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252b5132
RH
1# This shell script emits a C file. -*- C -*-
2# It does some substitutions.
3# This file is now misnamed, because it supports both 32 bit and 64 bit
4# ELF emulations.
5test -z "${ELFSIZE}" && ELFSIZE=32
86af25fe
L
6if [ -z "$MACHINE" ]; then
7 OUTPUT_ARCH=${ARCH}
8else
9 OUTPUT_ARCH=${ARCH}:${MACHINE}
10fi
252b5132
RH
11cat >e${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 ${EMULATION_NAME}
e3dc8847
HPN
15 Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
16 2002 Free Software Foundation, Inc.
252b5132
RH
17 Written by Steve Chamberlain <sac@cygnus.com>
18 ELF support by Ian Lance Taylor <ian@cygnus.com>
19
20This file is part of GLD, the Gnu Linker.
21
22This program is free software; you can redistribute it and/or modify
23it under the terms of the GNU General Public License as published by
24the Free Software Foundation; either version 2 of the License, or
25(at your option) any later version.
26
27This program is distributed in the hope that it will be useful,
28but WITHOUT ANY WARRANTY; without even the implied warranty of
29MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30GNU General Public License for more details.
31
32You should have received a copy of the GNU General Public License
33along with this program; if not, write to the Free Software
34Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
35
36#define TARGET_IS_${EMULATION_NAME}
37
38#include "bfd.h"
39#include "sysdep.h"
1c9acd94 40#include "libiberty.h"
3882b010 41#include "safe-ctype.h"
252b5132
RH
42
43#include "bfdlink.h"
44
45#include "ld.h"
46#include "ldmain.h"
252b5132
RH
47#include "ldmisc.h"
48#include "ldexp.h"
49#include "ldlang.h"
b71e2778
AM
50#include "ldfile.h"
51#include "ldemul.h"
252b5132 52#include "ldgram.h"
e0ee487b 53#include "elf/common.h"
252b5132 54
cde43e70
AM
55static void gld${EMULATION_NAME}_before_parse
56 PARAMS ((void));
04925e1e 57static void gld${EMULATION_NAME}_vercheck
252b5132
RH
58 PARAMS ((lang_input_statement_type *));
59static void gld${EMULATION_NAME}_stat_needed
60 PARAMS ((lang_input_statement_type *));
cde43e70
AM
61static boolean gld${EMULATION_NAME}_try_needed
62 PARAMS ((const char *, int));
252b5132
RH
63static boolean gld${EMULATION_NAME}_search_needed
64 PARAMS ((const char *, const char *, int));
04925e1e 65static void gld${EMULATION_NAME}_check_needed
252b5132 66 PARAMS ((lang_input_statement_type *));
cde43e70
AM
67static void gld${EMULATION_NAME}_after_open
68 PARAMS ((void));
69static void gld${EMULATION_NAME}_find_exp_assignment
70 PARAMS ((etree_type *));
252b5132
RH
71static void gld${EMULATION_NAME}_find_statement_assignment
72 PARAMS ((lang_statement_union_type *));
cde43e70
AM
73static void gld${EMULATION_NAME}_before_allocation
74 PARAMS ((void));
04925e1e
AM
75static boolean gld${EMULATION_NAME}_open_dynamic_archive
76 PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *));
cde43e70
AM
77static lang_output_section_statement_type *output_rel_find
78 PARAMS ((void));
73810896
AM
79static asection *output_prev_sec_find
80 PARAMS ((lang_output_section_statement_type *));
252b5132
RH
81static boolean gld${EMULATION_NAME}_place_orphan
82 PARAMS ((lang_input_statement_type *, asection *));
73d074b4
DJ
83static void gld${EMULATION_NAME}_finish
84 PARAMS ((void));
cde43e70
AM
85static char *gld${EMULATION_NAME}_get_script
86 PARAMS ((int *isfile));
252b5132 87
41392f03
AM
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
f813923c 96# Functions in this file can be overridden by setting the LDEMUL_* shell
41392f03
AM
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${EMULATION_NAME}.c <<EOF
104
252b5132 105static void
41392f03 106gld${EMULATION_NAME}_before_parse ()
252b5132 107{
86af25fe
L
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/:.*//'`;
252b5132
RH
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
41392f03
AM
121EOF
122fi
123
124cat >>e${EMULATION_NAME}.c <<EOF
252b5132
RH
125
126/* These variables are required to pass information back and forth
127 between after_open and check_needed and stat_needed and vercheck. */
128
129static struct bfd_link_needed_list *global_needed;
130static struct stat global_stat;
131static boolean global_found;
132static struct bfd_link_needed_list *global_vercheck_needed;
133static boolean global_vercheck_failed;
134
252b5132 135
04925e1e
AM
136/* On Linux, it's possible to have different versions of the same
137 shared library linked against different versions of libc. The
138 dynamic linker somehow tags which libc version to use in
139 /etc/ld.so.cache, and, based on the libc that it sees in the
140 executable, chooses which version of the shared library to use.
252b5132 141
04925e1e
AM
142 We try to do a similar check here by checking whether this shared
143 library needs any other shared libraries which may conflict with
144 libraries we have already included in the link. If it does, we
145 skip it, and try to find another shared library farther on down the
146 link path.
252b5132 147
04925e1e
AM
148 This is called via lang_for_each_input_file.
149 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
f813923c 150 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
04925e1e 151 a conflicting version. */
252b5132 152
04925e1e
AM
153static void
154gld${EMULATION_NAME}_vercheck (s)
155 lang_input_statement_type *s;
156{
1c9acd94 157 const char *soname;
04925e1e 158 struct bfd_link_needed_list *l;
252b5132 159
04925e1e
AM
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;
252b5132 165
04925e1e
AM
166 soname = bfd_elf_get_dt_soname (s->the_bfd);
167 if (soname == NULL)
fed2999d 168 soname = lbasename (bfd_get_filename (s->the_bfd));
04925e1e
AM
169
170 for (l = global_vercheck_needed; l != NULL; l = l->next)
171 {
172 const char *suffix;
173
1c9acd94 174 if (strcmp (soname, l->name) == 0)
04925e1e
AM
175 {
176 /* Probably can't happen, but it's an easy check. */
177 continue;
252b5132
RH
178 }
179
04925e1e 180 if (strchr (l->name, '/') != NULL)
252b5132
RH
181 continue;
182
04925e1e
AM
183 suffix = strstr (l->name, ".so.");
184 if (suffix == NULL)
185 continue;
186
187 suffix += sizeof ".so." - 1;
188
1c9acd94 189 if (strncmp (soname, l->name, suffix - l->name) == 0)
04925e1e
AM
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 }
252b5132
RH
199 }
200}
201
252b5132 202
04925e1e
AM
203/* See if an input file matches a DT_NEEDED entry by running stat on
204 the file. */
205
206static void
207gld${EMULATION_NAME}_stat_needed (s)
208 lang_input_statement_type *s;
252b5132 209{
04925e1e
AM
210 struct stat st;
211 const char *suffix;
212 const char *soname;
252b5132 213
04925e1e
AM
214 if (global_found)
215 return;
216 if (s->the_bfd == NULL)
217 return;
218
219 if (bfd_stat (s->the_bfd, &st) != 0)
252b5132 220 {
04925e1e
AM
221 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
222 return;
223 }
252b5132 224
04925e1e
AM
225 if (st.st_dev == global_stat.st_dev
226 && st.st_ino == global_stat.st_ino)
227 {
228 global_found = true;
229 return;
230 }
252b5132 231
04925e1e
AM
232 /* We issue a warning if it looks like we are including two
233 different versions of the same shared library. For example,
234 there may be a problem if -lc picks up libc.so.6 but some other
235 shared library has a DT_NEEDED entry of libc.so.5. This is a
f813923c 236 heuristic test, and it will only work if the name looks like
04925e1e
AM
237 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
238 If we really want to issue warnings about mixing version numbers
239 of shared libraries, we need to find a better way. */
252b5132 240
04925e1e
AM
241 if (strchr (global_needed->name, '/') != NULL)
242 return;
243 suffix = strstr (global_needed->name, ".so.");
244 if (suffix == NULL)
245 return;
246 suffix += sizeof ".so." - 1;
252b5132 247
04925e1e
AM
248 soname = bfd_elf_get_dt_soname (s->the_bfd);
249 if (soname == NULL)
fed2999d 250 soname = lbasename (s->filename);
252b5132 251
cde43e70 252 if (strncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
04925e1e 253 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
1c9acd94 254 global_needed->name, global_needed->by, soname);
252b5132
RH
255}
256
04925e1e 257
252b5132
RH
258/* This function is called for each possible name for a dynamic object
259 named by a DT_NEEDED entry. The FORCE parameter indicates whether
260 to skip the check for a conflicting version. */
261
262static boolean
263gld${EMULATION_NAME}_try_needed (name, force)
264 const char *name;
265 int force;
266{
267 bfd *abfd;
ec4eb78a 268 const char *soname;
252b5132
RH
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 {
cde43e70 275 bfd_close (abfd);
252b5132
RH
276 return false;
277 }
278 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
279 {
cde43e70 280 bfd_close (abfd);
252b5132
RH
281 return false;
282 }
283
c4bb8067
L
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
252b5132
RH
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 {
cde43e70 310 bfd_close (abfd);
252b5132
RH
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 {
cde43e70 335 bfd_close (abfd);
252b5132
RH
336 return false;
337 }
338 }
339
340EOF
341 ;;
342esac
343cat >>e${EMULATION_NAME}.c <<EOF
344 }
345 }
346
347 /* We've found a dynamic object matching the DT_NEEDED entry. */
348
04925e1e
AM
349 /* We have already checked that there is no other input file of the
350 same name. We must now check again that we are not including the
351 same file twice. We need to do this because on many systems
352 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
353 reference libc.so.1. If we have already included libc.so, we
354 don't want to include libc.so.1 if they are the same file, and we
355 can only check that using stat. */
356
357 if (bfd_stat (abfd, &global_stat) != 0)
358 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
ec4eb78a
L
359
360 /* First strip off everything before the last '/'. */
fed2999d 361 soname = lbasename (abfd->filename);
ec4eb78a
L
362
363 if (trace_file_tries)
364 info_msg (_("found %s at %s\n"), soname, name);
365
04925e1e
AM
366 global_found = false;
367 lang_for_each_input_file (gld${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
41392f03 375 /* Tell the ELF backend that we don't want the output file to have a
04925e1e
AM
376 DT_NEEDED entry for this file. */
377 bfd_elf_set_dt_needed_name (abfd, "");
378
04925e1e
AM
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. */
ec4eb78a 382 bfd_elf_set_dt_needed_soname (abfd, soname);
04925e1e
AM
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${EMULATION_NAME}_search_needed (path, name, force)
396 const char *path;
397 const char *name;
398 int force;
399{
400 const char *s;
401 size_t len;
402
cc5ce052
UD
403 if (name[0] == '/')
404 return gld${EMULATION_NAME}_try_needed (name, force);
405
04925e1e
AM
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} "*)
482e8b32
DB
445 case ${target} in
446 *-*-linux-gnu*)
447 cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
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
482e8b32 451 only meaningful on Linux. */
04925e1e
AM
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;
252b5132 507
04925e1e
AM
508 if (len > 0)
509 b[len] = '\0';
510 else
511 {
512 free (b);
513 b = NULL;
514 }
252b5132 515
04925e1e 516 fclose (f);
252b5132 517
04925e1e
AM
518 ld_so_conf = b;
519 }
49e56c49 520
04925e1e
AM
521 initialized = true;
522 }
49e56c49 523
04925e1e
AM
524 if (ld_so_conf == NULL)
525 return false;
252b5132 526
04925e1e 527 return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force);
252b5132
RH
528}
529
04925e1e 530EOF
482e8b32
DB
531 # Linux
532 ;;
533 esac
04925e1e
AM
534 esac
535fi
536cat >>e${EMULATION_NAME}.c <<EOF
537
252b5132
RH
538/* See if an input file matches a DT_NEEDED entry by name. */
539
540static void
541gld${EMULATION_NAME}_check_needed (s)
542 lang_input_statement_type *s;
543{
544 if (global_found)
545 return;
546
577a0623 547 if (s->filename != NULL)
252b5132 548 {
577a0623
AM
549 const char *f;
550
551 if (strcmp (s->filename, global_needed->name) == 0)
552 {
553 global_found = true;
554 return;
555 }
556
557 if (s->search_dirs_flag)
558 {
559 f = strrchr (s->filename, '/');
560 if (f != NULL
561 && strcmp (f + 1, global_needed->name) == 0)
562 {
563 global_found = true;
564 return;
565 }
566 }
252b5132
RH
567 }
568
569 if (s->the_bfd != NULL)
570 {
571 const char *soname;
572
573 soname = bfd_elf_get_dt_soname (s->the_bfd);
574 if (soname != NULL
575 && strcmp (soname, global_needed->name) == 0)
576 {
577 global_found = true;
578 return;
579 }
580 }
252b5132
RH
581}
582
41392f03
AM
583EOF
584
585if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
586cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
587
588/* This is called after all the input files have been opened. */
252b5132
RH
589
590static void
04925e1e 591gld${EMULATION_NAME}_after_open ()
252b5132 592{
04925e1e 593 struct bfd_link_needed_list *needed, *l;
252b5132 594
04925e1e
AM
595 /* We only need to worry about this when doing a final link. */
596 if (link_info.relocateable || link_info.shared)
252b5132
RH
597 return;
598
04925e1e
AM
599 /* Get the list of files which appear in DT_NEEDED entries in
600 dynamic objects included in the link (often there will be none).
601 For each such file, we want to track down the corresponding
602 library, and include the symbol table in the link. This is what
603 the runtime dynamic linker will do. Tracking the files down here
604 permits one dynamic object to include another without requiring
605 special action by the person doing the link. Note that the
606 needed list can actually grow while we are stepping through this
607 loop. */
608 needed = bfd_elf_get_needed_list (output_bfd, &link_info);
609 for (l = needed; l != NULL; l = l->next)
252b5132 610 {
04925e1e
AM
611 struct bfd_link_needed_list *ll;
612 int force;
252b5132 613
04925e1e
AM
614 /* If we've already seen this file, skip it. */
615 for (ll = needed; ll != l; ll = ll->next)
616 if (strcmp (ll->name, l->name) == 0)
617 break;
618 if (ll != l)
619 continue;
252b5132 620
04925e1e
AM
621 /* See if this file was included in the link explicitly. */
622 global_needed = l;
623 global_found = false;
624 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
625 if (global_found)
626 continue;
252b5132 627
ec4eb78a
L
628 if (trace_file_tries)
629 info_msg (_("%s needed by %B\n"), l->name, l->by);
630
04925e1e
AM
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
ec4eb78a
L
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.
252b5132 638
04925e1e
AM
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${EMULATION_NAME}_vercheck comment. */
642 for (force = 0; force < 2; force++)
643 {
04925e1e
AM
644 size_t len;
645 search_dirs_type *search;
6dd8c765
L
646EOF
647if [ "x${host}" = "x${target}" ] ; then
648 case " ${EMULATION_LIBPATH} " in
649 *" ${EMULATION_NAME} "*)
650cat >>e${EMULATION_NAME}.c <<EOF
dcb0bd0e 651 const char *lib_path;
6dd8c765
L
652 struct bfd_link_needed_list *rp;
653 int found;
654EOF
655 ;;
656 esac
657fi
658cat >>e${EMULATION_NAME}.c <<EOF
252b5132 659
04925e1e
AM
660 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
661 l->name, force))
662 break;
dcb0bd0e
L
663EOF
664if [ "x${host}" = "x${target}" ] ; then
665 case " ${EMULATION_LIBPATH} " in
666 *" ${EMULATION_NAME} "*)
667cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
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 }
04925e1e
AM
679 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
680 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force))
681 break;
ec4eb78a
L
682
683 found = 0;
6dd8c765
L
684 rp = bfd_elf_get_runpath_list (output_bfd, &link_info);
685 for (; !found && rp != NULL; rp = rp->next)
ec4eb78a
L
686 {
687 found = (rp->by == l->by
688 && gld${EMULATION_NAME}_search_needed (rp->name,
689 l->name,
690 force));
691 }
692 if (found)
693 break;
694
04925e1e
AM
695EOF
696 ;;
697 esac
698fi
699cat >>e${EMULATION_NAME}.c <<EOF
700 len = strlen (l->name);
701 for (search = search_head; search != NULL; search = search->next)
702 {
703 char *filename;
252b5132 704
04925e1e
AM
705 if (search->cmdline)
706 continue;
707 filename = (char *) xmalloc (strlen (search->name) + len + 2);
708 sprintf (filename, "%s/%s", search->name, l->name);
709 if (gld${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} "*)
482e8b32
DB
719 case ${target} in
720 *-*-linux-gnu*)
721 cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
722 if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
723 break;
724EOF
482e8b32
DB
725 # Linux
726 ;;
727 esac
04925e1e
AM
728 ;;
729 esac
730fi
731cat >>e${EMULATION_NAME}.c <<EOF
732 }
252b5132 733
04925e1e
AM
734 if (force < 2)
735 continue;
252b5132 736
e374f1d9 737 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
04925e1e
AM
738 l->name, l->by);
739 }
740}
252b5132 741
41392f03
AM
742EOF
743fi
744
745cat >>e${EMULATION_NAME}.c <<EOF
252b5132 746
04925e1e 747/* Look through an expression for an assignment statement. */
252b5132 748
04925e1e
AM
749static void
750gld${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)
252b5132 756 {
04925e1e
AM
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;
252b5132 762
04925e1e
AM
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)
252b5132 774 {
04925e1e
AM
775 if (! (bfd_elf${ELFSIZE}_record_link_assignment
776 (output_bfd, &link_info, exp->assign.dst,
777 exp->type.node_class == etree_provide ? true : false)))
778 einfo ("%P%F: failed to record assignment to %s: %E\n",
779 exp->assign.dst);
252b5132 780 }
04925e1e
AM
781 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
782 break;
252b5132 783
04925e1e
AM
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;
252b5132 788
04925e1e
AM
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${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
793 break;
252b5132 794
04925e1e
AM
795 case etree_unary:
796 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
797 break;
252b5132 798
04925e1e
AM
799 default:
800 break;
252b5132
RH
801 }
802}
803
04925e1e
AM
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
41392f03
AM
818EOF
819
820if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
57e6abd2
AO
821 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
822 ELF_INTERPRETER_SET_DEFAULT="
823 if (sinterp != NULL)
824 {
825 sinterp->contents = ${ELF_INTERPRETER_NAME};
826 sinterp->_raw_size = strlen (sinterp->contents) + 1;
827 }
828
829"
830 else
831 ELF_INTERPRETER_SET_DEFAULT=
832 fi
41392f03 833cat >>e${EMULATION_NAME}.c <<EOF
04925e1e 834
252b5132
RH
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${ELFSIZE}_size_dynamic_sections
855 (output_bfd, command_line.soname, rpath,
605d9b3a 856 command_line.filter_shlib,
252b5132
RH
857 (const char * const *) command_line.auxiliary_filters,
858 &link_info, &sinterp, lang_elf_version_info)))
859 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
57e6abd2 860${ELF_INTERPRETER_SET_DEFAULT}
252b5132
RH
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
41392f03
AM
909EOF
910fi
911
912if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
913cat >>e${EMULATION_NAME}.c <<EOF
252b5132 914
04925e1e
AM
915/* Try to open a dynamic archive. This is where we know that ELF
916 dynamic libraries have an extension of .so (or .sl on oddball systems
917 like hpux). */
918
919static boolean
920gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
921 const char *arch;
922 search_dirs_type *search;
923 lang_input_statement_type *entry;
252b5132 924{
04925e1e
AM
925 const char *filename;
926 char *string;
252b5132 927
04925e1e
AM
928 if (! entry->is_archive)
929 return false;
252b5132 930
04925e1e 931 filename = entry->filename;
252b5132 932
04925e1e
AM
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))
252b5132 955 {
04925e1e
AM
956 free (string);
957 return false;
958 }
252b5132 959
04925e1e 960 entry->filename = string;
252b5132 961
04925e1e
AM
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.
252b5132 971
04925e1e
AM
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 {
04925e1e 978 ASSERT (entry->is_archive && entry->search_dirs_flag);
252b5132 979
04925e1e 980 /* Rather than duplicating the logic above. Just use the
1c9acd94 981 filename we recorded earlier. */
04925e1e 982
fed2999d 983 filename = lbasename (entry->filename);
1c9acd94 984 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
04925e1e
AM
985 }
986
987 return true;
988}
989
41392f03
AM
990EOF
991fi
cde43e70
AM
992
993if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
41392f03
AM
994cat >>e${EMULATION_NAME}.c <<EOF
995
996/* A variant of lang_output_section_find. Used by place_orphan. */
04925e1e 997
04925e1e
AM
998static lang_output_section_statement_type *
999output_rel_find ()
1000{
1001 lang_statement_union_type *u;
1002 lang_output_section_statement_type *lookup;
1003
1004 for (u = lang_output_section_statement.head;
1005 u != (lang_statement_union_type *) NULL;
1006 u = lookup->next)
1007 {
1008 lookup = &u->output_section_statement;
1009 if (strncmp (".rel", lookup->name, 4) == 0
1010 && lookup->bfd_section != NULL
1011 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1012 {
1013 return lookup;
1014 }
252b5132 1015 }
04925e1e 1016 return (lang_output_section_statement_type *) NULL;
252b5132
RH
1017}
1018
95500e1c
JJ
1019/* Find the last output section before given output statement.
1020 Used by place_orphan. */
1021
1022static asection *
1023output_prev_sec_find (os)
1024 lang_output_section_statement_type *os;
1025{
1026 asection *s = (asection *) NULL;
1027 lang_statement_union_type *u;
1028 lang_output_section_statement_type *lookup;
1029
1030 for (u = lang_output_section_statement.head;
1031 u != (lang_statement_union_type *) NULL;
1032 u = lookup->next)
1033 {
1034 lookup = &u->output_section_statement;
1035 if (lookup == os)
cde43e70
AM
1036 return s;
1037
1038 if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL)
95500e1c
JJ
1039 s = lookup->bfd_section;
1040 }
1041
cde43e70 1042 return NULL;
95500e1c
JJ
1043}
1044
252b5132
RH
1045/* Place an orphan section. We use this to put random SHF_ALLOC
1046 sections in the right segment. */
1047
41392f03 1048struct orphan_save {
6a345e87 1049 lang_output_section_statement_type *os;
5ba47421 1050 asection **section;
6a345e87
AM
1051 lang_statement_union_type **stmt;
1052};
252b5132 1053
252b5132
RH
1054static boolean
1055gld${EMULATION_NAME}_place_orphan (file, s)
1056 lang_input_statement_type *file;
1057 asection *s;
1058{
aea4bd9d
AM
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;
c940e6fc 1065 static struct orphan_save hold_sdata;
f9989030 1066 static int count = 1;
6a345e87 1067 struct orphan_save *place;
71bfc0ae 1068 lang_statement_list_type *old;
252b5132
RH
1069 lang_statement_list_type add;
1070 etree_type *address;
a854a4a7 1071 const char *secname;
252b5132 1072 const char *outsecname;
a854a4a7 1073 const char *ps = NULL;
252b5132
RH
1074 lang_output_section_statement_type *os;
1075
aea4bd9d
AM
1076 secname = bfd_get_section_name (s->owner, s);
1077
577a0623 1078 if (! config.unique_orphan_sections && ! unique_section_p (secname))
252b5132 1079 {
6d02a667 1080 /* Look through the script to see where to place this section. */
a854a4a7
AM
1081 os = lang_output_section_find (secname);
1082
1083 if (os != NULL
0f33d40b
AM
1084 && (os->bfd_section == NULL
1085 || ((s->flags ^ os->bfd_section->flags)
1086 & (SEC_LOAD | SEC_ALLOC)) == 0))
a854a4a7 1087 {
0f33d40b 1088 /* We already have an output section statement with this
22af9fd3 1089 name, and its bfd section, if any, has compatible flags. */
39dcfe18 1090 lang_add_section (&os->children, s, os, file);
a854a4a7
AM
1091 return true;
1092 }
252b5132
RH
1093 }
1094
aea4bd9d
AM
1095 if (hold_text.os == NULL)
1096 hold_text.os = lang_output_section_find (".text");
252b5132
RH
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
6a345e87 1103 && hold_text.os != NULL)
252b5132 1104 {
39dcfe18 1105 lang_add_section (&hold_text.os->children, s, hold_text.os, file);
252b5132
RH
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. */
aea4bd9d
AM
1114#define HAVE_SECTION(hold, name) \
1115(hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
1116
1d475d82 1117 if ((s->flags & SEC_EXCLUDE) != 0 && !link_info.relocateable)
22af9fd3
AM
1118 {
1119 if (s->output_section == NULL)
1120 s->output_section = bfd_abs_section_ptr;
1121 return true;
1122 }
71bfc0ae
AM
1123
1124 place = NULL;
1125 if ((s->flags & SEC_ALLOC) == 0)
1126 ;
252b5132 1127 else if ((s->flags & SEC_LOAD) != 0
577a0623 1128 && strncmp (secname, ".note", 5) == 0
aea4bd9d 1129 && HAVE_SECTION (hold_interp, ".interp"))
6a345e87 1130 place = &hold_interp;
252b5132 1131 else if ((s->flags & SEC_HAS_CONTENTS) == 0
aea4bd9d 1132 && HAVE_SECTION (hold_bss, ".bss"))
6a345e87 1133 place = &hold_bss;
c940e6fc
JW
1134 else if ((s->flags & SEC_SMALL_DATA) != 0
1135 && HAVE_SECTION (hold_sdata, ".sdata"))
1136 place = &hold_sdata;
252b5132 1137 else if ((s->flags & SEC_READONLY) == 0
aea4bd9d 1138 && HAVE_SECTION (hold_data, ".data"))
6a345e87 1139 place = &hold_data;
252b5132 1140 else if (strncmp (secname, ".rel", 4) == 0
aea4bd9d
AM
1141 && (hold_rel.os != NULL
1142 || (hold_rel.os = output_rel_find ()) != NULL))
db6751f2
JJ
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 }
71bfc0ae 1162 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == SEC_READONLY
aea4bd9d 1163 && HAVE_SECTION (hold_rodata, ".rodata"))
6a345e87 1164 place = &hold_rodata;
71bfc0ae 1165 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == (SEC_CODE | SEC_READONLY)
6a345e87
AM
1166 && hold_text.os != NULL)
1167 place = &hold_text;
252b5132 1168
aea4bd9d
AM
1169#undef HAVE_SECTION
1170
252b5132
RH
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
f813923c 1173 loadable or allocatable characteristics. */
252b5132
RH
1174 outsecname = secname;
1175 if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
b3ea3584
AM
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 }
252b5132 1183
71bfc0ae
AM
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. */
5ba47421 1191 if (place != NULL)
252b5132 1192 {
5ba47421
AM
1193 stat_ptr = &add;
1194 lang_list_init (stat_ptr);
71bfc0ae 1195 }
5ba47421 1196
71bfc0ae
AM
1197 if (config.build_constructors)
1198 {
5ba47421
AM
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++)
3882b010 1202 if (! ISALNUM (*ps) && *ps != '_')
5ba47421 1203 break;
71bfc0ae 1204 if (*ps == '\0')
5ba47421
AM
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 }
252b5132
RH
1215 }
1216
01cc8ff8 1217 if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
252b5132 1218 address = exp_intop ((bfd_vma) 0);
01cc8ff8
AM
1219 else
1220 address = NULL;
252b5132 1221
aea4bd9d
AM
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);
252b5132 1227
39dcfe18 1228 lang_add_section (&os->children, s, os, file);
252b5132 1229
20d04697
L
1230 lang_leave_output_section_statement
1231 ((bfd_vma) 0, "*default*",
ee3cc2e2 1232 (struct lang_output_section_phdr_list *) NULL, NULL);
20d04697 1233
71bfc0ae 1234 if (config.build_constructors && *ps == '\0')
252b5132 1235 {
71bfc0ae 1236 char *symname;
252b5132 1237
71bfc0ae
AM
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;
252b5132 1242
71bfc0ae
AM
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 }
5ba47421 1248
71bfc0ae
AM
1249 /* Restore the global list pointer. */
1250 stat_ptr = old;
1251
1252 if (place != NULL)
1253 {
cde43e70 1254 asection *snew, **pps;
5ba47421
AM
1255
1256 snew = os->bfd_section;
95500e1c 1257
cde43e70
AM
1258 /* Shuffle the bfd section list to make the output file look
1259 neater. This is really only cosmetic. */
1260 if (place->section == NULL)
5ba47421 1261 {
cde43e70 1262 asection *bfd_section = place->os->bfd_section;
5ba47421 1263
cde43e70
AM
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 {
3dfe7a8c 1277 /* Unlink the section. */
5ba47421
AM
1278 for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
1279 ;
3dfe7a8c 1280 bfd_section_list_remove (output_bfd, pps);
5ba47421
AM
1281
1282 /* Now tack it on to the "place->os" section list. */
3dfe7a8c 1283 bfd_section_list_insert (output_bfd, place->section, snew);
5ba47421 1284 }
5ba47421 1285
cde43e70
AM
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. */
ed15ac6a 1299 if (add.head != NULL)
01cc8ff8 1300 {
ed15ac6a
AM
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 }
71bfc0ae 1313
ed15ac6a
AM
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;
71bfc0ae 1318
ed15ac6a
AM
1319 /* Save the end of this list. */
1320 place->stmt = add.tail;
1321 }
6a345e87 1322 }
252b5132
RH
1323
1324 return true;
1325}
c56feb2b
AM
1326EOF
1327fi
1328
1329if test x"$LDEMUL_FINISH" != xgld"$EMULATION_NAME"_finish; then
1330cat >>e${EMULATION_NAME}.c <<EOF
252b5132 1331
73d074b4
DJ
1332static void
1333gld${EMULATION_NAME}_finish ()
1334{
65765700 1335 if (bfd_elf${ELFSIZE}_discard_info (output_bfd, &link_info))
73d074b4 1336 {
e3dc8847
HPN
1337 lang_reset_memory_regions ();
1338
73d074b4
DJ
1339 /* Resize the sections. */
1340 lang_size_sections (stat_ptr->head, abs_output_section,
ca0b5847 1341 &stat_ptr->head, 0, (bfd_vma) 0, NULL);
73d074b4
DJ
1342
1343 /* Redo special stuff. */
1344 ldemul_after_allocation ();
1345
1346 /* Do the assignments again. */
1347 lang_do_assignments (stat_ptr->head, abs_output_section,
2c382fb6 1348 (fill_type *) 0, (bfd_vma) 0);
73d074b4
DJ
1349 }
1350}
41392f03
AM
1351EOF
1352fi
1353
1354if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
1355cat >>e${EMULATION_NAME}.c <<EOF
252b5132
RH
1356
1357static char *
41392f03 1358gld${EMULATION_NAME}_get_script (isfile)
252b5132
RH
1359 int *isfile;
1360EOF
1361
1362if test -n "$COMPILE_IN"
1363then
1364# Scripts compiled in.
1365
1366# sed commands to quote an ld script as a C string.
597e2591 1367sc="-f stringify.sed"
252b5132
RH
1368
1369cat >>e${EMULATION_NAME}.c <<EOF
60bcf0fa 1370{
252b5132
RH
1371 *isfile = 0;
1372
1373 if (link_info.relocateable == true && config.build_constructors == true)
597e2591 1374 return
252b5132 1375EOF
597e2591
ILT
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${EMULATION_NAME}.c
61585df2 1381if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
597e2591
ILT
1382echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1383sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
db6751f2 1384fi
252b5132 1385if test -n "$GENERATE_SHLIB_SCRIPT" ; then
db6751f2
JJ
1386echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
1387sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
597e2591
ILT
1388echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
1389sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
252b5132 1390fi
db6751f2
JJ
1391echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
1392sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
597e2591
ILT
1393echo ' ; else return' >> e${EMULATION_NAME}.c
1394sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1395echo '; }' >> e${EMULATION_NAME}.c
252b5132
RH
1396
1397else
1398# Scripts read from the filesystem.
1399
1400cat >>e${EMULATION_NAME}.c <<EOF
60bcf0fa 1401{
252b5132
RH
1402 *isfile = 1;
1403
1404 if (link_info.relocateable == true && config.build_constructors == true)
1405 return "ldscripts/${EMULATION_NAME}.xu";
1406 else if (link_info.relocateable == true)
1407 return "ldscripts/${EMULATION_NAME}.xr";
1408 else if (!config.text_read_only)
1409 return "ldscripts/${EMULATION_NAME}.xbn";
1410 else if (!config.magic_demand_paged)
1411 return "ldscripts/${EMULATION_NAME}.xn";
1412 else if (link_info.shared)
1413 return "ldscripts/${EMULATION_NAME}.xs";
1414 else
1415 return "ldscripts/${EMULATION_NAME}.x";
1416}
252b5132 1417
3b108066 1418EOF
41392f03
AM
1419fi
1420fi
3b108066 1421
41392f03 1422if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
3b108066 1423
4b209b22 1424if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
3b108066 1425
e0ee487b
L
1426if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
1427cat >>e${EMULATION_NAME}.c <<EOF
1428 $PARSE_AND_LIST_PROLOGUE
1429EOF
1430fi
1431
e0ee487b
L
1432cat >>e${EMULATION_NAME}.c <<EOF
1433
1434#include "getopt.h"
1435
6c1439be
L
1436#define OPTION_DISABLE_NEW_DTAGS (400)
1437#define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
a1ab1d2a 1438#define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
65765700 1439#define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
6c1439be 1440
e0ee487b
L
1441static struct option longopts[] =
1442{
1443EOF
e0ee487b
L
1444
1445if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1446cat >>e${EMULATION_NAME}.c <<EOF
699845ef
L
1447 /* getopt allows abbreviations, so we do this to stop it from
1448 treating -d/-e as abbreviations for these options. */
6c1439be 1449 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
699845ef
L
1450 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1451 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
6c1439be 1452 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
65765700 1453 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
a1ab1d2a
UD
1454 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1455 {"Bgroup", no_argument, NULL, OPTION_GROUP},
e0ee487b
L
1456EOF
1457fi
1458
1459if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
1460cat >>e${EMULATION_NAME}.c <<EOF
1461 $PARSE_AND_LIST_LONGOPTS
1462EOF
1463fi
1464
e0ee487b
L
1465cat >>e${EMULATION_NAME}.c <<EOF
1466 {NULL, no_argument, NULL, 0}
1467};
1468
04925e1e 1469
4b209b22 1470static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
41392f03 1471
e0ee487b 1472static int
4b209b22 1473gld${EMULATION_NAME}_parse_args (argc, argv)
e0ee487b
L
1474 int argc;
1475 char ** argv;
1476{
4b209b22
AM
1477 int longind;
1478 int optc;
1479 static int prevoptind = -1;
e0ee487b
L
1480 int prevopterr = opterr;
1481 int wanterror;
e0ee487b 1482
4b209b22 1483 if (prevoptind != optind)
e0ee487b
L
1484 opterr = 0;
1485
4b209b22
AM
1486 wanterror = opterr;
1487 prevoptind = optind;
1488
41392f03
AM
1489 optc = getopt_long_only (argc, argv,
1490 "-${PARSE_AND_LIST_SHORTOPTS}z:", longopts,
1491 &longind);
e0ee487b
L
1492 opterr = prevopterr;
1493
1494 switch (optc)
1495 {
1496 default:
1497 if (wanterror)
1498 xexit (1);
4b209b22 1499 optind = prevoptind;
e0ee487b 1500 return 0;
6c1439be 1501
e0ee487b 1502EOF
e0ee487b
L
1503
1504if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1505cat >>e${EMULATION_NAME}.c <<EOF
6c1439be
L
1506 case OPTION_DISABLE_NEW_DTAGS:
1507 link_info.new_dtags = false;
1508 break;
1509
1510 case OPTION_ENABLE_NEW_DTAGS:
1511 link_info.new_dtags = true;
1512 break;
1513
65765700
JJ
1514 case OPTION_EH_FRAME_HDR:
1515 link_info.eh_frame_hdr = true;
1516 break;
1517
a1ab1d2a
UD
1518 case OPTION_GROUP:
1519 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
1520 /* Groups must be self-contained. */
1521 link_info.no_undefined = true;
1522 break;
1523
e0ee487b
L
1524 case 'z':
1525 if (strcmp (optarg, "initfirst") == 0)
1526 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
1527 else if (strcmp (optarg, "interpose") == 0)
1528 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
1529 else if (strcmp (optarg, "loadfltr") == 0)
1530 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
1531 else if (strcmp (optarg, "nodefaultlib") == 0)
1532 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
1533 else if (strcmp (optarg, "nodelete") == 0)
1534 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
1535 else if (strcmp (optarg, "nodlopen") == 0)
1536 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
1537 else if (strcmp (optarg, "nodump") == 0)
1538 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
1539 else if (strcmp (optarg, "now") == 0)
1540 {
1541 link_info.flags |= (bfd_vma) DF_BIND_NOW;
1542 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
1543 }
1544 else if (strcmp (optarg, "origin") == 0)
1545 {
1546 link_info.flags |= (bfd_vma) DF_ORIGIN;
1547 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
1548 }
a1ab1d2a
UD
1549 else if (strcmp (optarg, "defs") == 0)
1550 link_info.no_undefined = true;
aa713662
L
1551 else if (strcmp (optarg, "muldefs") == 0)
1552 link_info.allow_multiple_definition = true;
db6751f2
JJ
1553 else if (strcmp (optarg, "combreloc") == 0)
1554 link_info.combreloc = true;
1555 else if (strcmp (optarg, "nocombreloc") == 0)
1556 link_info.combreloc = false;
8bd621d8
AM
1557 else if (strcmp (optarg, "nocopyreloc") == 0)
1558 link_info.nocopyreloc = true;
e0ee487b 1559 /* What about the other Solaris -z options? FIXME. */
6c1439be 1560 break;
e0ee487b
L
1561EOF
1562fi
1563
1564if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
1565cat >>e${EMULATION_NAME}.c <<EOF
1566 $PARSE_AND_LIST_ARGS_CASES
1567EOF
1568fi
1569
e0ee487b
L
1570cat >>e${EMULATION_NAME}.c <<EOF
1571 }
1572
1573 return 1;
1574}
1575
41392f03
AM
1576EOF
1577fi
1578
4b209b22 1579if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
41392f03
AM
1580cat >>e${EMULATION_NAME}.c <<EOF
1581
4b209b22 1582static void gld${EMULATION_NAME}_list_options PARAMS ((FILE * file));
04925e1e 1583
e0ee487b 1584static void
4b209b22 1585gld${EMULATION_NAME}_list_options (file)
e0ee487b
L
1586 FILE * file;
1587{
1588EOF
e0ee487b
L
1589
1590if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1591cat >>e${EMULATION_NAME}.c <<EOF
a1ab1d2a 1592 fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
6c1439be
L
1593 fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
1594 fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
65765700 1595 fprintf (file, _(" --eh-frame-hdr\tCreate .eh_frame_hdr section\n"));
ec38dd05 1596 fprintf (file, _(" -z combreloc\t\tMerge dynamic relocs into one section and sort\n"));
a1ab1d2a 1597 fprintf (file, _(" -z defs\t\tDisallows undefined symbols\n"));
f813923c
HPN
1598 fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
1599 fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
e0ee487b 1600 fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
aa713662 1601 fprintf (file, _(" -z muldefs\t\tAllow multiple definitions\n"));
146e7110
AM
1602 fprintf (file, _(" -z nocombreloc\tDon't merge dynamic relocs into one section\n"));
1603 fprintf (file, _(" -z nocopyreloc\tDon't create copy relocs\n"));
e0ee487b
L
1604 fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
1605 fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
f813923c
HPN
1606 fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));
1607 fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n"));
e0ee487b 1608 fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n"));
73e87d70 1609 fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n\t\t\t at runtime\n"));
19e3be22 1610 fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n"));
e0ee487b
L
1611EOF
1612fi
1613
1614if test -n "$PARSE_AND_LIST_OPTIONS" ; then
1615cat >>e${EMULATION_NAME}.c <<EOF
1616 $PARSE_AND_LIST_OPTIONS
1617EOF
1618fi
1619
e0ee487b
L
1620cat >>e${EMULATION_NAME}.c <<EOF
1621}
1622EOF
e0ee487b
L
1623
1624if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
1625cat >>e${EMULATION_NAME}.c <<EOF
1626 $PARSE_AND_LIST_EPILOGUE
1627EOF
1628fi
41392f03
AM
1629fi
1630else
4b209b22 1631if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
41392f03 1632cat >>e${EMULATION_NAME}.c <<EOF
4b209b22 1633#define gld${EMULATION_NAME}_parse_args NULL
41392f03
AM
1634EOF
1635fi
4b209b22 1636if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
41392f03 1637cat >>e${EMULATION_NAME}.c <<EOF
4b209b22 1638#define gld${EMULATION_NAME}_list_options NULL
41392f03
AM
1639EOF
1640fi
1641fi
e0ee487b 1642
252b5132
RH
1643cat >>e${EMULATION_NAME}.c <<EOF
1644
60bcf0fa 1645struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
252b5132 1646{
41392f03
AM
1647 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
1648 ${LDEMUL_SYSLIB-syslib_default},
1649 ${LDEMUL_HLL-hll_default},
1650 ${LDEMUL_AFTER_PARSE-after_parse_default},
1651 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
1652 ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
1653 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
1654 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
1655 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
1656 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
252b5132
RH
1657 "${EMULATION_NAME}",
1658 "${OUTPUT_FORMAT}",
c56feb2b 1659 ${LDEMUL_FINISH-gld${EMULATION_NAME}_finish},
41392f03
AM
1660 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
1661 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
1662 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
1663 ${LDEMUL_SET_SYMBOLS-NULL},
4b209b22 1664 ${LDEMUL_PARSE_ARGS-gld${EMULATION_NAME}_parse_args},
41392f03 1665 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
4b209b22 1666 ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
41392f03
AM
1667 ${LDEMUL_RECOGNIZED_FILE-NULL},
1668 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
fac1652d 1669 ${LDEMUL_NEW_VERS_PATTERN-NULL}
252b5132
RH
1670};
1671EOF