*** empty log message ***
[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)
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
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${EMULATION_NAME}.c <<EOF
337 }
338 }
339
340 /* We've found a dynamic object matching the DT_NEEDED entry. */
341
04925e1e
AM
342 /* We have already checked that there is no other input file of the
343 same name. We must now check again that we are not including the
344 same file twice. We need to do this because on many systems
345 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
346 reference libc.so.1. If we have already included libc.so, we
347 don't want to include libc.so.1 if they are the same file, and we
348 can only check that using stat. */
349
350 if (bfd_stat (abfd, &global_stat) != 0)
351 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
ec4eb78a
L
352
353 /* First strip off everything before the last '/'. */
fed2999d 354 soname = lbasename (abfd->filename);
ec4eb78a
L
355
356 if (trace_file_tries)
357 info_msg (_("found %s at %s\n"), soname, name);
358
04925e1e
AM
359 global_found = false;
360 lang_for_each_input_file (gld${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
04925e1e
AM
372 /* Tell the ELF backend that the output file needs a DT_NEEDED
373 entry for this file if it is used to resolve the reference in
374 a regular object. */
ec4eb78a 375 bfd_elf_set_dt_needed_soname (abfd, soname);
04925e1e
AM
376
377 /* Add this file into the symbol table. */
378 if (! bfd_link_add_symbols (abfd, &link_info))
379 einfo ("%F%B: could not read symbols: %E\n", abfd);
380
381 return true;
382}
383
384
385/* Search for a needed file in a path. */
386
387static boolean
388gld${EMULATION_NAME}_search_needed (path, name, force)
389 const char *path;
390 const char *name;
391 int force;
392{
393 const char *s;
394 size_t len;
395
cc5ce052
UD
396 if (name[0] == '/')
397 return gld${EMULATION_NAME}_try_needed (name, force);
398
04925e1e
AM
399 if (path == NULL || *path == '\0')
400 return false;
401 len = strlen (name);
402 while (1)
403 {
404 char *filename, *sset;
405
406 s = strchr (path, ':');
407 if (s == NULL)
408 s = path + strlen (path);
409
410 filename = (char *) xmalloc (s - path + len + 2);
411 if (s == path)
412 sset = filename;
413 else
414 {
415 memcpy (filename, path, s - path);
416 filename[s - path] = '/';
417 sset = filename + (s - path) + 1;
418 }
419 strcpy (sset, name);
420
421 if (gld${EMULATION_NAME}_try_needed (filename, force))
422 return true;
423
424 free (filename);
425
426 if (*s == '\0')
427 break;
428 path = s + 1;
429 }
430
431 return false;
432}
433
434EOF
435if [ "x${host}" = "x${target}" ] ; then
436 case " ${EMULATION_LIBPATH} " in
437 *" ${EMULATION_NAME} "*)
482e8b32
DB
438 case ${target} in
439 *-*-linux-gnu*)
440 cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
441
442/* For a native linker, check the file /etc/ld.so.conf for directories
443 in which we may find shared libraries. /etc/ld.so.conf is really
482e8b32 444 only meaningful on Linux. */
04925e1e
AM
445
446static boolean gld${EMULATION_NAME}_check_ld_so_conf
447 PARAMS ((const char *, int));
448
449static boolean
450gld${EMULATION_NAME}_check_ld_so_conf (name, force)
451 const char *name;
452 int force;
453{
454 static boolean initialized;
455 static char *ld_so_conf;
456
457 if (! initialized)
458 {
459 FILE *f;
460
461 f = fopen ("/etc/ld.so.conf", FOPEN_RT);
462 if (f != NULL)
463 {
464 char *b;
465 size_t len, alloc;
466 int c;
467
468 len = 0;
469 alloc = 100;
470 b = (char *) xmalloc (alloc);
471
472 while ((c = getc (f)) != EOF)
473 {
474 if (len + 1 >= alloc)
475 {
476 alloc *= 2;
477 b = (char *) xrealloc (b, alloc);
478 }
479 if (c != ':'
480 && c != ' '
481 && c != '\t'
482 && c != '\n'
483 && c != ',')
484 {
485 b[len] = c;
486 ++len;
487 }
488 else
489 {
490 if (len > 0 && b[len - 1] != ':')
491 {
492 b[len] = ':';
493 ++len;
494 }
495 }
496 }
497
498 if (len > 0 && b[len - 1] == ':')
499 --len;
252b5132 500
04925e1e
AM
501 if (len > 0)
502 b[len] = '\0';
503 else
504 {
505 free (b);
506 b = NULL;
507 }
252b5132 508
04925e1e 509 fclose (f);
252b5132 510
04925e1e
AM
511 ld_so_conf = b;
512 }
49e56c49 513
04925e1e
AM
514 initialized = true;
515 }
49e56c49 516
04925e1e
AM
517 if (ld_so_conf == NULL)
518 return false;
252b5132 519
04925e1e 520 return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force);
252b5132
RH
521}
522
04925e1e 523EOF
482e8b32
DB
524 # Linux
525 ;;
526 esac
04925e1e
AM
527 esac
528fi
529cat >>e${EMULATION_NAME}.c <<EOF
530
252b5132
RH
531/* See if an input file matches a DT_NEEDED entry by name. */
532
533static void
534gld${EMULATION_NAME}_check_needed (s)
535 lang_input_statement_type *s;
536{
537 if (global_found)
538 return;
539
577a0623 540 if (s->filename != NULL)
252b5132 541 {
577a0623
AM
542 const char *f;
543
544 if (strcmp (s->filename, global_needed->name) == 0)
545 {
546 global_found = true;
547 return;
548 }
549
550 if (s->search_dirs_flag)
551 {
552 f = strrchr (s->filename, '/');
553 if (f != NULL
554 && strcmp (f + 1, global_needed->name) == 0)
555 {
556 global_found = true;
557 return;
558 }
559 }
252b5132
RH
560 }
561
562 if (s->the_bfd != NULL)
563 {
564 const char *soname;
565
566 soname = bfd_elf_get_dt_soname (s->the_bfd);
567 if (soname != NULL
568 && strcmp (soname, global_needed->name) == 0)
569 {
570 global_found = true;
571 return;
572 }
573 }
252b5132
RH
574}
575
41392f03
AM
576EOF
577
578if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
579cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
580
581/* This is called after all the input files have been opened. */
252b5132
RH
582
583static void
04925e1e 584gld${EMULATION_NAME}_after_open ()
252b5132 585{
04925e1e 586 struct bfd_link_needed_list *needed, *l;
252b5132 587
04925e1e
AM
588 /* We only need to worry about this when doing a final link. */
589 if (link_info.relocateable || link_info.shared)
252b5132
RH
590 return;
591
04925e1e
AM
592 /* Get the list of files which appear in DT_NEEDED entries in
593 dynamic objects included in the link (often there will be none).
594 For each such file, we want to track down the corresponding
595 library, and include the symbol table in the link. This is what
596 the runtime dynamic linker will do. Tracking the files down here
597 permits one dynamic object to include another without requiring
598 special action by the person doing the link. Note that the
599 needed list can actually grow while we are stepping through this
600 loop. */
601 needed = bfd_elf_get_needed_list (output_bfd, &link_info);
602 for (l = needed; l != NULL; l = l->next)
252b5132 603 {
04925e1e
AM
604 struct bfd_link_needed_list *ll;
605 int force;
252b5132 606
04925e1e
AM
607 /* If we've already seen this file, skip it. */
608 for (ll = needed; ll != l; ll = ll->next)
609 if (strcmp (ll->name, l->name) == 0)
610 break;
611 if (ll != l)
612 continue;
252b5132 613
04925e1e
AM
614 /* See if this file was included in the link explicitly. */
615 global_needed = l;
616 global_found = false;
617 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
618 if (global_found)
619 continue;
252b5132 620
ec4eb78a
L
621 if (trace_file_tries)
622 info_msg (_("%s needed by %B\n"), l->name, l->by);
623
04925e1e
AM
624 /* We need to find this file and include the symbol table. We
625 want to search for the file in the same way that the dynamic
626 linker will search. That means that we want to use
627 rpath_link, rpath, then the environment variable
ec4eb78a
L
628 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
629 entries (native only), then the linker script LIB_SEARCH_DIRS.
630 We do not search using the -L arguments.
252b5132 631
04925e1e
AM
632 We search twice. The first time, we skip objects which may
633 introduce version mismatches. The second time, we force
634 their use. See gld${EMULATION_NAME}_vercheck comment. */
635 for (force = 0; force < 2; force++)
636 {
04925e1e
AM
637 size_t len;
638 search_dirs_type *search;
6dd8c765
L
639EOF
640if [ "x${host}" = "x${target}" ] ; then
641 case " ${EMULATION_LIBPATH} " in
642 *" ${EMULATION_NAME} "*)
643cat >>e${EMULATION_NAME}.c <<EOF
dcb0bd0e 644 const char *lib_path;
6dd8c765
L
645 struct bfd_link_needed_list *rp;
646 int found;
647EOF
648 ;;
649 esac
650fi
651cat >>e${EMULATION_NAME}.c <<EOF
252b5132 652
04925e1e
AM
653 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
654 l->name, force))
655 break;
dcb0bd0e
L
656EOF
657if [ "x${host}" = "x${target}" ] ; then
658 case " ${EMULATION_LIBPATH} " in
659 *" ${EMULATION_NAME} "*)
660cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
661 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
662 l->name, force))
663 break;
664 if (command_line.rpath_link == NULL
665 && command_line.rpath == NULL)
666 {
667 lib_path = (const char *) getenv ("LD_RUN_PATH");
668 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name,
669 force))
670 break;
671 }
04925e1e
AM
672 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
673 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force))
674 break;
ec4eb78a
L
675
676 found = 0;
6dd8c765
L
677 rp = bfd_elf_get_runpath_list (output_bfd, &link_info);
678 for (; !found && rp != NULL; rp = rp->next)
ec4eb78a
L
679 {
680 found = (rp->by == l->by
681 && gld${EMULATION_NAME}_search_needed (rp->name,
682 l->name,
683 force));
684 }
685 if (found)
686 break;
687
04925e1e
AM
688EOF
689 ;;
690 esac
691fi
692cat >>e${EMULATION_NAME}.c <<EOF
693 len = strlen (l->name);
694 for (search = search_head; search != NULL; search = search->next)
695 {
696 char *filename;
252b5132 697
04925e1e
AM
698 if (search->cmdline)
699 continue;
700 filename = (char *) xmalloc (strlen (search->name) + len + 2);
701 sprintf (filename, "%s/%s", search->name, l->name);
702 if (gld${EMULATION_NAME}_try_needed (filename, force))
703 break;
704 free (filename);
705 }
706 if (search != NULL)
707 break;
708EOF
709if [ "x${host}" = "x${target}" ] ; then
710 case " ${EMULATION_LIBPATH} " in
711 *" ${EMULATION_NAME} "*)
482e8b32
DB
712 case ${target} in
713 *-*-linux-gnu*)
714 cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
715 if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
716 break;
717EOF
482e8b32
DB
718 # Linux
719 ;;
720 esac
04925e1e
AM
721 ;;
722 esac
723fi
724cat >>e${EMULATION_NAME}.c <<EOF
725 }
252b5132 726
04925e1e
AM
727 if (force < 2)
728 continue;
252b5132 729
e374f1d9 730 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
04925e1e
AM
731 l->name, l->by);
732 }
733}
252b5132 734
41392f03
AM
735EOF
736fi
737
738cat >>e${EMULATION_NAME}.c <<EOF
252b5132 739
04925e1e 740/* Look through an expression for an assignment statement. */
252b5132 741
04925e1e
AM
742static void
743gld${EMULATION_NAME}_find_exp_assignment (exp)
744 etree_type *exp;
745{
746 struct bfd_link_hash_entry *h;
747
748 switch (exp->type.node_class)
252b5132 749 {
04925e1e
AM
750 case etree_provide:
751 h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
752 false, false, false);
753 if (h == NULL)
754 break;
252b5132 755
04925e1e
AM
756 /* We call record_link_assignment even if the symbol is defined.
757 This is because if it is defined by a dynamic object, we
758 actually want to use the value defined by the linker script,
759 not the value from the dynamic object (because we are setting
760 symbols like etext). If the symbol is defined by a regular
761 object, then, as it happens, calling record_link_assignment
762 will do no harm. */
763
764 /* Fall through. */
765 case etree_assign:
766 if (strcmp (exp->assign.dst, ".") != 0)
252b5132 767 {
04925e1e
AM
768 if (! (bfd_elf${ELFSIZE}_record_link_assignment
769 (output_bfd, &link_info, exp->assign.dst,
770 exp->type.node_class == etree_provide ? true : false)))
771 einfo ("%P%F: failed to record assignment to %s: %E\n",
772 exp->assign.dst);
252b5132 773 }
04925e1e
AM
774 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
775 break;
252b5132 776
04925e1e
AM
777 case etree_binary:
778 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
779 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
780 break;
252b5132 781
04925e1e
AM
782 case etree_trinary:
783 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
784 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
785 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
786 break;
252b5132 787
04925e1e
AM
788 case etree_unary:
789 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
790 break;
252b5132 791
04925e1e
AM
792 default:
793 break;
252b5132
RH
794 }
795}
796
04925e1e
AM
797
798/* This is called by the before_allocation routine via
799 lang_for_each_statement. It locates any assignment statements, and
800 tells the ELF backend about them, in case they are assignments to
801 symbols which are referred to by dynamic objects. */
802
803static void
804gld${EMULATION_NAME}_find_statement_assignment (s)
805 lang_statement_union_type *s;
806{
807 if (s->header.type == lang_assignment_statement_enum)
808 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
809}
810
41392f03
AM
811EOF
812
813if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
57e6abd2
AO
814 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
815 ELF_INTERPRETER_SET_DEFAULT="
816 if (sinterp != NULL)
817 {
818 sinterp->contents = ${ELF_INTERPRETER_NAME};
819 sinterp->_raw_size = strlen (sinterp->contents) + 1;
820 }
821
822"
823 else
824 ELF_INTERPRETER_SET_DEFAULT=
825 fi
41392f03 826cat >>e${EMULATION_NAME}.c <<EOF
04925e1e 827
252b5132
RH
828/* This is called after the sections have been attached to output
829 sections, but before any sizes or addresses have been set. */
830
831static void
832gld${EMULATION_NAME}_before_allocation ()
833{
834 const char *rpath;
835 asection *sinterp;
836
837 /* If we are going to make any variable assignments, we need to let
838 the ELF backend know about them in case the variables are
839 referred to by dynamic objects. */
840 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
841
842 /* Let the ELF backend work out the sizes of any sections required
843 by dynamic linking. */
844 rpath = command_line.rpath;
845 if (rpath == NULL)
846 rpath = (const char *) getenv ("LD_RUN_PATH");
847 if (! (bfd_elf${ELFSIZE}_size_dynamic_sections
848 (output_bfd, command_line.soname, rpath,
605d9b3a 849 command_line.filter_shlib,
252b5132
RH
850 (const char * const *) command_line.auxiliary_filters,
851 &link_info, &sinterp, lang_elf_version_info)))
852 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
57e6abd2 853${ELF_INTERPRETER_SET_DEFAULT}
252b5132
RH
854 /* Let the user override the dynamic linker we are using. */
855 if (command_line.interpreter != NULL
856 && sinterp != NULL)
857 {
858 sinterp->contents = (bfd_byte *) command_line.interpreter;
859 sinterp->_raw_size = strlen (command_line.interpreter) + 1;
860 }
861
862 /* Look for any sections named .gnu.warning. As a GNU extensions,
863 we treat such sections as containing warning messages. We print
864 out the warning message, and then zero out the section size so
865 that it does not get copied into the output file. */
866
867 {
868 LANG_FOR_EACH_INPUT_STATEMENT (is)
869 {
870 asection *s;
871 bfd_size_type sz;
872 char *msg;
873 boolean ret;
874
875 if (is->just_syms_flag)
876 continue;
877
878 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
879 if (s == NULL)
880 continue;
881
882 sz = bfd_section_size (is->the_bfd, s);
883 msg = xmalloc ((size_t) sz + 1);
884 if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz))
885 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
886 is->the_bfd);
887 msg[sz] = '\0';
888 ret = link_info.callbacks->warning (&link_info, msg,
889 (const char *) NULL,
890 is->the_bfd, (asection *) NULL,
891 (bfd_vma) 0);
892 ASSERT (ret);
893 free (msg);
894
895 /* Clobber the section size, so that we don't waste copying the
896 warning into the output file. */
897 s->_raw_size = 0;
898 }
899 }
900}
901
41392f03
AM
902EOF
903fi
904
905if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
906cat >>e${EMULATION_NAME}.c <<EOF
252b5132 907
04925e1e
AM
908/* Try to open a dynamic archive. This is where we know that ELF
909 dynamic libraries have an extension of .so (or .sl on oddball systems
910 like hpux). */
911
912static boolean
913gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
914 const char *arch;
915 search_dirs_type *search;
916 lang_input_statement_type *entry;
252b5132 917{
04925e1e
AM
918 const char *filename;
919 char *string;
252b5132 920
04925e1e
AM
921 if (! entry->is_archive)
922 return false;
252b5132 923
04925e1e 924 filename = entry->filename;
252b5132 925
04925e1e
AM
926 /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
927 is defined, but it does not seem worth the headache to optimize
928 away those two bytes of space. */
929 string = (char *) xmalloc (strlen (search->name)
930 + strlen (filename)
931 + strlen (arch)
932#ifdef EXTRA_SHLIB_EXTENSION
933 + strlen (EXTRA_SHLIB_EXTENSION)
934#endif
935 + sizeof "/lib.so");
936
937 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
938
939#ifdef EXTRA_SHLIB_EXTENSION
940 /* Try the .so extension first. If that fails build a new filename
941 using EXTRA_SHLIB_EXTENSION. */
942 if (! ldfile_try_open_bfd (string, entry))
943 sprintf (string, "%s/lib%s%s%s", search->name,
944 filename, arch, EXTRA_SHLIB_EXTENSION);
945#endif
946
947 if (! ldfile_try_open_bfd (string, entry))
252b5132 948 {
04925e1e
AM
949 free (string);
950 return false;
951 }
252b5132 952
04925e1e 953 entry->filename = string;
252b5132 954
04925e1e
AM
955 /* We have found a dynamic object to include in the link. The ELF
956 backend linker will create a DT_NEEDED entry in the .dynamic
957 section naming this file. If this file includes a DT_SONAME
958 entry, it will be used. Otherwise, the ELF linker will just use
959 the name of the file. For an archive found by searching, like
960 this one, the DT_NEEDED entry should consist of just the name of
961 the file, without the path information used to find it. Note
962 that we only need to do this if we have a dynamic object; an
963 archive will never be referenced by a DT_NEEDED entry.
252b5132 964
04925e1e
AM
965 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
966 very pretty. I haven't been able to think of anything that is
967 pretty, though. */
968 if (bfd_check_format (entry->the_bfd, bfd_object)
969 && (entry->the_bfd->flags & DYNAMIC) != 0)
970 {
04925e1e 971 ASSERT (entry->is_archive && entry->search_dirs_flag);
252b5132 972
04925e1e 973 /* Rather than duplicating the logic above. Just use the
1c9acd94 974 filename we recorded earlier. */
04925e1e 975
fed2999d 976 filename = lbasename (entry->filename);
1c9acd94 977 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
04925e1e
AM
978 }
979
980 return true;
981}
982
41392f03
AM
983EOF
984fi
cde43e70
AM
985
986if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
41392f03
AM
987cat >>e${EMULATION_NAME}.c <<EOF
988
989/* A variant of lang_output_section_find. Used by place_orphan. */
04925e1e 990
04925e1e
AM
991static lang_output_section_statement_type *
992output_rel_find ()
993{
994 lang_statement_union_type *u;
995 lang_output_section_statement_type *lookup;
996
997 for (u = lang_output_section_statement.head;
998 u != (lang_statement_union_type *) NULL;
999 u = lookup->next)
1000 {
1001 lookup = &u->output_section_statement;
1002 if (strncmp (".rel", lookup->name, 4) == 0
1003 && lookup->bfd_section != NULL
1004 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1005 {
1006 return lookup;
1007 }
252b5132 1008 }
04925e1e 1009 return (lang_output_section_statement_type *) NULL;
252b5132
RH
1010}
1011
95500e1c
JJ
1012/* Find the last output section before given output statement.
1013 Used by place_orphan. */
1014
1015static asection *
1016output_prev_sec_find (os)
1017 lang_output_section_statement_type *os;
1018{
1019 asection *s = (asection *) NULL;
1020 lang_statement_union_type *u;
1021 lang_output_section_statement_type *lookup;
1022
1023 for (u = lang_output_section_statement.head;
1024 u != (lang_statement_union_type *) NULL;
1025 u = lookup->next)
1026 {
1027 lookup = &u->output_section_statement;
1028 if (lookup == os)
cde43e70
AM
1029 return s;
1030
1031 if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL)
95500e1c
JJ
1032 s = lookup->bfd_section;
1033 }
1034
cde43e70 1035 return NULL;
95500e1c
JJ
1036}
1037
252b5132
RH
1038/* Place an orphan section. We use this to put random SHF_ALLOC
1039 sections in the right segment. */
1040
41392f03 1041struct orphan_save {
6a345e87 1042 lang_output_section_statement_type *os;
5ba47421 1043 asection **section;
6a345e87
AM
1044 lang_statement_union_type **stmt;
1045};
252b5132 1046
252b5132
RH
1047static boolean
1048gld${EMULATION_NAME}_place_orphan (file, s)
1049 lang_input_statement_type *file;
1050 asection *s;
1051{
aea4bd9d
AM
1052 static struct orphan_save hold_text;
1053 static struct orphan_save hold_rodata;
1054 static struct orphan_save hold_data;
1055 static struct orphan_save hold_bss;
1056 static struct orphan_save hold_rel;
1057 static struct orphan_save hold_interp;
c940e6fc 1058 static struct orphan_save hold_sdata;
f9989030 1059 static int count = 1;
6a345e87 1060 struct orphan_save *place;
71bfc0ae 1061 lang_statement_list_type *old;
252b5132
RH
1062 lang_statement_list_type add;
1063 etree_type *address;
a854a4a7 1064 const char *secname;
252b5132 1065 const char *outsecname;
a854a4a7 1066 const char *ps = NULL;
252b5132
RH
1067 lang_output_section_statement_type *os;
1068
aea4bd9d
AM
1069 secname = bfd_get_section_name (s->owner, s);
1070
577a0623 1071 if (! config.unique_orphan_sections && ! unique_section_p (secname))
252b5132 1072 {
6d02a667 1073 /* Look through the script to see where to place this section. */
a854a4a7
AM
1074 os = lang_output_section_find (secname);
1075
1076 if (os != NULL
0f33d40b
AM
1077 && (os->bfd_section == NULL
1078 || ((s->flags ^ os->bfd_section->flags)
1079 & (SEC_LOAD | SEC_ALLOC)) == 0))
a854a4a7 1080 {
0f33d40b 1081 /* We already have an output section statement with this
22af9fd3 1082 name, and its bfd section, if any, has compatible flags. */
39dcfe18 1083 lang_add_section (&os->children, s, os, file);
a854a4a7
AM
1084 return true;
1085 }
252b5132
RH
1086 }
1087
aea4bd9d
AM
1088 if (hold_text.os == NULL)
1089 hold_text.os = lang_output_section_find (".text");
252b5132
RH
1090
1091 /* If this is a final link, then always put .gnu.warning.SYMBOL
1092 sections into the .text section to get them out of the way. */
1093 if (! link_info.shared
1094 && ! link_info.relocateable
1095 && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
6a345e87 1096 && hold_text.os != NULL)
252b5132 1097 {
39dcfe18 1098 lang_add_section (&hold_text.os->children, s, hold_text.os, file);
252b5132
RH
1099 return true;
1100 }
1101
1102 /* Decide which segment the section should go in based on the
1103 section name and section flags. We put loadable .note sections
1104 right after the .interp section, so that the PT_NOTE segment is
1105 stored right after the program headers where the OS can read it
1106 in the first page. */
aea4bd9d
AM
1107#define HAVE_SECTION(hold, name) \
1108(hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
1109
1d475d82 1110 if ((s->flags & SEC_EXCLUDE) != 0 && !link_info.relocateable)
22af9fd3
AM
1111 {
1112 if (s->output_section == NULL)
1113 s->output_section = bfd_abs_section_ptr;
1114 return true;
1115 }
71bfc0ae
AM
1116
1117 place = NULL;
1118 if ((s->flags & SEC_ALLOC) == 0)
1119 ;
252b5132 1120 else if ((s->flags & SEC_LOAD) != 0
577a0623 1121 && strncmp (secname, ".note", 5) == 0
aea4bd9d 1122 && HAVE_SECTION (hold_interp, ".interp"))
6a345e87 1123 place = &hold_interp;
252b5132 1124 else if ((s->flags & SEC_HAS_CONTENTS) == 0
aea4bd9d 1125 && HAVE_SECTION (hold_bss, ".bss"))
6a345e87 1126 place = &hold_bss;
c940e6fc
JW
1127 else if ((s->flags & SEC_SMALL_DATA) != 0
1128 && HAVE_SECTION (hold_sdata, ".sdata"))
1129 place = &hold_sdata;
252b5132 1130 else if ((s->flags & SEC_READONLY) == 0
aea4bd9d 1131 && HAVE_SECTION (hold_data, ".data"))
6a345e87 1132 place = &hold_data;
252b5132 1133 else if (strncmp (secname, ".rel", 4) == 0
aea4bd9d
AM
1134 && (hold_rel.os != NULL
1135 || (hold_rel.os = output_rel_find ()) != NULL))
db6751f2
JJ
1136 {
1137 if (! link_info.relocateable && link_info.combreloc)
1138 {
1139 if (strncmp (secname, ".rela", 5) == 0)
1140 os = lang_output_section_find (".rela.dyn");
1141 else
1142 os = lang_output_section_find (".rel.dyn");
1143
1144 if (os != NULL
1145 && os->bfd_section != NULL
1146 && ((s->flags ^ os->bfd_section->flags)
1147 & (SEC_LOAD | SEC_ALLOC)) == 0)
1148 {
1149 lang_add_section (&os->children, s, os, file);
1150 return true;
1151 }
1152 }
1153 place = &hold_rel;
1154 }
71bfc0ae 1155 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == SEC_READONLY
aea4bd9d 1156 && HAVE_SECTION (hold_rodata, ".rodata"))
6a345e87 1157 place = &hold_rodata;
71bfc0ae 1158 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == (SEC_CODE | SEC_READONLY)
6a345e87
AM
1159 && hold_text.os != NULL)
1160 place = &hold_text;
252b5132 1161
aea4bd9d
AM
1162#undef HAVE_SECTION
1163
252b5132
RH
1164 /* Choose a unique name for the section. This will be needed if the
1165 same section name appears in the input file with different
f813923c 1166 loadable or allocatable characteristics. */
252b5132
RH
1167 outsecname = secname;
1168 if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
b3ea3584
AM
1169 {
1170 outsecname = bfd_get_unique_section_name (output_bfd,
1171 outsecname,
1172 &count);
1173 if (outsecname == NULL)
1174 einfo ("%F%P: place_orphan failed: %E\n");
1175 }
252b5132 1176
71bfc0ae
AM
1177 /* Start building a list of statements for this section.
1178 First save the current statement pointer. */
1179 old = stat_ptr;
1180
1181 /* If we have found an appropriate place for the output section
1182 statements for this orphan, add them to our own private list,
1183 inserting them later into the global statement list. */
5ba47421 1184 if (place != NULL)
252b5132 1185 {
5ba47421
AM
1186 stat_ptr = &add;
1187 lang_list_init (stat_ptr);
71bfc0ae 1188 }
5ba47421 1189
71bfc0ae
AM
1190 if (config.build_constructors)
1191 {
5ba47421
AM
1192 /* If the name of the section is representable in C, then create
1193 symbols to mark the start and the end of the section. */
1194 for (ps = outsecname; *ps != '\0'; ps++)
3882b010 1195 if (! ISALNUM (*ps) && *ps != '_')
5ba47421 1196 break;
71bfc0ae 1197 if (*ps == '\0')
5ba47421
AM
1198 {
1199 char *symname;
1200 etree_type *e_align;
1201
1202 symname = (char *) xmalloc (ps - outsecname + sizeof "__start_");
1203 sprintf (symname, "__start_%s", outsecname);
1204 e_align = exp_unop (ALIGN_K,
1205 exp_intop ((bfd_vma) 1 << s->alignment_power));
1206 lang_add_assignment (exp_assop ('=', symname, e_align));
1207 }
252b5132
RH
1208 }
1209
01cc8ff8 1210 if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
252b5132 1211 address = exp_intop ((bfd_vma) 0);
01cc8ff8
AM
1212 else
1213 address = NULL;
252b5132 1214
aea4bd9d
AM
1215 os = lang_enter_output_section_statement (outsecname, address, 0,
1216 (bfd_vma) 0,
1217 (etree_type *) NULL,
1218 (etree_type *) NULL,
1219 (etree_type *) NULL);
252b5132 1220
39dcfe18 1221 lang_add_section (&os->children, s, os, file);
252b5132 1222
20d04697
L
1223 lang_leave_output_section_statement
1224 ((bfd_vma) 0, "*default*",
ee3cc2e2 1225 (struct lang_output_section_phdr_list *) NULL, NULL);
20d04697 1226
71bfc0ae 1227 if (config.build_constructors && *ps == '\0')
252b5132 1228 {
71bfc0ae 1229 char *symname;
252b5132 1230
71bfc0ae
AM
1231 /* lang_leave_ouput_section_statement resets stat_ptr. Put
1232 stat_ptr back where we want it. */
1233 if (place != NULL)
1234 stat_ptr = &add;
252b5132 1235
71bfc0ae
AM
1236 symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_");
1237 sprintf (symname, "__stop_%s", outsecname);
1238 lang_add_assignment (exp_assop ('=', symname,
1239 exp_nameop (NAME, ".")));
1240 }
5ba47421 1241
71bfc0ae
AM
1242 /* Restore the global list pointer. */
1243 stat_ptr = old;
1244
1245 if (place != NULL)
1246 {
cde43e70 1247 asection *snew, **pps;
5ba47421
AM
1248
1249 snew = os->bfd_section;
95500e1c 1250
cde43e70
AM
1251 /* Shuffle the bfd section list to make the output file look
1252 neater. This is really only cosmetic. */
1253 if (place->section == NULL)
5ba47421 1254 {
cde43e70 1255 asection *bfd_section = place->os->bfd_section;
5ba47421 1256
cde43e70
AM
1257 /* If the output statement hasn't been used to place
1258 any input sections (and thus doesn't have an output
1259 bfd_section), look for the closest prior output statement
1260 having an output section. */
1261 if (bfd_section == NULL)
1262 bfd_section = output_prev_sec_find (place->os);
1263
1264 if (bfd_section != NULL && bfd_section != snew)
1265 place->section = &bfd_section->next;
1266 }
1267
1268 if (place->section != NULL)
1269 {
3dfe7a8c 1270 /* Unlink the section. */
5ba47421
AM
1271 for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
1272 ;
3dfe7a8c 1273 bfd_section_list_remove (output_bfd, pps);
5ba47421
AM
1274
1275 /* Now tack it on to the "place->os" section list. */
3dfe7a8c 1276 bfd_section_list_insert (output_bfd, place->section, snew);
5ba47421 1277 }
5ba47421 1278
cde43e70
AM
1279 /* Save the end of this list. Further ophans of this type will
1280 follow the one we've just added. */
1281 place->section = &snew->next;
1282
1283 /* The following is non-cosmetic. We try to put the output
1284 statements in some sort of reasonable order here, because
1285 they determine the final load addresses of the orphan
1286 sections. In addition, placing output statements in the
1287 wrong order may require extra segments. For instance,
1288 given a typical situation of all read-only sections placed
1289 in one segment and following that a segment containing all
1290 the read-write sections, we wouldn't want to place an orphan
1291 read/write section before or amongst the read-only ones. */
ed15ac6a 1292 if (add.head != NULL)
01cc8ff8 1293 {
ed15ac6a
AM
1294 if (place->stmt == NULL)
1295 {
1296 /* Put the new statement list right at the head. */
1297 *add.tail = place->os->header.next;
1298 place->os->header.next = add.head;
1299 }
1300 else
1301 {
1302 /* Put it after the last orphan statement we added. */
1303 *add.tail = *place->stmt;
1304 *place->stmt = add.head;
1305 }
71bfc0ae 1306
ed15ac6a
AM
1307 /* Fix the global list pointer if we happened to tack our
1308 new list at the tail. */
1309 if (*old->tail == add.head)
1310 old->tail = add.tail;
71bfc0ae 1311
ed15ac6a
AM
1312 /* Save the end of this list. */
1313 place->stmt = add.tail;
1314 }
6a345e87 1315 }
252b5132
RH
1316
1317 return true;
1318}
c56feb2b
AM
1319EOF
1320fi
1321
1322if test x"$LDEMUL_FINISH" != xgld"$EMULATION_NAME"_finish; then
1323cat >>e${EMULATION_NAME}.c <<EOF
252b5132 1324
73d074b4
DJ
1325static void
1326gld${EMULATION_NAME}_finish ()
1327{
65765700 1328 if (bfd_elf${ELFSIZE}_discard_info (output_bfd, &link_info))
73d074b4 1329 {
e3dc8847
HPN
1330 lang_reset_memory_regions ();
1331
73d074b4
DJ
1332 /* Resize the sections. */
1333 lang_size_sections (stat_ptr->head, abs_output_section,
ca0b5847 1334 &stat_ptr->head, 0, (bfd_vma) 0, NULL);
73d074b4
DJ
1335
1336 /* Redo special stuff. */
1337 ldemul_after_allocation ();
1338
1339 /* Do the assignments again. */
1340 lang_do_assignments (stat_ptr->head, abs_output_section,
2c382fb6 1341 (fill_type *) 0, (bfd_vma) 0);
73d074b4
DJ
1342 }
1343}
41392f03
AM
1344EOF
1345fi
1346
1347if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
1348cat >>e${EMULATION_NAME}.c <<EOF
252b5132
RH
1349
1350static char *
41392f03 1351gld${EMULATION_NAME}_get_script (isfile)
252b5132
RH
1352 int *isfile;
1353EOF
1354
1355if test -n "$COMPILE_IN"
1356then
1357# Scripts compiled in.
1358
1359# sed commands to quote an ld script as a C string.
597e2591 1360sc="-f stringify.sed"
252b5132
RH
1361
1362cat >>e${EMULATION_NAME}.c <<EOF
60bcf0fa 1363{
252b5132
RH
1364 *isfile = 0;
1365
1366 if (link_info.relocateable == true && config.build_constructors == true)
597e2591 1367 return
252b5132 1368EOF
597e2591
ILT
1369sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1370echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
1371sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1372echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1373sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
61585df2 1374if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
597e2591
ILT
1375echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1376sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
db6751f2 1377fi
252b5132 1378if test -n "$GENERATE_SHLIB_SCRIPT" ; then
db6751f2
JJ
1379echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
1380sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
597e2591
ILT
1381echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
1382sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
252b5132 1383fi
db6751f2
JJ
1384echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
1385sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
597e2591
ILT
1386echo ' ; else return' >> e${EMULATION_NAME}.c
1387sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1388echo '; }' >> e${EMULATION_NAME}.c
252b5132
RH
1389
1390else
1391# Scripts read from the filesystem.
1392
1393cat >>e${EMULATION_NAME}.c <<EOF
60bcf0fa 1394{
252b5132
RH
1395 *isfile = 1;
1396
1397 if (link_info.relocateable == true && config.build_constructors == true)
1398 return "ldscripts/${EMULATION_NAME}.xu";
1399 else if (link_info.relocateable == true)
1400 return "ldscripts/${EMULATION_NAME}.xr";
1401 else if (!config.text_read_only)
1402 return "ldscripts/${EMULATION_NAME}.xbn";
1403 else if (!config.magic_demand_paged)
1404 return "ldscripts/${EMULATION_NAME}.xn";
1405 else if (link_info.shared)
1406 return "ldscripts/${EMULATION_NAME}.xs";
1407 else
1408 return "ldscripts/${EMULATION_NAME}.x";
1409}
252b5132 1410
3b108066 1411EOF
41392f03
AM
1412fi
1413fi
3b108066 1414
41392f03 1415if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
3b108066 1416
4b209b22 1417if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
3b108066 1418
e0ee487b
L
1419if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
1420cat >>e${EMULATION_NAME}.c <<EOF
1421 $PARSE_AND_LIST_PROLOGUE
1422EOF
1423fi
1424
e0ee487b
L
1425cat >>e${EMULATION_NAME}.c <<EOF
1426
1427#include "getopt.h"
1428
6c1439be
L
1429#define OPTION_DISABLE_NEW_DTAGS (400)
1430#define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
a1ab1d2a 1431#define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
65765700 1432#define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
6c1439be 1433
e0ee487b
L
1434static struct option longopts[] =
1435{
1436EOF
e0ee487b
L
1437
1438if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1439cat >>e${EMULATION_NAME}.c <<EOF
699845ef
L
1440 /* getopt allows abbreviations, so we do this to stop it from
1441 treating -d/-e as abbreviations for these options. */
6c1439be 1442 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
699845ef
L
1443 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1444 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
6c1439be 1445 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
65765700 1446 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
a1ab1d2a
UD
1447 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1448 {"Bgroup", no_argument, NULL, OPTION_GROUP},
e0ee487b
L
1449EOF
1450fi
1451
1452if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
1453cat >>e${EMULATION_NAME}.c <<EOF
1454 $PARSE_AND_LIST_LONGOPTS
1455EOF
1456fi
1457
e0ee487b
L
1458cat >>e${EMULATION_NAME}.c <<EOF
1459 {NULL, no_argument, NULL, 0}
1460};
1461
04925e1e 1462
4b209b22 1463static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
41392f03 1464
e0ee487b 1465static int
4b209b22 1466gld${EMULATION_NAME}_parse_args (argc, argv)
e0ee487b
L
1467 int argc;
1468 char ** argv;
1469{
4b209b22
AM
1470 int longind;
1471 int optc;
1472 static int prevoptind = -1;
e0ee487b
L
1473 int prevopterr = opterr;
1474 int wanterror;
e0ee487b 1475
4b209b22 1476 if (prevoptind != optind)
e0ee487b
L
1477 opterr = 0;
1478
4b209b22
AM
1479 wanterror = opterr;
1480 prevoptind = optind;
1481
41392f03
AM
1482 optc = getopt_long_only (argc, argv,
1483 "-${PARSE_AND_LIST_SHORTOPTS}z:", longopts,
1484 &longind);
e0ee487b
L
1485 opterr = prevopterr;
1486
1487 switch (optc)
1488 {
1489 default:
1490 if (wanterror)
1491 xexit (1);
4b209b22 1492 optind = prevoptind;
e0ee487b 1493 return 0;
6c1439be 1494
e0ee487b 1495EOF
e0ee487b
L
1496
1497if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1498cat >>e${EMULATION_NAME}.c <<EOF
6c1439be
L
1499 case OPTION_DISABLE_NEW_DTAGS:
1500 link_info.new_dtags = false;
1501 break;
1502
1503 case OPTION_ENABLE_NEW_DTAGS:
1504 link_info.new_dtags = true;
1505 break;
1506
65765700
JJ
1507 case OPTION_EH_FRAME_HDR:
1508 link_info.eh_frame_hdr = true;
1509 break;
1510
a1ab1d2a
UD
1511 case OPTION_GROUP:
1512 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
1513 /* Groups must be self-contained. */
1514 link_info.no_undefined = true;
1515 break;
1516
e0ee487b
L
1517 case 'z':
1518 if (strcmp (optarg, "initfirst") == 0)
1519 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
1520 else if (strcmp (optarg, "interpose") == 0)
1521 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
1522 else if (strcmp (optarg, "loadfltr") == 0)
1523 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
1524 else if (strcmp (optarg, "nodefaultlib") == 0)
1525 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
1526 else if (strcmp (optarg, "nodelete") == 0)
1527 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
1528 else if (strcmp (optarg, "nodlopen") == 0)
1529 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
1530 else if (strcmp (optarg, "nodump") == 0)
1531 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
1532 else if (strcmp (optarg, "now") == 0)
1533 {
1534 link_info.flags |= (bfd_vma) DF_BIND_NOW;
1535 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
1536 }
1537 else if (strcmp (optarg, "origin") == 0)
1538 {
1539 link_info.flags |= (bfd_vma) DF_ORIGIN;
1540 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
1541 }
a1ab1d2a
UD
1542 else if (strcmp (optarg, "defs") == 0)
1543 link_info.no_undefined = true;
aa713662
L
1544 else if (strcmp (optarg, "muldefs") == 0)
1545 link_info.allow_multiple_definition = true;
db6751f2
JJ
1546 else if (strcmp (optarg, "combreloc") == 0)
1547 link_info.combreloc = true;
1548 else if (strcmp (optarg, "nocombreloc") == 0)
1549 link_info.combreloc = false;
8bd621d8
AM
1550 else if (strcmp (optarg, "nocopyreloc") == 0)
1551 link_info.nocopyreloc = true;
e0ee487b 1552 /* What about the other Solaris -z options? FIXME. */
6c1439be 1553 break;
e0ee487b
L
1554EOF
1555fi
1556
1557if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
1558cat >>e${EMULATION_NAME}.c <<EOF
1559 $PARSE_AND_LIST_ARGS_CASES
1560EOF
1561fi
1562
e0ee487b
L
1563cat >>e${EMULATION_NAME}.c <<EOF
1564 }
1565
1566 return 1;
1567}
1568
41392f03
AM
1569EOF
1570fi
1571
4b209b22 1572if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
41392f03
AM
1573cat >>e${EMULATION_NAME}.c <<EOF
1574
4b209b22 1575static void gld${EMULATION_NAME}_list_options PARAMS ((FILE * file));
04925e1e 1576
e0ee487b 1577static void
4b209b22 1578gld${EMULATION_NAME}_list_options (file)
e0ee487b
L
1579 FILE * file;
1580{
1581EOF
e0ee487b
L
1582
1583if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1584cat >>e${EMULATION_NAME}.c <<EOF
a1ab1d2a 1585 fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
6c1439be
L
1586 fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
1587 fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
65765700 1588 fprintf (file, _(" --eh-frame-hdr\tCreate .eh_frame_hdr section\n"));
ec38dd05 1589 fprintf (file, _(" -z combreloc\t\tMerge dynamic relocs into one section and sort\n"));
a1ab1d2a 1590 fprintf (file, _(" -z defs\t\tDisallows undefined symbols\n"));
f813923c
HPN
1591 fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
1592 fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
e0ee487b 1593 fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
aa713662 1594 fprintf (file, _(" -z muldefs\t\tAllow multiple definitions\n"));
146e7110
AM
1595 fprintf (file, _(" -z nocombreloc\tDon't merge dynamic relocs into one section\n"));
1596 fprintf (file, _(" -z nocopyreloc\tDon't create copy relocs\n"));
e0ee487b
L
1597 fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
1598 fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
f813923c
HPN
1599 fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));
1600 fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n"));
e0ee487b 1601 fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n"));
73e87d70 1602 fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n\t\t\t at runtime\n"));
19e3be22 1603 fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n"));
e0ee487b
L
1604EOF
1605fi
1606
1607if test -n "$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},
fac1652d 1662 ${LDEMUL_NEW_VERS_PATTERN-NULL}
252b5132
RH
1663};
1664EOF
This page took 0.320589 seconds and 4 git commands to generate.