of this type will
1287 follow the one we've just added. */
1288 place->section = &snew->next;
1289
1290 /* The following is non-cosmetic. We try to put the output
1291 statements in some sort of reasonable order here, because
1292 they determine the final load addresses of the orphan
1293 sections. In addition, placing output statements in the
1294 wrong order may require extra segments. For instance,
1295 given a typical situation of all read-only sections placed
1296 in one segment and following that a segment containing all
1297 the read-write sections, we wouldn't want to place an orphan
1298 read/write section before or amongst the read-only ones. */
1299 if (add.head != NULL)
1300 {
1301 if (place->stmt == NULL)
1302 {
1303 /* Put the new statement list right at the head. */
1304 *add.tail = place->os->header.next;
1305 place->os->header.next = add.head;
1306 }
1307 else
1308 {
1309 /* Put it after the last orphan statement we added. */
1310 *add.tail = *place->stmt;
1311 *place->stmt = add.head;
1312 }
1313
1314 /* Fix the global list pointer if we happened to tack our
1315 new list at the tail. */
1316 if (*old->tail == add.head)
1317 old->tail = add.tail;
1318
1319 /* Save the end of this list. */
1320 place->stmt = add.tail;
1321 }
1322 }
1323
1324 return true;
1325}
1326EOF
1327fi
1328
1329if test x"$LDEMUL_FINISH" != xgld"$EMULATION_NAME"_finish; then
1330cat >>e${EMULATION_NAME}.c <<EOF
1331
1332static void
1333gld${EMULATION_NAME}_finish ()
1334{
1335 if (bfd_elf${ELFSIZE}_discard_info (output_bfd, &link_info))
1336 {
1337 lang_reset_memory_regions ();
1338
1339 /* Resize the sections. */
1340 lang_size_sections (stat_ptr->head, abs_output_section,
1341 &stat_ptr->head, 0, (bfd_vma) 0, NULL);
1342
1343 /* Redo special stuff. */
1344 ldemul_after_allocation ();
1345
1346 /* Do the assignments again. */
1347 lang_do_assignments (stat_ptr->head, abs_output_section,
1348 (fill_type *) 0, (bfd_vma) 0);
1349 }
1350}
1351EOF
1352fi
1353
1354if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
1355cat >>e${EMULATION_NAME}.c <<EOF
1356
1357static char *
1358gld${EMULATION_NAME}_get_script (isfile)
1359 int *isfile;
1360EOF
1361
1362if test -n "$COMPILE_IN"
1363then
1364# Scripts compiled in.
1365
1366# sed commands to quote an ld script as a C string.
1367sc="-f stringify.sed"
1368
1369cat >>e${EMULATION_NAME}.c <<EOF
1370{
1371 *isfile = 0;
1372
1373 if (link_info.relocateable == true && config.build_constructors == true)
1374 return
1375EOF
1376sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1377echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
1378sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1379echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1380sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1381if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
1382echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1383sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1384fi
1385if test -n "$GENERATE_SHLIB_SCRIPT" ; then
1386if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1387echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
1388sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
1389fi
1390echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
1391sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
1392fi
1393if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1394echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
1395sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
1396fi
1397echo ' ; else return' >> e${EMULATION_NAME}.c
1398sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1399echo '; }' >> e${EMULATION_NAME}.c
1400
1401else
1402# Scripts read from the filesystem.
1403
1404cat >>e${EMULATION_NAME}.c <<EOF
1405{
1406 *isfile = 1;
1407
1408 if (link_info.relocateable == true && config.build_constructors == true)
1409 return "ldscripts/${EMULATION_NAME}.xu";
1410 else if (link_info.relocateable == true)
1411 return "ldscripts/${EMULATION_NAME}.xr";
1412 else if (!config.text_read_only)
1413 return "ldscripts/${EMULATION_NAME}.xbn";
1414 else if (!config.magic_demand_paged)
1415 return "ldscripts/${EMULATION_NAME}.xn";
1416 else if (link_info.shared)
1417 return "ldscripts/${EMULATION_NAME}.xs";
1418 else
1419 return "ldscripts/${EMULATION_NAME}.x";
1420}
1421
1422EOF
1423fi
1424fi
1425
1426if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1427
1428if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
1429
1430if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
1431cat >>e${EMULATION_NAME}.c <<EOF
1432 $PARSE_AND_LIST_PROLOGUE
1433EOF
1434fi
1435
1436cat >>e${EMULATION_NAME}.c <<EOF
1437
1438#include "getopt.h"
1439
1440#define OPTION_DISABLE_NEW_DTAGS (400)
1441#define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
1442#define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
1443#define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
1444
1445static struct option longopts[] =
1446{
1447EOF
1448
1449if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1450cat >>e${EMULATION_NAME}.c <<EOF
1451 /* getopt allows abbreviations, so we do this to stop it from
1452 treating -d/-e as abbreviations for these options. */
1453 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1454 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1455 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
1456 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
1457 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
1458 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1459 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1460EOF
1461fi
1462
1463if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
1464cat >>e${EMULATION_NAME}.c <<EOF
1465 $PARSE_AND_LIST_LONGOPTS
1466EOF
1467fi
1468
1469cat >>e${EMULATION_NAME}.c <<EOF
1470 {NULL, no_argument, NULL, 0}
1471};
1472
1473
1474static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
1475
1476static int
1477gld${EMULATION_NAME}_parse_args (argc, argv)
1478 int argc;
1479 char ** argv;
1480{
1481 int longind;
1482 int optc;
1483 static int prevoptind = -1;
1484 int prevopterr = opterr;
1485 int wanterror;
1486
1487 if (prevoptind != optind)
1488 opterr = 0;
1489
1490 wanterror = opterr;
1491 prevoptind = optind;
1492
1493 optc = getopt_long_only (argc, argv,
1494 "-${PARSE_AND_LIST_SHORTOPTS}z:", longopts,
1495 &longind);
1496 opterr = prevopterr;
1497
1498 switch (optc)
1499 {
1500 default:
1501 if (wanterror)
1502 xexit (1);
1503 optind = prevoptind;
1504 return 0;
1505
1506EOF
1507
1508if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1509cat >>e${EMULATION_NAME}.c <<EOF
1510 case OPTION_DISABLE_NEW_DTAGS:
1511 link_info.new_dtags = false;
1512 break;
1513
1514 case OPTION_ENABLE_NEW_DTAGS:
1515 link_info.new_dtags = true;
1516 break;
1517
1518 case OPTION_EH_FRAME_HDR:
1519 link_info.eh_frame_hdr = true;
1520 break;
1521
1522 case OPTION_GROUP:
1523 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
1524 /* Groups must be self-contained. */
1525 link_info.no_undefined = true;
1526 break;
1527
1528 case 'z':
1529 if (strcmp (optarg, "initfirst") == 0)
1530 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
1531 else if (strcmp (optarg, "interpose") == 0)
1532 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
1533 else if (strcmp (optarg, "loadfltr") == 0)
1534 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
1535 else if (strcmp (optarg, "nodefaultlib") == 0)
1536 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
1537 else if (strcmp (optarg, "nodelete") == 0)
1538 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
1539 else if (strcmp (optarg, "nodlopen") == 0)
1540 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
1541 else if (strcmp (optarg, "nodump") == 0)
1542 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
1543 else if (strcmp (optarg, "now") == 0)
1544 {
1545 link_info.flags |= (bfd_vma) DF_BIND_NOW;
1546 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
1547 }
1548 else if (strcmp (optarg, "origin") == 0)
1549 {
1550 link_info.flags |= (bfd_vma) DF_ORIGIN;
1551 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
1552 }
1553 else if (strcmp (optarg, "defs") == 0)
1554 link_info.no_undefined = true;
1555 else if (strcmp (optarg, "muldefs") == 0)
1556 link_info.allow_multiple_definition = true;
1557 else if (strcmp (optarg, "combreloc") == 0)
1558 link_info.combreloc = true;
1559 else if (strcmp (optarg, "nocombreloc") == 0)
1560 link_info.combreloc = false;
1561 else if (strcmp (optarg, "nocopyreloc") == 0)
1562 link_info.nocopyreloc = true;
1563 /* What about the other Solaris -z options? FIXME. */
1564 break;
1565EOF
1566fi
1567
1568if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
1569cat >>e${EMULATION_NAME}.c <<EOF
1570 $PARSE_AND_LIST_ARGS_CASES
1571EOF
1572fi
1573
1574cat >>e${EMULATION_NAME}.c <<EOF
1575 }
1576
1577 return 1;
1578}
1579
1580EOF
1581fi
1582
1583if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1584cat >>e${EMULATION_NAME}.c <<EOF
1585
1586static void gld${EMULATION_NAME}_list_options PARAMS ((FILE * file));
1587
1588static void
1589gld${EMULATION_NAME}_list_options (file)
1590 FILE * file;
1591{
1592EOF
1593
1594if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1595cat >>e${EMULATION_NAME}.c <<EOF
1596 fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
1597 fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
1598 fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
1599 fprintf (file, _(" --eh-frame-hdr\tCreate .eh_frame_hdr section\n"));
1600 fprintf (file, _(" -z combreloc\t\tMerge dynamic relocs into one section and sort\n"));
1601 fprintf (file, _(" -z defs\t\tDisallows undefined symbols\n"));
1602 fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
1603 fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
1604 fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
1605 fprintf (file, _(" -z muldefs\t\tAllow multiple definitions\n"));
1606 fprintf (file, _(" -z nocombreloc\tDon't merge dynamic relocs into one section\n"));
1607 fprintf (file, _(" -z nocopyreloc\tDon't create copy relocs\n"));
1608 fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
1609 fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
1610 fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));
1611 fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n"));
1612 fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n"));
1613 fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n\t\t\t at runtime\n"));
1614 fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n"));
1615EOF
1616fi
1617
1618if test -n "$PARSE_AND_LIST_OPTIONS" ; then
1619cat >>e${EMULATION_NAME}.c <<EOF
1620 $PARSE_AND_LIST_OPTIONS
1621EOF
1622fi
1623
1624cat >>e${EMULATION_NAME}.c <<EOF
1625}
1626EOF
1627
1628if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
1629cat >>e${EMULATION_NAME}.c <<EOF
1630 $PARSE_AND_LIST_EPILOGUE
1631EOF
1632fi
1633fi
1634else
1635if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
1636cat >>e${EMULATION_NAME}.c <<EOF
1637#define gld${EMULATION_NAME}_parse_args NULL
1638EOF
1639fi
1640if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1641cat >>e${EMULATION_NAME}.c <<EOF
1642#define gld${EMULATION_NAME}_list_options NULL
1643EOF
1644fi
1645fi
1646
1647cat >>e${EMULATION_NAME}.c <<EOF
1648
1649struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1650{
1651 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
1652 ${LDEMUL_SYSLIB-syslib_default},
1653 ${LDEMUL_HLL-hll_default},
1654 ${LDEMUL_AFTER_PARSE-after_parse_default},
1655 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
1656 ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
1657 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
1658 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
1659 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
1660 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
1661 "${EMULATION_NAME}",
1662 "${OUTPUT_FORMAT}",
1663 ${LDEMUL_FINISH-gld${EMULATION_NAME}_finish},
1664 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
1665 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
1666 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
1667 ${LDEMUL_SET_SYMBOLS-NULL},
1668 ${LDEMUL_PARSE_ARGS-gld${EMULATION_NAME}_parse_args},
1669 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
1670 ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
1671 ${LDEMUL_RECOGNIZED_FILE-NULL},
1672 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
1673 ${LDEMUL_NEW_VERS_PATTERN-NULL}
1674};
1675EOF
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