* stabsread.c (read_member_functions): Remove skip code for duplicate
[deliverable/binutils-gdb.git] / ld / emultempl / elf32.em
CommitLineData
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)
1c9acd94 168 soname = basename (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${EMULATION_NAME}_stat_needed (s)
208 lang_input_statement_type *s;
252b5132 209{
04925e1e
AM
210 struct stat st;
211 const char *suffix;
212 const char *soname;
252b5132 213
04925e1e
AM
214 if (global_found)
215 return;
216 if (s->the_bfd == NULL)
217 return;
218
219 if (bfd_stat (s->the_bfd, &st) != 0)
252b5132 220 {
04925e1e
AM
221 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
222 return;
223 }
252b5132 224
04925e1e
AM
225 if (st.st_dev == global_stat.st_dev
226 && st.st_ino == global_stat.st_ino)
227 {
228 global_found = true;
229 return;
230 }
252b5132 231
04925e1e
AM
232 /* We issue a warning if it looks like we are including two
233 different versions of the same shared library. For example,
234 there may be a problem if -lc picks up libc.so.6 but some other
235 shared library has a DT_NEEDED entry of libc.so.5. This is a
f813923c 236 heuristic test, and it will only work if the name looks like
04925e1e
AM
237 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
238 If we really want to issue warnings about mixing version numbers
239 of shared libraries, we need to find a better way. */
252b5132 240
04925e1e
AM
241 if (strchr (global_needed->name, '/') != NULL)
242 return;
243 suffix = strstr (global_needed->name, ".so.");
244 if (suffix == NULL)
245 return;
246 suffix += sizeof ".so." - 1;
252b5132 247
04925e1e
AM
248 soname = bfd_elf_get_dt_soname (s->the_bfd);
249 if (soname == NULL)
1c9acd94 250 soname = basename (s->filename);
252b5132 251
cde43e70 252 if (strncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
04925e1e 253 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
1c9acd94 254 global_needed->name, global_needed->by, soname);
252b5132
RH
255}
256
04925e1e 257
252b5132
RH
258/* This function is called for each possible name for a dynamic object
259 named by a DT_NEEDED entry. The FORCE parameter indicates whether
260 to skip the check for a conflicting version. */
261
262static boolean
263gld${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
284 /* Check whether this object would include any conflicting library
285 versions. If FORCE is set, then we skip this check; we use this
286 the second time around, if we couldn't find any compatible
287 instance of the shared library. */
288
289 if (! force)
290 {
291 struct bfd_link_needed_list *needed;
292
293 if (! bfd_elf_get_bfd_needed_list (abfd, &needed))
294 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
295
296 if (needed != NULL)
297 {
298 global_vercheck_needed = needed;
299 global_vercheck_failed = false;
300 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
301 if (global_vercheck_failed)
302 {
cde43e70 303 bfd_close (abfd);
252b5132
RH
304 /* Return false to force the caller to move on to try
305 another file on the search path. */
306 return false;
307 }
308
309 /* But wait! It gets much worse. On Linux, if a shared
310 library does not use libc at all, we are supposed to skip
311 it the first time around in case we encounter a shared
312 library later on with the same name which does use the
313 version of libc that we want. This is much too horrible
314 to use on any system other than Linux. */
315
316EOF
317case ${target} in
318 *-*-linux-gnu*)
319 cat >>e${EMULATION_NAME}.c <<EOF
320 {
321 struct bfd_link_needed_list *l;
322
323 for (l = needed; l != NULL; l = l->next)
324 if (strncmp (l->name, "libc.so", 7) == 0)
325 break;
326 if (l == NULL)
327 {
cde43e70 328 bfd_close (abfd);
252b5132
RH
329 return false;
330 }
331 }
332
333EOF
334 ;;
335esac
336cat >>e${EMULATION_NAME}.c <<EOF
337 }
338 }
339
340 /* We've found a dynamic object matching the DT_NEEDED entry. */
341
04925e1e
AM
342 /* We have already checked that there is no other input file of the
343 same name. We must now check again that we are not including the
344 same file twice. We need to do this because on many systems
345 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
346 reference libc.so.1. If we have already included libc.so, we
347 don't want to include libc.so.1 if they are the same file, and we
348 can only check that using stat. */
349
350 if (bfd_stat (abfd, &global_stat) != 0)
351 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
ec4eb78a
L
352
353 /* First strip off everything before the last '/'. */
1c9acd94 354 soname = basename (abfd->filename);
ec4eb78a
L
355
356 if (trace_file_tries)
357 info_msg (_("found %s at %s\n"), soname, name);
358
04925e1e
AM
359 global_found = false;
360 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
361 if (global_found)
362 {
363 /* Return true to indicate that we found the file, even though
364 we aren't going to do anything with it. */
365 return true;
366 }
367
41392f03 368 /* Tell the ELF backend that we don't want the output file to have a
04925e1e
AM
369 DT_NEEDED entry for this file. */
370 bfd_elf_set_dt_needed_name (abfd, "");
371
c2a1a436
DB
372 /* Previos basename call was clobbered in lang_for_each_input_file. */
373 soname = basename (abfd->filename);
374
04925e1e
AM
375 /* Tell the ELF backend that the output file needs a DT_NEEDED
376 entry for this file if it is used to resolve the reference in
377 a regular object. */
ec4eb78a 378 bfd_elf_set_dt_needed_soname (abfd, soname);
04925e1e
AM
379
380 /* Add this file into the symbol table. */
381 if (! bfd_link_add_symbols (abfd, &link_info))
382 einfo ("%F%B: could not read symbols: %E\n", abfd);
383
384 return true;
385}
386
387
388/* Search for a needed file in a path. */
389
390static boolean
391gld${EMULATION_NAME}_search_needed (path, name, force)
392 const char *path;
393 const char *name;
394 int force;
395{
396 const char *s;
397 size_t len;
398
cc5ce052
UD
399 if (name[0] == '/')
400 return gld${EMULATION_NAME}_try_needed (name, force);
401
04925e1e
AM
402 if (path == NULL || *path == '\0')
403 return false;
404 len = strlen (name);
405 while (1)
406 {
407 char *filename, *sset;
408
409 s = strchr (path, ':');
410 if (s == NULL)
411 s = path + strlen (path);
412
413 filename = (char *) xmalloc (s - path + len + 2);
414 if (s == path)
415 sset = filename;
416 else
417 {
418 memcpy (filename, path, s - path);
419 filename[s - path] = '/';
420 sset = filename + (s - path) + 1;
421 }
422 strcpy (sset, name);
423
424 if (gld${EMULATION_NAME}_try_needed (filename, force))
425 return true;
426
427 free (filename);
428
429 if (*s == '\0')
430 break;
431 path = s + 1;
432 }
433
434 return false;
435}
436
437EOF
438if [ "x${host}" = "x${target}" ] ; then
439 case " ${EMULATION_LIBPATH} " in
440 *" ${EMULATION_NAME} "*)
482e8b32
DB
441 case ${target} in
442 *-*-linux-gnu*)
443 cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
444
445/* For a native linker, check the file /etc/ld.so.conf for directories
446 in which we may find shared libraries. /etc/ld.so.conf is really
482e8b32 447 only meaningful on Linux. */
04925e1e
AM
448
449static boolean gld${EMULATION_NAME}_check_ld_so_conf
450 PARAMS ((const char *, int));
451
452static boolean
453gld${EMULATION_NAME}_check_ld_so_conf (name, force)
454 const char *name;
455 int force;
456{
457 static boolean initialized;
458 static char *ld_so_conf;
459
460 if (! initialized)
461 {
462 FILE *f;
463
464 f = fopen ("/etc/ld.so.conf", FOPEN_RT);
465 if (f != NULL)
466 {
467 char *b;
468 size_t len, alloc;
469 int c;
470
471 len = 0;
472 alloc = 100;
473 b = (char *) xmalloc (alloc);
474
475 while ((c = getc (f)) != EOF)
476 {
477 if (len + 1 >= alloc)
478 {
479 alloc *= 2;
480 b = (char *) xrealloc (b, alloc);
481 }
482 if (c != ':'
483 && c != ' '
484 && c != '\t'
485 && c != '\n'
486 && c != ',')
487 {
488 b[len] = c;
489 ++len;
490 }
491 else
492 {
493 if (len > 0 && b[len - 1] != ':')
494 {
495 b[len] = ':';
496 ++len;
497 }
498 }
499 }
500
501 if (len > 0 && b[len - 1] == ':')
502 --len;
252b5132 503
04925e1e
AM
504 if (len > 0)
505 b[len] = '\0';
506 else
507 {
508 free (b);
509 b = NULL;
510 }
252b5132 511
04925e1e 512 fclose (f);
252b5132 513
04925e1e
AM
514 ld_so_conf = b;
515 }
49e56c49 516
04925e1e
AM
517 initialized = true;
518 }
49e56c49 519
04925e1e
AM
520 if (ld_so_conf == NULL)
521 return false;
252b5132 522
04925e1e 523 return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force);
252b5132
RH
524}
525
04925e1e 526EOF
482e8b32
DB
527 # Linux
528 ;;
529 esac
04925e1e
AM
530 esac
531fi
532cat >>e${EMULATION_NAME}.c <<EOF
533
252b5132
RH
534/* See if an input file matches a DT_NEEDED entry by name. */
535
536static void
537gld${EMULATION_NAME}_check_needed (s)
538 lang_input_statement_type *s;
539{
540 if (global_found)
541 return;
542
577a0623 543 if (s->filename != NULL)
252b5132 544 {
577a0623
AM
545 const char *f;
546
547 if (strcmp (s->filename, global_needed->name) == 0)
548 {
549 global_found = true;
550 return;
551 }
552
553 if (s->search_dirs_flag)
554 {
555 f = strrchr (s->filename, '/');
556 if (f != NULL
557 && strcmp (f + 1, global_needed->name) == 0)
558 {
559 global_found = true;
560 return;
561 }
562 }
252b5132
RH
563 }
564
565 if (s->the_bfd != NULL)
566 {
567 const char *soname;
568
569 soname = bfd_elf_get_dt_soname (s->the_bfd);
570 if (soname != NULL
571 && strcmp (soname, global_needed->name) == 0)
572 {
573 global_found = true;
574 return;
575 }
576 }
252b5132
RH
577}
578
41392f03
AM
579EOF
580
581if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
582cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
583
584/* This is called after all the input files have been opened. */
252b5132
RH
585
586static void
04925e1e 587gld${EMULATION_NAME}_after_open ()
252b5132 588{
04925e1e 589 struct bfd_link_needed_list *needed, *l;
252b5132 590
04925e1e
AM
591 /* We only need to worry about this when doing a final link. */
592 if (link_info.relocateable || link_info.shared)
252b5132
RH
593 return;
594
04925e1e
AM
595 /* Get the list of files which appear in DT_NEEDED entries in
596 dynamic objects included in the link (often there will be none).
597 For each such file, we want to track down the corresponding
598 library, and include the symbol table in the link. This is what
599 the runtime dynamic linker will do. Tracking the files down here
600 permits one dynamic object to include another without requiring
601 special action by the person doing the link. Note that the
602 needed list can actually grow while we are stepping through this
603 loop. */
604 needed = bfd_elf_get_needed_list (output_bfd, &link_info);
605 for (l = needed; l != NULL; l = l->next)
252b5132 606 {
04925e1e
AM
607 struct bfd_link_needed_list *ll;
608 int force;
252b5132 609
04925e1e
AM
610 /* If we've already seen this file, skip it. */
611 for (ll = needed; ll != l; ll = ll->next)
612 if (strcmp (ll->name, l->name) == 0)
613 break;
614 if (ll != l)
615 continue;
252b5132 616
04925e1e
AM
617 /* See if this file was included in the link explicitly. */
618 global_needed = l;
619 global_found = false;
620 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
621 if (global_found)
622 continue;
252b5132 623
ec4eb78a
L
624 if (trace_file_tries)
625 info_msg (_("%s needed by %B\n"), l->name, l->by);
626
04925e1e
AM
627 /* We need to find this file and include the symbol table. We
628 want to search for the file in the same way that the dynamic
629 linker will search. That means that we want to use
630 rpath_link, rpath, then the environment variable
ec4eb78a
L
631 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
632 entries (native only), then the linker script LIB_SEARCH_DIRS.
633 We do not search using the -L arguments.
252b5132 634
04925e1e
AM
635 We search twice. The first time, we skip objects which may
636 introduce version mismatches. The second time, we force
637 their use. See gld${EMULATION_NAME}_vercheck comment. */
638 for (force = 0; force < 2; force++)
639 {
04925e1e
AM
640 size_t len;
641 search_dirs_type *search;
6dd8c765
L
642EOF
643if [ "x${host}" = "x${target}" ] ; then
644 case " ${EMULATION_LIBPATH} " in
645 *" ${EMULATION_NAME} "*)
646cat >>e${EMULATION_NAME}.c <<EOF
dcb0bd0e 647 const char *lib_path;
6dd8c765
L
648 struct bfd_link_needed_list *rp;
649 int found;
650EOF
651 ;;
652 esac
653fi
654cat >>e${EMULATION_NAME}.c <<EOF
252b5132 655
04925e1e
AM
656 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
657 l->name, force))
658 break;
dcb0bd0e
L
659EOF
660if [ "x${host}" = "x${target}" ] ; then
661 case " ${EMULATION_LIBPATH} " in
662 *" ${EMULATION_NAME} "*)
663cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
664 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
665 l->name, force))
666 break;
667 if (command_line.rpath_link == NULL
668 && command_line.rpath == NULL)
669 {
670 lib_path = (const char *) getenv ("LD_RUN_PATH");
671 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name,
672 force))
673 break;
674 }
04925e1e
AM
675 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
676 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force))
677 break;
ec4eb78a
L
678
679 found = 0;
6dd8c765
L
680 rp = bfd_elf_get_runpath_list (output_bfd, &link_info);
681 for (; !found && rp != NULL; rp = rp->next)
ec4eb78a
L
682 {
683 found = (rp->by == l->by
684 && gld${EMULATION_NAME}_search_needed (rp->name,
685 l->name,
686 force));
687 }
688 if (found)
689 break;
690
04925e1e
AM
691EOF
692 ;;
693 esac
694fi
695cat >>e${EMULATION_NAME}.c <<EOF
696 len = strlen (l->name);
697 for (search = search_head; search != NULL; search = search->next)
698 {
699 char *filename;
252b5132 700
04925e1e
AM
701 if (search->cmdline)
702 continue;
703 filename = (char *) xmalloc (strlen (search->name) + len + 2);
704 sprintf (filename, "%s/%s", search->name, l->name);
705 if (gld${EMULATION_NAME}_try_needed (filename, force))
706 break;
707 free (filename);
708 }
709 if (search != NULL)
710 break;
711EOF
712if [ "x${host}" = "x${target}" ] ; then
713 case " ${EMULATION_LIBPATH} " in
714 *" ${EMULATION_NAME} "*)
482e8b32
DB
715 case ${target} in
716 *-*-linux-gnu*)
717 cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
718 if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
719 break;
720EOF
482e8b32
DB
721 # Linux
722 ;;
723 esac
04925e1e
AM
724 ;;
725 esac
726fi
727cat >>e${EMULATION_NAME}.c <<EOF
728 }
252b5132 729
04925e1e
AM
730 if (force < 2)
731 continue;
252b5132 732
e374f1d9 733 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
04925e1e
AM
734 l->name, l->by);
735 }
736}
252b5132 737
41392f03
AM
738EOF
739fi
740
741cat >>e${EMULATION_NAME}.c <<EOF
252b5132 742
04925e1e 743/* Look through an expression for an assignment statement. */
252b5132 744
04925e1e
AM
745static void
746gld${EMULATION_NAME}_find_exp_assignment (exp)
747 etree_type *exp;
748{
749 struct bfd_link_hash_entry *h;
750
751 switch (exp->type.node_class)
252b5132 752 {
04925e1e
AM
753 case etree_provide:
754 h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
755 false, false, false);
756 if (h == NULL)
757 break;
252b5132 758
04925e1e
AM
759 /* We call record_link_assignment even if the symbol is defined.
760 This is because if it is defined by a dynamic object, we
761 actually want to use the value defined by the linker script,
762 not the value from the dynamic object (because we are setting
763 symbols like etext). If the symbol is defined by a regular
764 object, then, as it happens, calling record_link_assignment
765 will do no harm. */
766
767 /* Fall through. */
768 case etree_assign:
769 if (strcmp (exp->assign.dst, ".") != 0)
252b5132 770 {
04925e1e
AM
771 if (! (bfd_elf${ELFSIZE}_record_link_assignment
772 (output_bfd, &link_info, exp->assign.dst,
773 exp->type.node_class == etree_provide ? true : false)))
774 einfo ("%P%F: failed to record assignment to %s: %E\n",
775 exp->assign.dst);
252b5132 776 }
04925e1e
AM
777 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
778 break;
252b5132 779
04925e1e
AM
780 case etree_binary:
781 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
782 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
783 break;
252b5132 784
04925e1e
AM
785 case etree_trinary:
786 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
787 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
788 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
789 break;
252b5132 790
04925e1e
AM
791 case etree_unary:
792 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
793 break;
252b5132 794
04925e1e
AM
795 default:
796 break;
252b5132
RH
797 }
798}
799
04925e1e
AM
800
801/* This is called by the before_allocation routine via
802 lang_for_each_statement. It locates any assignment statements, and
803 tells the ELF backend about them, in case they are assignments to
804 symbols which are referred to by dynamic objects. */
805
806static void
807gld${EMULATION_NAME}_find_statement_assignment (s)
808 lang_statement_union_type *s;
809{
810 if (s->header.type == lang_assignment_statement_enum)
811 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
812}
813
41392f03
AM
814EOF
815
816if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
57e6abd2
AO
817 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
818 ELF_INTERPRETER_SET_DEFAULT="
819 if (sinterp != NULL)
820 {
821 sinterp->contents = ${ELF_INTERPRETER_NAME};
822 sinterp->_raw_size = strlen (sinterp->contents) + 1;
823 }
824
825"
826 else
827 ELF_INTERPRETER_SET_DEFAULT=
828 fi
41392f03 829cat >>e${EMULATION_NAME}.c <<EOF
04925e1e 830
252b5132
RH
831/* This is called after the sections have been attached to output
832 sections, but before any sizes or addresses have been set. */
833
834static void
835gld${EMULATION_NAME}_before_allocation ()
836{
837 const char *rpath;
838 asection *sinterp;
839
840 /* If we are going to make any variable assignments, we need to let
841 the ELF backend know about them in case the variables are
842 referred to by dynamic objects. */
843 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
844
845 /* Let the ELF backend work out the sizes of any sections required
846 by dynamic linking. */
847 rpath = command_line.rpath;
848 if (rpath == NULL)
849 rpath = (const char *) getenv ("LD_RUN_PATH");
850 if (! (bfd_elf${ELFSIZE}_size_dynamic_sections
851 (output_bfd, command_line.soname, rpath,
605d9b3a 852 command_line.filter_shlib,
252b5132
RH
853 (const char * const *) command_line.auxiliary_filters,
854 &link_info, &sinterp, lang_elf_version_info)))
855 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
57e6abd2 856${ELF_INTERPRETER_SET_DEFAULT}
252b5132
RH
857 /* Let the user override the dynamic linker we are using. */
858 if (command_line.interpreter != NULL
859 && sinterp != NULL)
860 {
861 sinterp->contents = (bfd_byte *) command_line.interpreter;
862 sinterp->_raw_size = strlen (command_line.interpreter) + 1;
863 }
864
865 /* Look for any sections named .gnu.warning. As a GNU extensions,
866 we treat such sections as containing warning messages. We print
867 out the warning message, and then zero out the section size so
868 that it does not get copied into the output file. */
869
870 {
871 LANG_FOR_EACH_INPUT_STATEMENT (is)
872 {
873 asection *s;
874 bfd_size_type sz;
875 char *msg;
876 boolean ret;
877
878 if (is->just_syms_flag)
879 continue;
880
881 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
882 if (s == NULL)
883 continue;
884
885 sz = bfd_section_size (is->the_bfd, s);
886 msg = xmalloc ((size_t) sz + 1);
887 if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz))
888 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
889 is->the_bfd);
890 msg[sz] = '\0';
891 ret = link_info.callbacks->warning (&link_info, msg,
892 (const char *) NULL,
893 is->the_bfd, (asection *) NULL,
894 (bfd_vma) 0);
895 ASSERT (ret);
896 free (msg);
897
898 /* Clobber the section size, so that we don't waste copying the
899 warning into the output file. */
900 s->_raw_size = 0;
901 }
902 }
903}
904
41392f03
AM
905EOF
906fi
907
908if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
909cat >>e${EMULATION_NAME}.c <<EOF
252b5132 910
04925e1e
AM
911/* Try to open a dynamic archive. This is where we know that ELF
912 dynamic libraries have an extension of .so (or .sl on oddball systems
913 like hpux). */
914
915static boolean
916gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
917 const char *arch;
918 search_dirs_type *search;
919 lang_input_statement_type *entry;
252b5132 920{
04925e1e
AM
921 const char *filename;
922 char *string;
252b5132 923
04925e1e
AM
924 if (! entry->is_archive)
925 return false;
252b5132 926
04925e1e 927 filename = entry->filename;
252b5132 928
04925e1e
AM
929 /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
930 is defined, but it does not seem worth the headache to optimize
931 away those two bytes of space. */
932 string = (char *) xmalloc (strlen (search->name)
933 + strlen (filename)
934 + strlen (arch)
935#ifdef EXTRA_SHLIB_EXTENSION
936 + strlen (EXTRA_SHLIB_EXTENSION)
937#endif
938 + sizeof "/lib.so");
939
940 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
941
942#ifdef EXTRA_SHLIB_EXTENSION
943 /* Try the .so extension first. If that fails build a new filename
944 using EXTRA_SHLIB_EXTENSION. */
945 if (! ldfile_try_open_bfd (string, entry))
946 sprintf (string, "%s/lib%s%s%s", search->name,
947 filename, arch, EXTRA_SHLIB_EXTENSION);
948#endif
949
950 if (! ldfile_try_open_bfd (string, entry))
252b5132 951 {
04925e1e
AM
952 free (string);
953 return false;
954 }
252b5132 955
04925e1e 956 entry->filename = string;
252b5132 957
04925e1e
AM
958 /* We have found a dynamic object to include in the link. The ELF
959 backend linker will create a DT_NEEDED entry in the .dynamic
960 section naming this file. If this file includes a DT_SONAME
961 entry, it will be used. Otherwise, the ELF linker will just use
962 the name of the file. For an archive found by searching, like
963 this one, the DT_NEEDED entry should consist of just the name of
964 the file, without the path information used to find it. Note
965 that we only need to do this if we have a dynamic object; an
966 archive will never be referenced by a DT_NEEDED entry.
252b5132 967
04925e1e
AM
968 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
969 very pretty. I haven't been able to think of anything that is
970 pretty, though. */
971 if (bfd_check_format (entry->the_bfd, bfd_object)
972 && (entry->the_bfd->flags & DYNAMIC) != 0)
973 {
04925e1e 974 ASSERT (entry->is_archive && entry->search_dirs_flag);
252b5132 975
04925e1e 976 /* Rather than duplicating the logic above. Just use the
1c9acd94 977 filename we recorded earlier. */
04925e1e 978
1c9acd94
L
979 filename = xstrdup (basename (entry->filename));
980 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
04925e1e
AM
981 }
982
983 return true;
984}
985
41392f03
AM
986EOF
987fi
cde43e70
AM
988
989if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
41392f03
AM
990cat >>e${EMULATION_NAME}.c <<EOF
991
992/* A variant of lang_output_section_find. Used by place_orphan. */
04925e1e 993
04925e1e
AM
994static lang_output_section_statement_type *
995output_rel_find ()
996{
997 lang_statement_union_type *u;
998 lang_output_section_statement_type *lookup;
999
1000 for (u = lang_output_section_statement.head;
1001 u != (lang_statement_union_type *) NULL;
1002 u = lookup->next)
1003 {
1004 lookup = &u->output_section_statement;
1005 if (strncmp (".rel", lookup->name, 4) == 0
1006 && lookup->bfd_section != NULL
1007 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1008 {
1009 return lookup;
1010 }
252b5132 1011 }
04925e1e 1012 return (lang_output_section_statement_type *) NULL;
252b5132
RH
1013}
1014
95500e1c
JJ
1015/* Find the last output section before given output statement.
1016 Used by place_orphan. */
1017
1018static asection *
1019output_prev_sec_find (os)
1020 lang_output_section_statement_type *os;
1021{
1022 asection *s = (asection *) NULL;
1023 lang_statement_union_type *u;
1024 lang_output_section_statement_type *lookup;
1025
1026 for (u = lang_output_section_statement.head;
1027 u != (lang_statement_union_type *) NULL;
1028 u = lookup->next)
1029 {
1030 lookup = &u->output_section_statement;
1031 if (lookup == os)
cde43e70
AM
1032 return s;
1033
1034 if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL)
95500e1c
JJ
1035 s = lookup->bfd_section;
1036 }
1037
cde43e70 1038 return NULL;
95500e1c
JJ
1039}
1040
252b5132
RH
1041/* Place an orphan section. We use this to put random SHF_ALLOC
1042 sections in the right segment. */
1043
41392f03 1044struct orphan_save {
6a345e87 1045 lang_output_section_statement_type *os;
5ba47421 1046 asection **section;
6a345e87
AM
1047 lang_statement_union_type **stmt;
1048};
252b5132 1049
252b5132
RH
1050static boolean
1051gld${EMULATION_NAME}_place_orphan (file, s)
1052 lang_input_statement_type *file;
1053 asection *s;
1054{
aea4bd9d
AM
1055 static struct orphan_save hold_text;
1056 static struct orphan_save hold_rodata;
1057 static struct orphan_save hold_data;
1058 static struct orphan_save hold_bss;
1059 static struct orphan_save hold_rel;
1060 static struct orphan_save hold_interp;
c940e6fc 1061 static struct orphan_save hold_sdata;
f9989030 1062 static int count = 1;
6a345e87 1063 struct orphan_save *place;
71bfc0ae 1064 lang_statement_list_type *old;
252b5132
RH
1065 lang_statement_list_type add;
1066 etree_type *address;
a854a4a7 1067 const char *secname;
252b5132 1068 const char *outsecname;
a854a4a7 1069 const char *ps = NULL;
252b5132
RH
1070 lang_output_section_statement_type *os;
1071
aea4bd9d
AM
1072 secname = bfd_get_section_name (s->owner, s);
1073
577a0623 1074 if (! config.unique_orphan_sections && ! unique_section_p (secname))
252b5132 1075 {
6d02a667 1076 /* Look through the script to see where to place this section. */
a854a4a7
AM
1077 os = lang_output_section_find (secname);
1078
1079 if (os != NULL
0f33d40b
AM
1080 && (os->bfd_section == NULL
1081 || ((s->flags ^ os->bfd_section->flags)
1082 & (SEC_LOAD | SEC_ALLOC)) == 0))
a854a4a7 1083 {
0f33d40b 1084 /* We already have an output section statement with this
22af9fd3 1085 name, and its bfd section, if any, has compatible flags. */
39dcfe18 1086 lang_add_section (&os->children, s, os, file);
a854a4a7
AM
1087 return true;
1088 }
252b5132
RH
1089 }
1090
aea4bd9d
AM
1091 if (hold_text.os == NULL)
1092 hold_text.os = lang_output_section_find (".text");
252b5132
RH
1093
1094 /* If this is a final link, then always put .gnu.warning.SYMBOL
1095 sections into the .text section to get them out of the way. */
1096 if (! link_info.shared
1097 && ! link_info.relocateable
1098 && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
6a345e87 1099 && hold_text.os != NULL)
252b5132 1100 {
39dcfe18 1101 lang_add_section (&hold_text.os->children, s, hold_text.os, file);
252b5132
RH
1102 return true;
1103 }
1104
1105 /* Decide which segment the section should go in based on the
1106 section name and section flags. We put loadable .note sections
1107 right after the .interp section, so that the PT_NOTE segment is
1108 stored right after the program headers where the OS can read it
1109 in the first page. */
aea4bd9d
AM
1110#define HAVE_SECTION(hold, name) \
1111(hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
1112
252b5132 1113 if (s->flags & SEC_EXCLUDE)
22af9fd3
AM
1114 {
1115 if (s->output_section == NULL)
1116 s->output_section = bfd_abs_section_ptr;
1117 return true;
1118 }
71bfc0ae
AM
1119
1120 place = NULL;
1121 if ((s->flags & SEC_ALLOC) == 0)
1122 ;
252b5132 1123 else if ((s->flags & SEC_LOAD) != 0
577a0623 1124 && strncmp (secname, ".note", 5) == 0
aea4bd9d 1125 && HAVE_SECTION (hold_interp, ".interp"))
6a345e87 1126 place = &hold_interp;
252b5132 1127 else if ((s->flags & SEC_HAS_CONTENTS) == 0
aea4bd9d 1128 && HAVE_SECTION (hold_bss, ".bss"))
6a345e87 1129 place = &hold_bss;
c940e6fc
JW
1130 else if ((s->flags & SEC_SMALL_DATA) != 0
1131 && HAVE_SECTION (hold_sdata, ".sdata"))
1132 place = &hold_sdata;
252b5132 1133 else if ((s->flags & SEC_READONLY) == 0
aea4bd9d 1134 && HAVE_SECTION (hold_data, ".data"))
6a345e87 1135 place = &hold_data;
252b5132 1136 else if (strncmp (secname, ".rel", 4) == 0
aea4bd9d
AM
1137 && (hold_rel.os != NULL
1138 || (hold_rel.os = output_rel_find ()) != NULL))
db6751f2
JJ
1139 {
1140 if (! link_info.relocateable && link_info.combreloc)
1141 {
1142 if (strncmp (secname, ".rela", 5) == 0)
1143 os = lang_output_section_find (".rela.dyn");
1144 else
1145 os = lang_output_section_find (".rel.dyn");
1146
1147 if (os != NULL
1148 && os->bfd_section != NULL
1149 && ((s->flags ^ os->bfd_section->flags)
1150 & (SEC_LOAD | SEC_ALLOC)) == 0)
1151 {
1152 lang_add_section (&os->children, s, os, file);
1153 return true;
1154 }
1155 }
1156 place = &hold_rel;
1157 }
71bfc0ae 1158 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == SEC_READONLY
aea4bd9d 1159 && HAVE_SECTION (hold_rodata, ".rodata"))
6a345e87 1160 place = &hold_rodata;
71bfc0ae 1161 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == (SEC_CODE | SEC_READONLY)
6a345e87
AM
1162 && hold_text.os != NULL)
1163 place = &hold_text;
252b5132 1164
aea4bd9d
AM
1165#undef HAVE_SECTION
1166
252b5132
RH
1167 /* Choose a unique name for the section. This will be needed if the
1168 same section name appears in the input file with different
f813923c 1169 loadable or allocatable characteristics. */
252b5132
RH
1170 outsecname = secname;
1171 if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
b3ea3584
AM
1172 {
1173 outsecname = bfd_get_unique_section_name (output_bfd,
1174 outsecname,
1175 &count);
1176 if (outsecname == NULL)
1177 einfo ("%F%P: place_orphan failed: %E\n");
1178 }
252b5132 1179
71bfc0ae
AM
1180 /* Start building a list of statements for this section.
1181 First save the current statement pointer. */
1182 old = stat_ptr;
1183
1184 /* If we have found an appropriate place for the output section
1185 statements for this orphan, add them to our own private list,
1186 inserting them later into the global statement list. */
5ba47421 1187 if (place != NULL)
252b5132 1188 {
5ba47421
AM
1189 stat_ptr = &add;
1190 lang_list_init (stat_ptr);
71bfc0ae 1191 }
5ba47421 1192
71bfc0ae
AM
1193 if (config.build_constructors)
1194 {
5ba47421
AM
1195 /* If the name of the section is representable in C, then create
1196 symbols to mark the start and the end of the section. */
1197 for (ps = outsecname; *ps != '\0'; ps++)
3882b010 1198 if (! ISALNUM (*ps) && *ps != '_')
5ba47421 1199 break;
71bfc0ae 1200 if (*ps == '\0')
5ba47421
AM
1201 {
1202 char *symname;
1203 etree_type *e_align;
1204
1205 symname = (char *) xmalloc (ps - outsecname + sizeof "__start_");
1206 sprintf (symname, "__start_%s", outsecname);
1207 e_align = exp_unop (ALIGN_K,
1208 exp_intop ((bfd_vma) 1 << s->alignment_power));
1209 lang_add_assignment (exp_assop ('=', symname, e_align));
1210 }
252b5132
RH
1211 }
1212
01cc8ff8 1213 if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
252b5132 1214 address = exp_intop ((bfd_vma) 0);
01cc8ff8
AM
1215 else
1216 address = NULL;
252b5132 1217
aea4bd9d
AM
1218 os = lang_enter_output_section_statement (outsecname, address, 0,
1219 (bfd_vma) 0,
1220 (etree_type *) NULL,
1221 (etree_type *) NULL,
1222 (etree_type *) NULL);
252b5132 1223
39dcfe18 1224 lang_add_section (&os->children, s, os, file);
252b5132 1225
20d04697
L
1226 lang_leave_output_section_statement
1227 ((bfd_vma) 0, "*default*",
1228 (struct lang_output_section_phdr_list *) NULL, "*default*");
1229
71bfc0ae 1230 if (config.build_constructors && *ps == '\0')
252b5132 1231 {
71bfc0ae 1232 char *symname;
252b5132 1233
71bfc0ae
AM
1234 /* lang_leave_ouput_section_statement resets stat_ptr. Put
1235 stat_ptr back where we want it. */
1236 if (place != NULL)
1237 stat_ptr = &add;
252b5132 1238
71bfc0ae
AM
1239 symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_");
1240 sprintf (symname, "__stop_%s", outsecname);
1241 lang_add_assignment (exp_assop ('=', symname,
1242 exp_nameop (NAME, ".")));
1243 }
5ba47421 1244
71bfc0ae
AM
1245 /* Restore the global list pointer. */
1246 stat_ptr = old;
1247
1248 if (place != NULL)
1249 {
cde43e70 1250 asection *snew, **pps;
5ba47421
AM
1251
1252 snew = os->bfd_section;
95500e1c 1253
cde43e70
AM
1254 /* Shuffle the bfd section list to make the output file look
1255 neater. This is really only cosmetic. */
1256 if (place->section == NULL)
5ba47421 1257 {
cde43e70 1258 asection *bfd_section = place->os->bfd_section;
5ba47421 1259
cde43e70
AM
1260 /* If the output statement hasn't been used to place
1261 any input sections (and thus doesn't have an output
1262 bfd_section), look for the closest prior output statement
1263 having an output section. */
1264 if (bfd_section == NULL)
1265 bfd_section = output_prev_sec_find (place->os);
1266
1267 if (bfd_section != NULL && bfd_section != snew)
1268 place->section = &bfd_section->next;
1269 }
1270
1271 if (place->section != NULL)
1272 {
3dfe7a8c 1273 /* Unlink the section. */
5ba47421
AM
1274 for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
1275 ;
3dfe7a8c 1276 bfd_section_list_remove (output_bfd, pps);
5ba47421
AM
1277
1278 /* Now tack it on to the "place->os" section list. */
3dfe7a8c 1279 bfd_section_list_insert (output_bfd, place->section, snew);
5ba47421 1280 }
5ba47421 1281
cde43e70
AM
1282 /* Save the end of this list. Further ophans of this type will
1283 follow the one we've just added. */
1284 place->section = &snew->next;
1285
1286 /* The following is non-cosmetic. We try to put the output
1287 statements in some sort of reasonable order here, because
1288 they determine the final load addresses of the orphan
1289 sections. In addition, placing output statements in the
1290 wrong order may require extra segments. For instance,
1291 given a typical situation of all read-only sections placed
1292 in one segment and following that a segment containing all
1293 the read-write sections, we wouldn't want to place an orphan
1294 read/write section before or amongst the read-only ones. */
ed15ac6a 1295 if (add.head != NULL)
01cc8ff8 1296 {
ed15ac6a
AM
1297 if (place->stmt == NULL)
1298 {
1299 /* Put the new statement list right at the head. */
1300 *add.tail = place->os->header.next;
1301 place->os->header.next = add.head;
1302 }
1303 else
1304 {
1305 /* Put it after the last orphan statement we added. */
1306 *add.tail = *place->stmt;
1307 *place->stmt = add.head;
1308 }
71bfc0ae 1309
ed15ac6a
AM
1310 /* Fix the global list pointer if we happened to tack our
1311 new list at the tail. */
1312 if (*old->tail == add.head)
1313 old->tail = add.tail;
71bfc0ae 1314
ed15ac6a
AM
1315 /* Save the end of this list. */
1316 place->stmt = add.tail;
1317 }
6a345e87 1318 }
252b5132
RH
1319
1320 return true;
1321}
c56feb2b
AM
1322EOF
1323fi
1324
1325if test x"$LDEMUL_FINISH" != xgld"$EMULATION_NAME"_finish; then
1326cat >>e${EMULATION_NAME}.c <<EOF
252b5132 1327
73d074b4
DJ
1328static void
1329gld${EMULATION_NAME}_finish ()
1330{
65765700 1331 if (bfd_elf${ELFSIZE}_discard_info (output_bfd, &link_info))
73d074b4 1332 {
e3dc8847
HPN
1333 lang_reset_memory_regions ();
1334
73d074b4
DJ
1335 /* Resize the sections. */
1336 lang_size_sections (stat_ptr->head, abs_output_section,
ca0b5847 1337 &stat_ptr->head, 0, (bfd_vma) 0, NULL);
73d074b4
DJ
1338
1339 /* Redo special stuff. */
1340 ldemul_after_allocation ();
1341
1342 /* Do the assignments again. */
1343 lang_do_assignments (stat_ptr->head, abs_output_section,
2c382fb6 1344 (fill_type *) 0, (bfd_vma) 0);
73d074b4
DJ
1345 }
1346}
41392f03
AM
1347EOF
1348fi
1349
1350if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
1351cat >>e${EMULATION_NAME}.c <<EOF
252b5132
RH
1352
1353static char *
41392f03 1354gld${EMULATION_NAME}_get_script (isfile)
252b5132
RH
1355 int *isfile;
1356EOF
1357
1358if test -n "$COMPILE_IN"
1359then
1360# Scripts compiled in.
1361
1362# sed commands to quote an ld script as a C string.
597e2591 1363sc="-f stringify.sed"
252b5132
RH
1364
1365cat >>e${EMULATION_NAME}.c <<EOF
60bcf0fa 1366{
252b5132
RH
1367 *isfile = 0;
1368
1369 if (link_info.relocateable == true && config.build_constructors == true)
597e2591 1370 return
252b5132 1371EOF
597e2591
ILT
1372sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1373echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
1374sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1375echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1376sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
61585df2 1377if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
597e2591
ILT
1378echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1379sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
db6751f2 1380fi
252b5132 1381if test -n "$GENERATE_SHLIB_SCRIPT" ; then
db6751f2
JJ
1382echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
1383sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
597e2591
ILT
1384echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
1385sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
252b5132 1386fi
db6751f2
JJ
1387echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
1388sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
597e2591
ILT
1389echo ' ; else return' >> e${EMULATION_NAME}.c
1390sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1391echo '; }' >> e${EMULATION_NAME}.c
252b5132
RH
1392
1393else
1394# Scripts read from the filesystem.
1395
1396cat >>e${EMULATION_NAME}.c <<EOF
60bcf0fa 1397{
252b5132
RH
1398 *isfile = 1;
1399
1400 if (link_info.relocateable == true && config.build_constructors == true)
1401 return "ldscripts/${EMULATION_NAME}.xu";
1402 else if (link_info.relocateable == true)
1403 return "ldscripts/${EMULATION_NAME}.xr";
1404 else if (!config.text_read_only)
1405 return "ldscripts/${EMULATION_NAME}.xbn";
1406 else if (!config.magic_demand_paged)
1407 return "ldscripts/${EMULATION_NAME}.xn";
1408 else if (link_info.shared)
1409 return "ldscripts/${EMULATION_NAME}.xs";
1410 else
1411 return "ldscripts/${EMULATION_NAME}.x";
1412}
252b5132 1413
3b108066 1414EOF
41392f03
AM
1415fi
1416fi
3b108066 1417
41392f03 1418if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
3b108066 1419
4b209b22 1420if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
3b108066 1421
e0ee487b
L
1422if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
1423cat >>e${EMULATION_NAME}.c <<EOF
1424 $PARSE_AND_LIST_PROLOGUE
1425EOF
1426fi
1427
e0ee487b
L
1428cat >>e${EMULATION_NAME}.c <<EOF
1429
1430#include "getopt.h"
1431
6c1439be
L
1432#define OPTION_DISABLE_NEW_DTAGS (400)
1433#define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
a1ab1d2a 1434#define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
65765700 1435#define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
6c1439be 1436
e0ee487b
L
1437static struct option longopts[] =
1438{
1439EOF
e0ee487b
L
1440
1441if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1442cat >>e${EMULATION_NAME}.c <<EOF
699845ef
L
1443 /* getopt allows abbreviations, so we do this to stop it from
1444 treating -d/-e as abbreviations for these options. */
6c1439be 1445 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
699845ef
L
1446 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1447 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
6c1439be 1448 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
65765700 1449 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
a1ab1d2a
UD
1450 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1451 {"Bgroup", no_argument, NULL, OPTION_GROUP},
e0ee487b
L
1452EOF
1453fi
1454
1455if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
1456cat >>e${EMULATION_NAME}.c <<EOF
1457 $PARSE_AND_LIST_LONGOPTS
1458EOF
1459fi
1460
e0ee487b
L
1461cat >>e${EMULATION_NAME}.c <<EOF
1462 {NULL, no_argument, NULL, 0}
1463};
1464
04925e1e 1465
4b209b22 1466static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
41392f03 1467
e0ee487b 1468static int
4b209b22 1469gld${EMULATION_NAME}_parse_args (argc, argv)
e0ee487b
L
1470 int argc;
1471 char ** argv;
1472{
4b209b22
AM
1473 int longind;
1474 int optc;
1475 static int prevoptind = -1;
e0ee487b
L
1476 int prevopterr = opterr;
1477 int wanterror;
e0ee487b 1478
4b209b22 1479 if (prevoptind != optind)
e0ee487b
L
1480 opterr = 0;
1481
4b209b22
AM
1482 wanterror = opterr;
1483 prevoptind = optind;
1484
41392f03
AM
1485 optc = getopt_long_only (argc, argv,
1486 "-${PARSE_AND_LIST_SHORTOPTS}z:", longopts,
1487 &longind);
e0ee487b
L
1488 opterr = prevopterr;
1489
1490 switch (optc)
1491 {
1492 default:
1493 if (wanterror)
1494 xexit (1);
4b209b22 1495 optind = prevoptind;
e0ee487b 1496 return 0;
6c1439be 1497
e0ee487b 1498EOF
e0ee487b
L
1499
1500if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1501cat >>e${EMULATION_NAME}.c <<EOF
6c1439be
L
1502 case OPTION_DISABLE_NEW_DTAGS:
1503 link_info.new_dtags = false;
1504 break;
1505
1506 case OPTION_ENABLE_NEW_DTAGS:
1507 link_info.new_dtags = true;
1508 break;
1509
65765700
JJ
1510 case OPTION_EH_FRAME_HDR:
1511 link_info.eh_frame_hdr = true;
1512 break;
1513
a1ab1d2a
UD
1514 case OPTION_GROUP:
1515 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
1516 /* Groups must be self-contained. */
1517 link_info.no_undefined = true;
1518 break;
1519
e0ee487b
L
1520 case 'z':
1521 if (strcmp (optarg, "initfirst") == 0)
1522 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
1523 else if (strcmp (optarg, "interpose") == 0)
1524 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
1525 else if (strcmp (optarg, "loadfltr") == 0)
1526 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
1527 else if (strcmp (optarg, "nodefaultlib") == 0)
1528 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
1529 else if (strcmp (optarg, "nodelete") == 0)
1530 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
1531 else if (strcmp (optarg, "nodlopen") == 0)
1532 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
1533 else if (strcmp (optarg, "nodump") == 0)
1534 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
1535 else if (strcmp (optarg, "now") == 0)
1536 {
1537 link_info.flags |= (bfd_vma) DF_BIND_NOW;
1538 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
1539 }
1540 else if (strcmp (optarg, "origin") == 0)
1541 {
1542 link_info.flags |= (bfd_vma) DF_ORIGIN;
1543 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
1544 }
a1ab1d2a
UD
1545 else if (strcmp (optarg, "defs") == 0)
1546 link_info.no_undefined = true;
db6751f2
JJ
1547 else if (strcmp (optarg, "combreloc") == 0)
1548 link_info.combreloc = true;
1549 else if (strcmp (optarg, "nocombreloc") == 0)
1550 link_info.combreloc = false;
8bd621d8
AM
1551 else if (strcmp (optarg, "nocopyreloc") == 0)
1552 link_info.nocopyreloc = true;
e0ee487b 1553 /* What about the other Solaris -z options? FIXME. */
6c1439be 1554 break;
e0ee487b
L
1555EOF
1556fi
1557
1558if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
1559cat >>e${EMULATION_NAME}.c <<EOF
1560 $PARSE_AND_LIST_ARGS_CASES
1561EOF
1562fi
1563
e0ee487b
L
1564cat >>e${EMULATION_NAME}.c <<EOF
1565 }
1566
1567 return 1;
1568}
1569
41392f03
AM
1570EOF
1571fi
1572
4b209b22 1573if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
41392f03
AM
1574cat >>e${EMULATION_NAME}.c <<EOF
1575
4b209b22 1576static void gld${EMULATION_NAME}_list_options PARAMS ((FILE * file));
04925e1e 1577
e0ee487b 1578static void
4b209b22 1579gld${EMULATION_NAME}_list_options (file)
e0ee487b
L
1580 FILE * file;
1581{
1582EOF
e0ee487b
L
1583
1584if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1585cat >>e${EMULATION_NAME}.c <<EOF
a1ab1d2a 1586 fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
6c1439be
L
1587 fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
1588 fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
65765700 1589 fprintf (file, _(" --eh-frame-hdr\tCreate .eh_frame_hdr section\n"));
ec38dd05 1590 fprintf (file, _(" -z combreloc\t\tMerge dynamic relocs into one section and sort\n"));
a1ab1d2a 1591 fprintf (file, _(" -z defs\t\tDisallows undefined symbols\n"));
f813923c
HPN
1592 fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
1593 fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
e0ee487b 1594 fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
146e7110
AM
1595 fprintf (file, _(" -z nocombreloc\tDon't merge dynamic relocs into one section\n"));
1596 fprintf (file, _(" -z nocopyreloc\tDon't create copy relocs\n"));
e0ee487b
L
1597 fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
1598 fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
f813923c
HPN
1599 fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));
1600 fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n"));
e0ee487b 1601 fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n"));
73e87d70 1602 fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n\t\t\t at runtime\n"));
19e3be22 1603 fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n"));
e0ee487b
L
1604EOF
1605fi
1606
1607if test -n "$PARSE_AND_LIST_OPTIONS" ; then
1608cat >>e${EMULATION_NAME}.c <<EOF
1609 $PARSE_AND_LIST_OPTIONS
1610EOF
1611fi
1612
e0ee487b
L
1613cat >>e${EMULATION_NAME}.c <<EOF
1614}
1615EOF
e0ee487b
L
1616
1617if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
1618cat >>e${EMULATION_NAME}.c <<EOF
1619 $PARSE_AND_LIST_EPILOGUE
1620EOF
1621fi
41392f03
AM
1622fi
1623else
4b209b22 1624if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
41392f03 1625cat >>e${EMULATION_NAME}.c <<EOF
4b209b22 1626#define gld${EMULATION_NAME}_parse_args NULL
41392f03
AM
1627EOF
1628fi
4b209b22 1629if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
41392f03 1630cat >>e${EMULATION_NAME}.c <<EOF
4b209b22 1631#define gld${EMULATION_NAME}_list_options NULL
41392f03
AM
1632EOF
1633fi
1634fi
e0ee487b 1635
252b5132
RH
1636cat >>e${EMULATION_NAME}.c <<EOF
1637
60bcf0fa 1638struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
252b5132 1639{
41392f03
AM
1640 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
1641 ${LDEMUL_SYSLIB-syslib_default},
1642 ${LDEMUL_HLL-hll_default},
1643 ${LDEMUL_AFTER_PARSE-after_parse_default},
1644 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
1645 ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
1646 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
1647 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
1648 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
1649 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
252b5132
RH
1650 "${EMULATION_NAME}",
1651 "${OUTPUT_FORMAT}",
c56feb2b 1652 ${LDEMUL_FINISH-gld${EMULATION_NAME}_finish},
41392f03
AM
1653 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
1654 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
1655 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
1656 ${LDEMUL_SET_SYMBOLS-NULL},
4b209b22 1657 ${LDEMUL_PARSE_ARGS-gld${EMULATION_NAME}_parse_args},
41392f03 1658 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
4b209b22 1659 ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
41392f03
AM
1660 ${LDEMUL_RECOGNIZED_FILE-NULL},
1661 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
252b5132
RH
1662};
1663EOF
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